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 #include "opt_acpi.h" 29 #include <sys/param.h> 30 #include <sys/kernel.h> 31 #include <sys/bus.h> 32 33 #include <contrib/dev/acpica/include/acpi.h> 34 35 #include "acpi_if.h" 36 #include <sys/module.h> 37 #include <dev/acpica/acpivar.h> 38 #include <sys/sysctl.h> 39 static int sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS); 40 41 static struct acpi_rapidstart_name_list 42 { 43 char *nodename; 44 char *getmethod; 45 char *setmethod; 46 char *comment; 47 } acpi_rapidstart_oids[] ={ 48 {"ffs","GFFS","SFFS","Flash Fast Store Flag"}, 49 {"ftv","GFTV","SFTV","Time value"}, 50 {NULL, NULL, NULL, NULL} 51 }; 52 53 struct acpi_rapidstart_softc { 54 struct sysctl_ctx_list *sysctl_ctx; 55 struct sysctl_oid *sysctl_tree; 56 57 }; 58 static char *rapidstart_ids[] = {"INT3392", NULL}; 59 static int 60 acpi_rapidstart_probe(device_t dev) 61 { 62 int rv; 63 64 if (acpi_disabled("rapidstart") || 65 device_get_unit(dev) != 0) 66 return (ENXIO); 67 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, rapidstart_ids, NULL); 68 if (rv <= 0) 69 device_set_desc(dev, "Intel Rapid Start ACPI device"); 70 71 return (rv); 72 73 } 74 75 static int 76 acpi_rapidstart_attach(device_t dev) 77 { 78 struct acpi_rapidstart_softc *sc; 79 int i; 80 81 sc = device_get_softc(dev); 82 83 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 84 sc->sysctl_tree = device_get_sysctl_tree(dev); 85 for (i = 0 ; acpi_rapidstart_oids[i].nodename != NULL; i++){ 86 if (acpi_rapidstart_oids[i].setmethod != NULL) { 87 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 88 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 89 i, acpi_rapidstart_oids[i].nodename, 90 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 91 dev, i, sysctl_acpi_rapidstart_gen_handler, "I", 92 acpi_rapidstart_oids[i].comment); 93 } else { 94 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 95 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 96 i, acpi_rapidstart_oids[i].nodename, 97 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 98 dev, i, sysctl_acpi_rapidstart_gen_handler, "I", 99 acpi_rapidstart_oids[i].comment); 100 } 101 } 102 return (0); 103 } 104 105 static int 106 sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS) 107 { 108 device_t dev = arg1; 109 int function = oidp->oid_arg2; 110 int error = 0, val; 111 112 acpi_GetInteger(acpi_get_handle(dev), 113 acpi_rapidstart_oids[function].getmethod, &val); 114 error = sysctl_handle_int(oidp, &val, 0, req); 115 if (error || !req->newptr || !acpi_rapidstart_oids[function].setmethod) 116 return (error); 117 acpi_SetInteger(acpi_get_handle(dev), 118 acpi_rapidstart_oids[function].setmethod, val); 119 return (0); 120 } 121 122 static device_method_t acpi_rapidstart_methods[] = { 123 /* Device interface */ 124 DEVMETHOD(device_probe, acpi_rapidstart_probe), 125 DEVMETHOD(device_attach, acpi_rapidstart_attach), 126 127 DEVMETHOD_END 128 }; 129 130 static driver_t acpi_rapidstart_driver = { 131 "acpi_rapidstart", 132 acpi_rapidstart_methods, 133 sizeof(struct acpi_rapidstart_softc), 134 }; 135 136 DRIVER_MODULE(acpi_rapidstart, acpi, acpi_rapidstart_driver, 0, 0); 137 MODULE_DEPEND(acpi_rapidstart, acpi, 1, 1, 1); 138