sound/hda/codecs/realtek/alc260.c

Source file repositories/reference/linux-study-clean/sound/hda/codecs/realtek/alc260.c

File Facts

System
Linux kernel
Corpus path
sound/hda/codecs/realtek/alc260.c
Extension
.c
Size
7644 bytes
Lines
291
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

// SPDX-License-Identifier: GPL-2.0-or-later
//
// Realtek ALC260 codec
//

#include <linux/init.h>
#include <linux/module.h>
#include "realtek.h"

static int alc260_parse_auto_config(struct hda_codec *codec)
{
	static const hda_nid_t alc260_ignore[] = { 0x17, 0 };
	static const hda_nid_t alc260_ssids[] = { 0x10, 0x15, 0x0f, 0 };
	return alc_parse_auto_config(codec, alc260_ignore, alc260_ssids);
}

/*
 * Pin config fixes
 */
enum {
	ALC260_FIXUP_HP_DC5750,
	ALC260_FIXUP_HP_PIN_0F,
	ALC260_FIXUP_COEF,
	ALC260_FIXUP_GPIO1,
	ALC260_FIXUP_GPIO1_TOGGLE,
	ALC260_FIXUP_REPLACER,
	ALC260_FIXUP_HP_B1900,
	ALC260_FIXUP_KN1,
	ALC260_FIXUP_FSC_S7020,
	ALC260_FIXUP_FSC_S7020_JWSE,
	ALC260_FIXUP_VAIO_PINS,
};

static void alc260_gpio1_automute(struct hda_codec *codec)
{
	struct alc_spec *spec = codec->spec;

	alc_update_gpio_data(codec, 0x01, spec->gen.hp_jack_present);
}

static void alc260_fixup_gpio1_toggle(struct hda_codec *codec,
				      const struct hda_fixup *fix, int action)
{
	struct alc_spec *spec = codec->spec;
	if (action == HDA_FIXUP_ACT_PROBE) {
		/* although the machine has only one output pin, we need to
		 * toggle GPIO1 according to the jack state
		 */
		spec->gen.automute_hook = alc260_gpio1_automute;
		spec->gen.detect_hp = 1;
		spec->gen.automute_speaker = 1;
		spec->gen.autocfg.hp_pins[0] = 0x0f; /* copy it for automute */
		snd_hda_jack_detect_enable_callback(codec, 0x0f,
						    snd_hda_gen_hp_automute);
		alc_setup_gpio(codec, 0x01);
	}
}

static void alc260_fixup_kn1(struct hda_codec *codec,
			     const struct hda_fixup *fix, int action)
{
	struct alc_spec *spec = codec->spec;
	static const struct hda_pintbl pincfgs[] = {
		{ 0x0f, 0x02214000 }, /* HP/speaker */
		{ 0x12, 0x90a60160 }, /* int mic */
		{ 0x13, 0x02a19000 }, /* ext mic */
		{ 0x18, 0x01446000 }, /* SPDIF out */
		/* disable bogus I/O pins */
		{ 0x10, 0x411111f0 },
		{ 0x11, 0x411111f0 },
		{ 0x14, 0x411111f0 },
		{ 0x15, 0x411111f0 },
		{ 0x16, 0x411111f0 },
		{ 0x17, 0x411111f0 },
		{ 0x19, 0x411111f0 },
		{ }
	};

	switch (action) {
	case HDA_FIXUP_ACT_PRE_PROBE:
		snd_hda_apply_pincfgs(codec, pincfgs);
		spec->init_amp = ALC_INIT_NONE;
		break;
	}
}

static void alc260_fixup_fsc_s7020(struct hda_codec *codec,
				   const struct hda_fixup *fix, int action)
{
	struct alc_spec *spec = codec->spec;

Annotation

Implementation Notes