com_vrip.c revision 1.5
1 /* $NetBSD: com_vrip.c,v 1.5 2000/10/27 08:12:18 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 <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/ioctl.h> 40 #include <sys/termios.h> 41 #include <sys/select.h> 42 #include <sys/tty.h> 43 #include <sys/proc.h> 44 #include <sys/user.h> 45 #include <sys/conf.h> 46 #include <sys/file.h> 47 #include <sys/uio.h> 48 #include <sys/kernel.h> 49 #include <sys/syslog.h> 50 #include <sys/types.h> 51 #include <sys/device.h> 52 #include <sys/reboot.h> 53 54 #include <machine/intr.h> 55 #include <machine/bus.h> 56 /* For serial console */ 57 #include <machine/platid.h> 58 #include <machine/platid_mask.h> 59 #include <machine/config_hook.h> 60 61 #include <hpcmips/vr/vr.h> 62 #include <hpcmips/vr/vripvar.h> 63 #include <hpcmips/vr/cmureg.h> 64 #include <hpcmips/vr/siureg.h> 65 66 #include <dev/ic/comvar.h> 67 #include <dev/ic/comreg.h> 68 69 #include <hpcmips/vr/com_vripvar.h> 70 71 #include "locators.h" 72 73 #define COMVRIPDEBUG 74 #ifdef COMVRIPDEBUG 75 int com_vrip_debug = 0; 76 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 77 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 78 #else 79 #define DPRINTF(arg) 80 #define VPRINTF(arg) if (bootverbose) printf arg; 81 #endif 82 83 struct com_vrip_softc { 84 struct com_softc sc_com; 85 int sc_pwctl; 86 }; 87 88 static int com_vrip_probe __P((struct device *, struct cfdata *, void *)); 89 static void com_vrip_attach __P((struct device *, struct device *, void *)); 90 static int com_vrip_common_probe __P((bus_space_tag_t iot, int iobase)); 91 int find_comenableport_from_cfdata __P((int *)); 92 93 void vrcmu_init __P((void)); 94 void vrcmu_supply __P((int)); 95 void vrcmu_mask __P((int)); 96 97 struct cfattach com_vrip_ca = { 98 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 99 }; 100 101 /* For serial console */ 102 extern struct cfdata cfdata[]; 103 int 104 find_comenableport_from_cfdata(int *port) 105 { 106 platid_mask_t mask; 107 struct cfdata *cf; 108 int id; 109 110 printf ("COM enable port: "); 111 for (cf = cfdata; cf->cf_driver; cf++) { 112 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 113 continue; 114 mask = PLATID_DEREF(cf->cf_loc[NEWGPBUSIFCF_PLATFORM]); 115 id = cf->cf_loc[NEWGPBUSIFCF_ID]; 116 if (platid_match(&platid, &mask) && 117 id == CONFIG_HOOK_POWERCONTROL_COM0) 118 goto found; 119 } 120 *port = -1; 121 printf ("not found\n"); 122 return 1; 123 found: 124 *port = cf->cf_loc[NEWGPBUSIFCF_PORT]; 125 printf ("#%d\n", *port); 126 127 return *port == GPBUSIFCF_COMCTRL_DEFAULT; 128 } 129 130 int 131 com_vrip_cndb_attach(iot, iobase, rate, frequency, cflag, kgdb) 132 bus_space_tag_t iot; 133 int iobase; 134 int rate, frequency; 135 tcflag_t cflag; 136 int kgdb; 137 { 138 int port; 139 /* Platform dependent setting */ 140 __vrcmu_supply(CMUMSKSSIU | CMUMSKSIU, 1); 141 if (find_comenableport_from_cfdata(&port) == 0) 142 __vrgiu_out(port, 1); 143 144 if (!com_vrip_common_probe(iot, iobase)) 145 return (EIO); /* I can't find appropriate error number. */ 146 #ifdef KGDB 147 if (kgdb) 148 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 149 else 150 #endif 151 return (comcnattach(iot, iobase, rate, frequency, cflag)); 152 } 153 154 static int 155 com_vrip_common_probe(iot, iobase) 156 bus_space_tag_t iot; 157 int iobase; 158 { 159 bus_space_handle_t ioh; 160 int rv; 161 162 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 163 printf(": can't map i/o space\n"); 164 return 0; 165 } 166 rv = comprobe1(iot, ioh); 167 bus_space_unmap(iot, ioh, 1); 168 return (rv); 169 } 170 171 static int 172 com_vrip_probe(parent, cf, aux) 173 struct device *parent; 174 struct cfdata *cf; 175 void *aux; 176 { 177 struct vrip_attach_args *va = aux; 178 bus_space_tag_t iot = va->va_iot; 179 int rv; 180 181 DPRINTF(("==com_vrip_probe")); 182 183 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 184 va->va_intr == VRIPCF_INTR_DEFAULT) { 185 printf(": need addr and intr.\n"); 186 return (0); 187 } 188 189 if (!va->va_cf || !va->va_cf->cf_clock) 190 return 0; /* not yet CMU attached. Try again later. */ 191 192 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 193 194 if (com_is_console(iot, va->va_addr, 0)) { 195 /* 196 * We have alredy probed. 197 */ 198 rv = 1; 199 } else { 200 rv = com_vrip_common_probe(iot, va->va_addr); 201 } 202 203 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 204 205 if (rv) { 206 va->va_size = COM_NPORTS; 207 } 208 return (rv); 209 } 210 211 212 static void 213 com_vrip_attach(parent, self, aux) 214 struct device *parent, *self; 215 void *aux; 216 { 217 struct com_vrip_softc *vsc = (void *) self; 218 struct com_softc *sc = &vsc->sc_com; 219 struct vrip_attach_args *va = aux; 220 221 bus_space_tag_t iot = va->va_iot; 222 bus_space_handle_t ioh; 223 224 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 225 226 DPRINTF(("==com_vrip_attach")); 227 228 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 229 printf(": can't map bus space\n"); 230 return; 231 } 232 sc->sc_iobase = va->va_addr; 233 sc->sc_iot = iot; 234 sc->sc_ioh = ioh; 235 236 sc->enable = NULL; /* XXX: CMU control */ 237 sc->disable = NULL; 238 239 sc->sc_frequency = VRCOM_FREQ; 240 /* Power management */ 241 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 242 /* 243 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 244 */ 245 /* XXX, locale 'ID' must be need */ 246 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 247 248 DPRINTF(("Try to attach com.\n")); 249 com_attach_subr(sc); 250 251 DPRINTF(("Establish intr")); 252 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 253 254 DPRINTF((":return()")); 255 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 256 } 257
Indexes created Tue Sep 30 20:09:53 GMT 2025