1 /* $NetBSD: ioblix_zbus.c,v 1.6 2002/01/28 09:56:59 aymeric 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 1.6 2002/01/28 09:56:59 aymeric 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 #include <machine/conf.h> 54 55 #include <amiga/include/cpu.h> 56 57 #include <amiga/amiga/device.h> 58 #include <amiga/amiga/drcustom.h> 59 60 #include <amiga/dev/supio.h> 61 #include <amiga/dev/zbusvar.h> 62 63 64 struct iobz_softc { 65 struct device sc_dev; 66 struct bus_space_tag sc_bst; 67 }; 68 69 int iobzmatch(struct device *, struct cfdata *, void *); 70 void iobzattach(struct device *, struct device *, void *); 71 int iobzprint(void *auxp, const char *); 72 void iobz_shutdown(void *); 73 74 struct cfattach iobl_zbus_ca = { 75 sizeof(struct iobz_softc), iobzmatch, iobzattach 76 }; 77 78 int 79 iobzmatch(struct device *parent, struct cfdata *cfp, void *auxp) 80 { 81 82 struct zbus_args *zap; 83 84 zap = auxp; 85 86 if (zap->manid != 4711) 87 return (0); 88 89 if (zap->prodid != 1) 90 return (0); 91 92 return (1); 93 } 94 95 struct iobz_devs { 96 char *name; 97 unsigned off; 98 int arg; 99 } iobzdevices[] = { 100 { "com", 0x100, 24000000 }, /* XXX see below */ 101 { "com", 0x108, 24000000 }, 102 { "com", 0x110, 24000000 }, 103 { "com", 0x118, 24000000 }, 104 { "lpt", 0x200, 0 }, 105 { "lpt", 0x300, 0 }, 106 { 0, 0, 0} 107 }; 108 109 #ifndef IOBZCLOCK 110 #define IOBZCLOCK 22118400; 111 #endif 112 int iobzclock = IOBZCLOCK; /* patchable! */ 113 114 void 115 iobzattach(struct device *parent, struct device *self, void *auxp) 116 { 117 struct iobz_softc *iobzsc; 118 struct iobz_devs *iobzd; 119 struct zbus_args *zap; 120 struct supio_attach_args supa; 121 extern const struct amiga_bus_space_methods amiga_bus_stride_16; 122 volatile u_int8_t *p; 123 124 125 iobzsc = (struct iobz_softc *)self; 126 zap = auxp; 127 128 if (parent) 129 printf("\n"); 130 131 iobzsc->sc_bst.base = (u_long)zap->va; 132 iobzsc->sc_bst.absm = &amiga_bus_stride_16; 133 134 supa.supio_iot = &iobzsc->sc_bst; 135 supa.supio_ipl = 6; 136 137 iobzd = iobzdevices; 138 139 while (iobzd->name) { 140 supa.supio_name = iobzd->name; 141 supa.supio_iobase = iobzd->off; 142 supa.supio_arg = iobzclock /* XXX iobzd->arg */; 143 config_found(self, &supa, iobzprint); /* XXX */ 144 ++iobzd; 145 } 146 147 p = (volatile u_int8_t *)zap->va + 2; 148 (void)shutdownhook_establish(iobz_shutdown, (void *)p); 149 *p = ((*p) & 0x1F) | 0x80; 150 } 151 152 int 153 iobzprint(void *auxp, const char *pnp) 154 { 155 struct supio_attach_args *supa; 156 supa = auxp; 157 158 if (pnp == NULL) 159 return(QUIET); 160 161 printf("%s at %s port 0x%02x", 162 supa->supio_name, pnp, supa->supio_iobase); 163 164 return(UNCONF); 165 } 166 167 /* 168 * Disable board interupts at shutdown time. 169 */ 170 171 void 172 iobz_shutdown(void *p) { 173 volatile int8_t *q; 174 175 q = p; 176 177 *q &= 0x1F; 178 } 179