1 /* $NetBSD: com_vrip.c,v 1.12 2002/02/02 10:50:09 takemura Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 SASAKI Takesi. All rights reserved. 5 * Copyright (c) 1999, 2002 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/com_vripvar.h> 65 66 #include "locators.h" 67 68 #define COMVRIPDEBUG 69 #ifdef COMVRIPDEBUG 70 int com_vrip_debug = 0; 71 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 72 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 73 #else 74 #define DPRINTF(arg) 75 #define VPRINTF(arg) if (bootverbose) printf arg; 76 #endif 77 78 struct com_vrip_softc { 79 struct com_softc sc_com; 80 int sc_pwctl; 81 }; 82 83 static int com_vrip_probe(struct device *, struct cfdata *, void *); 84 static void com_vrip_attach(struct device *, struct device *, void *); 85 static int com_vrip_common_probe(bus_space_tag_t, int); 86 87 void vrcmu_init(void); 88 void vrcmu_supply(int); 89 void vrcmu_mask(int); 90 91 struct cfattach com_vrip_ca = { 92 sizeof(struct com_vrip_softc), com_vrip_probe, com_vrip_attach 93 }; 94 95 int 96 com_vrip_cndb_attach(bus_space_tag_t iot, int iobase, int rate, int frequency, 97 tcflag_t cflag, int kgdb) 98 { 99 100 if (!com_vrip_common_probe(iot, iobase)) 101 return (EIO); /* I can't find appropriate error number. */ 102 #ifdef KGDB 103 if (kgdb) 104 return (com_kgdb_attach(iot, iobase, rate, frequency, cflag)); 105 else 106 #endif 107 return (comcnattach(iot, iobase, rate, frequency, cflag)); 108 } 109 110 static int 111 com_vrip_common_probe(bus_space_tag_t iot, int iobase) 112 { 113 bus_space_handle_t ioh; 114 int rv; 115 116 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 117 printf(": can't map i/o space\n"); 118 return 0; 119 } 120 rv = comprobe1(iot, ioh); 121 bus_space_unmap(iot, ioh, 1); 122 return (rv); 123 } 124 125 static int 126 com_vrip_probe(struct device *parent, struct cfdata *cf, void *aux) 127 { 128 struct vrip_attach_args *va = aux; 129 bus_space_tag_t iot = va->va_iot; 130 int rv; 131 132 DPRINTF(("==com_vrip_probe")); 133 134 if (va->va_addr == VRIPIFCF_ADDR_DEFAULT || 135 va->va_unit == VRIPIFCF_UNIT_DEFAULT) { 136 printf(": need addr and intr.\n"); 137 return (0); 138 } 139 140 vrip_power(va->va_vc, va->va_unit, 1); 141 142 if (com_is_console(iot, va->va_addr, 0)) { 143 /* 144 * We have alredy probed. 145 */ 146 rv = 1; 147 } else { 148 rv = com_vrip_common_probe(iot, va->va_addr); 149 } 150 151 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 152 153 if (rv) { 154 va->va_size = COM_NPORTS; 155 } 156 return (rv); 157 } 158 159 160 static void 161 com_vrip_attach(struct device *parent, struct device *self, void *aux) 162 { 163 struct com_vrip_softc *vsc = (void *) self; 164 struct com_softc *sc = &vsc->sc_com; 165 struct vrip_attach_args *va = aux; 166 167 bus_space_tag_t iot = va->va_iot; 168 bus_space_handle_t ioh; 169 170 vsc->sc_pwctl = sc->sc_dev.dv_cfdata->cf_loc[VRIPIFCF_PWCTL]; 171 172 DPRINTF(("==com_vrip_attach")); 173 174 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 175 printf(": can't map bus space\n"); 176 return; 177 } 178 sc->sc_iobase = va->va_addr; 179 sc->sc_iot = iot; 180 sc->sc_ioh = ioh; 181 182 sc->enable = NULL; /* XXX: CMU control */ 183 sc->disable = NULL; 184 185 sc->sc_frequency = VRCOM_FREQ; 186 /* Power management */ 187 vrip_power(va->va_vc, va->va_unit, 1); 188 /* XXX, locale 'ID' must be need */ 189 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 190 191 DPRINTF(("Try to attach com.\n")); 192 com_attach_subr(sc); 193 194 DPRINTF(("Establish intr")); 195 if (!vrip_intr_establish(va->va_vc, va->va_unit, 0, IPL_TTY, 196 comintr, self)) { 197 printf("%s: can't map interrupt line.\n", sc->sc_dev.dv_xname); 198 } 199 200 DPRINTF((":return()")); 201 VPRINTF(("%s: pwctl %d\n", vsc->sc_com.sc_dev.dv_xname, vsc->sc_pwctl)); 202 } 203