drivers: audio: add Audio Codec shell commands
Add shell commands to start, stop and set properties of an Audio Codec device. Signed-off-by: Benjamin Lemouzy <blemouzy@centralp.fr>
This commit is contained in:
Benjamin Lemouzy
Anas Nashif
parent
5690387462
commit
9fd0185c3b
3 changed files with 205 additions and 0 deletions
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@ -7,3 +7,4 @@ zephyr_library_sources_ifdef(CONFIG_AUDIO_MPXXDTYY mpxxdtyy.c)
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zephyr_library_sources_ifdef(CONFIG_AUDIO_MPXXDTYY mpxxdtyy-i2s.c)
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zephyr_library_sources_ifdef(CONFIG_AUDIO_DMIC_NRFX_PDM dmic_nrfx_pdm.c)
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zephyr_library_sources_ifdef(CONFIG_AUDIO_TAS6422DAC tas6422dac.c)
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zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_SHELL codec_shell.c)
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@ -25,6 +25,13 @@ config AUDIO_CODEC_INIT_PRIORITY
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help
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Audio codec device driver initialization priority.
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config AUDIO_CODEC_SHELL
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bool "Audio Codec shell"
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default y
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depends on SHELL
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help
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Enable the Audio Codec shell with Audio Codec related commands.
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module = AUDIO_CODEC
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module-str = audio codec
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source "subsys/logging/Kconfig.template.log_config"
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197
drivers/audio/codec_shell.c
Normal file
197
drivers/audio/codec_shell.c
Normal file
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@ -0,0 +1,197 @@
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/*
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* Copyright (c) 2023 Centralp
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/shell/shell.h>
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#include <zephyr/audio/codec.h>
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#define CODEC_START_HELP \
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"Start output audio playback. Syntax:\n" \
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"<device>"
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#define CODEC_STOP_HELP \
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"Stop output audio playback. Syntax:\n" \
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"<device>"
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#define CODEC_SET_PROP_HELP \
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"Set a codec property. Syntax:\n" \
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"<device> <property> <channel> <value>"
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#define CODEC_APPLY_PROP_HELP \
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"Apply any cached properties. Syntax:\n" \
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"<device>"
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static const char *const codec_property_name[] = {
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[AUDIO_PROPERTY_OUTPUT_VOLUME] = "volume",
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[AUDIO_PROPERTY_OUTPUT_MUTE] = "mute",
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};
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static const char *const codec_channel_name[] = {
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[AUDIO_CHANNEL_FRONT_LEFT] = "front_left",
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[AUDIO_CHANNEL_FRONT_RIGHT] = "front_right",
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[AUDIO_CHANNEL_LFE] = "lfe",
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[AUDIO_CHANNEL_FRONT_CENTER] = "front_center",
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[AUDIO_CHANNEL_REAR_LEFT] = "rear_left",
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[AUDIO_CHANNEL_REAR_RIGHT] = "rear_right",
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[AUDIO_CHANNEL_REAR_CENTER] = "rear_center",
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[AUDIO_CHANNEL_SIDE_LEFT] = "side_left",
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[AUDIO_CHANNEL_SIDE_RIGHT] = "side_right",
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[AUDIO_CHANNEL_ALL] = "all",
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};
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struct args_index {
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uint8_t device;
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uint8_t property;
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uint8_t channel;
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uint8_t value;
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};
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static const struct args_index args_indx = {
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.device = 1,
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.property = 2,
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.channel = 3,
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.value = 4,
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};
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static int parse_named_int(const char *name, const char *keystack[], size_t count)
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{
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char *endptr;
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int i;
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/* Attempt to parse name as a number first */
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i = strtoul(name, &endptr, 0);
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if (*endptr == '\0') {
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return i;
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}
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/* Name is not a number, look it up */
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for (i = 0; i < count; i++) {
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if (strcmp(name, keystack[i]) == 0) {
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return i;
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}
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}
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return -ENOTSUP;
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}
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static int cmd_start(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "Audio Codec device not found");
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return -ENODEV;
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}
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audio_codec_start_output(dev);
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return 0;
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}
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static int cmd_stop(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "Audio Codec device not found");
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return -ENODEV;
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}
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audio_codec_stop_output(dev);
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return 0;
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}
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static int cmd_set_prop(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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int property;
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int channel;
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long value;
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char *endptr;
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audio_property_value_t property_value;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "Audio Codec device not found");
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return -ENODEV;
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}
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property = parse_named_int(argv[args_indx.property], codec_property_name,
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ARRAY_SIZE(codec_property_name));
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if (property < 0) {
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shell_error(sh, "Property '%s' unknown", argv[args_indx.property]);
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return -EINVAL;
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}
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channel = parse_named_int(argv[args_indx.channel], codec_channel_name,
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ARRAY_SIZE(codec_channel_name));
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if (channel < 0) {
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shell_error(sh, "Channel '%s' unknown", argv[args_indx.channel]);
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return -EINVAL;
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}
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value = strtol(argv[args_indx.value], &endptr, 0);
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if (*endptr != '\0') {
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return -EINVAL;
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}
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if (value > INT32_MAX || value < INT32_MIN) {
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return -EINVAL;
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}
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switch (property) {
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case AUDIO_PROPERTY_OUTPUT_VOLUME:
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property_value.vol = value;
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break;
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case AUDIO_PROPERTY_OUTPUT_MUTE:
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property_value.mute = value;
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break;
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default:
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return -EINVAL;
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}
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return audio_codec_set_property(dev, property, channel, property_value);
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}
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static int cmd_apply_prop(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "Audio Codec device not found");
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return -ENODEV;
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}
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return audio_codec_apply_properties(dev);
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}
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/* Device name autocompletion support */
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static void device_name_get(size_t idx, struct shell_static_entry *entry)
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{
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const struct device *dev = shell_device_lookup(idx, NULL);
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entry->syntax = (dev != NULL) ? dev->name : NULL;
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entry->handler = NULL;
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entry->help = NULL;
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entry->subcmd = NULL;
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}
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SHELL_DYNAMIC_CMD_CREATE(dsub_device_name, device_name_get);
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/* clang-format off */
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SHELL_STATIC_SUBCMD_SET_CREATE(sub_codec,
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SHELL_CMD_ARG(start, &dsub_device_name, CODEC_START_HELP, cmd_start,
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2, 0),
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SHELL_CMD_ARG(stop, &dsub_device_name, CODEC_STOP_HELP, cmd_stop,
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2, 0),
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SHELL_CMD_ARG(set_prop, &dsub_device_name, CODEC_SET_PROP_HELP, cmd_set_prop,
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5, 0),
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SHELL_CMD_ARG(apply_prop, &dsub_device_name, CODEC_APPLY_PROP_HELP, cmd_apply_prop,
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2, 0),
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SHELL_SUBCMD_SET_END
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);
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/* clang-format on */
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SHELL_CMD_REGISTER(codec, &sub_codec, "Audio Codec commands", NULL);
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