From 89e590535f32d4bc548bcf266f3b046e50942f6d Mon Sep 17 00:00:00 2001 From: Sanyog Kale Date: Thu, 26 Apr 2018 18:38:08 +0530 Subject: soundwire: Add support for SoundWire stream management This patch adds APIs and relevant stream data structures for initialization and release of stream. Signed-off-by: Hardik T Shah Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul --- drivers/soundwire/bus.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'drivers/soundwire/bus.h') diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h index 345c34d697e9..2e5043de9a4b 100644 --- a/drivers/soundwire/bus.h +++ b/drivers/soundwire/bus.h @@ -45,6 +45,42 @@ struct sdw_msg { bool page; }; +/** + * sdw_slave_runtime: Runtime Stream parameters for Slave + * + * @slave: Slave handle + * @direction: Data direction for Slave + * @ch_count: Number of channels handled by the Slave for + * this stream + * @m_rt_node: sdw_master_runtime list node + */ +struct sdw_slave_runtime { + struct sdw_slave *slave; + enum sdw_data_direction direction; + unsigned int ch_count; + struct list_head m_rt_node; +}; + +/** + * sdw_master_runtime: Runtime stream parameters for Master + * + * @bus: Bus handle + * @stream: Stream runtime handle + * @direction: Data direction for Master + * @ch_count: Number of channels handled by the Master for + * this stream, can be zero. + * @slave_rt_list: Slave runtime list + * @bus_node: sdw_bus m_rt_list node + */ +struct sdw_master_runtime { + struct sdw_bus *bus; + struct sdw_stream_runtime *stream; + enum sdw_data_direction direction; + unsigned int ch_count; + struct list_head slave_rt_list; + struct list_head bus_node; +}; + int sdw_transfer(struct sdw_bus *bus, struct sdw_msg *msg); int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg, struct sdw_defer *defer); -- cgit v1.2.3