Phonet: Implement Pipe Controller to support Nokia Slim Modems

Phonet stack assumes the presence of Pipe Controller, either in Modem or
on Application Processing Engine user-space for the Pipe data.
Nokia Slim Modems like WG2.5 used in ST-Ericsson U8500 platform do not
implement Pipe controller in them.
This patch adds Pipe Controller implemenation to Phonet stack to support
Pipe data over Phonet stack for Nokia Slim Modems.

Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 0 deletions

diff --git a/include/net/phonet/pep.h b/include/net/phonet/pep.h
index 37f23dc05de8..def6cfa3f451 100644
--- a/include/net/phonet/pep.h
+++ b/include/net/phonet/pep.h
@@ -45,6 +45,10 @@ struct pep_sock {
         u8                      tx_fc;  /* TX flow control */
         u8                      init_enable;    /* auto-enable at creation */
         u8                      aligned;
+#ifdef CONFIG_PHONET_PIPECTRLR
+        u16                     remote_pep;
+        u8                      pipe_state;
+#endif
 };
 
 static inline struct pep_sock *pep_sk(struct sock *sk)
@@ -165,4 +169,21 @@ enum {
         PEP_IND_READY,
 };
 
+#ifdef CONFIG_PHONET_PIPECTRLR
+#define PNS_PEP_CONNECT_UTID           0x02
+#define PNS_PIPE_CREATED_IND_UTID      0x04
+#define PNS_PIPE_ENABLE_UTID           0x0A
+#define PNS_PIPE_ENABLED_IND_UTID      0x0C
+#define PNS_PIPE_DISABLE_UTID          0x0F
+#define PNS_PIPE_DISABLED_IND_UTID     0x11
+#define PNS_PEP_DISCONNECT_UTID        0x06
+
+/* Used for tracking state of a pipe */
+enum {
+        PIPE_IDLE,
+        PIPE_DISABLED,
+        PIPE_ENABLED,
+};
+#endif /* CONFIG_PHONET_PIPECTRLR */
+
 #endif