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1 | /* |
2 | * Routines for control of the AK4114 via I2C and 4-wire serial interface |
3 | * IEC958 (S/PDIF) receiver by Asahi Kasei |
4 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
5 | * |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | * |
21 | */ |
22 | |
23 | #include <linux/slab.h> |
24 | #include <linux/delay.h> |
25 | #include <linux/module.h> |
26 | #include <sound/core.h> |
27 | #include <sound/control.h> |
28 | #include <sound/pcm.h> |
29 | #include <sound/ak4114.h> |
30 | #include <sound/asoundef.h> |
31 | #include <sound/info.h> |
32 | |
33 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
34 | MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei"); |
35 | MODULE_LICENSE("GPL"); |
36 | |
37 | #define AK4114_ADDR 0x00 /* fixed address */ |
38 | |
39 | static void ak4114_stats(struct work_struct *work); |
40 | static void ak4114_init_regs(struct ak4114 *chip); |
41 | |
42 | static void reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char val) |
43 | { |
44 | ak4114->write(ak4114->private_data, reg, val); |
45 | if (reg <= AK4114_REG_INT1_MASK) |
46 | ak4114->regmap[reg] = val; |
47 | else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4) |
48 | ak4114->txcsb[reg-AK4114_REG_TXCSB0] = val; |
49 | } |
50 | |
51 | static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg) |
52 | { |
53 | return ak4114->read(ak4114->private_data, reg); |
54 | } |
55 | |
56 | #if 0 |
57 | static void reg_dump(struct ak4114 *ak4114) |
58 | { |
59 | int i; |
60 | |
61 | printk(KERN_DEBUG "AK4114 REG DUMP:\n"); |
62 | for (i = 0; i < 0x20; i++) |
63 | printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < ARRAY_SIZE(ak4114->regmap) ? ak4114->regmap[i] : 0); |
64 | } |
65 | #endif |
66 | |
67 | static void snd_ak4114_free(struct ak4114 *chip) |
68 | { |
69 | chip->init = 1; /* don't schedule new work */ |
70 | mb(); |
71 | cancel_delayed_work_sync(&chip->work); |
72 | kfree(chip); |
73 | } |
74 | |
75 | static int snd_ak4114_dev_free(struct snd_device *device) |
76 | { |
77 | struct ak4114 *chip = device->device_data; |
78 | snd_ak4114_free(chip); |
79 | return 0; |
80 | } |
81 | |
82 | int snd_ak4114_create(struct snd_card *card, |
83 | ak4114_read_t *read, ak4114_write_t *write, |
84 | const unsigned char pgm[6], const unsigned char txcsb[5], |
85 | void *private_data, struct ak4114 **r_ak4114) |
86 | { |
87 | struct ak4114 *chip; |
88 | int err = 0; |
89 | unsigned char reg; |
90 | static struct snd_device_ops ops = { |
91 | .dev_free = snd_ak4114_dev_free, |
92 | }; |
93 | |
94 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
95 | if (chip == NULL) |
96 | return -ENOMEM; |
97 | spin_lock_init(&chip->lock); |
98 | chip->card = card; |
99 | chip->read = read; |
100 | chip->write = write; |
101 | chip->private_data = private_data; |
102 | INIT_DELAYED_WORK(&chip->work, ak4114_stats); |
103 | |
104 | for (reg = 0; reg < 6; reg++) |
105 | chip->regmap[reg] = pgm[reg]; |
106 | for (reg = 0; reg < 5; reg++) |
107 | chip->txcsb[reg] = txcsb[reg]; |
108 | |
109 | ak4114_init_regs(chip); |
110 | |
111 | chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT); |
112 | chip->rcs1 = reg_read(chip, AK4114_REG_RCS1); |
113 | |
114 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) |
115 | goto __fail; |
116 | |
117 | if (r_ak4114) |
118 | *r_ak4114 = chip; |
119 | return 0; |
120 | |
121 | __fail: |
122 | snd_ak4114_free(chip); |
123 | return err < 0 ? err : -EIO; |
124 | } |
125 | |
126 | void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val) |
127 | { |
128 | if (reg <= AK4114_REG_INT1_MASK) |
129 | reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); |
130 | else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4) |
131 | reg_write(chip, reg, |
132 | (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val); |
133 | } |
134 | |
135 | static void ak4114_init_regs(struct ak4114 *chip) |
136 | { |
137 | unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg; |
138 | |
139 | /* bring the chip to reset state and powerdown state */ |
140 | reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN)); |
141 | udelay(200); |
142 | /* release reset, but leave powerdown */ |
143 | reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN); |
144 | udelay(200); |
145 | for (reg = 1; reg < 6; reg++) |
146 | reg_write(chip, reg, chip->regmap[reg]); |
147 | for (reg = 0; reg < 5; reg++) |
148 | reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]); |
149 | /* release powerdown, everything is initialized now */ |
150 | reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN); |
151 | } |
152 | |
153 | void snd_ak4114_reinit(struct ak4114 *chip) |
154 | { |
155 | chip->init = 1; |
156 | mb(); |
157 | flush_delayed_work(&chip->work); |
158 | ak4114_init_regs(chip); |
159 | /* bring up statistics / event queing */ |
160 | chip->init = 0; |
161 | if (chip->kctls[0]) |
162 | schedule_delayed_work(&chip->work, HZ / 10); |
163 | } |
164 | |
165 | static unsigned int external_rate(unsigned char rcs1) |
166 | { |
167 | switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) { |
168 | case AK4114_FS_32000HZ: return 32000; |
169 | case AK4114_FS_44100HZ: return 44100; |
170 | case AK4114_FS_48000HZ: return 48000; |
171 | case AK4114_FS_88200HZ: return 88200; |
172 | case AK4114_FS_96000HZ: return 96000; |
173 | case AK4114_FS_176400HZ: return 176400; |
174 | case AK4114_FS_192000HZ: return 192000; |
175 | default: return 0; |
176 | } |
177 | } |
178 | |
179 | static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol, |
180 | struct snd_ctl_elem_info *uinfo) |
181 | { |
182 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
183 | uinfo->count = 1; |
184 | uinfo->value.integer.min = 0; |
185 | uinfo->value.integer.max = LONG_MAX; |
186 | return 0; |
187 | } |
188 | |
189 | static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol, |
190 | struct snd_ctl_elem_value *ucontrol) |
191 | { |
192 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
193 | long *ptr; |
194 | |
195 | spin_lock_irq(&chip->lock); |
196 | ptr = (long *)(((char *)chip) + kcontrol->private_value); |
197 | ucontrol->value.integer.value[0] = *ptr; |
198 | *ptr = 0; |
199 | spin_unlock_irq(&chip->lock); |
200 | return 0; |
201 | } |
202 | |
203 | #define snd_ak4114_in_bit_info snd_ctl_boolean_mono_info |
204 | |
205 | static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol, |
206 | struct snd_ctl_elem_value *ucontrol) |
207 | { |
208 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
209 | unsigned char reg = kcontrol->private_value & 0xff; |
210 | unsigned char bit = (kcontrol->private_value >> 8) & 0xff; |
211 | unsigned char inv = (kcontrol->private_value >> 31) & 1; |
212 | |
213 | ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; |
214 | return 0; |
215 | } |
216 | |
217 | static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol, |
218 | struct snd_ctl_elem_info *uinfo) |
219 | { |
220 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
221 | uinfo->count = 1; |
222 | uinfo->value.integer.min = 0; |
223 | uinfo->value.integer.max = 192000; |
224 | return 0; |
225 | } |
226 | |
227 | static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol, |
228 | struct snd_ctl_elem_value *ucontrol) |
229 | { |
230 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
231 | |
232 | ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1)); |
233 | return 0; |
234 | } |
235 | |
236 | static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
237 | { |
238 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
239 | uinfo->count = 1; |
240 | return 0; |
241 | } |
242 | |
243 | static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol, |
244 | struct snd_ctl_elem_value *ucontrol) |
245 | { |
246 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
247 | unsigned i; |
248 | |
249 | for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++) |
250 | ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i); |
251 | return 0; |
252 | } |
253 | |
254 | static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol, |
255 | struct snd_ctl_elem_value *ucontrol) |
256 | { |
257 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
258 | unsigned i; |
259 | |
260 | for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++) |
261 | ucontrol->value.iec958.status[i] = chip->txcsb[i]; |
262 | return 0; |
263 | } |
264 | |
265 | static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol, |
266 | struct snd_ctl_elem_value *ucontrol) |
267 | { |
268 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
269 | unsigned i; |
270 | |
271 | for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++) |
272 | reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]); |
273 | return 0; |
274 | } |
275 | |
276 | static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
277 | { |
278 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
279 | uinfo->count = 1; |
280 | return 0; |
281 | } |
282 | |
283 | static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol, |
284 | struct snd_ctl_elem_value *ucontrol) |
285 | { |
286 | memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE); |
287 | return 0; |
288 | } |
289 | |
290 | static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
291 | { |
292 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
293 | uinfo->value.integer.min = 0; |
294 | uinfo->value.integer.max = 0xffff; |
295 | uinfo->count = 4; |
296 | return 0; |
297 | } |
298 | |
299 | static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol, |
300 | struct snd_ctl_elem_value *ucontrol) |
301 | { |
302 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
303 | unsigned short tmp; |
304 | |
305 | ucontrol->value.integer.value[0] = 0xf8f2; |
306 | ucontrol->value.integer.value[1] = 0x4e1f; |
307 | tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8); |
308 | ucontrol->value.integer.value[2] = tmp; |
309 | tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8); |
310 | ucontrol->value.integer.value[3] = tmp; |
311 | return 0; |
312 | } |
313 | |
314 | static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
315 | { |
316 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
317 | uinfo->count = AK4114_REG_QSUB_SIZE; |
318 | return 0; |
319 | } |
320 | |
321 | static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol, |
322 | struct snd_ctl_elem_value *ucontrol) |
323 | { |
324 | struct ak4114 *chip = snd_kcontrol_chip(kcontrol); |
325 | unsigned i; |
326 | |
327 | for (i = 0; i < AK4114_REG_QSUB_SIZE; i++) |
328 | ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i); |
329 | return 0; |
330 | } |
331 | |
332 | /* Don't forget to change AK4114_CONTROLS define!!! */ |
333 | static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = { |
334 | { |
335 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
336 | .name = "IEC958 Parity Errors", |
337 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
338 | .info = snd_ak4114_in_error_info, |
339 | .get = snd_ak4114_in_error_get, |
340 | .private_value = offsetof(struct ak4114, parity_errors), |
341 | }, |
342 | { |
343 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
344 | .name = "IEC958 V-Bit Errors", |
345 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
346 | .info = snd_ak4114_in_error_info, |
347 | .get = snd_ak4114_in_error_get, |
348 | .private_value = offsetof(struct ak4114, v_bit_errors), |
349 | }, |
350 | { |
351 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
352 | .name = "IEC958 C-CRC Errors", |
353 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
354 | .info = snd_ak4114_in_error_info, |
355 | .get = snd_ak4114_in_error_get, |
356 | .private_value = offsetof(struct ak4114, ccrc_errors), |
357 | }, |
358 | { |
359 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
360 | .name = "IEC958 Q-CRC Errors", |
361 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
362 | .info = snd_ak4114_in_error_info, |
363 | .get = snd_ak4114_in_error_get, |
364 | .private_value = offsetof(struct ak4114, qcrc_errors), |
365 | }, |
366 | { |
367 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
368 | .name = "IEC958 External Rate", |
369 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
370 | .info = snd_ak4114_rate_info, |
371 | .get = snd_ak4114_rate_get, |
372 | }, |
373 | { |
374 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
375 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), |
376 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
377 | .info = snd_ak4114_spdif_mask_info, |
378 | .get = snd_ak4114_spdif_mask_get, |
379 | }, |
380 | { |
381 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
382 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), |
383 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
384 | .info = snd_ak4114_spdif_info, |
385 | .get = snd_ak4114_spdif_playback_get, |
386 | .put = snd_ak4114_spdif_playback_put, |
387 | }, |
388 | { |
389 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
390 | .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK), |
391 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
392 | .info = snd_ak4114_spdif_mask_info, |
393 | .get = snd_ak4114_spdif_mask_get, |
394 | }, |
395 | { |
396 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
397 | .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT), |
398 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
399 | .info = snd_ak4114_spdif_info, |
400 | .get = snd_ak4114_spdif_get, |
401 | }, |
402 | { |
403 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
404 | .name = "IEC958 Preamble Capture Default", |
405 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
406 | .info = snd_ak4114_spdif_pinfo, |
407 | .get = snd_ak4114_spdif_pget, |
408 | }, |
409 | { |
410 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
411 | .name = "IEC958 Q-subcode Capture Default", |
412 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
413 | .info = snd_ak4114_spdif_qinfo, |
414 | .get = snd_ak4114_spdif_qget, |
415 | }, |
416 | { |
417 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
418 | .name = "IEC958 Audio", |
419 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
420 | .info = snd_ak4114_in_bit_info, |
421 | .get = snd_ak4114_in_bit_get, |
422 | .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0, |
423 | }, |
424 | { |
425 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
426 | .name = "IEC958 Non-PCM Bitstream", |
427 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
428 | .info = snd_ak4114_in_bit_info, |
429 | .get = snd_ak4114_in_bit_get, |
430 | .private_value = (6<<8) | AK4114_REG_RCS0, |
431 | }, |
432 | { |
433 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
434 | .name = "IEC958 DTS Bitstream", |
435 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
436 | .info = snd_ak4114_in_bit_info, |
437 | .get = snd_ak4114_in_bit_get, |
438 | .private_value = (3<<8) | AK4114_REG_RCS0, |
439 | }, |
440 | { |
441 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
442 | .name = "IEC958 PPL Lock Status", |
443 | .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
444 | .info = snd_ak4114_in_bit_info, |
445 | .get = snd_ak4114_in_bit_get, |
446 | .private_value = (1<<31) | (4<<8) | AK4114_REG_RCS0, |
447 | } |
448 | }; |
449 | |
450 | |
451 | static void snd_ak4114_proc_regs_read(struct snd_info_entry *entry, |
452 | struct snd_info_buffer *buffer) |
453 | { |
454 | struct ak4114 *ak4114 = entry->private_data; |
455 | int reg, val; |
456 | /* all ak4114 registers 0x00 - 0x1f */ |
457 | for (reg = 0; reg < 0x20; reg++) { |
458 | val = reg_read(ak4114, reg); |
459 | snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val); |
460 | } |
461 | } |
462 | |
463 | static void snd_ak4114_proc_init(struct ak4114 *ak4114) |
464 | { |
465 | struct snd_info_entry *entry; |
466 | if (!snd_card_proc_new(ak4114->card, "ak4114", &entry)) |
467 | snd_info_set_text_ops(entry, ak4114, snd_ak4114_proc_regs_read); |
468 | } |
469 | |
470 | int snd_ak4114_build(struct ak4114 *ak4114, |
471 | struct snd_pcm_substream *ply_substream, |
472 | struct snd_pcm_substream *cap_substream) |
473 | { |
474 | struct snd_kcontrol *kctl; |
475 | unsigned int idx; |
476 | int err; |
477 | |
478 | if (snd_BUG_ON(!cap_substream)) |
479 | return -EINVAL; |
480 | ak4114->playback_substream = ply_substream; |
481 | ak4114->capture_substream = cap_substream; |
482 | for (idx = 0; idx < AK4114_CONTROLS; idx++) { |
483 | kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114); |
484 | if (kctl == NULL) |
485 | return -ENOMEM; |
486 | if (strstr(kctl->id.name, "Playback")) { |
487 | if (ply_substream == NULL) { |
488 | snd_ctl_free_one(kctl); |
489 | ak4114->kctls[idx] = NULL; |
490 | continue; |
491 | } |
492 | kctl->id.device = ply_substream->pcm->device; |
493 | kctl->id.subdevice = ply_substream->number; |
494 | } else { |
495 | kctl->id.device = cap_substream->pcm->device; |
496 | kctl->id.subdevice = cap_substream->number; |
497 | } |
498 | err = snd_ctl_add(ak4114->card, kctl); |
499 | if (err < 0) |
500 | return err; |
501 | ak4114->kctls[idx] = kctl; |
502 | } |
503 | snd_ak4114_proc_init(ak4114); |
504 | /* trigger workq */ |
505 | schedule_delayed_work(&ak4114->work, HZ / 10); |
506 | return 0; |
507 | } |
508 | |
509 | /* notify kcontrols if any parameters are changed */ |
510 | static void ak4114_notify(struct ak4114 *ak4114, |
511 | unsigned char rcs0, unsigned char rcs1, |
512 | unsigned char c0, unsigned char c1) |
513 | { |
514 | if (!ak4114->kctls[0]) |
515 | return; |
516 | |
517 | if (rcs0 & AK4114_PAR) |
518 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
519 | &ak4114->kctls[0]->id); |
520 | if (rcs0 & AK4114_V) |
521 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
522 | &ak4114->kctls[1]->id); |
523 | if (rcs1 & AK4114_CCRC) |
524 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
525 | &ak4114->kctls[2]->id); |
526 | if (rcs1 & AK4114_QCRC) |
527 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
528 | &ak4114->kctls[3]->id); |
529 | |
530 | /* rate change */ |
531 | if (c1 & 0xf0) |
532 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
533 | &ak4114->kctls[4]->id); |
534 | |
535 | if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT)) |
536 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
537 | &ak4114->kctls[9]->id); |
538 | if (c0 & AK4114_QINT) |
539 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
540 | &ak4114->kctls[10]->id); |
541 | |
542 | if (c0 & AK4114_AUDION) |
543 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
544 | &ak4114->kctls[11]->id); |
545 | if (c0 & AK4114_AUTO) |
546 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
547 | &ak4114->kctls[12]->id); |
548 | if (c0 & AK4114_DTSCD) |
549 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
550 | &ak4114->kctls[13]->id); |
551 | if (c0 & AK4114_UNLCK) |
552 | snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, |
553 | &ak4114->kctls[14]->id); |
554 | } |
555 | |
556 | int snd_ak4114_external_rate(struct ak4114 *ak4114) |
557 | { |
558 | unsigned char rcs1; |
559 | |
560 | rcs1 = reg_read(ak4114, AK4114_REG_RCS1); |
561 | return external_rate(rcs1); |
562 | } |
563 | |
564 | int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags) |
565 | { |
566 | struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL; |
567 | unsigned long _flags; |
568 | int res = 0; |
569 | unsigned char rcs0, rcs1; |
570 | unsigned char c0, c1; |
571 | |
572 | rcs1 = reg_read(ak4114, AK4114_REG_RCS1); |
573 | if (flags & AK4114_CHECK_NO_STAT) |
574 | goto __rate; |
575 | rcs0 = reg_read(ak4114, AK4114_REG_RCS0); |
576 | spin_lock_irqsave(&ak4114->lock, _flags); |
577 | if (rcs0 & AK4114_PAR) |
578 | ak4114->parity_errors++; |
579 | if (rcs1 & AK4114_V) |
580 | ak4114->v_bit_errors++; |
581 | if (rcs1 & AK4114_CCRC) |
582 | ak4114->ccrc_errors++; |
583 | if (rcs1 & AK4114_QCRC) |
584 | ak4114->qcrc_errors++; |
585 | c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^ |
586 | (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)); |
587 | c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0); |
588 | ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT); |
589 | ak4114->rcs1 = rcs1; |
590 | spin_unlock_irqrestore(&ak4114->lock, _flags); |
591 | |
592 | ak4114_notify(ak4114, rcs0, rcs1, c0, c1); |
593 | if (ak4114->change_callback && (c0 | c1) != 0) |
594 | ak4114->change_callback(ak4114, c0, c1); |
595 | |
596 | __rate: |
597 | /* compare rate */ |
598 | res = external_rate(rcs1); |
599 | if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) { |
600 | snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags); |
601 | if (snd_pcm_running(ak4114->capture_substream)) { |
602 | // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res); |
603 | snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING); |
604 | res = 1; |
605 | } |
606 | snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags); |
607 | } |
608 | return res; |
609 | } |
610 | |
611 | static void ak4114_stats(struct work_struct *work) |
612 | { |
613 | struct ak4114 *chip = container_of(work, struct ak4114, work.work); |
614 | |
615 | if (!chip->init) |
616 | snd_ak4114_check_rate_and_errors(chip, chip->check_flags); |
617 | |
618 | schedule_delayed_work(&chip->work, HZ / 10); |
619 | } |
620 | |
621 | EXPORT_SYMBOL(snd_ak4114_create); |
622 | EXPORT_SYMBOL(snd_ak4114_reg_write); |
623 | EXPORT_SYMBOL(snd_ak4114_reinit); |
624 | EXPORT_SYMBOL(snd_ak4114_build); |
625 | EXPORT_SYMBOL(snd_ak4114_external_rate); |
626 | EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors); |
627 |
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Tags:
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v2.6.34-rc5
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