From c2c2e03409f5f5405e79d9d9156202b75cb5b35b Mon Sep 17 00:00:00 2001 From: Iacopo Spalletti <avvisi@spalletti.it> Date: Sun, 17 Jul 2005 02:06:00 -0400 Subject: [ACPI] update hotkey documentation http://bugzilla.kernel.org/show_bug.cgi?id=4903 Signed-off-by: Iacopo Spalletti <avvisi@spalletti.it> Signed-off-by: Len Brown <len.brown@intel.com> --- Documentation/acpi-hotkey.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/acpi-hotkey.txt b/Documentation/acpi-hotkey.txt index 4c115a7bb82..d57b02a4746 100644 --- a/Documentation/acpi-hotkey.txt +++ b/Documentation/acpi-hotkey.txt @@ -33,3 +33,6 @@ The result of the execution of this aml method is attached to /proc/acpi/hotkey/poll_method, which is dnyamically created. Please use command "cat /proc/acpi/hotkey/polling_method" to retrieve it. + +Note: Use cmdline "acpi_specific_hotkey" to enable legacy platform +specific drivers. -- cgit v1.2.3-70-g09d2 From 79778a27be4c704552a18cf2a3e8b9e30623acd1 Mon Sep 17 00:00:00 2001 From: James Bottomley <James.Bottomley@steeleye.com> Date: Thu, 4 Aug 2005 17:33:22 -0500 Subject: [SCSI] aic7xxx: upport all sequencer and core fixes from adaptec version 6.3.9 This patch upports all relevant code fixes and bumps the driver version to 7.0 to signify starting a new tree. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> --- Documentation/scsi/aic7xxx.txt | 6 +- drivers/scsi/aic7xxx/aic7xxx.h | 4 +- drivers/scsi/aic7xxx/aic7xxx.reg | 4 +- drivers/scsi/aic7xxx/aic7xxx.seq | 5 +- drivers/scsi/aic7xxx/aic7xxx_93cx6.c | 36 +- drivers/scsi/aic7xxx/aic7xxx_core.c | 60 +- drivers/scsi/aic7xxx/aic7xxx_osm.c | 2 + drivers/scsi/aic7xxx/aic7xxx_osm.h | 2 +- drivers/scsi/aic7xxx/aic7xxx_reg.h_shipped | 6 +- drivers/scsi/aic7xxx/aic7xxx_reg_print.c_shipped | 4 +- drivers/scsi/aic7xxx/aic7xxx_seq.h_shipped | 933 ++++++++++++----------- 11 files changed, 549 insertions(+), 513 deletions(-) (limited to 'Documentation') diff --git a/Documentation/scsi/aic7xxx.txt b/Documentation/scsi/aic7xxx.txt index 160e7354cd1..47e74ddc4bc 100644 --- a/Documentation/scsi/aic7xxx.txt +++ b/Documentation/scsi/aic7xxx.txt @@ -1,5 +1,5 @@ ==================================================================== -= Adaptec Aic7xxx Fast -> Ultra160 Family Manager Set v6.2.28 = += Adaptec Aic7xxx Fast -> Ultra160 Family Manager Set v7.0 = = README for = = The Linux Operating System = ==================================================================== @@ -131,6 +131,10 @@ The following information is available in this file: SCSI "stub" effects. 2. Version History + 7.0 (4th August, 2005) + - Updated driver to use SCSI transport class infrastructure + - Upported sequencer and core fixes from last adaptec released + version of the driver. 6.2.36 (June 3rd, 2003) - Correct code that disables PCI parity error checking. - Correct and simplify handling of the ignore wide residue diff --git a/drivers/scsi/aic7xxx/aic7xxx.h b/drivers/scsi/aic7xxx/aic7xxx.h index 088cbc23743..91d294c6334 100644 --- a/drivers/scsi/aic7xxx/aic7xxx.h +++ b/drivers/scsi/aic7xxx/aic7xxx.h @@ -37,7 +37,7 @@ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.h#79 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.h#85 $ * * $FreeBSD$ */ @@ -243,7 +243,7 @@ typedef enum { */ AHC_AIC7850_FE = AHC_SPIOCAP|AHC_AUTOPAUSE|AHC_TARGETMODE|AHC_ULTRA, AHC_AIC7860_FE = AHC_AIC7850_FE, - AHC_AIC7870_FE = AHC_TARGETMODE, + AHC_AIC7870_FE = AHC_TARGETMODE|AHC_AUTOPAUSE, AHC_AIC7880_FE = AHC_AIC7870_FE|AHC_ULTRA, /* * Although we have space for both the initiator and diff --git a/drivers/scsi/aic7xxx/aic7xxx.reg b/drivers/scsi/aic7xxx/aic7xxx.reg index 810ec700d9f..e196d83b93c 100644 --- a/drivers/scsi/aic7xxx/aic7xxx.reg +++ b/drivers/scsi/aic7xxx/aic7xxx.reg @@ -39,7 +39,7 @@ * * $FreeBSD$ */ -VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#39 $" +VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $" /* * This file is processed by the aic7xxx_asm utility for use in assembling @@ -1306,7 +1306,6 @@ scratch_ram { */ MWI_RESIDUAL { size 1 - alias TARG_IMMEDIATE_SCB } /* * SCBID of the next SCB to be started by the controller. @@ -1461,6 +1460,7 @@ scratch_ram { */ LAST_MSG { size 1 + alias TARG_IMMEDIATE_SCB } /* diff --git a/drivers/scsi/aic7xxx/aic7xxx.seq b/drivers/scsi/aic7xxx/aic7xxx.seq index d84b741fbab..15196390e28 100644 --- a/drivers/scsi/aic7xxx/aic7xxx.seq +++ b/drivers/scsi/aic7xxx/aic7xxx.seq @@ -40,7 +40,7 @@ * $FreeBSD$ */ -VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#56 $" +VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#58 $" PATCH_ARG_LIST = "struct ahc_softc *ahc" PREFIX = "ahc_" @@ -679,6 +679,7 @@ await_busfree: clr SCSIBUSL; /* Prevent bit leakage durint SELTO */ } and SXFRCTL0, ~SPIOEN; + mvi SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT; test SSTAT1,REQINIT|BUSFREE jz .; test SSTAT1, BUSFREE jnz poll_for_work; mvi MISSED_BUSFREE call set_seqint; @@ -1097,7 +1098,7 @@ ultra2_dmahalt: test SCB_RESIDUAL_DATACNT[3], SG_LAST_SEG jz dma_mid_sg; if ((ahc->flags & AHC_TARGETROLE) != 0) { test SSTAT0, TARGET jz dma_last_sg; - if ((ahc->flags & AHC_TMODE_WIDEODD_BUG) != 0) { + if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0) { test DMAPARAMS, DIRECTION jz dma_mid_sg; } } diff --git a/drivers/scsi/aic7xxx/aic7xxx_93cx6.c b/drivers/scsi/aic7xxx/aic7xxx_93cx6.c index 468d612a44f..3cb07e114e8 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_93cx6.c +++ b/drivers/scsi/aic7xxx/aic7xxx_93cx6.c @@ -28,9 +28,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.c#17 $ - * - * $FreeBSD$ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.c#19 $ */ /* @@ -64,7 +62,6 @@ * is preceded by an initial zero (leading 0, followed by 16-bits, MSB * first). The clock cycling from low to high initiates the next data * bit to be sent from the chip. - * */ #ifdef __linux__ @@ -81,14 +78,22 @@ * Right now, we only have to read the SEEPROM. But we make it easier to * add other 93Cx6 functions. */ -static struct seeprom_cmd { +struct seeprom_cmd { uint8_t len; - uint8_t bits[9]; -} seeprom_read = {3, {1, 1, 0}}; + uint8_t bits[11]; +}; +/* Short opcodes for the c46 */ static struct seeprom_cmd seeprom_ewen = {9, {1, 0, 0, 1, 1, 0, 0, 0, 0}}; static struct seeprom_cmd seeprom_ewds = {9, {1, 0, 0, 0, 0, 0, 0, 0, 0}}; + +/* Long opcodes for the C56/C66 */ +static struct seeprom_cmd seeprom_long_ewen = {11, {1, 0, 0, 1, 1, 0, 0, 0, 0}}; +static struct seeprom_cmd seeprom_long_ewds = {11, {1, 0, 0, 0, 0, 0, 0, 0, 0}}; + +/* Common opcodes */ static struct seeprom_cmd seeprom_write = {3, {1, 0, 1}}; +static struct seeprom_cmd seeprom_read = {3, {1, 1, 0}}; /* * Wait for the SEERDY to go high; about 800 ns. @@ -222,12 +227,25 @@ int ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf, u_int start_addr, u_int count) { + struct seeprom_cmd *ewen, *ewds; uint16_t v; uint8_t temp; int i, k; /* Place the chip into write-enable mode */ - send_seeprom_cmd(sd, &seeprom_ewen); + if (sd->sd_chip == C46) { + ewen = &seeprom_ewen; + ewds = &seeprom_ewds; + } else if (sd->sd_chip == C56_66) { + ewen = &seeprom_long_ewen; + ewds = &seeprom_long_ewds; + } else { + printf("ahc_write_seeprom: unsupported seeprom type %d\n", + sd->sd_chip); + return (0); + } + + send_seeprom_cmd(sd, ewen); reset_seeprom(sd); /* Write all requested data out to the seeprom. */ @@ -277,7 +295,7 @@ ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf, } /* Put the chip back into write-protect mode */ - send_seeprom_cmd(sd, &seeprom_ewds); + send_seeprom_cmd(sd, ewds); reset_seeprom(sd); return (1); diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c index 7bc01e41bcc..58ac46103eb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_core.c +++ b/drivers/scsi/aic7xxx/aic7xxx_core.c @@ -37,9 +37,7 @@ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#134 $ - * - * $FreeBSD$ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#155 $ */ #ifdef __linux__ @@ -287,10 +285,19 @@ ahc_restart(struct ahc_softc *ahc) ahc_outb(ahc, SEQ_FLAGS2, ahc_inb(ahc, SEQ_FLAGS2) & ~SCB_DMA); } + + /* + * Clear any pending sequencer interrupt. It is no + * longer relevant since we're resetting the Program + * Counter. + */ + ahc_outb(ahc, CLRINT, CLRSEQINT); + ahc_outb(ahc, MWI_RESIDUAL, 0); ahc_outb(ahc, SEQCTL, ahc->seqctl); ahc_outb(ahc, SEQADDR0, 0); ahc_outb(ahc, SEQADDR1, 0); + ahc_unpause(ahc); } @@ -1174,19 +1181,20 @@ ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat) scb_index); } #endif - /* - * Force a renegotiation with this target just in - * case the cable was pulled and will later be - * re-attached. The target may forget its negotiation - * settings with us should it attempt to reselect - * during the interruption. The target will not issue - * a unit attention in this case, so we must always - * renegotiate. - */ ahc_scb_devinfo(ahc, &devinfo, scb); - ahc_force_renegotiation(ahc, &devinfo); ahc_set_transaction_status(scb, CAM_SEL_TIMEOUT); ahc_freeze_devq(ahc, scb); + + /* + * Cancel any pending transactions on the device + * now that it seems to be missing. This will + * also revert us to async/narrow transfers until + * we can renegotiate with the device. + */ + ahc_handle_devreset(ahc, &devinfo, + CAM_SEL_TIMEOUT, + "Selection Timeout", + /*verbose_level*/1); } ahc_outb(ahc, CLRINT, CLRSCSIINT); ahc_restart(ahc); @@ -3763,8 +3771,9 @@ ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, /*period*/0, /*offset*/0, /*ppr_options*/0, AHC_TRANS_CUR, /*paused*/TRUE); - ahc_send_async(ahc, devinfo->channel, devinfo->target, - CAM_LUN_WILDCARD, AC_SENT_BDR, NULL); + if (status != CAM_SEL_TIMEOUT) + ahc_send_async(ahc, devinfo->channel, devinfo->target, + CAM_LUN_WILDCARD, AC_SENT_BDR, NULL); if (message != NULL && (verbose_level <= bootverbose)) @@ -4003,14 +4012,6 @@ ahc_reset(struct ahc_softc *ahc, int reinit) * to disturb the integrity of the bus. */ ahc_pause(ahc); - if ((ahc_inb(ahc, HCNTRL) & CHIPRST) != 0) { - /* - * The chip has not been initialized since - * PCI/EISA/VLB bus reset. Don't trust - * "left over BIOS data". - */ - ahc->flags |= AHC_NO_BIOS_INIT; - } sxfrctl1_b = 0; if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7770) { u_int sblkctl; @@ -5036,14 +5037,23 @@ ahc_pause_and_flushwork(struct ahc_softc *ahc) ahc->flags |= AHC_ALL_INTERRUPTS; paused = FALSE; do { - if (paused) + if (paused) { ahc_unpause(ahc); + /* + * Give the sequencer some time to service + * any active selections. + */ + ahc_delay(500); + } ahc_intr(ahc); ahc_pause(ahc); paused = TRUE; ahc_outb(ahc, SCSISEQ, ahc_inb(ahc, SCSISEQ) & ~ENSELO); - ahc_clear_critical_section(ahc); intstat = ahc_inb(ahc, INTSTAT); + if ((intstat & INT_PEND) == 0) { + ahc_clear_critical_section(ahc); + intstat = ahc_inb(ahc, INTSTAT); + } } while (--maxloops && (intstat != 0xFF || (ahc->features & AHC_REMOVABLE) == 0) && ((intstat & INT_PEND) != 0 diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 116d0f51ca2..e39361ac6a4 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -635,6 +635,8 @@ ahc_linux_slave_alloc(struct scsi_device *sdev) targ->sdev[sdev->lun] = sdev; + spi_period(starget) = 0; + return 0; } diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index 0e47ac21754..c5299626924 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -265,7 +265,7 @@ ahc_scb_timer_reset(struct scb *scb, u_int usec) /***************************** SMP support ************************************/ #include <linux/spinlock.h> -#define AIC7XXX_DRIVER_VERSION "6.2.36" +#define AIC7XXX_DRIVER_VERSION "7.0" /*************************** Device Data Structures ***************************/ /* diff --git a/drivers/scsi/aic7xxx/aic7xxx_reg.h_shipped b/drivers/scsi/aic7xxx/aic7xxx_reg.h_shipped index 7c1390ed117..2ce1febca20 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_reg.h_shipped +++ b/drivers/scsi/aic7xxx/aic7xxx_reg.h_shipped @@ -2,8 +2,8 @@ * DO NOT EDIT - This file is automatically generated * from the following source files: * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#56 $ - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#39 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#58 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $ */ typedef int (ahc_reg_print_t)(u_int, u_int *, u_int); typedef struct ahc_reg_parse_entry { @@ -1298,7 +1298,6 @@ ahc_reg_print_t ahc_sg_cache_pre_print; #define CMDSIZE_TABLE_TAIL 0x34 #define MWI_RESIDUAL 0x38 -#define TARG_IMMEDIATE_SCB 0x38 #define NEXT_QUEUED_SCB 0x39 @@ -1380,6 +1379,7 @@ ahc_reg_print_t ahc_sg_cache_pre_print; #define RETURN_2 0x52 #define LAST_MSG 0x53 +#define TARG_IMMEDIATE_SCB 0x53 #define SCSISEQ_TEMPLATE 0x54 #define ENSELO 0x40 diff --git a/drivers/scsi/aic7xxx/aic7xxx_reg_print.c_shipped b/drivers/scsi/aic7xxx/aic7xxx_reg_print.c_shipped index 9c713775d44..88bfd767c51 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_reg_print.c_shipped +++ b/drivers/scsi/aic7xxx/aic7xxx_reg_print.c_shipped @@ -2,8 +2,8 @@ * DO NOT EDIT - This file is automatically generated * from the following source files: * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#56 $ - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#39 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#58 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $ */ #include "aic7xxx_osm.h" diff --git a/drivers/scsi/aic7xxx/aic7xxx_seq.h_shipped b/drivers/scsi/aic7xxx/aic7xxx_seq.h_shipped index cf411368a87..4cee08521e7 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_seq.h_shipped +++ b/drivers/scsi/aic7xxx/aic7xxx_seq.h_shipped @@ -2,13 +2,13 @@ * DO NOT EDIT - This file is automatically generated * from the following source files: * - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#56 $ - * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#39 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.seq#58 $ + * $Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $ */ static uint8_t seqprog[] = { 0xb2, 0x00, 0x00, 0x08, 0xf7, 0x11, 0x22, 0x08, - 0x00, 0x65, 0xec, 0x59, + 0x00, 0x65, 0xee, 0x59, 0xf7, 0x01, 0x02, 0x08, 0xff, 0x6a, 0x24, 0x08, 0x40, 0x00, 0x40, 0x68, @@ -21,15 +21,15 @@ static uint8_t seqprog[] = { 0x01, 0x4d, 0xc8, 0x30, 0x00, 0x4c, 0x12, 0x70, 0x01, 0x39, 0xa2, 0x30, - 0x00, 0x6a, 0xc0, 0x5e, + 0x00, 0x6a, 0xc2, 0x5e, 0x01, 0x51, 0x20, 0x31, 0x01, 0x57, 0xae, 0x00, 0x0d, 0x6a, 0x76, 0x00, - 0x00, 0x51, 0x12, 0x5e, + 0x00, 0x51, 0x14, 0x5e, 0x01, 0x51, 0xc8, 0x30, 0x00, 0x39, 0xc8, 0x60, 0x00, 0xbb, 0x30, 0x70, - 0xc1, 0x6a, 0xd8, 0x5e, + 0xc1, 0x6a, 0xda, 0x5e, 0x01, 0xbf, 0x72, 0x30, 0x01, 0x40, 0x7e, 0x31, 0x01, 0x90, 0x80, 0x30, @@ -49,10 +49,10 @@ static uint8_t seqprog[] = { 0x08, 0x6a, 0x78, 0x00, 0x01, 0x50, 0xc8, 0x30, 0xe0, 0x6a, 0xcc, 0x00, - 0x48, 0x6a, 0xfc, 0x5d, + 0x48, 0x6a, 0xfe, 0x5d, 0x01, 0x6a, 0xdc, 0x01, 0x88, 0x6a, 0xcc, 0x00, - 0x48, 0x6a, 0xfc, 0x5d, + 0x48, 0x6a, 0xfe, 0x5d, 0x01, 0x6a, 0x26, 0x01, 0xf0, 0x19, 0x7a, 0x08, 0x0f, 0x18, 0xc8, 0x08, @@ -93,7 +93,7 @@ static uint8_t seqprog[] = { 0x00, 0x65, 0x20, 0x41, 0x02, 0x57, 0xae, 0x00, 0x00, 0x65, 0x9e, 0x40, - 0x61, 0x6a, 0xd8, 0x5e, + 0x61, 0x6a, 0xda, 0x5e, 0x08, 0x51, 0x20, 0x71, 0x02, 0x0b, 0xb2, 0x78, 0x00, 0x65, 0xae, 0x40, @@ -106,7 +106,7 @@ static uint8_t seqprog[] = { 0x80, 0x3d, 0x7a, 0x00, 0x20, 0x6a, 0x16, 0x00, 0x00, 0x65, 0xcc, 0x41, - 0x00, 0x65, 0xb2, 0x5e, + 0x00, 0x65, 0xb4, 0x5e, 0x00, 0x65, 0x12, 0x40, 0x20, 0x11, 0xd2, 0x68, 0x20, 0x6a, 0x18, 0x00, @@ -140,27 +140,27 @@ static uint8_t seqprog[] = { 0x80, 0x0b, 0xc4, 0x79, 0x12, 0x01, 0x02, 0x00, 0x01, 0xab, 0xac, 0x30, - 0xe4, 0x6a, 0x6e, 0x5d, + 0xe4, 0x6a, 0x70, 0x5d, 0x40, 0x6a, 0x16, 0x00, - 0x80, 0x3e, 0x84, 0x5d, + 0x80, 0x3e, 0x86, 0x5d, 0x20, 0xb8, 0x18, 0x79, - 0x20, 0x6a, 0x84, 0x5d, - 0x00, 0xab, 0x84, 0x5d, + 0x20, 0x6a, 0x86, 0x5d, + 0x00, 0xab, 0x86, 0x5d, 0x01, 0xa9, 0x78, 0x30, 0x10, 0xb8, 0x20, 0x79, - 0xe4, 0x6a, 0x6e, 0x5d, + 0xe4, 0x6a, 0x70, 0x5d, 0x00, 0x65, 0xae, 0x40, 0x10, 0x03, 0x3c, 0x69, 0x08, 0x3c, 0x5a, 0x69, 0x04, 0x3c, 0x92, 0x69, 0x02, 0x3c, 0x98, 0x69, 0x01, 0x3c, 0x44, 0x79, - 0xff, 0x6a, 0x70, 0x00, + 0xff, 0x6a, 0xa6, 0x00, 0x00, 0x65, 0xa4, 0x59, - 0x00, 0x6a, 0xc0, 0x5e, - 0xff, 0x38, 0x30, 0x71, + 0x00, 0x6a, 0xc2, 0x5e, + 0xff, 0x53, 0x30, 0x71, 0x0d, 0x6a, 0x76, 0x00, - 0x00, 0x38, 0x12, 0x5e, + 0x00, 0x53, 0x14, 0x5e, 0x00, 0x65, 0xea, 0x58, 0x12, 0x01, 0x02, 0x00, 0x00, 0x65, 0x18, 0x41, @@ -168,10 +168,10 @@ static uint8_t seqprog[] = { 0x00, 0x65, 0xf2, 0x58, 0xfd, 0x57, 0xae, 0x08, 0x00, 0x65, 0xae, 0x40, - 0xe4, 0x6a, 0x6e, 0x5d, + 0xe4, 0x6a, 0x70, 0x5d, 0x20, 0x3c, 0x4a, 0x79, - 0x02, 0x6a, 0x84, 0x5d, - 0x04, 0x6a, 0x84, 0x5d, + 0x02, 0x6a, 0x86, 0x5d, + 0x04, 0x6a, 0x86, 0x5d, 0x01, 0x03, 0x4c, 0x69, 0xf7, 0x11, 0x22, 0x08, 0xff, 0x6a, 0x24, 0x08, @@ -182,13 +182,13 @@ static uint8_t seqprog[] = { 0x80, 0x86, 0xc8, 0x08, 0x01, 0x4f, 0xc8, 0x30, 0x00, 0x50, 0x6c, 0x61, - 0xc4, 0x6a, 0x6e, 0x5d, + 0xc4, 0x6a, 0x70, 0x5d, 0x40, 0x3c, 0x68, 0x79, - 0x28, 0x6a, 0x84, 0x5d, + 0x28, 0x6a, 0x86, 0x5d, 0x00, 0x65, 0x4c, 0x41, - 0x08, 0x6a, 0x84, 0x5d, + 0x08, 0x6a, 0x86, 0x5d, 0x00, 0x65, 0x4c, 0x41, - 0x84, 0x6a, 0x6e, 0x5d, + 0x84, 0x6a, 0x70, 0x5d, 0x00, 0x65, 0xf2, 0x58, 0x01, 0x66, 0xc8, 0x30, 0x01, 0x64, 0xd8, 0x31, @@ -208,16 +208,16 @@ static uint8_t seqprog[] = { 0xf7, 0x3c, 0x78, 0x08, 0x00, 0x65, 0x20, 0x41, 0x40, 0xaa, 0x7e, 0x10, - 0x04, 0xaa, 0x6e, 0x5d, - 0x00, 0x65, 0x56, 0x42, - 0xc4, 0x6a, 0x6e, 0x5d, + 0x04, 0xaa, 0x70, 0x5d, + 0x00, 0x65, 0x58, 0x42, + 0xc4, 0x6a, 0x70, 0x5d, 0xc0, 0x6a, 0x7e, 0x00, - 0x00, 0xa8, 0x84, 0x5d, + 0x00, 0xa8, 0x86, 0x5d, 0xe4, 0x6a, 0x06, 0x00, - 0x00, 0x6a, 0x84, 0x5d, + 0x00, 0x6a, 0x86, 0x5d, 0x00, 0x65, 0x4c, 0x41, 0x10, 0x3c, 0xa8, 0x69, - 0x00, 0xbb, 0x8a, 0x44, + 0x00, 0xbb, 0x8c, 0x44, 0x18, 0x6a, 0xda, 0x01, 0x01, 0x69, 0xd8, 0x31, 0x1c, 0x6a, 0xd0, 0x01, @@ -227,31 +227,32 @@ static uint8_t seqprog[] = { 0x01, 0x93, 0x26, 0x01, 0x03, 0x6a, 0x2a, 0x01, 0x01, 0x69, 0x32, 0x31, - 0x1c, 0x6a, 0xe0, 0x5d, + 0x1c, 0x6a, 0xe2, 0x5d, 0x0a, 0x93, 0x26, 0x01, - 0x00, 0x65, 0xa8, 0x5e, + 0x00, 0x65, 0xaa, 0x5e, 0x01, 0x50, 0xa0, 0x18, 0x02, 0x6a, 0x22, 0x05, 0x1a, 0x01, 0x02, 0x00, 0x80, 0x6a, 0x74, 0x00, 0x40, 0x6a, 0x78, 0x00, 0x40, 0x6a, 0x16, 0x00, - 0x00, 0x65, 0xd8, 0x5d, + 0x00, 0x65, 0xda, 0x5d, 0x01, 0x3f, 0xc8, 0x30, - 0xbf, 0x64, 0x56, 0x7a, - 0x80, 0x64, 0x9e, 0x73, - 0xa0, 0x64, 0x00, 0x74, - 0xc0, 0x64, 0xf4, 0x73, - 0xe0, 0x64, 0x30, 0x74, - 0x01, 0x6a, 0xd8, 0x5e, + 0xbf, 0x64, 0x58, 0x7a, + 0x80, 0x64, 0xa0, 0x73, + 0xa0, 0x64, 0x02, 0x74, + 0xc0, 0x64, 0xf6, 0x73, + 0xe0, 0x64, 0x32, 0x74, + 0x01, 0x6a, 0xda, 0x5e, 0x00, 0x65, 0xcc, 0x41, 0xf7, 0x11, 0x22, 0x08, 0x01, 0x06, 0xd4, 0x30, 0xff, 0x6a, 0x24, 0x08, 0xf7, 0x01, 0x02, 0x08, - 0x09, 0x0c, 0xe6, 0x79, + 0xc0, 0x6a, 0x78, 0x00, + 0x09, 0x0c, 0xe8, 0x79, 0x08, 0x0c, 0x04, 0x68, - 0xb1, 0x6a, 0xd8, 0x5e, + 0xb1, 0x6a, 0xda, 0x5e, 0xff, 0x6a, 0x26, 0x09, 0x12, 0x01, 0x02, 0x00, 0x02, 0x6a, 0x08, 0x30, @@ -264,29 +265,29 @@ static uint8_t seqprog[] = { 0x00, 0xa5, 0x4a, 0x21, 0x00, 0xa6, 0x4c, 0x21, 0x00, 0xa7, 0x4e, 0x25, - 0x08, 0xeb, 0xdc, 0x7e, - 0x80, 0xeb, 0x06, 0x7a, + 0x08, 0xeb, 0xde, 0x7e, + 0x80, 0xeb, 0x08, 0x7a, 0xff, 0x6a, 0xd6, 0x09, - 0x08, 0xeb, 0x0a, 0x6a, + 0x08, 0xeb, 0x0c, 0x6a, 0xff, 0x6a, 0xd4, 0x0c, - 0x80, 0xa3, 0xdc, 0x6e, - 0x88, 0xeb, 0x20, 0x72, - 0x08, 0xeb, 0xdc, 0x6e, - 0x04, 0xea, 0x24, 0xe2, - 0x08, 0xee, 0xdc, 0x6e, + 0x80, 0xa3, 0xde, 0x6e, + 0x88, 0xeb, 0x22, 0x72, + 0x08, 0xeb, 0xde, 0x6e, + 0x04, 0xea, 0x26, 0xe2, + 0x08, 0xee, 0xde, 0x6e, 0x04, 0x6a, 0xd0, 0x81, 0x05, 0xa4, 0xc0, 0x89, 0x03, 0xa5, 0xc2, 0x31, 0x09, 0x6a, 0xd6, 0x05, - 0x00, 0x65, 0x08, 0x5a, + 0x00, 0x65, 0x0a, 0x5a, 0x06, 0xa4, 0xd4, 0x89, - 0x80, 0x94, 0xdc, 0x7e, + 0x80, 0x94, 0xde, 0x7e, 0x07, 0xe9, 0x10, 0x31, 0x01, 0xe9, 0x46, 0x31, - 0x00, 0xa3, 0xba, 0x5e, - 0x00, 0x65, 0xfa, 0x59, + 0x00, 0xa3, 0xbc, 0x5e, + 0x00, 0x65, 0xfc, 0x59, 0x01, 0xa4, 0xca, 0x30, - 0x80, 0xa3, 0x34, 0x7a, + 0x80, 0xa3, 0x36, 0x7a, 0x02, 0x65, 0xca, 0x00, 0x01, 0x65, 0xf8, 0x31, 0x80, 0x93, 0x26, 0x01, @@ -294,162 +295,162 @@ static uint8_t seqprog[] = { 0x01, 0x8c, 0xc8, 0x30, 0x00, 0x88, 0xc8, 0x18, 0x02, 0x64, 0xc8, 0x88, - 0xff, 0x64, 0xdc, 0x7e, - 0xff, 0x8d, 0x4a, 0x6a, - 0xff, 0x8e, 0x4a, 0x6a, + 0xff, 0x64, 0xde, 0x7e, + 0xff, 0x8d, 0x4c, 0x6a, + 0xff, 0x8e, 0x4c, 0x6a, 0x03, 0x8c, 0xd4, 0x98, - 0x00, 0x65, 0xdc, 0x56, + 0x00, 0x65, 0xde, 0x56, 0x01, 0x64, 0x70, 0x30, 0xff, 0x64, 0xc8, 0x10, 0x01, 0x64, 0xc8, 0x18, 0x00, 0x8c, 0x18, 0x19, 0xff, 0x8d, 0x1a, 0x21, 0xff, 0x8e, 0x1c, 0x25, - 0xc0, 0x3c, 0x5a, 0x7a, - 0x21, 0x6a, 0xd8, 0x5e, + 0xc0, 0x3c, 0x5c, 0x7a, + 0x21, 0x6a, 0xda, 0x5e, 0xa8, 0x6a, 0x76, 0x00, 0x79, 0x6a, 0x76, 0x00, - 0x40, 0x3f, 0x62, 0x6a, + 0x40, 0x3f, 0x64, 0x6a, 0x04, 0x3b, 0x76, 0x00, 0x04, 0x6a, 0xd4, 0x81, - 0x20, 0x3c, 0x6a, 0x7a, - 0x51, 0x6a, 0xd8, 0x5e, - 0x00, 0x65, 0x82, 0x42, + 0x20, 0x3c, 0x6c, 0x7a, + 0x51, 0x6a, 0xda, 0x5e, + 0x00, 0x65, 0x84, 0x42, 0x20, 0x3c, 0x78, 0x00, - 0x00, 0xb3, 0xba, 0x5e, + 0x00, 0xb3, 0xbc, 0x5e, 0x07, 0xac, 0x10, 0x31, 0x05, 0xb3, 0x46, 0x31, 0x88, 0x6a, 0xcc, 0x00, - 0xac, 0x6a, 0xee, 0x5d, + 0xac, 0x6a, 0xf0, 0x5d, 0xa3, 0x6a, 0xcc, 0x00, - 0xb3, 0x6a, 0xf2, 0x5d, - 0x00, 0x65, 0x3a, 0x5a, + 0xb3, 0x6a, 0xf4, 0x5d, + 0x00, 0x65, 0x3c, 0x5a, 0xfd, 0xa4, 0x48, 0x09, 0x03, 0x8c, 0x10, 0x30, - 0x00, 0x65, 0xe6, 0x5d, - 0x01, 0xa4, 0x94, 0x7a, + 0x00, 0x65, 0xe8, 0x5d, + 0x01, 0xa4, 0x96, 0x7a, 0x04, 0x3b, 0x76, 0x08, 0x01, 0x3b, 0x26, 0x31, 0x80, 0x02, 0x04, 0x00, - 0x10, 0x0c, 0x8a, 0x7a, - 0x03, 0x9e, 0x8c, 0x6a, + 0x10, 0x0c, 0x8c, 0x7a, + 0x03, 0x9e, 0x8e, 0x6a, 0x7f, 0x02, 0x04, 0x08, - 0x91, 0x6a, 0xd8, 0x5e, + 0x91, 0x6a, 0xda, 0x5e, 0x00, 0x65, 0xcc, 0x41, 0x01, 0xa4, 0xca, 0x30, - 0x80, 0xa3, 0x9a, 0x7a, + 0x80, 0xa3, 0x9c, 0x7a, 0x02, 0x65, 0xca, 0x00, 0x01, 0x65, 0xf8, 0x31, 0x01, 0x3b, 0x26, 0x31, - 0x00, 0x65, 0x0e, 0x5a, - 0x01, 0xfc, 0xa8, 0x6a, - 0x80, 0x0b, 0x9e, 0x6a, - 0x10, 0x0c, 0x9e, 0x7a, - 0x20, 0x93, 0x9e, 0x6a, + 0x00, 0x65, 0x10, 0x5a, + 0x01, 0xfc, 0xaa, 0x6a, + 0x80, 0x0b, 0xa0, 0x6a, + 0x10, 0x0c, 0xa0, 0x7a, + 0x20, 0x93, 0xa0, 0x6a, 0x02, 0x93, 0x26, 0x01, - 0x02, 0xfc, 0xb2, 0x7a, - 0x40, 0x0d, 0xc6, 0x6a, + 0x02, 0xfc, 0xb4, 0x7a, + 0x40, 0x0d, 0xc8, 0x6a, 0x01, 0xa4, 0x48, 0x01, - 0x00, 0x65, 0xc6, 0x42, - 0x40, 0x0d, 0xb8, 0x6a, - 0x00, 0x65, 0x0e, 0x5a, - 0x00, 0x65, 0xaa, 0x42, - 0x80, 0xfc, 0xc2, 0x7a, - 0x80, 0xa4, 0xc2, 0x6a, + 0x00, 0x65, 0xc8, 0x42, + 0x40, 0x0d, 0xba, 0x6a, + 0x00, 0x65, 0x10, 0x5a, + 0x00, 0x65, 0xac, 0x42, + 0x80, 0xfc, 0xc4, 0x7a, + 0x80, 0xa4, 0xc4, 0x6a, 0xff, 0xa5, 0x4a, 0x19, 0xff, 0xa6, 0x4c, 0x21, 0xff, 0xa7, 0x4e, 0x21, 0xf8, 0xfc, 0x48, 0x09, 0x7f, 0xa3, 0x46, 0x09, - 0x04, 0x3b, 0xe2, 0x6a, + 0x04, 0x3b, 0xe4, 0x6a, 0x02, 0x93, 0x26, 0x01, - 0x01, 0x94, 0xc8, 0x7a, - 0x01, 0x94, 0xc8, 0x7a, - 0x01, 0x94, 0xc8, 0x7a, - 0x01, 0x94, 0xc8, 0x7a, - 0x01, 0x94, 0xc8, 0x7a, - 0x01, 0xa4, 0xe0, 0x7a, - 0x01, 0xfc, 0xd6, 0x7a, - 0x01, 0x94, 0xe2, 0x6a, - 0x01, 0x94, 0xe2, 0x6a, - 0x01, 0x94, 0xe2, 0x6a, - 0x00, 0x65, 0x82, 0x42, - 0x01, 0x94, 0xe0, 0x7a, - 0x10, 0x94, 0xe2, 0x6a, + 0x01, 0x94, 0xca, 0x7a, + 0x01, 0x94, 0xca, 0x7a, + 0x01, 0x94, 0xca, 0x7a, + 0x01, 0x94, 0xca, 0x7a, + 0x01, 0x94, 0xca, 0x7a, + 0x01, 0xa4, 0xe2, 0x7a, + 0x01, 0xfc, 0xd8, 0x7a, + 0x01, 0x94, 0xe4, 0x6a, + 0x01, 0x94, 0xe4, 0x6a, + 0x01, 0x94, 0xe4, 0x6a, + 0x00, 0x65, 0x84, 0x42, + 0x01, 0x94, 0xe2, 0x7a, + 0x10, 0x94, 0xe4, 0x6a, 0xd7, 0x93, 0x26, 0x09, - 0x28, 0x93, 0xe6, 0x6a, + 0x28, 0x93, 0xe8, 0x6a, 0x01, 0x85, 0x0a, 0x01, - 0x02, 0xfc, 0xee, 0x6a, + 0x02, 0xfc, 0xf0, 0x6a, 0x01, 0x14, 0x46, 0x31, 0xff, 0x6a, 0x10, 0x09, 0xfe, 0x85, 0x0a, 0x09, - 0xff, 0x38, 0xfc, 0x6a, - 0x80, 0xa3, 0xfc, 0x7a, - 0x80, 0x0b, 0xfa, 0x7a, - 0x04, 0x3b, 0xfc, 0x7a, + 0xff, 0x38, 0xfe, 0x6a, + 0x80, 0xa3, 0xfe, 0x7a, + 0x80, 0x0b, 0xfc, 0x7a, + 0x04, 0x3b, 0xfe, 0x7a, 0xbf, 0x3b, 0x76, 0x08, 0x01, 0x3b, 0x26, 0x31, - 0x00, 0x65, 0x0e, 0x5a, - 0x01, 0x0b, 0x0a, 0x6b, - 0x10, 0x0c, 0xfe, 0x7a, - 0x04, 0x93, 0x08, 0x6b, - 0x01, 0x94, 0x06, 0x7b, - 0x10, 0x94, 0x08, 0x6b, + 0x00, 0x65, 0x10, 0x5a, + 0x01, 0x0b, 0x0c, 0x6b, + 0x10, 0x0c, 0x00, 0x7b, + 0x04, 0x93, 0x0a, 0x6b, + 0x01, 0x94, 0x08, 0x7b, + 0x10, 0x94, 0x0a, 0x6b, 0xc7, 0x93, 0x26, 0x09, 0x01, 0x99, 0xd4, 0x30, - 0x38, 0x93, 0x0c, 0x6b, - 0xff, 0x08, 0x5a, 0x6b, - 0xff, 0x09, 0x5a, 0x6b, - 0xff, 0x0a, 0x5a, 0x6b, - 0xff, 0x38, 0x28, 0x7b, + 0x38, 0x93, 0x0e, 0x6b, + 0xff, 0x08, 0x5c, 0x6b, + 0xff, 0x09, 0x5c, 0x6b, + 0xff, 0x0a, 0x5c, 0x6b, + 0xff, 0x38, 0x2a, 0x7b, 0x04, 0x14, 0x10, 0x31, 0x01, 0x38, 0x18, 0x31, 0x02, 0x6a, 0x1a, 0x31, 0x88, 0x6a, 0xcc, 0x00, - 0x14, 0x6a, 0xf4, 0x5d, - 0x00, 0x38, 0xe0, 0x5d, + 0x14, 0x6a, 0xf6, 0x5d, + 0x00, 0x38, 0xe2, 0x5d, 0xff, 0x6a, 0x70, 0x08, - 0x00, 0x65, 0x54, 0x43, - 0x80, 0xa3, 0x2e, 0x7b, + 0x00, 0x65, 0x56, 0x43, + 0x80, 0xa3, 0x30, 0x7b, 0x01, 0xa4, 0x48, 0x01, - 0x00, 0x65, 0x5a, 0x43, - 0x08, 0xeb, 0x34, 0x7b, - 0x00, 0x65, 0x0e, 0x5a, - 0x08, 0xeb, 0x30, 0x6b, + 0x00, 0x65, 0x5c, 0x43, + 0x08, 0xeb, 0x36, 0x7b, + 0x00, 0x65, 0x10, 0x5a, + 0x08, 0xeb, 0x32, 0x6b, 0x07, 0xe9, 0x10, 0x31, 0x01, 0xe9, 0xca, 0x30, 0x01, 0x65, 0x46, 0x31, - 0x00, 0x6a, 0xba, 0x5e, + 0x00, 0x6a, 0xbc, 0x5e, 0x88, 0x6a, 0xcc, 0x00, - 0xa4, 0x6a, 0xf4, 0x5d, - 0x08, 0x6a, 0xe0, 0x5d, + 0xa4, 0x6a, 0xf6, 0x5d, + 0x08, 0x6a, 0xe2, 0x5d, 0x0d, 0x93, 0x26, 0x01, - 0x00, 0x65, 0xa8, 0x5e, + 0x00, 0x65, 0xaa, 0x5e, 0x88, 0x6a, 0xcc, 0x00, - 0x00, 0x65, 0x8a, 0x5e, + 0x00, 0x65, 0x8c, 0x5e, 0x01, 0x99, 0x46, 0x31, - 0x00, 0xa3, 0xba, 0x5e, + 0x00, 0xa3, 0xbc, 0x5e, 0x01, 0x88, 0x10, 0x31, - 0x00, 0x65, 0x3a, 0x5a, - 0x00, 0x65, 0xfa, 0x59, + 0x00, 0x65, 0x3c, 0x5a, + 0x00, 0x65, 0xfc, 0x59, 0x03, 0x8c, 0x10, 0x30, - 0x00, 0x65, 0xe6, 0x5d, - 0x80, 0x0b, 0x82, 0x6a, - 0x80, 0x0b, 0x62, 0x6b, - 0x01, 0x0c, 0x5c, 0x7b, - 0x10, 0x0c, 0x82, 0x7a, - 0x03, 0x9e, 0x82, 0x6a, - 0x00, 0x65, 0x04, 0x5a, - 0x00, 0x6a, 0xba, 0x5e, - 0x01, 0xa4, 0x82, 0x6b, - 0xff, 0x38, 0x78, 0x7b, + 0x00, 0x65, 0xe8, 0x5d, + 0x80, 0x0b, 0x84, 0x6a, + 0x80, 0x0b, 0x64, 0x6b, + 0x01, 0x0c, 0x5e, 0x7b, + 0x10, 0x0c, 0x84, 0x7a, + 0x03, 0x9e, 0x84, 0x6a, + 0x00, 0x65, 0x06, 0x5a, + 0x00, 0x6a, 0xbc, 0x5e, + 0x01, 0xa4, 0x84, 0x6b, + 0xff, 0x38, 0x7a, 0x7b, 0x01, 0x38, 0xc8, 0x30, 0x00, 0x08, 0x40, 0x19, 0xff, 0x6a, 0xc8, 0x08, 0x00, 0x09, 0x42, 0x21, 0x00, 0x0a, 0x44, 0x21, 0xff, 0x6a, 0x70, 0x08, - 0x00, 0x65, 0x7a, 0x43, + 0x00, 0x65, 0x7c, 0x43, 0x03, 0x08, 0x40, 0x31, 0x03, 0x08, 0x40, 0x31, 0x01, 0x08, 0x40, 0x31, @@ -461,16 +462,16 @@ static uint8_t seqprog[] = { 0x04, 0x3c, 0xcc, 0x79, 0xfb, 0x3c, 0x78, 0x08, 0x04, 0x93, 0x20, 0x79, - 0x01, 0x0c, 0x8e, 0x6b, + 0x01, 0x0c, 0x90, 0x6b, 0x80, 0xba, 0x20, 0x79, 0x80, 0x04, 0x20, 0x79, - 0xe4, 0x6a, 0x6e, 0x5d, - 0x23, 0x6a, 0x84, 0x5d, - 0x01, 0x6a, 0x84, 0x5d, + 0xe4, 0x6a, 0x70, 0x5d, + 0x23, 0x6a, 0x86, 0x5d, + 0x01, 0x6a, 0x86, 0x5d, 0x00, 0x65, 0x20, 0x41, 0x00, 0x65, 0xcc, 0x41, - 0x80, 0x3c, 0xa2, 0x7b, - 0x21, 0x6a, 0xd8, 0x5e, + 0x80, 0x3c, 0xa4, 0x7b, + 0x21, 0x6a, 0xda, 0x5e, 0x01, 0xbc, 0x18, 0x31, 0x02, 0x6a, 0x1a, 0x31, 0x02, 0x6a, 0xf8, 0x01, @@ -480,16 +481,16 @@ static uint8_t seqprog[] = { 0xff, 0x6a, 0x12, 0x08, 0xff, 0x6a, 0x14, 0x08, 0xf3, 0xbc, 0xd4, 0x18, - 0xa0, 0x6a, 0xc8, 0x53, + 0xa0, 0x6a, 0xca, 0x53, 0x04, 0xa0, 0x10, 0x31, 0xac, 0x6a, 0x26, 0x01, 0x04, 0xa0, 0x10, 0x31, 0x03, 0x08, 0x18, 0x31, 0x88, 0x6a, 0xcc, 0x00, - 0xa0, 0x6a, 0xf4, 0x5d, - 0x00, 0xbc, 0xe0, 0x5d, + 0xa0, 0x6a, 0xf6, 0x5d, + 0x00, 0xbc, 0xe2, 0x5d, 0x3d, 0x6a, 0x26, 0x01, - 0x00, 0x65, 0xe0, 0x43, + 0x00, 0x65, 0xe2, 0x43, 0xff, 0x6a, 0x10, 0x09, 0xa4, 0x6a, 0x26, 0x01, 0x0c, 0xa0, 0x32, 0x31, @@ -499,128 +500,128 @@ static uint8_t seqprog[] = { 0x36, 0x6a, 0x26, 0x01, 0x02, 0x93, 0x26, 0x01, 0x35, 0x6a, 0x26, 0x01, - 0x00, 0x65, 0x9c, 0x5e, - 0x00, 0x65, 0x9c, 0x5e, + 0x00, 0x65, 0x9e, 0x5e, + 0x00, 0x65, 0x9e, 0x5e, 0x02, 0x93, 0x26, 0x01, 0xbf, 0x3c, 0x78, 0x08, - 0x04, 0x0b, 0xe6, 0x6b, - 0x10, 0x0c, 0xe2, 0x7b, - 0x01, 0x03, 0xe6, 0x6b, - 0x20, 0x93, 0xe8, 0x6b, - 0x04, 0x0b, 0xee, 0x6b, + 0x04, 0x0b, 0xe8, 0x6b, + 0x10, 0x0c, 0xe4, 0x7b, + 0x01, 0x03, 0xe8, 0x6b, + 0x20, 0x93, 0xea, 0x6b, + 0x04, 0x0b, 0xf0, 0x6b, 0x40, 0x3c, 0x78, 0x00, 0xc7, 0x93, 0x26, 0x09, - 0x38, 0x93, 0xf0, 0x6b, + 0x38, 0x93, 0xf2, 0x6b, 0x00, 0x65, 0xcc, 0x41, - 0x80, 0x3c, 0x56, 0x6c, + 0x80, 0x3c, 0x58, 0x6c, 0x01, 0x06, 0x50, 0x31, 0x80, 0xb8, 0x70, 0x01, 0x00, 0x65, 0xcc, 0x41, 0x10, 0x3f, 0x06, 0x00, 0x10, 0x6a, 0x06, 0x00, 0x01, 0x3a, 0xca, 0x30, - 0x80, 0x65, 0x1c, 0x64, - 0x10, 0xb8, 0x40, 0x6c, + 0x80, 0x65, 0x1e, 0x64, + 0x10, 0xb8, 0x42, 0x6c, 0xc0, 0x3e, 0xca, 0x00, - 0x40, 0xb8, 0x0c, 0x6c, + 0x40, 0xb8, 0x0e, 0x6c, 0xbf, 0x65, 0xca, 0x08, - 0x20, 0xb8, 0x20, 0x7c, + 0x20, 0xb8, 0x22, 0x7c, 0x01, 0x65, 0x0c, 0x30, - 0x00, 0x65, 0xd8, 0x5d, - 0xa0, 0x3f, 0x28, 0x64, + 0x00, 0x65, 0xda, 0x5d, + 0xa0, 0x3f, 0x2a, 0x64, 0x23, 0xb8, 0x0c, 0x08, - 0x00, 0x65, 0xd8, 0x5d, - 0xa0, 0x3f, 0x28, 0x64, - 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0x00, 0xbb, 0x12, 0x5e, - 0xff, 0xa8, 0x86, 0x7c, - 0x71, 0x6a, 0xd8, 0x5e, - 0x40, 0x51, 0x86, 0x64, - 0x00, 0x65, 0xb2, 0x5e, + 0x00, 0xbb, 0x14, 0x5e, + 0xff, 0xa8, 0x88, 0x7c, + 0x71, 0x6a, 0xda, 0x5e, + 0x40, 0x51, 0x88, 0x64, + 0x00, 0x65, 0xb4, 0x5e, 0x00, 0x65, 0xde, 0x41, - 0x00, 0xbb, 0x8a, 0x5c, + 0x00, 0xbb, 0x8c, 0x5c, 0x00, 0x65, 0xde, 0x41, - 0x00, 0x65, 0xb2, 0x5e, + 0x00, 0x65, 0xb4, 0x5e, 0x01, 0x65, 0xa2, 0x30, 0x01, 0xf8, 0xc8, 0x30, 0x01, 0x4e, 0xc8, 0x30, - 0x00, 0x6a, 0xb6, 0xdd, - 0x00, 0x51, 0xc8, 0x5d, + 0x00, 0x6a, 0xb8, 0xdd, + 0x00, 0x51, 0xca, 0x5d, 0x01, 0x4e, 0x9c, 0x18, 0x02, 0x6a, 0x22, 0x05, - 0xc0, 0x3c, 0x56, 0x6c, + 0xc0, 0x3c, 0x58, 0x6c, 0x04, 0xb8, 0x70, 0x01, - 0x00, 0x65, 0xd4, 0x5e, + 0x00, 0x65, 0xd6, 0x5e, 0x20, 0xb8, 0xde, 0x69, 0x01, 0xbb, 0xa2, 0x30, 0x3f, 0xba, 0x7c, 0x08, - 0x00, 0xb9, 0xce, 0x5c, + 0x00, 0xb9, 0xd0, 0x5c, 0x00, 0x65, 0xde, 0x41, 0x01, 0x06, 0xd4, 0x30, 0x20, 0x3c, 0xcc, 0x79, - 0x20, 0x3c, 0x5c, 0x7c, - 0x01, 0xa4, 0xb8, 0x7c, + 0x20, 0x3c, 0x5e, 0x7c, + 0x01, 0xa4, 0xba, 0x7c, 0x01, 0xb4, 0x68, 0x01, 0x00, 0x65, 0xcc, 0x41, - 0x00, 0x65, 0x5c, 0x44, + 0x00, 0x65, 0x5e, 0x44, 0x04, 0x14, 0x58, 0x31, 0x01, 0x06, 0xd4, 0x30, 0x08, 0xa0, 0x60, 0x31, 0xac, 0x6a, 0xcc, 0x00, - 0x14, 0x6a, 0xf4, 0x5d, + 0x14, 0x6a, 0xf6, 0x5d, 0x01, 0x06, 0xd4, 0x30, - 0xa0, 0x6a, 0xec, 0x5d, + 0xa0, 0x6a, 0xee, 0x5d, 0x00, 0x65, 0xcc, 0x41, 0xdf, 0x3c, 0x78, 0x08, 0x12, 0x01, 0x02, 0x00, - 0x00, 0x65, 0x5c, 0x44, + 0x00, 0x65, 0x5e, 0x44, 0x4c, 0x65, 0xcc, 0x28, 0x01, 0x3e, 0x20, 0x31, 0xd0, 0x66, 0xcc, 0x18, @@ -631,102 +632,102 @@ static uint8_t seqprog[] = { 0xd0, 0x65, 0xca, 0x18, 0x01, 0x3e, 0x20, 0x31, 0x30, 0x65, 0xd4, 0x18, - 0x00, 0x65, 0xe6, 0x4c, + 0x00, 0x65, 0xe8, 0x4c, 0xe1, 0x6a, 0x22, 0x01, 0xff, 0x6a, 0xd4, 0x08, 0x20, 0x65, 0xd4, 0x18, - 0x00, 0x65, 0xee, 0x54, + 0x00, 0x65, 0xf0, 0x54, 0xe1, 0x6a, 0x22, 0x01, 0xff, 0x6a, 0xd4, 0x08, 0x20, 0x65, 0xca, 0x18, 0xe0, 0x65, 0xd4, 0x18, - 0x00, 0x65, 0xf8, 0x4c, + 0x00, 0x65, 0xfa, 0x4c, 0xe1, 0x6a, 0x22, 0x01, 0xff, 0x6a, 0xd4, 0x08, 0xd0, 0x65, 0xd4, 0x18, - 0x00, 0x65, 0x00, 0x55, + 0x00, 0x65, 0x02, 0x55, 0xe1, 0x6a, 0x22, 0x01, 0xff, 0x6a, 0xd4, 0x08, 0x01, 0x6c, 0xa2, 0x30, - 0xff, 0x51, 0x12, 0x75, - 0x00, 0x51, 0x8e, 0x5d, + 0xff, 0x51, 0x14, 0x75, + 0x00, 0x51, 0x90, 0x5d, 0x01, 0x51, 0x20, 0x31, - 0x00, 0x65, 0x34, 0x45, + 0x00, 0x65, 0x36, 0x45, 0x3f, 0xba, 0xc8, 0x08, - 0x00, 0x3e, 0x34, 0x75, - 0x00, 0x65, 0xb0, 0x5e, + 0x00, 0x3e, 0x36, 0x75, + 0x00, 0x65, 0xb2, 0x5e, 0x80, 0x3c, 0x78, 0x00, 0x01, 0x06, 0xd4, 0x30, - 0x00, 0x65, 0xd8, 0x5d, + 0x00, 0x65, 0xda, 0x5d, 0x01, 0x3c, 0x78, 0x00, - 0xe0, 0x3f, 0x50, 0x65, + 0xe0, 0x3f, 0x52, 0x65, 0x02, 0x3c, 0x78, 0x00, - 0x20, 0x12, 0x50, 0x65, - 0x51, 0x6a, 0x5e, 0x5d, - 0x00, 0x51, 0x8e, 0x5d, - 0x51, 0x6a, 0x5e, 0x5d, + 0x20, 0x12, 0x52, 0x65, + 0x51, 0x6a, 0x60, 0x5d, + 0x00, 0x51, 0x90, 0x5d, + 0x51, 0x6a, 0x60, 0x5d, 0x01, 0x51, 0x20, 0x31, 0x04, 0x3c, 0x78, 0x00, 0x01, 0xb9, 0xc8, 0x30, - 0x00, 0x3d, 0x4e, 0x65, + 0x00, 0x3d, 0x50, 0x65, 0x08, 0x3c, 0x78, 0x00, 0x3f, 0xba, 0xc8, 0x08, - 0x00, 0x3e, 0x4e, 0x65, + 0x00, 0x3e, 0x50, 0x65, 0x10, 0x3c, 0x78, 0x00, - 0x04, 0xb8, 0x4e, 0x7d, + 0x04, 0xb8, 0x50, 0x7d, 0xfb, 0xb8, 0x70, 0x09, - 0x20, 0xb8, 0x44, 0x6d, + 0x20, 0xb8, 0x46, 0x6d, 0x01, 0x90, 0xc8, 0x30, 0xff, 0x6a, 0xa2, 0x00, - 0x00, 0x3d, 0xce, 0x5c, + 0x00, 0x3d, 0xd0, 0x5c, 0x01, 0x64, 0x20, 0x31, 0xff, 0x6a, 0x78, 0x08, 0x00, 0x65, 0xea, 0x58, - 0x10, 0xb8, 0x5c, 0x7c, - 0xff, 0x6a, 0x54, 0x5d, - 0x00, 0x65, 0x5c, 0x44, - 0x00, 0x65, 0xb0, 0x5e, - 0x31, 0x6a, 0xd8, 0x5e, - 0x00, 0x65, 0x5c, 0x44, + 0x10, 0xb8, 0x5e, 0x7c, + 0xff, 0x6a, 0x56, 0x5d, + 0x00, 0x65, 0x5e, 0x44, + 0x00, 0x65, 0xb2, 0x5e, + 0x31, 0x6a, 0xda, 0x5e, + 0x00, 0x65, 0x5e, 0x44, 0x10, 0x3f, 0x06, 0x00, 0x10, 0x6a, 0x06, 0x00, 0x01, 0x65, 0x74, 0x34, - 0x81, 0x6a, 0xd8, 0x5e, - 0x00, 0x65, 0x60, 0x45, + 0x81, 0x6a, 0xda, 0x5e, + 0x00, 0x65, 0x62, 0x45, 0x01, 0x06, 0xd4, 0x30, - 0x01, 0x0c, 0x60, 0x7d, - 0x04, 0x0c, 0x5a, 0x6d, + 0x01, 0x0c, 0x62, 0x7d, + 0x04, 0x0c, 0x5c, 0x6d, 0xe0, 0x03, 0x7e, 0x08, 0xe0, 0x3f, 0xcc, 0x61, 0x01, 0x65, 0xcc, 0x30, 0x01, 0x12, 0xda, 0x34, 0x01, 0x06, 0xd4, 0x34, - 0x01, 0x03, 0x6e, 0x6d, + 0x01, 0x03, 0x70, 0x6d, 0x40, 0x03, 0xcc, 0x08, 0x01, 0x65, 0x06, 0x30, 0x40, 0x65, 0xc8, 0x08, - 0x00, 0x66, 0x7c, 0x75, - 0x40, 0x65, 0x7c, 0x7d, - 0x00, 0x65, 0x7c, 0x5d, + 0x00, 0x66, 0x7e, 0x75, + 0x40, 0x65, 0x7e, 0x7d, + 0x00, 0x65, 0x7e, 0x5d, 0xff, 0x6a, 0xd4, 0x08, 0xff, 0x6a, 0xd4, 0x08, 0xff, 0x6a, 0xd4, 0x08, 0xff, 0x6a, 0xd4, 0x0c, 0x08, 0x01, 0x02, 0x00, - 0x02, 0x0b, 0x86, 0x7d, + 0x02, 0x0b, 0x88, 0x7d, 0x01, 0x65, 0x0c, 0x30, - 0x02, 0x0b, 0x8a, 0x7d, + 0x02, 0x0b, 0x8c, 0x7d, 0xf7, 0x01, 0x02, 0x0c, 0x01, 0x65, 0xc8, 0x30, - 0xff, 0x41, 0xae, 0x75, + 0xff, 0x41, 0xb0, 0x75, 0x01, 0x41, 0x20, 0x31, 0xff, 0x6a, 0xa4, 0x00, - 0x00, 0x65, 0x9e, 0x45, - 0xff, 0xbf, 0xae, 0x75, + 0x00, 0x65, 0xa0, 0x45, + 0xff, 0xbf, 0xb0, 0x75, 0x01, 0x90, 0xa4, 0x30, 0x01, 0xbf, 0x20, 0x31, - 0x00, 0xbb, 0x98, 0x65, - 0xff, 0x52, 0xac, 0x75, + 0x00, 0xbb, 0x9a, 0x65, + 0xff, 0x52, 0xae, 0x75, 0x01, 0xbf, 0xcc, 0x30, 0x01, 0x90, 0xca, 0x30, 0x01, 0x52, 0x20, 0x31, @@ -734,28 +735,28 @@ static uint8_t seqprog[] = { 0x01, 0x65, 0x20, 0x35, 0x01, 0xbf, 0x82, 0x34, 0x01, 0x64, 0xa2, 0x30, - 0x00, 0x6a, 0xc0, 0x5e, + 0x00, 0x6a, 0xc2, 0x5e, 0x0d, 0x6a, 0x76, 0x00, - 0x00, 0x51, 0x12, 0x46, + 0x00, 0x51, 0x14, 0x46, 0x01, 0x65, 0xa4, 0x30, 0xe0, 0x6a, 0xcc, 0x00, - 0x48, 0x6a, 0x06, 0x5e, + 0x48, 0x6a, 0x08, 0x5e, 0x01, 0x6a, 0xd0, 0x01, 0x01, 0x6a, 0xdc, 0x05, 0x88, 0x6a, 0xcc, 0x00, - 0x48, 0x6a, 0x06, 0x5e, - 0x01, 0x6a, 0xe0, 0x5d, + 0x48, 0x6a, 0x08, 0x5e, + 0x01, 0x6a, 0xe2, 0x5d, 0x01, 0x6a, 0x26, 0x05, 0x01, 0x65, 0xd8, 0x31, 0x09, 0xee, 0xdc, 0x01, - 0x80, 0xee, 0xcc, 0x7d, + 0x80, 0xee, 0xce, 0x7d, 0xff, 0x6a, 0xdc, 0x0d, 0x01, 0x65, 0x32, 0x31, 0x0a, 0x93, 0x26, 0x01, - 0x00, 0x65, 0xa8, 0x46, - 0x81, 0x6a, 0xd8, 0x5e, - 0x01, 0x0c, 0xd8, 0x7d, - 0x04, 0x0c, 0xd6, 0x6d, + 0x00, 0x65, 0xaa, 0x46, + 0x81, 0x6a, 0xda, 0x5e, + 0x01, 0x0c, 0xda, 0x7d, + 0x04, 0x0c, 0xd8, 0x6d, 0xe0, 0x03, 0x06, 0x08, 0xe0, 0x03, 0x7e, 0x0c, 0x01, 0x65, 0x18, 0x31, @@ -774,7 +775,7 @@ static uint8_t seqprog[] = { 0x01, 0x6c, 0xda, 0x34, 0x3d, 0x64, 0xa4, 0x28, 0x55, 0x64, 0xc8, 0x28, - 0x00, 0x65, 0x06, 0x46, + 0x00, 0x65, 0x08, 0x46, 0x2e, 0x64, 0xa4, 0x28, 0x66, 0x64, 0xc8, 0x28, 0x00, 0x6c, 0xda, 0x18, @@ -785,63 +786,63 @@ static uint8_t seqprog[] = { 0x00, 0x6c, 0xda, 0x24, 0x01, 0x65, 0xc8, 0x30, 0xe0, 0x6a, 0xcc, 0x00, - 0x44, 0x6a, 0x02, 0x5e, + 0x44, 0x6a, 0x04, 0x5e, 0x01, 0x90, 0xe2, 0x31, - 0x04, 0x3b, 0x26, 0x7e, + 0x04, 0x3b, 0x28, 0x7e, 0x30, 0x6a, 0xd0, 0x01, 0x20, 0x6a, 0xd0, 0x01, 0x1d, 0x6a, 0xdc, 0x01, - 0xdc, 0xee, 0x22, 0x66, - 0x00, 0x65, 0x3e, 0x46, + 0xdc, 0xee, 0x24, 0x66, + 0x00, 0x65, 0x40, 0x46, 0x20, 0x6a, 0xd0, 0x01, 0x01, 0x6a, 0xdc, 0x01, 0x20, 0xa0, 0xd8, 0x31, 0x09, 0xee, 0xdc, 0x01, - 0x80, 0xee, 0x2e, 0x7e, + 0x80, 0xee, 0x30, 0x7e, 0x11, 0x6a, 0xdc, 0x01, - 0x50, 0xee, 0x32, 0x66, + 0x50, 0xee, 0x34, 0x66, 0x20, 0x6a, 0xd0, 0x01, 0x09, 0x6a, 0xdc, 0x01, - 0x88, 0xee, 0x38, 0x66, + 0x88, 0xee, 0x3a, 0x66, 0x19, 0x6a, 0xdc, 0x01, - 0xd8, 0xee, 0x3c, 0x66, + 0xd8, 0xee, 0x3e, 0x66, 0xff, 0x6a, 0xdc, 0x09, - 0x18, 0xee, 0x40, 0x6e, + 0x18, 0xee, 0x42, 0x6e, 0xff, 0x6a, 0xd4, 0x0c, 0x88, 0x6a, 0xcc, 0x00, - 0x44, 0x6a, 0x02, 0x5e, - 0x20, 0x6a, 0xe0, 0x5d, + 0x44, 0x6a, 0x04, 0x5e, + 0x20, 0x6a, 0xe2, 0x5d, 0x01, 0x3b, 0x26, 0x31, - 0x04, 0x3b, 0x5a, 0x6e, + 0x04, 0x3b, 0x5c, 0x6e, 0xa0, 0x6a, 0xca, 0x00, 0x20, 0x65, 0xc8, 0x18, - 0x00, 0x65, 0x98, 0x5e, - 0x00, 0x65, 0x52, 0x66, + 0x00, 0x65, 0x9a, 0x5e, + 0x00, 0x65, 0x54, 0x66, 0x0a, 0x93, 0x26, 0x01, - 0x00, 0x65, 0xa8, 0x46, + 0x00, 0x65, 0xaa, 0x46, 0xa0, 0x6a, 0xcc, 0x00, 0xff, 0x6a, 0xc8, 0x08, - 0x20, 0x94, 0x5e, 0x6e, - 0x10, 0x94, 0x60, 0x6e, - 0x08, 0x94, 0x7a, 0x6e, - 0x08, 0x94, 0x7a, 0x6e, - 0x08, 0x94, 0x7a, 0x6e, + 0x20, 0x94, 0x60, 0x6e, + 0x10, 0x94, 0x62, 0x6e, + 0x08, 0x94, 0x7c, 0x6e, + 0x08, 0x94, 0x7c, 0x6e, + 0x08, 0x94, 0x7c, 0x6e, 0xff, 0x8c, 0xc8, 0x10, 0xc1, 0x64, 0xc8, 0x18, 0xf8, 0x64, 0xc8, 0x08, 0x01, 0x99, 0xda, 0x30, - 0x00, 0x66, 0x6e, 0x66, - 0xc0, 0x66, 0xaa, 0x76, + 0x00, 0x66, 0x70, 0x66, + 0xc0, 0x66, 0xac, 0x76, 0x60, 0x66, 0xc8, 0x18, 0x3d, 0x64, 0xc8, 0x28, - 0x00, 0x65, 0x5e, 0x46, + 0x00, 0x65, 0x60, 0x46, 0xf7, 0x93, 0x26, 0x09, - 0x08, 0x93, 0x7c, 0x6e, + 0x08, 0x93, 0x7e, 0x6e, 0x00, 0x62, 0xc4, 0x18, - 0x00, 0x65, 0xa8, 0x5e, - 0x00, 0x65, 0x88, 0x5e, - 0x00, 0x65, 0x88, 0x5e, - 0x00, 0x65, 0x88, 0x5e, + 0x00, 0x65, 0xaa, 0x5e, + 0x00, 0x65, 0x8a, 0x5e, + 0x00, 0x65, 0x8a, 0x5e, + 0x00, 0x65, 0x8a, 0x5e, 0x01, 0x99, 0xda, 0x30, 0x01, 0x99, 0xda, 0x30, 0x01, 0x99, 0xda, 0x30, @@ -858,11 +859,11 @@ static uint8_t seqprog[] = { 0x01, 0x6c, 0x32, 0x31, 0x01, 0x6c, 0x32, 0x31, 0x01, 0x6c, 0x32, 0x35, - 0x08, 0x94, 0xa8, 0x7e, + 0x08, 0x94, 0xaa, 0x7e, 0xf7, 0x93, 0x26, 0x09, - 0x08, 0x93, 0xac, 0x6e, + 0x08, 0x93, 0xae, 0x6e, 0xff, 0x6a, 0xd4, 0x0c, - 0x04, 0xb8, 0xd4, 0x6e, + 0x04, 0xb8, 0xd6, 0x6e, 0x01, 0x42, 0x7e, 0x31, 0xff, 0x6a, 0x76, 0x01, 0x01, 0x90, 0x84, 0x34, @@ -870,14 +871,14 @@ static uint8_t seqprog[] = { 0x01, 0x85, 0x0a, 0x01, 0x7f, 0x65, 0x10, 0x09, 0xfe, 0x85, 0x0a, 0x0d, - 0xff, 0x42, 0xd0, 0x66, - 0xff, 0x41, 0xc8, 0x66, - 0xd1, 0x6a, 0xd8, 0x5e, + 0xff, 0x42, 0xd2, 0x66, + 0xff, 0x41, 0xca, 0x66, + 0xd1, 0x6a, 0xda, 0x5e, 0xff, 0x6a, 0xca, 0x04, 0x01, 0x41, 0x20, 0x31, 0x01, 0xbf, 0x82, 0x30, 0x01, 0x6a, 0x76, 0x00, - 0x00, 0xbb, 0x12, 0x46, + 0x00, 0xbb, 0x14, 0x46, 0x01, 0x42, 0x20, 0x31, 0x01, 0xbf, 0x84, 0x34, 0x01, 0x41, 0x7e, 0x31, @@ -941,7 +942,7 @@ static ahc_patch_func_t ahc_patch17_func; static int ahc_patch17_func(struct ahc_softc *ahc) { - return ((ahc->flags & AHC_TMODE_WIDEODD_BUG) != 0); + return ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0); } static ahc_patch_func_t ahc_patch16_func; @@ -1142,152 +1143,152 @@ static struct patch { { ahc_patch0_func, 196, 1, 1 }, { ahc_patch9_func, 212, 6, 2 }, { ahc_patch0_func, 218, 6, 1 }, - { ahc_patch8_func, 226, 20, 2 }, + { ahc_patch8_func, 226, 21, 2 }, { ahc_patch1_func, 241, 1, 1 }, - { ahc_patch1_func, 248, 1, 2 }, - { ahc_patch0_func, 249, 2, 2 }, - { ahc_patch11_func, 250, 1, 1 }, - { ahc_patch9_func, 258, 27, 3 }, - { ahc_patch1_func, 274, 10, 2 }, - { ahc_patch13_func, 277, 1, 1 }, - { ahc_patch14_func, 285, 14, 1 }, - { ahc_patch1_func, 301, 1, 2 }, - { ahc_patch0_func, 302, 1, 1 }, - { ahc_patch9_func, 305, 1, 1 }, - { ahc_patch13_func, 310, 1, 1 }, - { ahc_patch9_func, 311, 2, 2 }, - { ahc_patch0_func, 313, 4, 1 }, - { ahc_patch14_func, 317, 1, 1 }, - { ahc_patch15_func, 319, 2, 3 }, - { ahc_patch9_func, 319, 1, 2 }, - { ahc_patch0_func, 320, 1, 1 }, - { ahc_patch6_func, 325, 1, 2 }, - { ahc_patch0_func, 326, 1, 1 }, - { ahc_patch1_func, 330, 47, 11 }, - { ahc_patch6_func, 337, 2, 4 }, - { ahc_patch7_func, 337, 1, 1 }, - { ahc_patch8_func, 338, 1, 1 }, - { ahc_patch0_func, 339, 1, 1 }, - { ahc_patch16_func, 340, 1, 1 }, - { ahc_patch6_func, 356, 6, 3 }, - { ahc_patch16_func, 356, 5, 1 }, - { ahc_patch0_func, 362, 7, 1 }, - { ahc_patch13_func, 372, 5, 1 }, - { ahc_patch0_func, 377, 52, 17 }, - { ahc_patch14_func, 377, 1, 1 }, - { ahc_patch7_func, 379, 2, 2 }, - { ahc_patch17_func, 380, 1, 1 }, - { ahc_patch9_func, 383, 1, 1 }, - { ahc_patch18_func, 390, 1, 1 }, - { ahc_patch14_func, 395, 9, 3 }, - { ahc_patch9_func, 396, 3, 2 }, - { ahc_patch0_func, 399, 3, 1 }, - { ahc_patch9_func, 407, 6, 2 }, - { ahc_patch0_func, 413, 9, 2 }, - { ahc_patch13_func, 413, 1, 1 }, - { ahc_patch13_func, 422, 2, 1 }, - { ahc_patch14_func, 424, 1, 1 }, - { ahc_patch9_func, 426, 1, 2 }, - { ahc_patch0_func, 427, 1, 1 }, - { ahc_patch7_func, 428, 1, 1 }, + { ahc_patch1_func, 249, 1, 2 }, + { ahc_patch0_func, 250, 2, 2 }, + { ahc_patch11_func, 251, 1, 1 }, + { ahc_patch9_func, 259, 27, 3 }, + { ahc_patch1_func, 275, 10, 2 }, + { ahc_patch13_func, 278, 1, 1 }, + { ahc_patch14_func, 286, 14, 1 }, + { ahc_patch1_func, 302, 1, 2 }, + { ahc_patch0_func, 303, 1, 1 }, + { ahc_patch9_func, 306, 1, 1 }, + { ahc_patch13_func, 311, 1, 1 }, + { ahc_patch9_func, 312, 2, 2 }, + { ahc_patch0_func, 314, 4, 1 }, + { ahc_patch14_func, 318, 1, 1 }, + { ahc_patch15_func, 320, 2, 3 }, + { ahc_patch9_func, 320, 1, 2 }, + { ahc_patch0_func, 321, 1, 1 }, + { ahc_patch6_func, 326, 1, 2 }, + { ahc_patch0_func, 327, 1, 1 }, + { ahc_patch1_func, 331, 47, 11 }, + { ahc_patch6_func, 338, 2, 4 }, + { ahc_patch7_func, 338, 1, 1 }, + { ahc_patch8_func, 339, 1, 1 }, + { ahc_patch0_func, 340, 1, 1 }, + { ahc_patch16_func, 341, 1, 1 }, + { ahc_patch6_func, 357, 6, 3 }, + { ahc_patch16_func, 357, 5, 1 }, + { ahc_patch0_func, 363, 7, 1 }, + { ahc_patch13_func, 373, 5, 1 }, + { ahc_patch0_func, 378, 52, 17 }, + { ahc_patch14_func, 378, 1, 1 }, + { ahc_patch7_func, 380, 2, 2 }, + { ahc_patch17_func, 381, 1, 1 }, + { ahc_patch9_func, 384, 1, 1 }, + { ahc_patch18_func, 391, 1, 1 }, + { ahc_patch14_func, 396, 9, 3 }, + { ahc_patch9_func, 397, 3, 2 }, + { ahc_patch0_func, 400, 3, 1 }, + { ahc_patch9_func, 408, 6, 2 }, + { ahc_patch0_func, 414, 9, 2 }, + { ahc_patch13_func, 414, 1, 1 }, + { ahc_patch13_func, 423, 2, 1 }, + { ahc_patch14_func, 425, 1, 1 }, + { ahc_patch9_func, 427, 1, 2 }, + { ahc_patch0_func, 428, 1, 1 }, { ahc_patch7_func, 429, 1, 1 }, - { ahc_patch8_func, 430, 3, 3 }, - { ahc_patch6_func, 431, 1, 2 }, - { ahc_patch0_func, 432, 1, 1 }, - { ahc_patch9_func, 433, 1, 1 }, - { ahc_patch15_func, 434, 1, 2 }, - { ahc_patch13_func, 434, 1, 1 }, - { ahc_patch14_func, 436, 9, 4 }, - { ahc_patch9_func, 436, 1, 1 }, - { ahc_patch9_func, 443, 2, 1 }, - { ahc_patch0_func, 445, 4, 3 }, - { ahc_patch9_func, 445, 1, 2 }, - { ahc_patch0_func, 446, 3, 1 }, - { ahc_patch1_func, 450, 2, 1 }, - { ahc_patch7_func, 452, 10, 2 }, - { ahc_patch0_func, 462, 1, 1 }, - { ahc_patch8_func, 463, 118, 22 }, - { ahc_patch1_func, 465, 3, 2 }, - { ahc_patch0_func, 468, 5, 3 }, - { ahc_patch9_func, 468, 2, 2 }, - { ahc_patch0_func, 470, 3, 1 }, - { ahc_patch1_func, 475, 2, 2 }, - { ahc_patch0_func, 477, 6, 3 }, - { ahc_patch9_func, 477, 2, 2 }, - { ahc_patch0_func, 479, 3, 1 }, - { ahc_patch1_func, 485, 2, 2 }, - { ahc_patch0_func, 487, 9, 7 }, - { ahc_patch9_func, 487, 5, 6 }, - { ahc_patch19_func, 487, 1, 2 }, - { ahc_patch0_func, 488, 1, 1 }, - { ahc_patch19_func, 490, 1, 2 }, - { ahc_patch0_func, 491, 1, 1 }, - { ahc_patch0_func, 492, 4, 1 }, - { ahc_patch6_func, 497, 3, 2 }, - { ahc_patch0_func, 500, 1, 1 }, - { ahc_patch6_func, 510, 1, 2 }, - { ahc_patch0_func, 511, 1, 1 }, - { ahc_patch20_func, 548, 7, 1 }, - { ahc_patch3_func, 583, 1, 2 }, - { ahc_patch0_func, 584, 1, 1 }, - { ahc_patch21_func, 587, 1, 1 }, - { ahc_patch8_func, 589, 106, 33 }, - { ahc_patch4_func, 591, 1, 1 }, - { ahc_patch1_func, 597, 2, 2 }, - { ahc_patch0_func, 599, 1, 1 }, - { ahc_patch1_func, 602, 1, 2 }, - { ahc_patch0_func, 603, 1, 1 }, - { ahc_patch9_func, 604, 3, 3 }, - { ahc_patch15_func, 605, 1, 1 }, - { ahc_patch0_func, 607, 4, 1 }, - { ahc_patch19_func, 616, 2, 2 }, - { ahc_patch0_func, 618, 1, 1 }, - { ahc_patch19_func, 622, 10, 3 }, - { ahc_patch5_func, 624, 8, 1 }, - { ahc_patch0_func, 632, 9, 2 }, - { ahc_patch5_func, 633, 8, 1 }, - { ahc_patch4_func, 643, 1, 2 }, - { ahc_patch0_func, 644, 1, 1 }, - { ahc_patch19_func, 645, 1, 2 }, - { ahc_patch0_func, 646, 3, 2 }, - { ahc_patch4_func, 648, 1, 1 }, - { ahc_patch5_func, 649, 1, 1 }, - { ahc_patch5_func, 652, 1, 1 }, - { ahc_patch5_func, 654, 1, 1 }, - { ahc_patch4_func, 656, 2, 2 }, - { ahc_patch0_func, 658, 2, 1 }, - { ahc_patch5_func, 660, 1, 1 }, - { ahc_patch5_func, 663, 1, 1 }, - { ahc_patch5_func, 666, 1, 1 }, - { ahc_patch19_func, 670, 1, 1 }, - { ahc_patch19_func, 673, 1, 1 }, - { ahc_patch4_func, 679, 1, 1 }, - { ahc_patch6_func, 682, 1, 2 }, - { ahc_patch0_func, 683, 1, 1 }, - { ahc_patch7_func, 695, 16, 1 }, - { ahc_patch4_func, 711, 20, 1 }, - { ahc_patch9_func, 732, 4, 2 }, - { ahc_patch0_func, 736, 4, 1 }, - { ahc_patch9_func, 740, 4, 2 }, - { ahc_patch0_func, 744, 3, 1 }, - { ahc_patch6_func, 750, 1, 1 }, - { ahc_patch22_func, 752, 14, 1 }, - { ahc_patch7_func, 766, 3, 1 }, - { ahc_patch9_func, 778, 24, 8 }, - { ahc_patch19_func, 782, 1, 2 }, - { ahc_patch0_func, 783, 1, 1 }, - { ahc_patch15_func, 788, 4, 2 }, - { ahc_patch0_func, 792, 7, 3 }, - { ahc_patch23_func, 792, 5, 2 }, - { ahc_patch0_func, 797, 2, 1 }, - { ahc_patch0_func, 802, 42, 3 }, - { ahc_patch18_func, 814, 18, 2 }, - { ahc_patch0_func, 832, 1, 1 }, - { ahc_patch4_func, 856, 1, 1 }, - { ahc_patch4_func, 857, 3, 2 }, - { ahc_patch0_func, 860, 1, 1 }, - { ahc_patch13_func, 861, 3, 1 }, - { ahc_patch4_func, 864, 12, 1 } + { ahc_patch7_func, 430, 1, 1 }, + { ahc_patch8_func, 431, 3, 3 }, + { ahc_patch6_func, 432, 1, 2 }, + { ahc_patch0_func, 433, 1, 1 }, + { ahc_patch9_func, 434, 1, 1 }, + { ahc_patch15_func, 435, 1, 2 }, + { ahc_patch13_func, 435, 1, 1 }, + { ahc_patch14_func, 437, 9, 4 }, + { ahc_patch9_func, 437, 1, 1 }, + { ahc_patch9_func, 444, 2, 1 }, + { ahc_patch0_func, 446, 4, 3 }, + { ahc_patch9_func, 446, 1, 2 }, + { ahc_patch0_func, 447, 3, 1 }, + { ahc_patch1_func, 451, 2, 1 }, + { ahc_patch7_func, 453, 10, 2 }, + { ahc_patch0_func, 463, 1, 1 }, + { ahc_patch8_func, 464, 118, 22 }, + { ahc_patch1_func, 466, 3, 2 }, + { ahc_patch0_func, 469, 5, 3 }, + { ahc_patch9_func, 469, 2, 2 }, + { ahc_patch0_func, 471, 3, 1 }, + { ahc_patch1_func, 476, 2, 2 }, + { ahc_patch0_func, 478, 6, 3 }, + { ahc_patch9_func, 478, 2, 2 }, + { ahc_patch0_func, 480, 3, 1 }, + { ahc_patch1_func, 486, 2, 2 }, + { ahc_patch0_func, 488, 9, 7 }, + { ahc_patch9_func, 488, 5, 6 }, + { ahc_patch19_func, 488, 1, 2 }, + { ahc_patch0_func, 489, 1, 1 }, + { ahc_patch19_func, 491, 1, 2 }, + { ahc_patch0_func, 492, 1, 1 }, + { ahc_patch0_func, 493, 4, 1 }, + { ahc_patch6_func, 498, 3, 2 }, + { ahc_patch0_func, 501, 1, 1 }, + { ahc_patch6_func, 511, 1, 2 }, + { ahc_patch0_func, 512, 1, 1 }, + { ahc_patch20_func, 549, 7, 1 }, + { ahc_patch3_func, 584, 1, 2 }, + { ahc_patch0_func, 585, 1, 1 }, + { ahc_patch21_func, 588, 1, 1 }, + { ahc_patch8_func, 590, 106, 33 }, + { ahc_patch4_func, 592, 1, 1 }, + { ahc_patch1_func, 598, 2, 2 }, + { ahc_patch0_func, 600, 1, 1 }, + { ahc_patch1_func, 603, 1, 2 }, + { ahc_patch0_func, 604, 1, 1 }, + { ahc_patch9_func, 605, 3, 3 }, + { ahc_patch15_func, 606, 1, 1 }, + { ahc_patch0_func, 608, 4, 1 }, + { ahc_patch19_func, 617, 2, 2 }, + { ahc_patch0_func, 619, 1, 1 }, + { ahc_patch19_func, 623, 10, 3 }, + { ahc_patch5_func, 625, 8, 1 }, + { ahc_patch0_func, 633, 9, 2 }, + { ahc_patch5_func, 634, 8, 1 }, + { ahc_patch4_func, 644, 1, 2 }, + { ahc_patch0_func, 645, 1, 1 }, + { ahc_patch19_func, 646, 1, 2 }, + { ahc_patch0_func, 647, 3, 2 }, + { ahc_patch4_func, 649, 1, 1 }, + { ahc_patch5_func, 650, 1, 1 }, + { ahc_patch5_func, 653, 1, 1 }, + { ahc_patch5_func, 655, 1, 1 }, + { ahc_patch4_func, 657, 2, 2 }, + { ahc_patch0_func, 659, 2, 1 }, + { ahc_patch5_func, 661, 1, 1 }, + { ahc_patch5_func, 664, 1, 1 }, + { ahc_patch5_func, 667, 1, 1 }, + { ahc_patch19_func, 671, 1, 1 }, + { ahc_patch19_func, 674, 1, 1 }, + { ahc_patch4_func, 680, 1, 1 }, + { ahc_patch6_func, 683, 1, 2 }, + { ahc_patch0_func, 684, 1, 1 }, + { ahc_patch7_func, 696, 16, 1 }, + { ahc_patch4_func, 712, 20, 1 }, + { ahc_patch9_func, 733, 4, 2 }, + { ahc_patch0_func, 737, 4, 1 }, + { ahc_patch9_func, 741, 4, 2 }, + { ahc_patch0_func, 745, 3, 1 }, + { ahc_patch6_func, 751, 1, 1 }, + { ahc_patch22_func, 753, 14, 1 }, + { ahc_patch7_func, 767, 3, 1 }, + { ahc_patch9_func, 779, 24, 8 }, + { ahc_patch19_func, 783, 1, 2 }, + { ahc_patch0_func, 784, 1, 1 }, + { ahc_patch15_func, 789, 4, 2 }, + { ahc_patch0_func, 793, 7, 3 }, + { ahc_patch23_func, 793, 5, 2 }, + { ahc_patch0_func, 798, 2, 1 }, + { ahc_patch0_func, 803, 42, 3 }, + { ahc_patch18_func, 815, 18, 2 }, + { ahc_patch0_func, 833, 1, 1 }, + { ahc_patch4_func, 857, 1, 1 }, + { ahc_patch4_func, 858, 3, 2 }, + { ahc_patch0_func, 861, 1, 1 }, + { ahc_patch13_func, 862, 3, 1 }, + { ahc_patch4_func, 865, 12, 1 } }; static struct cs { @@ -1296,11 +1297,11 @@ static struct cs { } critical_sections[] = { { 11, 18 }, { 21, 30 }, - { 711, 727 }, - { 857, 860 }, - { 864, 870 }, - { 872, 874 }, - { 874, 876 } + { 712, 728 }, + { 858, 861 }, + { 865, 871 }, + { 873, 875 }, + { 875, 877 } }; static const int num_critical_sections = sizeof(critical_sections) -- cgit v1.2.3-70-g09d2 From 78f81cc4355c31c798564ff7efb253cc4cdce6c0 Mon Sep 17 00:00:00 2001 From: Borislav Deianov <borislav@users.sf.net> Date: Wed, 17 Aug 2005 00:00:00 -0400 Subject: [ACPI] IBM ThinkPad ACPI Extras Driver v0.12 http://ibm-acpi.sf.net/ Signed-off-by: Borislav Deianov <borislav@users.sf.net> Signed-off-by: Len Brown <len.brown@intel.com> --- Documentation/ibm-acpi.txt | 376 ++++++++--- drivers/acpi/ibm_acpi.c | 1598 ++++++++++++++++++++++++++++++++------------ 2 files changed, 1442 insertions(+), 532 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ibm-acpi.txt b/Documentation/ibm-acpi.txt index c437b1aeff5..8b3fd82b2ce 100644 --- a/Documentation/ibm-acpi.txt +++ b/Documentation/ibm-acpi.txt @@ -1,16 +1,16 @@ IBM ThinkPad ACPI Extras Driver - Version 0.8 - 8 November 2004 + Version 0.12 + 17 August 2005 Borislav Deianov <borislav@users.sf.net> http://ibm-acpi.sf.net/ -This is a Linux ACPI driver for the IBM ThinkPad laptops. It aims to -support various features of these laptops which are accessible through -the ACPI framework but not otherwise supported by the generic Linux -ACPI drivers. +This is a Linux ACPI driver for the IBM ThinkPad laptops. It supports +various features of these laptops which are accessible through the +ACPI framework but not otherwise supported by the generic Linux ACPI +drivers. Status @@ -25,9 +25,14 @@ detailed description): - ThinkLight on and off - limited docking and undocking - UltraBay eject - - Experimental: CMOS control - - Experimental: LED control - - Experimental: ACPI sounds + - CMOS control + - LED control + - ACPI sounds + - temperature sensors + - Experimental: embedded controller register dump + - Experimental: LCD brightness control + - Experimental: volume control + - Experimental: fan speed, fan enable/disable A compatibility table by model and feature is maintained on the web site, http://ibm-acpi.sf.net/. I appreciate any success or failure @@ -91,12 +96,12 @@ driver is still in the alpha stage, the exact proc file format and commands supported by the various features is guaranteed to change frequently. -Driver Version -- /proc/acpi/ibm/driver --------------------------------------- +Driver version -- /proc/acpi/ibm/driver +--------------------------------------- The driver name and version. No commands can be written to this file. -Hot Keys -- /proc/acpi/ibm/hotkey +Hot keys -- /proc/acpi/ibm/hotkey --------------------------------- Without this driver, only the Fn-F4 key (sleep button) generates an @@ -188,7 +193,7 @@ and, on the X40, video corruption. By disabling automatic switching, the flickering or video corruption can be avoided. The video_switch command cycles through the available video outputs -(it sumulates the behavior of Fn-F7). +(it simulates the behavior of Fn-F7). Video expansion can be toggled through this feature. This controls whether the display is expanded to fill the entire LCD screen when a @@ -201,6 +206,12 @@ Fn-F7 from working. This also disables the video output switching features of this driver, as it uses the same ACPI methods as Fn-F7. Video switching on the console should still work. +UPDATE: There's now a patch for the X.org Radeon driver which +addresses this issue. Some people are reporting success with the patch +while others are still having problems. For more information: + +https://bugs.freedesktop.org/show_bug.cgi?id=2000 + ThinkLight control -- /proc/acpi/ibm/light ------------------------------------------ @@ -211,7 +222,7 @@ models which do not make the status available will show it as echo on > /proc/acpi/ibm/light echo off > /proc/acpi/ibm/light -Docking / Undocking -- /proc/acpi/ibm/dock +Docking / undocking -- /proc/acpi/ibm/dock ------------------------------------------ Docking and undocking (e.g. with the X4 UltraBase) requires some @@ -228,11 +239,15 @@ NOTE: These events will only be generated if the laptop was docked when originally booted. This is due to the current lack of support for hot plugging of devices in the Linux ACPI framework. If the laptop was booted while not in the dock, the following message is shown in the -logs: "ibm_acpi: dock device not present". No dock-related events are -generated but the dock and undock commands described below still -work. They can be executed manually or triggered by Fn key -combinations (see the example acpid configuration files included in -the driver tarball package available on the web site). +logs: + + Mar 17 01:42:34 aero kernel: ibm_acpi: dock device not present + +In this case, no dock-related events are generated but the dock and +undock commands described below still work. They can be executed +manually or triggered by Fn key combinations (see the example acpid +configuration files included in the driver tarball package available +on the web site). When the eject request button on the dock is pressed, the first event above is generated. The handler for this event should issue the @@ -267,7 +282,7 @@ the only docking stations currently supported are the X-series UltraBase docks and "dumb" port replicators like the Mini Dock (the latter don't need any ACPI support, actually). -UltraBay Eject -- /proc/acpi/ibm/bay +UltraBay eject -- /proc/acpi/ibm/bay ------------------------------------ Inserting or ejecting an UltraBay device requires some actions to be @@ -284,8 +299,11 @@ when the laptop was originally booted (on the X series, the UltraBay is in the dock, so it may not be present if the laptop was undocked). This is due to the current lack of support for hot plugging of devices in the Linux ACPI framework. If the laptop was booted without the -UltraBay, the following message is shown in the logs: "ibm_acpi: bay -device not present". No bay-related events are generated but the eject +UltraBay, the following message is shown in the logs: + + Mar 17 01:42:34 aero kernel: ibm_acpi: bay device not present + +In this case, no bay-related events are generated but the eject command described below still works. It can be executed manually or triggered by a hot key combination. @@ -306,22 +324,33 @@ necessary to enable the UltraBay device (e.g. call idectl). The contents of the /proc/acpi/ibm/bay file shows the current status of the UltraBay, as provided by the ACPI framework. -Experimental Features ---------------------- +EXPERIMENTAL warm eject support on the 600e/x, A22p and A3x (To use +this feature, you need to supply the experimental=1 parameter when +loading the module): + +These models do not have a button near the UltraBay device to request +a hot eject but rather require the laptop to be put to sleep +(suspend-to-ram) before the bay device is ejected or inserted). +The sequence of steps to eject the device is as follows: + + echo eject > /proc/acpi/ibm/bay + put the ThinkPad to sleep + remove the drive + resume from sleep + cat /proc/acpi/ibm/bay should show that the drive was removed + +On the A3x, both the UltraBay 2000 and UltraBay Plus devices are +supported. Use "eject2" instead of "eject" for the second bay. -The following features are marked experimental because using them -involves guessing the correct values of some parameters. Guessing -incorrectly may have undesirable effects like crashing your -ThinkPad. USE THESE WITH CAUTION! To activate them, you'll need to -supply the experimental=1 parameter when loading the module. +Note: the UltraBay eject support on the 600e/x, A22p and A3x is +EXPERIMENTAL and may not work as expected. USE WITH CAUTION! -Experimental: CMOS control - /proc/acpi/ibm/cmos ------------------------------------------------- +CMOS control -- /proc/acpi/ibm/cmos +----------------------------------- This feature is used internally by the ACPI firmware to control the -ThinkLight on most newer ThinkPad models. It appears that it can also -control LCD brightness, sounds volume and more, but only on some -models. +ThinkLight on most newer ThinkPad models. It may also control LCD +brightness, sounds volume and more, but only on some models. The commands are non-negative integer numbers: @@ -330,10 +359,9 @@ The commands are non-negative integer numbers: echo 2 >/proc/acpi/ibm/cmos ... -The range of numbers which are used internally by various models is 0 -to 21, but it's possible that numbers outside this range have -interesting behavior. Here is the behavior on the X40 (tpb is the -ThinkPad Buttons utility): +The range of valid numbers is 0 to 21, but not all have an effect and +the behavior varies from model to model. Here is the behavior on the +X40 (tpb is the ThinkPad Buttons utility): 0 - no effect but tpb reports "Volume down" 1 - no effect but tpb reports "Volume up" @@ -346,26 +374,18 @@ ThinkPad Buttons utility): 13 - ThinkLight off 14 - no effect but tpb reports ThinkLight status change -If you try this feature, please send me a report similar to the -above. On models which allow control of LCD brightness or sound -volume, I'd like to provide this functionality in an user-friendly -way, but first I need a way to identify the models which this is -possible. - -Experimental: LED control - /proc/acpi/ibm/LED ----------------------------------------------- +LED control -- /proc/acpi/ibm/led +--------------------------------- Some of the LED indicators can be controlled through this feature. The available commands are: - echo <led number> on >/proc/acpi/ibm/led - echo <led number> off >/proc/acpi/ibm/led - echo <led number> blink >/proc/acpi/ibm/led + echo '<led number> on' >/proc/acpi/ibm/led + echo '<led number> off' >/proc/acpi/ibm/led + echo '<led number> blink' >/proc/acpi/ibm/led -The <led number> parameter is a non-negative integer. The range of LED -numbers used internally by various models is 0 to 7 but it's possible -that numbers outside this range are also valid. Here is the mapping on -the X40: +The <led number> range is 0 to 7. The set of LEDs that can be +controlled varies from model to model. Here is the mapping on the X40: 0 - power 1 - battery (orange) @@ -376,49 +396,224 @@ the X40: All of the above can be turned on and off and can be made to blink. -If you try this feature, please send me a report similar to the -above. I'd like to provide this functionality in an user-friendly way, -but first I need to identify the which numbers correspond to which -LEDs on various models. - -Experimental: ACPI sounds - /proc/acpi/ibm/beep ------------------------------------------------ +ACPI sounds -- /proc/acpi/ibm/beep +---------------------------------- The BEEP method is used internally by the ACPI firmware to provide -audible alerts in various situtation. This feature allows the same +audible alerts in various situations. This feature allows the same sounds to be triggered manually. The commands are non-negative integer numbers: - echo 0 >/proc/acpi/ibm/beep - echo 1 >/proc/acpi/ibm/beep - echo 2 >/proc/acpi/ibm/beep - ... + echo <number> >/proc/acpi/ibm/beep -The range of numbers which are used internally by various models is 0 -to 17, but it's possible that numbers outside this range are also -valid. Here is the behavior on the X40: +The valid <number> range is 0 to 17. Not all numbers trigger sounds +and the sounds vary from model to model. Here is the behavior on the +X40: - 2 - two beeps, pause, third beep + 0 - stop a sound in progress (but use 17 to stop 16) + 2 - two beeps, pause, third beep ("low battery") 3 - single beep - 4 - "unable" + 4 - high, followed by low-pitched beep ("unable") 5 - single beep - 6 - "AC/DC" + 6 - very high, followed by high-pitched beep ("AC/DC") 7 - high-pitched beep 9 - three short beeps 10 - very long beep 12 - low-pitched beep + 15 - three high-pitched beeps repeating constantly, stop with 0 + 16 - one medium-pitched beep repeating constantly, stop with 17 + 17 - stop 16 + +Temperature sensors -- /proc/acpi/ibm/thermal +--------------------------------------------- + +Most ThinkPads include six or more separate temperature sensors but +only expose the CPU temperature through the standard ACPI methods. +This feature shows readings from up to eight different sensors. Some +readings may not be valid, e.g. may show large negative values. For +example, on the X40, a typical output may be: + +temperatures: 42 42 45 41 36 -128 33 -128 + +Thomas Gruber took his R51 apart and traced all six active sensors in +his laptop (the location of sensors may vary on other models): + +1: CPU +2: Mini PCI Module +3: HDD +4: GPU +5: Battery +6: N/A +7: Battery +8: N/A + +No commands can be written to this file. + +EXPERIMENTAL: Embedded controller reigster dump -- /proc/acpi/ibm/ecdump +------------------------------------------------------------------------ + +This feature is marked EXPERIMENTAL because the implementation +directly accesses hardware registers and may not work as expected. USE +WITH CAUTION! To use this feature, you need to supply the +experimental=1 parameter when loading the module. + +This feature dumps the values of 256 embedded controller +registers. Values which have changed since the last time the registers +were dumped are marked with a star: + +[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump +EC +00 +01 +02 +03 +04 +05 +06 +07 +08 +09 +0a +0b +0c +0d +0e +0f +EC 0x00: a7 47 87 01 fe 96 00 08 01 00 cb 00 00 00 40 00 +EC 0x10: 00 00 ff ff f4 3c 87 09 01 ff 42 01 ff ff 0d 00 +EC 0x20: 00 00 00 00 00 00 00 00 00 00 00 03 43 00 00 80 +EC 0x30: 01 07 1a 00 30 04 00 00 *85 00 00 10 00 50 00 00 +EC 0x40: 00 00 00 00 00 00 14 01 00 04 00 00 00 00 00 00 +EC 0x50: 00 c0 02 0d 00 01 01 02 02 03 03 03 03 *bc *02 *bc +EC 0x60: *02 *bc *02 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0x70: 00 00 00 00 00 12 30 40 *24 *26 *2c *27 *20 80 *1f 80 +EC 0x80: 00 00 00 06 *37 *0e 03 00 00 00 0e 07 00 00 00 00 +EC 0x90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xa0: *ff 09 ff 09 ff ff *64 00 *00 *00 *a2 41 *ff *ff *e0 00 +EC 0xb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xd0: 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xe0: 00 00 00 00 00 00 00 00 11 20 49 04 24 06 55 03 +EC 0xf0: 31 55 48 54 35 38 57 57 08 2f 45 73 07 65 6c 1a + +This feature can be used to determine the register holding the fan +speed on some models. To do that, do the following: + + - make sure the battery is fully charged + - make sure the fan is running + - run 'cat /proc/acpi/ibm/ecdump' several times, once per second or so + +The first step makes sure various charging-related values don't +vary. The second ensures that the fan-related values do vary, since +the fan speed fluctuates a bit. The third will (hopefully) mark the +fan register with a star: + +[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump +EC +00 +01 +02 +03 +04 +05 +06 +07 +08 +09 +0a +0b +0c +0d +0e +0f +EC 0x00: a7 47 87 01 fe 96 00 08 01 00 cb 00 00 00 40 00 +EC 0x10: 00 00 ff ff f4 3c 87 09 01 ff 42 01 ff ff 0d 00 +EC 0x20: 00 00 00 00 00 00 00 00 00 00 00 03 43 00 00 80 +EC 0x30: 01 07 1a 00 30 04 00 00 85 00 00 10 00 50 00 00 +EC 0x40: 00 00 00 00 00 00 14 01 00 04 00 00 00 00 00 00 +EC 0x50: 00 c0 02 0d 00 01 01 02 02 03 03 03 03 bc 02 bc +EC 0x60: 02 bc 02 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0x70: 00 00 00 00 00 12 30 40 24 27 2c 27 21 80 1f 80 +EC 0x80: 00 00 00 06 *be 0d 03 00 00 00 0e 07 00 00 00 00 +EC 0x90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xa0: ff 09 ff 09 ff ff 64 00 00 00 a2 41 ff ff e0 00 +EC 0xb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xd0: 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +EC 0xe0: 00 00 00 00 00 00 00 00 11 20 49 04 24 06 55 03 +EC 0xf0: 31 55 48 54 35 38 57 57 08 2f 45 73 07 65 6c 1a + +Another set of values that varies often is the temperature +readings. Since temperatures don't change vary fast, you can take +several quick dumps to eliminate them. + +You can use a similar method to figure out the meaning of other +embedded controller registers - e.g. make sure nothing else changes +except the charging or discharging battery to determine which +registers contain the current battery capacity, etc. If you experiment +with this, do send me your results (including some complete dumps with +a description of the conditions when they were taken.) + +EXPERIMENTAL: LCD brightness control -- /proc/acpi/ibm/brightness +----------------------------------------------------------------- + +This feature is marked EXPERIMENTAL because the implementation +directly accesses hardware registers and may not work as expected. USE +WITH CAUTION! To use this feature, you need to supply the +experimental=1 parameter when loading the module. + +This feature allows software control of the LCD brightness on ThinkPad +models which don't have a hardware brightness slider. The available +commands are: + + echo up >/proc/acpi/ibm/brightness + echo down >/proc/acpi/ibm/brightness + echo 'level <level>' >/proc/acpi/ibm/brightness + +The <level> number range is 0 to 7, although not all of them may be +distinct. The current brightness level is shown in the file. + +EXPERIMENTAL: Volume control -- /proc/acpi/ibm/volume +----------------------------------------------------- + +This feature is marked EXPERIMENTAL because the implementation +directly accesses hardware registers and may not work as expected. USE +WITH CAUTION! To use this feature, you need to supply the +experimental=1 parameter when loading the module. + +This feature allows volume control on ThinkPad models which don't have +a hardware volume knob. The available commands are: + + echo up >/proc/acpi/ibm/volume + echo down >/proc/acpi/ibm/volume + echo mute >/proc/acpi/ibm/volume + echo 'level <level>' >/proc/acpi/ibm/volume + +The <level> number range is 0 to 15 although not all of them may be +distinct. The unmute the volume after the mute command, use either the +up or down command (the level command will not unmute the volume). +The current volume level and mute state is shown in the file. + +EXPERIMENTAL: fan speed, fan enable/disable -- /proc/acpi/ibm/fan +----------------------------------------------------------------- + +This feature is marked EXPERIMENTAL because the implementation +directly accesses hardware registers and may not work as expected. USE +WITH CAUTION! To use this feature, you need to supply the +experimental=1 parameter when loading the module. + +This feature attempts to show the current fan speed. The speed is read +directly from the hardware registers of the embedded controller. This +is known to work on later R, T and X series ThinkPads but may show a +bogus value on other models. + +The fan may be enabled or disabled with the following commands: + + echo enable >/proc/acpi/ibm/fan + echo disable >/proc/acpi/ibm/fan + +WARNING WARNING WARNING: do not leave the fan disabled unless you are +monitoring the temperature sensor readings and you are ready to enable +it if necessary to avoid overheating. + +The fan only runs if it's enabled *and* the various temperature +sensors which control it read high enough. On the X40, this seems to +depend on the CPU and HDD temperatures. Specifically, the fan is +turned on when either the CPU temperature climbs to 56 degrees or the +HDD temperature climbs to 46 degrees. The fan is turned off when the +CPU temperature drops to 49 degrees and the HDD temperature drops to +41 degrees. These thresholds cannot currently be controlled. + +On the X31 and X40 (and ONLY on those models), the fan speed can be +controlled to a certain degree. Once the fan is running, it can be +forced to run faster or slower with the following command: + + echo 'speed <speed>' > /proc/acpi/ibm/thermal + +The sustainable range of fan speeds on the X40 appears to be from +about 3700 to about 7350. Values outside this range either do not have +any effect or the fan speed eventually settles somewhere in that +range. The fan cannot be stopped or started with this command. + +On the 570, temperature readings are not available through this +feature and the fan control works a little differently. The fan speed +is reported in levels from 0 (off) to 7 (max) and can be controlled +with the following command: -(I've only been able to identify a couple of them). - -If you try this feature, please send me a report similar to the -above. I'd like to provide this functionality in an user-friendly way, -but first I need to identify the which numbers correspond to which -sounds on various models. + echo 'level <level>' > /proc/acpi/ibm/thermal -Multiple Command, Module Parameters ------------------------------------ +Multiple Commands, Module Parameters +------------------------------------ Multiple commands can be written to the proc files in one shot by separating them with commas, for example: @@ -451,24 +646,19 @@ scripts (included with ibm-acpi for completeness): /usr/local/sbin/laptop_mode -- from the Linux kernel source distribution, see Documentation/laptop-mode.txt /sbin/service -- comes with Redhat/Fedora distributions + /usr/sbin/hibernate -- from the Software Suspend 2 distribution, + see http://softwaresuspend.berlios.de/ -Toan T Nguyen <ntt@control.uchicago.edu> has written a SuSE powersave -script for the X20, included in config/usr/sbin/ibm_hotkeys_X20 +Toan T Nguyen <ntt@physics.ucla.edu> notes that Suse uses the +powersave program to suspend ('powersave --suspend-to-ram') or +hibernate ('powersave --suspend-to-disk'). This means that the +hibernate script is not needed on that distribution. Henrik Brix Andersen <brix@gentoo.org> has written a Gentoo ACPI event handler script for the X31. You can get the latest version from http://dev.gentoo.org/~brix/files/x31.sh David Schweikert <dws@ee.eth.ch> has written an alternative blank.sh -script which works on Debian systems, included in -configs/etc/acpi/actions/blank-debian.sh - - -TODO ----- - -I'd like to implement the following features but haven't yet found the -time and/or I don't yet know how to implement them: - -- UltraBay floppy drive support - +script which works on Debian systems. This scripts has now been +extended to also work on Fedora systems and included as the default +blank.sh in the distribution. diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index ad85e10001f..5cc090326dd 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -2,7 +2,7 @@ * ibm_acpi.c - IBM ThinkPad ACPI Extras * * - * Copyright (C) 2004 Borislav Deianov + * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -17,38 +17,62 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * + */ + +#define IBM_VERSION "0.12a" + +/* * Changelog: - * - * 2004-08-09 0.1 initial release, support for X series - * 2004-08-14 0.2 support for T series, X20 - * bluetooth enable/disable - * hotkey events disabled by default - * removed fan control, currently useless - * 2004-08-17 0.3 support for R40 - * lcd off, brightness control - * thinklight on/off - * 2004-09-16 0.4 support for module parameters - * hotkey mask can be prefixed by 0x - * video output switching - * video expansion control - * ultrabay eject support - * removed lcd brightness/on/off control, didn't work + * + * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels + * 2005-03-17 0.11 support for 600e, 770x + * thanks to Jamie Lentin <lentinj@dial.pipex.com> + * support for 770e, G41 + * G40 and G41 don't have a thinklight + * temperatures no longer experimental + * experimental brightness control + * experimental volume control + * experimental fan enable/disable + * 2005-01-16 0.10 fix module loading on R30, R31 + * 2005-01-16 0.9 support for 570, R30, R31 + * ultrabay support on A22p, A3x + * limit arg for cmos, led, beep, drop experimental status + * more capable led control on A21e, A22p, T20-22, X20 + * experimental temperatures and fan speed + * experimental embedded controller register dump + * mark more functions as __init, drop incorrect __exit + * use MODULE_VERSION + * thanks to Henrik Brix Andersen <brix@gentoo.org> + * fix parameter passing on module loading + * thanks to Rusty Russell <rusty@rustcorp.com.au> + * thanks to Jim Radford <radford@blackbean.org> + * 2004-11-08 0.8 fix init error case, don't return from a macro + * thanks to Chris Wright <chrisw@osdl.org> + * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 + * fix led control on A21e + * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 * proc file format changed * video_switch command * experimental cmos control * experimental led control * experimental acpi sounds - * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device - * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 - * fix LED control on A21e - * 2004-11-08 0.8 fix init error case, don't return from a macro - * thanks to Chris Wright <chrisw@osdl.org> + * 2004-09-16 0.4 support for module parameters + * hotkey mask can be prefixed by 0x + * video output switching + * video expansion control + * ultrabay eject support + * removed lcd brightness/on/off control, didn't work + * 2004-08-17 0.3 support for R40 + * lcd off, brightness control + * thinklight on/off + * 2004-08-14 0.2 support for T series, X20 + * bluetooth enable/disable + * hotkey events disabled by default + * removed fan control, currently useless + * 2004-08-09 0.1 initial release, support for X series */ -#define IBM_VERSION "0.8" - #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -64,6 +88,11 @@ #define IBM_FILE "ibm_acpi" #define IBM_URL "http://ibm-acpi.sf.net/" +MODULE_AUTHOR("Borislav Deianov"); +MODULE_DESCRIPTION(IBM_DESC); +MODULE_VERSION(IBM_VERSION); +MODULE_LICENSE("GPL"); + #define IBM_DIR IBM_NAME #define IBM_LOG IBM_FILE ": " @@ -84,54 +113,122 @@ static acpi_handle root_handle = NULL; #define IBM_HANDLE(object, parent, paths...) \ static acpi_handle object##_handle; \ static acpi_handle *object##_parent = &parent##_handle; \ + static char *object##_path; \ static char *object##_paths[] = { paths } -IBM_HANDLE(ec, root, - "\\_SB.PCI0.ISA.EC", /* A21e, A22p, T20, T21, X20 */ - "\\_SB.PCI0.LPC.EC", /* all others */ -); - -IBM_HANDLE(vid, root, - "\\_SB.PCI0.VID", /* A21e, G40, X30, X40 */ - "\\_SB.PCI0.AGP.VID", /* all others */ -); - -IBM_HANDLE(cmos, root, - "\\UCMS", /* R50, R50p, R51, T4x, X31, X40 */ - "\\CMOS", /* A3x, G40, R32, T23, T30, X22, X24, X30 */ - "\\CMS", /* R40, R40e */ -); /* A21e, A22p, T20, T21, X20 */ - -IBM_HANDLE(dock, root, - "\\_SB.GDCK", /* X30, X31, X40 */ - "\\_SB.PCI0.DOCK", /* A22p, T20, T21, X20 */ - "\\_SB.PCI0.PCI1.DOCK", /* all others */ -); /* A21e, G40, R32, R40, R40e */ - -IBM_HANDLE(bay, root, - "\\_SB.PCI0.IDE0.SCND.MSTR"); /* all except A21e */ -IBM_HANDLE(bayej, root, - "\\_SB.PCI0.IDE0.SCND.MSTR._EJ0"); /* all except A2x, A3x */ - -IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A22p, T20, T21, X20 */ -IBM_HANDLE(hkey, ec, "HKEY"); /* all */ -IBM_HANDLE(led, ec, "LED"); /* all except A21e, A22p, T20, T21, X20 */ -IBM_HANDLE(sysl, ec, "SYSL"); /* A21e, A22p, T20, T21, X20 */ -IBM_HANDLE(bled, ec, "BLED"); /* A22p, T20, T21, X20 */ -IBM_HANDLE(beep, ec, "BEEP"); /* all models */ +/* + * The following models are supported to various degrees: + * + * 570, 600e, 600x, 770e, 770x + * A20m, A21e, A21m, A21p, A22p, A30, A30p, A31, A31p + * G40, G41 + * R30, R31, R32, R40, R40e, R50, R50e, R50p, R51 + * T20, T21, T22, T23, T30, T40, T40p, T41, T41p, T42, T42p, T43 + * X20, X21, X22, X23, X24, X30, X31, X40 + * + * The following models have no supported features: + * + * 240, 240x, i1400 + * + * Still missing DSDTs for the following models: + * + * A20p, A22e, A22m + * R52 + * S31 + * T43p + */ + +IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ + "\\_SB.PCI.ISA.EC", /* 570 */ + "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ + "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ + "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ + "\\_SB.PCI0.ICH3.EC0", /* R31 */ + "\\_SB.PCI0.LPC.EC", /* all others */ + ); + +IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ + "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ + "\\_SB.PCI0.VID0", /* 770e */ + "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ + "\\_SB.PCI0.AGP.VID", /* all others */ + ); /* R30, R31 */ + +IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ + +IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ + "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ + "\\CMS", /* R40, R40e */ + ); /* all others */ + +IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ + "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ + "\\_SB.PCI0.PCI1.DOCK", /* all others */ + "\\_SB.PCI.ISA.SLCE", /* 570 */ + ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ + +IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ + "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ + "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ + ); /* A21e, R30, R31 */ + +IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ + "_EJ0", /* all others */ + ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ + +IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ + "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ + ); /* all others */ + +IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ + "_EJ0", /* 770x */ + ); /* all others */ + +/* don't list other alternatives as we install a notify handler on the 570 */ +IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ + +IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ + "^HKEY", /* R30, R31 */ + "HKEY", /* all others */ + ); /* 570 */ + +IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ +IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ + +IBM_HANDLE(led, ec, "SLED", /* 570 */ + "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ + "LED", /* all others */ + ); /* R30, R31 */ + +IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ +IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ +IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ +IBM_HANDLE(fans, ec, "FANS"); /* X31, X40 */ + +IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ + "\\FSPD", /* 600e/x, 770e, 770x */ + ); /* all others */ + +IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ + "JFNS", /* 770x-JL */ + ); /* all others */ + +#define IBM_HKEY_HID "IBM0068" +#define IBM_PCI_HID "PNP0A03" struct ibm_struct { char *name; + char param[32]; char *hid; struct acpi_driver *driver; - - int (*init) (struct ibm_struct *); - int (*read) (struct ibm_struct *, char *); - int (*write) (struct ibm_struct *, char *); - void (*exit) (struct ibm_struct *); - void (*notify) (struct ibm_struct *, u32); + int (*init) (void); + int (*read) (char *); + int (*write) (char *); + void (*exit) (void); + + void (*notify) (struct ibm_struct *, u32); acpi_handle *handle; int type; struct acpi_device *device; @@ -141,17 +238,6 @@ struct ibm_struct { int init_called; int notify_installed; - int supported; - union { - struct { - int status; - int mask; - } hotkey; - struct { - int autoswitch; - } video; - } state; - int experimental; }; @@ -165,15 +251,15 @@ static int acpi_evalf(acpi_handle handle, void *res, char *method, char *fmt, ...) { char *fmt0 = fmt; - struct acpi_object_list params; - union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; - struct acpi_buffer result; - union acpi_object out_obj; - acpi_status status; - va_list ap; - char res_type; - int success; - int quiet; + struct acpi_object_list params; + union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; + struct acpi_buffer result, *resultp; + union acpi_object out_obj; + acpi_status status; + va_list ap; + char res_type; + int success; + int quiet; if (!*fmt) { printk(IBM_ERR "acpi_evalf() called with empty format\n"); @@ -199,7 +285,7 @@ static int acpi_evalf(acpi_handle handle, in_objs[params.count].integer.value = va_arg(ap, int); in_objs[params.count++].type = ACPI_TYPE_INTEGER; break; - /* add more types as needed */ + /* add more types as needed */ default: printk(IBM_ERR "acpi_evalf() called " "with invalid format character '%c'\n", c); @@ -208,21 +294,25 @@ static int acpi_evalf(acpi_handle handle, } va_end(ap); - result.length = sizeof(out_obj); - result.pointer = &out_obj; + if (res_type != 'v') { + result.length = sizeof(out_obj); + result.pointer = &out_obj; + resultp = &result; + } else + resultp = NULL; - status = acpi_evaluate_object(handle, method, ¶ms, &result); + status = acpi_evaluate_object(handle, method, ¶ms, resultp); switch (res_type) { - case 'd': /* int */ + case 'd': /* int */ if (res) *(int *)res = out_obj.integer.value; success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; break; - case 'v': /* void */ + case 'v': /* void */ success = status == AE_OK; break; - /* add more types as needed */ + /* add more types as needed */ default: printk(IBM_ERR "acpi_evalf() called " "with invalid format character '%c'\n", res_type); @@ -262,7 +352,7 @@ static char *next_cmd(char **cmds) return start; } -static int driver_init(struct ibm_struct *ibm) +static int driver_init(void) { printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); printk(IBM_INFO "%s\n", IBM_URL); @@ -270,7 +360,7 @@ static int driver_init(struct ibm_struct *ibm) return 0; } -static int driver_read(struct ibm_struct *ibm, char *p) +static int driver_read(char *p) { int len = 0; @@ -280,67 +370,74 @@ static int driver_read(struct ibm_struct *ibm, char *p) return len; } -static int hotkey_get(struct ibm_struct *ibm, int *status, int *mask) +static int hotkey_supported; +static int hotkey_mask_supported; +static int hotkey_orig_status; +static int hotkey_orig_mask; + +static int hotkey_get(int *status, int *mask) { if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) - return -EIO; - if (ibm->supported) { - if (!acpi_evalf(hkey_handle, mask, "DHKN", "qd")) - return -EIO; - } else { - *mask = ibm->state.hotkey.mask; - } - return 0; + return 0; + + if (hotkey_mask_supported) + if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) + return 0; + + return 1; } -static int hotkey_set(struct ibm_struct *ibm, int status, int mask) +static int hotkey_set(int status, int mask) { int i; if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) - return -EIO; - - if (!ibm->supported) return 0; - for (i=0; i<32; i++) { - int bit = ((1 << i) & mask) != 0; - if (!acpi_evalf(hkey_handle, NULL, "MHKM", "vdd", i+1, bit)) - return -EIO; - } + if (hotkey_mask_supported) + for (i = 0; i < 32; i++) { + int bit = ((1 << i) & mask) != 0; + if (!acpi_evalf(hkey_handle, + NULL, "MHKM", "vdd", i + 1, bit)) + return 0; + } - return 0; + return 1; } -static int hotkey_init(struct ibm_struct *ibm) +static int hotkey_init(void) { - int ret; + /* hotkey not supported on 570 */ + hotkey_supported = hkey_handle != NULL; - ibm->supported = 1; - ret = hotkey_get(ibm, - &ibm->state.hotkey.status, - &ibm->state.hotkey.mask); - if (ret < 0) { - /* mask not supported on A21e, A22p, T20, T21, X20, X22, X24 */ - ibm->supported = 0; - ret = hotkey_get(ibm, - &ibm->state.hotkey.status, - &ibm->state.hotkey.mask); + if (hotkey_supported) { + /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + A30, R30, R31, T20-22, X20-21, X22-24 */ + hotkey_mask_supported = + acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); + + if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) + return -ENODEV; } - return ret; -} + return 0; +} -static int hotkey_read(struct ibm_struct *ibm, char *p) +static int hotkey_read(char *p) { int status, mask; int len = 0; - if (hotkey_get(ibm, &status, &mask) < 0) + if (!hotkey_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + + if (!hotkey_get(&status, &mask)) return -EIO; len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); - if (ibm->supported) { + if (hotkey_mask_supported) { len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); len += sprintf(p + len, "commands:\tenable, disable, reset, <mask>\n"); @@ -352,23 +449,26 @@ static int hotkey_read(struct ibm_struct *ibm, char *p) return len; } -static int hotkey_write(struct ibm_struct *ibm, char *buf) +static int hotkey_write(char *buf) { int status, mask; char *cmd; int do_cmd = 0; - if (hotkey_get(ibm, &status, &mask) < 0) + if (!hotkey_supported) return -ENODEV; + if (!hotkey_get(&status, &mask)) + return -EIO; + while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { status = 1; } else if (strlencmp(cmd, "disable") == 0) { status = 0; } else if (strlencmp(cmd, "reset") == 0) { - status = ibm->state.hotkey.status; - mask = ibm->state.hotkey.mask; + status = hotkey_orig_status; + mask = hotkey_orig_mask; } else if (sscanf(cmd, "0x%x", &mask) == 1) { /* mask set */ } else if (sscanf(cmd, "%x", &mask) == 1) { @@ -378,15 +478,16 @@ static int hotkey_write(struct ibm_struct *ibm, char *buf) do_cmd = 1; } - if (do_cmd && hotkey_set(ibm, status, mask) < 0) + if (do_cmd && !hotkey_set(status, mask)) return -EIO; return 0; -} +} -static void hotkey_exit(struct ibm_struct *ibm) +static void hotkey_exit(void) { - hotkey_set(ibm, ibm->state.hotkey.status, ibm->state.hotkey.mask); + if (hotkey_supported) + hotkey_set(hotkey_orig_status, hotkey_orig_mask); } static void hotkey_notify(struct ibm_struct *ibm, u32 event) @@ -398,33 +499,38 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) else { printk(IBM_ERR "unknown hotkey event %d\n", event); acpi_bus_generate_event(ibm->device, event, 0); - } + } } -static int bluetooth_init(struct ibm_struct *ibm) +static int bluetooth_supported; + +static int bluetooth_init(void) { - /* bluetooth not supported on A21e, G40, T20, T21, X20 */ - ibm->supported = acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); + /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ + bluetooth_supported = hkey_handle && + acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); return 0; } -static int bluetooth_status(struct ibm_struct *ibm) +static int bluetooth_status(void) { int status; - if (!ibm->supported || !acpi_evalf(hkey_handle, &status, "GBDC", "d")) + if (!bluetooth_supported || + !acpi_evalf(hkey_handle, &status, "GBDC", "d")) status = 0; return status; } -static int bluetooth_read(struct ibm_struct *ibm, char *p) +static int bluetooth_read(char *p) { int len = 0; - int status = bluetooth_status(ibm); + int status = bluetooth_status(); - if (!ibm->supported) + if (!bluetooth_supported) len += sprintf(p + len, "status:\t\tnot supported\n"); else if (!(status & 1)) len += sprintf(p + len, "status:\t\tnot installed\n"); @@ -436,14 +542,14 @@ static int bluetooth_read(struct ibm_struct *ibm, char *p) return len; } -static int bluetooth_write(struct ibm_struct *ibm, char *buf) +static int bluetooth_write(char *buf) { - int status = bluetooth_status(ibm); + int status = bluetooth_status(); char *cmd; int do_cmd = 0; - if (!ibm->supported) - return -EINVAL; + if (!bluetooth_supported) + return -ENODEV; while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { @@ -456,64 +562,166 @@ static int bluetooth_write(struct ibm_struct *ibm, char *buf) } if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) - return -EIO; + return -EIO; return 0; } -static int video_init(struct ibm_struct *ibm) +static int video_supported; +static int video_orig_autosw; + +#define VIDEO_570 1 +#define VIDEO_770 2 +#define VIDEO_NEW 3 + +static int video_init(void) { - if (!acpi_evalf(vid_handle, - &ibm->state.video.autoswitch, "^VDEE", "d")) - return -ENODEV; + int ivga; + + if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) + /* G41, assume IVGA doesn't change */ + vid_handle = vid2_handle; + + if (!vid_handle) + /* video switching not supported on R30, R31 */ + video_supported = 0; + else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) + /* 570 */ + video_supported = VIDEO_570; + else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) + /* 600e/x, 770e, 770x */ + video_supported = VIDEO_770; + else + /* all others */ + video_supported = VIDEO_NEW; return 0; } -static int video_status(struct ibm_struct *ibm) +static int video_status(void) { int status = 0; int i; - acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); - if (acpi_evalf(NULL, &i, "\\VCDC", "d")) - status |= 0x02 * i; + if (video_supported == VIDEO_570) { + if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) + status = i & 3; + } else if (video_supported == VIDEO_770) { + if (acpi_evalf(NULL, &i, "\\VCDL", "d")) + status |= 0x01 * i; + if (acpi_evalf(NULL, &i, "\\VCDC", "d")) + status |= 0x02 * i; + } else if (video_supported == VIDEO_NEW) { + acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); + if (acpi_evalf(NULL, &i, "\\VCDC", "d")) + status |= 0x02 * i; + + acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); + if (acpi_evalf(NULL, &i, "\\VCDL", "d")) + status |= 0x01 * i; + if (acpi_evalf(NULL, &i, "\\VCDD", "d")) + status |= 0x08 * i; + } + + return status; +} - acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); - if (acpi_evalf(NULL, &i, "\\VCDL", "d")) - status |= 0x01 * i; - if (acpi_evalf(NULL, &i, "\\VCDD", "d")) - status |= 0x08 * i; +static int video_autosw(void) +{ + int autosw = 0; - if (acpi_evalf(vid_handle, &i, "^VDEE", "d")) - status |= 0x10 * (i & 1); + if (video_supported == VIDEO_570) + acpi_evalf(vid_handle, &autosw, "SWIT", "d"); + else if (video_supported == VIDEO_770 || video_supported == VIDEO_NEW) + acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); - return status; + return autosw & 1; } -static int video_read(struct ibm_struct *ibm, char *p) +static int video_read(char *p) { - int status = video_status(ibm); + int status = video_status(); + int autosw = video_autosw(); int len = 0; + if (!video_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + + len += sprintf(p + len, "status:\t\tsupported\n"); len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); - len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); - len += sprintf(p + len, "auto:\t\t%s\n", enabled(status, 4)); - len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable, " - "crt_enable, crt_disable\n"); - len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable, " - "auto_enable, auto_disable\n"); + if (video_supported == VIDEO_NEW) + len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); + len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); + len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); + len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); + if (video_supported == VIDEO_NEW) + len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); + len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); return len; } -static int video_write(struct ibm_struct *ibm, char *buf) +static int video_switch(void) +{ + int autosw = video_autosw(); + int ret; + + if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) + return -EIO; + ret = video_supported == VIDEO_570 ? + acpi_evalf(ec_handle, NULL, "_Q16", "v") : + acpi_evalf(vid_handle, NULL, "VSWT", "v"); + acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); + + return ret; +} + +static int video_expand(void) +{ + if (video_supported == VIDEO_570) + return acpi_evalf(ec_handle, NULL, "_Q17", "v"); + else if (video_supported == VIDEO_770) + return acpi_evalf(vid_handle, NULL, "VEXP", "v"); + else + return acpi_evalf(NULL, NULL, "\\VEXP", "v"); +} + +static int video_switch2(int status) +{ + int ret; + + if (video_supported == VIDEO_570) { + ret = acpi_evalf(NULL, NULL, + "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); + } else if (video_supported == VIDEO_770) { + int autosw = video_autosw(); + if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) + return -EIO; + + ret = acpi_evalf(vid_handle, NULL, + "ASWT", "vdd", status * 0x100, 0); + + acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); + } else { + ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && + acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); + } + + return ret; +} + +static int video_write(char *buf) { char *cmd; int enable, disable, status; + if (!video_supported) + return -ENODEV; + enable = disable = 0; while ((cmd = next_cmd(&buf))) { @@ -525,9 +733,11 @@ static int video_write(struct ibm_struct *ibm, char *buf) enable |= 0x02; } else if (strlencmp(cmd, "crt_disable") == 0) { disable |= 0x02; - } else if (strlencmp(cmd, "dvi_enable") == 0) { + } else if (video_supported == VIDEO_NEW && + strlencmp(cmd, "dvi_enable") == 0) { enable |= 0x08; - } else if (strlencmp(cmd, "dvi_disable") == 0) { + } else if (video_supported == VIDEO_NEW && + strlencmp(cmd, "dvi_disable") == 0) { disable |= 0x08; } else if (strlencmp(cmd, "auto_enable") == 0) { if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) @@ -536,71 +746,75 @@ static int video_write(struct ibm_struct *ibm, char *buf) if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) return -EIO; } else if (strlencmp(cmd, "video_switch") == 0) { - int autoswitch; - if (!acpi_evalf(vid_handle, &autoswitch, "^VDEE", "d")) - return -EIO; - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) - return -EIO; - if (!acpi_evalf(vid_handle, NULL, "VSWT", "v")) - return -EIO; - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", - autoswitch)) + if (!video_switch()) return -EIO; } else if (strlencmp(cmd, "expand_toggle") == 0) { - if (!acpi_evalf(NULL, NULL, "\\VEXP", "v")) + if (!video_expand()) return -EIO; } else return -EINVAL; } if (enable || disable) { - status = (video_status(ibm) & 0x0f & ~disable) | enable; - if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80)) - return -EIO; - if (!acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1)) + status = (video_status() & 0x0f & ~disable) | enable; + if (!video_switch2(status)) return -EIO; } return 0; } -static void video_exit(struct ibm_struct *ibm) +static void video_exit(void) { - acpi_evalf(vid_handle, NULL, "_DOS", "vd", - ibm->state.video.autoswitch); + acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); } -static int light_init(struct ibm_struct *ibm) +static int light_supported; +static int light_status_supported; + +static int light_init(void) { - /* kblt not supported on G40, R32, X20 */ - ibm->supported = acpi_evalf(ec_handle, NULL, "KBLT", "qv"); + /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ + light_supported = (cmos_handle || lght_handle) && !ledb_handle; + + if (light_supported) + /* light status not supported on + 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ + light_status_supported = acpi_evalf(ec_handle, NULL, + "KBLT", "qv"); return 0; } -static int light_read(struct ibm_struct *ibm, char *p) +static int light_read(char *p) { int len = 0; int status = 0; - if (ibm->supported) { + if (!light_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + } else if (!light_status_supported) { + len += sprintf(p + len, "status:\t\tunknown\n"); + len += sprintf(p + len, "commands:\ton, off\n"); + } else { if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) return -EIO; len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); - } else - len += sprintf(p + len, "status:\t\tunknown\n"); - - len += sprintf(p + len, "commands:\ton, off\n"); + len += sprintf(p + len, "commands:\ton, off\n"); + } return len; } -static int light_write(struct ibm_struct *ibm, char *buf) +static int light_write(char *buf) { int cmos_cmd, lght_cmd; char *cmd; int success; - + + if (!light_supported) + return -ENODEV; + while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "on") == 0) { cmos_cmd = 0x0c; @@ -610,10 +824,10 @@ static int light_write(struct ibm_struct *ibm, char *buf) lght_cmd = 0; } else return -EINVAL; - + success = cmos_handle ? - acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : - acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); + acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : + acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); if (!success) return -EIO; } @@ -633,7 +847,7 @@ static int _sta(acpi_handle handle) #define dock_docked() (_sta(dock_handle) & 1) -static int dock_read(struct ibm_struct *ibm, char *p) +static int dock_read(char *p) { int len = 0; int docked = dock_docked(); @@ -650,18 +864,17 @@ static int dock_read(struct ibm_struct *ibm, char *p) return len; } -static int dock_write(struct ibm_struct *ibm, char *buf) +static int dock_write(char *buf) { char *cmd; if (!dock_docked()) - return -EINVAL; + return -ENODEV; while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "undock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0)) - return -EIO; - if (!acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) + if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || + !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) return -EIO; } else if (strlencmp(cmd, "dock") == 0) { if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) @@ -671,90 +884,131 @@ static int dock_write(struct ibm_struct *ibm, char *buf) } return 0; -} +} static void dock_notify(struct ibm_struct *ibm, u32 event) { int docked = dock_docked(); - - if (event == 3 && docked) - acpi_bus_generate_event(ibm->device, event, 1); /* button */ + int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); + + if (event == 1 && !pci) /* 570 */ + acpi_bus_generate_event(ibm->device, event, 1); /* button */ + else if (event == 1 && pci) /* 570 */ + acpi_bus_generate_event(ibm->device, event, 3); /* dock */ + else if (event == 3 && docked) + acpi_bus_generate_event(ibm->device, event, 1); /* button */ else if (event == 3 && !docked) - acpi_bus_generate_event(ibm->device, event, 2); /* undock */ + acpi_bus_generate_event(ibm->device, event, 2); /* undock */ else if (event == 0 && docked) - acpi_bus_generate_event(ibm->device, event, 3); /* dock */ + acpi_bus_generate_event(ibm->device, event, 3); /* dock */ else { printk(IBM_ERR "unknown dock event %d, status %d\n", event, _sta(dock_handle)); - acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ + acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ } } -#define bay_occupied() (_sta(bay_handle) & 1) +static int bay_status_supported; +static int bay_status2_supported; +static int bay_eject_supported; +static int bay_eject2_supported; -static int bay_init(struct ibm_struct *ibm) +static int bay_init(void) { - /* bay not supported on A21e, A22p, A31, A31p, G40, R32, R40e */ - ibm->supported = bay_handle && bayej_handle && - acpi_evalf(bay_handle, NULL, "_STA", "qv"); + bay_status_supported = bay_handle && + acpi_evalf(bay_handle, NULL, "_STA", "qv"); + bay_status2_supported = bay2_handle && + acpi_evalf(bay2_handle, NULL, "_STA", "qv"); + + bay_eject_supported = bay_handle && bay_ej_handle && + (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); + bay_eject2_supported = bay2_handle && bay2_ej_handle && + (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); return 0; } -static int bay_read(struct ibm_struct *ibm, char *p) +#define bay_occupied(b) (_sta(b##_handle) & 1) + +static int bay_read(char *p) { int len = 0; - int occupied = bay_occupied(); - - if (!ibm->supported) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else if (!occupied) - len += sprintf(p + len, "status:\t\tunoccupied\n"); - else { - len += sprintf(p + len, "status:\t\toccupied\n"); + int occupied = bay_occupied(bay); + int occupied2 = bay_occupied(bay2); + int eject, eject2; + + len += sprintf(p + len, "status:\t\t%s\n", bay_status_supported ? + (occupied ? "occupied" : "unoccupied") : + "not supported"); + if (bay_status2_supported) + len += sprintf(p + len, "status2:\t%s\n", occupied2 ? + "occupied" : "unoccupied"); + + eject = bay_eject_supported && occupied; + eject2 = bay_eject2_supported && occupied2; + + if (eject && eject2) + len += sprintf(p + len, "commands:\teject, eject2\n"); + else if (eject) len += sprintf(p + len, "commands:\teject\n"); - } + else if (eject2) + len += sprintf(p + len, "commands:\teject2\n"); return len; } -static int bay_write(struct ibm_struct *ibm, char *buf) +static int bay_write(char *buf) { char *cmd; + if (!bay_eject_supported && !bay_eject2_supported) + return -ENODEV; + while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "eject") == 0) { - if (!ibm->supported || - !acpi_evalf(bay_handle, NULL, "_EJ0", "vd", 1)) + if (bay_eject_supported && strlencmp(cmd, "eject") == 0) { + if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) + return -EIO; + } else if (bay_eject2_supported && + strlencmp(cmd, "eject2") == 0) { + if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) return -EIO; } else return -EINVAL; } return 0; -} +} static void bay_notify(struct ibm_struct *ibm, u32 event) { acpi_bus_generate_event(ibm->device, event, 0); } -static int cmos_read(struct ibm_struct *ibm, char *p) +static int cmos_read(char *p) { int len = 0; - /* cmos not supported on A21e, A22p, T20, T21, X20 */ + /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + R30, R31, T20-22, X20-21 */ if (!cmos_handle) len += sprintf(p + len, "status:\t\tnot supported\n"); else { len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t<int>\n"); + len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); } return len; } -static int cmos_write(struct ibm_struct *ibm, char *buf) +static int cmos_eval(int cmos_cmd) +{ + if (cmos_handle) + return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); + else + return 1; +} + +static int cmos_write(char *buf) { char *cmd; int cmos_cmd; @@ -763,183 +1017,644 @@ static int cmos_write(struct ibm_struct *ibm, char *buf) return -EINVAL; while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%u", &cmos_cmd) == 1) { + if (sscanf(cmd, "%u", &cmos_cmd) == 1 && + cmos_cmd >= 0 && cmos_cmd <= 21) { /* cmos_cmd set */ } else return -EINVAL; - if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) + if (!cmos_eval(cmos_cmd)) return -EIO; } return 0; -} - -static int led_read(struct ibm_struct *ibm, char *p) +} + +static int led_supported; + +#define LED_570 1 +#define LED_OLD 2 +#define LED_NEW 3 + +static int led_init(void) +{ + if (!led_handle) + /* led not supported on R30, R31 */ + led_supported = 0; + else if (strlencmp(led_path, "SLED") == 0) + /* 570 */ + led_supported = LED_570; + else if (strlencmp(led_path, "SYSL") == 0) + /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ + led_supported = LED_OLD; + else + /* all others */ + led_supported = LED_NEW; + + return 0; +} + +#define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) + +static int led_read(char *p) { int len = 0; + if (!led_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + len += sprintf(p + len, "status:\t\tsupported\n"); + + if (led_supported == LED_570) { + /* 570 */ + int i, status; + for (i = 0; i < 8; i++) { + if (!acpi_evalf(ec_handle, + &status, "GLED", "dd", 1 << i)) + return -EIO; + len += sprintf(p + len, "%d:\t\t%s\n", + i, led_status(status)); + } + } + len += sprintf(p + len, "commands:\t" - "<int> on, <int> off, <int> blink\n"); + "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); return len; } -static int led_write(struct ibm_struct *ibm, char *buf) +/* off, on, blink */ +static const int led_sled_arg1[] = { 0, 1, 3 }; +static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ +static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ +static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; + +#define EC_HLCL 0x0c +#define EC_HLBL 0x0d +#define EC_HLMS 0x0e + +static int led_write(char *buf) { char *cmd; - unsigned int led; - int led_cmd, sysl_cmd, bled_a, bled_b; + int led, ind, ret; + + if (!led_supported) + return -ENODEV; while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%u", &led) != 1) + if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) return -EINVAL; - if (strstr(cmd, "blink")) { - led_cmd = 0xc0; - sysl_cmd = 2; - bled_a = 2; - bled_b = 1; + if (strstr(cmd, "off")) { + ind = 0; } else if (strstr(cmd, "on")) { - led_cmd = 0x80; - sysl_cmd = 1; - bled_a = 2; - bled_b = 0; - } else if (strstr(cmd, "off")) { - led_cmd = sysl_cmd = bled_a = bled_b = 0; + ind = 1; + } else if (strstr(cmd, "blink")) { + ind = 2; } else return -EINVAL; - - if (led_handle) { + + if (led_supported == LED_570) { + /* 570 */ + led = 1 << led; if (!acpi_evalf(led_handle, NULL, NULL, "vdd", - led, led_cmd)) + led, led_sled_arg1[ind])) return -EIO; - } else if (led < 2) { - if (acpi_evalf(sysl_handle, NULL, NULL, "vdd", - led, sysl_cmd)) + } else if (led_supported == LED_OLD) { + /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ + led = 1 << led; + ret = ec_write(EC_HLMS, led); + if (ret >= 0) + ret = + ec_write(EC_HLBL, led * led_exp_hlbl[ind]); + if (ret >= 0) + ret = + ec_write(EC_HLCL, led * led_exp_hlcl[ind]); + if (ret < 0) + return ret; + } else { + /* all others */ + if (!acpi_evalf(led_handle, NULL, NULL, "vdd", + led, led_led_arg1[ind])) return -EIO; - } else if (led == 2 && bled_handle) { - if (acpi_evalf(bled_handle, NULL, NULL, "vdd", - bled_a, bled_b)) + } + } + + return 0; +} + +static int beep_read(char *p) +{ + int len = 0; + + if (!beep_handle) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else { + len += sprintf(p + len, "status:\t\tsupported\n"); + len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); + } + + return len; +} + +static int beep_write(char *buf) +{ + char *cmd; + int beep_cmd; + + if (!beep_handle) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "%u", &beep_cmd) == 1 && + beep_cmd >= 0 && beep_cmd <= 17) { + /* beep_cmd set */ + } else + return -EINVAL; + if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) + return -EIO; + } + + return 0; +} + +static int acpi_ec_read(int i, u8 * p) +{ + int v; + + if (ecrd_handle) { + if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) + return 0; + *p = v; + } else { + if (ec_read(i, p) < 0) + return 0; + } + + return 1; +} + +static int acpi_ec_write(int i, u8 v) +{ + if (ecwr_handle) { + if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) + return 0; + } else { + if (ec_write(i, v) < 0) + return 0; + } + + return 1; +} + +static int thermal_tmp_supported; +static int thermal_updt_supported; + +static int thermal_init(void) +{ + /* temperatures not supported on 570, G4x, R30, R31, R32 */ + thermal_tmp_supported = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); + + /* 600e/x, 770e, 770x */ + thermal_updt_supported = acpi_evalf(ec_handle, NULL, "UPDT", "qv"); + + return 0; +} + +static int thermal_read(char *p) +{ + int len = 0; + + if (!thermal_tmp_supported) + len += sprintf(p + len, "temperatures:\tnot supported\n"); + else { + int i, t; + char tmpi[] = "TMPi"; + s8 tmp[8]; + + if (thermal_updt_supported) + if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) + return -EIO; + + for (i = 0; i < 8; i++) { + tmpi[3] = '0' + i; + if (!acpi_evalf(ec_handle, &t, tmpi, "d")) + return -EIO; + if (thermal_updt_supported) + tmp[i] = (t - 2732 + 5) / 10; + else + tmp[i] = t; + } + + len += sprintf(p + len, + "temperatures:\t%d %d %d %d %d %d %d %d\n", + tmp[0], tmp[1], tmp[2], tmp[3], + tmp[4], tmp[5], tmp[6], tmp[7]); + } + + return len; +} + +static u8 ecdump_regs[256]; + +static int ecdump_read(char *p) +{ + int len = 0; + int i, j; + u8 v; + + len += sprintf(p + len, "EC " + " +00 +01 +02 +03 +04 +05 +06 +07" + " +08 +09 +0a +0b +0c +0d +0e +0f\n"); + for (i = 0; i < 256; i += 16) { + len += sprintf(p + len, "EC 0x%02x:", i); + for (j = 0; j < 16; j++) { + if (!acpi_ec_read(i + j, &v)) + break; + if (v != ecdump_regs[i + j]) + len += sprintf(p + len, " *%02x", v); + else + len += sprintf(p + len, " %02x", v); + ecdump_regs[i + j] = v; + } + len += sprintf(p + len, "\n"); + if (j != 16) + break; + } + + /* These are way too dangerous to advertise openly... */ +#if 0 + len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" + " (<offset> is 00-ff, <value> is 00-ff)\n"); + len += sprintf(p + len, "commands:\t0x<offset> <value> " + " (<offset> is 00-ff, <value> is 0-255)\n"); +#endif + return len; +} + +static int ecdump_write(char *buf) +{ + char *cmd; + int i, v; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { + /* i and v set */ + } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { + /* i and v set */ + } else + return -EINVAL; + if (i >= 0 && i < 256 && v >= 0 && v < 256) { + if (!acpi_ec_write(i, v)) return -EIO; } else return -EINVAL; } return 0; -} - -static int beep_read(struct ibm_struct *ibm, char *p) +} + +static int brightness_offset = 0x31; + +static int brightness_read(char *p) { int len = 0; + u8 level; - len += sprintf(p + len, "commands:\t<int>\n"); + if (!acpi_ec_read(brightness_offset, &level)) { + len += sprintf(p + len, "level:\t\tunreadable\n"); + } else { + len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); + len += sprintf(p + len, "commands:\tup, down\n"); + len += sprintf(p + len, "commands:\tlevel <level>" + " (<level> is 0-7)\n"); + } return len; } -static int beep_write(struct ibm_struct *ibm, char *buf) +#define BRIGHTNESS_UP 4 +#define BRIGHTNESS_DOWN 5 + +static int brightness_write(char *buf) { + int cmos_cmd, inc, i; + u8 level; + int new_level; char *cmd; - int beep_cmd; while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%u", &beep_cmd) == 1) { - /* beep_cmd set */ + if (!acpi_ec_read(brightness_offset, &level)) + return -EIO; + level &= 7; + + if (strlencmp(cmd, "up") == 0) { + new_level = level == 7 ? 7 : level + 1; + } else if (strlencmp(cmd, "down") == 0) { + new_level = level == 0 ? 0 : level - 1; + } else if (sscanf(cmd, "level %d", &new_level) == 1 && + new_level >= 0 && new_level <= 7) { + /* new_level set */ + } else + return -EINVAL; + + cmos_cmd = new_level > level ? BRIGHTNESS_UP : BRIGHTNESS_DOWN; + inc = new_level > level ? 1 : -1; + for (i = level; i != new_level; i += inc) { + if (!cmos_eval(cmos_cmd)) + return -EIO; + if (!acpi_ec_write(brightness_offset, i + inc)) + return -EIO; + } + } + + return 0; +} + +static int volume_offset = 0x30; + +static int volume_read(char *p) +{ + int len = 0; + u8 level; + + if (!acpi_ec_read(volume_offset, &level)) { + len += sprintf(p + len, "level:\t\tunreadable\n"); + } else { + len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); + len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); + len += sprintf(p + len, "commands:\tup, down, mute\n"); + len += sprintf(p + len, "commands:\tlevel <level>" + " (<level> is 0-15)\n"); + } + + return len; +} + +#define VOLUME_DOWN 0 +#define VOLUME_UP 1 +#define VOLUME_MUTE 2 + +static int volume_write(char *buf) +{ + int cmos_cmd, inc, i; + u8 level, mute; + int new_level, new_mute; + char *cmd; + + while ((cmd = next_cmd(&buf))) { + if (!acpi_ec_read(volume_offset, &level)) + return -EIO; + new_mute = mute = level & 0x40; + new_level = level = level & 0xf; + + if (strlencmp(cmd, "up") == 0) { + if (mute) + new_mute = 0; + else + new_level = level == 15 ? 15 : level + 1; + } else if (strlencmp(cmd, "down") == 0) { + if (mute) + new_mute = 0; + else + new_level = level == 0 ? 0 : level - 1; + } else if (sscanf(cmd, "level %d", &new_level) == 1 && + new_level >= 0 && new_level <= 15) { + /* new_level set */ + } else if (strlencmp(cmd, "mute") == 0) { + new_mute = 0x40; } else return -EINVAL; - if (!acpi_evalf(beep_handle, NULL, NULL, "vd", beep_cmd)) + if (new_level != level) { /* mute doesn't change */ + cmos_cmd = new_level > level ? VOLUME_UP : VOLUME_DOWN; + inc = new_level > level ? 1 : -1; + + if (mute && (!cmos_eval(cmos_cmd) || + !acpi_ec_write(volume_offset, level))) + return -EIO; + + for (i = level; i != new_level; i += inc) + if (!cmos_eval(cmos_cmd) || + !acpi_ec_write(volume_offset, i + inc)) + return -EIO; + + if (mute && (!cmos_eval(VOLUME_MUTE) || + !acpi_ec_write(volume_offset, + new_level + mute))) + return -EIO; + } + + if (new_mute != mute) { /* level doesn't change */ + cmos_cmd = new_mute ? VOLUME_MUTE : VOLUME_UP; + + if (!cmos_eval(cmos_cmd) || + !acpi_ec_write(volume_offset, level + new_mute)) + return -EIO; + } + } + + return 0; +} + +static int fan_status_offset = 0x2f; +static int fan_rpm_offset = 0x84; + +static int fan_read(char *p) +{ + int len = 0; + int s; + u8 lo, hi, status; + + if (gfan_handle) { + /* 570, 600e/x, 770e, 770x */ + if (!acpi_evalf(gfan_handle, &s, NULL, "d")) return -EIO; + + len += sprintf(p + len, "level:\t\t%d\n", s); + } else { + /* all except 570, 600e/x, 770e, 770x */ + if (!acpi_ec_read(fan_status_offset, &status)) + len += sprintf(p + len, "status:\t\tunreadable\n"); + else + len += sprintf(p + len, "status:\t\t%s\n", + enabled(status, 7)); + + if (!acpi_ec_read(fan_rpm_offset, &lo) || + !acpi_ec_read(fan_rpm_offset + 1, &hi)) + len += sprintf(p + len, "speed:\t\tunreadable\n"); + else + len += sprintf(p + len, "speed:\t\t%d\n", + (hi << 8) + lo); + } + + if (sfan_handle) + /* 570, 770x-JL */ + len += sprintf(p + len, "commands:\tlevel <level>" + " (<level> is 0-7)\n"); + if (!gfan_handle) + /* all except 570, 600e/x, 770e, 770x */ + len += sprintf(p + len, "commands:\tenable, disable\n"); + if (fans_handle) + /* X31, X40 */ + len += sprintf(p + len, "commands:\tspeed <speed>" + " (<speed> is 0-65535)\n"); + + return len; +} + +static int fan_write(char *buf) +{ + char *cmd; + int level, speed; + + while ((cmd = next_cmd(&buf))) { + if (sfan_handle && + sscanf(cmd, "level %d", &level) == 1 && + level >= 0 && level <= 7) { + /* 570, 770x-JL */ + if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) + return -EIO; + } else if (!gfan_handle && strlencmp(cmd, "enable") == 0) { + /* all except 570, 600e/x, 770e, 770x */ + if (!acpi_ec_write(fan_status_offset, 0x80)) + return -EIO; + } else if (!gfan_handle && strlencmp(cmd, "disable") == 0) { + /* all except 570, 600e/x, 770e, 770x */ + if (!acpi_ec_write(fan_status_offset, 0x00)) + return -EIO; + } else if (fans_handle && + sscanf(cmd, "speed %d", &speed) == 1 && + speed >= 0 && speed <= 65535) { + /* X31, X40 */ + if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", + speed, speed, speed)) + return -EIO; + } else + return -EINVAL; } return 0; -} - +} + static struct ibm_struct ibms[] = { { - .name = "driver", - .init = driver_init, - .read = driver_read, - }, + .name = "driver", + .init = driver_init, + .read = driver_read, + }, + { + .name = "hotkey", + .hid = IBM_HKEY_HID, + .init = hotkey_init, + .read = hotkey_read, + .write = hotkey_write, + .exit = hotkey_exit, + .notify = hotkey_notify, + .handle = &hkey_handle, + .type = ACPI_DEVICE_NOTIFY, + }, + { + .name = "bluetooth", + .init = bluetooth_init, + .read = bluetooth_read, + .write = bluetooth_write, + }, + { + .name = "video", + .init = video_init, + .read = video_read, + .write = video_write, + .exit = video_exit, + }, { - .name = "hotkey", - .hid = "IBM0068", - .init = hotkey_init, - .read = hotkey_read, - .write = hotkey_write, - .exit = hotkey_exit, - .notify = hotkey_notify, - .handle = &hkey_handle, - .type = ACPI_DEVICE_NOTIFY, - }, + .name = "light", + .init = light_init, + .read = light_read, + .write = light_write, + }, { - .name = "bluetooth", - .init = bluetooth_init, - .read = bluetooth_read, - .write = bluetooth_write, - }, + .name = "dock", + .read = dock_read, + .write = dock_write, + .notify = dock_notify, + .handle = &dock_handle, + .type = ACPI_SYSTEM_NOTIFY, + }, { - .name = "video", - .init = video_init, - .read = video_read, - .write = video_write, - .exit = video_exit, - }, + .name = "dock", + .hid = IBM_PCI_HID, + .notify = dock_notify, + .handle = &pci_handle, + .type = ACPI_SYSTEM_NOTIFY, + }, { - .name = "light", - .init = light_init, - .read = light_read, - .write = light_write, - }, + .name = "bay", + .init = bay_init, + .read = bay_read, + .write = bay_write, + .notify = bay_notify, + .handle = &bay_handle, + .type = ACPI_SYSTEM_NOTIFY, + }, { - .name = "dock", - .read = dock_read, - .write = dock_write, - .notify = dock_notify, - .handle = &dock_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, + .name = "cmos", + .read = cmos_read, + .write = cmos_write, + }, { - .name = "bay", - .init = bay_init, - .read = bay_read, - .write = bay_write, - .notify = bay_notify, - .handle = &bay_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, + .name = "led", + .init = led_init, + .read = led_read, + .write = led_write, + }, { - .name = "cmos", - .read = cmos_read, - .write = cmos_write, - .experimental = 1, - }, + .name = "beep", + .read = beep_read, + .write = beep_write, + }, { - .name = "led", - .read = led_read, - .write = led_write, - .experimental = 1, - }, + .name = "thermal", + .init = thermal_init, + .read = thermal_read, + }, { - .name = "beep", - .read = beep_read, - .write = beep_write, - .experimental = 1, - }, + .name = "ecdump", + .read = ecdump_read, + .write = ecdump_write, + .experimental = 1, + }, + { + .name = "brightness", + .read = brightness_read, + .write = brightness_write, + .experimental = 1, + }, + { + .name = "volume", + .read = volume_read, + .write = volume_write, + .experimental = 1, + }, + { + .name = "fan", + .read = fan_read, + .write = fan_write, + .experimental = 1, + }, }; -#define NUM_IBMS (sizeof(ibms)/sizeof(ibms[0])) static int dispatch_read(char *page, char **start, off_t off, int count, int *eof, void *data) { struct ibm_struct *ibm = (struct ibm_struct *)data; int len; - + if (!ibm || !ibm->read) return -EINVAL; - len = ibm->read(ibm, page); + len = ibm->read(page); if (len < 0) return len; @@ -955,7 +1670,7 @@ static int dispatch_read(char *page, char **start, off_t off, int count, return len; } -static int dispatch_write(struct file *file, const char __user *userbuf, +static int dispatch_write(struct file *file, const char __user * userbuf, unsigned long count, void *data) { struct ibm_struct *ibm = (struct ibm_struct *)data; @@ -969,20 +1684,20 @@ static int dispatch_write(struct file *file, const char __user *userbuf, if (!kernbuf) return -ENOMEM; - if (copy_from_user(kernbuf, userbuf, count)) { + if (copy_from_user(kernbuf, userbuf, count)) { kfree(kernbuf); - return -EFAULT; + return -EFAULT; } kernbuf[count] = 0; strcat(kernbuf, ","); - ret = ibm->write(ibm, kernbuf); + ret = ibm->write(kernbuf); if (ret == 0) ret = count; kfree(kernbuf); - return ret; + return ret; } static void dispatch_notify(acpi_handle handle, u32 event, void *data) @@ -995,7 +1710,7 @@ static void dispatch_notify(acpi_handle handle, u32 event, void *data) ibm->notify(ibm, event); } -static int setup_notify(struct ibm_struct *ibm) +static int __init setup_notify(struct ibm_struct *ibm) { acpi_status status; int ret; @@ -1020,17 +1735,15 @@ static int setup_notify(struct ibm_struct *ibm) return -ENODEV; } - ibm->notify_installed = 1; - return 0; } -static int ibmacpi_device_add(struct acpi_device *device) +static int __init ibm_device_add(struct acpi_device *device) { return 0; } -static int register_driver(struct ibm_struct *ibm) +static int __init register_driver(struct ibm_struct *ibm) { int ret; @@ -1043,7 +1756,7 @@ static int register_driver(struct ibm_struct *ibm) memset(ibm->driver, 0, sizeof(struct acpi_driver)); sprintf(ibm->driver->name, "%s/%s", IBM_NAME, ibm->name); ibm->driver->ids = ibm->hid; - ibm->driver->ops.add = &ibmacpi_device_add; + ibm->driver->ops.add = &ibm_device_add; ret = acpi_bus_register_driver(ibm->driver); if (ret < 0) { @@ -1055,7 +1768,7 @@ static int register_driver(struct ibm_struct *ibm) return ret; } -static int ibm_init(struct ibm_struct *ibm) +static int __init ibm_init(struct ibm_struct *ibm) { int ret; struct proc_dir_entry *entry; @@ -1071,31 +1784,34 @@ static int ibm_init(struct ibm_struct *ibm) } if (ibm->init) { - ret = ibm->init(ibm); + ret = ibm->init(); if (ret != 0) return ret; ibm->init_called = 1; } - entry = create_proc_entry(ibm->name, S_IFREG | S_IRUGO | S_IWUSR, - proc_dir); - if (!entry) { - printk(IBM_ERR "unable to create proc entry %s\n", ibm->name); - return -ENODEV; - } - entry->owner = THIS_MODULE; - ibm->proc_created = 1; - - entry->data = ibm; - if (ibm->read) + if (ibm->read) { + entry = create_proc_entry(ibm->name, + S_IFREG | S_IRUGO | S_IWUSR, + proc_dir); + if (!entry) { + printk(IBM_ERR "unable to create proc entry %s\n", + ibm->name); + return -ENODEV; + } + entry->owner = THIS_MODULE; + entry->data = ibm; entry->read_proc = &dispatch_read; - if (ibm->write) - entry->write_proc = &dispatch_write; + if (ibm->write) + entry->write_proc = &dispatch_write; + ibm->proc_created = 1; + } if (ibm->notify) { ret = setup_notify(ibm); if (ret < 0) return ret; + ibm->notify_installed = 1; } return 0; @@ -1111,7 +1827,7 @@ static void ibm_exit(struct ibm_struct *ibm) remove_proc_entry(ibm->name, proc_dir); if (ibm->init_called && ibm->exit) - ibm->exit(ibm); + ibm->exit(); if (ibm->driver_registered) { acpi_bus_unregister_driver(ibm->driver); @@ -1119,60 +1835,66 @@ static void ibm_exit(struct ibm_struct *ibm) } } -static int ibm_handle_init(char *name, - acpi_handle *handle, acpi_handle parent, - char **paths, int num_paths, int required) +static void __init ibm_handle_init(char *name, + acpi_handle * handle, acpi_handle parent, + char **paths, int num_paths, char **path) { int i; acpi_status status; - for (i=0; i<num_paths; i++) { + for (i = 0; i < num_paths; i++) { status = acpi_get_handle(parent, paths[i], handle); - if (ACPI_SUCCESS(status)) - return 0; - } - - *handle = NULL; - - if (required) { - printk(IBM_ERR "%s object not found\n", name); - return -1; + if (ACPI_SUCCESS(status)) { + *path = paths[i]; + return; + } } - return 0; + *handle = NULL; } -#define IBM_HANDLE_INIT(object, required) \ +#define IBM_HANDLE_INIT(object) \ ibm_handle_init(#object, &object##_handle, *object##_parent, \ - object##_paths, sizeof(object##_paths)/sizeof(char*), required) - + object##_paths, ARRAY_SIZE(object##_paths), &object##_path) static int set_ibm_param(const char *val, struct kernel_param *kp) { unsigned int i; - char arg_with_comma[32]; - - if (strlen(val) > 30) - return -ENOSPC; - strcpy(arg_with_comma, val); - strcat(arg_with_comma, ","); + for (i = 0; i < ARRAY_SIZE(ibms); i++) + if (strcmp(ibms[i].name, kp->name) == 0 && ibms[i].write) { + if (strlen(val) > sizeof(ibms[i].param) - 2) + return -ENOSPC; + strcpy(ibms[i].param, val); + strcat(ibms[i].param, ","); + return 0; + } - for (i=0; i<NUM_IBMS; i++) - if (strcmp(ibms[i].name, kp->name) == 0) - return ibms[i].write(&ibms[i], arg_with_comma); - BUG(); return -EINVAL; } #define IBM_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0) +IBM_PARAM(hotkey); +IBM_PARAM(bluetooth); +IBM_PARAM(video); +IBM_PARAM(light); +IBM_PARAM(dock); +IBM_PARAM(bay); +IBM_PARAM(cmos); +IBM_PARAM(led); +IBM_PARAM(beep); +IBM_PARAM(ecdump); +IBM_PARAM(brightness); +IBM_PARAM(volume); +IBM_PARAM(fan); + static void acpi_ibm_exit(void) { int i; - for (i=NUM_IBMS-1; i>=0; i--) + for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) ibm_exit(&ibms[i]); remove_proc_entry(IBM_DIR, acpi_root_dir); @@ -1185,30 +1907,40 @@ static int __init acpi_ibm_init(void) if (acpi_disabled) return -ENODEV; - if (!acpi_specific_hotkey_enabled){ - printk(IBM_ERR "Using generic hotkey driver\n"); - return -ENODEV; - } - /* these handles are required */ - if (IBM_HANDLE_INIT(ec, 1) < 0 || - IBM_HANDLE_INIT(hkey, 1) < 0 || - IBM_HANDLE_INIT(vid, 1) < 0 || - IBM_HANDLE_INIT(beep, 1) < 0) + if (!acpi_specific_hotkey_enabled) { + printk(IBM_ERR "using generic hotkey driver\n"); return -ENODEV; + } - /* these handles have alternatives */ - IBM_HANDLE_INIT(lght, 0); - if (IBM_HANDLE_INIT(cmos, !lght_handle) < 0) - return -ENODEV; - IBM_HANDLE_INIT(sysl, 0); - if (IBM_HANDLE_INIT(led, !sysl_handle) < 0) + /* ec is required because many other handles are relative to it */ + IBM_HANDLE_INIT(ec); + if (!ec_handle) { + printk(IBM_ERR "ec object not found\n"); return -ENODEV; + } /* these handles are not required */ - IBM_HANDLE_INIT(dock, 0); - IBM_HANDLE_INIT(bay, 0); - IBM_HANDLE_INIT(bayej, 0); - IBM_HANDLE_INIT(bled, 0); + IBM_HANDLE_INIT(vid); + IBM_HANDLE_INIT(vid2); + IBM_HANDLE_INIT(ledb); + IBM_HANDLE_INIT(led); + IBM_HANDLE_INIT(hkey); + IBM_HANDLE_INIT(lght); + IBM_HANDLE_INIT(cmos); + IBM_HANDLE_INIT(dock); + IBM_HANDLE_INIT(pci); + IBM_HANDLE_INIT(bay); + if (bay_handle) + IBM_HANDLE_INIT(bay_ej); + IBM_HANDLE_INIT(bay2); + if (bay2_handle) + IBM_HANDLE_INIT(bay2_ej); + IBM_HANDLE_INIT(beep); + IBM_HANDLE_INIT(ecrd); + IBM_HANDLE_INIT(ecwr); + IBM_HANDLE_INIT(fans); + IBM_HANDLE_INIT(gfan); + IBM_HANDLE_INIT(sfan); proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); if (!proc_dir) { @@ -1216,9 +1948,11 @@ static int __init acpi_ibm_init(void) return -ENODEV; } proc_dir->owner = THIS_MODULE; - - for (i=0; i<NUM_IBMS; i++) { + + for (i = 0; i < ARRAY_SIZE(ibms); i++) { ret = ibm_init(&ibms[i]); + if (ret >= 0 && *ibms[i].param) + ret = ibms[i].write(ibms[i].param); if (ret < 0) { acpi_ibm_exit(); return ret; @@ -1230,17 +1964,3 @@ static int __init acpi_ibm_init(void) module_init(acpi_ibm_init); module_exit(acpi_ibm_exit); - -MODULE_AUTHOR("Borislav Deianov"); -MODULE_DESCRIPTION(IBM_DESC); -MODULE_LICENSE("GPL"); - -IBM_PARAM(hotkey); -IBM_PARAM(bluetooth); -IBM_PARAM(video); -IBM_PARAM(light); -IBM_PARAM(dock); -IBM_PARAM(bay); -IBM_PARAM(cmos); -IBM_PARAM(led); -IBM_PARAM(beep); -- cgit v1.2.3-70-g09d2 From fe1b2d544d71300f8e2d151c3c77a130d13a58be Mon Sep 17 00:00:00 2001 From: Christoph Hellwig <hch@lst.de> Date: Tue, 6 Sep 2005 14:15:37 +0200 Subject: [SCSI] unexport scsi_add_timer/scsi_delete_timer Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> --- Documentation/scsi/scsi_mid_low_api.txt | 41 --------------------------------- drivers/scsi/scsi_error.c | 2 -- drivers/scsi/scsi_priv.h | 3 +++ include/scsi/scsi_eh.h | 3 --- 4 files changed, 3 insertions(+), 46 deletions(-) (limited to 'Documentation') diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index 7536823c0cb..44df89c9c04 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -373,13 +373,11 @@ Summary: scsi_activate_tcq - turn on tag command queueing scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and SCSI bus scan. - scsi_add_timer - (re-)start timer on a SCSI command. scsi_adjust_queue_depth - change the queue depth on a SCSI device scsi_assign_lock - replace default host_lock with given lock scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host scsi_deactivate_tcq - turn off tag command queueing - scsi_delete_timer - cancel timer on a SCSI command. scsi_host_alloc - return a new scsi_host instance whose refcount==1 scsi_host_get - increments Scsi_Host instance's refcount scsi_host_put - decrements Scsi_Host instance's refcount (free if 0) @@ -457,27 +455,6 @@ struct scsi_device * scsi_add_device(struct Scsi_Host *shost, int scsi_add_host(struct Scsi_Host *shost, struct device * dev) -/** - * scsi_add_timer - (re-)start timer on a SCSI command. - * @scmd: pointer to scsi command instance - * @timeout: duration of timeout in "jiffies" - * @complete: pointer to function to call if timeout expires - * - * Returns nothing - * - * Might block: no - * - * Notes: Each scsi command has its own timer, and as it is added - * to the queue, we set up the timer. When the command completes, - * we cancel the timer. An LLD can use this function to change - * the existing timeout value. - * - * Defined in: drivers/scsi/scsi_error.c - **/ -void scsi_add_timer(struct scsi_cmnd *scmd, int timeout, - void (*complete)(struct scsi_cmnd *)) - - /** * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on @@ -565,24 +542,6 @@ void scsi_block_requests(struct Scsi_Host * shost) void scsi_deactivate_tcq(struct scsi_device *sdev, int depth) -/** - * scsi_delete_timer - cancel timer on a SCSI command. - * @scmd: pointer to scsi command instance - * - * Returns 1 if able to cancel timer else 0 (i.e. too late or already - * cancelled). - * - * Might block: no [may in the future if it invokes del_timer_sync()] - * - * Notes: All commands issued by upper levels already have a timeout - * associated with them. An LLD can use this function to cancel the - * timer. - * - * Defined in: drivers/scsi/scsi_error.c - **/ -int scsi_delete_timer(struct scsi_cmnd *scmd) - - /** * scsi_host_alloc - create a scsi host adapter instance and perform basic * initialization. diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index ebe74ccb518..ae28bcb7924 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -116,7 +116,6 @@ void scsi_add_timer(struct scsi_cmnd *scmd, int timeout, add_timer(&scmd->eh_timeout); } -EXPORT_SYMBOL(scsi_add_timer); /** * scsi_delete_timer - Delete/cancel timer for a given function. @@ -144,7 +143,6 @@ int scsi_delete_timer(struct scsi_cmnd *scmd) return rtn; } -EXPORT_SYMBOL(scsi_delete_timer); /** * scsi_times_out - Timeout function for normal scsi commands. diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index d30d7f4e63e..ee6de1768e5 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -63,6 +63,9 @@ extern int __init scsi_init_devinfo(void); extern void scsi_exit_devinfo(void); /* scsi_error.c */ +extern void scsi_add_timer(struct scsi_cmnd *, int, + void (*)(struct scsi_cmnd *)); +extern int scsi_delete_timer(struct scsi_cmnd *); extern void scsi_times_out(struct scsi_cmnd *cmd); extern int scsi_error_handler(void *host); extern int scsi_decide_disposition(struct scsi_cmnd *cmd); diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 80557f879e3..4b71095be68 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -27,9 +27,6 @@ struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ }; -extern void scsi_add_timer(struct scsi_cmnd *, int, - void (*)(struct scsi_cmnd *)); -extern int scsi_delete_timer(struct scsi_cmnd *); extern void scsi_report_bus_reset(struct Scsi_Host *, int); extern void scsi_report_device_reset(struct Scsi_Host *, int, int); extern int scsi_block_when_processing_errors(struct scsi_device *); -- cgit v1.2.3-70-g09d2 From 344babaa9d39b10b85cadec4e5335d43b52b4ec0 Mon Sep 17 00:00:00 2001 From: Jeff Garzik <jgarzik@pobox.com> Date: Wed, 7 Sep 2005 01:15:17 -0400 Subject: [kernel-doc] fix various DocBook build problems/warnings Most serious is fixing include/sound/pcm.h, which breaks the DocBook build. The other stuff is just filling in things that cause warnings. --- Documentation/DocBook/mcabook.tmpl | 2 +- drivers/net/wan/syncppp.c | 1 + drivers/scsi/libata-core.c | 4 ++-- include/sound/pcm.h | 2 +- kernel/sched.c | 1 + 5 files changed, 6 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/mcabook.tmpl b/Documentation/DocBook/mcabook.tmpl index 4367f4642f3..42a760cd746 100644 --- a/Documentation/DocBook/mcabook.tmpl +++ b/Documentation/DocBook/mcabook.tmpl @@ -96,7 +96,7 @@ <chapter id="pubfunctions"> <title>Public Functions Provided</title> -!Earch/i386/kernel/mca.c +!Edrivers/mca/mca-legacy.c </chapter> <chapter id="dmafunctions"> diff --git a/drivers/net/wan/syncppp.c b/drivers/net/wan/syncppp.c index f58c794a963..b56a7b516d2 100644 --- a/drivers/net/wan/syncppp.c +++ b/drivers/net/wan/syncppp.c @@ -1440,6 +1440,7 @@ static void sppp_print_bytes (u_char *p, u16 len) * @skb: The buffer to process * @dev: The device it arrived on * @p: Unused + * @orig_dev: Unused * * Protocol glue. This drives the deferred processing mode the poorer * cards use. This can be called directly by cards that do not have diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 9fb9814525a..5cc53cd9323 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2531,7 +2531,7 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words) * @ap: port to read/write * @buf: data buffer * @buflen: buffer length - * @do_write: read/write + * @write_data: read/write * * Transfer data from/to the device data register by MMIO. * @@ -2577,7 +2577,7 @@ static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf, * @ap: port to read/write * @buf: data buffer * @buflen: buffer length - * @do_write: read/write + * @write_data: read/write * * Transfer data from/to the device data register by PIO. * diff --git a/include/sound/pcm.h b/include/sound/pcm.h index fa23ebfb857..389e8ebe9c1 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -903,7 +903,7 @@ int snd_pcm_format_unsigned(snd_pcm_format_t format); int snd_pcm_format_linear(snd_pcm_format_t format); int snd_pcm_format_little_endian(snd_pcm_format_t format); int snd_pcm_format_big_endian(snd_pcm_format_t format); -/** +/* * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian * @format: the format to check * diff --git a/kernel/sched.c b/kernel/sched.c index 5f889d0cbfc..f41fa94d207 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1478,6 +1478,7 @@ static inline void prepare_task_switch(runqueue_t *rq, task_t *next) /** * finish_task_switch - clean up after a task-switch + * @rq: runqueue associated with task-switch * @prev: the thread we just switched away from. * * finish_task_switch must be called after the context switch, paired -- cgit v1.2.3-70-g09d2 From d7ae79c72d072e3208c18ff2dc402a69229b7b1b Mon Sep 17 00:00:00 2001 From: Pavel Machek <pavel@suse.cz> Date: Tue, 6 Sep 2005 15:16:21 -0700 Subject: [PATCH] swsusp: update documentation This updates documentation a bit (mostly removing obsolete stuff), and marks swsusp as no longer experimental in config. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/power/swsusp.txt | 101 +++++++++++++++++++++++------------------ Documentation/power/video.txt | 1 + kernel/power/Kconfig | 2 +- 3 files changed, 58 insertions(+), 46 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt index ddf907fbcc0..b0d50840788 100644 --- a/Documentation/power/swsusp.txt +++ b/Documentation/power/swsusp.txt @@ -1,22 +1,20 @@ -From kernel/suspend.c: +Some warnings, first. * BIG FAT WARNING ********************************************************* * - * If you have unsupported (*) devices using DMA... - * ...say goodbye to your data. - * * If you touch anything on disk between suspend and resume... * ...kiss your data goodbye. * - * If your disk driver does not support suspend... (IDE does) - * ...you'd better find out how to get along - * without your data. - * - * If you change kernel command line between suspend and resume... - * ...prepare for nasty fsck or worse. + * If you do resume from initrd after your filesystems are mounted... + * ...bye bye root partition. + * [this is actually same case as above] * - * If you change your hardware while system is suspended... - * ...well, it was not good idea. + * If you have unsupported (*) devices using DMA, you may have some + * problems. If your disk driver does not support suspend... (IDE does), + * it may cause some problems, too. If you change kernel command line + * between suspend and resume, it may do something wrong. If you change + * your hardware while system is suspended... well, it was not good idea; + * but it will probably only crash. * * (*) suspend/resume support is needed to make it safe. @@ -30,6 +28,13 @@ echo shutdown > /sys/power/disk; echo disk > /sys/power/state echo platform > /sys/power/disk; echo disk > /sys/power/state +Encrypted suspend image: +------------------------ +If you want to store your suspend image encrypted with a temporary +key to prevent data gathering after resume you must compile +crypto and the aes algorithm into the kernel - modules won't work +as they cannot be loaded at resume time. + Article about goals and implementation of Software Suspend for Linux ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -85,11 +90,6 @@ resume. You have your server on UPS. Power died, and UPS is indicating 30 seconds to failure. What do you do? Suspend to disk. -Ethernet card in your server died. You want to replace it. Your -server is not hotplug capable. What do you do? Suspend to disk, -replace ethernet card, resume. If you are fast your users will not -even see broken connections. - Q: Maybe I'm missing something, but why don't the regular I/O paths work? @@ -117,31 +117,6 @@ Q: Does linux support ACPI S4? A: Yes. That's what echo platform > /sys/power/disk does. -Q: My machine doesn't work with ACPI. How can I use swsusp than ? - -A: Do a reboot() syscall with right parameters. Warning: glibc gets in -its way, so check with strace: - -reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, 0xd000fce2) - -(Thanks to Peter Osterlund:) - -#include <unistd.h> -#include <syscall.h> - -#define LINUX_REBOOT_MAGIC1 0xfee1dead -#define LINUX_REBOOT_MAGIC2 672274793 -#define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2 - -int main() -{ - syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, - LINUX_REBOOT_CMD_SW_SUSPEND, 0); - return 0; -} - -Also /sys/ interface should be still present. - Q: What is 'suspend2'? A: suspend2 is 'Software Suspend 2', a forked implementation of @@ -312,9 +287,45 @@ system is shut down or suspended. Additionally use the encrypted suspend image to prevent sensitive data from being stolen after resume. -Q: Why we cannot suspend to a swap file? +Q: Why can't we suspend to a swap file? A: Because accessing swap file needs the filesystem mounted, and filesystem might do something wrong (like replaying the journal) -during mount. [Probably could be solved by modifying every filesystem -to support some kind of "really read-only!" option. Patches welcome.] +during mount. + +There are few ways to get that fixed: + +1) Probably could be solved by modifying every filesystem to support +some kind of "really read-only!" option. Patches welcome. + +2) suspend2 gets around that by storing absolute positions in on-disk +image (and blocksize), with resume parameter pointing directly to +suspend header. + +Q: Is there a maximum system RAM size that is supported by swsusp? + +A: It should work okay with highmem. + +Q: Does swsusp (to disk) use only one swap partition or can it use +multiple swap partitions (aggregate them into one logical space)? + +A: Only one swap partition, sorry. + +Q: If my application(s) causes lots of memory & swap space to be used +(over half of the total system RAM), is it correct that it is likely +to be useless to try to suspend to disk while that app is running? + +A: No, it should work okay, as long as your app does not mlock() +it. Just prepare big enough swap partition. + +Q: What information is usefull for debugging suspend-to-disk problems? + +A: Well, last messages on the screen are always useful. If something +is broken, it is usually some kernel driver, therefore trying with as +little as possible modules loaded helps a lot. I also prefer people to +suspend from console, preferably without X running. Booting with +init=/bin/bash, then swapon and starting suspend sequence manually +usually does the trick. Then it is good idea to try with latest +vanilla kernel. + + diff --git a/Documentation/power/video.txt b/Documentation/power/video.txt index 1a44e8acb54..526d6dd267e 100644 --- a/Documentation/power/video.txt +++ b/Documentation/power/video.txt @@ -120,6 +120,7 @@ IBM ThinkPad T42p (2373-GTG) s3_bios (2) IBM TP X20 ??? (*) IBM TP X30 s3_bios (2) IBM TP X31 / Type 2672-XXH none (1), use radeontool (http://fdd.com/software/radeon/) to turn off backlight. +IBM TP X32 none (1), but backlight is on and video is trashed after long suspend IBM Thinkpad X40 Type 2371-7JG s3_bios,s3_mode (4) Medion MD4220 ??? (*) Samsung P35 vbetool needed (6) diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 917066a5767..c14cd999118 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -28,7 +28,7 @@ config PM_DEBUG config SOFTWARE_SUSPEND bool "Software Suspend" - depends on EXPERIMENTAL && PM && SWAP && ((X86 && SMP) || ((FVR || PPC32 || X86) && !SMP)) + depends on PM && SWAP && (X86 || ((FVR || PPC32) && !SMP)) ---help--- Enable the possibility of suspending the machine. It doesn't need APM. -- cgit v1.2.3-70-g09d2 From e82894f84dbba130ab46c97748c03647f8204f92 Mon Sep 17 00:00:00 2001 From: Tom Zanussi <zanussi@us.ibm.com> Date: Tue, 6 Sep 2005 15:16:30 -0700 Subject: [PATCH] relayfs Here's the latest version of relayfs, against linux-2.6.11-mm2. I'm hoping you'll consider putting this version back into your tree - the previous rounds of comment seem to have shaken out all the API issues and the number of comments on the code itself have also steadily dwindled. This patch is essentially the same as the relayfs redux part 5 patch, with some minor changes based on reviewer comments. Thanks again to Pekka Enberg for those. The patch size without documentation is now a little smaller at just over 40k. Here's a detailed list of the changes: - removed the attribute_flags in relay open and changed it to a boolean specifying either overwrite or no-overwrite mode, and removed everything referencing the attribute flags. - added a check for NULL names in relayfs_create_entry() - got rid of the unnecessary multiple labels in relay_create_buf() - some minor simplification of relay_alloc_buf() which got rid of a couple params - updated the Documentation In addition, this version (through code contained in the relay-apps tarball linked to below, not as part of the relayfs patch) tries to make it as easy as possible to create the cooperating kernel/user pieces of a typical and common type of logging application, one where kernel logging is kicked off when a user space data collection app starts and stops when the collection app exits, with the data being automatically logged to disk in between. To create this type of application, you basically just include a header file (relay-app.h, included in the relay-apps tarball) in your kernel module, define a couple of callbacks and call an initialization function, and on the user side call a single function that sets up and continuously monitors the buffers, and writes data to files as it becomes available. Channels are created when the collection app is started and destroyed when it exits, not when the kernel module is inserted, so different channel buffer sizes can be specified for each separate run via command-line options. See the README in the relay-apps tarball for details. Also included in the relay-apps tarball are a couple examples demonstrating how you can use this to create quick and dirty kernel logging/debugging applications. They are: - tprintk, short for 'tee printk', which temporarily puts a kprobe on printk() and writes a duplicate stream of printk output to a relayfs channel. This could be used anywhere there's printk() debugging code in the kernel which you'd like to exercise, but would rather not have your system logs cluttered with debugging junk. You'd probably want to kill klogd while you do this, otherwise there wouldn't be much point (since putting a kprobe on printk() doesn't change the output of printk()). I've used this method to temporarily divert the packet logging output of the iptables LOG target from the system logs to relayfs files instead, for instance. - klog, which just provides a printk-like formatted logging function on top of relayfs. Again, you can use this to keep stuff out of your system logs if used in place of printk. The example applications can be found here: http://prdownloads.sourceforge.net/dprobes/relay-apps.tar.gz?download From: Christoph Hellwig <hch@lst.de> avoid lookup_hash usage in relayfs Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/filesystems/relayfs.txt | 362 ++++++++++++++++++++ fs/Kconfig | 12 + fs/Makefile | 1 + fs/relayfs/Makefile | 4 + fs/relayfs/buffers.c | 189 +++++++++++ fs/relayfs/buffers.h | 12 + fs/relayfs/inode.c | 609 ++++++++++++++++++++++++++++++++++ fs/relayfs/relay.c | 431 ++++++++++++++++++++++++ fs/relayfs/relay.h | 12 + include/linux/relayfs_fs.h | 255 ++++++++++++++ 10 files changed, 1887 insertions(+) create mode 100644 Documentation/filesystems/relayfs.txt create mode 100644 fs/relayfs/Makefile create mode 100644 fs/relayfs/buffers.c create mode 100644 fs/relayfs/buffers.h create mode 100644 fs/relayfs/inode.c create mode 100644 fs/relayfs/relay.c create mode 100644 fs/relayfs/relay.h create mode 100644 include/linux/relayfs_fs.h (limited to 'Documentation') diff --git a/Documentation/filesystems/relayfs.txt b/Documentation/filesystems/relayfs.txt new file mode 100644 index 00000000000..d24e1b0d4f3 --- /dev/null +++ b/Documentation/filesystems/relayfs.txt @@ -0,0 +1,362 @@ + +relayfs - a high-speed data relay filesystem +============================================ + +relayfs is a filesystem designed to provide an efficient mechanism for +tools and facilities to relay large and potentially sustained streams +of data from kernel space to user space. + +The main abstraction of relayfs is the 'channel'. A channel consists +of a set of per-cpu kernel buffers each represented by a file in the +relayfs filesystem. Kernel clients write into a channel using +efficient write functions which automatically log to the current cpu's +channel buffer. User space applications mmap() the per-cpu files and +retrieve the data as it becomes available. + +The format of the data logged into the channel buffers is completely +up to the relayfs client; relayfs does however provide hooks which +allow clients to impose some stucture on the buffer data. Nor does +relayfs implement any form of data filtering - this also is left to +the client. The purpose is to keep relayfs as simple as possible. + +This document provides an overview of the relayfs API. The details of +the function parameters are documented along with the functions in the +filesystem code - please see that for details. + +Semantics +========= + +Each relayfs channel has one buffer per CPU, each buffer has one or +more sub-buffers. Messages are written to the first sub-buffer until +it is too full to contain a new message, in which case it it is +written to the next (if available). Messages are never split across +sub-buffers. At this point, userspace can be notified so it empties +the first sub-buffer, while the kernel continues writing to the next. + +When notified that a sub-buffer is full, the kernel knows how many +bytes of it are padding i.e. unused. Userspace can use this knowledge +to copy only valid data. + +After copying it, userspace can notify the kernel that a sub-buffer +has been consumed. + +relayfs can operate in a mode where it will overwrite data not yet +collected by userspace, and not wait for it to consume it. + +relayfs itself does not provide for communication of such data between +userspace and kernel, allowing the kernel side to remain simple and not +impose a single interface on userspace. It does provide a separate +helper though, described below. + +klog, relay-app & librelay +========================== + +relayfs itself is ready to use, but to make things easier, two +additional systems are provided. klog is a simple wrapper to make +writing formatted text or raw data to a channel simpler, regardless of +whether a channel to write into exists or not, or whether relayfs is +compiled into the kernel or is configured as a module. relay-app is +the kernel counterpart of userspace librelay.c, combined these two +files provide glue to easily stream data to disk, without having to +bother with housekeeping. klog and relay-app can be used together, +with klog providing high-level logging functions to the kernel and +relay-app taking care of kernel-user control and disk-logging chores. + +It is possible to use relayfs without relay-app & librelay, but you'll +have to implement communication between userspace and kernel, allowing +both to convey the state of buffers (full, empty, amount of padding). + +klog, relay-app and librelay can be found in the relay-apps tarball on +http://relayfs.sourceforge.net + +The relayfs user space API +========================== + +relayfs implements basic file operations for user space access to +relayfs channel buffer data. Here are the file operations that are +available and some comments regarding their behavior: + +open() enables user to open an _existing_ buffer. + +mmap() results in channel buffer being mapped into the caller's + memory space. Note that you can't do a partial mmap - you must + map the entire file, which is NRBUF * SUBBUFSIZE. + +read() read the contents of a channel buffer. The bytes read are + 'consumed' by the reader i.e. they won't be available again + to subsequent reads. If the channel is being used in + no-overwrite mode (the default), it can be read at any time + even if there's an active kernel writer. If the channel is + being used in overwrite mode and there are active channel + writers, results may be unpredictable - users should make + sure that all logging to the channel has ended before using + read() with overwrite mode. + +poll() POLLIN/POLLRDNORM/POLLERR supported. User applications are + notified when sub-buffer boundaries are crossed. + +close() decrements the channel buffer's refcount. When the refcount + reaches 0 i.e. when no process or kernel client has the buffer + open, the channel buffer is freed. + + +In order for a user application to make use of relayfs files, the +relayfs filesystem must be mounted. For example, + + mount -t relayfs relayfs /mnt/relay + +NOTE: relayfs doesn't need to be mounted for kernel clients to create + or use channels - it only needs to be mounted when user space + applications need access to the buffer data. + + +The relayfs kernel API +====================== + +Here's a summary of the API relayfs provides to in-kernel clients: + + + channel management functions: + + relay_open(base_filename, parent, subbuf_size, n_subbufs, + callbacks) + relay_close(chan) + relay_flush(chan) + relay_reset(chan) + relayfs_create_dir(name, parent) + relayfs_remove_dir(dentry) + + channel management typically called on instigation of userspace: + + relay_subbufs_consumed(chan, cpu, subbufs_consumed) + + write functions: + + relay_write(chan, data, length) + __relay_write(chan, data, length) + relay_reserve(chan, length) + + callbacks: + + subbuf_start(buf, subbuf, prev_subbuf, prev_padding) + buf_mapped(buf, filp) + buf_unmapped(buf, filp) + + helper functions: + + relay_buf_full(buf) + subbuf_start_reserve(buf, length) + + +Creating a channel +------------------ + +relay_open() is used to create a channel, along with its per-cpu +channel buffers. Each channel buffer will have an associated file +created for it in the relayfs filesystem, which can be opened and +mmapped from user space if desired. The files are named +basename0...basenameN-1 where N is the number of online cpus, and by +default will be created in the root of the filesystem. If you want a +directory structure to contain your relayfs files, you can create it +with relayfs_create_dir() and pass the parent directory to +relay_open(). Clients are responsible for cleaning up any directory +structure they create when the channel is closed - use +relayfs_remove_dir() for that. + +The total size of each per-cpu buffer is calculated by multiplying the +number of sub-buffers by the sub-buffer size passed into relay_open(). +The idea behind sub-buffers is that they're basically an extension of +double-buffering to N buffers, and they also allow applications to +easily implement random-access-on-buffer-boundary schemes, which can +be important for some high-volume applications. The number and size +of sub-buffers is completely dependent on the application and even for +the same application, different conditions will warrant different +values for these parameters at different times. Typically, the right +values to use are best decided after some experimentation; in general, +though, it's safe to assume that having only 1 sub-buffer is a bad +idea - you're guaranteed to either overwrite data or lose events +depending on the channel mode being used. + +Channel 'modes' +--------------- + +relayfs channels can be used in either of two modes - 'overwrite' or +'no-overwrite'. The mode is entirely determined by the implementation +of the subbuf_start() callback, as described below. In 'overwrite' +mode, also known as 'flight recorder' mode, writes continuously cycle +around the buffer and will never fail, but will unconditionally +overwrite old data regardless of whether it's actually been consumed. +In no-overwrite mode, writes will fail i.e. data will be lost, if the +number of unconsumed sub-buffers equals the total number of +sub-buffers in the channel. It should be clear that if there is no +consumer or if the consumer can't consume sub-buffers fast enought, +data will be lost in either case; the only difference is whether data +is lost from the beginning or the end of a buffer. + +As explained above, a relayfs channel is made of up one or more +per-cpu channel buffers, each implemented as a circular buffer +subdivided into one or more sub-buffers. Messages are written into +the current sub-buffer of the channel's current per-cpu buffer via the +write functions described below. Whenever a message can't fit into +the current sub-buffer, because there's no room left for it, the +client is notified via the subbuf_start() callback that a switch to a +new sub-buffer is about to occur. The client uses this callback to 1) +initialize the next sub-buffer if appropriate 2) finalize the previous +sub-buffer if appropriate and 3) return a boolean value indicating +whether or not to actually go ahead with the sub-buffer switch. + +To implement 'no-overwrite' mode, the userspace client would provide +an implementation of the subbuf_start() callback something like the +following: + +static int subbuf_start(struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + unsigned int prev_padding) +{ + if (prev_subbuf) + *((unsigned *)prev_subbuf) = prev_padding; + + if (relay_buf_full(buf)) + return 0; + + subbuf_start_reserve(buf, sizeof(unsigned int)); + + return 1; +} + +If the current buffer is full i.e. all sub-buffers remain unconsumed, +the callback returns 0 to indicate that the buffer switch should not +occur yet i.e. until the consumer has had a chance to read the current +set of ready sub-buffers. For the relay_buf_full() function to make +sense, the consumer is reponsible for notifying relayfs when +sub-buffers have been consumed via relay_subbufs_consumed(). Any +subsequent attempts to write into the buffer will again invoke the +subbuf_start() callback with the same parameters; only when the +consumer has consumed one or more of the ready sub-buffers will +relay_buf_full() return 0, in which case the buffer switch can +continue. + +The implementation of the subbuf_start() callback for 'overwrite' mode +would be very similar: + +static int subbuf_start(struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + unsigned int prev_padding) +{ + if (prev_subbuf) + *((unsigned *)prev_subbuf) = prev_padding; + + subbuf_start_reserve(buf, sizeof(unsigned int)); + + return 1; +} + +In this case, the relay_buf_full() check is meaningless and the +callback always returns 1, causing the buffer switch to occur +unconditionally. It's also meaningless for the client to use the +relay_subbufs_consumed() function in this mode, as it's never +consulted. + +The default subbuf_start() implementation, used if the client doesn't +define any callbacks, or doesn't define the subbuf_start() callback, +implements the simplest possible 'no-overwrite' mode i.e. it does +nothing but return 0. + +Header information can be reserved at the beginning of each sub-buffer +by calling the subbuf_start_reserve() helper function from within the +subbuf_start() callback. This reserved area can be used to store +whatever information the client wants. In the example above, room is +reserved in each sub-buffer to store the padding count for that +sub-buffer. This is filled in for the previous sub-buffer in the +subbuf_start() implementation; the padding value for the previous +sub-buffer is passed into the subbuf_start() callback along with a +pointer to the previous sub-buffer, since the padding value isn't +known until a sub-buffer is filled. The subbuf_start() callback is +also called for the first sub-buffer when the channel is opened, to +give the client a chance to reserve space in it. In this case the +previous sub-buffer pointer passed into the callback will be NULL, so +the client should check the value of the prev_subbuf pointer before +writing into the previous sub-buffer. + +Writing to a channel +-------------------- + +kernel clients write data into the current cpu's channel buffer using +relay_write() or __relay_write(). relay_write() is the main logging +function - it uses local_irqsave() to protect the buffer and should be +used if you might be logging from interrupt context. If you know +you'll never be logging from interrupt context, you can use +__relay_write(), which only disables preemption. These functions +don't return a value, so you can't determine whether or not they +failed - the assumption is that you wouldn't want to check a return +value in the fast logging path anyway, and that they'll always succeed +unless the buffer is full and no-overwrite mode is being used, in +which case you can detect a failed write in the subbuf_start() +callback by calling the relay_buf_full() helper function. + +relay_reserve() is used to reserve a slot in a channel buffer which +can be written to later. This would typically be used in applications +that need to write directly into a channel buffer without having to +stage data in a temporary buffer beforehand. Because the actual write +may not happen immediately after the slot is reserved, applications +using relay_reserve() can keep a count of the number of bytes actually +written, either in space reserved in the sub-buffers themselves or as +a separate array. See the 'reserve' example in the relay-apps tarball +at http://relayfs.sourceforge.net for an example of how this can be +done. Because the write is under control of the client and is +separated from the reserve, relay_reserve() doesn't protect the buffer +at all - it's up to the client to provide the appropriate +synchronization when using relay_reserve(). + +Closing a channel +----------------- + +The client calls relay_close() when it's finished using the channel. +The channel and its associated buffers are destroyed when there are no +longer any references to any of the channel buffers. relay_flush() +forces a sub-buffer switch on all the channel buffers, and can be used +to finalize and process the last sub-buffers before the channel is +closed. + +Misc +---- + +Some applications may want to keep a channel around and re-use it +rather than open and close a new channel for each use. relay_reset() +can be used for this purpose - it resets a channel to its initial +state without reallocating channel buffer memory or destroying +existing mappings. It should however only be called when it's safe to +do so i.e. when the channel isn't currently being written to. + +Finally, there are a couple of utility callbacks that can be used for +different purposes. buf_mapped() is called whenever a channel buffer +is mmapped from user space and buf_unmapped() is called when it's +unmapped. The client can use this notification to trigger actions +within the kernel application, such as enabling/disabling logging to +the channel. + + +Resources +========= + +For news, example code, mailing list, etc. see the relayfs homepage: + + http://relayfs.sourceforge.net + + +Credits +======= + +The ideas and specs for relayfs came about as a result of discussions +on tracing involving the following: + +Michel Dagenais <michel.dagenais@polymtl.ca> +Richard Moore <richardj_moore@uk.ibm.com> +Bob Wisniewski <bob@watson.ibm.com> +Karim Yaghmour <karim@opersys.com> +Tom Zanussi <zanussi@us.ibm.com> + +Also thanks to Hubertus Franke for a lot of useful suggestions and bug +reports. diff --git a/fs/Kconfig b/fs/Kconfig index ed78d24ee42..740d6ff0367 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -816,6 +816,18 @@ config RAMFS To compile this as a module, choose M here: the module will be called ramfs. +config RELAYFS_FS + tristate "Relayfs file system support" + ---help--- + Relayfs is a high-speed data relay filesystem designed to provide + an efficient mechanism for tools and facilities to relay large + amounts of data from kernel space to user space. + + To compile this code as a module, choose M here: the module will be + called relayfs. + + If unsure, say N. + endmenu menu "Miscellaneous filesystems" diff --git a/fs/Makefile b/fs/Makefile index cf95eb894fd..15158309dee 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_AUTOFS_FS) += autofs/ obj-$(CONFIG_AUTOFS4_FS) += autofs4/ obj-$(CONFIG_ADFS_FS) += adfs/ obj-$(CONFIG_UDF_FS) += udf/ +obj-$(CONFIG_RELAYFS_FS) += relayfs/ obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/ obj-$(CONFIG_JFS_FS) += jfs/ obj-$(CONFIG_XFS_FS) += xfs/ diff --git a/fs/relayfs/Makefile b/fs/relayfs/Makefile new file mode 100644 index 00000000000..e76e182cdb3 --- /dev/null +++ b/fs/relayfs/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_RELAYFS_FS) += relayfs.o + +relayfs-y := relay.o inode.o buffers.o + diff --git a/fs/relayfs/buffers.c b/fs/relayfs/buffers.c new file mode 100644 index 00000000000..2aa8e271999 --- /dev/null +++ b/fs/relayfs/buffers.c @@ -0,0 +1,189 @@ +/* + * RelayFS buffer management code. + * + * Copyright (C) 2002-2005 - Tom Zanussi (zanussi@us.ibm.com), IBM Corp + * Copyright (C) 1999-2005 - Karim Yaghmour (karim@opersys.com) + * + * This file is released under the GPL. + */ + +#include <linux/module.h> +#include <linux/vmalloc.h> +#include <linux/mm.h> +#include <linux/relayfs_fs.h> +#include "relay.h" +#include "buffers.h" + +/* + * close() vm_op implementation for relayfs file mapping. + */ +static void relay_file_mmap_close(struct vm_area_struct *vma) +{ + struct rchan_buf *buf = vma->vm_private_data; + buf->chan->cb->buf_unmapped(buf, vma->vm_file); +} + +/* + * nopage() vm_op implementation for relayfs file mapping. + */ +static struct page *relay_buf_nopage(struct vm_area_struct *vma, + unsigned long address, + int *type) +{ + struct page *page; + struct rchan_buf *buf = vma->vm_private_data; + unsigned long offset = address - vma->vm_start; + + if (address > vma->vm_end) + return NOPAGE_SIGBUS; /* Disallow mremap */ + if (!buf) + return NOPAGE_OOM; + + page = vmalloc_to_page(buf->start + offset); + if (!page) + return NOPAGE_OOM; + get_page(page); + + if (type) + *type = VM_FAULT_MINOR; + + return page; +} + +/* + * vm_ops for relay file mappings. + */ +static struct vm_operations_struct relay_file_mmap_ops = { + .nopage = relay_buf_nopage, + .close = relay_file_mmap_close, +}; + +/** + * relay_mmap_buf: - mmap channel buffer to process address space + * @buf: relay channel buffer + * @vma: vm_area_struct describing memory to be mapped + * + * Returns 0 if ok, negative on error + * + * Caller should already have grabbed mmap_sem. + */ +int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) +{ + unsigned long length = vma->vm_end - vma->vm_start; + struct file *filp = vma->vm_file; + + if (!buf) + return -EBADF; + + if (length != (unsigned long)buf->chan->alloc_size) + return -EINVAL; + + vma->vm_ops = &relay_file_mmap_ops; + vma->vm_private_data = buf; + buf->chan->cb->buf_mapped(buf, filp); + + return 0; +} + +/** + * relay_alloc_buf - allocate a channel buffer + * @buf: the buffer struct + * @size: total size of the buffer + * + * Returns a pointer to the resulting buffer, NULL if unsuccessful + */ +static void *relay_alloc_buf(struct rchan_buf *buf, unsigned long size) +{ + void *mem; + unsigned int i, j, n_pages; + + size = PAGE_ALIGN(size); + n_pages = size >> PAGE_SHIFT; + + buf->page_array = kcalloc(n_pages, sizeof(struct page *), GFP_KERNEL); + if (!buf->page_array) + return NULL; + + for (i = 0; i < n_pages; i++) { + buf->page_array[i] = alloc_page(GFP_KERNEL); + if (unlikely(!buf->page_array[i])) + goto depopulate; + } + mem = vmap(buf->page_array, n_pages, GFP_KERNEL, PAGE_KERNEL); + if (!mem) + goto depopulate; + + memset(mem, 0, size); + buf->page_count = n_pages; + return mem; + +depopulate: + for (j = 0; j < i; j++) + __free_page(buf->page_array[j]); + kfree(buf->page_array); + return NULL; +} + +/** + * relay_create_buf - allocate and initialize a channel buffer + * @alloc_size: size of the buffer to allocate + * @n_subbufs: number of sub-buffers in the channel + * + * Returns channel buffer if successful, NULL otherwise + */ +struct rchan_buf *relay_create_buf(struct rchan *chan) +{ + struct rchan_buf *buf = kcalloc(1, sizeof(struct rchan_buf), GFP_KERNEL); + if (!buf) + return NULL; + + buf->padding = kmalloc(chan->n_subbufs * sizeof(size_t *), GFP_KERNEL); + if (!buf->padding) + goto free_buf; + + buf->start = relay_alloc_buf(buf, chan->alloc_size); + if (!buf->start) + goto free_buf; + + buf->chan = chan; + kref_get(&buf->chan->kref); + return buf; + +free_buf: + kfree(buf->padding); + kfree(buf); + return NULL; +} + +/** + * relay_destroy_buf - destroy an rchan_buf struct and associated buffer + * @buf: the buffer struct + */ +void relay_destroy_buf(struct rchan_buf *buf) +{ + struct rchan *chan = buf->chan; + unsigned int i; + + if (likely(buf->start)) { + vunmap(buf->start); + for (i = 0; i < buf->page_count; i++) + __free_page(buf->page_array[i]); + kfree(buf->page_array); + } + kfree(buf->padding); + kfree(buf); + kref_put(&chan->kref, relay_destroy_channel); +} + +/** + * relay_remove_buf - remove a channel buffer + * + * Removes the file from the relayfs fileystem, which also frees the + * rchan_buf_struct and the channel buffer. Should only be called from + * kref_put(). + */ +void relay_remove_buf(struct kref *kref) +{ + struct rchan_buf *buf = container_of(kref, struct rchan_buf, kref); + relayfs_remove(buf->dentry); +} diff --git a/fs/relayfs/buffers.h b/fs/relayfs/buffers.h new file mode 100644 index 00000000000..37a12493f64 --- /dev/null +++ b/fs/relayfs/buffers.h @@ -0,0 +1,12 @@ +#ifndef _BUFFERS_H +#define _BUFFERS_H + +/* This inspired by rtai/shmem */ +#define FIX_SIZE(x) (((x) - 1) & PAGE_MASK) + PAGE_SIZE + +extern int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma); +extern struct rchan_buf *relay_create_buf(struct rchan *chan); +extern void relay_destroy_buf(struct rchan_buf *buf); +extern void relay_remove_buf(struct kref *kref); + +#endif/* _BUFFERS_H */ diff --git a/fs/relayfs/inode.c b/fs/relayfs/inode.c new file mode 100644 index 00000000000..0f7f88d067a --- /dev/null +++ b/fs/relayfs/inode.c @@ -0,0 +1,609 @@ +/* + * VFS-related code for RelayFS, a high-speed data relay filesystem. + * + * Copyright (C) 2003-2005 - Tom Zanussi <zanussi@us.ibm.com>, IBM Corp + * Copyright (C) 2003-2005 - Karim Yaghmour <karim@opersys.com> + * + * Based on ramfs, Copyright (C) 2002 - Linus Torvalds + * + * This file is released under the GPL. + */ + +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/mount.h> +#include <linux/pagemap.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/backing-dev.h> +#include <linux/namei.h> +#include <linux/poll.h> +#include <linux/relayfs_fs.h> +#include "relay.h" +#include "buffers.h" + +#define RELAYFS_MAGIC 0xF0B4A981 + +static struct vfsmount * relayfs_mount; +static int relayfs_mount_count; +static kmem_cache_t * relayfs_inode_cachep; + +static struct backing_dev_info relayfs_backing_dev_info = { + .ra_pages = 0, /* No readahead */ + .capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK, +}; + +static struct inode *relayfs_get_inode(struct super_block *sb, int mode, + struct rchan *chan) +{ + struct rchan_buf *buf = NULL; + struct inode *inode; + + if (S_ISREG(mode)) { + BUG_ON(!chan); + buf = relay_create_buf(chan); + if (!buf) + return NULL; + } + + inode = new_inode(sb); + if (!inode) { + relay_destroy_buf(buf); + return NULL; + } + + inode->i_mode = mode; + inode->i_uid = 0; + inode->i_gid = 0; + inode->i_blksize = PAGE_CACHE_SIZE; + inode->i_blocks = 0; + inode->i_mapping->backing_dev_info = &relayfs_backing_dev_info; + inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; + switch (mode & S_IFMT) { + case S_IFREG: + inode->i_fop = &relayfs_file_operations; + RELAYFS_I(inode)->buf = buf; + break; + case S_IFDIR: + inode->i_op = &simple_dir_inode_operations; + inode->i_fop = &simple_dir_operations; + + /* directory inodes start off with i_nlink == 2 (for "." entry) */ + inode->i_nlink++; + break; + default: + break; + } + + return inode; +} + +/** + * relayfs_create_entry - create a relayfs directory or file + * @name: the name of the file to create + * @parent: parent directory + * @mode: mode + * @chan: relay channel associated with the file + * + * Returns the new dentry, NULL on failure + * + * Creates a file or directory with the specifed permissions. + */ +static struct dentry *relayfs_create_entry(const char *name, + struct dentry *parent, + int mode, + struct rchan *chan) +{ + struct dentry *d; + struct inode *inode; + int error = 0; + + BUG_ON(!name || !(S_ISREG(mode) || S_ISDIR(mode))); + + error = simple_pin_fs("relayfs", &relayfs_mount, &relayfs_mount_count); + if (error) { + printk(KERN_ERR "Couldn't mount relayfs: errcode %d\n", error); + return NULL; + } + + if (!parent && relayfs_mount && relayfs_mount->mnt_sb) + parent = relayfs_mount->mnt_sb->s_root; + + if (!parent) { + simple_release_fs(&relayfs_mount, &relayfs_mount_count); + return NULL; + } + + parent = dget(parent); + down(&parent->d_inode->i_sem); + d = lookup_one_len(name, parent, strlen(name)); + if (IS_ERR(d)) { + d = NULL; + goto release_mount; + } + + if (d->d_inode) { + d = NULL; + goto release_mount; + } + + inode = relayfs_get_inode(parent->d_inode->i_sb, mode, chan); + if (!inode) { + d = NULL; + goto release_mount; + } + + d_instantiate(d, inode); + dget(d); /* Extra count - pin the dentry in core */ + + if (S_ISDIR(mode)) + parent->d_inode->i_nlink++; + + goto exit; + +release_mount: + simple_release_fs(&relayfs_mount, &relayfs_mount_count); + +exit: + up(&parent->d_inode->i_sem); + dput(parent); + return d; +} + +/** + * relayfs_create_file - create a file in the relay filesystem + * @name: the name of the file to create + * @parent: parent directory + * @mode: mode, if not specied the default perms are used + * @chan: channel associated with the file + * + * Returns file dentry if successful, NULL otherwise. + * + * The file will be created user r on behalf of current user. + */ +struct dentry *relayfs_create_file(const char *name, struct dentry *parent, + int mode, struct rchan *chan) +{ + if (!mode) + mode = S_IRUSR; + mode = (mode & S_IALLUGO) | S_IFREG; + + return relayfs_create_entry(name, parent, mode, chan); +} + +/** + * relayfs_create_dir - create a directory in the relay filesystem + * @name: the name of the directory to create + * @parent: parent directory, NULL if parent should be fs root + * + * Returns directory dentry if successful, NULL otherwise. + * + * The directory will be created world rwx on behalf of current user. + */ +struct dentry *relayfs_create_dir(const char *name, struct dentry *parent) +{ + int mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; + return relayfs_create_entry(name, parent, mode, NULL); +} + +/** + * relayfs_remove - remove a file or directory in the relay filesystem + * @dentry: file or directory dentry + * + * Returns 0 if successful, negative otherwise. + */ +int relayfs_remove(struct dentry *dentry) +{ + struct dentry *parent; + int error = 0; + + if (!dentry) + return -EINVAL; + parent = dentry->d_parent; + if (!parent) + return -EINVAL; + + parent = dget(parent); + down(&parent->d_inode->i_sem); + if (dentry->d_inode) { + if (S_ISDIR(dentry->d_inode->i_mode)) + error = simple_rmdir(parent->d_inode, dentry); + else + error = simple_unlink(parent->d_inode, dentry); + if (!error) + d_delete(dentry); + } + if (!error) + dput(dentry); + up(&parent->d_inode->i_sem); + dput(parent); + + if (!error) + simple_release_fs(&relayfs_mount, &relayfs_mount_count); + + return error; +} + +/** + * relayfs_remove_dir - remove a directory in the relay filesystem + * @dentry: directory dentry + * + * Returns 0 if successful, negative otherwise. + */ +int relayfs_remove_dir(struct dentry *dentry) +{ + return relayfs_remove(dentry); +} + +/** + * relayfs_open - open file op for relayfs files + * @inode: the inode + * @filp: the file + * + * Increments the channel buffer refcount. + */ +static int relayfs_open(struct inode *inode, struct file *filp) +{ + struct rchan_buf *buf = RELAYFS_I(inode)->buf; + kref_get(&buf->kref); + + return 0; +} + +/** + * relayfs_mmap - mmap file op for relayfs files + * @filp: the file + * @vma: the vma describing what to map + * + * Calls upon relay_mmap_buf to map the file into user space. + */ +static int relayfs_mmap(struct file *filp, struct vm_area_struct *vma) +{ + struct inode *inode = filp->f_dentry->d_inode; + return relay_mmap_buf(RELAYFS_I(inode)->buf, vma); +} + +/** + * relayfs_poll - poll file op for relayfs files + * @filp: the file + * @wait: poll table + * + * Poll implemention. + */ +static unsigned int relayfs_poll(struct file *filp, poll_table *wait) +{ + unsigned int mask = 0; + struct inode *inode = filp->f_dentry->d_inode; + struct rchan_buf *buf = RELAYFS_I(inode)->buf; + + if (buf->finalized) + return POLLERR; + + if (filp->f_mode & FMODE_READ) { + poll_wait(filp, &buf->read_wait, wait); + if (!relay_buf_empty(buf)) + mask |= POLLIN | POLLRDNORM; + } + + return mask; +} + +/** + * relayfs_release - release file op for relayfs files + * @inode: the inode + * @filp: the file + * + * Decrements the channel refcount, as the filesystem is + * no longer using it. + */ +static int relayfs_release(struct inode *inode, struct file *filp) +{ + struct rchan_buf *buf = RELAYFS_I(inode)->buf; + kref_put(&buf->kref, relay_remove_buf); + + return 0; +} + +/** + * relayfs_read_consume - update the consumed count for the buffer + */ +static void relayfs_read_consume(struct rchan_buf *buf, + size_t read_pos, + size_t bytes_consumed) +{ + size_t subbuf_size = buf->chan->subbuf_size; + size_t n_subbufs = buf->chan->n_subbufs; + size_t read_subbuf; + + if (buf->bytes_consumed + bytes_consumed > subbuf_size) { + relay_subbufs_consumed(buf->chan, buf->cpu, 1); + buf->bytes_consumed = 0; + } + + buf->bytes_consumed += bytes_consumed; + read_subbuf = read_pos / buf->chan->subbuf_size; + if (buf->bytes_consumed + buf->padding[read_subbuf] == subbuf_size) { + if ((read_subbuf == buf->subbufs_produced % n_subbufs) && + (buf->offset == subbuf_size)) + return; + relay_subbufs_consumed(buf->chan, buf->cpu, 1); + buf->bytes_consumed = 0; + } +} + +/** + * relayfs_read_avail - boolean, are there unconsumed bytes available? + */ +static int relayfs_read_avail(struct rchan_buf *buf, size_t read_pos) +{ + size_t bytes_produced, bytes_consumed, write_offset; + size_t subbuf_size = buf->chan->subbuf_size; + size_t n_subbufs = buf->chan->n_subbufs; + size_t produced = buf->subbufs_produced % n_subbufs; + size_t consumed = buf->subbufs_consumed % n_subbufs; + + write_offset = buf->offset > subbuf_size ? subbuf_size : buf->offset; + + if (consumed > produced) { + if ((produced > n_subbufs) && + (produced + n_subbufs - consumed <= n_subbufs)) + produced += n_subbufs; + } else if (consumed == produced) { + if (buf->offset > subbuf_size) { + produced += n_subbufs; + if (buf->subbufs_produced == buf->subbufs_consumed) + consumed += n_subbufs; + } + } + + if (buf->offset > subbuf_size) + bytes_produced = (produced - 1) * subbuf_size + write_offset; + else + bytes_produced = produced * subbuf_size + write_offset; + bytes_consumed = consumed * subbuf_size + buf->bytes_consumed; + + if (bytes_produced == bytes_consumed) + return 0; + + relayfs_read_consume(buf, read_pos, 0); + + return 1; +} + +/** + * relayfs_read_subbuf_avail - return bytes available in sub-buffer + */ +static size_t relayfs_read_subbuf_avail(size_t read_pos, + struct rchan_buf *buf) +{ + size_t padding, avail = 0; + size_t read_subbuf, read_offset, write_subbuf, write_offset; + size_t subbuf_size = buf->chan->subbuf_size; + + write_subbuf = (buf->data - buf->start) / subbuf_size; + write_offset = buf->offset > subbuf_size ? subbuf_size : buf->offset; + read_subbuf = read_pos / subbuf_size; + read_offset = read_pos % subbuf_size; + padding = buf->padding[read_subbuf]; + + if (read_subbuf == write_subbuf) { + if (read_offset + padding < write_offset) + avail = write_offset - (read_offset + padding); + } else + avail = (subbuf_size - padding) - read_offset; + + return avail; +} + +/** + * relayfs_read_start_pos - find the first available byte to read + * + * If the read_pos is in the middle of padding, return the + * position of the first actually available byte, otherwise + * return the original value. + */ +static size_t relayfs_read_start_pos(size_t read_pos, + struct rchan_buf *buf) +{ + size_t read_subbuf, padding, padding_start, padding_end; + size_t subbuf_size = buf->chan->subbuf_size; + size_t n_subbufs = buf->chan->n_subbufs; + + read_subbuf = read_pos / subbuf_size; + padding = buf->padding[read_subbuf]; + padding_start = (read_subbuf + 1) * subbuf_size - padding; + padding_end = (read_subbuf + 1) * subbuf_size; + if (read_pos >= padding_start && read_pos < padding_end) { + read_subbuf = (read_subbuf + 1) % n_subbufs; + read_pos = read_subbuf * subbuf_size; + } + + return read_pos; +} + +/** + * relayfs_read_end_pos - return the new read position + */ +static size_t relayfs_read_end_pos(struct rchan_buf *buf, + size_t read_pos, + size_t count) +{ + size_t read_subbuf, padding, end_pos; + size_t subbuf_size = buf->chan->subbuf_size; + size_t n_subbufs = buf->chan->n_subbufs; + + read_subbuf = read_pos / subbuf_size; + padding = buf->padding[read_subbuf]; + if (read_pos % subbuf_size + count + padding == subbuf_size) + end_pos = (read_subbuf + 1) * subbuf_size; + else + end_pos = read_pos + count; + if (end_pos >= subbuf_size * n_subbufs) + end_pos = 0; + + return end_pos; +} + +/** + * relayfs_read - read file op for relayfs files + * @filp: the file + * @buffer: the userspace buffer + * @count: number of bytes to read + * @ppos: position to read from + * + * Reads count bytes or the number of bytes available in the + * current sub-buffer being read, whichever is smaller. + */ +static ssize_t relayfs_read(struct file *filp, + char __user *buffer, + size_t count, + loff_t *ppos) +{ + struct inode *inode = filp->f_dentry->d_inode; + struct rchan_buf *buf = RELAYFS_I(inode)->buf; + size_t read_start, avail; + ssize_t ret = 0; + void *from; + + down(&inode->i_sem); + if(!relayfs_read_avail(buf, *ppos)) + goto out; + + read_start = relayfs_read_start_pos(*ppos, buf); + avail = relayfs_read_subbuf_avail(read_start, buf); + if (!avail) + goto out; + + from = buf->start + read_start; + ret = count = min(count, avail); + if (copy_to_user(buffer, from, count)) { + ret = -EFAULT; + goto out; + } + relayfs_read_consume(buf, read_start, count); + *ppos = relayfs_read_end_pos(buf, read_start, count); +out: + up(&inode->i_sem); + return ret; +} + +/** + * relayfs alloc_inode() implementation + */ +static struct inode *relayfs_alloc_inode(struct super_block *sb) +{ + struct relayfs_inode_info *p = kmem_cache_alloc(relayfs_inode_cachep, SLAB_KERNEL); + if (!p) + return NULL; + p->buf = NULL; + + return &p->vfs_inode; +} + +/** + * relayfs destroy_inode() implementation + */ +static void relayfs_destroy_inode(struct inode *inode) +{ + if (RELAYFS_I(inode)->buf) + relay_destroy_buf(RELAYFS_I(inode)->buf); + + kmem_cache_free(relayfs_inode_cachep, RELAYFS_I(inode)); +} + +static void init_once(void *p, kmem_cache_t *cachep, unsigned long flags) +{ + struct relayfs_inode_info *i = p; + if ((flags & (SLAB_CTOR_VERIFY | SLAB_CTOR_CONSTRUCTOR)) == SLAB_CTOR_CONSTRUCTOR) + inode_init_once(&i->vfs_inode); +} + +struct file_operations relayfs_file_operations = { + .open = relayfs_open, + .poll = relayfs_poll, + .mmap = relayfs_mmap, + .read = relayfs_read, + .llseek = no_llseek, + .release = relayfs_release, +}; + +static struct super_operations relayfs_ops = { + .statfs = simple_statfs, + .drop_inode = generic_delete_inode, + .alloc_inode = relayfs_alloc_inode, + .destroy_inode = relayfs_destroy_inode, +}; + +static int relayfs_fill_super(struct super_block * sb, void * data, int silent) +{ + struct inode *inode; + struct dentry *root; + int mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; + + sb->s_blocksize = PAGE_CACHE_SIZE; + sb->s_blocksize_bits = PAGE_CACHE_SHIFT; + sb->s_magic = RELAYFS_MAGIC; + sb->s_op = &relayfs_ops; + inode = relayfs_get_inode(sb, mode, NULL); + + if (!inode) + return -ENOMEM; + + root = d_alloc_root(inode); + if (!root) { + iput(inode); + return -ENOMEM; + } + sb->s_root = root; + + return 0; +} + +static struct super_block * relayfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data) +{ + return get_sb_single(fs_type, flags, data, relayfs_fill_super); +} + +static struct file_system_type relayfs_fs_type = { + .owner = THIS_MODULE, + .name = "relayfs", + .get_sb = relayfs_get_sb, + .kill_sb = kill_litter_super, +}; + +static int __init init_relayfs_fs(void) +{ + int err; + + relayfs_inode_cachep = kmem_cache_create("relayfs_inode_cache", + sizeof(struct relayfs_inode_info), 0, + 0, init_once, NULL); + if (!relayfs_inode_cachep) + return -ENOMEM; + + err = register_filesystem(&relayfs_fs_type); + if (err) + kmem_cache_destroy(relayfs_inode_cachep); + + return err; +} + +static void __exit exit_relayfs_fs(void) +{ + unregister_filesystem(&relayfs_fs_type); + kmem_cache_destroy(relayfs_inode_cachep); +} + +module_init(init_relayfs_fs) +module_exit(exit_relayfs_fs) + +EXPORT_SYMBOL_GPL(relayfs_file_operations); +EXPORT_SYMBOL_GPL(relayfs_create_dir); +EXPORT_SYMBOL_GPL(relayfs_remove_dir); + +MODULE_AUTHOR("Tom Zanussi <zanussi@us.ibm.com> and Karim Yaghmour <karim@opersys.com>"); +MODULE_DESCRIPTION("Relay Filesystem"); +MODULE_LICENSE("GPL"); + diff --git a/fs/relayfs/relay.c b/fs/relayfs/relay.c new file mode 100644 index 00000000000..16446a15c96 --- /dev/null +++ b/fs/relayfs/relay.c @@ -0,0 +1,431 @@ +/* + * Public API and common code for RelayFS. + * + * See Documentation/filesystems/relayfs.txt for an overview of relayfs. + * + * Copyright (C) 2002-2005 - Tom Zanussi (zanussi@us.ibm.com), IBM Corp + * Copyright (C) 1999-2005 - Karim Yaghmour (karim@opersys.com) + * + * This file is released under the GPL. + */ + +#include <linux/errno.h> +#include <linux/stddef.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/relayfs_fs.h> +#include "relay.h" +#include "buffers.h" + +/** + * relay_buf_empty - boolean, is the channel buffer empty? + * @buf: channel buffer + * + * Returns 1 if the buffer is empty, 0 otherwise. + */ +int relay_buf_empty(struct rchan_buf *buf) +{ + return (buf->subbufs_produced - buf->subbufs_consumed) ? 0 : 1; +} + +/** + * relay_buf_full - boolean, is the channel buffer full? + * @buf: channel buffer + * + * Returns 1 if the buffer is full, 0 otherwise. + */ +int relay_buf_full(struct rchan_buf *buf) +{ + size_t ready = buf->subbufs_produced - buf->subbufs_consumed; + return (ready >= buf->chan->n_subbufs) ? 1 : 0; +} + +/* + * High-level relayfs kernel API and associated functions. + */ + +/* + * rchan_callback implementations defining default channel behavior. Used + * in place of corresponding NULL values in client callback struct. + */ + +/* + * subbuf_start() default callback. Does nothing. + */ +static int subbuf_start_default_callback (struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + size_t prev_padding) +{ + if (relay_buf_full(buf)) + return 0; + + return 1; +} + +/* + * buf_mapped() default callback. Does nothing. + */ +static void buf_mapped_default_callback(struct rchan_buf *buf, + struct file *filp) +{ +} + +/* + * buf_unmapped() default callback. Does nothing. + */ +static void buf_unmapped_default_callback(struct rchan_buf *buf, + struct file *filp) +{ +} + +/* relay channel default callbacks */ +static struct rchan_callbacks default_channel_callbacks = { + .subbuf_start = subbuf_start_default_callback, + .buf_mapped = buf_mapped_default_callback, + .buf_unmapped = buf_unmapped_default_callback, +}; + +/** + * wakeup_readers - wake up readers waiting on a channel + * @private: the channel buffer + * + * This is the work function used to defer reader waking. The + * reason waking is deferred is that calling directly from write + * causes problems if you're writing from say the scheduler. + */ +static void wakeup_readers(void *private) +{ + struct rchan_buf *buf = private; + wake_up_interruptible(&buf->read_wait); +} + +/** + * __relay_reset - reset a channel buffer + * @buf: the channel buffer + * @init: 1 if this is a first-time initialization + * + * See relay_reset for description of effect. + */ +static inline void __relay_reset(struct rchan_buf *buf, unsigned int init) +{ + size_t i; + + if (init) { + init_waitqueue_head(&buf->read_wait); + kref_init(&buf->kref); + INIT_WORK(&buf->wake_readers, NULL, NULL); + } else { + cancel_delayed_work(&buf->wake_readers); + flush_scheduled_work(); + } + + buf->subbufs_produced = 0; + buf->subbufs_consumed = 0; + buf->bytes_consumed = 0; + buf->finalized = 0; + buf->data = buf->start; + buf->offset = 0; + + for (i = 0; i < buf->chan->n_subbufs; i++) + buf->padding[i] = 0; + + buf->chan->cb->subbuf_start(buf, buf->data, NULL, 0); +} + +/** + * relay_reset - reset the channel + * @chan: the channel + * + * This has the effect of erasing all data from all channel buffers + * and restarting the channel in its initial state. The buffers + * are not freed, so any mappings are still in effect. + * + * NOTE: Care should be taken that the channel isn't actually + * being used by anything when this call is made. + */ +void relay_reset(struct rchan *chan) +{ + unsigned int i; + + if (!chan) + return; + + for (i = 0; i < NR_CPUS; i++) { + if (!chan->buf[i]) + continue; + __relay_reset(chan->buf[i], 0); + } +} + +/** + * relay_open_buf - create a new channel buffer in relayfs + * + * Internal - used by relay_open(). + */ +static struct rchan_buf *relay_open_buf(struct rchan *chan, + const char *filename, + struct dentry *parent) +{ + struct rchan_buf *buf; + struct dentry *dentry; + + /* Create file in fs */ + dentry = relayfs_create_file(filename, parent, S_IRUSR, chan); + if (!dentry) + return NULL; + + buf = RELAYFS_I(dentry->d_inode)->buf; + buf->dentry = dentry; + __relay_reset(buf, 1); + + return buf; +} + +/** + * relay_close_buf - close a channel buffer + * @buf: channel buffer + * + * Marks the buffer finalized and restores the default callbacks. + * The channel buffer and channel buffer data structure are then freed + * automatically when the last reference is given up. + */ +static inline void relay_close_buf(struct rchan_buf *buf) +{ + buf->finalized = 1; + buf->chan->cb = &default_channel_callbacks; + cancel_delayed_work(&buf->wake_readers); + flush_scheduled_work(); + kref_put(&buf->kref, relay_remove_buf); +} + +static inline void setup_callbacks(struct rchan *chan, + struct rchan_callbacks *cb) +{ + if (!cb) { + chan->cb = &default_channel_callbacks; + return; + } + + if (!cb->subbuf_start) + cb->subbuf_start = subbuf_start_default_callback; + if (!cb->buf_mapped) + cb->buf_mapped = buf_mapped_default_callback; + if (!cb->buf_unmapped) + cb->buf_unmapped = buf_unmapped_default_callback; + chan->cb = cb; +} + +/** + * relay_open - create a new relayfs channel + * @base_filename: base name of files to create + * @parent: dentry of parent directory, NULL for root directory + * @subbuf_size: size of sub-buffers + * @n_subbufs: number of sub-buffers + * @cb: client callback functions + * + * Returns channel pointer if successful, NULL otherwise. + * + * Creates a channel buffer for each cpu using the sizes and + * attributes specified. The created channel buffer files + * will be named base_filename0...base_filenameN-1. File + * permissions will be S_IRUSR. + */ +struct rchan *relay_open(const char *base_filename, + struct dentry *parent, + size_t subbuf_size, + size_t n_subbufs, + struct rchan_callbacks *cb) +{ + unsigned int i; + struct rchan *chan; + char *tmpname; + + if (!base_filename) + return NULL; + + if (!(subbuf_size && n_subbufs)) + return NULL; + + chan = kcalloc(1, sizeof(struct rchan), GFP_KERNEL); + if (!chan) + return NULL; + + chan->version = RELAYFS_CHANNEL_VERSION; + chan->n_subbufs = n_subbufs; + chan->subbuf_size = subbuf_size; + chan->alloc_size = FIX_SIZE(subbuf_size * n_subbufs); + setup_callbacks(chan, cb); + kref_init(&chan->kref); + + tmpname = kmalloc(NAME_MAX + 1, GFP_KERNEL); + if (!tmpname) + goto free_chan; + + for_each_online_cpu(i) { + sprintf(tmpname, "%s%d", base_filename, i); + chan->buf[i] = relay_open_buf(chan, tmpname, parent); + chan->buf[i]->cpu = i; + if (!chan->buf[i]) + goto free_bufs; + } + + kfree(tmpname); + return chan; + +free_bufs: + for (i = 0; i < NR_CPUS; i++) { + if (!chan->buf[i]) + break; + relay_close_buf(chan->buf[i]); + } + kfree(tmpname); + +free_chan: + kref_put(&chan->kref, relay_destroy_channel); + return NULL; +} + +/** + * relay_switch_subbuf - switch to a new sub-buffer + * @buf: channel buffer + * @length: size of current event + * + * Returns either the length passed in or 0 if full. + + * Performs sub-buffer-switch tasks such as invoking callbacks, + * updating padding counts, waking up readers, etc. + */ +size_t relay_switch_subbuf(struct rchan_buf *buf, size_t length) +{ + void *old, *new; + size_t old_subbuf, new_subbuf; + + if (unlikely(length > buf->chan->subbuf_size)) + goto toobig; + + if (buf->offset != buf->chan->subbuf_size + 1) { + buf->prev_padding = buf->chan->subbuf_size - buf->offset; + old_subbuf = buf->subbufs_produced % buf->chan->n_subbufs; + buf->padding[old_subbuf] = buf->prev_padding; + buf->subbufs_produced++; + if (waitqueue_active(&buf->read_wait)) { + PREPARE_WORK(&buf->wake_readers, wakeup_readers, buf); + schedule_delayed_work(&buf->wake_readers, 1); + } + } + + old = buf->data; + new_subbuf = buf->subbufs_produced % buf->chan->n_subbufs; + new = buf->start + new_subbuf * buf->chan->subbuf_size; + buf->offset = 0; + if (!buf->chan->cb->subbuf_start(buf, new, old, buf->prev_padding)) { + buf->offset = buf->chan->subbuf_size + 1; + return 0; + } + buf->data = new; + buf->padding[new_subbuf] = 0; + + if (unlikely(length + buf->offset > buf->chan->subbuf_size)) + goto toobig; + + return length; + +toobig: + printk(KERN_WARNING "relayfs: event too large (%Zd)\n", length); + WARN_ON(1); + return 0; +} + +/** + * relay_subbufs_consumed - update the buffer's sub-buffers-consumed count + * @chan: the channel + * @cpu: the cpu associated with the channel buffer to update + * @subbufs_consumed: number of sub-buffers to add to current buf's count + * + * Adds to the channel buffer's consumed sub-buffer count. + * subbufs_consumed should be the number of sub-buffers newly consumed, + * not the total consumed. + * + * NOTE: kernel clients don't need to call this function if the channel + * mode is 'overwrite'. + */ +void relay_subbufs_consumed(struct rchan *chan, + unsigned int cpu, + size_t subbufs_consumed) +{ + struct rchan_buf *buf; + + if (!chan) + return; + + if (cpu >= NR_CPUS || !chan->buf[cpu]) + return; + + buf = chan->buf[cpu]; + buf->subbufs_consumed += subbufs_consumed; + if (buf->subbufs_consumed > buf->subbufs_produced) + buf->subbufs_consumed = buf->subbufs_produced; +} + +/** + * relay_destroy_channel - free the channel struct + * + * Should only be called from kref_put(). + */ +void relay_destroy_channel(struct kref *kref) +{ + struct rchan *chan = container_of(kref, struct rchan, kref); + kfree(chan); +} + +/** + * relay_close - close the channel + * @chan: the channel + * + * Closes all channel buffers and frees the channel. + */ +void relay_close(struct rchan *chan) +{ + unsigned int i; + + if (!chan) + return; + + for (i = 0; i < NR_CPUS; i++) { + if (!chan->buf[i]) + continue; + relay_close_buf(chan->buf[i]); + } + + kref_put(&chan->kref, relay_destroy_channel); +} + +/** + * relay_flush - close the channel + * @chan: the channel + * + * Flushes all channel buffers i.e. forces buffer switch. + */ +void relay_flush(struct rchan *chan) +{ + unsigned int i; + + if (!chan) + return; + + for (i = 0; i < NR_CPUS; i++) { + if (!chan->buf[i]) + continue; + relay_switch_subbuf(chan->buf[i], 0); + } +} + +EXPORT_SYMBOL_GPL(relay_open); +EXPORT_SYMBOL_GPL(relay_close); +EXPORT_SYMBOL_GPL(relay_flush); +EXPORT_SYMBOL_GPL(relay_reset); +EXPORT_SYMBOL_GPL(relay_subbufs_consumed); +EXPORT_SYMBOL_GPL(relay_switch_subbuf); +EXPORT_SYMBOL_GPL(relay_buf_full); diff --git a/fs/relayfs/relay.h b/fs/relayfs/relay.h new file mode 100644 index 00000000000..703503fa22b --- /dev/null +++ b/fs/relayfs/relay.h @@ -0,0 +1,12 @@ +#ifndef _RELAY_H +#define _RELAY_H + +struct dentry *relayfs_create_file(const char *name, + struct dentry *parent, + int mode, + struct rchan *chan); +extern int relayfs_remove(struct dentry *dentry); +extern int relay_buf_empty(struct rchan_buf *buf); +extern void relay_destroy_channel(struct kref *kref); + +#endif /* _RELAY_H */ diff --git a/include/linux/relayfs_fs.h b/include/linux/relayfs_fs.h new file mode 100644 index 00000000000..cfafc3e76bc --- /dev/null +++ b/include/linux/relayfs_fs.h @@ -0,0 +1,255 @@ +/* + * linux/include/linux/relayfs_fs.h + * + * Copyright (C) 2002, 2003 - Tom Zanussi (zanussi@us.ibm.com), IBM Corp + * Copyright (C) 1999, 2000, 2001, 2002 - Karim Yaghmour (karim@opersys.com) + * + * RelayFS definitions and declarations + */ + +#ifndef _LINUX_RELAYFS_FS_H +#define _LINUX_RELAYFS_FS_H + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/wait.h> +#include <linux/list.h> +#include <linux/fs.h> +#include <linux/poll.h> +#include <linux/kref.h> + +/* + * Tracks changes to rchan_buf struct + */ +#define RELAYFS_CHANNEL_VERSION 5 + +/* + * Per-cpu relay channel buffer + */ +struct rchan_buf +{ + void *start; /* start of channel buffer */ + void *data; /* start of current sub-buffer */ + size_t offset; /* current offset into sub-buffer */ + size_t subbufs_produced; /* count of sub-buffers produced */ + size_t subbufs_consumed; /* count of sub-buffers consumed */ + struct rchan *chan; /* associated channel */ + wait_queue_head_t read_wait; /* reader wait queue */ + struct work_struct wake_readers; /* reader wake-up work struct */ + struct dentry *dentry; /* channel file dentry */ + struct kref kref; /* channel buffer refcount */ + struct page **page_array; /* array of current buffer pages */ + unsigned int page_count; /* number of current buffer pages */ + unsigned int finalized; /* buffer has been finalized */ + size_t *padding; /* padding counts per sub-buffer */ + size_t prev_padding; /* temporary variable */ + size_t bytes_consumed; /* bytes consumed in cur read subbuf */ + unsigned int cpu; /* this buf's cpu */ +} ____cacheline_aligned; + +/* + * Relay channel data structure + */ +struct rchan +{ + u32 version; /* the version of this struct */ + size_t subbuf_size; /* sub-buffer size */ + size_t n_subbufs; /* number of sub-buffers per buffer */ + size_t alloc_size; /* total buffer size allocated */ + struct rchan_callbacks *cb; /* client callbacks */ + struct kref kref; /* channel refcount */ + void *private_data; /* for user-defined data */ + struct rchan_buf *buf[NR_CPUS]; /* per-cpu channel buffers */ +}; + +/* + * Relayfs inode + */ +struct relayfs_inode_info +{ + struct inode vfs_inode; + struct rchan_buf *buf; +}; + +static inline struct relayfs_inode_info *RELAYFS_I(struct inode *inode) +{ + return container_of(inode, struct relayfs_inode_info, vfs_inode); +} + +/* + * Relay channel client callbacks + */ +struct rchan_callbacks +{ + /* + * subbuf_start - called on buffer-switch to a new sub-buffer + * @buf: the channel buffer containing the new sub-buffer + * @subbuf: the start of the new sub-buffer + * @prev_subbuf: the start of the previous sub-buffer + * @prev_padding: unused space at the end of previous sub-buffer + * + * The client should return 1 to continue logging, 0 to stop + * logging. + * + * NOTE: subbuf_start will also be invoked when the buffer is + * created, so that the first sub-buffer can be initialized + * if necessary. In this case, prev_subbuf will be NULL. + * + * NOTE: the client can reserve bytes at the beginning of the new + * sub-buffer by calling subbuf_start_reserve() in this callback. + */ + int (*subbuf_start) (struct rchan_buf *buf, + void *subbuf, + void *prev_subbuf, + size_t prev_padding); + + /* + * buf_mapped - relayfs buffer mmap notification + * @buf: the channel buffer + * @filp: relayfs file pointer + * + * Called when a relayfs file is successfully mmapped + */ + void (*buf_mapped)(struct rchan_buf *buf, + struct file *filp); + + /* + * buf_unmapped - relayfs buffer unmap notification + * @buf: the channel buffer + * @filp: relayfs file pointer + * + * Called when a relayfs file is successfully unmapped + */ + void (*buf_unmapped)(struct rchan_buf *buf, + struct file *filp); +}; + +/* + * relayfs kernel API, fs/relayfs/relay.c + */ + +struct rchan *relay_open(const char *base_filename, + struct dentry *parent, + size_t subbuf_size, + size_t n_subbufs, + struct rchan_callbacks *cb); +extern void relay_close(struct rchan *chan); +extern void relay_flush(struct rchan *chan); +extern void relay_subbufs_consumed(struct rchan *chan, + unsigned int cpu, + size_t consumed); +extern void relay_reset(struct rchan *chan); +extern int relay_buf_full(struct rchan_buf *buf); + +extern size_t relay_switch_subbuf(struct rchan_buf *buf, + size_t length); +extern struct dentry *relayfs_create_dir(const char *name, + struct dentry *parent); +extern int relayfs_remove_dir(struct dentry *dentry); + +/** + * relay_write - write data into the channel + * @chan: relay channel + * @data: data to be written + * @length: number of bytes to write + * + * Writes data into the current cpu's channel buffer. + * + * Protects the buffer by disabling interrupts. Use this + * if you might be logging from interrupt context. Try + * __relay_write() if you know you won't be logging from + * interrupt context. + */ +static inline void relay_write(struct rchan *chan, + const void *data, + size_t length) +{ + unsigned long flags; + struct rchan_buf *buf; + + local_irq_save(flags); + buf = chan->buf[smp_processor_id()]; + if (unlikely(buf->offset + length > chan->subbuf_size)) + length = relay_switch_subbuf(buf, length); + memcpy(buf->data + buf->offset, data, length); + buf->offset += length; + local_irq_restore(flags); +} + +/** + * __relay_write - write data into the channel + * @chan: relay channel + * @data: data to be written + * @length: number of bytes to write + * + * Writes data into the current cpu's channel buffer. + * + * Protects the buffer by disabling preemption. Use + * relay_write() if you might be logging from interrupt + * context. + */ +static inline void __relay_write(struct rchan *chan, + const void *data, + size_t length) +{ + struct rchan_buf *buf; + + buf = chan->buf[get_cpu()]; + if (unlikely(buf->offset + length > buf->chan->subbuf_size)) + length = relay_switch_subbuf(buf, length); + memcpy(buf->data + buf->offset, data, length); + buf->offset += length; + put_cpu(); +} + +/** + * relay_reserve - reserve slot in channel buffer + * @chan: relay channel + * @length: number of bytes to reserve + * + * Returns pointer to reserved slot, NULL if full. + * + * Reserves a slot in the current cpu's channel buffer. + * Does not protect the buffer at all - caller must provide + * appropriate synchronization. + */ +static inline void *relay_reserve(struct rchan *chan, size_t length) +{ + void *reserved; + struct rchan_buf *buf = chan->buf[smp_processor_id()]; + + if (unlikely(buf->offset + length > buf->chan->subbuf_size)) { + length = relay_switch_subbuf(buf, length); + if (!length) + return NULL; + } + reserved = buf->data + buf->offset; + buf->offset += length; + + return reserved; +} + +/** + * subbuf_start_reserve - reserve bytes at the start of a sub-buffer + * @buf: relay channel buffer + * @length: number of bytes to reserve + * + * Helper function used to reserve bytes at the beginning of + * a sub-buffer in the subbuf_start() callback. + */ +static inline void subbuf_start_reserve(struct rchan_buf *buf, + size_t length) +{ + BUG_ON(length >= buf->chan->subbuf_size - 1); + buf->offset = length; +} + +/* + * exported relayfs file operations, fs/relayfs/inode.c + */ + +extern struct file_operations relayfs_file_operations; + +#endif /* _LINUX_RELAYFS_FS_H */ + -- cgit v1.2.3-70-g09d2 From 19306059cd7fedaf96b4b0260a9a8a45e513c857 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" <paulmck@us.ibm.com> Date: Tue, 6 Sep 2005 15:16:35 -0700 Subject: [PATCH] NMI: Update NMI users of RCU to use new API Uses of RCU for dynamically changeable NMI handlers need to use the new rcu_dereference() and rcu_assign_pointer() facilities. This change makes it clear that these uses are safe from a memory-barrier viewpoint, but the main purpose is to document exactly what operations are being protected by RCU. This has been tested on x86 and x86-64, which are the only architectures affected by this change. Signed-off-by: <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/RCU/NMI-RCU.txt | 112 ++++++++++++++++++++++++++++++++++++++++++ arch/i386/kernel/traps.c | 4 +- arch/x86_64/kernel/nmi.c | 4 +- 3 files changed, 116 insertions(+), 4 deletions(-) create mode 100644 Documentation/RCU/NMI-RCU.txt (limited to 'Documentation') diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt new file mode 100644 index 00000000000..d0634a5c344 --- /dev/null +++ b/Documentation/RCU/NMI-RCU.txt @@ -0,0 +1,112 @@ +Using RCU to Protect Dynamic NMI Handlers + + +Although RCU is usually used to protect read-mostly data structures, +it is possible to use RCU to provide dynamic non-maskable interrupt +handlers, as well as dynamic irq handlers. This document describes +how to do this, drawing loosely from Zwane Mwaikambo's NMI-timer +work in "arch/i386/oprofile/nmi_timer_int.c" and in +"arch/i386/kernel/traps.c". + +The relevant pieces of code are listed below, each followed by a +brief explanation. + + static int dummy_nmi_callback(struct pt_regs *regs, int cpu) + { + return 0; + } + +The dummy_nmi_callback() function is a "dummy" NMI handler that does +nothing, but returns zero, thus saying that it did nothing, allowing +the NMI handler to take the default machine-specific action. + + static nmi_callback_t nmi_callback = dummy_nmi_callback; + +This nmi_callback variable is a global function pointer to the current +NMI handler. + + fastcall void do_nmi(struct pt_regs * regs, long error_code) + { + int cpu; + + nmi_enter(); + + cpu = smp_processor_id(); + ++nmi_count(cpu); + + if (!rcu_dereference(nmi_callback)(regs, cpu)) + default_do_nmi(regs); + + nmi_exit(); + } + +The do_nmi() function processes each NMI. It first disables preemption +in the same way that a hardware irq would, then increments the per-CPU +count of NMIs. It then invokes the NMI handler stored in the nmi_callback +function pointer. If this handler returns zero, do_nmi() invokes the +default_do_nmi() function to handle a machine-specific NMI. Finally, +preemption is restored. + +Strictly speaking, rcu_dereference() is not needed, since this code runs +only on i386, which does not need rcu_dereference() anyway. However, +it is a good documentation aid, particularly for anyone attempting to +do something similar on Alpha. + +Quick Quiz: Why might the rcu_dereference() be necessary on Alpha, + given that the code referenced by the pointer is read-only? + + +Back to the discussion of NMI and RCU... + + void set_nmi_callback(nmi_callback_t callback) + { + rcu_assign_pointer(nmi_callback, callback); + } + +The set_nmi_callback() function registers an NMI handler. Note that any +data that is to be used by the callback must be initialized up -before- +the call to set_nmi_callback(). On architectures that do not order +writes, the rcu_assign_pointer() ensures that the NMI handler sees the +initialized values. + + void unset_nmi_callback(void) + { + rcu_assign_pointer(nmi_callback, dummy_nmi_callback); + } + +This function unregisters an NMI handler, restoring the original +dummy_nmi_handler(). However, there may well be an NMI handler +currently executing on some other CPU. We therefore cannot free +up any data structures used by the old NMI handler until execution +of it completes on all other CPUs. + +One way to accomplish this is via synchronize_sched(), perhaps as +follows: + + unset_nmi_callback(); + synchronize_sched(); + kfree(my_nmi_data); + +This works because synchronize_sched() blocks until all CPUs complete +any preemption-disabled segments of code that they were executing. +Since NMI handlers disable preemption, synchronize_sched() is guaranteed +not to return until all ongoing NMI handlers exit. It is therefore safe +to free up the handler's data as soon as synchronize_sched() returns. + + +Answer to Quick Quiz + + Why might the rcu_dereference() be necessary on Alpha, given + that the code referenced by the pointer is read-only? + + Answer: The caller to set_nmi_callback() might well have + initialized some data that is to be used by the + new NMI handler. In this case, the rcu_dereference() + would be needed, because otherwise a CPU that received + an NMI just after the new handler was set might see + the pointer to the new NMI handler, but the old + pre-initialized version of the handler's data. + + More important, the rcu_dereference() makes it clear + to someone reading the code that the pointer is being + protected by RCU. diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 54629bb5893..029bf94cda7 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -657,7 +657,7 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code) ++nmi_count(cpu); - if (!nmi_callback(regs, cpu)) + if (!rcu_dereference(nmi_callback)(regs, cpu)) default_do_nmi(regs); nmi_exit(); @@ -665,7 +665,7 @@ fastcall void do_nmi(struct pt_regs * regs, long error_code) void set_nmi_callback(nmi_callback_t callback) { - nmi_callback = callback; + rcu_assign_pointer(nmi_callback, callback); } EXPORT_SYMBOL_GPL(set_nmi_callback); diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 84cae81fff8..caf164959e1 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -524,14 +524,14 @@ asmlinkage void do_nmi(struct pt_regs * regs, long error_code) nmi_enter(); add_pda(__nmi_count,1); - if (!nmi_callback(regs, cpu)) + if (!rcu_dereference(nmi_callback)(regs, cpu)) default_do_nmi(regs); nmi_exit(); } void set_nmi_callback(nmi_callback_t callback) { - nmi_callback = callback; + rcu_assign_pointer(nmi_callback, callback); } void unset_nmi_callback(void) -- cgit v1.2.3-70-g09d2 From 5dd42c262bd742fa3602180bbe5550b4828de8f3 Mon Sep 17 00:00:00 2001 From: Adrian Bunk <bunk@stusta.de> Date: Tue, 6 Sep 2005 15:16:43 -0700 Subject: [PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversion All users have been converted. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/feature-removal-schedule.txt | 8 --- fs/compat.c | 90 ------------------------------ include/linux/ioctl32.h | 22 -------- 3 files changed, 120 deletions(-) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 363909056e4..95e74435312 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -51,14 +51,6 @@ Who: Adrian Bunk <bunk@stusta.de> --------------------------- -What: register_ioctl32_conversion() / unregister_ioctl32_conversion() -When: April 2005 -Why: Replaced by ->compat_ioctl in file_operations and other method - vecors. -Who: Andi Kleen <ak@muc.de>, Christoph Hellwig <hch@lst.de> - ---------------------------- - What: RCU API moves to EXPORT_SYMBOL_GPL When: April 2006 Files: include/linux/rcupdate.h, kernel/rcupdate.c diff --git a/fs/compat.c b/fs/compat.c index 8e03d31eec3..2eb03c49b07 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -310,96 +310,6 @@ static int __init init_sys32_ioctl(void) __initcall(init_sys32_ioctl); -int register_ioctl32_conversion(unsigned int cmd, - ioctl_trans_handler_t handler) -{ - struct ioctl_trans *t; - struct ioctl_trans *new_t; - unsigned long hash = ioctl32_hash(cmd); - - new_t = kmalloc(sizeof(*new_t), GFP_KERNEL); - if (!new_t) - return -ENOMEM; - - down_write(&ioctl32_sem); - for (t = ioctl32_hash_table[hash]; t; t = t->next) { - if (t->cmd == cmd) { - printk(KERN_ERR "Trying to register duplicated ioctl32 " - "handler %x\n", cmd); - up_write(&ioctl32_sem); - kfree(new_t); - return -EINVAL; - } - } - new_t->next = NULL; - new_t->cmd = cmd; - new_t->handler = handler; - ioctl32_insert_translation(new_t); - - up_write(&ioctl32_sem); - return 0; -} -EXPORT_SYMBOL(register_ioctl32_conversion); - -static inline int builtin_ioctl(struct ioctl_trans *t) -{ - return t >= ioctl_start && t < (ioctl_start + ioctl_table_size); -} - -/* Problem: - This function cannot unregister duplicate ioctls, because they are not - unique. - When they happen we need to extend the prototype to pass the handler too. */ - -int unregister_ioctl32_conversion(unsigned int cmd) -{ - unsigned long hash = ioctl32_hash(cmd); - struct ioctl_trans *t, *t1; - - down_write(&ioctl32_sem); - - t = ioctl32_hash_table[hash]; - if (!t) { - up_write(&ioctl32_sem); - return -EINVAL; - } - - if (t->cmd == cmd) { - if (builtin_ioctl(t)) { - printk("%p tried to unregister builtin ioctl %x\n", - __builtin_return_address(0), cmd); - } else { - ioctl32_hash_table[hash] = t->next; - up_write(&ioctl32_sem); - kfree(t); - return 0; - } - } - while (t->next) { - t1 = t->next; - if (t1->cmd == cmd) { - if (builtin_ioctl(t1)) { - printk("%p tried to unregister builtin " - "ioctl %x\n", - __builtin_return_address(0), cmd); - goto out; - } else { - t->next = t1->next; - up_write(&ioctl32_sem); - kfree(t1); - return 0; - } - } - t = t1; - } - printk(KERN_ERR "Trying to free unknown 32bit ioctl handler %x\n", - cmd); -out: - up_write(&ioctl32_sem); - return -EINVAL; -} -EXPORT_SYMBOL(unregister_ioctl32_conversion); - static void compat_ioctl_error(struct file *filp, unsigned int fd, unsigned int cmd, unsigned long arg) { diff --git a/include/linux/ioctl32.h b/include/linux/ioctl32.h index e8c4af32b3b..948809d9991 100644 --- a/include/linux/ioctl32.h +++ b/include/linux/ioctl32.h @@ -14,26 +14,4 @@ struct ioctl_trans { struct ioctl_trans *next; }; -/* - * Register an 32bit ioctl translation handler for ioctl cmd. - * - * handler == NULL: use 64bit ioctl handler. - * arguments to handler: fd: file descriptor - * cmd: ioctl command. - * arg: ioctl argument - * struct file *file: file descriptor pointer. - */ - -#ifdef CONFIG_COMPAT -extern int __deprecated register_ioctl32_conversion(unsigned int cmd, - ioctl_trans_handler_t handler); -extern int __deprecated unregister_ioctl32_conversion(unsigned int cmd); - -#else - -#define register_ioctl32_conversion(cmd, handler) ({ 0; }) -#define unregister_ioctl32_conversion(cmd) ({ 0; }) - -#endif - #endif -- cgit v1.2.3-70-g09d2 From d2052c1676a39cae101a81f3da8a4ade8b668c88 Mon Sep 17 00:00:00 2001 From: Erik Waling <erikw@acc.umu.se> Date: Tue, 6 Sep 2005 15:17:02 -0700 Subject: [PATCH] sonypi SPIC initialisation fix Newer Sony VAIO models (VGN-S480, VGN-S460, VGN-S3XP etc) use a new method to initialize the SPIC device. The new way to initialize (and disable) the device comes directly from the AML code in the _CRS, _SRS and _DIS methods from the DSDT table. This patch adds support for the new models. Signed-off-by: Erik Waling <erikw@acc.umu.se> Signed-off-by: Stelian Pop <stelian@popies.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/sonypi.txt | 10 ++++ drivers/char/sonypi.c | 117 +++++++++++++++++++++++++++++++++++++++-------- include/linux/sonypi.h | 2 + 3 files changed, 109 insertions(+), 20 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sonypi.txt b/Documentation/sonypi.txt index 0f3b2405d09..c1237a92550 100644 --- a/Documentation/sonypi.txt +++ b/Documentation/sonypi.txt @@ -99,6 +99,7 @@ statically linked into the kernel). Those options are: SONYPI_MEYE_MASK 0x0400 SONYPI_MEMORYSTICK_MASK 0x0800 SONYPI_BATTERY_MASK 0x1000 + SONYPI_WIRELESS_MASK 0x2000 useinput: if set (which is the default) two input devices are created, one which interprets the jogdial events as @@ -137,6 +138,15 @@ Bugs: speed handling etc). Use ACPI instead of APM if it works on your laptop. + - sonypi lacks the ability to distinguish between certain key + events on some models. + + - some models with the nvidia card (geforce go 6200 tc) uses a + different way to adjust the backlighting of the screen. There + is a userspace utility to adjust the brightness on those models, + which can be downloaded from + http://www.acc.umu.se/~erikw/program/smartdimmer-0.1.tar.bz2 + - since all development was done by reverse engineering, there is _absolutely no guarantee_ that this driver will not crash your laptop. Permanently. diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c index cefbe985e55..35cf1edbc17 100644 --- a/drivers/char/sonypi.c +++ b/drivers/char/sonypi.c @@ -98,12 +98,13 @@ MODULE_PARM_DESC(useinput, #define SONYPI_DEVICE_MODEL_TYPE1 1 #define SONYPI_DEVICE_MODEL_TYPE2 2 +#define SONYPI_DEVICE_MODEL_TYPE3 3 /* type1 models use those */ #define SONYPI_IRQ_PORT 0x8034 #define SONYPI_IRQ_SHIFT 22 -#define SONYPI_BASE 0x50 -#define SONYPI_G10A (SONYPI_BASE+0x14) +#define SONYPI_TYPE1_BASE 0x50 +#define SONYPI_G10A (SONYPI_TYPE1_BASE+0x14) #define SONYPI_TYPE1_REGION_SIZE 0x08 #define SONYPI_TYPE1_EVTYPE_OFFSET 0x04 @@ -114,6 +115,13 @@ MODULE_PARM_DESC(useinput, #define SONYPI_TYPE2_REGION_SIZE 0x20 #define SONYPI_TYPE2_EVTYPE_OFFSET 0x12 +/* type3 series specifics */ +#define SONYPI_TYPE3_BASE 0x40 +#define SONYPI_TYPE3_GID2 (SONYPI_TYPE3_BASE+0x48) /* 16 bits */ +#define SONYPI_TYPE3_MISC (SONYPI_TYPE3_BASE+0x6d) /* 8 bits */ +#define SONYPI_TYPE3_REGION_SIZE 0x20 +#define SONYPI_TYPE3_EVTYPE_OFFSET 0x12 + /* battery / brightness addresses */ #define SONYPI_BAT_FLAGS 0x81 #define SONYPI_LCD_LIGHT 0x96 @@ -159,6 +167,10 @@ static struct sonypi_ioport_list sonypi_type2_ioport_list[] = { { 0x0, 0x0 } }; +/* same as in type 2 models */ +static struct sonypi_ioport_list *sonypi_type3_ioport_list = + sonypi_type2_ioport_list; + /* The set of possible interrupts */ struct sonypi_irq_list { u16 irq; @@ -180,6 +192,9 @@ static struct sonypi_irq_list sonypi_type2_irq_list[] = { { 0, 0x00 } /* no IRQ, 0x00 in SIRQ in AML */ }; +/* same as in type2 models */ +static struct sonypi_irq_list *sonypi_type3_irq_list = sonypi_type2_irq_list; + #define SONYPI_CAMERA_BRIGHTNESS 0 #define SONYPI_CAMERA_CONTRAST 1 #define SONYPI_CAMERA_HUE 2 @@ -223,6 +238,7 @@ static struct sonypi_irq_list sonypi_type2_irq_list[] = { #define SONYPI_MEYE_MASK 0x00000400 #define SONYPI_MEMORYSTICK_MASK 0x00000800 #define SONYPI_BATTERY_MASK 0x00001000 +#define SONYPI_WIRELESS_MASK 0x00002000 struct sonypi_event { u8 data; @@ -305,6 +321,13 @@ static struct sonypi_event sonypi_blueev[] = { { 0, 0 } }; +/* The set of possible wireless events */ +static struct sonypi_event sonypi_wlessev[] = { + { 0x59, SONYPI_EVENT_WIRELESS_ON }, + { 0x5a, SONYPI_EVENT_WIRELESS_OFF }, + { 0, 0 } +}; + /* The set of possible back button events */ static struct sonypi_event sonypi_backev[] = { { 0x20, SONYPI_EVENT_BACK_PRESSED }, @@ -391,6 +414,12 @@ static struct sonypi_eventtypes { { SONYPI_DEVICE_MODEL_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0, 0xffffffff, sonypi_releaseev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, + { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0 } }; @@ -563,6 +592,23 @@ static void sonypi_type2_srs(void) udelay(10); } +static void sonypi_type3_srs(void) +{ + u16 v16; + u8 v8; + + /* This model type uses the same initialiazation of + * the embedded controller as the type2 models. */ + sonypi_type2_srs(); + + /* Initialization of PCI config space of the LPC interface bridge. */ + v16 = (sonypi_device.ioport1 & 0xFFF0) | 0x01; + pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, v16); + pci_read_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, &v8); + v8 = (v8 & 0xCF) | 0x10; + pci_write_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, v8); +} + /* Disables the device - this comes from the AML code in the ACPI bios */ static void sonypi_type1_dis(void) { @@ -587,6 +633,13 @@ static void sonypi_type2_dis(void) printk(KERN_WARNING "ec_write failed\n"); } +static void sonypi_type3_dis(void) +{ + sonypi_type2_dis(); + udelay(10); + pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, 0); +} + static u8 sonypi_call1(u8 dev) { u8 v1, v2; @@ -1067,10 +1120,17 @@ static struct miscdevice sonypi_misc_device = { static void sonypi_enable(unsigned int camera_on) { - if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) - sonypi_type2_srs(); - else + switch (sonypi_device.model) { + case SONYPI_DEVICE_MODEL_TYPE1: sonypi_type1_srs(); + break; + case SONYPI_DEVICE_MODEL_TYPE2: + sonypi_type2_srs(); + break; + case SONYPI_DEVICE_MODEL_TYPE3: + sonypi_type3_srs(); + break; + } sonypi_call1(0x82); sonypi_call2(0x81, 0xff); @@ -1094,10 +1154,18 @@ static int sonypi_disable(void) if (!SONYPI_ACPI_ACTIVE && fnkeyinit) outb(0xf1, 0xb2); - if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) - sonypi_type2_dis(); - else + switch (sonypi_device.model) { + case SONYPI_DEVICE_MODEL_TYPE1: sonypi_type1_dis(); + break; + case SONYPI_DEVICE_MODEL_TYPE2: + sonypi_type2_dis(); + break; + case SONYPI_DEVICE_MODEL_TYPE3: + sonypi_type3_dis(); + break; + } + return 0; } @@ -1143,12 +1211,16 @@ static int __devinit sonypi_probe(void) struct sonypi_irq_list *irq_list; struct pci_dev *pcidev; - pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_3, NULL))) + sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE1; + else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_ICH6_1, NULL))) + sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3; + else + sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE2; sonypi_device.dev = pcidev; - sonypi_device.model = pcidev ? - SONYPI_DEVICE_MODEL_TYPE1 : SONYPI_DEVICE_MODEL_TYPE2; spin_lock_init(&sonypi_device.fifo_lock); sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL, @@ -1176,16 +1248,22 @@ static int __devinit sonypi_probe(void) goto out_miscreg; } - if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) { + + if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) { + ioport_list = sonypi_type1_ioport_list; + sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE; + sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET; + irq_list = sonypi_type1_irq_list; + } else if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) { ioport_list = sonypi_type2_ioport_list; sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE; sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET; irq_list = sonypi_type2_irq_list; } else { - ioport_list = sonypi_type1_ioport_list; - sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE; - sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET; - irq_list = sonypi_type1_irq_list; + ioport_list = sonypi_type3_ioport_list; + sonypi_device.region_size = SONYPI_TYPE3_REGION_SIZE; + sonypi_device.evtype_offset = SONYPI_TYPE3_EVTYPE_OFFSET; + irq_list = sonypi_type3_irq_list; } for (i = 0; ioport_list[i].port1; i++) { @@ -1274,11 +1352,10 @@ static int __devinit sonypi_probe(void) printk(KERN_INFO "sonypi: Sony Programmable I/O Controller Driver" "v%s.\n", SONYPI_DRIVER_VERSION); - printk(KERN_INFO "sonypi: detected %s model, " + printk(KERN_INFO "sonypi: detected type%d model, " "verbose = %d, fnkeyinit = %s, camera = %s, " "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s\n", - (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) ? - "type1" : "type2", + sonypi_device.model, verbose, fnkeyinit ? "on" : "off", camera ? "on" : "off", diff --git a/include/linux/sonypi.h b/include/linux/sonypi.h index 768cbba617d..f56d2473495 100644 --- a/include/linux/sonypi.h +++ b/include/linux/sonypi.h @@ -99,6 +99,8 @@ #define SONYPI_EVENT_BATTERY_INSERT 57 #define SONYPI_EVENT_BATTERY_REMOVE 58 #define SONYPI_EVENT_FNKEY_RELEASED 59 +#define SONYPI_EVENT_WIRELESS_ON 60 +#define SONYPI_EVENT_WIRELESS_OFF 61 /* get/set brightness */ #define SONYPI_IOCGBRT _IOR('v', 0, __u8) -- cgit v1.2.3-70-g09d2 From 6c54c28e69f2a374ad708fba37cbe1c5bb94e283 Mon Sep 17 00:00:00 2001 From: Abhay Salunke <Abhay_Salunke@dell.com> Date: Tue, 6 Sep 2005 15:17:14 -0700 Subject: [PATCH] dell_rbu: new Dell BIOS update driver Remote BIOS Update driver for updating BIOS images on Dell servers and desktops. See dell_rbu.txt for details. Signed-off-by: Abhay Salunke <Abhay_Salunke@dell.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/dell_rbu.txt | 74 ++++++ drivers/firmware/Kconfig | 9 + drivers/firmware/Makefile | 1 + drivers/firmware/dell_rbu.c | 634 ++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 718 insertions(+) create mode 100644 Documentation/dell_rbu.txt create mode 100644 drivers/firmware/dell_rbu.c (limited to 'Documentation') diff --git a/Documentation/dell_rbu.txt b/Documentation/dell_rbu.txt new file mode 100644 index 00000000000..bcfa5c35036 --- /dev/null +++ b/Documentation/dell_rbu.txt @@ -0,0 +1,74 @@ +Purpose: +Demonstrate the usage of the new open sourced rbu (Remote BIOS Update) driver +for updating BIOS images on Dell servers and desktops. + +Scope: +This document discusses the functionality of the rbu driver only. +It does not cover the support needed from aplications to enable the BIOS to +update itself with the image downloaded in to the memory. + +Overview: +This driver works with Dell OpenManage or Dell Update Packages for updating +the BIOS on Dell servers (starting from servers sold since 1999), desktops +and notebooks (starting from those sold in 2005). +Please go to http://support.dell.com register and you can find info on +OpenManage and Dell Update packages (DUP). + +Dell_RBU driver supports BIOS update using the monilothic image and packetized +image methods. In case of moniolithic the driver allocates a contiguous chunk +of physical pages having the BIOS image. In case of packetized the app +using the driver breaks the image in to packets of fixed sizes and the driver +would place each packet in contiguous physical memory. The driver also +maintains a link list of packets for reading them back. +If the dell_rbu driver is unloaded all the allocated memory is freed. + +The rbu driver needs to have an application which will inform the BIOS to +enable the update in the next system reboot. + +The user should not unload the rbu driver after downloading the BIOS image +or updating. + +The driver load creates the following directories under the /sys file system. +/sys/class/firmware/dell_rbu/loading +/sys/class/firmware/dell_rbu/data +/sys/devices/platform/dell_rbu/image_type +/sys/devices/platform/dell_rbu/data + +The driver supports two types of update mechanism; monolithic and packetized. +These update mechanism depends upon the BIOS currently running on the system. +Most of the Dell systems support a monolithic update where the BIOS image is +copied to a single contiguous block of physical memory. +In case of packet mechanism the single memory can be broken in smaller chuks +of contiguous memory and the BIOS image is scattered in these packets. + +By default the driver uses monolithic memory for the update type. This can be +changed to contiguous during the driver load time by specifying the load +parameter image_type=packet. This can also be changed later as below +echo packet > /sys/devices/platform/dell_rbu/image_type + +Do the steps below to download the BIOS image. +1) echo 1 > /sys/class/firmware/dell_rbu/loading +2) cp bios_image.hdr /sys/class/firmware/dell_rbu/data +3) echo 0 > /sys/class/firmware/dell_rbu/loading + +The /sys/class/firmware/dell_rbu/ entries will remain till the following is +done. +echo -1 > /sys/class/firmware/dell_rbu/loading + +Until this step is completed the drivr cannot be unloaded. + +Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to +read back the image downloaded. This is useful in case of packet update +mechanism where the above steps 1,2,3 will repeated for every packet. +By reading the /sys/devices/platform/dell_rbu/data file all packet data +downloaded can be verified in a single file. +The packets are arranged in this file one after the other in a FIFO order. + +NOTE: +This driver requires a patch for firmware_class.c which has the addition +of request_firmware_nowait_nohotplug function to wortk +Also after updating the BIOS image an user mdoe application neeeds to execute +code which message the BIOS update request to the BIOS. So on the next reboot +the BIOS knows about the new image downloaded and it updates it self. +Also don't unload the rbu drive if the image has to be updated. + diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 5b29c3b2a33..b9b6e4273f0 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -58,4 +58,13 @@ config EFI_PCDP See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf> +config DELL_RBU + tristate "BIOS update support for DELL systems via sysfs" + select FW_LOADER + help + Say m if you want to have the option of updating the BIOS for your + DELL system. Note you need a Dell OpenManage or Dell Update package (DUP) + supporting application to comunicate with the BIOS regarding the new + image for the image update to take effect. + See <file:Documentation/dell_rbu.txt> for more details on the driver. endmenu diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile index 90fd0b26db8..18613857298 100644 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_EDD) += edd.o obj-$(CONFIG_EFI_VARS) += efivars.o obj-$(CONFIG_EFI_PCDP) += pcdp.o +obj-$(CONFIG_DELL_RBU) += dell_rbu.o diff --git a/drivers/firmware/dell_rbu.c b/drivers/firmware/dell_rbu.c new file mode 100644 index 00000000000..3b865f34a09 --- /dev/null +++ b/drivers/firmware/dell_rbu.c @@ -0,0 +1,634 @@ +/* + * dell_rbu.c + * Bios Update driver for Dell systems + * Author: Dell Inc + * Abhay Salunke <abhay_salunke@dell.com> + * + * Copyright (C) 2005 Dell Inc. + * + * Remote BIOS Update (rbu) driver is used for updating DELL BIOS by + * creating entries in the /sys file systems on Linux 2.6 and higher + * kernels. The driver supports two mechanism to update the BIOS namely + * contiguous and packetized. Both these methods still require having some + * application to set the CMOS bit indicating the BIOS to update itself + * after a reboot. + * + * Contiguous method: + * This driver writes the incoming data in a monolithic image by allocating + * contiguous physical pages large enough to accommodate the incoming BIOS + * image size. + * + * Packetized method: + * The driver writes the incoming packet image by allocating a new packet + * on every time the packet data is written. This driver requires an + * application to break the BIOS image in to fixed sized packet chunks. + * + * See Documentation/dell_rbu.txt for more info. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2.0 as published by + * the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include <linux/version.h> +#include <linux/config.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/blkdev.h> +#include <linux/device.h> +#include <linux/spinlock.h> +#include <linux/moduleparam.h> +#include <linux/firmware.h> +#include <linux/dma-mapping.h> + +MODULE_AUTHOR("Abhay Salunke <abhay_salunke@dell.com>"); +MODULE_DESCRIPTION("Driver for updating BIOS image on DELL systems"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0"); + +#define BIOS_SCAN_LIMIT 0xffffffff +#define MAX_IMAGE_LENGTH 16 +static struct _rbu_data { + void *image_update_buffer; + unsigned long image_update_buffer_size; + unsigned long bios_image_size; + int image_update_ordernum; + int dma_alloc; + spinlock_t lock; + unsigned long packet_read_count; + unsigned long packet_write_count; + unsigned long num_packets; + unsigned long packetsize; +} rbu_data; + +static char image_type[MAX_IMAGE_LENGTH] = "mono"; +module_param_string(image_type, image_type, sizeof(image_type), 0); +MODULE_PARM_DESC(image_type, "BIOS image type. choose- mono or packet"); + +struct packet_data { + struct list_head list; + size_t length; + void *data; + int ordernum; +}; + +static struct packet_data packet_data_head; + +static struct platform_device *rbu_device; +static int context; +static dma_addr_t dell_rbu_dmaaddr; + +static void init_packet_head(void) +{ + INIT_LIST_HEAD(&packet_data_head.list); + rbu_data.packet_write_count = 0; + rbu_data.packet_read_count = 0; + rbu_data.num_packets = 0; + rbu_data.packetsize = 0; +} + +static int fill_last_packet(void *data, size_t length) +{ + struct list_head *ptemp_list; + struct packet_data *packet = NULL; + int packet_count = 0; + + pr_debug("fill_last_packet: entry \n"); + + if (!rbu_data.num_packets) { + pr_debug("fill_last_packet: num_packets=0\n"); + return -ENOMEM; + } + + packet_count = rbu_data.num_packets; + + ptemp_list = (&packet_data_head.list)->prev; + + packet = list_entry(ptemp_list, struct packet_data, list); + + if ((rbu_data.packet_write_count + length) > rbu_data.packetsize) { + pr_debug("dell_rbu:%s: packet size data " + "overrun\n", __FUNCTION__); + return -EINVAL; + } + + pr_debug("fill_last_packet : buffer = %p\n", packet->data); + + memcpy((packet->data + rbu_data.packet_write_count), data, length); + + if ((rbu_data.packet_write_count + length) == rbu_data.packetsize) { + /* + * this was the last data chunk in the packet + * so reinitialize the packet data counter to zero + */ + rbu_data.packet_write_count = 0; + } else + rbu_data.packet_write_count += length; + + pr_debug("fill_last_packet: exit \n"); + return 0; +} + +static int create_packet(size_t length) +{ + struct packet_data *newpacket; + int ordernum = 0; + + pr_debug("create_packet: entry \n"); + + if (!rbu_data.packetsize) { + pr_debug("create_packet: packetsize not specified\n"); + return -EINVAL; + } + + newpacket = kmalloc(sizeof(struct packet_data), GFP_KERNEL); + if (!newpacket) { + printk(KERN_WARNING + "dell_rbu:%s: failed to allocate new " + "packet\n", __FUNCTION__); + return -ENOMEM; + } + + ordernum = get_order(length); + /* + * there is no upper limit on memory + * address for packetized mechanism + */ + newpacket->data = (unsigned char *)__get_free_pages(GFP_KERNEL, + ordernum); + + pr_debug("create_packet: newpacket %p\n", newpacket->data); + + if (!newpacket->data) { + printk(KERN_WARNING + "dell_rbu:%s: failed to allocate new " + "packet\n", __FUNCTION__); + kfree(newpacket); + return -ENOMEM; + } + + newpacket->ordernum = ordernum; + ++rbu_data.num_packets; + /* + * initialize the newly created packet headers + */ + INIT_LIST_HEAD(&newpacket->list); + list_add_tail(&newpacket->list, &packet_data_head.list); + /* + * packets have fixed size + */ + newpacket->length = rbu_data.packetsize; + + pr_debug("create_packet: exit \n"); + + return 0; +} + +static int packetize_data(void *data, size_t length) +{ + int rc = 0; + + if (!rbu_data.packet_write_count) { + if ((rc = create_packet(length))) + return rc; + } + if ((rc = fill_last_packet(data, length))) + return rc; + + return rc; +} + +static int +do_packet_read(char *data, struct list_head *ptemp_list, + int length, int bytes_read, int *list_read_count) +{ + void *ptemp_buf; + struct packet_data *newpacket = NULL; + int bytes_copied = 0; + int j = 0; + + newpacket = list_entry(ptemp_list, struct packet_data, list); + *list_read_count += newpacket->length; + + if (*list_read_count > bytes_read) { + /* point to the start of unread data */ + j = newpacket->length - (*list_read_count - bytes_read); + /* point to the offset in the packet buffer */ + ptemp_buf = (u8 *) newpacket->data + j; + /* + * check if there is enough room in + * * the incoming buffer + */ + if (length > (*list_read_count - bytes_read)) + /* + * copy what ever is there in this + * packet and move on + */ + bytes_copied = (*list_read_count - bytes_read); + else + /* copy the remaining */ + bytes_copied = length; + memcpy(data, ptemp_buf, bytes_copied); + } + return bytes_copied; +} + +static int packet_read_list(char *data, size_t * pread_length) +{ + struct list_head *ptemp_list; + int temp_count = 0; + int bytes_copied = 0; + int bytes_read = 0; + int remaining_bytes = 0; + char *pdest = data; + + /* check if we have any packets */ + if (0 == rbu_data.num_packets) + return -ENOMEM; + + remaining_bytes = *pread_length; + bytes_read = rbu_data.packet_read_count; + + ptemp_list = (&packet_data_head.list)->next; + while (!list_empty(ptemp_list)) { + bytes_copied = do_packet_read(pdest, ptemp_list, + remaining_bytes, bytes_read, + &temp_count); + remaining_bytes -= bytes_copied; + bytes_read += bytes_copied; + pdest += bytes_copied; + /* + * check if we reached end of buffer before reaching the + * last packet + */ + if (remaining_bytes == 0) + break; + + ptemp_list = ptemp_list->next; + } + /*finally set the bytes read */ + *pread_length = bytes_read - rbu_data.packet_read_count; + rbu_data.packet_read_count = bytes_read; + return 0; +} + +static void packet_empty_list(void) +{ + struct list_head *ptemp_list; + struct list_head *pnext_list; + struct packet_data *newpacket; + + ptemp_list = (&packet_data_head.list)->next; + while (!list_empty(ptemp_list)) { + newpacket = + list_entry(ptemp_list, struct packet_data, list); + pnext_list = ptemp_list->next; + list_del(ptemp_list); + ptemp_list = pnext_list; + /* + * zero out the RBU packet memory before freeing + * to make sure there are no stale RBU packets left in memory + */ + memset(newpacket->data, 0, rbu_data.packetsize); + free_pages((unsigned long)newpacket->data, + newpacket->ordernum); + kfree(newpacket); + } + rbu_data.packet_write_count = 0; + rbu_data.packet_read_count = 0; + rbu_data.num_packets = 0; + rbu_data.packetsize = 0; +} + +/* + * img_update_free: Frees the buffer allocated for storing BIOS image + * Always called with lock held and returned with lock held + */ +static void img_update_free(void) +{ + if (!rbu_data.image_update_buffer) + return; + /* + * zero out this buffer before freeing it to get rid of any stale + * BIOS image copied in memory. + */ + memset(rbu_data.image_update_buffer, 0, + rbu_data.image_update_buffer_size); + if (rbu_data.dma_alloc == 1) + dma_free_coherent(NULL, rbu_data.bios_image_size, + rbu_data.image_update_buffer, + dell_rbu_dmaaddr); + else + free_pages((unsigned long)rbu_data.image_update_buffer, + rbu_data.image_update_ordernum); + + /* + * Re-initialize the rbu_data variables after a free + */ + rbu_data.image_update_ordernum = -1; + rbu_data.image_update_buffer = NULL; + rbu_data.image_update_buffer_size = 0; + rbu_data.bios_image_size = 0; + rbu_data.dma_alloc = 0; +} + +/* + * img_update_realloc: This function allocates the contiguous pages to + * accommodate the requested size of data. The memory address and size + * values are stored globally and on every call to this function the new + * size is checked to see if more data is required than the existing size. + * If true the previous memory is freed and new allocation is done to + * accommodate the new size. If the incoming size is less then than the + * already allocated size, then that memory is reused. This function is + * called with lock held and returns with lock held. + */ +static int img_update_realloc(unsigned long size) +{ + unsigned char *image_update_buffer = NULL; + unsigned long rc; + unsigned long img_buf_phys_addr; + int ordernum; + int dma_alloc = 0; + + /* + * check if the buffer of sufficient size has been + * already allocated + */ + if (rbu_data.image_update_buffer_size >= size) { + /* + * check for corruption + */ + if ((size != 0) && (rbu_data.image_update_buffer == NULL)) { + printk(KERN_ERR "dell_rbu:%s: corruption " + "check failed\n", __FUNCTION__); + return -EINVAL; + } + /* + * we have a valid pre-allocated buffer with + * sufficient size + */ + return 0; + } + + /* + * free any previously allocated buffer + */ + img_update_free(); + + spin_unlock(&rbu_data.lock); + + ordernum = get_order(size); + image_update_buffer = + (unsigned char *)__get_free_pages(GFP_KERNEL, ordernum); + + img_buf_phys_addr = + (unsigned long)virt_to_phys(image_update_buffer); + + if (img_buf_phys_addr > BIOS_SCAN_LIMIT) { + free_pages((unsigned long)image_update_buffer, ordernum); + ordernum = -1; + image_update_buffer = dma_alloc_coherent(NULL, size, + &dell_rbu_dmaaddr, + GFP_KERNEL); + dma_alloc = 1; + } + + spin_lock(&rbu_data.lock); + + if (image_update_buffer != NULL) { + rbu_data.image_update_buffer = image_update_buffer; + rbu_data.image_update_buffer_size = size; + rbu_data.bios_image_size = + rbu_data.image_update_buffer_size; + rbu_data.image_update_ordernum = ordernum; + rbu_data.dma_alloc = dma_alloc; + rc = 0; + } else { + pr_debug("Not enough memory for image update:" + "size = %ld\n", size); + rc = -ENOMEM; + } + + return rc; +} + +static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count) +{ + int retval; + size_t bytes_left; + size_t data_length; + char *ptempBuf = buffer; + unsigned long imagesize; + + /* check to see if we have something to return */ + if (rbu_data.num_packets == 0) { + pr_debug("read_packet_data: no packets written\n"); + retval = -ENOMEM; + goto read_rbu_data_exit; + } + + imagesize = rbu_data.num_packets * rbu_data.packetsize; + + if (pos > imagesize) { + retval = 0; + printk(KERN_WARNING "dell_rbu:read_packet_data: " + "data underrun\n"); + goto read_rbu_data_exit; + } + + bytes_left = imagesize - pos; + data_length = min(bytes_left, count); + + if ((retval = packet_read_list(ptempBuf, &data_length)) < 0) + goto read_rbu_data_exit; + + if ((pos + count) > imagesize) { + rbu_data.packet_read_count = 0; + /* this was the last copy */ + retval = bytes_left; + } else + retval = count; + + read_rbu_data_exit: + return retval; +} + +static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count) +{ + unsigned char *ptemp = NULL; + size_t bytes_left = 0; + size_t data_length = 0; + ssize_t ret_count = 0; + + /* check to see if we have something to return */ + if ((rbu_data.image_update_buffer == NULL) || + (rbu_data.bios_image_size == 0)) { + pr_debug("read_rbu_data_mono: image_update_buffer %p ," + "bios_image_size %lu\n", + rbu_data.image_update_buffer, + rbu_data.bios_image_size); + ret_count = -ENOMEM; + goto read_rbu_data_exit; + } + + if (pos > rbu_data.bios_image_size) { + ret_count = 0; + goto read_rbu_data_exit; + } + + bytes_left = rbu_data.bios_image_size - pos; + data_length = min(bytes_left, count); + + ptemp = rbu_data.image_update_buffer; + memcpy(buffer, (ptemp + pos), data_length); + + if ((pos + count) > rbu_data.bios_image_size) + /* this was the last copy */ + ret_count = bytes_left; + else + ret_count = count; + read_rbu_data_exit: + return ret_count; +} + +static ssize_t +read_rbu_data(struct kobject *kobj, char *buffer, loff_t pos, size_t count) +{ + ssize_t ret_count = 0; + + spin_lock(&rbu_data.lock); + + if (!strcmp(image_type, "mono")) + ret_count = read_rbu_mono_data(buffer, pos, count); + else if (!strcmp(image_type, "packet")) + ret_count = read_packet_data(buffer, pos, count); + else + pr_debug("read_rbu_data: invalid image type specified\n"); + + spin_unlock(&rbu_data.lock); + return ret_count; +} + +static ssize_t +read_rbu_image_type(struct kobject *kobj, char *buffer, loff_t pos, + size_t count) +{ + int size = 0; + if (!pos) + size = sprintf(buffer, "%s\n", image_type); + return size; +} + +static ssize_t +write_rbu_image_type(struct kobject *kobj, char *buffer, loff_t pos, + size_t count) +{ + int rc = count; + spin_lock(&rbu_data.lock); + + if (strlen(buffer) < MAX_IMAGE_LENGTH) + sscanf(buffer, "%s", image_type); + else + printk(KERN_WARNING "dell_rbu: image_type is invalid" + "max chars = %d, \n incoming str--%s-- \n", + MAX_IMAGE_LENGTH, buffer); + + /* we must free all previous allocations */ + packet_empty_list(); + img_update_free(); + + spin_unlock(&rbu_data.lock); + return rc; + +} + +static struct bin_attribute rbu_data_attr = { + .attr = {.name = "data",.owner = THIS_MODULE,.mode = 0444}, + .read = read_rbu_data, +}; + +static struct bin_attribute rbu_image_type_attr = { + .attr = {.name = "image_type",.owner = THIS_MODULE,.mode = 0644}, + .read = read_rbu_image_type, + .write = write_rbu_image_type, +}; + +static void callbackfn_rbu(const struct firmware *fw, void *context) +{ + int rc = 0; + + if (!fw || !fw->size) + return; + + spin_lock(&rbu_data.lock); + if (!strcmp(image_type, "mono")) { + if (!img_update_realloc(fw->size)) + memcpy(rbu_data.image_update_buffer, + fw->data, fw->size); + } else if (!strcmp(image_type, "packet")) { + if (!rbu_data.packetsize) + rbu_data.packetsize = fw->size; + else if (rbu_data.packetsize != fw->size) { + packet_empty_list(); + rbu_data.packetsize = fw->size; + } + packetize_data(fw->data, fw->size); + } else + pr_debug("invalid image type specified.\n"); + spin_unlock(&rbu_data.lock); + + rc = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG, + "dell_rbu", &rbu_device->dev, + &context, callbackfn_rbu); + if (rc) + printk(KERN_ERR + "dell_rbu:%s request_firmware_nowait failed" + " %d\n", __FUNCTION__, rc); +} + +static int __init dcdrbu_init(void) +{ + int rc = 0; + spin_lock_init(&rbu_data.lock); + + init_packet_head(); + rbu_device = + platform_device_register_simple("dell_rbu", -1, NULL, 0); + if (!rbu_device) { + printk(KERN_ERR + "dell_rbu:%s:platform_device_register_simple " + "failed\n", __FUNCTION__); + return -EIO; + } + + sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_data_attr); + sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_image_type_attr); + + rc = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG, + "dell_rbu", &rbu_device->dev, + &context, callbackfn_rbu); + if (rc) + printk(KERN_ERR "dell_rbu:%s:request_firmware_nowait" + " failed %d\n", __FUNCTION__, rc); + + return rc; + +} + +static __exit void dcdrbu_exit(void) +{ + spin_lock(&rbu_data.lock); + packet_empty_list(); + img_update_free(); + spin_unlock(&rbu_data.lock); + platform_device_unregister(rbu_device); +} + +module_exit(dcdrbu_exit); +module_init(dcdrbu_init); -- cgit v1.2.3-70-g09d2 From 90563ec4129f14d19f018240d1d3ff5c0e5e6392 Mon Sep 17 00:00:00 2001 From: Doug Warzecha <Douglas_Warzecha@dell.com> Date: Tue, 6 Sep 2005 15:17:15 -0700 Subject: [PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support This patch adds the Dell Systems Management Base Driver with sysfs support. This driver has been tested with Dell OpenManage. Signed-off-by: Doug Warzecha <Douglas_Warzecha@dell.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/dcdbas.txt | 91 +++++++ MAINTAINERS | 5 + drivers/firmware/Kconfig | 18 ++ drivers/firmware/Makefile | 1 + drivers/firmware/dcdbas.c | 596 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/firmware/dcdbas.h | 107 +++++++++ 6 files changed, 818 insertions(+) create mode 100644 Documentation/dcdbas.txt create mode 100644 drivers/firmware/dcdbas.c create mode 100644 drivers/firmware/dcdbas.h (limited to 'Documentation') diff --git a/Documentation/dcdbas.txt b/Documentation/dcdbas.txt new file mode 100644 index 00000000000..e1c52e2dc36 --- /dev/null +++ b/Documentation/dcdbas.txt @@ -0,0 +1,91 @@ +Overview + +The Dell Systems Management Base Driver provides a sysfs interface for +systems management software such as Dell OpenManage to perform system +management interrupts and host control actions (system power cycle or +power off after OS shutdown) on certain Dell systems. + +Dell OpenManage requires this driver on the following Dell PowerEdge systems: +300, 1300, 1400, 400SC, 500SC, 1500SC, 1550, 600SC, 1600SC, 650, 1655MC, +700, and 750. Other Dell software such as the open source libsmbios project +is expected to make use of this driver, and it may include the use of this +driver on other Dell systems. + +The Dell libsmbios project aims towards providing access to as much BIOS +information as possible. See http://linux.dell.com/libsmbios/main/ for +more information about the libsmbios project. + + +System Management Interrupt + +On some Dell systems, systems management software must access certain +management information via a system management interrupt (SMI). The SMI data +buffer must reside in 32-bit address space, and the physical address of the +buffer is required for the SMI. The driver maintains the memory required for +the SMI and provides a way for the application to generate the SMI. +The driver creates the following sysfs entries for systems management +software to perform these system management interrupts: + +/sys/devices/platform/dcdbas/smi_data +/sys/devices/platform/dcdbas/smi_data_buf_phys_addr +/sys/devices/platform/dcdbas/smi_data_buf_size +/sys/devices/platform/dcdbas/smi_request + +Systems management software must perform the following steps to execute +a SMI using this driver: + +1) Lock smi_data. +2) Write system management command to smi_data. +3) Write "1" to smi_request to generate a calling interface SMI or + "2" to generate a raw SMI. +4) Read system management command response from smi_data. +5) Unlock smi_data. + + +Host Control Action + +Dell OpenManage supports a host control feature that allows the administrator +to perform a power cycle or power off of the system after the OS has finished +shutting down. On some Dell systems, this host control feature requires that +a driver perform a SMI after the OS has finished shutting down. + +The driver creates the following sysfs entries for systems management software +to schedule the driver to perform a power cycle or power off host control +action after the system has finished shutting down: + +/sys/devices/platform/dcdbas/host_control_action +/sys/devices/platform/dcdbas/host_control_smi_type +/sys/devices/platform/dcdbas/host_control_on_shutdown + +Dell OpenManage performs the following steps to execute a power cycle or +power off host control action using this driver: + +1) Write host control action to be performed to host_control_action. +2) Write type of SMI that driver needs to perform to host_control_smi_type. +3) Write "1" to host_control_on_shutdown to enable host control action. +4) Initiate OS shutdown. + (Driver will perform host control SMI when it is notified that the OS + has finished shutting down.) + + +Host Control SMI Type + +The following table shows the value to write to host_control_smi_type to +perform a power cycle or power off host control action: + +PowerEdge System Host Control SMI Type +---------------- --------------------- + 300 HC_SMITYPE_TYPE1 + 1300 HC_SMITYPE_TYPE1 + 1400 HC_SMITYPE_TYPE2 + 500SC HC_SMITYPE_TYPE2 + 1500SC HC_SMITYPE_TYPE2 + 1550 HC_SMITYPE_TYPE2 + 600SC HC_SMITYPE_TYPE2 + 1600SC HC_SMITYPE_TYPE2 + 650 HC_SMITYPE_TYPE2 + 1655MC HC_SMITYPE_TYPE2 + 700 HC_SMITYPE_TYPE3 + 750 HC_SMITYPE_TYPE3 + + diff --git a/MAINTAINERS b/MAINTAINERS index 7e1f67130a1..1a35d335364 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -696,6 +696,11 @@ M: dz@debian.org W: http://www.debian.org/~dz/i8k/ S: Maintained +DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas) +P: Doug Warzecha +M: Douglas_Warzecha@dell.com +S: Maintained + DEVICE-MAPPER P: Alasdair Kergon L: dm-devel@redhat.com diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index b9b6e4273f0..327b58e6487 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -67,4 +67,22 @@ config DELL_RBU supporting application to comunicate with the BIOS regarding the new image for the image update to take effect. See <file:Documentation/dell_rbu.txt> for more details on the driver. + +config DCDBAS + tristate "Dell Systems Management Base Driver" + depends on X86 || X86_64 + default m + help + The Dell Systems Management Base Driver provides a sysfs interface + for systems management software to perform System Management + Interrupts (SMIs) and Host Control Actions (system power cycle or + power off after OS shutdown) on certain Dell systems. + + See <file:Documentation/dcdbas.txt> for more details on the driver + and the Dell systems on which Dell systems management software makes + use of this driver. + + Say Y or M here to enable the driver for use by Dell systems + management software such as Dell OpenManage. + endmenu diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile index 18613857298..85429979d0d 100644 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_EDD) += edd.o obj-$(CONFIG_EFI_VARS) += efivars.o obj-$(CONFIG_EFI_PCDP) += pcdp.o obj-$(CONFIG_DELL_RBU) += dell_rbu.o +obj-$(CONFIG_DCDBAS) += dcdbas.o diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c new file mode 100644 index 00000000000..955537fe995 --- /dev/null +++ b/drivers/firmware/dcdbas.c @@ -0,0 +1,596 @@ +/* + * dcdbas.c: Dell Systems Management Base Driver + * + * The Dell Systems Management Base Driver provides a sysfs interface for + * systems management software to perform System Management Interrupts (SMIs) + * and Host Control Actions (power cycle or power off after OS shutdown) on + * Dell systems. + * + * See Documentation/dcdbas.txt for more information. + * + * Copyright (C) 1995-2005 Dell Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2.0 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mc146818rtc.h> +#include <linux/module.h> +#include <linux/reboot.h> +#include <linux/sched.h> +#include <linux/smp.h> +#include <linux/spinlock.h> +#include <linux/string.h> +#include <linux/types.h> +#include <asm/io.h> +#include <asm/semaphore.h> + +#include "dcdbas.h" + +#define DRIVER_NAME "dcdbas" +#define DRIVER_VERSION "5.6.0-1" +#define DRIVER_DESCRIPTION "Dell Systems Management Base Driver" + +static struct platform_device *dcdbas_pdev; + +static u8 *smi_data_buf; +static dma_addr_t smi_data_buf_handle; +static unsigned long smi_data_buf_size; +static u32 smi_data_buf_phys_addr; +static DECLARE_MUTEX(smi_data_lock); + +static unsigned int host_control_action; +static unsigned int host_control_smi_type; +static unsigned int host_control_on_shutdown; + +/** + * smi_data_buf_free: free SMI data buffer + */ +static void smi_data_buf_free(void) +{ + if (!smi_data_buf) + return; + + dev_dbg(&dcdbas_pdev->dev, "%s: phys: %x size: %lu\n", + __FUNCTION__, smi_data_buf_phys_addr, smi_data_buf_size); + + dma_free_coherent(&dcdbas_pdev->dev, smi_data_buf_size, smi_data_buf, + smi_data_buf_handle); + smi_data_buf = NULL; + smi_data_buf_handle = 0; + smi_data_buf_phys_addr = 0; + smi_data_buf_size = 0; +} + +/** + * smi_data_buf_realloc: grow SMI data buffer if needed + */ +static int smi_data_buf_realloc(unsigned long size) +{ + void *buf; + dma_addr_t handle; + + if (smi_data_buf_size >= size) + return 0; + + if (size > MAX_SMI_DATA_BUF_SIZE) + return -EINVAL; + + /* new buffer is needed */ + buf = dma_alloc_coherent(&dcdbas_pdev->dev, size, &handle, GFP_KERNEL); + if (!buf) { + dev_dbg(&dcdbas_pdev->dev, + "%s: failed to allocate memory size %lu\n", + __FUNCTION__, size); + return -ENOMEM; + } + /* memory zeroed by dma_alloc_coherent */ + + if (smi_data_buf) + memcpy(buf, smi_data_buf, smi_data_buf_size); + + /* free any existing buffer */ + smi_data_buf_free(); + + /* set up new buffer for use */ + smi_data_buf = buf; + smi_data_buf_handle = handle; + smi_data_buf_phys_addr = (u32) virt_to_phys(buf); + smi_data_buf_size = size; + + dev_dbg(&dcdbas_pdev->dev, "%s: phys: %x size: %lu\n", + __FUNCTION__, smi_data_buf_phys_addr, smi_data_buf_size); + + return 0; +} + +static ssize_t smi_data_buf_phys_addr_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%x\n", smi_data_buf_phys_addr); +} + +static ssize_t smi_data_buf_size_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%lu\n", smi_data_buf_size); +} + +static ssize_t smi_data_buf_size_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long buf_size; + ssize_t ret; + + buf_size = simple_strtoul(buf, NULL, 10); + + /* make sure SMI data buffer is at least buf_size */ + down(&smi_data_lock); + ret = smi_data_buf_realloc(buf_size); + up(&smi_data_lock); + if (ret) + return ret; + + return count; +} + +static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos, + size_t count) +{ + size_t max_read; + ssize_t ret; + + down(&smi_data_lock); + + if (pos >= smi_data_buf_size) { + ret = 0; + goto out; + } + + max_read = smi_data_buf_size - pos; + ret = min(max_read, count); + memcpy(buf, smi_data_buf + pos, ret); +out: + up(&smi_data_lock); + return ret; +} + +static ssize_t smi_data_write(struct kobject *kobj, char *buf, loff_t pos, + size_t count) +{ + ssize_t ret; + + down(&smi_data_lock); + + ret = smi_data_buf_realloc(pos + count); + if (ret) + goto out; + + memcpy(smi_data_buf + pos, buf, count); + ret = count; +out: + up(&smi_data_lock); + return ret; +} + +static ssize_t host_control_action_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", host_control_action); +} + +static ssize_t host_control_action_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + ssize_t ret; + + /* make sure buffer is available for host control command */ + down(&smi_data_lock); + ret = smi_data_buf_realloc(sizeof(struct apm_cmd)); + up(&smi_data_lock); + if (ret) + return ret; + + host_control_action = simple_strtoul(buf, NULL, 10); + return count; +} + +static ssize_t host_control_smi_type_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", host_control_smi_type); +} + +static ssize_t host_control_smi_type_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + host_control_smi_type = simple_strtoul(buf, NULL, 10); + return count; +} + +static ssize_t host_control_on_shutdown_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", host_control_on_shutdown); +} + +static ssize_t host_control_on_shutdown_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + host_control_on_shutdown = simple_strtoul(buf, NULL, 10); + return count; +} + +/** + * smi_request: generate SMI request + * + * Called with smi_data_lock. + */ +static int smi_request(struct smi_cmd *smi_cmd) +{ + cpumask_t old_mask; + int ret = 0; + + if (smi_cmd->magic != SMI_CMD_MAGIC) { + dev_info(&dcdbas_pdev->dev, "%s: invalid magic value\n", + __FUNCTION__); + return -EBADR; + } + + /* SMI requires CPU 0 */ + old_mask = current->cpus_allowed; + set_cpus_allowed(current, cpumask_of_cpu(0)); + if (smp_processor_id() != 0) { + dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n", + __FUNCTION__); + ret = -EBUSY; + goto out; + } + + /* generate SMI */ + asm volatile ( + "outb %b0,%w1" + : /* no output args */ + : "a" (smi_cmd->command_code), + "d" (smi_cmd->command_address), + "b" (smi_cmd->ebx), + "c" (smi_cmd->ecx) + : "memory" + ); + +out: + set_cpus_allowed(current, old_mask); + return ret; +} + +/** + * smi_request_store: + * + * The valid values are: + * 0: zero SMI data buffer + * 1: generate calling interface SMI + * 2: generate raw SMI + * + * User application writes smi_cmd to smi_data before telling driver + * to generate SMI. + */ +static ssize_t smi_request_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct smi_cmd *smi_cmd; + unsigned long val = simple_strtoul(buf, NULL, 10); + ssize_t ret; + + down(&smi_data_lock); + + if (smi_data_buf_size < sizeof(struct smi_cmd)) { + ret = -ENODEV; + goto out; + } + smi_cmd = (struct smi_cmd *)smi_data_buf; + + switch (val) { + case 2: + /* Raw SMI */ + ret = smi_request(smi_cmd); + if (!ret) + ret = count; + break; + case 1: + /* Calling Interface SMI */ + smi_cmd->ebx = (u32) virt_to_phys(smi_cmd->command_buffer); + ret = smi_request(smi_cmd); + if (!ret) + ret = count; + break; + case 0: + memset(smi_data_buf, 0, smi_data_buf_size); + ret = count; + break; + default: + ret = -EINVAL; + break; + } + +out: + up(&smi_data_lock); + return ret; +} + +/** + * host_control_smi: generate host control SMI + * + * Caller must set up the host control command in smi_data_buf. + */ +static int host_control_smi(void) +{ + struct apm_cmd *apm_cmd; + u8 *data; + unsigned long flags; + u32 num_ticks; + s8 cmd_status; + u8 index; + + apm_cmd = (struct apm_cmd *)smi_data_buf; + apm_cmd->status = ESM_STATUS_CMD_UNSUCCESSFUL; + + switch (host_control_smi_type) { + case HC_SMITYPE_TYPE1: + spin_lock_irqsave(&rtc_lock, flags); + /* write SMI data buffer physical address */ + data = (u8 *)&smi_data_buf_phys_addr; + for (index = PE1300_CMOS_CMD_STRUCT_PTR; + index < (PE1300_CMOS_CMD_STRUCT_PTR + 4); + index++, data++) { + outb(index, + (CMOS_BASE_PORT + CMOS_PAGE2_INDEX_PORT_PIIX4)); + outb(*data, + (CMOS_BASE_PORT + CMOS_PAGE2_DATA_PORT_PIIX4)); + } + + /* first set status to -1 as called by spec */ + cmd_status = ESM_STATUS_CMD_UNSUCCESSFUL; + outb((u8) cmd_status, PCAT_APM_STATUS_PORT); + + /* generate SMM call */ + outb(ESM_APM_CMD, PCAT_APM_CONTROL_PORT); + spin_unlock_irqrestore(&rtc_lock, flags); + + /* wait a few to see if it executed */ + num_ticks = TIMEOUT_USEC_SHORT_SEMA_BLOCKING; + while ((cmd_status = inb(PCAT_APM_STATUS_PORT)) + == ESM_STATUS_CMD_UNSUCCESSFUL) { + num_ticks--; + if (num_ticks == EXPIRED_TIMER) + return -ETIME; + } + break; + + case HC_SMITYPE_TYPE2: + case HC_SMITYPE_TYPE3: + spin_lock_irqsave(&rtc_lock, flags); + /* write SMI data buffer physical address */ + data = (u8 *)&smi_data_buf_phys_addr; + for (index = PE1400_CMOS_CMD_STRUCT_PTR; + index < (PE1400_CMOS_CMD_STRUCT_PTR + 4); + index++, data++) { + outb(index, (CMOS_BASE_PORT + CMOS_PAGE1_INDEX_PORT)); + outb(*data, (CMOS_BASE_PORT + CMOS_PAGE1_DATA_PORT)); + } + + /* generate SMM call */ + if (host_control_smi_type == HC_SMITYPE_TYPE3) + outb(ESM_APM_CMD, PCAT_APM_CONTROL_PORT); + else + outb(ESM_APM_CMD, PE1400_APM_CONTROL_PORT); + + /* restore RTC index pointer since it was written to above */ + CMOS_READ(RTC_REG_C); + spin_unlock_irqrestore(&rtc_lock, flags); + + /* read control port back to serialize write */ + cmd_status = inb(PE1400_APM_CONTROL_PORT); + + /* wait a few to see if it executed */ + num_ticks = TIMEOUT_USEC_SHORT_SEMA_BLOCKING; + while (apm_cmd->status == ESM_STATUS_CMD_UNSUCCESSFUL) { + num_ticks--; + if (num_ticks == EXPIRED_TIMER) + return -ETIME; + } + break; + + default: + dev_dbg(&dcdbas_pdev->dev, "%s: invalid SMI type %u\n", + __FUNCTION__, host_control_smi_type); + return -ENOSYS; + } + + return 0; +} + +/** + * dcdbas_host_control: initiate host control + * + * This function is called by the driver after the system has + * finished shutting down if the user application specified a + * host control action to perform on shutdown. It is safe to + * use smi_data_buf at this point because the system has finished + * shutting down and no userspace apps are running. + */ +static void dcdbas_host_control(void) +{ + struct apm_cmd *apm_cmd; + u8 action; + + if (host_control_action == HC_ACTION_NONE) + return; + + action = host_control_action; + host_control_action = HC_ACTION_NONE; + + if (!smi_data_buf) { + dev_dbg(&dcdbas_pdev->dev, "%s: no SMI buffer\n", __FUNCTION__); + return; + } + + if (smi_data_buf_size < sizeof(struct apm_cmd)) { + dev_dbg(&dcdbas_pdev->dev, "%s: SMI buffer too small\n", + __FUNCTION__); + return; + } + + apm_cmd = (struct apm_cmd *)smi_data_buf; + + /* power off takes precedence */ + if (action & HC_ACTION_HOST_CONTROL_POWEROFF) { + apm_cmd->command = ESM_APM_POWER_CYCLE; + apm_cmd->reserved = 0; + *((s16 *)&apm_cmd->parameters.shortreq.parm[0]) = (s16) 0; + host_control_smi(); + } else if (action & HC_ACTION_HOST_CONTROL_POWERCYCLE) { + apm_cmd->command = ESM_APM_POWER_CYCLE; + apm_cmd->reserved = 0; + *((s16 *)&apm_cmd->parameters.shortreq.parm[0]) = (s16) 20; + host_control_smi(); + } +} + +/** + * dcdbas_reboot_notify: handle reboot notification for host control + */ +static int dcdbas_reboot_notify(struct notifier_block *nb, unsigned long code, + void *unused) +{ + static unsigned int notify_cnt = 0; + + switch (code) { + case SYS_DOWN: + case SYS_HALT: + case SYS_POWER_OFF: + if (host_control_on_shutdown) { + /* firmware is going to perform host control action */ + if (++notify_cnt == 2) { + printk(KERN_WARNING + "Please wait for shutdown " + "action to complete...\n"); + dcdbas_host_control(); + } + /* + * register again and initiate the host control + * action on the second notification to allow + * everyone that registered to be notified + */ + register_reboot_notifier(nb); + } + break; + } + + return NOTIFY_DONE; +} + +static struct notifier_block dcdbas_reboot_nb = { + .notifier_call = dcdbas_reboot_notify, + .next = NULL, + .priority = 0 +}; + +static DCDBAS_BIN_ATTR_RW(smi_data); + +static struct bin_attribute *dcdbas_bin_attrs[] = { + &bin_attr_smi_data, + NULL +}; + +static DCDBAS_DEV_ATTR_RW(smi_data_buf_size); +static DCDBAS_DEV_ATTR_RO(smi_data_buf_phys_addr); +static DCDBAS_DEV_ATTR_WO(smi_request); +static DCDBAS_DEV_ATTR_RW(host_control_action); +static DCDBAS_DEV_ATTR_RW(host_control_smi_type); +static DCDBAS_DEV_ATTR_RW(host_control_on_shutdown); + +static struct device_attribute *dcdbas_dev_attrs[] = { + &dev_attr_smi_data_buf_size, + &dev_attr_smi_data_buf_phys_addr, + &dev_attr_smi_request, + &dev_attr_host_control_action, + &dev_attr_host_control_smi_type, + &dev_attr_host_control_on_shutdown, + NULL +}; + +/** + * dcdbas_init: initialize driver + */ +static int __init dcdbas_init(void) +{ + int i; + + host_control_action = HC_ACTION_NONE; + host_control_smi_type = HC_SMITYPE_NONE; + + dcdbas_pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); + if (IS_ERR(dcdbas_pdev)) + return PTR_ERR(dcdbas_pdev); + + /* + * BIOS SMI calls require buffer addresses be in 32-bit address space. + * This is done by setting the DMA mask below. + */ + dcdbas_pdev->dev.coherent_dma_mask = DMA_32BIT_MASK; + dcdbas_pdev->dev.dma_mask = &dcdbas_pdev->dev.coherent_dma_mask; + + register_reboot_notifier(&dcdbas_reboot_nb); + + for (i = 0; dcdbas_bin_attrs[i]; i++) + sysfs_create_bin_file(&dcdbas_pdev->dev.kobj, + dcdbas_bin_attrs[i]); + + for (i = 0; dcdbas_dev_attrs[i]; i++) + device_create_file(&dcdbas_pdev->dev, dcdbas_dev_attrs[i]); + + dev_info(&dcdbas_pdev->dev, "%s (version %s)\n", + DRIVER_DESCRIPTION, DRIVER_VERSION); + + return 0; +} + +/** + * dcdbas_exit: perform driver cleanup + */ +static void __exit dcdbas_exit(void) +{ + platform_device_unregister(dcdbas_pdev); + unregister_reboot_notifier(&dcdbas_reboot_nb); + smi_data_buf_free(); +} + +module_init(dcdbas_init); +module_exit(dcdbas_exit); + +MODULE_DESCRIPTION(DRIVER_DESCRIPTION " (version " DRIVER_VERSION ")"); +MODULE_VERSION(DRIVER_VERSION); +MODULE_AUTHOR("Dell Inc."); +MODULE_LICENSE("GPL"); + diff --git a/drivers/firmware/dcdbas.h b/drivers/firmware/dcdbas.h new file mode 100644 index 00000000000..58a85182b3e --- /dev/null +++ b/drivers/firmware/dcdbas.h @@ -0,0 +1,107 @@ +/* + * dcdbas.h: Definitions for Dell Systems Management Base driver + * + * Copyright (C) 1995-2005 Dell Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2.0 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _DCDBAS_H_ +#define _DCDBAS_H_ + +#include <linux/device.h> +#include <linux/input.h> +#include <linux/sysfs.h> +#include <linux/types.h> + +#define MAX_SMI_DATA_BUF_SIZE (256 * 1024) + +#define HC_ACTION_NONE (0) +#define HC_ACTION_HOST_CONTROL_POWEROFF BIT(1) +#define HC_ACTION_HOST_CONTROL_POWERCYCLE BIT(2) + +#define HC_SMITYPE_NONE (0) +#define HC_SMITYPE_TYPE1 (1) +#define HC_SMITYPE_TYPE2 (2) +#define HC_SMITYPE_TYPE3 (3) + +#define ESM_APM_CMD (0x0A0) +#define ESM_APM_POWER_CYCLE (0x10) +#define ESM_STATUS_CMD_UNSUCCESSFUL (-1) + +#define CMOS_BASE_PORT (0x070) +#define CMOS_PAGE1_INDEX_PORT (0) +#define CMOS_PAGE1_DATA_PORT (1) +#define CMOS_PAGE2_INDEX_PORT_PIIX4 (2) +#define CMOS_PAGE2_DATA_PORT_PIIX4 (3) +#define PE1400_APM_CONTROL_PORT (0x0B0) +#define PCAT_APM_CONTROL_PORT (0x0B2) +#define PCAT_APM_STATUS_PORT (0x0B3) +#define PE1300_CMOS_CMD_STRUCT_PTR (0x38) +#define PE1400_CMOS_CMD_STRUCT_PTR (0x70) + +#define MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN (14) +#define MAX_SYSMGMT_LONGCMD_SGENTRY_NUM (16) + +#define TIMEOUT_USEC_SHORT_SEMA_BLOCKING (10000) +#define EXPIRED_TIMER (0) + +#define SMI_CMD_MAGIC (0x534D4931) + +#define DCDBAS_DEV_ATTR_RW(_name) \ + DEVICE_ATTR(_name,0600,_name##_show,_name##_store); + +#define DCDBAS_DEV_ATTR_RO(_name) \ + DEVICE_ATTR(_name,0400,_name##_show,NULL); + +#define DCDBAS_DEV_ATTR_WO(_name) \ + DEVICE_ATTR(_name,0200,NULL,_name##_store); + +#define DCDBAS_BIN_ATTR_RW(_name) \ +struct bin_attribute bin_attr_##_name = { \ + .attr = { .name = __stringify(_name), \ + .mode = 0600, \ + .owner = THIS_MODULE }, \ + .read = _name##_read, \ + .write = _name##_write, \ +} + +struct smi_cmd { + __u32 magic; + __u32 ebx; + __u32 ecx; + __u16 command_address; + __u8 command_code; + __u8 reserved; + __u8 command_buffer[1]; +} __attribute__ ((packed)); + +struct apm_cmd { + __u8 command; + __s8 status; + __u16 reserved; + union { + struct { + __u8 parm[MAX_SYSMGMT_SHORTCMD_PARMBUF_LEN]; + } __attribute__ ((packed)) shortreq; + + struct { + __u16 num_sg_entries; + struct { + __u32 size; + __u64 addr; + } __attribute__ ((packed)) + sglist[MAX_SYSMGMT_LONGCMD_SGENTRY_NUM]; + } __attribute__ ((packed)) longreq; + } __attribute__ ((packed)) parameters; +} __attribute__ ((packed)); + +#endif /* _DCDBAS_H_ */ + -- cgit v1.2.3-70-g09d2 From ffdfc40976dda18d923cd001d44bf0ee55da1af4 Mon Sep 17 00:00:00 2001 From: Olof Johansson <olof@lixom.net> Date: Tue, 6 Sep 2005 15:17:19 -0700 Subject: [PATCH] Add rdinit parameter to pick early userspace init Since early userspace was added, there's no way to override which init to run from it. Some people tack on an extra cpio archive with a link from /init depending on what they want to run, but that's sometimes impractical. Changing the "init=" to also override the early userspace isn't feasible, since it is still used to indicate what init to run from disk when early userspace has completed doing whatever it's doing (i.e. load filesystem modules and drivers). Instead, introduce "rdinit=" and make it override the default "/init" if specified. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/kernel-parameters.txt | 5 +++++ init/main.c | 31 +++++++++++++++++++++++++++---- 2 files changed, 32 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 3d5cd7a09b2..d2f0c67ba1f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1174,6 +1174,11 @@ running once the system is up. New name for the ramdisk parameter. See Documentation/ramdisk.txt. + rdinit= [KNL] + Format: <full_path> + Run specified binary instead of /init from the ramdisk, + used for early userspace startup. See initrd. + reboot= [BUGS=IA-32,BUGS=ARM,BUGS=IA-64] Rebooting mode Format: <reboot_mode>[,<reboot_mode2>[,...]] See arch/*/kernel/reboot.c. diff --git a/init/main.c b/init/main.c index e4dbcbcd26c..f142d403534 100644 --- a/init/main.c +++ b/init/main.c @@ -123,6 +123,7 @@ extern void softirq_init(void); char saved_command_line[COMMAND_LINE_SIZE]; static char *execute_command; +static char *ramdisk_execute_command; /* Setup configured maximum number of CPUs to activate */ static unsigned int max_cpus = NR_CPUS; @@ -297,6 +298,18 @@ static int __init init_setup(char *str) } __setup("init=", init_setup); +static int __init rdinit_setup(char *str) +{ + unsigned int i; + + ramdisk_execute_command = str; + /* See "auto" comment in init_setup */ + for (i = 1; i < MAX_INIT_ARGS; i++) + argv_init[i] = NULL; + return 1; +} +__setup("rdinit=", rdinit_setup); + extern void setup_arch(char **); #ifndef CONFIG_SMP @@ -681,10 +694,14 @@ static int init(void * unused) * check if there is an early userspace init. If yes, let it do all * the work */ - if (sys_access((const char __user *) "/init", 0) == 0) - execute_command = "/init"; - else + + if (!ramdisk_execute_command) + ramdisk_execute_command = "/init"; + + if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { + ramdisk_execute_command = NULL; prepare_namespace(); + } /* * Ok, we have completed the initial bootup, and @@ -701,7 +718,13 @@ static int init(void * unused) (void) sys_dup(0); (void) sys_dup(0); - + + if (ramdisk_execute_command) { + run_init_process(ramdisk_execute_command); + printk(KERN_WARNING "Failed to execute %s\n", + ramdisk_execute_command); + } + /* * We try each of these until one succeeds. * -- cgit v1.2.3-70-g09d2 From f8eeaaf4180334a8e5c3582fe62a5f8176a8c124 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" <hpa@zytor.com> Date: Tue, 6 Sep 2005 15:17:24 -0700 Subject: [PATCH] Make the bzImage format self-terminating Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Frank Sorenson <frank@tuxrocks.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/i386/boot.txt | 35 ++++++++++++++++++++++------------- arch/i386/boot/setup.S | 2 +- arch/i386/boot/tools/build.c | 4 +++- arch/x86_64/boot/setup.S | 2 +- arch/x86_64/boot/tools/build.c | 4 +++- 5 files changed, 30 insertions(+), 17 deletions(-) (limited to 'Documentation') diff --git a/Documentation/i386/boot.txt b/Documentation/i386/boot.txt index 1c48f0eba6f..10312bebe55 100644 --- a/Documentation/i386/boot.txt +++ b/Documentation/i386/boot.txt @@ -2,7 +2,7 @@ ---------------------------- H. Peter Anvin <hpa@zytor.com> - Last update 2002-01-01 + Last update 2005-09-02 On the i386 platform, the Linux kernel uses a rather complicated boot convention. This has evolved partially due to historical aspects, as @@ -34,6 +34,8 @@ Protocol 2.02: (Kernel 2.4.0-test3-pre3) New command line protocol. Protocol 2.03: (Kernel 2.4.18-pre1) Explicitly makes the highest possible initrd address available to the bootloader. +Protocol 2.04: (Kernel 2.6.14) Extend the syssize field to four bytes. + **** MEMORY LAYOUT @@ -103,10 +105,9 @@ The header looks like: Offset Proto Name Meaning /Size -01F1/1 ALL setup_sects The size of the setup in sectors +01F1/1 ALL(1 setup_sects The size of the setup in sectors 01F2/2 ALL root_flags If set, the root is mounted readonly -01F4/2 ALL syssize DO NOT USE - for bootsect.S use only -01F6/2 ALL swap_dev DO NOT USE - obsolete +01F4/4 2.04+(2 syssize The size of the 32-bit code in 16-byte paras 01F8/2 ALL ram_size DO NOT USE - for bootsect.S use only 01FA/2 ALL vid_mode Video mode control 01FC/2 ALL root_dev Default root device number @@ -129,8 +130,12 @@ Offset Proto Name Meaning 0228/4 2.02+ cmd_line_ptr 32-bit pointer to the kernel command line 022C/4 2.03+ initrd_addr_max Highest legal initrd address -For backwards compatibility, if the setup_sects field contains 0, the -real value is 4. +(1) For backwards compatibility, if the setup_sects field contains 0, the + real value is 4. + +(2) For boot protocol prior to 2.04, the upper two bytes of the syssize + field are unusable, which means the size of a bzImage kernel + cannot be determined. If the "HdrS" (0x53726448) magic number is not found at offset 0x202, the boot protocol version is "old". Loading an old kernel, the @@ -230,12 +235,16 @@ loader to communicate with the kernel. Some of its options are also relevant to the boot loader itself, see "special command line options" below. -The kernel command line is a null-terminated string up to 255 -characters long, plus the final null. +The kernel command line is a null-terminated string currently up to +255 characters long, plus the final null. A string that is too long +will be automatically truncated by the kernel, a boot loader may allow +a longer command line to be passed to permit future kernels to extend +this limit. If the boot protocol version is 2.02 or later, the address of the kernel command line is given by the header field cmd_line_ptr (see -above.) +above.) This address can be anywhere between the end of the setup +heap and 0xA0000. If the protocol version is *not* 2.02 or higher, the kernel command line is entered using the following protocol: @@ -255,7 +264,7 @@ command line is entered using the following protocol: **** SAMPLE BOOT CONFIGURATION As a sample configuration, assume the following layout of the real -mode segment: +mode segment (this is a typical, and recommended layout): 0x0000-0x7FFF Real mode kernel 0x8000-0x8FFF Stack and heap @@ -312,9 +321,9 @@ Such a boot loader should enter the following fields in the header: **** LOADING THE REST OF THE KERNEL -The non-real-mode kernel starts at offset (setup_sects+1)*512 in the -kernel file (again, if setup_sects == 0 the real value is 4.) It -should be loaded at address 0x10000 for Image/zImage kernels and +The 32-bit (non-real-mode) kernel starts at offset (setup_sects+1)*512 +in the kernel file (again, if setup_sects == 0 the real value is 4.) +It should be loaded at address 0x10000 for Image/zImage kernels and 0x100000 for bzImage kernels. The kernel is a bzImage kernel if the protocol >= 2.00 and the 0x01 diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S index 8cb420f40c5..ca668d9df16 100644 --- a/arch/i386/boot/setup.S +++ b/arch/i386/boot/setup.S @@ -82,7 +82,7 @@ start: # This is the setup header, and it must start at %cs:2 (old 0x9020:2) .ascii "HdrS" # header signature - .word 0x0203 # header version number (>= 0x0105) + .word 0x0204 # header version number (>= 0x0105) # or else old loadlin-1.5 will fail) realmode_swtch: .word 0, 0 # default_switch, SETUPSEG start_sys_seg: .word SYSSEG diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c index 6835f6d47c3..05798419a6a 100644 --- a/arch/i386/boot/tools/build.c +++ b/arch/i386/boot/tools/build.c @@ -177,7 +177,9 @@ int main(int argc, char ** argv) die("Output: seek failed"); buf[0] = (sys_size & 0xff); buf[1] = ((sys_size >> 8) & 0xff); - if (write(1, buf, 2) != 2) + buf[2] = ((sys_size >> 16) & 0xff); + buf[3] = ((sys_size >> 24) & 0xff); + if (write(1, buf, 4) != 4) die("Write of image length failed"); return 0; /* Everything is OK */ diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S index ff58b2832b7..12ea0b6c52e 100644 --- a/arch/x86_64/boot/setup.S +++ b/arch/x86_64/boot/setup.S @@ -81,7 +81,7 @@ start: # This is the setup header, and it must start at %cs:2 (old 0x9020:2) .ascii "HdrS" # header signature - .word 0x0203 # header version number (>= 0x0105) + .word 0x0204 # header version number (>= 0x0105) # or else old loadlin-1.5 will fail) realmode_swtch: .word 0, 0 # default_switch, SETUPSEG start_sys_seg: .word SYSSEG diff --git a/arch/x86_64/boot/tools/build.c b/arch/x86_64/boot/tools/build.c index 18b5bac1c42..c44f5e2ec10 100644 --- a/arch/x86_64/boot/tools/build.c +++ b/arch/x86_64/boot/tools/build.c @@ -178,7 +178,9 @@ int main(int argc, char ** argv) die("Output: seek failed"); buf[0] = (sys_size & 0xff); buf[1] = ((sys_size >> 8) & 0xff); - if (write(1, buf, 2) != 2) + buf[2] = ((sys_size >> 16) & 0xff); + buf[3] = ((sys_size >> 24) & 0xff); + if (write(1, buf, 4) != 4) die("Write of image length failed"); return 0; /* Everything is OK */ -- cgit v1.2.3-70-g09d2 From 720a845911097cea1394fe7abb2c9efa76e32715 Mon Sep 17 00:00:00 2001 From: Jesper Juhl <jesper.juhl@gmail.com> Date: Tue, 6 Sep 2005 15:17:50 -0700 Subject: [PATCH] remove verify_area(): remove or edit references to verify_area in Documentation/ Remove (or edit) remaining references to the now dead verify_area() function from files in Documentation/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/cdrom/sonycd535 | 3 ++- Documentation/exception.txt | 2 +- Documentation/feature-removal-schedule.txt | 8 -------- 3 files changed, 3 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cdrom/sonycd535 b/Documentation/cdrom/sonycd535 index 59581a4b302..b81e109970a 100644 --- a/Documentation/cdrom/sonycd535 +++ b/Documentation/cdrom/sonycd535 @@ -68,7 +68,8 @@ it a better device citizen. Further thanks to Joel Katz Porfiri Claudio <C.Porfiri@nisms.tei.ericsson.se> for patches to make the driver work with the older CDU-510/515 series, and Heiko Eissfeldt <heiko@colossus.escape.de> for pointing out that -the verify_area() checks were ignoring the results of said checks. +the verify_area() checks were ignoring the results of said checks +(note: verify_area() has since been replaced by access_ok()). (Acknowledgments from Ron Jeppesen in the 0.3 release:) Thanks to Corey Minyard who wrote the original CDU-31A driver on which diff --git a/Documentation/exception.txt b/Documentation/exception.txt index f1d436993eb..3cb39ade290 100644 --- a/Documentation/exception.txt +++ b/Documentation/exception.txt @@ -7,7 +7,7 @@ To protect itself the kernel has to verify this address. In older versions of Linux this was done with the int verify_area(int type, const void * addr, unsigned long size) -function. +function (which has since been replaced by access_ok()). This function verified that the memory area starting at address addr and of size size was accessible for the operation specified diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 95e74435312..2e0a01b21fe 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -66,14 +66,6 @@ Who: Paul E. McKenney <paulmck@us.ibm.com> --------------------------- -What: remove verify_area() -When: July 2006 -Files: Various uaccess.h headers. -Why: Deprecated and redundant. access_ok() should be used instead. -Who: Jesper Juhl <juhl-lkml@dif.dk> - ---------------------------- - What: IEEE1394 Audio and Music Data Transmission Protocol driver, Connection Management Procedures driver When: November 2005 -- cgit v1.2.3-70-g09d2 From 9bf2229f8817677127a60c177aefce1badd22d7b Mon Sep 17 00:00:00 2001 From: Paul Jackson <pj@sgi.com> Date: Tue, 6 Sep 2005 15:18:12 -0700 Subject: [PATCH] cpusets: formalize intermediate GFP_KERNEL containment This patch makes use of the previously underutilized cpuset flag 'mem_exclusive' to provide what amounts to another layer of memory placement resolution. With this patch, there are now the following four layers of memory placement available: 1) The whole system (interrupt and GFP_ATOMIC allocations can use this), 2) The nearest enclosing mem_exclusive cpuset (GFP_KERNEL allocations can use), 3) The current tasks cpuset (GFP_USER allocations constrained to here), and 4) Specific node placement, using mbind and set_mempolicy. These nest - each layer is a subset (same or within) of the previous. Layer (2) above is new, with this patch. The call used to check whether a zone (its node, actually) is in a cpuset (in its mems_allowed, actually) is extended to take a gfp_mask argument, and its logic is extended, in the case that __GFP_HARDWALL is not set in the flag bits, to look up the cpuset hierarchy for the nearest enclosing mem_exclusive cpuset, to determine if placement is allowed. The definition of GFP_USER, which used to be identical to GFP_KERNEL, is changed to also set the __GFP_HARDWALL bit, in the previous cpuset_gfp_hardwall_flag patch. GFP_ATOMIC and GFP_KERNEL allocations will stay within the current tasks cpuset, so long as any node therein is not too tight on memory, but will escape to the larger layer, if need be. The intended use is to allow something like a batch manager to handle several jobs, each job in its own cpuset, but using common kernel memory for caches and such. Swapper and oom_kill activity is also constrained to Layer (2). A task in or below one mem_exclusive cpuset should not cause swapping on nodes in another non-overlapping mem_exclusive cpuset, nor provoke oom_killing of a task in another such cpuset. Heavy use of kernel memory for i/o caching and such by one job should not impact the memory available to jobs in other non-overlapping mem_exclusive cpusets. This patch enables providing hardwall, inescapable cpusets for memory allocations of each job, while sharing kernel memory allocations between several jobs, in an enclosing mem_exclusive cpuset. Like Dinakar's patch earlier to enable administering sched domains using the cpu_exclusive flag, this patch also provides a useful meaning to a cpuset flag that had previously done nothing much useful other than restrict what cpuset configurations were allowed. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/cpusets.txt | 12 +++++++ include/linux/cpuset.h | 5 +-- kernel/cpuset.c | 80 ++++++++++++++++++++++++++++++++++++++++++----- mm/page_alloc.c | 16 ++++++---- mm/vmscan.c | 8 ++--- 5 files changed, 101 insertions(+), 20 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt index ad944c06031..47f4114fbf5 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cpusets.txt @@ -60,6 +60,18 @@ all of the cpus in the system. This removes any overhead due to load balancing code trying to pull tasks outside of the cpu exclusive cpuset only to be prevented by the tasks' cpus_allowed mask. +A cpuset that is mem_exclusive restricts kernel allocations for +page, buffer and other data commonly shared by the kernel across +multiple users. All cpusets, whether mem_exclusive or not, restrict +allocations of memory for user space. This enables configuring a +system so that several independent jobs can share common kernel +data, such as file system pages, while isolating each jobs user +allocation in its own cpuset. To do this, construct a large +mem_exclusive cpuset to hold all the jobs, and construct child, +non-mem_exclusive cpusets for each individual job. Only a small +amount of typical kernel memory, such as requests from interrupt +handlers, is allowed to be taken outside even a mem_exclusive cpuset. + User level code may create and destroy cpusets by name in the cpuset virtual file system, manage the attributes and permissions of these cpusets and which CPUs and Memory Nodes are assigned to each cpuset, diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 3438233305a..1fe1c3ebad3 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -23,7 +23,7 @@ void cpuset_init_current_mems_allowed(void); void cpuset_update_current_mems_allowed(void); void cpuset_restrict_to_mems_allowed(unsigned long *nodes); int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl); -int cpuset_zone_allowed(struct zone *z); +extern int cpuset_zone_allowed(struct zone *z, unsigned int __nocast gfp_mask); extern struct file_operations proc_cpuset_operations; extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer); @@ -48,7 +48,8 @@ static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl) return 1; } -static inline int cpuset_zone_allowed(struct zone *z) +static inline int cpuset_zone_allowed(struct zone *z, + unsigned int __nocast gfp_mask) { return 1; } diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 8ab1b4e518b..214806deca9 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1611,17 +1611,81 @@ int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl) return 0; } +/* + * nearest_exclusive_ancestor() - Returns the nearest mem_exclusive + * ancestor to the specified cpuset. Call while holding cpuset_sem. + * If no ancestor is mem_exclusive (an unusual configuration), then + * returns the root cpuset. + */ +static const struct cpuset *nearest_exclusive_ancestor(const struct cpuset *cs) +{ + while (!is_mem_exclusive(cs) && cs->parent) + cs = cs->parent; + return cs; +} + /** - * cpuset_zone_allowed - is zone z allowed in current->mems_allowed - * @z: zone in question + * cpuset_zone_allowed - Can we allocate memory on zone z's memory node? + * @z: is this zone on an allowed node? + * @gfp_mask: memory allocation flags (we use __GFP_HARDWALL) * - * Is zone z allowed in current->mems_allowed, or is - * the CPU in interrupt context? (zone is always allowed in this case) - */ -int cpuset_zone_allowed(struct zone *z) + * If we're in interrupt, yes, we can always allocate. If zone + * z's node is in our tasks mems_allowed, yes. If it's not a + * __GFP_HARDWALL request and this zone's nodes is in the nearest + * mem_exclusive cpuset ancestor to this tasks cpuset, yes. + * Otherwise, no. + * + * GFP_USER allocations are marked with the __GFP_HARDWALL bit, + * and do not allow allocations outside the current tasks cpuset. + * GFP_KERNEL allocations are not so marked, so can escape to the + * nearest mem_exclusive ancestor cpuset. + * + * Scanning up parent cpusets requires cpuset_sem. The __alloc_pages() + * routine only calls here with __GFP_HARDWALL bit _not_ set if + * it's a GFP_KERNEL allocation, and all nodes in the current tasks + * mems_allowed came up empty on the first pass over the zonelist. + * So only GFP_KERNEL allocations, if all nodes in the cpuset are + * short of memory, might require taking the cpuset_sem semaphore. + * + * The first loop over the zonelist in mm/page_alloc.c:__alloc_pages() + * calls here with __GFP_HARDWALL always set in gfp_mask, enforcing + * hardwall cpusets - no allocation on a node outside the cpuset is + * allowed (unless in interrupt, of course). + * + * The second loop doesn't even call here for GFP_ATOMIC requests + * (if the __alloc_pages() local variable 'wait' is set). That check + * and the checks below have the combined affect in the second loop of + * the __alloc_pages() routine that: + * in_interrupt - any node ok (current task context irrelevant) + * GFP_ATOMIC - any node ok + * GFP_KERNEL - any node in enclosing mem_exclusive cpuset ok + * GFP_USER - only nodes in current tasks mems allowed ok. + **/ + +int cpuset_zone_allowed(struct zone *z, unsigned int __nocast gfp_mask) { - return in_interrupt() || - node_isset(z->zone_pgdat->node_id, current->mems_allowed); + int node; /* node that zone z is on */ + const struct cpuset *cs; /* current cpuset ancestors */ + int allowed = 1; /* is allocation in zone z allowed? */ + + if (in_interrupt()) + return 1; + node = z->zone_pgdat->node_id; + if (node_isset(node, current->mems_allowed)) + return 1; + if (gfp_mask & __GFP_HARDWALL) /* If hardwall request, stop here */ + return 0; + + /* Not hardwall and node outside mems_allowed: scan up cpusets */ + down(&cpuset_sem); + cs = current->cpuset; + if (!cs) + goto done; /* current task exiting */ + cs = nearest_exclusive_ancestor(cs); + allowed = node_isset(node, cs->mems_allowed); +done: + up(&cpuset_sem); + return allowed; } /* diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 14d7032c1d1..3974fd81d27 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -806,11 +806,14 @@ __alloc_pages(unsigned int __nocast gfp_mask, unsigned int order, classzone_idx = zone_idx(zones[0]); restart: - /* Go through the zonelist once, looking for a zone with enough free */ + /* + * Go through the zonelist once, looking for a zone with enough free. + * See also cpuset_zone_allowed() comment in kernel/cpuset.c. + */ for (i = 0; (z = zones[i]) != NULL; i++) { int do_reclaim = should_reclaim_zone(z, gfp_mask); - if (!cpuset_zone_allowed(z)) + if (!cpuset_zone_allowed(z, __GFP_HARDWALL)) continue; /* @@ -845,6 +848,7 @@ zone_reclaim_retry: * * This is the last chance, in general, before the goto nopage. * Ignore cpuset if GFP_ATOMIC (!wait) rather than fail alloc. + * See also cpuset_zone_allowed() comment in kernel/cpuset.c. */ for (i = 0; (z = zones[i]) != NULL; i++) { if (!zone_watermark_ok(z, order, z->pages_min, @@ -852,7 +856,7 @@ zone_reclaim_retry: gfp_mask & __GFP_HIGH)) continue; - if (wait && !cpuset_zone_allowed(z)) + if (wait && !cpuset_zone_allowed(z, gfp_mask)) continue; page = buffered_rmqueue(z, order, gfp_mask); @@ -867,7 +871,7 @@ zone_reclaim_retry: if (!(gfp_mask & __GFP_NOMEMALLOC)) { /* go through the zonelist yet again, ignoring mins */ for (i = 0; (z = zones[i]) != NULL; i++) { - if (!cpuset_zone_allowed(z)) + if (!cpuset_zone_allowed(z, gfp_mask)) continue; page = buffered_rmqueue(z, order, gfp_mask); if (page) @@ -903,7 +907,7 @@ rebalance: gfp_mask & __GFP_HIGH)) continue; - if (!cpuset_zone_allowed(z)) + if (!cpuset_zone_allowed(z, gfp_mask)) continue; page = buffered_rmqueue(z, order, gfp_mask); @@ -922,7 +926,7 @@ rebalance: classzone_idx, 0, 0)) continue; - if (!cpuset_zone_allowed(z)) + if (!cpuset_zone_allowed(z, __GFP_HARDWALL)) continue; page = buffered_rmqueue(z, order, gfp_mask); diff --git a/mm/vmscan.c b/mm/vmscan.c index 0095533cdde..a740778f688 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -894,7 +894,7 @@ shrink_caches(struct zone **zones, struct scan_control *sc) if (zone->present_pages == 0) continue; - if (!cpuset_zone_allowed(zone)) + if (!cpuset_zone_allowed(zone, __GFP_HARDWALL)) continue; zone->temp_priority = sc->priority; @@ -940,7 +940,7 @@ int try_to_free_pages(struct zone **zones, unsigned int gfp_mask) for (i = 0; zones[i] != NULL; i++) { struct zone *zone = zones[i]; - if (!cpuset_zone_allowed(zone)) + if (!cpuset_zone_allowed(zone, __GFP_HARDWALL)) continue; zone->temp_priority = DEF_PRIORITY; @@ -986,7 +986,7 @@ out: for (i = 0; zones[i] != 0; i++) { struct zone *zone = zones[i]; - if (!cpuset_zone_allowed(zone)) + if (!cpuset_zone_allowed(zone, __GFP_HARDWALL)) continue; zone->prev_priority = zone->temp_priority; @@ -1256,7 +1256,7 @@ void wakeup_kswapd(struct zone *zone, int order) return; if (pgdat->kswapd_max_order < order) pgdat->kswapd_max_order = order; - if (!cpuset_zone_allowed(zone)) + if (!cpuset_zone_allowed(zone, __GFP_HARDWALL)) return; if (!waitqueue_active(&zone->zone_pgdat->kswapd_wait)) return; -- cgit v1.2.3-70-g09d2 From 8c702e16207c70119d03df924de35f8c3629a5c4 Mon Sep 17 00:00:00 2001 From: Corey Minyard <minyard@acm.org> Date: Tue, 6 Sep 2005 15:18:46 -0700 Subject: [PATCH] ipmi poweroff: fix chassis control The IPMI power control function proc_write_chassctrl was badly written, it directly used userspace pointers, it assumed that strings were NULL terminated, and it used the evil sscanf function. This converts over to using the sysctl interface for this data and changes the semantics to be a little more logical. Signed-off-by: Corey Minyard <minyard@acm.org> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/IPMI.txt | 13 ++-- drivers/char/ipmi/ipmi_poweroff.c | 132 +++++++++++++++++--------------------- include/linux/sysctl.h | 6 ++ 3 files changed, 71 insertions(+), 80 deletions(-) (limited to 'Documentation') diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt index 84d3d4d10c1..bf1cf98d2a2 100644 --- a/Documentation/IPMI.txt +++ b/Documentation/IPMI.txt @@ -605,12 +605,13 @@ is in the ipmi_poweroff module. When the system requests a powerdown, it will send the proper IPMI commands to do this. This is supported on several platforms. -There is a module parameter named "poweroff_control" that may either be zero -(do a power down) or 2 (do a power cycle, power the system off, then power -it on in a few seconds). Setting ipmi_poweroff.poweroff_control=x will do -the same thing on the kernel command line. The parameter is also available -via the proc filesystem in /proc/ipmi/poweroff_control. Note that if the -system does not support power cycling, it will always to the power off. +There is a module parameter named "poweroff_powercycle" that may +either be zero (do a power down) or non-zero (do a power cycle, power +the system off, then power it on in a few seconds). Setting +ipmi_poweroff.poweroff_control=x will do the same thing on the kernel +command line. The parameter is also available via the proc filesystem +in /proc/sys/dev/ipmi/poweroff_powercycle. Note that if the system +does not support power cycling, it will always do the power off. Note that if you have ACPI enabled, the system will prefer using ACPI to power off. diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c index 42ea9843b39..e82a96ba396 100644 --- a/drivers/char/ipmi/ipmi_poweroff.c +++ b/drivers/char/ipmi/ipmi_poweroff.c @@ -52,11 +52,11 @@ extern void (*pm_power_off)(void); #define IPMI_CHASSIS_POWER_CYCLE 0x02 /* power cycle */ /* the IPMI data command */ -static int poweroff_control = IPMI_CHASSIS_POWER_DOWN; +static int poweroff_powercycle; /* parameter definition to allow user to flag power cycle */ -module_param(poweroff_control, int, IPMI_CHASSIS_POWER_DOWN); -MODULE_PARM_DESC(poweroff_control, " Set to 2 to enable power cycle instead of power down. Power cycle is contingent on hardware support, otherwise it defaults back to power down."); +module_param(poweroff_powercycle, int, 0); +MODULE_PARM_DESC(poweroff_powercycles, " Set to non-zero to enable power cycle instead of power down. Power cycle is contingent on hardware support, otherwise it defaults back to power down."); /* Stuff from the get device id command. */ static unsigned int mfg_id; @@ -385,37 +385,34 @@ static void ipmi_poweroff_chassis (ipmi_user_t user) powercyclefailed: printk(KERN_INFO PFX "Powering %s via IPMI chassis control command\n", - ((poweroff_control != IPMI_CHASSIS_POWER_CYCLE) ? "down" : "cycle")); + (poweroff_powercycle ? "cycle" : "down")); /* * Power down */ send_msg.netfn = IPMI_NETFN_CHASSIS_REQUEST; send_msg.cmd = IPMI_CHASSIS_CONTROL_CMD; - data[0] = poweroff_control; + if (poweroff_powercycle) + data[0] = IPMI_CHASSIS_POWER_CYCLE; + else + data[0] = IPMI_CHASSIS_POWER_DOWN; send_msg.data = data; send_msg.data_len = sizeof(data); rv = ipmi_request_in_rc_mode(user, (struct ipmi_addr *) &smi_addr, &send_msg); if (rv) { - switch (poweroff_control) { - case IPMI_CHASSIS_POWER_CYCLE: - /* power cycle failed, default to power down */ - printk(KERN_ERR PFX "Unable to send chassis power " \ - "cycle message, IPMI error 0x%x\n", rv); - poweroff_control = IPMI_CHASSIS_POWER_DOWN; - goto powercyclefailed; - - case IPMI_CHASSIS_POWER_DOWN: - default: - printk(KERN_ERR PFX "Unable to send chassis power " \ - "down message, IPMI error 0x%x\n", rv); - break; + if (poweroff_powercycle) { + /* power cycle failed, default to power down */ + printk(KERN_ERR PFX "Unable to send chassis power " \ + "cycle message, IPMI error 0x%x\n", rv); + poweroff_powercycle = 0; + goto powercyclefailed; } - } - return; + printk(KERN_ERR PFX "Unable to send chassis power " \ + "down message, IPMI error 0x%x\n", rv); + } } @@ -561,39 +558,35 @@ static struct ipmi_smi_watcher smi_watcher = #ifdef CONFIG_PROC_FS -/* displays properties to proc */ -static int proc_read_chassctrl(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - return sprintf(page, "%d\t[ 0=powerdown 2=powercycle ]\n", - poweroff_control); -} +#include <linux/sysctl.h> + +static ctl_table ipmi_table[] = { + { .ctl_name = DEV_IPMI_POWEROFF_POWERCYCLE, + .procname = "poweroff_powercycle", + .data = &poweroff_powercycle, + .maxlen = sizeof(poweroff_powercycle), + .mode = 0644, + .proc_handler = &proc_dointvec }, + { } +}; -/* process property writes from proc */ -static int proc_write_chassctrl(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - int rv = count; - unsigned int newval = 0; - - sscanf(buffer, "%d", &newval); - switch (newval) { - case IPMI_CHASSIS_POWER_CYCLE: - printk(KERN_INFO PFX "power cycle is now enabled\n"); - poweroff_control = newval; - break; - - case IPMI_CHASSIS_POWER_DOWN: - poweroff_control = IPMI_CHASSIS_POWER_DOWN; - break; - - default: - rv = -EINVAL; - break; - } +static ctl_table ipmi_dir_table[] = { + { .ctl_name = DEV_IPMI, + .procname = "ipmi", + .mode = 0555, + .child = ipmi_table }, + { } +}; - return rv; -} +static ctl_table ipmi_root_table[] = { + { .ctl_name = CTL_DEV, + .procname = "dev", + .mode = 0555, + .child = ipmi_dir_table }, + { } +}; + +static struct ctl_table_header *ipmi_table_header; #endif /* CONFIG_PROC_FS */ /* @@ -601,41 +594,32 @@ static int proc_write_chassctrl(struct file *file, const char *buffer, */ static int ipmi_poweroff_init (void) { - int rv; - struct proc_dir_entry *file; + int rv; printk ("Copyright (C) 2004 MontaVista Software -" " IPMI Powerdown via sys_reboot.\n"); - switch (poweroff_control) { - case IPMI_CHASSIS_POWER_CYCLE: - printk(KERN_INFO PFX "Power cycle is enabled.\n"); - break; + if (poweroff_powercycle) + printk(KERN_INFO PFX "Power cycle is enabled.\n"); - case IPMI_CHASSIS_POWER_DOWN: - default: - poweroff_control = IPMI_CHASSIS_POWER_DOWN; - break; +#ifdef CONFIG_PROC_FS + ipmi_table_header = register_sysctl_table(ipmi_root_table, 1); + if (!ipmi_table_header) { + printk(KERN_ERR PFX "Unable to register powercycle sysctl\n"); + rv = -ENOMEM; + goto out_err; } +#endif +#ifdef CONFIG_PROC_FS rv = ipmi_smi_watcher_register(&smi_watcher); +#endif if (rv) { + unregister_sysctl_table(ipmi_table_header); printk(KERN_ERR PFX "Unable to register SMI watcher: %d\n", rv); goto out_err; } -#ifdef CONFIG_PROC_FS - file = create_proc_entry("poweroff_control", 0, proc_ipmi_root); - if (!file) { - printk(KERN_ERR PFX "Unable to create proc power control\n"); - } else { - file->nlink = 1; - file->read_proc = proc_read_chassctrl; - file->write_proc = proc_write_chassctrl; - file->owner = THIS_MODULE; - } -#endif - out_err: return rv; } @@ -646,7 +630,7 @@ static __exit void ipmi_poweroff_cleanup(void) int rv; #ifdef CONFIG_PROC_FS - remove_proc_entry("poweroff_control", proc_ipmi_root); + unregister_sysctl_table(ipmi_table_header); #endif ipmi_smi_watcher_unregister(&smi_watcher); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index e82be96d490..532a6c5c24e 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -711,6 +711,7 @@ enum { DEV_RAID=4, DEV_MAC_HID=5, DEV_SCSI=6, + DEV_IPMI=7, }; /* /proc/sys/dev/cdrom */ @@ -776,6 +777,11 @@ enum { DEV_SCSI_LOGGING_LEVEL=1, }; +/* /proc/sys/dev/ipmi */ +enum { + DEV_IPMI_POWEROFF_POWERCYCLE=1, +}; + /* /proc/sys/abi */ enum { -- cgit v1.2.3-70-g09d2 From 2684f5c74d5c2d3eb6ddbb599a8c89a06c5fa420 Mon Sep 17 00:00:00 2001 From: Michael Krufky <mkrufky@m1k.net> Date: Tue, 6 Sep 2005 15:19:38 -0700 Subject: [PATCH] DVB: Clarify description text for dvb-bt8xx in Kconfig Patrick Keene wrote to the linux-dvb list, asking where in menuconfig he can enable dvb-bt8xx for his AVerMedia DVB card. I pointed the following out to him: config DVB_BT8XX tristate "Nebula/Pinnacle PCTV/Twinhan PCI cards" It has been agreed upon that this description is extremely misleading. This patch changes the one-liner description text of dvb-bt8xx to something more meaningful, and adds AVerMedia to the detailed description. Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/dvb/bt8xx.txt | 2 +- drivers/media/dvb/bt8xx/Kconfig | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt index e6b8d05bc08..4b8c326c6aa 100644 --- a/Documentation/dvb/bt8xx.txt +++ b/Documentation/dvb/bt8xx.txt @@ -16,7 +16,7 @@ Enable the following options: "Device drivers" => "Multimedia devices" => "Video For Linux" => "BT848 Video For Linux" "Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" - => "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards" + => "DVB for Linux" "DVB Core Support" "BT8xx based PCI cards" 3) Loading Modules, described by two approaches =============================================== diff --git a/drivers/media/dvb/bt8xx/Kconfig b/drivers/media/dvb/bt8xx/Kconfig index b12545f093f..1e85d16491b 100644 --- a/drivers/media/dvb/bt8xx/Kconfig +++ b/drivers/media/dvb/bt8xx/Kconfig @@ -1,5 +1,5 @@ config DVB_BT8XX - tristate "Nebula/Pinnacle PCTV/Twinhan PCI cards" + tristate "BT8xx based PCI cards" depends on DVB_CORE && PCI && VIDEO_BT848 select DVB_MT352 select DVB_SP887X @@ -8,8 +8,8 @@ config DVB_BT8XX select DVB_OR51211 help Support for PCI cards based on the Bt8xx PCI bridge. Examples are - the Nebula cards, the Pinnacle PCTV cards, the Twinhan DST cards and - pcHDTV HD2000 cards. + the Nebula cards, the Pinnacle PCTV cards, the Twinhan DST cards, + the pcHDTV HD2000 cards, and certain AVerMedia cards. Since these cards have no MPEG decoder onboard, they transmit only compressed MPEG data over the PCI bus, so you need -- cgit v1.2.3-70-g09d2