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12#include <linux/delay.h>
13#include <linux/init.h>
14#include <linux/slab.h>
15#include <linux/module.h>
16#include <sound/core.h>
17#include <sound/control.h>
18#include <sound/info.h>
19#include <sound/sb16_csp.h>
20#include <sound/initval.h>
21
22MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
23MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
24MODULE_LICENSE("GPL");
25MODULE_FIRMWARE("sb16/mulaw_main.csp");
26MODULE_FIRMWARE("sb16/alaw_main.csp");
27MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
28MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
29MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
30
31#ifdef SNDRV_LITTLE_ENDIAN
32#define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
33#else
34#define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
35#endif
36
37#define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F')
38#define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ')
39#define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T')
40#define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c')
41#define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e')
42#define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't')
43#define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n')
44
45
46
47
48struct riff_header {
49 __le32 name;
50 __le32 len;
51};
52
53struct desc_header {
54 struct riff_header info;
55 __le16 func_nr;
56 __le16 VOC_type;
57 __le16 flags_play_rec;
58 __le16 flags_16bit_8bit;
59 __le16 flags_stereo_mono;
60 __le16 flags_rates;
61};
62
63
64
65
66static void snd_sb_csp_free(struct snd_hwdep *hw);
67static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
68static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
69static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
70
71static int csp_detect(struct snd_sb *chip, int *version);
72static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
73static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
74static int read_register(struct snd_sb *chip, unsigned char reg);
75static int set_mode_register(struct snd_sb *chip, unsigned char mode);
76static int get_version(struct snd_sb *chip);
77
78static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
79 struct snd_sb_csp_microcode __user * code);
80static int snd_sb_csp_unload(struct snd_sb_csp * p);
81static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
82static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);
83static int snd_sb_csp_check_version(struct snd_sb_csp * p);
84
85static int snd_sb_csp_use(struct snd_sb_csp * p);
86static int snd_sb_csp_unuse(struct snd_sb_csp * p);
87static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
88static int snd_sb_csp_stop(struct snd_sb_csp * p);
89static int snd_sb_csp_pause(struct snd_sb_csp * p);
90static int snd_sb_csp_restart(struct snd_sb_csp * p);
91
92static int snd_sb_qsound_build(struct snd_sb_csp * p);
93static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
94static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
95
96static int init_proc_entry(struct snd_sb_csp * p, int device);
97static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
98
99
100
101
102int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
103{
104 struct snd_sb_csp *p;
105 int version;
106 int err;
107 struct snd_hwdep *hw;
108
109 if (rhwdep)
110 *rhwdep = NULL;
111
112 if (csp_detect(chip, &version))
113 return -ENODEV;
114
115 if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
116 return err;
117
118 if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
119 snd_device_free(chip->card, hw);
120 return -ENOMEM;
121 }
122 p->chip = chip;
123 p->version = version;
124
125
126 p->ops.csp_use = snd_sb_csp_use;
127 p->ops.csp_unuse = snd_sb_csp_unuse;
128 p->ops.csp_autoload = snd_sb_csp_autoload;
129 p->ops.csp_start = snd_sb_csp_start;
130 p->ops.csp_stop = snd_sb_csp_stop;
131 p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
132
133 mutex_init(&p->access_mutex);
134 sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
135 hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
136 hw->private_data = p;
137 hw->private_free = snd_sb_csp_free;
138
139
140 hw->ops.open = snd_sb_csp_open;
141 hw->ops.ioctl = snd_sb_csp_ioctl;
142 hw->ops.release = snd_sb_csp_release;
143
144
145 init_proc_entry(p, device);
146 if (rhwdep)
147 *rhwdep = hw;
148 return 0;
149}
150
151
152
153
154static void snd_sb_csp_free(struct snd_hwdep *hwdep)
155{
156 int i;
157 struct snd_sb_csp *p = hwdep->private_data;
158 if (p) {
159 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
160 snd_sb_csp_stop(p);
161 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
162 release_firmware(p->csp_programs[i]);
163 kfree(p);
164 }
165}
166
167
168
169
170
171
172static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
173{
174 struct snd_sb_csp *p = hw->private_data;
175 return (snd_sb_csp_use(p));
176}
177
178
179
180
181static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
182{
183 struct snd_sb_csp *p = hw->private_data;
184 struct snd_sb_csp_info info;
185 struct snd_sb_csp_start start_info;
186 int err;
187
188 if (snd_BUG_ON(!p))
189 return -EINVAL;
190
191 if (snd_sb_csp_check_version(p))
192 return -ENODEV;
193
194 switch (cmd) {
195
196 case SNDRV_SB_CSP_IOCTL_INFO:
197 memset(&info, 0, sizeof(info));
198 *info.codec_name = *p->codec_name;
199 info.func_nr = p->func_nr;
200 info.acc_format = p->acc_format;
201 info.acc_channels = p->acc_channels;
202 info.acc_width = p->acc_width;
203 info.acc_rates = p->acc_rates;
204 info.csp_mode = p->mode;
205 info.run_channels = p->run_channels;
206 info.run_width = p->run_width;
207 info.version = p->version;
208 info.state = p->running;
209 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
210 err = -EFAULT;
211 else
212 err = 0;
213 break;
214
215
216 case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
217 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
218 -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
219 break;
220 case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
221 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
222 -EBUSY : snd_sb_csp_unload(p));
223 break;
224
225
226 case SNDRV_SB_CSP_IOCTL_START:
227 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
228 err = -EFAULT;
229 else
230 err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
231 break;
232 case SNDRV_SB_CSP_IOCTL_STOP:
233 err = snd_sb_csp_stop(p);
234 break;
235 case SNDRV_SB_CSP_IOCTL_PAUSE:
236 err = snd_sb_csp_pause(p);
237 break;
238 case SNDRV_SB_CSP_IOCTL_RESTART:
239 err = snd_sb_csp_restart(p);
240 break;
241 default:
242 err = -ENOTTY;
243 break;
244 }
245
246 return err;
247}
248
249
250
251
252static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
253{
254 struct snd_sb_csp *p = hw->private_data;
255 return (snd_sb_csp_unuse(p));
256}
257
258
259
260
261
262
263static int snd_sb_csp_use(struct snd_sb_csp * p)
264{
265 mutex_lock(&p->access_mutex);
266 if (p->used) {
267 mutex_unlock(&p->access_mutex);
268 return -EAGAIN;
269 }
270 p->used++;
271 mutex_unlock(&p->access_mutex);
272
273 return 0;
274
275}
276
277
278
279
280static int snd_sb_csp_unuse(struct snd_sb_csp * p)
281{
282 mutex_lock(&p->access_mutex);
283 p->used--;
284 mutex_unlock(&p->access_mutex);
285
286 return 0;
287}
288
289
290
291
292
293static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
294 struct snd_sb_csp_microcode __user * mcode)
295{
296 struct snd_sb_csp_mc_header info;
297
298 unsigned char __user *data_ptr;
299 unsigned char __user *data_end;
300 unsigned short func_nr = 0;
301
302 struct riff_header file_h, item_h, code_h;
303 __le32 item_type;
304 struct desc_header funcdesc_h;
305
306 unsigned long flags;
307 int err;
308
309 if (copy_from_user(&info, mcode, sizeof(info)))
310 return -EFAULT;
311 data_ptr = mcode->data;
312
313 if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
314 return -EFAULT;
315 if ((le32_to_cpu(file_h.name) != RIFF_HEADER) ||
316 (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
317 snd_printd("%s: Invalid RIFF header\n", __func__);
318 return -EINVAL;
319 }
320 data_ptr += sizeof(file_h);
321 data_end = data_ptr + le32_to_cpu(file_h.len);
322
323 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
324 return -EFAULT;
325 if (le32_to_cpu(item_type) != CSP__HEADER) {
326 snd_printd("%s: Invalid RIFF file type\n", __func__);
327 return -EINVAL;
328 }
329 data_ptr += sizeof (item_type);
330
331 for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
332 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
333 return -EFAULT;
334 data_ptr += sizeof(item_h);
335 if (le32_to_cpu(item_h.name) != LIST_HEADER)
336 continue;
337
338 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
339 return -EFAULT;
340 switch (le32_to_cpu(item_type)) {
341 case FUNC_HEADER:
342 if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
343 return -EFAULT;
344 func_nr = le16_to_cpu(funcdesc_h.func_nr);
345 break;
346 case CODE_HEADER:
347 if (func_nr != info.func_req)
348 break;
349 data_ptr += sizeof(item_type);
350
351
352 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
353 snd_sb_qsound_destroy(p);
354 }
355
356 p->running = 0;
357 p->mode = 0;
358
359
360 for (;;) {
361 if (data_ptr >= data_end)
362 return -EINVAL;
363 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
364 return -EFAULT;
365
366
367 if (le32_to_cpu(code_h.name) != INIT_HEADER)
368 break;
369 data_ptr += sizeof(code_h);
370 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
371 SNDRV_SB_CSP_LOAD_INITBLOCK);
372 if (err)
373 return err;
374 data_ptr += le32_to_cpu(code_h.len);
375 }
376
377 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
378 return -EFAULT;
379
380 if (le32_to_cpu(code_h.name) != MAIN_HEADER) {
381 snd_printd("%s: Missing 'main' microcode\n", __func__);
382 return -EINVAL;
383 }
384 data_ptr += sizeof(code_h);
385 err = snd_sb_csp_load_user(p, data_ptr,
386 le32_to_cpu(code_h.len), 0);
387 if (err)
388 return err;
389
390
391 strscpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
392 p->func_nr = func_nr;
393 p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
394 switch (le16_to_cpu(funcdesc_h.VOC_type)) {
395 case 0x0001:
396 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
397 if (snd_sb_qsound_build(p) == 0)
398
399 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
400 }
401 p->acc_format = 0;
402 break;
403 case 0x0006:
404 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
405 break;
406 case 0x0007:
407 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
408 break;
409 case 0x0011:
410 case 0x0200:
411 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
412 break;
413 case 201:
414
415 p->acc_format = 0;
416 break;
417 case 0x0202:
418 case 0x0203:
419 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
420 break;
421 default:
422 p->acc_format = p->acc_width = p->acc_rates = 0;
423 p->mode = 0;
424 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
425 __func__,
426 le16_to_cpu(funcdesc_h.VOC_type));
427 return -EINVAL;
428 }
429 p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
430 p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
431 p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
432
433
434 spin_lock_irqsave(&p->chip->reg_lock, flags);
435 set_mode_register(p->chip, 0xfc);
436 set_mode_register(p->chip, 0x00);
437 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
438
439
440 p->running = SNDRV_SB_CSP_ST_LOADED;
441 return 0;
442 }
443 }
444 snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
445 return -EINVAL;
446}
447
448
449
450
451static int snd_sb_csp_unload(struct snd_sb_csp * p)
452{
453 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
454 return -EBUSY;
455 if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
456 return -ENXIO;
457
458
459 p->acc_format = 0;
460 p->acc_channels = p->acc_width = p->acc_rates = 0;
461
462 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
463 snd_sb_qsound_destroy(p);
464 }
465
466 p->running = 0;
467 p->mode = 0;
468 return 0;
469}
470
471
472
473
474static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
475{
476 int i;
477 for (i = 0; i < size; i++) {
478 if (!snd_sbdsp_command(chip, seq[i]))
479 return -EIO;
480 }
481 return 0;
482}
483
484
485
486
487static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
488{
489 unsigned char dsp_cmd[3];
490
491 dsp_cmd[0] = 0x05;
492 dsp_cmd[1] = val;
493 dsp_cmd[2] = par;
494 command_seq(chip, dsp_cmd, 3);
495 snd_sbdsp_command(chip, 0x03);
496 if (snd_sbdsp_get_byte(chip) != par)
497 return -EIO;
498 return 0;
499}
500
501
502
503
504static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
505{
506 unsigned char dsp_cmd[3];
507
508 dsp_cmd[0] = 0x0e;
509 dsp_cmd[1] = reg;
510 dsp_cmd[2] = val;
511 return command_seq(chip, dsp_cmd, 3);
512}
513
514
515
516
517
518static int read_register(struct snd_sb *chip, unsigned char reg)
519{
520 unsigned char dsp_cmd[2];
521
522 dsp_cmd[0] = 0x0f;
523 dsp_cmd[1] = reg;
524 command_seq(chip, dsp_cmd, 2);
525 return snd_sbdsp_get_byte(chip);
526}
527
528
529
530
531static int set_mode_register(struct snd_sb *chip, unsigned char mode)
532{
533 unsigned char dsp_cmd[2];
534
535 dsp_cmd[0] = 0x04;
536 dsp_cmd[1] = mode;
537 return command_seq(chip, dsp_cmd, 2);
538}
539
540
541
542
543
544static int csp_detect(struct snd_sb *chip, int *version)
545{
546 unsigned char csp_test1, csp_test2;
547 unsigned long flags;
548 int result = -ENODEV;
549
550 spin_lock_irqsave(&chip->reg_lock, flags);
551
552 set_codec_parameter(chip, 0x00, 0x00);
553 set_mode_register(chip, 0xfc);
554
555 csp_test1 = read_register(chip, 0x83);
556 set_register(chip, 0x83, ~csp_test1);
557 csp_test2 = read_register(chip, 0x83);
558 if (csp_test2 != (csp_test1 ^ 0xff))
559 goto __fail;
560
561 set_register(chip, 0x83, csp_test1);
562 csp_test2 = read_register(chip, 0x83);
563 if (csp_test2 != csp_test1)
564 goto __fail;
565
566 set_mode_register(chip, 0x00);
567
568 *version = get_version(chip);
569 snd_sbdsp_reset(chip);
570 if (*version >= 0x10 && *version <= 0x1f)
571 result = 0;
572
573 __fail:
574 spin_unlock_irqrestore(&chip->reg_lock, flags);
575 return result;
576}
577
578
579
580
581static int get_version(struct snd_sb *chip)
582{
583 unsigned char dsp_cmd[2];
584
585 dsp_cmd[0] = 0x08;
586 dsp_cmd[1] = 0x03;
587 command_seq(chip, dsp_cmd, 2);
588
589 return (snd_sbdsp_get_byte(chip));
590}
591
592
593
594
595static int snd_sb_csp_check_version(struct snd_sb_csp * p)
596{
597 if (p->version < 0x10 || p->version > 0x1f) {
598 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
599 return 1;
600 }
601 return 0;
602}
603
604
605
606
607static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
608{
609 int status, i;
610 int err;
611 int result = -EIO;
612 unsigned long flags;
613
614 spin_lock_irqsave(&p->chip->reg_lock, flags);
615 snd_sbdsp_command(p->chip, 0x01);
616 if (snd_sbdsp_get_byte(p->chip)) {
617 snd_printd("%s: Download command failed\n", __func__);
618 goto __fail;
619 }
620
621 snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
622
623 snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
624
625
626 while (size--) {
627 if (!snd_sbdsp_command(p->chip, *buf++))
628 goto __fail;
629 }
630 if (snd_sbdsp_get_byte(p->chip))
631 goto __fail;
632
633 if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
634 i = 0;
635
636 while (1) {
637 snd_sbdsp_command(p->chip, 0x03);
638 status = snd_sbdsp_get_byte(p->chip);
639 if (status == 0x55 || ++i >= 10)
640 break;
641 udelay (10);
642 }
643 if (status != 0x55) {
644 snd_printd("%s: Microcode initialization failed\n", __func__);
645 goto __fail;
646 }
647 } else {
648
649
650
651
652
653 spin_lock(&p->chip->mixer_lock);
654 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
655 spin_unlock(&p->chip->mixer_lock);
656 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
657 err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
658 set_codec_parameter(p->chip, 0xff, 0x00));
659 snd_sbdsp_reset(p->chip);
660 if (err)
661 goto __fail;
662 set_mode_register(p->chip, 0xc0);
663 set_mode_register(p->chip, 0x70);
664 }
665 }
666 result = 0;
667
668 __fail:
669 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
670 return result;
671}
672
673static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
674{
675 int err;
676 unsigned char *kbuf;
677
678 kbuf = memdup_user(buf, size);
679 if (IS_ERR(kbuf))
680 return PTR_ERR(kbuf);
681
682 err = snd_sb_csp_load(p, kbuf, size, load_flags);
683
684 kfree(kbuf);
685 return err;
686}
687
688static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
689{
690 static const char *const names[] = {
691 "sb16/mulaw_main.csp",
692 "sb16/alaw_main.csp",
693 "sb16/ima_adpcm_init.csp",
694 "sb16/ima_adpcm_playback.csp",
695 "sb16/ima_adpcm_capture.csp",
696 };
697 const struct firmware *program;
698
699 BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
700 program = p->csp_programs[index];
701 if (!program) {
702 int err = request_firmware(&program, names[index],
703 p->chip->card->dev);
704 if (err < 0)
705 return err;
706 p->csp_programs[index] = program;
707 }
708 return snd_sb_csp_load(p, program->data, program->size, flags);
709}
710
711
712
713
714
715static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode)
716{
717 unsigned long flags;
718 int err = 0;
719
720
721 if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
722 return -EBUSY;
723
724
725 if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
726 p->running = SNDRV_SB_CSP_ST_AUTO;
727 } else {
728 switch (pcm_sfmt) {
729 case SNDRV_PCM_FORMAT_MU_LAW:
730 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
731 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
732 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
733 break;
734 case SNDRV_PCM_FORMAT_A_LAW:
735 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
736 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
737 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
738 break;
739 case SNDRV_PCM_FORMAT_IMA_ADPCM:
740 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
741 SNDRV_SB_CSP_LOAD_INITBLOCK);
742 if (err)
743 break;
744 if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
745 err = snd_sb_csp_firmware_load
746 (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
747 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
748 } else {
749 err = snd_sb_csp_firmware_load
750 (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
751 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
752 }
753 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
754 break;
755 default:
756
757 if (p->running & SNDRV_SB_CSP_ST_AUTO) {
758 spin_lock_irqsave(&p->chip->reg_lock, flags);
759 set_mode_register(p->chip, 0xfc);
760 set_mode_register(p->chip, 0x00);
761 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
762 p->running = 0;
763 }
764 return -EINVAL;
765 }
766 if (err) {
767 p->acc_format = 0;
768 p->acc_channels = p->acc_width = p->acc_rates = 0;
769
770 p->running = 0;
771 p->mode = 0;
772 return (err);
773 } else {
774 p->running = SNDRV_SB_CSP_ST_AUTO;
775 p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;
776 p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
777 p->acc_rates = SNDRV_SB_CSP_RATE_ALL;
778 }
779
780 }
781 return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
782}
783
784
785
786
787static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
788{
789 unsigned char s_type;
790 unsigned char mixL, mixR;
791 int result = -EIO;
792 unsigned long flags;
793
794 if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
795 snd_printd("%s: Microcode not loaded\n", __func__);
796 return -ENXIO;
797 }
798 if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
799 snd_printd("%s: CSP already running\n", __func__);
800 return -EBUSY;
801 }
802 if (!(sample_width & p->acc_width)) {
803 snd_printd("%s: Unsupported PCM sample width\n", __func__);
804 return -EINVAL;
805 }
806 if (!(channels & p->acc_channels)) {
807 snd_printd("%s: Invalid number of channels\n", __func__);
808 return -EINVAL;
809 }
810
811
812 spin_lock_irqsave(&p->chip->mixer_lock, flags);
813 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
814 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
815 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
816 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
817
818 spin_lock(&p->chip->reg_lock);
819 set_mode_register(p->chip, 0xc0);
820 set_mode_register(p->chip, 0x70);
821
822 s_type = 0x00;
823 if (channels == SNDRV_SB_CSP_MONO)
824 s_type = 0x11;
825 if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
826 s_type |= 0x22;
827
828 if (set_codec_parameter(p->chip, 0x81, s_type)) {
829 snd_printd("%s: Set sample type command failed\n", __func__);
830 goto __fail;
831 }
832 if (set_codec_parameter(p->chip, 0x80, 0x00)) {
833 snd_printd("%s: Codec start command failed\n", __func__);
834 goto __fail;
835 }
836 p->run_width = sample_width;
837 p->run_channels = channels;
838
839 p->running |= SNDRV_SB_CSP_ST_RUNNING;
840
841 if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
842 set_codec_parameter(p->chip, 0xe0, 0x01);
843
844 set_codec_parameter(p->chip, 0x00, 0xff);
845 set_codec_parameter(p->chip, 0x01, 0xff);
846 p->running |= SNDRV_SB_CSP_ST_QSOUND;
847
848 snd_sb_csp_qsound_transfer(p);
849 }
850 result = 0;
851
852 __fail:
853 spin_unlock(&p->chip->reg_lock);
854
855
856 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
857 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
858 spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
859
860 return result;
861}
862
863
864
865
866static int snd_sb_csp_stop(struct snd_sb_csp * p)
867{
868 int result;
869 unsigned char mixL, mixR;
870 unsigned long flags;
871
872 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
873 return 0;
874
875
876 spin_lock_irqsave(&p->chip->mixer_lock, flags);
877 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
878 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
879 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
880 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
881
882 spin_lock(&p->chip->reg_lock);
883 if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
884 set_codec_parameter(p->chip, 0xe0, 0x01);
885
886 set_codec_parameter(p->chip, 0x00, 0x00);
887 set_codec_parameter(p->chip, 0x01, 0x00);
888
889 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
890 }
891 result = set_mode_register(p->chip, 0xc0);
892 spin_unlock(&p->chip->reg_lock);
893
894
895 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
896 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
897 spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
898
899 if (!(result))
900 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
901 return result;
902}
903
904
905
906
907static int snd_sb_csp_pause(struct snd_sb_csp * p)
908{
909 int result;
910 unsigned long flags;
911
912 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
913 return -EBUSY;
914
915 spin_lock_irqsave(&p->chip->reg_lock, flags);
916 result = set_codec_parameter(p->chip, 0x80, 0xff);
917 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
918 if (!(result))
919 p->running |= SNDRV_SB_CSP_ST_PAUSED;
920
921 return result;
922}
923
924
925
926
927static int snd_sb_csp_restart(struct snd_sb_csp * p)
928{
929 int result;
930 unsigned long flags;
931
932 if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
933 return -EBUSY;
934
935 spin_lock_irqsave(&p->chip->reg_lock, flags);
936 result = set_codec_parameter(p->chip, 0x80, 0x00);
937 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
938 if (!(result))
939 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
940
941 return result;
942}
943
944
945
946
947
948
949
950#define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info
951
952static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
953{
954 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
955
956 ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
957 return 0;
958}
959
960static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
961{
962 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
963 unsigned long flags;
964 int change;
965 unsigned char nval;
966
967 nval = ucontrol->value.integer.value[0] & 0x01;
968 spin_lock_irqsave(&p->q_lock, flags);
969 change = p->q_enabled != nval;
970 p->q_enabled = nval;
971 spin_unlock_irqrestore(&p->q_lock, flags);
972 return change;
973}
974
975static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
976{
977 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
978 uinfo->count = 2;
979 uinfo->value.integer.min = 0;
980 uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
981 return 0;
982}
983
984static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
985{
986 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
987 unsigned long flags;
988
989 spin_lock_irqsave(&p->q_lock, flags);
990 ucontrol->value.integer.value[0] = p->qpos_left;
991 ucontrol->value.integer.value[1] = p->qpos_right;
992 spin_unlock_irqrestore(&p->q_lock, flags);
993 return 0;
994}
995
996static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
997{
998 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
999 unsigned long flags;
1000 int change;
1001 unsigned char nval1, nval2;
1002
1003 nval1 = ucontrol->value.integer.value[0];
1004 if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1005 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1006 nval2 = ucontrol->value.integer.value[1];
1007 if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1008 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1009 spin_lock_irqsave(&p->q_lock, flags);
1010 change = p->qpos_left != nval1 || p->qpos_right != nval2;
1011 p->qpos_left = nval1;
1012 p->qpos_right = nval2;
1013 p->qpos_changed = change;
1014 spin_unlock_irqrestore(&p->q_lock, flags);
1015 return change;
1016}
1017
1018static const struct snd_kcontrol_new snd_sb_qsound_switch = {
1019 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1020 .name = "3D Control - Switch",
1021 .info = snd_sb_qsound_switch_info,
1022 .get = snd_sb_qsound_switch_get,
1023 .put = snd_sb_qsound_switch_put
1024};
1025
1026static const struct snd_kcontrol_new snd_sb_qsound_space = {
1027 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1028 .name = "3D Control - Space",
1029 .info = snd_sb_qsound_space_info,
1030 .get = snd_sb_qsound_space_get,
1031 .put = snd_sb_qsound_space_put
1032};
1033
1034static int snd_sb_qsound_build(struct snd_sb_csp * p)
1035{
1036 struct snd_card *card;
1037 int err;
1038
1039 if (snd_BUG_ON(!p))
1040 return -EINVAL;
1041
1042 card = p->chip->card;
1043 p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1044 p->qpos_changed = 0;
1045
1046 spin_lock_init(&p->q_lock);
1047
1048 if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1049 goto __error;
1050 if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1051 goto __error;
1052
1053 return 0;
1054
1055 __error:
1056 snd_sb_qsound_destroy(p);
1057 return err;
1058}
1059
1060static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1061{
1062 struct snd_card *card;
1063 unsigned long flags;
1064
1065 if (snd_BUG_ON(!p))
1066 return;
1067
1068 card = p->chip->card;
1069
1070 down_write(&card->controls_rwsem);
1071 if (p->qsound_switch)
1072 snd_ctl_remove(card, p->qsound_switch);
1073 if (p->qsound_space)
1074 snd_ctl_remove(card, p->qsound_space);
1075 up_write(&card->controls_rwsem);
1076
1077
1078 spin_lock_irqsave (&p->q_lock, flags);
1079 p->qpos_changed = 0;
1080 spin_unlock_irqrestore (&p->q_lock, flags);
1081}
1082
1083
1084
1085
1086
1087static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1088{
1089 int err = -ENXIO;
1090
1091 spin_lock(&p->q_lock);
1092 if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1093 set_codec_parameter(p->chip, 0xe0, 0x01);
1094
1095 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1096 set_codec_parameter(p->chip, 0x02, 0x00);
1097
1098 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1099 set_codec_parameter(p->chip, 0x03, 0x00);
1100 err = 0;
1101 }
1102 p->qpos_changed = 0;
1103 spin_unlock(&p->q_lock);
1104 return err;
1105}
1106
1107
1108
1109
1110
1111
1112static int init_proc_entry(struct snd_sb_csp * p, int device)
1113{
1114 char name[16];
1115
1116 sprintf(name, "cspD%d", device);
1117 snd_card_ro_proc_new(p->chip->card, name, p, info_read);
1118 return 0;
1119}
1120
1121static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1122{
1123 struct snd_sb_csp *p = entry->private_data;
1124
1125 snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1126 snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1127 ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1128 ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1129 ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1130 if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1131 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1132 snd_iprintf(buffer, "Sample rates: ");
1133 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1134 snd_iprintf(buffer, "All\n");
1135 } else {
1136 snd_iprintf(buffer, "%s%s%s%s\n",
1137 ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1138 ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1139 ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1140 ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1141 }
1142 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1143 snd_iprintf(buffer, "QSound decoder %sabled\n",
1144 p->q_enabled ? "en" : "dis");
1145 } else {
1146 snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1147 p->acc_format,
1148 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1149 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1150 ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1151 ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1152 ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1153 ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1154 }
1155 }
1156 if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1157 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1158 }
1159 if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1160 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1161 ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1162 ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1163 }
1164 if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1165 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1166 p->qpos_left, p->qpos_right);
1167 }
1168}
1169
1170
1171
1172EXPORT_SYMBOL(snd_sb_csp_new);
1173
