#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>
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) {
- snd_printk("specify port\n");
+ snd_printk(KERN_ERR "specify port\n");
return -EINVAL;
}
if (irq[dev] == SNDRV_AUTO_IRQ) {
- snd_printk("specify irq\n");
+ snd_printk(KERN_ERR "specify irq\n");
return -EINVAL;
}
if (dma1[dev] == SNDRV_AUTO_DMA) {
- snd_printk("specify dma1\n");
+ snd_printk(KERN_ERR "specify dma1\n");
return -EINVAL;
}
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],
dma2[dev],
CS4231_HW_DETECT,
- 0, &chip)) < 0) {
- snd_card_free(card);
- return err;
- }
+ 0, &chip)) < 0)
+ goto _err;
+ card->private_data = chip;
- if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
- snd_card_free(card);
- return err;
- }
+ if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0)
+ goto _err;
strcpy(card->driver, "CS4231");
strcpy(card->shortname, pcm->name);
if (dma2[dev] >= 0)
sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
- if ((err = snd_cs4231_mixer(chip)) < 0) {
- snd_card_free(card);
- return err;
- }
- if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) {
- snd_card_free(card);
- return err;
- }
+ if ((err = snd_cs4231_mixer(chip)) < 0)
+ goto _err;
+ if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0)
+ goto _err;
if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
mpu_irq[dev],
mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0,
NULL) < 0)
- printk(KERN_ERR "cs4231: MPU401 not detected\n");
- }
- if ((err = snd_card_register(card)) < 0) {
- snd_card_free(card);
- return err;
+ printk(KERN_WARNING "cs4231: MPU401 not detected\n");
}
- snd_cs4231_cards[dev] = card;
+
+ snd_card_set_dev(card, &pdev->dev);
+
+ if ((err = snd_card_register(card)) < 0)
+ goto _err;
+
+ platform_set_drvdata(pdev, card);
return 0;
+
+ _err:
+ snd_card_free(card);
+ return err;
+}
+
+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 i;
+
+ 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 dev, cards;
+ int i, cards, err;
+
+ err = platform_driver_register(&snd_cs4231_driver);
+ if (err < 0)
+ return err;
- for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
- if (snd_card_cs4231_probe(dev) >= 0)
- cards++;
+ cards = 0;
+ for (i = 0; i < SNDRV_CARDS; i++) {
+ struct platform_device *device;
+ if (! enable[i])
+ continue;
+ device = platform_device_register_simple(SND_CS4231_DRIVER,
+ i, NULL, 0);
+ if (IS_ERR(device))
+ continue;
+ if (!platform_get_drvdata(device)) {
+ platform_device_unregister(device);
+ continue;
+ }
+ devices[i] = device;
+ cards++;
}
if (!cards) {
#ifdef MODULE
printk(KERN_ERR "CS4231 soundcard not found or device busy\n");
#endif
+ snd_cs4231_unregister_all();
return -ENODEV;
}
return 0;
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)
git://git.onelab.eu / linux-2.6.git / blobdiff