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TARGET_ARM_CM3DS_MPS2/TOOLCHAIN_IAR/arm_mps2_io_drv.h
- Committer:
- AnnaBridge
- Date:
- 2019-02-20
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
File content as of revision 172:65be27845400:
/* * Copyright (c) 2018 ARM Limited * * 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. */ /** * \file arm_mps2_io_drv.h * \brief Generic driver for ARM MPS2 IO. */ #ifndef __ARM_MPS2_IO_DRV_H__ #define __ARM_MPS2_IO_DRV_H__ #include <stdint.h> #ifdef __cplusplus extern "C" { #endif /* ARM MPS2 IO enumeration types */ enum arm_mps2_io_access_t { ARM_MPS2_IO_ACCESS_PIN = 0, /*!< Pin access to MPS2 IO */ ARM_MPS2_IO_ACCESS_PORT /*!< Port access to MPS2 IO */ }; enum arm_mps2_io_type_t { ARM_MPS2_IO_TYPE_SCC = 0, /*!< Use the SCC IO device */ ARM_MPS2_IO_TYPE_FPGAIO /*!< Use the FPGA IO device */ }; /* ARM MPS2 IO device configuration structure */ struct arm_mps2_io_dev_cfg_t { const uint32_t base; /*!< MPS2 IO base address */ const enum arm_mps2_io_type_t type; /*!< SCC or FPGAIO */ }; /* ARM MPS2 IO device structure */ struct arm_mps2_io_dev_t { const struct arm_mps2_io_dev_cfg_t* const cfg; /*!< MPS2 IO configuration */ }; /** * \brief Writes to output LEDs. * * \param[in] dev MPS2 IO device where to write \ref arm_mps2_io_dev_t * \param[in] access Access type \ref arm_mps2_io_access_t * \param[in] pin_num Pin number. * \param[in] value Value(s) to set. * * \note This function doesn't check if dev is NULL. */ void arm_mps2_io_write_leds(struct arm_mps2_io_dev_t* dev, enum arm_mps2_io_access_t access, uint8_t pin_num, uint32_t value); /** * \brief Writes corresponding pin in FPGA IO MISC register. * * \param[in] dev MPS2 IO device where to write \ref arm_mps2_io_dev_t * \param[in] pin_num Pin number. * \param[in] value Value to set. * * \note This function doesn't check if dev is NULL. * \note This function doesn't support port access. */ void arm_mps2_io_write_misc(struct arm_mps2_io_dev_t* dev, enum arm_mps2_io_access_t access, uint8_t pin_num, uint32_t value); /** * \brief Reads the buttons status. * * \param[in] dev MPS2 IO device where to read \ref arm_mps2_io_dev_t * \param[in] access Access type \ref arm_mps2_io_access_t * \param[in] pin_num Pin number. * * \return Returns bit value for Pin access or port value for port access. * * \note This function doesn't check if dev is NULL. */ uint32_t arm_mps2_io_read_buttons(struct arm_mps2_io_dev_t* dev, enum arm_mps2_io_access_t access, uint8_t pin_num); /** * \brief Reads the LED status. * * \param[in] dev MPS2 IO device where to read \ref arm_mps2_io_dev_t * \param[in] access Access type \ref arm_mps2_io_access_t * \param[in] pin_num Pin number. * * \return Returns bit value for Pin access or port value for port access. * * \note This function doesn't check if dev is NULL. */ uint32_t arm_mps2_io_read_leds(struct arm_mps2_io_dev_t* dev, enum arm_mps2_io_access_t access, uint8_t pin_num); #ifdef __cplusplus } #endif #endif /* __ARM_MPS2_IO_DRV_H__ */