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, 1998, 2000, 2001 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 #include "regcache.h"
  30
  31
  32 static void w89k_open (char *args, int from_tty);
  33
  34 /*
  35  * this array of registers need to match the indexes used by GDB. The
  36  * whole reason this exists is cause the various ROM monitors use
  37  * different strings than GDB does, and doesn't support all the
  38  * registers either. So, typing "info reg sp" becomes a "r30".
  39  */
  40
  41 static char *w89k_regnames[NUM_REGS] =
  42 {
  43   "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
  44   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
  45   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  46   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
  47   "SAR", "PC", NULL, NULL, NULL, "EIEM", "IIR", "IVA",
  48   "IOR", "IPSW", NULL, NULL, NULL, NULL, NULL,
  49   NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  50   "CCR", NULL, NULL, "TR0", "TR1",
  51 };
  52
  53 static void
  54 w89k_supply_register (char *regname, int regnamelen, char *val, int vallen)
  55 {
  56   int numregs;
  57   int regno;
  58
  59   numregs = 1;
  60   regno = -1;
  61
  62   if (regnamelen == 2)
  63     switch (regname[0])
  64       {
  65       case 'r':
  66         numregs = 4;
  67         switch (regname[1])
  68           {
  69           case '0':
  70             regno = R0_REGNUM;
  71             break;
  72           case '4':
  73             regno = R0_REGNUM + 4;
  74             break;
  75           case '8':
  76             regno = R0_REGNUM + 8;
  77             break;
  78           }
  79         break;
  80       case 'P':
  81         if (regname[1] == 'C')
  82           regno = PC_REGNUM;
  83         break;
  84       }
  85   else if (regnamelen == 3)
  86     switch (regname[0])
  87       {
  88       case 'r':
  89         numregs = 4;
  90         if (regname[1] == '1' && regname[2] == '2')
  91           regno = R0_REGNUM + 12;
  92         else if (regname[1] == '1' && regname[2] == '6')
  93           regno = R0_REGNUM + 16;
  94         else if (regname[1] == '2' && regname[2] == '0')
  95           regno = R0_REGNUM + 20;
  96         else if (regname[1] == '2' && regname[2] == '4')
  97           regno = R0_REGNUM + 24;
  98         else if (regname[1] == '2' && regname[2] == '8')
  99           regno = R0_REGNUM + 28;
 100         break;
 101       case 'R':
 102         if (regname[1] == 'C' && regname[2] == 'R')
 103           regno = RCR_REGNUM;
 104         break;
 105       case 'C':
 106         if (regname[1] == 'C' && regname[2] == 'R')
 107           regno = CCR_REGNUM;
 108         break;
 109       case 'S':
 110         if (regname[1] == 'A' && regname[2] == 'R')
 111           regno = SAR_REGNUM;
 112         break;
 113       case 'I':
 114         if (regname[1] == 'I' && regname[2] == 'R')
 115           regno = IIR_REGNUM;
 116         else if (regname[1] == 'O' && regname[2] == 'R')
 117           regno = IOR_REGNUM;
 118         break;
 119       case 'T':
 120         numregs = 4;
 121         if (regname[1] == 'R')
 122           if (regname[2] == '0')
 123             regno = TR0_REGNUM;
 124           else if (regname[2] == '4')
 125             regno = TR0_REGNUM + 4;
 126         break;
 127       }
 128   else if (regnamelen == 4)
 129     switch (regname[0])
 130       {
 131       case 'E':
 132         if (regname[1] == 'I')
 133           if (regname[2] == 'E' && regname[3] == 'M')
 134             regno = EIEM_REGNUM;
 135         break;
 136       case 'I':
 137         if (regname[1] == 'P' && regname[2] == 'S' && regname[3] == 'W')
 138           regno = IPSW_REGNUM;
 139         break;
 140       }
 141   else if (regnamelen == 5)
 142     switch (regname[0])
 143       {
 144       case 'I':
 145         if (regname[1] == 'A'
 146             && regname[2] == 'O'
 147             && regname[3] == 'Q'
 148             && regname[4] == 'B')
 149           regno = PCOQ_TAIL_REGNUM;
 150         break;
 151       }
 152
 153   if (regno >= 0)
 154     while (numregs-- > 0)
 155       val = monitor_supply_register (regno++, val);
 156 }
 157
 158 static int hashmark = 1;        /* flag set by "set hash" */
 159
 160 extern struct monitor_ops w89k_cmds;    /* fwd decl */
 161
 162 static void
 163 w89k_load (struct serial *desc, char *file, int hashmark)
 164 {
 165   bfd *abfd;
 166   asection *s;
 167   char *buffer;
 168   int i;
 169
 170   buffer = alloca (XMODEM_PACKETSIZE);
 171
 172   abfd = bfd_openr (file, 0);
 173   if (!abfd)
 174     {
 175       printf_filtered ("Unable to open file %s\n", file);
 176       return;
 177     }
 178
 179   if (bfd_check_format (abfd, bfd_object) == 0)
 180     {
 181       printf_filtered ("File is not an object file\n");
 182       return;
 183     }
 184
 185   for (s = abfd->sections; s; s = s->next)
 186     if (s->flags & SEC_LOAD)
 187       {
 188         bfd_size_type section_size;
 189
 190         printf_filtered ("%s\t: 0x%4x .. 0x%4x  ", s->name, s->vma,
 191                          s->vma + s->_raw_size);
 192         gdb_flush (gdb_stdout);
 193
 194         monitor_printf (w89k_cmds.load, s->vma);
 195         if (w89k_cmds.loadresp)
 196           monitor_expect (w89k_cmds.loadresp, NULL, 0);
 197
 198         xmodem_init_xfer (desc);
 199
 200         section_size = bfd_section_size (abfd, s);
 201
 202         for (i = 0; i < section_size; i += XMODEM_DATASIZE)
 203           {
 204             int numbytes;
 205
 206             numbytes = min (XMODEM_DATASIZE, section_size - i);
 207
 208             bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
 209                                       numbytes);
 210
 211             xmodem_send_packet (desc, buffer, numbytes, hashmark);
 212
 213             if (hashmark)
 214               {
 215                 putchar_unfiltered ('#');
 216                 gdb_flush (gdb_stdout);
 217               }
 218           }                     /* Per-packet (or S-record) loop */
 219
 220         xmodem_finish_xfer (desc);
 221
 222         monitor_expect_prompt (NULL, 0);
 223
 224         putchar_unfiltered ('\n');
 225       }                         /* Loadable sections */
 226
 227   if (hashmark)
 228     putchar_unfiltered ('\n');
 229 }
 230
 231 /*
 232  * Define the monitor command strings. Since these are passed directly
 233  * through to a printf style function, we need can include formatting
 234  * strings. We also need a CR or LF on the end.
 235  */
 236
 237 static struct target_ops w89k_ops;
 238
 239 static char *w89k_inits[] =
 240 {"\n", NULL};
 241
 242 static struct monitor_ops w89k_cmds;
 243 static void
 244 init_w89k_cmds (void)
 245 {
 246   w89k_cmds.flags = MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR;  /* flags */
 247   w89k_cmds.init = w89k_inits;  /* Init strings */
 248   w89k_cmds.cont = "g\n";       /* continue command */
 249   w89k_cmds.step = "t\n";       /* single step */
 250   w89k_cmds.stop = "\003";      /* Interrupt char (^C) */
 251   w89k_cmds.set_break = "bp %x\n";      /* set a breakpoint */
 252   w89k_cmds.clr_break = "bc %x\n";      /* clear a breakpoint */
 253   w89k_cmds.clr_all_break = "bc *\n";   /* clear all breakpoints */
 254   w89k_cmds.fill = "f %x %x %x\n";      /* memory fill cmd */
 255   w89k_cmds.setmem.cmdb = "eb %x %x\n";         /* setmem.cmdb (addr, value) */
 256   w89k_cmds.setmem.cmdw = "eh %x %x\n";         /* setmem.cmdw (addr, value) */
 257   w89k_cmds.setmem.cmdl = "ew %x %x\n";         /* setmem.cmdl (addr, value) */
 258   w89k_cmds.setmem.cmdll = NULL;        /* setmem.cmdll (addr, value) */
 259   w89k_cmds.setmem.resp_delim = NULL;   /* setreg.resp_delim */
 260   w89k_cmds.setmem.term = NULL; /* setreg.term */
 261   w89k_cmds.setmem.term_cmd = NULL;     /* setreg.term_cmd */
 262   w89k_cmds.getmem.cmdb = "db %x %x\n";         /* getmem.cmdb (startaddr, endaddr) */
 263   w89k_cmds.getmem.cmdw = "dh %x %x\n";         /* getmem.cmdw (startaddr, endaddr) */
 264   w89k_cmds.getmem.cmdl = "dw %x %x\n";         /* getmem.cmdl (startaddr, endaddr) */
 265   w89k_cmds.getmem.cmdll = NULL;        /* getmem.cmdll (startaddr, endaddr) */
 266   w89k_cmds.getmem.resp_delim = "  ";   /* getmem.resp_delim */
 267   w89k_cmds.getmem.term = NULL; /* getmem.term */
 268   w89k_cmds.getmem.term_cmd = NULL;     /* getmem.term_cmd */
 269   w89k_cmds.setreg.cmd = "r %s %x\n";   /* setreg.cmd (name, value) */
 270   w89k_cmds.setreg.resp_delim = NULL;   /* setreg.resp_delim */
 271   w89k_cmds.setreg.term = NULL; /* setreg.term */
 272   w89k_cmds.setreg.term_cmd = NULL;     /* setreg.term_cmd */
 273   w89k_cmds.getreg.cmd = "r %s\n";      /* getreg.cmd (name) */
 274   w89k_cmds.getreg.resp_delim = "\r";   /* getreg.resp_delim */
 275   w89k_cmds.getreg.term = NULL; /* getreg.term */
 276   w89k_cmds.getreg.term_cmd = NULL;     /* getreg.term_cmd */
 277   w89k_cmds.dump_registers = "r\n";     /* dump_registers */
 278   w89k_cmds.register_pattern = "\\(\\w+\\)\\( +[0-9a-fA-F]+\\b\\)+";
 279   w89k_cmds.supply_register = w89k_supply_register;     /* supply_register */
 280   w89k_cmds.load_routine = w89k_load;   /* load routine */
 281   w89k_cmds.load = "u %x\n";    /* download command */
 282   w89k_cmds.loadresp = "\021";  /* load response (^Q) */
 283   w89k_cmds.prompt = "ROM>";    /* monitor command prompt */
 284   w89k_cmds.line_term = "\n";   /* end-of-line terminator */
 285   w89k_cmds.cmd_end = NULL;     /* optional command terminator */
 286   w89k_cmds.target = &w89k_ops; /* target operations */
 287   w89k_cmds.stopbits = SERIAL_1_STOPBITS;       /* number of stop bits */
 288   w89k_cmds.regnames = w89k_regnames;   /* register names */
 289   w89k_cmds.magic = MONITOR_OPS_MAGIC;  /* magic */
 290 }                               /* init_w89k_cmds */
 291
 292 static void
 293 w89k_open (char *args, int from_tty)
 294 {
 295   monitor_open (args, &w89k_cmds, from_tty);
 296 }
 297
 298 void
 299 _initialize_w89k (void)
 300 {
 301   init_w89k_cmds ();
 302   init_monitor_ops (&w89k_ops);
 303
 304   w89k_ops.to_shortname = "w89k";
 305   w89k_ops.to_longname = "WinBond's debug monitor for the W89k Eval board";
 306   w89k_ops.to_doc = "Debug on a WinBond W89K eval board.\n\
 307 Specify the serial device it is connected to (e.g. /dev/ttya).";
 308   w89k_ops.to_open = w89k_open;
 309
 310   add_target (&w89k_ops);
 311 }