sound/hda/codecs/realtek/realtek.c

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

File Facts

System
Linux kernel
Corpus path
sound/hda/codecs/realtek/realtek.c
Extension
.c
Size
62370 bytes
Lines
2258
Domain
Driver Families
Bucket
sound/hda
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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 alc_codec_rename_table {
	unsigned int vendor_id;
	unsigned short coef_mask;
	unsigned short coef_bits;
	const char *name;
};

struct alc_codec_rename_pci_table {
	unsigned int codec_vendor_id;
	unsigned short pci_subvendor;
	unsigned short pci_subdevice;
	const char *name;
};

static const struct alc_codec_rename_table rename_tbl[] = {
	{ 0x10ec0221, 0xf00f, 0x1003, "ALC231" },
	{ 0x10ec0269, 0xfff0, 0x3010, "ALC277" },
	{ 0x10ec0269, 0xf0f0, 0x2010, "ALC259" },
	{ 0x10ec0269, 0xf0f0, 0x3010, "ALC258" },
	{ 0x10ec0269, 0x00f0, 0x0010, "ALC269VB" },
	{ 0x10ec0269, 0xffff, 0xa023, "ALC259" },
	{ 0x10ec0269, 0xffff, 0x6023, "ALC281X" },
	{ 0x10ec0269, 0x00f0, 0x0020, "ALC269VC" },
	{ 0x10ec0269, 0x00f0, 0x0030, "ALC269VD" },
	{ 0x10ec0662, 0xffff, 0x4020, "ALC656" },
	{ 0x10ec0887, 0x00f0, 0x0030, "ALC887-VD" },
	{ 0x10ec0888, 0x00f0, 0x0030, "ALC888-VD" },
	{ 0x10ec0888, 0xf0f0, 0x3020, "ALC886" },
	{ 0x10ec0899, 0x2000, 0x2000, "ALC899" },
	{ 0x10ec0892, 0xffff, 0x8020, "ALC661" },
	{ 0x10ec0892, 0xffff, 0x8011, "ALC661" },
	{ 0x10ec0892, 0xffff, 0x4011, "ALC656" },
	{ } /* terminator */
};

static const struct alc_codec_rename_pci_table rename_pci_tbl[] = {
	{ 0x10ec0280, 0x1028, 0, "ALC3220" },
	{ 0x10ec0282, 0x1028, 0, "ALC3221" },
	{ 0x10ec0283, 0x1028, 0, "ALC3223" },
	{ 0x10ec0288, 0x1028, 0, "ALC3263" },
	{ 0x10ec0292, 0x1028, 0, "ALC3226" },
	{ 0x10ec0293, 0x1028, 0, "ALC3235" },
	{ 0x10ec0255, 0x1028, 0, "ALC3234" },
	{ 0x10ec0668, 0x1028, 0, "ALC3661" },
	{ 0x10ec0275, 0x1028, 0, "ALC3260" },
	{ 0x10ec0899, 0x1028, 0, "ALC3861" },
	{ 0x10ec0298, 0x1028, 0, "ALC3266" },
	{ 0x10ec0236, 0x1028, 0, "ALC3204" },
	{ 0x10ec0256, 0x1028, 0, "ALC3246" },
	{ 0x10ec0225, 0x1028, 0, "ALC3253" },
	{ 0x10ec0295, 0x1028, 0, "ALC3254" },
	{ 0x10ec0299, 0x1028, 0, "ALC3271" },
	{ 0x10ec0670, 0x1025, 0, "ALC669X" },
	{ 0x10ec0676, 0x1025, 0, "ALC679X" },
	{ 0x10ec0282, 0x1043, 0, "ALC3229" },
	{ 0x10ec0233, 0x1043, 0, "ALC3236" },
	{ 0x10ec0280, 0x103c, 0, "ALC3228" },
	{ 0x10ec0282, 0x103c, 0, "ALC3227" },
	{ 0x10ec0286, 0x103c, 0, "ALC3242" },
	{ 0x10ec0290, 0x103c, 0, "ALC3241" },
	{ 0x10ec0668, 0x103c, 0, "ALC3662" },
	{ 0x10ec0283, 0x17aa, 0, "ALC3239" },
	{ 0x10ec0292, 0x17aa, 0, "ALC3232" },
	{ 0x10ec0257, 0x12f0, 0, "ALC3328" },
	{ } /* terminator */
};

static int alc_codec_rename_from_preset(struct hda_codec *codec)
{
	const struct alc_codec_rename_table *p;
	const struct alc_codec_rename_pci_table *q;

	for (p = rename_tbl; p->vendor_id; p++) {
		if (p->vendor_id != codec->core.vendor_id)
			continue;
		if ((alc_get_coef0(codec) & p->coef_mask) == p->coef_bits)
			return alc_codec_rename(codec, p->name);
	}

	if (!codec->bus->pci)
		return 0;
	for (q = rename_pci_tbl; q->codec_vendor_id; q++) {
		if (q->codec_vendor_id != codec->core.vendor_id)
			continue;
		if (q->pci_subvendor != codec->bus->pci->subsystem_vendor)
			continue;
		if (!q->pci_subdevice ||
		    q->pci_subdevice == codec->bus->pci->subsystem_device)
			return alc_codec_rename(codec, q->name);
	}

Annotation

Implementation Notes