com_vrip.c revision 1.6
1 /* $NetBSD: com_vrip.c,v 1.6 2001/03/11 16:45:13 uch 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 <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/reboot.h> 41 42 #include <sys/termios.h> 43 44 #include <machine/intr.h> 45 #include <machine/bus.h> 46 47 #include <machine/platid.h> 48 #include <machine/platid_mask.h> 49 #include <machine/config_hook.h> 50 51 #include <hpcmips/vr/vr.h> 52 #include <hpcmips/vr/vripvar.h> 53 #include <hpcmips/vr/cmureg.h> 54 #include <hpcmips/vr/siureg.h> 55 56 #include <dev/ic/comvar.h> 57 #include <dev/ic/comreg.h> 58 59 #include <hpcmips/vr/com_vripvar.h> 60 61 #include "locators.h" 62 63 #define COMVRIPDEBUG 64 #ifdef COMVRIPDEBUG 65 int com_vrip_debug = 0; 66 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 67 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 68 #else 69 #define DPRINTF(arg) 70 #define VPRINTF(arg) if (bootverbose) printf arg; 71 #endif 72 73 struct com_vrip_softc { 74 struct com_softc sc_com; 75 int sc_pwctl; 76 }; 77 78 static int com_vrip_probe __P((struct device *, struct cfdata *, void *)); 79 static void com_vrip_attach __P((struct device *, struct device *, void *)); 80 static int com_vrip_common_probe __P((bus_space_tag_t iot, int iobase)); 81 int find_comenableport_from_cfdata __P((int *)); 82 83 void vrcmu_init __P((void)); 84 void vrcmu_supply __P((int)); 85 void vrcmu_mask __P((int)); 86 87 struct cfattach com_vrip_ca = { 88 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 89 }; 90 91 /* For serial console */ 92 extern struct cfdata cfdata[]; 93 int 94 find_comenableport_from_cfdata(int *port) 95 { 96 platid_mask_t mask; 97 struct cfdata *cf; 98 int id; 99 100 printf ("COM enable port: "); 101 for (cf = cfdata; cf->cf_driver; cf++) { 102 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 103 continue; 104 mask = PLATID_DEREF(cf->cf_loc[NEWGPBUSIFCF_PLATFORM]); 105 id = cf->cf_loc[NEWGPBUSIFCF_ID]; 106 if (platid_match(&platid, &mask) && 107 id == CONFIG_HOOK_POWERCONTROL_COM0) 108 goto found; 109 } 110 *port = -1; 111 printf ("not found\n"); 112 return 1; 113 found: 114 *port = cf->cf_loc[NEWGPBUSIFCF_PORT]; 115 printf ("#%d\n", *port); 116 117 return *port == GPBUSIFCF_COMCTRL_DEFAULT; 118 } 119 120 int 121 com_vrip_cndb_attach(iot, iobase, rate, frequency, cflag, kgdb) 122 bus_space_tag_t iot; 123 int iobase; 124 int rate, frequency; 125 tcflag_t cflag; 126 int kgdb; 127 { 128 int port; 129 /* Platform dependent setting */ 130 __vrcmu_supply(CMUMSKSSIU | CMUMSKSIU, 1); 131 if (find_comenableport_from_cfdata(&port) == 0) 132 __vrgiu_out(port, 1); 133 134 if (!com_vrip_common_probe(iot, iobase)) 135 return (EIO); /* I can't find appropriate error number. */ 136 #ifdef KGDB 137 if (kgdb) 138 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 139 else 140 #endif 141 return (comcnattach(iot, iobase, rate, frequency, cflag)); 142 } 143 144 static int 145 com_vrip_common_probe(iot, iobase) 146 bus_space_tag_t iot; 147 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(parent, cf, aux) 163 struct device *parent; 164 struct cfdata *cf; 165 void *aux; 166 { 167 struct vrip_attach_args *va = aux; 168 bus_space_tag_t iot = va->va_iot; 169 int rv; 170 171 DPRINTF(("==com_vrip_probe")); 172 173 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 174 va->va_intr == VRIPCF_INTR_DEFAULT) { 175 printf(": need addr and intr.\n"); 176 return (0); 177 } 178 179 if (!va->va_cf || !va->va_cf->cf_clock) 180 return 0; /* not yet CMU attached. Try again later. */ 181 182 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 183 184 if (com_is_console(iot, va->va_addr, 0)) { 185 /* 186 * We have alredy probed. 187 */ 188 rv = 1; 189 } else { 190 rv = com_vrip_common_probe(iot, va->va_addr); 191 } 192 193 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 194 195 if (rv) { 196 va->va_size = COM_NPORTS; 197 } 198 return (rv); 199 } 200 201 202 static void 203 com_vrip_attach(parent, self, aux) 204 struct device *parent, *self; 205 void *aux; 206 { 207 struct com_vrip_softc *vsc = (void *) self; 208 struct com_softc *sc = &vsc->sc_com; 209 struct vrip_attach_args *va = aux; 210 211 bus_space_tag_t iot = va->va_iot; 212 bus_space_handle_t ioh; 213 214 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 215 216 DPRINTF(("==com_vrip_attach")); 217 218 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 219 printf(": can't map bus space\n"); 220 return; 221 } 222 sc->sc_iobase = va->va_addr; 223 sc->sc_iot = iot; 224 sc->sc_ioh = ioh; 225 226 sc->enable = NULL; /* XXX: CMU control */ 227 sc->disable = NULL; 228 229 sc->sc_frequency = VRCOM_FREQ; 230 /* Power management */ 231 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 232 /* 233 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 234 */ 235 /* XXX, locale 'ID' must be need */ 236 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 237 238 DPRINTF(("Try to attach com.\n")); 239 com_attach_subr(sc); 240 241 DPRINTF(("Establish intr")); 242 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 243 244 DPRINTF((":return()")); 245 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 246 } 247
Indexes created Tue Sep 30 20:09:53 GMT 2025