From 13e166d9c42845e2622605e94d4a0c38fa5443a0 Mon Sep 17 00:00:00 2001 From: Wilba6582 Date: Fri, 28 Sep 2018 00:40:44 +1000 Subject: RAMA U80-A, wilba.tech WT60-A, WT65-A, WT80-A, IS31FL3736 driver (#3925) * Initial commit of RAMA U80-A * Initial commit of RAMA U80-A * Moved IS31FL3736 driver, minor cleanups * Superficial stuff * Review changes * Refactored to use common code. --- keyboards/wilba_tech/wt_mono_backlight.c | 116 +++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 keyboards/wilba_tech/wt_mono_backlight.c (limited to 'keyboards/wilba_tech/wt_mono_backlight.c') diff --git a/keyboards/wilba_tech/wt_mono_backlight.c b/keyboards/wilba_tech/wt_mono_backlight.c new file mode 100644 index 000000000..bf485bce1 --- /dev/null +++ b/keyboards/wilba_tech/wt_mono_backlight.c @@ -0,0 +1,116 @@ +/* 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 . + */ + +#include "wt_mono_backlight.h" +#include "drivers/avr/i2c_master.h" +#include "drivers/issi/is31fl3736.h" + +#include + +#define ISSI_ADDR_DEFAULT 0x50 + +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_init_drivers(void) +{ + // Initialize I2C + i2c_init(); + IS31FL3736_init( ISSI_ADDR_DEFAULT ); + + for ( uint8_t index = 0; index < 96; index++ ) { + IS31FL3736_mono_set_led_control_register( index, true ); + } + IS31FL3736_update_led_control_registers( ISSI_ADDR_DEFAULT, 0x00 ); +} + + +// This is (F_CPU/1024) / 20 Hz +// = 15625 Hz / 20 Hz +// = 781 +#define TIMER3_TOP 781 + +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 offset = ( g_tick << g_config_effect_speed ) & 0xFF; + + backlight_set_brightness_all( offset ); +} + +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++; + + //backlight_effect_cycle_all(); + backlight_set_brightness_all( 255 ); +} + +void backlight_update_pwm_buffers(void) +{ + IS31FL3736_update_pwm_buffers(ISSI_ADDR_DEFAULT,0x00); +} + +void backlight_set_brightness_all( uint8_t value ) +{ + IS31FL3736_mono_set_brightness_all( value ); +} + -- cgit v1.2.3-24-g4f1b