This adds -alias|-nalias options to ftdi_layout_signal command that
allow to declare a new signal based on an already defined one.
Change-Id: I552578ebcd12ae21957a1c0d3b7e878adeff6df0
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2181
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
and initially asserted reset signals.
@end deffn
and initially asserted reset signals.
@end deffn
-@deffn {Config Command} {ftdi_layout_signal} name [@option{-data}|@option{-ndata} data_mask] [@option{-oe}|@option{-noe} oe_mask]
+@deffn {Config Command} {ftdi_layout_signal} name [@option{-data}|@option{-ndata} data_mask] [@option{-oe}|@option{-noe} oe_mask] [@option{-alias}|@option{-nalias} name]
Creates a signal with the specified @var{name}, controlled by one or more FTDI
GPIO pins via a range of possible buffer connections. The masks are FTDI GPIO
register bitmasks to tell the driver the connection and type of the output
Creates a signal with the specified @var{name}, controlled by one or more FTDI
GPIO pins via a range of possible buffer connections. The masks are FTDI GPIO
register bitmasks to tell the driver the connection and type of the output
input as necessary to provide the full set of low, high and Hi-Z
characteristics. In all other cases, the pins specified in a signal definition
are always driven by the FTDI.
input as necessary to provide the full set of low, high and Hi-Z
characteristics. In all other cases, the pins specified in a signal definition
are always driven by the FTDI.
+
+If @option{-alias} or @option{-nalias} is used, the signal is created
+identical (or with data inverted) to an already specified signal
+@var{name}.
@end deffn
@deffn {Command} {ftdi_set_signal} name @option{0}|@option{1}|@option{z}
@end deffn
@deffn {Command} {ftdi_set_signal} name @option{0}|@option{1}|@option{z}
} else if (strcmp("-noe", CMD_ARGV[i]) == 0) {
invert_oe = true;
COMMAND_PARSE_NUMBER(u16, CMD_ARGV[i + 1], oe_mask);
} 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;
} else {
LOG_ERROR("unknown option '%s'", CMD_ARGV[i]);
return ERROR_COMMAND_SYNTAX_ERROR;
.mode = COMMAND_ANY,
.help = "define a signal controlled by one or more FTDI GPIO as data "
"and/or output enable",
.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",
},
{
.name = "ftdi_set_signal",
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