/* Copyright 2018 Canaan Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * FreeRTOS Kernel V10.0.1
 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 * 1 tab == 4 spaces!
 */

#ifndef PORTMACRO_H
#define PORTMACRO_H

#ifdef __cplusplus
extern "C" {
#endif

/*-----------------------------------------------------------
 * Port specific definitions.
 *
 * The settings in this file configure FreeRTOS correctly for the
 * given hardware and compiler.
 *
 * These settings should not be altered.
 *-----------------------------------------------------------
 */
#include <encoding.h>
/* Multi-Core */
#define portNUM_PROCESSORS 2

/* Type definitions. */
#define portCHAR        char
#define portFLOAT       float
#define portDOUBLE      double
#define portLONG        long
#define portSHORT       short
#define portBASE_TYPE   long

#define portSTACK_TYPE  uintptr_t
#define portPOINTER_SIZE_TYPE   uintptr_t

typedef portSTACK_TYPE StackType_t;
typedef long BaseType_t;
typedef unsigned long UBaseType_t;

#if( configUSE_16_BIT_TICKS == 1 )
    typedef uint16_t TickType_t;
    #define portMAX_DELAY ( TickType_t ) 0xffff
#else
    typedef uint32_t TickType_t;
    #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif
/*-----------------------------------------------------------*/

/* Architecture specifics. */
#define portSTACK_GROWTH			( -1 )
#define portTICK_PERIOD_MS			( ( TickType_t ) (1000 / configTICK_RATE_HZ) )
#ifdef __riscv64
    #define portBYTE_ALIGNMENT	8
#else
    #define portBYTE_ALIGNMENT	4
#endif
#define portCRITICAL_NESTING_IN_TCB					1
/*-----------------------------------------------------------*/

/* Scheduler utilities. */
extern void vPortYield(void);
extern void vPortYieldFromISR(void);
#define portYIELD()					vPortYield()
#define portYIELD_FROM_ISR()        vPortYieldFromISR()
/*-----------------------------------------------------------*/

/* Architecture specific optimisations. */
#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#endif

#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1

/* Check the configuration. */
#if( configMAX_PRIORITIES > 32 )
#error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32.  It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
#endif

/* Store/clear the ready priorities in a bit map. */
#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )

/*-----------------------------------------------------------*/

#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __builtin_clz( ( uxReadyPriorities ) ) )

#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */

/* Critical section management. */
extern int vPortSetInterruptMask( void );
extern void vPortClearInterruptMask( int );
extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
extern UBaseType_t uxPortGetProcessorId(void);
void prvSetNextTimerInterrupt();
void vPortAddNewTaskToReadyListAsync(UBaseType_t uxPsrId, void* pxNewTaskHandle);

void vPortEnterCritical(void);
void vPortExitCritical(void);

UBaseType_t uxPortGetCPUClock(void);
UBaseType_t uxPortIsInISR(void);
void vPortDebugBreak(void);

#define portGET_PROCESSOR_ID() uxPortGetProcessorId()

#define portDISABLE_INTERRUPTS()                __asm volatile  ( "csrc mstatus,8" )
#define portENABLE_INTERRUPTS()                 __asm volatile  ( "csrs mstatus,8" )
#define portENTER_CRITICAL()					vPortEnterCritical()
#define portEXIT_CRITICAL()						vPortExitCritical()
#define portSET_INTERRUPT_MASK_FROM_ISR()       vPortSetInterruptMask()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusValue )       vPortClearInterruptMask( uxSavedStatusValue )
/*-----------------------------------------------------------*/

/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )

#define portNOP() __asm volatile 	( " nop " )

#ifdef __cplusplus
}
#endif

#endif /* PORTMACRO_H */

