Commit | Line | Data |
---|---|---|
0120d0f1 TS |
1 | /* |
2 | * digi00x-pcm.c - a part of driver for Digidesign Digi 002/003 family | |
3 | * | |
4 | * Copyright (c) 2014-2015 Takashi Sakamoto | |
5 | * | |
6 | * Licensed under the terms of the GNU General Public License, version 2. | |
7 | */ | |
8 | ||
9 | #include "digi00x.h" | |
10 | ||
11 | static int hw_rule_rate(struct snd_pcm_hw_params *params, | |
12 | struct snd_pcm_hw_rule *rule) | |
13 | { | |
14 | struct snd_interval *r = | |
15 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); | |
16 | const struct snd_interval *c = | |
17 | hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
18 | struct snd_interval t = { | |
19 | .min = UINT_MAX, .max = 0, .integer = 1, | |
20 | }; | |
21 | unsigned int i; | |
22 | ||
23 | for (i = 0; i < SND_DG00X_RATE_COUNT; i++) { | |
24 | if (!snd_interval_test(c, | |
25 | snd_dg00x_stream_pcm_channels[i])) | |
26 | continue; | |
27 | ||
28 | t.min = min(t.min, snd_dg00x_stream_rates[i]); | |
29 | t.max = max(t.max, snd_dg00x_stream_rates[i]); | |
30 | } | |
31 | ||
32 | return snd_interval_refine(r, &t); | |
33 | } | |
34 | ||
35 | static int hw_rule_channels(struct snd_pcm_hw_params *params, | |
36 | struct snd_pcm_hw_rule *rule) | |
37 | { | |
38 | struct snd_interval *c = | |
39 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
40 | const struct snd_interval *r = | |
41 | hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); | |
42 | struct snd_interval t = { | |
43 | .min = UINT_MAX, .max = 0, .integer = 1, | |
44 | }; | |
45 | unsigned int i; | |
46 | ||
47 | for (i = 0; i < SND_DG00X_RATE_COUNT; i++) { | |
48 | if (!snd_interval_test(r, snd_dg00x_stream_rates[i])) | |
49 | continue; | |
50 | ||
51 | t.min = min(t.min, snd_dg00x_stream_pcm_channels[i]); | |
52 | t.max = max(t.max, snd_dg00x_stream_pcm_channels[i]); | |
53 | } | |
54 | ||
55 | return snd_interval_refine(c, &t); | |
56 | } | |
57 | ||
58 | static int pcm_init_hw_params(struct snd_dg00x *dg00x, | |
59 | struct snd_pcm_substream *substream) | |
60 | { | |
55799c5a TS |
61 | struct snd_pcm_runtime *runtime = substream->runtime; |
62 | struct snd_pcm_hardware *hw = &runtime->hw; | |
0120d0f1 TS |
63 | struct amdtp_stream *s; |
64 | int err; | |
65 | ||
0120d0f1 TS |
66 | |
67 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { | |
68 | substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S32; | |
69 | s = &dg00x->tx_stream; | |
70 | } else { | |
a02cb8f8 | 71 | substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S32; |
0120d0f1 TS |
72 | s = &dg00x->rx_stream; |
73 | } | |
74 | ||
55799c5a TS |
75 | hw->channels_min = 10; |
76 | hw->channels_max = 18; | |
77 | ||
78 | hw->rates = SNDRV_PCM_RATE_44100 | | |
79 | SNDRV_PCM_RATE_48000 | | |
80 | SNDRV_PCM_RATE_88200 | | |
81 | SNDRV_PCM_RATE_96000; | |
82 | snd_pcm_limit_hw_rates(runtime); | |
83 | ||
0120d0f1 TS |
84 | err = snd_pcm_hw_rule_add(substream->runtime, 0, |
85 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
86 | hw_rule_channels, NULL, | |
87 | SNDRV_PCM_HW_PARAM_RATE, -1); | |
88 | if (err < 0) | |
89 | return err; | |
90 | ||
91 | err = snd_pcm_hw_rule_add(substream->runtime, 0, | |
92 | SNDRV_PCM_HW_PARAM_RATE, | |
93 | hw_rule_rate, NULL, | |
94 | SNDRV_PCM_HW_PARAM_CHANNELS, -1); | |
95 | if (err < 0) | |
96 | return err; | |
97 | ||
98 | return amdtp_dot_add_pcm_hw_constraints(s, substream->runtime); | |
99 | } | |
100 | ||
101 | static int pcm_open(struct snd_pcm_substream *substream) | |
102 | { | |
103 | struct snd_dg00x *dg00x = substream->private_data; | |
104 | enum snd_dg00x_clock clock; | |
105 | bool detect; | |
106 | unsigned int rate; | |
107 | int err; | |
108 | ||
660dd3d5 TS |
109 | err = snd_dg00x_stream_lock_try(dg00x); |
110 | if (err < 0) | |
111 | goto end; | |
112 | ||
0120d0f1 TS |
113 | err = pcm_init_hw_params(dg00x, substream); |
114 | if (err < 0) | |
660dd3d5 | 115 | goto err_locked; |
0120d0f1 TS |
116 | |
117 | /* Check current clock source. */ | |
118 | err = snd_dg00x_stream_get_clock(dg00x, &clock); | |
119 | if (err < 0) | |
660dd3d5 | 120 | goto err_locked; |
0120d0f1 TS |
121 | if (clock != SND_DG00X_CLOCK_INTERNAL) { |
122 | err = snd_dg00x_stream_check_external_clock(dg00x, &detect); | |
123 | if (err < 0) | |
660dd3d5 | 124 | goto err_locked; |
0120d0f1 TS |
125 | if (!detect) { |
126 | err = -EBUSY; | |
660dd3d5 | 127 | goto err_locked; |
0120d0f1 TS |
128 | } |
129 | } | |
130 | ||
131 | if ((clock != SND_DG00X_CLOCK_INTERNAL) || | |
132 | amdtp_stream_pcm_running(&dg00x->rx_stream) || | |
133 | amdtp_stream_pcm_running(&dg00x->tx_stream)) { | |
134 | err = snd_dg00x_stream_get_external_rate(dg00x, &rate); | |
135 | if (err < 0) | |
660dd3d5 | 136 | goto err_locked; |
0120d0f1 TS |
137 | substream->runtime->hw.rate_min = rate; |
138 | substream->runtime->hw.rate_max = rate; | |
139 | } | |
140 | ||
141 | snd_pcm_set_sync(substream); | |
660dd3d5 TS |
142 | end: |
143 | return err; | |
144 | err_locked: | |
145 | snd_dg00x_stream_lock_release(dg00x); | |
0120d0f1 TS |
146 | return err; |
147 | } | |
148 | ||
149 | static int pcm_close(struct snd_pcm_substream *substream) | |
150 | { | |
660dd3d5 TS |
151 | struct snd_dg00x *dg00x = substream->private_data; |
152 | ||
153 | snd_dg00x_stream_lock_release(dg00x); | |
154 | ||
0120d0f1 TS |
155 | return 0; |
156 | } | |
157 | ||
158 | static int pcm_capture_hw_params(struct snd_pcm_substream *substream, | |
159 | struct snd_pcm_hw_params *hw_params) | |
160 | { | |
161 | struct snd_dg00x *dg00x = substream->private_data; | |
162 | int err; | |
163 | ||
164 | err = snd_pcm_lib_alloc_vmalloc_buffer(substream, | |
165 | params_buffer_bytes(hw_params)); | |
166 | if (err < 0) | |
167 | return err; | |
168 | ||
169 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { | |
170 | mutex_lock(&dg00x->mutex); | |
171 | dg00x->substreams_counter++; | |
172 | mutex_unlock(&dg00x->mutex); | |
173 | } | |
174 | ||
0120d0f1 TS |
175 | return 0; |
176 | } | |
177 | ||
178 | static int pcm_playback_hw_params(struct snd_pcm_substream *substream, | |
179 | struct snd_pcm_hw_params *hw_params) | |
180 | { | |
181 | struct snd_dg00x *dg00x = substream->private_data; | |
182 | int err; | |
183 | ||
184 | err = snd_pcm_lib_alloc_vmalloc_buffer(substream, | |
185 | params_buffer_bytes(hw_params)); | |
186 | if (err < 0) | |
187 | return err; | |
188 | ||
189 | if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { | |
190 | mutex_lock(&dg00x->mutex); | |
191 | dg00x->substreams_counter++; | |
192 | mutex_unlock(&dg00x->mutex); | |
193 | } | |
194 | ||
0120d0f1 TS |
195 | return 0; |
196 | } | |
197 | ||
198 | static int pcm_capture_hw_free(struct snd_pcm_substream *substream) | |
199 | { | |
200 | struct snd_dg00x *dg00x = substream->private_data; | |
201 | ||
202 | mutex_lock(&dg00x->mutex); | |
203 | ||
204 | if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) | |
205 | dg00x->substreams_counter--; | |
206 | ||
207 | snd_dg00x_stream_stop_duplex(dg00x); | |
208 | ||
209 | mutex_unlock(&dg00x->mutex); | |
210 | ||
211 | return snd_pcm_lib_free_vmalloc_buffer(substream); | |
212 | } | |
213 | ||
214 | static int pcm_playback_hw_free(struct snd_pcm_substream *substream) | |
215 | { | |
216 | struct snd_dg00x *dg00x = substream->private_data; | |
217 | ||
218 | mutex_lock(&dg00x->mutex); | |
219 | ||
220 | if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) | |
221 | dg00x->substreams_counter--; | |
222 | ||
223 | snd_dg00x_stream_stop_duplex(dg00x); | |
224 | ||
225 | mutex_unlock(&dg00x->mutex); | |
226 | ||
227 | return snd_pcm_lib_free_vmalloc_buffer(substream); | |
228 | } | |
229 | ||
230 | static int pcm_capture_prepare(struct snd_pcm_substream *substream) | |
231 | { | |
232 | struct snd_dg00x *dg00x = substream->private_data; | |
233 | struct snd_pcm_runtime *runtime = substream->runtime; | |
234 | int err; | |
235 | ||
236 | mutex_lock(&dg00x->mutex); | |
237 | ||
238 | err = snd_dg00x_stream_start_duplex(dg00x, runtime->rate); | |
239 | if (err >= 0) | |
240 | amdtp_stream_pcm_prepare(&dg00x->tx_stream); | |
241 | ||
242 | mutex_unlock(&dg00x->mutex); | |
243 | ||
244 | return err; | |
245 | } | |
246 | ||
247 | static int pcm_playback_prepare(struct snd_pcm_substream *substream) | |
248 | { | |
249 | struct snd_dg00x *dg00x = substream->private_data; | |
250 | struct snd_pcm_runtime *runtime = substream->runtime; | |
251 | int err; | |
252 | ||
253 | mutex_lock(&dg00x->mutex); | |
254 | ||
255 | err = snd_dg00x_stream_start_duplex(dg00x, runtime->rate); | |
256 | if (err >= 0) { | |
257 | amdtp_stream_pcm_prepare(&dg00x->rx_stream); | |
258 | amdtp_dot_reset(&dg00x->rx_stream); | |
259 | } | |
260 | ||
261 | mutex_unlock(&dg00x->mutex); | |
262 | ||
263 | return err; | |
264 | } | |
265 | ||
266 | static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) | |
267 | { | |
268 | struct snd_dg00x *dg00x = substream->private_data; | |
269 | ||
270 | switch (cmd) { | |
271 | case SNDRV_PCM_TRIGGER_START: | |
272 | amdtp_stream_pcm_trigger(&dg00x->tx_stream, substream); | |
273 | break; | |
274 | case SNDRV_PCM_TRIGGER_STOP: | |
275 | amdtp_stream_pcm_trigger(&dg00x->tx_stream, NULL); | |
276 | break; | |
277 | default: | |
278 | return -EINVAL; | |
279 | } | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
284 | static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) | |
285 | { | |
286 | struct snd_dg00x *dg00x = substream->private_data; | |
287 | ||
288 | switch (cmd) { | |
289 | case SNDRV_PCM_TRIGGER_START: | |
290 | amdtp_stream_pcm_trigger(&dg00x->rx_stream, substream); | |
291 | break; | |
292 | case SNDRV_PCM_TRIGGER_STOP: | |
293 | amdtp_stream_pcm_trigger(&dg00x->rx_stream, NULL); | |
294 | break; | |
295 | default: | |
296 | return -EINVAL; | |
297 | } | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstrm) | |
303 | { | |
304 | struct snd_dg00x *dg00x = sbstrm->private_data; | |
305 | ||
306 | return amdtp_stream_pcm_pointer(&dg00x->tx_stream); | |
307 | } | |
308 | ||
309 | static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm) | |
310 | { | |
311 | struct snd_dg00x *dg00x = sbstrm->private_data; | |
312 | ||
313 | return amdtp_stream_pcm_pointer(&dg00x->rx_stream); | |
314 | } | |
315 | ||
875becf8 TS |
316 | static int pcm_capture_ack(struct snd_pcm_substream *substream) |
317 | { | |
318 | struct snd_dg00x *dg00x = substream->private_data; | |
319 | ||
320 | return amdtp_stream_pcm_ack(&dg00x->tx_stream); | |
321 | } | |
322 | ||
323 | static int pcm_playback_ack(struct snd_pcm_substream *substream) | |
324 | { | |
325 | struct snd_dg00x *dg00x = substream->private_data; | |
326 | ||
327 | return amdtp_stream_pcm_ack(&dg00x->rx_stream); | |
328 | } | |
329 | ||
0120d0f1 TS |
330 | int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x) |
331 | { | |
a4e86cba TS |
332 | static const struct snd_pcm_ops capture_ops = { |
333 | .open = pcm_open, | |
334 | .close = pcm_close, | |
335 | .ioctl = snd_pcm_lib_ioctl, | |
336 | .hw_params = pcm_capture_hw_params, | |
337 | .hw_free = pcm_capture_hw_free, | |
338 | .prepare = pcm_capture_prepare, | |
339 | .trigger = pcm_capture_trigger, | |
340 | .pointer = pcm_capture_pointer, | |
875becf8 | 341 | .ack = pcm_capture_ack, |
a4e86cba TS |
342 | .page = snd_pcm_lib_get_vmalloc_page, |
343 | }; | |
344 | static const struct snd_pcm_ops playback_ops = { | |
345 | .open = pcm_open, | |
346 | .close = pcm_close, | |
347 | .ioctl = snd_pcm_lib_ioctl, | |
348 | .hw_params = pcm_playback_hw_params, | |
349 | .hw_free = pcm_playback_hw_free, | |
350 | .prepare = pcm_playback_prepare, | |
351 | .trigger = pcm_playback_trigger, | |
352 | .pointer = pcm_playback_pointer, | |
875becf8 | 353 | .ack = pcm_playback_ack, |
a4e86cba | 354 | .page = snd_pcm_lib_get_vmalloc_page, |
a4e86cba | 355 | }; |
0120d0f1 TS |
356 | struct snd_pcm *pcm; |
357 | int err; | |
358 | ||
359 | err = snd_pcm_new(dg00x->card, dg00x->card->driver, 0, 1, 1, &pcm); | |
360 | if (err < 0) | |
361 | return err; | |
362 | ||
363 | pcm->private_data = dg00x; | |
364 | snprintf(pcm->name, sizeof(pcm->name), | |
365 | "%s PCM", dg00x->card->shortname); | |
a4e86cba TS |
366 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops); |
367 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops); | |
0120d0f1 TS |
368 | |
369 | return 0; | |
370 | } |