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588 lines
16 KiB
588 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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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 <[email protected]> |
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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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|
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#include <linux/module.h> |
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#include <linux/delay.h> |
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#include <linux/slab.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/initval.h> |
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#include <sound/uda134x.h> |
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#include <sound/l3.h> |
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#include "uda134x.h" |
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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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struct regmap *regmap; |
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struct uda134x_platform_data *pd; |
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}; |
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static const struct reg_default uda134x_reg_defaults[] = { |
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{ UDA134X_EA000, 0x04 }, |
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{ UDA134X_EA001, 0x04 }, |
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{ UDA134X_EA010, 0x04 }, |
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{ UDA134X_EA011, 0x00 }, |
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{ UDA134X_EA100, 0x00 }, |
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{ UDA134X_EA101, 0x00 }, |
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{ UDA134X_EA110, 0x00 }, |
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{ UDA134X_EA111, 0x00 }, |
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{ UDA134X_STATUS0, 0x00 }, |
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{ UDA134X_STATUS1, 0x03 }, |
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{ UDA134X_DATA000, 0x00 }, |
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{ UDA134X_DATA001, 0x00 }, |
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{ UDA134X_DATA010, 0x00 }, |
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{ UDA134X_DATA011, 0x00 }, |
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{ UDA134X_DATA1, 0x00 }, |
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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_regmap_write(void *context, unsigned int reg, |
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unsigned int value) |
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{ |
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struct uda134x_platform_data *pd = context; |
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int ret; |
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u8 addr; |
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u8 data = 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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data |= (reg - UDA134X_STATUS0) << 7; |
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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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case UDA134X_DATA011: |
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addr = UDA134X_DATA0_ADDR; |
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data |= (reg - UDA134X_DATA000) << 6; |
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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_component *component) |
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{ |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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unsigned int mask = 1<<6; |
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regmap_update_bits(uda134x->regmap, UDA134X_STATUS0, mask, mask); |
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msleep(1); |
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regmap_update_bits(uda134x->regmap, UDA134X_STATUS0, mask, 0); |
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} |
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static int uda134x_mute(struct snd_soc_dai *dai, int mute, int direction) |
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{ |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(dai->component); |
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unsigned int mask = 1<<2; |
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unsigned int val; |
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pr_debug("%s mute: %d\n", __func__, mute); |
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if (mute) |
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val = mask; |
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else |
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val = 0; |
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return regmap_update_bits(uda134x->regmap, UDA134X_DATA010, mask, val); |
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} |
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static int uda134x_startup(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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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_single(substream->runtime, |
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SNDRV_PCM_HW_PARAM_RATE, |
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master_runtime->rate); |
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snd_pcm_hw_constraint_single(substream->runtime, |
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SNDRV_PCM_HW_PARAM_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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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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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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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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unsigned int hw_params = 0; |
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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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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_width(params)) { |
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case 16: |
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hw_params |= (1<<1); |
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break; |
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case 18: |
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hw_params |= (1<<2); |
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break; |
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case 20: |
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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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return regmap_update_bits(uda134x->regmap, UDA134X_STATUS0, |
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STATUS0_SYSCLK_MASK | STATUS0_DAIFMT_MASK, hw_params); |
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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_component *component = codec_dai->component; |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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pr_debug("%s clk_id: %d, freq: %u, 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_component *component = codec_dai->component; |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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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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} |
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/* no support for clock inversion */ |
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if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) { |
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printk(KERN_ERR "%s unsupported clock inversion\n", __func__); |
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return -EINVAL; |
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} |
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/* We can't setup DAI format here as it depends on the word bit num */ |
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/* so let's just store the value for later */ |
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uda134x->dai_fmt = fmt; |
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return 0; |
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} |
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static int uda134x_set_bias_level(struct snd_soc_component *component, |
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enum snd_soc_bias_level level) |
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{ |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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struct uda134x_platform_data *pd = uda134x->pd; |
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pr_debug("%s bias level %d\n", __func__, level); |
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switch (level) { |
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case SND_SOC_BIAS_ON: |
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break; |
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case SND_SOC_BIAS_PREPARE: |
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/* power on */ |
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if (pd->power) { |
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pd->power(1); |
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regcache_sync(uda134x->regmap); |
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} |
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break; |
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case SND_SOC_BIAS_STANDBY: |
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break; |
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case SND_SOC_BIAS_OFF: |
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/* power off */ |
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if (pd->power) { |
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pd->power(0); |
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regcache_mark_dirty(uda134x->regmap); |
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} |
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break; |
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} |
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return 0; |
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} |
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static const char *uda134x_dsp_setting[] = {"Flat", "Minimum1", |
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"Minimum2", "Maximum"}; |
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static const char *uda134x_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; |
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static const char *uda134x_mixmode[] = {"Differential", "Analog1", |
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"Analog2", "Both"}; |
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static const struct soc_enum uda134x_mixer_enum[] = { |
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SOC_ENUM_SINGLE(UDA134X_DATA010, 0, 0x04, uda134x_dsp_setting), |
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SOC_ENUM_SINGLE(UDA134X_DATA010, 3, 0x04, uda134x_deemph), |
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SOC_ENUM_SINGLE(UDA134X_EA010, 0, 0x04, uda134x_mixmode), |
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}; |
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static const struct snd_kcontrol_new uda1341_snd_controls[] = { |
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SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1), |
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SOC_SINGLE("Capture Volume", UDA134X_EA010, 2, 0x07, 0), |
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SOC_SINGLE("Analog1 Volume", UDA134X_EA000, 0, 0x1F, 1), |
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SOC_SINGLE("Analog2 Volume", UDA134X_EA001, 0, 0x1F, 1), |
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SOC_SINGLE("Mic Sensitivity", UDA134X_EA010, 2, 7, 0), |
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SOC_SINGLE("Mic Volume", UDA134X_EA101, 0, 0x1F, 0), |
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SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0), |
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SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0), |
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SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]), |
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SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]), |
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SOC_ENUM("Input Mux", uda134x_mixer_enum[2]), |
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SOC_SINGLE("AGC Switch", UDA134X_EA100, 4, 1, 0), |
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SOC_SINGLE("AGC Target Volume", UDA134X_EA110, 0, 0x03, 1), |
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SOC_SINGLE("AGC Timing", UDA134X_EA110, 2, 0x07, 0), |
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SOC_SINGLE("DAC +6dB Switch", UDA134X_STATUS1, 6, 1, 0), |
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SOC_SINGLE("ADC +6dB Switch", UDA134X_STATUS1, 5, 1, 0), |
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SOC_SINGLE("ADC Polarity Switch", UDA134X_STATUS1, 4, 1, 0), |
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SOC_SINGLE("DAC Polarity Switch", UDA134X_STATUS1, 3, 1, 0), |
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SOC_SINGLE("Double Speed Playback Switch", UDA134X_STATUS1, 2, 1, 0), |
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SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0), |
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}; |
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static const struct snd_kcontrol_new uda1340_snd_controls[] = { |
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SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1), |
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SOC_SINGLE("Tone Control - Bass", UDA134X_DATA001, 2, 0xF, 0), |
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SOC_SINGLE("Tone Control - Treble", UDA134X_DATA001, 0, 3, 0), |
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SOC_ENUM("Sound Processing Filter", uda134x_mixer_enum[0]), |
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SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]), |
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SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0), |
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}; |
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static const struct snd_kcontrol_new uda1345_snd_controls[] = { |
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SOC_SINGLE("Master Playback Volume", UDA134X_DATA000, 0, 0x3F, 1), |
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SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]), |
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SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0), |
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}; |
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/* UDA1341 has the DAC/ADC power down in STATUS1 */ |
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static const struct snd_soc_dapm_widget uda1341_dapm_widgets[] = { |
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SND_SOC_DAPM_DAC("DAC", "Playback", UDA134X_STATUS1, 0, 0), |
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SND_SOC_DAPM_ADC("ADC", "Capture", UDA134X_STATUS1, 1, 0), |
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}; |
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/* UDA1340/4/5 has the DAC/ADC pwoer down in DATA0 11 */ |
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static const struct snd_soc_dapm_widget uda1340_dapm_widgets[] = { |
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SND_SOC_DAPM_DAC("DAC", "Playback", UDA134X_DATA011, 0, 0), |
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SND_SOC_DAPM_ADC("ADC", "Capture", UDA134X_DATA011, 1, 0), |
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}; |
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/* Common DAPM widgets */ |
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static const struct snd_soc_dapm_widget uda134x_dapm_widgets[] = { |
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SND_SOC_DAPM_INPUT("VINL1"), |
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SND_SOC_DAPM_INPUT("VINR1"), |
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SND_SOC_DAPM_INPUT("VINL2"), |
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SND_SOC_DAPM_INPUT("VINR2"), |
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SND_SOC_DAPM_OUTPUT("VOUTL"), |
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SND_SOC_DAPM_OUTPUT("VOUTR"), |
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}; |
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static const struct snd_soc_dapm_route uda134x_dapm_routes[] = { |
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{ "ADC", NULL, "VINL1" }, |
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{ "ADC", NULL, "VINR1" }, |
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{ "ADC", NULL, "VINL2" }, |
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{ "ADC", NULL, "VINR2" }, |
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{ "VOUTL", NULL, "DAC" }, |
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{ "VOUTR", NULL, "DAC" }, |
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}; |
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static const struct snd_soc_dai_ops uda134x_dai_ops = { |
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.startup = uda134x_startup, |
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.shutdown = uda134x_shutdown, |
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.hw_params = uda134x_hw_params, |
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.mute_stream = uda134x_mute, |
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.set_sysclk = uda134x_set_dai_sysclk, |
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.set_fmt = uda134x_set_dai_fmt, |
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.no_capture_mute = 1, |
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}; |
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static struct snd_soc_dai_driver uda134x_dai = { |
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.name = "uda134x-hifi", |
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/* playback capabilities */ |
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.playback = { |
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.stream_name = "Playback", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = UDA134X_RATES, |
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.formats = UDA134X_FORMATS, |
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}, |
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/* capture capabilities */ |
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.capture = { |
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.stream_name = "Capture", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = UDA134X_RATES, |
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.formats = UDA134X_FORMATS, |
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}, |
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/* pcm operations */ |
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.ops = &uda134x_dai_ops, |
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}; |
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|
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static int uda134x_soc_probe(struct snd_soc_component *component) |
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{ |
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struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
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struct uda134x_priv *uda134x = snd_soc_component_get_drvdata(component); |
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struct uda134x_platform_data *pd = uda134x->pd; |
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const struct snd_soc_dapm_widget *widgets; |
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unsigned num_widgets; |
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int ret; |
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|
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printk(KERN_INFO "UDA134X SoC Audio Codec\n"); |
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|
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switch (pd->model) { |
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case UDA134X_UDA1340: |
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case UDA134X_UDA1341: |
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case UDA134X_UDA1344: |
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case UDA134X_UDA1345: |
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break; |
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default: |
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printk(KERN_ERR "UDA134X SoC codec: " |
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"unsupported model %d\n", |
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pd->model); |
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return -EINVAL; |
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} |
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|
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if (pd->power) |
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pd->power(1); |
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|
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uda134x_reset(component); |
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|
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if (pd->model == UDA134X_UDA1341) { |
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widgets = uda1341_dapm_widgets; |
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num_widgets = ARRAY_SIZE(uda1341_dapm_widgets); |
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} else { |
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widgets = uda1340_dapm_widgets; |
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num_widgets = ARRAY_SIZE(uda1340_dapm_widgets); |
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} |
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ret = snd_soc_dapm_new_controls(dapm, widgets, num_widgets); |
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if (ret) { |
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printk(KERN_ERR "%s failed to register dapm controls: %d", |
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__func__, ret); |
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return ret; |
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} |
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|
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switch (pd->model) { |
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case UDA134X_UDA1340: |
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case UDA134X_UDA1344: |
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ret = snd_soc_add_component_controls(component, uda1340_snd_controls, |
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ARRAY_SIZE(uda1340_snd_controls)); |
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break; |
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case UDA134X_UDA1341: |
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ret = snd_soc_add_component_controls(component, uda1341_snd_controls, |
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ARRAY_SIZE(uda1341_snd_controls)); |
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break; |
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case UDA134X_UDA1345: |
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ret = snd_soc_add_component_controls(component, uda1345_snd_controls, |
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ARRAY_SIZE(uda1345_snd_controls)); |
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break; |
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default: |
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printk(KERN_ERR "%s unknown codec type: %d", |
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__func__, pd->model); |
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return -EINVAL; |
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} |
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|
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if (ret < 0) { |
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printk(KERN_ERR "UDA134X: failed to register controls\n"); |
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return ret; |
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} |
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|
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return 0; |
|
} |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_uda134x = { |
|
.probe = uda134x_soc_probe, |
|
.set_bias_level = uda134x_set_bias_level, |
|
.dapm_widgets = uda134x_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(uda134x_dapm_widgets), |
|
.dapm_routes = uda134x_dapm_routes, |
|
.num_dapm_routes = ARRAY_SIZE(uda134x_dapm_routes), |
|
.suspend_bias_off = 1, |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_config uda134x_regmap_config = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
.max_register = UDA134X_DATA1, |
|
.reg_defaults = uda134x_reg_defaults, |
|
.num_reg_defaults = ARRAY_SIZE(uda134x_reg_defaults), |
|
.cache_type = REGCACHE_RBTREE, |
|
|
|
.reg_write = uda134x_regmap_write, |
|
}; |
|
|
|
static int uda134x_codec_probe(struct platform_device *pdev) |
|
{ |
|
struct uda134x_platform_data *pd = pdev->dev.platform_data; |
|
struct uda134x_priv *uda134x; |
|
int ret; |
|
|
|
if (!pd) { |
|
dev_err(&pdev->dev, "Missing L3 bitbang function\n"); |
|
return -ENODEV; |
|
} |
|
|
|
uda134x = devm_kzalloc(&pdev->dev, sizeof(*uda134x), GFP_KERNEL); |
|
if (!uda134x) |
|
return -ENOMEM; |
|
|
|
uda134x->pd = pd; |
|
platform_set_drvdata(pdev, uda134x); |
|
|
|
if (pd->l3.use_gpios) { |
|
ret = l3_set_gpio_ops(&pdev->dev, &uda134x->pd->l3); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
uda134x->regmap = devm_regmap_init(&pdev->dev, NULL, pd, |
|
&uda134x_regmap_config); |
|
if (IS_ERR(uda134x->regmap)) |
|
return PTR_ERR(uda134x->regmap); |
|
|
|
return devm_snd_soc_register_component(&pdev->dev, |
|
&soc_component_dev_uda134x, &uda134x_dai, 1); |
|
} |
|
|
|
static struct platform_driver uda134x_codec_driver = { |
|
.driver = { |
|
.name = "uda134x-codec", |
|
}, |
|
.probe = uda134x_codec_probe, |
|
}; |
|
|
|
module_platform_driver(uda134x_codec_driver); |
|
|
|
MODULE_DESCRIPTION("UDA134X ALSA soc codec driver"); |
|
MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|