Initial creation of sourceware repository

1 files changed, 0 insertions, 263 deletions

diff --git a/gdb/rdi-share/rxtx.h b/gdb/rdi-share/rxtx.h
deleted file mode 100644
index 204e998..0000000
--- a/gdb/rdi-share/rxtx.h
+++ /dev/null
@@ -1,263 +0,0 @@
-/* 
- * Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
- * 
- * This software may be freely used, copied, modified, and distributed
- * provided that the above copyright notice is preserved in all copies of the
- * software.
- */
-
-/*-*-C-*-
- *
- * $Revision$
- *     $Date$
- *
- *
- *   Project: ANGEL
- *
- *     Title:  Definitions required for the rx and tx engines
- */
-
-#ifndef angel_rxtx_h
-#define angel_rxtx_h
-
-
-/*
- * we need a definition for bool, which is "system" dependent
- */
-#ifdef TARGET
-# include "angel.h"
-#else
-# include "host.h"
-#endif
-
-#include "devclnt.h"
-
-/* return status codes for the rx engine */
-typedef enum re_status {
-  RS_WAIT_PKT,
-  RS_IN_PKT,
-  RS_BAD_PKT,
-  RS_GOOD_PKT
-} re_status;
-
-/* return status codes for the tx engine */
-typedef enum te_status {
-  TS_IDLE,
-  TS_IN_PKT,
-  TS_DONE_PKT
-} te_status;
-
-
-/*
- * required serial definitions, they should all be <32, refer to the
- * re_config struct comments for more details
- */
-#define serial_STX    (0x1c) /* data packet start */
-#define serial_ETX    (0x1d) /* packet end */
-#define serial_ESC    (0x1b) /* standard escape character */
-#define serial_XON    (0x11) /* software flow control - enable transmission */
-#define serial_XOFF   (0x13) /* software flow control - disable transmission */
-
-/*
- * All other characters are transmitted clean. If any of the above
- * characters need to be transmitted as part of the serial data stream
- * then the character will be preceded by the "serial_ESC" character,
- * and then the required character transmitted (OR-ed with the
- * "serial_ESCAPE" value, to ensure that the serial stream never has
- * any of the exceptional characters generated by data transfers).
- */
-
-#define serial_ESCAPE   (0x40)  /* OR-ed with escaped characters */
-
-/* bad packet error codes */
-typedef enum re_error {
-  RE_OKAY,
-  RE_U_STX,
-  RE_U_ETX,
-  RE_LEN,
-  RE_CRC,
-  RE_NETX,
-  RE_INTERNAL
-} re_error;
-
-/* a decoded packet */
-struct data_packet {
-  unsigned short  buf_len;      /* should be set by caller */
-  DevChanID       type;         /* valid when status is RS_GOOD_PKT */
-  unsigned short  len;          /* --"--                            */
-  unsigned int    crc;          /* crc for the unescaped pkt */
-  unsigned char   *data;        /* should be set by caller */
-};
-
-/*
- * Purpose: typedef for flow control function
- *
- *  Params:
- *          Input:  fc_char  the flow control character in question
- *          In/Out: cb_data  callback data as set in the fc_data
- *                             field of re_config, typically device id
- *
- * This callback would tpyically respond to received XON and XOFF
- * characters by controlling the transmit side of the device.
- */
-typedef void (*fc_cb_func)(char fc_char, void *cb_data);
-
-
-/*
- * Purpose: typedef for the function to alloc the data buffer 
- *
- *  Params:
- *          In/Out: packet    the data packet: len and type will be set on
- *                              entry, and buf_len and data should
- *                              be set by this routine if successful.
- *                  cb_data   callback data as set in the ba_data
- *                              field of re_config, typically device id
- *
- *         Returns: TRUE      buffer allocated okay
- *                  FALSE     couldn't allocate buffer of required size
- *                              for given type
- *
- * This callback should attempt to acquire a buffer for the data portion
- * of the packet which is currently being received, based on the len and 
- * type fields supplied in packet.
- *
- * angel_DD_RxEng_BufferAlloc() is supplied for use as this callback,
- * and will be sufficient for most devices.
- */
-typedef bool (*BufferAlloc_CB_Fn)(struct data_packet *packet, void *cb_data);
-
-
-/*
- * The static info needed by the engine, may vary per device.
- *
- * fc_set and esc_set are bitmaps, e.g. bit 3 == charcode 3 == ASCII ETX.
- * Thus any of the first 32 charcodes can be set for flow control or to
- * be escaped.
- * 
- * Note that esc_set should include all of fc_set, and should have bits
- * set for stx, etx and esc, as a minimum.
- *
- * If character codes > 31 need to be used then fc_set and esc_set
- * and their handling can be extended to use arrays and bit manipulation
- * macros, potentially up to the full 256 possible chars.
- *
- * Note too that this could/should be shared with the tx engine.
- */
-
-struct re_config {
-  unsigned char     stx;                  /* the STX char for this device */
-  unsigned char     etx;                  /* the ETX --"--                */
-  unsigned char     esc;                  /* the ESC --"--                */
-  unsigned int      fc_set;               /* bitmap of flow control chars */
-  unsigned int      esc_set;              /* bitmap of special chars      */
-  fc_cb_func        fc_callback;          /* flow control callback func   */
-  void              *fc_data;             /* data to pass to fc_callback  */
-  BufferAlloc_CB_Fn ba_callback;          /* buffer alloc callback        */
-  void              *ba_data;             /* data to pass to ba_calback   */
-};
-
-/* the dynamic info needed by the rx engine */
-struct re_state {
-  unsigned char          rx_state; /* 3 bits pkt state, 1 prepro state */
-  unsigned short         field_c;  /* chars left in current field */
-  unsigned short         index;    /* index into buffer */
-  unsigned int           crc;      /* crc accumulator */
-  re_error               error;    /* valid only if status is RS_BAD_PKT */
-  const struct re_config *config;  /* pointer to static config */
-};
-
-/* dynamic state info needed by the tx engine */
-struct te_state {
-  unsigned short         field_c;  /* position in current field */
-  unsigned char          tx_state; /* encodes n,e, and f (2+1+2=5 bits) */
-  unsigned char          encoded;  /* escape-encoded char for transmission */
-  const struct re_config *config;  /* pointer to static config */
-  unsigned int           crc;      /* space for CRC (before escaping) */
-};
-
-/*
- * Function: Angel_RxEngineInit
- *  Purpose: Initialise state (during device init) for engine.
- *
- *   Params:
- *              Input: config   static config info
- *             In/Out: state    internal state
- */
-
-void Angel_RxEngineInit(const struct re_config *config,
-                        struct re_state *state);
-
-/*
- * Function: Angel_RxEngine
- *  Purpose: Rx Engine for character-based devices
- *
- *   Params:
- *              Input: new_ch       the latest character
- *
- *             In/Out: packet       details of packet
- *                                   packet.buf_len and packet.data must
- *                                   be set on entry!
- *                     state        internal state, intially set by
- *                                   angel_RxEngineInit()
- *
- *            Returns: re_status (see above)
- *
- */
-
-re_status Angel_RxEngine(unsigned char new_ch, struct data_packet *packet,
-                         struct re_state *state);
-
-/*
- * This can be used as the buffer allocation callback for the rx engine,
- * and will make use of angel_DD_GetBuffer() [in devdrv.h]. 
- *
- * Saves duplicating this callback function in every device driver that
- * uses the rx engine.
- *
- * Note that this REQUIRES that the device id is installed as ba_data
- * in the rx engine config structure for the driver.
- */
-bool angel_DD_RxEng_BufferAlloc( struct data_packet *packet, void *cb_data );
-
-/*
- * Function: Angel_TxEngineInit
- *  Purpose: Set up tx engine at start of new packet, calculate CRC etc.
- *           (This should perform the actions described under
- *             "Initialisation" above)
- *
- *   Params:
- *              Input: config   static config info
- *                     packet   the packet to transmit
- *             In/Out: state    internal state
- */
-
-void Angel_TxEngineInit(const struct re_config   *config,
-                        const struct data_packet *packet, 
-                        struct te_state    *state);
-
-/*
- * Function: Angel_TxEngine
- *  Purpose: Tx Engine for character-based devices
- *
- *   Params:
- *              Input: packet       details of packet
- *                                   packet.len, packet.data and
- *                                   packet.type must
- *                                   be set on entry!
- *             In/Out: state        internal state, intially set by
- *                                   angel_TxEngineStart()
- *             Output: tx_ch        the character to be transmitted 
- *                                   (NOT SET if return code is TS_IDLE)
- *
- *            Returns: te_status (see above)
- */
-
-te_status Angel_TxEngine(const struct data_packet  *packet,
-                         struct te_state *state,
-                         unsigned char *tx_ch);
-
-
-
-#endif /* !defined(angel_rxtx_h) */
-
-/*  EOF rxtx.h */