rsi: add coex support

With BT support, driver has to handle two streams of data
(i.e. wlan and BT). Actual coex implementation is in firmware.
Coex module just schedule the packets to firmware by taking them
from the corresponding paths.

Structures for module and protocol operations are introduced for
this purpose. Protocol operations structure is global structure
which can be shared among different modules. Move initialization
of coex and operating mode values to rsi_91x_init().

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/include/net/rsi_91x.h b/include/net/rsi_91x.h
index 16a447b..737ab4e 100644
--- a/include/net/rsi_91x.h
+++ b/include/net/rsi_91x.h
@@ -17,6 +17,8 @@
 #ifndef __RSI_HEADER_H__
 #define __RSI_HEADER_H__
 
+#include <linux/skbuff.h>
+
 /* HAL queue information */
 #define RSI_COEX_Q			0x0
 #define RSI_BT_Q			0x2
@@ -26,9 +28,27 @@
 #define RSI_BT_MGMT_Q			0x6
 #define RSI_BT_DATA_Q			0x7
 
+enum rsi_coex_queues {
+	RSI_COEX_Q_INVALID = -1,
+	RSI_COEX_Q_COMMON = 0,
+	RSI_COEX_Q_BT,
+	RSI_COEX_Q_WLAN
+};
+
 enum rsi_host_intf {
 	RSI_HOST_INTF_SDIO = 0,
 	RSI_HOST_INTF_USB
 };
 
+struct rsi_proto_ops {
+	int (*coex_send_pkt)(void *priv, struct sk_buff *skb, u8 hal_queue);
+	enum rsi_host_intf (*get_host_intf)(void *priv);
+	void (*set_bt_context)(void *priv, void *context);
+};
+
+struct rsi_mod_ops {
+	int (*attach)(void *priv, struct rsi_proto_ops *ops);
+	void (*detach)(void *priv);
+	int (*recv_pkt)(void *priv, u8 *msg);
+};
 #endif