sound/soc/soc-pcm.c

25 #include <sound/soc-dpcm.h>
113 	struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params;
114 	struct snd_soc_dpcm *dpcm;
123 			   dpcm_state_string(fe->dpcm[stream].state));
125 	if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&
126 	    (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))
137 	if (list_empty(&fe->dpcm[stream].be_clients)) {
143 	for_each_dpcm_be(fe, stream, dpcm) {
144 		struct snd_soc_pcm_runtime *be = dpcm->be;
145 		params = &be->dpcm[stream].hw_params;
152 				   dpcm_state_string(be->dpcm[stream].state));
154 		if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&
155 		    (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))
220 static void dpcm_create_debugfs_state(struct snd_soc_dpcm *dpcm, int stream)
224 	name = kasprintf(GFP_KERNEL, "%s:%s", dpcm->be->dai_link->name,
227 		dpcm->debugfs_state = debugfs_create_dir(
228 			name, dpcm->fe->debugfs_dpcm_root);
229 		debugfs_create_u32("state", 0644, dpcm->debugfs_state,
230 				   &dpcm->state);
235 static void dpcm_remove_debugfs_state(struct snd_soc_dpcm *dpcm)
237 	debugfs_remove_recursive(dpcm->debugfs_state);
241 static inline void dpcm_create_debugfs_state(struct snd_soc_dpcm *dpcm,
246 static inline void dpcm_remove_debugfs_state(struct snd_soc_dpcm *dpcm)
264 	if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) {
266 				       fe->dpcm[stream].trigger_pending - 1);
267 		fe->dpcm[stream].trigger_pending = 0;
269 	fe->dpcm[stream].runtime_update = state;
276 	be->dpcm[stream].runtime_update = state;
358 	struct snd_soc_dpcm *dpcm;
362 	for_each_dpcm_be(fe, dir, dpcm) {
364 		struct snd_soc_pcm_runtime *be = dpcm->be;
370 		    (be->dpcm[dir].users >= 1))
1245 	struct snd_soc_dpcm *dpcm;
1250 	for_each_dpcm_be(fe, stream, dpcm) {
1251 		if (dpcm->be == be && dpcm->fe == fe)
1268 	dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL);
1269 	if (!dpcm)
1272 	dpcm->be = be;
1273 	dpcm->fe = fe;
1274 	dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW;
1276 	list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients);
1277 	list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients);
1284 	dpcm_create_debugfs_state(dpcm, stream);
1293 	struct snd_soc_dpcm *dpcm;
1297 	if (!be->dpcm[stream].users)
1304 	for_each_dpcm_fe(be, stream, dpcm) {
1305 		if (dpcm->fe == fe)
1310 			dpcm->fe->dai_link->name,
1311 			stream ? "<-" : "->", dpcm->be->dai_link->name);
1313 		fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream);
1322 	struct snd_soc_dpcm *dpcm, *d;
1328 	for_each_dpcm_be_safe(fe, stream, dpcm, d) {
1331 				dpcm->be->dai_link->name);
1333 		if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE)
1338 			stream ? "<-" : "->", dpcm->be->dai_link->name);
1341 		dpcm_be_reparent(fe, dpcm->be, stream);
1343 		list_del(&dpcm->list_be);
1344 		list_move(&dpcm->list_fe, &deleted_dpcms);
1349 		dpcm = list_first_entry(&deleted_dpcms, struct snd_soc_dpcm,
1351 		list_del(&dpcm->list_fe);
1352 		dpcm_remove_debugfs_state(dpcm);
1353 		kfree(dpcm);
1457 static bool dpcm_be_is_active(struct snd_soc_dpcm *dpcm, int stream,
1464 	for_each_rtd_dais(dpcm->be, i, dai) {
1481 	struct snd_soc_dpcm *dpcm;
1485 	for_each_dpcm_be(fe, stream, dpcm) {
1486 		if (dpcm_be_is_active(dpcm, stream, *list_))
1491 			dpcm->be->dai_link->name, fe->dai_link->name);
1492 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
1493 		dpcm_set_be_update_state(dpcm->be, stream, SND_SOC_DPCM_UPDATE_BE);
1545 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) &&
1546 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))
1582 	struct snd_soc_dpcm *dpcm;
1584 	for_each_dpcm_be(fe, stream, dpcm)
1585 		dpcm_set_be_update_state(dpcm->be, stream, SND_SOC_DPCM_UPDATE_NO);
1591 	struct snd_soc_dpcm *dpcm;
1594 	for_each_dpcm_be(fe, stream, dpcm) {
1595 		struct snd_soc_pcm_runtime *be = dpcm->be;
1599 		if (dpcm == last)
1606 		if (be->dpcm[stream].users == 0) {
1609 				be->dpcm[stream].state);
1613 		if (--be->dpcm[stream].users != 0)
1616 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) {
1620 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) {
1622 				be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE;
1628 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
1636 	struct snd_soc_dpcm *dpcm;
1640 	for_each_dpcm_be(fe, stream, dpcm) {
1643 		be = dpcm->be;
1656 		/* first time the dpcm is open ? */
1657 		if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) {
1660 				be->dpcm[stream].state);
1664 		if (be->dpcm[stream].users++ != 0)
1667 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) &&
1668 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))
1677 			be->dpcm[stream].users--;
1678 			if (be->dpcm[stream].users < 0)
1681 					be->dpcm[stream].state);
1683 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
1686 		be->dpcm[stream].be_start = 0;
1687 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
1694 	dpcm_be_dai_startup_rollback(fe, stream, dpcm);
1739 	struct snd_soc_dpcm *dpcm;
1751 	for_each_dpcm_be(fe, stream, dpcm) {
1752 		struct snd_soc_pcm_runtime *be = dpcm->be;
1777 	struct snd_soc_dpcm *dpcm;
1788 	for_each_dpcm_be(fe, stream, dpcm) {
1789 		struct snd_soc_pcm_runtime *be = dpcm->be;
1825 	struct snd_soc_dpcm *dpcm;
1836 	for_each_dpcm_be(fe, stream, dpcm) {
1837 		struct snd_soc_pcm_runtime *be = dpcm->be;
1860 	struct snd_soc_dpcm *dpcm;
1877 	for_each_dpcm_be(fe, stream, dpcm) {
1878 		struct snd_soc_pcm_runtime *be = dpcm->be;
1923 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
1962 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
1969 	struct snd_soc_dpcm *dpcm;
1973 	for_each_dpcm_be(fe, stream, dpcm) {
1975 		struct snd_soc_pcm_runtime *be = dpcm->be;
1988 		if (be->dpcm[stream].users > 1)
1991 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
1992 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
1993 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
1994 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&
1995 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
1996 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
2004 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE;
2025 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE;
2036 	struct snd_soc_dpcm *dpcm;
2039 	for_each_dpcm_be(fe, stream, dpcm) {
2042 		be = dpcm->be;
2049 		/* copy params for each dpcm */
2050 		memcpy(&hw_params, &fe->dpcm[stream].hw_params,
2059 		memcpy(&be->dpcm[stream].hw_params, &hw_params,
2066 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&
2067 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
2068 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE))
2078 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS;
2087 	for_each_dpcm_be_rollback(fe, stream, dpcm) {
2088 		be = dpcm->be;
2098 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&
2099 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
2100 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
2101 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))
2119 	memcpy(&fe->dpcm[stream].hw_params, params,
2134 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS;
2148 	struct snd_soc_dpcm *dpcm;
2152 	for_each_dpcm_be(fe, stream, dpcm) {
2155 		be = dpcm->be;
2169 			if (!be->dpcm[stream].be_start &&
2170 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
2171 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
2172 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
2175 			be->dpcm[stream].be_start++;
2176 			if (be->dpcm[stream].be_start != 1)
2179 			if (be->dpcm[stream].state == SND_SOC_DPCM_STATE_PAUSED)
2186 				be->dpcm[stream].be_start--;
2190 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
2193 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
2196 			be->dpcm[stream].be_start++;
2197 			if (be->dpcm[stream].be_start != 1)
2202 				be->dpcm[stream].be_start--;
2206 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
2209 			if (!be->dpcm[stream].be_start &&
2210 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) &&
2211 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
2214 			fe->dpcm[stream].fe_pause = false;
2215 			be->dpcm[stream].be_pause--;
2217 			be->dpcm[stream].be_start++;
2218 			if (be->dpcm[stream].be_start != 1)
2223 				be->dpcm[stream].be_start--;
2227 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
2230 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) &&
2231 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
2234 			if (be->dpcm[stream].state == SND_SOC_DPCM_STATE_START)
2235 				be->dpcm[stream].be_start--;
2237 			if (be->dpcm[stream].be_start != 0)
2241 			if (fe->dpcm[stream].fe_pause) {
2243 				fe->dpcm[stream].fe_pause = false;
2244 				be->dpcm[stream].be_pause--;
2247 			if (be->dpcm[stream].be_pause != 0)
2253 				if (be->dpcm[stream].state == SND_SOC_DPCM_STATE_START)
2254 					be->dpcm[stream].be_start++;
2256 					fe->dpcm[stream].fe_pause = true;
2257 					be->dpcm[stream].be_pause++;
2262 			if (be->dpcm[stream].be_pause != 0)
2263 				be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
2265 				be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
2269 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)
2272 			be->dpcm[stream].be_start--;
2273 			if (be->dpcm[stream].be_start != 0)
2278 				be->dpcm[stream].be_start++;
2282 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND;
2285 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)
2288 			fe->dpcm[stream].fe_pause = true;
2289 			be->dpcm[stream].be_pause++;
2291 			be->dpcm[stream].be_start--;
2292 			if (be->dpcm[stream].be_start != 0)
2297 				be->dpcm[stream].be_start++;
2301 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
2352 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
2416 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
2420 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
2423 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
2428 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
2440 	if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) {
2441 		fe->dpcm[stream].trigger_pending = cmd + 1;
2451 	struct snd_soc_dpcm *dpcm;
2454 	for_each_dpcm_be(fe, stream, dpcm) {
2456 		struct snd_soc_pcm_runtime *be = dpcm->be;
2467 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
2468 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
2469 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) &&
2470 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
2480 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
2498 	if (list_empty(&fe->dpcm[stream].be_clients)) {
2517 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
2563 	struct snd_soc_dpcm *dpcm;
2571 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE ||
2572 		fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) {
2574 			fe->dai_link->name, fe->dpcm[stream].state);
2585 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN)
2593 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS)
2604 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE ||
2605 		fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP)
2634 	for_each_dpcm_be(fe, stream, dpcm) {
2635 		struct snd_soc_pcm_runtime *be = dpcm->be;
2641 		if (be->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE ||
2642 			be->dpcm[stream].state == SND_SOC_DPCM_STATE_NEW)
2643 				dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
2740 	struct snd_soc_dpcm *dpcm;
2746 	for_each_dpcm_be(fe, stream, dpcm)
2747 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
3022 	if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE)
3032 	if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) ||
3033 	   ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) &&
3034 		  be->dpcm[stream].runtime_update))
3054 	struct snd_soc_dpcm *dpcm;
3059 	for_each_dpcm_fe(be, stream, dpcm) {
3061 		if (dpcm->fe == fe)
3064 		state = dpcm->fe->dpcm[stream].state;