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// Emisar 2-channel generic w/ tint ramping + DD FET
// Copyright (C) 2021-2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
/*
* Pin / Name / Function
* 1 PA6 ch2 LED PWM (linear) (PWM1B)
* 2 PA5 R: red aux LED (PWM0B)
* 3 PA4 G: green aux LED
* 4 PA3 B: blue aux LED
* 5 PA2 button LED
* 6 PA1 Opamp 2 enable (channel 2 LEDs)
* 7 PA0 Opamp 1 enable (channel 1 LEDs)
* 8 GND GND
* 9 VCC VCC
* 10 PC5 (none)
* 11 PC4 (none)
* 12 PC3 RESET
* 13 PC2 (none)
* 14 PC1 SCK
* 15 PC0 ch1 LED PWM (FET) (PWM0A, 8-bit)
* 16 PB3 ch1 LED PWM (linear) (PWM1A)
* 17 PB2 MISO
* 18 PB1 MOSI / battery voltage (ADC6)
* 19 PB0 (none)
* 20 PA7 e-switch (PCINT7)
* ADC12 thermal sensor
*
* Both sets of LEDs use one pin to turn the Opamp on/off,
* and one pin to control the Opamp power level.
* The first channel also has a direct-drive FET for turbo.
*/
#define ATTINY 1634
#include <avr/io.h>
#define HWDEF_C_FILE hwdef-emisar-2ch-fet.c
// allow using aux LEDs as extra channel modes
#include "chan-rgbaux.h"
// channel modes:
// * 0. channel 1 only (linear + DD FET)
// * 1. channel 2 only (linear)
// * 2. both channels, tied together, max "200%" power + DD FET at top of ramp
// * 3. both channels, manual blend, max "100%" power + "200%" and DD FET at top of ramp
// * 4. both channels, auto blend, reversible (linear only)
#define NUM_CHANNEL_MODES (5 + NUM_RGB_AUX_CHANNEL_MODES)
enum channel_modes_e {
CM_CH1 = 0,
CM_CH2,
CM_BOTH,
CM_BLEND,
CM_AUTO,
RGB_AUX_ENUMS
};
// right-most bit first, modes are in fedcba9876543210 order
#define CHANNEL_MODES_ENABLED 0b0000000000011111
#define USE_CHANNEL_MODE_ARGS
// _, _, _, 128=middle CCT, 0=warm-to-cool
#define CHANNEL_MODE_ARGS 0,0,0,128,0,RGB_AUX_CM_ARGS
// can use some of the common handlers
#define USE_CALC_2CH_BLEND
#define PWM_CHANNELS 3 // old, remove this
#define PWM_BITS 16 // 0 to 16383 at variable Hz, not 0 to 255 at 16 kHz
#define PWM_GET PWM_GET8
#define PWM_DATATYPE uint16_t
#define PWM_DATATYPE2 uint16_t // only needs 32-bit if ramp values go over 255
#define PWM1_DATATYPE uint8_t // linear part of linear+FET ramp
#define PWM2_DATATYPE uint8_t // DD FET part of linear+FET ramp
#define PWM3_DATATYPE uint16_t // linear+FET ramp tops
#define PWM4_DATATYPE uint8_t // linear-only ramp
#define PWM5_DATATYPE uint16_t // linear-only ramp tops
// PWM parameters of both channels are tied together because they share a counter
#define PWM_TOP ICR1 // holds the TOP value for for variable-resolution PWM
#define PWM_TOP_INIT 255 // highest value used in top half of ramp
#define PWM_CNT TCNT1 // for dynamic PWM, reset phase
// main LEDs, linear
#define CH1_PIN PB3 // pin 16, Opamp reference
#define CH1_PWM OCR1A // OCR1A is the output compare register for PB3
#define CH1_ENABLE_PIN PA0 // pin 7, Opamp power
#define CH1_ENABLE_PORT PORTA // control port for PA0
// 2nd LEDs, linear
#define CH2_PIN PA6 // pin 1, 2nd LED Opamp reference
#define CH2_PWM OCR1B // OCR1B is the output compare register for PA6
#define CH2_ENABLE_PIN PA1 // pin 6, Opamp power
#define CH2_ENABLE_PORT PORTA // control port for PA1
// main LEDs, DD FET
#define CH3_PIN PC0 // pin 15, DD FET PWM
#define CH3_PWM OCR0A // OCR0A is the output compare register for PC0
// e-switch
#ifndef SWITCH_PIN
#define SWITCH_PIN PA7 // pin 20
#define SWITCH_PCINT PCINT7 // pin 20 pin change interrupt
#define SWITCH_PCIE PCIE0 // PCIE1 is for PCINT[7:0]
#define SWITCH_PCMSK PCMSK0 // PCMSK1 is for PCINT[7:0]
#define SWITCH_PORT PINA // PINA or PINB or PINC
#define SWITCH_PUE PUEA // pullup group A
#define PCINT_vect PCINT0_vect // ISR for PCINT[7:0]
#endif
#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened
#define VOLTAGE_PIN PB1 // Pin 18 / PB1 / ADC6
// pin to ADC mappings are in DS table 19-4
#define VOLTAGE_ADC ADC6D // digital input disable pin for PB1
// DIDR0/DIDR1 mappings are in DS section 19.13.5, 19.13.6
#define VOLTAGE_ADC_DIDR DIDR1 // DIDR channel for ADC6D
// DS tables 19-3, 19-4
// Bit 7 6 5 4 3 2 1 0
// REFS1 REFS0 REFEN ADC0EN MUX3 MUX2 MUX1 MUX0
// MUX[3:0] = 0, 1, 1, 0 for ADC6 / PB1
// divided by ...
// REFS[1:0] = 1, 0 for internal 1.1V reference
// other bits reserved
#define ADMUX_VOLTAGE_DIVIDER 0b10000110
#define ADC_PRSCL 0x07 // clk/128
// Raw ADC readings at 4.4V and 2.2V
// calibrate the voltage readout here
// estimated / calculated values are:
// (voltage - D1) * (R2/(R2+R1) * 1024 / 1.1)
// D1, R1, R2 = 0, 330, 100
#ifndef ADC_44
//#define ADC_44 981 // raw value at 4.40V
#define ADC_44 967 // manually tweaked so 4.16V will blink out 4.2
#endif
#ifndef ADC_22
//#define ADC_22 489 // raw value at 2.20V
#define ADC_22 482 // manually tweaked so 4.16V will blink out 4.2
#endif
// this light has aux LEDs under the optic
#define AUXLED_R_PIN PA5 // pin 2
#define AUXLED_G_PIN PA4 // pin 3
#define AUXLED_B_PIN PA3 // pin 4
#define AUXLED_RGB_PORT PORTA // PORTA or PORTB or PORTC
#define AUXLED_RGB_DDR DDRA // DDRA or DDRB or DDRC
#define AUXLED_RGB_PUE PUEA // PUEA or PUEB or PUEC
#define BUTTON_LED_PIN PA2 // pin 5
#define BUTTON_LED_PORT PORTA // for all "PA" pins
#define BUTTON_LED_DDR DDRA // for all "PA" pins
#define BUTTON_LED_PUE PUEA // for all "PA" pins
inline void hwdef_setup() {
// enable output ports
DDRC = (1 << CH3_PIN);
DDRB = (1 << CH1_PIN);
DDRA = (1 << CH2_PIN)
| (1 << AUXLED_R_PIN)
| (1 << AUXLED_G_PIN)
| (1 << AUXLED_B_PIN)
| (1 << BUTTON_LED_PIN)
| (1 << CH1_ENABLE_PIN)
| (1 << CH2_ENABLE_PIN)
;
// configure PWM
// Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter
// pre-scale for timer: N = 1
// Linear opamp PWM for both main and 2nd LEDs (10-bit)
// WGM1[3:0]: 1,0,1,0: PWM, Phase Correct, adjustable (DS table 12-5)
// CS1[2:0]: 0,0,1: clk/1 (No prescaling) (DS table 12-6)
// COM1A[1:0]: 1,0: PWM OC1A in the normal direction (DS table 12-4)
// COM1B[1:0]: 1,0: PWM OC1B in the normal direction (DS table 12-4)
TCCR1A = (1<<WGM11) | (0<<WGM10) // adjustable PWM (TOP=ICR1) (DS table 12-5)
| (1<<COM1A1) | (0<<COM1A0) // PWM 1A in normal direction (DS table 12-4)
| (1<<COM1B1) | (0<<COM1B0) // PWM 1B in normal direction (DS table 12-4)
;
TCCR1B = (0<<CS12) | (0<<CS11) | (1<<CS10) // clk/1 (no prescaling) (DS table 12-6)
| (1<<WGM13) | (0<<WGM12) // phase-correct adjustable PWM (DS table 12-5)
;
// FET PWM (8-bit; this channel can't do 10-bit)
// WGM0[2:0]: 0,0,1: PWM, Phase Correct, 8-bit (DS table 11-8)
// CS0[2:0]: 0,0,1: clk/1 (No prescaling) (DS table 11-9)
// COM0A[1:0]: 1,0: PWM OC0A in the normal direction (DS table 11-4)
// COM0B[1:0]: 1,0: PWM OC0B in the normal direction (DS table 11-7)
TCCR0A = (0<<WGM01) | (1<<WGM00) // 8-bit (TOP=0xFF) (DS table 11-8)
| (1<<COM0A1) | (0<<COM0A0) // PWM 0A in normal direction (DS table 11-4)
//| (1<<COM0B1) | (0<<COM0B0) // PWM 0B in normal direction (DS table 11-7)
;
TCCR0B = (0<<CS02) | (0<<CS01) | (1<<CS00) // clk/1 (no prescaling) (DS table 11-9)
| (0<<WGM02) // phase-correct PWM (DS table 11-8)
;
// set PWM resolution
PWM_TOP = PWM_TOP_INIT;
// set up e-switch
SWITCH_PUE = (1 << SWITCH_PIN); // pull-up for e-switch
SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt
}
#define LAYOUT_DEFINED
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