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fix(core): consider device in USB suspend connected if it was configured before

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This commit is contained in:
Ondrej Mikle 2022-08-30 13:56:00 +02:00
parent a20783731a
commit 77cdf4b43c
1 changed files with 9 additions and 1 deletions
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10
core/embed/trezorhal/usb.c
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@ -153,11 +153,19 @@ void usb_start(void) { USBD_Start(&usb_dev_handle); }
void usb_stop(void) { USBD_Stop(&usb_dev_handle); } void usb_stop(void) { USBD_Stop(&usb_dev_handle); }
secbool usb_configured(void) { secbool usb_configured(void) {
USBD_HandleTypeDef *pdev = &usb_dev_handle; const USBD_HandleTypeDef *pdev = &usb_dev_handle;
if (pdev->dev_state == USBD_STATE_CONFIGURED) { if (pdev->dev_state == USBD_STATE_CONFIGURED) {
return sectrue; return sectrue;
} }
// Linux has autosuspend device after 2 seconds by default.
// So a suspended device that was seen as configured is reported as
// configured.
if (pdev->dev_state == USBD_STATE_SUSPENDED &&
pdev->dev_old_state == USBD_STATE_CONFIGURED) {
return sectrue;
}
return secfalse; return secfalse;
} }