1 /* $NetBSD: com_jensenio.c,v 1.2 2001/07/27 00:25:19 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 40 41 __KERNEL_RCSID(0, "$NetBSD: com_jensenio.c,v 1.2 2001/07/27 00:25:19 thorpej Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/ioctl.h> 46 #include <sys/select.h> 47 #include <sys/tty.h> 48 #include <sys/proc.h> 49 #include <sys/user.h> 50 #include <sys/conf.h> 51 #include <sys/file.h> 52 #include <sys/uio.h> 53 #include <sys/kernel.h> 54 #include <sys/syslog.h> 55 #include <sys/types.h> 56 #include <sys/device.h> 57 58 #include <machine/intr.h> 59 #include <machine/bus.h> 60 61 #include <dev/ic/comreg.h> 62 #include <dev/ic/comvar.h> 63 64 #include <dev/eisa/eisavar.h> 65 66 #include <dev/isa/isavar.h> 67 68 #include <alpha/jensenio/jenseniovar.h> 69 70 struct com_jensenio_softc { 71 struct com_softc sc_com; /* real "com" softc */ 72 73 /* Jensen-specific goo. */ 74 char sc_vecstr[8]; 75 struct evcnt sc_ev_intr; 76 }; 77 78 int com_jensenio_match(struct device *, struct cfdata *, void *); 79 void com_jensenio_attach(struct device *, struct device *, void *); 80 void com_jensenio_cleanup(void *); 81 82 struct cfattach com_jensenio_ca = { 83 sizeof(struct com_jensenio_softc), com_jensenio_match, 84 com_jensenio_attach 85 }; 86 87 void com_jensenio_intr(void *, u_long); 88 89 int 90 com_jensenio_match(struct device *parent, struct cfdata *match, void *aux) 91 { 92 struct jensenio_attach_args *ja = aux; 93 94 /* Always present. */ 95 if (strcmp(ja->ja_name, match->cf_driver->cd_name) == 0) 96 return (1); 97 98 return (0); 99 } 100 101 void 102 com_jensenio_attach(struct device *parent, struct device *self, void *aux) 103 { 104 struct com_jensenio_softc *jsc = (void *)self; 105 struct com_softc *sc = &jsc->sc_com; 106 struct jensenio_attach_args *ja = aux; 107 108 sc->sc_iot = ja->ja_iot; 109 sc->sc_iobase = ja->ja_ioaddr; 110 111 if (com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh) == 0 && 112 bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS, 0, 113 &sc->sc_ioh) != 0) { 114 printf(": can't map i/o space\n"); 115 return; 116 } 117 118 sc->sc_frequency = COM_FREQ; 119 120 com_attach_subr(sc); 121 122 scb_set(ja->ja_irq[0], com_jensenio_intr, sc); 123 printf("%s: interrupting at vector 0x%x\n", 124 sc->sc_dev.dv_xname, ja->ja_irq[0]); 125 126 sprintf(jsc->sc_vecstr, "0x%x", ja->ja_irq[0]); 127 evcnt_attach_dynamic(&jsc->sc_ev_intr, EVCNT_TYPE_INTR, 128 NULL, "vector", jsc->sc_vecstr); 129 130 /* 131 * Shutdown hook for buggy BIOSs that don't recognize the UART 132 * without a disabled FIFO. 133 */ 134 if (shutdownhook_establish(com_jensenio_cleanup, sc) == NULL) 135 panic("com_jensenio_attach: could not establish shutdown hook"); 136 } 137 138 void 139 com_jensenio_intr(void *arg, u_long vec) 140 { 141 struct com_jensenio_softc *jsc = arg; 142 143 jsc->sc_ev_intr.ev_count++; 144 (void) comintr(&jsc->sc_com); 145 } 146 147 void 148 com_jensenio_cleanup(void *arg) 149 { 150 struct com_softc *sc = arg; 151 152 if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) 153 bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); 154 } 155