hpt34x.c 5.2 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
/*
 * linux/drivers/ide/pci/hpt34x.c		Version 0.40	Sept 10, 2002
 *
 * Copyright (C) 1998-2000	Andre Hedrick <andre@linux-ide.org>
 * May be copied or modified under the terms of the GNU General Public License
 *
 *
 * 00:12.0 Unknown mass storage controller:
 * Triones Technologies, Inc.
 * Unknown device 0003 (rev 01)
 *
 * hde: UDMA 2 (0x0000 0x0002) (0x0000 0x0010)
 * hdf: UDMA 2 (0x0002 0x0012) (0x0010 0x0030)
 * hde: DMA 2  (0x0000 0x0002) (0x0000 0x0010)
 * hdf: DMA 2  (0x0002 0x0012) (0x0010 0x0030)
 * hdg: DMA 1  (0x0012 0x0052) (0x0030 0x0070)
 * hdh: DMA 1  (0x0052 0x0252) (0x0070 0x00f0)
 *
 * ide-pci.c reference
 *
 * Since there are two cards that report almost identically,
 * the only discernable difference is the values reported in pcicmd.
 * Booting-BIOS card or HPT363 :: pcicmd == 0x07
 * Non-bootable card or HPT343 :: pcicmd == 0x05
 */

#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>

#define HPT343_DEBUG_DRIVE_INFO		0

46
static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed)
L
Linus Torvalds 已提交
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
{
	struct pci_dev *dev	= HWIF(drive)->pci_dev;
	u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
	u8			hi_speed, lo_speed;

	hi_speed = speed >> 4;
	lo_speed = speed & 0x0f;

	if (hi_speed & 7) {
		hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
	} else {
		lo_speed <<= 5;
		lo_speed >>= 5;
	}

	pci_read_config_dword(dev, 0x44, &reg1);
	pci_read_config_dword(dev, 0x48, &reg2);
	tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
65
	tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
L
Linus Torvalds 已提交
66 67 68 69 70 71 72 73 74 75 76 77
	pci_write_config_dword(dev, 0x44, tmp1);
	pci_write_config_dword(dev, 0x48, tmp2);

#if HPT343_DEBUG_DRIVE_INFO
	printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
		" (0x%02x 0x%02x)\n",
		drive->name, ide_xfer_verbose(speed),
		drive->dn, reg1, tmp1, reg2, tmp2,
		hi_speed, lo_speed);
#endif /* HPT343_DEBUG_DRIVE_INFO */
}

78
static void hpt34x_set_pio_mode(ide_drive_t *drive, const u8 pio)
L
Linus Torvalds 已提交
79
{
80
	hpt34x_set_mode(drive, XFER_PIO_0 + pio);
L
Linus Torvalds 已提交
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
}

/*
 * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
 */
#define	HPT34X_PCI_INIT_REG		0x80

static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name)
{
	int i = 0;
	unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
	unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
	unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
	u16 cmd;
	unsigned long flags;

	local_irq_save(flags);

	pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
	pci_read_config_word(dev, PCI_COMMAND, &cmd);

A
Alan Cox 已提交
102
	if (cmd & PCI_COMMAND_MEMORY)
L
Linus Torvalds 已提交
103
		pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
A
Alan Cox 已提交
104
	else
L
Linus Torvalds 已提交
105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
		pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);

	/*
	 * Since 20-23 can be assigned and are R/W, we correct them.
	 */
	pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
	for(i=0; i<4; i++) {
		dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
		dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
		dev->resource[i].flags = IORESOURCE_IO;
		pci_write_config_dword(dev,
				(PCI_BASE_ADDRESS_0 + (i * 4)),
				dev->resource[i].start);
	}
	pci_write_config_word(dev, PCI_COMMAND, cmd);

	local_irq_restore(flags);

	return dev->irq;
}

static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
{
	u16 pcicmd = 0;

	hwif->autodma = 0;

132
	hwif->set_pio_mode = &hpt34x_set_pio_mode;
133 134
	hwif->set_dma_mode = &hpt34x_set_mode;

L
Linus Torvalds 已提交
135 136 137 138 139 140 141 142
	hwif->drives[0].autotune = 1;
	hwif->drives[1].autotune = 1;

	pci_read_config_word(hwif->pci_dev, PCI_COMMAND, &pcicmd);

	if (!hwif->dma_base)
		return;

143
#ifdef CONFIG_HPT34X_AUTODMA
L
Linus Torvalds 已提交
144 145 146
	hwif->ultra_mask = 0x07;
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;
147
#endif
L
Linus Torvalds 已提交
148 149 150 151 152 153 154 155 156 157 158 159 160

	if (!noautodma)
		hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
	hwif->drives[0].autodma = hwif->autodma;
	hwif->drives[1].autodma = hwif->autodma;
}

static ide_pci_device_t hpt34x_chipset __devinitdata = {
	.name		= "HPT34X",
	.init_chipset	= init_chipset_hpt34x,
	.init_hwif	= init_hwif_hpt34x,
	.autodma	= NOAUTODMA,
	.bootable	= NEVER_BOARD,
B
Bartlomiej Zolnierkiewicz 已提交
161 162
	.extra		= 16,
	.pio_mask	= ATA_PIO5,
L
Linus Torvalds 已提交
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190
};

static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	ide_pci_device_t *d = &hpt34x_chipset;
	static char *chipset_names[] = {"HPT343", "HPT345"};
	u16 pcicmd = 0;

	pci_read_config_word(dev, PCI_COMMAND, &pcicmd);

	d->name = chipset_names[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
	d->bootable = (pcicmd & PCI_COMMAND_MEMORY) ? OFF_BOARD : NEVER_BOARD;

	return ide_setup_pci_device(dev, d);
}

static struct pci_device_id hpt34x_pci_tbl[] = {
	{ PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, hpt34x_pci_tbl);

static struct pci_driver driver = {
	.name		= "HPT34x_IDE",
	.id_table	= hpt34x_pci_tbl,
	.probe		= hpt34x_init_one,
};

191
static int __init hpt34x_ide_init(void)
L
Linus Torvalds 已提交
192 193 194 195 196 197 198 199 200
{
	return ide_pci_register_driver(&driver);
}

module_init(hpt34x_ide_init);

MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
MODULE_LICENSE("GPL");