Switch_ON(): detect charging mode by CHGPRES bit Consider the following scenario: the phone is on, the user plugs in the charger, and then executes the power-off operation. In the Iota VRPC this sequence translates to a switch-off immediately followed by another switch-on - but the CHGSTS bit doesn't get set on the second switch-on cycle! Disassembly of Pirelli's fw shows that they check the CHGPRES bit, and furthermore, if both CHGPRES and ONBSTS are set, the code they pass to their modified Power_ON_Button() function is the one for charging - so let's adopt the same CHGPRES check and the same priority order for switch-on causes.

/************* Revision Controle System Header *************
 *                  GSM Layer 1 software 
 * L1_API_HISR.H
 *
 *        Filename l1_api_hisr.h
 *  Copyright 2003 (C) Texas Instruments  
 *
 ************* Revision Controle System Header *************/

#ifndef _L1_API_HISR_H_
#define _L1_API_HISR_H_

/* Constants */
#define ID_API_INT		0x4

/* Prototypes */
void l1_trigger_api_interrupt();
void l1_api_handler();

#endif