quasar/testbench/remote_bitbang.h

62 lines
1.2 KiB
C
Raw Normal View History

2021-03-29 13:09:22 +08:00
// See LICENSE.Berkeley for license details.
#ifndef REMOTE_BITBANG_H
#define REMOTE_BITBANG_H
#include <stdint.h>
#include <sys/types.h>
class remote_bitbang_t
{
public:
// Create a new server, listening for connections from localhost on the given
// port.
remote_bitbang_t(uint16_t port);
// Do a bit of work.
void tick(unsigned char * jtag_tck,
unsigned char * jtag_tms,
unsigned char * jtag_tdi,
unsigned char * jtag_trstn,
unsigned char * sysrstn,
unsigned char jtag_tdo);
unsigned char done() {return quit;}
int exit_code() {return err;}
private:
int err;
unsigned char tck;
unsigned char tms;
unsigned char tdi;
unsigned char trstn;
unsigned char srstn;
unsigned char tdo;
unsigned char quit;
int socket_fd;
int client_fd;
static const ssize_t buf_size = 64 * 1024;
char recv_buf[buf_size];
ssize_t recv_start, recv_end;
// Check for a client connecting, and accept if there is one.
void accept();
// Execute any commands the client has for us.
// But we only execute 1 because we need time for the
// simulation to run.
void execute_command();
// Reset. .
void reset(char cmd);
void set_pins(char _tck, char _tms, char _tdi);
};
#endif