gdb/w89k-rom.c

   1 /* Remote target glue for the WinBond ROM monitor running on the "Cougar"
   2    W89k eval board.
   3
   4    Copyright 1995 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #include "defs.h"
  24 #include "gdbcore.h"
  25 #include "target.h"
  26 #include "monitor.h"
  27 #include "serial.h"
  28 #include "xmodem.h"
  29
  30
  31 static void w89k_open PARAMS ((char *args, int from_tty));
  32
  33 /*
  34  * this array of registers need to match the indexes used by GDB. The
  35  * whole reason this exists is cause the various ROM monitors use
  36  * different strings than GDB does, and doesn't support all the
  37  * registers either. So, typing "info reg sp" becomes a "r30".
  38  */
  39
  40 static char *w89k_regnames[NUM_REGS] =
  41 {
  42   "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
  43   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
  44   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  45   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
  46   "SAR", "PC", NULL, NULL, NULL, "EIEM", "IIR", "IVA",
  47   "IOR", "IPSW", NULL, NULL, NULL, NULL, NULL,
  48   NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  49   "CCR", NULL, NULL, "TR0", "TR1",
  50 };
  51
  52 static void
  53 w89k_supply_register (regname, regnamelen, val, vallen)
  54      char *regname;
  55      int regnamelen;
  56      char *val;
  57      int vallen;
  58 {
  59   int numregs;
  60   int regno;
  61
  62   numregs = 1;
  63   regno = -1;
  64
  65   if (regnamelen == 2)
  66     switch (regname[0])
  67       {
  68       case 'r':
  69         numregs = 4;
  70         switch (regname[1])
  71           {
  72           case '0':
  73             regno = R0_REGNUM;
  74             break;
  75           case '4':
  76             regno = R0_REGNUM + 4;
  77             break;
  78           case '8':
  79             regno = R0_REGNUM + 8;
  80             break;
  81           }
  82         break;
  83       case 'P':
  84         if (regname[1] == 'C')
  85           regno = PC_REGNUM;
  86         break;
  87       }
  88   else if (regnamelen == 3)
  89     switch (regname[0])
  90       {
  91       case 'r':
  92         numregs = 4;
  93         if (regname[1] == '1' && regname[2] == '2')
  94           regno = R0_REGNUM + 12;
  95         else if (regname[1] == '1' && regname[2] == '6')
  96           regno = R0_REGNUM + 16;
  97         else if (regname[1] == '2' && regname[2] == '0')
  98           regno = R0_REGNUM + 20;
  99         else if (regname[1] == '2' && regname[2] == '4')
 100           regno = R0_REGNUM + 24;
 101         else if (regname[1] == '2' && regname[2] == '8')
 102           regno = R0_REGNUM + 28;
 103         break;
 104       case 'R':
 105         if (regname[1] == 'C' && regname[2] == 'R')
 106           regno = RCR_REGNUM;
 107         break;
 108       case 'C':
 109         if (regname[1] == 'C' && regname[2] == 'R')
 110           regno = CCR_REGNUM;
 111         break;
 112       case 'S':
 113         if (regname[1] == 'A' && regname[2] == 'R')
 114           regno = SAR_REGNUM;
 115         break;
 116       case 'I':
 117         if (regname[1] == 'I' && regname[2] == 'R')
 118           regno = IIR_REGNUM;
 119         else if (regname[1] == 'O' && regname[2] == 'R')
 120           regno = IOR_REGNUM;
 121         break;
 122       case 'T':
 123         numregs = 4;
 124         if (regname[1] == 'R')
 125           if (regname[2] == '0')
 126             regno = TR0_REGNUM;
 127           else if (regname[2] == '4')
 128             regno = TR0_REGNUM + 4;
 129         break;
 130       }
 131   else if (regnamelen == 4)
 132     switch (regname[0])
 133       {
 134       case 'E':
 135         if (regname[1] == 'I')
 136           if (regname[2] == 'E' && regname[3] == 'M')
 137             regno = EIEM_REGNUM;
 138         break;
 139       case 'I':
 140         if (regname[1] == 'P' && regname[2] == 'S' && regname[3] == 'W')
 141           regno = IPSW_REGNUM;
 142         break;
 143       }
 144   else if (regnamelen == 5)
 145     switch (regname[0])
 146       {
 147       case 'I':
 148         if (regname[1] == 'A'
 149             && regname[2] == 'O'
 150             && regname[3] == 'Q'
 151             && regname[4] == 'B')
 152           regno = PCOQ_TAIL_REGNUM;
 153         break;
 154       }
 155
 156   if (regno >= 0)
 157     while (numregs-- > 0)
 158       val = monitor_supply_register (regno++, val);
 159 }
 160
 161 static int hashmark = 1;        /* flag set by "set hash" */
 162
 163 extern struct monitor_ops w89k_cmds;    /* fwd decl */
 164
 165 static void
 166 w89k_load (desc, file, hashmark)
 167      serial_t desc;
 168      char *file;
 169      int hashmark;
 170 {
 171   bfd *abfd;
 172   asection *s;
 173   char *buffer;
 174   int i;
 175
 176   buffer = alloca (XMODEM_PACKETSIZE);
 177
 178   abfd = bfd_openr (file, 0);
 179   if (!abfd)
 180     {
 181       printf_filtered ("Unable to open file %s\n", file);
 182       return;
 183     }
 184
 185   if (bfd_check_format (abfd, bfd_object) == 0)
 186     {
 187       printf_filtered ("File is not an object file\n");
 188       return;
 189     }
 190
 191   for (s = abfd->sections; s; s = s->next)
 192     if (s->flags & SEC_LOAD)
 193       {
 194         bfd_size_type section_size;
 195
 196         printf_filtered ("%s\t: 0x%4x .. 0x%4x  ", s->name, s->vma,
 197                          s->vma + s->_raw_size);
 198         gdb_flush (gdb_stdout);
 199
 200         monitor_printf (w89k_cmds.load, s->vma);
 201         if (w89k_cmds.loadresp)
 202           monitor_expect (w89k_cmds.loadresp, NULL, 0);
 203
 204         xmodem_init_xfer (desc);
 205
 206         section_size = bfd_section_size (abfd, s);
 207
 208         for (i = 0; i < section_size; i += XMODEM_DATASIZE)
 209           {
 210             int numbytes;
 211
 212             numbytes = min (XMODEM_DATASIZE, section_size - i);
 213
 214             bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
 215                                       numbytes);
 216
 217             xmodem_send_packet (desc, buffer, numbytes, hashmark);
 218
 219             if (hashmark)
 220               {
 221                 putchar_unfiltered ('#');
 222                 gdb_flush (gdb_stdout);
 223               }
 224           }                     /* Per-packet (or S-record) loop */
 225
 226         xmodem_finish_xfer (desc);
 227
 228         monitor_expect_prompt (NULL, 0);
 229
 230         putchar_unfiltered ('\n');
 231       }                         /* Loadable sections */
 232
 233   if (hashmark)
 234     putchar_unfiltered ('\n');
 235 }
 236
 237 /*
 238  * Define the monitor command strings. Since these are passed directly
 239  * through to a printf style function, we need can include formatting
 240  * strings. We also need a CR or LF on the end.
 241  */
 242
 243 static struct target_ops w89k_ops;
 244
 245 static char *w89k_inits[] =
 246 {"\n", NULL};
 247
 248 static struct monitor_ops w89k_cmds;
 249 static void
 250 init_w89k_cmds (void)
 251 {
 252   w89k_cmds.flags = MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR;  /* flags */
 253   w89k_cmds.init = w89k_inits;  /* Init strings */
 254   w89k_cmds.cont = "g\n";       /* continue command */
 255   w89k_cmds.step = "t\n";       /* single step */
 256   w89k_cmds.stop = "\003";      /* Interrupt char (^C) */
 257   w89k_cmds.set_break = "bp %x\n";      /* set a breakpoint */
 258   w89k_cmds.clr_break = "bc %x\n";      /* clear a breakpoint */
 259   w89k_cmds.clr_all_break = "bc *\n";   /* clear all breakpoints */
 260   w89k_cmds.fill = "f %x %x %x\n";      /* memory fill cmd */
 261   w89k_cmds.setmem.cmdb = "eb %x %x\n";         /* setmem.cmdb (addr, value) */
 262   w89k_cmds.setmem.cmdw = "eh %x %x\n";         /* setmem.cmdw (addr, value) */
 263   w89k_cmds.setmem.cmdl = "ew %x %x\n";         /* setmem.cmdl (addr, value) */
 264   w89k_cmds.setmem.cmdll = NULL;        /* setmem.cmdll (addr, value) */
 265   w89k_cmds.setmem.resp_delim = NULL;   /* setreg.resp_delim */
 266   w89k_cmds.setmem.term = NULL; /* setreg.term */
 267   w89k_cmds.setmem.term_cmd = NULL;     /* setreg.term_cmd */
 268   w89k_cmds.getmem.cmdb = "db %x %x\n";         /* getmem.cmdb (startaddr, endaddr) */
 269   w89k_cmds.getmem.cmdw = "dh %x %x\n";         /* getmem.cmdw (startaddr, endaddr) */
 270   w89k_cmds.getmem.cmdl = "dw %x %x\n";         /* getmem.cmdl (startaddr, endaddr) */
 271   w89k_cmds.getmem.cmdll = NULL;        /* getmem.cmdll (startaddr, endaddr) */
 272   w89k_cmds.getmem.resp_delim = "  ";   /* getmem.resp_delim */
 273   w89k_cmds.getmem.term = NULL; /* getmem.term */
 274   w89k_cmds.getmem.term_cmd = NULL;     /* getmem.term_cmd */
 275   w89k_cmds.setreg.cmd = "r %s %x\n";   /* setreg.cmd (name, value) */
 276   w89k_cmds.setreg.resp_delim = NULL;   /* setreg.resp_delim */
 277   w89k_cmds.setreg.term = NULL; /* setreg.term */
 278   w89k_cmds.setreg.term_cmd = NULL;     /* setreg.term_cmd */
 279   w89k_cmds.getreg.cmd = "r %s\n";      /* getreg.cmd (name) */
 280   w89k_cmds.getreg.resp_delim = "\r";   /* getreg.resp_delim */
 281   w89k_cmds.getreg.term = NULL; /* getreg.term */
 282   w89k_cmds.getreg.term_cmd = NULL;     /* getreg.term_cmd */
 283   w89k_cmds.dump_registers = "r\n";     /* dump_registers */
 284   w89k_cmds.register_pattern = "\\(\\w+\\)\\( +[0-9a-fA-F]+\\b\\)+";
 285   w89k_cmds.supply_register = w89k_supply_register;     /* supply_register */
 286   w89k_cmds.load_routine = w89k_load;   /* load routine */
 287   w89k_cmds.load = "u %x\n";    /* download command */
 288   w89k_cmds.loadresp = "\021";  /* load response (^Q) */
 289   w89k_cmds.prompt = "ROM>";    /* monitor command prompt */
 290   w89k_cmds.line_term = "\n";   /* end-of-line terminator */
 291   w89k_cmds.cmd_end = NULL;     /* optional command terminator */
 292   w89k_cmds.target = &w89k_ops; /* target operations */
 293   w89k_cmds.stopbits = SERIAL_1_STOPBITS;       /* number of stop bits */
 294   w89k_cmds.regnames = w89k_regnames;   /* register names */
 295   w89k_cmds.magic = MONITOR_OPS_MAGIC;  /* magic */
 296 }                               /* init_w89k_cmds */
 297
 298 static void
 299 w89k_open (args, from_tty)
 300      char *args;
 301      int from_tty;
 302 {
 303   monitor_open (args, &w89k_cmds, from_tty);
 304 }
 305
 306 void
 307 _initialize_w89k ()
 308 {
 309   init_w89k_cmds ();
 310   init_monitor_ops (&w89k_ops);
 311
 312   w89k_ops.to_shortname = "w89k";
 313   w89k_ops.to_longname = "WinBond's debug monitor for the W89k Eval board";
 314   w89k_ops.to_doc = "Debug on a WinBond W89K eval board.\n\
 315 Specify the serial device it is connected to (e.g. /dev/ttya).";
 316   w89k_ops.to_open = w89k_open;
 317
 318   add_target (&w89k_ops);
 319 }