1 /* $NetBSD: com_supio.c,v 1.22 2006/12/21 15:55:21 yamt 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 1.22 2006/12/21 15:55:21 yamt 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 *); 104 105 CFATTACH_DECL(com_supio, sizeof(struct comsupio_softc), 106 com_supio_match, com_supio_attach, NULL, NULL); 107 108 int 109 com_supio_match(struct device *parent, struct cfdata *match, void *aux) 110 { 111 int rv = 1; 112 struct supio_attach_args *supa = aux; 113 114 if (strcmp(supa->supio_name,"com")) 115 return 0; 116 117 return (rv); 118 } 119 120 void 121 com_supio_attach(struct device *parent, struct device *self, void *aux) 122 { 123 struct comsupio_softc *sc = (void *)self; 124 struct com_softc *csc = &sc->sc_com; 125 int iobase; 126 bus_space_tag_t iot; 127 bus_space_handle_t ioh; 128 struct supio_attach_args *supa = aux; 129 u_int16_t needpsl; 130 131 /* 132 * We're living on a superio chip. 133 */ 134 iobase = supa->supio_iobase; 135 iot = supa->supio_iot; 136 printf(" port 0x%04x ipl %d", iobase, supa->supio_ipl); 137 138 if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) 139 panic("comattach: io mapping failed"); 140 COM_INIT_REGS(csc->sc_regs, iot, ioh, iobase); 141 142 csc->sc_frequency = supa->supio_arg; 143 144 com_attach_subr(csc); 145 146 /* XXX this should be really in the interrupt stuff */ 147 needpsl = PSL_S | (supa->supio_ipl << 8); 148 149 if (ipl2spl_table[IPL_SERIAL] < needpsl) { 150 printf("%s: raising ipl2spl_table[IPL_SERIAL] from " 151 "0x%x to 0x%x\n", 152 csc->sc_dev.dv_xname, ipl2spl_table[IPL_SERIAL], needpsl); 153 ipl2spl_table[IPL_SERIAL] = needpsl; 154 } 155 sc->sc_isr.isr_intr = comintr; 156 sc->sc_isr.isr_arg = csc; 157 sc->sc_isr.isr_ipl = supa->supio_ipl; 158 add_isr(&sc->sc_isr); 159 160 /* 161 * Shutdown hook for buggy BIOSs that don't recognize the UART 162 * without a disabled FIFO. 163 */ 164 if (shutdownhook_establish(com_cleanup, csc) == NULL) 165 panic("comsupio: could not establish shutdown hook"); 166 } 167