sound/hda/codecs/realtek/alc861.c

Source file repositories/reference/linux-study-clean/sound/hda/codecs/realtek/alc861.c

File Facts

System
Linux kernel
Corpus path
sound/hda/codecs/realtek/alc861.c
Extension
.c
Size
4244 bytes
Lines
164
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 ALC861 codec
//

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

static int alc861_parse_auto_config(struct hda_codec *codec)
{
	static const hda_nid_t alc861_ignore[] = { 0x1d, 0 };
	static const hda_nid_t alc861_ssids[] = { 0x0e, 0x0f, 0x0b, 0 };
	return alc_parse_auto_config(codec, alc861_ignore, alc861_ssids);
}

/* Pin config fixes */
enum {
	ALC861_FIXUP_FSC_AMILO_PI1505,
	ALC861_FIXUP_AMP_VREF_0F,
	ALC861_FIXUP_NO_JACK_DETECT,
	ALC861_FIXUP_ASUS_A6RP,
	ALC660_FIXUP_ASUS_W7J,
};

/* On some laptops, VREF of pin 0x0f is abused for controlling the main amp */
static void alc861_fixup_asus_amp_vref_0f(struct hda_codec *codec,
			const struct hda_fixup *fix, int action)
{
	struct alc_spec *spec = codec->spec;
	unsigned int val;

	if (action != HDA_FIXUP_ACT_INIT)
		return;
	val = snd_hda_codec_get_pin_target(codec, 0x0f);
	if (!(val & (AC_PINCTL_IN_EN | AC_PINCTL_OUT_EN)))
		val |= AC_PINCTL_IN_EN;
	val |= AC_PINCTL_VREF_50;
	snd_hda_set_pin_ctl(codec, 0x0f, val);
	spec->gen.keep_vref_in_automute = 1;
}

static const struct hda_fixup alc861_fixups[] = {
	[ALC861_FIXUP_FSC_AMILO_PI1505] = {
		.type = HDA_FIXUP_PINS,
		.v.pins = (const struct hda_pintbl[]) {
			{ 0x0b, 0x0221101f }, /* HP */
			{ 0x0f, 0x90170310 }, /* speaker */
			{ }
		}
	},
	[ALC861_FIXUP_AMP_VREF_0F] = {
		.type = HDA_FIXUP_FUNC,
		.v.func = alc861_fixup_asus_amp_vref_0f,
	},
	[ALC861_FIXUP_NO_JACK_DETECT] = {
		.type = HDA_FIXUP_FUNC,
		.v.func = alc_fixup_no_jack_detect,
	},
	[ALC861_FIXUP_ASUS_A6RP] = {
		.type = HDA_FIXUP_FUNC,
		.v.func = alc861_fixup_asus_amp_vref_0f,
		.chained = true,
		.chain_id = ALC861_FIXUP_NO_JACK_DETECT,
	},
	[ALC660_FIXUP_ASUS_W7J] = {
		.type = HDA_FIXUP_VERBS,
		.v.verbs = (const struct hda_verb[]) {
			/* ASUS W7J needs a magic pin setup on unused NID 0x10
			 * for enabling outputs
			 */
			{0x10, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
			{ }
		},
	}
};

static const struct hda_quirk alc861_fixup_tbl[] = {
	SND_PCI_QUIRK(0x1043, 0x1253, "ASUS W7J", ALC660_FIXUP_ASUS_W7J),
	SND_PCI_QUIRK(0x1043, 0x1263, "ASUS Z35HL", ALC660_FIXUP_ASUS_W7J),
	SND_PCI_QUIRK(0x1043, 0x1393, "ASUS A6Rp", ALC861_FIXUP_ASUS_A6RP),
	SND_PCI_QUIRK_VENDOR(0x1043, "ASUS laptop", ALC861_FIXUP_AMP_VREF_0F),
	SND_PCI_QUIRK(0x1462, 0x7254, "HP DX2200", ALC861_FIXUP_NO_JACK_DETECT),
	SND_PCI_QUIRK_VENDOR(0x1584, "Haier/Uniwill", ALC861_FIXUP_AMP_VREF_0F),
	SND_PCI_QUIRK(0x1734, 0x10c7, "FSC Amilo Pi1505", ALC861_FIXUP_FSC_AMILO_PI1505),
	{}
};

/*
 */

Annotation

Implementation Notes