2 Bluefruit Protocol for TMK firmware
3 Author: Benjamin Gould, 2013
4 Based on code Copyright 2011 Jun Wako <wakojun@gmail.com>
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include <avr/interrupt.h>
23 #include <avr/sleep.h>
24 #include <util/delay.h>
25 #include "../serial.h"
34 #include "bluefruit.h"
37 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
39 #define HOST_DRIVER_NOT_SET 0
40 #define BLUEFRUIT_HOST_DRIVER 1
41 #define PJRC_HOST_DRIVER 2
55 print_set_sendchar(sendchar);
59 // while (!usb_configured()) /* wait */
63 dprintf("Initializing keyboard...\n");
66 // This implementation is pretty simplistic... if the USB connection
67 // is not configured, choose the Bluefruit, otherwise use USB
68 // Definitely would prefer to have this driven by an input pin and make
69 // it switch dynamically - BCG
70 // if (!usb_configured()) {
72 // // Send power to Bluefruit... Adafruit says it takes 27 mA, I think
73 // // the pins should provide 40 mA, but just in case I switch the
74 // // Bluefruit using a transistor - BCG
78 dprintf("Setting host driver to bluefruit...\n");
79 host_set_driver(bluefruit_driver());
81 dprintf("Initializing serial...\n");
84 // char swpa[] = "+++\r\n";
85 // for (int i = 0; i < 5; i++) {
86 // serial_send(swpa[i]);
89 // char ble_enable[] = "AT+BLEKEYBOARDEN=1\r\n";
90 // for (int i = 0; i < 20; i++) {
91 // serial_send(ble_enable[i]);
94 // char reset[] = "ATZ\r\n";
95 // for (int i = 0; i < 5; i++) {
96 // serial_send(reset[i]);
99 // for (int i = 0; i < 5; i++) {
100 // serial_send(swpa[i]);
103 // wait an extra second for the PC's operating system
104 // to load drivers and do whatever it does to actually
105 // be ready for input
107 // PORTD = ~_BV(PD5);
108 dprintf("Starting main loop");
115 // // I'm not smart enough to get this done with LUFA - BCG
116 // dprintf("Setting host driver to PJRC...\n");
117 // host_set_driver(pjrc_driver());
118 // #ifdef SLEEP_LED_ENABLE
121 // // wait an extra second for the PC's operating system
122 // // to load drivers and do whatever it does to actually
123 // // be ready for input
125 // PORTB = ~_BV(PB0);
126 // dprintf("Starting main loop");
129 // suspend_power_down();
130 // if (remote_wakeup && suspend_wakeup_condition()) {
131 // usb_remote_wakeup();