78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
/* $NetBSD: qecvar.h,v 1.6 2003/05/03 18:11:39 wiz Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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struct qec_softc {
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struct device sc_dev; /* us as a device */
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struct sbusdev sc_sd; /* sbus device */
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bus_space_tag_t sc_bustag; /* bus & DMA tags */
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bus_dma_tag_t sc_dmatag;
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struct openprom_range *sc_range;/* PROM ranges */
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int sc_nrange; /* */
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struct openprom_intr *sc_intr; /* interrupt info */
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bus_space_handle_t sc_regs; /* QEC registers */
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int sc_nchannels; /* # of channels on board */
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int sc_burst; /* DVMA burst size in effect */
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caddr_t sc_buffer; /* VA of the buffer we provide */
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int sc_bufsiz; /* Size of buffer */
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u_int sc_msize; /* QEC buffer offset per channel */
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u_int sc_rsize; /* QEC buffer size for receive */
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};
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struct qec_ring {
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/* Ring Descriptors */
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caddr_t rb_membase; /* Packet buffer: CPU address */
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bus_addr_t rb_dmabase; /* Packet buffer: DMA address */
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struct qec_xd *rb_txd; /* Transmit descriptors */
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bus_addr_t rb_txddma; /* DMA address of same */
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struct qec_xd *rb_rxd; /* Receive descriptors */
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bus_addr_t rb_rxddma; /* DMA address of same */
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caddr_t rb_txbuf; /* Transmit buffers */
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caddr_t rb_rxbuf; /* Receive buffers */
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int rb_ntbuf; /* # of transmit buffers */
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int rb_nrbuf; /* # of receive buffers */
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/* Ring Descriptor state */
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int rb_tdhead, rb_tdtail;
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int rb_rdtail;
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int rb_td_nbusy;
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};
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void qec_meminit __P((struct qec_ring *, unsigned int));
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