Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 1 | /*************************************************************************** |
| 2 | * __________ __ ___. |
| 3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| 4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| 5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| 6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| 7 | * \/ \/ \/ \/ \/ |
| 8 | * $Id:$ |
| 9 | * |
| 10 | * Copyright (C) 2010 Marcin Bukat |
| 11 | * |
| 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. |
| 16 | * |
| 17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 18 | * KIND, either express or implied. |
| 19 | * |
| 20 | ****************************************************************************/ |
| 21 | |
| 22 | #include "config.h" |
| 23 | #include "cpu.h" |
| 24 | #include "system.h" |
| 25 | #include "button.h" |
| 26 | #include "backlight.h" |
| 27 | #include "adc.h" |
| 28 | |
| 29 | void button_init_device(void) |
| 30 | { |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 31 | /* GPIO56 (main PLAY) |
| 32 | * GPIO41 (remote PLAY) |
| 33 | * as general purpose inputs |
| 34 | */ |
| 35 | or_l((1<<24)|(1<<9),&GPIO1_FUNCTION); |
| 36 | and_l(~((1<<24)|(1<<9)),&GPIO1_ENABLE); |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | bool button_hold(void) |
| 40 | { |
| 41 | /* GPIO36 active high */ |
| 42 | return (GPIO1_READ & (1<<4))?true:false; |
| 43 | } |
| 44 | |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 45 | bool remote_button_hold(void) |
| 46 | { |
| 47 | return adc_scan(ADC_REMOTE)<50?true:false; |
| 48 | } |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 49 | |
| 50 | /* |
| 51 | * Get button pressed from hardware |
| 52 | */ |
| 53 | int button_read_device(void) |
| 54 | { |
| 55 | int btn = BUTTON_NONE; |
| 56 | int data = 0; |
| 57 | static bool hold_button = false; |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 58 | static bool remote_hold_button = false; |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 59 | |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 60 | bool hold_button_old; |
| 61 | |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 62 | /* read hold buttons status */ |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 63 | hold_button_old = hold_button; |
| 64 | hold_button = button_hold(); |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 65 | remote_hold_button = remote_button_hold(); |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 66 | |
| 67 | #ifndef BOOTLOADER |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 68 | /* Only main hold affects backlight */ |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 69 | if (hold_button != hold_button_old) |
| 70 | backlight_hold_changed(hold_button); |
| 71 | #endif |
| 72 | |
| 73 | if (!hold_button) |
| 74 | { |
Marcin Bukat | 2a50270 | 2010-04-30 12:42:51 +0000 | [diff] [blame] | 75 | data = adc_scan(ADC_BUTTONS); |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 76 | |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 77 | if (data < 2250) /* valid button */ |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 78 | { |
| 79 | if (data < 900) /* middle */ |
| 80 | { |
| 81 | if (data < 500) |
| 82 | { |
| 83 | if (data > 200) |
| 84 | /* 200 - 500 */ |
| 85 | btn = BUTTON_REC; |
| 86 | } |
| 87 | else /* 900 - 500 */ |
| 88 | btn = BUTTON_VOL_DOWN; |
| 89 | } |
| 90 | else /* 2250 - 900 */ |
| 91 | { |
| 92 | if (data < 1600) |
| 93 | { |
| 94 | /* 1600 - 900 */ |
| 95 | if (data < 1200) |
| 96 | /* 1200 - 900 */ |
| 97 | btn = BUTTON_VOL_UP; |
| 98 | else /* 1600 - 1200 */ |
| 99 | btn = BUTTON_NEXT; |
| 100 | } |
| 101 | else /* 1600 - 2250 */ |
| 102 | { |
| 103 | if (data < 1900) |
| 104 | /* 1900 - 1600 */ |
| 105 | btn = BUTTON_PREV; |
| 106 | else /* 1900 - 2250 */ |
| 107 | btn = BUTTON_SELECT; |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 113 | if (!remote_hold_button) |
| 114 | { |
| 115 | data = adc_scan(ADC_REMOTE); |
| 116 | |
| 117 | if (data < 2050) /* valid button */ |
| 118 | { |
| 119 | if (data < 950) /* middle */ |
| 120 | { |
| 121 | if (data < 650) |
| 122 | { |
| 123 | if (data < 400) |
| 124 | { |
| 125 | if (data > 250) |
| 126 | /* 250 - 400 */ |
| 127 | btn = BUTTON_RC_VOL_DOWN; |
| 128 | } |
| 129 | else /* 650 - 400 */ |
| 130 | btn = BUTTON_RC_VOL_UP; |
| 131 | } |
| 132 | else /* 950 - 650 */ |
| 133 | btn = BUTTON_RC_NEXT; |
| 134 | } |
| 135 | else /* 2050 - 950 */ |
| 136 | { |
| 137 | if (data < 1900) |
| 138 | { |
| 139 | if (data < 1350) |
| 140 | /* 1350 - 900 */ |
| 141 | btn = BUTTON_RC_PREV; |
| 142 | } |
| 143 | else /* 2050 - 1900 */ |
| 144 | btn = BUTTON_RC_SELECT; |
| 145 | } |
| 146 | } |
| 147 | } |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 148 | |
| 149 | data = GPIO1_READ; |
| 150 | |
| 151 | /* GPIO56 active high main PLAY/PAUSE/ON */ |
| 152 | if (!hold_button && ((data & (1<<24)))) |
| 153 | btn |= BUTTON_PLAY; |
Marcin Bukat | 8d3591a | 2010-07-03 20:20:42 +0000 | [diff] [blame^] | 154 | |
| 155 | /* GPIO41 active high remote PLAY/PAUSE/ON */ |
| 156 | if (!remote_hold_button && ((data & (1<<9)))) |
| 157 | btn |= BUTTON_RC_PLAY; |
Marcin Bukat | 28d54c6 | 2010-04-26 21:40:16 +0000 | [diff] [blame] | 158 | |
| 159 | return btn; |
| 160 | } |