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authorFulup Ar Foll <fulup@iot.bzh>2017-05-26 18:45:56 +0200
committerFulup Ar Foll <fulup@iot.bzh>2017-05-26 18:45:56 +0200
commitd2e42029ec04c3f224580f8007cdfbbfe0fc47a6 (patch)
treead2ccf167cf7997c84191d41e6ba55cb2efd6bed /ucs2-lib/src/ucs_eh.c
parent18e393e1443fd4c38b34979888fb55d30448cf31 (diff)
Initial Commit
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+/*------------------------------------------------------------------------------------------------*/
+/* UNICENS V2.1.0-3491 */
+/* Copyright (c) 2017 Microchip Technology Germany II GmbH & Co. KG. */
+/* */
+/* This program 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 2 of the License, or */
+/* (at your option) any later version. */
+/* */
+/* This program 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/>. */
+/* */
+/* You may also obtain this software under a propriety license from Microchip. */
+/* Please contact Microchip for further information. */
+/*------------------------------------------------------------------------------------------------*/
+
+/*!
+ * \file
+ * \brief Implementation of the event handler.
+ *
+ * \cond UCS_INTERNAL_DOC
+ * \addtogroup G_EH
+ * @{
+ */
+
+/*------------------------------------------------------------------------------------------------*/
+/* Includes */
+/*------------------------------------------------------------------------------------------------*/
+#include "ucs_eh.h"
+#include "ucs_misc.h"
+
+/*------------------------------------------------------------------------------------------------*/
+/* Internal prototypes */
+/*------------------------------------------------------------------------------------------------*/
+static bool Eh_EncodeEvent(uint32_t event_code, Ucs_Error_t *public_error_code_ptr);
+
+/*------------------------------------------------------------------------------------------------*/
+/* Implementation of class CEventHandler */
+/*------------------------------------------------------------------------------------------------*/
+/*! \brief Constructor of the event handler class.
+ * \param self Instance pointer
+ * \param ucs_user_ptr User reference that needs to be passed in every callback function
+ */
+void Eh_Ctor(CEventHandler *self, void * ucs_user_ptr)
+{
+ MISC_MEM_SET(self, 0, sizeof(*self));
+ /* Save UNICENS instance ID */
+ self->ucs_user_ptr = ucs_user_ptr;
+ /* Initialize subject for internal events */
+ Sub_Ctor(&self->internal_event_subject, self->ucs_user_ptr);
+ /* Initialize subject for public error reporting */
+ Ssub_Ctor(&self->public_error_subject, self->ucs_user_ptr);
+}
+
+/*! \brief Adds an observer which reports public errors
+ * \param self Instance pointer
+ * \param obs_ptr Reference to an observer
+ */
+void Eh_AddObsrvPublicError(CEventHandler *self, CSingleObserver *obs_ptr)
+{
+ (void)Ssub_AddObserver(&self->public_error_subject, obs_ptr);
+}
+
+/*! \brief Removes an observer registered by Eh_AddObsrvPublicError().
+ * \param self Instance pointer
+ */
+void Eh_DelObsrvPublicError(CEventHandler *self)
+{
+ Ssub_RemoveObserver(&self->public_error_subject);
+}
+
+/*! \brief Reports an event to the event handler.
+ * \param self Instance pointer
+ * \param event_code Event code to report
+ */
+void Eh_ReportEvent(CEventHandler *self, uint32_t event_code)
+{
+ Ucs_Error_t public_error_code;
+ /* Check if event code exists */
+ if((event_code & EH_M_ALL_EVENTS) != 0U)
+ {
+ /* Encode internal event code */
+ bool result = Eh_EncodeEvent(event_code, &public_error_code);
+ /* Notify all registered observers */
+ Msub_Notify(&self->internal_event_subject, &event_code, event_code);
+ /* Report error to application? */
+ if(result != false)
+ {
+ Ssub_Notify(&self->public_error_subject, &public_error_code, false);
+ }
+ }
+}
+
+/*! \brief Encodes an internal event code. Some internal event codes are mapped to public
+ * error codes.
+ * \param event_code Internal event code to report
+ * \param public_error_code_ptr Returned public error code
+ * \return true if error must be reported to the application, otherwise false
+ */
+static bool Eh_EncodeEvent(uint32_t event_code, Ucs_Error_t *public_error_code_ptr)
+{
+ bool ret_val = true;
+
+ /* Translate internal event code into public error code */
+ switch(event_code)
+ {
+ case EH_E_BIST_FAILED:
+ *public_error_code_ptr = UCS_GEN_ERR_INIC;
+ break;
+ case EH_E_UNSYNC_COMPLETE:
+ case EH_E_UNSYNC_FAILED:
+ *public_error_code_ptr = UCS_GEN_ERR_COMMUNICATION;
+ break;
+ default:
+ ret_val = false; /* Do not report this event to application. */
+ break;
+ }
+
+ return ret_val;
+}
+
+/*! \brief Registers an observer on the given event code.
+ * \param self Instance pointer
+ * \param obs_ptr Reference to the masked-observer object
+ */
+void Eh_AddObsrvInternalEvent(CEventHandler *self, CMaskedObserver *obs_ptr)
+{
+ (void)Sub_AddObserver(&self->internal_event_subject, &obs_ptr->parent);
+}
+
+/*! \brief Unregisters the given observer from the given event code.
+ * \param self Instance pointer
+ * \param obs_ptr Reference to the masked-observer object
+ */
+void Eh_DelObsrvInternalEvent(CEventHandler *self, CMaskedObserver *obs_ptr)
+{
+ (void)Sub_RemoveObserver(&self->internal_event_subject, &obs_ptr->parent);
+}
+
+/*!
+ * @}
+ * \endcond
+ */
+
+/*------------------------------------------------------------------------------------------------*/
+/* End of file */
+/*------------------------------------------------------------------------------------------------*/
+