diff options
Diffstat (limited to 'sound/isa/gus/gusclassic.c')
| -rw-r--r-- | sound/isa/gus/gusclassic.c | 136 |
1 files changed, 86 insertions, 50 deletions
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c index 39cef38835ca..d1165b96fa3f 100644 --- a/sound/isa/gus/gusclassic.c +++ b/sound/isa/gus/gusclassic.c @@ -20,14 +20,15 @@ */ #include <sound/driver.h> -#include <asm/dma.h> #include <linux/init.h> +#include <linux/err.h> +#include <linux/platform_device.h> #include <linux/delay.h> #include <linux/time.h> #include <linux/moduleparam.h> +#include <asm/dma.h> #include <sound/core.h> #include <sound/gus.h> -#define SNDRV_LEGACY_AUTO_PROBE #define SNDRV_LEGACY_FIND_FREE_IRQ #define SNDRV_LEGACY_FIND_FREE_DMA #include <sound/initval.h> @@ -70,11 +71,12 @@ MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver."); module_param_array(pcm_channels, int, NULL, 0444); MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver."); -static snd_card_t *snd_gusclassic_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; +static struct platform_device *devices[SNDRV_CARDS]; + #define PFX "gusclassic: " -static int __init snd_gusclassic_detect(snd_gus_card_t * gus) +static int __init snd_gusclassic_detect(struct snd_gus_card * gus) { unsigned char d; @@ -93,7 +95,7 @@ static int __init snd_gusclassic_detect(snd_gus_card_t * gus) return 0; } -static void __init snd_gusclassic_init(int dev, snd_gus_card_t * gus) +static void __init snd_gusclassic_init(int dev, struct snd_gus_card * gus) { gus->equal_irq = 0; gus->codec_flag = 0; @@ -101,20 +103,19 @@ static void __init snd_gusclassic_init(int dev, snd_gus_card_t * gus) gus->joystick_dac = joystick_dac[dev]; } -static int __init snd_gusclassic_probe(int dev) +static int __init snd_gusclassic_probe(struct platform_device *pdev) { + int dev = pdev->id; static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; int xirq, xdma1, xdma2; - snd_card_t *card; - struct snd_gusclassic *guscard; - snd_gus_card_t *gus = NULL; + struct snd_card *card; + struct snd_gus_card *gus = NULL; int err; card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; - guscard = (struct snd_gusclassic *)card->private_data; if (pcm_channels[dev] < 2) pcm_channels[dev] = 2; @@ -143,12 +144,31 @@ static int __init snd_gusclassic_probe(int dev) } } - - if ((err = snd_gus_create(card, - port[dev], - xirq, xdma1, xdma2, - 0, channels[dev], pcm_channels[dev], - 0, &gus)) < 0) + if (port[dev] != SNDRV_AUTO_PORT) { + err = snd_gus_create(card, + port[dev], + xirq, xdma1, xdma2, + 0, channels[dev], pcm_channels[dev], + 0, &gus); + } else { + /* auto-probe legacy ports */ + static unsigned long possible_ports[] = { + 0x220, 0x230, 0x240, 0x250, 0x260, + }; + int i; + for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { + err = snd_gus_create(card, + possible_ports[i], + xirq, xdma1, xdma2, + 0, channels[dev], pcm_channels[dev], + 0, &gus); + if (err >= 0) { + port[dev] = possible_ports[i]; + break; + } + } + } + if (err < 0) goto _err; if ((err = snd_gusclassic_detect(gus)) < 0) @@ -178,13 +198,12 @@ static int __init snd_gusclassic_probe(int dev) if (dma2 >= 0) sprintf(card->longname + strlen(card->longname), "&%d", xdma2); - if ((err = snd_card_set_generic_dev(card)) < 0) - goto _err; + snd_card_set_dev(card, &pdev->dev); if ((err = snd_card_register(card)) < 0) goto _err; - snd_gusclassic_cards[dev] = card; + platform_set_drvdata(pdev, card); return 0; _err: @@ -192,53 +211,70 @@ static int __init snd_gusclassic_probe(int dev) return err; } -static int __init snd_gusclassic_legacy_auto_probe(unsigned long xport) +static int snd_gusclassic_remove(struct platform_device *devptr) { - static int dev; - int res; - - for ( ; dev < SNDRV_CARDS; dev++) { - if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT) - continue; - port[dev] = xport; - res = snd_gusclassic_probe(dev); - if (res < 0) - port[dev] = SNDRV_AUTO_PORT; - return res; - } - return -ENODEV; + snd_card_free(platform_get_drvdata(devptr)); + platform_set_drvdata(devptr, NULL); + return 0; +} + +#define GUSCLASSIC_DRIVER "snd_gusclassic" + +static struct platform_driver snd_gusclassic_driver = { + .probe = snd_gusclassic_probe, + .remove = snd_gusclassic_remove, + /* FIXME: suspend/resume */ + .driver = { + .name = GUSCLASSIC_DRIVER + }, +}; + +static void __init_or_module snd_gusclassic_unregister_all(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(devices); ++i) + platform_device_unregister(devices[i]); + platform_driver_unregister(&snd_gusclassic_driver); } static int __init alsa_card_gusclassic_init(void) { - static unsigned long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260, -1}; - int dev, cards, i; - - for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { - if (port[dev] == SNDRV_AUTO_PORT) - continue; - if (snd_gusclassic_probe(dev) >= 0) - cards++; - } - i = snd_legacy_auto_probe(possible_ports, snd_gusclassic_legacy_auto_probe); - if (i > 0) - cards += i; + int i, cards, err; + + err = platform_driver_register(&snd_gusclassic_driver); + if (err < 0) + return err; + cards = 0; + for (i = 0; i < SNDRV_CARDS && enable[i]; i++) { + struct platform_device *device; + device = platform_device_register_simple(GUSCLASSIC_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 "GUS Classic soundcard not found or device busy\n"); #endif - return -ENODEV; + err = -ENODEV; + goto errout; } return 0; + + errout: + snd_gusclassic_unregister_all(); + return err; } static void __exit alsa_card_gusclassic_exit(void) { - int idx; - - for (idx = 0; idx < SNDRV_CARDS; idx++) - snd_card_free(snd_gusclassic_cards[idx]); + snd_gusclassic_unregister_all(); } module_init(alsa_card_gusclassic_init) |