1/*
2 * Universal Interface for Intel High Definition Audio Codec
3 *
4 * HD audio interface patch for C-Media CMI9880
5 *
6 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7 *
8 *
9 *  This driver is free software; you can redistribute it and/or modify
10 *  it under the terms of the GNU General Public License as published by
11 *  the Free Software Foundation; either version 2 of the License, or
12 *  (at your option) any later version.
13 *
14 *  This driver is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this program; if not, write to the Free Software
21 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22 */
23
24#include <linux/init.h>
25#include <linux/slab.h>
26#include <linux/module.h>
27#include <sound/core.h>
28#include "hda_codec.h"
29#include "hda_local.h"
30#include "hda_auto_parser.h"
31#include "hda_jack.h"
32#include "hda_generic.h"
33
34struct cmi_spec {
35	struct hda_gen_spec gen;
36};
37
38/*
39 * stuff for auto-parser
40 */
41static const struct hda_codec_ops cmi_auto_patch_ops = {
42	.build_controls = snd_hda_gen_build_controls,
43	.build_pcms = snd_hda_gen_build_pcms,
44	.init = snd_hda_gen_init,
45	.free = snd_hda_gen_free,
46	.unsol_event = snd_hda_jack_unsol_event,
47};
48
49static int patch_cmi9880(struct hda_codec *codec)
50{
51	struct cmi_spec *spec;
52	struct auto_pin_cfg *cfg;
53	int err;
54
55	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
56	if (spec == NULL)
57		return -ENOMEM;
58
59	codec->spec = spec;
60	cfg = &spec->gen.autocfg;
61	snd_hda_gen_spec_init(&spec->gen);
62
63	err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
64	if (err < 0)
65		goto error;
66	err = snd_hda_gen_parse_auto_config(codec, cfg);
67	if (err < 0)
68		goto error;
69
70	codec->patch_ops = cmi_auto_patch_ops;
71	return 0;
72
73 error:
74	snd_hda_gen_free(codec);
75	return err;
76}
77
78static int patch_cmi8888(struct hda_codec *codec)
79{
80	struct cmi_spec *spec;
81	struct auto_pin_cfg *cfg;
82	int err;
83
84	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
85	if (!spec)
86		return -ENOMEM;
87
88	codec->spec = spec;
89	cfg = &spec->gen.autocfg;
90	snd_hda_gen_spec_init(&spec->gen);
91
92	/* mask NID 0x10 from the playback volume selection;
93	 * it's a headphone boost volume handled manually below
94	 */
95	spec->gen.out_vol_mask = (1ULL << 0x10);
96
97	err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0);
98	if (err < 0)
99		goto error;
100	err = snd_hda_gen_parse_auto_config(codec, cfg);
101	if (err < 0)
102		goto error;
103
104	if (get_defcfg_device(snd_hda_codec_get_pincfg(codec, 0x10)) ==
105	    AC_JACK_HP_OUT) {
106		static const struct snd_kcontrol_new amp_kctl =
107			HDA_CODEC_VOLUME("Headphone Amp Playback Volume",
108					 0x10, 0, HDA_OUTPUT);
109		if (!snd_hda_gen_add_kctl(&spec->gen, NULL, &amp_kctl)) {
110			err = -ENOMEM;
111			goto error;
112		}
113	}
114
115	codec->patch_ops = cmi_auto_patch_ops;
116	return 0;
117
118 error:
119	snd_hda_gen_free(codec);
120	return err;
121}
122
123/*
124 * patch entries
125 */
126static const struct hda_codec_preset snd_hda_preset_cmedia[] = {
127	{ .id = 0x13f68888, .name = "CMI8888", .patch = patch_cmi8888 },
128	{ .id = 0x13f69880, .name = "CMI9880", .patch = patch_cmi9880 },
129 	{ .id = 0x434d4980, .name = "CMI9880", .patch = patch_cmi9880 },
130	{} /* terminator */
131};
132
133MODULE_ALIAS("snd-hda-codec-id:13f68888");
134MODULE_ALIAS("snd-hda-codec-id:13f69880");
135MODULE_ALIAS("snd-hda-codec-id:434d4980");
136
137MODULE_LICENSE("GPL");
138MODULE_DESCRIPTION("C-Media HD-audio codec");
139
140static struct hda_codec_driver cmedia_driver = {
141	.preset = snd_hda_preset_cmedia,
142};
143
144module_hda_codec_driver(cmedia_driver);
145