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()
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()
876 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in do_bank_switch()
925 struct sdw_stream_runtime *stream) in sdw_slave_port_free() argument
931 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_slave_port_free()
1076 * @stream_config: Stream configuration
1090 struct sdw_stream_runtime *stream) in sdw_slave_rt_find() argument
1095 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_slave_rt_find()
1110 * @stream: Stream runtime handle.
1115 struct sdw_stream_runtime *stream) in sdw_slave_rt_free() argument
1119 s_rt = sdw_slave_rt_find(slave, stream); in sdw_slave_rt_free()
1128 struct sdw_stream_runtime *stream) in sdw_master_rt_find() argument
1133 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_master_rt_find()
1145 * @stream: Stream runtime handle.
1151 struct sdw_stream_runtime *stream) in sdw_master_rt_alloc() argument
1162 list_add_tail(&m_rt->stream_node, &stream->master_list); in sdw_master_rt_alloc()
1167 m_rt->stream = stream; in sdw_master_rt_alloc()
1176 * @stream_config: Stream configuration
1194 * @stream: Stream runtime handle.
1202 struct sdw_stream_runtime *stream) in sdw_master_rt_free() argument
1207 sdw_slave_port_free(s_rt->slave, stream); in sdw_master_rt_free()
1208 sdw_slave_rt_free(s_rt->slave, stream); in sdw_master_rt_free()
1217 * sdw_config_stream() - Configure the allocated stream
1220 * @stream: SoundWire stream
1221 * @stream_config: Stream configuration for audio stream
1227 struct sdw_stream_runtime *stream, in sdw_config_stream() argument
1232 * Update the stream rate, channel and bps based on data in sdw_config_stream()
1234 * match the rate, bps, stream type and increment number of channels. in sdw_config_stream()
1237 * comparison and allow the value to be set and stored in stream in sdw_config_stream()
1239 if (stream->params.rate && in sdw_config_stream()
1240 stream->params.rate != stream_config->frame_rate) { in sdw_config_stream()
1241 dev_err(dev, "rate not matching, stream:%s\n", stream->name); in sdw_config_stream()
1245 if (stream->params.bps && in sdw_config_stream()
1246 stream->params.bps != stream_config->bps) { in sdw_config_stream()
1247 dev_err(dev, "bps not matching, stream:%s\n", stream->name); in sdw_config_stream()
1251 stream->type = stream_config->type; in sdw_config_stream()
1252 stream->params.rate = stream_config->frame_rate; in sdw_config_stream()
1253 stream->params.bps = stream_config->bps; in sdw_config_stream()
1257 stream->params.ch_count += stream_config->ch_count; in sdw_config_stream()
1296 * @stream: SoundWire stream
1299 * stream to reconfigure the bus.
1300 * NOTE: This function is called from SoundWire stream ops and is
1303 static void sdw_acquire_bus_lock(struct sdw_stream_runtime *stream) in sdw_acquire_bus_lock() argument
1309 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in sdw_acquire_bus_lock()
1319 * @stream: SoundWire stream
1322 * NOTE: This function is called from SoundWire stream ops and is
1325 static void sdw_release_bus_lock(struct sdw_stream_runtime *stream) in sdw_release_bus_lock() argument
1331 list_for_each_entry_reverse(m_rt, &stream->master_list, stream_node) { in sdw_release_bus_lock()
1337 static int _sdw_prepare_stream(struct sdw_stream_runtime *stream, in _sdw_prepare_stream() argument
1346 /* Prepare Master(s) and Slave(s) port(s) associated with stream */ in _sdw_prepare_stream()
1347 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_prepare_stream()
1353 if ((prop->max_clk_freq % stream->params.rate) != 0) { in _sdw_prepare_stream()
1363 bus->params.bandwidth += m_rt->stream->params.rate * in _sdw_prepare_stream()
1364 m_rt->ch_count * m_rt->stream->params.bps; in _sdw_prepare_stream()
1390 ret = do_bank_switch(stream); in _sdw_prepare_stream()
1396 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_prepare_stream()
1408 stream->state = SDW_STREAM_PREPARED; in _sdw_prepare_stream()
1418 * sdw_prepare_stream() - Prepare SoundWire stream
1420 * @stream: Soundwire stream
1422 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1424 int sdw_prepare_stream(struct sdw_stream_runtime *stream) in sdw_prepare_stream() argument
1429 if (!stream) { in sdw_prepare_stream()
1430 pr_err("SoundWire: Handle not found for stream\n"); in sdw_prepare_stream()
1434 sdw_acquire_bus_lock(stream); in sdw_prepare_stream()
1436 if (stream->state == SDW_STREAM_PREPARED) { in sdw_prepare_stream()
1441 if (stream->state != SDW_STREAM_CONFIGURED && in sdw_prepare_stream()
1442 stream->state != SDW_STREAM_DEPREPARED && in sdw_prepare_stream()
1443 stream->state != SDW_STREAM_DISABLED) { in sdw_prepare_stream()
1445 __func__, stream->name, stream->state); in sdw_prepare_stream()
1451 * when the stream is DISABLED, this means sdw_prepare_stream() in sdw_prepare_stream()
1456 if (stream->state == SDW_STREAM_DISABLED) in sdw_prepare_stream()
1459 ret = _sdw_prepare_stream(stream, update_params); in sdw_prepare_stream()
1462 sdw_release_bus_lock(stream); in sdw_prepare_stream()
1467 static int _sdw_enable_stream(struct sdw_stream_runtime *stream) in _sdw_enable_stream() argument
1473 /* Enable Master(s) and Slave(s) port(s) associated with stream */ in _sdw_enable_stream()
1474 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_enable_stream()
1498 ret = do_bank_switch(stream); in _sdw_enable_stream()
1504 stream->state = SDW_STREAM_ENABLED; in _sdw_enable_stream()
1509 * sdw_enable_stream() - Enable SoundWire stream
1511 * @stream: Soundwire stream
1513 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1515 int sdw_enable_stream(struct sdw_stream_runtime *stream) in sdw_enable_stream() argument
1519 if (!stream) { in sdw_enable_stream()
1520 pr_err("SoundWire: Handle not found for stream\n"); in sdw_enable_stream()
1524 sdw_acquire_bus_lock(stream); in sdw_enable_stream()
1526 if (stream->state == SDW_STREAM_ENABLED) { in sdw_enable_stream()
1531 if (stream->state != SDW_STREAM_PREPARED && in sdw_enable_stream()
1532 stream->state != SDW_STREAM_DISABLED) { in sdw_enable_stream()
1534 __func__, stream->name, stream->state); in sdw_enable_stream()
1539 ret = _sdw_enable_stream(stream); in sdw_enable_stream()
1542 sdw_release_bus_lock(stream); in sdw_enable_stream()
1547 static int _sdw_disable_stream(struct sdw_stream_runtime *stream) in _sdw_disable_stream() argument
1552 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1562 stream->state = SDW_STREAM_DISABLED; in _sdw_disable_stream()
1564 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1575 ret = do_bank_switch(stream); in _sdw_disable_stream()
1582 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_disable_stream()
1597 * sdw_disable_stream() - Disable SoundWire stream
1599 * @stream: Soundwire stream
1601 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1603 int sdw_disable_stream(struct sdw_stream_runtime *stream) in sdw_disable_stream() argument
1607 if (!stream) { in sdw_disable_stream()
1608 pr_err("SoundWire: Handle not found for stream\n"); in sdw_disable_stream()
1612 sdw_acquire_bus_lock(stream); in sdw_disable_stream()
1614 if (stream->state == SDW_STREAM_DISABLED) { in sdw_disable_stream()
1619 if (stream->state != SDW_STREAM_ENABLED) { in sdw_disable_stream()
1621 __func__, stream->name, stream->state); in sdw_disable_stream()
1626 ret = _sdw_disable_stream(stream); in sdw_disable_stream()
1629 sdw_release_bus_lock(stream); in sdw_disable_stream()
1634 static int _sdw_deprepare_stream(struct sdw_stream_runtime *stream) in _sdw_deprepare_stream() argument
1640 list_for_each_entry(m_rt, &stream->master_list, stream_node) { in _sdw_deprepare_stream()
1651 bus->params.bandwidth -= m_rt->stream->params.rate * in _sdw_deprepare_stream()
1652 m_rt->ch_count * m_rt->stream->params.bps; in _sdw_deprepare_stream()
1672 stream->state = SDW_STREAM_DEPREPARED; in _sdw_deprepare_stream()
1673 return do_bank_switch(stream); in _sdw_deprepare_stream()
1677 * sdw_deprepare_stream() - Deprepare SoundWire stream
1679 * @stream: Soundwire stream
1681 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1683 int sdw_deprepare_stream(struct sdw_stream_runtime *stream) in sdw_deprepare_stream() argument
1687 if (!stream) { in sdw_deprepare_stream()
1688 pr_err("SoundWire: Handle not found for stream\n"); in sdw_deprepare_stream()
1692 sdw_acquire_bus_lock(stream); in sdw_deprepare_stream()
1694 if (stream->state == SDW_STREAM_DEPREPARED) { in sdw_deprepare_stream()
1699 if (stream->state != SDW_STREAM_PREPARED && in sdw_deprepare_stream()
1700 stream->state != SDW_STREAM_DISABLED) { in sdw_deprepare_stream()
1702 __func__, stream->name, stream->state); in sdw_deprepare_stream()
1707 ret = _sdw_deprepare_stream(stream); in sdw_deprepare_stream()
1710 sdw_release_bus_lock(stream); in sdw_deprepare_stream()
1723 /* Set stream pointer on all DAIs */ in set_stream()
1725 ret = snd_soc_dai_set_stream(dai, sdw_stream, substream->stream); in set_stream()
1727 dev_err(rtd->dev, "failed to set stream pointer on dai %s\n", dai->name); in set_stream()
1736 * sdw_alloc_stream() - Allocate and return stream runtime
1738 * @stream_name: SoundWire stream name
1740 * Allocates a SoundWire stream runtime instance.
1741 * sdw_alloc_stream should be called only once per stream. Typically
1746 struct sdw_stream_runtime *stream; in sdw_alloc_stream() local
1748 stream = kzalloc(sizeof(*stream), GFP_KERNEL); in sdw_alloc_stream()
1749 if (!stream) in sdw_alloc_stream()
1752 stream->name = stream_name; in sdw_alloc_stream()
1753 INIT_LIST_HEAD(&stream->master_list); in sdw_alloc_stream()
1754 stream->state = SDW_STREAM_ALLOCATED; in sdw_alloc_stream()
1755 stream->m_rt_count = 0; in sdw_alloc_stream()
1757 return stream; in sdw_alloc_stream()
1762 * sdw_startup_stream() - Startup SoundWire stream
1764 * @sdw_substream: Soundwire stream
1766 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1776 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) in sdw_startup_stream()
1786 dev_err(rtd->dev, "alloc stream failed for substream DAI %s\n", substream->name); in sdw_startup_stream()
1806 * sdw_shutdown_stream() - Shutdown SoundWire stream
1808 * @sdw_substream: Soundwire stream
1810 * Documentation/driver-api/soundwire/stream.rst explains this API in detail
1819 /* Find stream from first CPU DAI */ in sdw_shutdown_stream()
1822 sdw_stream = snd_soc_dai_get_stream(dai, substream->stream); in sdw_shutdown_stream()
1825 dev_err(rtd->dev, "no stream found for DAI %s\n", dai->name); in sdw_shutdown_stream()
1839 * sdw_release_stream() - Free the assigned stream runtime
1841 * @stream: SoundWire stream runtime
1843 * sdw_release_stream should be called only once per stream
1845 void sdw_release_stream(struct sdw_stream_runtime *stream) in sdw_release_stream() argument
1847 kfree(stream); in sdw_release_stream()
1852 * sdw_stream_add_master() - Allocate and add master runtime to a stream
1855 * @stream_config: Stream configuration for audio stream
1856 * @port_config: Port configuration for audio stream
1858 * @stream: SoundWire stream
1864 struct sdw_stream_runtime *stream) in sdw_stream_add_master() argument
1877 if (!bus->multi_link && stream->m_rt_count > 0) { in sdw_stream_add_master()
1888 m_rt = sdw_master_rt_find(bus, stream); in sdw_stream_add_master()
1894 m_rt = sdw_master_rt_alloc(bus, stream); in sdw_stream_add_master()
1896 dev_err(bus->dev, "Master runtime alloc failed for stream:%s\n", stream->name); in sdw_stream_add_master()
1909 stream->m_rt_count++; in sdw_stream_add_master()
1917 ret = sdw_config_stream(bus->dev, stream, stream_config, false); in sdw_stream_add_master()
1930 sdw_master_rt_free(m_rt, stream); in sdw_stream_add_master()
1941 * @stream: SoundWire stream
1943 * This removes and frees port_rt and master_rt from a stream
1946 struct sdw_stream_runtime *stream) in sdw_stream_remove_master() argument
1953 &stream->master_list, stream_node) { in sdw_stream_remove_master()
1958 sdw_master_rt_free(m_rt, stream); in sdw_stream_remove_master()
1959 stream->m_rt_count--; in sdw_stream_remove_master()
1962 if (list_empty(&stream->master_list)) in sdw_stream_remove_master()
1963 stream->state = SDW_STREAM_RELEASED; in sdw_stream_remove_master()
1972 * sdw_stream_add_slave() - Allocate and add master/slave runtime to a stream
1975 * @stream_config: Stream configuration for audio stream
1976 * @stream: SoundWire stream
1977 * @port_config: Port configuration for audio stream
1981 * to the Stream.
1988 struct sdw_stream_runtime *stream) in sdw_stream_add_slave() argument
2003 m_rt = sdw_master_rt_find(slave->bus, stream); in sdw_stream_add_slave()
2013 m_rt = sdw_master_rt_alloc(slave->bus, stream); in sdw_stream_add_slave()
2015 dev_err(&slave->dev, "Master runtime alloc failed for stream:%s\n", stream->name); in sdw_stream_add_slave()
2021 s_rt = sdw_slave_rt_find(slave, stream); in sdw_stream_add_slave()
2027 dev_err(&slave->dev, "Slave runtime alloc failed for stream:%s\n", stream->name); in sdw_stream_add_slave()
2050 ret = sdw_config_stream(&slave->dev, stream, stream_config, true); in sdw_stream_add_slave()
2059 * Change stream state to CONFIGURED on first Slave add. in sdw_stream_add_slave()
2060 * Bus is not aware of number of Slave(s) in a stream at this in sdw_stream_add_slave()
2062 * change stream state to CONFIGURED. in sdw_stream_add_slave()
2064 stream->state = SDW_STREAM_CONFIGURED; in sdw_stream_add_slave()
2074 sdw_master_rt_free(m_rt, stream); in sdw_stream_add_slave()
2076 sdw_slave_rt_free(slave, stream); in sdw_stream_add_slave()
2087 * @stream: SoundWire stream
2089 * This removes and frees port_rt and slave_rt from a stream
2092 struct sdw_stream_runtime *stream) in sdw_stream_remove_slave() argument
2096 sdw_slave_port_free(slave, stream); in sdw_stream_remove_slave()
2097 sdw_slave_rt_free(slave, stream); in sdw_stream_remove_slave()