drivers/ide/pci/hpt34x.c

   1 /*
   2  * linux/drivers/ide/pci/hpt34x.c               Version 0.40    Sept 10, 2002
   3  *
   4  * Copyright (C) 1998-2000      Andre Hedrick <andre@linux-ide.org>
   5  * May be copied or modified under the terms of the GNU General Public License
   6  *
   7  *
   8  * 00:12.0 Unknown mass storage controller:
   9  * Triones Technologies, Inc.
  10  * Unknown device 0003 (rev 01)
  11  *
  12  * hde: UDMA 2 (0x0000 0x0002) (0x0000 0x0010)
  13  * hdf: UDMA 2 (0x0002 0x0012) (0x0010 0x0030)
  14  * hde: DMA 2  (0x0000 0x0002) (0x0000 0x0010)
  15  * hdf: DMA 2  (0x0002 0x0012) (0x0010 0x0030)
  16  * hdg: DMA 1  (0x0012 0x0052) (0x0030 0x0070)
  17  * hdh: DMA 1  (0x0052 0x0252) (0x0070 0x00f0)
  18  *
  19  * ide-pci.c reference
  20  *
  21  * Since there are two cards that report almost identically,
  22  * the only discernable difference is the values reported in pcicmd.
  23  * Booting-BIOS card or HPT363 :: pcicmd == 0x07
  24  * Non-bootable card or HPT343 :: pcicmd == 0x05
  25  */
  26
  27 #include <linux/module.h>
  28 #include <linux/types.h>
  29 #include <linux/kernel.h>
  30 #include <linux/delay.h>
  31 #include <linux/timer.h>
  32 #include <linux/mm.h>
  33 #include <linux/ioport.h>
  34 #include <linux/blkdev.h>
  35 #include <linux/hdreg.h>
  36 #include <linux/interrupt.h>
  37 #include <linux/pci.h>
  38 #include <linux/init.h>
  39 #include <linux/ide.h>
  40
  41 #include <asm/io.h>
  42 #include <asm/irq.h>
  43
  44 #define HPT343_DEBUG_DRIVE_INFO         0
  45
  46 static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed)
  47 {
  48         struct pci_dev *dev     = HWIF(drive)->pci_dev;
  49         u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
  50         u8                      hi_speed, lo_speed;
  51
  52         hi_speed = speed >> 4;
  53         lo_speed = speed & 0x0f;
  54
  55         if (hi_speed & 7) {
  56                 hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
  57         } else {
  58                 lo_speed <<= 5;
  59                 lo_speed >>= 5;
  60         }
  61
  62         pci_read_config_dword(dev, 0x44, &reg1);
  63         pci_read_config_dword(dev, 0x48, &reg2);
  64         tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
  65         tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
  66         pci_write_config_dword(dev, 0x44, tmp1);
  67         pci_write_config_dword(dev, 0x48, tmp2);
  68
  69 #if HPT343_DEBUG_DRIVE_INFO
  70         printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
  71                 " (0x%02x 0x%02x)\n",
  72                 drive->name, ide_xfer_verbose(speed),
  73                 drive->dn, reg1, tmp1, reg2, tmp2,
  74                 hi_speed, lo_speed);
  75 #endif /* HPT343_DEBUG_DRIVE_INFO */
  76 }
  77
  78 static void hpt34x_set_pio_mode(ide_drive_t *drive, const u8 pio)
  79 {
  80         hpt34x_set_mode(drive, XFER_PIO_0 + pio);
  81 }
  82
  83 /*
  84  * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
  85  */
  86 #define HPT34X_PCI_INIT_REG             0x80
  87
  88 static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name)
  89 {
  90         int i = 0;
  91         unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
  92         unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
  93         unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
  94         u16 cmd;
  95         unsigned long flags;
  96
  97         local_irq_save(flags);
  98
  99         pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
 100         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 101
 102         if (cmd & PCI_COMMAND_MEMORY)
 103                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
 104         else
 105                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
 106
 107         /*
 108          * Since 20-23 can be assigned and are R/W, we correct them.
 109          */
 110         pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
 111         for(i=0; i<4; i++) {
 112                 dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
 113                 dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
 114                 dev->resource[i].flags = IORESOURCE_IO;
 115                 pci_write_config_dword(dev,
 116                                 (PCI_BASE_ADDRESS_0 + (i * 4)),
 117                                 dev->resource[i].start);
 118         }
 119         pci_write_config_word(dev, PCI_COMMAND, cmd);
 120
 121         local_irq_restore(flags);
 122
 123         return dev->irq;
 124 }
 125
 126 static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
 127 {
 128         u16 pcicmd = 0;
 129
 130         hwif->autodma = 0;
 131
 132         hwif->set_pio_mode = &hpt34x_set_pio_mode;
 133         hwif->set_dma_mode = &hpt34x_set_mode;
 134
 135         hwif->drives[0].autotune = 1;
 136         hwif->drives[1].autotune = 1;
 137
 138         pci_read_config_word(hwif->pci_dev, PCI_COMMAND, &pcicmd);
 139
 140         if (!hwif->dma_base)
 141                 return;
 142
 143 #ifdef CONFIG_HPT34X_AUTODMA
 144         hwif->ultra_mask = 0x07;
 145         hwif->mwdma_mask = 0x07;
 146         hwif->swdma_mask = 0x07;
 147 #endif
 148
 149         if (!noautodma)
 150                 hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
 151         hwif->drives[0].autodma = hwif->autodma;
 152         hwif->drives[1].autodma = hwif->autodma;
 153 }
 154
 155 static ide_pci_device_t hpt34x_chipset __devinitdata = {
 156         .name           = "HPT34X",
 157         .init_chipset   = init_chipset_hpt34x,
 158         .init_hwif      = init_hwif_hpt34x,
 159         .autodma        = NOAUTODMA,
 160         .bootable       = NEVER_BOARD,
 161         .extra          = 16,
 162         .pio_mask       = ATA_PIO5,
 163 };
 164
 165 static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 166 {
 167         ide_pci_device_t *d = &hpt34x_chipset;
 168         static char *chipset_names[] = {"HPT343", "HPT345"};
 169         u16 pcicmd = 0;
 170
 171         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
 172
 173         d->name = chipset_names[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
 174         d->bootable = (pcicmd & PCI_COMMAND_MEMORY) ? OFF_BOARD : NEVER_BOARD;
 175
 176         return ide_setup_pci_device(dev, d);
 177 }
 178
 179 static struct pci_device_id hpt34x_pci_tbl[] = {
 180         { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 181         { 0, },
 182 };
 183 MODULE_DEVICE_TABLE(pci, hpt34x_pci_tbl);
 184
 185 static struct pci_driver driver = {
 186         .name           = "HPT34x_IDE",
 187         .id_table       = hpt34x_pci_tbl,
 188         .probe          = hpt34x_init_one,
 189 };
 190
 191 static int __init hpt34x_ide_init(void)
 192 {
 193         return ide_pci_register_driver(&driver);
 194 }
 195
 196 module_init(hpt34x_ide_init);
 197
 198 MODULE_AUTHOR("Andre Hedrick");
 199 MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
 200 MODULE_LICENSE("GPL");