static void usb_handle_get_desc(struct usb_setup_req *req)
{
switch (req->wValue) {
case USB_DESC_VALUE(USB_DESC_DEVICE, 0):
usb_send_desc(_dev00, min(sizeof(_dev00),req->wLength));
break;
case USB_DESC_VALUE(USB_DESC_CONFIG, 0):
usb_send_desc(_cfg00, min(sizeof(_cfg00),req->wLength));
break;
case USB_DESC_VALUE(USB_DESC_STRING, 0):
usb_send_desc(lang_id, min(sizeof(lang_id),req->wLength));
break;
case USB_DESC_VALUE(USB_DESC_STRING, 1):
usb_send_desc(mfg_string, min(sizeof(mfg_string),req->wLength));
break;
case USB_DESC_VALUE(USB_DESC_STRING, 2):
usb_send_desc(prod_string, min(sizeof(prod_string),req->wLength));
break;
default:
usb_debug("unknown desc: %h\n", req->wValue);
usb_nak(&usb_ep_data[0]);
break;
}
}
static bool
std_req(setup_t *sp)
{
switch(sp->req)
{
case SR_SET_ADDRESS:
PUTS("set_addr\n");
rregn(FNADDR, NULL, 0, true);
break;
case SR_GET_DESCRIPTOR:
PUTS("get_desc: ");
usb_send_desc(sp);
break;
case SR_SET_FEATURE:
/* this either sets that RWU is to be enabled or to halt an EP,
* which is mandatory for bulk and interrupt EPs */
PUTS("set_feature\n");
break;
case SR_CLEAR_FEATURE:
/* clear one of the features which have been set by SET_FEATURE */
PUTS("clear_feature\n");
break;
case SR_GET_STATUS:
PUTS("get_status\n");
get_status(sp);
break;
case SR_SET_INTERFACE:
/* this is used to set alternative interfaces. For example when
* the CDC device will be put up */
PUTS("setif");
ACK();
break;
case SR_GET_INTERFACE:
PUTS("getif");
/* always report the same alternative: 1 */
{
uint8_t i = 0x01;
reg_t st = {0x00};
do { rreg(EPIRQ, &st); } while( !st.EPIRQ.IN0BAVIRQ );
wregn(EP0FIFO, &i, sizeof(uint8_t), false);
i=sizeof(uint8_t);
wregn(EP0BC, &i, i, true);
}
break;
case SR_SET_CONFIGURATION:
PUTS("set_conf\n");
usbdev.status.configuration = sp->asconfreq.conf;
ACK();
return true;
break;
case SR_GET_CONFIGURATION:
PUTS("get_conf\n");
{
uint8_t len = sizeof(usbdev.status.configuration);
reg_t st = {0x00};
do { rreg(EPIRQ, &st); } while( !st.EPIRQ.IN0BAVIRQ );
wregn(EP0FIFO, &usbdev.status.configuration, len, false);
wregn(EP0BC, &len, sizeof(len), true);
}
break;
default:
PUTS("unknown std_req()");
STALLEP0();
}
return false;
}