1/* Remote debugging interface for EST-300 ICE, for GDB
2   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
3   Free Software Foundation, Inc.
4   Contributed by Cygnus Support.
5
6   Written by Steve Chamberlain for Cygnus Support.
7   Re-written by Stu Grossman of Cygnus Support
8
9   This file is part of GDB.
10
11   This program is free software; you can redistribute it and/or modify
12   it under the terms of the GNU General Public License as published by
13   the Free Software Foundation; either version 2 of the License, or
14   (at your option) any later version.
15
16   This program is distributed in the hope that it will be useful,
17   but WITHOUT ANY WARRANTY; without even the implied warranty of
18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19   GNU General Public License for more details.
20
21   You should have received a copy of the GNU General Public License
22   along with this program; if not, write to the Free Software
23   Foundation, Inc., 59 Temple Place - Suite 330,
24   Boston, MA 02111-1307, USA.  */
25
26#include "defs.h"
27#include "gdbcore.h"
28#include "target.h"
29#include "monitor.h"
30#include "serial.h"
31#include "regcache.h"
32
33#include "m68k-tdep.h"
34
35static void est_open (char *args, int from_tty);
36
37static void
38est_supply_register (char *regname, int regnamelen, char *val, int vallen)
39{
40  int regno;
41
42  if (regnamelen != 2)
43    return;
44
45  switch (regname[0])
46    {
47    case 'S':
48      if (regname[1] != 'R')
49	return;
50      regno = PS_REGNUM;
51      break;
52    case 'P':
53      if (regname[1] != 'C')
54	return;
55      regno = PC_REGNUM;
56      break;
57    case 'D':
58      if (regname[1] < '0' || regname[1] > '7')
59	return;
60      regno = regname[1] - '0' + M68K_D0_REGNUM;
61      break;
62    case 'A':
63      if (regname[1] < '0' || regname[1] > '7')
64	return;
65      regno = regname[1] - '0' + M68K_A0_REGNUM;
66      break;
67    default:
68      return;
69    }
70
71  monitor_supply_register (regno, val);
72}
73
74/*
75 * This array of registers needs to match the indexes used by GDB. The
76 * whole reason this exists is because the various ROM monitors use
77 * different names than GDB does, and don't support all the
78 * registers either. So, typing "info reg sp" becomes a "r30".
79 */
80
81static const char *
82est_regname (int index)
83{
84
85  static char *regnames[] =
86  {
87    "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
88    "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
89    "SR", "PC",
90  };
91
92
93  if ((index >= (sizeof (regnames) /  sizeof (regnames[0])))
94       || (index < 0) || (index >= NUM_REGS))
95    return NULL;
96  else
97    return regnames[index];
98}
99
100/*
101 * Define the monitor command strings. Since these are passed directly
102 * through to a printf style function, we need can include formatting
103 * strings. We also need a CR or LF on the end.
104 */
105
106static struct target_ops est_ops;
107
108static char *est_inits[] =
109{"he\r",			/* Resets the prompt, and clears repeated cmds */
110 NULL};
111
112static struct monitor_ops est_cmds;
113
114static void
115init_est_cmds (void)
116{
117  est_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_NEED_REGDUMP_AFTER_CONT |
118    MO_SREC_ACK | MO_SREC_ACK_PLUS;
119  est_cmds.init = est_inits;	/* Init strings */
120  est_cmds.cont = "go\r";	/* continue command */
121  est_cmds.step = "sidr\r";	/* single step */
122  est_cmds.stop = "\003";	/* ^C interrupts the program */
123  est_cmds.set_break = "sb %x\r";	/* set a breakpoint */
124  est_cmds.clr_break = "rb %x\r";	/* clear a breakpoint */
125  est_cmds.clr_all_break = "rb\r";	/* clear all breakpoints */
126  est_cmds.fill = "bfb %x %x %x\r";	/* fill (start end val) */
127  est_cmds.setmem.cmdb = "smb %x %x\r";		/* setmem.cmdb (addr, value) */
128  est_cmds.setmem.cmdw = "smw %x %x\r";		/* setmem.cmdw (addr, value) */
129  est_cmds.setmem.cmdl = "sml %x %x\r";		/* setmem.cmdl (addr, value) */
130  est_cmds.setmem.cmdll = NULL;	/* setmem.cmdll (addr, value) */
131  est_cmds.setmem.resp_delim = NULL;	/* setreg.resp_delim */
132  est_cmds.setmem.term = NULL;	/* setreg.term */
133  est_cmds.setmem.term_cmd = NULL;	/* setreg.term_cmd */
134  est_cmds.getmem.cmdb = "dmb %x %x\r";		/* getmem.cmdb (addr, len) */
135  est_cmds.getmem.cmdw = "dmw %x %x\r";		/* getmem.cmdw (addr, len) */
136  est_cmds.getmem.cmdl = "dml %x %x\r";		/* getmem.cmdl (addr, len) */
137  est_cmds.getmem.cmdll = NULL;	/* getmem.cmdll (addr, len) */
138  est_cmds.getmem.resp_delim = ": ";	/* getmem.resp_delim */
139  est_cmds.getmem.term = NULL;	/* getmem.term */
140  est_cmds.getmem.term_cmd = NULL;	/* getmem.term_cmd */
141  est_cmds.setreg.cmd = "sr %s %x\r";	/* setreg.cmd (name, value) */
142  est_cmds.setreg.resp_delim = NULL;	/* setreg.resp_delim */
143  est_cmds.setreg.term = NULL;	/* setreg.term */
144  est_cmds.setreg.term_cmd = NULL;	/* setreg.term_cmd */
145  est_cmds.getreg.cmd = "dr %s\r";	/* getreg.cmd (name) */
146  est_cmds.getreg.resp_delim = " = ";	/* getreg.resp_delim */
147  est_cmds.getreg.term = NULL;	/* getreg.term */
148  est_cmds.getreg.term_cmd = NULL;	/* getreg.term_cmd */
149  est_cmds.dump_registers = "dr\r";	/* dump_registers */
150  est_cmds.register_pattern = "\\(\\w+\\) = \\([0-9a-fA-F]+\\)";	/* register_pattern */
151  est_cmds.supply_register = est_supply_register;	/* supply_register */
152  est_cmds.load_routine = NULL;	/* load_routine (defaults to SRECs) */
153  est_cmds.load = "dl\r";	/* download command */
154  est_cmds.loadresp = "+";	/* load response */
155  est_cmds.prompt = ">BKM>";	/* monitor command prompt */
156  est_cmds.line_term = "\r";	/* end-of-line terminator */
157  est_cmds.cmd_end = NULL;	/* optional command terminator */
158  est_cmds.target = &est_ops;	/* target operations */
159  est_cmds.stopbits = SERIAL_1_STOPBITS;	/* number of stop bits */
160  est_cmds.regnames = NULL;
161  est_cmds.regname = est_regname; /*register names*/
162  est_cmds.magic = MONITOR_OPS_MAGIC;	/* magic */
163}				/* init_est_cmds */
164
165static void
166est_open (char *args, int from_tty)
167{
168  monitor_open (args, &est_cmds, from_tty);
169}
170
171extern initialize_file_ftype _initialize_est; /* -Wmissing-prototypes */
172
173void
174_initialize_est (void)
175{
176  init_est_cmds ();
177  init_monitor_ops (&est_ops);
178
179  est_ops.to_shortname = "est";
180  est_ops.to_longname = "EST background debug monitor";
181  est_ops.to_doc = "Debug via the EST BDM.\n\
182Specify the serial device it is connected to (e.g. /dev/ttya).";
183  est_ops.to_open = est_open;
184
185  add_target (&est_ops);
186}
187