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path: root/drivers/ide/ide-probe.c
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Diffstat (limited to 'drivers/ide/ide-probe.c')
-rw-r--r--drivers/ide/ide-probe.c398
1 files changed, 304 insertions, 94 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 47a114927c31..591deda3f86a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -124,7 +124,7 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd)
id = drive->id;
/* read 512 bytes of id info */
- hwif->ata_input_data(drive, id, SECTOR_WORDS);
+ hwif->input_data(drive, NULL, id, SECTOR_SIZE);
drive->id_read = 1;
local_irq_enable();
@@ -264,6 +264,7 @@ err_misc:
static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ struct ide_io_ports *io_ports = &hwif->io_ports;
int use_altstatus = 0, rc;
unsigned long timeout;
u8 s = 0, a = 0;
@@ -271,7 +272,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
/* take a deep breath */
msleep(50);
- if (IDE_CONTROL_REG) {
+ if (io_ports->ctl_addr) {
a = ide_read_altstatus(drive);
s = ide_read_status(drive);
if ((a ^ s) & ~INDEX_STAT)
@@ -289,10 +290,10 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
*/
if ((cmd == WIN_PIDENTIFY))
/* disable dma & overlap */
- hwif->OUTB(0, IDE_FEATURE_REG);
+ hwif->OUTB(0, io_ports->feature_addr);
/* ask drive for ID */
- hwif->OUTB(cmd, IDE_COMMAND_REG);
+ hwif->OUTBSYNC(drive, cmd, io_ports->command_addr);
timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
timeout += jiffies;
@@ -353,7 +354,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd)
* interrupts during the identify-phase that
* the irq handler isn't expecting.
*/
- if (IDE_CONTROL_REG) {
+ if (hwif->io_ports.ctl_addr) {
if (!hwif->irq) {
autoprobe = 1;
cookie = probe_irq_on();
@@ -393,7 +394,7 @@ static int ide_busy_sleep(ide_hwif_t *hwif)
do {
msleep(50);
- stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ stat = hwif->INB(hwif->io_ports.status_addr);
if ((stat & BUSY_STAT) == 0)
return 0;
} while (time_before(jiffies, timeout));
@@ -425,6 +426,7 @@ static int ide_busy_sleep(ide_hwif_t *hwif)
static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ struct ide_io_ports *io_ports = &hwif->io_ports;
int rc;
u8 stat;
@@ -445,7 +447,8 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
SELECT_DRIVE(drive);
msleep(50);
- if (hwif->INB(IDE_SELECT_REG) != drive->select.all && !drive->present) {
+ if (hwif->INB(io_ports->device_addr) != drive->select.all &&
+ !drive->present) {
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
@@ -471,15 +474,13 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
if (stat == (BUSY_STAT | READY_STAT))
return 4;
- if ((rc == 1 && cmd == WIN_PIDENTIFY) &&
- ((drive->autotune == IDE_TUNE_DEFAULT) ||
- (drive->autotune == IDE_TUNE_AUTO))) {
+ if (rc == 1 && cmd == WIN_PIDENTIFY) {
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);
+ hwif->OUTB(drive->select.all, io_ports->device_addr);
msleep(50);
- hwif->OUTB(WIN_SRST, IDE_COMMAND_REG);
+ hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}
@@ -515,7 +516,7 @@ static void enable_nest (ide_drive_t *drive)
printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
msleep(50);
- hwif->OUTB(EXABYTE_ENABLE_NEST, IDE_COMMAND_REG);
+ hwif->OUTBSYNC(drive, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr);
if (ide_busy_sleep(hwif)) {
printk(KERN_CONT "failed (timeout)\n");
@@ -623,7 +624,7 @@ static void hwif_release_dev (struct device *dev)
complete(&hwif->gendev_rel_comp);
}
-static void ide_register_port(ide_hwif_t *hwif)
+static int ide_register_port(ide_hwif_t *hwif)
{
int ret;
@@ -639,9 +640,23 @@ static void ide_register_port(ide_hwif_t *hwif)
}
hwif->gendev.release = hwif_release_dev;
ret = device_register(&hwif->gendev);
- if (ret < 0)
+ if (ret < 0) {
printk(KERN_WARNING "IDE: %s: device_register error: %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
+ goto out;
+ }
+
+ get_device(&hwif->gendev);
+
+ hwif->portdev = device_create(ide_port_class, &hwif->gendev,
+ MKDEV(0, 0), hwif->name);
+ if (IS_ERR(hwif->portdev)) {
+ ret = PTR_ERR(hwif->portdev);
+ device_unregister(&hwif->gendev);
+ }
+ dev_set_drvdata(hwif->portdev, hwif);
+out:
+ return ret;
}
/**
@@ -756,8 +771,7 @@ static int ide_probe_port(ide_hwif_t *hwif)
BUG_ON(hwif->present);
- if (hwif->noprobe ||
- (hwif->drives[0].noprobe && hwif->drives[1].noprobe))
+ if (hwif->drives[0].noprobe && hwif->drives[1].noprobe)
return -EACCES;
/*
@@ -784,14 +798,9 @@ static int ide_probe_port(ide_hwif_t *hwif)
if (drive->present)
rc = 0;
}
- if (hwif->io_ports[IDE_CONTROL_OFFSET] && hwif->reset) {
- printk(KERN_WARNING "%s: reset\n", hwif->name);
- hwif->OUTB(12, hwif->io_ports[IDE_CONTROL_OFFSET]);
- udelay(10);
- hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
- (void)ide_busy_sleep(hwif);
- }
+
local_irq_restore(flags);
+
/*
* Use cached IRQ number. It might be (and is...) changed by probe
* code above
@@ -804,29 +813,25 @@ static int ide_probe_port(ide_hwif_t *hwif)
static void ide_port_tune_devices(ide_hwif_t *hwif)
{
+ const struct ide_port_ops *port_ops = hwif->port_ops;
int unit;
for (unit = 0; unit < MAX_DRIVES; unit++) {
ide_drive_t *drive = &hwif->drives[unit];
- if (drive->present && hwif->quirkproc)
- hwif->quirkproc(drive);
+ if (drive->present && port_ops && port_ops->quirkproc)
+ port_ops->quirkproc(drive);
}
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
if (drive->present) {
- if (drive->autotune == IDE_TUNE_AUTO)
- ide_set_max_pio(drive);
-
- if (drive->autotune != IDE_TUNE_DEFAULT &&
- drive->autotune != IDE_TUNE_AUTO)
- continue;
+ ide_set_max_pio(drive);
drive->nice1 = 1;
- if (hwif->dma_host_set)
+ if (hwif->dma_ops)
ide_set_dma(drive);
}
}
@@ -949,6 +954,7 @@ static void ide_port_setup_devices(ide_hwif_t *hwif)
{
int i;
+ mutex_lock(&ide_cfg_mtx);
for (i = 0; i < MAX_DRIVES; i++) {
ide_drive_t *drive = &hwif->drives[i];
@@ -963,6 +969,7 @@ static void ide_port_setup_devices(ide_hwif_t *hwif)
ide_add_drive_to_hwgroup(drive);
}
+ mutex_unlock(&ide_cfg_mtx);
}
/*
@@ -975,6 +982,7 @@ static void ide_port_setup_devices(ide_hwif_t *hwif)
*/
static int init_irq (ide_hwif_t *hwif)
{
+ struct ide_io_ports *io_ports = &hwif->io_ports;
unsigned int index;
ide_hwgroup_t *hwgroup;
ide_hwif_t *match = NULL;
@@ -1058,9 +1066,9 @@ static int init_irq (ide_hwif_t *hwif)
if (IDE_CHIPSET_IS_PCI(hwif->chipset))
sa = IRQF_SHARED;
- if (hwif->io_ports[IDE_CONTROL_OFFSET])
+ if (io_ports->ctl_addr)
/* clear nIEN */
- hwif->OUTB(0x08, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ hwif->OUTB(0x08, io_ports->ctl_addr);
if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
goto out_unlink;
@@ -1076,20 +1084,17 @@ static int init_irq (ide_hwif_t *hwif)
#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,
- hwif->io_ports[IDE_CONTROL_OFFSET], hwif->irq);
+ io_ports->data_addr, io_ports->status_addr,
+ io_ports->ctl_addr, hwif->irq);
#else
printk("%s at 0x%08lx on irq %d", hwif->name,
- hwif->io_ports[IDE_DATA_OFFSET], hwif->irq);
+ io_ports->data_addr, hwif->irq);
#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:
@@ -1199,6 +1204,8 @@ static void drive_release_dev (struct device *dev)
{
ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
+ ide_proc_unregister_device(drive);
+
spin_lock_irq(&ide_lock);
ide_remove_drive_from_hwgroup(drive);
kfree(drive->id);
@@ -1214,24 +1221,21 @@ static void drive_release_dev (struct device *dev)
complete(&drive->gendev_rel_comp);
}
+#ifndef ide_default_irq
+#define ide_default_irq(irq) 0
+#endif
+
static int hwif_init(ide_hwif_t *hwif)
{
int old_irq;
if (!hwif->irq) {
- if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET])))
- {
+ hwif->irq = ide_default_irq(hwif->io_ports.data_addr);
+ if (!hwif->irq) {
printk("%s: DISABLED, NO IRQ\n", hwif->name);
return 0;
}
}
-#ifdef CONFIG_BLK_DEV_HD
- if (hwif->irq == HD_IRQ && hwif->io_ports[IDE_DATA_OFFSET] != HD_DATA) {
- printk("%s: CANNOT SHARE IRQ WITH OLD "
- "HARDDISK DRIVER (hd.c)\n", hwif->name);
- return 0;
- }
-#endif /* CONFIG_BLK_DEV_HD */
if (register_blkdev(hwif->major, hwif->name))
return 0;
@@ -1256,7 +1260,8 @@ static int hwif_init(ide_hwif_t *hwif)
* It failed to initialise. Find the default IRQ for
* this port and try that.
*/
- if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]))) {
+ hwif->irq = ide_default_irq(hwif->io_ports.data_addr);
+ if (!hwif->irq) {
printk("%s: Disabled unable to get IRQ %d.\n",
hwif->name, old_irq);
goto out;
@@ -1308,6 +1313,7 @@ static void hwif_register_devices(ide_hwif_t *hwif)
static void ide_port_init_devices(ide_hwif_t *hwif)
{
+ const struct ide_port_ops *port_ops = hwif->port_ops;
int i;
for (i = 0; i < MAX_DRIVES; i++) {
@@ -1319,12 +1325,10 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
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);
+ if (port_ops && port_ops->port_init_devs)
+ port_ops->port_init_devs(hwif);
}
static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
@@ -1339,26 +1343,44 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
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;
+ /* ->host_flags may be set by ->init_iops (or even earlier...) */
+ 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;
+ /* ->set_pio_mode for DTC2278 is currently limited to port 0 */
+ if (hwif->chipset != ide_dtc2278 || hwif->channel == 0)
+ hwif->port_ops = d->port_ops;
+
+ if ((d->host_flags & IDE_HFLAG_SERIALIZE) ||
+ ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) {
+ if (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_NO_DMA) == 0) {
+ int rc;
+
+ if (d->init_dma)
+ rc = d->init_dma(hwif, d);
+ else
+ rc = ide_hwif_setup_dma(hwif, d);
+
+ if (rc < 0) {
+ printk(KERN_INFO "%s: DMA disabled\n", hwif->name);
+ hwif->swdma_mask = 0;
+ hwif->mwdma_mask = 0;
+ hwif->ultra_mask = 0;
+ } else if (d->dma_ops)
+ hwif->dma_ops = d->dma_ops;
+ }
if (d->host_flags & IDE_HFLAG_RQSIZE_256)
hwif->rqsize = 256;
@@ -1366,26 +1388,138 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
/* call chipset specific routine for each enabled port */
if (d->init_hwif)
d->init_hwif(hwif);
+}
- if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+static void ide_port_cable_detect(ide_hwif_t *hwif)
+{
+ const struct ide_port_ops *port_ops = hwif->port_ops;
+
+ if (port_ops && port_ops->cable_detect && (hwif->ultra_mask & 0x78)) {
if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = hwif->cable_detect(hwif);
+ hwif->cbl = port_ops->cable_detect(hwif);
}
}
+static ssize_t store_delete_devices(struct device *portdev,
+ struct device_attribute *attr,
+ const char *buf, size_t n)
+{
+ ide_hwif_t *hwif = dev_get_drvdata(portdev);
+
+ if (strncmp(buf, "1", n))
+ return -EINVAL;
+
+ ide_port_unregister_devices(hwif);
+
+ return n;
+};
+
+static DEVICE_ATTR(delete_devices, S_IWUSR, NULL, store_delete_devices);
+
+static ssize_t store_scan(struct device *portdev,
+ struct device_attribute *attr,
+ const char *buf, size_t n)
+{
+ ide_hwif_t *hwif = dev_get_drvdata(portdev);
+
+ if (strncmp(buf, "1", n))
+ return -EINVAL;
+
+ ide_port_unregister_devices(hwif);
+ ide_port_scan(hwif);
+
+ return n;
+};
+
+static DEVICE_ATTR(scan, S_IWUSR, NULL, store_scan);
+
+static struct device_attribute *ide_port_attrs[] = {
+ &dev_attr_delete_devices,
+ &dev_attr_scan,
+ NULL
+};
+
+static int ide_sysfs_register_port(ide_hwif_t *hwif)
+{
+ int i, rc;
+
+ for (i = 0; ide_port_attrs[i]; i++) {
+ rc = device_create_file(hwif->portdev, ide_port_attrs[i]);
+ if (rc)
+ break;
+ }
+
+ return rc;
+}
+
+/**
+ * ide_find_port_slot - find free ide_hwifs[] slot
+ * @d: IDE port info
+ *
+ * Return the new hwif. If we are out of free slots return NULL.
+ */
+
+ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d)
+{
+ ide_hwif_t *hwif;
+ int i;
+ u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1;
+
+ /*
+ * Claim an unassigned slot.
+ *
+ * Give preference to claiming other slots before claiming ide0/ide1,
+ * just in case there's another interface yet-to-be-scanned
+ * which uses ports 0x1f0/0x170 (the ide0/ide1 defaults).
+ *
+ * Unless there is a bootable card that does not use the standard
+ * ports 0x1f0/0x170 (the ide0/ide1 defaults).
+ */
+ if (bootable) {
+ i = (d && (d->host_flags & IDE_HFLAG_QD_2ND_PORT)) ? 1 : 0;
+
+ for (; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ } else {
+ for (i = 2; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ for (i = 0; i < 2 && i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(ide_find_port_slot);
+
int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
{
ide_hwif_t *hwif, *mate = NULL;
int i, rc = 0;
for (i = 0; i < MAX_HWIFS; i++) {
- if (d == NULL || idx[i] == 0xff) {
+ if (idx[i] == 0xff) {
mate = NULL;
continue;
}
hwif = &ide_hwifs[idx[i]];
+ ide_port_apply_params(hwif);
+
+ if (d == NULL) {
+ mate = NULL;
+ continue;
+ }
+
if (d->chipset != ide_etrax100 && (i & 1) && mate) {
hwif->mate = mate;
mate->mate = hwif;
@@ -1394,6 +1528,7 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
mate = (i & 1) ? NULL : hwif;
ide_init_port(hwif, i & 1, d);
+ ide_port_cable_detect(hwif);
ide_port_init_devices(hwif);
}
@@ -1403,25 +1538,15 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
hwif = &ide_hwifs[idx[i]];
- if ((hwif->chipset != ide_4drives || !hwif->mate ||
- !hwif->mate->present) && ide_hwif_request_regions(hwif)) {
- printk(KERN_ERR "%s: ports already in use, "
- "skipping probe\n", hwif->name);
- continue;
- }
-
- if (ide_probe_port(hwif) < 0) {
- ide_hwif_release_regions(hwif);
- continue;
- }
-
- hwif->present = 1;
+ if (ide_probe_port(hwif) == 0)
+ hwif->present = 1;
if (hwif->chipset != ide_4drives || !hwif->mate ||
!hwif->mate->present)
ide_register_port(hwif);
- ide_port_tune_devices(hwif);
+ if (hwif->present)
+ ide_port_tune_devices(hwif);
}
for (i = 0; i < MAX_HWIFS; i++) {
@@ -1430,9 +1555,6 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
hwif = &ide_hwifs[idx[i]];
- if (!hwif->present)
- continue;
-
if (hwif_init(hwif) == 0) {
printk(KERN_INFO "%s: failed to initialize IDE "
"interface\n", hwif->name);
@@ -1441,8 +1563,13 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
continue;
}
+ if (hwif->present)
+ ide_port_setup_devices(hwif);
+
ide_acpi_init(hwif);
- ide_acpi_port_init_devices(hwif);
+
+ if (hwif->present)
+ ide_acpi_port_init_devices(hwif);
}
for (i = 0; i < MAX_HWIFS; i++) {
@@ -1451,12 +1578,11 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
hwif = &ide_hwifs[idx[i]];
- if (hwif->present) {
- if (hwif->chipset == ide_unknown ||
- hwif->chipset == ide_forced)
- hwif->chipset = ide_generic;
+ if (hwif->chipset == ide_unknown)
+ hwif->chipset = ide_generic;
+
+ if (hwif->present)
hwif_register_devices(hwif);
- }
}
for (i = 0; i < MAX_HWIFS; i++) {
@@ -1465,10 +1591,11 @@ int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
hwif = &ide_hwifs[idx[i]];
- if (hwif->present) {
- ide_proc_register_port(hwif);
+ ide_sysfs_register_port(hwif);
+ ide_proc_register_port(hwif);
+
+ if (hwif->present)
ide_proc_port_register_devices(hwif);
- }
}
return rc;
@@ -1486,3 +1613,86 @@ int ide_device_add(u8 idx[4], const struct ide_port_info *d)
return ide_device_add_all(idx_all, d);
}
EXPORT_SYMBOL_GPL(ide_device_add);
+
+void ide_port_scan(ide_hwif_t *hwif)
+{
+ ide_port_apply_params(hwif);
+ ide_port_cable_detect(hwif);
+ ide_port_init_devices(hwif);
+
+ if (ide_probe_port(hwif) < 0)
+ return;
+
+ hwif->present = 1;
+
+ ide_port_tune_devices(hwif);
+ ide_acpi_port_init_devices(hwif);
+ ide_port_setup_devices(hwif);
+ hwif_register_devices(hwif);
+ ide_proc_port_register_devices(hwif);
+}
+EXPORT_SYMBOL_GPL(ide_port_scan);
+
+static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no,
+ const struct ide_port_info *d,
+ unsigned long config)
+{
+ ide_hwif_t *hwif;
+ unsigned long base, ctl;
+ int irq;
+
+ if (port_no == 0) {
+ base = 0x1f0;
+ ctl = 0x3f6;
+ irq = 14;
+ } else {
+ base = 0x170;
+ ctl = 0x376;
+ irq = 15;
+ }
+
+ if (!request_region(base, 8, d->name)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+ d->name, base, base + 7);
+ return;
+ }
+
+ if (!request_region(ctl, 1, d->name)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+ d->name, ctl);
+ release_region(base, 8);
+ return;
+ }
+
+ ide_std_init_ports(hw, base, ctl);
+ hw->irq = irq;
+
+ hwif = ide_find_port_slot(d);
+ if (hwif) {
+ ide_init_port_hw(hwif, hw);
+ if (config)
+ hwif->config_data = config;
+ idx[port_no] = hwif->index;
+ }
+}
+
+int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
+{
+ u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ hw_regs_t hw[2];
+
+ memset(&hw, 0, sizeof(hw));
+
+ if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
+ ide_legacy_init_one(idx, &hw[0], 0, d, config);
+ ide_legacy_init_one(idx, &hw[1], 1, d, config);
+
+ if (idx[0] == 0xff && idx[1] == 0xff &&
+ (d->host_flags & IDE_HFLAG_SINGLE))
+ return -ENOENT;
+
+ ide_device_add(idx, d);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ide_legacy_device_add);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-25 02:26:21 +0000