Instead of a series mostly exclusive "if" statements testing protocol type
of the mouse let's use "switch" statement.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
drivers/input/mouse/psmouse-base.c | 65 ++++++++++++++++++--------------------
1 file changed, 31 insertions(+), 34 deletions(-)
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index ad18dab..4e43e7e 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -138,22 +138,16 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
if (psmouse->pktcnt < psmouse->pktsize)
return PSMOUSE_GOOD_DATA;
-/*
- * Full packet accumulated, process it
- */
-
-/*
- * Scroll wheel on IntelliMice, scroll buttons on NetMice
- */
+ /* Full packet accumulated, process it */
- if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS)
+ switch (psmouse->type) {
+ case PSMOUSE_IMPS:
+ /* IntelliMouse has scroll wheel */
input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
+ break;
-/*
- * Scroll wheel and buttons on IntelliMouse Explorer
- */
-
- if (psmouse->type == PSMOUSE_IMEX) {
+ case PSMOUSE_IMEX:
+ /* Scroll wheel and buttons on IntelliMouse Explorer */
switch (packet[3] & 0xC0) {
case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */
input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
@@ -168,39 +162,42 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
break;
}
- }
+ break;
-/*
- * Extra buttons on Genius NewNet 3D
- */
+ case PSMOUSE_GENPS:
+ /* Report scroll buttons on NetMice */
+ input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
- if (psmouse->type == PSMOUSE_GENPS) {
+ /* Extra buttons on Genius NewNet 3D */
input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1);
input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
- }
+ break;
-/*
- * Extra button on ThinkingMouse
- */
- if (psmouse->type == PSMOUSE_THINKPS) {
+ case PSMOUSE_THINKPS:
+ /* Extra button on ThinkingMouse */
input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
- /* Without this bit of weirdness moving up gives wildly high Y changes. */
+
+ /*
+ * Without this bit of weirdness moving up gives wildly
+ * high Y changes.
+ */
packet[1] |= (packet[0] & 0x40) << 1;
- }
+ break;
-/*
- * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first
- * byte.
- */
- if (psmouse->type == PSMOUSE_CORTRON) {
+ case PSMOUSE_CORTRON:
+ /*
+ * Cortron PS2 Trackball reports SIDE button in the
+ * 4th bit of the first byte.
+ */
input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1);
packet[0] |= 0x08;
- }
+ break;
-/*
- * Generic PS/2 Mouse
- */
+ default:
+ break;
+ }
+ /* Generic PS/2 Mouse */
input_report_key(dev, BTN_LEFT, packet[0] & 1);
input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
--
2.6.0.rc2.230.g3dd15c0
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