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-rw-r--r--src/jtag/drivers/ft2232.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c
index 6758dc7..9a40ed9 100644
--- a/src/jtag/drivers/ft2232.c
+++ b/src/jtag/drivers/ft2232.c
@@ -156,6 +156,7 @@ static char *ft2232_device_desc;
static char *ft2232_serial;
static uint8_t ft2232_latency = 2;
static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK;
+static int ft2232_channel = INTERFACE_ANY;
#define MAX_USB_IDS 8
/* vid = pid = 0 marks the end of the list */
@@ -2358,7 +2359,7 @@ static int ft2232_init(void)
more, &try_more);
#elif BUILD_FT2232_LIBFTDI == 1
retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
- more, &try_more, layout->channel);
+ more, &try_more, ft2232_channel);
#endif
if (retval >= 0)
break;
@@ -3203,6 +3204,7 @@ COMMAND_HANDLER(ft2232_handle_layout_command)
for (const struct ft2232_layout *l = ft2232_layouts; l->name; l++) {
if (strcmp(l->name, CMD_ARGV[0]) == 0) {
layout = l;
+ ft2232_channel = l->channel;
return ERROR_OK;
}
}
@@ -3251,6 +3253,18 @@ COMMAND_HANDLER(ft2232_handle_latency_command)
return ERROR_OK;
}
+COMMAND_HANDLER(ft2232_handle_channel_command)
+{
+ if (CMD_ARGC == 1) {
+ ft2232_channel = atoi(CMD_ARGV[0]);
+ if (ft2232_channel < 0 || ft2232_channel > 4)
+ LOG_ERROR("ft2232_channel must be in the 0 to 4 range");
+ } else
+ LOG_ERROR("expected exactly one argument to ft2232_channel <ch>");
+
+ return ERROR_OK;
+}
+
static int ft2232_stableclocks(int num_cycles, struct jtag_command *cmd)
{
int retval = 0;
@@ -4258,6 +4272,13 @@ static const struct command_registration ft2232_command_handlers[] = {
.help = "set the FT2232 latency timer to a new value",
.usage = "value",
},
+ {
+ .name = "ft2232_channel",
+ .handler = &ft2232_handle_channel_command,
+ .mode = COMMAND_CONFIG,
+ .help = "set the FT2232 channel to a new value",
+ .usage = "value",
+ },
COMMAND_REGISTRATION_DONE
};