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11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/slab.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 int 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");
55MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
56
57#ifdef SBUS_SUPPORT
58struct sbus_dma_info {
59 spinlock_t lock;
60 int dir;
61 void __iomem *regs;
62};
63#endif
64
65struct snd_cs4231;
66struct cs4231_dma_control {
67 void (*prepare)(struct cs4231_dma_control *dma_cont,
68 int dir);
69 void (*enable)(struct cs4231_dma_control *dma_cont, int on);
70 int (*request)(struct cs4231_dma_control *dma_cont,
71 dma_addr_t bus_addr, size_t len);
72 unsigned int (*address)(struct cs4231_dma_control *dma_cont);
73#ifdef EBUS_SUPPORT
74 struct ebus_dma_info ebus_info;
75#endif
76#ifdef SBUS_SUPPORT
77 struct sbus_dma_info sbus_info;
78#endif
79};
80
81struct snd_cs4231 {
82 spinlock_t lock;
83 void __iomem *port;
84
85 struct cs4231_dma_control p_dma;
86 struct cs4231_dma_control c_dma;
87
88 u32 flags;
89#define CS4231_FLAG_EBUS 0x00000001
90#define CS4231_FLAG_PLAYBACK 0x00000002
91#define CS4231_FLAG_CAPTURE 0x00000004
92
93 struct snd_card *card;
94 struct snd_pcm *pcm;
95 struct snd_pcm_substream *playback_substream;
96 unsigned int p_periods_sent;
97 struct snd_pcm_substream *capture_substream;
98 unsigned int c_periods_sent;
99 struct snd_timer *timer;
100
101 unsigned short mode;
102#define CS4231_MODE_NONE 0x0000
103#define CS4231_MODE_PLAY 0x0001
104#define CS4231_MODE_RECORD 0x0002
105#define CS4231_MODE_TIMER 0x0004
106#define CS4231_MODE_OPEN (CS4231_MODE_PLAY | CS4231_MODE_RECORD | \
107 CS4231_MODE_TIMER)
108
109 unsigned char image[32];
110 int mce_bit;
111 int calibrate_mute;
112 struct mutex mce_mutex;
113 struct mutex open_mutex;
114
115 struct of_device *op;
116 unsigned int irq[2];
117 unsigned int regs_size;
118 struct snd_cs4231 *next;
119};
120
121
122
123
124
125
126#include <sound/cs4231-regs.h>
127
128
129#define CS4231U(chip, x) ((chip)->port + ((c_d_c_CS4231##x) << 2))
130
131
132
133#define APCCSR 0x10UL
134#define APCCVA 0x20UL
135#define APCCC 0x24UL
136#define APCCNVA 0x28UL
137#define APCCNC 0x2cUL
138#define APCPVA 0x30UL
139#define APCPC 0x34UL
140#define APCPNVA 0x38UL
141#define APCPNC 0x3cUL
142
143
144
145#define APCVA 0x0UL
146#define APCC 0x4UL
147#define APCNVA 0x8UL
148#define APCNC 0xcUL
149#define APC_PLAY 0x30UL
150#define APC_RECORD 0x20UL
151
152
153
154#define APC_INT_PENDING 0x800000
155#define APC_PLAY_INT 0x400000
156#define APC_CAPT_INT 0x200000
157#define APC_GENL_INT 0x100000
158#define APC_XINT_ENA 0x80000
159#define APC_XINT_PLAY 0x40000
160#define APC_XINT_CAPT 0x20000
161#define APC_XINT_GENL 0x10000
162#define APC_XINT_EMPT 0x8000
163#define APC_XINT_PEMP 0x4000
164#define APC_XINT_PNVA 0x2000
165#define APC_XINT_PENA 0x1000
166#define APC_XINT_COVF 0x800
167#define APC_XINT_CNVA 0x400
168#define APC_XINT_CEMP 0x200
169#define APC_XINT_CENA 0x100
170#define APC_PPAUSE 0x80
171#define APC_CPAUSE 0x40
172#define APC_CDC_RESET 0x20
173#define APC_PDMA_READY 0x08
174#define APC_CDMA_READY 0x04
175#define APC_CHIP_RESET 0x01
176
177
178
179#define EBDMA_CSR 0x00UL
180#define EBDMA_ADDR 0x04UL
181#define EBDMA_COUNT 0x08UL
182
183
184
185
186
187static unsigned char freq_bits[14] = {
188 0x00 | CS4231_XTAL2,
189 0x0E | CS4231_XTAL2,
190 0x00 | CS4231_XTAL1,
191 0x0E | CS4231_XTAL1,
192 0x02 | CS4231_XTAL2,
193 0x02 | CS4231_XTAL1,
194 0x04 | CS4231_XTAL2,
195 0x06 | CS4231_XTAL2,
196 0x04 | CS4231_XTAL1,
197 0x06 | CS4231_XTAL1,
198 0x0C | CS4231_XTAL2,
199 0x08 | CS4231_XTAL2,
200 0x0A | CS4231_XTAL2,
201 0x0C | CS4231_XTAL1
202};
203
204static unsigned int rates[14] = {
205 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
206 27042, 32000, 33075, 37800, 44100, 48000
207};
208
209static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
210 .count = ARRAY_SIZE(rates),
211 .list = rates,
212};
213
214static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
215{
216 return snd_pcm_hw_constraint_list(runtime, 0,
217 SNDRV_PCM_HW_PARAM_RATE,
218 &hw_constraints_rates);
219}
220
221static unsigned char snd_cs4231_original_image[32] =
222{
223 0x00,
224 0x00,
225 0x9f,
226 0x9f,
227 0x9f,
228 0x9f,
229 0xbf,
230 0xbf,
231 0x20,
232 CS4231_AUTOCALIB,
233 0x00,
234 0x00,
235 CS4231_MODE2,
236 0x00,
237 0x00,
238 0x00,
239 0x80,
240 0x01,
241 0x9f,
242 0x9f,
243 0x00,
244 0x00,
245 0x00,
246 0x00,
247 0x00,
248 0x00,
249 0x00,
250 0x00,
251 0x20,
252 0x00,
253 0x00,
254 0x00,
255};
256
257static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
258{
259 if (cp->flags & CS4231_FLAG_EBUS)
260 return readb(reg_addr);
261 else
262 return sbus_readb(reg_addr);
263}
264
265static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val,
266 void __iomem *reg_addr)
267{
268 if (cp->flags & CS4231_FLAG_EBUS)
269 return writeb(val, reg_addr);
270 else
271 return sbus_writeb(val, reg_addr);
272}
273
274
275
276
277
278static void snd_cs4231_ready(struct snd_cs4231 *chip)
279{
280 int timeout;
281
282 for (timeout = 250; timeout > 0; timeout--) {
283 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
284 if ((val & CS4231_INIT) == 0)
285 break;
286 udelay(100);
287 }
288}
289
290static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg,
291 unsigned char value)
292{
293 snd_cs4231_ready(chip);
294#ifdef CONFIG_SND_DEBUG
295 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
296 snd_printdd("out: auto calibration time out - reg = 0x%x, "
297 "value = 0x%x\n",
298 reg, value);
299#endif
300 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
301 wmb();
302 __cs4231_writeb(chip, value, CS4231U(chip, REG));
303 mb();
304}
305
306static inline void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
307 unsigned char mask, unsigned char value)
308{
309 unsigned char tmp = (chip->image[reg] & mask) | value;
310
311 chip->image[reg] = tmp;
312 if (!chip->calibrate_mute)
313 snd_cs4231_dout(chip, reg, tmp);
314}
315
316static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg,
317 unsigned char value)
318{
319 snd_cs4231_dout(chip, reg, value);
320 chip->image[reg] = value;
321 mb();
322}
323
324static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
325{
326 snd_cs4231_ready(chip);
327#ifdef CONFIG_SND_DEBUG
328 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
329 snd_printdd("in: auto calibration time out - reg = 0x%x\n",
330 reg);
331#endif
332 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
333 mb();
334 return __cs4231_readb(chip, CS4231U(chip, REG));
335}
336
337
338
339
340
341static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
342{
343 int timeout;
344
345
346 for (timeout = 5; timeout > 0; timeout--)
347 __cs4231_readb(chip, CS4231U(chip, REGSEL));
348
349
350 for (timeout = 500; timeout > 0; timeout--) {
351 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
352 if ((val & CS4231_INIT) == 0)
353 break;
354 msleep(1);
355 }
356}
357
358static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
359{
360 unsigned long flags;
361 int timeout;
362
363 spin_lock_irqsave(&chip->lock, flags);
364 snd_cs4231_ready(chip);
365#ifdef CONFIG_SND_DEBUG
366 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
367 snd_printdd("mce_up - auto calibration time out (0)\n");
368#endif
369 chip->mce_bit |= CS4231_MCE;
370 timeout = __cs4231_readb(chip, CS4231U(chip, REGSEL));
371 if (timeout == 0x80)
372 snd_printdd("mce_up [%p]: serious init problem - "
373 "codec still busy\n",
374 chip->port);
375 if (!(timeout & CS4231_MCE))
376 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f),
377 CS4231U(chip, REGSEL));
378 spin_unlock_irqrestore(&chip->lock, flags);
379}
380
381static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
382{
383 unsigned long flags, timeout;
384 int reg;
385
386 snd_cs4231_busy_wait(chip);
387 spin_lock_irqsave(&chip->lock, flags);
388#ifdef CONFIG_SND_DEBUG
389 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
390 snd_printdd("mce_down [%p] - auto calibration time out (0)\n",
391 CS4231U(chip, REGSEL));
392#endif
393 chip->mce_bit &= ~CS4231_MCE;
394 reg = __cs4231_readb(chip, CS4231U(chip, REGSEL));
395 __cs4231_writeb(chip, chip->mce_bit | (reg & 0x1f),
396 CS4231U(chip, REGSEL));
397 if (reg == 0x80)
398 snd_printdd("mce_down [%p]: serious init problem "
399 "- codec still busy\n", chip->port);
400 if ((reg & CS4231_MCE) == 0) {
401 spin_unlock_irqrestore(&chip->lock, flags);
402 return;
403 }
404
405
406
407
408 timeout = jiffies + msecs_to_jiffies(250);
409 do {
410 spin_unlock_irqrestore(&chip->lock, flags);
411 msleep(1);
412 spin_lock_irqsave(&chip->lock, flags);
413 reg = snd_cs4231_in(chip, CS4231_TEST_INIT);
414 reg &= CS4231_CALIB_IN_PROGRESS;
415 } while (reg && time_before(jiffies, timeout));
416 spin_unlock_irqrestore(&chip->lock, flags);
417
418 if (reg)
419 snd_printk(KERN_ERR
420 "mce_down - auto calibration time out (2)\n");
421}
422
423static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
424 struct snd_pcm_substream *substream,
425 unsigned int *periods_sent)
426{
427 struct snd_pcm_runtime *runtime = substream->runtime;
428
429 while (1) {
430 unsigned int period_size = snd_pcm_lib_period_bytes(substream);
431 unsigned int offset = period_size * (*periods_sent);
432
433 BUG_ON(period_size >= (1 << 24));
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 __devinit 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 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 int err;
892
893 err = snd_pcm_lib_malloc_pages(substream,
894 params_buffer_bytes(hw_params));
895 if (err < 0)
896 return err;
897 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
898 params_channels(hw_params)) |
899 snd_cs4231_get_rate(params_rate(hw_params));
900 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
901
902 return 0;
903}
904
905static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
906{
907 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
908 struct snd_pcm_runtime *runtime = substream->runtime;
909 unsigned long flags;
910
911 spin_lock_irqsave(&chip->lock, flags);
912
913 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
914 CS4231_PLAYBACK_PIO);
915
916 BUG_ON(runtime->period_size > 0xffff + 1);
917
918 chip->p_periods_sent = 0;
919 spin_unlock_irqrestore(&chip->lock, flags);
920
921 return 0;
922}
923
924static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
925 struct snd_pcm_hw_params *hw_params)
926{
927 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
928 unsigned char new_cdfr;
929 int err;
930
931 err = snd_pcm_lib_malloc_pages(substream,
932 params_buffer_bytes(hw_params));
933 if (err < 0)
934 return err;
935 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
936 params_channels(hw_params)) |
937 snd_cs4231_get_rate(params_rate(hw_params));
938 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
939
940 return 0;
941}
942
943static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
944{
945 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
946 unsigned long flags;
947
948 spin_lock_irqsave(&chip->lock, flags);
949 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
950 CS4231_RECORD_PIO);
951
952
953 chip->c_periods_sent = 0;
954 spin_unlock_irqrestore(&chip->lock, flags);
955
956 return 0;
957}
958
959static void snd_cs4231_overrange(struct snd_cs4231 *chip)
960{
961 unsigned long flags;
962 unsigned char res;
963
964 spin_lock_irqsave(&chip->lock, flags);
965 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
966 spin_unlock_irqrestore(&chip->lock, flags);
967
968
969 if (res & (0x08 | 0x02))
970 chip->capture_substream->runtime->overrange++;
971}
972
973static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
974{
975 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
976 snd_pcm_period_elapsed(chip->playback_substream);
977 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
978 &chip->p_periods_sent);
979 }
980}
981
982static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
983{
984 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
985 snd_pcm_period_elapsed(chip->capture_substream);
986 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
987 &chip->c_periods_sent);
988 }
989}
990
991static snd_pcm_uframes_t snd_cs4231_playback_pointer(
992 struct snd_pcm_substream *substream)
993{
994 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
995 struct cs4231_dma_control *dma_cont = &chip->p_dma;
996 size_t ptr;
997
998 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
999 return 0;
1000 ptr = dma_cont->address(dma_cont);
1001 if (ptr != 0)
1002 ptr -= substream->runtime->dma_addr;
1003
1004 return bytes_to_frames(substream->runtime, ptr);
1005}
1006
1007static snd_pcm_uframes_t snd_cs4231_capture_pointer(
1008 struct snd_pcm_substream *substream)
1009{
1010 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1011 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1012 size_t ptr;
1013
1014 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1015 return 0;
1016 ptr = dma_cont->address(dma_cont);
1017 if (ptr != 0)
1018 ptr -= substream->runtime->dma_addr;
1019
1020 return bytes_to_frames(substream->runtime, ptr);
1021}
1022
1023static int __devinit snd_cs4231_probe(struct snd_cs4231 *chip)
1024{
1025 unsigned long flags;
1026 int i;
1027 int id = 0;
1028 int vers = 0;
1029 unsigned char *ptr;
1030
1031 for (i = 0; i < 50; i++) {
1032 mb();
1033 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
1034 msleep(2);
1035 else {
1036 spin_lock_irqsave(&chip->lock, flags);
1037 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1038 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1039 vers = snd_cs4231_in(chip, CS4231_VERSION);
1040 spin_unlock_irqrestore(&chip->lock, flags);
1041 if (id == 0x0a)
1042 break;
1043 }
1044 }
1045 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1046 if (id != 0x0a)
1047 return -ENODEV;
1048
1049 spin_lock_irqsave(&chip->lock, flags);
1050
1051
1052 __cs4231_readb(chip, CS4231U(chip, STATUS));
1053 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
1054 mb();
1055
1056 spin_unlock_irqrestore(&chip->lock, flags);
1057
1058 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1059 chip->image[CS4231_IFACE_CTRL] =
1060 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1061 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1062 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1063 if (vers & 0x20)
1064 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1065
1066 ptr = (unsigned char *) &chip->image;
1067
1068 snd_cs4231_mce_down(chip);
1069
1070 spin_lock_irqsave(&chip->lock, flags);
1071
1072 for (i = 0; i < 32; i++)
1073 snd_cs4231_out(chip, i, *ptr++);
1074
1075 spin_unlock_irqrestore(&chip->lock, flags);
1076
1077 snd_cs4231_mce_up(chip);
1078
1079 snd_cs4231_mce_down(chip);
1080
1081 mdelay(2);
1082
1083 return 0;
1084}
1085
1086static struct snd_pcm_hardware snd_cs4231_playback = {
1087 .info = SNDRV_PCM_INFO_MMAP |
1088 SNDRV_PCM_INFO_INTERLEAVED |
1089 SNDRV_PCM_INFO_MMAP_VALID |
1090 SNDRV_PCM_INFO_SYNC_START,
1091 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1092 SNDRV_PCM_FMTBIT_A_LAW |
1093 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1094 SNDRV_PCM_FMTBIT_U8 |
1095 SNDRV_PCM_FMTBIT_S16_LE |
1096 SNDRV_PCM_FMTBIT_S16_BE,
1097 .rates = SNDRV_PCM_RATE_KNOT |
1098 SNDRV_PCM_RATE_8000_48000,
1099 .rate_min = 5510,
1100 .rate_max = 48000,
1101 .channels_min = 1,
1102 .channels_max = 2,
1103 .buffer_bytes_max = 32 * 1024,
1104 .period_bytes_min = 64,
1105 .period_bytes_max = 32 * 1024,
1106 .periods_min = 1,
1107 .periods_max = 1024,
1108};
1109
1110static struct snd_pcm_hardware snd_cs4231_capture = {
1111 .info = SNDRV_PCM_INFO_MMAP |
1112 SNDRV_PCM_INFO_INTERLEAVED |
1113 SNDRV_PCM_INFO_MMAP_VALID |
1114 SNDRV_PCM_INFO_SYNC_START,
1115 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1116 SNDRV_PCM_FMTBIT_A_LAW |
1117 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1118 SNDRV_PCM_FMTBIT_U8 |
1119 SNDRV_PCM_FMTBIT_S16_LE |
1120 SNDRV_PCM_FMTBIT_S16_BE,
1121 .rates = SNDRV_PCM_RATE_KNOT |
1122 SNDRV_PCM_RATE_8000_48000,
1123 .rate_min = 5510,
1124 .rate_max = 48000,
1125 .channels_min = 1,
1126 .channels_max = 2,
1127 .buffer_bytes_max = 32 * 1024,
1128 .period_bytes_min = 64,
1129 .period_bytes_max = 32 * 1024,
1130 .periods_min = 1,
1131 .periods_max = 1024,
1132};
1133
1134static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1135{
1136 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1137 struct snd_pcm_runtime *runtime = substream->runtime;
1138 int err;
1139
1140 runtime->hw = snd_cs4231_playback;
1141
1142 err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
1143 if (err < 0) {
1144 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1145 return err;
1146 }
1147 chip->playback_substream = substream;
1148 chip->p_periods_sent = 0;
1149 snd_pcm_set_sync(substream);
1150 snd_cs4231_xrate(runtime);
1151
1152 return 0;
1153}
1154
1155static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1156{
1157 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1158 struct snd_pcm_runtime *runtime = substream->runtime;
1159 int err;
1160
1161 runtime->hw = snd_cs4231_capture;
1162
1163 err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
1164 if (err < 0) {
1165 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1166 return err;
1167 }
1168 chip->capture_substream = substream;
1169 chip->c_periods_sent = 0;
1170 snd_pcm_set_sync(substream);
1171 snd_cs4231_xrate(runtime);
1172
1173 return 0;
1174}
1175
1176static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1177{
1178 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1179
1180 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1181 chip->playback_substream = NULL;
1182
1183 return 0;
1184}
1185
1186static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1187{
1188 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1189
1190 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1191 chip->capture_substream = NULL;
1192
1193 return 0;
1194}
1195
1196
1197
1198
1199
1200static struct snd_pcm_ops snd_cs4231_playback_ops = {
1201 .open = snd_cs4231_playback_open,
1202 .close = snd_cs4231_playback_close,
1203 .ioctl = snd_pcm_lib_ioctl,
1204 .hw_params = snd_cs4231_playback_hw_params,
1205 .hw_free = snd_pcm_lib_free_pages,
1206 .prepare = snd_cs4231_playback_prepare,
1207 .trigger = snd_cs4231_trigger,
1208 .pointer = snd_cs4231_playback_pointer,
1209};
1210
1211static struct snd_pcm_ops snd_cs4231_capture_ops = {
1212 .open = snd_cs4231_capture_open,
1213 .close = snd_cs4231_capture_close,
1214 .ioctl = snd_pcm_lib_ioctl,
1215 .hw_params = snd_cs4231_capture_hw_params,
1216 .hw_free = snd_pcm_lib_free_pages,
1217 .prepare = snd_cs4231_capture_prepare,
1218 .trigger = snd_cs4231_trigger,
1219 .pointer = snd_cs4231_capture_pointer,
1220};
1221
1222static int __devinit snd_cs4231_pcm(struct snd_card *card)
1223{
1224 struct snd_cs4231 *chip = card->private_data;
1225 struct snd_pcm *pcm;
1226 int err;
1227
1228 err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm);
1229 if (err < 0)
1230 return err;
1231
1232 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1233 &snd_cs4231_playback_ops);
1234 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1235 &snd_cs4231_capture_ops);
1236
1237
1238 pcm->private_data = chip;
1239 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1240 strcpy(pcm->name, "CS4231");
1241
1242 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1243 &chip->op->dev,
1244 64 * 1024, 128 * 1024);
1245
1246 chip->pcm = pcm;
1247
1248 return 0;
1249}
1250
1251static int __devinit snd_cs4231_timer(struct snd_card *card)
1252{
1253 struct snd_cs4231 *chip = card->private_data;
1254 struct snd_timer *timer;
1255 struct snd_timer_id tid;
1256 int err;
1257
1258
1259 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1260 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1261 tid.card = card->number;
1262 tid.device = 0;
1263 tid.subdevice = 0;
1264 err = snd_timer_new(card, "CS4231", &tid, &timer);
1265 if (err < 0)
1266 return err;
1267 strcpy(timer->name, "CS4231");
1268 timer->private_data = chip;
1269 timer->hw = snd_cs4231_timer_table;
1270 chip->timer = timer;
1271
1272 return 0;
1273}
1274
1275
1276
1277
1278
1279static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1280 struct snd_ctl_elem_info *uinfo)
1281{
1282 static char *texts[4] = {
1283 "Line", "CD", "Mic", "Mix"
1284 };
1285
1286 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1287 uinfo->count = 2;
1288 uinfo->value.enumerated.items = 4;
1289 if (uinfo->value.enumerated.item > 3)
1290 uinfo->value.enumerated.item = 3;
1291 strcpy(uinfo->value.enumerated.name,
1292 texts[uinfo->value.enumerated.item]);
1293
1294 return 0;
1295}
1296
1297static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1298 struct snd_ctl_elem_value *ucontrol)
1299{
1300 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1301 unsigned long flags;
1302
1303 spin_lock_irqsave(&chip->lock, flags);
1304 ucontrol->value.enumerated.item[0] =
1305 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1306 ucontrol->value.enumerated.item[1] =
1307 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1308 spin_unlock_irqrestore(&chip->lock, flags);
1309
1310 return 0;
1311}
1312
1313static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1314 struct snd_ctl_elem_value *ucontrol)
1315{
1316 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1317 unsigned long flags;
1318 unsigned short left, right;
1319 int change;
1320
1321 if (ucontrol->value.enumerated.item[0] > 3 ||
1322 ucontrol->value.enumerated.item[1] > 3)
1323 return -EINVAL;
1324 left = ucontrol->value.enumerated.item[0] << 6;
1325 right = ucontrol->value.enumerated.item[1] << 6;
1326
1327 spin_lock_irqsave(&chip->lock, flags);
1328
1329 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1330 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1331 change = left != chip->image[CS4231_LEFT_INPUT] ||
1332 right != chip->image[CS4231_RIGHT_INPUT];
1333 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1334 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1335
1336 spin_unlock_irqrestore(&chip->lock, flags);
1337
1338 return change;
1339}
1340
1341static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1342 struct snd_ctl_elem_info *uinfo)
1343{
1344 int mask = (kcontrol->private_value >> 16) & 0xff;
1345
1346 uinfo->type = (mask == 1) ?
1347 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1348 uinfo->count = 1;
1349 uinfo->value.integer.min = 0;
1350 uinfo->value.integer.max = mask;
1351
1352 return 0;
1353}
1354
1355static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1356 struct snd_ctl_elem_value *ucontrol)
1357{
1358 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1359 unsigned long flags;
1360 int reg = kcontrol->private_value & 0xff;
1361 int shift = (kcontrol->private_value >> 8) & 0xff;
1362 int mask = (kcontrol->private_value >> 16) & 0xff;
1363 int invert = (kcontrol->private_value >> 24) & 0xff;
1364
1365 spin_lock_irqsave(&chip->lock, flags);
1366
1367 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1368
1369 spin_unlock_irqrestore(&chip->lock, flags);
1370
1371 if (invert)
1372 ucontrol->value.integer.value[0] =
1373 (mask - ucontrol->value.integer.value[0]);
1374
1375 return 0;
1376}
1377
1378static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1379 struct snd_ctl_elem_value *ucontrol)
1380{
1381 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1382 unsigned long flags;
1383 int reg = kcontrol->private_value & 0xff;
1384 int shift = (kcontrol->private_value >> 8) & 0xff;
1385 int mask = (kcontrol->private_value >> 16) & 0xff;
1386 int invert = (kcontrol->private_value >> 24) & 0xff;
1387 int change;
1388 unsigned short val;
1389
1390 val = (ucontrol->value.integer.value[0] & mask);
1391 if (invert)
1392 val = mask - val;
1393 val <<= shift;
1394
1395 spin_lock_irqsave(&chip->lock, flags);
1396
1397 val = (chip->image[reg] & ~(mask << shift)) | val;
1398 change = val != chip->image[reg];
1399 snd_cs4231_out(chip, reg, val);
1400
1401 spin_unlock_irqrestore(&chip->lock, flags);
1402
1403 return change;
1404}
1405
1406static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1407 struct snd_ctl_elem_info *uinfo)
1408{
1409 int mask = (kcontrol->private_value >> 24) & 0xff;
1410
1411 uinfo->type = mask == 1 ?
1412 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1413 uinfo->count = 2;
1414 uinfo->value.integer.min = 0;
1415 uinfo->value.integer.max = mask;
1416
1417 return 0;
1418}
1419
1420static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1421 struct snd_ctl_elem_value *ucontrol)
1422{
1423 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1424 unsigned long flags;
1425 int left_reg = kcontrol->private_value & 0xff;
1426 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1427 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1428 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1429 int mask = (kcontrol->private_value >> 24) & 0xff;
1430 int invert = (kcontrol->private_value >> 22) & 1;
1431
1432 spin_lock_irqsave(&chip->lock, flags);
1433
1434 ucontrol->value.integer.value[0] =
1435 (chip->image[left_reg] >> shift_left) & mask;
1436 ucontrol->value.integer.value[1] =
1437 (chip->image[right_reg] >> shift_right) & mask;
1438
1439 spin_unlock_irqrestore(&chip->lock, flags);
1440
1441 if (invert) {
1442 ucontrol->value.integer.value[0] =
1443 (mask - ucontrol->value.integer.value[0]);
1444 ucontrol->value.integer.value[1] =
1445 (mask - ucontrol->value.integer.value[1]);
1446 }
1447
1448 return 0;
1449}
1450
1451static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1452 struct snd_ctl_elem_value *ucontrol)
1453{
1454 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1455 unsigned long flags;
1456 int left_reg = kcontrol->private_value & 0xff;
1457 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1458 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1459 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1460 int mask = (kcontrol->private_value >> 24) & 0xff;
1461 int invert = (kcontrol->private_value >> 22) & 1;
1462 int change;
1463 unsigned short val1, val2;
1464
1465 val1 = ucontrol->value.integer.value[0] & mask;
1466 val2 = ucontrol->value.integer.value[1] & mask;
1467 if (invert) {
1468 val1 = mask - val1;
1469 val2 = mask - val2;
1470 }
1471 val1 <<= shift_left;
1472 val2 <<= shift_right;
1473
1474 spin_lock_irqsave(&chip->lock, flags);
1475
1476 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1477 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1478 change = val1 != chip->image[left_reg];
1479 change |= val2 != chip->image[right_reg];
1480 snd_cs4231_out(chip, left_reg, val1);
1481 snd_cs4231_out(chip, right_reg, val2);
1482
1483 spin_unlock_irqrestore(&chip->lock, flags);
1484
1485 return change;
1486}
1487
1488#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1489{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1490 .info = snd_cs4231_info_single, \
1491 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1492 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) }
1493
1494#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \
1495 shift_right, mask, invert) \
1496{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1497 .info = snd_cs4231_info_double, \
1498 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1499 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \
1500 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) }
1501
1502static struct snd_kcontrol_new snd_cs4231_controls[] __devinitdata = {
1503CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT,
1504 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1505CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT,
1506 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1507CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN,
1508 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1509CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN,
1510 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1511CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT,
1512 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1513CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT,
1514 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1515CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT,
1516 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1517CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT,
1518 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1519CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1520CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1521CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1522CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1523CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0,
1524 15, 0),
1525{
1526 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1527 .name = "Capture Source",
1528 .info = snd_cs4231_info_mux,
1529 .get = snd_cs4231_get_mux,
1530 .put = snd_cs4231_put_mux,
1531},
1532CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5,
1533 1, 0),
1534CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1535CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1536
1537CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1538CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1539};
1540
1541static int __devinit snd_cs4231_mixer(struct snd_card *card)
1542{
1543 struct snd_cs4231 *chip = card->private_data;
1544 int err, idx;
1545
1546 if (snd_BUG_ON(!chip || !chip->pcm))
1547 return -EINVAL;
1548
1549 strcpy(card->mixername, chip->pcm->name);
1550
1551 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1552 err = snd_ctl_add(card,
1553 snd_ctl_new1(&snd_cs4231_controls[idx], chip));
1554 if (err < 0)
1555 return err;
1556 }
1557 return 0;
1558}
1559
1560static int dev;
1561
1562static int __devinit cs4231_attach_begin(struct snd_card **rcard)
1563{
1564 struct snd_card *card;
1565 struct snd_cs4231 *chip;
1566 int err;
1567
1568 *rcard = NULL;
1569
1570 if (dev >= SNDRV_CARDS)
1571 return -ENODEV;
1572
1573 if (!enable[dev]) {
1574 dev++;
1575 return -ENOENT;
1576 }
1577
1578 err = snd_card_create(index[dev], id[dev], THIS_MODULE,
1579 sizeof(struct snd_cs4231), &card);
1580 if (err < 0)
1581 return err;
1582
1583 strcpy(card->driver, "CS4231");
1584 strcpy(card->shortname, "Sun CS4231");
1585
1586 chip = card->private_data;
1587 chip->card = card;
1588
1589 *rcard = card;
1590 return 0;
1591}
1592
1593static int __devinit cs4231_attach_finish(struct snd_card *card)
1594{
1595 struct snd_cs4231 *chip = card->private_data;
1596 int err;
1597
1598 err = snd_cs4231_pcm(card);
1599 if (err < 0)
1600 goto out_err;
1601
1602 err = snd_cs4231_mixer(card);
1603 if (err < 0)
1604 goto out_err;
1605
1606 err = snd_cs4231_timer(card);
1607 if (err < 0)
1608 goto out_err;
1609
1610 err = snd_card_register(card);
1611 if (err < 0)
1612 goto out_err;
1613
1614 dev_set_drvdata(&chip->op->dev, chip);
1615
1616 dev++;
1617 return 0;
1618
1619out_err:
1620 snd_card_free(card);
1621 return err;
1622}
1623
1624#ifdef SBUS_SUPPORT
1625
1626static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id)
1627{
1628 unsigned long flags;
1629 unsigned char status;
1630 u32 csr;
1631 struct snd_cs4231 *chip = dev_id;
1632
1633
1634 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ))
1635 return IRQ_NONE;
1636
1637
1638 csr = sbus_readl(chip->port + APCCSR);
1639
1640 sbus_writel(csr, chip->port + APCCSR);
1641
1642 if ((csr & APC_PDMA_READY) &&
1643 (csr & APC_PLAY_INT) &&
1644 (csr & APC_XINT_PNVA) &&
1645 !(csr & APC_XINT_EMPT))
1646 snd_cs4231_play_callback(chip);
1647
1648 if ((csr & APC_CDMA_READY) &&
1649 (csr & APC_CAPT_INT) &&
1650 (csr & APC_XINT_CNVA) &&
1651 !(csr & APC_XINT_EMPT))
1652 snd_cs4231_capture_callback(chip);
1653
1654 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1655
1656 if (status & CS4231_TIMER_IRQ) {
1657 if (chip->timer)
1658 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1659 }
1660
1661 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1662 snd_cs4231_overrange(chip);
1663
1664
1665 spin_lock_irqsave(&chip->lock, flags);
1666 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1667 spin_unlock_irqrestore(&chip->lock, flags);
1668
1669 return IRQ_HANDLED;
1670}
1671
1672
1673
1674
1675
1676static int sbus_dma_request(struct cs4231_dma_control *dma_cont,
1677 dma_addr_t bus_addr, size_t len)
1678{
1679 unsigned long flags;
1680 u32 test, csr;
1681 int err;
1682 struct sbus_dma_info *base = &dma_cont->sbus_info;
1683
1684 if (len >= (1 << 24))
1685 return -EINVAL;
1686 spin_lock_irqsave(&base->lock, flags);
1687 csr = sbus_readl(base->regs + APCCSR);
1688 err = -EINVAL;
1689 test = APC_CDMA_READY;
1690 if (base->dir == APC_PLAY)
1691 test = APC_PDMA_READY;
1692 if (!(csr & test))
1693 goto out;
1694 err = -EBUSY;
1695 test = APC_XINT_CNVA;
1696 if (base->dir == APC_PLAY)
1697 test = APC_XINT_PNVA;
1698 if (!(csr & test))
1699 goto out;
1700 err = 0;
1701 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1702 sbus_writel(len, base->regs + base->dir + APCNC);
1703out:
1704 spin_unlock_irqrestore(&base->lock, flags);
1705 return err;
1706}
1707
1708static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1709{
1710 unsigned long flags;
1711 u32 csr, test;
1712 struct sbus_dma_info *base = &dma_cont->sbus_info;
1713
1714 spin_lock_irqsave(&base->lock, flags);
1715 csr = sbus_readl(base->regs + APCCSR);
1716 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1717 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1718 APC_XINT_PENA;
1719 if (base->dir == APC_RECORD)
1720 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1721 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1722 csr |= test;
1723 sbus_writel(csr, base->regs + APCCSR);
1724 spin_unlock_irqrestore(&base->lock, flags);
1725}
1726
1727static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1728{
1729 unsigned long flags;
1730 u32 csr, shift;
1731 struct sbus_dma_info *base = &dma_cont->sbus_info;
1732
1733 spin_lock_irqsave(&base->lock, flags);
1734 if (!on) {
1735 sbus_writel(0, base->regs + base->dir + APCNC);
1736 sbus_writel(0, base->regs + base->dir + APCNVA);
1737 if (base->dir == APC_PLAY) {
1738 sbus_writel(0, base->regs + base->dir + APCC);
1739 sbus_writel(0, base->regs + base->dir + APCVA);
1740 }
1741
1742 udelay(1200);
1743 }
1744 csr = sbus_readl(base->regs + APCCSR);
1745 shift = 0;
1746 if (base->dir == APC_PLAY)
1747 shift = 1;
1748 if (on)
1749 csr &= ~(APC_CPAUSE << shift);
1750 else
1751 csr |= (APC_CPAUSE << shift);
1752 sbus_writel(csr, base->regs + APCCSR);
1753 if (on)
1754 csr |= (APC_CDMA_READY << shift);
1755 else
1756 csr &= ~(APC_CDMA_READY << shift);
1757 sbus_writel(csr, base->regs + APCCSR);
1758
1759 spin_unlock_irqrestore(&base->lock, flags);
1760}
1761
1762static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1763{
1764 struct sbus_dma_info *base = &dma_cont->sbus_info;
1765
1766 return sbus_readl(base->regs + base->dir + APCVA);
1767}
1768
1769
1770
1771
1772
1773static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1774{
1775 struct of_device *op = chip->op;
1776
1777 if (chip->irq[0])
1778 free_irq(chip->irq[0], chip);
1779
1780 if (chip->port)
1781 of_iounmap(&op->resource[0], chip->port, chip->regs_size);
1782
1783 return 0;
1784}
1785
1786static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1787{
1788 struct snd_cs4231 *cp = device->device_data;
1789
1790 return snd_cs4231_sbus_free(cp);
1791}
1792
1793static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1794 .dev_free = snd_cs4231_sbus_dev_free,
1795};
1796
1797static int __devinit snd_cs4231_sbus_create(struct snd_card *card,
1798 struct of_device *op,
1799 int dev)
1800{
1801 struct snd_cs4231 *chip = card->private_data;
1802 int err;
1803
1804 spin_lock_init(&chip->lock);
1805 spin_lock_init(&chip->c_dma.sbus_info.lock);
1806 spin_lock_init(&chip->p_dma.sbus_info.lock);
1807 mutex_init(&chip->mce_mutex);
1808 mutex_init(&chip->open_mutex);
1809 chip->op = op;
1810 chip->regs_size = resource_size(&op->resource[0]);
1811 memcpy(&chip->image, &snd_cs4231_original_image,
1812 sizeof(snd_cs4231_original_image));
1813
1814 chip->port = of_ioremap(&op->resource[0], 0,
1815 chip->regs_size, "cs4231");
1816 if (!chip->port) {
1817 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1818 return -EIO;
1819 }
1820
1821 chip->c_dma.sbus_info.regs = chip->port;
1822 chip->p_dma.sbus_info.regs = chip->port;
1823 chip->c_dma.sbus_info.dir = APC_RECORD;
1824 chip->p_dma.sbus_info.dir = APC_PLAY;
1825
1826 chip->p_dma.prepare = sbus_dma_prepare;
1827 chip->p_dma.enable = sbus_dma_enable;
1828 chip->p_dma.request = sbus_dma_request;
1829 chip->p_dma.address = sbus_dma_addr;
1830
1831 chip->c_dma.prepare = sbus_dma_prepare;
1832 chip->c_dma.enable = sbus_dma_enable;
1833 chip->c_dma.request = sbus_dma_request;
1834 chip->c_dma.address = sbus_dma_addr;
1835
1836 if (request_irq(op->irqs[0], snd_cs4231_sbus_interrupt,
1837 IRQF_SHARED, "cs4231", chip)) {
1838 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
1839 dev, op->irqs[0]);
1840 snd_cs4231_sbus_free(chip);
1841 return -EBUSY;
1842 }
1843 chip->irq[0] = op->irqs[0];
1844
1845 if (snd_cs4231_probe(chip) < 0) {
1846 snd_cs4231_sbus_free(chip);
1847 return -ENODEV;
1848 }
1849 snd_cs4231_init(chip);
1850
1851 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1852 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
1853 snd_cs4231_sbus_free(chip);
1854 return err;
1855 }
1856
1857 return 0;
1858}
1859
1860static int __devinit cs4231_sbus_probe(struct of_device *op, const struct of_device_id *match)
1861{
1862 struct resource *rp = &op->resource[0];
1863 struct snd_card *card;
1864 int err;
1865
1866 err = cs4231_attach_begin(&card);
1867 if (err)
1868 return err;
1869
1870 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
1871 card->shortname,
1872 rp->flags & 0xffL,
1873 (unsigned long long)rp->start,
1874 op->irqs[0]);
1875
1876 err = snd_cs4231_sbus_create(card, op, dev);
1877 if (err < 0) {
1878 snd_card_free(card);
1879 return err;
1880 }
1881
1882 return cs4231_attach_finish(card);
1883}
1884#endif
1885
1886#ifdef EBUS_SUPPORT
1887
1888static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event,
1889 void *cookie)
1890{
1891 struct snd_cs4231 *chip = cookie;
1892
1893 snd_cs4231_play_callback(chip);
1894}
1895
1896static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p,
1897 int event, void *cookie)
1898{
1899 struct snd_cs4231 *chip = cookie;
1900
1901 snd_cs4231_capture_callback(chip);
1902}
1903
1904
1905
1906
1907
1908static int _ebus_dma_request(struct cs4231_dma_control *dma_cont,
1909 dma_addr_t bus_addr, size_t len)
1910{
1911 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
1912}
1913
1914static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1915{
1916 ebus_dma_enable(&dma_cont->ebus_info, on);
1917}
1918
1919static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
1920{
1921 ebus_dma_prepare(&dma_cont->ebus_info, dir);
1922}
1923
1924static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
1925{
1926 return ebus_dma_addr(&dma_cont->ebus_info);
1927}
1928
1929
1930
1931
1932
1933static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
1934{
1935 struct of_device *op = chip->op;
1936
1937 if (chip->c_dma.ebus_info.regs) {
1938 ebus_dma_unregister(&chip->c_dma.ebus_info);
1939 of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10);
1940 }
1941 if (chip->p_dma.ebus_info.regs) {
1942 ebus_dma_unregister(&chip->p_dma.ebus_info);
1943 of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10);
1944 }
1945
1946 if (chip->port)
1947 of_iounmap(&op->resource[0], chip->port, 0x10);
1948
1949 return 0;
1950}
1951
1952static int snd_cs4231_ebus_dev_free(struct snd_device *device)
1953{
1954 struct snd_cs4231 *cp = device->device_data;
1955
1956 return snd_cs4231_ebus_free(cp);
1957}
1958
1959static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
1960 .dev_free = snd_cs4231_ebus_dev_free,
1961};
1962
1963static int __devinit snd_cs4231_ebus_create(struct snd_card *card,
1964 struct of_device *op,
1965 int dev)
1966{
1967 struct snd_cs4231 *chip = card->private_data;
1968 int err;
1969
1970 spin_lock_init(&chip->lock);
1971 spin_lock_init(&chip->c_dma.ebus_info.lock);
1972 spin_lock_init(&chip->p_dma.ebus_info.lock);
1973 mutex_init(&chip->mce_mutex);
1974 mutex_init(&chip->open_mutex);
1975 chip->flags |= CS4231_FLAG_EBUS;
1976 chip->op = op;
1977 memcpy(&chip->image, &snd_cs4231_original_image,
1978 sizeof(snd_cs4231_original_image));
1979 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
1980 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1981 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
1982 chip->c_dma.ebus_info.client_cookie = chip;
1983 chip->c_dma.ebus_info.irq = op->irqs[0];
1984 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
1985 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1986 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
1987 chip->p_dma.ebus_info.client_cookie = chip;
1988 chip->p_dma.ebus_info.irq = op->irqs[1];
1989
1990 chip->p_dma.prepare = _ebus_dma_prepare;
1991 chip->p_dma.enable = _ebus_dma_enable;
1992 chip->p_dma.request = _ebus_dma_request;
1993 chip->p_dma.address = _ebus_dma_addr;
1994
1995 chip->c_dma.prepare = _ebus_dma_prepare;
1996 chip->c_dma.enable = _ebus_dma_enable;
1997 chip->c_dma.request = _ebus_dma_request;
1998 chip->c_dma.address = _ebus_dma_addr;
1999
2000 chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231");
2001 chip->p_dma.ebus_info.regs =
2002 of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma");
2003 chip->c_dma.ebus_info.regs =
2004 of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma");
2005 if (!chip->port || !chip->p_dma.ebus_info.regs ||
2006 !chip->c_dma.ebus_info.regs) {
2007 snd_cs4231_ebus_free(chip);
2008 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2009 return -EIO;
2010 }
2011
2012 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2013 snd_cs4231_ebus_free(chip);
2014 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n",
2015 dev);
2016 return -EBUSY;
2017 }
2018 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2019 snd_cs4231_ebus_free(chip);
2020 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n",
2021 dev);
2022 return -EBUSY;
2023 }
2024
2025 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2026 snd_cs4231_ebus_free(chip);
2027 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n",
2028 dev);
2029 return -EBUSY;
2030 }
2031 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2032 snd_cs4231_ebus_free(chip);
2033 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2034 return -EBUSY;
2035 }
2036
2037 if (snd_cs4231_probe(chip) < 0) {
2038 snd_cs4231_ebus_free(chip);
2039 return -ENODEV;
2040 }
2041 snd_cs4231_init(chip);
2042
2043 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2044 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2045 snd_cs4231_ebus_free(chip);
2046 return err;
2047 }
2048
2049 return 0;
2050}
2051
2052static int __devinit cs4231_ebus_probe(struct of_device *op, const struct of_device_id *match)
2053{
2054 struct snd_card *card;
2055 int err;
2056
2057 err = cs4231_attach_begin(&card);
2058 if (err)
2059 return err;
2060
2061 sprintf(card->longname, "%s at 0x%llx, irq %d",
2062 card->shortname,
2063 op->resource[0].start,
2064 op->irqs[0]);
2065
2066 err = snd_cs4231_ebus_create(card, op, dev);
2067 if (err < 0) {
2068 snd_card_free(card);
2069 return err;
2070 }
2071
2072 return cs4231_attach_finish(card);
2073}
2074#endif
2075
2076static int __devinit cs4231_probe(struct of_device *op, const struct of_device_id *match)
2077{
2078#ifdef EBUS_SUPPORT
2079 if (!strcmp(op->node->parent->name, "ebus"))
2080 return cs4231_ebus_probe(op, match);
2081#endif
2082#ifdef SBUS_SUPPORT
2083 if (!strcmp(op->node->parent->name, "sbus") ||
2084 !strcmp(op->node->parent->name, "sbi"))
2085 return cs4231_sbus_probe(op, match);
2086#endif
2087 return -ENODEV;
2088}
2089
2090static int __devexit cs4231_remove(struct of_device *op)
2091{
2092 struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
2093
2094 snd_card_free(chip->card);
2095
2096 return 0;
2097}
2098
2099static const struct of_device_id cs4231_match[] = {
2100 {
2101 .name = "SUNW,CS4231",
2102 },
2103 {
2104 .name = "audio",
2105 .compatible = "SUNW,CS4231",
2106 },
2107 {},
2108};
2109
2110MODULE_DEVICE_TABLE(of, cs4231_match);
2111
2112static struct of_platform_driver cs4231_driver = {
2113 .name = "audio",
2114 .match_table = cs4231_match,
2115 .probe = cs4231_probe,
2116 .remove = __devexit_p(cs4231_remove),
2117};
2118
2119static int __init cs4231_init(void)
2120{
2121 return of_register_driver(&cs4231_driver, &of_bus_type);
2122}
2123
2124static void __exit cs4231_exit(void)
2125{
2126 of_unregister_driver(&cs4231_driver);
2127}
2128
2129module_init(cs4231_init);
2130module_exit(cs4231_exit);
2131
