C++ (Cpp) tf_create_device_context Exemples

Exemple #1

Fichier : tf_teec.c Projet : AndroidDeveloperAlliance/ZenKernel_TUNA

TEEC_Result TEEC_InitializeContext(const char *name,
				   TEEC_Context *context)
{
	int error;
	struct tf_connection *connection = NULL;

	error = tf_open(tf_get_device(), NULL, &connection);
	if (error != 0) {
		dprintk(KERN_ERR "TEEC_InitializeContext(%s): "
			"tf_open failed (error %d)!\n",
			(name == NULL ? "(null)" : name), error);
		goto error;
	}
	BUG_ON(connection == NULL);
	connection->owner = TF_CONNECTION_OWNER_KERNEL;

	error = tf_create_device_context(connection);
	if (error != 0) {
		dprintk(KERN_ERR "TEEC_InitializeContext(%s): "
			"tf_create_device_context failed (error %d)!\n",
			(name == NULL ? "(null)" : name), error);
		goto error;
	}

	context->imp._connection = connection;
	/*spin_lock_init(&context->imp._operations_lock);*/
	return S_SUCCESS;

error:
	tf_close(connection);
	return TEEC_encode_error(error);
}

Exemple #2

Fichier : tf_device.c Projet : ARMP/android_kernel_lge_x3

static int tf_device_open(struct inode *inode, struct file *file)
{
	int error;
	struct tf_device *dev = &g_tf_dev;
	struct tf_connection *connection = NULL;

	dprintk(KERN_INFO "tf_device_open(%u:%u, %p)\n",
		imajor(inode), iminor(inode), file);

	/* Dummy lseek for non-seekable driver */
	error = nonseekable_open(inode, file);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"nonseekable_open failed (error %d)!\n",
			file, error);
		goto error;
	}

#ifndef CONFIG_ANDROID
	/*
	 * Check file flags. We only autthorize the O_RDWR access
	 */
	if (file->f_flags != O_RDWR) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"Invalid access mode %u\n",
			file, file->f_flags);
		error = -EACCES;
		goto error;
	}
#endif

	/*
	 * Open a new connection.
	 */

	error = tf_open(dev, file, &connection);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"tf_open failed (error %d)!\n",
			file, error);
		goto error;
	}

	file->private_data = connection;

	/*
	 * Send the CreateDeviceContext command to the secure
	 */
	error = tf_create_device_context(connection);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"tf_create_device_context failed (error %d)!\n",
			file, error);
		goto error1;
	}

	/*
	 * Successful completion.
	 */

	dprintk(KERN_INFO "tf_device_open(%p): Success (connection=%p)\n",
		file, connection);
	return 0;

	/*
	 * Error handling.
	 */

error1:
	tf_close(connection);
error:
	dprintk(KERN_INFO "tf_device_open(%p): Failure (error %d)\n",
		file, error);
	return error;
}

Exemple #3

Fichier : tf_device.c Projet : ARMP/ARM-Project

static int tf_device_open(struct inode *inode, struct file *file)
{
	int error;
	struct tf_device *dev = &g_tf_dev;
	struct tf_connection *connection = NULL;

	dprintk(KERN_INFO "tf_device_open(%u:%u, %p)\n",
		imajor(inode), iminor(inode), file);

	/* Dummy lseek for non-seekable driver */
	error = nonseekable_open(inode, file);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"nonseekable_open failed (error %d)!\n",
			file, error);
		goto error;
	}

	/*
	 * Open a new connection.
	 */

	error = tf_open(dev, file, &connection);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"tf_open failed (error %d)!\n",
			file, error);
		goto error;
	}

	file->private_data = connection;

	/*
	 * Send the CreateDeviceContext command to the secure
	 */
	error = tf_create_device_context(connection);
	if (error != 0) {
		dprintk(KERN_ERR "tf_device_open(%p): "
			"tf_create_device_context failed (error %d)!\n",
			file, error);
		goto error1;
	}

	/*
	 * Successful completion.
	 */

	dprintk(KERN_INFO "tf_device_open(%p): Success (connection=%p)\n",
		file, connection);
	return 0;

	/*
	 * Error handling.
	 */

error1:
	tf_close(connection);
error:
	dprintk(KERN_INFO "tf_device_open(%p): Failure (error %d)\n",
		file, error);
	return error;
}