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Diffstat (limited to 'sound/drivers/virmidi.c')
-rw-r--r--sound/drivers/virmidi.c92
1 files changed, 63 insertions, 29 deletions
diff --git a/sound/drivers/virmidi.c b/sound/drivers/virmidi.c
index af12185ab8a..4258723de2a 100644
--- a/sound/drivers/virmidi.c
+++ b/sound/drivers/virmidi.c
@@ -45,6 +45,8 @@
#include <linux/init.h>
#include <linux/wait.h>
#include <linux/sched.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/seq_kernel.h>
@@ -59,7 +61,7 @@ MODULE_DESCRIPTION("Dummy soundcard for virtual rawmidi devices");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{ALSA,Virtual rawmidi device}}");
-#define MAX_MIDI_DEVICES 8
+#define MAX_MIDI_DEVICES 4
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
@@ -73,24 +75,23 @@ MODULE_PARM_DESC(id, "ID string for virmidi soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable this soundcard.");
module_param_array(midi_devs, int, NULL, 0444);
-MODULE_PARM_DESC(midi_devs, "MIDI devices # (1-8)");
+MODULE_PARM_DESC(midi_devs, "MIDI devices # (1-4)");
-typedef struct snd_card_virmidi {
- snd_card_t *card;
- snd_rawmidi_t *midi[MAX_MIDI_DEVICES];
-} snd_card_virmidi_t;
+struct snd_card_virmidi {
+ struct snd_card *card;
+ struct snd_rawmidi *midi[MAX_MIDI_DEVICES];
+};
-static snd_card_t *snd_virmidi_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+static struct platform_device *devices[SNDRV_CARDS];
-static int __init snd_card_virmidi_probe(int dev)
+static int __init snd_virmidi_probe(struct platform_device *devptr)
{
- snd_card_t *card;
+ struct snd_card *card;
struct snd_card_virmidi *vmidi;
int idx, err;
+ int dev = devptr->id;
- if (!enable[dev])
- return -ENODEV;
card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_virmidi));
if (card == NULL)
@@ -103,8 +104,8 @@ static int __init snd_card_virmidi_probe(int dev)
midi_devs[dev] = MAX_MIDI_DEVICES;
}
for (idx = 0; idx < midi_devs[dev]; idx++) {
- snd_rawmidi_t *rmidi;
- snd_virmidi_dev_t *rdev;
+ struct snd_rawmidi *rmidi;
+ struct snd_virmidi_dev *rdev;
if ((err = snd_virmidi_new(card, idx, &rmidi)) < 0)
goto __nodev;
rdev = rmidi->private_data;
@@ -117,11 +118,10 @@ static int __init snd_card_virmidi_probe(int dev)
strcpy(card->shortname, "VirMIDI");
sprintf(card->longname, "Virtual MIDI Card %i", dev + 1);
- if ((err = snd_card_set_generic_dev(card)) < 0)
- goto __nodev;
+ snd_card_set_dev(card, &devptr->dev);
if ((err = snd_card_register(card)) == 0) {
- snd_virmidi_cards[dev] = card;
+ platform_set_drvdata(devptr, card);
return 0;
}
__nodev:
@@ -129,34 +129,68 @@ static int __init snd_card_virmidi_probe(int dev)
return err;
}
-static int __init alsa_card_virmidi_init(void)
+static int snd_virmidi_remove(struct platform_device *devptr)
{
- int dev, cards;
+ snd_card_free(platform_get_drvdata(devptr));
+ platform_set_drvdata(devptr, NULL);
+ return 0;
+}
- for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
- if (snd_card_virmidi_probe(dev) < 0) {
-#ifdef MODULE
- printk(KERN_ERR "Card-VirMIDI #%i not found or device busy\n", dev + 1);
-#endif
- break;
+#define SND_VIRMIDI_DRIVER "snd_virmidi"
+
+static struct platform_driver snd_virmidi_driver = {
+ .probe = snd_virmidi_probe,
+ .remove = snd_virmidi_remove,
+ .driver = {
+ .name = SND_VIRMIDI_DRIVER
+ },
+};
+
+static void __init_or_module snd_virmidi_unregister_all(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(devices); ++i)
+ platform_device_unregister(devices[i]);
+ platform_driver_unregister(&snd_virmidi_driver);
+}
+
+static int __init alsa_card_virmidi_init(void)
+{
+ int i, cards, err;
+
+ if ((err = platform_driver_register(&snd_virmidi_driver)) < 0)
+ return err;
+
+ cards = 0;
+ for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
+ struct platform_device *device;
+ device = platform_device_register_simple(SND_VIRMIDI_DRIVER,
+ i, NULL, 0);
+ if (IS_ERR(device)) {
+ err = PTR_ERR(device);
+ goto errout;
}
+ devices[i] = device;
cards++;
}
if (!cards) {
#ifdef MODULE
printk(KERN_ERR "Card-VirMIDI soundcard not found or device busy\n");
#endif
- return -ENODEV;
+ err = -ENODEV;
+ goto errout;
}
return 0;
+
+ errout:
+ snd_virmidi_unregister_all();
+ return err;
}
static void __exit alsa_card_virmidi_exit(void)
{
- int dev;
-
- for (dev = 0; dev < SNDRV_CARDS; dev++)
- snd_card_free(snd_virmidi_cards[dev]);
+ snd_virmidi_unregister_all();
}
module_init(alsa_card_virmidi_init)