1 /* $NetBSD: com_obio.c,v 1.5 2011/07/01 20:39:34 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas <matt@3am-software.com>. 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> 33 __KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.5 2011/07/01 20:39:34 dyoung Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/termios.h> 39 40 #include <sys/bus.h> 41 42 #include <arm/xscale/i80321var.h> 43 44 #include <evbarm/hdl_g/obiovar.h> 45 46 #include <dev/ic/comreg.h> 47 #include <dev/ic/comvar.h> 48 49 struct com_obio_softc { 50 struct com_softc sc_com; 51 52 void *sc_ih; 53 }; 54 55 int com_obio_match(device_t, cfdata_t , void *); 56 void com_obio_attach(device_t, device_t, void *); 57 58 CFATTACH_DECL_NEW(com_obio, sizeof(struct com_obio_softc), 59 com_obio_match, com_obio_attach, NULL, NULL); 60 61 int 62 com_obio_match(device_t parent, cfdata_t cf, void *aux) 63 { 64 65 /* We take it on faith that the device is there. */ 66 return 1; 67 } 68 69 void 70 com_obio_attach(device_t parent, device_t self, void *aux) 71 { 72 struct obio_attach_args *oba = aux; 73 struct com_obio_softc *osc = device_private(self); 74 struct com_softc *sc = &osc->sc_com; 75 bus_space_handle_t ioh; 76 int error; 77 78 sc->sc_dev = self; 79 sc->sc_frequency = COM_FREQ; 80 sc->sc_hwflags = COM_HW_NO_TXPRELOAD; 81 error = bus_space_map(oba->oba_st, oba->oba_addr, 8, 0, &ioh); 82 COM_INIT_REGS(sc->sc_regs, oba->oba_st, ioh, oba->oba_addr); 83 84 if (error) { 85 aprint_error(": failed to map registers: %d\n", error); 86 return; 87 } 88 89 com_attach_subr(sc); 90 91 osc->sc_ih = i80321_intr_establish(oba->oba_irq, IPL_SERIAL, 92 comintr, sc); 93 if (osc->sc_ih == NULL) 94 aprint_error_dev(self, 95 "unable to establish interrupt at irq %d\n", oba->oba_irq); 96 } 97