com_vrip.c revision 1.4
1 /* $NetBSD: com_vrip.c,v 1.4 2000/07/20 21:03:38 jeffs 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 #else 78 #define DPRINTF(arg) 79 #endif 80 81 struct com_vrip_softc { 82 struct com_softc sc_com; 83 int sc_pwctl; 84 }; 85 86 static int com_vrip_probe __P((struct device *, struct cfdata *, void *)); 87 static void com_vrip_attach __P((struct device *, struct device *, void *)); 88 static int com_vrip_common_probe __P((bus_space_tag_t iot, int iobase)); 89 int find_comenableport_from_cfdata __P((int *)); 90 91 void vrcmu_init __P((void)); 92 void vrcmu_supply __P((int)); 93 void vrcmu_mask __P((int)); 94 95 struct cfattach com_vrip_ca = { 96 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 97 }; 98 99 /* For serial console */ 100 extern struct cfdata cfdata[]; 101 int 102 find_comenableport_from_cfdata(int *port) 103 { 104 platid_mask_t mask; 105 struct cfdata *cf; 106 int id; 107 108 printf ("COM enable port: "); 109 for (cf = cfdata; cf->cf_driver; cf++) { 110 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 111 continue; 112 mask = PLATID_DEREF(cf->cf_loc[NEWGPBUSIFCF_PLATFORM]); 113 id = cf->cf_loc[NEWGPBUSIFCF_ID]; 114 if (platid_match(&platid, &mask) && 115 id == CONFIG_HOOK_POWERCONTROL_COM0) 116 goto found; 117 } 118 *port = -1; 119 printf ("not found\n"); 120 return 1; 121 found: 122 *port = cf->cf_loc[NEWGPBUSIFCF_PORT]; 123 printf ("#%d\n", *port); 124 125 return *port == GPBUSIFCF_COMCTRL_DEFAULT; 126 } 127 128 int 129 com_vrip_cndb_attach(iot, iobase, rate, frequency, cflag, kgdb) 130 bus_space_tag_t iot; 131 int iobase; 132 int rate, frequency; 133 tcflag_t cflag; 134 int kgdb; 135 { 136 int port; 137 /* Platform dependent setting */ 138 __vrcmu_supply(CMUMSKSSIU | CMUMSKSIU, 1); 139 if (find_comenableport_from_cfdata(&port) == 0) 140 __vrgiu_out(port, 1); 141 142 if (!com_vrip_common_probe(iot, iobase)) 143 return (EIO); /* I can't find appropriate error number. */ 144 #ifdef KGDB 145 if (kgdb) 146 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 147 else 148 #endif 149 return (comcnattach(iot, iobase, rate, frequency, cflag)); 150 } 151 152 static int 153 com_vrip_common_probe(iot, iobase) 154 bus_space_tag_t iot; 155 int iobase; 156 { 157 bus_space_handle_t ioh; 158 int rv; 159 160 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 161 printf(": can't map i/o space\n"); 162 return 0; 163 } 164 rv = comprobe1(iot, ioh); 165 bus_space_unmap(iot, ioh, 1); 166 return (rv); 167 } 168 169 static int 170 com_vrip_probe(parent, cf, aux) 171 struct device *parent; 172 struct cfdata *cf; 173 void *aux; 174 { 175 struct vrip_attach_args *va = aux; 176 bus_space_tag_t iot = va->va_iot; 177 int rv; 178 179 DPRINTF(("==com_vrip_probe")); 180 181 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 182 va->va_intr == VRIPCF_INTR_DEFAULT) { 183 printf(": need addr and intr.\n"); 184 return (0); 185 } 186 187 if (!va->va_cf || !va->va_cf->cf_clock) 188 return 0; /* not yet CMU attached. Try again later. */ 189 190 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 191 192 if (com_is_console(iot, va->va_addr, 0)) { 193 /* 194 * We have alredy probed. 195 */ 196 rv = 1; 197 } else { 198 rv = com_vrip_common_probe(iot, va->va_addr); 199 } 200 201 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 202 203 if (rv) { 204 va->va_size = COM_NPORTS; 205 } 206 return (rv); 207 } 208 209 210 static void 211 com_vrip_attach(parent, self, aux) 212 struct device *parent, *self; 213 void *aux; 214 { 215 struct com_vrip_softc *vsc = (void *) self; 216 struct com_softc *sc = &vsc->sc_com; 217 struct vrip_attach_args *va = aux; 218 219 bus_space_tag_t iot = va->va_iot; 220 bus_space_handle_t ioh; 221 222 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 223 224 DPRINTF(("==com_vrip_attach")); 225 226 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 227 printf(": can't map bus space\n"); 228 return; 229 } 230 sc->sc_iobase = va->va_addr; 231 sc->sc_iot = iot; 232 sc->sc_ioh = ioh; 233 234 sc->enable = NULL; /* XXX: CMU control */ 235 sc->disable = NULL; 236 237 sc->sc_frequency = VRCOM_FREQ; 238 /* Power management */ 239 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 240 /* 241 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 242 */ 243 /* XXX, locale 'ID' must be need */ 244 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 245 246 247 DPRINTF(("Try to attach com.\n")); 248 com_attach_subr(sc); 249 250 DPRINTF(("Establish intr")); 251 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 252 253 DPRINTF((":return()")); 254 } 255
Indexes created Tue Sep 30 20:09:53 GMT 2025