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svf: add nil option that just runs through the svf file 

useful for debugging without access to hardware to e.g.
regression test, reproduce memory corruption problems,
etc.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Øyvind Harboe 2011-02-25 14:09:39 +01:00
parent 95de667e24
commit e5677ce9e5
1 changed files with 49 additions and 18 deletions
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67
src/svf/svf.c
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@ -223,6 +223,7 @@ static int svf_getline (char **lineptr, size_t *n, FILE *stream);
static uint8_t *svf_tdi_buffer = NULL, *svf_tdo_buffer = NULL, *svf_mask_buffer = NULL;
static int svf_buffer_index = 0, svf_buffer_size = 0;
static int svf_quiet = 0;
static int svf_nil = 0;
// Targetting particular tap
static int svf_tap_is_specified = 0;
@ -288,6 +289,9 @@ int svf_add_statemove(tap_state_t state_to)
/* when resetting, be paranoid and ignore current state */
if (state_to == TAP_RESET) {
if (svf_nil)
return ERROR_OK;
jtag_add_tlr();
return ERROR_OK;
}
@ -297,6 +301,10 @@ int svf_add_statemove(tap_state_t state_to)
if ((svf_statemoves[index_var].from == state_from)
&& (svf_statemoves[index_var].to == state_to))
{
if (svf_nil)
{
continue;
}
/* recorded path includes current state ... avoid extra TCKs! */
if (svf_statemoves[index_var].num_of_moves > 1)
jtag_add_pathmove(svf_statemoves[index_var].num_of_moves - 1,
@ -333,6 +341,7 @@ COMMAND_HANDLER(handle_svf_command)
// parse command line
svf_quiet = 0;
svf_nil = 0;
for (unsigned int i = 0; i < CMD_ARGC; i++)
{
if (strcmp(CMD_ARGV[i], "-tap") == 0)
@ -349,6 +358,10 @@ COMMAND_HANDLER(handle_svf_command)
{
svf_quiet = 1;
}
else if ((strcmp(CMD_ARGV[i], "nil") == 0) || (strcmp(CMD_ARGV[i], "-nil") == 0))
{
svf_nil = 1;
}
else if ((strcmp(CMD_ARGV[i], "progress") == 0) || (strcmp(CMD_ARGV[i], "-progress") == 0))
{
svf_progress_enabled = 1;
@ -417,8 +430,11 @@ COMMAND_HANDLER(handle_svf_command)
memcpy(&svf_para, &svf_para_init, sizeof(svf_para));
// TAP_RESET
jtag_add_tlr();
if (!svf_nil)
{
// TAP_RESET
jtag_add_tlr();
}
if (tap)
{
@ -519,7 +535,8 @@ COMMAND_HANDLER(handle_svf_command)
}
command_num++;
}
if (ERROR_OK != jtag_execute_queue())
if ((!svf_nil) && (ERROR_OK != jtag_execute_queue()))
{
ret = ERROR_FAIL;
}
@ -956,7 +973,7 @@ static int svf_add_check_para(uint8_t enabled, int buffer_offset, int bit_len)
static int svf_execute_tap(void)
{
if (ERROR_OK != jtag_execute_queue())
if ((!svf_nil) && (ERROR_OK != jtag_execute_queue()))
{
return ERROR_FAIL;
}
@ -1284,8 +1301,11 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
field.num_bits = i;
field.out_value = &svf_tdi_buffer[svf_buffer_index];
field.in_value = &svf_tdi_buffer[svf_buffer_index];
/* NOTE: doesn't use SVF-specified state paths */
jtag_add_plain_dr_scan(field.num_bits, field.out_value, field.in_value, svf_para.dr_end_state);
if (!svf_nil)
{
/* NOTE: doesn't use SVF-specified state paths */
jtag_add_plain_dr_scan(field.num_bits, field.out_value, field.in_value, svf_para.dr_end_state);
}
svf_buffer_index += (i + 7) >> 3;
}
@ -1379,9 +1399,12 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
field.num_bits = i;
field.out_value = &svf_tdi_buffer[svf_buffer_index];
field.in_value = &svf_tdi_buffer[svf_buffer_index];
/* NOTE: doesn't use SVF-specified state paths */
jtag_add_plain_ir_scan(field.num_bits, field.out_value, field.in_value,
svf_para.ir_end_state);
if (!svf_nil)
{
/* NOTE: doesn't use SVF-specified state paths */
jtag_add_plain_ir_scan(field.num_bits, field.out_value, field.in_value,
svf_para.ir_end_state);
}
svf_buffer_index += (i + 7) >> 3;
}
@ -1495,11 +1518,13 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
// add clocks and/or min wait
if (run_count > 0) {
jtag_add_clocks(run_count);
if (!svf_nil)
jtag_add_clocks(run_count);
}
if (min_usec > 0) {
jtag_add_sleep(min_usec);
if (!svf_nil)
jtag_add_sleep(min_usec);
}
// move to end_state if necessary
@ -1515,7 +1540,8 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
return ERROR_FAIL;
}
jtag_add_runtest(run_count, svf_para.runtest_end_state);
if (!svf_nil)
jtag_add_runtest(run_count, svf_para.runtest_end_state);
#endif
}
else
@ -1558,9 +1584,11 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
/* FIXME last state MUST be stable! */
if (i > 0)
{
jtag_add_pathmove(i, path);
if (!svf_nil)
jtag_add_pathmove(i, path);
}
jtag_add_tlr();
if (!svf_nil)
jtag_add_tlr();
num_of_argu -= i + 1;
i = -1;
}
@ -1571,7 +1599,8 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
if (svf_tap_state_is_stable(path[num_of_argu - 1]))
{
// last state MUST be stable state
jtag_add_pathmove(num_of_argu, path);
if (!svf_nil)
jtag_add_pathmove(num_of_argu, path);
LOG_DEBUG("\tmove to %s by path_move",
tap_state_name(path[num_of_argu - 1]));
}
@ -1626,11 +1655,13 @@ static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
switch (i_tmp)
{
case TRST_ON:
jtag_add_reset(1, 0);
if (!svf_nil)
jtag_add_reset(1, 0);
break;
case TRST_Z:
case TRST_OFF:
jtag_add_reset(0, 0);
if (!svf_nil)
jtag_add_reset(0, 0);
break;
case TRST_ABSENT:
break;
@ -1705,7 +1736,7 @@ static const struct command_registration svf_command_handlers[] = {
.handler = handle_svf_command,
.mode = COMMAND_EXEC,
.help = "Runs a SVF file.",
.usage = "svf [-tap device.tap] <file> [quiet] [progress]",
.usage = "svf [-tap device.tap] <file> [quiet] [nil] [progress]",
},
COMMAND_REGISTRATION_DONE
};