2 * This file is part of Cleanflight and Betaflight.
4 * Cleanflight and Betaflight are free software. You can redistribute
5 * this software and/or modify this software under the terms of the
6 * GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option)
10 * Cleanflight and Betaflight are distributed in the hope that they
11 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
12 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this software.
18 * If not, see <http://www.gnu.org/licenses/>.
28 #include "drivers/io.h"
29 #include "drivers/time.h"
33 static IO_t usbDetectPin
;
36 void usbCableDetectDeinit(void)
39 IOInit(usbDetectPin
, OWNER_FREE
, 0);
40 IOConfigGPIO(usbDetectPin
, IOCFG_IN_FLOATING
);
41 usbDetectPin
= IO_NONE
;
45 void usbCableDetectInit(void)
48 usbDetectPin
= IOGetByTag(IO_TAG(USB_DETECT_PIN
));
50 IOInit(usbDetectPin
, OWNER_USB_DETECT
, 0);
51 IOConfigGPIO(usbDetectPin
, IOCFG_IPD
);
55 bool usbCableIsInserted(void)
61 result
= IORead(usbDetectPin
) != 0;
68 void usbGenerateDisconnectPulse(void)
70 /* Pull down PA12 to create USB disconnect pulse */
71 IO_t usbPin
= IOGetByTag(IO_TAG(PA12
));
72 IOConfigGPIO(usbPin
, IOCFG_OUT_OD
);