/*
* 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/ioport.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#define DRV_NAME "hpt34x"
#define HPT343_DEBUG_DRIVE_INFO 0
static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed)
{
struct pci_dev *dev = to_pci_dev(drive->hwif->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, ®1);
pci_read_config_dword(dev, 0x48, ®2);
tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
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 */
}
static void hpt34x_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
hpt34x_set_mode(drive, XFER_PIO_0 + pio);
}
/*
* 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)
{
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);
if (cmd & PCI_COMMAND_MEMORY)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
else
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 const struct ide_port_ops hpt34x_port_ops = {
.set_pio_mode = hpt34x_set_pio_mode,
.set_dma_mode = hpt34x_set_mode,
};
#define IDE_HFLAGS_HPT34X \
(IDE_HFLAG_NO_ATAPI_DMA | \
IDE_HFLAG_NO_DSC | \
IDE_HFLAG_NO_AUTODMA)
static const struct ide_port_info hpt34x_chipsets[] __devinitdata = {
{ /* 0: HPT343 */
.name = DRV_NAME,
.init_chipset = init_chipset_hpt34x,
.port_ops = &hpt34x_port_ops,
.host_flags = IDE_HFLAGS_HPT34X | IDE_HFLAG_NON_BOOTABLE,
.pio_mask = ATA_PIO5,
},
{ /* 1: HPT345 */
.name = DRV_NAME,
.init_chipset = init_chipset_hpt34x,
.port_ops = &hpt34x_port_ops,
.host_flags = IDE_HFLAGS_HPT34X | IDE_HFLAG_OFF_BOARD,
.pio_mask = ATA_PIO5,
#ifdef CONFIG_HPT34X_AUTODMA
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA2,
#endif
}
};
static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
const struct ide_port_info *d;
u16 pcicmd = 0;
pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
d = &hpt34x_chipsets[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
return ide_pci_init_one(dev, d, NULL);
}
static const struct pci_device_id hpt34x_pci_tbl[] = {
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT343), 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,
.remove = ide_pci_remove,
};
static int __init hpt34x_ide_init(void)
{
return ide_pci_register_driver(&driver);
}
static void __exit hpt34x_ide_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(hpt34x_ide_init);
module_exit(hpt34x_ide_exit);
MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
MODULE_LICENSE("GPL");
