/**
* @brief Callback used to indicate a transmission from device INto host completed
* Checks if any data remains, pads it into HID packet and sends.
*/
static void PIOS_USB_HID_EP_IN_Callback(void)
{
struct pios_usb_hid_dev * usb_hid_dev = (struct pios_usb_hid_dev *)pios_usb_hid_id;
bool valid = PIOS_USB_HID_validate(usb_hid_dev);
PIOS_Assert(valid);
if (!PIOS_USB_CheckAvailable(usb_hid_dev->lower_id)) {
return;
}
PIOS_USB_HID_SendReport(usb_hid_dev);
}
/**
* @brief Callback used to indicate a transmission from device INto host completed
* Checks if any data remains, pads it into HID packet and sends.
*/
static bool PIOS_USB_HID_EP_IN_Callback(uint32_t usb_hid_id, uint8_t epnum, uint16_t len)
{
struct pios_usb_hid_dev * usb_hid_dev = (struct pios_usb_hid_dev *)usb_hid_id;
if (!PIOS_USB_HID_validate(usb_hid_dev)) {
return false;
}
if (PIOS_USB_CheckAvailable(usb_hid_dev->lower_id) &&
PIOS_USB_HID_SendReport(usb_hid_dev)) {
/* More data has been queued, leave tx_active set to true */
return true;
} else {
/* Nothing new sent, transmitter is now inactive */
usb_hid_dev->tx_active = false;
return false;
}
}
static void PIOS_USB_HID_TxStart(uint32_t usbhid_id, uint16_t tx_bytes_avail)
{
struct pios_usb_hid_dev * usb_hid_dev = (struct pios_usb_hid_dev *)usbhid_id;
bool valid = PIOS_USB_HID_validate(usb_hid_dev);
PIOS_Assert(valid);
if (!PIOS_USB_CheckAvailable(usb_hid_dev->lower_id)) {
return;
}
if (GetEPTxStatus(usb_hid_dev->cfg->data_tx_ep) == EP_TX_VALID) {
/* Endpoint is already transmitting */
return;
}
PIOS_USB_HID_SendReport(usb_hid_dev);
}
static void PIOS_USB_HID_TxStart(uint32_t usbhid_id, uint16_t tx_bytes_avail)
{
struct pios_usb_hid_dev * usb_hid_dev = (struct pios_usb_hid_dev *)usbhid_id;
bool valid = PIOS_USB_HID_validate(usb_hid_dev);
PIOS_Assert(valid);
/* Make sure this USB interface has been initialized */
if (!usb_hid_dev->usb_if_enabled) {
return;
}
if (!PIOS_USB_CheckAvailable(usb_hid_dev->lower_id)) {
return;
}
if (!usb_hid_dev->tx_active) {
/* Transmitter is not currently active, send a report */
PIOS_USB_HID_SendReport(usb_hid_dev);
}
}
