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/*
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* uda134x.c -- UDA134X ALSA SoC Codec driver
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*
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* Modifications by Christian Pellegrin <chripell@evolware.org>
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*
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* Copyright 2007 Dension Audio Systems Ltd.
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* Author: Zoltan Devai
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*
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* Based on the WM87xx drivers by Liam Girdwood and Richard Purdie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/delay.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 <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include <sound/uda134x.h>
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#include <sound/l3.h>
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#include "uda134x_codec.h"
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#define POWER_OFF_ON_STANDBY 1
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/*
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ALSA SOC usually puts the device in standby mode when it's not used
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for sometime. If you define POWER_OFF_ON_STANDBY the driver will
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turn off the ADC/DAC when this callback is invoked and turn it back
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on when needed. Unfortunately this will result in a very light bump
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(it can be audible only with good earphones). If this bothers you
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just comment this line, you will have slightly higher power
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consumption . Please note that sending the L3 command for ADC is
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enough to make the bump, so it doesn't make difference if you
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completely take off power from the codec.
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*/
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#define UDA134X_RATES SNDRV_PCM_RATE_8000_48000
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#define UDA134X_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S20_3LE)
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struct uda134x_priv {
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int sysclk;
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int dai_fmt;
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struct snd_pcm_substream *master_substream;
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struct snd_pcm_substream *slave_substream;
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};
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/* In-data addresses are hard-coded into the reg-cache values */
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static const char uda134x_reg[UDA134X_REGS_NUM] = {
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/* Extended address registers */
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0x04, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* Status, data regs */
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0x00, 0x83, 0x00, 0x40, 0x80, 0x00,
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};
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/*
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* The codec has no support for reading its registers except for peak level...
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*/
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static inline unsigned int uda134x_read_reg_cache(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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u8 *cache = codec->reg_cache;
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if (reg >= UDA134X_REGS_NUM)
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return -1;
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return cache[reg];
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}
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/*
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* Write the register cache
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*/
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static inline void uda134x_write_reg_cache(struct snd_soc_codec *codec,
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u8 reg, unsigned int value)
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{
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u8 *cache = codec->reg_cache;
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if (reg >= UDA134X_REGS_NUM)
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return;
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cache[reg] = value;
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}
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/*
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* Write to the uda134x registers
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*
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*/
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static int uda134x_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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int ret;
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u8 addr;
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u8 data = value;
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struct uda134x_platform_data *pd = codec->control_data;
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pr_debug("%s reg: %02X, value:%02X\n", __func__, reg, value);
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if (reg >= UDA134X_REGS_NUM) {
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printk(KERN_ERR "%s unkown register: reg: %d",
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__func__, reg);
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return -EINVAL;
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}
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uda134x_write_reg_cache(codec, reg, value);
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switch (reg) {
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case UDA134X_STATUS0:
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case UDA134X_STATUS1:
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addr = UDA134X_STATUS_ADDR;
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break;
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case UDA134X_DATA000:
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case UDA134X_DATA001:
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case UDA134X_DATA010:
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addr = UDA134X_DATA0_ADDR;
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break;
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case UDA134X_DATA1:
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addr = UDA134X_DATA1_ADDR;
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break;
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default:
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/* It's an extended address register */
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addr = (reg | UDA134X_EXTADDR_PREFIX);
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ret = l3_write(&pd->l3,
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UDA134X_DATA0_ADDR, &addr, 1);
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if (ret != 1)
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return -EIO;
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addr = UDA134X_DATA0_ADDR;
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data = (value | UDA134X_EXTDATA_PREFIX);
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break;
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}
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ret = l3_write(&pd->l3,
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addr, &data, 1);
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if (ret != 1)
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return -EIO;
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return 0;
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}
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static inline void uda134x_reset(struct snd_soc_codec *codec)
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{
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u8 reset_reg = uda134x_read_reg_cache(codec, UDA134X_STATUS0);
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uda134x_write(codec, UDA134X_STATUS0, reset_reg | (1<<6));
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msleep(1);
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uda134x_write(codec, UDA134X_STATUS0, reset_reg & ~(1<<6));
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}
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static int uda134x_mute(struct snd_soc_dai *dai, int mute)
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{
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struct snd_soc_codec *codec = dai->codec;
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u8 mute_reg = uda134x_read_reg_cache(codec, UDA134X_DATA010);
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pr_debug("%s mute: %d\n", __func__, mute);
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if (mute)
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mute_reg |= (1<<2);
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else
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mute_reg &= ~(1<<2);
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uda134x_write(codec, UDA134X_DATA010, mute_reg & ~(1<<2));
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return 0;
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}
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static int uda134x_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_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->codec;
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struct uda134x_priv *uda134x = codec->private_data;
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struct snd_pcm_runtime *master_runtime;
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if (uda134x->master_substream) {
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master_runtime = uda134x->master_substream->runtime;
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pr_debug("%s constraining to %d bits at %d\n", __func__,
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master_runtime->sample_bits,
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master_runtime->rate);
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snd_pcm_hw_constraint_minmax(substream->runtime,
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SNDRV_PCM_HW_PARAM_RATE,
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master_runtime->rate,
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master_runtime->rate);
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snd_pcm_hw_constraint_minmax(substream->runtime,
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SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
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master_runtime->sample_bits,
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master_runtime->sample_bits);
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uda134x->slave_substream = substream;
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} else
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uda134x->master_substream = substream;
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return 0;
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}
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static void uda134x_shutdown(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_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->codec;
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struct uda134x_priv *uda134x = codec->private_data;
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if (uda134x->master_substream == substream)
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uda134x->master_substream = uda134x->slave_substream;
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uda134x->slave_substream = NULL;
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}
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static int uda134x_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_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->codec;
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struct uda134x_priv *uda134x = codec->private_data;
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u8 hw_params;
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if (substream == uda134x->slave_substream) {
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pr_debug("%s ignoring hw_params for slave substream\n",
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__func__);
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return 0;
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}
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hw_params = uda134x_read_reg_cache(codec, UDA134X_STATUS0);
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hw_params &= STATUS0_SYSCLK_MASK;
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hw_params &= STATUS0_DAIFMT_MASK;
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pr_debug("%s sysclk: %d, rate:%d\n", __func__,
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uda134x->sysclk, params_rate(params));
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/* set SYSCLK / fs ratio */
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switch (uda134x->sysclk / params_rate(params)) {
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case 512:
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break;
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case 384:
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hw_params |= (1<<4);
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break;
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case 256:
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hw_params |= (1<<5);
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break;
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default:
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printk(KERN_ERR "%s unsupported fs\n", __func__);
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return -EINVAL;
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}
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pr_debug("%s dai_fmt: %d, params_format:%d\n", __func__,
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uda134x->dai_fmt, params_format(params));
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/* set DAI format and word length */
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switch (uda134x->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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hw_params |= (1<<1);
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break;
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case SNDRV_PCM_FORMAT_S18_3LE:
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hw_params |= (1<<2);
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break;
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case SNDRV_PCM_FORMAT_S20_3LE:
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hw_params |= ((1<<2) | (1<<1));
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break;
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default:
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printk(KERN_ERR "%s unsupported format (right)\n",
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__func__);
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return -EINVAL;
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}
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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hw_params |= (1<<3);
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break;
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default:
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printk(KERN_ERR "%s unsupported format\n", __func__);
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return -EINVAL;
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}
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uda134x_write(codec, UDA134X_STATUS0, hw_params);
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return 0;
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}
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static int uda134x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
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int clk_id, unsigned int freq, int dir)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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struct uda134x_priv *uda134x = codec->private_data;
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pr_debug("%s clk_id: %d, freq: %d, dir: %d\n", __func__,
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clk_id, freq, dir);
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/* Anything between 256fs*8Khz and 512fs*48Khz should be acceptable
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because the codec is slave. Of course limitations of the clock
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master (the IIS controller) apply.
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We'll error out on set_hw_params if it's not OK */
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if ((freq >= (256 * 8000)) && (freq <= (512 * 48000))) {
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uda134x->sysclk = freq;
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return 0;
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}
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printk(KERN_ERR "%s unsupported sysclk\n", __func__);
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return -EINVAL;
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}
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static int uda134x_set_dai_fmt(struct snd_soc_dai *codec_dai,
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unsigned int fmt)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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struct uda134x_priv *uda134x = codec->private_data;
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pr_debug("%s fmt: %08X\n", __func__, fmt);
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/* codec supports only full slave mode */
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if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
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printk(KERN_ERR "%s unsupported slave mode\n", __func__);
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return -EINVAL;
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}
|
|
|
|
|
|
|
|
|
|
/* no support for clock inversion */
|
|
|
|
|
if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
|
|
|
|
|
printk(KERN_ERR "%s unsupported clock inversion\n", __func__);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We can't setup DAI format here as it depends on the word bit num */
|
|
|
|
|
/* so let's just store the value for later */
|
|
|
|
|
uda134x->dai_fmt = fmt;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int uda134x_set_bias_level(struct snd_soc_codec *codec,
|
|
|
|
|
enum snd_soc_bias_level level)
|
|
|
|
|
{
|
|
|
|
|
u8 reg;
|
|
|
|
|
struct uda134x_platform_data *pd = codec->control_data;
|
|
|
|
|
int i;
|
|
|
|
|
u8 *cache = codec->reg_cache;
|
|
|
|
|
|
|
|
|
|
pr_debug("%s bias level %d\n", __func__, level);
|
|
|
|
|
|
|
|
|
|
switch (level) {
|
|
|
|
|
case SND_SOC_BIAS_ON:
|
|
|
|
|
/* ADC, DAC on */
|
|
|
|
|
reg = uda134x_read_reg_cache(codec, UDA134X_STATUS1);
|
|
|
|
|
uda134x_write(codec, UDA134X_STATUS1, reg | 0x03);
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
|
|
|
/* power on */
|
|
|
|
|
if (pd->power) {
|
|
|
|
|
pd->power(1);
|
|
|
|
|
/* Sync reg_cache with the hardware */
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(uda134x_reg); i++)
|
|
|
|
|
codec->write(codec, i, *cache++);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
|
|
|
/* ADC, DAC power off */
|
|
|
|
|
reg = uda134x_read_reg_cache(codec, UDA134X_STATUS1);
|
|
|
|
|
uda134x_write(codec, UDA134X_STATUS1, reg & ~(0x03));
|
|
|
|
|
break;
|
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
|
|
|
/* power off */
|
|
|
|
|
if (pd->power)
|
|
|
|
|
pd->power(0);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
codec->bias_level = level;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const char *uda134x_dsp_setting[] = {"Flat", "Minimum1",
|
|
|
|
|
"Minimum2", "Maximum"};
|
|
|
|
|
static const char *uda134x_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
|
|
|
|
|
static const char *uda134x_mixmode[] = {"Differential", "Analog1",
|
|
|
|
|
"Analog2", "Both"};
|
|
|
|
|
|
|
|
|
|
static const struct soc_enum uda134x_mixer_enum[] = {
|
|
|
|
|
SOC_ENUM_SINGLE(UDA134X_DATA010, 0, 0x04, uda134x_dsp_setting),
|
|
|
|
|
SOC_ENUM_SINGLE(UDA134X_DATA010, 3, 0x04, uda134x_deemph),
|
|
|
|
|
SOC_ENUM_SINGLE(UDA134X_EA010, 0, 0x04, uda134x_mixmode),
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static const struct snd_kcontrol_new uda1341_snd_controls[] = {
|
|
|
|
|
SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1),
|
|
|
|
|
SOC_SINGLE("Capture Volume", UDA134X_EA010, 2, 0x07, 0),
|
|
|
|
|
SOC_SINGLE("Analog1 Volume", UDA134X_EA000, 0, 0x1F, 1),
|
|
|
|
|
SOC_SINGLE("Analog2 Volume", UDA134X_EA001, 0, 0x1F, 1),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("Mic Sensitivity", UDA134X_EA010, 2, 7, 0),
|
|
|
|
|
SOC_SINGLE("Mic Volume", UDA134X_EA101, 0, 0x1F, 0),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0),
|
|
|
|
|
SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0),
|
|
|
|
|
|
|
|
|
|
SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]),
|
|
|
|
|
SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
|
|
|
|
|
SOC_ENUM("Input Mux", uda134x_mixer_enum[2]),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("AGC Switch", UDA134X_EA100, 4, 1, 0),
|
|
|
|
|
SOC_SINGLE("AGC Target Volume", UDA134X_EA110, 0, 0x03, 1),
|
|
|
|
|
SOC_SINGLE("AGC Timing", UDA134X_EA110, 2, 0x07, 0),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("DAC +6dB Switch", UDA134X_STATUS1, 6, 1, 0),
|
|
|
|
|
SOC_SINGLE("ADC +6dB Switch", UDA134X_STATUS1, 5, 1, 0),
|
|
|
|
|
SOC_SINGLE("ADC Polarity Switch", UDA134X_STATUS1, 4, 1, 0),
|
|
|
|
|
SOC_SINGLE("DAC Polarity Switch", UDA134X_STATUS1, 3, 1, 0),
|
|
|
|
|
SOC_SINGLE("Double Speed Playback Switch", UDA134X_STATUS1, 2, 1, 0),
|
|
|
|
|
SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static const struct snd_kcontrol_new uda1340_snd_controls[] = {
|
|
|
|
|
SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0),
|
|
|
|
|
SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0),
|
|
|
|
|
|
|
|
|
|
SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]),
|
|
|
|
|
SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
|
|
|
|
|
|
|
|
|
|
SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int uda134x_add_controls(struct snd_soc_codec *codec)
|
|
|
|
|
{
|
|
|
|
|
int err, i, n;
|
|
|
|
|
const struct snd_kcontrol_new *ctrls;
|
|
|
|
|
struct uda134x_platform_data *pd = codec->control_data;
|
|
|
|
|
|
|
|
|
|
switch (pd->model) {
|
|
|
|
|
case UDA134X_UDA1340:
|
|
|
|
|
case UDA134X_UDA1344:
|
|
|
|
|
n = ARRAY_SIZE(uda1340_snd_controls);
|
|
|
|
|
ctrls = uda1340_snd_controls;
|
|
|
|
|
break;
|
|
|
|
|
case UDA134X_UDA1341:
|
|
|
|
|
n = ARRAY_SIZE(uda1341_snd_controls);
|
|
|
|
|
ctrls = uda1341_snd_controls;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
printk(KERN_ERR "%s unkown codec type: %d",
|
|
|
|
|
__func__, pd->model);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < n; i++) {
|
|
|
|
|
err = snd_ctl_add(codec->card,
|
|
|
|
|
snd_soc_cnew(&ctrls[i],
|
|
|
|
|
codec, NULL));
|
|
|
|
|
if (err < 0)
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct snd_soc_dai uda134x_dai = {
|
|
|
|
|
.name = "UDA134X",
|
|
|
|
|
/* playback capabilities */
|
|
|
|
|
.playback = {
|
|
|
|
|
.stream_name = "Playback",
|
|
|
|
|
.channels_min = 1,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = UDA134X_RATES,
|
|
|
|
|
.formats = UDA134X_FORMATS,
|
|
|
|
|
},
|
|
|
|
|
/* capture capabilities */
|
|
|
|
|
.capture = {
|
|
|
|
|
.stream_name = "Capture",
|
|
|
|
|
.channels_min = 1,
|
|
|
|
|
.channels_max = 2,
|
|
|
|
|
.rates = UDA134X_RATES,
|
|
|
|
|
.formats = UDA134X_FORMATS,
|
|
|
|
|
},
|
|
|
|
|
/* pcm operations */
|
|
|
|
|
.ops = {
|
|
|
|
|
.startup = uda134x_startup,
|
|
|
|
|
.shutdown = uda134x_shutdown,
|
|
|
|
|
.hw_params = uda134x_hw_params,
|
|
|
|
|
},
|
|
|
|
|
/* DAI operations */
|
|
|
|
|
.dai_ops = {
|
|
|
|
|
.digital_mute = uda134x_mute,
|
|
|
|
|
.set_sysclk = uda134x_set_dai_sysclk,
|
|
|
|
|
.set_fmt = uda134x_set_dai_fmt,
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
EXPORT_SYMBOL(uda134x_dai);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int uda134x_soc_probe(struct platform_device *pdev)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
|
|
|
struct snd_soc_codec *codec;
|
|
|
|
|
struct uda134x_priv *uda134x;
|
|
|
|
|
void *codec_setup_data = socdev->codec_data;
|
|
|
|
|
int ret = -ENOMEM;
|
|
|
|
|
struct uda134x_platform_data *pd;
|
|
|
|
|
|
|
|
|
|
printk(KERN_INFO "UDA134X SoC Audio Codec\n");
|
|
|
|
|
|
|
|
|
|
if (!codec_setup_data) {
|
|
|
|
|
printk(KERN_ERR "UDA134X SoC codec: "
|
|
|
|
|
"missing L3 bitbang function\n");
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pd = codec_setup_data;
|
|
|
|
|
switch (pd->model) {
|
|
|
|
|
case UDA134X_UDA1340:
|
|
|
|
|
case UDA134X_UDA1341:
|
|
|
|
|
case UDA134X_UDA1344:
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
printk(KERN_ERR "UDA134X SoC codec: "
|
|
|
|
|
"unsupported model %d\n",
|
|
|
|
|
pd->model);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
|
|
|
|
|
if (socdev->codec == NULL)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
codec = socdev->codec;
|
|
|
|
|
|
|
|
|
|
uda134x = kzalloc(sizeof(struct uda134x_priv), GFP_KERNEL);
|
|
|
|
|
if (uda134x == NULL)
|
|
|
|
|
goto priv_err;
|
|
|
|
|
codec->private_data = uda134x;
|
|
|
|
|
|
|
|
|
|
codec->reg_cache = kmemdup(uda134x_reg, sizeof(uda134x_reg),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
if (codec->reg_cache == NULL)
|
|
|
|
|
goto reg_err;
|
|
|
|
|
|
|
|
|
|
mutex_init(&codec->mutex);
|
|
|
|
|
|
|
|
|
|
codec->reg_cache_size = sizeof(uda134x_reg);
|
|
|
|
|
codec->reg_cache_step = 1;
|
|
|
|
|
|
|
|
|
|
codec->name = "UDA134X";
|
|
|
|
|
codec->owner = THIS_MODULE;
|
|
|
|
|
codec->dai = &uda134x_dai;
|
|
|
|
|
codec->num_dai = 1;
|
|
|
|
|
codec->read = uda134x_read_reg_cache;
|
|
|
|
|
codec->write = uda134x_write;
|
|
|
|
|
#ifdef POWER_OFF_ON_STANDBY
|
|
|
|
|
codec->set_bias_level = uda134x_set_bias_level;
|
|
|
|
|
#endif
|
|
|
|
|
INIT_LIST_HEAD(&codec->dapm_widgets);
|
|
|
|
|
INIT_LIST_HEAD(&codec->dapm_paths);
|
|
|
|
|
|
|
|
|
|
codec->control_data = codec_setup_data;
|
|
|
|
|
|
|
|
|
|
if (pd->power)
|
|
|
|
|
pd->power(1);
|
|
|
|
|
|
|
|
|
|
uda134x_reset(codec);
|
|
|
|
|
|
|
|
|
|
/* register pcms */
|
|
|
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
printk(KERN_ERR "UDA134X: failed to register pcms\n");
|
|
|
|
|
goto pcm_err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ret = uda134x_add_controls(codec);
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
printk(KERN_ERR "UDA134X: failed to register controls\n");
|
|
|
|
|
goto pcm_err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_register_card(socdev);
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
printk(KERN_ERR "UDA134X: failed to register card\n");
|
|
|
|
|
goto card_err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
card_err:
|
|
|
|
|
snd_soc_free_pcms(socdev);
|
|
|
|
|
snd_soc_dapm_free(socdev);
|
|
|
|
|
pcm_err:
|
|
|
|
|
kfree(codec->reg_cache);
|
|
|
|
|
reg_err:
|
|
|
|
|
kfree(codec->private_data);
|
|
|
|
|
priv_err:
|
|
|
|
|
kfree(codec);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* power down chip */
|
|
|
|
|
static int uda134x_soc_remove(struct platform_device *pdev)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
|
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
|
|
|
|
|
|
|
|
uda134x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
|
uda134x_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
|
|
|
|
|
snd_soc_free_pcms(socdev);
|
|
|
|
|
snd_soc_dapm_free(socdev);
|
|
|
|
|
|
|
|
|
|
kfree(codec->private_data);
|
|
|
|
|
kfree(codec->reg_cache);
|
|
|
|
|
kfree(codec);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if defined(CONFIG_PM)
|
|
|
|
|
static int uda134x_soc_suspend(struct platform_device *pdev,
|
|
|
|
|
pm_message_t state)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
|
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
|
|
|
|
|
|
|
|
uda134x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
|
uda134x_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int uda134x_soc_resume(struct platform_device *pdev)
|
|
|
|
|
{
|
|
|
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
|
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
|
|
|
|
|
|
|
|
uda134x_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
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uda134x_set_bias_level(codec, SND_SOC_BIAS_ON);
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return 0;
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}
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#else
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#define uda134x_soc_suspend NULL
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#define uda134x_soc_resume NULL
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#endif /* CONFIG_PM */
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struct snd_soc_codec_device soc_codec_dev_uda134x = {
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.probe = uda134x_soc_probe,
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.remove = uda134x_soc_remove,
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.suspend = uda134x_soc_suspend,
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.resume = uda134x_soc_resume,
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};
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EXPORT_SYMBOL_GPL(soc_codec_dev_uda134x);
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MODULE_DESCRIPTION("UDA134X ALSA soc codec driver");
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MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");
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MODULE_LICENSE("GPL");
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Christian Pellegrin
Mark Brown