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/*
* Renesas R-Car
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef RSND_H
#define RSND_H
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/sh_dma.h>
#include <linux/workqueue.h>
#include <sound/rcar_snd.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
/*
* pseudo register
*
* The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
* This driver uses pseudo register in order to hide it.
* see gen1/gen2 for detail
*/
enum rsnd_reg {
/* SRU/SCU/SSIU */
RSND_REG_SSI_MODE0,
RSND_REG_SSI_MODE1,
RSND_REG_SRC_BUSIF_MODE,
RSND_REG_SRC_ROUTE_MODE0,
RSND_REG_SRC_SWRSR,
RSND_REG_SRC_SRCIR,
RSND_REG_SRC_ADINR,
RSND_REG_SRC_IFSCR,
RSND_REG_SRC_IFSVR,
RSND_REG_SRC_SRCCR,
/* ADG */
RSND_REG_BRRA,
RSND_REG_BRRB,
RSND_REG_SSICKR,
RSND_REG_AUDIO_CLK_SEL0,
RSND_REG_AUDIO_CLK_SEL1,
/* SSI */
RSND_REG_SSICR,
RSND_REG_SSISR,
RSND_REG_SSITDR,
RSND_REG_SSIRDR,
RSND_REG_SSIWSR,
/* SHARE see below */
RSND_REG_SHARE01,
RSND_REG_SHARE02,
RSND_REG_SHARE03,
RSND_REG_SHARE04,
RSND_REG_SHARE05,
RSND_REG_SHARE06,
RSND_REG_SHARE07,
RSND_REG_SHARE08,
RSND_REG_SHARE09,
RSND_REG_SHARE10,
RSND_REG_SHARE11,
RSND_REG_SHARE12,
RSND_REG_SHARE13,
RSND_REG_SHARE14,
RSND_REG_SHARE15,
RSND_REG_SHARE16,
RSND_REG_SHARE17,
RSND_REG_SHARE18,
RSND_REG_SHARE19,
RSND_REG_MAX,
};
/* Gen1 only */
#define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
#define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
#define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
#define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
#define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
#define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
#define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
#define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
#define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
/* Gen2 only */
#define RSND_REG_SRC_CTRL RSND_REG_SHARE01
#define RSND_REG_SSI_CTRL RSND_REG_SHARE02
#define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
#define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
#define RSND_REG_INT_ENABLE RSND_REG_SHARE05
#define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
#define RSND_REG_SRC_BSISR RSND_REG_SHARE07
#define RSND_REG_DIV_EN RSND_REG_SHARE08
#define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
#define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
#define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
#define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
#define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
#define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
#define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
#define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
#define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
#define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
#define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
struct rsnd_of_data;
struct rsnd_priv;
struct rsnd_mod;
struct rsnd_dai;
struct rsnd_dai_stream;
/*
* R-Car basic functions
*/
#define rsnd_mod_read(m, r) \
rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
#define rsnd_mod_write(m, r, d) \
rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
#define rsnd_mod_bset(m, r, s, d) \
rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
enum rsnd_reg reg, u32 data);
void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
u32 mask, u32 data);
u32 rsnd_get_adinr(struct rsnd_mod *mod);
/*
* R-Car DMA
*/
struct rsnd_dma {
struct sh_dmae_slave slave;
struct work_struct work;
struct dma_chan *chan;
enum dma_data_direction dir;
int submit_loop;
int offset; /* it cares A/B plane */
};
void rsnd_dma_start(struct rsnd_dma *dma);
void rsnd_dma_stop(struct rsnd_dma *dma);
int rsnd_dma_available(struct rsnd_dma *dma);
int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
int is_play, int id);
void rsnd_dma_quit(struct rsnd_priv *priv,
struct rsnd_dma *dma);
/*
* R-Car sound mod
*/
enum rsnd_mod_type {
RSND_MOD_SRC = 0,
RSND_MOD_SSI,
RSND_MOD_MAX,
};
struct rsnd_mod_ops {
char *name;
int (*probe)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*remove)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*init)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*quit)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*start)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
int (*stop)(struct rsnd_mod *mod,
struct rsnd_dai *rdai);
};
struct rsnd_dai_stream;
struct rsnd_mod {
int id;
enum rsnd_mod_type type;
struct rsnd_priv *priv;
struct rsnd_mod_ops *ops;
struct rsnd_dma dma;
struct rsnd_dai_stream *io;
};
#define rsnd_mod_to_priv(mod) ((mod)->priv)
#define rsnd_mod_to_dma(mod) (&(mod)->dma)
#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
#define rsnd_mod_to_io(mod) ((mod)->io)
#define rsnd_mod_id(mod) ((mod)->id)
void rsnd_mod_init(struct rsnd_priv *priv,
struct rsnd_mod *mod,
struct rsnd_mod_ops *ops,
enum rsnd_mod_type type,
int id);
char *rsnd_mod_name(struct rsnd_mod *mod);
/*
* R-Car sound DAI
*/
#define RSND_DAI_NAME_SIZE 16
struct rsnd_dai_stream {
struct snd_pcm_substream *substream;
struct rsnd_mod *mod[RSND_MOD_MAX];
struct rsnd_dai_path_info *info; /* rcar_snd.h */
int byte_pos;
int period_pos;
int byte_per_period;
int next_period_byte;
};
#define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
#define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
struct rsnd_dai {
char name[RSND_DAI_NAME_SIZE];
struct rsnd_dai_platform_info *info; /* rcar_snd.h */
struct rsnd_dai_stream playback;
struct rsnd_dai_stream capture;
unsigned int clk_master:1;
unsigned int bit_clk_inv:1;
unsigned int frm_clk_inv:1;
unsigned int sys_delay:1;
unsigned int data_alignment:1;
};
#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
#define for_each_rsnd_dai(rdai, priv, i) \
for (i = 0; \
(i < rsnd_rdai_nr(priv)) && \
((rdai) = rsnd_dai_get(priv, i)); \
i++)
struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
#define rsnd_io_to_runtime(io) ((io)->substream->runtime)
void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
#define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
/*
* R-Car Gen1/Gen2
*/
int rsnd_gen_probe(struct platform_device *pdev,
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv);
void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
struct rsnd_mod *mod,
enum rsnd_reg reg);
#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
/*
* R-Car ADG
*/
int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
int rsnd_adg_probe(struct platform_device *pdev,
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv);
int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
struct rsnd_mod *mod,
unsigned int src_rate,
unsigned int dst_rate);
int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
struct rsnd_dai *rdai,
struct rsnd_dai_stream *io,
unsigned int src_rate,
unsigned int dst_rate);
int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
struct rsnd_dai *rdai,
struct rsnd_dai_stream *io);
/*
* R-Car sound priv
*/
struct rsnd_of_data {
u32 flags;
};
struct rsnd_priv {
struct device *dev;
struct rcar_snd_info *info;
spinlock_t lock;
/*
* below value will be filled on rsnd_gen_probe()
*/
void *gen;
/*
* below value will be filled on rsnd_src_probe()
*/
void *src;
int src_nr;
/*
* below value will be filled on rsnd_adg_probe()
*/
void *adg;
/*
* below value will be filled on rsnd_ssi_probe()
*/
void *ssi;
int ssi_nr;
/*
* below value will be filled on rsnd_dai_probe()
*/
struct snd_soc_dai_driver *daidrv;
struct rsnd_dai *rdai;
int rdai_nr;
};
#define rsnd_priv_to_dev(priv) ((priv)->dev)
#define rsnd_priv_to_info(priv) ((priv)->info)
#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
#define rsnd_info_is_playback(priv, type) \
({ \
struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
int i, is_play = 0; \
for (i = 0; i < info->dai_info_nr; i++) { \
if (info->dai_info[i].playback.type == (type)->info) { \
is_play = 1; \
break; \
} \
} \
is_play; \
})
/*
* R-Car SRC
*/
int rsnd_src_probe(struct platform_device *pdev,
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv);
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
struct rsnd_dai_stream *io,
struct snd_pcm_runtime *runtime);
int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
struct rsnd_dai *rdai);
int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
struct rsnd_dai *rdai);
#define rsnd_src_nr(priv) ((priv)->src_nr)
/*
* R-Car SSI
*/
int rsnd_ssi_probe(struct platform_device *pdev,
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv);
struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
#endif
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