Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * mix.c |
| 3 | * |
| 4 | * Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | #include "rsnd.h" |
| 11 | |
| 12 | #define MIX_NAME_SIZE 16 |
| 13 | #define MIX_NAME "mix" |
| 14 | |
| 15 | struct rsnd_mix { |
| 16 | struct rsnd_mix_platform_info *info; /* rcar_snd.h */ |
| 17 | struct rsnd_mod mod; |
| 18 | }; |
| 19 | |
| 20 | #define rsnd_mix_nr(priv) ((priv)->mix_nr) |
| 21 | #define for_each_rsnd_mix(pos, priv, i) \ |
| 22 | for ((i) = 0; \ |
| 23 | ((i) < rsnd_mix_nr(priv)) && \ |
| 24 | ((pos) = (struct rsnd_mix *)(priv)->mix + i); \ |
| 25 | i++) |
| 26 | |
| 27 | |
| 28 | static void rsnd_mix_soft_reset(struct rsnd_mod *mod) |
| 29 | { |
| 30 | rsnd_mod_write(mod, MIX_SWRSR, 0); |
| 31 | rsnd_mod_write(mod, MIX_SWRSR, 1); |
| 32 | } |
| 33 | |
| 34 | #define rsnd_mix_initialize_lock(mod) __rsnd_mix_initialize_lock(mod, 1) |
| 35 | #define rsnd_mix_initialize_unlock(mod) __rsnd_mix_initialize_lock(mod, 0) |
| 36 | static void __rsnd_mix_initialize_lock(struct rsnd_mod *mod, u32 enable) |
| 37 | { |
| 38 | rsnd_mod_write(mod, MIX_MIXIR, enable); |
| 39 | } |
| 40 | |
| 41 | static void rsnd_mix_volume_update(struct rsnd_dai_stream *io, |
| 42 | struct rsnd_mod *mod) |
| 43 | { |
| 44 | |
| 45 | /* Disable MIX dB setting */ |
| 46 | rsnd_mod_write(mod, MIX_MDBER, 0); |
| 47 | |
| 48 | rsnd_mod_write(mod, MIX_MDBAR, 0); |
| 49 | rsnd_mod_write(mod, MIX_MDBBR, 0); |
| 50 | rsnd_mod_write(mod, MIX_MDBCR, 0); |
| 51 | rsnd_mod_write(mod, MIX_MDBDR, 0); |
| 52 | |
| 53 | /* Enable MIX dB setting */ |
| 54 | rsnd_mod_write(mod, MIX_MDBER, 1); |
| 55 | } |
| 56 | |
| 57 | static int rsnd_mix_init(struct rsnd_mod *mod, |
| 58 | struct rsnd_dai_stream *io, |
| 59 | struct rsnd_priv *priv) |
| 60 | { |
Kuninori Morimoto | c992934 | 2015-10-22 03:15:04 +0000 | [diff] [blame^] | 61 | rsnd_mod_power_on(mod); |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 62 | |
| 63 | rsnd_mix_soft_reset(mod); |
| 64 | |
| 65 | rsnd_mix_initialize_lock(mod); |
| 66 | |
| 67 | rsnd_mod_write(mod, MIX_ADINR, rsnd_get_adinr_chan(mod, io)); |
| 68 | |
| 69 | rsnd_path_parse(priv, io); |
| 70 | |
| 71 | /* volume step */ |
| 72 | rsnd_mod_write(mod, MIX_MIXMR, 0); |
| 73 | rsnd_mod_write(mod, MIX_MVPDR, 0); |
| 74 | |
| 75 | rsnd_mix_volume_update(io, mod); |
| 76 | |
| 77 | rsnd_mix_initialize_unlock(mod); |
| 78 | |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | static int rsnd_mix_quit(struct rsnd_mod *mod, |
| 83 | struct rsnd_dai_stream *io, |
| 84 | struct rsnd_priv *priv) |
| 85 | { |
Kuninori Morimoto | c992934 | 2015-10-22 03:15:04 +0000 | [diff] [blame^] | 86 | rsnd_mod_power_off(mod); |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static struct rsnd_mod_ops rsnd_mix_ops = { |
| 92 | .name = MIX_NAME, |
| 93 | .init = rsnd_mix_init, |
| 94 | .quit = rsnd_mix_quit, |
| 95 | }; |
| 96 | |
| 97 | struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id) |
| 98 | { |
| 99 | if (WARN_ON(id < 0 || id >= rsnd_mix_nr(priv))) |
| 100 | id = 0; |
| 101 | |
Kuninori Morimoto | b76e218 | 2015-09-10 07:02:21 +0000 | [diff] [blame] | 102 | return rsnd_mod_get((struct rsnd_mix *)(priv->mix) + id); |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | static void rsnd_of_parse_mix(struct platform_device *pdev, |
| 106 | const struct rsnd_of_data *of_data, |
| 107 | struct rsnd_priv *priv) |
| 108 | { |
| 109 | struct device_node *node; |
| 110 | struct rsnd_mix_platform_info *mix_info; |
| 111 | struct rcar_snd_info *info = rsnd_priv_to_info(priv); |
| 112 | struct device *dev = &pdev->dev; |
| 113 | int nr; |
| 114 | |
| 115 | if (!of_data) |
| 116 | return; |
| 117 | |
| 118 | node = of_get_child_by_name(dev->of_node, "rcar_sound,mix"); |
| 119 | if (!node) |
| 120 | return; |
| 121 | |
| 122 | nr = of_get_child_count(node); |
| 123 | if (!nr) |
| 124 | goto rsnd_of_parse_mix_end; |
| 125 | |
| 126 | mix_info = devm_kzalloc(dev, |
| 127 | sizeof(struct rsnd_mix_platform_info) * nr, |
| 128 | GFP_KERNEL); |
| 129 | if (!mix_info) { |
| 130 | dev_err(dev, "mix info allocation error\n"); |
| 131 | goto rsnd_of_parse_mix_end; |
| 132 | } |
| 133 | |
| 134 | info->mix_info = mix_info; |
| 135 | info->mix_info_nr = nr; |
| 136 | |
| 137 | rsnd_of_parse_mix_end: |
| 138 | of_node_put(node); |
| 139 | |
| 140 | } |
| 141 | |
| 142 | int rsnd_mix_probe(struct platform_device *pdev, |
| 143 | const struct rsnd_of_data *of_data, |
| 144 | struct rsnd_priv *priv) |
| 145 | { |
| 146 | struct rcar_snd_info *info = rsnd_priv_to_info(priv); |
| 147 | struct device *dev = rsnd_priv_to_dev(priv); |
| 148 | struct rsnd_mix *mix; |
| 149 | struct clk *clk; |
| 150 | char name[MIX_NAME_SIZE]; |
| 151 | int i, nr, ret; |
| 152 | |
| 153 | /* This driver doesn't support Gen1 at this point */ |
Kuninori Morimoto | 8a98b42 | 2015-10-15 03:25:28 +0000 | [diff] [blame] | 154 | if (rsnd_is_gen1(priv)) |
| 155 | return 0; |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 156 | |
| 157 | rsnd_of_parse_mix(pdev, of_data, priv); |
| 158 | |
| 159 | nr = info->mix_info_nr; |
| 160 | if (!nr) |
| 161 | return 0; |
| 162 | |
| 163 | mix = devm_kzalloc(dev, sizeof(*mix) * nr, GFP_KERNEL); |
| 164 | if (!mix) |
| 165 | return -ENOMEM; |
| 166 | |
| 167 | priv->mix_nr = nr; |
| 168 | priv->mix = mix; |
| 169 | |
| 170 | for_each_rsnd_mix(mix, priv, i) { |
| 171 | snprintf(name, MIX_NAME_SIZE, "%s.%d", |
| 172 | MIX_NAME, i); |
| 173 | |
| 174 | clk = devm_clk_get(dev, name); |
| 175 | if (IS_ERR(clk)) |
| 176 | return PTR_ERR(clk); |
| 177 | |
| 178 | mix->info = &info->mix_info[i]; |
| 179 | |
Kuninori Morimoto | b76e218 | 2015-09-10 07:02:21 +0000 | [diff] [blame] | 180 | ret = rsnd_mod_init(priv, rsnd_mod_get(mix), &rsnd_mix_ops, |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 181 | clk, RSND_MOD_MIX, i); |
| 182 | if (ret) |
| 183 | return ret; |
| 184 | } |
| 185 | |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | void rsnd_mix_remove(struct platform_device *pdev, |
| 190 | struct rsnd_priv *priv) |
| 191 | { |
| 192 | struct rsnd_mix *mix; |
| 193 | int i; |
| 194 | |
| 195 | for_each_rsnd_mix(mix, priv, i) { |
Kuninori Morimoto | b76e218 | 2015-09-10 07:02:21 +0000 | [diff] [blame] | 196 | rsnd_mod_quit(rsnd_mod_get(mix)); |
Kuninori Morimoto | 70fb105 | 2015-07-15 07:17:36 +0000 | [diff] [blame] | 197 | } |
| 198 | } |