kopia lustrzana https://github.com/OpenRTX/OpenRTX
536 wiersze
26 KiB
C
536 wiersze
26 KiB
C
/*
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*********************************************************************************************************
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* uC/CPU
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* CPU CONFIGURATION & PORT LAYER
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*
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* Copyright 2004-2020 Silicon Laboratories Inc. www.silabs.com
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*
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* SPDX-License-Identifier: APACHE-2.0
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*
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* This software is subject to an open source license and is distributed by
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* Silicon Laboratories Inc. pursuant to the terms of the Apache License,
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* Version 2.0 available at www.apache.org/licenses/LICENSE-2.0.
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*
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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*
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* CPU PORT FILE
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*
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* Linux i86pc & amd64
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* GNU Toolchain
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*
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* Filename : cpu.h
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* Version : v1.32.00
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* MODULE
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*
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* Note(s) : (1) This CPU header file is protected from multiple pre-processor inclusion through use of
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* the CPU module present pre-processor macro definition.
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*********************************************************************************************************
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*/
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#ifndef CPU_MODULE_PRESENT /* See Note #1. */
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#define CPU_MODULE_PRESENT
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/*
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*********************************************************************************************************
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* CPU INCLUDE FILES
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*
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* Note(s) : (1) The following CPU files are located in the following directories :
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*
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* (a) \<Your Product Application>\cpu_cfg.h
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*
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* (b) (1) \<CPU-Compiler Directory>\cpu_def.h
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* (2) \<CPU-Compiler Directory>\<cpu>\<compiler>\cpu*.*
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*
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* where
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* <Your Product Application> directory path for Your Product's Application
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* <CPU-Compiler Directory> directory path for common CPU-compiler software
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* <cpu> directory name for specific CPU
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* <compiler> directory name for specific compiler
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*
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* (2) Compiler MUST be configured to include as additional include path directories :
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*
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* (a) '\<Your Product Application>\' directory See Note #1a
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*
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* (b) (1) '\<CPU-Compiler Directory>\' directory See Note #1b1
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* (2) '\<CPU-Compiler Directory>\<cpu>\<compiler>\' directory See Note #1b2
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*
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* (3) Since NO custom library modules are included, 'cpu.h' may ONLY use configurations from
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* CPU configuration file 'cpu_cfg.h' that do NOT reference any custom library definitions.
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*
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* In other words, 'cpu.h' may use 'cpu_cfg.h' configurations that are #define'd to numeric
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* constants or to NULL (i.e. NULL-valued #define's); but may NOT use configurations to
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* custom library #define's (e.g. DEF_DISABLED or DEF_ENABLED).
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*********************************************************************************************************
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <pthread.h>
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#include <cpu_def.h>
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#include <cpu_cfg.h> /* See Note #3. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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*********************************************************************************************************
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* CONFIGURE STANDARD DATA TYPES
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*
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* Note(s) : (1) Configure standard data types according to CPU-/compiler-specifications.
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*
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* (2) (a) (1) 'CPU_FNCT_VOID' data type defined to replace the commonly-used function pointer
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* data type of a pointer to a function which returns void & has no arguments.
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*
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* (2) Example function pointer usage :
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*
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* CPU_FNCT_VOID FnctName;
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*
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* FnctName();
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*
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* (b) (1) 'CPU_FNCT_PTR' data type defined to replace the commonly-used function pointer
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* data type of a pointer to a function which returns void & has a single void
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* pointer argument.
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*
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* (2) Example function pointer usage :
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*
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* CPU_FNCT_PTR FnctName;
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* void *p_obj
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*
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* FnctName(p_obj);
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*********************************************************************************************************
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*/
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typedef void CPU_VOID;
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typedef char CPU_CHAR; /* 8-bit character */
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typedef uint8_t CPU_BOOLEAN; /* 8-bit boolean or logical */
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typedef uint8_t CPU_INT08U; /* 8-bit unsigned integer */
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typedef int8_t CPU_INT08S; /* 8-bit signed integer */
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typedef uint16_t CPU_INT16U; /* 16-bit unsigned integer */
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typedef int16_t CPU_INT16S; /* 16-bit signed integer */
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typedef uint32_t CPU_INT32U; /* 32-bit unsigned integer */
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typedef int32_t CPU_INT32S; /* 32-bit signed integer */
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typedef uint64_t CPU_INT64U; /* 64-bit unsigned integer */
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typedef int64_t CPU_INT64S; /* 64-bit signed integer */
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typedef float CPU_FP32; /* 32-bit floating point */
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typedef double CPU_FP64; /* 64-bit floating point */
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typedef volatile CPU_INT08U CPU_REG08; /* 8-bit register */
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typedef volatile CPU_INT16U CPU_REG16; /* 16-bit register */
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typedef volatile CPU_INT32U CPU_REG32; /* 32-bit register */
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typedef volatile CPU_INT64U CPU_REG64; /* 64-bit register */
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typedef void (*CPU_FNCT_VOID)(void); /* See Note #2a. */
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typedef void (*CPU_FNCT_PTR )(void *p_obj); /* See Note #2b. */
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typedef struct CPU_Interrupt CPU_INTERRUPT;
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struct CPU_Interrupt {
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void (*ISR_Fnct)(void);
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CPU_INT08U Prio;
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CPU_BOOLEAN En;
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CPU_CHAR *NamePtr;
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CPU_BOOLEAN TraceEn;
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};
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typedef struct CPU_Tmr_Interrupt CPU_TMR_INTERRUPT;
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struct CPU_Tmr_Interrupt {
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CPU_INTERRUPT Interrupt;
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CPU_BOOLEAN OneShot;
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CPU_INT32U PeriodSec;
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CPU_INT32U PeriodMuSec;
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};
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/*
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*********************************************************************************************************
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* CPU WORD CONFIGURATION
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*
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* Note(s) : (1) Configure CPU_CFG_ADDR_SIZE, CPU_CFG_DATA_SIZE, & CPU_CFG_DATA_SIZE_MAX with CPU's &/or
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* compiler's word sizes :
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*
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* CPU_WORD_SIZE_08 8-bit word size
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* CPU_WORD_SIZE_16 16-bit word size
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* CPU_WORD_SIZE_32 32-bit word size
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* CPU_WORD_SIZE_64 64-bit word size
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*
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* (2) Configure CPU_CFG_ENDIAN_TYPE with CPU's data-word-memory order :
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*
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* (a) CPU_ENDIAN_TYPE_BIG Big- endian word order (CPU words' most significant
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* octet @ lowest memory address)
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* (b) CPU_ENDIAN_TYPE_LITTLE Little-endian word order (CPU words' least significant
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* octet @ lowest memory address)
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*********************************************************************************************************
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*/
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/* Define CPU word sizes (see Note #1) : */
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#ifdef _LP64
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#define CPU_CFG_ADDR_SIZE CPU_WORD_SIZE_64 /* Defines CPU address word size (in octets). */
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#define CPU_CFG_DATA_SIZE CPU_WORD_SIZE_64 /* Defines CPU data word size (in octets). */
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#else
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#define CPU_CFG_ADDR_SIZE CPU_WORD_SIZE_32 /* Defines CPU address word size (in octets). */
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#define CPU_CFG_DATA_SIZE CPU_WORD_SIZE_32 /* Defines CPU data word size (in octets). */
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#endif
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#define CPU_CFG_DATA_SIZE_MAX CPU_WORD_SIZE_64 /* Defines CPU maximum word size (in octets). */
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define CPU_CFG_ENDIAN_TYPE CPU_ENDIAN_TYPE_LITTLE /* Defines CPU data word-memory order (see Note #2). */
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#else
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#define CPU_CFG_ENDIAN_TYPE CPU_ENDIAN_TYPE_BIG /* Defines CPU data word-memory order (see Note #2). */
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#endif
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/*
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*********************************************************************************************************
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* CONFIGURE CPU ADDRESS & DATA TYPES
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*********************************************************************************************************
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*/
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/* CPU address type based on address bus size. */
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#if (CPU_CFG_ADDR_SIZE == CPU_WORD_SIZE_64)
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typedef CPU_INT64U CPU_ADDR;
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#elif (CPU_CFG_ADDR_SIZE == CPU_WORD_SIZE_32)
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typedef CPU_INT32U CPU_ADDR;
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#elif (CPU_CFG_ADDR_SIZE == CPU_WORD_SIZE_16)
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typedef CPU_INT16U CPU_ADDR;
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#else
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typedef CPU_INT08U CPU_ADDR;
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#endif
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/* CPU data type based on data bus size. */
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#if (CPU_CFG_DATA_SIZE == CPU_WORD_SIZE_64)
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typedef CPU_INT64U CPU_DATA;
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#elif (CPU_CFG_DATA_SIZE == CPU_WORD_SIZE_32)
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typedef CPU_INT32U CPU_DATA;
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#elif (CPU_CFG_DATA_SIZE == CPU_WORD_SIZE_16)
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typedef CPU_INT16U CPU_DATA;
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#else
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typedef CPU_INT08U CPU_DATA;
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#endif
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typedef CPU_DATA CPU_ALIGN; /* Defines CPU data-word-alignment size. */
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typedef size_t CPU_SIZE_T; /* Defines CPU standard 'size_t' size. */
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/*
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*********************************************************************************************************
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* CPU STACK CONFIGURATION
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*
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* Note(s) : (1) Configure CPU_CFG_STK_GROWTH in 'cpu.h' with CPU's stack growth order :
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*
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* (a) CPU_STK_GROWTH_LO_TO_HI CPU stack pointer increments to the next higher stack
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* memory address after data is pushed onto the stack
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* (b) CPU_STK_GROWTH_HI_TO_LO CPU stack pointer decrements to the next lower stack
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* memory address after data is pushed onto the stack
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*
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* (2) Configure CPU_CFG_STK_ALIGN_BYTES with the highest minimum alignement required for
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* cpu stacks.
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*********************************************************************************************************
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*/
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#define CPU_CFG_STK_GROWTH CPU_STK_GROWTH_HI_TO_LO /* Defines CPU stack growth order (see Note #1). */
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#define CPU_CFG_STK_ALIGN_BYTES (sizeof(CPU_ALIGN)) /* Defines CPU stack alignment in bytes. (see Note #2). */
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typedef CPU_INT32U CPU_STK; /* Defines CPU stack data type. */
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typedef CPU_ADDR CPU_STK_SIZE; /* Defines CPU stack size data type. */
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/*
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*********************************************************************************************************
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* CRITICAL SECTION CONFIGURATION
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*
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* Note(s) : (1) Configure CPU_CFG_CRITICAL_METHOD with CPU's/compiler's critical section method :
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*
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* Enter/Exit critical sections by ...
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*
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* CPU_CRITICAL_METHOD_INT_DIS_EN Disable/Enable interrupts
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* CPU_CRITICAL_METHOD_STATUS_STK Push/Pop interrupt status onto stack
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* CPU_CRITICAL_METHOD_STATUS_LOCAL Save/Restore interrupt status to local variable
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*
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* (a) CPU_CRITICAL_METHOD_INT_DIS_EN is NOT a preferred method since it does NOT support
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* multiple levels of interrupts. However, with some CPUs/compilers, this is the only
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* available method.
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*
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* (b) CPU_CRITICAL_METHOD_STATUS_STK is one preferred method since it supports multiple
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* levels of interrupts. However, this method assumes that the compiler provides C-level
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* &/or assembly-level functionality for the following :
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*
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* ENTER CRITICAL SECTION :
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* (1) Push/save interrupt status onto a local stack
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* (2) Disable interrupts
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*
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* EXIT CRITICAL SECTION :
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* (3) Pop/restore interrupt status from a local stack
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*
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* (c) CPU_CRITICAL_METHOD_STATUS_LOCAL is one preferred method since it supports multiple
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* levels of interrupts. However, this method assumes that the compiler provides C-level
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* &/or assembly-level functionality for the following :
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*
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* ENTER CRITICAL SECTION :
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* (1) Save interrupt status into a local variable
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* (2) Disable interrupts
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*
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* EXIT CRITICAL SECTION :
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* (3) Restore interrupt status from a local variable
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*
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* (2) Critical section macro's most likely require inline assembly. If the compiler does NOT
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* allow inline assembly in C source files, critical section macro's MUST call an assembly
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* subroutine defined in a 'cpu_a.asm' file located in the following software directory :
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*
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* \<CPU-Compiler Directory>\<cpu>\<compiler>\
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*
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* where
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* <CPU-Compiler Directory> directory path for common CPU-compiler software
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* <cpu> directory name for specific CPU
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* <compiler> directory name for specific compiler
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*
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* (3) (a) To save/restore interrupt status, a local variable 'cpu_sr' of type 'CPU_SR' MAY need
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* to be declared (e.g. if 'CPU_CRITICAL_METHOD_STATUS_LOCAL' method is configured).
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*
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* (1) 'cpu_sr' local variable SHOULD be declared via the CPU_SR_ALLOC() macro which, if
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* used, MUST be declared following ALL other local variables.
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*
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* Example :
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*
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* void Fnct (void)
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* {
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* CPU_INT08U val_08;
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* CPU_INT16U val_16;
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* CPU_INT32U val_32;
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* CPU_SR_ALLOC(); MUST be declared after ALL other local variables
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* :
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* :
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* }
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*
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* (b) Configure 'CPU_SR' data type with the appropriate-sized CPU data type large enough to
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* completely store the CPU's/compiler's status word.
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*********************************************************************************************************
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*/
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/* Configure CPU critical method (see Note #1) : */
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#define CPU_CFG_CRITICAL_METHOD CPU_CRITICAL_METHOD_INT_DIS_EN
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typedef CPU_BOOLEAN CPU_SR; /* Defines CPU status register size (see Note #3b). */
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/* Allocates CPU status register word (see Note #3a). */
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#if (CPU_CFG_CRITICAL_METHOD == CPU_CRITICAL_METHOD_STATUS_LOCAL)
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#define CPU_SR_ALLOC() CPU_SR cpu_sr = (CPU_SR)0
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#else
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#define CPU_SR_ALLOC()
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#endif
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#define CPU_INT_DIS() do { CPU_IntDis(); } while (0) /* Disable interrupts. */
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#define CPU_INT_EN() do { CPU_IntEn(); } while (0) /* Enable interrupts. */
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#ifdef CPU_CFG_INT_DIS_MEAS_EN
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/* Disable interrupts, ... */
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/* & start interrupts disabled time measurement.*/
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#define CPU_CRITICAL_ENTER() do { CPU_INT_DIS(); \
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CPU_IntDisMeasStart(); } while (0)
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/* Stop & measure interrupts disabled time, */
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/* ... & re-enable interrupts. */
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#define CPU_CRITICAL_EXIT() do { CPU_IntDisMeasStop(); \
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CPU_INT_EN(); } while (0)
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#else
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#define CPU_CRITICAL_ENTER() do { CPU_INT_DIS(); } while (0) /* Disable interrupts. */
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#define CPU_CRITICAL_EXIT() do { CPU_INT_EN(); } while (0) /* Re-enable interrupts. */
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#endif
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/*
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*********************************************************************************************************
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* MEMORY BARRIERS CONFIGURATION
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*
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* Note(s) : (1) (a) Configure memory barriers if required by the architecture.
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*
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* CPU_MB Full memory barrier.
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* CPU_RMB Read (Loads) memory barrier.
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* CPU_WMB Write (Stores) memory barrier.
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*
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*********************************************************************************************************
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*/
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#define CPU_MB()
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#define CPU_RMB()
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#define CPU_WMB()
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/*
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*********************************************************************************************************
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* FUNCTION PROTOTYPES
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*********************************************************************************************************
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*/
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void CPU_IntInit (void);
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void CPU_IntEnd (void);
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void CPU_IntDis (void);
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void CPU_IntEn (void);
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void CPU_ISR_End (void);
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void CPU_TmrInterruptCreate (CPU_TMR_INTERRUPT *p_tmr_interrupt);
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void CPU_InterruptTrigger (CPU_INTERRUPT *p_interrupt);
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/*
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*********************************************************************************************************
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* CONFIGURATION ERRORS
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*********************************************************************************************************
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*/
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#ifndef CPU_CFG_ADDR_SIZE
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#error "CPU_CFG_ADDR_SIZE not #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#elif ((CPU_CFG_ADDR_SIZE != CPU_WORD_SIZE_08) && \
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(CPU_CFG_ADDR_SIZE != CPU_WORD_SIZE_16) && \
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(CPU_CFG_ADDR_SIZE != CPU_WORD_SIZE_32) && \
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(CPU_CFG_ADDR_SIZE != CPU_WORD_SIZE_64))
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#error "CPU_CFG_ADDR_SIZE illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#endif
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#ifndef CPU_CFG_DATA_SIZE
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#error "CPU_CFG_DATA_SIZE not #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#elif ((CPU_CFG_DATA_SIZE != CPU_WORD_SIZE_08) && \
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(CPU_CFG_DATA_SIZE != CPU_WORD_SIZE_16) && \
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(CPU_CFG_DATA_SIZE != CPU_WORD_SIZE_32) && \
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(CPU_CFG_DATA_SIZE != CPU_WORD_SIZE_64))
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#error "CPU_CFG_DATA_SIZE illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#endif
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#ifndef CPU_CFG_DATA_SIZE_MAX
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#error "CPU_CFG_DATA_SIZE_MAX not #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#elif ((CPU_CFG_DATA_SIZE_MAX != CPU_WORD_SIZE_08) && \
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(CPU_CFG_DATA_SIZE_MAX != CPU_WORD_SIZE_16) && \
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(CPU_CFG_DATA_SIZE_MAX != CPU_WORD_SIZE_32) && \
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(CPU_CFG_DATA_SIZE_MAX != CPU_WORD_SIZE_64))
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#error "CPU_CFG_DATA_SIZE_MAX illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_WORD_SIZE_08 8-bit alignment]"
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#error " [ || CPU_WORD_SIZE_16 16-bit alignment]"
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#error " [ || CPU_WORD_SIZE_32 32-bit alignment]"
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#error " [ || CPU_WORD_SIZE_64 64-bit alignment]"
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#endif
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#if (CPU_CFG_DATA_SIZE_MAX < CPU_CFG_DATA_SIZE)
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#error "CPU_CFG_DATA_SIZE_MAX illegally #define'd in 'cpu.h' "
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#error " [MUST be >= CPU_CFG_DATA_SIZE]"
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#endif
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#ifndef CPU_CFG_ENDIAN_TYPE
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#error "CPU_CFG_ENDIAN_TYPE not #define'd in 'cpu.h' "
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#error " [MUST be CPU_ENDIAN_TYPE_BIG ]"
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#error " [ || CPU_ENDIAN_TYPE_LITTLE]"
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#elif ((CPU_CFG_ENDIAN_TYPE != CPU_ENDIAN_TYPE_BIG ) && \
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(CPU_CFG_ENDIAN_TYPE != CPU_ENDIAN_TYPE_LITTLE))
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#error "CPU_CFG_ENDIAN_TYPE illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_ENDIAN_TYPE_BIG ]"
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#error " [ || CPU_ENDIAN_TYPE_LITTLE]"
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#endif
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#ifndef CPU_CFG_STK_GROWTH
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#error "CPU_CFG_STK_GROWTH not #define'd in 'cpu.h' "
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#error " [MUST be CPU_STK_GROWTH_LO_TO_HI]"
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#error " [ || CPU_STK_GROWTH_HI_TO_LO]"
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#elif ((CPU_CFG_STK_GROWTH != CPU_STK_GROWTH_LO_TO_HI) && \
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(CPU_CFG_STK_GROWTH != CPU_STK_GROWTH_HI_TO_LO))
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#error "CPU_CFG_STK_GROWTH illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_STK_GROWTH_LO_TO_HI]"
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#error " [ || CPU_STK_GROWTH_HI_TO_LO]"
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#endif
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#ifndef CPU_CFG_CRITICAL_METHOD
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#error "CPU_CFG_CRITICAL_METHOD not #define'd in 'cpu.h' "
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#error " [MUST be CPU_CRITICAL_METHOD_INT_DIS_EN ]"
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#error " [ || CPU_CRITICAL_METHOD_STATUS_STK ]"
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#error " [ || CPU_CRITICAL_METHOD_STATUS_LOCAL]"
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#elif ((CPU_CFG_CRITICAL_METHOD != CPU_CRITICAL_METHOD_INT_DIS_EN ) && \
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(CPU_CFG_CRITICAL_METHOD != CPU_CRITICAL_METHOD_STATUS_STK ) && \
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(CPU_CFG_CRITICAL_METHOD != CPU_CRITICAL_METHOD_STATUS_LOCAL))
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#error "CPU_CFG_CRITICAL_METHOD illegally #define'd in 'cpu.h' "
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#error " [MUST be CPU_CRITICAL_METHOD_INT_DIS_EN ]"
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#error " [ || CPU_CRITICAL_METHOD_STATUS_STK ]"
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#error " [ || CPU_CRITICAL_METHOD_STATUS_LOCAL]"
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#endif
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/*
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*********************************************************************************************************
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* MODULE END
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*
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* Note(s) : (1) See 'cpu.h MODULE'.
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*********************************************************************************************************
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* End of CPU module include. */
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