converted Emisar D4 and BLF Q8 to multi-channel,

and enabled previously-removed tactical mode on the Q8
since there seems to be enough space now
(also lowercased their hwdef files)

5 files changed, 165 insertions, 50 deletions

diff --git a/hwdef-Emisar_D4.h b/hwdef-Emisar_D4.h
deleted file mode 100644
index fdb42a1..0000000
--- a/hwdef-Emisar_D4.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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 LAYOUT_DEFINED
-
-#define PWM_CHANNELS 2
-
-//#define AUXLED_PIN   PB4    // pin 3
-
-#ifndef SWITCH_PIN
-#define SWITCH_PIN   PB3    // pin 2
-#define SWITCH_PCINT PCINT3 // pin 2 pin change interrupt
-#endif
-
-#ifndef PWM1_PIN
-#define PWM1_PIN PB0        // pin 5, 1x7135 PWM
-#define PWM1_LVL OCR0A      // OCR0A is the output compare register for PB0
-#endif
-#ifndef PWM2_PIN
-#define PWM2_PIN PB1        // pin 6, FET PWM
-#define PWM2_LVL OCR0B      // OCR0B is the output compare register for PB1
-#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
-
diff --git a/hwdef-BLF_Q8.h b/hwdef-blf-q8.h
index da55bd4..cdf311d 100644
--- a/hwdef-BLF_Q8.h
+++ b/hwdef-blf-q8.h
@@ -16,5 +16,5 @@
 #endif
 
 // Q8 driver is the same as a D4, basically
-#include "hwdef-Emisar_D4.h"
+#include "hwdef-emisar-d4.h"
 
diff --git a/hwdef-emisar-d4.c b/hwdef-emisar-d4.c
new file mode 100644
index 0000000..6069530
--- /dev/null
+++ b/hwdef-emisar-d4.c
@@ -0,0 +1,59 @@
+// Emisar D4 PWM helper functions
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+//#ifdef AUXLED_PIN
+#if 0
+#include "chan-aux.c"
+#else
+#define AUX_CHANNELS
+#endif
+
+void set_level_main(uint8_t level);
+bool gradual_tick_main(uint8_t gt);
+
+
+Channel channels[] = {
+    { // main LEDs
+        .set_level    = set_level_main,
+        .gradual_tick = gradual_tick_main
+    },
+    AUX_CHANNELS
+};
+
+
+// TODO: implement delta-sigma modulation for better low modes
+
+// single set of LEDs with 2 stacked power channels, DDFET+1 or DDFET+linear
+void set_level_main(uint8_t level) {
+    if (level == 0) {
+        CH1_PWM = 0;
+        CH2_PWM = 0;
+        return;
+    }
+
+    level --;  // PWM array index = level - 1
+    PWM_DATATYPE ch1_pwm = PWM_GET(pwm1_levels, level);
+    PWM_DATATYPE ch2_pwm = PWM_GET(pwm2_levels, level);
+
+    CH1_PWM = ch1_pwm;
+    CH2_PWM = ch2_pwm;
+}
+
+bool gradual_tick_main(uint8_t gt) {
+    PWM_DATATYPE pwm1 = PWM_GET(pwm1_levels, gt);
+    PWM_DATATYPE pwm2 = PWM_GET(pwm2_levels, gt);
+
+    GRADUAL_ADJUST_STACKED(pwm1, CH1_PWM, PWM_TOP_INIT);
+    GRADUAL_ADJUST_SIMPLE (pwm2, CH2_PWM);
+
+    if (   (pwm1 == CH1_PWM)
+        && (pwm2 == CH2_PWM)
+       ) {
+        return true;  // done
+    }
+    return false;  // not done yet
+}
+
diff --git a/hwdef-emisar-d4.h b/hwdef-emisar-d4.h
new file mode 100644
index 0000000..b3a7500
--- /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
+
+//#define AUXLED_PIN   PB4    // pin 3
+
+// 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
+
+// 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
+
diff --git a/hwdef-emisar-d4v2.c b/hwdef-emisar-d4v2.c
index c4ae5dd..ada4eb8 100644
--- a/hwdef-emisar-d4v2.c
+++ b/hwdef-emisar-d4v2.c
@@ -11,7 +11,7 @@ bool gradual_tick_main(uint8_t gt);
 
 
 Channel channels[] = {
-    { // channel 1 only
+    { // main LEDs
         .set_level    = set_level_main,
         .gradual_tick = gradual_tick_main
     },