*
* This is the IDE probe module, as evolved from hd.c and ide.c.
*
- * Version 1.00 move drive probing code from ide.c to ide-probe.c
- * Version 1.01 fix compilation problem for m68k
- * Version 1.02 increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot
- * by Andrea Arcangeli
- * Version 1.03 fix for (hwif->chipset == ide_4drives)
- * Version 1.04 fixed buggy treatments of known flash memory cards
- *
- * Version 1.05 fix for (hwif->chipset == ide_pdc4030)
- * added ide6/7/8/9
- * allowed for secondary flash card to be detectable
- * with new flag : drive->ata_flash : 1;
- * Version 1.06 stream line request queue and prep for cascade project.
- * Version 1.07 max_sect <= 255; slower disks would get behind and
- * then fall over when they get to 256. Paul G.
- * Version 1.10 Update set for new IDE. drive->id is now always
- * valid after probe time even with noprobe
+ * -- increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot
+ * by Andrea Arcangeli
*/
#include <linux/module.h>
#ifdef CONFIG_IDEDISK_MULTI_MODE
id->multsect = ((id->max_multsect/2) > 1) ? id->max_multsect : 0;
id->multsect_valid = id->multsect ? 1 : 0;
- drive->mult_req = id->multsect_valid ? id->max_multsect : INITIAL_MULT_COUNT;
+ drive->mult_req = id->multsect_valid ? id->max_multsect : 0;
drive->special.b.set_multmode = drive->mult_req ? 1 : 0;
#else /* original, pre IDE-NFG, per request of AC */
- drive->mult_req = INITIAL_MULT_COUNT;
+ drive->mult_req = 0;
if (drive->mult_req > id->max_multsect)
drive->mult_req = id->max_multsect;
if (drive->mult_req || ((id->multsect_valid & 1) && id->multsect))
ide_fixstring(id->fw_rev, sizeof(id->fw_rev), bswap);
ide_fixstring(id->serial_no, sizeof(id->serial_no), bswap);
+ /* we depend on this a lot! */
+ id->model[sizeof(id->model)-1] = '\0';
+
if (strstr(id->model, "E X A B Y T E N E S T"))
goto err_misc;
- /* we depend on this a lot! */
- id->model[sizeof(id->model)-1] = '\0';
printk("%s: %s, ", drive->name, id->model);
drive->present = 1;
drive->dead = 0;
drive->media = ide_disk;
printk("%s DISK drive\n", (id->config == 0x848a) ? "CFA" : "ATA" );
- QUIRK_LIST(drive);
+
return;
err_misc:
static int wait_hwif_ready(ide_hwif_t *hwif)
{
- int rc;
+ int unit, rc;
printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name);
return rc;
/* Now make sure both master & slave are ready */
- SELECT_DRIVE(&hwif->drives[0]);
- hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
- mdelay(2);
- rc = ide_wait_not_busy(hwif, 35000);
- if (rc)
- return rc;
- SELECT_DRIVE(&hwif->drives[1]);
- hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
- mdelay(2);
- rc = ide_wait_not_busy(hwif, 35000);
+ for (unit = 0; unit < MAX_DRIVES; unit++) {
+ ide_drive_t *drive = &hwif->drives[unit];
+ /* Ignore disks that we will not probe for later. */
+ if (!drive->noprobe || drive->present) {
+ SELECT_DRIVE(drive);
+ if (IDE_CONTROL_REG)
+ hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
+ mdelay(2);
+ rc = ide_wait_not_busy(hwif, 35000);
+ if (rc)
+ goto out;
+ } else
+ printk(KERN_DEBUG "%s: ide_wait_not_busy() skipped\n",
+ drive->name);
+ }
+out:
/* Exit function with master reselected (let's be sane) */
- SELECT_DRIVE(&hwif->drives[0]);
-
+ if (unit)
+ SELECT_DRIVE(&hwif->drives[0]);
+
return rc;
}
/**
* ide_undecoded_slave - look for bad CF adapters
- * @hwif: interface
+ * @drive1: drive
*
* 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)
+void ide_undecoded_slave(ide_drive_t *drive1)
{
- ide_drive_t *drive0 = &hwif->drives[0];
- ide_drive_t *drive1 = &hwif->drives[1];
+ ide_drive_t *drive0 = &drive1->hwif->drives[0];
- if (drive0->present == 0 || drive1->present == 0)
+ if ((drive1->dn & 1) == 0 || drive0->present == 0)
return;
/* If the models don't match they are not the same product */
return;
}
- if (hwif->fixup)
- hwif->fixup(hwif);
+ for (unit = 0; unit < MAX_DRIVES; unit++) {
+ ide_drive_t *drive = &hwif->drives[unit];
+
+ if (drive->present && hwif->quirkproc)
+ hwif->quirkproc(drive);
+ }
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
drive->nice1 = 1;
- if (hwif->ide_dma_on) {
- /*
- * Force DMAing for the beginning of the check.
- * Some chipsets appear to do interesting
- * things, if not checked and cleared.
- * PARANOIA!!!
- */
- hwif->dma_off_quietly(drive);
+ if (hwif->dma_host_set)
ide_set_dma(drive);
- }
}
}
}
}
-static int hwif_init(ide_hwif_t *hwif);
-static void hwif_register_devices(ide_hwif_t *hwif);
-
-static int probe_hwif_init(ide_hwif_t *hwif)
-{
- probe_hwif(hwif);
-
- if (!hwif_init(hwif)) {
- printk(KERN_INFO "%s: failed to initialize IDE interface\n",
- hwif->name);
- return -1;
- }
-
- if (hwif->present)
- hwif_register_devices(hwif);
-
- return 0;
-}
-
#if MAX_HWIFS > 1
/*
* save_match() is used to simplify logic in init_irq() below.
* Much of the code is for correctly detecting/handling irq sharing
* and irq serialization situations. This is somewhat complex because
* it handles static as well as dynamic (PCMCIA) IDE interfaces.
- *
- * The IRQF_DISABLED in sa_flags means ide_intr() is always entered with
- * interrupts completely disabled. This can be bad for interrupt latency,
- * but anything else has led to problems on some machines. We re-enable
- * interrupts as much as we can safely do in most places.
*/
static int init_irq (ide_hwif_t *hwif)
{
* Allocate the irq, if not already obtained for another hwif
*/
if (!match || match->irq != hwif->irq) {
- int sa = IRQF_DISABLED;
+ int sa = 0;
#if defined(__mc68000__) || defined(CONFIG_APUS)
sa = IRQF_SHARED;
#endif /* __mc68000__ || CONFIG_APUS */
- if (IDE_CHIPSET_IS_PCI(hwif->chipset)) {
+ if (IDE_CHIPSET_IS_PCI(hwif->chipset))
sa = IRQF_SHARED;
-#ifndef CONFIG_IDEPCI_SHARE_IRQ
- sa |= IRQF_DISABLED;
-#endif /* CONFIG_IDEPCI_SHARE_IRQ */
- }
if (hwif->io_ports[IDE_CONTROL_OFFSET])
/* clear nIEN */
{
struct gendisk *p = data;
*part &= (1 << PARTN_BITS) - 1;
- return &p->kobj;
+ return &p->dev.kobj;
}
static int exact_lock(dev_t dev, void *data)
int ide_device_add(u8 idx[4])
{
+ ide_hwif_t *hwif;
int i, rc = 0;
for (i = 0; i < 4; i++) {
- if (idx[i] != 0xff)
- rc |= probe_hwif_init(&ide_hwifs[idx[i]]);
+ if (idx[i] == 0xff)
+ continue;
+
+ probe_hwif(&ide_hwifs[idx[i]]);
+ }
+
+ for (i = 0; i < 4; i++) {
+ if (idx[i] == 0xff)
+ continue;
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (hwif_init(hwif) == 0) {
+ printk(KERN_INFO "%s: failed to initialize IDE "
+ "interface\n", hwif->name);
+ rc = -1;
+ continue;
+ }
+ }
+
+ for (i = 0; i < 4; i++) {
+ if (idx[i] == 0xff)
+ continue;
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (hwif->present)
+ hwif_register_devices(hwif);
}
for (i = 0; i < 4; i++) {
git.openpandora.org / pandora-kernel.git / blobdiff