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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>
Este cometimento está contido em:
Takashi Iwai
2008-11-27 15:47:11 +01:00
ascendente 30d72e9f61
cometimento 1289e9e8b4
18 ficheiros modificados com 528 adições e 109 eliminações

Ver ficheiro

@@ -27,7 +27,6 @@
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_patch.h"
struct atihdmi_spec {
struct hda_multi_out multiout;
@@ -187,7 +186,7 @@ static int patch_atihdmi(struct hda_codec *codec)
/*
* patch entries
*/
struct hda_codec_preset snd_hda_preset_atihdmi[] = {
static struct hda_codec_preset snd_hda_preset_atihdmi[] = {
{ .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
{ .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
{ .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
@@ -196,3 +195,31 @@ struct hda_codec_preset snd_hda_preset_atihdmi[] = {
{ .id = 0x17e80047, .name = "Chrontel HDMI", .patch = patch_atihdmi },
{} /* terminator */
};
MODULE_ALIAS("snd-hda-codec-id:1002793c");
MODULE_ALIAS("snd-hda-codec-id:10027919");
MODULE_ALIAS("snd-hda-codec-id:1002791a");
MODULE_ALIAS("snd-hda-codec-id:1002aa01");
MODULE_ALIAS("snd-hda-codec-id:10951390");
MODULE_ALIAS("snd-hda-codec-id:17e80047");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ATI HDMI HD-audio codec");
static struct hda_codec_preset_list atihdmi_list = {
.preset = snd_hda_preset_atihdmi,
.owner = THIS_MODULE,
};
static int __init patch_atihdmi_init(void)
{
return snd_hda_add_codec_preset(&atihdmi_list);
}
static void __exit patch_atihdmi_exit(void)
{
snd_hda_delete_codec_preset(&atihdmi_list);
}
module_init(patch_atihdmi_init)
module_exit(patch_atihdmi_exit)