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gerrit.rockbox.org / rockbox / 2acc0ac542d9186feee25bbe444c49cb59ca393e / . / firmware / target / coldfire / iriver / h100 / button-h100.c
blob: c32b979a001f90e0ed39cd6d7c4bdd86d0d825c9 [file] [log] [blame]
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Jonathan Gordon
11 *
Daniel Stenberg2acc0ac2008-06-28 18:10:04 +0000[diff] [blame^]12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]22#include "config.h"
23#include "cpu.h"
24#include "system.h"
25#include "button.h"
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]26#include "backlight.h"
27#include "adc.h"
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]28#include "lcd-remote.h"
Jonathan Gordoncad563b2006-10-29 10:26:41 +0000[diff] [blame]29
30void button_init_device(void)
31{
32 /* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs */
33 GPIO1_FUNCTION |= 0x00100062;
34 GPIO1_ENABLE &= ~0x00100060;
35}
36
37bool button_hold(void)
38{
39 return (GPIO1_READ & 0x00000002)?true:false;
40}
41
42bool remote_button_hold_only(void)
43{
44 if(remote_type() == REMOTETYPE_H300_NONLCD)
45 return adc_scan(ADC_REMOTE)<0x0d; /* hold should be 0x00 */
46 else
47 return (GPIO1_READ & 0x00100000)?true:false;
48}
49
50/* returns true only if there is remote present */
51bool remote_button_hold(void)
52{
53 /* H300's NON-LCD remote doesn't set the "remote present" bit */
54 if(remote_type() == REMOTETYPE_H300_NONLCD)
55 return remote_button_hold_only();
56 else
57 return ((GPIO_READ & 0x40000000) == 0)?remote_button_hold_only():false;
58}
59
60/*
61 * Get button pressed from hardware
62 */
63int button_read_device(void)
64{
65 int btn = BUTTON_NONE;
66 int data;
67 static bool hold_button = false;
68 static bool remote_hold_button = false;
69 static int prev_data = 0xff;
70 static int last_valid = 0xff;
71 bool hold_button_old;
72 bool remote_hold_button_old;
73
74 /* normal buttons */
75 hold_button_old = hold_button;
76 hold_button = button_hold();
77
78
79#ifndef BOOTLOADER
80 if (hold_button != hold_button_old)
81 backlight_hold_changed(hold_button);
82#endif
83
84 if (!hold_button)
85 {
86 data = adc_scan(ADC_BUTTONS);
87
88 /* ADC debouncing: Only accept new reading if it's
89 * stable (+/-1). Use latest stable value otherwise. */
90 if ((unsigned)(data - prev_data + 1) <= 2)
91 last_valid = data;
92 prev_data = data;
93 data = last_valid;
94
95 if (data < 0xf0)
96 {
97 if (data < 0x80)
98 if (data < 0x30)
99 if (data < 0x18)
100 btn = BUTTON_SELECT;
101 else
102 btn = BUTTON_UP;
103 else
104 if (data < 0x50)
105 btn = BUTTON_LEFT;
106 else
107 btn = BUTTON_DOWN;
108 else
109 if (data < 0xb0)
110 if (data < 0xa0)
111 btn = BUTTON_RIGHT;
112 else
113 btn = BUTTON_OFF;
114 else
115 if (data < 0xd0)
116 btn = BUTTON_MODE;
117 else
118 btn = BUTTON_REC;
119 }
120 }
121
122 /* remote buttons */
123 remote_hold_button_old = remote_hold_button;
124 remote_hold_button = remote_button_hold_only();
125
126#ifndef BOOTLOADER
127 if (remote_hold_button != remote_hold_button_old)
128 remote_backlight_hold_changed(remote_hold_button);
129#endif
130
131 if (!remote_hold_button)
132 {
133 data = adc_scan(ADC_REMOTE);
134 switch (remote_type())
135 {
136 case REMOTETYPE_H100_LCD:
137 if (data < 0xf5)
138 {
139 if (data < 0x73)
140 if (data < 0x3f)
141 if (data < 0x25)
142 if(data < 0x0c)
143 btn |= BUTTON_RC_STOP;
144 else
145 btn |= BUTTON_RC_VOL_DOWN;
146 else
147 btn |= BUTTON_RC_MODE;
148 else
149 if (data < 0x5a)
150 btn |= BUTTON_RC_VOL_UP;
151 else
152 btn |= BUTTON_RC_BITRATE;
153 else
154 if (data < 0xa8)
155 if (data < 0x8c)
156 btn |= BUTTON_RC_REC;
157 else
158 btn |= BUTTON_RC_SOURCE;
159 else
160 if (data < 0xdf)
161 if(data < 0xc5)
162 btn |= BUTTON_RC_FF;
163 else
164 btn |= BUTTON_RC_MENU;
165 else
166 btn |= BUTTON_RC_REW;
167 }
168 break;
169 case REMOTETYPE_H300_LCD:
170 if (data < 0xf5)
171 {
172 if (data < 0x73)
173 if (data < 0x42)
174 if (data < 0x27)
175 if(data < 0x0c)
176 btn |= BUTTON_RC_VOL_DOWN;
177 else
178 btn |= BUTTON_RC_FF;
179 else
180 btn |= BUTTON_RC_STOP;
181 else
182 if (data < 0x5b)
183 btn |= BUTTON_RC_MODE;
184 else
185 btn |= BUTTON_RC_REC;
186 else
187 if (data < 0xab)
188 if (data < 0x8e)
189 btn |= BUTTON_RC_ON;
190 else
191 btn |= BUTTON_RC_BITRATE;
192 else
193 if (data < 0xde)
194 if(data < 0xc5)
195 btn |= BUTTON_RC_SOURCE;
196 else
197 btn |= BUTTON_RC_VOL_UP;
198 else
199 btn |= BUTTON_RC_REW;
200 }
201 break;
202 case REMOTETYPE_H300_NONLCD:
203 if (data < 0xf1)
204 {
205 if (data < 0x7d)
206 if (data < 0x25)
207 btn |= BUTTON_RC_FF;
208 else
209 btn |= BUTTON_RC_REW;
210 else
211 if (data < 0xd5)
212 btn |= BUTTON_RC_VOL_DOWN;
213 else
214 btn |= BUTTON_RC_VOL_UP;
215 }
216 break;
217 }
218 }
219
220 data = GPIO1_READ;
221 if (!hold_button && ((data & 0x20) == 0))
222 btn |= BUTTON_ON;
223 if (!remote_hold_button && ((data & 0x40) == 0))
224 switch(remote_type())
225 {
226 case REMOTETYPE_H100_LCD:
227 case REMOTETYPE_H300_NONLCD:
228 btn |= BUTTON_RC_ON;
229 break;
230 case REMOTETYPE_H300_LCD:
231 btn |= BUTTON_RC_MENU;
232 break;
233 }
234
235 return btn;
236}