HID: Sunplus Wireless Desktop needs report descriptor fixup

This device has reports lower logical maximum compared to the real
usages for Zoom+ and Zoom- it emits.

This patch bumps the values in the report descriptor up, and also
adjusts HID_MAX_USAGE accordingly.

Reported-by: Khelben Blackstaff <eye.of.the.8eholder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 81dc5e353dd8..f06356512067 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -381,6 +381,9 @@
 #define USB_VENDOR_ID_SUN               0x0430
 #define USB_DEVICE_ID_RARITAN_KVM_DONGLE        0xcdab
 
+#define USB_VENDOR_ID_SUNPLUS           0x04fc
+#define USB_DEVICE_ID_SUNPLUS_WDESKTOP  0x05d8
+
 #define USB_VENDOR_ID_TOPMAX            0x0663
 #define USB_DEVICE_ID_TOPMAX_COBRAPAD   0x0103
 
@@ -735,6 +738,8 @@ static const struct hid_rdesc_blacklist {
 
         { USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE, HID_QUIRK_RDESC_SAMSUNG_REMOTE },
 
+        { USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP, HID_QUIRK_RDESC_SUNPLUS_WDESKTOP },
+
         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1, HID_QUIRK_RDESC_SWAPPED_MIN_MAX },
         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2, HID_QUIRK_RDESC_SWAPPED_MIN_MAX },
 
@@ -1009,6 +1014,17 @@ static void usbhid_fixup_logitech_descriptor(unsigned char *rdesc, int rsize)
         }
 }
 
+static void usbhid_fixup_sunplus_wdesktop(unsigned char *rdesc, int rsize)
+{
+        if (rsize >= 107 && rdesc[104] == 0x26
+                         && rdesc[105] == 0x80
+                         && rdesc[106] == 0x03) {
+                printk(KERN_INFO "Fixing up Sunplus Wireless Desktop report descriptor\n");
+                rdesc[105] = rdesc[110] = 0x03;
+                rdesc[106] = rdesc[111] = 0x21;
+        }
+}
+
 /*
  * Samsung IrDA remote controller (reports as Cypress USB Mouse).
  *
@@ -1182,4 +1198,7 @@ void usbhid_fixup_report_descriptor(const u16 idVendor, const u16 idProduct,
                         __usbhid_fixup_report_descriptor(quirks, rdesc, rsize);
         }
 
+        if (quirks & HID_QUIRK_RDESC_SUNPLUS_WDESKTOP)
+                usbhid_fixup_sunplus_wdesktop(rdesc, rsize);
+
 }