1 /* $OpenBSD: qecvar.h,v 1.2 2002/03/14 01:27:02 millert 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 struct sbusdev sc_sd; /* sbus device */ 43 bus_space_tag_t sc_bustag; /* bus & dma tags */ 44 bus_dma_tag_t sc_dmatag; 45 struct sbus_range *sc_range; /* PROM ranges */ 46 int sc_nrange; /* */ 47 struct sbus_intr *sc_intr; /* interrupt info */ 48 49 bus_space_handle_t sc_regs; /* QEC registers */ 50 int sc_nchannels; /* # of channels on board */ 51 int sc_burst; /* DVMA burst size in effect */ 52 caddr_t sc_buffer; /* VA of the buffer we provide */ 53 int sc_bufsiz; /* Size of buffer */ 54 55 u_int sc_msize; /* QEC buffer offset per channel */ 56 u_int sc_rsize; /* QEC buffer size for receive */ 57 }; 58 59 struct qec_ring { 60 /* Ring Descriptors */ 61 caddr_t rb_membase; /* Packet buffer: CPU address */ 62 bus_addr_t rb_dmabase; /* Packet buffer: DMA address */ 63 struct qec_xd *rb_txd; /* Transmit descriptors */ 64 bus_addr_t rb_txddma; /* DMA address of same */ 65 struct qec_xd *rb_rxd; /* Receive descriptors */ 66 bus_addr_t rb_rxddma; /* DMA address of same */ 67 caddr_t rb_txbuf; /* Transmit buffers */ 68 caddr_t rb_rxbuf; /* Receive buffers */ 69 int rb_ntbuf; /* # of transmit buffers */ 70 int rb_nrbuf; /* # of receive buffers */ 71 72 /* Ring Descriptor state */ 73 int rb_tdhead, rb_tdtail; 74 int rb_rdtail; 75 int rb_td_nbusy; 76 }; 77 78 void qec_meminit(struct qec_ring *, unsigned int); 79