ASoC: SOF: acpi led support for switch controls (5d43001a) · Commits · 戴 / test

include/uapi/sound/sof/tokens.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -113,4 +113,8 @@
		/* ESAI */
		#define SOF_TKN_IMX_ESAI_MCLK_ID 1100

		/* Led control for mute switches */
		#define SOF_TKN_MUTE_LED_USE 1300
		#define SOF_TKN_MUTE_LED_DIRECTION 1301

		#endif

+32 −0

Original line number	Diff line number	Diff line
		@@ -11,8 +11,37 @@
		/* Mixer Controls */

		#include <linux/pm_runtime.h>
		#include <linux/leds.h>
		#include "sof-priv.h"

		static void update_mute_led(struct snd_sof_control *scontrol,
		struct snd_kcontrol *kcontrol,
		struct snd_ctl_elem_value *ucontrol)
		{
		unsigned int temp = 0;
		unsigned int mask;
		int i;

		mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

		for (i = 0; i < scontrol->num_channels; i++) {
		if (ucontrol->value.integer.value[i]) {
		temp \|= mask;
		break;
		}
		}

		if (temp == scontrol->led_ctl.led_value)
		return;

		scontrol->led_ctl.led_value = temp;

		if (!scontrol->led_ctl.direction)
		ledtrig_audio_set(LED_AUDIO_MUTE, temp ? LED_OFF : LED_ON);
		else
		ledtrig_audio_set(LED_AUDIO_MICMUTE, temp ? LED_OFF : LED_ON);
		}

		static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
		{
		if (value >= size)
		@@ -112,6 +141,9 @@ int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
		cdata->chanv[i].channel = i;
		}

		if (scontrol->led_ctl.use_led)
		update_mute_led(scontrol, kcontrol, ucontrol);

		/* notify DSP of mixer updates */
		if (pm_runtime_active(sdev->dev))
		snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,

+9 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@

		#include <sound/hdaudio.h>
		#include <sound/soc.h>
		#include <sound/control.h>

		#include <sound/sof.h>
		#include <sound/sof/stream.h> /* needs to be included before control.h */
		@@ -310,6 +311,12 @@ struct snd_sof_pcm {
		bool prepared[2]; /* PCM_PARAMS set successfully */
		};

		struct snd_sof_led_control {
		unsigned int use_led;
		unsigned int direction;
		unsigned int led_value;
		};

		/* ALSA SOF Kcontrol device */
		struct snd_sof_control {
		struct snd_sof_dev *sdev;
		@@ -324,6 +331,8 @@ struct snd_sof_control {
		u32 volume_table; / volume table computed from tlv data*/

		struct list_head list; /* list in sdev control list */

		struct snd_sof_led_control led_ctl;
		};

		/* ASoC SOF DAPM widget */

+13 −0

Original line number	Diff line number	Diff line
		@@ -682,6 +682,14 @@ static const struct sof_topology_token dmic_pdm_tokens[] = {
		static const struct sof_topology_token hda_tokens[] = {
		};

		/* Leds */
		static const struct sof_topology_token led_tokens[] = {
		{SOF_TKN_MUTE_LED_USE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
		offsetof(struct snd_sof_led_control, use_led), 0},
		{SOF_TKN_MUTE_LED_DIRECTION, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_u32, offsetof(struct snd_sof_led_control, direction), 0},
		};

		static void sof_parse_uuid_tokens(struct snd_soc_component *scomp,
		void *object,
		const struct sof_topology_token *tokens,
		@@ -944,6 +952,11 @@ static int sof_control_load_volume(struct snd_soc_component *scomp,
		}

		out:
		/* set up possible led control from mixer private data */
		ret = sof_parse_tokens(scomp, &scontrol->led_ctl, led_tokens,
		ARRAY_SIZE(led_tokens), mc->priv.array,
		le32_to_cpu(mc->priv.size));

		dev_dbg(sdev->dev, "tplg: load kcontrol index %d chans %d\n",
		scontrol->comp_id, scontrol->num_channels);