FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/pwr/pwr_disch.c @ 281:a75eefbf8be4
Phone boot with PWON: weed out short button presses
Every standard end user phone has a design provision, most naturally
implemented in firmware, whereby the PWON button effects a boot only
if it is held down long enough - short presses of this PWON button
are detected, assumed to be spurious and cause the fw to power back off
instead of proceeding with boot. The present change introduces this
standard function in FreeCalypso.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 24 Sep 2021 02:03:08 +0000 |
parents | 4e78acac3d88 |
children |
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/******************************************************************************* * * pwr_disch.c * * Purpose: This file contains functions for battery discharge management. * * (C) Texas Instruments 2001 * ******************************************************************************/ #include "rv/rv_defined_swe.h" // for RVM_PWR_SWE #ifdef RVM_PWR_SWE #include "abb/abb.h" #include "rvm/rvm_use_id_list.h" #include "pwr/pwr_disch.h" #include "power/power.h" #include "spi/spi_task.h" #include "pwr/pwr_cust.h" #include "pwr/pwr_messages.h" #include "spi/spi_env.h" #include "pwr/pwr_env.h" /* Define a pointer to the PWR Environment control block. */ extern T_PWR_ENV_CTRL_BLK *pwr_env_ctrl_blk; /******************************************************************************* ** Function pwr_discharge_timer_process ** ** Description ** *******************************************************************************/ void pwr_discharge_timer_process(void) { rvf_send_trace("TIMER3", 6, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, PWR_USE_ID); if (SPI_GBL_INFO_PTR->is_gsm_on == TRUE) { pwr_handle_discharge(); /* battery discharge management */ } } /******************************************************************************* ** Function pwr_handle_discharge ** ** Description Compares the battery voltage with some thresholds and, if a ** threshold is passed, sends event(s) to the upper layer. ** Re-start the timer with a value depending on the discharge ** level. ** *******************************************************************************/ void pwr_handle_discharge(void) { UINT16 timer_value; UINT16 status; UINT16 bat_madc_voltage, bat_voltage; static T_PWR_PERCENT remain_capacity = 100; /* since this variable is declared as static */ /* it will keep its value from one function call to the other */ T_PWR_PERCENT current_capacity; if (SPI_GBL_INFO_PTR->is_adc_on == FALSE) { /* Start VBAT channel conversion by writing in the result register */ ABB_Write_Register_on_page(PAGE0, VBATREG, 0x0000); rvf_delay(RVF_MS_TO_TICKS(5)); bat_madc_voltage = ABB_Read_Register_on_page(PAGE0, VBATREG); rvf_send_trace("battery voltage (MADC code) ", 28, bat_madc_voltage, RV_TRACE_LEVEL_DEBUG_LOW, PWR_USE_ID); } else /* The L1 asks for ADC conversions */ { #ifndef _WINDOWS bat_madc_voltage = SPI_GBL_INFO_PTR->adc_result[0]; #else bat_madc_voltage = ABB_Read_Register_on_page(PAGE0, VBATREG); #endif } /* Find the remaining capacity in the battery corresponding to this new voltage */ bat_voltage = pwr_adc_to_mvolt(bat_madc_voltage); rvf_send_trace("battery voltage (mV) ", 21, bat_voltage, RV_TRACE_LEVEL_DEBUG_LOW, PWR_USE_ID); current_capacity = pwr_get_capacity_vs_voltage(bat_voltage); rvf_send_trace("current capacity (%) ", 21, current_capacity, RV_TRACE_LEVEL_DEBUG_LOW, PWR_USE_ID); status = ABB_Read_Status(); /* Determine if a threshold has been passed */ if (current_capacity != remain_capacity) { /* a new threshold has been passed */ remain_capacity = current_capacity; /* informs the upper layer */ pwr_send_bat_discharge_event(remain_capacity); if (status & CHGPRES) /* charger plugged */ { if (remain_capacity == CHARGE_START_AGAIN_CAPACITY) { PWR_Charger_Plug(); } } else /* charger not plugged */ { if(remain_capacity <= pwr_env_ctrl_blk->power_alert.remain_capa_threshold) { /* informs the upper layer that the battery is low */ pwr_send_low_bat_event(remain_capacity); timer_value = SPI_TIMER3_INTERVAL_BIS; /* 10 s */ } else { #ifndef _WINDOWS timer_value = SPI_TIMER3_INTERVAL; /* 1 minute */ #else timer_value = SPI_TIMER3_INTERVAL_BIS; /* 10 s */ #endif } /* Start timer with a value depending on the remaining capacity in the battery */ rvf_start_timer (SPI_TIMER3, RVF_MS_TO_TICKS (timer_value), FALSE); } } else /* the capacity has not changed */ { #ifndef _WINDOWS timer_value = SPI_TIMER3_INTERVAL; /* 1 minute */ #else timer_value = SPI_TIMER3_INTERVAL_BIS; /* 10 s */ #endif /* Start timer with a value depending on the remaining capacity in the battery */ rvf_start_timer (SPI_TIMER3, RVF_MS_TO_TICKS (timer_value), FALSE); } } #endif /* #ifdef RVM_PWR_SWE */