gvpio.c revision 1.7
1 /* $NetBSD: gvpio.c,v 1.7 2002/01/26 13:40:56 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 58 struct gvpio_softc { 59 struct device sc_dev; 60 struct bus_space_tag sc_bst; 61 caddr_t sc_cntr; 62 LIST_HEAD(, gvpcom_int_hdl) sc_comhdls; 63 struct isr sc_comisr; 64 }; 65 66 int gvpiomatch(struct device *, struct cfdata *, void *); 67 void gvpioattach(struct device *, struct device *, void *); 68 int gvpioprint(void *auxp, const char *); 69 int gvp_com_intr(void *); 70 void gvp_com_intr_establish(struct device *, struct gvpcom_int_hdl *); 71 72 struct cfattach gvpio_ca = { 73 sizeof(struct gvpio_softc), gvpiomatch, gvpioattach 74 }; 75 76 int 77 gvpiomatch(struct device *parent, struct cfdata *cfp, void *auxp) 78 { 79 80 struct gvpbus_args *gap; 81 82 gap = auxp; 83 84 if (gap->flags & GVP_IO) 85 return (1); 86 87 return (0); 88 } 89 90 struct gvpio_devs { 91 char *name; 92 int off; 93 int arg; 94 int ipl; 95 } gvpiodevs[] = { 96 { "com", 0x0b0, 115200 * 16 * 4, 6 }, 97 { "com", 0x130, 115200 * 16 * 4, 6 }, 98 { "lpt", 0x1b0, 0, 2 }, 99 { 0 } 100 }; 101 102 void 103 gvpioattach(struct device *parent, struct device *self, void *auxp) 104 { 105 struct gvpio_softc *giosc; 106 struct gvpio_devs *giosd; 107 struct gvpbus_args *gap; 108 struct supio_attach_args supa; 109 volatile caddr_t gbase; 110 u_int16_t needpsl; 111 112 giosc = (struct gvpio_softc *)self; 113 gap = auxp; 114 115 if (parent) 116 printf("\n"); 117 118 gbase = gap->zargs.va; 119 giosc->sc_cntr = &gbase[0x41]; 120 giosc->sc_bst.base = (u_long)gbase + 1; 121 giosc->sc_bst.absm = &amiga_bus_stride_2; 122 LIST_INIT(&giosc->sc_comhdls); 123 giosd = gvpiodevs; 124 125 supa.supio_iot = &giosc->sc_bst; 126 127 gbase[0x041] = 0; 128 gbase[0x161 + 1*2] = 0; 129 gbase[0x261 + 1*2] = 0; 130 gbase[0x361 + 2*2] = 0; 131 gbase[0x461] = 0xd0; 132 133 while (giosd->name) { 134 supa.supio_name = giosd->name; 135 supa.supio_iobase = giosd->off; 136 supa.supio_arg = giosd->arg; 137 supa.supio_ipl = giosd->ipl; 138 config_found(self, &supa, gvpioprint); /* XXX */ 139 ++giosd; 140 } 141 if (giosc->sc_comhdls.lh_first) { 142 /* XXX this should be really in the interupt stuff */ 143 needpsl = PSL_S|PSL_IPL6; 144 if (amiga_serialspl < needpsl) { 145 printf("%s: raising amiga_serialspl from 0x%x to 0x%x\n", 146 giosc->sc_dev.dv_xname, amiga_serialspl, needpsl); 147 amiga_serialspl = needpsl; 148 } 149 giosc->sc_comisr.isr_intr = gvp_com_intr; 150 giosc->sc_comisr.isr_arg = giosc; 151 giosc->sc_comisr.isr_ipl = 6; 152 add_isr(&giosc->sc_comisr); 153 } 154 gbase[0x041] = 0x08; 155 } 156 157 int 158 gvpioprint(void *auxp, const char *pnp) 159 { 160 struct supio_attach_args *supa; 161 supa = auxp; 162 163 if (pnp == NULL) 164 return(QUIET); 165 166 printf("%s at %s port 0x%02x ipl %d", 167 supa->supio_name, pnp, supa->supio_iobase, supa->supio_ipl); 168 169 return(UNCONF); 170 } 171 172 void 173 gvp_com_intr_establish(struct device *self, struct gvpcom_int_hdl *p) { 174 { 175 struct gvpio_softc *sc; 176 177 sc = (struct gvpio_softc *)self; 178 LIST_INSERT_HEAD(&sc->sc_comhdls, p, next); 179 180 } 181 182 int 183 gvp_com_intr(void *p) 184 { 185 struct gvpio_softc *sc; 186 struct gvpcom_int_hdl *np; 187 volatile caddr_t cntr; 188 189 sc = (struct gvpio_softc *)p; 190 191 cntr = sc->sc_cntr; 192 193 if (!(*cntr & 0x2)) 194 return (0); 195 196 *cntr &= ~0xa; 197 198 for (np = sc->sc_comhdls.lh_first; np != NULL; 199 np = np->next.le_next) { 200 201 (*np->f)(np->p); 202 } 203 *cntr |= 0x8; 204 205 return (1); 206 } 207
Indexes created Wed Sep 24 05:09:52 GMT 2025