ALSA: seq: Define driver object in each driver

This patch moves the driver object initialization and allocation to
each driver's module init/exit code like other normal drivers.  The
snd_seq_driver struct is now published in seq_device.h, and each
driver is responsible to define it with proper driver attributes
(name, probe and remove) with snd_seq_driver specific attributes as id
and argsize fields.  The helper functions snd_seq_driver_register(),
snd_seq_driver_unregister() and module_snd_seq_driver() are used for
simplifying codes.

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

1 files changed, 15 insertions, 20 deletions

diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
index 72332dfada9a..4aa719cad331 100644
--- a/sound/isa/sb/emu8000_synth.c
+++ b/sound/isa/sb/emu8000_synth.c
@@ -34,8 +34,9 @@ MODULE_LICENSE("GPL");
 /*
  * create a new hardware dependent device for Emu8000
  */
-static int snd_emu8000_new_device(struct snd_seq_device *dev)
+static int snd_emu8000_probe(struct device *_dev)
 {
+        struct snd_seq_device *dev = to_seq_dev(_dev);
         struct snd_emu8000 *hw;
         struct snd_emux *emu;
 
@@ -93,8 +94,9 @@ static int snd_emu8000_new_device(struct snd_seq_device *dev)
 /*
  * free all resources
  */
-static int snd_emu8000_delete_device(struct snd_seq_device *dev)
+static int snd_emu8000_remove(struct device *_dev)
 {
+        struct snd_seq_device *dev = to_seq_dev(_dev);
         struct snd_emu8000 *hw;
 
         if (dev->driver_data == NULL)
@@ -114,21 +116,14 @@ static int snd_emu8000_delete_device(struct snd_seq_device *dev)
  *  INIT part
  */
 
-static int __init alsa_emu8000_init(void)
-{
-        
-        static struct snd_seq_dev_ops ops = {
-                snd_emu8000_new_device,
-                snd_emu8000_delete_device,
-        };
-        return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops,
-                                              sizeof(struct snd_emu8000*));
-}
-
-static void __exit alsa_emu8000_exit(void)
-{
-        snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_EMU8000);
-}
-
-module_init(alsa_emu8000_init)
-module_exit(alsa_emu8000_exit)
+static struct snd_seq_driver emu8000_driver = {
+        .driver = {
+                .name = KBUILD_MODNAME,
+                .probe = snd_emu8000_probe,
+                .remove = snd_emu8000_remove,
+        },
+        .id = SNDRV_SEQ_DEV_ID_EMU8000,
+        .argsize = sizeof(struct snd_emu8000 *),
+};
+
+module_snd_seq_driver(emu8000_driver);