1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
|
/*
* sata_nv.c - NVIDIA nForce SATA
*
* Copyright 2004 NVIDIA Corp. All rights reserved.
* Copyright 2004 Andrew Chew
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* libata documentation is available via 'make {ps|pdf}docs',
* as Documentation/DocBook/libata.*
*
* No hardware documentation available outside of NVIDIA.
* This driver programs the NVIDIA SATA controller in a similar
* fashion as with other PCI IDE BMDMA controllers, with a few
* NV-specific details such as register offsets, SATA phy location,
* hotplug info, etc.
*
* 0.09
* - Fixed bug introduced by 0.08's MCP51 and MCP55 support.
*
* 0.08
* - Added support for MCP51 and MCP55.
*
* 0.07
* - Added support for RAID class code.
*
* 0.06
* - Added generic SATA support by using a pci_device_id that filters on
* the IDE storage class code.
*
* 0.03
* - Fixed a bug where the hotplug handlers for non-CK804/MCP04 were using
* mmio_base, which is only set for the CK804/MCP04 case.
*
* 0.02
* - Added support for CK804 SATA controller.
*
* 0.01
* - Initial revision.
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include <linux/libata.h>
#define DRV_NAME "sata_nv"
#define DRV_VERSION "0.8"
#define NV_PORTS 2
#define NV_PIO_MASK 0x1f
#define NV_MWDMA_MASK 0x07
#define NV_UDMA_MASK 0x7f
#define NV_PORT0_SCR_REG_OFFSET 0x00
#define NV_PORT1_SCR_REG_OFFSET 0x40
#define NV_INT_STATUS 0x10
#define NV_INT_STATUS_CK804 0x440
#define NV_INT_STATUS_PDEV_INT 0x01
#define NV_INT_STATUS_PDEV_PM 0x02
#define NV_INT_STATUS_PDEV_ADDED 0x04
#define NV_INT_STATUS_PDEV_REMOVED 0x08
#define NV_INT_STATUS_SDEV_INT 0x10
#define NV_INT_STATUS_SDEV_PM 0x20
#define NV_INT_STATUS_SDEV_ADDED 0x40
#define NV_INT_STATUS_SDEV_REMOVED 0x80
#define NV_INT_STATUS_PDEV_HOTPLUG (NV_INT_STATUS_PDEV_ADDED | \
NV_INT_STATUS_PDEV_REMOVED)
#define NV_INT_STATUS_SDEV_HOTPLUG (NV_INT_STATUS_SDEV_ADDED | \
NV_INT_STATUS_SDEV_REMOVED)
#define NV_INT_STATUS_HOTPLUG (NV_INT_STATUS_PDEV_HOTPLUG | \
NV_INT_STATUS_SDEV_HOTPLUG)
#define NV_INT_ENABLE 0x11
#define NV_INT_ENABLE_CK804 0x441
#define NV_INT_ENABLE_PDEV_MASK 0x01
#define NV_INT_ENABLE_PDEV_PM 0x02
#define NV_INT_ENABLE_PDEV_ADDED 0x04
#define NV_INT_ENABLE_PDEV_REMOVED 0x08
#define NV_INT_ENABLE_SDEV_MASK 0x10
#define NV_INT_ENABLE_SDEV_PM 0x20
#define NV_INT_ENABLE_SDEV_ADDED 0x40
#define NV_INT_ENABLE_SDEV_REMOVED 0x80
#define NV_INT_ENABLE_PDEV_HOTPLUG (NV_INT_ENABLE_PDEV_ADDED | \
NV_INT_ENABLE_PDEV_REMOVED)
#define NV_INT_ENABLE_SDEV_HOTPLUG (NV_INT_ENABLE_SDEV_ADDED | \
NV_INT_ENABLE_SDEV_REMOVED)
#define NV_INT_ENABLE_HOTPLUG (NV_INT_ENABLE_PDEV_HOTPLUG | \
NV_INT_ENABLE_SDEV_HOTPLUG)
#define NV_INT_CONFIG 0x12
#define NV_INT_CONFIG_METHD 0x01 // 0 = INT, 1 = SMI
// For PCI config register 20
#define NV_MCP_SATA_CFG_20 0x50
#define NV_MCP_SATA_CFG_20_SATA_SPACE_EN 0x04
static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static irqreturn_t nv_interrupt (int irq, void *dev_instance,
struct pt_regs *regs);
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static void nv_host_stop (struct ata_host_set *host_set);
static void nv_enable_hotplug(struct ata_probe_ent *probe_ent);
static void nv_disable_hotplug(struct ata_host_set *host_set);
static void nv_check_hotplug(struct ata_host_set *host_set);
static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent);
static void nv_disable_hotplug_ck804(struct ata_host_set *host_set);
static void nv_check_hotplug_ck804(struct ata_host_set *host_set);
enum nv_host_type
{
GENERIC,
NFORCE2,
NFORCE3,
CK804
};
static struct pci_device_id nv_pci_tbl[] = {
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE2 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID<<8, 0xffff00, GENERIC },
{ 0, } /* terminate list */
};
#define NV_HOST_FLAGS_SCR_MMIO 0x00000001
struct nv_host_desc
{
enum nv_host_type host_type;
void (*enable_hotplug)(struct ata_probe_ent *probe_ent);
void (*disable_hotplug)(struct ata_host_set *host_set);
void (*check_hotplug)(struct ata_host_set *host_set);
};
static struct nv_host_desc nv_device_tbl[] = {
{
.host_type = GENERIC,
.enable_hotplug = NULL,
.disable_hotplug= NULL,
.check_hotplug = NULL,
},
{
.host_type = NFORCE2,
.enable_hotplug = nv_enable_hotplug,
.disable_hotplug= nv_disable_hotplug,
.check_hotplug = nv_check_hotplug,
},
{
.host_type = NFORCE3,
.enable_hotplug = nv_enable_hotplug,
.disable_hotplug= nv_disable_hotplug,
.check_hotplug = nv_check_hotplug,
},
{ .host_type = CK804,
.enable_hotplug = nv_enable_hotplug_ck804,
.disable_hotplug= nv_disable_hotplug_ck804,
.check_hotplug = nv_check_hotplug_ck804,
},
};
struct nv_host
{
struct nv_host_desc *host_desc;
unsigned long host_flags;
};
static struct pci_driver nv_pci_driver = {
.name = DRV_NAME,
.id_table = nv_pci_tbl,
.probe = nv_init_one,
.remove = ata_pci_remove_one,
};
static Scsi_Host_Template nv_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
.eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
.max_sectors = ATA_MAX_SECTORS,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = ATA_SHT_USE_CLUSTERING,
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
.bios_param = ata_std_bios_param,
.ordered_flush = 1,
};
static const struct ata_port_operations nv_ops = {
.port_disable = ata_port_disable,
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.exec_command = ata_exec_command,
.check_status = ata_check_status,
.dev_select = ata_std_dev_select,
.phy_reset = sata_phy_reset,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.irq_handler = nv_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.scr_read = nv_scr_read,
.scr_write = nv_scr_write,
.port_start = ata_port_start,
.port_stop = ata_port_stop,
.host_stop = nv_host_stop,
};
/* FIXME: The hardware provides the necessary SATA PHY controls
* to support ATA_FLAG_SATA_RESET. However, it is currently
* necessary to disable that flag, to solve misdetection problems.
* See http://bugme.osdl.org/show_bug.cgi?id=3352 for more info.
*
* This problem really needs to be investigated further. But in the
* meantime, we avoid ATA_FLAG_SATA_RESET to get people working.
*/
static struct ata_port_info nv_port_info = {
.sht = &nv_sht,
.host_flags = ATA_FLAG_SATA |
/* ATA_FLAG_SATA_RESET | */
ATA_FLAG_SRST |
ATA_FLAG_NO_LEGACY,
.pio_mask = NV_PIO_MASK,
.mwdma_mask = NV_MWDMA_MASK,
.udma_mask = NV_UDMA_MASK,
.port_ops = &nv_ops,
};
MODULE_AUTHOR("NVIDIA");
MODULE_DESCRIPTION("low-level driver for NVIDIA nForce SATA controller");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, nv_pci_tbl);
MODULE_VERSION(DRV_VERSION);
static irqreturn_t nv_interrupt (int irq, void *dev_instance,
struct pt_regs *regs)
{
struct ata_host_set *host_set = dev_instance;
struct nv_host *host = host_set->private_data;
unsigned int i;
unsigned int handled = 0;
unsigned long flags;
spin_lock_irqsave(&host_set->lock, flags);
for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap;
ap = host_set->ports[i];
if (ap &&
!(ap->flags & ATA_FLAG_PORT_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled += ata_host_intr(ap, qc);
}
}
if (host->host_desc->check_hotplug)
host->host_desc->check_hotplug(host_set);
spin_unlock_irqrestore(&host_set->lock, flags);
return IRQ_RETVAL(handled);
}
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
struct ata_host_set *host_set = ap->host_set;
struct nv_host *host = host_set->private_data;
if (sc_reg > SCR_CONTROL)
return 0xffffffffU;
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO)
return readl((void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4));
else
return inl(ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
struct ata_host_set *host_set = ap->host_set;
struct nv_host *host = host_set->private_data;
if (sc_reg > SCR_CONTROL)
return;
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO)
writel(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4));
else
outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void nv_host_stop (struct ata_host_set *host_set)
{
struct nv_host *host = host_set->private_data;
struct pci_dev *pdev = to_pci_dev(host_set->dev);
// Disable hotplug event interrupts.
if (host->host_desc->disable_hotplug)
host->host_desc->disable_hotplug(host_set);
kfree(host);
if (host_set->mmio_base)
pci_iounmap(pdev, host_set->mmio_base);
}
static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version = 0;
struct nv_host *host;
struct ata_port_info *ppi;
struct ata_probe_ent *probe_ent;
int pci_dev_busy = 0;
int rc;
u32 bar;
// Make sure this is a SATA controller by counting the number of bars
// (NVIDIA SATA controllers will always have six bars). Otherwise,
// it's an IDE controller and we ignore it.
for (bar=0; bar<6; bar++)
if (pci_resource_start(pdev, bar) == 0)
return -ENODEV;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
rc = pci_enable_device(pdev);
if (rc)
goto err_out;
rc = pci_request_regions(pdev, DRV_NAME);
if (rc) {
pci_dev_busy = 1;
goto err_out_disable;
}
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
goto err_out_regions;
rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
goto err_out_regions;
rc = -ENOMEM;
ppi = &nv_port_info;
probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
if (!probe_ent)
goto err_out_regions;
host = kmalloc(sizeof(struct nv_host), GFP_KERNEL);
if (!host)
goto err_out_free_ent;
memset(host, 0, sizeof(struct nv_host));
host->host_desc = &nv_device_tbl[ent->driver_data];
probe_ent->private_data = host;
if (pci_resource_flags(pdev, 5) & IORESOURCE_MEM)
host->host_flags |= NV_HOST_FLAGS_SCR_MMIO;
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) {
unsigned long base;
probe_ent->mmio_base = pci_iomap(pdev, 5, 0);
if (probe_ent->mmio_base == NULL) {
rc = -EIO;
goto err_out_free_host;
}
base = (unsigned long)probe_ent->mmio_base;
probe_ent->port[0].scr_addr =
base + NV_PORT0_SCR_REG_OFFSET;
probe_ent->port[1].scr_addr =
base + NV_PORT1_SCR_REG_OFFSET;
} else {
probe_ent->port[0].scr_addr =
pci_resource_start(pdev, 5) | NV_PORT0_SCR_REG_OFFSET;
probe_ent->port[1].scr_addr =
pci_resource_start(pdev, 5) | NV_PORT1_SCR_REG_OFFSET;
}
pci_set_master(pdev);
rc = ata_device_add(probe_ent);
if (rc != NV_PORTS)
goto err_out_iounmap;
// Enable hotplug event interrupts.
if (host->host_desc->enable_hotplug)
host->host_desc->enable_hotplug(probe_ent);
kfree(probe_ent);
return 0;
err_out_iounmap:
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO)
pci_iounmap(pdev, probe_ent->mmio_base);
err_out_free_host:
kfree(host);
err_out_free_ent:
kfree(probe_ent);
err_out_regions:
pci_release_regions(pdev);
err_out_disable:
if (!pci_dev_busy)
pci_disable_device(pdev);
err_out:
return rc;
}
static void nv_enable_hotplug(struct ata_probe_ent *probe_ent)
{
u8 intr_mask;
outb(NV_INT_STATUS_HOTPLUG,
probe_ent->port[0].scr_addr + NV_INT_STATUS);
intr_mask = inb(probe_ent->port[0].scr_addr + NV_INT_ENABLE);
intr_mask |= NV_INT_ENABLE_HOTPLUG;
outb(intr_mask, probe_ent->port[0].scr_addr + NV_INT_ENABLE);
}
static void nv_disable_hotplug(struct ata_host_set *host_set)
{
u8 intr_mask;
intr_mask = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE);
intr_mask &= ~(NV_INT_ENABLE_HOTPLUG);
outb(intr_mask, host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE);
}
static void nv_check_hotplug(struct ata_host_set *host_set)
{
u8 intr_status;
intr_status = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS);
// Clear interrupt status.
outb(0xff, host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS);
if (intr_status & NV_INT_STATUS_HOTPLUG) {
if (intr_status & NV_INT_STATUS_PDEV_ADDED)
printk(KERN_WARNING "nv_sata: "
"Primary device added\n");
if (intr_status & NV_INT_STATUS_PDEV_REMOVED)
printk(KERN_WARNING "nv_sata: "
"Primary device removed\n");
if (intr_status & NV_INT_STATUS_SDEV_ADDED)
printk(KERN_WARNING "nv_sata: "
"Secondary device added\n");
if (intr_status & NV_INT_STATUS_SDEV_REMOVED)
printk(KERN_WARNING "nv_sata: "
"Secondary device removed\n");
}
}
static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent)
{
struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
u8 intr_mask;
u8 regval;
pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val);
regval |= NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
writeb(NV_INT_STATUS_HOTPLUG, probe_ent->mmio_base + NV_INT_STATUS_CK804);
intr_mask = readb(probe_ent->mmio_base + NV_INT_ENABLE_CK804);
intr_mask |= NV_INT_ENABLE_HOTPLUG;
writeb(intr_mask, probe_ent->mmio_base + NV_INT_ENABLE_CK804);
}
static void nv_disable_hotplug_ck804(struct ata_host_set *host_set)
{
struct pci_dev *pdev = to_pci_dev(host_set->dev);
u8 intr_mask;
u8 regval;
intr_mask = readb(host_set->mmio_base + NV_INT_ENABLE_CK804);
intr_mask &= ~(NV_INT_ENABLE_HOTPLUG);
writeb(intr_mask, host_set->mmio_base + NV_INT_ENABLE_CK804);
pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val);
regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
}
static void nv_check_hotplug_ck804(struct ata_host_set *host_set)
{
u8 intr_status;
intr_status = readb(host_set->mmio_base + NV_INT_STATUS_CK804);
// Clear interrupt status.
writeb(0xff, host_set->mmio_base + NV_INT_STATUS_CK804);
if (intr_status & NV_INT_STATUS_HOTPLUG) {
if (intr_status & NV_INT_STATUS_PDEV_ADDED)
printk(KERN_WARNING "nv_sata: "
"Primary device added\n");
if (intr_status & NV_INT_STATUS_PDEV_REMOVED)
printk(KERN_WARNING "nv_sata: "
"Primary device removed\n");
if (intr_status & NV_INT_STATUS_SDEV_ADDED)
printk(KERN_WARNING "nv_sata: "
"Secondary device added\n");
if (intr_status & NV_INT_STATUS_SDEV_REMOVED)
printk(KERN_WARNING "nv_sata: "
"Secondary device removed\n");
}
}
static int __init nv_init(void)
{
return pci_module_init(&nv_pci_driver);
}
static void __exit nv_exit(void)
{
pci_unregister_driver(&nv_pci_driver);
}
module_init(nv_init);
module_exit(nv_exit);
|