Backlight abstraction and other changes (#439)

* redoes matrix pins, abstracts backlight code for B5,6,7

* slimming down keyboard stuff, backlight breathing implemented

* don't call backlight init when no pin

* cleans up user/kb/quantum calls, keyboard files

* fix pvc atomic

* replaces CHANNEL with correct var in breathing

* removes .hexs, updates readmes, updates template

* cleans-up clueboards, readmes to lowercase

* updates readme

1 files changed, 1 insertions, 311 deletions

diff --git a/keyboards/atomic/atomic.c b/keyboards/atomic/atomic.c
index fa218a48f..6f393315e 100644
--- a/keyboards/atomic/atomic.c
+++ b/keyboards/atomic/atomic.c
@@ -1,26 +1,5 @@
 #include "atomic.h"
 
-__attribute__ ((weak))
-void matrix_init_user(void) {
-    // leave this function blank - it can be defined in a keymap file
-};
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-    // leave this function blank - it can be defined in a keymap file
-}
-
-__attribute__ ((weak))
-bool process_action_user(keyrecord_t *record) {
-    // leave this function blank - it can be defined in a keymap file
-    return true;
-}
-
-__attribute__ ((weak))
-void led_set_user(uint8_t usb_led) {
-    // leave this function blank - it can be defined in a keymap file
-}
-
 void matrix_init_kb(void) {
     // put your keyboard start-up code here
     // runs once when the firmware starts up
@@ -28,298 +7,9 @@ void matrix_init_kb(void) {
     MCUCR |= (1<<JTD);
     MCUCR |= (1<<JTD);
 
-#ifdef BACKLIGHT_ENABLE
-    backlight_init_ports();
-#endif
-
     // Turn status LED on
     DDRE |= (1<<6);
     PORTE |= (1<<6);
 
     matrix_init_user();
-}
-
-void matrix_scan_kb(void) {
-    // put your looping keyboard code here
-    // runs every cycle (a lot)
-
-    matrix_scan_user();
-}
-
-bool process_action_kb(keyrecord_t *record) {
-    // put your per-action keyboard code here
-    // runs for every action, just before processing by the firmware
-
-    return process_action_user(record);
-}
-
-void led_set_kb(uint8_t usb_led) {
-    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
-
-    led_set_user(usb_led);
-}
-
-#ifdef BACKLIGHT_ENABLE
-#define CHANNEL OCR1C
-#define BREATHING_NO_HALT  0
-#define BREATHING_HALT_OFF 1
-#define BREATHING_HALT_ON  2
-
-static uint8_t breath_intensity;
-static uint8_t breath_speed;
-static uint16_t breathing_index;
-static uint8_t breathing_halt;
-
-void backlight_init_ports()
-{
-
-    // Setup PB7 as output and output low.
-    DDRB |= (1<<7);
-    PORTB &= ~(1<<7);
-
-    // Use full 16-bit resolution.
-    ICR1 = 0xFFFF;
-
-    // I could write a wall of text here to explain... but TL;DW
-    // Go read the ATmega32u4 datasheet.
-    // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
-
-    // Pin PB7 = OCR1C (Timer 1, Channel C)
-    // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
-    // (i.e. start high, go low when counter matches.)
-    // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
-    // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
-
-    TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
-    TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
-
-    backlight_init();
-    breathing_defaults();
-}
-
-void backlight_set(uint8_t level)
-{
-    // Prevent backlight blink on lowest level
-    PORTB &= ~(_BV(PORTB7));
-
-    if ( level == 0 )
-    {
-        // Turn off PWM control on PB7, revert to output low.
-        TCCR1A &= ~(_BV(COM1C1));
-
-        // Set the brightness to 0
-        CHANNEL = 0x0;
-    }
-    else if ( level >= BACKLIGHT_LEVELS )
-    {
-        // Turn on PWM control of PB7
-        TCCR1A |= _BV(COM1C1);
-
-        // Set the brightness to max
-        CHANNEL = 0xFFFF;
-    }
-    else
-    {
-        // Turn on PWM control of PB7
-        TCCR1A |= _BV(COM1C1);
-
-        // Set the brightness
-        CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
-    }
-    breathing_intensity_default();
-}
-
-
-void breathing_enable(void)
-{
-    if (get_backlight_level() == 0)
-    {
-        breathing_index = 0;
-    }
-    else
-    {
-        // Set breathing_index to be at the midpoint (brightest point)
-        breathing_index = 0x20 << breath_speed;
-    }
-
-    breathing_halt = BREATHING_NO_HALT;
-
-    // Enable breathing interrupt
-    TIMSK1 |= _BV(OCIE1A);
-}
-
-void breathing_pulse(void)
-{
-    if (get_backlight_level() == 0)
-    {
-        breathing_index = 0;
-    }
-    else
-    {
-        // Set breathing_index to be at the midpoint + 1 (brightest point)
-        breathing_index = 0x21 << breath_speed;
-    }
-
-    breathing_halt = BREATHING_HALT_ON;
-
-    // Enable breathing interrupt
-    TIMSK1 |= _BV(OCIE1A);
-}
-
-void breathing_disable(void)
-{
-    // Disable breathing interrupt
-    TIMSK1 &= ~_BV(OCIE1A);
-    backlight_set(get_backlight_level());
-}
-
-void breathing_self_disable(void)
-{
-    if (get_backlight_level() == 0)
-    {
-        breathing_halt = BREATHING_HALT_OFF;
-    }
-    else
-    {
-        breathing_halt = BREATHING_HALT_ON;
-    }
-
-    //backlight_set(get_backlight_level());
-}
-
-void breathing_toggle(void)
-{
-    if (!is_breathing())
-    {
-        if (get_backlight_level() == 0)
-        {
-            breathing_index = 0;
-        }
-        else
-        {
-            // Set breathing_index to be at the midpoint + 1 (brightest point)
-            breathing_index = 0x21 << breath_speed;
-        }
-
-        breathing_halt = BREATHING_NO_HALT;
-    }
-
-    // Toggle breathing interrupt
-    TIMSK1 ^= _BV(OCIE1A);
-
-    // Restore backlight level
-    if (!is_breathing())
-    {
-        backlight_set(get_backlight_level());
-    }
-}
-
-bool is_breathing(void)
-{
-    return (TIMSK1 && _BV(OCIE1A));
-}
-
-void breathing_intensity_default(void)
-{
-    //breath_intensity = (uint8_t)((uint16_t)100 * (uint16_t)get_backlight_level() / (uint16_t)BACKLIGHT_LEVELS);
-    breath_intensity = ((BACKLIGHT_LEVELS - get_backlight_level()) * ((BACKLIGHT_LEVELS + 1) / 2));
-}
-
-void breathing_intensity_set(uint8_t value)
-{
-    breath_intensity = value;
-}
-
-void breathing_speed_default(void)
-{
-    breath_speed = 4;
-}
-
-void breathing_speed_set(uint8_t value)
-{
-    bool is_breathing_now = is_breathing();
-    uint8_t old_breath_speed = breath_speed;
-
-    if (is_breathing_now)
-    {
-        // Disable breathing interrupt
-        TIMSK1 &= ~_BV(OCIE1A);
-    }
-
-    breath_speed = value;
-
-    if (is_breathing_now)
-    {
-        // Adjust index to account for new speed
-        breathing_index = (( (uint8_t)( (breathing_index) >> old_breath_speed ) ) & 0x3F) << breath_speed;
-
-        // Enable breathing interrupt
-        TIMSK1 |= _BV(OCIE1A);
-    }
-
-}
-
-void breathing_speed_inc(uint8_t value)
-{
-    if ((uint16_t)(breath_speed - value) > 10 )
-    {
-        breathing_speed_set(0);
-    }
-    else
-    {
-        breathing_speed_set(breath_speed - value);
-    }
-}
-
-void breathing_speed_dec(uint8_t value)
-{
-    if ((uint16_t)(breath_speed + value) > 10 )
-    {
-        breathing_speed_set(10);
-    }
-    else
-    {
-        breathing_speed_set(breath_speed + value);
-    }
-}
-
-void breathing_defaults(void)
-{
-    breathing_intensity_default();
-    breathing_speed_default();
-    breathing_halt = BREATHING_NO_HALT;
-}
-
-/* Breathing Sleep 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(TIMER1_COMPA_vect)
-{
-    // CHANNEL = (pgm_read_byte(&breathing_table[ ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F ] )) * breath_intensity;
-
-
-    uint8_t local_index = ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F;
-
-    if (((breathing_halt == BREATHING_HALT_ON) && (local_index == 0x20)) || ((breathing_halt == BREATHING_HALT_OFF) && (local_index == 0x3F)))
-    {
-        // Disable breathing interrupt
-        TIMSK1 &= ~_BV(OCIE1A);
-    }
-
-    CHANNEL = (uint16_t)(((uint16_t)pgm_read_byte(&breathing_table[local_index]) * 257)) >> breath_intensity;
-
-}
-
-
-
-#endif
\ No newline at end of file
+}
\ No newline at end of file