#include <linux/ide.h>
#include <linux/bitops.h>
-static const char *udma_str[] =
- { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
- "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
-static const char *mwdma_str[] =
- { "MWDMA0", "MWDMA1", "MWDMA2" };
-static const char *swdma_str[] =
- { "SWDMA0", "SWDMA1", "SWDMA2" };
-static const char *pio_str[] =
- { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
-
-/**
- * ide_xfer_verbose - return IDE mode names
- * @mode: transfer mode
- *
- * Returns a constant string giving the name of the mode
- * requested.
- */
-
-const char *ide_xfer_verbose(u8 mode)
-{
- const char *s;
- u8 i = mode & 0xf;
-
- if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
- s = udma_str[i];
- else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
- s = mwdma_str[i];
- else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
- s = swdma_str[i];
- else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
- s = pio_str[i & 0x7];
- else if (mode == XFER_PIO_SLOW)
- s = "PIO SLOW";
- else
- s = "XFER ERROR";
-
- return s;
-}
-EXPORT_SYMBOL(ide_xfer_verbose);
-
-/**
- * ide_rate_filter - filter transfer mode
- * @drive: IDE device
- * @speed: desired speed
- *
- * Given the available transfer modes this function returns
- * the best available speed at or below the speed requested.
- *
- * TODO: check device PIO capabilities
- */
-
-static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
-{
- ide_hwif_t *hwif = drive->hwif;
- u8 mode = ide_find_dma_mode(drive, speed);
-
- if (mode == 0) {
- if (hwif->pio_mask)
- mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
- else
- mode = XFER_PIO_4;
- }
-
-/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
-
- return min(speed, mode);
-}
-
-/**
- * ide_get_best_pio_mode - get PIO mode from drive
- * @drive: drive to consider
- * @mode_wanted: preferred mode
- * @max_mode: highest allowed mode
- *
- * This routine returns the recommended PIO settings for a given drive,
- * based on the drive->id information and the ide_pio_blacklist[].
- *
- * Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
- * This is used by most chipset support modules when "auto-tuning".
- */
-
-u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
-{
- u16 *id = drive->id;
- int pio_mode = -1, overridden = 0;
-
- if (mode_wanted != 255)
- return min_t(u8, mode_wanted, max_mode);
-
- if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
- pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
-
- if (pio_mode != -1) {
- printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
- } else {
- pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
- if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */
- pio_mode = 2;
- overridden = 1;
- }
-
- if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
- if (ata_id_has_iordy(id)) {
- if (id[ATA_ID_PIO_MODES] & 7) {
- overridden = 0;
- if (id[ATA_ID_PIO_MODES] & 4)
- pio_mode = 5;
- else if (id[ATA_ID_PIO_MODES] & 2)
- pio_mode = 4;
- else
- pio_mode = 3;
- }
- }
- }
-
- if (overridden)
- printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
- drive->name);
- }
-
- if (pio_mode > max_mode)
- pio_mode = max_mode;
-
- return pio_mode;
-}
-EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
-
-/* req_pio == "255" for auto-tune */
-void ide_set_pio(ide_drive_t *drive, u8 req_pio)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
- u8 host_pio, pio;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return;
-
- BUG_ON(hwif->pio_mask == 0x00);
-
- host_pio = fls(hwif->pio_mask) - 1;
-
- pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
-
- /*
- * TODO:
- * - report device max PIO mode
- * - check req_pio != 255 against device max PIO mode
- */
- printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
- drive->name, host_pio, req_pio,
- req_pio == 255 ? "(auto-tune)" : "", pio);
-
- (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
-}
-EXPORT_SYMBOL_GPL(ide_set_pio);
-
/**
* ide_toggle_bounce - handle bounce buffering
* @drive: drive to update
blk_queue_bounce_limit(drive->queue, addr);
}
-int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
- return 0;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL)
- return -1;
-
- /*
- * TODO: temporary hack for some legacy host drivers that didn't
- * set transfer mode on the device in ->set_pio_mode method...
- */
- if (port_ops->set_dma_mode == NULL) {
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return 0;
- }
-
- if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
- if (ide_config_drive_speed(drive, mode))
- return -1;
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return 0;
- } else {
- port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
- return ide_config_drive_speed(drive, mode);
- }
-}
-
-int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
- return 0;
-
- if (port_ops == NULL || port_ops->set_dma_mode == NULL)
- return -1;
-
- if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
- if (ide_config_drive_speed(drive, mode))
- return -1;
- port_ops->set_dma_mode(drive, mode);
- return 0;
- } else {
- port_ops->set_dma_mode(drive, mode);
- return ide_config_drive_speed(drive, mode);
- }
-}
-EXPORT_SYMBOL_GPL(ide_set_dma_mode);
-
-/**
- * ide_set_xfer_rate - set transfer rate
- * @drive: drive to set
- * @rate: speed to attempt to set
- *
- * General helper for setting the speed of an IDE device. This
- * function knows about user enforced limits from the configuration
- * which ->set_pio_mode/->set_dma_mode does not.
- */
-
-int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return -1;
-
- rate = ide_rate_filter(drive, rate);
-
- BUG_ON(rate < XFER_PIO_0);
-
- if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
- return ide_set_pio_mode(drive, rate);
-
- return ide_set_dma_mode(drive, rate);
-}
-
-static void ide_dump_opcode(ide_drive_t *drive)
-{
- struct request *rq = drive->hwif->rq;
- ide_task_t *task = NULL;
-
- if (!rq)
- return;
-
- if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
- task = rq->special;
-
- printk(KERN_ERR "ide: failed opcode was: ");
- if (task == NULL)
- printk(KERN_CONT "unknown\n");
- else
- printk(KERN_CONT "0x%02x\n", task->tf.command);
-}
-
-u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
+u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
{
+ struct ide_taskfile *tf = &cmd->tf;
u32 high, low;
- if (lba48)
- high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
- tf->hob_lbal;
- else
- high = tf->device & 0xf;
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
+ if (lba48) {
+ tf = &cmd->hob;
+ high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
+ } else
+ high = tf->device & 0xf;
return ((u64)high << 24) | low;
}
static void ide_dump_sector(ide_drive_t *drive)
{
- ide_task_t task;
- struct ide_taskfile *tf = &task.tf;
+ struct ide_cmd cmd;
+ struct ide_taskfile *tf = &cmd.tf;
u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
- memset(&task, 0, sizeof(task));
- if (lba48)
- task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA |
- IDE_TFLAG_LBA48;
- else
- task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;
+ memset(&cmd, 0, sizeof(cmd));
+ if (lba48) {
+ cmd.valid.in.tf = IDE_VALID_LBA;
+ cmd.valid.in.hob = IDE_VALID_LBA;
+ cmd.tf_flags = IDE_TFLAG_LBA48;
+ } else
+ cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE;
- drive->hwif->tp_ops->tf_read(drive, &task);
+ ide_tf_readback(drive, &cmd);
if (lba48 || (tf->device & ATA_LBA))
printk(KERN_CONT ", LBAsect=%llu",
- (unsigned long long)ide_get_lba_addr(tf, lba48));
+ (unsigned long long)ide_get_lba_addr(&cmd, lba48));
else
printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
tf->device & 0xf, tf->lbal);
static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
{
- printk(KERN_ERR "{ ");
+ printk(KERN_CONT "{ ");
if (err & ATA_ABORTED)
printk(KERN_CONT "DriveStatusError ");
if (err & ATA_ICRC)
if (rq)
printk(KERN_CONT ", sector=%llu",
- (unsigned long long)rq->sector);
+ (unsigned long long)blk_rq_pos(rq));
}
printk(KERN_CONT "\n");
}
static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
{
- printk(KERN_ERR "{ ");
+ printk(KERN_CONT "{ ");
if (err & ATAPI_ILI)
printk(KERN_CONT "IllegalLengthIndication ");
if (err & ATAPI_EOM)
else
ide_dump_atapi_error(drive, err);
}
- ide_dump_opcode(drive);
+
+ printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
+ drive->name, drive->hwif->cmd.tf.command);
+
return err;
}
EXPORT_SYMBOL(ide_dump_status);
Code Review / linux-2.6.git / blobdiff