61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
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#include "usbmem.h"
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#include "util/logging.h"
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void games::ddr::DDRUSBMEMHandle::respond(const char *data) {
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size_t len = strlen(data) + 1;
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memcpy(response_data, data, len);
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memcpy(response_data + len, "\r>", 2);
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response_data_size = len + 2;
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}
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bool games::ddr::DDRUSBMEMHandle::open(LPCWSTR lpFileName) {
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if (wcscmp(lpFileName, L"COM3") != 0) {
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return false;
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}
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log_info("ddr", "Opened COM3 (USBMEM)");
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return true;
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}
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int games::ddr::DDRUSBMEMHandle::read(LPVOID lpBuffer, DWORD nNumberOfBytesToRead) {
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// check for response
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if (response_data_size && nNumberOfBytesToRead >= response_data_size) {
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size_t bytes_read = response_data_size;
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memcpy(lpBuffer, response_data, response_data_size);
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response_data_size = 0;
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return (int) bytes_read;
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}
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// no data
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return 0;
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}
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int games::ddr::DDRUSBMEMHandle::write(LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite) {
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// check CMD
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if (!memcmp(lpBuffer, "sver", 4))
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respond("done GQHDXJAA SPICE");
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else if (!memcmp(lpBuffer, "on_a", 4) ||
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!memcmp(lpBuffer, "on_b", 4) ||
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!memcmp(lpBuffer, "offa", 4) ||
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!memcmp(lpBuffer, "offb", 4) ||
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!memcmp(lpBuffer, "lma ", 4) ||
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!memcmp(lpBuffer, "lmb ", 4))
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respond("done");
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else
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respond("not connected");
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// return all data written
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return (int) nNumberOfBytesToWrite;
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}
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int games::ddr::DDRUSBMEMHandle::device_io(DWORD dwIoControlCode, LPVOID lpInBuffer, DWORD nInBufferSize,
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LPVOID lpOutBuffer, DWORD nOutBufferSize) {
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return -1;
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}
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bool games::ddr::DDRUSBMEMHandle::close() {
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log_info("ddr", "Closed COM3 (USBMEM).");
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return true;
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}
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