[7208b6c] | 1 | #ifndef _EFI_SER_H
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| 2 | #define _EFI_SER_H
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| 3 |
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| 4 | /*++
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| 5 |
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| 6 | Copyright (c) 1998 Intel Corporation
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| 7 |
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| 8 | Module Name:
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| 9 |
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| 10 | efiser.h
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| 11 |
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| 12 | Abstract:
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| 13 |
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| 14 | EFI serial protocol
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| 15 |
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| 16 | Revision History
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| 17 |
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| 18 | --*/
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| 19 |
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| 20 | //
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| 21 | // Serial protocol
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| 22 | //
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| 23 |
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| 24 | #define SERIAL_IO_PROTOCOL \
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| 25 | { 0xBB25CF6F, 0xF1D4, 0x11D2, {0x9A, 0x0C, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0xFD} }
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| 26 |
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| 27 | INTERFACE_DECL(_SERIAL_IO_INTERFACE);
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| 28 |
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| 29 | typedef enum {
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| 30 | DefaultParity,
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| 31 | NoParity,
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| 32 | EvenParity,
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| 33 | OddParity,
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| 34 | MarkParity,
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| 35 | SpaceParity
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| 36 | } EFI_PARITY_TYPE;
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| 37 |
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| 38 | typedef enum {
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| 39 | DefaultStopBits,
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| 40 | OneStopBit, // 1 stop bit
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| 41 | OneFiveStopBits, // 1.5 stop bits
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| 42 | TwoStopBits // 2 stop bits
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| 43 | } EFI_STOP_BITS_TYPE;
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| 44 |
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| 45 | #define EFI_SERIAL_CLEAR_TO_SEND 0x0010 // RO
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| 46 | #define EFI_SERIAL_DATA_SET_READY 0x0020 // RO
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| 47 | #define EFI_SERIAL_RING_INDICATE 0x0040 // RO
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| 48 | #define EFI_SERIAL_CARRIER_DETECT 0x0080 // RO
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| 49 | #define EFI_SERIAL_REQUEST_TO_SEND 0x0002 // WO
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| 50 | #define EFI_SERIAL_DATA_TERMINAL_READY 0x0001 // WO
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| 51 | #define EFI_SERIAL_INPUT_BUFFER_EMPTY 0x0100 // RO
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| 52 | #define EFI_SERIAL_OUTPUT_BUFFER_EMPTY 0x0200 // RO
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| 53 | #define EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE 0x1000 // RW
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| 54 | #define EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE 0x2000 // RW
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| 55 | #define EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE 0x4000 // RW
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| 56 |
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| 57 | typedef
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| 58 | EFI_STATUS
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| 59 | (EFIAPI *EFI_SERIAL_RESET) (
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| 60 | IN struct _SERIAL_IO_INTERFACE *This
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| 61 | );
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| 62 |
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| 63 | typedef
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| 64 | EFI_STATUS
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| 65 | (EFIAPI *EFI_SERIAL_SET_ATTRIBUTES) (
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| 66 | IN struct _SERIAL_IO_INTERFACE *This,
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| 67 | IN UINT64 BaudRate,
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| 68 | IN UINT32 ReceiveFifoDepth,
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| 69 | IN UINT32 Timeout,
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| 70 | IN EFI_PARITY_TYPE Parity,
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| 71 | IN UINT8 DataBits,
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| 72 | IN EFI_STOP_BITS_TYPE StopBits
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| 73 | );
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| 74 |
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| 75 | typedef
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| 76 | EFI_STATUS
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| 77 | (EFIAPI *EFI_SERIAL_SET_CONTROL_BITS) (
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| 78 | IN struct _SERIAL_IO_INTERFACE *This,
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| 79 | IN UINT32 Control
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| 80 | );
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| 81 |
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| 82 | typedef
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| 83 | EFI_STATUS
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| 84 | (EFIAPI *EFI_SERIAL_GET_CONTROL_BITS) (
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| 85 | IN struct _SERIAL_IO_INTERFACE *This,
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| 86 | OUT UINT32 *Control
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| 87 | );
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| 88 |
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| 89 | typedef
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| 90 | EFI_STATUS
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| 91 | (EFIAPI *EFI_SERIAL_WRITE) (
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| 92 | IN struct _SERIAL_IO_INTERFACE *This,
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| 93 | IN OUT UINTN *BufferSize,
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| 94 | IN VOID *Buffer
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| 95 | );
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| 96 |
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| 97 | typedef
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| 98 | EFI_STATUS
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| 99 | (EFIAPI *EFI_SERIAL_READ) (
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| 100 | IN struct _SERIAL_IO_INTERFACE *This,
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| 101 | IN OUT UINTN *BufferSize,
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| 102 | OUT VOID *Buffer
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| 103 | );
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| 104 |
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| 105 | typedef struct {
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| 106 | UINT32 ControlMask;
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| 107 |
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| 108 | // current Attributes
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| 109 | UINT32 Timeout;
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| 110 | UINT64 BaudRate;
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| 111 | UINT32 ReceiveFifoDepth;
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| 112 | UINT32 DataBits;
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| 113 | UINT32 Parity;
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| 114 | UINT32 StopBits;
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| 115 | } SERIAL_IO_MODE;
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| 116 |
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| 117 | #define SERIAL_IO_INTERFACE_REVISION 0x00010000
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| 118 |
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| 119 | typedef struct _SERIAL_IO_INTERFACE {
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| 120 | UINT32 Revision;
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| 121 | EFI_SERIAL_RESET Reset;
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| 122 | EFI_SERIAL_SET_ATTRIBUTES SetAttributes;
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| 123 | EFI_SERIAL_SET_CONTROL_BITS SetControl;
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| 124 | EFI_SERIAL_GET_CONTROL_BITS GetControl;
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| 125 | EFI_SERIAL_WRITE Write;
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| 126 | EFI_SERIAL_READ Read;
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| 127 |
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| 128 | SERIAL_IO_MODE *Mode;
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| 129 | } SERIAL_IO_INTERFACE;
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| 130 |
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| 131 | #endif
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| 132 |
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