forked from Hay1tsme/segatools
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
#include <windows.h>
|
|
|
|
#include <process.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include "chuniio/leddata.h"
|
|
#include "chuniio/serialimpl.h"
|
|
#include "util/dprintf.h"
|
|
|
|
static HANDLE serial_port;
|
|
static HANDLE serial_write_mutex;
|
|
|
|
HRESULT led_serial_init(wchar_t led_com[12], DWORD baud)
|
|
{
|
|
// Setup the serial communications
|
|
BOOL status;
|
|
|
|
serial_port = CreateFileW(led_com,
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
0,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
0,
|
|
NULL);
|
|
|
|
if (serial_port == INVALID_HANDLE_VALUE)
|
|
dprintf("Chunithm Serial LEDs: Failed to open COM port (Attempted on %S)\n", led_com);
|
|
else
|
|
dprintf("Chunithm Serial LEDs: COM port success!\n");
|
|
|
|
DCB dcb_serial_params = { 0 };
|
|
dcb_serial_params.DCBlength = sizeof(dcb_serial_params);
|
|
status = GetCommState(serial_port, &dcb_serial_params);
|
|
|
|
dcb_serial_params.BaudRate = baud;
|
|
dcb_serial_params.ByteSize = 8;
|
|
dcb_serial_params.StopBits = ONESTOPBIT;
|
|
dcb_serial_params.Parity = NOPARITY;
|
|
SetCommState(serial_port, &dcb_serial_params);
|
|
|
|
COMMTIMEOUTS timeouts = { 0 };
|
|
timeouts.ReadIntervalTimeout = 50;
|
|
timeouts.ReadTotalTimeoutConstant = 50;
|
|
timeouts.ReadTotalTimeoutMultiplier = 10;
|
|
timeouts.WriteTotalTimeoutConstant = 50;
|
|
timeouts.WriteTotalTimeoutMultiplier = 10;
|
|
|
|
SetCommTimeouts(serial_port, &timeouts);
|
|
|
|
if (!status)
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
serial_write_mutex = CreateMutex(
|
|
NULL, // default security attributes
|
|
FALSE, // initially not owned
|
|
NULL); // unnamed mutex
|
|
|
|
if (serial_write_mutex == NULL)
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
void led_serial_update(struct _chuni_led_data_buf_t* data)
|
|
{
|
|
if (data->board > 2)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (WaitForSingleObject(serial_write_mutex, INFINITE) != WAIT_OBJECT_0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
BOOL status = true;
|
|
DWORD bytes_written = 0;
|
|
|
|
if (serial_port != INVALID_HANDLE_VALUE) {
|
|
status = WriteFile(
|
|
serial_port,
|
|
data,
|
|
LED_OUTPUT_HEADER_SIZE + data->data_len,
|
|
&bytes_written,
|
|
NULL);
|
|
}
|
|
|
|
if (!status) {
|
|
DWORD last_err = GetLastError();
|
|
// dprintf("Chunithm Serial LEDs: Serial port write failed -- %d\n", last_err);
|
|
}
|
|
|
|
ReleaseMutex(serial_write_mutex);
|
|
}
|