int do_fastboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int ret = 1;
unsigned long val;
/* Initialize the board specific support */
if (0 == fastboot_init(&interface))
{
printf ("Fastboot entered...\n");
run_command("setgreenled 50", 0);
fastboot_countdown = CFG_FASTBOOT_COUNTDOWN;
/* If we got this far, we are a success */
ret = 0;
val = getbootmode();
/* On disconnect or error, polling returns non zero */
/* Always delay for fastboot unless we're in bootmode 4002
* or using the "factory" cable */
if((0x4002 != val) && !(__raw_readl(0x48055138) & 0x00100000)){
while (fastboot_countdown)
{
if (!fastboot_confirmed) {
fastboot_countdown--;
}
if (fastboot_poll())
break;
/* if we're holding down the button to get into
* recovery, don't wait for the fastboot timeout so we don't
* accidentally power off. short circuit 49999/50000 times
* through to keep from overwhelming the twl6030 */
if (!(fastboot_countdown % 50000) &&
(0 == twl6030_get_power_button_status())) {
fastboot_wait_power_button_abort = 1;
break;
}
}
}else{
while (1)
{
if (fastboot_poll())
break;
}
}
}
/* Reset the board specific support */
fastboot_shutdown();
/* If we're in 4003, go on to OMAP boot over USB */
if(0x4003 == val){
printf ("setting boot sequence first to USB.\nreboot...\n");
set_SWBootingCfg();
}
return ret;
}
/*
It is a 0.5 sec loop.
work_index second function
0 0 voltage,capacity
1 0.5 power_button
2 1 vbus
3 1.5 power_button
4 2 temperature
5 2.5 power_button
6 3 vbus
7 3.5 power_button
8 4 current
9 4.5 power_button
*/
static int low_bat_charge()
{
u16 v = 0, cap = 0;
s16 t = 0, c = 0;
int result=0;
int voltage=0;
int current=0;
int temperature=0;
int vbus=0;
int ms=0;
int sec=0;
int value=0;
int capacity=0;
int show_low_bat=0;
int show_low_bat_ptw=0;
int power_button=0;
int work_index=0;
while(result==0){
work_index=sec%10;
//printf("sec=%d work_index=%d\n",sec,work_index);
switch(work_index){
case 0:
bq27541_voltage(&v);
voltage = v;
bq27541_capacity(&cap);
capacity = cap;
if((voltage >= LOW_BATTERY_VOLTAGE_LIMIT) && (capacity >= LOW_BATTERY_CAPACITY_LIMIT)){
result=1;
break;
}
if( show_low_bat==1){
show_low_bat=2;
turn_off_lcd();
}
if((voltage > LOW_LCD_VOLTAGE_LIMIT) && (show_low_bat==0)){
show_low_bat=1;
initialize_lcd(OTTER_LCD_DISPLAY_LOW_BATT_SCREEN);
}
printf("Battery voltage=%d capacity=%d \n",voltage,capacity);
break;
case 4:
bq27541_temperature(&t);
temperature = t;
//printf("Battery temperature=%d\n",temperature);
if( (temperature>TEMPERATURE_HOT_LIMIT) || (temperature<TEMPERATURE_COLD_LIMIT)){
printf("shutdown due to temperature protect %d\n",temperature);
twl6030_shutdown();
}
break;
case 8:
bq27541_current(&c);
current = c;
printf("Battery current=%d\n",current);
/*
* Shutdown if there is drain current, and we've displayed the LCD
* and shut it down after 10 seconds
*/
if(current<0 && (show_low_bat<1 || show_low_bat>15)){
printf("shutdown due to there is discharge %d mA\n",current);
twl6030_shutdown();
}
smb347_i2c_read_u8(&value,SUMMIT_SMB347_INTSTAT_REG_D);
if((PC_TIMEOUT_STATUS & value) || (COMPLETE_CHARGE_TIMEOUT_STATUS & value)){
printf("shutdown due to the charge time out\n");
twl6030_shutdown();
}
break;
case 2:
case 6:
vbus=twl6030_get_vbus_status();
//printf("vbus=%d\n",vbus);
if(vbus==0){
printf("shutdown due to there is no VBUS\n");
twl6030_shutdown();
}
break;
default :
power_button=twl6030_get_power_button_status();
if( (power_button ==0 )&& (voltage > LOW_LCD_VOLTAGE_LIMIT) && (show_low_bat==2)&& (show_low_bat_ptw==0)){
show_low_bat_ptw=1;
initialize_lcd(OTTER_LCD_DISPLAY_LOW_BATT_CHARGING_SCREEN);
}
if((power_button ==1)&& (show_low_bat_ptw==1)){
show_low_bat_ptw=0;
turn_off_lcd();
}
break;
}
//delay 0.5s
sec++;
mdelay(200);
}
//check vbus again
vbus=twl6030_get_vbus_status();
if((vbus==0)){
run_command("setgreenled ff", 0);
run_command("setamberled 0", 0);
}
return result;
}