1 /* $NetBSD: com_jensenio.c,v 1.14 2014/03/21 16:39:29 christos 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 * 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 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 33 34 __KERNEL_RCSID(0, "$NetBSD: com_jensenio.c,v 1.14 2014/03/21 16:39:29 christos Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/ioctl.h> 39 #include <sys/select.h> 40 #include <sys/tty.h> 41 #include <sys/proc.h> 42 #include <sys/conf.h> 43 #include <sys/file.h> 44 #include <sys/uio.h> 45 #include <sys/kernel.h> 46 #include <sys/syslog.h> 47 #include <sys/types.h> 48 #include <sys/device.h> 49 50 #include <machine/intr.h> 51 #include <sys/bus.h> 52 53 #include <dev/ic/comreg.h> 54 #include <dev/ic/comvar.h> 55 56 #include <dev/eisa/eisavar.h> 57 58 #include <dev/isa/isavar.h> 59 60 #include <alpha/jensenio/jenseniovar.h> 61 62 struct com_jensenio_softc { 63 struct com_softc sc_com; /* real "com" softc */ 64 65 /* Jensen-specific goo. */ 66 char sc_vecstr[8]; 67 struct evcnt sc_ev_intr; 68 }; 69 70 int com_jensenio_match(device_t, cfdata_t , void *); 71 void com_jensenio_attach(device_t, device_t, void *); 72 73 CFATTACH_DECL_NEW(com_jensenio, sizeof(struct com_jensenio_softc), 74 com_jensenio_match, com_jensenio_attach, NULL, NULL); 75 76 void com_jensenio_intr(void *, u_long); 77 78 int 79 com_jensenio_match(device_t parent, cfdata_t match, void *aux) 80 { 81 struct jensenio_attach_args *ja = aux; 82 83 /* Always present. */ 84 if (strcmp(ja->ja_name, match->cf_name) == 0) 85 return (1); 86 87 return (0); 88 } 89 90 void 91 com_jensenio_attach(device_t parent, device_t self, void *aux) 92 { 93 struct com_jensenio_softc *jsc = device_private(self); 94 struct com_softc *sc = &jsc->sc_com; 95 struct jensenio_attach_args *ja = aux; 96 bus_space_handle_t ioh; 97 98 sc->sc_dev = self; 99 if (com_is_console(ja->ja_iot, ja->ja_ioaddr, &ioh) == 0 && 100 bus_space_map(ja->ja_iot, ja->ja_ioaddr, COM_NPORTS, 0, 101 &ioh) != 0) { 102 aprint_error(": can't map i/o space\n"); 103 return; 104 } 105 COM_INIT_REGS(sc->sc_regs, ja->ja_iot, ioh, ja->ja_ioaddr); 106 107 sc->sc_frequency = COM_FREQ; 108 109 com_attach_subr(sc); 110 111 scb_set(ja->ja_irq[0], com_jensenio_intr, jsc, IPL_VM); 112 aprint_normal_dev(self, "interrupting at vector 0x%x\n", 113 ja->ja_irq[0]); 114 115 snprintf(jsc->sc_vecstr, sizeof(jsc->sc_vecstr), "0x%x", ja->ja_irq[0]); 116 evcnt_attach_dynamic(&jsc->sc_ev_intr, EVCNT_TYPE_INTR, 117 NULL, "vector", jsc->sc_vecstr); 118 119 if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) { 120 aprint_error_dev(self, "could not establish shutdown hook"); 121 } 122 } 123 124 void 125 com_jensenio_intr(void *arg, u_long vec) 126 { 127 struct com_jensenio_softc *jsc = arg; 128 129 jsc->sc_ev_intr.ev_count++; 130 (void) comintr(&jsc->sc_com); 131 } 132