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Diffstat (limited to 'include/linux/tee_drv.h')
-rw-r--r--include/linux/tee_drv.h50
1 files changed, 49 insertions, 1 deletions
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 6cfe05893a76..4a49f80e7f71 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -15,11 +15,14 @@
#ifndef __TEE_DRV_H
#define __TEE_DRV_H
-#include <linux/types.h>
+#include <linux/device.h>
#include <linux/idr.h>
#include <linux/kref.h>
#include <linux/list.h>
+#include <linux/mod_devicetable.h>
#include <linux/tee.h>
+#include <linux/types.h>
+#include <linux/uuid.h>
/*
* The file describes the API provided by the generic TEE driver to the
@@ -47,6 +50,11 @@ struct tee_shm_pool;
* @releasing: flag that indicates if context is being released right now.
* It is needed to break circular dependency on context during
* shared memory release.
+ * @supp_nowait: flag that indicates that requests in this context should not
+ * wait for tee-supplicant daemon to be started if not present
+ * and just return with an error code. It is needed for requests
+ * that arises from TEE based kernel drivers that should be
+ * non-blocking in nature.
*/
struct tee_context {
struct tee_device *teedev;
@@ -54,6 +62,7 @@ struct tee_context {
void *data;
struct kref refcount;
bool releasing;
+ bool supp_nowait;
};
struct tee_param_memref {
@@ -526,6 +535,18 @@ int tee_client_invoke_func(struct tee_context *ctx,
struct tee_ioctl_invoke_arg *arg,
struct tee_param *param);
+/**
+ * tee_client_cancel_req() - Request cancellation of the previous open-session
+ * or invoke-command operations in a Trusted Application
+ * @ctx: TEE Context
+ * @arg: Cancellation arguments, see description of
+ * struct tee_ioctl_cancel_arg
+ *
+ * Returns < 0 on error else 0 if the cancellation was successfully requested.
+ */
+int tee_client_cancel_req(struct tee_context *ctx,
+ struct tee_ioctl_cancel_arg *arg);
+
static inline bool tee_param_is_memref(struct tee_param *param)
{
switch (param->attr & TEE_IOCTL_PARAM_ATTR_TYPE_MASK) {
@@ -538,4 +559,31 @@ static inline bool tee_param_is_memref(struct tee_param *param)
}
}
+extern struct bus_type tee_bus_type;
+
+/**
+ * struct tee_client_device - tee based device
+ * @id: device identifier
+ * @dev: device structure
+ */
+struct tee_client_device {
+ struct tee_client_device_id id;
+ struct device dev;
+};
+
+#define to_tee_client_device(d) container_of(d, struct tee_client_device, dev)
+
+/**
+ * struct tee_client_driver - tee client driver
+ * @id_table: device id table supported by this driver
+ * @driver: driver structure
+ */
+struct tee_client_driver {
+ const struct tee_client_device_id *id_table;
+ struct device_driver driver;
+};
+
+#define to_tee_client_driver(d) \
+ container_of(d, struct tee_client_driver, driver)
+
#endif /*__TEE_DRV_H*/