#include "string.h"
#include <unistd.h>
+#ifndef INTERFACE
+/* this allows JTAG devices to implement the entire jtag_xxx() layer in hw/sw */
+#define INTERFACE(a) a
+#endif
+
+
+/* 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;
+
+
char* tap_state_strings[16] =
{
"tlr",
int 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;
- int scan_size = 0;
-
if (jtag_trst == 1)
{
WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ jtag_error=ERROR_JTAG_TRST_ASSERTED;
return ERROR_JTAG_TRST_ASSERTED;
}
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ int retval=interface_jtag_add_ir_scan(num_fields, fields, state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+ return retval;
+}
+
+int INTERFACE(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;
+ int scan_size = 0;
+
+
last_cmd = jtag_get_last_command_p();
/* allocate memory for a new list member */
(*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));
(*last_cmd)->cmd.scan->end_state = state;
-
- if (state != -1)
- cmd_queue_end_state = state;
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
-
- cmd_queue_cur_state = cmd_queue_end_state;
-
for (i = 0; i < jtag_num_devices; i++)
{
int found = 0;
}
int jtag_add_statemove(enum tap_state state)
{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
if (jtag_trst == 1)
{
WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
+ return jtag_error=ERROR_JTAG_TRST_ASSERTED;
}
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->next = NULL;
- (*last_cmd)->type = JTAG_STATEMOVE;
-
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- (*last_cmd)->cmd.statemove->end_state = state;
-
if (state != -1)
cmd_queue_end_state = state;
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
cmd_queue_cur_state = cmd_queue_end_state;
+
+ return interface_jtag_add_statemove(state);
+}
+
+int INTERFACE(interface_jtag_add_statemove)(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_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_STATEMOVE;
+
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
+ (*last_cmd)->cmd.statemove->end_state = state;
+
return ERROR_OK;
}
return ERROR_OK;
}
-int jtag_add_runtest(int num_cycles, enum tap_state state)
+int INTERFACE(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
{
jtag_command_t **last_cmd = jtag_get_last_command_p();
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
/* allocate memory for a new list member */
*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
(*last_cmd)->next = NULL;
(*last_cmd)->cmd.runtest->num_cycles = num_cycles;
(*last_cmd)->cmd.runtest->end_state = state;
+ return ERROR_OK;
+}
+
+int jtag_add_runtest(int num_cycles, enum tap_state state)
+{
+ if (jtag_trst == 1)
+ {
+ jtag_error=ERROR_JTAG_QUEUE_FAILED;
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
if (state != -1)
cmd_queue_end_state = state;
cmd_queue_cur_state = cmd_queue_end_state;
- return ERROR_OK;
+ /* executed by sw or hw fifo */
+ return interface_jtag_add_runtest(num_cycles, state);
}
int jtag_add_reset(int req_trst, int req_srst)
{
int trst_with_tms = 0;
-
- jtag_command_t **last_cmd = jtag_get_last_command_p();
+ int retval;
if (req_trst == -1)
req_trst = jtag_trst;
/* 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_trst == 0))
- return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
+ {
+ return jtag_error=ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
+ }
/* if TRST pulls SRST, we reset with TAP T-L-R */
if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
{
ERROR("requested nSRST assertion, but the current configuration doesn't support this");
- return ERROR_JTAG_RESET_CANT_SRST;
+ return jtag_error=ERROR_JTAG_RESET_CANT_SRST;
}
if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
req_trst = 0;
trst_with_tms = 1;
}
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_RESET;
-
- (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
- (*last_cmd)->cmd.reset->trst = req_trst;
- (*last_cmd)->cmd.reset->srst = req_srst;
jtag_trst = req_trst;
jtag_srst = req_srst;
if (trst_with_tms)
{
- last_cmd = &((*last_cmd)->next);
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_STATEMOVE;
-
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- (*last_cmd)->cmd.statemove->end_state = TAP_TLR;
-
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
cmd_queue_cur_state = TAP_TLR;
cmd_queue_end_state = TAP_TLR;
jtag_add_sleep(jtag_ntrst_delay * 1000);
}
}
+ retval = interface_jtag_add_reset(req_trst, req_srst);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+
+ if (trst_with_tms)
+ {
+ jtag_add_statemove(TAP_TLR);
+ }
+
+ return retval;
+
+}
+
+int INTERFACE(interface_jtag_add_reset)(int req_trst, int req_srst)
+{
+ 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_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_RESET;
+
+ (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
+ (*last_cmd)->cmd.reset->trst = req_trst;
+ (*last_cmd)->cmd.reset->srst = req_srst;
+
+
return ERROR_OK;
}
return type;
}
-int jtag_execute_queue(void)
+int INTERFACE(interface_jtag_execute_queue)(void)
{
int retval;
jtag_command_queue = NULL;
last_comand_pointer = &jtag_command_queue;
+ jtag_error=ERROR_OK;
+
+ return retval;
+}
+
+int jtag_execute_queue(void)
+{
+ int retval=interface_jtag_execute_queue();
+ if (retval!=ERROR_OK)
+ return retval;
+ retval=jtag_error;
+ jtag_error=ERROR_OK;
return retval;
}
int jtag_init(struct command_context_s *cmd_ctx)
{
- int i, validate_tries = 0;
+ int validate_tries = 0;
jtag_device_t *device;
DEBUG("-");
projects / fw / openocd / blobdiff