| /* |
| * 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/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 */ |
| RSND_REG_SSI_MODE0, |
| RSND_REG_SSI_MODE1, |
| |
| /* 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); |
| |
| /* |
| * 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 |