"ABSENT"
};
+typedef struct
+{
+ tap_state_t from;
+ tap_state_t to;
+ u32 num_of_moves;
+ tap_state_t paths[8];
+}svf_statemove_t;
+
+svf_statemove_t svf_statemoves[] =
+{
+ // from to num_of_moves, paths[8]
+// {TAP_RESET, TAP_RESET, 1, {TAP_RESET}},
+ {TAP_RESET, TAP_IDLE, 2, {TAP_RESET, TAP_IDLE}},
+ {TAP_RESET, TAP_DRPAUSE, 6, {TAP_RESET, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
+ {TAP_RESET, TAP_IRPAUSE, 7, {TAP_RESET, TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
+
+// {TAP_IDLE, TAP_RESET, 4, {TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
+ {TAP_IDLE, TAP_IDLE, 1, {TAP_IDLE}},
+ {TAP_IDLE, TAP_DRPAUSE, 5, {TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
+ {TAP_IDLE, TAP_IRPAUSE, 6, {TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
+
+// {TAP_DRPAUSE, TAP_RESET, 6, {TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
+ {TAP_DRPAUSE, TAP_IDLE, 4, {TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE}},
+ {TAP_DRPAUSE, TAP_DRPAUSE, 7, {TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
+ {TAP_DRPAUSE, TAP_IRPAUSE, 8, {TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
+
+// {TAP_IRPAUSE, TAP_RESET, 6, {TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
+ {TAP_IRPAUSE, TAP_IDLE, 4, {TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_IDLE}},
+ {TAP_IRPAUSE, TAP_DRPAUSE, 7, {TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
+ {TAP_IRPAUSE, TAP_IRPAUSE, 8, {TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}}
+};
+
char *svf_tap_state_name[TAP_NUM_STATES];
#define XXR_TDI (1 << 0)
static int svf_line_number = 1;
static jtag_tap_t *tap = NULL;
-static tap_state_t last_state = TAP_RESET;
#define SVF_MAX_BUFFER_SIZE_TO_COMMIT (4 * 1024)
static u8 *svf_tdi_buffer = NULL, *svf_tdo_buffer = NULL, *svf_mask_buffer = NULL;
}
}
+unsigned svf_get_mask_u32(int bitlen)
+{
+ u32 bitmask;
+
+ if (bitlen < 0)
+ {
+ bitmask = 0;
+ }
+ else if (bitlen >= 32)
+ {
+ bitmask = 0xFFFFFFFF;
+ }
+ else
+ {
+ bitmask = (1 << bitlen) - 1;
+ }
+
+ return bitmask;
+}
+
static const char* tap_state_svf_name(tap_state_t state)
{
const char* ret;
return ret;
}
+static int svf_add_statemove(tap_state_t state_to)
+{
+ tap_state_t state_from = cmd_queue_cur_state;
+ u8 index;
+
+ for (index = 0; index < dimof(svf_statemoves); index++)
+ {
+ if ((svf_statemoves[index].from == state_from)
+ && (svf_statemoves[index].to == state_to))
+ {
+ if (TAP_RESET == state_from)
+ {
+ jtag_add_tlr();
+ if (svf_statemoves[index].num_of_moves > 1)
+ {
+ jtag_add_pathmove(svf_statemoves[index].num_of_moves - 1, svf_statemoves[index].paths + 1);
+ }
+ }
+ else
+ {
+ if (svf_statemoves[index].num_of_moves > 0)
+ {
+ jtag_add_pathmove(svf_statemoves[index].num_of_moves, svf_statemoves[index].paths);
+ }
+ }
+ return ERROR_OK;
+ }
+ }
+ LOG_ERROR("can not move to %s", tap_state_svf_name(state_to));
+ return ERROR_FAIL;
+}
+
static int handle_svf_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
#define SVF_NUM_OF_OPTIONS 1
{
svf_tap_state_name[i] = (char *)tap_state_svf_name(i);
}
+
// TAP_RESET
jtag_add_tlr();
{
unsigned bitmask;
unsigned received, expected, tapmask;
- if (svf_check_tdo_para[i].bit_len >= 32)
- {
- bitmask = 0xFFFFFFFF;
- }
- else
- {
- bitmask = (1 << svf_check_tdo_para[i].bit_len) - 1;
- }
+ bitmask = svf_get_mask_u32(svf_check_tdo_para[i].bit_len);
+
memcpy(&received, svf_tdi_buffer + index, sizeof(unsigned));
memcpy(&expected, svf_tdo_buffer + index, sizeof(unsigned));
memcpy(&tapmask, svf_mask_buffer + index, sizeof(unsigned));
return ERROR_OK;
}
-// not good to use this
-extern void* cmd_queue_alloc(size_t size);
-extern void jtag_queue_command(jtag_command_t * cmd);
-
static int svf_run_command(struct command_context_s *cmd_ctx, char *cmd_str)
{
char *argus[256], command;
LOG_ERROR("fail to parse hex value");
return ERROR_FAIL;
}
- LOG_DEBUG("\t%s = 0x%X", argus[i], (**(int**)pbuffer_tmp) & ((1 << (xxr_para_tmp->len)) - 1));
+ LOG_DEBUG("\t%s = 0x%X", argus[i], (**(int**)pbuffer_tmp) & svf_get_mask_u32(xxr_para_tmp->len));
}
// If a command changes the length of the last scan of the same type and the MASK parameter is absent,
// the mask pattern used is all cares
}
buf_set_ones(xxr_para_tmp->mask, xxr_para_tmp->len);
}
+ // If TDO is absent, no comparison is needed, set the mask to 0
+ if (!(xxr_para_tmp->data_mask & XXR_TDO))
+ {
+ if (NULL == xxr_para_tmp->tdo)
+ {
+ if (ERROR_OK != svf_adjust_array_length(&xxr_para_tmp->tdo, i_tmp, xxr_para_tmp->len))
+ {
+ LOG_ERROR("fail to adjust length of array");
+ return ERROR_FAIL;
+ }
+ }
+ if (NULL == xxr_para_tmp->mask)
+ {
+ if (ERROR_OK != svf_adjust_array_length(&xxr_para_tmp->mask, i_tmp, xxr_para_tmp->len))
+ {
+ LOG_ERROR("fail to adjust length of array");
+ return ERROR_FAIL;
+ }
+ }
+ memset(xxr_para_tmp->mask, 0, (xxr_para_tmp->len + 7) >> 3);
+ }
// do scan if necessary
if (SDR == command)
{
field.tap = tap;
field.num_bits = i;
field.out_value = &svf_tdi_buffer[svf_buffer_index];
-
field.in_value = &svf_tdi_buffer[svf_buffer_index];
-
-
-
-
jtag_add_plain_dr_scan(1, &field, svf_para.dr_end_state);
svf_buffer_index += (i + 7) >> 3;
- last_state = svf_para.dr_end_state;
}
else if (SIR == command)
{
field.tap = tap;
field.num_bits = i;
field.out_value = &svf_tdi_buffer[svf_buffer_index];
-
field.in_value = &svf_tdi_buffer[svf_buffer_index];
-
-
-
-
jtag_add_plain_ir_scan(1, &field, svf_para.ir_end_state);
svf_buffer_index += (i + 7) >> 3;
- last_state = svf_para.ir_end_state;
}
break;
case PIO:
// TODO: do runtest
#if 1
// enter into run_state if necessary
- if (last_state != svf_para.runtest_run_state)
+ if (cmd_queue_cur_state != svf_para.runtest_run_state)
{
- jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
-
- jtag_queue_command(cmd);
-
- cmd->type = JTAG_STATEMOVE;
- cmd->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- cmd->cmd.statemove->end_state = svf_para.runtest_run_state;
-
- cmd_queue_end_state = cmd_queue_cur_state = cmd->cmd.statemove->end_state;
+ svf_add_statemove(svf_para.runtest_run_state);
}
// call jtag_add_clocks
jtag_add_clocks(run_count);
+ // move to end_state if necessary
if (svf_para.runtest_end_state != svf_para.runtest_run_state)
{
- // move to end_state
- jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
-
- jtag_queue_command(cmd);
- cmd->type = JTAG_STATEMOVE;
- cmd->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- cmd->cmd.statemove->end_state = svf_para.runtest_end_state;
-
- cmd_queue_end_state = cmd_queue_cur_state = cmd->cmd.statemove->end_state;
+ svf_add_statemove(svf_para.runtest_end_state);
}
- last_state = svf_para.runtest_end_state;
#else
if (svf_para.runtest_run_state != TAP_IDLE)
{
// last state MUST be stable state
// TODO: call path_move
jtag_add_pathmove(num_of_argu, path);
- last_state = path[num_of_argu - 1];
LOG_DEBUG("\tmove to %s by path_move", svf_tap_state_name[path[num_of_argu - 1]]);
}
else
if (svf_tap_state_is_stable(state))
{
// TODO: move to state
- jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
-
- jtag_queue_command(cmd);
-
- cmd->type = JTAG_STATEMOVE;
- cmd->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- cmd->cmd.statemove->end_state = state;
-
- cmd_queue_end_state = cmd_queue_cur_state = cmd->cmd.statemove->end_state;
- last_state = state;
-
- LOG_DEBUG("\tmove to %s by state_move", svf_tap_state_name[state]);
+ svf_add_statemove(state);
+
+ LOG_DEBUG("\tmove to %s by svf_add_statemove", svf_tap_state_name[state]);
}
else
{
switch (i_tmp)
{
case TRST_ON:
- last_state = TAP_RESET;
jtag_add_reset(1, 0);
break;
case TRST_Z:
int read_value;
memcpy(&read_value, svf_tdi_buffer, sizeof(int));
// in debug mode, data is from index 0
- int read_mask = (1 << (svf_check_tdo_para[0].bit_len)) - 1;
+ int read_mask = svf_get_mask_u32(svf_check_tdo_para[0].bit_len);
LOG_DEBUG("\tTDO read = 0x%X", read_value & read_mask);
}
}
projects / openocd / blobdiff