merged multi-channel branch with a major refactor and half a year of updates

1 files changed, 237 insertions, 0 deletions

diff --git a/hwdef-sofirn-lt1s-pro.c b/hwdef-sofirn-lt1s-pro.c
new file mode 100644
index 0000000..90c2c07
--- /dev/null
+++ b/hwdef-sofirn-lt1s-pro.c
@@ -0,0 +1,237 @@
+// BLF LT1S Pro hwdef functions
+// Copyright (C) 2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+
+void set_level_zero();
+
+void set_level_red(uint8_t level);
+void set_level_white_blend(uint8_t level);
+void set_level_auto_2ch_blend(uint8_t level);
+void set_level_auto_3ch_blend(uint8_t level);
+void set_level_red_white_blend(uint8_t level);
+
+bool gradual_tick_red(uint8_t gt);
+bool gradual_tick_white_blend(uint8_t gt);
+bool gradual_tick_auto_2ch_blend(uint8_t gt);
+bool gradual_tick_auto_3ch_blend(uint8_t gt);
+bool gradual_tick_red_white_blend(uint8_t gt);
+
+
+Channel channels[] = {
+    { // manual blend of warm and cool white
+        .set_level    = set_level_white_blend,
+        .gradual_tick = gradual_tick_white_blend,
+        .has_args     = 1
+    },
+    { // auto blend from warm white to cool white
+        .set_level    = set_level_auto_2ch_blend,
+        .gradual_tick = gradual_tick_auto_2ch_blend,
+        .has_args     = 0
+    },
+    { // auto blend from red to warm white to cool white
+        .set_level    = set_level_auto_3ch_blend,
+        .gradual_tick = gradual_tick_auto_3ch_blend,
+        .has_args     = 0
+    },
+    { // red only
+        .set_level    = set_level_red,
+        .gradual_tick = gradual_tick_red,
+        .has_args     = 0
+    },
+    { // manual white blend + adjustable red
+        .set_level    = set_level_red_white_blend,
+        .gradual_tick = gradual_tick_red_white_blend,
+        .has_args     = 1
+    }
+};
+
+
+// calculate a 3-channel "auto tint" blend
+// (like red -> warm white -> cool white)
+// results are placed in *a, *b, and *c vars
+// level : ramp level to convert into 3 channel levels
+// (assumes ramp table is "pwm1_levels")
+void calc_auto_3ch_blend(
+    PWM_DATATYPE *a,
+    PWM_DATATYPE *b,
+    PWM_DATATYPE *c,
+    uint8_t level) {
+
+    PWM_DATATYPE vpwm = PWM_GET(pwm1_levels, level);
+
+    // tint goes from 0 (red) to 127 (warm white) to 255 (cool white)
+    uint8_t mytint;
+    mytint = 255 * (uint16_t)level / RAMP_SIZE;
+
+    // red is high at 0, low at 255 (linear)
+    *a = (((PWM_DATATYPE2)(255 - mytint)
+         * (PWM_DATATYPE2)vpwm) + 127) / 255;
+    // warm white is low at 0 and 255, high at 127 (linear triangle)
+    *b = (((PWM_DATATYPE2)triangle_wave(mytint)
+         * (PWM_DATATYPE2)vpwm) + 127) / 255;
+    // cool white is low at 0, high at 255 (linear)
+    *c = (((PWM_DATATYPE2)mytint
+         * (PWM_DATATYPE2)vpwm) + 127) / 255;
+
+}
+
+
+void set_level_zero() {
+    WARM_PWM_LVL = 0;
+    COOL_PWM_LVL = 0;
+    RED_PWM_LVL  = 0;
+    PWM_CNT      = 0;  // reset phase
+}
+
+// single set of LEDs with 1 power channel and dynamic PWM
+void set_level_red(uint8_t level) {
+    RED_PWM_LVL  = PWM_GET(pwm1_levels, level);
+    // pulse frequency modulation, a.k.a. dynamic PWM
+    PWM_TOP = PWM_GET(pwm_tops, level);
+    // force reset phase when turning on from zero
+    // (because otherwise the initial response is inconsistent)
+    if (! actual_level) PWM_CNT = 0;
+}
+
+
+// warm + cool blend w/ dynamic PWM
+void set_level_white_blend(uint8_t level) {
+    PWM_DATATYPE warm_PWM, cool_PWM;
+    PWM_DATATYPE brightness = PWM_GET(pwm1_levels, level);
+    PWM_DATATYPE top        = PWM_GET(pwm_tops, level);
+    uint8_t blend           = cfg.channel_mode_args[channel_mode];
+
+    calc_2ch_blend(&warm_PWM, &cool_PWM, brightness, top, blend);
+
+    WARM_PWM_LVL = warm_PWM;
+    COOL_PWM_LVL = cool_PWM;
+    PWM_TOP = top;
+    if (! actual_level) PWM_CNT = 0;  // reset phase
+}
+
+
+// same as white blend, but tint is calculated from the ramp level
+void set_level_auto_2ch_blend(uint8_t level) {
+    PWM_DATATYPE warm_PWM, cool_PWM;
+    PWM_DATATYPE brightness = PWM_GET(pwm1_levels, level);
+    PWM_DATATYPE top        = PWM_GET(pwm_tops, level);
+    uint8_t blend           = 255 * (uint16_t)level / RAMP_SIZE;
+
+    calc_2ch_blend(&warm_PWM, &cool_PWM, brightness, top, blend);
+
+    WARM_PWM_LVL = warm_PWM;
+    COOL_PWM_LVL = cool_PWM;
+    PWM_TOP = top;
+    if (! actual_level) PWM_CNT = 0;  // reset phase
+}
+
+
+// "auto tint" channel mode with dynamic PWM
+void set_level_auto_3ch_blend(uint8_t level) {
+    PWM_DATATYPE a, b, c;
+    calc_auto_3ch_blend(&a, &b, &c, level);
+
+    // pulse frequency modulation, a.k.a. dynamic PWM
+    uint16_t top = PWM_GET(pwm_tops, level);
+
+    RED_PWM_LVL  = a;
+    WARM_PWM_LVL = b;
+    COOL_PWM_LVL = c;
+    PWM_TOP = top;
+    if (! actual_level) PWM_CNT = 0;
+}
+
+
+// "white + red" channel mode
+void set_level_red_white_blend(uint8_t level) {
+    // set the warm+cool white LEDs first
+    channel_mode = CM_WHITE;
+    set_level_white_blend(level);
+    channel_mode = CM_WHITE_RED;
+
+    PWM_DATATYPE vpwm = PWM_GET(pwm1_levels, level);
+
+    // set the red LED as a ratio of the white output level
+    // 0 = no red
+    // 255 = red at 100% of white channel PWM
+    uint8_t ratio = cfg.channel_mode_args[channel_mode];
+
+    RED_PWM_LVL = (((PWM_DATATYPE2)ratio * (PWM_DATATYPE2)vpwm) + 127) / 255;
+    if (! actual_level) PWM_CNT = 0;  // reset phase
+}
+
+
+///// "gradual tick" functions for smooth thermal regulation /////
+
+///// bump each channel toward a target value /////
+bool gradual_adjust(uint16_t red, uint16_t warm, uint16_t cool) {
+    GRADUAL_ADJUST_SIMPLE(red,  RED_PWM_LVL );
+    GRADUAL_ADJUST_SIMPLE(warm, WARM_PWM_LVL);
+    GRADUAL_ADJUST_SIMPLE(cool, COOL_PWM_LVL);
+
+    // check for completion
+    if ((red  == RED_PWM_LVL )
+     && (warm == WARM_PWM_LVL)
+     && (cool == COOL_PWM_LVL)) {
+        return true;  // done
+    }
+    return false;  // not done yet
+}
+
+bool gradual_tick_red(uint8_t gt) {
+    uint16_t red = PWM_GET(pwm1_levels, gt);
+    return gradual_adjust(red, 0, 0);
+}
+
+
+bool gradual_tick_white_blend(uint8_t gt) {
+    // figure out what exact PWM levels we're aiming for
+    PWM_DATATYPE warm_PWM, cool_PWM;
+    PWM_DATATYPE brightness = PWM_GET(pwm1_levels, gt);
+    PWM_DATATYPE top        = PWM_GET(pwm_tops, gt);
+    uint8_t blend           = cfg.channel_mode_args[channel_mode];
+
+    calc_2ch_blend(&warm_PWM, &cool_PWM, brightness, top, blend);
+
+    return gradual_adjust(0, warm_PWM, cool_PWM);
+}
+
+
+// same as white blend, but tint is calculated from the ramp level
+bool gradual_tick_auto_2ch_blend(uint8_t gt) {
+    // figure out what exact PWM levels we're aiming for
+    PWM_DATATYPE warm_PWM, cool_PWM;
+    PWM_DATATYPE brightness = PWM_GET(pwm1_levels, gt);
+    PWM_DATATYPE top        = PWM_GET(pwm_tops, gt);
+    uint8_t blend           = 255 * (uint16_t)gt / RAMP_SIZE;
+
+    calc_2ch_blend(&warm_PWM, &cool_PWM, brightness, top, blend);
+
+    return gradual_adjust(0, warm_PWM, cool_PWM);
+}
+
+
+bool gradual_tick_auto_3ch_blend(uint8_t gt) {
+    // figure out what exact PWM levels we're aiming for
+    PWM_DATATYPE red, warm, cool;
+    calc_auto_3ch_blend(&red, &warm, &cool, gt);
+    return gradual_adjust(red, warm, cool);
+}
+
+
+bool gradual_tick_red_white_blend(uint8_t gt) {
+    // figure out what exact PWM levels we're aiming for
+    PWM_DATATYPE red, warm, cool;
+    PWM_DATATYPE brightness = PWM_GET(pwm1_levels, gt);
+    PWM_DATATYPE top        = PWM_GET(pwm_tops, gt);
+    uint8_t blend           = cfg.channel_mode_args[CM_WHITE];
+    uint8_t ratio           = cfg.channel_mode_args[channel_mode];
+
+    red = (((PWM_DATATYPE2)ratio * (PWM_DATATYPE2)brightness) + 127) / 255;
+    calc_2ch_blend(&warm, &cool, brightness, top, blend);
+
+    return gradual_adjust(red, warm, cool);
+}
+