1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Universal codec driver for Intel High Definition Audio Codec 4 * 5 * HD audio codec driver for C-Media CMI9880 6 * 7 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> 8 */ 9 10 #include <linux/init.h> 11 #include <linux/slab.h> 12 #include <linux/module.h> 13 #include <sound/core.h> 14 #include <sound/hda_codec.h> 15 #include "hda_local.h" 16 #include "hda_auto_parser.h" 17 #include "hda_jack.h" 18 #include "generic.h" 19 20 static int cmedia_probe(struct hda_codec *codec, const struct hda_device_id *id) 21 { 22 struct hda_gen_spec *spec; 23 struct auto_pin_cfg *cfg; 24 bool is_cmi8888 = id->vendor_id == 0x13f68888; 25 int err; 26 27 spec = kzalloc_obj(*spec); 28 if (spec == NULL) 29 return -ENOMEM; 30 31 codec->spec = spec; 32 cfg = &spec->autocfg; 33 snd_hda_gen_spec_init(spec); 34 35 if (is_cmi8888) { 36 /* mask NID 0x10 from the playback volume selection; 37 * it's a headphone boost volume handled manually below 38 */ 39 spec->out_vol_mask = (1ULL << 0x10); 40 } 41 42 err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0); 43 if (err < 0) 44 goto error; 45 err = snd_hda_gen_parse_auto_config(codec, cfg); 46 if (err < 0) 47 goto error; 48 49 if (is_cmi8888) { 50 if (get_defcfg_device(snd_hda_codec_get_pincfg(codec, 0x10)) == 51 AC_JACK_HP_OUT) { 52 static const struct snd_kcontrol_new amp_kctl = 53 HDA_CODEC_VOLUME("Headphone Amp Playback Volume", 54 0x10, 0, HDA_OUTPUT); 55 if (!snd_hda_gen_add_kctl(spec, NULL, &_kctl)) { 56 err = -ENOMEM; 57 goto error; 58 } 59 } 60 } 61 62 return 0; 63 64 error: 65 snd_hda_gen_remove(codec); 66 return err; 67 } 68 69 static const struct hda_codec_ops cmedia_codec_ops = { 70 .probe = cmedia_probe, 71 .remove = snd_hda_gen_remove, 72 .build_controls = snd_hda_gen_build_controls, 73 .build_pcms = snd_hda_gen_build_pcms, 74 .init = snd_hda_gen_init, 75 .unsol_event = snd_hda_jack_unsol_event, 76 .check_power_status = snd_hda_gen_check_power_status, 77 .stream_pm = snd_hda_gen_stream_pm, 78 }; 79 80 /* 81 * driver entries 82 */ 83 static const struct hda_device_id snd_hda_id_cmedia[] = { 84 HDA_CODEC_ID(0x13f68888, "CMI8888"), 85 HDA_CODEC_ID(0x13f69880, "CMI9880"), 86 HDA_CODEC_ID(0x434d4980, "CMI9880"), 87 {} /* terminator */ 88 }; 89 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cmedia); 90 91 MODULE_LICENSE("GPL"); 92 MODULE_DESCRIPTION("C-Media HD-audio codec"); 93 94 static struct hda_codec_driver cmedia_driver = { 95 .id = snd_hda_id_cmedia, 96 .ops = &cmedia_codec_ops, 97 }; 98 99 module_hda_codec_driver(cmedia_driver); 100