Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Vinod Koul | 352 | 66.17% | 3 | 10.34% |
Pierre-Louis Bossart | 92 | 17.29% | 17 | 58.62% |
Sanyog Kale | 44 | 8.27% | 1 | 3.45% |
Bard Liao | 14 | 2.63% | 3 | 10.34% |
Rander Wang | 12 | 2.26% | 2 | 6.90% |
Richard Fitzgerald | 9 | 1.69% | 1 | 3.45% |
Shreyas NC | 6 | 1.13% | 1 | 3.45% |
Ranjani Sridharan | 3 | 0.56% | 1 | 3.45% |
Total | 532 | 29 |
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/* 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 #define SDW_CADENCE_GSYNC_KHZ 4 /* 4 kHz */ #define SDW_CADENCE_GSYNC_HZ (SDW_CADENCE_GSYNC_KHZ * 1000) /* * The Cadence IP supports up to 32 entries in the FIFO, though implementations * can configure the IP to have a smaller FIFO. */ #define CDNS_MCP_IP_MAX_CMD_LEN 32 #define SDW_CADENCE_MCP_IP_OFFSET 0x4000 /** * struct sdw_cdns_pdi: PDI (Physical Data Interface) instance * * @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, (only PCM supported) */ struct sdw_cdns_pdi { 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_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 */ struct sdw_cdns_stream_config { unsigned int pcm_bd; unsigned int pcm_in; unsigned int pcm_out; }; /** * struct sdw_cdns_dai_runtime: Cadence DAI runtime data * * @name: SoundWire stream name * @stream: stream runtime * @pdi: PDI used for this dai * @bus: Bus handle * @stream_type: Stream type * @link_id: Master link id * @suspended: status set when suspended, to be used in .prepare * @paused: status set in .trigger, to be used in suspend * @direction: stream direction */ struct sdw_cdns_dai_runtime { char *name; struct sdw_stream_runtime *stream; struct sdw_cdns_pdi *pdi; struct sdw_bus *bus; enum sdw_stream_type stream_type; int link_id; bool suspended; bool paused; int direction; }; /** * struct sdw_cdns - Cadence driver context * @dev: Linux device * @bus: Bus handle * @instance: instance number * @ip_offset: version-dependent offset to access IP_MCP registers and fields * @response_buf: SoundWire response buffer * @tx_complete: Tx completion * @ports: Data ports * @num_ports: Total number of data ports * @pcm: PCM streams * @registers: Cadence registers * @link_up: Link status * @msg_count: Messages sent on bus * @dai_runtime_array: runtime context for each allocated DAI. */ struct sdw_cdns { struct device *dev; struct sdw_bus bus; unsigned int instance; u32 ip_offset; /* * The datasheet says the RX FIFO AVAIL can be 2 entries more * than the FIFO capacity, so allow for this. */ u32 response_buf[CDNS_MCP_IP_MAX_CMD_LEN + 2]; struct completion tx_complete; struct sdw_cdns_port *ports; int num_ports; struct sdw_cdns_streams pcm; int pdi_loopback_source; int pdi_loopback_target; void __iomem *registers; bool link_up; unsigned int msg_count; bool interrupt_enabled; struct work_struct work; struct list_head list; struct sdw_cdns_dai_runtime **dai_runtime_array; }; #define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus) /* Exported symbols */ int sdw_cdns_probe(struct sdw_cdns *cdns); 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_exit_reset(struct sdw_cdns *cdns); int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns, bool state); bool sdw_cdns_is_clock_stop(struct sdw_cdns *cdns); int sdw_cdns_clock_stop(struct sdw_cdns *cdns, bool block_wake); int sdw_cdns_clock_restart(struct sdw_cdns *cdns, bool bus_reset); #ifdef CONFIG_DEBUG_FS void sdw_cdns_debugfs_init(struct sdw_cdns *cdns, struct dentry *root); #endif struct sdw_cdns_pdi *sdw_cdns_alloc_pdi(struct sdw_cdns *cdns, struct sdw_cdns_streams *stream, u32 ch, u32 dir, int dai_id); void sdw_cdns_config_stream(struct sdw_cdns *cdns, u32 ch, u32 dir, struct sdw_cdns_pdi *pdi); 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); u32 cdns_read_ping_status(struct sdw_bus *bus); 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, int direction); void sdw_cdns_check_self_clearing_bits(struct sdw_cdns *cdns, const char *string, bool initial_delay, int reset_iterations); void sdw_cdns_config_update(struct sdw_cdns *cdns); int sdw_cdns_config_update_set_wait(struct sdw_cdns *cdns); #endif /* __SDW_CADENCE_H */
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