Commit 0a88d607 authored by Dmitry Torokhov's avatar Dmitry Torokhov

Input: psmouse - use switch statement in psmouse_process_byte()

Instead of a series mostly exclusive "if" statements testing protocol type
of the mouse let's use "switch" statement.
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarPali Rohár <pali.rohar@gmail.com>
Tested-by: default avatarMarcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: default avatarTill <till2.schaefer@uni-dortmund.de>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 6a13feb9
......@@ -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.
case PSMOUSE_CORTRON:
/*
* Cortron PS2 Trackball reports SIDE button in the
* 4th bit of the first byte.
*/
if (psmouse->type == PSMOUSE_CORTRON) {
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);
......
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