161 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_dapm_stream_event()  local
163 		dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n",  in dpcm_dapm_stream_event()
164 				be->dai_link->name, event, dir);  in dpcm_dapm_stream_event()
166 		snd_soc_dapm_stream_event(be, dir, event);  in dpcm_dapm_stream_event()
1074 		struct snd_soc_pcm_runtime *be, int stream)  in dpcm_be_connect()  argument
1080 		if (dpcm->be == be && dpcm->fe == fe)  in dpcm_be_connect()
1088 	dpcm->be = be;  in dpcm_be_connect()
1090 	be->dpcm[stream].runtime = fe->dpcm[stream].runtime;  in dpcm_be_connect()
1093 	list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients);  in dpcm_be_connect()
1097 			stream ? "<-" : "->", be->dai_link->name);  in dpcm_be_connect()
1101 		dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644,  in dpcm_be_connect()
1109 			struct snd_soc_pcm_runtime *be, int stream)  in dpcm_be_reparent()  argument
1115 	if (!be->dpcm[stream].users)  in dpcm_be_reparent()
1118 	be_substream = snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_reparent()
1120 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in dpcm_be_reparent()
1127 			stream ? "<-" : "->", dpcm->be->dai_link->name);  in dpcm_be_reparent()
1143 				dpcm->be->dai_link->name);  in dpcm_be_disconnect()
1150 			stream ? "<-" : "->", dpcm->be->dai_link->name);  in dpcm_be_disconnect()
1153 		dpcm_be_reparent(fe, dpcm->be, stream);  in dpcm_be_disconnect()
1168 	struct snd_soc_pcm_runtime *be;  in dpcm_get_be()  local
1173 			be = &card->rtd[i];  in dpcm_get_be()
1175 			if (!be->dai_link->no_pcm)  in dpcm_get_be()
1178 			if (be->cpu_dai->playback_widget == widget)  in dpcm_get_be()
1179 				return be;  in dpcm_get_be()
1181 			for (j = 0; j < be->num_codecs; j++) {  in dpcm_get_be()
1182 				struct snd_soc_dai *dai = be->codec_dais[j];  in dpcm_get_be()
1184 					return be;  in dpcm_get_be()
1190 			be = &card->rtd[i];  in dpcm_get_be()
1192 			if (!be->dai_link->no_pcm)  in dpcm_get_be()
1195 			if (be->cpu_dai->capture_widget == widget)  in dpcm_get_be()
1196 				return be;  in dpcm_get_be()
1198 			for (j = 0; j < be->num_codecs; j++) {  in dpcm_get_be()
1199 				struct snd_soc_dai *dai = be->codec_dais[j];  in dpcm_get_be()
1201 					return be;  in dpcm_get_be()
1268 		widget = dai_get_widget(dpcm->be->cpu_dai, stream);  in dpcm_prune_paths()
1275 		for (i = 0; i < dpcm->be->num_codecs; i++) {  in dpcm_prune_paths()
1276 			struct snd_soc_dai *dai = dpcm->be->codec_dais[i];  in dpcm_prune_paths()
1286 			dpcm->be->dai_link->name, fe->dai_link->name);  in dpcm_prune_paths()
1288 		dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;  in dpcm_prune_paths()
1301 	struct snd_soc_pcm_runtime *be;  in dpcm_add_paths()  local
1316 		be = dpcm_get_be(card, list->widgets[i], stream);  in dpcm_add_paths()
1317 		if (!be) {  in dpcm_add_paths()
1324 		if (!be->dai_link->no_pcm)  in dpcm_add_paths()
1332 		err = dpcm_be_connect(fe, be, stream);  in dpcm_add_paths()
1341 		be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;  in dpcm_add_paths()
1367 		dpcm->be->dpcm[stream].runtime_update =  in dpcm_clear_pending_state()
1379 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup_unwind()  local
1381 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup_unwind()
1383 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_startup_unwind()
1384 			dev_err(be->dev, "ASoC: no users %s at close - state %d\n",  in dpcm_be_dai_startup_unwind()
1386 				be->dpcm[stream].state);  in dpcm_be_dai_startup_unwind()
1388 		if (--be->dpcm[stream].users != 0)  in dpcm_be_dai_startup_unwind()
1391 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)  in dpcm_be_dai_startup_unwind()
1396 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup_unwind()
1408 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup()  local
1410 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup()
1413 			dev_err(be->dev, "ASoC: no backend %s stream\n",  in dpcm_be_dai_startup()
1419 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_startup()
1423 		if (be->dpcm[stream].users == DPCM_MAX_BE_USERS)  in dpcm_be_dai_startup()
1424 			dev_err(be->dev, "ASoC: too many users %s at open %d\n",  in dpcm_be_dai_startup()
1426 				be->dpcm[stream].state);  in dpcm_be_dai_startup()
1428 		if (be->dpcm[stream].users++ != 0)  in dpcm_be_dai_startup()
1431 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) &&  in dpcm_be_dai_startup()
1432 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))  in dpcm_be_dai_startup()
1435 		dev_dbg(be->dev, "ASoC: open %s BE %s\n",  in dpcm_be_dai_startup()
1436 			stream ? "capture" : "playback", be->dai_link->name);  in dpcm_be_dai_startup()
1438 		be_substream->runtime = be->dpcm[stream].runtime;  in dpcm_be_dai_startup()
1441 			dev_err(be->dev, "ASoC: BE open failed %d\n", err);  in dpcm_be_dai_startup()
1442 			be->dpcm[stream].users--;  in dpcm_be_dai_startup()
1443 			if (be->dpcm[stream].users < 0)  in dpcm_be_dai_startup()
1444 				dev_err(be->dev, "ASoC: no users %s at unwind %d\n",  in dpcm_be_dai_startup()
1446 					be->dpcm[stream].state);  in dpcm_be_dai_startup()
1448 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup()
1452 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;  in dpcm_be_dai_startup()
1461 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_startup()  local
1463 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_startup()
1465 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_startup()
1468 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_startup()
1469 			dev_err(be->dev, "ASoC: no users %s at close %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_OPEN)  in dpcm_be_dai_startup()
1481 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_startup()
1582 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_shutdown()  local
1584 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_shutdown()
1587 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_shutdown()
1590 		if (be->dpcm[stream].users == 0)  in dpcm_be_dai_shutdown()
1591 			dev_err(be->dev, "ASoC: no users %s at close - state %d\n",  in dpcm_be_dai_shutdown()
1593 				be->dpcm[stream].state);  in dpcm_be_dai_shutdown()
1595 		if (--be->dpcm[stream].users != 0)  in dpcm_be_dai_shutdown()
1598 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_shutdown()
1599 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN))  in dpcm_be_dai_shutdown()
1602 		dev_dbg(be->dev, "ASoC: close BE %s\n",  in dpcm_be_dai_shutdown()
1608 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in dpcm_be_dai_shutdown()
1644 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_free()  local
1646 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_free()
1649 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_free()
1653 		if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_hw_free()
1657 		if (be->dpcm[stream].users > 1)  in dpcm_be_dai_hw_free()
1660 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_free()
1661 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&  in dpcm_be_dai_hw_free()
1662 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_hw_free()
1663 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&  in dpcm_be_dai_hw_free()
1664 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&  in dpcm_be_dai_hw_free()
1665 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))  in dpcm_be_dai_hw_free()
1668 		dev_dbg(be->dev, "ASoC: hw_free BE %s\n",  in dpcm_be_dai_hw_free()
1673 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE;  in dpcm_be_dai_hw_free()
1713 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_params()  local
1715 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_params()
1718 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_params()
1722 		if (!snd_soc_dpcm_can_be_params(fe, be, stream))  in dpcm_be_dai_hw_params()
1725 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&  in dpcm_be_dai_hw_params()
1726 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_params()
1727 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE))  in dpcm_be_dai_hw_params()
1730 		dev_dbg(be->dev, "ASoC: hw_params BE %s\n",  in dpcm_be_dai_hw_params()
1738 		if (be->dai_link->be_hw_params_fixup) {  in dpcm_be_dai_hw_params()
1739 			ret = be->dai_link->be_hw_params_fixup(be,  in dpcm_be_dai_hw_params()
1742 				dev_err(be->dev,  in dpcm_be_dai_hw_params()
1751 			dev_err(dpcm->be->dev,  in dpcm_be_dai_hw_params()
1756 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS;  in dpcm_be_dai_hw_params()
1763 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_hw_params()  local
1765 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_hw_params()
1767 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_hw_params()
1771 		if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_hw_params()
1774 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&  in dpcm_be_dai_hw_params()
1775 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_hw_params()
1776 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&  in dpcm_be_dai_hw_params()
1777 		   (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_hw_params()
1826 	dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n",  in dpcm_do_trigger()
1831 		dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret);  in dpcm_do_trigger()
1844 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_trigger()  local
1846 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_trigger()
1849 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_trigger()
1854 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&  in dpcm_be_dai_trigger()
1855 			    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_trigger()
1862 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1865 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))  in dpcm_be_dai_trigger()
1872 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1875 			if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))  in dpcm_be_dai_trigger()
1882 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in dpcm_be_dai_trigger()
1885 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1888 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
1895 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;  in dpcm_be_dai_trigger()
1898 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1901 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
1908 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND;  in dpcm_be_dai_trigger()
1911 			if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_be_dai_trigger()
1914 			if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream))  in dpcm_be_dai_trigger()
1921 			be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;  in dpcm_be_dai_trigger()
2028 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_be_dai_prepare()  local
2030 			snd_soc_dpcm_get_substream(be, stream);  in dpcm_be_dai_prepare()
2033 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))  in dpcm_be_dai_prepare()
2036 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_be_dai_prepare()
2037 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))  in dpcm_be_dai_prepare()
2040 		dev_dbg(be->dev, "ASoC: prepare BE %s\n",  in dpcm_be_dai_prepare()
2045 			dev_err(be->dev, "ASoC: backend prepare failed %d\n",  in dpcm_be_dai_prepare()
2050 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;  in dpcm_be_dai_prepare()
2226 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_run_update_startup()  local
2227 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)  in dpcm_run_update_startup()
2368 		struct snd_soc_pcm_runtime *be = dpcm->be;  in soc_dpcm_be_digital_mute()  local
2371 		if (be->dai_link->ignore_suspend)  in soc_dpcm_be_digital_mute()
2374 		for (i = 0; i < be->num_codecs; i++) {  in soc_dpcm_be_digital_mute()
2375 			struct snd_soc_dai *dai = be->codec_dais[i];  in soc_dpcm_be_digital_mute()
2378 			dev_dbg(be->dev, "ASoC: BE digital mute %s\n",  in soc_dpcm_be_digital_mute()
2379 					 be->dai_link->name);  in soc_dpcm_be_digital_mute()
2592 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_be_can_update()  argument
2596 		  be->dpcm[stream].runtime_update))  in snd_soc_dpcm_be_can_update()
2604 	snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_get_substream()  argument
2606 	return be->pcm->streams[stream].substream;  in snd_soc_dpcm_get_substream()
2612 	snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_be_get_state()  argument
2614 	return be->dpcm[stream].state;  in snd_soc_dpcm_be_get_state()
2619 void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be,  in snd_soc_dpcm_be_set_state()  argument
2622 	be->dpcm[stream].state = state;  in snd_soc_dpcm_be_set_state()
2631 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_can_be_free_stop()  argument
2636 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in snd_soc_dpcm_can_be_free_stop()
2658 		struct snd_soc_pcm_runtime *be, int stream)  in snd_soc_dpcm_can_be_params()  argument
2663 	list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) {  in snd_soc_dpcm_can_be_params()
2753 		struct snd_soc_pcm_runtime *be = dpcm->be;  in dpcm_show_state()  local
2757 				"- %s\n", be->dai_link->name);  in dpcm_show_state()
2761 				dpcm_state_string(be->dpcm[stream].state));  in dpcm_show_state()
2763 		if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&  in dpcm_show_state()
2764 		    (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))  in dpcm_show_state()