diff options
Diffstat (limited to 'sound/pci/hda/hda_auto_parser.c')
| -rw-r--r-- | sound/pci/hda/hda_auto_parser.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c new file mode 100644 index 00000000000..7cc3a168824 --- /dev/null +++ b/sound/pci/hda/hda_auto_parser.c @@ -0,0 +1,163 @@ +/* + * BIOS auto-parser helper functions for HD-audio + * + * Copyright (c) 2012 Takashi Iwai <tiwai@suse.de> + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/slab.h> +#include <linux/export.h> +#include <sound/core.h> +#include "hda_codec.h" +#include "hda_auto_parser.h" + +#define SFX "hda_codec: " + +int snd_hda_gen_add_verbs(struct hda_gen_spec *spec, + const struct hda_verb *list) +{ + const struct hda_verb **v; + snd_array_init(&spec->verbs, sizeof(struct hda_verb *), 8); + v = snd_array_new(&spec->verbs); + if (!v) + return -ENOMEM; + *v = list; + return 0; +} +EXPORT_SYMBOL_HDA(snd_hda_gen_add_verbs); + +void snd_hda_gen_apply_verbs(struct hda_codec *codec) +{ + struct hda_gen_spec *spec = codec->spec; + int i; + for (i = 0; i < spec->verbs.used; i++) { + struct hda_verb **v = snd_array_elem(&spec->verbs, i); + snd_hda_sequence_write(codec, *v); + } +} +EXPORT_SYMBOL_HDA(snd_hda_gen_apply_verbs); + +void snd_hda_apply_pincfgs(struct hda_codec *codec, + const struct hda_pintbl *cfg) +{ + for (; cfg->nid; cfg++) + snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val); +} +EXPORT_SYMBOL_HDA(snd_hda_apply_pincfgs); + +void snd_hda_apply_fixup(struct hda_codec *codec, int action) +{ + struct hda_gen_spec *spec = codec->spec; + int id = spec->fixup_id; +#ifdef CONFIG_SND_DEBUG_VERBOSE + const char *modelname = spec->fixup_name; +#endif + int depth = 0; + + if (!spec->fixup_list) + return; + + while (id >= 0) { + const struct hda_fixup *fix = spec->fixup_list + id; + + switch (fix->type) { + case HDA_FIXUP_PINS: + if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins) + break; + snd_printdd(KERN_INFO SFX + "%s: Apply pincfg for %s\n", + codec->chip_name, modelname); + snd_hda_apply_pincfgs(codec, fix->v.pins); + break; + case HDA_FIXUP_VERBS: + if (action != HDA_FIXUP_ACT_PROBE || !fix->v.verbs) + break; + snd_printdd(KERN_INFO SFX + "%s: Apply fix-verbs for %s\n", + codec->chip_name, modelname); + snd_hda_gen_add_verbs(codec->spec, fix->v.verbs); + break; + case HDA_FIXUP_FUNC: + if (!fix->v.func) + break; + snd_printdd(KERN_INFO SFX + "%s: Apply fix-func for %s\n", + codec->chip_name, modelname); + fix->v.func(codec, fix, action); + break; + default: + snd_printk(KERN_ERR SFX + "%s: Invalid fixup type %d\n", + codec->chip_name, fix->type); + break; + } + if (!fix->chained) + break; + if (++depth > 10) + break; + id = fix->chain_id; + } +} +EXPORT_SYMBOL_HDA(snd_hda_apply_fixup); + +void snd_hda_pick_fixup(struct hda_codec *codec, + const struct hda_model_fixup *models, + const struct snd_pci_quirk *quirk, + const struct hda_fixup *fixlist) +{ + struct hda_gen_spec *spec = codec->spec; + const struct snd_pci_quirk *q; + int id = -1; + const char *name = NULL; + + /* when model=nofixup is given, don't pick up any fixups */ + if (codec->modelname && !strcmp(codec->modelname, "nofixup")) { + spec->fixup_list = NULL; + spec->fixup_id = -1; + return; + } + + if (codec->modelname && models) { + while (models->name) { + if (!strcmp(codec->modelname, models->name)) { + id = models->id; + name = models->name; + break; + } + models++; + } + } + if (id < 0) { + q = snd_pci_quirk_lookup(codec->bus->pci, quirk); + if (q) { + id = q->value; +#ifdef CONFIG_SND_DEBUG_VERBOSE + name = q->name; +#endif + } + } + if (id < 0) { + for (q = quirk; q->subvendor; q++) { + unsigned int vendorid = + q->subdevice | (q->subvendor << 16); + if (vendorid == codec->subsystem_id) { + id = q->value; +#ifdef CONFIG_SND_DEBUG_VERBOSE + name = q->name; +#endif + break; + } + } + } + + spec->fixup_id = id; + if (id >= 0) { + spec->fixup_list = fixlist; + spec->fixup_name = name; + } +} +EXPORT_SYMBOL_HDA(snd_hda_pick_fixup); |