diff options
Diffstat (limited to 'src/jtag/drivers/ftdi.c')
| -rw-r--r-- | src/jtag/drivers/ftdi.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/jtag/drivers/ftdi.c b/src/jtag/drivers/ftdi.c index be02d209..9d344473 100644 --- a/src/jtag/drivers/ftdi.c +++ b/src/jtag/drivers/ftdi.c @@ -740,6 +740,19 @@ COMMAND_HANDLER(ftdi_handle_layout_signal_command) } else if (strcmp("-noe", CMD_ARGV[i]) == 0) { invert_oe = true; COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i + 1], oe_mask); + } else if (!strcmp("-alias", CMD_ARGV[i]) || + !strcmp("-nalias", CMD_ARGV[i])) { + if (!strcmp("-nalias", CMD_ARGV[i])) + invert_data = true; + struct signal *sig = find_signal_by_name(CMD_ARGV[i + 1]); + if (!sig) { + LOG_ERROR("signal %s is not defined", CMD_ARGV[i + 1]); + return ERROR_FAIL; + } + data_mask = sig->data_mask; + oe_mask = sig->oe_mask; + invert_oe = sig->invert_oe; + invert_data ^= sig->invert_data; } else { LOG_ERROR("unknown option '%s'", CMD_ARGV[i]); return ERROR_COMMAND_SYNTAX_ERROR; @@ -869,7 +882,7 @@ static const struct command_registration ftdi_command_handlers[] = { .mode = COMMAND_ANY, .help = "define a signal controlled by one or more FTDI GPIO as data " "and/or output enable", - .usage = "name [-data mask|-ndata mask] [-oe mask|-noe mask]", + .usage = "name [-data mask|-ndata mask] [-oe mask|-noe mask] [-alias|-nalias name]", }, { .name = "ftdi_set_signal", |