mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-18 05:28:40 +00:00
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
// Copyright Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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// Thin shim to allow abstracting away from hid_* calls to
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// a set or read/write pipes w/ a particular interface.
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#include <assert.h>
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#include "u2f_util.h"
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bool DEV_opened(struct U2Fob* device) {
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return device->dev != NULL;
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}
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void DEV_close(struct U2Fob* device) {
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if (device->dev) {
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hid_close(device->dev);
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device->dev = NULL;
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}
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if (device->dev_debug) {
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hid_close(device->dev_debug);
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device->dev_debug = NULL;
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}
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}
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void DEV_open_path(struct U2Fob* device) {
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device->dev = hid_open_path(device->path);
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if (atoi(device->path) != 21325) {
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device->dev_debug = hid_open_path("21325");
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} else {
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device->dev_debug = NULL;
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}
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}
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int DEV_write(struct U2Fob* device, const uint8_t* src, size_t n) {
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assert(n == 65);
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return hid_write(device->dev, src, n);
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}
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int DEV_read_timeout(struct U2Fob* device, uint8_t* dst, size_t n,
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int timeout) {
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assert(n == 64);
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return hid_read_timeout(device->dev, dst, n, timeout);
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}
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int DEV_touch(struct U2Fob* device) {
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if (!device->dev_debug) {
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return 0;
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}
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sleep(1);
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// send DebugLinkDecision{yes_no=True} to DebugLink interface
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hid_write(device->dev_debug, (const uint8_t *)"\x00?##\x00" "d\x00\x00\x00\x02\x08\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 65);
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sleep(1);
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return 1;
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}
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