diff options
Diffstat (limited to 'sound/hda/codecs/cmedia.c')
| -rw-r--r-- | sound/hda/codecs/cmedia.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/sound/hda/codecs/cmedia.c b/sound/hda/codecs/cmedia.c new file mode 100644 index 000000000000..15e5a1118a6e --- /dev/null +++ b/sound/hda/codecs/cmedia.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Universal codec driver for Intel High Definition Audio Codec + * + * HD audio codec driver for C-Media CMI9880 + * + * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/hda_codec.h> +#include "hda_local.h" +#include "hda_auto_parser.h" +#include "hda_jack.h" +#include "generic.h" + +static int cmedia_probe(struct hda_codec *codec, const struct hda_device_id *id) +{ + struct hda_gen_spec *spec; + struct auto_pin_cfg *cfg; + bool is_cmi8888 = id->vendor_id == 0x13f68888; + int err; + + spec = kzalloc(sizeof(*spec), GFP_KERNEL); + if (spec == NULL) + return -ENOMEM; + + codec->spec = spec; + cfg = &spec->autocfg; + snd_hda_gen_spec_init(spec); + + if (is_cmi8888) { + /* mask NID 0x10 from the playback volume selection; + * it's a headphone boost volume handled manually below + */ + spec->out_vol_mask = (1ULL << 0x10); + } + + err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0); + if (err < 0) + goto error; + err = snd_hda_gen_parse_auto_config(codec, cfg); + if (err < 0) + goto error; + + err = snd_hda_parse_pin_defcfg(codec, cfg, NULL, 0); + if (err < 0) + goto error; + err = snd_hda_gen_parse_auto_config(codec, cfg); + if (err < 0) + goto error; + + if (is_cmi8888) { + if (get_defcfg_device(snd_hda_codec_get_pincfg(codec, 0x10)) == + AC_JACK_HP_OUT) { + static const struct snd_kcontrol_new amp_kctl = + HDA_CODEC_VOLUME("Headphone Amp Playback Volume", + 0x10, 0, HDA_OUTPUT); + if (!snd_hda_gen_add_kctl(spec, NULL, &_kctl)) { + err = -ENOMEM; + goto error; + } + } + } + + return 0; + + error: + snd_hda_gen_remove(codec); + return err; +} + +static const struct hda_codec_ops cmedia_codec_ops = { + .probe = cmedia_probe, + .remove = snd_hda_gen_remove, + .build_controls = snd_hda_gen_build_controls, + .build_pcms = snd_hda_gen_build_pcms, + .init = snd_hda_gen_init, + .unsol_event = snd_hda_jack_unsol_event, + .check_power_status = snd_hda_gen_check_power_status, + .stream_pm = snd_hda_gen_stream_pm, +}; + +/* + * driver entries + */ +static const struct hda_device_id snd_hda_id_cmedia[] = { + HDA_CODEC_ID(0x13f68888, "CMI8888"), + HDA_CODEC_ID(0x13f69880, "CMI9880"), + HDA_CODEC_ID(0x434d4980, "CMI9880"), + {} /* terminator */ +}; +MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cmedia); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("C-Media HD-audio codec"); + +static struct hda_codec_driver cmedia_driver = { + .id = snd_hda_id_cmedia, + .ops = &cmedia_codec_ops, +}; + +module_hda_codec_driver(cmedia_driver); |