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