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