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trezor-firmware/firmware/udp.c
2017-12-18 20:09:59 +01:00

71 lines
1.5 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (C) 2017 Saleem Rashid <trezor@saleemrashid.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include "usb.h"
#include "messages.h"
#include "timer.h"
static volatile char tiny = 0;
void usbInit(void) {
emulatorSocketInit();
}
void usbPoll(void) {
emulatorPoll();
static uint8_t buffer[64];
if (emulatorSocketRead(buffer, sizeof(buffer)) > 0) {
if (!tiny) {
msg_read(buffer, sizeof(buffer));
} else {
msg_read_tiny(buffer, sizeof(buffer));
}
}
const uint8_t *data = msg_out_data();
#if DEBUG_LINK
if (data == NULL) {
data = msg_debug_out_data();
}
#endif
if (data != NULL) {
emulatorSocketWrite(data, 64);
}
}
char usbTiny(char set) {
char old = tiny;
tiny = set;
return old;
}
void usbSleep(uint32_t millis) {
uint32_t start = timer_ms();
while ((timer_ms() - start) < millis) {
usbPoll();
}
}