com_vrip.c revision 1.10
1 /* $NetBSD: com_vrip.c,v 1.10 2001/09/28 10:25:16 sato 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/vrcpudef.h> 55 #include <hpcmips/vr/vripvar.h> 56 #include <hpcmips/vr/cmureg.h> 57 #include <hpcmips/vr/siureg.h> 58 59 #include <dev/ic/comvar.h> 60 #include <dev/ic/comreg.h> 61 62 #include "opt_vr41xx.h" 63 #include <hpcmips/vr/vrgiuvar.h> 64 #include <hpcmips/vr/com_vripvar.h> 65 66 #include "locators.h" 67 68 #define COMVRIPDEBUG 69 #ifdef COMVRIPDEBUG 70 int com_vrip_debug = 0; 71 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 72 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 73 #else 74 #define DPRINTF(arg) 75 #define VPRINTF(arg) if (bootverbose) printf arg; 76 #endif 77 78 struct com_vrip_softc { 79 struct com_softc sc_com; 80 int sc_pwctl; 81 }; 82 83 static int com_vrip_probe(struct device *, struct cfdata *, void *); 84 static void com_vrip_attach(struct device *, struct device *, void *); 85 static int com_vrip_common_probe(bus_space_tag_t, int); 86 int find_comenableport_from_cfdata(int *); 87 88 void vrcmu_init(void); 89 void vrcmu_supply(int); 90 void vrcmu_mask(int); 91 92 struct cfattach com_vrip_ca = { 93 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 94 }; 95 96 /* For serial console */ 97 extern struct cfdata cfdata[]; 98 int 99 find_comenableport_from_cfdata(int *port) 100 { 101 platid_mask_t mask; 102 struct cfdata *cf; 103 int id; 104 105 printf ("COM enable port: "); 106 for (cf = cfdata; cf->cf_driver; cf++) { 107 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 108 continue; 109 mask = PLATID_DEREF(cf->cf_loc[HPCIOIFCF_PLATFORM]); 110 id = cf->cf_loc[HPCIOIFCF_ID]; 111 if (platid_match(&platid, &mask) && 112 id == CONFIG_HOOK_POWERCONTROL_COM0) 113 goto found; 114 } 115 *port = -1; 116 printf ("not found\n"); 117 return (0); 118 found: 119 *port = cf->cf_loc[HPCIOIFCF_PORT]; 120 printf ("#%d\n", *port); 121 122 return (1); 123 } 124 125 int 126 com_vrip_cndb_attach(bus_space_tag_t iot, int iobase, int rate, int frequency, 127 tcflag_t cflag, int kgdb) 128 { 129 int port; 130 /* Platform dependent setting */ 131 __vrcmu_supply(CMUMASK_SIU, 1); 132 if (find_comenableport_from_cfdata(&port)) 133 __vrgiu_out(port, 1); 134 135 if (!com_vrip_common_probe(iot, iobase)) 136 return (EIO); /* I can't find appropriate error number. */ 137 #ifdef KGDB 138 if (kgdb) 139 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 140 else 141 #endif 142 return (comcnattach(iot, iobase, rate, frequency, cflag)); 143 } 144 145 static int 146 com_vrip_common_probe(bus_space_tag_t iot, int iobase) 147 { 148 bus_space_handle_t ioh; 149 int rv; 150 151 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 152 printf(": can't map i/o space\n"); 153 return 0; 154 } 155 rv = comprobe1(iot, ioh); 156 bus_space_unmap(iot, ioh, 1); 157 return (rv); 158 } 159 160 static int 161 com_vrip_probe(struct device *parent, struct cfdata *cf, void *aux) 162 { 163 struct vrip_attach_args *va = aux; 164 bus_space_tag_t iot = va->va_iot; 165 int rv; 166 167 DPRINTF(("==com_vrip_probe")); 168 169 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 170 va->va_intr == VRIPCF_INTR_DEFAULT) { 171 printf(": need addr and intr.\n"); 172 return (0); 173 } 174 175 if (!va->va_cf || !va->va_cf->cf_clock) 176 return 0; /* not yet CMU attached. Try again later. */ 177 178 va->va_cf->cf_clock(va->va_cc, CMUMASK_SIU, 1); 179 180 if (com_is_console(iot, va->va_addr, 0)) { 181 /* 182 * We have alredy probed. 183 */ 184 rv = 1; 185 } else { 186 rv = com_vrip_common_probe(iot, va->va_addr); 187 } 188 189 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 190 191 if (rv) { 192 va->va_size = COM_NPORTS; 193 } 194 return (rv); 195 } 196 197 198 static void 199 com_vrip_attach(struct device *parent, struct device *self, void *aux) 200 { 201 struct com_vrip_softc *vsc = (void *) self; 202 struct com_softc *sc = &vsc->sc_com; 203 struct vrip_attach_args *va = aux; 204 205 bus_space_tag_t iot = va->va_iot; 206 bus_space_handle_t ioh; 207 208 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 209 210 DPRINTF(("==com_vrip_attach")); 211 212 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 213 printf(": can't map bus space\n"); 214 return; 215 } 216 sc->sc_iobase = va->va_addr; 217 sc->sc_iot = iot; 218 sc->sc_ioh = ioh; 219 220 sc->enable = NULL; /* XXX: CMU control */ 221 sc->disable = NULL; 222 223 sc->sc_frequency = VRCOM_FREQ; 224 /* Power management */ 225 va->va_cf->cf_clock(va->va_cc, CMUMASK_SIU, 1); 226 /* 227 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 228 */ 229 /* XXX, locale 'ID' must be need */ 230 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 231 232 DPRINTF(("Try to attach com.\n")); 233 com_attach_subr(sc); 234 235 DPRINTF(("Establish intr")); 236 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 237 238 DPRINTF((":return()")); 239 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 240 } 241
Indexes created Wed Oct 01 07:09:59 GMT 2025