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usb: host: move EH SINGLE_STEP_SET_FEATURE implementation to core
It is needed at USB Certification test for Embedded Host 2.0, and the detail is at CH6.4.1.1 of On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification. Since other USB 2.0 capable host like XHCI also need it, so move it to HCD core. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Li Jun <jun.li@nxp.com> Link: https://lore.kernel.org/r/1620452039-11694-1-git-send-email-jun.li@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Chen
Greg Kroah-Hartman
parent
9e8d268f83
commit
cbbc07e1e8
@ -2110,6 +2110,140 @@ int usb_hcd_get_frame_number (struct usb_device *udev)
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return hcd->driver->get_frame_number (hcd);
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}
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/*-------------------------------------------------------------------------*/
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#ifdef CONFIG_USB_HCD_TEST_MODE
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static void usb_ehset_completion(struct urb *urb)
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{
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struct completion *done = urb->context;
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complete(done);
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}
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/*
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* Allocate and initialize a control URB. This request will be used by the
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* EHSET SINGLE_STEP_SET_FEATURE test in which the DATA and STATUS stages
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* of the GetDescriptor request are sent 15 seconds after the SETUP stage.
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* Return NULL if failed.
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*/
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static struct urb *request_single_step_set_feature_urb(
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struct usb_device *udev,
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void *dr,
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void *buf,
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struct completion *done)
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{
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struct urb *urb;
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struct usb_hcd *hcd = bus_to_hcd(udev->bus);
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struct usb_host_endpoint *ep;
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urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!urb)
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return NULL;
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urb->pipe = usb_rcvctrlpipe(udev, 0);
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ep = (usb_pipein(urb->pipe) ? udev->ep_in : udev->ep_out)
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[usb_pipeendpoint(urb->pipe)];
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if (!ep) {
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usb_free_urb(urb);
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return NULL;
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}
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urb->ep = ep;
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urb->dev = udev;
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urb->setup_packet = (void *)dr;
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urb->transfer_buffer = buf;
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urb->transfer_buffer_length = USB_DT_DEVICE_SIZE;
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urb->complete = usb_ehset_completion;
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urb->status = -EINPROGRESS;
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urb->actual_length = 0;
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urb->transfer_flags = URB_DIR_IN;
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usb_get_urb(urb);
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atomic_inc(&urb->use_count);
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atomic_inc(&urb->dev->urbnum);
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urb->setup_dma = dma_map_single(
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hcd->self.sysdev,
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urb->setup_packet,
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sizeof(struct usb_ctrlrequest),
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DMA_TO_DEVICE);
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urb->transfer_dma = dma_map_single(
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hcd->self.sysdev,
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urb->transfer_buffer,
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urb->transfer_buffer_length,
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DMA_FROM_DEVICE);
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urb->context = done;
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return urb;
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}
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int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
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{
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int retval = -ENOMEM;
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struct usb_ctrlrequest *dr;
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struct urb *urb;
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struct usb_device *udev;
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struct usb_device_descriptor *buf;
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DECLARE_COMPLETION_ONSTACK(done);
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/* Obtain udev of the rhub's child port */
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udev = usb_hub_find_child(hcd->self.root_hub, port);
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if (!udev) {
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dev_err(hcd->self.controller, "No device attached to the RootHub\n");
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return -ENODEV;
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}
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buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
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if (!dr) {
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kfree(buf);
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return -ENOMEM;
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}
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/* Fill Setup packet for GetDescriptor */
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dr->bRequestType = USB_DIR_IN;
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dr->bRequest = USB_REQ_GET_DESCRIPTOR;
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dr->wValue = cpu_to_le16(USB_DT_DEVICE << 8);
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dr->wIndex = 0;
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dr->wLength = cpu_to_le16(USB_DT_DEVICE_SIZE);
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urb = request_single_step_set_feature_urb(udev, dr, buf, &done);
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if (!urb)
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goto cleanup;
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/* Submit just the SETUP stage */
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retval = hcd->driver->submit_single_step_set_feature(hcd, urb, 1);
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if (retval)
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goto out1;
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if (!wait_for_completion_timeout(&done, msecs_to_jiffies(2000))) {
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usb_kill_urb(urb);
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retval = -ETIMEDOUT;
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dev_err(hcd->self.controller,
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"%s SETUP stage timed out on ep0\n", __func__);
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goto out1;
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}
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msleep(15 * 1000);
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/* Complete remaining DATA and STATUS stages using the same URB */
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urb->status = -EINPROGRESS;
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usb_get_urb(urb);
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atomic_inc(&urb->use_count);
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atomic_inc(&urb->dev->urbnum);
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retval = hcd->driver->submit_single_step_set_feature(hcd, urb, 0);
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if (!retval && !wait_for_completion_timeout(&done,
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msecs_to_jiffies(2000))) {
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usb_kill_urb(urb);
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retval = -ETIMEDOUT;
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dev_err(hcd->self.controller,
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"%s IN stage timed out on ep0\n", __func__);
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}
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out1:
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usb_free_urb(urb);
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cleanup:
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kfree(dr);
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kfree(buf);
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return retval;
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}
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EXPORT_SYMBOL_GPL(ehset_single_step_set_feature);
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#endif /* CONFIG_USB_HCD_TEST_MODE */
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/*-------------------------------------------------------------------------*/
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#ifdef CONFIG_PM
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@ -1238,6 +1238,10 @@ static const struct hc_driver ehci_hc_driver = {
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* device support
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*/
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.free_dev = ehci_remove_device,
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#ifdef CONFIG_USB_HCD_TEST_MODE
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/* EH SINGLE_STEP_SET_FEATURE test support */
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.submit_single_step_set_feature = ehci_submit_single_step_set_feature,
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#endif
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};
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void ehci_init_driver(struct hc_driver *drv,
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@ -726,145 +726,6 @@ ehci_hub_descriptor (
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desc->wHubCharacteristics = cpu_to_le16(temp);
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}
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/*-------------------------------------------------------------------------*/
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#ifdef CONFIG_USB_HCD_TEST_MODE
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#define EHSET_TEST_SINGLE_STEP_SET_FEATURE 0x06
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static void usb_ehset_completion(struct urb *urb)
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{
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struct completion *done = urb->context;
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complete(done);
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}
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static int submit_single_step_set_feature(
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struct usb_hcd *hcd,
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struct urb *urb,
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int is_setup
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);
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/*
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* Allocate and initialize a control URB. This request will be used by the
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* EHSET SINGLE_STEP_SET_FEATURE test in which the DATA and STATUS stages
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* of the GetDescriptor request are sent 15 seconds after the SETUP stage.
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* Return NULL if failed.
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*/
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static struct urb *request_single_step_set_feature_urb(
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struct usb_device *udev,
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void *dr,
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void *buf,
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struct completion *done
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) {
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struct urb *urb;
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struct usb_hcd *hcd = bus_to_hcd(udev->bus);
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struct usb_host_endpoint *ep;
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urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!urb)
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return NULL;
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urb->pipe = usb_rcvctrlpipe(udev, 0);
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ep = (usb_pipein(urb->pipe) ? udev->ep_in : udev->ep_out)
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[usb_pipeendpoint(urb->pipe)];
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if (!ep) {
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usb_free_urb(urb);
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return NULL;
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}
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urb->ep = ep;
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urb->dev = udev;
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urb->setup_packet = (void *)dr;
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urb->transfer_buffer = buf;
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urb->transfer_buffer_length = USB_DT_DEVICE_SIZE;
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urb->complete = usb_ehset_completion;
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urb->status = -EINPROGRESS;
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urb->actual_length = 0;
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urb->transfer_flags = URB_DIR_IN;
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usb_get_urb(urb);
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atomic_inc(&urb->use_count);
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atomic_inc(&urb->dev->urbnum);
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urb->setup_dma = dma_map_single(
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hcd->self.sysdev,
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urb->setup_packet,
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sizeof(struct usb_ctrlrequest),
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DMA_TO_DEVICE);
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urb->transfer_dma = dma_map_single(
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hcd->self.sysdev,
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urb->transfer_buffer,
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urb->transfer_buffer_length,
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DMA_FROM_DEVICE);
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urb->context = done;
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return urb;
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}
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static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
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{
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int retval = -ENOMEM;
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struct usb_ctrlrequest *dr;
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struct urb *urb;
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struct usb_device *udev;
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struct ehci_hcd *ehci = hcd_to_ehci(hcd);
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struct usb_device_descriptor *buf;
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DECLARE_COMPLETION_ONSTACK(done);
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/* Obtain udev of the rhub's child port */
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udev = usb_hub_find_child(hcd->self.root_hub, port);
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if (!udev) {
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ehci_err(ehci, "No device attached to the RootHub\n");
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return -ENODEV;
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}
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buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
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if (!dr) {
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kfree(buf);
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return -ENOMEM;
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}
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/* Fill Setup packet for GetDescriptor */
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dr->bRequestType = USB_DIR_IN;
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dr->bRequest = USB_REQ_GET_DESCRIPTOR;
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dr->wValue = cpu_to_le16(USB_DT_DEVICE << 8);
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dr->wIndex = 0;
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dr->wLength = cpu_to_le16(USB_DT_DEVICE_SIZE);
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urb = request_single_step_set_feature_urb(udev, dr, buf, &done);
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if (!urb)
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goto cleanup;
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/* Submit just the SETUP stage */
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retval = submit_single_step_set_feature(hcd, urb, 1);
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if (retval)
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goto out1;
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if (!wait_for_completion_timeout(&done, msecs_to_jiffies(2000))) {
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usb_kill_urb(urb);
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retval = -ETIMEDOUT;
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ehci_err(ehci, "%s SETUP stage timed out on ep0\n", __func__);
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goto out1;
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}
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msleep(15 * 1000);
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/* Complete remaining DATA and STATUS stages using the same URB */
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urb->status = -EINPROGRESS;
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usb_get_urb(urb);
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atomic_inc(&urb->use_count);
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atomic_inc(&urb->dev->urbnum);
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retval = submit_single_step_set_feature(hcd, urb, 0);
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if (!retval && !wait_for_completion_timeout(&done,
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msecs_to_jiffies(2000))) {
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usb_kill_urb(urb);
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retval = -ETIMEDOUT;
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ehci_err(ehci, "%s IN stage timed out on ep0\n", __func__);
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}
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out1:
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usb_free_urb(urb);
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cleanup:
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kfree(dr);
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kfree(buf);
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return retval;
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}
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#endif /* CONFIG_USB_HCD_TEST_MODE */
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/*-------------------------------------------------------------------------*/
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int ehci_hub_control(
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@ -1165,7 +1165,7 @@ submit_async (
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* performed; TRUE - SETUP and FALSE - IN+STATUS
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* Returns 0 if success
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*/
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static int submit_single_step_set_feature(
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static int ehci_submit_single_step_set_feature(
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struct usb_hcd *hcd,
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struct urb *urb,
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int is_setup
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@ -409,7 +409,10 @@ struct hc_driver {
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int (*find_raw_port_number)(struct usb_hcd *, int);
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/* Call for power on/off the port if necessary */
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int (*port_power)(struct usb_hcd *hcd, int portnum, bool enable);
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/* Call for SINGLE_STEP_SET_FEATURE Test for USB2 EH certification */
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#define EHSET_TEST_SINGLE_STEP_SET_FEATURE 0x06
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int (*submit_single_step_set_feature)(struct usb_hcd *,
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struct urb *, int);
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};
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static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd)
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@ -474,6 +477,14 @@ int usb_hcd_setup_local_mem(struct usb_hcd *hcd, phys_addr_t phys_addr,
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struct platform_device;
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extern void usb_hcd_platform_shutdown(struct platform_device *dev);
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#ifdef CONFIG_USB_HCD_TEST_MODE
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extern int ehset_single_step_set_feature(struct usb_hcd *hcd, int port);
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#else
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static inline int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
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{
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return 0;
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}
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#endif /* CONFIG_USB_HCD_TEST_MODE */
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#ifdef CONFIG_USB_PCI
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struct pci_dev;
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