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linux/drivers/ide/pci/pdc202xx_old.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* linux/drivers/ide/pci/pdc202xx_old.c Version 0.36 Sept 11, 2002
*
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
*
* Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
* compiled into the kernel if you have more than one card installed.
* Note that BIOS v1.29 is reported to fix the problem. Since this is
* safe chipset tuning, including this support is harmless
*
* Promise Ultra66 cards with BIOS v1.11 this
* compiled into the kernel if you have more than one card installed.
*
* Promise Ultra100 cards.
*
* The latest chipset code will support the following ::
* Three Ultra33 controllers and 12 drives.
* 8 are UDMA supported and 4 are limited to DMA mode 2 multi-word.
* The 8/4 ratio is a BIOS code limit by promise.
*
* UNLESS you enable "CONFIG_PDC202XX_BURST"
*
*/
/*
* Portions Copyright (C) 1999 Promise Technology, Inc.
* Author: Frank Tiernan (frankt@promise.com)
* Released under terms of General Public License
*/
#include <linux/config.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <asm/io.h>
#include <asm/irq.h>
#define PDC202_DEBUG_CABLE 0
#define PDC202XX_DEBUG_DRIVE_INFO 0
static const char *pdc_quirk_drives[] = {
"QUANTUM FIREBALLlct08 08",
"QUANTUM FIREBALLP KA6.4",
"QUANTUM FIREBALLP KA9.1",
"QUANTUM FIREBALLP LM20.4",
"QUANTUM FIREBALLP KX13.6",
"QUANTUM FIREBALLP KX20.5",
"QUANTUM FIREBALLP KX27.3",
"QUANTUM FIREBALLP LM20.5",
NULL
};
/* A Register */
#define SYNC_ERRDY_EN 0xC0
#define SYNC_IN 0x80 /* control bit, different for master vs. slave drives */
#define ERRDY_EN 0x40 /* control bit, different for master vs. slave drives */
#define IORDY_EN 0x20 /* PIO: IOREADY */
#define PREFETCH_EN 0x10 /* PIO: PREFETCH */
#define PA3 0x08 /* PIO"A" timing */
#define PA2 0x04 /* PIO"A" timing */
#define PA1 0x02 /* PIO"A" timing */
#define PA0 0x01 /* PIO"A" timing */
/* B Register */
#define MB2 0x80 /* DMA"B" timing */
#define MB1 0x40 /* DMA"B" timing */
#define MB0 0x20 /* DMA"B" timing */
#define PB4 0x10 /* PIO_FORCE 1:0 */
#define PB3 0x08 /* PIO"B" timing */ /* PIO flow Control mode */
#define PB2 0x04 /* PIO"B" timing */ /* PIO 4 */
#define PB1 0x02 /* PIO"B" timing */ /* PIO 3 half */
#define PB0 0x01 /* PIO"B" timing */ /* PIO 3 other half */
/* C Register */
#define IORDYp_NO_SPEED 0x4F
#define SPEED_DIS 0x0F
#define DMARQp 0x80
#define IORDYp 0x40
#define DMAR_EN 0x20
#define DMAW_EN 0x10
#define MC3 0x08 /* DMA"C" timing */
#define MC2 0x04 /* DMA"C" timing */
#define MC1 0x02 /* DMA"C" timing */
#define MC0 0x01 /* DMA"C" timing */
#if 0
unsigned long bibma = pci_resource_start(dev, 4);
u8 hi = 0, lo = 0;
u8 sc1c = inb_p((u16)bibma + 0x1c);
u8 sc1e = inb_p((u16)bibma + 0x1e);
u8 sc1f = inb_p((u16)bibma + 0x1f);
p += sprintf(p, "Host Mode : %s\n",
(sc1f & 0x08) ? "Tri-Stated" : "Normal");
p += sprintf(p, "Bus Clocking : %s\n",
((sc1f & 0xC0) == 0xC0) ? "100 External" :
((sc1f & 0x80) == 0x80) ? "66 External" :
((sc1f & 0x40) == 0x40) ? "33 External" : "33 PCI Internal");
p += sprintf(p, "IO pad select : %s mA\n",
((sc1c & 0x03) == 0x03) ? "10" :
((sc1c & 0x02) == 0x02) ? "8" :
((sc1c & 0x01) == 0x01) ? "6" :
((sc1c & 0x00) == 0x00) ? "4" : "??");
hi = sc1e >> 4;
lo = sc1e & 0xf;
p += sprintf(p, "Status Polling Period : %d\n", hi);
p += sprintf(p, "Interrupt Check Status Polling Delay : %d\n", lo);
#endif
static u8 pdc202xx_ratemask (ide_drive_t *drive)
{
u8 mode;
switch(HWIF(drive)->pci_dev->device) {
case PCI_DEVICE_ID_PROMISE_20267:
case PCI_DEVICE_ID_PROMISE_20265:
mode = 3;
break;
case PCI_DEVICE_ID_PROMISE_20263:
case PCI_DEVICE_ID_PROMISE_20262:
mode = 2;
break;
case PCI_DEVICE_ID_PROMISE_20246:
return 1;
default:
return 0;
}
if (!eighty_ninty_three(drive))
mode = min(mode, (u8)1);
return mode;
}
static int check_in_drive_lists (ide_drive_t *drive, const char **list)
{
struct hd_driveid *id = drive->id;
if (pdc_quirk_drives == list) {
while (*list) {
if (strstr(id->model, *list++)) {
return 2;
}
}
} else {
while (*list) {
if (!strcmp(*list++,id->model)) {
return 1;
}
}
}
return 0;
}
static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
u8 drive_pci = 0x60 + (drive->dn << 2);
u8 speed = ide_rate_filter(pdc202xx_ratemask(drive), xferspeed);
u32 drive_conf;
u8 AP, BP, CP, DP;
u8 TA = 0, TB = 0, TC = 0;
if ((drive->media != ide_disk) && (speed < XFER_SW_DMA_0))
return -1;
pci_read_config_dword(dev, drive_pci, &drive_conf);
pci_read_config_byte(dev, (drive_pci), &AP);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
pci_read_config_byte(dev, (drive_pci)|0x03, &DP);
if (speed < XFER_SW_DMA_0) {
if ((AP & 0x0F) || (BP & 0x07)) {
/* clear PIO modes of lower 8421 bits of A Register */
pci_write_config_byte(dev, (drive_pci), AP &~0x0F);
pci_read_config_byte(dev, (drive_pci), &AP);
/* clear PIO modes of lower 421 bits of B Register */
pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x07);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
pci_read_config_byte(dev, (drive_pci), &AP);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
}
} else {
if ((BP & 0xF0) && (CP & 0x0F)) {
/* clear DMA modes of upper 842 bits of B Register */
/* clear PIO forced mode upper 1 bit of B Register */
pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xF0);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
/* clear DMA modes of lower 8421 bits of C Register */
pci_write_config_byte(dev, (drive_pci)|0x02, CP &~0x0F);
pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
}
}
pci_read_config_byte(dev, (drive_pci), &AP);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
switch(speed) {
case XFER_UDMA_6: speed = XFER_UDMA_5;
case XFER_UDMA_5:
case XFER_UDMA_4: TB = 0x20; TC = 0x01; break;
case XFER_UDMA_2: TB = 0x20; TC = 0x01; break;
case XFER_UDMA_3:
case XFER_UDMA_1: TB = 0x40; TC = 0x02; break;
case XFER_UDMA_0:
case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break;
case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break;
case XFER_MW_DMA_0:
case XFER_SW_DMA_2: TB = 0x60; TC = 0x05; break;
case XFER_SW_DMA_1: TB = 0x80; TC = 0x06; break;
case XFER_SW_DMA_0: TB = 0xC0; TC = 0x0B; break;
case XFER_PIO_4: TA = 0x01; TB = 0x04; break;
case XFER_PIO_3: TA = 0x02; TB = 0x06; break;
case XFER_PIO_2: TA = 0x03; TB = 0x08; break;
case XFER_PIO_1: TA = 0x05; TB = 0x0C; break;
case XFER_PIO_0:
default: TA = 0x09; TB = 0x13; break;
}
if (speed < XFER_SW_DMA_0) {
pci_write_config_byte(dev, (drive_pci), AP|TA);
pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
} else {
pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
pci_write_config_byte(dev, (drive_pci)|0x02, CP|TC);
}
#if PDC202XX_DEBUG_DRIVE_INFO
printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
drive->name, ide_xfer_verbose(speed),
drive->dn, drive_conf);
pci_read_config_dword(dev, drive_pci, &drive_conf);
printk("0x%08x\n", drive_conf);
#endif /* PDC202XX_DEBUG_DRIVE_INFO */
return (ide_config_drive_speed(drive, speed));
}
/* 0 1 2 3 4 5 6 7 8
* 960, 480, 390, 300, 240, 180, 120, 90, 60
* 180, 150, 120, 90, 60
* DMA_Speed
* 180, 120, 90, 90, 90, 60, 30
* 11, 5, 4, 3, 2, 1, 0
*/
static void config_chipset_for_pio (ide_drive_t *drive, u8 pio)
{
u8 speed = 0;
if (pio == 5) pio = 4;
speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
pdc202xx_tune_chipset(drive, speed);
}
static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
{
u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
pci_read_config_word(hwif->pci_dev, 0x50, &CIS);
return (CIS & mask) ? 1 : 0;
}
/*
* Set the control register to use the 66MHz system
* clock for UDMA 3/4/5 mode operation when necessary.
*
* It may also be possible to leave the 66MHz clock on
* and readjust the timing parameters.
*/
static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
{
unsigned long clock_reg = hwif->dma_master + 0x11;
u8 clock = hwif->INB(clock_reg);
hwif->OUTB(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
}
static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
{
unsigned long clock_reg = hwif->dma_master + 0x11;
u8 clock = hwif->INB(clock_reg);
hwif->OUTB(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
}
static int config_chipset_for_dma (ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
u32 drive_conf = 0;
u8 drive_pci = 0x60 + (drive->dn << 2);
u8 test1 = 0, test2 = 0, speed = -1;
u8 AP = 0, cable = 0;
u8 ultra_66 = ((id->dma_ultra & 0x0010) ||
(id->dma_ultra & 0x0008)) ? 1 : 0;
if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
cable = pdc202xx_old_cable_detect(hwif);
else
ultra_66 = 0;
if (ultra_66 && cable) {
printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
}
if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
pdc_old_disable_66MHz_clock(drive->hwif);
drive_pci = 0x60 + (drive->dn << 2);
pci_read_config_dword(dev, drive_pci, &drive_conf);
if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4))
goto chipset_is_set;
pci_read_config_byte(dev, drive_pci, &test1);
if (!(test1 & SYNC_ERRDY_EN)) {
if (drive->select.b.unit & 0x01) {
pci_read_config_byte(dev, drive_pci - 4, &test2);
if ((test2 & SYNC_ERRDY_EN) &&
!(test1 & SYNC_ERRDY_EN)) {
pci_write_config_byte(dev, drive_pci,
test1|SYNC_ERRDY_EN);
}
} else {
pci_write_config_byte(dev, drive_pci,
test1|SYNC_ERRDY_EN);
}
}
chipset_is_set:
if (drive->media == ide_disk) {
pci_read_config_byte(dev, (drive_pci), &AP);
if (id->capability & 4) /* IORDY_EN */
pci_write_config_byte(dev, (drive_pci), AP|IORDY_EN);
pci_read_config_byte(dev, (drive_pci), &AP);
if (drive->media == ide_disk) /* PREFETCH_EN */
pci_write_config_byte(dev, (drive_pci), AP|PREFETCH_EN);
}
speed = ide_dma_speed(drive, pdc202xx_ratemask(drive));
if (!(speed)) {
/* restore original pci-config space */
pci_write_config_dword(dev, drive_pci, drive_conf);
hwif->tuneproc(drive, 5);
return 0;
}
(void) hwif->speedproc(drive, speed);
return ide_dma_enable(drive);
}
static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
struct hd_driveid *id = drive->id;
drive->init_speed = 0;
if (id && (id->capability & 1) && drive->autodma) {
if (ide_use_dma(drive)) {
if (config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
}
goto fast_ata_pio;
} else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio:
hwif->tuneproc(drive, 5);
return hwif->ide_dma_off_quietly(drive);
}
/* IORDY not supported */
return 0;
}
static int pdc202xx_quirkproc (ide_drive_t *drive)
{
return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
}
static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
{
if (drive->current_speed > XFER_UDMA_2)
pdc_old_enable_66MHz_clock(drive->hwif);
if (drive->addressing == 1) {
struct request *rq = HWGROUP(drive)->rq;
ide_hwif_t *hwif = HWIF(drive);
// struct pci_dev *dev = hwif->pci_dev;
// unsgned long high_16 = pci_resource_start(dev, 4);
unsigned long high_16 = hwif->dma_master;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u32 word_count = 0;
u8 clock = hwif->INB(high_16 + 0x11);
hwif->OUTB(clock|(hwif->channel ? 0x08 : 0x02), high_16+0x11);
word_count = (rq->nr_sectors << 8);
word_count = (rq_data_dir(rq) == READ) ?
word_count | 0x05000000 :
word_count | 0x06000000;
hwif->OUTL(word_count, atapi_reg);
}
ide_dma_start(drive);
}
static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
{
if (drive->addressing == 1) {
ide_hwif_t *hwif = HWIF(drive);
// unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
unsigned long high_16 = hwif->dma_master;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u8 clock = 0;
hwif->OUTL(0, atapi_reg); /* zero out extra */
clock = hwif->INB(high_16 + 0x11);
hwif->OUTB(clock & ~(hwif->channel ? 0x08:0x02), high_16+0x11);
}
if (drive->current_speed > XFER_UDMA_2)
pdc_old_disable_66MHz_clock(drive->hwif);
return __ide_dma_end(drive);
}
static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
// struct pci_dev *dev = hwif->pci_dev;
// unsigned long high_16 = pci_resource_start(dev, 4);
unsigned long high_16 = hwif->dma_master;
u8 dma_stat = hwif->INB(hwif->dma_status);
u8 sc1d = hwif->INB((high_16 + 0x001d));
if (hwif->channel) {
/* bit7: Error, bit6: Interrupting, bit5: FIFO Full, bit4: FIFO Empty */
if ((sc1d & 0x50) == 0x50)
goto somebody_else;
else if ((sc1d & 0x40) == 0x40)
return (dma_stat & 4) == 4;
} else {
/* bit3: Error, bit2: Interrupting, bit1: FIFO Full, bit0: FIFO Empty */
if ((sc1d & 0x05) == 0x05)
goto somebody_else;
else if ((sc1d & 0x04) == 0x04)
return (dma_stat & 4) == 4;
}
somebody_else:
return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
}
static int pdc202xx_ide_dma_lostirq(ide_drive_t *drive)
{
if (HWIF(drive)->resetproc != NULL)
HWIF(drive)->resetproc(drive);
return __ide_dma_lostirq(drive);
}
static int pdc202xx_ide_dma_timeout(ide_drive_t *drive)
{
if (HWIF(drive)->resetproc != NULL)
HWIF(drive)->resetproc(drive);
return __ide_dma_timeout(drive);
}
static void pdc202xx_reset_host (ide_hwif_t *hwif)
{
#ifdef CONFIG_BLK_DEV_IDEDMA
// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
unsigned long high_16 = hwif->dma_master;
#else /* !CONFIG_BLK_DEV_IDEDMA */
unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
#endif /* CONFIG_BLK_DEV_IDEDMA */
u8 udma_speed_flag = hwif->INB(high_16|0x001f);
hwif->OUTB((udma_speed_flag | 0x10), (high_16|0x001f));
mdelay(100);
hwif->OUTB((udma_speed_flag & ~0x10), (high_16|0x001f));
mdelay(2000); /* 2 seconds ?! */
printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
hwif->channel ? "Secondary" : "Primary");
}
static void pdc202xx_reset (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
ide_hwif_t *mate = hwif->mate;
pdc202xx_reset_host(hwif);
pdc202xx_reset_host(mate);
#if 0
/*
* FIXME: Have to kick all the drives again :-/
* What a pain in the ACE!
*/
if (hwif->present) {
u16 hunit = 0;
for (hunit = 0; hunit < MAX_DRIVES; ++hunit) {
ide_drive_t *hdrive = &hwif->drives[hunit];
if (hdrive->present) {
if (hwif->ide_dma_check)
hwif->ide_dma_check(hdrive);
else
hwif->tuneproc(hdrive, 5);
}
}
}
if (mate->present) {
u16 munit = 0;
for (munit = 0; munit < MAX_DRIVES; ++munit) {
ide_drive_t *mdrive = &mate->drives[munit];
if (mdrive->present) {
if (mate->ide_dma_check)
mate->ide_dma_check(mdrive);
else
mate->tuneproc(mdrive, 5);
}
}
}
#else
hwif->tuneproc(drive, 5);
#endif
}
/*
* Since SUN Cobalt is attempting to do this operation, I should disclose
* this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date
* HOTSWAP ATA Infrastructure.
*/
static int pdc202xx_tristate (ide_drive_t * drive, int state)
{
ide_hwif_t *hwif = HWIF(drive);
// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
unsigned long high_16 = hwif->dma_master;
u8 sc1f = hwif->INB(high_16|0x001f);
if (!hwif)
return -EINVAL;
// hwif->bus_state = state;
if (state) {
hwif->OUTB(sc1f | 0x08, (high_16|0x001f));
} else {
hwif->OUTB(sc1f & ~0x08, (high_16|0x001f));
}
return 0;
}
static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev, const char *name)
{
if (dev->resource[PCI_ROM_RESOURCE].start) {
pci_write_config_dword(dev, PCI_ROM_ADDRESS,
dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n",
name, dev->resource[PCI_ROM_RESOURCE].start);
}
/*
* software reset - this is required because the bios
* will set UDMA timing on if the hdd supports it. The
* user may want to turn udma off. A bug in the pdc20262
* is that it cannot handle a downgrade in timing from
* UDMA to DMA. Disk accesses after issuing a set
* feature command will result in errors. A software
* reset leaves the timing registers intact,
* but resets the drives.
*/
#if 0
if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20265) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20263) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20262)) {
unsigned long high_16 = pci_resource_start(dev, 4);
byte udma_speed_flag = inb(high_16 + 0x001f);
outb(udma_speed_flag | 0x10, high_16 + 0x001f);
mdelay(100);
outb(udma_speed_flag & ~0x10, high_16 + 0x001f);
mdelay(2000); /* 2 seconds ?! */
}
#endif
return dev->irq;
}
static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
/* PDC20265 has problems with large LBA48 requests */
if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20265))
hwif->rqsize = 256;
hwif->autodma = 0;
hwif->tuneproc = &config_chipset_for_pio;
hwif->quirkproc = &pdc202xx_quirkproc;
if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
hwif->busproc = &pdc202xx_tristate;
hwif->resetproc = &pdc202xx_reset;
}
hwif->speedproc = &pdc202xx_tune_chipset;
hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
hwif->ultra_mask = 0x3f;
hwif->mwdma_mask = 0x07;
hwif->swdma_mask = 0x07;
hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
hwif->ide_dma_lostirq = &pdc202xx_ide_dma_lostirq;
hwif->ide_dma_timeout = &pdc202xx_ide_dma_timeout;
if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
if (!(hwif->udma_four))
hwif->udma_four = (pdc202xx_old_cable_detect(hwif)) ? 0 : 1;
hwif->dma_start = &pdc202xx_old_ide_dma_start;
hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
}
hwif->ide_dma_test_irq = &pdc202xx_old_ide_dma_test_irq;
if (!noautodma)
hwif->autodma = 1;
hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
#if PDC202_DEBUG_CABLE
printk(KERN_DEBUG "%s: %s-pin cable\n",
hwif->name, hwif->udma_four ? "80" : "40");
#endif /* PDC202_DEBUG_CABLE */
}
static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
{
u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
if (hwif->channel) {
ide_setup_dma(hwif, dmabase, 8);
return;
}
udma_speed_flag = hwif->INB((dmabase|0x1f));
primary_mode = hwif->INB((dmabase|0x1a));
secondary_mode = hwif->INB((dmabase|0x1b));
printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \
"Primary %s Mode " \
"Secondary %s Mode.\n", hwif->cds->name,
(udma_speed_flag & 1) ? "EN" : "DIS",
(primary_mode & 1) ? "MASTER" : "PCI",
(secondary_mode & 1) ? "MASTER" : "PCI" );
#ifdef CONFIG_PDC202XX_BURST
if (!(udma_speed_flag & 1)) {
printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
hwif->cds->name, udma_speed_flag,
(udma_speed_flag|1));
hwif->OUTB(udma_speed_flag|1,(dmabase|0x1f));
printk("%sACTIVE\n",
(hwif->INB(dmabase|0x1f)&1) ? "":"IN");
}
#endif /* CONFIG_PDC202XX_BURST */
#ifdef CONFIG_PDC202XX_MASTER
if (!(primary_mode & 1)) {
printk(KERN_INFO "%s: FORCING PRIMARY MODE BIT "
"0x%02x -> 0x%02x ", hwif->cds->name,
primary_mode, (primary_mode|1));
hwif->OUTB(primary_mode|1, (dmabase|0x1a));
printk("%s\n",
(hwif->INB((dmabase|0x1a)) & 1) ? "MASTER" : "PCI");
}
if (!(secondary_mode & 1)) {
printk(KERN_INFO "%s: FORCING SECONDARY MODE BIT "
"0x%02x -> 0x%02x ", hwif->cds->name,
secondary_mode, (secondary_mode|1));
hwif->OUTB(secondary_mode|1, (dmabase|0x1b));
printk("%s\n",
(hwif->INB((dmabase|0x1b)) & 1) ? "MASTER" : "PCI");
}
#endif /* CONFIG_PDC202XX_MASTER */
ide_setup_dma(hwif, dmabase, 8);
}
static int __devinit init_setup_pdc202ata4(struct pci_dev *dev,
ide_pci_device_t *d)
{
if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
u8 irq = 0, irq2 = 0;
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
/* 0xbc */
pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2);
if (irq != irq2) {
pci_write_config_byte(dev,
(PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */
printk(KERN_INFO "%s: pci-config space interrupt "
"mirror fixed.\n", d->name);
}
}
#if 0
if (dev->device == PCI_DEVICE_ID_PROMISE_20262)
if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
(tmp & e->mask) != e->val))
if (d->enablebits[0].reg != d->enablebits[1].reg) {
d->enablebits[0].reg = d->enablebits[1].reg;
d->enablebits[0].mask = d->enablebits[1].mask;
d->enablebits[0].val = d->enablebits[1].val;
}
#endif
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_pdc20265(struct pci_dev *dev,
ide_pci_device_t *d)
{
if ((dev->bus->self) &&
(dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
(dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
printk(KERN_INFO "ide: Skipping Promise PDC20265 "
"attached to I2O RAID controller.\n");
return -ENODEV;
}
#if 0
{
u8 pri = 0, sec = 0;
if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
(tmp & e->mask) != e->val))
if (d->enablebits[0].reg != d->enablebits[1].reg) {
d->enablebits[0].reg = d->enablebits[1].reg;
d->enablebits[0].mask = d->enablebits[1].mask;
d->enablebits[0].val = d->enablebits[1].val;
}
}
#endif
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_pdc202xx(struct pci_dev *dev,
ide_pci_device_t *d)
{
return ide_setup_pci_device(dev, d);
}
static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
{ /* 0 */
.name = "PDC20246",
.init_setup = init_setup_pdc202ata4,
.init_chipset = init_chipset_pdc202xx,
.init_hwif = init_hwif_pdc202xx,
.init_dma = init_dma_pdc202xx,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
.extra = 16,
},{ /* 1 */
.name = "PDC20262",
.init_setup = init_setup_pdc202ata4,
.init_chipset = init_chipset_pdc202xx,
.init_hwif = init_hwif_pdc202xx,
.init_dma = init_dma_pdc202xx,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
.extra = 48,
.flags = IDEPCI_FLAG_FORCE_PDC,
},{ /* 2 */
.name = "PDC20263",
.init_setup = init_setup_pdc202ata4,
.init_chipset = init_chipset_pdc202xx,
.init_hwif = init_hwif_pdc202xx,
.init_dma = init_dma_pdc202xx,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
.extra = 48,
},{ /* 3 */
.name = "PDC20265",
.init_setup = init_setup_pdc20265,
.init_chipset = init_chipset_pdc202xx,
.init_hwif = init_hwif_pdc202xx,
.init_dma = init_dma_pdc202xx,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
.extra = 48,
.flags = IDEPCI_FLAG_FORCE_PDC,
},{ /* 4 */
.name = "PDC20267",
.init_setup = init_setup_pdc202xx,
.init_chipset = init_chipset_pdc202xx,
.init_hwif = init_hwif_pdc202xx,
.init_dma = init_dma_pdc202xx,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
.extra = 48,
}
};
/**
* pdc202xx_init_one - called when a PDC202xx is found
* @dev: the pdc202xx device
* @id: the matching pci id
*
* Called when the PCI registration layer (or the IDE initialization)
* finds a device matching our IDE device tables.
*/
static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
ide_pci_device_t *d = &pdc202xx_chipsets[id->driver_data];
return d->init_setup(dev, d);
}
static struct pci_device_id pdc202xx_pci_tbl[] = {
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl);
static struct pci_driver driver = {
.name = "Promise_Old_IDE",
.id_table = pdc202xx_pci_tbl,
.probe = pdc202xx_init_one,
};
static int pdc202xx_ide_init(void)
{
return ide_pci_register_driver(&driver);
}
module_init(pdc202xx_ide_init);
MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
MODULE_DESCRIPTION("PCI driver module for older Promise IDE");
MODULE_LICENSE("GPL");