1 /*- 2 * Copyright (c) 2013 Takanori Watanabe 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_acpi.h" 31 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 35 #include <contrib/dev/acpica/include/acpi.h> 36 37 #include "acpi_if.h" 38 #include <sys/module.h> 39 #include <dev/acpica/acpivar.h> 40 #include <sys/sysctl.h> 41 static int sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS); 42 43 44 static struct acpi_rapidstart_name_list 45 { 46 char *nodename; 47 char *getmethod; 48 char *setmethod; 49 char *comment; 50 } acpi_rapidstart_oids[] ={ 51 {"ffs","GFFS","SFFS","Flash Fast Store Flag"}, 52 {"ftv","GFTV","SFTV","Time value"}, 53 {NULL, NULL, NULL, NULL} 54 }; 55 56 struct acpi_rapidstart_softc { 57 struct sysctl_ctx_list *sysctl_ctx; 58 struct sysctl_oid *sysctl_tree; 59 60 }; 61 static char *rapidstart_ids[] = {"INT3392", NULL}; 62 static int 63 acpi_rapidstart_probe(device_t dev) 64 { 65 int rv; 66 67 if (acpi_disabled("rapidstart") || 68 device_get_unit(dev) != 0) 69 return (ENXIO); 70 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, rapidstart_ids, NULL); 71 if (rv <= 0) 72 device_set_desc(dev, "Intel Rapid Start ACPI device"); 73 74 return (rv); 75 76 } 77 78 static int 79 acpi_rapidstart_attach(device_t dev) 80 { 81 struct acpi_rapidstart_softc *sc; 82 int i; 83 84 sc = device_get_softc(dev); 85 86 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 87 sc->sysctl_tree = device_get_sysctl_tree(dev); 88 for (i = 0 ; acpi_rapidstart_oids[i].nodename != NULL; i++){ 89 if (acpi_rapidstart_oids[i].setmethod != NULL) { 90 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 91 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 92 i, acpi_rapidstart_oids[i].nodename, 93 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 94 dev, i, sysctl_acpi_rapidstart_gen_handler, "I", 95 acpi_rapidstart_oids[i].comment); 96 } else { 97 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 98 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 99 i, acpi_rapidstart_oids[i].nodename, 100 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 101 dev, i, sysctl_acpi_rapidstart_gen_handler, "I", 102 acpi_rapidstart_oids[i].comment); 103 } 104 } 105 return (0); 106 } 107 108 static int 109 sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS) 110 { 111 device_t dev = arg1; 112 int function = oidp->oid_arg2; 113 int error = 0, val; 114 115 acpi_GetInteger(acpi_get_handle(dev), 116 acpi_rapidstart_oids[function].getmethod, &val); 117 error = sysctl_handle_int(oidp, &val, 0, req); 118 if (error || !req->newptr || !acpi_rapidstart_oids[function].setmethod) 119 return (error); 120 acpi_SetInteger(acpi_get_handle(dev), 121 acpi_rapidstart_oids[function].setmethod, val); 122 return (0); 123 } 124 125 static device_method_t acpi_rapidstart_methods[] = { 126 /* Device interface */ 127 DEVMETHOD(device_probe, acpi_rapidstart_probe), 128 DEVMETHOD(device_attach, acpi_rapidstart_attach), 129 130 DEVMETHOD_END 131 }; 132 133 static driver_t acpi_rapidstart_driver = { 134 "acpi_rapidstart", 135 acpi_rapidstart_methods, 136 sizeof(struct acpi_rapidstart_softc), 137 }; 138 139 static devclass_t acpi_rapidstart_devclass; 140 141 DRIVER_MODULE(acpi_rapidstart, acpi, acpi_rapidstart_driver, acpi_rapidstart_devclass, 142 0, 0); 143 MODULE_DEPEND(acpi_rapidstart, acpi, 1, 1, 1); 144 145