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https://github.com/edk2-porting/linux-next.git
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[ALSA] cs4236 - Use platform_device
Modules: CS4236+ 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
8b91375736
commit
6bba41ac97
@ -21,6 +21,8 @@
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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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@ -123,6 +125,7 @@ module_param_array(dma2, int, NULL, 0444);
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MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
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struct snd_card_cs4236 {
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struct snd_cs4231 *chip;
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struct resource *res_sb_port;
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#ifdef CONFIG_PNP
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struct pnp_dev *wss;
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@ -131,8 +134,6 @@ struct snd_card_cs4236 {
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#endif
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};
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static struct snd_card *snd_cs4236_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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#ifdef CONFIG_PNP
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#define ISAPNP_CS4232(_va, _vb, _vc, _device, _wss, _ctrl, _mpu401) \
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@ -158,6 +159,8 @@ static struct snd_card *snd_cs4236_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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#ifdef CS4232
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#define CS423X_DRIVER "snd_cs4232"
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#define CS423X_ISAPNP_DRIVER "cs4232_isapnp"
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static struct pnp_card_device_id snd_cs423x_pnpids[] = {
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/* Philips PCA70PS */
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{ .id = "CSC0d32", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
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@ -177,6 +180,8 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
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{ .id = "" } /* end */
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};
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#else /* CS4236 */
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#define CS423X_DRIVER "snd_cs4236"
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#define CS423X_ISAPNP_DRIVER "cs4236_isapnp"
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static struct pnp_card_device_id snd_cs423x_pnpids[] = {
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/* Intel Marlin Spike Motherboard - CS4235 */
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{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
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@ -375,60 +380,44 @@ static int __devinit snd_card_cs4236_pnp(int dev, struct snd_card_cs4236 *acard,
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}
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#endif /* CONFIG_PNP */
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static void snd_card_cs4236_free(struct snd_card *card)
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{
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struct snd_card_cs4236 *acard = (struct snd_card_cs4236 *)card->private_data;
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if (acard)
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release_and_free_resource(acard->res_sb_port);
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}
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#ifdef CONFIG_PNP
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#define is_isapnp_selected(dev) isapnp[dev]
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#else
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#define is_isapnp_selected(dev) 0
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#endif
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static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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static void snd_card_cs4236_free(struct snd_card *card)
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{
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struct snd_card_cs4236 *acard = card->private_data;
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release_and_free_resource(acard->res_sb_port);
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}
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static struct snd_card *snd_cs423x_card_new(int dev)
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{
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struct snd_card *card;
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card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_cs4236));
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if (card == NULL)
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return NULL;
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card->private_free = snd_card_cs4236_free;
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return card;
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}
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static int __devinit snd_cs423x_probe(struct snd_card *card, int dev)
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{
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struct snd_card_cs4236 *acard;
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struct snd_pcm *pcm = NULL;
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struct snd_pcm *pcm;
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struct snd_cs4231 *chip;
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struct snd_opl3 *opl3;
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int err;
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if (! is_isapnp_selected(dev)) {
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if (port[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR "specify port\n");
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return -EINVAL;
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}
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if (cport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR "specify cport\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_card_cs4236));
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if (card == NULL)
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return -ENOMEM;
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acard = (struct snd_card_cs4236 *)card->private_data;
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card->private_free = snd_card_cs4236_free;
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#ifdef CONFIG_PNP
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if (isapnp[dev]) {
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if ((err = snd_card_cs4236_pnp(dev, acard, pcard, pid))<0) {
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printk(KERN_ERR "isapnp detection failed and probing for " IDENT " is not supported\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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acard = card->private_data;
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if (sb_port[dev] > 0 && sb_port[dev] != SNDRV_AUTO_PORT)
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if ((acard->res_sb_port = request_region(sb_port[dev], 16, IDENT " SB")) == NULL) {
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printk(KERN_ERR IDENT ": unable to register SB port at 0x%lx\n", sb_port[dev]);
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err = -EBUSY;
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goto _err;
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return -EBUSY;
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}
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#ifdef CS4232
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@ -441,13 +430,14 @@ static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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CS4231_HW_DETECT,
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0,
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&chip)) < 0)
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goto _err;
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return err;
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acard->chip = chip;
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if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0)
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goto _err;
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return err;
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if ((err = snd_cs4231_mixer(chip)) < 0)
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goto _err;
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return err;
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#else /* CS4236 */
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if ((err = snd_cs4236_create(card,
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@ -459,13 +449,14 @@ static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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CS4231_HW_DETECT,
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0,
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&chip)) < 0)
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goto _err;
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return err;
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acard->chip = chip;
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if ((err = snd_cs4236_pcm(chip, 0, &pcm)) < 0)
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goto _err;
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return err;
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if ((err = snd_cs4236_mixer(chip)) < 0)
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goto _err;
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return err;
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#endif
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strcpy(card->driver, pcm->name);
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strcpy(card->shortname, pcm->name);
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@ -478,7 +469,7 @@ static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
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if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0)
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goto _err;
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return err;
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if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
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if (snd_opl3_create(card,
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@ -487,7 +478,7 @@ static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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printk(KERN_WARNING IDENT ": OPL3 not detected\n");
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} else {
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if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
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goto _err;
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return err;
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}
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}
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@ -501,77 +492,175 @@ static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
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printk(KERN_WARNING IDENT ": MPU401 not detected\n");
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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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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_cs4236_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_cs423x_nonpnp_probe(struct platform_device *pdev)
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{
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int dev = pdev->id;
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struct snd_card *card;
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int err;
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if (port[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR "specify port\n");
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return -EINVAL;
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}
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if (cport[dev] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR "specify cport\n");
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return -EINVAL;
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}
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card = snd_cs423x_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_cs423x_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 __devexit snd_cs423x_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_cs423x_suspend(struct snd_card *card)
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{
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struct snd_card_cs4236 *acard = card->private_data;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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acard->chip->suspend(acard->chip);
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return 0;
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}
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static int snd_cs423x_resume(struct snd_card *card)
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{
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struct snd_card_cs4236 *acard = card->private_data;
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acard->chip->resume(acard->chip);
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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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static int snd_cs423x_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
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{
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return snd_cs423x_suspend(platform_get_drvdata(dev));
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}
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static int snd_cs423x_nonpnp_resume(struct platform_device *dev)
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{
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return snd_cs423x_resume(platform_get_drvdata(dev));
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}
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#endif
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static struct platform_driver snd_cs423x_nonpnp_driver = {
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.probe = snd_cs423x_nonpnp_probe,
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.remove = __devexit_p(snd_cs423x_nonpnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_cs423x_nonpnp_suspend,
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.resume = snd_cs423x_nonpnp_resume,
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#endif
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.driver = {
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.name = CS423X_DRIVER
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},
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};
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#ifdef CONFIG_PNP
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static int __devinit snd_cs423x_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_cs423x_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_card_cs423x_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_cs423x_card_new(dev);
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if (! card)
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return -ENOMEM;
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if ((res = snd_card_cs4236_pnp(dev, card->private_data, pcard, pid))<0) {
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printk(KERN_ERR "isapnp detection failed and probing for " IDENT " is not supported\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_cs423x_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_cs423x_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_cs423x_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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return snd_cs423x_suspend(pnp_get_card_drvdata(pcard));
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}
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static int snd_cs423x_pnp_resume(struct pnp_card_link *pcard)
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{
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return snd_cs423x_resume(pnp_get_card_drvdata(pcard));
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}
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#endif
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static struct pnp_card_driver cs423x_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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.name = "cs423x",
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.name = CS423X_ISAPNP_DRIVER,
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.id_table = snd_cs423x_pnpids,
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.probe = snd_cs423x_pnp_detect,
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.remove = __devexit_p(snd_cs423x_pnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_cs423x_pnp_suspend,
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.resume = snd_cs423x_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_cs423x_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_cs423x_nonpnp_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_card_cs423x_probe(dev, NULL, NULL) >= 0)
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cards++;
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device = platform_device_register_simple(CS423X_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_cs423x_nonpnp_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(&cs423x_pnpc_driver);
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#endif
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i = pnp_register_card_driver(&cs423x_pnpc_driver);
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if (i > 0)
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cards += i;
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if (!cards) {
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#ifdef CONFIG_PNP
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pnp_unregister_card_driver(&cs423x_pnpc_driver);
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#endif
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platform_driver_unregister(&snd_cs423x_nonpnp_driver);
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#ifdef MODULE
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printk(KERN_ERR IDENT " soundcard not found or device busy\n");
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#endif
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@ -582,14 +671,8 @@ static int __init alsa_card_cs423x_init(void)
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static void __exit alsa_card_cs423x_exit(void)
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{
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int idx;
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#ifdef CONFIG_PNP
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/* PnP cards first */
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pnp_unregister_card_driver(&cs423x_pnpc_driver);
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#endif
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for (idx = 0; idx < SNDRV_CARDS; idx++)
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snd_card_free(snd_cs4236_legacy[idx]);
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platform_driver_unregister(&snd_cs423x_nonpnp_driver);
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}
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module_init(alsa_card_cs423x_init)
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