--- /dev/null
+/*
+ * neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices
+ *
+ * Copyright 2007 Openmoko Inc
+ * Author: Graeme Gregory <graeme@openmoko.org>
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or 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/platform_device.h>
+#include <linux/gpio.h>
+
+#include <sound/soc.h>
+
+#include <mach/gpio-samsung.h>
+#include <asm/mach-types.h>
+#include "regs-iis.h"
+
+#include "../codecs/wm8753.h"
+#include "s3c24xx-i2s.h"
+
+static int neo1973_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->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->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 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, 0,
+ iis_clkrate / 4, pll_out);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
+}
+
+/*
+ * Neo1973 WM8753 HiFi DAI opserations.
+ */
+static struct snd_soc_ops neo1973_hifi_ops = {
+ .hw_params = neo1973_hifi_hw_params,
+ .hw_free = neo1973_hifi_hw_free,
+};
+
+static int neo1973_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->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 */
+
+ /* 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;
+
+ /* configure and enable PLL for 12.288MHz output */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
+ iis_clkrate / 4, 12288000);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
+}
+
+static struct snd_soc_ops neo1973_voice_ops = {
+ .hw_params = neo1973_voice_hw_params,
+ .hw_free = neo1973_voice_hw_free,
+};
+
+static int gta02_speaker_enabled;
+
+static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ gta02_speaker_enabled = ucontrol->value.integer.value[0];
+
+ gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled);
+
+ return 0;
+}
+
+static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = gta02_speaker_enabled;
+ return 0;
+}
+
+static int lm4853_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
+ 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),
+ SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
+};
+
+static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
+ /* 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"},
+
+ /* Connect the ALC pins */
+ {"ACIN", NULL, "ACOP"},
+
+ /* Connections to the amp */
+ {"Stereo Out", NULL, "LOUT1"},
+ {"Stereo Out", NULL, "ROUT1"},
+
+ /* Call Speaker */
+ {"Handset Spk", NULL, "LOUT2"},
+ {"Handset Spk", NULL, "ROUT2"},
+};
+
+static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
+ 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"),
+ SOC_DAPM_PIN_SWITCH("Stereo Out"),
+
+ SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
+ lm4853_get_spk,
+ lm4853_set_spk),
+};
+
+static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_card *card = rtd->card;
+
+ /* set endpoints to default off mode */
+ snd_soc_dapm_disable_pin(&card->dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(&card->dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(&card->dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(&card->dapm, "Handset Mic");
+ snd_soc_dapm_disable_pin(&card->dapm, "Stereo Out");
+ snd_soc_dapm_disable_pin(&card->dapm, "Handset Spk");
+
+ /* allow audio paths from the GSM modem to run during suspend */
+ snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line Out");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line In");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Mic");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Stereo Out");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Spk");
+
+ return 0;
+}
+
+static struct snd_soc_dai_link neo1973_dai[] = {
+{ /* Hifi Playback - for similatious use with voice below */
+ .name = "WM8753",
+ .stream_name = "WM8753 HiFi",
+ .platform_name = "s3c24xx-iis",
+ .cpu_dai_name = "s3c24xx-iis",
+ .codec_dai_name = "wm8753-hifi",
+ .codec_name = "wm8753.0-001a",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+ .init = neo1973_wm8753_init,
+ .ops = &neo1973_hifi_ops,
+},
+{ /* Voice via BT */
+ .name = "Bluetooth",
+ .stream_name = "Voice",
+ .cpu_dai_name = "bt-sco-pcm",
+ .codec_dai_name = "wm8753-voice",
+ .codec_name = "wm8753.0-001a",
+ .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &neo1973_voice_ops,
+},
+};
+
+static struct snd_soc_aux_dev neo1973_aux_devs[] = {
+ {
+ .name = "dfbmcs320",
+ .codec_name = "dfbmcs320.0",
+ },
+};
+
+static struct snd_soc_codec_conf neo1973_codec_conf[] = {
+ {
+ .dev_name = "lm4857.0-007c",
+ .name_prefix = "Amp",
+ },
+};
+
+static const struct gpio neo1973_gta02_gpios[] = {
+ { S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
+ { S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
+};
+
+static struct snd_soc_card neo1973 = {
+ .name = "neo1973",
+ .owner = THIS_MODULE,
+ .dai_link = neo1973_dai,
+ .num_links = ARRAY_SIZE(neo1973_dai),
+ .aux_dev = neo1973_aux_devs,
+ .num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
+ .codec_conf = neo1973_codec_conf,
+ .num_configs = ARRAY_SIZE(neo1973_codec_conf),
+
+ .controls = neo1973_wm8753_controls,
+ .num_controls = ARRAY_SIZE(neo1973_wm8753_controls),
+ .dapm_widgets = neo1973_wm8753_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(neo1973_wm8753_dapm_widgets),
+ .dapm_routes = neo1973_wm8753_routes,
+ .num_dapm_routes = ARRAY_SIZE(neo1973_wm8753_routes),
+ .fully_routed = true,
+};
+
+static struct platform_device *neo1973_snd_device;
+
+static int __init neo1973_init(void)
+{
+ int ret;
+
+ if (!machine_is_neo1973_gta02())
+ return -ENODEV;
+
+ if (machine_is_neo1973_gta02()) {
+ neo1973.name = "neo1973gta02";
+ neo1973.num_aux_devs = 1;
+
+ ret = gpio_request_array(neo1973_gta02_gpios,
+ ARRAY_SIZE(neo1973_gta02_gpios));
+ if (ret)
+ return ret;
+ }
+
+ neo1973_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!neo1973_snd_device) {
+ ret = -ENOMEM;
+ goto err_gpio_free;
+ }
+
+ platform_set_drvdata(neo1973_snd_device, &neo1973);
+ ret = platform_device_add(neo1973_snd_device);
+
+ if (ret)
+ goto err_put_device;
+
+ return 0;
+
+err_put_device:
+ platform_device_put(neo1973_snd_device);
+err_gpio_free:
+ if (machine_is_neo1973_gta02()) {
+ gpio_free_array(neo1973_gta02_gpios,
+ ARRAY_SIZE(neo1973_gta02_gpios));
+ }
+ return ret;
+}
+module_init(neo1973_init);
+
+static void __exit neo1973_exit(void)
+{
+ platform_device_unregister(neo1973_snd_device);
+
+ if (machine_is_neo1973_gta02()) {
+ gpio_free_array(neo1973_gta02_gpios,
+ ARRAY_SIZE(neo1973_gta02_gpios));
+ }
+}
+module_exit(neo1973_exit);
+
+/* Module information */
+MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
+MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff