HID: make raw reports possible for both feature and output reports

In commit 2da31939a42 ("Bluetooth: Implement raw output support for HIDP
layer"), support for Bluetooth hid_output_raw_report was added, but it
pushes the data to the intr socket instead of the ctrl one. This has been
fixed by 6bf8268f9a91f1 ("Bluetooth: Use the control channel for raw HID reports")

Still, it is necessary to distinguish whether the report in question should be
either FEATURE or OUTPUT. For this, we have to extend the generic HID API,
so that hid_output_raw_report() callback provides means to specify this
value so that it can be passed down to lower level hardware drivers (currently
Bluetooth and USB).

Based on original patch by Bastien Nocera <hadess@hadess.net>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

2 files changed, 4 insertions, 3 deletions

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index cdd136942bca..d04476700b7b 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -134,7 +134,7 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
                 goto out;
         }
 
-        ret = dev->hid_output_raw_report(dev, buf, count);
+        ret = dev->hid_output_raw_report(dev, buf, count, HID_OUTPUT_REPORT);
 out:
         kfree(buf);
         return ret;
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index e2997a8d5e1b..caa16c057ce2 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -774,7 +774,8 @@ static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
         return 0;
 }
 
-static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count)
+static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count,
+                unsigned char report_type)
 {
         struct usbhid_device *usbhid = hid->driver_data;
         struct usb_device *dev = hid_to_usb_dev(hid);
@@ -785,7 +786,7 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
                 HID_REQ_SET_REPORT,
                 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-                ((HID_OUTPUT_REPORT + 1) << 8) | *buf,
+                ((report_type + 1) << 8) | *buf,
                 interface->desc.bInterfaceNumber, buf + 1, count - 1,
                 USB_CTRL_SET_TIMEOUT);