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stm32-f4discovery-usb: implement HCI Event receive - part 2

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This commit is contained in:
Matthias Ringwald 2021-01-28 23:16:50 +01:00
parent bb028eda96
commit 9222ce23eb
1 changed files with 18 additions and 9 deletions
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27
port/stm32-f4discovery-usb/port/usbh_bluetooth.c
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@ -39,6 +39,7 @@
#include "usbh_bluetooth.h"
#include "btstack_debug.h"
#include "btstack_util.h"
#include "bluetooth.h"
typedef struct {
@ -181,30 +182,38 @@ USBH_StatusTypeDef USBH_Bluetooth_Process(USBH_HandleTypeDef *phost){
}
USBH_URBStateTypeDef urb_state;
uint32_t data_size;
uint8_t event_transfer_size;
uint16_t event_size;
switch (usbh_in_state){
case USBH_IN_SUBMIT_REQUEST:
// schedule interrupt transfer
USBH_InterruptReceiveData(phost, hci_event, (uint8_t) sizeof(hci_event), usb->event_in_pipe);
event_transfer_size = btstack_min( usb->event_in_len, sizeof(hci_event) - hci_event_offset);
USBH_InterruptReceiveData(phost, &hci_event[hci_event_offset], event_transfer_size, usb->event_in_pipe);
usb->event_in_frame = phost->Timer;
usbh_in_state = USBH_IN_POLL;
break;
case USBH_IN_POLL:
// poll URB state
urb_state = USBH_LL_GetURBState(phost, usb->event_in_pipe);
switch (urb_state){
case USBH_URB_IDLE:
break;
case USBH_URB_DONE:
usbh_in_state = USBH_IN_SUBMIT_REQUEST;
data_size = USBH_LL_GetLastXferSize(phost, usb->event_in_pipe);
(*usbh_packet_received)(HCI_EVENT_PACKET, hci_event, data_size);
return USBH_OK;
event_transfer_size = USBH_LL_GetLastXferSize(phost, usb->event_in_pipe);
hci_event_offset += event_transfer_size;
if (hci_event_offset < 2) break;
event_size = 2 + hci_event[1];
// event complete
if (hci_event_offset >= event_size){
hci_event_offset = 0;
(*usbh_packet_received)(HCI_EVENT_PACKET, hci_event, event_size);
}
break;
default:
log_info("URB State Event: %02x", urb_state);
break;
}
if ((phost->Timer - usb->event_in_frame) > 2){
// resubmit request
usbh_in_state = USBH_IN_SUBMIT_REQUEST;
return USBH_BUSY;
}
break;
default: