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usb gadget0: ctrl write/read loopback tests

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This is based on linux's gadget0 intel loopback tests, and also github
pr: https://github.com/libopencm3/libopencm3/pull/592

Note that this captures the currently broken control loopback issues on
dwc_otg devices.

See https://github.com/libopencm3/libopencm3/issues/873 and all linked
issues.

Current status is passing on f3, f0, and failing on f4.
This commit is contained in:
Karl Palsson
2018-05-02 23:20:44 +00:00
parent ebcf197810
commit 42e43515c6
2 changed files with 65 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
tests/gadget-zero/usb-gadget0.c
View File

@@ -280,7 +280,6 @@ static enum usbd_request_return_codes gadget0_control_request(usbd_device *usbd_
(void) usbd_dev;
(void) complete;
(void) buf;
(void) len;
ER_DPRINTF("ctrl breq: %x, bmRT: %x, windex :%x, wlen: %x, wval :%x\n",
req->bRequest, req->bmRequestType, req->wIndex, req->wLength,
req->wValue);
@@ -292,9 +291,31 @@ static enum usbd_request_return_codes gadget0_control_request(usbd_device *usbd_
state.pattern = req->wValue;
return USBD_REQ_HANDLED;
case INTEL_COMPLIANCE_WRITE:
/* accept correctly formed ctrl writes */
if (req->bmRequestType != (USB_REQ_TYPE_VENDOR|USB_REQ_TYPE_INTERFACE)) {
return USBD_REQ_NOTSUPP;
}
if (req->wValue || req->wIndex) {
return USBD_REQ_NOTSUPP;
}
if (req->wLength > sizeof(usbd_control_buffer)) {
return USBD_REQ_NOTSUPP;
}
/* ok, mark it as accepted. */
return USBD_REQ_HANDLED;
case INTEL_COMPLIANCE_READ:
ER_DPRINTF("unimplemented!");
return USBD_REQ_NOTSUPP;
if (req->bmRequestType != (USB_REQ_TYPE_IN|USB_REQ_TYPE_VENDOR|USB_REQ_TYPE_INTERFACE)) {
return USBD_REQ_NOTSUPP;
}
if (req->wValue || req->wIndex) {
return USBD_REQ_NOTSUPP;
}
if (req->wLength > sizeof(usbd_control_buffer)) {
return USBD_REQ_NOTSUPP;
}
/* ok, return what they left there earlier */
*len = req->wLength;
return USBD_REQ_HANDLED;
case GZ_REQ_SET_UNALIGNED:
state.test_unaligned = 1;
return USBD_REQ_HANDLED;
@@ -316,6 +337,9 @@ static enum usbd_request_return_codes gadget0_control_request(usbd_device *usbd_
*len = req->wValue;
}
return USBD_REQ_HANDLED;
default:
ER_DPRINTF("Unhandled request!\n");
return USBD_REQ_NOTSUPP;
}
return USBD_REQ_NEXT_CALLBACK;
}