/* * A list of USB hubs which requires to disable the power * to the port before starting the testing procedures.
*/ staticconststruct usb_device_id ehset_hub_list[] = {
{ USB_DEVICE(0x0424, 0x4502) },
{ USB_DEVICE(0x0424, 0x4913) },
{ USB_DEVICE(0x0451, 0x8027) },
{ }
};
staticint ehset_prepare_port_for_testing(struct usb_device *hub_udev, u16 portnum)
{ int ret = 0;
/* * The USB2.0 spec chapter 11.24.2.13 says that the USB port which is * going under test needs to be put in suspend before sending the * test command. Most hubs don't enforce this precondition, but there * are some hubs which needs to disable the power to the port before * starting the test.
*/ if (usb_device_match_id(hub_udev, ehset_hub_list)) {
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_CLEAR_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_ENABLE,
portnum, NULL, 0, 1000, GFP_KERNEL); /* * Wait for the port to be disabled. It's an arbitrary value * which worked every time.
*/
msleep(100);
} else { /* * For the hubs which are compliant with the spec, * put the port in SUSPEND.
*/
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_SUSPEND,
portnum, NULL, 0, 1000, GFP_KERNEL);
} return ret;
}
switch (test_pid) { case TEST_SE0_NAK_PID:
ret = ehset_prepare_port_for_testing(hub_udev, portnum); if (ret < 0) break;
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_TEST,
(USB_TEST_SE0_NAK << 8) | portnum,
NULL, 0, 1000, GFP_KERNEL); break; case TEST_J_PID:
ret = ehset_prepare_port_for_testing(hub_udev, portnum); if (ret < 0) break;
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_TEST,
(USB_TEST_J << 8) | portnum, NULL, 0,
1000, GFP_KERNEL); break; case TEST_K_PID:
ret = ehset_prepare_port_for_testing(hub_udev, portnum); if (ret < 0) break;
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_TEST,
(USB_TEST_K << 8) | portnum, NULL, 0,
1000, GFP_KERNEL); break; case TEST_PACKET_PID:
ret = ehset_prepare_port_for_testing(hub_udev, portnum); if (ret < 0) break;
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_TEST,
(USB_TEST_PACKET << 8) | portnum,
NULL, 0, 1000, GFP_KERNEL); break; case TEST_HS_HOST_PORT_SUSPEND_RESUME: /* Test: wait for 15secs -> suspend -> 15secs delay -> resume */
msleep(15 * 1000);
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_SUSPEND,
portnum, NULL, 0, 1000, GFP_KERNEL); if (ret < 0) break;
msleep(15 * 1000);
ret = usb_control_msg_send(hub_udev, 0, USB_REQ_CLEAR_FEATURE,
USB_RT_PORT, USB_PORT_FEAT_SUSPEND,
portnum, NULL, 0, 1000, GFP_KERNEL); break; case TEST_SINGLE_STEP_GET_DEV_DESC: /* Test: wait for 15secs -> GetDescriptor request */
msleep(15 * 1000);
ret = usb_control_msg_recv(dev, 0, USB_REQ_GET_DESCRIPTOR,
USB_DIR_IN, USB_DT_DEVICE << 8, 0,
&buf, USB_DT_DEVICE_SIZE,
USB_CTRL_GET_TIMEOUT, GFP_KERNEL); break; case TEST_SINGLE_STEP_SET_FEATURE: /* * GetDescriptor SETUP request -> 15secs delay -> IN & STATUS * * Note, this test is only supported on root hubs since the * SetPortFeature handling can only be done inside the HCD's * hub_control callback function.
*/ if (hub_udev != dev->bus->root_hub) {
dev_err(&intf->dev, "SINGLE_STEP_SET_FEATURE test only supported on root hub\n"); break;
}
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