mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-06 02:24:14 +08:00
933f98be60
The pointer to of_phandle_args passed to snd_soc_get_dai_name() and of_xlate_dai_name() implementations is not modified. Since it is being used only to translate passed OF node to a DAI name, it should not be modified, so mark it as const for correctness and safer code. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20210221153024.453583-1-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
152 lines
4.6 KiB
C
152 lines
4.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// Copyright (c) 2020 BayLibre, SAS.
|
|
// Author: Jerome Brunet <jbrunet@baylibre.com>
|
|
|
|
#include <linux/bitfield.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/soc-dai.h>
|
|
|
|
#include <dt-bindings/sound/meson-aiu.h>
|
|
#include "aiu.h"
|
|
#include "meson-codec-glue.h"
|
|
|
|
#define CTRL_CLK_SEL GENMASK(1, 0)
|
|
#define CTRL_DATA_SEL_SHIFT 4
|
|
#define CTRL_DATA_SEL (0x3 << CTRL_DATA_SEL_SHIFT)
|
|
|
|
static const char * const aiu_codec_ctrl_mux_texts[] = {
|
|
"DISABLED", "PCM", "I2S",
|
|
};
|
|
|
|
static int aiu_codec_ctrl_mux_put_enum(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component =
|
|
snd_soc_dapm_kcontrol_component(kcontrol);
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_dapm_kcontrol_dapm(kcontrol);
|
|
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
|
unsigned int mux, changed;
|
|
|
|
mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
|
|
changed = snd_soc_component_test_bits(component, e->reg,
|
|
CTRL_DATA_SEL,
|
|
FIELD_PREP(CTRL_DATA_SEL, mux));
|
|
|
|
if (!changed)
|
|
return 0;
|
|
|
|
/* Force disconnect of the mux while updating */
|
|
snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
|
|
|
|
/* Reset the source first */
|
|
snd_soc_component_update_bits(component, e->reg,
|
|
CTRL_CLK_SEL |
|
|
CTRL_DATA_SEL,
|
|
FIELD_PREP(CTRL_CLK_SEL, 0) |
|
|
FIELD_PREP(CTRL_DATA_SEL, 0));
|
|
|
|
/* Set the appropriate source */
|
|
snd_soc_component_update_bits(component, e->reg,
|
|
CTRL_CLK_SEL |
|
|
CTRL_DATA_SEL,
|
|
FIELD_PREP(CTRL_CLK_SEL, mux) |
|
|
FIELD_PREP(CTRL_DATA_SEL, mux));
|
|
|
|
snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL,
|
|
CTRL_DATA_SEL_SHIFT,
|
|
aiu_codec_ctrl_mux_texts);
|
|
|
|
static const struct snd_kcontrol_new aiu_hdmi_ctrl_mux =
|
|
SOC_DAPM_ENUM_EXT("HDMI Source", aiu_hdmi_ctrl_mux_enum,
|
|
snd_soc_dapm_get_enum_double,
|
|
aiu_codec_ctrl_mux_put_enum);
|
|
|
|
static const struct snd_soc_dapm_widget aiu_hdmi_ctrl_widgets[] = {
|
|
SND_SOC_DAPM_MUX("HDMI CTRL SRC", SND_SOC_NOPM, 0, 0,
|
|
&aiu_hdmi_ctrl_mux),
|
|
};
|
|
|
|
static const struct snd_soc_dai_ops aiu_codec_ctrl_input_ops = {
|
|
.hw_params = meson_codec_glue_input_hw_params,
|
|
.set_fmt = meson_codec_glue_input_set_fmt,
|
|
};
|
|
|
|
static const struct snd_soc_dai_ops aiu_codec_ctrl_output_ops = {
|
|
.startup = meson_codec_glue_output_startup,
|
|
};
|
|
|
|
#define AIU_CODEC_CTRL_FORMATS \
|
|
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
|
|
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \
|
|
SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
#define AIU_CODEC_CTRL_STREAM(xname, xsuffix) \
|
|
{ \
|
|
.stream_name = xname " " xsuffix, \
|
|
.channels_min = 1, \
|
|
.channels_max = 8, \
|
|
.rate_min = 5512, \
|
|
.rate_max = 192000, \
|
|
.formats = AIU_CODEC_CTRL_FORMATS, \
|
|
}
|
|
|
|
#define AIU_CODEC_CTRL_INPUT(xname) { \
|
|
.name = "CODEC CTRL " xname, \
|
|
.playback = AIU_CODEC_CTRL_STREAM(xname, "Playback"), \
|
|
.ops = &aiu_codec_ctrl_input_ops, \
|
|
.probe = meson_codec_glue_input_dai_probe, \
|
|
.remove = meson_codec_glue_input_dai_remove, \
|
|
}
|
|
|
|
#define AIU_CODEC_CTRL_OUTPUT(xname) { \
|
|
.name = "CODEC CTRL " xname, \
|
|
.capture = AIU_CODEC_CTRL_STREAM(xname, "Capture"), \
|
|
.ops = &aiu_codec_ctrl_output_ops, \
|
|
}
|
|
|
|
static struct snd_soc_dai_driver aiu_hdmi_ctrl_dai_drv[] = {
|
|
[CTRL_I2S] = AIU_CODEC_CTRL_INPUT("HDMI I2S IN"),
|
|
[CTRL_PCM] = AIU_CODEC_CTRL_INPUT("HDMI PCM IN"),
|
|
[CTRL_OUT] = AIU_CODEC_CTRL_OUTPUT("HDMI OUT"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route aiu_hdmi_ctrl_routes[] = {
|
|
{ "HDMI CTRL SRC", "I2S", "HDMI I2S IN Playback" },
|
|
{ "HDMI CTRL SRC", "PCM", "HDMI PCM IN Playback" },
|
|
{ "HDMI OUT Capture", NULL, "HDMI CTRL SRC" },
|
|
};
|
|
|
|
static int aiu_hdmi_of_xlate_dai_name(struct snd_soc_component *component,
|
|
const struct of_phandle_args *args,
|
|
const char **dai_name)
|
|
{
|
|
return aiu_of_xlate_dai_name(component, args, dai_name, AIU_HDMI);
|
|
}
|
|
|
|
static const struct snd_soc_component_driver aiu_hdmi_ctrl_component = {
|
|
.name = "AIU HDMI Codec Control",
|
|
.dapm_widgets = aiu_hdmi_ctrl_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(aiu_hdmi_ctrl_widgets),
|
|
.dapm_routes = aiu_hdmi_ctrl_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(aiu_hdmi_ctrl_routes),
|
|
.of_xlate_dai_name = aiu_hdmi_of_xlate_dai_name,
|
|
.endianness = 1,
|
|
.non_legacy_dai_naming = 1,
|
|
};
|
|
|
|
int aiu_hdmi_ctrl_register_component(struct device *dev)
|
|
{
|
|
return snd_soc_register_component(dev, &aiu_hdmi_ctrl_component,
|
|
aiu_hdmi_ctrl_dai_drv,
|
|
ARRAY_SIZE(aiu_hdmi_ctrl_dai_drv));
|
|
}
|
|
|