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mb86960var.h revision 1.37
      1 /*	$NetBSD: mb86960var.h,v 1.37 2009/05/12 14:25:17 cegger Exp $	*/
      2 
      3 /*
      4  * All Rights Reserved, Copyright (C) Fujitsu Limited 1995
      5  *
      6  * This software may be used, modified, copied, distributed, and sold, in
      7  * both source and binary form provided that the above copyright, these
      8  * terms and the following disclaimer are retained.  The name of the author
      9  * and/or the contributor may not be used to endorse or promote products
     10  * derived from this software without specific prior written permission.
     11  *
     12  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND
     13  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     14  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     15  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE
     16  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     17  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     18  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION.
     19  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     20  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     21  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     22  * SUCH DAMAGE.
     23  */
     24 
     25 /*
     26  * Portions copyright (C) 1993, David Greenman.  This software may be used,
     27  * modified, copied, distributed, and sold, in both source and binary form
     28  * provided that the above copyright and these terms are retained.  Under no
     29  * circumstances is the author responsible for the proper functioning of this
     30  * software, nor does the author assume any responsibility for damages
     31  * incurred with its use.
     32  */
     33 
     34 /*
     35  * Device driver for Fujitsu MB86960A/MB86965A based Ethernet cards.
     36  * Contributed by M.S. <seki (at) sysrap.cs.fujitsu.co.jp>
     37  *
     38  * This version is intended to be a generic template for various
     39  * MB86960A/MB86965A based Ethernet cards.  It currently supports
     40  * Fujitsu FMV-180 series (i.e., FMV-181 and FMV-182) and Allied-
     41  * Telesis AT1700 series and RE2000 series.  There are some
     42  * unnecessary hooks embedded, which are primarily intended to support
     43  * other types of Ethernet cards, but the author is not sure whether
     44  * they are useful.
     45  */
     46 
     47 #include "rnd.h"
     48 
     49 #if NRND > 0
     50 #include <sys/rnd.h>
     51 #endif
     52 
     53 /*
     54  * Default settings for fe driver specific options.
     55  * They can be set in config file by "options" statements.
     56  */
     57 
     58 /*
     59  * Debug control.
     60  * 0: No debug at all.  All debug specific codes are stripped off.
     61  * 1: Silent.  No debug messages are logged except emergent ones.
     62  * 2: Brief.  Lair events and/or important information are logged.
     63  * 3: Detailed.  Logs all information which *may* be useful for debugging.
     64  * 4: Trace.  All actions in the driver is logged.  Super verbose.
     65  */
     66 #ifndef FE_DEBUG
     67 #define FE_DEBUG		1
     68 #endif
     69 
     70 /*
     71  * Delay padding of short transmission packets to minimum Ethernet size.
     72  * This may or may not gain performance.  An EXPERIMENTAL option.
     73  */
     74 #ifndef FE_DELAYED_PADDING
     75 #define FE_DELAYED_PADDING	0
     76 #endif
     77 
     78 /*
     79  * Transmit just one packet per a "send" command to 86960.
     80  * This option is intended for performance test.  An EXPERIMENTAL option.
     81  */
     82 #ifndef FE_SINGLE_TRANSMISSION
     83 #define FE_SINGLE_TRANSMISSION	0
     84 #endif
     85 
     86 /*
     87  * Device configuration flags.
     88  */
     89 
     90 /* DLCR6 settings. */
     91 #define FE_FLAGS_DLCR6_VALUE	0x007F
     92 
     93 /* Force DLCR6 override. */
     94 #define FE_FLAGS_OVERRIDE_DLCR6	0x0080
     95 
     96 /*
     97  * Supported hardware (Ethernet card) types
     98  * This information is currently used only for debugging
     99  */
    100 enum fe_type {
    101 	/* For cards which are successfully probed but not identified. */
    102 	FE_TYPE_UNKNOWN = 0,
    103 
    104 	/* Fujitsu FMV-180 series. */
    105 	FE_TYPE_FMV181,
    106 	FE_TYPE_FMV181A,
    107 	FE_TYPE_FMV182,
    108 	FE_TYPE_FMV182A,
    109 	FE_TYPE_FMV183,
    110 	FE_TYPE_FMV184,
    111 
    112 	/* Allied-Telesis AT1700 series and RE2000 series. */
    113 	FE_TYPE_AT1700T,
    114 	FE_TYPE_AT1700BT,
    115 	FE_TYPE_AT1700FT,
    116 	FE_TYPE_AT1700AT,
    117 	FE_TYPE_AT_UNKNOWN,
    118 
    119 	/* PCMCIA by Fujitsu. */
    120 	FE_TYPE_MBH10302,
    121 	FE_TYPE_MBH10304
    122 };
    123 
    124 /*
    125  * fe_softc: per line info and status
    126  */
    127 struct mb86960_softc {
    128 	device_t sc_dev;
    129 	struct ethercom sc_ec;		/* ethernet common */
    130 	struct ifmedia sc_media;	/* supported media information */
    131 
    132 	bus_space_tag_t sc_bst;		/* bus space */
    133 	bus_space_handle_t sc_bsh;
    134 
    135 	/* Set by probe() and not modified in later phases. */
    136 	uint32_t sc_flags;		/* controller quirks */
    137 #define FE_FLAGS_MB86960	0x0001	/* DLCR7 is differnt on MB86960 */
    138 #define FE_FLAGS_SBW_BYTE	0x0002	/* byte access mode for system bus */
    139 #define FE_FLAGS_SRAM_150ns	0x0004	/* The board has slow SRAM */
    140 
    141 	uint8_t proto_dlcr4;		/* DLCR4 prototype. */
    142 	uint8_t proto_dlcr5;		/* DLCR5 prototype. */
    143 	uint8_t proto_dlcr6;		/* DLCR6 prototype. */
    144 	uint8_t proto_dlcr7;		/* DLCR7 prototype. */
    145 	uint8_t proto_bmpr13;		/* BMPR13 prototype. */
    146 
    147 	/* Vendor specific hooks. */
    148 	void	(*init_card)(struct mb86960_softc *);
    149 	void	(*stop_card)(struct mb86960_softc *);
    150 
    151 	/* Transmission buffer management. */
    152 	int	txb_size;	/* total bytes in TX buffer */
    153 	int	txb_free;	/* free bytes in TX buffer */
    154 	int	txb_count;	/* number of packets in TX buffer */
    155 	int	txb_sched;	/* number of scheduled packets */
    156 	int	txb_padding;	/* number of delayed padding bytes */
    157 
    158 	/* Multicast address filter management. */
    159 	int	filter_change;	/* MARs must be changed ASAP. */
    160 	uint8_t filter[FE_FILTER_LEN];	/* new filter value. */
    161 
    162 	uint8_t sc_enaddr[ETHER_ADDR_LEN];
    163 
    164 #if NRND > 0
    165 	rndsource_element_t rnd_source;
    166 #endif
    167 
    168 	uint32_t sc_stat;	/* driver status */
    169 #define FE_STAT_ENABLED		0x0001	/* power enabled on interface */
    170 #define FE_STAT_ATTACHED	0x0002	/* attach has succeeded */
    171 
    172 	int	(*sc_enable)(struct mb86960_softc *);
    173 	void	(*sc_disable)(struct mb86960_softc *);
    174 
    175 	int	(*sc_mediachange)(struct mb86960_softc *);
    176 	void	(*sc_mediastatus)(struct mb86960_softc *, struct ifmediareq *);
    177 };
    178 
    179 /*
    180  * Fe driver specific constants which relate to 86960/86965.
    181  */
    182 
    183 /* Interrupt masks. */
    184 #define FE_TMASK (FE_D2_COLL16 | FE_D2_TXDONE)
    185 #define FE_RMASK (FE_D3_OVRFLO | FE_D3_CRCERR | \
    186 		  FE_D3_ALGERR | FE_D3_SRTPKT | FE_D3_PKTRDY)
    187 
    188 /* Maximum number of iterrations for a receive interrupt. */
    189 #define FE_MAX_RECV_COUNT ((65536 - 2048 * 2) / 64)
    190 	/* Maximum size of SRAM is 65536,
    191 	 * minimum size of transmission buffer in fe is 2x2KB,
    192 	 * and minimum amount of received packet including headers
    193 	 * added by the chip is 64 bytes.
    194 	 * Hence FE_MAX_RECV_COUNT is the upper limit for number
    195 	 * of packets in the receive buffer. */
    196 
    197 void	mb86960_attach(struct mb86960_softc *, uint8_t *);
    198 void	mb86960_config(struct mb86960_softc *, int *, int, int);
    199 int	mb86960_intr(void *);
    200 int	mb86960_enable(struct mb86960_softc *);
    201 void	mb86960_disable(struct mb86960_softc *);
    202 int	mb86960_activate(device_t, enum devact);
    203 int	mb86960_detach(struct mb86960_softc *);
    204 void	mb86965_read_eeprom(bus_space_tag_t, bus_space_handle_t, uint8_t *);
    205