Input: hanwang - make compatible with xf86-input-wacom driver

Add necessary events so that Hanwang Art Master III tablet can be handled
by the stock xf86-input-wacom driver.

Signed-off-by: Xing Wei <weixing@hanwang.com.cn>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c
index 3554e30ab41b16aa74284b8a591bf59ccce48976..0701d948cdf3ed6e87641fb6244c68aef0563d9a 100644 (file)
--- a/drivers/input/tablet/hanwang.c
+++ b/drivers/input/tablet/hanwang.c
@@ -44,6 +44,13 @@ MODULE_LICENSE(DRIVER_LICENSE);
 
 #define ART_MASTERIII_PKGLEN_MAX       10
 
+/* device IDs */
+#define STYLUS_DEVICE_ID       0x02
+#define TOUCH_DEVICE_ID                0x03
+#define CURSOR_DEVICE_ID       0x06
+#define ERASER_DEVICE_ID       0x0A
+#define PAD_DEVICE_ID          0x0F
+
 /* match vendor and interface info  */
 #define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
        .match_flags = USB_DEVICE_ID_MATCH_VENDOR \
@@ -61,6 +68,7 @@ struct hanwang {
        struct urb *irq;
        const struct hanwang_features *features;
        unsigned int current_tool;
+       unsigned int current_id;
        char name[64];
        char phys[32];
 };
@@ -86,16 +94,22 @@ static const struct hanwang_features features_array[] = {
 };
 
 static const int hw_eventtypes[] = {
-       EV_KEY, EV_ABS,
+       EV_KEY, EV_ABS, EV_MSC,
 };
 
 static const int hw_absevents[] = {
-       ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL, ABS_PRESSURE,
+       ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL,
+       ABS_PRESSURE, ABS_MISC,
 };
 
 static const int hw_btnevents[] = {
-       BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_MOUSE,
-       BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8
+       BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER,
+       BTN_TOOL_MOUSE, BTN_TOOL_FINGER,
+       BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8,
+};
+
+static const int hw_mscevents[] = {
+       MSC_SERIAL,
 };
 
 static void hanwang_parse_packet(struct hanwang *hanwang)
@@ -109,20 +123,24 @@ static void hanwang_parse_packet(struct hanwang *hanwang)
        case 0x02:      /* data packet */
                switch (data[1]) {
                case 0x80:      /* tool prox out */
+                       hanwang->current_id = 0;
                        input_report_key(input_dev, hanwang->current_tool, 0);
                        break;
 
                case 0xc2:      /* first time tool prox in */
                        switch (data[3] & 0xf0) {
                        case 0x20:
+                               hanwang->current_id = STYLUS_DEVICE_ID;
                                hanwang->current_tool = BTN_TOOL_PEN;
                                input_report_key(input_dev, BTN_TOOL_PEN, 1);
                                break;
                        case 0xa0:
+                               hanwang->current_id = ERASER_DEVICE_ID;
                                hanwang->current_tool = BTN_TOOL_RUBBER;
                                input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
                                break;
                        default:
+                               hanwang->current_id = 0;
                                dev_dbg(&dev->dev,
                                        "unknown tablet tool %02x ", data[0]);
                                break;
@@ -144,15 +162,23 @@ static void hanwang_parse_packet(struct hanwang *hanwang)
                        input_report_key(input_dev, BTN_STYLUS2, data[1] & 0x04);
                        break;
                }
+               input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
+               input_event(input_dev, EV_MSC, MSC_SERIAL,
+                               hanwang->features->pid);
                break;
 
        case 0x0c:
                /* roll wheel */
+               hanwang->current_id = PAD_DEVICE_ID;
+               input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
+                                               data[2] || data[3]);
                input_report_abs(input_dev, ABS_WHEEL, data[1]);
                input_report_key(input_dev, BTN_0, data[2]);
                for (i = 0; i < 8; i++)
                        input_report_key(input_dev,
                                         BTN_1 + i, data[3] & (1 << i));
+               input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
+               input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff);
                break;
 
        default:
@@ -287,6 +313,9 @@ static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id
        for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
                __set_bit(hw_btnevents[i], input_dev->keybit);
 
+       for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i)
+               __set_bit(hw_mscevents[i], input_dev->mscbit);
+
        input_set_abs_params(input_dev, ABS_X,
                             0, hanwang->features->max_x, 4, 0);
        input_set_abs_params(input_dev, ABS_Y,