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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(WDTO_120MS);
if (remote_wakeup && suspend_wakeup_condition()) {
usb_remote_wakeup();
}
}
keyboard_task();
}
}
}
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