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implement alternate setInterface() request

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mostly forward these request (recipient = interface) to class driver.
This commit is contained in:
hathach
2020-04-15 17:51:02 +07:00
parent d315393fbb
commit caa1dceed9
2 changed files with 120 additions and 79 deletions
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37
src/device/usbd.c
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@@ -571,40 +571,9 @@ static bool process_control_request(uint8_t rhport, tusb_control_request_t const
uint8_t const drvid = _usbd_dev.itf2drv[itf];
TU_VERIFY(drvid < USBD_CLASS_DRIVER_COUNT);
if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD)
{
switch ( p_request->bRequest )
{
case TUSB_REQ_GET_INTERFACE:
{
// TODO not support alternate interface yet
uint8_t alternate = 0;
tud_control_xfer(rhport, p_request, &alternate, 1);
}
break;
case TUSB_REQ_SET_INTERFACE:
{
uint8_t const alternate = (uint8_t) p_request->wValue;
(void) alternate;
// TODO not support alternate interface yet
// TU_ASSERT(alternate == 0);
tud_control_status(rhport, p_request);
}
break;
default:
// forward to class driver: "STD request to Interface"
// GET HID REPORT DESCRIPTOR falls into this case
TU_VERIFY(invoke_class_control(rhport, drvid, p_request));
break;
}
}else
{
// forward to class driver: "non-STD request to Interface"
TU_VERIFY(invoke_class_control(rhport, drvid, p_request));
}
// all requests to Interface (STD or Class) is forwarded to class driver.
// notable requests are: GET HID REPORT DESCRIPTOR, SET_INTERFACE, GET_INTERFACE
TU_VERIFY(invoke_class_control(rhport, drvid, p_request));
}
break;