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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Mark Arigo
*
* 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 "button.h"
#include "backlight.h"
#include "synaptics-mep.h"
#define LOGF_ENABLE
#include "logf.h"
#define MEP_BUTTON_HEADER 0x19
#define MEP_BUTTON_ID 0x9
#define MEP_ABSOLUTE_HEADER 0x0b
static int int_btn = BUTTON_NONE;
/*
* Generate a click sound from the player (not in headphones yet)
* TODO: integrate this with the "key click" option
*/
void button_click(void)
{
GPO32_ENABLE |= 0x2000;
GPO32_VAL |= 0x2000;
udelay(1000);
GPO32_VAL &= ~0x2000;
}
#ifndef BOOTLOADER
void button_init_device(void)
{
if (!syn_get_status())
{
logf("button_init_dev: touchpad not ready");
}
}
/*
* Button interrupt handler
*/
void button_int(void)
{
int data[4];
int val, id;
int_btn = BUTTON_NONE;
if (syn_get_status())
{
/* disable interrupt while we read the touchpad */
syn_int_enable(false);
val = syn_read(data, 4);
if (val > 0)
{
val = data[0] & 0xff; /* packet header */
id = (data[1] >> 4) & 0xf; /* packet id */
logf("syn_read:");
logf(" data[0] = 0x%08x", data[0]);
logf(" data[1] = 0x%08x", data[1]);
logf(" data[2] = 0x%08x", data[2]);
logf(" data[3] = 0x%08x", data[3]);
if ((val == MEP_BUTTON_HEADER) && (id == MEP_BUTTON_ID))
{
/* Buttons packet */
if (data[1] & 0x1)
int_btn |= BUTTON_LEFT;
if (data[1] & 0x2)
int_btn |= BUTTON_RIGHT;
/* An Absolute packet should follow which we ignore */
val = syn_read(data, 4);
logf(" int_btn = 0x%04x", int_btn);
}
else if (val == MEP_ABSOLUTE_HEADER)
{
/* 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 */
logf(" pos %d", val);
logf(" z %d", data[3]);
logf(" finger %d", data[1] & 0x1);
logf(" gesture %d", data[1] & 0x2);
logf(" RelPosVld %d", data[1] & 0x4);
if(data[1] & 0x1) /* if finger on touch strip */
{
if ((val > 0) && (val <= 1365))
int_btn |= BUTTON_DOWN;
else if ((val > 1365) && (val <= 2730))
int_btn |= BUTTON_SELECT;
else if ((val > 2730) && (val <= 4095))
int_btn |= BUTTON_UP;
}
}
}
/* re-enable interrupts */
syn_int_enable(true);
}
}
#else
void button_init_device(void){}
#endif /* bootloader */
bool button_hold(void)
{
return !(GPIOJ_INPUT_VAL & 0x8);
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
static int btn_old = BUTTON_NONE;
int btn = int_btn;
/* Hold */
if(button_hold())
return BUTTON_NONE;
/* Device buttons */
if (!(GPIOA_INPUT_VAL & 0x01)) btn |= BUTTON_MENU;
if (!(GPIOA_INPUT_VAL & 0x02)) btn |= BUTTON_VOL_UP;
if (!(GPIOA_INPUT_VAL & 0x04)) btn |= BUTTON_VOL_DOWN;
if (!(GPIOA_INPUT_VAL & 0x08)) btn |= BUTTON_VIEW;
if (!(GPIOD_INPUT_VAL & 0x20)) btn |= BUTTON_PLAYLIST;
if (!(GPIOD_INPUT_VAL & 0x40)) btn |= BUTTON_POWER;
if ((btn != btn_old) && (btn != BUTTON_NONE))
button_click();
btn_old = btn;
return btn;
}
bool headphones_inserted(void)
{
return (GPIOE_INPUT_VAL & 0x80) ? true : false;
}
|
