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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");
35MODULE_SUPPORTED_DEVICE("{{NeoMagic,NM256AV},"
36 "{NeoMagic,NM256ZX}}");
37
38
39
40
41
42static int index = SNDRV_DEFAULT_IDX1;
43static char *id = SNDRV_DEFAULT_STR1;
44static int playback_bufsize = 16;
45static int capture_bufsize = 16;
46static bool force_ac97;
47static int buffer_top;
48static bool use_cache;
49static bool vaio_hack;
50static bool reset_workaround;
51static bool reset_workaround_2;
52
53module_param(index, int, 0444);
54MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
55module_param(id, charp, 0444);
56MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
57module_param(playback_bufsize, int, 0444);
58MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard.");
59module_param(capture_bufsize, int, 0444);
60MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard.");
61module_param(force_ac97, bool, 0444);
62MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard.");
63module_param(buffer_top, int, 0444);
64MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard.");
65module_param(use_cache, bool, 0444);
66MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access.");
67module_param(vaio_hack, bool, 0444);
68MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks.");
69module_param(reset_workaround, bool, 0444);
70MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops.");
71module_param(reset_workaround_2, bool, 0444);
72MODULE_PARM_DESC(reset_workaround_2, "Enable extended AC97 RESET workaround for some other laptops.");
73
74
75static bool enable;
76module_param(enable, bool, 0444);
77
78
79
80
81
82
83
84
85#define NM_SIGNATURE 0x4e4d0000
86
87#define NM_SIG_MASK 0xffff0000
88
89
90#define NM_PORT2_SIZE 4096
91
92
93#define NM_MIXER_OFFSET 0x600
94
95
96#define NM_MAX_PLAYBACK_COEF_SIZE 0x5000
97#define NM_MAX_RECORD_COEF_SIZE 0x1260
98
99
100#define NM_INT_REG 0xa04
101
102#define NM_PLAYBACK_INT 0x40
103#define NM_RECORD_INT 0x100
104#define NM_MISC_INT_1 0x4000
105#define NM_MISC_INT_2 0x1
106#define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1)
107
108
109#define NM_MIXER_STATUS_OFFSET 0xa04
110#define NM_MIXER_READY_MASK 0x0800
111#define NM_MIXER_PRESENCE 0xa06
112#define NM_PRESENCE_MASK 0x0050
113#define NM_PRESENCE_VALUE 0x0040
114
115
116
117
118
119#define NM2_PLAYBACK_INT 0x10000
120#define NM2_RECORD_INT 0x80000
121#define NM2_MISC_INT_1 0x8
122#define NM2_MISC_INT_2 0x2
123#define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X))
124
125
126#define NM2_MIXER_STATUS_OFFSET 0xa06
127#define NM2_MIXER_READY_MASK 0x0800
128
129
130#define NM_PLAYBACK_REG_OFFSET 0x0
131
132#define NM_RECORD_REG_OFFSET 0x200
133
134
135#define NM_RATE_REG_OFFSET 2
136
137
138#define NM_RATE_STEREO 1
139#define NM_RATE_BITS_16 2
140#define NM_RATE_MASK 0xf0
141
142
143#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
144#define NM_PLAYBACK_ENABLE_FLAG 1
145#define NM_PLAYBACK_ONESHOT 2
146#define NM_PLAYBACK_FREERUN 4
147
148
149#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
150#define NM_AUDIO_MUTE_LEFT 0x8000
151#define NM_AUDIO_MUTE_RIGHT 0x0080
152
153
154#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
155#define NM_RECORD_ENABLE_FLAG 1
156#define NM_RECORD_FREERUN 2
157
158
159#define NM_COEFF_START_OFFSET 0x1c
160#define NM_COEFF_END_OFFSET 0x20
161
162
163#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
164#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10)
165#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
166#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
167
168#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
169#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14)
170#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
171#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
172
173struct nm256_stream {
174
175 struct nm256 *chip;
176 struct snd_pcm_substream *substream;
177 int running;
178 int suspended;
179
180 u32 buf;
181 int bufsize;
182 void __iomem *bufptr;
183 unsigned long bufptr_addr;
184
185 int dma_size;
186 int period_size;
187 int periods;
188 int shift;
189 int cur_period;
190
191};
192
193struct nm256 {
194
195 struct snd_card *card;
196
197 void __iomem *cport;
198 struct resource *res_cport;
199 unsigned long cport_addr;
200
201 void __iomem *buffer;
202 struct resource *res_buffer;
203 unsigned long buffer_addr;
204
205 u32 buffer_start;
206 u32 buffer_end;
207 u32 buffer_size;
208
209 u32 all_coeff_buf;
210 u32 coeff_buf[2];
211
212 unsigned int coeffs_current: 1;
213 unsigned int use_cache: 1;
214 unsigned int reset_workaround: 1;
215 unsigned int reset_workaround_2: 1;
216 unsigned int in_resume: 1;
217
218 int mixer_base;
219 int mixer_status_offset;
220 int mixer_status_mask;
221
222 int irq;
223 int irq_acks;
224 irq_handler_t interrupt;
225 int badintrcount;
226 struct mutex irq_mutex;
227
228 struct nm256_stream streams[2];
229
230 struct snd_ac97 *ac97;
231 unsigned short *ac97_regs;
232
233 struct snd_pcm *pcm;
234
235 struct pci_dev *pci;
236
237 spinlock_t reg_lock;
238
239};
240
241
242
243
244
245#include "nm256_coef.c"
246
247
248
249
250
251static const struct pci_device_id snd_nm256_ids[] = {
252 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0},
253 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0},
254 {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0},
255 {0,},
256};
257
258MODULE_DEVICE_TABLE(pci, snd_nm256_ids);
259
260
261
262
263
264
265static inline u8
266snd_nm256_readb(struct nm256 *chip, int offset)
267{
268 return readb(chip->cport + offset);
269}
270
271static inline u16
272snd_nm256_readw(struct nm256 *chip, int offset)
273{
274 return readw(chip->cport + offset);
275}
276
277static inline u32
278snd_nm256_readl(struct nm256 *chip, int offset)
279{
280 return readl(chip->cport + offset);
281}
282
283static inline void
284snd_nm256_writeb(struct nm256 *chip, int offset, u8 val)
285{
286 writeb(val, chip->cport + offset);
287}
288
289static inline void
290snd_nm256_writew(struct nm256 *chip, int offset, u16 val)
291{
292 writew(val, chip->cport + offset);
293}
294
295static inline void
296snd_nm256_writel(struct nm256 *chip, int offset, u32 val)
297{
298 writel(val, chip->cport + offset);
299}
300
301static inline void
302snd_nm256_write_buffer(struct nm256 *chip, const void *src, int offset, int size)
303{
304 offset -= chip->buffer_start;
305#ifdef CONFIG_SND_DEBUG
306 if (offset < 0 || offset >= chip->buffer_size) {
307 dev_err(chip->card->dev,
308 "write_buffer invalid offset = %d size = %d\n",
309 offset, size);
310 return;
311 }
312#endif
313 memcpy_toio(chip->buffer + offset, src, size);
314}
315
316
317
318
319
320static u16
321snd_nm256_get_start_offset(int which)
322{
323 u16 offset = 0;
324 while (which-- > 0)
325 offset += coefficient_sizes[which];
326 return offset;
327}
328
329static void
330snd_nm256_load_one_coefficient(struct nm256 *chip, int stream, u32 port, int which)
331{
332 u32 coeff_buf = chip->coeff_buf[stream];
333 u16 offset = snd_nm256_get_start_offset(which);
334 u16 size = coefficient_sizes[which];
335
336 snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size);
337 snd_nm256_writel(chip, port, coeff_buf);
338
339 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
340 size--;
341 snd_nm256_writel(chip, port + 4, coeff_buf + size);
342}
343
344static void
345snd_nm256_load_coefficient(struct nm256 *chip, int stream, int number)
346{
347
348 u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ?
349 NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG);
350 u32 addr = NM_COEFF_START_OFFSET;
351
352 addr += (stream == SNDRV_PCM_STREAM_CAPTURE ?
353 NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET);
354
355 if (snd_nm256_readb(chip, poffset) & 1) {
356 dev_dbg(chip->card->dev,
357 "NM256: Engine was enabled while loading coefficients!\n");
358 return;
359 }
360
361
362 number &= 7;
363 if (stream == SNDRV_PCM_STREAM_CAPTURE)
364 number += 8;
365
366 if (! chip->use_cache) {
367 snd_nm256_load_one_coefficient(chip, stream, addr, number);
368 return;
369 }
370 if (! chip->coeffs_current) {
371 snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf,
372 NM_TOTAL_COEFF_COUNT * 4);
373 chip->coeffs_current = 1;
374 } else {
375 u32 base = chip->all_coeff_buf;
376 u32 offset = snd_nm256_get_start_offset(number);
377 u32 end_offset = offset + coefficient_sizes[number];
378 snd_nm256_writel(chip, addr, base + offset);
379 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
380 end_offset--;
381 snd_nm256_writel(chip, addr + 4, base + end_offset);
382 }
383}
384
385
386
387static const unsigned int samplerates[8] = {
388 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000,
389};
390static const struct snd_pcm_hw_constraint_list constraints_rates = {
391 .count = ARRAY_SIZE(samplerates),
392 .list = samplerates,
393 .mask = 0,
394};
395
396
397
398
399static int
400snd_nm256_fixed_rate(unsigned int rate)
401{
402 unsigned int i;
403 for (i = 0; i < ARRAY_SIZE(samplerates); i++) {
404 if (rate == samplerates[i])
405 return i;
406 }
407 snd_BUG();
408 return 0;
409}
410
411
412
413
414static void
415snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s,
416 struct snd_pcm_substream *substream)
417{
418 struct snd_pcm_runtime *runtime = substream->runtime;
419 int rate_index = snd_nm256_fixed_rate(runtime->rate);
420 unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK;
421
422 s->shift = 0;
423 if (snd_pcm_format_width(runtime->format) == 16) {
424 ratebits |= NM_RATE_BITS_16;
425 s->shift++;
426 }
427 if (runtime->channels > 1) {
428 ratebits |= NM_RATE_STEREO;
429 s->shift++;
430 }
431
432 runtime->rate = samplerates[rate_index];
433
434 switch (substream->stream) {
435 case SNDRV_PCM_STREAM_PLAYBACK:
436 snd_nm256_load_coefficient(chip, 0, rate_index);
437 snd_nm256_writeb(chip,
438 NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
439 ratebits);
440 break;
441 case SNDRV_PCM_STREAM_CAPTURE:
442 snd_nm256_load_coefficient(chip, 1, rate_index);
443 snd_nm256_writeb(chip,
444 NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
445 ratebits);
446 break;
447 }
448}
449
450
451static int snd_nm256_acquire_irq(struct nm256 *chip)
452{
453 mutex_lock(&chip->irq_mutex);
454 if (chip->irq < 0) {
455 if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED,
456 KBUILD_MODNAME, chip)) {
457 dev_err(chip->card->dev,
458 "unable to grab IRQ %d\n", chip->pci->irq);
459 mutex_unlock(&chip->irq_mutex);
460 return -EBUSY;
461 }
462 chip->irq = chip->pci->irq;
463 chip->card->sync_irq = chip->irq;
464 }
465 chip->irq_acks++;
466 mutex_unlock(&chip->irq_mutex);
467 return 0;
468}
469
470
471static void snd_nm256_release_irq(struct nm256 *chip)
472{
473 mutex_lock(&chip->irq_mutex);
474 if (chip->irq_acks > 0)
475 chip->irq_acks--;
476 if (chip->irq_acks == 0 && chip->irq >= 0) {
477 free_irq(chip->irq, chip);
478 chip->irq = -1;
479 chip->card->sync_irq = -1;
480 }
481 mutex_unlock(&chip->irq_mutex);
482}
483
484
485
486
487
488
489static void snd_nm256_pcm_mark(struct nm256 *chip, struct nm256_stream *s, int reg)
490{
491 s->cur_period++;
492 s->cur_period %= s->periods;
493 snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size);
494}
495
496#define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK)
497#define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK)
498
499static void
500snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s,
501 struct snd_pcm_substream *substream)
502{
503
504 snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
505 snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
506 snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
507 snd_nm256_playback_mark(chip, s);
508
509
510 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
511 NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
512
513 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
514}
515
516static void
517snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s,
518 struct snd_pcm_substream *substream)
519{
520
521 snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
522 snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
523 snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
524 snd_nm256_capture_mark(chip, s);
525
526
527 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
528 NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
529}
530
531
532static void
533snd_nm256_playback_stop(struct nm256 *chip)
534{
535
536 snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
537 NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
538
539 snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
540}
541
542static void
543snd_nm256_capture_stop(struct nm256 *chip)
544{
545
546 snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
547}
548
549static int
550snd_nm256_playback_trigger(struct snd_pcm_substream *substream, int cmd)
551{
552 struct nm256 *chip = snd_pcm_substream_chip(substream);
553 struct nm256_stream *s = substream->runtime->private_data;
554 int err = 0;
555
556 if (snd_BUG_ON(!s))
557 return -ENXIO;
558
559 spin_lock(&chip->reg_lock);
560 switch (cmd) {
561 case SNDRV_PCM_TRIGGER_RESUME:
562 s->suspended = 0;
563 fallthrough;
564 case SNDRV_PCM_TRIGGER_START:
565 if (! s->running) {
566 snd_nm256_playback_start(chip, s, substream);
567 s->running = 1;
568 }
569 break;
570 case SNDRV_PCM_TRIGGER_SUSPEND:
571 s->suspended = 1;
572 fallthrough;
573 case SNDRV_PCM_TRIGGER_STOP:
574 if (s->running) {
575 snd_nm256_playback_stop(chip);
576 s->running = 0;
577 }
578 break;
579 default:
580 err = -EINVAL;
581 break;
582 }
583 spin_unlock(&chip->reg_lock);
584 return err;
585}
586
587static int
588snd_nm256_capture_trigger(struct snd_pcm_substream *substream, int cmd)
589{
590 struct nm256 *chip = snd_pcm_substream_chip(substream);
591 struct nm256_stream *s = substream->runtime->private_data;
592 int err = 0;
593
594 if (snd_BUG_ON(!s))
595 return -ENXIO;
596
597 spin_lock(&chip->reg_lock);
598 switch (cmd) {
599 case SNDRV_PCM_TRIGGER_START:
600 case SNDRV_PCM_TRIGGER_RESUME:
601 if (! s->running) {
602 snd_nm256_capture_start(chip, s, substream);
603 s->running = 1;
604 }
605 break;
606 case SNDRV_PCM_TRIGGER_STOP:
607 case SNDRV_PCM_TRIGGER_SUSPEND:
608 if (s->running) {
609 snd_nm256_capture_stop(chip);
610 s->running = 0;
611 }
612 break;
613 default:
614 err = -EINVAL;
615 break;
616 }
617 spin_unlock(&chip->reg_lock);
618 return err;
619}
620
621
622
623
624
625static int snd_nm256_pcm_prepare(struct snd_pcm_substream *substream)
626{
627 struct nm256 *chip = snd_pcm_substream_chip(substream);
628 struct snd_pcm_runtime *runtime = substream->runtime;
629 struct nm256_stream *s = runtime->private_data;
630
631 if (snd_BUG_ON(!s))
632 return -ENXIO;
633 s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
634 s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
635 s->periods = substream->runtime->periods;
636 s->cur_period = 0;
637
638 spin_lock_irq(&chip->reg_lock);
639 s->running = 0;
640 snd_nm256_set_format(chip, s, substream);
641 spin_unlock_irq(&chip->reg_lock);
642
643 return 0;
644}
645
646
647
648
649
650static snd_pcm_uframes_t
651snd_nm256_playback_pointer(struct snd_pcm_substream *substream)
652{
653 struct nm256 *chip = snd_pcm_substream_chip(substream);
654 struct nm256_stream *s = substream->runtime->private_data;
655 unsigned long curp;
656
657 if (snd_BUG_ON(!s))
658 return 0;
659 curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
660 curp %= s->dma_size;
661 return bytes_to_frames(substream->runtime, curp);
662}
663
664static snd_pcm_uframes_t
665snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
666{
667 struct nm256 *chip = snd_pcm_substream_chip(substream);
668 struct nm256_stream *s = substream->runtime->private_data;
669 unsigned long curp;
670
671 if (snd_BUG_ON(!s))
672 return 0;
673 curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
674 curp %= s->dma_size;
675 return bytes_to_frames(substream->runtime, curp);
676}
677
678
679
680#ifndef __i386__
681
682
683
684static int
685snd_nm256_playback_silence(struct snd_pcm_substream *substream,
686 int channel, unsigned long pos, unsigned long count)
687{
688 struct snd_pcm_runtime *runtime = substream->runtime;
689 struct nm256_stream *s = runtime->private_data;
690
691 memset_io(s->bufptr + pos, 0, count);
692 return 0;
693}
694
695static int
696snd_nm256_playback_copy(struct snd_pcm_substream *substream,
697 int channel, unsigned long pos,
698 void __user *src, unsigned long count)
699{
700 struct snd_pcm_runtime *runtime = substream->runtime;
701 struct nm256_stream *s = runtime->private_data;
702
703 if (copy_from_user_toio(s->bufptr + pos, src, count))
704 return -EFAULT;
705 return 0;
706}
707
708static int
709snd_nm256_playback_copy_kernel(struct snd_pcm_substream *substream,
710 int channel, unsigned long pos,
711 void *src, unsigned long count)
712{
713 struct snd_pcm_runtime *runtime = substream->runtime;
714 struct nm256_stream *s = runtime->private_data;
715
716 memcpy_toio(s->bufptr + pos, src, count);
717 return 0;
718}
719
720
721
722
723static int
724snd_nm256_capture_copy(struct snd_pcm_substream *substream,
725 int channel, unsigned long pos,
726 void __user *dst, unsigned long count)
727{
728 struct snd_pcm_runtime *runtime = substream->runtime;
729 struct nm256_stream *s = runtime->private_data;
730
731 if (copy_to_user_fromio(dst, s->bufptr + pos, count))
732 return -EFAULT;
733 return 0;
734}
735
736static int
737snd_nm256_capture_copy_kernel(struct snd_pcm_substream *substream,
738 int channel, unsigned long pos,
739 void *dst, unsigned long count)
740{
741 struct snd_pcm_runtime *runtime = substream->runtime;
742 struct nm256_stream *s = runtime->private_data;
743
744 memcpy_fromio(dst, s->bufptr + pos, count);
745 return 0;
746}
747
748#endif
749
750
751
752
753
754
755
756static void
757snd_nm256_playback_update(struct nm256 *chip)
758{
759 struct nm256_stream *s;
760
761 s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK];
762 if (s->running && s->substream) {
763 spin_unlock(&chip->reg_lock);
764 snd_pcm_period_elapsed(s->substream);
765 spin_lock(&chip->reg_lock);
766 snd_nm256_playback_mark(chip, s);
767 }
768}
769
770
771static void
772snd_nm256_capture_update(struct nm256 *chip)
773{
774 struct nm256_stream *s;
775
776 s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE];
777 if (s->running && s->substream) {
778 spin_unlock(&chip->reg_lock);
779 snd_pcm_period_elapsed(s->substream);
780 spin_lock(&chip->reg_lock);
781 snd_nm256_capture_mark(chip, s);
782 }
783}
784
785
786
787
788static const struct snd_pcm_hardware snd_nm256_playback =
789{
790 .info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID |
791 SNDRV_PCM_INFO_INTERLEAVED |
792
793 SNDRV_PCM_INFO_RESUME,
794 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
795 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
796 .rate_min = 8000,
797 .rate_max = 48000,
798 .channels_min = 1,
799 .channels_max = 2,
800 .periods_min = 2,
801 .periods_max = 1024,
802 .buffer_bytes_max = 128 * 1024,
803 .period_bytes_min = 256,
804 .period_bytes_max = 128 * 1024,
805};
806
807static const struct snd_pcm_hardware snd_nm256_capture =
808{
809 .info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID |
810 SNDRV_PCM_INFO_INTERLEAVED |
811
812 SNDRV_PCM_INFO_RESUME,
813 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
814 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
815 .rate_min = 8000,
816 .rate_max = 48000,
817 .channels_min = 1,
818 .channels_max = 2,
819 .periods_min = 2,
820 .periods_max = 1024,
821 .buffer_bytes_max = 128 * 1024,
822 .period_bytes_min = 256,
823 .period_bytes_max = 128 * 1024,
824};
825
826
827
828static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream,
829 struct snd_pcm_hw_params *hw_params)
830{
831
832 substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
833 return 0;
834}
835
836
837
838
839static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s,
840 struct snd_pcm_substream *substream,
841 const struct snd_pcm_hardware *hw_ptr)
842{
843 struct snd_pcm_runtime *runtime = substream->runtime;
844
845 s->running = 0;
846 runtime->hw = *hw_ptr;
847 runtime->hw.buffer_bytes_max = s->bufsize;
848 runtime->hw.period_bytes_max = s->bufsize / 2;
849 runtime->dma_area = (void __force *) s->bufptr;
850 runtime->dma_addr = s->bufptr_addr;
851 runtime->dma_bytes = s->bufsize;
852 runtime->private_data = s;
853 s->substream = substream;
854
855 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
856 &constraints_rates);
857}
858
859static int
860snd_nm256_playback_open(struct snd_pcm_substream *substream)
861{
862 struct nm256 *chip = snd_pcm_substream_chip(substream);
863
864 if (snd_nm256_acquire_irq(chip) < 0)
865 return -EBUSY;
866 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK],
867 substream, &snd_nm256_playback);
868 return 0;
869}
870
871static int
872snd_nm256_capture_open(struct snd_pcm_substream *substream)
873{
874 struct nm256 *chip = snd_pcm_substream_chip(substream);
875
876 if (snd_nm256_acquire_irq(chip) < 0)
877 return -EBUSY;
878 snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE],
879 substream, &snd_nm256_capture);
880 return 0;
881}
882
883
884
885
886static int
887snd_nm256_playback_close(struct snd_pcm_substream *substream)
888{
889 struct nm256 *chip = snd_pcm_substream_chip(substream);
890
891 snd_nm256_release_irq(chip);
892 return 0;
893}
894
895
896static int
897snd_nm256_capture_close(struct snd_pcm_substream *substream)
898{
899 struct nm256 *chip = snd_pcm_substream_chip(substream);
900
901 snd_nm256_release_irq(chip);
902 return 0;
903}
904
905
906
907
908static const struct snd_pcm_ops snd_nm256_playback_ops = {
909 .open = snd_nm256_playback_open,
910 .close = snd_nm256_playback_close,
911 .hw_params = snd_nm256_pcm_hw_params,
912 .prepare = snd_nm256_pcm_prepare,
913 .trigger = snd_nm256_playback_trigger,
914 .pointer = snd_nm256_playback_pointer,
915#ifndef __i386__
916 .copy_user = snd_nm256_playback_copy,
917 .copy_kernel = snd_nm256_playback_copy_kernel,
918 .fill_silence = snd_nm256_playback_silence,
919#endif
920 .mmap = snd_pcm_lib_mmap_iomem,
921};
922
923static const struct snd_pcm_ops snd_nm256_capture_ops = {
924 .open = snd_nm256_capture_open,
925 .close = snd_nm256_capture_close,
926 .hw_params = snd_nm256_pcm_hw_params,
927 .prepare = snd_nm256_pcm_prepare,
928 .trigger = snd_nm256_capture_trigger,
929 .pointer = snd_nm256_capture_pointer,
930#ifndef __i386__
931 .copy_user = snd_nm256_capture_copy,
932 .copy_kernel = snd_nm256_capture_copy_kernel,
933#endif
934 .mmap = snd_pcm_lib_mmap_iomem,
935};
936
937static int
938snd_nm256_pcm(struct nm256 *chip, int device)
939{
940 struct snd_pcm *pcm;
941 int i, err;
942
943 for (i = 0; i < 2; i++) {
944 struct nm256_stream *s = &chip->streams[i];
945 s->bufptr = chip->buffer + (s->buf - chip->buffer_start);
946 s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start);
947 }
948
949 err = snd_pcm_new(chip->card, chip->card->driver, device,
950 1, 1, &pcm);
951 if (err < 0)
952 return err;
953
954 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops);
955 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops);
956
957 pcm->private_data = chip;
958 pcm->info_flags = 0;
959 chip->pcm = pcm;
960
961 return 0;
962}
963
964
965
966
967
968static void
969snd_nm256_init_chip(struct nm256 *chip)
970{
971
972 snd_nm256_writeb(chip, 0x0, 0x11);
973 snd_nm256_writew(chip, 0x214, 0);
974
975
976
977}
978
979
980static irqreturn_t
981snd_nm256_intr_check(struct nm256 *chip)
982{
983 if (chip->badintrcount++ > 1000) {
984
985
986
987
988
989
990
991
992
993
994
995
996 if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
997 snd_nm256_playback_stop(chip);
998 if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
999 snd_nm256_capture_stop(chip);
1000 chip->badintrcount = 0;
1001 return IRQ_HANDLED;
1002 }
1003 return IRQ_NONE;
1004}
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015static irqreturn_t
1016snd_nm256_interrupt(int irq, void *dev_id)
1017{
1018 struct nm256 *chip = dev_id;
1019 u16 status;
1020 u8 cbyte;
1021
1022 status = snd_nm256_readw(chip, NM_INT_REG);
1023
1024
1025 if (status == 0)
1026 return snd_nm256_intr_check(chip);
1027
1028 chip->badintrcount = 0;
1029
1030
1031
1032 spin_lock(&chip->reg_lock);
1033 if (status & NM_PLAYBACK_INT) {
1034 status &= ~NM_PLAYBACK_INT;
1035 NM_ACK_INT(chip, NM_PLAYBACK_INT);
1036 snd_nm256_playback_update(chip);
1037 }
1038
1039 if (status & NM_RECORD_INT) {
1040 status &= ~NM_RECORD_INT;
1041 NM_ACK_INT(chip, NM_RECORD_INT);
1042 snd_nm256_capture_update(chip);
1043 }
1044
1045 if (status & NM_MISC_INT_1) {
1046 status &= ~NM_MISC_INT_1;
1047 NM_ACK_INT(chip, NM_MISC_INT_1);
1048 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1049 snd_nm256_writew(chip, NM_INT_REG, 0x8000);
1050 cbyte = snd_nm256_readb(chip, 0x400);
1051 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1052 }
1053
1054 if (status & NM_MISC_INT_2) {
1055 status &= ~NM_MISC_INT_2;
1056 NM_ACK_INT(chip, NM_MISC_INT_2);
1057 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1058 cbyte = snd_nm256_readb(chip, 0x400);
1059 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1060 }
1061
1062
1063 if (status) {
1064 dev_dbg(chip->card->dev,
1065 "NM256: Fire in the hole! Unknown status 0x%x\n",
1066 status);
1067
1068 NM_ACK_INT(chip, status);
1069 }
1070
1071 spin_unlock(&chip->reg_lock);
1072 return IRQ_HANDLED;
1073}
1074
1075
1076
1077
1078
1079
1080
1081static irqreturn_t
1082snd_nm256_interrupt_zx(int irq, void *dev_id)
1083{
1084 struct nm256 *chip = dev_id;
1085 u32 status;
1086 u8 cbyte;
1087
1088 status = snd_nm256_readl(chip, NM_INT_REG);
1089
1090
1091 if (status == 0)
1092 return snd_nm256_intr_check(chip);
1093
1094 chip->badintrcount = 0;
1095
1096
1097
1098 spin_lock(&chip->reg_lock);
1099 if (status & NM2_PLAYBACK_INT) {
1100 status &= ~NM2_PLAYBACK_INT;
1101 NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
1102 snd_nm256_playback_update(chip);
1103 }
1104
1105 if (status & NM2_RECORD_INT) {
1106 status &= ~NM2_RECORD_INT;
1107 NM2_ACK_INT(chip, NM2_RECORD_INT);
1108 snd_nm256_capture_update(chip);
1109 }
1110
1111 if (status & NM2_MISC_INT_1) {
1112 status &= ~NM2_MISC_INT_1;
1113 NM2_ACK_INT(chip, NM2_MISC_INT_1);
1114 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #1\n");
1115 cbyte = snd_nm256_readb(chip, 0x400);
1116 snd_nm256_writeb(chip, 0x400, cbyte | 2);
1117 }
1118
1119 if (status & NM2_MISC_INT_2) {
1120 status &= ~NM2_MISC_INT_2;
1121 NM2_ACK_INT(chip, NM2_MISC_INT_2);
1122 dev_dbg(chip->card->dev, "NM256: Got misc interrupt #2\n");
1123 cbyte = snd_nm256_readb(chip, 0x400);
1124 snd_nm256_writeb(chip, 0x400, cbyte & ~2);
1125 }
1126
1127
1128 if (status) {
1129 dev_dbg(chip->card->dev,
1130 "NM256: Fire in the hole! Unknown status 0x%x\n",
1131 status);
1132
1133 NM2_ACK_INT(chip, status);
1134 }
1135
1136 spin_unlock(&chip->reg_lock);
1137 return IRQ_HANDLED;
1138}
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148static int
1149snd_nm256_ac97_ready(struct nm256 *chip)
1150{
1151 int timeout = 10;
1152 u32 testaddr;
1153 u16 testb;
1154
1155 testaddr = chip->mixer_status_offset;
1156 testb = chip->mixer_status_mask;
1157
1158
1159
1160
1161 while (timeout-- > 0) {
1162 if ((snd_nm256_readw(chip, testaddr) & testb) == 0)
1163 return 1;
1164 udelay(100);
1165 }
1166 return 0;
1167}
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177struct initialValues {
1178 unsigned short reg;
1179 unsigned short value;
1180};
1181
1182static const struct initialValues nm256_ac97_init_val[] =
1183{
1184 { AC97_MASTER, 0x8000 },
1185 { AC97_HEADPHONE, 0x8000 },
1186 { AC97_MASTER_MONO, 0x8000 },
1187 { AC97_PC_BEEP, 0x8000 },
1188 { AC97_PHONE, 0x8008 },
1189 { AC97_MIC, 0x8000 },
1190 { AC97_LINE, 0x8808 },
1191 { AC97_CD, 0x8808 },
1192 { AC97_VIDEO, 0x8808 },
1193 { AC97_AUX, 0x8808 },
1194 { AC97_PCM, 0x8808 },
1195 { AC97_REC_SEL, 0x0000 },
1196 { AC97_REC_GAIN, 0x0B0B },
1197 { AC97_GENERAL_PURPOSE, 0x0000 },
1198 { AC97_3D_CONTROL, 0x8000 },
1199 { AC97_VENDOR_ID1, 0x8384 },
1200 { AC97_VENDOR_ID2, 0x7609 },
1201};
1202
1203static int nm256_ac97_idx(unsigned short reg)
1204{
1205 int i;
1206 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++)
1207 if (nm256_ac97_init_val[i].reg == reg)
1208 return i;
1209 return -1;
1210}
1211
1212
1213
1214
1215
1216
1217static unsigned short
1218snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1219{
1220 struct nm256 *chip = ac97->private_data;
1221 int idx = nm256_ac97_idx(reg);
1222
1223 if (idx < 0)
1224 return 0;
1225 return chip->ac97_regs[idx];
1226}
1227
1228
1229
1230static void
1231snd_nm256_ac97_write(struct snd_ac97 *ac97,
1232 unsigned short reg, unsigned short val)
1233{
1234 struct nm256 *chip = ac97->private_data;
1235 int tries = 2;
1236 int idx = nm256_ac97_idx(reg);
1237 u32 base;
1238
1239 if (idx < 0)
1240 return;
1241
1242 base = chip->mixer_base;
1243
1244 snd_nm256_ac97_ready(chip);
1245
1246
1247 while (tries-- > 0) {
1248 snd_nm256_writew(chip, base + reg, val);
1249 msleep(1);
1250 if (snd_nm256_ac97_ready(chip)) {
1251
1252 chip->ac97_regs[idx] = val;
1253 return;
1254 }
1255 }
1256 dev_dbg(chip->card->dev, "nm256: ac97 codec not ready..\n");
1257}
1258
1259
1260static const struct snd_ac97_res_table nm256_res_table[] = {
1261 { AC97_MASTER, 0x1f1f },
1262 { AC97_HEADPHONE, 0x1f1f },
1263 { AC97_MASTER_MONO, 0x001f },
1264 { AC97_PC_BEEP, 0x001f },
1265 { AC97_PHONE, 0x001f },
1266 { AC97_MIC, 0x001f },
1267 { AC97_LINE, 0x1f1f },
1268 { AC97_CD, 0x1f1f },
1269 { AC97_VIDEO, 0x1f1f },
1270 { AC97_AUX, 0x1f1f },
1271 { AC97_PCM, 0x1f1f },
1272 { AC97_REC_GAIN, 0x0f0f },
1273 { }
1274};
1275
1276
1277static void
1278snd_nm256_ac97_reset(struct snd_ac97 *ac97)
1279{
1280 struct nm256 *chip = ac97->private_data;
1281
1282
1283 snd_nm256_writeb(chip, 0x6c0, 1);
1284 if (! chip->reset_workaround) {
1285
1286 snd_nm256_writeb(chip, 0x6cc, 0x87);
1287 }
1288 if (! chip->reset_workaround_2) {
1289
1290 snd_nm256_writeb(chip, 0x6cc, 0x80);
1291 snd_nm256_writeb(chip, 0x6cc, 0x0);
1292 }
1293 if (! chip->in_resume) {
1294 int i;
1295 for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
1296
1297
1298
1299 snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
1300 nm256_ac97_init_val[i].value);
1301 }
1302 }
1303}
1304
1305
1306static int
1307snd_nm256_mixer(struct nm256 *chip)
1308{
1309 struct snd_ac97_bus *pbus;
1310 struct snd_ac97_template ac97;
1311 int err;
1312 static const struct snd_ac97_bus_ops ops = {
1313 .reset = snd_nm256_ac97_reset,
1314 .write = snd_nm256_ac97_write,
1315 .read = snd_nm256_ac97_read,
1316 };
1317
1318 chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val),
1319 sizeof(short), GFP_KERNEL);
1320 if (! chip->ac97_regs)
1321 return -ENOMEM;
1322
1323 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1324 return err;
1325
1326 memset(&ac97, 0, sizeof(ac97));
1327 ac97.scaps = AC97_SCAP_AUDIO;
1328 ac97.private_data = chip;
1329 ac97.res_table = nm256_res_table;
1330 pbus->no_vra = 1;
1331 err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1332 if (err < 0)
1333 return err;
1334 if (! (chip->ac97->id & (0xf0000000))) {
1335
1336 sprintf(chip->card->mixername, "%s AC97", chip->card->driver);
1337 }
1338 return 0;
1339}
1340
1341
1342
1343
1344
1345
1346
1347static int
1348snd_nm256_peek_for_sig(struct nm256 *chip)
1349{
1350
1351 void __iomem *temp;
1352
1353 unsigned long pointer_found = chip->buffer_end - 0x1400;
1354 u32 sig;
1355
1356 temp = ioremap(chip->buffer_addr + chip->buffer_end - 0x400, 16);
1357 if (temp == NULL) {
1358 dev_err(chip->card->dev,
1359 "Unable to scan for card signature in video RAM\n");
1360 return -EBUSY;
1361 }
1362
1363 sig = readl(temp);
1364 if ((sig & NM_SIG_MASK) == NM_SIGNATURE) {
1365 u32 pointer = readl(temp + 4);
1366
1367
1368
1369
1370 if (pointer == 0xffffffff ||
1371 pointer < chip->buffer_size ||
1372 pointer > chip->buffer_end) {
1373 dev_err(chip->card->dev,
1374 "invalid signature found: 0x%x\n", pointer);
1375 iounmap(temp);
1376 return -ENODEV;
1377 } else {
1378 pointer_found = pointer;
1379 dev_info(chip->card->dev,
1380 "found card signature in video RAM: 0x%x\n",
1381 pointer);
1382 }
1383 }
1384
1385 iounmap(temp);
1386 chip->buffer_end = pointer_found;
1387
1388 return 0;
1389}
1390
1391#ifdef CONFIG_PM_SLEEP
1392
1393
1394
1395
1396static int nm256_suspend(struct device *dev)
1397{
1398 struct snd_card *card = dev_get_drvdata(dev);
1399 struct nm256 *chip = card->private_data;
1400
1401 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1402 snd_ac97_suspend(chip->ac97);
1403 chip->coeffs_current = 0;
1404 return 0;
1405}
1406
1407static int nm256_resume(struct device *dev)
1408{
1409 struct snd_card *card = dev_get_drvdata(dev);
1410 struct nm256 *chip = card->private_data;
1411 int i;
1412
1413
1414 chip->in_resume = 1;
1415
1416 snd_nm256_init_chip(chip);
1417
1418
1419 snd_ac97_resume(chip->ac97);
1420
1421 for (i = 0; i < 2; i++) {
1422 struct nm256_stream *s = &chip->streams[i];
1423 if (s->substream && s->suspended) {
1424 spin_lock_irq(&chip->reg_lock);
1425 snd_nm256_set_format(chip, s, s->substream);
1426 spin_unlock_irq(&chip->reg_lock);
1427 }
1428 }
1429
1430 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1431 chip->in_resume = 0;
1432 return 0;
1433}
1434
1435static SIMPLE_DEV_PM_OPS(nm256_pm, nm256_suspend, nm256_resume);
1436#define NM256_PM_OPS &nm256_pm
1437#else
1438#define NM256_PM_OPS NULL
1439#endif
1440
1441static int snd_nm256_free(struct nm256 *chip)
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 if (chip->irq >= 0)
1449 free_irq(chip->irq, chip);
1450
1451 iounmap(chip->cport);
1452 iounmap(chip->buffer);
1453 release_and_free_resource(chip->res_cport);
1454 release_and_free_resource(chip->res_buffer);
1455
1456 pci_disable_device(chip->pci);
1457 kfree(chip->ac97_regs);
1458 kfree(chip);
1459 return 0;
1460}
1461
1462static int snd_nm256_dev_free(struct snd_device *device)
1463{
1464 struct nm256 *chip = device->device_data;
1465 return snd_nm256_free(chip);
1466}
1467
1468static int
1469snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
1470 struct nm256 **chip_ret)
1471{
1472 struct nm256 *chip;
1473 int err, pval;
1474 static const struct snd_device_ops ops = {
1475 .dev_free = snd_nm256_dev_free,
1476 };
1477 u32 addr;
1478
1479 *chip_ret = NULL;
1480
1481 if ((err = pci_enable_device(pci)) < 0)
1482 return err;
1483
1484 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1485 if (chip == NULL) {
1486 pci_disable_device(pci);
1487 return -ENOMEM;
1488 }
1489
1490 chip->card = card;
1491 chip->pci = pci;
1492 chip->use_cache = use_cache;
1493 spin_lock_init(&chip->reg_lock);
1494 chip->irq = -1;
1495 mutex_init(&chip->irq_mutex);
1496
1497
1498 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024;
1499 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capture_bufsize * 1024;
1500
1501
1502
1503
1504
1505
1506
1507
1508 chip->buffer_addr = pci_resource_start(pci, 0);
1509 chip->cport_addr = pci_resource_start(pci, 1);
1510
1511
1512
1513 chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE,
1514 card->driver);
1515 if (chip->res_cport == NULL) {
1516 dev_err(card->dev, "memory region 0x%lx (size 0x%x) busy\n",
1517 chip->cport_addr, NM_PORT2_SIZE);
1518 err = -EBUSY;
1519 goto __error;
1520 }
1521 chip->cport = ioremap(chip->cport_addr, NM_PORT2_SIZE);
1522 if (chip->cport == NULL) {
1523 dev_err(card->dev, "unable to map control port %lx\n",
1524 chip->cport_addr);
1525 err = -ENOMEM;
1526 goto __error;
1527 }
1528
1529 if (!strcmp(card->driver, "NM256AV")) {
1530
1531 pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE);
1532 if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
1533 if (! force_ac97) {
1534 dev_err(card->dev,
1535 "no ac97 is found!\n");
1536 dev_err(card->dev,
1537 "force the driver to load by passing in the module parameter\n");
1538 dev_err(card->dev,
1539 " force_ac97=1\n");
1540 dev_err(card->dev,
1541 "or try sb16, opl3sa2, or cs423x drivers instead.\n");
1542 err = -ENXIO;
1543 goto __error;
1544 }
1545 }
1546 chip->buffer_end = 2560 * 1024;
1547 chip->interrupt = snd_nm256_interrupt;
1548 chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET;
1549 chip->mixer_status_mask = NM_MIXER_READY_MASK;
1550 } else {
1551
1552 if (snd_nm256_readb(chip, 0xa0b) != 0)
1553 chip->buffer_end = 6144 * 1024;
1554 else
1555 chip->buffer_end = 4096 * 1024;
1556
1557 chip->interrupt = snd_nm256_interrupt_zx;
1558 chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET;
1559 chip->mixer_status_mask = NM2_MIXER_READY_MASK;
1560 }
1561
1562 chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize +
1563 chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1564 if (chip->use_cache)
1565 chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4;
1566 else
1567 chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE;
1568
1569 if (buffer_top >= chip->buffer_size && buffer_top < chip->buffer_end)
1570 chip->buffer_end = buffer_top;
1571 else {
1572
1573 if ((err = snd_nm256_peek_for_sig(chip)) < 0)
1574 goto __error;
1575 }
1576
1577 chip->buffer_start = chip->buffer_end - chip->buffer_size;
1578 chip->buffer_addr += chip->buffer_start;
1579
1580 dev_info(card->dev, "Mapping port 1 from 0x%x - 0x%x\n",
1581 chip->buffer_start, chip->buffer_end);
1582
1583 chip->res_buffer = request_mem_region(chip->buffer_addr,
1584 chip->buffer_size,
1585 card->driver);
1586 if (chip->res_buffer == NULL) {
1587 dev_err(card->dev, "buffer 0x%lx (size 0x%x) busy\n",
1588 chip->buffer_addr, chip->buffer_size);
1589 err = -EBUSY;
1590 goto __error;
1591 }
1592 chip->buffer = ioremap(chip->buffer_addr, chip->buffer_size);
1593 if (chip->buffer == NULL) {
1594 err = -ENOMEM;
1595 dev_err(card->dev, "unable to map ring buffer at %lx\n",
1596 chip->buffer_addr);
1597 goto __error;
1598 }
1599
1600
1601 addr = chip->buffer_start;
1602 chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr;
1603 addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize;
1604 chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr;
1605 addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
1606 if (chip->use_cache) {
1607 chip->all_coeff_buf = addr;
1608 } else {
1609 chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr;
1610 addr += NM_MAX_PLAYBACK_COEF_SIZE;
1611 chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr;
1612 }
1613
1614
1615 chip->mixer_base = NM_MIXER_OFFSET;
1616
1617 chip->coeffs_current = 0;
1618
1619 snd_nm256_init_chip(chip);
1620
1621
1622
1623 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1624 goto __error;
1625
1626 *chip_ret = chip;
1627 return 0;
1628
1629__error:
1630 snd_nm256_free(chip);
1631 return err;
1632}
1633
1634
1635enum { NM_IGNORED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 };
1636
1637static const struct snd_pci_quirk nm256_quirks[] = {
1638
1639 SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_IGNORED),
1640
1641 SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND),
1642 SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND),
1643 SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2),
1644 { }
1645};
1646
1647
1648static int snd_nm256_probe(struct pci_dev *pci,
1649 const struct pci_device_id *pci_id)
1650{
1651 struct snd_card *card;
1652 struct nm256 *chip;
1653 int err;
1654 const struct snd_pci_quirk *q;
1655
1656 q = snd_pci_quirk_lookup(pci, nm256_quirks);
1657 if (q) {
1658 dev_dbg(&pci->dev, "Enabled quirk for %s.\n",
1659 snd_pci_quirk_name(q));
1660 switch (q->value) {
1661 case NM_IGNORED:
1662 dev_info(&pci->dev,
1663 "The device is on the denylist. Loading stopped\n");
1664 return -ENODEV;
1665 case NM_RESET_WORKAROUND_2:
1666 reset_workaround_2 = 1;
1667 fallthrough;
1668 case NM_RESET_WORKAROUND:
1669 reset_workaround = 1;
1670 break;
1671 }
1672 }
1673
1674 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
1675 if (err < 0)
1676 return err;
1677
1678 switch (pci->device) {
1679 case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
1680 strcpy(card->driver, "NM256AV");
1681 break;
1682 case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO:
1683 strcpy(card->driver, "NM256ZX");
1684 break;
1685 case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO:
1686 strcpy(card->driver, "NM256XL+");
1687 break;
1688 default:
1689 dev_err(&pci->dev, "invalid device id 0x%x\n", pci->device);
1690 snd_card_free(card);
1691 return -EINVAL;
1692 }
1693
1694 if (vaio_hack)
1695 buffer_top = 0x25a800;
1696
1697 if (playback_bufsize < 4)
1698 playback_bufsize = 4;
1699 if (playback_bufsize > 128)
1700 playback_bufsize = 128;
1701 if (capture_bufsize < 4)
1702 capture_bufsize = 4;
1703 if (capture_bufsize > 128)
1704 capture_bufsize = 128;
1705 if ((err = snd_nm256_create(card, pci, &chip)) < 0) {
1706 snd_card_free(card);
1707 return err;
1708 }
1709 card->private_data = chip;
1710
1711 if (reset_workaround) {
1712 dev_dbg(&pci->dev, "reset_workaround activated\n");
1713 chip->reset_workaround = 1;
1714 }
1715
1716 if (reset_workaround_2) {
1717 dev_dbg(&pci->dev, "reset_workaround_2 activated\n");
1718 chip->reset_workaround_2 = 1;
1719 }
1720
1721 if ((err = snd_nm256_pcm(chip, 0)) < 0 ||
1722 (err = snd_nm256_mixer(chip)) < 0) {
1723 snd_card_free(card);
1724 return err;
1725 }
1726
1727 sprintf(card->shortname, "NeoMagic %s", card->driver);
1728 sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d",
1729 card->shortname,
1730 chip->buffer_addr, chip->cport_addr, chip->irq);
1731
1732 if ((err = snd_card_register(card)) < 0) {
1733 snd_card_free(card);
1734 return err;
1735 }
1736
1737 pci_set_drvdata(pci, card);
1738 return 0;
1739}
1740
1741static void snd_nm256_remove(struct pci_dev *pci)
1742{
1743 snd_card_free(pci_get_drvdata(pci));
1744}
1745
1746
1747static struct pci_driver nm256_driver = {
1748 .name = KBUILD_MODNAME,
1749 .id_table = snd_nm256_ids,
1750 .probe = snd_nm256_probe,
1751 .remove = snd_nm256_remove,
1752 .driver = {
1753 .pm = NM256_PM_OPS,
1754 },
1755};
1756
1757module_pci_driver(nm256_driver);
1758