#include <linux/completion.h>
#include <linux/device.h>
-
-/* default maximum number of failures */
-#define IDE_DEFAULT_MAX_FAILURES 1
-
struct class *ide_port_class;
-static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
- IDE2_MAJOR, IDE3_MAJOR,
- IDE4_MAJOR, IDE5_MAJOR,
- IDE6_MAJOR, IDE7_MAJOR,
- IDE8_MAJOR, IDE9_MAJOR };
-
-DEFINE_MUTEX(ide_cfg_mtx);
-
-static void ide_port_init_devices_data(ide_hwif_t *);
-
-/*
- * Do not even *think* about calling this!
- */
-void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
-{
- /* bulk initialize hwif & drive info with zeros */
- memset(hwif, 0, sizeof(ide_hwif_t));
-
- /* fill in any non-zero initial values */
- hwif->index = index;
- hwif->major = ide_hwif_to_major[index];
-
- hwif->name[0] = 'i';
- hwif->name[1] = 'd';
- hwif->name[2] = 'e';
- hwif->name[3] = '0' + index;
-
- init_completion(&hwif->gendev_rel_comp);
-
- hwif->tp_ops = &default_tp_ops;
-
- ide_port_init_devices_data(hwif);
-}
-
-static void ide_port_init_devices_data(ide_hwif_t *hwif)
-{
- int unit;
-
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
- u8 j = (hwif->index * MAX_DRIVES) + unit;
-
- memset(drive, 0, sizeof(*drive));
-
- drive->media = ide_disk;
- drive->select = (unit << 4) | ATA_DEVICE_OBS;
- drive->hwif = hwif;
- drive->ready_stat = ATA_DRDY;
- drive->bad_wstat = BAD_W_STAT;
- drive->special.b.recalibrate = 1;
- drive->special.b.set_geometry = 1;
- drive->name[0] = 'h';
- drive->name[1] = 'd';
- drive->name[2] = 'a' + j;
- drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
-
- INIT_LIST_HEAD(&drive->list);
- init_completion(&drive->gendev_rel_comp);
- }
-}
-
-static void __ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- int i;
-
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
-
- if (drive->dev_flags & IDE_DFLAG_PRESENT) {
- device_unregister(&drive->gendev);
- wait_for_completion(&drive->gendev_rel_comp);
- }
- }
-}
-
-void ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- mutex_lock(&ide_cfg_mtx);
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- ide_port_init_devices_data(hwif);
- mutex_unlock(&ide_cfg_mtx);
-}
-EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
-
-/**
- * ide_unregister - free an IDE interface
- * @hwif: IDE interface
- *
- * Perform the final unregister of an IDE interface. At the moment
- * we don't refcount interfaces so this will also get split up.
- *
- * Locking:
- * The caller must not hold the IDE locks
- * The drive present/vanishing is not yet properly locked
- * Take care with the callbacks. These have been split to avoid
- * deadlocking the IDE layer. The shutdown callback is called
- * before we take the lock and free resources. It is up to the
- * caller to be sure there is no pending I/O here, and that
- * the interface will not be reopened (present/vanishing locking
- * isn't yet done BTW). After we commit to the final kill we
- * call the cleanup callback with the ide locks held.
- *
- * Unregister restores the hwif structures to the default state.
- * This is raving bonkers.
- */
-
-void ide_unregister(ide_hwif_t *hwif)
-{
- ide_hwif_t *g;
- ide_hwgroup_t *hwgroup;
- int irq_count = 0;
-
- BUG_ON(in_interrupt());
- BUG_ON(irqs_disabled());
-
- mutex_lock(&ide_cfg_mtx);
-
- if (hwif->present) {
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- }
-
- ide_proc_unregister_port(hwif);
-
- hwgroup = hwif->hwgroup;
- /*
- * free the irq if we were the only hwif using it
- */
- g = hwgroup->hwif;
- do {
- if (g->irq == hwif->irq)
- ++irq_count;
- g = g->next;
- } while (g != hwgroup->hwif);
- if (irq_count == 1)
- free_irq(hwif->irq, hwgroup);
-
- ide_remove_port_from_hwgroup(hwif);
-
- device_unregister(hwif->portdev);
- device_unregister(&hwif->gendev);
- wait_for_completion(&hwif->gendev_rel_comp);
-
- /*
- * Remove us from the kernel's knowledge
- */
- blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
- kfree(hwif->sg_table);
- unregister_blkdev(hwif->major, hwif->name);
-
- ide_release_dma_engine(hwif);
-
- mutex_unlock(&ide_cfg_mtx);
-}
-
-void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
-{
- memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
- hwif->irq = hw->irq;
- hwif->chipset = hw->chipset;
- hwif->dev = hw->dev;
- hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
- hwif->ack_intr = hw->ack_intr;
- hwif->config_data = hw->config;
-}
-
/*
* Locks for IDE setting functionality
*/
static int set_pio_mode(ide_drive_t *drive, int arg)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
const struct ide_port_ops *port_ops = hwif->port_ops;
if (arg < 0 || arg > 255)
unsigned long flags;
/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
port_ops->set_pio_mode(drive, arg);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
} else
port_ops->set_pio_mode(drive, arg);
} else {
return 1;
}
-static char *media_string(ide_drive_t *drive)
-{
- switch (drive->media) {
- case ide_disk:
- return "disk";
- case ide_cdrom:
- return "cdrom";
- case ide_tape:
- return "tape";
- case ide_floppy:
- return "floppy";
- case ide_optical:
- return "optical";
- default:
- return "UNKNOWN";
- }
-}
-
-static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", media_string(drive));
-}
-
-static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", drive->name);
-}
-
-static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "ide:m-%s\n", media_string(drive));
-}
-
-static ssize_t model_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_PROD]);
-}
-
-static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_FW_REV]);
-}
-
-static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_SERNO]);
-}
-
-static struct device_attribute ide_dev_attrs[] = {
- __ATTR_RO(media),
- __ATTR_RO(drivename),
- __ATTR_RO(modalias),
- __ATTR_RO(model),
- __ATTR_RO(firmware),
- __ATTR(serial, 0400, serial_show, NULL),
- __ATTR(unload_heads, 0644, ide_park_show, ide_park_store),
- __ATTR_NULL
-};
-
static int ide_uevent(struct device *dev, struct kobj_uevent_env *env)
{
ide_drive_t *drive = to_ide_device(dev);
- add_uevent_var(env, "MEDIA=%s", media_string(drive));
+ add_uevent_var(env, "MEDIA=%s", ide_media_string(drive));
add_uevent_var(env, "DRIVENAME=%s", drive->name);
- add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive));
+ add_uevent_var(env, "MODALIAS=ide:m-%s", ide_media_string(drive));
return 0;
}
static int generic_ide_probe(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
return drv->probe ? drv->probe(drive) : -ENODEV;
}
static int generic_ide_remove(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
if (drv->remove)
drv->remove(drive);
static void generic_ide_shutdown(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
if (dev->driver && drv->shutdown)
drv->shutdown(drive);
void ide_port_apply_params(ide_hwif_t *hwif)
{
+ ide_drive_t *drive;
int i;
if (ide_ignore_cable & (1 << hwif->index)) {
hwif->cbl = ATA_CBL_PATA40_SHORT;
}
- for (i = 0; i < MAX_DRIVES; i++)
- ide_dev_apply_params(&hwif->drives[i], i);
+ ide_port_for_each_dev(i, drive, hwif)
+ ide_dev_apply_params(drive, i);
}
/*
git.openpandora.org / pandora-kernel.git / blobdiff