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[PKT_SCHED] ematch: oops from uninitialized variable (resend)
[linux-2.6/kvm.git] / drivers / ata / pata_icside.c
blob5b8586dac63b155e974ab950292d501fc5fffcab
1 #include <linux/kernel.h>
2 #include <linux/module.h>
3 #include <linux/init.h>
4 #include <linux/blkdev.h>
5 #include <scsi/scsi_host.h>
6 #include <linux/ata.h>
7 #include <linux/libata.h>
8
9 #include <asm/dma.h>
10 #include <asm/ecard.h>
11
12 #define DRV_NAME "pata_icside"
13
14 #define ICS_IDENT_OFFSET 0x2280
15
16 #define ICS_ARCIN_V5_INTRSTAT 0x0000
17 #define ICS_ARCIN_V5_INTROFFSET 0x0004
18
19 #define ICS_ARCIN_V6_INTROFFSET_1 0x2200
20 #define ICS_ARCIN_V6_INTRSTAT_1 0x2290
21 #define ICS_ARCIN_V6_INTROFFSET_2 0x3200
22 #define ICS_ARCIN_V6_INTRSTAT_2 0x3290
23
24 struct portinfo {
25 unsigned int dataoffset;
26 unsigned int ctrloffset;
27 unsigned int stepping;
28 };
29
30 static const struct portinfo pata_icside_portinfo_v5 = {
31 .dataoffset = 0x2800,
32 .ctrloffset = 0x2b80,
33 .stepping = 6,
34 };
35
36 static const struct portinfo pata_icside_portinfo_v6_1 = {
37 .dataoffset = 0x2000,
38 .ctrloffset = 0x2380,
39 .stepping = 6,
40 };
41
42 static const struct portinfo pata_icside_portinfo_v6_2 = {
43 .dataoffset = 0x3000,
44 .ctrloffset = 0x3380,
45 .stepping = 6,
46 };
47
48 #define PATA_ICSIDE_MAX_SG 128
49
50 struct pata_icside_state {
51 void __iomem *irq_port;
52 void __iomem *ioc_base;
53 unsigned int type;
54 unsigned int dma;
55 struct {
56 u8 port_sel;
57 u8 disabled;
58 unsigned int speed[ATA_MAX_DEVICES];
59 } port[2];
60 struct scatterlist sg[PATA_ICSIDE_MAX_SG];
61 };
62
63 struct pata_icside_info {
64 struct pata_icside_state *state;
65 struct expansion_card *ec;
66 void __iomem *base;
67 void __iomem *irqaddr;
68 unsigned int irqmask;
69 const expansioncard_ops_t *irqops;
70 unsigned int mwdma_mask;
71 unsigned int nr_ports;
72 const struct portinfo *port[2];
73 unsigned long raw_base;
74 unsigned long raw_ioc_base;
75 };
76
77 #define ICS_TYPE_A3IN 0
78 #define ICS_TYPE_A3USER 1
79 #define ICS_TYPE_V6 3
80 #define ICS_TYPE_V5 15
81 #define ICS_TYPE_NOTYPE ((unsigned int)-1)
82
83 /* ---------------- Version 5 PCB Support Functions --------------------- */
84 /* Prototype: pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
85 * Purpose : enable interrupts from card
86 */
87 static void pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
88 {
89 struct pata_icside_state *state = ec->irq_data;
90
91 writeb(0, state->irq_port + ICS_ARCIN_V5_INTROFFSET);
92 }
93
94 /* Prototype: pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
95 * Purpose : disable interrupts from card
96 */
97 static void pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
98 {
99 struct pata_icside_state *state = ec->irq_data;
100
101 readb(state->irq_port + ICS_ARCIN_V5_INTROFFSET);
102 }
103
104 static const expansioncard_ops_t pata_icside_ops_arcin_v5 = {
105 .irqenable = pata_icside_irqenable_arcin_v5,
106 .irqdisable = pata_icside_irqdisable_arcin_v5,
107 };
108
109
110 /* ---------------- Version 6 PCB Support Functions --------------------- */
111 /* Prototype: pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
112 * Purpose : enable interrupts from card
113 */
114 static void pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
115 {
116 struct pata_icside_state *state = ec->irq_data;
117 void __iomem *base = state->irq_port;
118
119 if (!state->port[0].disabled)
120 writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
121 if (!state->port[1].disabled)
122 writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
123 }
124
125 /* Prototype: pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
126 * Purpose : disable interrupts from card
127 */
128 static void pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
129 {
130 struct pata_icside_state *state = ec->irq_data;
131
132 readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
133 readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
134 }
135
136 /* Prototype: pata_icside_irqprobe(struct expansion_card *ec)
137 * Purpose : detect an active interrupt from card
138 */
139 static int pata_icside_irqpending_arcin_v6(struct expansion_card *ec)
140 {
141 struct pata_icside_state *state = ec->irq_data;
142
143 return readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_1) & 1 ||
144 readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_2) & 1;
145 }
146
147 static const expansioncard_ops_t pata_icside_ops_arcin_v6 = {
148 .irqenable = pata_icside_irqenable_arcin_v6,
149 .irqdisable = pata_icside_irqdisable_arcin_v6,
150 .irqpending = pata_icside_irqpending_arcin_v6,
151 };
152
153
154 /*
155 * SG-DMA support.
156 *
157 * Similar to the BM-DMA, but we use the RiscPCs IOMD DMA controllers.
158 * There is only one DMA controller per card, which means that only
159 * one drive can be accessed at one time. NOTE! We do not enforce that
160 * here, but we rely on the main IDE driver spotting that both
161 * interfaces use the same IRQ, which should guarantee this.
162 */
163
164 /*
165 * Configure the IOMD to give the appropriate timings for the transfer
166 * mode being requested. We take the advice of the ATA standards, and
167 * calculate the cycle time based on the transfer mode, and the EIDE
168 * MW DMA specs that the drive provides in the IDENTIFY command.
169 *
170 * We have the following IOMD DMA modes to choose from:
171 *
172 * Type Active Recovery Cycle
173 * A 250 (250) 312 (550) 562 (800)
174 * B 187 (200) 250 (550) 437 (750)
175 * C 125 (125) 125 (375) 250 (500)
176 * D 62 (50) 125 (375) 187 (425)
177 *
178 * (figures in brackets are actual measured timings on DIOR/DIOW)
179 *
180 * However, we also need to take care of the read/write active and
181 * recovery timings:
182 *
183 * Read Write
184 * Mode Active -- Recovery -- Cycle IOMD type
185 * MW0 215 50 215 480 A
186 * MW1 80 50 50 150 C
187 * MW2 70 25 25 120 C
188 */
189 static void pata_icside_set_dmamode(struct ata_port *ap, struct ata_device *adev)
190 {
191 struct pata_icside_state *state = ap->host->private_data;
192 struct ata_timing t;
193 unsigned int cycle;
194 char iomd_type;
195
196 /*
197 * DMA is based on a 16MHz clock
198 */
199 if (ata_timing_compute(adev, adev->dma_mode, &t, 1000, 1))
200 return;
201
202 /*
203 * Choose the IOMD cycle timing which ensure that the interface
204 * satisfies the measured active, recovery and cycle times.
205 */
206 if (t.active <= 50 && t.recover <= 375 && t.cycle <= 425)
207 iomd_type = 'D', cycle = 187;
208 else if (t.active <= 125 && t.recover <= 375 && t.cycle <= 500)
209 iomd_type = 'C', cycle = 250;
210 else if (t.active <= 200 && t.recover <= 550 && t.cycle <= 750)
211 iomd_type = 'B', cycle = 437;
212 else
213 iomd_type = 'A', cycle = 562;
214
215 ata_dev_printk(adev, KERN_INFO, "timings: act %dns rec %dns cyc %dns (%c)\n",
216 t.active, t.recover, t.cycle, iomd_type);
217
218 state->port[ap->port_no].speed[adev->devno] = cycle;
219 }
220
221 static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc)
222 {
223 struct ata_port *ap = qc->ap;
224 struct pata_icside_state *state = ap->host->private_data;
225 struct scatterlist *sg, *rsg = state->sg;
226 unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE;
227 unsigned int si;
228
229 /*
230 * We are simplex; BUG if we try to fiddle with DMA
231 * while it's active.
232 */
233 BUG_ON(dma_channel_active(state->dma));
234
235 /*
236 * Copy ATAs scattered sg list into a contiguous array of sg
237 */
238 for_each_sg(qc->sg, sg, qc->n_elem, si) {
239 memcpy(rsg, sg, sizeof(*sg));
240 rsg++;
241 }
242
243 /*
244 * Route the DMA signals to the correct interface
245 */
246 writeb(state->port[ap->port_no].port_sel, state->ioc_base);
247
248 set_dma_speed(state->dma, state->port[ap->port_no].speed[qc->dev->devno]);
249 set_dma_sg(state->dma, state->sg, rsg - state->sg);
250 set_dma_mode(state->dma, write ? DMA_MODE_WRITE : DMA_MODE_READ);
251
252 /* issue r/w command */
253 ap->ops->exec_command(ap, &qc->tf);
254 }
255
256 static void pata_icside_bmdma_start(struct ata_queued_cmd *qc)
257 {
258 struct ata_port *ap = qc->ap;
259 struct pata_icside_state *state = ap->host->private_data;
260
261 BUG_ON(dma_channel_active(state->dma));
262 enable_dma(state->dma);
263 }
264
265 static void pata_icside_bmdma_stop(struct ata_queued_cmd *qc)
266 {
267 struct ata_port *ap = qc->ap;
268 struct pata_icside_state *state = ap->host->private_data;
269
270 disable_dma(state->dma);
271
272 /* see ata_bmdma_stop */
273 ata_altstatus(ap);
274 }
275
276 static u8 pata_icside_bmdma_status(struct ata_port *ap)
277 {
278 struct pata_icside_state *state = ap->host->private_data;
279 void __iomem *irq_port;
280
281 irq_port = state->irq_port + (ap->port_no ? ICS_ARCIN_V6_INTRSTAT_2 :
282 ICS_ARCIN_V6_INTRSTAT_1);
283
284 return readb(irq_port) & 1 ? ATA_DMA_INTR : 0;
285 }
286
287 static int icside_dma_init(struct pata_icside_info *info)
288 {
289 struct pata_icside_state *state = info->state;
290 struct expansion_card *ec = info->ec;
291 int i;
292
293 for (i = 0; i < ATA_MAX_DEVICES; i++) {
294 state->port[0].speed[i] = 480;
295 state->port[1].speed[i] = 480;
296 }
297
298 if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) {
299 state->dma = ec->dma;
300 info->mwdma_mask = 0x07; /* MW0..2 */
301 }
302
303 return 0;
304 }
305
306
307 static int pata_icside_port_start(struct ata_port *ap)
308 {
309 /* No PRD to alloc */
310 return ata_pad_alloc(ap, ap->dev);
311 }
312
313 static struct scsi_host_template pata_icside_sht = {
314 .module = THIS_MODULE,
315 .name = DRV_NAME,
316 .ioctl = ata_scsi_ioctl,
317 .queuecommand = ata_scsi_queuecmd,
318 .can_queue = ATA_DEF_QUEUE,
319 .this_id = ATA_SHT_THIS_ID,
320 .sg_tablesize = PATA_ICSIDE_MAX_SG,
321 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
322 .emulated = ATA_SHT_EMULATED,
323 .use_clustering = ATA_SHT_USE_CLUSTERING,
324 .proc_name = DRV_NAME,
325 .dma_boundary = ~0, /* no dma boundaries */
326 .slave_configure = ata_scsi_slave_config,
327 .slave_destroy = ata_scsi_slave_destroy,
328 .bios_param = ata_std_bios_param,
329 };
330
331 /* wish this was exported from libata-core */
332 static void ata_dummy_noret(struct ata_port *port)
333 {
334 }
335
336 static void pata_icside_postreset(struct ata_link *link, unsigned int *classes)
337 {
338 struct ata_port *ap = link->ap;
339 struct pata_icside_state *state = ap->host->private_data;
340
341 if (classes[0] != ATA_DEV_NONE || classes[1] != ATA_DEV_NONE)
342 return ata_std_postreset(link, classes);
343
344 state->port[ap->port_no].disabled = 1;
345
346 if (state->type == ICS_TYPE_V6) {
347 /*
348 * Disable interrupts from this port, otherwise we
349 * receive spurious interrupts from the floating
350 * interrupt line.
351 */
352 void __iomem *irq_port = state->irq_port +
353 (ap->port_no ? ICS_ARCIN_V6_INTROFFSET_2 : ICS_ARCIN_V6_INTROFFSET_1);
354 readb(irq_port);
355 }
356 }
357
358 static void pata_icside_error_handler(struct ata_port *ap)
359 {
360 ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, NULL,
361 pata_icside_postreset);
362 }
363
364 static struct ata_port_operations pata_icside_port_ops = {
365 .set_dmamode = pata_icside_set_dmamode,
366
367 .tf_load = ata_tf_load,
368 .tf_read = ata_tf_read,
369 .exec_command = ata_exec_command,
370 .check_status = ata_check_status,
371 .dev_select = ata_std_dev_select,
372
373 .cable_detect = ata_cable_40wire,
374
375 .bmdma_setup = pata_icside_bmdma_setup,
376 .bmdma_start = pata_icside_bmdma_start,
377
378 .data_xfer = ata_data_xfer_noirq,
379
380 /* no need to build any PRD tables for DMA */
381 .qc_prep = ata_noop_qc_prep,
382 .qc_issue = ata_qc_issue_prot,
383
384 .freeze = ata_bmdma_freeze,
385 .thaw = ata_bmdma_thaw,
386 .error_handler = pata_icside_error_handler,
387 .post_internal_cmd = pata_icside_bmdma_stop,
388
389 .irq_clear = ata_dummy_noret,
390 .irq_on = ata_irq_on,
391
392 .port_start = pata_icside_port_start,
393
394 .bmdma_stop = pata_icside_bmdma_stop,
395 .bmdma_status = pata_icside_bmdma_status,
396 };
397
398 static void __devinit
399 pata_icside_setup_ioaddr(struct ata_port *ap, void __iomem *base,
400 struct pata_icside_info *info,
401 const struct portinfo *port)
402 {
403 struct ata_ioports *ioaddr = &ap->ioaddr;
404 void __iomem *cmd = base + port->dataoffset;
405
406 ioaddr->cmd_addr = cmd;
407 ioaddr->data_addr = cmd + (ATA_REG_DATA << port->stepping);
408 ioaddr->error_addr = cmd + (ATA_REG_ERR << port->stepping);
409 ioaddr->feature_addr = cmd + (ATA_REG_FEATURE << port->stepping);
410 ioaddr->nsect_addr = cmd + (ATA_REG_NSECT << port->stepping);
411 ioaddr->lbal_addr = cmd + (ATA_REG_LBAL << port->stepping);
412 ioaddr->lbam_addr = cmd + (ATA_REG_LBAM << port->stepping);
413 ioaddr->lbah_addr = cmd + (ATA_REG_LBAH << port->stepping);
414 ioaddr->device_addr = cmd + (ATA_REG_DEVICE << port->stepping);
415 ioaddr->status_addr = cmd + (ATA_REG_STATUS << port->stepping);
416 ioaddr->command_addr = cmd + (ATA_REG_CMD << port->stepping);
417
418 ioaddr->ctl_addr = base + port->ctrloffset;
419 ioaddr->altstatus_addr = ioaddr->ctl_addr;
420
421 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx",
422 info->raw_base + port->dataoffset,
423 info->raw_base + port->ctrloffset);
424
425 if (info->raw_ioc_base)
426 ata_port_desc(ap, "iocbase 0x%lx", info->raw_ioc_base);
427 }
428
429 static int __devinit pata_icside_register_v5(struct pata_icside_info *info)
430 {
431 struct pata_icside_state *state = info->state;
432 void __iomem *base;
433
434 base = ecardm_iomap(info->ec, ECARD_RES_MEMC, 0, 0);
435 if (!base)
436 return -ENOMEM;
437
438 state->irq_port = base;
439
440 info->base = base;
441 info->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
442 info->irqmask = 1;
443 info->irqops = &pata_icside_ops_arcin_v5;
444 info->nr_ports = 1;
445 info->port[0] = &pata_icside_portinfo_v5;
446
447 info->raw_base = ecard_resource_start(info->ec, ECARD_RES_MEMC);
448
449 return 0;
450 }
451
452 static int __devinit pata_icside_register_v6(struct pata_icside_info *info)
453 {
454 struct pata_icside_state *state = info->state;
455 struct expansion_card *ec = info->ec;
456 void __iomem *ioc_base, *easi_base;
457 unsigned int sel = 0;
458
459 ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
460 if (!ioc_base)
461 return -ENOMEM;
462
463 easi_base = ioc_base;
464
465 if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
466 easi_base = ecardm_iomap(ec, ECARD_RES_EASI, 0, 0);
467 if (!easi_base)
468 return -ENOMEM;
469
470 /*
471 * Enable access to the EASI region.
472 */
473 sel = 1 << 5;
474 }
475
476 writeb(sel, ioc_base);
477
478 state->irq_port = easi_base;
479 state->ioc_base = ioc_base;
480 state->port[0].port_sel = sel;
481 state->port[1].port_sel = sel | 1;
482
483 info->base = easi_base;
484 info->irqops = &pata_icside_ops_arcin_v6;
485 info->nr_ports = 2;
486 info->port[0] = &pata_icside_portinfo_v6_1;
487 info->port[1] = &pata_icside_portinfo_v6_2;
488
489 info->raw_base = ecard_resource_start(ec, ECARD_RES_EASI);
490 info->raw_ioc_base = ecard_resource_start(ec, ECARD_RES_IOCFAST);
491
492 return icside_dma_init(info);
493 }
494
495 static int __devinit pata_icside_add_ports(struct pata_icside_info *info)
496 {
497 struct expansion_card *ec = info->ec;
498 struct ata_host *host;
499 int i;
500
501 if (info->irqaddr) {
502 ec->irqaddr = info->irqaddr;
503 ec->irqmask = info->irqmask;
504 }
505 if (info->irqops)
506 ecard_setirq(ec, info->irqops, info->state);
507
508 /*
509 * Be on the safe side - disable interrupts
510 */
511 ec->ops->irqdisable(ec, ec->irq);
512
513 host = ata_host_alloc(&ec->dev, info->nr_ports);
514 if (!host)
515 return -ENOMEM;
516
517 host->private_data = info->state;
518 host->flags = ATA_HOST_SIMPLEX;
519
520 for (i = 0; i < info->nr_ports; i++) {
521 struct ata_port *ap = host->ports[i];
522
523 ap->pio_mask = 0x1f;
524 ap->mwdma_mask = info->mwdma_mask;
525 ap->flags |= ATA_FLAG_SLAVE_POSS;
526 ap->ops = &pata_icside_port_ops;
527
528 pata_icside_setup_ioaddr(ap, info->base, info, info->port[i]);
529 }
530
531 return ata_host_activate(host, ec->irq, ata_interrupt, 0,
532 &pata_icside_sht);
533 }
534
535 static int __devinit
536 pata_icside_probe(struct expansion_card *ec, const struct ecard_id *id)
537 {
538 struct pata_icside_state *state;
539 struct pata_icside_info info;
540 void __iomem *idmem;
541 int ret;
542
543 ret = ecard_request_resources(ec);
544 if (ret)
545 goto out;
546
547 state = devm_kzalloc(&ec->dev, sizeof(*state), GFP_KERNEL);
548 if (!state) {
549 ret = -ENOMEM;
550 goto release;
551 }
552
553 state->type = ICS_TYPE_NOTYPE;
554 state->dma = NO_DMA;
555
556 idmem = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
557 if (idmem) {
558 unsigned int type;
559
560 type = readb(idmem + ICS_IDENT_OFFSET) & 1;
561 type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
562 type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
563 type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
564 ecardm_iounmap(ec, idmem);
565
566 state->type = type;
567 }
568
569 memset(&info, 0, sizeof(info));
570 info.state = state;
571 info.ec = ec;
572
573 switch (state->type) {
574 case ICS_TYPE_A3IN:
575 dev_warn(&ec->dev, "A3IN unsupported\n");
576 ret = -ENODEV;
577 break;
578
579 case ICS_TYPE_A3USER:
580 dev_warn(&ec->dev, "A3USER unsupported\n");
581 ret = -ENODEV;
582 break;
583
584 case ICS_TYPE_V5:
585 ret = pata_icside_register_v5(&info);
586 break;
587
588 case ICS_TYPE_V6:
589 ret = pata_icside_register_v6(&info);
590 break;
591
592 default:
593 dev_warn(&ec->dev, "unknown interface type\n");
594 ret = -ENODEV;
595 break;
596 }
597
598 if (ret == 0)
599 ret = pata_icside_add_ports(&info);
600
601 if (ret == 0)
602 goto out;
603
604 release:
605 ecard_release_resources(ec);
606 out:
607 return ret;
608 }
609
610 static void pata_icside_shutdown(struct expansion_card *ec)
611 {
612 struct ata_host *host = ecard_get_drvdata(ec);
613 unsigned long flags;
614
615 /*
616 * Disable interrupts from this card. We need to do
617 * this before disabling EASI since we may be accessing
618 * this register via that region.
619 */
620 local_irq_save(flags);
621 ec->ops->irqdisable(ec, ec->irq);
622 local_irq_restore(flags);
623
624 /*
625 * Reset the ROM pointer so that we can read the ROM
626 * after a soft reboot. This also disables access to
627 * the IDE taskfile via the EASI region.
628 */
629 if (host) {
630 struct pata_icside_state *state = host->private_data;
631 if (state->ioc_base)
632 writeb(0, state->ioc_base);
633 }
634 }
635
636 static void __devexit pata_icside_remove(struct expansion_card *ec)
637 {
638 struct ata_host *host = ecard_get_drvdata(ec);
639 struct pata_icside_state *state = host->private_data;
640
641 ata_host_detach(host);
642
643 pata_icside_shutdown(ec);
644
645 /*
646 * don't NULL out the drvdata - devres/libata wants it
647 * to free the ata_host structure.
648 */
649 if (state->dma != NO_DMA)
650 free_dma(state->dma);
651
652 ecard_release_resources(ec);
653 }
654
655 static const struct ecard_id pata_icside_ids[] = {
656 { MANU_ICS, PROD_ICS_IDE },
657 { MANU_ICS2, PROD_ICS2_IDE },
658 { 0xffff, 0xffff }
659 };
660
661 static struct ecard_driver pata_icside_driver = {
662 .probe = pata_icside_probe,
663 .remove = __devexit_p(pata_icside_remove),
664 .shutdown = pata_icside_shutdown,
665 .id_table = pata_icside_ids,
666 .drv = {
667 .name = DRV_NAME,
668 },
669 };
670
671 static int __init pata_icside_init(void)
672 {
673 return ecard_register_driver(&pata_icside_driver);
674 }
675
676 static void __exit pata_icside_exit(void)
677 {
678 ecard_remove_driver(&pata_icside_driver);
679 }
680
681 MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
682 MODULE_LICENSE("GPL");
683 MODULE_DESCRIPTION("ICS PATA driver");
684
685 module_init(pata_icside_init);
686 module_exit(pata_icside_exit);
kernel-based virtual machine