sys/dev/acpica/acpi_sony/acpi_sony.c

   1 /*-
   2  * Copyright (c) 2004 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  * $FreeBSD: src/sys/dev/acpi_support/acpi_sony.c,v 1.14 2010/02/07 18:36:30 gavin Exp $
  27  */
  28
  29 #include "opt_acpi.h"
  30 #include <sys/param.h>
  31 #include <sys/kernel.h>
  32 #include <sys/bus.h>
  33
  34 #include "acpi.h"
  35
  36 #include "acpi_if.h"
  37 #include <sys/module.h>
  38 #include <dev/acpica/acpivar.h>
  39 #include <sys/sysctl.h>
  40
  41 #define _COMPONENT      ACPI_OEM
  42 ACPI_MODULE_NAME("Sony")
  43
  44 #define ACPI_SONY_GET_PID "GPID"
  45
  46 /*
  47  * SNY5001
  48  *   This is the ACPI handle for the "Sony Notebook Control" driver under
  49  *   Windows.
  50  *   It provides several methods within the ACPI namespace, including:
  51  *  [GS]BRT [GS]PBR [GS]CTR [GS]PCR [GS]CMI [CDPW GCDP]? GWDP PWAK PWRN
  52  *
  53  * SNY6001
  54  *   This is the ACPI handle for the "Sony Programmable I/O" driver under
  55  *   Windows.
  56  *   It is not yet supported by this driver, but provides control over the
  57  *   power to the bluetooth, built-in camera and HSDPA modem devices in some
  58  *   laptops, and also allows some control of the fan speed.
  59  */
  60
  61 struct acpi_sony_softc {
  62         int pid;
  63         struct sysctl_ctx_list  sysctl_ctx;
  64         struct sysctl_oid       *sysctl_tree;
  65 };
  66 static struct acpi_sony_name_list
  67 {
  68         char *nodename;
  69         char *getmethod;
  70         char *setmethod;
  71         char *comment;
  72 } acpi_sony_oids[] = {
  73         { "brightness", "GBRT", "SBRT", "Display Brightness"},
  74         { "brightness_default", "GPBR", "SPBR", "Default Display Brightness"},
  75         { "contrast", "GCTR", "SCTR", "Display Contrast"},
  76         { "bass_gain", "GMGB", "SMGB", "Multimedia Bass Gain"},
  77         { "pcr", "GPCR", "SPCR", "???"},
  78 #if 0
  79         { "cmi", "GCMI", "SCMI", "???"},
  80 #endif
  81         { "wdp", "GWDP", NULL, "???"},
  82         { "cdp", "GCDP", "CDPW", "CD Power"},  /*shares [\GL03]&0x8 flag*/
  83         { "azp", "GAZP", "AZPW", "Audio Power"},
  84         { "lnp", "GLNP", "LNPW", "LAN Power"},
  85         { NULL, NULL, NULL }
  86 };
  87
  88 static int      acpi_sony_probe(device_t dev);
  89 static int      acpi_sony_attach(device_t dev);
  90 static int      acpi_sony_detach(device_t dev);
  91 static int      sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS);
  92
  93 static device_method_t acpi_sony_methods[] = {
  94         /* Device interface */
  95         DEVMETHOD(device_probe, acpi_sony_probe),
  96         DEVMETHOD(device_attach, acpi_sony_attach),
  97         DEVMETHOD(device_detach, acpi_sony_detach),
  98
  99         DEVMETHOD_END
 100 };
 101
 102 static driver_t acpi_sony_driver = {
 103         "acpi_sony",
 104         acpi_sony_methods,
 105         sizeof(struct acpi_sony_softc),
 106 };
 107
 108 static devclass_t acpi_sony_devclass;
 109
 110 DRIVER_MODULE(acpi_sony, acpi, acpi_sony_driver, acpi_sony_devclass,
 111     NULL, NULL);
 112 MODULE_DEPEND(acpi_sony, acpi, 1, 1, 1);
 113 static char    *sny_id[] = {"SNY5001", NULL};
 114
 115 static int
 116 acpi_sony_probe(device_t dev)
 117 {
 118         int ret = ENXIO;
 119
 120         if (ACPI_ID_PROBE(device_get_parent(dev), dev, sny_id)) {
 121                 device_set_desc(dev, "Sony notebook controller");
 122                 ret = 0;
 123         }
 124         return (ret);
 125 }
 126
 127 static int
 128 acpi_sony_attach(device_t dev)
 129 {
 130         struct acpi_sony_softc *sc;
 131         struct acpi_softc       *acpi_sc;
 132         int i;
 133
 134         sc = device_get_softc(dev);
 135         acpi_sc = acpi_device_get_parent_softc(dev);
 136         acpi_GetInteger(acpi_get_handle(dev), ACPI_SONY_GET_PID, &sc->pid);
 137         device_printf(dev, "PID %x\n", sc->pid);
 138         sysctl_ctx_init(&sc->sysctl_ctx);
 139         sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
 140                 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
 141                 "sony", CTLFLAG_RD, 0, "");
 142         for (i = 0 ; acpi_sony_oids[i].nodename != NULL; i++){
 143                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 144                     SYSCTL_CHILDREN(sc->sysctl_tree),
 145                     i, acpi_sony_oids[i].nodename , CTLTYPE_INT |
 146                     ((acpi_sony_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
 147                     dev, i, sysctl_acpi_sony_gen_handler, "I",
 148                     acpi_sony_oids[i].comment);
 149         }
 150         return (0);
 151 }
 152
 153 static int
 154 acpi_sony_detach(device_t dev)
 155 {
 156         struct acpi_sony_softc *sc;
 157
 158         sc = device_get_softc(dev);
 159         sysctl_ctx_free(&sc->sysctl_ctx);
 160         return (0);
 161 }
 162
 163 #if 0
 164 static int
 165 acpi_sony_suspend(device_t dev)
 166 {
 167         struct acpi_sony_softc *sc = device_get_softc(dev);
 168         return (0);
 169 }
 170
 171 static int
 172 acpi_sony_resume(device_t dev)
 173 {
 174         return (0);
 175 }
 176 #endif
 177
 178 static int
 179 sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS)
 180 {
 181         device_t        dev = arg1;
 182         int     function = oidp->oid_arg2;
 183         int             error = 0, val;
 184
 185         acpi_GetInteger(acpi_get_handle(dev),
 186             acpi_sony_oids[function].getmethod, &val);
 187         error = sysctl_handle_int(oidp, &val, 0, req);
 188         if (error || !req->newptr || !acpi_sony_oids[function].setmethod)
 189                 return (error);
 190         acpi_SetInteger(acpi_get_handle(dev),
 191             acpi_sony_oids[function].setmethod, val);
 192         return (0);
 193 }