mirror of
https://github.com/trezor/trezor-firmware.git
synced 2025-03-12 22:26:08 +00:00
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
|
|
* This file is part of the Trezor project, https://trezor.io/
|
|
*
|
|
* Copyright (c) SatoshiLabs
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <trezor_bsp.h>
|
|
|
|
#include "poll.h"
|
|
|
|
#include <io/usb.h>
|
|
#include <sys/systick.h>
|
|
|
|
#ifdef TREZOR_EMULATOR
|
|
#include "SDL.h"
|
|
#endif
|
|
|
|
uint8_t poll_events(const uint16_t* ifaces, size_t ifaces_num,
|
|
poll_event_t* event, uint32_t timeout_ms) {
|
|
uint32_t deadline = ticks_timeout(timeout_ms);
|
|
|
|
while (!ticks_expired(deadline)) {
|
|
#ifdef TREZOR_EMULATOR
|
|
// Ensures that SDL events are processed. This prevents the emulator from
|
|
// freezing when the user interacts with the window.
|
|
SDL_PumpEvents();
|
|
#endif
|
|
|
|
for (size_t i = 0; i < ifaces_num; i++) {
|
|
uint8_t iface_num = ifaces[i] & 0xFF;
|
|
if (iface_num < IFACE_USB_MAX) {
|
|
if ((ifaces[i] & MODE_READ) == MODE_READ) {
|
|
// check if USB can read
|
|
if (sectrue == usb_webusb_can_read(iface_num)) {
|
|
event->type = EVENT_USB_CAN_READ;
|
|
return iface_num;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef TREZOR_EMULATOR
|
|
__WFI();
|
|
#endif
|
|
}
|
|
|
|
event->type = EVENT_NONE;
|
|
return 0;
|
|
}
|