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Annotation of sys/dev/sbus/qecvar.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: qecvar.h,v 1.3 2006/06/02 20:00:56 miod Exp $ */
                      2: /*     $NetBSD: qecvar.h,v 1.4 1999/01/17 20:47:50 pk Exp $    */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1998 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: struct qec_softc {
                     41:        struct device sc_dev;           /* us as a device */
                     42:        bus_space_tag_t sc_bustag;      /* bus & dma tags */
                     43:        bus_dma_tag_t   sc_dmatag;
                     44:        struct  sbus_range *sc_range;   /* PROM ranges */
                     45:        int     sc_nrange;              /*             */
                     46:        struct  sbus_intr *sc_intr;     /* interrupt info */
                     47:
                     48:        bus_space_handle_t sc_regs;     /* QEC registers */
                     49:        int     sc_nchannels;           /* # of channels on board */
                     50:        int     sc_burst;               /* DVMA burst size in effect */
                     51:        caddr_t sc_buffer;              /* VA of the buffer we provide */
                     52:        int     sc_bufsiz;              /* Size of buffer */
                     53:
                     54:        u_int   sc_msize;               /* QEC buffer offset per channel */
                     55:        u_int   sc_rsize;               /* QEC buffer size for receive */
                     56: };
                     57:
                     58: struct qec_ring {
                     59:        /* Ring Descriptors */
                     60:        caddr_t         rb_membase;     /* Packet buffer: CPU address */
                     61:        bus_addr_t      rb_dmabase;     /* Packet buffer: DMA address */
                     62:        struct  qec_xd  *rb_txd;        /* Transmit descriptors */
                     63:        bus_addr_t      rb_txddma;      /* DMA address of same */
                     64:        struct  qec_xd  *rb_rxd;        /* Receive descriptors */
                     65:        bus_addr_t      rb_rxddma;      /* DMA address of same */
                     66:        caddr_t         rb_txbuf;       /* Transmit buffers */
                     67:        caddr_t         rb_rxbuf;       /* Receive buffers */
                     68:        int             rb_ntbuf;       /* # of transmit buffers */
                     69:        int             rb_nrbuf;       /* # of receive buffers */
                     70:
                     71:        /* Ring Descriptor state */
                     72:        int     rb_tdhead, rb_tdtail;
                     73:        int     rb_rdtail;
                     74:        int     rb_td_nbusy;
                     75: };
                     76:
                     77: void   qec_meminit(struct qec_ring *, unsigned int);