1 /* $NetBSD: dmacvar.h,v 1.1 2001/10/16 15:38:36 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 /* DO NOT REORDER */ 40 enum dmac_channel { 41 D_CH0_VIF0 = 0, 42 D_CH1_VIF1, 43 D_CH2_GIF, 44 D_CH3_FROMIPU, 45 D_CH4_TOIPU, 46 D_CH5_SIF0, 47 D_CH6_SIF1, 48 D_CH7_SIF2, 49 D_CH8_FROMSPR, 50 D_CH9_TOSPR 51 }; 52 53 extern u_int32_t __dmac_enabled_channel; 54 55 void dmac_init(void); 56 57 /* start/stop */ 58 void dmac_start_channel(enum dmac_channel); 59 void dmac_stop_channel(enum dmac_channel); 60 void dmac_sync_buffer(void); 61 62 /* interrupt */ 63 int dmac_intr(u_int32_t); 64 void *dmac_intr_establish(enum dmac_channel, int, int (*)(void *), void *); 65 void dmac_intr_disestablish(void *); 66 void dmac_intr_disable(enum dmac_channel); 67 void dmac_intr_enable(enum dmac_channel); 68 void dmac_update_mask(u_int32_t); 69 70 /* polling */ 71 void dmac_cpc_set(enum dmac_channel); 72 void dmac_cpc_clear(enum dmac_channel); 73 void dmac_cpc_poll(void); 74 void dmac_bus_poll(enum dmac_channel); /* slow */ 75 76 /* misc */ 77 void dmac_chcr_write(enum dmac_channel, u_int32_t); 78