/* $NetBSD: qecvar.h,v 1.14 2009/09/19 04:48:18 tsutsui Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Kranenburg. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ struct qec_softc { device_t sc_dev; /* us as a device */ bus_space_tag_t sc_bustag; /* bus & DMA tags */ bus_dma_tag_t sc_dmatag; struct openprom_intr *sc_intr; /* interrupt info */ bus_space_handle_t sc_regs; /* QEC registers */ int sc_nchannels; /* # of channels on board */ int sc_burst; /* DVMA burst size in effect */ void * sc_buffer; /* VA of the buffer we provide */ int sc_bufsiz; /* Size of buffer */ u_int sc_msize; /* QEC buffer offset per channel */ u_int sc_rsize; /* QEC buffer size for receive */ }; struct qec_ring { /* Ring Descriptors */ void * rb_membase; /* Packet buffer: CPU address */ bus_addr_t rb_dmabase; /* Packet buffer: DMA address */ struct qec_xd *rb_txd; /* Transmit descriptors */ bus_addr_t rb_txddma; /* DMA address of same */ struct qec_xd *rb_rxd; /* Receive descriptors */ bus_addr_t rb_rxddma; /* DMA address of same */ uint8_t *rb_txbuf; /* Transmit buffers */ uint8_t *rb_rxbuf; /* Receive buffers */ int rb_ntbuf; /* # of transmit buffers */ int rb_nrbuf; /* # of receive buffers */ /* Ring Descriptor state */ int rb_tdhead, rb_tdtail; int rb_rdtail; int rb_td_nbusy; }; void qec_meminit(struct qec_ring *, unsigned int); |