Lines Matching full:stream
5 * stream.c - SoundWire Bus stream operations.
264 * @m_rt: Master stream runtime
372 * @m_rt: Master stream runtime
639 * explicitly preparing a stream or handling an in sdw_program_params()
640 * already-prepared stream otherwise. in sdw_program_params()
643 m_rt->stream->state == SDW_STREAM_CONFIGURED) in sdw_program_params()
661 if (m_rt->stream->state != SDW_STREAM_ENABLED) in sdw_program_params()
745 * @multi_link: whether this is a multi-link stream with hardware-based sync
777 static int do_bank_switch(struct sdw_stream_runtime *stream) in do_bank_switch() argument
786 m_rt_count = stream->m_rt_count; in do_bank_switch()
788 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in do_bank_switch()
826 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in do_bank_switch()
865 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in do_bank_switch()
877 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in do_bank_switch()
926 struct sdw_stream_runtime *stream) in sdw_slave_port_free() argument
932 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_slave_port_free()
1077 * @stream_config: Stream configuration
1091 struct sdw_stream_runtime *stream) in sdw_slave_rt_find() argument
1096 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_slave_rt_find()
1111 * @stream: Stream runtime handle.
1116 struct sdw_stream_runtime *stream) in sdw_slave_rt_free() argument
1120 s_rt = sdw_slave_rt_find(slave, stream); in sdw_slave_rt_free()
1129 struct sdw_stream_runtime *stream) in sdw_master_rt_find() argument
1134 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_master_rt_find()
1146 * @stream: Stream runtime handle.
1152 struct sdw_stream_runtime *stream) in sdw_master_rt_alloc() argument
1170 insert_after = &stream->master_list; in sdw_master_rt_alloc()
1171 list_for_each_entry_reverse(walk_m_rt, &stream->master_list, stream_node) { in sdw_master_rt_alloc()
1182 m_rt->stream = stream; in sdw_master_rt_alloc()
1191 * @stream_config: Stream configuration
1209 * @stream: Stream runtime handle.
1217 struct sdw_stream_runtime *stream) in sdw_master_rt_free() argument
1222 sdw_slave_port_free(s_rt->slave, stream); in sdw_master_rt_free()
1223 sdw_slave_rt_free(s_rt->slave, stream); in sdw_master_rt_free()
1232 * sdw_config_stream() - Configure the allocated stream
1235 * @stream: SoundWire stream
1236 * @stream_config: Stream configuration for audio stream
1242 struct sdw_stream_runtime *stream, in sdw_config_stream() argument
1247 * Update the stream rate, channel and bps based on data in sdw_config_stream()
1249 * match the rate, bps, stream type and increment number of channels. in sdw_config_stream()
1252 * comparison and allow the value to be set and stored in stream in sdw_config_stream()
1254 if (stream->params.rate && in sdw_config_stream()
1255 stream->params.rate != stream_config->frame_rate) { in sdw_config_stream()
1256 dev_err(dev, "rate not matching, stream:%s\n", stream->name); in sdw_config_stream()
1260 if (stream->params.bps && in sdw_config_stream()
1261 stream->params.bps != stream_config->bps) { in sdw_config_stream()
1262 dev_err(dev, "bps not matching, stream:%s\n", stream->name); in sdw_config_stream()
1266 stream->type = stream_config->type; in sdw_config_stream()
1267 stream->params.rate = stream_config->frame_rate; in sdw_config_stream()
1268 stream->params.bps = stream_config->bps; in sdw_config_stream()
1272 stream->params.ch_count += stream_config->ch_count; in sdw_config_stream()
1311 * @stream: SoundWire stream
1314 * stream to reconfigure the bus.
1315 * NOTE: This function is called from SoundWire stream ops and is
1318 static void sdw_acquire_bus_lock(struct sdw_stream_runtime *stream) in sdw_acquire_bus_lock() argument
1324 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_acquire_bus_lock()
1334 * @stream: SoundWire stream
1337 * NOTE: This function is called from SoundWire stream ops and is
1340 static void sdw_release_bus_lock(struct sdw_stream_runtime *stream) in sdw_release_bus_lock() argument
1346 list_for_each_entry_reverse(m_rt, &stream->master_list, stream_node) { in sdw_release_bus_lock()
1352 static int _sdw_prepare_stream(struct sdw_stream_runtime *stream, in _sdw_prepare_stream() argument
1361 /* Prepare Master(s) and Slave(s) port(s) associated with stream */ in _sdw_prepare_stream()
1362 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_prepare_stream()
1368 if ((prop->max_clk_freq % stream->params.rate) != 0) { in _sdw_prepare_stream()
1376 bus->params.bandwidth += m_rt->stream->params.rate * in _sdw_prepare_stream()
1377 m_rt->ch_count * m_rt->stream->params.bps; in _sdw_prepare_stream()
1398 ret = do_bank_switch(stream); in _sdw_prepare_stream()
1404 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_prepare_stream()
1416 stream->state = SDW_STREAM_PREPARED; in _sdw_prepare_stream()
1426 * sdw_prepare_stream() - Prepare SoundWire stream
1428 * @stream: Soundwire stream
1430 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1432 int sdw_prepare_stream(struct sdw_stream_runtime *stream) in sdw_prepare_stream() argument
1437 if (!stream) { in sdw_prepare_stream()
1438 pr_err("SoundWire: Handle not found for stream\n"); in sdw_prepare_stream()
1442 sdw_acquire_bus_lock(stream); in sdw_prepare_stream()
1444 if (stream->state == SDW_STREAM_PREPARED) { in sdw_prepare_stream()
1449 if (stream->state != SDW_STREAM_CONFIGURED && in sdw_prepare_stream()
1450 stream->state != SDW_STREAM_DEPREPARED && in sdw_prepare_stream()
1451 stream->state != SDW_STREAM_DISABLED) { in sdw_prepare_stream()
1453 __func__, stream->name, stream->state); in sdw_prepare_stream()
1459 * when the stream is DISABLED, this means sdw_prepare_stream() in sdw_prepare_stream()
1464 if (stream->state == SDW_STREAM_DISABLED) in sdw_prepare_stream()
1467 ret = _sdw_prepare_stream(stream, update_params); in sdw_prepare_stream()
1470 sdw_release_bus_lock(stream); in sdw_prepare_stream()
1475 static int _sdw_enable_stream(struct sdw_stream_runtime *stream) in _sdw_enable_stream() argument
1481 /* Enable Master(s) and Slave(s) port(s) associated with stream */ in _sdw_enable_stream()
1482 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_enable_stream()
1501 ret = do_bank_switch(stream); in _sdw_enable_stream()
1507 stream->state = SDW_STREAM_ENABLED; in _sdw_enable_stream()
1512 * sdw_enable_stream() - Enable SoundWire stream
1514 * @stream: Soundwire stream
1516 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1518 int sdw_enable_stream(struct sdw_stream_runtime *stream) in sdw_enable_stream() argument
1522 if (!stream) { in sdw_enable_stream()
1523 pr_err("SoundWire: Handle not found for stream\n"); in sdw_enable_stream()
1527 sdw_acquire_bus_lock(stream); in sdw_enable_stream()
1529 if (stream->state == SDW_STREAM_ENABLED) { in sdw_enable_stream()
1534 if (stream->state != SDW_STREAM_PREPARED && in sdw_enable_stream()
1535 stream->state != SDW_STREAM_DISABLED) { in sdw_enable_stream()
1537 __func__, stream->name, stream->state); in sdw_enable_stream()
1542 ret = _sdw_enable_stream(stream); in sdw_enable_stream()
1545 sdw_release_bus_lock(stream); in sdw_enable_stream()
1550 static int _sdw_disable_stream(struct sdw_stream_runtime *stream) in _sdw_disable_stream() argument
1555 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1565 stream->state = SDW_STREAM_DISABLED; in _sdw_disable_stream()
1567 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1578 ret = do_bank_switch(stream); in _sdw_disable_stream()
1585 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1600 * sdw_disable_stream() - Disable SoundWire stream
1602 * @stream: Soundwire stream
1604 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1606 int sdw_disable_stream(struct sdw_stream_runtime *stream) in sdw_disable_stream() argument
1610 if (!stream) { in sdw_disable_stream()
1611 pr_err("SoundWire: Handle not found for stream\n"); in sdw_disable_stream()
1615 sdw_acquire_bus_lock(stream); in sdw_disable_stream()
1617 if (stream->state == SDW_STREAM_DISABLED) { in sdw_disable_stream()
1622 if (stream->state != SDW_STREAM_ENABLED) { in sdw_disable_stream()
1624 __func__, stream->name, stream->state); in sdw_disable_stream()
1629 ret = _sdw_disable_stream(stream); in sdw_disable_stream()
1632 sdw_release_bus_lock(stream); in sdw_disable_stream()
1637 static int _sdw_deprepare_stream(struct sdw_stream_runtime *stream) in _sdw_deprepare_stream() argument
1643 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_deprepare_stream()
1654 bus->params.bandwidth -= m_rt->stream->params.rate * in _sdw_deprepare_stream()
1655 m_rt->ch_count * m_rt->stream->params.bps; in _sdw_deprepare_stream()
1675 stream->state = SDW_STREAM_DEPREPARED; in _sdw_deprepare_stream()
1676 return do_bank_switch(stream); in _sdw_deprepare_stream()
1680 * sdw_deprepare_stream() - Deprepare SoundWire stream
1682 * @stream: Soundwire stream
1684 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1686 int sdw_deprepare_stream(struct sdw_stream_runtime *stream) in sdw_deprepare_stream() argument
1690 if (!stream) { in sdw_deprepare_stream()
1691 pr_err("SoundWire: Handle not found for stream\n"); in sdw_deprepare_stream()
1695 sdw_acquire_bus_lock(stream); in sdw_deprepare_stream()
1697 if (stream->state == SDW_STREAM_DEPREPARED) { in sdw_deprepare_stream()
1702 if (stream->state != SDW_STREAM_PREPARED && in sdw_deprepare_stream()
1703 stream->state != SDW_STREAM_DISABLED) { in sdw_deprepare_stream()
1705 __func__, stream->name, stream->state); in sdw_deprepare_stream()
1710 ret = _sdw_deprepare_stream(stream); in sdw_deprepare_stream()
1713 sdw_release_bus_lock(stream); in sdw_deprepare_stream()
1726 /* Set stream pointer on all DAIs */ in set_stream()
1728 ret = snd_soc_dai_set_stream(dai, sdw_stream, substream->stream); in set_stream()
1730 dev_err(rtd->dev, "failed to set stream pointer on dai %s\n", dai->name); in set_stream()
1739 * sdw_alloc_stream() - Allocate and return stream runtime
1741 * @stream_name: SoundWire stream name
1743 * Allocates a SoundWire stream runtime instance.
1744 * sdw_alloc_stream should be called only once per stream. Typically
1749 struct sdw_stream_runtime *stream; in sdw_alloc_stream() local
1751 stream = kzalloc(sizeof(*stream), GFP_KERNEL); in sdw_alloc_stream()
1752 if (!stream) in sdw_alloc_stream()
1755 stream->name = stream_name; in sdw_alloc_stream()
1756 INIT_LIST_HEAD(&stream->master_list); in sdw_alloc_stream()
1757 stream->state = SDW_STREAM_ALLOCATED; in sdw_alloc_stream()
1758 stream->m_rt_count = 0; in sdw_alloc_stream()
1760 return stream; in sdw_alloc_stream()
1765 * sdw_startup_stream() - Startup SoundWire stream
1767 * @sdw_substream: Soundwire stream
1769 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1779 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) in sdw_startup_stream()
1789 dev_err(rtd->dev, "alloc stream failed for substream DAI %s\n", substream->name); in sdw_startup_stream()
1809 * sdw_shutdown_stream() - Shutdown SoundWire stream
1811 * @sdw_substream: Soundwire stream
1813 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1822 /* Find stream from first CPU DAI */ in sdw_shutdown_stream()
1825 sdw_stream = snd_soc_dai_get_stream(dai, substream->stream); in sdw_shutdown_stream()
1828 dev_err(rtd->dev, "no stream found for DAI %s\n", dai->name); in sdw_shutdown_stream()
1842 * sdw_release_stream() - Free the assigned stream runtime
1844 * @stream: SoundWire stream runtime
1846 * sdw_release_stream should be called only once per stream
1848 void sdw_release_stream(struct sdw_stream_runtime *stream) in sdw_release_stream() argument
1850 kfree(stream); in sdw_release_stream()
1855 * sdw_stream_add_master() - Allocate and add master runtime to a stream
1858 * @stream_config: Stream configuration for audio stream
1859 * @port_config: Port configuration for audio stream
1861 * @stream: SoundWire stream
1867 struct sdw_stream_runtime *stream) in sdw_stream_add_master() argument
1880 if (!bus->multi_link && stream->m_rt_count > 0) { in sdw_stream_add_master()
1891 m_rt = sdw_master_rt_find(bus, stream); in sdw_stream_add_master()
1893 m_rt = sdw_master_rt_alloc(bus, stream); in sdw_stream_add_master()
1895 dev_err(bus->dev, "%s: Master runtime alloc failed for stream:%s\n", in sdw_stream_add_master()
1896 __func__, stream->name); in sdw_stream_add_master()
1909 stream->m_rt_count++; in sdw_stream_add_master()
1916 ret = sdw_config_stream(bus->dev, stream, stream_config, false); in sdw_stream_add_master()
1929 sdw_master_rt_free(m_rt, stream); in sdw_stream_add_master()
1940 * @stream: SoundWire stream
1942 * This removes and frees port_rt and master_rt from a stream
1945 struct sdw_stream_runtime *stream) in sdw_stream_remove_master() argument
1952 &stream->master_list, stream_node) { in sdw_stream_remove_master()
1957 sdw_master_rt_free(m_rt, stream); in sdw_stream_remove_master()
1958 stream->m_rt_count--; in sdw_stream_remove_master()
1961 if (list_empty(&stream->master_list)) in sdw_stream_remove_master()
1962 stream->state = SDW_STREAM_RELEASED; in sdw_stream_remove_master()
1971 * sdw_stream_add_slave() - Allocate and add master/slave runtime to a stream
1974 * @stream_config: Stream configuration for audio stream
1975 * @stream: SoundWire stream
1976 * @port_config: Port configuration for audio stream
1980 * to the Stream.
1987 struct sdw_stream_runtime *stream) in sdw_stream_add_slave() argument
2002 m_rt = sdw_master_rt_find(slave->bus, stream); in sdw_stream_add_slave()
2008 m_rt = sdw_master_rt_alloc(slave->bus, stream); in sdw_stream_add_slave()
2010 dev_err(&slave->dev, "%s: Master runtime alloc failed for stream:%s\n", in sdw_stream_add_slave()
2011 __func__, stream->name); in sdw_stream_add_slave()
2019 s_rt = sdw_slave_rt_find(slave, stream); in sdw_stream_add_slave()
2023 dev_err(&slave->dev, "Slave runtime alloc failed for stream:%s\n", in sdw_stream_add_slave()
2024 stream->name); in sdw_stream_add_slave()
2046 ret = sdw_config_stream(&slave->dev, stream, stream_config, true); in sdw_stream_add_slave()
2055 * Change stream state to CONFIGURED on first Slave add. in sdw_stream_add_slave()
2056 * Bus is not aware of number of Slave(s) in a stream at this in sdw_stream_add_slave()
2058 * change stream state to CONFIGURED. in sdw_stream_add_slave()
2060 stream->state = SDW_STREAM_CONFIGURED; in sdw_stream_add_slave()
2070 sdw_master_rt_free(m_rt, stream); in sdw_stream_add_slave()
2072 sdw_slave_rt_free(slave, stream); in sdw_stream_add_slave()
2083 * @stream: SoundWire stream
2085 * This removes and frees port_rt and slave_rt from a stream
2088 struct sdw_stream_runtime *stream) in sdw_stream_remove_slave() argument
2092 sdw_slave_port_free(slave, stream); in sdw_stream_remove_slave()
2093 sdw_slave_rt_free(slave, stream); in sdw_stream_remove_slave()