Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[safe/jmp/linux-2.6] / drivers / ide / ide-probe.c
index 9740670..7f264ed 100644 (file)
@@ -228,15 +228,9 @@ static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
        m[ATA_ID_PROD_LEN - 1] = '\0';
 
        if (strstr(m, "E X A B Y T E N E S T"))
-               goto err_misc;
-
-       drive->dev_flags |= IDE_DFLAG_PRESENT;
-       drive->dev_flags &= ~IDE_DFLAG_DEAD;
-
-       return;
-err_misc:
-       kfree(id);
-       drive->dev_flags &= ~IDE_DFLAG_PRESENT;
+               drive->dev_flags &= ~IDE_DFLAG_PRESENT;
+       else
+               drive->dev_flags |= IDE_DFLAG_PRESENT;
 }
 
 /**
@@ -266,7 +260,7 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
         * during the identify phase that the IRQ handler isn't expecting.
         */
        if (io_ports->ctl_addr)
-               tp_ops->set_irq(hwif, 0);
+               tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS);
 
        /* take a deep breath */
        msleep(50);
@@ -289,13 +283,11 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
         * identify command to be sure of reply
         */
        if (cmd == ATA_CMD_ID_ATAPI) {
-               ide_task_t task;
+               struct ide_taskfile tf;
 
-               memset(&task, 0, sizeof(task));
+               memset(&tf, 0, sizeof(tf));
                /* disable DMA & overlap */
-               task.tf_flags = IDE_TFLAG_OUT_FEATURE;
-
-               tp_ops->tf_load(drive, &task);
+               tp_ops->tf_load(drive, &tf, IDE_VALID_FEATURE);
        }
 
        /* ask drive for ID */
@@ -343,14 +335,11 @@ int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)
 
 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;
+       struct ide_taskfile tf;
 
-       drive->hwif->tp_ops->tf_read(drive, &task);
+       drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_DEVICE);
 
-       return task.tf.device;
+       return tf.device;
 }
 
 /**
@@ -396,13 +385,13 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
         * (e.g. crw9624 as drive0 with disk as slave)
         */
        msleep(50);
-       SELECT_DRIVE(drive);
+       tp_ops->dev_select(drive);
        msleep(50);
 
        if (ide_read_device(drive) != drive->select && present == 0) {
                if (drive->dn & 1) {
                        /* exit with drive0 selected */
-                       SELECT_DRIVE(hwif->devices[0]);
+                       tp_ops->dev_select(hwif->devices[0]);
                        /* allow ATA_BUSY to assert & clear */
                        msleep(50);
                }
@@ -428,7 +417,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
                        printk(KERN_ERR "%s: no response (status = 0x%02x), "
                                        "resetting drive\n", drive->name, stat);
                        msleep(50);
-                       SELECT_DRIVE(drive);
+                       tp_ops->dev_select(drive);
                        msleep(50);
                        tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
                        (void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0);
@@ -447,7 +436,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
        }
        if (drive->dn & 1) {
                /* exit with drive0 selected */
-               SELECT_DRIVE(hwif->devices[0]);
+               tp_ops->dev_select(hwif->devices[0]);
                msleep(50);
                /* ensure drive irq is clear */
                (void)tp_ops->read_status(hwif);
@@ -505,8 +494,7 @@ static u8 probe_for_drive(ide_drive_t *drive)
                }
 
                if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-                       /* drive not found */
-                       return 0;
+                       goto out_free;
 
                /* identification failed? */
                if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
@@ -530,7 +518,7 @@ static u8 probe_for_drive(ide_drive_t *drive)
        }
 
        if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-               return 0;
+               goto out_free;
 
        /* The drive wasn't being helpful. Add generic info only */
        if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
@@ -543,7 +531,10 @@ static u8 probe_for_drive(ide_drive_t *drive)
                ide_disk_init_mult_count(drive);
        }
 
-       return !!(drive->dev_flags & IDE_DFLAG_PRESENT);
+       return 1;
+out_free:
+       kfree(drive->id);
+       return 0;
 }
 
 static void hwif_release_dev(struct device *dev)
@@ -609,6 +600,7 @@ out:
 
 static int ide_port_wait_ready(ide_hwif_t *hwif)
 {
+       const struct ide_tp_ops *tp_ops = hwif->tp_ops;
        ide_drive_t *drive;
        int i, rc;
 
@@ -631,8 +623,8 @@ static int ide_port_wait_ready(ide_hwif_t *hwif)
                /* Ignore disks that we will not probe for later. */
                if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0 ||
                    (drive->dev_flags & IDE_DFLAG_PRESENT)) {
-                       SELECT_DRIVE(drive);
-                       hwif->tp_ops->set_irq(hwif, 1);
+                       tp_ops->dev_select(drive);
+                       tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
                        mdelay(2);
                        rc = ide_wait_not_busy(hwif, 35000);
                        if (rc)
@@ -644,7 +636,7 @@ static int ide_port_wait_ready(ide_hwif_t *hwif)
 out:
        /* Exit function with master reselected (let's be sane) */
        if (i)
-               SELECT_DRIVE(hwif->devices[0]);
+               tp_ops->dev_select(hwif->devices[0]);
 
        return rc;
 }
@@ -841,34 +833,19 @@ static int 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;
-       irq_handler_t irq_handler;
-       int sa = 0;
+       struct ide_host *host = hwif->host;
+       irq_handler_t irq_handler = host->irq_handler;
+       int sa = host->irq_flags;
 
-       irq_handler = hwif->host->irq_handler;
        if (irq_handler == NULL)
                irq_handler = ide_intr;
 
-#if defined(__mc68000__)
-       sa = IRQF_SHARED;
-#endif /* __mc68000__ */
-
-       if (hwif->chipset == ide_pci)
-               sa = IRQF_SHARED;
-
        if (io_ports->ctl_addr)
-               hwif->tp_ops->set_irq(hwif, 1);
+               hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
 
        if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif))
                goto out_up;
 
-       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__)
        printk(KERN_INFO "%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name,
                io_ports->data_addr, io_ports->status_addr,
@@ -961,20 +938,16 @@ EXPORT_SYMBOL_GPL(ide_init_disk);
 static void drive_release_dev (struct device *dev)
 {
        ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
-       ide_hwif_t *hwif = drive->hwif;
 
        ide_proc_unregister_device(drive);
 
-       spin_lock_irq(&hwif->lock);
+       blk_cleanup_queue(drive->queue);
+       drive->queue = NULL;
+
        kfree(drive->id);
        drive->id = NULL;
+
        drive->dev_flags &= ~IDE_DFLAG_PRESENT;
-       /* Messed up locking ... */
-       spin_unlock_irq(&hwif->lock);
-       blk_cleanup_queue(drive->queue);
-       spin_lock_irq(&hwif->lock);
-       drive->queue = NULL;
-       spin_unlock_irq(&hwif->lock);
 
        complete(&drive->gendev_rel_comp);
 }
@@ -1080,7 +1053,7 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
                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)
+       if ((hwif->host_flags & IDE_HFLAG_DTC2278) == 0 || hwif->channel == 0)
                hwif->port_ops = d->port_ops;
 
        hwif->swdma_mask = d->swdma_mask;
@@ -1114,6 +1087,13 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
 
        if (d->max_sectors)
                hwif->rqsize = d->max_sectors;
+       else {
+               if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
+                   (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA))
+                       hwif->rqsize = 256;
+               else
+                       hwif->rqsize = 65536;
+       }
 
        /* call chipset specific routine for each enabled port */
        if (d->init_hwif)
@@ -1326,7 +1306,10 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
 
        if (d) {
                host->init_chipset = d->init_chipset;
+               host->get_lock     = d->get_lock;
+               host->release_lock = d->release_lock;
                host->host_flags = d->host_flags;
+               host->irq_flags = d->irq_flags;
        }
 
        return host;
@@ -1372,20 +1355,15 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
                ide_init_port_hw(hwif, hws[i]);
                ide_port_apply_params(hwif);
 
-               if (d == NULL) {
-                       mate = NULL;
-               } else {
-                       if ((i & 1) && mate) {
-                               hwif->mate = mate;
-                               mate->mate = hwif;
-                       }
-
-                       mate = (i & 1) ? NULL : hwif;
-
-                       ide_init_port(hwif, i & 1, d);
-                       ide_port_cable_detect(hwif);
+               if ((i & 1) && mate) {
+                       hwif->mate = mate;
+                       mate->mate = hwif;
                }
 
+               mate = (i & 1) ? NULL : hwif;
+
+               ide_init_port(hwif, i & 1, d);
+               ide_port_cable_detect(hwif);
                ide_port_init_devices(hwif);
        }
 
@@ -1396,8 +1374,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
                if (ide_probe_port(hwif) == 0)
                        hwif->present = 1;
 
-               if (hwif->chipset != ide_4drives || !hwif->mate ||
-                   !hwif->mate->present) {
+               if ((hwif->host_flags & IDE_HFLAG_4DRIVES) == 0 ||
+                   hwif->mate == NULL || hwif->mate->present == 0) {
                        if (ide_register_port(hwif)) {
                                ide_disable_port(hwif);
                                continue;