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 int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
  47 {
  48         struct pci_dev *dev     = HWIF(drive)->pci_dev;
  49         u8 speed = ide_rate_filter(drive, xferspeed);
  50         u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
  51         u8                      hi_speed, lo_speed;
  52
  53         hi_speed = speed >> 4;
  54         lo_speed = speed & 0x0f;
  55
  56         if (hi_speed & 7) {
  57                 hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
  58         } else {
  59                 lo_speed <<= 5;
  60                 lo_speed >>= 5;
  61         }
  62
  63         pci_read_config_dword(dev, 0x44, &reg1);
  64         pci_read_config_dword(dev, 0x48, &reg2);
  65         tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
  66         tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
  67         pci_write_config_dword(dev, 0x44, tmp1);
  68         pci_write_config_dword(dev, 0x48, tmp2);
  69
  70 #if HPT343_DEBUG_DRIVE_INFO
  71         printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
  72                 " (0x%02x 0x%02x)\n",
  73                 drive->name, ide_xfer_verbose(speed),
  74                 drive->dn, reg1, tmp1, reg2, tmp2,
  75                 hi_speed, lo_speed);
  76 #endif /* HPT343_DEBUG_DRIVE_INFO */
  77
  78         return(ide_config_drive_speed(drive, speed));
  79 }
  80
  81 static void hpt34x_tune_drive (ide_drive_t *drive, u8 pio)
  82 {
  83         pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
  84         (void) hpt34x_tune_chipset(drive, (XFER_PIO_0 + pio));
  85 }
  86
  87 static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
  88 {
  89         drive->init_speed = 0;
  90
  91         if (ide_tune_dma(drive))
  92 #ifndef CONFIG_HPT34X_AUTODMA
  93                 return -1;
  94 #else
  95                 return 0;
  96 #endif
  97
  98         if (ide_use_fast_pio(drive))
  99                 hpt34x_tune_drive(drive, 255);
 100
 101         return -1;
 102 }
 103
 104 /*
 105  * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
 106  */
 107 #define HPT34X_PCI_INIT_REG             0x80
 108
 109 static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name)
 110 {
 111         int i = 0;
 112         unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
 113         unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
 114         unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
 115         u16 cmd;
 116         unsigned long flags;
 117
 118         local_irq_save(flags);
 119
 120         pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
 121         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 122
 123         if (cmd & PCI_COMMAND_MEMORY) {
 124                 if (pci_resource_start(dev, PCI_ROM_RESOURCE)) {
 125                         pci_write_config_dword(dev, PCI_ROM_ADDRESS,
 126                                 dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 127                         printk(KERN_INFO "HPT345: ROM enabled at 0x%08lx\n",
 128                                 (unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
 129                 }
 130                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
 131         } else {
 132                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
 133         }
 134
 135         /*
 136          * Since 20-23 can be assigned and are R/W, we correct them.
 137          */
 138         pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
 139         for(i=0; i<4; i++) {
 140                 dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
 141                 dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
 142                 dev->resource[i].flags = IORESOURCE_IO;
 143                 pci_write_config_dword(dev,
 144                                 (PCI_BASE_ADDRESS_0 + (i * 4)),
 145                                 dev->resource[i].start);
 146         }
 147         pci_write_config_word(dev, PCI_COMMAND, cmd);
 148
 149         local_irq_restore(flags);
 150
 151         return dev->irq;
 152 }
 153
 154 static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
 155 {
 156         u16 pcicmd = 0;
 157
 158         hwif->autodma = 0;
 159
 160         hwif->tuneproc = &hpt34x_tune_drive;
 161         hwif->speedproc = &hpt34x_tune_chipset;
 162         hwif->drives[0].autotune = 1;
 163         hwif->drives[1].autotune = 1;
 164
 165         pci_read_config_word(hwif->pci_dev, PCI_COMMAND, &pcicmd);
 166
 167         if (!hwif->dma_base)
 168                 return;
 169
 170         hwif->ultra_mask = 0x07;
 171         hwif->mwdma_mask = 0x07;
 172         hwif->swdma_mask = 0x07;
 173
 174         hwif->ide_dma_check = &hpt34x_config_drive_xfer_rate;
 175         if (!noautodma)
 176                 hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
 177         hwif->drives[0].autodma = hwif->autodma;
 178         hwif->drives[1].autodma = hwif->autodma;
 179 }
 180
 181 static ide_pci_device_t hpt34x_chipset __devinitdata = {
 182         .name           = "HPT34X",
 183         .init_chipset   = init_chipset_hpt34x,
 184         .init_hwif      = init_hwif_hpt34x,
 185         .channels       = 2,
 186         .autodma        = NOAUTODMA,
 187         .bootable       = NEVER_BOARD,
 188         .extra          = 16
 189 };
 190
 191 static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 192 {
 193         ide_pci_device_t *d = &hpt34x_chipset;
 194         static char *chipset_names[] = {"HPT343", "HPT345"};
 195         u16 pcicmd = 0;
 196
 197         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
 198
 199         d->name = chipset_names[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
 200         d->bootable = (pcicmd & PCI_COMMAND_MEMORY) ? OFF_BOARD : NEVER_BOARD;
 201
 202         return ide_setup_pci_device(dev, d);
 203 }
 204
 205 static struct pci_device_id hpt34x_pci_tbl[] = {
 206         { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 207         { 0, },
 208 };
 209 MODULE_DEVICE_TABLE(pci, hpt34x_pci_tbl);
 210
 211 static struct pci_driver driver = {
 212         .name           = "HPT34x_IDE",
 213         .id_table       = hpt34x_pci_tbl,
 214         .probe          = hpt34x_init_one,
 215 };
 216
 217 static int __init hpt34x_ide_init(void)
 218 {
 219         return ide_pci_register_driver(&driver);
 220 }
 221
 222 module_init(hpt34x_ide_init);
 223
 224 MODULE_AUTHOR("Andre Hedrick");
 225 MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
 226 MODULE_LICENSE("GPL");