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/config.h>
  28 #include <linux/module.h>
  29 #include <linux/types.h>
  30 #include <linux/kernel.h>
  31 #include <linux/delay.h>
  32 #include <linux/timer.h>
  33 #include <linux/mm.h>
  34 #include <linux/ioport.h>
  35 #include <linux/blkdev.h>
  36 #include <linux/hdreg.h>
  37 #include <linux/interrupt.h>
  38 #include <linux/pci.h>
  39 #include <linux/init.h>
  40 #include <linux/ide.h>
  41
  42 #include <asm/io.h>
  43 #include <asm/irq.h>
  44
  45 #include "ide_modes.h"
  46 #include "hpt34x.h"
  47
  48 #if defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS)
  49 #include <linux/stat.h>
  50 #include <linux/proc_fs.h>
  51
  52 static u8 hpt34x_proc = 0;
  53
  54 #define HPT34X_MAX_DEVS         8
  55 static struct pci_dev *hpt34x_devs[HPT34X_MAX_DEVS];
  56 static int n_hpt34x_devs;
  57
  58 static int hpt34x_get_info (char *buffer, char **addr, off_t offset, int count)
  59 {
  60         char *p = buffer;
  61         int i, len;
  62
  63         p += sprintf(p, "\n                             "
  64                         "HPT34X Chipset.\n");
  65         for (i = 0; i < n_hpt34x_devs; i++) {
  66                 struct pci_dev *dev = hpt34x_devs[i];
  67                 unsigned long bibma = pci_resource_start(dev, 4);
  68                 u8  c0 = 0, c1 = 0;
  69
  70                 /*
  71                  * at that point bibma+0x2 et bibma+0xa are byte registers
  72                  * to investigate:
  73                  */
  74                 c0 = inb_p((u16)bibma + 0x02);
  75                 c1 = inb_p((u16)bibma + 0x0a);
  76                 p += sprintf(p, "\nController: %d\n", i);
  77                 p += sprintf(p, "--------------- Primary Channel "
  78                                 "---------------- Secondary Channel "
  79                                 "-------------\n");
  80                 p += sprintf(p, "                %sabled "
  81                                 "                        %sabled\n",
  82                                 (c0&0x80) ? "dis" : " en",
  83                                 (c1&0x80) ? "dis" : " en");
  84                 p += sprintf(p, "--------------- drive0 --------- drive1 "
  85                                 "-------- drive0 ---------- drive1 ------\n");
  86                 p += sprintf(p, "DMA enabled:    %s              %s"
  87                                 "             %s               %s\n",
  88                                 (c0&0x20) ? "yes" : "no ",
  89                                 (c0&0x40) ? "yes" : "no ",
  90                                 (c1&0x20) ? "yes" : "no ",
  91                                 (c1&0x40) ? "yes" : "no " );
  92
  93                 p += sprintf(p, "UDMA\n");
  94                 p += sprintf(p, "DMA\n");
  95                 p += sprintf(p, "PIO\n");
  96         }
  97         p += sprintf(p, "\n");
  98
  99         /* p - buffer must be less than 4k! */
 100         len = (p - buffer) - offset;
 101         *addr = buffer + offset;
 102
 103         return len > count ? count : len;
 104 }
 105 #endif  /* defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS) */
 106
 107 static u8 hpt34x_ratemask (ide_drive_t *drive)
 108 {
 109         return 1;
 110 }
 111
 112 static void hpt34x_clear_chipset (ide_drive_t *drive)
 113 {
 114         struct pci_dev *dev     = HWIF(drive)->pci_dev;
 115         u32 reg1 = 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
 116
 117         pci_read_config_dword(dev, 0x44, &reg1);
 118         pci_read_config_dword(dev, 0x48, &reg2);
 119         tmp1 = ((0x00 << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
 120         tmp2 = (reg2 & ~(0x11 << drive->dn));
 121         pci_write_config_dword(dev, 0x44, tmp1);
 122         pci_write_config_dword(dev, 0x48, tmp2);
 123 }
 124
 125 static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 126 {
 127         struct pci_dev *dev     = HWIF(drive)->pci_dev;
 128         u8 speed        = ide_rate_filter(hpt34x_ratemask(drive), xferspeed);
 129         u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
 130         u8                      hi_speed, lo_speed;
 131
 132         SPLIT_BYTE(speed, hi_speed, lo_speed);
 133
 134         if (hi_speed & 7) {
 135                 hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
 136         } else {
 137                 lo_speed <<= 5;
 138                 lo_speed >>= 5;
 139         }
 140
 141         pci_read_config_dword(dev, 0x44, &reg1);
 142         pci_read_config_dword(dev, 0x48, &reg2);
 143         tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
 144         tmp2 = ((hi_speed << drive->dn) | reg2);
 145         pci_write_config_dword(dev, 0x44, tmp1);
 146         pci_write_config_dword(dev, 0x48, tmp2);
 147
 148 #if HPT343_DEBUG_DRIVE_INFO
 149         printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
 150                 " (0x%02x 0x%02x)\n",
 151                 drive->name, ide_xfer_verbose(speed),
 152                 drive->dn, reg1, tmp1, reg2, tmp2,
 153                 hi_speed, lo_speed);
 154 #endif /* HPT343_DEBUG_DRIVE_INFO */
 155
 156         return(ide_config_drive_speed(drive, speed));
 157 }
 158
 159 static void hpt34x_tune_drive (ide_drive_t *drive, u8 pio)
 160 {
 161         pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
 162         hpt34x_clear_chipset(drive);
 163         (void) hpt34x_tune_chipset(drive, (XFER_PIO_0 + pio));
 164 }
 165
 166 /*
 167  * This allows the configuration of ide_pci chipset registers
 168  * for cards that learn about the drive's UDMA, DMA, PIO capabilities
 169  * after the drive is reported by the OS.  Initially for designed for
 170  * HPT343 UDMA chipset by HighPoint|Triones Technologies, Inc.
 171  */
 172
 173 static int config_chipset_for_dma (ide_drive_t *drive)
 174 {
 175         u8 speed = ide_dma_speed(drive, hpt34x_ratemask(drive));
 176
 177         if (!(speed))
 178                 return 0;
 179
 180         hpt34x_clear_chipset(drive);
 181         (void) hpt34x_tune_chipset(drive, speed);
 182         return ide_dma_enable(drive);
 183 }
 184
 185 static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
 186 {
 187         ide_hwif_t *hwif        = HWIF(drive);
 188         struct hd_driveid *id   = drive->id;
 189
 190         drive->init_speed = 0;
 191
 192         if (id && (id->capability & 1) && drive->autodma) {
 193                 /* Consult the list of known "bad" drives */
 194                 if (hwif->ide_dma_bad_drive(drive))
 195                         goto fast_ata_pio;
 196                 if (id->field_valid & 4) {
 197                         if (id->dma_ultra & hwif->ultra_mask) {
 198                                 /* Force if Capable UltraDMA */
 199                                 int dma = config_chipset_for_dma(drive);
 200                                 if ((id->field_valid & 2) && dma)
 201                                         goto try_dma_modes;
 202                         }
 203                 } else if (id->field_valid & 2) {
 204 try_dma_modes:
 205                         if ((id->dma_mword & hwif->mwdma_mask) ||
 206                             (id->dma_1word & hwif->swdma_mask)) {
 207                                 /* Force if Capable regular DMA modes */
 208                                 if (!config_chipset_for_dma(drive))
 209                                         goto no_dma_set;
 210                         }
 211                 } else if (hwif->ide_dma_good_drive(drive) &&
 212                            (id->eide_dma_time < 150)) {
 213                         /* Consult the list of known "good" drives */
 214                         if (!config_chipset_for_dma(drive))
 215                                 goto no_dma_set;
 216                 } else {
 217                         goto fast_ata_pio;
 218                 }
 219         } else if ((id->capability & 8) || (id->field_valid & 2)) {
 220 fast_ata_pio:
 221 no_dma_set:
 222                 hpt34x_tune_drive(drive, 255);
 223                 return hwif->ide_dma_off_quietly(drive);
 224         }
 225
 226 #ifndef CONFIG_HPT34X_AUTODMA
 227         return hwif->ide_dma_off_quietly(drive);
 228 #endif /* CONFIG_HPT34X_AUTODMA */
 229         return hwif->ide_dma_on(drive);
 230 }
 231
 232 /*
 233  * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
 234  */
 235 #define HPT34X_PCI_INIT_REG             0x80
 236
 237 static unsigned int __init init_chipset_hpt34x (struct pci_dev *dev, const char *name)
 238 {
 239         int i = 0;
 240         unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
 241         unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
 242         unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
 243         u16 cmd;
 244         unsigned long flags;
 245
 246         local_irq_save(flags);
 247
 248         pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
 249         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 250
 251         if (cmd & PCI_COMMAND_MEMORY) {
 252                 if (pci_resource_start(dev, PCI_ROM_RESOURCE)) {
 253                         pci_write_config_byte(dev, PCI_ROM_ADDRESS,
 254                                 dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 255                         printk(KERN_INFO "HPT345: ROM enabled at 0x%08lx\n",
 256                                 dev->resource[PCI_ROM_RESOURCE].start);
 257                 }
 258                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
 259         } else {
 260                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
 261         }
 262
 263         /*
 264          * Since 20-23 can be assigned and are R/W, we correct them.
 265          */
 266         pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
 267         for(i=0; i<4; i++) {
 268                 dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
 269                 dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
 270                 dev->resource[i].flags = IORESOURCE_IO;
 271                 pci_write_config_dword(dev,
 272                                 (PCI_BASE_ADDRESS_0 + (i * 4)),
 273                                 dev->resource[i].start);
 274         }
 275         pci_write_config_word(dev, PCI_COMMAND, cmd);
 276
 277         local_irq_restore(flags);
 278
 279 #if defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS)
 280         hpt34x_devs[n_hpt34x_devs++] = dev;
 281
 282         if (!hpt34x_proc) {
 283                 hpt34x_proc = 1;
 284                 ide_pci_register_host_proc(&hpt34x_procs[0]);
 285         }
 286 #endif /* DISPLAY_HPT34X_TIMINGS && CONFIG_PROC_FS */
 287
 288         return dev->irq;
 289 }
 290
 291 static void __init init_hwif_hpt34x (ide_hwif_t *hwif)
 292 {
 293         u16 pcicmd = 0;
 294
 295         hwif->autodma = 0;
 296
 297         hwif->tuneproc = &hpt34x_tune_drive;
 298         hwif->speedproc = &hpt34x_tune_chipset;
 299         hwif->no_dsc = 1;
 300         hwif->drives[0].autotune = 1;
 301         hwif->drives[1].autotune = 1;
 302
 303         pci_read_config_word(hwif->pci_dev, PCI_COMMAND, &pcicmd);
 304
 305         if (!hwif->dma_base)
 306                 return;
 307
 308         hwif->ultra_mask = 0x07;
 309         hwif->mwdma_mask = 0x07;
 310         hwif->swdma_mask = 0x07;
 311
 312         hwif->ide_dma_check = &hpt34x_config_drive_xfer_rate;
 313         if (!noautodma)
 314                 hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
 315         hwif->drives[0].autodma = hwif->autodma;
 316         hwif->drives[1].autodma = hwif->autodma;
 317 }
 318
 319 static void __init init_dma_hpt34x (ide_hwif_t *hwif, unsigned long dmabase)
 320 {
 321         ide_setup_dma(hwif, dmabase, 8);
 322 }
 323
 324 extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
 325
 326 static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 327 {
 328         ide_pci_device_t *d = &hpt34x_chipsets[id->driver_data];
 329         static char *chipset_names[] = {"HPT343", "HPT345"};
 330         u16 pcicmd = 0;
 331
 332         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
 333
 334         d->name = chipset_names[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
 335         d->bootable = (pcicmd & PCI_COMMAND_MEMORY) ? OFF_BOARD : NEVER_BOARD;
 336
 337         ide_setup_pci_device(dev, d);
 338         MOD_INC_USE_COUNT;
 339         return 0;
 340 }
 341
 342 static struct pci_device_id hpt34x_pci_tbl[] = {
 343         { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 344         { 0, },
 345 };
 346
 347 static struct pci_driver driver = {
 348         .name           = "HPT34x IDE",
 349         .id_table       = hpt34x_pci_tbl,
 350         .probe          = hpt34x_init_one,
 351 };
 352
 353 static int hpt34x_ide_init(void)
 354 {
 355         return ide_pci_register_driver(&driver);
 356 }
 357
 358 static void hpt34x_ide_exit(void)
 359 {
 360         ide_pci_unregister_driver(&driver);
 361 }
 362
 363 module_init(hpt34x_ide_init);
 364 module_exit(hpt34x_ide_exit);
 365
 366 MODULE_AUTHOR("Andre Hedrick");
 367 MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
 368 MODULE_LICENSE("GPL");