diff options
Diffstat (limited to 'drivers/ide/pci/via82cxxx.c')
-rw-r--r-- | drivers/ide/pci/via82cxxx.c | 139 |
1 files changed, 77 insertions, 62 deletions
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 09dc4803ef9d..454d2bf62dce 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c | |||
@@ -35,6 +35,8 @@ | |||
35 | #include <asm/processor.h> | 35 | #include <asm/processor.h> |
36 | #endif | 36 | #endif |
37 | 37 | ||
38 | #define DRV_NAME "via82cxxx" | ||
39 | |||
38 | #define VIA_IDE_ENABLE 0x40 | 40 | #define VIA_IDE_ENABLE 0x40 |
39 | #define VIA_IDE_CONFIG 0x41 | 41 | #define VIA_IDE_CONFIG 0x41 |
40 | #define VIA_FIFO_CONFIG 0x43 | 42 | #define VIA_FIFO_CONFIG 0x43 |
@@ -113,7 +115,8 @@ struct via82cxxx_dev | |||
113 | static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) | 115 | static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) |
114 | { | 116 | { |
115 | struct pci_dev *dev = to_pci_dev(hwif->dev); | 117 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
116 | struct via82cxxx_dev *vdev = pci_get_drvdata(dev); | 118 | struct ide_host *host = pci_get_drvdata(dev); |
119 | struct via82cxxx_dev *vdev = host->host_priv; | ||
117 | u8 t; | 120 | u8 t; |
118 | 121 | ||
119 | if (~vdev->via_config->flags & VIA_BAD_AST) { | 122 | if (~vdev->via_config->flags & VIA_BAD_AST) { |
@@ -153,7 +156,8 @@ static void via_set_drive(ide_drive_t *drive, const u8 speed) | |||
153 | ide_hwif_t *hwif = drive->hwif; | 156 | ide_hwif_t *hwif = drive->hwif; |
154 | ide_drive_t *peer = hwif->drives + (~drive->dn & 1); | 157 | ide_drive_t *peer = hwif->drives + (~drive->dn & 1); |
155 | struct pci_dev *dev = to_pci_dev(hwif->dev); | 158 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
156 | struct via82cxxx_dev *vdev = pci_get_drvdata(dev); | 159 | struct ide_host *host = pci_get_drvdata(dev); |
160 | struct via82cxxx_dev *vdev = host->host_priv; | ||
157 | struct ide_timing t, p; | 161 | struct ide_timing t, p; |
158 | unsigned int T, UT; | 162 | unsigned int T, UT; |
159 | 163 | ||
@@ -258,37 +262,19 @@ static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u) | |||
258 | /** | 262 | /** |
259 | * init_chipset_via82cxxx - initialization handler | 263 | * init_chipset_via82cxxx - initialization handler |
260 | * @dev: PCI device | 264 | * @dev: PCI device |
261 | * @name: Name of interface | ||
262 | * | 265 | * |
263 | * The initialization callback. Here we determine the IDE chip type | 266 | * The initialization callback. Here we determine the IDE chip type |
264 | * and initialize its drive independent registers. | 267 | * and initialize its drive independent registers. |
265 | */ | 268 | */ |
266 | 269 | ||
267 | static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const char *name) | 270 | static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev) |
268 | { | 271 | { |
269 | struct pci_dev *isa = NULL; | 272 | struct ide_host *host = pci_get_drvdata(dev); |
270 | struct via82cxxx_dev *vdev; | 273 | struct via82cxxx_dev *vdev = host->host_priv; |
271 | struct via_isa_bridge *via_config; | 274 | struct via_isa_bridge *via_config = vdev->via_config; |
272 | u8 t, v; | 275 | u8 t, v; |
273 | u32 u; | 276 | u32 u; |
274 | 277 | ||
275 | vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); | ||
276 | if (!vdev) { | ||
277 | printk(KERN_ERR "VP_IDE: out of memory :(\n"); | ||
278 | return -ENOMEM; | ||
279 | } | ||
280 | pci_set_drvdata(dev, vdev); | ||
281 | |||
282 | /* | ||
283 | * Find the ISA bridge to see how good the IDE is. | ||
284 | */ | ||
285 | vdev->via_config = via_config = via_config_find(&isa); | ||
286 | |||
287 | /* We checked this earlier so if it fails here deeep badness | ||
288 | is involved */ | ||
289 | |||
290 | BUG_ON(!via_config->id); | ||
291 | |||
292 | /* | 278 | /* |
293 | * Detect cable and configure Clk66 | 279 | * Detect cable and configure Clk66 |
294 | */ | 280 | */ |
@@ -334,39 +320,6 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const | |||
334 | 320 | ||
335 | pci_write_config_byte(dev, VIA_FIFO_CONFIG, t); | 321 | pci_write_config_byte(dev, VIA_FIFO_CONFIG, t); |
336 | 322 | ||
337 | /* | ||
338 | * Determine system bus clock. | ||
339 | */ | ||
340 | |||
341 | via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; | ||
342 | |||
343 | switch (via_clock) { | ||
344 | case 33000: via_clock = 33333; break; | ||
345 | case 37000: via_clock = 37500; break; | ||
346 | case 41000: via_clock = 41666; break; | ||
347 | } | ||
348 | |||
349 | if (via_clock < 20000 || via_clock > 50000) { | ||
350 | printk(KERN_WARNING "VP_IDE: User given PCI clock speed " | ||
351 | "impossible (%d), using 33 MHz instead.\n", via_clock); | ||
352 | printk(KERN_WARNING "VP_IDE: Use ide0=ata66 if you want " | ||
353 | "to assume 80-wire cable.\n"); | ||
354 | via_clock = 33333; | ||
355 | } | ||
356 | |||
357 | /* | ||
358 | * Print the boot message. | ||
359 | */ | ||
360 | |||
361 | printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %sDMA%s " | ||
362 | "controller on pci%s\n", | ||
363 | via_config->name, isa->revision, | ||
364 | via_config->udma_mask ? "U" : "MW", | ||
365 | via_dma[via_config->udma_mask ? | ||
366 | (fls(via_config->udma_mask) - 1) : 0], | ||
367 | pci_name(dev)); | ||
368 | |||
369 | pci_dev_put(isa); | ||
370 | return 0; | 323 | return 0; |
371 | } | 324 | } |
372 | 325 | ||
@@ -402,7 +355,8 @@ static int via_cable_override(struct pci_dev *pdev) | |||
402 | static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif) | 355 | static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif) |
403 | { | 356 | { |
404 | struct pci_dev *pdev = to_pci_dev(hwif->dev); | 357 | struct pci_dev *pdev = to_pci_dev(hwif->dev); |
405 | struct via82cxxx_dev *vdev = pci_get_drvdata(pdev); | 358 | struct ide_host *host = pci_get_drvdata(pdev); |
359 | struct via82cxxx_dev *vdev = host->host_priv; | ||
406 | 360 | ||
407 | if (via_cable_override(pdev)) | 361 | if (via_cable_override(pdev)) |
408 | return ATA_CBL_PATA40_SHORT; | 362 | return ATA_CBL_PATA40_SHORT; |
@@ -420,7 +374,7 @@ static const struct ide_port_ops via_port_ops = { | |||
420 | }; | 374 | }; |
421 | 375 | ||
422 | static const struct ide_port_info via82cxxx_chipset __devinitdata = { | 376 | static const struct ide_port_info via82cxxx_chipset __devinitdata = { |
423 | .name = "VP_IDE", | 377 | .name = DRV_NAME, |
424 | .init_chipset = init_chipset_via82cxxx, | 378 | .init_chipset = init_chipset_via82cxxx, |
425 | .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, | 379 | .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, |
426 | .port_ops = &via_port_ops, | 380 | .port_ops = &via_port_ops, |
@@ -436,6 +390,8 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i | |||
436 | { | 390 | { |
437 | struct pci_dev *isa = NULL; | 391 | struct pci_dev *isa = NULL; |
438 | struct via_isa_bridge *via_config; | 392 | struct via_isa_bridge *via_config; |
393 | struct via82cxxx_dev *vdev; | ||
394 | int rc; | ||
439 | u8 idx = id->driver_data; | 395 | u8 idx = id->driver_data; |
440 | struct ide_port_info d; | 396 | struct ide_port_info d; |
441 | 397 | ||
@@ -445,12 +401,42 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i | |||
445 | * Find the ISA bridge and check we know what it is. | 401 | * Find the ISA bridge and check we know what it is. |
446 | */ | 402 | */ |
447 | via_config = via_config_find(&isa); | 403 | via_config = via_config_find(&isa); |
448 | pci_dev_put(isa); | ||
449 | if (!via_config->id) { | 404 | if (!via_config->id) { |
450 | printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n"); | 405 | printk(KERN_WARNING DRV_NAME " %s: unknown chipset, skipping\n", |
406 | pci_name(dev)); | ||
451 | return -ENODEV; | 407 | return -ENODEV; |
452 | } | 408 | } |
453 | 409 | ||
410 | /* | ||
411 | * Print the boot message. | ||
412 | */ | ||
413 | printk(KERN_INFO DRV_NAME " %s: VIA %s (rev %02x) IDE %sDMA%s\n", | ||
414 | pci_name(dev), via_config->name, isa->revision, | ||
415 | via_config->udma_mask ? "U" : "MW", | ||
416 | via_dma[via_config->udma_mask ? | ||
417 | (fls(via_config->udma_mask) - 1) : 0]); | ||
418 | |||
419 | pci_dev_put(isa); | ||
420 | |||
421 | /* | ||
422 | * Determine system bus clock. | ||
423 | */ | ||
424 | via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; | ||
425 | |||
426 | switch (via_clock) { | ||
427 | case 33000: via_clock = 33333; break; | ||
428 | case 37000: via_clock = 37500; break; | ||
429 | case 41000: via_clock = 41666; break; | ||
430 | } | ||
431 | |||
432 | if (via_clock < 20000 || via_clock > 50000) { | ||
433 | printk(KERN_WARNING DRV_NAME ": User given PCI clock speed " | ||
434 | "impossible (%d), using 33 MHz instead.\n", via_clock); | ||
435 | printk(KERN_WARNING DRV_NAME ": Use ide0=ata66 if you want " | ||
436 | "to assume 80-wire cable.\n"); | ||
437 | via_clock = 33333; | ||
438 | } | ||
439 | |||
454 | if (idx == 0) | 440 | if (idx == 0) |
455 | d.host_flags |= IDE_HFLAG_NO_AUTODMA; | 441 | d.host_flags |= IDE_HFLAG_NO_AUTODMA; |
456 | else | 442 | else |
@@ -466,7 +452,29 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i | |||
466 | 452 | ||
467 | d.udma_mask = via_config->udma_mask; | 453 | d.udma_mask = via_config->udma_mask; |
468 | 454 | ||
469 | return ide_setup_pci_device(dev, &d); | 455 | vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); |
456 | if (!vdev) { | ||
457 | printk(KERN_ERR DRV_NAME " %s: out of memory :(\n", | ||
458 | pci_name(dev)); | ||
459 | return -ENOMEM; | ||
460 | } | ||
461 | |||
462 | vdev->via_config = via_config; | ||
463 | |||
464 | rc = ide_pci_init_one(dev, &d, vdev); | ||
465 | if (rc) | ||
466 | kfree(vdev); | ||
467 | |||
468 | return rc; | ||
469 | } | ||
470 | |||
471 | static void __devexit via_remove(struct pci_dev *dev) | ||
472 | { | ||
473 | struct ide_host *host = pci_get_drvdata(dev); | ||
474 | struct via82cxxx_dev *vdev = host->host_priv; | ||
475 | |||
476 | ide_pci_remove(dev); | ||
477 | kfree(vdev); | ||
470 | } | 478 | } |
471 | 479 | ||
472 | static const struct pci_device_id via_pci_tbl[] = { | 480 | static const struct pci_device_id via_pci_tbl[] = { |
@@ -483,6 +491,7 @@ static struct pci_driver driver = { | |||
483 | .name = "VIA_IDE", | 491 | .name = "VIA_IDE", |
484 | .id_table = via_pci_tbl, | 492 | .id_table = via_pci_tbl, |
485 | .probe = via_init_one, | 493 | .probe = via_init_one, |
494 | .remove = via_remove, | ||
486 | }; | 495 | }; |
487 | 496 | ||
488 | static int __init via_ide_init(void) | 497 | static int __init via_ide_init(void) |
@@ -490,7 +499,13 @@ static int __init via_ide_init(void) | |||
490 | return ide_pci_register_driver(&driver); | 499 | return ide_pci_register_driver(&driver); |
491 | } | 500 | } |
492 | 501 | ||
502 | static void __exit via_ide_exit(void) | ||
503 | { | ||
504 | pci_unregister_driver(&driver); | ||
505 | } | ||
506 | |||
493 | module_init(via_ide_init); | 507 | module_init(via_ide_init); |
508 | module_exit(via_ide_exit); | ||
494 | 509 | ||
495 | MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick"); | 510 | MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick"); |
496 | MODULE_DESCRIPTION("PCI driver module for VIA IDE"); | 511 | MODULE_DESCRIPTION("PCI driver module for VIA IDE"); |