diff options
| -rw-r--r-- | drivers/ide/ide-taskfile.c | 105 | ||||
| -rw-r--r-- | include/linux/ide.h | 211 |
2 files changed, 131 insertions, 185 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 8da8d26db7ed..a4c2d91179b3 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -53,9 +53,6 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf) } static ide_startstop_t task_no_data_intr(ide_drive_t *); -static ide_startstop_t set_geometry_intr(ide_drive_t *); -static ide_startstop_t recal_intr(ide_drive_t *); -static ide_startstop_t set_multmode_intr(ide_drive_t *); static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); static ide_startstop_t task_in_intr(ide_drive_t *); @@ -79,6 +76,8 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) task->tf_flags |= IDE_TFLAG_FLAGGED_SET_IN_FLAGS; + memcpy(&hwif->task, task, sizeof(*task)); + if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); tp_ops->set_irq(hwif, 1); @@ -99,19 +98,6 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) case TASKFILE_NO_DATA: if (handler == NULL) handler = task_no_data_intr; - if (task->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) { - switch (tf->command) { - case ATA_CMD_INIT_DEV_PARAMS: - handler = set_geometry_intr; - break; - case ATA_CMD_RESTORE: - handler = recal_intr; - break; - case ATA_CMD_SET_MULTI: - handler = set_multmode_intr; - break; - } - } ide_execute_command(drive, tf->command, handler, WAIT_WORSTCASE, NULL); return ide_started; @@ -127,33 +113,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) EXPORT_SYMBOL_GPL(do_rw_taskfile); /* - * set_multmode_intr() is invoked on completion of a ATA_CMD_SET_MULTI cmd. - */ -static ide_startstop_t set_multmode_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 stat; - - local_irq_enable_in_hardirq(); - stat = hwif->tp_ops->read_status(hwif); - - if (OK_STAT(stat, ATA_DRDY, BAD_STAT)) - drive->mult_count = drive->mult_req; - else { - drive->mult_req = drive->mult_count = 0; - drive->special.b.recalibrate = 1; - (void) ide_dump_status(drive, "set_multmode", stat); - } - return ide_stopped; -} - -/* - * set_geometry_intr() is invoked on completion of a ATA_CMD_INIT_DEV_PARAMS cmd. + * Handler for commands without a data phase */ -static ide_startstop_t set_geometry_intr(ide_drive_t *drive) +static ide_startstop_t task_no_data_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - int retries = 5; + ide_task_t *task = &hwif->task; + struct ide_taskfile *tf = &task->tf; + int custom = (task->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0; + int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1; u8 stat; local_irq_enable_in_hardirq(); @@ -165,50 +133,27 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) udelay(10); }; - if (OK_STAT(stat, ATA_DRDY, BAD_STAT)) - return ide_stopped; - - if (stat & (ATA_ERR | ATA_DRQ)) - return ide_error(drive, "set_geometry_intr", stat); - - ide_set_handler(drive, &set_geometry_intr, WAIT_WORSTCASE, NULL); - return ide_started; -} - -/* - * recal_intr() is invoked on completion of a ATA_CMD_RESTORE (recalibrate) cmd. - */ -static ide_startstop_t recal_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 stat; - - local_irq_enable_in_hardirq(); - stat = hwif->tp_ops->read_status(hwif); - - if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) - return ide_error(drive, "recal_intr", stat); - return ide_stopped; -} - -/* - * Handler for commands without a data phase - */ -static ide_startstop_t task_no_data_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_task_t *args = hwif->hwgroup->rq->special; - u8 stat; - - local_irq_enable_in_hardirq(); - stat = hwif->tp_ops->read_status(hwif); - - if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) + if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) { + if (custom && tf->command == ATA_CMD_SET_MULTI) { + drive->mult_req = drive->mult_count = 0; + drive->special.b.recalibrate = 1; + (void)ide_dump_status(drive, __func__, stat); + return ide_stopped; + } else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) { + if ((stat & (ATA_ERR | ATA_DRQ)) == 0) { + ide_set_handler(drive, &task_no_data_intr, + WAIT_WORSTCASE, NULL); + return ide_started; + } + } return ide_error(drive, "task_no_data_intr", stat); /* calls ide_end_drive_cmd */ + } - if (args) + if (!custom) ide_end_drive_cmd(drive, stat, ide_read_error(drive)); + else if (tf->command == ATA_CMD_SET_MULTI) + drive->mult_count = drive->mult_req; return ide_stopped; } diff --git a/include/linux/ide.h b/include/linux/ide.h index a5e1888b1dab..14d489c2e5a9 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -282,6 +282,110 @@ typedef enum { ide_started, /* a drive operation was started, handler was set */ } ide_startstop_t; +enum { + IDE_TFLAG_LBA48 = (1 << 0), + IDE_TFLAG_FLAGGED = (1 << 2), + IDE_TFLAG_OUT_DATA = (1 << 3), + IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), + IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), + IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), + IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), + IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), + IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | + IDE_TFLAG_OUT_HOB_NSECT | + IDE_TFLAG_OUT_HOB_LBAL | + IDE_TFLAG_OUT_HOB_LBAM | + IDE_TFLAG_OUT_HOB_LBAH, + IDE_TFLAG_OUT_FEATURE = (1 << 9), + IDE_TFLAG_OUT_NSECT = (1 << 10), + IDE_TFLAG_OUT_LBAL = (1 << 11), + IDE_TFLAG_OUT_LBAM = (1 << 12), + IDE_TFLAG_OUT_LBAH = (1 << 13), + IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | + IDE_TFLAG_OUT_NSECT | + IDE_TFLAG_OUT_LBAL | + IDE_TFLAG_OUT_LBAM | + IDE_TFLAG_OUT_LBAH, + IDE_TFLAG_OUT_DEVICE = (1 << 14), + IDE_TFLAG_WRITE = (1 << 15), + IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), + IDE_TFLAG_IN_DATA = (1 << 17), + IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), + IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), + IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), + IDE_TFLAG_IN_HOB_NSECT = (1 << 21), + IDE_TFLAG_IN_HOB_LBAL = (1 << 22), + IDE_TFLAG_IN_HOB_LBAM = (1 << 23), + IDE_TFLAG_IN_HOB_LBAH = (1 << 24), + IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | + IDE_TFLAG_IN_HOB_LBAM | + IDE_TFLAG_IN_HOB_LBAH, + IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | + IDE_TFLAG_IN_HOB_NSECT | + IDE_TFLAG_IN_HOB_LBA, + IDE_TFLAG_IN_FEATURE = (1 << 1), + IDE_TFLAG_IN_NSECT = (1 << 25), + IDE_TFLAG_IN_LBAL = (1 << 26), + IDE_TFLAG_IN_LBAM = (1 << 27), + IDE_TFLAG_IN_LBAH = (1 << 28), + IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | + IDE_TFLAG_IN_LBAM | + IDE_TFLAG_IN_LBAH, + IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | + IDE_TFLAG_IN_LBA, + IDE_TFLAG_IN_DEVICE = (1 << 29), + IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | + IDE_TFLAG_IN_HOB, + IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | + IDE_TFLAG_IN_TF, + IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | + IDE_TFLAG_IN_DEVICE, + /* force 16-bit I/O operations */ + IDE_TFLAG_IO_16BIT = (1 << 30), + /* ide_task_t was allocated using kmalloc() */ + IDE_TFLAG_DYN = (1 << 31), +}; + +struct ide_taskfile { + u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ + + u8 hob_feature; /* 1-5: additional data to support LBA48 */ + u8 hob_nsect; + u8 hob_lbal; + u8 hob_lbam; + u8 hob_lbah; + + u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ + + union { /* 7: */ + u8 error; /* read: error */ + u8 feature; /* write: feature */ + }; + + u8 nsect; /* 8: number of sectors */ + u8 lbal; /* 9: LBA low */ + u8 lbam; /* 10: LBA mid */ + u8 lbah; /* 11: LBA high */ + + u8 device; /* 12: device select */ + + union { /* 13: */ + u8 status; /* read: status */ + u8 command; /* write: command */ + }; +}; + +typedef struct ide_task_s { + union { + struct ide_taskfile tf; + u8 tf_array[14]; + }; + u32 tf_flags; + int data_phase; + struct request *rq; /* copy of request */ + void *special; /* valid_t generally */ +} ide_task_t; + /* ATAPI packet command flags */ enum { /* set when an error is considered normal - no retry (ide-tape) */ @@ -567,7 +671,6 @@ typedef struct ide_drive_s ide_drive_t; #define ide_drv_g(disk, cont_type) \ container_of((disk)->private_data, struct cont_type, driver) -struct ide_task_s; struct ide_port_info; struct ide_tp_ops { @@ -694,6 +797,8 @@ typedef struct hwif_s { /* data phase of the active command (currently only valid for PIO/DMA) */ int data_phase; + struct ide_task_s task; /* current command */ + unsigned int nsect; unsigned int nleft; struct scatterlist *cursg; @@ -1059,110 +1164,6 @@ 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_FLAGGED = (1 << 2), - IDE_TFLAG_OUT_DATA = (1 << 3), - IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), - IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), - IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), - IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), - IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), - IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | - IDE_TFLAG_OUT_HOB_NSECT | - IDE_TFLAG_OUT_HOB_LBAL | - IDE_TFLAG_OUT_HOB_LBAM | - IDE_TFLAG_OUT_HOB_LBAH, - IDE_TFLAG_OUT_FEATURE = (1 << 9), - IDE_TFLAG_OUT_NSECT = (1 << 10), - IDE_TFLAG_OUT_LBAL = (1 << 11), - IDE_TFLAG_OUT_LBAM = (1 << 12), - IDE_TFLAG_OUT_LBAH = (1 << 13), - IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | - IDE_TFLAG_OUT_NSECT | - IDE_TFLAG_OUT_LBAL | - IDE_TFLAG_OUT_LBAM | - IDE_TFLAG_OUT_LBAH, - IDE_TFLAG_OUT_DEVICE = (1 << 14), - IDE_TFLAG_WRITE = (1 << 15), - IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), - IDE_TFLAG_IN_DATA = (1 << 17), - IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), - IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), - IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), - IDE_TFLAG_IN_HOB_NSECT = (1 << 21), - IDE_TFLAG_IN_HOB_LBAL = (1 << 22), - IDE_TFLAG_IN_HOB_LBAM = (1 << 23), - IDE_TFLAG_IN_HOB_LBAH = (1 << 24), - IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | - IDE_TFLAG_IN_HOB_LBAM | - IDE_TFLAG_IN_HOB_LBAH, - IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | - IDE_TFLAG_IN_HOB_NSECT | - IDE_TFLAG_IN_HOB_LBA, - IDE_TFLAG_IN_FEATURE = (1 << 1), - IDE_TFLAG_IN_NSECT = (1 << 25), - IDE_TFLAG_IN_LBAL = (1 << 26), - IDE_TFLAG_IN_LBAM = (1 << 27), - IDE_TFLAG_IN_LBAH = (1 << 28), - IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | - IDE_TFLAG_IN_LBAM | - IDE_TFLAG_IN_LBAH, - IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | - IDE_TFLAG_IN_LBA, - IDE_TFLAG_IN_DEVICE = (1 << 29), - IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | - IDE_TFLAG_IN_HOB, - IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | - IDE_TFLAG_IN_TF, - IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | - IDE_TFLAG_IN_DEVICE, - /* force 16-bit I/O operations */ - IDE_TFLAG_IO_16BIT = (1 << 30), - /* ide_task_t was allocated using kmalloc() */ - IDE_TFLAG_DYN = (1 << 31), -}; - -struct ide_taskfile { - u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ - - u8 hob_feature; /* 1-5: additional data to support LBA48 */ - u8 hob_nsect; - u8 hob_lbal; - u8 hob_lbam; - u8 hob_lbah; - - u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ - - union { /* 7: */ - u8 error; /* read: error */ - u8 feature; /* write: feature */ - }; - - u8 nsect; /* 8: number of sectors */ - u8 lbal; /* 9: LBA low */ - u8 lbam; /* 10: LBA mid */ - u8 lbah; /* 11: LBA high */ - - u8 device; /* 12: device select */ - - union { /* 13: */ - u8 status; /* read: status */ - u8 command; /* write: command */ - }; -}; - -typedef struct ide_task_s { - union { - struct ide_taskfile tf; - u8 tf_array[14]; - }; - u32 tf_flags; - int data_phase; - struct request *rq; /* copy of request */ - void *special; /* valid_t generally */ -} ide_task_t; - void ide_tf_dump(const char *, struct ide_taskfile *); void ide_exec_command(ide_hwif_t *, u8); |
