* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
/**
#include <helper/time_support.h>
#include "bitq.h"
-
/* PRESTO access library includes */
-#if BUILD_PRESTO_FTD2XX == 1
-#include <ftd2xx.h>
-#elif BUILD_PRESTO_LIBFTDI == 1
#include <ftdi.h>
-#else
-#error "BUG: either FTD2XX and LIBFTDI has to be used"
-#endif
/* -------------------------------------------------------------------------- */
#define BUFFER_SIZE (64*62)
struct presto {
-#if BUILD_PRESTO_FTD2XX == 1
- FT_HANDLE handle;
- FT_STATUS status;
-#elif BUILD_PRESTO_LIBFTDI == 1
struct ftdi_context ftdic;
int retval;
-#endif
char serial[FT_DEVICE_SERNUM_LEN];
int buff_out_pos;
uint8_t buff_in[BUFFER_SIZE];
- int buff_in_exp; /* expected in buffer length */
- int buff_in_len; /* length of data received */
+ int buff_in_exp;/* expected in buffer length */
+ int buff_in_len;/* length of data received */
int buff_in_pos;
unsigned long total_out;
unsigned long total_in;
- int jtag_tms; /* last tms state */
- int jtag_tck; /* last tck state */
- int jtag_rst; /* last trst state */
+ int jtag_tms; /* last tms state */
+ int jtag_tck; /* last tck state */
+ int jtag_rst; /* last trst state */
int jtag_tdi_data;
int jtag_tdi_count;
static struct presto presto_state;
static struct presto *presto = &presto_state;
-static uint8_t presto_init_seq[] =
-{
+static uint8_t presto_init_seq[] = {
0x80, 0xA0, 0xA8, 0xB0, 0xC0, 0xE0
};
static int presto_write(uint8_t *buf, uint32_t size)
{
-#if BUILD_PRESTO_FTD2XX == 1
- DWORD ftbytes;
- if ((presto->status = FT_Write(presto->handle, buf, size, &ftbytes)) != FT_OK)
- {
- LOG_ERROR("FT_Write returned: %lu", presto->status);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
-#elif BUILD_PRESTO_LIBFTDI == 1
uint32_t ftbytes;
- if ((presto->retval = ftdi_write_data(&presto->ftdic, buf, size)) < 0)
- {
+ presto->retval = ftdi_write_data(&presto->ftdic, buf, size);
+ if (presto->retval < 0) {
LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&presto->ftdic));
return ERROR_JTAG_DEVICE_ERROR;
}
ftbytes = presto->retval;
-#endif
- if (ftbytes != size)
- {
+ if (ftbytes != size) {
LOG_ERROR("couldn't write the requested number of bytes to PRESTO (%u < %u)",
- (unsigned)ftbytes, (unsigned)size);
+ (unsigned)ftbytes, (unsigned)size);
return ERROR_JTAG_DEVICE_ERROR;
}
return ERROR_OK;
}
-static int presto_read(uint8_t* buf, uint32_t size)
+static int presto_read(uint8_t *buf, uint32_t size)
{
-#if BUILD_PRESTO_FTD2XX == 1
- DWORD ftbytes;
- if ((presto->status = FT_Read(presto->handle, buf, size, &ftbytes)) != FT_OK)
- {
- LOG_ERROR("FT_Read returned: %lu", presto->status);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
-#elif BUILD_PRESTO_LIBFTDI == 1
uint32_t ftbytes = 0;
struct timeval timeout, now;
gettimeofday(&timeout, NULL);
- timeval_add_time(&timeout, 1, 0); /* one second timeout */
+ timeval_add_time(&timeout, 1, 0); /* one second timeout */
- while (ftbytes < size)
- {
- if ((presto->retval = ftdi_read_data(&presto->ftdic, buf + ftbytes, size - ftbytes)) < 0)
- {
+ while (ftbytes < size) {
+ presto->retval = ftdi_read_data(&presto->ftdic, buf + ftbytes, size - ftbytes);
+ if (presto->retval < 0) {
LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&presto->ftdic));
return ERROR_JTAG_DEVICE_ERROR;
}
ftbytes += presto->retval;
gettimeofday(&now, NULL);
- if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec > timeout.tv_usec)))
+ if (timeval_compare(&now, &timeout) > 0)
break;
}
-#endif
- if (ftbytes != size)
- {
- /* this is just a warning, there might have been timeout when detecting PRESTO, which is not fatal */
+ if (ftbytes != size) {
+ /* this is just a warning, there might have been timeout when detecting PRESTO,
+ *which is not fatal */
LOG_WARNING("couldn't read the requested number of bytes from PRESTO (%u < %u)",
- (unsigned)ftbytes, (unsigned)size);
+ (unsigned)ftbytes, (unsigned)size);
return ERROR_JTAG_DEVICE_ERROR;
}
return ERROR_OK;
}
-#if BUILD_PRESTO_FTD2XX == 1
-static int presto_open_ftd2xx(char *req_serial)
-{
- uint32_t i;
- DWORD numdevs;
- DWORD vidpid;
- char devname[FT_DEVICE_NAME_LEN];
- FT_DEVICE device;
-
- BYTE presto_data;
- DWORD ftbytes;
-
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
-
-#if IS_WIN32 == 0
- /* Add non-standard Vid/Pid to the linux driver */
- if ((presto->status = FT_SetVIDPID(PRESTO_VID, PRESTO_PID)) != FT_OK)
- {
- LOG_ERROR("couldn't add PRESTO VID/PID");
- exit(-1);
- }
-#endif
-
- if ((presto->status = FT_ListDevices(&numdevs, NULL, FT_LIST_NUMBER_ONLY)) != FT_OK)
- {
- LOG_ERROR("FT_ListDevices failed: %i", (int)presto->status);
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- LOG_DEBUG("FTDI devices available: %lu", numdevs);
- for (i = 0; i < numdevs; i++)
- {
- if ((presto->status = FT_Open(i, &(presto->handle))) != FT_OK)
- {
- /* this is not fatal, the device may be legitimately open by other process, hence debug message only */
- LOG_DEBUG("FT_Open failed: %i", (int)presto->status);
- continue;
- }
- LOG_DEBUG("FTDI device %i open", (int)i);
-
- if ((presto->status = FT_GetDeviceInfo(presto->handle, &device, &vidpid,
- presto->serial, devname, NULL)) == FT_OK)
- {
- if (vidpid == PRESTO_VID_PID
- && (req_serial == NULL || !strcmp(presto->serial, req_serial)))
- break;
- }
- else
- LOG_DEBUG("FT_GetDeviceInfo failed: %lu", presto->status);
-
- LOG_DEBUG("FTDI device %i does not match, closing", (int)i);
- FT_Close(presto->handle);
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
- }
-
- if (presto->handle == (FT_HANDLE)INVALID_HANDLE_VALUE)
- return ERROR_JTAG_DEVICE_ERROR; /* presto not open, return */
-
- if ((presto->status = FT_SetLatencyTimer(presto->handle, 1)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
-
- if ((presto->status = FT_SetTimeouts(presto->handle, 100, 0)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if ((presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0xD0;
- if ((presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- /* delay between first write/read turnaround (after purge?) necessary under Linux for unknown reason,
- probably a bug in library threading */
- usleep(100000);
- if ((presto->status = FT_Read(presto->handle, &presto_data, 1, &ftbytes)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if (ftbytes != 1)
- {
- LOG_DEBUG("PRESTO reset");
-
- if ((presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
- if ((presto->status = FT_SetBitMode(presto->handle, 0x80, 1)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
- if ((presto->status = FT_SetBaudRate(presto->handle, 9600)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0;
- for (i = 0; i < 4 * 62; i++)
- if ((presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- usleep(100000);
-
- if ((presto->status = FT_SetBitMode(presto->handle, 0x00, 0)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if ((presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- presto_data = 0xD0;
- if ((presto->status = FT_Write(presto->handle, &presto_data, 1, &ftbytes)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- /* delay between first write/read turnaround (after purge?) necessary under Linux for unknown reason,
- probably a bug in library threading */
- usleep(100000);
- if ((presto->status = FT_Read(presto->handle, &presto_data, 1, &ftbytes)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
- if (ftbytes != 1)
- {
- LOG_DEBUG("PRESTO not responding");
- return ERROR_JTAG_DEVICE_ERROR;
- }
- }
-
- if ((presto->status = FT_SetTimeouts(presto->handle, 0, 0)) != FT_OK)
- return ERROR_JTAG_DEVICE_ERROR;
-
-
- presto->status = FT_Write(presto->handle, &presto_init_seq, sizeof(presto_init_seq), &ftbytes);
- if (presto->status != FT_OK || ftbytes != sizeof(presto_init_seq))
- return ERROR_JTAG_DEVICE_ERROR;
-
- return ERROR_OK;
-}
-
-#elif BUILD_PRESTO_LIBFTDI == 1
static int presto_open_libftdi(char *req_serial)
{
uint8_t presto_data;
LOG_DEBUG("searching for PRESTO using libftdi");
/* initialize FTDI context structure */
- if (ftdi_init(&presto->ftdic) < 0)
- {
+ if (ftdi_init(&presto->ftdic) < 0) {
LOG_ERROR("unable to init libftdi: %s", presto->ftdic.error_str);
return ERROR_JTAG_DEVICE_ERROR;
}
/* context, vendor id, product id */
- if (ftdi_usb_open_desc(&presto->ftdic, PRESTO_VID, PRESTO_PID, NULL, req_serial) < 0)
- {
+ if (ftdi_usb_open_desc(&presto->ftdic, PRESTO_VID, PRESTO_PID, NULL, req_serial) < 0) {
LOG_ERROR("unable to open PRESTO: %s", presto->ftdic.error_str);
return ERROR_JTAG_DEVICE_ERROR;
}
- if (ftdi_usb_reset(&presto->ftdic) < 0)
- {
+ if (ftdi_usb_reset(&presto->ftdic) < 0) {
LOG_ERROR("unable to reset PRESTO device");
return ERROR_JTAG_DEVICE_ERROR;
}
- if (ftdi_set_latency_timer(&presto->ftdic, 1) < 0)
- {
+ if (ftdi_set_latency_timer(&presto->ftdic, 1) < 0) {
LOG_ERROR("unable to set latency timer");
return ERROR_JTAG_DEVICE_ERROR;
}
- if (ftdi_usb_purge_buffers(&presto->ftdic) < 0)
- {
+ if (ftdi_usb_purge_buffers(&presto->ftdic) < 0) {
LOG_ERROR("unable to purge PRESTO buffers");
return ERROR_JTAG_DEVICE_ERROR;
}
presto_data = 0xD0;
- if (presto_write(&presto_data, 1) != ERROR_OK)
- {
+ if (presto_write(&presto_data, 1) != ERROR_OK) {
LOG_ERROR("error writing to PRESTO");
return ERROR_JTAG_DEVICE_ERROR;
}
- if (presto_read(&presto_data, 1) != ERROR_OK)
- {
+ if (presto_read(&presto_data, 1) != ERROR_OK) {
LOG_DEBUG("no response from PRESTO, retrying");
if (ftdi_usb_purge_buffers(&presto->ftdic) < 0)
if (presto_write(&presto_data, 1) != ERROR_OK)
return ERROR_JTAG_DEVICE_ERROR;
- if (presto_read(&presto_data, 1) != ERROR_OK)
- {
+ if (presto_read(&presto_data, 1) != ERROR_OK) {
LOG_ERROR("no response from PRESTO, giving up");
return ERROR_JTAG_DEVICE_ERROR;
}
}
- if (presto_write(presto_init_seq, sizeof(presto_init_seq)) != ERROR_OK)
- {
+ if (presto_write(presto_init_seq, sizeof(presto_init_seq)) != ERROR_OK) {
LOG_ERROR("error writing PRESTO init sequence");
return ERROR_JTAG_DEVICE_ERROR;
}
return ERROR_OK;
}
-#endif /* BUILD_PRESTO_LIBFTDI == 1 */
static int presto_open(char *req_serial)
{
presto->jtag_speed = 0;
-#if BUILD_PRESTO_FTD2XX == 1
- return presto_open_ftd2xx(req_serial);
-#elif BUILD_PRESTO_LIBFTDI == 1
return presto_open_libftdi(req_serial);
-#endif
}
static int presto_close(void)
int result = ERROR_OK;
-#if BUILD_PRESTO_FTD2XX == 1
- unsigned long ftbytes;
-
- if (presto->handle == (FT_HANDLE)INVALID_HANDLE_VALUE)
- return result;
-
- presto->status = FT_Purge(presto->handle, FT_PURGE_TX | FT_PURGE_RX);
- if (presto->status != FT_OK)
+ presto->retval = ftdi_write_data(&presto->ftdic, presto_init_seq, sizeof(presto_init_seq));
+ if (presto->retval != sizeof(presto_init_seq))
result = ERROR_JTAG_DEVICE_ERROR;
- presto->status = FT_Write(presto->handle, &presto_init_seq, sizeof(presto_init_seq), &ftbytes);
- if (presto->status != FT_OK || ftbytes != sizeof(presto_init_seq))
- result = ERROR_JTAG_DEVICE_ERROR;
-
- if ((presto->status = FT_SetLatencyTimer(presto->handle, 16)) != FT_OK)
- result = ERROR_JTAG_DEVICE_ERROR;
-
- if ((presto->status = FT_Close(presto->handle)) != FT_OK)
- result = ERROR_JTAG_DEVICE_ERROR;
- else
- presto->handle = (FT_HANDLE)INVALID_HANDLE_VALUE;
-
-#elif BUILD_PRESTO_LIBFTDI == 1
-
- if ((presto->retval = ftdi_write_data(&presto->ftdic, presto_init_seq, sizeof(presto_init_seq))) != sizeof(presto_init_seq))
- result = ERROR_JTAG_DEVICE_ERROR;
-
- if ((presto->retval = ftdi_set_latency_timer(&presto->ftdic, 16)) < 0)
+ presto->retval = ftdi_set_latency_timer(&presto->ftdic, 16);
+ if (presto->retval < 0)
result = ERROR_JTAG_DEVICE_ERROR;
- if ((presto->retval = ftdi_usb_close(&presto->ftdic)) < 0)
+ presto->retval = ftdi_usb_close(&presto->ftdic);
+ if (presto->retval < 0)
result = ERROR_JTAG_DEVICE_ERROR;
else
ftdi_deinit(&presto->ftdic);
-#endif
return result;
}
if (presto->buff_out_pos == 0)
return ERROR_OK;
-#if BUILD_PRESTO_FTD2XX == 1
- if (presto->status != FT_OK)
-#elif BUILD_PRESTO_LIBFTDI == 1
- if (presto->retval < 0)
-#endif
- {
+ if (presto->retval < 0) {
LOG_DEBUG("error in previous communication, canceling I/O operation");
return ERROR_JTAG_DEVICE_ERROR;
}
- if (presto_write(presto->buff_out, presto->buff_out_pos) != ERROR_OK)
- {
+ if (presto_write(presto->buff_out, presto->buff_out_pos) != ERROR_OK) {
presto->buff_out_pos = 0;
return ERROR_JTAG_DEVICE_ERROR;
}
presto->buff_in_pos = 0;
presto->buff_in_len = 0;
- if (presto_read(presto->buff_in, presto->buff_in_exp) != ERROR_OK)
- {
+ if (presto_read(presto->buff_in, presto->buff_in_exp) != ERROR_OK) {
presto->buff_in_exp = 0;
return ERROR_JTAG_DEVICE_ERROR;
}
static int presto_sendbyte(int data)
{
- if (data == EOF) return presto_flush();
+ if (data == EOF)
+ return presto_flush();
- if (presto->buff_out_pos < BUFFER_SIZE)
- {
+ if (presto->buff_out_pos < BUFFER_SIZE) {
presto->buff_out[presto->buff_out_pos++] = (uint8_t)data;
- if (((data & 0xC0) == 0x40) || ((data & 0xD0)== 0xD0))
+ if (((data & 0xC0) == 0x40) || ((data & 0xD0) == 0xD0))
presto->buff_in_exp++;
- }
- else
+ } else
return ERROR_JTAG_DEVICE_ERROR;
-#if BUILD_PRESTO_FTD2XX == 1
- if (presto->buff_out_pos >= BUFFER_SIZE)
-#elif BUILD_PRESTO_LIBFTDI == 1
- /* libftdi does not do background read, be sure that USB IN buffer does not overflow (128 bytes only!) */
+ /* libftdi does not do background read, be sure that USB IN buffer does not overflow (128
+ *bytes only!) */
if (presto->buff_out_pos >= BUFFER_SIZE || presto->buff_in_exp == 128)
-#endif
return presto_flush();
return ERROR_OK;
if (presto->jtag_tdi_count == 0)
return 0;
- if (presto->jtag_tck == 0)
- {
+ if (presto->jtag_tck == 0) {
LOG_ERROR("BUG: unexpected TAP condition, TCK low");
return -1;
}
static int presto_tck_idle(void)
{
- if (presto->jtag_tck == 1)
- {
+ if (presto->jtag_tck == 1) {
presto_sendbyte(0xCA);
presto->jtag_tck = 0;
}
unsigned char cmd;
if (presto->jtag_tck == 0)
- {
- presto_sendbyte(0xA4); /* LED idicator - JTAG active */
- }
- else if (presto->jtag_speed == 0 && !tdo_req && tms == presto->jtag_tms)
- {
+ presto_sendbyte(0xA4); /* LED idicator - JTAG active */
+ else if (presto->jtag_speed == 0 && !tdo_req && tms == presto->jtag_tms) {
presto->jtag_tdi_data |= (tdi != 0) << presto->jtag_tdi_count;
if (++presto->jtag_tdi_count == 4)
cmd = tdi ? 0xCB : 0xCA;
presto_sendbyte(cmd);
- if (tms != presto->jtag_tms)
- {
+ if (tms != presto->jtag_tms) {
presto_sendbyte((tms ? 0xEC : 0xE8) | (presto->jtag_rst ? 0x02 : 0));
presto->jtag_tms = tms;
}
presto_tdi_flush();
presto_tck_idle();
- presto_sendbyte(0xA0); /* LED idicator - JTAG idle */
+ presto_sendbyte(0xA0); /* LED idicator - JTAG idle */
return presto_flush();
}
{
if (presto->buff_in_pos >= presto->buff_in_len)
return -1;
- if (presto->buff_in[presto->buff_in_pos++]&0x08) return 1;
+ if (presto->buff_in[presto->buff_in_pos++]&0x08)
+ return 1;
return 0;
}
presto_tdi_flush();
presto_tck_idle();
- if (us > 100000)
- {
+ if (us > 100000) {
presto_bitq_flush();
jtag_sleep(us);
return 0;
}
static struct bitq_interface presto_bitq = {
- .out = &presto_bitq_out,
- .flush = &presto_bitq_flush,
- .sleep = &presto_bitq_sleep,
- .reset = &presto_bitq_reset,
- .in_rdy = &presto_bitq_in_rdy,
- .in = &presto_bitq_in,
- };
+ .out = &presto_bitq_out,
+ .flush = &presto_bitq_flush,
+ .sleep = &presto_bitq_sleep,
+ .reset = &presto_bitq_reset,
+ .in_rdy = &presto_bitq_in_rdy,
+ .in = &presto_bitq_in,
+};
/* -------------------------------------------------------------------------- */
static int presto_adapter_khz(int khz, int *jtag_speed)
{
- if (khz < 0)
- {
+ if (khz < 0) {
*jtag_speed = 0;
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (khz >= 3000) *jtag_speed = 0;
- else *jtag_speed = (1000 + khz-1)/khz;
+ if (khz >= 3000)
+ *jtag_speed = 0;
+ else
+ *jtag_speed = (1000 + khz-1)/khz;
return 0;
}
static int presto_jtag_speed_div(int speed, int *khz)
{
- if ((speed < 0) || (speed > 1000))
- {
+ if ((speed < 0) || (speed > 1000)) {
*khz = 0;
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
- if (speed == 0) *khz = 3000;
- else *khz = 1000/speed;
+ if (speed == 0)
+ *khz = 3000;
+ else
+ *khz = 1000/speed;
return 0;
}
int khz;
if (presto_jtag_speed_div(speed, &khz))
- {
- return ERROR_INVALID_ARGUMENTS;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
presto->jtag_speed = speed;
COMMAND_HANDLER(presto_handle_serial_command)
{
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
if (presto_serial)
free(presto_serial);
presto_serial = strdup(CMD_ARGV[0]);
- }
- else
- {
- LOG_ERROR("expected exactly one argument to presto_serial <serial-number>");
- }
+ } else
+ return ERROR_COMMAND_SYNTAX_ERROR;
return ERROR_OK;
}
static int presto_jtag_init(void)
{
- if (presto_open(presto_serial) != ERROR_OK)
- {
+ if (presto_open(presto_serial) != ERROR_OK) {
presto_close();
if (presto_serial != NULL)
LOG_ERROR("Cannot open PRESTO, serial number '%s'", presto_serial);
}
LOG_INFO("PRESTO open, serial number '%s'", presto->serial);
- /* use JTAG speed setting from configuration file */
- presto_jtag_speed(jtag_get_speed());
-
bitq_interface = &presto_bitq;
return ERROR_OK;
}
presto_close();
LOG_INFO("PRESTO closed");
- if (presto_serial)
- {
+ if (presto_serial) {
free(presto_serial);
presto_serial = NULL;
}
struct jtag_interface presto_interface = {
.name = "presto",
+ .transports = jtag_only,
.commands = presto_command_handlers,
.execute_queue = bitq_execute_queue,
Code Review / openocd.git / blobdiff