1 /* $NetBSD: com_supio.c,v 1.20 2005/12/11 12:16:28 christos 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 * 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 /*- 40 * Copyright (c) 1991 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)com.c 7.5 (Berkeley) 5/16/91 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: com_supio.c,v 1.20 2005/12/11 12:16:28 christos Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/ioctl.h> 76 #include <sys/select.h> 77 #include <sys/tty.h> 78 #include <sys/proc.h> 79 #include <sys/user.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/uio.h> 83 #include <sys/kernel.h> 84 #include <sys/syslog.h> 85 #include <sys/types.h> 86 #include <sys/device.h> 87 88 #include <machine/intr.h> 89 #include <machine/bus.h> 90 91 /*#include <dev/isa/isavar.h>*/ 92 #include <dev/ic/comreg.h> 93 #include <dev/ic/comvar.h> 94 95 #include <amiga/dev/supio.h> 96 97 struct comsupio_softc { 98 struct com_softc sc_com; 99 struct isr sc_isr; 100 }; 101 102 int com_supio_match(struct device *, struct cfdata *, void *); 103 void com_supio_attach(struct device *, struct device *, void *); 104 void com_supio_cleanup(void *); 105 106 #if 0 107 static int comconsaddr; 108 static bus_space_handle_t comconsioh; 109 static int comconsattached; 110 static bus_space_tag_t comconstag; 111 static int comconsrate; 112 static tcflag_t comconscflag; 113 #endif 114 115 CFATTACH_DECL(com_supio, sizeof(struct comsupio_softc), 116 com_supio_match, com_supio_attach, NULL, NULL); 117 118 int 119 com_supio_match(struct device *parent, struct cfdata *match, void *aux) 120 { 121 bus_space_tag_t iot; 122 int iobase; 123 int rv = 1; 124 struct supio_attach_args *supa = aux; 125 126 iot = supa->supio_iot; 127 iobase = supa->supio_iobase; 128 129 if (strcmp(supa->supio_name,"com")) 130 return 0; 131 132 return (rv); 133 } 134 135 void 136 com_supio_attach(struct device *parent, struct device *self, void *aux) 137 { 138 struct comsupio_softc *sc = (void *)self; 139 struct com_softc *csc = &sc->sc_com; 140 int iobase; 141 bus_space_tag_t iot; 142 struct supio_attach_args *supa = aux; 143 u_int16_t needpsl; 144 145 /* 146 * We're living on a superio chip. 147 */ 148 iobase = csc->sc_iobase = supa->supio_iobase; 149 iot = csc->sc_iot = supa->supio_iot; 150 printf(" port 0x%04x ipl %d", iobase, supa->supio_ipl); 151 152 if (bus_space_map(iot, iobase, COM_NPORTS, 0, &csc->sc_ioh)) 153 panic("comattach: io mapping failed"); 154 155 csc->sc_frequency = supa->supio_arg; 156 157 com_attach_subr(csc); 158 159 /* XXX this should be really in the interrupt stuff */ 160 needpsl = PSL_S | (supa->supio_ipl << 8); 161 162 if (amiga_serialspl < needpsl) { 163 printf("%s: raising amiga_serialspl from 0x%x to 0x%x\n", 164 csc->sc_dev.dv_xname, amiga_serialspl, needpsl); 165 amiga_serialspl = needpsl; 166 } 167 sc->sc_isr.isr_intr = comintr; 168 sc->sc_isr.isr_arg = csc; 169 sc->sc_isr.isr_ipl = supa->supio_ipl; 170 add_isr(&sc->sc_isr); 171 172 /* 173 * Shutdown hook for buggy BIOSs that don't recognize the UART 174 * without a disabled FIFO. 175 */ 176 if (shutdownhook_establish(com_supio_cleanup, csc) == NULL) 177 panic("comsupio: could not establish shutdown hook"); 178 } 179 180 void 181 com_supio_cleanup(void *arg) 182 { 183 struct com_softc *sc = arg; 184 185 if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) 186 bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); 187 } 188