void ide_tf_load(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;
u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
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, io_ports->data_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
- hwif->OUTB(tf->hob_feature, IDE_FEATURE_REG);
+ hwif->OUTB(tf->hob_feature, io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
- hwif->OUTB(tf->hob_nsect, IDE_NSECTOR_REG);
+ hwif->OUTB(tf->hob_nsect, io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
- hwif->OUTB(tf->hob_lbal, IDE_SECTOR_REG);
+ hwif->OUTB(tf->hob_lbal, io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
- hwif->OUTB(tf->hob_lbam, IDE_LCYL_REG);
+ hwif->OUTB(tf->hob_lbam, io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
- hwif->OUTB(tf->hob_lbah, IDE_HCYL_REG);
+ hwif->OUTB(tf->hob_lbah, io_ports->lbah_addr);
if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
- hwif->OUTB(tf->feature, IDE_FEATURE_REG);
+ hwif->OUTB(tf->feature, io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
- hwif->OUTB(tf->nsect, IDE_NSECTOR_REG);
+ hwif->OUTB(tf->nsect, io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
- hwif->OUTB(tf->lbal, IDE_SECTOR_REG);
+ hwif->OUTB(tf->lbal, io_ports->lbal_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
- hwif->OUTB(tf->lbam, IDE_LCYL_REG);
+ hwif->OUTB(tf->lbam, io_ports->lbam_addr);
if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
- hwif->OUTB(tf->lbah, IDE_HCYL_REG);
+ hwif->OUTB(tf->lbah, io_ports->lbah_addr);
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,
+ io_ports->device_addr);
}
int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
ide_hwif_t *hwif = HWIF(drive);
struct ide_taskfile *tf = &task->tf;
ide_handler_t *handler = NULL;
+ const struct ide_dma_ops *dma_ops = hwif->dma_ops;
if (task->data_phase == TASKFILE_MULTI_IN ||
task->data_phase == TASKFILE_MULTI_OUT) {
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.command_addr);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, task->rq);
case TASKFILE_MULTI_IN:
return ide_started;
default:
if (task_dma_ok(task) == 0 || drive->using_dma == 0 ||
- hwif->dma_setup(drive))
+ dma_ops->dma_setup(drive))
return ide_stopped;
- hwif->dma_exec_cmd(drive, tf->command);
- hwif->dma_start(drive);
+ dma_ops->dma_exec_cmd(drive, tf->command);
+ dma_ops->dma_start(drive);
return ide_started;
}
}
return stat;
}
-static void ide_pio_sector(ide_drive_t *drive, unsigned int write)
+static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
+ unsigned int write)
{
ide_hwif_t *hwif = drive->hwif;
struct scatterlist *sg = hwif->sg_table;
/* do the actual data transfer */
if (write)
- hwif->ata_output_data(drive, buf, SECTOR_WORDS);
+ hwif->output_data(drive, rq, buf, SECTOR_SIZE);
else
- hwif->ata_input_data(drive, buf, SECTOR_WORDS);
+ hwif->input_data(drive, rq, buf, SECTOR_SIZE);
kunmap_atomic(buf, KM_BIO_SRC_IRQ);
#ifdef CONFIG_HIGHMEM
#endif
}
-static void ide_pio_multi(ide_drive_t *drive, unsigned int write)
+static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
+ unsigned int write)
{
unsigned int nsect;
nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
while (nsect--)
- ide_pio_sector(drive, write);
+ ide_pio_sector(drive, rq, write);
}
static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
switch (drive->hwif->data_phase) {
case TASKFILE_MULTI_IN:
case TASKFILE_MULTI_OUT:
- ide_pio_multi(drive, write);
+ ide_pio_multi(drive, rq, write);
break;
default:
- ide_pio_sector(drive, write);
+ ide_pio_sector(drive, rq, write);
break;
}
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).
*/
struct request *rq = HWGROUP(drive)->rq;
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, __func__, 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))
- return task_error(drive, rq, __FUNCTION__, stat);
+ return task_error(drive, rq, __func__, stat);
task_end_request(drive, rq, stat);
return ide_stopped;
}
u8 stat = ide_read_status(drive);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
- return task_error(drive, rq, __FUNCTION__, stat);
+ return task_error(drive, rq, __func__, stat);
/* Deal with unexpected ATA data phase. */
if (((stat & DRQ_STAT) == 0) ^ !hwif->nleft)
- return task_error(drive, rq, __FUNCTION__, stat);
+ return task_error(drive, rq, __func__, stat);
if (!hwif->nleft) {
task_end_request(drive, rq, stat);
/* (hs): give up if multcount is not set */
printk(KERN_ERR "%s: %s Multimode Write " \
"multcount is not set\n",
- drive->name, __FUNCTION__);
+ drive->name, __func__);
err = -EPERM;
goto abort;
}
/* (hs): give up if multcount is not set */
printk(KERN_ERR "%s: %s Multimode Read failure " \
"multcount is not set\n",
- drive->name, __FUNCTION__);
+ drive->name, __func__);
err = -EPERM;
goto abort;
}
git.openpandora.org / pandora-kernel.git / blobdiff