1 /* $NetBSD: com_vrip.c,v 1.21 2008/08/29 12:08:30 tsutsui 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 <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: com_vrip.c,v 1.21 2008/08/29 12:08:30 tsutsui Exp $"); 39 40 #include "opt_kgdb.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/reboot.h> 46 47 #include <sys/termios.h> 48 49 #include <machine/intr.h> 50 #include <machine/bus.h> 51 52 #include <machine/platid.h> 53 #include <machine/platid_mask.h> 54 #include <machine/config_hook.h> 55 56 #include <hpcmips/vr/vr.h> 57 #include <hpcmips/vr/vrcpudef.h> 58 #include <hpcmips/vr/vripif.h> 59 #include <hpcmips/vr/vripvar.h> 60 #include <hpcmips/vr/cmureg.h> 61 #include <hpcmips/vr/siureg.h> 62 63 #include <dev/ic/comvar.h> 64 #include <dev/ic/comreg.h> 65 66 #include "opt_vr41xx.h" 67 #include <hpcmips/vr/com_vripvar.h> 68 69 #include "locators.h" 70 71 #define COMVRIPDEBUG 72 #ifdef COMVRIPDEBUG 73 int com_vrip_debug = 0; 74 #define DPRINTF(arg) if (com_vrip_debug) printf arg; 75 #define VPRINTF(arg) if (com_vrip_debug || bootverbose) printf arg; 76 #else 77 #define DPRINTF(arg) 78 #define VPRINTF(arg) if (bootverbose) printf 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(device_t, cfdata_t , void *); 87 static void com_vrip_attach(device_t, device_t, void *); 88 static int com_vrip_common_probe(bus_space_tag_t, int); 89 90 void vrcmu_init(void); 91 void vrcmu_supply(int); 92 void vrcmu_mask(int); 93 94 CFATTACH_DECL_NEW(com_vrip, sizeof(struct com_vrip_softc), 95 com_vrip_probe, com_vrip_attach, NULL, NULL); 96 97 int 98 com_vrip_cndb_attach(bus_space_tag_t iot, int iobase, int rate, int frequency, 99 tcflag_t cflag, int kgdb) 100 { 101 102 if (!com_vrip_common_probe(iot, iobase)) 103 return (EIO); /* I can't find appropriate error number. */ 104 #ifdef KGDB 105 if (kgdb) 106 return (com_kgdb_attach(iot, iobase, rate, frequency, 107 COM_TYPE_NORMAL, cflag)); 108 else 109 #endif 110 return (comcnattach(iot, iobase, rate, frequency, 111 COM_TYPE_NORMAL, cflag)); 112 } 113 114 static int 115 com_vrip_common_probe(bus_space_tag_t iot, int iobase) 116 { 117 bus_space_handle_t ioh; 118 int rv; 119 120 if (bus_space_map(iot, iobase, 1, 0, &ioh)) { 121 aprint_error(": can't map i/o space\n"); 122 return 0; 123 } 124 rv = comprobe1(iot, ioh); 125 bus_space_unmap(iot, ioh, 1); 126 return (rv); 127 } 128 129 static int 130 com_vrip_probe(device_t parent, cfdata_t cf, void *aux) 131 { 132 struct vrip_attach_args *va = aux; 133 bus_space_tag_t iot = va->va_iot; 134 int rv; 135 136 DPRINTF(("==com_vrip_probe")); 137 138 if (va->va_addr == VRIPIFCF_ADDR_DEFAULT || 139 va->va_unit == VRIPIFCF_UNIT_DEFAULT) { 140 aprint_error(": need addr and intr.\n"); 141 return (0); 142 } 143 144 vrip_power(va->va_vc, va->va_unit, 1); 145 146 if (com_is_console(iot, va->va_addr, 0)) { 147 /* 148 * We have alredy probed. 149 */ 150 rv = 1; 151 } else { 152 rv = com_vrip_common_probe(iot, va->va_addr); 153 } 154 155 DPRINTF((rv ? ": found COM ports\n" : ": can't probe COM device\n")); 156 157 if (rv) { 158 va->va_size = COM_NPORTS; 159 } 160 return (rv); 161 } 162 163 164 static void 165 com_vrip_attach(device_t parent, device_t self, void *aux) 166 { 167 struct com_vrip_softc *vsc = device_private(self); 168 struct com_softc *sc = &vsc->sc_com; 169 struct vrip_attach_args *va = aux; 170 171 bus_space_tag_t iot = va->va_iot; 172 bus_space_handle_t ioh; 173 174 sc->sc_dev = self; 175 vsc->sc_pwctl = device_cfdata(sc->sc_dev)->cf_loc[VRIPIFCF_PWCTL]; 176 177 DPRINTF(("==com_vrip_attach")); 178 179 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 180 aprint_error(": can't map bus space\n"); 181 return; 182 } 183 184 COM_INIT_REGS(sc->sc_regs, iot, ioh, va->va_addr); 185 186 sc->enable = NULL; /* XXX: CMU control */ 187 sc->disable = NULL; 188 189 sc->sc_frequency = VRCOM_FREQ; 190 /* Power management */ 191 vrip_power(va->va_vc, va->va_unit, 1); 192 /* XXX, locale 'ID' must be need */ 193 config_hook_call(CONFIG_HOOK_POWERCONTROL, vsc->sc_pwctl, (void*)1); 194 195 DPRINTF(("Try to attach com.\n")); 196 com_attach_subr(sc); 197 198 DPRINTF(("Establish intr")); 199 if (!vrip_intr_establish(va->va_vc, va->va_unit, 0, IPL_TTY, 200 comintr, sc)) { 201 aprint_error_dev(self, "can't map interrupt line.\n"); 202 } 203 204 DPRINTF((":return()")); 205 VPRINTF(("%s: pwctl %d\n", device_xname(self), vsc->sc_pwctl)); 206 } 207