[Bluetooth]: Implement RFCOMM remote port negotiation

This patch implements the remote port negotiation (RPN) of the RFCOMM
protocol for Bluetooth.

Signed-off-by: J. Suter <jsuter@hardwave.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 3 deletions

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 13669bad00b..3768823d5fd 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -80,9 +80,9 @@
 #define RFCOMM_RPN_STOP_15      1
 
 #define RFCOMM_RPN_PARITY_NONE  0x0
-#define RFCOMM_RPN_PARITY_ODD   0x4
-#define RFCOMM_RPN_PARITY_EVEN  0x5
-#define RFCOMM_RPN_PARITY_MARK  0x6
+#define RFCOMM_RPN_PARITY_ODD   0x1
+#define RFCOMM_RPN_PARITY_EVEN  0x3
+#define RFCOMM_RPN_PARITY_MARK  0x5
 #define RFCOMM_RPN_PARITY_SPACE 0x7
 
 #define RFCOMM_RPN_FLOW_NONE    0x00
@@ -223,6 +223,12 @@ struct rfcomm_dlc {
 #define RFCOMM_CFC_DISABLED 0
 #define RFCOMM_CFC_ENABLED  RFCOMM_MAX_CREDITS
 
+/* ---- RFCOMM SEND RPN ---- */
+int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
+                        u8 bit_rate, u8 data_bits, u8 stop_bits,
+                        u8 parity, u8 flow_ctrl_settings, 
+                        u8 xon_char, u8 xoff_char, u16 param_mask);
+
 /* ---- RFCOMM DLCs (channels) ---- */
 struct rfcomm_dlc *rfcomm_dlc_alloc(int prio);
 void rfcomm_dlc_free(struct rfcomm_dlc *d);