/*
* 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;
tf_outb(tf->lbah, io_ports->lbah_addr);
if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
- tf_outb((tf->device & HIHI) | drive->select.all,
+ tf_outb((tf->device & HIHI) | drive->select,
io_ports->device_addr);
}
EXPORT_SYMBOL_GPL(ide_tf_load);
.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 }
};
printk(KERN_DEBUG "%s: skipping word 93 validity check\n",
drive->name);
- if (ide_dev_is_sata(id) && !ivb)
+ if (ata_id_is_sata(id) && !ivb)
return 1;
if (hwif->cbl != ATA_CBL_PATA80 && !ivb)
return 1;
no_80w:
- if (drive->udma33_warned == 1)
+ if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED)
return 0;
printk(KERN_WARNING "%s: %s side 80-wire cable detection failed, "
drive->name,
hwif->cbl == ATA_CBL_PATA80 ? "drive" : "host");
- drive->udma33_warned = 1;
+ drive->dev_flags |= IDE_DFLAG_UDMA33_WARNED;
return 0;
}
}
local_irq_save(flags);
SELECT_MASK(drive, 0);
- id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
+ id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
if (!id) {
local_irq_restore(flags);
return 0;
kfree(id);
- if (drive->using_dma && ide_id_dma_bug(drive))
+ if ((drive->dev_flags & IDE_DFLAG_USING_DMA) && ide_id_dma_bug(drive))
ide_dma_off(drive);
return 1;
udelay(1);
SELECT_DRIVE(drive);
- SELECT_MASK(drive, 0);
+ SELECT_MASK(drive, 1);
udelay(1);
tp_ops->set_irq(hwif, 0);
skip:
#ifdef CONFIG_BLK_DEV_IDEDMA
- if (speed >= XFER_SW_DMA_0 && drive->using_dma)
+ if (speed >= XFER_SW_DMA_0 && (drive->dev_flags & IDE_DFLAG_USING_DMA))
hwif->dma_ops->dma_host_set(drive, 1);
else if (hwif->dma_ops) /* check if host supports DMA */
ide_dma_off_quietly(drive);
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 void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
+{
+ static const char *err_master_vals[] =
+ { NULL, "passed", "formatter device error",
+ "sector buffer error", "ECC circuitry error",
+ "controlling MPU error" };
+
+ u8 err_master = err & 0x7f;
+
+ printk(KERN_ERR "%s: reset: master: ", hwif->name);
+ if (err_master && err_master < 6)
+ printk(KERN_CONT "%s", err_master_vals[err_master]);
+ else
+ printk(KERN_CONT "error (0x%02x?)", err);
+ if (err & 0x80)
+ printk(KERN_CONT "; slave: failed");
+ printk(KERN_CONT "\n");
+}
+
/*
* reset_pollfunc() gets invoked to poll the interface for completion every 50ms
* during an ide reset operation. If the drives have not yet responded,
*/
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;
drive->failures++;
err = -EIO;
} else {
- printk("%s: reset: ", hwif->name);
tmp = ide_read_error(drive);
if (tmp == 1) {
- printk("success\n");
+ printk(KERN_INFO "%s: reset: success\n", hwif->name);
drive->failures = 0;
} else {
+ ide_reset_report_error(hwif, tmp);
drive->failures++;
- printk("master: ");
- switch (tmp & 0x7f) {
- case 1: printk("passed");
- break;
- case 2: printk("formatter device error");
- break;
- case 3: printk("sector buffer error");
- break;
- case 4: printk("ECC circuitry error");
- break;
- case 5: printk("controlling MPU error");
- break;
- default:printk("error (0x%02x?)", tmp);
- }
- if (tmp & 0x80)
- printk("; slave: failed");
- printk("\n");
err = -EIO;
}
}
out:
- hwgroup->polling = 0; /* done polling */
+ hwif->polling = 0; /* done polling */
ide_complete_drive_reset(drive, err);
return ide_stopped;
}
drive->special.all = 0;
drive->special.b.set_geometry = legacy;
drive->special.b.recalibrate = legacy;
+
drive->mult_count = 0;
- if (!drive->keep_settings && !drive->using_dma)
+ drive->dev_flags &= ~IDE_DFLAG_PARKED;
+
+ if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
+ (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
drive->mult_req = 0;
+
if (drive->mult_req != drive->mult_count)
drive->special.b.set_multmode = 1;
}
if (drive->media == ide_disk)
ide_disk_pre_reset(drive);
else
- drive->post_reset = 1;
+ drive->dev_flags |= IDE_DFLAG_POST_RESET;
- if (drive->using_dma) {
+ if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
if (drive->crc_count)
ide_check_dma_crc(drive);
else
ide_dma_off(drive);
}
- if (!drive->keep_settings) {
- if (!drive->using_dma) {
- drive->unmask = 0;
+ if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
+ if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
+ drive->dev_flags &= ~IDE_DFLAG_UNMASK;
drive->io_32bit = 0;
}
return;
*/
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