pci/hda/patch_cmedia.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Universal Interface for Intel High Definition Audio Codec
0004  *
0005  * HD audio interface patch for C-Media CMI9880
0006  *
0007  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
0008  */
0009
0010 #include <linux/init.h>
0011 #include <linux/slab.h>
0012 #include <linux/module.h>
0013 #include <sound/core.h>
0014 #include <sound/hda_codec.h>
0015 #include "hda_local.h"
0016 #include "hda_auto_parser.h"
0017 #include "hda_jack.h"
0018 #include "hda_generic.h"
0019
0020 struct cmi_spec {
0021     struct hda_gen_spec gen;
0022 };
0023
0024 /*
0025  * stuff for auto-parser
0026  */
0027 static const struct hda_codec_ops cmi_auto_patch_ops = {
0028     .build_controls = snd_hda_gen_build_controls,
0029     .build_pcms = snd_hda_gen_build_pcms,
0030     .init = snd_hda_gen_init,
0031     .free = snd_hda_gen_free,
0032     .unsol_event = snd_hda_jack_unsol_event,
0033 };
0034
0035 static int patch_cmi9880(struct hda_codec *codec)
0036 {
0037     struct cmi_spec *spec;
0038     struct auto_pin_cfg *cfg;
0039     int err;
0040
0041     spec = kzalloc(sizeof(*spec), GFP_KERNEL);
0042     if (spec == NULL)
0043         return -ENOMEM;
0044
0045     codec->spec = spec;
0046     codec->patch_ops = cmi_auto_patch_ops;
0047     cfg = &spec->gen.autocfg;
0048     snd_hda_gen_spec_init(&spec->gen);
0049
0050     err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
0051     if (err < 0)
0052         goto error;
0053     err = snd_hda_gen_parse_auto_config(codec, cfg);
0054     if (err < 0)
0055         goto error;
0056
0057     return 0;
0058
0059  error:
0060     snd_hda_gen_free(codec);
0061     return err;
0062 }
0063
0064 static int patch_cmi8888(struct hda_codec *codec)
0065 {
0066     struct cmi_spec *spec;
0067     struct auto_pin_cfg *cfg;
0068     int err;
0069
0070     spec = kzalloc(sizeof(*spec), GFP_KERNEL);
0071     if (!spec)
0072         return -ENOMEM;
0073
0074     codec->spec = spec;
0075     codec->patch_ops = cmi_auto_patch_ops;
0076     cfg = &spec->gen.autocfg;
0077     snd_hda_gen_spec_init(&spec->gen);
0078
0079     /* mask NID 0x10 from the playback volume selection;
0080      * it's a headphone boost volume handled manually below
0081      */
0082     spec->gen.out_vol_mask = (1ULL << 0x10);
0083
0084     err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
0085     if (err < 0)
0086         goto error;
0087     err = snd_hda_gen_parse_auto_config(codec, cfg);
0088     if (err < 0)
0089         goto error;
0090
0091     if (get_defcfg_device(snd_hda_codec_get_pincfg(codec, 0x10)) ==
0092         AC_JACK_HP_OUT) {
0093         static const struct snd_kcontrol_new amp_kctl =
0094             HDA_CODEC_VOLUME("Headphone Amp Playback Volume",
0095                      0x10, 0, HDA_OUTPUT);
0096         if (!snd_hda_gen_add_kctl(&spec->gen, NULL, &amp_kctl)) {
0097             err = -ENOMEM;
0098             goto error;
0099         }
0100     }
0101
0102     return 0;
0103
0104  error:
0105     snd_hda_gen_free(codec);
0106     return err;
0107 }
0108
0109 /*
0110  * patch entries
0111  */
0112 static const struct hda_device_id snd_hda_id_cmedia[] = {
0113     HDA_CODEC_ENTRY(0x13f68888, "CMI8888", patch_cmi8888),
0114     HDA_CODEC_ENTRY(0x13f69880, "CMI9880", patch_cmi9880),
0115     HDA_CODEC_ENTRY(0x434d4980, "CMI9880", patch_cmi9880),
0116     {} /* terminator */
0117 };
0118 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cmedia);
0119
0120 MODULE_LICENSE("GPL");
0121 MODULE_DESCRIPTION("C-Media HD-audio codec");
0122
0123 static struct hda_codec_driver cmedia_driver = {
0124     .id = snd_hda_id_cmedia,
0125 };
0126
0127 module_hda_codec_driver(cmedia_driver);