/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id: button-x5.c 12627 2007-03-05 20:14:41Z amiconn $ * * Copyright (C) 2006 by Linus Nielsen Feltzing * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include #include "atoi.h" #include "file.h" #include #include #include #include "config.h" #include "system.h" #include "button.h" #include "backlight.h" #include "adc.h" #include "lcd-remote-target.h" /* have buttons scan by default */ static bool button_scan_on = true; static bool hold_button = false; static bool remote_hold_button = false; void button_init_device(void) { /* Power, Remote Play & Hold switch */ GPIO_FUNCTION |= 0x0e000000; GPIO_ENABLE &= ~0x0e000000; } void button_enable_scan(bool enable) { button_scan_on = enable; } bool button_scan_enabled(void) { return button_scan_on; } bool button_hold(void) { return (GPIO_READ & 0x08000000) == 0; } bool remote_button_hold(void) { return remote_hold_button; } int button_read_device(void) { #define FILTER 2 #define DELTA 1 int btn = BUTTON_NONE; bool hold_button_old; bool remote_hold_button_old; int data; static int data_last_valid = 0xFF; static int tab[FILTER] = {0xff}; static int cursor = 0; int tab_size = FILTER; int tab_max = 0x00; int tab_min = 0xFF; int i; int file_sett; char textbuffer[100]; static int j=0; static bool start=0; /* normal buttons */ hold_button_old = hold_button; hold_button = button_hold(); #ifndef BOOTLOADER /* give BL notice if HB state chaged */ if (hold_button != hold_button_old) backlight_hold_changed(hold_button); #endif if (button_scan_on && !hold_button) { data = adc_scan(ADC_BUTTONS); if (j<100 && start == 1) { textbuffer[j++] = data; if (j==99) { file_sett=open("/button_Presses.txt", O_RDWR | O_CREAT); if (file_sett >= 0) { write(file_sett, textbuffer, 100); close(file_sett); } } } /* ADC debouncing */ tab[cursor++] = data; if (cursor >= tab_size) cursor = 0; for (i = 0; i < tab_size; i++) { if ((unsigned) tab[i] < (unsigned) tab_min) tab_min = tab[i]; if ((unsigned) tab[i] > (unsigned) tab_max) tab_max = tab[i]; } if ((unsigned) tab_max - (unsigned) tab_min <= DELTA) { data = tab_min; data_last_valid = tab_min; } else data = data_last_valid; if (data >= 0xf0 && cursor == 0) //Reset FILTER as no button was pressed { for (i = 0; i < tab_size; i++) tab[i] = 0xff; data_last_valid = 0xff; } if (data < 0xf0) { if(data < 0x7c) if(data < 0x42) btn = BUTTON_LEFT; else if(data < 0x62) btn = BUTTON_RIGHT; else { btn = BUTTON_SELECT; start = 1; } else if(data < 0xb6) if(data < 0x98) btn = BUTTON_REC; else btn = BUTTON_PLAY; else if(data < 0xd3) btn = BUTTON_DOWN; else btn = BUTTON_UP; } } /* remote buttons */ data = remote_detect() ? adc_scan(ADC_REMOTE) : 0xff; remote_hold_button_old = remote_hold_button; remote_hold_button = data < 0x17; #ifndef BOOTLOADER if (remote_hold_button != remote_hold_button_old) remote_backlight_hold_changed(remote_hold_button); #endif if (!remote_hold_button) { if (data < 0xee) { if(data < 0x7a) if(data < 0x41) btn |= BUTTON_RC_FF; else if(data < 0x61) btn |= BUTTON_RC_REW; else btn |= BUTTON_RC_MODE; else if(data < 0xb4) if(data < 0x96) btn |= BUTTON_RC_REC; else btn |= BUTTON_RC_MENU; else if(data < 0xd1) btn |= BUTTON_RC_VOL_UP; else btn |= BUTTON_RC_VOL_DOWN; } } data = GPIO_READ; /* hold and power are mutually exclusive */ if (!(data & 0x04000000)) btn |= BUTTON_POWER; /* remote play button should be dead if hold */ if (!remote_hold_button && !(data & 0x02000000)) btn |= BUTTON_RC_PLAY; return btn; }