Shinichiro Nakamura / Mbed 2 deprecated PS2_TestProgram

A test program for PS2 library.

Dependencies:   mbed

mylib/PS2/PS2Mouse.cpp@4:47b51250a168, 2010-10-13 (annotated)

Committer:
shintamainjp
Date:
Wed Oct 13 10:50:55 2010 +0000
Revision:
4:47b51250a168
First version.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shintamainjp 4:47b51250a168 1 /**
shintamainjp 4:47b51250a168 2 * PS/2 mouse interface control class (Version 0.0.1)
shintamainjp 4:47b51250a168 3 *
shintamainjp 4:47b51250a168 4 * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
shintamainjp 4:47b51250a168 5 * http://shinta.main.jp/
shintamainjp 4:47b51250a168 6 */
shintamainjp 4:47b51250a168 7 #include "PS2Mouse.h"
shintamainjp 4:47b51250a168 8
shintamainjp 4:47b51250a168 9 PS2Mouse::PS2Mouse(PinName clk_pin, PinName dat_pin)
shintamainjp 4:47b51250a168 10 : ps2ms_init(clk_pin, dat_pin), ps2ms(clk_pin, dat_pin) {
shintamainjp 4:47b51250a168 11 cnt = 0;
shintamainjp 4:47b51250a168 12 }
shintamainjp 4:47b51250a168 13
shintamainjp 4:47b51250a168 14 PS2Mouse::~PS2Mouse() {
shintamainjp 4:47b51250a168 15 }
shintamainjp 4:47b51250a168 16
shintamainjp 4:47b51250a168 17 bool PS2Mouse::processing(mouse_event_t *p) {
shintamainjp 4:47b51250a168 18 bool emit = false;
shintamainjp 4:47b51250a168 19 for (int i = 0; i < 4; i++) {
shintamainjp 4:47b51250a168 20 const int c = ps2ms.getc();
shintamainjp 4:47b51250a168 21 if (0 <= c) {
shintamainjp 4:47b51250a168 22 switch (cnt % 4) {
shintamainjp 4:47b51250a168 23 case 0:
shintamainjp 4:47b51250a168 24 mi.byte1.byte = c;
shintamainjp 4:47b51250a168 25 /*
shintamainjp 4:47b51250a168 26 * Check and reset a buffer if state is wrong.
shintamainjp 4:47b51250a168 27 */
shintamainjp 4:47b51250a168 28 if (mi.byte1.bit.always1 == 0) {
shintamainjp 4:47b51250a168 29 cnt = 0;
shintamainjp 4:47b51250a168 30 while (0 <= ps2ms.getc()) {
shintamainjp 4:47b51250a168 31 }
shintamainjp 4:47b51250a168 32 }
shintamainjp 4:47b51250a168 33 break;
shintamainjp 4:47b51250a168 34 case 1:
shintamainjp 4:47b51250a168 35 mi.byte2.byte = c;
shintamainjp 4:47b51250a168 36 break;
shintamainjp 4:47b51250a168 37 case 2:
shintamainjp 4:47b51250a168 38 mi.byte3.byte = c;
shintamainjp 4:47b51250a168 39 break;
shintamainjp 4:47b51250a168 40 case 3:
shintamainjp 4:47b51250a168 41 mi.byte4.byte = c;
shintamainjp 4:47b51250a168 42 /*
shintamainjp 4:47b51250a168 43 * Store a event data.
shintamainjp 4:47b51250a168 44 */
shintamainjp 4:47b51250a168 45 p->left = mi.byte1.bit.btnLeft ? true : false;
shintamainjp 4:47b51250a168 46 p->center = mi.byte1.bit.btnCenter ? true : false;
shintamainjp 4:47b51250a168 47 p->right = mi.byte1.bit.btnRight ? true : false;
shintamainjp 4:47b51250a168 48 p->x = mi.byte1.bit.signX ? (-256 + mi.byte2.byte) : mi.byte2.byte;
shintamainjp 4:47b51250a168 49 p->y = mi.byte1.bit.signY ? (-256 + mi.byte3.byte) : mi.byte3.byte;
shintamainjp 4:47b51250a168 50 p->z = mi.byte4.bit.signZ ? (-128 + mi.byte4.bit.value) : mi.byte4.bit.value;
shintamainjp 4:47b51250a168 51 emit = true;
shintamainjp 4:47b51250a168 52 break;
shintamainjp 4:47b51250a168 53 }
shintamainjp 4:47b51250a168 54 cnt++;
shintamainjp 4:47b51250a168 55 }
shintamainjp 4:47b51250a168 56 }
shintamainjp 4:47b51250a168 57 return emit;
shintamainjp 4:47b51250a168 58 }