#include <linux/major.h>
#include <linux/errno.h>
#include <linux/genhd.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/ide.h>
#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);
-
-__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
-EXPORT_SYMBOL(ide_lock);
-
-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);
- }
-}
-
-/* Called with ide_lock held. */
-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) {
- spin_unlock_irq(&ide_lock);
- device_unregister(&drive->gendev);
- wait_for_completion(&drive->gendev_rel_comp);
- spin_lock_irq(&ide_lock);
- }
- }
-}
-
-void ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- mutex_lock(&ide_cfg_mtx);
- spin_lock_irq(&ide_lock);
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- ide_port_init_devices_data(hwif);
- spin_unlock_irq(&ide_lock);
- 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);
-
- spin_lock_irq(&ide_lock);
- if (hwif->present) {
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- }
- spin_unlock_irq(&ide_lock);
-
- 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);
-
- if (hwif->dma_base)
- 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
- */
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-ide_devset_get(io_32bit, io_32bit);
-
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
- return -EPERM;
-
- if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
- return -EINVAL;
-
- drive->io_32bit = arg;
-
- return 0;
-}
-
-ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
-
-static int set_ksettings(ide_drive_t *drive, int arg)
-{
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
- else
- drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
-
- return 0;
-}
-
-ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
-
-static int set_using_dma(ide_drive_t *drive, int arg)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
- int err = -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (ata_id_has_dma(drive->id) == 0)
- goto out;
-
- if (drive->hwif->dma_ops == NULL)
- goto out;
-
- err = 0;
-
- if (arg) {
- if (ide_set_dma(drive))
- err = -EIO;
- } else
- ide_dma_off(drive);
-
-out:
- return err;
-#else
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- return -EPERM;
-#endif
-}
-
-/*
- * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
- */
-static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
-{
- switch (req_pio) {
- case 202:
- case 201:
- case 200:
- case 102:
- case 101:
- case 100:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
- case 9:
- case 8:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
- case 7:
- case 6:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
- default:
- return 0;
- }
-}
-
-static int set_pio_mode(ide_drive_t *drive, int arg)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (arg < 0 || arg > 255)
- return -EINVAL;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return -ENOSYS;
-
- if (set_pio_mode_abuse(drive->hwif, arg)) {
- if (arg == 8 || arg == 9) {
- unsigned long flags;
-
- /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&ide_lock, flags);
- port_ops->set_pio_mode(drive, arg);
- spin_unlock_irqrestore(&ide_lock, flags);
- } else
- port_ops->set_pio_mode(drive, arg);
- } else {
- int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-
- ide_set_pio(drive, arg);
-
- if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
- if (keep_dma)
- ide_dma_on(drive);
- }
- }
-
- return 0;
-}
-
-ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
-
-static int set_unmaskirq(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
- return -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_UNMASK;
- else
- drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-
- return 0;
-}
-
-#define ide_gen_devset_rw(_name, _func) \
-__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
-
-ide_gen_devset_rw(io_32bit, io_32bit);
-ide_gen_devset_rw(keepsettings, ksettings);
-ide_gen_devset_rw(unmaskirq, unmaskirq);
-ide_gen_devset_rw(using_dma, using_dma);
-__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
-
-static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
-{
- ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
- ide_hwif_t *hwif = HWIF(drive);
- struct request *rq;
- struct request_pm_state rqpm;
- ide_task_t args;
- int ret;
-
- /* call ACPI _GTM only once */
- if ((drive->dn & 1) == 0 || pair == NULL)
- ide_acpi_get_timing(hwif);
-
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
- rq->cmd_type = REQ_TYPE_PM_SUSPEND;
- rq->special = &args;
- rq->data = &rqpm;
- rqpm.pm_step = IDE_PM_START_SUSPEND;
- if (mesg.event == PM_EVENT_PRETHAW)
- mesg.event = PM_EVENT_FREEZE;
- rqpm.pm_state = mesg.event;
-
- ret = blk_execute_rq(drive->queue, NULL, rq, 0);
- blk_put_request(rq);
-
- /* call ACPI _PS3 only after both devices are suspended */
- if (ret == 0 && ((drive->dn & 1) || pair == NULL))
- ide_acpi_set_state(hwif, 0);
-
- return ret;
-}
-
-static int generic_ide_resume(struct device *dev)
-{
- ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
- ide_hwif_t *hwif = HWIF(drive);
- struct request *rq;
- struct request_pm_state rqpm;
- ide_task_t args;
- int err;
-
- /* call ACPI _PS0 / _STM only once */
- if ((drive->dn & 1) == 0 || pair == NULL) {
- ide_acpi_set_state(hwif, 1);
- ide_acpi_push_timing(hwif);
- }
-
- ide_acpi_exec_tfs(drive);
-
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
- rq->cmd_type = REQ_TYPE_PM_RESUME;
- rq->cmd_flags |= REQ_PREEMPT;
- rq->special = &args;
- rq->data = &rqpm;
- rqpm.pm_step = IDE_PM_START_RESUME;
- rqpm.pm_state = PM_EVENT_ON;
-
- err = blk_execute_rq(drive->queue, NULL, rq, 1);
- blk_put_request(rq);
-
- if (err == 0 && dev->driver) {
- ide_driver_t *drv = to_ide_driver(dev->driver);
-
- if (drv->resume)
- drv->resume(drive);
- }
-
- return err;
-}
-
/**
* ide_device_get - get an additional reference to a ide_drive_t
* @drive: device to get a reference to
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_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);
int a, b, i, j = 1;
unsigned int *dev_param_mask = (unsigned int *)kp->arg;
+ /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
sscanf(s, "%d.%d", &a, &b) != 2)
return -EINVAL;
if (j)
*dev_param_mask |= (1 << i);
else
- *dev_param_mask &= (1 << i);
+ *dev_param_mask &= ~(1 << i);
return 0;
}
module_param_call(noflush, ide_set_dev_param_mask, NULL, &ide_noflush, 0);
MODULE_PARM_DESC(noflush, "disable flush requests for a device");
+static unsigned int ide_nohpa;
+
+module_param_call(nohpa, ide_set_dev_param_mask, NULL, &ide_nohpa, 0);
+MODULE_PARM_DESC(nohpa, "disable Host Protected Area for a device");
+
static unsigned int ide_noprobe;
module_param_call(noprobe, ide_set_dev_param_mask, NULL, &ide_noprobe, 0);
{
int a, b, c = 0, h = 0, s = 0, i, j = 1;
+ /* controller . device (0 or 1) : Cylinders , Heads , Sectors */
+ /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
return -EINVAL;
if (j)
ide_disks |= (1 << i);
else
- ide_disks &= (1 << i);
+ ide_disks &= ~(1 << i);
ide_disks_chs[i].cyl = c;
ide_disks_chs[i].head = h;
drive->name);
drive->dev_flags |= IDE_DFLAG_NOFLUSH;
}
+ if (ide_nohpa & (1 << i)) {
+ printk(KERN_INFO "ide: disabling Host Protected Area for %s\n",
+ drive->name);
+ drive->dev_flags |= IDE_DFLAG_NOHPA;
+ }
if (ide_noprobe & (1 << i)) {
printk(KERN_INFO "ide: skipping probe for %s\n", drive->name);
drive->dev_flags |= IDE_DFLAG_NOPROBE;
{
int i, j = 1;
+ /* controller (ignore) */
+ /* controller : 1 (ignore) | 0 (use) */
if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
return -EINVAL;
if (j)
ide_ignore_cable |= (1 << i);
else
- ide_ignore_cable &= (1 << i);
+ ide_ignore_cable &= ~(1 << i);
return 0;
}
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);
}
/*
goto out_port_class;
}
+ ide_acpi_init();
+
proc_ide_create();
return 0;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff