1 /* $NetBSD: ioblix_zbus.c,v 1.9 2002/10/02 04:55:51 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ignatios Souvatzis. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: ioblix_zbus.c,v 1.9 2002/10/02 04:55:51 thorpej Exp $"); 41 42 /* IOBlix Zorro driver */ 43 /* XXX to be done: we need to probe the com clock speed! */ 44 45 #include <sys/types.h> 46 47 #include <sys/conf.h> 48 #include <sys/device.h> 49 #include <sys/systm.h> 50 #include <sys/param.h> 51 52 #include <machine/bus.h> 53 54 #include <amiga/include/cpu.h> 55 56 #include <amiga/amiga/device.h> 57 #include <amiga/amiga/drcustom.h> 58 59 #include <amiga/dev/supio.h> 60 #include <amiga/dev/zbusvar.h> 61 62 63 struct iobz_softc { 64 struct device sc_dev; 65 struct bus_space_tag sc_bst; 66 }; 67 68 int iobzmatch(struct device *, struct cfdata *, void *); 69 void iobzattach(struct device *, struct device *, void *); 70 int iobzprint(void *auxp, const char *); 71 void iobz_shutdown(void *); 72 73 CFATTACH_DECL(iobl_zbus, sizeof(struct iobz_softc), 74 iobzmatch, iobzattach, NULL, NULL); 75 76 int 77 iobzmatch(struct device *parent, struct cfdata *cfp, void *auxp) 78 { 79 80 struct zbus_args *zap; 81 82 zap = auxp; 83 84 if (zap->manid != 4711) 85 return (0); 86 87 if (zap->prodid != 1) 88 return (0); 89 90 return (1); 91 } 92 93 struct iobz_devs { 94 char *name; 95 unsigned off; 96 int arg; 97 } iobzdevices[] = { 98 { "com", 0x100, 24000000 }, /* XXX see below */ 99 { "com", 0x108, 24000000 }, 100 { "com", 0x110, 24000000 }, 101 { "com", 0x118, 24000000 }, 102 { "lpt", 0x200, 0 }, 103 { "lpt", 0x300, 0 }, 104 { 0, 0, 0} 105 }; 106 107 #ifndef IOBZCLOCK 108 #define IOBZCLOCK 22118400; 109 #endif 110 int iobzclock = IOBZCLOCK; /* patchable! */ 111 112 void 113 iobzattach(struct device *parent, struct device *self, void *auxp) 114 { 115 struct iobz_softc *iobzsc; 116 struct iobz_devs *iobzd; 117 struct zbus_args *zap; 118 struct supio_attach_args supa; 119 extern const struct amiga_bus_space_methods amiga_bus_stride_16; 120 volatile u_int8_t *p; 121 122 123 iobzsc = (struct iobz_softc *)self; 124 zap = auxp; 125 126 if (parent) 127 printf("\n"); 128 129 iobzsc->sc_bst.base = (u_long)zap->va; 130 iobzsc->sc_bst.absm = &amiga_bus_stride_16; 131 132 supa.supio_iot = &iobzsc->sc_bst; 133 supa.supio_ipl = 6; 134 135 iobzd = iobzdevices; 136 137 while (iobzd->name) { 138 supa.supio_name = iobzd->name; 139 supa.supio_iobase = iobzd->off; 140 supa.supio_arg = iobzclock /* XXX iobzd->arg */; 141 config_found(self, &supa, iobzprint); /* XXX */ 142 ++iobzd; 143 } 144 145 p = (volatile u_int8_t *)zap->va + 2; 146 (void)shutdownhook_establish(iobz_shutdown, (void *)p); 147 *p = ((*p) & 0x1F) | 0x80; 148 } 149 150 int 151 iobzprint(void *auxp, const char *pnp) 152 { 153 struct supio_attach_args *supa; 154 supa = auxp; 155 156 if (pnp == NULL) 157 return(QUIET); 158 159 printf("%s at %s port 0x%02x", 160 supa->supio_name, pnp, supa->supio_iobase); 161 162 return(UNCONF); 163 } 164 165 /* 166 * Disable board interupts at shutdown time. 167 */ 168 169 void 170 iobz_shutdown(void *p) { 171 volatile int8_t *q; 172 173 q = p; 174 175 *q &= 0x1F; 176 } 177