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Only send PCD_BCD_DISCOVERY_COMPLETED (enable USB CDC) when connected to a downstream port.

fsk9600
Rob Riggs 2018-11-17 13:45:49 -06:00
rodzic 3a876d9457
commit 9463c8de39
1 zmienionych plików z 9 dodań i 2 usunięć
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11
Src/usb_device.c
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@ -135,30 +135,37 @@ void HAL_PCDEx_BCD_Callback(PCD_HandleTypeDef *hpcd, PCD_BCD_MsgTypeDef msg)
{
USBD_HandleTypeDef usbdHandle = hUsbDeviceFS;
static int downstream_port = 0;
/* USER CODE BEGIN 7 */
switch(msg)
{
case PCD_BCD_CONTACT_DETECTION:
downstream_port = 0;
break;
case PCD_BCD_STD_DOWNSTREAM_PORT:
// Only charge after negotiation
DEBUG("Detected standard downstream USB port");
downstream_port = 1;
break;
case PCD_BCD_CHARGING_DOWNSTREAM_PORT:
DEBUG("Detected charging downstream USB port");
osMessagePut(ioEventQueueHandle, CMD_USB_CHARGE_ENABLE, 0);
downstream_port = 1;
break;
case PCD_BCD_DEDICATED_CHARGING_PORT:
DEBUG("Detected dedicated charging port");
osMessagePut(ioEventQueueHandle, CMD_USB_CHARGE_ENABLE, 0);
downstream_port = 0;
break;
case PCD_BCD_DISCOVERY_COMPLETED:
osMessagePut(ioEventQueueHandle, CMD_USB_DISCOVERY_COMPLETE, 0);
if (downstream_port) {
osMessagePut(ioEventQueueHandle, CMD_USB_DISCOVERY_COMPLETE, 0);
}
break;
case PCD_BCD_ERROR: