/*      $NetBSD: mb86960var.h,v 1.41 2021/07/31 14:36:33 andvar Exp $   */

/*
* All Rights Reserved, Copyright (C) Fujitsu Limited 1995
*
* This software may be used, modified, copied, distributed, and sold, in
* both source and binary form provided that the above copyright, these
* terms and the following disclaimer are retained.  The name of the author
* and/or the contributor may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``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 OR THE CONTRIBUTOR 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.
*/

/*
* Portions copyright (C) 1993, David Greenman.  This software may be used,
* modified, copied, distributed, and sold, in both source and binary form
* provided that the above copyright and these terms are retained.  Under no
* circumstances is the author responsible for the proper functioning of this
* software, nor does the author assume any responsibility for damages
* incurred with its use.
*/

/*
* Device driver for Fujitsu MB86960A/MB86965A based Ethernet cards.
* Contributed by M.S. <[email protected]>
*
* This version is intended to be a generic template for various
* MB86960A/MB86965A based Ethernet cards.  It currently supports
* Fujitsu FMV-180 series (i.e., FMV-181 and FMV-182) and Allied-
* Telesis AT1700 series and RE2000 series.  There are some
* unnecessary hooks embedded, which are primarily intended to support
* other types of Ethernet cards, but the author is not sure whether
* they are useful.
*/

#include <sys/rndsource.h>

/*
* Default settings for fe driver specific options.
* They can be set in config file by "options" statements.
*/

/*
* Debug control.
* 0: No debug at all.  All debug specific codes are stripped off.
* 1: Silent.  No debug messages are logged except emergent ones.
* 2: Brief.  Lair events and/or important information are logged.
* 3: Detailed.  Logs all information which *may* be useful for debugging.
* 4: Trace.  All actions in the driver is logged.  Super verbose.
*/
#ifndef FE_DEBUG
#define FE_DEBUG                1
#endif

/*
* Delay padding of short transmission packets to minimum Ethernet size.
* This may or may not gain performance.  An EXPERIMENTAL option.
*/
#ifndef FE_DELAYED_PADDING
#define FE_DELAYED_PADDING      0
#endif

/*
* Transmit just one packet per a "send" command to 86960.
* This option is intended for performance test.  An EXPERIMENTAL option.
*/
#ifndef FE_SINGLE_TRANSMISSION
#define FE_SINGLE_TRANSMISSION  0
#endif

/*
* Device configuration flags.
*/

/* DLCR6 settings. */
#define FE_FLAGS_DLCR6_VALUE    0x007F

/* Force DLCR6 override. */
#define FE_FLAGS_OVERRIDE_DLCR6 0x0080

/*
* Supported hardware (Ethernet card) types
* This information is currently used only for debugging
*/
enum fe_type {
       /* For cards which are successfully probed but not identified. */
       FE_TYPE_UNKNOWN = 0,

       /* Fujitsu FMV-180 series. */
       FE_TYPE_FMV181,
       FE_TYPE_FMV181A,
       FE_TYPE_FMV182,
       FE_TYPE_FMV182A,
       FE_TYPE_FMV183,
       FE_TYPE_FMV184,

       /* Allied-Telesis AT1700 series and RE2000 series. */
       FE_TYPE_AT1700T,
       FE_TYPE_AT1700BT,
       FE_TYPE_AT1700FT,
       FE_TYPE_AT1700AT,
       FE_TYPE_AT_UNKNOWN,

       /* PCMCIA by Fujitsu. */
       FE_TYPE_MBH10302,
       FE_TYPE_MBH10304
};

/*
* fe_softc: per line info and status
*/
struct mb86960_softc {
       device_t sc_dev;
       struct ethercom sc_ec;          /* ethernet common */
       struct ifmedia sc_media;        /* supported media information */

       bus_space_tag_t sc_bst;         /* bus space */
       bus_space_handle_t sc_bsh;

       /* Set by probe() and not modified in later phases. */
       uint32_t sc_flags;              /* controller quirks */
#define FE_FLAGS_MB86960        0x0001  /* DLCR7 is different on MB86960 */
#define FE_FLAGS_SBW_BYTE       0x0002  /* byte access mode for system bus */
#define FE_FLAGS_SRAM_150ns     0x0004  /* The board has slow SRAM */

       uint8_t proto_dlcr4;            /* DLCR4 prototype. */
       uint8_t proto_dlcr5;            /* DLCR5 prototype. */
       uint8_t proto_dlcr6;            /* DLCR6 prototype. */
       uint8_t proto_dlcr7;            /* DLCR7 prototype. */
       uint8_t proto_bmpr13;           /* BMPR13 prototype. */

       /* Vendor specific hooks. */
       void    (*init_card)(struct mb86960_softc *);
       void    (*stop_card)(struct mb86960_softc *);

       /* Transmission buffer management. */
       int     txb_size;       /* total bytes in TX buffer */
       int     txb_free;       /* free bytes in TX buffer */
       int     txb_count;      /* number of packets in TX buffer */
       int     txb_sched;      /* number of scheduled packets */
       int     txb_padding;    /* number of delayed padding bytes */

       /* Multicast address filter management. */
       int     filter_change;  /* MARs must be changed ASAP. */
       uint8_t filter[FE_FILTER_LEN];  /* new filter value. */

       uint8_t sc_enaddr[ETHER_ADDR_LEN];

       krndsource_t rnd_source;

       uint32_t sc_stat;       /* driver status */
#define FE_STAT_ENABLED         0x0001  /* power enabled on interface */
#define FE_STAT_ATTACHED        0x0002  /* attach has succeeded */

       int     (*sc_enable)(struct mb86960_softc *);
       void    (*sc_disable)(struct mb86960_softc *);

       int     (*sc_mediachange)(struct mb86960_softc *);
       void    (*sc_mediastatus)(struct mb86960_softc *, struct ifmediareq *);
};

/*
* Fe driver specific constants which relate to 86960/86965.
*/

/* Interrupt masks. */
#define FE_TMASK (FE_D2_COLL16 | FE_D2_TXDONE)
#define FE_RMASK (FE_D3_OVRFLO | FE_D3_CRCERR | \
                 FE_D3_ALGERR | FE_D3_SRTPKT | FE_D3_PKTRDY)

/* Maximum number of iterations for a receive interrupt. */
#define FE_MAX_RECV_COUNT ((65536 - 2048 * 2) / 64)
       /* Maximum size of SRAM is 65536,
        * minimum size of transmission buffer in fe is 2x2KB,
        * and minimum amount of received packet including headers
        * added by the chip is 64 bytes.
        * Hence FE_MAX_RECV_COUNT is the upper limit for number
        * of packets in the receive buffer. */

void    mb86960_attach(struct mb86960_softc *, uint8_t *);
void    mb86960_config(struct mb86960_softc *, int *, int, int);
int     mb86960_intr(void *);
int     mb86960_enable(struct mb86960_softc *);
void    mb86960_disable(struct mb86960_softc *);
int     mb86960_activate(device_t, enum devact);
int     mb86960_detach(struct mb86960_softc *);
void    mb86965_read_eeprom(bus_space_tag_t, bus_space_handle_t, uint8_t *);

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