diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:14 +0100 |
---|---|---|
committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:14 +0100 |
commit | ac026ff254b32915bb14ba97a23b4019d137f181 (patch) | |
tree | ab5687be210c4016d16fae7a8e51bfc1c41c4c42 /drivers/ide | |
parent | 7299a3918442dc9a5abb71b9f65b1dd17637c8c0 (diff) |
ide: remove 'command_type' field from ide_task_t
* Add 'data_buf' and 'nsect' variables in ide_taskfile_ioctl()
to cache data buffer pointer and number of sectors to transfer
(this allows us to have only one ide_diag_taskfile() call).
* Add IDE_TFLAG_WRITE taskfile flag and use it to check whether
the REQ_RW request flag should be set.
* Move ->command_type handling from ide_diag_taskfile() to
ide_taskfile_ioctl() and use ->req_cmd instead of ->command_type.
* Add 'nsect' parameter to ide_raw_taskfile().
* Merge ide_diag_taskfile() into ide_raw_taskfile().
* Initialize ->data_phase explicitly in idedisk_prepare_flush(),
ide_start_power_step() and ide_disk_special().
* Remove no longer needed 'command_type' field from ide_task_t.
* Add #ifndef/#endif __KERNEL__ to <linux/hdreg.h> around no
longer used by kernel IDE_DRIVE_TASK_* and TASKFILE_* defines.
There should be no functionality changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r-- | drivers/ide/ide-disk.c | 15 | ||||
-rw-r--r-- | drivers/ide/ide-io.c | 8 | ||||
-rw-r--r-- | drivers/ide/ide-taskfile.c | 89 |
3 files changed, 55 insertions, 57 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 747dc602334..d9a4fe27685 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -516,12 +516,11 @@ static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd) tf->lbam = SMART_LCYL_PASS; tf->lbah = SMART_HCYL_PASS; tf->command = WIN_SMART; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; - args.command_type = IDE_DRIVE_TASK_IN; - args.data_phase = TASKFILE_IN; - args.handler = &task_in_intr; + args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.data_phase = TASKFILE_IN; + args.handler = task_in_intr; (void) smart_enable(drive); - return ide_raw_taskfile(drive, &args, buf); + return ide_raw_taskfile(drive, &args, buf, 1); } static int proc_idedisk_read_cache @@ -607,9 +606,9 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) task.tf.command = WIN_FLUSH_CACHE_EXT; else task.tf.command = WIN_FLUSH_CACHE; - task.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; - task.command_type = IDE_DRIVE_TASK_NO_DATA; - task.handler = task_no_data_intr; + task.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + task.data_phase = TASKFILE_NO_DATA; + task.handler = task_no_data_intr; rq->cmd_type = REQ_TYPE_ATA_TASKFILE; rq->cmd_flags |= REQ_SOFTBARRIER; diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 6ee7458d34e..f4f7e3db10a 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -232,9 +232,9 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * return ide_stopped; out_do_tf: - args->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; - args->command_type = IDE_DRIVE_TASK_NO_DATA; - args->handler = task_no_data_intr; + args->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args->data_phase = TASKFILE_NO_DATA; + args->handler = task_no_data_intr; return do_rw_taskfile(drive, args); } @@ -672,7 +672,7 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive) ide_task_t args; memset(&args, 0, sizeof(ide_task_t)); - args.command_type = IDE_DRIVE_TASK_NO_DATA; + args.data_phase = TASKFILE_NO_DATA; if (s->b.set_geometry) { s->b.set_geometry = 0; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 7c8e9802898..ff28449bbca 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -126,11 +126,10 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf) args.tf.command = WIN_IDENTIFY; else args.tf.command = WIN_PIDENTIFY; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; - args.command_type = IDE_DRIVE_TASK_IN; - args.data_phase = TASKFILE_IN; - args.handler = &task_in_intr; - return ide_raw_taskfile(drive, &args, buf); + args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.data_phase = TASKFILE_IN; + args.handler = task_in_intr; + return ide_raw_taskfile(drive, &args, buf, 1); } static int inline task_dma_ok(ide_task_t *task) @@ -499,7 +498,7 @@ ide_startstop_t pre_task_out_intr (ide_drive_t *drive, struct request *rq) } EXPORT_SYMBOL(pre_task_out_intr); -static int ide_diag_taskfile(ide_drive_t *drive, ide_task_t *args, unsigned long data_size, u8 *buf) +int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect) { struct request rq; @@ -514,44 +513,26 @@ static int ide_diag_taskfile(ide_drive_t *drive, ide_task_t *args, unsigned long * if we would find a solution to transfer any size. * To support special commands like READ LONG. */ - if (args->command_type != IDE_DRIVE_TASK_NO_DATA) { - if (data_size == 0) - rq.nr_sectors = (args->tf.hob_nsect << 8) | args->tf.nsect; - else - rq.nr_sectors = data_size / SECTOR_SIZE; - - if (!rq.nr_sectors) { - printk(KERN_ERR "%s: in/out command without data\n", - drive->name); - return -EFAULT; - } + rq.hard_nr_sectors = rq.nr_sectors = nsect; + rq.hard_cur_sectors = rq.current_nr_sectors = nsect; - rq.hard_nr_sectors = rq.nr_sectors; - rq.hard_cur_sectors = rq.current_nr_sectors = rq.nr_sectors; + if (task->tf_flags & IDE_TFLAG_WRITE) + rq.cmd_flags |= REQ_RW; - if (args->command_type == IDE_DRIVE_TASK_RAW_WRITE) - rq.cmd_flags |= REQ_RW; - } + rq.special = task; + task->rq = &rq; - rq.special = args; - args->rq = &rq; return ide_do_drive_cmd(drive, &rq, ide_wait); } -int ide_raw_taskfile (ide_drive_t *drive, ide_task_t *args, u8 *buf) -{ - return ide_diag_taskfile(drive, args, 0, buf); -} - EXPORT_SYMBOL(ide_raw_taskfile); int ide_no_data_taskfile(ide_drive_t *drive, ide_task_t *task) { - task->command_type = IDE_DRIVE_TASK_NO_DATA; - task->data_phase = TASKFILE_NO_DATA; - task->handler = task_no_data_intr; + task->data_phase = TASKFILE_NO_DATA; + task->handler = task_no_data_intr; - return ide_raw_taskfile(drive, task, NULL); + return ide_raw_taskfile(drive, task, NULL, 0); } EXPORT_SYMBOL_GPL(ide_no_data_taskfile); @@ -562,10 +543,12 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) ide_task_t args; u8 *outbuf = NULL; u8 *inbuf = NULL; + u8 *data_buf = NULL; int err = 0; int tasksize = sizeof(struct ide_task_request_s); unsigned int taskin = 0; unsigned int taskout = 0; + u16 nsect = 0; u8 io_32bit = drive->io_32bit; char __user *buf = (char __user *)arg; @@ -618,7 +601,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) memcpy(&args.tf_array[6], req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE); args.tf_in_flags = req_task->in_flags; args.data_phase = req_task->data_phase; - args.command_type = req_task->req_cmd; args.tf_flags = IDE_TFLAG_OUT_DEVICE; if (drive->addressing == 1) @@ -657,14 +639,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) drive->io_32bit = 0; switch(req_task->data_phase) { - case TASKFILE_OUT_DMAQ: - case TASKFILE_OUT_DMA: - err = ide_diag_taskfile(drive, &args, taskout, outbuf); - break; - case TASKFILE_IN_DMAQ: - case TASKFILE_IN_DMA: - err = ide_diag_taskfile(drive, &args, taskin, inbuf); - break; case TASKFILE_MULTI_OUT: if (!drive->mult_count) { /* (hs): give up if multcount is not set */ @@ -678,7 +652,11 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) case TASKFILE_OUT: args.prehandler = &pre_task_out_intr; args.handler = &task_out_intr; - err = ide_diag_taskfile(drive, &args, taskout, outbuf); + /* fall through */ + case TASKFILE_OUT_DMAQ: + case TASKFILE_OUT_DMA: + nsect = taskout / SECTOR_SIZE; + data_buf = outbuf; break; case TASKFILE_MULTI_IN: if (!drive->mult_count) { @@ -692,17 +670,38 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) /* fall through */ case TASKFILE_IN: args.handler = &task_in_intr; - err = ide_diag_taskfile(drive, &args, taskin, inbuf); + /* fall through */ + case TASKFILE_IN_DMAQ: + case TASKFILE_IN_DMA: + nsect = taskin / SECTOR_SIZE; + data_buf = inbuf; break; case TASKFILE_NO_DATA: args.handler = &task_no_data_intr; - err = ide_diag_taskfile(drive, &args, 0, NULL); break; default: err = -EFAULT; goto abort; } + if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA) + nsect = 0; + else if (!nsect) { + nsect = (args.tf.hob_nsect << 8) | args.tf.nsect; + + if (!nsect) { + printk(KERN_ERR "%s: in/out command without data\n", + drive->name); + err = -EFAULT; + goto abort; + } + } + + if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE) + args.tf_flags |= IDE_TFLAG_WRITE; + + err = ide_raw_taskfile(drive, &args, data_buf, nsect); + memcpy(req_task->hob_ports, &args.tf_array[0], HDIO_DRIVE_HOB_HDR_SIZE - 2); memcpy(req_task->io_ports, &args.tf_array[6], HDIO_DRIVE_TASK_HDR_SIZE); req_task->in_flags = args.tf_in_flags; |