diff options
Diffstat (limited to 'sound/soc/pxa/magician.c')
| -rw-r--r-- | sound/soc/pxa/magician.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c new file mode 100644 index 000000000..b791a2ba5 --- /dev/null +++ b/sound/soc/pxa/magician.c @@ -0,0 +1,366 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * SoC audio for HTC Magician + * + * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com> + * + * based on spitz.c, + * Authors: Liam Girdwood <lrg@slimlogic.co.uk> + * Richard Purdie <richard@openedhand.com> + */ + +#include <linux/module.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/mach-types.h> +#include "../codecs/uda1380.h" +#include "pxa2xx-i2s.h" +#include "pxa-ssp.h" + +#define MAGICIAN_MIC 0 +#define MAGICIAN_MIC_EXT 1 + +static int magician_hp_switch; +static int magician_spk_switch = 1; +static int magician_in_sel = MAGICIAN_MIC; + +static struct gpio_desc *gpiod_spk_power, *gpiod_ep_power, *gpiod_mic_power; +static struct gpio_desc *gpiod_in_sel0, *gpiod_in_sel1; + +static void magician_ext_control(struct snd_soc_dapm_context *dapm) +{ + + snd_soc_dapm_mutex_lock(dapm); + + if (magician_spk_switch) + snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker"); + else + snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker"); + if (magician_hp_switch) + snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); + else + snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); + + switch (magician_in_sel) { + case MAGICIAN_MIC: + snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic"); + snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic"); + break; + case MAGICIAN_MIC_EXT: + snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic"); + snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic"); + break; + } + + snd_soc_dapm_sync_unlocked(dapm); + + snd_soc_dapm_mutex_unlock(dapm); +} + +static int magician_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + + /* check the jack status at stream startup */ + magician_ext_control(&rtd->card->dapm); + + return 0; +} + +/* + * Magician uses SSP port for playback. + */ +static int magician_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + unsigned int width; + int ret = 0; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BC_FC); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | + SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_BP_FP); + if (ret < 0) + return ret; + + width = snd_pcm_format_physical_width(params_format(params)); + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width); + if (ret < 0) + return ret; + + /* set audio clock as clock source */ + ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0, + SND_SOC_CLOCK_OUT); + if (ret < 0) + return ret; + + return 0; +} + +/* + * Magician uses I2S for capture. + */ +static int magician_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + int ret = 0; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, + SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_BC_FC); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, + SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_BP_FP); + if (ret < 0) + return ret; + + /* set the I2S system clock as output */ + ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, + SND_SOC_CLOCK_OUT); + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_soc_ops magician_capture_ops = { + .startup = magician_startup, + .hw_params = magician_capture_hw_params, +}; + +static const struct snd_soc_ops magician_playback_ops = { + .startup = magician_startup, + .hw_params = magician_playback_hw_params, +}; + +static int magician_get_hp(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = magician_hp_switch; + return 0; +} + +static int magician_set_hp(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + + if (magician_hp_switch == ucontrol->value.integer.value[0]) + return 0; + + magician_hp_switch = ucontrol->value.integer.value[0]; + magician_ext_control(&card->dapm); + return 1; +} + +static int magician_get_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = magician_spk_switch; + return 0; +} + +static int magician_set_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + + if (magician_spk_switch == ucontrol->value.integer.value[0]) + return 0; + + magician_spk_switch = ucontrol->value.integer.value[0]; + magician_ext_control(&card->dapm); + return 1; +} + +static int magician_get_input(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.enumerated.item[0] = magician_in_sel; + return 0; +} + +static int magician_set_input(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + if (magician_in_sel == ucontrol->value.enumerated.item[0]) + return 0; + + magician_in_sel = ucontrol->value.enumerated.item[0]; + + switch (magician_in_sel) { + case MAGICIAN_MIC: + gpiod_set_value(gpiod_in_sel1, 1); + break; + case MAGICIAN_MIC_EXT: + gpiod_set_value(gpiod_in_sel1, 0); + } + + return 1; +} + +static int magician_spk_power(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + gpiod_set_value(gpiod_spk_power, SND_SOC_DAPM_EVENT_ON(event)); + return 0; +} + +static int magician_hp_power(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + gpiod_set_value(gpiod_ep_power, SND_SOC_DAPM_EVENT_ON(event)); + return 0; +} + +static int magician_mic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + gpiod_set_value(gpiod_mic_power, SND_SOC_DAPM_EVENT_ON(event)); + return 0; +} + +/* magician machine dapm widgets */ +static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power), + SND_SOC_DAPM_SPK("Speaker", magician_spk_power), + SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias), + SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias), +}; + +/* magician machine audio_map */ +static const struct snd_soc_dapm_route audio_map[] = { + + /* Headphone connected to VOUTL, VOUTR */ + {"Headphone Jack", NULL, "VOUTL"}, + {"Headphone Jack", NULL, "VOUTR"}, + + /* Speaker connected to VOUTL, VOUTR */ + {"Speaker", NULL, "VOUTL"}, + {"Speaker", NULL, "VOUTR"}, + + /* Mics are connected to VINM */ + {"VINM", NULL, "Headset Mic"}, + {"VINM", NULL, "Call Mic"}, +}; + +static const char * const input_select[] = {"Call Mic", "Headset Mic"}; +static const struct soc_enum magician_in_sel_enum = + SOC_ENUM_SINGLE_EXT(2, input_select); + +static const struct snd_kcontrol_new uda1380_magician_controls[] = { + SOC_SINGLE_BOOL_EXT("Headphone Switch", + (unsigned long)&magician_hp_switch, + magician_get_hp, magician_set_hp), + SOC_SINGLE_BOOL_EXT("Speaker Switch", + (unsigned long)&magician_spk_switch, + magician_get_spk, magician_set_spk), + SOC_ENUM_EXT("Input Select", magician_in_sel_enum, + magician_get_input, magician_set_input), +}; + +/* magician digital audio interface glue - connects codec <--> CPU */ +SND_SOC_DAILINK_DEFS(playback, + DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")), + DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018", + "uda1380-hifi-playback")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); + +SND_SOC_DAILINK_DEFS(capture, + DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")), + DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018", + "uda1380-hifi-capture")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); + +static struct snd_soc_dai_link magician_dai[] = { +{ + .name = "uda1380", + .stream_name = "UDA1380 Playback", + .ops = &magician_playback_ops, + SND_SOC_DAILINK_REG(playback), +}, +{ + .name = "uda1380", + .stream_name = "UDA1380 Capture", + .ops = &magician_capture_ops, + SND_SOC_DAILINK_REG(capture), +} +}; + +/* magician audio machine driver */ +static struct snd_soc_card snd_soc_card_magician = { + .name = "Magician", + .owner = THIS_MODULE, + .dai_link = magician_dai, + .num_links = ARRAY_SIZE(magician_dai), + + .controls = uda1380_magician_controls, + .num_controls = ARRAY_SIZE(uda1380_magician_controls), + .dapm_widgets = uda1380_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets), + .dapm_routes = audio_map, + .num_dapm_routes = ARRAY_SIZE(audio_map), + .fully_routed = true, +}; + +static int magician_audio_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + + gpiod_spk_power = devm_gpiod_get(dev, "SPK_POWER", GPIOD_OUT_LOW); + if (IS_ERR(gpiod_spk_power)) + return PTR_ERR(gpiod_spk_power); + gpiod_ep_power = devm_gpiod_get(dev, "EP_POWER", GPIOD_OUT_LOW); + if (IS_ERR(gpiod_ep_power)) + return PTR_ERR(gpiod_ep_power); + gpiod_mic_power = devm_gpiod_get(dev, "MIC_POWER", GPIOD_OUT_LOW); + if (IS_ERR(gpiod_mic_power)) + return PTR_ERR(gpiod_mic_power); + gpiod_in_sel0 = devm_gpiod_get(dev, "IN_SEL0", GPIOD_OUT_HIGH); + if (IS_ERR(gpiod_in_sel0)) + return PTR_ERR(gpiod_in_sel0); + gpiod_in_sel1 = devm_gpiod_get(dev, "IN_SEL1", GPIOD_OUT_LOW); + if (IS_ERR(gpiod_in_sel1)) + return PTR_ERR(gpiod_in_sel1); + + snd_soc_card_magician.dev = &pdev->dev; + return devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_magician); +} + +static struct platform_driver magician_audio_driver = { + .driver.name = "magician-audio", + .driver.pm = &snd_soc_pm_ops, + .probe = magician_audio_probe, +}; +module_platform_driver(magician_audio_driver); + +MODULE_AUTHOR("Philipp Zabel"); +MODULE_DESCRIPTION("ALSA SoC Magician"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:magician-audio"); |