1 /* $NetBSD: gvpio.c,v 1.5 2000/01/23 21:06:12 aymeric Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Ignatios Souvatzis 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Ignatios Souvatzis 18 * for the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * GVP I/O Extender 36 */ 37 38 #include <sys/types.h> 39 40 #include <sys/conf.h> 41 #include <sys/device.h> 42 #include <sys/systm.h> 43 #include <sys/param.h> 44 45 #include <machine/bus.h> 46 #include <machine/conf.h> 47 #include <machine/intr.h> 48 49 #include <amiga/include/cpu.h> 50 51 #include <amiga/amiga/device.h> 52 #include <amiga/amiga/drcustom.h> 53 54 #include <amiga/dev/supio.h> 55 #include <amiga/dev/zbusvar.h> 56 #include <amiga/dev/gvpbusvar.h> 57 #include <amiga/dev/gvpiovar.h> 58 59 struct gvpio_softc { 60 struct device sc_dev; 61 struct bus_space_tag sc_bst; 62 caddr_t sc_cntr; 63 LIST_HEAD(, gvpcom_int_hdl) sc_comhdls; 64 struct isr sc_comisr; 65 }; 66 67 int gvpiomatch __P((struct device *, struct cfdata *, void *)); 68 void gvpioattach __P((struct device *, struct device *, void *)); 69 int gvpioprint __P((void *auxp, const char *)); 70 int gvp_com_intr __P((void *)); 71 72 struct cfattach gvpio_ca = { 73 sizeof(struct gvpio_softc), gvpiomatch, gvpioattach 74 }; 75 76 int 77 gvpiomatch(parent, cfp, auxp) 78 struct device *parent; 79 struct cfdata *cfp; 80 void *auxp; 81 { 82 83 struct gvpbus_args *gap; 84 85 gap = auxp; 86 87 if (gap->flags & GVP_IO) 88 return (1); 89 90 return (0); 91 } 92 93 struct gvpio_devs { 94 char *name; 95 int off; 96 int arg; 97 int ipl; 98 } gvpiodevs[] = { 99 { "com", 0x0b0, 115200 * 16 * 4, 6 }, 100 { "com", 0x130, 115200 * 16 * 4, 6 }, 101 { "lpt", 0x1b0, 0, 2 }, 102 { 0 } 103 }; 104 105 void 106 gvpioattach(parent, self, auxp) 107 struct device *parent, *self; 108 void *auxp; 109 { 110 struct gvpio_softc *giosc; 111 struct gvpio_devs *giosd; 112 struct gvpbus_args *gap; 113 struct supio_attach_args supa; 114 volatile caddr_t gbase; 115 u_int16_t needpsl; 116 117 giosc = (struct gvpio_softc *)self; 118 gap = auxp; 119 120 if (parent) 121 printf("\n"); 122 123 gbase = gap->zargs.va; 124 giosc->sc_cntr = &gbase[0x41]; 125 giosc->sc_bst.base = (u_long)gbase + 1; 126 giosc->sc_bst.absm = amiga_bus_stride_2; 127 LIST_INIT(&giosc->sc_comhdls); 128 giosd = gvpiodevs; 129 130 supa.supio_iot = &giosc->sc_bst; 131 132 gbase[0x041] = 0; 133 gbase[0x161 + 1*2] = 0; 134 gbase[0x261 + 1*2] = 0; 135 gbase[0x361 + 2*2] = 0; 136 gbase[0x461] = 0xd0; 137 138 while (giosd->name) { 139 supa.supio_name = giosd->name; 140 supa.supio_iobase = giosd->off; 141 supa.supio_arg = giosd->arg; 142 supa.supio_ipl = giosd->ipl; 143 config_found(self, &supa, gvpioprint); /* XXX */ 144 ++giosd; 145 } 146 if (giosc->sc_comhdls.lh_first) { 147 /* XXX this should be really in the interupt stuff */ 148 needpsl = PSL_S|PSL_IPL6; 149 if (amiga_serialspl < needpsl) { 150 printf("%s: raising amiga_serialspl from 0x%x to 0x%x\n", 151 giosc->sc_dev.dv_xname, amiga_serialspl, needpsl); 152 amiga_serialspl = needpsl; 153 } 154 giosc->sc_comisr.isr_intr = gvp_com_intr; 155 giosc->sc_comisr.isr_arg = giosc; 156 giosc->sc_comisr.isr_ipl = 6; 157 add_isr(&giosc->sc_comisr); 158 } 159 gbase[0x041] = 0x08; 160 } 161 162 int 163 gvpioprint(auxp, pnp) 164 void *auxp; 165 const char *pnp; 166 { 167 struct supio_attach_args *supa; 168 supa = auxp; 169 170 if (pnp == NULL) 171 return(QUIET); 172 173 printf("%s at %s port 0x%02x ipl %d", 174 supa->supio_name, pnp, supa->supio_iobase, supa->supio_ipl); 175 176 return(UNCONF); 177 } 178 179 void 180 gvp_com_intr_establish(self, p) 181 struct device *self; 182 struct gvpcom_int_hdl *p; 183 { 184 struct gvpio_softc *sc; 185 186 sc = (struct gvpio_softc *)self; 187 LIST_INSERT_HEAD(&sc->sc_comhdls, p, next); 188 189 } 190 191 int 192 gvp_com_intr(p) 193 void *p; 194 { 195 struct gvpio_softc *sc; 196 struct gvpcom_int_hdl *np; 197 volatile caddr_t cntr; 198 199 sc = (struct gvpio_softc *)p; 200 201 cntr = sc->sc_cntr; 202 203 if (!(*cntr & 0x2)) 204 return (0); 205 206 *cntr &= ~0xa; 207 208 for (np = sc->sc_comhdls.lh_first; np != NULL; 209 np = np->next.le_next) { 210 211 (*np->f)(np->p); 212 } 213 *cntr |= 0x8; 214 215 return (1); 216 } 217