implement hcd device close
@@ -64,6 +64,8 @@ enum {
USB_SIE_CTRL_PULLDOWN_EN_BITS | USB_SIE_CTRL_EP0_INT_1BUF_BITS
};
+enum { ADDR_INVALID = 0xFFu };
+
static struct hw_endpoint *get_dev_ep(uint8_t dev_addr, uint8_t ep_addr)
{
uint8_t num = tu_edpt_number(ep_addr);
@@ -346,6 +348,21 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t dev_addr, uint8_t
}
}
+// return struct hw_endpoint* pointing to the endpoint in the pool or NULL if the dev_addr is not found
+static struct hw_endpoint *_hw_find_first_endpoint(uint8_t dev_addr)
+{
+ struct hw_endpoint *ep = NULL;
+ for (uint i = 1; i < TU_ARRAY_SIZE(ep_pool); i++)
+ {
+ ep = &ep_pool[i];
+ if (ep->dev_addr == dev_addr && ep->configured)
+ {
+ return ep;
+ }
+ }
+ return NULL;
+}
+
//--------------------------------------------------------------------+
// HCD API
//--------------------------------------------------------------------+
@@ -412,9 +429,24 @@ tusb_speed_t hcd_port_speed_get(uint8_t rhport)
// Close all opened endpoint belong to this device
void hcd_device_close(uint8_t rhport, uint8_t dev_addr)
{
- (void) rhport;
- (void) dev_addr;
+ assert(rhport == 0);
+ if (dev_addr == 0)
+ return;
+ struct hw_endpoint *ep = _hw_find_first_endpoint(dev_addr);
+ while (ep)
+ {
+ // in case it is an interrupt endpoint, disable it
+ usb_hw_clear->int_ep_ctrl = (1 << (ep->interrupt_num + 1));
+ usb_hw->int_ep_addr_ctrl[ep->interrupt_num] = 0;
+ // unconfigure the endpoint
+ ep->configured = false;
+ *ep->endpoint_control = 0;
+ *ep->buffer_control = 0;
+ hw_endpoint_reset_transfer(ep);
+ ep->dev_addr = ADDR_INVALID; // don't find this one again
+ ep = _hw_find_first_endpoint(dev_addr);
+ }
pico_trace("hcd_device_close %d\n", dev_addr);
}
