[mirror_ubuntu-hirsute-kernel.git] / drivers / soundwire / cadence_master.h

/* 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_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
 * @stream: stream runtime
 * @pdi: PDI used for this dai
 * @bus: Bus handle
 * @stream_type: Stream type
 * @link_id: Master link id
 */
struct sdw_cdns_dma_data {
	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;
};

/**
 * struct sdw_cdns - Cadence driver context
 * @dev: Linux device
 * @bus: Bus handle
 * @instance: instance number
 * @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
 */
struct sdw_cdns {
	struct device *dev;
	struct sdw_bus bus;
	unsigned int instance;

	u32 response_buf[0x80];
	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;
	unsigned int msg_count;
};

#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)

/* Exported symbols */

int sdw_cdns_probe(struct sdw_cdns *cdns);
extern struct sdw_master_ops sdw_cdns_master_ops;

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);

#ifdef CONFIG_DEBUG_FS
void sdw_cdns_debugfs_init(struct sdw_cdns *cdns, struct dentry *root);
#endif

int sdw_cdns_get_stream(struct sdw_cdns *cdns,
			struct sdw_cdns_streams *stream,
			u32 ch, u32 dir);
struct sdw_cdns_pdi *sdw_cdns_alloc_pdi(struct sdw_cdns *cdns,
					struct sdw_cdns_streams *stream,
					u32 ch, u32 dir);
void sdw_cdns_config_stream(struct sdw_cdns *cdns,
			    u32 ch, u32 dir, struct sdw_cdns_pdi *pdi);

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 */
Commit	Line	Data
23859465 PLB	1	/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
23859465 PLB	2	/* Copyright(c) 2015-17 Intel Corporation. */
5d6b3c8b	3	#include <sound/soc.h>
2f52a517 VK	4
	5	#ifndef __SDW_CADENCE_H
	6	#define __SDW_CADENCE_H
	7
07abeff1 VK	8	/**
	9	* struct sdw_cdns_pdi: PDI (Physical Data Interface) instance
	10	*
	11	* @assigned: pdi assigned
	12	* @num: pdi number
	13	* @intel_alh_id: link identifier
	14	* @l_ch_num: low channel for PDI
	15	* @h_ch_num: high channel for PDI
	16	* @ch_count: total channel count for PDI
	17	* @dir: data direction
	18	* @type: stream type, PDM or PCM
	19	*/
	20	struct sdw_cdns_pdi {
	21	bool assigned;
	22	int num;
	23	int intel_alh_id;
	24	int l_ch_num;
	25	int h_ch_num;
	26	int ch_count;
	27	enum sdw_data_direction dir;
	28	enum sdw_stream_type type;
	29	};
	30
07abeff1 VK	31	/**
	32	* struct sdw_cdns_streams: Cadence stream data structure
	33	*
	34	* @num_bd: number of bidirectional streams
	35	* @num_in: number of input streams
	36	* @num_out: number of output streams
	37	* @num_ch_bd: number of bidirectional stream channels
	38	* @num_ch_bd: number of input stream channels
	39	* @num_ch_bd: number of output stream channels
	40	* @num_pdi: total number of PDIs
	41	* @bd: bidirectional streams
	42	* @in: input streams
	43	* @out: output streams
	44	*/
	45	struct sdw_cdns_streams {
	46	unsigned int num_bd;
	47	unsigned int num_in;
	48	unsigned int num_out;
	49	unsigned int num_ch_bd;
	50	unsigned int num_ch_in;
	51	unsigned int num_ch_out;
	52	unsigned int num_pdi;
	53	struct sdw_cdns_pdi *bd;
	54	struct sdw_cdns_pdi *in;
	55	struct sdw_cdns_pdi *out;
	56	};
	57
	58	/**
	59	* struct sdw_cdns_stream_config: stream configuration
	60	*
	61	* @pcm_bd: number of bidirectional PCM streams supported
	62	* @pcm_in: number of input PCM streams supported
	63	* @pcm_out: number of output PCM streams supported
	64	* @pdm_bd: number of bidirectional PDM streams supported
	65	* @pdm_in: number of input PDM streams supported
	66	* @pdm_out: number of output PDM streams supported
	67	*/
	68	struct sdw_cdns_stream_config {
	69	unsigned int pcm_bd;
	70	unsigned int pcm_in;
	71	unsigned int pcm_out;
	72	unsigned int pdm_bd;
	73	unsigned int pdm_in;
	74	unsigned int pdm_out;
	75	};
	76
5d6b3c8b VK	77	/**
	78	* struct sdw_cdns_dma_data: Cadence DMA data
	79	*
	80	* @name: SoundWire stream name
57a34790 PLB	81	* @stream: stream runtime
57a34790 PLB	82	* @pdi: PDI used for this dai
5d6b3c8b VK	83	* @bus: Bus handle
	84	* @stream_type: Stream type
	85	* @link_id: Master link id
	86	*/
	87	struct sdw_cdns_dma_data {
	88	char *name;
	89	struct sdw_stream_runtime *stream;
57a34790	90	struct sdw_cdns_pdi *pdi;
5d6b3c8b VK	91	struct sdw_bus *bus;
	92	enum sdw_stream_type stream_type;
	93	int link_id;
	94	};
	95
2f52a517 VK	96	/**
	97	* struct sdw_cdns - Cadence driver context
	98	* @dev: Linux device
	99	* @bus: Bus handle
	100	* @instance: instance number
956baa19 SK	101	* @response_buf: SoundWire response buffer
	102	* @tx_complete: Tx completion
	103	* @defer: Defer pointer
07abeff1 VK	104	* @ports: Data ports
	105	* @num_ports: Total number of data ports
	106	* @pcm: PCM streams
	107	* @pdm: PDM streams
2f52a517 VK	108	* @registers: Cadence registers
2f52a517 VK	109	* @link_up: Link status
956baa19	110	* @msg_count: Messages sent on bus
2f52a517 VK	111	*/
	112	struct sdw_cdns {
	113	struct device *dev;
	114	struct sdw_bus bus;
	115	unsigned int instance;
	116
956baa19 SK	117	u32 response_buf[0x80];
	118	struct completion tx_complete;
	119	struct sdw_defer *defer;
	120
07abeff1 VK	121	struct sdw_cdns_port *ports;
	122	int num_ports;
	123
	124	struct sdw_cdns_streams pcm;
	125	struct sdw_cdns_streams pdm;
	126
2f52a517 VK	127	void __iomem *registers;
	128
	129	bool link_up;
956baa19	130	unsigned int msg_count;
2f52a517 VK	131	};
	132
	133	#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
	134
	135	/* Exported symbols */
	136
956baa19 SK	137	int sdw_cdns_probe(struct sdw_cdns *cdns);
	138	extern struct sdw_master_ops sdw_cdns_master_ops;
	139
2f52a517 VK	140	irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
	141	irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
	142
	143	int sdw_cdns_init(struct sdw_cdns *cdns);
07abeff1	144	int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
806a11f0	145	struct sdw_cdns_stream_config config);
956baa19 SK	146	int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
956baa19 SK	147
aa85066e PLB	148	#ifdef CONFIG_DEBUG_FS
	149	void sdw_cdns_debugfs_init(struct sdw_cdns cdns, struct dentry root);
	150	#endif
	151
5d6b3c8b VK	152	int sdw_cdns_get_stream(struct sdw_cdns *cdns,
	153	struct sdw_cdns_streams *stream,
	154	u32 ch, u32 dir);
57a34790 PLB	155	struct sdw_cdns_pdi sdw_cdns_alloc_pdi(struct sdw_cdns cdns,
	156	struct sdw_cdns_streams *stream,
	157	u32 ch, u32 dir);
	158	void sdw_cdns_config_stream(struct sdw_cdns *cdns,
806a11f0	159	u32 ch, u32 dir, struct sdw_cdns_pdi *pdi);
5d6b3c8b	160
5d6b3c8b	161	int sdw_cdns_pcm_set_stream(struct snd_soc_dai *dai,
806a11f0	162	void *stream, int direction);
5d6b3c8b	163	int sdw_cdns_pdm_set_stream(struct snd_soc_dai *dai,
806a11f0	164	void *stream, int direction);
5d6b3c8b VK	165
	166	enum sdw_command_response
	167	cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
	168
c91605f4 SN	169	enum sdw_command_response
c91605f4 SN	170	cdns_xfer_msg(struct sdw_bus bus, struct sdw_msg msg);
2f52a517	171
c91605f4 SN	172	enum sdw_command_response
c91605f4 SN	173	cdns_xfer_msg_defer(struct sdw_bus *bus,
806a11f0	174	struct sdw_msg msg, struct sdw_defer defer);
c91605f4 SN	175
	176	enum sdw_command_response
	177	cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
07abeff1 VK	178
07abeff1 VK	179	int cdns_bus_conf(struct sdw_bus bus, struct sdw_bus_params params);
5d6b3c8b VK	180
5d6b3c8b VK	181	int cdns_set_sdw_stream(struct snd_soc_dai *dai,
806a11f0	182	void *stream, bool pcm, int direction);
2f52a517	183	#endif /* __SDW_CADENCE_H */