From 66ef1e3d6770e388d631d25e4cd1c6b1640cea24 Mon Sep 17 00:00:00 2001 From: Wilba6582 Date: Mon, 1 Oct 2018 01:35:10 +1000 Subject: RAMA M6-B and IS31FL3218 driver (#4021) * Initial RAMA M6-B commit. * Moved IS31FL3218 driver, minor cleanups * Refactor, added dynamic keymap. * Added dynamic keymaps to RAMA M6-A * Refactor M6-A and M6-B to use common code. * Formatting * Cleanup * Cleanup * Changes from review --- keyboards/rama/m6_b/rgb_backlight.c | 139 ++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 keyboards/rama/m6_b/rgb_backlight.c (limited to 'keyboards/rama/m6_b/rgb_backlight.c') diff --git a/keyboards/rama/m6_b/rgb_backlight.c b/keyboards/rama/m6_b/rgb_backlight.c new file mode 100644 index 0000000000..8f7ac06303 --- /dev/null +++ b/keyboards/rama/m6_b/rgb_backlight.c @@ -0,0 +1,139 @@ +/* Copyright 2018 Jason Williams (Wilba) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#if RGB_BACKLIGHT_ENABLED + +#include "rgb_backlight.h" +//#include "rgb_backlight_api.h" + +#include +#include +#include +#include "progmem.h" + +#include "quantum/color.h" +#include "drivers/avr/i2c_master.h" +#include "drivers/issi/is31fl3218.h" + +bool g_suspend_state = false; + +// Global tick at 20 Hz +uint32_t g_tick = 0; +uint8_t g_config_effect_speed = 0; +uint8_t g_config_brightness = 255; + +void backlight_update_pwm_buffers(void) +{ + IS31FL3218_update_pwm_buffers(); +} + +void backlight_set_color( int index, uint8_t red, uint8_t green, uint8_t blue ) +{ + IS31FL3218_set_color( index, red, green, blue ); +} + +void backlight_set_color_all( uint8_t red, uint8_t green, uint8_t blue ) +{ + IS31FL3218_set_color_all( red, green, blue ); +} + + +// This is (F_CPU/1024) / 20 Hz +// = 15625 Hz / 20 Hz +// = 781 +#define TIMER3_TOP 260 + +void backlight_timer_init(void) +{ + static uint8_t backlight_timer_is_init = 0; + if ( backlight_timer_is_init ) + { + return; + } + backlight_timer_is_init = 1; + + // Timer 3 setup + TCCR3B = _BV(WGM32) | // CTC mode OCR3A as TOP + _BV(CS32) | _BV(CS30); // prescale by /1024 + // Set TOP value + uint8_t sreg = SREG; + cli(); + + OCR3AH = (TIMER3_TOP >> 8) & 0xff; + OCR3AL = TIMER3_TOP & 0xff; + SREG = sreg; +} + +void backlight_timer_enable(void) +{ + TIMSK3 |= _BV(OCIE3A); +} + +void backlight_timer_disable(void) +{ + TIMSK3 &= ~_BV(OCIE3A); +} + +void backlight_set_suspend_state(bool state) +{ + g_suspend_state = state; +} + +void backlight_effect_cycle_all(void) +{ + uint8_t hueOffset = ( g_tick << g_config_effect_speed ) & 0xFF; + uint8_t satOffset = 127; + // Relies on hue being 8-bit and wrapping + for ( int i=0; i<6; i++ ) + { + HSV hsv = { .h = hueOffset, .s = satOffset, .v = g_config_brightness }; + RGB rgb = hsv_to_rgb( hsv ); + backlight_set_color( i, rgb.r, rgb.g, rgb.b ); + } +} + +ISR(TIMER3_COMPA_vect) +{ + // delay 1 second before driving LEDs or doing anything else + static uint8_t startup_tick = 0; + if ( startup_tick < 20 ) + { + startup_tick++; + return; + } + + g_tick++; + + if ( g_suspend_state ) + { + backlight_set_color_all( 0, 0, 0 ); + } + else + { + //HSV hsv = { .h = 240, .s = 255, .v = g_config_brightness }; + //RGB rgb = hsv_to_rgb( hsv ); + //backlight_set_color_all( rgb.r, rgb.g, rgb.b ); + backlight_effect_cycle_all(); + } +} + +void backlight_init_drivers(void) +{ + // Initialize I2C + i2c_init(); + IS31FL3218_init(); +} + +#endif // RGB_BACKLIGHT_ENABLED -- cgit v1.2.3