diff options
Diffstat (limited to 'drivers/soundwire/cadence_master.h')
| -rw-r--r-- | drivers/soundwire/cadence_master.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h index beaf6c9..eb902b1 100644 --- a/drivers/soundwire/cadence_master.h +++ b/drivers/soundwire/cadence_master.h @@ -1,10 +1,117 @@ // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) // Copyright(c) 2015-17 Intel Corporation. +#include <sound/soc.h> #ifndef __SDW_CADENCE_H #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_dma_data: Cadence DMA data + * + * @name: SoundWire stream name + * @nr_ports: Number of ports + * @port: Ports + * @bus: Bus handle + * @stream_type: Stream type + * @link_id: Master link id + */ +struct sdw_cdns_dma_data { + char *name; + struct sdw_stream_runtime *stream; + int nr_ports; + struct sdw_cdns_port **port; + struct sdw_bus *bus; + enum sdw_stream_type stream_type; + int link_id; +}; + +/** * struct sdw_cdns - Cadence driver context * @dev: Linux device * @bus: Bus handle @@ -12,6 +119,10 @@ * @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 +136,12 @@ 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; @@ -42,7 +159,41 @@ 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); +int sdw_cdns_get_stream(struct sdw_cdns *cdns, + struct sdw_cdns_streams *stream, + u32 ch, u32 dir); +int sdw_cdns_alloc_stream(struct sdw_cdns *cdns, + struct sdw_cdns_streams *stream, + struct sdw_cdns_port *port, u32 ch, u32 dir); +void sdw_cdns_config_stream(struct sdw_cdns *cdns, struct sdw_cdns_port *port, + u32 ch, u32 dir, struct sdw_cdns_pdi *pdi); + +void sdw_cdns_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +int sdw_cdns_pcm_set_stream(struct snd_soc_dai *dai, + void *stream, int direction); +int sdw_cdns_pdm_set_stream(struct snd_soc_dai *dai, + void *stream, int direction); + +enum sdw_command_response +cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num); + +enum sdw_command_response +cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg); + +enum sdw_command_response +cdns_xfer_msg_defer(struct sdw_bus *bus, + struct sdw_msg *msg, struct sdw_defer *defer); + +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); +int cdns_set_sdw_stream(struct snd_soc_dai *dai, + void *stream, bool pcm, int direction); #endif /* __SDW_CADENCE_H */ |
