id = drive->id;
/* read 512 bytes of id info */
- hwif->ata_input_data(drive, id, SECTOR_WORDS);
+ hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
drive->id_read = 1;
local_irq_enable();
#endif
ide_fix_driveid(id);
-#if defined (CONFIG_SCSI_EATA_PIO) || defined (CONFIG_SCSI_EATA)
- /*
- * EATA SCSI controllers do a hardware ATA emulation:
- * Ignore them if there is a driver for them available.
- */
- if ((id->model[0] == 'P' && id->model[1] == 'M') ||
- (id->model[0] == 'S' && id->model[1] == 'K')) {
- printk("%s: EATA SCSI HBA %.10s\n", drive->name, id->model);
- goto err_misc;
- }
-#endif /* CONFIG_SCSI_EATA || CONFIG_SCSI_EATA_PIO */
-
/*
* WIN_IDENTIFY returns little-endian info,
* WIN_PIDENTIFY *usually* returns little-endian info.
if (strstr(id->model, "E X A B Y T E N E S T"))
goto err_misc;
- printk("%s: %s, ", drive->name, id->model);
+ printk(KERN_INFO "%s: %s, ", drive->name, id->model);
+
drive->present = 1;
drive->dead = 0;
*/
if (cmd == WIN_PIDENTIFY) {
u8 type = (id->config >> 8) & 0x1f;
- printk("ATAPI ");
+
+ printk(KERN_CONT "ATAPI ");
switch (type) {
case ide_floppy:
if (!strstr(id->model, "CD-ROM")) {
if (!strstr(id->model, "oppy") &&
!strstr(id->model, "poyp") &&
!strstr(id->model, "ZIP"))
- printk("cdrom or floppy?, assuming ");
+ printk(KERN_CONT "cdrom or floppy?, assuming ");
if (drive->media != ide_cdrom) {
- printk ("FLOPPY");
+ printk(KERN_CONT "FLOPPY");
drive->removable = 1;
break;
}
/* kludge for Apple PowerBook internal zip */
if (!strstr(id->model, "CD-ROM") &&
strstr(id->model, "ZIP")) {
- printk ("FLOPPY");
+ printk(KERN_CONT "FLOPPY");
type = ide_floppy;
break;
}
#endif
- printk ("CD/DVD-ROM");
+ printk(KERN_CONT "CD/DVD-ROM");
break;
case ide_tape:
- printk ("TAPE");
+ printk(KERN_CONT "TAPE");
break;
case ide_optical:
- printk ("OPTICAL");
+ printk(KERN_CONT "OPTICAL");
drive->removable = 1;
break;
default:
- printk("UNKNOWN (type %d)", type);
+ printk(KERN_CONT "UNKNOWN (type %d)", type);
break;
}
- printk (" drive\n");
+ printk(KERN_CONT " drive\n");
drive->media = type;
/* an ATAPI device ignores DRDY */
drive->ready_stat = 0;
drive->removable = 1;
drive->media = ide_disk;
- printk("%s DISK drive\n", (id->config == 0x848a) ? "CFA" : "ATA" );
+
+ printk(KERN_CONT "%s DISK drive\n",
+ (id->config == 0x848a) ? "CFA" : "ATA");
return;
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;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int use_altstatus = 0, rc;
unsigned long timeout;
u8 s = 0, a = 0;
/* take a deep breath */
msleep(50);
- if (hwif->io_ports[IDE_CONTROL_OFFSET]) {
- a = ide_read_altstatus(drive);
- s = ide_read_status(drive);
+ if (io_ports->ctl_addr) {
+ a = tp_ops->read_altstatus(hwif);
+ s = tp_ops->read_status(hwif);
if ((a ^ s) & ~INDEX_STAT)
/* ancient Seagate drives, broken interfaces */
printk(KERN_INFO "%s: probing with STATUS(0x%02x) "
/* set features register for atapi
* identify command to be sure of reply
*/
- if ((cmd == WIN_PIDENTIFY))
- /* disable dma & overlap */
- hwif->OUTB(0, hwif->io_ports[IDE_FEATURE_OFFSET]);
+ if (cmd == WIN_PIDENTIFY) {
+ ide_task_t task;
+
+ memset(&task, 0, sizeof(task));
+ /* disable DMA & overlap */
+ task.tf_flags = IDE_TFLAG_OUT_FEATURE;
+
+ tp_ops->tf_load(drive, &task);
+ }
/* ask drive for ID */
- hwif->OUTB(cmd, hwif->io_ports[IDE_COMMAND_OFFSET]);
+ tp_ops->exec_command(hwif, cmd);
timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
timeout += jiffies;
}
/* give drive a breather */
msleep(50);
- s = use_altstatus ? ide_read_altstatus(drive)
- : ide_read_status(drive);
+ s = use_altstatus ? tp_ops->read_altstatus(hwif)
+ : tp_ops->read_status(hwif);
} while (s & BUSY_STAT);
/* wait for IRQ and DRQ_STAT */
msleep(50);
- s = ide_read_status(drive);
+ s = tp_ops->read_status(hwif);
if (OK_STAT(s, DRQ_STAT, BAD_R_STAT)) {
unsigned long flags;
/* drive responded with ID */
rc = 0;
/* clear drive IRQ */
- (void)ide_read_status(drive);
+ (void)tp_ops->read_status(hwif);
local_irq_restore(flags);
} else {
/* drive refused ID */
static int try_to_identify (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int retval;
int autoprobe = 0;
unsigned long cookie = 0;
* interrupts during the identify-phase that
* the irq handler isn't expecting.
*/
- if (hwif->io_ports[IDE_CONTROL_OFFSET]) {
+ if (hwif->io_ports.ctl_addr) {
if (!hwif->irq) {
autoprobe = 1;
cookie = probe_irq_on();
}
- ide_set_irq(drive, autoprobe);
+ tp_ops->set_irq(hwif, autoprobe);
}
retval = actual_try_to_identify(drive, cmd);
if (autoprobe) {
int irq;
- ide_set_irq(drive, 0);
+ tp_ops->set_irq(hwif, 0);
/* clear drive IRQ */
- (void)ide_read_status(drive);
+ (void)tp_ops->read_status(hwif);
udelay(5);
irq = probe_irq_off(cookie);
if (!hwif->irq) {
/* Mmmm.. multiple IRQs..
* don't know which was ours
*/
- printk("%s: IRQ probe failed (0x%lx)\n",
+ printk(KERN_ERR "%s: IRQ probe failed (0x%lx)\n",
drive->name, cookie);
}
}
do {
msleep(50);
- stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ stat = hwif->tp_ops->read_status(hwif);
if ((stat & BUSY_STAT) == 0)
return 0;
} while (time_before(jiffies, timeout));
return 1;
}
+static u8 ide_read_device(ide_drive_t *drive)
+{
+ ide_task_t task;
+
+ memset(&task, 0, sizeof(task));
+ task.tf_flags = IDE_TFLAG_IN_DEVICE;
+
+ drive->hwif->tp_ops->tf_read(drive, &task);
+
+ return task.tf.device;
+}
+
/**
* do_probe - probe an IDE device
* @drive: drive to probe
static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int rc;
u8 stat;
return 4;
}
#ifdef DEBUG
- printk("probing for %s: present=%d, media=%d, probetype=%s\n",
+ printk(KERN_INFO "probing for %s: present=%d, media=%d, probetype=%s\n",
drive->name, drive->present, drive->media,
(cmd == WIN_IDENTIFY) ? "ATA" : "ATAPI");
#endif
msleep(50);
SELECT_DRIVE(drive);
msleep(50);
- if (hwif->INB(hwif->io_ports[IDE_SELECT_OFFSET]) != drive->select.all &&
- !drive->present) {
+
+ if (ide_read_device(drive) != drive->select.all && !drive->present) {
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
return 3;
}
- stat = ide_read_status(drive);
+ stat = tp_ops->read_status(hwif);
if (OK_STAT(stat, READY_STAT, BUSY_STAT) ||
drive->present || cmd == WIN_PIDENTIFY) {
rc = try_to_identify(drive,cmd);
}
- stat = ide_read_status(drive);
+ stat = tp_ops->read_status(hwif);
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,
- hwif->io_ports[IDE_SELECT_OFFSET]);
+ SELECT_DRIVE(drive);
msleep(50);
- hwif->OUTB(WIN_SRST,
- hwif->io_ports[IDE_COMMAND_OFFSET]);
+ tp_ops->exec_command(hwif, WIN_SRST);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}
/* ensure drive IRQ is clear */
- stat = ide_read_status(drive);
+ stat = tp_ops->read_status(hwif);
if (rc == 1)
printk(KERN_ERR "%s: no response (status = 0x%02x)\n",
SELECT_DRIVE(&hwif->drives[0]);
msleep(50);
/* ensure drive irq is clear */
- (void)ide_read_status(drive);
+ (void)tp_ops->read_status(hwif);
}
return rc;
}
static void enable_nest (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
u8 stat;
- printk("%s: enabling %s -- ", hwif->name, drive->id->model);
+ printk(KERN_INFO "%s: enabling %s -- ", hwif->name, drive->id->model);
+
SELECT_DRIVE(drive);
msleep(50);
- hwif->OUTB(EXABYTE_ENABLE_NEST, hwif->io_ports[IDE_COMMAND_OFFSET]);
+ tp_ops->exec_command(hwif, EXABYTE_ENABLE_NEST);
if (ide_busy_sleep(hwif)) {
printk(KERN_CONT "failed (timeout)\n");
msleep(50);
- stat = ide_read_status(drive);
+ stat = tp_ops->read_status(hwif);
if (!OK_STAT(stat, 0, BAD_STAT))
printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
return drive->present;
}
-static void hwif_release_dev (struct device *dev)
+static void hwif_release_dev(struct device *dev)
{
ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev);
ret = device_register(&hwif->gendev);
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);
+ hwif->portdev = device_create_drvdata(ide_port_class, &hwif->gendev,
+ MKDEV(0, 0), hwif, 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;
}
/* Ignore disks that we will not probe for later. */
if (!drive->noprobe || drive->present) {
SELECT_DRIVE(drive);
- ide_set_irq(drive, 1);
+ hwif->tp_ops->set_irq(hwif, 1);
mdelay(2);
rc = ide_wait_not_busy(hwif, 35000);
if (rc)
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;
/*
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
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);
}
}
if (m && m->hwgroup && m->hwgroup != new->hwgroup) {
if (!new->hwgroup)
return;
- printk("%s: potential irq problem with %s and %s\n",
+ printk(KERN_WARNING "%s: potential IRQ problem with %s and %s\n",
hwif->name, new->name, m->name);
}
if (!m || m->irq != hwif->irq) /* don't undo a prior perfect match */
mutex_unlock(&ide_cfg_mtx);
}
+static ide_hwif_t *ide_ports[MAX_HWIFS];
+
+void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
+{
+ ide_hwgroup_t *hwgroup = hwif->hwgroup;
+
+ ide_ports[hwif->index] = NULL;
+
+ spin_lock_irq(&ide_lock);
+ /*
+ * Remove us from the hwgroup, and free
+ * the hwgroup if we were the only member
+ */
+ if (hwif->next == hwif) {
+ BUG_ON(hwgroup->hwif != hwif);
+ kfree(hwgroup);
+ } else {
+ /* There is another interface in hwgroup.
+ * Unlink us, and set hwgroup->drive and ->hwif to
+ * something sane.
+ */
+ ide_hwif_t *g = hwgroup->hwif;
+
+ while (g->next != hwif)
+ g = g->next;
+ g->next = hwif->next;
+ if (hwgroup->hwif == hwif) {
+ /* Chose a random hwif for hwgroup->hwif.
+ * It's guaranteed that there are no drives
+ * left in the hwgroup.
+ */
+ BUG_ON(hwgroup->drive != NULL);
+ hwgroup->hwif = g;
+ }
+ BUG_ON(hwgroup->hwif == hwif);
+ }
+ spin_unlock_irq(&ide_lock);
+}
+
/*
* This routine sets up the irq for an ide interface, and creates a new
* hwgroup for the irq/hwif if none was previously assigned.
*/
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;
* Group up with any other hwifs that share our irq(s).
*/
for (index = 0; index < MAX_HWIFS; index++) {
- ide_hwif_t *h = &ide_hwifs[index];
- if (h->hwgroup) { /* scan only initialized hwif's */
+ ide_hwif_t *h = ide_ports[index];
+
+ if (h && h->hwgroup) { /* scan only initialized ports */
if (hwif->irq == h->irq) {
hwif->sharing_irq = h->sharing_irq = 1;
if (hwif->chipset != ide_pci ||
hwgroup->timer.data = (unsigned long) hwgroup;
}
+ ide_ports[hwif->index] = hwif;
+
/*
* Allocate the irq, if not already obtained for another hwif
*/
if (IDE_CHIPSET_IS_PCI(hwif->chipset))
sa = IRQF_SHARED;
- if (hwif->io_ports[IDE_CONTROL_OFFSET])
- /* clear nIEN */
- hwif->OUTB(0x08, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ if (io_ports->ctl_addr)
+ hwif->tp_ops->set_irq(hwif, 1);
if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
goto out_unlink;
}
#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);
+ printk(KERN_INFO "%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name,
+ 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);
+ printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name,
+ io_ports->data_addr, hwif->irq);
#endif /* __mc68000__ */
if (match)
- printk(" (%sed with %s)",
+ printk(KERN_CONT " (%sed with %s)",
hwif->sharing_irq ? "shar" : "serializ", match->name);
- printk("\n");
+ printk(KERN_CONT "\n");
mutex_unlock(&ide_cfg_mtx);
return 0;
{
struct gendisk *p = data;
*part &= (1 << PARTN_BITS) - 1;
- return &p->dev.kobj;
+ return &disk_to_dev(p)->kobj;
}
static int exact_lock(dev_t dev, void *data)
int old_irq;
if (!hwif->irq) {
- if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET])))
- {
- printk("%s: DISABLED, NO IRQ\n", hwif->name);
+ hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
+ if (!hwif->irq) {
+ printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
return 0;
}
}
* 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]))) {
- printk("%s: Disabled unable to get IRQ %d.\n",
+ hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
+ if (!hwif->irq) {
+ printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
hwif->name, old_irq);
goto out;
}
if (init_irq(hwif)) {
- printk("%s: probed IRQ %d and default IRQ %d failed.\n",
+ printk(KERN_ERR "%s: probed IRQ %d and default IRQ %d failed\n",
hwif->name, old_irq, hwif->irq);
goto out;
}
- printk("%s: probed IRQ %d failed, using default.\n",
+ printk(KERN_WARNING "%s: probed IRQ %d failed, using default\n",
hwif->name, hwif->irq);
done:
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++) {
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->init_dev)
+ port_ops->init_dev(drive);
+ }
}
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;
+ 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;
+ /* ->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;
+ if (d->tp_ops)
+ hwif->tp_ops = d->tp_ops;
+
+ /* ->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;
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->dma_base = 0;
+ 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_SERIALIZE) ||
+ ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) {
+ if (hwif->mate)
+ hwif->mate->serialized = hwif->serialized = 1;
+ }
if (d->host_flags & IDE_HFLAG_RQSIZE_256)
hwif->rqsize = 256;
static void ide_port_cable_detect(ide_hwif_t *hwif)
{
- if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+ 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 int ide_sysfs_register_port(ide_hwif_t *hwif)
{
- int i, rc;
+ int i, uninitialized_var(rc);
for (i = 0; ide_port_attrs[i]; i++) {
rc = device_create_file(hwif->portdev, ide_port_attrs[i]);
return rc;
}
-int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
+static unsigned int ide_indexes;
+
+/**
+ * ide_find_port_slot - find free port slot
+ * @d: IDE port info
+ *
+ * Return the new port slot index or -ENOENT if we are out of free slots.
+ */
+
+static int ide_find_port_slot(const struct ide_port_info *d)
+{
+ int idx = -ENOENT;
+ u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1;
+ u8 i = (d && (d->host_flags & IDE_HFLAG_QD_2ND_PORT)) ? 1 : 0;;
+
+ /*
+ * 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).
+ */
+ mutex_lock(&ide_cfg_mtx);
+ if (MAX_HWIFS == 1) {
+ if (ide_indexes == 0 && i == 0)
+ idx = 1;
+ } else {
+ if (bootable) {
+ if ((ide_indexes | i) != (1 << MAX_HWIFS) - 1)
+ idx = ffz(ide_indexes | i);
+ } else {
+ if ((ide_indexes | 3) != (1 << MAX_HWIFS) - 1)
+ idx = ffz(ide_indexes | 3);
+ else if ((ide_indexes & 3) != 3)
+ idx = ffz(ide_indexes);
+ }
+ }
+ if (idx >= 0)
+ ide_indexes |= (1 << idx);
+ mutex_unlock(&ide_cfg_mtx);
+
+ return idx;
+}
+
+static void ide_free_port_slot(int idx)
+{
+ mutex_lock(&ide_cfg_mtx);
+ ide_indexes &= ~(1 << idx);
+ mutex_unlock(&ide_cfg_mtx);
+}
+
+struct ide_host *ide_host_alloc_all(const struct ide_port_info *d,
+ hw_regs_t **hws)
+{
+ struct ide_host *host;
+ int i;
+
+ host = kzalloc(sizeof(*host), GFP_KERNEL);
+ if (host == NULL)
+ return NULL;
+
+ for (i = 0; i < MAX_HWIFS; i++) {
+ ide_hwif_t *hwif;
+ int idx;
+
+ if (hws[i] == NULL)
+ continue;
+
+ hwif = kzalloc(sizeof(*hwif), GFP_KERNEL);
+ if (hwif == NULL)
+ continue;
+
+ idx = ide_find_port_slot(d);
+ if (idx < 0) {
+ printk(KERN_ERR "%s: no free slot for interface\n",
+ d ? d->name : "ide");
+ kfree(hwif);
+ continue;
+ }
+
+ ide_init_port_data(hwif, idx);
+
+ hwif->host = host;
+
+ host->ports[i] = hwif;
+ host->n_ports++;
+ }
+
+ if (host->n_ports == 0) {
+ kfree(host);
+ return NULL;
+ }
+
+ if (hws[0])
+ host->dev[0] = hws[0]->dev;
+
+ if (d)
+ host->host_flags = d->host_flags;
+
+ return host;
+}
+EXPORT_SYMBOL_GPL(ide_host_alloc_all);
+
+struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
+{
+ hw_regs_t *hws_all[MAX_HWIFS];
+ int i;
+
+ for (i = 0; i < MAX_HWIFS; i++)
+ hws_all[i] = (i < 4) ? hws[i] : NULL;
+
+ return ide_host_alloc_all(d, hws_all);
+}
+EXPORT_SYMBOL_GPL(ide_host_alloc);
+
+int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
+ hw_regs_t **hws)
{
ide_hwif_t *hwif, *mate = NULL;
- int i, rc = 0;
+ int i, j = 0;
for (i = 0; i < MAX_HWIFS; i++) {
- if (d == NULL || idx[i] == 0xff) {
+ hwif = host->ports[i];
+
+ if (hwif == NULL) {
mate = NULL;
continue;
}
- hwif = &ide_hwifs[idx[i]];
+ ide_init_port_hw(hwif, hws[i]);
+ ide_port_apply_params(hwif);
+
+ if (d == NULL) {
+ mate = NULL;
+ continue;
+ }
- if (d->chipset != ide_etrax100 && (i & 1) && mate) {
+ if ((i & 1) && mate) {
hwif->mate = mate;
mate->mate = hwif;
}
}
for (i = 0; i < MAX_HWIFS; i++) {
- if (idx[i] == 0xff)
- continue;
+ hwif = host->ports[i];
- 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);
+ if (hwif == NULL)
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++) {
- if (idx[i] == 0xff)
- continue;
-
- hwif = &ide_hwifs[idx[i]];
+ hwif = host->ports[i];
- if (!hwif->present)
+ if (hwif == NULL)
continue;
if (hwif_init(hwif) == 0) {
printk(KERN_INFO "%s: failed to initialize IDE "
"interface\n", hwif->name);
hwif->present = 0;
- rc = -1;
continue;
}
- ide_port_setup_devices(hwif);
+ j++;
+
+ 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++) {
- if (idx[i] == 0xff)
+ hwif = host->ports[i];
+
+ if (hwif == NULL)
continue;
- hwif = &ide_hwifs[idx[i]];
+ if (hwif->chipset == ide_unknown)
+ hwif->chipset = ide_generic;
- if (hwif->present) {
- if (hwif->chipset == ide_unknown)
- hwif->chipset = ide_generic;
+ if (hwif->present)
hwif_register_devices(hwif);
- }
}
for (i = 0; i < MAX_HWIFS; i++) {
- if (idx[i] == 0xff)
+ hwif = host->ports[i];
+
+ if (hwif == NULL)
continue;
- hwif = &ide_hwifs[idx[i]];
+ ide_sysfs_register_port(hwif);
+ ide_proc_register_port(hwif);
- if (hwif->present) {
- ide_sysfs_register_port(hwif);
- ide_proc_register_port(hwif);
+ if (hwif->present)
ide_proc_port_register_devices(hwif);
- }
}
- return rc;
+ return j ? 0 : -1;
+}
+EXPORT_SYMBOL_GPL(ide_host_register);
+
+int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws,
+ struct ide_host **hostp)
+{
+ struct ide_host *host;
+ int rc;
+
+ host = ide_host_alloc(d, hws);
+ if (host == NULL)
+ return -ENOMEM;
+
+ rc = ide_host_register(host, d, hws);
+ if (rc) {
+ ide_host_free(host);
+ return rc;
+ }
+
+ if (hostp)
+ *hostp = host;
+
+ return 0;
}
-EXPORT_SYMBOL_GPL(ide_device_add_all);
+EXPORT_SYMBOL_GPL(ide_host_add);
-int ide_device_add(u8 idx[4], const struct ide_port_info *d)
+void ide_host_free(struct ide_host *host)
{
- u8 idx_all[MAX_HWIFS];
+ ide_hwif_t *hwif;
int i;
- for (i = 0; i < MAX_HWIFS; i++)
- idx_all[i] = (i < 4) ? idx[i] : 0xff;
+ for (i = 0; i < MAX_HWIFS; i++) {
+ hwif = host->ports[i];
+
+ if (hwif == NULL)
+ continue;
+
+ ide_free_port_slot(hwif->index);
+ kfree(hwif);
+ }
+
+ kfree(host);
+}
+EXPORT_SYMBOL_GPL(ide_host_free);
+
+void ide_host_remove(struct ide_host *host)
+{
+ int i;
+
+ for (i = 0; i < MAX_HWIFS; i++) {
+ if (host->ports[i])
+ ide_unregister(host->ports[i]);
+ }
- return ide_device_add_all(idx_all, d);
+ ide_host_free(host);
}
-EXPORT_SYMBOL_GPL(ide_device_add);
+EXPORT_SYMBOL_GPL(ide_host_remove);
void ide_port_scan(ide_hwif_t *hwif)
{
+ ide_port_apply_params(hwif);
ide_port_cable_detect(hwif);
ide_port_init_devices(hwif);
ide_proc_port_register_devices(hwif);
}
EXPORT_SYMBOL_GPL(ide_port_scan);
+
+static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw,
+ u8 port_no, const struct ide_port_info *d,
+ unsigned long config)
+{
+ 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;
+ hw->chipset = d->chipset;
+ hw->config = config;
+
+ hws[port_no] = hw;
+}
+
+int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
+{
+ hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL };
+
+ memset(&hw, 0, sizeof(hw));
+
+ if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
+ ide_legacy_init_one(hws, &hw[0], 0, d, config);
+ ide_legacy_init_one(hws, &hw[1], 1, d, config);
+
+ if (hws[0] == NULL && hws[1] == NULL &&
+ (d->host_flags & IDE_HFLAG_SINGLE))
+ return -ENOENT;
+
+ return ide_host_add(d, hws, NULL);
+}
+EXPORT_SYMBOL_GPL(ide_legacy_device_add);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff