[ALSA] cmi8330 - Use platform_device, add PM support
Modules: CMI8330 driver Rewrite the probe/remove with platform_device. Also, add the PM support. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
Jaroslav Kysela
parent
175cdcfb11
commit
acdcbc1542
1 changed files with 168 additions and 83 deletions
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@ -45,6 +45,8 @@
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#include <sound/driver.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/slab.h>
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#include <linux/pnp.h>
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#include <linux/moduleparam.h>
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@ -156,8 +158,6 @@ struct snd_cmi8330 {
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} streams[2];
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};
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static struct snd_card *snd_cmi8330_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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#ifdef CONFIG_PNP
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static struct pnp_card_device_id snd_cmi8330_pnpids[] = {
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@ -429,6 +429,31 @@ static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *
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}
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#ifdef CONFIG_PM
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static int snd_cmi8330_suspend(struct snd_card *card)
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{
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struct snd_cmi8330 *acard = card->private_data;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(acard->pcm);
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acard->wss->suspend(acard->wss);
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snd_sbmixer_suspend(acard->sb);
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return 0;
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}
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static int snd_cmi8330_resume(struct snd_card *card)
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{
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struct snd_cmi8330 *acard = card->private_data;
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snd_sbdsp_reset(acard->sb);
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snd_sbmixer_suspend(acard->sb);
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acard->wss->resume(acard->wss);
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snd_power_change_state(card, SNDRV_CTL_POWER_D0);
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return 0;
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}
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#endif
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/*
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*/
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@ -440,44 +465,28 @@ static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *
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#define PFX "cmi8330: "
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static int __devinit snd_cmi8330_probe(int dev,
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struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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static struct snd_card *snd_cmi8330_card_new(int dev)
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{
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struct snd_card *card;
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struct snd_cmi8330 *acard;
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int i, err;
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if (! is_isapnp_selected(dev)) {
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if (wssport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR PFX "specify wssport\n");
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return -EINVAL;
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}
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if (sbport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR PFX "specify sbport\n");
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return -EINVAL;
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}
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}
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card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_cmi8330));
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if (card == NULL) {
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snd_printk(KERN_ERR PFX "could not get a new card\n");
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return -ENOMEM;
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return NULL;
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}
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acard = (struct snd_cmi8330 *)card->private_data;
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acard = card->private_data;
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acard->card = card;
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return card;
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}
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#ifdef CONFIG_PNP
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if (isapnp[dev]) {
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if ((err = snd_cmi8330_pnp(dev, acard, pcard, pid)) < 0) {
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snd_printk(KERN_ERR PFX "PnP detection failed\n");
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goto _err;
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}
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snd_card_set_dev(card, &pcard->card->dev);
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}
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#endif
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static int __devinit snd_cmi8330_probe(struct snd_card *card, int dev)
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{
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struct snd_cmi8330 *acard;
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int i, err;
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acard = card->private_data;
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if ((err = snd_ad1848_create(card,
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wssport[dev] + 4,
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wssirq[dev],
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@ -485,12 +494,11 @@ static int __devinit snd_cmi8330_probe(int dev,
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AD1848_HW_DETECT,
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&acard->wss)) < 0) {
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snd_printk(KERN_ERR PFX "(AD1848) device busy??\n");
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goto _err;
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return err;
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}
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if (acard->wss->hardware != AD1848_HW_CMI8330) {
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snd_printk(KERN_ERR PFX "(AD1848) not found during probe\n");
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err = -ENODEV;
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goto _err;
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return -ENODEV;
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}
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if ((err = snd_sbdsp_create(card, sbport[dev],
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@ -500,11 +508,11 @@ static int __devinit snd_cmi8330_probe(int dev,
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sbdma16[dev],
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SB_HW_AUTO, &acard->sb)) < 0) {
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snd_printk(KERN_ERR PFX "(SB16) device busy??\n");
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goto _err;
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return err;
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}
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if (acard->sb->hardware != SB_HW_16) {
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snd_printk(KERN_ERR PFX "(SB16) not found during probe\n");
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goto _err;
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return err;
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}
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snd_ad1848_out(acard->wss, AD1848_MISC_INFO, 0x40); /* switch on MODE2 */
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@ -513,12 +521,12 @@ static int __devinit snd_cmi8330_probe(int dev,
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if ((err = snd_cmi8330_mixer(card, acard)) < 0) {
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snd_printk(KERN_ERR PFX "failed to create mixers\n");
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goto _err;
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return err;
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}
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if ((err = snd_cmi8330_pcm(card, acard)) < 0) {
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snd_printk(KERN_ERR PFX "failed to create pcms\n");
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goto _err;
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return err;
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}
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strcpy(card->driver, "CMI8330/C3D");
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@ -529,79 +537,162 @@ static int __devinit snd_cmi8330_probe(int dev,
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wssirq[dev],
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wssdma[dev]);
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if ((err = snd_card_set_generic_dev(card)) < 0)
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goto _err;
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if ((err = snd_card_register(card)) < 0)
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goto _err;
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if (pcard)
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pnp_set_card_drvdata(pcard, card);
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else
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snd_cmi8330_legacy[dev] = card;
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return 0;
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_err:
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snd_card_free(card);
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return err;
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return snd_card_register(card);
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}
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static int __init snd_cmi8330_nonpnp_probe(struct platform_device *pdev)
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{
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struct snd_card *card;
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int err;
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int dev = pdev->id;
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if (wssport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR PFX "specify wssport\n");
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return -EINVAL;
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}
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if (sbport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR PFX "specify sbport\n");
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return -EINVAL;
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}
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card = snd_cmi8330_card_new(dev);
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if (! card)
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return -ENOMEM;
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snd_card_set_dev(card, &pdev->dev);
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if ((err = snd_cmi8330_probe(card, dev)) < 0) {
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snd_card_free(card);
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return err;
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}
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platform_set_drvdata(pdev, card);
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return 0;
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}
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static int snd_cmi8330_nonpnp_remove(struct platform_device *devptr)
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{
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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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#ifdef CONFIG_PM
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static int snd_cmi8330_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
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{
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return snd_cmi8330_suspend(platform_get_drvdata(dev));
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}
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static int snd_cmi8330_nonpnp_resume(struct platform_device *dev)
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{
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return snd_cmi8330_resume(platform_get_drvdata(dev));
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}
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#endif
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#define CMI8330_DRIVER "snd_cmi8330"
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static struct platform_driver snd_cmi8330_driver = {
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.probe = snd_cmi8330_nonpnp_probe,
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.remove = snd_cmi8330_nonpnp_remove,
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#ifdef CONFIG_PM
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.suspend = snd_cmi8330_nonpnp_suspend,
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.resume = snd_cmi8330_nonpnp_resume,
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#endif
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.driver = {
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.name = CMI8330_DRIVER
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},
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};
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#ifdef CONFIG_PNP
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static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *card,
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const struct pnp_card_device_id *id)
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static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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{
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static int dev;
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struct snd_card *card;
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int res;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev] || !isapnp[dev])
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continue;
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res = snd_cmi8330_probe(dev, card, id);
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if (res < 0)
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return res;
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dev++;
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return 0;
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if (enable[dev] && isapnp[dev])
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break;
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}
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return -ENODEV;
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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card = snd_cmi8330_card_new(dev);
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if (! card)
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return -ENOMEM;
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if ((res = snd_cmi8330_pnp(dev, card->private_data, pcard, pid)) < 0) {
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snd_printk(KERN_ERR PFX "PnP detection failed\n");
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snd_card_free(card);
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return res;
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}
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snd_card_set_dev(card, &pcard->card->dev);
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if ((res = snd_cmi8330_probe(card, dev)) < 0) {
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snd_card_free(card);
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return res;
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}
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pnp_set_card_drvdata(pcard, card);
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dev++;
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return 0;
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}
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static void __devexit snd_cmi8330_pnp_remove(struct pnp_card_link * pcard)
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{
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struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
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snd_card_disconnect(card);
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snd_card_free_in_thread(card);
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snd_card_free(pnp_get_card_drvdata(pcard));
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pnp_set_card_drvdata(pcard, NULL);
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}
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#ifdef CONFIG_PM
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static int snd_cmi8330_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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return snd_cmi8330_suspend(pnp_get_card_drvdata(pcard));
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}
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static int snd_cmi8330_pnp_resume(struct pnp_card_link *pcard)
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{
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return snd_cmi8330_resume(pnp_get_card_drvdata(pcard));
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}
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#endif
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static struct pnp_card_driver cmi8330_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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.name = "cmi8330",
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.id_table = snd_cmi8330_pnpids,
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.probe = snd_cmi8330_pnp_detect,
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.remove = __devexit_p(snd_cmi8330_pnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_cmi8330_pnp_suspend,
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.resume = snd_cmi8330_pnp_resume,
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#endif
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};
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#endif /* CONFIG_PNP */
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static int __init alsa_card_cmi8330_init(void)
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{
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int dev, cards = 0;
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int i, err, cards = 0;
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for (dev = 0; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev])
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if ((err = platform_driver_register(&snd_cmi8330_driver)) < 0)
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return err;
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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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if (is_isapnp_selected(i))
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continue;
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if (is_isapnp_selected(dev))
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continue;
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if (snd_cmi8330_probe(dev, NULL, NULL) >= 0)
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cards++;
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device = platform_device_register_simple(CMI8330_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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platform_driver_unregister(&snd_cmi8330_driver);
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return err;
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}
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cards++;
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}
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#ifdef CONFIG_PNP
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cards += pnp_register_card_driver(&cmi8330_pnpc_driver);
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#endif
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err = pnp_register_card_driver(&cmi8330_pnpc_driver);
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if (err > 0)
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cards += err;
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if (!cards) {
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#ifdef CONFIG_PNP
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pnp_unregister_card_driver(&cmi8330_pnpc_driver);
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#endif
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platform_driver_unregister(&snd_cmi8330_driver);
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#ifdef MODULE
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snd_printk(KERN_ERR "CMI8330 not found or device busy\n");
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#endif
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@ -612,14 +703,8 @@ static int __init alsa_card_cmi8330_init(void)
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static void __exit alsa_card_cmi8330_exit(void)
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{
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int i;
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#ifdef CONFIG_PNP
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/* PnP cards first */
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pnp_unregister_card_driver(&cmi8330_pnpc_driver);
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#endif
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for (i = 0; i < SNDRV_CARDS; i++)
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snd_card_free(snd_cmi8330_legacy[i]);
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platform_driver_unregister(&snd_cmi8330_driver);
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}
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module_init(alsa_card_cmi8330_init)
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