com_jensenio.c revision 1.2.2.2
1 1.2.2.2 nathanw /* $NetBSD: com_jensenio.c,v 1.2.2.2 2002/10/18 02:34:15 nathanw Exp $ */ 2 1.2.2.2 nathanw 3 1.2.2.2 nathanw /*- 4 1.2.2.2 nathanw * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.2.2.2 nathanw * All rights reserved. 6 1.2.2.2 nathanw * 7 1.2.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 nathanw * by Jason R. Thorpe. 9 1.2.2.2 nathanw * 10 1.2.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.2.2.2 nathanw * are met: 13 1.2.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.2.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.2.2.2 nathanw * must display the following acknowledgement: 20 1.2.2.2 nathanw * This product includes software developed by the NetBSD 21 1.2.2.2 nathanw * Foundation, Inc. and its contributors. 22 1.2.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.2.2 nathanw * contributors may be used to endorse or promote products derived 24 1.2.2.2 nathanw * from this software without specific prior written permission. 25 1.2.2.2 nathanw * 26 1.2.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.2.2.2 nathanw */ 38 1.2.2.2 nathanw 39 1.2.2.2 nathanw #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 40 1.2.2.2 nathanw 41 1.2.2.2 nathanw __KERNEL_RCSID(0, "$NetBSD: com_jensenio.c,v 1.2.2.2 2002/10/18 02:34:15 nathanw Exp $"); 42 1.2.2.2 nathanw 43 1.2.2.2 nathanw #include <sys/param.h> 44 1.2.2.2 nathanw #include <sys/systm.h> 45 1.2.2.2 nathanw #include <sys/ioctl.h> 46 1.2.2.2 nathanw #include <sys/select.h> 47 1.2.2.2 nathanw #include <sys/tty.h> 48 1.2.2.2 nathanw #include <sys/proc.h> 49 1.2.2.2 nathanw #include <sys/user.h> 50 1.2.2.2 nathanw #include <sys/conf.h> 51 1.2.2.2 nathanw #include <sys/file.h> 52 1.2.2.2 nathanw #include <sys/uio.h> 53 1.2.2.2 nathanw #include <sys/kernel.h> 54 1.2.2.2 nathanw #include <sys/syslog.h> 55 1.2.2.2 nathanw #include <sys/types.h> 56 1.2.2.2 nathanw #include <sys/device.h> 57 1.2.2.2 nathanw 58 1.2.2.2 nathanw #include <machine/intr.h> 59 1.2.2.2 nathanw #include <machine/bus.h> 60 1.2.2.2 nathanw 61 1.2.2.2 nathanw #include <dev/ic/comreg.h> 62 1.2.2.2 nathanw #include <dev/ic/comvar.h> 63 1.2.2.2 nathanw 64 1.2.2.2 nathanw #include <dev/eisa/eisavar.h> 65 1.2.2.2 nathanw 66 1.2.2.2 nathanw #include <dev/isa/isavar.h> 67 1.2.2.2 nathanw 68 1.2.2.2 nathanw #include <alpha/jensenio/jenseniovar.h> 69 1.2.2.2 nathanw 70 1.2.2.2 nathanw struct com_jensenio_softc { 71 1.2.2.2 nathanw struct com_softc sc_com; /* real "com" softc */ 72 1.2.2.2 nathanw 73 1.2.2.2 nathanw /* Jensen-specific goo. */ 74 1.2.2.2 nathanw char sc_vecstr[8]; 75 1.2.2.2 nathanw struct evcnt sc_ev_intr; 76 1.2.2.2 nathanw }; 77 1.2.2.2 nathanw 78 1.2.2.2 nathanw int com_jensenio_match(struct device *, struct cfdata *, void *); 79 1.2.2.2 nathanw void com_jensenio_attach(struct device *, struct device *, void *); 80 1.2.2.2 nathanw void com_jensenio_cleanup(void *); 81 1.2.2.2 nathanw 82 1.2.2.2 nathanw CFATTACH_DECL(com_jensenio, sizeof(struct com_jensenio_softc), 83 1.2.2.2 nathanw com_jensenio_match, com_jensenio_attach, NULL, NULL); 84 1.2.2.2 nathanw 85 1.2.2.2 nathanw void com_jensenio_intr(void *, u_long); 86 1.2.2.2 nathanw 87 1.2.2.2 nathanw int 88 1.2.2.2 nathanw com_jensenio_match(struct device *parent, struct cfdata *match, void *aux) 89 1.2.2.2 nathanw { 90 1.2.2.2 nathanw struct jensenio_attach_args *ja = aux; 91 1.2.2.2 nathanw 92 1.2.2.2 nathanw /* Always present. */ 93 1.2.2.2 nathanw if (strcmp(ja->ja_name, match->cf_name) == 0) 94 1.2.2.2 nathanw return (1); 95 1.2.2.2 nathanw 96 1.2.2.2 nathanw return (0); 97 1.2.2.2 nathanw } 98 1.2.2.2 nathanw 99 1.2.2.2 nathanw void 100 1.2.2.2 nathanw com_jensenio_attach(struct device *parent, struct device *self, void *aux) 101 1.2.2.2 nathanw { 102 1.2.2.2 nathanw struct com_jensenio_softc *jsc = (void *)self; 103 1.2.2.2 nathanw struct com_softc *sc = &jsc->sc_com; 104 1.2.2.2 nathanw struct jensenio_attach_args *ja = aux; 105 1.2.2.2 nathanw 106 1.2.2.2 nathanw sc->sc_iot = ja->ja_iot; 107 1.2.2.2 nathanw sc->sc_iobase = ja->ja_ioaddr; 108 1.2.2.2 nathanw 109 1.2.2.2 nathanw if (com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh) == 0 && 110 1.2.2.2 nathanw bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS, 0, 111 1.2.2.2 nathanw &sc->sc_ioh) != 0) { 112 1.2.2.2 nathanw printf(": can't map i/o space\n"); 113 1.2.2.2 nathanw return; 114 1.2.2.2 nathanw } 115 1.2.2.2 nathanw 116 1.2.2.2 nathanw sc->sc_frequency = COM_FREQ; 117 1.2.2.2 nathanw 118 1.2.2.2 nathanw com_attach_subr(sc); 119 1.2.2.2 nathanw 120 1.2.2.2 nathanw scb_set(ja->ja_irq[0], com_jensenio_intr, sc); 121 1.2.2.2 nathanw printf("%s: interrupting at vector 0x%x\n", 122 1.2.2.2 nathanw sc->sc_dev.dv_xname, ja->ja_irq[0]); 123 1.2.2.2 nathanw 124 1.2.2.2 nathanw sprintf(jsc->sc_vecstr, "0x%x", ja->ja_irq[0]); 125 1.2.2.2 nathanw evcnt_attach_dynamic(&jsc->sc_ev_intr, EVCNT_TYPE_INTR, 126 1.2.2.2 nathanw NULL, "vector", jsc->sc_vecstr); 127 1.2.2.2 nathanw 128 1.2.2.2 nathanw /* 129 1.2.2.2 nathanw * Shutdown hook for buggy BIOSs that don't recognize the UART 130 1.2.2.2 nathanw * without a disabled FIFO. 131 1.2.2.2 nathanw */ 132 1.2.2.2 nathanw if (shutdownhook_establish(com_jensenio_cleanup, sc) == NULL) 133 1.2.2.2 nathanw panic("com_jensenio_attach: could not establish shutdown hook"); 134 1.2.2.2 nathanw } 135 1.2.2.2 nathanw 136 1.2.2.2 nathanw void 137 1.2.2.2 nathanw com_jensenio_intr(void *arg, u_long vec) 138 1.2.2.2 nathanw { 139 1.2.2.2 nathanw struct com_jensenio_softc *jsc = arg; 140 1.2.2.2 nathanw 141 1.2.2.2 nathanw jsc->sc_ev_intr.ev_count++; 142 1.2.2.2 nathanw (void) comintr(&jsc->sc_com); 143 1.2.2.2 nathanw } 144 1.2.2.2 nathanw 145 1.2.2.2 nathanw void 146 1.2.2.2 nathanw com_jensenio_cleanup(void *arg) 147 1.2.2.2 nathanw { 148 1.2.2.2 nathanw struct com_softc *sc = arg; 149 1.2.2.2 nathanw 150 1.2.2.2 nathanw if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) 151 1.2.2.2 nathanw bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); 152 1.2.2.2 nathanw } 153
Indexes created Wed Oct 29 09:09:48 GMT 2025