5b5a626bb6
in button mode the touchpad is split into a 3x3 grid for 9 seperate buttons which can be used by the action system like real buttons. Unify the keymap file for the touchpads in button mode. the target keymap file only needs to worry about real buttons. (As these ports mature each screen will need to be fixed seperatly to be able to use stylus mode (the lists can already but don't change mode just yet.) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17114 a1c6a512-1295-4272-9138-f99709370657
252 lines
6.5 KiB
C
252 lines
6.5 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 by Karl Kurbjun
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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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/* this file also handles the touch screen driver interface */
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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 "adc.h"
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#include "system.h"
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#include "backlight-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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#define BUTTON_TIMEOUT 50
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#define BUTTON_START_BYTE 0xF0
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#define BUTTON_START_BYTE2 0xF4 /* not sure why, but sometimes you get F0 or F4, */
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/* but always the same one for the session? */
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static short last_x, last_y, last_z1, last_z2; /* for the touch screen */
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static bool touch_available = false;
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static enum touchpad_mode current_mode = TOUCHPAD_POINT;
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static int touchpad_buttons[3][3] = {
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{BUTTON_TOPLEFT, BUTTON_TOPMIDDLE, BUTTON_TOPRIGHT},
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{BUTTON_MIDLEFT, BUTTON_CENTER, BUTTON_MIDRIGHT},
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{BUTTON_BOTTOMLEFT, BUTTON_BOTTOMMIDDLE, BUTTON_BOTTOMRIGHT},
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};
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void touchpad_set_mode(enum touchpad_mode mode)
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{
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current_mode = mode;
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}
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enum touchpad_mode touchpad_get_mode(void)
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{
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return current_mode;
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}
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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_PORTAIT
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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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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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touch_available = false;
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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_PORTAIT
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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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/* Enable the touchscreen interrupt */
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IO_INTC_EINT2 |= (1<<3); /* IRQ_GIO14 */
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#if 0
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tsc2100_writereg(TSADC_PAGE, TSADC_ADDRESS,
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TSADC_PSTCM|
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(0x2<<TSADC_ADSCM_SHIFT)| /* scan x,y,z1,z2 */
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(0x1<<TSADC_RESOL_SHIFT) /* 8 bit resolution */
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);
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/* doesnt work for some reason...
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setting to 8bit would probably be better than the 12bit currently */
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#endif
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}
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inline bool button_hold(void)
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{
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return false;
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}
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static void remote_heartbeat(void)
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{
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char data[5] = {0x11, 0x30, 0x11^0x30, 0x11+0x30, '\0'};
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uart1_puts(data, 5);
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}
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#define TOUCH_MARGIN 8
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char r_buffer[5];
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int r_button = BUTTON_NONE;
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int button_read_device(int *data)
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{
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int retval, calbuf;
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static int oldbutton = BUTTON_NONE;
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r_button=BUTTON_NONE;
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*data = 0;
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if (touch_available)
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{
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short x,y;
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static long last_touch = 0;
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bool send_touch = false;
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tsc2100_read_values(&x, &y, &last_z1, &last_z2);
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if (TIME_BEFORE(last_touch + HZ/5, current_tick))
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{
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if ((x > last_x + TOUCH_MARGIN) ||
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(x < last_x - TOUCH_MARGIN) ||
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(y > last_y + TOUCH_MARGIN) ||
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(y < last_y - TOUCH_MARGIN))
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{
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send_touch = true;
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}
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}
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else
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send_touch = true;
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if (send_touch)
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{
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last_x = x;
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last_y = y;
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*data = touch_to_pixels(x, y);
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switch (current_mode)
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{
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case TOUCHPAD_POINT:
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r_button |= BUTTON_TOUCHPAD;
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break;
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case TOUCHPAD_BUTTON:
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{
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int px_x = ((*data&0xffff0000)>>16), px_y = ((*data&0x0000ffff));
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r_button |= touchpad_buttons[px_y/(LCD_HEIGHT/3)][px_x/(LCD_WIDTH/3)];
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oldbutton = r_button;
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break;
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}
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}
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}
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last_touch = current_tick;
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touch_available = false;
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}
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remote_heartbeat();
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if ((IO_GIO_BITSET0&0x01) == 0)
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{
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r_button |= BUTTON_POWER;
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oldbutton=r_button;
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}
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retval=uart1_gets_queue(r_buffer, 5);
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do
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{
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for(calbuf=0;calbuf<4;calbuf++)
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{
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if((r_buffer[calbuf]&0xF0)==0xF0 && (r_buffer[calbuf+1]&0xF0)!=0xF0)
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break;
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}
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calbuf++;
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if(calbuf==5)
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calbuf=0;
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if(retval>=0)
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{
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r_button |= r_buffer[calbuf];
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oldbutton=r_button;
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}
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else
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{
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r_button=oldbutton;
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}
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} while((retval=uart1_gets_queue(r_buffer, 5))>=5);
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return r_button;
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}
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/* Touchpad data available interupt */
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void read_battery_inputs(void);
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void GIO14(void)
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{
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short tsadc = tsc2100_readreg(TSADC_PAGE, TSADC_ADDRESS);
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short adscm = (tsadc&TSADC_ADSCM_MASK)>>TSADC_ADSCM_SHIFT;
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switch (adscm)
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{
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case 1:
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case 2:
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touch_available = true;
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break;
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case 0xb:
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read_battery_inputs();
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break;
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}
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//touch_available = true;
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IO_INTC_IRQ2 = (1<<3); /* IRQ_GIO14 == 35 */
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}
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