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Diffstat (limited to 'hwdef-blf-lt1.c')
| -rw-r--r-- | hwdef-blf-lt1.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/hwdef-blf-lt1.c b/hwdef-blf-lt1.c deleted file mode 100644 index 8a4c0e1..0000000 --- a/hwdef-blf-lt1.c +++ /dev/null @@ -1,204 +0,0 @@ -// BLF LT1 PWM functions -// Copyright (C) 2023 Selene ToyKeeper -// SPDX-License-Identifier: GPL-3.0-or-later -#pragma once - - -void set_level_zero(); - -void set_level_ch1(uint8_t level); -void set_level_ch2(uint8_t level); -void set_level_both(uint8_t level); -void set_level_blend(uint8_t level); -//void set_level_auto(uint8_t level); // redundant - -#if 0 // gradual adjustments are disabled to save space -bool gradual_tick_ch1(uint8_t gt); -bool gradual_tick_ch2(uint8_t gt); -bool gradual_tick_both(uint8_t gt); -bool gradual_tick_blend(uint8_t gt); -//bool gradual_tick_auto(uint8_t gt); // redundant -#endif - - -Channel channels[] = { - { // channel 1 only - .set_level = set_level_ch1, - //.gradual_tick = gradual_tick_ch1, - .has_args = 0 - }, - { // channel 2 only - .set_level = set_level_ch2, - //.gradual_tick = gradual_tick_ch2, - .has_args = 0 - }, - { // both channels, tied together (max "200%" power) - .set_level = set_level_both, - //.gradual_tick = gradual_tick_both, - .has_args = 0 - }, - { // both channels, manual blend (max "100%" power) - .set_level = set_level_blend, - //.gradual_tick = gradual_tick_blend, - .has_args = 1 - }, - { // both channels, auto blend - .set_level = set_level_blend, - //.gradual_tick = gradual_tick_blend, - .has_args = 1 - }, -}; - -void set_level_zero() { - // disable timer 0 overflow interrupt - // (helps improve button press handling from Off state) - DSM_INTCTRL &= ~DSM_OVF_bm; - - // turn off all LEDs - ch1_dsm_lvl = 0; - ch2_dsm_lvl = 0; - CH1_PWM = 0; - CH2_PWM = 0; -} - -// wrap setting the dsm vars, to get a faster response -// (just setting *_dsm_lvl doesn't work well for strobes) -void set_hw_levels(PWM_DATATYPE ch1, PWM_DATATYPE ch2) { - // set delta-sigma soft levels - ch1_dsm_lvl = ch1; - ch2_dsm_lvl = ch2; - - // set hardware PWM levels and init dsm loop - CH1_PWM = ch1_pwm = ch1 >> 7; - CH2_PWM = ch2_pwm = ch2 >> 7; - - // enable timer overflow interrupt so DSM can work - DSM_INTCTRL |= DSM_OVF_bm; -} - -// delta-sigma modulation of PWM outputs -// happens on each Timer overflow (every 512 cpu clock cycles) -// uses 8-bit pwm w/ 7-bit dsm (0b 0PPP PPPP PDDD DDDD) -ISR(DSM_vect) { - // set new hardware values first, - // for best timing (reduce effect of interrupt jitter) - CH1_PWM = ch1_pwm; - CH2_PWM = ch2_pwm; - - // calculate next values, now that timing matters less - - // accumulate error - ch1_dsm += (ch1_dsm_lvl & 0x007f); - // next PWM = base PWM value + carry bit - ch1_pwm = (ch1_dsm_lvl >> 7) + (ch1_dsm > 0x7f); - // clear carry bit - ch1_dsm &= 0x7f; - - // repeat for other channels - - ch2_dsm += (ch2_dsm_lvl & 0x007f); - ch2_pwm = (ch2_dsm_lvl >> 7) + (ch2_dsm > 0x7f); - ch2_dsm &= 0x7f; -} - - -void set_level_ch1(uint8_t level) { - set_hw_levels(PWM_GET(pwm1_levels, level), 0); -} - -void set_level_ch2(uint8_t level) { - set_hw_levels(0, PWM_GET(pwm1_levels, level)); -} - -void set_level_both(uint8_t level) { - PWM_DATATYPE pwm = PWM_GET(pwm1_levels, level); - set_hw_levels(pwm, pwm); -} - -void blend_helper(PWM_DATATYPE *warm, PWM_DATATYPE *cool, uint8_t level) { - PWM_DATATYPE brightness = PWM_GET(pwm1_levels, level); - uint8_t blend; - if (channel_mode == CM_AUTO) { - blend = 255 * (uint16_t)level / RAMP_SIZE; - if (cfg.channel_mode_args[channel_mode] & 0b01000000) - blend = 255 - blend; - } else { - blend = cfg.channel_mode_args[channel_mode]; - } - - calc_2ch_blend(warm, cool, brightness, DSM_TOP, blend); -} - -void set_level_blend(uint8_t level) { - PWM_DATATYPE warm, cool; - blend_helper(&warm, &cool, level); - set_hw_levels(warm, cool); -} - -/* -void set_level_auto(uint8_t level) { - PWM_DATATYPE warm, cool; - blend_helper(&warm, &cool, level); - set_hw_levels(warm, cool); -} -*/ - -///// "gradual tick" functions for smooth thermal regulation ///// -// (and other smooth adjustments) - -#if 0 // disabled to save space -///// bump each channel toward a target value ///// -bool gradual_adjust(PWM_DATATYPE ch1, PWM_DATATYPE ch2) { - // adjust multiple times based on current brightness - // (so it adjusts faster/coarser when bright, slower/finer when dim) - - // higher shift = slower/finer adjustments - const uint8_t shift = 9; // ((255 << 7) >> 9) = 63 max - uint8_t steps; - - steps = ch1_dsm_lvl >> shift; - for (uint8_t i=0; i<=steps; i++) - GRADUAL_ADJUST_SIMPLE(ch1, ch1_dsm_lvl); - - steps = ch2_dsm_lvl >> shift; - for (uint8_t i=0; i<=steps; i++) - GRADUAL_ADJUST_SIMPLE(ch2, ch2_dsm_lvl); - - if ((ch1 == ch1_dsm_lvl) - && (ch2 == ch2_dsm_lvl )) { - return true; // done - } - return false; // not done yet -} - -bool gradual_tick_ch1(uint8_t gt) { - PWM_DATATYPE pwm = PWM_GET(pwm1_levels, gt); - return gradual_adjust(pwm, 0); -} - -bool gradual_tick_ch2(uint8_t gt) { - PWM_DATATYPE pwm = PWM_GET(pwm1_levels, gt); - return gradual_adjust(0, pwm); -} - -bool gradual_tick_both(uint8_t gt) { - PWM_DATATYPE pwm = PWM_GET(pwm1_levels, gt); - return gradual_adjust(pwm, pwm); -} - -bool gradual_tick_blend(uint8_t gt) { - PWM_DATATYPE warm, cool; - blend_helper(&warm, &cool, gt); - return gradual_adjust(warm, cool); -} - -/* -bool gradual_tick_auto(uint8_t gt) { - PWM_DATATYPE warm, cool; - blend_helper(&warm, &cool, gt); - return gradual_adjust(warm, cool); -} -*/ - -#endif // if 0 - |