mirror of
https://github.com/reactos/reactos.git
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08da4a07b0
Implement reading by polling (expect lots of bugs!) Use receive and send queues Better handling of some IRPs Lots of small bugs fixes svn path=/trunk/; revision=14177
266 lines
5.8 KiB
C
266 lines
5.8 KiB
C
#if defined(__GNUC__)
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#include <ddk/ntddk.h>
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#include <ddk/ntddser.h>
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#include <stdio.h>
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#include <debug.h>
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/* FIXME: these prototypes MUST NOT be here! */
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NTSTATUS STDCALL
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IoAttachDeviceToDeviceStackSafe(
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IN PDEVICE_OBJECT SourceDevice,
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IN PDEVICE_OBJECT TargetDevice,
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OUT PDEVICE_OBJECT *AttachedToDeviceObject);
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#define STATUS_ARRAY_BOUNDS_EXCEEDED 0xc000008c
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#elif defined(_MSC_VER)
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#include <ntddk.h>
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#include <ntddser.h>
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#include <stdio.h>
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#define STDCALL
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#define DPRINT1 DbgPrint("(%s:%d) ", __FILE__, __LINE__), DbgPrint
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#define CHECKPOINT1 DbgPrint("(%s:%d)\n")
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#define TAG(A, B, C, D) (ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) + ((D)<<24))
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NTSTATUS STDCALL
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IoAttachDeviceToDeviceStackSafe(
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IN PDEVICE_OBJECT SourceDevice,
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IN PDEVICE_OBJECT TargetDevice,
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OUT PDEVICE_OBJECT *AttachedToDeviceObject);
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#ifdef NDEBUG2
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#define DPRINT
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#define CHECKPOINT
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#else
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#define DPRINT DPRINT1
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#define CHECKPOINT CHECKPOINT1
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#undef NDEBUG
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#endif
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#else
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#error Unknown compiler!
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#endif
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typedef enum {
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dsStopped,
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dsStarted,
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dsPaused,
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dsRemoved,
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dsSurpriseRemoved
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} SERIAL_DEVICE_STATE;
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typedef struct _CIRCULAR_BUFFER
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{
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PUCHAR Buffer;
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ULONG Length;
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ULONG ReadPosition;
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ULONG WritePosition;
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} CIRCULAR_BUFFER, *PCIRCULAR_BUFFER;
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typedef struct _SERIAL_DEVICE_EXTENSION
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{
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PDEVICE_OBJECT Pdo;
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PDEVICE_OBJECT LowerDevice;
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SERIAL_DEVICE_STATE PnpState;
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IO_REMOVE_LOCK RemoveLock;
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ULONG SerialPortNumber;
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ULONG ComPort;
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ULONG BaudRate;
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ULONG BaseAddress;
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ULONG Irq;
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PKINTERRUPT Interrupt;
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SERIAL_LINE_CONTROL SerialLineControl;
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ULONG WaitMask;
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SERIALPERF_STATS SerialPerfStats;
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SERIAL_TIMEOUTS SerialTimeOuts;
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BOOLEAN IsOpened;
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CIRCULAR_BUFFER InputBuffer;
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CIRCULAR_BUFFER OutputBuffer;
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/* Current values */
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UCHAR IER; /* Base+1, Interrupt Enable Register */
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UCHAR MCR; /* Base+4, Modem Control Register */
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UCHAR MSR; /* Base+6, Modem Status Register */
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} SERIAL_DEVICE_EXTENSION, *PSERIAL_DEVICE_EXTENSION;
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#define SERIAL_TAG TAG('S', 'e', 'r', 'l')
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#define INFINITE ((ULONG)-1)
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/* Baud master clock */
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#define BAUD_CLOCK 1843200
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#define CLOCKS_PER_BIT 16
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/* UART registers and bits */
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#define SER_RBR(x) ((x)+0)
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#define SER_THR(x) ((x)+0)
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#define SER_DLL(x) ((x)+0)
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#define SER_IER(x) ((x)+1)
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#define SER_DLM(x) ((x)+1)
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#define SER_IIR(x) ((x)+2)
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#define SR_IIR_SELF 0x00
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#define SR_IIR_ID_MASK 0x07
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#define SR_IIR_MSR_CHANGE SR_IIR_SELF
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#define SR_IIR_THR_EMPTY (SR_IIR_SELF | 2)
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#define SR_IIR_DATA_RECEIVED (SR_IIR_SELF | 4)
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#define SR_IIR_ERROR (SR_IIR_SELF | 6)
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#define SER_FCR(x) ((x)+2)
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#define SR_FCR_ENABLE_FIFO 0x01
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#define SR_FCR_CLEAR_RCVR 0x02
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#define SR_FCR_CLEAR_XMIT 0x04
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#define SER_LCR(x) ((x)+3)
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#define SR_LCR_CS5 0x00
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#define SR_LCR_CS6 0x01
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#define SR_LCR_CS7 0x02
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#define SR_LCR_CS8 0x03
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#define SR_LCR_ST1 0x00
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#define SR_LCR_ST2 0x04
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#define SR_LCR_PNO 0x00
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#define SR_LCR_POD 0x08
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#define SR_LCR_PEV 0x18
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#define SR_LCR_PMK 0x28
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#define SR_LCR_PSP 0x38
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#define SR_LCR_BRK 0x40
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#define SR_LCR_DLAB 0x80
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#define SER_MCR(x) ((x)+4)
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#define SR_MCR_DTR 0x01
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#define SR_MCR_RTS 0x02
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#define SER_LSR(x) ((x)+5)
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#define SR_LSR_DR 0x01
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#define SR_LSR_TBE 0x20
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#define SER_MSR(x) ((x)+6)
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#define SR_MSR_CTS 0x10
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#define SR_MSR_DSR 0x20
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#define SER_SCR(x) ((x)+7)
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/************************************ circularbuffer.c */
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/* FIXME: transform these functions into #define? */
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NTSTATUS
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InitializeCircularBuffer(
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IN PCIRCULAR_BUFFER pBuffer,
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IN ULONG BufferSize);
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NTSTATUS
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FreeCircularBuffer(
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IN PCIRCULAR_BUFFER pBuffer);
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BOOLEAN
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IsCircularBufferEmpty(
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IN PCIRCULAR_BUFFER pBuffer);
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NTSTATUS
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PushCircularBufferEntry(
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IN PCIRCULAR_BUFFER pBuffer,
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IN UCHAR Entry);
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NTSTATUS
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PopCircularBufferEntry(
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IN PCIRCULAR_BUFFER pBuffer,
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OUT PUCHAR Entry);
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/************************************ cleanup.c */
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NTSTATUS STDCALL
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SerialCleanup(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ close.c */
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NTSTATUS STDCALL
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SerialClose(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ create.c */
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NTSTATUS STDCALL
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SerialCreate(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ devctrl.c */
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NTSTATUS STDCALL
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SerialDeviceControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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NTSTATUS STDCALL
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SerialSetBaudRate(
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IN PSERIAL_DEVICE_EXTENSION DeviceExtension,
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IN ULONG NewBaudRate);
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NTSTATUS STDCALL
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SerialSetLineControl(
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IN PSERIAL_DEVICE_EXTENSION DeviceExtension,
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IN PSERIAL_LINE_CONTROL NewSettings);
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/************************************ info.c */
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NTSTATUS STDCALL
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SerialQueryInformation(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ legacy.c */
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NTSTATUS
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DetectLegacyDevices(
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IN PDRIVER_OBJECT DriverObject);
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/************************************ misc.c */
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NTSTATUS
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ForwardIrpAndWait(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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NTSTATUS STDCALL
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ForwardIrpAndForget(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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BOOLEAN STDCALL
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SerialInterruptService(
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IN PKINTERRUPT Interrupt,
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IN OUT PVOID ServiceContext);
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/************************************ pnp.c */
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NTSTATUS STDCALL
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SerialAddDevice(
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT Pdo);
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NTSTATUS STDCALL
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SerialPnp(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ power.c */
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NTSTATUS STDCALL
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SerialPower(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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/************************************ rw.c */
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NTSTATUS STDCALL
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SerialRead(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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NTSTATUS STDCALL
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SerialWrite(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp);
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