enable.c revision 1.7.52.1
1 1.7.52.1 mjf /* $NetBSD: enable.c,v 1.7.52.1 2008/06/02 13:22:47 mjf Exp $ */ 2 1.2 gwr 3 1.2 gwr /*- 4 1.2 gwr * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.2 gwr * All rights reserved. 6 1.2 gwr * 7 1.2 gwr * This code is derived from software contributed to The NetBSD Foundation 8 1.2 gwr * by Gordon W. Ross. 9 1.2 gwr * 10 1.2 gwr * Redistribution and use in source and binary forms, with or without 11 1.2 gwr * modification, are permitted provided that the following conditions 12 1.2 gwr * are met: 13 1.2 gwr * 1. Redistributions of source code must retain the above copyright 14 1.2 gwr * notice, this list of conditions and the following disclaimer. 15 1.2 gwr * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 gwr * notice, this list of conditions and the following disclaimer in the 17 1.2 gwr * documentation and/or other materials provided with the distribution. 18 1.2 gwr * 19 1.2 gwr * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 gwr * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 gwr * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 gwr * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 gwr * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 gwr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 gwr * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 gwr * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 gwr * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 gwr * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 gwr * POSSIBILITY OF SUCH DAMAGE. 30 1.2 gwr */ 31 1.4 lukem 32 1.4 lukem #include <sys/cdefs.h> 33 1.7.52.1 mjf __KERNEL_RCSID(0, "$NetBSD: enable.c,v 1.7.52.1 2008/06/02 13:22:47 mjf Exp $"); 34 1.2 gwr 35 1.2 gwr #include <sys/param.h> 36 1.7 tsutsui #include <uvm/uvm_extern.h> 37 1.7 tsutsui #include <machine/bus.h> 38 1.3 thorpej #include <dev/sun/fbio.h> 39 1.2 gwr #include <sun3/dev/fbvar.h> 40 1.2 gwr #include <sun3/sun3/machdep.h> 41 1.2 gwr #include <sun3/sun3x/enable.h> 42 1.2 gwr #include <sun3/sun3x/obio.h> 43 1.2 gwr 44 1.2 gwr volatile short *enable_reg; 45 1.2 gwr 46 1.5 chs void 47 1.5 chs enable_init(void) 48 1.2 gwr { 49 1.7 tsutsui vaddr_t va; 50 1.2 gwr 51 1.7 tsutsui find_prom_map(OBIO_ENABLEREG, PMAP_OBIO, 2, &va); 52 1.7 tsutsui enable_reg = (void *)va; 53 1.2 gwr } 54 1.2 gwr 55 1.2 gwr 56 1.2 gwr /* 57 1.2 gwr * External interfaces to the system enable register. 58 1.2 gwr */ 59 1.2 gwr 60 1.5 chs void 61 1.5 chs enable_fpu(int on) 62 1.2 gwr { 63 1.2 gwr int s; 64 1.2 gwr short ena; 65 1.2 gwr 66 1.2 gwr s = splhigh(); 67 1.2 gwr ena = *enable_reg; 68 1.2 gwr 69 1.2 gwr if (on) 70 1.2 gwr ena |= ENA_FPP; 71 1.2 gwr else 72 1.2 gwr ena &= ~ENA_FPP; 73 1.2 gwr 74 1.2 gwr *enable_reg = ena; 75 1.2 gwr splx(s); 76 1.2 gwr } 77 1.2 gwr 78 1.5 chs void 79 1.5 chs enable_video(int on) 80 1.2 gwr { 81 1.2 gwr int s; 82 1.2 gwr short ena; 83 1.2 gwr 84 1.2 gwr s = splhigh(); 85 1.2 gwr ena = *enable_reg; 86 1.2 gwr 87 1.2 gwr if (on) 88 1.2 gwr ena |= ENA_VIDEO; 89 1.2 gwr else 90 1.2 gwr ena &= ~ENA_VIDEO; 91 1.2 gwr 92 1.2 gwr *enable_reg = ena; 93 1.2 gwr splx(s); 94 1.2 gwr } 95 1.2 gwr 96
Indexes created Wed Oct 15 16:09:53 GMT 2025