blob: 9afc9eecabd7967e50279fc1287913cef83b8964 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2009 Szymon Dziok
* Based on the Iriver H10 and the Philips HD1630 code
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "system.h"
#include "kernel.h"
#include "button.h"
#include "backlight.h"
#include "powermgmt.h"
#include "synaptics-mep.h"
static int int_btn = BUTTON_NONE;
static int old_pos = -1;
static int scroll_repeat = BUTTON_NONE;
static int repeat = 0;
void button_init_device(void)
{
}
/*
* Button interrupt handler
*/
void button_int(void)
{
char data[4];
int val;
int_btn = BUTTON_NONE;
val = touchpad_read_device(data, 4);
if (data[0] == MEP_BUTTON_HEADER)
{
/* Buttons packet */
if (data[1] & 0x1)
int_btn |= BUTTON_MENU;
if (data[1] & 0x2)
int_btn |= BUTTON_PLAY;
if (data[1] & 0x4)
int_btn |= BUTTON_NEXT;
if (data[1] & 0x8)
int_btn |= BUTTON_PREV;
}
else if (data[0] == MEP_ABSOLUTE_HEADER)
{
if (data[1] & MEP_FINGER)
{
/* Absolute packet - the finger is on the vertical strip.
Position ranges from 1-4095, with 1 at the bottom. */
val = ((data[1] >> 4) << 8) | data[2]; /* position */
int scr_pos = val >> 8; /* split the scrollstrip into 16 regions */
if ((old_pos<scr_pos)&&(old_pos!=-1)) int_btn = BUTTON_DOWN;
if ((old_pos>scr_pos)&&(old_pos!=-1)) int_btn = BUTTON_UP;
old_pos = scr_pos;
/* repeat button */
repeat = 0;
if (int_btn!=BUTTON_NONE)
{
if (int_btn!=scroll_repeat)
scroll_repeat = int_btn;
else repeat = BUTTON_REPEAT;
}
}
else
{
old_pos = -1;
scroll_repeat = BUTTON_NONE;
}
}
}
int button_read_device(void)
{
int buttons = int_btn;
unsigned char state;
static bool hold_button = false;
bool hold_button_old;
hold_button_old = hold_button;
hold_button = button_hold();
#ifndef BOOTLOADER
if (hold_button != hold_button_old)
{
backlight_hold_changed(hold_button);
}
#endif
/* device buttons */
if (!hold_button)
{
/* Read Record, OK, C */
state = GPIOA_INPUT_VAL;
if ((state & 0x01)==0) buttons|=BUTTON_REC;
if ((state & 0x40)==0) buttons|=BUTTON_OK;
if ((state & 0x08)==0) buttons|=BUTTON_CANCEL;
/* Read POWER button */
if ((GPIOD_INPUT_VAL & 0x40)==0) buttons|=BUTTON_POWER;
/* Scrollstrip direct button post - much better response */
if ((buttons==BUTTON_UP) || (buttons==BUTTON_DOWN))
{
queue_post(&button_queue,buttons|repeat,0);
backlight_on();
buttonlight_on();
reset_poweroff_timer();
buttons = BUTTON_NONE;
int_btn = BUTTON_NONE;
repeat = BUTTON_NONE;
}
}
else return BUTTON_NONE;
return buttons;
}
bool button_hold(void)
{
/* GPIOK 01000000B - HOLD when bit not set */
return (GPIOK_INPUT_VAL & 0x40)?false:true;
}
|
