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authorTakashi Iwai <tiwai@suse.de>2008-11-27 15:47:11 +0100
committerTakashi Iwai <tiwai@suse.de>2008-11-27 15:47:11 +0100
commit1289e9e8b42f973f2ab39e5f4f2239ff826c27e9 (patch)
treef0462154211f734f278e981a5d5ae1ec66f1fb03 /sound/pci/hda/hda_codec.h
parent30d72e9f614e7bd76e28d4d92bd54d90a96905bb (diff)
ALSA: hda - Modularize HD-audio driver
Split the monolithc HD-audio driver into several pieces: - snd-hda-intel HD-audio PCI controller driver; loaded via udev - snd-hda-codec HD-audio codec bus driver - snd-hda-codec-* Specific HD-audio codec drivers When built as modules, snd-hda-codec (that is invoked by snd-hda-intel) looks up the codec vendor ID and loads the corresponding codec module automatically via request_module(). When built in a kernel, each codec drivers are statically hooked up before probing the PCI. This patch adds appropriate EXPORT_SYMBOL_GPL()'s and the module information for each driver, and driver-linking codes between codec-bus and codec drivers. TODO: - Avoid EXPORT_SYMBOL*() when built-in kernel - Restore __devinit appropriately depending on the condition Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.h')
-rw-r--r--sound/pci/hda/hda_codec.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 9fe0b67bb1e..586ea08b340 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -642,6 +642,16 @@ struct hda_codec_preset {
int (*patch)(struct hda_codec *codec);
};
+struct hda_codec_preset_list {
+ const struct hda_codec_preset *preset;
+ struct module *owner;
+ struct list_head list;
+};
+
+/* initial hook */
+int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
+int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);
+
/* ops set by the preset patch */
struct hda_codec_ops {
int (*build_controls)(struct hda_codec *codec);
@@ -735,6 +745,7 @@ struct hda_codec {
/* detected preset */
const struct hda_codec_preset *preset;
+ struct module *owner;
const char *name; /* codec name */
const char *modelname; /* model name for preset */