diff options
author | Vinod Koul <vkoul@kernel.org> | 2018-04-26 18:38:48 +0530 |
---|---|---|
committer | Vinod Koul <vkoul@kernel.org> | 2018-05-11 21:48:05 +0530 |
commit | 07abeff1ef1ae88773de534e2eb3e49ca3b90c7f (patch) | |
tree | f8fb29223e63d0a8f1733a5a08d4d78bd551a1e5 /drivers/soundwire/cadence_master.h | |
parent | c91605f4893828db39d448956114648459b254f0 (diff) |
soundwire: cdns: Add port routines
Add support for Cadence port management and implement
master port ops.
Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/cadence_master.h')
-rw-r--r-- | drivers/soundwire/cadence_master.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h index 3ec74fa5f4f9..98a17f57918f 100644 --- a/drivers/soundwire/cadence_master.h +++ b/drivers/soundwire/cadence_master.h @@ -5,6 +5,92 @@ #define __SDW_CADENCE_H /** + * struct sdw_cdns_pdi: PDI (Physical Data Interface) instance + * + * @assigned: pdi assigned + * @num: pdi number + * @intel_alh_id: link identifier + * @l_ch_num: low channel for PDI + * @h_ch_num: high channel for PDI + * @ch_count: total channel count for PDI + * @dir: data direction + * @type: stream type, PDM or PCM + */ +struct sdw_cdns_pdi { + bool assigned; + int num; + int intel_alh_id; + int l_ch_num; + int h_ch_num; + int ch_count; + enum sdw_data_direction dir; + enum sdw_stream_type type; +}; + +/** + * struct sdw_cdns_port: Cadence port structure + * + * @num: port number + * @assigned: port assigned + * @ch: channel count + * @direction: data port direction + * @pdi: pdi for this port + */ +struct sdw_cdns_port { + unsigned int num; + bool assigned; + unsigned int ch; + enum sdw_data_direction direction; + struct sdw_cdns_pdi *pdi; +}; + +/** + * struct sdw_cdns_streams: Cadence stream data structure + * + * @num_bd: number of bidirectional streams + * @num_in: number of input streams + * @num_out: number of output streams + * @num_ch_bd: number of bidirectional stream channels + * @num_ch_bd: number of input stream channels + * @num_ch_bd: number of output stream channels + * @num_pdi: total number of PDIs + * @bd: bidirectional streams + * @in: input streams + * @out: output streams + */ +struct sdw_cdns_streams { + unsigned int num_bd; + unsigned int num_in; + unsigned int num_out; + unsigned int num_ch_bd; + unsigned int num_ch_in; + unsigned int num_ch_out; + unsigned int num_pdi; + struct sdw_cdns_pdi *bd; + struct sdw_cdns_pdi *in; + struct sdw_cdns_pdi *out; +}; + +/** + * struct sdw_cdns_stream_config: stream configuration + * + * @pcm_bd: number of bidirectional PCM streams supported + * @pcm_in: number of input PCM streams supported + * @pcm_out: number of output PCM streams supported + * @pdm_bd: number of bidirectional PDM streams supported + * @pdm_in: number of input PDM streams supported + * @pdm_out: number of output PDM streams supported + */ +struct sdw_cdns_stream_config { + unsigned int pcm_bd; + unsigned int pcm_in; + unsigned int pcm_out; + unsigned int pdm_bd; + unsigned int pdm_in; + unsigned int pdm_out; +}; + +/** * struct sdw_cdns - Cadence driver context * @dev: Linux device * @bus: Bus handle @@ -12,6 +98,10 @@ * @response_buf: SoundWire response buffer * @tx_complete: Tx completion * @defer: Defer pointer + * @ports: Data ports + * @num_ports: Total number of data ports + * @pcm: PCM streams + * @pdm: PDM streams * @registers: Cadence registers * @link_up: Link status * @msg_count: Messages sent on bus @@ -25,6 +115,12 @@ struct sdw_cdns { struct completion tx_complete; struct sdw_defer *defer; + struct sdw_cdns_port *ports; + int num_ports; + + struct sdw_cdns_streams pcm; + struct sdw_cdns_streams pdm; + void __iomem *registers; bool link_up; @@ -42,6 +138,8 @@ irqreturn_t sdw_cdns_irq(int irq, void *dev_id); irqreturn_t sdw_cdns_thread(int irq, void *dev_id); int sdw_cdns_init(struct sdw_cdns *cdns); +int sdw_cdns_pdi_init(struct sdw_cdns *cdns, + struct sdw_cdns_stream_config config); int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns); enum sdw_command_response @@ -53,4 +151,6 @@ cdns_xfer_msg_defer(struct sdw_bus *bus, enum sdw_command_response cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num); + +int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params); #endif /* __SDW_CADENCE_H */ |