Re: [Bluez-devel] how to do inquiry with RSSI in bluetooth 1.2 devices?

[Albert Huang <ashuang@gmail.com>]

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> You should re-read the HCI part of the Bluetooth specification, because
> the OGF and OCF values are packed in a specific format. If the latest
> version of hcidump shows unknown then you should think about an error on
> your side, because I already added full Bluetooth 1.2 support.

Attached is a patch for bluez-libs.  Two functions are added.

int hci_read_inquiry_mode(int dd, uint8_t *mode, int to);
int hci_write_inquiry_mode(int dd, uint8_t mode, int to);

Thanks for all your help!

-albert

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Index: include/hci_lib.h
===================================================================
RCS file: /cvsroot/bluez/libs/include/hci_lib.h,v
retrieving revision 1.25
diff -u -r1.25 hci_lib.h
--- include/hci_lib.h	24 Apr 2004 12:09:55 -0000	1.25
+++ include/hci_lib.h	19 Oct 2004 23:49:21 -0000
@@ -88,6 +88,8 @@
 int hci_switch_role(int dd, bdaddr_t peer, int role, int to);
 int hci_park_mode(int dd, uint16_t handle, uint16_t max_interval, uint16_t min_interval, int to);
 int hci_exit_park_mode(int dd, uint16_t handle, int to);
+int hci_read_inquiry_mode(int dd, uint8_t *mode, int to);
+int hci_write_inquiry_mode(int dd, uint8_t mode, int to);
 
 int hci_for_each_dev(int flag, int(*func)(int s, int dev_id, long arg), long arg);
 int hci_get_route(bdaddr_t *bdaddr);
Index: src/hci.c
===================================================================
RCS file: /cvsroot/bluez/libs/src/hci.c,v
retrieving revision 1.44
diff -u -r1.44 hci.c
--- src/hci.c	6 Oct 2004 17:39:54 -0000	1.44
+++ src/hci.c	19 Oct 2004 23:49:22 -0000
@@ -1295,3 +1295,54 @@
 
 	return 0;
 }
+
+int hci_read_inquiry_mode(int dd, uint8_t *mode, int to)
+{
+    struct hci_request req;
+    read_inquiry_mode_rp rp;
+
+    req.ogf = OGF_HOST_CTL;
+    req.ocf = OCF_READ_INQUIRY_MODE;
+    req.event = EVT_CMD_COMPLETE;
+    req.cparam = 0;
+    req.clen = 0;
+    req.rparam = &rp;
+    req.rlen = READ_INQUIRY_MODE_RP_SIZE;
+
+    if( hci_send_req( dd, &req, to ) < 0 )
+        return -1;
+
+    if (rp.status) {
+        errno = EIO;
+        return -1;
+    }
+
+    *mode = rp.mode;
+    return 0;
+}
+
+int hci_write_inquiry_mode(int dd, uint8_t mode, int to)
+{
+    write_inquiry_mode_cp wim_cp;
+    struct hci_request req;
+    write_inquiry_mode_rp rp;
+    wim_cp.mode = mode;
+
+    req.ogf = OGF_HOST_CTL;
+    req.ocf = OCF_WRITE_INQUIRY_MODE;
+    req.event = EVT_CMD_COMPLETE;
+    req.cparam = &wim_cp;
+    req.clen = WRITE_INQUIRY_MODE_CP_SIZE;
+    req.rparam = &rp;
+    req.rlen = EVT_CMD_COMPLETE_SIZE + WRITE_INQUIRY_MODE_RP_SIZE;
+
+    if( hci_send_req( dd, &req, to ) < 0 )
+        return -1;
+
+    if (rp.status) {
+        errno = EIO;
+        return -1;
+    }
+
+    return 0;
+}