Archipelago » qemu

/*

 * Convenience functions for bluetooth.

 *

 * Copyright (C) 2008 Andrzej Zaborowski  <balrog@zabor.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 or

 * (at your option) version 3 of the License.

 *

 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#include "qemu-common.h"

#include "net.h"

#include "bt.h"

/* Slave implementations can ignore this */

static void bt_dummy_lmp_mode_change(struct bt_link_s *link)

{

}

/* Slaves should never receive these PDUs */

static void bt_dummy_lmp_connection_complete(struct bt_link_s *link)

{

    if (link->slave->reject_reason)

        fprintf(stderr, "%s: stray LMP_not_accepted received, fixme\n",

                        __FUNCTION__);

    else

        fprintf(stderr, "%s: stray LMP_accepted received, fixme\n",

                        __FUNCTION__);

    exit(-1);

}

static void bt_dummy_lmp_disconnect_master(struct bt_link_s *link)

{

    fprintf(stderr, "%s: stray LMP_detach received, fixme\n", __FUNCTION__);

    exit(-1);

}

static void bt_dummy_lmp_acl_resp(struct bt_link_s *link,

                const uint8_t *data, int start, int len)

{

    fprintf(stderr, "%s: stray ACL response PDU, fixme\n", __FUNCTION__);

    exit(-1);

}

/* Slaves that don't hold any additional per link state can use these */

static void bt_dummy_lmp_connection_request(struct bt_link_s *req)

{

    struct bt_link_s *link = qemu_mallocz(sizeof(struct bt_link_s));

    link->slave = req->slave;

    link->host = req->host;

    req->host->reject_reason = 0;

    req->host->lmp_connection_complete(link);

}

static void bt_dummy_lmp_disconnect_slave(struct bt_link_s *link)

{

    qemu_free(link);

}

static void bt_dummy_destroy(struct bt_device_s *device)

{

    bt_device_done(device);

    qemu_free(device);

}

static int bt_dev_idx = 0;

void bt_device_init(struct bt_device_s *dev, struct bt_scatternet_s *net)

{

    memset(dev, 0, sizeof(*dev));

    dev->inquiry_scan = 1;

    dev->page_scan = 1;

    dev->bd_addr.b[0] = bt_dev_idx & 0xff;

    dev->bd_addr.b[1] = bt_dev_idx >> 8;

    dev->bd_addr.b[2] = 0xd0;

    dev->bd_addr.b[3] = 0xba;

    dev->bd_addr.b[4] = 0xbe;

    dev->bd_addr.b[5] = 0xba;

    bt_dev_idx ++;

    /* Simple slave-only devices need to implement only .lmp_acl_data */

    dev->lmp_connection_complete = bt_dummy_lmp_connection_complete;

    dev->lmp_disconnect_master = bt_dummy_lmp_disconnect_master;

    dev->lmp_acl_resp = bt_dummy_lmp_acl_resp;

    dev->lmp_mode_change = bt_dummy_lmp_mode_change;

    dev->lmp_connection_request = bt_dummy_lmp_connection_request;

    dev->lmp_disconnect_slave = bt_dummy_lmp_disconnect_slave;

    dev->handle_destroy = bt_dummy_destroy;

    dev->net = net;

    dev->next = net->slave;

    net->slave = dev;

}

void bt_device_done(struct bt_device_s *dev)

{

    struct bt_device_s **p = &dev->net->slave;

    while (*p && *p != dev)

        p = &(*p)->next;

    if (*p != dev) {

        fprintf(stderr, "%s: bad bt device \"%s\"\n", __FUNCTION__,

                        dev->lmp_name ?: "(null)");

        exit(-1);

    }

    *p = dev->next;

}