mirror of https://github.com/bsnes-emu/bsnes.git
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
#ifndef NALL_EMULATION_SUPER_FAMICOM_USART_HPP
|
|
#define NALL_EMULATION_SUPER_FAMICOM_USART_HPP
|
|
|
|
#include <nall/platform.hpp>
|
|
#include <nall/function.hpp>
|
|
#include <nall/serial.hpp>
|
|
#include <nall/stdint.hpp>
|
|
|
|
#include <signal.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
|
|
#define usartproc dllexport
|
|
|
|
static nall::function<bool ()> usart_quit;
|
|
static nall::function<void (unsigned milliseconds)> usart_usleep;
|
|
static nall::function<bool ()> usart_readable;
|
|
static nall::function<uint8_t ()> usart_read;
|
|
static nall::function<bool ()> usart_writable;
|
|
static nall::function<void (uint8_t data)> usart_write;
|
|
|
|
extern "C" usartproc void usart_init(
|
|
nall::function<bool ()> quit,
|
|
nall::function<void (unsigned milliseconds)> usleep,
|
|
nall::function<bool ()> readable,
|
|
nall::function<uint8_t ()> read,
|
|
nall::function<bool ()> writable,
|
|
nall::function<void (uint8_t data)> write
|
|
) {
|
|
usart_quit = quit;
|
|
usart_usleep = usleep;
|
|
usart_readable = readable;
|
|
usart_read = read;
|
|
usart_writable = writable;
|
|
usart_write = write;
|
|
}
|
|
|
|
extern "C" usartproc void usart_main(int, char**);
|
|
|
|
//
|
|
|
|
static nall::serial usart;
|
|
static bool usart_is_virtual = true;
|
|
static bool usart_sigint = false;
|
|
|
|
static bool usart_virtual() {
|
|
return usart_is_virtual;
|
|
}
|
|
|
|
//
|
|
|
|
static bool usarthw_quit() {
|
|
return usart_sigint;
|
|
}
|
|
|
|
static void usarthw_usleep(unsigned milliseconds) {
|
|
usleep(milliseconds);
|
|
}
|
|
|
|
static bool usarthw_readable() {
|
|
return usart.readable();
|
|
}
|
|
|
|
static uint8_t usarthw_read() {
|
|
while(true) {
|
|
uint8_t buffer[1];
|
|
signed length = usart.read((uint8_t*)&buffer, 1);
|
|
if(length > 0) return buffer[0];
|
|
}
|
|
}
|
|
|
|
static bool usarthw_writable() {
|
|
return usart.writable();
|
|
}
|
|
|
|
static void usarthw_write(uint8_t data) {
|
|
uint8_t buffer[1] = { data };
|
|
usart.write((uint8_t*)&buffer, 1);
|
|
}
|
|
|
|
static void sigint(int) {
|
|
signal(SIGINT, SIG_DFL);
|
|
usart_sigint = true;
|
|
}
|
|
|
|
int main(int argc, char** argv) {
|
|
setpriority(PRIO_PROCESS, 0, -20); //requires superuser privileges; otherwise priority = +0
|
|
signal(SIGINT, sigint);
|
|
|
|
if(usart.open("/dev/ttyACM0", 57600, true) == false) {
|
|
printf("error: unable to open USART hardware device\n");
|
|
return 0;
|
|
}
|
|
|
|
usart_is_virtual = false;
|
|
usart_init(usarthw_quit, usarthw_usleep, usarthw_readable, usarthw_read, usarthw_writable, usarthw_write);
|
|
usart_main(argc, argv);
|
|
usart.close();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|