415 lines
8.6 KiB
C
415 lines
8.6 KiB
C
/* MSPDebug - debugging tool for MSP430 MCUs
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* Copyright (C) 2009, 2010 Daniel Beer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <getopt.h>
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#include "dis.h"
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#include "device.h"
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#include "binfile.h"
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#include "stab.h"
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#include "util.h"
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#include "gdb.h"
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#include "rtools.h"
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#include "sym.h"
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#include "devcmd.h"
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#include "expr.h"
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#include "sim.h"
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#include "bsl.h"
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#include "fet.h"
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#include "vector.h"
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#include "fet_db.h"
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#include "uif.h"
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#include "rf2500.h"
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static void io_prefix(stab_t stab,
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const char *prefix, uint16_t pc,
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uint16_t addr, int is_byte)
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{
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char name[64];
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if (!stab_nearest(stab, pc, name, sizeof(name), &pc)) {
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printf("%s", name);
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if (pc)
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printf("+0x%x", pc);
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} else {
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printf("0x%04x", pc);
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}
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printf(": IO %s.%c: 0x%04x", prefix, is_byte ? 'B' : 'W', addr);
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if (!stab_nearest(stab, addr, name, sizeof(name), &addr)) {
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printf(" (%s", name);
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if (addr)
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printf("+0x%x", addr);
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printf(")");
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}
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}
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static int fetch_io(void *user_data, uint16_t pc,
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uint16_t addr, int is_byte, uint16_t *data_ret)
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{
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stab_t stab = (stab_t)user_data;
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io_prefix(stab, "READ", pc, addr, is_byte);
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for (;;) {
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char text[128];
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int len;
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int data;
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printf("? ");
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fflush(stdout);
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if (!fgets(text, sizeof(text), stdin)) {
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printf("\nAborted IO request\n");
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return -1;
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}
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len = strlen(text);
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while (len && isspace(text[len - 1]))
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len--;
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text[len] = 0;
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if (!len)
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return 0;
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if (!expr_eval(stab, text, &data)) {
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if (data_ret)
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*data_ret = data;
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return 0;
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}
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}
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return 0;
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}
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static void store_io(void *user_data, uint16_t pc,
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uint16_t addr, int is_byte, uint16_t data)
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{
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stab_t stab = (stab_t)user_data;
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io_prefix(stab, "WRITE", pc, addr, is_byte);
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if (is_byte)
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printf(" => 0x%02x\n", data & 0xff);
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else
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printf(" => 0x%04x\n", data);
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}
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static void usage(const char *progname)
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{
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fprintf(stderr,
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"Usage: %s [options] -R [-v voltage] [command ...]\n"
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" %s [options] -u <device> [-j] [-v voltage] [command ...]\n"
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" %s [options] -B <device> [command ...]\n"
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" %s [options] -s [command ...]\n"
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"\n"
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" -R\n"
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" Open the first available RF2500 device on the USB bus.\n"
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" -u device\n"
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" Open the given tty device (MSP430 UIF compatible devices).\n"
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" -j\n"
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" Use JTAG, rather than spy-bi-wire (UIF devices only).\n"
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" -v voltage\n"
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" Set the supply voltage, in millivolts.\n"
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" -B device\n"
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" Debug the FET itself through the bootloader.\n"
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" -s\n"
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" Start in simulation mode.\n"
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" -n\n"
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" Do not read ~/.mspdebug on startup.\n"
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" --help\n"
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" Show this help text.\n"
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" --fet-list\n"
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" Show a list of devices supported by the FET driver.\n"
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" --fet-force-id string\n"
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" Override the device ID returned by the FET.\n"
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"\n"
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"By default, the first RF2500 device on the USB bus is opened.\n"
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"\n"
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"If commands are given, they will be executed. Otherwise, an interactive\n"
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"command reader is started.\n",
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progname, progname, progname, progname);
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}
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static void process_rc_file(cproc_t cp)
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{
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const char *home = getenv("HOME");
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char text[256];
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if (!home)
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return;
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snprintf(text, sizeof(text), "%s/.mspdebug", home);
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if (!access(text, F_OK))
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cproc_process_file(cp, text);
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}
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#define MODE_RF2500 0x01
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#define MODE_UIF 0x02
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#define MODE_UIF_BSL 0x04
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#define MODE_SIM 0x08
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struct cmdline_args {
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const char *uif_device;
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const char *bsl_device;
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const char *fet_force_id;
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int mode;
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int want_jtag;
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int no_rc;
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int vcc_mv;
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};
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static int add_fet_device(void *user_data, const struct fet_db_record *r)
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{
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struct vector *v = (struct vector *)user_data;
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return vector_push(v, &r->name, 1);
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}
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static int cmp_char_ptr(const void *a, const void *b)
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{
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return strcmp(*(const char **)a, *(const char **)b);
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}
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static int list_devices(void)
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{
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struct vector v;
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int i;
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vector_init(&v, sizeof(const char *));
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if (fet_db_enum(add_fet_device, &v) < 0) {
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perror("couldn't allocate memory");
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vector_destroy(&v);
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return -1;
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}
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qsort(v.ptr, v.size, v.elemsize, cmp_char_ptr);
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printf("Devices supported by FET driver:\n");
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for (i = 0; i < v.size; i++)
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printf(" %s\n", VECTOR_AT(v, i, const char *));
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vector_destroy(&v);
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return 0;
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}
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static int parse_cmdline_args(int argc, char **argv,
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struct cmdline_args *args)
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{
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int opt;
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const static struct option longopts[] = {
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{"help", 0, 0, 'H'},
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{"fet-list", 0, 0, 'L'},
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{"fet-force-id", 1, 0, 'F'},
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{NULL, 0, 0, 0}
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};
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while ((opt = getopt_long(argc, argv, "u:jv:B:sR?n",
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longopts, NULL)) >= 0)
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switch (opt) {
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case 'L':
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exit(list_devices());
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case 'F':
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args->fet_force_id = optarg;
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break;
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case 'H':
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usage(argv[0]);
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exit(0);
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case 'R':
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args->mode |= MODE_RF2500;
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break;
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case 'u':
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args->uif_device = optarg;
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args->mode |= MODE_UIF;
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break;
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case 'v':
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args->vcc_mv = atoi(optarg);
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break;
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case 'j':
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args->want_jtag = 1;
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break;
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case 'B':
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args->bsl_device = optarg;
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args->mode |= MODE_UIF_BSL;
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break;
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case 's':
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args->mode |= MODE_SIM;
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break;
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case 'n':
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args->no_rc = 1;
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break;
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case '?':
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return -1;
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default:
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fprintf(stderr, "Invalid argument: %c\n"
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"Try --help for help.\n", opt);
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return -1;
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}
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/* Check for incompatible arguments */
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if (args->mode & (args->mode - 1)) {
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fprintf(stderr, "Multiple incompatible options specified.\n"
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"Try --help for help.\n");
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return -1;
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}
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if (!args->mode) {
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fprintf(stderr, "You need to specify an operating mode.\n"
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"Try --help for help.\n");
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return -1;
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}
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return 0;
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}
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device_t setup_device(const struct cmdline_args *args,
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stab_t stab)
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{
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device_t msp430_dev = NULL;
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transport_t trans = NULL;
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/* Open a device */
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if (args->mode == MODE_SIM) {
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msp430_dev = sim_open(fetch_io, store_io, stab);
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} else if (args->mode == MODE_UIF_BSL) {
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msp430_dev = bsl_open(args->bsl_device);
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} else if (args->mode == MODE_RF2500 || args->mode == MODE_UIF) {
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int flags = 0;
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/* Open the appropriate transport */
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if (args->mode == MODE_UIF) {
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trans = uif_open(args->uif_device);
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} else {
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trans = rf2500_open();
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flags |= FET_PROTO_RF2500;
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}
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if (!trans)
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return NULL;
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/* Then initialize the device */
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if (!args->want_jtag)
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flags |= FET_PROTO_SPYBIWIRE;
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msp430_dev = fet_open(trans, flags, args->vcc_mv,
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args->fet_force_id);
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}
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if (!msp430_dev) {
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if (trans)
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trans->destroy(trans);
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return NULL;
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}
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return msp430_dev;
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}
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cproc_t setup_cproc(const struct cmdline_args *args)
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{
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device_t msp430_dev;
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stab_t stab;
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cproc_t cp;
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stab = stab_new();
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if (!stab)
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return NULL;
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msp430_dev = setup_device(args, stab);
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if (!msp430_dev) {
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stab_destroy(stab);
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return NULL;
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}
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cp = cproc_new(msp430_dev, stab);
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if (!cp) {
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msp430_dev->destroy(msp430_dev);
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stab_destroy(stab);
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return NULL;
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}
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if (sym_register(cp) < 0 ||
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devcmd_register(cp) < 0 ||
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gdb_register(cp) < 0 ||
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rtools_register(cp) < 0) {
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cproc_destroy(cp);
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return NULL;
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}
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return cp;
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}
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int main(int argc, char **argv)
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{
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struct cmdline_args args = {0};
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cproc_t cp;
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int ret = 0;
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puts(
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"MSPDebug version 0.7 - debugging tool for MSP430 MCUs\n"
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"Copyright (C) 2009, 2010 Daniel Beer <daniel@tortek.co.nz>\n"
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"This is free software; see the source for copying conditions. There is NO\n"
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"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
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args.vcc_mv = 3000;
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if (parse_cmdline_args(argc, argv, &args) < 0)
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return -1;
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ctrlc_init();
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cp = setup_cproc(&args);
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if (!cp)
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return -1;
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if (!args.no_rc)
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process_rc_file(cp);
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/* Process commands */
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if (optind < argc) {
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while (optind < argc) {
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if (cproc_process_command(cp, argv[optind++]) < 0) {
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ret = -1;
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break;
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}
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}
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} else {
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cproc_reader_loop(cp);
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}
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cproc_destroy(cp);
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return ret;
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}
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