patch-2.4.9 linux/drivers/ide/osb4.c
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- Lines: 460
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.8/linux/drivers/ide/osb4.c
- Orig date:
Tue May 1 16:05:00 2001
diff -u --recursive --new-file v2.4.8/linux/drivers/ide/osb4.c linux/drivers/ide/osb4.c
@@ -1,459 +0,0 @@
-/*
- * linux/drivers/block/osb4.c Version 0.2 17 Oct 2000
- *
- * Copyright (C) 2000 Cobalt Networks, Inc. <asun@cobalt.com>
- * May be copied or modified under the terms of the GNU General Public License
- *
- * interface borrowed from alim15x3.c:
- * Copyright (C) 1998-2000 Michel Aubry, Maintainer
- * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
- *
- * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
- *
- * IDE support for the ServerWorks OSB4 IDE chipset
- *
- * here's the default lspci:
- *
- * 00:0f.1 IDE interface: ServerWorks: Unknown device 0211 (prog-if 8a [Master SecP PriP])
- * Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
- * Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
- * Latency: 255
- * Region 4: I/O ports at c200
- * 00: 66 11 11 02 05 01 00 02 00 8a 01 01 00 ff 80 00
- * 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 20: 01 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 40: 99 99 99 99 ff ff ff ff 0c 0c 00 00 00 00 00 00
- * 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- *
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-
-#include "ide_modes.h"
-
-#define OSB4_DEBUG_DRIVE_INFO 0
-
-#define DISPLAY_OSB4_TIMINGS
-
-#if defined(DISPLAY_OSB4_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static struct pci_dev *bmide_dev;
-
-static int osb4_get_info(char *, char **, off_t, int);
-extern int (*osb4_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-extern char *ide_media_verbose(ide_drive_t *);
-
-static int osb4_get_info (char *buffer, char **addr, off_t offset, int count)
-{
- char *p = buffer;
- u32 bibma = pci_resource_start(bmide_dev, 4);
- u16 reg56;
- u8 c0 = 0, c1 = 0, reg54;
-
- pci_read_config_byte(bmide_dev, 0x54, ®54);
- pci_read_config_word(bmide_dev, 0x56, ®56);
-
- /*
- * at that point bibma+0x2 et bibma+0xa are byte registers
- * to investigate:
- */
- c0 = inb_p((unsigned short)bibma + 0x02);
- c1 = inb_p((unsigned short)bibma + 0x0a);
-
- p += sprintf(p, "\n ServerWorks OSB4 Chipset.\n");
- p += sprintf(p, "--------------- Primary Channel ---------------- Secondary Channel -------------\n");
- p += sprintf(p, " %sabled %sabled\n",
- (c0&0x80) ? "dis" : " en",
- (c1&0x80) ? "dis" : " en");
- p += sprintf(p, "--------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------\n");
- p += sprintf(p, "DMA enabled: %s %s %s %s\n",
- (c0&0x20) ? "yes" : "no ",
- (c0&0x40) ? "yes" : "no ",
- (c1&0x20) ? "yes" : "no ",
- (c1&0x40) ? "yes" : "no " );
- p += sprintf(p, "UDMA enabled: %s %s %s %s\n",
- (reg54 & 0x01) ? "yes" : "no ",
- (reg54 & 0x02) ? "yes" : "no ",
- (reg54 & 0x04) ? "yes" : "no ",
- (reg54 & 0x08) ? "yes" : "no " );
- p += sprintf(p, "UDMA enabled: %s %s %s %s\n",
- (reg56 & 0x0002) ? "2" : ((reg56 & 0x0001) ? "1" :
- ((reg56 & 0x000f) ? "X" : "0")),
- (reg56 & 0x0020) ? "2" : ((reg56 & 0x0010) ? "1" :
- ((reg56 & 0x00f0) ? "X" : "0")),
- (reg56 & 0x0200) ? "2" : ((reg56 & 0x0100) ? "1" :
- ((reg56 & 0x0f00) ? "X" : "0")),
- (reg56 & 0x2000) ? "2" : ((reg56 & 0x1000) ? "1" :
- ((reg56 & 0xf000) ? "X" : "0")));
- return p-buffer; /* => must be less than 4k! */
-}
-#endif /* defined(DISPLAY_OSB4_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-static byte osb4_revision = 0;
-
-byte osb4_proc = 0;
-
-extern char *ide_xfer_verbose (byte xfer_rate);
-
-static struct pci_dev *isa_dev;
-
-static int osb4_tune_chipset (ide_drive_t *drive, byte speed)
-{
- byte udma_modes[] = { 0x00, 0x01, 0x02 };
- byte dma_modes[] = { 0x77, 0x21, 0x20 };
- byte pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
-
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- byte unit = (drive->select.b.unit & 0x01);
-#ifdef CONFIG_BLK_DEV_IDEDMA
- unsigned long dma_base = hwif->dma_base;
-#endif /* CONFIG_BLK_DEV_IDEDMA */
- int err;
-
- byte drive_pci = 0x00;
- byte drive_pci2 = 0x00;
- byte drive_pci3 = hwif->channel ? 0x57 : 0x56;
-
- byte ultra_enable = 0x00;
- byte ultra_timing = 0x00;
- byte dma_timing = 0x00;
- byte pio_timing = 0x00;
-
- byte pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- switch (drive->dn) {
- case 0: drive_pci = 0x41; drive_pci2 = 0x45; break;
- case 1: drive_pci = 0x40; drive_pci2 = 0x44; break;
- case 2: drive_pci = 0x43; drive_pci2 = 0x47; break;
- case 3: drive_pci = 0x42; drive_pci2 = 0x46; break;
- default:
- return -1;
- }
-
- pci_read_config_byte(dev, drive_pci, &pio_timing);
- pci_read_config_byte(dev, drive_pci2, &dma_timing);
- pci_read_config_byte(dev, drive_pci3, &ultra_timing);
- pci_read_config_byte(dev, 0x54, &ultra_enable);
-
-#ifdef DEBUG
- printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
- drive->name, ultra_timing, dma_timing, pio_timing);
-#endif
-
- pio_timing &= ~0xFF;
- dma_timing &= ~0xFF;
- ultra_timing &= ~(0x0F << (4*unit));
- ultra_enable &= ~(0x01 << drive->dn);
-
- switch(speed) {
- case XFER_PIO_4:
- case XFER_PIO_3:
- case XFER_PIO_2:
- case XFER_PIO_1:
- case XFER_PIO_0:
- pio_timing |= pio_modes[speed - XFER_PIO_0];
- break;
-#ifdef CONFIG_BLK_DEV_IDEDMA
- case XFER_MW_DMA_2:
- case XFER_MW_DMA_1:
- case XFER_MW_DMA_0:
- pio_timing |= pio_modes[pio];
- dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
- break;
-
-// case XFER_UDMA_5:
-// case XFER_UDMA_4:
-// case XFER_UDMA_3:
- case XFER_UDMA_2:
- case XFER_UDMA_1:
- case XFER_UDMA_0:
- pio_timing |= pio_modes[pio];
- dma_timing |= dma_modes[2];
- ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit));
- ultra_enable |= (0x01 << drive->dn);
-#endif
- default:
- break;
- }
-
-#ifdef DEBUG
- printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
- drive->name, ultra_timing, dma_timing, pio_timing);
-#endif
-
-#if OSB4_DEBUG_DRIVE_INFO
- printk("%s: %s drive%d\n", drive->name, ide_xfer_verbose(speed), drive->dn);
-#endif /* OSB4_DEBUG_DRIVE_INFO */
-
- if (!drive->init_speed)
- drive->init_speed = speed;
-
- pci_write_config_byte(dev, drive_pci, pio_timing);
-#ifdef CONFIG_BLK_DEV_IDEDMA
- pci_write_config_byte(dev, drive_pci2, dma_timing);
- pci_write_config_byte(dev, drive_pci3, ultra_timing);
- pci_write_config_byte(dev, 0x54, ultra_enable);
-
- if (speed > XFER_PIO_4) {
- outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
- } else {
- outb(inb(dma_base+2) & ~(1<<(5+unit)), dma_base+2);
- }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
- err = ide_config_drive_speed(drive, speed);
- drive->current_speed = speed;
- return err;
-}
-
-static void config_chipset_for_pio (ide_drive_t *drive)
-{
- unsigned short eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
- unsigned short xfer_pio = drive->id->eide_pio_modes;
- byte timing, speed, pio;
-
- pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- if (xfer_pio> 4)
- xfer_pio = 0;
-
- if (drive->id->eide_pio_iordy > 0) {
- for (xfer_pio = 5;
- xfer_pio>0 &&
- drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
- xfer_pio--);
- } else {
- xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
- (drive->id->eide_pio_modes & 2) ? 0x04 :
- (drive->id->eide_pio_modes & 1) ? 0x03 :
- (drive->id->tPIO & 2) ? 0x02 :
- (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
- }
-
- timing = (xfer_pio >= pio) ? xfer_pio : pio;
-
- switch(timing) {
- case 4: speed = XFER_PIO_4;break;
- case 3: speed = XFER_PIO_3;break;
- case 2: speed = XFER_PIO_2;break;
- case 1: speed = XFER_PIO_1;break;
- default:
- speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
- break;
- }
- (void) osb4_tune_chipset(drive, speed);
- drive->current_speed = speed;
-}
-
-static void osb4_tune_drive (ide_drive_t *drive, byte pio)
-{
- byte speed;
- switch(pio) {
- case 4: speed = XFER_PIO_4;break;
- case 3: speed = XFER_PIO_3;break;
- case 2: speed = XFER_PIO_2;break;
- case 1: speed = XFER_PIO_1;break;
- default: speed = XFER_PIO_0;break;
- }
- (void) osb4_tune_chipset(drive, speed);
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- byte speed;
-
-#if 0
- byte udma_66 = eighty_ninty_three(drive);
- /* need specs to figure out if osb4 is capable of ata/66/100 */
- int ultra100 = 0;
- int ultra66 = 0;
-
- if ((id->dma_ultra & 0x0020) && (udma_66) && (ultra100)) {
- speed = XFER_UDMA_5;
- } else if (id->dma_ultra & 0x0010) {
- speed = ((udma_66) && (ultra66)) ? XFER_UDMA_4 : XFER_UDMA_2;
- } else if (id->dma_ultra & 0x0008) {
- speed = ((udma_66) && (ultra66)) ? XFER_UDMA_3 : XFER_UDMA_1;
- } else if (id->dma_ultra & 0x0004) {
-#else
- if (id->dma_ultra & 0x0004) {
-#endif
- speed = XFER_UDMA_2;
- } else if (id->dma_ultra & 0x0002) {
- speed = XFER_UDMA_1;
- } else if (id->dma_ultra & 0x0001) {
- speed = XFER_UDMA_0;
- } else if (id->dma_mword & 0x0004) {
- speed = XFER_MW_DMA_2;
- } else if (id->dma_mword & 0x0002) {
- speed = XFER_MW_DMA_1;
- } else if (id->dma_1word & 0x0004) {
- speed = XFER_SW_DMA_2;
- } else {
- speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
- }
-
- (void) osb4_tune_chipset(drive, speed);
-
- return ((int) ((id->dma_ultra >> 11) & 7) ? ide_dma_on :
- ((id->dma_ultra >> 8) & 7) ? ide_dma_on :
- ((id->dma_mword >> 8) & 7) ? ide_dma_on :
- ((id->dma_1word >> 8) & 7) ? ide_dma_on :
- ide_dma_off_quietly);
-}
-
-static int config_drive_xfer_rate (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- ide_dma_action_t dma_func = ide_dma_on;
-
- if (id && (id->capability & 1) && HWIF(drive)->autodma) {
- /* Consult the list of known "bad" drives */
- if (ide_dmaproc(ide_dma_bad_drive, drive)) {
- dma_func = ide_dma_off;
- goto fast_ata_pio;
- }
- dma_func = ide_dma_off_quietly;
- if (id->field_valid & 4) {
- if (id->dma_ultra & 0x002F) {
- /* Force if Capable UltraDMA */
- dma_func = config_chipset_for_dma(drive);
- if ((id->field_valid & 2) &&
- (dma_func != ide_dma_on))
- goto try_dma_modes;
- }
- } else if (id->field_valid & 2) {
-try_dma_modes:
- if ((id->dma_mword & 0x0007) ||
- (id->dma_1word & 0x007)) {
- /* Force if Capable regular DMA modes */
- dma_func = config_chipset_for_dma(drive);
- if (dma_func != ide_dma_on)
- goto no_dma_set;
- }
- } else if (ide_dmaproc(ide_dma_good_drive, drive)) {
- if (id->eide_dma_time > 150) {
- goto no_dma_set;
- }
- /* Consult the list of known "good" drives */
- dma_func = config_chipset_for_dma(drive);
- if (dma_func != ide_dma_on)
- goto no_dma_set;
- } else {
- goto fast_ata_pio;
- }
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
- dma_func = ide_dma_off_quietly;
-no_dma_set:
- config_chipset_for_pio(drive);
- }
- return HWIF(drive)->dmaproc(dma_func, drive);
-}
-
-static int osb4_dmaproc(ide_dma_action_t func, ide_drive_t *drive)
-{
- switch (func) {
- case ide_dma_check:
- return config_drive_xfer_rate(drive);
- default :
- break;
- }
- /* Other cases are done by generic IDE-DMA code. */
- return ide_dmaproc(func, drive);
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-unsigned int __init pci_init_osb4 (struct pci_dev *dev, const char *name)
-{
- unsigned int reg64;
-
- pci_read_config_byte(dev, PCI_REVISION_ID, &osb4_revision);
-
- isa_dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
-
- pci_read_config_dword(isa_dev, 0x64, ®64);
-#ifdef DEBUG
- printk("%s: reg64 == 0x%08x\n", name, reg64);
-#endif
-
-// reg64 &= ~0x0000A000;
-//#ifdef CONFIG_SMP
-// reg64 |= 0x00008000;
-//#endif
- /* Assume the APIC was set up properly by the BIOS for now . If it
- wasnt we need to do a fix up _way_ earlier. Bits 15,10,3 control
- APIC enable, routing and decode */
-
- reg64 &= ~0x00002000;
- pci_write_config_dword(isa_dev, 0x64, reg64);
-
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);
-
-#if defined(DISPLAY_OSB4_TIMINGS) && defined(CONFIG_PROC_FS)
- if (!osb4_proc) {
- osb4_proc = 1;
- bmide_dev = dev;
- osb4_display_info = &osb4_get_info;
- }
-#endif /* DISPLAY_OSB4_TIMINGS && CONFIG_PROC_FS */
- return 0;
-}
-
-unsigned int __init ata66_osb4 (ide_hwif_t *hwif)
-{
- return 0;
-}
-
-void __init ide_init_osb4 (ide_hwif_t *hwif)
-{
- if (!hwif->irq)
- hwif->irq = hwif->channel ? 15 : 14;
-
- hwif->tuneproc = &osb4_tune_drive;
- hwif->speedproc = &osb4_tune_chipset;
-
-#ifndef CONFIG_BLK_DEV_IDEDMA
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- hwif->autodma = 0;
- return;
-#else /* CONFIG_BLK_DEV_IDEDMA */
-
- if (hwif->dma_base) {
- if (!noautodma)
- hwif->autodma = 1;
- hwif->dmaproc = &osb4_dmaproc;
- } else {
- hwif->autodma = 0;
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- }
-#endif /* !CONFIG_BLK_DEV_IDEDMA */
-}
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