diff options
Diffstat (limited to 'DuetPkg/Library')
| -rw-r--r-- | DuetPkg/Library/DuetSerialIoLib/DuetSerialIoLib.inf | 36 | ||||
| -rw-r--r-- | DuetPkg/Library/DuetSerialIoLib/SerialPortLib.c | 160 | ||||
| -rw-r--r-- | DuetPkg/Library/DuetTimerLib/DuetTimerLib.inf | 68 | ||||
| -rw-r--r-- | DuetPkg/Library/DuetTimerLib/x86TimerLib.c | 252 |
4 files changed, 516 insertions, 0 deletions
diff --git a/DuetPkg/Library/DuetSerialIoLib/DuetSerialIoLib.inf b/DuetPkg/Library/DuetSerialIoLib/DuetSerialIoLib.inf new file mode 100644 index 0000000000..07a7ee9fa2 --- /dev/null +++ b/DuetPkg/Library/DuetSerialIoLib/DuetSerialIoLib.inf @@ -0,0 +1,36 @@ +#/**@file
+# This library instance produce SerialIo library class for DUET platform.
+#
+# Copyright (c) 2006 - 2007, Intel Corporation
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DuetSerialPortLib
+ FILE_GUID = 1B25AF84-1EA8-4b52-894E-BFA6880B97FF
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SerialPortLib
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x0002000A
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ SerialPortLib
+ IoLib
+
+[Sources.common]
+ SerialPortLib.c
+
+
diff --git a/DuetPkg/Library/DuetSerialIoLib/SerialPortLib.c b/DuetPkg/Library/DuetSerialIoLib/SerialPortLib.c new file mode 100644 index 0000000000..518172ae50 --- /dev/null +++ b/DuetPkg/Library/DuetSerialIoLib/SerialPortLib.c @@ -0,0 +1,160 @@ +/** @file
+ Serial I/O Port library functions with no library constructor/destructor
+
+ Copyright (c) 2006, Intel Corporation
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+#include <Base.h>
+
+#include <Library/IoLib.h>
+#include <Library/SerialPortLib.h>
+
+//---------------------------------------------
+// UART Register Offsets
+//---------------------------------------------
+#define BAUD_LOW_OFFSET 0x00
+#define BAUD_HIGH_OFFSET 0x01
+#define IER_OFFSET 0x01
+#define LCR_SHADOW_OFFSET 0x01
+#define FCR_SHADOW_OFFSET 0x02
+#define IR_CONTROL_OFFSET 0x02
+#define FCR_OFFSET 0x02
+#define EIR_OFFSET 0x02
+#define BSR_OFFSET 0x03
+#define LCR_OFFSET 0x03
+#define MCR_OFFSET 0x04
+#define LSR_OFFSET 0x05
+#define MSR_OFFSET 0x06
+
+//---------------------------------------------
+// UART Register Bit Defines
+//---------------------------------------------
+#define LSR_TXRDY 0x20
+#define LSR_RXDA 0x01
+#define DLAB 0x01
+
+UINT16 gComBase = 0x3f8;
+UINTN gBps = 115200;
+UINT8 gData = 8;
+UINT8 gStop = 1;
+UINT8 gParity = 0;
+UINT8 gBreakSet = 0;
+/*
+
+ Programmed hardware of Serial port.
+
+ @return Always return EFI_UNSUPPORTED.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+ VOID
+ )
+{
+ UINTN Divisor;
+ UINT8 OutputData;
+ UINT8 Data;
+
+ //
+ // Map 5..8 to 0..3
+ //
+ Data = (UINT8) (gData - (UINT8)5);
+
+ //
+ // Calculate divisor for baud generator
+ //
+ Divisor = 115200 / gBps;
+
+ //
+ // Set communications format
+ //
+ OutputData = (UINT8)((DLAB << 7) | ((gBreakSet << 6) | ((gParity << 3) | ((gStop << 2) | Data))));
+ IoWrite8 (gComBase + LCR_OFFSET, OutputData);
+
+ //
+ // Configure baud rate
+ //
+ IoWrite8 (gComBase + BAUD_HIGH_OFFSET, (UINT8)(Divisor >> 8));
+ IoWrite8 (gComBase + BAUD_LOW_OFFSET, (UINT8)(Divisor & 0xff));
+
+ //
+ // Switch back to bank 0
+ //
+ OutputData = (UINT8)((~DLAB<<7)|((gBreakSet<<6)|((gParity<<3)|((gStop<<2)| Data))));
+ IoWrite8 (gComBase + LCR_OFFSET, OutputData);
+
+ return RETURN_SUCCESS;
+}
+
+/**
+ Write data to serial device.
+
+ @param Buffer Point of data buffer which need to be writed.
+ @param NumberOfBytes Number of output bytes which are cached in Buffer.
+
+ @retval 0 Write data failed.
+ @retval !0 Actual number of bytes writed to serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortWrite (
+ IN UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+)
+{
+ UINTN Result;
+ UINT8 Data;
+
+ if (NULL == Buffer) {
+ return 0;
+ }
+
+ Result = NumberOfBytes;
+
+ while (NumberOfBytes--) {
+ //
+ // Wait for the serail port to be ready.
+ //
+ do {
+ Data = IoRead8 (gComBase + LSR_OFFSET);
+ } while ((Data & LSR_TXRDY) == 0);
+
+ IoWrite8 (gComBase, *Buffer++);
+ }
+
+ return Result;
+
+}
+
+
+/**
+ Read data from serial device and save the datas in buffer.
+
+ @param Buffer Point of data buffer which need to be writed.
+ @param NumberOfBytes Number of output bytes which are cached in Buffer.
+
+ @retval 0 Read data failed.
+ @retval !0 Aactual number of bytes read from serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortRead (
+ OUT UINT8 *Buffer,
+ IN UINTN NumberOfBytes
+)
+{
+ return 0;
+}
+
diff --git a/DuetPkg/Library/DuetTimerLib/DuetTimerLib.inf b/DuetPkg/Library/DuetTimerLib/DuetTimerLib.inf new file mode 100644 index 0000000000..f03c6bd10a --- /dev/null +++ b/DuetPkg/Library/DuetTimerLib/DuetTimerLib.inf @@ -0,0 +1,68 @@ +#/** @file
+# Timer Library implementation for Boot Timer moudles that require timer services.
+#
+# Timer Library that uses CPU resources to provide calibrated
+# delays on IA-32 and x64, and uses ITC on IPF. Note: Because CpuLocalApci
+# and ITC could be programmed by OS, it cannot be used by SMM drivers
+# and runtime drivers, ACPI timer is recommended for SMM drivers and RUNTIME
+# drivers.
+# Copyright (c) 2007, Intel Corporation.
+#
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DuetTimerLib
+ FILE_GUID = 5F9A01F5-726E-4f59-809D-887F4766734E
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = TimerLib
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources.Ia32]
+ x86TimerLib.c
+
+[Sources.X64]
+ x86TimerLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+
+[LibraryClasses]
+ BaseLib
+
+[LibraryClasses.IA32]
+ PcdLib
+ IoLib
+
+[LibraryClasses.X64]
+ PcdLib
+ IoLib
+
+[LibraryClasses.IPF]
+ DebugLib
+ PalCallLib
+
+
+[Pcd.IA32]
+ gEfiMdePkgTokenSpaceGuid.PcdFSBClock
+
+[Pcd.X64]
+ gEfiMdePkgTokenSpaceGuid.PcdFSBClock
+
diff --git a/DuetPkg/Library/DuetTimerLib/x86TimerLib.c b/DuetPkg/Library/DuetTimerLib/x86TimerLib.c new file mode 100644 index 0000000000..263ce9a2ec --- /dev/null +++ b/DuetPkg/Library/DuetTimerLib/x86TimerLib.c @@ -0,0 +1,252 @@ +/** @file
+ Timer Library functions built upon local APIC on IA32/x64.
+
+ Copyright (c) 2006 - 2007, Intel Corporation<BR>
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Base.h>
+#include <Library/TimerLib.h>
+#include <Library/BaseLib.h>
+#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+
+
+//
+// The following array is used in calculating the frequency of local APIC
+// timer. Refer to IA-32 developers' manual for more details.
+//
+GLOBAL_REMOVE_IF_UNREFERENCED
+CONST UINT8 mTimerLibLocalApicDivisor[] = {
+ 0x02, 0x04, 0x08, 0x10,
+ 0x02, 0x04, 0x08, 0x10,
+ 0x20, 0x40, 0x80, 0x01,
+ 0x20, 0x40, 0x80, 0x01
+};
+
+/**
+ Internal function to retrieve the base address of local APIC.
+
+ Internal function to retrieve the base address of local APIC.
+
+ @return The base address of local APIC
+
+**/
+STATIC
+UINTN
+InternalX86GetApicBase (
+ VOID
+ )
+{
+ return (UINTN)AsmMsrBitFieldRead64 (27, 12, 35) << 12;
+}
+
+/**
+ Internal function to return the frequency of the local APIC timer.
+
+ Internal function to return the frequency of the local APIC timer.
+
+ @param ApicBase The base address of memory mapped registers of local APIC.
+
+ @return The frequency of the timer in Hz.
+
+**/
+STATIC
+UINT32
+InternalX86GetTimerFrequency (
+ IN UINTN ApicBase
+ )
+{
+ return
+ PcdGet32(PcdFSBClock) /
+ mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase + 0x3e0, 0, 3)];
+}
+
+/**
+ Internal function to read the current tick counter of local APIC.
+
+ Internal function to read the current tick counter of local APIC.
+
+ @param ApicBase The base address of memory mapped registers of local APIC.
+
+ @return The tick counter read.
+
+**/
+STATIC
+INT32
+InternalX86GetTimerTick (
+ IN UINTN ApicBase
+ )
+{
+ return MmioRead32 (ApicBase + 0x390);
+}
+
+/**
+ Stalls the CPU for at least the given number of ticks.
+
+ Stalls the CPU for at least the given number of ticks. It's invoked by
+ MicroSecondDelay() and NanoSecondDelay().
+
+ @param ApicBase The base address of memory mapped registers of local APIC.
+ @param Delay A period of time to delay in ticks.
+
+**/
+STATIC
+VOID
+InternalX86Delay (
+ IN UINTN ApicBase,
+ IN UINT32 Delay
+ )
+{
+ INT32 Ticks;
+
+ //
+ // The target timer count is calculated here
+ //
+ Ticks = InternalX86GetTimerTick (ApicBase) - Delay;
+
+ //
+ // Wait until time out
+ // Delay > 2^31 could not be handled by this function
+ // Timer wrap-arounds are handled correctly by this function
+ //
+ while (InternalX86GetTimerTick (ApicBase) - Ticks >= 0);
+}
+
+/**
+ Stalls the CPU for at least the given number of microseconds.
+
+ Stalls the CPU for the number of microseconds specified by MicroSeconds.
+
+ @param MicroSeconds The minimum number of microseconds to delay.
+
+ @return MicroSeconds
+
+**/
+UINTN
+EFIAPI
+MicroSecondDelay (
+ IN UINTN MicroSeconds
+ )
+{
+ UINTN ApicBase;
+
+ ApicBase = InternalX86GetApicBase ();
+ InternalX86Delay (
+ ApicBase,
+ (UINT32)DivU64x32 (
+ MultU64x64 (
+ InternalX86GetTimerFrequency (ApicBase),
+ MicroSeconds
+ ),
+ 1000000u
+ )
+ );
+ return MicroSeconds;
+}
+
+/**
+ Stalls the CPU for at least the given number of nanoseconds.
+
+ Stalls the CPU for the number of nanoseconds specified by NanoSeconds.
+
+ @param NanoSeconds The minimum number of nanoseconds to delay.
+
+ @return NanoSeconds
+
+**/
+UINTN
+EFIAPI
+NanoSecondDelay (
+ IN UINTN NanoSeconds
+ )
+{
+ UINTN ApicBase;
+
+ ApicBase = InternalX86GetApicBase ();
+ InternalX86Delay (
+ ApicBase,
+ (UINT32)DivU64x32 (
+ MultU64x64 (
+ InternalX86GetTimerFrequency (ApicBase),
+ NanoSeconds
+ ),
+ 1000000000u
+ )
+ );
+ return NanoSeconds;
+}
+
+/**
+ Retrieves the current value of a 64-bit free running performance counter.
+
+ Retrieves the current value of a 64-bit free running performance counter. The
+ counter can either count up by 1 or count down by 1. If the physical
+ performance counter counts by a larger increment, then the counter values
+ must be translated. The properties of the counter can be retrieved from
+ GetPerformanceCounterProperties().
+
+ @return The current value of the free running performance counter.
+
+**/
+UINT64
+EFIAPI
+GetPerformanceCounter (
+ VOID
+ )
+{
+ return (UINT64)(UINT32)InternalX86GetTimerTick (InternalX86GetApicBase ());
+}
+
+/**
+ Retrieves the 64-bit frequency in Hz and the range of performance counter
+ values.
+
+ If StartValue is not NULL, then the value that the performance counter starts
+ with immediately after is it rolls over is returned in StartValue. If
+ EndValue is not NULL, then the value that the performance counter end with
+ immediately before it rolls over is returned in EndValue. The 64-bit
+ frequency of the performance counter in Hz is always returned. If StartValue
+ is less than EndValue, then the performance counter counts up. If StartValue
+ is greater than EndValue, then the performance counter counts down. For
+ example, a 64-bit free running counter that counts up would have a StartValue
+ of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter
+ that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0.
+
+ @param StartValue The value the performance counter starts with when it
+ rolls over.
+ @param EndValue The value that the performance counter ends with before
+ it rolls over.
+
+ @return The frequency in Hz.
+
+**/
+UINT64
+EFIAPI
+GetPerformanceCounterProperties (
+ OUT UINT64 *StartValue, OPTIONAL
+ OUT UINT64 *EndValue OPTIONAL
+ )
+{
+ UINTN ApicBase;
+
+ ApicBase = InternalX86GetApicBase ();
+
+ if (StartValue != NULL) {
+ *StartValue = MmioRead32 (ApicBase + 0x380);
+ }
+
+ if (EndValue != NULL) {
+ *EndValue = 0;
+ }
+
+ return (UINT64) InternalX86GetTimerFrequency (ApicBase);;
+}
|