1/*-
2 * Copyright (c) 1998 - 2007 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1998 - 2007 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
|
28__FBSDID("$FreeBSD: head/sys/dev/ata/ata-all.c 166901 2007-02-23 12:19:07Z piso $");
| 28__FBSDID("$FreeBSD: head/sys/dev/ata/ata-all.c 166909 2007-02-23 16:25:08Z jhb $");
|
29
30#include "opt_ata.h"
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/ata.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36#include <sys/endian.h>
37#include <sys/ctype.h>
38#include <sys/conf.h>
39#include <sys/bus.h>
40#include <sys/bio.h>
41#include <sys/malloc.h>
42#include <sys/sysctl.h>
43#include <sys/sema.h>
44#include <sys/taskqueue.h>
45#include <vm/uma.h>
46#include <machine/stdarg.h>
47#include <machine/resource.h>
48#include <machine/bus.h>
49#include <sys/rman.h>
50#include <dev/ata/ata-all.h>
51#include <ata_if.h>
52
53/* device structure */
54static d_ioctl_t ata_ioctl;
55static struct cdevsw ata_cdevsw = {
56 .d_version = D_VERSION,
57 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
58 .d_ioctl = ata_ioctl,
59 .d_name = "ata",
60};
61
62/* prototypes */
63static void ata_boot_attach(void);
64static device_t ata_add_child(device_t, struct ata_device *, int);
65static int ata_getparam(struct ata_device *, int);
66static void bswap(int8_t *, int);
67static void btrim(int8_t *, int);
68static void bpack(int8_t *, int8_t *, int);
69
70/* global vars */
71MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
72int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
73struct intr_config_hook *ata_delayed_attach = NULL;
74devclass_t ata_devclass;
75uma_zone_t ata_request_zone;
76uma_zone_t ata_composite_zone;
77int ata_wc = 1;
78
79/* local vars */
80static int ata_dma = 1;
81static int atapi_dma = 1;
82
83/* sysctl vars */
84SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
85TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
86SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
87 "ATA disk DMA mode control");
88TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
89SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
90 "ATAPI device DMA mode control");
91TUNABLE_INT("hw.ata.wc", &ata_wc);
92SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
93 "ATA disk write caching");
94
95/*
96 * newbus device interface related functions
97 */
98int
99ata_probe(device_t dev)
100{
101 return 0;
102}
103
104int
105ata_attach(device_t dev)
106{
107 struct ata_channel *ch = device_get_softc(dev);
108 int error, rid;
109
110 /* check that we have a virgin channel to attach */
111 if (ch->r_irq)
112 return EEXIST;
113
114 /* initialize the softc basics */
115 ch->dev = dev;
116 ch->state = ATA_IDLE;
117 bzero(&ch->state_mtx, sizeof(struct mtx));
118 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
119 bzero(&ch->queue_mtx, sizeof(struct mtx));
120 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
121 TAILQ_INIT(&ch->ata_queue);
122
123 /* reset the controller HW, the channel and device(s) */
124 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
| 29
30#include "opt_ata.h"
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/ata.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36#include <sys/endian.h>
37#include <sys/ctype.h>
38#include <sys/conf.h>
39#include <sys/bus.h>
40#include <sys/bio.h>
41#include <sys/malloc.h>
42#include <sys/sysctl.h>
43#include <sys/sema.h>
44#include <sys/taskqueue.h>
45#include <vm/uma.h>
46#include <machine/stdarg.h>
47#include <machine/resource.h>
48#include <machine/bus.h>
49#include <sys/rman.h>
50#include <dev/ata/ata-all.h>
51#include <ata_if.h>
52
53/* device structure */
54static d_ioctl_t ata_ioctl;
55static struct cdevsw ata_cdevsw = {
56 .d_version = D_VERSION,
57 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
58 .d_ioctl = ata_ioctl,
59 .d_name = "ata",
60};
61
62/* prototypes */
63static void ata_boot_attach(void);
64static device_t ata_add_child(device_t, struct ata_device *, int);
65static int ata_getparam(struct ata_device *, int);
66static void bswap(int8_t *, int);
67static void btrim(int8_t *, int);
68static void bpack(int8_t *, int8_t *, int);
69
70/* global vars */
71MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
72int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
73struct intr_config_hook *ata_delayed_attach = NULL;
74devclass_t ata_devclass;
75uma_zone_t ata_request_zone;
76uma_zone_t ata_composite_zone;
77int ata_wc = 1;
78
79/* local vars */
80static int ata_dma = 1;
81static int atapi_dma = 1;
82
83/* sysctl vars */
84SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
85TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
86SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
87 "ATA disk DMA mode control");
88TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
89SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
90 "ATAPI device DMA mode control");
91TUNABLE_INT("hw.ata.wc", &ata_wc);
92SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
93 "ATA disk write caching");
94
95/*
96 * newbus device interface related functions
97 */
98int
99ata_probe(device_t dev)
100{
101 return 0;
102}
103
104int
105ata_attach(device_t dev)
106{
107 struct ata_channel *ch = device_get_softc(dev);
108 int error, rid;
109
110 /* check that we have a virgin channel to attach */
111 if (ch->r_irq)
112 return EEXIST;
113
114 /* initialize the softc basics */
115 ch->dev = dev;
116 ch->state = ATA_IDLE;
117 bzero(&ch->state_mtx, sizeof(struct mtx));
118 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
119 bzero(&ch->queue_mtx, sizeof(struct mtx));
120 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
121 TAILQ_INIT(&ch->ata_queue);
122
123 /* reset the controller HW, the channel and device(s) */
124 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
|
125 tsleep(&error, PRIBIO, "ataatch", 1);
| 125 pause("ataatch", 1);
|
126 ATA_RESET(dev);
127 ATA_LOCKING(dev, ATA_LF_UNLOCK);
128
129 /* setup interrupt delivery */
130 rid = ATA_IRQ_RID;
131 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
132 RF_SHAREABLE | RF_ACTIVE);
133 if (!ch->r_irq) {
134 device_printf(dev, "unable to allocate interrupt\n");
135 return ENXIO;
136 }
137 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
138 (driver_intr_t *)ata_interrupt, ch, &ch->ih))) {
139 device_printf(dev, "unable to setup interrupt\n");
140 return error;
141 }
142
143 /* probe and attach devices on this channel unless we are in early boot */
144 if (!ata_delayed_attach)
145 ata_identify(dev);
146 return 0;
147}
148
149int
150ata_detach(device_t dev)
151{
152 struct ata_channel *ch = device_get_softc(dev);
153 device_t *children;
154 int nchildren, i;
155
156 /* check that we have a valid channel to detach */
157 if (!ch->r_irq)
158 return ENXIO;
159
160 /* grap the channel lock so no new requests gets launched */
161 mtx_lock(&ch->state_mtx);
162 ch->state |= ATA_STALL_QUEUE;
163 mtx_unlock(&ch->state_mtx);
164
165 /* detach & delete all children */
166 if (!device_get_children(dev, &children, &nchildren)) {
167 for (i = 0; i < nchildren; i++)
168 if (children[i])
169 device_delete_child(dev, children[i]);
170 free(children, M_TEMP);
171 }
172
173 /* release resources */
174 bus_teardown_intr(dev, ch->r_irq, ch->ih);
175 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
176 ch->r_irq = NULL;
177 mtx_destroy(&ch->state_mtx);
178 mtx_destroy(&ch->queue_mtx);
179 return 0;
180}
181
182int
183ata_reinit(device_t dev)
184{
185 struct ata_channel *ch = device_get_softc(dev);
186 struct ata_request *request;
187 device_t *children;
188 int nchildren, i;
189
190 /* check that we have a valid channel to reinit */
191 if (!ch || !ch->r_irq)
192 return ENXIO;
193
194 if (bootverbose)
195 device_printf(dev, "reiniting channel ..\n");
196
197 /* poll for locking the channel */
198 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
| 126 ATA_RESET(dev);
127 ATA_LOCKING(dev, ATA_LF_UNLOCK);
128
129 /* setup interrupt delivery */
130 rid = ATA_IRQ_RID;
131 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
132 RF_SHAREABLE | RF_ACTIVE);
133 if (!ch->r_irq) {
134 device_printf(dev, "unable to allocate interrupt\n");
135 return ENXIO;
136 }
137 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
138 (driver_intr_t *)ata_interrupt, ch, &ch->ih))) {
139 device_printf(dev, "unable to setup interrupt\n");
140 return error;
141 }
142
143 /* probe and attach devices on this channel unless we are in early boot */
144 if (!ata_delayed_attach)
145 ata_identify(dev);
146 return 0;
147}
148
149int
150ata_detach(device_t dev)
151{
152 struct ata_channel *ch = device_get_softc(dev);
153 device_t *children;
154 int nchildren, i;
155
156 /* check that we have a valid channel to detach */
157 if (!ch->r_irq)
158 return ENXIO;
159
160 /* grap the channel lock so no new requests gets launched */
161 mtx_lock(&ch->state_mtx);
162 ch->state |= ATA_STALL_QUEUE;
163 mtx_unlock(&ch->state_mtx);
164
165 /* detach & delete all children */
166 if (!device_get_children(dev, &children, &nchildren)) {
167 for (i = 0; i < nchildren; i++)
168 if (children[i])
169 device_delete_child(dev, children[i]);
170 free(children, M_TEMP);
171 }
172
173 /* release resources */
174 bus_teardown_intr(dev, ch->r_irq, ch->ih);
175 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
176 ch->r_irq = NULL;
177 mtx_destroy(&ch->state_mtx);
178 mtx_destroy(&ch->queue_mtx);
179 return 0;
180}
181
182int
183ata_reinit(device_t dev)
184{
185 struct ata_channel *ch = device_get_softc(dev);
186 struct ata_request *request;
187 device_t *children;
188 int nchildren, i;
189
190 /* check that we have a valid channel to reinit */
191 if (!ch || !ch->r_irq)
192 return ENXIO;
193
194 if (bootverbose)
195 device_printf(dev, "reiniting channel ..\n");
196
197 /* poll for locking the channel */
198 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
|
199 tsleep(&dev, PRIBIO, "atarini", 1);
| 199 pause("atarini", 1);
|
200
201 /* catch eventual request in ch->running */
202 mtx_lock(&ch->state_mtx);
203 if ((request = ch->running))
204 callout_stop(&request->callout);
205 ch->running = NULL;
206
207 /* unconditionally grap the channel lock */
208 ch->state |= ATA_STALL_QUEUE;
209 mtx_unlock(&ch->state_mtx);
210
211 /* reset the controller HW, the channel and device(s) */
212 ATA_RESET(dev);
213
214 /* reinit the children and delete any that fails */
215 if (!device_get_children(dev, &children, &nchildren)) {
216 mtx_lock(&Giant); /* newbus suckage it needs Giant */
217 for (i = 0; i < nchildren; i++) {
218 /* did any children go missing ? */
219 if (children[i] && device_is_attached(children[i]) &&
220 ATA_REINIT(children[i])) {
221 /*
222 * if we had a running request and its device matches
223 * this child we need to inform the request that the
224 * device is gone.
225 */
226 if (request && request->dev == children[i]) {
227 request->result = ENXIO;
228 device_printf(request->dev, "FAILURE - device detached\n");
229
230 /* if not timeout finish request here */
231 if (!(request->flags & ATA_R_TIMEOUT))
232 ata_finish(request);
233 request = NULL;
234 }
235 device_delete_child(dev, children[i]);
236 }
237 }
238 free(children, M_TEMP);
239 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
240 }
241
242 /* if we still have a good request put it on the queue again */
243 if (request && !(request->flags & ATA_R_TIMEOUT)) {
244 device_printf(request->dev,
245 "WARNING - %s requeued due to channel reset",
246 ata_cmd2str(request));
247 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
248 printf(" LBA=%ju", request->u.ata.lba);
249 printf("\n");
250 request->flags |= ATA_R_REQUEUE;
251 ata_queue_request(request);
252 }
253
254 /* we're done release the channel for new work */
255 mtx_lock(&ch->state_mtx);
256 ch->state = ATA_IDLE;
257 mtx_unlock(&ch->state_mtx);
258 ATA_LOCKING(dev, ATA_LF_UNLOCK);
259
260 if (bootverbose)
261 device_printf(dev, "reinit done ..\n");
262
263 /* kick off requests on the queue */
264 ata_start(dev);
265 return 0;
266}
267
268int
269ata_suspend(device_t dev)
270{
271 struct ata_channel *ch;
272
273 /* check for valid device */
274 if (!dev || !(ch = device_get_softc(dev)))
275 return ENXIO;
276
277 /* wait for the channel to be IDLE or detached before suspending */
278 while (ch->r_irq) {
279 mtx_lock(&ch->state_mtx);
280 if (ch->state == ATA_IDLE) {
281 ch->state = ATA_ACTIVE;
282 mtx_unlock(&ch->state_mtx);
283 break;
284 }
285 mtx_unlock(&ch->state_mtx);
286 tsleep(ch, PRIBIO, "atasusp", hz/10);
287 }
288 ATA_LOCKING(dev, ATA_LF_UNLOCK);
289 return 0;
290}
291
292int
293ata_resume(device_t dev)
294{
295 struct ata_channel *ch;
296 int error;
297
298 /* check for valid device */
299 if (!dev || !(ch = device_get_softc(dev)))
300 return ENXIO;
301
302 /* reinit the devices, we dont know what mode/state they are in */
303 error = ata_reinit(dev);
304
305 /* kick off requests on the queue */
306 ata_start(dev);
307 return error;
308}
309
310int
311ata_interrupt(void *data)
312{
313 struct ata_channel *ch = (struct ata_channel *)data;
314 struct ata_request *request;
315
316 mtx_lock(&ch->state_mtx);
317 do {
318 /* ignore interrupt if its not for us */
319 if (ch->hw.status && !ch->hw.status(ch->dev))
320 break;
321
322 /* do we have a running request */
323 if (!(request = ch->running))
324 break;
325
326 ATA_DEBUG_RQ(request, "interrupt");
327
328 /* safetycheck for the right state */
329 if (ch->state == ATA_IDLE) {
330 device_printf(request->dev, "interrupt on idle channel ignored\n");
331 break;
332 }
333
334 /*
335 * we have the HW locks, so end the transaction for this request
336 * if it finishes immediately otherwise wait for next interrupt
337 */
338 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
339 ch->running = NULL;
340 if (ch->state == ATA_ACTIVE)
341 ch->state = ATA_IDLE;
342 mtx_unlock(&ch->state_mtx);
343 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
344 ata_finish(request);
345 return 1;
346 }
347 } while (0);
348 mtx_unlock(&ch->state_mtx);
349 return 0;
350}
351
352/*
353 * device related interfaces
354 */
355static int
356ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
357 int32_t flag, struct thread *td)
358{
359 device_t device, *children;
360 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
361 int *value = (int *)data;
362 int i, nchildren, error = ENOTTY;
363
364 switch (cmd) {
365 case IOCATAGMAXCHANNEL:
366 *value = devclass_get_maxunit(ata_devclass);
367 error = 0;
368 break;
369
370 case IOCATAREINIT:
371 if (*value > devclass_get_maxunit(ata_devclass) ||
372 !(device = devclass_get_device(ata_devclass, *value)))
373 return ENXIO;
374 error = ata_reinit(device);
375 ata_start(device);
376 break;
377
378 case IOCATAATTACH:
379 if (*value > devclass_get_maxunit(ata_devclass) ||
380 !(device = devclass_get_device(ata_devclass, *value)))
381 return ENXIO;
382 /* XXX SOS should enable channel HW on controller */
383 error = ata_attach(device);
384 break;
385
386 case IOCATADETACH:
387 if (*value > devclass_get_maxunit(ata_devclass) ||
388 !(device = devclass_get_device(ata_devclass, *value)))
389 return ENXIO;
390 error = ata_detach(device);
391 /* XXX SOS should disable channel HW on controller */
392 break;
393
394 case IOCATADEVICES:
395 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
396 !(device = devclass_get_device(ata_devclass, devices->channel)))
397 return ENXIO;
398 bzero(devices->name[0], 32);
399 bzero(&devices->params[0], sizeof(struct ata_params));
400 bzero(devices->name[1], 32);
401 bzero(&devices->params[1], sizeof(struct ata_params));
402 if (!device_get_children(device, &children, &nchildren)) {
403 for (i = 0; i < nchildren; i++) {
404 if (children[i] && device_is_attached(children[i])) {
405 struct ata_device *atadev = device_get_softc(children[i]);
406
407 if (atadev->unit == ATA_MASTER) {
408 strncpy(devices->name[0],
409 device_get_nameunit(children[i]), 32);
410 bcopy(&atadev->param, &devices->params[0],
411 sizeof(struct ata_params));
412 }
413 if (atadev->unit == ATA_SLAVE) {
414 strncpy(devices->name[1],
415 device_get_nameunit(children[i]), 32);
416 bcopy(&atadev->param, &devices->params[1],
417 sizeof(struct ata_params));
418 }
419 }
420 }
421 free(children, M_TEMP);
422 error = 0;
423 }
424 else
425 error = ENODEV;
426 break;
427
428 default:
429 if (ata_raid_ioctl_func)
430 error = ata_raid_ioctl_func(cmd, data);
431 }
432 return error;
433}
434
435int
436ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
437{
438 struct ata_device *atadev = device_get_softc(dev);
439 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
440 struct ata_params *params = (struct ata_params *)data;
441 int *mode = (int *)data;
442 struct ata_request *request;
443 caddr_t buf;
444 int error;
445
446 switch (cmd) {
447 case IOCATAREQUEST:
448 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
449 return ENOMEM;
450 }
451 if (!(request = ata_alloc_request())) {
452 free(buf, M_ATA);
453 return ENOMEM;
454 }
455 if (ioc_request->flags & ATA_CMD_WRITE) {
456 error = copyin(ioc_request->data, buf, ioc_request->count);
457 if (error) {
458 free(buf, M_ATA);
459 ata_free_request(request);
460 return error;
461 }
462 }
463 request->dev = dev;
464 if (ioc_request->flags & ATA_CMD_ATAPI) {
465 request->flags = ATA_R_ATAPI;
466 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
467 }
468 else {
469 request->u.ata.command = ioc_request->u.ata.command;
470 request->u.ata.feature = ioc_request->u.ata.feature;
471 request->u.ata.lba = ioc_request->u.ata.lba;
472 request->u.ata.count = ioc_request->u.ata.count;
473 }
474 request->timeout = ioc_request->timeout;
475 request->data = buf;
476 request->bytecount = ioc_request->count;
477 request->transfersize = request->bytecount;
478 if (ioc_request->flags & ATA_CMD_CONTROL)
479 request->flags |= ATA_R_CONTROL;
480 if (ioc_request->flags & ATA_CMD_READ)
481 request->flags |= ATA_R_READ;
482 if (ioc_request->flags & ATA_CMD_WRITE)
483 request->flags |= ATA_R_WRITE;
484 ata_queue_request(request);
485 if (request->flags & ATA_R_ATAPI) {
486 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
487 sizeof(struct atapi_sense));
488 }
489 else {
490 ioc_request->u.ata.command = request->u.ata.command;
491 ioc_request->u.ata.feature = request->u.ata.feature;
492 ioc_request->u.ata.lba = request->u.ata.lba;
493 ioc_request->u.ata.count = request->u.ata.count;
494 }
495 ioc_request->error = request->result;
496 if (ioc_request->flags & ATA_CMD_READ)
497 error = copyout(buf, ioc_request->data, ioc_request->count);
498 else
499 error = 0;
500 free(buf, M_ATA);
501 ata_free_request(request);
502 return error;
503
504 case IOCATAGPARM:
505 ata_getparam(atadev, 0);
506 bcopy(&atadev->param, params, sizeof(struct ata_params));
507 return 0;
508
509 case IOCATASMODE:
510 atadev->mode = *mode;
511 ATA_SETMODE(device_get_parent(dev), dev);
512 return 0;
513
514 case IOCATAGMODE:
515 *mode = atadev->mode;
516 return 0;
517 default:
518 return ENOTTY;
519 }
520}
521
522static void
523ata_boot_attach(void)
524{
525 struct ata_channel *ch;
526 int ctlr;
527
528 mtx_lock(&Giant); /* newbus suckage it needs Giant */
529
530 /* kick of probe and attach on all channels */
531 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
532 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
533 ata_identify(ch->dev);
534 }
535 }
536
537 /* release the hook that got us here, we are only needed once during boot */
538 if (ata_delayed_attach) {
539 config_intrhook_disestablish(ata_delayed_attach);
540 free(ata_delayed_attach, M_TEMP);
541 ata_delayed_attach = NULL;
542 }
543
544 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
545}
546
547
548/*
549 * misc support functions
550 */
551static device_t
552ata_add_child(device_t parent, struct ata_device *atadev, int unit)
553{
554 device_t child;
555
556 if ((child = device_add_child(parent, NULL, unit))) {
557 device_set_softc(child, atadev);
558 device_quiet(child);
559 atadev->dev = child;
560 atadev->max_iosize = DEV_BSIZE;
561 atadev->mode = ATA_PIO_MAX;
562 }
563 return child;
564}
565
566static int
567ata_getparam(struct ata_device *atadev, int init)
568{
569 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
570 struct ata_request *request;
571 u_int8_t command = 0;
572 int error = ENOMEM, retries = 2;
573
574 if (ch->devices &
575 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
576 command = ATA_ATA_IDENTIFY;
577 if (ch->devices &
578 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
579 command = ATA_ATAPI_IDENTIFY;
580 if (!command)
581 return ENXIO;
582
583 while (retries-- > 0 && error) {
584 if (!(request = ata_alloc_request()))
585 break;
586 request->dev = atadev->dev;
587 request->timeout = 1;
588 request->retries = 0;
589 request->u.ata.command = command;
590 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
591 request->data = (void *)&atadev->param;
592 request->bytecount = sizeof(struct ata_params);
593 request->donecount = 0;
594 request->transfersize = DEV_BSIZE;
595 ata_queue_request(request);
596 error = request->result;
597 ata_free_request(request);
598 }
599
600 if (!error && (isprint(atadev->param.model[0]) ||
601 isprint(atadev->param.model[1]))) {
602 struct ata_params *atacap = &atadev->param;
603 char buffer[64];
604 int16_t *ptr;
605
606 for (ptr = (int16_t *)atacap;
607 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
608 *ptr = le16toh(*ptr);
609 }
610 if (!(!strncmp(atacap->model, "FX", 2) ||
611 !strncmp(atacap->model, "NEC", 3) ||
612 !strncmp(atacap->model, "Pioneer", 7) ||
613 !strncmp(atacap->model, "SHARP", 5))) {
614 bswap(atacap->model, sizeof(atacap->model));
615 bswap(atacap->revision, sizeof(atacap->revision));
616 bswap(atacap->serial, sizeof(atacap->serial));
617 }
618 btrim(atacap->model, sizeof(atacap->model));
619 bpack(atacap->model, atacap->model, sizeof(atacap->model));
620 btrim(atacap->revision, sizeof(atacap->revision));
621 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
622 btrim(atacap->serial, sizeof(atacap->serial));
623 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
624
625 if (bootverbose)
626 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
627 device_get_unit(ch->dev),
628 atadev->unit == ATA_MASTER ? "master" : "slave",
629 ata_mode2str(ata_pmode(atacap)),
630 ata_mode2str(ata_wmode(atacap)),
631 ata_mode2str(ata_umode(atacap)),
632 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
633
634 if (init) {
635 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
636 device_set_desc_copy(atadev->dev, buffer);
637 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
638 (atadev->param.config != ATA_CFA_MAGIC1) &&
639 (atadev->param.config != ATA_CFA_MAGIC2)) {
640 if (atapi_dma && ch->dma &&
641 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
642 ata_umode(&atadev->param) >= ATA_UDMA2)
643 atadev->mode = ATA_DMA_MAX;
644 }
645 else {
646 if (ata_dma && ch->dma &&
647 (ata_umode(&atadev->param) > 0 ||
648 ata_wmode(&atadev->param) > 0))
649 atadev->mode = ATA_DMA_MAX;
650 }
651 }
652 }
653 else {
654 if (!error)
655 error = ENXIO;
656 }
657 return error;
658}
659
660int
661ata_identify(device_t dev)
662{
663 struct ata_channel *ch = device_get_softc(dev);
664 struct ata_device *master = NULL, *slave = NULL;
665 device_t master_child = NULL, slave_child = NULL;
666 int master_unit = -1, slave_unit = -1;
667
668 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
669 if (!(master = malloc(sizeof(struct ata_device),
670 M_ATA, M_NOWAIT | M_ZERO))) {
671 device_printf(dev, "out of memory\n");
672 return ENOMEM;
673 }
674 master->unit = ATA_MASTER;
675 }
676 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
677 if (!(slave = malloc(sizeof(struct ata_device),
678 M_ATA, M_NOWAIT | M_ZERO))) {
679 free(master, M_ATA);
680 device_printf(dev, "out of memory\n");
681 return ENOMEM;
682 }
683 slave->unit = ATA_SLAVE;
684 }
685
686#ifdef ATA_STATIC_ID
687 if (ch->devices & ATA_ATA_MASTER)
688 master_unit = (device_get_unit(dev) << 1);
689#endif
690 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
691 free(master, M_ATA);
692 master = NULL;
693 }
694#ifdef ATA_STATIC_ID
695 if (ch->devices & ATA_ATA_SLAVE)
696 slave_unit = (device_get_unit(dev) << 1) + 1;
697#endif
698 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
699 free(slave, M_ATA);
700 slave = NULL;
701 }
702
703 if (slave && ata_getparam(slave, 1)) {
704 device_delete_child(dev, slave_child);
705 free(slave, M_ATA);
706 }
707 if (master && ata_getparam(master, 1)) {
708 device_delete_child(dev, master_child);
709 free(master, M_ATA);
710 }
711
712 bus_generic_probe(dev);
713 bus_generic_attach(dev);
714 return 0;
715}
716
717void
718ata_default_registers(device_t dev)
719{
720 struct ata_channel *ch = device_get_softc(dev);
721
722 /* fill in the defaults from whats setup already */
723 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
724 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
725 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
726 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
727 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
728 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
729 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
730 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
731}
732
733void
734ata_modify_if_48bit(struct ata_request *request)
735{
736 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
737 struct ata_device *atadev = device_get_softc(request->dev);
738
739 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
740
741 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
742 request->u.ata.count > 256) &&
743 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
744
745 /* translate command into 48bit version */
746 switch (request->u.ata.command) {
747 case ATA_READ:
748 request->u.ata.command = ATA_READ48;
749 break;
750 case ATA_READ_MUL:
751 request->u.ata.command = ATA_READ_MUL48;
752 break;
753 case ATA_READ_DMA:
754 if (ch->flags & ATA_NO_48BIT_DMA) {
755 if (request->transfersize > DEV_BSIZE)
756 request->u.ata.command = ATA_READ_MUL48;
757 else
758 request->u.ata.command = ATA_READ48;
759 request->flags &= ~ATA_R_DMA;
760 }
761 else
762 request->u.ata.command = ATA_READ_DMA48;
763 break;
764 case ATA_READ_DMA_QUEUED:
765 if (ch->flags & ATA_NO_48BIT_DMA) {
766 if (request->transfersize > DEV_BSIZE)
767 request->u.ata.command = ATA_READ_MUL48;
768 else
769 request->u.ata.command = ATA_READ48;
770 request->flags &= ~ATA_R_DMA;
771 }
772 else
773 request->u.ata.command = ATA_READ_DMA_QUEUED48;
774 break;
775 case ATA_WRITE:
776 request->u.ata.command = ATA_WRITE48;
777 break;
778 case ATA_WRITE_MUL:
779 request->u.ata.command = ATA_WRITE_MUL48;
780 break;
781 case ATA_WRITE_DMA:
782 if (ch->flags & ATA_NO_48BIT_DMA) {
783 if (request->transfersize > DEV_BSIZE)
784 request->u.ata.command = ATA_WRITE_MUL48;
785 else
786 request->u.ata.command = ATA_WRITE48;
787 request->flags &= ~ATA_R_DMA;
788 }
789 else
790 request->u.ata.command = ATA_WRITE_DMA48;
791 break;
792 case ATA_WRITE_DMA_QUEUED:
793 if (ch->flags & ATA_NO_48BIT_DMA) {
794 if (request->transfersize > DEV_BSIZE)
795 request->u.ata.command = ATA_WRITE_MUL48;
796 else
797 request->u.ata.command = ATA_WRITE48;
798 request->u.ata.command = ATA_WRITE48;
799 request->flags &= ~ATA_R_DMA;
800 }
801 else
802 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
803 break;
804 case ATA_FLUSHCACHE:
805 request->u.ata.command = ATA_FLUSHCACHE48;
806 break;
807 case ATA_READ_NATIVE_MAX_ADDDRESS:
808 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
809 break;
810 case ATA_SET_MAX_ADDRESS:
811 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
812 break;
813 default:
814 return;
815 }
816 atadev->flags |= ATA_D_48BIT_ACTIVE;
817 }
818}
819
820void
821ata_udelay(int interval)
822{
823 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
824 if (1 || interval < (1000000/hz) || ata_delayed_attach)
825 DELAY(interval);
826 else
| 200
201 /* catch eventual request in ch->running */
202 mtx_lock(&ch->state_mtx);
203 if ((request = ch->running))
204 callout_stop(&request->callout);
205 ch->running = NULL;
206
207 /* unconditionally grap the channel lock */
208 ch->state |= ATA_STALL_QUEUE;
209 mtx_unlock(&ch->state_mtx);
210
211 /* reset the controller HW, the channel and device(s) */
212 ATA_RESET(dev);
213
214 /* reinit the children and delete any that fails */
215 if (!device_get_children(dev, &children, &nchildren)) {
216 mtx_lock(&Giant); /* newbus suckage it needs Giant */
217 for (i = 0; i < nchildren; i++) {
218 /* did any children go missing ? */
219 if (children[i] && device_is_attached(children[i]) &&
220 ATA_REINIT(children[i])) {
221 /*
222 * if we had a running request and its device matches
223 * this child we need to inform the request that the
224 * device is gone.
225 */
226 if (request && request->dev == children[i]) {
227 request->result = ENXIO;
228 device_printf(request->dev, "FAILURE - device detached\n");
229
230 /* if not timeout finish request here */
231 if (!(request->flags & ATA_R_TIMEOUT))
232 ata_finish(request);
233 request = NULL;
234 }
235 device_delete_child(dev, children[i]);
236 }
237 }
238 free(children, M_TEMP);
239 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
240 }
241
242 /* if we still have a good request put it on the queue again */
243 if (request && !(request->flags & ATA_R_TIMEOUT)) {
244 device_printf(request->dev,
245 "WARNING - %s requeued due to channel reset",
246 ata_cmd2str(request));
247 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
248 printf(" LBA=%ju", request->u.ata.lba);
249 printf("\n");
250 request->flags |= ATA_R_REQUEUE;
251 ata_queue_request(request);
252 }
253
254 /* we're done release the channel for new work */
255 mtx_lock(&ch->state_mtx);
256 ch->state = ATA_IDLE;
257 mtx_unlock(&ch->state_mtx);
258 ATA_LOCKING(dev, ATA_LF_UNLOCK);
259
260 if (bootverbose)
261 device_printf(dev, "reinit done ..\n");
262
263 /* kick off requests on the queue */
264 ata_start(dev);
265 return 0;
266}
267
268int
269ata_suspend(device_t dev)
270{
271 struct ata_channel *ch;
272
273 /* check for valid device */
274 if (!dev || !(ch = device_get_softc(dev)))
275 return ENXIO;
276
277 /* wait for the channel to be IDLE or detached before suspending */
278 while (ch->r_irq) {
279 mtx_lock(&ch->state_mtx);
280 if (ch->state == ATA_IDLE) {
281 ch->state = ATA_ACTIVE;
282 mtx_unlock(&ch->state_mtx);
283 break;
284 }
285 mtx_unlock(&ch->state_mtx);
286 tsleep(ch, PRIBIO, "atasusp", hz/10);
287 }
288 ATA_LOCKING(dev, ATA_LF_UNLOCK);
289 return 0;
290}
291
292int
293ata_resume(device_t dev)
294{
295 struct ata_channel *ch;
296 int error;
297
298 /* check for valid device */
299 if (!dev || !(ch = device_get_softc(dev)))
300 return ENXIO;
301
302 /* reinit the devices, we dont know what mode/state they are in */
303 error = ata_reinit(dev);
304
305 /* kick off requests on the queue */
306 ata_start(dev);
307 return error;
308}
309
310int
311ata_interrupt(void *data)
312{
313 struct ata_channel *ch = (struct ata_channel *)data;
314 struct ata_request *request;
315
316 mtx_lock(&ch->state_mtx);
317 do {
318 /* ignore interrupt if its not for us */
319 if (ch->hw.status && !ch->hw.status(ch->dev))
320 break;
321
322 /* do we have a running request */
323 if (!(request = ch->running))
324 break;
325
326 ATA_DEBUG_RQ(request, "interrupt");
327
328 /* safetycheck for the right state */
329 if (ch->state == ATA_IDLE) {
330 device_printf(request->dev, "interrupt on idle channel ignored\n");
331 break;
332 }
333
334 /*
335 * we have the HW locks, so end the transaction for this request
336 * if it finishes immediately otherwise wait for next interrupt
337 */
338 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
339 ch->running = NULL;
340 if (ch->state == ATA_ACTIVE)
341 ch->state = ATA_IDLE;
342 mtx_unlock(&ch->state_mtx);
343 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
344 ata_finish(request);
345 return 1;
346 }
347 } while (0);
348 mtx_unlock(&ch->state_mtx);
349 return 0;
350}
351
352/*
353 * device related interfaces
354 */
355static int
356ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
357 int32_t flag, struct thread *td)
358{
359 device_t device, *children;
360 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
361 int *value = (int *)data;
362 int i, nchildren, error = ENOTTY;
363
364 switch (cmd) {
365 case IOCATAGMAXCHANNEL:
366 *value = devclass_get_maxunit(ata_devclass);
367 error = 0;
368 break;
369
370 case IOCATAREINIT:
371 if (*value > devclass_get_maxunit(ata_devclass) ||
372 !(device = devclass_get_device(ata_devclass, *value)))
373 return ENXIO;
374 error = ata_reinit(device);
375 ata_start(device);
376 break;
377
378 case IOCATAATTACH:
379 if (*value > devclass_get_maxunit(ata_devclass) ||
380 !(device = devclass_get_device(ata_devclass, *value)))
381 return ENXIO;
382 /* XXX SOS should enable channel HW on controller */
383 error = ata_attach(device);
384 break;
385
386 case IOCATADETACH:
387 if (*value > devclass_get_maxunit(ata_devclass) ||
388 !(device = devclass_get_device(ata_devclass, *value)))
389 return ENXIO;
390 error = ata_detach(device);
391 /* XXX SOS should disable channel HW on controller */
392 break;
393
394 case IOCATADEVICES:
395 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
396 !(device = devclass_get_device(ata_devclass, devices->channel)))
397 return ENXIO;
398 bzero(devices->name[0], 32);
399 bzero(&devices->params[0], sizeof(struct ata_params));
400 bzero(devices->name[1], 32);
401 bzero(&devices->params[1], sizeof(struct ata_params));
402 if (!device_get_children(device, &children, &nchildren)) {
403 for (i = 0; i < nchildren; i++) {
404 if (children[i] && device_is_attached(children[i])) {
405 struct ata_device *atadev = device_get_softc(children[i]);
406
407 if (atadev->unit == ATA_MASTER) {
408 strncpy(devices->name[0],
409 device_get_nameunit(children[i]), 32);
410 bcopy(&atadev->param, &devices->params[0],
411 sizeof(struct ata_params));
412 }
413 if (atadev->unit == ATA_SLAVE) {
414 strncpy(devices->name[1],
415 device_get_nameunit(children[i]), 32);
416 bcopy(&atadev->param, &devices->params[1],
417 sizeof(struct ata_params));
418 }
419 }
420 }
421 free(children, M_TEMP);
422 error = 0;
423 }
424 else
425 error = ENODEV;
426 break;
427
428 default:
429 if (ata_raid_ioctl_func)
430 error = ata_raid_ioctl_func(cmd, data);
431 }
432 return error;
433}
434
435int
436ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
437{
438 struct ata_device *atadev = device_get_softc(dev);
439 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
440 struct ata_params *params = (struct ata_params *)data;
441 int *mode = (int *)data;
442 struct ata_request *request;
443 caddr_t buf;
444 int error;
445
446 switch (cmd) {
447 case IOCATAREQUEST:
448 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
449 return ENOMEM;
450 }
451 if (!(request = ata_alloc_request())) {
452 free(buf, M_ATA);
453 return ENOMEM;
454 }
455 if (ioc_request->flags & ATA_CMD_WRITE) {
456 error = copyin(ioc_request->data, buf, ioc_request->count);
457 if (error) {
458 free(buf, M_ATA);
459 ata_free_request(request);
460 return error;
461 }
462 }
463 request->dev = dev;
464 if (ioc_request->flags & ATA_CMD_ATAPI) {
465 request->flags = ATA_R_ATAPI;
466 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
467 }
468 else {
469 request->u.ata.command = ioc_request->u.ata.command;
470 request->u.ata.feature = ioc_request->u.ata.feature;
471 request->u.ata.lba = ioc_request->u.ata.lba;
472 request->u.ata.count = ioc_request->u.ata.count;
473 }
474 request->timeout = ioc_request->timeout;
475 request->data = buf;
476 request->bytecount = ioc_request->count;
477 request->transfersize = request->bytecount;
478 if (ioc_request->flags & ATA_CMD_CONTROL)
479 request->flags |= ATA_R_CONTROL;
480 if (ioc_request->flags & ATA_CMD_READ)
481 request->flags |= ATA_R_READ;
482 if (ioc_request->flags & ATA_CMD_WRITE)
483 request->flags |= ATA_R_WRITE;
484 ata_queue_request(request);
485 if (request->flags & ATA_R_ATAPI) {
486 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
487 sizeof(struct atapi_sense));
488 }
489 else {
490 ioc_request->u.ata.command = request->u.ata.command;
491 ioc_request->u.ata.feature = request->u.ata.feature;
492 ioc_request->u.ata.lba = request->u.ata.lba;
493 ioc_request->u.ata.count = request->u.ata.count;
494 }
495 ioc_request->error = request->result;
496 if (ioc_request->flags & ATA_CMD_READ)
497 error = copyout(buf, ioc_request->data, ioc_request->count);
498 else
499 error = 0;
500 free(buf, M_ATA);
501 ata_free_request(request);
502 return error;
503
504 case IOCATAGPARM:
505 ata_getparam(atadev, 0);
506 bcopy(&atadev->param, params, sizeof(struct ata_params));
507 return 0;
508
509 case IOCATASMODE:
510 atadev->mode = *mode;
511 ATA_SETMODE(device_get_parent(dev), dev);
512 return 0;
513
514 case IOCATAGMODE:
515 *mode = atadev->mode;
516 return 0;
517 default:
518 return ENOTTY;
519 }
520}
521
522static void
523ata_boot_attach(void)
524{
525 struct ata_channel *ch;
526 int ctlr;
527
528 mtx_lock(&Giant); /* newbus suckage it needs Giant */
529
530 /* kick of probe and attach on all channels */
531 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
532 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
533 ata_identify(ch->dev);
534 }
535 }
536
537 /* release the hook that got us here, we are only needed once during boot */
538 if (ata_delayed_attach) {
539 config_intrhook_disestablish(ata_delayed_attach);
540 free(ata_delayed_attach, M_TEMP);
541 ata_delayed_attach = NULL;
542 }
543
544 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
545}
546
547
548/*
549 * misc support functions
550 */
551static device_t
552ata_add_child(device_t parent, struct ata_device *atadev, int unit)
553{
554 device_t child;
555
556 if ((child = device_add_child(parent, NULL, unit))) {
557 device_set_softc(child, atadev);
558 device_quiet(child);
559 atadev->dev = child;
560 atadev->max_iosize = DEV_BSIZE;
561 atadev->mode = ATA_PIO_MAX;
562 }
563 return child;
564}
565
566static int
567ata_getparam(struct ata_device *atadev, int init)
568{
569 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
570 struct ata_request *request;
571 u_int8_t command = 0;
572 int error = ENOMEM, retries = 2;
573
574 if (ch->devices &
575 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
576 command = ATA_ATA_IDENTIFY;
577 if (ch->devices &
578 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
579 command = ATA_ATAPI_IDENTIFY;
580 if (!command)
581 return ENXIO;
582
583 while (retries-- > 0 && error) {
584 if (!(request = ata_alloc_request()))
585 break;
586 request->dev = atadev->dev;
587 request->timeout = 1;
588 request->retries = 0;
589 request->u.ata.command = command;
590 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
591 request->data = (void *)&atadev->param;
592 request->bytecount = sizeof(struct ata_params);
593 request->donecount = 0;
594 request->transfersize = DEV_BSIZE;
595 ata_queue_request(request);
596 error = request->result;
597 ata_free_request(request);
598 }
599
600 if (!error && (isprint(atadev->param.model[0]) ||
601 isprint(atadev->param.model[1]))) {
602 struct ata_params *atacap = &atadev->param;
603 char buffer[64];
604 int16_t *ptr;
605
606 for (ptr = (int16_t *)atacap;
607 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
608 *ptr = le16toh(*ptr);
609 }
610 if (!(!strncmp(atacap->model, "FX", 2) ||
611 !strncmp(atacap->model, "NEC", 3) ||
612 !strncmp(atacap->model, "Pioneer", 7) ||
613 !strncmp(atacap->model, "SHARP", 5))) {
614 bswap(atacap->model, sizeof(atacap->model));
615 bswap(atacap->revision, sizeof(atacap->revision));
616 bswap(atacap->serial, sizeof(atacap->serial));
617 }
618 btrim(atacap->model, sizeof(atacap->model));
619 bpack(atacap->model, atacap->model, sizeof(atacap->model));
620 btrim(atacap->revision, sizeof(atacap->revision));
621 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
622 btrim(atacap->serial, sizeof(atacap->serial));
623 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
624
625 if (bootverbose)
626 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
627 device_get_unit(ch->dev),
628 atadev->unit == ATA_MASTER ? "master" : "slave",
629 ata_mode2str(ata_pmode(atacap)),
630 ata_mode2str(ata_wmode(atacap)),
631 ata_mode2str(ata_umode(atacap)),
632 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
633
634 if (init) {
635 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
636 device_set_desc_copy(atadev->dev, buffer);
637 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
638 (atadev->param.config != ATA_CFA_MAGIC1) &&
639 (atadev->param.config != ATA_CFA_MAGIC2)) {
640 if (atapi_dma && ch->dma &&
641 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
642 ata_umode(&atadev->param) >= ATA_UDMA2)
643 atadev->mode = ATA_DMA_MAX;
644 }
645 else {
646 if (ata_dma && ch->dma &&
647 (ata_umode(&atadev->param) > 0 ||
648 ata_wmode(&atadev->param) > 0))
649 atadev->mode = ATA_DMA_MAX;
650 }
651 }
652 }
653 else {
654 if (!error)
655 error = ENXIO;
656 }
657 return error;
658}
659
660int
661ata_identify(device_t dev)
662{
663 struct ata_channel *ch = device_get_softc(dev);
664 struct ata_device *master = NULL, *slave = NULL;
665 device_t master_child = NULL, slave_child = NULL;
666 int master_unit = -1, slave_unit = -1;
667
668 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
669 if (!(master = malloc(sizeof(struct ata_device),
670 M_ATA, M_NOWAIT | M_ZERO))) {
671 device_printf(dev, "out of memory\n");
672 return ENOMEM;
673 }
674 master->unit = ATA_MASTER;
675 }
676 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
677 if (!(slave = malloc(sizeof(struct ata_device),
678 M_ATA, M_NOWAIT | M_ZERO))) {
679 free(master, M_ATA);
680 device_printf(dev, "out of memory\n");
681 return ENOMEM;
682 }
683 slave->unit = ATA_SLAVE;
684 }
685
686#ifdef ATA_STATIC_ID
687 if (ch->devices & ATA_ATA_MASTER)
688 master_unit = (device_get_unit(dev) << 1);
689#endif
690 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
691 free(master, M_ATA);
692 master = NULL;
693 }
694#ifdef ATA_STATIC_ID
695 if (ch->devices & ATA_ATA_SLAVE)
696 slave_unit = (device_get_unit(dev) << 1) + 1;
697#endif
698 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
699 free(slave, M_ATA);
700 slave = NULL;
701 }
702
703 if (slave && ata_getparam(slave, 1)) {
704 device_delete_child(dev, slave_child);
705 free(slave, M_ATA);
706 }
707 if (master && ata_getparam(master, 1)) {
708 device_delete_child(dev, master_child);
709 free(master, M_ATA);
710 }
711
712 bus_generic_probe(dev);
713 bus_generic_attach(dev);
714 return 0;
715}
716
717void
718ata_default_registers(device_t dev)
719{
720 struct ata_channel *ch = device_get_softc(dev);
721
722 /* fill in the defaults from whats setup already */
723 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
724 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
725 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
726 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
727 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
728 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
729 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
730 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
731}
732
733void
734ata_modify_if_48bit(struct ata_request *request)
735{
736 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
737 struct ata_device *atadev = device_get_softc(request->dev);
738
739 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
740
741 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
742 request->u.ata.count > 256) &&
743 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
744
745 /* translate command into 48bit version */
746 switch (request->u.ata.command) {
747 case ATA_READ:
748 request->u.ata.command = ATA_READ48;
749 break;
750 case ATA_READ_MUL:
751 request->u.ata.command = ATA_READ_MUL48;
752 break;
753 case ATA_READ_DMA:
754 if (ch->flags & ATA_NO_48BIT_DMA) {
755 if (request->transfersize > DEV_BSIZE)
756 request->u.ata.command = ATA_READ_MUL48;
757 else
758 request->u.ata.command = ATA_READ48;
759 request->flags &= ~ATA_R_DMA;
760 }
761 else
762 request->u.ata.command = ATA_READ_DMA48;
763 break;
764 case ATA_READ_DMA_QUEUED:
765 if (ch->flags & ATA_NO_48BIT_DMA) {
766 if (request->transfersize > DEV_BSIZE)
767 request->u.ata.command = ATA_READ_MUL48;
768 else
769 request->u.ata.command = ATA_READ48;
770 request->flags &= ~ATA_R_DMA;
771 }
772 else
773 request->u.ata.command = ATA_READ_DMA_QUEUED48;
774 break;
775 case ATA_WRITE:
776 request->u.ata.command = ATA_WRITE48;
777 break;
778 case ATA_WRITE_MUL:
779 request->u.ata.command = ATA_WRITE_MUL48;
780 break;
781 case ATA_WRITE_DMA:
782 if (ch->flags & ATA_NO_48BIT_DMA) {
783 if (request->transfersize > DEV_BSIZE)
784 request->u.ata.command = ATA_WRITE_MUL48;
785 else
786 request->u.ata.command = ATA_WRITE48;
787 request->flags &= ~ATA_R_DMA;
788 }
789 else
790 request->u.ata.command = ATA_WRITE_DMA48;
791 break;
792 case ATA_WRITE_DMA_QUEUED:
793 if (ch->flags & ATA_NO_48BIT_DMA) {
794 if (request->transfersize > DEV_BSIZE)
795 request->u.ata.command = ATA_WRITE_MUL48;
796 else
797 request->u.ata.command = ATA_WRITE48;
798 request->u.ata.command = ATA_WRITE48;
799 request->flags &= ~ATA_R_DMA;
800 }
801 else
802 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
803 break;
804 case ATA_FLUSHCACHE:
805 request->u.ata.command = ATA_FLUSHCACHE48;
806 break;
807 case ATA_READ_NATIVE_MAX_ADDDRESS:
808 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
809 break;
810 case ATA_SET_MAX_ADDRESS:
811 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
812 break;
813 default:
814 return;
815 }
816 atadev->flags |= ATA_D_48BIT_ACTIVE;
817 }
818}
819
820void
821ata_udelay(int interval)
822{
823 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
824 if (1 || interval < (1000000/hz) || ata_delayed_attach)
825 DELAY(interval);
826 else
|
827 tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz));
| 827 pause("ataslp", interval/(1000000/hz));
|
828}
829
830char *
831ata_mode2str(int mode)
832{
833 switch (mode) {
834 case -1: return "UNSUPPORTED";
835 case ATA_PIO0: return "PIO0";
836 case ATA_PIO1: return "PIO1";
837 case ATA_PIO2: return "PIO2";
838 case ATA_PIO3: return "PIO3";
839 case ATA_PIO4: return "PIO4";
840 case ATA_WDMA0: return "WDMA0";
841 case ATA_WDMA1: return "WDMA1";
842 case ATA_WDMA2: return "WDMA2";
843 case ATA_UDMA0: return "UDMA16";
844 case ATA_UDMA1: return "UDMA25";
845 case ATA_UDMA2: return "UDMA33";
846 case ATA_UDMA3: return "UDMA40";
847 case ATA_UDMA4: return "UDMA66";
848 case ATA_UDMA5: return "UDMA100";
849 case ATA_UDMA6: return "UDMA133";
850 case ATA_SA150: return "SATA150";
851 case ATA_SA300: return "SATA300";
852 case ATA_USB: return "USB";
853 case ATA_USB1: return "USB1";
854 case ATA_USB2: return "USB2";
855 default:
856 if (mode & ATA_DMA_MASK)
857 return "BIOSDMA";
858 else
859 return "BIOSPIO";
860 }
861}
862
863int
864ata_pmode(struct ata_params *ap)
865{
866 if (ap->atavalid & ATA_FLAG_64_70) {
867 if (ap->apiomodes & 0x02)
868 return ATA_PIO4;
869 if (ap->apiomodes & 0x01)
870 return ATA_PIO3;
871 }
872 if (ap->mwdmamodes & 0x04)
873 return ATA_PIO4;
874 if (ap->mwdmamodes & 0x02)
875 return ATA_PIO3;
876 if (ap->mwdmamodes & 0x01)
877 return ATA_PIO2;
878 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
879 return ATA_PIO2;
880 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
881 return ATA_PIO1;
882 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
883 return ATA_PIO0;
884 return ATA_PIO0;
885}
886
887int
888ata_wmode(struct ata_params *ap)
889{
890 if (ap->mwdmamodes & 0x04)
891 return ATA_WDMA2;
892 if (ap->mwdmamodes & 0x02)
893 return ATA_WDMA1;
894 if (ap->mwdmamodes & 0x01)
895 return ATA_WDMA0;
896 return -1;
897}
898
899int
900ata_umode(struct ata_params *ap)
901{
902 if (ap->atavalid & ATA_FLAG_88) {
903 if (ap->udmamodes & 0x40)
904 return ATA_UDMA6;
905 if (ap->udmamodes & 0x20)
906 return ATA_UDMA5;
907 if (ap->udmamodes & 0x10)
908 return ATA_UDMA4;
909 if (ap->udmamodes & 0x08)
910 return ATA_UDMA3;
911 if (ap->udmamodes & 0x04)
912 return ATA_UDMA2;
913 if (ap->udmamodes & 0x02)
914 return ATA_UDMA1;
915 if (ap->udmamodes & 0x01)
916 return ATA_UDMA0;
917 }
918 return -1;
919}
920
921int
922ata_limit_mode(device_t dev, int mode, int maxmode)
923{
924 struct ata_device *atadev = device_get_softc(dev);
925
926 if (maxmode && mode > maxmode)
927 mode = maxmode;
928
929 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
930 return min(mode, ata_umode(&atadev->param));
931
932 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
933 return min(mode, ata_wmode(&atadev->param));
934
935 if (mode > ata_pmode(&atadev->param))
936 return min(mode, ata_pmode(&atadev->param));
937
938 return mode;
939}
940
941static void
942bswap(int8_t *buf, int len)
943{
944 u_int16_t *ptr = (u_int16_t*)(buf + len);
945
946 while (--ptr >= (u_int16_t*)buf)
947 *ptr = ntohs(*ptr);
948}
949
950static void
951btrim(int8_t *buf, int len)
952{
953 int8_t *ptr;
954
955 for (ptr = buf; ptr < buf+len; ++ptr)
956 if (!*ptr || *ptr == '_')
957 *ptr = ' ';
958 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
959 *ptr = 0;
960}
961
962static void
963bpack(int8_t *src, int8_t *dst, int len)
964{
965 int i, j, blank;
966
967 for (i = j = blank = 0 ; i < len; i++) {
968 if (blank && src[i] == ' ') continue;
969 if (blank && src[i] != ' ') {
970 dst[j++] = src[i];
971 blank = 0;
972 continue;
973 }
974 if (src[i] == ' ') {
975 blank = 1;
976 if (i == 0)
977 continue;
978 }
979 dst[j++] = src[i];
980 }
981 if (j < len)
982 dst[j] = 0x00;
983}
984
985
986/*
987 * module handeling
988 */
989static int
990ata_module_event_handler(module_t mod, int what, void *arg)
991{
992 static struct cdev *atacdev;
993
994 switch (what) {
995 case MOD_LOAD:
996 /* register controlling device */
997 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
998
999 if (cold) {
1000 /* register boot attach to be run when interrupts are enabled */
1001 if (!(ata_delayed_attach = (struct intr_config_hook *)
1002 malloc(sizeof(struct intr_config_hook),
1003 M_TEMP, M_NOWAIT | M_ZERO))) {
1004 printf("ata: malloc of delayed attach hook failed\n");
1005 return EIO;
1006 }
1007 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1008 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1009 printf("ata: config_intrhook_establish failed\n");
1010 free(ata_delayed_attach, M_TEMP);
1011 }
1012 }
1013 return 0;
1014
1015 case MOD_UNLOAD:
1016 /* deregister controlling device */
1017 destroy_dev(atacdev);
1018 return 0;
1019
1020 default:
1021 return EOPNOTSUPP;
1022 }
1023}
1024
1025static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1026DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1027MODULE_VERSION(ata, 1);
1028
1029static void
1030ata_init(void)
1031{
1032 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1033 NULL, NULL, NULL, NULL, 0, 0);
1034 ata_composite_zone = uma_zcreate("ata_composite",
1035 sizeof(struct ata_composite),
1036 NULL, NULL, NULL, NULL, 0, 0);
1037}
1038SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1039
1040static void
1041ata_uninit(void)
1042{
1043 uma_zdestroy(ata_composite_zone);
1044 uma_zdestroy(ata_request_zone);
1045}
1046SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);
| 828}
829
830char *
831ata_mode2str(int mode)
832{
833 switch (mode) {
834 case -1: return "UNSUPPORTED";
835 case ATA_PIO0: return "PIO0";
836 case ATA_PIO1: return "PIO1";
837 case ATA_PIO2: return "PIO2";
838 case ATA_PIO3: return "PIO3";
839 case ATA_PIO4: return "PIO4";
840 case ATA_WDMA0: return "WDMA0";
841 case ATA_WDMA1: return "WDMA1";
842 case ATA_WDMA2: return "WDMA2";
843 case ATA_UDMA0: return "UDMA16";
844 case ATA_UDMA1: return "UDMA25";
845 case ATA_UDMA2: return "UDMA33";
846 case ATA_UDMA3: return "UDMA40";
847 case ATA_UDMA4: return "UDMA66";
848 case ATA_UDMA5: return "UDMA100";
849 case ATA_UDMA6: return "UDMA133";
850 case ATA_SA150: return "SATA150";
851 case ATA_SA300: return "SATA300";
852 case ATA_USB: return "USB";
853 case ATA_USB1: return "USB1";
854 case ATA_USB2: return "USB2";
855 default:
856 if (mode & ATA_DMA_MASK)
857 return "BIOSDMA";
858 else
859 return "BIOSPIO";
860 }
861}
862
863int
864ata_pmode(struct ata_params *ap)
865{
866 if (ap->atavalid & ATA_FLAG_64_70) {
867 if (ap->apiomodes & 0x02)
868 return ATA_PIO4;
869 if (ap->apiomodes & 0x01)
870 return ATA_PIO3;
871 }
872 if (ap->mwdmamodes & 0x04)
873 return ATA_PIO4;
874 if (ap->mwdmamodes & 0x02)
875 return ATA_PIO3;
876 if (ap->mwdmamodes & 0x01)
877 return ATA_PIO2;
878 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
879 return ATA_PIO2;
880 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
881 return ATA_PIO1;
882 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
883 return ATA_PIO0;
884 return ATA_PIO0;
885}
886
887int
888ata_wmode(struct ata_params *ap)
889{
890 if (ap->mwdmamodes & 0x04)
891 return ATA_WDMA2;
892 if (ap->mwdmamodes & 0x02)
893 return ATA_WDMA1;
894 if (ap->mwdmamodes & 0x01)
895 return ATA_WDMA0;
896 return -1;
897}
898
899int
900ata_umode(struct ata_params *ap)
901{
902 if (ap->atavalid & ATA_FLAG_88) {
903 if (ap->udmamodes & 0x40)
904 return ATA_UDMA6;
905 if (ap->udmamodes & 0x20)
906 return ATA_UDMA5;
907 if (ap->udmamodes & 0x10)
908 return ATA_UDMA4;
909 if (ap->udmamodes & 0x08)
910 return ATA_UDMA3;
911 if (ap->udmamodes & 0x04)
912 return ATA_UDMA2;
913 if (ap->udmamodes & 0x02)
914 return ATA_UDMA1;
915 if (ap->udmamodes & 0x01)
916 return ATA_UDMA0;
917 }
918 return -1;
919}
920
921int
922ata_limit_mode(device_t dev, int mode, int maxmode)
923{
924 struct ata_device *atadev = device_get_softc(dev);
925
926 if (maxmode && mode > maxmode)
927 mode = maxmode;
928
929 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
930 return min(mode, ata_umode(&atadev->param));
931
932 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
933 return min(mode, ata_wmode(&atadev->param));
934
935 if (mode > ata_pmode(&atadev->param))
936 return min(mode, ata_pmode(&atadev->param));
937
938 return mode;
939}
940
941static void
942bswap(int8_t *buf, int len)
943{
944 u_int16_t *ptr = (u_int16_t*)(buf + len);
945
946 while (--ptr >= (u_int16_t*)buf)
947 *ptr = ntohs(*ptr);
948}
949
950static void
951btrim(int8_t *buf, int len)
952{
953 int8_t *ptr;
954
955 for (ptr = buf; ptr < buf+len; ++ptr)
956 if (!*ptr || *ptr == '_')
957 *ptr = ' ';
958 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
959 *ptr = 0;
960}
961
962static void
963bpack(int8_t *src, int8_t *dst, int len)
964{
965 int i, j, blank;
966
967 for (i = j = blank = 0 ; i < len; i++) {
968 if (blank && src[i] == ' ') continue;
969 if (blank && src[i] != ' ') {
970 dst[j++] = src[i];
971 blank = 0;
972 continue;
973 }
974 if (src[i] == ' ') {
975 blank = 1;
976 if (i == 0)
977 continue;
978 }
979 dst[j++] = src[i];
980 }
981 if (j < len)
982 dst[j] = 0x00;
983}
984
985
986/*
987 * module handeling
988 */
989static int
990ata_module_event_handler(module_t mod, int what, void *arg)
991{
992 static struct cdev *atacdev;
993
994 switch (what) {
995 case MOD_LOAD:
996 /* register controlling device */
997 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
998
999 if (cold) {
1000 /* register boot attach to be run when interrupts are enabled */
1001 if (!(ata_delayed_attach = (struct intr_config_hook *)
1002 malloc(sizeof(struct intr_config_hook),
1003 M_TEMP, M_NOWAIT | M_ZERO))) {
1004 printf("ata: malloc of delayed attach hook failed\n");
1005 return EIO;
1006 }
1007 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1008 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1009 printf("ata: config_intrhook_establish failed\n");
1010 free(ata_delayed_attach, M_TEMP);
1011 }
1012 }
1013 return 0;
1014
1015 case MOD_UNLOAD:
1016 /* deregister controlling device */
1017 destroy_dev(atacdev);
1018 return 0;
1019
1020 default:
1021 return EOPNOTSUPP;
1022 }
1023}
1024
1025static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1026DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1027MODULE_VERSION(ata, 1);
1028
1029static void
1030ata_init(void)
1031{
1032 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1033 NULL, NULL, NULL, NULL, 0, 0);
1034 ata_composite_zone = uma_zcreate("ata_composite",
1035 sizeof(struct ata_composite),
1036 NULL, NULL, NULL, NULL, 0, 0);
1037}
1038SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1039
1040static void
1041ata_uninit(void)
1042{
1043 uma_zdestroy(ata_composite_zone);
1044 uma_zdestroy(ata_request_zone);
1045}
1046SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);
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