1 /* $NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Mihai Chelaru <kefren (at) netbsd.ro> 5 * 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * Driver for Abit uGuru (interface is inspired from it.c and nslm7x.c) 30 * Inspired by olle sandberg linux driver as Abit didn't care to release docs 31 * Support for uGuru 2005 from Louis Kruger and Hans de Goede linux driver 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/proc.h> 41 #include <sys/device.h> 42 #include <sys/errno.h> 43 #include <sys/conf.h> 44 #include <sys/envsys.h> 45 #include <sys/time.h> 46 47 #include <sys/bus.h> 48 #include <sys/intr.h> 49 50 #include <dev/isa/isareg.h> 51 #include <dev/isa/isavar.h> 52 53 #include <dev/sysmon/sysmonvar.h> 54 55 #include <dev/ic/ugreg.h> 56 #include <dev/ic/ugvar.h> 57 58 /* autoconf(9) functions */ 59 static int ug_isa_match(device_t, cfdata_t, void *); 60 static void ug_isa_attach(device_t, device_t, void *); 61 static int ug_isa_detach(device_t, int); 62 63 CFATTACH_DECL_NEW(ug_isa, sizeof(struct ug_softc), 64 ug_isa_match, ug_isa_attach, ug_isa_detach, NULL); 65 66 extern uint8_t ug_ver; 67 68 static int 69 ug_isa_match(device_t parent, cfdata_t match, void *aux) 70 { 71 struct isa_attach_args *ia = aux; 72 bus_space_handle_t bsh; 73 uint8_t valc, vald; 74 75 if (ia->ia_nio < 1) /* need base addr */ 76 return 0; 77 78 if (ISA_DIRECT_CONFIG(ia)) 79 return 0; 80 81 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 82 return 0; 83 84 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 8, 0, &bsh)) 85 return 0; 86 87 valc = bus_space_read_1(ia->ia_iot, bsh, UG_CMD); 88 vald = bus_space_read_1(ia->ia_iot, bsh, UG_DATA); 89 90 ug_ver = 0; 91 92 /* Check for uGuru 2003 */ 93 94 if (((vald == 0) || (vald == 8)) && (valc == 0xAC)) 95 ug_ver = 1; 96 97 /* Check for uGuru 2005 */ 98 if (ug2_sync(ia->ia_iot, bsh) == 1) 99 ug_ver = 2; 100 101 /* unmap, prepare ia and bye */ 102 bus_space_unmap(ia->ia_iot, bsh, 8); 103 104 if (ug_ver != 0) { 105 ia->ia_nio = 1; 106 ia->ia_io[0].ir_size = 8; 107 ia->ia_niomem = 0; 108 ia->ia_nirq = 0; 109 ia->ia_ndrq = 0; 110 return 1; 111 } 112 113 return 0; 114 115 } 116 117 static void 118 ug_isa_attach(device_t parent, device_t self, void *aux) 119 { 120 struct ug_softc *sc = device_private(self); 121 struct isa_attach_args *ia = aux; 122 int i; 123 124 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 125 8, 0, &sc->sc_ioh)) { 126 aprint_error(": can't map i/o space\n"); 127 return; 128 } 129 130 ia->ia_iot = sc->sc_iot; 131 sc->version = ug_ver; 132 133 if (sc->version == 2) { 134 ug2_attach(self); 135 return; 136 } 137 138 aprint_normal(": Abit uGuru system monitor\n"); 139 140 if (!ug_reset(sc)) 141 aprint_error_dev(self, "reset failed.\n"); 142 143 ug_setup_sensors(sc); 144 sc->sc_sme = sysmon_envsys_create(); 145 146 for (i = 0; i < UG_NUM_SENSORS; i++) { 147 if (sysmon_envsys_sensor_attach(sc->sc_sme, 148 &sc->sc_sensor[i])) { 149 sysmon_envsys_destroy(sc->sc_sme); 150 sc->sc_sme = NULL; 151 goto out; 152 } 153 } 154 155 sc->sc_sme->sme_cookie = sc; 156 sc->sc_sme->sme_refresh = ug_refresh; 157 158 if (sysmon_envsys_register(sc->sc_sme)) { 159 aprint_error_dev(self, "unable to register with sysmon\n"); 160 sysmon_envsys_destroy(sc->sc_sme); 161 sc->sc_sme = NULL; 162 goto out; 163 } 164 165 return; 166 167 out: 168 bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8); 169 170 } 171 172 static int 173 ug_isa_detach(device_t self, int flags) 174 { 175 struct ug_softc *sc = device_private(self); 176 177 if (sc->sc_sme != NULL) 178 sysmon_envsys_unregister(sc->sc_sme); 179 bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8); 180 return 0; 181 } 182 183
Indexes created Sat Sep 20 22:09:52 GMT 2025