tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * linux/drivers/ide/pci/aec62xx.c Version 0.11 March 27, 2002
3 *
4 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
5 *
6 */
7
8#include <linux/module.h>
9#include <linux/config.h>
10#include <linux/types.h>
11#include <linux/pci.h>
12#include <linux/delay.h>
13#include <linux/hdreg.h>
14#include <linux/ide.h>
15#include <linux/init.h>
16
17#include <asm/io.h>
18
19struct chipset_bus_clock_list_entry {
20 u8 xfer_speed;
21 u8 chipset_settings;
22 u8 ultra_settings;
23};
24
25static struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
26 { XFER_UDMA_6, 0x31, 0x07 },
27 { XFER_UDMA_5, 0x31, 0x06 },
28 { XFER_UDMA_4, 0x31, 0x05 },
29 { XFER_UDMA_3, 0x31, 0x04 },
30 { XFER_UDMA_2, 0x31, 0x03 },
31 { XFER_UDMA_1, 0x31, 0x02 },
32 { XFER_UDMA_0, 0x31, 0x01 },
33
34 { XFER_MW_DMA_2, 0x31, 0x00 },
35 { XFER_MW_DMA_1, 0x31, 0x00 },
36 { XFER_MW_DMA_0, 0x0a, 0x00 },
37 { XFER_PIO_4, 0x31, 0x00 },
38 { XFER_PIO_3, 0x33, 0x00 },
39 { XFER_PIO_2, 0x08, 0x00 },
40 { XFER_PIO_1, 0x0a, 0x00 },
41 { XFER_PIO_0, 0x00, 0x00 },
42 { 0, 0x00, 0x00 }
43};
44
45static struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
46 { XFER_UDMA_6, 0x41, 0x06 },
47 { XFER_UDMA_5, 0x41, 0x05 },
48 { XFER_UDMA_4, 0x41, 0x04 },
49 { XFER_UDMA_3, 0x41, 0x03 },
50 { XFER_UDMA_2, 0x41, 0x02 },
51 { XFER_UDMA_1, 0x41, 0x01 },
52 { XFER_UDMA_0, 0x41, 0x01 },
53
54 { XFER_MW_DMA_2, 0x41, 0x00 },
55 { XFER_MW_DMA_1, 0x42, 0x00 },
56 { XFER_MW_DMA_0, 0x7a, 0x00 },
57 { XFER_PIO_4, 0x41, 0x00 },
58 { XFER_PIO_3, 0x43, 0x00 },
59 { XFER_PIO_2, 0x78, 0x00 },
60 { XFER_PIO_1, 0x7a, 0x00 },
61 { XFER_PIO_0, 0x70, 0x00 },
62 { 0, 0x00, 0x00 }
63};
64
65#define BUSCLOCK(D) \
66 ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
67
68#if 0
69 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
70 (void) pci_read_config_byte(dev, 0x54, &art);
71 p += sprintf(p, "DMA Mode: %s(%s)",
72 (c0&0x20)?((art&0x03)?"UDMA":" DMA"):" PIO",
73 (art&0x02)?"2":(art&0x01)?"1":"0");
74 p += sprintf(p, " %s(%s)",
75 (c0&0x40)?((art&0x0c)?"UDMA":" DMA"):" PIO",
76 (art&0x08)?"2":(art&0x04)?"1":"0");
77 p += sprintf(p, " %s(%s)",
78 (c1&0x20)?((art&0x30)?"UDMA":" DMA"):" PIO",
79 (art&0x20)?"2":(art&0x10)?"1":"0");
80 p += sprintf(p, " %s(%s)\n",
81 (c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
82 (art&0x80)?"2":(art&0x40)?"1":"0");
83 } else {
84#endif
85
86/*
87 * TO DO: active tuning and correction of cards without a bios.
88 */
89static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
90{
91 for ( ; chipset_table->xfer_speed ; chipset_table++)
92 if (chipset_table->xfer_speed == speed) {
93 return chipset_table->chipset_settings;
94 }
95 return chipset_table->chipset_settings;
96}
97
98static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
99{
100 for ( ; chipset_table->xfer_speed ; chipset_table++)
101 if (chipset_table->xfer_speed == speed) {
102 return chipset_table->ultra_settings;
103 }
104 return chipset_table->ultra_settings;
105}
106
107static u8 aec62xx_ratemask (ide_drive_t *drive)
108{
109 ide_hwif_t *hwif = HWIF(drive);
110 u8 mode;
111
112 switch(hwif->pci_dev->device) {
113 case PCI_DEVICE_ID_ARTOP_ATP865:
114 case PCI_DEVICE_ID_ARTOP_ATP865R:
115#if 0
116 mode = (hwif->INB(hwif->dma_master) & 0x10) ? 4 : 3;
117#else
118 mode = (hwif->INB(((hwif->channel) ?
119 hwif->mate->dma_status :
120 hwif->dma_status)) & 0x10) ? 4 : 3;
121#endif
122 break;
123 case PCI_DEVICE_ID_ARTOP_ATP860:
124 case PCI_DEVICE_ID_ARTOP_ATP860R:
125 mode = 2;
126 break;
127 case PCI_DEVICE_ID_ARTOP_ATP850UF:
128 default:
129 return 1;
130 }
131
132 if (!eighty_ninty_three(drive))
133 mode = min(mode, (u8)1);
134 return mode;
135}
136
137static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
138{
139 ide_hwif_t *hwif = HWIF(drive);
140 struct pci_dev *dev = hwif->pci_dev;
141 u16 d_conf = 0;
142 u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
143 u8 ultra = 0, ultra_conf = 0;
144 u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
145 unsigned long flags;
146
147 local_irq_save(flags);
148 /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
149 pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
150 tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
151 d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
152 pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
153
154 tmp1 = 0x00;
155 tmp2 = 0x00;
156 pci_read_config_byte(dev, 0x54, &ultra);
157 tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
158 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
159 tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
160 pci_write_config_byte(dev, 0x54, tmp2);
161 local_irq_restore(flags);
162 return(ide_config_drive_speed(drive, speed));
163}
164
165static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
166{
167 ide_hwif_t *hwif = HWIF(drive);
168 struct pci_dev *dev = hwif->pci_dev;
169 u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
170 u8 unit = (drive->select.b.unit & 0x01);
171 u8 tmp1 = 0, tmp2 = 0;
172 u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
173 unsigned long flags;
174
175 local_irq_save(flags);
176 /* high 4-bits: Active, low 4-bits: Recovery */
177 pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
178 drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
179 pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
180
181 pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
182 tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
183 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
184 tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
185 pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
186 local_irq_restore(flags);
187 return(ide_config_drive_speed(drive, speed));
188}
189
190static int aec62xx_tune_chipset (ide_drive_t *drive, u8 speed)
191{
192 switch (HWIF(drive)->pci_dev->device) {
193 case PCI_DEVICE_ID_ARTOP_ATP865:
194 case PCI_DEVICE_ID_ARTOP_ATP865R:
195 case PCI_DEVICE_ID_ARTOP_ATP860:
196 case PCI_DEVICE_ID_ARTOP_ATP860R:
197 return ((int) aec6260_tune_chipset(drive, speed));
198 case PCI_DEVICE_ID_ARTOP_ATP850UF:
199 return ((int) aec6210_tune_chipset(drive, speed));
200 default:
201 return -1;
202 }
203}
204
205static int config_chipset_for_dma (ide_drive_t *drive)
206{
207 u8 speed = ide_dma_speed(drive, aec62xx_ratemask(drive));
208
209 if (!(speed))
210 return 0;
211
212 (void) aec62xx_tune_chipset(drive, speed);
213 return ide_dma_enable(drive);
214}
215
216static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
217{
218 u8 speed = 0;
219 u8 new_pio = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
220
221 switch(pio) {
222 case 5: speed = new_pio; break;
223 case 4: speed = XFER_PIO_4; break;
224 case 3: speed = XFER_PIO_3; break;
225 case 2: speed = XFER_PIO_2; break;
226 case 1: speed = XFER_PIO_1; break;
227 default: speed = XFER_PIO_0; break;
228 }
229 (void) aec62xx_tune_chipset(drive, speed);
230}
231
232static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
233{
234 ide_hwif_t *hwif = HWIF(drive);
235 struct hd_driveid *id = drive->id;
236
237 if ((id->capability & 1) && drive->autodma) {
238
239 if (ide_use_dma(drive)) {
240 if (config_chipset_for_dma(drive))
241 return hwif->ide_dma_on(drive);
242 }
243
244 goto fast_ata_pio;
245
246 } else if ((id->capability & 8) || (id->field_valid & 2)) {
247fast_ata_pio:
248 aec62xx_tune_drive(drive, 5);
249 return hwif->ide_dma_off_quietly(drive);
250 }
251 /* IORDY not supported */
252 return 0;
253}
254
255static int aec62xx_irq_timeout (ide_drive_t *drive)
256{
257 ide_hwif_t *hwif = HWIF(drive);
258 struct pci_dev *dev = hwif->pci_dev;
259
260 switch(dev->device) {
261 case PCI_DEVICE_ID_ARTOP_ATP860:
262 case PCI_DEVICE_ID_ARTOP_ATP860R:
263 case PCI_DEVICE_ID_ARTOP_ATP865:
264 case PCI_DEVICE_ID_ARTOP_ATP865R:
265 printk(" AEC62XX time out ");
266#if 0
267 {
268 int i = 0;
269 u8 reg49h = 0;
270 pci_read_config_byte(HWIF(drive)->pci_dev, 0x49, ®49h);
271 for (i=0;i<256;i++)
272 pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h|0x10);
273 pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h & ~0x10);
274 }
275 return 0;
276#endif
277 default:
278 break;
279 }
280#if 0
281 {
282 ide_hwif_t *hwif = HWIF(drive);
283 struct pci_dev *dev = hwif->pci_dev;
284 u8 tmp1 = 0, tmp2 = 0, mode6 = 0;
285
286 pci_read_config_byte(dev, 0x44, &tmp1);
287 pci_read_config_byte(dev, 0x45, &tmp2);
288 printk(" AEC6280 r44=%x r45=%x ",tmp1,tmp2);
289 mode6 = HWIF(drive)->INB(((hwif->channel) ?
290 hwif->mate->dma_status :
291 hwif->dma_status));
292 printk(" AEC6280 133=%x ", (mode6 & 0x10));
293 }
294#endif
295 return 0;
296}
297
298static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
299{
300 int bus_speed = system_bus_clock();
301
302 if (dev->resource[PCI_ROM_RESOURCE].start) {
303 pci_write_config_dword(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
304 printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, dev->resource[PCI_ROM_RESOURCE].start);
305 }
306
307 if (bus_speed <= 33)
308 pci_set_drvdata(dev, (void *) aec6xxx_33_base);
309 else
310 pci_set_drvdata(dev, (void *) aec6xxx_34_base);
311
312 return dev->irq;
313}
314
315static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
316{
317 hwif->autodma = 0;
318 hwif->tuneproc = &aec62xx_tune_drive;
319 hwif->speedproc = &aec62xx_tune_chipset;
320
321 if (hwif->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
322 hwif->serialized = hwif->channel;
323 hwif->no_dsc = 1;
324 }
325
326 if (hwif->mate)
327 hwif->mate->serialized = hwif->serialized;
328
329 if (!hwif->dma_base) {
330 hwif->drives[0].autotune = 1;
331 hwif->drives[1].autotune = 1;
332 return;
333 }
334
335 hwif->ultra_mask = 0x7f;
336 hwif->mwdma_mask = 0x07;
337 hwif->swdma_mask = 0x07;
338
339 hwif->ide_dma_check = &aec62xx_config_drive_xfer_rate;
340 hwif->ide_dma_lostirq = &aec62xx_irq_timeout;
341 hwif->ide_dma_timeout = &aec62xx_irq_timeout;
342 if (!noautodma)
343 hwif->autodma = 1;
344 hwif->drives[0].autodma = hwif->autodma;
345 hwif->drives[1].autodma = hwif->autodma;
346}
347
348static void __devinit init_dma_aec62xx(ide_hwif_t *hwif, unsigned long dmabase)
349{
350 struct pci_dev *dev = hwif->pci_dev;
351
352 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
353 u8 reg54h = 0;
354 unsigned long flags;
355
356 spin_lock_irqsave(&ide_lock, flags);
357 pci_read_config_byte(dev, 0x54, ®54h);
358 pci_write_config_byte(dev, 0x54, reg54h & ~(hwif->channel ? 0xF0 : 0x0F));
359 spin_unlock_irqrestore(&ide_lock, flags);
360 } else {
361 u8 ata66 = 0;
362 pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
363 if (!(hwif->udma_four))
364 hwif->udma_four = (ata66&(hwif->channel?0x02:0x01))?0:1;
365 }
366
367 ide_setup_dma(hwif, dmabase, 8);
368}
369
370static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d)
371{
372 return ide_setup_pci_device(dev, d);
373}
374
375static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d)
376{
377 unsigned long bar4reg = pci_resource_start(dev, 4);
378
379 if (inb(bar4reg+2) & 0x10) {
380 strcpy(d->name, "AEC6880");
381 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
382 strcpy(d->name, "AEC6880R");
383 } else {
384 strcpy(d->name, "AEC6280");
385 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
386 strcpy(d->name, "AEC6280R");
387 }
388
389 return ide_setup_pci_device(dev, d);
390}
391
392static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
393 { /* 0 */
394 .name = "AEC6210",
395 .init_setup = init_setup_aec62xx,
396 .init_chipset = init_chipset_aec62xx,
397 .init_hwif = init_hwif_aec62xx,
398 .init_dma = init_dma_aec62xx,
399 .channels = 2,
400 .autodma = AUTODMA,
401 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
402 .bootable = OFF_BOARD,
403 },{ /* 1 */
404 .name = "AEC6260",
405 .init_setup = init_setup_aec62xx,
406 .init_chipset = init_chipset_aec62xx,
407 .init_hwif = init_hwif_aec62xx,
408 .init_dma = init_dma_aec62xx,
409 .channels = 2,
410 .autodma = NOAUTODMA,
411 .bootable = OFF_BOARD,
412 },{ /* 2 */
413 .name = "AEC6260R",
414 .init_setup = init_setup_aec62xx,
415 .init_chipset = init_chipset_aec62xx,
416 .init_hwif = init_hwif_aec62xx,
417 .init_dma = init_dma_aec62xx,
418 .channels = 2,
419 .autodma = AUTODMA,
420 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
421 .bootable = NEVER_BOARD,
422 },{ /* 3 */
423 .name = "AEC6X80",
424 .init_setup = init_setup_aec6x80,
425 .init_chipset = init_chipset_aec62xx,
426 .init_hwif = init_hwif_aec62xx,
427 .init_dma = init_dma_aec62xx,
428 .channels = 2,
429 .autodma = AUTODMA,
430 .bootable = OFF_BOARD,
431 },{ /* 4 */
432 .name = "AEC6X80R",
433 .init_setup = init_setup_aec6x80,
434 .init_chipset = init_chipset_aec62xx,
435 .init_hwif = init_hwif_aec62xx,
436 .init_dma = init_dma_aec62xx,
437 .channels = 2,
438 .autodma = AUTODMA,
439 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
440 .bootable = OFF_BOARD,
441 }
442};
443
444/**
445 * aec62xx_init_one - called when a AEC is found
446 * @dev: the aec62xx device
447 * @id: the matching pci id
448 *
449 * Called when the PCI registration layer (or the IDE initialization)
450 * finds a device matching our IDE device tables.
451 */
452
453static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
454{
455 ide_pci_device_t *d = &aec62xx_chipsets[id->driver_data];
456
457 return d->init_setup(dev, d);
458}
459
460static struct pci_device_id aec62xx_pci_tbl[] = {
461 { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
462 { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
463 { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
464 { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
465 { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
466 { 0, },
467};
468MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
469
470static struct pci_driver driver = {
471 .name = "AEC62xx_IDE",
472 .id_table = aec62xx_pci_tbl,
473 .probe = aec62xx_init_one,
474};
475
476static int aec62xx_ide_init(void)
477{
478 return ide_pci_register_driver(&driver);
479}
480
481module_init(aec62xx_ide_init);
482
483MODULE_AUTHOR("Andre Hedrick");
484MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
485MODULE_LICENSE("GPL");