#define IDESCSI_DEBUG_LOG 0
/*
- * Packet command status bits.
- */
-#define PC_DMA_IN_PROGRESS 0 /* 1 while DMA in progress */
-#define PC_WRITING 1 /* Data direction */
-#define PC_TIMEDOUT 3 /* command timed out */
-#define PC_DMA_OK 4 /* Use DMA */
-
-/*
* SCSI command transformation layer
*/
#define IDESCSI_SG_TRANSFORM 1 /* /dev/sg transformation */
static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
unsigned int bcount)
{
+ ide_hwif_t *hwif = drive->hwif;
int count;
char *buf;
local_irq_save(flags);
buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
pc->sg->offset;
- drive->hwif->atapi_input_bytes(drive,
- buf + pc->b_count, count);
+ hwif->input_data(drive, NULL, buf + pc->b_count, count);
kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = sg_virt(pc->sg);
- drive->hwif->atapi_input_bytes(drive,
- buf + pc->b_count, count);
+ hwif->input_data(drive, NULL, buf + pc->b_count, count);
}
bcount -= count; pc->b_count += count;
if (pc->b_count == pc->sg->length) {
if (bcount) {
printk (KERN_ERR "ide-scsi: scatter gather table too small, discarding data\n");
- ide_atapi_discard_data(drive, bcount);
+ ide_pad_transfer(drive, 0, bcount);
}
}
static void idescsi_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
unsigned int bcount)
{
+ ide_hwif_t *hwif = drive->hwif;
int count;
char *buf;
local_irq_save(flags);
buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
pc->sg->offset;
- drive->hwif->atapi_output_bytes(drive,
- buf + pc->b_count, count);
+ hwif->output_data(drive, NULL, buf + pc->b_count, count);
kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = sg_virt(pc->sg);
- drive->hwif->atapi_output_bytes(drive,
- buf + pc->b_count, count);
+ hwif->output_data(drive, NULL, buf + pc->b_count, count);
}
bcount -= count; pc->b_count += count;
if (pc->b_count == pc->sg->length) {
if (bcount) {
printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n");
- ide_atapi_write_zeros(drive, bcount);
+ ide_pad_transfer(drive, 1, bcount);
}
}
kfree(pc);
return -ENOMEM;
}
- ide_init_drive_cmd(rq);
+ blk_rq_init(NULL, rq);
rq->special = (char *) pc;
pc->rq = rq;
pc->buf = buf;
pc->c[0] = REQUEST_SENSE;
pc->c[4] = pc->req_xfer = pc->buf_size = SCSI_SENSE_BUFFERSIZE;
rq->cmd_type = REQ_TYPE_SENSE;
+ rq->cmd_flags |= REQ_PREEMPT;
pc->timeout = jiffies + WAIT_READY;
/* NOTE! Save the failed packet command in "rq->buffer" */
rq->buffer = (void *) failed_cmd->special;
if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
/* force an abort */
- hwif->OUTB(WIN_IDLEIMMEDIATE,
- hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE,
+ hwif->io_ports.command_addr);
rq->errors++;
pc = opc;
rq = pc->rq;
pc->scsi_cmd->result = (CHECK_CONDITION << 1) |
- ((test_bit(PC_TIMEDOUT, &pc->flags)?DID_TIME_OUT:DID_OK) << 16);
- } else if (test_bit(PC_TIMEDOUT, &pc->flags)) {
+ (((pc->flags & PC_FLAG_TIMEDOUT) ?
+ DID_TIME_OUT :
+ DID_OK) << 16);
+ } else if (pc->flags & PC_FLAG_TIMEDOUT) {
if (log)
printk (KERN_WARNING "ide-scsi: %s: timed out for %lu\n",
drive->name, pc->scsi_cmd->serial_number);
#if IDESCSI_DEBUG_LOG
printk(KERN_WARNING "idescsi_expiry called for %lu at %lu\n", pc->scsi_cmd->serial_number, jiffies);
#endif
- set_bit(PC_TIMEDOUT, &pc->flags);
+ pc->flags |= PC_FLAG_TIMEDOUT;
return 0; /* we do not want the ide subsystem to retry */
}
printk (KERN_INFO "ide-scsi: Reached idescsi_pc_intr interrupt handler\n");
#endif /* IDESCSI_DEBUG_LOG */
- if (test_bit(PC_TIMEDOUT, &pc->flags)){
+ if (pc->flags & PC_FLAG_TIMEDOUT) {
#if IDESCSI_DEBUG_LOG
printk(KERN_WARNING "idescsi_pc_intr: got timed out packet %lu at %lu\n",
pc->scsi_cmd->serial_number, jiffies);
idescsi_end_request (drive, 1, 0);
return ide_stopped;
}
- if (test_and_clear_bit (PC_DMA_IN_PROGRESS, &pc->flags)) {
+ if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
+ pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
#if IDESCSI_DEBUG_LOG
printk ("ide-scsi: %s: DMA complete\n", drive->name);
#endif /* IDESCSI_DEBUG_LOG */
pc->xferred = pc->req_xfer;
- (void) HWIF(drive)->ide_dma_end(drive);
+ (void)hwif->dma_ops->dma_end(drive);
}
/* Clear the interrupt */
idescsi_end_request (drive, 1, 0);
return ide_stopped;
}
- bcount = (hwif->INB(hwif->io_ports[IDE_BCOUNTH_OFFSET]) << 8) |
- hwif->INB(hwif->io_ports[IDE_BCOUNTL_OFFSET]);
- ireason = hwif->INB(hwif->io_ports[IDE_IREASON_OFFSET]);
+ bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) |
+ hwif->INB(hwif->io_ports.lbam_addr);
+ ireason = hwif->INB(hwif->io_ports.nsect_addr);
if (ireason & CD) {
printk(KERN_ERR "ide-scsi: CoD != 0 in idescsi_pc_intr\n");
"- discarding data\n");
temp = pc->buf_size - pc->xferred;
if (temp) {
- clear_bit(PC_WRITING, &pc->flags);
+ pc->flags &= ~PC_FLAG_WRITING;
if (pc->sg)
idescsi_input_buffers(drive, pc,
temp);
else
- drive->hwif->atapi_input_bytes(drive, pc->cur_pos, temp);
+ hwif->input_data(drive, NULL,
+ pc->cur_pos, temp);
printk(KERN_ERR "ide-scsi: transferred"
" %d of %d bytes\n",
temp, bcount);
}
pc->xferred += temp;
pc->cur_pos += temp;
- ide_atapi_discard_data(drive, bcount - temp);
+ ide_pad_transfer(drive, 0, bcount - temp);
ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
return ide_started;
}
}
}
if (ireason & IO) {
- clear_bit(PC_WRITING, &pc->flags);
+ pc->flags &= ~PC_FLAG_WRITING;
if (pc->sg)
idescsi_input_buffers(drive, pc, bcount);
else
- hwif->atapi_input_bytes(drive, pc->cur_pos,
- bcount);
+ hwif->input_data(drive, NULL, pc->cur_pos, bcount);
} else {
- set_bit(PC_WRITING, &pc->flags);
+ pc->flags |= PC_FLAG_WRITING;
if (pc->sg)
idescsi_output_buffers(drive, pc, bcount);
else
- hwif->atapi_output_bytes(drive, pc->cur_pos,
- bcount);
+ hwif->output_data(drive, NULL, pc->cur_pos, bcount);
}
/* Update the current position */
pc->xferred += bcount;
"initiated yet DRQ isn't asserted\n");
return startstop;
}
- ireason = hwif->INB(hwif->io_ports[IDE_IREASON_OFFSET]);
+ ireason = hwif->INB(hwif->io_ports.nsect_addr);
if ((ireason & CD) == 0 || (ireason & IO)) {
printk(KERN_ERR "ide-scsi: (IO,CoD) != (0,1) while "
"issuing a packet command\n");
BUG_ON(HWGROUP(drive)->handler != NULL);
/* Set the interrupt routine */
ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
+
/* Send the actual packet */
- drive->hwif->atapi_output_bytes(drive, scsi->pc->c, 12);
- if (test_bit (PC_DMA_OK, &pc->flags)) {
- set_bit (PC_DMA_IN_PROGRESS, &pc->flags);
- hwif->dma_start(drive);
+ hwif->output_data(drive, NULL, scsi->pc->c, 12);
+
+ if (pc->flags & PC_FLAG_DMA_OK) {
+ pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
+ hwif->dma_ops->dma_start(drive);
}
return ide_started;
}
{
switch (pc->c[0]) {
case READ_6: case READ_10: case READ_12:
- clear_bit(PC_WRITING, &pc->flags);
+ pc->flags &= ~PC_FLAG_WRITING;
return 0;
case WRITE_6: case WRITE_10: case WRITE_12:
- set_bit(PC_WRITING, &pc->flags);
+ pc->flags |= PC_FLAG_WRITING;
return 0;
default:
return 1;
if (drive->using_dma && !idescsi_map_sg(drive, pc)) {
hwif->sg_mapped = 1;
- dma = !hwif->dma_setup(drive);
+ dma = !hwif->dma_ops->dma_setup(drive);
hwif->sg_mapped = 0;
}
- ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma);
+ ide_pktcmd_tf_load(drive, 0, bcount, dma);
if (dma)
- set_bit(PC_DMA_OK, &pc->flags);
+ pc->flags |= PC_FLAG_DMA_OK;
if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) {
ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc,
return ide_started;
} else {
/* Issue the packet command */
- hwif->OUTB(WIN_PACKETCMD, hwif->io_ports[IDE_COMMAND_OFFSET]);
+ ide_execute_pkt_cmd(drive);
return idescsi_transfer_pc(drive);
}
}
}
}
- ide_init_drive_cmd (rq);
+ blk_rq_init(NULL, rq);
rq->special = (char *) pc;
rq->cmd_type = REQ_TYPE_SPECIAL;
spin_unlock_irq(host->host_lock);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff