| Kuninori Morimoto | 1536a96 | 2013-07-21 21:35:52 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Renesas R-Car |
| 3 | * |
| 4 | * Copyright (C) 2013 Renesas Solutions Corp. |
| 5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | #ifndef RSND_H |
| 12 | #define RSND_H |
| 13 | |
| 14 | #include <linux/clk.h> |
| 15 | #include <linux/device.h> |
| 16 | #include <linux/io.h> |
| 17 | #include <linux/list.h> |
| 18 | #include <linux/module.h> |
| 19 | #include <sound/rcar_snd.h> |
| 20 | #include <sound/soc.h> |
| 21 | #include <sound/pcm_params.h> |
| 22 | |
| 23 | /* |
| 24 | * pseudo register |
| 25 | * |
| 26 | * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different. |
| 27 | * This driver uses pseudo register in order to hide it. |
| 28 | * see gen1/gen2 for detail |
| 29 | */ |
| 30 | struct rsnd_priv; |
| 31 | struct rsnd_dai; |
| 32 | struct rsnd_dai_stream; |
| 33 | |
| 34 | /* |
| 35 | * R-Car sound DAI |
| 36 | */ |
| 37 | #define RSND_DAI_NAME_SIZE 16 |
| 38 | struct rsnd_dai_stream { |
| 39 | struct list_head head; /* head of rsnd_mod list */ |
| 40 | struct snd_pcm_substream *substream; |
| 41 | int byte_pos; |
| 42 | int period_pos; |
| 43 | int byte_per_period; |
| 44 | int next_period_byte; |
| 45 | }; |
| 46 | |
| 47 | struct rsnd_dai { |
| 48 | char name[RSND_DAI_NAME_SIZE]; |
| 49 | struct rsnd_dai_platform_info *info; /* rcar_snd.h */ |
| 50 | struct rsnd_dai_stream playback; |
| 51 | struct rsnd_dai_stream capture; |
| 52 | |
| 53 | int clk_master:1; |
| 54 | int bit_clk_inv:1; |
| 55 | int frm_clk_inv:1; |
| 56 | int sys_delay:1; |
| 57 | int data_alignment:1; |
| 58 | }; |
| 59 | |
| 60 | #define rsnd_dai_nr(priv) ((priv)->dai_nr) |
| 61 | #define for_each_rsnd_dai(rdai, priv, i) \ |
| 62 | for (i = 0, (rdai) = rsnd_dai_get(priv, i); \ |
| 63 | i < rsnd_dai_nr(priv); \ |
| 64 | i++, (rdai) = rsnd_dai_get(priv, i)) |
| 65 | |
| 66 | struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id); |
| 67 | int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io); |
| 68 | #define rsnd_dai_get_platform_info(rdai) ((rdai)->info) |
| 69 | |
| 70 | void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt); |
| 71 | int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional); |
| 72 | |
| 73 | /* |
| 74 | * R-Car sound priv |
| 75 | */ |
| 76 | struct rsnd_priv { |
| 77 | |
| 78 | struct device *dev; |
| 79 | struct rcar_snd_info *info; |
| 80 | spinlock_t lock; |
| 81 | |
| 82 | /* |
| 83 | * below value will be filled on rsnd_dai_probe() |
| 84 | */ |
| 85 | struct snd_soc_dai_driver *daidrv; |
| 86 | struct rsnd_dai *rdai; |
| 87 | int dai_nr; |
| 88 | }; |
| 89 | |
| 90 | #define rsnd_priv_to_dev(priv) ((priv)->dev) |
| 91 | #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags) |
| 92 | #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags) |
| 93 | |
| 94 | #endif |