com_vrip.c revision 1.11
1 /* $NetBSD: com_vrip.c,v 1.11 2002/01/27 14:18:12 takemura 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/vripif.h> 56 #include <hpcmips/vr/vripvar.h> 57 #include <hpcmips/vr/cmureg.h> 58 #include <hpcmips/vr/siureg.h> 59 60 #include <dev/ic/comvar.h> 61 #include <dev/ic/comreg.h> 62 63 #include "opt_vr41xx.h" 64 #include <hpcmips/vr/vrgiuvar.h> 65 #include <hpcmips/vr/com_vripvar.h> 66 67 #include "locators.h" 68 69 #define COMVRIPDEBUG 70 #ifdef COMVRIPDEBUG 71 int com_vrip_debug = 0; 72 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 73 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 74 #else 75 #define DPRINTF(arg) 76 #define VPRINTF(arg) if (bootverbose) printf arg; 77 #endif 78 79 struct com_vrip_softc { 80 struct com_softc sc_com; 81 int sc_pwctl; 82 }; 83 84 static int com_vrip_probe(struct device *, struct cfdata *, void *); 85 static void com_vrip_attach(struct device *, struct device *, void *); 86 static int com_vrip_common_probe(bus_space_tag_t, int); 87 int find_comenableport_from_cfdata(int *); 88 89 void vrcmu_init(void); 90 void vrcmu_supply(int); 91 void vrcmu_mask(int); 92 93 struct cfattach com_vrip_ca = { 94 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 95 }; 96 97 /* For serial console */ 98 extern struct cfdata cfdata[]; 99 int 100 find_comenableport_from_cfdata(int *port) 101 { 102 platid_mask_t mask; 103 struct cfdata *cf; 104 int id; 105 106 printf ("COM enable port: "); 107 for (cf = cfdata; cf->cf_driver; cf++) { 108 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 109 continue; 110 mask = PLATID_DEREF(cf->cf_loc[HPCIOIFCF_PLATFORM]); 111 id = cf->cf_loc[HPCIOIFCF_ID]; 112 if (platid_match(&platid, &mask) && 113 id == CONFIG_HOOK_POWERCONTROL_COM0) 114 goto found; 115 } 116 *port = -1; 117 printf ("not found\n"); 118 return (0); 119 found: 120 *port = cf->cf_loc[HPCIOIFCF_PORT]; 121 printf ("#%d\n", *port); 122 123 return (1); 124 } 125 126 int 127 com_vrip_cndb_attach(bus_space_tag_t iot, int iobase, int rate, int frequency, 128 tcflag_t cflag, int kgdb) 129 { 130 int port; 131 /* Platform dependent setting */ 132 __vrcmu_supply(CMUMASK_SIU, 1); 133 if (find_comenableport_from_cfdata(&port)) 134 __vrgiu_out(port, 1); 135 136 if (!com_vrip_common_probe(iot, iobase)) 137 return (EIO); /* I can't find appropriate error number. */ 138 #ifdef KGDB 139 if (kgdb) 140 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 141 else 142 #endif 143 return (comcnattach(iot, iobase, rate, frequency, cflag)); 144 } 145 146 static int 147 com_vrip_common_probe(bus_space_tag_t iot, int iobase) 148 { 149 bus_space_handle_t ioh; 150 int rv; 151 152 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 153 printf(": can't map i/o space\n"); 154 return 0; 155 } 156 rv = comprobe1(iot, ioh); 157 bus_space_unmap(iot, ioh, 1); 158 return (rv); 159 } 160 161 static int 162 com_vrip_probe(struct device *parent, struct cfdata *cf, void *aux) 163 { 164 struct vrip_attach_args *va = aux; 165 bus_space_tag_t iot = va->va_iot; 166 int rv; 167 168 DPRINTF(("==com_vrip_probe")); 169 170 if (va->va_addr == VRIPIFCF_ADDR_DEFAULT || 171 va->va_unit == VRIPIFCF_UNIT_DEFAULT) { 172 printf(": need addr and intr.\n"); 173 return (0); 174 } 175 176 vrip_power(va->va_vc, va->va_unit, 1); 177 178 if (com_is_console(iot, va->va_addr, 0)) { 179 /* 180 * We have alredy probed. 181 */ 182 rv = 1; 183 } else { 184 rv = com_vrip_common_probe(iot, va->va_addr); 185 } 186 187 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 188 189 if (rv) { 190 va->va_size = COM_NPORTS; 191 } 192 return (rv); 193 } 194 195 196 static void 197 com_vrip_attach(struct device *parent, struct device *self, void *aux) 198 { 199 struct com_vrip_softc *vsc = (void *) self; 200 struct com_softc *sc = &vsc->sc_com; 201 struct vrip_attach_args *va = aux; 202 203 bus_space_tag_t iot = va->va_iot; 204 bus_space_handle_t ioh; 205 206 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPIFCF_PWCTL]; 207 208 DPRINTF(("==com_vrip_attach")); 209 210 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 211 printf(": can't map bus space\n"); 212 return; 213 } 214 sc->sc_iobase = va->va_addr; 215 sc->sc_iot = iot; 216 sc->sc_ioh = ioh; 217 218 sc->enable = NULL; /* XXX: CMU control */ 219 sc->disable = NULL; 220 221 sc->sc_frequency = VRCOM_FREQ; 222 /* Power management */ 223 vrip_power(va->va_vc, va->va_unit, 1); 224 /* XXX, locale 'ID' must be need */ 225 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 226 227 DPRINTF(("Try to attach com.\n")); 228 com_attach_subr(sc); 229 230 DPRINTF(("Establish intr")); 231 if (!vrip_intr_establish(va->va_vc, va->va_unit, 0, IPL_TTY, 232 comintr, self)) { 233 printf("%s: can't map interrupt line.\n", sc->sc_dev.dv_xname); 234 } 235 236 DPRINTF((":return()")); 237 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 238 } 239
Indexes created Wed Oct 01 07:09:59 GMT 2025