bthid_session_p
session_open(bthid_server_p srv, hid_device_p const d)
{
bthid_session_p s;
assert(srv != NULL);
assert(d != NULL);
if ((s = (bthid_session_p) malloc(sizeof(*s))) == NULL)
return (NULL);
s->srv = srv;
memcpy(&s->bdaddr, &d->bdaddr, sizeof(s->bdaddr));
s->ctrl = -1;
s->intr = -1;
if (d->keyboard) {
/* Open /dev/vkbdctl */
s->vkbd = open("/dev/vkbdctl", O_RDWR);
if (s->vkbd < 0) {
syslog(LOG_ERR, "Could not open /dev/vkbdctl " \
"for %s. %s (%d)", bt_ntoa(&s->bdaddr, NULL),
strerror(errno), errno);
free(s);
return (NULL);
}
} else
s->vkbd = -1;
s->state = CLOSED;
s->keys1 = bit_alloc(kbd_maxkey());
if (s->keys1 == NULL) {
free(s);
return (NULL);
}
s->keys2 = bit_alloc(kbd_maxkey());
if (s->keys2 == NULL) {
free(s->keys1);
free(s);
return (NULL);
}
LIST_INSERT_HEAD(&srv->sessions, s, next);
return (s);
}
int32_t
hid_interrupt(bthid_session_p s, uint8_t *data, int32_t len)
{
hid_device_p hid_device;
hid_data_t d;
hid_item_t h;
int32_t report_id, usage, page, val,
mouse_x, mouse_y, mouse_z, mouse_butt,
mevents, kevents, i;
assert(s != NULL);
assert(s->srv != NULL);
assert(data != NULL);
if (len < 3) {
syslog(LOG_ERR, "Got short message (%d bytes) on Interrupt " \
"channel from %s", len, bt_ntoa(&s->bdaddr, NULL));
return (-1);
}
if (data[0] != 0xa1) {
syslog(LOG_ERR, "Got unexpected message 0x%x on " \
"Interrupt channel from %s",
data[0], bt_ntoa(&s->bdaddr, NULL));
return (-1);
}
report_id = data[1];
data ++;
len --;
hid_device = get_hid_device(&s->bdaddr);
assert(hid_device != NULL);
mouse_x = mouse_y = mouse_z = mouse_butt = mevents = kevents = 0;
for (d = hid_start_parse(hid_device->desc, 1 << hid_input, -1);
hid_get_item(d, &h) > 0; ) {
if ((h.flags & HIO_CONST) || (h.report_ID != report_id) ||
(h.kind != hid_input))
continue;
page = HID_PAGE(h.usage);
val = hid_get_data(data, &h);
/*
* When the input field is an array and the usage is specified
* with a range instead of an ID, we have to derive the actual
* usage by using the item value as an index in the usage range
* list.
*/
if ((h.flags & HIO_VARIABLE)) {
usage = HID_USAGE(h.usage);
} else {
const uint32_t usage_offset = val - h.logical_minimum;
usage = HID_USAGE(h.usage_minimum + usage_offset);
}
switch (page) {
case HUP_GENERIC_DESKTOP:
switch (usage) {
case HUG_X:
mouse_x = val;
mevents ++;
break;
case HUG_Y:
mouse_y = val;
mevents ++;
break;
case HUG_WHEEL:
mouse_z = -val;
mevents ++;
break;
case HUG_SYSTEM_SLEEP:
if (val)
syslog(LOG_NOTICE, "Sleep button pressed");
break;
}
break;
case HUP_KEYBOARD:
kevents ++;
if (h.flags & HIO_VARIABLE) {
if (val && usage < kbd_maxkey())
bit_set(s->keys1, usage);
} else {
if (val && val < kbd_maxkey())
bit_set(s->keys1, val);
for (i = 1; i < h.report_count; i++) {
h.pos += h.report_size;
val = hid_get_data(data, &h);
if (val && val < kbd_maxkey())
bit_set(s->keys1, val);
}
}
break;
case HUP_BUTTON:
if (usage != 0) {
if (usage == 2)
usage = 3;
else if (usage == 3)
usage = 2;
mouse_butt |= (val << (usage - 1));
mevents ++;
}
break;
case HUP_CONSUMER:
if (!val)
break;
switch (usage) {
case HUC_AC_PAN:
/* Horizontal scroll */
if (val < 0)
mouse_butt |= (1 << 5);
else
mouse_butt |= (1 << 6);
mevents ++;
val = 0;
break;
case 0xb5: /* Scan Next Track */
val = 0x19;
break;
case 0xb6: /* Scan Previous Track */
val = 0x10;
break;
case 0xb7: /* Stop */
val = 0x24;
break;
case 0xcd: /* Play/Pause */
val = 0x22;
break;
case 0xe2: /* Mute */
val = 0x20;
break;
case 0xe9: /* Volume Up */
val = 0x30;
break;
case 0xea: /* Volume Down */
val = 0x2E;
break;
case 0x183: /* Media Select */
val = 0x6D;
break;
case 0x018a: /* Mail */
val = 0x6C;
break;
case 0x192: /* Calculator */
val = 0x21;
break;
case 0x194: /* My Computer */
val = 0x6B;
break;
case 0x221: /* WWW Search */
val = 0x65;
break;
case 0x223: /* WWW Home */
val = 0x32;
break;
case 0x224: /* WWW Back */
val = 0x6A;
break;
case 0x225: /* WWW Forward */
val = 0x69;
break;
case 0x226: /* WWW Stop */
val = 0x68;
break;
case 0x227: /* WWW Refresh */
val = 0x67;
break;
case 0x22a: /* WWW Favorites */
val = 0x66;
break;
default:
val = 0;
break;
}
/* XXX FIXME - UGLY HACK */
if (val != 0) {
if (hid_device->keyboard) {
int32_t buf[4] = { 0xe0, val,
0xe0, val|0x80 };
assert(s->vkbd != -1);
write(s->vkbd, buf, sizeof(buf));
} else
syslog(LOG_ERR, "Keyboard events " \
"received from non-keyboard " \
"device %s. Please report",
bt_ntoa(&s->bdaddr, NULL));
}
break;
case HUP_MICROSOFT:
switch (usage) {
case 0xfe01:
if (!hid_device->battery_power)
break;
switch (val) {
case 1:
syslog(LOG_INFO, "Battery is OK on %s",
bt_ntoa(&s->bdaddr, NULL));
break;
case 2:
syslog(LOG_NOTICE, "Low battery on %s",
bt_ntoa(&s->bdaddr, NULL));
break;
case 3:
syslog(LOG_WARNING, "Very low battery "\
"on %s",
bt_ntoa(&s->bdaddr, NULL));
break;
}
break;
}
break;
}
}
hid_end_parse(d);
/*
* XXX FIXME Feed keyboard events into kernel.
* The code below works, bit host also needs to track
* and handle repeat.
*
* Key repeat currently works in X, but not in console.
*/
if (kevents > 0) {
if (hid_device->keyboard) {
assert(s->vkbd != -1);
kbd_process_keys(s);
} else
syslog(LOG_ERR, "Keyboard events received from " \
"non-keyboard device %s. Please report",
bt_ntoa(&s->bdaddr, NULL));
}
/*
* XXX FIXME Feed mouse events into kernel.
* The code block below works, but it is not good enough.
* Need to track double-clicks etc.
*
* Double click currently works in X, but not in console.
*/
if (mevents > 0) {
struct mouse_info mi;
mi.operation = MOUSE_ACTION;
mi.u.data.x = mouse_x;
mi.u.data.y = mouse_y;
mi.u.data.z = mouse_z;
mi.u.data.buttons = mouse_butt;
if (ioctl(s->srv->cons, CONS_MOUSECTL, &mi) < 0)
syslog(LOG_ERR, "Could not process mouse events from " \
"%s. %s (%d)", bt_ntoa(&s->bdaddr, NULL),
strerror(errno), errno);
}
return (0);
}
