1 /* $NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frederick S. Bruckman. 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 /* Store one "Usr" register on an SIIG Cyberserial multiport PCI card. */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/device.h> 46 #include <sys/termios.h> /* XXX for tcflag_t in comvar.h */ 47 48 #include <machine/bus.h> 49 50 #include <dev/pci/cyberreg.h> 51 #include <dev/pci/cybervar.h> 52 53 void 54 write_siig10x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno, 55 int high_speed) 56 { 57 pcireg_t curregs, newregs; 58 59 newregs = curregs = pci_conf_read(pc, tag, SIIG10x_USR_BASE); 60 61 if (high_speed) /* Clear bit. */ 62 switch (usrregno) { 63 case 0: 64 newregs &= ~SIIG10x_USR0_MASK; 65 break; 66 case 1: 67 newregs &= ~SIIG10x_USR1_MASK; 68 break; 69 case 2: 70 newregs &= ~SIIG10x_USR2_MASK; 71 break; 72 case 3: 73 newregs &= ~SIIG10x_USR3_MASK; 74 } 75 else /* if (!high_speed) */ /* Set bit. */ 76 switch (usrregno) { 77 case 0: 78 newregs |= SIIG10x_USR0_MASK; 79 break; 80 case 1: 81 newregs |= SIIG10x_USR1_MASK; 82 break; 83 case 2: 84 newregs |= SIIG10x_USR2_MASK; 85 break; 86 case 3: 87 newregs |= SIIG10x_USR3_MASK; 88 } 89 90 if (newregs != curregs) 91 pci_conf_write(pc, tag, SIIG10x_USR_BASE, newregs); 92 } 93 94 void 95 write_siig20x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno, 96 int high_speed) 97 { 98 pcireg_t curreg, newreg; 99 int offset; 100 101 switch (usrregno) { 102 case 0: 103 offset = SIIG20x_USR0; 104 break; 105 case 1: 106 offset = SIIG20x_USR1; 107 break; 108 default: 109 return; 110 } 111 112 newreg = curreg = pci_conf_read(pc, tag, offset); 113 114 if (high_speed) /* Clear bit. */ 115 newreg &= ~SIIG20x_USR_MASK; 116 else /* if (!high_speed) */ /* Set bit. */ 117 newreg |= SIIG20x_USR_MASK; 118 119 if (newreg != curreg) 120 pci_conf_write(pc, tag, offset, newreg); 121 } 122