1/* $NetBSD: lsi64854var.h,v 1.12 2008/04/28 20:23:50 martin Exp $ */ 2 3/*- 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Paul Kranenburg. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34/* $FreeBSD$ */ 35 36struct lsi64854_softc { 37 device_t sc_dev; 38 39 struct resource *sc_res; 40 u_int sc_rev; /* revision */ 41 int sc_burst; /* max suported burst size */ 42 43 int sc_channel; 44#define L64854_CHANNEL_SCSI 1 45#define L64854_CHANNEL_ENET 2 46#define L64854_CHANNEL_PP 3 47 void *sc_client; 48 49 int sc_active; /* DMA active? */ 50 bus_dmamap_t sc_dmamap; /* DMA map for bus_dma_* */ 51 52 bus_dma_tag_t sc_parent_dmat; 53 bus_dma_tag_t sc_buffer_dmat; 54 bus_size_t sc_maxdmasize; 55 int sc_datain; 56 size_t sc_dmasize; 57 void **sc_dmaaddr; 58 size_t *sc_dmalen; 59 60 void (*reset)(struct lsi64854_softc *);/* reset routine */ 61 int (*setup)(struct lsi64854_softc *, void **, size_t *, 62 int, size_t *); /* DMA setup */ 63 int (*intr)(void *); /* interrupt handler */ 64 65 u_int sc_dmactl; 66 int sc_dodrain; 67}; 68 69#define L64854_GCSR(sc) bus_read_4((sc)->sc_res, L64854_REG_CSR) 70#define L64854_SCSR(sc, csr) bus_write_4((sc)->sc_res, L64854_REG_CSR, csr) 71 72/* 73 * DMA engine interface functions. 74 */ 75#define DMA_RESET(sc) (((sc)->reset)(sc)) 76#define DMA_INTR(sc) (((sc)->intr)(sc)) 77#define DMA_SETUP(sc, a, l, d, s) (((sc)->setup)(sc, a, l, d, s)) 78#define DMA_ISACTIVE(sc) ((sc)->sc_active) 79 80#define DMA_ENINTR(sc) do { \ 81 uint32_t csr = L64854_GCSR(sc); \ 82 csr |= L64854_INT_EN; \ 83 L64854_SCSR(sc, csr); \ 84} while (/* CONSTCOND */0) 85 86#define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND)) 87 88#define DMA_GO(sc) do { \ 89 uint32_t csr = L64854_GCSR(sc); \ 90 csr |= D_EN_DMA; \ 91 L64854_SCSR(sc, csr); \ 92 sc->sc_active = 1; \ 93} while (/* CONSTCOND */0) 94 95int lsi64854_attach(struct lsi64854_softc *); 96int lsi64854_detach(struct lsi64854_softc *); 97