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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-21 14:57:23 -0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-21 14:57:23 -0400
commit2bfba3c444fe8b2ab1c38112a89d8f03b61136ca (patch)
tree17580eee63d868c9d6b97a6bc956a08f25631532 /drivers/ide/pci/alim15x3.c
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
ide: remove useless subdirs from drivers/ide/
Suggested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/alim15x3.c')
-rw-r--r--drivers/ide/pci/alim15x3.c602
1 files changed, 0 insertions, 602 deletions
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
deleted file mode 100644
index daf9dce39e52..000000000000
--- a/drivers/ide/pci/alim15x3.c
+++ /dev/null
@@ -1,602 +0,0 @@
1/*
2 * Copyright (C) 1998-2000 Michel Aubry, Maintainer
3 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
4 * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
5 *
6 * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
7 * May be copied or modified under the terms of the GNU General Public License
8 * Copyright (C) 2002 Alan Cox <alan@redhat.com>
9 * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
10 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
11 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
12 *
13 * (U)DMA capable version of ali 1533/1543(C), 1535(D)
14 *
15 **********************************************************************
16 * 9/7/99 --Parts from the above author are included and need to be
17 * converted into standard interface, once I finish the thought.
18 *
19 * Recent changes
20 * Don't use LBA48 mode on ALi <= 0xC4
21 * Don't poke 0x79 with a non ALi northbridge
22 * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang)
23 * Allow UDMA6 on revisions > 0xC4
24 *
25 * Documentation
26 * Chipset documentation available under NDA only
27 *
28 */
29
30#include <linux/module.h>
31#include <linux/types.h>
32#include <linux/kernel.h>
33#include <linux/pci.h>
34#include <linux/ide.h>
35#include <linux/init.h>
36#include <linux/dmi.h>
37
38#include <asm/io.h>
39
40#define DRV_NAME "alim15x3"
41
42/*
43 * Allow UDMA on M1543C-E chipset for WDC disks that ignore CRC checking
44 * (this is DANGEROUS and could result in data corruption).
45 */
46static int wdc_udma;
47
48module_param(wdc_udma, bool, 0);
49MODULE_PARM_DESC(wdc_udma,
50 "allow UDMA on M1543C-E chipset for WDC disks (DANGEROUS)");
51
52/*
53 * ALi devices are not plug in. Otherwise these static values would
54 * need to go. They ought to go away anyway
55 */
56
57static u8 m5229_revision;
58static u8 chip_is_1543c_e;
59static struct pci_dev *isa_dev;
60
61/**
62 * ali_set_pio_mode - set host controller for PIO mode
63 * @drive: drive
64 * @pio: PIO mode number
65 *
66 * Program the controller for the given PIO mode.
67 */
68
69static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
70{
71 ide_hwif_t *hwif = HWIF(drive);
72 struct pci_dev *dev = to_pci_dev(hwif->dev);
73 struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
74 int s_time = t->setup, a_time = t->active, c_time = t->cycle;
75 u8 s_clc, a_clc, r_clc;
76 unsigned long flags;
77 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
78 int port = hwif->channel ? 0x5c : 0x58;
79 int portFIFO = hwif->channel ? 0x55 : 0x54;
80 u8 cd_dma_fifo = 0, unit = drive->dn & 1;
81
82 if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
83 s_clc = 0;
84 if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8)
85 a_clc = 0;
86
87 if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) {
88 r_clc = 1;
89 } else {
90 if (r_clc >= 16)
91 r_clc = 0;
92 }
93 local_irq_save(flags);
94
95 /*
96 * PIO mode => ATA FIFO on, ATAPI FIFO off
97 */
98 pci_read_config_byte(dev, portFIFO, &cd_dma_fifo);
99 if (drive->media==ide_disk) {
100 if (unit) {
101 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50);
102 } else {
103 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05);
104 }
105 } else {
106 if (unit) {
107 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F);
108 } else {
109 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0);
110 }
111 }
112
113 pci_write_config_byte(dev, port, s_clc);
114 pci_write_config_byte(dev, port + unit + 2, (a_clc << 4) | r_clc);
115 local_irq_restore(flags);
116}
117
118/**
119 * ali_udma_filter - compute UDMA mask
120 * @drive: IDE device
121 *
122 * Return available UDMA modes.
123 *
124 * The actual rules for the ALi are:
125 * No UDMA on revisions <= 0x20
126 * Disk only for revisions < 0xC2
127 * Not WDC drives on M1543C-E (?)
128 */
129
130static u8 ali_udma_filter(ide_drive_t *drive)
131{
132 if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
133 if (drive->media != ide_disk)
134 return 0;
135 if (wdc_udma == 0 && chip_is_1543c_e &&
136 strstr((char *)&drive->id[ATA_ID_PROD], "WDC "))
137 return 0;
138 }
139
140 return drive->hwif->ultra_mask;
141}
142
143/**
144 * ali_set_dma_mode - set host controller for DMA mode
145 * @drive: drive
146 * @speed: DMA mode
147 *
148 * Configure the hardware for the desired IDE transfer mode.
149 */
150
151static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed)
152{
153 ide_hwif_t *hwif = HWIF(drive);
154 struct pci_dev *dev = to_pci_dev(hwif->dev);
155 u8 speed1 = speed;
156 u8 unit = drive->dn & 1;
157 u8 tmpbyte = 0x00;
158 int m5229_udma = (hwif->channel) ? 0x57 : 0x56;
159
160 if (speed == XFER_UDMA_6)
161 speed1 = 0x47;
162
163 if (speed < XFER_UDMA_0) {
164 u8 ultra_enable = (unit) ? 0x7f : 0xf7;
165 /*
166 * clear "ultra enable" bit
167 */
168 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
169 tmpbyte &= ultra_enable;
170 pci_write_config_byte(dev, m5229_udma, tmpbyte);
171
172 /*
173 * FIXME: Oh, my... DMA timings are never set.
174 */
175 } else {
176 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
177 tmpbyte &= (0x0f << ((1-unit) << 2));
178 /*
179 * enable ultra dma and set timing
180 */
181 tmpbyte |= ((0x08 | ((4-speed1)&0x07)) << (unit << 2));
182 pci_write_config_byte(dev, m5229_udma, tmpbyte);
183 if (speed >= XFER_UDMA_3) {
184 pci_read_config_byte(dev, 0x4b, &tmpbyte);
185 tmpbyte |= 1;
186 pci_write_config_byte(dev, 0x4b, tmpbyte);
187 }
188 }
189}
190
191/**
192 * ali15x3_dma_setup - begin a DMA phase
193 * @drive: target device
194 *
195 * Returns 1 if the DMA cannot be performed, zero on success.
196 */
197
198static int ali15x3_dma_setup(ide_drive_t *drive)
199{
200 if (m5229_revision < 0xC2 && drive->media != ide_disk) {
201 if (rq_data_dir(drive->hwif->hwgroup->rq))
202 return 1; /* try PIO instead of DMA */
203 }
204 return ide_dma_setup(drive);
205}
206
207/**
208 * init_chipset_ali15x3 - Initialise an ALi IDE controller
209 * @dev: PCI device
210 *
211 * This function initializes the ALI IDE controller and where
212 * appropriate also sets up the 1533 southbridge.
213 */
214
215static unsigned int init_chipset_ali15x3(struct pci_dev *dev)
216{
217 unsigned long flags;
218 u8 tmpbyte;
219 struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));
220
221 m5229_revision = dev->revision;
222
223 isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
224
225 local_irq_save(flags);
226
227 if (m5229_revision < 0xC2) {
228 /*
229 * revision 0x20 (1543-E, 1543-F)
230 * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
231 * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
232 */
233 pci_read_config_byte(dev, 0x4b, &tmpbyte);
234 /*
235 * clear bit 7
236 */
237 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
238 /*
239 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
240 */
241 if (m5229_revision >= 0x20 && isa_dev) {
242 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
243 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
244 }
245 goto out;
246 }
247
248 /*
249 * 1543C-B?, 1535, 1535D, 1553
250 * Note 1: not all "motherboard" support this detection
251 * Note 2: if no udma 66 device, the detection may "error".
252 * but in this case, we will not set the device to
253 * ultra 66, the detection result is not important
254 */
255
256 /*
257 * enable "Cable Detection", m5229, 0x4b, bit3
258 */
259 pci_read_config_byte(dev, 0x4b, &tmpbyte);
260 pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
261
262 /*
263 * We should only tune the 1533 enable if we are using an ALi
264 * North bridge. We might have no north found on some zany
265 * box without a device at 0:0.0. The ALi bridge will be at
266 * 0:0.0 so if we didn't find one we know what is cooking.
267 */
268 if (north && north->vendor != PCI_VENDOR_ID_AL)
269 goto out;
270
271 if (m5229_revision < 0xC5 && isa_dev)
272 {
273 /*
274 * set south-bridge's enable bit, m1533, 0x79
275 */
276
277 pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
278 if (m5229_revision == 0xC2) {
279 /*
280 * 1543C-B0 (m1533, 0x79, bit 2)
281 */
282 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
283 } else if (m5229_revision >= 0xC3) {
284 /*
285 * 1553/1535 (m1533, 0x79, bit 1)
286 */
287 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
288 }
289 }
290
291out:
292 /*
293 * CD_ROM DMA on (m5229, 0x53, bit0)
294 * Enable this bit even if we want to use PIO.
295 * PIO FIFO off (m5229, 0x53, bit1)
296 * The hardware will use 0x54h and 0x55h to control PIO FIFO.
297 * (Not on later devices it seems)
298 *
299 * 0x53 changes meaning on later revs - we must no touch
300 * bit 1 on them. Need to check if 0x20 is the right break.
301 */
302 if (m5229_revision >= 0x20) {
303 pci_read_config_byte(dev, 0x53, &tmpbyte);
304
305 if (m5229_revision <= 0x20)
306 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
307 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
308 tmpbyte |= 0x03;
309 else
310 tmpbyte |= 0x01;
311
312 pci_write_config_byte(dev, 0x53, tmpbyte);
313 }
314 pci_dev_put(north);
315 pci_dev_put(isa_dev);
316 local_irq_restore(flags);
317 return 0;
318}
319
320/*
321 * Cable special cases
322 */
323
324static const struct dmi_system_id cable_dmi_table[] = {
325 {
326 .ident = "HP Pavilion N5430",
327 .matches = {
328 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
329 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
330 },
331 },
332 {
333 .ident = "Toshiba Satellite S1800-814",
334 .matches = {
335 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
336 DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
337 },
338 },
339 { }
340};
341
342static int ali_cable_override(struct pci_dev *pdev)
343{
344 /* Fujitsu P2000 */
345 if (pdev->subsystem_vendor == 0x10CF &&
346 pdev->subsystem_device == 0x10AF)
347 return 1;
348
349 /* Mitac 8317 (Winbook-A) and relatives */
350 if (pdev->subsystem_vendor == 0x1071 &&
351 pdev->subsystem_device == 0x8317)
352 return 1;
353
354 /* Systems by DMI */
355 if (dmi_check_system(cable_dmi_table))
356 return 1;
357
358 return 0;
359}
360
361/**
362 * ali_cable_detect - cable detection
363 * @hwif: IDE interface
364 *
365 * This checks if the controller and the cable are capable
366 * of UDMA66 transfers. It doesn't check the drives.
367 * But see note 2 below!
368 *
369 * FIXME: frobs bits that are not defined on newer ALi devicea
370 */
371
372static u8 ali_cable_detect(ide_hwif_t *hwif)
373{
374 struct pci_dev *dev = to_pci_dev(hwif->dev);
375 unsigned long flags;
376 u8 cbl = ATA_CBL_PATA40, tmpbyte;
377
378 local_irq_save(flags);
379
380 if (m5229_revision >= 0xC2) {
381 /*
382 * m5229 80-pin cable detection (from Host View)
383 *
384 * 0x4a bit0 is 0 => primary channel has 80-pin
385 * 0x4a bit1 is 0 => secondary channel has 80-pin
386 *
387 * Certain laptops use short but suitable cables
388 * and don't implement the detect logic.
389 */
390 if (ali_cable_override(dev))
391 cbl = ATA_CBL_PATA40_SHORT;
392 else {
393 pci_read_config_byte(dev, 0x4a, &tmpbyte);
394 if ((tmpbyte & (1 << hwif->channel)) == 0)
395 cbl = ATA_CBL_PATA80;
396 }
397 }
398
399 local_irq_restore(flags);
400
401 return cbl;
402}
403
404#if !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC)
405/**
406 * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
407 * @hwif: interface to configure
408 *
409 * Obtain the IRQ tables for an ALi based IDE solution on the PC
410 * class platforms. This part of the code isn't applicable to the
411 * Sparc and PowerPC systems.
412 */
413
414static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
415{
416 struct pci_dev *dev = to_pci_dev(hwif->dev);
417 u8 ideic, inmir;
418 s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
419 1, 11, 0, 12, 0, 14, 0, 15 };
420 int irq = -1;
421
422 if (dev->device == PCI_DEVICE_ID_AL_M5229)
423 hwif->irq = hwif->channel ? 15 : 14;
424
425 if (isa_dev) {
426 /*
427 * read IDE interface control
428 */
429 pci_read_config_byte(isa_dev, 0x58, &ideic);
430
431 /* bit0, bit1 */
432 ideic = ideic & 0x03;
433
434 /* get IRQ for IDE Controller */
435 if ((hwif->channel && ideic == 0x03) ||
436 (!hwif->channel && !ideic)) {
437 /*
438 * get SIRQ1 routing table
439 */
440 pci_read_config_byte(isa_dev, 0x44, &inmir);
441 inmir = inmir & 0x0f;
442 irq = irq_routing_table[inmir];
443 } else if (hwif->channel && !(ideic & 0x01)) {
444 /*
445 * get SIRQ2 routing table
446 */
447 pci_read_config_byte(isa_dev, 0x75, &inmir);
448 inmir = inmir & 0x0f;
449 irq = irq_routing_table[inmir];
450 }
451 if(irq >= 0)
452 hwif->irq = irq;
453 }
454}
455#else
456#define init_hwif_ali15x3 NULL
457#endif /* !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) */
458
459/**
460 * init_dma_ali15x3 - set up DMA on ALi15x3
461 * @hwif: IDE interface
462 * @d: IDE port info
463 *
464 * Set up the DMA functionality on the ALi 15x3.
465 */
466
467static int __devinit init_dma_ali15x3(ide_hwif_t *hwif,
468 const struct ide_port_info *d)
469{
470 struct pci_dev *dev = to_pci_dev(hwif->dev);
471 unsigned long base = ide_pci_dma_base(hwif, d);
472
473 if (base == 0)
474 return -1;
475
476 hwif->dma_base = base;
477
478 if (ide_pci_check_simplex(hwif, d) < 0)
479 return -1;
480
481 if (ide_pci_set_master(dev, d->name) < 0)
482 return -1;
483
484 if (!hwif->channel)
485 outb(inb(base + 2) & 0x60, base + 2);
486
487 printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
488 hwif->name, base, base + 7);
489
490 if (ide_allocate_dma_engine(hwif))
491 return -1;
492
493 hwif->dma_ops = &sff_dma_ops;
494
495 return 0;
496}
497
498static const struct ide_port_ops ali_port_ops = {
499 .set_pio_mode = ali_set_pio_mode,
500 .set_dma_mode = ali_set_dma_mode,
501 .udma_filter = ali_udma_filter,
502 .cable_detect = ali_cable_detect,
503};
504
505static const struct ide_dma_ops ali_dma_ops = {
506 .dma_host_set = ide_dma_host_set,
507 .dma_setup = ali15x3_dma_setup,
508 .dma_exec_cmd = ide_dma_exec_cmd,
509 .dma_start = ide_dma_start,
510 .dma_end = ide_dma_end,
511 .dma_test_irq = ide_dma_test_irq,
512 .dma_lost_irq = ide_dma_lost_irq,
513 .dma_timeout = ide_dma_timeout,
514};
515
516static const struct ide_port_info ali15x3_chipset __devinitdata = {
517 .name = DRV_NAME,
518 .init_chipset = init_chipset_ali15x3,
519 .init_hwif = init_hwif_ali15x3,
520 .init_dma = init_dma_ali15x3,
521 .port_ops = &ali_port_ops,
522 .pio_mask = ATA_PIO5,
523 .swdma_mask = ATA_SWDMA2,
524 .mwdma_mask = ATA_MWDMA2,
525};
526
527/**
528 * alim15x3_init_one - set up an ALi15x3 IDE controller
529 * @dev: PCI device to set up
530 *
531 * Perform the actual set up for an ALi15x3 that has been found by the
532 * hot plug layer.
533 */
534
535static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
536{
537 struct ide_port_info d = ali15x3_chipset;
538 u8 rev = dev->revision, idx = id->driver_data;
539
540 /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
541 if (rev <= 0xC4)
542 d.host_flags |= IDE_HFLAG_NO_LBA48_DMA;
543
544 if (rev >= 0x20) {
545 if (rev == 0x20)
546 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
547
548 if (rev < 0xC2)
549 d.udma_mask = ATA_UDMA2;
550 else if (rev == 0xC2 || rev == 0xC3)
551 d.udma_mask = ATA_UDMA4;
552 else if (rev == 0xC4)
553 d.udma_mask = ATA_UDMA5;
554 else
555 d.udma_mask = ATA_UDMA6;
556
557 d.dma_ops = &ali_dma_ops;
558 } else {
559 d.host_flags |= IDE_HFLAG_NO_DMA;
560
561 d.mwdma_mask = d.swdma_mask = 0;
562 }
563
564 if (idx == 0)
565 d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
566
567 return ide_pci_init_one(dev, &d, NULL);
568}
569
570
571static const struct pci_device_id alim15x3_pci_tbl[] = {
572 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 },
573 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 1 },
574 { 0, },
575};
576MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
577
578static struct pci_driver alim15x3_pci_driver = {
579 .name = "ALI15x3_IDE",
580 .id_table = alim15x3_pci_tbl,
581 .probe = alim15x3_init_one,
582 .remove = ide_pci_remove,
583 .suspend = ide_pci_suspend,
584 .resume = ide_pci_resume,
585};
586
587static int __init ali15x3_ide_init(void)
588{
589 return ide_pci_register_driver(&alim15x3_pci_driver);
590}
591
592static void __exit ali15x3_ide_exit(void)
593{
594 return pci_unregister_driver(&alim15x3_pci_driver);
595}
596
597module_init(ali15x3_ide_init);
598module_exit(ali15x3_ide_exit);
599
600MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox");
601MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
602MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 02:49:27 -0500