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SmartAudio/lichee/linux-4.9/sound/soc/sunxi/sunxi_ahub_daudio.c

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/*
* sound\soc\sunxi\sunxi_ahub_daudio.c
* (C) Copyright 2015-2017
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Wolfgang huang <huangjinhui@allwinnertechtech.com>
*
* some simple description for this code
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/regulator/consumer.h>
#include <linux/pinctrl/consumer.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/pm.h>
#include <linux/of_gpio.h>
#include <linux/workqueue.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "sunxi_ahub.h"
#include "sunxi-pcm.h"
#define DRV_NAME "sunxi-ahub-daudio"
struct sunxi_ahub_daudio_priv {
struct device *dev;
struct regmap *regmap;
struct clk *pllclk;
struct clk *moduleclk;
struct pinctrl *pinctrl;
struct pinctrl_state *pinstate;
struct pinctrl_state *pinstate_sleep;
struct snd_soc_dai_driver *cpudai;
char cpudai_name[20];
struct mutex mutex;
int used_cnt;
unsigned int pinconfig;
unsigned int frame_type;
unsigned int daudio_master;
unsigned int pcm_lrck_period;
unsigned int slot_width_select;
unsigned int audio_format;
unsigned int signal_inversion;
unsigned int tdm_config;
unsigned int tdm_num;
unsigned int mclk_div;
};
static int sunxi_ahub_daudio_global_enable(struct sunxi_ahub_daudio_priv
*sunxi_ahub_daudio, int enable, unsigned int id)
{
if (enable) {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_SDO0_EN), (1<<I2S_CTL_SDO0_EN));
/* Special processing for HDMI hub playback module */
if (sunxi_ahub_daudio->tdm_num == SUNXI_AHUB_HDMI_ID) {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO1_EN), (1<<I2S_CTL_SDO1_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO2_EN), (1<<I2S_CTL_SDO2_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO3_EN), (1<<I2S_CTL_SDO3_EN));
}
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_GEN), (1<<I2S_CTL_GEN));
} else {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_GEN), (0<<I2S_CTL_GEN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_SDO0_EN), (0<<I2S_CTL_SDO0_EN));
/* Special processing for HDMI hub playback module */
if (sunxi_ahub_daudio->tdm_num == SUNXI_AHUB_HDMI_ID) {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO1_EN), (0<<I2S_CTL_SDO1_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO2_EN), (0<<I2S_CTL_SDO2_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(sunxi_ahub_daudio->tdm_num),
(1<<I2S_CTL_SDO3_EN), (0<<I2S_CTL_SDO3_EN));
}
}
return 0;
}
static int sunxi_ahub_daudio_mclk_setting(struct sunxi_ahub_daudio_priv
*sunxi_ahub_daudio, unsigned int id)
{
unsigned int mclk_div;
if (sunxi_ahub_daudio->mclk_div) {
switch (sunxi_ahub_daudio->mclk_div) {
case 1:
mclk_div = 1;
break;
case 2:
mclk_div = 2;
break;
case 4:
mclk_div = 3;
break;
case 6:
mclk_div = 4;
break;
case 8:
mclk_div = 5;
break;
case 12:
mclk_div = 6;
break;
case 16:
mclk_div = 7;
break;
case 24:
mclk_div = 8;
break;
case 32:
mclk_div = 9;
break;
case 48:
mclk_div = 10;
break;
case 64:
mclk_div = 11;
break;
case 96:
mclk_div = 12;
break;
case 128:
mclk_div = 13;
break;
case 176:
mclk_div = 14;
break;
case 192:
mclk_div = 15;
break;
default:
dev_err(sunxi_ahub_daudio->dev,
"unsupport mclk_div\n");
return -EINVAL;
}
/* setting Mclk as external codec input clk */
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CLKD(id),
(0xf<<I2S_CLKD_MCLKDIV),
(mclk_div<<I2S_CLKD_MCLKDIV));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CLKD(id),
(0x1<<I2S_CLKD_MCLK), (1<<I2S_CLKD_MCLK));
} else {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CLKD(id),
(0x1<<I2S_CLKD_MCLK), (0<<I2S_CLKD_MCLK));
}
return 0;
}
static int sunxi_ahub_daudio_init_fmt(struct sunxi_ahub_daudio_priv
*sunxi_ahub_daudio, unsigned int fmt, unsigned int id)
{
unsigned int offset, mode;
unsigned int lrck_polarity = 0;
unsigned int brck_polarity;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_CLK_OUT), (0<<I2S_CTL_CLK_OUT));
break;
case SND_SOC_DAIFMT_CBS_CFS:
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CTL(id),
(1<<I2S_CTL_CLK_OUT), (1<<I2S_CTL_CLK_OUT));
break;
default:
dev_err(sunxi_ahub_daudio->dev, "unknown maser/slave format\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
offset = 1;
mode = 1;
break;
case SND_SOC_DAIFMT_RIGHT_J:
offset = 0;
mode = 2;
break;
case SND_SOC_DAIFMT_LEFT_J:
offset = 0;
mode = 1;
break;
case SND_SOC_DAIFMT_DSP_A:
offset = 1;
mode = 0;
break;
case SND_SOC_DAIFMT_DSP_B:
offset = 0;
mode = 0;
break;
default:
dev_err(sunxi_ahub_daudio->dev, "format setting failed\n");
return -EINVAL;
}
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_CTL(id),
(0x3<<I2S_CTL_MODE), (mode<<I2S_CTL_MODE));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT0(id),
(0x1<<I2S_OUT_OFFSET), (offset<<I2S_OUT_OFFSET));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT1(id),
(0x1<<I2S_OUT_OFFSET), (offset<<I2S_OUT_OFFSET));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT2(id),
(0x1<<I2S_OUT_OFFSET), (offset<<I2S_OUT_OFFSET));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT3(id),
(0x1<<I2S_OUT_OFFSET), (offset<<I2S_OUT_OFFSET));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_IN_SLOT(id),
(0x1<<I2S_IN_OFFSET), (offset<<I2S_IN_OFFSET));
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_RIGHT_J:
case SND_SOC_DAIFMT_LEFT_J:
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
lrck_polarity = 0;
brck_polarity = 0;
break;
case SND_SOC_DAIFMT_NB_IF:
lrck_polarity = 1;
brck_polarity = 0;
break;
case SND_SOC_DAIFMT_IB_NF:
lrck_polarity = 0;
brck_polarity = 1;
break;
case SND_SOC_DAIFMT_IB_IF:
lrck_polarity = 1;
brck_polarity = 1;
break;
default:
dev_err(sunxi_ahub_daudio->dev,
"invert clk setting failed\n");
return -EINVAL;
}
break;
case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
/* frame inversion not valid for DSP modes */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
lrck_polarity = 0;
brck_polarity = 0;
break;
case SND_SOC_DAIFMT_IB_NF:
lrck_polarity = 0;
brck_polarity = 1;
break;
default:
dev_err(sunxi_ahub_daudio->dev, "dai fmt invalid\n");
return -EINVAL;
}
break;
default:
dev_err(sunxi_ahub_daudio->dev, "format setting failed\n");
return -EINVAL;
}
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT0(id),
(1<<I2S_FMT0_LRCK_POLARITY),
(lrck_polarity<<I2S_FMT0_LRCK_POLARITY));
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT0(id),
(1<<I2S_FMT0_BCLK_POLARITY),
(brck_polarity<<I2S_FMT0_BCLK_POLARITY));
return 0;
}
static int sunxi_ahub_daudio_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
sunxi_ahub_daudio_init_fmt(sunxi_ahub_daudio, fmt,
(sunxi_ahub_daudio->tdm_num));
return 0;
}
static int sunxi_ahub_daudio_init(
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio, int id)
{
int ret;
sunxi_ahub_daudio_global_enable(sunxi_ahub_daudio, 1, id);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH0MAP0(id), 0x76543210);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH0MAP1(id), 0xFEDCBA98);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH1MAP0(id), 0x76543210);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH1MAP1(id), 0xFEDCBA98);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH2MAP0(id), 0x76543210);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH2MAP1(id), 0xFEDCBA98);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH3MAP0(id), 0x76543210);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH3MAP1(id), 0xFEDCBA98);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_IN_CHMAP0(id), 0x76543210);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_IN_CHMAP1(id), 0xFEDCBA98);
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT0(id),
(1<<I2S_FMT0_LRCK_WIDTH),
(sunxi_ahub_daudio->frame_type<<I2S_FMT0_LRCK_WIDTH));
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT0(id),
(0x1ff<<I2S_FMT0_LRCK_PERIOD),
((sunxi_ahub_daudio->pcm_lrck_period-1)<<I2S_FMT0_LRCK_PERIOD));
regmap_update_bits(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT0(id),
(0x7<<I2S_FMT0_SW),
(((sunxi_ahub_daudio->slot_width_select>>2) - 1)<<I2S_FMT0_SW));
/*
* MSB on the transmit format, always be first.
* default using Linear-PCM, without no companding.
* A-law<Eourpean standard> or U-law<US-Japan> not working ok.
*/
regmap_write(sunxi_ahub_daudio->regmap, SUNXI_AHUB_I2S_FMT1(id), 0x30);
if (sunxi_ahub_daudio->pinconfig) {
sunxi_ahub_daudio->pinctrl =
devm_pinctrl_get(sunxi_ahub_daudio->dev);
if (IS_ERR_OR_NULL(sunxi_ahub_daudio->pinctrl)) {
dev_err(sunxi_ahub_daudio->dev, "pinctrl get failed\n");
return -ENODEV;
}
}
if (sunxi_ahub_daudio->pinconfig) {
sunxi_ahub_daudio->pinstate =
pinctrl_lookup_state(sunxi_ahub_daudio->pinctrl,
"default");
if (IS_ERR_OR_NULL(sunxi_ahub_daudio->pinstate)) {
dev_err(sunxi_ahub_daudio->dev,
"pinctrl default state get failed\n");
return -ENODEV;
}
sunxi_ahub_daudio->pinstate_sleep =
pinctrl_lookup_state(sunxi_ahub_daudio->pinctrl,
"sleep");
if (IS_ERR_OR_NULL(sunxi_ahub_daudio->pinstate_sleep)) {
dev_err(sunxi_ahub_daudio->dev,
"pinctrl sleep state get failed\n");
return -ENODEV;
}
ret = pinctrl_select_state(sunxi_ahub_daudio->pinctrl,
sunxi_ahub_daudio->pinstate);
if (ret) {
dev_warn(sunxi_ahub_daudio->dev,
"select default state failed\n");
return -EBUSY;
}
}
/* default setting the daudio fmt */
sunxi_ahub_daudio_init_fmt(sunxi_ahub_daudio,
(sunxi_ahub_daudio->audio_format
| (sunxi_ahub_daudio->signal_inversion<<8)
| (sunxi_ahub_daudio->daudio_master<<12)), id);
sunxi_ahub_daudio_mclk_setting(sunxi_ahub_daudio, id);
return 0;
}
static int sunxi_ahub_daudio_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sunxi_hdmi_priv *sunxi_hdmi = snd_soc_card_get_drvdata(card);
/* default setting the daudio fmt */
sunxi_ahub_daudio_init_fmt(sunxi_ahub_daudio,
(sunxi_ahub_daudio->audio_format
| (sunxi_ahub_daudio->signal_inversion<<8)
| (sunxi_ahub_daudio->daudio_master<<12)),
sunxi_ahub_daudio->tdm_num);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
/*
* Special procesing for hdmi, HDMI card name is
* "sndhdmi" or sndhdmiraw. if card not HDMI,
* strstr func just return NULL, jump to right section.
* Not HDMI card, sunxi_hdmi maybe a NULL pointer.
*/
if (sunxi_ahub_daudio->tdm_num == SUNXI_AHUB_HDMI_ID) {
if (sunxi_hdmi->hdmi_format > 1)
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_FMT0(
sunxi_ahub_daudio->tdm_num),
(7<<I2S_FMT0_SR), (5<<I2S_FMT0_SR));
else
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_FMT0(
sunxi_ahub_daudio->tdm_num),
(7<<I2S_FMT0_SR), (3<<I2S_FMT0_SR));
} else {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_FMT0(sunxi_ahub_daudio->tdm_num),
(7<<I2S_FMT0_SR), (3<<I2S_FMT0_SR));
}
break;
case SNDRV_PCM_FORMAT_S24_LE:
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_FMT0(sunxi_ahub_daudio->tdm_num),
(7<<I2S_FMT0_SR), (5<<I2S_FMT0_SR));
break;
case SNDRV_PCM_FORMAT_S32_LE:
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_FMT0(sunxi_ahub_daudio->tdm_num),
(7<<I2S_FMT0_SR), (7<<I2S_FMT0_SR));
break;
default:
dev_err(sunxi_ahub_daudio->dev, "unrecognized format\n");
return -EINVAL;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CHCFG(sunxi_ahub_daudio->tdm_num),
(0xf<<I2S_CHCFG_TX_CHANNUM),
((params_channels(params)-1)<<I2S_CHCFG_TX_CHANNUM));
if (sunxi_ahub_daudio->tdm_num == SUNXI_AHUB_HDMI_ID) {
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH0MAP0(
sunxi_ahub_daudio->tdm_num),
0x10);
if (sunxi_hdmi->hdmi_format > 1) {
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH1MAP0(
sunxi_ahub_daudio->tdm_num),
0x32);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH2MAP0(
sunxi_ahub_daudio->tdm_num),
0x54);
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH3MAP0(
sunxi_ahub_daudio->tdm_num),
0x76);
} else {
if (params_channels(params) > 2) {
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH1MAP0(
sunxi_ahub_daudio->tdm_num),
0x23);
/* only 5.1 & 7.1 */
if (params_channels(params) > 4) {
if (params_channels(params) == 6)
/* 5.1 hit this */
regmap_write(
sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH2MAP0(
sunxi_ahub_daudio->tdm_num),
0x54);
else
/* 7.1 hit this */
regmap_write(
sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH2MAP0(
sunxi_ahub_daudio->tdm_num),
0x76);
}
if (params_channels(params) > 6)
regmap_write(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_CH3MAP0(
sunxi_ahub_daudio->tdm_num),
0x54);
}
}
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT0(
sunxi_ahub_daudio->tdm_num),
(0x0f<<I2S_OUT_SLOT_NUM),
(0x01<<I2S_OUT_SLOT_NUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT0(
sunxi_ahub_daudio->tdm_num),
(0xffff<<I2S_OUT_SLOT_EN),
(0x03<<I2S_OUT_SLOT_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT1(
sunxi_ahub_daudio->tdm_num),
(0x0f<<I2S_OUT_SLOT_NUM),
(0x01<<I2S_OUT_SLOT_NUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT1(
sunxi_ahub_daudio->tdm_num),
(0xffff<<I2S_OUT_SLOT_EN),
(0x03<<I2S_OUT_SLOT_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT2(
sunxi_ahub_daudio->tdm_num),
(0x0f<<I2S_OUT_SLOT_NUM),
(0x01<<I2S_OUT_SLOT_NUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT2(
sunxi_ahub_daudio->tdm_num),
(0xffff<<I2S_OUT_SLOT_EN),
(0x03<<I2S_OUT_SLOT_EN));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT3(
sunxi_ahub_daudio->tdm_num),
(0x0f<<I2S_OUT_SLOT_NUM),
(0x01<<I2S_OUT_SLOT_NUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT3(
sunxi_ahub_daudio->tdm_num),
(0xffff<<I2S_OUT_SLOT_EN),
(0x03<<I2S_OUT_SLOT_EN));
} else {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT0(
sunxi_ahub_daudio->tdm_num),
(0x0f<<I2S_OUT_SLOT_NUM),
((params_channels(params)-1)<<I2S_OUT_SLOT_NUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_OUT_SLOT0(
sunxi_ahub_daudio->tdm_num),
(0xffff<<I2S_OUT_SLOT_EN),
(((1<<params_channels(params))-1)<<I2S_OUT_SLOT_EN));
}
} else {
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CHCFG(sunxi_ahub_daudio->tdm_num),
(0xf<<I2S_CHCFG_RX_CHANNUM),
((params_channels(params)-1)<<I2S_CHCFG_RX_CHANNUM));
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_IN_SLOT(sunxi_ahub_daudio->tdm_num),
(0xf<<I2S_IN_SLOT_NUM),
((params_channels(params)-1)<<I2S_IN_SLOT_NUM));
}
return 0;
}
static int sunxi_ahub_daudio_set_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
if (clk_set_rate(sunxi_ahub_daudio->pllclk, freq)) {
dev_err(sunxi_ahub_daudio->dev, "set pllclk rate failed\n");
return -EBUSY;
}
return 0;
}
static int sunxi_ahub_daudio_set_clkdiv(struct snd_soc_dai *dai,
int clk_id, int clk_div)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
unsigned int bclk_div, div_ratio;
if (sunxi_ahub_daudio->tdm_config)
/* I2S/TDM two channel mode */
div_ratio = clk_div / (sunxi_ahub_daudio->pcm_lrck_period * 2);
else
/* PCM mode */
div_ratio = clk_div / sunxi_ahub_daudio->pcm_lrck_period;
switch (div_ratio) {
case 1:
bclk_div = 1;
break;
case 2:
bclk_div = 2;
break;
case 4:
bclk_div = 3;
break;
case 6:
bclk_div = 4;
break;
case 8:
bclk_div = 5;
break;
case 12:
bclk_div = 6;
break;
case 16:
bclk_div = 7;
break;
case 24:
bclk_div = 8;
break;
case 32:
bclk_div = 9;
break;
case 48:
bclk_div = 10;
break;
case 64:
bclk_div = 11;
break;
case 96:
bclk_div = 12;
break;
case 128:
bclk_div = 13;
break;
case 176:
bclk_div = 14;
break;
case 192:
bclk_div = 15;
break;
default:
dev_err(sunxi_ahub_daudio->dev, "unsupport clk_div\n");
return -EINVAL;
}
/* setting bclk to driver external codec bit clk */
regmap_update_bits(sunxi_ahub_daudio->regmap,
SUNXI_AHUB_I2S_CLKD(sunxi_ahub_daudio->tdm_num),
(0xf<<I2S_CLKD_BCLKDIV), (bclk_div<<I2S_CLKD_BCLKDIV));
return 0;
}
static int sunxi_ahub_daudio_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
/* HMID module, we just keep this clk */
break;
default:
return -EINVAL;
}
return 0;
}
static int sunxi_ahub_daudio_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
return 0;
}
static void sunxi_ahub_daudio_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
}
static struct snd_soc_dai_ops sunxi_ahub_cpu_dai_ops = {
.hw_params = sunxi_ahub_daudio_hw_params,
.set_sysclk = sunxi_ahub_daudio_set_sysclk,
.set_clkdiv = sunxi_ahub_daudio_set_clkdiv,
.set_fmt = sunxi_ahub_daudio_set_fmt,
.startup = sunxi_ahub_daudio_startup,
.trigger = sunxi_ahub_daudio_trigger,
.shutdown = sunxi_ahub_daudio_shutdown,
};
static int sunxi_ahub_daudio_probe(struct snd_soc_dai *dai)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
mutex_init(&sunxi_ahub_daudio->mutex);
sunxi_ahub_daudio_init(sunxi_ahub_daudio, (sunxi_ahub_daudio->tdm_num));
return 0;
}
static int sunxi_ahub_daudio_remove(struct snd_soc_dai *dai)
{
return 0;
}
static int sunxi_ahub_daudio_suspend(struct snd_soc_dai *dai)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
int ret;
pr_debug("Enter %s\n", __func__);
clk_disable_unprepare(sunxi_ahub_daudio->moduleclk);
clk_disable_unprepare(sunxi_ahub_daudio->pllclk);
if (sunxi_ahub_daudio->pinconfig) {
ret = pinctrl_select_state(sunxi_ahub_daudio->pinctrl,
sunxi_ahub_daudio->pinstate_sleep);
if (ret) {
dev_warn(sunxi_ahub_daudio->dev,
"select i2s0-default state failed\n");
return -EBUSY;
}
}
/* Global disable I2S/TDM module */
sunxi_ahub_daudio_global_enable(sunxi_ahub_daudio, 0,
(sunxi_ahub_daudio->tdm_num));
pr_debug("End %s\n", __func__);
return 0;
}
static int sunxi_ahub_daudio_resume(struct snd_soc_dai *dai)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
snd_soc_dai_get_drvdata(dai);
pr_debug("Enter %s\n", __func__);
if (clk_prepare_enable(sunxi_ahub_daudio->pllclk)) {
dev_err(sunxi_ahub_daudio->dev, "pllclk resume failed\n");
return -EBUSY;
}
if (clk_prepare_enable(sunxi_ahub_daudio->moduleclk)) {
dev_err(sunxi_ahub_daudio->dev, "moduleclk resume failed\n");
return -EBUSY;
}
sunxi_ahub_daudio_init(sunxi_ahub_daudio, sunxi_ahub_daudio->tdm_num);
pr_debug("End %s\n", __func__);
return 0;
}
static struct snd_soc_dai_driver sunxi_ahub_daudio_mod = {
.probe = sunxi_ahub_daudio_probe,
.remove = sunxi_ahub_daudio_remove,
.suspend = sunxi_ahub_daudio_suspend,
.resume = sunxi_ahub_daudio_resume,
.playback = {
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATE_KNOT,
.formats = SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
| SNDRV_PCM_FMTBIT_S32_LE,
},
.capture = {
.channels_min = 1,
.channels_max = 16,
.rates = SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATE_KNOT,
.formats = SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S24_LE
| SNDRV_PCM_FMTBIT_S32_LE,
},
.ops = &sunxi_ahub_cpu_dai_ops,
};
static const struct snd_soc_component_driver sunxi_ahub_daudio_component = {
.name = DRV_NAME,
};
static int sunxi_ahub_daudio_dev_probe(struct platform_device *pdev)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio;
struct device_node *np = pdev->dev.of_node;
unsigned int temp_val;
int ret;
sunxi_ahub_daudio = devm_kzalloc(&pdev->dev,
sizeof(struct sunxi_ahub_daudio_priv), GFP_KERNEL);
if (!sunxi_ahub_daudio) {
ret = -ENOMEM;
goto err_node_put;
}
dev_set_drvdata(&pdev->dev, sunxi_ahub_daudio);
sunxi_ahub_daudio->dev = &pdev->dev;
sunxi_ahub_daudio->cpudai = devm_kzalloc(&pdev->dev,
sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
if (!sunxi_ahub_daudio->cpudai) {
ret = -ENOMEM;
goto err_devm_kfree;
} else {
memcpy(sunxi_ahub_daudio->cpudai, &sunxi_ahub_daudio_mod,
sizeof(struct snd_soc_dai_driver));
}
sunxi_ahub_daudio->pllclk = of_clk_get(np, 0);
if (IS_ERR_OR_NULL(sunxi_ahub_daudio->pllclk)) {
dev_err(&pdev->dev, "pllclk get failed\n");
ret = PTR_ERR(sunxi_ahub_daudio->pllclk);
goto err_cpudai_kfree;
}
sunxi_ahub_daudio->moduleclk = of_clk_get(np, 1);
if (IS_ERR_OR_NULL(sunxi_ahub_daudio->moduleclk)) {
dev_err(&pdev->dev, "moduleclk get failed\n");
ret = PTR_ERR(sunxi_ahub_daudio->moduleclk);
goto err_pllclk_put;
}
if (clk_set_parent(sunxi_ahub_daudio->moduleclk,
sunxi_ahub_daudio->pllclk)) {
dev_err(&pdev->dev, "set parent of moduleclk to pllclk fail\n");
ret = -EBUSY;
goto err_moduleclk_put;
}
clk_prepare_enable(sunxi_ahub_daudio->pllclk);
clk_prepare_enable(sunxi_ahub_daudio->moduleclk);
ret = of_property_read_u32(np, "tdm_num", &temp_val);
if (ret < 0) {
dev_err(&pdev->dev, "tdm_num configuration invalid\n");
goto err_moduleclk_put;
} else {
sunxi_ahub_daudio->tdm_num = temp_val;
}
ret = of_property_read_u32(np, "pinconfig", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "pinconfig configuration invalid\n");
sunxi_ahub_daudio->pinconfig = 0;
} else {
sunxi_ahub_daudio->pinconfig = temp_val;
}
ret = of_property_read_u32(np, "frametype", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "frametype configuration invalid\n");
sunxi_ahub_daudio->frame_type = 0;
} else {
sunxi_ahub_daudio->frame_type = temp_val;
}
ret = of_property_read_u32(np, "daudio_master", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "daudio_master configuration invalid\n");
sunxi_ahub_daudio->daudio_master = 4;
} else {
sunxi_ahub_daudio->daudio_master = temp_val;
}
ret = of_property_read_u32(np, "pcm_lrck_period", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "pcm_lrck_period configuration invalid\n");
sunxi_ahub_daudio->pcm_lrck_period = 0;
} else {
sunxi_ahub_daudio->pcm_lrck_period = temp_val;
}
ret = of_property_read_u32(np, "slot_width_select", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "slot_width_select configuration inval\n");
sunxi_ahub_daudio->slot_width_select = 0;
} else {
sunxi_ahub_daudio->slot_width_select = temp_val;
}
ret = of_property_read_u32(np, "audio_format", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "audio_format configuration invalid\n");
sunxi_ahub_daudio->audio_format = 1;
} else {
sunxi_ahub_daudio->audio_format = temp_val;
}
ret = of_property_read_u32(np, "signal_inversion", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "signal_inversion configuration inval\n");
sunxi_ahub_daudio->signal_inversion = 1;
} else {
sunxi_ahub_daudio->signal_inversion = temp_val;
}
ret = of_property_read_u32(np, "tdm_config", &temp_val);
if (ret < 0) {
dev_warn(&pdev->dev, "tdm_config configuration invalid\n");
sunxi_ahub_daudio->tdm_config = 1;
} else {
sunxi_ahub_daudio->tdm_config = temp_val;
}
ret = of_property_read_u32(np, "mclk_div", &temp_val);
if (ret < 0)
sunxi_ahub_daudio->mclk_div = 0;
else
sunxi_ahub_daudio->mclk_div = temp_val;
sunxi_ahub_daudio->regmap = sunxi_ahub_regmap_init(pdev);
if (!sunxi_ahub_daudio->regmap) {
dev_err(&pdev->dev, "regmap not init ok\n");
ret = -ENOMEM;
goto err_moduleclk_put;
}
/* diff handle for dais even we use tdm_num as dai id ----->roy */
sunxi_ahub_daudio->cpudai->id = sunxi_ahub_daudio->tdm_num;
sprintf(sunxi_ahub_daudio->cpudai_name, "sunxi-ahub-cpu-aif%d",
sunxi_ahub_daudio->tdm_num);
sunxi_ahub_daudio->cpudai->name = sunxi_ahub_daudio->cpudai_name;
ret = snd_soc_register_component(&pdev->dev,
&sunxi_ahub_daudio_component,
sunxi_ahub_daudio->cpudai, 1);
if (ret) {
dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
ret = -EBUSY;
goto err_moduleclk_put;
}
return 0;
err_moduleclk_put:
clk_put(sunxi_ahub_daudio->moduleclk);
err_pllclk_put:
clk_put(sunxi_ahub_daudio->pllclk);
err_cpudai_kfree:
kfree(sunxi_ahub_daudio->cpudai);
err_devm_kfree:
devm_kfree(&pdev->dev, sunxi_ahub_daudio);
err_node_put:
of_node_put(np);
return ret;
}
static int __exit sunxi_ahub_daudio_dev_remove(struct platform_device *pdev)
{
struct sunxi_ahub_daudio_priv *sunxi_ahub_daudio =
dev_get_drvdata(&pdev->dev);
snd_soc_unregister_component(&pdev->dev);
clk_put(sunxi_ahub_daudio->moduleclk);
clk_put(sunxi_ahub_daudio->pllclk);
return 0;
}
static const struct of_device_id sunxi_ahub_daudio_of_match[] = {
{ .compatible = "allwinner,sunxi-ahub-daudio", },
{},
};
static struct platform_driver sunxi_ahub_daudio_driver = {
.probe = sunxi_ahub_daudio_dev_probe,
.remove = __exit_p(sunxi_ahub_daudio_dev_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = sunxi_ahub_daudio_of_match,
},
};
module_platform_driver(sunxi_ahub_daudio_driver);
MODULE_AUTHOR("wolfgang huang <huangjinhui@allwinnertech.com>");
MODULE_DESCRIPTION("SUNXI Audio Hub ASoC Interface");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:sunxi-ahub");
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