view src/cs/drivers/drv_app/fchg/fchg_task.c @ 51:04aaa5622fa7

disable deep sleep when Iota LEDB is on TI's Iota chip docs say that CLK13M must be running in order for LEDB to work, and practical experience on Mot C139 which uses Iota LEDB for its keypad backlight concurs: if Calypso enters deep sleep while the keypad backlight is turned on, the light flickers visibly as the chipset goes into and out of deep sleep. TI's original L1 sleep manager code had logic to disable deep sleep when LT_Status() returns nonzero, but that function only works for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no check of Iota LEDB status anywhere. Change this code for our current hardware: disable deep sleep when Iota LEDB has been turned on through LLS.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 19 Oct 2020 05:11:29 +0000
parents 4e78acac3d88
children 032a561fab2b
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/*
 * The FCHG task's core function lives here.
 */

#include "fchg/fchg_env.h"
#include "fchg/fchg_func_i.h"
#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"
#include "abb/abb.h"

static void set_initial_state(void)
{
	SYS_UWORD16 abb_status;

	abb_status = ABB_Read_Status();
	if (abb_status & CHGPRES) {
		if (pwr_ctrl->config_present)
			pwr_ctrl->state = FCHG_STATE_READY_TO_CHARGE;
		else
			pwr_ctrl->state = FCHG_STATE_NO_CHARGING;
	} else
		pwr_ctrl->state = FCHG_STATE_NO_EXT_PWR;
}

T_RV_RET fchg_core(void)
{	
	BOOLEAN error_occured = FALSE;
	T_RV_HDR *msg_ptr;

	rvf_send_trace("FCHG task: Initialization", 25, NULL_PARAM,
			RV_TRACE_LEVEL_DEBUG_LOW, FCHG_USE_ID);
	pwr_load_ffs_batt_table();
	pwr_load_ffs_charging_config();
	set_initial_state();
	pwr_init_discharge();

	/* loop to process messages */
	while (error_occured == FALSE)
	{
		/* Wait for the necessary events (infinite wait for a msg in the mailbox 0). */
		UINT16 received_event = rvf_wait (0xffff, 0);
					
		/* If an event related to mailbox 0 is received, then */
		if (received_event & RVF_TASK_MBOX_0_EVT_MASK) 
		{
			/* Read the message in the driver mailbox and delegate action..*/
			msg_ptr = (T_RV_HDR *) rvf_read_mbox(FCHG_MAILBOX);
			if (msg_ptr) {
				pwr_process_message(msg_ptr);
				rvf_free_buf ((void *) msg_ptr);
			}
		}

		/* Timers */
		if (received_event & RVF_TIMER_0_EVT_MASK)
			pwr_handle_timer();

	}	 // end of while
	return RV_OK;	
}