Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/ide/legacy/qd65xx.c Version 0.07 Sep 30, 2001 |
| 3 | * |
| 4 | * Copyright (C) 1996-2001 Linus Torvalds & author (see below) |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * Version 0.03 Cleaned auto-tune, added probe |
| 9 | * Version 0.04 Added second channel tuning |
| 10 | * Version 0.05 Enhanced tuning ; added qd6500 support |
| 11 | * Version 0.06 Added dos driver's list |
| 12 | * Version 0.07 Second channel bug fix |
| 13 | * |
| 14 | * QDI QD6500/QD6580 EIDE controller fast support |
| 15 | * |
| 16 | * Please set local bus speed using kernel parameter idebus |
| 17 | * for example, "idebus=33" stands for 33Mhz VLbus |
| 18 | * To activate controller support, use "ide0=qd65xx" |
Bartlomiej Zolnierkiewicz | b6209a9 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 19 | * To enable tuning, use "hda=autotune hdb=autotune" |
| 20 | * To enable 2nd channel tuning (qd6580 only), use "hdc=autotune hdd=autotune" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | */ |
| 22 | |
| 23 | /* |
| 24 | * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by |
| 25 | * Samuel Thibault <samuel.thibault@fnac.net> |
| 26 | */ |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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/ide.h> |
| 38 | #include <linux/init.h> |
| 39 | #include <asm/system.h> |
| 40 | #include <asm/io.h> |
| 41 | |
| 42 | #include "qd65xx.h" |
| 43 | |
| 44 | /* |
| 45 | * I/O ports are 0x30-0x31 (and 0x32-0x33 for qd6580) |
| 46 | * or 0xb0-0xb1 (and 0xb2-0xb3 for qd6580) |
| 47 | * -- qd6500 is a single IDE interface |
| 48 | * -- qd6580 is a dual IDE interface |
| 49 | * |
| 50 | * More research on qd6580 being done by willmore@cig.mot.com (David) |
| 51 | * More Information given by Petr Soucek (petr@ryston.cz) |
| 52 | * http://www.ryston.cz/petr/vlb |
| 53 | */ |
| 54 | |
| 55 | /* |
| 56 | * base: Timer1 |
| 57 | * |
| 58 | * |
| 59 | * base+0x01: Config (R/O) |
| 60 | * |
| 61 | * bit 0: ide baseport: 1 = 0x1f0 ; 0 = 0x170 (only useful for qd6500) |
| 62 | * bit 1: qd65xx baseport: 1 = 0xb0 ; 0 = 0x30 |
| 63 | * bit 2: ID3: bus speed: 1 = <=33MHz ; 0 = >33MHz |
| 64 | * bit 3: qd6500: 1 = disabled, 0 = enabled |
| 65 | * qd6580: 1 |
| 66 | * upper nibble: |
| 67 | * qd6500: 1100 |
| 68 | * qd6580: either 1010 or 0101 |
| 69 | * |
| 70 | * |
| 71 | * base+0x02: Timer2 (qd6580 only) |
| 72 | * |
| 73 | * |
| 74 | * base+0x03: Control (qd6580 only) |
| 75 | * |
| 76 | * bits 0-3 must always be set 1 |
| 77 | * bit 4 must be set 1, but is set 0 by dos driver while measuring vlb clock |
| 78 | * bit 0 : 1 = Only primary port enabled : channel 0 for hda, channel 1 for hdb |
| 79 | * 0 = Primary and Secondary ports enabled : channel 0 for hda & hdb |
| 80 | * channel 1 for hdc & hdd |
| 81 | * bit 1 : 1 = only disks on primary port |
| 82 | * 0 = disks & ATAPI devices on primary port |
| 83 | * bit 2-4 : always 0 |
| 84 | * bit 5 : status, but of what ? |
| 85 | * bit 6 : always set 1 by dos driver |
| 86 | * bit 7 : set 1 for non-ATAPI devices on primary port |
| 87 | * (maybe read-ahead and post-write buffer ?) |
| 88 | */ |
| 89 | |
| 90 | static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */ |
| 91 | |
| 92 | static void qd_write_reg (u8 content, unsigned long reg) |
| 93 | { |
| 94 | unsigned long flags; |
| 95 | |
| 96 | spin_lock_irqsave(&ide_lock, flags); |
| 97 | outb(content,reg); |
| 98 | spin_unlock_irqrestore(&ide_lock, flags); |
| 99 | } |
| 100 | |
| 101 | static u8 __init qd_read_reg (unsigned long reg) |
| 102 | { |
| 103 | unsigned long flags; |
| 104 | u8 read; |
| 105 | |
| 106 | spin_lock_irqsave(&ide_lock, flags); |
| 107 | read = inb(reg); |
| 108 | spin_unlock_irqrestore(&ide_lock, flags); |
| 109 | return read; |
| 110 | } |
| 111 | |
| 112 | /* |
| 113 | * qd_select: |
| 114 | * |
| 115 | * This routine is invoked from ide.c to prepare for access to a given drive. |
| 116 | */ |
| 117 | |
| 118 | static void qd_select (ide_drive_t *drive) |
| 119 | { |
| 120 | u8 index = (( (QD_TIMREG(drive)) & 0x80 ) >> 7) | |
| 121 | (QD_TIMREG(drive) & 0x02); |
| 122 | |
| 123 | if (timings[index] != QD_TIMING(drive)) |
| 124 | qd_write_reg(timings[index] = QD_TIMING(drive), QD_TIMREG(drive)); |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * qd6500_compute_timing |
| 129 | * |
| 130 | * computes the timing value where |
| 131 | * lower nibble represents active time, in count of VLB clocks |
| 132 | * upper nibble represents recovery time, in count of VLB clocks |
| 133 | */ |
| 134 | |
| 135 | static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) |
| 136 | { |
| 137 | u8 active_cycle,recovery_cycle; |
| 138 | |
| 139 | if (system_bus_clock()<=33) { |
| 140 | active_cycle = 9 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 9); |
| 141 | recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 0, 15); |
| 142 | } else { |
| 143 | active_cycle = 8 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 1, 8); |
| 144 | recovery_cycle = 18 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 3, 18); |
| 145 | } |
| 146 | |
| 147 | return((recovery_cycle<<4) | 0x08 | active_cycle); |
| 148 | } |
| 149 | |
| 150 | /* |
| 151 | * qd6580_compute_timing |
| 152 | * |
| 153 | * idem for qd6580 |
| 154 | */ |
| 155 | |
| 156 | static u8 qd6580_compute_timing (int active_time, int recovery_time) |
| 157 | { |
| 158 | u8 active_cycle = 17 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 17); |
| 159 | u8 recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 2, 15); |
| 160 | |
| 161 | return((recovery_cycle<<4) | active_cycle); |
| 162 | } |
| 163 | |
| 164 | /* |
| 165 | * qd_find_disk_type |
| 166 | * |
| 167 | * tries to find timing from dos driver's table |
| 168 | */ |
| 169 | |
| 170 | static int qd_find_disk_type (ide_drive_t *drive, |
| 171 | int *active_time, int *recovery_time) |
| 172 | { |
| 173 | struct qd65xx_timing_s *p; |
| 174 | char model[40]; |
| 175 | |
| 176 | if (!*drive->id->model) return 0; |
| 177 | |
| 178 | strncpy(model,drive->id->model,40); |
| 179 | ide_fixstring(model,40,1); /* byte-swap */ |
| 180 | |
| 181 | for (p = qd65xx_timing ; p->offset != -1 ; p++) { |
| 182 | if (!strncmp(p->model, model+p->offset, 4)) { |
| 183 | printk(KERN_DEBUG "%s: listed !\n", drive->name); |
| 184 | *active_time = p->active; |
| 185 | *recovery_time = p->recovery; |
| 186 | return 1; |
| 187 | } |
| 188 | } |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | * qd_timing_ok: |
| 194 | * |
| 195 | * check whether timings don't conflict |
| 196 | */ |
| 197 | |
| 198 | static int qd_timing_ok (ide_drive_t drives[]) |
| 199 | { |
| 200 | return (IDE_IMPLY(drives[0].present && drives[1].present, |
| 201 | IDE_IMPLY(QD_TIMREG(drives) == QD_TIMREG(drives+1), |
| 202 | QD_TIMING(drives) == QD_TIMING(drives+1)))); |
| 203 | /* if same timing register, must be same timing */ |
| 204 | } |
| 205 | |
| 206 | /* |
| 207 | * qd_set_timing: |
| 208 | * |
| 209 | * records the timing, and enables selectproc as needed |
| 210 | */ |
| 211 | |
| 212 | static void qd_set_timing (ide_drive_t *drive, u8 timing) |
| 213 | { |
| 214 | ide_hwif_t *hwif = HWIF(drive); |
| 215 | |
| 216 | drive->drive_data &= 0xff00; |
| 217 | drive->drive_data |= timing; |
| 218 | if (qd_timing_ok(hwif->drives)) { |
| 219 | qd_select(drive); /* selects once */ |
| 220 | hwif->selectproc = NULL; |
| 221 | } else |
| 222 | hwif->selectproc = &qd_select; |
| 223 | |
| 224 | printk(KERN_DEBUG "%s: %#x\n", drive->name, timing); |
| 225 | } |
| 226 | |
| 227 | /* |
| 228 | * qd6500_tune_drive |
| 229 | */ |
| 230 | |
| 231 | static void qd6500_tune_drive (ide_drive_t *drive, u8 pio) |
| 232 | { |
| 233 | int active_time = 175; |
| 234 | int recovery_time = 415; /* worst case values from the dos driver */ |
| 235 | |
| 236 | if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time) |
| 237 | && drive->id->tPIO && (drive->id->field_valid & 0x02) |
| 238 | && drive->id->eide_pio >= 240) { |
| 239 | |
| 240 | printk(KERN_INFO "%s: PIO mode%d\n", drive->name, |
| 241 | drive->id->tPIO); |
| 242 | active_time = 110; |
| 243 | recovery_time = drive->id->eide_pio - 120; |
| 244 | } |
| 245 | |
| 246 | qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time)); |
| 247 | } |
| 248 | |
| 249 | /* |
| 250 | * qd6580_tune_drive |
| 251 | */ |
| 252 | |
| 253 | static void qd6580_tune_drive (ide_drive_t *drive, u8 pio) |
| 254 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | int base = HWIF(drive)->select_data; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 256 | unsigned int cycle_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | int active_time = 175; |
| 258 | int recovery_time = 415; /* worst case values from the dos driver */ |
| 259 | |
| 260 | if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) { |
Bartlomiej Zolnierkiewicz | 2134758 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 261 | pio = ide_get_best_pio_mode(drive, pio, 4); |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 262 | cycle_time = ide_pio_cycle_time(drive, pio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
| 264 | switch (pio) { |
| 265 | case 0: break; |
| 266 | case 3: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 267 | if (cycle_time >= 110) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | active_time = 86; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 269 | recovery_time = cycle_time - 102; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } else |
| 271 | printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); |
| 272 | break; |
| 273 | case 4: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 274 | if (cycle_time >= 69) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | active_time = 70; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 276 | recovery_time = cycle_time - 61; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | } else |
| 278 | printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); |
| 279 | break; |
| 280 | default: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 281 | if (cycle_time >= 180) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | active_time = 110; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 283 | recovery_time = cycle_time - 120; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | } else { |
| 285 | active_time = ide_pio_timings[pio].active_time; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 286 | recovery_time = cycle_time - active_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | } |
| 288 | } |
| 289 | printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio); |
| 290 | } |
| 291 | |
| 292 | if (!HWIF(drive)->channel && drive->media != ide_disk) { |
| 293 | qd_write_reg(0x5f, QD_CONTROL_PORT); |
| 294 | printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO " |
| 295 | "and post-write buffer on %s.\n", |
| 296 | drive->name, HWIF(drive)->name); |
| 297 | } |
| 298 | |
| 299 | qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time)); |
| 300 | } |
| 301 | |
| 302 | /* |
| 303 | * qd_testreg |
| 304 | * |
| 305 | * tests if the given port is a register |
| 306 | */ |
| 307 | |
| 308 | static int __init qd_testreg(int port) |
| 309 | { |
| 310 | u8 savereg; |
| 311 | u8 readreg; |
| 312 | unsigned long flags; |
| 313 | |
| 314 | spin_lock_irqsave(&ide_lock, flags); |
| 315 | savereg = inb_p(port); |
| 316 | outb_p(QD_TESTVAL, port); /* safe value */ |
| 317 | readreg = inb_p(port); |
| 318 | outb(savereg, port); |
| 319 | spin_unlock_irqrestore(&ide_lock, flags); |
| 320 | |
| 321 | if (savereg == QD_TESTVAL) { |
| 322 | printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n"); |
| 323 | printk(KERN_ERR "Please contact maintainers to tell about your hardware\n"); |
| 324 | printk(KERN_ERR "Assuming qd65xx is not present.\n"); |
| 325 | return 1; |
| 326 | } |
| 327 | |
| 328 | return (readreg != QD_TESTVAL); |
| 329 | } |
| 330 | |
| 331 | /* |
| 332 | * qd_setup: |
| 333 | * |
| 334 | * called to setup an ata channel : adjusts attributes & links for tuning |
| 335 | */ |
| 336 | |
| 337 | static void __init qd_setup(ide_hwif_t *hwif, int base, int config, |
| 338 | unsigned int data0, unsigned int data1, |
| 339 | void (*tuneproc) (ide_drive_t *, u8 pio)) |
| 340 | { |
| 341 | hwif->chipset = ide_qd65xx; |
| 342 | hwif->channel = hwif->index; |
| 343 | hwif->select_data = base; |
| 344 | hwif->config_data = config; |
| 345 | hwif->drives[0].drive_data = data0; |
| 346 | hwif->drives[1].drive_data = data1; |
| 347 | hwif->drives[0].io_32bit = |
| 348 | hwif->drives[1].io_32bit = 1; |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 349 | hwif->pio_mask = ATA_PIO4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | hwif->tuneproc = tuneproc; |
| 351 | probe_hwif_init(hwif); |
| 352 | } |
| 353 | |
| 354 | /* |
| 355 | * qd_unsetup: |
| 356 | * |
| 357 | * called to unsetup an ata channel : back to default values, unlinks tuning |
| 358 | */ |
| 359 | /* |
| 360 | static void __exit qd_unsetup(ide_hwif_t *hwif) |
| 361 | { |
| 362 | u8 config = hwif->config_data; |
| 363 | int base = hwif->select_data; |
| 364 | void *tuneproc = (void *) hwif->tuneproc; |
| 365 | |
| 366 | if (hwif->chipset != ide_qd65xx) |
| 367 | return; |
| 368 | |
| 369 | printk(KERN_NOTICE "%s: back to defaults\n", hwif->name); |
| 370 | |
| 371 | hwif->selectproc = NULL; |
| 372 | hwif->tuneproc = NULL; |
| 373 | |
| 374 | if (tuneproc == (void *) qd6500_tune_drive) { |
| 375 | // will do it for both |
| 376 | qd_write_reg(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
| 377 | } else if (tuneproc == (void *) qd6580_tune_drive) { |
| 378 | if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) { |
| 379 | qd_write_reg(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
| 380 | qd_write_reg(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1])); |
| 381 | } else { |
| 382 | qd_write_reg(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
| 383 | } |
| 384 | } else { |
| 385 | printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n"); |
| 386 | printk(KERN_WARNING "keeping settings !\n"); |
| 387 | } |
| 388 | } |
| 389 | */ |
| 390 | |
| 391 | /* |
| 392 | * qd_probe: |
| 393 | * |
| 394 | * looks at the specified baseport, and if qd found, registers & initialises it |
| 395 | * return 1 if another qd may be probed |
| 396 | */ |
| 397 | |
| 398 | static int __init qd_probe(int base) |
| 399 | { |
| 400 | ide_hwif_t *hwif; |
| 401 | u8 config; |
| 402 | u8 unit; |
| 403 | |
| 404 | config = qd_read_reg(QD_CONFIG_PORT); |
| 405 | |
| 406 | if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) ) |
| 407 | return 1; |
| 408 | |
| 409 | unit = ! (config & QD_CONFIG_IDE_BASEPORT); |
| 410 | |
| 411 | if ((config & 0xf0) == QD_CONFIG_QD6500) { |
| 412 | |
| 413 | if (qd_testreg(base)) return 1; /* bad register */ |
| 414 | |
| 415 | /* qd6500 found */ |
| 416 | |
| 417 | hwif = &ide_hwifs[unit]; |
| 418 | printk(KERN_NOTICE "%s: qd6500 at %#x\n", hwif->name, base); |
| 419 | printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n", |
| 420 | config, QD_ID3); |
| 421 | |
| 422 | if (config & QD_CONFIG_DISABLED) { |
| 423 | printk(KERN_WARNING "qd6500 is disabled !\n"); |
| 424 | return 1; |
| 425 | } |
| 426 | |
| 427 | qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA, |
| 428 | &qd6500_tune_drive); |
| 429 | |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 430 | ide_proc_register_port(hwif); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | |
| 432 | return 1; |
| 433 | } |
| 434 | |
| 435 | if (((config & 0xf0) == QD_CONFIG_QD6580_A) || |
| 436 | ((config & 0xf0) == QD_CONFIG_QD6580_B)) { |
| 437 | |
| 438 | u8 control; |
| 439 | |
| 440 | if (qd_testreg(base) || qd_testreg(base+0x02)) return 1; |
| 441 | /* bad registers */ |
| 442 | |
| 443 | /* qd6580 found */ |
| 444 | |
| 445 | control = qd_read_reg(QD_CONTROL_PORT); |
| 446 | |
| 447 | printk(KERN_NOTICE "qd6580 at %#x\n", base); |
| 448 | printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n", |
| 449 | config, control, QD_ID3); |
| 450 | |
| 451 | if (control & QD_CONTR_SEC_DISABLED) { |
| 452 | /* secondary disabled */ |
| 453 | |
| 454 | hwif = &ide_hwifs[unit]; |
| 455 | printk(KERN_INFO "%s: qd6580: single IDE board\n", |
| 456 | hwif->name); |
| 457 | qd_setup(hwif, base, config | (control << 8), |
| 458 | QD6580_DEF_DATA, QD6580_DEF_DATA2, |
| 459 | &qd6580_tune_drive); |
| 460 | qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT); |
| 461 | |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 462 | ide_proc_register_port(hwif); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | |
| 464 | return 1; |
| 465 | } else { |
| 466 | ide_hwif_t *mate; |
| 467 | |
| 468 | hwif = &ide_hwifs[0]; |
| 469 | mate = &ide_hwifs[1]; |
| 470 | /* secondary enabled */ |
| 471 | printk(KERN_INFO "%s&%s: qd6580: dual IDE board\n", |
| 472 | hwif->name, mate->name); |
| 473 | |
| 474 | qd_setup(hwif, base, config | (control << 8), |
| 475 | QD6580_DEF_DATA, QD6580_DEF_DATA, |
| 476 | &qd6580_tune_drive); |
| 477 | qd_setup(mate, base, config | (control << 8), |
| 478 | QD6580_DEF_DATA2, QD6580_DEF_DATA2, |
| 479 | &qd6580_tune_drive); |
| 480 | qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT); |
| 481 | |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 482 | ide_proc_register_port(hwif); |
| 483 | ide_proc_register_port(mate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | |
| 485 | return 0; /* no other qd65xx possible */ |
| 486 | } |
| 487 | } |
| 488 | /* no qd65xx found */ |
| 489 | return 1; |
| 490 | } |
| 491 | |
Bartlomiej Zolnierkiewicz | 8491388 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 492 | int probe_qd65xx = 0; |
| 493 | |
| 494 | module_param_named(probe, probe_qd65xx, bool, 0); |
| 495 | MODULE_PARM_DESC(probe, "probe for QD65xx chipsets"); |
| 496 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | /* Can be called directly from ide.c. */ |
| 498 | int __init qd65xx_init(void) |
| 499 | { |
Bartlomiej Zolnierkiewicz | 8491388 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 500 | if (probe_qd65xx == 0) |
| 501 | return -ENODEV; |
| 502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | if (qd_probe(0x30)) |
| 504 | qd_probe(0xb0); |
| 505 | if (ide_hwifs[0].chipset != ide_qd65xx && |
| 506 | ide_hwifs[1].chipset != ide_qd65xx) |
| 507 | return -ENODEV; |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | #ifdef MODULE |
| 512 | module_init(qd65xx_init); |
| 513 | #endif |
| 514 | |
| 515 | MODULE_AUTHOR("Samuel Thibault"); |
| 516 | MODULE_DESCRIPTION("support of qd65xx vlb ide chipset"); |
| 517 | MODULE_LICENSE("GPL"); |