patch-2.3.99-pre1 linux/drivers/block/sis5513.c

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diff -u --recursive --new-file v2.3.51/linux/drivers/block/sis5513.c linux/drivers/block/sis5513.c
@@ -1,549 +0,0 @@
-/*
- * linux/drivers/block/sis5513.c		Version 0.09	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 SIS Taiwan for direct support and hardware.
- * Tested and designed on the SiS620/5513 chipset.
- */
-
-#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"
-
-#define DISPLAY_SIS_TIMINGS
-#define SIS5513_DEBUG_DRIVE_INFO	0
-
-static struct pci_dev *host_dev = NULL;
-
-#define arraysize(x)			(sizeof(x)/sizeof(*(x)))
-
-#define SIS5513_FLAG_ATA_00		0x00000000
-#define SIS5513_FLAG_ATA_16		0x00000001
-#define SIS5513_FLAG_ATA_33		0x00000002
-#define SIS5513_FLAG_ATA_66		0x00000004
-#define SIS5513_FLAG_LATENCY		0x00000010
-
-static const struct {
-	const char *name;
-	unsigned short host_id;
-	unsigned int flags;
-} SiSHostChipInfo[] = {
-	{ "SiS530",	PCI_DEVICE_ID_SI_530,	SIS5513_FLAG_ATA_66, },
-	{ "SiS540",	PCI_DEVICE_ID_SI_540,	SIS5513_FLAG_ATA_66, },
-	{ "SiS620",	PCI_DEVICE_ID_SI_620,	SIS5513_FLAG_ATA_66|SIS5513_FLAG_LATENCY, },
-	{ "SiS630",	PCI_DEVICE_ID_SI_630,	SIS5513_FLAG_ATA_66|SIS5513_FLAG_LATENCY, },
-	{ "SiS5591",	PCI_DEVICE_ID_SI_5591,	SIS5513_FLAG_ATA_33, },
-	{ "SiS5597",	PCI_DEVICE_ID_SI_5597,	SIS5513_FLAG_ATA_33, },
-	{ "SiS5600",	PCI_DEVICE_ID_SI_5600,	SIS5513_FLAG_ATA_33, },
-	{ "SiS5511",	PCI_DEVICE_ID_SI_5511,	SIS5513_FLAG_ATA_16, },
-};
-
-#if 0
-
-static struct _pio_mode_mapping {
-	byte data_active;
-	byte recovery;
-	byte pio_mode;
-} pio_mode_mapping[] = {
-	{ 8, 12, 0 },
-	{ 6,  7, 1 },
-	{ 4,  4, 2 },
-	{ 3,  3, 3 },
-	{ 3,  1, 4 }
-};
-
-static struct _dma_mode_mapping {
-	byte data_active;
-	byte recovery;
-	byte dma_mode;
-} dma_mode_mapping[] = {
-	{ 8, 8, 0 },
-	{ 3, 2, 1 },
-	{ 3, 1, 2 }
-};
-
-static struct _udma_mode_mapping {
-	byte cycle_time;
-	char * udma_mode;
-} udma_mode_mapping[] = {
-	{ 8, "Mode 0" },
-	{ 6, "Mode 1" },
-	{ 4, "Mode 2" }, 
-	{ 3, "Mode 3" },
-	{ 2, "Mode 4" },
-	{ 0, "Undefined" }
-};
-
-static __inline__ char * find_udma_mode (byte cycle_time)
-{
-	int n;
-	
-	for (n = 0; n <= 4; n++)
-		if (udma_mode_mapping[n].cycle_time <= cycle_time)
-			return udma_mode_mapping[n].udma_mode;
-	return udma_mode_mapping[4].udma_mode;
-}
-#endif
-
-#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static int sis_get_info(char *, char **, off_t, int);
-extern int (*sis_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-struct pci_dev *bmide_dev;
-
-static char *cable_type[] = {
-	"80 pins",
-	"40 pins"
-};
-
-static char *recovery_time [] ={
-	"12 PCICLK", "1 PCICLK",
-	"2 PCICLK", "3 PCICLK",
-	"4 PCICLK", "5 PCICLCK",
-	"6 PCICLK", "7 PCICLCK",
-	"8 PCICLK", "9 PCICLCK",
-	"10 PCICLK", "11 PCICLK",
-	"13 PCICLK", "14 PCICLK",
-	"15 PCICLK", "15 PCICLK"
-};
-
-static char *cycle_time [] = {
-	"Undefined", "2 CLCK",
-	"3 CLK", "4 CLK",
-	"5 CLK", "6 CLK",
-	"7 CLK", "8 CLK"
-};
-
-static char *active_time [] = {
-	"8 PCICLK", "1 PCICLCK",
-	"2 PCICLK", "2 PCICLK",
-	"4 PCICLK", "5 PCICLK",
-	"6 PCICLK", "12 PCICLK"
-};
-
-static int sis_get_info (char *buffer, char **addr, off_t offset, int count)
-{
-	int rc;
-	char *p = buffer;
-	byte reg,reg1;
-	u16 reg2, reg3;
-
-	p += sprintf(p, "--------------- Primary Channel ---------------- Secondary Channel -------------\n");
-	rc = pci_read_config_byte(bmide_dev, 0x4a, &reg);
-	p += sprintf(p, "Channel Status: %s \t \t \t \t %s \n",
-		     (reg & 0x02) ? "On" : "Off",
-		     (reg & 0x04) ? "On" : "Off");
-		     
-	rc = pci_read_config_byte(bmide_dev, 0x09, &reg);
-	p += sprintf(p, "Operation Mode: %s \t \t \t %s \n",
-		     (reg & 0x01) ? "Native" : "Compatible",
-		     (reg & 0x04) ? "Native" : "Compatible");
-		     	     
-	rc = pci_read_config_byte(bmide_dev, 0x48, &reg);
-	p += sprintf(p, "Cable Type:     %s \t \t \t %s\n",
-		     (reg & 0x10) ? cable_type[1] : cable_type[0],
-		     (reg & 0x20) ? cable_type[1] : cable_type[0]);
-		     
-	rc = pci_read_config_word(bmide_dev, 0x4c, &reg2);
-	rc = pci_read_config_word(bmide_dev, 0x4e, &reg3);
-	p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n",
-		     reg2, reg3);
-
-	rc = pci_read_config_byte(bmide_dev, 0x4b, &reg);	     
-	p += sprintf(p, "Drvie 0:        Postwrite %s \t \t Postwrite %s\n",
-		     (reg & 0x10) ? "Enabled" : "Disabled",
-		     (reg & 0x40) ? "Enabled" : "Disabled");
-	p += sprintf(p, "                Prefetch  %s \t \t Prefetch  %s\n",
-		     (reg & 0x01) ? "Enabled" : "Disabled",
-		     (reg & 0x04) ? "Enabled" : "Disabled");
-		          
-	rc = pci_read_config_byte(bmide_dev, 0x41, &reg);
-	rc = pci_read_config_byte(bmide_dev, 0x45, &reg1);
-	p += sprintf(p, "                UDMA %s \t \t \t UDMA %s\n",
-		     (reg & 0x80)  ? "Enabled" : "Disabled",
-		     (reg1 & 0x80) ? "Enabled" : "Disabled");
-	p += sprintf(p, "                UDMA Cycle Time    %s \t UDMA Cycle Time    %s\n",
-		     cycle_time[(reg & 0x70) >> 4], cycle_time[(reg1 & 0x70) >> 4]);
-	p += sprintf(p, "                Data Active Time   %s \t Data Active Time   %s\n",
-		     active_time[(reg & 0x07)], active_time[(reg &0x07)] ); 
-
-	rc = pci_read_config_byte(bmide_dev, 0x40, &reg);
-	rc = pci_read_config_byte(bmide_dev, 0x44, &reg1);
-	p += sprintf(p, "                Data Recovery Time %s \t Data Recovery Time %s\n",
-		     recovery_time[(reg & 0x0f)], recovery_time[(reg1 & 0x0f)]);
-
-
-	rc = pci_read_config_byte(bmide_dev, 0x4b, &reg);	     
-	p += sprintf(p, "Drvie 1:        Postwrite %s \t \t Postwrite %s\n",
-		     (reg & 0x20) ? "Enabled" : "Disabled",
-		     (reg & 0x80) ? "Enabled" : "Disabled");
-	p += sprintf(p, "                Prefetch  %s \t \t Prefetch  %s\n",
-		     (reg & 0x02) ? "Enabled" : "Disabled",
-		     (reg & 0x08) ? "Enabled" : "Disabled");
-
-	rc = pci_read_config_byte(bmide_dev, 0x43, &reg);
-	rc = pci_read_config_byte(bmide_dev, 0x47, &reg1);
-	p += sprintf(p, "                UDMA %s \t \t \t UDMA %s\n",
-		     (reg & 0x80)  ? "Enabled" : "Disabled",
-		     (reg1 & 0x80) ? "Enabled" : "Disabled");
-	p += sprintf(p, "                UDMA Cycle Time    %s \t UDMA Cycle Time    %s\n",
-		     cycle_time[(reg & 0x70) >> 4], cycle_time[(reg1 & 0x70) >> 4]);
-	p += sprintf(p, "                Data Active Time   %s \t Data Active Time   %s\n",
-		     active_time[(reg & 0x07)], active_time[(reg &0x07)] ); 
-
-	rc = pci_read_config_byte(bmide_dev, 0x42, &reg);
-	rc = pci_read_config_byte(bmide_dev, 0x46, &reg1);
-	p += sprintf(p, "                Data Recovery Time %s \t Data Recovery Time %s\n",
-		     recovery_time[(reg & 0x0f)], recovery_time[(reg1 & 0x0f)]);
-	return p-buffer;
-}
-#endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-byte sis_proc = 0;
-extern char *ide_xfer_verbose (byte xfer_rate);
-
-/*
- * ((id->hw_config & 0x2000) && (HWIF(drive)->udma_four))
- */
-static int config_chipset_for_dma (ide_drive_t *drive, byte ultra)
-{
-	struct hd_driveid *id	= drive->id;
-	ide_hwif_t *hwif	= HWIF(drive);
-	struct pci_dev *dev	= hwif->pci_dev;
-
-	byte			drive_pci, test1, test2, mask;
-	int			err;
-
-	unsigned long dma_base	= hwif->dma_base;
-	byte unit		= (drive->select.b.unit & 0x01);
-	byte speed		= 0x00, unmask = 0xE0, four_two = 0x00;
-	int drive_number	= ((hwif->channel ? 2 : 0) + unit);
-	byte udma_66		= ((id->hw_config & 0x2000) && (hwif->udma_four)) ? 1 : 0;
-
-	if (host_dev) {
-		switch(host_dev->device) {
-			case PCI_DEVICE_ID_SI_530:
-			case PCI_DEVICE_ID_SI_540:
-			case PCI_DEVICE_ID_SI_620:
-			case PCI_DEVICE_ID_SI_630:
-				unmask   = 0xF0;
-				four_two = 0x01;
-			default:
-				break;
-		}
-	}
-
-	switch(drive_number) {
-		case 0:		drive_pci = 0x40;break;
-		case 1:		drive_pci = 0x42;break;
-		case 2:		drive_pci = 0x44;break;
-		case 3:		drive_pci = 0x46;break;
-		default:	return ide_dma_off;
-	}
-
-	pci_read_config_byte(dev, drive_pci, &test1);
-	pci_read_config_byte(dev, drive_pci|0x01, &test2);
-
-	if ((!ultra) && (test2 & 0x80)) {
-		pci_write_config_byte(dev, drive_pci|0x01, test2 & ~0x80);
-		pci_read_config_byte(dev, drive_pci|0x01, &test2);
-	}
-
-	if ((id->dma_ultra & 0x0010) && (ultra) && (udma_66) && (four_two)) {
-		if (!(test2 & 0x90)) {
-			pci_write_config_byte(dev, drive_pci|0x01, test2 & ~unmask);
-			pci_write_config_byte(dev, drive_pci|0x01, test2|0x90);
-		}
-		speed = XFER_UDMA_4;
-	} else if ((id->dma_ultra & 0x0008) && (ultra) && (udma_66) && (four_two)) {
-		if (!(test2 & 0xA0)) {
-			pci_write_config_byte(dev, drive_pci|0x01, test2 & ~unmask);
-			pci_write_config_byte(dev, drive_pci|0x01, test2|0xA0);
-		}
-		speed = XFER_UDMA_3;
-	} else if ((id->dma_ultra & 0x0004) && (ultra)) {
-		mask = (four_two) ? 0xB0 : 0xA0;
-		if (!(test2 & mask)) {
-			pci_write_config_byte(dev, drive_pci|0x01, test2 & ~unmask);
-			pci_write_config_byte(dev, drive_pci|0x01, test2|mask);
-		}
-		speed = XFER_UDMA_2;
-	} else if ((id->dma_ultra & 0x0002) && (ultra)) {
-		mask = (four_two) ? 0xD0 : 0xC0;
-		if (!(test2 & mask)) {
-			pci_write_config_byte(dev, drive_pci|0x01, test2 & ~unmask);
-			pci_write_config_byte(dev, drive_pci|0x01, test2|mask);
-		}
-		speed = XFER_UDMA_1;
-	} else if ((id->dma_ultra & 0x0001) && (ultra)) {
-		if (!(test2 & unmask)) {
-			pci_write_config_byte(dev, drive_pci|0x01, test2 & ~unmask);
-			pci_write_config_byte(dev, drive_pci|0x01, test2|unmask);
-		}
-		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 {
-		return ((int) ide_dma_off_quietly);
-	}
-
-	outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
-	err = ide_config_drive_speed(drive, speed);
-
-#if SIS5513_DEBUG_DRIVE_INFO
-	printk("%s: %s drive%d\n", drive->name, ide_xfer_verbose(speed), drive_number);
-#endif /* SIS5513_DEBUG_DRIVE_INFO */
-
-	return ((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);
-}
-
-static void config_drive_art_rwp (ide_drive_t *drive)
-{
-	ide_hwif_t *hwif		= HWIF(drive);
-	struct pci_dev *dev		= hwif->pci_dev;
-
-	byte				timing, pio, drive_pci, test1, test2;
-
-	unsigned short eide_pio_timing[6] = {600, 390, 240, 180, 120, 90};
-	unsigned short xfer_pio		= drive->id->eide_pio_modes;
-	int drive_number		= ((hwif->channel ? 2 : 0) + (drive->select.b.unit & 0x01));
-
-	if (drive->media == ide_disk) {
-		struct pci_dev *dev	= hwif->pci_dev;
-		byte reg4bh		= 0;
-                byte rw_prefetch	= (0x11 << drive_number);
-
-		pci_read_config_byte(dev, 0x4b, &reg4bh);
-		if ((reg4bh & rw_prefetch) != rw_prefetch)
-			pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
-	}
-
-	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 : xfer_pio;
-	}
-
-	timing = (xfer_pio >= pio) ? xfer_pio : pio;
-
-/*
- *               Mode 0       Mode 1     Mode 2     Mode 3     Mode 4
- * Active time    8T (240ns)  6T (180ns) 4T (120ns) 3T  (90ns) 3T  (90ns)
- * 0x41 2:0 bits  000          110        100        011        011
- * Recovery time 12T (360ns)  7T (210ns) 4T (120ns) 3T  (90ns) 1T  (30ns)
- * 0x40 3:0 bits 0000         0111       0100       0011       0001
- * Cycle time    20T (600ns) 13T (390ns) 8T (240ns) 6T (180ns) 4T (120ns)
- */
-
-	switch(drive_number) {
-		case 0:		drive_pci = 0x40;break;
-		case 1:		drive_pci = 0x42;break;
-		case 2:		drive_pci = 0x44;break;
-		case 3:		drive_pci = 0x46;break;
-		default:	return;
-	}
-
-	pci_read_config_byte(dev, drive_pci, &test1);
-	pci_read_config_byte(dev, drive_pci|0x01, &test2);
-
-	/*
-	 * Do a blanket clear of active and recovery timings.
-	 */
-
-	test1 &= ~0x07;
-	test2 &= ~0x0F;
-
-	switch(timing) {
-		case 4:		test1 |= 0x01;test2 |= 0x03;break;
-		case 3:		test1 |= 0x03;test2 |= 0x03;break;
-		case 2:		test1 |= 0x04;test2 |= 0x04;break;
-		case 1:		test1 |= 0x07;test2 |= 0x06;break;
-		default:	break;
-	}
-
-	pci_write_config_byte(dev, drive_pci, test1);
-	pci_write_config_byte(dev, drive_pci|0x01, test2);
-}
-
-static int config_drive_xfer_rate (ide_drive_t *drive)
-{
-	struct hd_driveid *id		= drive->id;
-	ide_dma_action_t dma_func	= ide_dma_off_quietly;
-
-	if (id && (id->capability & 1) && HWIF(drive)->autodma) {
-		/* Consult the list of known "bad" drives */
-		if (ide_dmaproc(ide_dma_bad_drive, drive)) {
-			return HWIF(drive)->dmaproc(ide_dma_off, drive);
-		}
-
-		if (id->field_valid & 4) {
-			if (id->dma_ultra & 0x001F) {
-				/* Force if Capable UltraDMA */
-				dma_func = config_chipset_for_dma(drive, 1);
-				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, 0);
-			}
-		} else if ((ide_dmaproc(ide_dma_good_drive, drive)) &&
-			   (id->eide_dma_time > 150)) {
-			/* Consult the list of known "good" drives */
-			dma_func = config_chipset_for_dma(drive, 0);
-		}
-	}
-	return HWIF(drive)->dmaproc(dma_func, drive);
-}
-
-/*
- * sis5513_dmaproc() initiates/aborts (U)DMA read/write operations on a drive.
- */
-int sis5513_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
-{
-	switch (func) {
-		case ide_dma_check:
-			config_drive_art_rwp(drive);
-			return config_drive_xfer_rate(drive);
-		default:
-			break;
-	}
-	return ide_dmaproc(func, drive);	/* use standard DMA stuff */
-}
-
-unsigned int __init pci_init_sis5513 (struct pci_dev *dev, const char *name)
-{
-	struct pci_dev *host;
-	int i = 0;
-	byte latency = 0;
-
-	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &latency);
-
-	for (i = 0; i < arraysize (SiSHostChipInfo) && !host_dev; i++) {
-		host = pci_find_device (PCI_VENDOR_ID_SI,
-					SiSHostChipInfo[i].host_id,
-					NULL);
-		if (!host)
-			continue;
-
-		host_dev = host;
-		printk(SiSHostChipInfo[i].name);
-		printk("\n");
-		if (SiSHostChipInfo[i].flags & SIS5513_FLAG_LATENCY) {
-			if (latency != 0x10)
-				pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
-		}
-	}
-
-	if (host_dev) {
-		byte reg52h = 0;
-
-		pci_read_config_byte(dev, 0x52, &reg52h);
-		if (!(reg52h & 0x04)) {
-			/* set IDE controller to operate in Compabitility mode obly */
-			pci_write_config_byte(dev, 0x52, reg52h|0x04);
-		}
-#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
-		sis_proc = 1;
-		bmide_dev = dev;
-		sis_display_info = &sis_get_info;
-#endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
-	}
-	return 0;
-}
-
-unsigned int __init ata66_sis5513 (ide_hwif_t *hwif)
-{
-	byte reg48h = 0, ata66 = 0;
-	byte mask = hwif->channel ? 0x20 : 0x10;
-	pci_read_config_byte(hwif->pci_dev, 0x48, &reg48h);
-
-	if (host_dev) {
-		switch(host_dev->device) {
-			case PCI_DEVICE_ID_SI_530:
-			case PCI_DEVICE_ID_SI_540:
-			case PCI_DEVICE_ID_SI_620:
-			case PCI_DEVICE_ID_SI_630:
-				ata66 = (reg48h & mask) ? 0 : 1;
-			default:
-				break;
-		}
-	}
-        return (ata66);
-}
-
-void __init ide_init_sis5513 (ide_hwif_t *hwif)
-{
-
-	hwif->irq = hwif->channel ? 15 : 14;
-
-	if (!(hwif->dma_base))
-		return;
-
-	if (host_dev) {
-		switch(host_dev->device) {
-			case PCI_DEVICE_ID_SI_530:
-			case PCI_DEVICE_ID_SI_540:
-			case PCI_DEVICE_ID_SI_620:
-			case PCI_DEVICE_ID_SI_630:
-			case PCI_DEVICE_ID_SI_5600:
-			case PCI_DEVICE_ID_SI_5597:
-			case PCI_DEVICE_ID_SI_5591:
-				hwif->autodma = 1;
-				hwif->dmaproc = &sis5513_dmaproc;
-				break;
-			default:
-				hwif->autodma = 0;
-				break;
-		}
-	}
-	return;
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)