Ejemplos de snd_sys_release en C++ (Cpp)

Ejemplo n.º 1

Archivo: snd.c Proyecto: OpenSwift/android_kernel_swift

static ssize_t snd_avc_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t size)
{
	ssize_t status;
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	int rc = 0;

	rc = snd_sys_open();
	if (rc)
		return rc;

	mutex_lock(&snd_sys->lock);

	if (sysfs_streq(buf, "enable"))
		status = snd_avc_enable(1);
	else if (sysfs_streq(buf, "disable"))
		status = snd_avc_enable(0);
	else
		status = -EINVAL;

	mutex_unlock(&snd_sys->lock);
	rc = snd_sys_release();
	if (rc)
		return rc;

	return status ? : size;
}

Ejemplo n.º 2

Archivo: snd.c Proyecto: AntonioPT/u8150-kernel-pulse-port

static long snd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	struct snd_set_device_msg dmsg;
	struct snd_set_volume_msg vmsg;
	struct snd_avc_ctl_msg avc_msg;
	struct snd_agc_ctl_msg agc_msg;

	struct msm_snd_device_config dev;
	struct msm_snd_volume_config vol;
	struct snd_ctxt *snd = file->private_data;
	int rc = 0;

	uint32_t avc, agc;

	mutex_lock(&snd->lock);
	switch (cmd) {
	case SND_SET_DEVICE:
		if (copy_from_user(&dev, (void __user *) arg, sizeof(dev))) {
			MM_ERR("set device: invalid pointer\n");
			rc = -EFAULT;
			break;
		}

		dmsg.args.device = cpu_to_be32(dev.device);
		dmsg.args.ear_mute = cpu_to_be32(dev.ear_mute);
		dmsg.args.mic_mute = cpu_to_be32(dev.mic_mute);
		if (check_mute(dev.ear_mute) < 0 ||
				check_mute(dev.mic_mute) < 0) {
			MM_ERR("set device: invalid mute status\n");
			rc = -EINVAL;
			break;
		}
		dmsg.args.cb_func = -1;
		dmsg.args.client_data = 0;

		MM_INFO("snd_set_device %d %d %d\n", dev.device,
				dev.ear_mute, dev.mic_mute);

		rc = msm_rpc_call(snd->ept,
			SND_SET_DEVICE_PROC,
			&dmsg, sizeof(dmsg), 5 * HZ);
		break;

	case SND_SET_VOLUME:
		if (copy_from_user(&vol, (void __user *) arg, sizeof(vol))) {
			MM_ERR("set volume: invalid pointer\n");
			rc = -EFAULT;
			break;
		}

		vmsg.args.device = cpu_to_be32(vol.device);
		vmsg.args.method = cpu_to_be32(vol.method);
#ifdef CONFIG_HUAWEI_KERNEL
		if (vol.method != SND_METHOD_VOICE&&vol.method != SND_METHOD_MIDI) {
#else
		if (vol.method != SND_METHOD_VOICE) {
#endif

			MM_ERR("set volume: invalid method\n");
			rc = -EINVAL;
			break;
		}

		vmsg.args.volume = cpu_to_be32(vol.volume);
		vmsg.args.cb_func = -1;
		vmsg.args.client_data = 0;

		MM_INFO("snd_set_volume %d %d %d\n", vol.device,
				vol.method, vol.volume);

		rc = msm_rpc_call(snd->ept,
			SND_SET_VOLUME_PROC,
			&vmsg, sizeof(vmsg), 5 * HZ);
		break;

	case SND_AVC_CTL:
		if (get_user(avc, (uint32_t __user *) arg)) {
			rc = -EFAULT;
			break;
		} else if ((avc != 1) && (avc != 0)) {
			rc = -EINVAL;
			break;
		}

		avc_msg.args.avc_ctl = cpu_to_be32(avc);
		avc_msg.args.cb_func = -1;
		avc_msg.args.client_data = 0;

		MM_INFO("snd_avc_ctl %d\n", avc);

		rc = msm_rpc_call(snd->ept,
			SND_AVC_CTL_PROC,
			&avc_msg, sizeof(avc_msg), 5 * HZ);
		break;

	case SND_AGC_CTL:
		if (get_user(agc, (uint32_t __user *) arg)) {
			rc = -EFAULT;
			break;
		} else if ((agc != 1) && (agc != 0)) {
			rc = -EINVAL;
			break;
		}
		agc_msg.args.agc_ctl = cpu_to_be32(agc);
		agc_msg.args.cb_func = -1;
		agc_msg.args.client_data = 0;

		MM_INFO("snd_agc_ctl %d\n", agc);

		rc = msm_rpc_call(snd->ept,
			SND_AGC_CTL_PROC,
			&agc_msg, sizeof(agc_msg), 5 * HZ);
		break;

	case SND_GET_NUM_ENDPOINTS:
		if (copy_to_user((void __user *)arg,
				&snd->snd_epts->num, sizeof(unsigned))) {
			MM_ERR("get endpoint: invalid pointer\n");
			rc = -EFAULT;
		}
		break;

	case SND_GET_ENDPOINT:
		rc = get_endpoint(snd, arg);
		break;

	default:
		MM_ERR("unknown command\n");
		rc = -EINVAL;
		break;
	}
	mutex_unlock(&snd->lock);

	return rc;
}

static int snd_release(struct inode *inode, struct file *file)
{
	struct snd_ctxt *snd = file->private_data;
	int rc;

	mutex_lock(&snd->lock);
	rc = msm_rpc_close(snd->ept);
	if (rc < 0)
		MM_ERR("msm_rpc_close failed\n");
	snd->ept = NULL;
	snd->opened = 0;
	mutex_unlock(&snd->lock);
	return 0;
}
static int snd_sys_release(void)
{
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	int rc = 0;

	mutex_lock(&snd_sys->lock);
	rc = msm_rpc_close(snd_sys->ept);
	if (rc < 0)
		MM_ERR("msm_rpc_close failed\n");
	snd_sys->ept = NULL;
	mutex_unlock(&snd_sys->lock);
	return rc;
}
static int snd_open(struct inode *inode, struct file *file)
{
	struct snd_ctxt *snd = &the_snd;
	int rc = 0;

	mutex_lock(&snd->lock);
	if (snd->opened == 0) {
		if (snd->ept == NULL) {
			snd->ept = msm_rpc_connect_compatible(RPC_SND_PROG,
					RPC_SND_VERS, 0);
			if (IS_ERR(snd->ept)) {
				rc = PTR_ERR(snd->ept);
				snd->ept = NULL;
				MM_ERR("failed to connect snd svc\n");
				goto err;
			}
		}
		file->private_data = snd;
		snd->opened = 1;
	} else {
		MM_ERR("snd already opened\n");
		rc = -EBUSY;
	}

err:
	mutex_unlock(&snd->lock);
	return rc;
}
static int snd_sys_open(void)
{
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	int rc = 0;

	mutex_lock(&snd_sys->lock);
	if (snd_sys->ept == NULL) {
		snd_sys->ept = msm_rpc_connect_compatible(RPC_SND_PROG,
			RPC_SND_VERS, 0);
		if (IS_ERR(snd_sys->ept)) {
			rc = PTR_ERR(snd_sys->ept);
			snd_sys->ept = NULL;
			MM_ERR("failed to connect snd svc\n");
			goto err;
		}
	} else
		MM_DBG("snd already opened\n");

err:
	mutex_unlock(&snd_sys->lock);
	return rc;
}

static struct file_operations snd_fops = {
	.owner		= THIS_MODULE,
	.open		= snd_open,
	.release	= snd_release,
	.unlocked_ioctl	= snd_ioctl,
};

struct miscdevice snd_misc = {
	.minor	= MISC_DYNAMIC_MINOR,
	.name	= "msm_snd",
	.fops	= &snd_fops,
};

static long snd_agc_enable(unsigned long arg)
{
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	struct snd_agc_ctl_msg agc_msg;
	int rc = 0;

	if ((arg != 1) && (arg != 0))
		return -EINVAL;

	agc_msg.args.agc_ctl = cpu_to_be32(arg);
	agc_msg.args.cb_func = -1;
	agc_msg.args.client_data = 0;

	MM_DBG("snd_agc_ctl %ld,%d\n", arg, agc_msg.args.agc_ctl);

	rc = msm_rpc_call(snd_sys->ept,
		SND_AGC_CTL_PROC,
		&agc_msg, sizeof(agc_msg), 5 * HZ);
	return rc;
}

static long snd_avc_enable(unsigned long arg)
{
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	struct snd_avc_ctl_msg avc_msg;
	int rc = 0;

	if ((arg != 1) && (arg != 0))
		return -EINVAL;

	avc_msg.args.avc_ctl = cpu_to_be32(arg);

	avc_msg.args.cb_func = -1;
	avc_msg.args.client_data = 0;

	MM_DBG("snd_avc_ctl %ld,%d\n", arg, avc_msg.args.avc_ctl);

	rc = msm_rpc_call(snd_sys->ept,
		SND_AVC_CTL_PROC,
		&avc_msg, sizeof(avc_msg), 5 * HZ);
	return rc;
}

static ssize_t snd_agc_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t size)
{
	ssize_t status;
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	int rc = 0;

	rc = snd_sys_open();
	if (rc)
		return rc;

	mutex_lock(&snd_sys->lock);

	if (sysfs_streq(buf, "enable"))
		status = snd_agc_enable(1);
	else if (sysfs_streq(buf, "disable"))
		status = snd_agc_enable(0);
	else
		status = -EINVAL;

	mutex_unlock(&snd_sys->lock);
	rc = snd_sys_release();
	if (rc)
		return rc;

	return status ? : size;
}

static ssize_t snd_avc_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t size)
{
	ssize_t status;
	struct snd_sys_ctxt *snd_sys = &the_snd_sys;
	int rc = 0;

	rc = snd_sys_open();
	if (rc)
		return rc;

	mutex_lock(&snd_sys->lock);

	if (sysfs_streq(buf, "enable"))
		status = snd_avc_enable(1);
	else if (sysfs_streq(buf, "disable"))
		status = snd_avc_enable(0);
	else
		status = -EINVAL;

	mutex_unlock(&snd_sys->lock);
	rc = snd_sys_release();
	if (rc)
		return rc;

	return status ? : size;
}