1 /* $NetBSD: com_sableio.c,v 1.8 2008/04/28 20:23:12 martin 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_sableio.c,v 1.8 2008/04/28 20:23:12 martin 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/user.h> 43 #include <sys/conf.h> 44 #include <sys/file.h> 45 #include <sys/uio.h> 46 #include <sys/kernel.h> 47 #include <sys/syslog.h> 48 #include <sys/types.h> 49 #include <sys/device.h> 50 51 #include <machine/intr.h> 52 #include <machine/bus.h> 53 54 #include <dev/ic/comreg.h> 55 #include <dev/ic/comvar.h> 56 57 #include <dev/pci/pcivar.h> 58 #include <dev/isa/isavar.h> 59 60 #include <alpha/sableio/sableiovar.h> 61 62 struct com_sableio_softc { 63 struct com_softc sc_com; /* real "com" softc */ 64 65 /* STDIO-specific goo. */ 66 void *sc_ih; /* interrupt handler */ 67 }; 68 69 int com_sableio_match(device_t, cfdata_t , void *); 70 void com_sableio_attach(device_t, device_t, void *); 71 72 CFATTACH_DECL_NEW(com_sableio, sizeof(struct com_sableio_softc), 73 com_sableio_match, com_sableio_attach, NULL, NULL); 74 75 int 76 com_sableio_match(device_t parent, cfdata_t match, void *aux) 77 { 78 struct sableio_attach_args *sa = aux; 79 80 /* Always present. */ 81 if (strcmp(sa->sa_name, match->cf_name) == 0) 82 return (1); 83 84 return (0); 85 } 86 87 void 88 com_sableio_attach(device_t parent, device_t self, void *aux) 89 { 90 struct com_sableio_softc *ssc = device_private(self); 91 struct com_softc *sc = &ssc->sc_com; 92 struct sableio_attach_args *sa = aux; 93 const char *intrstr; 94 bus_space_handle_t ioh; 95 96 sc->sc_dev = self; 97 if (com_is_console(sa->sa_iot, sa->sa_ioaddr, &ioh) == 0 && 98 bus_space_map(sa->sa_iot, sa->sa_ioaddr, COM_NPORTS, 0, 99 &ioh) != 0) { 100 aprint_error(": can't map i/o space\n"); 101 return; 102 } 103 COM_INIT_REGS(sc->sc_regs, sa->sa_iot, ioh, sa->sa_ioaddr); 104 105 sc->sc_frequency = COM_FREQ; 106 107 com_attach_subr(sc); 108 109 intrstr = pci_intr_string(sa->sa_pc, sa->sa_sableirq[0]); 110 ssc->sc_ih = pci_intr_establish(sa->sa_pc, sa->sa_sableirq[0], 111 IPL_SERIAL, comintr, sc); 112 if (ssc->sc_ih == NULL) { 113 aprint_error_dev(self, "unable to establish interrupt"); 114 if (intrstr != NULL) 115 aprint_normal(" at %s", intrstr); 116 aprint_normal("\n"); 117 return; 118 } 119 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 120 121 if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) { 122 aprint_error_dev(self, "could not establish shutdown hook"); 123 } 124 } 125