diff options
Diffstat (limited to 'sound/oss/cs46xx.c')
| -rw-r--r-- | sound/oss/cs46xx.c | 5794 |
1 files changed, 5794 insertions, 0 deletions
diff --git a/sound/oss/cs46xx.c b/sound/oss/cs46xx.c new file mode 100644 index 00000000000..8ce6b48f188 --- /dev/null +++ b/sound/oss/cs46xx.c @@ -0,0 +1,5794 @@ +/* + * Crystal SoundFusion CS46xx driver + * + * Copyright 1998-2001 Cirrus Logic Corporation <pcaudio@crystal.cirrus.com> + * <twoller@crystal.cirrus.com> + * Copyright 1999-2000 Jaroslav Kysela <perex@suse.cz> + * Copyright 2000 Alan Cox <alan@redhat.com> + * + * The core of this code is taken from the ALSA project driver by + * Jaroslav. Please send Jaroslav the credit for the driver and + * report bugs in this port to <alan@redhat.com> + * + * 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * Current maintainers: + * Cirrus Logic Corporation, Thomas Woller (tw) + * <twoller@crystal.cirrus.com> + * Nils Faerber (nf) + * <nils@kernelconcepts.de> + * Thanks to David Pollard for testing. + * + * Changes: + * 20000909-nf Changed cs_read, cs_write and drain_dac + * 20001025-tw Separate Playback/Capture structs and buffers. + * Added Scatter/Gather support for Playback. + * Added Capture. + * 20001027-nf Port to kernel 2.4.0-test9, some clean-ups + * Start of powermanagement support (CS46XX_PM). + * 20001128-tw Add module parm for default buffer order. + * added DMA_GFP flag to kmalloc dma buffer allocs. + * backfill silence to eliminate stuttering on + * underruns. + * 20001201-tw add resyncing of swptr on underruns. + * 20001205-tw-nf fixed GETOSPACE ioctl() after open() + * 20010113-tw patch from Hans Grobler general cleanup. + * 20010117-tw 2.4.0 pci cleanup, wrapper code for 2.2.16-2.4.0 + * 20010118-tw basic PM support for 2.2.16+ and 2.4.0/2.4.2. + * 20010228-dh patch from David Huggins - cs_update_ptr recursion. + * 20010409-tw add hercules game theatre XP amp code. + * 20010420-tw cleanup powerdown/up code. + * 20010521-tw eliminate pops, and fixes for powerdown. + * 20010525-tw added fixes for thinkpads with powerdown logic. + * 20010723-sh patch from Horms (Simon Horman) - + * SOUND_PCM_READ_BITS returns bits as set in driver + * rather than a logical or of the possible values. + * Various ioctls handle the case where the device + * is open for reading or writing but not both better. + * + * Status: + * Playback/Capture supported from 8k-48k. + * 16Bit Signed LE & 8Bit Unsigned, with Mono or Stereo supported. + * + * APM/PM - 2.2.x APM is enabled and functioning fine. APM can also + * be enabled for 2.4.x by modifying the CS46XX_ACPI_SUPPORT macro + * definition. + * + * Hercules Game Theatre XP - the EGPIO2 pin controls the external Amp, + * so, use the drain/polarity to enable. + * hercules_egpio_disable set to 1, will force a 0 to EGPIODR. + * + * VTB Santa Cruz - the GPIO7/GPIO8 on the Secondary Codec control + * the external amplifier for the "back" speakers, since we do not + * support the secondary codec then this external amp is also not + * turned on. + */ + +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/sound.h> +#include <linux/slab.h> +#include <linux/soundcard.h> +#include <linux/pci.h> +#include <linux/bitops.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/ac97_codec.h> + +#include <asm/io.h> +#include <asm/dma.h> +#include <asm/uaccess.h> + +#include "cs46xxpm-24.h" +#include "cs46xx_wrapper-24.h" +#include "cs461x.h" + +/* MIDI buffer sizes */ +#define CS_MIDIINBUF 500 +#define CS_MIDIOUTBUF 500 + +#define ADC_RUNNING 1 +#define DAC_RUNNING 2 + +#define CS_FMT_16BIT 1 /* These are fixed in fact */ +#define CS_FMT_STEREO 2 +#define CS_FMT_MASK 3 + +#define CS_TYPE_ADC 1 +#define CS_TYPE_DAC 2 + +#define CS_TRUE 1 +#define CS_FALSE 0 + +#define CS_INC_USE_COUNT(m) (atomic_inc(m)) +#define CS_DEC_USE_COUNT(m) (atomic_dec(m)) +#define CS_DEC_AND_TEST(m) (atomic_dec_and_test(m)) +#define CS_IN_USE(m) (atomic_read(m) != 0) + +#define CS_DBGBREAKPOINT {__asm__("INT $3");} +/* + * CS461x definitions + */ + +#define CS461X_BA0_SIZE 0x2000 +#define CS461X_BA1_DATA0_SIZE 0x3000 +#define CS461X_BA1_DATA1_SIZE 0x3800 +#define CS461X_BA1_PRG_SIZE 0x7000 +#define CS461X_BA1_REG_SIZE 0x0100 + +#define GOF_PER_SEC 200 + +#define CSDEBUG_INTERFACE 1 +#define CSDEBUG 1 +/* + * Turn on/off debugging compilation by using 1/0 respectively for CSDEBUG + * + * + * CSDEBUG is usual mode is set to 1, then use the + * cs_debuglevel and cs_debugmask to turn on or off debugging. + * Debug level of 1 has been defined to be kernel errors and info + * that should be printed on any released driver. + */ +#if CSDEBUG +#define CS_DBGOUT(mask,level,x) if((cs_debuglevel >= (level)) && ((mask) & cs_debugmask)) {x;} +#else +#define CS_DBGOUT(mask,level,x) +#endif +/* + * cs_debugmask areas + */ +#define CS_INIT 0x00000001 /* initialization and probe functions */ +#define CS_ERROR 0x00000002 /* tmp debugging bit placeholder */ +#define CS_INTERRUPT 0x00000004 /* interrupt handler (separate from all other) */ +#define CS_FUNCTION 0x00000008 /* enter/leave functions */ +#define CS_WAVE_WRITE 0x00000010 /* write information for wave */ +#define CS_WAVE_READ 0x00000020 /* read information for wave */ +#define CS_MIDI_WRITE 0x00000040 /* write information for midi */ +#define CS_MIDI_READ 0x00000080 /* read information for midi */ +#define CS_MPU401_WRITE 0x00000100 /* write information for mpu401 */ +#define CS_MPU401_READ 0x00000200 /* read information for mpu401 */ +#define CS_OPEN 0x00000400 /* all open functions in the driver */ +#define CS_RELEASE 0x00000800 /* all release functions in the driver */ +#define CS_PARMS 0x00001000 /* functional and operational parameters */ +#define CS_IOCTL 0x00002000 /* ioctl (non-mixer) */ +#define CS_PM 0x00004000 /* PM */ +#define CS_TMP 0x10000000 /* tmp debug mask bit */ + +#define CS_IOCTL_CMD_SUSPEND 0x1 // suspend +#define CS_IOCTL_CMD_RESUME 0x2 // resume + +#if CSDEBUG +static unsigned long cs_debuglevel=1; /* levels range from 1-9 */ +module_param(cs_debuglevel, ulong, 0644); +static unsigned long cs_debugmask=CS_INIT | CS_ERROR; /* use CS_DBGOUT with various mask values */ +module_param(cs_debugmask, ulong, 0644); +#endif +static unsigned long hercules_egpio_disable; /* if non-zero set all EGPIO to 0 */ +module_param(hercules_egpio_disable, ulong, 0); +static unsigned long initdelay=700; /* PM delay in millisecs */ +module_param(initdelay, ulong, 0); +static unsigned long powerdown=-1; /* turn on/off powerdown processing in driver */ +module_param(powerdown, ulong, 0); +#define DMABUF_DEFAULTORDER 3 +static unsigned long defaultorder=DMABUF_DEFAULTORDER; +module_param(defaultorder, ulong, 0); + +static int external_amp; +module_param(external_amp, bool, 0); +static int thinkpad; +module_param(thinkpad, bool, 0); + +/* +* set the powerdown module parm to 0 to disable all +* powerdown. also set thinkpad to 1 to disable powerdown, +* but also to enable the clkrun functionality. +*/ +static unsigned cs_powerdown=1; +static unsigned cs_laptop_wait=1; + +/* An instance of the 4610 channel */ +struct cs_channel +{ + int used; + int num; + void *state; +}; + +#define CS46XX_MAJOR_VERSION "1" +#define CS46XX_MINOR_VERSION "28" + +#ifdef __ia64__ +#define CS46XX_ARCH "64" //architecture key +#else +#define CS46XX_ARCH "32" //architecture key +#endif + +static struct list_head cs46xx_devs = { &cs46xx_devs, &cs46xx_devs }; + +/* magic numbers to protect our data structures */ +#define CS_CARD_MAGIC 0x43525553 /* "CRUS" */ +#define CS_STATE_MAGIC 0x4c4f4749 /* "LOGI" */ +#define NR_HW_CH 3 + +/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */ +#define NR_AC97 2 + +static const unsigned sample_size[] = { 1, 2, 2, 4 }; +static const unsigned sample_shift[] = { 0, 1, 1, 2 }; + +/* "software" or virtual channel, an instance of opened /dev/dsp */ +struct cs_state { + unsigned int magic; + struct cs_card *card; /* Card info */ + + /* single open lock mechanism, only used for recording */ + struct semaphore open_sem; + wait_queue_head_t open_wait; + + /* file mode */ + mode_t open_mode; + + /* virtual channel number */ + int virt; + + struct dmabuf { + /* wave sample stuff */ + unsigned int rate; + unsigned char fmt, enable; + + /* hardware channel */ + struct cs_channel *channel; + int pringbuf; /* Software ring slot */ + void *pbuf; /* 4K hardware DMA buffer */ + + /* OSS buffer management stuff */ + void *rawbuf; + dma_addr_t dma_handle; + unsigned buforder; + unsigned numfrag; + unsigned fragshift; + unsigned divisor; + unsigned type; + void *tmpbuff; /* tmp buffer for sample conversions */ + dma_addr_t dmaaddr; + dma_addr_t dmaaddr_tmpbuff; + unsigned buforder_tmpbuff; /* Log base 2 of size in bytes.. */ + + /* our buffer acts like a circular ring */ + unsigned hwptr; /* where dma last started, updated by update_ptr */ + unsigned swptr; /* where driver last clear/filled, updated by read/write */ + int count; /* bytes to be comsumed or been generated by dma machine */ + unsigned total_bytes; /* total bytes dmaed by hardware */ + unsigned blocks; /* total blocks */ + + unsigned error; /* number of over/underruns */ + unsigned underrun; /* underrun pending before next write has occurred */ + wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ + + /* redundant, but makes calculations easier */ + unsigned fragsize; + unsigned dmasize; + unsigned fragsamples; + + /* OSS stuff */ + unsigned mapped:1; + unsigned ready:1; + unsigned endcleared:1; + unsigned SGok:1; + unsigned update_flag; + unsigned ossfragshift; + int ossmaxfrags; + unsigned subdivision; + } dmabuf; + /* Guard against mmap/write/read races */ + struct semaphore sem; +}; + +struct cs_card { + struct cs_channel channel[2]; + unsigned int magic; + + /* We keep cs461x cards in a linked list */ + struct cs_card *next; + + /* The cs461x has a certain amount of cross channel interaction + so we use a single per card lock */ + spinlock_t lock; + + /* Keep AC97 sane */ + spinlock_t ac97_lock; + + /* mixer use count */ + atomic_t mixer_use_cnt; + + /* PCI device stuff */ + struct pci_dev * pci_dev; + struct list_head list; + + unsigned int pctl, cctl; /* Hardware DMA flag sets */ + + /* soundcore stuff */ + int dev_audio; + int dev_midi; + + /* structures for abstraction of hardware facilities, codecs, banks and channels*/ + struct ac97_codec *ac97_codec[NR_AC97]; + struct cs_state *states[2]; + + u16 ac97_features; + + int amplifier; /* Amplifier control */ + void (*amplifier_ctrl)(struct cs_card *, int); + void (*amp_init)(struct cs_card *); + + int active; /* Active clocking */ + void (*active_ctrl)(struct cs_card *, int); + + /* hardware resources */ + unsigned long ba0_addr; + unsigned long ba1_addr; + u32 irq; + + /* mappings */ + void __iomem *ba0; + union + { + struct + { + u8 __iomem *data0; + u8 __iomem *data1; + u8 __iomem *pmem; + u8 __iomem *reg; + } name; + u8 __iomem *idx[4]; + } ba1; + + /* Function support */ + struct cs_channel *(*alloc_pcm_channel)(struct cs_card *); + struct cs_channel *(*alloc_rec_pcm_channel)(struct cs_card *); + void (*free_pcm_channel)(struct cs_card *, int chan); + + /* /dev/midi stuff */ + struct { + unsigned ird, iwr, icnt; + unsigned ord, owr, ocnt; + wait_queue_head_t open_wait; + wait_queue_head_t iwait; + wait_queue_head_t owait; + spinlock_t lock; + unsigned char ibuf[CS_MIDIINBUF]; + unsigned char obuf[CS_MIDIOUTBUF]; + mode_t open_mode; + struct semaphore open_sem; + } midi; + struct cs46xx_pm pm; +}; + +static int cs_open_mixdev(struct inode *inode, struct file *file); +static int cs_release_mixdev(struct inode *inode, struct file *file); +static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, + unsigned long arg); +static int cs_hardware_init(struct cs_card *card); +static int cs46xx_powerup(struct cs_card *card, unsigned int type); +static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag); +static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type); +static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state); +static int cs46xx_resume_tbl(struct pci_dev *pcidev); + +#ifndef CS46XX_ACPI_SUPPORT +static int cs46xx_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data); +#endif + +#if CSDEBUG + +/* DEBUG ROUTINES */ + +#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int) +#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int) +#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int) +#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int) +#define SOUND_MIXER_CS_APM _SIOWR('M',124, int) + +static void printioctl(unsigned int x) +{ + unsigned int i; + unsigned char vidx; + /* these values are incorrect for the ac97 driver, fix. + * Index of mixtable1[] member is Device ID + * and must be <= SOUND_MIXER_NRDEVICES. + * Value of array member is index into s->mix.vol[] + */ + static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { + [SOUND_MIXER_PCM] = 1, /* voice */ + [SOUND_MIXER_LINE1] = 2, /* AUX */ + [SOUND_MIXER_CD] = 3, /* CD */ + [SOUND_MIXER_LINE] = 4, /* Line */ + [SOUND_MIXER_SYNTH] = 5, /* FM */ + [SOUND_MIXER_MIC] = 6, /* Mic */ + [SOUND_MIXER_SPEAKER] = 7, /* Speaker */ + [SOUND_MIXER_RECLEV] = 8, /* Recording level */ + [SOUND_MIXER_VOLUME] = 9 /* Master Volume */ + }; + + switch(x) + { + case SOUND_MIXER_CS_GETDBGMASK: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGMASK: ") ); + break; + case SOUND_MIXER_CS_GETDBGLEVEL: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGLEVEL: ") ); + break; + case SOUND_MIXER_CS_SETDBGMASK: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGMASK: ") ); + break; + case SOUND_MIXER_CS_SETDBGLEVEL: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGLEVEL: ") ); + break; + case OSS_GETVERSION: + CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION: ") ); + break; + case SNDCTL_DSP_SYNC: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC: ") ); + break; + case SNDCTL_DSP_SETDUPLEX: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX: ") ); + break; + case SNDCTL_DSP_GETCAPS: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS: ") ); + break; + case SNDCTL_DSP_RESET: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET: ") ); + break; + case SNDCTL_DSP_SPEED: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED: ") ); + break; + case SNDCTL_DSP_STEREO: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO: ") ); + break; + case SNDCTL_DSP_CHANNELS: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS: ") ); + break; + case SNDCTL_DSP_GETFMTS: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS: ") ); + break; + case SNDCTL_DSP_SETFMT: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT: ") ); + break; + case SNDCTL_DSP_POST: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST: ") ); + break; + case SNDCTL_DSP_GETTRIGGER: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER: ") ); + break; + case SNDCTL_DSP_SETTRIGGER: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER: ") ); + break; + case SNDCTL_DSP_GETOSPACE: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE: ") ); + break; + case SNDCTL_DSP_GETISPACE: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE: ") ); + break; + case SNDCTL_DSP_NONBLOCK: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK: ") ); + break; + case SNDCTL_DSP_GETODELAY: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY: ") ); + break; + case SNDCTL_DSP_GETIPTR: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR: ") ); + break; + case SNDCTL_DSP_GETOPTR: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR: ") ); + break; + case SNDCTL_DSP_GETBLKSIZE: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE: ") ); + break; + case SNDCTL_DSP_SETFRAGMENT: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFRAGMENT: ") ); + break; + case SNDCTL_DSP_SUBDIVIDE: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE: ") ); + break; + case SOUND_PCM_READ_RATE: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE: ") ); + break; + case SOUND_PCM_READ_CHANNELS: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_CHANNELS: ") ); + break; + case SOUND_PCM_READ_BITS: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS: ") ); + break; + case SOUND_PCM_WRITE_FILTER: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_WRITE_FILTER: ") ); + break; + case SNDCTL_DSP_SETSYNCRO: + CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO: ") ); + break; + case SOUND_PCM_READ_FILTER: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER: ") ); + break; + + case SOUND_MIXER_PRIVATE1: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1: ") ); + break; + case SOUND_MIXER_PRIVATE2: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2: ") ); + break; + case SOUND_MIXER_PRIVATE3: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3: ") ); + break; + case SOUND_MIXER_PRIVATE4: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4: ") ); + break; + case SOUND_MIXER_PRIVATE5: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5: ") ); + break; + case SOUND_MIXER_INFO: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO: ") ); + break; + case SOUND_OLD_MIXER_INFO: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO: ") ); + break; + + default: + switch (_IOC_NR(x)) + { + case SOUND_MIXER_VOLUME: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_VOLUME: ") ); + break; + case SOUND_MIXER_SPEAKER: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SPEAKER: ") ); + break; + case SOUND_MIXER_RECLEV: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECLEV: ") ); + break; + case SOUND_MIXER_MIC: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_MIC: ") ); + break; + case SOUND_MIXER_SYNTH: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SYNTH: ") ); + break; + case SOUND_MIXER_RECSRC: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECSRC: ") ); + break; + case SOUND_MIXER_DEVMASK: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_DEVMASK: ") ); + break; + case SOUND_MIXER_RECMASK: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECMASK: ") ); + break; + case SOUND_MIXER_STEREODEVS: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_STEREODEVS: ") ); + break; + case SOUND_MIXER_CAPS: + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:") ); + break; + default: + i = _IOC_NR(x); + if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) + { + CS_DBGOUT(CS_IOCTL, 4, printk("UNKNOWN IOCTL: 0x%.8x NR=%d ",x,i) ); + } + else + { + CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d ", + x,i) ); + } + break; + } + } + CS_DBGOUT(CS_IOCTL, 4, printk("command = 0x%x IOC_NR=%d\n",x, _IOC_NR(x)) ); +} +#endif + +/* + * common I/O routines + */ + +static void cs461x_poke(struct cs_card *codec, unsigned long reg, unsigned int val) +{ + writel(val, codec->ba1.idx[(reg >> 16) & 3]+(reg&0xffff)); +} + +static unsigned int cs461x_peek(struct cs_card *codec, unsigned long reg) +{ + return readl(codec->ba1.idx[(reg >> 16) & 3]+(reg&0xffff)); +} + +static void cs461x_pokeBA0(struct cs_card *codec, unsigned long reg, unsigned int val) +{ + writel(val, codec->ba0+reg); +} + +static unsigned int cs461x_peekBA0(struct cs_card *codec, unsigned long reg) +{ + return readl(codec->ba0+reg); +} + + +static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg); +static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 data); + +static struct cs_channel *cs_alloc_pcm_channel(struct cs_card *card) +{ + if(card->channel[1].used==1) + return NULL; + card->channel[1].used=1; + card->channel[1].num=1; + return &card->channel[1]; +} + +static struct cs_channel *cs_alloc_rec_pcm_channel(struct cs_card *card) +{ + if(card->channel[0].used==1) + return NULL; + card->channel[0].used=1; + card->channel[0].num=0; + return &card->channel[0]; +} + +static void cs_free_pcm_channel(struct cs_card *card, int channel) +{ + card->channel[channel].state = NULL; + card->channel[channel].used=0; +} + +/* + * setup a divisor value to help with conversion from + * 16bit Stereo, down to 8bit stereo/mono or 16bit mono. + * assign a divisor of 1 if using 16bit Stereo as that is + * the only format that the static image will capture. + */ +static void cs_set_divisor(struct dmabuf *dmabuf) +{ + if(dmabuf->type == CS_TYPE_DAC) + dmabuf->divisor = 1; + else if( !(dmabuf->fmt & CS_FMT_STEREO) && + (dmabuf->fmt & CS_FMT_16BIT)) + dmabuf->divisor = 2; + else if( (dmabuf->fmt & CS_FMT_STEREO) && + !(dmabuf->fmt & CS_FMT_16BIT)) + dmabuf->divisor = 2; + else if( !(dmabuf->fmt & CS_FMT_STEREO) && + !(dmabuf->fmt & CS_FMT_16BIT)) + dmabuf->divisor = 4; + else + dmabuf->divisor = 1; + + CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8, printk( + "cs46xx: cs_set_divisor()- %s %d\n", + (dmabuf->type == CS_TYPE_ADC) ? "ADC" : "DAC", + dmabuf->divisor) ); +} + +/* +* mute some of the more prevalent registers to avoid popping. +*/ +static void cs_mute(struct cs_card *card, int state) +{ + struct ac97_codec *dev=card->ac97_codec[0]; + + CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()+ %s\n", + (state == CS_TRUE) ? "Muting" : "UnMuting") ); + + if(state == CS_TRUE) + { + /* + * fix pops when powering up on thinkpads + */ + card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev, + (u8)BA0_AC97_MASTER_VOLUME); + card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_HEADPHONE_VOLUME); + card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_MASTER_VOLUME_MONO); + card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_PCM_OUT_VOLUME); + + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000); + } + else + { + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, card->pm.u32AC97_master_volume); + cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, card->pm.u32AC97_headphone_volume); + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, card->pm.u32AC97_master_volume_mono); + cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, card->pm.u32AC97_pcm_out_volume); + } + CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()-\n")); +} + +/* set playback sample rate */ +static unsigned int cs_set_dac_rate(struct cs_state * state, unsigned int rate) +{ + struct dmabuf *dmabuf = &state->dmabuf; + unsigned int tmp1, tmp2; + unsigned int phiIncr; + unsigned int correctionPerGOF, correctionPerSec; + unsigned long flags; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()+ %d\n",rate) ); + + /* + * Compute the values used to drive the actual sample rate conversion. + * The following formulas are being computed, using inline assembly + * since we need to use 64 bit arithmetic to compute the values: + * + * phiIncr = floor((Fs,in * 2^26) / Fs,out) + * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) / + * GOF_PER_SEC) + * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M + * GOF_PER_SEC * correctionPerGOF + * + * i.e. + * + * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out) + * correctionPerGOF:correctionPerSec = + * dividend:remainder(ulOther / GOF_PER_SEC) + */ + tmp1 = rate << 16; + phiIncr = tmp1 / 48000; + tmp1 -= phiIncr * 48000; + tmp1 <<= 10; + phiIncr <<= 10; + tmp2 = tmp1 / 48000; + phiIncr += tmp2; + tmp1 -= tmp2 * 48000; + correctionPerGOF = tmp1 / GOF_PER_SEC; + tmp1 -= correctionPerGOF * GOF_PER_SEC; + correctionPerSec = tmp1; + + /* + * Fill in the SampleRateConverter control block. + */ + + spin_lock_irqsave(&state->card->lock, flags); + cs461x_poke(state->card, BA1_PSRC, + ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF)); + cs461x_poke(state->card, BA1_PPI, phiIncr); + spin_unlock_irqrestore(&state->card->lock, flags); + dmabuf->rate = rate; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()- %d\n",rate) ); + return rate; +} + +/* set recording sample rate */ +static unsigned int cs_set_adc_rate(struct cs_state * state, unsigned int rate) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned int phiIncr, coeffIncr, tmp1, tmp2; + unsigned int correctionPerGOF, correctionPerSec, initialDelay; + unsigned int frameGroupLength, cnt; + unsigned long flags; + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()+ %d\n",rate) ); + + /* + * We can only decimate by up to a factor of 1/9th the hardware rate. + * Correct the value if an attempt is made to stray outside that limit. + */ + if ((rate * 9) < 48000) + rate = 48000 / 9; + + /* + * We can not capture at at rate greater than the Input Rate (48000). + * Return an error if an attempt is made to stray outside that limit. + */ + if (rate > 48000) + rate = 48000; + + /* + * Compute the values used to drive the actual sample rate conversion. + * The following formulas are being computed, using inline assembly + * since we need to use 64 bit arithmetic to compute the values: + * + * coeffIncr = -floor((Fs,out * 2^23) / Fs,in) + * phiIncr = floor((Fs,in * 2^26) / Fs,out) + * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) / + * GOF_PER_SEC) + * correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr - + * GOF_PER_SEC * correctionPerGOF + * initialDelay = ceil((24 * Fs,in) / Fs,out) + * + * i.e. + * + * coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in)) + * phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out) + * correctionPerGOF:correctionPerSec = + * dividend:remainder(ulOther / GOF_PER_SEC) + * initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out) + */ + + tmp1 = rate << 16; + coeffIncr = tmp1 / 48000; + tmp1 -= coeffIncr * 48000; + tmp1 <<= 7; + coeffIncr <<= 7; + coeffIncr += tmp1 / 48000; + coeffIncr ^= 0xFFFFFFFF; + coeffIncr++; + tmp1 = 48000 << 16; + phiIncr = tmp1 / rate; + tmp1 -= phiIncr * rate; + tmp1 <<= 10; + phiIncr <<= 10; + tmp2 = tmp1 / rate; + phiIncr += tmp2; + tmp1 -= tmp2 * rate; + correctionPerGOF = tmp1 / GOF_PER_SEC; + tmp1 -= correctionPerGOF * GOF_PER_SEC; + correctionPerSec = tmp1; + initialDelay = ((48000 * 24) + rate - 1) / rate; + + /* + * Fill in the VariDecimate control block. + */ + spin_lock_irqsave(&card->lock, flags); + cs461x_poke(card, BA1_CSRC, + ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF)); + cs461x_poke(card, BA1_CCI, coeffIncr); + cs461x_poke(card, BA1_CD, + (((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80); + cs461x_poke(card, BA1_CPI, phiIncr); + spin_unlock_irqrestore(&card->lock, flags); + + /* + * Figure out the frame group length for the write back task. Basically, + * this is just the factors of 24000 (2^6*3*5^3) that are not present in + * the output sample rate. + */ + frameGroupLength = 1; + for (cnt = 2; cnt <= 64; cnt *= 2) { + if (((rate / cnt) * cnt) != rate) + frameGroupLength *= 2; + } + if (((rate / 3) * 3) != rate) { + frameGroupLength *= 3; + } + for (cnt = 5; cnt <= 125; cnt *= 5) { + if (((rate / cnt) * cnt) != rate) + frameGroupLength *= 5; + } + + /* + * Fill in the WriteBack control block. + */ + spin_lock_irqsave(&card->lock, flags); + cs461x_poke(card, BA1_CFG1, frameGroupLength); + cs461x_poke(card, BA1_CFG2, (0x00800000 | frameGroupLength)); + cs461x_poke(card, BA1_CCST, 0x0000FFFF); + cs461x_poke(card, BA1_CSPB, ((65536 * rate) / 24000)); + cs461x_poke(card, (BA1_CSPB + 4), 0x0000FFFF); + spin_unlock_irqrestore(&card->lock, flags); + dmabuf->rate = rate; + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()- %d\n",rate) ); + return rate; +} + +/* prepare channel attributes for playback */ +static void cs_play_setup(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned int tmp, Count, playFormat; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()+\n") ); + cs461x_poke(card, BA1_PVOL, 0x80008000); + if(!dmabuf->SGok) + cs461x_poke(card, BA1_PBA, virt_to_bus(dmabuf->pbuf)); + + Count = 4; + playFormat=cs461x_peek(card, BA1_PFIE); + if ((dmabuf->fmt & CS_FMT_STEREO)) { + playFormat &= ~DMA_RQ_C2_AC_MONO_TO_STEREO; + Count *= 2; + } + else + playFormat |= DMA_RQ_C2_AC_MONO_TO_STEREO; + + if ((dmabuf->fmt & CS_FMT_16BIT)) { + playFormat &= ~(DMA_RQ_C2_AC_8_TO_16_BIT + | DMA_RQ_C2_AC_SIGNED_CONVERT); + Count *= 2; + } + else + playFormat |= (DMA_RQ_C2_AC_8_TO_16_BIT + | DMA_RQ_C2_AC_SIGNED_CONVERT); + + cs461x_poke(card, BA1_PFIE, playFormat); + + tmp = cs461x_peek(card, BA1_PDTC); + tmp &= 0xfffffe00; + cs461x_poke(card, BA1_PDTC, tmp | --Count); + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()-\n") ); + +} + +static struct InitStruct +{ + u32 off; + u32 val; +} InitArray[] = { {0x00000040, 0x3fc0000f}, + {0x0000004c, 0x04800000}, + + {0x000000b3, 0x00000780}, + {0x000000b7, 0x00000000}, + {0x000000bc, 0x07800000}, + + {0x000000cd, 0x00800000}, + }; + +/* + * "SetCaptureSPValues()" -- Initialize record task values before each + * capture startup. + */ +static void SetCaptureSPValues(struct cs_card *card) +{ + unsigned i, offset; + CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()+\n") ); + for(i=0; i<sizeof(InitArray)/sizeof(struct InitStruct); i++) + { + offset = InitArray[i].off*4; /* 8bit to 32bit offset value */ + cs461x_poke(card, offset, InitArray[i].val ); + } + CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()-\n") ); +} + +/* prepare channel attributes for recording */ +static void cs_rec_setup(struct cs_state *state) +{ + struct cs_card *card = state->card; + struct dmabuf *dmabuf = &state->dmabuf; + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()+\n") ); + + SetCaptureSPValues(card); + + /* + * set the attenuation to 0dB + */ + cs461x_poke(card, BA1_CVOL, 0x80008000); + + /* + * set the physical address of the capture buffer into the SP + */ + cs461x_poke(card, BA1_CBA, virt_to_bus(dmabuf->rawbuf)); + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()-\n") ); +} + + +/* get current playback/recording dma buffer pointer (byte offset from LBA), + called with spinlock held! */ + +static inline unsigned cs_get_dma_addr(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + u32 offset; + + if ( (!(dmabuf->enable & DAC_RUNNING)) && + (!(dmabuf->enable & ADC_RUNNING) ) ) + { + CS_DBGOUT(CS_ERROR, 2, printk( + "cs46xx: ERROR cs_get_dma_addr(): not enabled \n") ); + return 0; + } + + /* + * granularity is byte boundary, good part. + */ + if(dmabuf->enable & DAC_RUNNING) + { + offset = cs461x_peek(state->card, BA1_PBA); + } + else /* ADC_RUNNING must be set */ + { + offset = cs461x_peek(state->card, BA1_CBA); + } + CS_DBGOUT(CS_PARMS | CS_FUNCTION, 9, + printk("cs46xx: cs_get_dma_addr() %d\n",offset) ); + offset = (u32)bus_to_virt((unsigned long)offset) - (u32)dmabuf->rawbuf; + CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8, + printk("cs46xx: cs_get_dma_addr()- %d\n",offset) ); + return offset; +} + +static void resync_dma_ptrs(struct cs_state *state) +{ + struct dmabuf *dmabuf; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()+ \n") ); + if(state) + { + dmabuf = &state->dmabuf; + dmabuf->hwptr=dmabuf->swptr = 0; + dmabuf->pringbuf = 0; + } + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()- \n") ); +} + +/* Stop recording (lock held) */ +static inline void __stop_adc(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned int tmp; + + dmabuf->enable &= ~ADC_RUNNING; + + tmp = cs461x_peek(card, BA1_CCTL); + tmp &= 0xFFFF0000; + cs461x_poke(card, BA1_CCTL, tmp ); +} + +static void stop_adc(struct cs_state *state) +{ + unsigned long flags; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()+ \n") ); + spin_lock_irqsave(&state->card->lock, flags); + __stop_adc(state); + spin_unlock_irqrestore(&state->card->lock, flags); + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()- \n") ); +} + +static void start_adc(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned long flags; + unsigned int tmp; + + spin_lock_irqsave(&card->lock, flags); + if (!(dmabuf->enable & ADC_RUNNING) && + ((dmabuf->mapped || dmabuf->count < (signed)dmabuf->dmasize) + && dmabuf->ready) && + ((card->pm.flags & CS46XX_PM_IDLE) || + (card->pm.flags & CS46XX_PM_RESUMED)) ) + { + dmabuf->enable |= ADC_RUNNING; + cs_set_divisor(dmabuf); + tmp = cs461x_peek(card, BA1_CCTL); + tmp &= 0xFFFF0000; + tmp |= card->cctl; + CS_DBGOUT(CS_FUNCTION, 2, printk( + "cs46xx: start_adc() poke 0x%x \n",tmp) ); + cs461x_poke(card, BA1_CCTL, tmp); + } + spin_unlock_irqrestore(&card->lock, flags); +} + +/* stop playback (lock held) */ +static inline void __stop_dac(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned int tmp; + + dmabuf->enable &= ~DAC_RUNNING; + + tmp=cs461x_peek(card, BA1_PCTL); + tmp&=0xFFFF; + cs461x_poke(card, BA1_PCTL, tmp); +} + +static void stop_dac(struct cs_state *state) +{ + unsigned long flags; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()+ \n") ); + spin_lock_irqsave(&state->card->lock, flags); + __stop_dac(state); + spin_unlock_irqrestore(&state->card->lock, flags); + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()- \n") ); +} + +static void start_dac(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card = state->card; + unsigned long flags; + int tmp; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()+ \n") ); + spin_lock_irqsave(&card->lock, flags); + if (!(dmabuf->enable & DAC_RUNNING) && + ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) && + ((card->pm.flags & CS46XX_PM_IDLE) || + (card->pm.flags & CS46XX_PM_RESUMED)) ) + { + dmabuf->enable |= DAC_RUNNING; + tmp = cs461x_peek(card, BA1_PCTL); + tmp &= 0xFFFF; + tmp |= card->pctl; + CS_DBGOUT(CS_PARMS, 6, printk( + "cs46xx: start_dac() poke card=%p tmp=0x%.08x addr=%p \n", + card, (unsigned)tmp, + card->ba1.idx[(BA1_PCTL >> 16) & 3]+(BA1_PCTL&0xffff) ) ); + cs461x_poke(card, BA1_PCTL, tmp); + } + spin_unlock_irqrestore(&card->lock, flags); + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()- \n") ); +} + +#define DMABUF_MINORDER 1 + +/* + * allocate DMA buffer, playback and recording buffers are separate. + */ +static int alloc_dmabuf(struct cs_state *state) +{ + + struct cs_card *card=state->card; + struct dmabuf *dmabuf = &state->dmabuf; + void *rawbuf = NULL; + void *tmpbuff = NULL; + int order; + struct page *map, *mapend; + unsigned long df; + + dmabuf->ready = dmabuf->mapped = 0; + dmabuf->SGok = 0; +/* +* check for order within limits, but do not overwrite value. +*/ + if((defaultorder > 1) && (defaultorder < 12)) + df = defaultorder; + else + df = 2; + + for (order = df; order >= DMABUF_MINORDER; order--) + if ( (rawbuf = (void *) pci_alloc_consistent( + card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr))) + break; + if (!rawbuf) { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR + "cs46xx: alloc_dmabuf(): unable to allocate rawbuf\n")); + return -ENOMEM; + } + dmabuf->buforder = order; + dmabuf->rawbuf = rawbuf; + // Now mark the pages as reserved; otherwise the + // remap_pfn_range() in cs46xx_mmap doesn't work. + // 1. get index to last page in mem_map array for rawbuf. + mapend = virt_to_page(dmabuf->rawbuf + + (PAGE_SIZE << dmabuf->buforder) - 1); + + // 2. mark each physical page in range as 'reserved'. + for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++) + cs4x_mem_map_reserve(map); + + CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: alloc_dmabuf(): allocated %ld (order = %d) bytes at %p\n", + PAGE_SIZE << order, order, rawbuf) ); + +/* +* only allocate the conversion buffer for the ADC +*/ + if(dmabuf->type == CS_TYPE_DAC) + { + dmabuf->tmpbuff = NULL; + dmabuf->buforder_tmpbuff = 0; + return 0; + } +/* + * now the temp buffer for 16/8 conversions + */ + + tmpbuff = (void *) pci_alloc_consistent( + card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr_tmpbuff); + + if (!tmpbuff) + return -ENOMEM; + CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: allocated %ld (order = %d) bytes at %p\n", + PAGE_SIZE << order, order, tmpbuff) ); + + dmabuf->tmpbuff = tmpbuff; + dmabuf->buforder_tmpbuff = order; + + // Now mark the pages as reserved; otherwise the + // remap_pfn_range() in cs46xx_mmap doesn't work. + // 1. get index to last page in mem_map array for rawbuf. + mapend = virt_to_page(dmabuf->tmpbuff + + (PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1); + + // 2. mark each physical page in range as 'reserved'. + for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++) + cs4x_mem_map_reserve(map); + return 0; +} + +/* free DMA buffer */ +static void dealloc_dmabuf(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + struct page *map, *mapend; + + if (dmabuf->rawbuf) { + // Undo prog_dmabuf()'s marking the pages as reserved + mapend = virt_to_page(dmabuf->rawbuf + + (PAGE_SIZE << dmabuf->buforder) - 1); + for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++) + cs4x_mem_map_unreserve(map); + free_dmabuf(state->card, dmabuf); + } + + if (dmabuf->tmpbuff) { + // Undo prog_dmabuf()'s marking the pages as reserved + mapend = virt_to_page(dmabuf->tmpbuff + + (PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1); + for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++) + cs4x_mem_map_unreserve(map); + free_dmabuf2(state->card, dmabuf); + } + + dmabuf->rawbuf = NULL; + dmabuf->tmpbuff = NULL; + dmabuf->mapped = dmabuf->ready = 0; + dmabuf->SGok = 0; +} + +static int __prog_dmabuf(struct cs_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + unsigned long flags; + unsigned long allocated_pages, allocated_bytes; + unsigned long tmp1, tmp2, fmt=0; + unsigned long *ptmp = (unsigned long *) dmabuf->pbuf; + unsigned long SGarray[9], nSGpages=0; + int ret; + + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()+ \n")); +/* + * check for CAPTURE and use only non-sg for initial release + */ + if(dmabuf->type == CS_TYPE_ADC) + { + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() ADC\n")); + /* + * add in non-sg support for capture. + */ + spin_lock_irqsave(&state->card->lock, flags); + /* add code to reset the rawbuf memory. TRW */ + resync_dma_ptrs(state); + dmabuf->total_bytes = dmabuf->blocks = 0; + dmabuf->count = dmabuf->error = dmabuf->underrun = 0; + + dmabuf->SGok = 0; + + spin_unlock_irqrestore(&state->card->lock, flags); + + /* allocate DMA buffer if not allocated yet */ + if (!dmabuf->rawbuf || !dmabuf->tmpbuff) + if ((ret = alloc_dmabuf(state))) + return ret; + /* + * static image only supports 16Bit signed, stereo - hard code fmt + */ + fmt = CS_FMT_16BIT | CS_FMT_STEREO; + + dmabuf->numfrag = 2; + dmabuf->fragsize = 2048; + dmabuf->fragsamples = 2048 >> sample_shift[fmt]; + dmabuf->dmasize = 4096; + dmabuf->fragshift = 11; + + memset(dmabuf->rawbuf, (fmt & CS_FMT_16BIT) ? 0 : 0x80, + dmabuf->dmasize); + memset(dmabuf->tmpbuff, (fmt & CS_FMT_16BIT) ? 0 : 0x80, + PAGE_SIZE<<dmabuf->buforder_tmpbuff); + + /* + * Now set up the ring + */ + + spin_lock_irqsave(&state->card->lock, flags); + cs_rec_setup(state); + spin_unlock_irqrestore(&state->card->lock, flags); + + /* set the ready flag for the dma buffer */ + dmabuf->ready = 1; + + CS_DBGOUT(CS_PARMS, 4, printk( + "cs46xx: prog_dmabuf(): CAPTURE rate=%d fmt=0x%x numfrag=%d " + "fragsize=%d dmasize=%d\n", + dmabuf->rate, dmabuf->fmt, dmabuf->numfrag, + dmabuf->fragsize, dmabuf->dmasize) ); + + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- 0 \n")); + return 0; + } + else if (dmabuf->type == CS_TYPE_DAC) + { + /* + * Must be DAC + */ + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() DAC\n")); + spin_lock_irqsave(&state->card->lock, flags); + resync_dma_ptrs(state); + dmabuf->total_bytes = dmabuf->blocks = 0; + dmabuf->count = dmabuf->error = dmabuf->underrun = 0; + + dmabuf->SGok = 0; + + spin_unlock_irqrestore(&state->card->lock, flags); + + /* allocate DMA buffer if not allocated yet */ + if (!dmabuf->rawbuf) + if ((ret = alloc_dmabuf(state))) + return ret; + + allocated_pages = 1 << dmabuf->buforder; + allocated_bytes = allocated_pages*PAGE_SIZE; + + if(allocated_pages < 2) + { + CS_DBGOUT(CS_FUNCTION, 4, printk( + "cs46xx: prog_dmabuf() Error: allocated_pages too small (%d)\n", + (unsigned)allocated_pages)); + return -ENOMEM; + } + + /* Use all the pages allocated, fragsize 4k. */ + /* Use 'pbuf' for S/G page map table. */ + dmabuf->SGok = 1; /* Use S/G. */ + + nSGpages = allocated_bytes/4096; /* S/G pages always 4k. */ + + /* Set up S/G variables. */ + *ptmp = virt_to_bus(dmabuf->rawbuf); + *(ptmp+1) = 0x00000008; + for(tmp1= 1; tmp1 < nSGpages; tmp1++) { + *(ptmp+2*tmp1) = virt_to_bus( (dmabuf->rawbuf)+4096*tmp1); + if( tmp1 == nSGpages-1) + tmp2 = 0xbfff0000; + else + tmp2 = 0x80000000+8*(tmp1+1); + *(ptmp+2*tmp1+1) = tmp2; + } + SGarray[0] = 0x82c0200d; + SGarray[1] = 0xffff0000; + SGarray[2] = *ptmp; + SGarray[3] = 0x00010600; + SGarray[4] = *(ptmp+2); + SGarray[5] = 0x80000010; + SGarray[6] = *ptmp; + SGarray[7] = *(ptmp+2); + SGarray[8] = (virt_to_bus(dmabuf->pbuf) & 0xffff000) | 0x10; + + if (dmabuf->SGok) { + dmabuf->numfrag = nSGpages; + dmabuf->fragsize = 4096; + dmabuf->fragsamples = 4096 >> sample_shift[dmabuf->fmt]; + dmabuf->fragshift = 12; + dmabuf->dmasize = dmabuf->numfrag*4096; + } + else { + SGarray[0] = 0xf2c0000f; + SGarray[1] = 0x00000200; + SGarray[2] = 0; + SGarray[3] = 0x00010600; + SGarray[4]=SGarray[5]=SGarray[6]=SGarray[7]=SGarray[8] = 0; + dmabuf->numfrag = 2; + dmabuf->fragsize = 2048; + dmabuf->fragsamples = 2048 >> sample_shift[dmabuf->fmt]; + dmabuf->dmasize = 4096; + dmabuf->fragshift = 11; + } + for(tmp1 = 0; tmp1 < sizeof(SGarray)/4; tmp1++) + cs461x_poke( state->card, BA1_PDTC+tmp1*4, SGarray[tmp1]); + + memset(dmabuf->rawbuf, (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, + dmabuf->dmasize); + + /* + * Now set up the ring + */ + + spin_lock_irqsave(&state->card->lock, flags); + cs_play_setup(state); + spin_unlock_irqrestore(&state->card->lock, flags); + + /* set the ready flag for the dma buffer */ + dmabuf->ready = 1; + + CS_DBGOUT(CS_PARMS, 4, printk( + "cs46xx: prog_dmabuf(): PLAYBACK rate=%d fmt=0x%x numfrag=%d " + "fragsize=%d dmasize=%d\n", + dmabuf->rate, dmabuf->fmt, dmabuf->numfrag, + dmabuf->fragsize, dmabuf->dmasize) ); + + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- \n")); + return 0; + } + else + { + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- Invalid Type %d\n", + dmabuf->type)); + } + return 1; +} + +static int prog_dmabuf(struct cs_state *state) +{ + int ret; + + down(&state->sem); + ret = __prog_dmabuf(state); + up(&state->sem); + + return ret; +} + +static void cs_clear_tail(struct cs_state *state) +{ +} + +static int drain_dac(struct cs_state *state, int nonblock) +{ + DECLARE_WAITQUEUE(wait, current); + struct dmabuf *dmabuf = &state->dmabuf; + struct cs_card *card=state->card; + unsigned long flags; + unsigned long tmo; + int count; + + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()+ \n")); + if (dmabuf->mapped || !dmabuf->ready) + { + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0, not ready\n")); + return 0; + } + + add_wait_queue(&dmabuf->wait, &wait); + for (;;) { + /* It seems that we have to set the current state to TASK_INTERRUPTIBLE + every time to make the process really go to sleep */ + current->state = TASK_INTERRUPTIBLE; + + spin_lock_irqsave(&state->card->lock, flags); + count = dmabuf->count; + spin_unlock_irqrestore(&state->card->lock, flags); + + if (count <= 0) + break; + + if (signal_pending(current)) + break; + + if (nonblock) { + remove_wait_queue(&dmabuf->wait, &wait); + current->state = TASK_RUNNING; + return -EBUSY; + } + + tmo = (dmabuf->dmasize * HZ) / dmabuf->rate; + tmo >>= sample_shift[dmabuf->fmt]; + tmo += (2048*HZ)/dmabuf->rate; + + if (!schedule_timeout(tmo ? tmo : 1) && tmo){ + printk(KERN_ERR "cs46xx: drain_dac, dma timeout? %d\n", count); + break; + } + } + remove_wait_queue(&dmabuf->wait, &wait); + current->state = TASK_RUNNING; + if (signal_pending(current)) + { + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- -ERESTARTSYS\n")); + /* + * set to silence and let that clear the fifos. + */ + cs461x_clear_serial_FIFOs(card, CS_TYPE_DAC); + return -ERESTARTSYS; + } + + CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0\n")); + return 0; +} + + +/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ +static void cs_update_ptr(struct cs_card *card, int wake) +{ + struct cs_state *state; + struct dmabuf *dmabuf; + unsigned hwptr; + int diff; + + /* error handling and process wake up for ADC */ + state = card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + if (dmabuf->enable & ADC_RUNNING) { + /* update hardware pointer */ + hwptr = cs_get_dma_addr(state); + + diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; + CS_DBGOUT(CS_PARMS, 9, printk( + "cs46xx: cs_update_ptr()+ ADC hwptr=%d diff=%d\n", + hwptr,diff) ); + dmabuf->hwptr = hwptr; + dmabuf->total_bytes += diff; + dmabuf->count += diff; + if (dmabuf->count > dmabuf->dmasize) + dmabuf->count = dmabuf->dmasize; + + if(dmabuf->mapped) + { + if (wake && dmabuf->count >= (signed)dmabuf->fragsize) + wake_up(&dmabuf->wait); + } else + { + if (wake && dmabuf->count > 0) + wake_up(&dmabuf->wait); + } + } + } + +/* + * Now the DAC + */ + state = card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + /* error handling and process wake up for DAC */ + if (dmabuf->enable & DAC_RUNNING) { + /* update hardware pointer */ + hwptr = cs_get_dma_addr(state); + + diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; + CS_DBGOUT(CS_PARMS, 9, printk( + "cs46xx: cs_update_ptr()+ DAC hwptr=%d diff=%d\n", + hwptr,diff) ); + dmabuf->hwptr = hwptr; + dmabuf->total_bytes += diff; + if (dmabuf->mapped) { + dmabuf->count += diff; + if (wake && dmabuf->count >= (signed)dmabuf->fragsize) + wake_up(&dmabuf->wait); + /* + * other drivers use fragsize, but don't see any sense + * in that, since dmasize is the buffer asked for + * via mmap. + */ + if( dmabuf->count > dmabuf->dmasize) + dmabuf->count &= dmabuf->dmasize-1; + } else { + dmabuf->count -= diff; + /* + * backfill with silence and clear out the last + * "diff" number of bytes. + */ + if(hwptr >= diff) + { + memset(dmabuf->rawbuf + hwptr - diff, + (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, diff); + } + else + { + memset(dmabuf->rawbuf, + (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, + (unsigned)hwptr); + memset((char *)dmabuf->rawbuf + + dmabuf->dmasize + hwptr - diff, + (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, + diff - hwptr); + } + + if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) { + CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO + "cs46xx: ERROR DAC count<0 or count > dmasize (%d)\n", + dmabuf->count)); + /* + * buffer underrun or buffer overrun, reset the + * count of bytes written back to 0. + */ + if(dmabuf->count < 0) + dmabuf->underrun=1; + dmabuf->count = 0; + dmabuf->error++; + } + if (wake && dmabuf->count < (signed)dmabuf->dmasize/2) + wake_up(&dmabuf->wait); + } + } + } +} + + +/* hold spinlock for the following! */ +static void cs_handle_midi(struct cs_card *card) +{ + unsigned char ch; + int wake; + unsigned temp1; + + wake = 0; + while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_RBE)) { + ch = cs461x_peekBA0(card, BA0_MIDRP); + if (card->midi.icnt < CS_MIDIINBUF) { + card->midi.ibuf[card->midi.iwr] = ch; + card->midi.iwr = (card->midi.iwr + 1) % CS_MIDIINBUF; + card->midi.icnt++; + } + wake = 1; + } + if (wake) + wake_up(&card->midi.iwait); + wake = 0; + while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_TBF) && card->midi.ocnt > 0) { + temp1 = ( card->midi.obuf[card->midi.ord] ) & 0x000000ff; + cs461x_pokeBA0(card, BA0_MIDWP,temp1); + card->midi.ord = (card->midi.ord + 1) % CS_MIDIOUTBUF; + card->midi.ocnt--; + if (card->midi.ocnt < CS_MIDIOUTBUF-16) + wake = 1; + } + if (wake) + wake_up(&card->midi.owait); +} + +static irqreturn_t cs_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct cs_card *card = (struct cs_card *)dev_id; + /* Single channel card */ + struct cs_state *recstate = card->channel[0].state; + struct cs_state *playstate = card->channel[1].state; + u32 status; + + CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()+ \n")); + + spin_lock(&card->lock); + + status = cs461x_peekBA0(card, BA0_HISR); + + if ((status & 0x7fffffff) == 0) + { + cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV); + spin_unlock(&card->lock); + return IRQ_HANDLED; /* Might be IRQ_NONE.. */ + } + + /* + * check for playback or capture interrupt only + */ + if( ((status & HISR_VC0) && playstate && playstate->dmabuf.ready) || + (((status & HISR_VC1) && recstate && recstate->dmabuf.ready)) ) + { + CS_DBGOUT(CS_INTERRUPT, 8, printk( + "cs46xx: cs_interrupt() interrupt bit(s) set (0x%x)\n",status)); + cs_update_ptr(card, CS_TRUE); + } + + if( status & HISR_MIDI ) + cs_handle_midi(card); + + /* clear 'em */ + cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV); + spin_unlock(&card->lock); + CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()- \n")); + return IRQ_HANDLED; +} + + +/**********************************************************************/ + +static ssize_t cs_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + ssize_t ret; + unsigned long flags; + unsigned ptr; + int cnt; + + if (!access_ok(VERIFY_WRITE, buffer, count)) + return -EFAULT; + ret = 0; + while (count > 0) { + spin_lock_irqsave(&card->lock, flags); + ptr = card->midi.ird; + cnt = CS_MIDIINBUF - ptr; + if (card->midi.icnt < cnt) + cnt = card->midi.icnt; + spin_unlock_irqrestore(&card->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (file->f_flags & O_NONBLOCK) + return ret ? ret : -EAGAIN; + interruptible_sleep_on(&card->midi.iwait); + if (signal_pending(current)) + return ret ? ret : -ERESTARTSYS; + continue; + } + if (copy_to_user(buffer, card->midi.ibuf + ptr, cnt)) + return ret ? ret : -EFAULT; + ptr = (ptr + cnt) % CS_MIDIINBUF; + spin_lock_irqsave(&card->lock, flags); + card->midi.ird = ptr; + card->midi.icnt -= cnt; + spin_unlock_irqrestore(&card->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + } + return ret; +} + + +static ssize_t cs_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + ssize_t ret; + unsigned long flags; + unsigned ptr; + int cnt; + + if (!access_ok(VERIFY_READ, buffer, count)) + return -EFAULT; + ret = 0; + while (count > 0) { + spin_lock_irqsave(&card->lock, flags); + ptr = card->midi.owr; + cnt = CS_MIDIOUTBUF - ptr; + if (card->midi.ocnt + cnt > CS_MIDIOUTBUF) + cnt = CS_MIDIOUTBUF - card->midi.ocnt; + if (cnt <= 0) + cs_handle_midi(card); + spin_unlock_irqrestore(&card->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (file->f_flags & O_NONBLOCK) + return ret ? ret : -EAGAIN; + interruptible_sleep_on(&card->midi.owait); + if (signal_pending(current)) + return ret ? ret : -ERESTARTSYS; + continue; + } + if (copy_from_user(card->midi.obuf + ptr, buffer, cnt)) + return ret ? ret : -EFAULT; + ptr = (ptr + cnt) % CS_MIDIOUTBUF; + spin_lock_irqsave(&card->lock, flags); + card->midi.owr = ptr; + card->midi.ocnt += cnt; + spin_unlock_irqrestore(&card->lock, flags); + count -= cnt; + buffer += cnt; + ret += cnt; + spin_lock_irqsave(&card->lock, flags); + cs_handle_midi(card); + spin_unlock_irqrestore(&card->lock, flags); + } + return ret; +} + + +static unsigned int cs_midi_poll(struct file *file, struct poll_table_struct *wait) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + unsigned long flags; + unsigned int mask = 0; + + if (file->f_flags & FMODE_WRITE) + poll_wait(file, &card->midi.owait, wait); + if (file->f_flags & FMODE_READ) + poll_wait(file, &card->midi.iwait, wait); + spin_lock_irqsave(&card->lock, flags); + if (file->f_flags & FMODE_READ) { + if (card->midi.icnt > 0) + mask |= POLLIN | POLLRDNORM; + } + if (file->f_flags & FMODE_WRITE) { + if (card->midi.ocnt < CS_MIDIOUTBUF) + mask |= POLLOUT | POLLWRNORM; + } + spin_unlock_irqrestore(&card->lock, flags); + return mask; +} + + +static int cs_midi_open(struct inode *inode, struct file *file) +{ + unsigned int minor = iminor(inode); + struct cs_card *card=NULL; + unsigned long flags; + struct list_head *entry; + + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + if (card->dev_midi == minor) + break; + } + + if (entry == &cs46xx_devs) + return -ENODEV; + if (!card) + { + CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO + "cs46xx: cs46xx_midi_open(): Error - unable to find card struct\n")); + return -ENODEV; + } + + file->private_data = card; + /* wait for device to become free */ + down(&card->midi.open_sem); + while (card->midi.open_mode & file->f_mode) { + if (file->f_flags & O_NONBLOCK) { + up(&card->midi.open_sem); + return -EBUSY; + } + up(&card->midi.open_sem); + interruptible_sleep_on(&card->midi.open_wait); + if (signal_pending(current)) + return -ERESTARTSYS; + down(&card->midi.open_sem); + } + spin_lock_irqsave(&card->midi.lock, flags); + if (!(card->midi.open_mode & (FMODE_READ | FMODE_WRITE))) { + card->midi.ird = card->midi.iwr = card->midi.icnt = 0; + card->midi.ord = card->midi.owr = card->midi.ocnt = 0; + card->midi.ird = card->midi.iwr = card->midi.icnt = 0; + cs461x_pokeBA0(card, BA0_MIDCR, 0x0000000f); /* Enable xmit, rcv. */ + cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM); /* Enable interrupts */ + } + if (file->f_mode & FMODE_READ) { + card->midi.ird = card->midi.iwr = card->midi.icnt = 0; + } + if (file->f_mode & FMODE_WRITE) { + card->midi.ord = card->midi.owr = card->midi.ocnt = 0; + } + spin_unlock_irqrestore(&card->midi.lock, flags); + card->midi.open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE)); + up(&card->midi.open_sem); + return 0; +} + + +static int cs_midi_release(struct inode *inode, struct file *file) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + unsigned count, tmo; + + if (file->f_mode & FMODE_WRITE) { + current->state = TASK_INTERRUPTIBLE; + add_wait_queue(&card->midi.owait, &wait); + for (;;) { + spin_lock_irqsave(&card->midi.lock, flags); + count = card->midi.ocnt; + spin_unlock_irqrestore(&card->midi.lock, flags); + if (count <= 0) + break; + if (signal_pending(current)) + break; + if (file->f_flags & O_NONBLOCK) + break; + tmo = (count * HZ) / 3100; + if (!schedule_timeout(tmo ? : 1) && tmo) + printk(KERN_DEBUG "cs46xx: midi timed out??\n"); + } + remove_wait_queue(&card->midi.owait, &wait); + current->state = TASK_RUNNING; + } + down(&card->midi.open_sem); + card->midi.open_mode &= (~(file->f_mode & (FMODE_READ | FMODE_WRITE))); + up(&card->midi.open_sem); + wake_up(&card->midi.open_wait); + return 0; +} + +/* + * Midi file operations struct. + */ +static /*const*/ struct file_operations cs_midi_fops = { + CS_OWNER CS_THIS_MODULE + .llseek = no_llseek, + .read = cs_midi_read, + .write = cs_midi_write, + .poll = cs_midi_poll, + .open = cs_midi_open, + .release = cs_midi_release, +}; + +/* + * + * CopySamples copies 16-bit stereo signed samples from the source to the + * destination, possibly converting down to unsigned 8-bit and/or mono. + * count specifies the number of output bytes to write. + * + * Arguments: + * + * dst - Pointer to a destination buffer. + * src - Pointer to a source buffer + * count - The number of bytes to copy into the destination buffer. + * fmt - CS_FMT_16BIT and/or CS_FMT_STEREO bits + * dmabuf - pointer to the dma buffer structure + * + * NOTES: only call this routine if the output desired is not 16 Signed Stereo + * + * + */ +static void CopySamples(char *dst, char *src, int count, unsigned fmt, + struct dmabuf *dmabuf) +{ + + s32 s32AudioSample; + s16 *psSrc=(s16 *)src; + s16 *psDst=(s16 *)dst; + u8 *pucDst=(u8 *)dst; + + CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: CopySamples()+ ") ); + CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO + " dst=%p src=%p count=%d fmt=0x%x\n", + dst,src,count,fmt) ); + + /* + * See if the data should be output as 8-bit unsigned stereo. + */ + if((fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT)) + { + /* + * Convert each 16-bit signed stereo sample to 8-bit unsigned + * stereo using rounding. + */ + psSrc = (s16 *)src; + count = count/2; + while(count--) + { + *(pucDst++) = (u8)(((s16)(*psSrc++) + (s16)0x8000) >> 8); + } + } + /* + * See if the data should be output at 8-bit unsigned mono. + */ + else if(!(fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT)) + { + /* + * Convert each 16-bit signed stereo sample to 8-bit unsigned + * mono using averaging and rounding. + */ + psSrc = (s16 *)src; + count = count/2; + while(count--) + { + s32AudioSample = ((*psSrc)+(*(psSrc + 1)))/2 + (s32)0x80; + if(s32AudioSample > 0x7fff) + s32AudioSample = 0x7fff; + *(pucDst++) = (u8)(((s16)s32AudioSample + (s16)0x8000) >> 8); + psSrc += 2; + } + } + /* + * See if the data should be output at 16-bit signed mono. + */ + else if(!(fmt & CS_FMT_STEREO) && (fmt & CS_FMT_16BIT)) + { + /* + * Convert each 16-bit signed stereo sample to 16-bit signed + * mono using averaging. + */ + psSrc = (s16 *)src; + count = count/2; + while(count--) + { + *(psDst++) = (s16)((*psSrc)+(*(psSrc + 1)))/2; + psSrc += 2; + } + } +} + +/* + * cs_copy_to_user() + * replacement for the standard copy_to_user, to allow for a conversion from + * 16 bit to 8 bit and from stereo to mono, if the record conversion is active. + * The current CS46xx/CS4280 static image only records in 16bit unsigned Stereo, + * so we convert from any of the other format combinations. + */ +static unsigned cs_copy_to_user( + struct cs_state *s, + void __user *dest, + void *hwsrc, + unsigned cnt, + unsigned *copied) +{ + struct dmabuf *dmabuf = &s->dmabuf; + void *src = hwsrc; /* default to the standard destination buffer addr */ + + CS_DBGOUT(CS_FUNCTION, 6, printk(KERN_INFO + "cs_copy_to_user()+ fmt=0x%x cnt=%d dest=%p\n", + dmabuf->fmt,(unsigned)cnt,dest) ); + + if(cnt > dmabuf->dmasize) + { + cnt = dmabuf->dmasize; + } + if(!cnt) + { + *copied = 0; + return 0; + } + if(dmabuf->divisor != 1) + { + if(!dmabuf->tmpbuff) + { + *copied = cnt/dmabuf->divisor; + return 0; + } + + CopySamples((char *)dmabuf->tmpbuff, (char *)hwsrc, cnt, + dmabuf->fmt, dmabuf); + src = dmabuf->tmpbuff; + cnt = cnt/dmabuf->divisor; + } + if (copy_to_user(dest, src, cnt)) + { + CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_ERR + "cs46xx: cs_copy_to_user()- fault dest=%p src=%p cnt=%d\n", + dest,src,cnt) ); + *copied = 0; + return -EFAULT; + } + *copied = cnt; + CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO + "cs46xx: cs_copy_to_user()- copied bytes is %d \n",cnt) ); + return 0; +} + +/* in this loop, dmabuf.count signifies the amount of data that is waiting to be copied to + the user's buffer. it is filled by the dma machine and drained by this loop. */ +static ssize_t cs_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) +{ + struct cs_card *card = (struct cs_card *) file->private_data; + struct cs_state *state; + DECLARE_WAITQUEUE(wait, current); + struct dmabuf *dmabuf; + ssize_t ret = 0; + unsigned long flags; + unsigned swptr; + int cnt; + unsigned copied=0; + + CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4, + printk("cs46xx: cs_read()+ %zd\n",count) ); + state = (struct cs_state *)card->states[0]; + if(!state) + return -ENODEV; + dmabuf = &state->dmabuf; + + if (dmabuf->mapped) + return -ENXIO; + if (!access_ok(VERIFY_WRITE, buffer, count)) + return -EFAULT; + + down(&state->sem); + if (!dmabuf->ready && (ret = __prog_dmabuf(state))) + goto out2; + + add_wait_queue(&state->dmabuf.wait, &wait); + while (count > 0) { + while(!(card->pm.flags & CS46XX_PM_IDLE)) + { + schedule(); + if (signal_pending(current)) { + if(!ret) ret = -ERESTARTSYS; + goto out; + } + } + spin_lock_irqsave(&state->card->lock, flags); + swptr = dmabuf->swptr; + cnt = dmabuf->dmasize - swptr; + if (dmabuf->count < cnt) + cnt = dmabuf->count; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&state->card->lock, flags); + + if (cnt > (count * dmabuf->divisor)) + cnt = count * dmabuf->divisor; + if (cnt <= 0) { + /* buffer is empty, start the dma machine and wait for data to be + recorded */ + start_adc(state); + if (file->f_flags & O_NONBLOCK) { + if (!ret) ret = -EAGAIN; + goto out; + } + up(&state->sem); + schedule(); + if (signal_pending(current)) { + if(!ret) ret = -ERESTARTSYS; + goto out; + } + down(&state->sem); + if (dmabuf->mapped) + { + if(!ret) + ret = -ENXIO; + goto out; + } + continue; + } + + CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO + "_read() copy_to cnt=%d count=%zd ", cnt,count) ); + CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO + " .dmasize=%d .count=%d buffer=%p ret=%zd\n", + dmabuf->dmasize,dmabuf->count,buffer,ret) ); + + if (cs_copy_to_user(state, buffer, + (char *)dmabuf->rawbuf + swptr, cnt, &copied)) + { + if (!ret) ret = -EFAULT; + goto out; + } + swptr = (swptr + cnt) % dmabuf->dmasize; + spin_lock_irqsave(&card->lock, flags); + dmabuf->swptr = swptr; + dmabuf->count -= cnt; + spin_unlock_irqrestore(&card->lock, flags); + count -= copied; + buffer += copied; + ret += copied; + start_adc(state); + } +out: + remove_wait_queue(&state->dmabuf.wait, &wait); +out2: + up(&state->sem); + set_current_state(TASK_RUNNING); + CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4, + printk("cs46xx: cs_read()- %zd\n",ret) ); + return ret; +} + +/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to + the soundcard. it is drained by the dma machine and filled by this loop. */ +static ssize_t cs_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) +{ + struct cs_card *card = (struct cs_card *) file->private_data; + struct cs_state *state; + DECLARE_WAITQUEUE(wait, current); + struct dmabuf *dmabuf; + ssize_t ret; + unsigned long flags; + unsigned swptr; + int cnt; + + CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 4, + printk("cs46xx: cs_write called, count = %zd\n", count) ); + state = (struct cs_state *)card->states[1]; + if(!state) + return -ENODEV; + if (!access_ok(VERIFY_READ, buffer, count)) + return -EFAULT; + dmabuf = &state->dmabuf; + + down(&state->sem); + if (dmabuf->mapped) + { + ret = -ENXIO; + goto out; + } + + if (!dmabuf->ready && (ret = __prog_dmabuf(state))) + goto out; + add_wait_queue(&state->dmabuf.wait, &wait); + ret = 0; +/* +* Start the loop to read from the user's buffer and write to the dma buffer. +* check for PM events and underrun/overrun in the loop. +*/ + while (count > 0) { + while(!(card->pm.flags & CS46XX_PM_IDLE)) + { + schedule(); + if (signal_pending(current)) { + if(!ret) ret = -ERESTARTSYS; + goto out; + } + } + spin_lock_irqsave(&state->card->lock, flags); + if (dmabuf->count < 0) { + /* buffer underrun, we are recovering from sleep_on_timeout, + resync hwptr and swptr */ + dmabuf->count = 0; + dmabuf->swptr = dmabuf->hwptr; + } + if (dmabuf->underrun) + { + dmabuf->underrun = 0; + dmabuf->hwptr = cs_get_dma_addr(state); + dmabuf->swptr = dmabuf->hwptr; + } + + swptr = dmabuf->swptr; + cnt = dmabuf->dmasize - swptr; + if (dmabuf->count + cnt > dmabuf->dmasize) + cnt = dmabuf->dmasize - dmabuf->count; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&state->card->lock, flags); + + if (cnt > count) + cnt = count; + if (cnt <= 0) { + /* buffer is full, start the dma machine and wait for data to be + played */ + start_dac(state); + if (file->f_flags & O_NONBLOCK) { + if (!ret) ret = -EAGAIN; + goto out; + } + up(&state->sem); + schedule(); + if (signal_pending(current)) { + if(!ret) ret = -ERESTARTSYS; + goto out; + } + down(&state->sem); + if (dmabuf->mapped) + { + if(!ret) + ret = -ENXIO; + goto out; + } + continue; + } + if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { + if (!ret) ret = -EFAULT; + goto out; + } + spin_lock_irqsave(&state->card->lock, flags); + swptr = (swptr + cnt) % dmabuf->dmasize; + dmabuf->swptr = swptr; + dmabuf->count += cnt; + if(dmabuf->count > dmabuf->dmasize) + { + CS_DBGOUT(CS_WAVE_WRITE | CS_ERROR, 2, printk( + "cs46xx: cs_write() d->count > dmasize - resetting\n")); + dmabuf->count = dmabuf->dmasize; + } + dmabuf->endcleared = 0; + spin_unlock_irqrestore(&state->card->lock, flags); + + count -= cnt; + buffer += cnt; + ret += cnt; + start_dac(state); + } +out: + up(&state->sem); + remove_wait_queue(&state->dmabuf.wait, &wait); + set_current_state(TASK_RUNNING); + + CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 2, + printk("cs46xx: cs_write()- ret=%zd\n", ret) ); + return ret; +} + +static unsigned int cs_poll(struct file *file, struct poll_table_struct *wait) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + struct dmabuf *dmabuf; + struct cs_state *state; + + unsigned long flags; + unsigned int mask = 0; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()+ \n")); + if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) + { + return -EINVAL; + } + if (file->f_mode & FMODE_WRITE) + { + state = card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + poll_wait(file, &dmabuf->wait, wait); + } + } + if (file->f_mode & FMODE_READ) + { + state = card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + poll_wait(file, &dmabuf->wait, wait); + } + } + + spin_lock_irqsave(&card->lock, flags); + cs_update_ptr(card, CS_FALSE); + if (file->f_mode & FMODE_READ) { + state = card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + if (dmabuf->count >= (signed)dmabuf->fragsize) + mask |= POLLIN | POLLRDNORM; + } + } + if (file->f_mode & FMODE_WRITE) { + state = card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + if (dmabuf->mapped) { + if (dmabuf->count >= (signed)dmabuf->fragsize) + mask |= POLLOUT | POLLWRNORM; + } else { + if ((signed)dmabuf->dmasize >= dmabuf->count + + (signed)dmabuf->fragsize) + mask |= POLLOUT | POLLWRNORM; + } + } + } + spin_unlock_irqrestore(&card->lock, flags); + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()- (0x%x) \n", + mask)); + return mask; +} + +/* + * We let users mmap the ring buffer. Its not the real DMA buffer but + * that side of the code is hidden in the IRQ handling. We do a software + * emulation of DMA from a 64K or so buffer into a 2K FIFO. + * (the hardware probably deserves a moan here but Crystal send me nice + * toys ;)). + */ + +static int cs_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + struct cs_state *state; + struct dmabuf *dmabuf; + int ret = 0; + unsigned long size; + + CS_DBGOUT(CS_FUNCTION | CS_PARMS, 2, printk("cs46xx: cs_mmap()+ file=%p %s %s\n", + file, vma->vm_flags & VM_WRITE ? "VM_WRITE" : "", + vma->vm_flags & VM_READ ? "VM_READ" : "") ); + + if (vma->vm_flags & VM_WRITE) { + state = card->states[1]; + if(state) + { + CS_DBGOUT(CS_OPEN, 2, printk( + "cs46xx: cs_mmap() VM_WRITE - state TRUE prog_dmabuf DAC\n") ); + if ((ret = prog_dmabuf(state)) != 0) + return ret; + } + } else if (vma->vm_flags & VM_READ) { + state = card->states[0]; + if(state) + { + CS_DBGOUT(CS_OPEN, 2, printk( + "cs46xx: cs_mmap() VM_READ - state TRUE prog_dmabuf ADC\n") ); + if ((ret = prog_dmabuf(state)) != 0) + return ret; + } + } else { + CS_DBGOUT(CS_ERROR, 2, printk( + "cs46xx: cs_mmap() return -EINVAL\n") ); + return -EINVAL; + } + +/* + * For now ONLY support playback, but seems like the only way to use + * mmap() is to open an FD with RDWR, just read or just write access + * does not function, get an error back from the kernel. + * Also, QuakeIII opens with RDWR! So, there must be something + * to needing read/write access mapping. So, allow read/write but + * use the DAC only. + */ + state = card->states[1]; + if (!state) { + ret = -EINVAL; + goto out; + } + + down(&state->sem); + dmabuf = &state->dmabuf; + if (cs4x_pgoff(vma) != 0) + { + ret = -EINVAL; + goto out; + } + size = vma->vm_end - vma->vm_start; + + CS_DBGOUT(CS_PARMS, 2, printk("cs46xx: cs_mmap(): size=%d\n",(unsigned)size) ); + + if (size > (PAGE_SIZE << dmabuf->buforder)) + { + ret = -EINVAL; + goto out; + } + if (remap_pfn_range(vma, vma->vm_start, + virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, + size, vma->vm_page_prot)) + { + ret = -EAGAIN; + goto out; + } + dmabuf->mapped = 1; + + CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_mmap()-\n") ); +out: + up(&state->sem); + return ret; +} + +static int cs_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + struct cs_state *state; + struct dmabuf *dmabuf=NULL; + unsigned long flags; + audio_buf_info abinfo; + count_info cinfo; + int val, valsave, mapped, ret; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + mapped = (file->f_mode & FMODE_READ) && dmabuf->mapped; + } + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + mapped |= (file->f_mode & FMODE_WRITE) && dmabuf->mapped; + } + +#if CSDEBUG + printioctl(cmd); +#endif + + switch (cmd) + { + case OSS_GETVERSION: + return put_user(SOUND_VERSION, p); + + case SNDCTL_DSP_RESET: + /* FIXME: spin_lock ? */ + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + stop_dac(state); + synchronize_irq(card->irq); + dmabuf->ready = 0; + resync_dma_ptrs(state); + dmabuf->swptr = dmabuf->hwptr = 0; + dmabuf->count = dmabuf->total_bytes = 0; + dmabuf->blocks = 0; + dmabuf->SGok = 0; + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + stop_adc(state); + synchronize_irq(card->irq); + resync_dma_ptrs(state); + dmabuf->ready = 0; + dmabuf->swptr = dmabuf->hwptr = 0; + dmabuf->count = dmabuf->total_bytes = 0; + dmabuf->blocks = 0; + dmabuf->SGok = 0; + } + } + CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_RESET()-\n") ); + return 0; + + case SNDCTL_DSP_SYNC: + if (file->f_mode & FMODE_WRITE) + return drain_dac(state, file->f_flags & O_NONBLOCK); + return 0; + + case SNDCTL_DSP_SPEED: /* set sample rate */ + if (get_user(val, p)) + return -EFAULT; + if (val >= 0) { + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + stop_adc(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + cs_set_adc_rate(state, val); + cs_set_divisor(dmabuf); + } + } + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + stop_dac(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + cs_set_dac_rate(state, val); + cs_set_divisor(dmabuf); + } + } + CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk( + "cs46xx: cs_ioctl() DSP_SPEED %s %s %d\n", + file->f_mode & FMODE_WRITE ? "DAC" : "", + file->f_mode & FMODE_READ ? "ADC" : "", + dmabuf->rate ) ); + return put_user(dmabuf->rate, p); + } + return put_user(0, p); + + case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ + if (get_user(val, p)) + return -EFAULT; + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + stop_dac(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val) + dmabuf->fmt |= CS_FMT_STEREO; + else + dmabuf->fmt &= ~CS_FMT_STEREO; + cs_set_divisor(dmabuf); + CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk( + "cs46xx: DSP_STEREO() DAC %s\n", + (dmabuf->fmt & CS_FMT_STEREO) ? + "STEREO":"MONO") ); + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + stop_adc(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val) + dmabuf->fmt |= CS_FMT_STEREO; + else + dmabuf->fmt &= ~CS_FMT_STEREO; + cs_set_divisor(dmabuf); + CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk( + "cs46xx: DSP_STEREO() ADC %s\n", + (dmabuf->fmt & CS_FMT_STEREO) ? + "STEREO":"MONO") ); + } + } + return 0; + + case SNDCTL_DSP_GETBLKSIZE: + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + if ((val = prog_dmabuf(state))) + return val; + return put_user(dmabuf->fragsize, p); + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + if ((val = prog_dmabuf(state))) + return val; + return put_user(dmabuf->fragsize/dmabuf->divisor, + p); + } + } + return put_user(0, p); + + case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/ + return put_user(AFMT_S16_LE | AFMT_U8, p); + + case SNDCTL_DSP_SETFMT: /* Select sample format */ + if (get_user(val, p)) + return -EFAULT; + CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk( + "cs46xx: cs_ioctl() DSP_SETFMT %s %s %s %s\n", + file->f_mode & FMODE_WRITE ? "DAC" : "", + file->f_mode & FMODE_READ ? "ADC" : "", + val == AFMT_S16_LE ? "16Bit Signed" : "", + val == AFMT_U8 ? "8Bit Unsigned" : "") ); + valsave = val; + if (val != AFMT_QUERY) { + if(val==AFMT_S16_LE || val==AFMT_U8) + { + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + stop_dac(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val==AFMT_S16_LE) + dmabuf->fmt |= CS_FMT_16BIT; + else + dmabuf->fmt &= ~CS_FMT_16BIT; + cs_set_divisor(dmabuf); + if((ret = prog_dmabuf(state))) + return ret; + } + } + if (file->f_mode & FMODE_READ) { + val = valsave; + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + stop_adc(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val==AFMT_S16_LE) + dmabuf->fmt |= CS_FMT_16BIT; + else + dmabuf->fmt &= ~CS_FMT_16BIT; + cs_set_divisor(dmabuf); + if((ret = prog_dmabuf(state))) + return ret; + } + } + } + else + { + CS_DBGOUT(CS_IOCTL | CS_ERROR, 2, printk( + "cs46xx: DSP_SETFMT() Unsupported format (0x%x)\n", + valsave) ); + } + } + else + { + if(file->f_mode & FMODE_WRITE) + { + state = (struct cs_state *)card->states[1]; + if(state) + dmabuf = &state->dmabuf; + } + else if(file->f_mode & FMODE_READ) + { + state = (struct cs_state *)card->states[0]; + if(state) + dmabuf = &state->dmabuf; + } + } + if(dmabuf) + { + if(dmabuf->fmt & CS_FMT_16BIT) + return put_user(AFMT_S16_LE, p); + else + return put_user(AFMT_U8, p); + } + return put_user(0, p); + + case SNDCTL_DSP_CHANNELS: + if (get_user(val, p)) + return -EFAULT; + if (val != 0) { + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + stop_dac(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val>1) + dmabuf->fmt |= CS_FMT_STEREO; + else + dmabuf->fmt &= ~CS_FMT_STEREO; + cs_set_divisor(dmabuf); + if (prog_dmabuf(state)) + return 0; + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + stop_adc(state); + dmabuf->ready = 0; + dmabuf->SGok = 0; + if(val>1) + dmabuf->fmt |= CS_FMT_STEREO; + else + dmabuf->fmt &= ~CS_FMT_STEREO; + cs_set_divisor(dmabuf); + if (prog_dmabuf(state)) + return 0; + } + } + } + return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1, + p); + + case SNDCTL_DSP_POST: + /* + * There will be a longer than normal pause in the data. + * so... do nothing, because there is nothing that we can do. + */ + return 0; + + case SNDCTL_DSP_SUBDIVIDE: + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + if (dmabuf->subdivision) + return -EINVAL; + if (get_user(val, p)) + return -EFAULT; + if (val != 1 && val != 2) + return -EINVAL; + dmabuf->subdivision = val; + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + if (dmabuf->subdivision) + return -EINVAL; + if (get_user(val, p)) + return -EFAULT; + if (val != 1 && val != 2) + return -EINVAL; + dmabuf->subdivision = val; + } + } + return 0; + + case SNDCTL_DSP_SETFRAGMENT: + if (get_user(val, p)) + return -EFAULT; + + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + dmabuf->ossfragshift = val & 0xffff; + dmabuf->ossmaxfrags = (val >> 16) & 0xffff; + } + } + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + dmabuf->ossfragshift = val & 0xffff; + dmabuf->ossmaxfrags = (val >> 16) & 0xffff; + } + } + return 0; + + case SNDCTL_DSP_GETOSPACE: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + spin_lock_irqsave(&state->card->lock, flags); + cs_update_ptr(card, CS_TRUE); + abinfo.fragsize = dmabuf->fragsize; + abinfo.fragstotal = dmabuf->numfrag; + /* + * for mmap we always have total space available + */ + if (dmabuf->mapped) + abinfo.bytes = dmabuf->dmasize; + else + abinfo.bytes = dmabuf->dmasize - dmabuf->count; + + abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; + spin_unlock_irqrestore(&state->card->lock, flags); + return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + } + return -ENODEV; + + case SNDCTL_DSP_GETISPACE: + if (!(file->f_mode & FMODE_READ)) + return -EINVAL; + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + spin_lock_irqsave(&state->card->lock, flags); + cs_update_ptr(card, CS_TRUE); + abinfo.fragsize = dmabuf->fragsize/dmabuf->divisor; + abinfo.bytes = dmabuf->count/dmabuf->divisor; + abinfo.fragstotal = dmabuf->numfrag; + abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; + spin_unlock_irqrestore(&state->card->lock, flags); + return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + } + return -ENODEV; + + case SNDCTL_DSP_NONBLOCK: + file->f_flags |= O_NONBLOCK; + return 0; + + case SNDCTL_DSP_GETCAPS: + return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP, + p); + + case SNDCTL_DSP_GETTRIGGER: + val = 0; + CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()+\n") ); + if (file->f_mode & FMODE_WRITE) + { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + if(dmabuf->enable & DAC_RUNNING) + val |= PCM_ENABLE_INPUT; + } + } + if (file->f_mode & FMODE_READ) + { + if(state) + { + state = (struct cs_state *)card->states[0]; + dmabuf = &state->dmabuf; + if(dmabuf->enable & ADC_RUNNING) + val |= PCM_ENABLE_OUTPUT; + } + } + CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()- val=0x%x\n",val) ); + return put_user(val, p); + + case SNDCTL_DSP_SETTRIGGER: + if (get_user(val, p)) + return -EFAULT; + if (file->f_mode & FMODE_READ) { + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + if (val & PCM_ENABLE_INPUT) { + if (!dmabuf->ready && (ret = prog_dmabuf(state))) + return ret; + start_adc(state); + } else + stop_adc(state); + } + } + if (file->f_mode & FMODE_WRITE) { + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + if (val & PCM_ENABLE_OUTPUT) { + if (!dmabuf->ready && (ret = prog_dmabuf(state))) + return ret; + start_dac(state); + } else + stop_dac(state); + } + } + return 0; + + case SNDCTL_DSP_GETIPTR: + if (!(file->f_mode & FMODE_READ)) + return -EINVAL; + state = (struct cs_state *)card->states[0]; + if(state) + { + dmabuf = &state->dmabuf; + spin_lock_irqsave(&state->card->lock, flags); + cs_update_ptr(card, CS_TRUE); + cinfo.bytes = dmabuf->total_bytes/dmabuf->divisor; + cinfo.blocks = dmabuf->count/dmabuf->divisor >> dmabuf->fragshift; + cinfo.ptr = dmabuf->hwptr/dmabuf->divisor; + spin_unlock_irqrestore(&state->card->lock, flags); + if (copy_to_user(argp, &cinfo, sizeof(cinfo))) + return -EFAULT; + return 0; + } + return -ENODEV; + + case SNDCTL_DSP_GETOPTR: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + spin_lock_irqsave(&state->card->lock, flags); + cs_update_ptr(card, CS_TRUE); + cinfo.bytes = dmabuf->total_bytes; + if (dmabuf->mapped) + { + cinfo.blocks = (cinfo.bytes >> dmabuf->fragshift) + - dmabuf->blocks; + CS_DBGOUT(CS_PARMS, 8, + printk("total_bytes=%d blocks=%d dmabuf->blocks=%d\n", + cinfo.bytes,cinfo.blocks,dmabuf->blocks) ); + dmabuf->blocks = cinfo.bytes >> dmabuf->fragshift; + } + else + { + cinfo.blocks = dmabuf->count >> dmabuf->fragshift; + } + cinfo.ptr = dmabuf->hwptr; + + CS_DBGOUT(CS_PARMS, 4, printk( + "cs46xx: GETOPTR bytes=%d blocks=%d ptr=%d\n", + cinfo.bytes,cinfo.blocks,cinfo.ptr) ); + spin_unlock_irqrestore(&state->card->lock, flags); + if (copy_to_user(argp, &cinfo, sizeof(cinfo))) + return -EFAULT; + return 0; + } + return -ENODEV; + + case SNDCTL_DSP_SETDUPLEX: + return 0; + + case SNDCTL_DSP_GETODELAY: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + spin_lock_irqsave(&state->card->lock, flags); + cs_update_ptr(card, CS_TRUE); + val = dmabuf->count; + spin_unlock_irqrestore(&state->card->lock, flags); + } + else + val = 0; + return put_user(val, p); + + case SOUND_PCM_READ_RATE: + if(file->f_mode & FMODE_READ) + state = (struct cs_state *)card->states[0]; + else + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + return put_user(dmabuf->rate, p); + } + return put_user(0, p); + + + case SOUND_PCM_READ_CHANNELS: + if(file->f_mode & FMODE_READ) + state = (struct cs_state *)card->states[0]; + else + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1, + p); + } + return put_user(0, p); + + case SOUND_PCM_READ_BITS: + if(file->f_mode & FMODE_READ) + state = (struct cs_state *)card->states[0]; + else + state = (struct cs_state *)card->states[1]; + if(state) + { + dmabuf = &state->dmabuf; + return put_user((dmabuf->fmt & CS_FMT_16BIT) ? + AFMT_S16_LE : AFMT_U8, p); + + } + return put_user(0, p); + + case SNDCTL_DSP_MAPINBUF: + case SNDCTL_DSP_MAPOUTBUF: + case SNDCTL_DSP_SETSYNCRO: + case SOUND_PCM_WRITE_FILTER: + case SOUND_PCM_READ_FILTER: + return -EINVAL; + } + return -EINVAL; +} + + +/* + * AMP control - null AMP + */ + +static void amp_none(struct cs_card *card, int change) +{ +} + +/* + * Crystal EAPD mode + */ + +static void amp_voyetra(struct cs_card *card, int change) +{ + /* Manage the EAPD bit on the Crystal 4297 + and the Analog AD1885 */ + + int old=card->amplifier; + + card->amplifier+=change; + if(card->amplifier && !old) + { + /* Turn the EAPD amp on */ + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, + cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) | + 0x8000); + } + else if(old && !card->amplifier) + { + /* Turn the EAPD amp off */ + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, + cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + ~0x8000); + } +} + + +/* + * Game Theatre XP card - EGPIO[2] is used to enable the external amp. + */ + +static void amp_hercules(struct cs_card *card, int change) +{ + int old=card->amplifier; + if(!card) + { + CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO + "cs46xx: amp_hercules() called before initialized.\n")); + return; + } + card->amplifier+=change; + if( (card->amplifier && !old) && !(hercules_egpio_disable)) + { + CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO + "cs46xx: amp_hercules() external amp enabled\n")); + cs461x_pokeBA0(card, BA0_EGPIODR, + EGPIODR_GPOE2); /* enable EGPIO2 output */ + cs461x_pokeBA0(card, BA0_EGPIOPTR, + EGPIOPTR_GPPT2); /* open-drain on output */ + } + else if(old && !card->amplifier) + { + CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO + "cs46xx: amp_hercules() external amp disabled\n")); + cs461x_pokeBA0(card, BA0_EGPIODR, 0); /* disable */ + cs461x_pokeBA0(card, BA0_EGPIOPTR, 0); /* disable */ + } +} + +/* + * Handle the CLKRUN on a thinkpad. We must disable CLKRUN support + * whenever we need to beat on the chip. + * + * The original idea and code for this hack comes from David Kaiser at + * Linuxcare. Perhaps one day Crystal will document their chips well + * enough to make them useful. + */ + +static void clkrun_hack(struct cs_card *card, int change) +{ + struct pci_dev *acpi_dev; + u16 control; + u8 pp; + unsigned long port; + int old=card->active; + + card->active+=change; + + acpi_dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + if(acpi_dev == NULL) + return; /* Not a thinkpad thats for sure */ + + /* Find the control port */ + pci_read_config_byte(acpi_dev, 0x41, &pp); + port=pp<<8; + + /* Read ACPI port */ + control=inw(port+0x10); + + /* Flip CLKRUN off while running */ + if(!card->active && old) + { + CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO + "cs46xx: clkrun() enable clkrun - change=%d active=%d\n", + change,card->active)); + outw(control|0x2000, port+0x10); + } + else + { + /* + * sometimes on a resume the bit is set, so always reset the bit. + */ + CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO + "cs46xx: clkrun() disable clkrun - change=%d active=%d\n", + change,card->active)); + outw(control&~0x2000, port+0x10); + } +} + + +static int cs_open(struct inode *inode, struct file *file) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + struct cs_state *state = NULL; + struct dmabuf *dmabuf = NULL; + struct list_head *entry; + unsigned int minor = iminor(inode); + int ret=0; + unsigned int tmp; + + CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()+ file=%p %s %s\n", + file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "", + file->f_mode & FMODE_READ ? "FMODE_READ" : "") ); + + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + + if (!((card->dev_audio ^ minor) & ~0xf)) + break; + } + if (entry == &cs46xx_devs) + return -ENODEV; + if (!card) { + CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO + "cs46xx: cs_open(): Error - unable to find audio card struct\n")); + return -ENODEV; + } + + /* + * hardcode state[0] for capture, [1] for playback + */ + if(file->f_mode & FMODE_READ) + { + CS_DBGOUT(CS_WAVE_READ, 2, printk("cs46xx: cs_open() FMODE_READ\n") ); + if (card->states[0] == NULL) { + state = card->states[0] = (struct cs_state *) + kmalloc(sizeof(struct cs_state), GFP_KERNEL); + if (state == NULL) + return -ENOMEM; + memset(state, 0, sizeof(struct cs_state)); + init_MUTEX(&state->sem); + dmabuf = &state->dmabuf; + dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if(dmabuf->pbuf==NULL) + { + kfree(state); + card->states[0]=NULL; + return -ENOMEM; + } + } + else + { + state = card->states[0]; + if(state->open_mode & FMODE_READ) + return -EBUSY; + } + dmabuf->channel = card->alloc_rec_pcm_channel(card); + + if (dmabuf->channel == NULL) { + kfree (card->states[0]); + card->states[0] = NULL; + return -ENODEV; + } + + /* Now turn on external AMP if needed */ + state->card = card; + state->card->active_ctrl(state->card,1); + state->card->amplifier_ctrl(state->card,1); + + if( (tmp = cs46xx_powerup(card, CS_POWER_ADC)) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs46xx_powerup of ADC failed (0x%x)\n",tmp) ); + return -EIO; + } + + dmabuf->channel->state = state; + /* initialize the virtual channel */ + state->virt = 0; + state->magic = CS_STATE_MAGIC; + init_waitqueue_head(&dmabuf->wait); + init_MUTEX(&state->open_sem); + file->private_data = card; + + down(&state->open_sem); + + /* set default sample format. According to OSS Programmer's Guide /dev/dsp + should be default to unsigned 8-bits, mono, with sample rate 8kHz and + /dev/dspW will accept 16-bits sample */ + + /* Default input is 8bit mono */ + dmabuf->fmt &= ~CS_FMT_MASK; + dmabuf->type = CS_TYPE_ADC; + dmabuf->ossfragshift = 0; + dmabuf->ossmaxfrags = 0; + dmabuf->subdivision = 0; + cs_set_adc_rate(state, 8000); + cs_set_divisor(dmabuf); + + state->open_mode |= FMODE_READ; + up(&state->open_sem); + } + if(file->f_mode & FMODE_WRITE) + { + CS_DBGOUT(CS_OPEN, 2, printk("cs46xx: cs_open() FMODE_WRITE\n") ); + if (card->states[1] == NULL) { + state = card->states[1] = (struct cs_state *) + kmalloc(sizeof(struct cs_state), GFP_KERNEL); + if (state == NULL) + return -ENOMEM; + memset(state, 0, sizeof(struct cs_state)); + init_MUTEX(&state->sem); + dmabuf = &state->dmabuf; + dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if(dmabuf->pbuf==NULL) + { + kfree(state); + card->states[1]=NULL; + return -ENOMEM; + } + } + else + { + state = card->states[1]; + if(state->open_mode & FMODE_WRITE) + return -EBUSY; + } + dmabuf->channel = card->alloc_pcm_channel(card); + + if (dmabuf->channel == NULL) { + kfree (card->states[1]); + card->states[1] = NULL; + return -ENODEV; + } + + /* Now turn on external AMP if needed */ + state->card = card; + state->card->active_ctrl(state->card,1); + state->card->amplifier_ctrl(state->card,1); + + if( (tmp = cs46xx_powerup(card, CS_POWER_DAC)) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs46xx_powerup of DAC failed (0x%x)\n",tmp) ); + return -EIO; + } + + dmabuf->channel->state = state; + /* initialize the virtual channel */ + state->virt = 1; + state->magic = CS_STATE_MAGIC; + init_waitqueue_head(&dmabuf->wait); + init_MUTEX(&state->open_sem); + file->private_data = card; + + down(&state->open_sem); + + /* set default sample format. According to OSS Programmer's Guide /dev/dsp + should be default to unsigned 8-bits, mono, with sample rate 8kHz and + /dev/dspW will accept 16-bits sample */ + + /* Default output is 8bit mono. */ + dmabuf->fmt &= ~CS_FMT_MASK; + dmabuf->type = CS_TYPE_DAC; + dmabuf->ossfragshift = 0; + dmabuf->ossmaxfrags = 0; + dmabuf->subdivision = 0; + cs_set_dac_rate(state, 8000); + cs_set_divisor(dmabuf); + + state->open_mode |= FMODE_WRITE; + up(&state->open_sem); + if((ret = prog_dmabuf(state))) + return ret; + } + CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()- 0\n") ); + return nonseekable_open(inode, file); +} + +static int cs_release(struct inode *inode, struct file *file) +{ + struct cs_card *card = (struct cs_card *)file->private_data; + struct dmabuf *dmabuf; + struct cs_state *state; + unsigned int tmp; + CS_DBGOUT(CS_RELEASE | CS_FUNCTION, 2, printk("cs46xx: cs_release()+ file=%p %s %s\n", + file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "", + file->f_mode & FMODE_READ ? "FMODE_READ" : "") ); + + if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) + { + return -EINVAL; + } + state = card->states[1]; + if(state) + { + if ( (state->open_mode & FMODE_WRITE) & (file->f_mode & FMODE_WRITE) ) + { + CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_WRITE\n") ); + dmabuf = &state->dmabuf; + cs_clear_tail(state); + drain_dac(state, file->f_flags & O_NONBLOCK); + /* stop DMA state machine and free DMA buffers/channels */ + down(&state->open_sem); + stop_dac(state); + dealloc_dmabuf(state); + state->card->free_pcm_channel(state->card, dmabuf->channel->num); + free_page((unsigned long)state->dmabuf.pbuf); + + /* we're covered by the open_sem */ + up(&state->open_sem); + state->card->states[state->virt] = NULL; + state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); + + if( (tmp = cs461x_powerdown(card, CS_POWER_DAC, CS_FALSE )) ) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO + "cs46xx: cs_release_mixdev() powerdown DAC failure (0x%x)\n",tmp) ); + } + + /* Now turn off external AMP if needed */ + state->card->amplifier_ctrl(state->card, -1); + state->card->active_ctrl(state->card, -1); + + kfree(state); + } + } + + state = card->states[0]; + if(state) + { + if ( (state->open_mode & FMODE_READ) & (file->f_mode & FMODE_READ) ) + { + CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_READ\n") ); + dmabuf = &state->dmabuf; + down(&state->open_sem); + stop_adc(state); + dealloc_dmabuf(state); + state->card->free_pcm_channel(state->card, dmabuf->channel->num); + free_page((unsigned long)state->dmabuf.pbuf); + + /* we're covered by the open_sem */ + up(&state->open_sem); + state->card->states[state->virt] = NULL; + state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); + + if( (tmp = cs461x_powerdown(card, CS_POWER_ADC, CS_FALSE )) ) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO + "cs46xx: cs_release_mixdev() powerdown ADC failure (0x%x)\n",tmp) ); + } + + /* Now turn off external AMP if needed */ + state->card->amplifier_ctrl(state->card, -1); + state->card->active_ctrl(state->card, -1); + + kfree(state); + } + } + + CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk("cs46xx: cs_release()- 0\n") ); + return 0; +} + +static void printpm(struct cs_card *s) +{ + CS_DBGOUT(CS_PM, 9, printk("pm struct:\n")); + CS_DBGOUT(CS_PM, 9, printk("flags:0x%x u32CLKCR1_SAVE: 0%x u32SSPMValue: 0x%x\n", + (unsigned)s->pm.flags,s->pm.u32CLKCR1_SAVE,s->pm.u32SSPMValue)); + CS_DBGOUT(CS_PM, 9, printk("u32PPLVCvalue: 0x%x u32PPRVCvalue: 0x%x\n", + s->pm.u32PPLVCvalue,s->pm.u32PPRVCvalue)); + CS_DBGOUT(CS_PM, 9, printk("u32FMLVCvalue: 0x%x u32FMRVCvalue: 0x%x\n", + s->pm.u32FMLVCvalue,s->pm.u32FMRVCvalue)); + CS_DBGOUT(CS_PM, 9, printk("u32GPIORvalue: 0x%x u32JSCTLvalue: 0x%x\n", + s->pm.u32GPIORvalue,s->pm.u32JSCTLvalue)); + CS_DBGOUT(CS_PM, 9, printk("u32SSCR: 0x%x u32SRCSA: 0x%x\n", + s->pm.u32SSCR,s->pm.u32SRCSA)); + CS_DBGOUT(CS_PM, 9, printk("u32DacASR: 0x%x u32AdcASR: 0x%x\n", + s->pm.u32DacASR,s->pm.u32AdcASR)); + CS_DBGOUT(CS_PM, 9, printk("u32DacSR: 0x%x u32AdcSR: 0x%x\n", + s->pm.u32DacSR,s->pm.u32AdcSR)); + CS_DBGOUT(CS_PM, 9, printk("u32MIDCR_Save: 0x%x\n", + s->pm.u32MIDCR_Save)); + CS_DBGOUT(CS_PM, 9, printk("u32AC97_powerdown: 0x%x _general_purpose 0x%x\n", + s->pm.u32AC97_powerdown,s->pm.u32AC97_general_purpose)); + CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume: 0x%x\n", + s->pm.u32AC97_master_volume)); + CS_DBGOUT(CS_PM, 9, printk("u32AC97_headphone_volume: 0x%x\n", + s->pm.u32AC97_headphone_volume)); + CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume_mono: 0x%x\n", + s->pm.u32AC97_master_volume_mono)); + CS_DBGOUT(CS_PM, 9, printk("u32AC97_pcm_out_volume: 0x%x\n", + s->pm.u32AC97_pcm_out_volume)); + CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_play: 0x%x dmabuf_count_play: %d\n", + s->pm.dmabuf_swptr_play,s->pm.dmabuf_count_play)); + CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_capture: 0x%x dmabuf_count_capture: %d\n", + s->pm.dmabuf_swptr_capture,s->pm.dmabuf_count_capture)); + +} + +/**************************************************************************** +* +* Suspend - save the ac97 regs, mute the outputs and power down the part. +* +****************************************************************************/ +static void cs46xx_ac97_suspend(struct cs_card *card) +{ + int Count,i; + struct ac97_codec *dev=card->ac97_codec[0]; + unsigned int tmp; + + CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()+\n")); + + if(card->states[1]) + { + stop_dac(card->states[1]); + resync_dma_ptrs(card->states[1]); + } + if(card->states[0]) + { + stop_adc(card->states[0]); + resync_dma_ptrs(card->states[0]); + } + + for(Count = 0x2, i=0; (Count <= CS46XX_AC97_HIGHESTREGTORESTORE) + && (i < CS46XX_AC97_NUMBER_RESTORE_REGS); + Count += 2, i++) + { + card->pm.ac97[i] = cs_ac97_get(dev, BA0_AC97_RESET + Count); + } +/* +* Save the ac97 volume registers as well as the current powerdown state. +* Now, mute the all the outputs (master, headphone, and mono), as well +* as the PCM volume, in preparation for powering down the entire part. + card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev, + (u8)BA0_AC97_MASTER_VOLUME); + card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_HEADPHONE_VOLUME); + card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_MASTER_VOLUME_MONO); + card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev, + (u8)BA0_AC97_PCM_OUT_VOLUME); +*/ +/* +* mute the outputs +*/ + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000); + cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000); + +/* +* save the registers that cause pops +*/ + card->pm.u32AC97_powerdown = (u32)cs_ac97_get(dev, (u8)AC97_POWER_CONTROL); + card->pm.u32AC97_general_purpose = (u32)cs_ac97_get(dev, (u8)BA0_AC97_GENERAL_PURPOSE); +/* +* And power down everything on the AC97 codec. +* well, for now, only power down the DAC/ADC and MIXER VREFON components. +* trouble with removing VREF. +*/ + if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC | + CS_POWER_MIXVON, CS_TRUE )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs46xx_ac97_suspend() failure (0x%x)\n",tmp) ); + } + + CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()-\n")); +} + +/**************************************************************************** +* +* Resume - power up the part and restore its registers.. +* +****************************************************************************/ +static void cs46xx_ac97_resume(struct cs_card *card) +{ + int Count,i; + struct ac97_codec *dev=card->ac97_codec[0]; + + CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()+\n")); + +/* +* First, we restore the state of the general purpose register. This +* contains the mic select (mic1 or mic2) and if we restore this after +* we restore the mic volume/boost state and mic2 was selected at +* suspend time, we will end up with a brief period of time where mic1 +* is selected with the volume/boost settings for mic2, causing +* acoustic feedback. So we restore the general purpose register +* first, thereby getting the correct mic selected before we restore +* the mic volume/boost. +*/ + cs_ac97_set(dev, (u8)BA0_AC97_GENERAL_PURPOSE, + (u16)card->pm.u32AC97_general_purpose); +/* +* Now, while the outputs are still muted, restore the state of power +* on the AC97 part. +*/ + cs_ac97_set(dev, (u8)BA0_AC97_POWERDOWN, (u16)card->pm.u32AC97_powerdown); + mdelay(5 * cs_laptop_wait); +/* +* Restore just the first set of registers, from register number +* 0x02 to the register number that ulHighestRegToRestore specifies. +*/ + for( Count = 0x2, i=0; + (Count <= CS46XX_AC97_HIGHESTREGTORESTORE) + && (i < CS46XX_AC97_NUMBER_RESTORE_REGS); + Count += 2, i++) + { + cs_ac97_set(dev, (u8)(BA0_AC97_RESET + Count), (u16)card->pm.ac97[i]); + } + + /* Check if we have to init the amplifier */ + if(card->amp_init) + card->amp_init(card); + + CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()-\n")); +} + + +static int cs46xx_restart_part(struct cs_card *card) +{ + struct dmabuf *dmabuf; + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, + printk( "cs46xx: cs46xx_restart_part()+\n")); + if(card->states[1]) + { + dmabuf = &card->states[1]->dmabuf; + dmabuf->ready = 0; + resync_dma_ptrs(card->states[1]); + cs_set_divisor(dmabuf); + if(__prog_dmabuf(card->states[1])) + { + CS_DBGOUT(CS_PM | CS_ERROR, 1, + printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() dac error\n")); + return -1; + } + cs_set_dac_rate(card->states[1], dmabuf->rate); + } + if(card->states[0]) + { + dmabuf = &card->states[0]->dmabuf; + dmabuf->ready = 0; + resync_dma_ptrs(card->states[0]); + cs_set_divisor(dmabuf); + if(__prog_dmabuf(card->states[0])) + { + CS_DBGOUT(CS_PM | CS_ERROR, 1, + printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() adc error\n")); + return -1; + } + cs_set_adc_rate(card->states[0], dmabuf->rate); + } + card->pm.flags |= CS46XX_PM_RESUMED; + if(card->states[0]) + start_adc(card->states[0]); + if(card->states[1]) + start_dac(card->states[1]); + + card->pm.flags |= CS46XX_PM_IDLE; + card->pm.flags &= ~(CS46XX_PM_SUSPENDING | CS46XX_PM_SUSPENDED + | CS46XX_PM_RESUMING | CS46XX_PM_RESUMED); + if(card->states[0]) + wake_up(&card->states[0]->dmabuf.wait); + if(card->states[1]) + wake_up(&card->states[1]->dmabuf.wait); + + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, + printk( "cs46xx: cs46xx_restart_part()-\n")); + return 0; +} + + +static void cs461x_reset(struct cs_card *card); +static void cs461x_proc_stop(struct cs_card *card); +static int cs46xx_suspend(struct cs_card *card, u32 state) +{ + unsigned int tmp; + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, + printk("cs46xx: cs46xx_suspend()+ flags=0x%x s=%p\n", + (unsigned)card->pm.flags,card)); +/* +* check the current state, only suspend if IDLE +*/ + if(!(card->pm.flags & CS46XX_PM_IDLE)) + { + CS_DBGOUT(CS_PM | CS_ERROR, 2, + printk("cs46xx: cs46xx_suspend() unable to suspend, not IDLE\n")); + return 1; + } + card->pm.flags &= ~CS46XX_PM_IDLE; + card->pm.flags |= CS46XX_PM_SUSPENDING; + + card->active_ctrl(card,1); + + tmp = cs461x_peek(card, BA1_PFIE); + tmp &= ~0x0000f03f; + tmp |= 0x00000010; + cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */ + + tmp = cs461x_peek(card, BA1_CIE); + tmp &= ~0x0000003f; + tmp |= 0x00000011; + cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */ + + /* + * Stop playback DMA. + */ + tmp = cs461x_peek(card, BA1_PCTL); + cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff); + + /* + * Stop capture DMA. + */ + tmp = cs461x_peek(card, BA1_CCTL); + cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000); + + if(card->states[1]) + { + card->pm.dmabuf_swptr_play = card->states[1]->dmabuf.swptr; + card->pm.dmabuf_count_play = card->states[1]->dmabuf.count; + } + if(card->states[0]) + { + card->pm.dmabuf_swptr_capture = card->states[0]->dmabuf.swptr; + card->pm.dmabuf_count_capture = card->states[0]->dmabuf.count; + } + + cs46xx_ac97_suspend(card); + + /* + * Reset the processor. + */ + cs461x_reset(card); + + cs461x_proc_stop(card); + + /* + * Power down the DAC and ADC. For now leave the other areas on. + */ + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, 0x0300); + + /* + * Power down the PLL. + */ + cs461x_pokeBA0(card, BA0_CLKCR1, 0); + + /* + * Turn off the Processor by turning off the software clock enable flag in + * the clock control register. + */ + tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; + cs461x_pokeBA0(card, BA0_CLKCR1, tmp); + + card->active_ctrl(card,-1); + + card->pm.flags &= ~CS46XX_PM_SUSPENDING; + card->pm.flags |= CS46XX_PM_SUSPENDED; + + printpm(card); + + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, + printk("cs46xx: cs46xx_suspend()- flags=0x%x\n", + (unsigned)card->pm.flags)); + return 0; +} + +static int cs46xx_resume(struct cs_card *card) +{ + int i; + + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, + printk( "cs46xx: cs46xx_resume()+ flags=0x%x\n", + (unsigned)card->pm.flags)); + if(!(card->pm.flags & CS46XX_PM_SUSPENDED)) + { + CS_DBGOUT(CS_PM | CS_ERROR, 2, + printk("cs46xx: cs46xx_resume() unable to resume, not SUSPENDED\n")); + return 1; + } + card->pm.flags |= CS46XX_PM_RESUMING; + card->pm.flags &= ~CS46XX_PM_SUSPENDED; + printpm(card); + card->active_ctrl(card, 1); + + for(i=0;i<5;i++) + { + if (cs_hardware_init(card) != 0) + { + CS_DBGOUT(CS_PM | CS_ERROR, 4, printk( + "cs46xx: cs46xx_resume()- ERROR in cs_hardware_init()\n")); + mdelay(10 * cs_laptop_wait); + cs461x_reset(card); + continue; + } + break; + } + if(i>=4) + { + CS_DBGOUT(CS_PM | CS_ERROR, 1, printk( + "cs46xx: cs46xx_resume()- cs_hardware_init() failed, retried %d times.\n",i)); + return 0; + } + + if(cs46xx_restart_part(card)) + { + CS_DBGOUT(CS_PM | CS_ERROR, 4, printk( + "cs46xx: cs46xx_resume(): cs46xx_restart_part() returned error\n")); + } + + card->active_ctrl(card, -1); + + CS_DBGOUT(CS_PM | CS_FUNCTION, 4, printk("cs46xx: cs46xx_resume()- flags=0x%x\n", + (unsigned)card->pm.flags)); + return 0; +} + +static /*const*/ struct file_operations cs461x_fops = { + CS_OWNER CS_THIS_MODULE + .llseek = no_llseek, + .read = cs_read, + .write = cs_write, + .poll = cs_poll, + .ioctl = cs_ioctl, + .mmap = cs_mmap, + .open = cs_open, + .release = cs_release, +}; + +/* Write AC97 codec registers */ + + +static u16 _cs_ac97_get(struct ac97_codec *dev, u8 reg) +{ + struct cs_card *card = dev->private_data; + int count,loopcnt; + unsigned int tmp; + u16 ret; + + /* + * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address + * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 + * 3. Write ACCTL = Control Register = 460h for initiating the write + * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h + * 5. if DCV not cleared, break and return error + * 6. Read ACSTS = Status Register = 464h, check VSTS bit + */ + + cs461x_peekBA0(card, BA0_ACSDA); + + /* + * Setup the AC97 control registers on the CS461x to send the + * appropriate command to the AC97 to perform the read. + * ACCAD = Command Address Register = 46Ch + * ACCDA = Command Data Register = 470h + * ACCTL = Control Register = 460h + * set DCV - will clear when process completed + * set CRW - Read command + * set VFRM - valid frame enabled + * set ESYN - ASYNC generation enabled + * set RSTN - ARST# inactive, AC97 codec not reset + */ + + cs461x_pokeBA0(card, BA0_ACCAD, reg); + cs461x_pokeBA0(card, BA0_ACCDA, 0); + cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW | + ACCTL_VFRM | ACCTL_ESYN | + ACCTL_RSTN); + + + /* + * Wait for the read to occur. + */ + if(!(card->pm.flags & CS46XX_PM_IDLE)) + loopcnt = 2000; + else + loopcnt = 500 * cs_laptop_wait; + loopcnt *= cs_laptop_wait; + for (count = 0; count < loopcnt; count++) { + /* + * First, we want to wait for a short time. + */ + udelay(10 * cs_laptop_wait); + /* + * Now, check to see if the read has completed. + * ACCTL = 460h, DCV should be reset by now and 460h = 17h + */ + if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV)) + break; + } + + /* + * Make sure the read completed. + */ + if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: AC'97 read problem (ACCTL_DCV), reg = 0x%x returning 0xffff\n", reg)); + return 0xffff; + } + + /* + * Wait for the valid status bit to go active. + */ + + if(!(card->pm.flags & CS46XX_PM_IDLE)) + loopcnt = 2000; + else + loopcnt = 1000; + loopcnt *= cs_laptop_wait; + for (count = 0; count < loopcnt; count++) { + /* + * Read the AC97 status register. + * ACSTS = Status Register = 464h + * VSTS - Valid Status + */ + if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_VSTS) + break; + udelay(10 * cs_laptop_wait); + } + + /* + * Make sure we got valid status. + */ + if (!( (tmp=cs461x_peekBA0(card, BA0_ACSTS)) & ACSTS_VSTS)) { + CS_DBGOUT(CS_ERROR, 2, printk(KERN_WARNING + "cs46xx: AC'97 read problem (ACSTS_VSTS), reg = 0x%x val=0x%x 0xffff \n", + reg, tmp)); + return 0xffff; + } + + /* + * Read the data returned from the AC97 register. + * ACSDA = Status Data Register = 474h + */ + CS_DBGOUT(CS_FUNCTION, 9, printk(KERN_INFO + "cs46xx: cs_ac97_get() reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", + reg, cs461x_peekBA0(card, BA0_ACSDA), + cs461x_peekBA0(card, BA0_ACCAD))); + ret = cs461x_peekBA0(card, BA0_ACSDA); + return ret; +} + +static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg) +{ + u16 ret; + struct cs_card *card = dev->private_data; + + spin_lock(&card->ac97_lock); + ret = _cs_ac97_get(dev, reg); + spin_unlock(&card->ac97_lock); + return ret; +} + +static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 val) +{ + struct cs_card *card = dev->private_data; + int count; + int val2 = 0; + + spin_lock(&card->ac97_lock); + + if(reg == AC97_CD_VOL) + { + val2 = _cs_ac97_get(dev, AC97_CD_VOL); + } + + + /* + * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address + * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 + * 3. Write ACCTL = Control Register = 460h for initiating the write + * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h + * 5. if DCV not cleared, break and return error + */ + + /* + * Setup the AC97 control registers on the CS461x to send the + * appropriate command to the AC97 to perform the read. + * ACCAD = Command Address Register = 46Ch + * ACCDA = Command Data Register = 470h + * ACCTL = Control Register = 460h + * set DCV - will clear when process completed + * reset CRW - Write command + * set VFRM - valid frame enabled + * set ESYN - ASYNC generation enabled + * set RSTN - ARST# inactive, AC97 codec not reset + */ + cs461x_pokeBA0(card, BA0_ACCAD, reg); + cs461x_pokeBA0(card, BA0_ACCDA, val); + cs461x_peekBA0(card, BA0_ACCTL); + cs461x_pokeBA0(card, BA0_ACCTL, 0 | ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN); + cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM | + ACCTL_ESYN | ACCTL_RSTN); + for (count = 0; count < 1000; count++) { + /* + * First, we want to wait for a short time. + */ + udelay(10 * cs_laptop_wait); + /* + * Now, check to see if the write has completed. + * ACCTL = 460h, DCV should be reset by now and 460h = 07h + */ + if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV)) + break; + } + /* + * Make sure the write completed. + */ + if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val)); + } + + spin_unlock(&card->ac97_lock); + + /* + * Adjust power if the mixer is selected/deselected according + * to the CD. + * + * IF the CD is a valid input source (mixer or direct) AND + * the CD is not muted THEN power is needed + * + * We do two things. When record select changes the input to + * add/remove the CD we adjust the power count if the CD is + * unmuted. + * + * When the CD mute changes we adjust the power level if the + * CD was a valid input. + * + * We also check for CD volume != 0, as the CD mute isn't + * normally tweaked from userspace. + */ + + /* CD mute change ? */ + + if(reg==AC97_CD_VOL) + { + /* Mute bit change ? */ + if((val2^val)&0x8000 || ((val2 == 0x1f1f || val == 0x1f1f) && val2 != val)) + { + /* This is a hack but its cleaner than the alternatives. + Right now card->ac97_codec[0] might be NULL as we are + still doing codec setup. This does an early assignment + to avoid the problem if it occurs */ + + if(card->ac97_codec[0]==NULL) + card->ac97_codec[0]=dev; + + /* Mute on */ + if(val&0x8000 || val == 0x1f1f) + card->amplifier_ctrl(card, -1); + else /* Mute off power on */ + { + if(card->amp_init) + card->amp_init(card); + card->amplifier_ctrl(card, 1); + } + } + } +} + + +/* OSS /dev/mixer file operation methods */ + +static int cs_open_mixdev(struct inode *inode, struct file *file) +{ + int i=0; + unsigned int minor = iminor(inode); + struct cs_card *card=NULL; + struct list_head *entry; + unsigned int tmp; + + CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, + printk(KERN_INFO "cs46xx: cs_open_mixdev()+\n")); + + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + for (i = 0; i < NR_AC97; i++) + if (card->ac97_codec[i] != NULL && + card->ac97_codec[i]->dev_mixer == minor) + goto match; + } + if (!card) + { + CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, + printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n")); + return -ENODEV; + } + match: + if(!card->ac97_codec[i]) + return -ENODEV; + file->private_data = card->ac97_codec[i]; + + card->active_ctrl(card,1); + if(!CS_IN_USE(&card->mixer_use_cnt)) + { + if( (tmp = cs46xx_powerup(card, CS_POWER_MIXVON )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs_open_mixdev() powerup failure (0x%x)\n",tmp) ); + return -EIO; + } + } + card->amplifier_ctrl(card, 1); + CS_INC_USE_COUNT(&card->mixer_use_cnt); + CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, + printk(KERN_INFO "cs46xx: cs_open_mixdev()- 0\n")); + return nonseekable_open(inode, file); +} + +static int cs_release_mixdev(struct inode *inode, struct file *file) +{ + unsigned int minor = iminor(inode); + struct cs_card *card=NULL; + struct list_head *entry; + int i; + unsigned int tmp; + + CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4, + printk(KERN_INFO "cs46xx: cs_release_mixdev()+\n")); + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + for (i = 0; i < NR_AC97; i++) + if (card->ac97_codec[i] != NULL && + card->ac97_codec[i]->dev_mixer == minor) + goto match; + } + if (!card) + { + CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, + printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n")); + return -ENODEV; + } +match: + if(!CS_DEC_AND_TEST(&card->mixer_use_cnt)) + { + CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4, + printk(KERN_INFO "cs46xx: cs_release_mixdev()- no powerdown, usecnt>0\n")); + card->active_ctrl(card, -1); + card->amplifier_ctrl(card, -1); + return 0; + } +/* +* ok, no outstanding mixer opens, so powerdown. +*/ + if( (tmp = cs461x_powerdown(card, CS_POWER_MIXVON, CS_FALSE )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs_release_mixdev() powerdown MIXVON failure (0x%x)\n",tmp) ); + card->active_ctrl(card, -1); + card->amplifier_ctrl(card, -1); + return -EIO; + } + card->active_ctrl(card, -1); + card->amplifier_ctrl(card, -1); + CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4, + printk(KERN_INFO "cs46xx: cs_release_mixdev()- 0\n")); + return 0; +} + +static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct ac97_codec *codec = (struct ac97_codec *)file->private_data; + struct cs_card *card=NULL; + struct list_head *entry; + unsigned long __user *p = (long __user *)arg; + +#if CSDEBUG_INTERFACE + int val; + + if( (cmd == SOUND_MIXER_CS_GETDBGMASK) || + (cmd == SOUND_MIXER_CS_SETDBGMASK) || + (cmd == SOUND_MIXER_CS_GETDBGLEVEL) || + (cmd == SOUND_MIXER_CS_SETDBGLEVEL) || + (cmd == SOUND_MIXER_CS_APM)) + { + switch(cmd) + { + + case SOUND_MIXER_CS_GETDBGMASK: + return put_user(cs_debugmask, p); + + case SOUND_MIXER_CS_GETDBGLEVEL: + return put_user(cs_debuglevel, p); + + case SOUND_MIXER_CS_SETDBGMASK: + if (get_user(val, p)) + return -EFAULT; + cs_debugmask = val; + return 0; + + case SOUND_MIXER_CS_SETDBGLEVEL: + if (get_user(val, p)) + return -EFAULT; + cs_debuglevel = val; + return 0; + + case SOUND_MIXER_CS_APM: + if (get_user(val, p)) + return -EFAULT; + if(val == CS_IOCTL_CMD_SUSPEND) + { + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + cs46xx_suspend(card, 0); + } + + } + else if(val == CS_IOCTL_CMD_RESUME) + { + list_for_each(entry, &cs46xx_devs) + { + card = list_entry(entry, struct cs_card, list); + cs46xx_resume(card); + } + } + else + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO + "cs46xx: mixer_ioctl(): invalid APM cmd (%d)\n", + val)); + } + return 0; + + default: + CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO + "cs46xx: mixer_ioctl(): ERROR unknown debug cmd\n") ); + return 0; + } + } +#endif + return codec->mixer_ioctl(codec, cmd, arg); +} + +static /*const*/ struct file_operations cs_mixer_fops = { + CS_OWNER CS_THIS_MODULE + .llseek = no_llseek, + .ioctl = cs_ioctl_mixdev, + .open = cs_open_mixdev, + .release = cs_release_mixdev, +}; + +/* AC97 codec initialisation. */ +static int __init cs_ac97_init(struct cs_card *card) +{ + int num_ac97 = 0; + int ready_2nd = 0; + struct ac97_codec *codec; + u16 eid; + + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_ac97_init()+\n") ); + + for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { + if ((codec = ac97_alloc_codec()) == NULL) + return -ENOMEM; + + /* initialize some basic codec information, other fields will be filled + in ac97_probe_codec */ + codec->private_data = card; + codec->id = num_ac97; + + codec->codec_read = cs_ac97_get; + codec->codec_write = cs_ac97_set; + + if (ac97_probe_codec(codec) == 0) + { + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_ac97_init()- codec number %d not found\n", + num_ac97) ); + card->ac97_codec[num_ac97] = NULL; + break; + } + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_ac97_init() found codec %d\n",num_ac97) ); + + eid = cs_ac97_get(codec, AC97_EXTENDED_ID); + + if(eid==0xFFFF) + { + printk(KERN_WARNING "cs46xx: codec %d not present\n",num_ac97); + ac97_release_codec(codec); + break; + } + + card->ac97_features = eid; + + if ((codec->dev_mixer = register_sound_mixer(&cs_mixer_fops, -1)) < 0) { + printk(KERN_ERR "cs46xx: couldn't register mixer!\n"); + ac97_release_codec(codec); + break; + } + card->ac97_codec[num_ac97] = codec; + + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_ac97_init() ac97_codec[%d] set to %p\n", + (unsigned int)num_ac97, + codec)); + /* if there is no secondary codec at all, don't probe any more */ + if (!ready_2nd) + { + num_ac97 += 1; + break; + } + } + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_ac97_init()- %d\n", (unsigned int)num_ac97)); + return num_ac97; +} + +/* + * load the static image into the DSP + */ +#include "cs461x_image.h" +static void cs461x_download_image(struct cs_card *card) +{ + unsigned i, j, temp1, temp2, offset, count; + unsigned char __iomem *pBA1 = ioremap(card->ba1_addr, 0x40000); + for( i=0; i < CLEAR__COUNT; i++) + { + offset = ClrStat[i].BA1__DestByteOffset; + count = ClrStat[i].BA1__SourceSize; + for( temp1 = offset; temp1<(offset+count); temp1+=4 ) + writel(0, pBA1+temp1); + } + + for(i=0; i<FILL__COUNT; i++) + { + temp2 = FillStat[i].Offset; + for(j=0; j<(FillStat[i].Size)/4; j++) + { + temp1 = (FillStat[i]).pFill[j]; + writel(temp1, pBA1+temp2+j*4); + } + } + iounmap(pBA1); +} + + +/* + * Chip reset + */ + +static void cs461x_reset(struct cs_card *card) +{ + int idx; + + /* + * Write the reset bit of the SP control register. + */ + cs461x_poke(card, BA1_SPCR, SPCR_RSTSP); + + /* + * Write the control register. + */ + cs461x_poke(card, BA1_SPCR, SPCR_DRQEN); + + /* + * Clear the trap registers. + */ + for (idx = 0; idx < 8; idx++) { + cs461x_poke(card, BA1_DREG, DREG_REGID_TRAP_SELECT + idx); + cs461x_poke(card, BA1_TWPR, 0xFFFF); + } + cs461x_poke(card, BA1_DREG, 0); + + /* + * Set the frame timer to reflect the number of cycles per frame. + */ + cs461x_poke(card, BA1_FRMT, 0xadf); +} + +static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type) +{ + int idx, loop, startfifo=0, endfifo=0, powerdown1 = 0; + unsigned int tmp; + + /* + * See if the devices are powered down. If so, we must power them up first + * or they will not respond. + */ + if (!((tmp = cs461x_peekBA0(card, BA0_CLKCR1)) & CLKCR1_SWCE)) { + cs461x_pokeBA0(card, BA0_CLKCR1, tmp | CLKCR1_SWCE); + powerdown1 = 1; + } + + /* + * We want to clear out the serial port FIFOs so we don't end up playing + * whatever random garbage happens to be in them. We fill the sample FIFOS + * with zero (silence). + */ + cs461x_pokeBA0(card, BA0_SERBWP, 0); + + /* + * Check for which FIFO locations to clear, if we are currently + * playing or capturing then we don't want to put in 128 bytes of + * "noise". + */ + if(type & CS_TYPE_DAC) + { + startfifo = 128; + endfifo = 256; + } + if(type & CS_TYPE_ADC) + { + startfifo = 0; + if(!endfifo) + endfifo = 128; + } + /* + * Fill sample FIFO locations (256 locations total). + */ + for (idx = startfifo; idx < endfifo; idx++) { + /* + * Make sure the previous FIFO write operation has completed. + */ + for (loop = 0; loop < 5; loop++) { + udelay(50); + if (!(cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY)) + break; + } + if (cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY) { + if (powerdown1) + cs461x_pokeBA0(card, BA0_CLKCR1, tmp); + } + /* + * Write the serial port FIFO index. + */ + cs461x_pokeBA0(card, BA0_SERBAD, idx); + /* + * Tell the serial port to load the new value into the FIFO location. + */ + cs461x_pokeBA0(card, BA0_SERBCM, SERBCM_WRC); + } + /* + * Now, if we powered up the devices, then power them back down again. + * This is kinda ugly, but should never happen. + */ + if (powerdown1) + cs461x_pokeBA0(card, BA0_CLKCR1, tmp); +} + + +static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag) +{ + int count; + unsigned int tmp=0,muted=0; + + CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO + "cs46xx: cs461x_powerdown()+ type=0x%x\n",type)); + if(!cs_powerdown && !suspendflag) + { + CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO + "cs46xx: cs461x_powerdown() DISABLED exiting\n")); + return 0; + } + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO + "cs46xx: cs461x_powerdown() powerdown reg=0x%x\n",tmp)); +/* +* if powering down only the VREF, and not powering down the DAC/ADC, +* then do not power down the VREF, UNLESS both the DAC and ADC are not +* currently powered down. If powering down DAC and ADC, then +* it is possible to power down the VREF (ON). +*/ + if ( ((type & CS_POWER_MIXVON) && + (!(type & CS_POWER_ADC) || (!(type & CS_POWER_DAC))) ) + && + ((tmp & CS_AC97_POWER_CONTROL_ADC_ON) || + (tmp & CS_AC97_POWER_CONTROL_DAC_ON) ) ) + { + CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO + "cs46xx: cs461x_powerdown()- 0 unable to powerdown. tmp=0x%x\n",tmp)); + return 0; + } +/* +* for now, always keep power to the mixer block. +* not sure why it's a problem but it seems to be if we power off. +*/ + type &= ~CS_POWER_MIXVON; + type &= ~CS_POWER_MIXVOFF; + + /* + * Power down indicated areas. + */ + if(type & CS_POWER_MIXVOFF) + { + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVOFF\n")); + /* + * Power down the MIXER (VREF ON) on the AC97 card. + */ + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp |= CS_AC97_POWER_CONTROL_MIXVOFF; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVOFF_ON)) + break; + } + + /* + * Check the status.. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVOFF_ON) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerdown MIXVOFF failed\n")); + return 1; + } + } + } + if(type & CS_POWER_MIXVON) + { + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVON\n")); + /* + * Power down the MIXER (VREF ON) on the AC97 card. + */ + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (tmp & CS_AC97_POWER_CONTROL_MIXVON_ON) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp |= CS_AC97_POWER_CONTROL_MIXVON; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVON_ON)) + break; + } + + /* + * Check the status.. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVON_ON) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerdown MIXVON failed\n")); + return 1; + } + } + } + if(type & CS_POWER_ADC) + { + /* + * Power down the ADC on the AC97 card. + */ + CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs461x_powerdown()+ ADC\n")); + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (tmp & CS_AC97_POWER_CONTROL_ADC_ON) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp |= CS_AC97_POWER_CONTROL_ADC; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_ADC_ON)) + break; + } + + /* + * Check the status.. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_ADC_ON) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerdown ADC failed\n")); + return 1; + } + } + } + if(type & CS_POWER_DAC) + { + /* + * Power down the DAC on the AC97 card. + */ + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs461x_powerdown()+ DAC\n")); + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (tmp & CS_AC97_POWER_CONTROL_DAC_ON) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp |= CS_AC97_POWER_CONTROL_DAC; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_DAC_ON)) + break; + } + + /* + * Check the status.. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_DAC_ON) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerdown DAC failed\n")); + return 1; + } + } + } + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if(muted) + cs_mute(card, CS_FALSE); + CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO + "cs46xx: cs461x_powerdown()- 0 tmp=0x%x\n",tmp)); + return 0; +} + +static int cs46xx_powerup(struct cs_card *card, unsigned int type) +{ + int count; + unsigned int tmp=0,muted=0; + + CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO + "cs46xx: cs46xx_powerup()+ type=0x%x\n",type)); + /* + * check for VREF and powerup if need to. + */ + if(type & CS_POWER_MIXVON) + type |= CS_POWER_MIXVOFF; + if(type & (CS_POWER_DAC | CS_POWER_ADC)) + type |= CS_POWER_MIXVON | CS_POWER_MIXVOFF; + + /* + * Power up indicated areas. + */ + if(type & CS_POWER_MIXVOFF) + { + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVOFF\n")); + /* + * Power up the MIXER (VREF ON) on the AC97 card. + */ + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (!(tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON)) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp &= ~CS_AC97_POWER_CONTROL_MIXVOFF; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVOFF_ON) + break; + } + + /* + * Check the status.. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVOFF_ON)) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerup MIXVOFF failed\n")); + return 1; + } + } + } + if(type & CS_POWER_MIXVON) + { + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVON\n")); + /* + * Power up the MIXER (VREF ON) on the AC97 card. + */ + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (!(tmp & CS_AC97_POWER_CONTROL_MIXVON_ON)) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp &= ~CS_AC97_POWER_CONTROL_MIXVON; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVON_ON) + break; + } + + /* + * Check the status.. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_MIXVON_ON)) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerup MIXVON failed\n")); + return 1; + } + } + } + if(type & CS_POWER_ADC) + { + /* + * Power up the ADC on the AC97 card. + */ + CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs46xx_powerup()+ ADC\n")); + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (!(tmp & CS_AC97_POWER_CONTROL_ADC_ON)) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp &= ~CS_AC97_POWER_CONTROL_ADC; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_ADC_ON) + break; + } + + /* + * Check the status.. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_ADC_ON)) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerup ADC failed\n")); + return 1; + } + } + } + if(type & CS_POWER_DAC) + { + /* + * Power up the DAC on the AC97 card. + */ + + CS_DBGOUT(CS_FUNCTION, 4, + printk(KERN_INFO "cs46xx: cs46xx_powerup()+ DAC\n")); + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if (!(tmp & CS_AC97_POWER_CONTROL_DAC_ON)) + { + if(!muted) + { + cs_mute(card, CS_TRUE); + muted=1; + } + tmp &= ~CS_AC97_POWER_CONTROL_DAC; + cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp ); + /* + * Now, we wait until we sample a ready state. + */ + for (count = 0; count < 32; count++) { + /* + * First, lets wait a short while to let things settle out a + * bit, and to prevent retrying the read too quickly. + */ + udelay(500); + + /* + * Read the current state of the power control register. + */ + if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_DAC_ON) + break; + } + + /* + * Check the status.. + */ + if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) & + CS_AC97_POWER_CONTROL_DAC_ON)) + { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING + "cs46xx: powerup DAC failed\n")); + return 1; + } + } + } + tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL); + if(muted) + cs_mute(card, CS_FALSE); + CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO + "cs46xx: cs46xx_powerup()- 0 tmp=0x%x\n",tmp)); + return 0; +} + + +static void cs461x_proc_start(struct cs_card *card) +{ + int cnt; + + /* + * Set the frame timer to reflect the number of cycles per frame. + */ + cs461x_poke(card, BA1_FRMT, 0xadf); + /* + * Turn on the run, run at frame, and DMA enable bits in the local copy of + * the SP control register. + */ + cs461x_poke(card, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN); + /* + * Wait until the run at frame bit resets itself in the SP control + * register. + */ + for (cnt = 0; cnt < 25; cnt++) { + udelay(50); + if (!(cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR)) + break; + } + + if (cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR) + printk(KERN_WARNING "cs46xx: SPCR_RUNFR never reset\n"); +} + +static void cs461x_proc_stop(struct cs_card *card) +{ + /* + * Turn off the run, run at frame, and DMA enable bits in the local copy of + * the SP control register. + */ + cs461x_poke(card, BA1_SPCR, 0); +} + +static int cs_hardware_init(struct cs_card *card) +{ + unsigned long end_time; + unsigned int tmp,count; + + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_hardware_init()+\n") ); + /* + * First, blast the clock control register to zero so that the PLL starts + * out in a known state, and blast the master serial port control register + * to zero so that the serial ports also start out in a known state. + */ + cs461x_pokeBA0(card, BA0_CLKCR1, 0); + cs461x_pokeBA0(card, BA0_SERMC1, 0); + + /* + * If we are in AC97 mode, then we must set the part to a host controlled + * AC-link. Otherwise, we won't be able to bring up the link. + */ + cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_1_03); /* 1.03 card */ + /* cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_2_0); */ /* 2.00 card */ + + /* + * Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97 + * spec) and then drive it high. This is done for non AC97 modes since + * there might be logic external to the CS461x that uses the ARST# line + * for a reset. + */ + cs461x_pokeBA0(card, BA0_ACCTL, 1); + udelay(50); + cs461x_pokeBA0(card, BA0_ACCTL, 0); + udelay(50); + cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_RSTN); + + /* + * The first thing we do here is to enable sync generation. As soon + * as we start receiving bit clock, we'll start producing the SYNC + * signal. + */ + cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN); + + /* + * Now wait for a short while to allow the AC97 part to start + * generating bit clock (so we don't try to start the PLL without an + * input clock). + */ + mdelay(5 * cs_laptop_wait); /* 1 should be enough ?? (and pigs might fly) */ + + /* + * Set the serial port timing configuration, so that + * the clock control circuit gets its clock from the correct place. + */ + cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97); + + /* + * The part seems to not be ready for a while after a resume. + * so, if we are resuming, then wait for 700 mils. Note that 600 mils + * is not enough for some platforms! tested on an IBM Thinkpads and + * reference cards. + */ + if(!(card->pm.flags & CS46XX_PM_IDLE)) + mdelay(initdelay); + /* + * Write the selected clock control setup to the hardware. Do not turn on + * SWCE yet (if requested), so that the devices clocked by the output of + * PLL are not clocked until the PLL is stable. + */ + cs461x_pokeBA0(card, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ); + cs461x_pokeBA0(card, BA0_PLLM, 0x3a); + cs461x_pokeBA0(card, BA0_CLKCR2, CLKCR2_PDIVS_8); + + /* + * Power up the PLL. + */ + cs461x_pokeBA0(card, BA0_CLKCR1, CLKCR1_PLLP); + + /* + * Wait until the PLL has stabilized. + */ + mdelay(5 * cs_laptop_wait); /* Again 1 should be enough ?? */ + + /* + * Turn on clocking of the core so that we can setup the serial ports. + */ + tmp = cs461x_peekBA0(card, BA0_CLKCR1) | CLKCR1_SWCE; + cs461x_pokeBA0(card, BA0_CLKCR1, tmp); + + /* + * Fill the serial port FIFOs with silence. + */ + cs461x_clear_serial_FIFOs(card,CS_TYPE_DAC | CS_TYPE_ADC); + + /* + * Set the serial port FIFO pointer to the first sample in the FIFO. + */ + /* cs461x_pokeBA0(card, BA0_SERBSP, 0); */ + + /* + * Write the serial port configuration to the part. The master + * enable bit is not set until all other values have been written. + */ + cs461x_pokeBA0(card, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN); + cs461x_pokeBA0(card, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN); + cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE); + + + mdelay(5 * cs_laptop_wait); /* Shouldnt be needed ?? */ + +/* +* If we are resuming under 2.2.x then we can not schedule a timeout. +* so, just spin the CPU. +*/ + if(card->pm.flags & CS46XX_PM_IDLE) + { + /* + * Wait for the card ready signal from the AC97 card. + */ + end_time = jiffies + 3 * (HZ >> 2); + do { + /* + * Read the AC97 status register to see if we've seen a CODEC READY + * signal from the AC97 card. + */ + if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY) + break; + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout(1); + } while (time_before(jiffies, end_time)); + } + else + { + for (count = 0; count < 100; count++) { + // First, we want to wait for a short time. + udelay(25 * cs_laptop_wait); + + if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY) + break; + } + } + + /* + * Make sure CODEC is READY. + */ + if (!(cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)) { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING + "cs46xx: create - never read card ready from AC'97\n")); + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING + "cs46xx: probably not a bug, try using the CS4232 driver,\n")); + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING + "cs46xx: or turn off any automatic Power Management support in the BIOS.\n")); + return -EIO; + } + + /* + * Assert the vaid frame signal so that we can start sending commands + * to the AC97 card. + */ + cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN); + + if(card->pm.flags & CS46XX_PM_IDLE) + { + /* + * Wait until we've sampled input slots 3 and 4 as valid, meaning that + * the card is pumping ADC data across the AC-link. + */ + end_time = jiffies + 3 * (HZ >> 2); + do { + /* + * Read the input slot valid register and see if input slots 3 and + * 4 are valid yet. + */ + if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4)) + break; + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout(1); + } while (time_before(jiffies, end_time)); + } + else + { + for (count = 0; count < 100; count++) { + // First, we want to wait for a short time. + udelay(25 * cs_laptop_wait); + + if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4)) + break; + } + } + /* + * Make sure input slots 3 and 4 are valid. If not, then return + * an error. + */ + if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) != (ACISV_ISV3 | ACISV_ISV4)) { + printk(KERN_WARNING "cs46xx: create - never read ISV3 & ISV4 from AC'97\n"); + return -EIO; + } + + /* + * Now, assert valid frame and the slot 3 and 4 valid bits. This will + * commense the transfer of digital audio data to the AC97 card. + */ + cs461x_pokeBA0(card, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4); + + /* + * Turn off the Processor by turning off the software clock enable flag in + * the clock control register. + */ + /* tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; */ + /* cs461x_pokeBA0(card, BA0_CLKCR1, tmp); */ + + /* + * Reset the processor. + */ + cs461x_reset(card); + + /* + * Download the image to the processor. + */ + + cs461x_download_image(card); + + /* + * Stop playback DMA. + */ + tmp = cs461x_peek(card, BA1_PCTL); + card->pctl = tmp & 0xffff0000; + cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff); + + /* + * Stop capture DMA. + */ + tmp = cs461x_peek(card, BA1_CCTL); + card->cctl = tmp & 0x0000ffff; + cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000); + + /* initialize AC97 codec and register /dev/mixer */ + if(card->pm.flags & CS46XX_PM_IDLE) + { + if (cs_ac97_init(card) <= 0) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs_ac97_init() failure\n") ); + return -EIO; + } + } + else + { + cs46xx_ac97_resume(card); + } + + cs461x_proc_start(card); + + /* + * Enable interrupts on the part. + */ + cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM); + + tmp = cs461x_peek(card, BA1_PFIE); + tmp &= ~0x0000f03f; + cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt enable */ + + tmp = cs461x_peek(card, BA1_CIE); + tmp &= ~0x0000003f; + tmp |= 0x00000001; + cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt enable */ + + /* + * If IDLE then Power down the part. We will power components up + * when we need them. + */ + if(card->pm.flags & CS46XX_PM_IDLE) + { + if(!cs_powerdown) + { + if( (tmp = cs46xx_powerup(card, CS_POWER_DAC | CS_POWER_ADC | + CS_POWER_MIXVON )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs461x_powerup() failure (0x%x)\n",tmp) ); + return -EIO; + } + } + else + { + if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC | + CS_POWER_MIXVON, CS_FALSE )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) ); + return -EIO; + } + } + } + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO + "cs46xx: cs_hardware_init()- 0\n")); + return 0; +} + +/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered + until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ + +/* + * Card subid table + */ + +struct cs_card_type +{ + u16 vendor; + u16 id; + char *name; + void (*amp)(struct cs_card *, int); + void (*amp_init)(struct cs_card *); + void (*active)(struct cs_card *, int); +}; + +static struct cs_card_type cards[] = { + { + .vendor = 0x1489, + .id = 0x7001, + .name = "Genius Soundmaker 128 value", + .amp = amp_none, + }, + { + .vendor = 0x5053, + .id = 0x3357, + .name = "Voyetra", + .amp = amp_voyetra, + }, + { + .vendor = 0x1071, + .id = 0x6003, + .name = "Mitac MI6020/21", + .amp = amp_voyetra, + }, + { + .vendor = 0x14AF, + .id = 0x0050, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0x0050, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0x0051, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0x0052, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0x0053, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0x0054, + .name = "Hercules Game Theatre XP", + .amp = amp_hercules, + }, + { + .vendor = 0x1681, + .id = 0xa010, + .name = "Hercules Fortissimo II", + .amp = amp_none, + }, + /* Not sure if the 570 needs the clkrun hack */ + { + .vendor = PCI_VENDOR_ID_IBM, + .id = 0x0132, + .name = "Thinkpad 570", + .amp = amp_none, + .active = clkrun_hack, + }, + { + .vendor = PCI_VENDOR_ID_IBM, + .id = 0x0153, + .name = "Thinkpad 600X/A20/T20", + .amp = amp_none, + .active = clkrun_hack, + }, + { + .vendor = PCI_VENDOR_ID_IBM, + .id = 0x1010, + .name = "Thinkpad 600E (unsupported)", + }, + { + .name = "Card without SSID set", + }, + { 0, }, +}; + +MODULE_AUTHOR("Alan Cox <alan@redhat.com>, Jaroslav Kysela, <pcaudio@crystal.cirrus.com>"); +MODULE_DESCRIPTION("Crystal SoundFusion Audio Support"); +MODULE_LICENSE("GPL"); + + +static const char cs46xx_banner[] = KERN_INFO "Crystal 4280/46xx + AC97 Audio, version " CS46XX_MAJOR_VERSION "." CS46XX_MINOR_VERSION "." CS46XX_ARCH ", " __TIME__ " " __DATE__ "\n"; +static const char fndmsg[] = KERN_INFO "cs46xx: Found %d audio device(s).\n"; + +static int __devinit cs46xx_probe(struct pci_dev *pci_dev, + const struct pci_device_id *pciid) +{ + struct pm_dev *pmdev; + int i,j; + u16 ss_card, ss_vendor; + struct cs_card *card; + dma_addr_t dma_mask; + struct cs_card_type *cp = &cards[0]; + + CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, + printk(KERN_INFO "cs46xx: probe()+\n")); + + dma_mask = 0xffffffff; /* this enables playback and recording */ + if (pci_enable_device(pci_dev)) { + CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR + "cs46xx: pci_enable_device() failed\n")); + return -1; + } + if (!RSRCISMEMORYREGION(pci_dev, 0) || + !RSRCISMEMORYREGION(pci_dev, 1)) { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR + "cs46xx: probe()- Memory region not assigned\n")); + return -1; + } + if (pci_dev->irq == 0) { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR + "cs46xx: probe() IRQ not assigned\n")); + return -1; + } + if (!pci_dma_supported(pci_dev, 0xffffffff)) { + CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR + "cs46xx: probe() architecture does not support 32bit PCI busmaster DMA\n")); + return -1; + } + pci_read_config_word(pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor); + pci_read_config_word(pci_dev, PCI_SUBSYSTEM_ID, &ss_card); + + if ((card = kmalloc(sizeof(struct cs_card), GFP_KERNEL)) == NULL) { + printk(KERN_ERR "cs46xx: out of memory\n"); + return -ENOMEM; + } + memset(card, 0, sizeof(*card)); + card->ba0_addr = RSRCADDRESS(pci_dev, 0); + card->ba1_addr = RSRCADDRESS(pci_dev, 1); + card->pci_dev = pci_dev; + card->irq = pci_dev->irq; + card->magic = CS_CARD_MAGIC; + spin_lock_init(&card->lock); + spin_lock_init(&card->ac97_lock); + + pci_set_master(pci_dev); + + printk(cs46xx_banner); + printk(KERN_INFO "cs46xx: Card found at 0x%08lx and 0x%08lx, IRQ %d\n", + card->ba0_addr, card->ba1_addr, card->irq); + + card->alloc_pcm_channel = cs_alloc_pcm_channel; + card->alloc_rec_pcm_channel = cs_alloc_rec_pcm_channel; + card->free_pcm_channel = cs_free_pcm_channel; + card->amplifier_ctrl = amp_none; + card->active_ctrl = amp_none; + + while (cp->name) + { + if(cp->vendor == ss_vendor && cp->id == ss_card) + { + card->amplifier_ctrl = cp->amp; + if(cp->active) + card->active_ctrl = cp->active; + if(cp->amp_init) + card->amp_init = cp->amp_init; + break; + } + cp++; + } + if (cp->name==NULL) + { + printk(KERN_INFO "cs46xx: Unknown card (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n", + ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq); + } + else + { + printk(KERN_INFO "cs46xx: %s (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n", + cp->name, ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq); + } + + if (card->amplifier_ctrl==NULL) + { + card->amplifier_ctrl = amp_none; + card->active_ctrl = clkrun_hack; + } + + if (external_amp == 1) + { + printk(KERN_INFO "cs46xx: Crystal EAPD support forced on.\n"); + card->amplifier_ctrl = amp_voyetra; + } + + if (thinkpad == 1) + { + printk(KERN_INFO "cs46xx: Activating CLKRUN hack for Thinkpad.\n"); + card->active_ctrl = clkrun_hack; + } +/* +* The thinkpads don't work well without runtime updating on their kernel +* delay values (or any laptop with variable CPU speeds really). +* so, just to be safe set the init delay to 2100. Eliminates +* failures on T21 Thinkpads. remove this code when the udelay +* and mdelay kernel code is replaced by a pm timer, or the delays +* work well for battery and/or AC power both. +*/ + if(card->active_ctrl == clkrun_hack) + { + initdelay = 2100; + cs_laptop_wait = 5; + } + if((card->active_ctrl == clkrun_hack) && !(powerdown == 1)) + { +/* +* for some currently unknown reason, powering down the DAC and ADC component +* blocks on thinkpads causes some funky behavior... distoorrrtion and ac97 +* codec access problems. probably the serial clock becomes unsynced. +* added code to sync the chips back up, but only helped about 70% the time. +*/ + cs_powerdown = 0; + } + if(powerdown == 0) + cs_powerdown = 0; + card->active_ctrl(card, 1); + + /* claim our iospace and irq */ + + card->ba0 = ioremap_nocache(card->ba0_addr, CS461X_BA0_SIZE); + card->ba1.name.data0 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM0, CS461X_BA1_DATA0_SIZE); + card->ba1.name.data1 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM1, CS461X_BA1_DATA1_SIZE); + card->ba1.name.pmem = ioremap_nocache(card->ba1_addr + BA1_SP_PMEM, CS461X_BA1_PRG_SIZE); + card->ba1.name.reg = ioremap_nocache(card->ba1_addr + BA1_SP_REG, CS461X_BA1_REG_SIZE); + + CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO + "cs46xx: card=%p card->ba0=%p\n",card,card->ba0) ); + CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO + "cs46xx: card->ba1=%p %p %p %p\n", + card->ba1.name.data0, + card->ba1.name.data1, + card->ba1.name.pmem, + card->ba1.name.reg) ); + + if(card->ba0 == 0 || card->ba1.name.data0 == 0 || + card->ba1.name.data1 == 0 || card->ba1.name.pmem == 0 || + card->ba1.name.reg == 0) + goto fail2; + + if (request_irq(card->irq, &cs_interrupt, SA_SHIRQ, "cs46xx", card)) { + printk(KERN_ERR "cs46xx: unable to allocate irq %d\n", card->irq); + goto fail2; + } + /* register /dev/dsp */ + if ((card->dev_audio = register_sound_dsp(&cs461x_fops, -1)) < 0) { + printk(KERN_ERR "cs46xx: unable to register dsp\n"); + goto fail; + } + + /* register /dev/midi */ + if((card->dev_midi = register_sound_midi(&cs_midi_fops, -1)) < 0) + printk(KERN_ERR "cs46xx: unable to register midi\n"); + + card->pm.flags |= CS46XX_PM_IDLE; + for(i=0;i<5;i++) + { + if (cs_hardware_init(card) != 0) + { + CS_DBGOUT(CS_ERROR, 4, printk( + "cs46xx: ERROR in cs_hardware_init()... retrying\n")); + for (j = 0; j < NR_AC97; j++) + if (card->ac97_codec[j] != NULL) { + unregister_sound_mixer(card->ac97_codec[j]->dev_mixer); + ac97_release_codec(card->ac97_codec[j]); + } + mdelay(10 * cs_laptop_wait); + continue; + } + break; + } + if(i>=4) + { + CS_DBGOUT(CS_PM | CS_ERROR, 1, printk( + "cs46xx: cs46xx_probe()- cs_hardware_init() failed, retried %d times.\n",i)); + unregister_sound_dsp(card->dev_audio); + if(card->dev_midi) + unregister_sound_midi(card->dev_midi); + goto fail; + } + + init_waitqueue_head(&card->midi.open_wait); + init_MUTEX(&card->midi.open_sem); + init_waitqueue_head(&card->midi.iwait); + init_waitqueue_head(&card->midi.owait); + cs461x_pokeBA0(card, BA0_MIDCR, MIDCR_MRST); + cs461x_pokeBA0(card, BA0_MIDCR, 0); + + /* + * Check if we have to init the amplifier, but probably already done + * since the CD logic in the ac97 init code will turn on the ext amp. + */ + if(cp->amp_init) + cp->amp_init(card); + card->active_ctrl(card, -1); + + PCI_SET_DRIVER_DATA(pci_dev, card); + PCI_SET_DMA_MASK(pci_dev, dma_mask); + list_add(&card->list, &cs46xx_devs); + + pmdev = cs_pm_register(PM_PCI_DEV, PM_PCI_ID(pci_dev), cs46xx_pm_callback); + if (pmdev) + { + CS_DBGOUT(CS_INIT | CS_PM, 4, printk(KERN_INFO + "cs46xx: probe() pm_register() succeeded (%p).\n", + pmdev)); + pmdev->data = card; + } + else + { + CS_DBGOUT(CS_INIT | CS_PM | CS_ERROR, 2, printk(KERN_INFO + "cs46xx: probe() pm_register() failed (%p).\n", + pmdev)); + card->pm.flags |= CS46XX_PM_NOT_REGISTERED; + } + + CS_DBGOUT(CS_PM, 9, printk(KERN_INFO "cs46xx: pm.flags=0x%x card=%p\n", + (unsigned)card->pm.flags,card)); + + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO + "cs46xx: probe()- device allocated successfully\n")); + return 0; + +fail: + free_irq(card->irq, card); +fail2: + if(card->ba0) + iounmap(card->ba0); + if(card->ba1.name.data0) + iounmap(card->ba1.name.data0); + if(card->ba1.name.data1) + iounmap(card->ba1.name.data1); + if(card->ba1.name.pmem) + iounmap(card->ba1.name.pmem); + if(card->ba1.name.reg) + iounmap(card->ba1.name.reg); + kfree(card); + CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO + "cs46xx: probe()- no device allocated\n")); + return -ENODEV; +} // probe_cs46xx + +// --------------------------------------------------------------------- + +static void __devexit cs46xx_remove(struct pci_dev *pci_dev) +{ + struct cs_card *card = PCI_GET_DRIVER_DATA(pci_dev); + int i; + unsigned int tmp; + + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO + "cs46xx: cs46xx_remove()+\n")); + + card->active_ctrl(card,1); + + tmp = cs461x_peek(card, BA1_PFIE); + tmp &= ~0x0000f03f; + tmp |= 0x00000010; + cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */ + + tmp = cs461x_peek(card, BA1_CIE); + tmp &= ~0x0000003f; + tmp |= 0x00000011; + cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */ + + /* + * Stop playback DMA. + */ + tmp = cs461x_peek(card, BA1_PCTL); + cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff); + + /* + * Stop capture DMA. + */ + tmp = cs461x_peek(card, BA1_CCTL); + cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000); + + /* + * Reset the processor. + */ + cs461x_reset(card); + + cs461x_proc_stop(card); + + /* + * Power down the DAC and ADC. We will power them up (if) when we need + * them. + */ + if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC | + CS_POWER_MIXVON, CS_TRUE )) ) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO + "cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) ); + } + + /* + * Power down the PLL. + */ + cs461x_pokeBA0(card, BA0_CLKCR1, 0); + + /* + * Turn off the Processor by turning off the software clock enable flag in + * the clock control register. + */ + tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; + cs461x_pokeBA0(card, BA0_CLKCR1, tmp); + + card->active_ctrl(card,-1); + + /* free hardware resources */ + free_irq(card->irq, card); + iounmap(card->ba0); + iounmap(card->ba1.name.data0); + iounmap(card->ba1.name.data1); + iounmap(card->ba1.name.pmem); + iounmap(card->ba1.name.reg); + + /* unregister audio devices */ + for (i = 0; i < NR_AC97; i++) + if (card->ac97_codec[i] != NULL) { + unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); + ac97_release_codec(card->ac97_codec[i]); + } + unregister_sound_dsp(card->dev_audio); + if(card->dev_midi) + unregister_sound_midi(card->dev_midi); + list_del(&card->list); + kfree(card); + PCI_SET_DRIVER_DATA(pci_dev,NULL); + + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO + "cs46xx: cs46xx_remove()-: remove successful\n")); +} + +enum { + CS46XX_4610 = 0, + CS46XX_4612, /* same as 4630 */ + CS46XX_4615, /* same as 4624 */ +}; + +static struct pci_device_id cs46xx_pci_tbl[] = { + { + .vendor = PCI_VENDOR_ID_CIRRUS, + .device = PCI_DEVICE_ID_CIRRUS_4610, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = CS46XX_4610, + }, + { + .vendor = PCI_VENDOR_ID_CIRRUS, + .device = PCI_DEVICE_ID_CIRRUS_4612, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = CS46XX_4612, + }, + { + .vendor = PCI_VENDOR_ID_CIRRUS, + .device = PCI_DEVICE_ID_CIRRUS_4615, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = CS46XX_4615, + }, + { 0, }, +}; + +MODULE_DEVICE_TABLE(pci, cs46xx_pci_tbl); + +static struct pci_driver cs46xx_pci_driver = { + .name = "cs46xx", + .id_table = cs46xx_pci_tbl, + .probe = cs46xx_probe, + .remove = __devexit_p(cs46xx_remove), + .suspend = CS46XX_SUSPEND_TBL, + .resume = CS46XX_RESUME_TBL, +}; + +static int __init cs46xx_init_module(void) +{ + int rtn = 0; + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO + "cs46xx: cs46xx_init_module()+ \n")); + rtn = pci_module_init(&cs46xx_pci_driver); + + if(rtn == -ENODEV) + { + CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk( + "cs46xx: Unable to detect valid cs46xx device\n")); + } + + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, + printk(KERN_INFO "cs46xx: cs46xx_init_module()- (%d)\n",rtn)); + return rtn; +} + +static void __exit cs46xx_cleanup_module(void) +{ + pci_unregister_driver(&cs46xx_pci_driver); + cs_pm_unregister_all(cs46xx_pm_callback); + CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, + printk(KERN_INFO "cs46xx: cleanup_cs46xx() finished\n")); +} + +module_init(cs46xx_init_module); +module_exit(cs46xx_cleanup_module); + +#ifndef CS46XX_ACPI_SUPPORT +static int cs46xx_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data) +{ + struct cs_card *card; + + CS_DBGOUT(CS_PM, 2, printk(KERN_INFO + "cs46xx: cs46xx_pm_callback dev=%p rqst=0x%x card=%p\n", + dev,(unsigned)rqst,data)); + card = (struct cs_card *) dev->data; + if (card) { + switch(rqst) { + case PM_SUSPEND: + CS_DBGOUT(CS_PM, 2, printk(KERN_INFO + "cs46xx: PM suspend request\n")); + if(cs46xx_suspend(card, 0)) + { + CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO + "cs46xx: PM suspend request refused\n")); + return 1; + } + break; + case PM_RESUME: + CS_DBGOUT(CS_PM, 2, printk(KERN_INFO + "cs46xx: PM resume request\n")); + if(cs46xx_resume(card)) + { + CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO + "cs46xx: PM resume request refused\n")); + return 1; + } + break; + } + } + + return 0; +} +#endif + +#if CS46XX_ACPI_SUPPORT +static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state) +{ + struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev); + CS_DBGOUT(CS_PM | CS_FUNCTION, 2, + printk(KERN_INFO "cs46xx: cs46xx_suspend_tbl request\n")); + cs46xx_suspend(s, 0); + return 0; +} + +static int cs46xx_resume_tbl(struct pci_dev *pcidev) +{ + struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev); + CS_DBGOUT(CS_PM | CS_FUNCTION, 2, + printk(KERN_INFO "cs46xx: cs46xx_resume_tbl request\n")); + cs46xx_resume(s); + return 0; +} +#endif |