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implement hcd device close

This commit is contained in:
rppicomidi 2021-11-12 14:58:51 -08:00 committed by hathach
parent 9775e76910
commit 06f99c220e
1 changed files with 34 additions and 2 deletions
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36
src/portable/raspberrypi/rp2040/hcd_rp2040.c
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@ -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);
}