X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fide%2Fide-io.c;h=e6bb9cf24e3d8f3fcbd599319fb693fdfe497019;hb=17e70491404c73012a7991a068ba62ec59bebdb2;hp=5c8b008676fb3acab8272af5146a3b91597b8d26;hpb=ed67b92385a5afddc98d5ff0894b2854c4a54dac;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 5c8b008..e6bb9cf 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -47,26 +47,30 @@ #include #include #include +#include #include #include #include #include -#include static int __ide_end_request(ide_drive_t *drive, struct request *rq, - int uptodate, unsigned int nr_bytes) + int uptodate, unsigned int nr_bytes, int dequeue) { int ret = 1; + int error = 0; + + if (uptodate <= 0) + error = uptodate ? uptodate : -EIO; /* * if failfast is set on a request, override number of sectors and * complete the whole request right now */ - if (blk_noretry_request(rq) && end_io_error(uptodate)) + if (blk_noretry_request(rq) && error) nr_bytes = rq->hard_nr_sectors << 9; - if (!blk_fs_request(rq) && end_io_error(uptodate) && !rq->errors) + if (!blk_fs_request(rq) && error && !rq->errors) rq->errors = -EIO; /* @@ -75,15 +79,12 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq, */ if (drive->state == DMA_PIO_RETRY && drive->retry_pio <= 3) { drive->state = 0; - HWGROUP(drive)->hwif->ide_dma_on(drive); + ide_dma_on(drive); } - if (!end_that_request_chunk(rq, uptodate, nr_bytes)) { - add_disk_randomness(rq->rq_disk); - if (!list_empty(&rq->queuelist)) - blkdev_dequeue_request(rq); - HWGROUP(drive)->rq = NULL; - end_that_request_last(rq, uptodate); + if (!__blk_end_request(rq, error, nr_bytes)) { + if (dequeue) + HWGROUP(drive)->rq = NULL; ret = 0; } @@ -122,7 +123,7 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors) nr_bytes = rq->hard_cur_sectors << 9; } - ret = __ide_end_request(drive, rq, uptodate, nr_bytes); + ret = __ide_end_request(drive, rq, uptodate, nr_bytes, 1); spin_unlock_irqrestore(&ide_lock, flags); return ret; @@ -187,18 +188,14 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * return ide_stopped; } if (ide_id_has_flush_cache_ext(drive->id)) - args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE_EXT; + args->tf.command = WIN_FLUSH_CACHE_EXT; else - args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE; - args->command_type = IDE_DRIVE_TASK_NO_DATA; - args->handler = &task_no_data_intr; - return do_rw_taskfile(drive, args); + args->tf.command = WIN_FLUSH_CACHE; + goto out_do_tf; case idedisk_pm_standby: /* Suspend step 2 (standby) */ - args->tfRegister[IDE_COMMAND_OFFSET] = WIN_STANDBYNOW1; - args->command_type = IDE_DRIVE_TASK_NO_DATA; - args->handler = &task_no_data_intr; - return do_rw_taskfile(drive, args); + args->tf.command = WIN_STANDBYNOW1; + goto out_do_tf; case idedisk_pm_restore_pio: /* Resume step 1 (restore PIO) */ ide_set_max_pio(drive); @@ -212,10 +209,8 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * return ide_stopped; case idedisk_pm_idle: /* Resume step 2 (idle) */ - args->tfRegister[IDE_COMMAND_OFFSET] = WIN_IDLEIMMEDIATE; - args->command_type = IDE_DRIVE_TASK_NO_DATA; - args->handler = task_no_data_intr; - return do_rw_taskfile(drive, args); + args->tf.command = WIN_IDLEIMMEDIATE; + goto out_do_tf; case ide_pm_restore_dma: /* Resume step 3 (restore DMA) */ /* @@ -223,9 +218,8 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * * we could be smarter and check for current xfer_speed * in struct drive etc... */ - if (drive->hwif->ide_dma_on == NULL) + if (drive->hwif->dma_host_set == NULL) break; - drive->hwif->dma_off_quietly(drive); /* * TODO: respect ->using_dma setting */ @@ -234,6 +228,11 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * } pm->pm_step = ide_pm_state_completed; return ide_stopped; + +out_do_tf: + args->tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; + args->data_phase = TASKFILE_NO_DATA; + return do_rw_taskfile(drive, args); } /** @@ -255,39 +254,13 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, int uptodate, int nr_sectors) { unsigned long flags; - int ret = 1; + int ret; spin_lock_irqsave(&ide_lock, flags); - BUG_ON(!blk_rq_started(rq)); - - /* - * if failfast is set on a request, override number of sectors and - * complete the whole request right now - */ - if (blk_noretry_request(rq) && end_io_error(uptodate)) - nr_sectors = rq->hard_nr_sectors; - - if (!blk_fs_request(rq) && end_io_error(uptodate) && !rq->errors) - rq->errors = -EIO; - - /* - * decide whether to reenable DMA -- 3 is a random magic for now, - * if we DMA timeout more than 3 times, just stay in PIO - */ - if (drive->state == DMA_PIO_RETRY && drive->retry_pio <= 3) { - drive->state = 0; - HWGROUP(drive)->hwif->ide_dma_on(drive); - } - - if (!end_that_request_first(rq, uptodate, nr_sectors)) { - add_disk_randomness(rq->rq_disk); - if (blk_rq_tagged(rq)) - blk_queue_end_tag(drive->queue, rq); - end_that_request_last(rq, uptodate); - ret = 0; - } + ret = __ide_end_request(drive, rq, uptodate, nr_sectors << 9, 0); spin_unlock_irqrestore(&ide_lock, flags); + return ret; } EXPORT_SYMBOL_GPL(ide_end_dequeued_request); @@ -316,12 +289,54 @@ static void ide_complete_pm_request (ide_drive_t *drive, struct request *rq) drive->blocked = 0; blk_start_queue(drive->queue); } - blkdev_dequeue_request(rq); HWGROUP(drive)->rq = NULL; - end_that_request_last(rq, 1); + if (__blk_end_request(rq, 0, 0)) + BUG(); spin_unlock_irqrestore(&ide_lock, flags); } +void ide_tf_read(ide_drive_t *drive, ide_task_t *task) +{ + ide_hwif_t *hwif = drive->hwif; + struct ide_taskfile *tf = &task->tf; + + if (task->tf_flags & IDE_TFLAG_IN_DATA) { + u16 data = hwif->INW(IDE_DATA_REG); + + tf->data = data & 0xff; + tf->hob_data = (data >> 8) & 0xff; + } + + /* be sure we're looking at the low order bits */ + hwif->OUTB(drive->ctl & ~0x80, IDE_CONTROL_REG); + + if (task->tf_flags & IDE_TFLAG_IN_NSECT) + tf->nsect = hwif->INB(IDE_NSECTOR_REG); + if (task->tf_flags & IDE_TFLAG_IN_LBAL) + tf->lbal = hwif->INB(IDE_SECTOR_REG); + if (task->tf_flags & IDE_TFLAG_IN_LBAM) + tf->lbam = hwif->INB(IDE_LCYL_REG); + if (task->tf_flags & IDE_TFLAG_IN_LBAH) + tf->lbah = hwif->INB(IDE_HCYL_REG); + if (task->tf_flags & IDE_TFLAG_IN_DEVICE) + tf->device = hwif->INB(IDE_SELECT_REG); + + if (task->tf_flags & IDE_TFLAG_LBA48) { + hwif->OUTB(drive->ctl | 0x80, IDE_CONTROL_REG); + + if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) + tf->hob_feature = hwif->INB(IDE_FEATURE_REG); + if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT) + tf->hob_nsect = hwif->INB(IDE_NSECTOR_REG); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL) + tf->hob_lbal = hwif->INB(IDE_SECTOR_REG); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM) + tf->hob_lbam = hwif->INB(IDE_LCYL_REG); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH) + tf->hob_lbah = hwif->INB(IDE_HCYL_REG); + } +} + /** * ide_end_drive_cmd - end an explicit drive command * @drive: command @@ -338,7 +353,6 @@ static void ide_complete_pm_request (ide_drive_t *drive, struct request *rq) void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) { - ide_hwif_t *hwif = HWIF(drive); unsigned long flags; struct request *rq; @@ -346,59 +360,18 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) rq = HWGROUP(drive)->rq; spin_unlock_irqrestore(&ide_lock, flags); - if (rq->cmd_type == REQ_TYPE_ATA_CMD) { - u8 *args = (u8 *) rq->buffer; - if (rq->errors == 0) - rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT); - - if (args) { - args[0] = stat; - args[1] = err; - args[2] = hwif->INB(IDE_NSECTOR_REG); - } - } else if (rq->cmd_type == REQ_TYPE_ATA_TASK) { - u8 *args = (u8 *) rq->buffer; - if (rq->errors == 0) - rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT); - - if (args) { - args[0] = stat; - args[1] = err; - args[2] = hwif->INB(IDE_NSECTOR_REG); - args[3] = hwif->INB(IDE_SECTOR_REG); - args[4] = hwif->INB(IDE_LCYL_REG); - args[5] = hwif->INB(IDE_HCYL_REG); - args[6] = hwif->INB(IDE_SELECT_REG); - } - } else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { ide_task_t *args = (ide_task_t *) rq->special; if (rq->errors == 0) rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT); if (args) { - if (args->tf_in_flags.b.data) { - u16 data = hwif->INW(IDE_DATA_REG); - args->tfRegister[IDE_DATA_OFFSET] = (data) & 0xFF; - args->hobRegister[IDE_DATA_OFFSET] = (data >> 8) & 0xFF; - } - args->tfRegister[IDE_ERROR_OFFSET] = err; - /* be sure we're looking at the low order bits */ - hwif->OUTB(drive->ctl & ~0x80, IDE_CONTROL_REG); - args->tfRegister[IDE_NSECTOR_OFFSET] = hwif->INB(IDE_NSECTOR_REG); - args->tfRegister[IDE_SECTOR_OFFSET] = hwif->INB(IDE_SECTOR_REG); - args->tfRegister[IDE_LCYL_OFFSET] = hwif->INB(IDE_LCYL_REG); - args->tfRegister[IDE_HCYL_OFFSET] = hwif->INB(IDE_HCYL_REG); - args->tfRegister[IDE_SELECT_OFFSET] = hwif->INB(IDE_SELECT_REG); - args->tfRegister[IDE_STATUS_OFFSET] = stat; - - if (drive->addressing == 1) { - hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG); - args->hobRegister[IDE_FEATURE_OFFSET] = hwif->INB(IDE_FEATURE_REG); - args->hobRegister[IDE_NSECTOR_OFFSET] = hwif->INB(IDE_NSECTOR_REG); - args->hobRegister[IDE_SECTOR_OFFSET] = hwif->INB(IDE_SECTOR_REG); - args->hobRegister[IDE_LCYL_OFFSET] = hwif->INB(IDE_LCYL_REG); - args->hobRegister[IDE_HCYL_OFFSET] = hwif->INB(IDE_HCYL_REG); - } + struct ide_taskfile *tf = &args->tf; + + tf->error = err; + tf->status = stat; + + ide_tf_read(drive, args); } } else if (blk_pm_request(rq)) { struct request_pm_state *pm = rq->data; @@ -413,10 +386,10 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) } spin_lock_irqsave(&ide_lock, flags); - blkdev_dequeue_request(rq); HWGROUP(drive)->rq = NULL; rq->errors = err; - end_that_request_last(rq, !rq->errors); + if (__blk_end_request(rq, (rq->errors ? -EIO : 0), 0)) + BUG(); spin_unlock_irqrestore(&ide_lock, flags); } @@ -637,89 +610,26 @@ ide_startstop_t ide_abort(ide_drive_t *drive, const char *msg) return __ide_abort(drive, rq); } -/** - * ide_cmd - issue a simple drive command - * @drive: drive the command is for - * @cmd: command byte - * @nsect: sector byte - * @handler: handler for the command completion - * - * Issue a simple drive command with interrupts. - * The drive must be selected beforehand. - */ - -static void ide_cmd (ide_drive_t *drive, u8 cmd, u8 nsect, - ide_handler_t *handler) -{ - ide_hwif_t *hwif = HWIF(drive); - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl,IDE_CONTROL_REG); /* clear nIEN */ - SELECT_MASK(drive,0); - hwif->OUTB(nsect,IDE_NSECTOR_REG); - ide_execute_command(drive, cmd, handler, WAIT_CMD, NULL); -} - -/** - * drive_cmd_intr - drive command completion interrupt - * @drive: drive the completion interrupt occurred on - * - * drive_cmd_intr() is invoked on completion of a special DRIVE_CMD. - * We do any necessary data reading and then wait for the drive to - * go non busy. At that point we may read the error data and complete - * the request - */ - -static ide_startstop_t drive_cmd_intr (ide_drive_t *drive) -{ - struct request *rq = HWGROUP(drive)->rq; - ide_hwif_t *hwif = HWIF(drive); - u8 *args = (u8 *) rq->buffer; - u8 stat = hwif->INB(IDE_STATUS_REG); - int retries = 10; - - local_irq_enable_in_hardirq(); - if ((stat & DRQ_STAT) && args && args[3]) { - u8 io_32bit = drive->io_32bit; - drive->io_32bit = 0; - hwif->ata_input_data(drive, &args[4], args[3] * SECTOR_WORDS); - drive->io_32bit = io_32bit; - while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--) - udelay(100); - } - - if (!OK_STAT(stat, READY_STAT, BAD_STAT)) - return ide_error(drive, "drive_cmd", stat); - /* calls ide_end_drive_cmd */ - ide_end_drive_cmd(drive, stat, hwif->INB(IDE_ERROR_REG)); - return ide_stopped; -} - -static void ide_init_specify_cmd(ide_drive_t *drive, ide_task_t *task) +static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf) { - task->tfRegister[IDE_NSECTOR_OFFSET] = drive->sect; - task->tfRegister[IDE_SECTOR_OFFSET] = drive->sect; - task->tfRegister[IDE_LCYL_OFFSET] = drive->cyl; - task->tfRegister[IDE_HCYL_OFFSET] = drive->cyl>>8; - task->tfRegister[IDE_SELECT_OFFSET] = ((drive->head-1)|drive->select.all)&0xBF; - task->tfRegister[IDE_COMMAND_OFFSET] = WIN_SPECIFY; - - task->handler = &set_geometry_intr; + tf->nsect = drive->sect; + tf->lbal = drive->sect; + tf->lbam = drive->cyl; + tf->lbah = drive->cyl >> 8; + tf->device = ((drive->head - 1) | drive->select.all) & ~ATA_LBA; + tf->command = WIN_SPECIFY; } -static void ide_init_restore_cmd(ide_drive_t *drive, ide_task_t *task) +static void ide_tf_set_restore_cmd(ide_drive_t *drive, struct ide_taskfile *tf) { - task->tfRegister[IDE_NSECTOR_OFFSET] = drive->sect; - task->tfRegister[IDE_COMMAND_OFFSET] = WIN_RESTORE; - - task->handler = &recal_intr; + tf->nsect = drive->sect; + tf->command = WIN_RESTORE; } -static void ide_init_setmult_cmd(ide_drive_t *drive, ide_task_t *task) +static void ide_tf_set_setmult_cmd(ide_drive_t *drive, struct ide_taskfile *tf) { - task->tfRegister[IDE_NSECTOR_OFFSET] = drive->mult_req; - task->tfRegister[IDE_COMMAND_OFFSET] = WIN_SETMULT; - - task->handler = &set_multmode_intr; + tf->nsect = drive->mult_req; + tf->command = WIN_SETMULT; } static ide_startstop_t ide_disk_special(ide_drive_t *drive) @@ -728,19 +638,19 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive) ide_task_t args; memset(&args, 0, sizeof(ide_task_t)); - args.command_type = IDE_DRIVE_TASK_NO_DATA; + args.data_phase = TASKFILE_NO_DATA; if (s->b.set_geometry) { s->b.set_geometry = 0; - ide_init_specify_cmd(drive, &args); + ide_tf_set_specify_cmd(drive, &args.tf); } else if (s->b.recalibrate) { s->b.recalibrate = 0; - ide_init_restore_cmd(drive, &args); + ide_tf_set_restore_cmd(drive, &args.tf); } else if (s->b.set_multmode) { s->b.set_multmode = 0; if (drive->mult_req > drive->id->max_multsect) drive->mult_req = drive->id->max_multsect; - ide_init_setmult_cmd(drive, &args); + ide_tf_set_setmult_cmd(drive, &args.tf); } else if (s->all) { int special = s->all; s->all = 0; @@ -748,6 +658,9 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive) return ide_stopped; } + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE | + IDE_TFLAG_CUSTOM_HANDLER; + do_rw_taskfile(drive, &args); return ide_started; @@ -800,7 +713,20 @@ static ide_startstop_t do_special (ide_drive_t *drive) s->b.set_tune = 0; if (set_pio_mode_abuse(drive->hwif, req_pio)) { - if (hwif->set_pio_mode) + + if (hwif->set_pio_mode == NULL) + return ide_stopped; + + /* + * take ide_lock for drive->[no_]unmask/[no_]io_32bit + */ + if (req_pio == 8 || req_pio == 9) { + unsigned long flags; + + spin_lock_irqsave(&ide_lock, flags); + hwif->set_pio_mode(drive, req_pio); + spin_unlock_irqrestore(&ide_lock, flags); + } else hwif->set_pio_mode(drive, req_pio); } else { int keep_dma = drive->using_dma; @@ -809,7 +735,7 @@ static ide_startstop_t do_special (ide_drive_t *drive) if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) { if (keep_dma) - hwif->ide_dma_on(drive); + ide_dma_on(drive); } } @@ -869,13 +795,10 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, struct request *rq) { ide_hwif_t *hwif = HWIF(drive); - if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - ide_task_t *args = rq->special; - - if (!args) - goto done; + ide_task_t *task = rq->special; - hwif->data_phase = args->data_phase; + if (task) { + hwif->data_phase = task->data_phase; switch (hwif->data_phase) { case TASKFILE_MULTI_OUT: @@ -888,61 +811,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, break; } - if (args->tf_out_flags.all != 0) - return flagged_taskfile(drive, args); - return do_rw_taskfile(drive, args); - } else if (rq->cmd_type == REQ_TYPE_ATA_TASK) { - u8 *args = rq->buffer; - u8 sel; - - if (!args) - goto done; -#ifdef DEBUG - printk("%s: DRIVE_TASK_CMD ", drive->name); - printk("cmd=0x%02x ", args[0]); - printk("fr=0x%02x ", args[1]); - printk("ns=0x%02x ", args[2]); - printk("sc=0x%02x ", args[3]); - printk("lcyl=0x%02x ", args[4]); - printk("hcyl=0x%02x ", args[5]); - printk("sel=0x%02x\n", args[6]); -#endif - hwif->OUTB(args[1], IDE_FEATURE_REG); - hwif->OUTB(args[3], IDE_SECTOR_REG); - hwif->OUTB(args[4], IDE_LCYL_REG); - hwif->OUTB(args[5], IDE_HCYL_REG); - sel = (args[6] & ~0x10); - if (drive->select.b.unit) - sel |= 0x10; - hwif->OUTB(sel, IDE_SELECT_REG); - ide_cmd(drive, args[0], args[2], &drive_cmd_intr); - return ide_started; - } else if (rq->cmd_type == REQ_TYPE_ATA_CMD) { - u8 *args = rq->buffer; - - if (!args) - goto done; -#ifdef DEBUG - printk("%s: DRIVE_CMD ", drive->name); - printk("cmd=0x%02x ", args[0]); - printk("sc=0x%02x ", args[1]); - printk("fr=0x%02x ", args[2]); - printk("xx=0x%02x\n", args[3]); -#endif - if (args[0] == WIN_SMART) { - hwif->OUTB(0x4f, IDE_LCYL_REG); - hwif->OUTB(0xc2, IDE_HCYL_REG); - hwif->OUTB(args[2],IDE_FEATURE_REG); - hwif->OUTB(args[1],IDE_SECTOR_REG); - ide_cmd(drive, args[0], args[3], &drive_cmd_intr); - return ide_started; - } - hwif->OUTB(args[2],IDE_FEATURE_REG); - ide_cmd(drive, args[0], args[1], &drive_cmd_intr); - return ide_started; - } - -done: + return do_rw_taskfile(drive, task); + } + /* * NULL is actually a valid way of waiting for * all current requests to be flushed from the queue. @@ -982,7 +853,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) if (rc) printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); SELECT_DRIVE(drive); - HWIF(drive)->OUTB(8, HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]); + ide_set_irq(drive, 1); rc = ide_wait_not_busy(HWIF(drive), 100000); if (rc) printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); @@ -1014,6 +885,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) /* bail early if we've exceeded max_failures */ if (drive->max_failures && (drive->failures > drive->max_failures)) { + rq->cmd_flags |= REQ_FAILED; goto kill_rq; } @@ -1045,9 +917,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) if (drive->current_speed == 0xff) ide_config_drive_speed(drive, drive->desired_speed); - if (rq->cmd_type == REQ_TYPE_ATA_CMD || - rq->cmd_type == REQ_TYPE_ATA_TASK || - rq->cmd_type == REQ_TYPE_ATA_TASKFILE) + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) return execute_drive_cmd(drive, rq); else if (blk_pm_request(rq)) { struct request_pm_state *pm = rq->data; @@ -1255,11 +1125,13 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) } again: hwif = HWIF(drive); - if (hwgroup->hwif->sharing_irq && - hwif != hwgroup->hwif && - hwif->io_ports[IDE_CONTROL_OFFSET]) { - /* set nIEN for previous hwif */ - SELECT_INTERRUPT(drive); + if (hwgroup->hwif->sharing_irq && hwif != hwgroup->hwif) { + /* + * set nIEN for previous hwif, drives in the + * quirk_list may not like intr setups/cleanups + */ + if (drive->quirk_list != 1) + ide_set_irq(drive, 0); } hwgroup->hwif = hwif; hwgroup->drive = drive; @@ -1372,7 +1244,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) */ drive->retry_pio++; drive->state = DMA_PIO_RETRY; - hwif->dma_off_quietly(drive); + ide_dma_off_quietly(drive); /* * un-busy drive etc (hwgroup->busy is cleared on return) and @@ -1465,12 +1337,8 @@ void ide_timer_expiry (unsigned long data) */ spin_unlock(&ide_lock); hwif = HWIF(drive); -#if DISABLE_IRQ_NOSYNC - disable_irq_nosync(hwif->irq); -#else /* disable_irq_nosync ?? */ disable_irq(hwif->irq); -#endif /* DISABLE_IRQ_NOSYNC */ /* local CPU only, * as if we were handling an interrupt */ local_irq_disable(); @@ -1721,7 +1589,6 @@ irqreturn_t ide_intr (int irq, void *dev_id) void ide_init_drive_cmd (struct request *rq) { memset(rq, 0, sizeof(*rq)); - rq->cmd_type = REQ_TYPE_ATA_CMD; rq->ref_count = 1; } @@ -1796,3 +1663,19 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio } EXPORT_SYMBOL(ide_do_drive_cmd); + +void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM | + IDE_TFLAG_OUT_FEATURE | tf_flags; + task.tf.feature = dma; /* Use PIO/DMA */ + task.tf.lbam = bcount & 0xff; + task.tf.lbah = (bcount >> 8) & 0xff; + + ide_tf_load(drive, &task); +} + +EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);