diff options
| -rw-r--r-- | tools/hcitool.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/tools/hcitool.c b/tools/hcitool.c index 68d4aa7a..5ac90657 100644 --- a/tools/hcitool.c +++ b/tools/hcitool.c @@ -817,6 +817,91 @@ static void cmd_dc(int dev_id, int argc, char **argv) free(cr); } +/* Read RSSI */ + +static struct option rssi_options[] = { + {"help", 0,0, 'h'}, + {0, 0, 0, 0} +}; + +static char *rssi_help = + "Usage:\n" + "\trssi <bdaddr>\n"; + +static void cmd_rssi(int dev_id, int argc, char **argv) +{ + struct hci_conn_info_req *cr; + struct hci_request rq; + read_rssi_rp rp; + bdaddr_t bdaddr; + int opt, dd; + + for_each_opt(opt, rssi_options, NULL) { + switch(opt) { + default: + printf(rssi_help); + return; + } + } + argc -= optind; + argv += optind; + + if (argc < 1) { + printf(rssi_help); + return; + } + + str2ba(argv[0], &bdaddr); + + if (dev_id < 0) { + dev_id = for_each_dev(HCI_UP, find_conn, (long) &bdaddr); + if (dev_id < 0) { + fprintf(stderr, "Not connected.\n"); + exit(1); + } + } + + dd = hci_open_dev(dev_id); + if (dd < 0) { + perror("HCI device open failed"); + exit(1); + } + + cr = malloc(sizeof(*cr) + sizeof(struct hci_conn_info)); + if (!cr) + return; + + bacpy(&cr->bdaddr, &bdaddr); + cr->type = ACL_LINK; + if (ioctl(dd, HCIGETCONNINFO, (unsigned long) cr) < 0) { + perror("Get connection info failed"); + exit(1); + } + + rq.ogf = OGF_STATUS_PARAM; + rq.ocf = OCF_READ_RSSI; + rq.cparam = &cr->conn_info->handle; + rq.clen = 2; + rq.rparam = &rp; + rq.rlen = READ_RSSI_RP_SIZE; + + if (hci_send_req(dd, &rq, 100) < 0) { + printf("Can't read RSSI hci%d. %s(%d)\n", + dd, strerror(errno), errno); + exit(1); + } + + if (rp.status) { + printf("Read RSSI on hci%d returned (error) status 0x%2.2X\n", + dd, rp.status); + exit(1); + } + printf( "\tRSSI return value: %d\n", rp.rssi); + + close(dd); + free(cr); +} + struct { char *cmd; void (*func)(int dev_id, int argc, char **argv); @@ -832,6 +917,7 @@ struct { { "con", cmd_con, "Display active connections" }, { "cc", cmd_cc, "Create connection to remote device" }, { "dc", cmd_dc, "Disconnect from remote device" }, + { "rssi", cmd_rssi, "Display connection RSSI" }, { NULL, NULL, 0} }; |