1 /* $NetBSD: dmacvar.h,v 1.4 2014/03/31 11:25:49 martin 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 * 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 /* DO NOT REORDER */ 33 enum dmac_channel { 34 D_CH0_VIF0 = 0, 35 D_CH1_VIF1, 36 D_CH2_GIF, 37 D_CH3_FROMIPU, 38 D_CH4_TOIPU, 39 D_CH5_SIF0, 40 D_CH6_SIF1, 41 D_CH7_SIF2, 42 D_CH8_FROMSPR, 43 D_CH9_TOSPR 44 }; 45 46 extern u_int32_t __dmac_enabled_channel; 47 48 void dmac_init(void); 49 50 /* start/stop */ 51 void dmac_start_channel(enum dmac_channel); 52 void dmac_stop_channel(enum dmac_channel); 53 void dmac_sync_buffer(void); 54 55 /* interrupt */ 56 int dmac_intr(u_int32_t); 57 void *dmac_intr_establish(enum dmac_channel, int, int (*)(void *), void *); 58 void dmac_intr_disestablish(void *); 59 void dmac_intr_disable(enum dmac_channel); 60 void dmac_intr_enable(enum dmac_channel); 61 void dmac_update_mask(u_int32_t); 62 63 /* polling */ 64 void dmac_cpc_set(enum dmac_channel); 65 void dmac_cpc_clear(enum dmac_channel); 66 void dmac_cpc_poll(void); 67 void dmac_bus_poll(enum dmac_channel); /* slow */ 68 69 /* misc */ 70 void dmac_chcr_write(enum dmac_channel, u_int32_t); 71