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13#include <linux/io.h>
14#include <linux/delay.h>
15#include <linux/interrupt.h>
16#include <linux/init.h>
17#include <linux/pci.h>
18#include <linux/slab.h>
19#include <linux/module.h>
20#include <linux/mutex.h>
21
22#include <sound/core.h>
23#include <sound/info.h>
24#include <sound/control.h>
25#include <sound/pcm.h>
26#include <sound/ac97_codec.h>
27#include <sound/initval.h>
28
29#define CARD_NAME "NeoMagic 256AV/ZX"
30#define DRIVER_NAME "NM256"
31
32MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
33MODULE_DESCRIPTION("NeoMagic NM256AV/ZX");
34MODULE_LICENSE("GPL");
35
36
37
38
39
40static int index = SNDRV_DEFAULT_IDX1;
41static char *id = SNDRV_DEFAULT_STR1;
42static int playback_bufsize = 16;
43static int capture_bufsize = 16;
44static bool force_ac97;
45static int buffer_top;
46static bool use_cache;
47static bool vaio_hack;
48static bool reset_workaround;
49static bool reset_workaround_2;
50
51module_param(index, int, 0444);
52MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
53module_param(id, charp, 0444);
54MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
55module_param(playback_bufsize, int, 0444);
56MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard.");
57module_param(capture_bufsize, int, 0444);
58MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard.");
59module_param(force_ac97, bool, 0444);
60MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard.");
61module_param(buffer_top, int, 0444);
62MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard.");
63module_param(use_cache, bool, 0444);
64MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access.");
65module_param(vaio_hack, bool, 0444);
66MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks.");
67module_param(reset_workaround, bool, 0444);
68MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops.");
69module_param(reset_workaround_2, bool, 0444);
70MODULE_PARM_DESC(reset_workaround_2, "Enable extended AC97 RESET workaround for some other laptops.");
71
72
73static bool enable;
74module_param(enable, bool, 0444);
75
76
77
78
79
80
81
82
83#define NM_SIGNATURE 0x4e4d0000
84
85#define NM_SIG_MASK 0xffff0000
86
87
88#define NM_PORT2_SIZE 4096
89
90
91#define NM_MIXER_OFFSET 0x600
92
93
94#define NM_MAX_PLAYBACK_COEF_SIZE 0x5000
95#define NM_MAX_RECORD_COEF_SIZE 0x1260
96
97
98#define NM_INT_REG 0xa04
99
100#define NM_PLAYBACK_INT 0x40
101#define NM_RECORD_INT 0x100
102#define NM_MISC_INT_1 0x4000
103#define NM_MISC_INT_2 0x1
104#define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1)
105
106
107#define NM_MIXER_STATUS_OFFSET 0xa04
108#define NM_MIXER_READY_MASK 0x0800
109#define NM_MIXER_PRESENCE 0xa06
110#define NM_PRESENCE_MASK 0x0050
111#define NM_PRESENCE_VALUE 0x0040
112
113
114
115
116
117#define NM2_PLAYBACK_INT 0x10000
118#define NM2_RECORD_INT 0x80000
119#define NM2_MISC_INT_1 0x8
120#define NM2_MISC_INT_2 0x2
121#define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X))
122
123
124#define NM2_MIXER_STATUS_OFFSET 0xa06
125#define NM2_MIXER_READY_MASK 0x0800
126
127
128#define NM_PLAYBACK_REG_OFFSET 0x0
129
130#define NM_RECORD_REG_OFFSET 0x200
131
132
133#define NM_RATE_REG_OFFSET 2
134
135
136#define NM_RATE_STEREO 1
137#define NM_RATE_BITS_16 2
138#define NM_RATE_MASK 0xf0
139
140
141#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
142#define NM_PLAYBACK_ENABLE_FLAG 1
143#define NM_PLAYBACK_ONESHOT 2
144#define NM_PLAYBACK_FREERUN 4
145
146
147#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
148#define NM_AUDIO_MUTE_LEFT 0x8000
149#define NM_AUDIO_MUTE_RIGHT 0x0080
150
151
152#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
153#define NM_RECORD_ENABLE_FLAG 1
154#define NM_RECORD_FREERUN 2
155
156
157#define NM_COEFF_START_OFFSET 0x1c
158#define NM_COEFF_END_OFFSET 0x20
159
160
161#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
162#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10)
163#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
164#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
165
166#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
167#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14)
168#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
169#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
170
171struct nm256_stream {
172
173 struct nm256 *chip;
174 struct snd_pcm_substream *substream;
175 int running;
176 int suspended;
177
178 u32 buf;
179 int bufsize;
180 void __iomem *bufptr;
181 unsigned long bufptr_addr;
182
183 int dma_size;
184 int period_size;
185 int periods;
186 int shift;
187 int cur_period;
188
189};
190
191struct nm256 {
192
193 struct snd_card *card;
194
195 void __iomem *cport;
196 unsigned long cport_addr;
197
198 void __iomem *buffer;
199 unsigned long buffer_addr;
200
201 u32 buffer_start;
202 u32 buffer_end;
203 u32 buffer_size;
204
205 u32 all_coeff_buf;
206 u32 coeff_buf[2];
207
208 unsigned int coeffs_current: 1;
209 unsigned int use_cache: 1;
210 unsigned int reset_workaround: 1;
211 unsigned int reset_workaround_2: 1;
212 unsigned int in_resume: 1;
213
214 int mixer_base;
215 int mixer_status_offset;
216 int mixer_status_mask;
217
218 int irq;
219 int irq_acks;
220 irq_handler_t interrupt;
221 int badintrcount;
222 struct mutex irq_mutex;
223
224 struct nm256_stream streams[2];
225
226 struct snd_ac97 *ac97;
227 unsigned short *ac97_regs;
228
229 struct snd_pcm *pcm;
230
231 struct pci_dev *pci;
232
233 spinlock_t reg_lock;
234
235};
236
237
238
239
240
241#include "nm256_coef.c"
242
243
244
245
246
247static const struct pci_device_id snd_nm256_ids[] = {
248 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0},
249 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0},
250 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0},
251 {0,},
252};
253
254MODULE_DEVICE_TABLE(pci, snd_nm256_ids);
255
256
257
258
259
260
261static inline u8
262snd_nm256_readb(struct nm256 *chip, int offset)
263{
264 return readb(chip->cport + offset);
265}
266
267static inline u16
268snd_nm256_readw(struct nm256 *chip, int offset)
269{
270 return readw(chip->cport + offset);
271}
272
273static inline u32
274snd_nm256_readl(struct nm256 *chip, int offset)
275{
276 return readl(chip->cport + offset);
277}
278
279static inline void
280snd_nm256_writeb(struct nm256 *chip, int offset, u8 val)
281{
282 writeb(val, chip->cport + offset);
283}
284
285static inline void
286snd_nm256_writew(struct nm256 *chip, int offset, u16 val)
287{
288 writew(val, chip->cport + offset);
289}
290
291static inline void
292snd_nm256_writel(struct nm256 *chip, int offset, u32 val)
293{
294 writel(val, chip->cport + offset);
295}
296
297static inline void
298snd_nm256_write_buffer(struct nm256 *chip, const void *src, int offset, int size)
299{
300 offset -= chip->buffer_start;
301#ifdef CONFIG_SND_DEBUG
302 if (offset < 0 || offset >= chip->buffer_size) {
303 dev_err(chip->card->dev,
304 "write_buffer invalid offset = %d size = %d\n",
305 offset, size);
306 return;
307 }
308#endif
309 memcpy_toio(chip->buffer + offset, src, size);
310}
311
312
313
314
315
316static u16
317snd_nm256_get_start_offset(int which)
318{
319 u16 offset = 0;
320 while (which-- > 0)
321 offset += coefficient_sizes[which];
322 return offset;
323}
324
325static void
326snd_nm256_load_one_coefficient(struct nm256 *chip, int stream, u32 port, int which)
327{
328 u32 coeff_buf = chip->coeff_buf[stream];
329 u16 offset = snd_nm256_get_start_offset(which);
330 u16 size = coefficient_sizes[which];
331
332 snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size);
333 snd_nm256_writel(chip, port, coeff_buf);
334
335 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
336 size--;
337 snd_nm256_writel(chip, port + 4, coeff_buf + size);
338}
339
340static void
341snd_nm256_load_coefficient(struct nm256 *chip, int stream, int number)
342{
343
344 u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ?
345 NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG);
346 u32 addr = NM_COEFF_START_OFFSET;
347
348 addr += (stream == SNDRV_PCM_STREAM_CAPTURE ?
349 NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET);
350
351 if (snd_nm256_readb(chip, poffset) & 1) {
352 dev_dbg(chip->card->dev,
353 "NM256: Engine was enabled while loading coefficients!\n");
354 return;
355 }
356
357
358 number &= 7;
359 if (stream == SNDRV_PCM_STREAM_CAPTURE)
360 number += 8;
361
362 if (! chip->use_cache) {
363 snd_nm256_load_one_coefficient(chip, stream, addr, number);
364 return;
365 }
366 if (! chip->coeffs_current) {
367 snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf,
368 NM_TOTAL_COEFF_COUNT * 4);
369 chip->coeffs_current = 1;
370 } else {
371 u32 base = chip->all_coeff_buf;
372 u32 offset = snd_nm256_get_start_offset(number);
373 u32 end_offset = offset + coefficient_sizes[number];
374 snd_nm256_writel(chip, addr, base + offset);
375 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
376 end_offset--;
377 snd_nm256_writel(chip, addr + 4, base + end_offset);
378 }
379}
380
381
382
383static const unsigned int samplerates[8] = {
384 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000,
385};
386static const struct snd_pcm_hw_constraint_list constraints_rates = {
387 .count = ARRAY_SIZE(samplerates),
388 .list = samplerates,
389 .mask = 0,
390};
391
392
393
394
395static int
396snd_nm256_fixed_rate(unsigned int rate)
397{
398 unsigned int i;
399 for (i = 0; i < ARRAY_SIZE(samplerates); i++) {
400 if (rate == samplerates[i])
401 return i;
402 }
403 snd_BUG();
404 return 0;
405}
406
407
408
409
410static void
411snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s,
412 struct snd_pcm_substream *substream)
413{
414 struct snd_pcm_runtime *runtime = substream->runtime;
415 int rate_index = snd_nm256_fixed_rate(runtime->rate);
416 unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK;
417
418 s->shift = 0;
419 if (snd_pcm_format_width(runtime->format) == 16) {
420 ratebits |= NM_RATE_BITS_16;
421 s->shift++;
422 }
423 if (runtime->channels > 1) {
424 ratebits |= NM_RATE_STEREO;
425 s->shift++;
426 }
427
428 runtime->rate = samplerates[rate_index];
429
430 switch (substream->stream) {
431 case SNDRV_PCM_STREAM_PLAYBACK:
432 snd_nm256_load_coefficient(chip, 0, rate_index);
433 snd_nm256_writeb(chip,
434 NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
435 ratebits);
436 break;
437 case SNDRV_PCM_STREAM_CAPTURE:
438 snd_nm256_load_coefficient(chip, 1, rate_index);
439 snd_nm256_writeb(chip,
440 NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
441 ratebits);
442 break;
443 }
444}
445
446
447static int snd_nm256_acquire_irq(struct nm256 *chip)
448{
449 mutex_lock(&chip->irq_mutex);
450 if (chip->irq < 0) {
451 if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED,
452 KBUILD_MODNAME, chip)) {
453 dev_err(chip->card->dev,
454 "unable to grab IRQ %d\n", chip->pci->irq);
455 mutex_unlock(&chip->irq_mutex);
456 return -EBUSY;
457 }
458 chip->irq = chip->pci->irq;
459 chip->card->sync_irq = chip->irq;
460 }
461 chip->irq_acks++;
462 mutex_unlock(&chip->irq_mutex);
463 return 0;
464}
465
466
467static void snd_nm256_release_irq(struct nm256 *chip)
468{
469 mutex_lock(&chip->irq_mutex);
470 if (chip->irq_acks > 0)
471 chip->irq_acks--;
472 if (chip->irq_acks == 0 && chip->irq >= 0) {
473 free_irq(chip->irq, chip);
474 chip->irq = -1;
475 chip->card->sync_irq = -1;
476 }
477 mutex_unlock(&chip->irq_mutex);
478}
479
480
481
482
483
484
485static void snd_nm256_pcm_mark(struct nm256 *chip, struct nm256_stream *s, int reg)
486{
487 s->cur_period++;
488 s->cur_period %= s->periods;
489 snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size);
490}
491
492#define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK)
493#define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK)
494
495static void
496snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s,
497 struct snd_pcm_substream *substream)
498{
499
500 snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
501 snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
502 snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
503 snd_nm256_playback_mark(chip, s);
504
505
506 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
507 NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
508
509 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
510}
511
512static void
513snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s,
514 struct snd_pcm_substream *substream)
515{
516
517 snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
518 snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
519 snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
520 snd_nm256_capture_mark(chip, s);
521
522
523 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
524 NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
525}
526
527
528static void
529snd_nm256_playback_stop(struct nm256 *chip)
530{
531
532 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
533 NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
534
535 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
536}
537
538static void
539snd_nm256_capture_stop(struct nm256 *chip)
540{
541
542 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
543}
544
545static int
546snd_nm256_playback_trigger(struct snd_pcm_substream *substream, int cmd)
547{
548 struct nm256 *chip = snd_pcm_substream_chip(substream);
549 struct nm256_stream *s = substream->runtime->private_data;
550 int err = 0;
551
552 if (snd_BUG_ON(!s))
553 return -ENXIO;
554
555 spin_lock(&chip->reg_lock);
556 switch (cmd) {
557 case SNDRV_PCM_TRIGGER_RESUME:
558 s->suspended = 0;
559 fallthrough;
560 case SNDRV_PCM_TRIGGER_START:
561 if (! s->running) {
562 snd_nm256_playback_start(chip, s, substream);
563 s->running = 1;
564 }
565 break;
566 case SNDRV_PCM_TRIGGER_SUSPEND:
567 s->suspended = 1;
568 fallthrough;
569 case SNDRV_PCM_TRIGGER_STOP:
570 if (s->running) {
571 snd_nm256_playback_stop(chip);
572 s->running = 0;
573 }
574 break;
575 default:
576 err = -EINVAL;
577 break;
578 }
579 spin_unlock(&chip->reg_lock);
580 return err;
581}
582
583static int
584snd_nm256_capture_trigger(struct snd_pcm_substream *substream, int cmd)
585{
586 struct nm256 *chip = snd_pcm_substream_chip(substream);
587 struct nm256_stream *s = substream->runtime->private_data;
588 int err = 0;
589
590 if (snd_BUG_ON(!s))
591 return -ENXIO;
592
593 spin_lock(&chip->reg_lock);
594 switch (cmd) {
595 case SNDRV_PCM_TRIGGER_START:
596 case SNDRV_PCM_TRIGGER_RESUME:
597 if (! s->running) {
598 snd_nm256_capture_start(chip, s, substream);
599 s->running = 1;
600 }
601 break;
602 case SNDRV_PCM_TRIGGER_STOP:
603 case SNDRV_PCM_TRIGGER_SUSPEND:
604 if (s->running) {
605 snd_nm256_capture_stop(chip);
606 s->running = 0;
607 }
608 break;
609 default:
610 err = -EINVAL;
611 break;
612 }
613 spin_unlock(&chip->reg_lock);
614 return err;
615}
616
617
618
619
620
621static int snd_nm256_pcm_prepare(struct snd_pcm_substream *substream)
622{
623 struct nm256 *chip = snd_pcm_substream_chip(substream);
624 struct snd_pcm_runtime *runtime = substream->runtime;
625 struct nm256_stream *s = runtime->private_data;
626
627 if (snd_BUG_ON(!s))
628 return -ENXIO;
629 s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
630 s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
631 s->periods = substream->runtime->periods;
632 s->cur_period = 0;
633
634 spin_lock_irq(&chip->reg_lock);
635 s->running = 0;
636 snd_nm256_set_format(chip, s, substream);
637 spin_unlock_irq(&chip->reg_lock);
638
639 return 0;
640}
641
642
643
644
645
646static snd_pcm_uframes_t
647snd_nm256_playback_pointer(struct snd_pcm_substream *substream)
648{
649 struct nm256 *chip = snd_pcm_substream_chip(substream);
650 struct nm256_stream *s = substream->runtime->private_data;
651 unsigned long curp;
652
653 if (snd_BUG_ON(!s))
654 return 0;
655 curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
656 curp %= s->dma_size;
657 return bytes_to_frames(substream->runtime, curp);
658}
659
660static snd_pcm_uframes_t
661snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
662{
663 struct nm256 *chip = snd_pcm_substream_chip(substream);
664 struct nm256_stream *s = substream->runtime->private_data;
665 unsigned long curp;
666
667 if (snd_BUG_ON(!s))
668 return 0;
669 curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
670 curp %= s->dma_size;
671 return bytes_to_frames(substream->runtime, curp);
672}
673
674
675
676#ifndef __i386__
677
678
679
680static int
681snd_nm256_playback_silence(struct snd_pcm_substream *substream,
682 int channel, unsigned long pos, unsigned long count)
683{
684 struct snd_pcm_runtime *runtime = substream->runtime;
685 struct nm256_stream *s = runtime->private_data;
686
687 memset_io(s->bufptr + pos, 0, count);
688 return 0;
689}
690
691static int
692snd_nm256_playback_copy(struct snd_pcm_substream *substream,
693 int channel, unsigned long pos,
694 void __user *src, unsigned long count)
695{
696 struct snd_pcm_runtime *runtime = substream->runtime;
697 struct nm256_stream *s = runtime->private_data;
698
699 if (copy_from_user_toio(s->bufptr + pos, src, count))
700 return -EFAULT;
701 return 0;
702}
703
704static int
705snd_nm256_playback_copy_kernel(struct snd_pcm_substream *substream,
706 int channel, unsigned long pos,
707 void *src, unsigned long count)
708{
709 struct snd_pcm_runtime *runtime = substream->runtime;
710 struct nm256_stream *s = runtime->private_data;
711
712 memcpy_toio(s->bufptr + pos, src, count);
713 return 0;
714}
715
716
717
718
719static int
720snd_nm256_capture_copy(struct snd_pcm_substream *substream,
721 int channel, unsigned long pos,
722 void __user *dst, unsigned long count)
723{
724 struct snd_pcm_runtime *runtime = substream->runtime;
725 struct nm256_stream *s = runtime->private_data;
726
727 if (copy_to_user_fromio(dst, s->bufptr + pos, count))
728 return -EFAULT;
729 return 0;
730}
731
732static int
733snd_nm256_capture_copy_kernel(struct snd_pcm_substream *substream,
734 int channel, unsigned long pos,
735 void *dst, unsigned long count)
736{
737 struct snd_pcm_runtime *runtime = substream->runtime;
738 struct nm256_stream *s = runtime->private_data;
739
740 memcpy_fromio(dst, s->bufptr + pos, count);
741 return 0;
742}
743
744#endif
745
746
747
748
749
750
751
752static void
753snd_nm256_playback_update(struct nm256 *chip)
754{
755 struct nm256_stream *s;
756
757 s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK];
758 if (s->running && s->substream) {
759 spin_unlock(&chip->reg_lock);
760 snd_pcm_period_elapsed(s->substream);
761 spin_lock(&chip->reg_lock);
762 snd_nm256_playback_mark(chip, s);
763 }
764}
765
766
767static void
768snd_nm256_capture_update(struct nm256 *chip)
769{
770 struct nm256_stream *s;
771
772 s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE];
773 if (s->running && s->substream) {
774 spin_unlock(&chip->reg_lock);
775 snd_pcm_period_elapsed(s->substream);
776 spin_lock(&chip->reg_lock);
777 snd_nm256_capture_mark(chip, s);
778 }
779}
780
781
782
783
784static const struct snd_pcm_hardware snd_nm256_playback =
785{
786 .info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID |
787 SNDRV_PCM_INFO_INTERLEAVED |
788
789 SNDRV_PCM_INFO_RESUME,
790 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
791 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
792 .rate_min = 8000,
793 .rate_max = 48000,
794 .channels_min = 1,
795 .channels_max = 2,
796 .periods_min = 2,
797 .periods_max = 1024,
798 .buffer_bytes_max = 128 * 1024,
799 .period_bytes_min = 256,
800 .period_bytes_max = 128 * 1024,
801};
802
803static const struct snd_pcm_hardware snd_nm256_capture =
804{
805 .info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID |
806 SNDRV_PCM_INFO_INTERLEAVED |
807
808 SNDRV_PCM_INFO_RESUME,
809 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
810 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
811 .rate_min = 8000,
812 .rate_max = 48000,
813 .channels_min = 1,
814 .channels_max = 2,
815 .periods_min = 2,
816 .periods_max = 1024,
817 .buffer_bytes_max = 128 * 1024,
818 .period_bytes_min = 256,
819 .period_bytes_max = 128 * 1024,
820};
821
822
823
824static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream,
825 struct snd_pcm_hw_params *hw_params)
826{
827
828 substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
829 return 0;
830}
831
832
833
834
835static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s,
836 struct snd_pcm_substream *substream,
837 const struct snd_pcm_hardware *hw_ptr)
838{
839 struct snd_pcm_runtime *runtime = substream->runtime;
840
841 s->running = 0;
842 runtime->hw = *hw_ptr;
843 runtime->hw.buffer_bytes_max = s->bufsize;
844 runtime->hw.period_bytes_max = s->bufsize / 2;
845 runtime->dma_area = (void __force *) s->bufptr;
846 runtime->dma_addr = s->bufptr_addr;
847 runtime->dma_bytes = s->bufsize;
848 runtime->private_data = s;
849 s->substream = substream;
850
851 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
852 &constraints_rates);
853}
854
855static int
856snd_nm256_playback_open(struct snd_pcm_substream *substream)
857{
858 struct nm256 *chip = snd_pcm_substream_chip(substream);
859
860 if (snd_nm256_acquire_irq(chip) < 0)
861 return -EBUSY;
862 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK],
863 substream, &snd_nm256_playback);
864 return 0;
865}
866
867static int
868snd_nm256_capture_open(struct snd_pcm_substream *substream)
869{
870 struct nm256 *chip = snd_pcm_substream_chip(substream);
871
872 if (snd_nm256_acquire_irq(chip) < 0)
873 return -EBUSY;
874 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE],
875 substream, &snd_nm256_capture);
876 return 0;
877}
878
879
880
881
882static int
883snd_nm256_playback_close(struct snd_pcm_substream *substream)
884{
885 struct nm256 *chip = snd_pcm_substream_chip(substream);
886
887 snd_nm256_release_irq(chip);
888 return 0;
889}
890
891
892static int
893snd_nm256_capture_close(struct snd_pcm_substream *substream)
894{
895 struct nm256 *chip = snd_pcm_substream_chip(substream);
896
897 snd_nm256_release_irq(chip);
898 return 0;
899}
900
901
902
903
904static const struct snd_pcm_ops snd_nm256_playback_ops = {
905 .open = snd_nm256_playback_open,
906 .close = snd_nm256_playback_close,
907 .hw_params = snd_nm256_pcm_hw_params,
908 .prepare = snd_nm256_pcm_prepare,
909 .trigger = snd_nm256_playback_trigger,
910 .pointer = snd_nm256_playback_pointer,
911#ifndef __i386__
912 .copy_user = snd_nm256_playback_copy,
913 .copy_kernel = snd_nm256_playback_copy_kernel,
914 .fill_silence = snd_nm256_playback_silence,
915#endif
916 .mmap = snd_pcm_lib_mmap_iomem,
917};
918
919static const struct snd_pcm_ops snd_nm256_capture_ops = {
920 .open = snd_nm256_capture_open,
921 .close = snd_nm256_capture_close,
922 .hw_params = snd_nm256_pcm_hw_params,
923 .prepare = snd_nm256_pcm_prepare,
924 .trigger = snd_nm256_capture_trigger,
925 .pointer = snd_nm256_capture_pointer,
926#ifndef __i386__
927 .copy_user = snd_nm256_capture_copy,
928 .copy_kernel = snd_nm256_capture_copy_kernel,
929#endif
930 .mmap = snd_pcm_lib_mmap_iomem,
931};
932
933static int
934snd_nm256_pcm(struct nm256 *chip, int device)
935{
936 struct snd_pcm *pcm;
937 int i, err;
938
939 for (i = 0; i < 2; i++) {
940 struct nm256_stream *s = &chip->streams[i];
941 s->bufptr = chip->buffer + (s->buf - chip->buffer_start);
942 s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start);
943 }
944
945 err = snd_pcm_new(chip->card, chip->card->driver, device,
946 1, 1, &pcm);
947 if (err < 0)
948 return err;
949
950 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops);
951 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops);
952
953 pcm->private_data = chip;
954 pcm->info_flags = 0;
955 chip->pcm = pcm;
956
957 return 0;
958}
959
960
961
962
963
964static void
965snd_nm256_init_chip(struct nm256 *chip)
966{
967
968 snd_nm256_writeb(chip, 0x0, 0x11);
969 snd_nm256_writew(chip, 0x214, 0);
970
971
972
973}
974
975
976static irqreturn_t
977snd_nm256_intr_check(struct nm256 *chip)
978{
979 if (chip->badintrcount++ > 1000) {
980
981
982
983
984
985
986
987
988
989
990
991
992 if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
993 snd_nm256_playback_stop(chip);
994 if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
995 snd_nm256_capture_stop(chip);
996 chip->badintrcount = 0;
997 return IRQ_HANDLED;
998 }
999 return IRQ_NONE;
1000}
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011static irqreturn_t
1012snd_nm256_interrupt(int irq, void *dev_id)
1013{
1014 struct nm256 *chip = dev_id;
1015 u16 status;
1016 u8 cbyte;
1017
1018 status = snd_nm256_readw(chip, NM_INT_REG);
1019
1020
1021 if (status == 0)
1022 return snd_nm256_intr_check(chip);
1023
1024 chip->badintrcount = 0;
1025
1026
1027
1028 spin_lock(&chip->reg_lock);
1029 if (status & NM_PLAYBACK_INT) {
1030 status &= ~NM_PLAYBACK_INT;
1031 NM_ACK_INT(chip, NM_PLAYBACK_INT);
1032 snd_nm256_playback_update(chip);
1033 }
1034
1035 if (status & NM_RECORD_INT) {
1036 status &= ~NM_RECORD_INT;
1037 NM_ACK_INT(chip, NM_RECORD_INT);
1038 snd_nm256_capture_update(chip);
1039 }
1040
1041 if (status & NM_MISC_INT_1) {
1042 status &= ~NM_MISC_INT_1;
1043 NM_ACK_INT(chip, NM_MISC_INT_1);
1044 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1045 snd_nm256_writew(chip, NM_INT_REG, 0x8000);
1046 cbyte = snd_nm256_readb(chip, 0x400);
1047 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1048 }
1049
1050 if (status & NM_MISC_INT_2) {
1051 status &= ~NM_MISC_INT_2;
1052 NM_ACK_INT(chip, NM_MISC_INT_2);
1053 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1054 cbyte = snd_nm256_readb(chip, 0x400);
1055 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1056 }
1057
1058
1059 if (status) {
1060 dev_dbg(chip->card->dev,
1061 "NM256: Fire in the hole! Unknown status 0x%x\n",
1062 status);
1063
1064 NM_ACK_INT(chip, status);
1065 }
1066
1067 spin_unlock(&chip->reg_lock);
1068 return IRQ_HANDLED;
1069}
1070
1071
1072
1073
1074
1075
1076
1077static irqreturn_t
1078snd_nm256_interrupt_zx(int irq, void *dev_id)
1079{
1080 struct nm256 *chip = dev_id;
1081 u32 status;
1082 u8 cbyte;
1083
1084 status = snd_nm256_readl(chip, NM_INT_REG);
1085
1086
1087 if (status == 0)
1088 return snd_nm256_intr_check(chip);
1089
1090 chip->badintrcount = 0;
1091
1092
1093
1094 spin_lock(&chip->reg_lock);
1095 if (status & NM2_PLAYBACK_INT) {
1096 status &= ~NM2_PLAYBACK_INT;
1097 NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
1098 snd_nm256_playback_update(chip);
1099 }
1100
1101 if (status & NM2_RECORD_INT) {
1102 status &= ~NM2_RECORD_INT;
1103 NM2_ACK_INT(chip, NM2_RECORD_INT);
1104 snd_nm256_capture_update(chip);
1105 }
1106
1107 if (status & NM2_MISC_INT_1) {
1108 status &= ~NM2_MISC_INT_1;
1109 NM2_ACK_INT(chip, NM2_MISC_INT_1);
1110 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1111 cbyte = snd_nm256_readb(chip, 0x400);
1112 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1113 }
1114
1115 if (status & NM2_MISC_INT_2) {
1116 status &= ~NM2_MISC_INT_2;
1117 NM2_ACK_INT(chip, NM2_MISC_INT_2);
1118 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1119 cbyte = snd_nm256_readb(chip, 0x400);
1120 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1121 }
1122
1123
1124 if (status) {
1125 dev_dbg(chip->card->dev,
1126 "NM256: Fire in the hole! Unknown status 0x%x\n",
1127 status);
1128
1129 NM2_ACK_INT(chip, status);
1130 }
1131
1132 spin_unlock(&chip->reg_lock);
1133 return IRQ_HANDLED;
1134}
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144static int
1145snd_nm256_ac97_ready(struct nm256 *chip)
1146{
1147 int timeout = 10;
1148 u32 testaddr;
1149 u16 testb;
1150
1151 testaddr = chip->mixer_status_offset;
1152 testb = chip->mixer_status_mask;
1153
1154
1155
1156
1157 while (timeout-- > 0) {
1158 if ((snd_nm256_readw(chip, testaddr) & testb) == 0)
1159 return 1;
1160 udelay(100);
1161 }
1162 return 0;
1163}
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173struct initialValues {
1174 unsigned short reg;
1175 unsigned short value;
1176};
1177
1178static const struct initialValues nm256_ac97_init_val[] =
1179{
1180 { AC97_MASTER, 0x8000 },
1181 { AC97_HEADPHONE, 0x8000 },
1182 { AC97_MASTER_MONO, 0x8000 },
1183 { AC97_PC_BEEP, 0x8000 },
1184 { AC97_PHONE, 0x8008 },
1185 { AC97_MIC, 0x8000 },
1186 { AC97_LINE, 0x8808 },
1187 { AC97_CD, 0x8808 },
1188 { AC97_VIDEO, 0x8808 },
1189 { AC97_AUX, 0x8808 },
1190 { AC97_PCM, 0x8808 },
1191 { AC97_REC_SEL, 0x0000 },
1192 { AC97_REC_GAIN, 0x0B0B },
1193 { AC97_GENERAL_PURPOSE, 0x0000 },
1194 { AC97_3D_CONTROL, 0x8000 },
1195 { AC97_VENDOR_ID1, 0x8384 },
1196 { AC97_VENDOR_ID2, 0x7609 },
1197};
1198
1199static int nm256_ac97_idx(unsigned short reg)
1200{
1201 int i;
1202 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++)
1203 if (nm256_ac97_init_val[i].reg == reg)
1204 return i;
1205 return -1;
1206}
1207
1208
1209
1210
1211
1212
1213static unsigned short
1214snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1215{
1216 struct nm256 *chip = ac97->private_data;
1217 int idx = nm256_ac97_idx(reg);
1218
1219 if (idx < 0)
1220 return 0;
1221 return chip->ac97_regs[idx];
1222}
1223
1224
1225
1226static void
1227snd_nm256_ac97_write(struct snd_ac97 *ac97,
1228 unsigned short reg, unsigned short val)
1229{
1230 struct nm256 *chip = ac97->private_data;
1231 int tries = 2;
1232 int idx = nm256_ac97_idx(reg);
1233 u32 base;
1234
1235 if (idx < 0)
1236 return;
1237
1238 base = chip->mixer_base;
1239
1240 snd_nm256_ac97_ready(chip);
1241
1242
1243 while (tries-- > 0) {
1244 snd_nm256_writew(chip, base + reg, val);
1245 msleep(1);
1246 if (snd_nm256_ac97_ready(chip)) {
1247
1248 chip->ac97_regs[idx] = val;
1249 return;
1250 }
1251 }
1252 dev_dbg(chip->card->dev, "nm256: ac97 codec not ready..\n");
1253}
1254
1255
1256static const struct snd_ac97_res_table nm256_res_table[] = {
1257 { AC97_MASTER, 0x1f1f },
1258 { AC97_HEADPHONE, 0x1f1f },
1259 { AC97_MASTER_MONO, 0x001f },
1260 { AC97_PC_BEEP, 0x001f },
1261 { AC97_PHONE, 0x001f },
1262 { AC97_MIC, 0x001f },
1263 { AC97_LINE, 0x1f1f },
1264 { AC97_CD, 0x1f1f },
1265 { AC97_VIDEO, 0x1f1f },
1266 { AC97_AUX, 0x1f1f },
1267 { AC97_PCM, 0x1f1f },
1268 { AC97_REC_GAIN, 0x0f0f },
1269 { }
1270};
1271
1272
1273static void
1274snd_nm256_ac97_reset(struct snd_ac97 *ac97)
1275{
1276 struct nm256 *chip = ac97->private_data;
1277
1278
1279 snd_nm256_writeb(chip, 0x6c0, 1);
1280 if (! chip->reset_workaround) {
1281
1282 snd_nm256_writeb(chip, 0x6cc, 0x87);
1283 }
1284 if (! chip->reset_workaround_2) {
1285
1286 snd_nm256_writeb(chip, 0x6cc, 0x80);
1287 snd_nm256_writeb(chip, 0x6cc, 0x0);
1288 }
1289 if (! chip->in_resume) {
1290 int i;
1291 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
1292
1293
1294
1295 snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
1296 nm256_ac97_init_val[i].value);
1297 }
1298 }
1299}
1300
1301
1302static int
1303snd_nm256_mixer(struct nm256 *chip)
1304{
1305 struct snd_ac97_bus *pbus;
1306 struct snd_ac97_template ac97;
1307 int err;
1308 static const struct snd_ac97_bus_ops ops = {
1309 .reset = snd_nm256_ac97_reset,
1310 .write = snd_nm256_ac97_write,
1311 .read = snd_nm256_ac97_read,
1312 };
1313
1314 chip->ac97_regs = devm_kcalloc(chip->card->dev,
1315 ARRAY_SIZE(nm256_ac97_init_val),
1316 sizeof(short), GFP_KERNEL);
1317 if (! chip->ac97_regs)
1318 return -ENOMEM;
1319
1320 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus);
1321 if (err < 0)
1322 return err;
1323
1324 memset(&ac97, 0, sizeof(ac97));
1325 ac97.scaps = AC97_SCAP_AUDIO;
1326 ac97.private_data = chip;
1327 ac97.res_table = nm256_res_table;
1328 pbus->no_vra = 1;
1329 err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1330 if (err < 0)
1331 return err;
1332 if (! (chip->ac97->id & (0xf0000000))) {
1333
1334 sprintf(chip->card->mixername, "%s AC97", chip->card->driver);
1335 }
1336 return 0;
1337}
1338
1339
1340
1341
1342
1343
1344
1345static int
1346snd_nm256_peek_for_sig(struct nm256 *chip)
1347{
1348
1349 void __iomem *temp;
1350
1351 unsigned long pointer_found = chip->buffer_end - 0x1400;
1352 u32 sig;
1353
1354 temp = ioremap(chip->buffer_addr + chip->buffer_end - 0x400, 16);
1355 if (temp == NULL) {
1356 dev_err(chip->card->dev,
1357 "Unable to scan for card signature in video RAM\n");
1358 return -EBUSY;
1359 }
1360
1361 sig = readl(temp);
1362 if ((sig & NM_SIG_MASK) == NM_SIGNATURE) {
1363 u32 pointer = readl(temp + 4);
1364
1365
1366
1367
1368 if (pointer == 0xffffffff ||
1369 pointer < chip->buffer_size ||
1370 pointer > chip->buffer_end) {
1371 dev_err(chip->card->dev,
1372 "invalid signature found: 0x%x\n", pointer);
1373 iounmap(temp);
1374 return -ENODEV;
1375 } else {
1376 pointer_found = pointer;
1377 dev_info(chip->card->dev,
1378 "found card signature in video RAM: 0x%x\n",
1379 pointer);
1380 }
1381 }
1382
1383 iounmap(temp);
1384 chip->buffer_end = pointer_found;
1385
1386 return 0;
1387}
1388
1389#ifdef CONFIG_PM_SLEEP
1390
1391
1392
1393
1394static int nm256_suspend(struct device *dev)
1395{
1396 struct snd_card *card = dev_get_drvdata(dev);
1397 struct nm256 *chip = card->private_data;
1398
1399 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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 void snd_nm256_free(struct snd_card *card)
1440{
1441 struct nm256 *chip = card->private_data;
1442
1443 if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
1444 snd_nm256_playback_stop(chip);
1445 if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
1446 snd_nm256_capture_stop(chip);
1447}
1448
1449static int
1450snd_nm256_create(struct snd_card *card, struct pci_dev *pci)
1451{
1452 struct nm256 *chip = card->private_data;
1453 int err, pval;
1454 u32 addr;
1455
1456 err = pcim_enable_device(pci);
1457 if (err < 0)
1458 return err;
1459
1460 chip->card = card;
1461 chip->pci = pci;
1462 chip->use_cache = use_cache;
1463 spin_lock_init(&chip->reg_lock);
1464 chip->irq = -1;
1465 mutex_init(&chip->irq_mutex);
1466
1467
1468 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024;
1469 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capture_bufsize * 1024;
1470
1471
1472
1473
1474
1475
1476
1477
1478 chip->buffer_addr = pci_resource_start(pci, 0);
1479 chip->cport_addr = pci_resource_start(pci, 1);
1480
1481 err = pci_request_regions(pci, card->driver);
1482 if (err < 0)
1483 return err;
1484
1485
1486
1487 chip->cport = devm_ioremap(&pci->dev, chip->cport_addr, NM_PORT2_SIZE);
1488 if (!chip->cport) {
1489 dev_err(card->dev, "unable to map control port %lx\n",
1490 chip->cport_addr);
1491 return -ENOMEM;
1492 }
1493
1494 if (!strcmp(card->driver, "NM256AV")) {
1495
1496 pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE);
1497 if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
1498 if (! force_ac97) {
1499 dev_err(card->dev,
1500 "no ac97 is found!\n");
1501 dev_err(card->dev,
1502 "force the driver to load by passing in the module parameter\n");
1503 dev_err(card->dev,
1504 " force_ac97=1\n");
1505 dev_err(card->dev,
1506 "or try sb16, opl3sa2, or cs423x drivers instead.\n");
1507 return -ENXIO;
1508 }
1509 }
1510 chip->buffer_end = 2560 * 1024;
1511 chip->interrupt = snd_nm256_interrupt;
1512 chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET;
1513 chip->mixer_status_mask = NM_MIXER_READY_MASK;
1514 } else {
1515
1516 if (snd_nm256_readb(chip, 0xa0b) != 0)
1517 chip->buffer_end = 6144 * 1024;
1518 else
1519 chip->buffer_end = 4096 * 1024;
1520
1521 chip->interrupt = snd_nm256_interrupt_zx;
1522 chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET;
1523 chip->mixer_status_mask = NM2_MIXER_READY_MASK;
1524 }
1525
1526 chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize +
1527 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1528 if (chip->use_cache)
1529 chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4;
1530 else
1531 chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE;
1532
1533 if (buffer_top >= chip->buffer_size && buffer_top < chip->buffer_end)
1534 chip->buffer_end = buffer_top;
1535 else {
1536
1537 err = snd_nm256_peek_for_sig(chip);
1538 if (err < 0)
1539 return err;
1540 }
1541
1542 chip->buffer_start = chip->buffer_end - chip->buffer_size;
1543 chip->buffer_addr += chip->buffer_start;
1544
1545 dev_info(card->dev, "Mapping port 1 from 0x%x - 0x%x\n",
1546 chip->buffer_start, chip->buffer_end);
1547
1548 chip->buffer = devm_ioremap(&pci->dev, chip->buffer_addr,
1549 chip->buffer_size);
1550 if (!chip->buffer) {
1551 dev_err(card->dev, "unable to map ring buffer at %lx\n",
1552 chip->buffer_addr);
1553 return -ENOMEM;
1554 }
1555
1556
1557 addr = chip->buffer_start;
1558 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr;
1559 addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize;
1560 chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr;
1561 addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1562 if (chip->use_cache) {
1563 chip->all_coeff_buf = addr;
1564 } else {
1565 chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr;
1566 addr += NM_MAX_PLAYBACK_COEF_SIZE;
1567 chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr;
1568 }
1569
1570
1571 chip->mixer_base = NM_MIXER_OFFSET;
1572
1573 chip->coeffs_current = 0;
1574
1575 snd_nm256_init_chip(chip);
1576 card->private_free = snd_nm256_free;
1577
1578
1579 return 0;
1580}
1581
1582
1583enum { NM_IGNORED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 };
1584
1585static const struct snd_pci_quirk nm256_quirks[] = {
1586
1587 SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_IGNORED),
1588
1589 SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND),
1590 SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND),
1591 SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2),
1592 { }
1593};
1594
1595
1596static int snd_nm256_probe(struct pci_dev *pci,
1597 const struct pci_device_id *pci_id)
1598{
1599 struct snd_card *card;
1600 struct nm256 *chip;
1601 int err;
1602 const struct snd_pci_quirk *q;
1603
1604 q = snd_pci_quirk_lookup(pci, nm256_quirks);
1605 if (q) {
1606 dev_dbg(&pci->dev, "Enabled quirk for %s.\n",
1607 snd_pci_quirk_name(q));
1608 switch (q->value) {
1609 case NM_IGNORED:
1610 dev_info(&pci->dev,
1611 "The device is on the denylist. Loading stopped\n");
1612 return -ENODEV;
1613 case NM_RESET_WORKAROUND_2:
1614 reset_workaround_2 = 1;
1615 fallthrough;
1616 case NM_RESET_WORKAROUND:
1617 reset_workaround = 1;
1618 break;
1619 }
1620 }
1621
1622 err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
1623 sizeof(*chip), &card);
1624 if (err < 0)
1625 return err;
1626 chip = card->private_data;
1627
1628 switch (pci->device) {
1629 case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
1630 strcpy(card->driver, "NM256AV");
1631 break;
1632 case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO:
1633 strcpy(card->driver, "NM256ZX");
1634 break;
1635 case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO:
1636 strcpy(card->driver, "NM256XL+");
1637 break;
1638 default:
1639 dev_err(&pci->dev, "invalid device id 0x%x\n", pci->device);
1640 return -EINVAL;
1641 }
1642
1643 if (vaio_hack)
1644 buffer_top = 0x25a800;
1645
1646 if (playback_bufsize < 4)
1647 playback_bufsize = 4;
1648 if (playback_bufsize > 128)
1649 playback_bufsize = 128;
1650 if (capture_bufsize < 4)
1651 capture_bufsize = 4;
1652 if (capture_bufsize > 128)
1653 capture_bufsize = 128;
1654 err = snd_nm256_create(card, pci);
1655 if (err < 0)
1656 return err;
1657
1658 if (reset_workaround) {
1659 dev_dbg(&pci->dev, "reset_workaround activated\n");
1660 chip->reset_workaround = 1;
1661 }
1662
1663 if (reset_workaround_2) {
1664 dev_dbg(&pci->dev, "reset_workaround_2 activated\n");
1665 chip->reset_workaround_2 = 1;
1666 }
1667
1668 err = snd_nm256_pcm(chip, 0);
1669 if (err < 0)
1670 return err;
1671 err = snd_nm256_mixer(chip);
1672 if (err < 0)
1673 return err;
1674
1675 sprintf(card->shortname, "NeoMagic %s", card->driver);
1676 sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d",
1677 card->shortname,
1678 chip->buffer_addr, chip->cport_addr, chip->irq);
1679
1680 err = snd_card_register(card);
1681 if (err < 0)
1682 return err;
1683
1684 pci_set_drvdata(pci, card);
1685 return 0;
1686}
1687
1688static struct pci_driver nm256_driver = {
1689 .name = KBUILD_MODNAME,
1690 .id_table = snd_nm256_ids,
1691 .probe = snd_nm256_probe,
1692 .driver = {
1693 .pm = NM256_PM_OPS,
1694 },
1695};
1696
1697module_pci_driver(nm256_driver);
1698