/*---------------------------------------------------------------------------*/
static void
do_work(void)
{
unsigned int events;
events = usb_get_global_events();
if(events & USB_EVENT_CONFIG) {
/* Configure EPs. Don't enable them yet, until the CDC line is up */
usb_setup_bulk_endpoint(EPIN);
usb_setup_bulk_endpoint(EPOUT);
queue_rx_urb();
}
if(events & USB_EVENT_RESET) {
enabled = 0;
}
events = usb_cdc_acm_get_events();
if(events & USB_CDC_ACM_LINE_STATE) {
uint8_t line_state = usb_cdc_acm_get_line_state();
PRINTF("CDC-ACM event 0x%04x, Line State = %u\n", events, line_state);
if(line_state & USB_CDC_ACM_DTE) {
enabled = 1;
} else {
enabled = 0;
}
}
if(!enabled) {
return;
}
events = usb_get_ep_events(EPOUT);
if((events & USB_EP_EVENT_NOTIFICATION)
&& !(data_rx_urb.flags & USB_BUFFER_SUBMITTED)) {
if(!(data_rx_urb.flags & USB_BUFFER_FAILED)) {
if(input_handler) {
uint8_t len;
uint8_t i;
len = RX_BUFFER_SIZE - data_rx_urb.left;
for(i = 0; i < len; i++) {
input_handler(usb_rx_data[i]);
}
}
}
queue_rx_urb();
}
}
PROCESS_THREAD(usb_eth_process, ev , data)
{
PROCESS_BEGIN();
usb_register_request_handler(&cdc_eth_request_hook);
usb_setup();
usb_set_ep_event_process(DATA_OUT, process_current);
usb_set_global_event_process(process_current);
uip_fw_default(&usbethif);
uip_setethaddr(default_uip_ethaddr);
uip_arp_init();
while(1) {
PROCESS_WAIT_EVENT();
if (ev == PROCESS_EVENT_EXIT) break;
if (ev == PROCESS_EVENT_POLL) {
unsigned int events = usb_get_global_events();
if (events) {
if (events & USB_EVENT_CONFIG) {
if (usb_get_current_configuration() != 0) {
printf("Configured\n");
usb_setup_bulk_endpoint(DATA_IN);
usb_setup_bulk_endpoint(DATA_OUT);
usb_setup_interrupt_endpoint(INTERRUPT_IN);
init_recv_buffer();
usb_submit_recv_buffer(DATA_OUT, &recv_buffer);
#if 0
{
static const uint8_t foo[4] = {0x12,0x34,0x56,0x78};
xmit_buffer[0].next = NULL;
xmit_buffer[0].left = sizeof(foo);
xmit_buffer[0].flags = USB_BUFFER_SHORT_END;
xmit_buffer[0].data = &foo;
usb_submit_xmit_buffer(DATA_IN, &xmit_buffer[0]);
}
#endif
} else {
usb_disable_endpoint(DATA_IN);
usb_disable_endpoint(DATA_OUT);
usb_disable_endpoint(INTERRUPT_IN);
}
}
}
events = usb_get_ep_events(DATA_OUT);
if (events & USB_EP_EVENT_NOTIFICATION) {
uip_len = sizeof(recv_data) - recv_buffer.left;
/* printf("Received: %d bytes\n", uip_len); */
memcpy(uip_buf, recv_data, uip_len);
#if UIP_CONF_IPV6
if(BUF->type == uip_htons(UIP_ETHTYPE_IPV6)) {
uip_neighbor_add(&IPBUF->srcipaddr, &BUF->src);
tcpip_input();
} else
#endif /* UIP_CONF_IPV6 */
if(BUF->type == uip_htons(UIP_ETHTYPE_IP)) {
uip_len -= sizeof(struct uip_eth_hdr);
tcpip_input();
} else if(BUF->type == uip_htons(UIP_ETHTYPE_ARP)) {
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if (uip_len > 0) {
memcpy(xmit_data, uip_buf, uip_len);
xmit_buffer[0].next = NULL;
xmit_buffer[0].data = xmit_data;
xmit_buffer[0].left = uip_len;
xmit_buffer[0].flags = USB_BUFFER_SHORT_END;
usb_submit_xmit_buffer(DATA_IN, &xmit_buffer[0]);
/* printf("Sent: %d bytes\n", uip_len); */
}
}
init_recv_buffer();
usb_submit_recv_buffer(DATA_OUT, &recv_buffer);
}
}
}
PROCESS_END();
}
PROCESS_THREAD(usb_process, ev , data)
{
PROCESS_BEGIN();
PRINTF("USB process started\r\n");
while(1) {
PROCESS_WAIT_EVENT();
if (ev == PROCESS_EVENT_EXIT) break;
if (ev == PROCESS_EVENT_POLL) {
unsigned int events = usb_arch_get_global_events();
if (events) {
if (events & USB_EVENT_RESET) {
submit_setup();
usb_configuration_value = 0;
notify_user(USB_EVENT_RESET);
}
if (events & USB_EVENT_SUSPEND) {
notify_user(USB_EVENT_SUSPEND);
}
if (events & USB_EVENT_RESUME) {
notify_user(USB_EVENT_RESUME);
}
}
events = usb_get_ep_events(0);
if (events) {
if ((events & USB_EP_EVENT_NOTIFICATION)
&& !(ctrl_buffer.flags & USB_BUFFER_SUBMITTED)) {
/* PRINTF("Endpoint 0\r\n"); */
if (ctrl_buffer.flags & USB_BUFFER_FAILED) {
/* Something went wrong with the buffer, just wait for a
new SETUP packet */
PRINTF("Discarded\r\n");
submit_setup();
} else if (ctrl_buffer.flags & USB_BUFFER_SETUP) {
struct USBRequestHandlerHook *hook = usb_request_handler_hooks;
PRINTF("Setup\r\n");
#if 0
{
unsigned int i;
for (i = 0; i< 8; i++) PRINTF(" %02x", ((unsigned char*)&usb_setup_buffer)[i]);
PRINTF("\r\n");
}
#endif
while(hook) {
const struct USBRequestHandler *handler = hook->handler;
/* Check if the handler matches the request */
if (((handler->request_type ^ usb_setup_buffer.bmRequestType)
& handler->request_type_mask) == 0
&& ((handler->request ^ usb_setup_buffer.bRequest)
& handler->request_mask) == 0) {
if (handler->handler_func()) break;
}
hook = hook->next;
}
if (!hook) {
/* No handler found */
usb_error_stall();
PRINTF("Unhandled setup: %02x %02x %04x %04x %04x\r\n",
usb_setup_buffer.bmRequestType, usb_setup_buffer.bRequest,
usb_setup_buffer.wValue, usb_setup_buffer.wIndex,
usb_setup_buffer.wLength);
}
/* Check if any handler stalled the pipe, if so prepare for
next setup */
if (error_stall) {
error_stall = 0;
submit_setup();
}
} else {
if (ctrl_buffer.id == IN_ID) {
/* Receive status stage */
PRINTF("Status OUT\r\n");
ctrl_buffer.flags = USB_BUFFER_NOTIFY;
ctrl_buffer.next = NULL;
ctrl_buffer.data = NULL;
ctrl_buffer.left = 0;
ctrl_buffer.id = STATUS_OUT_ID;
usb_submit_recv_buffer(0,&ctrl_buffer);
} else if (ctrl_buffer.id == STATUS_OUT_ID) {
PRINTF("Status OUT done\r\n");
submit_setup();
} else if (ctrl_buffer.id == STATUS_IN_ID) {
PRINTF("Status IN done\r\n");
if (usb_flags & USB_FLAG_ADDRESS_PENDING) {
while(usb_send_pending(0));
usb_arch_set_address(LOW_BYTE(usb_setup_buffer.wValue));
usb_flags &= ~USB_FLAG_ADDRESS_PENDING;
}
submit_setup();
} else if (ctrl_buffer.id == OUT_ID) {
PRINTF("OUT\r\n");
if (data_callback) {
data_callback(ctrl_data, ctrl_data_len- ctrl_buffer.left);
} else {
usb_send_ctrl_status();
}
}
}
}
}
}
}
PROCESS_END();
}