1 files changed, 67 insertions, 0 deletions
diff --git a/hwdef-Sofirn_LT1S-Pro.c b/hwdef-Sofirn_LT1S-Pro.c
new file mode 100644
index 0000000..3c31c96
--- /dev/null
+++ b/hwdef-Sofirn_LT1S-Pro.c
@@ -0,0 +1,67 @@
+// BLF LT1S Pro hwdef functions
+// Copyright (C) 2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+
+// "auto tint" channel mode
+void set_level_auto_3ch_blend(uint8_t level) {
+    BLEND_PWM_DATATYPE vpwm;
+
+    if (level == 0) {
+        vpwm  = 0;
+    } else {
+        level --;  // PWM array index = level - 1
+        vpwm  = PWM_GET(blend_pwm_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;
+
+    BLEND_PWM_DATATYPE a, b, c;
+
+    // red is high at 0, low at 255
+    a = (((PWM_DATATYPE2)(255 - mytint)
+          * (PWM_DATATYPE2)vpwm) + 127) / 255;
+    // warm white is low at 0 and 255, high at 127
+    b = (((PWM_DATATYPE2)triangle_wave(mytint)
+          * (PWM_DATATYPE2)vpwm) + 127) / 255;
+    // cool white is low at 0, high at 255
+    c = (((PWM_DATATYPE2)mytint
+          * (PWM_DATATYPE2)vpwm) + 127) / 255;
+
+    RED_PWM_LVL  = a;
+    WARM_PWM_LVL = b;
+    COOL_PWM_LVL = c;
+}
+
+
+// "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_2ch_blend(level);
+    channel_mode = CM_WHITE_RED;
+
+    BLEND_PWM_DATATYPE vpwm;
+
+    // set the red LED as a ratio of the white output level
+    if (level == 0) {
+        vpwm  = 0;
+    } else {
+        level --;  // PWM array index = level - 1
+        vpwm  = PWM_GET(blend_pwm_levels, level);
+    }
+
+    // 0 = no red
+    // 255 = red at 100% of white channel PWM
+    uint8_t ratio = channel_mode_args[channel_mode];
+
+    PWM_DATATYPE red_pwm;
+    red_pwm = (((PWM_DATATYPE2)ratio * (PWM_DATATYPE2)vpwm) + 127) / 255;
+
+    RED_PWM_LVL = red_pwm;
+}
+