soc-dapm.c (5c68005083d620b1499fc81926a514d39ae8b88c) soc-dapm.c (1c943f60e830d0b959c765df09d4c4b254de0481)
1// SPDX-License-Identifier: GPL-2.0+
2//
3// soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
4//
5// Copyright 2005 Wolfson Microelectronics PLC.
6// Author: Liam Girdwood <lrg@slimlogic.co.uk>
7//
8// Features:

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2211
2212 if (!dapm->debugfs_dapm || !w->name)
2213 return;
2214
2215 debugfs_create_file(w->name, 0444, dapm->debugfs_dapm, w,
2216 &dapm_widget_power_fops);
2217}
2218
1// SPDX-License-Identifier: GPL-2.0+
2//
3// soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
4//
5// Copyright 2005 Wolfson Microelectronics PLC.
6// Author: Liam Girdwood <lrg@slimlogic.co.uk>
7//
8// Features:

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2211
2212 if (!dapm->debugfs_dapm || !w->name)
2213 return;
2214
2215 debugfs_create_file(w->name, 0444, dapm->debugfs_dapm, w,
2216 &dapm_widget_power_fops);
2217}
2218
2219static void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w)
2220{
2221 struct snd_soc_dapm_context *dapm = w->dapm;
2222
2223 if (!dapm->debugfs_dapm || !w->name)
2224 return;
2225
2226 debugfs_lookup_and_remove(w->name, dapm->debugfs_dapm);
2227}
2228
2219static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
2220{
2221 debugfs_remove_recursive(dapm->debugfs_dapm);
2222 dapm->debugfs_dapm = NULL;
2223}
2224
2225#else
2226void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
2227 struct dentry *parent)
2228{
2229}
2230
2231static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
2232{
2233}
2234
2229static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
2230{
2231 debugfs_remove_recursive(dapm->debugfs_dapm);
2232 dapm->debugfs_dapm = NULL;
2233}
2234
2235#else
2236void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
2237 struct dentry *parent)
2238{
2239}
2240
2241static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
2242{
2243}
2244
2245static inline void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w)
2246{
2247}
2248
2235static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
2236{
2237}
2238
2239#endif
2240
2241/*
2242 * soc_dapm_connect_path() - Connects or disconnects a path

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2490 * While removing the path, remove reference to it from both
2491 * source and sink widgets so that path is removed only once.
2492 */
2493 snd_soc_dapm_for_each_direction(dir) {
2494 snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p)
2495 dapm_free_path(p);
2496 }
2497
2249static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
2250{
2251}
2252
2253#endif
2254
2255/*
2256 * soc_dapm_connect_path() - Connects or disconnects a path

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2504 * While removing the path, remove reference to it from both
2505 * source and sink widgets so that path is removed only once.
2506 */
2507 snd_soc_dapm_for_each_direction(dir) {
2508 snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p)
2509 dapm_free_path(p);
2510 }
2511
2512 dapm_debugfs_free_widget(w);
2513
2498 kfree(w->kcontrols);
2499 kfree_const(w->name);
2500 kfree_const(w->sname);
2501 kfree(w);
2502}
2503EXPORT_SYMBOL_GPL(snd_soc_dapm_free_widget);
2504
2505/* free all dapm widgets and resources */

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4317 if (dai) {
4318 snd_soc_dapm_add_path(dapm, src, dai, NULL, NULL);
4319 src = dai;
4320 }
4321
4322 snd_soc_dapm_add_path(dapm, src, sink, NULL, NULL);
4323}
4324
2514 kfree(w->kcontrols);
2515 kfree_const(w->name);
2516 kfree_const(w->sname);
2517 kfree(w);
2518}
2519EXPORT_SYMBOL_GPL(snd_soc_dapm_free_widget);
2520
2521/* free all dapm widgets and resources */

--- 1811 unchanged lines hidden (view full) ---

4333 if (dai) {
4334 snd_soc_dapm_add_path(dapm, src, dai, NULL, NULL);
4335 src = dai;
4336 }
4337
4338 snd_soc_dapm_add_path(dapm, src, sink, NULL, NULL);
4339}
4340
4325static int get_stream_cpu(struct snd_soc_dai_link *dai_link, int stream)
4326{
4327 /*
4328 * [Normal]
4329 *
4330 * Playback
4331 * CPU : SNDRV_PCM_STREAM_PLAYBACK
4332 * Codec: SNDRV_PCM_STREAM_PLAYBACK
4333 *
4334 * Playback
4335 * CPU : SNDRV_PCM_STREAM_CAPTURE
4336 * Codec: SNDRV_PCM_STREAM_CAPTURE
4337 */
4338 if (!dai_link->c2c_params)
4339 return stream;
4340
4341 /*
4342 * [Codec2Codec]
4343 *
4344 * Playback
4345 * CPU : SNDRV_PCM_STREAM_CAPTURE
4346 * Codec: SNDRV_PCM_STREAM_PLAYBACK
4347 *
4348 * Capture
4349 * CPU : SNDRV_PCM_STREAM_PLAYBACK
4350 * Codec: SNDRV_PCM_STREAM_CAPTURE
4351 */
4352 if (stream == SNDRV_PCM_STREAM_CAPTURE)
4353 return SNDRV_PCM_STREAM_PLAYBACK;
4354
4355 return SNDRV_PCM_STREAM_CAPTURE;
4356}
4357
4358static void dapm_connect_dai_pair(struct snd_soc_card *card,
4359 struct snd_soc_pcm_runtime *rtd,
4360 struct snd_soc_dai *codec_dai,
4361 struct snd_soc_dai *cpu_dai)
4362{
4363 struct snd_soc_dai_link *dai_link = rtd->dai_link;
4364 struct snd_soc_dapm_widget *codec, *cpu;
4365 struct snd_soc_dai *src_dai[] = { cpu_dai, codec_dai };
4366 struct snd_soc_dai *sink_dai[] = { codec_dai, cpu_dai };
4367 struct snd_soc_dapm_widget **src[] = { &cpu, &codec };
4368 struct snd_soc_dapm_widget **sink[] = { &codec, &cpu };
4369 char *widget_name[] = { "playback", "capture" };
4370 int stream;
4371
4372 for_each_pcm_streams(stream) {
4373 int stream_cpu, stream_codec;
4374
4341static void dapm_connect_dai_pair(struct snd_soc_card *card,
4342 struct snd_soc_pcm_runtime *rtd,
4343 struct snd_soc_dai *codec_dai,
4344 struct snd_soc_dai *cpu_dai)
4345{
4346 struct snd_soc_dai_link *dai_link = rtd->dai_link;
4347 struct snd_soc_dapm_widget *codec, *cpu;
4348 struct snd_soc_dai *src_dai[] = { cpu_dai, codec_dai };
4349 struct snd_soc_dai *sink_dai[] = { codec_dai, cpu_dai };
4350 struct snd_soc_dapm_widget **src[] = { &cpu, &codec };
4351 struct snd_soc_dapm_widget **sink[] = { &codec, &cpu };
4352 char *widget_name[] = { "playback", "capture" };
4353 int stream;
4354
4355 for_each_pcm_streams(stream) {
4356 int stream_cpu, stream_codec;
4357
4375 stream_cpu = get_stream_cpu(dai_link, stream);
4358 stream_cpu = snd_soc_get_stream_cpu(dai_link, stream);
4376 stream_codec = stream;
4377
4378 /* connect BE DAI playback if widgets are valid */
4379 cpu = snd_soc_dai_get_widget(cpu_dai, stream_cpu);
4380 codec = snd_soc_dai_get_widget(codec_dai, stream_codec);
4381
4382 if (!cpu || !codec)
4383 continue;

--- 496 unchanged lines hidden --- 		4359 stream_codec = stream;
4360
4361 /* connect BE DAI playback if widgets are valid */
4362 cpu = snd_soc_dai_get_widget(cpu_dai, stream_cpu);
4363 codec = snd_soc_dai_get_widget(codec_dai, stream_codec);
4364
4365 if (!cpu || !codec)
4366 continue;

--- 496 unchanged lines hidden ---