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linux-next/drivers/ide/pci/pdc202xx_new.c
Jesper Juhl 3c6bee1d40 [PATCH] turn "const static" into "static const" 
ICC likes to complain about storage class not being first, GCC doesn't
care much (except for cases like "inline static").
have a hard time seeing how it could break anything.

Thanks to Gabriel A. Devenyi for pointing out
http://linuxicc.sourceforge.net/ which is what made me create this patch.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:55 -08:00

509 lines
13 KiB
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/*
* Promise TX2/TX4/TX2000/133 IDE driver
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Split from:
* linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
* 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/module.h>
#include <linux/types.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>
#ifdef CONFIG_PPC_PMAC
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#endif
#define PDC202_DEBUG_CABLE 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
};
#define set_2regs(a, b) \
do { \
hwif->OUTB((a + adj), indexreg); \
hwif->OUTB(b, datareg); \
} while(0)
#define set_ultra(a, b, c) \
do { \
set_2regs(0x10,(a)); \
set_2regs(0x11,(b)); \
set_2regs(0x12,(c)); \
} while(0)
#define set_ata2(a, b) \
do { \
set_2regs(0x0e,(a)); \
set_2regs(0x0f,(b)); \
} while(0)
#define set_pio(a, b, c) \
do { \
set_2regs(0x0c,(a)); \
set_2regs(0x0d,(b)); \
set_2regs(0x13,(c)); \
} while(0)
static u8 pdcnew_ratemask (ide_drive_t *drive)
{
u8 mode;
switch(HWIF(drive)->pci_dev->device) {
case PCI_DEVICE_ID_PROMISE_20277:
case PCI_DEVICE_ID_PROMISE_20276:
case PCI_DEVICE_ID_PROMISE_20275:
case PCI_DEVICE_ID_PROMISE_20271:
case PCI_DEVICE_ID_PROMISE_20269:
mode = 4;
break;
case PCI_DEVICE_ID_PROMISE_20270:
case PCI_DEVICE_ID_PROMISE_20268:
mode = 3;
break;
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 pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{
ide_hwif_t *hwif = HWIF(drive);
unsigned long indexreg = hwif->dma_vendor1;
unsigned long datareg = hwif->dma_vendor3;
u8 thold = 0x10;
u8 adj = (drive->dn%2) ? 0x08 : 0x00;
u8 speed = ide_rate_filter(pdcnew_ratemask(drive), xferspeed);
if (speed == XFER_UDMA_2) {
hwif->OUTB((thold + adj), indexreg);
hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
}
switch (speed) {
case XFER_UDMA_7:
speed = XFER_UDMA_6;
case XFER_UDMA_6: set_ultra(0x1a, 0x01, 0xcb); break;
case XFER_UDMA_5: set_ultra(0x1a, 0x02, 0xcb); break;
case XFER_UDMA_4: set_ultra(0x1a, 0x03, 0xcd); break;
case XFER_UDMA_3: set_ultra(0x1a, 0x05, 0xcd); break;
case XFER_UDMA_2: set_ultra(0x2a, 0x07, 0xcd); break;
case XFER_UDMA_1: set_ultra(0x3a, 0x0a, 0xd0); break;
case XFER_UDMA_0: set_ultra(0x4a, 0x0f, 0xd5); break;
case XFER_MW_DMA_2: set_ata2(0x69, 0x25); break;
case XFER_MW_DMA_1: set_ata2(0x6b, 0x27); break;
case XFER_MW_DMA_0: set_ata2(0xdf, 0x5f); break;
case XFER_PIO_4: set_pio(0x23, 0x09, 0x25); break;
case XFER_PIO_3: set_pio(0x27, 0x0d, 0x35); break;
case XFER_PIO_2: set_pio(0x23, 0x26, 0x64); break;
case XFER_PIO_1: set_pio(0x46, 0x29, 0xa4); break;
case XFER_PIO_0: set_pio(0xfb, 0x2b, 0xac); break;
default:
;
}
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 pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
{
u8 speed;
if (pio == 5) pio = 4;
speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
(void)pdcnew_new_tune_chipset(drive, speed);
}
static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
{
hwif->OUTB(0x0b, hwif->dma_vendor1);
return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
}
static int config_chipset_for_dma (ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
ide_hwif_t *hwif = HWIF(drive);
u8 speed = -1;
u8 cable;
u8 ultra_66 = ((id->dma_ultra & 0x0010) ||
(id->dma_ultra & 0x0008)) ? 1 : 0;
cable = pdcnew_new_cable_detect(hwif);
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 (drive->media != ide_disk)
return 0;
if (id->capability & 4) { /* IORDY_EN & PREFETCH_EN */
hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
}
speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
if (!(speed)) {
hwif->tuneproc(drive, 5);
return 0;
}
(void) hwif->speedproc(drive, speed);
return ide_dma_enable(drive);
}
static int pdcnew_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 pdcnew_quirkproc (ide_drive_t *drive)
{
return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
}
static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
{
if (HWIF(drive)->resetproc != NULL)
HWIF(drive)->resetproc(drive);
return __ide_dma_lostirq(drive);
}
static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
{
if (HWIF(drive)->resetproc != NULL)
HWIF(drive)->resetproc(drive);
return __ide_dma_timeout(drive);
}
static void pdcnew_new_reset (ide_drive_t *drive)
{
/*
* Deleted this because it is redundant from the caller.
*/
printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
HWIF(drive)->channel ? "Secondary" : "Primary");
}
#ifdef CONFIG_PPC_PMAC
static void __devinit apple_kiwi_init(struct pci_dev *pdev)
{
struct device_node *np = pci_device_to_OF_node(pdev);
unsigned int class_rev = 0;
void __iomem *mmio;
u8 conf;
if (np == NULL || !device_is_compatible(np, "kiwi-root"))
return;
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xff;
if (class_rev >= 0x03) {
/* Setup chip magic config stuff (from darwin) */
pci_read_config_byte(pdev, 0x40, &conf);
pci_write_config_byte(pdev, 0x40, conf | 0x01);
}
mmio = ioremap(pci_resource_start(pdev, 5),
pci_resource_len(pdev, 5));
/* Setup some PLL stuffs */
switch (pdev->device) {
case PCI_DEVICE_ID_PROMISE_20270:
writew(0x0d2b, mmio + 0x1202);
mdelay(30);
break;
case PCI_DEVICE_ID_PROMISE_20271:
writew(0x0826, mmio + 0x1202);
mdelay(30);
break;
}
iounmap(mmio);
}
#endif /* CONFIG_PPC_PMAC */
static unsigned int __devinit init_chipset_pdcnew(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);
}
#ifdef CONFIG_PPC_PMAC
apple_kiwi_init(dev);
#endif
return dev->irq;
}
static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
{
hwif->autodma = 0;
hwif->tuneproc = &pdcnew_tune_drive;
hwif->quirkproc = &pdcnew_quirkproc;
hwif->speedproc = &pdcnew_new_tune_chipset;
hwif->resetproc = &pdcnew_new_reset;
hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
hwif->ultra_mask = 0x7f;
hwif->mwdma_mask = 0x07;
hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
if (!(hwif->udma_four))
hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1;
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 int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
{
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_pdc20270(struct pci_dev *dev,
ide_pci_device_t *d)
{
struct pci_dev *findev = NULL;
if ((dev->bus->self &&
dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
(dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
if (PCI_SLOT(dev->devfn) & 2)
return -ENODEV;
d->extra = 0;
while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
if ((findev->vendor == dev->vendor) &&
(findev->device == dev->device) &&
(PCI_SLOT(findev->devfn) & 2)) {
if (findev->irq != dev->irq) {
findev->irq = dev->irq;
}
return ide_setup_pci_devices(dev, findev, d);
}
}
}
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_pdc20276(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 PDC20276 "
"attached to I2O RAID controller.\n");
return -ENODEV;
}
return ide_setup_pci_device(dev, d);
}
static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
{ /* 0 */
.name = "PDC20268",
.init_setup = init_setup_pdcnew,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
},{ /* 1 */
.name = "PDC20269",
.init_setup = init_setup_pdcnew,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
},{ /* 2 */
.name = "PDC20270",
.init_setup = init_setup_pdc20270,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
},{ /* 3 */
.name = "PDC20271",
.init_setup = init_setup_pdcnew,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
},{ /* 4 */
.name = "PDC20275",
.init_setup = init_setup_pdcnew,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
},{ /* 5 */
.name = "PDC20276",
.init_setup = init_setup_pdc20276,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
#ifndef CONFIG_PDC202XX_FORCE
.enablebits = {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
#endif
.bootable = OFF_BOARD,
},{ /* 6 */
.name = "PDC20277",
.init_setup = init_setup_pdcnew,
.init_chipset = init_chipset_pdcnew,
.init_hwif = init_hwif_pdc202new,
.channels = 2,
.autodma = AUTODMA,
.bootable = OFF_BOARD,
}
};
/**
* pdc202new_init_one - called when a pdc202xx is found
* @dev: the pdc202new 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 pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
return d->init_setup(dev, d);
}
static struct pci_device_id pdc202new_pci_tbl[] = {
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
static struct pci_driver driver = {
.name = "Promise_IDE",
.id_table = pdc202new_pci_tbl,
.probe = pdc202new_init_one,
};
static int pdc202new_ide_init(void)
{
return ide_pci_register_driver(&driver);
}
module_init(pdc202new_ide_init);
MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
MODULE_LICENSE("GPL");
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