59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/**
|
|
* Copyright (C) 2020 Xilinx, Inc
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"). You may
|
|
* not use this file except in compliance with the License. A copy of the
|
|
* License is located 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.
|
|
*/
|
|
#ifndef _PCIDEV_H_
|
|
#define _PCIDEV_H_
|
|
|
|
#include <string>
|
|
#include <sys/mman.h>
|
|
#include <mutex>
|
|
|
|
#define INVALID_ID ((uint16_t)-1)
|
|
|
|
namespace pcidev {
|
|
|
|
// One PCIE function on FPGA board
|
|
class pci_device
|
|
{
|
|
public:
|
|
pci_device(const std::string& sysfs, int ubar, size_t flash_off, std::string flash_type = "");
|
|
~pci_device();
|
|
int pcieBarRead(uint64_t offset, void *buf, uint64_t len);
|
|
int pcieBarWrite(uint64_t offset, const void *buf, uint64_t len);
|
|
int open(const std::string& subdev, int flag);
|
|
void close(int devhdl);
|
|
size_t get_flash_offset() { return flash_offset; }
|
|
int get_flash_bar_index() { return user_bar_index; }
|
|
std::string get_flash_type() { return flash_type_str; };
|
|
|
|
private:
|
|
uint16_t domain = INVALID_ID;
|
|
uint16_t bus = INVALID_ID;
|
|
uint16_t dev = INVALID_ID;
|
|
uint16_t func = INVALID_ID;
|
|
|
|
int map_usr_bar(void);
|
|
std::mutex lock;
|
|
char *user_bar_map = reinterpret_cast<char *>(MAP_FAILED);
|
|
int user_bar_index;
|
|
size_t user_bar_size;
|
|
size_t flash_offset;
|
|
std::string flash_type_str;
|
|
};
|
|
|
|
} // namespace pcidev
|
|
|
|
#endif
|