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- added ft2232_latency command 

git-svn-id: svn://svn.berlios.de/openocd/trunk@205 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
mlu 2007-09-10 17:07:32 +00:00
parent 6ae83f5cf8
commit b3c593da0f
1 changed files with 21 additions and 2 deletions
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23
src/jtag/ft2232.c
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@ -73,10 +73,12 @@ int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *c
int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
char *ft2232_device_desc = NULL;
char *ft2232_serial = NULL;
char *ft2232_layout = NULL;
unsigned char ft2232_latency = 2;
#define MAX_USB_IDS 8
/* vid = pid = 0 marks the end of the list */
@ -272,6 +274,8 @@ int ft2232_register_commands(struct command_context_s *cmd_ctx)
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
COMMAND_CONFIG, NULL);
return ERROR_OK;
}
@ -1369,7 +1373,7 @@ static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
return ERROR_JTAG_INIT_FAILED;
}
if ((status = FT_SetLatencyTimer(ftdih, 2)) != FT_OK)
if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK)
{
ERROR("unable to set latency timer: %lu", status);
return ERROR_JTAG_INIT_FAILED;
@ -1449,7 +1453,7 @@ static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more)
return ERROR_JTAG_INIT_FAILED;
}
if (ftdi_set_latency_timer(&ftdic, 2) < 0)
if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
{
ERROR("unable to set latency timer");
return ERROR_JTAG_INIT_FAILED;
@ -2039,3 +2043,18 @@ int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd,
return ERROR_OK;
}
int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 1)
{
ft2232_latency = atoi(args[0]);
}
else
{
ERROR("expected exactly one argument to ft2232_latency <ms>");
}
return ERROR_OK;
}