| 1 | /* |
| 2 | * tosa.c -- SoC audio for Tosa |
| 3 | * |
| 4 | * Copyright 2005 Wolfson Microelectronics PLC. |
| 5 | * Copyright 2005 Openedhand Ltd. |
| 6 | * |
| 7 | * Authors: Liam Girdwood <lrg@slimlogic.co.uk> |
| 8 | * Richard Purdie <richard@openedhand.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License as published by the |
| 12 | * Free Software Foundation; either version 2 of the License, or (at your |
| 13 | * option) any later version. |
| 14 | * |
| 15 | * GPIO's |
| 16 | * 1 - Jack Insertion |
| 17 | * 5 - Hookswitch (headset answer/hang up switch) |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/moduleparam.h> |
| 23 | #include <linux/device.h> |
| 24 | #include <linux/gpio.h> |
| 25 | |
| 26 | #include <sound/core.h> |
| 27 | #include <sound/pcm.h> |
| 28 | #include <sound/soc.h> |
| 29 | |
| 30 | #include <asm/mach-types.h> |
| 31 | #include <mach/tosa.h> |
| 32 | #include <mach/audio.h> |
| 33 | |
| 34 | #include "../codecs/wm9712.h" |
| 35 | #include "pxa2xx-ac97.h" |
| 36 | |
| 37 | #define TOSA_HP 0 |
| 38 | #define TOSA_MIC_INT 1 |
| 39 | #define TOSA_HEADSET 2 |
| 40 | #define TOSA_HP_OFF 3 |
| 41 | #define TOSA_SPK_ON 0 |
| 42 | #define TOSA_SPK_OFF 1 |
| 43 | |
| 44 | static int tosa_jack_func; |
| 45 | static int tosa_spk_func; |
| 46 | |
| 47 | static void tosa_ext_control(struct snd_soc_dapm_context *dapm) |
| 48 | { |
| 49 | |
| 50 | snd_soc_dapm_mutex_lock(dapm); |
| 51 | |
| 52 | /* set up jack connection */ |
| 53 | switch (tosa_jack_func) { |
| 54 | case TOSA_HP: |
| 55 | snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); |
| 56 | snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); |
| 57 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); |
| 58 | break; |
| 59 | case TOSA_MIC_INT: |
| 60 | snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)"); |
| 61 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
| 62 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); |
| 63 | break; |
| 64 | case TOSA_HEADSET: |
| 65 | snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); |
| 66 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
| 67 | snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack"); |
| 68 | break; |
| 69 | } |
| 70 | |
| 71 | if (tosa_spk_func == TOSA_SPK_ON) |
| 72 | snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker"); |
| 73 | else |
| 74 | snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker"); |
| 75 | |
| 76 | snd_soc_dapm_sync_unlocked(dapm); |
| 77 | |
| 78 | snd_soc_dapm_mutex_unlock(dapm); |
| 79 | } |
| 80 | |
| 81 | static int tosa_startup(struct snd_pcm_substream *substream) |
| 82 | { |
| 83 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 84 | |
| 85 | /* check the jack status at stream startup */ |
| 86 | tosa_ext_control(&rtd->card->dapm); |
| 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static struct snd_soc_ops tosa_ops = { |
| 92 | .startup = tosa_startup, |
| 93 | }; |
| 94 | |
| 95 | static int tosa_get_jack(struct snd_kcontrol *kcontrol, |
| 96 | struct snd_ctl_elem_value *ucontrol) |
| 97 | { |
| 98 | ucontrol->value.enumerated.item[0] = tosa_jack_func; |
| 99 | return 0; |
| 100 | } |
| 101 | |
| 102 | static int tosa_set_jack(struct snd_kcontrol *kcontrol, |
| 103 | struct snd_ctl_elem_value *ucontrol) |
| 104 | { |
| 105 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
| 106 | |
| 107 | if (tosa_jack_func == ucontrol->value.enumerated.item[0]) |
| 108 | return 0; |
| 109 | |
| 110 | tosa_jack_func = ucontrol->value.enumerated.item[0]; |
| 111 | tosa_ext_control(&card->dapm); |
| 112 | return 1; |
| 113 | } |
| 114 | |
| 115 | static int tosa_get_spk(struct snd_kcontrol *kcontrol, |
| 116 | struct snd_ctl_elem_value *ucontrol) |
| 117 | { |
| 118 | ucontrol->value.enumerated.item[0] = tosa_spk_func; |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | static int tosa_set_spk(struct snd_kcontrol *kcontrol, |
| 123 | struct snd_ctl_elem_value *ucontrol) |
| 124 | { |
| 125 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
| 126 | |
| 127 | if (tosa_spk_func == ucontrol->value.enumerated.item[0]) |
| 128 | return 0; |
| 129 | |
| 130 | tosa_spk_func = ucontrol->value.enumerated.item[0]; |
| 131 | tosa_ext_control(&card->dapm); |
| 132 | return 1; |
| 133 | } |
| 134 | |
| 135 | /* tosa dapm event handlers */ |
| 136 | static int tosa_hp_event(struct snd_soc_dapm_widget *w, |
| 137 | struct snd_kcontrol *k, int event) |
| 138 | { |
| 139 | gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0); |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | /* tosa machine dapm widgets */ |
| 144 | static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = { |
| 145 | SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event), |
| 146 | SND_SOC_DAPM_HP("Headset Jack", NULL), |
| 147 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), |
| 148 | SND_SOC_DAPM_SPK("Speaker", NULL), |
| 149 | }; |
| 150 | |
| 151 | /* tosa audio map */ |
| 152 | static const struct snd_soc_dapm_route audio_map[] = { |
| 153 | |
| 154 | /* headphone connected to HPOUTL, HPOUTR */ |
| 155 | {"Headphone Jack", NULL, "HPOUTL"}, |
| 156 | {"Headphone Jack", NULL, "HPOUTR"}, |
| 157 | |
| 158 | /* ext speaker connected to LOUT2, ROUT2 */ |
| 159 | {"Speaker", NULL, "LOUT2"}, |
| 160 | {"Speaker", NULL, "ROUT2"}, |
| 161 | |
| 162 | /* internal mic is connected to mic1, mic2 differential - with bias */ |
| 163 | {"MIC1", NULL, "Mic Bias"}, |
| 164 | {"MIC2", NULL, "Mic Bias"}, |
| 165 | {"Mic Bias", NULL, "Mic (Internal)"}, |
| 166 | |
| 167 | /* headset is connected to HPOUTR, and LINEINR with bias */ |
| 168 | {"Headset Jack", NULL, "HPOUTR"}, |
| 169 | {"LINEINR", NULL, "Mic Bias"}, |
| 170 | {"Mic Bias", NULL, "Headset Jack"}, |
| 171 | }; |
| 172 | |
| 173 | static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", |
| 174 | "Off"}; |
| 175 | static const char *spk_function[] = {"On", "Off"}; |
| 176 | static const struct soc_enum tosa_enum[] = { |
| 177 | SOC_ENUM_SINGLE_EXT(5, jack_function), |
| 178 | SOC_ENUM_SINGLE_EXT(2, spk_function), |
| 179 | }; |
| 180 | |
| 181 | static const struct snd_kcontrol_new tosa_controls[] = { |
| 182 | SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack, |
| 183 | tosa_set_jack), |
| 184 | SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk, |
| 185 | tosa_set_spk), |
| 186 | }; |
| 187 | |
| 188 | static struct snd_soc_dai_link tosa_dai[] = { |
| 189 | { |
| 190 | .name = "AC97", |
| 191 | .stream_name = "AC97 HiFi", |
| 192 | .cpu_dai_name = "pxa2xx-ac97", |
| 193 | .codec_dai_name = "wm9712-hifi", |
| 194 | .platform_name = "pxa-pcm-audio", |
| 195 | .codec_name = "wm9712-codec", |
| 196 | .ops = &tosa_ops, |
| 197 | }, |
| 198 | { |
| 199 | .name = "AC97 Aux", |
| 200 | .stream_name = "AC97 Aux", |
| 201 | .cpu_dai_name = "pxa2xx-ac97-aux", |
| 202 | .codec_dai_name = "wm9712-aux", |
| 203 | .platform_name = "pxa-pcm-audio", |
| 204 | .codec_name = "wm9712-codec", |
| 205 | .ops = &tosa_ops, |
| 206 | }, |
| 207 | }; |
| 208 | |
| 209 | static struct snd_soc_card tosa = { |
| 210 | .name = "Tosa", |
| 211 | .owner = THIS_MODULE, |
| 212 | .dai_link = tosa_dai, |
| 213 | .num_links = ARRAY_SIZE(tosa_dai), |
| 214 | |
| 215 | .controls = tosa_controls, |
| 216 | .num_controls = ARRAY_SIZE(tosa_controls), |
| 217 | .dapm_widgets = tosa_dapm_widgets, |
| 218 | .num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets), |
| 219 | .dapm_routes = audio_map, |
| 220 | .num_dapm_routes = ARRAY_SIZE(audio_map), |
| 221 | .fully_routed = true, |
| 222 | }; |
| 223 | |
| 224 | static int tosa_probe(struct platform_device *pdev) |
| 225 | { |
| 226 | struct snd_soc_card *card = ⤩ |
| 227 | int ret; |
| 228 | |
| 229 | ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW, |
| 230 | "Headphone Jack"); |
| 231 | if (ret) |
| 232 | return ret; |
| 233 | |
| 234 | card->dev = &pdev->dev; |
| 235 | |
| 236 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
| 237 | if (ret) { |
| 238 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
| 239 | ret); |
| 240 | gpio_free(TOSA_GPIO_L_MUTE); |
| 241 | } |
| 242 | return ret; |
| 243 | } |
| 244 | |
| 245 | static int tosa_remove(struct platform_device *pdev) |
| 246 | { |
| 247 | gpio_free(TOSA_GPIO_L_MUTE); |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | static struct platform_driver tosa_driver = { |
| 252 | .driver = { |
| 253 | .name = "tosa-audio", |
| 254 | .pm = &snd_soc_pm_ops, |
| 255 | }, |
| 256 | .probe = tosa_probe, |
| 257 | .remove = tosa_remove, |
| 258 | }; |
| 259 | |
| 260 | module_platform_driver(tosa_driver); |
| 261 | |
| 262 | /* Module information */ |
| 263 | MODULE_AUTHOR("Richard Purdie"); |
| 264 | MODULE_DESCRIPTION("ALSA SoC Tosa"); |
| 265 | MODULE_LICENSE("GPL"); |
| 266 | MODULE_ALIAS("platform:tosa-audio"); |