patch-2.3.99-pre1 linux/drivers/block/hpt366.c
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- Lines: 565
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.3.51/linux/drivers/block/hpt366.c
- Orig date:
Fri Mar 10 16:40:41 2000
diff -u --recursive --new-file v2.3.51/linux/drivers/block/hpt366.c linux/drivers/block/hpt366.c
@@ -1,564 +0,0 @@
-/*
- * linux/drivers/block/hpt366.c Version 0.16 Feb. 10, 2000
- *
- * Copyright (C) 1999-2000 Andre Hedrick <andre@suse.com>
- * May be copied or modified under the terms of the GNU General Public License
- *
- * Thanks to HighPoint Technologies for their assistance, and hardware.
- * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
- * donation of an ABit BP6 mainboard, processor, and memory acellerated
- * development and support.
- */
-
-#include <linux/config.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>
-
-#include "ide_modes.h"
-
-#undef DISPLAY_HPT366_TIMINGS
-
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-const char *bad_ata66_4[] = {
- "WDC AC310200R",
- NULL
-};
-
-const char *bad_ata66_3[] = {
- "WDC AC310200R",
- NULL
-};
-
-const char *bad_ata33[] = {
- "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
- "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
- "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
- "Maxtor 90510D4",
- "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
- "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
- "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
- NULL
-};
-
-struct chipset_bus_clock_list_entry {
- byte xfer_speed;
- unsigned int chipset_settings;
-};
-
-struct chipset_bus_clock_list_entry forty_base [] = {
-
- { XFER_UDMA_4 , 0x900fd943 },
- { XFER_UDMA_3 , 0x900ad943 },
- { XFER_UDMA_2 , 0x900bd943 },
- { XFER_UDMA_1 , 0x9008d943 },
- { XFER_UDMA_0 , 0x9008d943 },
-
- { XFER_MW_DMA_2 , 0xa008d943 },
- { XFER_MW_DMA_1 , 0xa010d955 },
- { XFER_MW_DMA_0 , 0xa010d9fc },
-
- { XFER_PIO_4 , 0xc008d963 },
- { XFER_PIO_3 , 0xc010d974 },
- { XFER_PIO_2 , 0xc010d997 },
- { XFER_PIO_1 , 0xc010d9c7 },
- { XFER_PIO_0 , 0xc018d9d9 },
- { 0 , 0x0120d9d9 }
-};
-
-struct chipset_bus_clock_list_entry thirty_three_base [] = {
-
- { XFER_UDMA_4 , 0x90c9a731 },
- { XFER_UDMA_3 , 0x90cfa731 },
- { XFER_UDMA_2 , 0x90caa731 },
- { XFER_UDMA_1 , 0x90cba731 },
- { XFER_UDMA_0 , 0x90c8a731 },
-
- { XFER_MW_DMA_2 , 0xa0c8a731 },
- { XFER_MW_DMA_1 , 0xa0c8a732 }, /* 0xa0c8a733 */
- { XFER_MW_DMA_0 , 0xa0c8a797 },
-
- { XFER_PIO_4 , 0xc0c8a731 },
- { XFER_PIO_3 , 0xc0c8a742 },
- { XFER_PIO_2 , 0xc0d0a753 },
- { XFER_PIO_1 , 0xc0d0a7a3 }, /* 0xc0d0a793 */
- { XFER_PIO_0 , 0xc0d0a7aa }, /* 0xc0d0a7a7 */
- { 0 , 0x0120a7a7 }
-};
-
-struct chipset_bus_clock_list_entry twenty_five_base [] = {
-
- { XFER_UDMA_4 , 0x90c98521 },
- { XFER_UDMA_3 , 0x90cf8521 },
- { XFER_UDMA_2 , 0x90cf8521 },
- { XFER_UDMA_1 , 0x90cb8521 },
- { XFER_UDMA_0 , 0x90cb8521 },
-
- { XFER_MW_DMA_2 , 0xa0ca8521 },
- { XFER_MW_DMA_1 , 0xa0ca8532 },
- { XFER_MW_DMA_0 , 0xa0ca8575 },
-
- { XFER_PIO_4 , 0xc0ca8521 },
- { XFER_PIO_3 , 0xc0ca8532 },
- { XFER_PIO_2 , 0xc0ca8542 },
- { XFER_PIO_1 , 0xc0d08572 },
- { XFER_PIO_0 , 0xc0d08585 },
- { 0 , 0x01208585 }
-};
-
-#define HPT366_DEBUG_DRIVE_INFO 0
-#define HPT366_ALLOW_ATA66_4 1
-#define HPT366_ALLOW_ATA66_3 1
-
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
-static int hpt366_get_info(char *, char **, off_t, int);
-extern int (*hpt366_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-extern char *ide_media_verbose(ide_drive_t *);
-static struct pci_dev *bmide_dev;
-static struct pci_dev *bmide2_dev;
-
-static int hpt366_get_info (char *buffer, char **addr, off_t offset, int count)
-{
- char *p = buffer;
- u32 bibma = bmide_dev->resource[4].start;
- u32 bibma2 = bmide2_dev->resource[4].start;
- u8 c0 = 0, c1 = 0;
-
- /*
- * at that point bibma+0x2 et bibma+0xa are byte registers
- * to investigate:
- */
- c0 = inb_p((unsigned short)bibma + 0x02);
- if (bmide2_dev)
- c1 = inb_p((unsigned short)bibma2 + 0x02);
-
- p += sprintf(p, "\n HPT366 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\n");
- p += sprintf(p, "DMA\n");
- p += sprintf(p, "PIO\n");
-
- return p-buffer;/* => must be less than 4k! */
-}
-#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-byte hpt366_proc = 0;
-
-extern char *ide_xfer_verbose (byte xfer_rate);
-byte hpt363_shared_irq = 0;
-byte hpt363_shared_pin = 0;
-
-static int check_in_drive_lists (ide_drive_t *drive, const char **list)
-{
- struct hd_driveid *id = drive->id;
-#if HPT366_DEBUG_DRIVE_INFO
- printk("check_in_drive_lists(%s, %p)\n", drive->name, list);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
-
- while (*list) {
- if (!strcmp(*list++,id->model)) {
-#ifdef DEBUG
- printk("%s: Broken ASIC, BackSpeeding (U)DMA for %s\n", drive->name, id->model);
-#endif /* DEBUG */
- return 1;
- }
- }
- return 0;
-}
-
-static unsigned int pci_bus_clock_list (byte speed, struct chipset_bus_clock_list_entry * chipset_table)
-{
-#if HPT366_DEBUG_DRIVE_INFO
- printk("pci_bus_clock_list(speed=0x%02x, table=%p)\n", speed, chipset_table);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- for ( ; chipset_table->xfer_speed ; chipset_table++)
- if (chipset_table->xfer_speed == speed) {
-#if HPT366_DEBUG_DRIVE_INFO
- printk("pci_bus_clock_list: found match: 0x%08x\n", chipset_table->chipset_settings);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- return chipset_table->chipset_settings;
- }
-#if HPT366_DEBUG_DRIVE_INFO
- printk("pci_bus_clock_list: using default: 0x%08x\n", 0x01208585);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- return 0x01208585;
-}
-
-static int hpt366_tune_chipset (ide_drive_t *drive, byte speed)
-{
- int err;
-#if HPT366_DEBUG_DRIVE_INFO
- int drive_number = ((HWIF(drive)->channel ? 2 : 0) + (drive->select.b.unit & 0x01));
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- byte regtime = (drive->select.b.unit & 0x01) ? 0x44 : 0x40;
- unsigned int reg1 = 0;
- unsigned int reg2 = 0;
-
-#if HPT366_DEBUG_DRIVE_INFO
- printk("hpt366_tune_chipset(%s, speed=0x%02x)\n", drive->name, speed);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
-
- pci_read_config_dword(HWIF(drive)->pci_dev, regtime, ®1);
- /* detect bus speed by looking at control reg timing: */
- switch((reg1 >> 8) & 7) {
- case 5:
- reg2 = pci_bus_clock_list(speed, forty_base);
- break;
- case 9:
- reg2 = pci_bus_clock_list(speed, twenty_five_base);
- break;
- default:
- printk("hpt366: assuming 33Mhz PCI bus\n");
- case 7:
- reg2 = pci_bus_clock_list(speed, thirty_three_base);
- break;
- }
- /*
- * Disable on-chip PIO FIFO/buffer (to avoid problems handling I/O errors later)
- */
- if (speed >= XFER_MW_DMA_0) {
- reg2 = (reg2 & ~0xc0000000) | (reg1 & 0xc0000000);
- } else {
- reg2 = (reg2 & ~0x30070000) | (reg1 & 0x30070000);
- }
- reg2 &= ~0x80000000;
-
- pci_write_config_dword(HWIF(drive)->pci_dev, regtime, reg2);
- err = ide_config_drive_speed(drive, speed);
-
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: speed=0x%02x(%s), drive%d, old=0x%08x, new=0x%08x, err=0x%04x\n",
- drive->name, speed, ide_xfer_verbose(speed),
- drive_number, reg1, reg2, err);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- return(err);
-}
-
-/*
- * This allows the configuration of ide_pci chipset registers
- * for cards that learn about the drive's UDMA, DMA, PIO capabilities
- * after the drive is reported by the OS. Initally for designed for
- * HPT366 UDMA chipset by HighPoint|Triones Technologies, Inc.
- *
- * check_in_drive_lists(drive, bad_ata66_4)
- * check_in_drive_lists(drive, bad_ata66_3)
- * check_in_drive_lists(drive, bad_ata33)
- *
- */
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- byte speed = 0x00;
- byte reg51h = 0;
- int rval;
-
- if ((id->dma_ultra & 0x0010) &&
- (!check_in_drive_lists(drive, bad_ata66_4)) &&
- (HPT366_ALLOW_ATA66_4) &&
- (HWIF(drive)->udma_four)) {
- speed = XFER_UDMA_4;
- } else if ((id->dma_ultra & 0x0008) &&
- (!check_in_drive_lists(drive, bad_ata66_3)) &&
- (HPT366_ALLOW_ATA66_3) &&
- (HWIF(drive)->udma_four)) {
- speed = XFER_UDMA_3;
- } else if (id->dma_ultra && (!check_in_drive_lists(drive, bad_ata33))) {
- if (id->dma_ultra & 0x0004) {
- 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_mword & 0x0001) {
- speed = XFER_MW_DMA_0;
- } else if (id->dma_1word & 0x0004) {
- speed = XFER_SW_DMA_2;
- } else if (id->dma_1word & 0x0002) {
- speed = XFER_SW_DMA_1;
- } else if (id->dma_1word & 0x0001) {
- speed = XFER_SW_DMA_0;
- } else {
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: config_chipset_for_dma: returning 'ide_dma_off_quietly'\n", drive->name);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- return ((int) ide_dma_off_quietly);
- }
-
- pci_read_config_byte(HWIF(drive)->pci_dev, 0x51, ®51h);
-
-#ifdef CONFIG_HPT366_FIP
- /*
- * Some drives prefer/allow for the method of handling interrupts.
- */
- if (!(reg51h & 0x80))
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x51, reg51h|0x80);
-#else /* ! CONFIG_HPT366_FIP */
- /*
- * Disable the "fast interrupt" prediction.
- * Instead, always wait for the real interrupt from the drive!
- */
- if (reg51h & 0x80)
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x51, reg51h & ~0x80);
-#endif /* CONFIG_HPT366_FIP */
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: config_chipset_for_dma: speed=0x%04x\n", drive->name, speed);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- (void) hpt366_tune_chipset(drive, speed);
-
- rval = (int)( ((id->dma_ultra >> 11) & 3) ? 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);
-
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: config_chipset_for_dma: returning %d (%s)\n", drive->name, rval, rval == ide_dma_on ? "dma_on" : "dma_off");
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- return rval;
-}
-
-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;
-
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: config_chipset_for_pio\n", drive->name);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- 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;
- }
-#if HPT366_DEBUG_DRIVE_INFO
- printk("%s: config_chipset_for_pio: speed=0x%04x\n", drive->name, speed);
-#endif /* HPT366_DEBUG_DRIVE_INFO */
- (void) hpt366_tune_chipset(drive, speed);
-}
-
-static void hpt366_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) hpt366_tune_chipset(drive, speed);
-}
-
-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 & 0x001F) {
- /* 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 & 0x0007)) {
- /* 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);
-}
-
-/*
- * hpt366_dmaproc() initiates/aborts (U)DMA read/write operations on a drive.
- *
- * This is specific to the HPT366 UDMA bios chipset
- * by HighPoint|Triones Technologies, Inc.
- */
-int hpt366_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
-{
- byte reg50h = 0;
-
- switch (func) {
- case ide_dma_check:
- return config_drive_xfer_rate(drive);
- case ide_dma_lostirq:
- pci_read_config_byte(HWIF(drive)->pci_dev, 0x50, ®50h);
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x50, reg50h|0x03);
- pci_read_config_byte(HWIF(drive)->pci_dev, 0x50, ®50h);
- /* ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL); */
- case ide_dma_timeout:
- default:
- break;
- }
- return ide_dmaproc(func, drive); /* use standard DMA stuff */
-}
-
-unsigned int __init pci_init_hpt366 (struct pci_dev *dev, const char *name)
-{
- byte test = 0;
-
- if (dev->resource[PCI_ROM_RESOURCE].start)
- pci_write_config_byte(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
-
- pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &test);
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x08);
-
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &test);
- if (test != 0x78)
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
-
- pci_read_config_byte(dev, PCI_MIN_GNT, &test);
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
-
- pci_read_config_byte(dev, PCI_MAX_LAT, &test);
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
-
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
- if (!hpt366_proc) {
- hpt366_proc = 1;
- bmide_dev = dev;
- hpt366_display_info = &hpt366_get_info;
- }
- if ((hpt366_proc) && ((dev->devfn - bmide_dev->devfn) == 1)) {
- bmide2_dev = dev;
- }
-#endif /* DISPLAY_HPT366_TIMINGS && CONFIG_PROC_FS */
-
- return dev->irq;
-}
-
-unsigned int __init ata66_hpt366 (ide_hwif_t *hwif)
-{
- byte ata66 = 0;
-
- pci_read_config_byte(hwif->pci_dev, 0x5a, &ata66);
-#ifdef DEBUG
- printk("HPT366: reg5ah=0x%02x ATA-%s Cable Port%d\n",
- ata66, (ata66 & 0x02) ? "33" : "66",
- PCI_FUNC(hwif->pci_dev->devfn));
-#endif /* DEBUG */
- return ((ata66 & 0x02) ? 0 : 1);
-}
-
-void __init ide_init_hpt366 (ide_hwif_t *hwif)
-{
- hwif->tuneproc = &hpt366_tune_drive;
- if (hwif->dma_base) {
- hwif->dmaproc = &hpt366_dmaproc;
- } else {
- hwif->autodma = 0;
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- }
-}
-
-void ide_dmacapable_hpt366 (ide_hwif_t *hwif, unsigned long dmabase)
-{
- byte masterdma = 0, slavedma = 0;
- byte dma_new = 0, dma_old = inb(dmabase+2);
- unsigned long flags;
-
- __save_flags(flags); /* local CPU only */
- __cli(); /* local CPU only */
-
- dma_new = dma_old;
- pci_read_config_byte(hwif->pci_dev, 0x43, &masterdma);
- pci_read_config_byte(hwif->pci_dev, 0x47, &slavedma);
-
- if (masterdma & 0x30) dma_new |= 0x20;
- if (slavedma & 0x30) dma_new |= 0x40;
- if (dma_new != dma_old) outb(dma_new, dmabase+2);
-
- __restore_flags(flags); /* local CPU only */
-
- ide_setup_dma(hwif, dmabase, 8);
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)