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view src/cs/drivers/drv_app/fchg/fchg_convert_mA.c @ 286:ee16d57b32b2

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Condat audio_Init(): rm setting of sidetone level The default sidetone level in the absence of audio mode loading is just that, a basic default without any promises of good tuning. In the original TCS211 code this default sidetone level was set in two places: first in L1 init of ABB-via-DSP registers (set to -17 dB), and then initialized again in Condat audio_Init(), this time set to -5 dB. The present change removes the redundant second initialization. The default sidetone level is now -17 dB instead of -5 dB with this change, but again it is just the default; all serious users are now expected to use audio mode config files.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 09 Nov 2021 02:16:59 +0000
parents 09ea37852fd6
children
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/*
 * This module implements the fchg_convert_ichg_to_mA() function,
 * converting charging current (Ichg) measurements from ADC units
 * to human-friendly mA numbers.  In the phone hardware this current
 * measurement is made with the aid of a current measurement resistor
 * placed in the charging current path (the Iota chip's MADC actually
 * measures the voltage across this resistor, between VCCS and VBATS
 * terminals), and it just so happens that different phone designers
 * have chosen different values for this current measurement resistor:
 * Pirelli DP-L10 uses 0.20R, following TI's canon, whereas Mot C1xx
 * phones use 0.15R.  Because of these different resistor values,
 * the formula for converting ADC units to mA becomes target-dependent.
 */

#include "fchg/fchg_api.h"
#include "fc-target.h"

UINT16 fchg_convert_ichg_to_mA(UINT16 ichg)
{
#ifdef CONFIG_TARGET_COMPAL
	/* formula for 0.15R */
	return (ichg * 875 / 768);
#else
	/* formula for 0.20R */
	return (ichg * 875 / 1024);
#endif
}