forked from luck/tmp_suning_uos_patched
4aa02396f9
Fixes this warning: sound/soc/codecs/tlv320aic23.c: In function 'tlv320aic23_write': sound/soc/codecs/tlv320aic23.c:104: warning: passing argument 2 of 'codec->hw_write' makes pointer from integer without a cast Replaces i2c smbus write function with standard i2c write function Signed-off-by: Arun KS <arunks@mistralsolutions.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
715 lines
19 KiB
C
715 lines
19 KiB
C
/*
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* ALSA SoC TLV320AIC23 codec driver
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*
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* Author: Arun KS, <arunks@mistralsolutions.com>
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* Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
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*
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* Based on sound/soc/codecs/wm8731.c by 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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* Notes:
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* The AIC23 is a driver for a low power stereo audio
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* codec tlv320aic23
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*
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* The machine layer should disable unsupported inputs/outputs by
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* snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <sound/core.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/tlv.h>
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#include <sound/initval.h>
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#include "tlv320aic23.h"
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#define AIC23_VERSION "0.1"
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struct tlv320aic23_srate_reg_info {
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u32 sample_rate;
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u8 control; /* SR3, SR2, SR1, SR0 and BOSR */
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u8 divider; /* if 0 CLKIN = MCLK, if 1 CLKIN = MCLK/2 */
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};
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/*
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* AIC23 register cache
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*/
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static const u16 tlv320aic23_reg[] = {
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0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */
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0x001A, 0x0004, 0x0007, 0x0001, /* 4 */
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0x0020, 0x0000, 0x0000, 0x0000, /* 8 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 12 */
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};
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/*
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* read tlv320aic23 register cache
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*/
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static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec
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*codec, unsigned int reg)
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{
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u16 *cache = codec->reg_cache;
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if (reg >= ARRAY_SIZE(tlv320aic23_reg))
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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 tlv320aic23 register cache
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*/
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static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec,
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u8 reg, u16 value)
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{
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u16 *cache = codec->reg_cache;
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if (reg >= ARRAY_SIZE(tlv320aic23_reg))
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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 tlv320aic23 register space
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*/
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static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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u8 data[2];
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/* TLV320AIC23 has 7 bit address and 9 bits of data
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* so we need to switch one data bit into reg and rest
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* of data into val
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*/
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if ((reg < 0 || reg > 9) && (reg != 15)) {
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printk(KERN_WARNING "%s Invalid register R%d\n", __func__, reg);
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return -1;
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}
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data[0] = (reg << 1) | (value >> 8 & 0x01);
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data[1] = value & 0xff;
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tlv320aic23_write_reg_cache(codec, reg, value);
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if (codec->hw_write(codec->control_data, data, 2) == 2)
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return 0;
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printk(KERN_ERR "%s cannot write %03x to register R%d\n", __func__,
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value, reg);
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return -EIO;
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}
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static const char *rec_src_text[] = { "Line", "Mic" };
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static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
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static const struct soc_enum rec_src_enum =
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SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
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static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
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SOC_DAPM_ENUM("Input Select", rec_src_enum);
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static const struct soc_enum tlv320aic23_rec_src =
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SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
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static const struct soc_enum tlv320aic23_deemph =
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SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text);
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static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
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static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
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static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
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static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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u16 val, reg;
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val = (ucontrol->value.integer.value[0] & 0x07);
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/* linear conversion to userspace
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* 000 = -6db
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* 001 = -9db
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* 010 = -12db
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* 011 = -18db (Min)
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* 100 = 0db (Max)
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*/
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val = (val >= 4) ? 4 : (3 - val);
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reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0);
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tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6));
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return 0;
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}
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static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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u16 val;
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val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0);
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val = val >> 6;
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val = (val >= 4) ? 4 : (3 - val);
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ucontrol->value.integer.value[0] = val;
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return 0;
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}
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#define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
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SNDRV_CTL_ELEM_ACCESS_READWRITE,\
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.tlv.p = (tlv_array), \
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.info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\
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.put = snd_soc_tlv320aic23_put_volsw, \
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.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
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static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
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SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
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TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
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SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
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SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
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TLV320AIC23_RINVOL, 7, 1, 0),
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SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
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TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
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SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
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SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
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SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG,
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6, 4, 0, sidetone_vol_tlv),
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SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
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};
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/* add non dapm controls */
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static int tlv320aic23_add_controls(struct snd_soc_codec *codec)
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{
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int err, i;
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for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) {
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err = snd_ctl_add(codec->card,
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snd_soc_cnew(&tlv320aic23_snd_controls[i],
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codec, NULL));
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if (err < 0)
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return err;
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}
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return 0;
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}
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/* PGA Mixer controls for Line and Mic switch */
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static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
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SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
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SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
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};
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static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
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SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
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SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
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SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
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&tlv320aic23_rec_src_mux_controls),
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SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
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&tlv320aic23_output_mixer_controls[0],
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ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
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SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
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SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
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SND_SOC_DAPM_OUTPUT("LHPOUT"),
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SND_SOC_DAPM_OUTPUT("RHPOUT"),
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SND_SOC_DAPM_OUTPUT("LOUT"),
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SND_SOC_DAPM_OUTPUT("ROUT"),
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SND_SOC_DAPM_INPUT("LLINEIN"),
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SND_SOC_DAPM_INPUT("RLINEIN"),
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SND_SOC_DAPM_INPUT("MICIN"),
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};
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static const struct snd_soc_dapm_route intercon[] = {
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/* Output Mixer */
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{"Output Mixer", "Line Bypass Switch", "Line Input"},
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{"Output Mixer", "Playback Switch", "DAC"},
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{"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
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/* Outputs */
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{"RHPOUT", NULL, "Output Mixer"},
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{"LHPOUT", NULL, "Output Mixer"},
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{"LOUT", NULL, "Output Mixer"},
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{"ROUT", NULL, "Output Mixer"},
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/* Inputs */
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{"Line Input", "NULL", "LLINEIN"},
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{"Line Input", "NULL", "RLINEIN"},
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{"Mic Input", "NULL", "MICIN"},
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/* input mux */
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{"Capture Source", "Line", "Line Input"},
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{"Capture Source", "Mic", "Mic Input"},
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{"ADC", NULL, "Capture Source"},
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};
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/* tlv320aic23 related */
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static const struct tlv320aic23_srate_reg_info srate_reg_info[] = {
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{4000, 0x06, 1}, /* 4000 */
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{8000, 0x06, 0}, /* 8000 */
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{16000, 0x0C, 1}, /* 16000 */
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{22050, 0x11, 1}, /* 22050 */
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{24000, 0x00, 1}, /* 24000 */
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{32000, 0x0C, 0}, /* 32000 */
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{44100, 0x11, 0}, /* 44100 */
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{48000, 0x00, 0}, /* 48000 */
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{88200, 0x1F, 0}, /* 88200 */
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{96000, 0x0E, 0}, /* 96000 */
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};
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static int tlv320aic23_add_widgets(struct snd_soc_codec *codec)
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{
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snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
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ARRAY_SIZE(tlv320aic23_dapm_widgets));
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/* set up audio path interconnects */
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snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
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snd_soc_dapm_new_widgets(codec);
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return 0;
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}
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static int tlv320aic23_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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u16 iface_reg, data;
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u8 count = 0;
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iface_reg =
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tlv320aic23_read_reg_cache(codec,
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TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
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/* Search for the right sample rate */
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/* Verify what happens if the rate is not supported
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* now it goes to 96Khz */
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while ((srate_reg_info[count].sample_rate != params_rate(params)) &&
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(count < ARRAY_SIZE(srate_reg_info))) {
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count++;
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}
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data = (srate_reg_info[count].divider << TLV320AIC23_CLKIN_SHIFT) |
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(srate_reg_info[count]. control << TLV320AIC23_BOSR_SHIFT) |
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TLV320AIC23_USB_CLK_ON;
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tlv320aic23_write(codec, TLV320AIC23_SRATE, data);
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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break;
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case SNDRV_PCM_FORMAT_S20_3LE:
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iface_reg |= (0x01 << 2);
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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iface_reg |= (0x02 << 2);
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break;
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case SNDRV_PCM_FORMAT_S32_LE:
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iface_reg |= (0x03 << 2);
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break;
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}
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tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
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return 0;
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}
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static int tlv320aic23_pcm_prepare(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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/* set active */
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tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
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return 0;
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}
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static void tlv320aic23_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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/* deactivate */
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if (!codec->active) {
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udelay(50);
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tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
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}
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}
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static int tlv320aic23_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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u16 reg;
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reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
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if (mute)
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reg |= TLV320AIC23_DACM_MUTE;
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else
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reg &= ~TLV320AIC23_DACM_MUTE;
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tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);
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return 0;
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}
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static int tlv320aic23_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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u16 iface_reg;
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iface_reg =
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tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
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/* set master/slave audio interface */
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBM_CFM:
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iface_reg |= TLV320AIC23_MS_MASTER;
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break;
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case SND_SOC_DAIFMT_CBS_CFS:
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break;
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default:
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return -EINVAL;
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}
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/* interface format */
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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iface_reg |= TLV320AIC23_FOR_I2S;
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break;
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case SND_SOC_DAIFMT_DSP_A:
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iface_reg |= TLV320AIC23_FOR_DSP;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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iface_reg |= TLV320AIC23_FOR_LJUST;
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break;
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default:
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return -EINVAL;
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}
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tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
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return 0;
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}
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static int tlv320aic23_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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switch (freq) {
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case 12000000:
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return 0;
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}
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return -EINVAL;
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}
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static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
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enum snd_soc_bias_level level)
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{
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u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;
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switch (level) {
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case SND_SOC_BIAS_ON:
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/* vref/mid, osc on, dac unmute */
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tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
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break;
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case SND_SOC_BIAS_PREPARE:
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break;
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case SND_SOC_BIAS_STANDBY:
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/* everything off except vref/vmid, */
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tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040);
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break;
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case SND_SOC_BIAS_OFF:
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/* everything off, dac mute, inactive */
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tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
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tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
|
|
break;
|
|
}
|
|
codec->bias_level = level;
|
|
return 0;
|
|
}
|
|
|
|
#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
|
|
#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
|
|
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
struct snd_soc_dai tlv320aic23_dai = {
|
|
.name = "tlv320aic23",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = AIC23_RATES,
|
|
.formats = AIC23_FORMATS,},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = AIC23_RATES,
|
|
.formats = AIC23_FORMATS,},
|
|
.ops = {
|
|
.prepare = tlv320aic23_pcm_prepare,
|
|
.hw_params = tlv320aic23_hw_params,
|
|
.shutdown = tlv320aic23_shutdown,
|
|
},
|
|
.dai_ops = {
|
|
.digital_mute = tlv320aic23_mute,
|
|
.set_fmt = tlv320aic23_set_dai_fmt,
|
|
.set_sysclk = tlv320aic23_set_dai_sysclk,
|
|
}
|
|
};
|
|
EXPORT_SYMBOL_GPL(tlv320aic23_dai);
|
|
|
|
static int tlv320aic23_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;
|
|
|
|
tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
|
|
tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tlv320aic23_resume(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
int i;
|
|
u16 reg;
|
|
|
|
/* Sync reg_cache with the hardware */
|
|
for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) {
|
|
u16 val = tlv320aic23_read_reg_cache(codec, reg);
|
|
tlv320aic23_write(codec, reg, val);
|
|
}
|
|
|
|
tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* initialise the AIC23 driver
|
|
* register the mixer and dsp interfaces with the kernel
|
|
*/
|
|
static int tlv320aic23_init(struct snd_soc_device *socdev)
|
|
{
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
int ret = 0;
|
|
u16 reg;
|
|
|
|
codec->name = "tlv320aic23";
|
|
codec->owner = THIS_MODULE;
|
|
codec->read = tlv320aic23_read_reg_cache;
|
|
codec->write = tlv320aic23_write;
|
|
codec->set_bias_level = tlv320aic23_set_bias_level;
|
|
codec->dai = &tlv320aic23_dai;
|
|
codec->num_dai = 1;
|
|
codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
|
|
codec->reg_cache =
|
|
kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
|
|
if (codec->reg_cache == NULL)
|
|
return -ENOMEM;
|
|
|
|
/* Reset codec */
|
|
tlv320aic23_write(codec, TLV320AIC23_RESET, 0);
|
|
|
|
/* register pcms */
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
|
|
goto pcm_err;
|
|
}
|
|
|
|
/* power on device */
|
|
tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
|
|
|
|
/* Unmute input */
|
|
reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
|
|
tlv320aic23_write(codec, TLV320AIC23_LINVOL,
|
|
(reg & (~TLV320AIC23_LIM_MUTED)) |
|
|
(TLV320AIC23_LRS_ENABLED));
|
|
|
|
reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
|
|
tlv320aic23_write(codec, TLV320AIC23_RINVOL,
|
|
(reg & (~TLV320AIC23_LIM_MUTED)) |
|
|
TLV320AIC23_LRS_ENABLED);
|
|
|
|
reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
|
|
tlv320aic23_write(codec, TLV320AIC23_ANLG,
|
|
(reg) & (~TLV320AIC23_BYPASS_ON) &
|
|
(~TLV320AIC23_MICM_MUTED));
|
|
|
|
/* Default output volume */
|
|
tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
|
|
TLV320AIC23_DEFAULT_OUT_VOL &
|
|
TLV320AIC23_OUT_VOL_MASK);
|
|
tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
|
|
TLV320AIC23_DEFAULT_OUT_VOL &
|
|
TLV320AIC23_OUT_VOL_MASK);
|
|
|
|
tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
|
|
|
|
tlv320aic23_add_controls(codec);
|
|
tlv320aic23_add_widgets(codec);
|
|
ret = snd_soc_register_card(socdev);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tlv320aic23: failed to register card\n");
|
|
goto card_err;
|
|
}
|
|
|
|
return ret;
|
|
|
|
card_err:
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
pcm_err:
|
|
kfree(codec->reg_cache);
|
|
return ret;
|
|
}
|
|
static struct snd_soc_device *tlv320aic23_socdev;
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
/*
|
|
* If the i2c layer weren't so broken, we could pass this kind of data
|
|
* around
|
|
*/
|
|
static int tlv320aic23_codec_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *i2c_id)
|
|
{
|
|
struct snd_soc_device *socdev = tlv320aic23_socdev;
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
int ret;
|
|
|
|
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -EINVAL;
|
|
|
|
i2c_set_clientdata(i2c, codec);
|
|
codec->control_data = i2c;
|
|
|
|
ret = tlv320aic23_init(socdev);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
|
|
goto err;
|
|
}
|
|
return ret;
|
|
|
|
err:
|
|
kfree(codec);
|
|
kfree(i2c);
|
|
return ret;
|
|
}
|
|
static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
|
|
{
|
|
put_device(&i2c->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id tlv320aic23_id[] = {
|
|
{"tlv320aic23", 0},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
|
|
|
|
static struct i2c_driver tlv320aic23_i2c_driver = {
|
|
.driver = {
|
|
.name = "tlv320aic23",
|
|
},
|
|
.probe = tlv320aic23_codec_probe,
|
|
.remove = __exit_p(tlv320aic23_i2c_remove),
|
|
.id_table = tlv320aic23_id,
|
|
};
|
|
|
|
#endif
|
|
|
|
static int tlv320aic23_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec;
|
|
int ret = 0;
|
|
|
|
printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);
|
|
|
|
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
|
|
if (codec == NULL)
|
|
return -ENOMEM;
|
|
|
|
socdev->codec = codec;
|
|
mutex_init(&codec->mutex);
|
|
INIT_LIST_HEAD(&codec->dapm_widgets);
|
|
INIT_LIST_HEAD(&codec->dapm_paths);
|
|
|
|
tlv320aic23_socdev = socdev;
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
codec->hw_write = (hw_write_t) i2c_master_send;
|
|
codec->hw_read = NULL;
|
|
ret = i2c_add_driver(&tlv320aic23_i2c_driver);
|
|
if (ret != 0)
|
|
printk(KERN_ERR "can't add i2c driver");
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static int tlv320aic23_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
|
|
if (codec->control_data)
|
|
tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
i2c_del_driver(&tlv320aic23_i2c_driver);
|
|
#endif
|
|
kfree(codec->reg_cache);
|
|
kfree(codec);
|
|
|
|
return 0;
|
|
}
|
|
struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
|
|
.probe = tlv320aic23_probe,
|
|
.remove = tlv320aic23_remove,
|
|
.suspend = tlv320aic23_suspend,
|
|
.resume = tlv320aic23_resume,
|
|
};
|
|
EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);
|
|
|
|
MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
|
|
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
|
|
MODULE_LICENSE("GPL");
|