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366 lines
9.9 KiB
366 lines
9.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* SoC audio for HTC Magician |
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* |
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* Copyright (c) 2006 Philipp Zabel <[email protected]> |
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* |
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* based on spitz.c, |
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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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#include <linux/module.h> |
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#include <linux/timer.h> |
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#include <linux/interrupt.h> |
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#include <linux/platform_device.h> |
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#include <linux/delay.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/i2c.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <asm/mach-types.h> |
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#include "../codecs/uda1380.h" |
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#include "pxa2xx-i2s.h" |
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#include "pxa-ssp.h" |
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#define MAGICIAN_MIC 0 |
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#define MAGICIAN_MIC_EXT 1 |
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static int magician_hp_switch; |
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static int magician_spk_switch = 1; |
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static int magician_in_sel = MAGICIAN_MIC; |
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static struct gpio_desc *gpiod_spk_power, *gpiod_ep_power, *gpiod_mic_power; |
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static struct gpio_desc *gpiod_in_sel0, *gpiod_in_sel1; |
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static void magician_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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if (magician_spk_switch) |
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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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if (magician_hp_switch) |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); |
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else |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
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switch (magician_in_sel) { |
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case MAGICIAN_MIC: |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic"); |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic"); |
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break; |
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case MAGICIAN_MIC_EXT: |
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snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic"); |
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snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic"); |
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break; |
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} |
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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 magician_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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magician_ext_control(&rtd->card->dapm); |
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return 0; |
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} |
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/* |
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* Magician uses SSP port for playback. |
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*/ |
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static int magician_playback_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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unsigned int width; |
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int ret = 0; |
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/* set codec DAI configuration */ |
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB | |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BC_FC); |
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if (ret < 0) |
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return ret; |
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/* set cpu DAI configuration */ |
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | |
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SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_BP_FP); |
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if (ret < 0) |
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return ret; |
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width = snd_pcm_format_physical_width(params_format(params)); |
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ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width); |
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if (ret < 0) |
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return ret; |
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/* set audio clock as clock source */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0, |
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SND_SOC_CLOCK_OUT); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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/* |
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* Magician uses I2S for capture. |
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*/ |
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static int magician_capture_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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int ret = 0; |
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/* set codec DAI configuration */ |
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ret = snd_soc_dai_set_fmt(codec_dai, |
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SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_BC_FC); |
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if (ret < 0) |
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return ret; |
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/* set cpu DAI configuration */ |
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ret = snd_soc_dai_set_fmt(cpu_dai, |
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SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_BP_FP); |
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if (ret < 0) |
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return ret; |
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/* set the I2S system clock as output */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
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SND_SOC_CLOCK_OUT); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static const struct snd_soc_ops magician_capture_ops = { |
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.startup = magician_startup, |
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.hw_params = magician_capture_hw_params, |
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}; |
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static const struct snd_soc_ops magician_playback_ops = { |
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.startup = magician_startup, |
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.hw_params = magician_playback_hw_params, |
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}; |
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static int magician_get_hp(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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ucontrol->value.integer.value[0] = magician_hp_switch; |
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return 0; |
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} |
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static int magician_set_hp(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 (magician_hp_switch == ucontrol->value.integer.value[0]) |
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return 0; |
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magician_hp_switch = ucontrol->value.integer.value[0]; |
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magician_ext_control(&card->dapm); |
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return 1; |
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} |
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static int magician_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.integer.value[0] = magician_spk_switch; |
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return 0; |
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} |
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static int magician_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 (magician_spk_switch == ucontrol->value.integer.value[0]) |
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return 0; |
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magician_spk_switch = ucontrol->value.integer.value[0]; |
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magician_ext_control(&card->dapm); |
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return 1; |
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} |
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static int magician_get_input(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] = magician_in_sel; |
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return 0; |
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} |
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static int magician_set_input(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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if (magician_in_sel == ucontrol->value.enumerated.item[0]) |
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return 0; |
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magician_in_sel = ucontrol->value.enumerated.item[0]; |
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switch (magician_in_sel) { |
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case MAGICIAN_MIC: |
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gpiod_set_value(gpiod_in_sel1, 1); |
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break; |
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case MAGICIAN_MIC_EXT: |
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gpiod_set_value(gpiod_in_sel1, 0); |
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} |
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return 1; |
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} |
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static int magician_spk_power(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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gpiod_set_value(gpiod_spk_power, SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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static int magician_hp_power(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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gpiod_set_value(gpiod_ep_power, SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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static int magician_mic_bias(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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gpiod_set_value(gpiod_mic_power, SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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/* magician machine dapm widgets */ |
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static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power), |
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SND_SOC_DAPM_SPK("Speaker", magician_spk_power), |
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SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias), |
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SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias), |
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}; |
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/* magician machine audio_map */ |
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static const struct snd_soc_dapm_route audio_map[] = { |
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/* Headphone connected to VOUTL, VOUTR */ |
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{"Headphone Jack", NULL, "VOUTL"}, |
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{"Headphone Jack", NULL, "VOUTR"}, |
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/* Speaker connected to VOUTL, VOUTR */ |
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{"Speaker", NULL, "VOUTL"}, |
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{"Speaker", NULL, "VOUTR"}, |
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/* Mics are connected to VINM */ |
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{"VINM", NULL, "Headset Mic"}, |
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{"VINM", NULL, "Call Mic"}, |
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}; |
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static const char * const input_select[] = {"Call Mic", "Headset Mic"}; |
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static const struct soc_enum magician_in_sel_enum = |
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SOC_ENUM_SINGLE_EXT(2, input_select); |
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static const struct snd_kcontrol_new uda1380_magician_controls[] = { |
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SOC_SINGLE_BOOL_EXT("Headphone Switch", |
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(unsigned long)&magician_hp_switch, |
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magician_get_hp, magician_set_hp), |
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SOC_SINGLE_BOOL_EXT("Speaker Switch", |
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(unsigned long)&magician_spk_switch, |
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magician_get_spk, magician_set_spk), |
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SOC_ENUM_EXT("Input Select", magician_in_sel_enum, |
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magician_get_input, magician_set_input), |
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}; |
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/* magician digital audio interface glue - connects codec <--> CPU */ |
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SND_SOC_DAILINK_DEFS(playback, |
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DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018", |
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"uda1380-hifi-playback")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); |
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SND_SOC_DAILINK_DEFS(capture, |
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DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018", |
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"uda1380-hifi-capture")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); |
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static struct snd_soc_dai_link magician_dai[] = { |
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{ |
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.name = "uda1380", |
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.stream_name = "UDA1380 Playback", |
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.ops = &magician_playback_ops, |
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SND_SOC_DAILINK_REG(playback), |
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}, |
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{ |
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.name = "uda1380", |
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.stream_name = "UDA1380 Capture", |
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.ops = &magician_capture_ops, |
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SND_SOC_DAILINK_REG(capture), |
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} |
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}; |
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/* magician audio machine driver */ |
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static struct snd_soc_card snd_soc_card_magician = { |
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.name = "Magician", |
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.owner = THIS_MODULE, |
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.dai_link = magician_dai, |
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.num_links = ARRAY_SIZE(magician_dai), |
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.controls = uda1380_magician_controls, |
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.num_controls = ARRAY_SIZE(uda1380_magician_controls), |
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.dapm_widgets = uda1380_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(uda1380_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 magician_audio_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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gpiod_spk_power = devm_gpiod_get(dev, "SPK_POWER", GPIOD_OUT_LOW); |
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if (IS_ERR(gpiod_spk_power)) |
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return PTR_ERR(gpiod_spk_power); |
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gpiod_ep_power = devm_gpiod_get(dev, "EP_POWER", GPIOD_OUT_LOW); |
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if (IS_ERR(gpiod_ep_power)) |
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return PTR_ERR(gpiod_ep_power); |
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gpiod_mic_power = devm_gpiod_get(dev, "MIC_POWER", GPIOD_OUT_LOW); |
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if (IS_ERR(gpiod_mic_power)) |
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return PTR_ERR(gpiod_mic_power); |
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gpiod_in_sel0 = devm_gpiod_get(dev, "IN_SEL0", GPIOD_OUT_HIGH); |
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if (IS_ERR(gpiod_in_sel0)) |
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return PTR_ERR(gpiod_in_sel0); |
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gpiod_in_sel1 = devm_gpiod_get(dev, "IN_SEL1", GPIOD_OUT_LOW); |
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if (IS_ERR(gpiod_in_sel1)) |
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return PTR_ERR(gpiod_in_sel1); |
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snd_soc_card_magician.dev = &pdev->dev; |
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return devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_magician); |
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} |
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static struct platform_driver magician_audio_driver = { |
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.driver.name = "magician-audio", |
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.driver.pm = &snd_soc_pm_ops, |
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.probe = magician_audio_probe, |
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}; |
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module_platform_driver(magician_audio_driver); |
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MODULE_AUTHOR("Philipp Zabel"); |
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MODULE_DESCRIPTION("ALSA SoC Magician"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:magician-audio");
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