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- allow multiple USB vendor and product ids when searching for connected FT2232 based JTAG interfaces (thanks to Werner Almesberger for this patch) 

git-svn-id: svn://svn.berlios.de/openocd/trunk@140 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.1.0
drath 17 years ago
parent
999f86b92b
commit
c62e5b4c23
1 changed files with 145 additions and 62 deletions
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  1. +145
    -62
      src/jtag/ft2232.c

+ 145
- 62
src/jtag/ft2232.c View File

@@ -77,8 +77,11 @@ int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd,
char *ft2232_device_desc = NULL;
char *ft2232_serial = NULL;
char *ft2232_layout = NULL;
u16 ft2232_vid = 0x0403;
u16 ft2232_pid = 0x6010;

#define MAX_USB_IDS 8
/* vid = pid = 0 marks the end of the list */
static u16 ft2232_vid[MAX_USB_IDS+1] = { 0x0403, 0 };
static u16 ft2232_pid[MAX_USB_IDS+1] = { 0x6010, 0 };

typedef struct ft2232_layout_s
{
@@ -1227,55 +1230,23 @@ int ft2232_execute_queue()
return ERROR_OK;
}

int ft2232_init(void)
{
u8 latency_timer;
u8 buf[1];
int retval;
u32 bytes_written;
#if BUILD_FT2232_FTD2XX == 1
static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
{
FT_STATUS status;
DWORD openex_flags = 0;
char *openex_string = NULL;
#endif

ft2232_layout_t *cur_layout = ft2232_layouts;
if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
ft2232_layout = "usbjtag";
WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
while (cur_layout->name)
{
if (strcmp(cur_layout->name, ft2232_layout) == 0)
{
layout = cur_layout;
break;
}
cur_layout++;
}
u8 latency_timer;

if (!layout)
{
ERROR("No matching layout found for %s", ft2232_layout);
return ERROR_JTAG_INIT_FAILED;
}
#if BUILD_FT2232_FTD2XX == 1
DEBUG("'ft2232' interface using FTD2XX with '%s' layout", ft2232_layout);
#elif BUILD_FT2232_LIBFTDI == 1
DEBUG("'ft2232' interface using libftdi with '%s' layout", ft2232_layout);
#endif
DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
ft2232_layout, vid, pid);

#if BUILD_FT2232_FTD2XX == 1
#if IS_WIN32 == 0
/* Add non-standard Vid/Pid to the linux driver */
if ((status = FT_SetVIDPID(ft2232_vid, ft2232_pid)) != FT_OK)
if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
{
WARNING("couldn't add %4.4x:%4.4x", ft2232_vid, ft2232_pid);
WARNING("couldn't add %4.4x:%4.4x",
vid, pid);
}
#endif

@@ -1307,6 +1278,12 @@ int ft2232_init(void)
{
DWORD num_devices;
if (more) {
WARNING("unable to open ftdi device (trying more): %lu",
status);
*try_more = 1;
return ERROR_JTAG_INIT_FAILED;
}
ERROR("unable to open ftdi device: %lu", status);
status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
if (status == FT_OK)
@@ -1365,14 +1342,44 @@ int ft2232_init(void)
ERROR("unable to enable bit i/o mode: %lu", status);
return ERROR_JTAG_INIT_FAILED;
}
#elif BUILD_FT2232_LIBFTDI == 1

return ERROR_OK;
}

static int ft2232_purge_ftd2xx(void)
{
FT_STATUS status;

if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
{
ERROR("error purging ftd2xx device: %lu", status);
return ERROR_JTAG_INIT_FAILED;
}

return ERROR_OK;
}
#endif /* BUILD_FT2232_FTD2XX == 1 */

#if BUILD_FT2232_LIBFTDI == 1
static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more)
{
u8 latency_timer;

DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
ft2232_layout, vid, pid);

if (ftdi_init(&ftdic) < 0)
return ERROR_JTAG_INIT_FAILED;

/* context, vendor id, product id */
if (ftdi_usb_open_desc(&ftdic, ft2232_vid, ft2232_pid, ft2232_device_desc, ft2232_serial) < 0)
{
ERROR("unable to open ftdi device: %s", ftdic.error_str);
if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
ft2232_serial) < 0) {
if (more)
WARNING("unable to open ftdi device (trying more): %s",
ftdic.error_str);
else
ERROR("unable to open ftdi device: %s", ftdic.error_str);
*try_more = 1;
return ERROR_JTAG_INIT_FAILED;
}

@@ -1405,7 +1412,77 @@ int ft2232_init(void)
}

ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */

return ERROR_OK;
}

static int ft2232_purge_libftdi(void)
{
if (ftdi_usb_purge_buffers(&ftdic) < 0)
{
ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}

return ERROR_OK;
}
#endif /* BUILD_FT2232_LIBFTDI == 1 */

int ft2232_init(void)
{
u8 buf[1];
int retval;
u32 bytes_written;
ft2232_layout_t *cur_layout = ft2232_layouts;
int i;
if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
ft2232_layout = "usbjtag";
WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
while (cur_layout->name)
{
if (strcmp(cur_layout->name, ft2232_layout) == 0)
{
layout = cur_layout;
break;
}
cur_layout++;
}

if (!layout)
{
ERROR("No matching layout found for %s", ft2232_layout);
return ERROR_JTAG_INIT_FAILED;
}
for (i = 0; 1; i++) {
/*
* "more indicates that there are more IDs to try, so we should
* not print an error for an ID mismatch (but for anything
* else, we should).
*
* try_more indicates that the error code returned indicates an
* ID mismatch (and nothing else) and that we should proceeed
* with the next ID pair.
*/
int more = ft2232_vid[i+1] || ft2232_pid[i+1];
int try_more = 0;

#if BUILD_FT2232_FTD2XX == 1
retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
more, &try_more);
#elif BUILD_FT2232_LIBFTDI == 1
retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
more, &try_more);
#endif
if (retval >= 0)
break;
if (!more || !try_more)
return retval;
}

ft2232_buffer_size = 0;
ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
@@ -1423,17 +1500,9 @@ int ft2232_init(void)
}

#if BUILD_FT2232_FTD2XX == 1
if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
{
ERROR("error purging ftd2xx device: %lu", status);
return ERROR_JTAG_INIT_FAILED;
}
return ft2232_purge_ftd2xx();
#elif BUILD_FT2232_LIBFTDI == 1
if (ftdi_usb_purge_buffers(&ftdic) < 0)
{
ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}
return ft2232_purge_libftdi();
#endif

return ERROR_OK;
@@ -1847,15 +1916,29 @@ int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, c

int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc >= 2)
{
ft2232_vid = strtol(args[0], NULL, 0);
ft2232_pid = strtol(args[1], NULL, 0);
int i;

if (argc > MAX_USB_IDS*2) {
WARNING("ignoring extra IDs in ft2232_vid_pid "
"(maximum is %d pairs)", MAX_USB_IDS);
argc = MAX_USB_IDS*2;
}
else
if (argc < 2 || (argc & 1))
{
WARNING("incomplete ft2232_vid_pid configuration directive");
if (argc < 2)
return ERROR_OK;
}

for (i = 0; i+1 < argc; i += 2) {
ft2232_vid[i >> 1] = strtol(args[i], NULL, 0);
ft2232_pid[i >> 1] = strtol(args[i+1], NULL, 0);
}
/*
* Explicitly terminate, in case there are multiples instances of
* ft2232_vid_pid.
*/
ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;

return ERROR_OK;
}

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