+++ /dev/null
-/*
- * neo1973_gta02_wm8753.c -- SoC audio for Openmoko freerunner
- *
- * Copyright 2007 Openmoko Inc
- * Author: Graeme Gregory <graeme@openmoko.org>
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory <linux@wolfsonmicro.com>
- * Copyright 2009 Wolfson Microelectronics
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include <sound/soc-dapm.h>
-#include <sound/jack.h>
-
-#include <asm/mach-types.h>
-
-#include <plat/regs-iis.h>
-
-#include <mach/regs-clock.h>
-#include <mach/regs-gpio.h>
-#include <mach/hardware.h>
-#include <asm/io.h>
-#include <mach/regs-gpioj.h>
-#include <mach/gta02.h>
-#include "../codecs/wm8753.h"
-#include "s3c24xx-pcm.h"
-#include "s3c24xx-i2s.h"
-
-static struct snd_soc_card neo1973_gta02;
-static struct snd_soc_jack gta02_hs_jack;
-
-static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
- unsigned int pll_out = 0, bclk = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- switch (params_rate(params)) {
- case 8000:
- case 16000:
- pll_out = 12288000;
- break;
- case 48000:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 12288000;
- break;
- case 96000:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 12288000;
- break;
- case 11025:
- bclk = WM8753_BCLK_DIV_16;
- pll_out = 11289600;
- break;
- case 22050:
- bclk = WM8753_BCLK_DIV_8;
- pll_out = 11289600;
- break;
- case 44100:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 11289600;
- break;
- case 88200:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 11289600;
- break;
- }
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set MCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
- S3C2410_IISMOD_32FS);
- if (ret < 0)
- return ret;
-
- /* set codec BCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai,
- WM8753_BCLKDIV, bclk);
- if (ret < 0)
- return ret;
-
- /* set prescaler division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- S3C24XX_PRESCALE(4, 4));
- if (ret < 0)
- return ret;
-
- /* codec PLL input is PCLK/4 */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1,
- iis_clkrate / 4, pll_out);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0);
-}
-
-/*
- * Neo1973 WM8753 HiFi DAI opserations.
- */
-static struct snd_soc_ops neo1973_gta02_hifi_ops = {
- .hw_params = neo1973_gta02_hifi_hw_params,
- .hw_free = neo1973_gta02_hifi_hw_free,
-};
-
-static int neo1973_gta02_voice_hw_params(
- struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
- unsigned int pcmdiv = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- if (params_rate(params) != 8000)
- return -EINVAL;
- if (params_channels(params) != 1)
- return -EINVAL;
-
- pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
-
- /* todo: gg check mode (DSP_B) against CSR datasheet */
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK,
- 12288000, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set codec PCM division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV,
- pcmdiv);
- if (ret < 0)
- return ret;
-
- /* configue and enable PLL for 12.288MHz output */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2,
- iis_clkrate / 4, 12288000);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0);
-}
-
-static struct snd_soc_ops neo1973_gta02_voice_ops = {
- .hw_params = neo1973_gta02_voice_hw_params,
- .hw_free = neo1973_gta02_voice_hw_free,
-};
-
-#define LM4853_AMP 1
-#define LM4853_SPK 2
-
-static u8 lm4853_state;
-
-/* This has no effect, it exists only to maintain compatibility with
- * existing ALSA state files.
- */
-static int lm4853_set_state(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- int val = ucontrol->value.integer.value[0];
-
- if (val)
- lm4853_state |= LM4853_AMP;
- else
- lm4853_state &= ~LM4853_AMP;
-
- return 0;
-}
-
-static int lm4853_get_state(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP;
-
- return 0;
-}
-
-static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- int val = ucontrol->value.integer.value[0];
-
- if (val) {
- lm4853_state |= LM4853_SPK;
- s3c2410_gpio_setpin(GTA02_GPIO_HP_IN, 0);
- } else {
- lm4853_state &= ~LM4853_SPK;
- s3c2410_gpio_setpin(GTA02_GPIO_HP_IN, 1);
- }
-
- return 0;
-}
-
-static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1;
-
- return 0;
-}
-
-static int lm4853_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *k,
- int event)
-{
- if (SND_SOC_DAPM_EVENT_ON(event))
- s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 0);
-
- if (SND_SOC_DAPM_EVENT_OFF(event))
- s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1);
-
- return 0;
-}
-
-static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
- SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
- SND_SOC_DAPM_LINE("GSM Line Out", NULL),
- SND_SOC_DAPM_LINE("GSM Line In", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
- SND_SOC_DAPM_MIC("Handset Mic", NULL),
- SND_SOC_DAPM_SPK("Handset Spk", NULL),
-};
-
-
-/* example machine audio_mapnections */
-static const struct snd_soc_dapm_route audio_map[] = {
-
- /* Connections to the lm4853 amp */
- {"Stereo Out", NULL, "LOUT1"},
- {"Stereo Out", NULL, "ROUT1"},
-
- /* Connections to the GSM Module */
- {"GSM Line Out", NULL, "MONO1"},
- {"GSM Line Out", NULL, "MONO2"},
- {"RXP", NULL, "GSM Line In"},
- {"RXN", NULL, "GSM Line In"},
-
- /* Connections to Headset */
- {"MIC1", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Headset Mic"},
-
- /* Call Mic */
- {"MIC2", NULL, "Mic Bias"},
- {"MIC2N", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Handset Mic"},
-
- /* Call Speaker */
- {"Handset Spk", NULL, "LOUT2"},
- {"Handset Spk", NULL, "ROUT2"},
-
- /* Connect the ALC pins */
- {"ACIN", NULL, "ACOP"},
-};
-
-static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
- SOC_DAPM_PIN_SWITCH("Stereo Out"),
- SOC_DAPM_PIN_SWITCH("GSM Line Out"),
- SOC_DAPM_PIN_SWITCH("GSM Line In"),
- SOC_DAPM_PIN_SWITCH("Headset Mic"),
- SOC_DAPM_PIN_SWITCH("Handset Mic"),
- SOC_DAPM_PIN_SWITCH("Handset Spk"),
-
- /* This has no effect, it exists only to maintain compatibility with
- * existing ALSA state files.
- */
- SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0,
- lm4853_get_state,
- lm4853_set_state),
- SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0,
- lm4853_get_spk,
- lm4853_set_spk),
-};
-
-static struct snd_soc_jack_pin gta02_hs_jack_pins[] = {
- {
- .pin = "Headset Mic",
- .mask = SND_JACK_MICROPHONE
- },
- {
- .pin = "Stereo Out",
- .mask = SND_JACK_HEADPHONE,
- .invert = 1,
- },
-};
-
-static struct snd_soc_jack_gpio gta02_hs_jack_gpios[] = {
- {
- .gpio = GTA02_GPIO_JACK_INSERT,
- .name = "headset-gpio",
- .report = SND_JACK_HEADSET,
- .debounce_time = 100,
- },
-};
-
-/*
- * This is an example machine initialisation for a wm8753 connected to a
- * neo1973 GTA02.
- */
-static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
-{
- int err;
-
- /* set up NC codec pins */
- snd_soc_dapm_nc_pin(codec, "OUT3");
- snd_soc_dapm_nc_pin(codec, "OUT4");
- snd_soc_dapm_nc_pin(codec, "LINE1");
- snd_soc_dapm_nc_pin(codec, "LINE2");
-
- /* Add neo1973 gta02 specific widgets */
- snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
- ARRAY_SIZE(wm8753_dapm_widgets));
-
- /* add neo1973 gta02 specific controls */
- err = snd_soc_add_controls(codec, wm8753_neo1973_gta02_controls,
- ARRAY_SIZE(wm8753_neo1973_gta02_controls));
-
- if (err < 0)
- return err;
-
- /* set up neo1973 gta02 specific audio path audio_map */
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
- /* set endpoints to default off mode */
- snd_soc_dapm_disable_pin(codec, "Stereo Out");
- snd_soc_dapm_disable_pin(codec, "GSM Line Out");
- snd_soc_dapm_disable_pin(codec, "GSM Line In");
- snd_soc_dapm_disable_pin(codec, "Headset Mic");
- snd_soc_dapm_disable_pin(codec, "Handset Mic");
- snd_soc_dapm_disable_pin(codec, "Handset Spk");
-
- snd_soc_dapm_sync(codec);
-
- err = snd_soc_jack_new(&neo1973_gta02, "Headset Jack",
- SND_JACK_HEADSET, >a02_hs_jack);
- if (err) {
- dev_err(codec->card->dev, "failed to alloc headset jack\n");
- return err;
- }
-
- err = snd_soc_jack_add_pins(>a02_hs_jack, ARRAY_SIZE(gta02_hs_jack_pins),
- gta02_hs_jack_pins);
- if (err) {
- dev_err(codec->card->dev, "failed to add headset jack pins\n");
- return err;
- }
-
- err = snd_soc_jack_add_gpios(>a02_hs_jack, ARRAY_SIZE(gta02_hs_jack_gpios),
- gta02_hs_jack_gpios);
- if (err) {
- dev_err(codec->card->dev, "failed to add headset jack gpios\n");
- return err;
- }
-
-
- return 0;
-}
-
-/*
- * BT Codec DAI
- */
-static struct snd_soc_dai bt_dai = {
- .name = "Bluetooth",
- .id = 0,
- .playback = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
-};
-
-static struct snd_soc_dai_link neo1973_gta02_dai[] = {
-{ /* Hifi Playback - for similatious use with voice below */
- .name = "WM8753",
- .stream_name = "WM8753 HiFi",
- .cpu_dai = &s3c24xx_i2s_dai,
- .codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
- .init = neo1973_gta02_wm8753_init,
- .ops = &neo1973_gta02_hifi_ops,
-},
-{ /* Voice via BT */
- .name = "Bluetooth",
- .stream_name = "Voice",
- .cpu_dai = &bt_dai,
- .codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
- .ops = &neo1973_gta02_voice_ops,
-},
-};
-
-static struct snd_soc_card neo1973_gta02 = {
- .name = "neo1973-gta02",
- .platform = &s3c24xx_soc_platform,
- .dai_link = neo1973_gta02_dai,
- .num_links = ARRAY_SIZE(neo1973_gta02_dai),
-};
-
-static struct snd_soc_device neo1973_gta02_snd_devdata = {
- .card = &neo1973_gta02,
- .codec_dev = &soc_codec_dev_wm8753,
-};
-
-static struct platform_device *neo1973_gta02_snd_device;
-
-
-static int __init neo1973_gta02_init(void)
-{
- int ret;
-
- if (!machine_is_neo1973_gta02()) {
- printk(KERN_INFO
- "Only GTA02 is supported by this ASoC driver\n");
- return -ENODEV;
- }
-
- /* register bluetooth DAI here */
- ret = snd_soc_register_dai(&bt_dai);
- if (ret)
- return ret;
-
- neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
- if (!neo1973_gta02_snd_device) {
- ret = -ENOMEM;
- goto err_unregister_dai;
- }
-
- platform_set_drvdata(neo1973_gta02_snd_device,
- &neo1973_gta02_snd_devdata);
- neo1973_gta02_snd_devdata.dev = &neo1973_gta02_snd_device->dev;
- ret = platform_device_add(neo1973_gta02_snd_device);
-
- if (ret) {
- platform_device_put(neo1973_gta02_snd_device);
- goto err_unregister_dai;
- }
-
- /* Initialise GPIOs used by amp */
- s3c2410_gpio_cfgpin(GTA02_GPIO_HP_IN, S3C2410_GPIO_OUTPUT);
- s3c2410_gpio_cfgpin(GTA02_GPIO_AMP_SHUT, S3C2410_GPIO_OUTPUT);
-
- /* Amp off by default */
- s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1);
-
- /* Speaker off by default */
- s3c2410_gpio_setpin(GTA02_GPIO_HP_IN, 1);
-
-
- return 0;
-
-err_unregister_dai:
- snd_soc_unregister_dai(&bt_dai);
- return ret;
-}
-module_init(neo1973_gta02_init);
-
-static void __exit neo1973_gta02_exit(void)
-{
- snd_soc_unregister_dai(&bt_dai);
- snd_soc_jack_free_gpios(>a02_hs_jack, ARRAY_SIZE(gta02_hs_jack_gpios),
- gta02_hs_jack_gpios);
-
- platform_device_unregister(neo1973_gta02_snd_device);
-}
-module_exit(neo1973_gta02_exit);
-
-/* Module information */
-MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
-MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
-MODULE_LICENSE("GPL");
projects / openwrt / svn-archive / archive.git / blobdiff