1 files changed, 104 insertions, 0 deletions
diff --git a/hwdef-emisar-d4.h b/hwdef-emisar-d4.h
new file mode 100644
index 0000000..7be700a
--- /dev/null
+++ b/hwdef-emisar-d4.h
@@ -0,0 +1,104 @@
+// Emisar D4 driver layout
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/*
+ *           ----
+ *   Reset -|1  8|- VCC
+ * eswitch -|2  7|-
+ * AUX LED -|3  6|- PWM (FET)
+ *     GND -|4  5|- PWM (1x7135)
+ *           ----
+ */
+
+#define ATTINY 85
+#include <avr/io.h>
+
+#define HWDEF_C_FILE hwdef-emisar-d4.c
+
+// allow using aux LEDs as extra channel modes (when they exist)
+//#ifdef AUXLED_PIN
+#if 0
+#include "chan-aux.h"
+#else
+#define NUM_AUX_CHANNEL_MODES  0
+#endif
+
+// channel modes
+// * 0. FET+7135 stacked
+// * 1. button LED (only on some derivative models, like BLF Q8)
+#define NUM_CHANNEL_MODES   (1 + NUM_AUX_CHANNEL_MODES)
+enum CHANNEL_MODES {
+    CM_MAIN = 0,
+    CM_AUX,
+};
+
+#define DEFAULT_CHANNEL_MODE  CM_MAIN
+
+// right-most bit first, modes are in fedcba9876543210 order
+#define CHANNEL_MODES_ENABLED 0b00000001
+
+
+#define PWM_CHANNELS 2  // old, remove this
+
+#define PWM_BITS      8       // attiny85 only supports up to 8 bits
+#define PWM_GET       PWM_GET8
+#define PWM_DATATYPE  uint8_t
+#define PWM_DATATYPE2 uint16_t
+#define PWM1_DATATYPE uint8_t   // 1x7135 ramp
+#define PWM2_DATATYPE uint8_t   // DD FET ramp
+
+#define PWM_TOP_INIT  255    // highest value used in top half of ramp
+
+// 1x7135 channel
+#ifndef CH1_PIN
+#define CH1_PIN  PB0        // pin 5, 1x7135 PWM
+#define CH1_PWM  OCR0A      // OCR0A is the output compare register for PB0
+#endif
+
+// DD FET channel
+#ifndef CH2_PIN
+#define CH2_PIN  PB1        // pin 6, FET PWM
+#define CH2_PWM  OCR0B      // OCR0B is the output compare register for PB1
+#endif
+
+//#define AUXLED_PIN   PB4    // pin 3
+
+// e-switch
+#ifndef SWITCH_PIN
+#define SWITCH_PIN   PB3    // pin 2
+#define SWITCH_PCINT PCINT3 // pin 2 pin change interrupt
+#endif
+
+// (FIXME: remove?  not used?)
+//#define VOLTAGE_PIN PB2     // pin 7, voltage ADC
+//#define ADC_CHANNEL 0x01    // MUX 01 corresponds with PB2
+//#define ADC_DIDR    ADC1D   // Digital input disable bit corresponding with PB2
+#define ADC_PRSCL   0x07    // clk/128
+
+// average drop across diode on this hardware
+#ifndef VOLTAGE_FUDGE_FACTOR
+#define VOLTAGE_FUDGE_FACTOR 5  // add 0.25V
+#endif
+
+#define FAST 0xA3           // fast PWM both channels
+#define PHASE 0xA1          // phase-correct PWM both channels
+
+
+inline void hwdef_setup() {
+    // configure PWM channels
+    DDRB = (1 << CH1_PIN)
+         | (1 << CH2_PIN);
+
+    TCCR0B = 0x01; // pre-scaler for timer (1 => 1, 2 => 8, 3 => 64...)
+    TCCR0A = PHASE;
+
+    // configure e-switch
+    PORTB = (1 << SWITCH_PIN);  // e-switch is the only input
+    PCMSK = (1 << SWITCH_PIN);  // pin change interrupt uses this pin
+}
+
+
+#define LAYOUT_DEFINED
+