ide-tape: mv idetape_empty_write_pipeline ide_tape_flush_merge_buffer

[linux-2.6] / drivers / ide / ide-io.c

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 4bddef0c0b965b341c5c96a16bc9d5d036ce9efc..3a2d8930d17ff68bd596a5828a2558bb232b2b52 100644 (file)
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -218,7 +218,7 @@ 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->dma_host_set == NULL)
+               if (drive->hwif->dma_ops == NULL)
                        break;
                /*
                 * TODO: respect ->using_dma setting
@@ -298,42 +298,43 @@ static void ide_complete_pm_request (ide_drive_t *drive, struct request *rq)
 void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 {
        ide_hwif_t *hwif = drive->hwif;
+       struct ide_io_ports *io_ports = &hwif->io_ports;
        struct ide_taskfile *tf = &task->tf;
 
        if (task->tf_flags & IDE_TFLAG_IN_DATA) {
-               u16 data = hwif->INW(IDE_DATA_REG);
+               u16 data = hwif->INW(io_ports->data_addr);
 
                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);
+       hwif->OUTB(drive->ctl & ~0x80, io_ports->ctl_addr);
 
        if (task->tf_flags & IDE_TFLAG_IN_NSECT)
-               tf->nsect  = hwif->INB(IDE_NSECTOR_REG);
+               tf->nsect  = hwif->INB(io_ports->nsect_addr);
        if (task->tf_flags & IDE_TFLAG_IN_LBAL)
-               tf->lbal   = hwif->INB(IDE_SECTOR_REG);
+               tf->lbal   = hwif->INB(io_ports->lbal_addr);
        if (task->tf_flags & IDE_TFLAG_IN_LBAM)
-               tf->lbam   = hwif->INB(IDE_LCYL_REG);
+               tf->lbam   = hwif->INB(io_ports->lbam_addr);
        if (task->tf_flags & IDE_TFLAG_IN_LBAH)
-               tf->lbah   = hwif->INB(IDE_HCYL_REG);
+               tf->lbah   = hwif->INB(io_ports->lbah_addr);
        if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
-               tf->device = hwif->INB(IDE_SELECT_REG);
+               tf->device = hwif->INB(io_ports->device_addr);
 
        if (task->tf_flags & IDE_TFLAG_LBA48) {
-               hwif->OUTB(drive->ctl | 0x80, IDE_CONTROL_REG);
+               hwif->OUTB(drive->ctl | 0x80, io_ports->ctl_addr);
 
                if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
-                       tf->hob_feature = hwif->INB(IDE_FEATURE_REG);
+                       tf->hob_feature = hwif->INB(io_ports->feature_addr);
                if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
-                       tf->hob_nsect   = hwif->INB(IDE_NSECTOR_REG);
+                       tf->hob_nsect   = hwif->INB(io_ports->nsect_addr);
                if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
-                       tf->hob_lbal    = hwif->INB(IDE_SECTOR_REG);
+                       tf->hob_lbal    = hwif->INB(io_ports->lbal_addr);
                if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
-                       tf->hob_lbam    = hwif->INB(IDE_LCYL_REG);
+                       tf->hob_lbam    = hwif->INB(io_ports->lbam_addr);
                if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
-                       tf->hob_lbah    = hwif->INB(IDE_HCYL_REG);
+                       tf->hob_lbah    = hwif->INB(io_ports->lbah_addr);
        }
 }
 
@@ -361,17 +362,21 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
        spin_unlock_irqrestore(&ide_lock, flags);
 
        if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
-               ide_task_t *args = (ide_task_t *) rq->special;
+               ide_task_t *task = (ide_task_t *)rq->special;
+
                if (rq->errors == 0)
-                       rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT);
-                       
-               if (args) {
-                       struct ide_taskfile *tf = &args->tf;
+                       rq->errors = !OK_STAT(stat, READY_STAT, BAD_STAT);
+
+               if (task) {
+                       struct ide_taskfile *tf = &task->tf;
 
                        tf->error = err;
                        tf->status = stat;
 
-                       ide_tf_read(drive, args);
+                       ide_tf_read(drive, task);
+
+                       if (task->tf_flags & IDE_TFLAG_DYN)
+                               kfree(task);
                }
        } else if (blk_pm_request(rq)) {
                struct request_pm_state *pm = rq->data;
@@ -388,7 +393,8 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
        spin_lock_irqsave(&ide_lock, flags);
        HWGROUP(drive)->rq = NULL;
        rq->errors = err;
-       if (__blk_end_request(rq, (rq->errors ? -EIO : 0), 0))
+       if (unlikely(__blk_end_request(rq, (rq->errors ? -EIO : 0),
+                                      blk_rq_bytes(rq))))
                BUG();
        spin_unlock_irqrestore(&ide_lock, flags);
 }
@@ -443,7 +449,8 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8
                if (err == ABRT_ERR) {
                        if (drive->select.b.lba &&
                            /* some newer drives don't support WIN_SPECIFY */
-                           hwif->INB(IDE_COMMAND_REG) == WIN_SPECIFY)
+                           hwif->INB(hwif->io_ports.command_addr) ==
+                               WIN_SPECIFY)
                                return ide_stopped;
                } else if ((err & BAD_CRC) == BAD_CRC) {
                        /* UDMA crc error, just retry the operation */
@@ -466,7 +473,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8
                return ide_stopped;
        }
 
-       if (hwif->INB(IDE_STATUS_REG) & (BUSY_STAT|DRQ_STAT))
+       if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
                rq->errors |= ERROR_RESET;
 
        if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
@@ -493,9 +500,9 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u
                /* add decoding error stuff */
        }
 
-       if (hwif->INB(IDE_STATUS_REG) & (BUSY_STAT|DRQ_STAT))
+       if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
                /* force an abort */
-               hwif->OUTB(WIN_IDLEIMMEDIATE, IDE_COMMAND_REG);
+               hwif->OUTB(WIN_IDLEIMMEDIATE, hwif->io_ports.command_addr);
 
        if (rq->errors >= ERROR_MAX) {
                ide_kill_rq(drive, rq);
@@ -708,15 +715,12 @@ static ide_startstop_t do_special (ide_drive_t *drive)
 #endif
        if (s->b.set_tune) {
                ide_hwif_t *hwif = drive->hwif;
+               const struct ide_port_ops *port_ops = hwif->port_ops;
                u8 req_pio = drive->tune_req;
 
                s->b.set_tune = 0;
 
                if (set_pio_mode_abuse(drive->hwif, req_pio)) {
-
-                       if (hwif->set_pio_mode == NULL)
-                               return ide_stopped;
-
                        /*
                         * take ide_lock for drive->[no_]unmask/[no_]io_32bit
                         */
@@ -724,10 +728,10 @@ static ide_startstop_t do_special (ide_drive_t *drive)
                                unsigned long flags;
 
                                spin_lock_irqsave(&ide_lock, flags);
-                               hwif->set_pio_mode(drive, req_pio);
+                               port_ops->set_pio_mode(drive, req_pio);
                                spin_unlock_irqrestore(&ide_lock, flags);
                        } else
-                               hwif->set_pio_mode(drive, req_pio);
+                               port_ops->set_pio_mode(drive, req_pio);
                } else {
                        int keep_dma = drive->using_dma;
 
@@ -821,9 +825,8 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 #ifdef DEBUG
        printk("%s: DRIVE_CMD (null)\n", drive->name);
 #endif
-       ide_end_drive_cmd(drive,
-                       hwif->INB(IDE_STATUS_REG),
-                       hwif->INB(IDE_ERROR_REG));
+       ide_end_drive_cmd(drive, ide_read_status(drive), ide_read_error(drive));
+
        return ide_stopped;
 }
 
@@ -1229,12 +1232,12 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
 
        if (error < 0) {
                printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
-               (void)HWIF(drive)->ide_dma_end(drive);
+               (void)hwif->dma_ops->dma_end(drive);
                ret = ide_error(drive, "dma timeout error",
-                                               hwif->INB(IDE_STATUS_REG));
+                               ide_read_status(drive));
        } else {
                printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
-               hwif->dma_timeout(drive);
+               hwif->dma_ops->dma_timeout(drive);
        }
 
        /*
@@ -1346,7 +1349,7 @@ void ide_timer_expiry (unsigned long data)
                                startstop = handler(drive);
                        } else if (drive_is_ready(drive)) {
                                if (drive->waiting_for_dma)
-                                       hwgroup->hwif->dma_lost_irq(drive);
+                                       hwif->dma_ops->dma_lost_irq(drive);
                                (void)ide_ack_intr(hwif);
                                printk(KERN_WARNING "%s: lost interrupt\n", drive->name);
                                startstop = handler(drive);
@@ -1355,7 +1358,8 @@ void ide_timer_expiry (unsigned long data)
                                        startstop = ide_dma_timeout_retry(drive, wait);
                                } else
                                        startstop =
-                                       ide_error(drive, "irq timeout", hwif->INB(IDE_STATUS_REG));
+                                       ide_error(drive, "irq timeout",
+                                                 ide_read_status(drive));
                        }
                        drive->service_time = jiffies - drive->service_start;
                        spin_lock_irq(&ide_lock);
@@ -1411,7 +1415,7 @@ static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup)
         */
        do {
                if (hwif->irq == irq) {
-                       stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+                       stat = hwif->INB(hwif->io_ports.status_addr);
                        if (!OK_STAT(stat, READY_STAT, BAD_STAT)) {
                                /* Try to not flood the console with msgs */
                                static unsigned long last_msgtime, count;
@@ -1501,7 +1505,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
                         * Whack the status register, just in case
                         * we have a leftover pending IRQ.
                         */
-                       (void) hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+                       (void) hwif->INB(hwif->io_ports.status_addr);
 #endif /* CONFIG_BLK_DEV_IDEPCI */
                }
                spin_unlock_irqrestore(&ide_lock, flags);