/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2003-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/poll.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>
#include <bluetooth/hidp.h>
#include "hidd.h"
#include "uinput.h"
#include <math.h>
#ifdef NEED_PPOLL
#include "ppoll.h"
#endif
static volatile sig_atomic_t __io_canceled = 0;
static void sig_hup(int sig)
{
}
static void sig_term(int sig)
{
__io_canceled = 1;
}
static int send_event(int fd, uint16_t type, uint16_t code, int32_t value)
{
struct uinput_event event;
if (fd <= fileno(stderr))
return -EINVAL;
memset(&event, 0, sizeof(event));
event.type = type;
event.code = code;
event.value = value;
return write(fd, &event, sizeof(event));
}
static int uinput_create(char *name, int keyboard, int mouse)
{
struct uinput_dev dev;
int fd, aux;
fd = open("/dev/uinput", O_RDWR);
if (fd < 0) {
fd = open("/dev/input/uinput", O_RDWR);
if (fd < 0) {
fd = open("/dev/misc/uinput", O_RDWR);
if (fd < 0) {
fprintf(stderr, "Can't open input device: %s (%d)\n",
strerror(errno), errno);
return -1;
}
}
}
memset(&dev, 0, sizeof(dev));
if (name)
strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE - 1);
dev.id.bustype = BUS_BLUETOOTH;
dev.id.vendor = 0x0000;
dev.id.product = 0x0000;
dev.id.version = 0x0000;
if (write(fd, &dev, sizeof(dev)) < 0) {
fprintf(stderr, "Can't write device information: %s (%d)\n",
strerror(errno), errno);
close(fd);
return -1;
}
if (mouse) {
ioctl(fd, UI_SET_EVBIT, EV_REL);
for (aux = REL_X; aux <= REL_MISC; aux++)
ioctl(fd, UI_SET_RELBIT, aux);
}
if (keyboard) {
ioctl(fd, UI_SET_EVBIT, EV_KEY);
ioctl(fd, UI_SET_EVBIT, EV_LED);
ioctl(fd, UI_SET_EVBIT, EV_REP);
for (aux = KEY_RESERVED; aux <= KEY_UNKNOWN; aux++)
ioctl(fd, UI_SET_KEYBIT, aux);
/*
*for (aux = LED_NUML; aux <= LED_MISC; aux++)
* ioctl(fd, UI_SET_LEDBIT, aux);
*/
}
if (mouse) {
ioctl(fd, UI_SET_EVBIT, EV_KEY);
for (aux = BTN_LEFT; aux <= BTN_BACK; aux++)
ioctl(fd, UI_SET_KEYBIT, aux);
}
ioctl(fd, UI_DEV_CREATE);
return fd;
}
static int rfcomm_connect(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel)
{
struct sockaddr_rc addr;
int sk;
sk = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
if (sk < 0) {
fprintf(stderr, "Can't create socket: %s (%d)\n",
strerror(errno), errno);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.rc_family = AF_BLUETOOTH;
bacpy(&addr.rc_bdaddr, src);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
fprintf(stderr, "Can't bind socket: %s (%d)\n",
strerror(errno), errno);
close(sk);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.rc_family = AF_BLUETOOTH;
bacpy(&addr.rc_bdaddr, dst);
addr.rc_channel = channel;
if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
fprintf(stderr, "Can't connect: %s (%d)\n",
strerror(errno), errno);
close(sk);
return -1;
}
return sk;
}
static void func(int fd)
{
}
static void back(int fd)
{
}
static void next(int fd)
{
}
static void button(int fd, unsigned int button, int is_press)
{
switch (button) {
case 1:
send_event(fd, EV_KEY, BTN_LEFT, is_press);
break;
case 3:
send_event(fd, EV_KEY, BTN_RIGHT, is_press);
break;
}
send_event(fd, EV_SYN, SYN_REPORT, 0);
}
static void move(int fd, unsigned int direction)
{
double angle;
int32_t x, y;
angle = (direction * 22.5) * 3.1415926 / 180;
x = (int) (sin(angle) * 8);
y = (int) (cos(angle) * -8);
send_event(fd, EV_REL, REL_X, x);
send_event(fd, EV_REL, REL_Y, y);
send_event(fd, EV_SYN, SYN_REPORT, 0);
}
static inline void epox_decode(int fd, unsigned char event)
{
switch (event) {
case 48:
func(fd); break;
case 55:
back(fd); break;
case 56:
next(fd); break;
case 53:
button(fd, 1, 1); break;
case 121:
button(fd, 1, 0); break;
case 113:
break;
case 54:
button(fd, 3, 1); break;
case 120:
button(fd, 3, 0); break;
case 112:
break;
case 51:
move(fd, 0); break;
case 97:
move(fd, 1); break;
case 65:
move(fd, 2); break;
case 98:
move(fd, 3); break;
case 50:
move(fd, 4); break;
case 99:
move(fd, 5); break;
case 67:
move(fd, 6); break;
case 101:
move(fd, 7); break;
case 52:
move(fd, 8); break;
case 100:
move(fd, 9); break;
case 66:
move(fd, 10); break;
case 102:
move(fd, 11); break;
case 49:
move(fd, 12); break;
case 103:
move(fd, 13); break;
case 57:
move(fd, 14); break;
case 104:
move(fd, 15); break;
case 69:
break;
default:
printf("Unknown event code %d\n", event);
break;
}
}
int epox_presenter(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel)
{
unsigned char buf[16];
struct sigaction sa;
struct pollfd p;
sigset_t sigs;
char addr[18];
int i, fd, sk, len;
sk = rfcomm_connect(src, dst, channel);
if (sk < 0)
return -1;
fd = uinput_create("Bluetooth Presenter", 0, 1);
if (fd < 0) {
close(sk);
return -1;
}
ba2str(dst, addr);
printf("Connected to %s on channel %d\n", addr, channel);
printf("Press CTRL-C for hangup\n");
memset(&sa, 0, sizeof(sa));
sa.sa_flags = SA_NOCLDSTOP;
sa.sa_handler = SIG_IGN;
sigaction(SIGCHLD, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
sa.sa_handler = sig_term;
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sa.sa_handler = sig_hup;
sigaction(SIGHUP, &sa, NULL);
sigfillset(&sigs);
sigdelset(&sigs, SIGCHLD);
sigdelset(&sigs, SIGPIPE);
sigdelset(&sigs, SIGTERM);
sigdelset(&sigs, SIGINT);
sigdelset(&sigs, SIGHUP);
p.fd = sk;
p.events = POLLIN | POLLERR | POLLHUP;
while (!__io_canceled) {
p.revents = 0;
if (ppoll(&p, 1, NULL, &sigs) < 1)
continue;
len = read(sk, buf, sizeof(buf));
if (len < 0)
break;
for (i = 0; i < len; i++)
epox_decode(fd, buf[i]);
}
printf("Disconnected\n");
ioctl(fd, UI_DEV_DESTROY);
close(fd);
close(sk);
return 0;
}
int headset_presenter(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel)
{
printf("Not implemented\n");
return -1;
}
/* The strange meta key close to Ctrl has been assigned to Esc,
Fn key to CtrlR and the left space to Alt*/
static unsigned char jthree_keycodes[63] = {
KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T,
KEY_A, KEY_S, KEY_D, KEY_F, KEY_G,
KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B,
KEY_LEFTALT, KEY_TAB, KEY_CAPSLOCK, KEY_ESC,
KEY_7, KEY_8, KEY_9, KEY_0, KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE,
KEY_Y, KEY_U, KEY_I, KEY_O, KEY_P, KEY_LEFTBRACE, KEY_RIGHTBRACE,
KEY_H, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON, KEY_APOSTROPHE, KEY_ENTER,
KEY_N, KEY_M, KEY_COMMA, KEY_DOT, KEY_SLASH, KEY_UP,
KEY_SPACE, KEY_COMPOSE, KEY_LEFT, KEY_DOWN, KEY_RIGHT,
KEY_LEFTCTRL, KEY_RIGHTSHIFT, KEY_LEFTSHIFT, KEY_DELETE, KEY_RIGHTCTRL, KEY_RIGHTALT,
};
static inline void jthree_decode(int fd, unsigned char event)
{
if (event > 63)
send_event(fd, EV_KEY, jthree_keycodes[event & 0x3f], 0);
else
send_event(fd, EV_KEY, jthree_keycodes[event - 1], 1);
}
int jthree_keyboard(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel)
{
unsigned char buf[16];
struct sigaction sa;
struct pollfd p;
sigset_t sigs;
char addr[18];
int i, fd, sk, len;
sk = rfcomm_connect(src, dst, channel);
if (sk < 0)
return -1;
fd = uinput_create("J-Three Keyboard", 1, 0);
if (fd < 0) {
close(sk);
return -1;
}
ba2str(dst, addr);
printf("Connected to %s on channel %d\n", addr, channel);
printf("Press CTRL-C for hangup\n");
memset(&sa, 0, sizeof(sa));
sa.sa_flags = SA_NOCLDSTOP;
sa.sa_handler = SIG_IGN;
sigaction(SIGCHLD, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
sa.sa_handler = sig_term;
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sa.sa_handler = sig_hup;
sigaction(SIGHUP, &sa, NULL);
sigfillset(&sigs);
sigdelset(&sigs, SIGCHLD);
sigdelset(&sigs, SIGPIPE);
sigdelset(&sigs, SIGTERM);
sigdelset(&sigs, SIGINT);
sigdelset(&sigs, SIGHUP);
p.fd = sk;
p.events = POLLIN | POLLERR | POLLHUP;
while (!__io_canceled) {
p.revents = 0;
if (ppoll(&p, 1, NULL, &sigs) < 1)
continue;
len = read(sk, buf, sizeof(buf));
if (len < 0)
break;
for (i = 0; i < len; i++)
jthree_decode(fd, buf[i]);
}
printf("Disconnected\n");
ioctl(fd, UI_DEV_DESTROY);
close(fd);
close(sk);
return 0;
}
static const int celluon_xlate_num[10] = {
KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9
};
static const int celluon_xlate_char[26] = {
KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T,
KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z
};
static int celluon_xlate(int c)
{
if (c >= '0' && c <= '9')
return celluon_xlate_num[c - '0'];
if (c >= 'A' && c <= 'Z')
return celluon_xlate_char[c - 'A'];
switch (c) {
case 0x08:
return KEY_BACKSPACE;
case 0x09:
return KEY_TAB;
case 0x0d:
return KEY_ENTER;
case 0x11:
return KEY_LEFTCTRL;
case 0x14:
return KEY_CAPSLOCK;
case 0x20:
return KEY_SPACE;
case 0x25:
return KEY_LEFT;
case 0x26:
return KEY_UP;
case 0x27:
return KEY_RIGHT;
case 0x28:
return KEY_DOWN;
case 0x2e:
return KEY_DELETE;
case 0x5b:
return KEY_MENU;
case 0xa1:
return KEY_RIGHTSHIFT;
case 0xa0:
return KEY_LEFTSHIFT;
case 0xba:
return KEY_SEMICOLON;
case 0xbd:
return KEY_MINUS;
case 0xbc:
return KEY_COMMA;
case 0xbb:
return KEY_EQUAL;
case 0xbe:
return KEY_DOT;
case 0xbf:
return KEY_SLASH;
case 0xc0:
return KEY_GRAVE;
case 0xdb:
return KEY_LEFTBRACE;
case 0xdc:
return KEY_BACKSLASH;
case 0xdd:
return KEY_RIGHTBRACE;
case 0xde:
return KEY_APOSTROPHE;
case 0xff03:
return KEY_HOMEPAGE;
case 0xff04:
return KEY_TIME;
case 0xff06:
return KEY_OPEN;
case 0xff07:
return KEY_LIST;
case 0xff08:
return KEY_MAIL;
case 0xff30:
return KEY_CALC;
case 0xff1a: /* Map FN to ALT */
return KEY_LEFTALT;
case 0xff2f:
return KEY_INFO;
default:
printf("Unknown key %x\n", c);
return c;
}
}
struct celluon_state {
int len; /* Expected length of current packet */
int count; /* Number of bytes received */
int action;
int key;
};
static void celluon_decode(int fd, struct celluon_state *s, uint8_t c)
{
if (s->count < 2 && c != 0xa5) {
/* Lost Sync */
s->count = 0;
return;
}
switch (s->count) {
case 0:
/* New packet - Reset state */
s->len = 30;
s->key = 0;
break;
case 1:
break;
case 6:
s->action = c;
break;
case 28:
s->key = c;
if (c == 0xff)
s->len = 31;
break;
case 29:
case 30:
if (s->count == s->len - 1) {
/* TODO: Verify checksum */
if (s->action < 2) {
send_event(fd, EV_KEY, celluon_xlate(s->key),
s->action);
}
s->count = -1;
} else {
s->key = (s->key << 8) | c;
}
break;
}
s->count++;
return;
}
int celluon_keyboard(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel)
{
unsigned char buf[16];
struct sigaction sa;
struct pollfd p;
sigset_t sigs;
char addr[18];
int i, fd, sk, len;
struct celluon_state s;
sk = rfcomm_connect(src, dst, channel);
if (sk < 0)
return -1;
fd = uinput_create("Celluon Keyboard", 1, 0);
if (fd < 0) {
close(sk);
return -1;
}
ba2str(dst, addr);
printf("Connected to %s on channel %d\n", addr, channel);
printf("Press CTRL-C for hangup\n");
memset(&sa, 0, sizeof(sa));
sa.sa_flags = SA_NOCLDSTOP;
sa.sa_handler = SIG_IGN;
sigaction(SIGCHLD, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
sa.sa_handler = sig_term;
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sa.sa_handler = sig_hup;
sigaction(SIGHUP, &sa, NULL);
sigfillset(&sigs);
sigdelset(&sigs, SIGCHLD);
sigdelset(&sigs, SIGPIPE);
sigdelset(&sigs, SIGTERM);
sigdelset(&sigs, SIGINT);
sigdelset(&sigs, SIGHUP);
p.fd = sk;
p.events = POLLIN | POLLERR | POLLHUP;
memset(&s, 0, sizeof(s));
while (!__io_canceled) {
p.revents = 0;
if (ppoll(&p, 1, NULL, &sigs) < 1)
continue;
len = read(sk, buf, sizeof(buf));
if (len < 0)
break;
for (i = 0; i < len; i++)
celluon_decode(fd, &s, buf[i]);
}
printf("Disconnected\n");
ioctl(fd, UI_DEV_DESTROY);
close(fd);
close(sk);
return 0;
}