ig4_acpi.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 2016 Oleksandr Tymoshenko <gonzo@FreeBSD.org>
    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 
   32 #include <sys/param.h>
   33 #include <sys/bus.h>
   34 #include <sys/kernel.h>
   35 #include <sys/module.h>
   36 #include <sys/proc.h>
   37 #include <sys/rman.h>
   38 
   39 #include <machine/bus.h>
   40 #include <machine/resource.h>
   41 
   42 #include <contrib/dev/acpica/include/acpi.h>
   43 #include <contrib/dev/acpica/include/accommon.h>
   44 
   45 #include <dev/acpica/acpivar.h>
   46 #include <dev/iicbus/iiconf.h>
   47 
   48 #include <dev/ichiic/ig4_reg.h>
   49 #include <dev/ichiic/ig4_var.h>
   50 
   51 static int      ig4iic_acpi_probe(device_t dev);
   52 static int      ig4iic_acpi_attach(device_t dev);
   53 static int      ig4iic_acpi_detach(device_t dev);
   54 
   55 static char *ig4iic_ids[] = {
   56         "INT33C2",
   57         "INT33C3",
   58         "INT3432",
   59         "INT3433",
   60         "80860F41",
   61         "808622C1",
   62         "AMDI0510",
   63         "AMDI0010",
   64         "AMD0010",
   65         "APMC0D0F",
   66         NULL
   67 };
   68 
   69 static int
   70 ig4iic_acpi_probe(device_t dev)
   71 {
   72         int rv;
   73 
   74         if (acpi_disabled("ig4iic"))
   75                 return (ENXIO);
   76         rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ig4iic_ids, NULL);
   77         if (rv > 0)
   78                 return (rv);
   79 
   80         device_set_desc(dev, "Designware I2C Controller");
   81         return (rv);
   82 }
   83 
   84 static int
   85 ig4iic_acpi_attach(device_t dev)
   86 {
   87         ig4iic_softc_t  *sc;
   88         int error;
   89 
   90         sc = device_get_softc(dev);
   91 
   92         sc->dev = dev;
   93         /* All the HIDs matched are Atom SOCs. */
   94         sc->version = IG4_ATOM;
   95         sc->regs_rid = 0;
   96         sc->regs_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
   97                                           &sc->regs_rid, RF_ACTIVE);
   98         if (sc->regs_res == NULL) {
   99                 device_printf(dev, "unable to map registers\n");
  100                 ig4iic_acpi_detach(dev);
  101                 return (ENXIO);
  102         }
  103         sc->intr_rid = 0;
  104         sc->intr_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
  105                                           &sc->intr_rid, RF_SHAREABLE | RF_ACTIVE);
  106         if (sc->intr_res == NULL) {
  107                 device_printf(dev, "unable to map interrupt\n");
  108                 ig4iic_acpi_detach(dev);
  109                 return (ENXIO);
  110         }
  111         sc->platform_attached = 1;
  112 
  113         error = ig4iic_attach(sc);
  114         if (error)
  115                 ig4iic_acpi_detach(dev);
  116 
  117         return (error);
  118 }
  119 
  120 static int
  121 ig4iic_acpi_detach(device_t dev)
  122 {
  123         ig4iic_softc_t *sc = device_get_softc(dev);
  124         int error;
  125 
  126         if (sc->platform_attached) {
  127                 error = ig4iic_detach(sc);
  128                 if (error)
  129                         return (error);
  130                 sc->platform_attached = 0;
  131         }
  132 
  133         if (sc->intr_res) {
  134                 bus_release_resource(dev, SYS_RES_IRQ,
  135                                      sc->intr_rid, sc->intr_res);
  136                 sc->intr_res = NULL;
  137         }
  138         if (sc->regs_res) {
  139                 bus_release_resource(dev, SYS_RES_MEMORY,
  140                                      sc->regs_rid, sc->regs_res);
  141                 sc->regs_res = NULL;
  142         }
  143 
  144         return (0);
  145 }
  146 
  147 static int
  148 ig4iic_acpi_suspend(device_t dev)
  149 {
  150         ig4iic_softc_t *sc = device_get_softc(dev);
  151 
  152         return (ig4iic_suspend(sc));
  153 }
  154 
  155 static int
  156 ig4iic_acpi_resume(device_t dev)
  157 {
  158         ig4iic_softc_t *sc  = device_get_softc(dev);
  159 
  160         return (ig4iic_resume(sc));
  161 }
  162 
  163 static device_method_t ig4iic_acpi_methods[] = {
  164         /* Device interface */
  165         DEVMETHOD(device_probe, ig4iic_acpi_probe),
  166         DEVMETHOD(device_attach, ig4iic_acpi_attach),
  167         DEVMETHOD(device_detach, ig4iic_acpi_detach),
  168         DEVMETHOD(device_suspend, ig4iic_acpi_suspend),
  169         DEVMETHOD(device_resume, ig4iic_acpi_resume),
  170 
  171         /* Bus interface */
  172         DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
  173         DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
  174         DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
  175         DEVMETHOD(bus_release_resource, bus_generic_release_resource),
  176         DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
  177         DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
  178         DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
  179 
  180         /* iicbus interface */
  181         DEVMETHOD(iicbus_transfer, ig4iic_transfer),
  182         DEVMETHOD(iicbus_reset, ig4iic_reset),
  183         DEVMETHOD(iicbus_callback, ig4iic_callback),
  184 
  185         DEVMETHOD_END
  186 };
  187 
  188 static driver_t ig4iic_acpi_driver = {
  189         "ig4iic",
  190         ig4iic_acpi_methods,
  191         sizeof(struct ig4iic_softc),
  192 };
  193 
  194 DRIVER_MODULE_ORDERED(ig4iic, acpi, ig4iic_acpi_driver, 0, 0, SI_ORDER_ANY);
  195 MODULE_DEPEND(ig4iic, acpi, 1, 1, 1);
  196 ACPI_PNP_INFO(ig4iic_ids);

Cache object: 73a010d260e334d796de6ae0981485ac

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/ichiic/ig4_acpi.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/ichiic/ig4_acpi.c