367 lines
9.9 KiB
C
367 lines
9.9 KiB
C
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// 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 <philipp.zabel@gmail.com>
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*
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* based on spitz.c,
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* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
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* Richard Purdie <richard@openedhand.com>
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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);
|
||
|
|
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");
|