Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (C) 1996-2001 Linus Torvalds & author (see below) |
| 3 | */ |
| 4 | |
| 5 | /* |
| 6 | * Version 0.03 Cleaned auto-tune, added probe |
| 7 | * Version 0.04 Added second channel tuning |
| 8 | * Version 0.05 Enhanced tuning ; added qd6500 support |
| 9 | * Version 0.06 Added dos driver's list |
| 10 | * Version 0.07 Second channel bug fix |
| 11 | * |
| 12 | * QDI QD6500/QD6580 EIDE controller fast support |
| 13 | * |
| 14 | * Please set local bus speed using kernel parameter idebus |
| 15 | * for example, "idebus=33" stands for 33Mhz VLbus |
| 16 | * To activate controller support, use "ide0=qd65xx" |
Bartlomiej Zolnierkiewicz | b6209a9 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 17 | * To enable tuning, use "hda=autotune hdb=autotune" |
| 18 | * To enable 2nd channel tuning (qd6580 only), use "hdc=autotune hdd=autotune" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | */ |
| 20 | |
| 21 | /* |
| 22 | * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by |
| 23 | * Samuel Thibault <samuel.thibault@fnac.net> |
| 24 | */ |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <linux/types.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/timer.h> |
| 31 | #include <linux/mm.h> |
| 32 | #include <linux/ioport.h> |
| 33 | #include <linux/blkdev.h> |
| 34 | #include <linux/hdreg.h> |
| 35 | #include <linux/ide.h> |
| 36 | #include <linux/init.h> |
| 37 | #include <asm/system.h> |
| 38 | #include <asm/io.h> |
| 39 | |
| 40 | #include "qd65xx.h" |
| 41 | |
| 42 | /* |
| 43 | * I/O ports are 0x30-0x31 (and 0x32-0x33 for qd6580) |
| 44 | * or 0xb0-0xb1 (and 0xb2-0xb3 for qd6580) |
| 45 | * -- qd6500 is a single IDE interface |
| 46 | * -- qd6580 is a dual IDE interface |
| 47 | * |
| 48 | * More research on qd6580 being done by willmore@cig.mot.com (David) |
| 49 | * More Information given by Petr Soucek (petr@ryston.cz) |
| 50 | * http://www.ryston.cz/petr/vlb |
| 51 | */ |
| 52 | |
| 53 | /* |
| 54 | * base: Timer1 |
| 55 | * |
| 56 | * |
| 57 | * base+0x01: Config (R/O) |
| 58 | * |
| 59 | * bit 0: ide baseport: 1 = 0x1f0 ; 0 = 0x170 (only useful for qd6500) |
| 60 | * bit 1: qd65xx baseport: 1 = 0xb0 ; 0 = 0x30 |
| 61 | * bit 2: ID3: bus speed: 1 = <=33MHz ; 0 = >33MHz |
| 62 | * bit 3: qd6500: 1 = disabled, 0 = enabled |
| 63 | * qd6580: 1 |
| 64 | * upper nibble: |
| 65 | * qd6500: 1100 |
| 66 | * qd6580: either 1010 or 0101 |
| 67 | * |
| 68 | * |
| 69 | * base+0x02: Timer2 (qd6580 only) |
| 70 | * |
| 71 | * |
| 72 | * base+0x03: Control (qd6580 only) |
| 73 | * |
| 74 | * bits 0-3 must always be set 1 |
| 75 | * bit 4 must be set 1, but is set 0 by dos driver while measuring vlb clock |
| 76 | * bit 0 : 1 = Only primary port enabled : channel 0 for hda, channel 1 for hdb |
| 77 | * 0 = Primary and Secondary ports enabled : channel 0 for hda & hdb |
| 78 | * channel 1 for hdc & hdd |
| 79 | * bit 1 : 1 = only disks on primary port |
| 80 | * 0 = disks & ATAPI devices on primary port |
| 81 | * bit 2-4 : always 0 |
| 82 | * bit 5 : status, but of what ? |
| 83 | * bit 6 : always set 1 by dos driver |
| 84 | * bit 7 : set 1 for non-ATAPI devices on primary port |
| 85 | * (maybe read-ahead and post-write buffer ?) |
| 86 | */ |
| 87 | |
| 88 | static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */ |
| 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | /* |
| 91 | * qd_select: |
| 92 | * |
| 93 | * This routine is invoked from ide.c to prepare for access to a given drive. |
| 94 | */ |
| 95 | |
| 96 | static void qd_select (ide_drive_t *drive) |
| 97 | { |
| 98 | u8 index = (( (QD_TIMREG(drive)) & 0x80 ) >> 7) | |
| 99 | (QD_TIMREG(drive) & 0x02); |
| 100 | |
| 101 | if (timings[index] != QD_TIMING(drive)) |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 102 | outb(timings[index] = QD_TIMING(drive), QD_TIMREG(drive)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | /* |
| 106 | * qd6500_compute_timing |
| 107 | * |
| 108 | * computes the timing value where |
| 109 | * lower nibble represents active time, in count of VLB clocks |
| 110 | * upper nibble represents recovery time, in count of VLB clocks |
| 111 | */ |
| 112 | |
| 113 | static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) |
| 114 | { |
| 115 | u8 active_cycle,recovery_cycle; |
| 116 | |
| 117 | if (system_bus_clock()<=33) { |
| 118 | active_cycle = 9 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 9); |
| 119 | recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 0, 15); |
| 120 | } else { |
| 121 | active_cycle = 8 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 1, 8); |
| 122 | recovery_cycle = 18 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 3, 18); |
| 123 | } |
| 124 | |
| 125 | return((recovery_cycle<<4) | 0x08 | active_cycle); |
| 126 | } |
| 127 | |
| 128 | /* |
| 129 | * qd6580_compute_timing |
| 130 | * |
| 131 | * idem for qd6580 |
| 132 | */ |
| 133 | |
| 134 | static u8 qd6580_compute_timing (int active_time, int recovery_time) |
| 135 | { |
| 136 | u8 active_cycle = 17 - IDE_IN(active_time * system_bus_clock() / 1000 + 1, 2, 17); |
| 137 | u8 recovery_cycle = 15 - IDE_IN(recovery_time * system_bus_clock() / 1000 + 1, 2, 15); |
| 138 | |
| 139 | return((recovery_cycle<<4) | active_cycle); |
| 140 | } |
| 141 | |
| 142 | /* |
| 143 | * qd_find_disk_type |
| 144 | * |
| 145 | * tries to find timing from dos driver's table |
| 146 | */ |
| 147 | |
| 148 | static int qd_find_disk_type (ide_drive_t *drive, |
| 149 | int *active_time, int *recovery_time) |
| 150 | { |
| 151 | struct qd65xx_timing_s *p; |
| 152 | char model[40]; |
| 153 | |
| 154 | if (!*drive->id->model) return 0; |
| 155 | |
| 156 | strncpy(model,drive->id->model,40); |
| 157 | ide_fixstring(model,40,1); /* byte-swap */ |
| 158 | |
| 159 | for (p = qd65xx_timing ; p->offset != -1 ; p++) { |
| 160 | if (!strncmp(p->model, model+p->offset, 4)) { |
| 161 | printk(KERN_DEBUG "%s: listed !\n", drive->name); |
| 162 | *active_time = p->active; |
| 163 | *recovery_time = p->recovery; |
| 164 | return 1; |
| 165 | } |
| 166 | } |
| 167 | return 0; |
| 168 | } |
| 169 | |
| 170 | /* |
| 171 | * qd_timing_ok: |
| 172 | * |
| 173 | * check whether timings don't conflict |
| 174 | */ |
| 175 | |
| 176 | static int qd_timing_ok (ide_drive_t drives[]) |
| 177 | { |
| 178 | return (IDE_IMPLY(drives[0].present && drives[1].present, |
| 179 | IDE_IMPLY(QD_TIMREG(drives) == QD_TIMREG(drives+1), |
| 180 | QD_TIMING(drives) == QD_TIMING(drives+1)))); |
| 181 | /* if same timing register, must be same timing */ |
| 182 | } |
| 183 | |
| 184 | /* |
| 185 | * qd_set_timing: |
| 186 | * |
| 187 | * records the timing, and enables selectproc as needed |
| 188 | */ |
| 189 | |
| 190 | static void qd_set_timing (ide_drive_t *drive, u8 timing) |
| 191 | { |
| 192 | ide_hwif_t *hwif = HWIF(drive); |
| 193 | |
| 194 | drive->drive_data &= 0xff00; |
| 195 | drive->drive_data |= timing; |
| 196 | if (qd_timing_ok(hwif->drives)) { |
| 197 | qd_select(drive); /* selects once */ |
| 198 | hwif->selectproc = NULL; |
| 199 | } else |
| 200 | hwif->selectproc = &qd_select; |
| 201 | |
| 202 | printk(KERN_DEBUG "%s: %#x\n", drive->name, timing); |
| 203 | } |
| 204 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 205 | static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | { |
| 207 | int active_time = 175; |
| 208 | int recovery_time = 415; /* worst case values from the dos driver */ |
| 209 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 210 | /* |
| 211 | * FIXME: use "pio" value |
| 212 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time) |
| 214 | && drive->id->tPIO && (drive->id->field_valid & 0x02) |
| 215 | && drive->id->eide_pio >= 240) { |
| 216 | |
| 217 | printk(KERN_INFO "%s: PIO mode%d\n", drive->name, |
| 218 | drive->id->tPIO); |
| 219 | active_time = 110; |
| 220 | recovery_time = drive->id->eide_pio - 120; |
| 221 | } |
| 222 | |
| 223 | qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time)); |
| 224 | } |
| 225 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 226 | static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | int base = HWIF(drive)->select_data; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 229 | unsigned int cycle_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | int active_time = 175; |
| 231 | int recovery_time = 415; /* worst case values from the dos driver */ |
| 232 | |
| 233 | if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) { |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 234 | cycle_time = ide_pio_cycle_time(drive, pio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
| 236 | switch (pio) { |
| 237 | case 0: break; |
| 238 | case 3: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 239 | if (cycle_time >= 110) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | active_time = 86; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 241 | recovery_time = cycle_time - 102; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | } else |
| 243 | printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); |
| 244 | break; |
| 245 | case 4: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 246 | if (cycle_time >= 69) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | active_time = 70; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 248 | recovery_time = cycle_time - 61; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } else |
| 250 | printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); |
| 251 | break; |
| 252 | default: |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 253 | if (cycle_time >= 180) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | active_time = 110; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 255 | recovery_time = cycle_time - 120; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | } else { |
| 257 | active_time = ide_pio_timings[pio].active_time; |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 258 | recovery_time = cycle_time - active_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | } |
| 261 | printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio); |
| 262 | } |
| 263 | |
| 264 | if (!HWIF(drive)->channel && drive->media != ide_disk) { |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 265 | outb(0x5f, QD_CONTROL_PORT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO " |
| 267 | "and post-write buffer on %s.\n", |
| 268 | drive->name, HWIF(drive)->name); |
| 269 | } |
| 270 | |
| 271 | qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time)); |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | * qd_testreg |
| 276 | * |
| 277 | * tests if the given port is a register |
| 278 | */ |
| 279 | |
| 280 | static int __init qd_testreg(int port) |
| 281 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | unsigned long flags; |
Bartlomiej Zolnierkiewicz | f949820 | 2007-10-20 00:32:35 +0200 | [diff] [blame] | 283 | u8 savereg, readreg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 285 | local_irq_save(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | savereg = inb_p(port); |
| 287 | outb_p(QD_TESTVAL, port); /* safe value */ |
| 288 | readreg = inb_p(port); |
| 289 | outb(savereg, port); |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 290 | local_irq_restore(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | if (savereg == QD_TESTVAL) { |
| 293 | printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n"); |
| 294 | printk(KERN_ERR "Please contact maintainers to tell about your hardware\n"); |
| 295 | printk(KERN_ERR "Assuming qd65xx is not present.\n"); |
| 296 | return 1; |
| 297 | } |
| 298 | |
| 299 | return (readreg != QD_TESTVAL); |
| 300 | } |
| 301 | |
| 302 | /* |
| 303 | * qd_setup: |
| 304 | * |
| 305 | * called to setup an ata channel : adjusts attributes & links for tuning |
| 306 | */ |
| 307 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 308 | static void __init qd_setup(ide_hwif_t *hwif, int base, int config) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | hwif->select_data = base; |
| 311 | hwif->config_data = config; |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | static void __init qd6500_port_init_devs(ide_hwif_t *hwif) |
| 315 | { |
| 316 | u8 base = hwif->select_data, config = QD_CONFIG(hwif); |
| 317 | |
| 318 | hwif->drives[0].drive_data = QD6500_DEF_DATA; |
| 319 | hwif->drives[1].drive_data = QD6500_DEF_DATA; |
| 320 | } |
| 321 | |
| 322 | static void __init qd6580_port_init_devs(ide_hwif_t *hwif) |
| 323 | { |
| 324 | u16 t1, t2; |
| 325 | u8 base = hwif->select_data, config = QD_CONFIG(hwif); |
| 326 | |
| 327 | if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) { |
| 328 | t1 = QD6580_DEF_DATA; |
| 329 | t2 = QD6580_DEF_DATA2; |
| 330 | } else |
| 331 | t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA; |
| 332 | |
| 333 | hwif->drives[0].drive_data = t1; |
| 334 | hwif->drives[1].drive_data = t2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | /* |
| 338 | * qd_unsetup: |
| 339 | * |
| 340 | * called to unsetup an ata channel : back to default values, unlinks tuning |
| 341 | */ |
| 342 | /* |
| 343 | static void __exit qd_unsetup(ide_hwif_t *hwif) |
| 344 | { |
| 345 | u8 config = hwif->config_data; |
| 346 | int base = hwif->select_data; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 347 | void *set_pio_mode = (void *)hwif->set_pio_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | |
| 349 | if (hwif->chipset != ide_qd65xx) |
| 350 | return; |
| 351 | |
| 352 | printk(KERN_NOTICE "%s: back to defaults\n", hwif->name); |
| 353 | |
| 354 | hwif->selectproc = NULL; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 355 | hwif->set_pio_mode = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 357 | if (set_pio_mode == (void *)qd6500_set_pio_mode) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | // will do it for both |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 359 | outb(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 360 | } else if (set_pio_mode == (void *)qd6580_set_pio_mode) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) { |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 362 | outb(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
| 363 | outb(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | } else { |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 365 | outb(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | } else { |
| 368 | printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n"); |
| 369 | printk(KERN_WARNING "keeping settings !\n"); |
| 370 | } |
| 371 | } |
| 372 | */ |
| 373 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 374 | static const struct ide_port_info qd65xx_port_info __initdata = { |
| 375 | .chipset = ide_qd65xx, |
| 376 | .host_flags = IDE_HFLAG_IO_32BIT | |
| 377 | IDE_HFLAG_NO_DMA | |
| 378 | IDE_HFLAG_NO_AUTOTUNE, |
| 379 | .pio_mask = ATA_PIO4, |
| 380 | }; |
| 381 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | /* |
| 383 | * qd_probe: |
| 384 | * |
| 385 | * looks at the specified baseport, and if qd found, registers & initialises it |
| 386 | * return 1 if another qd may be probed |
| 387 | */ |
| 388 | |
| 389 | static int __init qd_probe(int base) |
| 390 | { |
| 391 | ide_hwif_t *hwif; |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 392 | u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | u8 config; |
| 394 | u8 unit; |
| 395 | |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 396 | config = inb(QD_CONFIG_PORT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
| 398 | if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) ) |
| 399 | return 1; |
| 400 | |
| 401 | unit = ! (config & QD_CONFIG_IDE_BASEPORT); |
| 402 | |
| 403 | if ((config & 0xf0) == QD_CONFIG_QD6500) { |
| 404 | |
| 405 | if (qd_testreg(base)) return 1; /* bad register */ |
| 406 | |
| 407 | /* qd6500 found */ |
| 408 | |
| 409 | hwif = &ide_hwifs[unit]; |
| 410 | printk(KERN_NOTICE "%s: qd6500 at %#x\n", hwif->name, base); |
| 411 | printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n", |
| 412 | config, QD_ID3); |
| 413 | |
| 414 | if (config & QD_CONFIG_DISABLED) { |
| 415 | printk(KERN_WARNING "qd6500 is disabled !\n"); |
| 416 | return 1; |
| 417 | } |
| 418 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 419 | qd_setup(hwif, base, config); |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 420 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 421 | hwif->port_init_devs = qd6500_port_init_devs; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 422 | hwif->set_pio_mode = &qd6500_set_pio_mode; |
| 423 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 424 | idx[unit] = unit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 426 | ide_device_add(idx, &qd65xx_port_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | |
| 428 | return 1; |
| 429 | } |
| 430 | |
| 431 | if (((config & 0xf0) == QD_CONFIG_QD6580_A) || |
| 432 | ((config & 0xf0) == QD_CONFIG_QD6580_B)) { |
| 433 | |
| 434 | u8 control; |
| 435 | |
| 436 | if (qd_testreg(base) || qd_testreg(base+0x02)) return 1; |
| 437 | /* bad registers */ |
| 438 | |
| 439 | /* qd6580 found */ |
| 440 | |
Bartlomiej Zolnierkiewicz | c196567 | 2007-10-20 00:32:37 +0200 | [diff] [blame] | 441 | control = inb(QD_CONTROL_PORT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
| 443 | printk(KERN_NOTICE "qd6580 at %#x\n", base); |
| 444 | printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n", |
| 445 | config, control, QD_ID3); |
| 446 | |
Bartlomiej Zolnierkiewicz | 788d669 | 2008-02-26 21:50:35 +0100 | [diff] [blame] | 447 | outb(QD_DEF_CONTR, QD_CONTROL_PORT); |
| 448 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | if (control & QD_CONTR_SEC_DISABLED) { |
| 450 | /* secondary disabled */ |
| 451 | |
| 452 | hwif = &ide_hwifs[unit]; |
| 453 | printk(KERN_INFO "%s: qd6580: single IDE board\n", |
| 454 | hwif->name); |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 455 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 456 | qd_setup(hwif, base, config | (control << 8)); |
| 457 | |
| 458 | hwif->port_init_devs = qd6580_port_init_devs; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 459 | hwif->set_pio_mode = &qd6580_set_pio_mode; |
| 460 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 461 | idx[unit] = unit; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 462 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 463 | ide_device_add(idx, &qd65xx_port_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | return 1; |
| 466 | } else { |
| 467 | ide_hwif_t *mate; |
| 468 | |
| 469 | hwif = &ide_hwifs[0]; |
| 470 | mate = &ide_hwifs[1]; |
| 471 | /* secondary enabled */ |
| 472 | printk(KERN_INFO "%s&%s: qd6580: dual IDE board\n", |
| 473 | hwif->name, mate->name); |
| 474 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 475 | qd_setup(hwif, base, config | (control << 8)); |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 476 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 477 | hwif->port_init_devs = qd6580_port_init_devs; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 478 | hwif->set_pio_mode = &qd6580_set_pio_mode; |
| 479 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 480 | qd_setup(mate, base, config | (control << 8)); |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 481 | |
Bartlomiej Zolnierkiewicz | 1f2cf8b | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 482 | mate->port_init_devs = qd6580_port_init_devs; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 483 | mate->set_pio_mode = &qd6580_set_pio_mode; |
| 484 | |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 485 | idx[0] = 0; |
| 486 | idx[1] = 1; |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 487 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 488 | ide_device_add(idx, &qd65xx_port_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | return 0; /* no other qd65xx possible */ |
| 491 | } |
| 492 | } |
| 493 | /* no qd65xx found */ |
| 494 | return 1; |
| 495 | } |
| 496 | |
Bartlomiej Zolnierkiewicz | 8491388 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 497 | int probe_qd65xx = 0; |
| 498 | |
| 499 | module_param_named(probe, probe_qd65xx, bool, 0); |
| 500 | MODULE_PARM_DESC(probe, "probe for QD65xx chipsets"); |
| 501 | |
Bartlomiej Zolnierkiewicz | ade2daf | 2008-01-26 20:13:07 +0100 | [diff] [blame] | 502 | static int __init qd65xx_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | { |
Bartlomiej Zolnierkiewicz | 8491388 | 2007-03-03 17:48:55 +0100 | [diff] [blame] | 504 | if (probe_qd65xx == 0) |
| 505 | return -ENODEV; |
| 506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | if (qd_probe(0x30)) |
| 508 | qd_probe(0xb0); |
| 509 | if (ide_hwifs[0].chipset != ide_qd65xx && |
| 510 | ide_hwifs[1].chipset != ide_qd65xx) |
| 511 | return -ENODEV; |
| 512 | return 0; |
| 513 | } |
| 514 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | module_init(qd65xx_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
| 517 | MODULE_AUTHOR("Samuel Thibault"); |
| 518 | MODULE_DESCRIPTION("support of qd65xx vlb ide chipset"); |
| 519 | MODULE_LICENSE("GPL"); |