diff options
Diffstat (limited to 'firmware/target/hosted/ibasso/tinyalsa')
-rw-r--r-- | firmware/target/hosted/ibasso/tinyalsa/include/sound/asound.h | 820 | ||||
-rw-r--r-- | firmware/target/hosted/ibasso/tinyalsa/include/tinyalsa/asoundlib.h | 260 | ||||
-rw-r--r-- | firmware/target/hosted/ibasso/tinyalsa/mixer.c | 502 | ||||
-rw-r--r-- | firmware/target/hosted/ibasso/tinyalsa/pcm.c | 1049 |
4 files changed, 2631 insertions, 0 deletions
diff --git a/firmware/target/hosted/ibasso/tinyalsa/include/sound/asound.h b/firmware/target/hosted/ibasso/tinyalsa/include/sound/asound.h new file mode 100644 index 0000000000..9dd66fe169 --- /dev/null +++ b/firmware/target/hosted/ibasso/tinyalsa/include/sound/asound.h | |||
@@ -0,0 +1,820 @@ | |||
1 | /**************************************************************************** | ||
2 | **************************************************************************** | ||
3 | *** | ||
4 | *** This header was automatically generated from a Linux kernel header | ||
5 | *** of the same name, to make information necessary for userspace to | ||
6 | *** call into the kernel available to libc. It contains only constants, | ||
7 | *** structures, and macros generated from the original header, and thus, | ||
8 | *** contains no copyrightable information. | ||
9 | *** | ||
10 | **************************************************************************** | ||
11 | ****************************************************************************/ | ||
12 | #ifndef __SOUND_ASOUND_H | ||
13 | #define __SOUND_ASOUND_H | ||
14 | |||
15 | #include <linux/types.h> | ||
16 | |||
17 | #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) | ||
18 | #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) | ||
19 | #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) | ||
20 | #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) | ||
21 | #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) | ||
22 | |||
23 | struct snd_aes_iec958 { | ||
24 | unsigned char status[24]; | ||
25 | unsigned char subcode[147]; | ||
26 | unsigned char pad; | ||
27 | unsigned char dig_subframe[4]; | ||
28 | }; | ||
29 | |||
30 | #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) | ||
31 | |||
32 | enum { | ||
33 | SNDRV_HWDEP_IFACE_OPL2 = 0, | ||
34 | SNDRV_HWDEP_IFACE_OPL3, | ||
35 | SNDRV_HWDEP_IFACE_OPL4, | ||
36 | SNDRV_HWDEP_IFACE_SB16CSP, | ||
37 | SNDRV_HWDEP_IFACE_EMU10K1, | ||
38 | SNDRV_HWDEP_IFACE_YSS225, | ||
39 | SNDRV_HWDEP_IFACE_ICS2115, | ||
40 | SNDRV_HWDEP_IFACE_SSCAPE, | ||
41 | SNDRV_HWDEP_IFACE_VX, | ||
42 | SNDRV_HWDEP_IFACE_MIXART, | ||
43 | SNDRV_HWDEP_IFACE_USX2Y, | ||
44 | SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, | ||
45 | SNDRV_HWDEP_IFACE_BLUETOOTH, | ||
46 | SNDRV_HWDEP_IFACE_USX2Y_PCM, | ||
47 | SNDRV_HWDEP_IFACE_PCXHR, | ||
48 | SNDRV_HWDEP_IFACE_SB_RC, | ||
49 | SNDRV_HWDEP_IFACE_HDA, | ||
50 | SNDRV_HWDEP_IFACE_USB_STREAM, | ||
51 | |||
52 | SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM | ||
53 | }; | ||
54 | |||
55 | struct snd_hwdep_info { | ||
56 | unsigned int device; | ||
57 | int card; | ||
58 | unsigned char id[64]; | ||
59 | unsigned char name[80]; | ||
60 | int iface; | ||
61 | unsigned char reserved[64]; | ||
62 | }; | ||
63 | |||
64 | struct snd_hwdep_dsp_status { | ||
65 | unsigned int version; | ||
66 | unsigned char id[32]; | ||
67 | unsigned int num_dsps; | ||
68 | unsigned int dsp_loaded; | ||
69 | unsigned int chip_ready; | ||
70 | unsigned char reserved[16]; | ||
71 | }; | ||
72 | |||
73 | struct snd_hwdep_dsp_image { | ||
74 | unsigned int index; | ||
75 | unsigned char name[64]; | ||
76 | unsigned char __user *image; | ||
77 | size_t length; | ||
78 | unsigned long driver_data; | ||
79 | }; | ||
80 | |||
81 | #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) | ||
82 | #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) | ||
83 | #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) | ||
84 | #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) | ||
85 | |||
86 | #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 10) | ||
87 | |||
88 | typedef unsigned long snd_pcm_uframes_t; | ||
89 | typedef signed long snd_pcm_sframes_t; | ||
90 | |||
91 | enum { | ||
92 | SNDRV_PCM_CLASS_GENERIC = 0, | ||
93 | SNDRV_PCM_CLASS_MULTI, | ||
94 | SNDRV_PCM_CLASS_MODEM, | ||
95 | SNDRV_PCM_CLASS_DIGITIZER, | ||
96 | |||
97 | SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, | ||
98 | }; | ||
99 | |||
100 | enum { | ||
101 | SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, | ||
102 | SNDRV_PCM_SUBCLASS_MULTI_MIX, | ||
103 | |||
104 | SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, | ||
105 | }; | ||
106 | |||
107 | enum { | ||
108 | SNDRV_PCM_STREAM_PLAYBACK = 0, | ||
109 | SNDRV_PCM_STREAM_CAPTURE, | ||
110 | SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, | ||
111 | }; | ||
112 | |||
113 | typedef int __bitwise snd_pcm_access_t; | ||
114 | #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) | ||
115 | #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) | ||
116 | #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) | ||
117 | #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) | ||
118 | #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) | ||
119 | #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED | ||
120 | |||
121 | typedef int __bitwise snd_pcm_format_t; | ||
122 | #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) | ||
123 | #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) | ||
124 | #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) | ||
125 | #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) | ||
126 | #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) | ||
127 | #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) | ||
128 | #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) | ||
129 | #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) | ||
130 | #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) | ||
131 | #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) | ||
132 | #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) | ||
133 | #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) | ||
134 | #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) | ||
135 | #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) | ||
136 | #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) | ||
137 | #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) | ||
138 | #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) | ||
139 | #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) | ||
140 | #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) | ||
141 | #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) | ||
142 | #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) | ||
143 | #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) | ||
144 | #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) | ||
145 | #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) | ||
146 | #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) | ||
147 | #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) | ||
148 | #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) | ||
149 | #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) | ||
150 | #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) | ||
151 | #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) | ||
152 | #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) | ||
153 | #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) | ||
154 | #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) | ||
155 | #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) | ||
156 | #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) | ||
157 | #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) | ||
158 | #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) | ||
159 | #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) | ||
160 | #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) | ||
161 | #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) | ||
162 | #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) | ||
163 | #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) | ||
164 | #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B | ||
165 | |||
166 | #ifdef SNDRV_LITTLE_ENDIAN | ||
167 | #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE | ||
168 | #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE | ||
169 | #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE | ||
170 | #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE | ||
171 | #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE | ||
172 | #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE | ||
173 | #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE | ||
174 | #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE | ||
175 | #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE | ||
176 | #endif | ||
177 | #ifdef SNDRV_BIG_ENDIAN | ||
178 | #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE | ||
179 | #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE | ||
180 | #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE | ||
181 | #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE | ||
182 | #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE | ||
183 | #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE | ||
184 | #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE | ||
185 | #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE | ||
186 | #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE | ||
187 | #endif | ||
188 | |||
189 | typedef int __bitwise snd_pcm_subformat_t; | ||
190 | #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) | ||
191 | #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD | ||
192 | |||
193 | #define SNDRV_PCM_INFO_MMAP 0x00000001 | ||
194 | #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 | ||
195 | #define SNDRV_PCM_INFO_DOUBLE 0x00000004 | ||
196 | #define SNDRV_PCM_INFO_BATCH 0x00000010 | ||
197 | #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 | ||
198 | #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 | ||
199 | #define SNDRV_PCM_INFO_COMPLEX 0x00000400 | ||
200 | #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 | ||
201 | #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 | ||
202 | #define SNDRV_PCM_INFO_RESUME 0x00040000 | ||
203 | #define SNDRV_PCM_INFO_PAUSE 0x00080000 | ||
204 | #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 | ||
205 | #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 | ||
206 | #define SNDRV_PCM_INFO_SYNC_START 0x00400000 | ||
207 | #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 | ||
208 | #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 | ||
209 | |||
210 | typedef int __bitwise snd_pcm_state_t; | ||
211 | #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) | ||
212 | #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) | ||
213 | #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) | ||
214 | #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) | ||
215 | #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) | ||
216 | #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) | ||
217 | #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) | ||
218 | #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) | ||
219 | #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) | ||
220 | #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED | ||
221 | |||
222 | enum { | ||
223 | SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, | ||
224 | SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, | ||
225 | SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, | ||
226 | }; | ||
227 | |||
228 | union snd_pcm_sync_id { | ||
229 | unsigned char id[16]; | ||
230 | unsigned short id16[8]; | ||
231 | unsigned int id32[4]; | ||
232 | }; | ||
233 | |||
234 | struct snd_pcm_info { | ||
235 | unsigned int device; | ||
236 | unsigned int subdevice; | ||
237 | int stream; | ||
238 | int card; | ||
239 | unsigned char id[64]; | ||
240 | unsigned char name[80]; | ||
241 | unsigned char subname[32]; | ||
242 | int dev_class; | ||
243 | int dev_subclass; | ||
244 | unsigned int subdevices_count; | ||
245 | unsigned int subdevices_avail; | ||
246 | union snd_pcm_sync_id sync; | ||
247 | unsigned char reserved[64]; | ||
248 | }; | ||
249 | |||
250 | typedef int snd_pcm_hw_param_t; | ||
251 | #define SNDRV_PCM_HW_PARAM_ACCESS 0 | ||
252 | #define SNDRV_PCM_HW_PARAM_FORMAT 1 | ||
253 | #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 | ||
254 | #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS | ||
255 | #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT | ||
256 | |||
257 | #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 | ||
258 | #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 | ||
259 | #define SNDRV_PCM_HW_PARAM_CHANNELS 10 | ||
260 | #define SNDRV_PCM_HW_PARAM_RATE 11 | ||
261 | #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 | ||
262 | #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 | ||
263 | #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 | ||
264 | #define SNDRV_PCM_HW_PARAM_PERIODS 15 | ||
265 | #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 | ||
266 | #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 | ||
267 | #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 | ||
268 | #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 | ||
269 | #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS | ||
270 | #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME | ||
271 | |||
272 | #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) | ||
273 | #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) | ||
274 | #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) | ||
275 | |||
276 | struct snd_interval { | ||
277 | unsigned int min, max; | ||
278 | unsigned int openmin:1, | ||
279 | openmax:1, | ||
280 | integer:1, | ||
281 | empty:1; | ||
282 | }; | ||
283 | |||
284 | #define SNDRV_MASK_MAX 256 | ||
285 | |||
286 | struct snd_mask { | ||
287 | __u32 bits[(SNDRV_MASK_MAX+31)/32]; | ||
288 | }; | ||
289 | |||
290 | struct snd_pcm_hw_params { | ||
291 | unsigned int flags; | ||
292 | struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - | ||
293 | SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; | ||
294 | struct snd_mask mres[5]; | ||
295 | struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - | ||
296 | SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; | ||
297 | struct snd_interval ires[9]; | ||
298 | unsigned int rmask; | ||
299 | unsigned int cmask; | ||
300 | unsigned int info; | ||
301 | unsigned int msbits; | ||
302 | unsigned int rate_num; | ||
303 | unsigned int rate_den; | ||
304 | snd_pcm_uframes_t fifo_size; | ||
305 | unsigned char reserved[64]; | ||
306 | }; | ||
307 | |||
308 | enum { | ||
309 | SNDRV_PCM_TSTAMP_NONE = 0, | ||
310 | SNDRV_PCM_TSTAMP_ENABLE, | ||
311 | SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, | ||
312 | }; | ||
313 | |||
314 | struct snd_pcm_sw_params { | ||
315 | int tstamp_mode; | ||
316 | unsigned int period_step; | ||
317 | unsigned int sleep_min; | ||
318 | snd_pcm_uframes_t avail_min; | ||
319 | snd_pcm_uframes_t xfer_align; | ||
320 | snd_pcm_uframes_t start_threshold; | ||
321 | snd_pcm_uframes_t stop_threshold; | ||
322 | snd_pcm_uframes_t silence_threshold; | ||
323 | snd_pcm_uframes_t silence_size; | ||
324 | snd_pcm_uframes_t boundary; | ||
325 | unsigned char reserved[64]; | ||
326 | }; | ||
327 | |||
328 | struct snd_pcm_channel_info { | ||
329 | unsigned int channel; | ||
330 | __kernel_off_t offset; | ||
331 | unsigned int first; | ||
332 | unsigned int step; | ||
333 | }; | ||
334 | |||
335 | struct snd_pcm_status { | ||
336 | snd_pcm_state_t state; | ||
337 | struct timespec trigger_tstamp; | ||
338 | struct timespec tstamp; | ||
339 | snd_pcm_uframes_t appl_ptr; | ||
340 | snd_pcm_uframes_t hw_ptr; | ||
341 | snd_pcm_sframes_t delay; | ||
342 | snd_pcm_uframes_t avail; | ||
343 | snd_pcm_uframes_t avail_max; | ||
344 | snd_pcm_uframes_t overrange; | ||
345 | snd_pcm_state_t suspended_state; | ||
346 | unsigned char reserved[60]; | ||
347 | }; | ||
348 | |||
349 | struct snd_pcm_mmap_status { | ||
350 | snd_pcm_state_t state; | ||
351 | int pad1; | ||
352 | snd_pcm_uframes_t hw_ptr; | ||
353 | struct timespec tstamp; | ||
354 | snd_pcm_state_t suspended_state; | ||
355 | }; | ||
356 | |||
357 | struct snd_pcm_mmap_control { | ||
358 | snd_pcm_uframes_t appl_ptr; | ||
359 | snd_pcm_uframes_t avail_min; | ||
360 | }; | ||
361 | |||
362 | #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) | ||
363 | #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) | ||
364 | #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) | ||
365 | |||
366 | struct snd_pcm_sync_ptr { | ||
367 | unsigned int flags; | ||
368 | union { | ||
369 | struct snd_pcm_mmap_status status; | ||
370 | unsigned char reserved[64]; | ||
371 | } s; | ||
372 | union { | ||
373 | struct snd_pcm_mmap_control control; | ||
374 | unsigned char reserved[64]; | ||
375 | } c; | ||
376 | }; | ||
377 | |||
378 | struct snd_xferi { | ||
379 | snd_pcm_sframes_t result; | ||
380 | void __user *buf; | ||
381 | snd_pcm_uframes_t frames; | ||
382 | }; | ||
383 | |||
384 | struct snd_xfern { | ||
385 | snd_pcm_sframes_t result; | ||
386 | void __user * __user *bufs; | ||
387 | snd_pcm_uframes_t frames; | ||
388 | }; | ||
389 | |||
390 | enum { | ||
391 | SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, | ||
392 | SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, | ||
393 | SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, | ||
394 | }; | ||
395 | |||
396 | #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) | ||
397 | #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) | ||
398 | #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) | ||
399 | #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) | ||
400 | #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) | ||
401 | #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) | ||
402 | #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) | ||
403 | #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) | ||
404 | #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) | ||
405 | #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) | ||
406 | #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) | ||
407 | #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) | ||
408 | #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) | ||
409 | #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) | ||
410 | #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) | ||
411 | #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) | ||
412 | #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) | ||
413 | #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) | ||
414 | #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) | ||
415 | #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) | ||
416 | #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) | ||
417 | #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) | ||
418 | #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) | ||
419 | #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) | ||
420 | #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) | ||
421 | #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) | ||
422 | #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) | ||
423 | #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) | ||
424 | #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) | ||
425 | |||
426 | #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) | ||
427 | |||
428 | enum { | ||
429 | SNDRV_RAWMIDI_STREAM_OUTPUT = 0, | ||
430 | SNDRV_RAWMIDI_STREAM_INPUT, | ||
431 | SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, | ||
432 | }; | ||
433 | |||
434 | #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 | ||
435 | #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 | ||
436 | #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 | ||
437 | |||
438 | struct snd_rawmidi_info { | ||
439 | unsigned int device; | ||
440 | unsigned int subdevice; | ||
441 | int stream; | ||
442 | int card; | ||
443 | unsigned int flags; | ||
444 | unsigned char id[64]; | ||
445 | unsigned char name[80]; | ||
446 | unsigned char subname[32]; | ||
447 | unsigned int subdevices_count; | ||
448 | unsigned int subdevices_avail; | ||
449 | unsigned char reserved[64]; | ||
450 | }; | ||
451 | |||
452 | struct snd_rawmidi_params { | ||
453 | int stream; | ||
454 | size_t buffer_size; | ||
455 | size_t avail_min; | ||
456 | unsigned int no_active_sensing: 1; | ||
457 | unsigned char reserved[16]; | ||
458 | }; | ||
459 | |||
460 | struct snd_rawmidi_status { | ||
461 | int stream; | ||
462 | struct timespec tstamp; | ||
463 | size_t avail; | ||
464 | size_t xruns; | ||
465 | unsigned char reserved[16]; | ||
466 | }; | ||
467 | |||
468 | #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) | ||
469 | #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) | ||
470 | #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) | ||
471 | #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) | ||
472 | #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) | ||
473 | #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) | ||
474 | |||
475 | #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) | ||
476 | |||
477 | enum { | ||
478 | SNDRV_TIMER_CLASS_NONE = -1, | ||
479 | SNDRV_TIMER_CLASS_SLAVE = 0, | ||
480 | SNDRV_TIMER_CLASS_GLOBAL, | ||
481 | SNDRV_TIMER_CLASS_CARD, | ||
482 | SNDRV_TIMER_CLASS_PCM, | ||
483 | SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, | ||
484 | }; | ||
485 | |||
486 | enum { | ||
487 | SNDRV_TIMER_SCLASS_NONE = 0, | ||
488 | SNDRV_TIMER_SCLASS_APPLICATION, | ||
489 | SNDRV_TIMER_SCLASS_SEQUENCER, | ||
490 | SNDRV_TIMER_SCLASS_OSS_SEQUENCER, | ||
491 | SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, | ||
492 | }; | ||
493 | |||
494 | #define SNDRV_TIMER_GLOBAL_SYSTEM 0 | ||
495 | #define SNDRV_TIMER_GLOBAL_RTC 1 | ||
496 | #define SNDRV_TIMER_GLOBAL_HPET 2 | ||
497 | #define SNDRV_TIMER_GLOBAL_HRTIMER 3 | ||
498 | |||
499 | #define SNDRV_TIMER_FLG_SLAVE (1<<0) | ||
500 | |||
501 | struct snd_timer_id { | ||
502 | int dev_class; | ||
503 | int dev_sclass; | ||
504 | int card; | ||
505 | int device; | ||
506 | int subdevice; | ||
507 | }; | ||
508 | |||
509 | struct snd_timer_ginfo { | ||
510 | struct snd_timer_id tid; | ||
511 | unsigned int flags; | ||
512 | int card; | ||
513 | unsigned char id[64]; | ||
514 | unsigned char name[80]; | ||
515 | unsigned long reserved0; | ||
516 | unsigned long resolution; | ||
517 | unsigned long resolution_min; | ||
518 | unsigned long resolution_max; | ||
519 | unsigned int clients; | ||
520 | unsigned char reserved[32]; | ||
521 | }; | ||
522 | |||
523 | struct snd_timer_gparams { | ||
524 | struct snd_timer_id tid; | ||
525 | unsigned long period_num; | ||
526 | unsigned long period_den; | ||
527 | unsigned char reserved[32]; | ||
528 | }; | ||
529 | |||
530 | struct snd_timer_gstatus { | ||
531 | struct snd_timer_id tid; | ||
532 | unsigned long resolution; | ||
533 | unsigned long resolution_num; | ||
534 | unsigned long resolution_den; | ||
535 | unsigned char reserved[32]; | ||
536 | }; | ||
537 | |||
538 | struct snd_timer_select { | ||
539 | struct snd_timer_id id; | ||
540 | unsigned char reserved[32]; | ||
541 | }; | ||
542 | |||
543 | struct snd_timer_info { | ||
544 | unsigned int flags; | ||
545 | int card; | ||
546 | unsigned char id[64]; | ||
547 | unsigned char name[80]; | ||
548 | unsigned long reserved0; | ||
549 | unsigned long resolution; | ||
550 | unsigned char reserved[64]; | ||
551 | }; | ||
552 | |||
553 | #define SNDRV_TIMER_PSFLG_AUTO (1<<0) | ||
554 | #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) | ||
555 | #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) | ||
556 | |||
557 | struct snd_timer_params { | ||
558 | unsigned int flags; | ||
559 | unsigned int ticks; | ||
560 | unsigned int queue_size; | ||
561 | unsigned int reserved0; | ||
562 | unsigned int filter; | ||
563 | unsigned char reserved[60]; | ||
564 | }; | ||
565 | |||
566 | struct snd_timer_status { | ||
567 | struct timespec tstamp; | ||
568 | unsigned int resolution; | ||
569 | unsigned int lost; | ||
570 | unsigned int overrun; | ||
571 | unsigned int queue; | ||
572 | unsigned char reserved[64]; | ||
573 | }; | ||
574 | |||
575 | #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) | ||
576 | #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) | ||
577 | #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) | ||
578 | #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) | ||
579 | #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) | ||
580 | #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) | ||
581 | #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) | ||
582 | #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) | ||
583 | #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) | ||
584 | #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) | ||
585 | |||
586 | #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) | ||
587 | #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) | ||
588 | #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) | ||
589 | #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) | ||
590 | |||
591 | struct snd_timer_read { | ||
592 | unsigned int resolution; | ||
593 | unsigned int ticks; | ||
594 | }; | ||
595 | |||
596 | enum { | ||
597 | SNDRV_TIMER_EVENT_RESOLUTION = 0, | ||
598 | SNDRV_TIMER_EVENT_TICK, | ||
599 | SNDRV_TIMER_EVENT_START, | ||
600 | SNDRV_TIMER_EVENT_STOP, | ||
601 | SNDRV_TIMER_EVENT_CONTINUE, | ||
602 | SNDRV_TIMER_EVENT_PAUSE, | ||
603 | SNDRV_TIMER_EVENT_EARLY, | ||
604 | SNDRV_TIMER_EVENT_SUSPEND, | ||
605 | SNDRV_TIMER_EVENT_RESUME, | ||
606 | |||
607 | SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, | ||
608 | SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, | ||
609 | SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, | ||
610 | SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, | ||
611 | SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, | ||
612 | SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, | ||
613 | }; | ||
614 | |||
615 | struct snd_timer_tread { | ||
616 | int event; | ||
617 | struct timespec tstamp; | ||
618 | unsigned int val; | ||
619 | }; | ||
620 | |||
621 | #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) | ||
622 | |||
623 | struct snd_ctl_card_info { | ||
624 | int card; | ||
625 | int pad; | ||
626 | unsigned char id[16]; | ||
627 | unsigned char driver[16]; | ||
628 | unsigned char name[32]; | ||
629 | unsigned char longname[80]; | ||
630 | unsigned char reserved_[16]; | ||
631 | unsigned char mixername[80]; | ||
632 | unsigned char components[128]; | ||
633 | }; | ||
634 | |||
635 | typedef int __bitwise snd_ctl_elem_type_t; | ||
636 | #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) | ||
637 | #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) | ||
638 | #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) | ||
639 | #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) | ||
640 | #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) | ||
641 | #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) | ||
642 | #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) | ||
643 | #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 | ||
644 | |||
645 | typedef int __bitwise snd_ctl_elem_iface_t; | ||
646 | #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) | ||
647 | #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) | ||
648 | #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) | ||
649 | #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) | ||
650 | #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) | ||
651 | #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) | ||
652 | #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) | ||
653 | #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER | ||
654 | |||
655 | #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) | ||
656 | #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) | ||
657 | #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) | ||
658 | #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) | ||
659 | #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) | ||
660 | #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) | ||
661 | #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) | ||
662 | #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) | ||
663 | #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) | ||
664 | #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) | ||
665 | #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) | ||
666 | #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) | ||
667 | #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) | ||
668 | #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) | ||
669 | |||
670 | #define SNDRV_CTL_POWER_D0 0x0000 | ||
671 | #define SNDRV_CTL_POWER_D1 0x0100 | ||
672 | #define SNDRV_CTL_POWER_D2 0x0200 | ||
673 | #define SNDRV_CTL_POWER_D3 0x0300 | ||
674 | #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) | ||
675 | #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) | ||
676 | |||
677 | struct snd_ctl_elem_id { | ||
678 | unsigned int numid; | ||
679 | snd_ctl_elem_iface_t iface; | ||
680 | unsigned int device; | ||
681 | unsigned int subdevice; | ||
682 | unsigned char name[44]; | ||
683 | unsigned int index; | ||
684 | }; | ||
685 | |||
686 | struct snd_ctl_elem_list { | ||
687 | unsigned int offset; | ||
688 | unsigned int space; | ||
689 | unsigned int used; | ||
690 | unsigned int count; | ||
691 | struct snd_ctl_elem_id __user *pids; | ||
692 | unsigned char reserved[50]; | ||
693 | }; | ||
694 | |||
695 | struct snd_ctl_elem_info { | ||
696 | struct snd_ctl_elem_id id; | ||
697 | snd_ctl_elem_type_t type; | ||
698 | unsigned int access; | ||
699 | unsigned int count; | ||
700 | __kernel_pid_t owner; | ||
701 | union { | ||
702 | struct { | ||
703 | long min; | ||
704 | long max; | ||
705 | long step; | ||
706 | } integer; | ||
707 | struct { | ||
708 | long long min; | ||
709 | long long max; | ||
710 | long long step; | ||
711 | } integer64; | ||
712 | struct { | ||
713 | unsigned int items; | ||
714 | unsigned int item; | ||
715 | char name[64]; | ||
716 | } enumerated; | ||
717 | unsigned char reserved[128]; | ||
718 | } value; | ||
719 | union { | ||
720 | unsigned short d[4]; | ||
721 | unsigned short *d_ptr; | ||
722 | } dimen; | ||
723 | unsigned char reserved[64-4*sizeof(unsigned short)]; | ||
724 | }; | ||
725 | |||
726 | struct snd_ctl_elem_value { | ||
727 | struct snd_ctl_elem_id id; | ||
728 | unsigned int indirect: 1; | ||
729 | union { | ||
730 | union { | ||
731 | long value[128]; | ||
732 | long *value_ptr; | ||
733 | } integer; | ||
734 | union { | ||
735 | long long value[64]; | ||
736 | long long *value_ptr; | ||
737 | } integer64; | ||
738 | union { | ||
739 | unsigned int item[128]; | ||
740 | unsigned int *item_ptr; | ||
741 | } enumerated; | ||
742 | union { | ||
743 | unsigned char data[512]; | ||
744 | unsigned char *data_ptr; | ||
745 | } bytes; | ||
746 | struct snd_aes_iec958 iec958; | ||
747 | } value; | ||
748 | struct timespec tstamp; | ||
749 | unsigned char reserved[128-sizeof(struct timespec)]; | ||
750 | }; | ||
751 | |||
752 | struct snd_ctl_tlv { | ||
753 | unsigned int numid; | ||
754 | unsigned int length; | ||
755 | unsigned int tlv[0]; | ||
756 | }; | ||
757 | |||
758 | #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) | ||
759 | #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) | ||
760 | #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) | ||
761 | #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) | ||
762 | #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) | ||
763 | #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) | ||
764 | #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) | ||
765 | #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) | ||
766 | #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) | ||
767 | #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) | ||
768 | #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) | ||
769 | #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) | ||
770 | #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) | ||
771 | #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) | ||
772 | #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) | ||
773 | #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) | ||
774 | #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) | ||
775 | #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) | ||
776 | #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) | ||
777 | #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) | ||
778 | #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) | ||
779 | #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) | ||
780 | #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) | ||
781 | #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) | ||
782 | #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) | ||
783 | |||
784 | enum sndrv_ctl_event_type { | ||
785 | SNDRV_CTL_EVENT_ELEM = 0, | ||
786 | SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, | ||
787 | }; | ||
788 | |||
789 | #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) | ||
790 | #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) | ||
791 | #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) | ||
792 | #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) | ||
793 | #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) | ||
794 | |||
795 | struct snd_ctl_event { | ||
796 | int type; | ||
797 | union { | ||
798 | struct { | ||
799 | unsigned int mask; | ||
800 | struct snd_ctl_elem_id id; | ||
801 | } elem; | ||
802 | unsigned char data8[60]; | ||
803 | } data; | ||
804 | }; | ||
805 | |||
806 | #define SNDRV_CTL_NAME_NONE "" | ||
807 | #define SNDRV_CTL_NAME_PLAYBACK "Playback " | ||
808 | #define SNDRV_CTL_NAME_CAPTURE "Capture " | ||
809 | |||
810 | #define SNDRV_CTL_NAME_IEC958_NONE "" | ||
811 | #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" | ||
812 | #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" | ||
813 | #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" | ||
814 | #define SNDRV_CTL_NAME_IEC958_MASK "Mask" | ||
815 | #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" | ||
816 | #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" | ||
817 | #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" | ||
818 | #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what | ||
819 | |||
820 | #endif | ||
diff --git a/firmware/target/hosted/ibasso/tinyalsa/include/tinyalsa/asoundlib.h b/firmware/target/hosted/ibasso/tinyalsa/include/tinyalsa/asoundlib.h new file mode 100644 index 0000000000..ba58bdcdfc --- /dev/null +++ b/firmware/target/hosted/ibasso/tinyalsa/include/tinyalsa/asoundlib.h | |||
@@ -0,0 +1,260 @@ | |||
1 | /* asoundlib.h | ||
2 | ** | ||
3 | ** Copyright 2011, The Android Open Source Project | ||
4 | ** | ||
5 | ** Redistribution and use in source and binary forms, with or without | ||
6 | ** modification, are permitted provided that the following conditions are met: | ||
7 | ** * Redistributions of source code must retain the above copyright | ||
8 | ** notice, this list of conditions and the following disclaimer. | ||
9 | ** * Redistributions in binary form must reproduce the above copyright | ||
10 | ** notice, this list of conditions and the following disclaimer in the | ||
11 | ** documentation and/or other materials provided with the distribution. | ||
12 | ** * Neither the name of The Android Open Source Project nor the names of | ||
13 | ** its contributors may be used to endorse or promote products derived | ||
14 | ** from this software without specific prior written permission. | ||
15 | ** | ||
16 | ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND | ||
17 | ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
18 | ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
19 | ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE | ||
20 | ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
21 | ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
22 | ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
23 | ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
24 | ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
25 | ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
26 | ** DAMAGE. | ||
27 | */ | ||
28 | |||
29 | #ifndef ASOUNDLIB_H | ||
30 | #define ASOUNDLIB_H | ||
31 | |||
32 | #include <sys/time.h> | ||
33 | #include <stddef.h> | ||
34 | |||
35 | #if defined(__cplusplus) | ||
36 | extern "C" { | ||
37 | #endif | ||
38 | |||
39 | /* | ||
40 | * PCM API | ||
41 | */ | ||
42 | |||
43 | struct pcm; | ||
44 | |||
45 | #define PCM_OUT 0x00000000 | ||
46 | #define PCM_IN 0x10000000 | ||
47 | #define PCM_MMAP 0x00000001 | ||
48 | #define PCM_NOIRQ 0x00000002 | ||
49 | #define PCM_NORESTART 0x00000004 /* PCM_NORESTART - when set, calls to | ||
50 | * pcm_write for a playback stream will not | ||
51 | * attempt to restart the stream in the case | ||
52 | * of an underflow, but will return -EPIPE | ||
53 | * instead. After the first -EPIPE error, the | ||
54 | * stream is considered to be stopped, and a | ||
55 | * second call to pcm_write will attempt to | ||
56 | * restart the stream. | ||
57 | */ | ||
58 | #define PCM_MONOTONIC 0x00000008 /* see pcm_get_htimestamp */ | ||
59 | |||
60 | /* PCM runtime states */ | ||
61 | #define PCM_STATE_RUNNING 3 | ||
62 | #define PCM_STATE_XRUN 4 | ||
63 | #define PCM_STATE_DRAINING 5 | ||
64 | #define PCM_STATE_SUSPENDED 7 | ||
65 | #define PCM_STATE_DISCONNECTED 8 | ||
66 | |||
67 | /* Bit formats */ | ||
68 | enum pcm_format { | ||
69 | PCM_FORMAT_S16_LE = 0, | ||
70 | PCM_FORMAT_S32_LE, | ||
71 | PCM_FORMAT_S8, | ||
72 | PCM_FORMAT_S24_LE, | ||
73 | |||
74 | PCM_FORMAT_MAX, | ||
75 | }; | ||
76 | |||
77 | /* Bitmask has 256 bits (32 bytes) in asound.h */ | ||
78 | struct pcm_mask { | ||
79 | unsigned int bits[32 / sizeof(unsigned int)]; | ||
80 | }; | ||
81 | |||
82 | /* Configuration for a stream */ | ||
83 | struct pcm_config { | ||
84 | unsigned int channels; | ||
85 | unsigned int rate; | ||
86 | unsigned int period_size; | ||
87 | unsigned int period_count; | ||
88 | enum pcm_format format; | ||
89 | |||
90 | /* Values to use for the ALSA start, stop and silence thresholds. Setting | ||
91 | * any one of these values to 0 will cause the default tinyalsa values to be | ||
92 | * used instead. Tinyalsa defaults are as follows. | ||
93 | * | ||
94 | * start_threshold : period_count * period_size | ||
95 | * stop_threshold : period_count * period_size | ||
96 | * silence_threshold : 0 | ||
97 | */ | ||
98 | unsigned int start_threshold; | ||
99 | unsigned int stop_threshold; | ||
100 | unsigned int silence_threshold; | ||
101 | }; | ||
102 | |||
103 | /* PCM parameters */ | ||
104 | enum pcm_param | ||
105 | { | ||
106 | /* mask parameters */ | ||
107 | PCM_PARAM_ACCESS, | ||
108 | PCM_PARAM_FORMAT, | ||
109 | PCM_PARAM_SUBFORMAT, | ||
110 | /* interval parameters */ | ||
111 | PCM_PARAM_SAMPLE_BITS, | ||
112 | PCM_PARAM_FRAME_BITS, | ||
113 | PCM_PARAM_CHANNELS, | ||
114 | PCM_PARAM_RATE, | ||
115 | PCM_PARAM_PERIOD_TIME, | ||
116 | PCM_PARAM_PERIOD_SIZE, | ||
117 | PCM_PARAM_PERIOD_BYTES, | ||
118 | PCM_PARAM_PERIODS, | ||
119 | PCM_PARAM_BUFFER_TIME, | ||
120 | PCM_PARAM_BUFFER_SIZE, | ||
121 | PCM_PARAM_BUFFER_BYTES, | ||
122 | PCM_PARAM_TICK_TIME, | ||
123 | }; | ||
124 | |||
125 | /* Mixer control types */ | ||
126 | enum mixer_ctl_type { | ||
127 | MIXER_CTL_TYPE_BOOL, | ||
128 | MIXER_CTL_TYPE_INT, | ||
129 | MIXER_CTL_TYPE_ENUM, | ||
130 | MIXER_CTL_TYPE_BYTE, | ||
131 | MIXER_CTL_TYPE_IEC958, | ||
132 | MIXER_CTL_TYPE_INT64, | ||
133 | MIXER_CTL_TYPE_UNKNOWN, | ||
134 | |||
135 | MIXER_CTL_TYPE_MAX, | ||
136 | }; | ||
137 | |||
138 | /* Open and close a stream */ | ||
139 | struct pcm *pcm_open(unsigned int card, unsigned int device, | ||
140 | unsigned int flags, struct pcm_config *config); | ||
141 | int pcm_close(struct pcm *pcm); | ||
142 | int pcm_is_ready(struct pcm *pcm); | ||
143 | |||
144 | /* Obtain the parameters for a PCM */ | ||
145 | struct pcm_params *pcm_params_get(unsigned int card, unsigned int device, | ||
146 | unsigned int flags); | ||
147 | void pcm_params_free(struct pcm_params *pcm_params); | ||
148 | |||
149 | struct pcm_mask *pcm_params_get_mask(struct pcm_params *pcm_params, | ||
150 | enum pcm_param param); | ||
151 | unsigned int pcm_params_get_min(struct pcm_params *pcm_params, | ||
152 | enum pcm_param param); | ||
153 | unsigned int pcm_params_get_max(struct pcm_params *pcm_params, | ||
154 | enum pcm_param param); | ||
155 | |||
156 | /* Returns a human readable reason for the last error */ | ||
157 | const char *pcm_get_error(struct pcm *pcm); | ||
158 | |||
159 | /* Returns the sample size in bits for a PCM format. | ||
160 | * As with ALSA formats, this is the storage size for the format, whereas the | ||
161 | * format represents the number of significant bits. For example, | ||
162 | * PCM_FORMAT_S24_LE uses 32 bits of storage. | ||
163 | */ | ||
164 | unsigned int pcm_format_to_bits(enum pcm_format format); | ||
165 | |||
166 | /* Returns the buffer size (int frames) that should be used for pcm_write. */ | ||
167 | unsigned int pcm_get_buffer_size(struct pcm *pcm); | ||
168 | unsigned int pcm_frames_to_bytes(struct pcm *pcm, unsigned int frames); | ||
169 | unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes); | ||
170 | |||
171 | /* Returns available frames in pcm buffer and corresponding time stamp. | ||
172 | * The clock is CLOCK_MONOTONIC if flag PCM_MONOTONIC was specified in pcm_open, | ||
173 | * otherwise the clock is CLOCK_REALTIME. | ||
174 | * For an input stream, frames available are frames ready for the | ||
175 | * application to read. | ||
176 | * For an output stream, frames available are the number of empty frames available | ||
177 | * for the application to write. | ||
178 | */ | ||
179 | int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail, | ||
180 | struct timespec *tstamp); | ||
181 | |||
182 | /* Write data to the fifo. | ||
183 | * Will start playback on the first write or on a write that | ||
184 | * occurs after a fifo underrun. | ||
185 | */ | ||
186 | int pcm_write(struct pcm *pcm, const void *data, unsigned int count); | ||
187 | int pcm_read(struct pcm *pcm, void *data, unsigned int count); | ||
188 | |||
189 | /* | ||
190 | * mmap() support. | ||
191 | */ | ||
192 | int pcm_mmap_write(struct pcm *pcm, const void *data, unsigned int count); | ||
193 | int pcm_mmap_read(struct pcm *pcm, void *data, unsigned int count); | ||
194 | int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset, | ||
195 | unsigned int *frames); | ||
196 | int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames); | ||
197 | |||
198 | /* Prepare the PCM substream to be triggerable */ | ||
199 | int pcm_prepare(struct pcm *pcm); | ||
200 | /* Start and stop a PCM channel that doesn't transfer data */ | ||
201 | int pcm_start(struct pcm *pcm); | ||
202 | int pcm_stop(struct pcm *pcm); | ||
203 | |||
204 | /* Interrupt driven API */ | ||
205 | int pcm_wait(struct pcm *pcm, int timeout); | ||
206 | |||
207 | |||
208 | /* | ||
209 | * MIXER API | ||
210 | */ | ||
211 | |||
212 | struct mixer; | ||
213 | struct mixer_ctl; | ||
214 | |||
215 | /* Open and close a mixer */ | ||
216 | struct mixer *mixer_open(unsigned int card); | ||
217 | void mixer_close(struct mixer *mixer); | ||
218 | |||
219 | /* Get info about a mixer */ | ||
220 | const char *mixer_get_name(struct mixer *mixer); | ||
221 | |||
222 | /* Obtain mixer controls */ | ||
223 | unsigned int mixer_get_num_ctls(struct mixer *mixer); | ||
224 | struct mixer_ctl *mixer_get_ctl(struct mixer *mixer, unsigned int id); | ||
225 | struct mixer_ctl *mixer_get_ctl_by_name(struct mixer *mixer, const char *name); | ||
226 | |||
227 | /* Get info about mixer controls */ | ||
228 | const char *mixer_ctl_get_name(struct mixer_ctl *ctl); | ||
229 | enum mixer_ctl_type mixer_ctl_get_type(struct mixer_ctl *ctl); | ||
230 | const char *mixer_ctl_get_type_string(struct mixer_ctl *ctl); | ||
231 | unsigned int mixer_ctl_get_num_values(struct mixer_ctl *ctl); | ||
232 | unsigned int mixer_ctl_get_num_enums(struct mixer_ctl *ctl); | ||
233 | const char *mixer_ctl_get_enum_string(struct mixer_ctl *ctl, | ||
234 | unsigned int enum_id); | ||
235 | |||
236 | /* Some sound cards update their controls due to external events, | ||
237 | * such as HDMI EDID byte data changing when an HDMI cable is | ||
238 | * connected. This API allows the count of elements to be updated. | ||
239 | */ | ||
240 | void mixer_ctl_update(struct mixer_ctl *ctl); | ||
241 | |||
242 | /* Set and get mixer controls */ | ||
243 | int mixer_ctl_get_percent(struct mixer_ctl *ctl, unsigned int id); | ||
244 | int mixer_ctl_set_percent(struct mixer_ctl *ctl, unsigned int id, int percent); | ||
245 | |||
246 | int mixer_ctl_get_value(struct mixer_ctl *ctl, unsigned int id); | ||
247 | int mixer_ctl_get_array(struct mixer_ctl *ctl, void *array, size_t count); | ||
248 | int mixer_ctl_set_value(struct mixer_ctl *ctl, unsigned int id, int value); | ||
249 | int mixer_ctl_set_array(struct mixer_ctl *ctl, const void *array, size_t count); | ||
250 | int mixer_ctl_set_enum_by_string(struct mixer_ctl *ctl, const char *string); | ||
251 | |||
252 | /* Determe range of integer mixer controls */ | ||
253 | int mixer_ctl_get_range_min(struct mixer_ctl *ctl); | ||
254 | int mixer_ctl_get_range_max(struct mixer_ctl *ctl); | ||
255 | |||
256 | #if defined(__cplusplus) | ||
257 | } /* extern "C" */ | ||
258 | #endif | ||
259 | |||
260 | #endif | ||
diff --git a/firmware/target/hosted/ibasso/tinyalsa/mixer.c b/firmware/target/hosted/ibasso/tinyalsa/mixer.c new file mode 100644 index 0000000000..24e94f4f1d --- /dev/null +++ b/firmware/target/hosted/ibasso/tinyalsa/mixer.c | |||
@@ -0,0 +1,502 @@ | |||
1 | /* mixer.c | ||
2 | ** | ||
3 | ** Copyright 2011, The Android Open Source Project | ||
4 | ** | ||
5 | ** Redistribution and use in source and binary forms, with or without | ||
6 | ** modification, are permitted provided that the following conditions are met: | ||
7 | ** * Redistributions of source code must retain the above copyright | ||
8 | ** notice, this list of conditions and the following disclaimer. | ||
9 | ** * Redistributions in binary form must reproduce the above copyright | ||
10 | ** notice, this list of conditions and the following disclaimer in the | ||
11 | ** documentation and/or other materials provided with the distribution. | ||
12 | ** * Neither the name of The Android Open Source Project nor the names of | ||
13 | ** its contributors may be used to endorse or promote products derived | ||
14 | ** from this software without specific prior written permission. | ||
15 | ** | ||
16 | ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND | ||
17 | ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
18 | ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
19 | ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE | ||
20 | ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
21 | ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
22 | ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
23 | ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
24 | ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
25 | ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
26 | ** DAMAGE. | ||
27 | */ | ||
28 | |||
29 | #include <stdio.h> | ||
30 | #include <stdlib.h> | ||
31 | #include <string.h> | ||
32 | #include <unistd.h> | ||
33 | #include <fcntl.h> | ||
34 | #include <errno.h> | ||
35 | #include <ctype.h> | ||
36 | |||
37 | #include <sys/ioctl.h> | ||
38 | |||
39 | #include <linux/ioctl.h> | ||
40 | #define __force | ||
41 | #define __bitwise | ||
42 | #define __user | ||
43 | #include <sound/asound.h> | ||
44 | |||
45 | #include <tinyalsa/asoundlib.h> | ||
46 | |||
47 | struct mixer_ctl { | ||
48 | struct mixer *mixer; | ||
49 | struct snd_ctl_elem_info *info; | ||
50 | char **ename; | ||
51 | }; | ||
52 | |||
53 | struct mixer { | ||
54 | int fd; | ||
55 | struct snd_ctl_card_info card_info; | ||
56 | struct snd_ctl_elem_info *elem_info; | ||
57 | struct mixer_ctl *ctl; | ||
58 | unsigned int count; | ||
59 | }; | ||
60 | |||
61 | void mixer_close(struct mixer *mixer) | ||
62 | { | ||
63 | unsigned int n,m; | ||
64 | |||
65 | if (!mixer) | ||
66 | return; | ||
67 | |||
68 | if (mixer->fd >= 0) | ||
69 | close(mixer->fd); | ||
70 | |||
71 | if (mixer->ctl) { | ||
72 | for (n = 0; n < mixer->count; n++) { | ||
73 | if (mixer->ctl[n].ename) { | ||
74 | unsigned int max = mixer->ctl[n].info->value.enumerated.items; | ||
75 | for (m = 0; m < max; m++) | ||
76 | free(mixer->ctl[n].ename[m]); | ||
77 | free(mixer->ctl[n].ename); | ||
78 | } | ||
79 | } | ||
80 | free(mixer->ctl); | ||
81 | } | ||
82 | |||
83 | if (mixer->elem_info) | ||
84 | free(mixer->elem_info); | ||
85 | |||
86 | free(mixer); | ||
87 | |||
88 | /* TODO: verify frees */ | ||
89 | } | ||
90 | |||
91 | struct mixer *mixer_open(unsigned int card) | ||
92 | { | ||
93 | struct snd_ctl_elem_list elist; | ||
94 | struct snd_ctl_elem_info tmp; | ||
95 | struct snd_ctl_elem_id *eid = NULL; | ||
96 | struct mixer *mixer = NULL; | ||
97 | unsigned int n, m; | ||
98 | int fd; | ||
99 | char fn[256]; | ||
100 | |||
101 | snprintf(fn, sizeof(fn), "/dev/snd/controlC%u", card); | ||
102 | fd = open(fn, O_RDWR); | ||
103 | if (fd < 0) | ||
104 | return 0; | ||
105 | |||
106 | memset(&elist, 0, sizeof(elist)); | ||
107 | if (ioctl(fd, SNDRV_CTL_IOCTL_ELEM_LIST, &elist) < 0) | ||
108 | goto fail; | ||
109 | |||
110 | mixer = calloc(1, sizeof(*mixer)); | ||
111 | if (!mixer) | ||
112 | goto fail; | ||
113 | |||
114 | mixer->ctl = calloc(elist.count, sizeof(struct mixer_ctl)); | ||
115 | mixer->elem_info = calloc(elist.count, sizeof(struct snd_ctl_elem_info)); | ||
116 | if (!mixer->ctl || !mixer->elem_info) | ||
117 | goto fail; | ||
118 | |||
119 | if (ioctl(fd, SNDRV_CTL_IOCTL_CARD_INFO, &mixer->card_info) < 0) | ||
120 | goto fail; | ||
121 | |||
122 | eid = calloc(elist.count, sizeof(struct snd_ctl_elem_id)); | ||
123 | if (!eid) | ||
124 | goto fail; | ||
125 | |||
126 | mixer->count = elist.count; | ||
127 | mixer->fd = fd; | ||
128 | elist.space = mixer->count; | ||
129 | elist.pids = eid; | ||
130 | if (ioctl(fd, SNDRV_CTL_IOCTL_ELEM_LIST, &elist) < 0) | ||
131 | goto fail; | ||
132 | |||
133 | for (n = 0; n < mixer->count; n++) { | ||
134 | struct snd_ctl_elem_info *ei = mixer->elem_info + n; | ||
135 | ei->id.numid = eid[n].numid; | ||
136 | if (ioctl(fd, SNDRV_CTL_IOCTL_ELEM_INFO, ei) < 0) | ||
137 | goto fail; | ||
138 | mixer->ctl[n].info = ei; | ||
139 | mixer->ctl[n].mixer = mixer; | ||
140 | if (ei->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) { | ||
141 | char **enames = calloc(ei->value.enumerated.items, sizeof(char*)); | ||
142 | if (!enames) | ||
143 | goto fail; | ||
144 | mixer->ctl[n].ename = enames; | ||
145 | for (m = 0; m < ei->value.enumerated.items; m++) { | ||
146 | memset(&tmp, 0, sizeof(tmp)); | ||
147 | tmp.id.numid = ei->id.numid; | ||
148 | tmp.value.enumerated.item = m; | ||
149 | if (ioctl(fd, SNDRV_CTL_IOCTL_ELEM_INFO, &tmp) < 0) | ||
150 | goto fail; | ||
151 | enames[m] = strdup(tmp.value.enumerated.name); | ||
152 | if (!enames[m]) | ||
153 | goto fail; | ||
154 | } | ||
155 | } | ||
156 | } | ||
157 | |||
158 | free(eid); | ||
159 | return mixer; | ||
160 | |||
161 | fail: | ||
162 | /* TODO: verify frees in failure case */ | ||
163 | if (eid) | ||
164 | free(eid); | ||
165 | if (mixer) | ||
166 | mixer_close(mixer); | ||
167 | else if (fd >= 0) | ||
168 | close(fd); | ||
169 | return 0; | ||
170 | } | ||
171 | |||
172 | const char *mixer_get_name(struct mixer *mixer) | ||
173 | { | ||
174 | return (const char *)mixer->card_info.name; | ||
175 | } | ||
176 | |||
177 | unsigned int mixer_get_num_ctls(struct mixer *mixer) | ||
178 | { | ||
179 | if (!mixer) | ||
180 | return 0; | ||
181 | |||
182 | return mixer->count; | ||
183 | } | ||
184 | |||
185 | struct mixer_ctl *mixer_get_ctl(struct mixer *mixer, unsigned int id) | ||
186 | { | ||
187 | if (mixer && (id < mixer->count)) | ||
188 | return mixer->ctl + id; | ||
189 | |||
190 | return NULL; | ||
191 | } | ||
192 | |||
193 | struct mixer_ctl *mixer_get_ctl_by_name(struct mixer *mixer, const char *name) | ||
194 | { | ||
195 | unsigned int n; | ||
196 | |||
197 | if (!mixer) | ||
198 | return NULL; | ||
199 | |||
200 | for (n = 0; n < mixer->count; n++) | ||
201 | if (!strcmp(name, (char*) mixer->elem_info[n].id.name)) | ||
202 | return mixer->ctl + n; | ||
203 | |||
204 | return NULL; | ||
205 | } | ||
206 | |||
207 | void mixer_ctl_update(struct mixer_ctl *ctl) | ||
208 | { | ||
209 | ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_INFO, ctl->info); | ||
210 | } | ||
211 | |||
212 | const char *mixer_ctl_get_name(struct mixer_ctl *ctl) | ||
213 | { | ||
214 | if (!ctl) | ||
215 | return NULL; | ||
216 | |||
217 | return (const char *)ctl->info->id.name; | ||
218 | } | ||
219 | |||
220 | enum mixer_ctl_type mixer_ctl_get_type(struct mixer_ctl *ctl) | ||
221 | { | ||
222 | if (!ctl) | ||
223 | return MIXER_CTL_TYPE_UNKNOWN; | ||
224 | |||
225 | switch (ctl->info->type) { | ||
226 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: return MIXER_CTL_TYPE_BOOL; | ||
227 | case SNDRV_CTL_ELEM_TYPE_INTEGER: return MIXER_CTL_TYPE_INT; | ||
228 | case SNDRV_CTL_ELEM_TYPE_ENUMERATED: return MIXER_CTL_TYPE_ENUM; | ||
229 | case SNDRV_CTL_ELEM_TYPE_BYTES: return MIXER_CTL_TYPE_BYTE; | ||
230 | case SNDRV_CTL_ELEM_TYPE_IEC958: return MIXER_CTL_TYPE_IEC958; | ||
231 | case SNDRV_CTL_ELEM_TYPE_INTEGER64: return MIXER_CTL_TYPE_INT64; | ||
232 | default: return MIXER_CTL_TYPE_UNKNOWN; | ||
233 | }; | ||
234 | } | ||
235 | |||
236 | const char *mixer_ctl_get_type_string(struct mixer_ctl *ctl) | ||
237 | { | ||
238 | if (!ctl) | ||
239 | return ""; | ||
240 | |||
241 | switch (ctl->info->type) { | ||
242 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: return "BOOL"; | ||
243 | case SNDRV_CTL_ELEM_TYPE_INTEGER: return "INT"; | ||
244 | case SNDRV_CTL_ELEM_TYPE_ENUMERATED: return "ENUM"; | ||
245 | case SNDRV_CTL_ELEM_TYPE_BYTES: return "BYTE"; | ||
246 | case SNDRV_CTL_ELEM_TYPE_IEC958: return "IEC958"; | ||
247 | case SNDRV_CTL_ELEM_TYPE_INTEGER64: return "INT64"; | ||
248 | default: return "Unknown"; | ||
249 | }; | ||
250 | } | ||
251 | |||
252 | unsigned int mixer_ctl_get_num_values(struct mixer_ctl *ctl) | ||
253 | { | ||
254 | if (!ctl) | ||
255 | return 0; | ||
256 | |||
257 | return ctl->info->count; | ||
258 | } | ||
259 | |||
260 | static int percent_to_int(struct snd_ctl_elem_info *ei, int percent) | ||
261 | { | ||
262 | if ((percent > 100) || (percent < 0)) { | ||
263 | return -EINVAL; | ||
264 | } | ||
265 | |||
266 | int range = (ei->value.integer.max - ei->value.integer.min); | ||
267 | |||
268 | return ei->value.integer.min + (range * percent) / 100; | ||
269 | } | ||
270 | |||
271 | static int int_to_percent(struct snd_ctl_elem_info *ei, int value) | ||
272 | { | ||
273 | int range = (ei->value.integer.max - ei->value.integer.min); | ||
274 | |||
275 | if (range == 0) | ||
276 | return 0; | ||
277 | |||
278 | return ((value - ei->value.integer.min) / range) * 100; | ||
279 | } | ||
280 | |||
281 | int mixer_ctl_get_percent(struct mixer_ctl *ctl, unsigned int id) | ||
282 | { | ||
283 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_INTEGER)) | ||
284 | return -EINVAL; | ||
285 | |||
286 | return int_to_percent(ctl->info, mixer_ctl_get_value(ctl, id)); | ||
287 | } | ||
288 | |||
289 | int mixer_ctl_set_percent(struct mixer_ctl *ctl, unsigned int id, int percent) | ||
290 | { | ||
291 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_INTEGER)) | ||
292 | return -EINVAL; | ||
293 | |||
294 | return mixer_ctl_set_value(ctl, id, percent_to_int(ctl->info, percent)); | ||
295 | } | ||
296 | |||
297 | int mixer_ctl_get_value(struct mixer_ctl *ctl, unsigned int id) | ||
298 | { | ||
299 | struct snd_ctl_elem_value ev; | ||
300 | int ret; | ||
301 | |||
302 | if (!ctl || (id >= ctl->info->count)) | ||
303 | return -EINVAL; | ||
304 | |||
305 | memset(&ev, 0, sizeof(ev)); | ||
306 | ev.id.numid = ctl->info->id.numid; | ||
307 | ret = ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_READ, &ev); | ||
308 | if (ret < 0) | ||
309 | return ret; | ||
310 | |||
311 | switch (ctl->info->type) { | ||
312 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: | ||
313 | return !!ev.value.integer.value[id]; | ||
314 | |||
315 | case SNDRV_CTL_ELEM_TYPE_INTEGER: | ||
316 | return ev.value.integer.value[id]; | ||
317 | |||
318 | case SNDRV_CTL_ELEM_TYPE_ENUMERATED: | ||
319 | return ev.value.enumerated.item[id]; | ||
320 | |||
321 | case SNDRV_CTL_ELEM_TYPE_BYTES: | ||
322 | return ev.value.bytes.data[id]; | ||
323 | |||
324 | default: | ||
325 | return -EINVAL; | ||
326 | } | ||
327 | |||
328 | return 0; | ||
329 | } | ||
330 | |||
331 | int mixer_ctl_get_array(struct mixer_ctl *ctl, void *array, size_t count) | ||
332 | { | ||
333 | struct snd_ctl_elem_value ev; | ||
334 | int ret; | ||
335 | size_t size; | ||
336 | void *source; | ||
337 | |||
338 | if (!ctl || (count > ctl->info->count) || !count || !array) | ||
339 | return -EINVAL; | ||
340 | |||
341 | memset(&ev, 0, sizeof(ev)); | ||
342 | ev.id.numid = ctl->info->id.numid; | ||
343 | |||
344 | ret = ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_READ, &ev); | ||
345 | if (ret < 0) | ||
346 | return ret; | ||
347 | |||
348 | switch (ctl->info->type) { | ||
349 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: | ||
350 | case SNDRV_CTL_ELEM_TYPE_INTEGER: | ||
351 | size = sizeof(ev.value.integer.value[0]); | ||
352 | source = ev.value.integer.value; | ||
353 | break; | ||
354 | |||
355 | case SNDRV_CTL_ELEM_TYPE_BYTES: | ||
356 | size = sizeof(ev.value.bytes.data[0]); | ||
357 | source = ev.value.bytes.data; | ||
358 | break; | ||
359 | |||
360 | default: | ||
361 | return -EINVAL; | ||
362 | } | ||
363 | |||
364 | memcpy(array, source, size * count); | ||
365 | |||
366 | return 0; | ||
367 | } | ||
368 | |||
369 | int mixer_ctl_set_value(struct mixer_ctl *ctl, unsigned int id, int value) | ||
370 | { | ||
371 | struct snd_ctl_elem_value ev; | ||
372 | int ret; | ||
373 | |||
374 | if (!ctl || (id >= ctl->info->count)) | ||
375 | return -EINVAL; | ||
376 | |||
377 | memset(&ev, 0, sizeof(ev)); | ||
378 | ev.id.numid = ctl->info->id.numid; | ||
379 | ret = ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_READ, &ev); | ||
380 | if (ret < 0) | ||
381 | return ret; | ||
382 | |||
383 | switch (ctl->info->type) { | ||
384 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: | ||
385 | ev.value.integer.value[id] = !!value; | ||
386 | break; | ||
387 | |||
388 | case SNDRV_CTL_ELEM_TYPE_INTEGER: | ||
389 | if ((value < mixer_ctl_get_range_min(ctl)) || | ||
390 | (value > mixer_ctl_get_range_max(ctl))) { | ||
391 | return -EINVAL; | ||
392 | } | ||
393 | |||
394 | ev.value.integer.value[id] = value; | ||
395 | break; | ||
396 | |||
397 | case SNDRV_CTL_ELEM_TYPE_ENUMERATED: | ||
398 | ev.value.enumerated.item[id] = value; | ||
399 | break; | ||
400 | |||
401 | case SNDRV_CTL_ELEM_TYPE_BYTES: | ||
402 | ev.value.bytes.data[id] = value; | ||
403 | break; | ||
404 | |||
405 | default: | ||
406 | return -EINVAL; | ||
407 | } | ||
408 | |||
409 | return ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_WRITE, &ev); | ||
410 | } | ||
411 | |||
412 | int mixer_ctl_set_array(struct mixer_ctl *ctl, const void *array, size_t count) | ||
413 | { | ||
414 | struct snd_ctl_elem_value ev; | ||
415 | size_t size; | ||
416 | void *dest; | ||
417 | |||
418 | if (!ctl || (count > ctl->info->count) || !count || !array) | ||
419 | return -EINVAL; | ||
420 | |||
421 | memset(&ev, 0, sizeof(ev)); | ||
422 | ev.id.numid = ctl->info->id.numid; | ||
423 | |||
424 | switch (ctl->info->type) { | ||
425 | case SNDRV_CTL_ELEM_TYPE_BOOLEAN: | ||
426 | case SNDRV_CTL_ELEM_TYPE_INTEGER: | ||
427 | size = sizeof(ev.value.integer.value[0]); | ||
428 | dest = ev.value.integer.value; | ||
429 | break; | ||
430 | |||
431 | case SNDRV_CTL_ELEM_TYPE_BYTES: | ||
432 | size = sizeof(ev.value.bytes.data[0]); | ||
433 | dest = ev.value.bytes.data; | ||
434 | break; | ||
435 | |||
436 | default: | ||
437 | return -EINVAL; | ||
438 | } | ||
439 | |||
440 | memcpy(dest, array, size * count); | ||
441 | |||
442 | return ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_WRITE, &ev); | ||
443 | } | ||
444 | |||
445 | int mixer_ctl_get_range_min(struct mixer_ctl *ctl) | ||
446 | { | ||
447 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_INTEGER)) | ||
448 | return -EINVAL; | ||
449 | |||
450 | return ctl->info->value.integer.min; | ||
451 | } | ||
452 | |||
453 | int mixer_ctl_get_range_max(struct mixer_ctl *ctl) | ||
454 | { | ||
455 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_INTEGER)) | ||
456 | return -EINVAL; | ||
457 | |||
458 | return ctl->info->value.integer.max; | ||
459 | } | ||
460 | |||
461 | unsigned int mixer_ctl_get_num_enums(struct mixer_ctl *ctl) | ||
462 | { | ||
463 | if (!ctl) | ||
464 | return 0; | ||
465 | |||
466 | return ctl->info->value.enumerated.items; | ||
467 | } | ||
468 | |||
469 | const char *mixer_ctl_get_enum_string(struct mixer_ctl *ctl, | ||
470 | unsigned int enum_id) | ||
471 | { | ||
472 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_ENUMERATED) || | ||
473 | (enum_id >= ctl->info->value.enumerated.items)) | ||
474 | return NULL; | ||
475 | |||
476 | return (const char *)ctl->ename[enum_id]; | ||
477 | } | ||
478 | |||
479 | int mixer_ctl_set_enum_by_string(struct mixer_ctl *ctl, const char *string) | ||
480 | { | ||
481 | unsigned int i, num_enums; | ||
482 | struct snd_ctl_elem_value ev; | ||
483 | int ret; | ||
484 | |||
485 | if (!ctl || (ctl->info->type != SNDRV_CTL_ELEM_TYPE_ENUMERATED)) | ||
486 | return -EINVAL; | ||
487 | |||
488 | num_enums = ctl->info->value.enumerated.items; | ||
489 | for (i = 0; i < num_enums; i++) { | ||
490 | if (!strcmp(string, ctl->ename[i])) { | ||
491 | memset(&ev, 0, sizeof(ev)); | ||
492 | ev.value.enumerated.item[0] = i; | ||
493 | ev.id.numid = ctl->info->id.numid; | ||
494 | ret = ioctl(ctl->mixer->fd, SNDRV_CTL_IOCTL_ELEM_WRITE, &ev); | ||
495 | if (ret < 0) | ||
496 | return ret; | ||
497 | return 0; | ||
498 | } | ||
499 | } | ||
500 | |||
501 | return -EINVAL; | ||
502 | } | ||
diff --git a/firmware/target/hosted/ibasso/tinyalsa/pcm.c b/firmware/target/hosted/ibasso/tinyalsa/pcm.c new file mode 100644 index 0000000000..0d2f0adf08 --- /dev/null +++ b/firmware/target/hosted/ibasso/tinyalsa/pcm.c | |||
@@ -0,0 +1,1049 @@ | |||
1 | /* pcm.c | ||
2 | ** | ||
3 | ** Copyright 2011, The Android Open Source Project | ||
4 | ** | ||
5 | ** Redistribution and use in source and binary forms, with or without | ||
6 | ** modification, are permitted provided that the following conditions are met: | ||
7 | ** * Redistributions of source code must retain the above copyright | ||
8 | ** notice, this list of conditions and the following disclaimer. | ||
9 | ** * Redistributions in binary form must reproduce the above copyright | ||
10 | ** notice, this list of conditions and the following disclaimer in the | ||
11 | ** documentation and/or other materials provided with the distribution. | ||
12 | ** * Neither the name of The Android Open Source Project nor the names of | ||
13 | ** its contributors may be used to endorse or promote products derived | ||
14 | ** from this software without specific prior written permission. | ||
15 | ** | ||
16 | ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND | ||
17 | ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
18 | ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
19 | ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE | ||
20 | ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
21 | ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
22 | ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
23 | ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
24 | ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
25 | ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
26 | ** DAMAGE. | ||
27 | */ | ||
28 | |||
29 | #include <stdio.h> | ||
30 | #include <stdlib.h> | ||
31 | #include <fcntl.h> | ||
32 | #include <stdarg.h> | ||
33 | #include <string.h> | ||
34 | #include <errno.h> | ||
35 | #include <unistd.h> | ||
36 | #include <poll.h> | ||
37 | |||
38 | #include <sys/ioctl.h> | ||
39 | #include <sys/mman.h> | ||
40 | #include <sys/time.h> | ||
41 | #include <limits.h> | ||
42 | |||
43 | #include <linux/ioctl.h> | ||
44 | #define __force | ||
45 | #define __bitwise | ||
46 | #define __user | ||
47 | #include <sound/asound.h> | ||
48 | |||
49 | #include <tinyalsa/asoundlib.h> | ||
50 | |||
51 | #define PARAM_MAX SNDRV_PCM_HW_PARAM_LAST_INTERVAL | ||
52 | #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) | ||
53 | |||
54 | static inline int param_is_mask(int p) | ||
55 | { | ||
56 | return (p >= SNDRV_PCM_HW_PARAM_FIRST_MASK) && | ||
57 | (p <= SNDRV_PCM_HW_PARAM_LAST_MASK); | ||
58 | } | ||
59 | |||
60 | static inline int param_is_interval(int p) | ||
61 | { | ||
62 | return (p >= SNDRV_PCM_HW_PARAM_FIRST_INTERVAL) && | ||
63 | (p <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL); | ||
64 | } | ||
65 | |||
66 | static inline struct snd_interval *param_to_interval(struct snd_pcm_hw_params *p, int n) | ||
67 | { | ||
68 | return &(p->intervals[n - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]); | ||
69 | } | ||
70 | |||
71 | static inline struct snd_mask *param_to_mask(struct snd_pcm_hw_params *p, int n) | ||
72 | { | ||
73 | return &(p->masks[n - SNDRV_PCM_HW_PARAM_FIRST_MASK]); | ||
74 | } | ||
75 | |||
76 | static void param_set_mask(struct snd_pcm_hw_params *p, int n, unsigned int bit) | ||
77 | { | ||
78 | if (bit >= SNDRV_MASK_MAX) | ||
79 | return; | ||
80 | if (param_is_mask(n)) { | ||
81 | struct snd_mask *m = param_to_mask(p, n); | ||
82 | m->bits[0] = 0; | ||
83 | m->bits[1] = 0; | ||
84 | m->bits[bit >> 5] |= (1 << (bit & 31)); | ||
85 | } | ||
86 | } | ||
87 | |||
88 | static void param_set_min(struct snd_pcm_hw_params *p, int n, unsigned int val) | ||
89 | { | ||
90 | if (param_is_interval(n)) { | ||
91 | struct snd_interval *i = param_to_interval(p, n); | ||
92 | i->min = val; | ||
93 | } | ||
94 | } | ||
95 | |||
96 | static unsigned int param_get_min(struct snd_pcm_hw_params *p, int n) | ||
97 | { | ||
98 | if (param_is_interval(n)) { | ||
99 | struct snd_interval *i = param_to_interval(p, n); | ||
100 | return i->min; | ||
101 | } | ||
102 | return 0; | ||
103 | } | ||
104 | |||
105 | static unsigned int param_get_max(struct snd_pcm_hw_params *p, int n) | ||
106 | { | ||
107 | if (param_is_interval(n)) { | ||
108 | struct snd_interval *i = param_to_interval(p, n); | ||
109 | return i->max; | ||
110 | } | ||
111 | return 0; | ||
112 | } | ||
113 | |||
114 | static void param_set_int(struct snd_pcm_hw_params *p, int n, unsigned int val) | ||
115 | { | ||
116 | if (param_is_interval(n)) { | ||
117 | struct snd_interval *i = param_to_interval(p, n); | ||
118 | i->min = val; | ||
119 | i->max = val; | ||
120 | i->integer = 1; | ||
121 | } | ||
122 | } | ||
123 | |||
124 | static unsigned int param_get_int(struct snd_pcm_hw_params *p, int n) | ||
125 | { | ||
126 | if (param_is_interval(n)) { | ||
127 | struct snd_interval *i = param_to_interval(p, n); | ||
128 | if (i->integer) | ||
129 | return i->max; | ||
130 | } | ||
131 | return 0; | ||
132 | } | ||
133 | |||
134 | static void param_init(struct snd_pcm_hw_params *p) | ||
135 | { | ||
136 | int n; | ||
137 | |||
138 | memset(p, 0, sizeof(*p)); | ||
139 | for (n = SNDRV_PCM_HW_PARAM_FIRST_MASK; | ||
140 | n <= SNDRV_PCM_HW_PARAM_LAST_MASK; n++) { | ||
141 | struct snd_mask *m = param_to_mask(p, n); | ||
142 | m->bits[0] = ~0; | ||
143 | m->bits[1] = ~0; | ||
144 | } | ||
145 | for (n = SNDRV_PCM_HW_PARAM_FIRST_INTERVAL; | ||
146 | n <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; n++) { | ||
147 | struct snd_interval *i = param_to_interval(p, n); | ||
148 | i->min = 0; | ||
149 | i->max = ~0; | ||
150 | } | ||
151 | p->rmask = ~0U; | ||
152 | p->cmask = 0; | ||
153 | p->info = ~0U; | ||
154 | } | ||
155 | |||
156 | #define PCM_ERROR_MAX 128 | ||
157 | |||
158 | struct pcm { | ||
159 | int fd; | ||
160 | unsigned int flags; | ||
161 | int running:1; | ||
162 | int prepared:1; | ||
163 | int underruns; | ||
164 | unsigned int buffer_size; | ||
165 | unsigned int boundary; | ||
166 | char error[PCM_ERROR_MAX]; | ||
167 | struct pcm_config config; | ||
168 | struct snd_pcm_mmap_status *mmap_status; | ||
169 | struct snd_pcm_mmap_control *mmap_control; | ||
170 | struct snd_pcm_sync_ptr *sync_ptr; | ||
171 | void *mmap_buffer; | ||
172 | unsigned int noirq_frames_per_msec; | ||
173 | }; | ||
174 | |||
175 | unsigned int pcm_get_buffer_size(struct pcm *pcm) | ||
176 | { | ||
177 | return pcm->buffer_size; | ||
178 | } | ||
179 | |||
180 | const char* pcm_get_error(struct pcm *pcm) | ||
181 | { | ||
182 | return pcm->error; | ||
183 | } | ||
184 | |||
185 | static int oops(struct pcm *pcm, int e, const char *fmt, ...) | ||
186 | { | ||
187 | va_list ap; | ||
188 | int sz; | ||
189 | |||
190 | va_start(ap, fmt); | ||
191 | vsnprintf(pcm->error, PCM_ERROR_MAX, fmt, ap); | ||
192 | va_end(ap); | ||
193 | sz = strlen(pcm->error); | ||
194 | |||
195 | if (errno) | ||
196 | snprintf(pcm->error + sz, PCM_ERROR_MAX - sz, | ||
197 | ": %s", strerror(e)); | ||
198 | return -1; | ||
199 | } | ||
200 | |||
201 | static unsigned int pcm_format_to_alsa(enum pcm_format format) | ||
202 | { | ||
203 | switch (format) { | ||
204 | case PCM_FORMAT_S32_LE: | ||
205 | return SNDRV_PCM_FORMAT_S32_LE; | ||
206 | case PCM_FORMAT_S8: | ||
207 | return SNDRV_PCM_FORMAT_S8; | ||
208 | case PCM_FORMAT_S24_LE: | ||
209 | return SNDRV_PCM_FORMAT_S24_LE; | ||
210 | default: | ||
211 | case PCM_FORMAT_S16_LE: | ||
212 | return SNDRV_PCM_FORMAT_S16_LE; | ||
213 | }; | ||
214 | } | ||
215 | |||
216 | unsigned int pcm_format_to_bits(enum pcm_format format) | ||
217 | { | ||
218 | switch (format) { | ||
219 | case PCM_FORMAT_S32_LE: | ||
220 | case PCM_FORMAT_S24_LE: | ||
221 | return 32; | ||
222 | default: | ||
223 | case PCM_FORMAT_S16_LE: | ||
224 | return 16; | ||
225 | }; | ||
226 | } | ||
227 | |||
228 | unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes) | ||
229 | { | ||
230 | return bytes / (pcm->config.channels * | ||
231 | (pcm_format_to_bits(pcm->config.format) >> 3)); | ||
232 | } | ||
233 | |||
234 | unsigned int pcm_frames_to_bytes(struct pcm *pcm, unsigned int frames) | ||
235 | { | ||
236 | return frames * pcm->config.channels * | ||
237 | (pcm_format_to_bits(pcm->config.format) >> 3); | ||
238 | } | ||
239 | |||
240 | static int pcm_sync_ptr(struct pcm *pcm, int flags) { | ||
241 | if (pcm->sync_ptr) { | ||
242 | pcm->sync_ptr->flags = flags; | ||
243 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_SYNC_PTR, pcm->sync_ptr) < 0) | ||
244 | return -1; | ||
245 | } | ||
246 | return 0; | ||
247 | } | ||
248 | |||
249 | static int pcm_hw_mmap_status(struct pcm *pcm) { | ||
250 | |||
251 | if (pcm->sync_ptr) | ||
252 | return 0; | ||
253 | |||
254 | int page_size = sysconf(_SC_PAGE_SIZE); | ||
255 | pcm->mmap_status = mmap(NULL, page_size, PROT_READ, MAP_FILE | MAP_SHARED, | ||
256 | pcm->fd, SNDRV_PCM_MMAP_OFFSET_STATUS); | ||
257 | if (pcm->mmap_status == MAP_FAILED) | ||
258 | pcm->mmap_status = NULL; | ||
259 | if (!pcm->mmap_status) | ||
260 | goto mmap_error; | ||
261 | |||
262 | pcm->mmap_control = mmap(NULL, page_size, PROT_READ | PROT_WRITE, | ||
263 | MAP_FILE | MAP_SHARED, pcm->fd, SNDRV_PCM_MMAP_OFFSET_CONTROL); | ||
264 | if (pcm->mmap_control == MAP_FAILED) | ||
265 | pcm->mmap_control = NULL; | ||
266 | if (!pcm->mmap_control) { | ||
267 | munmap(pcm->mmap_status, page_size); | ||
268 | pcm->mmap_status = NULL; | ||
269 | goto mmap_error; | ||
270 | } | ||
271 | pcm->mmap_control->avail_min = 1; | ||
272 | |||
273 | return 0; | ||
274 | |||
275 | mmap_error: | ||
276 | |||
277 | pcm->sync_ptr = calloc(1, sizeof(*pcm->sync_ptr)); | ||
278 | if (!pcm->sync_ptr) | ||
279 | return -ENOMEM; | ||
280 | pcm->mmap_status = &pcm->sync_ptr->s.status; | ||
281 | pcm->mmap_control = &pcm->sync_ptr->c.control; | ||
282 | pcm->mmap_control->avail_min = 1; | ||
283 | pcm_sync_ptr(pcm, 0); | ||
284 | |||
285 | return 0; | ||
286 | } | ||
287 | |||
288 | static void pcm_hw_munmap_status(struct pcm *pcm) { | ||
289 | if (pcm->sync_ptr) { | ||
290 | free(pcm->sync_ptr); | ||
291 | pcm->sync_ptr = NULL; | ||
292 | } else { | ||
293 | int page_size = sysconf(_SC_PAGE_SIZE); | ||
294 | if (pcm->mmap_status) | ||
295 | munmap(pcm->mmap_status, page_size); | ||
296 | if (pcm->mmap_control) | ||
297 | munmap(pcm->mmap_control, page_size); | ||
298 | } | ||
299 | pcm->mmap_status = NULL; | ||
300 | pcm->mmap_control = NULL; | ||
301 | } | ||
302 | |||
303 | static int pcm_areas_copy(struct pcm *pcm, unsigned int pcm_offset, | ||
304 | char *buf, unsigned int src_offset, | ||
305 | unsigned int frames) | ||
306 | { | ||
307 | int size_bytes = pcm_frames_to_bytes(pcm, frames); | ||
308 | int pcm_offset_bytes = pcm_frames_to_bytes(pcm, pcm_offset); | ||
309 | int src_offset_bytes = pcm_frames_to_bytes(pcm, src_offset); | ||
310 | |||
311 | /* interleaved only atm */ | ||
312 | if (pcm->flags & PCM_IN) | ||
313 | memcpy(buf + src_offset_bytes, | ||
314 | (char*)pcm->mmap_buffer + pcm_offset_bytes, | ||
315 | size_bytes); | ||
316 | else | ||
317 | memcpy((char*)pcm->mmap_buffer + pcm_offset_bytes, | ||
318 | buf + src_offset_bytes, | ||
319 | size_bytes); | ||
320 | return 0; | ||
321 | } | ||
322 | |||
323 | static int pcm_mmap_transfer_areas(struct pcm *pcm, char *buf, | ||
324 | unsigned int offset, unsigned int size) | ||
325 | { | ||
326 | void *pcm_areas; | ||
327 | int commit; | ||
328 | unsigned int pcm_offset, frames, count = 0; | ||
329 | |||
330 | while (size > 0) { | ||
331 | frames = size; | ||
332 | pcm_mmap_begin(pcm, &pcm_areas, &pcm_offset, &frames); | ||
333 | pcm_areas_copy(pcm, pcm_offset, buf, offset, frames); | ||
334 | commit = pcm_mmap_commit(pcm, pcm_offset, frames); | ||
335 | if (commit < 0) { | ||
336 | oops(pcm, commit, "failed to commit %d frames\n", frames); | ||
337 | return commit; | ||
338 | } | ||
339 | |||
340 | offset += commit; | ||
341 | count += commit; | ||
342 | size -= commit; | ||
343 | } | ||
344 | return count; | ||
345 | } | ||
346 | |||
347 | int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail, | ||
348 | struct timespec *tstamp) | ||
349 | { | ||
350 | int frames; | ||
351 | int rc; | ||
352 | snd_pcm_uframes_t hw_ptr; | ||
353 | |||
354 | if (!pcm_is_ready(pcm)) | ||
355 | return -1; | ||
356 | |||
357 | rc = pcm_sync_ptr(pcm, SNDRV_PCM_SYNC_PTR_APPL|SNDRV_PCM_SYNC_PTR_HWSYNC); | ||
358 | if (rc < 0) | ||
359 | return -1; | ||
360 | |||
361 | if ((pcm->mmap_status->state != PCM_STATE_RUNNING) && | ||
362 | (pcm->mmap_status->state != PCM_STATE_DRAINING)) | ||
363 | return -1; | ||
364 | |||
365 | *tstamp = pcm->mmap_status->tstamp; | ||
366 | if (tstamp->tv_sec == 0 && tstamp->tv_nsec == 0) | ||
367 | return -1; | ||
368 | |||
369 | hw_ptr = pcm->mmap_status->hw_ptr; | ||
370 | if (pcm->flags & PCM_IN) | ||
371 | frames = hw_ptr - pcm->mmap_control->appl_ptr; | ||
372 | else | ||
373 | frames = hw_ptr + pcm->buffer_size - pcm->mmap_control->appl_ptr; | ||
374 | |||
375 | if (frames < 0) | ||
376 | return -1; | ||
377 | |||
378 | *avail = (unsigned int)frames; | ||
379 | |||
380 | return 0; | ||
381 | } | ||
382 | |||
383 | int pcm_write(struct pcm *pcm, const void *data, unsigned int count) | ||
384 | { | ||
385 | struct snd_xferi x; | ||
386 | |||
387 | if (pcm->flags & PCM_IN) | ||
388 | return -EINVAL; | ||
389 | |||
390 | x.buf = (void*)data; | ||
391 | x.frames = count / (pcm->config.channels * | ||
392 | pcm_format_to_bits(pcm->config.format) / 8); | ||
393 | |||
394 | for (;;) { | ||
395 | if (!pcm->running) { | ||
396 | int prepare_error = pcm_prepare(pcm); | ||
397 | if (prepare_error) | ||
398 | return prepare_error; | ||
399 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_WRITEI_FRAMES, &x)) | ||
400 | return oops(pcm, errno, "cannot write initial data"); | ||
401 | pcm->running = 1; | ||
402 | return 0; | ||
403 | } | ||
404 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_WRITEI_FRAMES, &x)) { | ||
405 | pcm->prepared = 0; | ||
406 | pcm->running = 0; | ||
407 | if (errno == EPIPE) { | ||
408 | /* we failed to make our window -- try to restart if we are | ||
409 | * allowed to do so. Otherwise, simply allow the EPIPE error to | ||
410 | * propagate up to the app level */ | ||
411 | pcm->underruns++; | ||
412 | if (pcm->flags & PCM_NORESTART) | ||
413 | return -EPIPE; | ||
414 | continue; | ||
415 | } | ||
416 | return oops(pcm, errno, "cannot write stream data"); | ||
417 | } | ||
418 | return 0; | ||
419 | } | ||
420 | } | ||
421 | |||
422 | int pcm_read(struct pcm *pcm, void *data, unsigned int count) | ||
423 | { | ||
424 | struct snd_xferi x; | ||
425 | |||
426 | if (!(pcm->flags & PCM_IN)) | ||
427 | return -EINVAL; | ||
428 | |||
429 | x.buf = data; | ||
430 | x.frames = count / (pcm->config.channels * | ||
431 | pcm_format_to_bits(pcm->config.format) / 8); | ||
432 | |||
433 | for (;;) { | ||
434 | if (!pcm->running) { | ||
435 | if (pcm_start(pcm) < 0) { | ||
436 | fprintf(stderr, "start error"); | ||
437 | return -errno; | ||
438 | } | ||
439 | } | ||
440 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_READI_FRAMES, &x)) { | ||
441 | pcm->prepared = 0; | ||
442 | pcm->running = 0; | ||
443 | if (errno == EPIPE) { | ||
444 | /* we failed to make our window -- try to restart */ | ||
445 | pcm->underruns++; | ||
446 | continue; | ||
447 | } | ||
448 | return oops(pcm, errno, "cannot read stream data"); | ||
449 | } | ||
450 | return 0; | ||
451 | } | ||
452 | } | ||
453 | |||
454 | static struct pcm bad_pcm = { | ||
455 | .fd = -1, | ||
456 | }; | ||
457 | |||
458 | struct pcm_params *pcm_params_get(unsigned int card, unsigned int device, | ||
459 | unsigned int flags) | ||
460 | { | ||
461 | struct snd_pcm_hw_params *params; | ||
462 | char fn[256]; | ||
463 | int fd; | ||
464 | |||
465 | snprintf(fn, sizeof(fn), "/dev/snd/pcmC%uD%u%c", card, device, | ||
466 | flags & PCM_IN ? 'c' : 'p'); | ||
467 | |||
468 | fd = open(fn, O_RDWR); | ||
469 | if (fd < 0) { | ||
470 | fprintf(stderr, "cannot open device '%s'\n", fn); | ||
471 | goto err_open; | ||
472 | } | ||
473 | |||
474 | params = calloc(1, sizeof(struct snd_pcm_hw_params)); | ||
475 | if (!params) | ||
476 | goto err_calloc; | ||
477 | |||
478 | param_init(params); | ||
479 | if (ioctl(fd, SNDRV_PCM_IOCTL_HW_REFINE, params)) { | ||
480 | fprintf(stderr, "SNDRV_PCM_IOCTL_HW_REFINE error (%d)\n", errno); | ||
481 | goto err_hw_refine; | ||
482 | } | ||
483 | |||
484 | close(fd); | ||
485 | |||
486 | return (struct pcm_params *)params; | ||
487 | |||
488 | err_hw_refine: | ||
489 | free(params); | ||
490 | err_calloc: | ||
491 | close(fd); | ||
492 | err_open: | ||
493 | return NULL; | ||
494 | } | ||
495 | |||
496 | void pcm_params_free(struct pcm_params *pcm_params) | ||
497 | { | ||
498 | struct snd_pcm_hw_params *params = (struct snd_pcm_hw_params *)pcm_params; | ||
499 | |||
500 | if (params) | ||
501 | free(params); | ||
502 | } | ||
503 | |||
504 | static int pcm_param_to_alsa(enum pcm_param param) | ||
505 | { | ||
506 | switch (param) { | ||
507 | case PCM_PARAM_ACCESS: | ||
508 | return SNDRV_PCM_HW_PARAM_ACCESS; | ||
509 | case PCM_PARAM_FORMAT: | ||
510 | return SNDRV_PCM_HW_PARAM_FORMAT; | ||
511 | case PCM_PARAM_SUBFORMAT: | ||
512 | return SNDRV_PCM_HW_PARAM_SUBFORMAT; | ||
513 | case PCM_PARAM_SAMPLE_BITS: | ||
514 | return SNDRV_PCM_HW_PARAM_SAMPLE_BITS; | ||
515 | break; | ||
516 | case PCM_PARAM_FRAME_BITS: | ||
517 | return SNDRV_PCM_HW_PARAM_FRAME_BITS; | ||
518 | break; | ||
519 | case PCM_PARAM_CHANNELS: | ||
520 | return SNDRV_PCM_HW_PARAM_CHANNELS; | ||
521 | break; | ||
522 | case PCM_PARAM_RATE: | ||
523 | return SNDRV_PCM_HW_PARAM_RATE; | ||
524 | break; | ||
525 | case PCM_PARAM_PERIOD_TIME: | ||
526 | return SNDRV_PCM_HW_PARAM_PERIOD_TIME; | ||
527 | break; | ||
528 | case PCM_PARAM_PERIOD_SIZE: | ||
529 | return SNDRV_PCM_HW_PARAM_PERIOD_SIZE; | ||
530 | break; | ||
531 | case PCM_PARAM_PERIOD_BYTES: | ||
532 | return SNDRV_PCM_HW_PARAM_PERIOD_BYTES; | ||
533 | break; | ||
534 | case PCM_PARAM_PERIODS: | ||
535 | return SNDRV_PCM_HW_PARAM_PERIODS; | ||
536 | break; | ||
537 | case PCM_PARAM_BUFFER_TIME: | ||
538 | return SNDRV_PCM_HW_PARAM_BUFFER_TIME; | ||
539 | break; | ||
540 | case PCM_PARAM_BUFFER_SIZE: | ||
541 | return SNDRV_PCM_HW_PARAM_BUFFER_SIZE; | ||
542 | break; | ||
543 | case PCM_PARAM_BUFFER_BYTES: | ||
544 | return SNDRV_PCM_HW_PARAM_BUFFER_BYTES; | ||
545 | break; | ||
546 | case PCM_PARAM_TICK_TIME: | ||
547 | return SNDRV_PCM_HW_PARAM_TICK_TIME; | ||
548 | break; | ||
549 | |||
550 | default: | ||
551 | return -1; | ||
552 | } | ||
553 | } | ||
554 | |||
555 | struct pcm_mask *pcm_params_get_mask(struct pcm_params *pcm_params, | ||
556 | enum pcm_param param) | ||
557 | { | ||
558 | int p; | ||
559 | struct snd_pcm_hw_params *params = (struct snd_pcm_hw_params *)pcm_params; | ||
560 | if (params == NULL) { | ||
561 | return NULL; | ||
562 | } | ||
563 | |||
564 | p = pcm_param_to_alsa(param); | ||
565 | if (p < 0 || !param_is_mask(p)) { | ||
566 | return NULL; | ||
567 | } | ||
568 | |||
569 | return (struct pcm_mask *)param_to_mask(params, p); | ||
570 | } | ||
571 | |||
572 | unsigned int pcm_params_get_min(struct pcm_params *pcm_params, | ||
573 | enum pcm_param param) | ||
574 | { | ||
575 | struct snd_pcm_hw_params *params = (struct snd_pcm_hw_params *)pcm_params; | ||
576 | int p; | ||
577 | |||
578 | if (!params) | ||
579 | return 0; | ||
580 | |||
581 | p = pcm_param_to_alsa(param); | ||
582 | if (p < 0) | ||
583 | return 0; | ||
584 | |||
585 | return param_get_min(params, p); | ||
586 | } | ||
587 | |||
588 | unsigned int pcm_params_get_max(struct pcm_params *pcm_params, | ||
589 | enum pcm_param param) | ||
590 | { | ||
591 | struct snd_pcm_hw_params *params = (struct snd_pcm_hw_params *)pcm_params; | ||
592 | int p; | ||
593 | |||
594 | if (!params) | ||
595 | return 0; | ||
596 | |||
597 | p = pcm_param_to_alsa(param); | ||
598 | if (p < 0) | ||
599 | return 0; | ||
600 | |||
601 | return param_get_max(params, p); | ||
602 | } | ||
603 | |||
604 | int pcm_close(struct pcm *pcm) | ||
605 | { | ||
606 | if (pcm == &bad_pcm) | ||
607 | return 0; | ||
608 | |||
609 | pcm_hw_munmap_status(pcm); | ||
610 | |||
611 | if (pcm->flags & PCM_MMAP) { | ||
612 | pcm_stop(pcm); | ||
613 | munmap(pcm->mmap_buffer, pcm_frames_to_bytes(pcm, pcm->buffer_size)); | ||
614 | } | ||
615 | |||
616 | if (pcm->fd >= 0) | ||
617 | close(pcm->fd); | ||
618 | pcm->prepared = 0; | ||
619 | pcm->running = 0; | ||
620 | pcm->buffer_size = 0; | ||
621 | pcm->fd = -1; | ||
622 | free(pcm); | ||
623 | return 0; | ||
624 | } | ||
625 | |||
626 | struct pcm *pcm_open(unsigned int card, unsigned int device, | ||
627 | unsigned int flags, struct pcm_config *config) | ||
628 | { | ||
629 | struct pcm *pcm; | ||
630 | struct snd_pcm_info info; | ||
631 | struct snd_pcm_hw_params params; | ||
632 | struct snd_pcm_sw_params sparams; | ||
633 | char fn[256]; | ||
634 | int rc; | ||
635 | |||
636 | pcm = calloc(1, sizeof(struct pcm)); | ||
637 | if (!pcm || !config) | ||
638 | return &bad_pcm; /* TODO: could support default config here */ | ||
639 | |||
640 | pcm->config = *config; | ||
641 | |||
642 | snprintf(fn, sizeof(fn), "/dev/snd/pcmC%uD%u%c", card, device, | ||
643 | flags & PCM_IN ? 'c' : 'p'); | ||
644 | |||
645 | pcm->flags = flags; | ||
646 | pcm->fd = open(fn, O_RDWR); | ||
647 | if (pcm->fd < 0) { | ||
648 | oops(pcm, errno, "cannot open device '%s'", fn); | ||
649 | return pcm; | ||
650 | } | ||
651 | |||
652 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_INFO, &info)) { | ||
653 | oops(pcm, errno, "cannot get info"); | ||
654 | goto fail_close; | ||
655 | } | ||
656 | |||
657 | param_init(¶ms); | ||
658 | param_set_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT, | ||
659 | pcm_format_to_alsa(config->format)); | ||
660 | param_set_mask(¶ms, SNDRV_PCM_HW_PARAM_SUBFORMAT, | ||
661 | SNDRV_PCM_SUBFORMAT_STD); | ||
662 | param_set_min(¶ms, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, config->period_size); | ||
663 | param_set_int(¶ms, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, | ||
664 | pcm_format_to_bits(config->format)); | ||
665 | param_set_int(¶ms, SNDRV_PCM_HW_PARAM_FRAME_BITS, | ||
666 | pcm_format_to_bits(config->format) * config->channels); | ||
667 | param_set_int(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS, | ||
668 | config->channels); | ||
669 | param_set_int(¶ms, SNDRV_PCM_HW_PARAM_PERIODS, config->period_count); | ||
670 | param_set_int(¶ms, SNDRV_PCM_HW_PARAM_RATE, config->rate); | ||
671 | |||
672 | if (flags & PCM_NOIRQ) { | ||
673 | |||
674 | if (!(flags & PCM_MMAP)) { | ||
675 | oops(pcm, -EINVAL, "noirq only currently supported with mmap()."); | ||
676 | goto fail; | ||
677 | } | ||
678 | |||
679 | params.flags |= SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP; | ||
680 | pcm->noirq_frames_per_msec = config->rate / 1000; | ||
681 | } | ||
682 | |||
683 | if (flags & PCM_MMAP) | ||
684 | param_set_mask(¶ms, SNDRV_PCM_HW_PARAM_ACCESS, | ||
685 | SNDRV_PCM_ACCESS_MMAP_INTERLEAVED); | ||
686 | else | ||
687 | param_set_mask(¶ms, SNDRV_PCM_HW_PARAM_ACCESS, | ||
688 | SNDRV_PCM_ACCESS_RW_INTERLEAVED); | ||
689 | |||
690 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_HW_PARAMS, ¶ms)) { | ||
691 | oops(pcm, errno, "cannot set hw params"); | ||
692 | goto fail_close; | ||
693 | } | ||
694 | |||
695 | /* get our refined hw_params */ | ||
696 | config->period_size = param_get_int(¶ms, SNDRV_PCM_HW_PARAM_PERIOD_SIZE); | ||
697 | config->period_count = param_get_int(¶ms, SNDRV_PCM_HW_PARAM_PERIODS); | ||
698 | pcm->buffer_size = config->period_count * config->period_size; | ||
699 | |||
700 | if (flags & PCM_MMAP) { | ||
701 | pcm->mmap_buffer = mmap(NULL, pcm_frames_to_bytes(pcm, pcm->buffer_size), | ||
702 | PROT_READ | PROT_WRITE, MAP_FILE | MAP_SHARED, pcm->fd, 0); | ||
703 | if (pcm->mmap_buffer == MAP_FAILED) { | ||
704 | oops(pcm, -errno, "failed to mmap buffer %d bytes\n", | ||
705 | pcm_frames_to_bytes(pcm, pcm->buffer_size)); | ||
706 | goto fail_close; | ||
707 | } | ||
708 | } | ||
709 | |||
710 | |||
711 | memset(&sparams, 0, sizeof(sparams)); | ||
712 | sparams.tstamp_mode = SNDRV_PCM_TSTAMP_ENABLE; | ||
713 | sparams.period_step = 1; | ||
714 | sparams.avail_min = 1; | ||
715 | |||
716 | if (!config->start_threshold) { | ||
717 | if (pcm->flags & PCM_IN) | ||
718 | pcm->config.start_threshold = sparams.start_threshold = 1; | ||
719 | else | ||
720 | pcm->config.start_threshold = sparams.start_threshold = | ||
721 | config->period_count * config->period_size / 2; | ||
722 | } else | ||
723 | sparams.start_threshold = config->start_threshold; | ||
724 | |||
725 | /* pick a high stop threshold - todo: does this need further tuning */ | ||
726 | if (!config->stop_threshold) { | ||
727 | if (pcm->flags & PCM_IN) | ||
728 | pcm->config.stop_threshold = sparams.stop_threshold = | ||
729 | config->period_count * config->period_size * 10; | ||
730 | else | ||
731 | pcm->config.stop_threshold = sparams.stop_threshold = | ||
732 | config->period_count * config->period_size; | ||
733 | } | ||
734 | else | ||
735 | sparams.stop_threshold = config->stop_threshold; | ||
736 | |||
737 | sparams.xfer_align = config->period_size / 2; /* needed for old kernels */ | ||
738 | sparams.silence_size = 0; | ||
739 | sparams.silence_threshold = config->silence_threshold; | ||
740 | pcm->boundary = sparams.boundary = pcm->buffer_size; | ||
741 | |||
742 | while (pcm->boundary * 2 <= INT_MAX - pcm->buffer_size) | ||
743 | pcm->boundary *= 2; | ||
744 | |||
745 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_SW_PARAMS, &sparams)) { | ||
746 | oops(pcm, errno, "cannot set sw params"); | ||
747 | goto fail; | ||
748 | } | ||
749 | |||
750 | rc = pcm_hw_mmap_status(pcm); | ||
751 | if (rc < 0) { | ||
752 | oops(pcm, rc, "mmap status failed"); | ||
753 | goto fail; | ||
754 | } | ||
755 | |||
756 | #ifdef SNDRV_PCM_IOCTL_TTSTAMP | ||
757 | if (pcm->flags & PCM_MONOTONIC) { | ||
758 | int arg = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC; | ||
759 | rc = ioctl(pcm->fd, SNDRV_PCM_IOCTL_TTSTAMP, &arg); | ||
760 | if (rc < 0) { | ||
761 | oops(pcm, rc, "cannot set timestamp type"); | ||
762 | goto fail; | ||
763 | } | ||
764 | } | ||
765 | #endif | ||
766 | |||
767 | pcm->underruns = 0; | ||
768 | return pcm; | ||
769 | |||
770 | fail: | ||
771 | if (flags & PCM_MMAP) | ||
772 | munmap(pcm->mmap_buffer, pcm_frames_to_bytes(pcm, pcm->buffer_size)); | ||
773 | fail_close: | ||
774 | close(pcm->fd); | ||
775 | pcm->fd = -1; | ||
776 | return pcm; | ||
777 | } | ||
778 | |||
779 | int pcm_is_ready(struct pcm *pcm) | ||
780 | { | ||
781 | return pcm->fd >= 0; | ||
782 | } | ||
783 | |||
784 | int pcm_prepare(struct pcm *pcm) | ||
785 | { | ||
786 | if (pcm->prepared) | ||
787 | return 0; | ||
788 | |||
789 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_PREPARE) < 0) | ||
790 | return oops(pcm, errno, "cannot prepare channel"); | ||
791 | |||
792 | pcm->prepared = 1; | ||
793 | return 0; | ||
794 | } | ||
795 | |||
796 | int pcm_start(struct pcm *pcm) | ||
797 | { | ||
798 | int prepare_error = pcm_prepare(pcm); | ||
799 | if (prepare_error) | ||
800 | return prepare_error; | ||
801 | |||
802 | if (pcm->flags & PCM_MMAP) | ||
803 | pcm_sync_ptr(pcm, 0); | ||
804 | |||
805 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_START) < 0) | ||
806 | return oops(pcm, errno, "cannot start channel"); | ||
807 | |||
808 | pcm->running = 1; | ||
809 | return 0; | ||
810 | } | ||
811 | |||
812 | int pcm_stop(struct pcm *pcm) | ||
813 | { | ||
814 | if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_DROP) < 0) | ||
815 | return oops(pcm, errno, "cannot stop channel"); | ||
816 | |||
817 | pcm->prepared = 0; | ||
818 | pcm->running = 0; | ||
819 | return 0; | ||
820 | } | ||
821 | |||
822 | static inline int pcm_mmap_playback_avail(struct pcm *pcm) | ||
823 | { | ||
824 | int avail; | ||
825 | |||
826 | avail = pcm->mmap_status->hw_ptr + pcm->buffer_size - pcm->mmap_control->appl_ptr; | ||
827 | |||
828 | if (avail < 0) | ||
829 | avail += pcm->boundary; | ||
830 | else if (avail > (int)pcm->boundary) | ||
831 | avail -= pcm->boundary; | ||
832 | |||
833 | return avail; | ||
834 | } | ||
835 | |||
836 | static inline int pcm_mmap_capture_avail(struct pcm *pcm) | ||
837 | { | ||
838 | int avail = pcm->mmap_status->hw_ptr - pcm->mmap_control->appl_ptr; | ||
839 | if (avail < 0) | ||
840 | avail += pcm->boundary; | ||
841 | return avail; | ||
842 | } | ||
843 | |||
844 | static inline int pcm_mmap_avail(struct pcm *pcm) | ||
845 | { | ||
846 | pcm_sync_ptr(pcm, SNDRV_PCM_SYNC_PTR_HWSYNC); | ||
847 | if (pcm->flags & PCM_IN) | ||
848 | return pcm_mmap_capture_avail(pcm); | ||
849 | else | ||
850 | return pcm_mmap_playback_avail(pcm); | ||
851 | } | ||
852 | |||
853 | static void pcm_mmap_appl_forward(struct pcm *pcm, int frames) | ||
854 | { | ||
855 | unsigned int appl_ptr = pcm->mmap_control->appl_ptr; | ||
856 | appl_ptr += frames; | ||
857 | |||
858 | /* check for boundary wrap */ | ||
859 | if (appl_ptr > pcm->boundary) | ||
860 | appl_ptr -= pcm->boundary; | ||
861 | pcm->mmap_control->appl_ptr = appl_ptr; | ||
862 | } | ||
863 | |||
864 | int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset, | ||
865 | unsigned int *frames) | ||
866 | { | ||
867 | unsigned int continuous, copy_frames, avail; | ||
868 | |||
869 | /* return the mmap buffer */ | ||
870 | *areas = pcm->mmap_buffer; | ||
871 | |||
872 | /* and the application offset in frames */ | ||
873 | *offset = pcm->mmap_control->appl_ptr % pcm->buffer_size; | ||
874 | |||
875 | avail = pcm_mmap_avail(pcm); | ||
876 | if (avail > pcm->buffer_size) | ||
877 | avail = pcm->buffer_size; | ||
878 | continuous = pcm->buffer_size - *offset; | ||
879 | |||
880 | /* we can only copy frames if the are availabale and continuos */ | ||
881 | copy_frames = *frames; | ||
882 | if (copy_frames > avail) | ||
883 | copy_frames = avail; | ||
884 | if (copy_frames > continuous) | ||
885 | copy_frames = continuous; | ||
886 | *frames = copy_frames; | ||
887 | |||
888 | return 0; | ||
889 | } | ||
890 | |||
891 | int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames) | ||
892 | { | ||
893 | (void) offset; | ||
894 | /* update the application pointer in userspace and kernel */ | ||
895 | pcm_mmap_appl_forward(pcm, frames); | ||
896 | pcm_sync_ptr(pcm, 0); | ||
897 | |||
898 | return frames; | ||
899 | } | ||
900 | |||
901 | int pcm_avail_update(struct pcm *pcm) | ||
902 | { | ||
903 | pcm_sync_ptr(pcm, 0); | ||
904 | return pcm_mmap_avail(pcm); | ||
905 | } | ||
906 | |||
907 | int pcm_state(struct pcm *pcm) | ||
908 | { | ||
909 | int err = pcm_sync_ptr(pcm, 0); | ||
910 | if (err < 0) | ||
911 | return err; | ||
912 | |||
913 | return pcm->mmap_status->state; | ||
914 | } | ||
915 | |||
916 | int pcm_wait(struct pcm *pcm, int timeout) | ||
917 | { | ||
918 | struct pollfd pfd; | ||
919 | int err; | ||
920 | |||
921 | pfd.fd = pcm->fd; | ||
922 | pfd.events = POLLOUT | POLLERR | POLLNVAL; | ||
923 | |||
924 | do { | ||
925 | /* let's wait for avail or timeout */ | ||
926 | err = poll(&pfd, 1, timeout); | ||
927 | if (err < 0) | ||
928 | return -errno; | ||
929 | |||
930 | /* timeout ? */ | ||
931 | if (err == 0) | ||
932 | return 0; | ||
933 | |||
934 | /* have we been interrupted ? */ | ||
935 | if (errno == -EINTR) | ||
936 | continue; | ||
937 | |||
938 | /* check for any errors */ | ||
939 | if (pfd.revents & (POLLERR | POLLNVAL)) { | ||
940 | switch (pcm_state(pcm)) { | ||
941 | case PCM_STATE_XRUN: | ||
942 | return -EPIPE; | ||
943 | case PCM_STATE_SUSPENDED: | ||
944 | return -ESTRPIPE; | ||
945 | case PCM_STATE_DISCONNECTED: | ||
946 | return -ENODEV; | ||
947 | default: | ||
948 | return -EIO; | ||
949 | } | ||
950 | } | ||
951 | /* poll again if fd not ready for IO */ | ||
952 | } while (!(pfd.revents & (POLLIN | POLLOUT))); | ||
953 | |||
954 | return 1; | ||
955 | } | ||
956 | |||
957 | int pcm_mmap_transfer(struct pcm *pcm, const void *buffer, unsigned int bytes) | ||
958 | { | ||
959 | int err = 0, frames, avail; | ||
960 | unsigned int offset = 0, count; | ||
961 | |||
962 | if (bytes == 0) | ||
963 | return 0; | ||
964 | |||
965 | count = pcm_bytes_to_frames(pcm, bytes); | ||
966 | |||
967 | while (count > 0) { | ||
968 | |||
969 | /* get the available space for writing new frames */ | ||
970 | avail = pcm_avail_update(pcm); | ||
971 | if (avail < 0) { | ||
972 | fprintf(stderr, "cannot determine available mmap frames"); | ||
973 | return err; | ||
974 | } | ||
975 | |||
976 | /* start the audio if we reach the threshold */ | ||
977 | if (!pcm->running && | ||
978 | (pcm->buffer_size - avail) >= pcm->config.start_threshold) { | ||
979 | if (pcm_start(pcm) < 0) { | ||
980 | fprintf(stderr, "start error: hw 0x%x app 0x%x avail 0x%x\n", | ||
981 | (unsigned int)pcm->mmap_status->hw_ptr, | ||
982 | (unsigned int)pcm->mmap_control->appl_ptr, | ||
983 | avail); | ||
984 | return -errno; | ||
985 | } | ||
986 | } | ||
987 | |||
988 | /* sleep until we have space to write new frames */ | ||
989 | if (pcm->running && | ||
990 | (unsigned int)avail < pcm->mmap_control->avail_min) { | ||
991 | int time = -1; | ||
992 | |||
993 | if (pcm->flags & PCM_NOIRQ) | ||
994 | time = (pcm->buffer_size - avail - pcm->mmap_control->avail_min) | ||
995 | / pcm->noirq_frames_per_msec; | ||
996 | |||
997 | err = pcm_wait(pcm, time); | ||
998 | if (err < 0) { | ||
999 | pcm->prepared = 0; | ||
1000 | pcm->running = 0; | ||
1001 | fprintf(stderr, "wait error: hw 0x%x app 0x%x avail 0x%x\n", | ||
1002 | (unsigned int)pcm->mmap_status->hw_ptr, | ||
1003 | (unsigned int)pcm->mmap_control->appl_ptr, | ||
1004 | avail); | ||
1005 | pcm->mmap_control->appl_ptr = 0; | ||
1006 | return err; | ||
1007 | } | ||
1008 | continue; | ||
1009 | } | ||
1010 | |||
1011 | frames = count; | ||
1012 | if (frames > avail) | ||
1013 | frames = avail; | ||
1014 | |||
1015 | if (!frames) | ||
1016 | break; | ||
1017 | |||
1018 | /* copy frames from buffer */ | ||
1019 | frames = pcm_mmap_transfer_areas(pcm, (void *)buffer, offset, frames); | ||
1020 | if (frames < 0) { | ||
1021 | fprintf(stderr, "write error: hw 0x%x app 0x%x avail 0x%x\n", | ||
1022 | (unsigned int)pcm->mmap_status->hw_ptr, | ||
1023 | (unsigned int)pcm->mmap_control->appl_ptr, | ||
1024 | avail); | ||
1025 | return frames; | ||
1026 | } | ||
1027 | |||
1028 | offset += frames; | ||
1029 | count -= frames; | ||
1030 | } | ||
1031 | |||
1032 | return 0; | ||
1033 | } | ||
1034 | |||
1035 | int pcm_mmap_write(struct pcm *pcm, const void *data, unsigned int count) | ||
1036 | { | ||
1037 | if ((~pcm->flags) & (PCM_OUT | PCM_MMAP)) | ||
1038 | return -ENOSYS; | ||
1039 | |||
1040 | return pcm_mmap_transfer(pcm, (void *)data, count); | ||
1041 | } | ||
1042 | |||
1043 | int pcm_mmap_read(struct pcm *pcm, void *data, unsigned int count) | ||
1044 | { | ||
1045 | if ((~pcm->flags) & (PCM_IN | PCM_MMAP)) | ||
1046 | return -ENOSYS; | ||
1047 | |||
1048 | return pcm_mmap_transfer(pcm, data, count); | ||
1049 | } | ||