fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / sound / soc.h
blobf47ef1f75f18107a92e86e69f864ea1e6b0aec47
1 /*
2 * linux/sound/soc.h -- ALSA SoC Layer
4 * Author: Liam Girdwood
5 * Created: Aug 11th 2005
6 * Copyright: Wolfson Microelectronics. PLC.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __LINUX_SND_SOC_H
14 #define __LINUX_SND_SOC_H
16 #include <linux/platform_device.h>
17 #include <linux/types.h>
18 #include <linux/workqueue.h>
19 #include <sound/driver.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/control.h>
23 #include <sound/ac97_codec.h>
25 #define SND_SOC_VERSION "0.13.1"
28 * Convenience kcontrol builders
30 #define SOC_SINGLE_VALUE(reg,shift,mask,invert) ((reg) | ((shift) << 8) |\
31 ((shift) << 12) | ((mask) << 16) | ((invert) << 24))
32 #define SOC_SINGLE_VALUE_EXT(reg,mask,invert) ((reg) | ((mask) << 16) |\
33 ((invert) << 31))
34 #define SOC_SINGLE(xname, reg, shift, mask, invert) \
35 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
36 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
37 .put = snd_soc_put_volsw, \
38 .private_value = SOC_SINGLE_VALUE(reg, shift, mask, invert) }
39 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
40 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
41 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
42 .put = snd_soc_put_volsw, \
43 .private_value = (reg) | ((shift_left) << 8) | \
44 ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
45 #define SOC_DOUBLE_R(xname, reg_left, reg_right, shift, mask, invert) \
46 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
47 .info = snd_soc_info_volsw_2r, \
48 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
49 .private_value = (reg_left) | ((shift) << 8) | \
50 ((mask) << 12) | ((invert) << 20) | ((reg_right) << 24) }
51 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
52 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
53 .mask = xmask, .texts = xtexts }
54 #define SOC_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
55 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
56 #define SOC_ENUM_SINGLE_EXT(xmask, xtexts) \
57 { .mask = xmask, .texts = xtexts }
58 #define SOC_ENUM(xname, xenum) \
59 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
60 .info = snd_soc_info_enum_double, \
61 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
62 .private_value = (unsigned long)&xenum }
63 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmask, xinvert,\
64 xhandler_get, xhandler_put) \
65 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
66 .info = snd_soc_info_volsw, \
67 .get = xhandler_get, .put = xhandler_put, \
68 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmask, xinvert) }
69 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
70 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
71 .info = snd_soc_info_bool_ext, \
72 .get = xhandler_get, .put = xhandler_put, \
73 .private_value = xdata }
74 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
75 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
76 .info = snd_soc_info_enum_ext, \
77 .get = xhandler_get, .put = xhandler_put, \
78 .private_value = (unsigned long)&xenum }
81 * Digital Audio Interface (DAI) types
83 #define SND_SOC_DAI_AC97 0x1
84 #define SND_SOC_DAI_I2S 0x2
85 #define SND_SOC_DAI_PCM 0x4
86 #define SND_SOC_DAI_AC97_BUS 0x8 /* for custom i.e. non ac97_codec.c */
89 * DAI hardware audio formats
91 #define SND_SOC_DAIFMT_I2S 0 /* I2S mode */
92 #define SND_SOC_DAIFMT_RIGHT_J 1 /* Right justified mode */
93 #define SND_SOC_DAIFMT_LEFT_J 2 /* Left Justified mode */
94 #define SND_SOC_DAIFMT_DSP_A 3 /* L data msb after FRM or LRC */
95 #define SND_SOC_DAIFMT_DSP_B 4 /* L data msb during FRM or LRC */
96 #define SND_SOC_DAIFMT_AC97 5 /* AC97 */
98 #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J
99 #define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J
102 * DAI Gating
104 #define SND_SOC_DAIFMT_CONT (0 << 4) /* continuous clock */
105 #define SND_SOC_DAIFMT_GATED (1 << 4) /* clock is gated when not Tx/Rx */
108 * DAI hardware signal inversions
110 #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */
111 #define SND_SOC_DAIFMT_NB_IF (1 << 8) /* normal bclk + inv frm */
112 #define SND_SOC_DAIFMT_IB_NF (2 << 8) /* invert bclk + nor frm */
113 #define SND_SOC_DAIFMT_IB_IF (3 << 8) /* invert bclk + frm */
116 * DAI hardware clock masters
117 * This is wrt the codec, the inverse is true for the interface
118 * i.e. if the codec is clk and frm master then the interface is
119 * clk and frame slave.
121 #define SND_SOC_DAIFMT_CBM_CFM (0 << 12) /* codec clk & frm master */
122 #define SND_SOC_DAIFMT_CBS_CFM (1 << 12) /* codec clk slave & frm master */
123 #define SND_SOC_DAIFMT_CBM_CFS (2 << 12) /* codec clk master & frame slave */
124 #define SND_SOC_DAIFMT_CBS_CFS (3 << 12) /* codec clk & frm slave */
126 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f
127 #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0
128 #define SND_SOC_DAIFMT_INV_MASK 0x0f00
129 #define SND_SOC_DAIFMT_MASTER_MASK 0xf000
133 * Master Clock Directions
135 #define SND_SOC_CLOCK_IN 0
136 #define SND_SOC_CLOCK_OUT 1
139 * AC97 codec ID's bitmask
141 #define SND_SOC_DAI_AC97_ID0 (1 << 0)
142 #define SND_SOC_DAI_AC97_ID1 (1 << 1)
143 #define SND_SOC_DAI_AC97_ID2 (1 << 2)
144 #define SND_SOC_DAI_AC97_ID3 (1 << 3)
146 struct snd_soc_device;
147 struct snd_soc_pcm_stream;
148 struct snd_soc_ops;
149 struct snd_soc_dai_mode;
150 struct snd_soc_pcm_runtime;
151 struct snd_soc_codec_dai;
152 struct snd_soc_cpu_dai;
153 struct snd_soc_codec;
154 struct snd_soc_machine_config;
155 struct soc_enum;
156 struct snd_soc_ac97_ops;
157 struct snd_soc_clock_info;
159 typedef int (*hw_write_t)(void *,const char* ,int);
160 typedef int (*hw_read_t)(void *,char* ,int);
162 extern struct snd_ac97_bus_ops soc_ac97_ops;
164 /* pcm <-> DAI connect */
165 void snd_soc_free_pcms(struct snd_soc_device *socdev);
166 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
167 int snd_soc_register_card(struct snd_soc_device *socdev);
169 /* set runtime hw params */
170 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
171 const struct snd_pcm_hardware *hw);
173 /* codec IO */
174 #define snd_soc_read(codec, reg) codec->read(codec, reg)
175 #define snd_soc_write(codec, reg, value) codec->write(codec, reg, value)
177 /* codec register bit access */
178 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
179 unsigned short mask, unsigned short value);
180 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
181 unsigned short mask, unsigned short value);
183 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
184 struct snd_ac97_bus_ops *ops, int num);
185 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
188 *Controls
190 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
191 void *data, char *long_name);
192 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
193 struct snd_ctl_elem_info *uinfo);
194 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
195 struct snd_ctl_elem_info *uinfo);
196 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
197 struct snd_ctl_elem_value *ucontrol);
198 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol);
200 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
201 struct snd_ctl_elem_info *uinfo);
202 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
203 struct snd_ctl_elem_info *uinfo);
204 #define snd_soc_info_bool_ext snd_ctl_boolean_mono
205 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
206 struct snd_ctl_elem_value *ucontrol);
207 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
208 struct snd_ctl_elem_value *ucontrol);
209 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
210 struct snd_ctl_elem_info *uinfo);
211 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol);
213 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
214 struct snd_ctl_elem_value *ucontrol);
216 /* SoC PCM stream information */
217 struct snd_soc_pcm_stream {
218 char *stream_name;
219 u64 formats; /* SNDRV_PCM_FMTBIT_* */
220 unsigned int rates; /* SNDRV_PCM_RATE_* */
221 unsigned int rate_min; /* min rate */
222 unsigned int rate_max; /* max rate */
223 unsigned int channels_min; /* min channels */
224 unsigned int channels_max; /* max channels */
225 unsigned int active:1; /* stream is in use */
228 /* SoC audio ops */
229 struct snd_soc_ops {
230 int (*startup)(struct snd_pcm_substream *);
231 void (*shutdown)(struct snd_pcm_substream *);
232 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
233 int (*hw_free)(struct snd_pcm_substream *);
234 int (*prepare)(struct snd_pcm_substream *);
235 int (*trigger)(struct snd_pcm_substream *, int);
238 /* ASoC codec DAI ops */
239 struct snd_soc_codec_ops {
240 /* codec DAI clocking configuration */
241 int (*set_sysclk)(struct snd_soc_codec_dai *codec_dai,
242 int clk_id, unsigned int freq, int dir);
243 int (*set_pll)(struct snd_soc_codec_dai *codec_dai,
244 int pll_id, unsigned int freq_in, unsigned int freq_out);
245 int (*set_clkdiv)(struct snd_soc_codec_dai *codec_dai,
246 int div_id, int div);
248 /* CPU DAI format configuration */
249 int (*set_fmt)(struct snd_soc_codec_dai *codec_dai,
250 unsigned int fmt);
251 int (*set_tdm_slot)(struct snd_soc_codec_dai *codec_dai,
252 unsigned int mask, int slots);
253 int (*set_tristate)(struct snd_soc_codec_dai *, int tristate);
255 /* digital mute */
256 int (*digital_mute)(struct snd_soc_codec_dai *, int mute);
259 /* ASoC cpu DAI ops */
260 struct snd_soc_cpu_ops {
261 /* CPU DAI clocking configuration */
262 int (*set_sysclk)(struct snd_soc_cpu_dai *cpu_dai,
263 int clk_id, unsigned int freq, int dir);
264 int (*set_clkdiv)(struct snd_soc_cpu_dai *cpu_dai,
265 int div_id, int div);
266 int (*set_pll)(struct snd_soc_cpu_dai *cpu_dai,
267 int pll_id, unsigned int freq_in, unsigned int freq_out);
269 /* CPU DAI format configuration */
270 int (*set_fmt)(struct snd_soc_cpu_dai *cpu_dai,
271 unsigned int fmt);
272 int (*set_tdm_slot)(struct snd_soc_cpu_dai *cpu_dai,
273 unsigned int mask, int slots);
274 int (*set_tristate)(struct snd_soc_cpu_dai *, int tristate);
277 /* SoC Codec DAI */
278 struct snd_soc_codec_dai {
279 char *name;
280 int id;
281 unsigned char type;
283 /* DAI capabilities */
284 struct snd_soc_pcm_stream playback;
285 struct snd_soc_pcm_stream capture;
287 /* DAI runtime info */
288 struct snd_soc_codec *codec;
289 unsigned int active;
290 unsigned char pop_wait:1;
292 /* ops */
293 struct snd_soc_ops ops;
294 struct snd_soc_codec_ops dai_ops;
296 /* DAI private data */
297 void *private_data;
300 /* SoC CPU DAI */
301 struct snd_soc_cpu_dai {
303 /* DAI description */
304 char *name;
305 unsigned int id;
306 unsigned char type;
308 /* DAI callbacks */
309 int (*probe)(struct platform_device *pdev);
310 void (*remove)(struct platform_device *pdev);
311 int (*suspend)(struct platform_device *pdev,
312 struct snd_soc_cpu_dai *cpu_dai);
313 int (*resume)(struct platform_device *pdev,
314 struct snd_soc_cpu_dai *cpu_dai);
316 /* ops */
317 struct snd_soc_ops ops;
318 struct snd_soc_cpu_ops dai_ops;
320 /* DAI capabilities */
321 struct snd_soc_pcm_stream capture;
322 struct snd_soc_pcm_stream playback;
324 /* DAI runtime info */
325 struct snd_pcm_runtime *runtime;
326 unsigned char active:1;
327 void *dma_data;
329 /* DAI private data */
330 void *private_data;
333 /* SoC Audio Codec */
334 struct snd_soc_codec {
335 char *name;
336 struct module *owner;
337 struct mutex mutex;
339 /* callbacks */
340 int (*dapm_event)(struct snd_soc_codec *codec, int event);
342 /* runtime */
343 struct snd_card *card;
344 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
345 unsigned int active;
346 unsigned int pcm_devs;
347 void *private_data;
349 /* codec IO */
350 void *control_data; /* codec control (i2c/3wire) data */
351 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
352 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
353 hw_write_t hw_write;
354 hw_read_t hw_read;
355 void *reg_cache;
356 short reg_cache_size;
357 short reg_cache_step;
359 /* dapm */
360 struct list_head dapm_widgets;
361 struct list_head dapm_paths;
362 unsigned int dapm_state;
363 unsigned int suspend_dapm_state;
364 struct delayed_work delayed_work;
366 /* codec DAI's */
367 struct snd_soc_codec_dai *dai;
368 unsigned int num_dai;
371 /* codec device */
372 struct snd_soc_codec_device {
373 int (*probe)(struct platform_device *pdev);
374 int (*remove)(struct platform_device *pdev);
375 int (*suspend)(struct platform_device *pdev, pm_message_t state);
376 int (*resume)(struct platform_device *pdev);
379 /* SoC platform interface */
380 struct snd_soc_platform {
381 char *name;
383 int (*probe)(struct platform_device *pdev);
384 int (*remove)(struct platform_device *pdev);
385 int (*suspend)(struct platform_device *pdev,
386 struct snd_soc_cpu_dai *cpu_dai);
387 int (*resume)(struct platform_device *pdev,
388 struct snd_soc_cpu_dai *cpu_dai);
390 /* pcm creation and destruction */
391 int (*pcm_new)(struct snd_card *, struct snd_soc_codec_dai *,
392 struct snd_pcm *);
393 void (*pcm_free)(struct snd_pcm *);
395 /* platform stream ops */
396 struct snd_pcm_ops *pcm_ops;
399 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
400 struct snd_soc_dai_link {
401 char *name; /* Codec name */
402 char *stream_name; /* Stream name */
404 /* DAI */
405 struct snd_soc_codec_dai *codec_dai;
406 struct snd_soc_cpu_dai *cpu_dai;
408 /* machine stream operations */
409 struct snd_soc_ops *ops;
411 /* codec/machine specific init - e.g. add machine controls */
412 int (*init)(struct snd_soc_codec *codec);
415 /* SoC machine */
416 struct snd_soc_machine {
417 char *name;
419 int (*probe)(struct platform_device *pdev);
420 int (*remove)(struct platform_device *pdev);
422 /* the pre and post PM functions are used to do any PM work before and
423 * after the codec and DAI's do any PM work. */
424 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
425 int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
426 int (*resume_pre)(struct platform_device *pdev);
427 int (*resume_post)(struct platform_device *pdev);
429 /* CPU <--> Codec DAI links */
430 struct snd_soc_dai_link *dai_link;
431 int num_links;
434 /* SoC Device - the audio subsystem */
435 struct snd_soc_device {
436 struct device *dev;
437 struct snd_soc_machine *machine;
438 struct snd_soc_platform *platform;
439 struct snd_soc_codec *codec;
440 struct snd_soc_codec_device *codec_dev;
441 struct delayed_work delayed_work;
442 void *codec_data;
445 /* runtime channel data */
446 struct snd_soc_pcm_runtime {
447 struct snd_soc_dai_link *dai;
448 struct snd_soc_device *socdev;
451 /* enumerated kcontrol */
452 struct soc_enum {
453 unsigned short reg;
454 unsigned short reg2;
455 unsigned char shift_l;
456 unsigned char shift_r;
457 unsigned int mask;
458 const char **texts;
459 void *dapm;
462 #endif