diff options
Diffstat (limited to 'demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/tsclient.h')
| -rw-r--r-- | demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/tsclient.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/tsclient.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/tsclient.h new file mode 100644 index 000000000..6389bdb01 --- /dev/null +++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/tsclient.h @@ -0,0 +1,157 @@ +/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file tsclient.h
+ * @brief TSSI client module macros and structures.
+ *
+ * @addtogroup TSSI
+ * @{
+ */
+
+#ifndef TSCLIENT_H
+#define TSCLIENT_H
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+/* Service registry errors as returned by smc.*/
+#define SMC_SVC_OK MSG_OK /* No error.*/
+#define SMC_SVC_INTR (msg_t)-1 /* Service interrupted ( == MSG_TIMEOUT).*/
+#define SMC_SVC_NOENT (msg_t)-2 /* No existent service.*/
+#define SMC_SVC_INVALID (msg_t)-3 /* Invalid service parameter(s).*/
+#define SMC_SVC_BADH (msg_t)-4 /* Invalid service handle.*/
+#define SMC_SVC_EXIST (msg_t)-5 /* Service already exists.*/
+#define SMC_SVC_NHND (msg_t)-6 /* No more services.*/
+#define SMC_SVC_BUSY (msg_t)-7 /* Service busy.*/
+
+/* Special trusted service handles.*/
+#define TS_HND_DISCOVERY ((ts_service_t *)1) /* Discovery service handle.*/
+#define TS_HND_STQRY ((ts_service_t *)2) /* Query status service handle.*/
+#define TS_HND_IDLE ((ts_service_t *)3) /* Idle service handle.*/
+
+/*===========================================================================*/
+/* Module pre-compile time settings. */
+/*===========================================================================*/
+
+#define TS_GRANTED_TIMESLICE 1000 /* Microseconds.*/
+
+#define TS_CHECK_EVENT_HOOK(f) { \
+ (void)f; \
+}
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module data structures and types. */
+/*===========================================================================*/
+
+typedef uint8_t * ts_params_area_t;
+typedef void * ts_service_t;
+
+/*===========================================================================*/
+/* Module macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module inline functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Call a service via smc instruction.
+ * @note see tsInvoke1()
+ *
+ * @notapi
+ */
+static inline int64_t tsInvoke0(ts_service_t handle, ts_params_area_t data,
+ size_t size, sysinterval_t yieldtime) {
+ register int64_t result asm("r0");
+
+ register int32_t r0 asm("r0") = (int32_t) handle;
+ register int32_t r1 asm("r1") = (int32_t) data;
+ register int32_t r2 asm("r2") = (int32_t) size;
+ register int32_t r3 asm("r3") = (int32_t) yieldtime;
+
+ __asm volatile ("smc #0" : "=r" (result) : "r" (r0), "r" (r1), "r" (r2),
+ "r" (r3) : "memory");
+ return result;
+}
+
+/**
+ * @brief Call a service via smc instruction.
+ * @details call a given service via smc and evaluate the eventflags mask
+ * returned by the secure world. The flags mask is checked by a
+ * macro, TS_CHECK_EVENT_HOOK, supplied by the user.
+ *
+ * @param[in] handle The handle of the service to invoke.
+ * The handle is obtained by an invoke to discovery
+ * service.
+ * @param[inout] svc_data Service request data, often a reference to a more
+ * complex structure.
+ * @param[in] svc_datalen Size of the svc_data memory area.
+ * @param[in] yieldtime The time yield to SEC service to run, in microsec.
+ *
+ * @return A 64bit value. It is the OR of the 32bit service
+ * status combined with a 32bit event mask (in the
+ * hi-word).
+ * The retval values are returned in the lower word
+ * as 32bit int.
+ * @retval SMC_SVC_OK generic success value.
+ * @retval SMC_SVC_INTR call interrupted.
+ * @retval SMC_SVC_BUSY the service has a pending request.
+ * @retval SMC_SVC_INVALID bad parameters.
+ * @retval SMC_SVC_NOENT no such service.
+ * @retval SMC_SVC_BADH bad handle.
+ *
+ * @api
+ */
+static inline int64_t tsInvoke1(ts_service_t handle, ts_params_area_t data,
+ size_t size, sysinterval_t timeslice) {
+ int64_t result;
+ eventflags_t f;
+
+ result = tsInvoke0(handle, data, size, timeslice);
+ f = (eventflags_t)(result >> 32);
+ TS_CHECK_EVENT_HOOK(f);
+ return result;
+}
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+msg_t tsInvokeService(ts_service_t handle, ts_params_area_t data,
+ size_t size, sysinterval_t svc_nsec_time);
+#ifdef __cplusplus
+}
+#endif
+
+/*===========================================================================*/
+/* Module inline functions. */
+/*===========================================================================*/
+
+#endif /* TSCLIENT_H */
+
+/** @} */
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