view src/cs/services/fcbm/fcbm_phone_on.c @ 261:841a848ba762

SPI SWE: clear any pending boot-time interrupts in spi_init() Charger plug/unplug hw logic in the Iota ABB has no built-in debouncing, thus electrical contact bounce on the charging power connection interface produces a lot of charger plug/unplug interrupts. When we boot in charging mode (charging power present at boot time and is presumably the cause of Switch-ON), some bounce may occur between the initial Iota Switch-ON action and Calypso firmware booting. By clearing any accumulated ITSTATREG interrupts on boot, we prevent these pre-boot interrupts from generating charger plug/unplug events to FCHG, which would upset smooth from-boot charging.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 May 2021 02:49:05 +0000
parents baa738eeb842
children
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/*
 * In this module we are going to implement FCBM functions
 * for handing off to MMI, for phone-on operation.
 */

#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"
#include "fcbm/fcbm_func_i.h"
#include "fcbm/fcbm_life_cycle.h"
#include "fcbm/fcbm_timer_i.h"

extern void fchs_pwon_button_boot(void);

void fcbm_process_msg_phone_on(void)
{
	if (fcbm_life_cycle_state != FCBM_STATE_ACTIVE) {
		rvf_send_trace("FCBM got phone-on request in wrong state", 40,
				fcbm_life_cycle_state,
				RV_TRACE_LEVEL_ERROR, FCBM_USE_ID);
		return;
	}
	rvf_send_trace("FCBM handing off to MMI", 23, NULL_PARAM,
			RV_TRACE_LEVEL_DEBUG_HIGH, FCBM_USE_ID);
	fcbm_unsubscribe_kpd();
	rvf_stop_timer(FCBM_TIMER_CHG_UPD);
	rvf_stop_timer(FCBM_TIMER_DSPL_OFF);
	fcbm_life_cycle_state = FCBM_STATE_PHONE_ON;
	fchs_pwon_button_boot();
}