From e5677ce9e523550f0de36d77b46461645a764cb3 Mon Sep 17 00:00:00 2001 From: Øyvind Harboe Date: Fri, 25 Feb 2011 14:09:39 +0100 Subject: svf: add nil option that just runs through the svf file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit useful for debugging without access to hardware to e.g. regression test, reproduce memory corruption problems, etc. Signed-off-by: Øyvind Harboe --- src/svf/svf.c | 67 +++++++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 49 insertions(+), 18 deletions(-) (limited to 'src/svf') diff --git a/src/svf/svf.c b/src/svf/svf.c index 53994a2d..6acf0325 100644 --- a/src/svf/svf.c +++ b/src/svf/svf.c @@ -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] [quiet] [progress]", + .usage = "svf [-tap device.tap] [quiet] [nil] [progress]", }, COMMAND_REGISTRATION_DONE }; -- cgit v1.2.3