com_vrip.c revision 1.2
1 /* $NetBSD: com_vrip.c,v 1.2 1999/12/23 06:26:10 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 <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 #ifdef COMVRIPDEBUG 74 int com_vrip_debug = 0; 75 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 76 #else 77 #define DPRINTF(arg) 78 #endif 79 80 struct com_vrip_softc { 81 struct com_softc sc_com; 82 int sc_pwctl; 83 }; 84 85 static int com_vrip_probe __P((struct device *, struct cfdata *, void *)); 86 static void com_vrip_attach __P((struct device *, struct device *, void *)); 87 static int com_vrip_common_probe __P((bus_space_tag_t iot, int iobase)); 88 int find_comenableport_from_cfdata __P((int *)); 89 90 void vrcmu_init __P((void)); 91 void vrcmu_supply __P((int)); 92 void vrcmu_mask __P((int)); 93 94 struct cfattach com_vrip_ca = { 95 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 96 }; 97 98 /* For serial console */ 99 extern struct cfdata cfdata[]; 100 int 101 find_comenableport_from_cfdata(int *port) 102 { 103 platid_mask_t mask; 104 struct cfdata *cf; 105 int id; 106 107 printf ("COM enable port: "); 108 for (cf = cfdata; cf->cf_driver; cf++) { 109 if (strcmp(cf->cf_driver->cd_name, "pwctl")) 110 continue; 111 mask = PLATID_DEREF(cf->cf_loc[NEWGPBUSIFCF_PLATFORM]); 112 id = cf->cf_loc[NEWGPBUSIFCF_ID]; 113 if (platid_match(&platid, &mask) && 114 id == CONFIG_HOOK_POWERCONTROL_COM0) 115 goto found; 116 } 117 *port = -1; 118 printf ("not found\n"); 119 return 1; 120 found: 121 *port = cf->cf_loc[NEWGPBUSIFCF_PORT]; 122 printf ("#%d\n", *port); 123 124 return *port == GPBUSIFCF_COMCTRL_DEFAULT; 125 } 126 127 int 128 com_vrip_cnattach(iot, iobase, rate, frequency, cflag) 129 bus_space_tag_t iot; 130 int iobase; 131 int rate, frequency; 132 tcflag_t cflag; 133 { 134 int port; 135 /* Platform dependent setting */ 136 __vrcmu_supply(CMUMSKSSIU | CMUMSKSIU, 1); 137 if (find_comenableport_from_cfdata(&port) == 0) 138 __vrgiu_out(port, 1); 139 140 if (!com_vrip_common_probe(iot, iobase)) 141 return (EIO); /* I can't find appropriate error number. */ 142 return (comcnattach(iot, iobase, rate, frequency, cflag)); 143 } 144 145 static int 146 com_vrip_common_probe(iot, iobase) 147 bus_space_tag_t iot; 148 int iobase; 149 { 150 bus_space_handle_t ioh; 151 int rv; 152 153 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 154 printf(": can't map i/o space\n"); 155 return 0; 156 } 157 rv = comprobe1(iot, ioh); 158 bus_space_unmap(iot, ioh, 1); 159 return (rv); 160 } 161 162 static int 163 com_vrip_probe(parent, cf, aux) 164 struct device *parent; 165 struct cfdata *cf; 166 void *aux; 167 { 168 struct vrip_attach_args *va = aux; 169 bus_space_tag_t iot = va->va_iot; 170 int rv; 171 172 DPRINTF(("==com_vrip_probe")); 173 174 if (va->va_addr == VRIPCF_ADDR_DEFAULT || 175 va->va_intr == VRIPCF_INTR_DEFAULT) { 176 printf(": need addr and intr.\n"); 177 return (0); 178 } 179 180 if (!va->va_cf || !va->va_cf->cf_clock) 181 return 0; /* not yet CMU attached. Try again later. */ 182 183 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 184 185 if (com_is_console(iot, va->va_addr, 0)) { 186 /* 187 * We have alredy probed. 188 */ 189 rv = 1; 190 } else { 191 rv = com_vrip_common_probe(iot, va->va_addr); 192 } 193 194 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 195 196 if (rv) { 197 va->va_size = COM_NPORTS; 198 } 199 return (rv); 200 } 201 202 203 static void 204 com_vrip_attach(parent, self, aux) 205 struct device *parent, *self; 206 void *aux; 207 { 208 struct com_vrip_softc *vsc = (void *) self; 209 struct com_softc *sc = &vsc->sc_com; 210 struct vrip_attach_args *va = aux; 211 212 bus_space_tag_t iot = va->va_iot; 213 bus_space_handle_t ioh; 214 215 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPCF_PWCTL]; 216 217 DPRINTF(("==com_vrip_attach")); 218 219 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 220 printf(": can't map bus space\n"); 221 return; 222 } 223 sc->sc_iobase = va->va_addr; 224 sc->sc_iot = iot; 225 sc->sc_ioh = ioh; 226 227 sc->enable = NULL; /* XXX: CMU control */ 228 sc->disable = NULL; 229 230 sc->sc_frequency = VRCOM_FREQ; 231 /* Power management */ 232 va->va_cf->cf_clock(va->va_cc, CMUMSKSSIU | CMUMSKSIU, 1); 233 /* 234 va->va_gf->gf_portwrite(va->va_gc, GIUPORT_COM, 1); 235 */ 236 /* XXX, locale 'ID' must be need */ 237 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 238 239 240 DPRINTF(("Try to attach com.\n")); 241 com_attach_subr(sc); 242 243 DPRINTF(("Establish intr")); 244 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, comintr, self); 245 246 DPRINTF((":return()")); 247 } 248
Indexes created Tue Sep 30 20:09:53 GMT 2025