*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
+#include <linux/bitops.h>
+#include <linux/nmi.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/io.h>
-#include <asm/bitops.h>
/*
* Conventional PIO operations for ATA devices
hwif->INSL = ide_insl;
}
-EXPORT_SYMBOL(default_hwif_iops);
-
/*
* MMIO operations, typically used for SATA controllers
*/
EXPORT_SYMBOL(default_hwif_mmiops);
-void default_hwif_transport (ide_hwif_t *hwif)
-{
- hwif->ata_input_data = ata_input_data;
- hwif->ata_output_data = ata_output_data;
- hwif->atapi_input_bytes = atapi_input_bytes;
- hwif->atapi_output_bytes = atapi_output_bytes;
-}
-
-EXPORT_SYMBOL(default_hwif_transport);
-
u32 ide_read_24 (ide_drive_t *drive)
{
u8 hcyl = HWIF(drive)->INB(IDE_HCYL_REG);
return (hcyl<<16)|(lcyl<<8)|sect;
}
-EXPORT_SYMBOL(ide_read_24);
-
void SELECT_DRIVE (ide_drive_t *drive)
{
if (HWIF(drive)->selectproc)
HWIF(drive)->OUTB(drive->ctl|2, IDE_CONTROL_REG);
}
-EXPORT_SYMBOL(SELECT_INTERRUPT);
-
void SELECT_MASK (ide_drive_t *drive, int mask)
{
if (HWIF(drive)->maskproc)
HWIF(drive)->maskproc(drive, mask);
}
-EXPORT_SYMBOL(SELECT_MASK);
-
void QUIRK_LIST (ide_drive_t *drive)
{
if (HWIF(drive)->quirkproc)
drive->quirk_list = HWIF(drive)->quirkproc(drive);
}
-EXPORT_SYMBOL(QUIRK_LIST);
-
/*
* Some localbus EIDE interfaces require a special access sequence
* when using 32-bit I/O instructions to transfer data. We call this
* of the sector count register location, with interrupts disabled
* to ensure that the reads all happen together.
*/
-void ata_vlb_sync (ide_drive_t *drive, unsigned long port)
+static void ata_vlb_sync(ide_drive_t *drive, unsigned long port)
{
(void) HWIF(drive)->INB(port);
(void) HWIF(drive)->INB(port);
(void) HWIF(drive)->INB(port);
}
-EXPORT_SYMBOL(ata_vlb_sync);
-
/*
* This is used for most PIO data transfers *from* the IDE interface
*/
-void ata_input_data (ide_drive_t *drive, void *buffer, u32 wcount)
+static void ata_input_data(ide_drive_t *drive, void *buffer, u32 wcount)
{
ide_hwif_t *hwif = HWIF(drive);
u8 io_32bit = drive->io_32bit;
}
}
-EXPORT_SYMBOL(ata_input_data);
-
/*
* This is used for most PIO data transfers *to* the IDE interface
*/
-void ata_output_data (ide_drive_t *drive, void *buffer, u32 wcount)
+static void ata_output_data(ide_drive_t *drive, void *buffer, u32 wcount)
{
ide_hwif_t *hwif = HWIF(drive);
u8 io_32bit = drive->io_32bit;
}
}
-EXPORT_SYMBOL(ata_output_data);
-
/*
* The following routines are mainly used by the ATAPI drivers.
*
* extra byte allocated for the buffer.
*/
-void atapi_input_bytes (ide_drive_t *drive, void *buffer, u32 bytecount)
+static void atapi_input_bytes(ide_drive_t *drive, void *buffer, u32 bytecount)
{
ide_hwif_t *hwif = HWIF(drive);
hwif->INSW(IDE_DATA_REG, ((u8 *)buffer)+(bytecount & ~0x03), 1);
}
-EXPORT_SYMBOL(atapi_input_bytes);
-
-void atapi_output_bytes (ide_drive_t *drive, void *buffer, u32 bytecount)
+static void atapi_output_bytes(ide_drive_t *drive, void *buffer, u32 bytecount)
{
ide_hwif_t *hwif = HWIF(drive);
hwif->OUTSW(IDE_DATA_REG, ((u8*)buffer)+(bytecount & ~0x03), 1);
}
-EXPORT_SYMBOL(atapi_output_bytes);
+void default_hwif_transport(ide_hwif_t *hwif)
+{
+ hwif->ata_input_data = ata_input_data;
+ hwif->ata_output_data = ata_output_data;
+ hwif->atapi_input_bytes = atapi_input_bytes;
+ hwif->atapi_output_bytes = atapi_output_bytes;
+}
/*
* Beginning of Taskfile OPCODE Library and feature sets.
#endif
}
+/* FIXME: exported for use by the USB storage (isd200.c) code only */
EXPORT_SYMBOL(ide_fix_driveid);
void ide_fixstring (u8 *s, const int bytecount, const int byteswap)
return 0;
}
-EXPORT_SYMBOL(wait_for_ready);
-
/*
* This routine busy-waits for the drive status to be not "busy".
* It then checks the status for all of the "good" bits and none
break;
local_irq_restore(flags);
- *startstop = DRIVER(drive)->error(drive, "status timeout", stat);
+ *startstop = ide_error(drive, "status timeout", stat);
return 1;
}
}
if (OK_STAT((stat = hwif->INB(IDE_STATUS_REG)), good, bad))
return 0;
}
- *startstop = DRIVER(drive)->error(drive, "status error", stat);
+ *startstop = ide_error(drive, "status error", stat);
return 1;
}
*/
u8 eighty_ninty_three (ide_drive_t *drive)
{
-#if 0
- if (!HWIF(drive)->udma_four)
+ if(HWIF(drive)->udma_four == 0)
return 0;
- if (drive->id->major_rev_num) {
- int hssbd = 0;
- int i;
- /*
- * Determine highest Supported SPEC
- */
- for (i=1; i<=15; i++)
- if (drive->id->major_rev_num & (1<<i))
- hssbd++;
-
- switch (hssbd) {
- case 7:
- case 6:
- case 5:
- /* ATA-4 and older do not support above Ultra 33 */
- default:
- return 0;
- }
- }
-
- return ((u8) (
-#ifndef CONFIG_IDEDMA_IVB
- (drive->id->hw_config & 0x4000) &&
-#endif /* CONFIG_IDEDMA_IVB */
- (drive->id->hw_config & 0x6000)) ? 1 : 0);
+ printk(KERN_INFO "%s: hw_config=%04x\n",
+ drive->name, drive->id->hw_config);
-#else
-
- return ((u8) ((HWIF(drive)->udma_four) &&
+ /* Check for SATA but only if we are ATA5 or higher */
+ if (drive->id->hw_config == 0 && (drive->id->major_rev_num & 0x7FE0))
+ return 1;
+ if (!(drive->id->hw_config & 0x6000))
+ return 0;
#ifndef CONFIG_IDEDMA_IVB
- (drive->id->hw_config & 0x4000) &&
+ if(!(drive->id->hw_config & 0x4000))
+ return 0;
#endif /* CONFIG_IDEDMA_IVB */
- (drive->id->hw_config & 0x6000)) ? 1 : 0);
+/*
+ * FIXME: enable this after fixing master/slave IDENTIFY order,
+ * also ignore the result if the slave device is pre-ATA3 one
+ */
+#if 0
+ if (!(drive->id->hw_config & 0x2000))
+ return 0;
#endif
+ return 1;
}
EXPORT_SYMBOL(eighty_ninty_three);
return 0;
}
-EXPORT_SYMBOL(ide_ata66_check);
-
/*
* Backside of HDIO_DRIVE_CMD call of SETFEATURES_XFER.
* 1 : Safe to update drive->id DMA registers.
return 0;
}
-EXPORT_SYMBOL(set_transfer);
-
-u8 ide_auto_reduce_xfer (ide_drive_t *drive)
+#ifdef CONFIG_BLK_DEV_IDEDMA
+static u8 ide_auto_reduce_xfer (ide_drive_t *drive)
{
if (!drive->crc_count)
return drive->current_speed;
default: return XFER_PIO_4;
}
}
-
-EXPORT_SYMBOL(ide_auto_reduce_xfer);
+#endif /* CONFIG_BLK_DEV_IDEDMA */
/*
* Update the
#endif
}
-EXPORT_SYMBOL(ide_driveid_update);
-
/*
* Similar to ide_wait_stat(), except it never calls ide_error internally.
* This is a kludge to handle the new ide_config_drive_speed() function,
*
* See also ide_execute_command
*/
-void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
+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);
add_timer(&hwgroup->timer);
}
-EXPORT_SYMBOL(__ide_set_handler);
-
void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
spin_lock_irqsave(&ide_lock, flags);
- if(hwgroup->handler)
- BUG();
+ BUG_ON(hwgroup->handler);
hwgroup->handler = handler;
hwgroup->expiry = expiry;
hwgroup->timer.expires = jiffies + timeout;
printk("%s: ATAPI reset complete\n", drive->name);
} else {
if (time_before(jiffies, hwgroup->poll_timeout)) {
- if (HWGROUP(drive)->handler != NULL)
- BUG();
+ BUG_ON(HWGROUP(drive)->handler != NULL);
ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
/* end of polling */
- hwgroup->poll_timeout = 0;
+ hwgroup->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->poll_timeout = 0;
+ hwgroup->polling = 0;
+ hwgroup->resetting = 0;
return ide_stopped;
}
if (!OK_STAT(tmp = hwif->INB(IDE_STATUS_REG), 0, BUSY_STAT)) {
if (time_before(jiffies, hwgroup->poll_timeout)) {
- if (HWGROUP(drive)->handler != NULL)
- BUG();
+ BUG_ON(HWGROUP(drive)->handler != NULL);
ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
printk("\n");
}
}
- hwgroup->poll_timeout = 0; /* done polling */
+ hwgroup->polling = 0; /* done polling */
+ hwgroup->resetting = 0; /* done reset attempt */
return ide_stopped;
}
#endif
}
-void pre_reset (ide_drive_t *drive)
+static void ide_disk_pre_reset(ide_drive_t *drive)
+{
+ int legacy = (drive->id->cfs_enable_2 & 0x0400) ? 0 : 1;
+
+ drive->special.all = 0;
+ drive->special.b.set_geometry = legacy;
+ drive->special.b.recalibrate = legacy;
+ if (OK_TO_RESET_CONTROLLER)
+ drive->mult_count = 0;
+ if (!drive->keep_settings && !drive->using_dma)
+ drive->mult_req = 0;
+ if (drive->mult_req != drive->mult_count)
+ drive->special.b.set_multmode = 1;
+}
+
+static void pre_reset(ide_drive_t *drive)
{
- DRIVER(drive)->pre_reset(drive);
+ if (drive->media == ide_disk)
+ ide_disk_pre_reset(drive);
+ else
+ drive->post_reset = 1;
if (!drive->keep_settings) {
if (drive->using_dma) {
if (HWIF(drive)->pre_reset != NULL)
HWIF(drive)->pre_reset(drive);
+ if (drive->current_speed != 0xff)
+ drive->desired_speed = drive->current_speed;
+ drive->current_speed = 0xff;
}
/*
hwgroup = HWGROUP(drive);
/* We must not reset with running handlers */
- if(hwgroup->handler != NULL)
- BUG();
+ BUG_ON(hwgroup->handler != NULL);
/* For an ATAPI device, first try an ATAPI SRST. */
if (drive->media != ide_disk && !do_not_try_atapi) {
+ hwgroup->resetting = 1;
pre_reset(drive);
SELECT_DRIVE(drive);
udelay (20);
- hwif->OUTB(WIN_SRST, IDE_COMMAND_REG);
+ hwif->OUTBSYNC(drive, WIN_SRST, IDE_COMMAND_REG);
+ ndelay(400);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwgroup->polling = 1;
__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
spin_unlock_irqrestore(&ide_lock, flags);
return ide_started;
return ide_stopped;
}
+ hwgroup->resetting = 1;
/*
* Note that we also set nIEN while resetting the device,
* to mask unwanted interrupts from the interface during the reset.
/* more than enough time */
udelay(10);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwgroup->polling = 1;
__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/*
*/
if (stat == 0xff)
return -ENODEV;
+ touch_softlockup_watchdog();
+ touch_nmi_watchdog();
}
return -EBUSY;
}
git://git.onelab.eu / linux-2.6.git / blobdiff