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[PATCH] x86/x86_64: mark rodata section read only: generic x86-64 bugfix
[linux-2.6/verdex.git] / sound / sparc / cs4231.c
blobe9086e95a31f13686a3db0cde9946f9a72091332
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 cs4231_dma_control {
73 void (*prepare)(struct cs4231_dma_control *dma_cont, int dir);
74 void (*enable)(struct cs4231_dma_control *dma_cont, int on);
75 int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len);
76 unsigned int (*address)(struct cs4231_dma_control *dma_cont);
77 void (*reset)(struct snd_cs4231 *chip);
78 void (*preallocate)(struct snd_cs4231 *chip, struct snd_snd_pcm *pcm);
79 #ifdef EBUS_SUPPORT
80 struct ebus_dma_info ebus_info;
81 #endif
82 #ifdef SBUS_SUPPORT
83 struct sbus_dma_info sbus_info;
84 #endif
85 };
86
87 struct snd_cs4231 {
88 spinlock_t lock;
89 void __iomem *port;
90
91 struct cs4231_dma_control p_dma;
92 struct cs4231_dma_control c_dma;
93
94 u32 flags;
95 #define CS4231_FLAG_EBUS 0x00000001
96 #define CS4231_FLAG_PLAYBACK 0x00000002
97 #define CS4231_FLAG_CAPTURE 0x00000004
98
99 struct snd_card *card;
100 struct snd_pcm *pcm;
101 struct snd_pcm_substream *playback_substream;
102 unsigned int p_periods_sent;
103 struct snd_pcm_substream *capture_substream;
104 unsigned int c_periods_sent;
105 struct snd_timer *timer;
106
107 unsigned short mode;
108 #define CS4231_MODE_NONE 0x0000
109 #define CS4231_MODE_PLAY 0x0001
110 #define CS4231_MODE_RECORD 0x0002
111 #define CS4231_MODE_TIMER 0x0004
112 #define CS4231_MODE_OPEN (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)
113
114 unsigned char image[32]; /* registers image */
115 int mce_bit;
116 int calibrate_mute;
117 struct semaphore mce_mutex;
118 struct semaphore open_mutex;
119
120 union {
121 #ifdef SBUS_SUPPORT
122 struct sbus_dev *sdev;
123 #endif
124 #ifdef EBUS_SUPPORT
125 struct pci_dev *pdev;
126 #endif
127 } dev_u;
128 unsigned int irq[2];
129 unsigned int regs_size;
130 struct snd_cs4231 *next;
131 };
132
133 static struct snd_cs4231 *cs4231_list;
134
135 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for
136 * now.... -DaveM
137 */
138
139 /* IO ports */
140
141 #define CS4231P(chip, x) ((chip)->port + c_d_c_CS4231##x)
142
143 /* XXX offsets are different than PC ISA chips... */
144 #define c_d_c_CS4231REGSEL 0x0
145 #define c_d_c_CS4231REG 0x4
146 #define c_d_c_CS4231STATUS 0x8
147 #define c_d_c_CS4231PIO 0xc
148
149 /* codec registers */
150
151 #define CS4231_LEFT_INPUT 0x00 /* left input control */
152 #define CS4231_RIGHT_INPUT 0x01 /* right input control */
153 #define CS4231_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */
154 #define CS4231_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */
155 #define CS4231_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */
156 #define CS4231_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */
157 #define CS4231_LEFT_OUTPUT 0x06 /* left output control register */
158 #define CS4231_RIGHT_OUTPUT 0x07 /* right output control register */
159 #define CS4231_PLAYBK_FORMAT 0x08 /* clock and data format - playback - bits 7-0 MCE */
160 #define CS4231_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */
161 #define CS4231_PIN_CTRL 0x0a /* pin control */
162 #define CS4231_TEST_INIT 0x0b /* test and initialization */
163 #define CS4231_MISC_INFO 0x0c /* miscellaneaous information */
164 #define CS4231_LOOPBACK 0x0d /* loopback control */
165 #define CS4231_PLY_UPR_CNT 0x0e /* playback upper base count */
166 #define CS4231_PLY_LWR_CNT 0x0f /* playback lower base count */
167 #define CS4231_ALT_FEATURE_1 0x10 /* alternate #1 feature enable */
168 #define CS4231_ALT_FEATURE_2 0x11 /* alternate #2 feature enable */
169 #define CS4231_LEFT_LINE_IN 0x12 /* left line input control */
170 #define CS4231_RIGHT_LINE_IN 0x13 /* right line input control */
171 #define CS4231_TIMER_LOW 0x14 /* timer low byte */
172 #define CS4231_TIMER_HIGH 0x15 /* timer high byte */
173 #define CS4231_LEFT_MIC_INPUT 0x16 /* left MIC input control register (InterWave only) */
174 #define CS4231_RIGHT_MIC_INPUT 0x17 /* right MIC input control register (InterWave only) */
175 #define CS4236_EXT_REG 0x17 /* extended register access */
176 #define CS4231_IRQ_STATUS 0x18 /* irq status register */
177 #define CS4231_LINE_LEFT_OUTPUT 0x19 /* left line output control register (InterWave only) */
178 #define CS4231_VERSION 0x19 /* CS4231(A) - version values */
179 #define CS4231_MONO_CTRL 0x1a /* mono input/output control */
180 #define CS4231_LINE_RIGHT_OUTPUT 0x1b /* right line output control register (InterWave only) */
181 #define CS4235_LEFT_MASTER 0x1b /* left master output control */
182 #define CS4231_REC_FORMAT 0x1c /* clock and data format - record - bits 7-0 MCE */
183 #define CS4231_PLY_VAR_FREQ 0x1d /* playback variable frequency */
184 #define CS4235_RIGHT_MASTER 0x1d /* right master output control */
185 #define CS4231_REC_UPR_CNT 0x1e /* record upper count */
186 #define CS4231_REC_LWR_CNT 0x1f /* record lower count */
187
188 /* definitions for codec register select port - CODECP( REGSEL ) */
189
190 #define CS4231_INIT 0x80 /* CODEC is initializing */
191 #define CS4231_MCE 0x40 /* mode change enable */
192 #define CS4231_TRD 0x20 /* transfer request disable */
193
194 /* definitions for codec status register - CODECP( STATUS ) */
195
196 #define CS4231_GLOBALIRQ 0x01 /* IRQ is active */
197
198 /* definitions for codec irq status - CS4231_IRQ_STATUS */
199
200 #define CS4231_PLAYBACK_IRQ 0x10
201 #define CS4231_RECORD_IRQ 0x20
202 #define CS4231_TIMER_IRQ 0x40
203 #define CS4231_ALL_IRQS 0x70
204 #define CS4231_REC_UNDERRUN 0x08
205 #define CS4231_REC_OVERRUN 0x04
206 #define CS4231_PLY_OVERRUN 0x02
207 #define CS4231_PLY_UNDERRUN 0x01
208
209 /* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */
210
211 #define CS4231_ENABLE_MIC_GAIN 0x20
212
213 #define CS4231_MIXS_LINE 0x00
214 #define CS4231_MIXS_AUX1 0x40
215 #define CS4231_MIXS_MIC 0x80
216 #define CS4231_MIXS_ALL 0xc0
217
218 /* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */
219
220 #define CS4231_LINEAR_8 0x00 /* 8-bit unsigned data */
221 #define CS4231_ALAW_8 0x60 /* 8-bit A-law companded */
222 #define CS4231_ULAW_8 0x20 /* 8-bit U-law companded */
223 #define CS4231_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */
224 #define CS4231_LINEAR_16_BIG 0xc0 /* 16-bit twos complement data - big endian */
225 #define CS4231_ADPCM_16 0xa0 /* 16-bit ADPCM */
226 #define CS4231_STEREO 0x10 /* stereo mode */
227 /* bits 3-1 define frequency divisor */
228 #define CS4231_XTAL1 0x00 /* 24.576 crystal */
229 #define CS4231_XTAL2 0x01 /* 16.9344 crystal */
230
231 /* definitions for interface control register - CS4231_IFACE_CTRL */
232
233 #define CS4231_RECORD_PIO 0x80 /* record PIO enable */
234 #define CS4231_PLAYBACK_PIO 0x40 /* playback PIO enable */
235 #define CS4231_CALIB_MODE 0x18 /* calibration mode bits */
236 #define CS4231_AUTOCALIB 0x08 /* auto calibrate */
237 #define CS4231_SINGLE_DMA 0x04 /* use single DMA channel */
238 #define CS4231_RECORD_ENABLE 0x02 /* record enable */
239 #define CS4231_PLAYBACK_ENABLE 0x01 /* playback enable */
240
241 /* definitions for pin control register - CS4231_PIN_CTRL */
242
243 #define CS4231_IRQ_ENABLE 0x02 /* enable IRQ */
244 #define CS4231_XCTL1 0x40 /* external control #1 */
245 #define CS4231_XCTL0 0x80 /* external control #0 */
246
247 /* definitions for test and init register - CS4231_TEST_INIT */
248
249 #define CS4231_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */
250 #define CS4231_DMA_REQUEST 0x10 /* DMA request in progress */
251
252 /* definitions for misc control register - CS4231_MISC_INFO */
253
254 #define CS4231_MODE2 0x40 /* MODE 2 */
255 #define CS4231_IW_MODE3 0x6c /* MODE 3 - InterWave enhanced mode */
256 #define CS4231_4236_MODE3 0xe0 /* MODE 3 - CS4236+ enhanced mode */
257
258 /* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */
259
260 #define CS4231_DACZ 0x01 /* zero DAC when underrun */
261 #define CS4231_TIMER_ENABLE 0x40 /* codec timer enable */
262 #define CS4231_OLB 0x80 /* output level bit */
263
264 /* SBUS DMA register defines. */
265
266 #define APCCSR 0x10UL /* APC DMA CSR */
267 #define APCCVA 0x20UL /* APC Capture DMA Address */
268 #define APCCC 0x24UL /* APC Capture Count */
269 #define APCCNVA 0x28UL /* APC Capture DMA Next Address */
270 #define APCCNC 0x2cUL /* APC Capture Next Count */
271 #define APCPVA 0x30UL /* APC Play DMA Address */
272 #define APCPC 0x34UL /* APC Play Count */
273 #define APCPNVA 0x38UL /* APC Play DMA Next Address */
274 #define APCPNC 0x3cUL /* APC Play Next Count */
275
276 /* Defines for SBUS DMA-routines */
277
278 #define APCVA 0x0UL /* APC DMA Address */
279 #define APCC 0x4UL /* APC Count */
280 #define APCNVA 0x8UL /* APC DMA Next Address */
281 #define APCNC 0xcUL /* APC Next Count */
282 #define APC_PLAY 0x30UL /* Play registers start at 0x30 */
283 #define APC_RECORD 0x20UL /* Record registers start at 0x20 */
284
285 /* APCCSR bits */
286
287 #define APC_INT_PENDING 0x800000 /* Interrupt Pending */
288 #define APC_PLAY_INT 0x400000 /* Playback interrupt */
289 #define APC_CAPT_INT 0x200000 /* Capture interrupt */
290 #define APC_GENL_INT 0x100000 /* General interrupt */
291 #define APC_XINT_ENA 0x80000 /* General ext int. enable */
292 #define APC_XINT_PLAY 0x40000 /* Playback ext intr */
293 #define APC_XINT_CAPT 0x20000 /* Capture ext intr */
294 #define APC_XINT_GENL 0x10000 /* Error ext intr */
295 #define APC_XINT_EMPT 0x8000 /* Pipe empty interrupt (0 write to pva) */
296 #define APC_XINT_PEMP 0x4000 /* Play pipe empty (pva and pnva not set) */
297 #define APC_XINT_PNVA 0x2000 /* Playback NVA dirty */
298 #define APC_XINT_PENA 0x1000 /* play pipe empty Int enable */
299 #define APC_XINT_COVF 0x800 /* Cap data dropped on floor */
300 #define APC_XINT_CNVA 0x400 /* Capture NVA dirty */
301 #define APC_XINT_CEMP 0x200 /* Capture pipe empty (cva and cnva not set) */
302 #define APC_XINT_CENA 0x100 /* Cap. pipe empty int enable */
303 #define APC_PPAUSE 0x80 /* Pause the play DMA */
304 #define APC_CPAUSE 0x40 /* Pause the capture DMA */
305 #define APC_CDC_RESET 0x20 /* CODEC RESET */
306 #define APC_PDMA_READY 0x08 /* Play DMA Go */
307 #define APC_CDMA_READY 0x04 /* Capture DMA Go */
308 #define APC_CHIP_RESET 0x01 /* Reset the chip */
309
310 /* EBUS DMA register offsets */
311
312 #define EBDMA_CSR 0x00UL /* Control/Status */
313 #define EBDMA_ADDR 0x04UL /* DMA Address */
314 #define EBDMA_COUNT 0x08UL /* DMA Count */
315
316 /*
317 * Some variables
318 */
319
320 static unsigned char freq_bits[14] = {
321 /* 5510 */ 0x00 | CS4231_XTAL2,
322 /* 6620 */ 0x0E | CS4231_XTAL2,
323 /* 8000 */ 0x00 | CS4231_XTAL1,
324 /* 9600 */ 0x0E | CS4231_XTAL1,
325 /* 11025 */ 0x02 | CS4231_XTAL2,
326 /* 16000 */ 0x02 | CS4231_XTAL1,
327 /* 18900 */ 0x04 | CS4231_XTAL2,
328 /* 22050 */ 0x06 | CS4231_XTAL2,
329 /* 27042 */ 0x04 | CS4231_XTAL1,
330 /* 32000 */ 0x06 | CS4231_XTAL1,
331 /* 33075 */ 0x0C | CS4231_XTAL2,
332 /* 37800 */ 0x08 | CS4231_XTAL2,
333 /* 44100 */ 0x0A | CS4231_XTAL2,
334 /* 48000 */ 0x0C | CS4231_XTAL1
335 };
336
337 static unsigned int rates[14] = {
338 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
339 27042, 32000, 33075, 37800, 44100, 48000
340 };
341
342 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
343 .count = 14,
344 .list = rates,
345 };
346
347 static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
348 {
349 return snd_pcm_hw_constraint_list(runtime, 0,
350 SNDRV_PCM_HW_PARAM_RATE,
351 &hw_constraints_rates);
352 }
353
354 static unsigned char snd_cs4231_original_image[32] =
355 {
356 0x00, /* 00/00 - lic */
357 0x00, /* 01/01 - ric */
358 0x9f, /* 02/02 - la1ic */
359 0x9f, /* 03/03 - ra1ic */
360 0x9f, /* 04/04 - la2ic */
361 0x9f, /* 05/05 - ra2ic */
362 0xbf, /* 06/06 - loc */
363 0xbf, /* 07/07 - roc */
364 0x20, /* 08/08 - pdfr */
365 CS4231_AUTOCALIB, /* 09/09 - ic */
366 0x00, /* 0a/10 - pc */
367 0x00, /* 0b/11 - ti */
368 CS4231_MODE2, /* 0c/12 - mi */
369 0x00, /* 0d/13 - lbc */
370 0x00, /* 0e/14 - pbru */
371 0x00, /* 0f/15 - pbrl */
372 0x80, /* 10/16 - afei */
373 0x01, /* 11/17 - afeii */
374 0x9f, /* 12/18 - llic */
375 0x9f, /* 13/19 - rlic */
376 0x00, /* 14/20 - tlb */
377 0x00, /* 15/21 - thb */
378 0x00, /* 16/22 - la3mic/reserved */
379 0x00, /* 17/23 - ra3mic/reserved */
380 0x00, /* 18/24 - afs */
381 0x00, /* 19/25 - lamoc/version */
382 0x00, /* 1a/26 - mioc */
383 0x00, /* 1b/27 - ramoc/reserved */
384 0x20, /* 1c/28 - cdfr */
385 0x00, /* 1d/29 - res4 */
386 0x00, /* 1e/30 - cbru */
387 0x00, /* 1f/31 - cbrl */
388 };
389
390 static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
391 {
392 #ifdef EBUS_SUPPORT
393 if (cp->flags & CS4231_FLAG_EBUS) {
394 return readb(reg_addr);
395 } else {
396 #endif
397 #ifdef SBUS_SUPPORT
398 return sbus_readb(reg_addr);
399 #endif
400 #ifdef EBUS_SUPPORT
401 }
402 #endif
403 }
404
405 static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, void __iomem *reg_addr)
406 {
407 #ifdef EBUS_SUPPORT
408 if (cp->flags & CS4231_FLAG_EBUS) {
409 return writeb(val, reg_addr);
410 } else {
411 #endif
412 #ifdef SBUS_SUPPORT
413 return sbus_writeb(val, reg_addr);
414 #endif
415 #ifdef EBUS_SUPPORT
416 }
417 #endif
418 }
419
420 /*
421 * Basic I/O functions
422 */
423
424 static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
425 unsigned char mask, unsigned char value)
426 {
427 int timeout;
428 unsigned char tmp;
429
430 for (timeout = 250;
431 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
432 timeout--)
433 udelay(100);
434 #ifdef CONFIG_SND_DEBUG
435 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
436 snd_printdd("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
437 #endif
438 if (chip->calibrate_mute) {
439 chip->image[reg] &= mask;
440 chip->image[reg] |= value;
441 } else {
442 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
443 mb();
444 tmp = (chip->image[reg] & mask) | value;
445 __cs4231_writeb(chip, tmp, CS4231P(chip, REG));
446 chip->image[reg] = tmp;
447 mb();
448 }
449 }
450
451 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
452 {
453 int timeout;
454
455 for (timeout = 250;
456 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
457 timeout--)
458 udelay(100);
459 #ifdef CONFIG_SND_DEBUG
460 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
461 snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
462 #endif
463 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
464 __cs4231_writeb(chip, value, CS4231P(chip, REG));
465 mb();
466 }
467
468 static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
469 {
470 int timeout;
471
472 for (timeout = 250;
473 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
474 timeout--)
475 udelay(100);
476 #ifdef CONFIG_SND_DEBUG
477 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
478 snd_printdd("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
479 #endif
480 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
481 __cs4231_writeb(chip, value, CS4231P(chip, REG));
482 chip->image[reg] = value;
483 mb();
484 }
485
486 static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
487 {
488 int timeout;
489 unsigned char ret;
490
491 for (timeout = 250;
492 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
493 timeout--)
494 udelay(100);
495 #ifdef CONFIG_SND_DEBUG
496 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
497 snd_printdd("in: auto calibration time out - reg = 0x%x\n", reg);
498 #endif
499 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231P(chip, REGSEL));
500 mb();
501 ret = __cs4231_readb(chip, CS4231P(chip, REG));
502 return ret;
503 }
504
505 /*
506 * CS4231 detection / MCE routines
507 */
508
509 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
510 {
511 int timeout;
512
513 /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
514 for (timeout = 5; timeout > 0; timeout--)
515 __cs4231_readb(chip, CS4231P(chip, REGSEL));
516
517 /* end of cleanup sequence */
518 for (timeout = 500;
519 timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT);
520 timeout--)
521 udelay(1000);
522 }
523
524 static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
525 {
526 unsigned long flags;
527 int timeout;
528
529 spin_lock_irqsave(&chip->lock, flags);
530 for (timeout = 250; timeout > 0 && (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT); timeout--)
531 udelay(100);
532 #ifdef CONFIG_SND_DEBUG
533 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
534 snd_printdd("mce_up - auto calibration time out (0)\n");
535 #endif
536 chip->mce_bit |= CS4231_MCE;
537 timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL));
538 if (timeout == 0x80)
539 snd_printdd("mce_up [%p]: serious init problem - codec still busy\n", chip->port);
540 if (!(timeout & CS4231_MCE))
541 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL));
542 spin_unlock_irqrestore(&chip->lock, flags);
543 }
544
545 static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
546 {
547 unsigned long flags;
548 int timeout;
549
550 spin_lock_irqsave(&chip->lock, flags);
551 snd_cs4231_busy_wait(chip);
552 #ifdef CONFIG_SND_DEBUG
553 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
554 snd_printdd("mce_down [%p] - auto calibration time out (0)\n", CS4231P(chip, REGSEL));
555 #endif
556 chip->mce_bit &= ~CS4231_MCE;
557 timeout = __cs4231_readb(chip, CS4231P(chip, REGSEL));
558 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), CS4231P(chip, REGSEL));
559 if (timeout == 0x80)
560 snd_printdd("mce_down [%p]: serious init problem - codec still busy\n", chip->port);
561 if ((timeout & CS4231_MCE) == 0) {
562 spin_unlock_irqrestore(&chip->lock, flags);
563 return;
564 }
565 snd_cs4231_busy_wait(chip);
566
567 /* calibration process */
568
569 for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
570 udelay(100);
571 if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
572 snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
573 spin_unlock_irqrestore(&chip->lock, flags);
574 return;
575 }
576
577 /* in 10ms increments, check condition, up to 250ms */
578 timeout = 25;
579 while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
580 spin_unlock_irqrestore(&chip->lock, flags);
581 if (--timeout < 0) {
582 snd_printk("mce_down - auto calibration time out (2)\n");
583 return;
584 }
585 msleep(10);
586 spin_lock_irqsave(&chip->lock, flags);
587 }
588
589 /* in 10ms increments, check condition, up to 100ms */
590 timeout = 10;
591 while (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT) {
592 spin_unlock_irqrestore(&chip->lock, flags);
593 if (--timeout < 0) {
594 snd_printk("mce_down - auto calibration time out (3)\n");
595 return;
596 }
597 msleep(10);
598 spin_lock_irqsave(&chip->lock, flags);
599 }
600 spin_unlock_irqrestore(&chip->lock, flags);
601 }
602
603 static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
604 struct snd_pcm_substream *substream,
605 unsigned int *periods_sent)
606 {
607 struct snd_pcm_runtime *runtime = substream->runtime;
608
609 while (1) {
610 unsigned int period_size = snd_pcm_lib_period_bytes(substream);
611 unsigned int offset = period_size * (*periods_sent);
612
613 if (period_size >= (1 << 24))
614 BUG();
615
616 if (dma_cont->request(dma_cont, runtime->dma_addr + offset, period_size))
617 return;
618 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
619 }
620 }
621
622 static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
623 unsigned int what, int on)
624 {
625 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
626 struct cs4231_dma_control *dma_cont;
627
628 if (what & CS4231_PLAYBACK_ENABLE) {
629 dma_cont = &chip->p_dma;
630 if (on) {
631 dma_cont->prepare(dma_cont, 0);
632 dma_cont->enable(dma_cont, 1);
633 snd_cs4231_advance_dma(dma_cont,
634 chip->playback_substream,
635 &chip->p_periods_sent);
636 } else {
637 dma_cont->enable(dma_cont, 0);
638 }
639 }
640 if (what & CS4231_RECORD_ENABLE) {
641 dma_cont = &chip->c_dma;
642 if (on) {
643 dma_cont->prepare(dma_cont, 1);
644 dma_cont->enable(dma_cont, 1);
645 snd_cs4231_advance_dma(dma_cont,
646 chip->capture_substream,
647 &chip->c_periods_sent);
648 } else {
649 dma_cont->enable(dma_cont, 0);
650 }
651 }
652 }
653
654 static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
655 {
656 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
657 int result = 0;
658
659 switch (cmd) {
660 case SNDRV_PCM_TRIGGER_START:
661 case SNDRV_PCM_TRIGGER_STOP:
662 {
663 unsigned int what = 0;
664 struct snd_pcm_substream *s;
665 struct list_head *pos;
666 unsigned long flags;
667
668 snd_pcm_group_for_each(pos, substream) {
669 s = snd_pcm_group_substream_entry(pos);
670 if (s == chip->playback_substream) {
671 what |= CS4231_PLAYBACK_ENABLE;
672 snd_pcm_trigger_done(s, substream);
673 } else if (s == chip->capture_substream) {
674 what |= CS4231_RECORD_ENABLE;
675 snd_pcm_trigger_done(s, substream);
676 }
677 }
678
679 spin_lock_irqsave(&chip->lock, flags);
680 if (cmd == SNDRV_PCM_TRIGGER_START) {
681 cs4231_dma_trigger(substream, what, 1);
682 chip->image[CS4231_IFACE_CTRL] |= what;
683 } else {
684 cs4231_dma_trigger(substream, what, 0);
685 chip->image[CS4231_IFACE_CTRL] &= ~what;
686 }
687 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
688 chip->image[CS4231_IFACE_CTRL]);
689 spin_unlock_irqrestore(&chip->lock, flags);
690 break;
691 }
692 default:
693 result = -EINVAL;
694 break;
695 }
696
697 return result;
698 }
699
700 /*
701 * CODEC I/O
702 */
703
704 static unsigned char snd_cs4231_get_rate(unsigned int rate)
705 {
706 int i;
707
708 for (i = 0; i < 14; i++)
709 if (rate == rates[i])
710 return freq_bits[i];
711 // snd_BUG();
712 return freq_bits[13];
713 }
714
715 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, int channels)
716 {
717 unsigned char rformat;
718
719 rformat = CS4231_LINEAR_8;
720 switch (format) {
721 case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break;
722 case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break;
723 case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break;
724 case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break;
725 case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break;
726 }
727 if (channels > 1)
728 rformat |= CS4231_STEREO;
729 return rformat;
730 }
731
732 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
733 {
734 unsigned long flags;
735
736 mute = mute ? 1 : 0;
737 spin_lock_irqsave(&chip->lock, flags);
738 if (chip->calibrate_mute == mute) {
739 spin_unlock_irqrestore(&chip->lock, flags);
740 return;
741 }
742 if (!mute) {
743 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
744 chip->image[CS4231_LEFT_INPUT]);
745 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
746 chip->image[CS4231_RIGHT_INPUT]);
747 snd_cs4231_dout(chip, CS4231_LOOPBACK,
748 chip->image[CS4231_LOOPBACK]);
749 }
750 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
751 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
752 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
753 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
754 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
755 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
756 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
757 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
758 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
759 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
760 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
761 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
762 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
763 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
764 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
765 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
766 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
767 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
768 chip->calibrate_mute = mute;
769 spin_unlock_irqrestore(&chip->lock, flags);
770 }
771
772 static void snd_cs4231_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
773 unsigned char pdfr)
774 {
775 unsigned long flags;
776
777 down(&chip->mce_mutex);
778 snd_cs4231_calibrate_mute(chip, 1);
779
780 snd_cs4231_mce_up(chip);
781
782 spin_lock_irqsave(&chip->lock, flags);
783 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
784 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
785 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
786 pdfr);
787 spin_unlock_irqrestore(&chip->lock, flags);
788
789 snd_cs4231_mce_down(chip);
790
791 snd_cs4231_calibrate_mute(chip, 0);
792 up(&chip->mce_mutex);
793 }
794
795 static void snd_cs4231_capture_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
796 unsigned char cdfr)
797 {
798 unsigned long flags;
799
800 down(&chip->mce_mutex);
801 snd_cs4231_calibrate_mute(chip, 1);
802
803 snd_cs4231_mce_up(chip);
804
805 spin_lock_irqsave(&chip->lock, flags);
806 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
807 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
808 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
809 (cdfr & 0x0f));
810 spin_unlock_irqrestore(&chip->lock, flags);
811 snd_cs4231_mce_down(chip);
812 snd_cs4231_mce_up(chip);
813 spin_lock_irqsave(&chip->lock, flags);
814 }
815 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
816 spin_unlock_irqrestore(&chip->lock, flags);
817
818 snd_cs4231_mce_down(chip);
819
820 snd_cs4231_calibrate_mute(chip, 0);
821 up(&chip->mce_mutex);
822 }
823
824 /*
825 * Timer interface
826 */
827
828 static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
829 {
830 struct snd_cs4231 *chip = snd_timer_chip(timer);
831
832 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
833 }
834
835 static int snd_cs4231_timer_start(struct snd_timer *timer)
836 {
837 unsigned long flags;
838 unsigned int ticks;
839 struct snd_cs4231 *chip = snd_timer_chip(timer);
840
841 spin_lock_irqsave(&chip->lock, flags);
842 ticks = timer->sticks;
843 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
844 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
845 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
846 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
847 chip->image[CS4231_TIMER_HIGH] =
848 (unsigned char) (ticks >> 8));
849 snd_cs4231_out(chip, CS4231_TIMER_LOW,
850 chip->image[CS4231_TIMER_LOW] =
851 (unsigned char) ticks);
852 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
853 chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
854 }
855 spin_unlock_irqrestore(&chip->lock, flags);
856
857 return 0;
858 }
859
860 static int snd_cs4231_timer_stop(struct snd_timer *timer)
861 {
862 unsigned long flags;
863 struct snd_cs4231 *chip = snd_timer_chip(timer);
864
865 spin_lock_irqsave(&chip->lock, flags);
866 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
867 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
868 spin_unlock_irqrestore(&chip->lock, flags);
869
870 return 0;
871 }
872
873 static void __init snd_cs4231_init(struct snd_cs4231 *chip)
874 {
875 unsigned long flags;
876
877 snd_cs4231_mce_down(chip);
878
879 #ifdef SNDRV_DEBUG_MCE
880 snd_printdd("init: (1)\n");
881 #endif
882 snd_cs4231_mce_up(chip);
883 spin_lock_irqsave(&chip->lock, flags);
884 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
885 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
886 CS4231_CALIB_MODE);
887 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
888 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
889 spin_unlock_irqrestore(&chip->lock, flags);
890 snd_cs4231_mce_down(chip);
891
892 #ifdef SNDRV_DEBUG_MCE
893 snd_printdd("init: (2)\n");
894 #endif
895
896 snd_cs4231_mce_up(chip);
897 spin_lock_irqsave(&chip->lock, flags);
898 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
899 spin_unlock_irqrestore(&chip->lock, flags);
900 snd_cs4231_mce_down(chip);
901
902 #ifdef SNDRV_DEBUG_MCE
903 snd_printdd("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
904 #endif
905
906 spin_lock_irqsave(&chip->lock, flags);
907 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
908 spin_unlock_irqrestore(&chip->lock, flags);
909
910 snd_cs4231_mce_up(chip);
911 spin_lock_irqsave(&chip->lock, flags);
912 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
913 spin_unlock_irqrestore(&chip->lock, flags);
914 snd_cs4231_mce_down(chip);
915
916 #ifdef SNDRV_DEBUG_MCE
917 snd_printdd("init: (4)\n");
918 #endif
919
920 snd_cs4231_mce_up(chip);
921 spin_lock_irqsave(&chip->lock, flags);
922 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
923 spin_unlock_irqrestore(&chip->lock, flags);
924 snd_cs4231_mce_down(chip);
925
926 #ifdef SNDRV_DEBUG_MCE
927 snd_printdd("init: (5)\n");
928 #endif
929 }
930
931 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
932 {
933 unsigned long flags;
934
935 down(&chip->open_mutex);
936 if ((chip->mode & mode)) {
937 up(&chip->open_mutex);
938 return -EAGAIN;
939 }
940 if (chip->mode & CS4231_MODE_OPEN) {
941 chip->mode |= mode;
942 up(&chip->open_mutex);
943 return 0;
944 }
945 /* ok. now enable and ack CODEC IRQ */
946 spin_lock_irqsave(&chip->lock, flags);
947 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
948 CS4231_RECORD_IRQ |
949 CS4231_TIMER_IRQ);
950 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
951 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
952 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
953
954 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
955 CS4231_RECORD_IRQ |
956 CS4231_TIMER_IRQ);
957 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
958
959 spin_unlock_irqrestore(&chip->lock, flags);
960
961 chip->mode = mode;
962 up(&chip->open_mutex);
963 return 0;
964 }
965
966 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
967 {
968 unsigned long flags;
969
970 down(&chip->open_mutex);
971 chip->mode &= ~mode;
972 if (chip->mode & CS4231_MODE_OPEN) {
973 up(&chip->open_mutex);
974 return;
975 }
976 snd_cs4231_calibrate_mute(chip, 1);
977
978 /* disable IRQ */
979 spin_lock_irqsave(&chip->lock, flags);
980 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
981 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
982 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
983
984 /* now disable record & playback */
985
986 if (chip->image[CS4231_IFACE_CTRL] &
987 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
988 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
989 spin_unlock_irqrestore(&chip->lock, flags);
990 snd_cs4231_mce_up(chip);
991 spin_lock_irqsave(&chip->lock, flags);
992 chip->image[CS4231_IFACE_CTRL] &=
993 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
994 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
995 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
996 spin_unlock_irqrestore(&chip->lock, flags);
997 snd_cs4231_mce_down(chip);
998 spin_lock_irqsave(&chip->lock, flags);
999 }
1000
1001 /* clear IRQ again */
1002 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
1003 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1004 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1005 spin_unlock_irqrestore(&chip->lock, flags);
1006
1007 snd_cs4231_calibrate_mute(chip, 0);
1008
1009 chip->mode = 0;
1010 up(&chip->open_mutex);
1011 }
1012
1013 /*
1014 * timer open/close
1015 */
1016
1017 static int snd_cs4231_timer_open(struct snd_timer *timer)
1018 {
1019 struct snd_cs4231 *chip = snd_timer_chip(timer);
1020 snd_cs4231_open(chip, CS4231_MODE_TIMER);
1021 return 0;
1022 }
1023
1024 static int snd_cs4231_timer_close(struct snd_timer * timer)
1025 {
1026 struct snd_cs4231 *chip = snd_timer_chip(timer);
1027 snd_cs4231_close(chip, CS4231_MODE_TIMER);
1028 return 0;
1029 }
1030
1031 static struct snd_timer_hardware snd_cs4231_timer_table =
1032 {
1033 .flags = SNDRV_TIMER_HW_AUTO,
1034 .resolution = 9945,
1035 .ticks = 65535,
1036 .open = snd_cs4231_timer_open,
1037 .close = snd_cs4231_timer_close,
1038 .c_resolution = snd_cs4231_timer_resolution,
1039 .start = snd_cs4231_timer_start,
1040 .stop = snd_cs4231_timer_stop,
1041 };
1042
1043 /*
1044 * ok.. exported functions..
1045 */
1046
1047 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
1048 struct snd_pcm_hw_params *hw_params)
1049 {
1050 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1051 unsigned char new_pdfr;
1052 int err;
1053
1054 if ((err = snd_pcm_lib_malloc_pages(substream,
1055 params_buffer_bytes(hw_params))) < 0)
1056 return err;
1057 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1058 params_channels(hw_params)) |
1059 snd_cs4231_get_rate(params_rate(hw_params));
1060 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
1061
1062 return 0;
1063 }
1064
1065 static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
1066 {
1067 return snd_pcm_lib_free_pages(substream);
1068 }
1069
1070 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
1071 {
1072 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1073 struct snd_pcm_runtime *runtime = substream->runtime;
1074 unsigned long flags;
1075
1076 spin_lock_irqsave(&chip->lock, flags);
1077
1078 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
1079 CS4231_PLAYBACK_PIO);
1080
1081 if (runtime->period_size > 0xffff + 1)
1082 BUG();
1083
1084 chip->p_periods_sent = 0;
1085 spin_unlock_irqrestore(&chip->lock, flags);
1086
1087 return 0;
1088 }
1089
1090 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
1091 struct snd_pcm_hw_params *hw_params)
1092 {
1093 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1094 unsigned char new_cdfr;
1095 int err;
1096
1097 if ((err = snd_pcm_lib_malloc_pages(substream,
1098 params_buffer_bytes(hw_params))) < 0)
1099 return err;
1100 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1101 params_channels(hw_params)) |
1102 snd_cs4231_get_rate(params_rate(hw_params));
1103 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
1104
1105 return 0;
1106 }
1107
1108 static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
1109 {
1110 return snd_pcm_lib_free_pages(substream);
1111 }
1112
1113 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
1114 {
1115 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1116 unsigned long flags;
1117
1118 spin_lock_irqsave(&chip->lock, flags);
1119 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
1120 CS4231_RECORD_PIO);
1121
1122
1123 chip->c_periods_sent = 0;
1124 spin_unlock_irqrestore(&chip->lock, flags);
1125
1126 return 0;
1127 }
1128
1129 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
1130 {
1131 unsigned long flags;
1132 unsigned char res;
1133
1134 spin_lock_irqsave(&chip->lock, flags);
1135 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
1136 spin_unlock_irqrestore(&chip->lock, flags);
1137
1138 if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */
1139 chip->capture_substream->runtime->overrange++;
1140 }
1141
1142 static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
1143 {
1144 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
1145 snd_pcm_period_elapsed(chip->playback_substream);
1146 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
1147 &chip->p_periods_sent);
1148 }
1149 }
1150
1151 static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
1152 {
1153 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
1154 snd_pcm_period_elapsed(chip->capture_substream);
1155 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
1156 &chip->c_periods_sent);
1157 }
1158 }
1159
1160 static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
1161 {
1162 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1163 struct cs4231_dma_control *dma_cont = &chip->p_dma;
1164 size_t ptr;
1165
1166 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1167 return 0;
1168 ptr = dma_cont->address(dma_cont);
1169 if (ptr != 0)
1170 ptr -= substream->runtime->dma_addr;
1171
1172 return bytes_to_frames(substream->runtime, ptr);
1173 }
1174
1175 static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
1176 {
1177 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1178 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1179 size_t ptr;
1180
1181 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1182 return 0;
1183 ptr = dma_cont->address(dma_cont);
1184 if (ptr != 0)
1185 ptr -= substream->runtime->dma_addr;
1186
1187 return bytes_to_frames(substream->runtime, ptr);
1188 }
1189
1190 /*
1191
1192 */
1193
1194 static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
1195 {
1196 unsigned long flags;
1197 int i, id, vers;
1198 unsigned char *ptr;
1199
1200 id = vers = 0;
1201 for (i = 0; i < 50; i++) {
1202 mb();
1203 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
1204 udelay(2000);
1205 else {
1206 spin_lock_irqsave(&chip->lock, flags);
1207 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1208 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1209 vers = snd_cs4231_in(chip, CS4231_VERSION);
1210 spin_unlock_irqrestore(&chip->lock, flags);
1211 if (id == 0x0a)
1212 break; /* this is valid value */
1213 }
1214 }
1215 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1216 if (id != 0x0a)
1217 return -ENODEV; /* no valid device found */
1218
1219 spin_lock_irqsave(&chip->lock, flags);
1220
1221
1222 /* Reset DMA engine (sbus only). */
1223 chip->p_dma.reset(chip);
1224
1225 __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */
1226 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS));
1227 mb();
1228
1229 spin_unlock_irqrestore(&chip->lock, flags);
1230
1231 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1232 chip->image[CS4231_IFACE_CTRL] =
1233 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1234 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1235 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1236 if (vers & 0x20)
1237 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1238
1239 ptr = (unsigned char *) &chip->image;
1240
1241 snd_cs4231_mce_down(chip);
1242
1243 spin_lock_irqsave(&chip->lock, flags);
1244
1245 for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */
1246 snd_cs4231_out(chip, i, *ptr++);
1247
1248 spin_unlock_irqrestore(&chip->lock, flags);
1249
1250 snd_cs4231_mce_up(chip);
1251
1252 snd_cs4231_mce_down(chip);
1253
1254 mdelay(2);
1255
1256 return 0; /* all things are ok.. */
1257 }
1258
1259 static struct snd_pcm_hardware snd_cs4231_playback =
1260 {
1261 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1262 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1263 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1264 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1265 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1266 SNDRV_PCM_FMTBIT_S16_BE),
1267 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1268 .rate_min = 5510,
1269 .rate_max = 48000,
1270 .channels_min = 1,
1271 .channels_max = 2,
1272 .buffer_bytes_max = (32*1024),
1273 .period_bytes_min = 4096,
1274 .period_bytes_max = (32*1024),
1275 .periods_min = 1,
1276 .periods_max = 1024,
1277 };
1278
1279 static struct snd_pcm_hardware snd_cs4231_capture =
1280 {
1281 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1282 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1283 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1284 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1285 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1286 SNDRV_PCM_FMTBIT_S16_BE),
1287 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1288 .rate_min = 5510,
1289 .rate_max = 48000,
1290 .channels_min = 1,
1291 .channels_max = 2,
1292 .buffer_bytes_max = (32*1024),
1293 .period_bytes_min = 4096,
1294 .period_bytes_max = (32*1024),
1295 .periods_min = 1,
1296 .periods_max = 1024,
1297 };
1298
1299 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1300 {
1301 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1302 struct snd_pcm_runtime *runtime = substream->runtime;
1303 int err;
1304
1305 runtime->hw = snd_cs4231_playback;
1306
1307 if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
1308 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1309 return err;
1310 }
1311 chip->playback_substream = substream;
1312 chip->p_periods_sent = 0;
1313 snd_pcm_set_sync(substream);
1314 snd_cs4231_xrate(runtime);
1315
1316 return 0;
1317 }
1318
1319 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1320 {
1321 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1322 struct snd_pcm_runtime *runtime = substream->runtime;
1323 int err;
1324
1325 runtime->hw = snd_cs4231_capture;
1326
1327 if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
1328 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1329 return err;
1330 }
1331 chip->capture_substream = substream;
1332 chip->c_periods_sent = 0;
1333 snd_pcm_set_sync(substream);
1334 snd_cs4231_xrate(runtime);
1335
1336 return 0;
1337 }
1338
1339 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1340 {
1341 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1342
1343 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1344 chip->playback_substream = NULL;
1345
1346 return 0;
1347 }
1348
1349 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1350 {
1351 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1352
1353 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1354 chip->capture_substream = NULL;
1355
1356 return 0;
1357 }
1358
1359 /* XXX We can do some power-management, in particular on EBUS using
1360 * XXX the audio AUXIO register...
1361 */
1362
1363 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1364 .open = snd_cs4231_playback_open,
1365 .close = snd_cs4231_playback_close,
1366 .ioctl = snd_pcm_lib_ioctl,
1367 .hw_params = snd_cs4231_playback_hw_params,
1368 .hw_free = snd_cs4231_playback_hw_free,
1369 .prepare = snd_cs4231_playback_prepare,
1370 .trigger = snd_cs4231_trigger,
1371 .pointer = snd_cs4231_playback_pointer,
1372 };
1373
1374 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1375 .open = snd_cs4231_capture_open,
1376 .close = snd_cs4231_capture_close,
1377 .ioctl = snd_pcm_lib_ioctl,
1378 .hw_params = snd_cs4231_capture_hw_params,
1379 .hw_free = snd_cs4231_capture_hw_free,
1380 .prepare = snd_cs4231_capture_prepare,
1381 .trigger = snd_cs4231_trigger,
1382 .pointer = snd_cs4231_capture_pointer,
1383 };
1384
1385 static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
1386 {
1387 struct snd_pcm *pcm;
1388 int err;
1389
1390 if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0)
1391 return err;
1392
1393 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
1394 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
1395
1396 /* global setup */
1397 pcm->private_data = chip;
1398 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1399 strcpy(pcm->name, "CS4231");
1400
1401 chip->p_dma.preallocate(chip, pcm);
1402
1403 chip->pcm = pcm;
1404
1405 return 0;
1406 }
1407
1408 static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
1409 {
1410 struct snd_timer *timer;
1411 struct snd_timer_id tid;
1412 int err;
1413
1414 /* Timer initialization */
1415 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1416 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1417 tid.card = chip->card->number;
1418 tid.device = 0;
1419 tid.subdevice = 0;
1420 if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1421 return err;
1422 strcpy(timer->name, "CS4231");
1423 timer->private_data = chip;
1424 timer->hw = snd_cs4231_timer_table;
1425 chip->timer = timer;
1426
1427 return 0;
1428 }
1429
1430 /*
1431 * MIXER part
1432 */
1433
1434 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1435 struct snd_ctl_elem_info *uinfo)
1436 {
1437 static char *texts[4] = {
1438 "Line", "CD", "Mic", "Mix"
1439 };
1440 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1441
1442 snd_assert(chip->card != NULL, return -EINVAL);
1443 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1444 uinfo->count = 2;
1445 uinfo->value.enumerated.items = 4;
1446 if (uinfo->value.enumerated.item > 3)
1447 uinfo->value.enumerated.item = 3;
1448 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1449
1450 return 0;
1451 }
1452
1453 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1454 struct snd_ctl_elem_value *ucontrol)
1455 {
1456 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1457 unsigned long flags;
1458
1459 spin_lock_irqsave(&chip->lock, flags);
1460 ucontrol->value.enumerated.item[0] =
1461 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1462 ucontrol->value.enumerated.item[1] =
1463 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1464 spin_unlock_irqrestore(&chip->lock, flags);
1465
1466 return 0;
1467 }
1468
1469 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1470 struct snd_ctl_elem_value *ucontrol)
1471 {
1472 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1473 unsigned long flags;
1474 unsigned short left, right;
1475 int change;
1476
1477 if (ucontrol->value.enumerated.item[0] > 3 ||
1478 ucontrol->value.enumerated.item[1] > 3)
1479 return -EINVAL;
1480 left = ucontrol->value.enumerated.item[0] << 6;
1481 right = ucontrol->value.enumerated.item[1] << 6;
1482
1483 spin_lock_irqsave(&chip->lock, flags);
1484
1485 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1486 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1487 change = left != chip->image[CS4231_LEFT_INPUT] ||
1488 right != chip->image[CS4231_RIGHT_INPUT];
1489 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1490 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1491
1492 spin_unlock_irqrestore(&chip->lock, flags);
1493
1494 return change;
1495 }
1496
1497 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1498 struct snd_ctl_elem_info *uinfo)
1499 {
1500 int mask = (kcontrol->private_value >> 16) & 0xff;
1501
1502 uinfo->type = (mask == 1) ?
1503 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1504 uinfo->count = 1;
1505 uinfo->value.integer.min = 0;
1506 uinfo->value.integer.max = mask;
1507
1508 return 0;
1509 }
1510
1511 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1512 struct snd_ctl_elem_value *ucontrol)
1513 {
1514 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1515 unsigned long flags;
1516 int reg = kcontrol->private_value & 0xff;
1517 int shift = (kcontrol->private_value >> 8) & 0xff;
1518 int mask = (kcontrol->private_value >> 16) & 0xff;
1519 int invert = (kcontrol->private_value >> 24) & 0xff;
1520
1521 spin_lock_irqsave(&chip->lock, flags);
1522
1523 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1524
1525 spin_unlock_irqrestore(&chip->lock, flags);
1526
1527 if (invert)
1528 ucontrol->value.integer.value[0] =
1529 (mask - ucontrol->value.integer.value[0]);
1530
1531 return 0;
1532 }
1533
1534 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1535 struct snd_ctl_elem_value *ucontrol)
1536 {
1537 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1538 unsigned long flags;
1539 int reg = kcontrol->private_value & 0xff;
1540 int shift = (kcontrol->private_value >> 8) & 0xff;
1541 int mask = (kcontrol->private_value >> 16) & 0xff;
1542 int invert = (kcontrol->private_value >> 24) & 0xff;
1543 int change;
1544 unsigned short val;
1545
1546 val = (ucontrol->value.integer.value[0] & mask);
1547 if (invert)
1548 val = mask - val;
1549 val <<= shift;
1550
1551 spin_lock_irqsave(&chip->lock, flags);
1552
1553 val = (chip->image[reg] & ~(mask << shift)) | val;
1554 change = val != chip->image[reg];
1555 snd_cs4231_out(chip, reg, val);
1556
1557 spin_unlock_irqrestore(&chip->lock, flags);
1558
1559 return change;
1560 }
1561
1562 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1563 struct snd_ctl_elem_info *uinfo)
1564 {
1565 int mask = (kcontrol->private_value >> 24) & 0xff;
1566
1567 uinfo->type = mask == 1 ?
1568 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1569 uinfo->count = 2;
1570 uinfo->value.integer.min = 0;
1571 uinfo->value.integer.max = mask;
1572
1573 return 0;
1574 }
1575
1576 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1577 struct snd_ctl_elem_value *ucontrol)
1578 {
1579 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1580 unsigned long flags;
1581 int left_reg = kcontrol->private_value & 0xff;
1582 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1583 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1584 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1585 int mask = (kcontrol->private_value >> 24) & 0xff;
1586 int invert = (kcontrol->private_value >> 22) & 1;
1587
1588 spin_lock_irqsave(&chip->lock, flags);
1589
1590 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1591 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1592
1593 spin_unlock_irqrestore(&chip->lock, flags);
1594
1595 if (invert) {
1596 ucontrol->value.integer.value[0] =
1597 (mask - ucontrol->value.integer.value[0]);
1598 ucontrol->value.integer.value[1] =
1599 (mask - ucontrol->value.integer.value[1]);
1600 }
1601
1602 return 0;
1603 }
1604
1605 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1606 struct snd_ctl_elem_value *ucontrol)
1607 {
1608 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1609 unsigned long flags;
1610 int left_reg = kcontrol->private_value & 0xff;
1611 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1612 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1613 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1614 int mask = (kcontrol->private_value >> 24) & 0xff;
1615 int invert = (kcontrol->private_value >> 22) & 1;
1616 int change;
1617 unsigned short val1, val2;
1618
1619 val1 = ucontrol->value.integer.value[0] & mask;
1620 val2 = ucontrol->value.integer.value[1] & mask;
1621 if (invert) {
1622 val1 = mask - val1;
1623 val2 = mask - val2;
1624 }
1625 val1 <<= shift_left;
1626 val2 <<= shift_right;
1627
1628 spin_lock_irqsave(&chip->lock, flags);
1629
1630 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1631 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1632 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1633 snd_cs4231_out(chip, left_reg, val1);
1634 snd_cs4231_out(chip, right_reg, val2);
1635
1636 spin_unlock_irqrestore(&chip->lock, flags);
1637
1638 return change;
1639 }
1640
1641 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1642 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1643 .info = snd_cs4231_info_single, \
1644 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1645 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1646
1647 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1648 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1649 .info = snd_cs4231_info_double, \
1650 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1651 .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1652
1653 static struct snd_kcontrol_new snd_cs4231_controls[] __initdata = {
1654 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1655 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1656 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1657 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1658 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1659 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1660 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1661 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1662 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1663 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1664 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1665 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1666 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
1667 {
1668 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1669 .name = "Capture Source",
1670 .info = snd_cs4231_info_mux,
1671 .get = snd_cs4231_get_mux,
1672 .put = snd_cs4231_put_mux,
1673 },
1674 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
1675 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1676 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1677 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */
1678 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1679 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1680 };
1681
1682 static int __init snd_cs4231_mixer(struct snd_cs4231 *chip)
1683 {
1684 struct snd_card *card;
1685 int err, idx;
1686
1687 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1688
1689 card = chip->card;
1690
1691 strcpy(card->mixername, chip->pcm->name);
1692
1693 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1694 if ((err = snd_ctl_add(card,
1695 snd_ctl_new1(&snd_cs4231_controls[idx],
1696 chip))) < 0)
1697 return err;
1698 }
1699 return 0;
1700 }
1701
1702 static int dev;
1703
1704 static int __init cs4231_attach_begin(struct snd_card **rcard)
1705 {
1706 struct snd_card *card;
1707
1708 *rcard = NULL;
1709
1710 if (dev >= SNDRV_CARDS)
1711 return -ENODEV;
1712
1713 if (!enable[dev]) {
1714 dev++;
1715 return -ENOENT;
1716 }
1717
1718 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1719 if (card == NULL)
1720 return -ENOMEM;
1721
1722 strcpy(card->driver, "CS4231");
1723 strcpy(card->shortname, "Sun CS4231");
1724
1725 *rcard = card;
1726 return 0;
1727 }
1728
1729 static int __init cs4231_attach_finish(struct snd_card *card, struct snd_cs4231 *chip)
1730 {
1731 int err;
1732
1733 if ((err = snd_cs4231_pcm(chip)) < 0)
1734 goto out_err;
1735
1736 if ((err = snd_cs4231_mixer(chip)) < 0)
1737 goto out_err;
1738
1739 if ((err = snd_cs4231_timer(chip)) < 0)
1740 goto out_err;
1741
1742 if ((err = snd_card_register(card)) < 0)
1743 goto out_err;
1744
1745 chip->next = cs4231_list;
1746 cs4231_list = chip;
1747
1748 dev++;
1749 return 0;
1750
1751 out_err:
1752 snd_card_free(card);
1753 return err;
1754 }
1755
1756 #ifdef SBUS_SUPPORT
1757
1758 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1759 {
1760 unsigned long flags;
1761 unsigned char status;
1762 u32 csr;
1763 struct snd_cs4231 *chip = dev_id;
1764
1765 /*This is IRQ is not raised by the cs4231*/
1766 if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ))
1767 return IRQ_NONE;
1768
1769 /* ACK the APC interrupt. */
1770 csr = sbus_readl(chip->port + APCCSR);
1771
1772 sbus_writel(csr, chip->port + APCCSR);
1773
1774 if ((csr & APC_PDMA_READY) &&
1775 (csr & APC_PLAY_INT) &&
1776 (csr & APC_XINT_PNVA) &&
1777 !(csr & APC_XINT_EMPT))
1778 snd_cs4231_play_callback(chip);
1779
1780 if ((csr & APC_CDMA_READY) &&
1781 (csr & APC_CAPT_INT) &&
1782 (csr & APC_XINT_CNVA) &&
1783 !(csr & APC_XINT_EMPT))
1784 snd_cs4231_capture_callback(chip);
1785
1786 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1787
1788 if (status & CS4231_TIMER_IRQ) {
1789 if (chip->timer)
1790 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1791 }
1792
1793 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1794 snd_cs4231_overrange(chip);
1795
1796 /* ACK the CS4231 interrupt. */
1797 spin_lock_irqsave(&chip->lock, flags);
1798 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1799 spin_unlock_irqrestore(&chip->lock, flags);
1800
1801 return 0;
1802 }
1803
1804 /*
1805 * SBUS DMA routines
1806 */
1807
1808 static int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
1809 {
1810 unsigned long flags;
1811 u32 test, csr;
1812 int err;
1813 struct sbus_dma_info *base = &dma_cont->sbus_info;
1814
1815 if (len >= (1 << 24))
1816 return -EINVAL;
1817 spin_lock_irqsave(&base->lock, flags);
1818 csr = sbus_readl(base->regs + APCCSR);
1819 err = -EINVAL;
1820 test = APC_CDMA_READY;
1821 if ( base->dir == APC_PLAY )
1822 test = APC_PDMA_READY;
1823 if (!(csr & test))
1824 goto out;
1825 err = -EBUSY;
1826 csr = sbus_readl(base->regs + APCCSR);
1827 test = APC_XINT_CNVA;
1828 if ( base->dir == APC_PLAY )
1829 test = APC_XINT_PNVA;
1830 if (!(csr & test))
1831 goto out;
1832 err = 0;
1833 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1834 sbus_writel(len, base->regs + base->dir + APCNC);
1835 out:
1836 spin_unlock_irqrestore(&base->lock, flags);
1837 return err;
1838 }
1839
1840 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1841 {
1842 unsigned long flags;
1843 u32 csr, test;
1844 struct sbus_dma_info *base = &dma_cont->sbus_info;
1845
1846 spin_lock_irqsave(&base->lock, flags);
1847 csr = sbus_readl(base->regs + APCCSR);
1848 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1849 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1850 APC_XINT_PENA;
1851 if ( base->dir == APC_RECORD )
1852 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1853 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1854 csr |= test;
1855 sbus_writel(csr, base->regs + APCCSR);
1856 spin_unlock_irqrestore(&base->lock, flags);
1857 }
1858
1859 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1860 {
1861 unsigned long flags;
1862 u32 csr, shift;
1863 struct sbus_dma_info *base = &dma_cont->sbus_info;
1864
1865 spin_lock_irqsave(&base->lock, flags);
1866 if (!on) {
1867 if (base->dir == APC_PLAY) {
1868 sbus_writel(0, base->regs + base->dir + APCNVA);
1869 sbus_writel(1, base->regs + base->dir + APCC);
1870 }
1871 else
1872 {
1873 sbus_writel(0, base->regs + base->dir + APCNC);
1874 sbus_writel(0, base->regs + base->dir + APCVA);
1875 }
1876 }
1877 udelay(600);
1878 csr = sbus_readl(base->regs + APCCSR);
1879 shift = 0;
1880 if ( base->dir == APC_PLAY )
1881 shift = 1;
1882 if (on)
1883 csr &= ~(APC_CPAUSE << shift);
1884 else
1885 csr |= (APC_CPAUSE << shift);
1886 sbus_writel(csr, base->regs + APCCSR);
1887 if (on)
1888 csr |= (APC_CDMA_READY << shift);
1889 else
1890 csr &= ~(APC_CDMA_READY << shift);
1891 sbus_writel(csr, base->regs + APCCSR);
1892
1893 spin_unlock_irqrestore(&base->lock, flags);
1894 }
1895
1896 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1897 {
1898 struct sbus_dma_info *base = &dma_cont->sbus_info;
1899
1900 return sbus_readl(base->regs + base->dir + APCVA);
1901 }
1902
1903 static void sbus_dma_reset(struct snd_cs4231 *chip)
1904 {
1905 sbus_writel(APC_CHIP_RESET, chip->port + APCCSR);
1906 sbus_writel(0x00, chip->port + APCCSR);
1907 sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET,
1908 chip->port + APCCSR);
1909
1910 udelay(20);
1911
1912 sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET,
1913 chip->port + APCCSR);
1914 sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA |
1915 APC_XINT_PENA |
1916 APC_XINT_CENA),
1917 chip->port + APCCSR);
1918 }
1919
1920 static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
1921 {
1922 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
1923 snd_dma_sbus_data(chip->dev_u.sdev),
1924 64*1024, 128*1024);
1925 }
1926
1927 /*
1928 * Init and exit routines
1929 */
1930
1931 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1932 {
1933 if (chip->irq[0])
1934 free_irq(chip->irq[0], chip);
1935
1936 if (chip->port)
1937 sbus_iounmap(chip->port, chip->regs_size);
1938
1939 kfree(chip);
1940
1941 return 0;
1942 }
1943
1944 static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1945 {
1946 struct snd_cs4231 *cp = device->device_data;
1947
1948 return snd_cs4231_sbus_free(cp);
1949 }
1950
1951 static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1952 .dev_free = snd_cs4231_sbus_dev_free,
1953 };
1954
1955 static int __init snd_cs4231_sbus_create(struct snd_card *card,
1956 struct sbus_dev *sdev,
1957 int dev,
1958 struct snd_cs4231 **rchip)
1959 {
1960 struct snd_cs4231 *chip;
1961 int err;
1962
1963 *rchip = NULL;
1964 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1965 if (chip == NULL)
1966 return -ENOMEM;
1967
1968 spin_lock_init(&chip->lock);
1969 spin_lock_init(&chip->c_dma.sbus_info.lock);
1970 spin_lock_init(&chip->p_dma.sbus_info.lock);
1971 init_MUTEX(&chip->mce_mutex);
1972 init_MUTEX(&chip->open_mutex);
1973 chip->card = card;
1974 chip->dev_u.sdev = sdev;
1975 chip->regs_size = sdev->reg_addrs[0].reg_size;
1976 memcpy(&chip->image, &snd_cs4231_original_image,
1977 sizeof(snd_cs4231_original_image));
1978
1979 chip->port = sbus_ioremap(&sdev->resource[0], 0,
1980 chip->regs_size, "cs4231");
1981 if (!chip->port) {
1982 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1983 return -EIO;
1984 }
1985
1986 chip->c_dma.sbus_info.regs = chip->port;
1987 chip->p_dma.sbus_info.regs = chip->port;
1988 chip->c_dma.sbus_info.dir = APC_RECORD;
1989 chip->p_dma.sbus_info.dir = APC_PLAY;
1990
1991 chip->p_dma.prepare = sbus_dma_prepare;
1992 chip->p_dma.enable = sbus_dma_enable;
1993 chip->p_dma.request = sbus_dma_request;
1994 chip->p_dma.address = sbus_dma_addr;
1995 chip->p_dma.reset = sbus_dma_reset;
1996 chip->p_dma.preallocate = sbus_dma_preallocate;
1997
1998 chip->c_dma.prepare = sbus_dma_prepare;
1999 chip->c_dma.enable = sbus_dma_enable;
2000 chip->c_dma.request = sbus_dma_request;
2001 chip->c_dma.address = sbus_dma_addr;
2002 chip->c_dma.reset = sbus_dma_reset;
2003 chip->c_dma.preallocate = sbus_dma_preallocate;
2004
2005 if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
2006 SA_SHIRQ, "cs4231", chip)) {
2007 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %s\n",
2008 dev,
2009 __irq_itoa(sdev->irqs[0]));
2010 snd_cs4231_sbus_free(chip);
2011 return -EBUSY;
2012 }
2013 chip->irq[0] = sdev->irqs[0];
2014
2015 if (snd_cs4231_probe(chip) < 0) {
2016 snd_cs4231_sbus_free(chip);
2017 return -ENODEV;
2018 }
2019 snd_cs4231_init(chip);
2020
2021 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2022 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
2023 snd_cs4231_sbus_free(chip);
2024 return err;
2025 }
2026
2027 *rchip = chip;
2028 return 0;
2029 }
2030
2031 static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
2032 {
2033 struct resource *rp = &sdev->resource[0];
2034 struct snd_cs4231 *cp;
2035 struct snd_card *card;
2036 int err;
2037
2038 err = cs4231_attach_begin(&card);
2039 if (err)
2040 return err;
2041
2042 sprintf(card->longname, "%s at 0x%02lx:0x%08lx, irq %s",
2043 card->shortname,
2044 rp->flags & 0xffL,
2045 rp->start,
2046 __irq_itoa(sdev->irqs[0]));
2047
2048 if ((err = snd_cs4231_sbus_create(card, sdev, dev, &cp)) < 0) {
2049 snd_card_free(card);
2050 return err;
2051 }
2052
2053 return cs4231_attach_finish(card, cp);
2054 }
2055 #endif
2056
2057 #ifdef EBUS_SUPPORT
2058
2059 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie)
2060 {
2061 struct snd_cs4231 *chip = cookie;
2062
2063 snd_cs4231_play_callback(chip);
2064 }
2065
2066 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie)
2067 {
2068 struct snd_cs4231 *chip = cookie;
2069
2070 snd_cs4231_capture_callback(chip);
2071 }
2072
2073 /*
2074 * EBUS DMA wrappers
2075 */
2076
2077 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
2078 {
2079 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
2080 }
2081
2082 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
2083 {
2084 ebus_dma_enable(&dma_cont->ebus_info, on);
2085 }
2086
2087 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
2088 {
2089 ebus_dma_prepare(&dma_cont->ebus_info, dir);
2090 }
2091
2092 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
2093 {
2094 return ebus_dma_addr(&dma_cont->ebus_info);
2095 }
2096
2097 static void _ebus_dma_reset(struct snd_cs4231 *chip)
2098 {
2099 return;
2100 }
2101
2102 static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
2103 {
2104 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
2105 snd_dma_pci_data(chip->dev_u.pdev),
2106 64*1024, 128*1024);
2107 }
2108
2109 /*
2110 * Init and exit routines
2111 */
2112
2113 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
2114 {
2115 if (chip->c_dma.ebus_info.regs) {
2116 ebus_dma_unregister(&chip->c_dma.ebus_info);
2117 iounmap(chip->c_dma.ebus_info.regs);
2118 }
2119 if (chip->p_dma.ebus_info.regs) {
2120 ebus_dma_unregister(&chip->p_dma.ebus_info);
2121 iounmap(chip->p_dma.ebus_info.regs);
2122 }
2123
2124 if (chip->port)
2125 iounmap(chip->port);
2126
2127 kfree(chip);
2128
2129 return 0;
2130 }
2131
2132 static int snd_cs4231_ebus_dev_free(struct snd_device *device)
2133 {
2134 struct snd_cs4231 *cp = device->device_data;
2135
2136 return snd_cs4231_ebus_free(cp);
2137 }
2138
2139 static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
2140 .dev_free = snd_cs4231_ebus_dev_free,
2141 };
2142
2143 static int __init snd_cs4231_ebus_create(struct snd_card *card,
2144 struct linux_ebus_device *edev,
2145 int dev,
2146 struct snd_cs4231 **rchip)
2147 {
2148 struct snd_cs4231 *chip;
2149 int err;
2150
2151 *rchip = NULL;
2152 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2153 if (chip == NULL)
2154 return -ENOMEM;
2155
2156 spin_lock_init(&chip->lock);
2157 spin_lock_init(&chip->c_dma.ebus_info.lock);
2158 spin_lock_init(&chip->p_dma.ebus_info.lock);
2159 init_MUTEX(&chip->mce_mutex);
2160 init_MUTEX(&chip->open_mutex);
2161 chip->flags |= CS4231_FLAG_EBUS;
2162 chip->card = card;
2163 chip->dev_u.pdev = edev->bus->self;
2164 memcpy(&chip->image, &snd_cs4231_original_image,
2165 sizeof(snd_cs4231_original_image));
2166 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
2167 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2168 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
2169 chip->c_dma.ebus_info.client_cookie = chip;
2170 chip->c_dma.ebus_info.irq = edev->irqs[0];
2171 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
2172 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2173 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
2174 chip->p_dma.ebus_info.client_cookie = chip;
2175 chip->p_dma.ebus_info.irq = edev->irqs[1];
2176
2177 chip->p_dma.prepare = _ebus_dma_prepare;
2178 chip->p_dma.enable = _ebus_dma_enable;
2179 chip->p_dma.request = _ebus_dma_request;
2180 chip->p_dma.address = _ebus_dma_addr;
2181 chip->p_dma.reset = _ebus_dma_reset;
2182 chip->p_dma.preallocate = _ebus_dma_preallocate;
2183
2184 chip->c_dma.prepare = _ebus_dma_prepare;
2185 chip->c_dma.enable = _ebus_dma_enable;
2186 chip->c_dma.request = _ebus_dma_request;
2187 chip->c_dma.address = _ebus_dma_addr;
2188 chip->c_dma.reset = _ebus_dma_reset;
2189 chip->c_dma.preallocate = _ebus_dma_preallocate;
2190
2191 chip->port = ioremap(edev->resource[0].start, 0x10);
2192 chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10);
2193 chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10);
2194 if (!chip->port || !chip->p_dma.ebus_info.regs || !chip->c_dma.ebus_info.regs) {
2195 snd_cs4231_ebus_free(chip);
2196 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2197 return -EIO;
2198 }
2199
2200 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2201 snd_cs4231_ebus_free(chip);
2202 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", dev);
2203 return -EBUSY;
2204 }
2205 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2206 snd_cs4231_ebus_free(chip);
2207 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", dev);
2208 return -EBUSY;
2209 }
2210
2211 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2212 snd_cs4231_ebus_free(chip);
2213 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", dev);
2214 return -EBUSY;
2215 }
2216 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2217 snd_cs4231_ebus_free(chip);
2218 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2219 return -EBUSY;
2220 }
2221
2222 if (snd_cs4231_probe(chip) < 0) {
2223 snd_cs4231_ebus_free(chip);
2224 return -ENODEV;
2225 }
2226 snd_cs4231_init(chip);
2227
2228 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2229 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2230 snd_cs4231_ebus_free(chip);
2231 return err;
2232 }
2233
2234 *rchip = chip;
2235 return 0;
2236 }
2237
2238 static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
2239 {
2240 struct snd_card *card;
2241 struct snd_cs4231 *chip;
2242 int err;
2243
2244 err = cs4231_attach_begin(&card);
2245 if (err)
2246 return err;
2247
2248 sprintf(card->longname, "%s at 0x%lx, irq %s",
2249 card->shortname,
2250 edev->resource[0].start,
2251 __irq_itoa(edev->irqs[0]));
2252
2253 if ((err = snd_cs4231_ebus_create(card, edev, dev, &chip)) < 0) {
2254 snd_card_free(card);
2255 return err;
2256 }
2257
2258 return cs4231_attach_finish(card, chip);
2259 }
2260 #endif
2261
2262 static int __init cs4231_init(void)
2263 {
2264 #ifdef SBUS_SUPPORT
2265 struct sbus_bus *sbus;
2266 struct sbus_dev *sdev;
2267 #endif
2268 #ifdef EBUS_SUPPORT
2269 struct linux_ebus *ebus;
2270 struct linux_ebus_device *edev;
2271 #endif
2272 int found;
2273
2274 found = 0;
2275
2276 #ifdef SBUS_SUPPORT
2277 for_all_sbusdev(sdev, sbus) {
2278 if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
2279 if (cs4231_sbus_attach(sdev) == 0)
2280 found++;
2281 }
2282 }
2283 #endif
2284 #ifdef EBUS_SUPPORT
2285 for_each_ebus(ebus) {
2286 for_each_ebusdev(edev, ebus) {
2287 int match = 0;
2288
2289 if (!strcmp(edev->prom_name, "SUNW,CS4231")) {
2290 match = 1;
2291 } else if (!strcmp(edev->prom_name, "audio")) {
2292 char compat[16];
2293
2294 prom_getstring(edev->prom_node, "compatible",
2295 compat, sizeof(compat));
2296 compat[15] = '\0';
2297 if (!strcmp(compat, "SUNW,CS4231"))
2298 match = 1;
2299 }
2300
2301 if (match &&
2302 cs4231_ebus_attach(edev) == 0)
2303 found++;
2304 }
2305 }
2306 #endif
2307
2308
2309 return (found > 0) ? 0 : -EIO;
2310 }
2311
2312 static void __exit cs4231_exit(void)
2313 {
2314 struct snd_cs4231 *p = cs4231_list;
2315
2316 while (p != NULL) {
2317 struct snd_cs4231 *next = p->next;
2318
2319 snd_card_free(p->card);
2320
2321 p = next;
2322 }
2323
2324 cs4231_list = NULL;
2325 }
2326
2327 module_init(cs4231_init);
2328 module_exit(cs4231_exit);
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