/*
* Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2003 Red Hat <alan@redhat.com>
+ * Copyright (C) 2003 Red Hat
*
*/
}
EXPORT_SYMBOL_GPL(ide_read_altstatus);
-u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
- else
- return inb(hwif->dma_base + ATA_DMA_STATUS);
-}
-EXPORT_SYMBOL_GPL(ide_read_sff_dma_status);
-
void ide_set_irq(ide_hwif_t *hwif, int on)
{
u8 ctl = ATA_DEVCTL_OBS;
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
*/
int drive_is_ready (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 stat = 0;
if (drive->waiting_for_dma)
return hwif->dma_ops->dma_test_irq(drive);
-#if 0
- /* need to guarantee 400ns since last command was issued */
- udelay(1);
-#endif
-
/*
* We do a passive status test under shared PCI interrupts on
* cards that truly share the ATA side interrupt, but may also share
* an interrupt with another pci card/device. We make no assumptions
* about possible isa-pnp and pci-pnp issues yet.
*/
- if (hwif->io_ports.ctl_addr)
+ if (hwif->io_ports.ctl_addr &&
+ (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
stat = hwif->tp_ops->read_altstatus(hwif);
else
/* Note: this may clear a pending IRQ!! */
stat = tp_ops->read_status(hwif);
if (stat & ATA_BUSY) {
- local_irq_set(flags);
+ local_save_flags(flags);
+ local_irq_enable_in_hardirq();
timeout += jiffies;
while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
if (time_after(jiffies, timeout)) {
{ "TSSTcorp CDDVDW SH-S202N" , "SB01" },
{ "TSSTcorp CDDVDW SH-S202H" , "SB00" },
{ "TSSTcorp CDDVDW SH-S202H" , "SB01" },
+ { "SAMSUNG SP0822N" , "WA100-10" },
{ NULL , NULL }
};
udelay(1);
SELECT_DRIVE(drive);
- SELECT_MASK(drive, 0);
+ SELECT_MASK(drive, 1);
udelay(1);
tp_ops->set_irq(hwif, 0);
static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
-
- BUG_ON(hwgroup->handler);
- hwgroup->handler = handler;
- hwgroup->expiry = expiry;
- hwgroup->timer.expires = jiffies + timeout;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
+ ide_hwif_t *hwif = drive->hwif;
+
+ BUG_ON(hwif->handler);
+ hwif->handler = handler;
+ hwif->expiry = expiry;
+ hwif->timer.expires = jiffies + timeout;
+ hwif->req_gen_timer = hwif->req_gen;
+ add_timer(&hwif->timer);
}
void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
+ ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
- spin_lock_irqsave(&ide_lock, flags);
+
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_set_handler);
void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
unsigned timeout, ide_expiry_t *expiry)
{
+ ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
- ide_hwif_t *hwif = HWIF(drive);
- spin_lock_irqsave(&ide_lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
hwif->tp_ops->exec_command(hwif, cmd);
/*
* FIXME: we could skip this delay with care on non shared devices
*/
ndelay(400);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_execute_command);
ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
- spin_lock_irqsave(&ide_lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
ndelay(400);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
ide_end_request(drive, err ? err : 1, 0);
static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
u8 stat;
SELECT_DRIVE(drive);
if (OK_STAT(stat, 0, ATA_BUSY))
printk("%s: ATAPI reset complete\n", drive->name);
else {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
/* end of polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
printk("%s: ATAPI reset timed-out, status=0x%02x\n",
drive->name, stat);
/* do it the old fashioned way */
return do_reset1(drive, 1);
}
/* done polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
ide_complete_drive_reset(drive, 0);
return ide_stopped;
}
*/
static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
const struct ide_port_ops *port_ops = hwif->port_ops;
u8 tmp;
int err = 0;
tmp = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(tmp, 0, ATA_BUSY)) {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
}
out:
- hwgroup->polling = 0; /* done polling */
+ hwif->polling = 0; /* done polling */
ide_complete_drive_reset(drive, err);
return ide_stopped;
}
drive->special.b.recalibrate = legacy;
drive->mult_count = 0;
+ drive->dev_flags &= ~IDE_DFLAG_PARKED;
if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
(drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
*/
static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
{
- unsigned int unit;
- unsigned long flags;
- ide_hwif_t *hwif;
- ide_hwgroup_t *hwgroup;
- struct ide_io_ports *io_ports;
- const struct ide_tp_ops *tp_ops;
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_port_ops *port_ops;
+ ide_drive_t *tdrive;
+ unsigned long flags, timeout;
+ int i;
+ DEFINE_WAIT(wait);
- spin_lock_irqsave(&ide_lock, flags);
- hwif = HWIF(drive);
- hwgroup = HWGROUP(drive);
-
- io_ports = &hwif->io_ports;
-
- tp_ops = hwif->tp_ops;
+ spin_lock_irqsave(&hwif->lock, flags);
/* We must not reset with running handlers */
- BUG_ON(hwgroup->handler != NULL);
+ BUG_ON(hwif->handler != NULL);
/* For an ATAPI device, first try an ATAPI SRST. */
if (drive->media != ide_disk && !do_not_try_atapi) {
udelay (20);
tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
ndelay(400);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}
+ /* We must not disturb devices in the IDE_DFLAG_PARKED state. */
+ do {
+ unsigned long now;
+
+ prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
+ timeout = jiffies;
+ ide_port_for_each_dev(i, tdrive, hwif) {
+ if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
+ tdrive->dev_flags & IDE_DFLAG_PARKED &&
+ time_after(tdrive->sleep, timeout))
+ timeout = tdrive->sleep;
+ }
+
+ now = jiffies;
+ if (time_before_eq(timeout, now))
+ break;
+
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ timeout = schedule_timeout_uninterruptible(timeout - now);
+ spin_lock_irqsave(&hwif->lock, flags);
+ } while (timeout);
+ finish_wait(&ide_park_wq, &wait);
+
/*
* First, reset any device state data we were maintaining
* for any of the drives on this interface.
*/
- for (unit = 0; unit < MAX_DRIVES; ++unit)
- pre_reset(&hwif->drives[unit]);
+ ide_port_for_each_dev(i, tdrive, hwif)
+ pre_reset(tdrive);
if (io_ports->ctl_addr == 0) {
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
ide_complete_drive_reset(drive, -ENXIO);
return ide_stopped;
}
tp_ops->set_irq(hwif, drive->quirk_list == 2);
/* more than enough time */
udelay(10);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/*
if (port_ops && port_ops->resetproc)
port_ops->resetproc(drive);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}
}
return -EBUSY;
}
-
-EXPORT_SYMBOL_GPL(ide_wait_not_busy);
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff