Initial creation of sourceware repository

1 files changed, 0 insertions, 176 deletions

diff --git a/gdb/rdi-share/tx.c b/gdb/rdi-share/tx.c
deleted file mode 100644
index a52286c..0000000
--- a/gdb/rdi-share/tx.c
+++ /dev/null
@@ -1,176 +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: Character based packet transmission engine
- */
-
-#include <stdarg.h>    /* ANSI varargs support */
-#include "angel.h"     /* Angel system definitions */
-#include "endian.h"    /* Endian independant memory access macros */
-#include "crc.h"       /* crc generation definitions and headers */
-#include "rxtx.h"
-#include "channels.h"
-#include "buffers.h"
-#include "logging.h"
-
-/* definitions to describe the engines state */
-#define N_STX           0x0  /* first 2 bits for N_ */
-#define N_BODY          0x1
-#define N_ETX           0x2
-#define N_IDLE          0x3
-#define N_MASK          0x3 /* mask for the Encapsulator state */
-
-#define E_PLAIN         (0x0 << 2) /* 3rd bit for E_ */
-#define E_ESC           (0x1 << 2) /* 3rd bit for E_ */
-#define E_MASK          (0x1 << 2) /* mask for the Escaper state */
-
-#define F_HEAD          (0x0 << 3) /* 4th and 5th bits for F_ */
-#define F_DATA          (0x1 << 3) 
-#define F_CRC           (0x1 << 4)
-#define F_MASK          (0x3 << 3) /* mask for the Escaper state */
-
-static unsigned char escape(unsigned char ch_in, struct te_state *txstate);
-
-void Angel_TxEngineInit(const struct re_config *txconfig,
-                        const struct data_packet *packet, 
-                        struct te_state *txstate){
-  IGNORE(packet);
-  txstate->tx_state = N_STX | E_PLAIN | F_HEAD;
-  txstate->field_c = 0;
-  txstate->encoded = 0;
-  txstate->config = txconfig;
-  txstate->crc = 0;
-}
-
-te_status Angel_TxEngine(const struct data_packet *packet,
-                         struct te_state *txstate,
-                         unsigned char *tx_ch){
-  /* TODO: gaurd on long/bad packets */
-  /*
-   * encapsulate the packet, framing has been moved from a seperate
-   * function into the encapsulation routine as it needed too much
-   * inherited state for it to be sensibly located elsewhere
-   */
-  switch ((txstate->tx_state) & N_MASK){
-  case N_STX:
-#ifdef DO_TRACE
-    __rt_trace("txe-stx ");
-#endif
-    txstate->tx_state = (txstate->tx_state & ~N_MASK) | N_BODY;
-    *tx_ch = txstate->config->stx;
-    txstate->field_c = 3; /* set up for the header */
-    txstate->crc = startCRC32; /* set up basic crc */
-    return TS_IN_PKT;
-  case N_BODY:{
-    switch (txstate->tx_state & F_MASK) {
-    case F_HEAD:
-#ifdef DO_TRACE
-    __rt_trace("txe-head ");
-#endif
-      if (txstate->field_c == 3) {
-        /* send type */
-        *tx_ch = escape(packet->type, txstate);
-        return TS_IN_PKT;
-      }
-      else {
-        *tx_ch = escape((packet->len >> (txstate->field_c - 1) * 8) & 0xff,
-                      txstate);
-          if (txstate->field_c == 0) {
-            /* move on to the next state */
-            txstate->tx_state = (txstate->tx_state & ~F_MASK) | F_DATA;
-            txstate->field_c = packet->len;
-          }
-        return TS_IN_PKT;
-      }
-    case F_DATA:
-#ifdef DO_TRACE
-    __rt_trace("txe-data ");
-#endif
-      *tx_ch = escape(packet->data[packet->len - txstate->field_c], txstate);
-      if (txstate->field_c == 0) {
-        /* move on to the next state */
-        txstate->tx_state = (txstate->tx_state & ~F_MASK) | F_CRC;
-        txstate->field_c = 4;
-      }      
-      return TS_IN_PKT;
-    case F_CRC:
-#ifdef DO_TRACE
-    __rt_trace("txe-crc ");
-#endif
-     *tx_ch = escape((txstate->crc >> ((txstate->field_c - 1) * 8)) & 0xff,
-                      txstate);
-
-      if (txstate->field_c == 0) {
-#ifdef DO_TRACE
-        __rt_trace("txe crc = 0x%x\n", txstate->crc);
-#endif
-        /* move on to the next state */
-        txstate->tx_state = (txstate->tx_state & ~N_MASK) | N_ETX;
-      }
-      return TS_IN_PKT;     
-    }
-  }
-  case N_ETX:
-#ifdef DO_TRACE
-    __rt_trace("txe-etx\n");
-#endif
-    txstate->tx_state = (txstate->tx_state & ~N_MASK) | N_IDLE;
-    *tx_ch = txstate->config->etx;
-    return TS_DONE_PKT;
-  default:
-#ifdef DEBUG
-    __rt_info("tx default\n");
-#endif
-    txstate->tx_state = (txstate->tx_state & ~N_MASK) | N_IDLE;
-    return TS_IDLE;
-  }
-  /* stop a silly -Wall warning */
-  return (te_status)-1;
-}
-
-/*
- * crc generation occurs in the escape function because it is the only
- * place where we know that we're putting a real char into the buffer
- * rather than an escaped one.
- * We must be careful here not to update the crc when we're sending it
- */
-static unsigned char escape(unsigned char ch_in, struct te_state *txstate) {
-   if (((txstate->tx_state) & E_MASK) == E_ESC) {
-      /* char has been escaped so send the real char */
-#ifdef DO_TRACE
-     __rt_trace("txe-echar ");
-#endif
-      txstate->tx_state = (txstate->tx_state & ~E_MASK) | E_PLAIN;
-      txstate->field_c--;
-      if ((txstate->tx_state & F_MASK) != F_CRC)
-        txstate->crc = crc32( &ch_in, 1, txstate->crc);
-      return ch_in | serial_ESCAPE;
-   }
-   if ((ch_in < 32) && ((txstate->config->esc_set & (1 << ch_in)) != 0)) {
-     /* char needs escaping */
-#ifdef DO_TRACE
-     __rt_trace("txe-esc ");
-#endif
-     txstate->tx_state = (txstate->tx_state & ~E_MASK) | E_ESC;
-     return txstate->config->esc;
-   }
-   /* must be a char that can be sent plain */
-   txstate->field_c--;
-   if ((txstate->tx_state & F_MASK) != F_CRC)
-     txstate->crc = crc32(&ch_in, 1, txstate->crc);
-   return ch_in;
-}
-
-/* EOF tx.c */