static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
- int rc;
- unsigned long hd_status;
+ int use_altstatus = 0, rc;
unsigned long timeout;
u8 s = 0, a = 0;
msleep(50);
if (IDE_CONTROL_REG) {
- a = hwif->INB(IDE_ALTSTATUS_REG);
- s = hwif->INB(IDE_STATUS_REG);
- if ((a ^ s) & ~INDEX_STAT) {
- printk(KERN_INFO "%s: probing with STATUS(0x%02x) instead of "
- "ALTSTATUS(0x%02x)\n", drive->name, s, a);
+ a = ide_read_altstatus(drive);
+ s = ide_read_status(drive);
+ if ((a ^ s) & ~INDEX_STAT)
/* ancient Seagate drives, broken interfaces */
- hd_status = IDE_STATUS_REG;
- } else {
+ printk(KERN_INFO "%s: probing with STATUS(0x%02x) "
+ "instead of ALTSTATUS(0x%02x)\n",
+ drive->name, s, a);
+ else
/* use non-intrusive polling */
- hd_status = IDE_ALTSTATUS_REG;
- }
- } else
- hd_status = IDE_STATUS_REG;
+ use_altstatus = 1;
+ }
/* set features register for atapi
* identify command to be sure of reply
}
/* give drive a breather */
msleep(50);
- } while ((hwif->INB(hd_status)) & BUSY_STAT);
+ s = use_altstatus ? ide_read_altstatus(drive)
+ : ide_read_status(drive);
+ } while (s & BUSY_STAT);
/* wait for IRQ and DRQ_STAT */
msleep(50);
- if (OK_STAT((hwif->INB(IDE_STATUS_REG)), DRQ_STAT, BAD_R_STAT)) {
+ s = ide_read_status(drive);
+
+ if (OK_STAT(s, DRQ_STAT, BAD_R_STAT)) {
unsigned long flags;
/* local CPU only; some systems need this */
/* drive responded with ID */
rc = 0;
/* clear drive IRQ */
- (void) hwif->INB(IDE_STATUS_REG);
+ (void)ide_read_status(drive);
local_irq_restore(flags);
} else {
/* drive refused ID */
ide_set_irq(drive, 0);
/* clear drive IRQ */
- (void) hwif->INB(IDE_STATUS_REG);
+ (void)ide_read_status(drive);
udelay(5);
irq = probe_irq_off(cookie);
if (!hwif->irq) {
static int do_probe (ide_drive_t *drive, u8 cmd)
{
- int rc;
ide_hwif_t *hwif = HWIF(drive);
+ int rc;
+ u8 stat;
if (drive->present) {
/* avoid waiting for inappropriate probes */
return 3;
}
- if (OK_STAT((hwif->INB(IDE_STATUS_REG)), READY_STAT, BUSY_STAT) ||
+ stat = ide_read_status(drive);
+
+ if (OK_STAT(stat, READY_STAT, BUSY_STAT) ||
drive->present || cmd == WIN_PIDENTIFY) {
/* send cmd and wait */
if ((rc = try_to_identify(drive, cmd))) {
/* failed: try again */
rc = try_to_identify(drive,cmd);
}
- if (hwif->INB(IDE_STATUS_REG) == (BUSY_STAT|READY_STAT))
+
+ stat = ide_read_status(drive);
+
+ if (stat == (BUSY_STAT | READY_STAT))
return 4;
if ((rc == 1 && cmd == WIN_PIDENTIFY) &&
((drive->autotune == IDE_TUNE_DEFAULT) ||
(drive->autotune == IDE_TUNE_AUTO))) {
- printk("%s: no response (status = 0x%02x), "
- "resetting drive\n", drive->name,
- hwif->INB(IDE_STATUS_REG));
+ printk(KERN_ERR "%s: no response (status = 0x%02x), "
+ "resetting drive\n", drive->name, stat);
msleep(50);
hwif->OUTB(drive->select.all, IDE_SELECT_REG);
msleep(50);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}
+
+ /* ensure drive IRQ is clear */
+ stat = ide_read_status(drive);
+
if (rc == 1)
- printk("%s: no response (status = 0x%02x)\n",
- drive->name, hwif->INB(IDE_STATUS_REG));
- /* ensure drive irq is clear */
- (void) hwif->INB(IDE_STATUS_REG);
+ printk(KERN_ERR "%s: no response (status = 0x%02x)\n",
+ drive->name, stat);
} else {
/* not present or maybe ATAPI */
rc = 3;
SELECT_DRIVE(&hwif->drives[0]);
msleep(50);
/* ensure drive irq is clear */
- (void) hwif->INB(IDE_STATUS_REG);
+ (void)ide_read_status(drive);
}
return rc;
}
static void enable_nest (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ u8 stat;
printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
msleep(50);
- if (!OK_STAT((hwif->INB(IDE_STATUS_REG)), 0, BAD_STAT)) {
- printk("failed (status = 0x%02x)\n", hwif->INB(IDE_STATUS_REG));
- } else {
- printk("success\n");
- }
+ stat = ide_read_status(drive);
+
+ if (!OK_STAT(stat, 0, BAD_STAT))
+ printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
+ else
+ printk(KERN_CONT "success\n");
/* if !(success||timed-out) */
if (do_probe(drive, WIN_IDENTIFY) >= 2) {
BUG_ON(hwif->present);
- if (hwif->noprobe)
+ if (hwif->noprobe ||
+ (hwif->drives[0].noprobe && hwif->drives[1].noprobe))
return -EACCES;
/*
printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
/*
- * Need to probe slave device first to make it release PDIAG-.
+ * Second drive should only exist if first drive was found,
+ * but a lot of cdrom drives are configured as single slaves.
*/
- for (unit = MAX_DRIVES - 1; unit >= 0; unit--) {
+ for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
drive->dn = (hwif->channel ? 2 : 0) + unit;
(void) probe_for_drive(drive);
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
- if (hwif->no_io_32bit)
+ if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT)
drive->no_io_32bit = 1;
else
drive->no_io_32bit = drive->id->dword_io ? 1 : 0;
q->queuedata = drive;
blk_queue_segment_boundary(q, 0xffff);
- if (!hwif->rqsize) {
- if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
- (hwif->host_flags & IDE_HFLAG_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);
return 0;
}
+static void ide_add_drive_to_hwgroup(ide_drive_t *drive)
+{
+ ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+
+ spin_lock_irq(&ide_lock);
+ if (!hwgroup->drive) {
+ /* first drive for hwgroup. */
+ drive->next = drive;
+ hwgroup->drive = drive;
+ hwgroup->hwif = HWIF(hwgroup->drive);
+ } else {
+ drive->next = hwgroup->drive->next;
+ hwgroup->drive->next = drive;
+ }
+ spin_unlock_irq(&ide_lock);
+}
+
+/*
+ * For any present drive:
+ * - allocate the block device queue
+ * - link drive into the hwgroup
+ */
+static void ide_port_setup_devices(ide_hwif_t *hwif)
+{
+ int i;
+
+ for (i = 0; i < MAX_DRIVES; i++) {
+ ide_drive_t *drive = &hwif->drives[i];
+
+ if (!drive->present)
+ continue;
+
+ if (ide_init_queue(drive)) {
+ printk(KERN_ERR "ide: failed to init %s\n",
+ drive->name);
+ continue;
+ }
+
+ ide_add_drive_to_hwgroup(drive);
+ }
+}
+
/*
* This routine sets up the irq for an ide interface, and creates a new
* hwgroup for the irq/hwif if none was previously assigned.
*/
if (!match || match->irq != hwif->irq) {
int sa = 0;
-#if defined(__mc68000__) || defined(CONFIG_APUS)
+#if defined(__mc68000__)
sa = IRQF_SHARED;
-#endif /* __mc68000__ || CONFIG_APUS */
+#endif /* __mc68000__ */
if (IDE_CHIPSET_IS_PCI(hwif->chipset))
sa = IRQF_SHARED;
goto out_unlink;
}
- /*
- * For any present drive:
- * - allocate the block device queue
- * - link drive into the hwgroup
- */
- for (index = 0; index < MAX_DRIVES; ++index) {
- ide_drive_t *drive = &hwif->drives[index];
- if (!drive->present)
- continue;
- if (ide_init_queue(drive)) {
- printk(KERN_ERR "ide: failed to init %s\n",drive->name);
- continue;
- }
- spin_lock_irq(&ide_lock);
- if (!hwgroup->drive) {
- /* first drive for hwgroup. */
- drive->next = drive;
- hwgroup->drive = drive;
- hwgroup->hwif = HWIF(hwgroup->drive);
- } else {
- drive->next = hwgroup->drive->next;
- hwgroup->drive->next = drive;
- }
- spin_unlock_irq(&ide_lock);
+ if (!hwif->rqsize) {
+ if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
+ (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA))
+ hwif->rqsize = 256;
+ else
+ hwif->rqsize = 65536;
}
-#if !defined(__mc68000__) && !defined(CONFIG_APUS)
+#if !defined(__mc68000__)
printk("%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name,
hwif->io_ports[IDE_DATA_OFFSET],
hwif->io_ports[IDE_DATA_OFFSET]+7,
#else
printk("%s at 0x%08lx on irq %d", hwif->name,
hwif->io_ports[IDE_DATA_OFFSET], hwif->irq);
-#endif /* __mc68000__ && CONFIG_APUS */
+#endif /* __mc68000__ */
if (match)
printk(" (%sed with %s)",
hwif->sharing_irq ? "shar" : "serializ", match->name);
printk("\n");
+
+ ide_port_setup_devices(hwif);
+
mutex_unlock(&ide_cfg_mtx);
return 0;
out_unlink:
complete(&drive->gendev_rel_comp);
}
-/*
- * init_gendisk() (as opposed to ide_geninit) is called for each major device,
- * after probing for drives, to allocate partition tables and other data
- * structures needed for the routines in genhd.c. ide_geninit() gets called
- * somewhat later, during the partition check.
- */
-static void init_gendisk (ide_hwif_t *hwif)
-{
- unsigned int unit;
-
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t * drive = &hwif->drives[unit];
- ide_add_generic_settings(drive);
- snprintf(drive->gendev.bus_id,BUS_ID_SIZE,"%u.%u",
- hwif->index,unit);
- drive->gendev.parent = &hwif->gendev;
- drive->gendev.bus = &ide_bus_type;
- drive->gendev.driver_data = drive;
- drive->gendev.release = drive_release_dev;
- }
- blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
- THIS_MODULE, ata_probe, ata_lock, hwif);
-}
-
static int hwif_init(ide_hwif_t *hwif)
{
int old_irq;
hwif->name, hwif->irq);
done:
- init_gendisk(hwif);
- ide_acpi_init(hwif);
+ blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
+ THIS_MODULE, ata_probe, ata_lock, hwif);
return 1;
out:
for (i = 0; i < MAX_DRIVES; i++) {
ide_drive_t *drive = &hwif->drives[i];
+ struct device *dev = &drive->gendev;
+ int ret;
- if (drive->present) {
- int ret = device_register(&drive->gendev);
+ if (!drive->present)
+ continue;
- if (ret < 0)
- printk(KERN_WARNING "IDE: %s: "
- "device_register error: %d\n",
- __FUNCTION__, ret);
- }
+ ide_add_generic_settings(drive);
+
+ snprintf(dev->bus_id, BUS_ID_SIZE, "%u.%u", hwif->index, i);
+ dev->parent = &hwif->gendev;
+ dev->bus = &ide_bus_type;
+ dev->driver_data = drive;
+ dev->release = drive_release_dev;
+
+ ret = device_register(dev);
+ if (ret < 0)
+ printk(KERN_WARNING "IDE: %s: device_register error: "
+ "%d\n", __func__, ret);
+ }
+}
+
+static void ide_port_init_devices(ide_hwif_t *hwif)
+{
+ int i;
+
+ for (i = 0; i < MAX_DRIVES; i++) {
+ ide_drive_t *drive = &hwif->drives[i];
+
+ if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
+ drive->io_32bit = 1;
+ if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS)
+ drive->unmask = 1;
+ if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS)
+ drive->no_unmask = 1;
+ if ((hwif->host_flags & IDE_HFLAG_NO_AUTOTUNE) == 0)
+ drive->autotune = 1;
+ }
+
+ if (hwif->port_init_devs)
+ hwif->port_init_devs(hwif);
+}
+
+static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
+ const struct ide_port_info *d)
+{
+ if (d->chipset != ide_etrax100)
+ hwif->channel = port;
+
+ if (d->chipset)
+ hwif->chipset = d->chipset;
+
+ if (d->init_iops)
+ d->init_iops(hwif);
+
+ if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
+ ide_hwif_setup_dma(hwif, d);
+
+ if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
+ (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
+ hwif->irq = port ? 15 : 14;
+
+ hwif->host_flags = d->host_flags;
+ hwif->pio_mask = d->pio_mask;
+
+ if ((d->host_flags & IDE_HFLAG_SERIALIZE) && hwif->mate)
+ hwif->mate->serialized = hwif->serialized = 1;
+
+ hwif->swdma_mask = d->swdma_mask;
+ hwif->mwdma_mask = d->mwdma_mask;
+ hwif->ultra_mask = d->udma_mask;
+
+ /* reset DMA masks only for SFF-style DMA controllers */
+ if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0 && hwif->dma_base == 0)
+ hwif->swdma_mask = hwif->mwdma_mask = hwif->ultra_mask = 0;
+
+ if (d->host_flags & IDE_HFLAG_RQSIZE_256)
+ hwif->rqsize = 256;
+
+ /* call chipset specific routine for each enabled port */
+ if (d->init_hwif)
+ d->init_hwif(hwif);
+
+ if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = hwif->cable_detect(hwif);
}
}
-int ide_device_add_all(u8 *idx)
+int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
{
- ide_hwif_t *hwif;
+ ide_hwif_t *hwif, *mate = NULL;
int i, rc = 0;
+ for (i = 0; i < MAX_HWIFS; i++) {
+ if (d == NULL || idx[i] == 0xff) {
+ mate = NULL;
+ continue;
+ }
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (d->chipset != ide_etrax100 && (i & 1) && mate) {
+ hwif->mate = mate;
+ mate->mate = hwif;
+ }
+
+ mate = (i & 1) ? NULL : hwif;
+
+ ide_init_port(hwif, i & 1, d);
+ ide_port_init_devices(hwif);
+ }
+
for (i = 0; i < MAX_HWIFS; i++) {
if (idx[i] == 0xff)
continue;
rc = -1;
continue;
}
+
+ ide_acpi_init(hwif);
+ ide_acpi_port_init_devices(hwif);
}
for (i = 0; i < MAX_HWIFS; i++) {
}
for (i = 0; i < MAX_HWIFS; i++) {
- if (idx[i] != 0xff)
- ide_proc_register_port(&ide_hwifs[idx[i]]);
+ if (idx[i] == 0xff)
+ continue;
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (hwif->present) {
+ ide_proc_register_port(hwif);
+ ide_proc_port_register_devices(hwif);
+ }
}
return rc;
}
EXPORT_SYMBOL_GPL(ide_device_add_all);
-int ide_device_add(u8 idx[4])
+int ide_device_add(u8 idx[4], const struct ide_port_info *d)
{
u8 idx_all[MAX_HWIFS];
int i;
for (i = 0; i < MAX_HWIFS; i++)
idx_all[i] = (i < 4) ? idx[i] : 0xff;
- return ide_device_add_all(idx_all);
+ return ide_device_add_all(idx_all, d);
}
EXPORT_SYMBOL_GPL(ide_device_add);
git.samba.org / sfrench / cifs-2.6.git / blobdiff