FreeCalypso > hg > fc-tourmaline

annotate src/cs/drivers/drv_app/fchg/fchg_convert_mA.c @ 274:fa22012c4a39

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CST: remove AT%Nxxxx old AEC control This crude method of enabling and configuring AEC is not compatible with L1_NEW_AEC, and even for the old AEC it did not support every possible combination. It is time for this hack to go. The new and proper way of enabling and configuring AEC is via RiViera Audio Service audio mode facility, either audio mode files or full access write, most directly accessible via fc-tmsh auw 12 for free experimentation.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 29 Jul 2021 18:57:36 +0000
parents 09ea37852fd6
children
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09ea37852fd6 add function to convert Ichg ADC readings to mA
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1 /*
09ea37852fd6 add function to convert Ichg ADC readings to mA
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2 * This module implements the fchg_convert_ichg_to_mA() function,
09ea37852fd6 add function to convert Ichg ADC readings to mA
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3 * converting charging current (Ichg) measurements from ADC units
09ea37852fd6 add function to convert Ichg ADC readings to mA
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4 * to human-friendly mA numbers. In the phone hardware this current
09ea37852fd6 add function to convert Ichg ADC readings to mA
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5 * measurement is made with the aid of a current measurement resistor
09ea37852fd6 add function to convert Ichg ADC readings to mA
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6 * placed in the charging current path (the Iota chip's MADC actually
09ea37852fd6 add function to convert Ichg ADC readings to mA
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7 * measures the voltage across this resistor, between VCCS and VBATS
09ea37852fd6 add function to convert Ichg ADC readings to mA
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8 * terminals), and it just so happens that different phone designers
09ea37852fd6 add function to convert Ichg ADC readings to mA
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9 * have chosen different values for this current measurement resistor:
09ea37852fd6 add function to convert Ichg ADC readings to mA
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10 * Pirelli DP-L10 uses 0.20R, following TI's canon, whereas Mot C1xx
09ea37852fd6 add function to convert Ichg ADC readings to mA
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11 * phones use 0.15R. Because of these different resistor values,
09ea37852fd6 add function to convert Ichg ADC readings to mA
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12 * the formula for converting ADC units to mA becomes target-dependent.
09ea37852fd6 add function to convert Ichg ADC readings to mA
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13 */
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14
09ea37852fd6 add function to convert Ichg ADC readings to mA
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15 #include "fchg/fchg_api.h"
09ea37852fd6 add function to convert Ichg ADC readings to mA
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16 #include "fc-target.h"
09ea37852fd6 add function to convert Ichg ADC readings to mA
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17
09ea37852fd6 add function to convert Ichg ADC readings to mA
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18 UINT16 fchg_convert_ichg_to_mA(UINT16 ichg)
09ea37852fd6 add function to convert Ichg ADC readings to mA
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19 {
09ea37852fd6 add function to convert Ichg ADC readings to mA
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20 #ifdef CONFIG_TARGET_COMPAL
09ea37852fd6 add function to convert Ichg ADC readings to mA
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21 /* formula for 0.15R */
09ea37852fd6 add function to convert Ichg ADC readings to mA
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22 return (ichg * 875 / 768);
09ea37852fd6 add function to convert Ichg ADC readings to mA
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23 #else
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24 /* formula for 0.20R */
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25 return (ichg * 875 / 1024);
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26 #endif
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27 }