1 /* $NetBSD: qecvar.h,v 1.5 2002/08/23 02:53:11 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 struct qec_softc { 40 struct device sc_dev; /* us as a device */ 41 struct sbusdev sc_sd; /* sbus device */ 42 bus_space_tag_t sc_bustag; /* bus & dma tags */ 43 bus_dma_tag_t sc_dmatag; 44 struct openprom_range *sc_range;/* PROM ranges */ 45 int sc_nrange; /* */ 46 struct openprom_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 __P((struct qec_ring *, unsigned int)); 78