mirror of https://gitee.com/openkylin/linux.git
142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
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* Universal Interface for Intel High Definition Audio Codec
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*
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* HD audio interface patch for C-Media CMI9880
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*
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* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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*
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/hda_codec.h>
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#include "hda_local.h"
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#include "hda_auto_parser.h"
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#include "hda_jack.h"
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#include "hda_generic.h"
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struct cmi_spec {
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struct hda_gen_spec gen;
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};
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/*
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* stuff for auto-parser
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*/
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static const struct hda_codec_ops cmi_auto_patch_ops = {
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.build_controls = snd_hda_gen_build_controls,
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.build_pcms = snd_hda_gen_build_pcms,
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.init = snd_hda_gen_init,
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.free = snd_hda_gen_free,
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.unsol_event = snd_hda_jack_unsol_event,
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};
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static int patch_cmi9880(struct hda_codec *codec)
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{
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struct cmi_spec *spec;
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struct auto_pin_cfg *cfg;
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int err;
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spec = kzalloc(sizeof(*spec), GFP_KERNEL);
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if (spec == NULL)
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return -ENOMEM;
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codec->spec = spec;
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codec->patch_ops = cmi_auto_patch_ops;
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cfg = &spec->gen.autocfg;
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snd_hda_gen_spec_init(&spec->gen);
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err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
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if (err < 0)
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goto error;
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err = snd_hda_gen_parse_auto_config(codec, cfg);
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if (err < 0)
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goto error;
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return 0;
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error:
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snd_hda_gen_free(codec);
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return err;
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}
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static int patch_cmi8888(struct hda_codec *codec)
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{
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struct cmi_spec *spec;
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struct auto_pin_cfg *cfg;
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int err;
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spec = kzalloc(sizeof(*spec), GFP_KERNEL);
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if (!spec)
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return -ENOMEM;
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codec->spec = spec;
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codec->patch_ops = cmi_auto_patch_ops;
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cfg = &spec->gen.autocfg;
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snd_hda_gen_spec_init(&spec->gen);
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/* mask NID 0x10 from the playback volume selection;
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* it's a headphone boost volume handled manually below
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*/
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spec->gen.out_vol_mask = (1ULL << 0x10);
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err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
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if (err < 0)
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goto error;
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err = snd_hda_gen_parse_auto_config(codec, cfg);
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if (err < 0)
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goto error;
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if (get_defcfg_device(snd_hda_codec_get_pincfg(codec, 0x10)) ==
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AC_JACK_HP_OUT) {
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static const struct snd_kcontrol_new amp_kctl =
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HDA_CODEC_VOLUME("Headphone Amp Playback Volume",
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0x10, 0, HDA_OUTPUT);
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if (!snd_hda_gen_add_kctl(&spec->gen, NULL, &_kctl)) {
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err = -ENOMEM;
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goto error;
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}
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}
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return 0;
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error:
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snd_hda_gen_free(codec);
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return err;
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}
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/*
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* patch entries
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*/
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static const struct hda_device_id snd_hda_id_cmedia[] = {
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HDA_CODEC_ENTRY(0x13f68888, "CMI8888", patch_cmi8888),
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HDA_CODEC_ENTRY(0x13f69880, "CMI9880", patch_cmi9880),
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HDA_CODEC_ENTRY(0x434d4980, "CMI9880", patch_cmi9880),
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{} /* terminator */
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};
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MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cmedia);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("C-Media HD-audio codec");
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static struct hda_codec_driver cmedia_driver = {
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.id = snd_hda_id_cmedia,
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};
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module_hda_codec_driver(cmedia_driver);
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