95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
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/*
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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/io.h>
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#include <linux/list.h>
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#include <linux/module.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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struct rsnd_priv;
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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 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_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
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#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
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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 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_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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#endif
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