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/* * FPGA Interface C API 21.3 source file. * * Copyright (c) 2021, * National Instruments Corporation. * All rights reserved. */ #include "NiFpga.h" /* * Platform specific includes. */ #if NiFpga_Windows #include <windows.h> #elif NiFpga_Linux || NiFpga_MacOsX #include <stdlib.h> #include <stdio.h> #include <dlfcn.h> #else #error #endif /* * Platform specific defines. */ #if NiFpga_Windows #define NiFpga_CCall __cdecl #define NiFpga_StdCall __stdcall #else #define NiFpga_CCall #define NiFpga_StdCall #endif /* * Global library handle, or NULL if the library isn't loaded. */ #if NiFpga_Windows static HMODULE NiFpga_library = NULL; #elif NiFpga_VxWorks static MODULE_ID NiFpga_library = NULL; #elif NiFpga_Linux || NiFpga_MacOsX static void* NiFpga_library = NULL; #else #error #endif /* * CVI Resource Tracking functions. */ #if NiFpga_Cvi && NiFpga_Windows #define NiFpga_CviResourceTracking 1 static char* const NiFpga_cviResourceType = "FPGA Interface C API"; typedef void* (NiFpga_CCall *NiFpga_AcquireCviResource)(void* resource, char* type, char* description, ...); static NiFpga_AcquireCviResource NiFpga_acquireCviResource = NULL; typedef void* (NiFpga_StdCall *NiFpga_ReleaseCviResource)(void* resource); static NiFpga_ReleaseCviResource NiFpga_releaseCviResource = NULL; #endif /* * Session management functions. */ static NiFpga_Status (NiFpga_CCall *NiFpga_open)( const char* path, const char* signature, const char* resource, uint32_t attribute, NiFpga_Session* session) = NULL; NiFpga_Status NiFpga_Open(const char* path, const char* signature, const char* resource, uint32_t attribute, NiFpga_Session* session) { const NiFpga_Status result = NiFpga_open ? NiFpga_open(path, signature, resource, attribute, session) : NiFpga_Status_ResourceNotInitialized; #if NiFpga_CviResourceTracking if (NiFpga_acquireCviResource && NiFpga_IsNotError(result)) NiFpga_acquireCviResource((void*)*session, NiFpga_cviResourceType, "NiFpga_Session %#08x", *session); #endif return result; } static NiFpga_Status (NiFpga_CCall *NiFpga_close)( NiFpga_Session session, uint32_t attribute) = NULL; NiFpga_Status NiFpga_Close(NiFpga_Session session, uint32_t attribute) { if (!NiFpga_close) return NiFpga_Status_ResourceNotInitialized; #if NiFpga_CviResourceTracking if (NiFpga_releaseCviResource) NiFpga_releaseCviResource((void*)session); #endif return NiFpga_close(session, attribute); } /* * FPGA state functions. */ static NiFpga_Status (NiFpga_CCall *NiFpga_run)( NiFpga_Session session, uint32_t attribute) = NULL; NiFpga_Status NiFpga_Run(NiFpga_Session session, uint32_t attribute) { return NiFpga_run ? NiFpga_run(session, attribute) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_abort)( NiFpga_Session session) = NULL; NiFpga_Status NiFpga_Abort(NiFpga_Session session) { return NiFpga_abort ? NiFpga_abort(session) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_reset)( NiFpga_Session session) = NULL; NiFpga_Status NiFpga_Reset(NiFpga_Session session) { return NiFpga_reset ? NiFpga_reset(session) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_download)( NiFpga_Session session) = NULL; NiFpga_Status NiFpga_Download(NiFpga_Session session) { return NiFpga_download ? NiFpga_download(session) : NiFpga_Status_ResourceNotInitialized; } /* * Functions to read from scalar indicators and controls. */ static NiFpga_Status (NiFpga_CCall *NiFpga_readBool)( NiFpga_Session session, uint32_t indicator, NiFpga_Bool* value) = NULL; NiFpga_Status NiFpga_ReadBool(NiFpga_Session session, uint32_t indicator, NiFpga_Bool* value) { return NiFpga_readBool ? NiFpga_readBool(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_readI8)( NiFpga_Session session, uint32_t indicator, int8_t* value) = NULL; NiFpga_Status NiFpga_ReadI8(NiFpga_Session session, uint32_t indicator, int8_t* value) { return NiFpga_readI8 ? NiFpga_readI8(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_readU8)( NiFpga_Session session, uint32_t indicator, uint8_t* value) = NULL; NiFpga_Status NiFpga_ReadU8(NiFpga_Session session, uint32_t indicator, uint8_t* value) { return NiFpga_readU8 ? NiFpga_readU8(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_readI16)( NiFpga_Session session, uint32_t indicator, int16_t* value) = NULL; NiFpga_Status NiFpga_ReadI16(NiFpga_Session session, uint32_t indicator, int16_t* value) { return NiFpga_readI16 ? NiFpga_readI16(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_readU16)( NiFpga_Session session, uint32_t indicator, uint16_t* value) = NULL; NiFpga_Status NiFpga_ReadU16(NiFpga_Session session, uint32_t indicator, uint16_t* value) { return NiFpga_readU16 ? NiFpga_readU16(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } static NiFpga_Status (NiFpga_CCall *NiFpga_readI32)( NiFpga_Session session, uint32_t indicator, int32_t* value) = NULL; NiFpga_Status NiFpga_ReadI32(NiFpga_Session session, uint32_t indicator, int32_t* value) { return NiFpga_readI32 ? NiFpga_readI32(session, indicator, value) : NiFpga_Status_ResourceNotInitialized; } stat