/* $NetBSD: mb8795var.h,v 1.16 2023/02/03 23:04:35 tsutsui Exp $ */

/* $NetBSD: mb8795var.h,v 1.16 2023/02/03 23:04:35 tsutsui Exp $ */
/*
* Copyright (c) 1998 Darrin B. Jewell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/

#include <sys/rndsource.h>

#define MB8795_NRXBUFS (32)

struct mb8795_softc;

/*
* Function switch used as glue to MD code.
*/
struct mb8795_glue {
/* Mandatory entry points. */
u_char (*gl_read_reg)(struct mb8795_softc *, int);
void (*gl_write_reg)(struct mb8795_softc *, int, u_char);
void (*gl_dma_reset)(struct mb8795_softc *);
void (*gl_dma_rx_setup)(struct mb8795_softc *);
void (*gl_dma_rx_go)(struct mb8795_softc *);
struct mbuf * (*gl_dma_rx_mbuf)(struct mb8795_softc *);
void (*gl_dma_tx_setup)(struct mb8795_softc *);
void (*gl_dma_tx_go)(struct mb8795_softc *);
int (*gl_dma_tx_mbuf)(struct mb8795_softc *, struct mbuf *);
int (*gl_dma_tx_isactive)(struct mb8795_softc *);
/* Optional entry points. */
};

struct mb8795_softc {
device_t sc_dev; /* base device glue */
struct ethercom sc_ethercom; /* Ethernet common part */

struct mb8795_glue *sc_glue; /* glue to MD code */

void *sc_sh; /* shutdownhook cookie */

int sc_debug;

bus_space_tag_t sc_bmap_bst; /* bus space tag */

bus_space_handle_t sc_bmap_bsh; /* bus space handle */

uint8_t sc_enaddr[6];

struct ifaltq sc_tx_snd;

struct ifmedia sc_media;

krndsource_t rnd_source;

};

/*
* Macros to read and write the chip's registers.
*/
#define MB_READ_REG(sc, reg) \
(*(sc)->sc_glue->gl_read_reg)((sc), (reg))
#define MB_WRITE_REG(sc, reg, val) \
(*(sc)->sc_glue->gl_write_reg)((sc), (reg), (val))

/*
* DMA macros for mb8795
*/
#define MBDMA_RESET(sc) (*(sc)->sc_glue->gl_dma_reset)((sc))
#define MBDMA_SETUP(sc, addr, len, datain, dmasize) \
(*(sc)->sc_glue->gl_dma_setup)((sc), (addr), (len), (datain), (dmasize))
#define MBDMA_GO(sc) (*(sc)->sc_glue->gl_dma_go)((sc))
#define MBDMA_ISACTIVE(sc) (*(sc)->sc_glue->gl_dma_isactive)((sc))
#define MBDMA_RX_SETUP(sc) (*(sc)->sc_glue->gl_dma_rx_setup) ((sc))
#define MBDMA_RX_GO(sc) (*(sc)->sc_glue->gl_dma_rx_go) ((sc))
#define MBDMA_RX_MBUF(sc) (*(sc)->sc_glue->gl_dma_rx_mbuf) ((sc))
#define MBDMA_TX_SETUP(sc) (*(sc)->sc_glue->gl_dma_tx_setup) ((sc))
#define MBDMA_TX_GO(sc) (*(sc)->sc_glue->gl_dma_tx_go) ((sc))
#define MBDMA_TX_MBUF(sc,m) (*(sc)->sc_glue->gl_dma_tx_mbuf) ((sc), (m))
#define MBDMA_TX_ISACTIVE(sc) (*(sc)->sc_glue->gl_dma_tx_isactive)((sc))

void mb8795_config(struct mb8795_softc *, int *, int, int);
void mb8795_init(struct mb8795_softc *);
int mb8795_ioctl(struct ifnet *, u_long, void *);
void mb8795_reset(struct mb8795_softc *);
void mb8795_start(struct ifnet *);
void mb8795_stop(struct mb8795_softc *);
void mb8795_watchdog(struct ifnet *);

void mb8795_rint(struct mb8795_softc *);
void mb8795_tint(struct mb8795_softc *);