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@@ -1,435 +0,0 @@
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-/*
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- * neo1973_gta02_wm8753.c -- SoC audio for Openmoko Freerunner(GTA02)
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- *
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- * Copyright 2007 Openmoko Inc
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- * Author: Graeme Gregory <graeme@openmoko.org>
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- * Copyright 2007 Wolfson Microelectronics PLC.
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- * Author: Graeme Gregory <linux@wolfsonmicro.com>
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- * Copyright 2009 Wolfson Microelectronics
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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/gpio.h>
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-
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-#include <sound/soc.h>
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-
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-#include <asm/mach-types.h>
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-#include <plat/regs-iis.h>
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-#include <mach/gta02.h>
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-
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-#include "../codecs/wm8753.h"
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-#include "s3c24xx-i2s.h"
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-
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-static struct snd_soc_card neo1973_gta02;
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-
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-static int neo1973_gta02_hifi_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->codec_dai;
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- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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- unsigned int pll_out = 0, bclk = 0;
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- int ret = 0;
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- unsigned long iis_clkrate;
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-
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- iis_clkrate = s3c24xx_i2s_get_clockrate();
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-
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- switch (params_rate(params)) {
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- case 8000:
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- case 16000:
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- pll_out = 12288000;
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- break;
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- case 48000:
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- bclk = WM8753_BCLK_DIV_4;
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- pll_out = 12288000;
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- break;
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- case 96000:
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- bclk = WM8753_BCLK_DIV_2;
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- pll_out = 12288000;
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- break;
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- case 11025:
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- bclk = WM8753_BCLK_DIV_16;
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- pll_out = 11289600;
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- break;
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- case 22050:
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- bclk = WM8753_BCLK_DIV_8;
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- pll_out = 11289600;
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- break;
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- case 44100:
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- bclk = WM8753_BCLK_DIV_4;
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- pll_out = 11289600;
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- break;
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- case 88200:
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- bclk = WM8753_BCLK_DIV_2;
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- pll_out = 11289600;
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- break;
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- }
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-
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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_I2S | SND_SOC_DAIFMT_NB_NF |
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- SND_SOC_DAIFMT_CBM_CFM);
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- if (ret < 0)
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- return ret;
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-
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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_I2S | SND_SOC_DAIFMT_NB_NF |
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- SND_SOC_DAIFMT_CBM_CFM);
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- if (ret < 0)
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- return ret;
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-
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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, WM8753_MCLK, pll_out,
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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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-
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- /* set MCLK division for sample rate */
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- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
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- S3C2410_IISMOD_32FS);
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- if (ret < 0)
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- return ret;
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-
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- /* set codec BCLK division for sample rate */
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- ret = snd_soc_dai_set_clkdiv(codec_dai,
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- WM8753_BCLKDIV, bclk);
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- if (ret < 0)
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- return ret;
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-
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- /* set prescaler division for sample rate */
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- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
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- S3C24XX_PRESCALE(4, 4));
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- if (ret < 0)
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- return ret;
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-
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- /* codec PLL input is PCLK/4 */
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- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
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- iis_clkrate / 4, pll_out);
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- if (ret < 0)
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- return ret;
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-
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- return 0;
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-}
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-
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-static int neo1973_gta02_hifi_hw_free(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_dai *codec_dai = rtd->codec_dai;
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-
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- /* disable the PLL */
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- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
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-}
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-
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-/*
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- * Neo1973 WM8753 HiFi DAI opserations.
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- */
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-static struct snd_soc_ops neo1973_gta02_hifi_ops = {
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- .hw_params = neo1973_gta02_hifi_hw_params,
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- .hw_free = neo1973_gta02_hifi_hw_free,
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-};
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-
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-static int neo1973_gta02_voice_hw_params(
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- 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->codec_dai;
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- unsigned int pcmdiv = 0;
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- int ret = 0;
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- unsigned long iis_clkrate;
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-
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- iis_clkrate = s3c24xx_i2s_get_clockrate();
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-
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- if (params_rate(params) != 8000)
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- return -EINVAL;
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- if (params_channels(params) != 1)
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- return -EINVAL;
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-
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- pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
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-
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- /* todo: gg check mode (DSP_B) against CSR datasheet */
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- /* set codec DAI configuration */
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- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
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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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-
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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, WM8753_PCMCLK,
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- 12288000, SND_SOC_CLOCK_IN);
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- if (ret < 0)
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- return ret;
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-
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- /* set codec PCM division for sample rate */
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- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV,
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- pcmdiv);
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- if (ret < 0)
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- return ret;
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-
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- /* configure and enable PLL for 12.288MHz output */
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- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
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- iis_clkrate / 4, 12288000);
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- if (ret < 0)
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- return ret;
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-
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- return 0;
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-}
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-
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-static int neo1973_gta02_voice_hw_free(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_dai *codec_dai = rtd->codec_dai;
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-
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- /* disable the PLL */
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- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
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-}
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-
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-static struct snd_soc_ops neo1973_gta02_voice_ops = {
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- .hw_params = neo1973_gta02_voice_hw_params,
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- .hw_free = neo1973_gta02_voice_hw_free,
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-};
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-
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-static int gta02_speaker_enabled;
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-
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-static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
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- struct snd_ctl_elem_value *ucontrol)
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-{
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- gta02_speaker_enabled = ucontrol->value.integer.value[0];
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-
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- gpio_set_value(GTA02_GPIO_HP_IN, !gta02_speaker_enabled);
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-
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- return 0;
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-}
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-
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-static int lm4853_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] = gta02_speaker_enabled;
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- return 0;
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-}
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-
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-static int lm4853_event(struct snd_soc_dapm_widget *w,
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- struct snd_kcontrol *k, int event)
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-{
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- gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
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-
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- return 0;
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-}
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-
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-static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
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- SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
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- SND_SOC_DAPM_LINE("GSM Line Out", NULL),
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- SND_SOC_DAPM_LINE("GSM Line In", NULL),
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- SND_SOC_DAPM_MIC("Headset Mic", NULL),
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- SND_SOC_DAPM_MIC("Handset Mic", NULL),
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- SND_SOC_DAPM_SPK("Handset Spk", NULL),
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-};
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-
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-
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-/* example machine audio_mapnections */
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-static const struct snd_soc_dapm_route audio_map[] = {
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-
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- /* Connections to the lm4853 amp */
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- {"Stereo Out", NULL, "LOUT1"},
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- {"Stereo Out", NULL, "ROUT1"},
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-
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- /* Connections to the GSM Module */
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- {"GSM Line Out", NULL, "MONO1"},
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- {"GSM Line Out", NULL, "MONO2"},
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- {"RXP", NULL, "GSM Line In"},
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- {"RXN", NULL, "GSM Line In"},
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-
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- /* Connections to Headset */
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- {"MIC1", NULL, "Mic Bias"},
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- {"Mic Bias", NULL, "Headset Mic"},
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-
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- /* Call Mic */
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- {"MIC2", NULL, "Mic Bias"},
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- {"MIC2N", NULL, "Mic Bias"},
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- {"Mic Bias", NULL, "Handset Mic"},
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-
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- /* Call Speaker */
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- {"Handset Spk", NULL, "LOUT2"},
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- {"Handset Spk", NULL, "ROUT2"},
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-
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- /* Connect the ALC pins */
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- {"ACIN", NULL, "ACOP"},
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-};
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-
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-static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
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- SOC_DAPM_PIN_SWITCH("Stereo Out"),
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- SOC_DAPM_PIN_SWITCH("GSM Line Out"),
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- SOC_DAPM_PIN_SWITCH("GSM Line In"),
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- SOC_DAPM_PIN_SWITCH("Headset Mic"),
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- SOC_DAPM_PIN_SWITCH("Handset Mic"),
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- SOC_DAPM_PIN_SWITCH("Handset Spk"),
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-
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- SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
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- lm4853_get_spk,
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- lm4853_set_spk),
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-};
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-
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-/*
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- * This is an example machine initialisation for a wm8753 connected to a
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- * neo1973 GTA02.
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- */
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-static int neo1973_gta02_wm8753_init(struct snd_soc_pcm_runtime *rtd)
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-{
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- struct snd_soc_codec *codec = rtd->codec;
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- struct snd_soc_dapm_context *dapm = &codec->dapm;
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- int err;
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-
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- /* set up NC codec pins */
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- snd_soc_dapm_nc_pin(dapm, "OUT3");
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- snd_soc_dapm_nc_pin(dapm, "OUT4");
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- snd_soc_dapm_nc_pin(dapm, "LINE1");
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- snd_soc_dapm_nc_pin(dapm, "LINE2");
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-
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- /* Add neo1973 gta02 specific widgets */
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- snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
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- ARRAY_SIZE(wm8753_dapm_widgets));
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-
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- /* add neo1973 gta02 specific controls */
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- err = snd_soc_add_controls(codec, wm8753_neo1973_gta02_controls,
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- ARRAY_SIZE(wm8753_neo1973_gta02_controls));
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-
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- if (err < 0)
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- return err;
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-
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- /* set up neo1973 gta02 specific audio path audio_map */
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- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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-
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- /* set endpoints to default off mode */
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- snd_soc_dapm_disable_pin(dapm, "Stereo Out");
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- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
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- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
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- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
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- snd_soc_dapm_disable_pin(dapm, "Handset Mic");
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- snd_soc_dapm_disable_pin(dapm, "Handset Spk");
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-
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- /* allow audio paths from the GSM modem to run during suspend */
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- snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
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- snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
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- snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
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- snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
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- snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");
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- snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
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-
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- snd_soc_dapm_sync(dapm);
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-
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- return 0;
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-}
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-
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-/*
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- * BT Codec DAI
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- */
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-static struct snd_soc_dai_driver bt_dai = {
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- .name = "bluetooth-dai",
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- .playback = {
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- .channels_min = 1,
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- .channels_max = 1,
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- .rates = SNDRV_PCM_RATE_8000,
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- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
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- .capture = {
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- .channels_min = 1,
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- .channels_max = 1,
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- .rates = SNDRV_PCM_RATE_8000,
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- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
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-};
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-
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-static struct snd_soc_dai_link neo1973_gta02_dai[] = {
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-{ /* Hifi Playback - for similatious use with voice below */
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- .name = "WM8753",
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- .stream_name = "WM8753 HiFi",
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- .cpu_dai_name = "s3c24xx-iis",
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- .codec_dai_name = "wm8753-hifi",
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- .init = neo1973_gta02_wm8753_init,
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- .platform_name = "samsung-audio",
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- .codec_name = "wm8753-codec.0-001a",
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- .ops = &neo1973_gta02_hifi_ops,
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-},
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-{ /* Voice via BT */
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- .name = "Bluetooth",
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- .stream_name = "Voice",
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- .cpu_dai_name = "bluetooth-dai",
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- .codec_dai_name = "wm8753-voice",
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- .ops = &neo1973_gta02_voice_ops,
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- .codec_name = "wm8753-codec.0-001a",
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- .platform_name = "samsung-audio",
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-},
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-};
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-
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-static struct snd_soc_card neo1973_gta02 = {
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- .name = "neo1973-gta02",
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- .dai_link = neo1973_gta02_dai,
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- .num_links = ARRAY_SIZE(neo1973_gta02_dai),
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-};
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-
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-static const struct gpio neo1973_gta02_gpios[] = {
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- { GTA02_GPIO_HP_IN, GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
|
|
|
- { GTA02_GPIO_AMP_SHUT, GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
|
|
|
-};
|
|
|
-
|
|
|
-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;
|
|
|
- }
|
|
|
-
|
|
|
- ret = gpio_request_array(neo1973_gta02_gpios,
|
|
|
- ARRAY_SIZE(neo1973_gta02_gpios));
|
|
|
- if (ret)
|
|
|
- return ret;
|
|
|
-
|
|
|
- neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
|
|
|
- if (!neo1973_gta02_snd_device) {
|
|
|
- ret = -ENOMEM;
|
|
|
- goto err_gpio_free;
|
|
|
- }
|
|
|
-
|
|
|
- /* register bluetooth DAI here */
|
|
|
- ret = snd_soc_register_dai(&neo1973_gta02_snd_device->dev, &bt_dai);
|
|
|
- if (ret)
|
|
|
- goto err_put_device;
|
|
|
-
|
|
|
- platform_set_drvdata(neo1973_gta02_snd_device, &neo1973_gta02);
|
|
|
- ret = platform_device_add(neo1973_gta02_snd_device);
|
|
|
-
|
|
|
- if (ret)
|
|
|
- goto err_unregister_dai;
|
|
|
-
|
|
|
- return 0;
|
|
|
-
|
|
|
-err_unregister_dai:
|
|
|
- snd_soc_unregister_dai(&neo1973_gta02_snd_device->dev);
|
|
|
-err_put_device:
|
|
|
- platform_device_put(neo1973_gta02_snd_device);
|
|
|
-err_gpio_free:
|
|
|
- gpio_free_array(neo1973_gta02_gpios, ARRAY_SIZE(neo1973_gta02_gpios));
|
|
|
- return ret;
|
|
|
-}
|
|
|
-module_init(neo1973_gta02_init);
|
|
|
-
|
|
|
-static void __exit neo1973_gta02_exit(void)
|
|
|
-{
|
|
|
- snd_soc_unregister_dai(&neo1973_gta02_snd_device->dev);
|
|
|
- platform_device_unregister(neo1973_gta02_snd_device);
|
|
|
- gpio_free_array(neo1973_gta02_gpios, ARRAY_SIZE(neo1973_gta02_gpios));
|
|
|
-}
|
|
|
-module_exit(neo1973_gta02_exit);
|
|
|
-
|
|
|
-/* Module information */
|
|
|
-MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
|
|
|
-MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
|
|
|
-MODULE_LICENSE("GPL");
|
Lars-Peter Clausen