init_auto

#!/bin/bash

# Temperature LUT Properties
TEMP_TRANSITION_START=32 # degC
TEMP_TRANSITION_END=40   # degC
PWM_MAX=100              # %

#### Config
./set 0x00 0x88 # CR1
./set 0x01 0x10 # CR2
./set 0x02 0xb0 # CR3
./set 0x03 0xff # FFDC (Default)
./set 0x04 0xef # MASK
./set 0x05 0x18 # IFR (Default)
./set 0x06 40   # RHSH degC
./set 0x07 00   # RHSL
./set 0x08 50   # LOTSH degC
./set 0x09 00   # LOTSL
./set 0x0a 40   # ROTSH degC
./set 0x0b 00   # ROTSL
./set 0x0c 50   # LHSH degC
./set 0x0d 00   # LHSL
./set 0x0e 0xff # TCTH (Default)
./set 0x0f 0xff # TCTL (Default)

# User EEPROM
./set 0x10 0xba # Signature
./set 0x11 0xa0 # Type: Auto (LUT) Control
./set 0x12 0x01 # Version
./set 0x13 0x00
./set 0x14 0x00
./set 0x15 0x00
./set 0x16 0x00
./set 0x17 0x00

### LUT
TEMP_BASE=17 # degC
TEMP_STEP=2  # degC
TEMP_MAX=111 # degC
LUT_ADDR=LUT_BASE # Global for address manipulated below
PWM_VAL=0x00      # Global for PWM register values manipulated below
function lut_address () {
    local TEMP=$1
    LUT_BASE=0x20
    LUT_OFFSET=$(( ( TEMP - TEMP_BASE ) / TEMP_STEP ))
    LUT_ADDR=$(( LUT_BASE + LUT_OFFSET ))
    LUT_ADDR=`printf "0x%02x" $LUT_ADDR`
    return
}
function pwm_value () {
    local PWM=$1
    PWMR=`bc <<< "scale=2; $PWM * 256 / 100"`
    PWMR=`printf "%.0f" $PWMR`   # Rounds here.
    PWMR=`printf "0x%02x" $PWMR` # Hex here (for show).
    if (( PWMR > 0xff )); then
       PWMR=0xff
    fi
    PWM_VAL=$PWMR
    return
}

# Fill LUT
PWM=$PWM_MAX
for TEMP in `seq $TEMP_BASE $TEMP_STEP $TEMP_MAX`; do
    if (( TEMP < TEMP_TRANSITION_START )); then
	# Fill for low temperatures
	PWM=$PWM_MAX
    elif (( TEMP < TEMP_TRANSITION_END )); then
	# Fill for transition region
	PWM=`bc <<< "scale=2; $PWM / 2"`
    else # TEMP >= TEMP_TRANSITION_END
	# Fill for high temperatures
	PWM=0
    fi

    echo -e "LUT Fill: ${TEMP}degC\t${PWM}% Heat"
    lut_address $TEMP # Sets $LUT_ADDR global
    pwm_value $PWM    # Sets $PWM_VAL  global
    ./set $LUT_ADDR $PWM_VAL
done

### Operational
# Set Duty Cycle
./set 0x50 0x00 # PWMR