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path: root/drivers/ide/ide-ioctls.c
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Diffstat (limited to 'drivers/ide/ide-ioctls.c')
-rw-r--r--drivers/ide/ide-ioctls.c77
1 files changed, 36 insertions, 41 deletions
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 1be263eb9c0..6233fa2cb8a 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -2,8 +2,10 @@
* IDE ioctls handling.
*/
+#include <linux/export.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
+#include <linux/slab.h>
static const struct ide_ioctl_devset ide_ioctl_settings[] = {
{ HDIO_GET_32BIT, HDIO_SET_32BIT, &ide_devset_io_32bit },
@@ -64,7 +66,8 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
goto out;
}
- id = kmalloc(size, GFP_KERNEL);
+ /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */
+ id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
if (id == NULL) {
rc = -ENOMEM;
goto out;
@@ -111,14 +114,13 @@ static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
return 0;
}
-static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
+static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
{
u8 *buf = NULL;
int bufsize = 0, err = 0;
u8 args[4], xfer_rate = 0;
- ide_task_t tfargs;
- struct ide_taskfile *tf = &tfargs.tf;
- u16 *id = drive->id;
+ struct ide_cmd cmd;
+ struct ide_taskfile *tf = &cmd.tf;
if (NULL == (void *) arg) {
struct request *rq;
@@ -134,24 +136,25 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
if (copy_from_user(args, (void __user *)arg, 4))
return -EFAULT;
- memset(&tfargs, 0, sizeof(ide_task_t));
+ memset(&cmd, 0, sizeof(cmd));
tf->feature = args[2];
if (args[0] == ATA_CMD_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;
+ tf->lbam = ATA_SMART_LBAM_PASS;
+ tf->lbah = ATA_SMART_LBAH_PASS;
+ cmd.valid.out.tf = IDE_VALID_OUT_TF;
+ cmd.valid.in.tf = IDE_VALID_NSECT;
} else {
tf->nsect = args[1];
- tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE |
- IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT;
+ cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT;
+ cmd.valid.in.tf = IDE_VALID_NSECT;
}
tf->command = args[0];
- tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA;
+ cmd.protocol = args[3] ? ATA_PROT_PIO : ATA_PROT_NODATA;
if (args[3]) {
- tfargs.tf_flags |= IDE_TFLAG_IO_16BIT;
+ cmd.tf_flags |= IDE_TFLAG_IO_16BIT;
bufsize = SECTOR_SIZE * args[3];
buf = kzalloc(bufsize, GFP_KERNEL);
if (buf == NULL)
@@ -160,29 +163,21 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
if (tf->command == ATA_CMD_SET_FEATURES &&
tf->feature == SETFEATURES_XFER &&
- tf->nsect >= XFER_SW_DMA_0 &&
- (id[ATA_ID_UDMA_MODES] ||
- id[ATA_ID_MWDMA_MODES] ||
- id[ATA_ID_SWDMA_MODES])) {
- xfer_rate = args[1];
- if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) {
- printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
- "be set\n", drive->name);
+ tf->nsect >= XFER_SW_DMA_0) {
+ xfer_rate = ide_find_dma_mode(drive, tf->nsect);
+ if (xfer_rate != tf->nsect) {
+ err = -EINVAL;
goto abort;
}
+
+ cmd.tf_flags |= IDE_TFLAG_SET_XFER;
}
- err = ide_raw_taskfile(drive, &tfargs, buf, args[3]);
+ err = ide_raw_taskfile(drive, &cmd, buf, args[3]);
args[0] = tf->status;
args[1] = tf->error;
args[2] = tf->nsect;
-
- if (!err && xfer_rate) {
- /* active-retuning-calls future */
- ide_set_xfer_rate(drive, xfer_rate);
- ide_driveid_update(drive);
- }
abort:
if (copy_to_user((void __user *)arg, &args, 4))
err = -EFAULT;
@@ -194,25 +189,26 @@ abort:
return err;
}
-static int ide_task_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
+static int ide_task_ioctl(ide_drive_t *drive, unsigned long arg)
{
void __user *p = (void __user *)arg;
int err = 0;
u8 args[7];
- ide_task_t task;
+ struct ide_cmd cmd;
if (copy_from_user(args, p, 7))
return -EFAULT;
- memset(&task, 0, sizeof(task));
- memcpy(&task.tf_array[7], &args[1], 6);
- task.tf.command = args[0];
- task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+ memset(&cmd, 0, sizeof(cmd));
+ memcpy(&cmd.tf.feature, &args[1], 6);
+ cmd.tf.command = args[0];
+ cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
+ cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
- err = ide_no_data_taskfile(drive, &task);
+ err = ide_no_data_taskfile(drive, &cmd);
- args[0] = task.tf.command;
- memcpy(&args[1], &task.tf_array[7], 6);
+ args[0] = cmd.tf.command;
+ memcpy(&args[1], &cmd.tf.feature, 6);
if (copy_to_user(p, args, 7))
err = -EFAULT;
@@ -229,7 +225,6 @@ static int generic_drive_reset(ide_drive_t *drive)
rq->cmd_type = REQ_TYPE_SPECIAL;
rq->cmd_len = 1;
rq->cmd[0] = REQ_DRIVE_RESET;
- rq->cmd_flags |= REQ_SOFTBARRIER;
if (blk_execute_rq(drive->queue, NULL, rq, 1))
ret = rq->errors;
blk_put_request(rq);
@@ -262,17 +257,17 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
return -EACCES;
if (drive->media == ide_disk)
- return ide_taskfile_ioctl(drive, cmd, arg);
+ return ide_taskfile_ioctl(drive, arg);
return -ENOMSG;
#endif
case HDIO_DRIVE_CMD:
if (!capable(CAP_SYS_RAWIO))
return -EACCES;
- return ide_cmd_ioctl(drive, cmd, arg);
+ return ide_cmd_ioctl(drive, arg);
case HDIO_DRIVE_TASK:
if (!capable(CAP_SYS_RAWIO))
return -EACCES;
- return ide_task_ioctl(drive, cmd, arg);
+ return ide_task_ioctl(drive, arg);
case HDIO_DRIVE_RESET:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 13:16:15 +0000