179 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_dapm_stream_event()  local
181 		dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n",  in dpcm_dapm_stream_event()
182 				be->dai_link->name, event, dir);  in dpcm_dapm_stream_event()
184 		snd_soc_dapm_stream_event(be, dir, event);  in dpcm_dapm_stream_event()
1121 		struct snd_soc_pcm_runtime *be, int stream)  in dpcm_be_connect()  argument
1127 		if (dpcm->be == be && dpcm->fe == fe)  in dpcm_be_connect()
1135 	dpcm->be = be;  in dpcm_be_connect()
1137 	be->dpcm[stream].runtime = fe->dpcm[stream].runtime;  in dpcm_be_connect()
1140 	list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients);  in dpcm_be_connect()
1144 			stream ? "<-" : "->", be->dai_link->name);  in dpcm_be_connect()
1148 		dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644,  in dpcm_be_connect()
1156 			struct snd_soc_pcm_runtime *be, int stream)  in dpcm_be_reparent()  argument
1162 	if (!be->dpcm[stream].users)  in dpcm_be_reparent()
1165 	be_substream = snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_reparent()
1167 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in dpcm_be_reparent()
1174 			stream ? "<-" : "->", dpcm->be->dai_link->name);  in dpcm_be_reparent()
1190 				dpcm->be->dai_link->name);  in dpcm_be_disconnect()
1197 			stream ? "<-" : "->", dpcm->be->dai_link->name);  in dpcm_be_disconnect()
1200 		dpcm_be_reparent(fe, dpcm->be, stream);  in dpcm_be_disconnect()
1215 	struct snd_soc_pcm_runtime *be;  in dpcm_get_be()  local
1220 			be = &card->rtd[i];  in dpcm_get_be()
1222 			if (!be->dai_link->no_pcm)  in dpcm_get_be()
1225 			if (be->cpu_dai->playback_widget == widget)  in dpcm_get_be()
1226 				return be;  in dpcm_get_be()
1228 			for (j = 0; j < be->num_codecs; j++) {  in dpcm_get_be()
1229 				struct snd_soc_dai *dai = be->codec_dais[j];  in dpcm_get_be()
1231 					return be;  in dpcm_get_be()
1237 			be = &card->rtd[i];  in dpcm_get_be()
1239 			if (!be->dai_link->no_pcm)  in dpcm_get_be()
1242 			if (be->cpu_dai->capture_widget == widget)  in dpcm_get_be()
1243 				return be;  in dpcm_get_be()
1245 			for (j = 0; j < be->num_codecs; j++) {  in dpcm_get_be()
1246 				struct snd_soc_dai *dai = be->codec_dais[j];  in dpcm_get_be()
1248 					return be;  in dpcm_get_be()
1308 		widget = dai_get_widget(dpcm->be->cpu_dai, stream);  in dpcm_prune_paths()
1315 		for (i = 0; i < dpcm->be->num_codecs; i++) {  in dpcm_prune_paths()
1316 			struct snd_soc_dai *dai = dpcm->be->codec_dais[i];  in dpcm_prune_paths()
1326 			dpcm->be->dai_link->name, fe->dai_link->name);  in dpcm_prune_paths()
1328 		dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;  in dpcm_prune_paths()
1341 	struct snd_soc_pcm_runtime *be;  in dpcm_add_paths()  local
1361 		be = dpcm_get_be(card, list->widgets[i], stream);  in dpcm_add_paths()
1362 		if (!be) {  in dpcm_add_paths()
1369 		if (!be->dai_link->no_pcm)  in dpcm_add_paths()
1377 		err = dpcm_be_connect(fe, be, stream);  in dpcm_add_paths()
1386 		be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;  in dpcm_add_paths()
1412 		dpcm->be->dpcm[stream].runtime_update =  in dpcm_clear_pending_state()
1424 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup_unwind()  local
1426 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup_unwind()
1428 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_startup_unwind()
1429 			dev_err(be->dev, "ASoC: no users %s at close - state %d\n",  in dpcm_be_dai_startup_unwind()
1431 				be->dpcm[stream].state);  in dpcm_be_dai_startup_unwind()
1433 		if (--be->dpcm[stream].users != 0)  in dpcm_be_dai_startup_unwind()
1436 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)  in dpcm_be_dai_startup_unwind()
1441 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup_unwind()
1453 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup()  local
1455 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup()
1458 			dev_err(be->dev, "ASoC: no backend %s stream\n",  in dpcm_be_dai_startup()
1464 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_startup()
1468 		if (be->dpcm[stream].users == DPCM_MAX_BE_USERS)  in dpcm_be_dai_startup()
1469 			dev_err(be->dev, "ASoC: too many users %s at open %d\n",  in dpcm_be_dai_startup()
1471 				be->dpcm[stream].state);  in dpcm_be_dai_startup()
1473 		if (be->dpcm[stream].users++ != 0)  in dpcm_be_dai_startup()
1476 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) &&  in dpcm_be_dai_startup()
1477 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))  in dpcm_be_dai_startup()
1480 		dev_dbg(be->dev, "ASoC: open %s BE %s\n",  in dpcm_be_dai_startup()
1481 			stream ? "capture" : "playback", be->dai_link->name);  in dpcm_be_dai_startup()
1483 		be_substream->runtime = be->dpcm[stream].runtime;  in dpcm_be_dai_startup()
1486 			dev_err(be->dev, "ASoC: BE open failed %d\n", err);  in dpcm_be_dai_startup()
1487 			be->dpcm[stream].users--;  in dpcm_be_dai_startup()
1488 			if (be->dpcm[stream].users < 0)  in dpcm_be_dai_startup()
1489 				dev_err(be->dev, "ASoC: no users %s at unwind %d\n",  in dpcm_be_dai_startup()
1491 					be->dpcm[stream].state);  in dpcm_be_dai_startup()
1493 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup()
1497 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;  in dpcm_be_dai_startup()
1506 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup()  local
1508 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup()
1510 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_startup()
1513 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_startup()
1514 			dev_err(be->dev, "ASoC: no users %s at close %d\n",  in dpcm_be_dai_startup()
1516 				be->dpcm[stream].state);  in dpcm_be_dai_startup()
1518 		if (--be->dpcm[stream].users != 0)  in dpcm_be_dai_startup()
1521 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)  in dpcm_be_dai_startup()
1526 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup()
1563 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_runtime_base_format()  local
1568 		for (i = 0; i < be->num_codecs; i++) {  in dpcm_runtime_base_format()
1569 			codec_dai_drv = be->codec_dais[i]->driver;  in dpcm_runtime_base_format()
1664 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_shutdown()  local
1666 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_shutdown()
1669 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_shutdown()
1672 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_shutdown()
1673 			dev_err(be->dev, "ASoC: no users %s at close - state %d\n",  in dpcm_be_dai_shutdown()
1675 				be->dpcm[stream].state);  in dpcm_be_dai_shutdown()
1677 		if (--be->dpcm[stream].users != 0)  in dpcm_be_dai_shutdown()
1680 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_shutdown()
1681 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN))  in dpcm_be_dai_shutdown()
1684 		dev_dbg(be->dev, "ASoC: close BE %s\n",  in dpcm_be_dai_shutdown()
1690 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_shutdown()
1726 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_free()  local
1728 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_free()
1731 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_free()
1735 		if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_hw_free()
1739 		if (be->dpcm[stream].users > 1)  in dpcm_be_dai_hw_free()
1742 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_free()
1743 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&  in dpcm_be_dai_hw_free()
1744 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_hw_free()
1745 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&  in dpcm_be_dai_hw_free()
1746 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&  in dpcm_be_dai_hw_free()
1747 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))  in dpcm_be_dai_hw_free()
1750 		dev_dbg(be->dev, "ASoC: hw_free BE %s\n",  in dpcm_be_dai_hw_free()
1755 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE;  in dpcm_be_dai_hw_free()
1795 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_params()  local
1797 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_params()
1800 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_params()
1804 		if (!snd_soc_dpcm_can_be_params(fe, be, stream))  in dpcm_be_dai_hw_params()
1807 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&  in dpcm_be_dai_hw_params()
1808 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_params()
1809 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE))  in dpcm_be_dai_hw_params()
1812 		dev_dbg(be->dev, "ASoC: hw_params BE %s\n",  in dpcm_be_dai_hw_params()
1820 		if (be->dai_link->be_hw_params_fixup) {  in dpcm_be_dai_hw_params()
1821 			ret = be->dai_link->be_hw_params_fixup(be,  in dpcm_be_dai_hw_params()
1824 				dev_err(be->dev,  in dpcm_be_dai_hw_params()
1833 			dev_err(dpcm->be->dev,  in dpcm_be_dai_hw_params()
1838 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS;  in dpcm_be_dai_hw_params()
1845 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_params()  local
1847 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_params()
1849 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_params()
1853 		if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_hw_params()
1856 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&  in dpcm_be_dai_hw_params()
1857 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_params()
1858 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_hw_params()
1859 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_hw_params()
1908 	dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n",  in dpcm_do_trigger()
1913 		dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret);  in dpcm_do_trigger()
1926 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_trigger()  local
1928 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_trigger()
1931 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_trigger()
1936 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&  in dpcm_be_dai_trigger()
1937 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_trigger()
1944 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1947 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))  in dpcm_be_dai_trigger()
1954 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1957 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))  in dpcm_be_dai_trigger()
1964 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1967 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1970 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
1977 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;  in dpcm_be_dai_trigger()
1980 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1983 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
1990 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND;  in dpcm_be_dai_trigger()
1993 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1996 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
2003 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;  in dpcm_be_dai_trigger()
2110 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_prepare()  local
2112 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_prepare()
2115 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_prepare()
2118 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_prepare()
2119 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_prepare()
2122 		dev_dbg(be->dev, "ASoC: prepare BE %s\n",  in dpcm_be_dai_prepare()
2127 			dev_err(be->dev, "ASoC: backend prepare failed %d\n",  in dpcm_be_dai_prepare()
2132 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;  in dpcm_be_dai_prepare()
2308 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_run_update_startup()  local
2309 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_run_update_startup()
2450 		struct snd_soc_pcm_runtime *be = dpcm->be;  in soc_dpcm_be_digital_mute()  local
2453 		if (be->dai_link->ignore_suspend)  in soc_dpcm_be_digital_mute()
2456 		for (i = 0; i < be->num_codecs; i++) {  in soc_dpcm_be_digital_mute()
2457 			struct snd_soc_dai *dai = be->codec_dais[i];  in soc_dpcm_be_digital_mute()
2460 			dev_dbg(be->dev, "ASoC: BE digital mute %s\n",  in soc_dpcm_be_digital_mute()
2461 					 be->dai_link->name);  in soc_dpcm_be_digital_mute()
2674 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_be_can_update()  argument
2678 		  be->dpcm[stream].runtime_update))  in snd_soc_dpcm_be_can_update()
2686 	snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_get_substream()  argument
2688 	return be->pcm->streams[stream].substream;  in snd_soc_dpcm_get_substream()
2694 	snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_be_get_state()  argument
2696 	return be->dpcm[stream].state;  in snd_soc_dpcm_be_get_state()
2701 void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be,  in snd_soc_dpcm_be_set_state()  argument
2704 	be->dpcm[stream].state = state;  in snd_soc_dpcm_be_set_state()
2713 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_can_be_free_stop()  argument
2718 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in snd_soc_dpcm_can_be_free_stop()
2740 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_can_be_params()  argument
2745 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in snd_soc_dpcm_can_be_params()
2835 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_show_state()  local
2839 				"- %s\n", be->dai_link->name);  in dpcm_show_state()
2843 				dpcm_state_string(be->dpcm[stream].state));  in dpcm_show_state()
2845 		if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_show_state()
2846 		    (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))  in dpcm_show_state()