static int proc_ide_read_identify
(char *page, char **start, off_t off, int count, int *eof, void *data)
{
ide_drive_t *drive = (ide_drive_t *)data;
int len = 0, i = 0;
int err = 0;
len = sprintf(page, "\n");
if (drive) {
__le16 *val = (__le16 *)page;
err = taskfile_lib_get_identify(drive, page);
if (!err) {
char *out = (char *)page + SECTOR_SIZE;
page = out;
do {
out += sprintf(out, "%04x%c",
le16_to_cpup(val), (++i & 7) ? ' ' : '\n');
val += 1;
} while (i < SECTOR_SIZE / 2);
len = out - page;
}
}
PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
}
void ide_acpi_port_init_devices(ide_hwif_t *hwif)
{
ide_drive_t *drive;
int i, err;
if (hwif->acpidata == NULL)
return;
/*
* The ACPI spec mandates that we send information
* for both drives, regardless whether they are connected
* or not.
*/
hwif->drives[0].acpidata = &hwif->acpidata->master;
hwif->drives[1].acpidata = &hwif->acpidata->slave;
/*
* Send IDENTIFY for each drive
*/
for (i = 0; i < MAX_DRIVES; i++) {
drive = &hwif->drives[i];
if (!drive->present)
continue;
err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
if (err)
DEBPRINT("identify device %s failed (%d)\n",
drive->name, err);
}
if (ide_noacpionboot) {
DEBPRINT("ACPI methods disabled on boot\n");
return;
}
/* ACPI _PS0 before _STM */
ide_acpi_set_state(hwif, 1);
/*
* ACPI requires us to call _STM on startup
*/
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
for (i = 0; i < MAX_DRIVES; i++) {
drive = &hwif->drives[i];
if (drive->present)
/* Execute ACPI startup code */
ide_acpi_exec_tfs(drive);
}
}
int ide_ata66_check (ide_drive_t *drive, ide_task_t *args)
{
/* SATA has no cable restrictions */
if (HWIF(drive)->sata)
return 0;
if ((args->tfRegister[IDE_COMMAND_OFFSET] == WIN_SETFEATURES) &&
(args->tfRegister[IDE_SECTOR_OFFSET] > XFER_UDMA_2) &&
(args->tfRegister[IDE_FEATURE_OFFSET] == SETFEATURES_XFER)) {
#ifndef CONFIG_IDEDMA_IVB
if ((drive->id->hw_config & 0x6000) == 0) {
#else /* !CONFIG_IDEDMA_IVB */
if (((drive->id->hw_config & 0x2000) == 0) ||
((drive->id->hw_config & 0x4000) == 0)) {
#endif /* CONFIG_IDEDMA_IVB */
printk("%s: Speed warnings UDMA 3/4/5 is not "
"functional.\n", drive->name);
return 1;
}
if (!HWIF(drive)->udma_four) {
printk("%s: Speed warnings UDMA 3/4/5 is not "
"functional.\n",
HWIF(drive)->name);
return 1;
}
}
return 0;
}
EXPORT_SYMBOL(ide_ata66_check);
/*
* Backside of HDIO_DRIVE_CMD call of SETFEATURES_XFER.
* 1 : Safe to update drive->id DMA registers.
* 0 : OOPs not allowed.
*/
int set_transfer (ide_drive_t *drive, ide_task_t *args)
{
if ((args->tfRegister[IDE_COMMAND_OFFSET] == WIN_SETFEATURES) &&
(args->tfRegister[IDE_SECTOR_OFFSET] >= XFER_SW_DMA_0) &&
(args->tfRegister[IDE_FEATURE_OFFSET] == SETFEATURES_XFER) &&
(drive->id->dma_ultra ||
drive->id->dma_mword ||
drive->id->dma_1word))
return 1;
return 0;
}
EXPORT_SYMBOL(set_transfer);
u8 ide_auto_reduce_xfer (ide_drive_t *drive)
{
if (!drive->crc_count)
return drive->current_speed;
drive->crc_count = 0;
switch(drive->current_speed) {
case XFER_UDMA_7: return XFER_UDMA_6;
case XFER_UDMA_6: return XFER_UDMA_5;
case XFER_UDMA_5: return XFER_UDMA_4;
case XFER_UDMA_4: return XFER_UDMA_3;
case XFER_UDMA_3: return XFER_UDMA_2;
case XFER_UDMA_2: return XFER_UDMA_1;
case XFER_UDMA_1: return XFER_UDMA_0;
/*
* OOPS we do not goto non Ultra DMA modes
* without iCRC's available we force
* the system to PIO and make the user
* invoke the ATA-1 ATA-2 DMA modes.
*/
case XFER_UDMA_0:
default: return XFER_PIO_4;
}
}
EXPORT_SYMBOL(ide_auto_reduce_xfer);
/*
* Update the
*/
int ide_driveid_update (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct hd_driveid *id;
#if 0
id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
if (!id)
return 0;
taskfile_lib_get_identify(drive, (char *)&id);
ide_fix_driveid(id);
if (id) {
drive->id->dma_ultra = id->dma_ultra;
drive->id->dma_mword = id->dma_mword;
drive->id->dma_1word = id->dma_1word;
/* anything more ? */
kfree(id);
}
return 1;
#else
/*
* Re-read drive->id for possible DMA mode
* change (copied from ide-probe.c)
*/
unsigned long timeout, flags;
SELECT_MASK(drive, 1);
if (IDE_CONTROL_REG)
hwif->OUTB(drive->ctl,IDE_CONTROL_REG);
ide_delay_50ms();
hwif->OUTB(WIN_IDENTIFY, IDE_COMMAND_REG);
timeout = jiffies + WAIT_WORSTCASE;
do {
if (time_after(jiffies, timeout)) {
SELECT_MASK(drive, 0);
return 0; /* drive timed-out */
}
ide_delay_50ms(); /* give drive a breather */
} while (hwif->INB(IDE_ALTSTATUS_REG) & BUSY_STAT);
ide_delay_50ms(); /* wait for IRQ and DRQ_STAT */
if (!OK_STAT(hwif->INB(IDE_STATUS_REG),DRQ_STAT,BAD_R_STAT)) {
SELECT_MASK(drive, 0);
printk("%s: CHECK for good STATUS\n", drive->name);
return 0;
}
local_irq_save(flags);
SELECT_MASK(drive, 0);
id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
if (!id) {
local_irq_restore(flags);
return 0;
}
ata_input_data(drive, id, SECTOR_WORDS);
(void) hwif->INB(IDE_STATUS_REG); /* clear drive IRQ */
local_irq_enable();
local_irq_restore(flags);
ide_fix_driveid(id);
drive->id->dma_ultra = id->dma_ultra;
drive->id->dma_mword = id->dma_mword;
drive->id->dma_1word = id->dma_1word;
/* anything more ? */
kfree(id);
return 1;
#endif
}
/*
* Update the
*/
int ide_driveid_update (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct hd_driveid *id;
#if 0
id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
if (!id)
return 0;
taskfile_lib_get_identify(drive, (char *)&id);
ide_fix_driveid(id);
if (id) {
drive->id->dma_ultra = id->dma_ultra;
drive->id->dma_mword = id->dma_mword;
drive->id->dma_1word = id->dma_1word;
/* anything more ? */
kfree(id);
}
return 1;
#else
/*
* Re-read drive->id for possible DMA mode
* change (copied from ide-probe.c)
*/
unsigned long timeout, flags;
SELECT_MASK(drive, 1);
if (IDE_CONTROL_REG)
hwif->OUTB(drive->ctl,IDE_CONTROL_REG);
msleep(50);
hwif->OUTB(WIN_IDENTIFY, IDE_COMMAND_REG);
timeout = jiffies + WAIT_WORSTCASE;
do {
if (time_after(jiffies, timeout)) {
SELECT_MASK(drive, 0);
return 0; /* drive timed-out */
}
msleep(50); /* give drive a breather */
} while (hwif->INB(IDE_ALTSTATUS_REG) & BUSY_STAT);
msleep(50); /* wait for IRQ and DRQ_STAT */
if (!OK_STAT(hwif->INB(IDE_STATUS_REG),DRQ_STAT,BAD_R_STAT)) {
SELECT_MASK(drive, 0);
printk("%s: CHECK for good STATUS\n", drive->name);
return 0;
}
local_irq_save(flags);
SELECT_MASK(drive, 0);
id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
if (!id) {
local_irq_restore(flags);
return 0;
}
ata_input_data(drive, id, SECTOR_WORDS);
(void) hwif->INB(IDE_STATUS_REG); /* clear drive IRQ */
local_irq_enable();
local_irq_restore(flags);
ide_fix_driveid(id);
if (id) {
drive->id->dma_ultra = id->dma_ultra;
drive->id->dma_mword = id->dma_mword;
drive->id->dma_1word = id->dma_1word;
/* anything more ? */
kfree(id);
}
return 1;
#endif
}
