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authorTakashi Iwai <tiwai@suse.de>2009-01-13 11:50:46 -0500
committerTakashi Iwai <tiwai@suse.de>2009-01-13 11:50:46 -0500
commit14ed74fbe2b917f0ad3e30cf2644203c04a45e89 (patch)
treef1c9642a8c1f5c91399a9679faf32adfd213b508 /sound/pci/hda/hda_codec.c
parentc107b41c485c43f15b24743e81eaab742b3c0b67 (diff)
parent58eec4235d63e07b98544527e031e7ae807e15df (diff)
Merge branch 'topic/hda-gateway' into topic/hda
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index fdad6ae7aad4..b7bba7dc7cf1 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2724,6 +2724,67 @@ int snd_hda_check_board_config(struct hda_codec *codec,
2724EXPORT_SYMBOL_HDA(snd_hda_check_board_config); 2724EXPORT_SYMBOL_HDA(snd_hda_check_board_config);
2725 2725
2726/** 2726/**
2727 * snd_hda_check_board_codec_sid_config - compare the current codec
2728 subsystem ID with the
2729 config table
2730
2731 This is important for Gateway notebooks with SB450 HDA Audio
2732 where the vendor ID of the PCI device is:
2733 ATI Technologies Inc SB450 HDA Audio [1002:437b]
2734 and the vendor/subvendor are found only at the codec.
2735
2736 * @codec: the HDA codec
2737 * @num_configs: number of config enums
2738 * @models: array of model name strings
2739 * @tbl: configuration table, terminated by null entries
2740 *
2741 * Compares the modelname or PCI subsystem id of the current codec with the
2742 * given configuration table. If a matching entry is found, returns its
2743 * config value (supposed to be 0 or positive).
2744 *
2745 * If no entries are matching, the function returns a negative value.
2746 */
2747int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
2748 int num_configs, const char **models,
2749 const struct snd_pci_quirk *tbl)
2750{
2751 const struct snd_pci_quirk *q;
2752
2753 /* Search for codec ID */
2754 for (q = tbl; q->subvendor; q++) {
2755 unsigned long vendorid = (q->subdevice) | (q->subvendor << 16);
2756
2757 if (vendorid == codec->subsystem_id)
2758 break;
2759 }
2760
2761 if (!q->subvendor)
2762 return -1;
2763
2764 tbl = q;
2765
2766 if (tbl->value >= 0 && tbl->value < num_configs) {
2767#ifdef CONFIG_SND_DEBUG_DETECT
2768 char tmp[10];
2769 const char *model = NULL;
2770 if (models)
2771 model = models[tbl->value];
2772 if (!model) {
2773 sprintf(tmp, "#%d", tbl->value);
2774 model = tmp;
2775 }
2776 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2777 "for config %x:%x (%s)\n",
2778 model, tbl->subvendor, tbl->subdevice,
2779 (tbl->name ? tbl->name : "Unknown device"));
2780#endif
2781 return tbl->value;
2782 }
2783 return -1;
2784}
2785EXPORT_SYMBOL_HDA(snd_hda_check_board_codec_sid_config);
2786
2787/**
2727 * snd_hda_add_new_ctls - create controls from the array 2788 * snd_hda_add_new_ctls - create controls from the array
2728 * @codec: the HDA codec 2789 * @codec: the HDA codec
2729 * @knew: the array of struct snd_kcontrol_new 2790 * @knew: the array of struct snd_kcontrol_new