enable.c revision 1.7
1 1.7 tsutsui /* $NetBSD: enable.c,v 1.7 2006/10/03 13:02:32 tsutsui 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 * 3. All advertising materials mentioning features or use of this software 19 1.2 gwr * must display the following acknowledgement: 20 1.2 gwr * This product includes software developed by the NetBSD 21 1.2 gwr * Foundation, Inc. and its contributors. 22 1.2 gwr * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2 gwr * contributors may be used to endorse or promote products derived 24 1.2 gwr * from this software without specific prior written permission. 25 1.2 gwr * 26 1.2 gwr * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2 gwr * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2 gwr * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2 gwr * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2 gwr * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2 gwr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2 gwr * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2 gwr * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2 gwr * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2 gwr * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2 gwr * POSSIBILITY OF SUCH DAMAGE. 37 1.2 gwr */ 38 1.4 lukem 39 1.4 lukem #include <sys/cdefs.h> 40 1.7 tsutsui __KERNEL_RCSID(0, "$NetBSD: enable.c,v 1.7 2006/10/03 13:02:32 tsutsui Exp $"); 41 1.2 gwr 42 1.2 gwr #include <sys/param.h> 43 1.7 tsutsui #include <uvm/uvm_extern.h> 44 1.7 tsutsui #include <machine/bus.h> 45 1.3 thorpej #include <dev/sun/fbio.h> 46 1.2 gwr #include <sun3/dev/fbvar.h> 47 1.2 gwr #include <sun3/sun3/machdep.h> 48 1.2 gwr #include <sun3/sun3x/enable.h> 49 1.2 gwr #include <sun3/sun3x/obio.h> 50 1.2 gwr 51 1.2 gwr volatile short *enable_reg; 52 1.2 gwr 53 1.5 chs void 54 1.5 chs enable_init(void) 55 1.2 gwr { 56 1.7 tsutsui vaddr_t va; 57 1.2 gwr 58 1.7 tsutsui find_prom_map(OBIO_ENABLEREG, PMAP_OBIO, 2, &va); 59 1.7 tsutsui enable_reg = (void *)va; 60 1.2 gwr } 61 1.2 gwr 62 1.2 gwr 63 1.2 gwr /* 64 1.2 gwr * External interfaces to the system enable register. 65 1.2 gwr */ 66 1.2 gwr 67 1.5 chs void 68 1.5 chs enable_fpu(int on) 69 1.2 gwr { 70 1.2 gwr int s; 71 1.2 gwr short ena; 72 1.2 gwr 73 1.2 gwr s = splhigh(); 74 1.2 gwr ena = *enable_reg; 75 1.2 gwr 76 1.2 gwr if (on) 77 1.2 gwr ena |= ENA_FPP; 78 1.2 gwr else 79 1.2 gwr ena &= ~ENA_FPP; 80 1.2 gwr 81 1.2 gwr *enable_reg = ena; 82 1.2 gwr splx(s); 83 1.2 gwr } 84 1.2 gwr 85 1.5 chs void 86 1.5 chs enable_video(int on) 87 1.2 gwr { 88 1.2 gwr int s; 89 1.2 gwr short ena; 90 1.2 gwr 91 1.2 gwr s = splhigh(); 92 1.2 gwr ena = *enable_reg; 93 1.2 gwr 94 1.2 gwr if (on) 95 1.2 gwr ena |= ENA_VIDEO; 96 1.2 gwr else 97 1.2 gwr ena &= ~ENA_VIDEO; 98 1.2 gwr 99 1.2 gwr *enable_reg = ena; 100 1.2 gwr splx(s); 101 1.2 gwr } 102 1.2 gwr 103
Indexes created Tue Sep 30 20:09:53 GMT 2025