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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "jz4740.h"
#include "button.h"
#include "button-target.h"
#include "powermgmt.h"
#include "kernel.h"
#ifdef ONDA_VX747
#define BTN_OFF (1 << 29)
#define BTN_VOL_DOWN (1 << 27)
#define BTN_HOLD (1 << 16)
#define BTN_MENU (1 << 1)
#define BTN_VOL_UP (1 << 0)
#elif defined(ONDA_VX747P)
#define BTN_OFF (1 << 29)
#define BTN_VOL_DOWN (1 << 27)
#define BTN_HOLD (1 << 22) /* on REG_GPIO_PXPIN(2) */
#define BTN_MENU (1 << 20)
#define BTN_VOL_UP (1 << 19)
#else
#error No buttons defined!
#endif
#define BTN_MASK (BTN_OFF | BTN_VOL_DOWN | \
BTN_MENU | BTN_VOL_UP)
#define TS_AD_COUNT 5
#define SADC_CFG_SNUM ((TS_AD_COUNT - 1) << SADC_CFG_SNUM_BIT)
#define SADC_CFG_INIT ( \
(2 << SADC_CFG_CLKOUT_NUM_BIT) | \
SADC_CFG_XYZ1Z2 | \
SADC_CFG_SNUM | \
(2 << SADC_CFG_CLKDIV_BIT) | \
SADC_CFG_PBAT_HIGH | \
SADC_CFG_CMD_INT_PEN \
)
static signed int x_pos, y_pos;
static int datacount = 0, cur_touch = 0;
static bool pen_down = false;
static volatile unsigned short bat_val = 0;
static struct mutex battery_mtx;
static enum touchscreen_mode current_mode = TOUCHSCREEN_POINT;
static const int touchscreen_buttons[3][3] =
{
{BUTTON_TOPLEFT, BUTTON_TOPMIDDLE, BUTTON_TOPRIGHT},
{BUTTON_MIDLEFT, BUTTON_CENTER, BUTTON_MIDRIGHT},
{BUTTON_BOTTOMLEFT, BUTTON_BOTTOMMIDDLE, BUTTON_BOTTOMRIGHT}
};
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
/* TODO */
3400
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
/* TODO */
3300
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
/* TODO */
{ 3300, 3680, 3740, 3760, 3780, 3810, 3870, 3930, 3970, 4070, 4160 },
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
/* TODO */
3300, 3680, 3740, 3760, 3780, 3810, 3870, 3930, 3970, 4070, 4160
};
/* VBAT = (BDATA/4096) * 7.5V */
#define BATTERY_SCALE_FACTOR 7500
/* Returns battery voltage from ADC [millivolts] */
unsigned int battery_adc_voltage(void)
{
register unsigned short dummy;
mutex_lock(&battery_mtx);
dummy = REG_SADC_BATDAT;
dummy = REG_SADC_BATDAT;
bat_val = 0;
REG_SADC_ENA |= SADC_ENA_PBATEN;
/* Primitive wakeup event */
while(bat_val == 0)
yield();
mutex_unlock(&battery_mtx);
return (bat_val*BATTERY_SCALE_FACTOR)>>12;
}
void button_init_device(void)
{
REG_SADC_ENA = 0;
REG_SADC_STATE &= (~REG_SADC_STATE);
REG_SADC_CTRL = 0x1F;
__cpm_start_sadc();
REG_SADC_CFG = SADC_CFG_INIT;
system_enable_irq(IRQ_SADC);
REG_SADC_SAMETIME = 350;
REG_SADC_WAITTIME = 100;
REG_SADC_STATE &= (~REG_SADC_STATE);
REG_SADC_CTRL = (~(SADC_CTRL_PENDM | SADC_CTRL_PENUM | SADC_CTRL_TSRDYM | SADC_CTRL_PBATRDYM));
REG_SADC_ENA = (SADC_ENA_TSEN | SADC_ENA_PBATEN);
#ifdef ONDA_VX747
__gpio_as_input(32*3 + 29);
__gpio_as_input(32*3 + 27);
__gpio_as_input(32*3 + 16);
__gpio_as_input(32*3 + 1);
__gpio_as_input(32*3 + 0);
#elif defined(ONDA_VX747P)
__gpio_as_input(32*3 + 29);
__gpio_as_input(32*3 + 27);
__gpio_as_input(32*3 + 20);
__gpio_as_input(32*3 + 19);
__gpio_as_input(32*2 + 22);
#endif
mutex_init(&battery_mtx);
}
static int touch_to_pixels(short x, short y)
{
/* X:300 -> 3800 Y:300->3900 */
x -= 300;
y -= 300;
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
x /= 3200 / LCD_WIDTH;
y /= 3600 / LCD_HEIGHT;
y = LCD_HEIGHT - y;
return (x << 16) | y;
#else
x /= 3200 / LCD_HEIGHT;
y /= 3600 / LCD_WIDTH;
y = LCD_WIDTH - y;
x = LCD_HEIGHT - x;
return (y << 16) | x;
#endif
}
bool button_hold(void)
{
return ((~REG_GPIO_PXPIN(3)) & BTN_HOLD ? true : false);
}
int button_read_device(int *data)
{
int ret = 0, tmp;
/* Filter button events out if HOLD button is pressed at firmware/ level */
if(
#ifdef ONDA_VX747
(~REG_GPIO_PXPIN(3)) & BTN_HOLD
#elif defined(ONDA_VX747P)
(~REG_GPIO_PXPIN(2)) & BTN_HOLD
#endif
)
return 0;
tmp = (~REG_GPIO_PXPIN(3)) & BTN_MASK;
if(tmp & BTN_VOL_DOWN)
ret |= BUTTON_VOL_DOWN;
if(tmp & BTN_VOL_UP)
ret |= BUTTON_VOL_UP;
if(tmp & BTN_MENU)
ret |= BUTTON_MENU;
if(tmp & BTN_OFF)
ret |= BUTTON_POWER;
if(current_mode == TOUCHSCREEN_BUTTON && cur_touch != 0)
{
int px_x = cur_touch >> 16;
int px_y = cur_touch & 0xFFFF;
ret |= touchscreen_buttons[px_y/(LCD_HEIGHT/3)]
[px_x/(LCD_WIDTH/3)];
}
else if(pen_down)
{
ret |= BUTTON_TOUCH;
if(data != NULL && cur_touch != 0)
*data = cur_touch;
}
return ret;
}
void touchscreen_set_mode(enum touchscreen_mode mode)
{
current_mode = mode;
}
enum touchscreen_mode touchscreen_get_mode(void)
{
return current_mode;
}
/* Interrupt handler */
void SADC(void)
{
unsigned char state;
unsigned char sadcstate;
sadcstate = REG_SADC_STATE;
state = REG_SADC_STATE & (~REG_SADC_CTRL);
REG_SADC_STATE &= sadcstate;
if(state & SADC_CTRL_PENDM)
{
/* Pen down IRQ */
REG_SADC_CTRL &= (~(SADC_CTRL_PENUM | SADC_CTRL_TSRDYM));
REG_SADC_CTRL |= (SADC_CTRL_PENDM);
pen_down = true;
}
if(state & SADC_CTRL_PENUM)
{
/* Pen up IRQ */
REG_SADC_CTRL &= (~SADC_CTRL_PENDM );
REG_SADC_CTRL |= SADC_CTRL_PENUM;
pen_down = false;
datacount = 0;
cur_touch = 0;
}
if(state & SADC_CTRL_TSRDYM)
{
unsigned int dat;
unsigned short xData, yData;
signed short tsz1Data, tsz2Data;
dat = REG_SADC_TSDAT;
xData = (dat >> 0) & 0xFFF;
yData = (dat >> 16) & 0xFFF;
dat = REG_SADC_TSDAT;
tsz1Data = (dat >> 0) & 0xFFF;
tsz2Data = (dat >> 16) & 0xFFF;
if(!pen_down)
return;
tsz1Data = tsz2Data - tsz1Data;
if((tsz1Data > 100) || (tsz1Data < -100))
{
if(datacount == 0)
{
x_pos = xData;
y_pos = yData;
}
else
{
x_pos += xData;
y_pos += yData;
}
}
datacount++;
if(datacount >= TS_AD_COUNT)
{
cur_touch = touch_to_pixels(x_pos/datacount, y_pos/datacount);
datacount = 0;
}
}
if(state & SADC_CTRL_PBATRDYM)
{
bat_val = REG_SADC_BATDAT;
/* Battery AD IRQ */
}
if(state & SADC_CTRL_SRDYM)
{
/* SADC AD IRQ */
}
}
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