2 * pata_sis.c - SiS ATA driver
4 * (C) 2005 Red Hat <alan@redhat.com>
6 * Based upon linux/drivers/ide/pci/sis5513.c
7 * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
8 * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
9 * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
10 * SiS Taiwan : for direct support and hardware.
11 * Daniela Engert : for initial ATA100 advices and numerous others.
12 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
13 * for checking code correctness, providing patches.
14 * Original tests and design on the SiS620 chipset.
15 * ATA100 tests and design on the SiS735 chipset.
16 * ATA16/33 support from specs
17 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
21 * Check MWDMA on drives that don't support MWDMA speed pio cycles ?
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/pci.h>
28 #include <linux/init.h>
29 #include <linux/blkdev.h>
30 #include <linux/delay.h>
31 #include <linux/device.h>
32 #include <scsi/scsi_host.h>
33 #include <linux/libata.h>
34 #include <linux/ata.h>
37 #define DRV_NAME "pata_sis"
38 #define DRV_VERSION "0.4.5"
41 u16 device
; /* PCI host ID */
42 struct ata_port_info
*info
; /* Info block */
43 /* Probably add family, cable detect type etc here to clean
53 static const struct sis_laptop sis_laptop
[] = {
54 /* devid, subvendor, subdev */
55 { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
60 static int sis_short_ata40(struct pci_dev
*dev
)
62 const struct sis_laptop
*lap
= &sis_laptop
[0];
65 if (lap
->device
== dev
->device
&&
66 lap
->subvendor
== dev
->subsystem_vendor
&&
67 lap
->subdevice
== dev
->subsystem_device
)
76 * sis_port_base - return PCI configuration base for dev
79 * Returns the base of the PCI configuration registers for this port
83 static int sis_port_base(struct ata_device
*adev
)
85 return 0x40 + (4 * adev
->ap
->port_no
) + (2 * adev
->devno
);
89 * sis_133_pre_reset - check for 40/80 pin
92 * Perform cable detection for the later UDMA133 capable
96 static int sis_133_pre_reset(struct ata_port
*ap
)
98 static const struct pci_bits sis_enable_bits
[] = {
99 { 0x4aU
, 1U, 0x02UL
, 0x02UL
}, /* port 0 */
100 { 0x4aU
, 1U, 0x04UL
, 0x04UL
}, /* port 1 */
103 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
106 if (!pci_test_config_bits(pdev
, &sis_enable_bits
[ap
->port_no
]))
109 /* The top bit of this register is the cable detect bit */
110 pci_read_config_word(pdev
, 0x50 + 2 * ap
->port_no
, &tmp
);
111 if ((tmp
& 0x8000) && !sis_short_ata40(pdev
))
112 ap
->cbl
= ATA_CBL_PATA40
;
114 ap
->cbl
= ATA_CBL_PATA80
;
116 return ata_std_prereset(ap
);
120 * sis_error_handler - Probe specified port on PATA host controller
124 * None (inherited from caller).
127 static void sis_133_error_handler(struct ata_port
*ap
)
129 ata_bmdma_drive_eh(ap
, sis_133_pre_reset
, ata_std_softreset
, NULL
, ata_std_postreset
);
134 * sis_66_pre_reset - check for 40/80 pin
137 * Perform cable detection on the UDMA66, UDMA100 and early UDMA133
138 * SiS IDE controllers.
141 static int sis_66_pre_reset(struct ata_port
*ap
)
143 static const struct pci_bits sis_enable_bits
[] = {
144 { 0x4aU
, 1U, 0x02UL
, 0x02UL
}, /* port 0 */
145 { 0x4aU
, 1U, 0x04UL
, 0x04UL
}, /* port 1 */
148 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
151 if (!pci_test_config_bits(pdev
, &sis_enable_bits
[ap
->port_no
])) {
152 ata_port_disable(ap
);
153 ata_port_printk(ap
, KERN_INFO
, "port disabled. ignoring.\n");
156 /* Older chips keep cable detect in bits 4/5 of reg 0x48 */
157 pci_read_config_byte(pdev
, 0x48, &tmp
);
159 if ((tmp
& 0x10) && !sis_short_ata40(pdev
))
160 ap
->cbl
= ATA_CBL_PATA40
;
162 ap
->cbl
= ATA_CBL_PATA80
;
164 return ata_std_prereset(ap
);
168 * sis_66_error_handler - Probe specified port on PATA host controller
173 * None (inherited from caller).
176 static void sis_66_error_handler(struct ata_port
*ap
)
178 ata_bmdma_drive_eh(ap
, sis_66_pre_reset
, ata_std_softreset
, NULL
, ata_std_postreset
);
182 * sis_old_pre_reset - probe begin
185 * Set up cable type and use generic probe init
188 static int sis_old_pre_reset(struct ata_port
*ap
)
190 static const struct pci_bits sis_enable_bits
[] = {
191 { 0x4aU
, 1U, 0x02UL
, 0x02UL
}, /* port 0 */
192 { 0x4aU
, 1U, 0x04UL
, 0x04UL
}, /* port 1 */
195 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
197 if (!pci_test_config_bits(pdev
, &sis_enable_bits
[ap
->port_no
])) {
198 ata_port_disable(ap
);
199 ata_port_printk(ap
, KERN_INFO
, "port disabled. ignoring.\n");
202 ap
->cbl
= ATA_CBL_PATA40
;
203 return ata_std_prereset(ap
);
208 * sis_old_error_handler - Probe specified port on PATA host controller
212 * None (inherited from caller).
215 static void sis_old_error_handler(struct ata_port
*ap
)
217 ata_bmdma_drive_eh(ap
, sis_old_pre_reset
, ata_std_softreset
, NULL
, ata_std_postreset
);
221 * sis_set_fifo - Set RWP fifo bits for this device
225 * SIS chipsets implement prefetch/postwrite bits for each device
226 * on both channels. This functionality is not ATAPI compatible and
227 * must be configured according to the class of device present
230 static void sis_set_fifo(struct ata_port
*ap
, struct ata_device
*adev
)
232 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
236 mask
<<= (2 * ap
->port_no
);
237 mask
<<= adev
->devno
;
239 /* This holds various bits including the FIFO control */
240 pci_read_config_byte(pdev
, 0x4B, &fifoctrl
);
243 /* Enable for ATA (disk) only */
244 if (adev
->class == ATA_DEV_ATA
)
246 pci_write_config_byte(pdev
, 0x4B, fifoctrl
);
250 * sis_old_set_piomode - Initialize host controller PATA PIO timings
251 * @ap: Port whose timings we are configuring
252 * @adev: Device we are configuring for.
254 * Set PIO mode for device, in host controller PCI config space. This
255 * function handles PIO set up for all chips that are pre ATA100 and
256 * also early ATA100 devices.
259 * None (inherited from caller).
262 static void sis_old_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
264 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
265 int port
= sis_port_base(adev
);
267 int speed
= adev
->pio_mode
- XFER_PIO_0
;
269 const u8 active
[] = { 0x00, 0x07, 0x04, 0x03, 0x01 };
270 const u8 recovery
[] = { 0x00, 0x06, 0x04, 0x03, 0x03 };
272 sis_set_fifo(ap
, adev
);
274 pci_read_config_byte(pdev
, port
, &t1
);
275 pci_read_config_byte(pdev
, port
+ 1, &t2
);
277 t1
&= ~0x0F; /* Clear active/recovery timings */
281 t2
|= recovery
[speed
];
283 pci_write_config_byte(pdev
, port
, t1
);
284 pci_write_config_byte(pdev
, port
+ 1, t2
);
288 * sis_100_set_pioode - Initialize host controller PATA PIO timings
289 * @ap: Port whose timings we are configuring
290 * @adev: Device we are configuring for.
292 * Set PIO mode for device, in host controller PCI config space. This
293 * function handles PIO set up for ATA100 devices and early ATA133.
296 * None (inherited from caller).
299 static void sis_100_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
301 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
302 int port
= sis_port_base(adev
);
303 int speed
= adev
->pio_mode
- XFER_PIO_0
;
305 const u8 actrec
[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
307 sis_set_fifo(ap
, adev
);
309 pci_write_config_byte(pdev
, port
, actrec
[speed
]);
313 * sis_133_set_pioode - Initialize host controller PATA PIO timings
314 * @ap: Port whose timings we are configuring
315 * @adev: Device we are configuring for.
317 * Set PIO mode for device, in host controller PCI config space. This
318 * function handles PIO set up for the later ATA133 devices.
321 * None (inherited from caller).
324 static void sis_133_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
326 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
330 int speed
= adev
->pio_mode
- XFER_PIO_0
;
332 const u32 timing133
[] = {
333 0x28269000, /* Recovery << 24 | Act << 16 | Ini << 12 */
339 const u32 timing100
[] = {
340 0x1E1C6000, /* Recovery << 24 | Act << 16 | Ini << 12 */
347 sis_set_fifo(ap
, adev
);
349 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
350 pci_read_config_dword(pdev
, 0x54, ®54
);
351 if (reg54
& 0x40000000)
353 port
+= 8 * ap
->port_no
+ 4 * adev
->devno
;
355 pci_read_config_dword(pdev
, port
, &t1
);
356 t1
&= 0xC0C00FFF; /* Mask out timing */
358 if (t1
& 0x08) /* 100 or 133 ? */
359 t1
|= timing133
[speed
];
361 t1
|= timing100
[speed
];
362 pci_write_config_byte(pdev
, port
, t1
);
366 * sis_old_set_dmamode - Initialize host controller PATA DMA timings
367 * @ap: Port whose timings we are configuring
368 * @adev: Device to program
370 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
371 * Handles pre UDMA and UDMA33 devices. Supports MWDMA as well unlike
372 * the old ide/pci driver.
375 * None (inherited from caller).
378 static void sis_old_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
380 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
381 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
382 int drive_pci
= sis_port_base(adev
);
385 const u16 mwdma_bits
[] = { 0x707, 0x202, 0x202 };
386 const u16 udma_bits
[] = { 0xE000, 0xC000, 0xA000 };
388 pci_read_config_word(pdev
, drive_pci
, &timing
);
390 if (adev
->dma_mode
< XFER_UDMA_0
) {
391 /* bits 3-0 hold recovery timing bits 8-10 active timing and
392 the higer bits are dependant on the device */
394 timing
|= mwdma_bits
[speed
];
395 pci_write_config_word(pdev
, drive_pci
, timing
);
397 /* Bit 15 is UDMA on/off, bit 13-14 are cycle time */
398 speed
= adev
->dma_mode
- XFER_UDMA_0
;
400 timing
|= udma_bits
[speed
];
405 * sis_66_set_dmamode - Initialize host controller PATA DMA timings
406 * @ap: Port whose timings we are configuring
407 * @adev: Device to program
409 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
410 * Handles UDMA66 and early UDMA100 devices. Supports MWDMA as well unlike
411 * the old ide/pci driver.
414 * None (inherited from caller).
417 static void sis_66_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
419 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
420 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
421 int drive_pci
= sis_port_base(adev
);
424 const u16 mwdma_bits
[] = { 0x707, 0x202, 0x202 };
425 const u16 udma_bits
[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000};
427 pci_read_config_word(pdev
, drive_pci
, &timing
);
429 if (adev
->dma_mode
< XFER_UDMA_0
) {
430 /* bits 3-0 hold recovery timing bits 8-10 active timing and
431 the higer bits are dependant on the device, bit 15 udma */
433 timing
|= mwdma_bits
[speed
];
435 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
436 speed
= adev
->dma_mode
- XFER_UDMA_0
;
438 timing
|= udma_bits
[speed
];
440 pci_write_config_word(pdev
, drive_pci
, timing
);
444 * sis_100_set_dmamode - Initialize host controller PATA DMA timings
445 * @ap: Port whose timings we are configuring
446 * @adev: Device to program
448 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
449 * Handles UDMA66 and early UDMA100 devices.
452 * None (inherited from caller).
455 static void sis_100_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
457 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
458 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
459 int drive_pci
= sis_port_base(adev
);
462 const u16 udma_bits
[] = { 0x8B00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
464 pci_read_config_word(pdev
, drive_pci
, &timing
);
466 if (adev
->dma_mode
< XFER_UDMA_0
) {
467 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
469 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
470 speed
= adev
->dma_mode
- XFER_UDMA_0
;
472 timing
|= udma_bits
[speed
];
474 pci_write_config_word(pdev
, drive_pci
, timing
);
478 * sis_133_early_set_dmamode - Initialize host controller PATA DMA timings
479 * @ap: Port whose timings we are configuring
480 * @adev: Device to program
482 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
483 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
484 * the old ide/pci driver.
487 * None (inherited from caller).
490 static void sis_133_early_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
492 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
493 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
494 int drive_pci
= sis_port_base(adev
);
497 const u16 udma_bits
[] = { 0x8F00, 0x8A00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
499 pci_read_config_word(pdev
, drive_pci
, &timing
);
501 if (adev
->dma_mode
< XFER_UDMA_0
) {
502 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
504 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
505 speed
= adev
->dma_mode
- XFER_UDMA_0
;
507 timing
|= udma_bits
[speed
];
509 pci_write_config_word(pdev
, drive_pci
, timing
);
513 * sis_133_set_dmamode - Initialize host controller PATA DMA timings
514 * @ap: Port whose timings we are configuring
515 * @adev: Device to program
517 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
518 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
519 * the old ide/pci driver.
522 * None (inherited from caller).
525 static void sis_133_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
527 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
528 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
533 /* bits 4- cycle time 8 - cvs time */
534 const u32 timing_u100
[] = { 0x6B0, 0x470, 0x350, 0x140, 0x120, 0x110, 0x000 };
535 const u32 timing_u133
[] = { 0x9F0, 0x6A0, 0x470, 0x250, 0x230, 0x220, 0x210 };
537 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
538 pci_read_config_dword(pdev
, 0x54, ®54
);
539 if (reg54
& 0x40000000)
541 port
+= (8 * ap
->port_no
) + (4 * adev
->devno
);
543 pci_read_config_dword(pdev
, port
, &t1
);
545 if (adev
->dma_mode
< XFER_UDMA_0
) {
547 /* FIXME: need data sheet to add MWDMA here. Also lacking on
550 speed
= adev
->dma_mode
- XFER_UDMA_0
;
551 /* if & 8 no UDMA133 - need info for ... */
555 t1
|= timing_u133
[speed
];
557 t1
|= timing_u100
[speed
];
559 pci_write_config_dword(pdev
, port
, t1
);
562 static struct scsi_host_template sis_sht
= {
563 .module
= THIS_MODULE
,
565 .ioctl
= ata_scsi_ioctl
,
566 .queuecommand
= ata_scsi_queuecmd
,
567 .can_queue
= ATA_DEF_QUEUE
,
568 .this_id
= ATA_SHT_THIS_ID
,
569 .sg_tablesize
= LIBATA_MAX_PRD
,
570 .cmd_per_lun
= ATA_SHT_CMD_PER_LUN
,
571 .emulated
= ATA_SHT_EMULATED
,
572 .use_clustering
= ATA_SHT_USE_CLUSTERING
,
573 .proc_name
= DRV_NAME
,
574 .dma_boundary
= ATA_DMA_BOUNDARY
,
575 .slave_configure
= ata_scsi_slave_config
,
576 .slave_destroy
= ata_scsi_slave_destroy
,
577 .bios_param
= ata_std_bios_param
,
578 .resume
= ata_scsi_device_resume
,
579 .suspend
= ata_scsi_device_suspend
,
582 static const struct ata_port_operations sis_133_ops
= {
583 .port_disable
= ata_port_disable
,
584 .set_piomode
= sis_133_set_piomode
,
585 .set_dmamode
= sis_133_set_dmamode
,
586 .mode_filter
= ata_pci_default_filter
,
588 .tf_load
= ata_tf_load
,
589 .tf_read
= ata_tf_read
,
590 .check_status
= ata_check_status
,
591 .exec_command
= ata_exec_command
,
592 .dev_select
= ata_std_dev_select
,
594 .freeze
= ata_bmdma_freeze
,
595 .thaw
= ata_bmdma_thaw
,
596 .error_handler
= sis_133_error_handler
,
597 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
599 .bmdma_setup
= ata_bmdma_setup
,
600 .bmdma_start
= ata_bmdma_start
,
601 .bmdma_stop
= ata_bmdma_stop
,
602 .bmdma_status
= ata_bmdma_status
,
603 .qc_prep
= ata_qc_prep
,
604 .qc_issue
= ata_qc_issue_prot
,
605 .data_xfer
= ata_data_xfer
,
607 .irq_handler
= ata_interrupt
,
608 .irq_clear
= ata_bmdma_irq_clear
,
609 .irq_on
= ata_irq_on
,
610 .irq_ack
= ata_irq_ack
,
612 .port_start
= ata_port_start
,
615 static const struct ata_port_operations sis_133_early_ops
= {
616 .port_disable
= ata_port_disable
,
617 .set_piomode
= sis_100_set_piomode
,
618 .set_dmamode
= sis_133_early_set_dmamode
,
619 .mode_filter
= ata_pci_default_filter
,
621 .tf_load
= ata_tf_load
,
622 .tf_read
= ata_tf_read
,
623 .check_status
= ata_check_status
,
624 .exec_command
= ata_exec_command
,
625 .dev_select
= ata_std_dev_select
,
627 .freeze
= ata_bmdma_freeze
,
628 .thaw
= ata_bmdma_thaw
,
629 .error_handler
= sis_66_error_handler
,
630 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
632 .bmdma_setup
= ata_bmdma_setup
,
633 .bmdma_start
= ata_bmdma_start
,
634 .bmdma_stop
= ata_bmdma_stop
,
635 .bmdma_status
= ata_bmdma_status
,
636 .qc_prep
= ata_qc_prep
,
637 .qc_issue
= ata_qc_issue_prot
,
638 .data_xfer
= ata_data_xfer
,
640 .irq_handler
= ata_interrupt
,
641 .irq_clear
= ata_bmdma_irq_clear
,
642 .irq_on
= ata_irq_on
,
643 .irq_ack
= ata_irq_ack
,
645 .port_start
= ata_port_start
,
648 static const struct ata_port_operations sis_100_ops
= {
649 .port_disable
= ata_port_disable
,
650 .set_piomode
= sis_100_set_piomode
,
651 .set_dmamode
= sis_100_set_dmamode
,
652 .mode_filter
= ata_pci_default_filter
,
654 .tf_load
= ata_tf_load
,
655 .tf_read
= ata_tf_read
,
656 .check_status
= ata_check_status
,
657 .exec_command
= ata_exec_command
,
658 .dev_select
= ata_std_dev_select
,
660 .freeze
= ata_bmdma_freeze
,
661 .thaw
= ata_bmdma_thaw
,
662 .error_handler
= sis_66_error_handler
,
663 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
666 .bmdma_setup
= ata_bmdma_setup
,
667 .bmdma_start
= ata_bmdma_start
,
668 .bmdma_stop
= ata_bmdma_stop
,
669 .bmdma_status
= ata_bmdma_status
,
670 .qc_prep
= ata_qc_prep
,
671 .qc_issue
= ata_qc_issue_prot
,
672 .data_xfer
= ata_data_xfer
,
674 .irq_handler
= ata_interrupt
,
675 .irq_clear
= ata_bmdma_irq_clear
,
676 .irq_on
= ata_irq_on
,
677 .irq_ack
= ata_irq_ack
,
679 .port_start
= ata_port_start
,
682 static const struct ata_port_operations sis_66_ops
= {
683 .port_disable
= ata_port_disable
,
684 .set_piomode
= sis_old_set_piomode
,
685 .set_dmamode
= sis_66_set_dmamode
,
686 .mode_filter
= ata_pci_default_filter
,
688 .tf_load
= ata_tf_load
,
689 .tf_read
= ata_tf_read
,
690 .check_status
= ata_check_status
,
691 .exec_command
= ata_exec_command
,
692 .dev_select
= ata_std_dev_select
,
694 .freeze
= ata_bmdma_freeze
,
695 .thaw
= ata_bmdma_thaw
,
696 .error_handler
= sis_66_error_handler
,
697 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
699 .bmdma_setup
= ata_bmdma_setup
,
700 .bmdma_start
= ata_bmdma_start
,
701 .bmdma_stop
= ata_bmdma_stop
,
702 .bmdma_status
= ata_bmdma_status
,
703 .qc_prep
= ata_qc_prep
,
704 .qc_issue
= ata_qc_issue_prot
,
705 .data_xfer
= ata_data_xfer
,
707 .irq_handler
= ata_interrupt
,
708 .irq_clear
= ata_bmdma_irq_clear
,
709 .irq_on
= ata_irq_on
,
710 .irq_ack
= ata_irq_ack
,
712 .port_start
= ata_port_start
,
715 static const struct ata_port_operations sis_old_ops
= {
716 .port_disable
= ata_port_disable
,
717 .set_piomode
= sis_old_set_piomode
,
718 .set_dmamode
= sis_old_set_dmamode
,
719 .mode_filter
= ata_pci_default_filter
,
721 .tf_load
= ata_tf_load
,
722 .tf_read
= ata_tf_read
,
723 .check_status
= ata_check_status
,
724 .exec_command
= ata_exec_command
,
725 .dev_select
= ata_std_dev_select
,
727 .freeze
= ata_bmdma_freeze
,
728 .thaw
= ata_bmdma_thaw
,
729 .error_handler
= sis_old_error_handler
,
730 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
732 .bmdma_setup
= ata_bmdma_setup
,
733 .bmdma_start
= ata_bmdma_start
,
734 .bmdma_stop
= ata_bmdma_stop
,
735 .bmdma_status
= ata_bmdma_status
,
736 .qc_prep
= ata_qc_prep
,
737 .qc_issue
= ata_qc_issue_prot
,
738 .data_xfer
= ata_data_xfer
,
740 .irq_handler
= ata_interrupt
,
741 .irq_clear
= ata_bmdma_irq_clear
,
742 .irq_on
= ata_irq_on
,
743 .irq_ack
= ata_irq_ack
,
745 .port_start
= ata_port_start
,
748 static struct ata_port_info sis_info
= {
750 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
751 .pio_mask
= 0x1f, /* pio0-4 */
754 .port_ops
= &sis_old_ops
,
756 static struct ata_port_info sis_info33
= {
758 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
759 .pio_mask
= 0x1f, /* pio0-4 */
761 .udma_mask
= ATA_UDMA2
, /* UDMA 33 */
762 .port_ops
= &sis_old_ops
,
764 static struct ata_port_info sis_info66
= {
766 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
767 .pio_mask
= 0x1f, /* pio0-4 */
768 .udma_mask
= ATA_UDMA4
, /* UDMA 66 */
769 .port_ops
= &sis_66_ops
,
771 static struct ata_port_info sis_info100
= {
773 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
774 .pio_mask
= 0x1f, /* pio0-4 */
775 .udma_mask
= ATA_UDMA5
,
776 .port_ops
= &sis_100_ops
,
778 static struct ata_port_info sis_info100_early
= {
780 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
781 .udma_mask
= ATA_UDMA5
,
782 .pio_mask
= 0x1f, /* pio0-4 */
783 .port_ops
= &sis_66_ops
,
785 struct ata_port_info sis_info133
= {
787 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
788 .pio_mask
= 0x1f, /* pio0-4 */
789 .udma_mask
= ATA_UDMA6
,
790 .port_ops
= &sis_133_ops
,
792 static struct ata_port_info sis_info133_early
= {
794 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
795 .pio_mask
= 0x1f, /* pio0-4 */
796 .udma_mask
= ATA_UDMA6
,
797 .port_ops
= &sis_133_early_ops
,
800 /* Privately shared with the SiS180 SATA driver, not for use elsewhere */
801 EXPORT_SYMBOL_GPL(sis_info133
);
803 static void sis_fixup(struct pci_dev
*pdev
, struct sis_chipset
*sis
)
808 if (sis
->info
== &sis_info133
) {
809 pci_read_config_word(pdev
, 0x50, ®w
);
811 pci_write_config_word(pdev
, 0x50, regw
& ~0x08);
812 pci_read_config_word(pdev
, 0x52, ®w
);
814 pci_write_config_word(pdev
, 0x52, regw
& ~0x08);
818 if (sis
->info
== &sis_info133_early
|| sis
->info
== &sis_info100
) {
820 pci_write_config_byte(pdev
, PCI_LATENCY_TIMER
, 0x80);
821 /* Set compatibility bit */
822 pci_read_config_byte(pdev
, 0x49, ®
);
824 pci_write_config_byte(pdev
, 0x49, reg
| 0x01);
828 if (sis
->info
== &sis_info66
|| sis
->info
== &sis_info100_early
) {
830 pci_write_config_byte(pdev
, PCI_LATENCY_TIMER
, 0x80);
831 /* Set compatibility bit */
832 pci_read_config_byte(pdev
, 0x52, ®
);
834 pci_write_config_byte(pdev
, 0x52, reg
| 0x04);
838 if (sis
->info
== &sis_info33
) {
839 pci_read_config_byte(pdev
, PCI_CLASS_PROG
, ®
);
840 if (( reg
& 0x0F ) != 0x00)
841 pci_write_config_byte(pdev
, PCI_CLASS_PROG
, reg
& 0xF0);
842 /* Fall through to ATA16 fixup below */
845 if (sis
->info
== &sis_info
|| sis
->info
== &sis_info33
) {
846 /* force per drive recovery and active timings
847 needed on ATA_33 and below chips */
848 pci_read_config_byte(pdev
, 0x52, ®
);
850 pci_write_config_byte(pdev
, 0x52, reg
|0x08);
858 * sis_init_one - Register SiS ATA PCI device with kernel services
859 * @pdev: PCI device to register
860 * @ent: Entry in sis_pci_tbl matching with @pdev
862 * Called from kernel PCI layer. We probe for combined mode (sigh),
863 * and then hand over control to libata, for it to do the rest.
866 * Inherited from PCI layer (may sleep).
869 * Zero on success, or -ERRNO value.
872 static int sis_init_one (struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
874 static int printed_version
;
875 static struct ata_port_info
*port_info
[2];
876 struct ata_port_info
*port
;
877 struct pci_dev
*host
= NULL
;
878 struct sis_chipset
*chipset
= NULL
;
880 static struct sis_chipset sis_chipsets
[] = {
882 { 0x0968, &sis_info133
},
883 { 0x0966, &sis_info133
},
884 { 0x0965, &sis_info133
},
885 { 0x0745, &sis_info100
},
886 { 0x0735, &sis_info100
},
887 { 0x0733, &sis_info100
},
888 { 0x0635, &sis_info100
},
889 { 0x0633, &sis_info100
},
891 { 0x0730, &sis_info100_early
}, /* 100 with ATA 66 layout */
892 { 0x0550, &sis_info100_early
}, /* 100 with ATA 66 layout */
894 { 0x0640, &sis_info66
},
895 { 0x0630, &sis_info66
},
896 { 0x0620, &sis_info66
},
897 { 0x0540, &sis_info66
},
898 { 0x0530, &sis_info66
},
900 { 0x5600, &sis_info33
},
901 { 0x5598, &sis_info33
},
902 { 0x5597, &sis_info33
},
903 { 0x5591, &sis_info33
},
904 { 0x5582, &sis_info33
},
905 { 0x5581, &sis_info33
},
907 { 0x5596, &sis_info
},
908 { 0x5571, &sis_info
},
909 { 0x5517, &sis_info
},
910 { 0x5511, &sis_info
},
914 static struct sis_chipset sis133_early
= {
915 0x0, &sis_info133_early
917 static struct sis_chipset sis133
= {
920 static struct sis_chipset sis100_early
= {
921 0x0, &sis_info100_early
923 static struct sis_chipset sis100
= {
927 if (!printed_version
++)
928 dev_printk(KERN_DEBUG
, &pdev
->dev
,
929 "version " DRV_VERSION
"\n");
931 /* We have to find the bridge first */
933 for (chipset
= &sis_chipsets
[0]; chipset
->device
; chipset
++) {
934 host
= pci_get_device(PCI_VENDOR_ID_SI
, chipset
->device
, NULL
);
936 if (chipset
->device
== 0x630) { /* SIS630 */
938 pci_read_config_byte(host
, PCI_REVISION_ID
, &host_rev
);
939 if (host_rev
>= 0x30) /* 630 ET */
940 chipset
= &sis100_early
;
946 /* Look for concealed bridges */
952 /* Disable ID masking and register remapping then
953 see what the real ID is */
955 pci_read_config_dword(pdev
, 0x54, &idemisc
);
956 pci_write_config_dword(pdev
, 0x54, idemisc
& 0x7fffffff);
957 pci_read_config_word(pdev
, PCI_DEVICE_ID
, &trueid
);
958 pci_write_config_dword(pdev
, 0x54, idemisc
);
961 case 0x5518: /* SIS 962/963 */
963 if ((idemisc
& 0x40000000) == 0) {
964 pci_write_config_dword(pdev
, 0x54, idemisc
| 0x40000000);
965 printk(KERN_INFO
"SIS5513: Switching to 5513 register mapping\n");
968 case 0x0180: /* SIS 965/965L */
971 case 0x1180: /* SIS 966/966L */
978 if (chipset
== NULL
) {
979 struct pci_dev
*lpc_bridge
;
985 /* Try the second unmasking technique */
986 pci_read_config_byte(pdev
, 0x4a, &idecfg
);
987 pci_write_config_byte(pdev
, 0x4a, idecfg
| 0x10);
988 pci_read_config_word(pdev
, PCI_DEVICE_ID
, &trueid
);
989 pci_write_config_byte(pdev
, 0x4a, idecfg
);
993 lpc_bridge
= pci_get_slot(pdev
->bus
, 0x10); /* Bus 0 Dev 2 Fn 0 */
994 if (lpc_bridge
== NULL
)
996 pci_read_config_byte(lpc_bridge
, PCI_REVISION_ID
, &sbrev
);
997 pci_read_config_byte(pdev
, 0x49, &prefctl
);
998 pci_dev_put(lpc_bridge
);
1000 if (sbrev
== 0x10 && (prefctl
& 0x80)) {
1001 chipset
= &sis133_early
;
1010 /* No chipset info, no support */
1011 if (chipset
== NULL
)
1014 port
= chipset
->info
;
1015 port
->private_data
= chipset
;
1017 sis_fixup(pdev
, chipset
);
1019 port_info
[0] = port_info
[1] = port
;
1020 return ata_pci_init_one(pdev
, port_info
, 2);
1023 static const struct pci_device_id sis_pci_tbl
[] = {
1024 { PCI_VDEVICE(SI
, 0x5513), }, /* SiS 5513 */
1025 { PCI_VDEVICE(SI
, 0x5518), }, /* SiS 5518 */
1030 static struct pci_driver sis_pci_driver
= {
1032 .id_table
= sis_pci_tbl
,
1033 .probe
= sis_init_one
,
1034 .remove
= ata_pci_remove_one
,
1035 .suspend
= ata_pci_device_suspend
,
1036 .resume
= ata_pci_device_resume
,
1039 static int __init
sis_init(void)
1041 return pci_register_driver(&sis_pci_driver
);
1044 static void __exit
sis_exit(void)
1046 pci_unregister_driver(&sis_pci_driver
);
1049 module_init(sis_init
);
1050 module_exit(sis_exit
);
1052 MODULE_AUTHOR("Alan Cox");
1053 MODULE_DESCRIPTION("SCSI low-level driver for SiS ATA");
1054 MODULE_LICENSE("GPL");
1055 MODULE_DEVICE_TABLE(pci
, sis_pci_tbl
);
1056 MODULE_VERSION(DRV_VERSION
);