C++ (Cpp) snd_pcsp_new_mixer示例

示例#1

文件： pcsp.c 项目： openube/android_kernel_sony_c2305

static int __devinit snd_card_pcsp_probe(int devnum, struct device *dev)
{
	struct snd_card *card;
	int err;

	if (devnum != 0)
		return -EINVAL;

	hrtimer_init(&pcsp_chip.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
	pcsp_chip.timer.function = pcsp_do_timer;

	err = snd_card_create(index, id, THIS_MODULE, 0, &card);
	if (err < 0)
		return err;

	err = snd_pcsp_create(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}
	if (!nopcm) {
		err = snd_pcsp_new_pcm(&pcsp_chip);
		if (err < 0) {
			snd_card_free(card);
			return err;
		}
	}
	err = snd_pcsp_new_mixer(&pcsp_chip, nopcm);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	snd_card_set_dev(pcsp_chip.card, dev);

	strcpy(card->driver, "PC-Speaker");
	strcpy(card->shortname, "pcsp");
	sprintf(card->longname, "Internal PC-Speaker at port 0x%x",
		pcsp_chip.port);

	err = snd_card_register(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	return 0;
}

示例#2

文件： pcsp.c 项目： canalplus/r7oss

static int __init snd_card_pcsp_probe(int dev)
{
	struct snd_card *card;
	int err;

	if (dev != 0)
		return -EINVAL;

	hrtimer_init(&pcsp_chip.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
	pcsp_chip.timer.cb_mode = HRTIMER_CB_IRQSAFE;
	pcsp_chip.timer.function = pcsp_do_timer;

	card = snd_card_new(index, id, THIS_MODULE, 0);
	if (!card)
		return -ENOMEM;

	err = snd_pcsp_create(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}
	err = snd_pcsp_new_pcm(&pcsp_chip);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}
	err = snd_pcsp_new_mixer(&pcsp_chip);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	strcpy(card->driver, "PC-Speaker");
	strcpy(card->shortname, "pcsp");
	sprintf(card->longname, "Internal PC-Speaker at port 0x%x",
		pcsp_chip.port);

	err = snd_card_register(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}

	pcspkr_input_init(&pcsp_chip.input_dev);

	return 0;
}