#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
+/* 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
*/
-int jtag_error=ERROR_OK;
+int jtag_error=ERROR_OK;
char* tap_state_strings[16] =
{
- "tlr",
+ "tlr",
"sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
"rti",
"sis", "ci", "si", "e1i", "pi", "e2i", "ui"
* 3: Pause-DR
* 4: Shift-IR
* 5: Pause-IR
- *
+ *
* SD->SD and SI->SI have to be caught in interface specific code
*/
u8 tap_move[6][6] =
tap_transition_t tap_transitions[16] =
{
- {TAP_TLR, TAP_RTI}, /* TLR */
- {TAP_SIS, TAP_CD}, /* SDS */
- {TAP_E1D, TAP_SD}, /* CD */
- {TAP_E1D, TAP_SD}, /* SD */
- {TAP_UD, TAP_PD}, /* E1D */
- {TAP_E2D, TAP_PD}, /* PD */
- {TAP_UD, TAP_SD}, /* E2D */
- {TAP_SDS, TAP_RTI}, /* UD */
- {TAP_SDS, TAP_RTI}, /* RTI */
- {TAP_TLR, TAP_CI}, /* SIS */
- {TAP_E1I, TAP_SI}, /* CI */
- {TAP_E1I, TAP_SI}, /* SI */
- {TAP_UI, TAP_PI}, /* E1I */
- {TAP_E2I, TAP_PI}, /* PI */
- {TAP_UI, TAP_SI}, /* E2I */
- {TAP_SDS, TAP_RTI} /* UI */
+ {TAP_RESET, TAP_IDLE}, /* TLR */
+ {TAP_IRSELECT, TAP_DRCAPTURE}, /* SDS */
+ {TAP_DREXIT1, TAP_DRSHIFT}, /* CD */
+ {TAP_DREXIT1, TAP_DRSHIFT}, /* SD */
+ {TAP_DRUPDATE, TAP_DRPAUSE}, /* E1D */
+ {TAP_DREXIT2, TAP_DRPAUSE}, /* PD */
+ {TAP_DRUPDATE, TAP_DRSHIFT}, /* E2D */
+ {TAP_DRSELECT, TAP_IDLE}, /* UD */
+ {TAP_DRSELECT, TAP_IDLE}, /* RTI */
+ {TAP_RESET, TAP_IRCAPTURE}, /* SIS */
+ {TAP_IREXIT1, TAP_IRSHIFT}, /* CI */
+ {TAP_IREXIT1, TAP_IRSHIFT}, /* SI */
+ {TAP_IRUPDATE, TAP_IRPAUSE}, /* E1I */
+ {TAP_IREXIT2, TAP_IRPAUSE}, /* PI */
+ {TAP_IRUPDATE, TAP_IRSHIFT}, /* E2I */
+ {TAP_DRSELECT, TAP_IDLE} /* UI */
};
char* jtag_event_strings[] =
* inside the drivers, but we don't want to break
* linking the drivers!!!!
*/
-enum tap_state end_state = TAP_TLR;
-enum tap_state cur_state = TAP_TLR;
+enum tap_state end_state = TAP_RESET;
+enum tap_state cur_state = TAP_RESET;
int jtag_trst = 0;
int jtag_srst = 0;
jtag_command_t *jtag_command_queue = NULL;
jtag_command_t **last_comand_pointer = &jtag_command_queue;
-jtag_device_t *jtag_devices = NULL;
-int jtag_num_devices = 0;
-int jtag_ir_scan_size = 0;
+static jtag_tap_t *jtag_all_taps = NULL;
+
enum reset_types jtag_reset_config = RESET_NONE;
-enum tap_state cmd_queue_end_state = TAP_TLR;
-enum tap_state cmd_queue_cur_state = TAP_TLR;
+enum tap_state cmd_queue_end_state = TAP_RESET;
+enum tap_state cmd_queue_cur_state = TAP_RESET;
int jtag_verify_capture_ir = 1;
/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
int jtag_nsrst_delay = 0; /* default to no nSRST delay */
-int jtag_ntrst_delay = 0; /* default to no nTRST delay */
+int jtag_ntrst_delay = 0; /* default to no nTRST delay */
/* maximum number of JTAG devices expected in the chain
*/
-#define JTAG_MAX_CHAIN_SIZE 20
+#define JTAG_MAX_CHAIN_SIZE 20
/* callbacks to inform high-level handlers about JTAG state changes */
jtag_event_callback_t *jtag_event_callbacks;
/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
*/
-
+
#if BUILD_ECOSBOARD == 1
- extern jtag_interface_t eCosBoard_interface;
+ extern jtag_interface_t zy1000_interface;
#endif
-
+
#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
jtag_interface_t *jtag_interfaces[] = {
#if BUILD_ECOSBOARD == 1
- &eCosBoard_interface,
+ &zy1000_interface,
#endif
#if BUILD_PARPORT == 1
&parport_interface,
int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+jtag_tap_t *jtag_AllTaps(void)
+{
+ return jtag_all_taps;
+};
+
+int
+jtag_NumTotalTaps(void)
+{
+ jtag_tap_t *t;
+ int n;
+
+ n = 0;
+ t = jtag_AllTaps();
+ while(t){
+ n++;
+ t = t->next_tap;
+ }
+ return n;
+}
+
+int
+jtag_NumEnabledTaps(void)
+{
+ jtag_tap_t *t;
+ int n;
+
+ n = 0;
+ t = jtag_AllTaps();
+ while(t){
+ if( t->enabled ){
+ n++;
+ }
+ t = t->next_tap;
+ }
+ return n;
+}
+
+
+jtag_tap_t *jtag_TapByString( const char *s )
+{
+ jtag_tap_t *t;
+ char *cp;
+
+ t = jtag_AllTaps();
+ // try name first
+ while(t){
+ if( 0 == strcmp( t->dotted_name, s ) ){
+ break;
+ } else {
+ t = t->next_tap;
+ }
+ }
+ // backup plan is by number
+ if( t == NULL ){
+ /* ok - is "s" a number? */
+ int n;
+ n = strtol( s, &cp, 0 );
+ if( (s != cp) && (*cp == 0) ){
+ /* Then it is... */
+ t = jtag_TapByAbsPosition(n);
+ }
+ }
+ return t;
+}
+
+jtag_tap_t *
+jtag_TapByJimObj( Jim_Interp *interp, Jim_Obj *o )
+{
+ jtag_tap_t *t;
+ const char *cp;
+
+ cp = Jim_GetString( o, NULL );
+ if(cp == NULL){
+ cp = "(unknown)";
+ t = NULL;
+ } else {
+ t = jtag_TapByString( cp );
+ }
+ if( t == NULL ){
+ Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
+ }
+ return t;
+}
+
+/* returns a pointer to the n-th device in the scan chain */
+jtag_tap_t *
+jtag_TapByAbsPosition( int n )
+{
+ int orig_n;
+ jtag_tap_t *t;
+
+ orig_n = n;
+ t = jtag_AllTaps();
+
+ while( t && (n > 0)) {
+ n--;
+ t = t->next_tap;
+ }
+ return t;
+}
+
+
int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
{
jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
-
+
if (callback == NULL)
{
return ERROR_INVALID_ARGUMENTS;
}
-
+
if (*callbacks_p)
{
while ((*callbacks_p)->next)
callbacks_p = &((*callbacks_p)->next);
callbacks_p = &((*callbacks_p)->next);
}
-
+
(*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
(*callbacks_p)->callback = callback;
(*callbacks_p)->priv = priv;
(*callbacks_p)->next = NULL;
-
+
return ERROR_OK;
}
int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
{
jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
-
+
if (callback == NULL)
{
return ERROR_INVALID_ARGUMENTS;
}
-
+
while (*callbacks_p)
{
jtag_event_callback_t **next = &((*callbacks_p)->next);
}
callbacks_p = next;
}
-
+
return ERROR_OK;
}
int jtag_call_event_callbacks(enum jtag_event event)
{
jtag_event_callback_t *callback = jtag_event_callbacks;
-
+
LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
-
+
while (callback)
{
callback->callback(event, callback->priv);
callback = callback->next;
}
-
+
return ERROR_OK;
}
jtag_command_t** jtag_get_last_command_p(void)
{
/* jtag_command_t *cmd = jtag_command_queue;
-
+
if (cmd)
while (cmd->next)
cmd = cmd->next;
else
return &jtag_command_queue;
-
+
return &cmd->next;*/
-
+
return last_comand_pointer;
}
-/* returns a pointer to the n-th device in the scan chain */
-jtag_device_t* jtag_get_device(int num)
-{
- jtag_device_t *device = jtag_devices;
- int i = 0;
-
- while (device)
- {
- if (num == i)
- return device;
- device = device->next;
- i++;
- }
-
- LOG_ERROR("jtag device number %d not defined", num);
- exit(-1);
-}
void* cmd_queue_alloc(size_t size)
{
int offset;
u8 *t;
+ /*
+ * WARNING:
+ * We align/round the *SIZE* per below
+ * so that all pointers returned by
+ * this function are reasonably well
+ * aligned.
+ *
+ * If we did not, then an "odd-length" request would cause the
+ * *next* allocation to be at an *odd* address, and because
+ * this function has the same type of api as malloc() - we
+ * must also return pointers that have the same type of
+ * alignment.
+ *
+ * What I do not/have is a reasonable portable means
+ * to align by...
+ *
+ * The solution here, is based on these suggestions.
+ * http://gcc.gnu.org/ml/gcc-help/2008-12/msg00041.html
+ *
+ */
+ union worse_case_align {
+ int i;
+ long l;
+ float f;
+ void *v;
+ };
+#define ALIGN_SIZE (sizeof(union worse_case_align))
+
+ // The alignment process.
+ size = (size + ALIGN_SIZE -1) & (~(ALIGN_SIZE-1));
+ // Done...
+
+
if (*p_page)
{
while ((*p_page)->next)
offset = (*p_page)->used;
(*p_page)->used += size;
-
+
t=(u8 *)((*p_page)->address);
return t + offset;
}
return;
}
- if (cmd_queue_end_state == TAP_TLR)
+ if (cmd_queue_end_state == TAP_RESET)
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
}
static void jtag_prelude(enum tap_state state)
{
jtag_prelude1();
-
+
if (state != -1)
jtag_add_end_state(state);
void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
int retval;
-
+
jtag_prelude(state);
-
+
retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
}
int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
-{
+{
jtag_command_t **last_cmd;
- jtag_device_t *device;
- int i, j;
+ jtag_tap_t *tap;
+ int j;
+ int x;
+ int nth_tap;
int scan_size = 0;
last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
(*last_cmd)->next = NULL;
/* allocate memory for ir scan command */
(*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
(*last_cmd)->cmd.scan->ir_scan = 1;
- (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
+ x = jtag_NumEnabledTaps();
+ (*last_cmd)->cmd.scan->num_fields = x; /* one field per device */
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(x * sizeof(scan_field_t));
(*last_cmd)->cmd.scan->end_state = state;
- for (i = 0; i < jtag_num_devices; i++)
- {
+ nth_tap = -1;
+ tap = NULL;
+ for(;;){
int found = 0;
- device = jtag_get_device(i);
- scan_size = device->ir_length;
- (*last_cmd)->cmd.scan->fields[i].device = i;
- (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
- (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
+
+ // do this here so it is not forgotten
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ nth_tap++;
+ scan_size = tap->ir_length;
+ (*last_cmd)->cmd.scan->fields[nth_tap].tap = tap;
+ (*last_cmd)->cmd.scan->fields[nth_tap].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = NULL; /* disable verification by default */
/* search the list */
for (j = 0; j < num_fields; j++)
{
- if (i == fields[j].device)
+ if (tap == fields[j].tap)
{
found = 1;
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
-
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+
if (jtag_verify_capture_ir)
{
if (fields[j].in_handler==NULL)
{
- jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
+ jtag_set_check_value((*last_cmd)->cmd.scan->fields+nth_tap, tap->expected, tap->expected_mask, NULL);
} else
{
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
- (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = fields[j].in_handler;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler_priv = fields[j].in_handler_priv;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_check_value = tap->expected;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_check_mask = tap->expected_mask;
}
}
-
- device->bypass = 0;
+
+ tap->bypass = 0;
break;
}
}
-
+
if (!found)
{
- /* if a device isn't listed, set it to BYPASS */
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
- (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
- device->bypass = 1;
-
+ /* if a tap isn't listed, set it to BYPASS */
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = NULL;
+ tap->bypass = 1;
+
}
-
+
/* update device information */
- buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
+ buf_cpy((*last_cmd)->cmd.scan->fields[nth_tap].out_value, tap->cur_instr, scan_size);
}
-
+
return ERROR_OK;
}
void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
int retval;
-
+
jtag_prelude(state);
-
+
retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
if (retval!=ERROR_OK)
jtag_error=retval;
{
int i;
jtag_command_t **last_cmd;
-
+
last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
(*last_cmd)->next = NULL;
(*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
(*last_cmd)->cmd.scan->end_state = state;
- for (i = 0; i < num_fields; i++)
- {
+ for( i = 0 ; i < num_fields ; i++ ){
int num_bits = fields[i].num_bits;
int num_bytes = CEIL(fields[i].num_bits, 8);
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
+ (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
(*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
(*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
(*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
int retval;
-
+
jtag_prelude(state);
retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
{
- int i, j;
+ int j;
+ int nth_tap;
int bypass_devices = 0;
int field_count = 0;
int scan_size;
jtag_command_t **last_cmd = jtag_get_last_command_p();
- jtag_device_t *device = jtag_devices;
+ jtag_tap_t *tap;
/* count devices in bypass */
- while (device)
- {
- if (device->bypass)
+ tap = NULL;
+ bypass_devices = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ if( tap->bypass ){
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));
last_comand_pointer = &((*last_cmd)->next);
(*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
(*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
(*last_cmd)->cmd.scan->end_state = state;
-
- for (i = 0; i < jtag_num_devices; i++)
- {
+
+ tap = NULL;
+ nth_tap = -1;
+ for(;;){
+ nth_tap++;
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
int found = 0;
- (*last_cmd)->cmd.scan->fields[field_count].device = i;
-
+ (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
+
for (j = 0; j < num_fields; j++)
{
- if (i == fields[j].device)
+ if (tap == fields[j].tap)
{
found = 1;
scan_size = fields[j].num_bits;
{
#ifdef _DEBUG_JTAG_IO_
/* if a device isn't listed, the BYPASS register should be selected */
- if (!jtag_get_device(i)->bypass)
+ if (! tap->bypass)
{
LOG_ERROR("BUG: no scan data for a device not in BYPASS");
exit(-1);
}
-#endif
+#endif
/* program the scan field to 1 bit length, and ignore it's value */
(*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
(*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
{
#ifdef _DEBUG_JTAG_IO_
/* if a device is listed, the BYPASS register must not be selected */
- if (jtag_get_device(i)->bypass)
+ if (tap->bypass)
{
LOG_ERROR("BUG: scan data for a device in BYPASS");
exit(-1);
return ERROR_OK;
}
-void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
+void MINIDRIVER(interface_jtag_add_dr_out)(jtag_tap_t *target_tap,
int num_fields,
const int *num_bits,
const u32 *value,
enum tap_state end_state)
{
- int i;
+ int nth_tap;
int field_count = 0;
int scan_size;
int bypass_devices = 0;
jtag_command_t **last_cmd = jtag_get_last_command_p();
- jtag_device_t *device = jtag_devices;
+ jtag_tap_t *tap;
+
/* count devices in bypass */
- while (device)
- {
- if (device->bypass)
+ tap = NULL;
+ bypass_devices = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ if( tap->bypass ){
bypass_devices++;
- device = device->next;
+ }
}
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
last_comand_pointer = &((*last_cmd)->next);
(*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
(*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
(*last_cmd)->cmd.scan->end_state = end_state;
-
- for (i = 0; i < jtag_num_devices; i++)
- {
- (*last_cmd)->cmd.scan->fields[field_count].device = i;
-
- if (i == device_num)
+
+ tap = NULL;
+ nth_tap = -1;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ nth_tap++;
+ (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
+
+ if (tap == target_tap)
{
int j;
#ifdef _DEBUG_JTAG_IO_
/* if a device is listed, the BYPASS register must not be selected */
- if (jtag_get_device(i)->bypass)
+ if (tap->bypass)
{
LOG_ERROR("BUG: scan data for a device in BYPASS");
exit(-1);
{
#ifdef _DEBUG_JTAG_IO_
/* if a device isn't listed, the BYPASS register should be selected */
- if (!jtag_get_device(i)->bypass)
+ if (! tap->bypass)
{
LOG_ERROR("BUG: no scan data for a device not in BYPASS");
exit(-1);
}
-#endif
+#endif
/* program the scan field to 1 bit length, and ignore it's value */
(*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
(*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
{
int retval;
-
+
jtag_prelude(state);
retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
{
int i;
jtag_command_t **last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
last_comand_pointer = &((*last_cmd)->next);
(*last_cmd)->cmd.scan->num_fields = num_fields;
(*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
(*last_cmd)->cmd.scan->end_state = state;
-
+
for (i = 0; i < num_fields; i++)
{
int num_bits = fields[i].num_bits;
int num_bytes = CEIL(fields[i].num_bits, 8);
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
+ (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
(*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
(*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
(*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
void jtag_add_tlr(void)
{
- jtag_prelude(TAP_TLR);
-
+ jtag_prelude(TAP_RESET);
+
int retval;
retval=interface_jtag_add_tlr();
if (retval!=ERROR_OK)
int MINIDRIVER(interface_jtag_add_tlr)()
{
- enum tap_state state = TAP_TLR;
+ enum tap_state state = TAP_RESET;
jtag_command_t **last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
last_comand_pointer = &((*last_cmd)->next);
(*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
(*last_cmd)->cmd.statemove->end_state = state;
-
-
+
+
return ERROR_OK;
}
for (i=0; i<num_states; i++)
{
- if (path[i] == TAP_TLR)
+ if (path[i] == TAP_RESET)
{
- LOG_ERROR("BUG: TAP_TLR is not a valid state for pathmove sequences");
+ LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
exit(-1);
}
if ((tap_transitions[cur_state].low != path[i])&&
}
cur_state = path[i];
}
-
+
jtag_prelude1();
-
+
retval=interface_jtag_add_pathmove(num_states, path);
cmd_queue_cur_state = path[num_states - 1];
{
jtag_command_t **last_cmd = jtag_get_last_command_p();
int i;
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
last_comand_pointer = &((*last_cmd)->next);
(*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
(*last_cmd)->cmd.pathmove->num_states = num_states;
(*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
-
+
for (i = 0; i < num_states; i++)
(*last_cmd)->cmd.pathmove->path[i] = path[i];
-
+
return ERROR_OK;
}
int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
{
jtag_command_t **last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
(*last_cmd)->next = NULL;
(*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
(*last_cmd)->cmd.runtest->num_cycles = num_cycles;
(*last_cmd)->cmd.runtest->end_state = state;
-
+
return ERROR_OK;
}
void jtag_add_runtest(int num_cycles, enum tap_state state)
{
int retval;
-
+
jtag_prelude(state);
-
+
/* executed by sw or hw fifo */
retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
if (retval!=ERROR_OK)
{
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_HAS_TRST)&&
((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
{
if (((req_tlr_or_trst&&!jtag_trst)||
//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))
jtag_error=ERROR_FAIL;
return;
}
-
+
/* if TRST pulls SRST, we reset with TAP T-L-R */
if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
{
trst_with_tlr = 1;
}
-
+
if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
{
LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
jtag_error=ERROR_FAIL;
return;
}
-
+
if (req_tlr_or_trst)
{
if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
{
jtag_trst = 0;
}
-
+
jtag_srst = req_srst;
retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
if (jtag_nsrst_delay)
jtag_add_sleep(jtag_nsrst_delay * 1000);
}
-
+
if (trst_with_tlr)
{
LOG_DEBUG("JTAG reset with TLR instead of TRST");
- jtag_add_end_state(TAP_TLR);
+ jtag_add_end_state(TAP_RESET);
jtag_add_tlr();
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
return;
}
-
+
if (jtag_trst)
{
/* we just asserted nTRST, so we're now in Test-Logic-Reset,
* and inform possible listeners about this
*/
LOG_DEBUG("TRST line asserted");
- cmd_queue_cur_state = TAP_TLR;
+ cmd_queue_cur_state = TAP_RESET;
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
}
else
void jtag_add_end_state(enum tap_state state)
{
cmd_queue_end_state = state;
- if ((cmd_queue_end_state == TAP_SD)||(cmd_queue_end_state == TAP_SI))
+ if ((cmd_queue_end_state == TAP_DRSHIFT)||(cmd_queue_end_state == TAP_IRSHIFT))
{
- LOG_ERROR("BUG: TAP_SD/SI can't be end state. Calling code should use a larger scan field");
+ LOG_ERROR("BUG: TAP_DRSHIFT/SI can't be end state. Calling code should use a larger scan field");
}
}
int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
{
jtag_command_t **last_cmd = jtag_get_last_command_p();
-
+
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
(*last_cmd)->next = NULL;
(*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
(*last_cmd)->cmd.sleep->us = us;
-
+
return ERROR_OK;
}
{
int bit_count = 0;
int i;
-
+
bit_count = jtag_scan_size(cmd);
*buffer = malloc(CEIL(bit_count, 8));
-
+
bit_count = 0;
for (i = 0; i < cmd->num_fields; i++)
free(char_buf);
#endif
}
-
+
bit_count += cmd->fields[i].num_bits;
}
int i;
int bit_count = 0;
int retval;
-
+
/* we return ERROR_OK, unless a check fails, or a handler reports a problem */
retval = ERROR_OK;
-
+
for (i = 0; i < cmd->num_fields; i++)
{
/* if neither in_value nor in_handler
{
int num_bits = cmd->fields[i].num_bits;
u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
-
+
#ifdef _DEBUG_JTAG_IO_
char *char_buf;
LOG_DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
free(char_buf);
#endif
-
+
if (cmd->fields[i].in_value)
{
buf_cpy(captured, cmd->fields[i].in_value, num_bits);
-
+
if (cmd->fields[i].in_handler)
{
if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
}
}
}
-
+
/* no in_value specified, but a handler takes care of the scanned data */
if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
{
{
int retval = ERROR_OK;
int num_bits = field->num_bits;
-
+
int compare_failed = 0;
-
+
if (field->in_check_mask)
compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
else
compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
-
- if (compare_failed)
- {
+
+ if (compare_failed){
/* An error handler could have caught the failing check
* only report a problem when there wasn't a handler, or if the handler
* acknowledged the error
- */
+ */
+ LOG_WARNING("TAP %s:",
+ (field->tap == NULL) ? "(unknown)" : field->tap->dotted_name );
if (compare_failed)
{
char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
{
char *in_check_mask_char;
in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
- LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);
+ LOG_WARNING("value captured during scan didn't pass the requested check:");
+ LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
+ captured_char, in_check_value_char, in_check_mask_char);
free(in_check_mask_char);
}
else
free(captured_char);
free(in_check_value_char);
-
+
retval = ERROR_JTAG_QUEUE_FAILED;
}
-
+
}
return retval;
}
-/*
+/*
set up checking of this field using the in_handler. The values passed in must be valid until
after jtag_execute() has completed.
*/
{
int i;
int type = 0;
-
+
for (i = 0; i < cmd->num_fields; i++)
{
if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
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();
jtag_command_queue = NULL;
int jtag_reset_callback(enum jtag_event event, void *priv)
{
- jtag_device_t *device = priv;
+ jtag_tap_t *tap = priv;
LOG_DEBUG("-");
-
+
if (event == JTAG_TRST_ASSERTED)
{
- buf_set_ones(device->cur_instr, device->ir_length);
- device->bypass = 1;
+ buf_set_ones(tap->cur_instr, tap->ir_length);
+ tap->bypass = 1;
}
-
+
return ERROR_OK;
}
*/
int jtag_examine_chain(void)
{
- jtag_device_t *device = jtag_devices;
+ jtag_tap_t *tap;
scan_field_t field;
u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
int i;
int device_count = 0;
u8 zero_check = 0x0;
u8 one_check = 0xff;
-
- field.device = 0;
+
+ field.tap = NULL;
field.num_bits = sizeof(idcode_buffer) * 8;
field.out_value = idcode_buffer;
field.out_mask = NULL;
field.in_check_mask = NULL;
field.in_handler = NULL;
field.in_handler_priv = NULL;
-
+
for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
{
buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
}
-
- jtag_add_plain_dr_scan(1, &field, TAP_TLR);
+
+ jtag_add_plain_dr_scan(1, &field, TAP_RESET);
jtag_execute_queue();
-
+
for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
{
zero_check |= idcode_buffer[i];
one_check &= idcode_buffer[i];
}
-
+
/* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
if ((zero_check == 0x00) || (one_check == 0xff))
{
LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
return ERROR_JTAG_INIT_FAILED;
}
-
+
+ // point at the 1st tap
+ tap = jtag_NextEnabledTap(NULL);
+ if( tap == NULL ){
+ LOG_ERROR("JTAG: No taps enabled?");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
{
u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
if ((idcode & 1) == 0)
{
/* LSB must not be 0, this indicates a device in bypass */
- LOG_WARNING("Device does not have IDCODE");
+ LOG_WARNING("Tap/Device does not have IDCODE");
idcode=0;
-
+
bit_count += 1;
}
else
u32 manufacturer;
u32 part;
u32 version;
-
+
if (idcode == 0x000000FF)
{
int unexpected=0;
- /* End of chain (invalid manufacturer ID)
- *
+ /* End of chain (invalid manufacturer ID)
+ *
* The JTAG examine is the very first thing that happens
- *
+ *
* A single JTAG device requires only 64 bits to be read back correctly.
- *
+ *
* The code below adds a check that the rest of the data scanned (640 bits)
* are all as expected. This helps diagnose/catch problems with the JTAG chain
- *
+ *
* earlier and gives more helpful/explicit error messages.
*/
- for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
+ for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
{
idcode = buf_get_u32(idcode_buffer, bit_count, 32);
if (unexpected||(idcode != 0x000000FF))
unexpected = 1;
}
}
-
+
break;
}
-
- manufacturer = (idcode & 0xffe) >> 1;
- part = (idcode & 0xffff000) >> 12;
- version = (idcode & 0xf0000000) >> 28;
- LOG_INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
+#define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
+ manufacturer = EXTRACT_MFG(idcode);
+#define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
+ part = EXTRACT_PART(idcode);
+#define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
+ version = EXTRACT_VER(idcode);
+
+ LOG_INFO("JTAG tap: %s tap/device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
+ ((tap != NULL) ? (tap->dotted_name) : "(not-named)"),
idcode, manufacturer, part, version);
-
+
bit_count += 32;
}
- if (device)
+ if (tap)
{
- device->idcode = idcode;
- device = device->next;
+ tap->idcode = idcode;
+
+ if (tap->expected_ids_cnt > 0) {
+ /* Loop over the expected identification codes and test for a match */
+ u8 ii;
+ for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
+ if( tap->idcode == tap->expected_ids[ii] ){
+ break;
+ }
+ }
+
+ /* If none of the expected ids matched, log an error */
+ if (ii == tap->expected_ids_cnt) {
+ LOG_ERROR("JTAG tap: %s got: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
+ tap->dotted_name,
+ idcode,
+ EXTRACT_MFG( tap->idcode ),
+ EXTRACT_PART( tap->idcode ),
+ EXTRACT_VER( tap->idcode ) );
+ for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
+ LOG_ERROR("JTAG tap: %s expected %hhu of %hhu: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
+ tap->dotted_name,
+ ii + 1,
+ tap->expected_ids_cnt,
+ tap->expected_ids[ii],
+ EXTRACT_MFG( tap->expected_ids[ii] ),
+ EXTRACT_PART( tap->expected_ids[ii] ),
+ EXTRACT_VER( tap->expected_ids[ii] ) );
+ }
+
+ return ERROR_JTAG_INIT_FAILED;
+ } else {
+ LOG_INFO("JTAG Tap/device matched");
+ }
+ } else {
+#if 0
+ LOG_INFO("JTAG TAP ID: 0x%08x - Unknown - please report (A) chipname and (B) idcode to the openocd project",
+ tap->idcode);
+#endif
+ }
+ tap = jtag_NextEnabledTap(tap);
}
device_count++;
}
-
+
/* see if number of discovered devices matches configuration */
- if (device_count != jtag_num_devices)
+ if (device_count != jtag_NumEnabledTaps())
{
- LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
- device_count, jtag_num_devices);
+ LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
+ device_count, jtag_NumEnabledTaps(), jtag_NumTotalTaps());
LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
int jtag_validate_chain(void)
{
- jtag_device_t *device = jtag_devices;
+ jtag_tap_t *tap;
int total_ir_length = 0;
u8 *ir_test = NULL;
scan_field_t field;
int chain_pos = 0;
-
- while (device)
- {
- total_ir_length += device->ir_length;
- device = device->next;
+
+ tap = NULL;
+ total_ir_length = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ total_ir_length += tap->ir_length;
}
-
+
total_ir_length += 2;
ir_test = malloc(CEIL(total_ir_length, 8));
buf_set_ones(ir_test, total_ir_length);
-
- field.device = 0;
+
+ field.tap = NULL;
field.num_bits = total_ir_length;
field.out_value = ir_test;
field.out_mask = NULL;
field.in_check_mask = NULL;
field.in_handler = NULL;
field.in_handler_priv = NULL;
-
- jtag_add_plain_ir_scan(1, &field, TAP_TLR);
+
+ jtag_add_plain_ir_scan(1, &field, TAP_RESET);
jtag_execute_queue();
-
- device = jtag_devices;
- while (device)
- {
+
+ tap = NULL;
+ chain_pos = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+
+
if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
{
char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
free(ir_test);
return ERROR_JTAG_INIT_FAILED;
}
- chain_pos += device->ir_length;
- device = device->next;
+ chain_pos += tap->ir_length;
}
-
+
if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
{
char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
free(ir_test);
return ERROR_JTAG_INIT_FAILED;
}
-
+
free(ir_test);
-
+
+ return ERROR_OK;
+}
+
+
+static int
+jim_newtap_cmd( Jim_GetOptInfo *goi )
+{
+ jtag_tap_t *pTap;
+ jtag_tap_t **ppTap;
+ jim_wide w;
+ int x;
+ int e;
+ int reqbits;
+ Jim_Nvp *n;
+ char *cp;
+ const Jim_Nvp opts[] = {
+#define NTAP_OPT_IRLEN 0
+ { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
+#define NTAP_OPT_IRMASK 1
+ { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
+#define NTAP_OPT_IRCAPTURE 2
+ { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
+#define NTAP_OPT_ENABLED 3
+ { .name = "-enable" , .value = NTAP_OPT_ENABLED },
+#define NTAP_OPT_DISABLED 4
+ { .name = "-disable" , .value = NTAP_OPT_DISABLED },
+#define NTAP_OPT_EXPECTED_ID 5
+ { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
+ { .name = NULL , .value = -1 },
+ };
+
+
+ pTap = malloc( sizeof(jtag_tap_t) );
+ memset( pTap, 0, sizeof(*pTap) );
+ if( !pTap ){
+ Jim_SetResult_sprintf( goi->interp, "no memory");
+ return JIM_ERR;
+ }
+ //
+ // we expect CHIP + TAP + OPTIONS
+ //
+ if( goi->argc < 3 ){
+ Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
+ return JIM_ERR;
+ }
+ Jim_GetOpt_String( goi, &cp, NULL );
+ pTap->chip = strdup(cp);
+
+ Jim_GetOpt_String( goi, &cp, NULL );
+ pTap->tapname = strdup(cp);
+
+ // name + dot + name + null
+ x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
+ cp = malloc( x );
+ sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
+ pTap->dotted_name = cp;
+
+ LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
+ pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
+
+
+ // default is enabled
+ pTap->enabled = 1;
+
+ // deal with options
+#define NTREQ_IRLEN 1
+#define NTREQ_IRCAPTURE 2
+#define NTREQ_IRMASK 4
+
+ // clear them as we find them
+ reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
+
+ while( goi->argc ){
+ e = Jim_GetOpt_Nvp( goi, opts, &n );
+ if( e != JIM_OK ){
+ Jim_GetOpt_NvpUnknown( goi, opts, 0 );
+ return e;
+ }
+ LOG_DEBUG("Processing option: %s", n->name );
+ switch( n->value ){
+ case NTAP_OPT_ENABLED:
+ pTap->enabled = 1;
+ break;
+ case NTAP_OPT_DISABLED:
+ pTap->enabled = 0;
+ break;
+ case NTAP_OPT_EXPECTED_ID:
+ {
+ u32 *new_expected_ids;
+
+ e = Jim_GetOpt_Wide( goi, &w );
+ if( e != JIM_OK) {
+ Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
+ return e;
+ }
+
+ new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
+ if (new_expected_ids == NULL) {
+ Jim_SetResult_sprintf( goi->interp, "no memory");
+ return JIM_ERR;
+ }
+
+ memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
+
+ new_expected_ids[pTap->expected_ids_cnt] = w;
+
+ free(pTap->expected_ids);
+ pTap->expected_ids = new_expected_ids;
+ pTap->expected_ids_cnt++;
+ break;
+ }
+ case NTAP_OPT_IRLEN:
+ case NTAP_OPT_IRMASK:
+ case NTAP_OPT_IRCAPTURE:
+ e = Jim_GetOpt_Wide( goi, &w );
+ if( e != JIM_OK ){
+ Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
+ return e;
+ }
+ if( (w < 0) || (w > 0xffff) ){
+ // wacky value
+ Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
+ n->name, (int)(w), (int)(w));
+ return JIM_ERR;
+ }
+ switch(n->value){
+ case NTAP_OPT_IRLEN:
+ pTap->ir_length = w;
+ reqbits &= (~(NTREQ_IRLEN));
+ break;
+ case NTAP_OPT_IRMASK:
+ pTap->ir_capture_mask = w;
+ reqbits &= (~(NTREQ_IRMASK));
+ break;
+ case NTAP_OPT_IRCAPTURE:
+ pTap->ir_capture_value = w;
+ reqbits &= (~(NTREQ_IRCAPTURE));
+ break;
+ }
+ } // switch(n->value)
+ } // while( goi->argc )
+
+ // Did we get all the options?
+ if( reqbits ){
+ // no
+ Jim_SetResult_sprintf( goi->interp,
+ "newtap: %s missing required parameters",
+ pTap->dotted_name);
+ // fixme: Tell user what is missing :-(
+ // no memory leaks pelase
+ free(((void *)(pTap->expected_ids)));
+ free(((void *)(pTap->chip)));
+ free(((void *)(pTap->tapname)));
+ free(((void *)(pTap->dotted_name)));
+ free(((void *)(pTap)));
+ return JIM_ERR;
+ }
+
+ pTap->expected = malloc( pTap->ir_length );
+ pTap->expected_mask = malloc( pTap->ir_length );
+ pTap->cur_instr = malloc( pTap->ir_length );
+
+ buf_set_u32( pTap->expected,
+ 0,
+ pTap->ir_length,
+ pTap->ir_capture_value );
+ buf_set_u32( pTap->expected_mask,
+ 0,
+ pTap->ir_length,
+ pTap->ir_capture_mask );
+ buf_set_ones( pTap->cur_instr,
+ pTap->ir_length );
+
+ pTap->bypass = 1;
+
+
+ jtag_register_event_callback(jtag_reset_callback, pTap );
+
+ ppTap = &(jtag_all_taps);
+ while( (*ppTap) != NULL ){
+ ppTap = &((*ppTap)->next_tap);
+ }
+ *ppTap = pTap;
+ {
+ static int n_taps = 0;
+ pTap->abs_chain_position = n_taps++;
+ }
+ LOG_DEBUG( "Created Tap: %s @ abs position %d, irlen %d, capture: 0x%x mask: 0x%x",
+ (*ppTap)->dotted_name,
+ (*ppTap)->abs_chain_position,
+ (*ppTap)->ir_length,
+ (*ppTap)->ir_capture_value,
+ (*ppTap)->ir_capture_mask );
+
+
return ERROR_OK;
}
enum {
JTAG_CMD_INTERFACE,
JTAG_CMD_INIT_RESET,
+ JTAG_CMD_NEWTAP,
+ JTAG_CMD_TAPENABLE,
+ JTAG_CMD_TAPDISABLE,
+ JTAG_CMD_TAPISENABLED
};
-
+
const Jim_Nvp jtag_cmds[] = {
{ .name = "interface" , .value = JTAG_CMD_INTERFACE },
{ .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
-
+ { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
+ { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
+ { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
+ { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
+
{ .name = NULL, .value = -1 },
};
context = Jim_GetAssocData(interp, "context");
- // go past the command
+ // go past the command
Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
return JIM_ERR;
}
return JIM_OK;
+ case JTAG_CMD_NEWTAP:
+ return jim_newtap_cmd( &goi );
+ break;
+ case JTAG_CMD_TAPISENABLED:
+ case JTAG_CMD_TAPENABLE:
+ case JTAG_CMD_TAPDISABLE:
+ if( goi.argc != 1 ){
+ Jim_SetResultString( goi.interp, "Too many parameters",-1 );
+ return JIM_ERR;
+ }
+
+ {
+ jtag_tap_t *t;
+ t = jtag_TapByJimObj( goi.interp, goi.argv[0] );
+ if( t == NULL ){
+ return JIM_ERR;
+ }
+ switch( n->value ){
+ case JTAG_CMD_TAPISENABLED:
+ // below
+ break;
+ case JTAG_CMD_TAPENABLE:
+ e = 1;
+ t->enabled = e;
+ break;
+ case JTAG_CMD_TAPDISABLE:
+ e = 0;
+ t->enabled = e;
+ break;
+ }
+ Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
+ return JIM_OK;
+ }
}
-
+
return JIM_ERR;
}
COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
-
+
register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
COMMAND_EXEC, "print current scan chain configuration");
{
if (jtag)
return ERROR_OK;
-
+
if (!jtag_interface)
{
/* nothing was previously specified by "interface" command */
if (jtag_interface->init() != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;
-
-
+
+
jtag = jtag_interface;
return ERROR_OK;
}
static int jtag_init_inner(struct command_context_s *cmd_ctx)
{
- jtag_device_t *device;
+ jtag_tap_t *tap;
int retval;
LOG_DEBUG("Init JTAG chain");
-
- device = jtag_devices;
- jtag_ir_scan_size = 0;
- jtag_num_devices = 0;
- while (device != NULL)
- {
- jtag_ir_scan_size += device->ir_length;
- jtag_num_devices++;
- device = device->next;
+
+
+ tap = jtag_NextEnabledTap(NULL);
+ if( tap == NULL ){
+ LOG_ERROR("There are no enabled taps?");
+ return ERROR_JTAG_INIT_FAILED;
}
-
+
jtag_add_tlr();
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
{
LOG_ERROR("trying to validate configured JTAG chain anyway...");
}
-
+
if (jtag_validate_chain() != ERROR_OK)
{
LOG_ERROR("Could not validate JTAG chain, continuing anyway...");
}
-
+
return ERROR_OK;
}
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
+ *
+ * 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(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
+ * 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.
*/
static int default_speed_div(int speed, int *khz)
{
LOG_ERROR("Translation from jtag_speed to khz not implemented");
- return ERROR_FAIL;
+ return ERROR_FAIL;
+}
+
+static int default_power_dropout(int *dropout)
+{
+ *dropout=0; /* by default we can't detect power dropout */
+ return ERROR_OK;
+}
+
+static int default_srst_asserted(int *srst_asserted)
+{
+ *srst_asserted=0; /* by default we can't detect srst asserted */
+ return ERROR_OK;
}
int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
}
jtag_interface = jtag_interfaces[i];
-
+
if (jtag_interface->khz == NULL)
{
jtag_interface->khz = default_khz;
{
jtag_interface->speed_div = default_speed_div;
}
+ if (jtag_interface->power_dropout == NULL)
+ {
+ jtag_interface->power_dropout = default_power_dropout;
+ }
+ if (jtag_interface->srst_asserted == NULL)
+ {
+ jtag_interface->srst_asserted = default_srst_asserted;
+ }
+
return ERROR_OK;
}
}
int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- jtag_device_t **last_device_p = &jtag_devices;
-
- if (*last_device_p)
- {
- while ((*last_device_p)->next)
- last_device_p = &((*last_device_p)->next);
- last_device_p = &((*last_device_p)->next);
- }
-
- if (argc < 3)
+ int e;
+ char buf[1024];
+ Jim_Obj *newargs[ 10 ];
+ //
+ // CONVERT SYNTAX
+ //
+ // argv[-1] = command
+ // argv[ 0] = ir length
+ // argv[ 1] = ir capture
+ // argv[ 2] = ir mask
+ // argv[ 3] = not actually used by anything but in the docs
+
+ if( argc < 4 ){
+ command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
return ERROR_OK;
-
- *last_device_p = malloc(sizeof(jtag_device_t));
- (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
-
- (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
- buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
- (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
- buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
-
- (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
- (*last_device_p)->bypass = 1;
- buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
-
- (*last_device_p)->next = NULL;
-
- jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
-
- jtag_num_devices++;
-
- return ERROR_OK;
+ }
+ command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
+ command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
+ args[0],
+ args[1],
+ args[2] );
+ command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundryscan(len5)");
+ command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
+ command_print( cmd_ctx, "jtag newtap stm32 boundry ....., and the tap: \"stm32.boundery\"");
+ command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
+
+
+
+ newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
+ newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
+ sprintf( buf, "chip%d", jtag_NumTotalTaps() );
+ newargs[2] = Jim_NewStringObj( interp, buf, -1 );
+ sprintf( buf, "tap%d", jtag_NumTotalTaps() );
+ newargs[3] = Jim_NewStringObj( interp, buf, -1 );
+ newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
+ newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
+ newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
+ newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
+ newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
+ newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
+
+ command_print( cmd_ctx, "NEW COMMAND:");
+ sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
+ Jim_GetString( newargs[0], NULL ),
+ Jim_GetString( newargs[1], NULL ),
+ Jim_GetString( newargs[2], NULL ),
+ Jim_GetString( newargs[3], NULL ),
+ Jim_GetString( newargs[4], NULL ),
+ Jim_GetString( newargs[5], NULL ),
+ Jim_GetString( newargs[6], NULL ),
+ Jim_GetString( newargs[7], NULL ),
+ Jim_GetString( newargs[8], NULL ),
+ Jim_GetString( newargs[9], NULL ) );
+
+
+
+ e = jim_jtag_command( interp, 10, newargs );
+ if( e != JIM_OK ){
+ command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
+ }
+ return e;
}
+
int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- jtag_device_t *device = jtag_devices;
- int device_count = 0;
-
- while (device)
- {
- u32 expected, expected_mask, cur_instr;
- expected = buf_get_u32(device->expected, 0, device->ir_length);
- expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
- cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
- command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);
- device = device->next;
- device_count++;
+ jtag_tap_t *tap;
+
+ tap = jtag_all_taps;
+ command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
+ command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
+
+ while( tap ){
+ u32 expected, expected_mask, cur_instr, ii;
+ expected = buf_get_u32(tap->expected, 0, tap->ir_length);
+ expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
+ cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
+
+ command_print(cmd_ctx,
+ "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
+ tap->abs_chain_position,
+ tap->dotted_name,
+ tap->enabled ? 'Y' : 'n',
+ tap->idcode,
+ (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
+ tap->ir_length,
+ expected,
+ expected_mask,
+ cur_instr);
+
+ for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
+ command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
+ tap->expected_ids[ii]);
+ }
+
+ tap = tap->next_tap;
}
return ERROR_OK;
{
if (argc < 1)
return ERROR_COMMAND_SYNTAX_ERROR;
-
+
if (argc >= 1)
{
if (strcmp(args[0], "none") == 0)
jtag_reset_config = RESET_TRST_AND_SRST;
else
{
- LOG_ERROR("invalid reset_config argument, defaulting to none");
+ LOG_ERROR("(1) invalid reset_config argument (%s), defaulting to none", args[0]);
jtag_reset_config = RESET_NONE;
return ERROR_INVALID_ARGUMENTS;
}
}
-
+
if (argc >= 2)
{
if (strcmp(args[1], "separate") == 0)
jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
else
{
- LOG_ERROR("invalid reset_config argument, defaulting to none");
+ LOG_ERROR("(2) invalid reset_config argument (%s), defaulting to none", args[1]);
jtag_reset_config = RESET_NONE;
return ERROR_INVALID_ARGUMENTS;
}
}
}
-
+
if (argc >= 3)
{
if (strcmp(args[2], "trst_open_drain") == 0)
jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
else
{
- LOG_ERROR("invalid reset_config argument, defaulting to none");
+ LOG_ERROR("(3) invalid reset_config argument (%s) defaulting to none", args[2] );
jtag_reset_config = RESET_NONE;
return ERROR_INVALID_ARGUMENTS;
}
jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
else
{
- LOG_ERROR("invalid reset_config argument, defaulting to none");
+ LOG_ERROR("(4) invalid reset_config argument (%s), defaulting to none", args[3]);
jtag_reset_config = RESET_NONE;
return ERROR_INVALID_ARGUMENTS;
}
}
-
+
return ERROR_OK;
}
{
jtag_nsrst_delay = strtoul(args[0], NULL, 0);
}
-
+
return ERROR_OK;
}
{
jtag_ntrst_delay = strtoul(args[0], NULL, 0);
}
-
+
return ERROR_OK;
}
int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval=ERROR_OK;
-
+
if (argc == 1)
{
LOG_DEBUG("handle jtag speed");
int cur_speed = 0;
cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
-
- /* this command can be called during CONFIG,
+
+ /* this command can be called during CONFIG,
* in which case jtag isn't initialized */
if (jtag)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
-
+
return retval;
}
{
int retval=ERROR_OK;
LOG_DEBUG("handle jtag khz");
-
+
if(argc == 1)
{
speed_khz = strtoul(args[0], NULL, 0);
speed_khz = 0;
return retval;
}
-
+
cur_speed = jtag_speed = speed_div1;
-
+
retval=jtag->speed(cur_speed);
} else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (jtag!=NULL)
+ if (jtag!=NULL)
{
if ((retval=jtag->speed_div(jtag_speed, &speed_khz))!=ERROR_OK)
return retval;
}
-
- command_print(cmd_ctx, "jtag_khz: %d", speed_khz);
+
+ if (speed_khz==0)
+ {
+ command_print(cmd_ctx, "RCLK - adaptive");
+ } else
+ {
+ command_print(cmd_ctx, "%d kHz", speed_khz);
+ }
return retval;
}
}
}
command_print(cmd_ctx, "current endstate: %s", tap_state_strings[cmd_queue_end_state]);
-
+
return ERROR_OK;
}
{
int trst = -1;
int srst = -1;
-
+
if (argc < 2)
{
return ERROR_COMMAND_SYNTAX_ERROR;
{
int i;
scan_field_t *fields;
-
+ jtag_tap_t *tap;
+
if ((argc < 2) || (argc % 2))
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
fields = malloc(sizeof(scan_field_t) * argc / 2);
-
+
for (i = 0; i < argc / 2; i++)
{
- int device = strtoul(args[i*2], NULL, 0);
- int field_size = jtag_get_device(device)->ir_length;
- fields[i].device = device;
+ tap = jtag_TapByString( args[i*2] );
+ if (tap==NULL)
+ {
+ command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
+ return ERROR_FAIL;
+ }
+ int field_size = tap->ir_length;
+ fields[i].tap = tap;
fields[i].out_value = malloc(CEIL(field_size, 8));
buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
fields[i].out_mask = NULL;
int num_fields;
int field_count = 0;
int i, e;
- long device;
+ jtag_tap_t *tap;
/* args[1] = device
* args[2] = num_bits
return e;
}
- e = Jim_GetLong(interp, args[1], &device);
- if (e != JIM_OK)
- return e;
+ tap = jtag_TapByJimObj( interp, args[1] );
+ if( tap == NULL ){
+ return JIM_ERR;
+ }
num_fields=(argc-2)/2;
fields = malloc(sizeof(scan_field_t) * num_fields);
Jim_GetLong(interp, args[i], &bits);
str = Jim_GetString(args[i+1], &len);
-
- fields[field_count].device = device;
+
+
+ fields[field_count].tap = tap;
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);
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);
+ Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
return JIM_ERR;
}
}
Jim_SetResult(interp, list);
-
+
free(fields);
return JIM_OK;
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
-
+
command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
-
+
return ERROR_OK;
}
+
+
+int jtag_power_dropout(int *dropout)
+{
+ return jtag->power_dropout(dropout);
+}
+
+int jtag_srst_asserted(int *srst_asserted)
+{
+ return jtag->srst_asserted(srst_asserted);
+}
+
projects / openocd / blobdiff