/*
- * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
- * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2001-2002 Klaus Smolin
+ * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
+ * Copyright (C) 2000-2002
Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2001-2002 Klaus Smolin
* IBM Storage Technology Division
- * Copyright (C) 2003-2004 Bartlomiej Zolnierkiewicz
+ * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz
*
* The big the bad and the ugly.
*/
SELECT_MASK(drive, 0);
if (task->tf_flags & IDE_TFLAG_OUT_DATA)
- hwif->OUTW((tf->hob_data << 8) | tf->data, IDE_DATA_REG);
+ hwif->OUTW((tf->hob_data << 8) | tf->data,
+ hwif->io_ports[IDE_DATA_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
- hwif->OUTB(tf->hob_feature, IDE_FEATURE_REG);
+ hwif->OUTB(tf->hob_feature, hwif->io_ports[IDE_FEATURE_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
- hwif->OUTB(tf->hob_nsect, IDE_NSECTOR_REG);
+ hwif->OUTB(tf->hob_nsect, hwif->io_ports[IDE_NSECTOR_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
- hwif->OUTB(tf->hob_lbal, IDE_SECTOR_REG);
+ hwif->OUTB(tf->hob_lbal, hwif->io_ports[IDE_SECTOR_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
- hwif->OUTB(tf->hob_lbam, IDE_LCYL_REG);
+ hwif->OUTB(tf->hob_lbam, hwif->io_ports[IDE_LCYL_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
- hwif->OUTB(tf->hob_lbah, IDE_HCYL_REG);
+ hwif->OUTB(tf->hob_lbah, hwif->io_ports[IDE_HCYL_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
- hwif->OUTB(tf->feature, IDE_FEATURE_REG);
+ hwif->OUTB(tf->feature, hwif->io_ports[IDE_FEATURE_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
- hwif->OUTB(tf->nsect, IDE_NSECTOR_REG);
+ hwif->OUTB(tf->nsect, hwif->io_ports[IDE_NSECTOR_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
- hwif->OUTB(tf->lbal, IDE_SECTOR_REG);
+ hwif->OUTB(tf->lbal, hwif->io_ports[IDE_SECTOR_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
- hwif->OUTB(tf->lbam, IDE_LCYL_REG);
+ hwif->OUTB(tf->lbam, hwif->io_ports[IDE_LCYL_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
- hwif->OUTB(tf->lbah, IDE_HCYL_REG);
+ hwif->OUTB(tf->lbah, hwif->io_ports[IDE_HCYL_OFFSET]);
if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
- hwif->OUTB((tf->device & HIHI) | drive->select.all, IDE_SELECT_REG);
+ hwif->OUTB((tf->device & HIHI) | drive->select.all,
+ hwif->io_ports[IDE_SELECT_OFFSET]);
}
int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
switch (task->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
- hwif->OUTBSYNC(drive, tf->command, IDE_COMMAND_REG);
+ hwif->OUTBSYNC(drive, tf->command,
+ hwif->io_ports[IDE_COMMAND_OFFSET]);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, task->rq);
case TASKFILE_MULTI_IN:
*/
static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 stat;
+ u8 stat = ide_read_status(drive);
- if (OK_STAT(stat = hwif->INB(IDE_STATUS_REG),READY_STAT,BAD_STAT)) {
+ if (OK_STAT(stat, READY_STAT, BAD_STAT))
drive->mult_count = drive->mult_req;
- } else {
+ else {
drive->mult_req = drive->mult_count = 0;
drive->special.b.recalibrate = 1;
(void) ide_dump_status(drive, "set_multmode", stat);
*/
static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
int retries = 5;
u8 stat;
- while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--)
+ while (((stat = ide_read_status(drive)) & BUSY_STAT) && retries--)
udelay(10);
if (OK_STAT(stat, READY_STAT, BAD_STAT))
*/
static ide_startstop_t recal_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 stat;
+ u8 stat = ide_read_status(drive);
- if (!OK_STAT(stat = hwif->INB(IDE_STATUS_REG), READY_STAT, BAD_STAT))
+ if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "recal_intr", stat);
return ide_stopped;
}
static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
{
ide_task_t *args = HWGROUP(drive)->rq->special;
- ide_hwif_t *hwif = HWIF(drive);
u8 stat;
local_irq_enable_in_hardirq();
- if (!OK_STAT(stat = hwif->INB(IDE_STATUS_REG),READY_STAT,BAD_STAT)) {
+ stat = ide_read_status(drive);
+
+ if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "task_no_data_intr", stat);
/* calls ide_end_drive_cmd */
- }
+
if (args)
- ide_end_drive_cmd(drive, stat, hwif->INB(IDE_ERROR_REG));
+ ide_end_drive_cmd(drive, stat, ide_read_error(drive));
return ide_stopped;
}
static u8 wait_drive_not_busy(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
int retries;
u8 stat;
* This can take up to 10 usec, but we will wait max 1 ms.
*/
for (retries = 0; retries < 100; retries++) {
- if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT)
+ stat = ide_read_status(drive);
+
+ if (stat & BUSY_STAT)
udelay(10);
else
break;
void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
{
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
- u8 err = drive->hwif->INB(IDE_ERROR_REG);
+ u8 err = ide_read_error(drive);
ide_end_drive_cmd(drive, stat, err);
return;
ide_end_request(drive, 1, rq->nr_sectors);
}
+/*
+ * We got an interrupt on a task_in case, but no errors and no DRQ.
+ *
+ * It might be a spurious irq (shared irq), but it might be a
+ * command that had no output.
+ */
+static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
+{
+ /* Command all done? */
+ if (OK_STAT(stat, READY_STAT, BUSY_STAT)) {
+ task_end_request(drive, rq, stat);
+ return ide_stopped;
+ }
+
+ /* Assume it was a spurious irq */
+ ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
+ return ide_started;
+}
+
/*
* Handler for command with PIO data-in phase (Read/Read Multiple).
*/
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
- u8 stat = hwif->INB(IDE_STATUS_REG);
+ u8 stat = ide_read_status(drive);
- /* new way for dealing with premature shared PCI interrupts */
- if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) {
- if (stat & (ERR_STAT | DRQ_STAT))
- return task_error(drive, rq, __FUNCTION__, stat);
- /* No data yet, so wait for another IRQ. */
- ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
- return ide_started;
- }
+ /* Error? */
+ if (stat & ERR_STAT)
+ return task_error(drive, rq, __FUNCTION__, stat);
+
+ /* Didn't want any data? Odd. */
+ if (!(stat & DRQ_STAT))
+ return task_in_unexpected(drive, rq, stat);
ide_pio_datablock(drive, rq, 0);
- /* If it was the last datablock check status and finish transfer. */
+ /* Are we done? Check status and finish transfer. */
if (!hwif->nleft) {
stat = wait_drive_not_busy(drive);
if (!OK_STAT(stat, 0, BAD_STAT))
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
- u8 stat = hwif->INB(IDE_STATUS_REG);
+ u8 stat = ide_read_status(drive);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __FUNCTION__, stat);
u8 args[4], xfer_rate = 0;
ide_task_t tfargs;
struct ide_taskfile *tf = &tfargs.tf;
+ struct hd_driveid *id = drive->id;
if (NULL == (void *) arg) {
struct request rq;
return -ENOMEM;
}
- if (set_transfer(drive, &tfargs)) {
+ if (tf->command == WIN_SETFEATURES &&
+ tf->feature == SETFEATURES_XFER &&
+ tf->nsect >= XFER_SW_DMA_0 &&
+ (id->dma_ultra || id->dma_mword || id->dma_1word)) {
xfer_rate = args[1];
- if (ide_ata66_check(drive, &tfargs))
+ if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) {
+ printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
+ "be set\n", drive->name);
goto abort;
+ }
}
err = ide_raw_taskfile(drive, &tfargs, buf, args[3]);
projects / deliverable / linux.git / blobdiff