if (cmd == WIN_PIDENTIFY) {
u8 type = (id->config >> 8) & 0x1f;
printk("ATAPI ");
-#ifdef CONFIG_BLK_DEV_PDC4030
- if (hwif->channel == 1 && hwif->chipset == ide_pdc4030) {
- printk(" -- not supported on 2nd Promise port\n");
- goto err_misc;
- }
-#endif /* CONFIG_BLK_DEV_PDC4030 */
switch (type) {
case ide_floppy:
if (!strstr(id->model, "CD-ROM")) {
drive->media = ide_disk;
printk("%s DISK drive\n", (drive->is_flash) ? "CFA" : "ATA" );
QUIRK_LIST(drive);
-
- /* Initialize queue depth settings */
- drive->queue_depth = 1;
-#ifdef CONFIG_BLK_DEV_IDE_TCQ_DEPTH
- drive->queue_depth = CONFIG_BLK_DEV_IDE_TCQ_DEPTH;
-#else
- drive->queue_depth = drive->id->queue_depth + 1;
-#endif
- if (drive->queue_depth < 1 || drive->queue_depth > IDE_MAX_TAG)
- drive->queue_depth = IDE_MAX_TAG;
-
return;
err_misc:
unsigned long timeout;
u8 s = 0, a = 0;
+ /* take a deep breath */
+ msleep(50);
+
if (IDE_CONTROL_REG) {
- /* take a deep breath */
- ide_delay_50ms();
a = hwif->INB(IDE_ALTSTATUS_REG);
s = hwif->INB(IDE_STATUS_REG);
if ((a ^ s) & ~INDEX_STAT) {
/* use non-intrusive polling */
hd_status = IDE_ALTSTATUS_REG;
}
- } else {
- ide_delay_50ms();
+ } else
hd_status = IDE_STATUS_REG;
- }
/* set features register for atapi
* identify command to be sure of reply
/* disable dma & overlap */
hwif->OUTB(0, IDE_FEATURE_REG);
- if (hwif->identify != NULL) {
- if (hwif->identify(drive))
- return 1;
- } else {
- /* ask drive for ID */
- hwif->OUTB(cmd, IDE_COMMAND_REG);
- }
+ /* ask drive for ID */
+ hwif->OUTB(cmd, IDE_COMMAND_REG);
+
timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
timeout += jiffies;
do {
return 1;
}
/* give drive a breather */
- ide_delay_50ms();
+ msleep(50);
} while ((hwif->INB(hd_status)) & BUSY_STAT);
/* wait for IRQ and DRQ_STAT */
- ide_delay_50ms();
+ msleep(50);
if (OK_STAT((hwif->INB(IDE_STATUS_REG)), DRQ_STAT, BAD_R_STAT)) {
unsigned long flags;
*/
printk("%s: IRQ probe failed (0x%lx)\n",
drive->name, cookie);
-#ifdef CONFIG_BLK_DEV_CMD640
-#ifdef CMD640_DUMP_REGS
- if (hwif->chipset == ide_cmd640) {
- printk("%s: Hmmm.. probably a driver "
- "problem.\n", drive->name);
- CMD640_DUMP_REGS;
- }
-#endif /* CMD640_DUMP_REGS */
-#endif /* CONFIG_BLK_DEV_CMD640 */
}
}
}
/* needed for some systems
* (e.g. crw9624 as drive0 with disk as slave)
*/
- ide_delay_50ms();
+ msleep(50);
SELECT_DRIVE(drive);
- ide_delay_50ms();
+ msleep(50);
if (hwif->INB(IDE_SELECT_REG) != drive->select.all && !drive->present) {
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
/* allow BUSY_STAT to assert & clear */
- ide_delay_50ms();
+ msleep(50);
}
/* no i/f present: mmm.. this should be a 4 -ml */
return 3;
printk("%s: no response (status = 0x%02x), "
"resetting drive\n", drive->name,
hwif->INB(IDE_STATUS_REG));
- ide_delay_50ms();
+ msleep(50);
hwif->OUTB(drive->select.all, IDE_SELECT_REG);
- ide_delay_50ms();
+ msleep(50);
hwif->OUTB(WIN_SRST, IDE_COMMAND_REG);
timeout = jiffies;
while (((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) &&
time_before(jiffies, timeout + WAIT_WORSTCASE))
- ide_delay_50ms();
+ msleep(50);
rc = try_to_identify(drive, cmd);
}
if (rc == 1)
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
- ide_delay_50ms();
+ msleep(50);
/* ensure drive irq is clear */
(void) hwif->INB(IDE_STATUS_REG);
}
printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
- ide_delay_50ms();
+ msleep(50);
hwif->OUTB(EXABYTE_ENABLE_NEST, IDE_COMMAND_REG);
timeout = jiffies + WAIT_WORSTCASE;
do {
printk("failed (timeout)\n");
return;
}
- ide_delay_50ms();
+ msleep(50);
} while ((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT);
- ide_delay_50ms();
+ msleep(50);
if (!OK_STAT((hwif->INB(IDE_STATUS_REG)), 0, BAD_STAT)) {
printk("failed (status = 0x%02x)\n", hwif->INB(IDE_STATUS_REG));
device_register(&hwif->gendev);
}
-//EXPORT_SYMBOL(hwif_register);
-
-#ifdef CONFIG_PPC
static int wait_hwif_ready(ide_hwif_t *hwif)
{
int rc;
- printk(KERN_INFO "Probing IDE interface %s...\n", hwif->name);
+ printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name);
/* Let HW settle down a bit from whatever init state we
* come from */
return rc;
}
-#endif
+
+/**
+ * ide_undecoded_slave - look for bad CF adapters
+ * @hwif: interface
+ *
+ * Analyse the drives on the interface and attempt to decide if we
+ * have the same drive viewed twice. This occurs with crap CF adapters
+ * and PCMCIA sometimes.
+ */
+
+void ide_undecoded_slave(ide_hwif_t *hwif)
+{
+ ide_drive_t *drive0 = &hwif->drives[0];
+ ide_drive_t *drive1 = &hwif->drives[1];
+
+ if (drive0->present == 0 || drive1->present == 0)
+ return;
+
+ /* If the models don't match they are not the same product */
+ if (strcmp(drive0->id->model, drive1->id->model))
+ return;
+
+ /* Serial numbers do not match */
+ if (strncmp(drive0->id->serial_no, drive1->id->serial_no, 20))
+ return;
+
+ /* No serial number, thankfully very rare for CF */
+ if (drive0->id->serial_no[0] == 0)
+ return;
+
+ /* Appears to be an IDE flash adapter with decode bugs */
+ printk(KERN_WARNING "ide-probe: ignoring undecoded slave\n");
+
+ drive1->present = 0;
+}
+
+EXPORT_SYMBOL_GPL(ide_undecoded_slave);
/*
* This routine only knows how to look for drive units 0 and 1
* on an interface, so any setting of MAX_DRIVES > 2 won't work here.
*/
-void probe_hwif (ide_hwif_t *hwif)
+static void probe_hwif(ide_hwif_t *hwif)
{
unsigned int unit;
unsigned long flags;
return;
if ((hwif->chipset != ide_4drives || !hwif->mate || !hwif->mate->present) &&
-#ifdef CONFIG_BLK_DEV_PDC4030
- (hwif->chipset != ide_pdc4030 || hwif->channel == 0) &&
-#endif /* CONFIG_BLK_DEV_PDC4030 */
(ide_hwif_request_regions(hwif))) {
u16 msgout = 0;
for (unit = 0; unit < MAX_DRIVES; ++unit) {
local_irq_set(flags);
-#ifdef CONFIG_PPC
/* This is needed on some PPCs and a bunch of BIOS-less embedded
* platforms. Typical cases are:
*
*
* BenH.
*/
- if (wait_hwif_ready(hwif))
- printk(KERN_WARNING "%s: Wait for ready failed before probe !\n", hwif->name);
-#endif /* CONFIG_PPC */
+ if (wait_hwif_ready(hwif) == -EBUSY)
+ printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
/*
* Second drive should only exist if first drive was found,
udelay(10);
hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
do {
- ide_delay_50ms();
+ msleep(50);
stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
} while ((stat & BUSY_STAT) && time_after(timeout, jiffies));
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
- int enable_dma = 1;
if (drive->present) {
if (hwif->tuneproc != NULL &&
drive->autotune == IDE_TUNE_AUTO)
/* auto-tune PIO mode */
hwif->tuneproc(drive, 255);
-
-#ifdef CONFIG_IDEDMA_ONLYDISK
- if (drive->media != ide_disk)
- enable_dma = 0;
-#endif
/*
* MAJOR HACK BARF :-/
*
* PARANOIA!!!
*/
hwif->ide_dma_off_quietly(drive);
- if (enable_dma)
+#ifdef CONFIG_IDEDMA_ONLYDISK
+ if (drive->media == ide_disk)
+#endif
hwif->ide_dma_check(drive);
}
}
}
}
-EXPORT_SYMBOL(probe_hwif);
+static int hwif_init(ide_hwif_t *hwif);
-int hwif_init (ide_hwif_t *hwif);
-int probe_hwif_init (ide_hwif_t *hwif)
+int probe_hwif_init_with_fixup(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
{
probe_hwif(hwif);
- hwif_init(hwif);
+
+ if (fixup)
+ fixup(hwif);
+
+ if (!hwif_init(hwif)) {
+ printk(KERN_INFO "%s: failed to initialize IDE interface\n",
+ hwif->name);
+ return -1;
+ }
if (hwif->present) {
u16 unit = 0;
return 0;
}
+int probe_hwif_init(ide_hwif_t *hwif)
+{
+ return probe_hwif_init_with_fixup(hwif, NULL);
+}
+
EXPORT_SYMBOL(probe_hwif_init);
#if MAX_HWIFS > 1
*
* This routine detects and reports such situations, but does not fix them.
*/
-void save_match (ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match)
+static void save_match(ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match)
{
ide_hwif_t *m = *match;
if (!m || m->irq != hwif->irq) /* don't undo a prior perfect match */
*match = new;
}
-EXPORT_SYMBOL(save_match);
#endif /* MAX_HWIFS > 1 */
/*
if (!q)
return 1;
- q->queuedata = HWGROUP(drive);
+ q->queuedata = drive;
blk_queue_segment_boundary(q, 0xffff);
- if (!hwif->rqsize)
- hwif->rqsize = hwif->no_lba48 ? 256 : 65536;
+ if (!hwif->rqsize) {
+ if (hwif->no_lba48 || hwif->no_lba48_dma)
+ hwif->rqsize = 256;
+ else
+ hwif->rqsize = 65536;
+ }
if (hwif->rqsize < max_sectors)
max_sectors = hwif->rqsize;
blk_queue_max_sectors(q, max_sectors);
/* When we have an IOMMU, we may have a problem where pci_map_sg()
* creates segments that don't completely match our boundary
* requirements and thus need to be broken up again. Because it
- * doesn't align properly neither, we may actually have to break up
+ * doesn't align properly either, we may actually have to break up
* to more segments than what was we got in the first place, a max
* worst case is twice as many.
* This will be fixed once we teach pci_map_sg() about our boundary
- * requirements, hopefully soon
+ * requirements, hopefully soon. *FIXME*
*/
if (!PCI_DMA_BUS_IS_PHYS)
max_sg_entries >>= 1;
extern ide_driver_t idedefault_driver;
-struct kobject *ata_probe(dev_t dev, int *part, void *data)
+static struct kobject *ata_probe(dev_t dev, int *part, void *data)
{
ide_hwif_t *hwif = data;
int unit = *part >> PARTN_BITS;
THIS_MODULE, ata_probe, ata_lock, hwif);
}
-EXPORT_SYMBOL(init_gendisk);
-
-int hwif_init (ide_hwif_t *hwif)
+static int hwif_init(ide_hwif_t *hwif)
{
int old_irq, unit;
+ /* Return success if no device is connected */
if (!hwif->present)
- return 0;
+ return 1;
if (!hwif->irq) {
if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET])))
if (register_blkdev(hwif->major, hwif->name))
return 0;
+ if (!hwif->sg_max_nents)
+ hwif->sg_max_nents = PRD_ENTRIES;
+
+ hwif->sg_table = kmalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
+ GFP_KERNEL);
+ if (!hwif->sg_table) {
+ printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name);
+ goto out;
+ }
+
if (alloc_disks(hwif) < 0)
goto out;
return 0;
}
-EXPORT_SYMBOL(hwif_init);
-
int ideprobe_init (void)
{
unsigned int index;
for (index = 0; index < MAX_HWIFS; ++index)
probe[index] = !ide_hwifs[index].present;
- /*
- * Probe for drives in the usual way.. CMOS/BIOS, then poke at ports
- */
for (index = 0; index < MAX_HWIFS; ++index)
if (probe[index])
probe_hwif(&ide_hwifs[index]);
git://git.onelab.eu / linux-2.6.git / blobdiff