71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
#ifndef NALL_SNES_USART_HPP
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#define NALL_SNES_USART_HPP
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#include <nall/platform.hpp>
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#include <nall/function.hpp>
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#include <nall/serial.hpp>
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#include <nall/stdint.hpp>
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#define usartproc dllexport
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static nall::function<void (unsigned milliseconds)> usart_usleep;
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static nall::function<uint8_t ()> usart_read;
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static nall::function<void (uint8_t data)> usart_write;
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extern "C" usartproc void usart_init(
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nall::function<void (unsigned milliseconds)> usleep,
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nall::function<uint8_t ()> read,
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nall::function<void (uint8_t data)> write
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) {
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usart_usleep = usleep;
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usart_read = read;
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usart_write = write;
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}
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extern "C" usartproc void usart_main();
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//
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static nall::serial usart;
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static bool usart_is_virtual = true;
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static bool usart_virtual() {
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return usart_is_virtual;
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}
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//
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static void usarthw_usleep(unsigned milliseconds) {
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usleep(milliseconds);
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}
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static uint8_t usarthw_read() {
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while(true) {
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uint8_t buffer[1];
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signed length = usart.read((uint8_t*)&buffer, 1);
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if(length > 0) return buffer[0];
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}
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}
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static void usarthw_write(uint8_t data) {
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uint8_t buffer[1] = { data };
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usart.write((uint8_t*)&buffer, 1);
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}
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int main(int argc, char **argv) {
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bool result = false;
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if(argc == 1) result = usart.open("/dev/ttyACM0", 57600, true);
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if(argc == 2) result = usart.open(argv[1], 57600, true);
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if(result == false) {
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printf("error: unable to open USART hardware device\n");
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return 0;
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}
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usart_is_virtual = false;
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usart_init(usarthw_usleep, usarthw_read, usarthw_write);
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usart_main();
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usart.close();
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return 0;
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}
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#endif
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