Use VHCI to allow the host os to participate in a qemu bluetooth "vlan".
This does the reverse of bt-host.c, proxying from guest to host. Appears to be more reliable. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5348 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
parent
47e699dc80
commit
ab2b6f507d
2
Makefile
2
Makefile
@ -81,7 +81,7 @@ OBJS+=scsi-generic.o
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OBJS+=usb.o usb-hub.o usb-linux.o usb-hid.o usb-msd.o usb-wacom.o
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OBJS+=usb.o usb-hub.o usb-linux.o usb-hid.o usb-msd.o usb-wacom.o
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OBJS+=usb-serial.o usb-net.o
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OBJS+=usb-serial.o usb-net.o
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OBJS+=sd.o ssi-sd.o
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OBJS+=sd.o ssi-sd.o
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OBJS+=bt.o bt-host.o bt-l2cap.o bt-sdp.o bt-hci.o bt-hid.o
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OBJS+=bt.o bt-host.o bt-vhci.o bt-l2cap.o bt-sdp.o bt-hci.o bt-hid.o
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ifdef CONFIG_BRLAPI
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ifdef CONFIG_BRLAPI
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OBJS+= baum.o
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OBJS+= baum.o
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172
bt-vhci.c
Normal file
172
bt-vhci.c
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@ -0,0 +1,172 @@
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/*
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* Support for host VHCIs inside qemu scatternets.
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*
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* Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "qemu-common.h"
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#include "qemu-char.h"
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#include "sysemu.h"
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#include "net.h"
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#include "hw/bt.h"
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#include <sys/uio.h>
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#define VHCI_DEV "/dev/vhci"
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#define VHCI_UDEV "/dev/hci_vhci"
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struct bt_vhci_s {
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int fd;
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struct HCIInfo *info;
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uint8_t hdr[4096];
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int len;
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};
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static void vhci_read(void *opaque)
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{
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struct bt_vhci_s *s = (struct bt_vhci_s *) opaque;
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uint8_t *pkt;
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int pktlen;
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/* Seems that we can't read only the header first and then the amount
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* of data indicated in the header because Linux will discard everything
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* that's not been read in one go. */
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s->len = read(s->fd, s->hdr, sizeof(s->hdr));
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if (s->len < 0) {
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fprintf(stderr, "qemu: error %i reading the PDU\n", errno);
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return;
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}
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pkt = s->hdr;
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while (s->len --)
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switch (*pkt ++) {
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case HCI_COMMAND_PKT:
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if (s->len < 3)
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goto bad_pkt;
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pktlen = MIN(pkt[2] + 3, s->len);
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s->info->cmd_send(s->info, pkt, pktlen);
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s->len -= pktlen;
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pkt += pktlen;
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break;
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case HCI_ACLDATA_PKT:
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if (s->len < 4)
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goto bad_pkt;
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pktlen = MIN(((pkt[3] << 8) | pkt[2]) + 4, s->len);
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s->info->acl_send(s->info, pkt, pktlen);
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s->len -= pktlen;
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pkt += pktlen;
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break;
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case HCI_SCODATA_PKT:
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if (s->len < 3)
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goto bad_pkt;
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pktlen = MIN(pkt[2] + 3, s->len);
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s->info->sco_send(s->info, pkt, pktlen);
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s->len -= pktlen;
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pkt += pktlen;
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break;
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default:
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bad_pkt:
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fprintf(stderr, "qemu: bad HCI packet type %02x\n", pkt[-1]);
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}
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}
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static void vhci_host_send(void *opaque,
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int type, const uint8_t *data, int len)
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{
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struct bt_vhci_s *s = (struct bt_vhci_s *) opaque;
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#if 0
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uint8_t pkt = type;
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struct iovec iv[2];
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iv[0].iov_base = &pkt;
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iv[0].iov_len = 1;
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iv[1].iov_base = (void *) data;
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iv[1].iov_len = len;
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while (writev(s->fd, iv, 2) < 0)
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if (errno != EAGAIN && errno != EINTR) {
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fprintf(stderr, "qemu: error %i writing bluetooth packet.\n",
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errno);
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return;
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}
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#else
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/* Apparently VHCI wants us to write everything in one chunk :-( */
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static uint8_t buf[4096];
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buf[0] = type;
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memcpy(buf + 1, data, len);
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while (write(s->fd, buf, len + 1) < 0)
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if (errno != EAGAIN && errno != EINTR) {
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fprintf(stderr, "qemu: error %i writing bluetooth packet.\n",
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errno);
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return;
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}
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#endif
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}
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static void vhci_out_hci_packet_event(void *opaque,
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const uint8_t *data, int len)
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{
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vhci_host_send(opaque, HCI_EVENT_PKT, data, len);
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}
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static void vhci_out_hci_packet_acl(void *opaque,
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const uint8_t *data, int len)
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{
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vhci_host_send(opaque, HCI_ACLDATA_PKT, data, len);
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}
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void bt_vhci_init(struct HCIInfo *info)
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{
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struct bt_vhci_s *s;
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int err[2];
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int fd;
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fd = open(VHCI_DEV, O_RDWR);
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err[0] = errno;
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if (fd < 0) {
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fd = open(VHCI_UDEV, O_RDWR);
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err[1] = errno;
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}
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if (fd < 0) {
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fprintf(stderr, "qemu: Can't open `%s': %s (%i)\n",
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VHCI_DEV, strerror(err[0]), err[0]);
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fprintf(stderr, "qemu: Can't open `%s': %s (%i)\n",
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VHCI_UDEV, strerror(err[1]), err[1]);
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exit(-1);
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}
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s = qemu_mallocz(sizeof(struct bt_vhci_s));
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s->fd = fd;
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s->info = info ?: qemu_next_hci();
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s->info->opaque = s;
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s->info->evt_recv = vhci_out_hci_packet_event;
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s->info->acl_recv = vhci_out_hci_packet_acl;
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qemu_set_fd_handler(s->fd, vhci_read, 0, s);
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}
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8
hw/bt.h
8
hw/bt.h
@ -115,6 +115,9 @@ struct HCIInfo *bt_new_hci(struct bt_scatternet_s *net);
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/* bt-host.c */
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/* bt-host.c */
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struct HCIInfo *bt_host_hci(const char *id);
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struct HCIInfo *bt_host_hci(const char *id);
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/* bt-vhci.c */
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void bt_vhci_init(struct HCIInfo *info);
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/* bt-hci-csr.c */
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/* bt-hci-csr.c */
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enum {
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enum {
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csrhci_pin_reset,
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csrhci_pin_reset,
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/* bt-sdp.c */
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/* bt-sdp.c */
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void bt_l2cap_sdp_init(struct bt_l2cap_device_s *dev);
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void bt_l2cap_sdp_init(struct bt_l2cap_device_s *dev);
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/* bt-hid.c */
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struct bt_device_s *bt_mouse_init(struct bt_scatternet_s *net);
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struct bt_device_s *bt_tablet_init(struct bt_scatternet_s *net);
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struct bt_device_s *bt_keyboard_init(struct bt_scatternet_s *net);
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/* Link Management Protocol layer defines */
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/* Link Management Protocol layer defines */
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#define LLID_ACLU_CONT 0x1
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#define LLID_ACLU_CONT 0x1
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Loading…
Reference in New Issue
Block a user