ssi.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0
//
// Renesas R-Car SSIU/SSI support
//
// Copyright (C) 2013 Renesas Solutions Corp.
// Kuninori Morimoto <[email protected]>
//
// Based on fsi.c
// Kuninori Morimoto <[email protected]>

/*
 * you can enable below define if you don't need
 * SSI interrupt status debug message when debugging
 * see rsnd_print_irq_status()
 *
 * #define RSND_DEBUG_NO_IRQ_STATUS 1
 */

#include <sound/simple_card_utils.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/delay.h>
#include "rsnd.h"
#define RSND_SSI_NAME_SIZE …

/*
 * SSICR
 */
#define FORCE …
#define DMEN …
#define UIEN …
#define OIEN …
#define IIEN …
#define DIEN …
#define CHNL_4 …
#define CHNL_6 …
#define CHNL_8 …
#define DWL_MASK …
#define DWL_8 …
#define DWL_16 …
#define DWL_18 …
#define DWL_20 …
#define DWL_22 …
#define DWL_24 …
#define DWL_32 …

/*
 * System word length
 */
#define SWL_16 …
#define SWL_24 …
#define SWL_32 …

#define SCKD …
#define SWSD …
#define SCKP …
#define SWSP …
#define SDTA …
#define PDTA …
#define DEL …
#define CKDV(v) …
#define TRMD …
#define EN …

/*
 * SSISR
 */
#define UIRQ …
#define OIRQ …
#define IIRQ …
#define DIRQ …

/*
 * SSIWSR
 */
#define CONT …
#define WS_MODE …

#define SSI_NAME …

struct rsnd_ssi { … };

/* flags */
#define RSND_SSI_CLK_PIN_SHARE …
#define RSND_SSI_NO_BUSIF …
#define RSND_SSI_PROBED …

#define for_each_rsnd_ssi(pos, priv, i) …

#define rsnd_ssi_get(priv, id) …
#define rsnd_ssi_nr(priv) …
#define rsnd_mod_to_ssi(_mod) …
#define rsnd_ssi_is_parent(ssi, io) …
#define rsnd_ssi_is_multi_secondary(mod, io) …
#define rsnd_ssi_is_run_mods(mod, io) …
#define rsnd_ssi_can_output_clk(mod) …

int rsnd_ssi_use_busif(struct rsnd_dai_stream *io)
{ … }

static void rsnd_ssi_status_clear(struct rsnd_mod *mod)
{ … }

static u32 rsnd_ssi_status_get(struct rsnd_mod *mod)
{ … }

static void rsnd_ssi_status_check(struct rsnd_mod *mod,
				  u32 bit)
{ … }

static u32 rsnd_ssi_multi_secondaries(struct rsnd_dai_stream *io)
{ … }

static u32 rsnd_ssi_run_mods(struct rsnd_dai_stream *io)
{ … }

u32 rsnd_ssi_multi_secondaries_runtime(struct rsnd_dai_stream *io)
{ … }

static u32 rsnd_rdai_width_to_swl(struct rsnd_dai *rdai)
{ … }

unsigned int rsnd_ssi_clk_query(struct rsnd_dai *rdai,
		       int param1, int param2, int *idx)
{ … }

static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
				     struct rsnd_dai_stream *io)
{ … }

static void rsnd_ssi_master_clk_stop(struct rsnd_mod *mod,
				     struct rsnd_dai_stream *io)
{ … }

static void rsnd_ssi_config_init(struct rsnd_mod *mod,
				struct rsnd_dai_stream *io)
{ … }

static void rsnd_ssi_register_setup(struct rsnd_mod *mod)
{ … }

/*
 *	SSI mod common functions
 */
static int rsnd_ssi_init(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_quit(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_hw_params(struct rsnd_mod *mod,
			      struct rsnd_dai_stream *io,
			      struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params)
{ … }

static int rsnd_ssi_start(struct rsnd_mod *mod,
			  struct rsnd_dai_stream *io,
			  struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_stop(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_irq(struct rsnd_mod *mod,
			struct rsnd_dai_stream *io,
			struct rsnd_priv *priv,
			int enable)
{ … }

static bool rsnd_ssi_pio_interrupt(struct rsnd_mod *mod,
				   struct rsnd_dai_stream *io);
static void __rsnd_ssi_interrupt(struct rsnd_mod *mod,
				 struct rsnd_dai_stream *io)
{ … }

static irqreturn_t rsnd_ssi_interrupt(int irq, void *data)
{ … }

static u32 *rsnd_ssi_get_status(struct rsnd_mod *mod,
				struct rsnd_dai_stream *io,
				enum rsnd_mod_type type)
{ … }

/*
 *		SSI PIO
 */
static void rsnd_ssi_parent_attach(struct rsnd_mod *mod,
				   struct rsnd_dai_stream *io)
{ … }

static int rsnd_ssi_pcm_new(struct rsnd_mod *mod,
			    struct rsnd_dai_stream *io,
			    struct snd_soc_pcm_runtime *rtd)
{ … }

static int rsnd_ssi_common_probe(struct rsnd_mod *mod,
				 struct rsnd_dai_stream *io,
				 struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_common_remove(struct rsnd_mod *mod,
				  struct rsnd_dai_stream *io,
				  struct rsnd_priv *priv)
{ … }

/*
 *	SSI PIO functions
 */
static bool rsnd_ssi_pio_interrupt(struct rsnd_mod *mod,
				   struct rsnd_dai_stream *io)
{ … }

static int rsnd_ssi_pio_init(struct rsnd_mod *mod,
			     struct rsnd_dai_stream *io,
			     struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_pio_pointer(struct rsnd_mod *mod,
			    struct rsnd_dai_stream *io,
			    snd_pcm_uframes_t *pointer)
{ … }

static struct rsnd_mod_ops rsnd_ssi_pio_ops = …;

static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
			      struct rsnd_dai_stream *io,
			      struct rsnd_priv *priv)
{ … }

static int rsnd_ssi_fallback(struct rsnd_mod *mod,
			     struct rsnd_dai_stream *io,
			     struct rsnd_priv *priv)
{ … }

static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_dai_stream *io,
					 struct rsnd_mod *mod)
{ … }

#ifdef CONFIG_DEBUG_FS
static void rsnd_ssi_debug_info(struct seq_file *m,
				struct rsnd_dai_stream *io,
				struct rsnd_mod *mod)
{ … }
#define DEBUG_INFO …
#else
#define DEBUG_INFO
#endif

static struct rsnd_mod_ops rsnd_ssi_dma_ops = …;

int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod)
{ … }

/*
 *		ssi mod function
 */
static void rsnd_ssi_connect(struct rsnd_mod *mod,
			     struct rsnd_dai_stream *io)
{ … }

void rsnd_parse_connect_ssi(struct rsnd_dai *rdai,
			    struct device_node *playback,
			    struct device_node *capture)
{ … }

struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
{ … }

int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
{ … }

int rsnd_ssi_probe(struct rsnd_priv *priv)
{ … }

void rsnd_ssi_remove(struct rsnd_priv *priv)
{ … }
linux/sound/soc/sh/rcar/ssi.c
