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+/*
+Bluefruit Protocol for TMK firmware
+Author: Benjamin Gould, 2013
+Based on code Copyright 2011 Jun Wako <wakojun@gmail.com>
+
+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 <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdint.h>
+#include <avr/interrupt.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+#include <util/delay.h>
+#include "serial.h"
+#include "keyboard.h"
+#include "usb.h"
+#include "host.h"
+#include "timer.h"
+#include "print.h"
+#include "debug.h"
+#include "sendchar.h"
+#include "suspend.h"
+#include "bluefruit.h"
+#include "pjrc.h"
+
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+
+#define HOST_DRIVER_NOT_SET 0
+#define BLUEFRUIT_HOST_DRIVER 1
+#define PJRC_HOST_DRIVER 2
+
+int main(void)
+{
+
+ CPU_PRESCALE(0);
+
+ DDRD = _BV(PD5);
+ DDRB = _BV(PB0);
+
+ PORTD = _BV(PD5);
+ PORTB = _BV(PB0);
+
+ print_set_sendchar(sendchar);
+
+ usb_init();
+ _delay_ms(2000);
+ // while (!usb_configured()) /* wait */
+
+ dprintf("Initializing keyboard...\n");
+ keyboard_init();
+
+ // This implementation is pretty simplistic... if the USB connection
+ // is not configured, choose the Bluefruit, otherwise use USB
+ // Definitely would prefer to have this driven by an input pin and make
+ // it switch dynamically - BCG
+ if (!usb_configured()) {
+
+ // Send power to Bluefruit... Adafruit says it takes 27 mA, I think
+ // the pins should provide 40 mA, but just in case I switch the
+ // Bluefruit using a transistor - BCG
+ DDRB = _BV(PB6);
+ PORTB |= _BV(PB6);
+
+ dprintf("Setting host driver to bluefruit...\n");
+ host_set_driver(bluefruit_driver());
+
+ dprintf("Initializing serial...\n");
+ serial_init();
+
+ // wait an extra second for the PC's operating system
+ // to load drivers and do whatever it does to actually
+ // be ready for input
+ _delay_ms(1000);
+ PORTD = ~_BV(PD5);
+ dprintf("Starting main loop");
+ while (1) {
+ keyboard_task();
+ }
+
+ } else {
+
+ // I'm not smart enough to get this done with LUFA - BCG
+ dprintf("Setting host driver to PJRC...\n");
+ host_set_driver(pjrc_driver());
+#ifdef SLEEP_LED_ENABLE
+ sleep_led_init();
+#endif
+ // wait an extra second for the PC's operating system
+ // to load drivers and do whatever it does to actually
+ // be ready for input
+ _delay_ms(1000);
+ PORTB = ~_BV(PB0);
+ dprintf("Starting main loop");
+ while (1) {
+ while (suspend) {
+ suspend_power_down();
+ if (remote_wakeup && suspend_wakeup_condition()) {
+ usb_remote_wakeup();
+ }
+ }
+ keyboard_task();
+ }
+ }
+
+}