1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /*
27 * audioixp Audio Driver
28 *
29 * This driver supports audio hardware integrated in ATI IXP400 chipset.
30 *
31 * The IXP400 audio core is an AC'97 controller, which has independent
32 * channels for PCM in, PCM out. The AC'97 controller is a PCI bus master
33 * with scatter/gather support. Each channel has a DMA engine. Currently,
34 * we use only the PCM in and PCM out channels. Each DMA engine uses one
35 * buffer descriptor list. Each entry contains a pointer to a data buffer,
36 * status, length of the buffer being pointed to and the pointer to the next
37 * entry. Length of the buffer is in number of bytes. Interrupt will be
38 * triggered each time a entry is processed by hardware.
39 *
40 * System power management is not yet supported by the driver.
41 *
42 * NOTE:
43 * This driver depends on the misc/ac97 and drv/audio modules being
44 * loaded first.
45 */
46 #include <sys/types.h>
47 #include <sys/modctl.h>
48 #include <sys/kmem.h>
49 #include <sys/conf.h>
50 #include <sys/ddi.h>
51 #include <sys/sunddi.h>
52 #include <sys/pci.h>
53 #include <sys/note.h>
54 #include <sys/audio/audio_driver.h>
55 #include <sys/audio/ac97.h>
56 #include "audioixp.h"
57
58 /*
59 * Module linkage routines for the kernel
60 */
61 static int audioixp_ddi_attach(dev_info_t *, ddi_attach_cmd_t);
62 static int audioixp_ddi_detach(dev_info_t *, ddi_detach_cmd_t);
63 static int audioixp_quiesce(dev_info_t *);
64 static int audioixp_resume(dev_info_t *);
65 static int audioixp_suspend(dev_info_t *);
66
67 /*
68 * Entry point routine prototypes
69 */
70 static int audioixp_open(void *, int, unsigned *, caddr_t *);
71 static void audioixp_close(void *);
72 static int audioixp_start(void *);
73 static void audioixp_stop(void *);
74 static int audioixp_format(void *);
75 static int audioixp_channels(void *);
76 static int audioixp_rate(void *);
77 static uint64_t audioixp_count(void *);
78 static void audioixp_sync(void *, unsigned);
79
80 static audio_engine_ops_t audioixp_engine_ops = {
81 AUDIO_ENGINE_VERSION,
82 audioixp_open,
83 audioixp_close,
84 audioixp_start,
85 audioixp_stop,
86 audioixp_count,
87 audioixp_format,
88 audioixp_channels,
89 audioixp_rate,
90 audioixp_sync,
91 NULL,
92 NULL,
93 NULL
94 };
95
96 /*
97 * We drive audioixp in stereo only, so we don't want to display controls
98 * that are used for multichannel codecs. Note that this multichannel
99 * configuration limitation is a problem for audioixp devices.
100 */
101 const char *audioixp_remove_ac97[] = {
102 AUDIO_CTRL_ID_CENTER,
103 AUDIO_CTRL_ID_LFE,
104 AUDIO_CTRL_ID_SURROUND,
105 AUDIO_CTRL_ID_JACK1,
106 AUDIO_CTRL_ID_JACK2,
107 };
108
109 /*
110 * Local Routine Prototypes
111 */
112 static int audioixp_attach(dev_info_t *);
113 static int audioixp_detach(dev_info_t *);
114 static int audioixp_alloc_port(audioixp_state_t *, int);
115 static void audioixp_update_port(audioixp_port_t *);
116
117 static int audioixp_codec_sync(audioixp_state_t *);
118 static void audioixp_wr97(void *, uint8_t, uint16_t);
119 static uint16_t audioixp_rd97(void *, uint8_t);
120 static int audioixp_reset_ac97(audioixp_state_t *);
121 static int audioixp_map_regs(audioixp_state_t *);
122 static void audioixp_unmap_regs(audioixp_state_t *);
123 static int audioixp_chip_init(audioixp_state_t *);
124 static void audioixp_destroy(audioixp_state_t *);
125
126 /*
127 * Global variables, but used only by this file.
128 */
129
130 /*
131 * DDI Structures
132 */
133
134 /* Device operations structure */
135 static struct dev_ops audioixp_dev_ops = {
136 DEVO_REV, /* devo_rev */
137 0, /* devo_refcnt */
138 NULL, /* devo_getinfo */
139 nulldev, /* devo_identify - obsolete */
140 nulldev, /* devo_probe */
141 audioixp_ddi_attach, /* devo_attach */
142 audioixp_ddi_detach, /* devo_detach */
143 nodev, /* devo_reset */
144 NULL, /* devi_cb_ops */
145 NULL, /* devo_bus_ops */
146 NULL, /* devo_power */
147 audioixp_quiesce, /* devo_quiesce */
148 };
149
150 /* Linkage structure for loadable drivers */
151 static struct modldrv audioixp_modldrv = {
152 &mod_driverops, /* drv_modops */
153 IXP_MOD_NAME, /* drv_linkinfo */
154 &audioixp_dev_ops, /* drv_dev_ops */
155 };
156
157 /* Module linkage structure */
158 static struct modlinkage audioixp_modlinkage = {
159 MODREV_1, /* ml_rev */
160 (void *)&audioixp_modldrv, /* ml_linkage */
161 NULL /* NULL terminates the list */
162 };
163
164 /*
165 * device access attributes for register mapping
166 */
167 static struct ddi_device_acc_attr dev_attr = {
168 DDI_DEVICE_ATTR_V0,
169 DDI_STRUCTURE_LE_ACC,
170 DDI_STRICTORDER_ACC
171 };
172 static struct ddi_device_acc_attr buf_attr = {
173 DDI_DEVICE_ATTR_V0,
174 DDI_NEVERSWAP_ACC,
175 DDI_STRICTORDER_ACC
176 };
177
178 /*
179 * DMA attributes of buffer descriptor list
180 */
181 static ddi_dma_attr_t bdlist_dma_attr = {
182 DMA_ATTR_V0, /* version */
183 0, /* addr_lo */
184 0xffffffff, /* addr_hi */
185 0x0000ffff, /* count_max */
186 8, /* align, BDL must be aligned on a 8-byte boundary */
187 0x3c, /* burstsize */
188 8, /* minxfer, set to the size of a BDlist entry */
189 0x0000ffff, /* maxxfer */
190 0x00000fff, /* seg, set to the RAM pagesize of intel platform */
191 1, /* sgllen, there's no scatter-gather list */
192 8, /* granular, set to the value of minxfer */
193 0 /* flags, use virtual address */
194 };
195
196 /*
197 * DMA attributes of buffers to be used to receive/send audio data
198 */
199 static ddi_dma_attr_t sample_buf_dma_attr = {
200 DMA_ATTR_V0,
201 0, /* addr_lo */
202 0xffffffff, /* addr_hi */
203 0x0001fffe, /* count_max */
204 4, /* align, data buffer is aligned on a 2-byte boundary */
205 0x3c, /* burstsize */
206 4, /* minxfer, set to the size of a sample data */
207 0x0001ffff, /* maxxfer */
208 0x0001ffff, /* seg */
209 1, /* sgllen, no scatter-gather */
210 4, /* granular, set to the value of minxfer */
211 0, /* flags, use virtual address */
212 };
213
214 /*
215 * _init()
216 *
217 * Description:
218 * Driver initialization, called when driver is first loaded.
219 * This is how access is initially given to all the static structures.
220 *
221 * Arguments:
222 * None
223 *
224 * Returns:
225 * ddi_soft_state_init() status, see ddi_soft_state_init(9f), or
226 * mod_install() status, see mod_install(9f)
227 */
228 int
_init(void)229 _init(void)
230 {
231 int error;
232
233 audio_init_ops(&audioixp_dev_ops, IXP_NAME);
234
235 if ((error = mod_install(&audioixp_modlinkage)) != 0) {
236 audio_fini_ops(&audioixp_dev_ops);
237 }
238
239 return (error);
240 }
241
242 /*
243 * _fini()
244 *
245 * Description:
246 * Module de-initialization, called when the driver is to be unloaded.
247 *
248 * Arguments:
249 * None
250 *
251 * Returns:
252 * mod_remove() status, see mod_remove(9f)
253 */
254 int
_fini(void)255 _fini(void)
256 {
257 int error;
258
259 if ((error = mod_remove(&audioixp_modlinkage)) != 0) {
260 return (error);
261 }
262
263 audio_fini_ops(&audioixp_dev_ops);
264
265 return (0);
266 }
267
268 /*
269 * _info()
270 *
271 * Description:
272 * Module information, returns information about the driver.
273 *
274 * Arguments:
275 * modinfo *modinfop Pointer to the opaque modinfo structure
276 *
277 * Returns:
278 * mod_info() status, see mod_info(9f)
279 */
280 int
_info(struct modinfo * modinfop)281 _info(struct modinfo *modinfop)
282 {
283 return (mod_info(&audioixp_modlinkage, modinfop));
284 }
285
286
287 /* ******************* Driver Entry Points ********************************* */
288
289 /*
290 * audioixp_ddi_attach()
291 *
292 * Description:
293 * Attach an instance of the audioixp driver.
294 *
295 * Arguments:
296 * dev_info_t *dip Pointer to the device's dev_info struct
297 * ddi_attach_cmd_t cmd Attach command
298 *
299 * Returns:
300 * DDI_SUCCESS The driver was initialized properly
301 * DDI_FAILURE The driver couldn't be initialized properly
302 */
303 static int
audioixp_ddi_attach(dev_info_t * dip,ddi_attach_cmd_t cmd)304 audioixp_ddi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
305 {
306 switch (cmd) {
307 case DDI_ATTACH:
308 return (audioixp_attach(dip));
309
310 /*
311 * now, no suspend/resume supported. we'll do it in the future.
312 */
313 case DDI_RESUME:
314 return (audioixp_resume(dip));
315 default:
316 return (DDI_FAILURE);
317 }
318 }
319
320 /*
321 * audioixp_ddi_detach()
322 *
323 * Description:
324 * Detach an instance of the audioixp driver.
325 *
326 * Arguments:
327 * dev_info_t *dip Pointer to the device's dev_info struct
328 * ddi_detach_cmd_t cmd Detach command
329 *
330 * Returns:
331 * DDI_SUCCESS The driver was detached
332 * DDI_FAILURE The driver couldn't be detached
333 */
334 static int
audioixp_ddi_detach(dev_info_t * dip,ddi_detach_cmd_t cmd)335 audioixp_ddi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
336 {
337 switch (cmd) {
338 case DDI_DETACH:
339 return (audioixp_detach(dip));
340
341 /*
342 * now, no suspend/resume supported. we'll do it in the future.
343 */
344 case DDI_SUSPEND:
345 return (audioixp_suspend(dip));
346
347 default:
348 return (DDI_FAILURE);
349 }
350 }
351
352 /*
353 * quiesce(9E) entry point.
354 *
355 * This function is called when the system is single-threaded at high
356 * PIL with preemption disabled. Therefore, this function must not be blocked.
357 *
358 * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
359 * DDI_FAILURE indicates an error condition and should almost never happen.
360 */
361 static int
audioixp_quiesce(dev_info_t * dip)362 audioixp_quiesce(dev_info_t *dip)
363 {
364 audioixp_state_t *statep;
365
366 statep = ddi_get_driver_private(dip);
367 ASSERT(statep != NULL);
368
369 /* stop DMA engines */
370 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT);
371 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT_DMA);
372 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN);
373 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN_DMA);
374
375 return (DDI_SUCCESS);
376 }
377
378 static int
audioixp_suspend(dev_info_t * dip)379 audioixp_suspend(dev_info_t *dip)
380 {
381 audioixp_state_t *statep;
382
383 statep = ddi_get_driver_private(dip);
384 ASSERT(statep != NULL);
385
386 audio_dev_suspend(statep->adev);
387
388 return (DDI_SUCCESS);
389 }
390
391 static int
audioixp_resume(dev_info_t * dip)392 audioixp_resume(dev_info_t *dip)
393 {
394 audioixp_state_t *statep;
395
396 statep = ddi_get_driver_private(dip);
397 ASSERT(statep != NULL);
398
399 if (audioixp_chip_init(statep) != DDI_SUCCESS) {
400 audio_dev_warn(statep->adev, "DDI_RESUME failed to init chip");
401 return (DDI_SUCCESS);
402 }
403
404 ac97_reset(statep->ac97);
405 audio_dev_resume(statep->adev);
406
407 return (DDI_SUCCESS);
408 }
409
410 /*
411 * audioixp_open()
412 *
413 * Description:
414 * Opens a DMA engine for use.
415 *
416 * Arguments:
417 * void *arg The DMA engine to set up
418 * int flag Open flags
419 * unsigned *nframesp Receives number of frames
420 * caddr_t *bufp Receives kernel data buffer
421 *
422 * Returns:
423 * 0 on success
424 * errno on failure
425 */
426 static int
audioixp_open(void * arg,int flag,unsigned * nframesp,caddr_t * bufp)427 audioixp_open(void *arg, int flag, unsigned *nframesp, caddr_t *bufp)
428 {
429 audioixp_port_t *port = arg;
430
431 _NOTE(ARGUNUSED(flag));
432
433 port->started = B_FALSE;
434 port->count = 0;
435 port->offset = 0;
436 *nframesp = port->nframes;
437 *bufp = port->samp_kaddr;
438
439 return (0);
440 }
441
442 /*
443 * audioixp_close()
444 *
445 * Description:
446 * Closes an audio DMA engine that was previously opened. Since
447 * nobody is using it, we take this opportunity to possibly power
448 * down the entire device.
449 *
450 * Arguments:
451 * void *arg The DMA engine to shut down
452 */
453 static void
audioixp_close(void * arg)454 audioixp_close(void *arg)
455 {
456 _NOTE(ARGUNUSED(arg));
457 }
458
459 /*
460 * audioixp_stop()
461 *
462 * Description:
463 * This is called by the framework to stop a port that is
464 * transferring data.
465 *
466 * Arguments:
467 * void *arg The DMA engine to stop
468 */
469 static void
audioixp_stop(void * arg)470 audioixp_stop(void *arg)
471 {
472 audioixp_port_t *port = arg;
473 audioixp_state_t *statep = port->statep;
474
475 mutex_enter(&statep->inst_lock);
476 if (port->num == IXP_REC) {
477 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN);
478 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN_DMA);
479 } else {
480 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT);
481 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT_DMA);
482 }
483 mutex_exit(&statep->inst_lock);
484 }
485
486 /*
487 * audioixp_start()
488 *
489 * Description:
490 * This is called by the framework to start a port transferring data.
491 *
492 * Arguments:
493 * void *arg The DMA engine to start
494 *
495 * Returns:
496 * 0 on success (never fails, errno if it did)
497 */
498 static int
audioixp_start(void * arg)499 audioixp_start(void *arg)
500 {
501 audioixp_port_t *port = arg;
502 audioixp_state_t *statep = port->statep;
503
504 mutex_enter(&statep->inst_lock);
505
506 port->offset = 0;
507
508 if (port->num == IXP_REC) {
509 PUT32(IXP_AUDIO_FIFO_FLUSH, IXP_AUDIO_FIFO_FLUSH_IN);
510 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_INTER_IN);
511
512 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN_DMA);
513 PUT32(IXP_AUDIO_IN_DMA_LINK_P,
514 port->bdl_paddr | IXP_AUDIO_IN_DMA_LINK_P_EN);
515
516 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN);
517 } else {
518 uint32_t slot = GET32(IXP_AUDIO_OUT_DMA_SLOT_EN_THRESHOLD);
519 PUT32(IXP_AUDIO_FIFO_FLUSH, IXP_AUDIO_FIFO_FLUSH_OUT);
520 /* clear all slots */
521 slot &= ~ (IXP_AUDIO_OUT_DMA_SLOT_3 |
522 IXP_AUDIO_OUT_DMA_SLOT_4 |
523 IXP_AUDIO_OUT_DMA_SLOT_5 |
524 IXP_AUDIO_OUT_DMA_SLOT_6 |
525 IXP_AUDIO_OUT_DMA_SLOT_7 |
526 IXP_AUDIO_OUT_DMA_SLOT_8 |
527 IXP_AUDIO_OUT_DMA_SLOT_9 |
528 IXP_AUDIO_OUT_DMA_SLOT_10 |
529 IXP_AUDIO_OUT_DMA_SLOT_11 |
530 IXP_AUDIO_OUT_DMA_SLOT_12);
531 /* enable AC'97 output slots (depending on output channels) */
532 slot |= IXP_AUDIO_OUT_DMA_SLOT_3 |
533 IXP_AUDIO_OUT_DMA_SLOT_4;
534 if (port->nchan >= 4) {
535 slot |= IXP_AUDIO_OUT_DMA_SLOT_6 |
536 IXP_AUDIO_OUT_DMA_SLOT_9;
537 }
538 if (port->nchan >= 6) {
539 slot |= IXP_AUDIO_OUT_DMA_SLOT_7 |
540 IXP_AUDIO_OUT_DMA_SLOT_8;
541 }
542
543 PUT32(IXP_AUDIO_OUT_DMA_SLOT_EN_THRESHOLD, slot);
544
545 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_INTER_OUT);
546
547 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT_DMA);
548 PUT32(IXP_AUDIO_OUT_DMA_LINK_P,
549 port->bdl_paddr | IXP_AUDIO_OUT_DMA_LINK_P_EN);
550
551 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT);
552 }
553 mutex_exit(&statep->inst_lock);
554 return (0);
555 }
556
557 /*
558 * audioixp_format()
559 *
560 * Description:
561 * This is called by the framework to query the format for the device.
562 *
563 * Arguments:
564 * void *arg The DMA engine to query
565 *
566 * Returns:
567 * AUDIO_FORMAT_S16_LE
568 */
569 static int
audioixp_format(void * arg)570 audioixp_format(void *arg)
571 {
572 _NOTE(ARGUNUSED(arg));
573
574 return (AUDIO_FORMAT_S16_LE);
575 }
576
577 /*
578 * audioixp_channels()
579 *
580 * Description:
581 * This is called by the framework to query the channels for the device.
582 *
583 * Arguments:
584 * void *arg The DMA engine to query
585 *
586 * Returns:
587 * Number of channels for the device.
588 */
589 static int
audioixp_channels(void * arg)590 audioixp_channels(void *arg)
591 {
592 audioixp_port_t *port = arg;
593
594 return (port->nchan);
595 }
596
597 /*
598 * audioixp_rate()
599 *
600 * Description:
601 * This is called by the framework to query the rate of the device.
602 *
603 * Arguments:
604 * void *arg The DMA engine to query
605 *
606 * Returns:
607 * 48000
608 */
609 static int
audioixp_rate(void * arg)610 audioixp_rate(void *arg)
611 {
612 _NOTE(ARGUNUSED(arg));
613
614 return (48000);
615 }
616
617 /*
618 * audioixp_count()
619 *
620 * Description:
621 * This is called by the framework to get the engine's frame counter
622 *
623 * Arguments:
624 * void *arg The DMA engine to query
625 *
626 * Returns:
627 * frame count for current engine
628 */
629 static uint64_t
audioixp_count(void * arg)630 audioixp_count(void *arg)
631 {
632 audioixp_port_t *port = arg;
633 audioixp_state_t *statep = port->statep;
634 uint64_t val;
635
636 mutex_enter(&statep->inst_lock);
637 audioixp_update_port(port);
638 val = port->count;
639 mutex_exit(&statep->inst_lock);
640
641 return (val);
642 }
643
644 /*
645 * audioixp_sync()
646 *
647 * Description:
648 * This is called by the framework to synchronize DMA caches.
649 *
650 * Arguments:
651 * void *arg The DMA engine to sync
652 */
653 static void
audioixp_sync(void * arg,unsigned nframes)654 audioixp_sync(void *arg, unsigned nframes)
655 {
656 audioixp_port_t *port = arg;
657 _NOTE(ARGUNUSED(nframes));
658
659 (void) ddi_dma_sync(port->samp_dmah, 0, 0, port->sync_dir);
660 }
661
662 /* *********************** Local Routines *************************** */
663
664 /*
665 * audioixp_alloc_port()
666 *
667 * Description:
668 * This routine allocates the DMA handles and the memory for the
669 * DMA engines to use. It also configures the BDL lists properly
670 * for use.
671 *
672 * Arguments:
673 * dev_info_t *dip Pointer to the device's devinfo
674 *
675 * Returns:
676 * DDI_SUCCESS Registers successfully mapped
677 * DDI_FAILURE Registers not successfully mapped
678 */
679 static int
audioixp_alloc_port(audioixp_state_t * statep,int num)680 audioixp_alloc_port(audioixp_state_t *statep, int num)
681 {
682 ddi_dma_cookie_t cookie;
683 uint_t count;
684 int dir;
685 unsigned caps;
686 audio_dev_t *adev;
687 audioixp_port_t *port;
688 uint32_t paddr;
689 int rc;
690 dev_info_t *dip;
691 audioixp_bd_entry_t *bdentry;
692
693 adev = statep->adev;
694 dip = statep->dip;
695
696 port = kmem_zalloc(sizeof (*port), KM_SLEEP);
697 port->statep = statep;
698 port->started = B_FALSE;
699 port->num = num;
700
701 switch (num) {
702 case IXP_REC:
703 statep->rec_port = port;
704 dir = DDI_DMA_READ;
705 caps = ENGINE_INPUT_CAP;
706 port->sync_dir = DDI_DMA_SYNC_FORKERNEL;
707 port->nchan = 2;
708 break;
709 case IXP_PLAY:
710 statep->play_port = port;
711 dir = DDI_DMA_WRITE;
712 caps = ENGINE_OUTPUT_CAP;
713 port->sync_dir = DDI_DMA_SYNC_FORDEV;
714 /*
715 * We allow for end users to configure more channels
716 * than just two, but we default to just two. The
717 * default stereo configuration works well. On the
718 * configurations we have tested, we've found that
719 * more than two channels (or rather 6 channels) can
720 * cause inexplicable noise. The noise is more
721 * noticeable when the system is running under load.
722 * (Holding the space bar in "top" while playing an
723 * MP3 is an easy way to recreate it.) End users who
724 * want to experiment, or have configurations that
725 * don't suffer from this, may increase the channels
726 * by setting this max-channels property. We leave it
727 * undocumented for now.
728 */
729 port->nchan = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 0,
730 "max-channels", 2);
731 port->nchan = min(ac97_num_channels(statep->ac97),
732 port->nchan);
733 port->nchan &= ~1; /* make sure its an even number */
734 port->nchan = max(port->nchan, 2);
735 break;
736 default:
737 audio_dev_warn(adev, "bad port number (%d)!", num);
738 goto free_port;
739 }
740
741 port->nframes = 4096;
742 port->fragfr = port->nframes / IXP_BD_NUMS;
743 port->fragsz = port->fragfr * port->nchan * 2;
744 port->samp_size = port->nframes * port->nchan * 2;
745
746 /* allocate dma handle */
747 rc = ddi_dma_alloc_handle(dip, &sample_buf_dma_attr, DDI_DMA_SLEEP,
748 NULL, &port->samp_dmah);
749 if (rc != DDI_SUCCESS) {
750 audio_dev_warn(adev, "ddi_dma_alloc_handle failed: %d", rc);
751 goto free_port;
752 }
753 /* allocate DMA buffer */
754 rc = ddi_dma_mem_alloc(port->samp_dmah, port->samp_size, &buf_attr,
755 DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &port->samp_kaddr,
756 &port->samp_size, &port->samp_acch);
757 if (rc == DDI_FAILURE) {
758 audio_dev_warn(adev, "dma_mem_alloc failed");
759 goto free_dma_handle;
760 }
761
762 /* bind DMA buffer */
763 rc = ddi_dma_addr_bind_handle(port->samp_dmah, NULL,
764 port->samp_kaddr, port->samp_size, dir|DDI_DMA_CONSISTENT,
765 DDI_DMA_SLEEP, NULL, &cookie, &count);
766 if ((rc != DDI_DMA_MAPPED) || (count != 1)) {
767 audio_dev_warn(adev,
768 "ddi_dma_addr_bind_handle failed: %d", rc);
769 goto free_dma_mem;
770 }
771 port->samp_paddr = cookie.dmac_address;
772
773 /*
774 * now, from here we allocate DMA memory for buffer descriptor list.
775 * we allocate adjacent DMA memory for all DMA engines.
776 */
777 rc = ddi_dma_alloc_handle(dip, &bdlist_dma_attr, DDI_DMA_SLEEP,
778 NULL, &port->bdl_dmah);
779 if (rc != DDI_SUCCESS) {
780 audio_dev_warn(adev, "ddi_dma_alloc_handle(bdlist) failed");
781 goto unbind_dma_handle;
782 }
783
784 /*
785 * we allocate all buffer descriptors lists in continuous dma memory.
786 */
787 port->bdl_size = sizeof (audioixp_bd_entry_t) * IXP_BD_NUMS;
788 rc = ddi_dma_mem_alloc(port->bdl_dmah, port->bdl_size,
789 &dev_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL,
790 &port->bdl_kaddr, &port->bdl_size, &port->bdl_acch);
791 if (rc != DDI_SUCCESS) {
792 audio_dev_warn(adev, "ddi_dma_mem_alloc(bdlist) failed");
793 goto free_dma_handle1;
794 }
795
796 rc = ddi_dma_addr_bind_handle(port->bdl_dmah, NULL, port->bdl_kaddr,
797 port->bdl_size, DDI_DMA_WRITE|DDI_DMA_CONSISTENT, DDI_DMA_SLEEP,
798 NULL, &cookie, &count);
799 if ((rc != DDI_DMA_MAPPED) || (count != 1)) {
800 audio_dev_warn(adev, "addr_bind_handle failed");
801 goto free_dma_mem1;
802 }
803 port->bdl_paddr = cookie.dmac_address;
804
805 /*
806 * Wire up the BD list.
807 */
808 paddr = port->samp_paddr;
809 bdentry = (void *)port->bdl_kaddr;
810
811 for (int i = 0; i < IXP_BD_NUMS; i++) {
812
813 /* set base address of buffer */
814 ddi_put32(port->bdl_acch, &bdentry->buf_base, paddr);
815 ddi_put16(port->bdl_acch, &bdentry->status, 0);
816 ddi_put16(port->bdl_acch, &bdentry->buf_len, port->fragsz / 4);
817 ddi_put32(port->bdl_acch, &bdentry->next, port->bdl_paddr +
818 (((i + 1) % IXP_BD_NUMS) * sizeof (audioixp_bd_entry_t)));
819 paddr += port->fragsz;
820 bdentry++;
821 }
822 (void) ddi_dma_sync(port->bdl_dmah, 0, 0, DDI_DMA_SYNC_FORDEV);
823
824 port->engine = audio_engine_alloc(&audioixp_engine_ops, caps);
825 if (port->engine == NULL) {
826 audio_dev_warn(adev, "audio_engine_alloc failed");
827 goto fail;
828 }
829
830 audio_engine_set_private(port->engine, port);
831 audio_dev_add_engine(adev, port->engine);
832
833 return (DDI_SUCCESS);
834 fail:
835 (void) ddi_dma_unbind_handle(port->bdl_dmah);
836 free_dma_mem1:
837 ddi_dma_mem_free(&port->bdl_acch);
838 free_dma_handle1:
839 ddi_dma_free_handle(&port->bdl_dmah);
840 unbind_dma_handle:
841 (void) ddi_dma_unbind_handle(port->samp_dmah);
842 free_dma_mem:
843 ddi_dma_mem_free(&port->samp_acch);
844 free_dma_handle:
845 ddi_dma_free_handle(&port->samp_dmah);
846 free_port:
847 kmem_free(port, sizeof (*port));
848 return (DDI_FAILURE);
849 }
850
851 /*
852 * audioixp_free_port()
853 *
854 * Description:
855 * This routine unbinds the DMA cookies, frees the DMA buffers,
856 * deallocates the DMA handles.
857 *
858 * Arguments:
859 * audioixp_port_t *port The port structure for a DMA engine.
860 */
861 static void
audioixp_free_port(audioixp_port_t * port)862 audioixp_free_port(audioixp_port_t *port)
863 {
864 if (port == NULL)
865 return;
866
867 if (port->engine) {
868 audio_dev_remove_engine(port->statep->adev, port->engine);
869 audio_engine_free(port->engine);
870 }
871 if (port->bdl_paddr) {
872 (void) ddi_dma_unbind_handle(port->bdl_dmah);
873 }
874 if (port->bdl_acch) {
875 ddi_dma_mem_free(&port->bdl_acch);
876 }
877 if (port->bdl_dmah) {
878 ddi_dma_free_handle(&port->bdl_dmah);
879 }
880 if (port->samp_paddr) {
881 (void) ddi_dma_unbind_handle(port->samp_dmah);
882 }
883 if (port->samp_acch) {
884 ddi_dma_mem_free(&port->samp_acch);
885 }
886 if (port->samp_dmah) {
887 ddi_dma_free_handle(&port->samp_dmah);
888 }
889 kmem_free(port, sizeof (*port));
890 }
891
892 /*
893 * audioixp_update_port()
894 *
895 * Description:
896 * This routine updates the ports frame counter from hardware, and
897 * gracefully handles wraps.
898 *
899 * Arguments:
900 * audioixp_port_t *port The port to update.
901 */
902 static void
audioixp_update_port(audioixp_port_t * port)903 audioixp_update_port(audioixp_port_t *port)
904 {
905 audioixp_state_t *statep = port->statep;
906 unsigned regoff;
907 unsigned n;
908 int loop;
909 uint32_t offset;
910 uint32_t paddr;
911
912 if (port->num == IXP_REC) {
913 regoff = IXP_AUDIO_IN_DMA_DT_CUR;
914 } else {
915 regoff = IXP_AUDIO_OUT_DMA_DT_CUR;
916 }
917
918 /*
919 * Apparently it may take several tries to get an update on the
920 * position. Is this a hardware bug?
921 */
922 for (loop = 100; loop; loop--) {
923 paddr = GET32(regoff);
924
925 /* make sure address is reasonable */
926 if ((paddr < port->samp_paddr) ||
927 (paddr >= (port->samp_paddr + port->samp_size))) {
928 continue;
929 }
930
931 offset = paddr - port->samp_paddr;
932
933 if (offset >= port->offset) {
934 n = offset - port->offset;
935 } else {
936 n = offset + (port->samp_size - port->offset);
937 }
938 port->offset = offset;
939 port->count += (n / (port->nchan * sizeof (uint16_t)));
940 return;
941 }
942
943 audio_dev_warn(statep->adev, "Unable to update count (h/w bug?)");
944 }
945
946
947 /*
948 * audioixp_map_regs()
949 *
950 * Description:
951 * The registers are mapped in.
952 *
953 * Arguments:
954 * audioixp_state_t *state The device's state structure
955 *
956 * Returns:
957 * DDI_SUCCESS Registers successfully mapped
958 * DDI_FAILURE Registers not successfully mapped
959 */
960 static int
audioixp_map_regs(audioixp_state_t * statep)961 audioixp_map_regs(audioixp_state_t *statep)
962 {
963 dev_info_t *dip = statep->dip;
964
965 /* map PCI config space */
966 if (pci_config_setup(statep->dip, &statep->pcih) == DDI_FAILURE) {
967 audio_dev_warn(statep->adev, "unable to map PCI config space");
968 return (DDI_FAILURE);
969 }
970
971 /* map audio mixer register */
972 if ((ddi_regs_map_setup(dip, IXP_IO_AM_REGS, &statep->regsp, 0, 0,
973 &dev_attr, &statep->regsh)) != DDI_SUCCESS) {
974 audio_dev_warn(statep->adev, "unable to map audio registers");
975 return (DDI_FAILURE);
976 }
977 return (DDI_SUCCESS);
978 }
979
980 /*
981 * audioixp_unmap_regs()
982 *
983 * Description:
984 * This routine unmaps control registers.
985 *
986 * Arguments:
987 * audioixp_state_t *state The device's state structure
988 */
989 static void
audioixp_unmap_regs(audioixp_state_t * statep)990 audioixp_unmap_regs(audioixp_state_t *statep)
991 {
992 if (statep->regsh) {
993 ddi_regs_map_free(&statep->regsh);
994 }
995
996 if (statep->pcih) {
997 pci_config_teardown(&statep->pcih);
998 }
999 }
1000
1001 /*
1002 * audioixp_codec_ready()
1003 *
1004 * Description:
1005 * This routine checks the state of codecs. It checks the flag to confirm
1006 * that primary codec is ready.
1007 *
1008 * Arguments:
1009 * audioixp_state_t *state The device's state structure
1010 *
1011 * Returns:
1012 * DDI_SUCCESS codec is ready
1013 * DDI_FAILURE codec is not ready
1014 */
1015 static int
audioixp_codec_ready(audioixp_state_t * statep)1016 audioixp_codec_ready(audioixp_state_t *statep)
1017 {
1018 uint32_t sr;
1019
1020 PUT32(IXP_AUDIO_INT, 0xffffffff);
1021 drv_usecwait(1000);
1022
1023 sr = GET32(IXP_AUDIO_INT);
1024 if (sr & IXP_AUDIO_INT_CODEC0_NOT_READY) {
1025 PUT32(IXP_AUDIO_INT, IXP_AUDIO_INT_CODEC0_NOT_READY);
1026 audio_dev_warn(statep->adev, "primary codec not ready");
1027
1028 return (DDI_FAILURE);
1029 }
1030 return (DDI_SUCCESS);
1031 }
1032
1033 /*
1034 * audioixp_codec_sync()
1035 *
1036 * Description:
1037 * Serialize access to the AC97 audio mixer registers.
1038 *
1039 * Arguments:
1040 * audioixp_state_t *state The device's state structure
1041 *
1042 * Returns:
1043 * DDI_SUCCESS Ready for an I/O access to the codec
1044 * DDI_FAILURE An I/O access is currently in progress, can't
1045 * perform another I/O access.
1046 */
1047 static int
audioixp_codec_sync(audioixp_state_t * statep)1048 audioixp_codec_sync(audioixp_state_t *statep)
1049 {
1050 int i;
1051 uint32_t cmd;
1052
1053 for (i = 0; i < 300; i++) {
1054 cmd = GET32(IXP_AUDIO_OUT_PHY_ADDR_DATA);
1055 if (!(cmd & IXP_AUDIO_OUT_PHY_EN)) {
1056 return (DDI_SUCCESS);
1057 }
1058 drv_usecwait(10);
1059 }
1060
1061 audio_dev_warn(statep->adev, "unable to synchronize codec");
1062 return (DDI_FAILURE);
1063 }
1064
1065 /*
1066 * audioixp_rd97()
1067 *
1068 * Description:
1069 * Get the specific AC97 Codec register.
1070 *
1071 * Arguments:
1072 * void *arg The device's state structure
1073 * uint8_t reg AC97 register number
1074 *
1075 * Returns:
1076 * Register value.
1077 */
1078 static uint16_t
audioixp_rd97(void * arg,uint8_t reg)1079 audioixp_rd97(void *arg, uint8_t reg)
1080 {
1081 audioixp_state_t *statep = arg;
1082 uint32_t value;
1083 uint32_t result;
1084
1085 if (audioixp_codec_sync(statep) != DDI_SUCCESS)
1086 return (0xffff);
1087
1088 value = IXP_AUDIO_OUT_PHY_PRIMARY_CODEC |
1089 IXP_AUDIO_OUT_PHY_READ |
1090 IXP_AUDIO_OUT_PHY_EN |
1091 ((unsigned)reg << IXP_AUDIO_OUT_PHY_ADDR_SHIFT);
1092 PUT32(IXP_AUDIO_OUT_PHY_ADDR_DATA, value);
1093
1094 if (audioixp_codec_sync(statep) != DDI_SUCCESS)
1095 return (0xffff);
1096
1097 for (int i = 0; i < 300; i++) {
1098 result = GET32(IXP_AUDIO_IN_PHY_ADDR_DATA);
1099 if (result & IXP_AUDIO_IN_PHY_READY) {
1100 return (result >> IXP_AUDIO_IN_PHY_DATA_SHIFT);
1101 }
1102 drv_usecwait(10);
1103 }
1104
1105 audio_dev_warn(statep->adev, "time out reading codec reg %d", reg);
1106 return (0xffff);
1107 }
1108
1109 /*
1110 * audioixp_wr97()
1111 *
1112 * Description:
1113 * Set the specific AC97 Codec register.
1114 *
1115 * Arguments:
1116 * void *arg The device's state structure
1117 * uint8_t reg AC97 register number
1118 * uint16_t data The data want to be set
1119 */
1120 static void
audioixp_wr97(void * arg,uint8_t reg,uint16_t data)1121 audioixp_wr97(void *arg, uint8_t reg, uint16_t data)
1122 {
1123 audioixp_state_t *statep = arg;
1124 uint32_t value;
1125
1126 if (audioixp_codec_sync(statep) != DDI_SUCCESS) {
1127 return;
1128 }
1129
1130 value = IXP_AUDIO_OUT_PHY_PRIMARY_CODEC |
1131 IXP_AUDIO_OUT_PHY_WRITE |
1132 IXP_AUDIO_OUT_PHY_EN |
1133 ((unsigned)reg << IXP_AUDIO_OUT_PHY_ADDR_SHIFT) |
1134 ((unsigned)data << IXP_AUDIO_OUT_PHY_DATA_SHIFT);
1135 PUT32(IXP_AUDIO_OUT_PHY_ADDR_DATA, value);
1136
1137 (void) audioixp_rd97(statep, reg);
1138 }
1139
1140 /*
1141 * audioixp_reset_ac97()
1142 *
1143 * Description:
1144 * Reset AC97 Codec register.
1145 *
1146 * Arguments:
1147 * audioixp_state_t *state The device's state structure
1148 *
1149 * Returns:
1150 * DDI_SUCCESS Reset the codec successfully
1151 * DDI_FAILURE Failed to reset the codec
1152 */
1153 static int
audioixp_reset_ac97(audioixp_state_t * statep)1154 audioixp_reset_ac97(audioixp_state_t *statep)
1155 {
1156 uint32_t cmd;
1157 int i;
1158
1159 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_POWER_DOWN);
1160 drv_usecwait(10);
1161
1162 /* register reset */
1163 SET32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_AC_SOFT_RESET);
1164 /* force a read to flush caches */
1165 (void) GET32(IXP_AUDIO_CMD);
1166
1167 drv_usecwait(10);
1168 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_AC_SOFT_RESET);
1169
1170 /* cold reset */
1171 for (i = 0; i < 300; i++) {
1172 cmd = GET32(IXP_AUDIO_CMD);
1173 if (cmd & IXP_AUDIO_CMD_AC_ACTIVE) {
1174 cmd |= IXP_AUDIO_CMD_AC_RESET | IXP_AUDIO_CMD_AC_SYNC;
1175 PUT32(IXP_AUDIO_CMD, cmd);
1176 return (DDI_SUCCESS);
1177 }
1178 cmd &= ~IXP_AUDIO_CMD_AC_RESET;
1179 cmd |= IXP_AUDIO_CMD_AC_SYNC;
1180 PUT32(IXP_AUDIO_CMD, cmd);
1181 (void) GET32(IXP_AUDIO_CMD);
1182 drv_usecwait(10);
1183 cmd |= IXP_AUDIO_CMD_AC_RESET;
1184 PUT32(IXP_AUDIO_CMD, cmd);
1185 drv_usecwait(10);
1186 }
1187
1188 audio_dev_warn(statep->adev, "AC'97 reset timed out");
1189 return (DDI_FAILURE);
1190 }
1191
1192 /*
1193 * audioixp_chip_init()
1194 *
1195 * Description:
1196 * This routine initializes ATI IXP audio controller and the AC97
1197 * codec.
1198 *
1199 * Arguments:
1200 * audioixp_state_t *state The device's state structure
1201 *
1202 * Returns:
1203 * DDI_SUCCESS The hardware was initialized properly
1204 * DDI_FAILURE The hardware couldn't be initialized properly
1205 */
1206 static int
audioixp_chip_init(audioixp_state_t * statep)1207 audioixp_chip_init(audioixp_state_t *statep)
1208 {
1209 /*
1210 * put the audio controller into quiet state, everything off
1211 */
1212 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT_DMA);
1213 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN_DMA);
1214
1215 /* AC97 reset */
1216 if (audioixp_reset_ac97(statep) != DDI_SUCCESS) {
1217 audio_dev_warn(statep->adev, "AC97 codec reset failed");
1218 return (DDI_FAILURE);
1219 }
1220
1221 if (audioixp_codec_ready(statep) != DDI_SUCCESS) {
1222 audio_dev_warn(statep->adev, "AC97 codec not ready");
1223 return (DDI_FAILURE);
1224 }
1225
1226 return (DDI_SUCCESS);
1227
1228 } /* audioixp_chip_init() */
1229
1230 /*
1231 * audioixp_attach()
1232 *
1233 * Description:
1234 * Attach an instance of the audioixp driver. This routine does
1235 * the device dependent attach tasks.
1236 *
1237 * Arguments:
1238 * dev_info_t *dip Pointer to the device's dev_info struct
1239 * ddi_attach_cmd_t cmd Attach command
1240 *
1241 * Returns:
1242 * DDI_SUCCESS The driver was initialized properly
1243 * DDI_FAILURE The driver couldn't be initialized properly
1244 */
1245 static int
audioixp_attach(dev_info_t * dip)1246 audioixp_attach(dev_info_t *dip)
1247 {
1248 uint16_t cmdeg;
1249 audioixp_state_t *statep;
1250 audio_dev_t *adev;
1251 uint32_t devid;
1252 const char *name;
1253 const char *rev;
1254
1255 /* allocate the soft state structure */
1256 statep = kmem_zalloc(sizeof (*statep), KM_SLEEP);
1257 statep->dip = dip;
1258 ddi_set_driver_private(dip, statep);
1259 mutex_init(&statep->inst_lock, NULL, MUTEX_DRIVER, NULL);
1260
1261 /* allocate framework audio device */
1262 if ((adev = audio_dev_alloc(dip, 0)) == NULL) {
1263 cmn_err(CE_WARN, "!%s%d: unable to allocate audio dev",
1264 ddi_driver_name(dip), ddi_get_instance(dip));
1265 goto error;
1266 }
1267 statep->adev = adev;
1268
1269 /* map in the registers */
1270 if (audioixp_map_regs(statep) != DDI_SUCCESS) {
1271 audio_dev_warn(adev, "couldn't map registers");
1272 goto error;
1273 }
1274
1275 /* set device information -- this could be smarter */
1276 devid = ((pci_config_get16(statep->pcih, PCI_CONF_VENID)) << 16) |
1277 pci_config_get16(statep->pcih, PCI_CONF_DEVID);
1278
1279 name = "ATI AC'97";
1280 switch (devid) {
1281 case IXP_PCI_ID_200:
1282 rev = "IXP150";
1283 break;
1284 case IXP_PCI_ID_300:
1285 rev = "SB300";
1286 break;
1287 case IXP_PCI_ID_400:
1288 if (pci_config_get8(statep->pcih, PCI_CONF_REVID) & 0x80) {
1289 rev = "SB450";
1290 } else {
1291 rev = "SB400";
1292 }
1293 break;
1294 case IXP_PCI_ID_SB600:
1295 rev = "SB600";
1296 break;
1297 default:
1298 rev = "Unknown";
1299 break;
1300 }
1301 audio_dev_set_description(adev, name);
1302 audio_dev_set_version(adev, rev);
1303
1304 /* set PCI command register */
1305 cmdeg = pci_config_get16(statep->pcih, PCI_CONF_COMM);
1306 pci_config_put16(statep->pcih, PCI_CONF_COMM,
1307 cmdeg | PCI_COMM_IO | PCI_COMM_MAE);
1308
1309 statep->ac97 = ac97_alloc(dip, audioixp_rd97, audioixp_wr97, statep);
1310 if (statep->ac97 == NULL) {
1311 audio_dev_warn(adev, "failed to allocate ac97 handle");
1312 goto error;
1313 }
1314
1315 /* allocate port structures */
1316 if ((audioixp_alloc_port(statep, IXP_PLAY) != DDI_SUCCESS) ||
1317 (audioixp_alloc_port(statep, IXP_REC) != DDI_SUCCESS)) {
1318 goto error;
1319 }
1320
1321 /*
1322 * If we have locked in a stereo configuration, then don't expose
1323 * multichannel-specific AC'97 codec controls.
1324 */
1325 if (statep->play_port->nchan == 2) {
1326 int i;
1327 ac97_ctrl_t *ctrl;
1328 const char *name;
1329
1330 for (i = 0; (name = audioixp_remove_ac97[i]) != NULL; i++) {
1331 ctrl = ac97_control_find(statep->ac97, name);
1332 if (ctrl != NULL) {
1333 ac97_control_unregister(ctrl);
1334 }
1335 }
1336 }
1337
1338 if (audioixp_chip_init(statep) != DDI_SUCCESS) {
1339 audio_dev_warn(statep->adev, "failed to init chip");
1340 goto error;
1341 }
1342
1343 /* initialize the AC'97 part */
1344 if (ac97_init(statep->ac97, adev) != DDI_SUCCESS) {
1345 audio_dev_warn(adev, "ac'97 initialization failed");
1346 goto error;
1347 }
1348
1349 if (audio_dev_register(adev) != DDI_SUCCESS) {
1350 audio_dev_warn(adev, "unable to register with framework");
1351 goto error;
1352 }
1353
1354 ddi_report_dev(dip);
1355
1356 return (DDI_SUCCESS);
1357
1358 error:
1359 audioixp_destroy(statep);
1360 return (DDI_FAILURE);
1361 }
1362
1363 /*
1364 * audioixp_detach()
1365 *
1366 * Description:
1367 * Detach an instance of the audioixp driver.
1368 *
1369 * Arguments:
1370 * dev_info_t *dip Pointer to the device's dev_info struct
1371 *
1372 * Returns:
1373 * DDI_SUCCESS The driver was detached
1374 * DDI_FAILURE The driver couldn't be detached
1375 */
1376 static int
audioixp_detach(dev_info_t * dip)1377 audioixp_detach(dev_info_t *dip)
1378 {
1379 audioixp_state_t *statep;
1380
1381 statep = ddi_get_driver_private(dip);
1382
1383 if (audio_dev_unregister(statep->adev) != DDI_SUCCESS) {
1384 return (DDI_FAILURE);
1385 }
1386
1387 audioixp_destroy(statep);
1388 return (DDI_SUCCESS);
1389 }
1390
1391 /*
1392 * audioixp_destroy()
1393 *
1394 * Description:
1395 * This routine releases all resources held by the device instance,
1396 * as part of either detach or a failure in attach.
1397 *
1398 * Arguments:
1399 * audioixp_state_t *state The device soft state.
1400 */
1401 static void
audioixp_destroy(audioixp_state_t * statep)1402 audioixp_destroy(audioixp_state_t *statep)
1403 {
1404 /*
1405 * put the audio controller into quiet state, everything off
1406 */
1407 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_OUT_DMA);
1408 CLR32(IXP_AUDIO_CMD, IXP_AUDIO_CMD_EN_IN_DMA);
1409
1410 audioixp_free_port(statep->play_port);
1411 audioixp_free_port(statep->rec_port);
1412
1413 audioixp_unmap_regs(statep);
1414
1415 if (statep->ac97) {
1416 ac97_free(statep->ac97);
1417 }
1418
1419 if (statep->adev) {
1420 audio_dev_free(statep->adev);
1421 }
1422
1423 mutex_destroy(&statep->inst_lock);
1424 kmem_free(statep, sizeof (*statep));
1425 }
1426