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

keyboards/preonic/config.h

@@ -37,6 +37,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_COL_PINS { F1, F0, B0, C7, F4, F5, F6, F7, D4, D6, B4, D7 }
 #define UNUSED_PINS
 
+#define BACKLIGHT_PIN B7
+
 /* COL2ROW or ROW2COL */
 #define DIODE_DIRECTION COL2ROW
 

keyboards/preonic/preonic.c

@@ -1,97 +1,10 @@
 #include "preonic.h"
 
-__attribute__ ((weak))
-void matrix_init_user(void) {
-
-};
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-
-};
-
-__attribute__ ((weak))
-bool process_action_user(keyrecord_t *record) {
-    return true;
-};
-
 void matrix_init_kb(void) {
-	#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) {
-	matrix_scan_user();
-};
-
-bool process_action_kb(keyrecord_t *record) {
-	return process_action_user(record);
-}
-
-#ifdef BACKLIGHT_ENABLE
-#define CHANNEL OCR1C
-
-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();
-}
-
-void backlight_set(uint8_t level)
-{
-    if ( level == 0 )
-    {
-        // Turn off PWM control on PB7, revert to output low.
-        TCCR1A &= ~(_BV(COM1C1));
-        CHANNEL = 0x0;
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
-    }
-    else if ( level == BACKLIGHT_LEVELS )
-    {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
-        // Turn on PWM control of PB7
-        TCCR1A |= _BV(COM1C1);
-        // Set the brightness
-        CHANNEL = 0xFFFF;
-    }
-    else
-    {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
-        // Turn on PWM control of PB7
-        TCCR1A |= _BV(COM1C1);
-        // Set the brightness
-        CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
-    }
-}
-
-#endif
+};

keyboards/preonic/preonic.h

@@ -33,9 +33,4 @@
 	{ k40, k41, k42, k43, k44, k45, k46, k47, k48, k49, k4a, k4b } \
 }
 
-void matrix_init_user(void);
-void matrix_scan_user(void);
-bool process_action_kb(keyrecord_t *record);
-void backlight_init_ports(void);
-
 #endif

keyboards/preonic/readme.md

@@ -4,7 +4,7 @@ DIY/Assembled compact ortholinear 50% keyboard by [Ortholinear Keyboards](http:/
 
 ## Quantum MK Firmware
 
-For the full Quantum feature list, see [the parent README.md](/README.md).
+For the full Quantum feature list, see [the parent readme.md](/readme.md).
 
 ## Building
 
@@ -16,7 +16,7 @@ Depending on which keymap you would like to use, you will have to compile slight
 To build with the default keymap, simply run `make`.
 
 ### Other Keymaps
-Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap, create a file in the keymaps folder named `<name>.c` and see keymap document (you can find in top README.md) and existent keymap files.
+Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap, create a file in the keymaps folder named `<name>.c` and see keymap document (you can find in top readme.md) and existent keymap files.
 
 To build the firmware binary hex file with a keymap just do `make` with `KEYMAP` option like:
 ```