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Merge master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-upstream
[deliverable/linux.git] / sound / sparc / cs4231.c
1 /*
2 * Driver for CS4231 sound chips found on Sparcs.
3 * Copyright (C) 2002 David S. Miller <davem@redhat.com>
4 *
5 * Based entirely upon drivers/sbus/audio/cs4231.c which is:
6 * Copyright (C) 1996, 1997, 1998, 1998 Derrick J Brashear (shadow@andrew.cmu.edu)
7 * and also sound/isa/cs423x/cs4231_lib.c which is:
8 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
9 */
10
11 #include <linux/config.h>
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/slab.h>
15 #include <linux/delay.h>
16 #include <linux/init.h>
17 #include <linux/interrupt.h>
18 #include <linux/moduleparam.h>
19
20 #include <sound/driver.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/info.h>
24 #include <sound/control.h>
25 #include <sound/timer.h>
26 #include <sound/initval.h>
27 #include <sound/pcm_params.h>
28
29 #include <asm/io.h>
30 #include <asm/irq.h>
31
32 #ifdef CONFIG_SBUS
33 #define SBUS_SUPPORT
34 #endif
35
36 #ifdef SBUS_SUPPORT
37 #include <asm/sbus.h>
38 #endif
39
40 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
41 #define EBUS_SUPPORT
42 #endif
43
44 #ifdef EBUS_SUPPORT
45 #include <linux/pci.h>
46 #include <asm/ebus.h>
47 #endif
48
49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
52
53 module_param_array(index, int, NULL, 0444);
54 MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
55 module_param_array(id, charp, NULL, 0444);
56 MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
57 module_param_array(enable, bool, NULL, 0444);
58 MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
59 MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller");
60 MODULE_DESCRIPTION("Sun CS4231");
61 MODULE_LICENSE("GPL");
62 MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
63
64 #ifdef SBUS_SUPPORT
65 struct sbus_dma_info {
66 spinlock_t lock;
67 int dir;
68 void __iomem *regs;
69 };
70 #endif
71
72 struct snd_cs4231;
73 struct cs4231_dma_control {
74 void (*prepare)(struct cs4231_dma_control *dma_cont, int dir);
75 void (*enable)(struct cs4231_dma_control *dma_cont, int on);
76 int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len);
77 unsigned int (*address)(struct cs4231_dma_control *dma_cont);
78 void (*reset)(struct snd_cs4231 *chip);
79 void (*preallocate)(struct snd_cs4231 *chip, struct snd_pcm *pcm);
80 #ifdef EBUS_SUPPORT
81 struct ebus_dma_info ebus_info;
82 #endif
83 #ifdef SBUS_SUPPORT
84 struct sbus_dma_info sbus_info;
85 #endif
86 };
87
88 struct snd_cs4231 {
89 spinlock_t lock;
90 void __iomem *port;
91
92 struct cs4231_dma_control p_dma;
93 struct cs4231_dma_control c_dma;
94
95 u32 flags;
96 #define CS4231_FLAG_EBUS 0x00000001
97 #define CS4231_FLAG_PLAYBACK 0x00000002
98 #define CS4231_FLAG_CAPTURE 0x00000004
99
100 struct snd_card *card;
101 struct snd_pcm *pcm;
102 struct snd_pcm_substream *playback_substream;
103 unsigned int p_periods_sent;
104 struct snd_pcm_substream *capture_substream;
105 unsigned int c_periods_sent;
106 struct snd_timer *timer;
107
108 unsigned short mode;
109 #define CS4231_MODE_NONE 0x0000
110 #define CS4231_MODE_PLAY 0x0001
111 #define CS4231_MODE_RECORD 0x0002
112 #define CS4231_MODE_TIMER 0x0004
113 #define CS4231_MODE_OPEN (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)
114
115 unsigned char image[32]; /* registers image */
116 int mce_bit;
117 int calibrate_mute;
118 struct semaphore mce_mutex;
119 struct semaphore open_mutex;
120
121 union {
122 #ifdef SBUS_SUPPORT
123 struct sbus_dev *sdev;
124 #endif
125 #ifdef EBUS_SUPPORT
126 struct pci_dev *pdev;
127 #endif
128 } dev_u;
129 unsigned int irq[2];
130 unsigned int regs_size;
131 struct snd_cs4231 *next;
132 };
133
134 static struct snd_cs4231 *cs4231_list;
135
136 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for
137 * now.... -DaveM
138 */
139
140 /* IO ports */
141
142 #define CS4231P(chip, x) ((chip)->port + c_d_c_CS4231##x)
143
144 /* XXX offsets are different than PC ISA chips... */
145 #define c_d_c_CS4231REGSEL 0x0
146 #define c_d_c_CS4231REG 0x4
147 #define c_d_c_CS4231STATUS 0x8
148 #define c_d_c_CS4231PIO 0xc
149
150 /* codec registers */
151
152 #define CS4231_LEFT_INPUT 0x00 /* left input control */
153 #define CS4231_RIGHT_INPUT 0x01 /* right input control */
154 #define CS4231_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */
155 #define CS4231_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */
156 #define CS4231_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */
157 #define CS4231_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */
158 #define CS4231_LEFT_OUTPUT 0x06 /* left output control register */
159 #define CS4231_RIGHT_OUTPUT 0x07 /* right output control register */
160 #define CS4231_PLAYBK_FORMAT 0x08 /* clock and data format - playback - bits 7-0 MCE */
161 #define CS4231_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */
162 #define CS4231_PIN_CTRL 0x0a /* pin control */
163 #define CS4231_TEST_INIT 0x0b /* test and initialization */
164 #define CS4231_MISC_INFO 0x0c /* miscellaneaous information */
165 #define CS4231_LOOPBACK 0x0d /* loopback control */
166 #define CS4231_PLY_UPR_CNT 0x0e /* playback upper base count */
167 #define CS4231_PLY_LWR_CNT 0x0f /* playback lower base count */
168 #define CS4231_ALT_FEATURE_1 0x10 /* alternate #1 feature enable */
169 #define CS4231_ALT_FEATURE_2 0x11 /* alternate #2 feature enable */
170 #define CS4231_LEFT_LINE_IN 0x12 /* left line input control */
171 #define CS4231_RIGHT_LINE_IN 0x13 /* right line input control */
172 #define CS4231_TIMER_LOW 0x14 /* timer low byte */
173 #define CS4231_TIMER_HIGH 0x15 /* timer high byte */
174 #define CS4231_LEFT_MIC_INPUT 0x16 /* left MIC input control register (InterWave only) */
175 #define CS4231_RIGHT_MIC_INPUT 0x17 /* right MIC input control register (InterWave only) */
176 #define CS4236_EXT_REG 0x17 /* extended register access */
177 #define CS4231_IRQ_STATUS 0x18 /* irq status register */
178 #define CS4231_LINE_LEFT_OUTPUT 0x19 /* left line output control register (InterWave only) */
179 #define CS4231_VERSION 0x19 /* CS4231(A) - version values */
180 #define CS4231_MONO_CTRL 0x1a /* mono input/output control */
181 #define CS4231_LINE_RIGHT_OUTPUT 0x1b /* right line output control register (InterWave only) */
182 #define CS4235_LEFT_MASTER 0x1b /* left master output control */
183 #define CS4231_REC_FORMAT 0x1c /* clock and data format - record - bits 7-0 MCE */
184 #define CS4231_PLY_VAR_FREQ 0x1d /* playback variable frequency */
185 #define CS4235_RIGHT_MASTER 0x1d /* right master output control */
186 #define CS4231_REC_UPR_CNT 0x1e /* record upper count */
187 #define CS4231_REC_LWR_CNT 0x1f /* record lower count */
188
189 /* definitions for codec register select port - CODECP( REGSEL ) */
190
191 #define CS4231_INIT 0x80 /* CODEC is initializing */
192 #define CS4231_MCE 0x40 /* mode change enable */
193 #define CS4231_TRD 0x20 /* transfer request disable */
194
195 /* definitions for codec status register - CODECP( STATUS ) */
196
197 #define CS4231_GLOBALIRQ 0x01 /* IRQ is active */
198
199 /* definitions for codec irq status - CS4231_IRQ_STATUS */
200
201 #define CS4231_PLAYBACK_IRQ 0x10
202 #define CS4231_RECORD_IRQ 0x20
203 #define CS4231_TIMER_IRQ 0x40
204 #define CS4231_ALL_IRQS 0x70
205 #define CS4231_REC_UNDERRUN 0x08
206 #define CS4231_REC_OVERRUN 0x04
207 #define CS4231_PLY_OVERRUN 0x02
208 #define CS4231_PLY_UNDERRUN 0x01
209
210 /* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */
211
212 #define CS4231_ENABLE_MIC_GAIN 0x20
213
214 #define CS4231_MIXS_LINE 0x00
215 #define CS4231_MIXS_AUX1 0x40
216 #define CS4231_MIXS_MIC 0x80
217 #define CS4231_MIXS_ALL 0xc0
218
219 /* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */
220
221 #define CS4231_LINEAR_8 0x00 /* 8-bit unsigned data */
222 #define CS4231_ALAW_8 0x60 /* 8-bit A-law companded */
223 #define CS4231_ULAW_8 0x20 /* 8-bit U-law companded */
224 #define CS4231_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */
225 #define CS4231_LINEAR_16_BIG 0xc0 /* 16-bit twos complement data - big endian */
226 #define CS4231_ADPCM_16 0xa0 /* 16-bit ADPCM */
227 #define CS4231_STEREO 0x10 /* stereo mode */
228 /* bits 3-1 define frequency divisor */
229 #define CS4231_XTAL1 0x00 /* 24.576 crystal */
230 #define CS4231_XTAL2 0x01 /* 16.9344 crystal */
231
232 /* definitions for interface control register - CS4231_IFACE_CTRL */
233
234 #define CS4231_RECORD_PIO 0x80 /* record PIO enable */
235 #define CS4231_PLAYBACK_PIO 0x40 /* playback PIO enable */
236 #define CS4231_CALIB_MODE 0x18 /* calibration mode bits */
237 #define CS4231_AUTOCALIB 0x08 /* auto calibrate */
238 #define CS4231_SINGLE_DMA 0x04 /* use single DMA channel */
239 #define CS4231_RECORD_ENABLE 0x02 /* record enable */
240 #define CS4231_PLAYBACK_ENABLE 0x01 /* playback enable */
241
242 /* definitions for pin control register - CS4231_PIN_CTRL */
243
244 #define CS4231_IRQ_ENABLE 0x02 /* enable IRQ */
245 #define CS4231_XCTL1 0x40 /* external control #1 */
246 #define CS4231_XCTL0 0x80 /* external control #0 */
247
248 /* definitions for test and init register - CS4231_TEST_INIT */
249
250 #define CS4231_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */
251 #define CS4231_DMA_REQUEST 0x10 /* DMA request in progress */
252
253 /* definitions for misc control register - CS4231_MISC_INFO */
254
255 #define CS4231_MODE2 0x40 /* MODE 2 */
256 #define CS4231_IW_MODE3 0x6c /* MODE 3 - InterWave enhanced mode */
257 #define CS4231_4236_MODE3 0xe0 /* MODE 3 - CS4236+ enhanced mode */
258
259 /* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */
260
261 #define CS4231_DACZ 0x01 /* zero DAC when underrun */
262 #define CS4231_TIMER_ENABLE 0x40 /* codec timer enable */
263 #define CS4231_OLB 0x80 /* output level bit */
264
265 /* SBUS DMA register defines. */
266
267 #define APCCSR 0x10UL /* APC DMA CSR */
268 #define APCCVA 0x20UL /* APC Capture DMA Address */
269 #define APCCC 0x24UL /* APC Capture Count */
270 #define APCCNVA 0x28UL /* APC Capture DMA Next Address */
271 #define APCCNC 0x2cUL /* APC Capture Next Count */
272 #define APCPVA 0x30UL /* APC Play DMA Address */
273 #define APCPC 0x34UL /* APC Play Count */
274 #define APCPNVA 0x38UL /* APC Play DMA Next Address */
275 #define APCPNC 0x3cUL /* APC Play Next Count */
276
277 /* Defines for SBUS DMA-routines */
278
279 #define APCVA 0x0UL /* APC DMA Address */
280 #define APCC 0x4UL /* APC Count */
281 #define APCNVA 0x8UL /* APC DMA Next Address */
282 #define APCNC 0xcUL /* APC Next Count */
283 #define APC_PLAY 0x30UL /* Play registers start at 0x30 */
284 #define APC_RECORD 0x20UL /* Record registers start at 0x20 */
285
286 /* APCCSR bits */
287
288 #define APC_INT_PENDING 0x800000 /* Interrupt Pending */
289 #define APC_PLAY_INT 0x400000 /* Playback interrupt */
290 #define APC_CAPT_INT 0x200000 /* Capture interrupt */
291 #define APC_GENL_INT 0x100000 /* General interrupt */
292 #define APC_XINT_ENA 0x80000 /* General ext int. enable */
293 #define APC_XINT_PLAY 0x40000 /* Playback ext intr */
294 #define APC_XINT_CAPT 0x20000 /* Capture ext intr */
295 #define APC_XINT_GENL 0x10000 /* Error ext intr */
296 #define APC_XINT_EMPT 0x8000 /* Pipe empty interrupt (0 write to pva) */
297 #define APC_XINT_PEMP 0x4000 /* Play pipe empty (pva and pnva not set) */
298 #define APC_XINT_PNVA 0x2000 /* Playback NVA dirty */
299 #define APC_XINT_PENA 0x1000 /* play pipe empty Int enable */
300 #define APC_XINT_COVF 0x800 /* Cap data dropped on floor */
301 #define APC_XINT_CNVA 0x400 /* Capture NVA dirty */
302 #define APC_XINT_CEMP 0x200 /* Capture pipe empty (cva and cnva not set) */
303 #define APC_XINT_CENA 0x100 /* Cap. pipe empty int enable */
304 #define APC_PPAUSE 0x80 /* Pause the play DMA */
305 #define APC_CPAUSE 0x40 /* Pause the capture DMA */
306 #define APC_CDC_RESET 0x20 /* CODEC RESET */
307 #define APC_PDMA_READY 0x08 /* Play DMA Go */
308 #define APC_CDMA_READY 0x04 /* Capture DMA Go */
309 #define APC_CHIP_RESET 0x01 /* Reset the chip */
310
311 /* EBUS DMA register offsets */
312
313 #define EBDMA_CSR 0x00UL /* Control/Status */
314 #define EBDMA_ADDR 0x04UL /* DMA Address */
315 #define EBDMA_COUNT 0x08UL /* DMA Count */
316
317 /*
318 * Some variables
319 */
320
321 static unsigned char freq_bits[14] = {
322 /* 5510 */ 0x00 | CS4231_XTAL2,
323 /* 6620 */ 0x0E | CS4231_XTAL2,
324 /* 8000 */ 0x00 | CS4231_XTAL1,
325 /* 9600 */ 0x0E | CS4231_XTAL1,
326 /* 11025 */ 0x02 | CS4231_XTAL2,
327 /* 16000 */ 0x02 | CS4231_XTAL1,
328 /* 18900 */ 0x04 | CS4231_XTAL2,
329 /* 22050 */ 0x06 | CS4231_XTAL2,
330 /* 27042 */ 0x04 | CS4231_XTAL1,
331 /* 32000 */ 0x06 | CS4231_XTAL1,
332 /* 33075 */ 0x0C | CS4231_XTAL2,
333 /* 37800 */ 0x08 | CS4231_XTAL2,
334 /* 44100 */ 0x0A | CS4231_XTAL2,
335 /* 48000 */ 0x0C | CS4231_XTAL1
336 };
337
338 static unsigned int rates[14] = {
339 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
340 27042, 32000, 33075, 37800, 44100, 48000
341 };
342
343 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
344 .count = 14,
345 .list = rates,
346 };
347
348 static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
349 {
350 return snd_pcm_hw_constraint_list(runtime, 0,
351 SNDRV_PCM_HW_PARAM_RATE,
352 &hw_constraints_rates);
353 }
354
355 static unsigned char snd_cs4231_original_image[32] =
356 {
357 0x00, /* 00/00 - lic */
358 0x00, /* 01/01 - ric */
359 0x9f, /* 02/02 - la1ic */
360 0x9f, /* 03/03 - ra1ic */
361 0x9f, /* 04/04 - la2ic */
362 0x9f, /* 05/05 - ra2ic */
363 0xbf, /* 06/06 - loc */
364 0xbf, /* 07/07 - roc */
365 0x20, /* 08/08 - pdfr */
366 CS4231_AUTOCALIB, /* 09/09 - ic */
367 0x00, /* 0a/10 - pc */
368 0x00, /* 0b/11 - ti */
369 CS4231_MODE2, /* 0c/12 - mi */
370 0x00, /* 0d/13 - lbc */
371 0x00, /* 0e/14 - pbru */
372 0x00, /* 0f/15 - pbrl */
373 0x80, /* 10/16 - afei */
374 0x01, /* 11/17 - afeii */
375 0x9f, /* 12/18 - llic */
376 0x9f, /* 13/19 - rlic */
377 0x00, /* 14/20 - tlb */
378 0x00, /* 15/21 - thb */
379 0x00, /* 16/22 - la3mic/reserved */
380 0x00, /* 17/23 - ra3mic/reserved */
381 0x00, /* 18/24 - afs */
382 0x00, /* 19/25 - lamoc/version */
383 0x00, /* 1a/26 - mioc */
384 0x00, /* 1b/27 - ramoc/reserved */
385 0x20, /* 1c/28 - cdfr */
386 0x00, /* 1d/29 - res4 */
387 0x00, /* 1e/30 - cbru */
388 0x00, /* 1f/31 - cbrl */
389 };
390
391 static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
392 {
393 #ifdef EBUS_SUPPORT
394 if (cp->flags & CS4231_FLAG_EBUS) {
395 return readb(reg_addr);
396 } else {
397 #endif
398 #ifdef SBUS_SUPPORT
399 return sbus_readb(reg_addr);
400 #endif
401 #ifdef EBUS_SUPPORT
402 }
403 #endif
404 }
405
406 static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, void __iomem *reg_addr)
407 {
408 #ifdef EBUS_SUPPORT
409 if (cp->flags & CS4231_FLAG_EBUS) {
410 return writeb(val, reg_addr);
411 } else {
412 #endif
413 #ifdef SBUS_SUPPORT
414 return sbus_writeb(val, reg_addr);
415 #endif
416 #ifdef EBUS_SUPPORT
417 }
418 #endif
419 }
420
421 /*
422 * Basic I/O functions
423 */
424
425 static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
426 unsigned char mask, unsigned char value)
427 {
428 int timeout;
429 unsigned char tmp;
430
431 for (timeout = 250;
432 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
433 timeout--)
434 udelay(100);
435 #ifdef CONFIG_SND_DEBUG
436 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
437 snd_printdd("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
438 #endif
439 if (chip->calibrate_mute) {
440 chip->image[reg] &= mask;
441 chip->image[reg] |= value;
442 } else {
443 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
444 mb();
445 tmp = (chip->image[reg] & mask) | value;
446 __cs4231_writeb(chip, tmp, CS4231P(chip, REG));
447 chip->image[reg] = tmp;
448 mb();
449 }
450 }
451
452 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
453 {
454 int timeout;
455
456 for (timeout = 250;
457 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
458 timeout--)
459 udelay(100);
460 #ifdef CONFIG_SND_DEBUG
461 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
462 snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
463 #endif
464 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
465 __cs4231_writeb(chip, value, CS4231P(chip, REG));
466 mb();
467 }
468
469 static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
470 {
471 int timeout;
472
473 for (timeout = 250;
474 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
475 timeout--)
476 udelay(100);
477 #ifdef CONFIG_SND_DEBUG
478 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
479 snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
480 #endif
481 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
482 __cs4231_writeb(chip, value, CS4231P(chip, REG));
483 chip->image[reg] = value;
484 mb();
485 }
486
487 static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
488 {
489 int timeout;
490 unsigned char ret;
491
492 for (timeout = 250;
493 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
494 timeout--)
495 udelay(100);
496 #ifdef CONFIG_SND_DEBUG
497 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
498 snd_printdd("in: auto calibration time out - reg = 0x%x\n", reg);
499 #endif
500 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
501 mb();
502 ret = __cs4231_readb(chip, CS4231P(chip, REG));
503 return ret;
504 }
505
506 /*
507 * CS4231 detection / MCE routines
508 */
509
510 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
511 {
512 int timeout;
513
514 /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
515 for (timeout = 5; timeout > 0; timeout--)
516 __cs4231_readb(chip, CS4231P(chip, REGSEL));
517
518 /* end of cleanup sequence */
519 for (timeout = 500;
520 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
521 timeout--)
522 udelay(1000);
523 }
524
525 static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
526 {
527 unsigned long flags;
528 int timeout;
529
530 spin_lock_irqsave(&chip->lock, flags);
531 for (timeout = 250; timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); timeout--)
532 udelay(100);
533 #ifdef CONFIG_SND_DEBUG
534 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
535 snd_printdd("mce_up - auto calibration time out (0)\n");
536 #endif
537 chip->mce_bit |= CS4231_MCE;
538 timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL));
539 if (timeout == 0x80)
540 snd_printdd("mce_up [%p]: serious init problem - codec still busy\n", chip->port);
541 if (!(timeout & CS4231_MCE))
542 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL));
543 spin_unlock_irqrestore(&chip->lock, flags);
544 }
545
546 static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
547 {
548 unsigned long flags;
549 int timeout;
550
551 spin_lock_irqsave(&chip->lock, flags);
552 snd_cs4231_busy_wait(chip);
553 #ifdef CONFIG_SND_DEBUG
554 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
555 snd_printdd("mce_down [%p] - auto calibration time out (0)\n", CS4231P(chip, REGSEL));
556 #endif
557 chip->mce_bit &= ~CS4231_MCE;
558 timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL));
559 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL));
560 if (timeout == 0x80)
561 snd_printdd("mce_down [%p]: serious init problem - codec still busy\n", chip->port);
562 if ((timeout & CS4231_MCE) == 0) {
563 spin_unlock_irqrestore(&chip->lock, flags);
564 return;
565 }
566 snd_cs4231_busy_wait(chip);
567
568 /* calibration process */
569
570 for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
571 udelay(100);
572 if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
573 snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
574 spin_unlock_irqrestore(&chip->lock, flags);
575 return;
576 }
577
578 /* in 10ms increments, check condition, up to 250ms */
579 timeout = 25;
580 while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
581 spin_unlock_irqrestore(&chip->lock, flags);
582 if (--timeout < 0) {
583 snd_printk("mce_down - auto calibration time out (2)\n");
584 return;
585 }
586 msleep(10);
587 spin_lock_irqsave(&chip->lock, flags);
588 }
589
590 /* in 10ms increments, check condition, up to 100ms */
591 timeout = 10;
592 while (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) {
593 spin_unlock_irqrestore(&chip->lock, flags);
594 if (--timeout < 0) {
595 snd_printk("mce_down - auto calibration time out (3)\n");
596 return;
597 }
598 msleep(10);
599 spin_lock_irqsave(&chip->lock, flags);
600 }
601 spin_unlock_irqrestore(&chip->lock, flags);
602 }
603
604 static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
605 struct snd_pcm_substream *substream,
606 unsigned int *periods_sent)
607 {
608 struct snd_pcm_runtime *runtime = substream->runtime;
609
610 while (1) {
611 unsigned int period_size = snd_pcm_lib_period_bytes(substream);
612 unsigned int offset = period_size * (*periods_sent);
613
614 if (period_size >= (1 << 24))
615 BUG();
616
617 if (dma_cont->request(dma_cont, runtime->dma_addr + offset, period_size))
618 return;
619 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
620 }
621 }
622
623 static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
624 unsigned int what, int on)
625 {
626 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
627 struct cs4231_dma_control *dma_cont;
628
629 if (what & CS4231_PLAYBACK_ENABLE) {
630 dma_cont = &chip->p_dma;
631 if (on) {
632 dma_cont->prepare(dma_cont, 0);
633 dma_cont->enable(dma_cont, 1);
634 snd_cs4231_advance_dma(dma_cont,
635 chip->playback_substream,
636 &chip->p_periods_sent);
637 } else {
638 dma_cont->enable(dma_cont, 0);
639 }
640 }
641 if (what & CS4231_RECORD_ENABLE) {
642 dma_cont = &chip->c_dma;
643 if (on) {
644 dma_cont->prepare(dma_cont, 1);
645 dma_cont->enable(dma_cont, 1);
646 snd_cs4231_advance_dma(dma_cont,
647 chip->capture_substream,
648 &chip->c_periods_sent);
649 } else {
650 dma_cont->enable(dma_cont, 0);
651 }
652 }
653 }
654
655 static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
656 {
657 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
658 int result = 0;
659
660 switch (cmd) {
661 case SNDRV_PCM_TRIGGER_START:
662 case SNDRV_PCM_TRIGGER_STOP:
663 {
664 unsigned int what = 0;
665 struct snd_pcm_substream *s;
666 struct list_head *pos;
667 unsigned long flags;
668
669 snd_pcm_group_for_each(pos, substream) {
670 s = snd_pcm_group_substream_entry(pos);
671 if (s == chip->playback_substream) {
672 what |= CS4231_PLAYBACK_ENABLE;
673 snd_pcm_trigger_done(s, substream);
674 } else if (s == chip->capture_substream) {
675 what |= CS4231_RECORD_ENABLE;
676 snd_pcm_trigger_done(s, substream);
677 }
678 }
679
680 spin_lock_irqsave(&chip->lock, flags);
681 if (cmd == SNDRV_PCM_TRIGGER_START) {
682 cs4231_dma_trigger(substream, what, 1);
683 chip->image[CS4231_IFACE_CTRL] |= what;
684 } else {
685 cs4231_dma_trigger(substream, what, 0);
686 chip->image[CS4231_IFACE_CTRL] &= ~what;
687 }
688 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
689 chip->image[CS4231_IFACE_CTRL]);
690 spin_unlock_irqrestore(&chip->lock, flags);
691 break;
692 }
693 default:
694 result = -EINVAL;
695 break;
696 }
697
698 return result;
699 }
700
701 /*
702 * CODEC I/O
703 */
704
705 static unsigned char snd_cs4231_get_rate(unsigned int rate)
706 {
707 int i;
708
709 for (i = 0; i < 14; i++)
710 if (rate == rates[i])
711 return freq_bits[i];
712 // snd_BUG();
713 return freq_bits[13];
714 }
715
716 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, int channels)
717 {
718 unsigned char rformat;
719
720 rformat = CS4231_LINEAR_8;
721 switch (format) {
722 case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break;
723 case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break;
724 case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break;
725 case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break;
726 case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break;
727 }
728 if (channels > 1)
729 rformat |= CS4231_STEREO;
730 return rformat;
731 }
732
733 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
734 {
735 unsigned long flags;
736
737 mute = mute ? 1 : 0;
738 spin_lock_irqsave(&chip->lock, flags);
739 if (chip->calibrate_mute == mute) {
740 spin_unlock_irqrestore(&chip->lock, flags);
741 return;
742 }
743 if (!mute) {
744 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
745 chip->image[CS4231_LEFT_INPUT]);
746 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
747 chip->image[CS4231_RIGHT_INPUT]);
748 snd_cs4231_dout(chip, CS4231_LOOPBACK,
749 chip->image[CS4231_LOOPBACK]);
750 }
751 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
752 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
753 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
754 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
755 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
756 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
757 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
758 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
759 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
760 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
761 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
762 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
763 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
764 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
765 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
766 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
767 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
768 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
769 chip->calibrate_mute = mute;
770 spin_unlock_irqrestore(&chip->lock, flags);
771 }
772
773 static void snd_cs4231_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
774 unsigned char pdfr)
775 {
776 unsigned long flags;
777
778 down(&chip->mce_mutex);
779 snd_cs4231_calibrate_mute(chip, 1);
780
781 snd_cs4231_mce_up(chip);
782
783 spin_lock_irqsave(&chip->lock, flags);
784 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
785 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
786 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
787 pdfr);
788 spin_unlock_irqrestore(&chip->lock, flags);
789
790 snd_cs4231_mce_down(chip);
791
792 snd_cs4231_calibrate_mute(chip, 0);
793 up(&chip->mce_mutex);
794 }
795
796 static void snd_cs4231_capture_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
797 unsigned char cdfr)
798 {
799 unsigned long flags;
800
801 down(&chip->mce_mutex);
802 snd_cs4231_calibrate_mute(chip, 1);
803
804 snd_cs4231_mce_up(chip);
805
806 spin_lock_irqsave(&chip->lock, flags);
807 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
808 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
809 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
810 (cdfr & 0x0f));
811 spin_unlock_irqrestore(&chip->lock, flags);
812 snd_cs4231_mce_down(chip);
813 snd_cs4231_mce_up(chip);
814 spin_lock_irqsave(&chip->lock, flags);
815 }
816 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
817 spin_unlock_irqrestore(&chip->lock, flags);
818
819 snd_cs4231_mce_down(chip);
820
821 snd_cs4231_calibrate_mute(chip, 0);
822 up(&chip->mce_mutex);
823 }
824
825 /*
826 * Timer interface
827 */
828
829 static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
830 {
831 struct snd_cs4231 *chip = snd_timer_chip(timer);
832
833 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
834 }
835
836 static int snd_cs4231_timer_start(struct snd_timer *timer)
837 {
838 unsigned long flags;
839 unsigned int ticks;
840 struct snd_cs4231 *chip = snd_timer_chip(timer);
841
842 spin_lock_irqsave(&chip->lock, flags);
843 ticks = timer->sticks;
844 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
845 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
846 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
847 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
848 chip->image[CS4231_TIMER_HIGH] =
849 (unsigned char) (ticks >> 8));
850 snd_cs4231_out(chip, CS4231_TIMER_LOW,
851 chip->image[CS4231_TIMER_LOW] =
852 (unsigned char) ticks);
853 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
854 chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
855 }
856 spin_unlock_irqrestore(&chip->lock, flags);
857
858 return 0;
859 }
860
861 static int snd_cs4231_timer_stop(struct snd_timer *timer)
862 {
863 unsigned long flags;
864 struct snd_cs4231 *chip = snd_timer_chip(timer);
865
866 spin_lock_irqsave(&chip->lock, flags);
867 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
868 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
869 spin_unlock_irqrestore(&chip->lock, flags);
870
871 return 0;
872 }
873
874 static void __init snd_cs4231_init(struct snd_cs4231 *chip)
875 {
876 unsigned long flags;
877
878 snd_cs4231_mce_down(chip);
879
880 #ifdef SNDRV_DEBUG_MCE
881 snd_printdd("init: (1)\n");
882 #endif
883 snd_cs4231_mce_up(chip);
884 spin_lock_irqsave(&chip->lock, flags);
885 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
886 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
887 CS4231_CALIB_MODE);
888 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
889 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
890 spin_unlock_irqrestore(&chip->lock, flags);
891 snd_cs4231_mce_down(chip);
892
893 #ifdef SNDRV_DEBUG_MCE
894 snd_printdd("init: (2)\n");
895 #endif
896
897 snd_cs4231_mce_up(chip);
898 spin_lock_irqsave(&chip->lock, flags);
899 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
900 spin_unlock_irqrestore(&chip->lock, flags);
901 snd_cs4231_mce_down(chip);
902
903 #ifdef SNDRV_DEBUG_MCE
904 snd_printdd("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
905 #endif
906
907 spin_lock_irqsave(&chip->lock, flags);
908 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
909 spin_unlock_irqrestore(&chip->lock, flags);
910
911 snd_cs4231_mce_up(chip);
912 spin_lock_irqsave(&chip->lock, flags);
913 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
914 spin_unlock_irqrestore(&chip->lock, flags);
915 snd_cs4231_mce_down(chip);
916
917 #ifdef SNDRV_DEBUG_MCE
918 snd_printdd("init: (4)\n");
919 #endif
920
921 snd_cs4231_mce_up(chip);
922 spin_lock_irqsave(&chip->lock, flags);
923 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
924 spin_unlock_irqrestore(&chip->lock, flags);
925 snd_cs4231_mce_down(chip);
926
927 #ifdef SNDRV_DEBUG_MCE
928 snd_printdd("init: (5)\n");
929 #endif
930 }
931
932 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
933 {
934 unsigned long flags;
935
936 down(&chip->open_mutex);
937 if ((chip->mode & mode)) {
938 up(&chip->open_mutex);
939 return -EAGAIN;
940 }
941 if (chip->mode & CS4231_MODE_OPEN) {
942 chip->mode |= mode;
943 up(&chip->open_mutex);
944 return 0;
945 }
946 /* ok. now enable and ack CODEC IRQ */
947 spin_lock_irqsave(&chip->lock, flags);
948 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
949 CS4231_RECORD_IRQ |
950 CS4231_TIMER_IRQ);
951 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
952 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
953 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
954
955 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
956 CS4231_RECORD_IRQ |
957 CS4231_TIMER_IRQ);
958 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
959
960 spin_unlock_irqrestore(&chip->lock, flags);
961
962 chip->mode = mode;
963 up(&chip->open_mutex);
964 return 0;
965 }
966
967 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
968 {
969 unsigned long flags;
970
971 down(&chip->open_mutex);
972 chip->mode &= ~mode;
973 if (chip->mode & CS4231_MODE_OPEN) {
974 up(&chip->open_mutex);
975 return;
976 }
977 snd_cs4231_calibrate_mute(chip, 1);
978
979 /* disable IRQ */
980 spin_lock_irqsave(&chip->lock, flags);
981 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
982 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
983 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
984
985 /* now disable record & playback */
986
987 if (chip->image[CS4231_IFACE_CTRL] &
988 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
989 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
990 spin_unlock_irqrestore(&chip->lock, flags);
991 snd_cs4231_mce_up(chip);
992 spin_lock_irqsave(&chip->lock, flags);
993 chip->image[CS4231_IFACE_CTRL] &=
994 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
995 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
996 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
997 spin_unlock_irqrestore(&chip->lock, flags);
998 snd_cs4231_mce_down(chip);
999 spin_lock_irqsave(&chip->lock, flags);
1000 }
1001
1002 /* clear IRQ again */
1003 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
1004 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1005 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1006 spin_unlock_irqrestore(&chip->lock, flags);
1007
1008 snd_cs4231_calibrate_mute(chip, 0);
1009
1010 chip->mode = 0;
1011 up(&chip->open_mutex);
1012 }
1013
1014 /*
1015 * timer open/close
1016 */
1017
1018 static int snd_cs4231_timer_open(struct snd_timer *timer)
1019 {
1020 struct snd_cs4231 *chip = snd_timer_chip(timer);
1021 snd_cs4231_open(chip, CS4231_MODE_TIMER);
1022 return 0;
1023 }
1024
1025 static int snd_cs4231_timer_close(struct snd_timer * timer)
1026 {
1027 struct snd_cs4231 *chip = snd_timer_chip(timer);
1028 snd_cs4231_close(chip, CS4231_MODE_TIMER);
1029 return 0;
1030 }
1031
1032 static struct snd_timer_hardware snd_cs4231_timer_table =
1033 {
1034 .flags = SNDRV_TIMER_HW_AUTO,
1035 .resolution = 9945,
1036 .ticks = 65535,
1037 .open = snd_cs4231_timer_open,
1038 .close = snd_cs4231_timer_close,
1039 .c_resolution = snd_cs4231_timer_resolution,
1040 .start = snd_cs4231_timer_start,
1041 .stop = snd_cs4231_timer_stop,
1042 };
1043
1044 /*
1045 * ok.. exported functions..
1046 */
1047
1048 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
1049 struct snd_pcm_hw_params *hw_params)
1050 {
1051 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1052 unsigned char new_pdfr;
1053 int err;
1054
1055 if ((err = snd_pcm_lib_malloc_pages(substream,
1056 params_buffer_bytes(hw_params))) < 0)
1057 return err;
1058 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1059 params_channels(hw_params)) |
1060 snd_cs4231_get_rate(params_rate(hw_params));
1061 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
1062
1063 return 0;
1064 }
1065
1066 static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
1067 {
1068 return snd_pcm_lib_free_pages(substream);
1069 }
1070
1071 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
1072 {
1073 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1074 struct snd_pcm_runtime *runtime = substream->runtime;
1075 unsigned long flags;
1076
1077 spin_lock_irqsave(&chip->lock, flags);
1078
1079 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
1080 CS4231_PLAYBACK_PIO);
1081
1082 if (runtime->period_size > 0xffff + 1)
1083 BUG();
1084
1085 chip->p_periods_sent = 0;
1086 spin_unlock_irqrestore(&chip->lock, flags);
1087
1088 return 0;
1089 }
1090
1091 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
1092 struct snd_pcm_hw_params *hw_params)
1093 {
1094 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1095 unsigned char new_cdfr;
1096 int err;
1097
1098 if ((err = snd_pcm_lib_malloc_pages(substream,
1099 params_buffer_bytes(hw_params))) < 0)
1100 return err;
1101 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1102 params_channels(hw_params)) |
1103 snd_cs4231_get_rate(params_rate(hw_params));
1104 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
1105
1106 return 0;
1107 }
1108
1109 static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
1110 {
1111 return snd_pcm_lib_free_pages(substream);
1112 }
1113
1114 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
1115 {
1116 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1117 unsigned long flags;
1118
1119 spin_lock_irqsave(&chip->lock, flags);
1120 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
1121 CS4231_RECORD_PIO);
1122
1123
1124 chip->c_periods_sent = 0;
1125 spin_unlock_irqrestore(&chip->lock, flags);
1126
1127 return 0;
1128 }
1129
1130 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
1131 {
1132 unsigned long flags;
1133 unsigned char res;
1134
1135 spin_lock_irqsave(&chip->lock, flags);
1136 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
1137 spin_unlock_irqrestore(&chip->lock, flags);
1138
1139 if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */
1140 chip->capture_substream->runtime->overrange++;
1141 }
1142
1143 static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
1144 {
1145 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
1146 snd_pcm_period_elapsed(chip->playback_substream);
1147 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
1148 &chip->p_periods_sent);
1149 }
1150 }
1151
1152 static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
1153 {
1154 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
1155 snd_pcm_period_elapsed(chip->capture_substream);
1156 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
1157 &chip->c_periods_sent);
1158 }
1159 }
1160
1161 static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
1162 {
1163 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1164 struct cs4231_dma_control *dma_cont = &chip->p_dma;
1165 size_t ptr;
1166
1167 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1168 return 0;
1169 ptr = dma_cont->address(dma_cont);
1170 if (ptr != 0)
1171 ptr -= substream->runtime->dma_addr;
1172
1173 return bytes_to_frames(substream->runtime, ptr);
1174 }
1175
1176 static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
1177 {
1178 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1179 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1180 size_t ptr;
1181
1182 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1183 return 0;
1184 ptr = dma_cont->address(dma_cont);
1185 if (ptr != 0)
1186 ptr -= substream->runtime->dma_addr;
1187
1188 return bytes_to_frames(substream->runtime, ptr);
1189 }
1190
1191 /*
1192
1193 */
1194
1195 static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
1196 {
1197 unsigned long flags;
1198 int i, id, vers;
1199 unsigned char *ptr;
1200
1201 id = vers = 0;
1202 for (i = 0; i < 50; i++) {
1203 mb();
1204 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
1205 udelay(2000);
1206 else {
1207 spin_lock_irqsave(&chip->lock, flags);
1208 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1209 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1210 vers = snd_cs4231_in(chip, CS4231_VERSION);
1211 spin_unlock_irqrestore(&chip->lock, flags);
1212 if (id == 0x0a)
1213 break; /* this is valid value */
1214 }
1215 }
1216 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1217 if (id != 0x0a)
1218 return -ENODEV; /* no valid device found */
1219
1220 spin_lock_irqsave(&chip->lock, flags);
1221
1222
1223 /* Reset DMA engine (sbus only). */
1224 chip->p_dma.reset(chip);
1225
1226 __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */
1227 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS));
1228 mb();
1229
1230 spin_unlock_irqrestore(&chip->lock, flags);
1231
1232 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1233 chip->image[CS4231_IFACE_CTRL] =
1234 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1235 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1236 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1237 if (vers & 0x20)
1238 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1239
1240 ptr = (unsigned char *) &chip->image;
1241
1242 snd_cs4231_mce_down(chip);
1243
1244 spin_lock_irqsave(&chip->lock, flags);
1245
1246 for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */
1247 snd_cs4231_out(chip, i, *ptr++);
1248
1249 spin_unlock_irqrestore(&chip->lock, flags);
1250
1251 snd_cs4231_mce_up(chip);
1252
1253 snd_cs4231_mce_down(chip);
1254
1255 mdelay(2);
1256
1257 return 0; /* all things are ok.. */
1258 }
1259
1260 static struct snd_pcm_hardware snd_cs4231_playback =
1261 {
1262 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1263 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1264 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1265 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1266 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1267 SNDRV_PCM_FMTBIT_S16_BE),
1268 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1269 .rate_min = 5510,
1270 .rate_max = 48000,
1271 .channels_min = 1,
1272 .channels_max = 2,
1273 .buffer_bytes_max = (32*1024),
1274 .period_bytes_min = 4096,
1275 .period_bytes_max = (32*1024),
1276 .periods_min = 1,
1277 .periods_max = 1024,
1278 };
1279
1280 static struct snd_pcm_hardware snd_cs4231_capture =
1281 {
1282 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1283 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1284 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1285 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1286 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1287 SNDRV_PCM_FMTBIT_S16_BE),
1288 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1289 .rate_min = 5510,
1290 .rate_max = 48000,
1291 .channels_min = 1,
1292 .channels_max = 2,
1293 .buffer_bytes_max = (32*1024),
1294 .period_bytes_min = 4096,
1295 .period_bytes_max = (32*1024),
1296 .periods_min = 1,
1297 .periods_max = 1024,
1298 };
1299
1300 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1301 {
1302 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1303 struct snd_pcm_runtime *runtime = substream->runtime;
1304 int err;
1305
1306 runtime->hw = snd_cs4231_playback;
1307
1308 if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
1309 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1310 return err;
1311 }
1312 chip->playback_substream = substream;
1313 chip->p_periods_sent = 0;
1314 snd_pcm_set_sync(substream);
1315 snd_cs4231_xrate(runtime);
1316
1317 return 0;
1318 }
1319
1320 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1321 {
1322 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1323 struct snd_pcm_runtime *runtime = substream->runtime;
1324 int err;
1325
1326 runtime->hw = snd_cs4231_capture;
1327
1328 if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
1329 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1330 return err;
1331 }
1332 chip->capture_substream = substream;
1333 chip->c_periods_sent = 0;
1334 snd_pcm_set_sync(substream);
1335 snd_cs4231_xrate(runtime);
1336
1337 return 0;
1338 }
1339
1340 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1341 {
1342 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1343
1344 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1345 chip->playback_substream = NULL;
1346
1347 return 0;
1348 }
1349
1350 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1351 {
1352 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1353
1354 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1355 chip->capture_substream = NULL;
1356
1357 return 0;
1358 }
1359
1360 /* XXX We can do some power-management, in particular on EBUS using
1361 * XXX the audio AUXIO register...
1362 */
1363
1364 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1365 .open = snd_cs4231_playback_open,
1366 .close = snd_cs4231_playback_close,
1367 .ioctl = snd_pcm_lib_ioctl,
1368 .hw_params = snd_cs4231_playback_hw_params,
1369 .hw_free = snd_cs4231_playback_hw_free,
1370 .prepare = snd_cs4231_playback_prepare,
1371 .trigger = snd_cs4231_trigger,
1372 .pointer = snd_cs4231_playback_pointer,
1373 };
1374
1375 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1376 .open = snd_cs4231_capture_open,
1377 .close = snd_cs4231_capture_close,
1378 .ioctl = snd_pcm_lib_ioctl,
1379 .hw_params = snd_cs4231_capture_hw_params,
1380 .hw_free = snd_cs4231_capture_hw_free,
1381 .prepare = snd_cs4231_capture_prepare,
1382 .trigger = snd_cs4231_trigger,
1383 .pointer = snd_cs4231_capture_pointer,
1384 };
1385
1386 static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
1387 {
1388 struct snd_pcm *pcm;
1389 int err;
1390
1391 if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0)
1392 return err;
1393
1394 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
1395 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
1396
1397 /* global setup */
1398 pcm->private_data = chip;
1399 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1400 strcpy(pcm->name, "CS4231");
1401
1402 chip->p_dma.preallocate(chip, pcm);
1403
1404 chip->pcm = pcm;
1405
1406 return 0;
1407 }
1408
1409 static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
1410 {
1411 struct snd_timer *timer;
1412 struct snd_timer_id tid;
1413 int err;
1414
1415 /* Timer initialization */
1416 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1417 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1418 tid.card = chip->card->number;
1419 tid.device = 0;
1420 tid.subdevice = 0;
1421 if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1422 return err;
1423 strcpy(timer->name, "CS4231");
1424 timer->private_data = chip;
1425 timer->hw = snd_cs4231_timer_table;
1426 chip->timer = timer;
1427
1428 return 0;
1429 }
1430
1431 /*
1432 * MIXER part
1433 */
1434
1435 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1436 struct snd_ctl_elem_info *uinfo)
1437 {
1438 static char *texts[4] = {
1439 "Line", "CD", "Mic", "Mix"
1440 };
1441 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1442
1443 snd_assert(chip->card != NULL, return -EINVAL);
1444 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1445 uinfo->count = 2;
1446 uinfo->value.enumerated.items = 4;
1447 if (uinfo->value.enumerated.item > 3)
1448 uinfo->value.enumerated.item = 3;
1449 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1450
1451 return 0;
1452 }
1453
1454 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1455 struct snd_ctl_elem_value *ucontrol)
1456 {
1457 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1458 unsigned long flags;
1459
1460 spin_lock_irqsave(&chip->lock, flags);
1461 ucontrol->value.enumerated.item[0] =
1462 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1463 ucontrol->value.enumerated.item[1] =
1464 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1465 spin_unlock_irqrestore(&chip->lock, flags);
1466
1467 return 0;
1468 }
1469
1470 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1471 struct snd_ctl_elem_value *ucontrol)
1472 {
1473 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1474 unsigned long flags;
1475 unsigned short left, right;
1476 int change;
1477
1478 if (ucontrol->value.enumerated.item[0] > 3 ||
1479 ucontrol->value.enumerated.item[1] > 3)
1480 return -EINVAL;
1481 left = ucontrol->value.enumerated.item[0] << 6;
1482 right = ucontrol->value.enumerated.item[1] << 6;
1483
1484 spin_lock_irqsave(&chip->lock, flags);
1485
1486 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1487 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1488 change = left != chip->image[CS4231_LEFT_INPUT] ||
1489 right != chip->image[CS4231_RIGHT_INPUT];
1490 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1491 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1492
1493 spin_unlock_irqrestore(&chip->lock, flags);
1494
1495 return change;
1496 }
1497
1498 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1499 struct snd_ctl_elem_info *uinfo)
1500 {
1501 int mask = (kcontrol->private_value >> 16) & 0xff;
1502
1503 uinfo->type = (mask == 1) ?
1504 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1505 uinfo->count = 1;
1506 uinfo->value.integer.min = 0;
1507 uinfo->value.integer.max = mask;
1508
1509 return 0;
1510 }
1511
1512 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1513 struct snd_ctl_elem_value *ucontrol)
1514 {
1515 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1516 unsigned long flags;
1517 int reg = kcontrol->private_value & 0xff;
1518 int shift = (kcontrol->private_value >> 8) & 0xff;
1519 int mask = (kcontrol->private_value >> 16) & 0xff;
1520 int invert = (kcontrol->private_value >> 24) & 0xff;
1521
1522 spin_lock_irqsave(&chip->lock, flags);
1523
1524 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1525
1526 spin_unlock_irqrestore(&chip->lock, flags);
1527
1528 if (invert)
1529 ucontrol->value.integer.value[0] =
1530 (mask - ucontrol->value.integer.value[0]);
1531
1532 return 0;
1533 }
1534
1535 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1536 struct snd_ctl_elem_value *ucontrol)
1537 {
1538 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1539 unsigned long flags;
1540 int reg = kcontrol->private_value & 0xff;
1541 int shift = (kcontrol->private_value >> 8) & 0xff;
1542 int mask = (kcontrol->private_value >> 16) & 0xff;
1543 int invert = (kcontrol->private_value >> 24) & 0xff;
1544 int change;
1545 unsigned short val;
1546
1547 val = (ucontrol->value.integer.value[0] & mask);
1548 if (invert)
1549 val = mask - val;
1550 val <<= shift;
1551
1552 spin_lock_irqsave(&chip->lock, flags);
1553
1554 val = (chip->image[reg] & ~(mask << shift)) | val;
1555 change = val != chip->image[reg];
1556 snd_cs4231_out(chip, reg, val);
1557
1558 spin_unlock_irqrestore(&chip->lock, flags);
1559
1560 return change;
1561 }
1562
1563 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1564 struct snd_ctl_elem_info *uinfo)
1565 {
1566 int mask = (kcontrol->private_value >> 24) & 0xff;
1567
1568 uinfo->type = mask == 1 ?
1569 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1570 uinfo->count = 2;
1571 uinfo->value.integer.min = 0;
1572 uinfo->value.integer.max = mask;
1573
1574 return 0;
1575 }
1576
1577 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1578 struct snd_ctl_elem_value *ucontrol)
1579 {
1580 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1581 unsigned long flags;
1582 int left_reg = kcontrol->private_value & 0xff;
1583 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1584 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1585 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1586 int mask = (kcontrol->private_value >> 24) & 0xff;
1587 int invert = (kcontrol->private_value >> 22) & 1;
1588
1589 spin_lock_irqsave(&chip->lock, flags);
1590
1591 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1592 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1593
1594 spin_unlock_irqrestore(&chip->lock, flags);
1595
1596 if (invert) {
1597 ucontrol->value.integer.value[0] =
1598 (mask - ucontrol->value.integer.value[0]);
1599 ucontrol->value.integer.value[1] =
1600 (mask - ucontrol->value.integer.value[1]);
1601 }
1602
1603 return 0;
1604 }
1605
1606 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1607 struct snd_ctl_elem_value *ucontrol)
1608 {
1609 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1610 unsigned long flags;
1611 int left_reg = kcontrol->private_value & 0xff;
1612 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1613 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1614 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1615 int mask = (kcontrol->private_value >> 24) & 0xff;
1616 int invert = (kcontrol->private_value >> 22) & 1;
1617 int change;
1618 unsigned short val1, val2;
1619
1620 val1 = ucontrol->value.integer.value[0] & mask;
1621 val2 = ucontrol->value.integer.value[1] & mask;
1622 if (invert) {
1623 val1 = mask - val1;
1624 val2 = mask - val2;
1625 }
1626 val1 <<= shift_left;
1627 val2 <<= shift_right;
1628
1629 spin_lock_irqsave(&chip->lock, flags);
1630
1631 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1632 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1633 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1634 snd_cs4231_out(chip, left_reg, val1);
1635 snd_cs4231_out(chip, right_reg, val2);
1636
1637 spin_unlock_irqrestore(&chip->lock, flags);
1638
1639 return change;
1640 }
1641
1642 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1643 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1644 .info = snd_cs4231_info_single, \
1645 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1646 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1647
1648 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1649 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1650 .info = snd_cs4231_info_double, \
1651 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1652 .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1653
1654 static struct snd_kcontrol_new snd_cs4231_controls[] __initdata = {
1655 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1656 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1657 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1658 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1659 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1660 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1661 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1662 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1663 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1664 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1665 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1666 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1667 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
1668 {
1669 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1670 .name = "Capture Source",
1671 .info = snd_cs4231_info_mux,
1672 .get = snd_cs4231_get_mux,
1673 .put = snd_cs4231_put_mux,
1674 },
1675 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
1676 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1677 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1678 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */
1679 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1680 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1681 };
1682
1683 static int __init snd_cs4231_mixer(struct snd_cs4231 *chip)
1684 {
1685 struct snd_card *card;
1686 int err, idx;
1687
1688 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1689
1690 card = chip->card;
1691
1692 strcpy(card->mixername, chip->pcm->name);
1693
1694 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1695 if ((err = snd_ctl_add(card,
1696 snd_ctl_new1(&snd_cs4231_controls[idx],
1697 chip))) < 0)
1698 return err;
1699 }
1700 return 0;
1701 }
1702
1703 static int dev;
1704
1705 static int __init cs4231_attach_begin(struct snd_card **rcard)
1706 {
1707 struct snd_card *card;
1708
1709 *rcard = NULL;
1710
1711 if (dev >= SNDRV_CARDS)
1712 return -ENODEV;
1713
1714 if (!enable[dev]) {
1715 dev++;
1716 return -ENOENT;
1717 }
1718
1719 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1720 if (card == NULL)
1721 return -ENOMEM;
1722
1723 strcpy(card->driver, "CS4231");
1724 strcpy(card->shortname, "Sun CS4231");
1725
1726 *rcard = card;
1727 return 0;
1728 }
1729
1730 static int __init cs4231_attach_finish(struct snd_card *card, struct snd_cs4231 *chip)
1731 {
1732 int err;
1733
1734 if ((err = snd_cs4231_pcm(chip)) < 0)
1735 goto out_err;
1736
1737 if ((err = snd_cs4231_mixer(chip)) < 0)
1738 goto out_err;
1739
1740 if ((err = snd_cs4231_timer(chip)) < 0)
1741 goto out_err;
1742
1743 if ((err = snd_card_register(card)) < 0)
1744 goto out_err;
1745
1746 chip->next = cs4231_list;
1747 cs4231_list = chip;
1748
1749 dev++;
1750 return 0;
1751
1752 out_err:
1753 snd_card_free(card);
1754 return err;
1755 }
1756
1757 #ifdef SBUS_SUPPORT
1758
1759 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1760 {
1761 unsigned long flags;
1762 unsigned char status;
1763 u32 csr;
1764 struct snd_cs4231 *chip = dev_id;
1765
1766 /*This is IRQ is not raised by the cs4231*/
1767 if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ))
1768 return IRQ_NONE;
1769
1770 /* ACK the APC interrupt. */
1771 csr = sbus_readl(chip->port + APCCSR);
1772
1773 sbus_writel(csr, chip->port + APCCSR);
1774
1775 if ((csr & APC_PDMA_READY) &&
1776 (csr & APC_PLAY_INT) &&
1777 (csr & APC_XINT_PNVA) &&
1778 !(csr & APC_XINT_EMPT))
1779 snd_cs4231_play_callback(chip);
1780
1781 if ((csr & APC_CDMA_READY) &&
1782 (csr & APC_CAPT_INT) &&
1783 (csr & APC_XINT_CNVA) &&
1784 !(csr & APC_XINT_EMPT))
1785 snd_cs4231_capture_callback(chip);
1786
1787 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1788
1789 if (status & CS4231_TIMER_IRQ) {
1790 if (chip->timer)
1791 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1792 }
1793
1794 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1795 snd_cs4231_overrange(chip);
1796
1797 /* ACK the CS4231 interrupt. */
1798 spin_lock_irqsave(&chip->lock, flags);
1799 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1800 spin_unlock_irqrestore(&chip->lock, flags);
1801
1802 return 0;
1803 }
1804
1805 /*
1806 * SBUS DMA routines
1807 */
1808
1809 static int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
1810 {
1811 unsigned long flags;
1812 u32 test, csr;
1813 int err;
1814 struct sbus_dma_info *base = &dma_cont->sbus_info;
1815
1816 if (len >= (1 << 24))
1817 return -EINVAL;
1818 spin_lock_irqsave(&base->lock, flags);
1819 csr = sbus_readl(base->regs + APCCSR);
1820 err = -EINVAL;
1821 test = APC_CDMA_READY;
1822 if ( base->dir == APC_PLAY )
1823 test = APC_PDMA_READY;
1824 if (!(csr & test))
1825 goto out;
1826 err = -EBUSY;
1827 csr = sbus_readl(base->regs + APCCSR);
1828 test = APC_XINT_CNVA;
1829 if ( base->dir == APC_PLAY )
1830 test = APC_XINT_PNVA;
1831 if (!(csr & test))
1832 goto out;
1833 err = 0;
1834 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1835 sbus_writel(len, base->regs + base->dir + APCNC);
1836 out:
1837 spin_unlock_irqrestore(&base->lock, flags);
1838 return err;
1839 }
1840
1841 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1842 {
1843 unsigned long flags;
1844 u32 csr, test;
1845 struct sbus_dma_info *base = &dma_cont->sbus_info;
1846
1847 spin_lock_irqsave(&base->lock, flags);
1848 csr = sbus_readl(base->regs + APCCSR);
1849 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1850 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1851 APC_XINT_PENA;
1852 if ( base->dir == APC_RECORD )
1853 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1854 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1855 csr |= test;
1856 sbus_writel(csr, base->regs + APCCSR);
1857 spin_unlock_irqrestore(&base->lock, flags);
1858 }
1859
1860 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1861 {
1862 unsigned long flags;
1863 u32 csr, shift;
1864 struct sbus_dma_info *base = &dma_cont->sbus_info;
1865
1866 spin_lock_irqsave(&base->lock, flags);
1867 if (!on) {
1868 if (base->dir == APC_PLAY) {
1869 sbus_writel(0, base->regs + base->dir + APCNVA);
1870 sbus_writel(1, base->regs + base->dir + APCC);
1871 }
1872 else
1873 {
1874 sbus_writel(0, base->regs + base->dir + APCNC);
1875 sbus_writel(0, base->regs + base->dir + APCVA);
1876 }
1877 }
1878 udelay(600);
1879 csr = sbus_readl(base->regs + APCCSR);
1880 shift = 0;
1881 if ( base->dir == APC_PLAY )
1882 shift = 1;
1883 if (on)
1884 csr &= ~(APC_CPAUSE << shift);
1885 else
1886 csr |= (APC_CPAUSE << shift);
1887 sbus_writel(csr, base->regs + APCCSR);
1888 if (on)
1889 csr |= (APC_CDMA_READY << shift);
1890 else
1891 csr &= ~(APC_CDMA_READY << shift);
1892 sbus_writel(csr, base->regs + APCCSR);
1893
1894 spin_unlock_irqrestore(&base->lock, flags);
1895 }
1896
1897 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1898 {
1899 struct sbus_dma_info *base = &dma_cont->sbus_info;
1900
1901 return sbus_readl(base->regs + base->dir + APCVA);
1902 }
1903
1904 static void sbus_dma_reset(struct snd_cs4231 *chip)
1905 {
1906 sbus_writel(APC_CHIP_RESET, chip->port + APCCSR);
1907 sbus_writel(0x00, chip->port + APCCSR);
1908 sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET,
1909 chip->port + APCCSR);
1910
1911 udelay(20);
1912
1913 sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET,
1914 chip->port + APCCSR);
1915 sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA |
1916 APC_XINT_PENA |
1917 APC_XINT_CENA),
1918 chip->port + APCCSR);
1919 }
1920
1921 static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
1922 {
1923 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
1924 snd_dma_sbus_data(chip->dev_u.sdev),
1925 64*1024, 128*1024);
1926 }
1927
1928 /*
1929 * Init and exit routines
1930 */
1931
1932 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1933 {
1934 if (chip->irq[0])
1935 free_irq(chip->irq[0], chip);
1936
1937 if (chip->port)
1938 sbus_iounmap(chip->port, chip->regs_size);
1939
1940 kfree(chip);
1941
1942 return 0;
1943 }
1944
1945 static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1946 {
1947 struct snd_cs4231 *cp = device->device_data;
1948
1949 return snd_cs4231_sbus_free(cp);
1950 }
1951
1952 static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1953 .dev_free = snd_cs4231_sbus_dev_free,
1954 };
1955
1956 static int __init snd_cs4231_sbus_create(struct snd_card *card,
1957 struct sbus_dev *sdev,
1958 int dev,
1959 struct snd_cs4231 **rchip)
1960 {
1961 struct snd_cs4231 *chip;
1962 int err;
1963
1964 *rchip = NULL;
1965 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1966 if (chip == NULL)
1967 return -ENOMEM;
1968
1969 spin_lock_init(&chip->lock);
1970 spin_lock_init(&chip->c_dma.sbus_info.lock);
1971 spin_lock_init(&chip->p_dma.sbus_info.lock);
1972 init_MUTEX(&chip->mce_mutex);
1973 init_MUTEX(&chip->open_mutex);
1974 chip->card = card;
1975 chip->dev_u.sdev = sdev;
1976 chip->regs_size = sdev->reg_addrs[0].reg_size;
1977 memcpy(&chip->image, &snd_cs4231_original_image,
1978 sizeof(snd_cs4231_original_image));
1979
1980 chip->port = sbus_ioremap(&sdev->resource[0], 0,
1981 chip->regs_size, "cs4231");
1982 if (!chip->port) {
1983 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1984 return -EIO;
1985 }
1986
1987 chip->c_dma.sbus_info.regs = chip->port;
1988 chip->p_dma.sbus_info.regs = chip->port;
1989 chip->c_dma.sbus_info.dir = APC_RECORD;
1990 chip->p_dma.sbus_info.dir = APC_PLAY;
1991
1992 chip->p_dma.prepare = sbus_dma_prepare;
1993 chip->p_dma.enable = sbus_dma_enable;
1994 chip->p_dma.request = sbus_dma_request;
1995 chip->p_dma.address = sbus_dma_addr;
1996 chip->p_dma.reset = sbus_dma_reset;
1997 chip->p_dma.preallocate = sbus_dma_preallocate;
1998
1999 chip->c_dma.prepare = sbus_dma_prepare;
2000 chip->c_dma.enable = sbus_dma_enable;
2001 chip->c_dma.request = sbus_dma_request;
2002 chip->c_dma.address = sbus_dma_addr;
2003 chip->c_dma.reset = sbus_dma_reset;
2004 chip->c_dma.preallocate = sbus_dma_preallocate;
2005
2006 if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
2007 SA_SHIRQ, "cs4231", chip)) {
2008 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %s\n",
2009 dev,
2010 __irq_itoa(sdev->irqs[0]));
2011 snd_cs4231_sbus_free(chip);
2012 return -EBUSY;
2013 }
2014 chip->irq[0] = sdev->irqs[0];
2015
2016 if (snd_cs4231_probe(chip) < 0) {
2017 snd_cs4231_sbus_free(chip);
2018 return -ENODEV;
2019 }
2020 snd_cs4231_init(chip);
2021
2022 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2023 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
2024 snd_cs4231_sbus_free(chip);
2025 return err;
2026 }
2027
2028 *rchip = chip;
2029 return 0;
2030 }
2031
2032 static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
2033 {
2034 struct resource *rp = &sdev->resource[0];
2035 struct snd_cs4231 *cp;
2036 struct snd_card *card;
2037 int err;
2038
2039 err = cs4231_attach_begin(&card);
2040 if (err)
2041 return err;
2042
2043 sprintf(card->longname, "%s at 0x%02lx:0x%08lx, irq %s",
2044 card->shortname,
2045 rp->flags & 0xffL,
2046 rp->start,
2047 __irq_itoa(sdev->irqs[0]));
2048
2049 if ((err = snd_cs4231_sbus_create(card, sdev, dev, &cp)) < 0) {
2050 snd_card_free(card);
2051 return err;
2052 }
2053
2054 return cs4231_attach_finish(card, cp);
2055 }
2056 #endif
2057
2058 #ifdef EBUS_SUPPORT
2059
2060 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie)
2061 {
2062 struct snd_cs4231 *chip = cookie;
2063
2064 snd_cs4231_play_callback(chip);
2065 }
2066
2067 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie)
2068 {
2069 struct snd_cs4231 *chip = cookie;
2070
2071 snd_cs4231_capture_callback(chip);
2072 }
2073
2074 /*
2075 * EBUS DMA wrappers
2076 */
2077
2078 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
2079 {
2080 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
2081 }
2082
2083 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
2084 {
2085 ebus_dma_enable(&dma_cont->ebus_info, on);
2086 }
2087
2088 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
2089 {
2090 ebus_dma_prepare(&dma_cont->ebus_info, dir);
2091 }
2092
2093 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
2094 {
2095 return ebus_dma_addr(&dma_cont->ebus_info);
2096 }
2097
2098 static void _ebus_dma_reset(struct snd_cs4231 *chip)
2099 {
2100 return;
2101 }
2102
2103 static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
2104 {
2105 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
2106 snd_dma_pci_data(chip->dev_u.pdev),
2107 64*1024, 128*1024);
2108 }
2109
2110 /*
2111 * Init and exit routines
2112 */
2113
2114 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
2115 {
2116 if (chip->c_dma.ebus_info.regs) {
2117 ebus_dma_unregister(&chip->c_dma.ebus_info);
2118 iounmap(chip->c_dma.ebus_info.regs);
2119 }
2120 if (chip->p_dma.ebus_info.regs) {
2121 ebus_dma_unregister(&chip->p_dma.ebus_info);
2122 iounmap(chip->p_dma.ebus_info.regs);
2123 }
2124
2125 if (chip->port)
2126 iounmap(chip->port);
2127
2128 kfree(chip);
2129
2130 return 0;
2131 }
2132
2133 static int snd_cs4231_ebus_dev_free(struct snd_device *device)
2134 {
2135 struct snd_cs4231 *cp = device->device_data;
2136
2137 return snd_cs4231_ebus_free(cp);
2138 }
2139
2140 static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
2141 .dev_free = snd_cs4231_ebus_dev_free,
2142 };
2143
2144 static int __init snd_cs4231_ebus_create(struct snd_card *card,
2145 struct linux_ebus_device *edev,
2146 int dev,
2147 struct snd_cs4231 **rchip)
2148 {
2149 struct snd_cs4231 *chip;
2150 int err;
2151
2152 *rchip = NULL;
2153 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2154 if (chip == NULL)
2155 return -ENOMEM;
2156
2157 spin_lock_init(&chip->lock);
2158 spin_lock_init(&chip->c_dma.ebus_info.lock);
2159 spin_lock_init(&chip->p_dma.ebus_info.lock);
2160 init_MUTEX(&chip->mce_mutex);
2161 init_MUTEX(&chip->open_mutex);
2162 chip->flags |= CS4231_FLAG_EBUS;
2163 chip->card = card;
2164 chip->dev_u.pdev = edev->bus->self;
2165 memcpy(&chip->image, &snd_cs4231_original_image,
2166 sizeof(snd_cs4231_original_image));
2167 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
2168 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2169 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
2170 chip->c_dma.ebus_info.client_cookie = chip;
2171 chip->c_dma.ebus_info.irq = edev->irqs[0];
2172 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
2173 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2174 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
2175 chip->p_dma.ebus_info.client_cookie = chip;
2176 chip->p_dma.ebus_info.irq = edev->irqs[1];
2177
2178 chip->p_dma.prepare = _ebus_dma_prepare;
2179 chip->p_dma.enable = _ebus_dma_enable;
2180 chip->p_dma.request = _ebus_dma_request;
2181 chip->p_dma.address = _ebus_dma_addr;
2182 chip->p_dma.reset = _ebus_dma_reset;
2183 chip->p_dma.preallocate = _ebus_dma_preallocate;
2184
2185 chip->c_dma.prepare = _ebus_dma_prepare;
2186 chip->c_dma.enable = _ebus_dma_enable;
2187 chip->c_dma.request = _ebus_dma_request;
2188 chip->c_dma.address = _ebus_dma_addr;
2189 chip->c_dma.reset = _ebus_dma_reset;
2190 chip->c_dma.preallocate = _ebus_dma_preallocate;
2191
2192 chip->port = ioremap(edev->resource[0].start, 0x10);
2193 chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10);
2194 chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10);
2195 if (!chip->port || !chip->p_dma.ebus_info.regs || !chip->c_dma.ebus_info.regs) {
2196 snd_cs4231_ebus_free(chip);
2197 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2198 return -EIO;
2199 }
2200
2201 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2202 snd_cs4231_ebus_free(chip);
2203 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", dev);
2204 return -EBUSY;
2205 }
2206 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2207 snd_cs4231_ebus_free(chip);
2208 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", dev);
2209 return -EBUSY;
2210 }
2211
2212 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2213 snd_cs4231_ebus_free(chip);
2214 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", dev);
2215 return -EBUSY;
2216 }
2217 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2218 snd_cs4231_ebus_free(chip);
2219 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2220 return -EBUSY;
2221 }
2222
2223 if (snd_cs4231_probe(chip) < 0) {
2224 snd_cs4231_ebus_free(chip);
2225 return -ENODEV;
2226 }
2227 snd_cs4231_init(chip);
2228
2229 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2230 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2231 snd_cs4231_ebus_free(chip);
2232 return err;
2233 }
2234
2235 *rchip = chip;
2236 return 0;
2237 }
2238
2239 static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
2240 {
2241 struct snd_card *card;
2242 struct snd_cs4231 *chip;
2243 int err;
2244
2245 err = cs4231_attach_begin(&card);
2246 if (err)
2247 return err;
2248
2249 sprintf(card->longname, "%s at 0x%lx, irq %s",
2250 card->shortname,
2251 edev->resource[0].start,
2252 __irq_itoa(edev->irqs[0]));
2253
2254 if ((err = snd_cs4231_ebus_create(card, edev, dev, &chip)) < 0) {
2255 snd_card_free(card);
2256 return err;
2257 }
2258
2259 return cs4231_attach_finish(card, chip);
2260 }
2261 #endif
2262
2263 static int __init cs4231_init(void)
2264 {
2265 #ifdef SBUS_SUPPORT
2266 struct sbus_bus *sbus;
2267 struct sbus_dev *sdev;
2268 #endif
2269 #ifdef EBUS_SUPPORT
2270 struct linux_ebus *ebus;
2271 struct linux_ebus_device *edev;
2272 #endif
2273 int found;
2274
2275 found = 0;
2276
2277 #ifdef SBUS_SUPPORT
2278 for_all_sbusdev(sdev, sbus) {
2279 if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
2280 if (cs4231_sbus_attach(sdev) == 0)
2281 found++;
2282 }
2283 }
2284 #endif
2285 #ifdef EBUS_SUPPORT
2286 for_each_ebus(ebus) {
2287 for_each_ebusdev(edev, ebus) {
2288 int match = 0;
2289
2290 if (!strcmp(edev->prom_name, "SUNW,CS4231")) {
2291 match = 1;
2292 } else if (!strcmp(edev->prom_name, "audio")) {
2293 char compat[16];
2294
2295 prom_getstring(edev->prom_node, "compatible",
2296 compat, sizeof(compat));
2297 compat[15] = '\0';
2298 if (!strcmp(compat, "SUNW,CS4231"))
2299 match = 1;
2300 }
2301
2302 if (match &&
2303 cs4231_ebus_attach(edev) == 0)
2304 found++;
2305 }
2306 }
2307 #endif
2308
2309
2310 return (found > 0) ? 0 : -EIO;
2311 }
2312
2313 static void __exit cs4231_exit(void)
2314 {
2315 struct snd_cs4231 *p = cs4231_list;
2316
2317 while (p != NULL) {
2318 struct snd_cs4231 *next = p->next;
2319
2320 snd_card_free(p->card);
2321
2322 p = next;
2323 }
2324
2325 cs4231_list = NULL;
2326 }
2327
2328 module_init(cs4231_init);
2329 module_exit(cs4231_exit);
Linux kernel - Deliverables
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