diff options
Diffstat (limited to 'qemu/bt-vhci.c')
| -rw-r--r-- | qemu/bt-vhci.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/qemu/bt-vhci.c b/qemu/bt-vhci.c deleted file mode 100644 index 9d277c32b..000000000 --- a/qemu/bt-vhci.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * Support for host VHCIs inside qemu scatternets. - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "sysemu/bt.h" -#include "hw/bt.h" -#include "qemu/main-loop.h" - -#define VHCI_DEV "/dev/vhci" -#define VHCI_UDEV "/dev/hci_vhci" - -struct bt_vhci_s { - int fd; - struct HCIInfo *info; - - uint8_t hdr[4096]; - int len; -}; - -static void vhci_read(void *opaque) -{ - struct bt_vhci_s *s = (struct bt_vhci_s *) opaque; - uint8_t *pkt; - int pktlen; - - /* Seems that we can't read only the header first and then the amount - * of data indicated in the header because Linux will discard everything - * that's not been read in one go. */ - s->len = read(s->fd, s->hdr, sizeof(s->hdr)); - - if (s->len < 0) { - fprintf(stderr, "qemu: error %i reading the PDU\n", errno); - return; - } - - pkt = s->hdr; - while (s->len --) - switch (*pkt ++) { - case HCI_COMMAND_PKT: - if (s->len < 3) - goto bad_pkt; - - pktlen = MIN(pkt[2] + 3, s->len); - s->info->cmd_send(s->info, pkt, pktlen); - s->len -= pktlen; - pkt += pktlen; - break; - - case HCI_ACLDATA_PKT: - if (s->len < 4) - goto bad_pkt; - - pktlen = MIN(((pkt[3] << 8) | pkt[2]) + 4, s->len); - s->info->acl_send(s->info, pkt, pktlen); - s->len -= pktlen; - pkt += pktlen; - break; - - case HCI_SCODATA_PKT: - if (s->len < 3) - goto bad_pkt; - - pktlen = MIN(pkt[2] + 3, s->len); - s->info->sco_send(s->info, pkt, pktlen); - s->len -= pktlen; - pkt += pktlen; - break; - - default: - bad_pkt: - fprintf(stderr, "qemu: bad HCI packet type %02x\n", pkt[-1]); - } -} - -static void vhci_host_send(void *opaque, - int type, const uint8_t *data, int len) -{ - struct bt_vhci_s *s = (struct bt_vhci_s *) opaque; -#if 0 - uint8_t pkt = type; - struct iovec iv[2]; - - iv[0].iov_base = &pkt; - iv[0].iov_len = 1; - iv[1].iov_base = (void *) data; - iv[1].iov_len = len; - - while (writev(s->fd, iv, 2) < 0) - if (errno != EAGAIN && errno != EINTR) { - fprintf(stderr, "qemu: error %i writing bluetooth packet.\n", - errno); - return; - } -#else - /* Apparently VHCI wants us to write everything in one chunk :-( */ - static uint8_t buf[4096]; - - buf[0] = type; - memcpy(buf + 1, data, len); - - while (write(s->fd, buf, len + 1) < 0) - if (errno != EAGAIN && errno != EINTR) { - fprintf(stderr, "qemu: error %i writing bluetooth packet.\n", - errno); - return; - } -#endif -} - -static void vhci_out_hci_packet_event(void *opaque, - const uint8_t *data, int len) -{ - vhci_host_send(opaque, HCI_EVENT_PKT, data, len); -} - -static void vhci_out_hci_packet_acl(void *opaque, - const uint8_t *data, int len) -{ - vhci_host_send(opaque, HCI_ACLDATA_PKT, data, len); -} - -void bt_vhci_init(struct HCIInfo *info) -{ - struct bt_vhci_s *s; - int err[2]; - int fd; - - fd = open(VHCI_DEV, O_RDWR); - err[0] = errno; - if (fd < 0) { - fd = open(VHCI_UDEV, O_RDWR); - err[1] = errno; - } - - if (fd < 0) { - fprintf(stderr, "qemu: Can't open `%s': %s (%i)\n", - VHCI_DEV, strerror(err[0]), err[0]); - fprintf(stderr, "qemu: Can't open `%s': %s (%i)\n", - VHCI_UDEV, strerror(err[1]), err[1]); - exit(-1); - } - - s = g_malloc0(sizeof(struct bt_vhci_s)); - s->fd = fd; - s->info = info ?: qemu_next_hci(); - s->info->opaque = s; - s->info->evt_recv = vhci_out_hci_packet_event; - s->info->acl_recv = vhci_out_hci_packet_acl; - - qemu_set_fd_handler(s->fd, vhci_read, NULL, s); -} |