1 /* $NetBSD: lsi64854var.h,v 1.12 2008/04/28 20:23:50 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* $FreeBSD$ */ 33 34 struct lsi64854_softc { 35 device_t sc_dev; 36 37 struct resource *sc_res; 38 u_int sc_rev; /* revision */ 39 int sc_burst; /* max suported burst size */ 40 41 int sc_channel; 42 #define L64854_CHANNEL_SCSI 1 43 #define L64854_CHANNEL_ENET 2 44 #define L64854_CHANNEL_PP 3 45 void *sc_client; 46 47 int sc_active; /* DMA active? */ 48 bus_dmamap_t sc_dmamap; /* DMA map for bus_dma_* */ 49 50 bus_dma_tag_t sc_parent_dmat; 51 bus_dma_tag_t sc_buffer_dmat; 52 bus_size_t sc_maxdmasize; 53 int sc_datain; 54 size_t sc_dmasize; 55 void **sc_dmaaddr; 56 size_t *sc_dmalen; 57 58 void (*reset)(struct lsi64854_softc *);/* reset routine */ 59 int (*setup)(struct lsi64854_softc *, void **, size_t *, 60 int, size_t *); /* DMA setup */ 61 int (*intr)(void *); /* interrupt handler */ 62 63 u_int sc_dmactl; 64 int sc_dodrain; 65 }; 66 67 #define L64854_GCSR(sc) bus_read_4((sc)->sc_res, L64854_REG_CSR) 68 #define L64854_SCSR(sc, csr) bus_write_4((sc)->sc_res, L64854_REG_CSR, csr) 69 70 /* 71 * DMA engine interface functions. 72 */ 73 #define DMA_RESET(sc) (((sc)->reset)(sc)) 74 #define DMA_INTR(sc) (((sc)->intr)(sc)) 75 #define DMA_SETUP(sc, a, l, d, s) (((sc)->setup)(sc, a, l, d, s)) 76 #define DMA_ISACTIVE(sc) ((sc)->sc_active) 77 78 #define DMA_ENINTR(sc) do { \ 79 uint32_t csr = L64854_GCSR(sc); \ 80 csr |= L64854_INT_EN; \ 81 L64854_SCSR(sc, csr); \ 82 } while (/* CONSTCOND */0) 83 84 #define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND)) 85 86 #define DMA_GO(sc) do { \ 87 uint32_t csr = L64854_GCSR(sc); \ 88 csr |= D_EN_DMA; \ 89 L64854_SCSR(sc, csr); \ 90 sc->sc_active = 1; \ 91 } while (/* CONSTCOND */0) 92 93 int lsi64854_attach(struct lsi64854_softc *); 94 int lsi64854_detach(struct lsi64854_softc *); 95