207 lines
5.2 KiB
C
207 lines
5.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007, 2009 by Karl Kurbjun
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "cpu.h"
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#include "system.h"
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#include "button.h"
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#include "kernel.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "lcd-remote-target.h"
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#include "uart-target.h"
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#include "tsc2100.h"
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#include "string.h"
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#include "touchscreen.h"
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static bool hold_button = false;
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static struct touch_calibration_point topleft, bottomright;
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/* Jd's tests.. These will hopefully work for everyone so we dont have to
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* create a calibration screen.
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* Portait:
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* (0,0) = 200, 3900
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* (480,640) = 3880, 270
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* Landscape:
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* (0,0) = 200, 270
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* (640,480) = 3880, 3900
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*/
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static int touch_to_pixels(short *val_x, short *val_y)
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{
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short x,y;
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#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
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x=*val_x;
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y=*val_y;
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#else
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x=*val_y;
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y=*val_x;
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#endif
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x = (x-topleft.val_x)*(bottomright.px_x - topleft.px_x) / (bottomright.val_x - topleft.val_x) + topleft.px_x;
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y = (y-topleft.val_y)*(bottomright.px_y - topleft.px_y) / (bottomright.val_y - topleft.val_y) + topleft.px_y;
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if (x < 0)
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x = 0;
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else if (x>=LCD_WIDTH)
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x=LCD_WIDTH-1;
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if (y < 0)
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y = 0;
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else if (y>=LCD_HEIGHT)
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y=LCD_HEIGHT-1;
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*val_x=x;
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*val_y=y;
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return (x<<16)|y;
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}
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void button_init_device(void)
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{
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/* GIO is the power button, set as input */
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IO_GIO_DIR0 |= 0x01;
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#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
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topleft.val_x = 200;
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topleft.val_y = 3900;
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bottomright.val_x = 3880;
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bottomright.val_y = 270;
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#else
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topleft.val_x = 270;
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topleft.val_y = 200;
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bottomright.val_x = 3900;
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bottomright.val_y = 3880;
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#endif
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topleft.px_x = 0;
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topleft.px_y = 0;
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bottomright.px_x = LCD_WIDTH;
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bottomright.px_y = LCD_HEIGHT;
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}
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inline bool button_hold(void)
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{
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return hold_button;
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}
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#ifdef HAVE_REMOTE_LCD
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static bool remote_hold_button;
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static int remote_read_buttons(void)
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{
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static char read_buffer[5];
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int read_button = BUTTON_NONE;
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static int oldbutton=BUTTON_NONE;
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/* Handle remote buttons */
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if(uart1_gets_queue(read_buffer, 5)>=0)
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{
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int button_location;
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for(button_location=0;button_location<4;button_location++)
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{
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if((read_buffer[button_location]&0xF0)==0xF0
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&& (read_buffer[button_location+1]&0xF0)!=0xF0)
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break;
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}
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if(button_location==4)
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button_location=0;
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button_location++;
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read_button |= read_buffer[button_location];
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/* Find the hold status location */
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if(button_location==4)
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button_location=0;
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else
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button_location++;
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remote_hold_button=((read_buffer[button_location]&0x80)?true:false);
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uart1_clear_queue();
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oldbutton=read_button;
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}
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else
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read_button=oldbutton;
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return read_button;
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}
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#endif
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/* Since this is a touchscreen, the expectation in higher levels is that the
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* previous touch location is maintained when a release occurs. This is
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* intended to mimic a mouse or other similar pointing device.
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*/
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int button_read_device(int *data)
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{
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static int old_data = 0;
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int button_read = BUTTON_NONE;
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short touch_x, touch_y, touch_z1, touch_z2;
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#ifndef BOOTLOADER
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static bool hold_button_old = false;
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#endif
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*data = old_data;
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/* Handle touchscreen */
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if (tsc2100_read_touch(&touch_x, &touch_y, &touch_z1, &touch_z2))
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{
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old_data = *data = touch_to_pixels(&touch_x, &touch_y);
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button_read |= touchscreen_to_pixels(touch_x, touch_y, data);
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}
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tsc2100_set_mode(true, 0x02);
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/* Handle power button */
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if ((IO_GIO_BITSET0&0x01) == 0) {
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button_read |= BUTTON_POWER;
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}
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#if defined(HAVE_REMOTE_LCD)
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/* Read data from the remote */
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button_read |= remote_read_buttons();
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hold_button=remote_hold_button;
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#endif
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/* Take care of hold notifications */
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#ifndef BOOTLOADER
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/* give BL notice if HB state chaged */
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if (hold_button != hold_button_old) {
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backlight_hold_changed(hold_button);
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hold_button_old=hold_button;
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}
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#endif
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if (hold_button)
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{
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button_read = BUTTON_NONE;
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}
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return button_read;
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}
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