1 /* $NetBSD: auxio_sbus.c,v 1.1 2015/10/06 16:40:36 martin Exp $ */ 2 3 /* 4 * Copyright (c) 2000, 2001, 2015 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * AUXIO registers support on the sbus & ebus2, used for the floppy driver 31 * and to control the system LED, for the BLINK option. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: auxio_sbus.c,v 1.1 2015/10/06 16:40:36 martin Exp $"); 36 37 #include "opt_auxio.h" 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/callout.h> 43 #include <sys/errno.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 47 #include <machine/autoconf.h> 48 #include <machine/cpu.h> 49 50 #include <dev/ebus/ebusreg.h> 51 #include <dev/ebus/ebusvar.h> 52 #include <dev/sbus/sbusvar.h> 53 #include <sparc64/dev/auxioreg.h> 54 #include <sparc64/dev/auxiovar.h> 55 56 static int auxio_sbus_match(device_t, cfdata_t, void *); 57 static void auxio_sbus_attach(device_t, device_t, void *); 58 59 CFATTACH_DECL_NEW(auxio_sbus, sizeof(struct auxio_softc), 60 auxio_sbus_match, auxio_sbus_attach, NULL, NULL); 61 62 static int 63 auxio_sbus_match(device_t parent, cfdata_t cf, void *aux) 64 { 65 struct sbus_attach_args *sa = aux; 66 67 return strcmp(AUXIO_ROM_NAME, sa->sa_name) == 0; 68 } 69 70 static void 71 auxio_sbus_attach(device_t parent, device_t self, void *aux) 72 { 73 struct auxio_softc *sc = device_private(self); 74 struct sbus_attach_args *sa = aux; 75 76 sc->sc_dev = self; 77 sc->sc_tag = sa->sa_bustag; 78 79 if (sa->sa_nreg < 1) { 80 printf(": no registers??\n"); 81 return; 82 } 83 84 if (sa->sa_nreg != 1) { 85 printf(": not 1 (%d/%d) registers??", sa->sa_nreg, 86 sa->sa_npromvaddrs); 87 return; 88 } 89 90 /* sbus auxio only has one set of registers */ 91 sc->sc_flags = AUXIO_LEDONLY; 92 if (sa->sa_npromvaddrs > 0) { 93 sbus_promaddr_to_handle(sc->sc_tag, 94 sa->sa_promvaddr, &sc->sc_led); 95 } else { 96 sbus_bus_map(sc->sc_tag, sa->sa_slot, sa->sa_offset, 97 sa->sa_size, 0, &sc->sc_led); 98 } 99 100 auxio_attach_common(sc); 101 } 102