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11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/delay.h>
14#include <linux/init.h>
15#include <linux/interrupt.h>
16#include <linux/moduleparam.h>
17#include <linux/irq.h>
18#include <linux/io.h>
19#include <linux/of.h>
20#include <linux/of_device.h>
21
22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/info.h>
25#include <sound/control.h>
26#include <sound/timer.h>
27#include <sound/initval.h>
28#include <sound/pcm_params.h>
29
30#ifdef CONFIG_SBUS
31#define SBUS_SUPPORT
32#endif
33
34#if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
35#define EBUS_SUPPORT
36#include <linux/pci.h>
37#include <asm/ebus_dma.h>
38#endif
39
40static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
41static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
42
43static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
44
45module_param_array(index, int, NULL, 0444);
46MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
47module_param_array(id, charp, NULL, 0444);
48MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
49module_param_array(enable, bool, NULL, 0444);
50MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
51MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller");
52MODULE_DESCRIPTION("Sun CS4231");
53MODULE_LICENSE("GPL");
54MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
55
56#ifdef SBUS_SUPPORT
57struct sbus_dma_info {
58 spinlock_t lock;
59 int dir;
60 void __iomem *regs;
61};
62#endif
63
64struct snd_cs4231;
65struct cs4231_dma_control {
66 void (*prepare)(struct cs4231_dma_control *dma_cont,
67 int dir);
68 void (*enable)(struct cs4231_dma_control *dma_cont, int on);
69 int (*request)(struct cs4231_dma_control *dma_cont,
70 dma_addr_t bus_addr, size_t len);
71 unsigned int (*address)(struct cs4231_dma_control *dma_cont);
72#ifdef EBUS_SUPPORT
73 struct ebus_dma_info ebus_info;
74#endif
75#ifdef SBUS_SUPPORT
76 struct sbus_dma_info sbus_info;
77#endif
78};
79
80struct snd_cs4231 {
81 spinlock_t lock;
82 void __iomem *port;
83
84 struct cs4231_dma_control p_dma;
85 struct cs4231_dma_control c_dma;
86
87 u32 flags;
88#define CS4231_FLAG_EBUS 0x00000001
89#define CS4231_FLAG_PLAYBACK 0x00000002
90#define CS4231_FLAG_CAPTURE 0x00000004
91
92 struct snd_card *card;
93 struct snd_pcm *pcm;
94 struct snd_pcm_substream *playback_substream;
95 unsigned int p_periods_sent;
96 struct snd_pcm_substream *capture_substream;
97 unsigned int c_periods_sent;
98 struct snd_timer *timer;
99
100 unsigned short mode;
101#define CS4231_MODE_NONE 0x0000
102#define CS4231_MODE_PLAY 0x0001
103#define CS4231_MODE_RECORD 0x0002
104#define CS4231_MODE_TIMER 0x0004
105#define CS4231_MODE_OPEN (CS4231_MODE_PLAY | CS4231_MODE_RECORD | \
106 CS4231_MODE_TIMER)
107
108 unsigned char image[32];
109 int mce_bit;
110 int calibrate_mute;
111 struct mutex mce_mutex;
112 struct mutex open_mutex;
113
114 struct platform_device *op;
115 unsigned int irq[2];
116 unsigned int regs_size;
117 struct snd_cs4231 *next;
118};
119
120
121
122
123
124
125#include <sound/cs4231-regs.h>
126
127
128#define CS4231U(chip, x) ((chip)->port + ((c_d_c_CS4231##x) << 2))
129
130
131
132#define APCCSR 0x10UL
133#define APCCVA 0x20UL
134#define APCCC 0x24UL
135#define APCCNVA 0x28UL
136#define APCCNC 0x2cUL
137#define APCPVA 0x30UL
138#define APCPC 0x34UL
139#define APCPNVA 0x38UL
140#define APCPNC 0x3cUL
141
142
143
144#define APCVA 0x0UL
145#define APCC 0x4UL
146#define APCNVA 0x8UL
147#define APCNC 0xcUL
148#define APC_PLAY 0x30UL
149#define APC_RECORD 0x20UL
150
151
152
153#define APC_INT_PENDING 0x800000
154#define APC_PLAY_INT 0x400000
155#define APC_CAPT_INT 0x200000
156#define APC_GENL_INT 0x100000
157#define APC_XINT_ENA 0x80000
158#define APC_XINT_PLAY 0x40000
159#define APC_XINT_CAPT 0x20000
160#define APC_XINT_GENL 0x10000
161#define APC_XINT_EMPT 0x8000
162#define APC_XINT_PEMP 0x4000
163#define APC_XINT_PNVA 0x2000
164#define APC_XINT_PENA 0x1000
165#define APC_XINT_COVF 0x800
166#define APC_XINT_CNVA 0x400
167#define APC_XINT_CEMP 0x200
168#define APC_XINT_CENA 0x100
169#define APC_PPAUSE 0x80
170#define APC_CPAUSE 0x40
171#define APC_CDC_RESET 0x20
172#define APC_PDMA_READY 0x08
173#define APC_CDMA_READY 0x04
174#define APC_CHIP_RESET 0x01
175
176
177
178#define EBDMA_CSR 0x00UL
179#define EBDMA_ADDR 0x04UL
180#define EBDMA_COUNT 0x08UL
181
182
183
184
185
186static unsigned char freq_bits[14] = {
187 0x00 | CS4231_XTAL2,
188 0x0E | CS4231_XTAL2,
189 0x00 | CS4231_XTAL1,
190 0x0E | CS4231_XTAL1,
191 0x02 | CS4231_XTAL2,
192 0x02 | CS4231_XTAL1,
193 0x04 | CS4231_XTAL2,
194 0x06 | CS4231_XTAL2,
195 0x04 | CS4231_XTAL1,
196 0x06 | CS4231_XTAL1,
197 0x0C | CS4231_XTAL2,
198 0x08 | CS4231_XTAL2,
199 0x0A | CS4231_XTAL2,
200 0x0C | CS4231_XTAL1
201};
202
203static unsigned int rates[14] = {
204 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
205 27042, 32000, 33075, 37800, 44100, 48000
206};
207
208static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
209 .count = ARRAY_SIZE(rates),
210 .list = rates,
211};
212
213static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
214{
215 return snd_pcm_hw_constraint_list(runtime, 0,
216 SNDRV_PCM_HW_PARAM_RATE,
217 &hw_constraints_rates);
218}
219
220static unsigned char snd_cs4231_original_image[32] =
221{
222 0x00,
223 0x00,
224 0x9f,
225 0x9f,
226 0x9f,
227 0x9f,
228 0xbf,
229 0xbf,
230 0x20,
231 CS4231_AUTOCALIB,
232 0x00,
233 0x00,
234 CS4231_MODE2,
235 0x00,
236 0x00,
237 0x00,
238 0x80,
239 0x01,
240 0x9f,
241 0x9f,
242 0x00,
243 0x00,
244 0x00,
245 0x00,
246 0x00,
247 0x00,
248 0x00,
249 0x00,
250 0x20,
251 0x00,
252 0x00,
253 0x00,
254};
255
256static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
257{
258 if (cp->flags & CS4231_FLAG_EBUS)
259 return readb(reg_addr);
260 else
261 return sbus_readb(reg_addr);
262}
263
264static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val,
265 void __iomem *reg_addr)
266{
267 if (cp->flags & CS4231_FLAG_EBUS)
268 return writeb(val, reg_addr);
269 else
270 return sbus_writeb(val, reg_addr);
271}
272
273
274
275
276
277static void snd_cs4231_ready(struct snd_cs4231 *chip)
278{
279 int timeout;
280
281 for (timeout = 250; timeout > 0; timeout--) {
282 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
283 if ((val & CS4231_INIT) == 0)
284 break;
285 udelay(100);
286 }
287}
288
289static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg,
290 unsigned char value)
291{
292 snd_cs4231_ready(chip);
293#ifdef CONFIG_SND_DEBUG
294 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
295 snd_printdd("out: auto calibration time out - reg = 0x%x, "
296 "value = 0x%x\n",
297 reg, value);
298#endif
299 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
300 wmb();
301 __cs4231_writeb(chip, value, CS4231U(chip, REG));
302 mb();
303}
304
305static inline void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
306 unsigned char mask, unsigned char value)
307{
308 unsigned char tmp = (chip->image[reg] & mask) | value;
309
310 chip->image[reg] = tmp;
311 if (!chip->calibrate_mute)
312 snd_cs4231_dout(chip, reg, tmp);
313}
314
315static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg,
316 unsigned char value)
317{
318 snd_cs4231_dout(chip, reg, value);
319 chip->image[reg] = value;
320 mb();
321}
322
323static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
324{
325 snd_cs4231_ready(chip);
326#ifdef CONFIG_SND_DEBUG
327 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
328 snd_printdd("in: auto calibration time out - reg = 0x%x\n",
329 reg);
330#endif
331 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
332 mb();
333 return __cs4231_readb(chip, CS4231U(chip, REG));
334}
335
336
337
338
339
340static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
341{
342 int timeout;
343
344
345 for (timeout = 5; timeout > 0; timeout--)
346 __cs4231_readb(chip, CS4231U(chip, REGSEL));
347
348
349 for (timeout = 500; timeout > 0; timeout--) {
350 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
351 if ((val & CS4231_INIT) == 0)
352 break;
353 msleep(1);
354 }
355}
356
357static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
358{
359 unsigned long flags;
360 int timeout;
361
362 spin_lock_irqsave(&chip->lock, flags);
363 snd_cs4231_ready(chip);
364#ifdef CONFIG_SND_DEBUG
365 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
366 snd_printdd("mce_up - auto calibration time out (0)\n");
367#endif
368 chip->mce_bit |= CS4231_MCE;
369 timeout = __cs4231_readb(chip, CS4231U(chip, REGSEL));
370 if (timeout == 0x80)
371 snd_printdd("mce_up [%p]: serious init problem - "
372 "codec still busy\n",
373 chip->port);
374 if (!(timeout & CS4231_MCE))
375 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f),
376 CS4231U(chip, REGSEL));
377 spin_unlock_irqrestore(&chip->lock, flags);
378}
379
380static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
381{
382 unsigned long flags, timeout;
383 int reg;
384
385 snd_cs4231_busy_wait(chip);
386 spin_lock_irqsave(&chip->lock, flags);
387#ifdef CONFIG_SND_DEBUG
388 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
389 snd_printdd("mce_down [%p] - auto calibration time out (0)\n",
390 CS4231U(chip, REGSEL));
391#endif
392 chip->mce_bit &= ~CS4231_MCE;
393 reg = __cs4231_readb(chip, CS4231U(chip, REGSEL));
394 __cs4231_writeb(chip, chip->mce_bit | (reg & 0x1f),
395 CS4231U(chip, REGSEL));
396 if (reg == 0x80)
397 snd_printdd("mce_down [%p]: serious init problem "
398 "- codec still busy\n", chip->port);
399 if ((reg & CS4231_MCE) == 0) {
400 spin_unlock_irqrestore(&chip->lock, flags);
401 return;
402 }
403
404
405
406
407 timeout = jiffies + msecs_to_jiffies(250);
408 do {
409 spin_unlock_irqrestore(&chip->lock, flags);
410 msleep(1);
411 spin_lock_irqsave(&chip->lock, flags);
412 reg = snd_cs4231_in(chip, CS4231_TEST_INIT);
413 reg &= CS4231_CALIB_IN_PROGRESS;
414 } while (reg && time_before(jiffies, timeout));
415 spin_unlock_irqrestore(&chip->lock, flags);
416
417 if (reg)
418 snd_printk(KERN_ERR
419 "mce_down - auto calibration time out (2)\n");
420}
421
422static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
423 struct snd_pcm_substream *substream,
424 unsigned int *periods_sent)
425{
426 struct snd_pcm_runtime *runtime = substream->runtime;
427
428 while (1) {
429 unsigned int period_size = snd_pcm_lib_period_bytes(substream);
430 unsigned int offset = period_size * (*periods_sent);
431
432 BUG_ON(period_size >= (1 << 24));
433
434 if (dma_cont->request(dma_cont,
435 runtime->dma_addr + offset, period_size))
436 return;
437 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
438 }
439}
440
441static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
442 unsigned int what, int on)
443{
444 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
445 struct cs4231_dma_control *dma_cont;
446
447 if (what & CS4231_PLAYBACK_ENABLE) {
448 dma_cont = &chip->p_dma;
449 if (on) {
450 dma_cont->prepare(dma_cont, 0);
451 dma_cont->enable(dma_cont, 1);
452 snd_cs4231_advance_dma(dma_cont,
453 chip->playback_substream,
454 &chip->p_periods_sent);
455 } else {
456 dma_cont->enable(dma_cont, 0);
457 }
458 }
459 if (what & CS4231_RECORD_ENABLE) {
460 dma_cont = &chip->c_dma;
461 if (on) {
462 dma_cont->prepare(dma_cont, 1);
463 dma_cont->enable(dma_cont, 1);
464 snd_cs4231_advance_dma(dma_cont,
465 chip->capture_substream,
466 &chip->c_periods_sent);
467 } else {
468 dma_cont->enable(dma_cont, 0);
469 }
470 }
471}
472
473static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
474{
475 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
476 int result = 0;
477
478 switch (cmd) {
479 case SNDRV_PCM_TRIGGER_START:
480 case SNDRV_PCM_TRIGGER_STOP:
481 {
482 unsigned int what = 0;
483 struct snd_pcm_substream *s;
484 unsigned long flags;
485
486 snd_pcm_group_for_each_entry(s, substream) {
487 if (s == chip->playback_substream) {
488 what |= CS4231_PLAYBACK_ENABLE;
489 snd_pcm_trigger_done(s, substream);
490 } else if (s == chip->capture_substream) {
491 what |= CS4231_RECORD_ENABLE;
492 snd_pcm_trigger_done(s, substream);
493 }
494 }
495
496 spin_lock_irqsave(&chip->lock, flags);
497 if (cmd == SNDRV_PCM_TRIGGER_START) {
498 cs4231_dma_trigger(substream, what, 1);
499 chip->image[CS4231_IFACE_CTRL] |= what;
500 } else {
501 cs4231_dma_trigger(substream, what, 0);
502 chip->image[CS4231_IFACE_CTRL] &= ~what;
503 }
504 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
505 chip->image[CS4231_IFACE_CTRL]);
506 spin_unlock_irqrestore(&chip->lock, flags);
507 break;
508 }
509 default:
510 result = -EINVAL;
511 break;
512 }
513
514 return result;
515}
516
517
518
519
520
521static unsigned char snd_cs4231_get_rate(unsigned int rate)
522{
523 int i;
524
525 for (i = 0; i < 14; i++)
526 if (rate == rates[i])
527 return freq_bits[i];
528
529 return freq_bits[13];
530}
531
532static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format,
533 int channels)
534{
535 unsigned char rformat;
536
537 rformat = CS4231_LINEAR_8;
538 switch (format) {
539 case SNDRV_PCM_FORMAT_MU_LAW:
540 rformat = CS4231_ULAW_8;
541 break;
542 case SNDRV_PCM_FORMAT_A_LAW:
543 rformat = CS4231_ALAW_8;
544 break;
545 case SNDRV_PCM_FORMAT_S16_LE:
546 rformat = CS4231_LINEAR_16;
547 break;
548 case SNDRV_PCM_FORMAT_S16_BE:
549 rformat = CS4231_LINEAR_16_BIG;
550 break;
551 case SNDRV_PCM_FORMAT_IMA_ADPCM:
552 rformat = CS4231_ADPCM_16;
553 break;
554 }
555 if (channels > 1)
556 rformat |= CS4231_STEREO;
557 return rformat;
558}
559
560static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
561{
562 unsigned long flags;
563
564 mute = mute ? 1 : 0;
565 spin_lock_irqsave(&chip->lock, flags);
566 if (chip->calibrate_mute == mute) {
567 spin_unlock_irqrestore(&chip->lock, flags);
568 return;
569 }
570 if (!mute) {
571 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
572 chip->image[CS4231_LEFT_INPUT]);
573 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
574 chip->image[CS4231_RIGHT_INPUT]);
575 snd_cs4231_dout(chip, CS4231_LOOPBACK,
576 chip->image[CS4231_LOOPBACK]);
577 }
578 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
579 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
580 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
581 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
582 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
583 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
584 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
585 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
586 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
587 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
588 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
589 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
590 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
591 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
592 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
593 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
594 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
595 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
596 chip->calibrate_mute = mute;
597 spin_unlock_irqrestore(&chip->lock, flags);
598}
599
600static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
601 struct snd_pcm_hw_params *params,
602 unsigned char pdfr)
603{
604 unsigned long flags;
605
606 mutex_lock(&chip->mce_mutex);
607 snd_cs4231_calibrate_mute(chip, 1);
608
609 snd_cs4231_mce_up(chip);
610
611 spin_lock_irqsave(&chip->lock, flags);
612 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
613 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
614 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
615 pdfr);
616 spin_unlock_irqrestore(&chip->lock, flags);
617
618 snd_cs4231_mce_down(chip);
619
620 snd_cs4231_calibrate_mute(chip, 0);
621 mutex_unlock(&chip->mce_mutex);
622}
623
624static void snd_cs4231_capture_format(struct snd_cs4231 *chip,
625 struct snd_pcm_hw_params *params,
626 unsigned char cdfr)
627{
628 unsigned long flags;
629
630 mutex_lock(&chip->mce_mutex);
631 snd_cs4231_calibrate_mute(chip, 1);
632
633 snd_cs4231_mce_up(chip);
634
635 spin_lock_irqsave(&chip->lock, flags);
636 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
637 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
638 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
639 (cdfr & 0x0f));
640 spin_unlock_irqrestore(&chip->lock, flags);
641 snd_cs4231_mce_down(chip);
642 snd_cs4231_mce_up(chip);
643 spin_lock_irqsave(&chip->lock, flags);
644 }
645 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
646 spin_unlock_irqrestore(&chip->lock, flags);
647
648 snd_cs4231_mce_down(chip);
649
650 snd_cs4231_calibrate_mute(chip, 0);
651 mutex_unlock(&chip->mce_mutex);
652}
653
654
655
656
657
658static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
659{
660 struct snd_cs4231 *chip = snd_timer_chip(timer);
661
662 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
663}
664
665static int snd_cs4231_timer_start(struct snd_timer *timer)
666{
667 unsigned long flags;
668 unsigned int ticks;
669 struct snd_cs4231 *chip = snd_timer_chip(timer);
670
671 spin_lock_irqsave(&chip->lock, flags);
672 ticks = timer->sticks;
673 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
674 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
675 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
676 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
677 chip->image[CS4231_TIMER_HIGH] =
678 (unsigned char) (ticks >> 8));
679 snd_cs4231_out(chip, CS4231_TIMER_LOW,
680 chip->image[CS4231_TIMER_LOW] =
681 (unsigned char) ticks);
682 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
683 chip->image[CS4231_ALT_FEATURE_1] |
684 CS4231_TIMER_ENABLE);
685 }
686 spin_unlock_irqrestore(&chip->lock, flags);
687
688 return 0;
689}
690
691static int snd_cs4231_timer_stop(struct snd_timer *timer)
692{
693 unsigned long flags;
694 struct snd_cs4231 *chip = snd_timer_chip(timer);
695
696 spin_lock_irqsave(&chip->lock, flags);
697 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
698 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
699 chip->image[CS4231_ALT_FEATURE_1]);
700 spin_unlock_irqrestore(&chip->lock, flags);
701
702 return 0;
703}
704
705static void snd_cs4231_init(struct snd_cs4231 *chip)
706{
707 unsigned long flags;
708
709 snd_cs4231_mce_down(chip);
710
711#ifdef SNDRV_DEBUG_MCE
712 snd_printdd("init: (1)\n");
713#endif
714 snd_cs4231_mce_up(chip);
715 spin_lock_irqsave(&chip->lock, flags);
716 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
717 CS4231_PLAYBACK_PIO |
718 CS4231_RECORD_ENABLE |
719 CS4231_RECORD_PIO |
720 CS4231_CALIB_MODE);
721 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
722 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
723 spin_unlock_irqrestore(&chip->lock, flags);
724 snd_cs4231_mce_down(chip);
725
726#ifdef SNDRV_DEBUG_MCE
727 snd_printdd("init: (2)\n");
728#endif
729
730 snd_cs4231_mce_up(chip);
731 spin_lock_irqsave(&chip->lock, flags);
732 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
733 chip->image[CS4231_ALT_FEATURE_1]);
734 spin_unlock_irqrestore(&chip->lock, flags);
735 snd_cs4231_mce_down(chip);
736
737#ifdef SNDRV_DEBUG_MCE
738 snd_printdd("init: (3) - afei = 0x%x\n",
739 chip->image[CS4231_ALT_FEATURE_1]);
740#endif
741
742 spin_lock_irqsave(&chip->lock, flags);
743 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2,
744 chip->image[CS4231_ALT_FEATURE_2]);
745 spin_unlock_irqrestore(&chip->lock, flags);
746
747 snd_cs4231_mce_up(chip);
748 spin_lock_irqsave(&chip->lock, flags);
749 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
750 chip->image[CS4231_PLAYBK_FORMAT]);
751 spin_unlock_irqrestore(&chip->lock, flags);
752 snd_cs4231_mce_down(chip);
753
754#ifdef SNDRV_DEBUG_MCE
755 snd_printdd("init: (4)\n");
756#endif
757
758 snd_cs4231_mce_up(chip);
759 spin_lock_irqsave(&chip->lock, flags);
760 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
761 spin_unlock_irqrestore(&chip->lock, flags);
762 snd_cs4231_mce_down(chip);
763
764#ifdef SNDRV_DEBUG_MCE
765 snd_printdd("init: (5)\n");
766#endif
767}
768
769static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
770{
771 unsigned long flags;
772
773 mutex_lock(&chip->open_mutex);
774 if ((chip->mode & mode)) {
775 mutex_unlock(&chip->open_mutex);
776 return -EAGAIN;
777 }
778 if (chip->mode & CS4231_MODE_OPEN) {
779 chip->mode |= mode;
780 mutex_unlock(&chip->open_mutex);
781 return 0;
782 }
783
784 spin_lock_irqsave(&chip->lock, flags);
785 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
786 CS4231_RECORD_IRQ |
787 CS4231_TIMER_IRQ);
788 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
789 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
790 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
791
792 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
793 CS4231_RECORD_IRQ |
794 CS4231_TIMER_IRQ);
795 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
796
797 spin_unlock_irqrestore(&chip->lock, flags);
798
799 chip->mode = mode;
800 mutex_unlock(&chip->open_mutex);
801 return 0;
802}
803
804static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
805{
806 unsigned long flags;
807
808 mutex_lock(&chip->open_mutex);
809 chip->mode &= ~mode;
810 if (chip->mode & CS4231_MODE_OPEN) {
811 mutex_unlock(&chip->open_mutex);
812 return;
813 }
814 snd_cs4231_calibrate_mute(chip, 1);
815
816
817 spin_lock_irqsave(&chip->lock, flags);
818 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
819 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
820 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
821
822
823
824 if (chip->image[CS4231_IFACE_CTRL] &
825 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
826 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
827 spin_unlock_irqrestore(&chip->lock, flags);
828 snd_cs4231_mce_up(chip);
829 spin_lock_irqsave(&chip->lock, flags);
830 chip->image[CS4231_IFACE_CTRL] &=
831 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
832 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
833 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
834 chip->image[CS4231_IFACE_CTRL]);
835 spin_unlock_irqrestore(&chip->lock, flags);
836 snd_cs4231_mce_down(chip);
837 spin_lock_irqsave(&chip->lock, flags);
838 }
839
840
841 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
842 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
843 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
844 spin_unlock_irqrestore(&chip->lock, flags);
845
846 snd_cs4231_calibrate_mute(chip, 0);
847
848 chip->mode = 0;
849 mutex_unlock(&chip->open_mutex);
850}
851
852
853
854
855
856static int snd_cs4231_timer_open(struct snd_timer *timer)
857{
858 struct snd_cs4231 *chip = snd_timer_chip(timer);
859 snd_cs4231_open(chip, CS4231_MODE_TIMER);
860 return 0;
861}
862
863static int snd_cs4231_timer_close(struct snd_timer *timer)
864{
865 struct snd_cs4231 *chip = snd_timer_chip(timer);
866 snd_cs4231_close(chip, CS4231_MODE_TIMER);
867 return 0;
868}
869
870static struct snd_timer_hardware snd_cs4231_timer_table = {
871 .flags = SNDRV_TIMER_HW_AUTO,
872 .resolution = 9945,
873 .ticks = 65535,
874 .open = snd_cs4231_timer_open,
875 .close = snd_cs4231_timer_close,
876 .c_resolution = snd_cs4231_timer_resolution,
877 .start = snd_cs4231_timer_start,
878 .stop = snd_cs4231_timer_stop,
879};
880
881
882
883
884
885static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
886 struct snd_pcm_hw_params *hw_params)
887{
888 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
889 unsigned char new_pdfr;
890 int err;
891
892 err = snd_pcm_lib_malloc_pages(substream,
893 params_buffer_bytes(hw_params));
894 if (err < 0)
895 return err;
896 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
897 params_channels(hw_params)) |
898 snd_cs4231_get_rate(params_rate(hw_params));
899 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
900
901 return 0;
902}
903
904static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
905{
906 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
907 struct snd_pcm_runtime *runtime = substream->runtime;
908 unsigned long flags;
909
910 spin_lock_irqsave(&chip->lock, flags);
911
912 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
913 CS4231_PLAYBACK_PIO);
914
915 BUG_ON(runtime->period_size > 0xffff + 1);
916
917 chip->p_periods_sent = 0;
918 spin_unlock_irqrestore(&chip->lock, flags);
919
920 return 0;
921}
922
923static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
924 struct snd_pcm_hw_params *hw_params)
925{
926 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
927 unsigned char new_cdfr;
928 int err;
929
930 err = snd_pcm_lib_malloc_pages(substream,
931 params_buffer_bytes(hw_params));
932 if (err < 0)
933 return err;
934 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
935 params_channels(hw_params)) |
936 snd_cs4231_get_rate(params_rate(hw_params));
937 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
938
939 return 0;
940}
941
942static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
943{
944 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
945 unsigned long flags;
946
947 spin_lock_irqsave(&chip->lock, flags);
948 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
949 CS4231_RECORD_PIO);
950
951
952 chip->c_periods_sent = 0;
953 spin_unlock_irqrestore(&chip->lock, flags);
954
955 return 0;
956}
957
958static void snd_cs4231_overrange(struct snd_cs4231 *chip)
959{
960 unsigned long flags;
961 unsigned char res;
962
963 spin_lock_irqsave(&chip->lock, flags);
964 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
965 spin_unlock_irqrestore(&chip->lock, flags);
966
967
968 if (res & (0x08 | 0x02))
969 chip->capture_substream->runtime->overrange++;
970}
971
972static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
973{
974 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
975 snd_pcm_period_elapsed(chip->playback_substream);
976 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
977 &chip->p_periods_sent);
978 }
979}
980
981static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
982{
983 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
984 snd_pcm_period_elapsed(chip->capture_substream);
985 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
986 &chip->c_periods_sent);
987 }
988}
989
990static snd_pcm_uframes_t snd_cs4231_playback_pointer(
991 struct snd_pcm_substream *substream)
992{
993 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
994 struct cs4231_dma_control *dma_cont = &chip->p_dma;
995 size_t ptr;
996
997 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
998 return 0;
999 ptr = dma_cont->address(dma_cont);
1000 if (ptr != 0)
1001 ptr -= substream->runtime->dma_addr;
1002
1003 return bytes_to_frames(substream->runtime, ptr);
1004}
1005
1006static snd_pcm_uframes_t snd_cs4231_capture_pointer(
1007 struct snd_pcm_substream *substream)
1008{
1009 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1010 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1011 size_t ptr;
1012
1013 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1014 return 0;
1015 ptr = dma_cont->address(dma_cont);
1016 if (ptr != 0)
1017 ptr -= substream->runtime->dma_addr;
1018
1019 return bytes_to_frames(substream->runtime, ptr);
1020}
1021
1022static int snd_cs4231_probe(struct snd_cs4231 *chip)
1023{
1024 unsigned long flags;
1025 int i;
1026 int id = 0;
1027 int vers = 0;
1028 unsigned char *ptr;
1029
1030 for (i = 0; i < 50; i++) {
1031 mb();
1032 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
1033 msleep(2);
1034 else {
1035 spin_lock_irqsave(&chip->lock, flags);
1036 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1037 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1038 vers = snd_cs4231_in(chip, CS4231_VERSION);
1039 spin_unlock_irqrestore(&chip->lock, flags);
1040 if (id == 0x0a)
1041 break;
1042 }
1043 }
1044 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1045 if (id != 0x0a)
1046 return -ENODEV;
1047
1048 spin_lock_irqsave(&chip->lock, flags);
1049
1050
1051 __cs4231_readb(chip, CS4231U(chip, STATUS));
1052 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
1053 mb();
1054
1055 spin_unlock_irqrestore(&chip->lock, flags);
1056
1057 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1058 chip->image[CS4231_IFACE_CTRL] =
1059 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1060 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1061 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1062 if (vers & 0x20)
1063 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1064
1065 ptr = (unsigned char *) &chip->image;
1066
1067 snd_cs4231_mce_down(chip);
1068
1069 spin_lock_irqsave(&chip->lock, flags);
1070
1071 for (i = 0; i < 32; i++)
1072 snd_cs4231_out(chip, i, *ptr++);
1073
1074 spin_unlock_irqrestore(&chip->lock, flags);
1075
1076 snd_cs4231_mce_up(chip);
1077
1078 snd_cs4231_mce_down(chip);
1079
1080 mdelay(2);
1081
1082 return 0;
1083}
1084
1085static struct snd_pcm_hardware snd_cs4231_playback = {
1086 .info = SNDRV_PCM_INFO_MMAP |
1087 SNDRV_PCM_INFO_INTERLEAVED |
1088 SNDRV_PCM_INFO_MMAP_VALID |
1089 SNDRV_PCM_INFO_SYNC_START,
1090 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1091 SNDRV_PCM_FMTBIT_A_LAW |
1092 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1093 SNDRV_PCM_FMTBIT_U8 |
1094 SNDRV_PCM_FMTBIT_S16_LE |
1095 SNDRV_PCM_FMTBIT_S16_BE,
1096 .rates = SNDRV_PCM_RATE_KNOT |
1097 SNDRV_PCM_RATE_8000_48000,
1098 .rate_min = 5510,
1099 .rate_max = 48000,
1100 .channels_min = 1,
1101 .channels_max = 2,
1102 .buffer_bytes_max = 32 * 1024,
1103 .period_bytes_min = 64,
1104 .period_bytes_max = 32 * 1024,
1105 .periods_min = 1,
1106 .periods_max = 1024,
1107};
1108
1109static struct snd_pcm_hardware snd_cs4231_capture = {
1110 .info = SNDRV_PCM_INFO_MMAP |
1111 SNDRV_PCM_INFO_INTERLEAVED |
1112 SNDRV_PCM_INFO_MMAP_VALID |
1113 SNDRV_PCM_INFO_SYNC_START,
1114 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1115 SNDRV_PCM_FMTBIT_A_LAW |
1116 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1117 SNDRV_PCM_FMTBIT_U8 |
1118 SNDRV_PCM_FMTBIT_S16_LE |
1119 SNDRV_PCM_FMTBIT_S16_BE,
1120 .rates = SNDRV_PCM_RATE_KNOT |
1121 SNDRV_PCM_RATE_8000_48000,
1122 .rate_min = 5510,
1123 .rate_max = 48000,
1124 .channels_min = 1,
1125 .channels_max = 2,
1126 .buffer_bytes_max = 32 * 1024,
1127 .period_bytes_min = 64,
1128 .period_bytes_max = 32 * 1024,
1129 .periods_min = 1,
1130 .periods_max = 1024,
1131};
1132
1133static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1134{
1135 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1136 struct snd_pcm_runtime *runtime = substream->runtime;
1137 int err;
1138
1139 runtime->hw = snd_cs4231_playback;
1140
1141 err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
1142 if (err < 0) {
1143 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1144 return err;
1145 }
1146 chip->playback_substream = substream;
1147 chip->p_periods_sent = 0;
1148 snd_pcm_set_sync(substream);
1149 snd_cs4231_xrate(runtime);
1150
1151 return 0;
1152}
1153
1154static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1155{
1156 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1157 struct snd_pcm_runtime *runtime = substream->runtime;
1158 int err;
1159
1160 runtime->hw = snd_cs4231_capture;
1161
1162 err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
1163 if (err < 0) {
1164 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1165 return err;
1166 }
1167 chip->capture_substream = substream;
1168 chip->c_periods_sent = 0;
1169 snd_pcm_set_sync(substream);
1170 snd_cs4231_xrate(runtime);
1171
1172 return 0;
1173}
1174
1175static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1176{
1177 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1178
1179 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1180 chip->playback_substream = NULL;
1181
1182 return 0;
1183}
1184
1185static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1186{
1187 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1188
1189 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1190 chip->capture_substream = NULL;
1191
1192 return 0;
1193}
1194
1195
1196
1197
1198
1199static struct snd_pcm_ops snd_cs4231_playback_ops = {
1200 .open = snd_cs4231_playback_open,
1201 .close = snd_cs4231_playback_close,
1202 .ioctl = snd_pcm_lib_ioctl,
1203 .hw_params = snd_cs4231_playback_hw_params,
1204 .hw_free = snd_pcm_lib_free_pages,
1205 .prepare = snd_cs4231_playback_prepare,
1206 .trigger = snd_cs4231_trigger,
1207 .pointer = snd_cs4231_playback_pointer,
1208};
1209
1210static struct snd_pcm_ops snd_cs4231_capture_ops = {
1211 .open = snd_cs4231_capture_open,
1212 .close = snd_cs4231_capture_close,
1213 .ioctl = snd_pcm_lib_ioctl,
1214 .hw_params = snd_cs4231_capture_hw_params,
1215 .hw_free = snd_pcm_lib_free_pages,
1216 .prepare = snd_cs4231_capture_prepare,
1217 .trigger = snd_cs4231_trigger,
1218 .pointer = snd_cs4231_capture_pointer,
1219};
1220
1221static int snd_cs4231_pcm(struct snd_card *card)
1222{
1223 struct snd_cs4231 *chip = card->private_data;
1224 struct snd_pcm *pcm;
1225 int err;
1226
1227 err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm);
1228 if (err < 0)
1229 return err;
1230
1231 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1232 &snd_cs4231_playback_ops);
1233 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1234 &snd_cs4231_capture_ops);
1235
1236
1237 pcm->private_data = chip;
1238 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1239 strcpy(pcm->name, "CS4231");
1240
1241 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1242 &chip->op->dev,
1243 64 * 1024, 128 * 1024);
1244
1245 chip->pcm = pcm;
1246
1247 return 0;
1248}
1249
1250static int snd_cs4231_timer(struct snd_card *card)
1251{
1252 struct snd_cs4231 *chip = card->private_data;
1253 struct snd_timer *timer;
1254 struct snd_timer_id tid;
1255 int err;
1256
1257
1258 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1259 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1260 tid.card = card->number;
1261 tid.device = 0;
1262 tid.subdevice = 0;
1263 err = snd_timer_new(card, "CS4231", &tid, &timer);
1264 if (err < 0)
1265 return err;
1266 strcpy(timer->name, "CS4231");
1267 timer->private_data = chip;
1268 timer->hw = snd_cs4231_timer_table;
1269 chip->timer = timer;
1270
1271 return 0;
1272}
1273
1274
1275
1276
1277
1278static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1279 struct snd_ctl_elem_info *uinfo)
1280{
1281 static char *texts[4] = {
1282 "Line", "CD", "Mic", "Mix"
1283 };
1284
1285 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1286 uinfo->count = 2;
1287 uinfo->value.enumerated.items = 4;
1288 if (uinfo->value.enumerated.item > 3)
1289 uinfo->value.enumerated.item = 3;
1290 strcpy(uinfo->value.enumerated.name,
1291 texts[uinfo->value.enumerated.item]);
1292
1293 return 0;
1294}
1295
1296static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1297 struct snd_ctl_elem_value *ucontrol)
1298{
1299 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1300 unsigned long flags;
1301
1302 spin_lock_irqsave(&chip->lock, flags);
1303 ucontrol->value.enumerated.item[0] =
1304 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1305 ucontrol->value.enumerated.item[1] =
1306 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1307 spin_unlock_irqrestore(&chip->lock, flags);
1308
1309 return 0;
1310}
1311
1312static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1313 struct snd_ctl_elem_value *ucontrol)
1314{
1315 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1316 unsigned long flags;
1317 unsigned short left, right;
1318 int change;
1319
1320 if (ucontrol->value.enumerated.item[0] > 3 ||
1321 ucontrol->value.enumerated.item[1] > 3)
1322 return -EINVAL;
1323 left = ucontrol->value.enumerated.item[0] << 6;
1324 right = ucontrol->value.enumerated.item[1] << 6;
1325
1326 spin_lock_irqsave(&chip->lock, flags);
1327
1328 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1329 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1330 change = left != chip->image[CS4231_LEFT_INPUT] ||
1331 right != chip->image[CS4231_RIGHT_INPUT];
1332 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1333 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1334
1335 spin_unlock_irqrestore(&chip->lock, flags);
1336
1337 return change;
1338}
1339
1340static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1341 struct snd_ctl_elem_info *uinfo)
1342{
1343 int mask = (kcontrol->private_value >> 16) & 0xff;
1344
1345 uinfo->type = (mask == 1) ?
1346 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1347 uinfo->count = 1;
1348 uinfo->value.integer.min = 0;
1349 uinfo->value.integer.max = mask;
1350
1351 return 0;
1352}
1353
1354static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1355 struct snd_ctl_elem_value *ucontrol)
1356{
1357 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1358 unsigned long flags;
1359 int reg = kcontrol->private_value & 0xff;
1360 int shift = (kcontrol->private_value >> 8) & 0xff;
1361 int mask = (kcontrol->private_value >> 16) & 0xff;
1362 int invert = (kcontrol->private_value >> 24) & 0xff;
1363
1364 spin_lock_irqsave(&chip->lock, flags);
1365
1366 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1367
1368 spin_unlock_irqrestore(&chip->lock, flags);
1369
1370 if (invert)
1371 ucontrol->value.integer.value[0] =
1372 (mask - ucontrol->value.integer.value[0]);
1373
1374 return 0;
1375}
1376
1377static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1378 struct snd_ctl_elem_value *ucontrol)
1379{
1380 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1381 unsigned long flags;
1382 int reg = kcontrol->private_value & 0xff;
1383 int shift = (kcontrol->private_value >> 8) & 0xff;
1384 int mask = (kcontrol->private_value >> 16) & 0xff;
1385 int invert = (kcontrol->private_value >> 24) & 0xff;
1386 int change;
1387 unsigned short val;
1388
1389 val = (ucontrol->value.integer.value[0] & mask);
1390 if (invert)
1391 val = mask - val;
1392 val <<= shift;
1393
1394 spin_lock_irqsave(&chip->lock, flags);
1395
1396 val = (chip->image[reg] & ~(mask << shift)) | val;
1397 change = val != chip->image[reg];
1398 snd_cs4231_out(chip, reg, val);
1399
1400 spin_unlock_irqrestore(&chip->lock, flags);
1401
1402 return change;
1403}
1404
1405static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1406 struct snd_ctl_elem_info *uinfo)
1407{
1408 int mask = (kcontrol->private_value >> 24) & 0xff;
1409
1410 uinfo->type = mask == 1 ?
1411 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1412 uinfo->count = 2;
1413 uinfo->value.integer.min = 0;
1414 uinfo->value.integer.max = mask;
1415
1416 return 0;
1417}
1418
1419static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1420 struct snd_ctl_elem_value *ucontrol)
1421{
1422 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1423 unsigned long flags;
1424 int left_reg = kcontrol->private_value & 0xff;
1425 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1426 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1427 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1428 int mask = (kcontrol->private_value >> 24) & 0xff;
1429 int invert = (kcontrol->private_value >> 22) & 1;
1430
1431 spin_lock_irqsave(&chip->lock, flags);
1432
1433 ucontrol->value.integer.value[0] =
1434 (chip->image[left_reg] >> shift_left) & mask;
1435 ucontrol->value.integer.value[1] =
1436 (chip->image[right_reg] >> shift_right) & mask;
1437
1438 spin_unlock_irqrestore(&chip->lock, flags);
1439
1440 if (invert) {
1441 ucontrol->value.integer.value[0] =
1442 (mask - ucontrol->value.integer.value[0]);
1443 ucontrol->value.integer.value[1] =
1444 (mask - ucontrol->value.integer.value[1]);
1445 }
1446
1447 return 0;
1448}
1449
1450static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1451 struct snd_ctl_elem_value *ucontrol)
1452{
1453 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1454 unsigned long flags;
1455 int left_reg = kcontrol->private_value & 0xff;
1456 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1457 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1458 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1459 int mask = (kcontrol->private_value >> 24) & 0xff;
1460 int invert = (kcontrol->private_value >> 22) & 1;
1461 int change;
1462 unsigned short val1, val2;
1463
1464 val1 = ucontrol->value.integer.value[0] & mask;
1465 val2 = ucontrol->value.integer.value[1] & mask;
1466 if (invert) {
1467 val1 = mask - val1;
1468 val2 = mask - val2;
1469 }
1470 val1 <<= shift_left;
1471 val2 <<= shift_right;
1472
1473 spin_lock_irqsave(&chip->lock, flags);
1474
1475 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1476 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1477 change = val1 != chip->image[left_reg];
1478 change |= val2 != chip->image[right_reg];
1479 snd_cs4231_out(chip, left_reg, val1);
1480 snd_cs4231_out(chip, right_reg, val2);
1481
1482 spin_unlock_irqrestore(&chip->lock, flags);
1483
1484 return change;
1485}
1486
1487#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1488{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1489 .info = snd_cs4231_info_single, \
1490 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1491 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) }
1492
1493#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \
1494 shift_right, mask, invert) \
1495{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1496 .info = snd_cs4231_info_double, \
1497 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1498 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \
1499 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) }
1500
1501static struct snd_kcontrol_new snd_cs4231_controls[] = {
1502CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT,
1503 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1504CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT,
1505 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1506CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN,
1507 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1508CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN,
1509 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1510CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT,
1511 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1512CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT,
1513 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1514CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT,
1515 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1516CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT,
1517 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1518CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1519CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1520CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1521CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1522CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0,
1523 15, 0),
1524{
1525 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1526 .name = "Capture Source",
1527 .info = snd_cs4231_info_mux,
1528 .get = snd_cs4231_get_mux,
1529 .put = snd_cs4231_put_mux,
1530},
1531CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5,
1532 1, 0),
1533CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1534CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1535
1536CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1537CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1538};
1539
1540static int snd_cs4231_mixer(struct snd_card *card)
1541{
1542 struct snd_cs4231 *chip = card->private_data;
1543 int err, idx;
1544
1545 if (snd_BUG_ON(!chip || !chip->pcm))
1546 return -EINVAL;
1547
1548 strcpy(card->mixername, chip->pcm->name);
1549
1550 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1551 err = snd_ctl_add(card,
1552 snd_ctl_new1(&snd_cs4231_controls[idx], chip));
1553 if (err < 0)
1554 return err;
1555 }
1556 return 0;
1557}
1558
1559static int dev;
1560
1561static int cs4231_attach_begin(struct snd_card **rcard)
1562{
1563 struct snd_card *card;
1564 struct snd_cs4231 *chip;
1565 int err;
1566
1567 *rcard = NULL;
1568
1569 if (dev >= SNDRV_CARDS)
1570 return -ENODEV;
1571
1572 if (!enable[dev]) {
1573 dev++;
1574 return -ENOENT;
1575 }
1576
1577 err = snd_card_create(index[dev], id[dev], THIS_MODULE,
1578 sizeof(struct snd_cs4231), &card);
1579 if (err < 0)
1580 return err;
1581
1582 strcpy(card->driver, "CS4231");
1583 strcpy(card->shortname, "Sun CS4231");
1584
1585 chip = card->private_data;
1586 chip->card = card;
1587
1588 *rcard = card;
1589 return 0;
1590}
1591
1592static int cs4231_attach_finish(struct snd_card *card)
1593{
1594 struct snd_cs4231 *chip = card->private_data;
1595 int err;
1596
1597 err = snd_cs4231_pcm(card);
1598 if (err < 0)
1599 goto out_err;
1600
1601 err = snd_cs4231_mixer(card);
1602 if (err < 0)
1603 goto out_err;
1604
1605 err = snd_cs4231_timer(card);
1606 if (err < 0)
1607 goto out_err;
1608
1609 err = snd_card_register(card);
1610 if (err < 0)
1611 goto out_err;
1612
1613 dev_set_drvdata(&chip->op->dev, chip);
1614
1615 dev++;
1616 return 0;
1617
1618out_err:
1619 snd_card_free(card);
1620 return err;
1621}
1622
1623#ifdef SBUS_SUPPORT
1624
1625static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id)
1626{
1627 unsigned long flags;
1628 unsigned char status;
1629 u32 csr;
1630 struct snd_cs4231 *chip = dev_id;
1631
1632
1633 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ))
1634 return IRQ_NONE;
1635
1636
1637 csr = sbus_readl(chip->port + APCCSR);
1638
1639 sbus_writel(csr, chip->port + APCCSR);
1640
1641 if ((csr & APC_PDMA_READY) &&
1642 (csr & APC_PLAY_INT) &&
1643 (csr & APC_XINT_PNVA) &&
1644 !(csr & APC_XINT_EMPT))
1645 snd_cs4231_play_callback(chip);
1646
1647 if ((csr & APC_CDMA_READY) &&
1648 (csr & APC_CAPT_INT) &&
1649 (csr & APC_XINT_CNVA) &&
1650 !(csr & APC_XINT_EMPT))
1651 snd_cs4231_capture_callback(chip);
1652
1653 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1654
1655 if (status & CS4231_TIMER_IRQ) {
1656 if (chip->timer)
1657 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1658 }
1659
1660 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1661 snd_cs4231_overrange(chip);
1662
1663
1664 spin_lock_irqsave(&chip->lock, flags);
1665 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1666 spin_unlock_irqrestore(&chip->lock, flags);
1667
1668 return IRQ_HANDLED;
1669}
1670
1671
1672
1673
1674
1675static int sbus_dma_request(struct cs4231_dma_control *dma_cont,
1676 dma_addr_t bus_addr, size_t len)
1677{
1678 unsigned long flags;
1679 u32 test, csr;
1680 int err;
1681 struct sbus_dma_info *base = &dma_cont->sbus_info;
1682
1683 if (len >= (1 << 24))
1684 return -EINVAL;
1685 spin_lock_irqsave(&base->lock, flags);
1686 csr = sbus_readl(base->regs + APCCSR);
1687 err = -EINVAL;
1688 test = APC_CDMA_READY;
1689 if (base->dir == APC_PLAY)
1690 test = APC_PDMA_READY;
1691 if (!(csr & test))
1692 goto out;
1693 err = -EBUSY;
1694 test = APC_XINT_CNVA;
1695 if (base->dir == APC_PLAY)
1696 test = APC_XINT_PNVA;
1697 if (!(csr & test))
1698 goto out;
1699 err = 0;
1700 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1701 sbus_writel(len, base->regs + base->dir + APCNC);
1702out:
1703 spin_unlock_irqrestore(&base->lock, flags);
1704 return err;
1705}
1706
1707static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1708{
1709 unsigned long flags;
1710 u32 csr, test;
1711 struct sbus_dma_info *base = &dma_cont->sbus_info;
1712
1713 spin_lock_irqsave(&base->lock, flags);
1714 csr = sbus_readl(base->regs + APCCSR);
1715 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1716 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1717 APC_XINT_PENA;
1718 if (base->dir == APC_RECORD)
1719 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1720 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1721 csr |= test;
1722 sbus_writel(csr, base->regs + APCCSR);
1723 spin_unlock_irqrestore(&base->lock, flags);
1724}
1725
1726static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1727{
1728 unsigned long flags;
1729 u32 csr, shift;
1730 struct sbus_dma_info *base = &dma_cont->sbus_info;
1731
1732 spin_lock_irqsave(&base->lock, flags);
1733 if (!on) {
1734 sbus_writel(0, base->regs + base->dir + APCNC);
1735 sbus_writel(0, base->regs + base->dir + APCNVA);
1736 if (base->dir == APC_PLAY) {
1737 sbus_writel(0, base->regs + base->dir + APCC);
1738 sbus_writel(0, base->regs + base->dir + APCVA);
1739 }
1740
1741 udelay(1200);
1742 }
1743 csr = sbus_readl(base->regs + APCCSR);
1744 shift = 0;
1745 if (base->dir == APC_PLAY)
1746 shift = 1;
1747 if (on)
1748 csr &= ~(APC_CPAUSE << shift);
1749 else
1750 csr |= (APC_CPAUSE << shift);
1751 sbus_writel(csr, base->regs + APCCSR);
1752 if (on)
1753 csr |= (APC_CDMA_READY << shift);
1754 else
1755 csr &= ~(APC_CDMA_READY << shift);
1756 sbus_writel(csr, base->regs + APCCSR);
1757
1758 spin_unlock_irqrestore(&base->lock, flags);
1759}
1760
1761static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1762{
1763 struct sbus_dma_info *base = &dma_cont->sbus_info;
1764
1765 return sbus_readl(base->regs + base->dir + APCVA);
1766}
1767
1768
1769
1770
1771
1772static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1773{
1774 struct platform_device *op = chip->op;
1775
1776 if (chip->irq[0])
1777 free_irq(chip->irq[0], chip);
1778
1779 if (chip->port)
1780 of_iounmap(&op->resource[0], chip->port, chip->regs_size);
1781
1782 return 0;
1783}
1784
1785static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1786{
1787 struct snd_cs4231 *cp = device->device_data;
1788
1789 return snd_cs4231_sbus_free(cp);
1790}
1791
1792static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1793 .dev_free = snd_cs4231_sbus_dev_free,
1794};
1795
1796static int snd_cs4231_sbus_create(struct snd_card *card,
1797 struct platform_device *op,
1798 int dev)
1799{
1800 struct snd_cs4231 *chip = card->private_data;
1801 int err;
1802
1803 spin_lock_init(&chip->lock);
1804 spin_lock_init(&chip->c_dma.sbus_info.lock);
1805 spin_lock_init(&chip->p_dma.sbus_info.lock);
1806 mutex_init(&chip->mce_mutex);
1807 mutex_init(&chip->open_mutex);
1808 chip->op = op;
1809 chip->regs_size = resource_size(&op->resource[0]);
1810 memcpy(&chip->image, &snd_cs4231_original_image,
1811 sizeof(snd_cs4231_original_image));
1812
1813 chip->port = of_ioremap(&op->resource[0], 0,
1814 chip->regs_size, "cs4231");
1815 if (!chip->port) {
1816 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1817 return -EIO;
1818 }
1819
1820 chip->c_dma.sbus_info.regs = chip->port;
1821 chip->p_dma.sbus_info.regs = chip->port;
1822 chip->c_dma.sbus_info.dir = APC_RECORD;
1823 chip->p_dma.sbus_info.dir = APC_PLAY;
1824
1825 chip->p_dma.prepare = sbus_dma_prepare;
1826 chip->p_dma.enable = sbus_dma_enable;
1827 chip->p_dma.request = sbus_dma_request;
1828 chip->p_dma.address = sbus_dma_addr;
1829
1830 chip->c_dma.prepare = sbus_dma_prepare;
1831 chip->c_dma.enable = sbus_dma_enable;
1832 chip->c_dma.request = sbus_dma_request;
1833 chip->c_dma.address = sbus_dma_addr;
1834
1835 if (request_irq(op->archdata.irqs[0], snd_cs4231_sbus_interrupt,
1836 IRQF_SHARED, "cs4231", chip)) {
1837 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
1838 dev, op->archdata.irqs[0]);
1839 snd_cs4231_sbus_free(chip);
1840 return -EBUSY;
1841 }
1842 chip->irq[0] = op->archdata.irqs[0];
1843
1844 if (snd_cs4231_probe(chip) < 0) {
1845 snd_cs4231_sbus_free(chip);
1846 return -ENODEV;
1847 }
1848 snd_cs4231_init(chip);
1849
1850 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1851 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
1852 snd_cs4231_sbus_free(chip);
1853 return err;
1854 }
1855
1856 return 0;
1857}
1858
1859static int cs4231_sbus_probe(struct platform_device *op)
1860{
1861 struct resource *rp = &op->resource[0];
1862 struct snd_card *card;
1863 int err;
1864
1865 err = cs4231_attach_begin(&card);
1866 if (err)
1867 return err;
1868
1869 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
1870 card->shortname,
1871 rp->flags & 0xffL,
1872 (unsigned long long)rp->start,
1873 op->archdata.irqs[0]);
1874
1875 err = snd_cs4231_sbus_create(card, op, dev);
1876 if (err < 0) {
1877 snd_card_free(card);
1878 return err;
1879 }
1880
1881 return cs4231_attach_finish(card);
1882}
1883#endif
1884
1885#ifdef EBUS_SUPPORT
1886
1887static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event,
1888 void *cookie)
1889{
1890 struct snd_cs4231 *chip = cookie;
1891
1892 snd_cs4231_play_callback(chip);
1893}
1894
1895static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p,
1896 int event, void *cookie)
1897{
1898 struct snd_cs4231 *chip = cookie;
1899
1900 snd_cs4231_capture_callback(chip);
1901}
1902
1903
1904
1905
1906
1907static int _ebus_dma_request(struct cs4231_dma_control *dma_cont,
1908 dma_addr_t bus_addr, size_t len)
1909{
1910 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
1911}
1912
1913static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1914{
1915 ebus_dma_enable(&dma_cont->ebus_info, on);
1916}
1917
1918static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
1919{
1920 ebus_dma_prepare(&dma_cont->ebus_info, dir);
1921}
1922
1923static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
1924{
1925 return ebus_dma_addr(&dma_cont->ebus_info);
1926}
1927
1928
1929
1930
1931
1932static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
1933{
1934 struct platform_device *op = chip->op;
1935
1936 if (chip->c_dma.ebus_info.regs) {
1937 ebus_dma_unregister(&chip->c_dma.ebus_info);
1938 of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10);
1939 }
1940 if (chip->p_dma.ebus_info.regs) {
1941 ebus_dma_unregister(&chip->p_dma.ebus_info);
1942 of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10);
1943 }
1944
1945 if (chip->port)
1946 of_iounmap(&op->resource[0], chip->port, 0x10);
1947
1948 return 0;
1949}
1950
1951static int snd_cs4231_ebus_dev_free(struct snd_device *device)
1952{
1953 struct snd_cs4231 *cp = device->device_data;
1954
1955 return snd_cs4231_ebus_free(cp);
1956}
1957
1958static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
1959 .dev_free = snd_cs4231_ebus_dev_free,
1960};
1961
1962static int snd_cs4231_ebus_create(struct snd_card *card,
1963 struct platform_device *op,
1964 int dev)
1965{
1966 struct snd_cs4231 *chip = card->private_data;
1967 int err;
1968
1969 spin_lock_init(&chip->lock);
1970 spin_lock_init(&chip->c_dma.ebus_info.lock);
1971 spin_lock_init(&chip->p_dma.ebus_info.lock);
1972 mutex_init(&chip->mce_mutex);
1973 mutex_init(&chip->open_mutex);
1974 chip->flags |= CS4231_FLAG_EBUS;
1975 chip->op = op;
1976 memcpy(&chip->image, &snd_cs4231_original_image,
1977 sizeof(snd_cs4231_original_image));
1978 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
1979 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1980 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
1981 chip->c_dma.ebus_info.client_cookie = chip;
1982 chip->c_dma.ebus_info.irq = op->archdata.irqs[0];
1983 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
1984 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1985 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
1986 chip->p_dma.ebus_info.client_cookie = chip;
1987 chip->p_dma.ebus_info.irq = op->archdata.irqs[1];
1988
1989 chip->p_dma.prepare = _ebus_dma_prepare;
1990 chip->p_dma.enable = _ebus_dma_enable;
1991 chip->p_dma.request = _ebus_dma_request;
1992 chip->p_dma.address = _ebus_dma_addr;
1993
1994 chip->c_dma.prepare = _ebus_dma_prepare;
1995 chip->c_dma.enable = _ebus_dma_enable;
1996 chip->c_dma.request = _ebus_dma_request;
1997 chip->c_dma.address = _ebus_dma_addr;
1998
1999 chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231");
2000 chip->p_dma.ebus_info.regs =
2001 of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma");
2002 chip->c_dma.ebus_info.regs =
2003 of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma");
2004 if (!chip->port || !chip->p_dma.ebus_info.regs ||
2005 !chip->c_dma.ebus_info.regs) {
2006 snd_cs4231_ebus_free(chip);
2007 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2008 return -EIO;
2009 }
2010
2011 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2012 snd_cs4231_ebus_free(chip);
2013 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n",
2014 dev);
2015 return -EBUSY;
2016 }
2017 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2018 snd_cs4231_ebus_free(chip);
2019 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n",
2020 dev);
2021 return -EBUSY;
2022 }
2023
2024 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2025 snd_cs4231_ebus_free(chip);
2026 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n",
2027 dev);
2028 return -EBUSY;
2029 }
2030 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2031 snd_cs4231_ebus_free(chip);
2032 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2033 return -EBUSY;
2034 }
2035
2036 if (snd_cs4231_probe(chip) < 0) {
2037 snd_cs4231_ebus_free(chip);
2038 return -ENODEV;
2039 }
2040 snd_cs4231_init(chip);
2041
2042 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2043 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2044 snd_cs4231_ebus_free(chip);
2045 return err;
2046 }
2047
2048 return 0;
2049}
2050
2051static int cs4231_ebus_probe(struct platform_device *op)
2052{
2053 struct snd_card *card;
2054 int err;
2055
2056 err = cs4231_attach_begin(&card);
2057 if (err)
2058 return err;
2059
2060 sprintf(card->longname, "%s at 0x%llx, irq %d",
2061 card->shortname,
2062 op->resource[0].start,
2063 op->archdata.irqs[0]);
2064
2065 err = snd_cs4231_ebus_create(card, op, dev);
2066 if (err < 0) {
2067 snd_card_free(card);
2068 return err;
2069 }
2070
2071 return cs4231_attach_finish(card);
2072}
2073#endif
2074
2075static int cs4231_probe(struct platform_device *op)
2076{
2077#ifdef EBUS_SUPPORT
2078 if (!strcmp(op->dev.of_node->parent->name, "ebus"))
2079 return cs4231_ebus_probe(op);
2080#endif
2081#ifdef SBUS_SUPPORT
2082 if (!strcmp(op->dev.of_node->parent->name, "sbus") ||
2083 !strcmp(op->dev.of_node->parent->name, "sbi"))
2084 return cs4231_sbus_probe(op);
2085#endif
2086 return -ENODEV;
2087}
2088
2089static int cs4231_remove(struct platform_device *op)
2090{
2091 struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
2092
2093 snd_card_free(chip->card);
2094
2095 return 0;
2096}
2097
2098static const struct of_device_id cs4231_match[] = {
2099 {
2100 .name = "SUNW,CS4231",
2101 },
2102 {
2103 .name = "audio",
2104 .compatible = "SUNW,CS4231",
2105 },
2106 {},
2107};
2108
2109MODULE_DEVICE_TABLE(of, cs4231_match);
2110
2111static struct platform_driver cs4231_driver = {
2112 .driver = {
2113 .name = "audio",
2114 .owner = THIS_MODULE,
2115 .of_match_table = cs4231_match,
2116 },
2117 .probe = cs4231_probe,
2118 .remove = cs4231_remove,
2119};
2120
2121module_platform_driver(cs4231_driver);
2122
