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138 lines
3.4 KiB
Bash
138 lines
3.4 KiB
Bash
#/bin/bash
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# Reset
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#echo -n Reset...
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#i2cset -y -m 0x80 2 0x6b 0x04 80
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#echo -n Done. Sleep 1...
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#sleep 1
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#echo -n Done.
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echo "Charger: " $(cat /sys/devices/platform/musb_hdrc/charger)
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# Disable charger for configuration:
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i2cset -y 2 0x6b 0x01 0xcc # No limit, 3.4V weak threshold, enable term, charger disable
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# Register 0x04
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# 8: reset
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# 4: 27.2mV # charge current
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# 2: 13.6mV
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# 1: 6.8mV
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# 8: N/A
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# 4: 13.6mV # termination current
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# 2: 6.8mV
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# 1: 3.4mV
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# 7-1250 6-1150 5-1050 4-950 3-850 2-750 1-650 0-550
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# 7-400 6-350 5-300 4-250 3-200 2-150 1-100 0-50
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i2cset -y -m 0xFF 2 0x6b 0x04 0x50;
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# Register 0x02
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# 8: .640 V
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# 4: .320 V
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# 2: .160 V
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# 1: .080
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# 8: .040
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# 4: .020 (+ 3.5)
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# 2: otg pin active at high (default 1)
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# 1: enable otg pin
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i2cset -y -m 0xfc 2 0x6b 0x02 0x8c;
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# 4.2 = 3.5 + .640 + .040 + .02 = 8c
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# 4.16 = 3.5 + .640V + .020 = 84
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# 4.1 = 3.5 + .320 + .160 + .08 + .04 = 78
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# 4.0 = 3.5 + .320 + .160 + .02 = 64
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# 3.9 = 3.5 + .320 + .080 = 50
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# Register 0x1
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# 8: 00 = 100, 01 = 500, 10 = 800mA
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# 4: 11 = no limit
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# 2: 200mV weak threshold default 1
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# 1: 100mV weak treshold defsult 1 (3.4 - 3.7)
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# 8: enable termination
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# 4: charger disable
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# 2: high imp mode
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# 1: boost
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i2cset -y 2 0x6b 0x01 0xc8;
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# Register 0x00
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# 8: Read: OTG Pin Status
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# Write: Timer Reset
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# 4: Enable Stat Pin
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# 2: Stat : 00 Ready 01 In Progress
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# 1: : 10 Done 11 Fault
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# 8: Boost Mode
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# 4: Fault: 000 Normal 001 VBUS OVP 010 Sleep Mode
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# 2: 011 Poor input or Vbus < UVLO
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# 1: 100 Battery OVP 101 Thermal Shutdown
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# 110 Timer Fault 111 NA
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i2cset -y 2 0x6b 0x00 0x00;
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echo -n "Charge parameters programmed. Sleep 1..."
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sleep 1
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echo "Status: " $(i2cget -y 2 0x6b 0x00)
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i2cset -y 2 0x6b 0x00 0x80 # timer reset
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cat /sys/devices/platform/musb_hdrc/charger >/dev/null
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# Initialize variables
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THROTTLE=0
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FULL=0
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MODE="STANDBY"
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WALLCHARGER=0
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# Assuming a nice round number 20mOhm for bq27200 sense resistor
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RS=20
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get_nac ()
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{
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NAC=$(i2cget -y 2 0x55 0x0c w)
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NAC=$(($NAC * 3570 / $RS / 1000))
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}
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get_rsoc ()
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{
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RSOC=$(i2cget -y 2 0x55 0x0b)
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RSOC=$((RSOC))
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}
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get_volt ()
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{
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VOLT=$(i2cget -y 2 0x55 0x08 w)
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VOLT=$(($VOLT))
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}
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STATUS=$(i2cget -y 2 0x6b 0x00)
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while true ; do
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sleep 15;
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STATUS=$(i2cget -y 2 0x6b 0x00)
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#echo $STATUS
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i2cset -y -m 0x80 2 0x6b 0x00 0x80; # timer reset
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get_nac
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get_rsoc
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get_volt
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if [ $MODE == "STANDBY" ] ; then
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if [ $STATUS == 0x10 ] || [ $STATUS == 0x90 ] ; then
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MODE="CHARGING"
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echo $(date) "standby -> CHARGING. Current available capacity: " $NAC "mAh" >> /home/user/MyDocs/charger.log
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WALLCHARGER=$(cat /sys/devices/platform/musb_hdrc/charger)
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fi
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fi
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if [ $MODE == "CHARGING" ] ; then
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if [ $STATUS == 0x00 ] ; then
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MODE="STANDBY"
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echo $(date) "charging -> STANDBY. Current available capacity: " $NAC "mAh" >> /home/user/MyDocs/charger.log
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WALLCHARGER=0
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# This will stop USB from eating power as long as you haven't plugged it into a PC
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echo 0 > /sys/devices/platform/musb_hdrc/connect
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fi
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fi
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if [ $STATUS == 0xa0 ] && [ $FULL == 0 ] ; then
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echo "Charge done"
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echo $(date) "FULL: " $NAC "mAh" >> /home/user/MyDocs/charger.log
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FULL=1
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fi
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if [ $STATUS == 0x00 ] && [ $FULL == 1 ] ; then
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FULL=0
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fi
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echo Status: $STATUS Mode: $MODE Full: $FULL WallCharger: $WALLCHARGER Battery Voltage: $VOLT NAC: $NAC Battery level: $RSOC %
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done
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