ALSA: hda - Move up the fixup helper functions to the library module

Move the fixup helper functions in patch_realtek.c to hda_auto_parser.c
so that they can be used in other codec drivers like patch_conexant.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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 0000000..7cc3a16
--- /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);