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usb: gadget: uvc: Replace plain printk() with dev_*()
Adding device context to the kernel log messages make them more useful. Add new uvcg_* macros based on dev_*() that print both the gadget device name and the function name. While at it, remove a commented out printk statement and an unused printk-based macro. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Tested-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
parent
8dbf9c7abe
commit
dc0f755b42
@ -232,13 +232,8 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
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struct v4l2_event v4l2_event;
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struct uvc_event *uvc_event = (void *)&v4l2_event.u.data;
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/* printk(KERN_INFO "setup request %02x %02x value %04x index %04x %04x\n",
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* ctrl->bRequestType, ctrl->bRequest, le16_to_cpu(ctrl->wValue),
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* le16_to_cpu(ctrl->wIndex), le16_to_cpu(ctrl->wLength));
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*/
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if ((ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_CLASS) {
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INFO(f->config->cdev, "invalid request type\n");
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uvcg_info(f, "invalid request type\n");
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return -EINVAL;
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}
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@ -272,7 +267,7 @@ uvc_function_get_alt(struct usb_function *f, unsigned interface)
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{
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struct uvc_device *uvc = to_uvc(f);
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INFO(f->config->cdev, "uvc_function_get_alt(%u)\n", interface);
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uvcg_info(f, "%s(%u)\n", __func__, interface);
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if (interface == uvc->control_intf)
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return 0;
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@ -291,13 +286,13 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
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struct uvc_event *uvc_event = (void *)&v4l2_event.u.data;
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int ret;
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INFO(cdev, "uvc_function_set_alt(%u, %u)\n", interface, alt);
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uvcg_info(f, "%s(%u, %u)\n", __func__, interface, alt);
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if (interface == uvc->control_intf) {
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if (alt)
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return -EINVAL;
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INFO(cdev, "reset UVC Control\n");
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uvcg_info(f, "reset UVC Control\n");
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usb_ep_disable(uvc->control_ep);
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if (!uvc->control_ep->desc)
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@ -348,7 +343,7 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
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if (!uvc->video.ep)
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return -EINVAL;
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INFO(cdev, "reset UVC\n");
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uvcg_info(f, "reset UVC\n");
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usb_ep_disable(uvc->video.ep);
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ret = config_ep_by_speed(f->config->cdev->gadget,
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@ -373,7 +368,7 @@ uvc_function_disable(struct usb_function *f)
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struct uvc_device *uvc = to_uvc(f);
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struct v4l2_event v4l2_event;
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INFO(f->config->cdev, "uvc_function_disable\n");
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uvcg_info(f, "%s()\n", __func__);
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memset(&v4l2_event, 0, sizeof(v4l2_event));
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v4l2_event.type = UVC_EVENT_DISCONNECT;
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@ -392,21 +387,19 @@ uvc_function_disable(struct usb_function *f)
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void
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uvc_function_connect(struct uvc_device *uvc)
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{
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struct usb_composite_dev *cdev = uvc->func.config->cdev;
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int ret;
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if ((ret = usb_function_activate(&uvc->func)) < 0)
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INFO(cdev, "UVC connect failed with %d\n", ret);
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uvcg_info(&uvc->func, "UVC connect failed with %d\n", ret);
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}
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void
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uvc_function_disconnect(struct uvc_device *uvc)
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{
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struct usb_composite_dev *cdev = uvc->func.config->cdev;
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int ret;
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if ((ret = usb_function_deactivate(&uvc->func)) < 0)
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INFO(cdev, "UVC disconnect failed with %d\n", ret);
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uvcg_info(&uvc->func, "UVC disconnect failed with %d\n", ret);
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}
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/* --------------------------------------------------------------------------
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@ -605,7 +598,7 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
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struct f_uvc_opts *opts;
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int ret = -EINVAL;
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INFO(cdev, "uvc_function_bind\n");
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uvcg_info(f, "%s()\n", __func__);
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opts = fi_to_f_uvc_opts(f->fi);
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/* Sanity check the streaming endpoint module parameters.
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@ -618,8 +611,8 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
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if (opts->streaming_maxburst &&
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(opts->streaming_maxpacket % 1024) != 0) {
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opts->streaming_maxpacket = roundup(opts->streaming_maxpacket, 1024);
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INFO(cdev, "overriding streaming_maxpacket to %d\n",
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opts->streaming_maxpacket);
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uvcg_info(f, "overriding streaming_maxpacket to %d\n",
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opts->streaming_maxpacket);
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}
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/* Fill in the FS/HS/SS Video Streaming specific descriptors from the
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@ -658,7 +651,7 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
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/* Allocate endpoints. */
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ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
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if (!ep) {
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INFO(cdev, "Unable to allocate control EP\n");
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uvcg_info(f, "Unable to allocate control EP\n");
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goto error;
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}
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uvc->control_ep = ep;
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@ -672,7 +665,7 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
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ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
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if (!ep) {
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INFO(cdev, "Unable to allocate streaming EP\n");
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uvcg_info(f, "Unable to allocate streaming EP\n");
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goto error;
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}
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uvc->video.ep = ep;
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@ -745,19 +738,19 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
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uvc->control_req->context = uvc;
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if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
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printk(KERN_INFO "v4l2_device_register failed\n");
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uvcg_err(f, "failed to register V4L2 device\n");
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goto error;
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}
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/* Initialise video. */
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ret = uvcg_video_init(&uvc->video);
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ret = uvcg_video_init(&uvc->video, uvc);
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if (ret < 0)
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goto error;
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/* Register a V4L2 device. */
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ret = uvc_register_video(uvc);
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if (ret < 0) {
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printk(KERN_INFO "Unable to register video device\n");
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uvcg_err(f, "failed to register video device\n");
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goto error;
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}
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@ -894,7 +887,7 @@ static void uvc_unbind(struct usb_configuration *c, struct usb_function *f)
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struct usb_composite_dev *cdev = c->cdev;
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struct uvc_device *uvc = to_uvc(f);
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INFO(cdev, "%s\n", __func__);
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uvcg_info(f, "%s\n", __func__);
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device_remove_file(&uvc->vdev.dev, &dev_attr_function_name);
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video_unregister_device(&uvc->vdev);
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@ -24,6 +24,7 @@
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struct usb_ep;
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struct usb_request;
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struct uvc_descriptor_header;
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struct uvc_device;
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/* ------------------------------------------------------------------------
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* Debugging, printing and logging
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@ -51,14 +52,12 @@ extern unsigned int uvc_gadget_trace_param;
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printk(KERN_DEBUG "uvcvideo: " msg); \
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} while (0)
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#define uvc_warn_once(dev, warn, msg...) \
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do { \
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if (!test_and_set_bit(warn, &dev->warnings)) \
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printk(KERN_INFO "uvcvideo: " msg); \
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} while (0)
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#define uvc_printk(level, msg...) \
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printk(level "uvcvideo: " msg)
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#define uvcg_dbg(f, fmt, args...) \
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dev_dbg(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
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#define uvcg_info(f, fmt, args...) \
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dev_info(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
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#define uvcg_err(f, fmt, args...) \
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dev_err(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
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/* ------------------------------------------------------------------------
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* Driver specific constants
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@ -73,6 +72,7 @@ extern unsigned int uvc_gadget_trace_param;
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*/
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struct uvc_video {
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struct uvc_device *uvc;
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struct usb_ep *ep;
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/* Frame parameters */
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@ -115,8 +115,8 @@ uvc_v4l2_set_format(struct file *file, void *fh, struct v4l2_format *fmt)
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}
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if (i == ARRAY_SIZE(uvc_formats)) {
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printk(KERN_INFO "Unsupported format 0x%08x.\n",
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fmt->fmt.pix.pixelformat);
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uvcg_info(&uvc->func, "Unsupported format 0x%08x.\n",
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fmt->fmt.pix.pixelformat);
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return -EINVAL;
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}
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@ -131,7 +131,9 @@ static int uvcg_video_ep_queue(struct uvc_video *video, struct usb_request *req)
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ret = usb_ep_queue(video->ep, req, GFP_ATOMIC);
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if (ret < 0) {
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printk(KERN_INFO "Failed to queue request (%d).\n", ret);
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uvcg_err(&video->uvc->func, "Failed to queue request (%d).\n",
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ret);
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/* Isochronous endpoints can't be halted. */
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if (usb_endpoint_xfer_bulk(video->ep->desc))
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usb_ep_set_halt(video->ep);
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@ -184,13 +186,14 @@ uvc_video_complete(struct usb_ep *ep, struct usb_request *req)
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break;
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case -ESHUTDOWN: /* disconnect from host. */
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printk(KERN_DEBUG "VS request cancelled.\n");
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uvcg_dbg(&video->uvc->func, "VS request cancelled.\n");
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uvcg_queue_cancel(queue, 1);
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goto requeue;
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default:
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printk(KERN_INFO "VS request completed with status %d.\n",
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req->status);
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uvcg_info(&video->uvc->func,
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"VS request completed with status %d.\n",
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req->status);
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uvcg_queue_cancel(queue, 0);
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goto requeue;
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}
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@ -354,8 +357,8 @@ int uvcg_video_enable(struct uvc_video *video, int enable)
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int ret;
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if (video->ep == NULL) {
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printk(KERN_INFO "Video enable failed, device is "
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"uninitialized.\n");
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uvcg_info(&video->uvc->func,
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"Video enable failed, device is uninitialized.\n");
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return -ENODEV;
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}
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@ -387,11 +390,12 @@ int uvcg_video_enable(struct uvc_video *video, int enable)
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/*
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* Initialize the UVC video stream.
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*/
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int uvcg_video_init(struct uvc_video *video)
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int uvcg_video_init(struct uvc_video *video, struct uvc_device *uvc)
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{
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INIT_LIST_HEAD(&video->req_free);
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spin_lock_init(&video->req_lock);
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video->uvc = uvc;
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video->fcc = V4L2_PIX_FMT_YUYV;
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video->bpp = 16;
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video->width = 320;
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@ -18,6 +18,6 @@ int uvcg_video_pump(struct uvc_video *video);
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int uvcg_video_enable(struct uvc_video *video, int enable);
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int uvcg_video_init(struct uvc_video *video);
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int uvcg_video_init(struct uvc_video *video, struct uvc_device *uvc);
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#endif /* __UVC_VIDEO_H__ */
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