diff options
-rw-r--r-- | sound/drivers/serial-u16550.c | 68 |
1 files changed, 45 insertions, 23 deletions
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c index ec28587247f..3381a43c592 100644 --- a/sound/drivers/serial-u16550.c +++ b/sound/drivers/serial-u16550.c @@ -33,6 +33,8 @@ #include <sound/driver.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/platform_device.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/moduleparam.h> @@ -166,8 +168,6 @@ typedef struct _snd_uart16550 { } snd_uart16550_t; -static struct snd_card *snd_serial_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; - static inline void snd_uart16550_add_timer(snd_uart16550_t *uart) { if (! uart->timer_running) { @@ -869,14 +869,12 @@ static int __init snd_uart16550_rmidi(snd_uart16550_t *uart, int device, int out return 0; } -static int __init snd_serial_probe(int dev) +static int __init snd_serial_probe(struct platform_device *devptr) { struct snd_card *card; snd_uart16550_t *uart; int err; - - if (!enable[dev]) - return -ENOENT; + int dev = devptr->id; switch (adaptor[dev]) { case SNDRV_SERIAL_SOUNDCANVAS: @@ -942,13 +940,12 @@ static int __init snd_serial_probe(int dev) adaptor_names[uart->adaptor], uart->drop_on_full); - if ((err = snd_card_set_generic_dev(card)) < 0) - goto _err; + snd_card_set_dev(card, &devptr->dev); if ((err = snd_card_register(card)) < 0) goto _err; - snd_serial_cards[dev] = card; + platform_set_drvdata(devptr, card); return 0; _err: @@ -956,33 +953,58 @@ static int __init snd_serial_probe(int dev) return err; } +static int snd_serial_remove(struct platform_device *devptr) +{ + snd_card_free(platform_get_drvdata(devptr)); + platform_set_drvdata(devptr, NULL); + return 0; +} + +#define SND_SERIAL_DRIVER "snd_serial_u16550" + +static struct platform_driver snd_serial_driver = { + .probe = snd_serial_probe, + .remove = snd_serial_remove, + .driver = { + .name = SND_SERIAL_DRIVER + }, +}; + static int __init alsa_card_serial_init(void) { - int dev = 0; - int cards = 0; + int i, cards, err; - for (dev = 0; dev < SNDRV_CARDS; dev++) { - if (snd_serial_probe(dev) == 0) - cards++; - } + if ((err = platform_driver_register(&snd_serial_driver)) < 0) + return err; - if (cards == 0) { + cards = 0; + for (i = 0; i < SNDRV_CARDS && enable[i]; i++) { + struct platform_device *device; + device = platform_device_register_simple(SND_SERIAL_DRIVER, + i, NULL, 0); + if (IS_ERR(device)) { + err = PTR_ERR(device); + goto errout; + } + cards++; + } + if (! cards) { #ifdef MODULE printk(KERN_ERR "serial midi soundcard not found or device busy\n"); #endif - return -ENODEV; + err = -ENODEV; + goto errout; } return 0; + + errout: + platform_driver_unregister(&snd_serial_driver); + return err; } static void __exit alsa_card_serial_exit(void) { - int dev; - - for (dev = 0; dev < SNDRV_CARDS; dev++) { - if (snd_serial_cards[dev] != NULL) - snd_card_free(snd_serial_cards[dev]); - } + platform_driver_unregister(&snd_serial_driver); } module_init(alsa_card_serial_init) |