From b4f3febe8dff3289ba6d05f02c4ae6914f5981be Mon Sep 17 00:00:00 2001 From: Kai Ryu Date: Tue, 15 Apr 2014 16:28:48 +0900 Subject: [PATCH] New branch for breathing led feature --- common.mk | 5 ++ common/backlight.c | 36 ++++++++++++-- common/backlight.h | 3 ++ common/breathing_led.c | 106 +++++++++++++++++++++++++++++++++++++++++ common/breathing_led.h | 39 +++++++++++++++ common/eeconfig.c | 8 ++++ common/eeconfig.h | 6 +++ 7 files changed, 199 insertions(+), 4 deletions(-) create mode 100644 common/breathing_led.c create mode 100644 common/breathing_led.h diff --git a/common.mk b/common.mk index bef00a3c..09561cba 100644 --- a/common.mk +++ b/common.mk @@ -54,6 +54,11 @@ ifdef SLEEP_LED_ENABLE OPT_DEFS += -DNO_SUSPEND_POWER_DOWN endif +ifdef BREATHING_LED_ENABLE + SRC += $(COMMON_DIR)/breathing_led.c + OPT_DEFS += -DBREATHING_LED_ENABLE +endif + ifdef BACKLIGHT_ENABLE SRC += $(COMMON_DIR)/backlight.c OPT_DEFS += -DBACKLIGHT_ENABLE diff --git a/common/backlight.c b/common/backlight.c index a0b2ce50..ee8169c6 100644 --- a/common/backlight.c +++ b/common/backlight.c @@ -16,6 +16,7 @@ along with this program. If not, see . */ #include "backlight.h" +#include "breathing_led.h" #include "eeconfig.h" #include "debug.h" @@ -33,7 +34,7 @@ void backlight_init(void) void backlight_increase(void) { -#ifdef BACKLIGHT_CUSTOM +#if defined(BACKLIGHT_CUSTOM) || defined(BREATHING_LED_ENABLE) if (backlight_config.enable) { if (backlight_config.level < BACKLIGHT_LEVELS) { backlight_config.level++; @@ -42,6 +43,9 @@ void backlight_increase(void) dprintf("backlight custom increase: %u\n", backlight_config.level); backlight_set(backlight_config.level); } +#ifdef BREATHING_LED_ENABLE + breathing_led_increase(); +#endif #else if(backlight_config.level < BACKLIGHT_LEVELS) { @@ -56,7 +60,7 @@ void backlight_increase(void) void backlight_decrease(void) { -#ifdef BACKLIGHT_CUSTOM +#if defined(BACKLIGHT_CUSTOM) || defined(BREATHING_LED_ENABLE) if (backlight_config.enable) { if(backlight_config.level > 1) { @@ -66,6 +70,9 @@ void backlight_decrease(void) dprintf("backlight custom decrease: %u\n", backlight_config.level); backlight_set(backlight_config.level); } +#ifdef BREATHING_LED_ENABLE + breathing_led_decrease(); +#endif #else if(backlight_config.level > 0) { @@ -80,16 +87,37 @@ void backlight_decrease(void) void backlight_toggle(void) { +#ifdef BREATHING_LED_ENABLE + if (breathing_led_is_enabled()) { + breathing_led_disable(); + backlight_disable(); + return; + } +#endif backlight_config.enable ^= 1; - if (backlight_config.enable) - { + if (backlight_config.enable) { +#if defined(BACKLIGHT_CUSTOM) || defined(BREATHING_LED_ENABLE) + backlight_enable(); +#endif if (backlight_config.level == 0) { backlight_config.level = 1; } } + else { +#ifndef BREATHING_LED_ENABLE +#ifdef BACKLIGHT_CUSTOM + backlight_disable(); +#endif +#endif + } eeconfig_write_backlight(backlight_config.raw); dprintf("backlight toggle: %u\n", backlight_config.enable); backlight_set(backlight_config.enable ? backlight_config.level : 0); +#ifdef BREATHING_LED_ENABLE + if (!backlight_config.enable) { + breathing_led_enable(); + } +#endif } void backlight_step(void) diff --git a/common/backlight.h b/common/backlight.h index 685c422a..a33c727a 100644 --- a/common/backlight.h +++ b/common/backlight.h @@ -36,6 +36,9 @@ void backlight_decrease(void); void backlight_toggle(void); void backlight_step(void); +void backlight_enable(void); +void backlight_disable(void); void backlight_set(uint8_t level); +void backlight_set_raw(uint8_t raw); #endif diff --git a/common/breathing_led.c b/common/breathing_led.c new file mode 100644 index 00000000..d71bf5b8 --- /dev/null +++ b/common/breathing_led.c @@ -0,0 +1,106 @@ +#include +#include +#include +#include "led.h" +#include "breathing_led.h" +#include "backlight.h" +#include "debug.h" + +#define BREATHING_LED_TIMER_TOP F_CPU/64 + +breathing_led_config_t breathing_led_config; + +void breathing_led_init(void) +{ + /* Timer3 setup */ + /* CTC mode */ + TCCR3B |= _BV(WGM12); + /* Clock selelct: clk/1 */ + TCCR3B |= _BV(CS10); + /* Set TOP value */ + uint8_t sreg = SREG; + cli(); + OCR3AH = (BREATHING_LED_TIMER_TOP>>8)&0xff; + OCR3AL = BREATHING_LED_TIMER_TOP&0xff; + SREG = sreg; +} + +bool breathing_led_is_enabled(void) +{ + return breathing_led_config.enable; +} + +void breathing_led_enable(void) +{ + /* Enable Compare Match Interrupt */ + TIMSK3 |= _BV(OCIE3A); + breathing_led_config.enable = true; + dprintf("breathing led on: %u\n", breathing_led_config.enable); + eeconfig_write_breathing_led(breathing_led_config.raw); +} + +void breathing_led_disable(void) +{ + /* Disable Compare Match Interrupt */ + TIMSK3 &= ~_BV(OCIE3A); + breathing_led_config.enable = false; + dprintf("breathing led off: %u\n", breathing_led_config.enable); + eeconfig_write_breathing_led(breathing_led_config.raw); +} + +void breathing_led_toggle(void) +{ + /* Disable Compare Match Interrupt */ + TIMSK3 ^= _BV(OCIE3A); + breathing_led_config.enable ^= 1; + dprintf("breathing led toggle: %u\n", breathing_led_config.enable); + eeconfig_write_breathing_led(breathing_led_config.raw); +} + +void breathing_led_increase(void) +{ + if (breathing_led_config.enable) { + if (breathing_led_config.level < BREATHING_LED_LEVELS) { + breathing_led_config.level++; + eeconfig_write_breathing_led(breathing_led_config.raw); + } + dprintf("breathing led speed increase: %u\n", breathing_led_config.level); + } +} + +void breathing_led_decrease(void) +{ + if (breathing_led_config.enable) { + if (breathing_led_config.level > 0) + { + breathing_led_config.level--; + eeconfig_write_breathing_led(breathing_led_config.raw); + } + dprintf("breathing led speed decrease: %u\n", breathing_led_config.level); + } +} + +/* Breathing LED brighness(PWM On period) table + * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle + * + * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63 + * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i } + */ +static const uint8_t breathing_table[64] PROGMEM = { +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, +15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, +255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, +15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +ISR(TIMER3_COMPA_vect) +{ + uint8_t index = 0; + uint8_t step = 0; + step++; + if (step >= BREATHING_LED_LEVELS - breathing_led_config.level) { + step = 0; + index++; + backlight_set_raw(pgm_read_byte(&breathing_table[index])); + } +} diff --git a/common/breathing_led.h b/common/breathing_led.h new file mode 100644 index 00000000..fb31668f --- /dev/null +++ b/common/breathing_led.h @@ -0,0 +1,39 @@ +#ifndef BREATHING_LED_H +#define BREATHING_LED_H + + +#ifdef BREATHING_LED_ENABLE + +#include +#include + +#ifndef BREATHING_LED_LEVEL +#define BREATHING_LED_LEVEL 1 +#endif + +typedef union { + uint8_t raw; + struct { + bool enable:1; + uint8_t level:7; + }; +} breathing_led_config_t; + +void breathing_led_init(void); +bool breathing_led_is_enabled(void); +void breathing_led_enable(void); +void breathing_led_disable(void); +void breathing_led_toggle(void); +void breathing_led_increase(void); +void breathing_led_decrease(void); + +#else + +#define breathing_led_init() +#define breathing_led_enable() +#define breathing_led_disable() +#define breathing_led_toggle() + +#endif + +#endif diff --git a/common/eeconfig.c b/common/eeconfig.c index 5aadf1c5..ab9bae3c 100644 --- a/common/eeconfig.c +++ b/common/eeconfig.c @@ -14,6 +14,9 @@ void eeconfig_init(void) #ifdef BACKLIGHT_ENABLE eeprom_write_byte(EECONFIG_BACKLIGHT, 0); #endif +#ifdef BREATHING_LED_ENABLE + eeprom_write_byte(EECONFIG_BREATHING_LED, 0); +#endif #ifdef KEYMAP_EX_ENABLE keymap_ex_init(); #endif @@ -50,3 +53,8 @@ void eeconfig_write_keymap(uint8_t val) { eeprom_write_byte(EECONFIG_KEYMAP, val uint8_t eeconfig_read_backlight(void) { return eeprom_read_byte(EECONFIG_BACKLIGHT); } void eeconfig_write_backlight(uint8_t val) { eeprom_write_byte(EECONFIG_BACKLIGHT, val); } #endif + +#ifdef BREATHING_LED_ENABLE +uint8_t eeconfig_read_breathing_led(void) { return eeprom_read_byte(EECONFIG_BREATHING_LED); } +void eeconfig_write_breathing_led(uint8_t val) { eeprom_write_byte(EECONFIG_BREATHING_LED, val); } +#endif diff --git a/common/eeconfig.h b/common/eeconfig.h index e1b5ae28..36c18143 100644 --- a/common/eeconfig.h +++ b/common/eeconfig.h @@ -31,6 +31,7 @@ along with this program. If not, see . #define EECONFIG_KEYMAP (uint8_t *)4 #define EECONFIG_MOUSEKEY_ACCEL (uint8_t *)5 #define EECONFIG_BACKLIGHT (uint8_t *)6 +#define EECONFIG_BREATHING_LED (uint8_t *)7 /* debug bit */ @@ -71,4 +72,9 @@ uint8_t eeconfig_read_backlight(void); void eeconfig_write_backlight(uint8_t val); #endif +#ifdef BREATHING_LED_ENABLE +uint8_t eeconfig_read_breathing_led(void); +void eeconfig_write_breathing_led(uint8_t val); +#endif + #endif