#include "command.h"
#include "log.h"
-#include "interpreter.h"
#include "stdlib.h"
#include "string.h"
#include <unistd.h>
-
/* note that this is not marked as static as it must be available from outside jtag.c for those
that implement the jtag_xxx() minidriver layer
*/
char* jtag_event_strings[] =
{
- "JTAG controller reset(tms or TRST)"
+ "JTAG controller reset (TLR or TRST)"
};
/* kludge!!!! these are just global variables that the
jtag_event_callback_t *jtag_event_callbacks;
/* speed in kHz*/
-static int speed1 = 0, speed2 = 0;
+static int speed_khz = 0;
/* flag if the kHz speed was defined */
static int hasKHz = 0;
#if BUILD_PARPORT == 1
extern jtag_interface_t parport_interface;
#endif
-
+
+#if BUILD_DUMMY == 1
+ extern jtag_interface_t dummy_interface;
+#endif
+
#if BUILD_FT2232_FTD2XX == 1
extern jtag_interface_t ft2232_interface;
#endif
extern jtag_interface_t usbprog_interface;
#endif
+#if BUILD_JLINK == 1
+ extern jtag_interface_t jlink_interface;
+#endif
+
jtag_interface_t *jtag_interfaces[] = {
#if BUILD_ECOSBOARD == 1
&eCosBoard_interface,
#if BUILD_PARPORT == 1
&parport_interface,
#endif
+#if BUILD_DUMMY == 1
+ &dummy_interface,
+#endif
#if BUILD_FT2232_FTD2XX == 1
&ft2232_interface,
#endif
#endif
#if BUILD_USBPROG == 1
&usbprog_interface,
+#endif
+#if BUILD_JLINK == 1
+ &jlink_interface,
#endif
NULL,
};
/* configuration */
jtag_interface_t *jtag_interface = NULL;
int jtag_speed = 0;
-int jtag_speed_post_reset = 0;
+
/* forward declarations */
int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
{
cmd_queue_page_t **p_page = &cmd_queue_pages;
int offset;
+ u8 *t;
if (*p_page)
{
offset = (*p_page)->used;
(*p_page)->used += size;
- u8 *t=(u8 *)((*p_page)->address);
+ t=(u8 *)((*p_page)->address);
return t + offset;
}
void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
+ int retval;
+
jtag_prelude(state);
- int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
+ retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
+ int retval;
+
jtag_prelude(state);
- int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
+ retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
+ int retval;
+
jtag_prelude(state);
- int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
+ retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
bypass_devices++;
device = device->next;
}
+ if (bypass_devices >= jtag_num_devices)
+ {
+ LOG_ERROR("all devices in bypass");
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
int num_fields,
- int *num_bits,
- u32 *value,
+ const int *num_bits,
+ const u32 *value,
enum tap_state end_state)
{
int i;
}
}
-
-
-
void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
+ int retval;
+
jtag_prelude(state);
- int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
+ retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
void jtag_add_pathmove(int num_states, enum tap_state *path)
{
+ enum tap_state cur_state=cmd_queue_cur_state;
+ int i;
+ int retval;
+
/* the last state has to be a stable state */
if (tap_move_map[path[num_states - 1]] == -1)
{
exit(-1);
}
- enum tap_state cur_state=cmd_queue_cur_state;
- int i;
for (i=0; i<num_states; i++)
{
if ((tap_transitions[cur_state].low != path[i])&&
cmd_queue_cur_state = path[num_states - 1];
- int retval=interface_jtag_add_pathmove(num_states, path);
+ retval=interface_jtag_add_pathmove(num_states, path);
if (retval!=ERROR_OK)
jtag_error=retval;
}
-
int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
{
jtag_command_t **last_cmd = jtag_get_last_command_p();
void jtag_add_runtest(int num_cycles, enum tap_state state)
{
+ int retval;
+
jtag_prelude(state);
/* executed by sw or hw fifo */
- int retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
+ retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
int trst_with_tlr = 0;
int retval;
+ /* FIX!!! there are *many* different cases here. A better
+ * approach is needed for legal combinations of transitions...
+ */
+ if ((jtag_reset_config & RESET_HAS_SRST)&&
+ (jtag_reset_config & RESET_HAS_TRST)&&
+ ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
+ {
+ if (((req_tlr_or_trst&&!jtag_trst)||
+ (!req_tlr_or_trst&&jtag_trst))&&
+ ((req_srst&&!jtag_srst)||
+ (!req_srst&&jtag_srst)))
+ {
+ /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
+ //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
+ }
+ }
+
/* Make sure that jtag_reset_config allows the requested reset */
/* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
if (trst_with_tlr)
{
- LOG_DEBUG("JTAG reset with tms instead of TRST");
+ LOG_DEBUG("JTAG reset with TLR instead of TRST");
jtag_add_end_state(TAP_TLR);
jtag_add_tlr();
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
(*last_cmd)->cmd.reset->trst = req_trst;
(*last_cmd)->cmd.reset->srst = req_srst;
-
return ERROR_OK;
}
void jtag_add_sleep(u32 us)
{
+ keep_alive(); /* we might be running on a very slow JTAG clk */
int retval=interface_jtag_add_sleep(us);
if (retval!=ERROR_OK)
jtag_error=retval;
}
return bit_count;
-
}
int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
field->in_handler = jtag_check_value;
else
field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
- field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
+ field->in_handler_priv = NULL;
field->in_check_value = value;
field->in_check_mask = mask;
}
int MINIDRIVER(interface_jtag_execute_queue)(void)
{
int retval;
-
+
+ if (jtag==NULL)
+ {
+ LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
+ return ERROR_FAIL;
+ }
+
retval = jtag->execute_queue();
cmd_queue_free();
register_command(cmd_ctx, NULL, "interface", handle_interface_command,
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
- COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
+ COMMAND_ANY, "set jtag speed (if supported)");
register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
- register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
- COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
+ register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
int jtag_interface_init(struct command_context_s *cmd_ctx)
{
+ if (jtag)
+ return ERROR_OK;
+
if (!jtag_interface)
{
/* nothing was previously specified by "interface" command */
}
if(hasKHz)
{
- /*stay on "reset speed"*/
- if (jtag_interface->khz(speed1, &speed1) == ERROR_OK)
- jtag_speed = speed1;
- if (jtag_interface->khz(speed2, &speed2) == ERROR_OK)
- jtag_speed_post_reset = speed2;
+ jtag_interface->khz(speed_khz, &jtag_speed);
hasKHz = 0;
}
return ERROR_OK;
}
-int jtag_init(struct command_context_s *cmd_ctx)
+static int jtag_init_inner(struct command_context_s *cmd_ctx)
{
int validate_tries = 0;
jtag_device_t *device;
+ int retval;
- LOG_DEBUG("-");
+ LOG_DEBUG("Init JTAG chain");
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
device = jtag_devices;
jtag_ir_scan_size = 0;
jtag_num_devices = 0;
}
jtag_add_tlr();
- jtag_execute_queue();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
/* examine chain first, as this could discover the real chain layout */
if (jtag_examine_chain() != ERROR_OK)
return ERROR_OK;
}
+int jtag_init_reset(struct command_context_s *cmd_ctx)
+{
+ int retval;
+
+ if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
+ return retval;
+
+ LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / TLR");
+
+ /* Reset can happen after a power cycle.
+ *
+ * Ideally we would only assert TRST or run TLR before the target reset.
+ *
+ * However w/srst_pulls_trst, trst is asserted together with the target
+ * reset whether we want it or not.
+ *
+ * NB! Some targets have JTAG circuitry disabled until a
+ * trst & srst has been asserted.
+ *
+ * NB! here we assume nsrst/ntrst delay are sufficient!
+ *
+ * NB! order matters!!!! srst *can* disconnect JTAG circuitry
+ *
+ */
+ jtag_add_reset(1, 0); /* TLR or TRST */
+ if (jtag_reset_config & RESET_HAS_SRST)
+ {
+ jtag_add_reset(1, 1);
+ if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
+ jtag_add_reset(0, 1);
+ }
+ jtag_add_reset(0, 0);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ return retval;
+
+ /* Check that we can communication on the JTAG chain + eventually we want to
+ * be able to perform enumeration only after OpenOCD has started
+ * telnet and GDB server
+ *
+ * That would allow users to more easily perform any magic they need to before
+ * reset happens.
+ */
+ return jtag_init_inner(cmd_ctx);
+}
+
+int jtag_init(struct command_context_s *cmd_ctx)
+{
+ int retval;
+ if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
+ return retval;
+ if (jtag_init_inner(cmd_ctx)==ERROR_OK)
+ {
+ return ERROR_OK;
+ }
+ return jtag_init_reset(cmd_ctx);
+}
static int default_khz(int khz, int *jtag_speed)
{
return ERROR_FAIL;
}
+static int default_speed_div(int speed, int *khz)
+{
+ return ERROR_FAIL;
+}
+
int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int i;
{
jtag_interface->khz = default_khz;
}
+ if (jtag_interface->speed_div == NULL)
+ {
+ jtag_interface->speed_div = default_speed_div;
+ }
return ERROR_OK;
}
}
int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- int cur_speed = 0;
+ int retval=ERROR_OK;
- if (argc != 0)
+ if (argc == 1)
{
- if ((argc<1) || (argc>2))
- return ERROR_COMMAND_SYNTAX_ERROR;
-
LOG_DEBUG("handle jtag speed");
-
- if (argc >= 1)
- cur_speed = jtag_speed = jtag_speed_post_reset = strtoul(args[0], NULL, 0);
- if (argc == 2)
- cur_speed = jtag_speed_post_reset = strtoul(args[1], NULL, 0);
+
+ int cur_speed = 0;
+ cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
/* this command can be called during CONFIG,
* in which case jtag isn't initialized */
if (jtag)
- jtag->speed(cur_speed);
- }
- command_print(cmd_ctx, "jtag_speed: %d, %d", jtag_speed, jtag_speed_post_reset);
+ {
+ retval=jtag->speed(cur_speed);
+ }
+ } else if (argc == 0)
+ {
+ } else
+ {
+ retval=ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
- return ERROR_OK;
+ return retval;
}
int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
+ int retval=ERROR_OK;
LOG_DEBUG("handle jtag khz");
- if ((argc<1) || (argc>2))
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (argc >= 1)
- speed1 = speed2 = strtoul(args[0], NULL, 0);
- if (argc == 2)
- speed2 = strtoul(args[1], NULL, 0);
-
- if (jtag != NULL)
+ if(argc == 1)
+ {
+ speed_khz = strtoul(args[0], NULL, 0);
+ if (jtag != NULL)
+ {
+ int cur_speed = 0;
+ LOG_DEBUG("have interface set up");
+ int speed_div1;
+ if ((retval=jtag->khz(speed_khz, &speed_div1))!=ERROR_OK)
+ {
+ speed_khz = 0;
+ return retval;
+ }
+
+ cur_speed = jtag_speed = speed_div1;
+
+ retval=jtag->speed(cur_speed);
+ } else
+ {
+ hasKHz = 1;
+ }
+ } else if (argc==0)
{
- int cur_speed = 0;
- LOG_DEBUG("have interface set up");
- int speed_div1, speed_div2;
- if (jtag->khz(speed1, &speed_div1)!=ERROR_OK)
- return ERROR_OK;
- if (jtag->khz(speed2, &speed_div2)!=ERROR_OK)
- return ERROR_OK;
-
- if (argc >= 1)
- cur_speed = jtag_speed = jtag_speed_post_reset = speed_div1;
- if (argc == 2)
- cur_speed = jtag_speed_post_reset = speed_div2;
-
- jtag->speed(cur_speed);
} else
{
- hasKHz = 1;
+ retval=ERROR_COMMAND_SYNTAX_ERROR;
}
-
- return ERROR_OK;
-}
+ command_print(cmd_ctx, "jtag_khz: %d", speed_khz);
+ return retval;
+}
int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
+ if (jtag_interface_init(cmd_ctx) != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;
jtag_add_reset(trst, srst);
}
-
int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int i;
return ERROR_OK;
}
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
{
+ int retval;
scan_field_t *fields;
- int num_fields = 0;
+ int num_fields;
int field_count = 0;
- var_t *var;
- int i, j;
-
- if ((argc < 2) || (argc % 2))
+ int i, e;
+ long device;
+
+ /* args[1] = device
+ * args[2] = num_bits
+ * args[3] = hex string
+ * ... repeat num bits and hex string ...
+ */
+ if ((argc < 4) || ((argc % 2)!=0))
{
- return ERROR_COMMAND_SYNTAX_ERROR;
+ Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
+ return JIM_ERR;
}
- for (i = 0; i < argc; i+=2)
+ for (i = 2; i < argc; i+=2)
{
- var = get_var_by_namenum(args[i+1]);
- if (var)
- {
- num_fields += var->num_fields;
- }
- else
- {
- command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
- return ERROR_OK;
- }
+ long bits;
+
+ e = Jim_GetLong(interp, args[i], &bits);
+ if (e != JIM_OK)
+ return e;
}
- fields = malloc(sizeof(scan_field_t) * num_fields);
+ e = Jim_GetLong(interp, args[1], &device);
+ if (e != JIM_OK)
+ return e;
- for (i = 0; i < argc; i+=2)
+ num_fields=(argc-2)/2;
+ fields = malloc(sizeof(scan_field_t) * num_fields);
+ for (i = 2; i < argc; i+=2)
{
- var = get_var_by_namenum(args[i+1]);
-
- for (j = 0; j < var->num_fields; j++)
- {
- fields[field_count].device = strtol(args[i], NULL, 0);
- fields[field_count].num_bits = var->fields[j].num_bits;
- fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
- buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
- fields[field_count].out_mask = NULL;
- fields[field_count].in_value = fields[field_count].out_value;
- fields[field_count].in_check_mask = NULL;
- fields[field_count].in_check_value = NULL;
- fields[field_count].in_handler = field_le_to_host;
- fields[field_count++].in_handler_priv = &(var->fields[j]);
- }
+ long bits;
+ int len;
+ const char *str;
+
+ Jim_GetLong(interp, args[i], &bits);
+ str = Jim_GetString(args[i+1], &len);
+
+ fields[field_count].device = device;
+ fields[field_count].num_bits = bits;
+ fields[field_count].out_value = malloc(CEIL(bits, 8));
+ str_to_buf(str, len, fields[field_count].out_value, bits, 0);
+ fields[field_count].out_mask = NULL;
+ fields[field_count].in_value = fields[field_count].out_value;
+ fields[field_count].in_check_mask = NULL;
+ fields[field_count].in_check_value = NULL;
+ fields[field_count].in_handler = NULL;
+ fields[field_count++].in_handler_priv = NULL;
}
jtag_add_dr_scan(num_fields, fields, -1);
- jtag_execute_queue();
-
- for (i = 0; i < argc / 2; i++)
- free(fields[i].out_value);
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ {
+ Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
+ Jim_AppendStrings(interp, Jim_GetResult(interp), "drscan: jtag execute failed", NULL);
+ return JIM_ERR;
+ }
+
+ field_count=0;
+ Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
+ for (i = 2; i < argc; i+=2)
+ {
+ long bits;
+ char *str;
+
+ Jim_GetLong(interp, args[i], &bits);
+ str = buf_to_str(fields[field_count].in_value, bits, 16);
+ free(fields[field_count].out_value);
+ Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
+ free(str);
+ field_count++;
+ }
+
+ Jim_SetResult(interp, list);
+
free(fields);
- return ERROR_OK;
+ return JIM_OK;
}
int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
Code Review / openocd.git / blobdiff