372 lines
9.8 KiB
C
372 lines
9.8 KiB
C
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/*
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* spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
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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 <lrg@slimlogic.co.uk>
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* Richard Purdie <richard@openedhand.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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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/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/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 <sound/soc-dapm.h>
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#include <asm/mach-types.h>
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#include <mach/spitz.h>
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#include "../codecs/wm8750.h"
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#include "pxa2xx-pcm.h"
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#include "pxa2xx-i2s.h"
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#define SPITZ_HP 0
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#define SPITZ_MIC 1
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#define SPITZ_LINE 2
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#define SPITZ_HEADSET 3
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#define SPITZ_HP_OFF 4
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#define SPITZ_SPK_ON 0
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#define SPITZ_SPK_OFF 1
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/* audio clock in Hz - rounded from 12.235MHz */
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#define SPITZ_AUDIO_CLOCK 12288000
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static int spitz_jack_func;
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static int spitz_spk_func;
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static void spitz_ext_control(struct snd_soc_codec *codec)
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{
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if (spitz_spk_func == SPITZ_SPK_ON)
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snd_soc_dapm_enable_pin(codec, "Ext Spk");
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else
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snd_soc_dapm_disable_pin(codec, "Ext Spk");
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/* set up jack connection */
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switch (spitz_jack_func) {
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case SPITZ_HP:
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/* enable and unmute hp jack, disable mic bias */
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snd_soc_dapm_disable_pin(codec, "Headset Jack");
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snd_soc_dapm_disable_pin(codec, "Mic Jack");
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snd_soc_dapm_disable_pin(codec, "Line Jack");
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snd_soc_dapm_enable_pin(codec, "Headphone Jack");
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gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
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gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
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break;
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case SPITZ_MIC:
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/* enable mic jack and bias, mute hp */
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snd_soc_dapm_disable_pin(codec, "Headphone Jack");
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snd_soc_dapm_disable_pin(codec, "Headset Jack");
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snd_soc_dapm_disable_pin(codec, "Line Jack");
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snd_soc_dapm_enable_pin(codec, "Mic Jack");
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gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
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gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
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break;
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case SPITZ_LINE:
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/* enable line jack, disable mic bias and mute hp */
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snd_soc_dapm_disable_pin(codec, "Headphone Jack");
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snd_soc_dapm_disable_pin(codec, "Headset Jack");
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snd_soc_dapm_disable_pin(codec, "Mic Jack");
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snd_soc_dapm_enable_pin(codec, "Line Jack");
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gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
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gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
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break;
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case SPITZ_HEADSET:
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/* enable and unmute headset jack enable mic bias, mute L hp */
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snd_soc_dapm_disable_pin(codec, "Headphone Jack");
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snd_soc_dapm_enable_pin(codec, "Mic Jack");
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snd_soc_dapm_disable_pin(codec, "Line Jack");
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snd_soc_dapm_enable_pin(codec, "Headset Jack");
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gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
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gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
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break;
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case SPITZ_HP_OFF:
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/* jack removed, everything off */
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snd_soc_dapm_disable_pin(codec, "Headphone Jack");
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snd_soc_dapm_disable_pin(codec, "Headset Jack");
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snd_soc_dapm_disable_pin(codec, "Mic Jack");
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snd_soc_dapm_disable_pin(codec, "Line Jack");
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gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
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gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
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break;
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}
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snd_soc_dapm_sync(codec);
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}
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static int spitz_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_codec *codec = rtd->socdev->card->codec;
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/* check the jack status at stream startup */
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spitz_ext_control(codec);
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return 0;
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}
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static int spitz_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 = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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unsigned int clk = 0;
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int ret = 0;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 48000:
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case 96000:
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clk = 12288000;
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break;
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case 11025:
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case 22050:
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case 44100:
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clk = 11289600;
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break;
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}
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/* set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
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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_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
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if (ret < 0)
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return ret;
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/* set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
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SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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/* set the I2S system clock as input (unused) */
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ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
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SND_SOC_CLOCK_IN);
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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 struct snd_soc_ops spitz_ops = {
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.startup = spitz_startup,
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.hw_params = spitz_hw_params,
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};
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static int spitz_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.integer.value[0] = spitz_jack_func;
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return 0;
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}
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static int spitz_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_codec *codec = snd_kcontrol_chip(kcontrol);
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if (spitz_jack_func == ucontrol->value.integer.value[0])
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return 0;
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spitz_jack_func = ucontrol->value.integer.value[0];
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spitz_ext_control(codec);
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return 1;
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}
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static int spitz_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] = spitz_spk_func;
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return 0;
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}
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static int spitz_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_codec *codec = snd_kcontrol_chip(kcontrol);
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if (spitz_spk_func == ucontrol->value.integer.value[0])
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return 0;
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spitz_spk_func = ucontrol->value.integer.value[0];
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spitz_ext_control(codec);
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return 1;
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}
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static int spitz_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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if (machine_is_borzoi() || machine_is_spitz())
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gpio_set_value(SPITZ_GPIO_MIC_BIAS,
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SND_SOC_DAPM_EVENT_ON(event));
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if (machine_is_akita())
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gpio_set_value(AKITA_GPIO_MIC_BIAS,
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SND_SOC_DAPM_EVENT_ON(event));
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return 0;
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}
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/* spitz machine dapm widgets */
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static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_LINE("Line Jack", NULL),
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/* headset is a mic and mono headphone */
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SND_SOC_DAPM_HP("Headset Jack", NULL),
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};
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/* Spitz machine audio_map */
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static const struct snd_soc_dapm_route audio_map[] = {
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/* headphone connected to LOUT1, ROUT1 */
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{"Headphone Jack", NULL, "LOUT1"},
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{"Headphone Jack", NULL, "ROUT1"},
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/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
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{"Headset Jack", NULL, "ROUT1"},
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/* ext speaker connected to LOUT2, ROUT2 */
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{"Ext Spk", NULL , "ROUT2"},
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{"Ext Spk", NULL , "LOUT2"},
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/* mic is connected to input 1 - with bias */
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{"LINPUT1", NULL, "Mic Bias"},
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{"Mic Bias", NULL, "Mic Jack"},
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/* line is connected to input 1 - no bias */
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{"LINPUT1", NULL, "Line Jack"},
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};
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static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
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"Off"};
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static const char *spk_function[] = {"On", "Off"};
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static const struct soc_enum spitz_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 wm8750_spitz_controls[] = {
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SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
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spitz_set_jack),
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SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
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spitz_set_spk),
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};
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/*
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* Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
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*/
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static int spitz_wm8750_init(struct snd_soc_codec *codec)
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{
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int err;
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/* NC codec pins */
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snd_soc_dapm_nc_pin(codec, "RINPUT1");
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snd_soc_dapm_nc_pin(codec, "LINPUT2");
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snd_soc_dapm_nc_pin(codec, "RINPUT2");
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snd_soc_dapm_nc_pin(codec, "LINPUT3");
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snd_soc_dapm_nc_pin(codec, "RINPUT3");
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snd_soc_dapm_nc_pin(codec, "OUT3");
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snd_soc_dapm_nc_pin(codec, "MONO1");
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/* Add spitz specific controls */
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err = snd_soc_add_controls(codec, wm8750_spitz_controls,
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ARRAY_SIZE(wm8750_spitz_controls));
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if (err < 0)
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return err;
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/* Add spitz specific widgets */
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snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
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ARRAY_SIZE(wm8750_dapm_widgets));
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/* Set up spitz specific audio paths */
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snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
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snd_soc_dapm_sync(codec);
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return 0;
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}
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/* spitz digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link spitz_dai = {
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.name = "wm8750",
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.stream_name = "WM8750",
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.cpu_dai = &pxa_i2s_dai,
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.codec_dai = &wm8750_dai,
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.init = spitz_wm8750_init,
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.ops = &spitz_ops,
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};
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/* spitz audio machine driver */
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static struct snd_soc_card snd_soc_spitz = {
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.name = "Spitz",
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.platform = &pxa2xx_soc_platform,
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.dai_link = &spitz_dai,
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.num_links = 1,
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};
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/* spitz audio private data */
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static struct wm8750_setup_data spitz_wm8750_setup = {
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.i2c_bus = 0,
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.i2c_address = 0x1b,
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};
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/* spitz audio subsystem */
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static struct snd_soc_device spitz_snd_devdata = {
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.card = &snd_soc_spitz,
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.codec_dev = &soc_codec_dev_wm8750,
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.codec_data = &spitz_wm8750_setup,
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};
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static struct platform_device *spitz_snd_device;
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static int __init spitz_init(void)
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{
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int ret;
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if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
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return -ENODEV;
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spitz_snd_device = platform_device_alloc("soc-audio", -1);
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if (!spitz_snd_device)
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return -ENOMEM;
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|
|
|
||
|
|
platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
|
||
|
|
spitz_snd_devdata.dev = &spitz_snd_device->dev;
|
||
|
|
ret = platform_device_add(spitz_snd_device);
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
platform_device_put(spitz_snd_device);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit spitz_exit(void)
|
||
|
|
{
|
||
|
|
platform_device_unregister(spitz_snd_device);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(spitz_init);
|
||
|
|
module_exit(spitz_exit);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Richard Purdie");
|
||
|
|
MODULE_DESCRIPTION("ALSA SoC Spitz");
|
||
|
|
MODULE_LICENSE("GPL");
|