Mouse code for the MacroRat
mbed-dev/targets/TARGET_RENESAS/TARGET_RZ_A1H/device/nvic_wrapper.c
- Committer:
- sahilmgandhi
- Date:
- 2017-05-14
- Revision:
- 18:6a4db94011d3
File content as of revision 18:6a4db94011d3:
/******************************************************************************* * DISCLAIMER * This software is supplied by Renesas Electronics Corporation and is only * intended for use with Renesas products. No other uses are authorized. This * software is owned by Renesas Electronics Corporation and is protected under * all applicable laws, including copyright laws. * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * Renesas reserves the right, without notice, to make changes to this software * and to discontinue the availability of this software. By using this software, * you agree to the additional terms and conditions found by accessing the * following link: * http://www.renesas.com/disclaimer * Copyright (C) 2012 - 2015 Renesas Electronics Corporation. All rights reserved. *******************************************************************************/ /**************************************************************************//** * @file nvic_wrapper.c * $Rev: $ * $Date:: $ * @brief Wrapper between NVIC(for Cortex-M) and GIC(for Cortex-A9) ******************************************************************************/ /****************************************************************************** Includes <System Includes> , "Project Includes" ******************************************************************************/ #include "MBRZA1H.h" #include "wdt_iodefine.h" #include "nvic_wrapper.h" #include "gic.h" /****************************************************************************** Typedef definitions ******************************************************************************/ /****************************************************************************** Macro definitions ******************************************************************************/ #define PRIO_BITS (7) /* Set binary point to 0 in gic.c */ #define WDT_WTCNT_WRITE (0x5A00) #define WDT_WTCSR_WRITE (0xA500) #define WDT_WRCSR_WOVF_WRITE (0xA500) #define WDT_WRCSR_RSTE_WRITE (0x5A00) /****************************************************************************** Imported global variables and functions (from other files) ******************************************************************************/ /****************************************************************************** Exported global variables and functions (to be accessed by other files) ******************************************************************************/ /****************************************************************************** Private global variables and functions ******************************************************************************/ /* ########################## NVIC functions #################################### */ void NVIC_SetPriorityGrouping(uint32_t PriorityGroup) { GIC_SetBinaryPoint(PriorityGroup); } uint32_t NVIC_GetPriorityGrouping(void) { return GIC_GetBinaryPoint(0); } void NVIC_EnableIRQ(IRQn_Type IRQn) { GIC_EnableIRQ(IRQn); } void NVIC_DisableIRQ(IRQn_Type IRQn) { GIC_DisableIRQ(IRQn); } uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) { uint32_t pending; pending = GIC_GetIRQStatus(IRQn); pending = (pending & 0x00000001); return pending; } void NVIC_SetPendingIRQ(IRQn_Type IRQn) { GIC_SetPendingIRQ(IRQn); } void NVIC_ClearPendingIRQ(IRQn_Type IRQn) { GIC_ClearPendingIRQ(IRQn); } uint32_t NVIC_GetActive(IRQn_Type IRQn) { uint32_t active; active = GIC_GetIRQStatus(IRQn); active = ((active >> 1) & 0x00000001); return active; } void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority) { GIC_SetPriority(IRQn, (priority << 3)); } uint32_t NVIC_GetPriority(IRQn_Type IRQn) { uint32_t priority_field; priority_field = GIC_GetPriority(IRQn); priority_field = (priority_field >> 3); return priority_field; } uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority) { uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ uint32_t PreemptPriorityBits; uint32_t SubPriorityBits; PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp; SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS; return ( ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) | ((SubPriority & ((1 << (SubPriorityBits )) - 1))) ); } void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) { uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ uint32_t PreemptPriorityBits; uint32_t SubPriorityBits; PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp; SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS; *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1); *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1); } void NVIC_SystemReset(void) { uint16_t reg; uint8_t dummy_read; /* Use Watch Dog Timer to system reset */ /* Set WT/IT bit of WTCSR to 1 = Watch Dog */ /* CLK = 000, 1xP0phi(=33.3333MHz) = 7.7us */ reg = (WDT_WTCSR_WRITE | 0x0058); WDTWTCSR = reg; /* Clear Count reg */ reg = (WDT_WTCNT_WRITE | 0x0000); WDTWTCNT = reg; /* Clear WOVF flag */ dummy_read = WDTWRCSR; reg = (WDT_WRCSR_WOVF_WRITE | (dummy_read & 0x0000)); WDTWRCSR = reg; /* Enable Internal Reset */ reg = (WDT_WRCSR_RSTE_WRITE | 0x005F); WDTWRCSR = reg; /* Watch Dog start */ reg = (WDT_WTCSR_WRITE | 0x0078); WDTWTCSR = reg; while(1); /* wait Internal Reset */ } /* ################################## SysTick function ############################################ */ uint32_t SysTick_Config(uint32_t ticks) { /* Not support this function */ /* Use mbed Ticker */ return (1); /* impossible */ } /* ##################################### Debug In/Output function ########################################### */ uint32_t ITM_SendChar (uint32_t ch) { /* Not support this function */ /* Use mbed Serial */ return (ch); } int32_t ITM_ReceiveChar (void) { /* Not support this function */ /* Use mbed Serial */ return (-1); /* no character available */ } int32_t ITM_CheckChar (void) { /* Not support this function */ /* Use mbed Serial */ return (0); /* no character available */ }