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PCI: rpaphp: Use pcibios_remove_pci_devices() symmetrically
[linux-2.6/mini2440.git] / sound / sparc / cs4231.c
blob900a00de35fd7b016f0e10b7bbfa9dd2db2a5ae9
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/module.h>
12 #include <linux/kernel.h>
13 #include <linux/slab.h>
14 #include <linux/delay.h>
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/moduleparam.h>
18
19 #include <sound/driver.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/info.h>
23 #include <sound/control.h>
24 #include <sound/timer.h>
25 #include <sound/initval.h>
26 #include <sound/pcm_params.h>
27
28 #include <asm/io.h>
29 #include <asm/irq.h>
30
31 #ifdef CONFIG_SBUS
32 #define SBUS_SUPPORT
33 #endif
34
35 #ifdef SBUS_SUPPORT
36 #include <asm/sbus.h>
37 #endif
38
39 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
40 #define EBUS_SUPPORT
41 #endif
42
43 #ifdef EBUS_SUPPORT
44 #include <linux/pci.h>
45 #include <asm/ebus.h>
46 #endif
47
48 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
49 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
50 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
51
52 module_param_array(index, int, NULL, 0444);
53 MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
54 module_param_array(id, charp, NULL, 0444);
55 MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
56 module_param_array(enable, bool, NULL, 0444);
57 MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
58 MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller");
59 MODULE_DESCRIPTION("Sun CS4231");
60 MODULE_LICENSE("GPL");
61 MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
62
63 #ifdef SBUS_SUPPORT
64 struct sbus_dma_info {
65 spinlock_t lock;
66 int dir;
67 void __iomem *regs;
68 };
69 #endif
70
71 struct snd_cs4231;
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_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 mutex mce_mutex;
118 struct mutex 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 BUG_ON(period_size >= (1 << 24));
614
615 if (dma_cont->request(dma_cont, runtime->dma_addr + offset, period_size))
616 return;
617 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
618 }
619 }
620
621 static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
622 unsigned int what, int on)
623 {
624 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
625 struct cs4231_dma_control *dma_cont;
626
627 if (what & CS4231_PLAYBACK_ENABLE) {
628 dma_cont = &chip->p_dma;
629 if (on) {
630 dma_cont->prepare(dma_cont, 0);
631 dma_cont->enable(dma_cont, 1);
632 snd_cs4231_advance_dma(dma_cont,
633 chip->playback_substream,
634 &chip->p_periods_sent);
635 } else {
636 dma_cont->enable(dma_cont, 0);
637 }
638 }
639 if (what & CS4231_RECORD_ENABLE) {
640 dma_cont = &chip->c_dma;
641 if (on) {
642 dma_cont->prepare(dma_cont, 1);
643 dma_cont->enable(dma_cont, 1);
644 snd_cs4231_advance_dma(dma_cont,
645 chip->capture_substream,
646 &chip->c_periods_sent);
647 } else {
648 dma_cont->enable(dma_cont, 0);
649 }
650 }
651 }
652
653 static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
654 {
655 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
656 int result = 0;
657
658 switch (cmd) {
659 case SNDRV_PCM_TRIGGER_START:
660 case SNDRV_PCM_TRIGGER_STOP:
661 {
662 unsigned int what = 0;
663 struct snd_pcm_substream *s;
664 struct list_head *pos;
665 unsigned long flags;
666
667 snd_pcm_group_for_each(pos, substream) {
668 s = snd_pcm_group_substream_entry(pos);
669 if (s == chip->playback_substream) {
670 what |= CS4231_PLAYBACK_ENABLE;
671 snd_pcm_trigger_done(s, substream);
672 } else if (s == chip->capture_substream) {
673 what |= CS4231_RECORD_ENABLE;
674 snd_pcm_trigger_done(s, substream);
675 }
676 }
677
678 spin_lock_irqsave(&chip->lock, flags);
679 if (cmd == SNDRV_PCM_TRIGGER_START) {
680 cs4231_dma_trigger(substream, what, 1);
681 chip->image[CS4231_IFACE_CTRL] |= what;
682 } else {
683 cs4231_dma_trigger(substream, what, 0);
684 chip->image[CS4231_IFACE_CTRL] &= ~what;
685 }
686 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
687 chip->image[CS4231_IFACE_CTRL]);
688 spin_unlock_irqrestore(&chip->lock, flags);
689 break;
690 }
691 default:
692 result = -EINVAL;
693 break;
694 }
695
696 return result;
697 }
698
699 /*
700 * CODEC I/O
701 */
702
703 static unsigned char snd_cs4231_get_rate(unsigned int rate)
704 {
705 int i;
706
707 for (i = 0; i < 14; i++)
708 if (rate == rates[i])
709 return freq_bits[i];
710 // snd_BUG();
711 return freq_bits[13];
712 }
713
714 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, int channels)
715 {
716 unsigned char rformat;
717
718 rformat = CS4231_LINEAR_8;
719 switch (format) {
720 case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break;
721 case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break;
722 case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break;
723 case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break;
724 case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break;
725 }
726 if (channels > 1)
727 rformat |= CS4231_STEREO;
728 return rformat;
729 }
730
731 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
732 {
733 unsigned long flags;
734
735 mute = mute ? 1 : 0;
736 spin_lock_irqsave(&chip->lock, flags);
737 if (chip->calibrate_mute == mute) {
738 spin_unlock_irqrestore(&chip->lock, flags);
739 return;
740 }
741 if (!mute) {
742 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
743 chip->image[CS4231_LEFT_INPUT]);
744 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
745 chip->image[CS4231_RIGHT_INPUT]);
746 snd_cs4231_dout(chip, CS4231_LOOPBACK,
747 chip->image[CS4231_LOOPBACK]);
748 }
749 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
750 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
751 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
752 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
753 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
754 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
755 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
756 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
757 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
758 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
759 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
760 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
761 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
762 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
763 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
764 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
765 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
766 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
767 chip->calibrate_mute = mute;
768 spin_unlock_irqrestore(&chip->lock, flags);
769 }
770
771 static void snd_cs4231_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
772 unsigned char pdfr)
773 {
774 unsigned long flags;
775
776 mutex_lock(&chip->mce_mutex);
777 snd_cs4231_calibrate_mute(chip, 1);
778
779 snd_cs4231_mce_up(chip);
780
781 spin_lock_irqsave(&chip->lock, flags);
782 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
783 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
784 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
785 pdfr);
786 spin_unlock_irqrestore(&chip->lock, flags);
787
788 snd_cs4231_mce_down(chip);
789
790 snd_cs4231_calibrate_mute(chip, 0);
791 mutex_unlock(&chip->mce_mutex);
792 }
793
794 static void snd_cs4231_capture_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
795 unsigned char cdfr)
796 {
797 unsigned long flags;
798
799 mutex_lock(&chip->mce_mutex);
800 snd_cs4231_calibrate_mute(chip, 1);
801
802 snd_cs4231_mce_up(chip);
803
804 spin_lock_irqsave(&chip->lock, flags);
805 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
806 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
807 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
808 (cdfr & 0x0f));
809 spin_unlock_irqrestore(&chip->lock, flags);
810 snd_cs4231_mce_down(chip);
811 snd_cs4231_mce_up(chip);
812 spin_lock_irqsave(&chip->lock, flags);
813 }
814 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
815 spin_unlock_irqrestore(&chip->lock, flags);
816
817 snd_cs4231_mce_down(chip);
818
819 snd_cs4231_calibrate_mute(chip, 0);
820 mutex_unlock(&chip->mce_mutex);
821 }
822
823 /*
824 * Timer interface
825 */
826
827 static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
828 {
829 struct snd_cs4231 *chip = snd_timer_chip(timer);
830
831 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
832 }
833
834 static int snd_cs4231_timer_start(struct snd_timer *timer)
835 {
836 unsigned long flags;
837 unsigned int ticks;
838 struct snd_cs4231 *chip = snd_timer_chip(timer);
839
840 spin_lock_irqsave(&chip->lock, flags);
841 ticks = timer->sticks;
842 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
843 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
844 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
845 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
846 chip->image[CS4231_TIMER_HIGH] =
847 (unsigned char) (ticks >> 8));
848 snd_cs4231_out(chip, CS4231_TIMER_LOW,
849 chip->image[CS4231_TIMER_LOW] =
850 (unsigned char) ticks);
851 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
852 chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
853 }
854 spin_unlock_irqrestore(&chip->lock, flags);
855
856 return 0;
857 }
858
859 static int snd_cs4231_timer_stop(struct snd_timer *timer)
860 {
861 unsigned long flags;
862 struct snd_cs4231 *chip = snd_timer_chip(timer);
863
864 spin_lock_irqsave(&chip->lock, flags);
865 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
866 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
867 spin_unlock_irqrestore(&chip->lock, flags);
868
869 return 0;
870 }
871
872 static void __init snd_cs4231_init(struct snd_cs4231 *chip)
873 {
874 unsigned long flags;
875
876 snd_cs4231_mce_down(chip);
877
878 #ifdef SNDRV_DEBUG_MCE
879 snd_printdd("init: (1)\n");
880 #endif
881 snd_cs4231_mce_up(chip);
882 spin_lock_irqsave(&chip->lock, flags);
883 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
884 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
885 CS4231_CALIB_MODE);
886 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
887 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
888 spin_unlock_irqrestore(&chip->lock, flags);
889 snd_cs4231_mce_down(chip);
890
891 #ifdef SNDRV_DEBUG_MCE
892 snd_printdd("init: (2)\n");
893 #endif
894
895 snd_cs4231_mce_up(chip);
896 spin_lock_irqsave(&chip->lock, flags);
897 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
898 spin_unlock_irqrestore(&chip->lock, flags);
899 snd_cs4231_mce_down(chip);
900
901 #ifdef SNDRV_DEBUG_MCE
902 snd_printdd("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
903 #endif
904
905 spin_lock_irqsave(&chip->lock, flags);
906 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
907 spin_unlock_irqrestore(&chip->lock, flags);
908
909 snd_cs4231_mce_up(chip);
910 spin_lock_irqsave(&chip->lock, flags);
911 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
912 spin_unlock_irqrestore(&chip->lock, flags);
913 snd_cs4231_mce_down(chip);
914
915 #ifdef SNDRV_DEBUG_MCE
916 snd_printdd("init: (4)\n");
917 #endif
918
919 snd_cs4231_mce_up(chip);
920 spin_lock_irqsave(&chip->lock, flags);
921 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
922 spin_unlock_irqrestore(&chip->lock, flags);
923 snd_cs4231_mce_down(chip);
924
925 #ifdef SNDRV_DEBUG_MCE
926 snd_printdd("init: (5)\n");
927 #endif
928 }
929
930 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
931 {
932 unsigned long flags;
933
934 mutex_lock(&chip->open_mutex);
935 if ((chip->mode & mode)) {
936 mutex_unlock(&chip->open_mutex);
937 return -EAGAIN;
938 }
939 if (chip->mode & CS4231_MODE_OPEN) {
940 chip->mode |= mode;
941 mutex_unlock(&chip->open_mutex);
942 return 0;
943 }
944 /* ok. now enable and ack CODEC IRQ */
945 spin_lock_irqsave(&chip->lock, flags);
946 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
947 CS4231_RECORD_IRQ |
948 CS4231_TIMER_IRQ);
949 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
950 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
951 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
952
953 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
954 CS4231_RECORD_IRQ |
955 CS4231_TIMER_IRQ);
956 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
957
958 spin_unlock_irqrestore(&chip->lock, flags);
959
960 chip->mode = mode;
961 mutex_unlock(&chip->open_mutex);
962 return 0;
963 }
964
965 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
966 {
967 unsigned long flags;
968
969 mutex_lock(&chip->open_mutex);
970 chip->mode &= ~mode;
971 if (chip->mode & CS4231_MODE_OPEN) {
972 mutex_unlock(&chip->open_mutex);
973 return;
974 }
975 snd_cs4231_calibrate_mute(chip, 1);
976
977 /* disable IRQ */
978 spin_lock_irqsave(&chip->lock, flags);
979 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
980 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
981 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
982
983 /* now disable record & playback */
984
985 if (chip->image[CS4231_IFACE_CTRL] &
986 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
987 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
988 spin_unlock_irqrestore(&chip->lock, flags);
989 snd_cs4231_mce_up(chip);
990 spin_lock_irqsave(&chip->lock, flags);
991 chip->image[CS4231_IFACE_CTRL] &=
992 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
993 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
994 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
995 spin_unlock_irqrestore(&chip->lock, flags);
996 snd_cs4231_mce_down(chip);
997 spin_lock_irqsave(&chip->lock, flags);
998 }
999
1000 /* clear IRQ again */
1001 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
1002 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1003 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); /* clear IRQ */
1004 spin_unlock_irqrestore(&chip->lock, flags);
1005
1006 snd_cs4231_calibrate_mute(chip, 0);
1007
1008 chip->mode = 0;
1009 mutex_unlock(&chip->open_mutex);
1010 }
1011
1012 /*
1013 * timer open/close
1014 */
1015
1016 static int snd_cs4231_timer_open(struct snd_timer *timer)
1017 {
1018 struct snd_cs4231 *chip = snd_timer_chip(timer);
1019 snd_cs4231_open(chip, CS4231_MODE_TIMER);
1020 return 0;
1021 }
1022
1023 static int snd_cs4231_timer_close(struct snd_timer * timer)
1024 {
1025 struct snd_cs4231 *chip = snd_timer_chip(timer);
1026 snd_cs4231_close(chip, CS4231_MODE_TIMER);
1027 return 0;
1028 }
1029
1030 static struct snd_timer_hardware snd_cs4231_timer_table =
1031 {
1032 .flags = SNDRV_TIMER_HW_AUTO,
1033 .resolution = 9945,
1034 .ticks = 65535,
1035 .open = snd_cs4231_timer_open,
1036 .close = snd_cs4231_timer_close,
1037 .c_resolution = snd_cs4231_timer_resolution,
1038 .start = snd_cs4231_timer_start,
1039 .stop = snd_cs4231_timer_stop,
1040 };
1041
1042 /*
1043 * ok.. exported functions..
1044 */
1045
1046 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
1047 struct snd_pcm_hw_params *hw_params)
1048 {
1049 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1050 unsigned char new_pdfr;
1051 int err;
1052
1053 if ((err = snd_pcm_lib_malloc_pages(substream,
1054 params_buffer_bytes(hw_params))) < 0)
1055 return err;
1056 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1057 params_channels(hw_params)) |
1058 snd_cs4231_get_rate(params_rate(hw_params));
1059 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
1060
1061 return 0;
1062 }
1063
1064 static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
1065 {
1066 return snd_pcm_lib_free_pages(substream);
1067 }
1068
1069 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
1070 {
1071 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1072 struct snd_pcm_runtime *runtime = substream->runtime;
1073 unsigned long flags;
1074
1075 spin_lock_irqsave(&chip->lock, flags);
1076
1077 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
1078 CS4231_PLAYBACK_PIO);
1079
1080 BUG_ON(runtime->period_size > 0xffff + 1);
1081
1082 chip->p_periods_sent = 0;
1083 spin_unlock_irqrestore(&chip->lock, flags);
1084
1085 return 0;
1086 }
1087
1088 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
1089 struct snd_pcm_hw_params *hw_params)
1090 {
1091 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1092 unsigned char new_cdfr;
1093 int err;
1094
1095 if ((err = snd_pcm_lib_malloc_pages(substream,
1096 params_buffer_bytes(hw_params))) < 0)
1097 return err;
1098 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
1099 params_channels(hw_params)) |
1100 snd_cs4231_get_rate(params_rate(hw_params));
1101 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
1102
1103 return 0;
1104 }
1105
1106 static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
1107 {
1108 return snd_pcm_lib_free_pages(substream);
1109 }
1110
1111 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
1112 {
1113 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1114 unsigned long flags;
1115
1116 spin_lock_irqsave(&chip->lock, flags);
1117 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
1118 CS4231_RECORD_PIO);
1119
1120
1121 chip->c_periods_sent = 0;
1122 spin_unlock_irqrestore(&chip->lock, flags);
1123
1124 return 0;
1125 }
1126
1127 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
1128 {
1129 unsigned long flags;
1130 unsigned char res;
1131
1132 spin_lock_irqsave(&chip->lock, flags);
1133 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
1134 spin_unlock_irqrestore(&chip->lock, flags);
1135
1136 if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */
1137 chip->capture_substream->runtime->overrange++;
1138 }
1139
1140 static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
1141 {
1142 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
1143 snd_pcm_period_elapsed(chip->playback_substream);
1144 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
1145 &chip->p_periods_sent);
1146 }
1147 }
1148
1149 static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
1150 {
1151 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
1152 snd_pcm_period_elapsed(chip->capture_substream);
1153 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
1154 &chip->c_periods_sent);
1155 }
1156 }
1157
1158 static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
1159 {
1160 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1161 struct cs4231_dma_control *dma_cont = &chip->p_dma;
1162 size_t ptr;
1163
1164 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1165 return 0;
1166 ptr = dma_cont->address(dma_cont);
1167 if (ptr != 0)
1168 ptr -= substream->runtime->dma_addr;
1169
1170 return bytes_to_frames(substream->runtime, ptr);
1171 }
1172
1173 static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
1174 {
1175 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1176 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1177 size_t ptr;
1178
1179 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1180 return 0;
1181 ptr = dma_cont->address(dma_cont);
1182 if (ptr != 0)
1183 ptr -= substream->runtime->dma_addr;
1184
1185 return bytes_to_frames(substream->runtime, ptr);
1186 }
1187
1188 /*
1189
1190 */
1191
1192 static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
1193 {
1194 unsigned long flags;
1195 int i, id, vers;
1196 unsigned char *ptr;
1197
1198 id = vers = 0;
1199 for (i = 0; i < 50; i++) {
1200 mb();
1201 if (__cs4231_readb(chip, CS4231P(chip, REGSEL)) & CS4231_INIT)
1202 udelay(2000);
1203 else {
1204 spin_lock_irqsave(&chip->lock, flags);
1205 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1206 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1207 vers = snd_cs4231_in(chip, CS4231_VERSION);
1208 spin_unlock_irqrestore(&chip->lock, flags);
1209 if (id == 0x0a)
1210 break; /* this is valid value */
1211 }
1212 }
1213 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1214 if (id != 0x0a)
1215 return -ENODEV; /* no valid device found */
1216
1217 spin_lock_irqsave(&chip->lock, flags);
1218
1219
1220 /* Reset DMA engine (sbus only). */
1221 chip->p_dma.reset(chip);
1222
1223 __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */
1224 __cs4231_writeb(chip, 0, CS4231P(chip, STATUS));
1225 mb();
1226
1227 spin_unlock_irqrestore(&chip->lock, flags);
1228
1229 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1230 chip->image[CS4231_IFACE_CTRL] =
1231 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1232 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1233 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1234 if (vers & 0x20)
1235 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1236
1237 ptr = (unsigned char *) &chip->image;
1238
1239 snd_cs4231_mce_down(chip);
1240
1241 spin_lock_irqsave(&chip->lock, flags);
1242
1243 for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */
1244 snd_cs4231_out(chip, i, *ptr++);
1245
1246 spin_unlock_irqrestore(&chip->lock, flags);
1247
1248 snd_cs4231_mce_up(chip);
1249
1250 snd_cs4231_mce_down(chip);
1251
1252 mdelay(2);
1253
1254 return 0; /* all things are ok.. */
1255 }
1256
1257 static struct snd_pcm_hardware snd_cs4231_playback =
1258 {
1259 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1260 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1261 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1262 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1263 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1264 SNDRV_PCM_FMTBIT_S16_BE),
1265 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1266 .rate_min = 5510,
1267 .rate_max = 48000,
1268 .channels_min = 1,
1269 .channels_max = 2,
1270 .buffer_bytes_max = (32*1024),
1271 .period_bytes_min = 64,
1272 .period_bytes_max = (32*1024),
1273 .periods_min = 1,
1274 .periods_max = 1024,
1275 };
1276
1277 static struct snd_pcm_hardware snd_cs4231_capture =
1278 {
1279 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1280 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1281 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
1282 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1283 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1284 SNDRV_PCM_FMTBIT_S16_BE),
1285 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1286 .rate_min = 5510,
1287 .rate_max = 48000,
1288 .channels_min = 1,
1289 .channels_max = 2,
1290 .buffer_bytes_max = (32*1024),
1291 .period_bytes_min = 64,
1292 .period_bytes_max = (32*1024),
1293 .periods_min = 1,
1294 .periods_max = 1024,
1295 };
1296
1297 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1298 {
1299 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1300 struct snd_pcm_runtime *runtime = substream->runtime;
1301 int err;
1302
1303 runtime->hw = snd_cs4231_playback;
1304
1305 if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
1306 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1307 return err;
1308 }
1309 chip->playback_substream = substream;
1310 chip->p_periods_sent = 0;
1311 snd_pcm_set_sync(substream);
1312 snd_cs4231_xrate(runtime);
1313
1314 return 0;
1315 }
1316
1317 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1318 {
1319 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1320 struct snd_pcm_runtime *runtime = substream->runtime;
1321 int err;
1322
1323 runtime->hw = snd_cs4231_capture;
1324
1325 if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
1326 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1327 return err;
1328 }
1329 chip->capture_substream = substream;
1330 chip->c_periods_sent = 0;
1331 snd_pcm_set_sync(substream);
1332 snd_cs4231_xrate(runtime);
1333
1334 return 0;
1335 }
1336
1337 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1338 {
1339 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1340
1341 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1342 chip->playback_substream = NULL;
1343
1344 return 0;
1345 }
1346
1347 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1348 {
1349 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1350
1351 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1352 chip->capture_substream = NULL;
1353
1354 return 0;
1355 }
1356
1357 /* XXX We can do some power-management, in particular on EBUS using
1358 * XXX the audio AUXIO register...
1359 */
1360
1361 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1362 .open = snd_cs4231_playback_open,
1363 .close = snd_cs4231_playback_close,
1364 .ioctl = snd_pcm_lib_ioctl,
1365 .hw_params = snd_cs4231_playback_hw_params,
1366 .hw_free = snd_cs4231_playback_hw_free,
1367 .prepare = snd_cs4231_playback_prepare,
1368 .trigger = snd_cs4231_trigger,
1369 .pointer = snd_cs4231_playback_pointer,
1370 };
1371
1372 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1373 .open = snd_cs4231_capture_open,
1374 .close = snd_cs4231_capture_close,
1375 .ioctl = snd_pcm_lib_ioctl,
1376 .hw_params = snd_cs4231_capture_hw_params,
1377 .hw_free = snd_cs4231_capture_hw_free,
1378 .prepare = snd_cs4231_capture_prepare,
1379 .trigger = snd_cs4231_trigger,
1380 .pointer = snd_cs4231_capture_pointer,
1381 };
1382
1383 static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
1384 {
1385 struct snd_pcm *pcm;
1386 int err;
1387
1388 if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0)
1389 return err;
1390
1391 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
1392 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
1393
1394 /* global setup */
1395 pcm->private_data = chip;
1396 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1397 strcpy(pcm->name, "CS4231");
1398
1399 chip->p_dma.preallocate(chip, pcm);
1400
1401 chip->pcm = pcm;
1402
1403 return 0;
1404 }
1405
1406 static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
1407 {
1408 struct snd_timer *timer;
1409 struct snd_timer_id tid;
1410 int err;
1411
1412 /* Timer initialization */
1413 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1414 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1415 tid.card = chip->card->number;
1416 tid.device = 0;
1417 tid.subdevice = 0;
1418 if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
1419 return err;
1420 strcpy(timer->name, "CS4231");
1421 timer->private_data = chip;
1422 timer->hw = snd_cs4231_timer_table;
1423 chip->timer = timer;
1424
1425 return 0;
1426 }
1427
1428 /*
1429 * MIXER part
1430 */
1431
1432 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1433 struct snd_ctl_elem_info *uinfo)
1434 {
1435 static char *texts[4] = {
1436 "Line", "CD", "Mic", "Mix"
1437 };
1438 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1439
1440 snd_assert(chip->card != NULL, return -EINVAL);
1441 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1442 uinfo->count = 2;
1443 uinfo->value.enumerated.items = 4;
1444 if (uinfo->value.enumerated.item > 3)
1445 uinfo->value.enumerated.item = 3;
1446 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1447
1448 return 0;
1449 }
1450
1451 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1452 struct snd_ctl_elem_value *ucontrol)
1453 {
1454 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1455 unsigned long flags;
1456
1457 spin_lock_irqsave(&chip->lock, flags);
1458 ucontrol->value.enumerated.item[0] =
1459 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1460 ucontrol->value.enumerated.item[1] =
1461 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1462 spin_unlock_irqrestore(&chip->lock, flags);
1463
1464 return 0;
1465 }
1466
1467 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1468 struct snd_ctl_elem_value *ucontrol)
1469 {
1470 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1471 unsigned long flags;
1472 unsigned short left, right;
1473 int change;
1474
1475 if (ucontrol->value.enumerated.item[0] > 3 ||
1476 ucontrol->value.enumerated.item[1] > 3)
1477 return -EINVAL;
1478 left = ucontrol->value.enumerated.item[0] << 6;
1479 right = ucontrol->value.enumerated.item[1] << 6;
1480
1481 spin_lock_irqsave(&chip->lock, flags);
1482
1483 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1484 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1485 change = left != chip->image[CS4231_LEFT_INPUT] ||
1486 right != chip->image[CS4231_RIGHT_INPUT];
1487 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1488 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1489
1490 spin_unlock_irqrestore(&chip->lock, flags);
1491
1492 return change;
1493 }
1494
1495 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1496 struct snd_ctl_elem_info *uinfo)
1497 {
1498 int mask = (kcontrol->private_value >> 16) & 0xff;
1499
1500 uinfo->type = (mask == 1) ?
1501 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1502 uinfo->count = 1;
1503 uinfo->value.integer.min = 0;
1504 uinfo->value.integer.max = mask;
1505
1506 return 0;
1507 }
1508
1509 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1510 struct snd_ctl_elem_value *ucontrol)
1511 {
1512 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1513 unsigned long flags;
1514 int reg = kcontrol->private_value & 0xff;
1515 int shift = (kcontrol->private_value >> 8) & 0xff;
1516 int mask = (kcontrol->private_value >> 16) & 0xff;
1517 int invert = (kcontrol->private_value >> 24) & 0xff;
1518
1519 spin_lock_irqsave(&chip->lock, flags);
1520
1521 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1522
1523 spin_unlock_irqrestore(&chip->lock, flags);
1524
1525 if (invert)
1526 ucontrol->value.integer.value[0] =
1527 (mask - ucontrol->value.integer.value[0]);
1528
1529 return 0;
1530 }
1531
1532 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1533 struct snd_ctl_elem_value *ucontrol)
1534 {
1535 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1536 unsigned long flags;
1537 int reg = kcontrol->private_value & 0xff;
1538 int shift = (kcontrol->private_value >> 8) & 0xff;
1539 int mask = (kcontrol->private_value >> 16) & 0xff;
1540 int invert = (kcontrol->private_value >> 24) & 0xff;
1541 int change;
1542 unsigned short val;
1543
1544 val = (ucontrol->value.integer.value[0] & mask);
1545 if (invert)
1546 val = mask - val;
1547 val <<= shift;
1548
1549 spin_lock_irqsave(&chip->lock, flags);
1550
1551 val = (chip->image[reg] & ~(mask << shift)) | val;
1552 change = val != chip->image[reg];
1553 snd_cs4231_out(chip, reg, val);
1554
1555 spin_unlock_irqrestore(&chip->lock, flags);
1556
1557 return change;
1558 }
1559
1560 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1561 struct snd_ctl_elem_info *uinfo)
1562 {
1563 int mask = (kcontrol->private_value >> 24) & 0xff;
1564
1565 uinfo->type = mask == 1 ?
1566 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1567 uinfo->count = 2;
1568 uinfo->value.integer.min = 0;
1569 uinfo->value.integer.max = mask;
1570
1571 return 0;
1572 }
1573
1574 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1575 struct snd_ctl_elem_value *ucontrol)
1576 {
1577 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1578 unsigned long flags;
1579 int left_reg = kcontrol->private_value & 0xff;
1580 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1581 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1582 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1583 int mask = (kcontrol->private_value >> 24) & 0xff;
1584 int invert = (kcontrol->private_value >> 22) & 1;
1585
1586 spin_lock_irqsave(&chip->lock, flags);
1587
1588 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1589 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1590
1591 spin_unlock_irqrestore(&chip->lock, flags);
1592
1593 if (invert) {
1594 ucontrol->value.integer.value[0] =
1595 (mask - ucontrol->value.integer.value[0]);
1596 ucontrol->value.integer.value[1] =
1597 (mask - ucontrol->value.integer.value[1]);
1598 }
1599
1600 return 0;
1601 }
1602
1603 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1604 struct snd_ctl_elem_value *ucontrol)
1605 {
1606 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1607 unsigned long flags;
1608 int left_reg = kcontrol->private_value & 0xff;
1609 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1610 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1611 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1612 int mask = (kcontrol->private_value >> 24) & 0xff;
1613 int invert = (kcontrol->private_value >> 22) & 1;
1614 int change;
1615 unsigned short val1, val2;
1616
1617 val1 = ucontrol->value.integer.value[0] & mask;
1618 val2 = ucontrol->value.integer.value[1] & mask;
1619 if (invert) {
1620 val1 = mask - val1;
1621 val2 = mask - val2;
1622 }
1623 val1 <<= shift_left;
1624 val2 <<= shift_right;
1625
1626 spin_lock_irqsave(&chip->lock, flags);
1627
1628 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1629 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1630 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1631 snd_cs4231_out(chip, left_reg, val1);
1632 snd_cs4231_out(chip, right_reg, val2);
1633
1634 spin_unlock_irqrestore(&chip->lock, flags);
1635
1636 return change;
1637 }
1638
1639 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1640 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1641 .info = snd_cs4231_info_single, \
1642 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1643 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1644
1645 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1646 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1647 .info = snd_cs4231_info_double, \
1648 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1649 .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1650
1651 static struct snd_kcontrol_new snd_cs4231_controls[] __initdata = {
1652 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1653 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1654 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1655 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1656 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1657 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1658 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1659 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1660 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1661 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1662 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1663 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1664 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
1665 {
1666 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1667 .name = "Capture Source",
1668 .info = snd_cs4231_info_mux,
1669 .get = snd_cs4231_get_mux,
1670 .put = snd_cs4231_put_mux,
1671 },
1672 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
1673 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1674 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1675 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */
1676 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1677 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1678 };
1679
1680 static int __init snd_cs4231_mixer(struct snd_cs4231 *chip)
1681 {
1682 struct snd_card *card;
1683 int err, idx;
1684
1685 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1686
1687 card = chip->card;
1688
1689 strcpy(card->mixername, chip->pcm->name);
1690
1691 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1692 if ((err = snd_ctl_add(card,
1693 snd_ctl_new1(&snd_cs4231_controls[idx],
1694 chip))) < 0)
1695 return err;
1696 }
1697 return 0;
1698 }
1699
1700 static int dev;
1701
1702 static int __init cs4231_attach_begin(struct snd_card **rcard)
1703 {
1704 struct snd_card *card;
1705
1706 *rcard = NULL;
1707
1708 if (dev >= SNDRV_CARDS)
1709 return -ENODEV;
1710
1711 if (!enable[dev]) {
1712 dev++;
1713 return -ENOENT;
1714 }
1715
1716 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1717 if (card == NULL)
1718 return -ENOMEM;
1719
1720 strcpy(card->driver, "CS4231");
1721 strcpy(card->shortname, "Sun CS4231");
1722
1723 *rcard = card;
1724 return 0;
1725 }
1726
1727 static int __init cs4231_attach_finish(struct snd_card *card, struct snd_cs4231 *chip)
1728 {
1729 int err;
1730
1731 if ((err = snd_cs4231_pcm(chip)) < 0)
1732 goto out_err;
1733
1734 if ((err = snd_cs4231_mixer(chip)) < 0)
1735 goto out_err;
1736
1737 if ((err = snd_cs4231_timer(chip)) < 0)
1738 goto out_err;
1739
1740 if ((err = snd_card_register(card)) < 0)
1741 goto out_err;
1742
1743 chip->next = cs4231_list;
1744 cs4231_list = chip;
1745
1746 dev++;
1747 return 0;
1748
1749 out_err:
1750 snd_card_free(card);
1751 return err;
1752 }
1753
1754 #ifdef SBUS_SUPPORT
1755
1756 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id)
1757 {
1758 unsigned long flags;
1759 unsigned char status;
1760 u32 csr;
1761 struct snd_cs4231 *chip = dev_id;
1762
1763 /*This is IRQ is not raised by the cs4231*/
1764 if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ))
1765 return IRQ_NONE;
1766
1767 /* ACK the APC interrupt. */
1768 csr = sbus_readl(chip->port + APCCSR);
1769
1770 sbus_writel(csr, chip->port + APCCSR);
1771
1772 if ((csr & APC_PDMA_READY) &&
1773 (csr & APC_PLAY_INT) &&
1774 (csr & APC_XINT_PNVA) &&
1775 !(csr & APC_XINT_EMPT))
1776 snd_cs4231_play_callback(chip);
1777
1778 if ((csr & APC_CDMA_READY) &&
1779 (csr & APC_CAPT_INT) &&
1780 (csr & APC_XINT_CNVA) &&
1781 !(csr & APC_XINT_EMPT))
1782 snd_cs4231_capture_callback(chip);
1783
1784 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1785
1786 if (status & CS4231_TIMER_IRQ) {
1787 if (chip->timer)
1788 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1789 }
1790
1791 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1792 snd_cs4231_overrange(chip);
1793
1794 /* ACK the CS4231 interrupt. */
1795 spin_lock_irqsave(&chip->lock, flags);
1796 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1797 spin_unlock_irqrestore(&chip->lock, flags);
1798
1799 return IRQ_HANDLED;
1800 }
1801
1802 /*
1803 * SBUS DMA routines
1804 */
1805
1806 static int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
1807 {
1808 unsigned long flags;
1809 u32 test, csr;
1810 int err;
1811 struct sbus_dma_info *base = &dma_cont->sbus_info;
1812
1813 if (len >= (1 << 24))
1814 return -EINVAL;
1815 spin_lock_irqsave(&base->lock, flags);
1816 csr = sbus_readl(base->regs + APCCSR);
1817 err = -EINVAL;
1818 test = APC_CDMA_READY;
1819 if ( base->dir == APC_PLAY )
1820 test = APC_PDMA_READY;
1821 if (!(csr & test))
1822 goto out;
1823 err = -EBUSY;
1824 test = APC_XINT_CNVA;
1825 if ( base->dir == APC_PLAY )
1826 test = APC_XINT_PNVA;
1827 if (!(csr & test))
1828 goto out;
1829 err = 0;
1830 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1831 sbus_writel(len, base->regs + base->dir + APCNC);
1832 out:
1833 spin_unlock_irqrestore(&base->lock, flags);
1834 return err;
1835 }
1836
1837 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1838 {
1839 unsigned long flags;
1840 u32 csr, test;
1841 struct sbus_dma_info *base = &dma_cont->sbus_info;
1842
1843 spin_lock_irqsave(&base->lock, flags);
1844 csr = sbus_readl(base->regs + APCCSR);
1845 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1846 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1847 APC_XINT_PENA;
1848 if ( base->dir == APC_RECORD )
1849 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1850 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1851 csr |= test;
1852 sbus_writel(csr, base->regs + APCCSR);
1853 spin_unlock_irqrestore(&base->lock, flags);
1854 }
1855
1856 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1857 {
1858 unsigned long flags;
1859 u32 csr, shift;
1860 struct sbus_dma_info *base = &dma_cont->sbus_info;
1861
1862 spin_lock_irqsave(&base->lock, flags);
1863 if (!on) {
1864 sbus_writel(0, base->regs + base->dir + APCNC);
1865 sbus_writel(0, base->regs + base->dir + APCNVA);
1866 sbus_writel(0, base->regs + base->dir + APCC);
1867 sbus_writel(0, base->regs + base->dir + APCVA);
1868
1869 /* ACK any APC interrupts. */
1870 csr = sbus_readl(base->regs + APCCSR);
1871 sbus_writel(csr, base->regs + APCCSR);
1872 }
1873 udelay(1000);
1874 csr = sbus_readl(base->regs + APCCSR);
1875 shift = 0;
1876 if ( base->dir == APC_PLAY )
1877 shift = 1;
1878 if (on)
1879 csr &= ~(APC_CPAUSE << shift);
1880 else
1881 csr |= (APC_CPAUSE << shift);
1882 sbus_writel(csr, base->regs + APCCSR);
1883 if (on)
1884 csr |= (APC_CDMA_READY << shift);
1885 else
1886 csr &= ~(APC_CDMA_READY << shift);
1887 sbus_writel(csr, base->regs + APCCSR);
1888
1889 spin_unlock_irqrestore(&base->lock, flags);
1890 }
1891
1892 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1893 {
1894 struct sbus_dma_info *base = &dma_cont->sbus_info;
1895
1896 return sbus_readl(base->regs + base->dir + APCVA);
1897 }
1898
1899 static void sbus_dma_reset(struct snd_cs4231 *chip)
1900 {
1901 sbus_writel(APC_CHIP_RESET, chip->port + APCCSR);
1902 sbus_writel(0x00, chip->port + APCCSR);
1903 sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET,
1904 chip->port + APCCSR);
1905
1906 udelay(20);
1907
1908 sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET,
1909 chip->port + APCCSR);
1910 sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA |
1911 APC_XINT_PENA |
1912 APC_XINT_CENA),
1913 chip->port + APCCSR);
1914 }
1915
1916 static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
1917 {
1918 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
1919 snd_dma_sbus_data(chip->dev_u.sdev),
1920 64*1024, 128*1024);
1921 }
1922
1923 /*
1924 * Init and exit routines
1925 */
1926
1927 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1928 {
1929 if (chip->irq[0])
1930 free_irq(chip->irq[0], chip);
1931
1932 if (chip->port)
1933 sbus_iounmap(chip->port, chip->regs_size);
1934
1935 kfree(chip);
1936
1937 return 0;
1938 }
1939
1940 static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1941 {
1942 struct snd_cs4231 *cp = device->device_data;
1943
1944 return snd_cs4231_sbus_free(cp);
1945 }
1946
1947 static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1948 .dev_free = snd_cs4231_sbus_dev_free,
1949 };
1950
1951 static int __init snd_cs4231_sbus_create(struct snd_card *card,
1952 struct sbus_dev *sdev,
1953 int dev,
1954 struct snd_cs4231 **rchip)
1955 {
1956 struct snd_cs4231 *chip;
1957 int err;
1958
1959 *rchip = NULL;
1960 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1961 if (chip == NULL)
1962 return -ENOMEM;
1963
1964 spin_lock_init(&chip->lock);
1965 spin_lock_init(&chip->c_dma.sbus_info.lock);
1966 spin_lock_init(&chip->p_dma.sbus_info.lock);
1967 mutex_init(&chip->mce_mutex);
1968 mutex_init(&chip->open_mutex);
1969 chip->card = card;
1970 chip->dev_u.sdev = sdev;
1971 chip->regs_size = sdev->reg_addrs[0].reg_size;
1972 memcpy(&chip->image, &snd_cs4231_original_image,
1973 sizeof(snd_cs4231_original_image));
1974
1975 chip->port = sbus_ioremap(&sdev->resource[0], 0,
1976 chip->regs_size, "cs4231");
1977 if (!chip->port) {
1978 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1979 return -EIO;
1980 }
1981
1982 chip->c_dma.sbus_info.regs = chip->port;
1983 chip->p_dma.sbus_info.regs = chip->port;
1984 chip->c_dma.sbus_info.dir = APC_RECORD;
1985 chip->p_dma.sbus_info.dir = APC_PLAY;
1986
1987 chip->p_dma.prepare = sbus_dma_prepare;
1988 chip->p_dma.enable = sbus_dma_enable;
1989 chip->p_dma.request = sbus_dma_request;
1990 chip->p_dma.address = sbus_dma_addr;
1991 chip->p_dma.reset = sbus_dma_reset;
1992 chip->p_dma.preallocate = sbus_dma_preallocate;
1993
1994 chip->c_dma.prepare = sbus_dma_prepare;
1995 chip->c_dma.enable = sbus_dma_enable;
1996 chip->c_dma.request = sbus_dma_request;
1997 chip->c_dma.address = sbus_dma_addr;
1998 chip->c_dma.reset = sbus_dma_reset;
1999 chip->c_dma.preallocate = sbus_dma_preallocate;
2000
2001 if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
2002 IRQF_SHARED, "cs4231", chip)) {
2003 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
2004 dev, sdev->irqs[0]);
2005 snd_cs4231_sbus_free(chip);
2006 return -EBUSY;
2007 }
2008 chip->irq[0] = sdev->irqs[0];
2009
2010 if (snd_cs4231_probe(chip) < 0) {
2011 snd_cs4231_sbus_free(chip);
2012 return -ENODEV;
2013 }
2014 snd_cs4231_init(chip);
2015
2016 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2017 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
2018 snd_cs4231_sbus_free(chip);
2019 return err;
2020 }
2021
2022 *rchip = chip;
2023 return 0;
2024 }
2025
2026 static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
2027 {
2028 struct resource *rp = &sdev->resource[0];
2029 struct snd_cs4231 *cp;
2030 struct snd_card *card;
2031 int err;
2032
2033 err = cs4231_attach_begin(&card);
2034 if (err)
2035 return err;
2036
2037 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
2038 card->shortname,
2039 rp->flags & 0xffL,
2040 (unsigned long long)rp->start,
2041 sdev->irqs[0]);
2042
2043 if ((err = snd_cs4231_sbus_create(card, sdev, dev, &cp)) < 0) {
2044 snd_card_free(card);
2045 return err;
2046 }
2047
2048 return cs4231_attach_finish(card, cp);
2049 }
2050 #endif
2051
2052 #ifdef EBUS_SUPPORT
2053
2054 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie)
2055 {
2056 struct snd_cs4231 *chip = cookie;
2057
2058 snd_cs4231_play_callback(chip);
2059 }
2060
2061 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie)
2062 {
2063 struct snd_cs4231 *chip = cookie;
2064
2065 snd_cs4231_capture_callback(chip);
2066 }
2067
2068 /*
2069 * EBUS DMA wrappers
2070 */
2071
2072 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
2073 {
2074 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
2075 }
2076
2077 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
2078 {
2079 ebus_dma_enable(&dma_cont->ebus_info, on);
2080 }
2081
2082 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
2083 {
2084 ebus_dma_prepare(&dma_cont->ebus_info, dir);
2085 }
2086
2087 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
2088 {
2089 return ebus_dma_addr(&dma_cont->ebus_info);
2090 }
2091
2092 static void _ebus_dma_reset(struct snd_cs4231 *chip)
2093 {
2094 return;
2095 }
2096
2097 static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
2098 {
2099 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
2100 snd_dma_pci_data(chip->dev_u.pdev),
2101 64*1024, 128*1024);
2102 }
2103
2104 /*
2105 * Init and exit routines
2106 */
2107
2108 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
2109 {
2110 if (chip->c_dma.ebus_info.regs) {
2111 ebus_dma_unregister(&chip->c_dma.ebus_info);
2112 iounmap(chip->c_dma.ebus_info.regs);
2113 }
2114 if (chip->p_dma.ebus_info.regs) {
2115 ebus_dma_unregister(&chip->p_dma.ebus_info);
2116 iounmap(chip->p_dma.ebus_info.regs);
2117 }
2118
2119 if (chip->port)
2120 iounmap(chip->port);
2121
2122 kfree(chip);
2123
2124 return 0;
2125 }
2126
2127 static int snd_cs4231_ebus_dev_free(struct snd_device *device)
2128 {
2129 struct snd_cs4231 *cp = device->device_data;
2130
2131 return snd_cs4231_ebus_free(cp);
2132 }
2133
2134 static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
2135 .dev_free = snd_cs4231_ebus_dev_free,
2136 };
2137
2138 static int __init snd_cs4231_ebus_create(struct snd_card *card,
2139 struct linux_ebus_device *edev,
2140 int dev,
2141 struct snd_cs4231 **rchip)
2142 {
2143 struct snd_cs4231 *chip;
2144 int err;
2145
2146 *rchip = NULL;
2147 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2148 if (chip == NULL)
2149 return -ENOMEM;
2150
2151 spin_lock_init(&chip->lock);
2152 spin_lock_init(&chip->c_dma.ebus_info.lock);
2153 spin_lock_init(&chip->p_dma.ebus_info.lock);
2154 mutex_init(&chip->mce_mutex);
2155 mutex_init(&chip->open_mutex);
2156 chip->flags |= CS4231_FLAG_EBUS;
2157 chip->card = card;
2158 chip->dev_u.pdev = edev->bus->self;
2159 memcpy(&chip->image, &snd_cs4231_original_image,
2160 sizeof(snd_cs4231_original_image));
2161 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
2162 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2163 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
2164 chip->c_dma.ebus_info.client_cookie = chip;
2165 chip->c_dma.ebus_info.irq = edev->irqs[0];
2166 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
2167 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2168 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
2169 chip->p_dma.ebus_info.client_cookie = chip;
2170 chip->p_dma.ebus_info.irq = edev->irqs[1];
2171
2172 chip->p_dma.prepare = _ebus_dma_prepare;
2173 chip->p_dma.enable = _ebus_dma_enable;
2174 chip->p_dma.request = _ebus_dma_request;
2175 chip->p_dma.address = _ebus_dma_addr;
2176 chip->p_dma.reset = _ebus_dma_reset;
2177 chip->p_dma.preallocate = _ebus_dma_preallocate;
2178
2179 chip->c_dma.prepare = _ebus_dma_prepare;
2180 chip->c_dma.enable = _ebus_dma_enable;
2181 chip->c_dma.request = _ebus_dma_request;
2182 chip->c_dma.address = _ebus_dma_addr;
2183 chip->c_dma.reset = _ebus_dma_reset;
2184 chip->c_dma.preallocate = _ebus_dma_preallocate;
2185
2186 chip->port = ioremap(edev->resource[0].start, 0x10);
2187 chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10);
2188 chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10);
2189 if (!chip->port || !chip->p_dma.ebus_info.regs || !chip->c_dma.ebus_info.regs) {
2190 snd_cs4231_ebus_free(chip);
2191 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2192 return -EIO;
2193 }
2194
2195 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2196 snd_cs4231_ebus_free(chip);
2197 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", dev);
2198 return -EBUSY;
2199 }
2200 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2201 snd_cs4231_ebus_free(chip);
2202 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", dev);
2203 return -EBUSY;
2204 }
2205
2206 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2207 snd_cs4231_ebus_free(chip);
2208 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", dev);
2209 return -EBUSY;
2210 }
2211 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2212 snd_cs4231_ebus_free(chip);
2213 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2214 return -EBUSY;
2215 }
2216
2217 if (snd_cs4231_probe(chip) < 0) {
2218 snd_cs4231_ebus_free(chip);
2219 return -ENODEV;
2220 }
2221 snd_cs4231_init(chip);
2222
2223 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2224 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2225 snd_cs4231_ebus_free(chip);
2226 return err;
2227 }
2228
2229 *rchip = chip;
2230 return 0;
2231 }
2232
2233 static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
2234 {
2235 struct snd_card *card;
2236 struct snd_cs4231 *chip;
2237 int err;
2238
2239 err = cs4231_attach_begin(&card);
2240 if (err)
2241 return err;
2242
2243 sprintf(card->longname, "%s at 0x%lx, irq %d",
2244 card->shortname,
2245 edev->resource[0].start,
2246 edev->irqs[0]);
2247
2248 if ((err = snd_cs4231_ebus_create(card, edev, dev, &chip)) < 0) {
2249 snd_card_free(card);
2250 return err;
2251 }
2252
2253 return cs4231_attach_finish(card, chip);
2254 }
2255 #endif
2256
2257 static int __init cs4231_init(void)
2258 {
2259 #ifdef SBUS_SUPPORT
2260 struct sbus_bus *sbus;
2261 struct sbus_dev *sdev;
2262 #endif
2263 #ifdef EBUS_SUPPORT
2264 struct linux_ebus *ebus;
2265 struct linux_ebus_device *edev;
2266 #endif
2267 int found;
2268
2269 found = 0;
2270
2271 #ifdef SBUS_SUPPORT
2272 for_all_sbusdev(sdev, sbus) {
2273 if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
2274 if (cs4231_sbus_attach(sdev) == 0)
2275 found++;
2276 }
2277 }
2278 #endif
2279 #ifdef EBUS_SUPPORT
2280 for_each_ebus(ebus) {
2281 for_each_ebusdev(edev, ebus) {
2282 int match = 0;
2283
2284 if (!strcmp(edev->prom_node->name, "SUNW,CS4231")) {
2285 match = 1;
2286 } else if (!strcmp(edev->prom_node->name, "audio")) {
2287 const char *compat;
2288
2289 compat = of_get_property(edev->prom_node,
2290 "compatible", NULL);
2291 if (compat && !strcmp(compat, "SUNW,CS4231"))
2292 match = 1;
2293 }
2294
2295 if (match &&
2296 cs4231_ebus_attach(edev) == 0)
2297 found++;
2298 }
2299 }
2300 #endif
2301
2302
2303 return (found > 0) ? 0 : -EIO;
2304 }
2305
2306 static void __exit cs4231_exit(void)
2307 {
2308 struct snd_cs4231 *p = cs4231_list;
2309
2310 while (p != NULL) {
2311 struct snd_cs4231 *next = p->next;
2312
2313 snd_card_free(p->card);
2314
2315 p = next;
2316 }
2317
2318 cs4231_list = NULL;
2319 }
2320
2321 module_init(cs4231_init);
2322 module_exit(cs4231_exit);
Support for the Chinese Samsung S3C2440 based development boards