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Annotation of sys/dev/ic/hmevar.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: hmevar.h,v 1.9 2006/12/21 22:13:36 jason Exp $        */
                      2: /*     $NetBSD: hmevar.h,v 1.6 2000/09/28 10:56:57 tsutsui Exp $       */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1999 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Paul Kranenburg.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #include <sys/timeout.h>
                     41:
                     42: #define        HME_TX_RING_SIZE        64
                     43: #define        HME_RX_RING_SIZE        64
                     44: #define        HME_RX_RING_MAX         256
                     45: #define        HME_TX_RING_MAX         256
                     46: #define        HME_RX_PKTSIZE          1600
                     47:
                     48: struct hme_sxd {
                     49:        struct mbuf *sd_mbuf;           /* descriptor mbuf */
                     50:        bus_dmamap_t sd_map;            /* descriptor dmamap */
                     51:        int sd_loaded;                  /* descriptor dmamap loaded? */
                     52: };
                     53:
                     54: struct hme_ring {
                     55:        /* Ring Descriptors */
                     56:        caddr_t         rb_membase;     /* Packet buffer: CPU address */
                     57:        bus_addr_t      rb_dmabase;     /* Packet buffer: DMA address */
                     58:        caddr_t         rb_txd;         /* Transmit descriptors */
                     59:        bus_addr_t      rb_txddma;      /* DMA address of same */
                     60:        caddr_t         rb_rxd;         /* Receive descriptors */
                     61:        bus_addr_t      rb_rxddma;      /* DMA address of same */
                     62: };
                     63:
                     64: struct hme_softc {
                     65:        struct device   sc_dev;         /* boilerplate device view */
                     66:        struct arpcom   sc_arpcom;      /* Ethernet common part */
                     67:        struct mii_data sc_mii;         /* MII media control */
                     68: #define sc_media       sc_mii.mii_media/* shorthand */
                     69:        struct timeout  sc_tick_ch;     /* tick callout */
                     70:
                     71:        /* The following bus handles are to be provided by the bus front-end */
                     72:        bus_space_tag_t sc_bustag;      /* bus tag */
                     73:        bus_dma_tag_t   sc_dmatag;      /* bus dma tag */
                     74:        bus_dmamap_t    sc_dmamap;      /* bus dma handle */
                     75:        bus_space_handle_t sc_seb;      /* HME Global registers */
                     76:        bus_space_handle_t sc_erx;      /* HME ERX registers */
                     77:        bus_space_handle_t sc_etx;      /* HME ETX registers */
                     78:        bus_space_handle_t sc_mac;      /* HME MAC registers */
                     79:        bus_space_handle_t sc_mif;      /* HME MIF registers */
                     80:        int             sc_burst;       /* DVMA burst size in effect */
                     81:        int             sc_phys[2];     /* MII instance -> PHY map */
                     82:
                     83:        int             sc_pci;         /* XXXXX -- PCI buses are LE. */
                     84:
                     85:        /* Ring descriptor */
                     86:        struct hme_ring         sc_rb;
                     87:
                     88:        int                     sc_debug;
                     89:        void                    *sc_sh;         /* shutdownhook cookie */
                     90:        short                   sc_if_flags;
                     91:
                     92:        /* Special hardware hooks */
                     93:        void    (*sc_hwreset)(struct hme_softc *);
                     94:        void    (*sc_hwinit)(struct hme_softc *);
                     95:
                     96:        struct hme_sxd sc_txd[HME_TX_RING_MAX], sc_rxd[HME_RX_RING_MAX];
                     97:        bus_dmamap_t    sc_rxmap_spare;
                     98:        int     sc_tx_cnt, sc_tx_prod, sc_tx_cons;
                     99:        int     sc_last_rd;
                    100:        u_int32_t sc_tcvr;
                    101: };
                    102:
                    103:
                    104: void   hme_config(struct hme_softc *);
                    105: void   hme_reset(struct hme_softc *);
                    106: int    hme_intr(void *);