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authorPing Cheng <pinglinux@gmail.com>2012-11-03 12:16:13 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-11-08 09:12:29 -0800
commit3699dd7e16a9f68586a44e1efeb9708359f9c2a6 (patch)
tree5d13ff90e9895c30a77a3d6cef95c49c6012c1b8 /drivers/input/tablet
parent2be975c6d920de989ff5e4bc09ffe87e59d94662 (diff)
downloadblackbird-op-linux-3699dd7e16a9f68586a44e1efeb9708359f9c2a6.tar.gz
blackbird-op-linux-3699dd7e16a9f68586a44e1efeb9708359f9c2a6.zip
Input: wacom - clean up device type code
Use switch instead of if statement to verify device types Signed-off-by: Ping Cheng <pinglinux@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/tablet')
-rw-r--r--drivers/input/tablet/wacom_sys.c53
1 files changed, 38 insertions, 15 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 858ad446de91..67442f409174 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -386,23 +386,36 @@ static int wacom_parse_hid(struct usb_interface *intf,
if (usage == WCM_DESKTOP) {
if (finger) {
features->device_type = BTN_TOOL_FINGER;
- if (features->type == TABLETPC2FG) {
- /* need to reset back */
+
+ switch (features->type) {
+ case TABLETPC2FG:
features->pktlen = WACOM_PKGLEN_TPC2FG;
- }
+ break;
- if (features->type == MTSCREEN || features->type == WACOM_24HDT)
+ case MTSCREEN:
+ case WACOM_24HDT:
features->pktlen = WACOM_PKGLEN_MTOUCH;
+ break;
- if (features->type == BAMBOO_PT) {
- /* need to reset back */
+ case BAMBOO_PT:
features->pktlen = WACOM_PKGLEN_BBTOUCH;
+ break;
+
+ default:
+ features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+ break;
+ }
+
+ switch (features->type) {
+ case BAMBOO_PT:
features->x_phy =
get_unaligned_le16(&report[i + 5]);
features->x_max =
get_unaligned_le16(&report[i + 8]);
i += 15;
- } else if (features->type == WACOM_24HDT) {
+ break;
+
+ case WACOM_24HDT:
features->x_max =
get_unaligned_le16(&report[i + 3]);
features->x_phy =
@@ -410,7 +423,9 @@ static int wacom_parse_hid(struct usb_interface *intf,
features->unit = report[i - 1];
features->unitExpo = report[i - 3];
i += 12;
- } else {
+ break;
+
+ default:
features->x_max =
get_unaligned_le16(&report[i + 3]);
features->x_phy =
@@ -418,10 +433,11 @@ static int wacom_parse_hid(struct usb_interface *intf,
features->unit = report[i + 9];
features->unitExpo = report[i + 11];
i += 12;
+ break;
}
} else if (pen) {
/* penabled only accepts exact bytes of data */
- if (features->type == TABLETPC2FG)
+ if (features->type >= TABLETPC)
features->pktlen = WACOM_PKGLEN_GRAPHIRE;
features->device_type = BTN_TOOL_PEN;
features->x_max =
@@ -434,32 +450,39 @@ static int wacom_parse_hid(struct usb_interface *intf,
case HID_USAGE_Y:
if (usage == WCM_DESKTOP) {
if (finger) {
- int type = features->type;
-
- if (type == TABLETPC2FG || type == MTSCREEN) {
+ switch (features->type) {
+ case TABLETPC2FG:
+ case MTSCREEN:
features->y_max =
get_unaligned_le16(&report[i + 3]);
features->y_phy =
get_unaligned_le16(&report[i + 6]);
i += 7;
- } else if (type == WACOM_24HDT) {
+ break;
+
+ case WACOM_24HDT:
features->y_max =
get_unaligned_le16(&report[i + 3]);
features->y_phy =
get_unaligned_le16(&report[i - 2]);
i += 7;
- } else if (type == BAMBOO_PT) {
+ break;
+
+ case BAMBOO_PT:
features->y_phy =
get_unaligned_le16(&report[i + 3]);
features->y_max =
get_unaligned_le16(&report[i + 6]);
i += 12;
- } else {
+ break;
+
+ default:
features->y_max =
features->x_max;
features->y_phy =
get_unaligned_le16(&report[i + 3]);
i += 4;
+ break;
}
} else if (pen) {
features->y_max =
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