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linuxdebug/sound/soc/tegra/tegra186_asrc.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-only
//
// tegra186_asrc.c - Tegra186 ASRC driver
//
// Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "tegra186_asrc.h"
#include "tegra_cif.h"
#define ASRC_STREAM_SOURCE_SELECT(id) \
(TEGRA186_ASRC_CFG + ((id) * TEGRA186_ASRC_STREAM_STRIDE))
#define ASRC_STREAM_REG(reg, id) ((reg) + ((id) * TEGRA186_ASRC_STREAM_STRIDE))
#define ASRC_STREAM_REG_DEFAULTS(id) \
{ ASRC_STREAM_REG(TEGRA186_ASRC_CFG, id), \
(((id) + 1) << 4) }, \
{ ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, id), \
0x1 }, \
{ ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, id), \
0x0 }, \
{ ASRC_STREAM_REG(TEGRA186_ASRC_MUTE_UNMUTE_DURATION, id), \
0x400 }, \
{ ASRC_STREAM_REG(TEGRA186_ASRC_RX_CIF_CTRL, id), \
0x7500 }, \
{ ASRC_STREAM_REG(TEGRA186_ASRC_TX_CIF_CTRL, id), \
0x7500 }
static const struct reg_default tegra186_asrc_reg_defaults[] = {
ASRC_STREAM_REG_DEFAULTS(0),
ASRC_STREAM_REG_DEFAULTS(1),
ASRC_STREAM_REG_DEFAULTS(2),
ASRC_STREAM_REG_DEFAULTS(3),
ASRC_STREAM_REG_DEFAULTS(4),
ASRC_STREAM_REG_DEFAULTS(5),
{ TEGRA186_ASRC_GLOBAL_ENB, 0},
{ TEGRA186_ASRC_GLOBAL_SOFT_RESET, 0},
{ TEGRA186_ASRC_GLOBAL_CG, 0x1 },
{ TEGRA186_ASRC_GLOBAL_CFG, 0x0 },
{ TEGRA186_ASRC_GLOBAL_SCRATCH_ADDR, 0},
{ TEGRA186_ASRC_GLOBAL_SCRATCH_CFG, 0x0c207980 },
{ TEGRA186_ASRC_RATIO_UPD_RX_CIF_CTRL, 0x00115500 },
{ TEGRA186_ASRC_GLOBAL_INT_MASK, 0x0},
{ TEGRA186_ASRC_GLOBAL_INT_SET, 0x0},
{ TEGRA186_ASRC_GLOBAL_INT_CLEAR, 0x0},
{ TEGRA186_ASRC_GLOBAL_APR_CTRL, 0x0},
{ TEGRA186_ASRC_GLOBAL_APR_CTRL_ACCESS_CTRL, 0x0},
{ TEGRA186_ASRC_GLOBAL_DISARM_APR, 0x0},
{ TEGRA186_ASRC_GLOBAL_DISARM_APR_ACCESS_CTRL, 0x0},
{ TEGRA186_ASRC_GLOBAL_RATIO_WR_ACCESS, 0x0},
{ TEGRA186_ASRC_GLOBAL_RATIO_WR_ACCESS_CTRL, 0x0},
{ TEGRA186_ASRC_CYA, 0x0},
};
static void tegra186_asrc_lock_stream(struct tegra186_asrc *asrc,
unsigned int id)
{
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_LOCK_STATUS,
id),
1);
}
static int __maybe_unused tegra186_asrc_runtime_suspend(struct device *dev)
{
struct tegra186_asrc *asrc = dev_get_drvdata(dev);
regcache_cache_only(asrc->regmap, true);
regcache_mark_dirty(asrc->regmap);
return 0;
}
static int __maybe_unused tegra186_asrc_runtime_resume(struct device *dev)
{
struct tegra186_asrc *asrc = dev_get_drvdata(dev);
int id;
regcache_cache_only(asrc->regmap, false);
/*
* Below sequence is recommended after a runtime PM cycle.
* This otherwise leads to transfer failures. The cache
* sync is done after this to restore other settings.
*/
regmap_write(asrc->regmap, TEGRA186_ASRC_GLOBAL_SCRATCH_ADDR,
TEGRA186_ASRC_ARAM_START_ADDR);
regmap_write(asrc->regmap, TEGRA186_ASRC_GLOBAL_ENB,
TEGRA186_ASRC_GLOBAL_EN);
regcache_sync(asrc->regmap);
for (id = 0; id < TEGRA186_ASRC_STREAM_MAX; id++) {
if (asrc->lane[id].ratio_source !=
TEGRA186_ASRC_RATIO_SOURCE_SW)
continue;
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART,
id),
asrc->lane[id].int_part);
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART,
id),
asrc->lane[id].frac_part);
tegra186_asrc_lock_stream(asrc, id);
}
return 0;
}
static int tegra186_asrc_set_audio_cif(struct tegra186_asrc *asrc,
struct snd_pcm_hw_params *params,
unsigned int reg)
{
int channels, audio_bits;
struct tegra_cif_conf cif_conf;
memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
channels = params_channels(params);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
audio_bits = TEGRA_ACIF_BITS_16;
break;
case SNDRV_PCM_FORMAT_S24_LE:
case SNDRV_PCM_FORMAT_S32_LE:
audio_bits = TEGRA_ACIF_BITS_32;
break;
default:
return -EINVAL;
}
cif_conf.audio_ch = channels;
cif_conf.client_ch = channels;
cif_conf.audio_bits = audio_bits;
cif_conf.client_bits = TEGRA_ACIF_BITS_24;
tegra_set_cif(asrc->regmap, reg, &cif_conf);
return 0;
}
static int tegra186_asrc_in_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct device *dev = dai->dev;
struct tegra186_asrc *asrc = snd_soc_dai_get_drvdata(dai);
int ret, id = dai->id;
/* Set input threshold */
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, dai->id),
asrc->lane[id].input_thresh);
ret = tegra186_asrc_set_audio_cif(asrc, params,
ASRC_STREAM_REG(TEGRA186_ASRC_RX_CIF_CTRL, dai->id));
if (ret) {
dev_err(dev, "Can't set ASRC RX%d CIF: %d\n", dai->id, ret);
return ret;
}
return ret;
}
static int tegra186_asrc_out_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct device *dev = dai->dev;
struct tegra186_asrc *asrc = snd_soc_dai_get_drvdata(dai);
int ret, id = dai->id - 7;
/* Set output threshold */
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, id),
asrc->lane[id].output_thresh);
ret = tegra186_asrc_set_audio_cif(asrc, params,
ASRC_STREAM_REG(TEGRA186_ASRC_TX_CIF_CTRL, id));
if (ret) {
dev_err(dev, "Can't set ASRC TX%d CIF: %d\n", id, ret);
return ret;
}
/* Set ENABLE_HW_RATIO_COMP */
if (asrc->lane[id].hwcomp_disable) {
regmap_update_bits(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, id),
TEGRA186_ASRC_STREAM_ENABLE_HW_RATIO_COMP_MASK,
TEGRA186_ASRC_STREAM_ENABLE_HW_RATIO_COMP_DISABLE);
} else {
regmap_update_bits(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, id),
TEGRA186_ASRC_STREAM_ENABLE_HW_RATIO_COMP_MASK,
TEGRA186_ASRC_STREAM_ENABLE_HW_RATIO_COMP_ENABLE);
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_COMP, id),
TEGRA186_ASRC_STREAM_DEFAULT_HW_COMP_BIAS_VALUE);
}
/* Set lock */
regmap_update_bits(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, id),
1, asrc->lane[id].ratio_source);
if (asrc->lane[id].ratio_source == TEGRA186_ASRC_RATIO_SOURCE_SW) {
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, id),
asrc->lane[id].int_part);
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, id),
asrc->lane[id].frac_part);
tegra186_asrc_lock_stream(asrc, id);
}
return ret;
}
static int tegra186_asrc_get_ratio_source(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *asrc_private =
(struct soc_enum *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
ucontrol->value.enumerated.item[0] = asrc->lane[id].ratio_source;
return 0;
}
static int tegra186_asrc_put_ratio_source(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_enum *asrc_private =
(struct soc_enum *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
bool change = false;
asrc->lane[id].ratio_source = ucontrol->value.enumerated.item[0];
regmap_update_bits_check(asrc->regmap, asrc_private->reg,
TEGRA186_ASRC_STREAM_RATIO_TYPE_MASK,
asrc->lane[id].ratio_source,
&change);
return change ? 1 : 0;
}
static int tegra186_asrc_get_ratio_int(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
regmap_read(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, id),
&asrc->lane[id].int_part);
ucontrol->value.integer.value[0] = asrc->lane[id].int_part;
return 0;
}
static int tegra186_asrc_put_ratio_int(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
bool change = false;
if (asrc->lane[id].ratio_source == TEGRA186_ASRC_RATIO_SOURCE_ARAD) {
dev_err(cmpnt->dev,
"Lane %d ratio source is ARAD, invalid SW update\n",
id);
return -EINVAL;
}
asrc->lane[id].int_part = ucontrol->value.integer.value[0];
regmap_update_bits_check(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART,
id),
TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK,
asrc->lane[id].int_part, &change);
tegra186_asrc_lock_stream(asrc, id);
return change ? 1 : 0;
}
static int tegra186_asrc_get_ratio_frac(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mreg_control *asrc_private =
(struct soc_mreg_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->regbase / TEGRA186_ASRC_STREAM_STRIDE;
regmap_read(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, id),
&asrc->lane[id].frac_part);
ucontrol->value.integer.value[0] = asrc->lane[id].frac_part;
return 0;
}
static int tegra186_asrc_put_ratio_frac(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mreg_control *asrc_private =
(struct soc_mreg_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->regbase / TEGRA186_ASRC_STREAM_STRIDE;
bool change = false;
if (asrc->lane[id].ratio_source == TEGRA186_ASRC_RATIO_SOURCE_ARAD) {
dev_err(cmpnt->dev,
"Lane %d ratio source is ARAD, invalid SW update\n",
id);
return -EINVAL;
}
asrc->lane[id].frac_part = ucontrol->value.integer.value[0];
regmap_update_bits_check(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART,
id),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
asrc->lane[id].frac_part, &change);
tegra186_asrc_lock_stream(asrc, id);
return change ? 1 : 0;
}
static int tegra186_asrc_get_hwcomp_disable(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
ucontrol->value.integer.value[0] = asrc->lane[id].hwcomp_disable;
return 0;
}
static int tegra186_asrc_put_hwcomp_disable(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
int value = ucontrol->value.integer.value[0];
if (value == asrc->lane[id].hwcomp_disable)
return 0;
asrc->lane[id].hwcomp_disable = value;
return 1;
}
static int tegra186_asrc_get_input_threshold(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
ucontrol->value.integer.value[0] = (asrc->lane[id].input_thresh & 0x3);
return 0;
}
static int tegra186_asrc_put_input_threshold(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
int value = (asrc->lane[id].input_thresh & ~(0x3)) |
ucontrol->value.integer.value[0];
if (value == asrc->lane[id].input_thresh)
return 0;
asrc->lane[id].input_thresh = value;
return 1;
}
static int tegra186_asrc_get_output_threshold(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
ucontrol->value.integer.value[0] = (asrc->lane[id].output_thresh & 0x3);
return 0;
}
static int tegra186_asrc_put_output_threshold(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *asrc_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra186_asrc *asrc = snd_soc_component_get_drvdata(cmpnt);
unsigned int id = asrc_private->reg / TEGRA186_ASRC_STREAM_STRIDE;
int value = (asrc->lane[id].output_thresh & ~(0x3)) |
ucontrol->value.integer.value[0];
if (value == asrc->lane[id].output_thresh)
return 0;
asrc->lane[id].output_thresh = value;
return 1;
}
static int tegra186_asrc_widget_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct tegra186_asrc *asrc = dev_get_drvdata(cmpnt->dev);
unsigned int id =
(w->reg - TEGRA186_ASRC_ENABLE) / TEGRA186_ASRC_STREAM_STRIDE;
regmap_write(asrc->regmap,
ASRC_STREAM_REG(TEGRA186_ASRC_SOFT_RESET, id),
0x1);
return 0;
}
static const struct snd_soc_dai_ops tegra186_asrc_in_dai_ops = {
.hw_params = tegra186_asrc_in_hw_params,
};
static const struct snd_soc_dai_ops tegra186_asrc_out_dai_ops = {
.hw_params = tegra186_asrc_out_hw_params,
};
#define IN_DAI(id) \
{ \
.name = "ASRC-RX-CIF"#id, \
.playback = { \
.stream_name = "RX" #id "-CIF-Playback",\
.channels_min = 1, \
.channels_max = 12, \
.rates = SNDRV_PCM_RATE_8000_192000, \
.formats = SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.capture = { \
.stream_name = "RX" #id "-CIF-Capture", \
.channels_min = 1, \
.channels_max = 12, \
.rates = SNDRV_PCM_RATE_8000_192000, \
.formats = SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.ops = &tegra186_asrc_in_dai_ops, \
}
#define OUT_DAI(id) \
{ \
.name = "ASRC-TX-CIF"#id, \
.playback = { \
.stream_name = "TX" #id "-CIF-Playback",\
.channels_min = 1, \
.channels_max = 12, \
.rates = SNDRV_PCM_RATE_8000_192000, \
.formats = SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.capture = { \
.stream_name = "TX" #id "-CIF-Capture", \
.channels_min = 1, \
.channels_max = 12, \
.rates = SNDRV_PCM_RATE_8000_192000, \
.formats = SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.ops = &tegra186_asrc_out_dai_ops, \
}
static struct snd_soc_dai_driver tegra186_asrc_dais[] = {
/* ASRC Input */
IN_DAI(1),
IN_DAI(2),
IN_DAI(3),
IN_DAI(4),
IN_DAI(5),
IN_DAI(6),
IN_DAI(7),
/* ASRC Output */
OUT_DAI(1),
OUT_DAI(2),
OUT_DAI(3),
OUT_DAI(4),
OUT_DAI(5),
OUT_DAI(6),
};
static const struct snd_soc_dapm_widget tegra186_asrc_widgets[] = {
SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX5", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX6", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("RX7", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT_E("TX1", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 0),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT_E("TX2", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 1),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT_E("TX3", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 2),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT_E("TX4", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 3),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT_E("TX5", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 4),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT_E("TX6", NULL, 0,
ASRC_STREAM_REG(TEGRA186_ASRC_ENABLE, 5),
TEGRA186_ASRC_STREAM_EN_SHIFT, 0,
tegra186_asrc_widget_event,
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SPK("Depacketizer", NULL),
};
#define ASRC_STREAM_ROUTE(id, sname) \
{ "RX" #id " XBAR-" sname, NULL, "RX" #id " XBAR-TX" }, \
{ "RX" #id "-CIF-" sname, NULL, "RX" #id " XBAR-" sname }, \
{ "RX" #id, NULL, "RX" #id "-CIF-" sname }, \
{ "TX" #id, NULL, "RX" #id }, \
{ "TX" #id "-CIF-" sname, NULL, "TX" #id }, \
{ "TX" #id " XBAR-" sname, NULL, "TX" #id "-CIF-" sname }, \
{ "TX" #id " XBAR-RX", NULL, "TX" #id " XBAR-" sname },
#define ASRC_ROUTE(id) \
ASRC_STREAM_ROUTE(id, "Playback") \
ASRC_STREAM_ROUTE(id, "Capture")
#define ASRC_RATIO_ROUTE(sname) \
{ "RX7 XBAR-" sname, NULL, "RX7 XBAR-TX" }, \
{ "RX7-CIF-" sname, NULL, "RX7 XBAR-" sname }, \
{ "RX7", NULL, "RX7-CIF-" sname }, \
{ "Depacketizer", NULL, "RX7" },
static const struct snd_soc_dapm_route tegra186_asrc_routes[] = {
ASRC_ROUTE(1)
ASRC_ROUTE(2)
ASRC_ROUTE(3)
ASRC_ROUTE(4)
ASRC_ROUTE(5)
ASRC_ROUTE(6)
ASRC_RATIO_ROUTE("Playback")
ASRC_RATIO_ROUTE("Capture")
};
static const char * const tegra186_asrc_ratio_source_text[] = {
"ARAD",
"SW",
};
#define ASRC_SOURCE_DECL(name, id) \
static const struct soc_enum name = \
SOC_ENUM_SINGLE(ASRC_STREAM_SOURCE_SELECT(id), \
0, 2, tegra186_asrc_ratio_source_text)
ASRC_SOURCE_DECL(src_select1, 0);
ASRC_SOURCE_DECL(src_select2, 1);
ASRC_SOURCE_DECL(src_select3, 2);
ASRC_SOURCE_DECL(src_select4, 3);
ASRC_SOURCE_DECL(src_select5, 4);
ASRC_SOURCE_DECL(src_select6, 5);
#define SOC_SINGLE_EXT_FRAC(xname, xregbase, xmax, xget, xput) \
{ \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = (xname), \
.info = snd_soc_info_xr_sx, \
.get = xget, \
.put = xput, \
\
.private_value = (unsigned long)&(struct soc_mreg_control) \
{ \
.regbase = xregbase, \
.regcount = 1, \
.nbits = 32, \
.invert = 0, \
.min = 0, \
.max = xmax \
} \
}
static const struct snd_kcontrol_new tegra186_asrc_controls[] = {
/* Controls for integer part of ratio */
SOC_SINGLE_EXT("Ratio1 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 0),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
SOC_SINGLE_EXT("Ratio2 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 1),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
SOC_SINGLE_EXT("Ratio3 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 2),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
SOC_SINGLE_EXT("Ratio4 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 3),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
SOC_SINGLE_EXT("Ratio5 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 4),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
SOC_SINGLE_EXT("Ratio6 Integer Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_INT_PART, 5),
0, TEGRA186_ASRC_STREAM_RATIO_INT_PART_MASK, 0,
tegra186_asrc_get_ratio_int,
tegra186_asrc_put_ratio_int),
/* Controls for fractional part of ratio */
SOC_SINGLE_EXT_FRAC("Ratio1 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 0),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
SOC_SINGLE_EXT_FRAC("Ratio2 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 1),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
SOC_SINGLE_EXT_FRAC("Ratio3 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 2),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
SOC_SINGLE_EXT_FRAC("Ratio4 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 3),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
SOC_SINGLE_EXT_FRAC("Ratio5 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 4),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
SOC_SINGLE_EXT_FRAC("Ratio6 Fractional Part",
ASRC_STREAM_REG(TEGRA186_ASRC_RATIO_FRAC_PART, 5),
TEGRA186_ASRC_STREAM_RATIO_FRAC_PART_MASK,
tegra186_asrc_get_ratio_frac,
tegra186_asrc_put_ratio_frac),
/* Source of ratio provider */
SOC_ENUM_EXT("Ratio1 Source", src_select1,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
SOC_ENUM_EXT("Ratio2 Source", src_select2,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
SOC_ENUM_EXT("Ratio3 Source", src_select3,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
SOC_ENUM_EXT("Ratio4 Source", src_select4,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
SOC_ENUM_EXT("Ratio5 Source", src_select5,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
SOC_ENUM_EXT("Ratio6 Source", src_select6,
tegra186_asrc_get_ratio_source,
tegra186_asrc_put_ratio_source),
/* Disable HW managed overflow/underflow issue at input and output */
SOC_SINGLE_EXT("Stream1 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 0), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
SOC_SINGLE_EXT("Stream2 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 1), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
SOC_SINGLE_EXT("Stream3 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 2), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
SOC_SINGLE_EXT("Stream4 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 3), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
SOC_SINGLE_EXT("Stream5 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 4), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
SOC_SINGLE_EXT("Stream6 HW Component Disable",
ASRC_STREAM_REG(TEGRA186_ASRC_CFG, 5), 0, 1, 0,
tegra186_asrc_get_hwcomp_disable,
tegra186_asrc_put_hwcomp_disable),
/* Input threshold for watermark fields */
SOC_SINGLE_EXT("Stream1 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 0), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
SOC_SINGLE_EXT("Stream2 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 1), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
SOC_SINGLE_EXT("Stream3 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 2), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
SOC_SINGLE_EXT("Stream4 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 3), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
SOC_SINGLE_EXT("Stream5 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 4), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
SOC_SINGLE_EXT("Stream6 Input Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_RX_THRESHOLD, 4), 0, 3, 0,
tegra186_asrc_get_input_threshold,
tegra186_asrc_put_input_threshold),
/* Output threshold for watermark fields */
SOC_SINGLE_EXT("Stream1 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 0), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
SOC_SINGLE_EXT("Stream2 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 1), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
SOC_SINGLE_EXT("Stream3 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 2), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
SOC_SINGLE_EXT("Stream4 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 3), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
SOC_SINGLE_EXT("Stream5 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 4), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
SOC_SINGLE_EXT("Stream6 Output Threshold",
ASRC_STREAM_REG(TEGRA186_ASRC_TX_THRESHOLD, 5), 0, 3, 0,
tegra186_asrc_get_output_threshold,
tegra186_asrc_put_output_threshold),
};
static const struct snd_soc_component_driver tegra186_asrc_cmpnt = {
.dapm_widgets = tegra186_asrc_widgets,
.num_dapm_widgets = ARRAY_SIZE(tegra186_asrc_widgets),
.dapm_routes = tegra186_asrc_routes,
.num_dapm_routes = ARRAY_SIZE(tegra186_asrc_routes),
.controls = tegra186_asrc_controls,
.num_controls = ARRAY_SIZE(tegra186_asrc_controls),
};
static bool tegra186_asrc_wr_reg(struct device *dev, unsigned int reg)
{
if (reg < TEGRA186_ASRC_STREAM_LIMIT)
reg %= TEGRA186_ASRC_STREAM_STRIDE;
switch (reg) {
case TEGRA186_ASRC_CFG ... TEGRA186_ASRC_RATIO_COMP:
case TEGRA186_ASRC_RX_CIF_CTRL:
case TEGRA186_ASRC_TX_CIF_CTRL:
case TEGRA186_ASRC_ENABLE:
case TEGRA186_ASRC_SOFT_RESET:
case TEGRA186_ASRC_GLOBAL_ENB ... TEGRA186_ASRC_RATIO_UPD_RX_CIF_CTRL:
case TEGRA186_ASRC_GLOBAL_INT_MASK ... TEGRA186_ASRC_GLOBAL_INT_CLEAR:
case TEGRA186_ASRC_GLOBAL_APR_CTRL ... TEGRA186_ASRC_CYA:
return true;
default:
return false;
}
}
static bool tegra186_asrc_rd_reg(struct device *dev, unsigned int reg)
{
if (reg < TEGRA186_ASRC_STREAM_LIMIT)
reg %= TEGRA186_ASRC_STREAM_STRIDE;
if (tegra186_asrc_wr_reg(dev, reg))
return true;
switch (reg) {
case TEGRA186_ASRC_RX_STATUS:
case TEGRA186_ASRC_TX_STATUS:
case TEGRA186_ASRC_STATUS ... TEGRA186_ASRC_OUTSAMPLEBUF_CFG:
case TEGRA186_ASRC_RATIO_UPD_RX_STATUS:
case TEGRA186_ASRC_GLOBAL_STATUS ... TEGRA186_ASRC_GLOBAL_INT_STATUS:
case TEGRA186_ASRC_GLOBAL_TRANSFER_ERROR_LOG:
return true;
default:
return false;
}
}
static bool tegra186_asrc_volatile_reg(struct device *dev, unsigned int reg)
{
if (reg < TEGRA186_ASRC_STREAM_LIMIT)
reg %= TEGRA186_ASRC_STREAM_STRIDE;
switch (reg) {
case TEGRA186_ASRC_RX_STATUS:
case TEGRA186_ASRC_TX_STATUS:
case TEGRA186_ASRC_SOFT_RESET:
case TEGRA186_ASRC_RATIO_INT_PART:
case TEGRA186_ASRC_RATIO_FRAC_PART:
case TEGRA186_ASRC_STATUS:
case TEGRA186_ASRC_RATIO_LOCK_STATUS:
case TEGRA186_ASRC_RATIO_UPD_RX_STATUS:
case TEGRA186_ASRC_GLOBAL_SOFT_RESET:
case TEGRA186_ASRC_GLOBAL_STATUS:
case TEGRA186_ASRC_GLOBAL_STREAM_ENABLE_STATUS:
case TEGRA186_ASRC_GLOBAL_INT_STATUS:
case TEGRA186_ASRC_GLOBAL_TRANSFER_ERROR_LOG:
return true;
default:
return false;
}
}
static const struct regmap_config tegra186_asrc_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = TEGRA186_ASRC_CYA,
.writeable_reg = tegra186_asrc_wr_reg,
.readable_reg = tegra186_asrc_rd_reg,
.volatile_reg = tegra186_asrc_volatile_reg,
.reg_defaults = tegra186_asrc_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(tegra186_asrc_reg_defaults),
.cache_type = REGCACHE_FLAT,
};
static const struct of_device_id tegra186_asrc_of_match[] = {
{ .compatible = "nvidia,tegra186-asrc" },
{},
};
MODULE_DEVICE_TABLE(of, tegra186_asrc_of_match);
static int tegra186_asrc_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct tegra186_asrc *asrc;
void __iomem *regs;
unsigned int i;
int err;
asrc = devm_kzalloc(dev, sizeof(*asrc), GFP_KERNEL);
if (!asrc)
return -ENOMEM;
dev_set_drvdata(dev, asrc);
regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
asrc->regmap = devm_regmap_init_mmio(dev, regs,
&tegra186_asrc_regmap_config);
if (IS_ERR(asrc->regmap)) {
dev_err(dev, "regmap init failed\n");
return PTR_ERR(asrc->regmap);
}
regcache_cache_only(asrc->regmap, true);
regmap_write(asrc->regmap, TEGRA186_ASRC_GLOBAL_CFG,
TEGRA186_ASRC_GLOBAL_CFG_FRAC_32BIT_PRECISION);
/* Initialize default output srate */
for (i = 0; i < TEGRA186_ASRC_STREAM_MAX; i++) {
asrc->lane[i].ratio_source = TEGRA186_ASRC_RATIO_SOURCE_SW;
asrc->lane[i].int_part = 1;
asrc->lane[i].frac_part = 0;
asrc->lane[i].hwcomp_disable = 0;
asrc->lane[i].input_thresh =
TEGRA186_ASRC_STREAM_DEFAULT_INPUT_HW_COMP_THRESH_CFG;
asrc->lane[i].output_thresh =
TEGRA186_ASRC_STREAM_DEFAULT_OUTPUT_HW_COMP_THRESH_CFG;
}
err = devm_snd_soc_register_component(dev, &tegra186_asrc_cmpnt,
tegra186_asrc_dais,
ARRAY_SIZE(tegra186_asrc_dais));
if (err) {
dev_err(dev, "can't register ASRC component, err: %d\n", err);
return err;
}
pm_runtime_enable(dev);
return 0;
}
static int tegra186_asrc_platform_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct dev_pm_ops tegra186_asrc_pm_ops = {
SET_RUNTIME_PM_OPS(tegra186_asrc_runtime_suspend,
tegra186_asrc_runtime_resume, NULL)
SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
static struct platform_driver tegra186_asrc_driver = {
.driver = {
.name = "tegra186-asrc",
.of_match_table = tegra186_asrc_of_match,
.pm = &tegra186_asrc_pm_ops,
},
.probe = tegra186_asrc_platform_probe,
.remove = tegra186_asrc_platform_remove,
};
module_platform_driver(tegra186_asrc_driver)
MODULE_AUTHOR("Junghyun Kim <juskim@nvidia.com>");
MODULE_DESCRIPTION("Tegra186 ASRC ASoC driver");
MODULE_LICENSE("GPL");