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Add extra debug output. 

This probably shouldn't be in the final change list.
This commit is contained in:
Tim Newsome 2016-05-31 12:12:02 -07:00
parent 3b60c3aa42
commit ae74097f39
1 changed files with 27 additions and 0 deletions
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27
src/jtag/drivers/ftdi.c
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@ -430,10 +430,32 @@ static void ftdi_execute_pathmove(struct jtag_command *cmd)
tap_set_end_state(tap_get_state()); tap_set_end_state(tap_get_state());
} }
#ifdef _DEBUG_JTAG_IO_
static void debug_jtag_io_value(const char *prefix, const uint8_t *value,
unsigned int num_bits)
{
if (!value) {
return;
}
char buf[80];
unsigned int chars = (num_bits + 3) / 4;
for (unsigned int i = 0; i < chars && i < 79; i++) {
int start_bit = 4 * (chars - i - 1);
sprintf(buf + i, "%01x", buf_get_u32(value, start_bit, 4));
}
DEBUG_JTAG_IO(" %s%s", prefix, buf);
}
#endif
static void ftdi_execute_scan(struct jtag_command *cmd) static void ftdi_execute_scan(struct jtag_command *cmd)
{ {
DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN",
jtag_scan_type(cmd->cmd.scan)); jtag_scan_type(cmd->cmd.scan));
#ifdef _DEBUG_JTAG_IO_
debug_jtag_io_value(" out=", cmd->cmd.scan->fields->out_value,
cmd->cmd.scan->fields->num_bits);
#endif
/* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */ /* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */
while (cmd->cmd.scan->num_fields > 0 while (cmd->cmd.scan->num_fields > 0
@ -515,6 +537,11 @@ static void ftdi_execute_scan(struct jtag_command *cmd)
DEBUG_JTAG_IO("%s scan, %i bits, end in %s", DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
(cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
tap_state_name(tap_get_end_state())); tap_state_name(tap_get_end_state()));
#ifdef _DEBUG_JTAG_IO_
debug_jtag_io_value(" in=", cmd->cmd.scan->fields->in_value,
cmd->cmd.scan->fields->num_bits);
#endif
} }
static void ftdi_execute_reset(struct jtag_command *cmd) static void ftdi_execute_reset(struct jtag_command *cmd)