diff options
| -rw-r--r-- | sound/soc/pxa/tosa.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c new file mode 100644 index 0000000..8c3c6b0 --- /dev/null +++ b/sound/soc/pxa/tosa.c @@ -0,0 +1,287 @@ +/* + * tosa.c -- SoC audio for Tosa + * + * Copyright 2005 Wolfson Microelectronics PLC. + * Copyright 2005 Openedhand Ltd. + * + * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com> + * Richard Purdie <richard@openedhand.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Revision history + * 30th Nov 2005 Initial version. + * + * GPIO's + * 1 - Jack Insertion + * 5 - Hookswitch (headset answer/hang up switch) + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> + +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include <asm/mach-types.h> +#include <asm/hardware/tmio.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/hardware.h> +#include <asm/arch/audio.h> +#include <asm/arch/tosa.h> + +#include "../codecs/wm9712.h" +#include "pxa2xx-pcm.h" + +static struct snd_soc_machine tosa; + +#define TOSA_HP 0 +#define TOSA_MIC_INT 1 +#define TOSA_HEADSET 2 +#define TOSA_HP_OFF 3 +#define TOSA_SPK_ON 0 +#define TOSA_SPK_OFF 1 + +static int tosa_jack_func; +static int tosa_spk_func; + +static void tosa_ext_control(struct snd_soc_codec *codec) +{ + int spk = 0, mic_int = 0, hp = 0, hs = 0; + + /* set up jack connection */ + switch (tosa_jack_func) { + case TOSA_HP: + hp = 1; + break; + case TOSA_MIC_INT: + mic_int = 1; + break; + case TOSA_HEADSET: + hs = 1; + break; + } + + if (tosa_spk_func == TOSA_SPK_ON) + spk = 1; + + snd_soc_dapm_set_endpoint(codec, "Speaker", spk); + snd_soc_dapm_set_endpoint(codec, "Mic (Internal)", mic_int); + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp); + snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs); + snd_soc_dapm_sync_endpoints(codec); +} + +static int tosa_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->socdev->codec; + + /* check the jack status at stream startup */ + tosa_ext_control(codec); + return 0; +} + +static struct snd_soc_ops tosa_ops = { + .startup = tosa_startup, +}; + +static int tosa_get_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = tosa_jack_func; + return 0; +} + +static int tosa_set_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (tosa_jack_func == ucontrol->value.integer.value[0]) + return 0; + + tosa_jack_func = ucontrol->value.integer.value[0]; + tosa_ext_control(codec); + return 1; +} + +static int tosa_get_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = tosa_spk_func; + return 0; +} + +static int tosa_set_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (tosa_spk_func == ucontrol->value.integer.value[0]) + return 0; + + tosa_spk_func = ucontrol->value.integer.value[0]; + tosa_ext_control(codec); + return 1; +} + +/* tosa dapm event handlers */ +static int tosa_hp_event(struct snd_soc_dapm_widget *w, int event) +{ + if (SND_SOC_DAPM_EVENT_ON(event)) + set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE); + else + reset_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE); + return 0; +} + +/* tosa machine dapm widgets */ +static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = { +SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event), +SND_SOC_DAPM_HP("Headset Jack", NULL), +SND_SOC_DAPM_MIC("Mic (Internal)", NULL), +SND_SOC_DAPM_SPK("Speaker", NULL), +}; + +/* tosa audio map */ +static const char *audio_map[][3] = { + + /* headphone connected to HPOUTL, HPOUTR */ + {"Headphone Jack", NULL, "HPOUTL"}, + {"Headphone Jack", NULL, "HPOUTR"}, + + /* ext speaker connected to LOUT2, ROUT2 */ + {"Speaker", NULL, "LOUT2"}, + {"Speaker", NULL, "ROUT2"}, + + /* internal mic is connected to mic1, mic2 differential - with bias */ + {"MIC1", NULL, "Mic Bias"}, + {"MIC2", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Mic (Internal)"}, + + /* headset is connected to HPOUTR, and LINEINR with bias */ + {"Headset Jack", NULL, "HPOUTR"}, + {"LINEINR", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Headset Jack"}, + + {NULL, NULL, NULL}, +}; + +static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", + "Off"}; +static const char *spk_function[] = {"On", "Off"}; +static const struct soc_enum tosa_enum[] = { + SOC_ENUM_SINGLE_EXT(5, jack_function), + SOC_ENUM_SINGLE_EXT(2, spk_function), +}; + +static const struct snd_kcontrol_new tosa_controls[] = { + SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack, + tosa_set_jack), + SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk, + tosa_set_spk), +}; + +static int tosa_ac97_init(struct snd_soc_codec *codec) +{ + int i, err; + + snd_soc_dapm_set_endpoint(codec, "OUT3", 0); + snd_soc_dapm_set_endpoint(codec, "MONOOUT", 0); + + /* add tosa specific controls */ + for (i = 0; i < ARRAY_SIZE(tosa_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&tosa_controls[i],codec, NULL)); + if (err < 0) + return err; + } + + /* add tosa specific widgets */ + for (i = 0; i < ARRAY_SIZE(tosa_dapm_widgets); i++) { + snd_soc_dapm_new_control(codec, &tosa_dapm_widgets[i]); + } + + /* set up tosa specific audio path audio_map */ + for (i = 0; audio_map[i][0] != NULL; i++) { + snd_soc_dapm_connect_input(codec, audio_map[i][0], + audio_map[i][1], audio_map[i][2]); + } + + snd_soc_dapm_sync_endpoints(codec); + return 0; +} + +static struct snd_soc_dai_link tosa_dai[] = { +{ + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], + .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], + .init = tosa_ac97_init, +}, +{ + .name = "AC97 Aux", + .stream_name = "AC97 Aux", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], + .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], +}, +}; + +static struct snd_soc_machine tosa = { + .name = "Tosa", + .dai_link = tosa_dai, + .num_links = ARRAY_SIZE(tosa_dai), + .ops = &tosa_ops, +}; + +static struct snd_soc_device tosa_snd_devdata = { + .machine = &tosa, + .platform = &pxa2xx_soc_platform, + .codec_dev = &soc_codec_dev_wm9712, +}; + +static struct platform_device *tosa_snd_device; + +static int __init tosa_init(void) +{ + int ret; + + if (!machine_is_tosa()) + return -ENODEV; + + tosa_snd_device = platform_device_alloc("soc-audio", -1); + if (!tosa_snd_device) + return -ENOMEM; + + platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata); + tosa_snd_devdata.dev = &tosa_snd_device->dev; + ret = platform_device_add(tosa_snd_device); + + if (ret) + platform_device_put(tosa_snd_device); + + return ret; +} + +static void __exit tosa_exit(void) +{ + platform_device_unregister(tosa_snd_device); +} + +module_init(tosa_init); +module_exit(tosa_exit); + +/* Module information */ +MODULE_AUTHOR("Richard Purdie"); +MODULE_DESCRIPTION("ALSA SoC Tosa"); +MODULE_LICENSE("GPL"); |