416 lines
9.0 KiB
C
416 lines
9.0 KiB
C
/*
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* hid.c
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*/
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/*-
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* Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: hid.c,v 1.5 2006/09/07 21:06:53 max Exp $
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* $FreeBSD$
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*/
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#include <sys/consio.h>
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#include <sys/mouse.h>
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#include <sys/queue.h>
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#include <assert.h>
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#define L2CAP_SOCKET_CHECKED
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#include <bluetooth.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbhid.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <syslog.h>
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#include <unistd.h>
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#include <usbhid.h>
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#include "bthid_config.h"
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#include "bthidd.h"
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#include "kbd.h"
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/*
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* Process data from control channel
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*/
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int32_t
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hid_control(bthid_session_p s, uint8_t *data, int32_t len)
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{
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assert(s != NULL);
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assert(data != NULL);
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assert(len > 0);
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switch (data[0] >> 4) {
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case 0: /* Handshake (response to command) */
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if (data[0] & 0xf)
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syslog(LOG_ERR, "Got handshake message with error " \
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"response 0x%x from %s",
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data[0], bt_ntoa(&s->bdaddr, NULL));
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break;
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case 1: /* HID Control */
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switch (data[0] & 0xf) {
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case 0: /* NOP */
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break;
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case 1: /* Hard reset */
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case 2: /* Soft reset */
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syslog(LOG_WARNING, "Device %s requested %s reset",
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bt_ntoa(&s->bdaddr, NULL),
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((data[0] & 0xf) == 1)? "hard" : "soft");
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break;
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case 3: /* Suspend */
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syslog(LOG_NOTICE, "Device %s requested Suspend",
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bt_ntoa(&s->bdaddr, NULL));
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break;
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case 4: /* Exit suspend */
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syslog(LOG_NOTICE, "Device %s requested Exit Suspend",
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bt_ntoa(&s->bdaddr, NULL));
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break;
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case 5: /* Virtual cable unplug */
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syslog(LOG_NOTICE, "Device %s unplugged virtual cable",
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bt_ntoa(&s->bdaddr, NULL));
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session_close(s);
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break;
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default:
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syslog(LOG_WARNING, "Device %s sent unknown " \
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"HID_Control message 0x%x",
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bt_ntoa(&s->bdaddr, NULL), data[0]);
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break;
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}
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break;
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default:
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syslog(LOG_WARNING, "Got unexpected message 0x%x on Control " \
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"channel from %s", data[0], bt_ntoa(&s->bdaddr, NULL));
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break;
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}
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return (0);
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}
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/*
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* Process data from the interrupt channel
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*/
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int32_t
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hid_interrupt(bthid_session_p s, uint8_t *data, int32_t len)
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{
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hid_device_p hid_device;
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hid_data_t d;
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hid_item_t h;
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int32_t report_id, usage, page, val,
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mouse_x, mouse_y, mouse_z, mouse_butt,
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mevents, kevents, i;
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assert(s != NULL);
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assert(s->srv != NULL);
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assert(data != NULL);
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if (len < 3) {
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syslog(LOG_ERR, "Got short message (%d bytes) on Interrupt " \
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"channel from %s", len, bt_ntoa(&s->bdaddr, NULL));
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return (-1);
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}
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if (data[0] != 0xa1) {
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syslog(LOG_ERR, "Got unexpected message 0x%x on " \
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"Interrupt channel from %s",
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data[0], bt_ntoa(&s->bdaddr, NULL));
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return (-1);
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}
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report_id = data[1];
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data ++;
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len --;
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hid_device = get_hid_device(&s->bdaddr);
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assert(hid_device != NULL);
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mouse_x = mouse_y = mouse_z = mouse_butt = mevents = kevents = 0;
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for (d = hid_start_parse(hid_device->desc, 1 << hid_input, -1);
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hid_get_item(d, &h) > 0; ) {
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if ((h.flags & HIO_CONST) || (h.report_ID != report_id) ||
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(h.kind != hid_input))
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continue;
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page = HID_PAGE(h.usage);
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val = hid_get_data(data, &h);
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/*
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* When the input field is an array and the usage is specified
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* with a range instead of an ID, we have to derive the actual
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* usage by using the item value as an index in the usage range
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* list.
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*/
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if ((h.flags & HIO_VARIABLE)) {
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usage = HID_USAGE(h.usage);
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} else {
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const uint32_t usage_offset = val - h.logical_minimum;
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usage = HID_USAGE(h.usage_minimum + usage_offset);
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}
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switch (page) {
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case HUP_GENERIC_DESKTOP:
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switch (usage) {
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case HUG_X:
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mouse_x = val;
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mevents ++;
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break;
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case HUG_Y:
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mouse_y = val;
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mevents ++;
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break;
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case HUG_WHEEL:
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mouse_z = -val;
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mevents ++;
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break;
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case HUG_SYSTEM_SLEEP:
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if (val)
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syslog(LOG_NOTICE, "Sleep button pressed");
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break;
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}
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break;
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case HUP_KEYBOARD:
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kevents ++;
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if (h.flags & HIO_VARIABLE) {
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if (val && usage < kbd_maxkey())
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bit_set(s->keys1, usage);
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} else {
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if (val && val < kbd_maxkey())
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bit_set(s->keys1, val);
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for (i = 1; i < h.report_count; i++) {
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h.pos += h.report_size;
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val = hid_get_data(data, &h);
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if (val && val < kbd_maxkey())
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bit_set(s->keys1, val);
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}
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}
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break;
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case HUP_BUTTON:
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if (usage != 0) {
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if (usage == 2)
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usage = 3;
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else if (usage == 3)
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usage = 2;
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mouse_butt |= (val << (usage - 1));
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mevents ++;
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}
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break;
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case HUP_CONSUMER:
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if (!val)
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break;
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switch (usage) {
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case HUC_AC_PAN:
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/* Horizontal scroll */
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if (val < 0)
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mouse_butt |= (1 << 5);
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else
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mouse_butt |= (1 << 6);
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mevents ++;
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val = 0;
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break;
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case 0xb5: /* Scan Next Track */
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val = 0x19;
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break;
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case 0xb6: /* Scan Previous Track */
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val = 0x10;
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break;
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case 0xb7: /* Stop */
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val = 0x24;
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break;
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case 0xcd: /* Play/Pause */
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val = 0x22;
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break;
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case 0xe2: /* Mute */
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val = 0x20;
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break;
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case 0xe9: /* Volume Up */
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val = 0x30;
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break;
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case 0xea: /* Volume Down */
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val = 0x2E;
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break;
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case 0x183: /* Media Select */
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val = 0x6D;
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break;
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case 0x018a: /* Mail */
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val = 0x6C;
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break;
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case 0x192: /* Calculator */
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val = 0x21;
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break;
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case 0x194: /* My Computer */
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val = 0x6B;
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break;
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case 0x221: /* WWW Search */
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val = 0x65;
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break;
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case 0x223: /* WWW Home */
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val = 0x32;
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break;
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case 0x224: /* WWW Back */
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val = 0x6A;
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break;
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case 0x225: /* WWW Forward */
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val = 0x69;
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break;
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case 0x226: /* WWW Stop */
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val = 0x68;
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break;
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case 0x227: /* WWW Refresh */
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val = 0x67;
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break;
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case 0x22a: /* WWW Favorites */
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val = 0x66;
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break;
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default:
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val = 0;
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break;
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}
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/* XXX FIXME - UGLY HACK */
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if (val != 0) {
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if (hid_device->keyboard) {
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int32_t buf[4] = { 0xe0, val,
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0xe0, val|0x80 };
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assert(s->vkbd != -1);
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write(s->vkbd, buf, sizeof(buf));
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} else
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syslog(LOG_ERR, "Keyboard events " \
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"received from non-keyboard " \
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"device %s. Please report",
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bt_ntoa(&s->bdaddr, NULL));
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}
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break;
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case HUP_MICROSOFT:
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switch (usage) {
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case 0xfe01:
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if (!hid_device->battery_power)
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break;
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switch (val) {
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case 1:
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syslog(LOG_INFO, "Battery is OK on %s",
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bt_ntoa(&s->bdaddr, NULL));
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break;
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case 2:
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syslog(LOG_NOTICE, "Low battery on %s",
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bt_ntoa(&s->bdaddr, NULL));
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break;
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case 3:
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syslog(LOG_WARNING, "Very low battery "\
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"on %s",
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bt_ntoa(&s->bdaddr, NULL));
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break;
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}
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break;
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}
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break;
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}
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}
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hid_end_parse(d);
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/*
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* XXX FIXME Feed keyboard events into kernel.
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* The code below works, bit host also needs to track
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* and handle repeat.
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*
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* Key repeat currently works in X, but not in console.
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*/
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if (kevents > 0) {
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if (hid_device->keyboard) {
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assert(s->vkbd != -1);
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kbd_process_keys(s);
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} else
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syslog(LOG_ERR, "Keyboard events received from " \
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"non-keyboard device %s. Please report",
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bt_ntoa(&s->bdaddr, NULL));
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}
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/*
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* XXX FIXME Feed mouse events into kernel.
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* The code block below works, but it is not good enough.
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* Need to track double-clicks etc.
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*
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* Double click currently works in X, but not in console.
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*/
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if (mevents > 0) {
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struct mouse_info mi;
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mi.operation = MOUSE_ACTION;
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mi.u.data.x = mouse_x;
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mi.u.data.y = mouse_y;
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mi.u.data.z = mouse_z;
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mi.u.data.buttons = mouse_butt;
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if (ioctl(s->srv->cons, CONS_MOUSECTL, &mi) < 0)
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syslog(LOG_ERR, "Could not process mouse events from " \
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"%s. %s (%d)", bt_ntoa(&s->bdaddr, NULL),
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strerror(errno), errno);
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}
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return (0);
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}
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