Input: wacom - parse the Bamboo device family

The Bamboo devices have multiple interfaces which need to be setup
separately. Use the HID parsing mechanism to achieve that.

Signed-off-by: Ping Cheng <pinglinux@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index e510e4f..98cba08 100644 (file)
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -195,17 +195,30 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
                                                        features->pktlen = WACOM_PKGLEN_TPC2FG;
                                                        features->device_type = BTN_TOOL_TRIPLETAP;
                                                }
-                                               features->x_max =
-                                                       get_unaligned_le16(&report[i + 3]);
-                                               features->x_phy =
-                                                       get_unaligned_le16(&report[i + 6]);
-                                               features->unit = report[i + 9];
-                                               features->unitExpo = report[i + 11];
-                                               i += 12;
+                                               if (features->type == BAMBOO_PT) {
+                                                       /* need to reset back */
+                                                       features->pktlen = WACOM_PKGLEN_BBTOUCH;
+                                                       features->device_type = BTN_TOOL_TRIPLETAP;
+                                                       features->x_phy =
+                                                               get_unaligned_le16(&report[i + 5]);
+                                                       features->x_max =
+                                                               get_unaligned_le16(&report[i + 8]);
+                                                       i += 15;
+                                               } else {
+                                                       features->x_max =
+                                                               get_unaligned_le16(&report[i + 3]);
+                                                       features->x_phy =
+                                                               get_unaligned_le16(&report[i + 6]);
+                                                       features->unit = report[i + 9];
+                                                       features->unitExpo = report[i + 11];
+                                                       i += 12;
+                                               }
                                        } else if (pen) {
                                                /* penabled only accepts exact bytes of data */
                                                if (features->type == TABLETPC2FG)
                                                        features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+                                               if (features->type == BAMBOO_PT)
+                                                       features->pktlen = WACOM_PKGLEN_BBFUN;
                                                features->device_type = BTN_TOOL_PEN;
                                                features->x_max =
                                                        get_unaligned_le16(&report[i + 3]);
@@ -234,6 +247,15 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
                                                        features->y_phy =
                                                                get_unaligned_le16(&report[i + 6]);
                                                        i += 7;
+                                               } else if (features->type == BAMBOO_PT) {
+                                                       /* need to reset back */
+                                                       features->pktlen = WACOM_PKGLEN_BBTOUCH;
+                                                       features->device_type = BTN_TOOL_TRIPLETAP;
+                                                       features->y_phy =
+                                                               get_unaligned_le16(&report[i + 3]);
+                                                       features->y_max =
+                                                               get_unaligned_le16(&report[i + 6]);
+                                                       i += 12;
                                                } else {
                                                        features->y_max =
                                                                features->x_max;
@@ -245,6 +267,8 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
                                                /* penabled only accepts exact bytes of data */
                                                if (features->type == TABLETPC2FG)
                                                        features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+                                               if (features->type == BAMBOO_PT)
+                                                       features->pktlen = WACOM_PKGLEN_BBFUN;
                                                features->device_type = BTN_TOOL_PEN;
                                                features->y_max =
                                                        get_unaligned_le16(&report[i + 3]);
@@ -341,7 +365,8 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
        features->distance_fuzz = 0;
 
        /* only Tablet PCs need to retrieve the info */
-       if ((features->type != TABLETPC) && (features->type != TABLETPC2FG))
+       if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
+           (features->type != BAMBOO_PT))
                goto out;
 
        if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) {
@@ -499,7 +524,8 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
        strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
 
-       if (features->type == TABLETPC || features->type == TABLETPC2FG) {
+       if (features->type == TABLETPC || features->type == TABLETPC2FG ||
+           features->type == BAMBOO_PT) {
                /* Append the device type to the name */
                strlcat(wacom_wac->name,
                        features->device_type == BTN_TOOL_PEN ?

diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index d769e9a..fb30895 100644 (file)
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -21,6 +21,7 @@
 #define WACOM_PKGLEN_INTUOS    10
 #define WACOM_PKGLEN_TPC1FG     5
 #define WACOM_PKGLEN_TPC2FG    14
+#define WACOM_PKGLEN_BBTOUCH   20
 
 /* device IDs */
 #define STYLUS_DEVICE_ID       0x02
@@ -44,6 +45,7 @@ enum {
        PTU,
        PL,
        DTU,
+       BAMBOO_PT,
        INTUOS,
        INTUOS3S,
        INTUOS3,