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27#include <linux/io.h>
28#include <linux/delay.h>
29#include <linux/interrupt.h>
30#include <linux/init.h>
31#include <linux/pci.h>
32#include <linux/slab.h>
33#include <linux/module.h>
34#include <linux/mutex.h>
35
36#include <sound/core.h>
37#include <sound/info.h>
38#include <sound/control.h>
39#include <sound/pcm.h>
40#include <sound/ac97_codec.h>
41#include <sound/initval.h>
42
43#define CARD_NAME "NeoMagic 256AV/ZX"
44#define DRIVER_NAME "NM256"
45
46MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
47MODULE_DESCRIPTION("NeoMagic NM256AV/ZX");
48MODULE_LICENSE("GPL");
49MODULE_SUPPORTED_DEVICE("{{NeoMagic,NM256AV},"
50 "{NeoMagic,NM256ZX}}");
51
52
53
54
55
56static int index = SNDRV_DEFAULT_IDX1;
57static char *id = SNDRV_DEFAULT_STR1;
58static int playback_bufsize = 16;
59static int capture_bufsize = 16;
60static bool force_ac97;
61static int buffer_top;
62static bool use_cache;
63static bool vaio_hack;
64static bool reset_workaround;
65static bool reset_workaround_2;
66
67module_param(index, int, 0444);
68MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
69module_param(id, charp, 0444);
70MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
71module_param(playback_bufsize, int, 0444);
72MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard.");
73module_param(capture_bufsize, int, 0444);
74MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard.");
75module_param(force_ac97, bool, 0444);
76MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard.");
77module_param(buffer_top, int, 0444);
78MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard.");
79module_param(use_cache, bool, 0444);
80MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access.");
81module_param(vaio_hack, bool, 0444);
82MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks.");
83module_param(reset_workaround, bool, 0444);
84MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops.");
85module_param(reset_workaround_2, bool, 0444);
86MODULE_PARM_DESC(reset_workaround_2, "Enable extended AC97 RESET workaround for some other laptops.");
87
88
89static bool enable;
90module_param(enable, bool, 0444);
91
92
93
94
95
96
97
98
99#define NM_SIGNATURE 0x4e4d0000
100
101#define NM_SIG_MASK 0xffff0000
102
103
104#define NM_PORT2_SIZE 4096
105
106
107#define NM_MIXER_OFFSET 0x600
108
109
110#define NM_MAX_PLAYBACK_COEF_SIZE 0x5000
111#define NM_MAX_RECORD_COEF_SIZE 0x1260
112
113
114#define NM_INT_REG 0xa04
115
116#define NM_PLAYBACK_INT 0x40
117#define NM_RECORD_INT 0x100
118#define NM_MISC_INT_1 0x4000
119#define NM_MISC_INT_2 0x1
120#define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1)
121
122
123#define NM_MIXER_STATUS_OFFSET 0xa04
124#define NM_MIXER_READY_MASK 0x0800
125#define NM_MIXER_PRESENCE 0xa06
126#define NM_PRESENCE_MASK 0x0050
127#define NM_PRESENCE_VALUE 0x0040
128
129
130
131
132
133#define NM2_PLAYBACK_INT 0x10000
134#define NM2_RECORD_INT 0x80000
135#define NM2_MISC_INT_1 0x8
136#define NM2_MISC_INT_2 0x2
137#define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X))
138
139
140#define NM2_MIXER_STATUS_OFFSET 0xa06
141#define NM2_MIXER_READY_MASK 0x0800
142
143
144#define NM_PLAYBACK_REG_OFFSET 0x0
145
146#define NM_RECORD_REG_OFFSET 0x200
147
148
149#define NM_RATE_REG_OFFSET 2
150
151
152#define NM_RATE_STEREO 1
153#define NM_RATE_BITS_16 2
154#define NM_RATE_MASK 0xf0
155
156
157#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
158#define NM_PLAYBACK_ENABLE_FLAG 1
159#define NM_PLAYBACK_ONESHOT 2
160#define NM_PLAYBACK_FREERUN 4
161
162
163#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
164#define NM_AUDIO_MUTE_LEFT 0x8000
165#define NM_AUDIO_MUTE_RIGHT 0x0080
166
167
168#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
169#define NM_RECORD_ENABLE_FLAG 1
170#define NM_RECORD_FREERUN 2
171
172
173#define NM_COEFF_START_OFFSET 0x1c
174#define NM_COEFF_END_OFFSET 0x20
175
176
177#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
178#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10)
179#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
180#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
181
182#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
183#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14)
184#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
185#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
186
187struct nm256_stream {
188
189 struct nm256 *chip;
190 struct snd_pcm_substream *substream;
191 int running;
192 int suspended;
193
194 u32 buf;
195 int bufsize;
196 void __iomem *bufptr;
197 unsigned long bufptr_addr;
198
199 int dma_size;
200 int period_size;
201 int periods;
202 int shift;
203 int cur_period;
204
205};
206
207struct nm256 {
208
209 struct snd_card *card;
210
211 void __iomem *cport;
212 struct resource *res_cport;
213 unsigned long cport_addr;
214
215 void __iomem *buffer;
216 struct resource *res_buffer;
217 unsigned long buffer_addr;
218
219 u32 buffer_start;
220 u32 buffer_end;
221 u32 buffer_size;
222
223 u32 all_coeff_buf;
224 u32 coeff_buf[2];
225
226 unsigned int coeffs_current: 1;
227 unsigned int use_cache: 1;
228 unsigned int reset_workaround: 1;
229 unsigned int reset_workaround_2: 1;
230 unsigned int in_resume: 1;
231
232 int mixer_base;
233 int mixer_status_offset;
234 int mixer_status_mask;
235
236 int irq;
237 int irq_acks;
238 irq_handler_t interrupt;
239 int badintrcount;
240 struct mutex irq_mutex;
241
242 struct nm256_stream streams[2];
243
244 struct snd_ac97 *ac97;
245 unsigned short *ac97_regs;
246
247 struct snd_pcm *pcm;
248
249 struct pci_dev *pci;
250
251 spinlock_t reg_lock;
252
253};
254
255
256
257
258
259#include "nm256_coef.c"
260
261
262
263
264
265static const struct pci_device_id snd_nm256_ids[] = {
266 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0},
267 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0},
268 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0},
269 {0,},
270};
271
272MODULE_DEVICE_TABLE(pci, snd_nm256_ids);
273
274
275
276
277
278
279static inline u8
280snd_nm256_readb(struct nm256 *chip, int offset)
281{
282 return readb(chip->cport + offset);
283}
284
285static inline u16
286snd_nm256_readw(struct nm256 *chip, int offset)
287{
288 return readw(chip->cport + offset);
289}
290
291static inline u32
292snd_nm256_readl(struct nm256 *chip, int offset)
293{
294 return readl(chip->cport + offset);
295}
296
297static inline void
298snd_nm256_writeb(struct nm256 *chip, int offset, u8 val)
299{
300 writeb(val, chip->cport + offset);
301}
302
303static inline void
304snd_nm256_writew(struct nm256 *chip, int offset, u16 val)
305{
306 writew(val, chip->cport + offset);
307}
308
309static inline void
310snd_nm256_writel(struct nm256 *chip, int offset, u32 val)
311{
312 writel(val, chip->cport + offset);
313}
314
315static inline void
316snd_nm256_write_buffer(struct nm256 *chip, void *src, int offset, int size)
317{
318 offset -= chip->buffer_start;
319#ifdef CONFIG_SND_DEBUG
320 if (offset < 0 || offset >= chip->buffer_size) {
321 dev_err(chip->card->dev,
322 "write_buffer invalid offset = %d size = %d\n",
323 offset, size);
324 return;
325 }
326#endif
327 memcpy_toio(chip->buffer + offset, src, size);
328}
329
330
331
332
333
334static u16
335snd_nm256_get_start_offset(int which)
336{
337 u16 offset = 0;
338 while (which-- > 0)
339 offset += coefficient_sizes[which];
340 return offset;
341}
342
343static void
344snd_nm256_load_one_coefficient(struct nm256 *chip, int stream, u32 port, int which)
345{
346 u32 coeff_buf = chip->coeff_buf[stream];
347 u16 offset = snd_nm256_get_start_offset(which);
348 u16 size = coefficient_sizes[which];
349
350 snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size);
351 snd_nm256_writel(chip, port, coeff_buf);
352
353 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
354 size--;
355 snd_nm256_writel(chip, port + 4, coeff_buf + size);
356}
357
358static void
359snd_nm256_load_coefficient(struct nm256 *chip, int stream, int number)
360{
361
362 u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ?
363 NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG);
364 u32 addr = NM_COEFF_START_OFFSET;
365
366 addr += (stream == SNDRV_PCM_STREAM_CAPTURE ?
367 NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET);
368
369 if (snd_nm256_readb(chip, poffset) & 1) {
370 dev_dbg(chip->card->dev,
371 "NM256: Engine was enabled while loading coefficients!\n");
372 return;
373 }
374
375
376 number &= 7;
377 if (stream == SNDRV_PCM_STREAM_CAPTURE)
378 number += 8;
379
380 if (! chip->use_cache) {
381 snd_nm256_load_one_coefficient(chip, stream, addr, number);
382 return;
383 }
384 if (! chip->coeffs_current) {
385 snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf,
386 NM_TOTAL_COEFF_COUNT * 4);
387 chip->coeffs_current = 1;
388 } else {
389 u32 base = chip->all_coeff_buf;
390 u32 offset = snd_nm256_get_start_offset(number);
391 u32 end_offset = offset + coefficient_sizes[number];
392 snd_nm256_writel(chip, addr, base + offset);
393 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
394 end_offset--;
395 snd_nm256_writel(chip, addr + 4, base + end_offset);
396 }
397}
398
399
400
401static unsigned int samplerates[8] = {
402 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000,
403};
404static struct snd_pcm_hw_constraint_list constraints_rates = {
405 .count = ARRAY_SIZE(samplerates),
406 .list = samplerates,
407 .mask = 0,
408};
409
410
411
412
413static int
414snd_nm256_fixed_rate(unsigned int rate)
415{
416 unsigned int i;
417 for (i = 0; i < ARRAY_SIZE(samplerates); i++) {
418 if (rate == samplerates[i])
419 return i;
420 }
421 snd_BUG();
422 return 0;
423}
424
425
426
427
428static void
429snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s,
430 struct snd_pcm_substream *substream)
431{
432 struct snd_pcm_runtime *runtime = substream->runtime;
433 int rate_index = snd_nm256_fixed_rate(runtime->rate);
434 unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK;
435
436 s->shift = 0;
437 if (snd_pcm_format_width(runtime->format) == 16) {
438 ratebits |= NM_RATE_BITS_16;
439 s->shift++;
440 }
441 if (runtime->channels > 1) {
442 ratebits |= NM_RATE_STEREO;
443 s->shift++;
444 }
445
446 runtime->rate = samplerates[rate_index];
447
448 switch (substream->stream) {
449 case SNDRV_PCM_STREAM_PLAYBACK:
450 snd_nm256_load_coefficient(chip, 0, rate_index);
451 snd_nm256_writeb(chip,
452 NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
453 ratebits);
454 break;
455 case SNDRV_PCM_STREAM_CAPTURE:
456 snd_nm256_load_coefficient(chip, 1, rate_index);
457 snd_nm256_writeb(chip,
458 NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
459 ratebits);
460 break;
461 }
462}
463
464
465static int snd_nm256_acquire_irq(struct nm256 *chip)
466{
467 mutex_lock(&chip->irq_mutex);
468 if (chip->irq < 0) {
469 if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED,
470 KBUILD_MODNAME, chip)) {
471 dev_err(chip->card->dev,
472 "unable to grab IRQ %d\n", chip->pci->irq);
473 mutex_unlock(&chip->irq_mutex);
474 return -EBUSY;
475 }
476 chip->irq = chip->pci->irq;
477 }
478 chip->irq_acks++;
479 mutex_unlock(&chip->irq_mutex);
480 return 0;
481}
482
483
484static void snd_nm256_release_irq(struct nm256 *chip)
485{
486 mutex_lock(&chip->irq_mutex);
487 if (chip->irq_acks > 0)
488 chip->irq_acks--;
489 if (chip->irq_acks == 0 && chip->irq >= 0) {
490 free_irq(chip->irq, chip);
491 chip->irq = -1;
492 }
493 mutex_unlock(&chip->irq_mutex);
494}
495
496
497
498
499
500
501static void snd_nm256_pcm_mark(struct nm256 *chip, struct nm256_stream *s, int reg)
502{
503 s->cur_period++;
504 s->cur_period %= s->periods;
505 snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size);
506}
507
508#define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK)
509#define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK)
510
511static void
512snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s,
513 struct snd_pcm_substream *substream)
514{
515
516 snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
517 snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
518 snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
519 snd_nm256_playback_mark(chip, s);
520
521
522 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
523 NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
524
525 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
526}
527
528static void
529snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s,
530 struct snd_pcm_substream *substream)
531{
532
533 snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
534 snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
535 snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
536 snd_nm256_capture_mark(chip, s);
537
538
539 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
540 NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
541}
542
543
544static void
545snd_nm256_playback_stop(struct nm256 *chip)
546{
547
548 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
549 NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
550
551 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
552}
553
554static void
555snd_nm256_capture_stop(struct nm256 *chip)
556{
557
558 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
559}
560
561static int
562snd_nm256_playback_trigger(struct snd_pcm_substream *substream, int cmd)
563{
564 struct nm256 *chip = snd_pcm_substream_chip(substream);
565 struct nm256_stream *s = substream->runtime->private_data;
566 int err = 0;
567
568 if (snd_BUG_ON(!s))
569 return -ENXIO;
570
571 spin_lock(&chip->reg_lock);
572 switch (cmd) {
573 case SNDRV_PCM_TRIGGER_RESUME:
574 s->suspended = 0;
575
576 case SNDRV_PCM_TRIGGER_START:
577 if (! s->running) {
578 snd_nm256_playback_start(chip, s, substream);
579 s->running = 1;
580 }
581 break;
582 case SNDRV_PCM_TRIGGER_SUSPEND:
583 s->suspended = 1;
584
585 case SNDRV_PCM_TRIGGER_STOP:
586 if (s->running) {
587 snd_nm256_playback_stop(chip);
588 s->running = 0;
589 }
590 break;
591 default:
592 err = -EINVAL;
593 break;
594 }
595 spin_unlock(&chip->reg_lock);
596 return err;
597}
598
599static int
600snd_nm256_capture_trigger(struct snd_pcm_substream *substream, int cmd)
601{
602 struct nm256 *chip = snd_pcm_substream_chip(substream);
603 struct nm256_stream *s = substream->runtime->private_data;
604 int err = 0;
605
606 if (snd_BUG_ON(!s))
607 return -ENXIO;
608
609 spin_lock(&chip->reg_lock);
610 switch (cmd) {
611 case SNDRV_PCM_TRIGGER_START:
612 case SNDRV_PCM_TRIGGER_RESUME:
613 if (! s->running) {
614 snd_nm256_capture_start(chip, s, substream);
615 s->running = 1;
616 }
617 break;
618 case SNDRV_PCM_TRIGGER_STOP:
619 case SNDRV_PCM_TRIGGER_SUSPEND:
620 if (s->running) {
621 snd_nm256_capture_stop(chip);
622 s->running = 0;
623 }
624 break;
625 default:
626 err = -EINVAL;
627 break;
628 }
629 spin_unlock(&chip->reg_lock);
630 return err;
631}
632
633
634
635
636
637static int snd_nm256_pcm_prepare(struct snd_pcm_substream *substream)
638{
639 struct nm256 *chip = snd_pcm_substream_chip(substream);
640 struct snd_pcm_runtime *runtime = substream->runtime;
641 struct nm256_stream *s = runtime->private_data;
642
643 if (snd_BUG_ON(!s))
644 return -ENXIO;
645 s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
646 s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
647 s->periods = substream->runtime->periods;
648 s->cur_period = 0;
649
650 spin_lock_irq(&chip->reg_lock);
651 s->running = 0;
652 snd_nm256_set_format(chip, s, substream);
653 spin_unlock_irq(&chip->reg_lock);
654
655 return 0;
656}
657
658
659
660
661
662static snd_pcm_uframes_t
663snd_nm256_playback_pointer(struct snd_pcm_substream *substream)
664{
665 struct nm256 *chip = snd_pcm_substream_chip(substream);
666 struct nm256_stream *s = substream->runtime->private_data;
667 unsigned long curp;
668
669 if (snd_BUG_ON(!s))
670 return 0;
671 curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
672 curp %= s->dma_size;
673 return bytes_to_frames(substream->runtime, curp);
674}
675
676static snd_pcm_uframes_t
677snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
678{
679 struct nm256 *chip = snd_pcm_substream_chip(substream);
680 struct nm256_stream *s = substream->runtime->private_data;
681 unsigned long curp;
682
683 if (snd_BUG_ON(!s))
684 return 0;
685 curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
686 curp %= s->dma_size;
687 return bytes_to_frames(substream->runtime, curp);
688}
689
690
691
692#ifndef __i386__
693
694
695
696static int
697snd_nm256_playback_silence(struct snd_pcm_substream *substream,
698 int channel,
699 snd_pcm_uframes_t pos,
700 snd_pcm_uframes_t count)
701{
702 struct snd_pcm_runtime *runtime = substream->runtime;
703 struct nm256_stream *s = runtime->private_data;
704 count = frames_to_bytes(runtime, count);
705 pos = frames_to_bytes(runtime, pos);
706 memset_io(s->bufptr + pos, 0, count);
707 return 0;
708}
709
710static int
711snd_nm256_playback_copy(struct snd_pcm_substream *substream,
712 int channel,
713 snd_pcm_uframes_t pos,
714 void __user *src,
715 snd_pcm_uframes_t count)
716{
717 struct snd_pcm_runtime *runtime = substream->runtime;
718 struct nm256_stream *s = runtime->private_data;
719 count = frames_to_bytes(runtime, count);
720 pos = frames_to_bytes(runtime, pos);
721 if (copy_from_user_toio(s->bufptr + pos, src, count))
722 return -EFAULT;
723 return 0;
724}
725
726
727
728
729static int
730snd_nm256_capture_copy(struct snd_pcm_substream *substream,
731 int channel,
732 snd_pcm_uframes_t pos,
733 void __user *dst,
734 snd_pcm_uframes_t count)
735{
736 struct snd_pcm_runtime *runtime = substream->runtime;
737 struct nm256_stream *s = runtime->private_data;
738 count = frames_to_bytes(runtime, count);
739 pos = frames_to_bytes(runtime, pos);
740 if (copy_to_user_fromio(dst, s->bufptr + pos, count))
741 return -EFAULT;
742 return 0;
743}
744
745#endif
746
747
748
749
750
751
752
753static void
754snd_nm256_playback_update(struct nm256 *chip)
755{
756 struct nm256_stream *s;
757
758 s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK];
759 if (s->running && s->substream) {
760 spin_unlock(&chip->reg_lock);
761 snd_pcm_period_elapsed(s->substream);
762 spin_lock(&chip->reg_lock);
763 snd_nm256_playback_mark(chip, s);
764 }
765}
766
767
768static void
769snd_nm256_capture_update(struct nm256 *chip)
770{
771 struct nm256_stream *s;
772
773 s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE];
774 if (s->running && s->substream) {
775 spin_unlock(&chip->reg_lock);
776 snd_pcm_period_elapsed(s->substream);
777 spin_lock(&chip->reg_lock);
778 snd_nm256_capture_mark(chip, s);
779 }
780}
781
782
783
784
785static struct snd_pcm_hardware snd_nm256_playback =
786{
787 .info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID |
788 SNDRV_PCM_INFO_INTERLEAVED |
789
790 SNDRV_PCM_INFO_RESUME,
791 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
792 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
793 .rate_min = 8000,
794 .rate_max = 48000,
795 .channels_min = 1,
796 .channels_max = 2,
797 .periods_min = 2,
798 .periods_max = 1024,
799 .buffer_bytes_max = 128 * 1024,
800 .period_bytes_min = 256,
801 .period_bytes_max = 128 * 1024,
802};
803
804static struct snd_pcm_hardware snd_nm256_capture =
805{
806 .info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID |
807 SNDRV_PCM_INFO_INTERLEAVED |
808
809 SNDRV_PCM_INFO_RESUME,
810 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
811 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
812 .rate_min = 8000,
813 .rate_max = 48000,
814 .channels_min = 1,
815 .channels_max = 2,
816 .periods_min = 2,
817 .periods_max = 1024,
818 .buffer_bytes_max = 128 * 1024,
819 .period_bytes_min = 256,
820 .period_bytes_max = 128 * 1024,
821};
822
823
824
825static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream,
826 struct snd_pcm_hw_params *hw_params)
827{
828
829 substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
830 return 0;
831}
832
833
834
835
836static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s,
837 struct snd_pcm_substream *substream,
838 struct snd_pcm_hardware *hw_ptr)
839{
840 struct snd_pcm_runtime *runtime = substream->runtime;
841
842 s->running = 0;
843 runtime->hw = *hw_ptr;
844 runtime->hw.buffer_bytes_max = s->bufsize;
845 runtime->hw.period_bytes_max = s->bufsize / 2;
846 runtime->dma_area = (void __force *) s->bufptr;
847 runtime->dma_addr = s->bufptr_addr;
848 runtime->dma_bytes = s->bufsize;
849 runtime->private_data = s;
850 s->substream = substream;
851
852 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
853 &constraints_rates);
854}
855
856static int
857snd_nm256_playback_open(struct snd_pcm_substream *substream)
858{
859 struct nm256 *chip = snd_pcm_substream_chip(substream);
860
861 if (snd_nm256_acquire_irq(chip) < 0)
862 return -EBUSY;
863 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK],
864 substream, &snd_nm256_playback);
865 return 0;
866}
867
868static int
869snd_nm256_capture_open(struct snd_pcm_substream *substream)
870{
871 struct nm256 *chip = snd_pcm_substream_chip(substream);
872
873 if (snd_nm256_acquire_irq(chip) < 0)
874 return -EBUSY;
875 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE],
876 substream, &snd_nm256_capture);
877 return 0;
878}
879
880
881
882
883static int
884snd_nm256_playback_close(struct snd_pcm_substream *substream)
885{
886 struct nm256 *chip = snd_pcm_substream_chip(substream);
887
888 snd_nm256_release_irq(chip);
889 return 0;
890}
891
892
893static int
894snd_nm256_capture_close(struct snd_pcm_substream *substream)
895{
896 struct nm256 *chip = snd_pcm_substream_chip(substream);
897
898 snd_nm256_release_irq(chip);
899 return 0;
900}
901
902
903
904
905static struct snd_pcm_ops snd_nm256_playback_ops = {
906 .open = snd_nm256_playback_open,
907 .close = snd_nm256_playback_close,
908 .ioctl = snd_pcm_lib_ioctl,
909 .hw_params = snd_nm256_pcm_hw_params,
910 .prepare = snd_nm256_pcm_prepare,
911 .trigger = snd_nm256_playback_trigger,
912 .pointer = snd_nm256_playback_pointer,
913#ifndef __i386__
914 .copy = snd_nm256_playback_copy,
915 .silence = snd_nm256_playback_silence,
916#endif
917 .mmap = snd_pcm_lib_mmap_iomem,
918};
919
920static struct snd_pcm_ops snd_nm256_capture_ops = {
921 .open = snd_nm256_capture_open,
922 .close = snd_nm256_capture_close,
923 .ioctl = snd_pcm_lib_ioctl,
924 .hw_params = snd_nm256_pcm_hw_params,
925 .prepare = snd_nm256_pcm_prepare,
926 .trigger = snd_nm256_capture_trigger,
927 .pointer = snd_nm256_capture_pointer,
928#ifndef __i386__
929 .copy = snd_nm256_capture_copy,
930#endif
931 .mmap = snd_pcm_lib_mmap_iomem,
932};
933
934static int
935snd_nm256_pcm(struct nm256 *chip, int device)
936{
937 struct snd_pcm *pcm;
938 int i, err;
939
940 for (i = 0; i < 2; i++) {
941 struct nm256_stream *s = &chip->streams[i];
942 s->bufptr = chip->buffer + (s->buf - chip->buffer_start);
943 s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start);
944 }
945
946 err = snd_pcm_new(chip->card, chip->card->driver, device,
947 1, 1, &pcm);
948 if (err < 0)
949 return err;
950
951 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops);
952 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops);
953
954 pcm->private_data = chip;
955 pcm->info_flags = 0;
956 chip->pcm = pcm;
957
958 return 0;
959}
960
961
962
963
964
965static void
966snd_nm256_init_chip(struct nm256 *chip)
967{
968
969 snd_nm256_writeb(chip, 0x0, 0x11);
970 snd_nm256_writew(chip, 0x214, 0);
971
972
973
974}
975
976
977static irqreturn_t
978snd_nm256_intr_check(struct nm256 *chip)
979{
980 if (chip->badintrcount++ > 1000) {
981
982
983
984
985
986
987
988
989
990
991
992
993 if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
994 snd_nm256_playback_stop(chip);
995 if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
996 snd_nm256_capture_stop(chip);
997 chip->badintrcount = 0;
998 return IRQ_HANDLED;
999 }
1000 return IRQ_NONE;
1001}
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012static irqreturn_t
1013snd_nm256_interrupt(int irq, void *dev_id)
1014{
1015 struct nm256 *chip = dev_id;
1016 u16 status;
1017 u8 cbyte;
1018
1019 status = snd_nm256_readw(chip, NM_INT_REG);
1020
1021
1022 if (status == 0)
1023 return snd_nm256_intr_check(chip);
1024
1025 chip->badintrcount = 0;
1026
1027
1028
1029 spin_lock(&chip->reg_lock);
1030 if (status & NM_PLAYBACK_INT) {
1031 status &= ~NM_PLAYBACK_INT;
1032 NM_ACK_INT(chip, NM_PLAYBACK_INT);
1033 snd_nm256_playback_update(chip);
1034 }
1035
1036 if (status & NM_RECORD_INT) {
1037 status &= ~NM_RECORD_INT;
1038 NM_ACK_INT(chip, NM_RECORD_INT);
1039 snd_nm256_capture_update(chip);
1040 }
1041
1042 if (status & NM_MISC_INT_1) {
1043 status &= ~NM_MISC_INT_1;
1044 NM_ACK_INT(chip, NM_MISC_INT_1);
1045 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1046 snd_nm256_writew(chip, NM_INT_REG, 0x8000);
1047 cbyte = snd_nm256_readb(chip, 0x400);
1048 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1049 }
1050
1051 if (status & NM_MISC_INT_2) {
1052 status &= ~NM_MISC_INT_2;
1053 NM_ACK_INT(chip, NM_MISC_INT_2);
1054 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1055 cbyte = snd_nm256_readb(chip, 0x400);
1056 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1057 }
1058
1059
1060 if (status) {
1061 dev_dbg(chip->card->dev,
1062 "NM256: Fire in the hole! Unknown status 0x%x\n",
1063 status);
1064
1065 NM_ACK_INT(chip, status);
1066 }
1067
1068 spin_unlock(&chip->reg_lock);
1069 return IRQ_HANDLED;
1070}
1071
1072
1073
1074
1075
1076
1077
1078static irqreturn_t
1079snd_nm256_interrupt_zx(int irq, void *dev_id)
1080{
1081 struct nm256 *chip = dev_id;
1082 u32 status;
1083 u8 cbyte;
1084
1085 status = snd_nm256_readl(chip, NM_INT_REG);
1086
1087
1088 if (status == 0)
1089 return snd_nm256_intr_check(chip);
1090
1091 chip->badintrcount = 0;
1092
1093
1094
1095 spin_lock(&chip->reg_lock);
1096 if (status & NM2_PLAYBACK_INT) {
1097 status &= ~NM2_PLAYBACK_INT;
1098 NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
1099 snd_nm256_playback_update(chip);
1100 }
1101
1102 if (status & NM2_RECORD_INT) {
1103 status &= ~NM2_RECORD_INT;
1104 NM2_ACK_INT(chip, NM2_RECORD_INT);
1105 snd_nm256_capture_update(chip);
1106 }
1107
1108 if (status & NM2_MISC_INT_1) {
1109 status &= ~NM2_MISC_INT_1;
1110 NM2_ACK_INT(chip, NM2_MISC_INT_1);
1111 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1112 cbyte = snd_nm256_readb(chip, 0x400);
1113 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1114 }
1115
1116 if (status & NM2_MISC_INT_2) {
1117 status &= ~NM2_MISC_INT_2;
1118 NM2_ACK_INT(chip, NM2_MISC_INT_2);
1119 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1120 cbyte = snd_nm256_readb(chip, 0x400);
1121 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1122 }
1123
1124
1125 if (status) {
1126 dev_dbg(chip->card->dev,
1127 "NM256: Fire in the hole! Unknown status 0x%x\n",
1128 status);
1129
1130 NM2_ACK_INT(chip, status);
1131 }
1132
1133 spin_unlock(&chip->reg_lock);
1134 return IRQ_HANDLED;
1135}
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145static int
1146snd_nm256_ac97_ready(struct nm256 *chip)
1147{
1148 int timeout = 10;
1149 u32 testaddr;
1150 u16 testb;
1151
1152 testaddr = chip->mixer_status_offset;
1153 testb = chip->mixer_status_mask;
1154
1155
1156
1157
1158 while (timeout-- > 0) {
1159 if ((snd_nm256_readw(chip, testaddr) & testb) == 0)
1160 return 1;
1161 udelay(100);
1162 }
1163 return 0;
1164}
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174struct initialValues {
1175 unsigned short reg;
1176 unsigned short value;
1177};
1178
1179static struct initialValues nm256_ac97_init_val[] =
1180{
1181 { AC97_MASTER, 0x8000 },
1182 { AC97_HEADPHONE, 0x8000 },
1183 { AC97_MASTER_MONO, 0x8000 },
1184 { AC97_PC_BEEP, 0x8000 },
1185 { AC97_PHONE, 0x8008 },
1186 { AC97_MIC, 0x8000 },
1187 { AC97_LINE, 0x8808 },
1188 { AC97_CD, 0x8808 },
1189 { AC97_VIDEO, 0x8808 },
1190 { AC97_AUX, 0x8808 },
1191 { AC97_PCM, 0x8808 },
1192 { AC97_REC_SEL, 0x0000 },
1193 { AC97_REC_GAIN, 0x0B0B },
1194 { AC97_GENERAL_PURPOSE, 0x0000 },
1195 { AC97_3D_CONTROL, 0x8000 },
1196 { AC97_VENDOR_ID1, 0x8384 },
1197 { AC97_VENDOR_ID2, 0x7609 },
1198};
1199
1200static int nm256_ac97_idx(unsigned short reg)
1201{
1202 int i;
1203 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++)
1204 if (nm256_ac97_init_val[i].reg == reg)
1205 return i;
1206 return -1;
1207}
1208
1209
1210
1211
1212
1213
1214static unsigned short
1215snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1216{
1217 struct nm256 *chip = ac97->private_data;
1218 int idx = nm256_ac97_idx(reg);
1219
1220 if (idx < 0)
1221 return 0;
1222 return chip->ac97_regs[idx];
1223}
1224
1225
1226
1227static void
1228snd_nm256_ac97_write(struct snd_ac97 *ac97,
1229 unsigned short reg, unsigned short val)
1230{
1231 struct nm256 *chip = ac97->private_data;
1232 int tries = 2;
1233 int idx = nm256_ac97_idx(reg);
1234 u32 base;
1235
1236 if (idx < 0)
1237 return;
1238
1239 base = chip->mixer_base;
1240
1241 snd_nm256_ac97_ready(chip);
1242
1243
1244 while (tries-- > 0) {
1245 snd_nm256_writew(chip, base + reg, val);
1246 msleep(1);
1247 if (snd_nm256_ac97_ready(chip)) {
1248
1249 chip->ac97_regs[idx] = val;
1250 return;
1251 }
1252 }
1253 dev_dbg(chip->card->dev, "nm256: ac97 codec not ready..\n");
1254}
1255
1256
1257static struct snd_ac97_res_table nm256_res_table[] = {
1258 { AC97_MASTER, 0x1f1f },
1259 { AC97_HEADPHONE, 0x1f1f },
1260 { AC97_MASTER_MONO, 0x001f },
1261 { AC97_PC_BEEP, 0x001f },
1262 { AC97_PHONE, 0x001f },
1263 { AC97_MIC, 0x001f },
1264 { AC97_LINE, 0x1f1f },
1265 { AC97_CD, 0x1f1f },
1266 { AC97_VIDEO, 0x1f1f },
1267 { AC97_AUX, 0x1f1f },
1268 { AC97_PCM, 0x1f1f },
1269 { AC97_REC_GAIN, 0x0f0f },
1270 { }
1271};
1272
1273
1274static void
1275snd_nm256_ac97_reset(struct snd_ac97 *ac97)
1276{
1277 struct nm256 *chip = ac97->private_data;
1278
1279
1280 snd_nm256_writeb(chip, 0x6c0, 1);
1281 if (! chip->reset_workaround) {
1282
1283 snd_nm256_writeb(chip, 0x6cc, 0x87);
1284 }
1285 if (! chip->reset_workaround_2) {
1286
1287 snd_nm256_writeb(chip, 0x6cc, 0x80);
1288 snd_nm256_writeb(chip, 0x6cc, 0x0);
1289 }
1290 if (! chip->in_resume) {
1291 int i;
1292 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
1293
1294
1295
1296 snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
1297 nm256_ac97_init_val[i].value);
1298 }
1299 }
1300}
1301
1302
1303static int
1304snd_nm256_mixer(struct nm256 *chip)
1305{
1306 struct snd_ac97_bus *pbus;
1307 struct snd_ac97_template ac97;
1308 int err;
1309 static struct snd_ac97_bus_ops ops = {
1310 .reset = snd_nm256_ac97_reset,
1311 .write = snd_nm256_ac97_write,
1312 .read = snd_nm256_ac97_read,
1313 };
1314
1315 chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val),
1316 sizeof(short), GFP_KERNEL);
1317 if (! chip->ac97_regs)
1318 return -ENOMEM;
1319
1320 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1321 return err;
1322
1323 memset(&ac97, 0, sizeof(ac97));
1324 ac97.scaps = AC97_SCAP_AUDIO;
1325 ac97.private_data = chip;
1326 ac97.res_table = nm256_res_table;
1327 pbus->no_vra = 1;
1328 err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1329 if (err < 0)
1330 return err;
1331 if (! (chip->ac97->id & (0xf0000000))) {
1332
1333 sprintf(chip->card->mixername, "%s AC97", chip->card->driver);
1334 }
1335 return 0;
1336}
1337
1338
1339
1340
1341
1342
1343
1344static int
1345snd_nm256_peek_for_sig(struct nm256 *chip)
1346{
1347
1348 void __iomem *temp;
1349
1350 unsigned long pointer_found = chip->buffer_end - 0x1400;
1351 u32 sig;
1352
1353 temp = ioremap_nocache(chip->buffer_addr + chip->buffer_end - 0x400, 16);
1354 if (temp == NULL) {
1355 dev_err(chip->card->dev,
1356 "Unable to scan for card signature in video RAM\n");
1357 return -EBUSY;
1358 }
1359
1360 sig = readl(temp);
1361 if ((sig & NM_SIG_MASK) == NM_SIGNATURE) {
1362 u32 pointer = readl(temp + 4);
1363
1364
1365
1366
1367 if (pointer == 0xffffffff ||
1368 pointer < chip->buffer_size ||
1369 pointer > chip->buffer_end) {
1370 dev_err(chip->card->dev,
1371 "invalid signature found: 0x%x\n", pointer);
1372 iounmap(temp);
1373 return -ENODEV;
1374 } else {
1375 pointer_found = pointer;
1376 dev_info(chip->card->dev,
1377 "found card signature in video RAM: 0x%x\n",
1378 pointer);
1379 }
1380 }
1381
1382 iounmap(temp);
1383 chip->buffer_end = pointer_found;
1384
1385 return 0;
1386}
1387
1388#ifdef CONFIG_PM_SLEEP
1389
1390
1391
1392
1393static int nm256_suspend(struct device *dev)
1394{
1395 struct snd_card *card = dev_get_drvdata(dev);
1396 struct nm256 *chip = card->private_data;
1397
1398 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1399 snd_pcm_suspend_all(chip->pcm);
1400 snd_ac97_suspend(chip->ac97);
1401 chip->coeffs_current = 0;
1402 return 0;
1403}
1404
1405static int nm256_resume(struct device *dev)
1406{
1407 struct snd_card *card = dev_get_drvdata(dev);
1408 struct nm256 *chip = card->private_data;
1409 int i;
1410
1411
1412 chip->in_resume = 1;
1413
1414 snd_nm256_init_chip(chip);
1415
1416
1417 snd_ac97_resume(chip->ac97);
1418
1419 for (i = 0; i < 2; i++) {
1420 struct nm256_stream *s = &chip->streams[i];
1421 if (s->substream && s->suspended) {
1422 spin_lock_irq(&chip->reg_lock);
1423 snd_nm256_set_format(chip, s, s->substream);
1424 spin_unlock_irq(&chip->reg_lock);
1425 }
1426 }
1427
1428 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1429 chip->in_resume = 0;
1430 return 0;
1431}
1432
1433static SIMPLE_DEV_PM_OPS(nm256_pm, nm256_suspend, nm256_resume);
1434#define NM256_PM_OPS &nm256_pm
1435#else
1436#define NM256_PM_OPS NULL
1437#endif
1438
1439static int snd_nm256_free(struct nm256 *chip)
1440{
1441 if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
1442 snd_nm256_playback_stop(chip);
1443 if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
1444 snd_nm256_capture_stop(chip);
1445
1446 if (chip->irq >= 0)
1447 free_irq(chip->irq, chip);
1448
1449 iounmap(chip->cport);
1450 iounmap(chip->buffer);
1451 release_and_free_resource(chip->res_cport);
1452 release_and_free_resource(chip->res_buffer);
1453
1454 pci_disable_device(chip->pci);
1455 kfree(chip->ac97_regs);
1456 kfree(chip);
1457 return 0;
1458}
1459
1460static int snd_nm256_dev_free(struct snd_device *device)
1461{
1462 struct nm256 *chip = device->device_data;
1463 return snd_nm256_free(chip);
1464}
1465
1466static int
1467snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
1468 struct nm256 **chip_ret)
1469{
1470 struct nm256 *chip;
1471 int err, pval;
1472 static struct snd_device_ops ops = {
1473 .dev_free = snd_nm256_dev_free,
1474 };
1475 u32 addr;
1476
1477 *chip_ret = NULL;
1478
1479 if ((err = pci_enable_device(pci)) < 0)
1480 return err;
1481
1482 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1483 if (chip == NULL) {
1484 pci_disable_device(pci);
1485 return -ENOMEM;
1486 }
1487
1488 chip->card = card;
1489 chip->pci = pci;
1490 chip->use_cache = use_cache;
1491 spin_lock_init(&chip->reg_lock);
1492 chip->irq = -1;
1493 mutex_init(&chip->irq_mutex);
1494
1495
1496 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024;
1497 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capture_bufsize * 1024;
1498
1499
1500
1501
1502
1503
1504
1505
1506 chip->buffer_addr = pci_resource_start(pci, 0);
1507 chip->cport_addr = pci_resource_start(pci, 1);
1508
1509
1510
1511 chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE,
1512 card->driver);
1513 if (chip->res_cport == NULL) {
1514 dev_err(card->dev, "memory region 0x%lx (size 0x%x) busy\n",
1515 chip->cport_addr, NM_PORT2_SIZE);
1516 err = -EBUSY;
1517 goto __error;
1518 }
1519 chip->cport = ioremap_nocache(chip->cport_addr, NM_PORT2_SIZE);
1520 if (chip->cport == NULL) {
1521 dev_err(card->dev, "unable to map control port %lx\n",
1522 chip->cport_addr);
1523 err = -ENOMEM;
1524 goto __error;
1525 }
1526
1527 if (!strcmp(card->driver, "NM256AV")) {
1528
1529 pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE);
1530 if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
1531 if (! force_ac97) {
1532 dev_err(card->dev,
1533 "no ac97 is found!\n");
1534 dev_err(card->dev,
1535 "force the driver to load by passing in the module parameter\n");
1536 dev_err(card->dev,
1537 " force_ac97=1\n");
1538 dev_err(card->dev,
1539 "or try sb16, opl3sa2, or cs423x drivers instead.\n");
1540 err = -ENXIO;
1541 goto __error;
1542 }
1543 }
1544 chip->buffer_end = 2560 * 1024;
1545 chip->interrupt = snd_nm256_interrupt;
1546 chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET;
1547 chip->mixer_status_mask = NM_MIXER_READY_MASK;
1548 } else {
1549
1550 if (snd_nm256_readb(chip, 0xa0b) != 0)
1551 chip->buffer_end = 6144 * 1024;
1552 else
1553 chip->buffer_end = 4096 * 1024;
1554
1555 chip->interrupt = snd_nm256_interrupt_zx;
1556 chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET;
1557 chip->mixer_status_mask = NM2_MIXER_READY_MASK;
1558 }
1559
1560 chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize +
1561 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1562 if (chip->use_cache)
1563 chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4;
1564 else
1565 chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE;
1566
1567 if (buffer_top >= chip->buffer_size && buffer_top < chip->buffer_end)
1568 chip->buffer_end = buffer_top;
1569 else {
1570
1571 if ((err = snd_nm256_peek_for_sig(chip)) < 0)
1572 goto __error;
1573 }
1574
1575 chip->buffer_start = chip->buffer_end - chip->buffer_size;
1576 chip->buffer_addr += chip->buffer_start;
1577
1578 dev_info(card->dev, "Mapping port 1 from 0x%x - 0x%x\n",
1579 chip->buffer_start, chip->buffer_end);
1580
1581 chip->res_buffer = request_mem_region(chip->buffer_addr,
1582 chip->buffer_size,
1583 card->driver);
1584 if (chip->res_buffer == NULL) {
1585 dev_err(card->dev, "buffer 0x%lx (size 0x%x) busy\n",
1586 chip->buffer_addr, chip->buffer_size);
1587 err = -EBUSY;
1588 goto __error;
1589 }
1590 chip->buffer = ioremap_nocache(chip->buffer_addr, chip->buffer_size);
1591 if (chip->buffer == NULL) {
1592 err = -ENOMEM;
1593 dev_err(card->dev, "unable to map ring buffer at %lx\n",
1594 chip->buffer_addr);
1595 goto __error;
1596 }
1597
1598
1599 addr = chip->buffer_start;
1600 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr;
1601 addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize;
1602 chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr;
1603 addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1604 if (chip->use_cache) {
1605 chip->all_coeff_buf = addr;
1606 } else {
1607 chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr;
1608 addr += NM_MAX_PLAYBACK_COEF_SIZE;
1609 chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr;
1610 }
1611
1612
1613 chip->mixer_base = NM_MIXER_OFFSET;
1614
1615 chip->coeffs_current = 0;
1616
1617 snd_nm256_init_chip(chip);
1618
1619
1620
1621 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1622 goto __error;
1623
1624 *chip_ret = chip;
1625 return 0;
1626
1627__error:
1628 snd_nm256_free(chip);
1629 return err;
1630}
1631
1632
1633enum { NM_BLACKLISTED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 };
1634
1635static struct snd_pci_quirk nm256_quirks[] = {
1636
1637 SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_BLACKLISTED),
1638
1639 SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND),
1640 SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND),
1641 SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2),
1642 { }
1643};
1644
1645
1646static int snd_nm256_probe(struct pci_dev *pci,
1647 const struct pci_device_id *pci_id)
1648{
1649 struct snd_card *card;
1650 struct nm256 *chip;
1651 int err;
1652 const struct snd_pci_quirk *q;
1653
1654 q = snd_pci_quirk_lookup(pci, nm256_quirks);
1655 if (q) {
1656 dev_dbg(&pci->dev, "Enabled quirk for %s.\n",
1657 snd_pci_quirk_name(q));
1658 switch (q->value) {
1659 case NM_BLACKLISTED:
1660 dev_info(&pci->dev,
1661 "The device is blacklisted. Loading stopped\n");
1662 return -ENODEV;
1663 case NM_RESET_WORKAROUND_2:
1664 reset_workaround_2 = 1;
1665
1666 case NM_RESET_WORKAROUND:
1667 reset_workaround = 1;
1668 break;
1669 }
1670 }
1671
1672 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
1673 if (err < 0)
1674 return err;
1675
1676 switch (pci->device) {
1677 case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
1678 strcpy(card->driver, "NM256AV");
1679 break;
1680 case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO:
1681 strcpy(card->driver, "NM256ZX");
1682 break;
1683 case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO:
1684 strcpy(card->driver, "NM256XL+");
1685 break;
1686 default:
1687 dev_err(&pci->dev, "invalid device id 0x%x\n", pci->device);
1688 snd_card_free(card);
1689 return -EINVAL;
1690 }
1691
1692 if (vaio_hack)
1693 buffer_top = 0x25a800;
1694
1695 if (playback_bufsize < 4)
1696 playback_bufsize = 4;
1697 if (playback_bufsize > 128)
1698 playback_bufsize = 128;
1699 if (capture_bufsize < 4)
1700 capture_bufsize = 4;
1701 if (capture_bufsize > 128)
1702 capture_bufsize = 128;
1703 if ((err = snd_nm256_create(card, pci, &chip)) < 0) {
1704 snd_card_free(card);
1705 return err;
1706 }
1707 card->private_data = chip;
1708
1709 if (reset_workaround) {
1710 dev_dbg(&pci->dev, "reset_workaround activated\n");
1711 chip->reset_workaround = 1;
1712 }
1713
1714 if (reset_workaround_2) {
1715 dev_dbg(&pci->dev, "reset_workaround_2 activated\n");
1716 chip->reset_workaround_2 = 1;
1717 }
1718
1719 if ((err = snd_nm256_pcm(chip, 0)) < 0 ||
1720 (err = snd_nm256_mixer(chip)) < 0) {
1721 snd_card_free(card);
1722 return err;
1723 }
1724
1725 sprintf(card->shortname, "NeoMagic %s", card->driver);
1726 sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d",
1727 card->shortname,
1728 chip->buffer_addr, chip->cport_addr, chip->irq);
1729
1730 if ((err = snd_card_register(card)) < 0) {
1731 snd_card_free(card);
1732 return err;
1733 }
1734
1735 pci_set_drvdata(pci, card);
1736 return 0;
1737}
1738
1739static void snd_nm256_remove(struct pci_dev *pci)
1740{
1741 snd_card_free(pci_get_drvdata(pci));
1742}
1743
1744
1745static struct pci_driver nm256_driver = {
1746 .name = KBUILD_MODNAME,
1747 .id_table = snd_nm256_ids,
1748 .probe = snd_nm256_probe,
1749 .remove = snd_nm256_remove,
1750 .driver = {
1751 .pm = NM256_PM_OPS,
1752 },
1753};
1754
1755module_pci_driver(nm256_driver);
1756