1 files changed, 282 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/events/evsci.c b/sys/contrib/dev/acpica/components/events/evsci.c
new file mode 100644
index 0000000..70920a5
--- /dev/null
+++ b/sys/contrib/dev/acpica/components/events/evsci.c
@@ -0,0 +1,282 @@
+/*******************************************************************************
+ *
+ * Module Name: evsci - System Control Interrupt configuration and
+ *                      legacy to ACPI mode state transition functions
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acevents.h>
+
+
+#define _COMPONENT          ACPI_EVENTS
+        ACPI_MODULE_NAME    ("evsci")
+
+#if (!ACPI_REDUCED_HARDWARE) /* Entire module */
+
+/* Local prototypes */
+
+static UINT32 ACPI_SYSTEM_XFACE
+AcpiEvSciXruptHandler (
+    void                    *Context);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvSciDispatch
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers.
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiEvSciDispatch (
+    void)
+{
+    ACPI_SCI_HANDLER_INFO   *SciHandler;
+    ACPI_CPU_FLAGS          Flags;
+    UINT32                  IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
+
+
+    ACPI_FUNCTION_NAME (EvSciDispatch);
+
+
+    /* Are there any host-installed SCI handlers? */
+
+    if (!AcpiGbl_SciHandlerList)
+    {
+        return (IntStatus);
+    }
+
+    Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+
+    /* Invoke all host-installed SCI handlers */
+
+    SciHandler = AcpiGbl_SciHandlerList;
+    while (SciHandler)
+    {
+        /* Invoke the installed handler (at interrupt level) */
+
+        IntStatus |= SciHandler->Address (
+            SciHandler->Context);
+
+        SciHandler = SciHandler->Next;
+    }
+
+    AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+    return (IntStatus);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvSciXruptHandler
+ *
+ * PARAMETERS:  Context   - Calling Context
+ *
+ * RETURN:      Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Interrupt handler that will figure out what function or
+ *              control method to call to deal with a SCI.
+ *
+ ******************************************************************************/
+
+static UINT32 ACPI_SYSTEM_XFACE
+AcpiEvSciXruptHandler (
+    void                    *Context)
+{
+    ACPI_GPE_XRUPT_INFO     *GpeXruptList = Context;
+    UINT32                  InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
+
+
+    ACPI_FUNCTION_TRACE (EvSciXruptHandler);
+
+
+    /*
+     * We are guaranteed by the ACPICA initialization/shutdown code that
+     * if this interrupt handler is installed, ACPI is enabled.
+     */
+
+    /*
+     * Fixed Events:
+     * Check for and dispatch any Fixed Events that have occurred
+     */
+    InterruptHandled |= AcpiEvFixedEventDetect ();
+
+    /*
+     * General Purpose Events:
+     * Check for and dispatch any GPEs that have occurred
+     */
+    InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
+
+    /* Invoke all host-installed SCI handlers */
+
+    InterruptHandled |= AcpiEvSciDispatch ();
+
+    AcpiSciCount++;
+    return_UINT32 (InterruptHandled);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvGpeXruptHandler
+ *
+ * PARAMETERS:  Context   - Calling Context
+ *
+ * RETURN:      Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Handler for GPE Block Device interrupts
+ *
+ ******************************************************************************/
+
+UINT32 ACPI_SYSTEM_XFACE
+AcpiEvGpeXruptHandler (
+    void                    *Context)
+{
+    ACPI_GPE_XRUPT_INFO     *GpeXruptList = Context;
+    UINT32                  InterruptHandled = ACPI_INTERRUPT_NOT_HANDLED;
+
+
+    ACPI_FUNCTION_TRACE (EvGpeXruptHandler);
+
+
+    /*
+     * We are guaranteed by the ACPICA initialization/shutdown code that
+     * if this interrupt handler is installed, ACPI is enabled.
+     */
+
+    /* GPEs: Check for and dispatch any GPEs that have occurred */
+
+    InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
+    return_UINT32 (InterruptHandled);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    AcpiEvInstallSciHandler
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Installs SCI handler.
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiEvInstallSciHandler (
+    void)
+{
+    UINT32                  Status = AE_OK;
+
+
+    ACPI_FUNCTION_TRACE (EvInstallSciHandler);
+
+
+    Status = AcpiOsInstallInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
+                AcpiEvSciXruptHandler, AcpiGbl_GpeXruptListHead);
+    return_ACPI_STATUS (Status);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    AcpiEvRemoveAllSciHandlers
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      AE_OK if handler uninstalled, AE_ERROR if handler was not
+ *              installed to begin with
+ *
+ * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
+ *              taken. Remove all host-installed SCI handlers.
+ *
+ * Note:  It doesn't seem important to disable all events or set the event
+ *        enable registers to their original values. The OS should disable
+ *        the SCI interrupt level when the handler is removed, so no more
+ *        events will come in.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvRemoveAllSciHandlers (
+    void)
+{
+    ACPI_SCI_HANDLER_INFO   *SciHandler;
+    ACPI_CPU_FLAGS          Flags;
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_TRACE (EvRemoveAllSciHandlers);
+
+
+    /* Just let the OS remove the handler and disable the level */
+
+    Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
+                AcpiEvSciXruptHandler);
+
+    if (!AcpiGbl_SciHandlerList)
+    {
+        return (Status);
+    }
+
+    Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
+
+    /* Free all host-installed SCI handlers */
+
+    while (AcpiGbl_SciHandlerList)
+    {
+        SciHandler = AcpiGbl_SciHandlerList;
+        AcpiGbl_SciHandlerList = SciHandler->Next;
+        ACPI_FREE (SciHandler);
+    }
+
+    AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
+    return_ACPI_STATUS (Status);
+}
+
+#endif /* !ACPI_REDUCED_HARDWARE */