diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 20:13:13 +0100 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 20:13:13 +0100 |
commit | 5a9e77af970f14a94482a6d4dca5c48efb70deb2 (patch) | |
tree | de3ad64511e39ec9fb8ac8411f7a5469d9e70cd0 /drivers/ide/ide-taskfile.c | |
parent | 34f5d5ae35240a11846875d76eb935875ab0c366 (diff) |
ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requests
Based on the earlier work by Tejun Heo.
There should be no functionality changes caused by this patch.
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-taskfile.c')
-rw-r--r-- | drivers/ide/ide-taskfile.c | 63 |
1 files changed, 31 insertions, 32 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index a1796cf5835..5eb6fa15dc4 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -750,31 +750,11 @@ abort: } #endif -static int ide_wait_cmd(ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, - u8 sectors, u8 *buf) -{ - struct request rq; - u8 buffer[4]; - - if (!buf) - buf = buffer; - memset(buf, 0, 4 + SECTOR_WORDS * 4 * sectors); - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_CMD; - rq.buffer = buf; - *buf++ = cmd; - *buf++ = nsect; - *buf++ = feature; - *buf++ = sectors; - return ide_do_drive_cmd(drive, &rq, ide_wait); -} - int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) { - int err = 0; - u8 args[4], *argbuf = args; - u8 xfer_rate = 0; - int argsize = 4; + u8 *buf = NULL; + int bufsize = 0, err = 0; + u8 args[4], xfer_rate = 0; ide_task_t tfargs; struct ide_taskfile *tf = &tfargs.tf; @@ -792,23 +772,39 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) memset(&tfargs, 0, sizeof(ide_task_t)); tf->feature = args[2]; - tf->nsect = args[3]; - tf->lbal = args[1]; + if (args[0] == WIN_SMART) { + tf->nsect = args[3]; + tf->lbal = args[1]; + tf->lbam = 0x4f; + tf->lbah = 0xc2; + tfargs.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT; + } else { + tf->nsect = args[1]; + tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE | + IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT; + } tf->command = args[0]; + tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA; if (args[3]) { - argsize = 4 + (SECTOR_WORDS * 4 * args[3]); - argbuf = kzalloc(argsize, GFP_KERNEL); - if (argbuf == NULL) + tfargs.tf_flags |= IDE_TFLAG_IO_16BIT; + bufsize = SECTOR_WORDS * 4 * args[3]; + buf = kzalloc(bufsize, GFP_KERNEL); + if (buf == NULL) return -ENOMEM; } + if (set_transfer(drive, &tfargs)) { xfer_rate = args[1]; if (ide_ata66_check(drive, &tfargs)) goto abort; } - err = ide_wait_cmd(drive, args[0], args[1], args[2], args[3], argbuf); + err = ide_raw_taskfile(drive, &tfargs, buf, args[3]); + + args[0] = tf->status; + args[1] = tf->error; + args[2] = tf->nsect; if (!err && xfer_rate) { /* active-retuning-calls future */ @@ -816,10 +812,13 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) ide_driveid_update(drive); } abort: - if (copy_to_user((void __user *)arg, argbuf, argsize)) + if (copy_to_user((void __user *)arg, &args, 4)) err = -EFAULT; - if (argsize > 4) - kfree(argbuf); + if (buf) { + if (copy_to_user((void __user *)(arg + 4), buf, bufsize)) + err = -EFAULT; + kfree(buf); + } return err; } |