diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/jtag.c | 110 |
1 files changed, 23 insertions, 87 deletions
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 6be63442..2503a165 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -391,7 +391,7 @@ void cmd_queue_free() cmd_queue_pages = NULL; } -void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +static void jtag_prelude1() { if (jtag_trst == 1) { @@ -400,13 +400,23 @@ void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state return; } - if (state != -1) - cmd_queue_end_state = state; - if (cmd_queue_end_state == TAP_TLR) jtag_call_event_callbacks(JTAG_TRST_ASSERTED); +} + +static void jtag_prelude(enum tap_state state) +{ + jtag_prelude1(); + if (state != -1) + cmd_queue_end_state = state; + cmd_queue_cur_state = cmd_queue_end_state; +} + +void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +{ + jtag_prelude(state); int retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state); if (retval!=ERROR_OK) @@ -492,20 +502,7 @@ int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; + jtag_prelude(state); int retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state); if (retval!=ERROR_OK) @@ -551,20 +548,7 @@ int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *f void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; + jtag_prelude(state); int retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state); if (retval!=ERROR_OK) @@ -749,20 +733,7 @@ void MINIDRIVER(interface_jtag_add_dr_out)(int device_num, void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; + jtag_prelude(state); int retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state); if (retval!=ERROR_OK) @@ -806,20 +777,7 @@ int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *f } void jtag_add_statemove(enum tap_state state) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; + jtag_prelude(state); int retval; retval=interface_jtag_add_statemove(cmd_queue_end_state); @@ -846,22 +804,11 @@ int MINIDRIVER(interface_jtag_add_statemove)(enum tap_state state) void jtag_add_pathmove(int num_states, enum tap_state *path) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - /* the last state has to be a stable state */ if (tap_move_map[path[num_states - 1]] == -1) { - ERROR("TAP path doesn't finish in a stable state"); - jtag_error=ERROR_JTAG_NOT_IMPLEMENTED; - return; + ERROR("BUG: TAP path doesn't finish in a stable state"); + exit(-1); } enum tap_state cur_state=cmd_queue_cur_state; @@ -877,6 +824,8 @@ void jtag_add_pathmove(int num_states, enum tap_state *path) cur_state = path[i]; } + jtag_prelude1(); + cmd_queue_cur_state = path[num_states - 1]; int retval=interface_jtag_add_pathmove(num_states, path); @@ -925,20 +874,7 @@ int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state) void jtag_add_runtest(int num_cycles, enum tap_state state) { - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - jtag_error=ERROR_JTAG_TRST_ASSERTED; - return; - } - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; + jtag_prelude(state); /* executed by sw or hw fifo */ int retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state); |