mirror of https://gitee.com/openkylin/linux.git
[ALSA] es1688 - Use platform_device
Modules: ES1688 driver Rewrite the probe/remove with platform_device. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
Jaroslav Kysela
parent
277e926c9b
commit
2a571ed13c
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@ -20,16 +20,17 @@
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*/
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#include <sound/driver.h>
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#include <asm/dma.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/time.h>
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#include <linux/wait.h>
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#include <linux/moduleparam.h>
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#include <asm/dma.h>
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#include <sound/core.h>
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#include <sound/es1688.h>
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#include <sound/mpu401.h>
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#include <sound/opl3.h>
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#define SNDRV_LEGACY_AUTO_PROBE
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#define SNDRV_LEGACY_FIND_FREE_IRQ
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#define SNDRV_LEGACY_FIND_FREE_DMA
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#include <sound/initval.h>
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@ -68,12 +69,11 @@ MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for ESx688 driver.");
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module_param_array(dma8, int, NULL, 0444);
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MODULE_PARM_DESC(dma8, "8-bit DMA # for ESx688 driver.");
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static struct snd_card *snd_audiodrive_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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#define PFX "es1688: "
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static int __init snd_audiodrive_probe(int dev)
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static int __init snd_es1688_probe(struct platform_device *pdev)
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{
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int dev = pdev->id;
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static int possible_irqs[] = {5, 9, 10, 7, -1};
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static int possible_dmas[] = {1, 3, 0, -1};
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int xirq, xdma, xmpu_irq;
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@ -105,10 +105,30 @@ static int __init snd_audiodrive_probe(int dev)
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}
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}
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if ((err = snd_es1688_create(card, port[dev], mpu_port[dev],
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xirq, xmpu_irq, xdma,
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ES1688_HW_AUTO, &chip)) < 0)
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goto _err;
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if (port[dev] != SNDRV_AUTO_PORT) {
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if ((err = snd_es1688_create(card, port[dev], mpu_port[dev],
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xirq, xmpu_irq, xdma,
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ES1688_HW_AUTO, &chip)) < 0)
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goto _err;
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} else {
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/* auto-probe legacy ports */
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static unsigned long possible_ports[] = {
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0x220, 0x240, 0x260,
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};
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int i;
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for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
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err = snd_es1688_create(card, possible_ports[i],
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mpu_port[dev],
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xirq, xmpu_irq, xdma,
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ES1688_HW_AUTO, &chip);
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if (err >= 0) {
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port[dev] = possible_ports[i];
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break;
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}
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}
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if (i >= ARRAY_SIZE(possible_ports))
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goto _err;
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}
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if ((err = snd_es1688_pcm(chip, 0, &pcm)) < 0)
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goto _err;
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@ -136,13 +156,12 @@ static int __init snd_audiodrive_probe(int dev)
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goto _err;
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}
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if ((err = snd_card_set_generic_dev(card)) < 0)
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goto _err;
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snd_card_set_dev(card, &pdev->dev);
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if ((err = snd_card_register(card)) < 0)
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goto _err;
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snd_audiodrive_cards[dev] = card;
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platform_set_drvdata(pdev, card);
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return 0;
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_err:
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@ -150,53 +169,60 @@ static int __init snd_audiodrive_probe(int dev)
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return err;
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}
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static int __init snd_audiodrive_legacy_auto_probe(unsigned long xport)
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static int snd_es1688_remove(struct platform_device *devptr)
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{
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static int dev;
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int res;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
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continue;
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port[dev] = xport;
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res = snd_audiodrive_probe(dev);
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if (res < 0)
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port[dev] = SNDRV_AUTO_PORT;
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return res;
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}
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return -ENODEV;
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snd_card_free(platform_get_drvdata(devptr));
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platform_set_drvdata(devptr, NULL);
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return 0;
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}
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#define ES1688_DRIVER "snd_es1688"
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static struct platform_driver snd_es1688_driver = {
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.probe = snd_es1688_probe,
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.remove = snd_es1688_remove,
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/* FIXME: suspend/resume */
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.driver = {
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.name = ES1688_DRIVER
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},
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};
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static int __init alsa_card_es1688_init(void)
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{
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static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
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int dev, cards = 0, i;
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int i, cards, err;
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for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
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if (port[dev] == SNDRV_AUTO_PORT)
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continue;
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if (snd_audiodrive_probe(dev) >= 0)
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cards++;
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err = platform_driver_register(&snd_es1688_driver);
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if (err < 0)
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return err;
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cards = 0;
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for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
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struct platform_device *device;
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device = platform_device_register_simple(ES1688_DRIVER,
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i, NULL, 0);
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if (IS_ERR(device)) {
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err = PTR_ERR(device);
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goto errout;
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}
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cards++;
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}
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i = snd_legacy_auto_probe(possible_ports, snd_audiodrive_legacy_auto_probe);
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if (i > 0)
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cards += i;
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if (!cards) {
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#ifdef MODULE
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printk(KERN_ERR "ESS AudioDrive ES1688 soundcard not found or device busy\n");
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#endif
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return -ENODEV;
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err = -ENODEV;
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goto errout;
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}
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return 0;
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errout:
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platform_driver_unregister(&snd_es1688_driver);
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return err;
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}
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static void __exit alsa_card_es1688_exit(void)
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{
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int idx;
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for (idx = 0; idx < SNDRV_CARDS; idx++)
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snd_card_free(snd_audiodrive_cards[idx]);
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platform_driver_unregister(&snd_es1688_driver);
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}
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module_init(alsa_card_es1688_init)
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