/* * Renesas R-Car * * Copyright (C) 2013 Renesas Solutions Corp. * Kuninori Morimoto * * 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 #include #include #include #include #include #include #include #include #include #include /* * 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 */ RSND_REG_SRC_ROUTE_SEL, RSND_REG_SRC_TMG_SEL0, RSND_REG_SRC_TMG_SEL1, RSND_REG_SRC_TMG_SEL2, RSND_REG_SRC_CTRL, RSND_REG_SSI_MODE0, RSND_REG_SSI_MODE1, RSND_REG_BUSIF_MODE, RSND_REG_BUSIF_ADINR, /* ADG */ RSND_REG_BRRA, RSND_REG_BRRB, RSND_REG_SSICKR, RSND_REG_AUDIO_CLK_SEL0, RSND_REG_AUDIO_CLK_SEL1, RSND_REG_AUDIO_CLK_SEL2, RSND_REG_AUDIO_CLK_SEL3, RSND_REG_AUDIO_CLK_SEL4, RSND_REG_AUDIO_CLK_SEL5, /* SSI */ RSND_REG_SSICR, RSND_REG_SSISR, RSND_REG_SSITDR, RSND_REG_SSIRDR, RSND_REG_SSIWSR, RSND_REG_MAX, }; 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) #define rsnd_priv_read(p, r) rsnd_read(p, NULL, RSND_REG_##r) #define rsnd_priv_write(p, r, d) rsnd_write(p, NULL, RSND_REG_##r, d) #define rsnd_priv_bset(p, r, s, d) rsnd_bset(p, NULL, 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); /* * R-Car DMA */ struct rsnd_dma { struct rsnd_priv *priv; struct sh_dmae_slave slave; struct work_struct work; struct dma_chan *chan; enum dma_data_direction dir; int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len); int (*complete)(struct rsnd_dma *dma); int submit_loop; }; 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, int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len), int (*complete)(struct rsnd_dma *dma)); void rsnd_dma_quit(struct rsnd_priv *priv, struct rsnd_dma *dma); /* * R-Car sound mod */ struct rsnd_mod_ops { char *name; int (*init)(struct rsnd_mod *mod, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); int (*quit)(struct rsnd_mod *mod, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); int (*start)(struct rsnd_mod *mod, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); int (*stop)(struct rsnd_mod *mod, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); }; struct rsnd_mod { int id; struct rsnd_priv *priv; struct rsnd_mod_ops *ops; struct list_head list; /* connect to rsnd_dai playback/capture */ struct rsnd_dma dma; }; #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_id(mod) ((mod)->id) #define for_each_rsnd_mod(pos, n, io) \ list_for_each_entry_safe(pos, n, &(io)->head, list) #define rsnd_mod_call(mod, func, rdai, io) \ (!(mod) ? -ENODEV : \ !((mod)->ops->func) ? 0 : \ (mod)->ops->func(mod, rdai, io)) void rsnd_mod_init(struct rsnd_priv *priv, struct rsnd_mod *mod, struct rsnd_mod_ops *ops, 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 list_head head; /* head of rsnd_mod list */ struct snd_pcm_substream *substream; int byte_pos; int period_pos; int byte_per_period; int next_period_byte; }; 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; int clk_master:1; int bit_clk_inv:1; int frm_clk_inv:1; int sys_delay:1; int data_alignment:1; }; #define rsnd_dai_nr(priv) ((priv)->dai_nr) #define for_each_rsnd_dai(rdai, priv, i) \ for (i = 0, (rdai) = rsnd_dai_get(priv, i); \ i < rsnd_dai_nr(priv); \ i++, (rdai) = rsnd_dai_get(priv, i)) struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id); int rsnd_dai_disconnect(struct rsnd_mod *mod); int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod, struct rsnd_dai_stream *io); 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); /* * R-Car Gen1/Gen2 */ int rsnd_gen_probe(struct platform_device *pdev, struct rcar_snd_info *info, struct rsnd_priv *priv); void rsnd_gen_remove(struct platform_device *pdev, struct rsnd_priv *priv); int rsnd_gen_path_init(struct rsnd_priv *priv, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); int rsnd_gen_path_exit(struct rsnd_priv *priv, struct rsnd_dai *rdai, struct rsnd_dai_stream *io); 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, struct rcar_snd_info *info, struct rsnd_priv *priv); void rsnd_adg_remove(struct platform_device *pdev, struct rsnd_priv *priv); /* * R-Car sound priv */ 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_scu_probe() */ void *scu; int scu_nr; /* * below value will be filled on rsnd_adg_probe() */ void *adg; /* * below value will be filled on rsnd_ssi_probe() */ void *ssiu; /* * below value will be filled on rsnd_dai_probe() */ struct snd_soc_dai_driver *daidrv; struct rsnd_dai *rdai; int dai_nr; }; #define rsnd_priv_to_dev(priv) ((priv)->dev) #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags) #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags) /* * R-Car SCU */ int rsnd_scu_probe(struct platform_device *pdev, struct rcar_snd_info *info, struct rsnd_priv *priv); void rsnd_scu_remove(struct platform_device *pdev, struct rsnd_priv *priv); struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id); #define rsnd_scu_nr(priv) ((priv)->scu_nr) /* * R-Car SSI */ int rsnd_ssi_probe(struct platform_device *pdev, struct rcar_snd_info *info, struct rsnd_priv *priv); void rsnd_ssi_remove(struct platform_device *pdev, struct rsnd_priv *priv); struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id); struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv, int dai_id, int is_play); #endif