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 /******************************************************************************
  *
  * Name: quest-acpica.c - Quest interface for ACPICA
  *
  *****************************************************************************/
 
 
 /******************************************************************************
  *
  * 1. Copyright Notice
  *
  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
  * All rights reserved.
  *
  * 2. License
  *
  * 2.1. This is your license from Intel Corp. under its intellectual property
  * rights.  You may have additional license terms from the party that provided
  * you this software, covering your right to use that party's intellectual
  * property rights.
  *
  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  * copy of the source code appearing in this file ("Covered Code") an
  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  * base code distributed originally by Intel ("Original Intel Code") to copy,
  * make derivatives, distribute, use and display any portion of the Covered
  * Code in any form, with the right to sublicense such rights; and
  *
  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  * license (with the right to sublicense), under only those claims of Intel
  * patents that are infringed by the Original Intel Code, to make, use, sell,
  * offer to sell, and import the Covered Code and derivative works thereof
  * solely to the minimum extent necessary to exer
  se the above copyright
  * license, and in no event shall the patent license extend to any additions
  * to or modifications of the Original Intel Code.  No other license or right
  * is granted directly or by implication, estoppel or otherwise;
  *
  * The above copyright and patent license is granted only if the following
  * conditions are met:
  *
  * 3. Conditions
  *
  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  * Redistribution of source code of any substantial portion of the Covered
  * Code or modification with rights to further distribute source must include
  * the above Copyright Notice, the above License, this list of Conditions,
  * and the following Disclaimer and Export Compliance provision.  In addition,
  * Licensee must cause all Covered Code to which Licensee contributes to
  * contain a file documenting the changes Licensee made to create that Covered
  * Code and the date of any change.  Licensee must include in that file the
  * documentation of any changes made by any predecessor Licensee.  Licensee
  * must include a prominent statement that the modification is derived,
  * directly or indirectly, from Original Intel Code.
  *
  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  * Redistribution of source code of any substantial portion of the Covered
  * Code or modification without rights to further distribute source must
  * include the following Disclaimer and Export Compliance provision in the
  * documentation and/or other materials provided with distribution.  In
  * addition, Licensee may not authorize further sublicense of source of any
  * portion of the Covered Code, and must include terms to the effect that the
  * license from Licensee to its licensee is limited to the intellectual
  * property embodied in the software Licensee provides to its licensee, and
  * not to intellectual property embodied in modifications its licensee may
  * make.
  *
  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  * substantial portion of the Covered Code or modification must reproduce the
  * above Copyright Notice, and the following Disclaimer and Export Compliance
  * provision in the documentation and/or other materials provided with the
  * distribution.
  *
  * 3.4. Intel retains all right, title, and interest in and to the Original
  * Intel Code.
  *
  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  * Intel shall be used in advertising or otherwise to promote the sale, use or
  * other dealings in products derived from or relating to the Covered Code
  * without prior written authorization from Intel.
  *
  * 4. Disclaimer and Export Compliance
  *
  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  * PARTICULAR PURPOSE.
  *
  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  * LIMITED REMEDY.
  *
  * 4.3. Licensee shall not export, either directly or indirectly, any of this
  * software or system incorporating such software without first obtaining any
  * required license or other approval from the U. S. Department of Commerce or
  * any other agency or department of the United States Government.  In the
  * event Licensee exports any such software from the United States or
  * re-exports any such software from a foreign destination, Licensee shall
  * ensure that the distribution and export/re-export of the software is in
  * compliance with all laws, regulations, orders, or other restrictions of the
  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
  * any of its subsidiaries will export/re-export any technical data, process,
  * software, or service, directly or indirectly, to any country for which the
  * United States government or any agency thereof requires an export license,
  * other governmental approval, or letter of assurance, without first obtaining
  * such license, approval or letter.
  *
  *****************************************************************************/
 
 /*                    The Quest Operating System
  *  Portions Copyright (C) 2005-2010  Richard West, Boston University
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /* Ported to Quest by: Matthew Danish (md) */
 
 #include"smp/spinlock.h"
 #include"smp/semaphore.h"
 #include"kernel.h"
 #include"drivers/pci/pci.h"
 #include"drivers/acpi/acpi.h"
 #include"util/printf.h"
 #include"mem/mem.h"
 #include"smp/smp.h"
 #include"smp/apic.h"
 #include "sched/sched.h"
 
 /*
  * OSL Initialization and shutdown primitives
  */
 ACPI_STATUS
 AcpiOsInitialize (void)
 {
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsTerminate (void)
 {
   return AE_OK;
 }
 
 
 
 /*
  * ACPI Table interfaces
  */
 ACPI_PHYSICAL_ADDRESS
 AcpiOsGetRootPointer (void)
 {
   ACPI_SIZE addr;
   if (AcpiFindRootPointer (&addr) == AE_OK)
     return (ACPI_PHYSICAL_ADDRESS) addr;
   else
     return 0;
 }
 
 
 ACPI_STATUS
 AcpiOsPredefinedOverride (const ACPI_PREDEFINED_NAMES * InitVal,
                           ACPI_STRING * NewVal)
 {
   *NewVal = NULL;
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsTableOverride (ACPI_TABLE_HEADER * ExistingTable,
                      ACPI_TABLE_HEADER ** NewTable)
 {
   *NewTable = NULL;
   return AE_OK;
 }
 
 
 
 /*
  * Spinlock primitives
  */
 ACPI_STATUS
 AcpiOsCreateLock (ACPI_SPINLOCK * OutHandle)
 {
   *OutHandle = AcpiOsAllocate (sizeof (spinlock));
   spinlock_init (*OutHandle);
   return AE_OK;
 }
 
 
 void
 AcpiOsDeleteLock (ACPI_SPINLOCK Handle)
 {
   AcpiOsFree (Handle);
   return;
 }
 
 
 ACPI_CPU_FLAGS
 AcpiOsAcquireLock (ACPI_SPINLOCK Handle)
 {
   spinlock_lock (Handle);
   return 0;
 }
 
 
 void
 AcpiOsReleaseLock (ACPI_SPINLOCK Handle, ACPI_CPU_FLAGS Flags)
 {
   spinlock_unlock (Handle);
   return;
 }
 
 
 
 /*
  * Semaphore primitives
  */
 ACPI_STATUS
 AcpiOsCreateSemaphore (UINT32 MaxUnits,
                        UINT32 InitialUnits, ACPI_SEMAPHORE * OutHandle)
 {
   *OutHandle = AcpiOsAllocate (sizeof (semaphore));
   semaphore_init (*OutHandle, MaxUnits, InitialUnits);
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsDeleteSemaphore (ACPI_SEMAPHORE Handle)
 {
   semaphore_destroy (Handle);
   AcpiOsFree (Handle);
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsWaitSemaphore (ACPI_SEMAPHORE Handle, UINT32 Units, UINT16 Timeout)
 {
   semaphore_wait (Handle, Units, Timeout);
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsSignalSemaphore (ACPI_SEMAPHORE Handle, UINT32 Units)
 {
   if (semaphore_signal (Handle, Units) == 0)
     return AE_OK;
   else
     return AE_LIMIT;
 }
 
 
 
 /*
  * Mutex primitives. May be configured to use semaphores instead via
  * ACPI_MUTEX_TYPE (see platform/acenv.h)
  */
 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
 
 ACPI_STATUS
 AcpiOsCreateMutex (ACPI_MUTEX * OutHandle)
 {
   return;
 }
 
 
 void
 AcpiOsDeleteMutex (ACPI_MUTEX Handle)
 {
   return;
 }
 
 
 ACPI_STATUS
 AcpiOsAcquireMutex (ACPI_MUTEX Handle, UINT16 Timeout)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 void
 AcpiOsReleaseMutex (ACPI_MUTEX Handle)
 {
   return;
 }
 
 #endif
 
 
 void *
 AcpiOsAllocate (ACPI_SIZE Size)
 {
   /* use pow2 memory allocator */
   uint8 *ptr;
   pow2_alloc (Size, &ptr);
   return (void *) ptr;
 }
 
 void
 AcpiOsFree (void *Memory)
 {
   pow2_free ((uint8 *) Memory);
 }
 
 void *
 AcpiOsMapMemory (ACPI_PHYSICAL_ADDRESS Where, ACPI_SIZE Length)
 {
   ACPI_PHYSICAL_ADDRESS start_frame = Where & (~0xFFF);
   ACPI_PHYSICAL_ADDRESS end_frame = (Where + Length) & (~0xFFF);
   ACPI_SIZE num_frames = ((end_frame - start_frame) >> 12) + 1;
   void *virt = map_contiguous_virtual_pages (start_frame | 3, num_frames);
   if (virt)
     return (void *) ((uint32) virt | (Where & 0xFFF));        /* mask back in the offset */
   else
     return NULL;
 }
 
 
 void
 AcpiOsUnmapMemory (void *LogicalAddress, ACPI_SIZE Size)
 {
   uint32 start_addr = (uint32) LogicalAddress & (~0xFFF);
   uint32 end_addr = ((uint32) LogicalAddress + Size) & (~0xFFF);
   ACPI_SIZE num_pages = ((end_addr - start_addr) >> 12) + 1;
 
   return unmap_virtual_pages ((void *) start_addr, num_pages);
 }
 
 
 ACPI_STATUS
 AcpiOsGetPhysicalAddress (void *LogicalAddress,
                           ACPI_PHYSICAL_ADDRESS * PhysicalAddress)
 {
   *PhysicalAddress = (ACPI_PHYSICAL_ADDRESS) get_phys_addr (LogicalAddress);
   return AE_OK;
 }
 
 
 
 #if 0
 /*
  * Memory/Object Cache
  */
 ACPI_STATUS
 AcpiOsCreateCache (char *CacheName,
                    UINT16 ObjectSize,
                    UINT16 MaxDepth, ACPI_CACHE_T ** ReturnCache)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 ACPI_STATUS
 AcpiOsDeleteCache (ACPI_CACHE_T * Cache)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 ACPI_STATUS
 AcpiOsPurgeCache (ACPI_CACHE_T * Cache)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 void *
 AcpiOsAcquireObject (ACPI_CACHE_T * Cache)
 {
   return NULL;
 }
 
 
 ACPI_STATUS
 AcpiOsReleaseObject (ACPI_CACHE_T * Cache, void *Object)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 #endif
 
 /*
  * Interrupt handlers
  */
 
 ACPI_OSD_HANDLER acpi_service_routine = NULL;
 void *acpi_service_routine_context;
 
 ACPI_STATUS
 AcpiOsInstallInterruptHandler (UINT32 InterruptNumber,
                                ACPI_OSD_HANDLER ServiceRoutine, void *Context)
 {
   logger_printf ("AcpiOsInstallInterruptHandler (0x%X, 0x%p, 0x%p)\n",
                  InterruptNumber, ServiceRoutine, Context);
 
   acpi_service_routine = ServiceRoutine;
   acpi_service_routine_context = Context;
   //IOAPIC_map_GSI (IRQ_to_GSI (mp_ISA_bus_id, InterruptNumber),
   //                0x29, 0x0100000000000800LL);
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsRemoveInterruptHandler (UINT32 InterruptNumber,
                               ACPI_OSD_HANDLER ServiceRoutine)
 {
   acpi_service_routine = NULL;
   return AE_OK;
 }
 
 
 
 /*
  * Threads and Scheduling
  */
 ACPI_THREAD_ID
 AcpiOsGetThreadId (void)
 {
   /* ACPICA whines about thread ID==0, even though it calls this
    * function during early boot -- far before anything like "threads"
    * could possibly even begin to exist.  Stupid Intel. */
 
   /* After whining it defaults to ThreadId=1.  So let's just shut it
    * up here and now. */
   return str () || 1;
 }
 
 
 ACPI_STATUS
 AcpiOsExecute (ACPI_EXECUTE_TYPE Type,
                ACPI_OSD_EXEC_CALLBACK Function, void *Context)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 void
 AcpiOsWaitEventsComplete (void *Context)
 {
   return;
 }
 
 
 void
 AcpiOsSleep (ACPI_INTEGER Milliseconds)
 {
   sched_usleep (Milliseconds * 1000);
 }
 
 
 void
 AcpiOsStall (UINT32 Microseconds)
 {
   tsc_delay_usec (Microseconds);
 }
 
 
 
 /*
  * Platform and hardware-independent I/O interfaces
  */
 ACPI_STATUS
 AcpiOsReadPort (ACPI_IO_ADDRESS Address, UINT32 * Value, UINT32 Width)
 {
   switch (Width) {
   case 8:
     *Value = inb (Address);
     break;
   case 16:
     *Value = inw (Address);
     break;
   case 32:
     *Value = inl (Address);
     break;
   }
   //logger_printf ("AcpiOsReadPort (0x%.04X, %d) = 0x%X\n", Address, Width, (*Value) & ((1 << Width) - 1));
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsWritePort (ACPI_IO_ADDRESS Address, UINT32 Value, UINT32 Width)
 {
   //logger_printf ("AcpiOsWritePort (0x%.04X, 0x%X, %d)\n", Address, (Value) & ((1 << Width) - 1), Width);
   switch (Width) {
   case 8:
     outb ((UINT8) Value, Address);
     break;
   case 16:
     outw ((UINT16) Value, Address);
     break;
   case 32:
     outl (Value, Address);
     break;
   }
   return AE_OK;
 }
 
 
 
 /*
  * Platform and hardware-independent physical memory interfaces
  */
 ACPI_STATUS
 AcpiOsReadMemory (ACPI_PHYSICAL_ADDRESS Address, UINT32 * Value, UINT32 Width)
 {
   logger_printf ("AcpiOsReadMemory (0x%p, %d)\n", Address, Width);
   if (Width != 8 && Width != 16 && Width != 32)
     return AE_BAD_PARAMETER;
   u32 frame = Address & ~(0xFFF);
   u32 offset = Address - frame;
   u8 *virt = map_virtual_page (frame | 3);
   if (!virt) return AE_NO_MEMORY;
   switch (Width) {
   case 8:
     *Value = *((u8 *) (&virt[offset]));
     break;
   case 16:
     *Value = *((u16 *) (&virt[offset]));
     break;
   case 32:
     *Value = *((u32 *) (&virt[offset]));
     break;
   }
   unmap_virtual_page (virt);
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsWriteMemory (ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width)
 {
   logger_printf ("AcpiOsWriteMemory (0x%p, 0x%p, %d)\n", Address, Value, Width);
   if (Width != 8 && Width != 16 && Width != 32)
     return AE_BAD_PARAMETER;
   u32 frame = Address & ~(0xFFF);
   u32 offset = Address - frame;
   u8 *virt = map_virtual_page (frame | 3);
   if (!virt) return AE_NO_MEMORY;
   switch (Width) {
   case 8:
     *((u8 *) (&virt[offset])) = (u8) Value;
     break;
   case 16:
     *((u16 *) (&virt[offset])) = (u16) Value;
     break;
   case 32:
     *((u32 *) (&virt[offset])) = (u32) Value;
     break;
   }
   unmap_virtual_page (virt);
   return AE_OK;
 }
 
 
 
 /*
  * Platform and hardware-independent PCI configuration space access
  * Note: Can't use "Register" as a parameter, changed to "Reg" --
  * certain compilers complain.
  */
 ACPI_STATUS
 AcpiOsReadPciConfiguration (ACPI_PCI_ID * PciId,
                             UINT32 Reg, void *Value, UINT32 Width)
 {
   pci_config_addr a;
   uint8 v8;
   uint16 v16;
   uint32 v32;
   com1_printf
     ("AcpiOsReadPciConfiguration(%.4X:%.4X:%.4X:%.4X, %.8X, ..., %d)",
      PciId->Segment, PciId->Bus, PciId->Device, PciId->Function, Reg, Width);
   pci_config_addr_init (&a, PciId->Bus, PciId->Device, PciId->Function, Reg);
   switch (Width) {
   case 8:
     v8 = pci_read_byte (a);
     *((ACPI_INTEGER *) Value) = (ACPI_INTEGER) v8;
     break;
   case 16:
     v16 = pci_read_word (a);
     *((ACPI_INTEGER *) Value) = (ACPI_INTEGER) v16;
     break;
   case 32:
     v32 = pci_read_dword (a);
     *((ACPI_INTEGER *) Value) = (ACPI_INTEGER) v32;
     break;
   default:
     com1_printf (" = error\n");
     return AE_BAD_PARAMETER;
   }
   com1_printf (" = 0x%x\n", *((ACPI_INTEGER *) Value));
   return AE_OK;
 }
 
 
 ACPI_STATUS
 AcpiOsWritePciConfiguration (ACPI_PCI_ID * PciId,
                              UINT32 Reg, ACPI_INTEGER Value, UINT32 Width)
 {
   pci_config_addr a;
   com1_printf ("AcpiOsWritePciConfiguration\n");
   pci_config_addr_init (&a, PciId->Bus, PciId->Device, PciId->Function, Reg);
   switch (Width) {
   case 8:
     pci_write_byte (a, (uint8) Value);
     break;
   case 16:
     pci_write_word (a, (uint16) Value);
     break;
   case 32:
     pci_write_dword (a, (uint32) Value);
     break;
   default:
     return AE_BAD_PARAMETER;
   }
   return AE_OK;
 }
 
 
 
 /*
  * Interim function needed for PCI IRQ routing
  */
 void
 AcpiOsDerivePciId (ACPI_HANDLE Rhandle,
                    ACPI_HANDLE Chandle, ACPI_PCI_ID ** PciId)
 {
   com1_printf ("AcpiOsDerivePciId\n");
   return;
 }
 
 
 
 /*
  * Miscellaneous
  */
 ACPI_STATUS
 AcpiOsValidateInterface (char *Interface)
 {
   logger_printf ("AcpiOsValidateInterface (%s)\n", Interface);
   return AE_SUPPORT;
 }
 
 
 BOOLEAN
 AcpiOsReadable (void *Pointer, ACPI_SIZE Length)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 BOOLEAN
 AcpiOsWritable (void *Pointer, ACPI_SIZE Length)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 UINT64
 AcpiOsGetTimer (void)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 ACPI_STATUS
 AcpiOsSignal (UINT32 Function, void *Info)
 {
   return AE_NOT_IMPLEMENTED;
 }
 
 
 
 /*
  * Debug print routines
  */
 void ACPI_INTERNAL_VAR_XFACE
 AcpiOsPrintf (const char *Fmt, ...)
 {
   va_list Args;
   va_start (Args, Fmt);
   AcpiOsVprintf (Fmt, Args);
   va_end (Args);
 }
 
 
 void
 AcpiOsVprintf (const char *Format, va_list Args)
 {
   fun_vprintf (com1_putc, Format, Args);
 }
 
 
 void
 AcpiOsRedirectOutput (void *Destination)
 {
   return;
 }
 
 
 
 /*
  * Debug input
  */
 UINT32
 AcpiOsGetLine (char *Buffer)
 {
   return 0;
 }
 
 
 
 /*
  * Directory manipulation
  */
 void *
 AcpiOsOpenDirectory (char *Pathname,
                      char *WildcardSpec, char RequestedFileType)
 {
   return NULL;
 }
 
 char *
 AcpiOsGetNextFilename (void *DirHandle)
 {
   return NULL;
 }
 
 
 void
 AcpiOsCloseDirectory (void *DirHandle)
 {
   return;
 }
 
 /*
  * Local Variables:
  * indent-tabs-mode: nil
  * mode: C
  * c-file-style: "gnu"
  * c-basic-offset: 2
  * End:
  */
 
 /* vi: set et sw=2 sts=2: */