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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");
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 platform_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 const unsigned int rates[14] = {
205 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
206 27042, 32000, 33075, 37800, 44100, 48000
207};
208
209static const 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 if (WARN_ON(period_size >= (1 << 24)))
434 return;
435
436 if (dma_cont->request(dma_cont,
437 runtime->dma_addr + offset, period_size))
438 return;
439 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
440 }
441}
442
443static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
444 unsigned int what, int on)
445{
446 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
447 struct cs4231_dma_control *dma_cont;
448
449 if (what & CS4231_PLAYBACK_ENABLE) {
450 dma_cont = &chip->p_dma;
451 if (on) {
452 dma_cont->prepare(dma_cont, 0);
453 dma_cont->enable(dma_cont, 1);
454 snd_cs4231_advance_dma(dma_cont,
455 chip->playback_substream,
456 &chip->p_periods_sent);
457 } else {
458 dma_cont->enable(dma_cont, 0);
459 }
460 }
461 if (what & CS4231_RECORD_ENABLE) {
462 dma_cont = &chip->c_dma;
463 if (on) {
464 dma_cont->prepare(dma_cont, 1);
465 dma_cont->enable(dma_cont, 1);
466 snd_cs4231_advance_dma(dma_cont,
467 chip->capture_substream,
468 &chip->c_periods_sent);
469 } else {
470 dma_cont->enable(dma_cont, 0);
471 }
472 }
473}
474
475static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
476{
477 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
478 int result = 0;
479
480 switch (cmd) {
481 case SNDRV_PCM_TRIGGER_START:
482 case SNDRV_PCM_TRIGGER_STOP:
483 {
484 unsigned int what = 0;
485 struct snd_pcm_substream *s;
486 unsigned long flags;
487
488 snd_pcm_group_for_each_entry(s, substream) {
489 if (s == chip->playback_substream) {
490 what |= CS4231_PLAYBACK_ENABLE;
491 snd_pcm_trigger_done(s, substream);
492 } else if (s == chip->capture_substream) {
493 what |= CS4231_RECORD_ENABLE;
494 snd_pcm_trigger_done(s, substream);
495 }
496 }
497
498 spin_lock_irqsave(&chip->lock, flags);
499 if (cmd == SNDRV_PCM_TRIGGER_START) {
500 cs4231_dma_trigger(substream, what, 1);
501 chip->image[CS4231_IFACE_CTRL] |= what;
502 } else {
503 cs4231_dma_trigger(substream, what, 0);
504 chip->image[CS4231_IFACE_CTRL] &= ~what;
505 }
506 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
507 chip->image[CS4231_IFACE_CTRL]);
508 spin_unlock_irqrestore(&chip->lock, flags);
509 break;
510 }
511 default:
512 result = -EINVAL;
513 break;
514 }
515
516 return result;
517}
518
519
520
521
522
523static unsigned char snd_cs4231_get_rate(unsigned int rate)
524{
525 int i;
526
527 for (i = 0; i < 14; i++)
528 if (rate == rates[i])
529 return freq_bits[i];
530
531 return freq_bits[13];
532}
533
534static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format,
535 int channels)
536{
537 unsigned char rformat;
538
539 rformat = CS4231_LINEAR_8;
540 switch (format) {
541 case SNDRV_PCM_FORMAT_MU_LAW:
542 rformat = CS4231_ULAW_8;
543 break;
544 case SNDRV_PCM_FORMAT_A_LAW:
545 rformat = CS4231_ALAW_8;
546 break;
547 case SNDRV_PCM_FORMAT_S16_LE:
548 rformat = CS4231_LINEAR_16;
549 break;
550 case SNDRV_PCM_FORMAT_S16_BE:
551 rformat = CS4231_LINEAR_16_BIG;
552 break;
553 case SNDRV_PCM_FORMAT_IMA_ADPCM:
554 rformat = CS4231_ADPCM_16;
555 break;
556 }
557 if (channels > 1)
558 rformat |= CS4231_STEREO;
559 return rformat;
560}
561
562static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
563{
564 unsigned long flags;
565
566 mute = mute ? 1 : 0;
567 spin_lock_irqsave(&chip->lock, flags);
568 if (chip->calibrate_mute == mute) {
569 spin_unlock_irqrestore(&chip->lock, flags);
570 return;
571 }
572 if (!mute) {
573 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
574 chip->image[CS4231_LEFT_INPUT]);
575 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
576 chip->image[CS4231_RIGHT_INPUT]);
577 snd_cs4231_dout(chip, CS4231_LOOPBACK,
578 chip->image[CS4231_LOOPBACK]);
579 }
580 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
581 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
582 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
583 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
584 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
585 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
586 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
587 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
588 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
589 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
590 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
591 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
592 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
593 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
594 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
595 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
596 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
597 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
598 chip->calibrate_mute = mute;
599 spin_unlock_irqrestore(&chip->lock, flags);
600}
601
602static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
603 struct snd_pcm_hw_params *params,
604 unsigned char pdfr)
605{
606 unsigned long flags;
607
608 mutex_lock(&chip->mce_mutex);
609 snd_cs4231_calibrate_mute(chip, 1);
610
611 snd_cs4231_mce_up(chip);
612
613 spin_lock_irqsave(&chip->lock, flags);
614 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
615 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
616 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
617 pdfr);
618 spin_unlock_irqrestore(&chip->lock, flags);
619
620 snd_cs4231_mce_down(chip);
621
622 snd_cs4231_calibrate_mute(chip, 0);
623 mutex_unlock(&chip->mce_mutex);
624}
625
626static void snd_cs4231_capture_format(struct snd_cs4231 *chip,
627 struct snd_pcm_hw_params *params,
628 unsigned char cdfr)
629{
630 unsigned long flags;
631
632 mutex_lock(&chip->mce_mutex);
633 snd_cs4231_calibrate_mute(chip, 1);
634
635 snd_cs4231_mce_up(chip);
636
637 spin_lock_irqsave(&chip->lock, flags);
638 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
639 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
640 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
641 (cdfr & 0x0f));
642 spin_unlock_irqrestore(&chip->lock, flags);
643 snd_cs4231_mce_down(chip);
644 snd_cs4231_mce_up(chip);
645 spin_lock_irqsave(&chip->lock, flags);
646 }
647 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
648 spin_unlock_irqrestore(&chip->lock, flags);
649
650 snd_cs4231_mce_down(chip);
651
652 snd_cs4231_calibrate_mute(chip, 0);
653 mutex_unlock(&chip->mce_mutex);
654}
655
656
657
658
659
660static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
661{
662 struct snd_cs4231 *chip = snd_timer_chip(timer);
663
664 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
665}
666
667static int snd_cs4231_timer_start(struct snd_timer *timer)
668{
669 unsigned long flags;
670 unsigned int ticks;
671 struct snd_cs4231 *chip = snd_timer_chip(timer);
672
673 spin_lock_irqsave(&chip->lock, flags);
674 ticks = timer->sticks;
675 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
676 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
677 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
678 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
679 chip->image[CS4231_TIMER_HIGH] =
680 (unsigned char) (ticks >> 8));
681 snd_cs4231_out(chip, CS4231_TIMER_LOW,
682 chip->image[CS4231_TIMER_LOW] =
683 (unsigned char) ticks);
684 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
685 chip->image[CS4231_ALT_FEATURE_1] |
686 CS4231_TIMER_ENABLE);
687 }
688 spin_unlock_irqrestore(&chip->lock, flags);
689
690 return 0;
691}
692
693static int snd_cs4231_timer_stop(struct snd_timer *timer)
694{
695 unsigned long flags;
696 struct snd_cs4231 *chip = snd_timer_chip(timer);
697
698 spin_lock_irqsave(&chip->lock, flags);
699 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
700 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
701 chip->image[CS4231_ALT_FEATURE_1]);
702 spin_unlock_irqrestore(&chip->lock, flags);
703
704 return 0;
705}
706
707static void snd_cs4231_init(struct snd_cs4231 *chip)
708{
709 unsigned long flags;
710
711 snd_cs4231_mce_down(chip);
712
713#ifdef SNDRV_DEBUG_MCE
714 snd_printdd("init: (1)\n");
715#endif
716 snd_cs4231_mce_up(chip);
717 spin_lock_irqsave(&chip->lock, flags);
718 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
719 CS4231_PLAYBACK_PIO |
720 CS4231_RECORD_ENABLE |
721 CS4231_RECORD_PIO |
722 CS4231_CALIB_MODE);
723 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
724 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
725 spin_unlock_irqrestore(&chip->lock, flags);
726 snd_cs4231_mce_down(chip);
727
728#ifdef SNDRV_DEBUG_MCE
729 snd_printdd("init: (2)\n");
730#endif
731
732 snd_cs4231_mce_up(chip);
733 spin_lock_irqsave(&chip->lock, flags);
734 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
735 chip->image[CS4231_ALT_FEATURE_1]);
736 spin_unlock_irqrestore(&chip->lock, flags);
737 snd_cs4231_mce_down(chip);
738
739#ifdef SNDRV_DEBUG_MCE
740 snd_printdd("init: (3) - afei = 0x%x\n",
741 chip->image[CS4231_ALT_FEATURE_1]);
742#endif
743
744 spin_lock_irqsave(&chip->lock, flags);
745 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2,
746 chip->image[CS4231_ALT_FEATURE_2]);
747 spin_unlock_irqrestore(&chip->lock, flags);
748
749 snd_cs4231_mce_up(chip);
750 spin_lock_irqsave(&chip->lock, flags);
751 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
752 chip->image[CS4231_PLAYBK_FORMAT]);
753 spin_unlock_irqrestore(&chip->lock, flags);
754 snd_cs4231_mce_down(chip);
755
756#ifdef SNDRV_DEBUG_MCE
757 snd_printdd("init: (4)\n");
758#endif
759
760 snd_cs4231_mce_up(chip);
761 spin_lock_irqsave(&chip->lock, flags);
762 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
763 spin_unlock_irqrestore(&chip->lock, flags);
764 snd_cs4231_mce_down(chip);
765
766#ifdef SNDRV_DEBUG_MCE
767 snd_printdd("init: (5)\n");
768#endif
769}
770
771static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
772{
773 unsigned long flags;
774
775 mutex_lock(&chip->open_mutex);
776 if ((chip->mode & mode)) {
777 mutex_unlock(&chip->open_mutex);
778 return -EAGAIN;
779 }
780 if (chip->mode & CS4231_MODE_OPEN) {
781 chip->mode |= mode;
782 mutex_unlock(&chip->open_mutex);
783 return 0;
784 }
785
786 spin_lock_irqsave(&chip->lock, flags);
787 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
788 CS4231_RECORD_IRQ |
789 CS4231_TIMER_IRQ);
790 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
791 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
792 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
793
794 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
795 CS4231_RECORD_IRQ |
796 CS4231_TIMER_IRQ);
797 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
798
799 spin_unlock_irqrestore(&chip->lock, flags);
800
801 chip->mode = mode;
802 mutex_unlock(&chip->open_mutex);
803 return 0;
804}
805
806static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
807{
808 unsigned long flags;
809
810 mutex_lock(&chip->open_mutex);
811 chip->mode &= ~mode;
812 if (chip->mode & CS4231_MODE_OPEN) {
813 mutex_unlock(&chip->open_mutex);
814 return;
815 }
816 snd_cs4231_calibrate_mute(chip, 1);
817
818
819 spin_lock_irqsave(&chip->lock, flags);
820 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
821 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
822 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
823
824
825
826 if (chip->image[CS4231_IFACE_CTRL] &
827 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
828 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
829 spin_unlock_irqrestore(&chip->lock, flags);
830 snd_cs4231_mce_up(chip);
831 spin_lock_irqsave(&chip->lock, flags);
832 chip->image[CS4231_IFACE_CTRL] &=
833 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
834 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
835 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
836 chip->image[CS4231_IFACE_CTRL]);
837 spin_unlock_irqrestore(&chip->lock, flags);
838 snd_cs4231_mce_down(chip);
839 spin_lock_irqsave(&chip->lock, flags);
840 }
841
842
843 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
844 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
845 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
846 spin_unlock_irqrestore(&chip->lock, flags);
847
848 snd_cs4231_calibrate_mute(chip, 0);
849
850 chip->mode = 0;
851 mutex_unlock(&chip->open_mutex);
852}
853
854
855
856
857
858static int snd_cs4231_timer_open(struct snd_timer *timer)
859{
860 struct snd_cs4231 *chip = snd_timer_chip(timer);
861 snd_cs4231_open(chip, CS4231_MODE_TIMER);
862 return 0;
863}
864
865static int snd_cs4231_timer_close(struct snd_timer *timer)
866{
867 struct snd_cs4231 *chip = snd_timer_chip(timer);
868 snd_cs4231_close(chip, CS4231_MODE_TIMER);
869 return 0;
870}
871
872static struct snd_timer_hardware snd_cs4231_timer_table = {
873 .flags = SNDRV_TIMER_HW_AUTO,
874 .resolution = 9945,
875 .ticks = 65535,
876 .open = snd_cs4231_timer_open,
877 .close = snd_cs4231_timer_close,
878 .c_resolution = snd_cs4231_timer_resolution,
879 .start = snd_cs4231_timer_start,
880 .stop = snd_cs4231_timer_stop,
881};
882
883
884
885
886
887static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
888 struct snd_pcm_hw_params *hw_params)
889{
890 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
891 unsigned char new_pdfr;
892 int err;
893
894 err = snd_pcm_lib_malloc_pages(substream,
895 params_buffer_bytes(hw_params));
896 if (err < 0)
897 return err;
898 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
899 params_channels(hw_params)) |
900 snd_cs4231_get_rate(params_rate(hw_params));
901 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
902
903 return 0;
904}
905
906static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
907{
908 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
909 struct snd_pcm_runtime *runtime = substream->runtime;
910 unsigned long flags;
911 int ret = 0;
912
913 spin_lock_irqsave(&chip->lock, flags);
914
915 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
916 CS4231_PLAYBACK_PIO);
917
918 if (WARN_ON(runtime->period_size > 0xffff + 1)) {
919 ret = -EINVAL;
920 goto out;
921 }
922
923 chip->p_periods_sent = 0;
924
925out:
926 spin_unlock_irqrestore(&chip->lock, flags);
927
928 return ret;
929}
930
931static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
932 struct snd_pcm_hw_params *hw_params)
933{
934 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
935 unsigned char new_cdfr;
936 int err;
937
938 err = snd_pcm_lib_malloc_pages(substream,
939 params_buffer_bytes(hw_params));
940 if (err < 0)
941 return err;
942 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
943 params_channels(hw_params)) |
944 snd_cs4231_get_rate(params_rate(hw_params));
945 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
946
947 return 0;
948}
949
950static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
951{
952 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
953 unsigned long flags;
954
955 spin_lock_irqsave(&chip->lock, flags);
956 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
957 CS4231_RECORD_PIO);
958
959
960 chip->c_periods_sent = 0;
961 spin_unlock_irqrestore(&chip->lock, flags);
962
963 return 0;
964}
965
966static void snd_cs4231_overrange(struct snd_cs4231 *chip)
967{
968 unsigned long flags;
969 unsigned char res;
970
971 spin_lock_irqsave(&chip->lock, flags);
972 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
973 spin_unlock_irqrestore(&chip->lock, flags);
974
975
976 if (res & (0x08 | 0x02))
977 chip->capture_substream->runtime->overrange++;
978}
979
980static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
981{
982 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
983 snd_pcm_period_elapsed(chip->playback_substream);
984 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
985 &chip->p_periods_sent);
986 }
987}
988
989static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
990{
991 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
992 snd_pcm_period_elapsed(chip->capture_substream);
993 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
994 &chip->c_periods_sent);
995 }
996}
997
998static snd_pcm_uframes_t snd_cs4231_playback_pointer(
999 struct snd_pcm_substream *substream)
1000{
1001 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1002 struct cs4231_dma_control *dma_cont = &chip->p_dma;
1003 size_t ptr;
1004
1005 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1006 return 0;
1007 ptr = dma_cont->address(dma_cont);
1008 if (ptr != 0)
1009 ptr -= substream->runtime->dma_addr;
1010
1011 return bytes_to_frames(substream->runtime, ptr);
1012}
1013
1014static snd_pcm_uframes_t snd_cs4231_capture_pointer(
1015 struct snd_pcm_substream *substream)
1016{
1017 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1018 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1019 size_t ptr;
1020
1021 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1022 return 0;
1023 ptr = dma_cont->address(dma_cont);
1024 if (ptr != 0)
1025 ptr -= substream->runtime->dma_addr;
1026
1027 return bytes_to_frames(substream->runtime, ptr);
1028}
1029
1030static int snd_cs4231_probe(struct snd_cs4231 *chip)
1031{
1032 unsigned long flags;
1033 int i;
1034 int id = 0;
1035 int vers = 0;
1036 unsigned char *ptr;
1037
1038 for (i = 0; i < 50; i++) {
1039 mb();
1040 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
1041 msleep(2);
1042 else {
1043 spin_lock_irqsave(&chip->lock, flags);
1044 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1045 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1046 vers = snd_cs4231_in(chip, CS4231_VERSION);
1047 spin_unlock_irqrestore(&chip->lock, flags);
1048 if (id == 0x0a)
1049 break;
1050 }
1051 }
1052 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1053 if (id != 0x0a)
1054 return -ENODEV;
1055
1056 spin_lock_irqsave(&chip->lock, flags);
1057
1058
1059 __cs4231_readb(chip, CS4231U(chip, STATUS));
1060 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
1061 mb();
1062
1063 spin_unlock_irqrestore(&chip->lock, flags);
1064
1065 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1066 chip->image[CS4231_IFACE_CTRL] =
1067 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1068 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1069 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1070 if (vers & 0x20)
1071 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1072
1073 ptr = (unsigned char *) &chip->image;
1074
1075 snd_cs4231_mce_down(chip);
1076
1077 spin_lock_irqsave(&chip->lock, flags);
1078
1079 for (i = 0; i < 32; i++)
1080 snd_cs4231_out(chip, i, *ptr++);
1081
1082 spin_unlock_irqrestore(&chip->lock, flags);
1083
1084 snd_cs4231_mce_up(chip);
1085
1086 snd_cs4231_mce_down(chip);
1087
1088 mdelay(2);
1089
1090 return 0;
1091}
1092
1093static const struct snd_pcm_hardware snd_cs4231_playback = {
1094 .info = SNDRV_PCM_INFO_MMAP |
1095 SNDRV_PCM_INFO_INTERLEAVED |
1096 SNDRV_PCM_INFO_MMAP_VALID |
1097 SNDRV_PCM_INFO_SYNC_START,
1098 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1099 SNDRV_PCM_FMTBIT_A_LAW |
1100 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1101 SNDRV_PCM_FMTBIT_U8 |
1102 SNDRV_PCM_FMTBIT_S16_LE |
1103 SNDRV_PCM_FMTBIT_S16_BE,
1104 .rates = SNDRV_PCM_RATE_KNOT |
1105 SNDRV_PCM_RATE_8000_48000,
1106 .rate_min = 5510,
1107 .rate_max = 48000,
1108 .channels_min = 1,
1109 .channels_max = 2,
1110 .buffer_bytes_max = 32 * 1024,
1111 .period_bytes_min = 64,
1112 .period_bytes_max = 32 * 1024,
1113 .periods_min = 1,
1114 .periods_max = 1024,
1115};
1116
1117static const struct snd_pcm_hardware snd_cs4231_capture = {
1118 .info = SNDRV_PCM_INFO_MMAP |
1119 SNDRV_PCM_INFO_INTERLEAVED |
1120 SNDRV_PCM_INFO_MMAP_VALID |
1121 SNDRV_PCM_INFO_SYNC_START,
1122 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1123 SNDRV_PCM_FMTBIT_A_LAW |
1124 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1125 SNDRV_PCM_FMTBIT_U8 |
1126 SNDRV_PCM_FMTBIT_S16_LE |
1127 SNDRV_PCM_FMTBIT_S16_BE,
1128 .rates = SNDRV_PCM_RATE_KNOT |
1129 SNDRV_PCM_RATE_8000_48000,
1130 .rate_min = 5510,
1131 .rate_max = 48000,
1132 .channels_min = 1,
1133 .channels_max = 2,
1134 .buffer_bytes_max = 32 * 1024,
1135 .period_bytes_min = 64,
1136 .period_bytes_max = 32 * 1024,
1137 .periods_min = 1,
1138 .periods_max = 1024,
1139};
1140
1141static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1142{
1143 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1144 struct snd_pcm_runtime *runtime = substream->runtime;
1145 int err;
1146
1147 runtime->hw = snd_cs4231_playback;
1148
1149 err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
1150 if (err < 0)
1151 return err;
1152 chip->playback_substream = substream;
1153 chip->p_periods_sent = 0;
1154 snd_pcm_set_sync(substream);
1155 snd_cs4231_xrate(runtime);
1156
1157 return 0;
1158}
1159
1160static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1161{
1162 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1163 struct snd_pcm_runtime *runtime = substream->runtime;
1164 int err;
1165
1166 runtime->hw = snd_cs4231_capture;
1167
1168 err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
1169 if (err < 0)
1170 return err;
1171 chip->capture_substream = substream;
1172 chip->c_periods_sent = 0;
1173 snd_pcm_set_sync(substream);
1174 snd_cs4231_xrate(runtime);
1175
1176 return 0;
1177}
1178
1179static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1180{
1181 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1182
1183 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1184 chip->playback_substream = NULL;
1185
1186 return 0;
1187}
1188
1189static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1190{
1191 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1192
1193 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1194 chip->capture_substream = NULL;
1195
1196 return 0;
1197}
1198
1199
1200
1201
1202
1203static const struct snd_pcm_ops snd_cs4231_playback_ops = {
1204 .open = snd_cs4231_playback_open,
1205 .close = snd_cs4231_playback_close,
1206 .ioctl = snd_pcm_lib_ioctl,
1207 .hw_params = snd_cs4231_playback_hw_params,
1208 .hw_free = snd_pcm_lib_free_pages,
1209 .prepare = snd_cs4231_playback_prepare,
1210 .trigger = snd_cs4231_trigger,
1211 .pointer = snd_cs4231_playback_pointer,
1212};
1213
1214static const struct snd_pcm_ops snd_cs4231_capture_ops = {
1215 .open = snd_cs4231_capture_open,
1216 .close = snd_cs4231_capture_close,
1217 .ioctl = snd_pcm_lib_ioctl,
1218 .hw_params = snd_cs4231_capture_hw_params,
1219 .hw_free = snd_pcm_lib_free_pages,
1220 .prepare = snd_cs4231_capture_prepare,
1221 .trigger = snd_cs4231_trigger,
1222 .pointer = snd_cs4231_capture_pointer,
1223};
1224
1225static int snd_cs4231_pcm(struct snd_card *card)
1226{
1227 struct snd_cs4231 *chip = card->private_data;
1228 struct snd_pcm *pcm;
1229 int err;
1230
1231 err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm);
1232 if (err < 0)
1233 return err;
1234
1235 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1236 &snd_cs4231_playback_ops);
1237 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1238 &snd_cs4231_capture_ops);
1239
1240
1241 pcm->private_data = chip;
1242 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1243 strcpy(pcm->name, "CS4231");
1244
1245 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1246 &chip->op->dev,
1247 64 * 1024, 128 * 1024);
1248
1249 chip->pcm = pcm;
1250
1251 return 0;
1252}
1253
1254static int snd_cs4231_timer(struct snd_card *card)
1255{
1256 struct snd_cs4231 *chip = card->private_data;
1257 struct snd_timer *timer;
1258 struct snd_timer_id tid;
1259 int err;
1260
1261
1262 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1263 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1264 tid.card = card->number;
1265 tid.device = 0;
1266 tid.subdevice = 0;
1267 err = snd_timer_new(card, "CS4231", &tid, &timer);
1268 if (err < 0)
1269 return err;
1270 strcpy(timer->name, "CS4231");
1271 timer->private_data = chip;
1272 timer->hw = snd_cs4231_timer_table;
1273 chip->timer = timer;
1274
1275 return 0;
1276}
1277
1278
1279
1280
1281
1282static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1283 struct snd_ctl_elem_info *uinfo)
1284{
1285 static const char * const texts[4] = {
1286 "Line", "CD", "Mic", "Mix"
1287 };
1288
1289 return snd_ctl_enum_info(uinfo, 2, 4, texts);
1290}
1291
1292static int snd_cs4231_get_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
1298 spin_lock_irqsave(&chip->lock, flags);
1299 ucontrol->value.enumerated.item[0] =
1300 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1301 ucontrol->value.enumerated.item[1] =
1302 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1303 spin_unlock_irqrestore(&chip->lock, flags);
1304
1305 return 0;
1306}
1307
1308static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1309 struct snd_ctl_elem_value *ucontrol)
1310{
1311 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1312 unsigned long flags;
1313 unsigned short left, right;
1314 int change;
1315
1316 if (ucontrol->value.enumerated.item[0] > 3 ||
1317 ucontrol->value.enumerated.item[1] > 3)
1318 return -EINVAL;
1319 left = ucontrol->value.enumerated.item[0] << 6;
1320 right = ucontrol->value.enumerated.item[1] << 6;
1321
1322 spin_lock_irqsave(&chip->lock, flags);
1323
1324 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1325 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1326 change = left != chip->image[CS4231_LEFT_INPUT] ||
1327 right != chip->image[CS4231_RIGHT_INPUT];
1328 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1329 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1330
1331 spin_unlock_irqrestore(&chip->lock, flags);
1332
1333 return change;
1334}
1335
1336static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1337 struct snd_ctl_elem_info *uinfo)
1338{
1339 int mask = (kcontrol->private_value >> 16) & 0xff;
1340
1341 uinfo->type = (mask == 1) ?
1342 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1343 uinfo->count = 1;
1344 uinfo->value.integer.min = 0;
1345 uinfo->value.integer.max = mask;
1346
1347 return 0;
1348}
1349
1350static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1351 struct snd_ctl_elem_value *ucontrol)
1352{
1353 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1354 unsigned long flags;
1355 int reg = kcontrol->private_value & 0xff;
1356 int shift = (kcontrol->private_value >> 8) & 0xff;
1357 int mask = (kcontrol->private_value >> 16) & 0xff;
1358 int invert = (kcontrol->private_value >> 24) & 0xff;
1359
1360 spin_lock_irqsave(&chip->lock, flags);
1361
1362 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1363
1364 spin_unlock_irqrestore(&chip->lock, flags);
1365
1366 if (invert)
1367 ucontrol->value.integer.value[0] =
1368 (mask - ucontrol->value.integer.value[0]);
1369
1370 return 0;
1371}
1372
1373static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1374 struct snd_ctl_elem_value *ucontrol)
1375{
1376 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1377 unsigned long flags;
1378 int reg = kcontrol->private_value & 0xff;
1379 int shift = (kcontrol->private_value >> 8) & 0xff;
1380 int mask = (kcontrol->private_value >> 16) & 0xff;
1381 int invert = (kcontrol->private_value >> 24) & 0xff;
1382 int change;
1383 unsigned short val;
1384
1385 val = (ucontrol->value.integer.value[0] & mask);
1386 if (invert)
1387 val = mask - val;
1388 val <<= shift;
1389
1390 spin_lock_irqsave(&chip->lock, flags);
1391
1392 val = (chip->image[reg] & ~(mask << shift)) | val;
1393 change = val != chip->image[reg];
1394 snd_cs4231_out(chip, reg, val);
1395
1396 spin_unlock_irqrestore(&chip->lock, flags);
1397
1398 return change;
1399}
1400
1401static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1402 struct snd_ctl_elem_info *uinfo)
1403{
1404 int mask = (kcontrol->private_value >> 24) & 0xff;
1405
1406 uinfo->type = mask == 1 ?
1407 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1408 uinfo->count = 2;
1409 uinfo->value.integer.min = 0;
1410 uinfo->value.integer.max = mask;
1411
1412 return 0;
1413}
1414
1415static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1416 struct snd_ctl_elem_value *ucontrol)
1417{
1418 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1419 unsigned long flags;
1420 int left_reg = kcontrol->private_value & 0xff;
1421 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1422 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1423 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1424 int mask = (kcontrol->private_value >> 24) & 0xff;
1425 int invert = (kcontrol->private_value >> 22) & 1;
1426
1427 spin_lock_irqsave(&chip->lock, flags);
1428
1429 ucontrol->value.integer.value[0] =
1430 (chip->image[left_reg] >> shift_left) & mask;
1431 ucontrol->value.integer.value[1] =
1432 (chip->image[right_reg] >> shift_right) & mask;
1433
1434 spin_unlock_irqrestore(&chip->lock, flags);
1435
1436 if (invert) {
1437 ucontrol->value.integer.value[0] =
1438 (mask - ucontrol->value.integer.value[0]);
1439 ucontrol->value.integer.value[1] =
1440 (mask - ucontrol->value.integer.value[1]);
1441 }
1442
1443 return 0;
1444}
1445
1446static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1447 struct snd_ctl_elem_value *ucontrol)
1448{
1449 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1450 unsigned long flags;
1451 int left_reg = kcontrol->private_value & 0xff;
1452 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1453 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1454 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1455 int mask = (kcontrol->private_value >> 24) & 0xff;
1456 int invert = (kcontrol->private_value >> 22) & 1;
1457 int change;
1458 unsigned short val1, val2;
1459
1460 val1 = ucontrol->value.integer.value[0] & mask;
1461 val2 = ucontrol->value.integer.value[1] & mask;
1462 if (invert) {
1463 val1 = mask - val1;
1464 val2 = mask - val2;
1465 }
1466 val1 <<= shift_left;
1467 val2 <<= shift_right;
1468
1469 spin_lock_irqsave(&chip->lock, flags);
1470
1471 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1472 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1473 change = val1 != chip->image[left_reg];
1474 change |= val2 != chip->image[right_reg];
1475 snd_cs4231_out(chip, left_reg, val1);
1476 snd_cs4231_out(chip, right_reg, val2);
1477
1478 spin_unlock_irqrestore(&chip->lock, flags);
1479
1480 return change;
1481}
1482
1483#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1484{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1485 .info = snd_cs4231_info_single, \
1486 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1487 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) }
1488
1489#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \
1490 shift_right, mask, invert) \
1491{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1492 .info = snd_cs4231_info_double, \
1493 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1494 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \
1495 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) }
1496
1497static struct snd_kcontrol_new snd_cs4231_controls[] = {
1498CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT,
1499 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1500CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT,
1501 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1502CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN,
1503 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1504CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN,
1505 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1506CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT,
1507 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1508CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT,
1509 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1510CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT,
1511 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1512CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT,
1513 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1514CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1515CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1516CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1517CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1518CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0,
1519 15, 0),
1520{
1521 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1522 .name = "Capture Source",
1523 .info = snd_cs4231_info_mux,
1524 .get = snd_cs4231_get_mux,
1525 .put = snd_cs4231_put_mux,
1526},
1527CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5,
1528 1, 0),
1529CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1530CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1531
1532CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1533CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1534};
1535
1536static int snd_cs4231_mixer(struct snd_card *card)
1537{
1538 struct snd_cs4231 *chip = card->private_data;
1539 int err, idx;
1540
1541 if (snd_BUG_ON(!chip || !chip->pcm))
1542 return -EINVAL;
1543
1544 strcpy(card->mixername, chip->pcm->name);
1545
1546 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1547 err = snd_ctl_add(card,
1548 snd_ctl_new1(&snd_cs4231_controls[idx], chip));
1549 if (err < 0)
1550 return err;
1551 }
1552 return 0;
1553}
1554
1555static int dev;
1556
1557static int cs4231_attach_begin(struct platform_device *op,
1558 struct snd_card **rcard)
1559{
1560 struct snd_card *card;
1561 struct snd_cs4231 *chip;
1562 int err;
1563
1564 *rcard = NULL;
1565
1566 if (dev >= SNDRV_CARDS)
1567 return -ENODEV;
1568
1569 if (!enable[dev]) {
1570 dev++;
1571 return -ENOENT;
1572 }
1573
1574 err = snd_card_new(&op->dev, index[dev], id[dev], THIS_MODULE,
1575 sizeof(struct snd_cs4231), &card);
1576 if (err < 0)
1577 return err;
1578
1579 strcpy(card->driver, "CS4231");
1580 strcpy(card->shortname, "Sun CS4231");
1581
1582 chip = card->private_data;
1583 chip->card = card;
1584
1585 *rcard = card;
1586 return 0;
1587}
1588
1589static int cs4231_attach_finish(struct snd_card *card)
1590{
1591 struct snd_cs4231 *chip = card->private_data;
1592 int err;
1593
1594 err = snd_cs4231_pcm(card);
1595 if (err < 0)
1596 goto out_err;
1597
1598 err = snd_cs4231_mixer(card);
1599 if (err < 0)
1600 goto out_err;
1601
1602 err = snd_cs4231_timer(card);
1603 if (err < 0)
1604 goto out_err;
1605
1606 err = snd_card_register(card);
1607 if (err < 0)
1608 goto out_err;
1609
1610 dev_set_drvdata(&chip->op->dev, chip);
1611
1612 dev++;
1613 return 0;
1614
1615out_err:
1616 snd_card_free(card);
1617 return err;
1618}
1619
1620#ifdef SBUS_SUPPORT
1621
1622static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id)
1623{
1624 unsigned long flags;
1625 unsigned char status;
1626 u32 csr;
1627 struct snd_cs4231 *chip = dev_id;
1628
1629
1630 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ))
1631 return IRQ_NONE;
1632
1633
1634 csr = sbus_readl(chip->port + APCCSR);
1635
1636 sbus_writel(csr, chip->port + APCCSR);
1637
1638 if ((csr & APC_PDMA_READY) &&
1639 (csr & APC_PLAY_INT) &&
1640 (csr & APC_XINT_PNVA) &&
1641 !(csr & APC_XINT_EMPT))
1642 snd_cs4231_play_callback(chip);
1643
1644 if ((csr & APC_CDMA_READY) &&
1645 (csr & APC_CAPT_INT) &&
1646 (csr & APC_XINT_CNVA) &&
1647 !(csr & APC_XINT_EMPT))
1648 snd_cs4231_capture_callback(chip);
1649
1650 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1651
1652 if (status & CS4231_TIMER_IRQ) {
1653 if (chip->timer)
1654 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1655 }
1656
1657 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1658 snd_cs4231_overrange(chip);
1659
1660
1661 spin_lock_irqsave(&chip->lock, flags);
1662 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1663 spin_unlock_irqrestore(&chip->lock, flags);
1664
1665 return IRQ_HANDLED;
1666}
1667
1668
1669
1670
1671
1672static int sbus_dma_request(struct cs4231_dma_control *dma_cont,
1673 dma_addr_t bus_addr, size_t len)
1674{
1675 unsigned long flags;
1676 u32 test, csr;
1677 int err;
1678 struct sbus_dma_info *base = &dma_cont->sbus_info;
1679
1680 if (len >= (1 << 24))
1681 return -EINVAL;
1682 spin_lock_irqsave(&base->lock, flags);
1683 csr = sbus_readl(base->regs + APCCSR);
1684 err = -EINVAL;
1685 test = APC_CDMA_READY;
1686 if (base->dir == APC_PLAY)
1687 test = APC_PDMA_READY;
1688 if (!(csr & test))
1689 goto out;
1690 err = -EBUSY;
1691 test = APC_XINT_CNVA;
1692 if (base->dir == APC_PLAY)
1693 test = APC_XINT_PNVA;
1694 if (!(csr & test))
1695 goto out;
1696 err = 0;
1697 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1698 sbus_writel(len, base->regs + base->dir + APCNC);
1699out:
1700 spin_unlock_irqrestore(&base->lock, flags);
1701 return err;
1702}
1703
1704static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1705{
1706 unsigned long flags;
1707 u32 csr, test;
1708 struct sbus_dma_info *base = &dma_cont->sbus_info;
1709
1710 spin_lock_irqsave(&base->lock, flags);
1711 csr = sbus_readl(base->regs + APCCSR);
1712 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1713 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1714 APC_XINT_PENA;
1715 if (base->dir == APC_RECORD)
1716 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1717 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1718 csr |= test;
1719 sbus_writel(csr, base->regs + APCCSR);
1720 spin_unlock_irqrestore(&base->lock, flags);
1721}
1722
1723static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1724{
1725 unsigned long flags;
1726 u32 csr, shift;
1727 struct sbus_dma_info *base = &dma_cont->sbus_info;
1728
1729 spin_lock_irqsave(&base->lock, flags);
1730 if (!on) {
1731 sbus_writel(0, base->regs + base->dir + APCNC);
1732 sbus_writel(0, base->regs + base->dir + APCNVA);
1733 if (base->dir == APC_PLAY) {
1734 sbus_writel(0, base->regs + base->dir + APCC);
1735 sbus_writel(0, base->regs + base->dir + APCVA);
1736 }
1737
1738 udelay(1200);
1739 }
1740 csr = sbus_readl(base->regs + APCCSR);
1741 shift = 0;
1742 if (base->dir == APC_PLAY)
1743 shift = 1;
1744 if (on)
1745 csr &= ~(APC_CPAUSE << shift);
1746 else
1747 csr |= (APC_CPAUSE << shift);
1748 sbus_writel(csr, base->regs + APCCSR);
1749 if (on)
1750 csr |= (APC_CDMA_READY << shift);
1751 else
1752 csr &= ~(APC_CDMA_READY << shift);
1753 sbus_writel(csr, base->regs + APCCSR);
1754
1755 spin_unlock_irqrestore(&base->lock, flags);
1756}
1757
1758static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1759{
1760 struct sbus_dma_info *base = &dma_cont->sbus_info;
1761
1762 return sbus_readl(base->regs + base->dir + APCVA);
1763}
1764
1765
1766
1767
1768
1769static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1770{
1771 struct platform_device *op = chip->op;
1772
1773 if (chip->irq[0])
1774 free_irq(chip->irq[0], chip);
1775
1776 if (chip->port)
1777 of_iounmap(&op->resource[0], chip->port, chip->regs_size);
1778
1779 return 0;
1780}
1781
1782static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1783{
1784 struct snd_cs4231 *cp = device->device_data;
1785
1786 return snd_cs4231_sbus_free(cp);
1787}
1788
1789static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1790 .dev_free = snd_cs4231_sbus_dev_free,
1791};
1792
1793static int snd_cs4231_sbus_create(struct snd_card *card,
1794 struct platform_device *op,
1795 int dev)
1796{
1797 struct snd_cs4231 *chip = card->private_data;
1798 int err;
1799
1800 spin_lock_init(&chip->lock);
1801 spin_lock_init(&chip->c_dma.sbus_info.lock);
1802 spin_lock_init(&chip->p_dma.sbus_info.lock);
1803 mutex_init(&chip->mce_mutex);
1804 mutex_init(&chip->open_mutex);
1805 chip->op = op;
1806 chip->regs_size = resource_size(&op->resource[0]);
1807 memcpy(&chip->image, &snd_cs4231_original_image,
1808 sizeof(snd_cs4231_original_image));
1809
1810 chip->port = of_ioremap(&op->resource[0], 0,
1811 chip->regs_size, "cs4231");
1812 if (!chip->port) {
1813 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1814 return -EIO;
1815 }
1816
1817 chip->c_dma.sbus_info.regs = chip->port;
1818 chip->p_dma.sbus_info.regs = chip->port;
1819 chip->c_dma.sbus_info.dir = APC_RECORD;
1820 chip->p_dma.sbus_info.dir = APC_PLAY;
1821
1822 chip->p_dma.prepare = sbus_dma_prepare;
1823 chip->p_dma.enable = sbus_dma_enable;
1824 chip->p_dma.request = sbus_dma_request;
1825 chip->p_dma.address = sbus_dma_addr;
1826
1827 chip->c_dma.prepare = sbus_dma_prepare;
1828 chip->c_dma.enable = sbus_dma_enable;
1829 chip->c_dma.request = sbus_dma_request;
1830 chip->c_dma.address = sbus_dma_addr;
1831
1832 if (request_irq(op->archdata.irqs[0], snd_cs4231_sbus_interrupt,
1833 IRQF_SHARED, "cs4231", chip)) {
1834 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
1835 dev, op->archdata.irqs[0]);
1836 snd_cs4231_sbus_free(chip);
1837 return -EBUSY;
1838 }
1839 chip->irq[0] = op->archdata.irqs[0];
1840
1841 if (snd_cs4231_probe(chip) < 0) {
1842 snd_cs4231_sbus_free(chip);
1843 return -ENODEV;
1844 }
1845 snd_cs4231_init(chip);
1846
1847 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1848 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
1849 snd_cs4231_sbus_free(chip);
1850 return err;
1851 }
1852
1853 return 0;
1854}
1855
1856static int cs4231_sbus_probe(struct platform_device *op)
1857{
1858 struct resource *rp = &op->resource[0];
1859 struct snd_card *card;
1860 int err;
1861
1862 err = cs4231_attach_begin(op, &card);
1863 if (err)
1864 return err;
1865
1866 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
1867 card->shortname,
1868 rp->flags & 0xffL,
1869 (unsigned long long)rp->start,
1870 op->archdata.irqs[0]);
1871
1872 err = snd_cs4231_sbus_create(card, op, dev);
1873 if (err < 0) {
1874 snd_card_free(card);
1875 return err;
1876 }
1877
1878 return cs4231_attach_finish(card);
1879}
1880#endif
1881
1882#ifdef EBUS_SUPPORT
1883
1884static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event,
1885 void *cookie)
1886{
1887 struct snd_cs4231 *chip = cookie;
1888
1889 snd_cs4231_play_callback(chip);
1890}
1891
1892static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p,
1893 int event, void *cookie)
1894{
1895 struct snd_cs4231 *chip = cookie;
1896
1897 snd_cs4231_capture_callback(chip);
1898}
1899
1900
1901
1902
1903
1904static int _ebus_dma_request(struct cs4231_dma_control *dma_cont,
1905 dma_addr_t bus_addr, size_t len)
1906{
1907 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
1908}
1909
1910static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1911{
1912 ebus_dma_enable(&dma_cont->ebus_info, on);
1913}
1914
1915static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
1916{
1917 ebus_dma_prepare(&dma_cont->ebus_info, dir);
1918}
1919
1920static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
1921{
1922 return ebus_dma_addr(&dma_cont->ebus_info);
1923}
1924
1925
1926
1927
1928
1929static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
1930{
1931 struct platform_device *op = chip->op;
1932
1933 if (chip->c_dma.ebus_info.regs) {
1934 ebus_dma_unregister(&chip->c_dma.ebus_info);
1935 of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10);
1936 }
1937 if (chip->p_dma.ebus_info.regs) {
1938 ebus_dma_unregister(&chip->p_dma.ebus_info);
1939 of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10);
1940 }
1941
1942 if (chip->port)
1943 of_iounmap(&op->resource[0], chip->port, 0x10);
1944
1945 return 0;
1946}
1947
1948static int snd_cs4231_ebus_dev_free(struct snd_device *device)
1949{
1950 struct snd_cs4231 *cp = device->device_data;
1951
1952 return snd_cs4231_ebus_free(cp);
1953}
1954
1955static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
1956 .dev_free = snd_cs4231_ebus_dev_free,
1957};
1958
1959static int snd_cs4231_ebus_create(struct snd_card *card,
1960 struct platform_device *op,
1961 int dev)
1962{
1963 struct snd_cs4231 *chip = card->private_data;
1964 int err;
1965
1966 spin_lock_init(&chip->lock);
1967 spin_lock_init(&chip->c_dma.ebus_info.lock);
1968 spin_lock_init(&chip->p_dma.ebus_info.lock);
1969 mutex_init(&chip->mce_mutex);
1970 mutex_init(&chip->open_mutex);
1971 chip->flags |= CS4231_FLAG_EBUS;
1972 chip->op = op;
1973 memcpy(&chip->image, &snd_cs4231_original_image,
1974 sizeof(snd_cs4231_original_image));
1975 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
1976 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1977 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
1978 chip->c_dma.ebus_info.client_cookie = chip;
1979 chip->c_dma.ebus_info.irq = op->archdata.irqs[0];
1980 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
1981 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
1982 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
1983 chip->p_dma.ebus_info.client_cookie = chip;
1984 chip->p_dma.ebus_info.irq = op->archdata.irqs[1];
1985
1986 chip->p_dma.prepare = _ebus_dma_prepare;
1987 chip->p_dma.enable = _ebus_dma_enable;
1988 chip->p_dma.request = _ebus_dma_request;
1989 chip->p_dma.address = _ebus_dma_addr;
1990
1991 chip->c_dma.prepare = _ebus_dma_prepare;
1992 chip->c_dma.enable = _ebus_dma_enable;
1993 chip->c_dma.request = _ebus_dma_request;
1994 chip->c_dma.address = _ebus_dma_addr;
1995
1996 chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231");
1997 chip->p_dma.ebus_info.regs =
1998 of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma");
1999 chip->c_dma.ebus_info.regs =
2000 of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma");
2001 if (!chip->port || !chip->p_dma.ebus_info.regs ||
2002 !chip->c_dma.ebus_info.regs) {
2003 snd_cs4231_ebus_free(chip);
2004 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2005 return -EIO;
2006 }
2007
2008 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2009 snd_cs4231_ebus_free(chip);
2010 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n",
2011 dev);
2012 return -EBUSY;
2013 }
2014 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2015 snd_cs4231_ebus_free(chip);
2016 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n",
2017 dev);
2018 return -EBUSY;
2019 }
2020
2021 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2022 snd_cs4231_ebus_free(chip);
2023 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n",
2024 dev);
2025 return -EBUSY;
2026 }
2027 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2028 snd_cs4231_ebus_free(chip);
2029 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2030 return -EBUSY;
2031 }
2032
2033 if (snd_cs4231_probe(chip) < 0) {
2034 snd_cs4231_ebus_free(chip);
2035 return -ENODEV;
2036 }
2037 snd_cs4231_init(chip);
2038
2039 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2040 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2041 snd_cs4231_ebus_free(chip);
2042 return err;
2043 }
2044
2045 return 0;
2046}
2047
2048static int cs4231_ebus_probe(struct platform_device *op)
2049{
2050 struct snd_card *card;
2051 int err;
2052
2053 err = cs4231_attach_begin(op, &card);
2054 if (err)
2055 return err;
2056
2057 sprintf(card->longname, "%s at 0x%llx, irq %d",
2058 card->shortname,
2059 op->resource[0].start,
2060 op->archdata.irqs[0]);
2061
2062 err = snd_cs4231_ebus_create(card, op, dev);
2063 if (err < 0) {
2064 snd_card_free(card);
2065 return err;
2066 }
2067
2068 return cs4231_attach_finish(card);
2069}
2070#endif
2071
2072static int cs4231_probe(struct platform_device *op)
2073{
2074#ifdef EBUS_SUPPORT
2075 if (of_node_name_eq(op->dev.of_node->parent, "ebus"))
2076 return cs4231_ebus_probe(op);
2077#endif
2078#ifdef SBUS_SUPPORT
2079 if (of_node_name_eq(op->dev.of_node->parent, "sbus") ||
2080 of_node_name_eq(op->dev.of_node->parent, "sbi"))
2081 return cs4231_sbus_probe(op);
2082#endif
2083 return -ENODEV;
2084}
2085
2086static int cs4231_remove(struct platform_device *op)
2087{
2088 struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
2089
2090 snd_card_free(chip->card);
2091
2092 return 0;
2093}
2094
2095static const struct of_device_id cs4231_match[] = {
2096 {
2097 .name = "SUNW,CS4231",
2098 },
2099 {
2100 .name = "audio",
2101 .compatible = "SUNW,CS4231",
2102 },
2103 {},
2104};
2105
2106MODULE_DEVICE_TABLE(of, cs4231_match);
2107
2108static struct platform_driver cs4231_driver = {
2109 .driver = {
2110 .name = "audio",
2111 .of_match_table = cs4231_match,
2112 },
2113 .probe = cs4231_probe,
2114 .remove = cs4231_remove,
2115};
2116
2117module_platform_driver(cs4231_driver);
2118
