1 /* $NetBSD: com_obio.c,v 1.8 2008/04/28 20:23:17 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 /*- 33 * Copyright (c) 1991 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)com.c 7.5 (Berkeley) 5/16/91 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.8 2008/04/28 20:23:17 martin Exp $"); 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/ioctl.h> 69 #include <sys/select.h> 70 #include <sys/tty.h> 71 #include <sys/proc.h> 72 #include <sys/user.h> 73 #include <sys/conf.h> 74 #include <sys/file.h> 75 #include <sys/uio.h> 76 #include <sys/kernel.h> 77 #include <sys/syslog.h> 78 #include <sys/types.h> 79 #include <sys/device.h> 80 #include <sys/termios.h> 81 82 #include <machine/bus.h> 83 #include <machine/intr.h> 84 85 #include <dev/ic/comreg.h> 86 #include <dev/ic/comvar.h> 87 88 #include <dev/marvell/gtvar.h> 89 90 struct com_obio_softc { 91 struct com_softc osc_com; /* real "com" softc */ 92 93 /* OBIO-specific goo. */ 94 }; 95 96 static int com_obio_match (device_t, cfdata_t , void *); 97 static void com_obio_attach (device_t, device_t, void *); 98 99 CFATTACH_DECL_NEW(com_obio, sizeof(struct com_obio_softc), 100 com_obio_match, com_obio_attach, NULL, NULL); 101 102 int 103 com_obio_match(device_t parent, cfdata_t cf, void *aux) 104 { 105 struct obio_attach_args *oa = aux; 106 bus_space_handle_t ioh; 107 int rv = 0; 108 109 if (oa->oa_offset == OBIO_UNK_OFFSET || 110 oa->oa_size == OBIO_UNK_SIZE) 111 return (0); 112 113 if (com_is_console(oa->oa_memt, oa->oa_offset, NULL)) { 114 rv = 1; 115 } else { 116 if (bus_space_map(oa->oa_memt, oa->oa_offset, 117 oa->oa_size, 0, &ioh)) 118 return (0); 119 rv = comprobe1(oa->oa_memt, ioh); 120 bus_space_unmap(oa->oa_memt, ioh, oa->oa_size); 121 } 122 123 return (rv); 124 } 125 126 void 127 com_obio_attach(device_t parent, device_t self, void *aux) 128 { 129 struct com_obio_softc *osc = device_private(self); 130 struct com_softc *sc = &osc->osc_com; 131 struct obio_attach_args *oa = aux; 132 bus_space_handle_t ioh; 133 134 sc->sc_dev = self; 135 sc->sc_frequency = COM_FREQ*2; 136 137 if (!com_is_console(oa->oa_memt, oa->oa_offset, &ioh) && 138 bus_space_map(oa->oa_memt, oa->oa_offset, oa->oa_size, 139 0, &ioh) != 0) { 140 aprint_error(": can't map registers\n"); 141 return; 142 } 143 144 COM_INIT_REGS(sc->sc_regs, oa->oa_memt, ioh, oa->oa_offset); 145 sc->sc_regs.cr_nports = oa->oa_size; 146 com_attach_subr(sc); 147 148 if (oa->oa_irq >= 0) { 149 intr_establish(oa->oa_irq, IST_EDGE, IPL_SERIAL, comintr, sc); 150 aprint_normal_dev(self, "interrupting at %s\n", 151 intr_string(oa->oa_irq)); 152 } 153 } 154