diff options
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 129 |
1 files changed, 68 insertions, 61 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index eddb6daadf4..4726126f5a5 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -139,6 +139,12 @@ struct ide_io_ports { #define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */ /* + * Op codes for special requests to be handled by ide_special_rq(). + * Values should be in the range of 0x20 to 0x3f. + */ +#define REQ_DRIVE_RESET 0x20 + +/* * Check for an interrupt and acknowledge the interrupt status */ struct hwif_s; @@ -171,7 +177,7 @@ typedef struct hw_regs_s { int irq; /* our irq number */ ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ hwif_chipset_t chipset; - struct device *dev; + struct device *dev, *parent; } hw_regs_t; void ide_init_port_data(struct hwif_s *, unsigned int); @@ -364,7 +370,6 @@ typedef struct ide_drive_s { u8 wcache; /* status of write cache */ u8 acoustic; /* acoustic management */ u8 media; /* disk, cdrom, tape, floppy, ... */ - u8 ctl; /* "normal" value for Control register */ u8 ready_stat; /* min status value for drive ready */ u8 mult_count; /* current multiple sector setting */ u8 mult_req; /* requested multiple sector setting */ @@ -406,8 +411,8 @@ typedef struct ide_drive_s { struct ide_port_info; struct ide_port_ops { - /* host specific initialization of devices on a port */ - void (*port_init_devs)(struct hwif_s *); + /* host specific initialization of a device */ + void (*init_dev)(ide_drive_t *); /* routine to program host for PIO mode */ void (*set_pio_mode)(ide_drive_t *, const u8); /* routine to program host for DMA mode */ @@ -493,7 +498,7 @@ typedef struct hwif_s { void (*ide_dma_clear_irq)(ide_drive_t *drive); void (*OUTB)(u8 addr, unsigned long port); - void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port); + void (*OUTBSYNC)(struct hwif_s *hwif, u8 addr, unsigned long port); u8 (*INB)(unsigned long port); @@ -532,7 +537,6 @@ typedef struct hwif_s { unsigned serialized : 1; /* serialized all channel operation */ unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ - unsigned mmio : 1; /* host uses MMIO */ struct device gendev; struct device *portdev; @@ -567,8 +571,6 @@ typedef struct hwgroup_s { unsigned int sleeping : 1; /* BOOL: polling active & poll_timeout field valid */ unsigned int polling : 1; - /* BOOL: in a polling reset situation. Must not trigger another reset yet */ - unsigned int resetting : 1; /* current drive */ ide_drive_t *drive; @@ -604,12 +606,13 @@ enum { PC_FLAG_SUPPRESS_ERROR = (1 << 1), PC_FLAG_WAIT_FOR_DSC = (1 << 2), PC_FLAG_DMA_OK = (1 << 3), - PC_FLAG_DMA_RECOMMENDED = (1 << 4), - PC_FLAG_DMA_IN_PROGRESS = (1 << 5), - PC_FLAG_DMA_ERROR = (1 << 6), - PC_FLAG_WRITING = (1 << 7), + PC_FLAG_DMA_IN_PROGRESS = (1 << 4), + PC_FLAG_DMA_ERROR = (1 << 5), + PC_FLAG_WRITING = (1 << 6), /* command timed out */ - PC_FLAG_TIMEDOUT = (1 << 8), + PC_FLAG_TIMEDOUT = (1 << 7), + PC_FLAG_ZIP_DRIVE = (1 << 8), + PC_FLAG_DRQ_INTERRUPT = (1 << 9), }; struct ide_atapi_pc { @@ -642,8 +645,8 @@ struct ide_atapi_pc { * to change/removal later. */ u8 pc_buf[256]; - void (*idefloppy_callback) (ide_drive_t *); - ide_startstop_t (*idetape_callback) (ide_drive_t *); + + void (*callback)(ide_drive_t *); /* idetape only */ struct idetape_bh *bh; @@ -787,7 +790,6 @@ struct ide_driver_s { ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); int (*end_request)(ide_drive_t *, int, int); ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); - ide_startstop_t (*abort)(ide_drive_t *, struct request *rq); struct device_driver gen_driver; int (*probe)(ide_drive_t *); void (*remove)(ide_drive_t *); @@ -802,22 +804,6 @@ struct ide_driver_s { int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long); -/* - * ide_hwifs[] is the master data structure used to keep track - * of just about everything in ide.c. Whenever possible, routines - * should be using pointers to a drive (ide_drive_t *) or - * pointers to a hwif (ide_hwif_t *), rather than indexing this - * structure directly (the allocation/layout may change!). - * - */ -#ifndef _IDE_C -extern ide_hwif_t ide_hwifs[]; /* master data repository */ -#endif -extern int ide_noacpi; -extern int ide_acpigtf; -extern int ide_acpionboot; -extern int noautodma; - extern int ide_vlb_clk; extern int ide_pci_clk; @@ -845,10 +831,6 @@ ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); -ide_startstop_t __ide_abort(ide_drive_t *, struct request *); - -extern ide_startstop_t ide_abort(ide_drive_t *, const char *); - extern void ide_fix_driveid(struct hd_driveid *); extern void ide_fixstring(u8 *, const int, const int); @@ -857,25 +839,12 @@ int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); extern ide_startstop_t ide_do_reset (ide_drive_t *); -extern void ide_init_drive_cmd (struct request *rq); - -/* - * "action" parameter type for ide_do_drive_cmd() below. - */ -typedef enum { - ide_wait, /* insert rq at end of list, and wait for it */ - ide_preempt, /* insert rq in front of current request */ - ide_head_wait, /* insert rq in front of current request and wait for it */ - ide_end /* insert rq at end of list, but don't wait for it */ -} ide_action_t; - -extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t); +extern void ide_do_drive_cmd(ide_drive_t *, struct request *); extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); enum { IDE_TFLAG_LBA48 = (1 << 0), - IDE_TFLAG_NO_SELECT_MASK = (1 << 1), IDE_TFLAG_FLAGGED = (1 << 2), IDE_TFLAG_OUT_DATA = (1 << 3), IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), @@ -980,11 +949,23 @@ typedef struct ide_task_s { void ide_tf_dump(const char *, struct ide_taskfile *); extern void SELECT_DRIVE(ide_drive_t *); +void SELECT_MASK(ide_drive_t *, int); extern int drive_is_ready(ide_drive_t *); void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); +ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, + void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), + void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), + void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int, + int)); +ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *, + ide_handler_t *, unsigned int, ide_expiry_t *); +ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *, + ide_handler_t *, unsigned int, ide_expiry_t *); + ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); void task_end_request(ide_drive_t *, struct request *, u8); @@ -996,8 +977,6 @@ int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long); int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long); -extern int system_bus_clock(void); - extern int ide_driveid_update(ide_drive_t *); extern int ide_config_drive_speed(ide_drive_t *, u8); extern u8 eighty_ninty_three (ide_drive_t *); @@ -1279,16 +1258,43 @@ static inline int ide_dev_is_sata(struct hd_driveid *id) u64 ide_get_lba_addr(struct ide_taskfile *, int); u8 ide_dump_status(ide_drive_t *, const char *, u8); -typedef struct ide_pio_timings_s { - int setup_time; /* Address setup (ns) minimum */ - int active_time; /* Active pulse (ns) minimum */ - int cycle_time; /* Cycle time (ns) minimum = */ - /* active + recovery (+ setup for some chips) */ -} ide_pio_timings_t; +struct ide_timing { + u8 mode; + u8 setup; /* t1 */ + u16 act8b; /* t2 for 8-bit io */ + u16 rec8b; /* t2i for 8-bit io */ + u16 cyc8b; /* t0 for 8-bit io */ + u16 active; /* t2 or tD */ + u16 recover; /* t2i or tK */ + u16 cycle; /* t0 */ + u16 udma; /* t2CYCTYP/2 */ +}; + +enum { + IDE_TIMING_SETUP = (1 << 0), + IDE_TIMING_ACT8B = (1 << 1), + IDE_TIMING_REC8B = (1 << 2), + IDE_TIMING_CYC8B = (1 << 3), + IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | + IDE_TIMING_CYC8B, + IDE_TIMING_ACTIVE = (1 << 4), + IDE_TIMING_RECOVER = (1 << 5), + IDE_TIMING_CYCLE = (1 << 6), + IDE_TIMING_UDMA = (1 << 7), + IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | + IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | + IDE_TIMING_CYCLE | IDE_TIMING_UDMA, +}; + +struct ide_timing *ide_timing_find_mode(u8); +u16 ide_pio_cycle_time(ide_drive_t *, u8); +void ide_timing_merge(struct ide_timing *, struct ide_timing *, + struct ide_timing *, unsigned int); +int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); + +int ide_scan_pio_blacklist(char *); -unsigned int ide_pio_cycle_time(ide_drive_t *, u8); u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); -extern const ide_pio_timings_t ide_pio_timings[6]; int ide_set_pio_mode(ide_drive_t *, u8); int ide_set_dma_mode(ide_drive_t *, u8); @@ -1349,7 +1355,8 @@ static inline void ide_set_irq(ide_drive_t *drive, int on) { ide_hwif_t *hwif = drive->hwif; - hwif->OUTB(drive->ctl | (on ? 0 : 2), hwif->io_ports.ctl_addr); + hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2), + hwif->io_ports.ctl_addr); } static inline u8 ide_read_status(ide_drive_t *drive) |