Add support for key backlighting to bfake

If BACKLIGHT_ENABLE is set to `yes` in `rules.mk`, then the user
can use the `BL_*` keycodes to adjust the backlight. At the moment,
only on/off is supported.

keyboards/bfake/bfake.c

@@ -16,7 +16,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "bfake.h"
+#ifdef BACKLIGHT_ENABLE
+#include "backlight.h"
+#endif
+#ifdef RGBLIGHT_ENABLE
 #include "rgblight.h"
+#endif
 
 #include <avr/pgmspace.h>
 
@@ -24,6 +29,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "i2c.h"
 #include "quantum.h"
 
+#ifdef RGBLIGHT_ENABLE
 extern rgblight_config_t rgblight_config;
 
 void rgblight_set(void) {
@@ -38,8 +44,23 @@ void rgblight_set(void) {
     i2c_init();
     i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
 }
+#endif
 
 __attribute__ ((weak))
 void matrix_scan_user(void) {
-    rgblight_task();
+}
+
+void backlight_init_ports(void) {
+	DDRD |= (1<<0 | 1<<1 | 1<<4 | 1<<6);
+	PORTD &= ~(1<<0 | 1<<1 | 1<<4 | 1<<6);
+}
+
+void backlight_set(uint8_t level) {
+	if (level == 0) {
+		// Turn out the lights
+		PORTD &= ~(1<<0 | 1<<1 | 1<<4 | 1<<6);
+	} else {
+		// Turn on the lights
+		PORTD |= (1<<0 | 1<<1 | 1<<4 | 1<<6);
+	}
 }

keyboards/bfake/config.h

@@ -37,7 +37,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DIODE_DIRECTION COL2ROW
 #define DEBOUNCING_DELAY 5
 
-
+#define NO_BACKLIGHT_CLOCK
+#define BACKLIGHT_LEVELS 1
 #define RGBLIGHT_ANIMATIONS
 
 #define NO_UART 1

keyboards/bfake/rules.mk

@@ -37,7 +37,7 @@ EXTRAKEY_ENABLE = yes
 CONSOLE_ENABLE = yes
 COMMAND_ENABLE = yes
 BACKLIGHT_ENABLE = no
-RGBLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = no
 RGBLIGHT_CUSTOM_DRIVER = yes
 
 OPT_DEFS = -DDEBUG_LEVEL=0
@@ -47,4 +47,4 @@ CUSTOM_MATRIX = yes
 SRC = matrix.c i2c.c
 
 # programming options
-PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex
+PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex