2 * linux/drivers/ide/pci/cmd64x.c Version 1.47 Mar 19, 2007
4 * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines.
5 * Due to massive hardware bugs, UltraDMA is only supported
6 * on the 646U2 and not on the 646U.
8 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
9 * Copyright (C) 1998 David S. Miller (davem@redhat.com)
11 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
12 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
15 #include <linux/module.h>
16 #include <linux/types.h>
17 #include <linux/pci.h>
18 #include <linux/delay.h>
19 #include <linux/hdreg.h>
20 #include <linux/ide.h>
21 #include <linux/init.h>
25 #define DISPLAY_CMD64X_TIMINGS
30 #define cmdprintk(x...) printk(x)
32 #define cmdprintk(x...)
36 * CMD64x specific registers definition.
39 #define CFR_INTR_CH0 0x04
41 #define CNTRL_ENA_1ST 0x04
42 #define CNTRL_ENA_2ND 0x08
43 #define CNTRL_DIS_RA0 0x40
44 #define CNTRL_DIS_RA1 0x80
52 #define ARTTIM23_DIS_RA2 0x04
53 #define ARTTIM23_DIS_RA3 0x08
54 #define ARTTIM23_INTR_CH1 0x10
64 #define MRDMODE_INTR_CH0 0x04
65 #define MRDMODE_INTR_CH1 0x08
66 #define MRDMODE_BLK_CH0 0x10
67 #define MRDMODE_BLK_CH1 0x20
69 #define UDIDETCR0 0x73
74 #define UDIDETCR1 0x7B
77 #if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
78 #include <linux/stat.h>
79 #include <linux/proc_fs.h>
81 static u8 cmd64x_proc = 0;
83 #define CMD_MAX_DEVS 5
85 static struct pci_dev *cmd_devs[CMD_MAX_DEVS];
86 static int n_cmd_devs;
88 static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
91 u8 reg72 = 0, reg73 = 0; /* primary */
92 u8 reg7a = 0, reg7b = 0; /* secondary */
93 u8 reg50 = 1, reg51 = 1, reg57 = 0, reg71 = 0; /* extra */
96 p += sprintf(p, "\nController: %d\n", index);
97 p += sprintf(p, "PCI-%x Chipset.\n", dev->device);
99 (void) pci_read_config_byte(dev, CFR, ®50);
100 (void) pci_read_config_byte(dev, CNTRL, ®51);
101 (void) pci_read_config_byte(dev, ARTTIM23, ®57);
102 (void) pci_read_config_byte(dev, MRDMODE, ®71);
103 (void) pci_read_config_byte(dev, BMIDESR0, ®72);
104 (void) pci_read_config_byte(dev, UDIDETCR0, ®73);
105 (void) pci_read_config_byte(dev, BMIDESR1, ®7a);
106 (void) pci_read_config_byte(dev, UDIDETCR1, ®7b);
108 /* PCI0643/6 originally didn't have the primary channel enable bit */
109 (void) pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
110 if ((dev->device == PCI_DEVICE_ID_CMD_643) ||
111 (dev->device == PCI_DEVICE_ID_CMD_646 && rev < 3))
112 reg51 |= CNTRL_ENA_1ST;
114 p += sprintf(p, "---------------- Primary Channel "
115 "---------------- Secondary Channel ------------\n");
116 p += sprintf(p, " %s %s\n",
117 (reg51 & CNTRL_ENA_1ST) ? "enabled " : "disabled",
118 (reg51 & CNTRL_ENA_2ND) ? "enabled " : "disabled");
119 p += sprintf(p, "---------------- drive0 --------- drive1 "
120 "-------- drive0 --------- drive1 ------\n");
121 p += sprintf(p, "DMA enabled: %s %s"
123 (reg72 & 0x20) ? "yes" : "no ", (reg72 & 0x40) ? "yes" : "no ",
124 (reg7a & 0x20) ? "yes" : "no ", (reg7a & 0x40) ? "yes" : "no ");
125 p += sprintf(p, "UltraDMA mode: %s (%c) %s (%c)",
126 ( reg73 & 0x01) ? " on" : "off",
127 ((reg73 & 0x30) == 0x30) ? ((reg73 & 0x04) ? '3' : '0') :
128 ((reg73 & 0x30) == 0x20) ? ((reg73 & 0x04) ? '3' : '1') :
129 ((reg73 & 0x30) == 0x10) ? ((reg73 & 0x04) ? '4' : '2') :
130 ((reg73 & 0x30) == 0x00) ? ((reg73 & 0x04) ? '5' : '2') : '?',
131 ( reg73 & 0x02) ? " on" : "off",
132 ((reg73 & 0xC0) == 0xC0) ? ((reg73 & 0x08) ? '3' : '0') :
133 ((reg73 & 0xC0) == 0x80) ? ((reg73 & 0x08) ? '3' : '1') :
134 ((reg73 & 0xC0) == 0x40) ? ((reg73 & 0x08) ? '4' : '2') :
135 ((reg73 & 0xC0) == 0x00) ? ((reg73 & 0x08) ? '5' : '2') : '?');
136 p += sprintf(p, " %s (%c) %s (%c)\n",
137 ( reg7b & 0x01) ? " on" : "off",
138 ((reg7b & 0x30) == 0x30) ? ((reg7b & 0x04) ? '3' : '0') :
139 ((reg7b & 0x30) == 0x20) ? ((reg7b & 0x04) ? '3' : '1') :
140 ((reg7b & 0x30) == 0x10) ? ((reg7b & 0x04) ? '4' : '2') :
141 ((reg7b & 0x30) == 0x00) ? ((reg7b & 0x04) ? '5' : '2') : '?',
142 ( reg7b & 0x02) ? " on" : "off",
143 ((reg7b & 0xC0) == 0xC0) ? ((reg7b & 0x08) ? '3' : '0') :
144 ((reg7b & 0xC0) == 0x80) ? ((reg7b & 0x08) ? '3' : '1') :
145 ((reg7b & 0xC0) == 0x40) ? ((reg7b & 0x08) ? '4' : '2') :
146 ((reg7b & 0xC0) == 0x00) ? ((reg7b & 0x08) ? '5' : '2') : '?');
147 p += sprintf(p, "Interrupt: %s, %s %s, %s\n",
148 (reg71 & MRDMODE_BLK_CH0 ) ? "blocked" : "enabled",
149 (reg50 & CFR_INTR_CH0 ) ? "pending" : "clear ",
150 (reg71 & MRDMODE_BLK_CH1 ) ? "blocked" : "enabled",
151 (reg57 & ARTTIM23_INTR_CH1) ? "pending" : "clear ");
156 static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count)
161 for (i = 0; i < n_cmd_devs; i++) {
162 struct pci_dev *dev = cmd_devs[i];
163 p = print_cmd64x_get_info(p, dev, i);
165 return p-buffer; /* => must be less than 4k! */
168 #endif /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) */
170 static u8 quantize_timing(int timing, int quant)
172 return (timing + quant - 1) / quant;
176 * This routine calculates active/recovery counts and then writes them into
177 * the chipset registers.
179 static void program_cycle_times (ide_drive_t *drive, int cycle_time, int active_time)
181 struct pci_dev *dev = HWIF(drive)->pci_dev;
182 int clock_time = 1000 / system_bus_clock();
183 u8 cycle_count, active_count, recovery_count, drwtim;
184 static const u8 recovery_values[] =
185 {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0};
186 static const u8 drwtim_regs[4] = {DRWTIM0, DRWTIM1, DRWTIM2, DRWTIM3};
188 cmdprintk("program_cycle_times parameters: total=%d, active=%d\n",
189 cycle_time, active_time);
191 cycle_count = quantize_timing( cycle_time, clock_time);
192 active_count = quantize_timing(active_time, clock_time);
193 recovery_count = cycle_count - active_count;
196 * In case we've got too long recovery phase, try to lengthen
199 if (recovery_count > 16) {
200 active_count += recovery_count - 16;
203 if (active_count > 16) /* shouldn't actually happen... */
206 cmdprintk("Final counts: total=%d, active=%d, recovery=%d\n",
207 cycle_count, active_count, recovery_count);
210 * Convert values to internal chipset representation
212 recovery_count = recovery_values[recovery_count];
213 active_count &= 0x0f;
215 /* Program the active/recovery counts into the DRWTIM register */
216 drwtim = (active_count << 4) | recovery_count;
217 (void) pci_write_config_byte(dev, drwtim_regs[drive->dn], drwtim);
218 cmdprintk("Write 0x%02x to reg 0x%x\n", drwtim, drwtim_regs[drive->dn]);
222 * This routine selects drive's best PIO mode and writes into the chipset
223 * registers setup/active/recovery timings.
225 static u8 cmd64x_tune_pio (ide_drive_t *drive, u8 mode_wanted)
227 ide_hwif_t *hwif = HWIF(drive);
228 struct pci_dev *dev = hwif->pci_dev;
230 u8 pio_mode, setup_count, arttim = 0;
231 static const u8 setup_values[] = {0x40, 0x40, 0x40, 0x80, 0, 0xc0};
232 static const u8 arttim_regs[4] = {ARTTIM0, ARTTIM1, ARTTIM23, ARTTIM23};
233 pio_mode = ide_get_best_pio_mode(drive, mode_wanted, 5, &pio);
235 cmdprintk("%s: PIO mode wanted %d, selected %d (%d ns)%s\n",
236 drive->name, mode_wanted, pio_mode, pio.cycle_time,
237 pio.overridden ? " (overriding vendor mode)" : "");
239 program_cycle_times(drive, pio.cycle_time,
240 ide_pio_timings[pio_mode].active_time);
242 setup_count = quantize_timing(ide_pio_timings[pio_mode].setup_time,
243 1000 / system_bus_clock());
246 * The primary channel has individual address setup timing registers
247 * for each drive and the hardware selects the slowest timing itself.
248 * The secondary channel has one common register and we have to select
249 * the slowest address setup timing ourselves.
252 ide_drive_t *drives = hwif->drives;
254 drive->drive_data = setup_count;
255 setup_count = max(drives[0].drive_data, drives[1].drive_data);
258 if (setup_count > 5) /* shouldn't actually happen... */
260 cmdprintk("Final address setup count: %d\n", setup_count);
263 * Program the address setup clocks into the ARTTIM registers.
264 * Avoid clearing the secondary channel's interrupt bit.
266 (void) pci_read_config_byte (dev, arttim_regs[drive->dn], &arttim);
268 arttim &= ~ARTTIM23_INTR_CH1;
270 arttim |= setup_values[setup_count];
271 (void) pci_write_config_byte(dev, arttim_regs[drive->dn], arttim);
272 cmdprintk("Write 0x%02x to reg 0x%x\n", arttim, arttim_regs[drive->dn]);
278 * Attempts to set drive's PIO mode.
279 * Special cases are 8: prefetch off, 9: prefetch on (both never worked),
280 * and 255: auto-select best mode (used at boot time).
282 static void cmd64x_tune_drive (ide_drive_t *drive, u8 pio)
285 * Filter out the prefetch control values
286 * to prevent PIO5 from being programmed
288 if (pio == 8 || pio == 9)
291 pio = cmd64x_tune_pio(drive, pio);
292 (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio);
295 static u8 cmd64x_ratemask (ide_drive_t *drive)
297 struct pci_dev *dev = HWIF(drive)->pci_dev;
300 switch(dev->device) {
301 case PCI_DEVICE_ID_CMD_649:
304 case PCI_DEVICE_ID_CMD_648:
307 case PCI_DEVICE_ID_CMD_643:
310 case PCI_DEVICE_ID_CMD_646:
312 unsigned int class_rev = 0;
313 pci_read_config_dword(dev,
314 PCI_CLASS_REVISION, &class_rev);
317 * UltraDMA only supported on PCI646U and PCI646U2, which
318 * correspond to revisions 0x03, 0x05 and 0x07 respectively.
319 * Actually, although the CMD tech support people won't
320 * tell me the details, the 0x03 revision cannot support
321 * UDMA correctly without hardware modifications, and even
322 * then it only works with Quantum disks due to some
323 * hold time assumptions in the 646U part which are fixed
326 * So we only do UltraDMA on revision 0x05 and 0x07 chipsets.
339 if (!eighty_ninty_three(drive))
340 mode = min(mode, (u8)1);
344 static int cmd64x_tune_chipset (ide_drive_t *drive, u8 speed)
346 ide_hwif_t *hwif = HWIF(drive);
347 struct pci_dev *dev = hwif->pci_dev;
348 u8 unit = drive->dn & 0x01;
349 u8 regU = 0, pciU = hwif->channel ? UDIDETCR1 : UDIDETCR0;
351 speed = ide_rate_filter(cmd64x_ratemask(drive), speed);
353 if (speed >= XFER_SW_DMA_0) {
354 (void) pci_read_config_byte(dev, pciU, ®U);
355 regU &= ~(unit ? 0xCA : 0x35);
360 regU |= unit ? 0x0A : 0x05;
363 regU |= unit ? 0x4A : 0x15;
366 regU |= unit ? 0x8A : 0x25;
369 regU |= unit ? 0x42 : 0x11;
372 regU |= unit ? 0x82 : 0x21;
375 regU |= unit ? 0xC2 : 0x31;
378 program_cycle_times(drive, 120, 70);
381 program_cycle_times(drive, 150, 80);
384 program_cycle_times(drive, 480, 215);
392 (void) cmd64x_tune_pio(drive, speed - XFER_PIO_0);
398 if (speed >= XFER_SW_DMA_0)
399 (void) pci_write_config_byte(dev, pciU, regU);
401 return ide_config_drive_speed(drive, speed);
404 static int config_chipset_for_dma (ide_drive_t *drive)
406 u8 speed = ide_dma_speed(drive, cmd64x_ratemask(drive));
411 if (cmd64x_tune_chipset(drive, speed))
414 return ide_dma_enable(drive);
417 static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
419 if (ide_use_dma(drive) && config_chipset_for_dma(drive))
422 if (ide_use_fast_pio(drive))
423 cmd64x_tune_drive(drive, 255);
428 static int cmd648_ide_dma_end (ide_drive_t *drive)
430 ide_hwif_t *hwif = HWIF(drive);
431 int err = __ide_dma_end(drive);
432 u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
434 u8 mrdmode = inb(hwif->dma_master + 0x01);
436 /* clear the interrupt bit */
437 outb(mrdmode | irq_mask, hwif->dma_master + 0x01);
442 static int cmd64x_ide_dma_end (ide_drive_t *drive)
444 ide_hwif_t *hwif = HWIF(drive);
445 struct pci_dev *dev = hwif->pci_dev;
446 int irq_reg = hwif->channel ? ARTTIM23 : CFR;
447 u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 :
450 int err = __ide_dma_end(drive);
452 (void) pci_read_config_byte(dev, irq_reg, &irq_stat);
453 /* clear the interrupt bit */
454 (void) pci_write_config_byte(dev, irq_reg, irq_stat | irq_mask);
459 static int cmd648_ide_dma_test_irq (ide_drive_t *drive)
461 ide_hwif_t *hwif = HWIF(drive);
462 u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
464 u8 dma_stat = inb(hwif->dma_status);
465 u8 mrdmode = inb(hwif->dma_master + 0x01);
468 printk("%s: dma_stat: 0x%02x mrdmode: 0x%02x irq_mask: 0x%02x\n",
469 drive->name, dma_stat, mrdmode, irq_mask);
471 if (!(mrdmode & irq_mask))
474 /* return 1 if INTR asserted */
481 static int cmd64x_ide_dma_test_irq (ide_drive_t *drive)
483 ide_hwif_t *hwif = HWIF(drive);
484 struct pci_dev *dev = hwif->pci_dev;
485 int irq_reg = hwif->channel ? ARTTIM23 : CFR;
486 u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 :
488 u8 dma_stat = inb(hwif->dma_status);
491 (void) pci_read_config_byte(dev, irq_reg, &irq_stat);
494 printk("%s: dma_stat: 0x%02x irq_stat: 0x%02x irq_mask: 0x%02x\n",
495 drive->name, dma_stat, irq_stat, irq_mask);
497 if (!(irq_stat & irq_mask))
500 /* return 1 if INTR asserted */
508 * ASUS P55T2P4D with CMD646 chipset revision 0x01 requires the old
509 * event order for DMA transfers.
512 static int cmd646_1_ide_dma_end (ide_drive_t *drive)
514 ide_hwif_t *hwif = HWIF(drive);
515 u8 dma_stat = 0, dma_cmd = 0;
517 drive->waiting_for_dma = 0;
519 dma_stat = inb(hwif->dma_status);
520 /* read DMA command state */
521 dma_cmd = inb(hwif->dma_command);
523 outb(dma_cmd & ~1, hwif->dma_command);
524 /* clear the INTR & ERROR bits */
525 outb(dma_stat | 6, hwif->dma_status);
526 /* and free any DMA resources */
527 ide_destroy_dmatable(drive);
528 /* verify good DMA status */
529 return (dma_stat & 7) != 4;
532 static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const char *name)
537 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
540 switch(dev->device) {
541 case PCI_DEVICE_ID_CMD_643:
543 case PCI_DEVICE_ID_CMD_646:
544 printk(KERN_INFO "%s: chipset revision 0x%02X, ", name, class_rev);
548 printk("UltraDMA Capable");
551 printk("MultiWord DMA Force Limited");
555 printk("MultiWord DMA Limited, IRQ workaround enabled");
560 case PCI_DEVICE_ID_CMD_648:
561 case PCI_DEVICE_ID_CMD_649:
567 /* Set a good latency timer and cache line size value. */
568 (void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
569 /* FIXME: pci_set_master() to ensure a good latency timer value */
571 /* Setup interrupts. */
572 (void) pci_read_config_byte(dev, MRDMODE, &mrdmode);
574 (void) pci_write_config_byte(dev, MRDMODE, mrdmode);
576 /* Use MEMORY READ LINE for reads.
577 * NOTE: Although not mentioned in the PCI0646U specs,
578 * these bits are write only and won't be read
579 * back as set or not. The PCI0646U2 specs clarify
582 (void) pci_write_config_byte(dev, MRDMODE, mrdmode | 0x02);
584 /* Set reasonable active/recovery/address-setup values. */
585 (void) pci_write_config_byte(dev, ARTTIM0, 0x40);
586 (void) pci_write_config_byte(dev, DRWTIM0, 0x3f);
587 (void) pci_write_config_byte(dev, ARTTIM1, 0x40);
588 (void) pci_write_config_byte(dev, DRWTIM1, 0x3f);
590 (void) pci_write_config_byte(dev, ARTTIM23, 0x1c);
592 (void) pci_write_config_byte(dev, ARTTIM23, 0x5c);
594 (void) pci_write_config_byte(dev, DRWTIM23, 0x3f);
595 (void) pci_write_config_byte(dev, DRWTIM3, 0x3f);
597 (void) pci_write_config_byte(dev, UDIDETCR0, 0xf0);
598 #endif /* CONFIG_PPC */
600 #if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
602 cmd_devs[n_cmd_devs++] = dev;
606 ide_pci_create_host_proc("cmd64x", cmd64x_get_info);
608 #endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_PROC_FS */
613 static unsigned int __devinit ata66_cmd64x(ide_hwif_t *hwif)
615 u8 ata66 = 0, mask = (hwif->channel) ? 0x02 : 0x01;
617 switch(hwif->pci_dev->device) {
618 case PCI_DEVICE_ID_CMD_643:
619 case PCI_DEVICE_ID_CMD_646:
624 pci_read_config_byte(hwif->pci_dev, BMIDECSR, &ata66);
625 return (ata66 & mask) ? 1 : 0;
628 static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif)
630 struct pci_dev *dev = hwif->pci_dev;
631 unsigned int class_rev;
634 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
637 hwif->tuneproc = &cmd64x_tune_drive;
638 hwif->speedproc = &cmd64x_tune_chipset;
640 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
647 hwif->ultra_mask = 0x3f;
648 hwif->mwdma_mask = 0x07;
650 if (dev->device == PCI_DEVICE_ID_CMD_643)
651 hwif->ultra_mask = 0x80;
652 if (dev->device == PCI_DEVICE_ID_CMD_646)
653 hwif->ultra_mask = (class_rev > 0x04) ? 0x07 : 0x80;
654 if (dev->device == PCI_DEVICE_ID_CMD_648)
655 hwif->ultra_mask = 0x1f;
657 hwif->ide_dma_check = &cmd64x_config_drive_for_dma;
658 if (!(hwif->udma_four))
659 hwif->udma_four = ata66_cmd64x(hwif);
661 switch(dev->device) {
662 case PCI_DEVICE_ID_CMD_648:
663 case PCI_DEVICE_ID_CMD_649:
665 hwif->ide_dma_end = &cmd648_ide_dma_end;
666 hwif->ide_dma_test_irq = &cmd648_ide_dma_test_irq;
668 case PCI_DEVICE_ID_CMD_646:
669 hwif->chipset = ide_cmd646;
670 if (class_rev == 0x01) {
671 hwif->ide_dma_end = &cmd646_1_ide_dma_end;
673 } else if (class_rev >= 0x03)
677 hwif->ide_dma_end = &cmd64x_ide_dma_end;
678 hwif->ide_dma_test_irq = &cmd64x_ide_dma_test_irq;
685 hwif->drives[0].autodma = hwif->autodma;
686 hwif->drives[1].autodma = hwif->autodma;
689 static int __devinit init_setup_cmd64x(struct pci_dev *dev, ide_pci_device_t *d)
691 return ide_setup_pci_device(dev, d);
694 static int __devinit init_setup_cmd646(struct pci_dev *dev, ide_pci_device_t *d)
699 * The original PCI0646 didn't have the primary channel enable bit,
700 * it appeared starting with PCI0646U (i.e. revision ID 3).
702 pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
704 d->enablebits[0].reg = 0;
706 return ide_setup_pci_device(dev, d);
709 static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
712 .init_setup = init_setup_cmd64x,
713 .init_chipset = init_chipset_cmd64x,
714 .init_hwif = init_hwif_cmd64x,
717 .enablebits = {{0x00,0x00,0x00}, {0x51,0x08,0x08}},
718 .bootable = ON_BOARD,
721 .init_setup = init_setup_cmd646,
722 .init_chipset = init_chipset_cmd64x,
723 .init_hwif = init_hwif_cmd64x,
726 .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
727 .bootable = ON_BOARD,
730 .init_setup = init_setup_cmd64x,
731 .init_chipset = init_chipset_cmd64x,
732 .init_hwif = init_hwif_cmd64x,
735 .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
736 .bootable = ON_BOARD,
739 .init_setup = init_setup_cmd64x,
740 .init_chipset = init_chipset_cmd64x,
741 .init_hwif = init_hwif_cmd64x,
744 .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
745 .bootable = ON_BOARD,
750 * We may have to modify enablebits for PCI0646, so we'd better pass
751 * a local copy of the ide_pci_device_t structure down the call chain...
753 static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
755 ide_pci_device_t d = cmd64x_chipsets[id->driver_data];
757 return d.init_setup(dev, &d);
760 static struct pci_device_id cmd64x_pci_tbl[] = {
761 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_643, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
762 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
763 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
764 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
767 MODULE_DEVICE_TABLE(pci, cmd64x_pci_tbl);
769 static struct pci_driver driver = {
770 .name = "CMD64x_IDE",
771 .id_table = cmd64x_pci_tbl,
772 .probe = cmd64x_init_one,
775 static int __init cmd64x_ide_init(void)
777 return ide_pci_register_driver(&driver);
780 module_init(cmd64x_ide_init);
782 MODULE_AUTHOR("Eddie Dost, David Miller, Andre Hedrick");
783 MODULE_DESCRIPTION("PCI driver module for CMD64x IDE");
784 MODULE_LICENSE("GPL");