Input: wacom - handle Graphire BT tablets in wacom.ko

First, merge the Graphire BT tablet.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Tested-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 18154a5459b5..c21e58ba0693 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -265,6 +265,39 @@ static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
 static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
                 struct wacom_features *features)
 {
+        struct wacom *wacom = hid_get_drvdata(hdev);
+        int ret;
+        u8 rep_data[2];
+
+        switch (features->type) {
+        case GRAPHIRE_BT:
+                rep_data[0] = 0x03;
+                rep_data[1] = 0x00;
+                ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
+                                        rep_data[0], rep_data, 2, 3);
+
+                if (ret >= 0) {
+                        rep_data[0] = speed == 0 ? 0x05 : 0x06;
+                        rep_data[1] = 0x00;
+
+                        ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
+                                                rep_data[0], rep_data, 2, 3);
+
+                        if (ret >= 0) {
+                                wacom->wacom_wac.bt_high_speed = speed;
+                                return 0;
+                        }
+                }
+
+                /*
+                 * Note that if the raw queries fail, it's not a hard failure
+                 * and it is safe to continue
+                 */
+                hid_warn(hdev, "failed to poke device, command %d, err %d\n",
+                         rep_data[0], ret);
+                break;
+        }
+
         return 0;
 }