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/*-
* BSD LICENSE
*
* Copyright (c) 2015-2017 Atomic Rules LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ARK_PKTDIR_H_
#define _ARK_PKTDIR_H_
#include <stdint.h>
#define ARK_PKTDIR_BASE_ADR 0xa0000
typedef void *ark_pkt_dir_t;
/* The packet director is an internal Arkville hardware module for
* directing packet data in non-typical flows, such as testing.
* This module is *not* intended for end-user manipulation, hence
* there is minimal documentation.
*/
/*
* This is an overlay structures to a memory mapped FPGA device. These
* structs will never be instantiated in ram memory
*/
struct ark_pkt_dir_regs {
uint32_t ctrl;
uint32_t status;
uint32_t stall_cnt;
} __attribute__ ((packed));
struct ark_pkt_dir_inst {
volatile struct ark_pkt_dir_regs *regs;
};
ark_pkt_dir_t ark_pktdir_init(void *base);
void ark_pktdir_uninit(ark_pkt_dir_t handle);
void ark_pktdir_setup(ark_pkt_dir_t handle, uint32_t v);
uint32_t ark_pktdir_stall_cnt(ark_pkt_dir_t handle);
uint32_t ark_pktdir_status(ark_pkt_dir_t handle);
#endif
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