com_vrip.c revision 1.8
1 /* $NetBSD: com_vrip.c,v 1.8 2001/05/30 15:24:30 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 SASAKI Takesi. All rights reserved. 5 * Copyright (c) 1999 PocketBSD Project. 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 the PocketBSD project 18 * and its contributors. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 #include "opt_kgdb.h" 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/reboot.h> 43 44 #include <sys/termios.h> 45 46 #include <machine/intr.h> 47 #include <machine/bus.h> 48 49 #include <machine/platid.h> 50 #include <machine/platid_mask.h> 51 #include <machine/config_hook.h> 52 53 #include <hpcmips/vr/vr.h> 54 #include <hpcmips/vr/vripvar.h> 55 #include <hpcmips/vr/cmureg.h> 56 #include <hpcmips/vr/siureg.h> 57 58 #include <dev/ic/comvar.h> 59 #include <dev/ic/comreg.h> 60 61 #include "opt_vr41xx.h" 62 #include <hpcmips/vr/vrgiuvar.h> 63 #include <hpcmips/vr/com_vripvar.h> 64 65 #include "locators.h" 66 67 #define COMVRIPDEBUG 68 #ifdef COMVRIPDEBUG 69 int com_vrip_debug = 0; 70 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 71 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 72 #else 73 #define DPRINTF(arg) 74 #define VPRINTF(arg) if (bootverbose) printf arg; 75 #endif 76 77 struct com_vrip_softc { 78 struct com_softc sc_com; 79 int sc_pwctl; 80 }; 81 82 static int com_vrip_probe __P((struct device *, struct cfdata *, void *)); 83 static void com_vrip_attach __P((struct device *, struct device *, void *)); 84 static int com_vrip_common_probe __P((bus_space_tag_t iot, int iobase)); 85 int find_comenableport_from_cfdata __P((int *)); 86 87 void vrcmu_init __P((void)); 88 void vrcmu_supply __P((int)); 89 void vrcmu_mask __P((int)); 90 91 struct cfattach com_vrip_ca = { 92 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 93 }; 94 95 /* For serial console */ 96 extern struct cfdata cfdata[]; 97 int 98 find_comenableport_from_cfdata(int *port) 99 { 100 platid_mask_t mask; 101 struct cfdata *cf; 102 int id; 103 104 printf ("COM enable port: "); 105 for (cf = cfdata; cf->cf_driver; cf++) { 106 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 107 continue; 108 mask = PLATID_DEREF(cf->cf_loc[HPCIOIFCF_PLATFORM]); 109 id = cf->cf_loc[HPCIOIFCF_ID]; 110 if (platid_match(&platid, &mask) && 111 id == CONFIG_HOOK_POWERCONTROL_COM0) 112 goto found; 113 } 114 *port = -1; 115 printf ("not found\n"); 116 return (0); 117 found: 118 *port = cf->cf_loc[HPCIOIFCF_PORT]; 119 printf ("#%d\n", *port); 120 121 return (1); 122 } 123 124 int 125 com_vrip_cndb_attach(iot, iobase, rate, frequency, cflag, kgdb) 126 bus_space_tag_t iot; 127 int iobase; 128 int rate, frequency; 129 tcflag_t cflag; 130 int kgdb; 131 { 132 int port; 133 /* Platform dependent setting */ 134 __vrcmu_supply(CMUMSKSSIU | CMUMSKSIU, 1); 135 if (find_comenableport_from_cfdata(&port)) 136 __vrgiu_out(port, 1); 137 138 if (!com_vrip_common_probe(iot, iobase)) 139 return (EIO); /* I can't find appropriate error number. */ 140 #ifdef KGDB 141 if (kgdb) 142 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 143 else 144 #endif 145 return (comcnattach(iot, iobase, rate, frequency, cflag)); 146 } 147 148 static int 149 com_vrip_common_probe(iot, iobase) 150 bus_space_tag_t iot; 151 int iobase; 152 { 153 bus_space_handle_t ioh; 154 int rv; 155 156 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 157 printf(": can't map i/o space\n"); 158 return 0; 159 } 160 rv = comprobe1(iot, ioh); 161 bus_space_unmap(iot, ioh, 1); 162 return (rv); 163 } 164 165 static int 166 com_vrip_probe(parent, cf, aux) 167 struct device *parent; 168 struct cfdata *cf; 169 void *aux; 170 { 171 struct vrip_attach_args *va = aux; 172 bus_space_tag_t iot = va->va_iot; 173 int rv; 174 175 DPRINTF(("==com_vrip_probe")); 176 177 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 178 va->va_intr == VRIPCF_INTR_DEFAULT) { 179 printf(": need addr and intr.\n"); 180 return (0); 181 } 182 183 if (!va->va_cf || !va->va_cf->cf_clock) 184 return 0; /* not yet CMU attached. Try again later. */ 185 186 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 187 188 if (com_is_console(iot, va->va_addr, 0)) { 189 /* 190 * We have alredy probed. 191 */ 192 rv = 1; 193 } else { 194 rv = com_vrip_common_probe(iot, va->va_addr); 195 } 196 197 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 198 199 if (rv) { 200 va->va_size = COM_NPORTS; 201 } 202 return (rv); 203 } 204 205 206 static void 207 com_vrip_attach(parent, self, aux) 208 struct device *parent, *self; 209 void *aux; 210 { 211 struct com_vrip_softc *vsc = (void *) self; 212 struct com_softc *sc = &vsc->sc_com; 213 struct vrip_attach_args *va = aux; 214 215 bus_space_tag_t iot = va->va_iot; 216 bus_space_handle_t ioh; 217 218 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 219 220 DPRINTF(("==com_vrip_attach")); 221 222 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 223 printf(": can't map bus space\n"); 224 return; 225 } 226 sc->sc_iobase = va->va_addr; 227 sc->sc_iot = iot; 228 sc->sc_ioh = ioh; 229 230 sc->enable = NULL; /* XXX: CMU control */ 231 sc->disable = NULL; 232 233 sc->sc_frequency = VRCOM_FREQ; 234 /* Power management */ 235 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 236 /* 237 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 238 */ 239 /* XXX, locale 'ID' must be need */ 240 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 241 242 DPRINTF(("Try to attach com.\n")); 243 com_attach_subr(sc); 244 245 DPRINTF(("Establish intr")); 246 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 247 248 DPRINTF((":return()")); 249 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 250 } 251
Indexes created Tue Sep 30 20:09:53 GMT 2025