91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
// SPDX-License-Identifier: Apache-2.0
|
|
/*
|
|
* Copyright (c) 2021 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
|
|
*/
|
|
|
|
#ifndef SRC_FX2_LL_HPP_
|
|
#define SRC_FX2_LL_HPP_
|
|
|
|
#include <libusb.h>
|
|
#include <stdint.h>
|
|
|
|
#include <string>
|
|
|
|
/*!
|
|
* \file fx2_ll
|
|
* \class FX2_ll
|
|
* \brief low level driver for cypress fx2 device
|
|
* \author Gwenhael Goavec-Merou
|
|
*/
|
|
class FX2_ll {
|
|
public:
|
|
/*!
|
|
* \brief constructor
|
|
* \param[in] uninit_vid: vendor ID for uninitialized device
|
|
* \param[in] uninit_pid: product ID for uninitialized device
|
|
* \param[in] vid: vendor ID for initialized device
|
|
* \param[in] pid: product ID for initialized device
|
|
* \param[in] firmware_path: firmware to load
|
|
*/
|
|
FX2_ll(uint16_t uninit_vid, uint16_t uninit_pid,
|
|
uint16_t vid, uint16_t pid, const std::string &firmware_path);
|
|
~FX2_ll();
|
|
|
|
/*!
|
|
* \brief bulk write
|
|
* \param[in] endpoint: endpoint to use
|
|
* \param[in] buff: buffer to write
|
|
* \param[in] len: buffer length
|
|
* \return -1 when transfer fails, number of bytes otherwise
|
|
*/
|
|
int write(uint8_t endpoint, uint8_t *buff, uint16_t len);
|
|
/*!
|
|
* \brief bulk read
|
|
* \param[in] endpoint: endpoint to use
|
|
* \param[in] buff: buffer to fill
|
|
* \param[in] len: buffer length
|
|
* \return -1 when transfer fails, number of bytes otherwise
|
|
*/
|
|
int read(uint8_t endpoint, uint8_t *buff, uint16_t len);
|
|
/*!
|
|
* \brief control write
|
|
* \param[in] bRequest
|
|
* \param[in] wValue
|
|
* \param[in] buff: buffer to write
|
|
* \param[in] len: buffer length
|
|
* \return false when transfer fails, true otherwise
|
|
*/
|
|
int write_ctrl(uint8_t bRequest, uint16_t wValue,
|
|
uint8_t *buff, uint16_t len);
|
|
/*!
|
|
* \brief control write
|
|
* \param[in] bRequest
|
|
* \param[in] wValue
|
|
* \param[in] buff: buffer to write
|
|
* \param[in] len: buffer length
|
|
* \return false when transfer fails, true otherwise
|
|
*/
|
|
int read_ctrl(uint8_t bRequest, uint16_t wValue,
|
|
uint8_t *buff, uint16_t len);
|
|
|
|
private:
|
|
/*!
|
|
* \brief load firmware into device
|
|
* \param[in] firmware_path: firmware to load
|
|
* \return false if reset or firmware load fail
|
|
*/
|
|
bool load_firmware(std::string firmware_path);
|
|
/*!
|
|
* \brief set/unset reset bit in CPUCS register
|
|
* \param[in] res8051: set or reset
|
|
* \return false if something fails
|
|
*/
|
|
bool reset(uint8_t res8051);
|
|
bool close();
|
|
|
|
libusb_device_handle *dev_handle;
|
|
libusb_context *usb_ctx;
|
|
};
|
|
#endif // SRC_FX2_LL_HPP_
|
|
|