diff options
Diffstat (limited to 'sound/isa/cs423x/cs4231.c')
| -rw-r--r-- | sound/isa/cs423x/cs4231.c | 110 |
1 files changed, 90 insertions, 20 deletions
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c index 9be5416bcb9..ab67b5c2590 100644 --- a/sound/isa/cs423x/cs4231.c +++ b/sound/isa/cs423x/cs4231.c @@ -22,6 +22,8 @@ #include <sound/driver.h> #include <linux/init.h> +#include <linux/err.h> +#include <linux/platform_device.h> #include <linux/time.h> #include <linux/wait.h> #include <linux/moduleparam.h> @@ -64,15 +66,15 @@ MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver."); module_param_array(dma2, int, NULL, 0444); MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver."); -static snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; +static struct platform_device *devices[SNDRV_CARDS]; -static int __init snd_card_cs4231_probe(int dev) +static int __init snd_cs4231_probe(struct platform_device *pdev) { - snd_card_t *card; - struct snd_card_cs4231 *acard; - snd_pcm_t *pcm = NULL; - cs4231_t *chip; + int dev = pdev->id; + struct snd_card *card; + struct snd_pcm *pcm; + struct snd_cs4231 *chip; int err; if (port[dev] == SNDRV_AUTO_PORT) { @@ -90,7 +92,6 @@ static int __init snd_card_cs4231_probe(int dev) card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; - acard = (struct snd_card_cs4231 *)card->private_data; if ((err = snd_cs4231_create(card, port[dev], -1, irq[dev], dma1[dev], @@ -98,6 +99,7 @@ static int __init snd_card_cs4231_probe(int dev) CS4231_HW_DETECT, 0, &chip)) < 0) goto _err; + card->private_data = chip; if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) goto _err; @@ -125,12 +127,12 @@ static int __init snd_card_cs4231_probe(int dev) printk(KERN_WARNING "cs4231: MPU401 not detected\n"); } - 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_cs4231_cards[dev] = card; + + platform_set_drvdata(pdev, card); return 0; _err: @@ -138,29 +140,97 @@ static int __init snd_card_cs4231_probe(int dev) return err; } -static int __init alsa_card_cs4231_init(void) +static int __devexit snd_cs4231_remove(struct platform_device *devptr) +{ + snd_card_free(platform_get_drvdata(devptr)); + platform_set_drvdata(devptr, NULL); + return 0; +} + +#ifdef CONFIG_PM +static int snd_cs4231_suspend(struct platform_device *dev, pm_message_t state) +{ + struct snd_card *card; + struct snd_cs4231 *chip; + card = platform_get_drvdata(dev); + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + chip = card->private_data; + chip->suspend(chip); + return 0; +} + +static int snd_cs4231_resume(struct platform_device *dev) +{ + struct snd_card *card; + struct snd_cs4231 *chip; + card = platform_get_drvdata(dev); + chip = card->private_data; + chip->resume(chip); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return 0; +} +#endif + +#define SND_CS4231_DRIVER "snd_cs4231" + +static struct platform_driver snd_cs4231_driver = { + .probe = snd_cs4231_probe, + .remove = __devexit_p(snd_cs4231_remove), +#ifdef CONFIG_PM + .suspend = snd_cs4231_suspend, + .resume = snd_cs4231_resume, +#endif + .driver = { + .name = SND_CS4231_DRIVER + }, +}; + +static void __init_or_module snd_cs4231_unregister_all(void) { - int dev, cards; + int i; - for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { - if (snd_card_cs4231_probe(dev) >= 0) - cards++; + for (i = 0; i < ARRAY_SIZE(devices); ++i) + platform_device_unregister(devices[i]); + platform_driver_unregister(&snd_cs4231_driver); +} + +static int __init alsa_card_cs4231_init(void) +{ + int i, cards, err; + + err = platform_driver_register(&snd_cs4231_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(SND_CS4231_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 "CS4231 soundcard not found or device busy\n"); #endif - return -ENODEV; + err = -ENODEV; + goto errout; } return 0; + + errout: + snd_cs4231_unregister_all(); + return err; } static void __exit alsa_card_cs4231_exit(void) { - int idx; - - for (idx = 0; idx < SNDRV_CARDS; idx++) - snd_card_free(snd_cs4231_cards[idx]); + snd_cs4231_unregister_all(); } module_init(alsa_card_cs4231_init) |