diff gsm-fw/g23m-aci/uart/uart.h @ 775:eedbf248bac0

gsm-fw/g23m-aci subtree: initial import from LoCosto source
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 12 Oct 2014 01:45:14 +0000
parents
children
line wrap: on
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gsm-fw/g23m-aci/uart/uart.h	Sun Oct 12 01:45:14 2014 +0000
@@ -0,0 +1,1118 @@
+/*
++-----------------------------------------------------------------------------
+|  Project :
+|  Modul   :
++-----------------------------------------------------------------------------
+|  Copyright 2002 Texas Instruments Berlin, AG
+|                 All rights reserved.
+|
+|                 This file is confidential and a trade secret of Texas
+|                 Instruments Berlin, AG
+|                 The receipt of or possession of this file does not convey
+|                 any rights to reproduce or disclose its contents or to
+|                 manufacture, use, or sell anything it may describe, in
+|                 whole, or in part, without the specific written consent of
+|                 Texas Instruments Berlin, AG.
++-----------------------------------------------------------------------------
+|  Purpose :  Definitions for the Protocol Stack Entity
+|             Universal Asynchronous Receiver Transmitter (UART).
++-----------------------------------------------------------------------------
+*/
+
+#ifndef UART_H
+#define UART_H
+
+/*==== MACROS ======================================================*/
+
+/*
+ * defines the user of the vsi interface
+ */
+#define VSI_CALLER            UART_handle,
+#define VSI_CALLER_SINGLE     UART_handle
+
+/*
+ * VERSION
+ *
+ * Description :  The constants define the type and the value
+ *                of a version identification. The version
+ *                is part of the monitor struct.
+ */
+#define VERSION_UART    "UART 1.1"
+
+#ifdef TI_PS_OP_VSI_NO_CALL_ID
+#define TIMER_START(C,I,T)         vsi_t_start_nc(I,T)
+#define TIMER_PSTART(C,I,T,R)      vsi_t_pstart_nc(I,T,R)
+#define TIMER_STOP(C,I)            vsi_t_stop_nc(I)
+#define TIMER_STATUS(C,I,T)        vsi_t_status_nc(I,T)
+#define SUSPEND_SELF(C,T)          vsi_t_sleep_nc(T)
+#define SYSTEM_TIME(C,T)           vsi_t_time_nc(T)               
+#else /* TI_PS_OP_VSI_NO_CALL_ID */
+#define TIMER_START(C,I,T)         vsi_t_start(C,I,T)
+#define TIMER_PSTART(C,I,T,R)      vsi_t_pstart(C,I,T,R)
+#define TIMER_STOP(C,I)            vsi_t_stop(C,I)
+#define TIMER_STATUS(C,I,T)        vsi_t_status(C,I,T)
+#define SUSPEND_SELF(C,T)          vsi_t_sleep(C,T)
+#define SYSTEM_TIME(C,T)           vsi_t_time(C,T)               
+#endif /* TI_PS_OP_VSI_NO_CALL_ID */
+
+
+/*
+ * This is just a TEMPORARY define until the issues with OPTION_MULTITHREAD
+ * are settled. This define SHOULD be contained in GSM.H.
+ */
+#undef _ENTITY_PREFIXED
+#define _ENTITY_PREFIXED(N) uart_##N
+
+/*
+ * Communication handles (see also UART_PEI.C)
+ */
+#define hCommMMI                uart_hCommMMI
+#define hCommUART               uart_hCommUART
+
+/*
+ * Macros for error tracing
+ */
+
+#ifndef TRACE_ERROR_P1
+#define TRACE_ERROR_P1(f,a1)                  vsi_o_error_ttrace(f,a1);
+#endif
+
+#ifndef TRACE_ERROR_P2
+#define TRACE_ERROR_P2(f,a1,a2)               vsi_o_error_ttrace(f,a1,a2);
+#endif
+
+#ifndef TRACE_ERROR_P3
+#define TRACE_ERROR_P3(f,a1,a2,a3)            vsi_o_error_ttrace(f,a1,a2,a3);
+#endif
+
+#ifndef TRACE_ERROR_P4
+#define TRACE_ERROR_P4(f,a1,a2,a3,a4)          vsi_o_error_ttrace(f,a1,a2,a3,a4);
+#endif
+
+/*==== CONSTANTS ======================================================*/
+
+#if defined (DTILIB)
+/*
+ * dtilib interface
+ */
+
+#define UART_DTI_UP_INTERFACE  0
+#define UART_UPLINK_QUEUE_SIZE 0
+#endif  /* DTILIB */
+/*
+ * Scaling
+ */
+#ifdef FF_MULTI_PORT
+#define UART_INSTANCES     FF_MULTI_PORT
+#else /* FF_MULTI_PORT */
+#ifdef FF_TWO_UART_PORTS
+#define UART_INSTANCES                 2
+#else /* FF_TWO_UART_PORTS */
+#define UART_INSTANCES                 1
+#endif /* FF_TWO_UART_PORTS */
+#endif /* FF_MULTI_PORT */
+
+#define UART_MAX_NUMBER_OF_CHANNELS    6
+
+/*
+ * Bitoffset for encoding/decoding
+ */
+#define ENCODE_OFFSET                 0
+
+/*
+ * Service definitions. Used to access service data with GET/SET_STATE.
+ *
+ * Services with multiple incarnation have to be defined as xxx->
+ * Services with only one incarnation have to be defined as xxx.
+ *
+ */
+#define UART_SERVICE_KER        ker.
+#define UART_SERVICE_RX         rx.
+#define UART_SERVICE_TX         tx.
+#define UART_SERVICE_DTX        dtx->
+#define UART_SERVICE_DRX        drx->
+#define UART_SERVICE_RT         rt.
+
+/*
+ * Service name definitions for trace purposes.
+ */
+#ifndef NTRACE
+
+#define SERVICE_NAME_UART_SERVICE_KER     "KER"
+#define SERVICE_NAME_UART_SERVICE_RX      "RX"
+#define SERVICE_NAME_UART_SERVICE_TX      "TX"
+#define SERVICE_NAME_UART_SERVICE_DRX     "DRX"
+#define SERVICE_NAME_UART_SERVICE_DTX     "DTX"
+#define SERVICE_NAME_UART_SERVICE_RT      "RT"
+
+#endif /* !NTRACE */
+
+
+/*
+ * State definitions for each service.
+ */
+
+#define KER_DEAD                                                1
+#define KER_READY                                               2
+#define KER_MUX_ESTABLISH                                       3
+#define KER_MUX                                                 4
+#define KER_MUX_DLC_CLOSING                                     5
+#define KER_MUX_CLOSING                                         6
+#define KER_MUX_CLOSED                                          7
+
+#define RX_DEAD                                                 8
+#ifdef DTILIB
+/*
+ * we do not use the one from DTILIB here
+ */
+#undef RX_READY
+#endif
+#define RX_READY                                                9
+#define RX_MUX                                                 10
+
+#define TX_DEAD                                                11
+#ifdef DTILIB
+/*
+ * we do not use the one from DTILIB here
+ */
+#undef TX_READY
+#endif
+#define TX_READY                                               12
+#define TX_READY_FLUSHING                                      13
+#define TX_MUX                                                 14
+#define TX_MUX_FLUSHING                                        15
+
+#define DRX_DEAD                                               16
+#define DRX_READY                                              17
+#define DRX_NOT_READY                                          18
+#define DRX_FLUSHING                                           19
+
+#define DTX_DEAD                                               20
+#define DTX_READY                                              21
+#define DTX_NOT_READY                                          22
+
+#define RT_STATE                                               23
+
+/*
+ * DLC Connection states
+ */
+#define UART_CONNECTION_DEAD                                   24
+#define UART_CONNECTION_SABM_RCVD                              25
+#define UART_CONNECTION_DISC_SENT                              26
+#define UART_CONNECTION_OPEN                                   27
+
+/*
+ * states of TX ISR state machine
+ */
+#define UART_TX_BEGIN                                          28
+#define UART_TX_ADDRESS                                        29
+#define UART_TX_CONTROL                                        30
+#define UART_TX_INFORMATION                                    31
+#define UART_TX_FCS                                            32
+#define UART_TX_END                                            33
+
+/*
+ * states of TX sending indicator
+ */
+#define UART_TX_SENDING                                        34
+#define UART_TX_NOT_SENDING                                    35
+
+/*
+ * states of RX receiving indicator
+ */
+#define UART_RX_RECEIVING                                      36
+#define UART_RX_NOT_RECEIVING                                  37
+
+/*
+ * states of RX ISR state machine
+ */
+#define UART_RX_ERROR                                          38
+#define UART_RX_BEGIN                                          39
+#define UART_RX_ADDRESS                                        40
+#define UART_RX_CONTROL                                        41
+#define UART_RX_INFORMATION                                    42
+#define UART_RX_FCS                                            43
+#define UART_RX_END                                            44
+
+/*
+ * DLC process states of reception
+ */
+#define UART_RX_PROCESS_STOP                                   45
+#define UART_RX_PROCESS_READY                                  46
+#define UART_RX_PROCESS_COMPLETE                               47
+
+/*
+ * definition of flush states for service KER
+ */
+#define UART_KER_NOT_FLUSHING                                  48
+#define UART_KER_DRX_FLUSH                                     49
+#define UART_KER_TX_FLUSH                                      50
+
+/*
+ * special channel instance values
+ */
+#define UART_CONTROL_INSTANCE         UART_MAX_NUMBER_OF_CHANNELS
+#define UART_EMPTY_INSTANCE                                   255
+
+/*
+ * priority value
+ */
+#define UART_PRIORITY_CONTROL                                   0
+
+/*
+ * HDLC values
+ */
+#define UART_HDLC_FLAG                                       0x7e
+#define UART_HDLC_ESCAPE                                     0x7d
+#define UART_SABM_FRAME                                      0x3f
+#define UART_UA_FRAME                                        0x73
+#define UART_DM_CONTROL_FRAME                                0x1f
+#define UART_DM_DATA_FRAME                                   0x0f
+#define UART_DISC_FRAME                                      0x53
+#define UART_UIH_CONTROL_FRAME                               0xff
+#define UART_UIH_DATA_FRAME                                  0xef
+
+/*
+ * UART DLC channel values
+ */
+#define UART_DLCI_CONTROL                                       0
+#define UART_DLCI_INVALID                                     255
+#define UART_DLCI_POS                                           2
+
+/*
+ * mask values for forward parameter
+ */
+#define UART_FORWARD_CLD                               0x00000001
+#define UART_FORWARD_FCON                              0x00000002
+#define UART_FORWARD_FCOFF                             0x00000004
+#define UART_FORWARD_MSC                               0x00000008
+#define UART_FORWARD_SABM                              0x00000010
+#define UART_FORWARD_DLC_RELEASE                       0x00000020
+#define UART_FORWARD_PSC                               0x00000040
+#define UART_FORWARD_RESPONSE                          0x00000080
+
+/*
+ * message type values (for UIH command frames)
+ */
+#define UART_MSG_TYPE_PSC_C                                  0x43
+#define UART_MSG_TYPE_PSC_R                                  0x41
+#define UART_MSG_TYPE_CLD_C                                  0xc3
+#define UART_MSG_TYPE_CLD_R                                  0xc1
+#define UART_MSG_TYPE_FCON_C                                 0xa3
+#define UART_MSG_TYPE_FCON_R                                 0xa1
+#define UART_MSG_TYPE_FCOFF_C                                0x63
+#define UART_MSG_TYPE_FCOFF_R                                0x61
+#define UART_MSG_TYPE_MSC_C                                  0xe3
+#define UART_MSG_TYPE_MSC_R                                  0xe1
+#define UART_MSG_TYPE_NSC_R                                  0x11
+#define UART_MSG_TYPE_SNC_C                                  0xd3
+#define UART_MSG_TYPE_SNC_R                                  0xd1
+
+/*
+ * message length field values
+ */
+#define UART_MSG_LENGTH_POS                                     1
+
+/*
+ * definitions for service negotiation
+ */
+#define UART_NO_SERVICE                                      0x00
+#define UART_NO_VOICE_CODEC                                  0x00
+
+/*
+ * definitions for modem status commands
+ */
+#define UART_NO_BREAK_SIGNAL                                 0x01
+
+/*
+ * FCS calculation
+ */
+#define UART_INITFCS                                         0xff
+#define UART_GOODFCS                                         0xcf
+
+/*
+ * offset addresses for frame handling in service KER
+ * (in bytes after flag)
+ */
+#define UART_OFFSET_ADDRESS                                   0
+#define UART_OFFSET_CONTROL                                   1
+#define UART_OFFSET_INFO                                      2
+
+/*
+ * common EA and CR bit
+ */
+#define UART_EA                                            0x01
+#define UART_CR                                            0x02
+/*
+ * modem status command (MSC) masks and positions
+ */
+#define UART_MSC_BRKLEN_POS                                   4
+#define UART_MSC_DV_MASK                                   0x80
+#define UART_MSC_IC_MASK                                   0x40
+#define UART_MSC_RTR_MASK                                  0x08
+#define UART_MSC_RTC_MASK                                  0x04
+#define UART_MSC_FC_MASK                                   0x02
+#define UART_MSC_BRK_MASK                                  0x02
+#define UART_MSC_BRKLEN_MASK                               0xf0
+
+/*
+ * !!! for vsi_t_sleep may be changed???
+ */
+#define ONE_FRAME                                             0
+/*
+ * position and mask definitions
+ */
+#define BRK_LEN_POS                                      BRKLEN
+#define BRK_LEN_MASK                                   0x1fe00L
+#define SA_MASK                                  ( 1UL <<  SA )
+#define SB_MASK                                  ( 1UL <<  SB )
+#define X_MASK                                   ( 1UL <<   X )
+#define BRK_MASK                                 ( 1UL << BRK )
+#define ESC_MASK                                 ( 1UL << ESC )
+#define RI_MASK                                  ( 1UL <<  RI )
+#define DCD_MASK                                 ( 1UL << DCD )
+/*
+ * UART intern position and mask definitions
+ */
+#define UART_CTS_POS                                          0
+#define UART_RTS_POS                                          1
+#define UART_DSR_POS                                          2
+#define UART_DTR_POS                                          3
+#define UART_DCD_POS                                          4
+#define UART_BRK_RX_POS                                       5
+#define UART_BRK_TX_POS                                       6
+#define UART_ESC_RX_POS                                       7
+#define UART_ESC_TX_POS                                       8
+#define UART_BRKLEN_RX_POS                                    9
+#define UART_BRKLEN_TX_POS                                   17
+#define UART_FC_RX_POS                                       25
+#define UART_FC_TX_POS                                       26
+#define UART_RI_POS                                          27
+#define UART_SA_TX_POS                                       28
+#define UART_SB_TX_POS                             UART_DCD_POS
+#define UART_X_TX_POS                                        29
+#define UART_SA_RX_POS                             UART_DTR_POS
+#define UART_SB_RX_POS                                       30
+#define UART_X_RX_POS                              UART_RTS_POS
+#define UART_CTS_MASK                     (1UL << UART_CTS_POS)
+#define UART_RTS_MASK                     (1UL << UART_RTS_POS)
+#define UART_DSR_MASK                     (1UL << UART_DSR_POS)
+#define UART_DTR_MASK                     (1UL << UART_DTR_POS)
+#define UART_DCD_MASK                     (1UL << UART_DCD_POS)
+#define UART_BRK_RX_MASK               (1UL << UART_BRK_RX_POS)
+#define UART_BRK_TX_MASK               (1UL << UART_BRK_TX_POS)
+#define UART_ESC_RX_MASK               (1UL << UART_ESC_RX_POS)
+#define UART_ESC_TX_MASK               (1UL << UART_ESC_TX_POS)
+#define UART_BRKLEN_RX_MASK       (255UL << UART_BRKLEN_RX_POS)
+#define UART_BRKLEN_TX_MASK       (255UL << UART_BRKLEN_TX_POS)
+#define UART_FC_RX_MASK                 (1UL << UART_FC_RX_POS)
+#define UART_FC_TX_MASK                 (1UL << UART_FC_TX_POS)
+#define UART_RI_MASK                       (1UL << UART_RI_POS)
+#define UART_SA_TX_MASK                 (1UL << UART_SA_TX_POS)
+#define UART_SB_TX_MASK                 (1UL << UART_SB_TX_POS)
+#define UART_X_TX_MASK                   (1UL << UART_X_TX_POS)
+#define UART_SA_RX_MASK                 (1UL << UART_SA_RX_POS)
+#define UART_SB_RX_MASK                 (1UL << UART_SB_RX_POS)
+#define UART_X_RX_MASK                   (1UL << UART_X_RX_POS)
+
+/*
+ * values for received primitive bitfield
+ */
+#define UART_PARAMETERS_REQ_MASK                     0x00000001
+#define UART_DTI_REQ_MASK                            0x00000004
+#define UART_DISABLE_REQ_MASK                        0x00000008
+#define UART_RING_REQ_MASK                           0x00000010
+#define UART_DCD_REQ_MASK                            0x00000020
+#define UART_MUX_START_REQ_MASK                      0x00000080
+#define UART_MUX_DLC_RELEASE_REQ_MASK                0x00000100
+#define UART_MUX_SLEEP_REQ_MASK                      0x00000200
+#define UART_MUX_WAKEUP_REQ_MASK                     0x00000400
+#define UART_MUX_CLOSE_REQ_MASK                      0x00000800
+#define UART_DTI_DATA_REQ_MASK                       0x00001000
+
+/*
+ * value for N1 in ready mode
+ */
+#define UART_N1_READY_MODE                                   10
+/*
+ * buffer size of RX buffer in multiplexer mode
+ */
+#define UART_RX_MUX_BUFFER_SIZE          (100 - sizeof(T_desc2))
+
+#ifdef WIN32
+#define HISR_STACK_SIZE         512
+#endif
+#ifdef _SIMULATION_
+#define UART_TX_SIM_BUFFER_SIZE                             136
+#endif /* _SIMULATION_ */
+
+/*
+ * Timer handle definitions.
+ */
+
+#define UART_RT_INDEX_T1           0
+#define UART_RT_INDEX_T2           1
+#define UART_RT_INDEX_T3           2
+#define UART_RT_INDEX_TESD         3  /* Escape Sequence Detection */
+#define UART_TIMER_PER_INSTANCE    4
+
+#define UART_TIMER_MAX             (UART_TIMER_PER_INSTANCE * UART_INSTANCES)
+
+/* Dynamic Configuration Numbers */
+#define RESET                0
+#ifdef DEBUG_COUNTERS
+#define DUMP_COUNTERS        6
+#endif /* DEBUG_COUNTERS */
+
+/*
+ * definition of constants for DTX dynamic buffer management:
+ */
+#define UART_DTX_MAX_BUF_SIZE          1000     /* max. 1000 bytes */
+#define UART_DTX_MAX_SIZE_MULTIPLIER \
+                               ((USHORT)(UART_DTX_MAX_BUF_SIZE / uart_data->n1))
+
+/*==== GLOBAL VARIABLES ======================================================*/
+
+/*==== TYPES ======================================================*/
+
+/*
+ * UART global typedefs
+ */
+typedef UBYTE   T_BIT;
+
+/*
+ * definition of sending state for service DRX
+ */
+typedef enum
+{
+  UART_DRX_NOT_SENDING,
+  UART_DRX_SENDING,
+  UART_DRX_INVALID
+} T_DRX_SENDING_STATE;
+
+/*
+ * definition of receiving states for service DTX
+ */
+typedef enum
+{
+  UART_DTX_NOT_RECEIVING,
+  UART_DTX_RECEIVING,
+  UART_DTX_INVALID
+} T_DTX_RECEIVING_STATE;
+
+/*
+ * definition of sending/receiving state for service KER
+ */
+typedef enum
+{
+  UART_KER_NOT_SENDING,
+  UART_KER_SENDING,
+  UART_KER_NOT_RECEIVING,
+  UART_KER_RECEIVING,
+  UART_KER_INVALID
+} T_KER_TRANSMISSION_STATE;
+
+/*
+ * definition of timer states for service RT
+ */
+typedef enum
+{
+  UART_RT_STARTED,
+  UART_RT_STOPPED
+} T_TIMER_STATE;
+
+/*
+ * definition of data flow states
+ */
+typedef enum
+{
+  UART_FLOW_DISABLED,
+  UART_FLOW_ENABLED
+} T_DATA_FLOW_STATE;
+
+/*
+ * definition of escape sequence detection (ESD) states
+ */
+typedef enum
+{
+  UART_ESD_NULL,          /* ESD not in progress */
+  UART_ESD_CHAR_1,        /* first ESD character has been received ('+') */
+  UART_ESD_CHAR_2,        /* second ESD character... */
+  /* third ESD character has been received (fourth would be invalid) */
+  UART_ESD_CHAR_3,
+  /* escape sequence detected, but charcters are not removed from data stream */
+  UART_ESD_DETECTED
+} T_ESD_STATE;
+
+/*
+ * data structure for each service
+ */
+
+typedef struct /* T_KER_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+  /*
+   * service specific: UART parameters, normal mode
+   */
+#ifdef FF_MULTI_PORT
+  T_GSI_DCB                   act_dcb;          /* device control block */
+#else /* FF_MULTI_PORT */
+  T_baudrate          act_br;     /* baud rate */
+  T_bitsPerCharacter  act_bpc;    /* bit per character */
+  T_stopBits          act_sb;     /* stop bits */
+  T_parity            act_par;    /* parity */
+  UBYTE               act_xon;    /* XOn character */
+  UBYTE               act_xoff;   /* XOff character */
+  T_flowCtrlMode      act_fc_rx;  /* RX flow control mode */
+  T_flowCtrlMode      act_fc_tx;  /* TX flow control mode */
+  UBYTE               act_ec;     /* escape character */
+  USHORT              act_gp;     /* guard period */
+#endif /* FF_MULTI_PORT */
+  /*
+   * service specific: multiplexer mode
+   */
+  UBYTE                       n2;               /* maximum number of retransmissions */
+  /*
+   * service specific: receive part, multiplexer mode
+   */
+  T_desc2*                    rx_data_desc;     /* data received from peer  */
+  /* state of internal data receiving */
+  T_KER_TRANSMISSION_STATE    receiving_state;
+  /* data to be sent to peer */
+  T_desc2*                    tx_data_desc;
+  /* data waiting for access to tx_data_desc */
+  T_desc2*                    tx_data_waiting;
+  /* KER currently sending via UART? */
+  T_KER_TRANSMISSION_STATE    sending_state;
+  /* data flow enabled/disabled */
+  T_DATA_FLOW_STATE           data_flow_tx;
+  /* number of running T1 timers */
+  UBYTE                       nr_t1;
+  /* number of running T2 timers */
+  UBYTE                       nr_t2;
+  /* bitfield of received UART primitives */
+  ULONG                       received_prim;
+  /* state of flushing */
+  UBYTE                       flush_state;
+} T_KER_DATA;
+
+
+typedef struct /* T_RX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+
+#ifndef FF_MULTI_PORT
+#ifdef WIN32
+  NU_HISR                     rx_HISR;
+#endif /* WIN32 */
+#endif /* !FF_MULTI_PORT */
+
+  /*
+   * ab hier service spezif.
+   */
+#ifdef FF_MULTI_PORT
+  T_desc2*      mux_buffer;       /* buffer in multiplexer mode */
+  USHORT        mux_pos;          /* analyse position in multiplexer mode */
+  BOOL          waiting_for_data; /* waiting for indication of UART driver */
+#else /* FF_MULTI_PORT */
+  T_BIT         cldFromIrq;       /* indicator whether it is an IRQ call */
+  T_reInstMode  *reInstall;       /* reinstallation mode */
+  UBYTE         nsource;          /* number of readable fragments */
+  UBYTE         *source[2];       /* addresses of readable fragments */
+  USHORT        *size;            /* sizes of readable fragments */
+  BOOL          read_permission;  /* permission of ISR to read out data */
+#endif /* FF_MULTI_PORT */
+
+  ULONG         lines;            /* status of V.24 lines */
+  ULONG         prev_lines;       /* old status of V.24 lines */
+  UBYTE         dlc_instance;     /* instance of DLC table */
+  BOOL          escape;           /* control escape character received */
+  UBYTE         receive_state;    /* state of reception */
+  UBYTE         analyze_state;    /* state of frame analysis */
+  UBYTE         fcs;              /* calculated fcs */
+  UBYTE         address_field;    /* frame address field */
+  USHORT        stored_len;       /* length of stored information field */
+#ifdef _SIMULATION_
+  T_desc2*      sim_buffer;       /* to simulate driver reception buffer */
+  USHORT        sim_pos;          /* position to read next byte */
+  BOOL          sim_send;         /* send DTI_GETDATA_REQ */
+#endif /* _SIMULATION_ */
+} T_RX_DATA;
+
+
+typedef struct /* T_TX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+#ifndef FF_MULTI_PORT
+#ifdef WIN32
+  NU_HISR       tx_HISR;
+#endif
+#endif /* !FF_MULTI_PORT */
+
+  /*
+   * ab hier service spezif.
+   */
+#ifdef FF_MULTI_PORT
+  T_desc2*      mux_buffer;         /* buffer in multiplexer mode */
+  USHORT        mux_pos;            /* transmit position in multiplexer mode */
+  BOOL          waiting_for_space;  /* waiting for indication of UART driver */
+#ifdef _SIMULATION_
+  T_desc2*      sim_buffer;         /* to simulate driver transsion buffer */
+  USHORT        sim_sent;           /* already sent bytes */
+  BOOL          sim_waiting;        /* waiting for READY */
+#endif /* _SIMULATION_ */
+#else /* FF_MULTI_PORT */
+  T_BIT         cldFromIrq;         /* indicator whether it is an IRQ call */
+  T_reInstMode  *reInstall;         /* reinstallation mode */
+  UBYTE         ndest;              /* number of writeable fragments */
+  UBYTE         *dest[2];           /* addresses of writeable fragments */
+  USHORT        *size;              /* sizes of writeable fragments */
+#endif /* FF_MULTI_PORT */
+
+  ULONG         lines;              /* status of V.24 lines */
+  UBYTE         dlc_instance;       /* instance of global channel table */
+  UBYTE         p_zero;             /* relative zero for priority counter */
+  UBYTE         send_state;         /* indicator whether TX is sending */
+} T_TX_DATA;
+
+
+typedef struct /* T_DTX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+  /*
+   * service specific:
+   */
+  /* stores generic data descriptor to send */
+  T_desc2               *to_send_data;
+  /* current size of to send data descriptor */
+  USHORT                cur_desc_size;
+  /* next to write position in current descriptor */
+  USHORT                write_pos;
+  /* multiplier to dynamically adapt cur_desc_size; min. is 3 */
+  USHORT                size_multiplier;
+  /* flow control state (X bit) */
+  UBYTE                 st_flow;
+  /* line state SA */
+  UBYTE                 st_line_sa;
+  /* line state SB */
+  UBYTE                 st_line_sb;
+  /* escape state */
+  UBYTE                 st_break_len;
+  /* indicator whether line states changed */
+  BOOL                  lines_changed;
+  /* state of internal data receiving */
+  T_DTX_RECEIVING_STATE receiving_state;
+  /* indicator whether data flow is enabled or disabled */
+  T_DATA_FLOW_STATE     data_flow;
+#if defined DTILIB
+/* state of DTILIB connection */
+  UBYTE                 dti_dtx_state;
+#else
+  /* vsi handle for uplink of this entity */
+  T_HANDLE              hComm_DTX_UPLINK;
+#endif
+  /* dlc instance wich belongs to this DTX instance */
+  UBYTE                 dlc_instance;
+  /* enable/disable escape sequence detection */
+  UBYTE                 detect_escape;
+  /* escape sequence detection state */
+  T_ESD_STATE           esd_state;
+  /* escape sequence detection guard period time */
+  T_TIME                esd_guard_time;
+  /* escape sequence detection scan position */
+  USHORT                esd_pos;
+#ifdef _SIMULATION_
+  char                  *esd_state_name;
+#endif
+} T_DTX_DATA;
+
+
+typedef struct /* T_DRX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+  /*
+   * service specific:
+   */
+  /* DRX currently sending via UART? */
+  T_DRX_SENDING_STATE sending_state;
+  /* data flow enabled/disabled */
+  T_DATA_FLOW_STATE   data_flow;
+
+  /* data descriptor received via DTI */
+  T_desc2*            received_data;
+  /* already processed data */
+  USHORT              read_pos;
+#if defined DTILIB
+  /* state of DTILIB connection */
+  UBYTE               dti_drx_state;
+#else
+  /* vsi handle for uplink of this entity */
+  T_HANDLE            hComm_DRX_UPLINK;
+#endif
+  /* dlc instance wich belongs to this DRX instance */
+  UBYTE               dlc_instance;
+} T_DRX_DATA;
+
+
+typedef struct /* T_RT_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+
+  /*
+   * service specific:
+   */
+  T_TIMER_STATE               state_t1;         /* state of timer T1 */
+  T_TIMER_STATE               state_t2;         /* state of timer T2 */
+  T_TIMER_STATE               state_t3;         /* state of timer T3 */
+  T_TIMER_STATE               state_tesd;       /* state of timer TESD */
+  T_TIME                      t1;               /* start value of timer T1 */
+  T_TIME                      t2;               /* start value of timer T2 */
+  T_TIME                      t3;               /* start value of timer T3 */
+  T_TIME                      tesd;             /* start value of timer TESD */
+
+} T_RT_DATA;
+
+
+/*
+ * global channel structure
+ */
+typedef struct /* T_DLC */
+{
+  T_DRX_DATA  *drx;         /* instance of appropriate DRX service */
+  T_DTX_DATA  *dtx;         /* instance of appropriate DTX service */
+
+  UBYTE       dlci;         /* Data Link Connection Identifier */
+  UBYTE       priority;     /* priority of dlc */
+#if defined DTILIB
+  UBYTE       dti_state;    /* state of DTILIB connection */
+#else
+  T_HANDLE    hCommUPLINK;  /* VSI connection handle */
+#endif
+  UBYTE       connection_state; /* state of DLC connection */
+
+  /*
+   * information for service TX
+   */
+  T_desc2* transmit_data;   /* data to transmit to the TE */
+  USHORT  transmit_pos;     /* start position to transmit */
+  UBYTE   p_counter;        /* priority counter to dermine send interval */
+
+  /*
+   * information for service RX
+   */
+  T_desc2* receive_data;    /* descriptor to write */
+  USHORT  receive_pos;      /* start position to write */
+  USHORT  receive_size;     /* size of write descriptor */
+  UBYTE   receive_process;  /* state of receive process */
+
+  /*
+   * information for service KER
+   */
+  T_desc2* last_command;    /* last sent command frame */
+  T_desc2* next_command;    /* next command frames to send */
+  UBYTE   retransmissions;  /* number of retransmissions of command frame */
+  ULONG   lines;            /* line states of DLC */
+  UBYTE   service;
+  UBYTE   codec;
+  ULONG   received_prim;    /* bitfield of received UART primitives */
+  BOOL    flushed;          /* indicator whether DLC is flushed */
+} T_DLC;
+
+
+/*
+ * summery of all service
+ */
+
+typedef struct /* T_UART_DATA */
+{
+
+  /*
+   * UART layer parameters
+   */
+  UBYTE                       version;
+
+  /*
+   * Service data structures
+   *
+   * Services with multiple incarnations require an array of structures
+   * named xxx_base[] with xxx = service abbrevation, and additionally a
+   * pointer named *xxx, which will be accessed instead of xxx_base.
+   *
+   * Services with only one incarnation just have to declare one structure
+   * named xxx (no need for xxx_base[] and *xxx).
+   *
+   * The differentiation between the two access possibilites is made with
+   * the defines of the service names above (UART_SERVICE_XXX).
+   */
+  T_KER_DATA                           ker;
+  T_RX_DATA                            rx;
+  T_TX_DATA                            tx;
+  T_DRX_DATA                           drx_base[UART_MAX_NUMBER_OF_CHANNELS];
+  T_DRX_DATA                           *drx;
+  T_DTX_DATA                           dtx_base[UART_MAX_NUMBER_OF_CHANNELS];
+  T_DTX_DATA                           *dtx;
+  T_RT_DATA                            rt;
+
+  /*
+   * global UART variables
+   */
+  UBYTE             device;         /* index of the UART channel for this instance */
+  USHORT            n1;             /* max. length of a frame in multiplexer mode */
+  UBYTE             xon;            /* XON character for software flow control */
+  UBYTE             xoff;           /* XOFF character for software flow control */
+  T_DLC             dlc_table[UART_MAX_NUMBER_OF_CHANNELS + 1]; /* channel table */
+  UBYTE             dlc_instance[64]; /* lookup table for for DLC instances */
+  USHORT            timer_t1_index; /* Index of timer T1 in this instance */
+  USHORT            timer_t2_index; /* Index of timer T2 in this instance */
+  USHORT            timer_t3_index; /* Index of timer T3 in this instance */
+  USHORT            timer_tesd_index;/* Index of timer TESD in this instance */
+  UBYTE             act_ec;         /* Escape Character */
+  USHORT            act_gp;         /* Guard Period */
+
+#ifdef WIN32
+  UBYTE   HISR_stack[HISR_STACK_SIZE];
+#endif
+
+  /*
+   * global UART constants
+   */
+  UBYTE*            fcstab; /* lookup table for FCS calculation */
+} T_UART_DATA;
+
+#ifndef DTILIB
+/*
+ * global table which maps an unique c_id to
+ * pointers of DRX/DTX instances which serve this channel
+ */
+typedef struct /* T_UART_CID_TABLE */
+{
+  UBYTE         c_id;           /* channel id */
+  T_UART_DATA*  uart_data;      /* pointer to UART data for this channel */
+  T_DRX_DATA*   drx;            /* pointer to DRX service for this channel */
+  T_DTX_DATA*   dtx;            /* pointer to DTX service for this channel */
+} T_UART_CID_TABLE;
+#endif /* DTILIB */
+
+/*==== EXPORT =====================================================*/
+
+
+/*
+ * Entity data base
+ */
+
+#ifdef UART_PEI_C
+/*
+ * FCS lookup table
+ */
+static UBYTE uart_fcstable_base[256] = { /* reversed, 8-bit, poly=0x07 */
+    0x00, 0x91, 0xE3, 0x72, 0x07, 0x96, 0xE4, 0x75,
+    0x0E, 0x9F, 0xED, 0x7C, 0x09, 0x98, 0xEA, 0x7B,
+    0x1C, 0x8D, 0xFF, 0x6E, 0x1B, 0x8A, 0xF8, 0x69,
+    0x12, 0x83, 0xF1, 0x60, 0x15, 0x84, 0xF6, 0x67,
+    0x38, 0xA9, 0xDB, 0x4A, 0x3F, 0xAE, 0xDC, 0x4D,
+    0x36, 0xA7, 0xD5, 0x44, 0x31, 0xA0, 0xD2, 0x43,
+    0x24, 0xB5, 0xC7, 0x56, 0x23, 0xB2, 0xC0, 0x51,
+    0x2A, 0xBB, 0xC9, 0x58, 0x2D, 0xBC, 0xCE, 0x5F,
+    0x70, 0xE1, 0x93, 0x02, 0x77, 0xE6, 0x94, 0x05,
+    0x7E, 0xEF, 0x9D, 0x0C, 0x79, 0xE8, 0x9A, 0x0B,
+    0x6C, 0xFD, 0x8F, 0x1E, 0x6B, 0xFA, 0x88, 0x19,
+    0x62, 0xF3, 0x81, 0x10, 0x65, 0xF4, 0x86, 0x17,
+    0x48, 0xD9, 0xAB, 0x3A, 0x4F, 0xDE, 0xAC, 0x3D,
+    0x46, 0xD7, 0xA5, 0x34, 0x41, 0xD0, 0xA2, 0x33,
+    0x54, 0xC5, 0xB7, 0x26, 0x53, 0xC2, 0xB0, 0x21,
+    0x5A, 0xCB, 0xB9, 0x28, 0x5D, 0xCC, 0xBE, 0x2F,
+    0xE0, 0x71, 0x03, 0x92, 0xE7, 0x76, 0x04, 0x95,
+    0xEE, 0x7F, 0x0D, 0x9C, 0xE9, 0x78, 0x0A, 0x9B,
+    0xFC, 0x6D, 0x1F, 0x8E, 0xFB, 0x6A, 0x18, 0x89,
+    0xF2, 0x63, 0x11, 0x80, 0xF5, 0x64, 0x16, 0x87,
+    0xD8, 0x49, 0x3B, 0xAA, 0xDF, 0x4E, 0x3C, 0xAD,
+    0xD6, 0x47, 0x35, 0xA4, 0xD1, 0x40, 0x32, 0xA3,
+    0xC4, 0x55, 0x27, 0xB6, 0xC3, 0x52, 0x20, 0xB1,
+    0xCA, 0x5B, 0x29, 0xB8, 0xCD, 0x5C, 0x2E, 0xBF,
+    0x90, 0x01, 0x73, 0xE2, 0x97, 0x06, 0x74, 0xE5,
+    0x9E, 0x0F, 0x7D, 0xEC, 0x99, 0x08, 0x7A, 0xEB,
+    0x8C, 0x1D, 0x6F, 0xFE, 0x8B, 0x1A, 0x68, 0xF9,
+    0x82, 0x13, 0x61, 0xF0, 0x85, 0x14, 0x66, 0xF7,
+    0xA8, 0x39, 0x4B, 0xDA, 0xAF, 0x3E, 0x4C, 0xDD,
+    0xA6, 0x37, 0x45, 0xD4, 0xA1, 0x30, 0x42, 0xD3,
+    0xB4, 0x25, 0x57, 0xC6, 0xB3, 0x22, 0x50, 0xC1,
+    0xBA, 0x2B, 0x59, 0xC8, 0xBD, 0x2C, 0x5E, 0xCF
+};
+
+T_UART_DATA uart_data_base[ UART_INSTANCES ], *uart_data;
+
+#ifndef DTILIB
+/*
+ * global table which maps an unique c_id to the instance
+ * number of the UART instance which serves this channel
+ */
+T_UART_CID_TABLE          uart_cid_table[ UART_INSTANCES * \
+                              UART_MAX_NUMBER_OF_CHANNELS ];
+#endif /* !DTILIB */
+
+#else /* UART_PEI_C */
+EXTERN UBYTE              uart_fcstable_base[256];
+EXTERN T_UART_DATA        uart_data_base[], *uart_data;
+#ifndef DTILIB
+EXTERN T_UART_CID_TABLE   uart_cid_table[];
+#endif /* !UART_DTILIB */
+/*
+ * function prototypes
+ */
+#ifdef FF_MULTI_PORT
+EXTERN void pei_uart_driver_signal (T_DRV_SIGNAL *SigPtr);
+#endif /* FF_MULTI_PORT */
+#endif /* UART_PEI_C */
+
+#define ENTITY_DATA           uart_data
+
+/*
+ * prefix service functions
+ */
+#define ker_init              _ENTITY_PREFIXED(ker_init)
+#define rx_init               _ENTITY_PREFIXED(rx_init)
+#define tx_init               _ENTITY_PREFIXED(tx_init)
+#define drx_init              _ENTITY_PREFIXED(drx_init)
+#define dtx_init              _ENTITY_PREFIXED(dtx_init)
+#define rt_init               _ENTITY_PREFIXED(rt_init)
+#define rx_read_data          _ENTITY_PREFIXED(rx_read_data)
+#define tx_write_data         _ENTITY_PREFIXED(tx_write_data)
+#define tx_create_hdlc_frame  _ENTITY_PREFIXED(tx_create_hdlc_frame)
+
+#if defined (DTILIB)
+#ifdef _SIMULATION_
+#define sig_dti_ker_connection_opened_ind                     \
+         _ENTITY_PREFIXED(sig_dti_ker_connection_opened_ind)
+#define sig_dti_ker_connection_closed_ind                     \
+         _ENTITY_PREFIXED(sig_dti_ker_connection_closed_ind)
+#define sig_dti_drx_data_received_ind                         \
+         _ENTITY_PREFIXED(sig_dti_drx_data_received_ind)
+#define sig_dti_dtx_tx_buffer_full_ind                        \
+         _ENTITY_PREFIXED(sig_dti_dtx_tx_buffer_full_ind)
+#define sig_dti_dtx_tx_buffer_ready_ind                       \
+         _ENTITY_PREFIXED(sig_dti_dtx_tx_buffer_ready_ind)
+
+#ifdef DTI2
+/*
+ * for the driver-simulation dti channel, the c_id parameter
+ * is already in use for transmission of control information
+ * (which was formerly stored in the tui .. ;), unfortunately.
+ * NOTE: not yet implemented!!!
+ */
+#define UART_TEST_C_ID_1            0
+#define UART_TEST_C_ID_2            1
+
+
+
+/*
+ * these are __in no way__ real link_ids. Instead, the variable is used for
+ * communication between the entity and the test environment, here. In
+ * previous versions, the tui was used for this, but since DTI2 primitives do
+ * not contain such a parameter any more, the dirty work has been passed on to
+ * the link_id ..
+ *
+ * This is directly taken from
+ */
+
+#define LINK_READDATA_PORT_1   0 /* misused link_id for read_data call */
+#define LINK_DISABLE_PORT_1    1 /* misused link_id for disable call */
+#define LINK_ENABLE_PORT_1     2 /* misused link_id for enable call */
+#define LINK_WRITEDATA_PORT_1  3 /* misused link_id for write_data call */
+
+#define LINK_READDATA_PORT_2  10 /* misused link_id for read_data call */
+#define LINK_DISABLE_PORT_2   11 /* misused link_id for disable call */
+#define LINK_ENABLE_PORT_2    12 /* misused link_id for enable call */
+#define LINK_WRITEDATA_PORT_2 13 /* misused link_id for write_data call */
+
+#define LINK_UART_OUT_PORT_1   0 /* misused link_id of UART_OUT test interface */
+#define LINK_UART_OUT_PORT_2  10 /* misused link_id of UART_OUT test interface */
+
+#define LINK_PORT_THRESHOLD	   9 /* to be able to distinguish between port 1 and port2 */
+
+#endif /* DTI2 */
+
+#endif  /* _SIMULATION_ */
+
+#endif  /* DTILIB */
+
+
+/*
+ * Communication handles (see also UART_PEI.C)
+ */
+#ifdef UART_PEI_C
+
+       T_HANDLE hCommMMI          = VSI_ERROR;
+       T_HANDLE hCommUART         = VSI_ERROR;
+       T_HANDLE UART_handle;
+
+/*
+ * make the pei_create function unique
+ */
+#define pei_create              _ENTITY_PREFIXED(pei_create)
+
+#else /* UART_PEI_C */
+
+  EXTERN T_HANDLE hCommMMI;
+  EXTERN T_HANDLE hCommUART;
+  EXTERN T_HANDLE UART_handle;
+  /*
+   * functions for switching of entities/instances
+   */
+#ifndef DTILIB
+  EXTERN UBYTE    pei_select_instances( UBYTE incoming_c_id );
+#endif
+
+#endif /* UART_PEI_C */
+
+#ifdef DTILIB
+  EXTERN DTI_HANDLE uart_hDTI;
+#endif
+
+#endif /* !UART_H */