From 94ccfb78a4d61cac7cbc78f23751ec1db949d29e Mon Sep 17 00:00:00 2001 From: Etienne Carriere Date: Tue, 26 Jul 2022 16:21:42 +0200 Subject: drivers: tee: optee: discover OP-TEE services This change defines resources for OP-TEE service drivers to register themselves for being bound to when OP-TEE firmware reports the related service is supported. OP-TEE services are discovered during optee driver probe sequence which mandates optee driver is always probe once bound. Discovery of optee services and binding to related U-Boot drivers is embedded upon configuration switch CONFIG_OPTEE_SERVICE_DISCOVERY. Cc: Jens Wiklander Cc: Patrick Delaunay Signed-off-by: Etienne Carriere Reviewed-by: Patrick Delaunay --- include/tee/optee_service.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 include/tee/optee_service.h (limited to 'include') diff --git a/include/tee/optee_service.h b/include/tee/optee_service.h new file mode 100644 index 00000000000..fca468af7c4 --- /dev/null +++ b/include/tee/optee_service.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * (C) Copyright 2022 Linaro Limited + */ + +#ifndef _OPTEE_SERVICE_H +#define _OPTEE_SERVICE_H + +/* + * struct optee_service - Discoverable OP-TEE service + * + * @driver_name - Name of the related driver + * @uuid - UUID of the OP-TEE service related to the driver + * + * Use macro OPTEE_SERVICE_DRIVER() to register a driver related to an + * OP-TEE service discovered when driver asks OP-TEE services enumaration. + */ +struct optee_service { + const char *driver_name; + const struct tee_optee_ta_uuid uuid; +}; + +#ifdef CONFIG_OPTEE_SERVICE_DISCOVERY +#define OPTEE_SERVICE_DRIVER(__name, __uuid, __drv_name) \ + ll_entry_declare(struct optee_service, __name, optee_service) = { \ + .uuid = __uuid, \ + .driver_name = __drv_name, \ + } +#else +#define OPTEE_SERVICE_DRIVER(__name, __uuid, __drv_name) \ + static int __name##__COUNTER__ __always_unused +#endif + +#endif /* _OPTEE_SERVICE_H */ -- cgit v1.2.3