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added (dummy) CFU hardware driver source files

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stnolting 2020-09-27 20:43:09 +02:00
parent 5135e93aa3
commit 0862b2a739
3 changed files with 119 additions and 1 deletions
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3
sw/lib/include/neorv32.h
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@ -443,7 +443,7 @@ enum NEORV32_PWM_DUTY_enum {
**************************************************************************/
/**@{*/
/** TRNG control/data register (r/w) */
#define TRNG_CT (*(IO_REG32 0xFFFFFFC0UL))
#define TRNG_CT (*(IO_REG32 0xFFFFFFC0UL))
/** TRNG control/data register bits */
enum NEORV32_TRNG_CT_enum {
@ -529,6 +529,7 @@ enum NEORV32_TRNG_CT_enum {
#include "neorv32_rte.h"
// io/peripheral devices
#include "neorv32_cfu.h"
#include "neorv32_gpio.h"
#include "neorv32_mtime.h"
#include "neorv32_pwm.h"

53
sw/lib/include/neorv32_cfu.h Normal file
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@ -0,0 +1,53 @@
// #################################################################################################
// # << NEORV32: neorv32_cfu.h - Custom Functions Unit (CFU) HW Driver >> #
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2020, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
// # #
// # 1. Redistributions of source code must retain the above copyright notice, this list of #
// # conditions and the following disclaimer. #
// # #
// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
// # conditions and the following disclaimer in the documentation and/or other materials #
// # provided with the distribution. #
// # #
// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
// # endorse or promote products derived from this software without specific prior written #
// # permission. #
// # #
// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
// # OF THE POSSIBILITY OF SUCH DAMAGE. #
// # ********************************************************************************************* #
// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #
// #################################################################################################
/**********************************************************************//**
* @file neorv32_cfu.h
* @author Stephan Nolting
* @brief Custom Functions Unit (CFU) HW driver header file.
*
* @warning There are no "real" CFU driver functions available here, because these functions are defined by the actual hardware.
* @warning Hence, the CFU designer has to provide the actual driver functions.
*
* @note These functions should only be used if the CFU was synthesized (IO_CFU_USE = true).
**************************************************************************/
#ifndef neorv32_cfu_h
#define neorv32_cfu_h
// prototypes
int neorv32_cfu_available(void);
#endif // neorv32_cfu_h

64
sw/lib/source/neorv32_cfu.c Normal file
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@ -0,0 +1,64 @@
// #################################################################################################
// # << NEORV32: neorv32_cfu.c - Custom Functions Unit (CFU) HW Driver >> #
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2020, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
// # #
// # 1. Redistributions of source code must retain the above copyright notice, this list of #
// # conditions and the following disclaimer. #
// # #
// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
// # conditions and the following disclaimer in the documentation and/or other materials #
// # provided with the distribution. #
// # #
// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
// # endorse or promote products derived from this software without specific prior written #
// # permission. #
// # #
// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
// # OF THE POSSIBILITY OF SUCH DAMAGE. #
// # ********************************************************************************************* #
// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #
// #################################################################################################
/**********************************************************************//**
* @file neorv32_cfu.c
* @author Stephan Nolting
* @brief Custom functions unit (CFU) HW driver source file.
*
* @warning There are no "real" CFU driver functions available here, because these functions are defined by the actual hardware.
* @warning Hence, the CFU designer has to provide the actual driver functions.
*
* @note These functions should only be used if the CFU was synthesized (IO_CFU_USE = true).
**************************************************************************/
#include "neorv32.h"
#include "neorv32_cfu.h"
/**********************************************************************//**
* Check if CFU unit was synthesized.
*
* @return 0 if CFU was not synthesized, 1 if CFU is available.
**************************************************************************/
int neorv32_cfu_available(void) {
if (SYSINFO_FEATURES & (1 << SYSINFO_FEATURES_IO_CFU)) {
return 1;
}
else {
return 0;
}
}