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-rw-r--r--tools/hcitool.c86
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}
};