/*
- * linux/drivers/ide/ide-taskfile.c Version 0.38 March 05, 2003
- *
- * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
- * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2001-2002 Klaus Smolin
+ * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
+ * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2001-2002 Klaus Smolin
* IBM Storage Technology Division
- * Copyright (C) 2003-2004 Bartlomiej Zolnierkiewicz
+ * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz
*
* The big the bad and the ugly.
*/
#include <asm/uaccess.h>
#include <asm/io.h>
-static void ata_bswap_data (void *buffer, int wcount)
-{
- u16 *p = buffer;
-
- while (wcount--) {
- *p = *p << 8 | *p >> 8; p++;
- *p = *p << 8 | *p >> 8; p++;
- }
-}
-
-static void taskfile_input_data(ide_drive_t *drive, void *buffer, u32 wcount)
-{
- HWIF(drive)->ata_input_data(drive, buffer, wcount);
- if (drive->bswap)
- ata_bswap_data(buffer, wcount);
-}
-
-static void taskfile_output_data(ide_drive_t *drive, void *buffer, u32 wcount)
-{
- if (drive->bswap) {
- ata_bswap_data(buffer, wcount);
- HWIF(drive)->ata_output_data(drive, buffer, wcount);
- ata_bswap_data(buffer, wcount);
- } else {
- HWIF(drive)->ata_output_data(drive, buffer, wcount);
- }
-}
-
void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = drive->hwif;
"lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
drive->name, tf->feature, tf->nsect, tf->lbal,
tf->lbam, tf->lbah, tf->device, tf->command);
+ printk("%s: hob: nsect 0x%02x lbal 0x%02x "
+ "lbam 0x%02x lbah 0x%02x\n",
+ drive->name, tf->hob_nsect, tf->hob_lbal,
+ tf->hob_lbam, tf->hob_lbah);
#endif
- if (IDE_CONTROL_REG)
- hwif->OUTB(drive->ctl, IDE_CONTROL_REG); /* clear nIEN */
+ ide_set_irq(drive, 1);
if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0)
SELECT_MASK(drive, 0);
hwif->OUTB((tf->device & HIHI) | drive->select.all, IDE_SELECT_REG);
}
-EXPORT_SYMBOL_GPL(ide_tf_load);
-
int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
{
ide_task_t args;
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_TF | IDE_TFLAG_DEVICE;
+ args.data_phase = TASKFILE_IN;
+ return ide_raw_taskfile(drive, &args, buf, 1);
}
static int inline task_dma_ok(ide_task_t *task)
{
- if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ if (blk_fs_request(task->rq) || (task->tf_flags & IDE_TFLAG_FLAGGED))
return 1;
switch (task->tf.command) {
return 0;
}
+static ide_startstop_t task_no_data_intr(ide_drive_t *);
+static ide_startstop_t set_geometry_intr(ide_drive_t *);
+static ide_startstop_t recal_intr(ide_drive_t *);
+static ide_startstop_t set_multmode_intr(ide_drive_t *);
+static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
+static ide_startstop_t task_in_intr(ide_drive_t *);
+
ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = HWIF(drive);
struct ide_taskfile *tf = &task->tf;
+ ide_handler_t *handler = NULL;
- ide_tf_load(drive, task);
-
- if (task->handler != NULL) {
- if (task->prehandler != NULL) {
- hwif->OUTBSYNC(drive, tf->command, IDE_COMMAND_REG);
- ndelay(400); /* FIXME */
- return task->prehandler(drive, task->rq);
+ if (task->data_phase == TASKFILE_MULTI_IN ||
+ task->data_phase == TASKFILE_MULTI_OUT) {
+ if (!drive->mult_count) {
+ printk(KERN_ERR "%s: multimode not set!\n",
+ drive->name);
+ return ide_stopped;
}
- ide_execute_command(drive, tf->command, task->handler, WAIT_WORSTCASE, NULL);
- return ide_started;
}
- if (task_dma_ok(task) && drive->using_dma && !hwif->dma_setup(drive)) {
+ if (task->tf_flags & IDE_TFLAG_FLAGGED)
+ task->tf_flags |= IDE_TFLAG_FLAGGED_SET_IN_FLAGS;
+
+ if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0)
+ ide_tf_load(drive, task);
+
+ switch (task->data_phase) {
+ case TASKFILE_MULTI_OUT:
+ case TASKFILE_OUT:
+ hwif->OUTBSYNC(drive, tf->command, IDE_COMMAND_REG);
+ ndelay(400); /* FIXME */
+ return pre_task_out_intr(drive, task->rq);
+ case TASKFILE_MULTI_IN:
+ case TASKFILE_IN:
+ handler = task_in_intr;
+ /* fall-through */
+ case TASKFILE_NO_DATA:
+ if (handler == NULL)
+ handler = task_no_data_intr;
+ /* WIN_{SPECIFY,RESTORE,SETMULT} use custom handlers */
+ if (task->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) {
+ switch (tf->command) {
+ case WIN_SPECIFY: handler = set_geometry_intr; break;
+ case WIN_RESTORE: handler = recal_intr; break;
+ case WIN_SETMULT: handler = set_multmode_intr; break;
+ }
+ }
+ ide_execute_command(drive, tf->command, handler,
+ WAIT_WORSTCASE, NULL);
+ return ide_started;
+ default:
+ if (task_dma_ok(task) == 0 || drive->using_dma == 0 ||
+ hwif->dma_setup(drive))
+ return ide_stopped;
hwif->dma_exec_cmd(drive, tf->command);
hwif->dma_start(drive);
return ide_started;
}
-
- return ide_stopped;
}
+EXPORT_SYMBOL_GPL(do_rw_taskfile);
/*
* set_multmode_intr() is invoked on completion of a WIN_SETMULT cmd.
*/
-ide_startstop_t set_multmode_intr (ide_drive_t *drive)
+static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 stat;
+ u8 stat = ide_read_status(drive);
- if (OK_STAT(stat = hwif->INB(IDE_STATUS_REG),READY_STAT,BAD_STAT)) {
+ if (OK_STAT(stat, READY_STAT, BAD_STAT))
drive->mult_count = drive->mult_req;
- } else {
+ else {
drive->mult_req = drive->mult_count = 0;
drive->special.b.recalibrate = 1;
(void) ide_dump_status(drive, "set_multmode", stat);
/*
* set_geometry_intr() is invoked on completion of a WIN_SPECIFY cmd.
*/
-ide_startstop_t set_geometry_intr (ide_drive_t *drive)
+static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
int retries = 5;
u8 stat;
- while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--)
+ while (((stat = ide_read_status(drive)) & BUSY_STAT) && retries--)
udelay(10);
if (OK_STAT(stat, READY_STAT, BAD_STAT))
/*
* recal_intr() is invoked on completion of a WIN_RESTORE (recalibrate) cmd.
*/
-ide_startstop_t recal_intr (ide_drive_t *drive)
+static ide_startstop_t recal_intr(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 stat;
+ u8 stat = ide_read_status(drive);
- if (!OK_STAT(stat = hwif->INB(IDE_STATUS_REG), READY_STAT, BAD_STAT))
+ if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "recal_intr", stat);
return ide_stopped;
}
/*
* Handler for commands without a data phase
*/
-ide_startstop_t task_no_data_intr (ide_drive_t *drive)
+static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
{
ide_task_t *args = HWGROUP(drive)->rq->special;
- ide_hwif_t *hwif = HWIF(drive);
u8 stat;
local_irq_enable_in_hardirq();
- if (!OK_STAT(stat = hwif->INB(IDE_STATUS_REG),READY_STAT,BAD_STAT)) {
+ stat = ide_read_status(drive);
+
+ if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "task_no_data_intr", stat);
/* calls ide_end_drive_cmd */
- }
+
if (args)
- ide_end_drive_cmd(drive, stat, hwif->INB(IDE_ERROR_REG));
+ ide_end_drive_cmd(drive, stat, ide_read_error(drive));
return ide_stopped;
}
static u8 wait_drive_not_busy(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
int retries;
u8 stat;
/*
* Last sector was transfered, wait until drive is ready.
- * This can take up to 10 usec, but we will wait max 1 ms
- * (drive_cmd_intr() waits that long).
+ * This can take up to 10 usec, but we will wait max 1 ms.
*/
for (retries = 0; retries < 100; retries++) {
- if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT)
+ stat = ide_read_status(drive);
+
+ if (stat & BUSY_STAT)
udelay(10);
else
break;
/* do the actual data transfer */
if (write)
- taskfile_output_data(drive, buf, SECTOR_WORDS);
+ hwif->ata_output_data(drive, buf, SECTOR_WORDS);
else
- taskfile_input_data(drive, buf, SECTOR_WORDS);
+ hwif->ata_input_data(drive, buf, SECTOR_WORDS);
kunmap_atomic(buf, KM_BIO_SRC_IRQ);
#ifdef CONFIG_HIGHMEM
static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
unsigned int write)
{
+ u8 saved_io_32bit = drive->io_32bit;
+
if (rq->bio) /* fs request */
rq->errors = 0;
+ if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
+ ide_task_t *task = rq->special;
+
+ if (task->tf_flags & IDE_TFLAG_IO_16BIT)
+ drive->io_32bit = 0;
+ }
+
touch_softlockup_watchdog();
switch (drive->hwif->data_phase) {
ide_pio_sector(drive, write);
break;
}
+
+ drive->io_32bit = saved_io_32bit;
}
static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
return ide_error(drive, s, stat);
}
-static void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
+void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
{
- HWIF(drive)->cursg = NULL;
-
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
- ide_task_t *task = rq->special;
+ u8 err = ide_read_error(drive);
- if (task->tf_flags & IDE_TFLAG_FLAGGED) {
- u8 err = drive->hwif->INB(IDE_ERROR_REG);
- ide_end_drive_cmd(drive, stat, err);
- return;
- }
+ ide_end_drive_cmd(drive, stat, err);
+ return;
}
if (rq->rq_disk) {
ide_driver_t *drv;
drv = *(ide_driver_t **)rq->rq_disk->private_data;;
- drv->end_request(drive, 1, rq->hard_nr_sectors);
+ drv->end_request(drive, 1, rq->nr_sectors);
} else
- ide_end_request(drive, 1, rq->hard_nr_sectors);
+ ide_end_request(drive, 1, rq->nr_sectors);
+}
+
+/*
+ * We got an interrupt on a task_in case, but no errors and no DRQ.
+ *
+ * It might be a spurious irq (shared irq), but it might be a
+ * command that had no output.
+ */
+static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
+{
+ /* Command all done? */
+ if (OK_STAT(stat, READY_STAT, BUSY_STAT)) {
+ task_end_request(drive, rq, stat);
+ return ide_stopped;
+ }
+
+ /* Assume it was a spurious irq */
+ ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
+ return ide_started;
}
/*
* Handler for command with PIO data-in phase (Read/Read Multiple).
*/
-ide_startstop_t task_in_intr (ide_drive_t *drive)
+static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
- u8 stat = hwif->INB(IDE_STATUS_REG);
+ u8 stat = ide_read_status(drive);
- /* new way for dealing with premature shared PCI interrupts */
- if (!OK_STAT(stat, DATA_READY, BAD_R_STAT)) {
- if (stat & (ERR_STAT | DRQ_STAT))
- return task_error(drive, rq, __FUNCTION__, stat);
- /* No data yet, so wait for another IRQ. */
- ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
- return ide_started;
- }
+ /* Error? */
+ if (stat & ERR_STAT)
+ return task_error(drive, rq, __FUNCTION__, stat);
+
+ /* Didn't want any data? Odd. */
+ if (!(stat & DRQ_STAT))
+ return task_in_unexpected(drive, rq, stat);
ide_pio_datablock(drive, rq, 0);
- /* If it was the last datablock check status and finish transfer. */
+ /* Are we done? Check status and finish transfer. */
if (!hwif->nleft) {
stat = wait_drive_not_busy(drive);
- if (!OK_STAT(stat, 0, BAD_R_STAT))
+ if (!OK_STAT(stat, 0, BAD_STAT))
return task_error(drive, rq, __FUNCTION__, stat);
task_end_request(drive, rq, stat);
return ide_stopped;
return ide_started;
}
-EXPORT_SYMBOL(task_in_intr);
/*
* Handler for command with PIO data-out phase (Write/Write Multiple).
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
- u8 stat = hwif->INB(IDE_STATUS_REG);
+ u8 stat = ide_read_status(drive);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __FUNCTION__, stat);
return ide_started;
}
-ide_startstop_t pre_task_out_intr (ide_drive_t *drive, struct request *rq)
+static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
{
ide_startstop_t startstop;
- if (ide_wait_stat(&startstop, drive, DATA_READY,
+ if (ide_wait_stat(&startstop, drive, DRQ_STAT,
drive->bad_wstat, WAIT_DRQ)) {
printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
drive->name,
return ide_started;
}
-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;
* 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;
- return ide_raw_taskfile(drive, task, NULL);
+ return ide_raw_taskfile(drive, task, NULL, 0);
}
EXPORT_SYMBOL_GPL(ide_no_data_taskfile);
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;
- u8 io_32bit = drive->io_32bit;
+ u16 nsect = 0;
char __user *buf = (char __user *)arg;
// printk("IDE Taskfile ...\n");
memcpy(&args.tf_array[0], req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2);
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;
+ args.data_phase = req_task->data_phase;
+
+ args.tf_flags = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
+ IDE_TFLAG_IN_TF;
if (drive->addressing == 1)
- args.tf_flags |= IDE_TFLAG_LBA48;
+ args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB);
if (req_task->out_flags.all) {
args.tf_flags |= IDE_TFLAG_FLAGGED;
args.tf_flags |= IDE_TFLAG_OUT_HOB;
}
- drive->io_32bit = 0;
+ if (req_task->in_flags.b.data)
+ args.tf_flags |= IDE_TFLAG_IN_DATA;
+
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 */
}
/* fall through */
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) {
}
/* 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;
+
+ if ((args.tf_flags & IDE_TFLAG_FLAGGED_SET_IN_FLAGS) &&
+ req_task->in_flags.all == 0) {
+ req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
+ if (drive->addressing == 1)
+ req_task->in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8);
+ }
if (copy_to_user(buf, req_task, tasksize)) {
err = -EFAULT;
// printk("IDE Taskfile ioctl ended. rc = %i\n", err);
- drive->io_32bit = io_32bit;
-
return err;
}
#endif
-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.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;
+ struct hd_driveid *id = drive->id;
if (NULL == (void *) arg) {
struct request rq;
+
ide_init_drive_cmd(&rq);
+ rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+
return ide_do_drive_cmd(drive, &rq, ide_wait);
}
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)) {
+
+ if (tf->command == WIN_SETFEATURES &&
+ tf->feature == SETFEATURES_XFER &&
+ tf->nsect >= XFER_SW_DMA_0 &&
+ (id->dma_ultra || id->dma_mword || id->dma_1word)) {
xfer_rate = args[1];
- if (ide_ata66_check(drive, &tfargs))
+ if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) {
+ printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
+ "be set\n", drive->name);
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 */
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;
}
-static int ide_wait_cmd_task(ide_drive_t *drive, u8 *buf)
-{
- struct request rq;
-
- ide_init_drive_cmd(&rq);
- rq.cmd_type = REQ_TYPE_ATA_TASK;
- rq.buffer = buf;
- return ide_do_drive_cmd(drive, &rq, ide_wait);
-}
-
int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
{
void __user *p = (void __user *)arg;
int err = 0;
- u8 args[7], *argbuf = args;
- int argsize = 7;
+ u8 args[7];
+ ide_task_t task;
if (copy_from_user(args, p, 7))
return -EFAULT;
- err = ide_wait_cmd_task(drive, argbuf);
- if (copy_to_user(p, argbuf, argsize))
- err = -EFAULT;
- return err;
-}
-/*
- * NOTICE: This is additions from IBM to provide a discrete interface,
- * for selective taskregister access operations. Nice JOB Klaus!!!
- * Glad to be able to work and co-develop this with you and IBM.
- */
-ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
-{
- if (task->data_phase == TASKFILE_MULTI_IN ||
- task->data_phase == TASKFILE_MULTI_OUT) {
- if (!drive->mult_count) {
- printk(KERN_ERR "%s: multimode not set!\n", drive->name);
- return ide_stopped;
- }
- }
+ 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;
- /*
- * (ks) Check taskfile in flags.
- * If set, then execute as it is defined.
- * If not set, then define default settings.
- * The default values are:
- * read all taskfile registers (except data)
- * read the hob registers (sector, nsector, lcyl, hcyl)
- */
- if (task->tf_in_flags.all == 0) {
- task->tf_in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
- if (drive->addressing == 1)
- task->tf_in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8);
- }
+ err = ide_no_data_taskfile(drive, &task);
- return do_rw_taskfile(drive, task);
+ args[0] = task.tf.command;
+ memcpy(&args[1], &task.tf_array[7], 6);
+
+ if (copy_to_user(p, args, 7))
+ err = -EFAULT;
+
+ return err;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff