303 lines
7.9 KiB
C
303 lines
7.9 KiB
C
/*
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* Renesas R-Car
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*
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* Copyright (C) 2013 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef RSND_H
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#define RSND_H
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/io.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/sh_dma.h>
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#include <linux/workqueue.h>
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#include <sound/rcar_snd.h>
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#include <sound/soc.h>
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#include <sound/pcm_params.h>
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/*
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* pseudo register
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*
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* The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
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* This driver uses pseudo register in order to hide it.
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* see gen1/gen2 for detail
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*/
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enum rsnd_reg {
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/* SRU/SCU */
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RSND_REG_SRC_ROUTE_SEL,
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RSND_REG_SRC_TMG_SEL0,
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RSND_REG_SRC_TMG_SEL1,
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RSND_REG_SRC_TMG_SEL2,
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RSND_REG_SRC_CTRL,
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RSND_REG_SSI_MODE0,
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RSND_REG_SSI_MODE1,
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RSND_REG_BUSIF_MODE,
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RSND_REG_BUSIF_ADINR,
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/* ADG */
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RSND_REG_BRRA,
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RSND_REG_BRRB,
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RSND_REG_SSICKR,
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RSND_REG_AUDIO_CLK_SEL0,
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RSND_REG_AUDIO_CLK_SEL1,
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RSND_REG_AUDIO_CLK_SEL2,
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RSND_REG_AUDIO_CLK_SEL3,
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RSND_REG_AUDIO_CLK_SEL4,
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RSND_REG_AUDIO_CLK_SEL5,
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/* SSI */
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RSND_REG_SSICR,
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RSND_REG_SSISR,
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RSND_REG_SSITDR,
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RSND_REG_SSIRDR,
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RSND_REG_SSIWSR,
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RSND_REG_MAX,
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};
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struct rsnd_priv;
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struct rsnd_mod;
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struct rsnd_dai;
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struct rsnd_dai_stream;
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/*
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* R-Car basic functions
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*/
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#define rsnd_mod_read(m, r) \
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rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
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#define rsnd_mod_write(m, r, d) \
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rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
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#define rsnd_mod_bset(m, r, s, d) \
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rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
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#define rsnd_priv_read(p, r) rsnd_read(p, NULL, RSND_REG_##r)
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#define rsnd_priv_write(p, r, d) rsnd_write(p, NULL, RSND_REG_##r, d)
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#define rsnd_priv_bset(p, r, s, d) rsnd_bset(p, NULL, RSND_REG_##r, s, d)
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u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
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void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
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enum rsnd_reg reg, u32 data);
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void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
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u32 mask, u32 data);
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/*
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* R-Car DMA
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*/
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struct rsnd_dma {
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struct rsnd_priv *priv;
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struct sh_dmae_slave slave;
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struct work_struct work;
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struct dma_chan *chan;
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enum dma_data_direction dir;
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int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len);
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int (*complete)(struct rsnd_dma *dma);
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int submit_loop;
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};
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void rsnd_dma_start(struct rsnd_dma *dma);
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void rsnd_dma_stop(struct rsnd_dma *dma);
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int rsnd_dma_available(struct rsnd_dma *dma);
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int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
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int is_play, int id,
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int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len),
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int (*complete)(struct rsnd_dma *dma));
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void rsnd_dma_quit(struct rsnd_priv *priv,
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struct rsnd_dma *dma);
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/*
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* R-Car sound mod
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*/
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struct rsnd_mod_ops {
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char *name;
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int (*init)(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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int (*quit)(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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int (*start)(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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int (*stop)(struct rsnd_mod *mod,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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};
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struct rsnd_mod {
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int id;
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struct rsnd_priv *priv;
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struct rsnd_mod_ops *ops;
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struct list_head list; /* connect to rsnd_dai playback/capture */
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struct rsnd_dma dma;
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};
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#define rsnd_mod_to_priv(mod) ((mod)->priv)
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#define rsnd_mod_to_dma(mod) (&(mod)->dma)
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#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
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#define rsnd_mod_id(mod) ((mod)->id)
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#define for_each_rsnd_mod(pos, n, io) \
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list_for_each_entry_safe(pos, n, &(io)->head, list)
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#define rsnd_mod_call(mod, func, rdai, io) \
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(!(mod) ? -ENODEV : \
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!((mod)->ops->func) ? 0 : \
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(mod)->ops->func(mod, rdai, io))
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void rsnd_mod_init(struct rsnd_priv *priv,
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struct rsnd_mod *mod,
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struct rsnd_mod_ops *ops,
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int id);
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char *rsnd_mod_name(struct rsnd_mod *mod);
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/*
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* R-Car sound DAI
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*/
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#define RSND_DAI_NAME_SIZE 16
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struct rsnd_dai_stream {
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struct list_head head; /* head of rsnd_mod list */
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struct snd_pcm_substream *substream;
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int byte_pos;
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int period_pos;
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int byte_per_period;
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int next_period_byte;
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};
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struct rsnd_dai {
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char name[RSND_DAI_NAME_SIZE];
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struct rsnd_dai_platform_info *info; /* rcar_snd.h */
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struct rsnd_dai_stream playback;
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struct rsnd_dai_stream capture;
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int clk_master:1;
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int bit_clk_inv:1;
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int frm_clk_inv:1;
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int sys_delay:1;
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int data_alignment:1;
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};
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#define rsnd_dai_nr(priv) ((priv)->dai_nr)
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#define for_each_rsnd_dai(rdai, priv, i) \
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for (i = 0, (rdai) = rsnd_dai_get(priv, i); \
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i < rsnd_dai_nr(priv); \
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i++, (rdai) = rsnd_dai_get(priv, i))
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struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
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int rsnd_dai_disconnect(struct rsnd_mod *mod);
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int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod,
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struct rsnd_dai_stream *io);
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int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
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int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
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#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
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#define rsnd_io_to_runtime(io) ((io)->substream->runtime)
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void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
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int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
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/*
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* R-Car Gen1/Gen2
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*/
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int rsnd_gen_probe(struct platform_device *pdev,
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struct rcar_snd_info *info,
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struct rsnd_priv *priv);
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void rsnd_gen_remove(struct platform_device *pdev,
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struct rsnd_priv *priv);
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int rsnd_gen_path_init(struct rsnd_priv *priv,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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int rsnd_gen_path_exit(struct rsnd_priv *priv,
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struct rsnd_dai *rdai,
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struct rsnd_dai_stream *io);
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void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
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struct rsnd_mod *mod,
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enum rsnd_reg reg);
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#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
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#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
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/*
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* R-Car ADG
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*/
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int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
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int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
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int rsnd_adg_probe(struct platform_device *pdev,
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struct rcar_snd_info *info,
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struct rsnd_priv *priv);
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void rsnd_adg_remove(struct platform_device *pdev,
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struct rsnd_priv *priv);
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/*
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* R-Car sound priv
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*/
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struct rsnd_priv {
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struct device *dev;
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struct rcar_snd_info *info;
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spinlock_t lock;
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/*
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* below value will be filled on rsnd_gen_probe()
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*/
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void *gen;
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/*
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* below value will be filled on rsnd_scu_probe()
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*/
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void *scu;
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int scu_nr;
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/*
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* below value will be filled on rsnd_adg_probe()
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*/
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void *adg;
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/*
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* below value will be filled on rsnd_ssi_probe()
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*/
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void *ssiu;
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/*
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* below value will be filled on rsnd_dai_probe()
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*/
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struct snd_soc_dai_driver *daidrv;
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struct rsnd_dai *rdai;
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int dai_nr;
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};
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#define rsnd_priv_to_dev(priv) ((priv)->dev)
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#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
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#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
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/*
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* R-Car SCU
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*/
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int rsnd_scu_probe(struct platform_device *pdev,
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struct rcar_snd_info *info,
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struct rsnd_priv *priv);
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void rsnd_scu_remove(struct platform_device *pdev,
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struct rsnd_priv *priv);
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struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
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#define rsnd_scu_nr(priv) ((priv)->scu_nr)
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/*
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* R-Car SSI
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*/
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int rsnd_ssi_probe(struct platform_device *pdev,
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struct rcar_snd_info *info,
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struct rsnd_priv *priv);
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void rsnd_ssi_remove(struct platform_device *pdev,
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struct rsnd_priv *priv);
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struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
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struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
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int dai_id, int is_play);
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#endif
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