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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-13 21:39:32 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-13 21:39:32 +0200
commitbaf08f0be6d986521bb2fbdc7af51fc4847da734 (patch)
tree5ac765703ad79edeafc6eec39fe42850bd6b5dc6 /drivers/ide/ide-atapi.c
parentaa5d2de7b080873f6d9ac3aede423c9713bf0caa (diff)
downloadop-kernel-dev-baf08f0be6d986521bb2fbdc7af51fc4847da734.zip
op-kernel-dev-baf08f0be6d986521bb2fbdc7af51fc4847da734.tar.gz
ide: make ide_transfer_pc() static
* Move ->ticks field from struct ide_floppy_obj to ide_drive_t. * Move idefloppy_transfer_pc() to ide-atapi.c and make ide_transfer_pc() use it. * Always use ide_transfer_pc as a handler in ide_issue_pc(). * Remove no longer used idefloppy_start_pc_transfer(), ide*_transfer_pc() and 'handler' argument from ide_issue_pc(). * Make ide_transfer_pc() static. While at it: * idefloppy_transfer_pc() -> ide_delayed_transfer_pc() * IDEFLOPPY_TICKS_DELAY -> IDEFLOPPY_PC_DELAY * ->ticks -> ->pc_delay There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-atapi.c')
-rw-r--r--drivers/ide/ide-atapi.c41
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index b558663..2521677 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -468,12 +468,22 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason)
return ireason;
}
-ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout,
- ide_expiry_t *expiry)
+static int ide_delayed_transfer_pc(ide_drive_t *drive)
+{
+ /* Send the actual packet */
+ drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12);
+
+ /* Timeout for the packet command */
+ return WAIT_FLOPPY_CMD;
+}
+
+static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
{
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->hwgroup->rq;
+ ide_expiry_t *expiry;
+ unsigned int timeout;
ide_startstop_t startstop;
u8 ireason;
@@ -493,6 +503,25 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout,
return ide_do_reset(drive);
}
+ /*
+ * If necessary schedule the packet transfer to occur 'timeout'
+ * miliseconds later in ide_delayed_transfer_pc() after the device
+ * says it's ready for a packet.
+ */
+ if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) {
+ timeout = drive->pc_delay;
+ expiry = &ide_delayed_transfer_pc;
+ } else {
+ if (drive->scsi) {
+ timeout = ide_scsi_get_timeout(pc);
+ expiry = ide_scsi_expiry;
+ } else {
+ timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD
+ : WAIT_TAPE_CMD;
+ expiry = NULL;
+ }
+ }
+
/* Set the interrupt routine */
ide_set_handler(drive, ide_pc_intr, timeout, expiry);
@@ -508,10 +537,8 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout,
return ide_started;
}
-EXPORT_SYMBOL_GPL(ide_transfer_pc);
-ide_startstop_t ide_issue_pc(ide_drive_t *drive,
- ide_handler_t *handler, unsigned int timeout,
+ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
ide_expiry_t *expiry)
{
struct ide_atapi_pc *pc = drive->pc;
@@ -550,12 +577,12 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive,
/* Issue the packet command */
if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
- ide_execute_command(drive, ATA_CMD_PACKET, handler,
+ ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
timeout, NULL);
return ide_started;
} else {
ide_execute_pkt_cmd(drive);
- return (*handler)(drive);
+ return ide_transfer_pc(drive);
}
}
EXPORT_SYMBOL_GPL(ide_issue_pc);
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