projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 07539c1d KM |
1 | /* |
| 2 | * Renesas R-Car SCU support | |
| 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 | #include "rsnd.h" | |
| 12 | ||
| 13 | struct rsnd_scu { | |
| 14 | struct rsnd_scu_platform_info *info; /* rcar_snd.h */ | |
| 15 | struct rsnd_mod mod; | |
| 16 | }; | |
| 17 | ||
| 18 | #define rsnd_mod_to_scu(_mod) \ | |
| 19 | container_of((_mod), struct rsnd_scu, mod) | |
| 20 | ||
| 21 | #define for_each_rsnd_scu(pos, priv, i) \ | |
| 22 | for ((i) = 0; \ | |
| 23 | ((i) < rsnd_scu_nr(priv)) && \ | |
| 24 | ((pos) = (struct rsnd_scu *)(priv)->scu + i); \ | |
| 25 | i++) | |
| 26 | ||
| 27 | static int rsnd_scu_init(struct rsnd_mod *mod, | |
| 28 | struct rsnd_dai *rdai, | |
| 29 | struct rsnd_dai_stream *io) | |
| 30 | { | |
| 31 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
| 32 | struct device *dev = rsnd_priv_to_dev(priv); | |
| 33 | ||
| 34 | dev_dbg(dev, "%s.%d init\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); | |
| 35 | ||
| 36 | return 0; | |
| 37 | } | |
| 38 | ||
| 39 | static int rsnd_scu_quit(struct rsnd_mod *mod, | |
| 40 | struct rsnd_dai *rdai, | |
| 41 | struct rsnd_dai_stream *io) | |
| 42 | { | |
| 43 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
| 44 | struct device *dev = rsnd_priv_to_dev(priv); | |
| 45 | ||
| 46 | dev_dbg(dev, "%s.%d quit\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); | |
| 47 | ||
| 48 | return 0; | |
| 49 | } | |
| 50 | ||
| 51 | static int rsnd_scu_start(struct rsnd_mod *mod, | |
| 52 | struct rsnd_dai *rdai, | |
| 53 | struct rsnd_dai_stream *io) | |
| 54 | { | |
| 55 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
| 56 | struct device *dev = rsnd_priv_to_dev(priv); | |
| 57 | ||
| 58 | dev_dbg(dev, "%s.%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); | |
| 59 | ||
| 60 | return 0; | |
| 61 | } | |
| 62 | ||
| 63 | static int rsnd_scu_stop(struct rsnd_mod *mod, | |
| 64 | struct rsnd_dai *rdai, | |
| 65 | struct rsnd_dai_stream *io) | |
| 66 | { | |
| 67 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
| 68 | struct device *dev = rsnd_priv_to_dev(priv); | |
| 69 | ||
| 70 | dev_dbg(dev, "%s.%d stop\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); | |
| 71 | ||
| 72 | return 0; | |
| 73 | } | |
| 74 | ||
| 75 | static struct rsnd_mod_ops rsnd_scu_ops = { | |
| 76 | .name = "scu", | |
| 77 | .init = rsnd_scu_init, | |
| 78 | .quit = rsnd_scu_quit, | |
| 79 | .start = rsnd_scu_start, | |
| 80 | .stop = rsnd_scu_stop, | |
| 81 | }; | |
| 82 | ||
| 83 | struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id) | |
| 84 | { | |
| 85 | BUG_ON(id < 0 || id >= rsnd_scu_nr(priv)); | |
| 86 | ||
| 87 | return &((struct rsnd_scu *)(priv->scu) + id)->mod; | |
| 88 | } | |
| 89 | ||
| 90 | int rsnd_scu_probe(struct platform_device *pdev, | |
| 91 | struct rcar_snd_info *info, | |
| 92 | struct rsnd_priv *priv) | |
| 93 | { | |
| 94 | struct device *dev = rsnd_priv_to_dev(priv); | |
| 95 | struct rsnd_scu *scu; | |
| 96 | int i, nr; | |
| 97 | ||
| 98 | /* | |
| 99 | * init SCU | |
| 100 | */ | |
| 101 | nr = info->scu_info_nr; | |
| 102 | scu = devm_kzalloc(dev, sizeof(*scu) * nr, GFP_KERNEL); | |
| 103 | if (!scu) { | |
| 104 | dev_err(dev, "SCU allocate failed\n"); | |
| 105 | return -ENOMEM; | |
| 106 | } | |
| 107 | ||
| 108 | priv->scu_nr = nr; | |
| 109 | priv->scu = scu; | |
| 110 | ||
| 111 | for_each_rsnd_scu(scu, priv, i) { | |
| 112 | rsnd_mod_init(priv, &scu->mod, | |
| 113 | &rsnd_scu_ops, i); | |
| 114 | scu->info = &info->scu_info[i]; | |
| 115 | } | |
| 116 | ||
| 117 | dev_dbg(dev, "scu probed\n"); | |
| 118 | ||
| 119 | return 0; | |
| 120 | } | |
| 121 | ||
| 122 | void rsnd_scu_remove(struct platform_device *pdev, | |
| 123 | struct rsnd_priv *priv) | |
| 124 | { | |
| 125 | } |