/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _BCM_RPC_H_
#define _BCM_RPC_H_

#include <rpc_osl.h>

typedef struct rpc_info rpc_info_t;
typedef struct rpc_buf rpc_buf_t;
struct rpc_transport_info;
typedef void (*rpc_dispatch_cb_t) (void *ctx, struct rpc_buf *buf);
typedef void (*rpc_resync_cb_t) (void *ctx);
typedef void (*rpc_down_cb_t) (void *ctx);
typedef void (*rpc_txdone_cb_t) (void *ctx, struct rpc_buf *buf);
extern struct rpc_info *bcm_rpc_attach(void *pdev, osl_t *osh,
				       struct rpc_transport_info *rpc_th);

extern void bcm_rpc_detach(struct rpc_info *rpc);
extern void bcm_rpc_down(struct rpc_info *rpc);
extern void bcm_rpc_watchdog(struct rpc_info *rpc);

extern struct rpc_buf *bcm_rpc_buf_alloc(struct rpc_info *rpc, int len);
extern void bcm_rpc_buf_free(struct rpc_info *rpc, struct rpc_buf *b);
/* get rpc transport handle */
extern struct rpc_transport_info *bcm_rpc_tp_get(struct rpc_info *rpc);

/* callback for: data_rx, down, resync */
extern void bcm_rpc_rxcb_init(struct rpc_info *rpc, void *ctx,
			      rpc_dispatch_cb_t cb, void *dnctx,
			      rpc_down_cb_t dncb, rpc_resync_cb_t resync_cb,
			      rpc_txdone_cb_t);
extern void bcm_rpc_rxcb_deinit(struct rpc_info *rpci);

/* HOST or CLIENT rpc call, requiring no return value */
extern int bcm_rpc_call(struct rpc_info *rpc, struct rpc_buf *b);

/* HOST rpc call, demanding return.
 *   The thread may be suspended and control returns back to OS
 *   The thread will resume(waked up) on either the return signal received or timeout
 *     The implementation details depend on OS
 */
extern struct rpc_buf *bcm_rpc_call_with_return(struct rpc_info *rpc,
						struct rpc_buf *b);

/* CLIENT rpc call to respond to bcm_rpc_call_with_return, requiring no return value */
extern int bcm_rpc_call_return(struct rpc_info *rpc, struct rpc_buf *retb);

extern uint bcm_rpc_buf_header_len(struct rpc_info *rpci);

#define RPC_PKTLOG_SIZE		50	/* Depth of the history */
#define RPC_PKTLOG_RD_LEN	3
#define RPC_PKTLOG_DUMP_SIZE	150	/* dump size should be more than the product of above two */
extern int bcm_rpc_pktlog_get(struct rpc_info *rpci, u32 *buf,
			      uint buf_size, bool send);
extern int bcm_rpc_dump(rpc_info_t *rpci, struct bcmstrbuf *b);

/* HIGH/BMAC: bit 15-8: RPC module, bit 7-0: TP module */
#define RPC_ERROR_VAL	0x0001
#define RPC_TRACE_VAL	0x0002
#define RPC_PKTTRACE_VAL 0x0004
#define RPC_PKTLOG_VAL	0x0008
extern void bcm_rpc_msglevel_set(struct rpc_info *rpci, u16 msglevel,
				 bool high_low);

#endif				/* _BCM_RPC_H_ */