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262 lines
6.5 KiB
262 lines
6.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* tosa.c -- SoC audio for Tosa |
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* |
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* Copyright 2005 Wolfson Microelectronics PLC. |
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* Copyright 2005 Openedhand Ltd. |
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* |
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* Authors: Liam Girdwood <[email protected]> |
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* Richard Purdie <[email protected]> |
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* |
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* GPIO's |
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* 1 - Jack Insertion |
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* 5 - Hookswitch (headset answer/hang up switch) |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/device.h> |
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#include <linux/gpio.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/soc.h> |
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#include <asm/mach-types.h> |
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#include <mach/tosa.h> |
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#include <mach/audio.h> |
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#define TOSA_HP 0 |
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#define TOSA_MIC_INT 1 |
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#define TOSA_HEADSET 2 |
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#define TOSA_HP_OFF 3 |
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#define TOSA_SPK_ON 0 |
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#define TOSA_SPK_OFF 1 |
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static int tosa_jack_func; |
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static int tosa_spk_func; |
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static void tosa_ext_control(struct snd_soc_dapm_context *dapm) |
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{ |
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snd_soc_dapm_mutex_lock(dapm); |
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/* set up jack connection */ |
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switch (tosa_jack_func) { |
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case TOSA_HP: |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); |
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break; |
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case TOSA_MIC_INT: |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)"); |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); |
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break; |
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case TOSA_HEADSET: |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack"); |
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break; |
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} |
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if (tosa_spk_func == TOSA_SPK_ON) |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker"); |
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else |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker"); |
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snd_soc_dapm_sync_unlocked(dapm); |
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snd_soc_dapm_mutex_unlock(dapm); |
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} |
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static int tosa_startup(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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/* check the jack status at stream startup */ |
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tosa_ext_control(&rtd->card->dapm); |
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return 0; |
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} |
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static const struct snd_soc_ops tosa_ops = { |
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.startup = tosa_startup, |
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}; |
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static int tosa_get_jack(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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ucontrol->value.enumerated.item[0] = tosa_jack_func; |
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return 0; |
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} |
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static int tosa_set_jack(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
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if (tosa_jack_func == ucontrol->value.enumerated.item[0]) |
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return 0; |
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tosa_jack_func = ucontrol->value.enumerated.item[0]; |
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tosa_ext_control(&card->dapm); |
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return 1; |
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} |
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static int tosa_get_spk(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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ucontrol->value.enumerated.item[0] = tosa_spk_func; |
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return 0; |
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} |
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static int tosa_set_spk(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
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if (tosa_spk_func == ucontrol->value.enumerated.item[0]) |
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return 0; |
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tosa_spk_func = ucontrol->value.enumerated.item[0]; |
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tosa_ext_control(&card->dapm); |
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return 1; |
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} |
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/* tosa dapm event handlers */ |
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static int tosa_hp_event(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 : 0); |
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return 0; |
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} |
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/* tosa machine dapm widgets */ |
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static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event), |
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SND_SOC_DAPM_HP("Headset Jack", NULL), |
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SND_SOC_DAPM_MIC("Mic (Internal)", NULL), |
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SND_SOC_DAPM_SPK("Speaker", NULL), |
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}; |
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/* tosa audio map */ |
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static const struct snd_soc_dapm_route audio_map[] = { |
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/* headphone connected to HPOUTL, HPOUTR */ |
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{"Headphone Jack", NULL, "HPOUTL"}, |
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{"Headphone Jack", NULL, "HPOUTR"}, |
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/* ext speaker connected to LOUT2, ROUT2 */ |
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{"Speaker", NULL, "LOUT2"}, |
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{"Speaker", NULL, "ROUT2"}, |
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/* internal mic is connected to mic1, mic2 differential - with bias */ |
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{"MIC1", NULL, "Mic Bias"}, |
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{"MIC2", NULL, "Mic Bias"}, |
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{"Mic Bias", NULL, "Mic (Internal)"}, |
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/* headset is connected to HPOUTR, and LINEINR with bias */ |
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{"Headset Jack", NULL, "HPOUTR"}, |
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{"LINEINR", NULL, "Mic Bias"}, |
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{"Mic Bias", NULL, "Headset Jack"}, |
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}; |
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static const char * const jack_function[] = {"Headphone", "Mic", "Line", |
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"Headset", "Off"}; |
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static const char * const spk_function[] = {"On", "Off"}; |
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static const struct soc_enum tosa_enum[] = { |
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SOC_ENUM_SINGLE_EXT(5, jack_function), |
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SOC_ENUM_SINGLE_EXT(2, spk_function), |
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}; |
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static const struct snd_kcontrol_new tosa_controls[] = { |
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SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack, |
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tosa_set_jack), |
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SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk, |
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tosa_set_spk), |
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}; |
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SND_SOC_DAILINK_DEFS(ac97, |
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DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); |
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SND_SOC_DAILINK_DEFS(ac97_aux, |
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DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); |
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static struct snd_soc_dai_link tosa_dai[] = { |
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{ |
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.name = "AC97", |
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.stream_name = "AC97 HiFi", |
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.ops = &tosa_ops, |
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SND_SOC_DAILINK_REG(ac97), |
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}, |
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{ |
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.name = "AC97 Aux", |
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.stream_name = "AC97 Aux", |
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.ops = &tosa_ops, |
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SND_SOC_DAILINK_REG(ac97_aux), |
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}, |
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}; |
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static struct snd_soc_card tosa = { |
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.name = "Tosa", |
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.owner = THIS_MODULE, |
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.dai_link = tosa_dai, |
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.num_links = ARRAY_SIZE(tosa_dai), |
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.controls = tosa_controls, |
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.num_controls = ARRAY_SIZE(tosa_controls), |
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.dapm_widgets = tosa_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets), |
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.dapm_routes = audio_map, |
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.num_dapm_routes = ARRAY_SIZE(audio_map), |
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.fully_routed = true, |
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}; |
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static int tosa_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = ⤩ |
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int ret; |
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ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW, |
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"Headphone Jack"); |
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if (ret) |
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return ret; |
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card->dev = &pdev->dev; |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) { |
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
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ret); |
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gpio_free(TOSA_GPIO_L_MUTE); |
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} |
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return ret; |
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} |
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static int tosa_remove(struct platform_device *pdev) |
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{ |
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gpio_free(TOSA_GPIO_L_MUTE); |
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return 0; |
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} |
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static struct platform_driver tosa_driver = { |
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.driver = { |
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.name = "tosa-audio", |
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.pm = &snd_soc_pm_ops, |
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}, |
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.probe = tosa_probe, |
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.remove = tosa_remove, |
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}; |
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module_platform_driver(tosa_driver); |
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/* Module information */ |
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MODULE_AUTHOR("Richard Purdie"); |
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MODULE_DESCRIPTION("ALSA SoC Tosa"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:tosa-audio");
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