1/* $NetBSD: com_vrip.c,v 1.24 2022/07/08 07:02:47 skrll 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 1.24 2022/07/08 07:02:47 skrll 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 73int 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 81struct com_vrip_softc { 82 struct com_softc sc_com; 83 int sc_pwctl; 84}; 85 86static int com_vrip_probe(device_t, cfdata_t , void *); 87static void com_vrip_attach(device_t, device_t, void *); 88static int com_vrip_common_probe(bus_space_tag_t, int); 89 90void vrcmu_init(void); 91void vrcmu_supply(int); 92void vrcmu_mask(int); 93 94CFATTACH_DECL_NEW(com_vrip, sizeof(struct com_vrip_softc), 95 com_vrip_probe, com_vrip_attach, NULL, NULL); 96 97int 98com_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 114static int 115com_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 129static int 130com_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 already 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 164static void 165com_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(self)->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