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-rw-r--r--drivers/usb/input/hid-core.c22
-rw-r--r--drivers/usb/input/hid-input.c8
-rw-r--r--drivers/usb/input/hid.h1
3 files changed, 31 insertions, 0 deletions
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 5f52979..1a2d203 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -1450,6 +1450,9 @@ void hid_init_reports(struct hid_device *hid)
#define USB_VENDOR_ID_APPLE 0x05ac
#define USB_DEVICE_ID_APPLE_POWERMOUSE 0x0304
+#define USB_VENDOR_ID_CHERRY 0x046a
+#define USB_DEVICE_ID_CHERRY_CYMOTION 0x0023
+
/*
* Alphabetically sorted blacklist by quirk type.
*/
@@ -1580,6 +1583,8 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
+ { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
+
{ 0, 0 }
};
@@ -1626,6 +1631,20 @@ static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);
}
+/*
+ * Cherry Cymotion keyboard have an invalid HID report descriptor,
+ * that needs fixing before we can parse it.
+ */
+
+static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize)
+{
+ if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
+ info("Fixing up Cherry Cymotion report descriptor");
+ rdesc[11] = rdesc[16] = 0xff;
+ rdesc[12] = rdesc[17] = 0x03;
+ }
+}
+
static struct hid_device *usb_hid_configure(struct usb_interface *intf)
{
struct usb_host_interface *interface = intf->cur_altsetting;
@@ -1673,6 +1692,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
return NULL;
}
+ if ((quirks & HID_QUIRK_CYMOTION))
+ hid_fixup_cymotion_descriptor(rdesc, rsize);
+
#ifdef DEBUG_DATA
printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
for (n = 0; n < rsize; n++)
diff --git a/drivers/usb/input/hid-input.c b/drivers/usb/input/hid-input.c
index 192a03b..9e5a80b 100644
--- a/drivers/usb/input/hid-input.c
+++ b/drivers/usb/input/hid-input.c
@@ -289,11 +289,19 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case 0x226: map_key_clear(KEY_STOP); break;
case 0x227: map_key_clear(KEY_REFRESH); break;
case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
+ case 0x233: map_key_clear(KEY_SCROLLUP); break;
+ case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
case 0x238: map_rel(REL_HWHEEL); break;
case 0x279: map_key_clear(KEY_REDO); break;
case 0x289: map_key_clear(KEY_REPLY); break;
case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
case 0x28c: map_key_clear(KEY_SEND); break;
+
+ /* Reported on a Cherry Cymotion keyboard */
+ case 0x301: map_key_clear(KEY_PROG1); break;
+ case 0x302: map_key_clear(KEY_PROG2); break;
+ case 0x303: map_key_clear(KEY_PROG3); break;
+
default: goto ignore;
}
break;
diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h
index ee48a22..335316c 100644
--- a/drivers/usb/input/hid.h
+++ b/drivers/usb/input/hid.h
@@ -246,6 +246,7 @@ struct hid_item {
#define HID_QUIRK_2WHEEL_MOUSE_HACK_5 0x100
#define HID_QUIRK_2WHEEL_MOUSE_HACK_ON 0x200
#define HID_QUIRK_2WHEEL_POWERMOUSE 0x400
+#define HID_QUIRK_CYMOTION 0x800
/*
* This is the global environment of the parser. This information is
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