sound/hda/codecs/senarytech.c

Source file repositories/reference/linux-study-clean/sound/hda/codecs/senarytech.c

File Facts

System
Linux kernel
Corpus path
sound/hda/codecs/senarytech.c
Extension
.c
Size
7622 bytes
Lines
305
Domain
Driver Families
Bucket
sound/hda
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct senary_spec {
	struct hda_gen_spec gen;

	/* extra EAPD pins */
	unsigned int num_eapds;
	hda_nid_t eapds[4];
	bool dynamic_eapd;
	hda_nid_t mute_led_eapd;

	unsigned int parse_flags; /* flag for snd_hda_parse_pin_defcfg() */

	int mute_led_polarity;
	unsigned int gpio_led;
	unsigned int gpio_mute_led_mask;
	unsigned int gpio_mic_led_mask;
};

enum {
	SENARY_FIXUP_PINCFG_DEFAULT,
};

static const struct hda_pintbl senary_pincfg_default[] = {
	{ 0x16, 0x02211020 }, /* Headphone */
	{ 0x17, 0x40f001f0 }, /* Not used */
	{ 0x18, 0x05a1904d }, /* Mic */
	{ 0x19, 0x02a1104e }, /* Headset Mic */
	{ 0x1a, 0x01819030 }, /* Line-in */
	{ 0x1d, 0x01014010 }, /* Line-out */
	{}
};

static const struct hda_fixup senary_fixups[] = {
	[SENARY_FIXUP_PINCFG_DEFAULT] = {
		.type = HDA_FIXUP_PINS,
		.v.pins = senary_pincfg_default,
	},
};

/* Quirk table for specific machines can be added here */
static const struct hda_quirk sn6186_fixups[] = {
	{}
};

#ifdef CONFIG_SND_HDA_INPUT_BEEP
/* additional beep mixers; private_value will be overwritten */
static const struct snd_kcontrol_new senary_beep_mixer[] = {
	HDA_CODEC_VOLUME_MONO("Beep Playback Volume", 0, 1, 0, HDA_OUTPUT),
	HDA_CODEC_MUTE_BEEP_MONO("Beep Playback Switch", 0, 1, 0, HDA_OUTPUT),
};

static int set_beep_amp(struct senary_spec *spec, hda_nid_t nid,
			int idx, int dir)
{
	struct snd_kcontrol_new *knew;
	unsigned int beep_amp = HDA_COMPOSE_AMP_VAL(nid, 1, idx, dir);
	int i;

	for (i = 0; i < ARRAY_SIZE(senary_beep_mixer); i++) {
		knew = snd_hda_gen_add_kctl(&spec->gen, NULL,
					    &senary_beep_mixer[i]);
		if (!knew)
			return -ENOMEM;
		knew->private_value = beep_amp;
	}

	spec->gen.beep_nid = nid;
	return 0;
}

static int senary_auto_parse_beep(struct hda_codec *codec)
{
	struct senary_spec *spec = codec->spec;
	hda_nid_t nid;

	for_each_hda_codec_node(nid, codec)
		if ((get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_BEEP) &&
			(get_wcaps(codec, nid) & (AC_WCAP_OUT_AMP | AC_WCAP_AMP_OVRD)))
			return set_beep_amp(spec, nid, 0, HDA_OUTPUT);
	return 0;
}
#else
#define senary_auto_parse_beep(codec)	0
#endif

/* parse EAPDs */
static void senary_auto_parse_eapd(struct hda_codec *codec)
{
	struct senary_spec *spec = codec->spec;
	hda_nid_t nid;

Annotation

Implementation Notes