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);
+
+/**
+ * Function ft2232_stableclocks
+ * will send out \a num_cycles on the TCK line while the TAP(s)
+ * are in a stable state. Calling code must ensure that current state is
+ * stable, that verification is not done in here.
+ * @param num_cycles is the count of clocks cycles to send.
+ * @return int - ERROR_OK or ERROR_JTAG_QUEUE_FAILED
+ */
+static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd);
+
+
char *ft2232_device_desc = NULL;
char *ft2232_serial = NULL;
char *ft2232_layout = NULL;
static struct ftdi_context ftdic;
#endif
+
+static jtag_command_t *first_unsent; /* next command that has to be sent */
+static int require_send;
+
static u8 *ft2232_buffer = NULL;
static int ft2232_buffer_size = 0;
static int ft2232_read_pointer = 0;
static int ft2232_expect_read = 0;
+
#define FT2232_BUFFER_SIZE 131072
#define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
#define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
-jtag_interface_t ft2232_interface =
+jtag_interface_t ft2232_interface =
{
.name = "ft2232",
.execute_queue = ft2232_execute_queue,
.speed = ft2232_speed,
.speed_div = ft2232_speed_div,
- .khz = ft2232_khz,
+ .khz = ft2232_khz,
.register_commands = ft2232_register_commands,
.init = ft2232_init,
.quit = ft2232_quit,
else
{
*bytes_written = dw_bytes_written;
- return ERROR_OK;
+ return ERROR_OK;
}
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
else
{
*bytes_written = retval;
- return ERROR_OK;
+ return ERROR_OK;
}
#endif
}
while ((*bytes_read < size) && timeout--)
{
- if ((status = FT_Read(ftdih, buf + *bytes_read, size -
- *bytes_read, &dw_bytes_read)) != FT_OK)
+ if ((status = FT_Read(ftdih, buf + *bytes_read, size -
+ *bytes_read, &dw_bytes_read)) != FT_OK)
{
- *bytes_read = 0;
+ *bytes_read = 0;
LOG_ERROR("FT_Read returned: %lu", status);
return ERROR_JTAG_DEVICE_ERROR;
}
- *bytes_read += dw_bytes_read;
+ *bytes_read += dw_bytes_read;
}
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
int timeout = 100;
*bytes_read = 0;
-
+
while ((*bytes_read < size) && timeout--)
{
if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size);
return ERROR_JTAG_DEVICE_ERROR;
}
-
+
return ERROR_OK;
}
buf[0] = 0x86; /* command "set divisor" */
buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=2.0MHz, ...*/
buf[2] = (speed >> 8) & 0xff; /* valueH */
-
+
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
int ft2232_speed_div(int speed, int *khz)
{
- /* Take a look in the FT2232 manual,
+ /* Take a look in the FT2232 manual,
* AN2232C-01 Command Processor for
* MPSSE and MCU Host Bus. Chapter 3.8 */
-
+
*khz = 6000 / (1+speed);
-
+
return ERROR_OK;
}
LOG_ERROR("RCLK not supported");
return ERROR_FAIL;
}
- /* Take a look in the FT2232 manual,
+ /* Take a look in the FT2232 manual,
* AN2232C-01 Command Processor for
* MPSSE and MCU Host Bus. Chapter 3.8
- *
+ *
* We will calc here with a multiplier
* of 10 for better rounding later. */
-
+
/* Calc speed, (6000 / khz) - 1 */
/* Use 65000 for better rounding */
*jtag_speed = (60000 / khz) - 10;
-
+
/* Add 0.9 for rounding */
*jtag_speed += 9;
-
+
/* Calc real speed */
*jtag_speed = *jtag_speed / 10;
-
+
/* Check if speed is greater than 0 */
if (*jtag_speed < 0)
{
*jtag_speed = 0;
}
-
+
/* Check max value */
if (*jtag_speed > 0xFFFF)
{
*jtag_speed = 0xFFFF;
}
-
+
return ERROR_OK;
}
void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
{
- int num_bytes = ((scan_size + 7) / 8);
+ int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
int cur_byte = 0;
int i;
char line[256];
char *line_p = line;
-
+
for (i = 0; i < ft2232_buffer_size; i++)
{
line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
line_p = line;
}
}
-
+
if (line_p != line)
LOG_DEBUG("%s", line);
}
int retval;
u32 bytes_written;
u32 bytes_read;
-
+
#ifdef _DEBUG_USB_IO_
struct timeval start, inter, inter2, end;
struct timeval d_inter, d_inter2, d_end;
#endif
#ifdef _DEBUG_USB_IO_
- gettimeofday(&start, NULL);
+ gettimeofday(&start, NULL);
#endif
if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
LOG_ERROR("couldn't write MPSSE commands to FT2232");
return retval;
}
-
+
#ifdef _DEBUG_USB_IO_
- gettimeofday(&inter, NULL);
+ gettimeofday(&inter, NULL);
#endif
-
+
if (ft2232_expect_read)
{
int timeout = 100;
ft2232_buffer_size = 0;
-
+
#ifdef _DEBUG_USB_IO_
- gettimeofday(&inter2, NULL);
+ gettimeofday(&inter2, NULL);
#endif
-
+
if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
{
LOG_ERROR("couldn't read from FT2232");
return retval;
}
-
+
#ifdef _DEBUG_USB_IO_
- gettimeofday(&end, NULL);
+ gettimeofday(&end, NULL);
timeval_subtract(&d_inter, &inter, &start);
timeval_subtract(&d_inter2, &inter2, &start);
timeval_subtract(&d_end, &end, &start);
- LOG_INFO("inter: %i.%i, inter2: %i.%i end: %i.%i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec);
+ LOG_INFO("inter: %i.%06i, inter2: %i.%06i end: %i.%06i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec);
#endif
-
-
+
+
ft2232_buffer_size = bytes_read;
-
+
if (ft2232_expect_read != ft2232_buffer_size)
{
LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
- ft2232_debug_dump_buffer();
+ ft2232_debug_dump_buffer();
exit(-1);
}
ft2232_expect_read = 0;
ft2232_read_pointer = 0;
-
+
/* return ERROR_OK, unless a jtag_read_buffer returns a failed check
* that wasn't handled by a caller-provided error handler
- */
+ */
retval = ERROR_OK;
-
+
cmd = first;
while (cmd != last)
{
}
cmd = cmd->next;
}
-
+
ft2232_buffer_size = 0;
return retval;
while (num_states)
{
int bit_count = 0;
-
+
int num_states_batch = num_states > 7 ? 7 : num_states;
tms_byte = 0x0;
BUFFER_ADD = 0x4b;
/* number of states remaining */
BUFFER_ADD = num_states_batch - 1;
-
+
while (num_states_batch--)
{
if (tap_transitions[cur_state].low == cmd->path[state_count])
buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
else
{
- LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", jtag_state_name(cur_state), jtag_state_name(cmd->path[state_count]));
exit(-1);
}
state_count++;
num_states--;
}
-
+
BUFFER_ADD = tms_byte;
}
-
+
end_state = cur_state;
}
int cur_byte = 0;
int last_bit;
- if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI))))
+ if (!((!ir_scan && (cur_state == TAP_DRSHIFT)) || (ir_scan && (cur_state == TAP_IRSHIFT))))
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* TMS data bits */
if (ir_scan)
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
- cur_state = TAP_SI;
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_IRSHIFT);
+ cur_state = TAP_IRSHIFT;
}
else
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
- cur_state = TAP_SD;
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_DRSHIFT);
+ cur_state = TAP_DRSHIFT;
}
/* LOG_DEBUG("added TMS scan (no read)"); */
}
-
+
/* add command for complete bytes */
while (num_bytes > 1)
{
bits_left -= 8 * (thisrun_bytes);
}
}
-
+
/* the most signifcant bit is scanned during TAP movement */
if (type != SCAN_IN)
last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
BUFFER_ADD = buffer[cur_byte];
}
- if ((ir_scan && (end_state == TAP_SI)) ||
- (!ir_scan && (end_state == TAP_SD)))
+ if ((ir_scan && (end_state == TAP_IRSHIFT)) ||
+ (!ir_scan && (end_state == TAP_DRSHIFT)))
{
if (type == SCAN_IO)
{
u32 bytes_read;
int retval;
int thisrun_read = 0;
-
+
if (cmd->ir_scan)
{
LOG_ERROR("BUG: large IR scans are not supported");
exit(-1);
}
- if (cur_state != TAP_SD)
+ if (cur_state != TAP_DRSHIFT)
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* scan 7 bit */
BUFFER_ADD = 0x6;
/* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
- cur_state = TAP_SD;
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_DRSHIFT);
+ cur_state = TAP_DRSHIFT;
}
-
+
if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
{
LOG_ERROR("couldn't write MPSSE commands to FT2232");
}
LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
ft2232_buffer_size = 0;
-
+
/* add command for complete bytes */
while (num_bytes > 1)
{
int thisrun_bytes;
-
+
if (type == SCAN_IO)
{
/* Clock Data Bytes In and Out LSB First */
}
LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
ft2232_buffer_size = 0;
-
+
if (type != SCAN_OUT)
{
if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
receive_pointer += bytes_read;
}
}
-
+
thisrun_read = 0;
-
+
/* the most signifcant bit is scanned during TAP movement */
if (type != SCAN_IN)
last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
BUFFER_ADD = bits_left - 2;
if (type != SCAN_IN)
BUFFER_ADD = buffer[cur_byte];
-
+
if (type != SCAN_OUT)
thisrun_read += 2;
}
- if (end_state == TAP_SD)
+ if (end_state == TAP_DRSHIFT)
{
if (type == SCAN_IO)
{
BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
cur_state = end_state;
}
-
+
if (type != SCAN_OUT)
thisrun_read += 1;
-
+
if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
{
LOG_ERROR("couldn't write MPSSE commands to FT2232");
}
LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
ft2232_buffer_size = 0;
-
+
if (type != SCAN_OUT)
{
if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
receive_pointer += bytes_read;
}
-
+
return ERROR_OK;
}
{
int predicted_size = 3;
int num_bytes = (scan_size - 1) / 8;
-
- if (cur_state != TAP_SD)
+
+ if (cur_state != TAP_DRSHIFT)
predicted_size += 3;
-
+
if (type == SCAN_IN) /* only from device to host */
{
/* complete bytes */
- predicted_size += (CEIL(num_bytes, 65536)) * 3;
+ predicted_size += CEIL(num_bytes, 65536) * 3;
/* remaining bits - 1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
}
else /* host to device, or bidirectional */
{
/* complete bytes */
- predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3;
+ predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3;
/* remaining bits -1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
}
int ft2232_predict_scan_in(int scan_size, enum scan_type type)
{
int predicted_size = 0;
-
+
if (type != SCAN_OUT)
{
/* complete bytes */
/* last bit (from TMS scan) */
predicted_size += 1;
}
-
+
/* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
return predicted_size;
else
low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
}
-
+
/* command "set data bits low byte" */
BUFFER_ADD = 0x80;
BUFFER_ADD = low_output;
else
high_output |= nSRSTnOE;
}
-
+
/* command "set data bits high byte" */
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
{
if (trst == 1)
{
- cur_state = TAP_TLR;
+ cur_state = TAP_RESET;
high_output &= ~nTRST;
}
else if (trst == 0)
void turtle_reset(int trst, int srst)
{
trst = trst;
-
+
if (srst == 1)
{
low_output |= nSRST;
{
low_output &= ~nSRST;
}
-
+
/* command "set data bits low byte" */
BUFFER_ADD = 0x80;
BUFFER_ADD = low_output;
{
high_output |= nSRST;
}
-
+
/* command "set data bits high byte" */
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
{
low_output |= nSRST;
}
-
+
/* command "set data bits low byte" */
BUFFER_ADD = 0x80;
BUFFER_ADD = low_output;
BUFFER_ADD = low_direction;
-
+
/* command "set data bits high byte" */
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
int ft2232_execute_queue()
{
jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
- jtag_command_t *first_unsent = cmd; /* next command that has to be sent */
u8 *buffer;
int scan_size; /* size of IR or DR scan */
enum scan_type type;
int i;
int predicted_size = 0;
- int require_send = 0;
int retval;
-
+
+ first_unsent = cmd; /* next command that has to be sent */
+ require_send = 0;
+
/* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
* that wasn't handled by a caller-provided error handler
- */
+ */
retval = ERROR_OK;
ft2232_buffer_size = 0;
ft2232_expect_read = 0;
-
+
/* blink, if the current layout has that feature */
if (layout->blink)
layout->blink();
if (cmd->cmd.end_state->end_state != -1)
ft2232_end_state(cmd->cmd.end_state->end_state);
break;
+
case JTAG_RESET:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST)))
{
- cur_state = TAP_TLR;
+ cur_state = TAP_RESET;
}
layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
require_send = 1;
-
-#ifdef _DEBUG_JTAG_IO_
+
+#ifdef _DEBUG_JTAG_IO_
LOG_DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
#endif
break;
+
case JTAG_RUNTEST:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 0;
- if (cur_state != TAP_RTI)
+ if (cur_state != TAP_IDLE)
predicted_size += 3;
predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
- if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_RTI))
+ if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_IDLE))
predicted_size += 3;
- if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
+ if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_IDLE))
predicted_size += 3;
if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
require_send = 0;
first_unsent = cmd;
}
- if (cur_state != TAP_RTI)
+ if (cur_state != TAP_IDLE)
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* scan 7 bit */
BUFFER_ADD = 0x6;
/* TMS data bits */
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_RTI);
- cur_state = TAP_RTI;
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_IDLE);
+ cur_state = TAP_IDLE;
require_send = 1;
}
i = cmd->cmd.runtest->num_cycles;
BUFFER_ADD = (i > 7) ? 6 : (i - 1);
/* TMS data bits */
BUFFER_ADD = 0x0;
- cur_state = TAP_RTI;
+ cur_state = TAP_IDLE;
i -= (i > 7) ? 7 : i;
/* LOG_DEBUG("added TMS scan (no read)"); */
}
/* LOG_DEBUG("added TMS scan (no read)"); */
}
require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("runtest: %i, end in %s", cmd->cmd.runtest->num_cycles, jtag_state_name(end_state));
#endif
break;
+
case JTAG_STATEMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
/* LOG_DEBUG("added TMS scan (no read)"); */
cur_state = end_state;
require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("statemove: %i", end_state);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("statemove: %s", jtag_state_name(end_state));
#endif
break;
+
case JTAG_PATHMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
}
ft2232_add_pathmove(cmd->cmd.pathmove);
require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("pathmove: %i states, end in %s", cmd->cmd.pathmove->num_states,
+ jtag_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]));
#endif
break;
+
case JTAG_SCAN:
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
type = jtag_scan_type(cmd->cmd.scan);
if (first_unsent != cmd)
if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
retval = ERROR_JTAG_QUEUE_FAILED;
-
+
/* current command */
if (cmd->cmd.scan->end_state != -1)
ft2232_end_state(cmd->cmd.scan->end_state);
require_send = 1;
if (buffer)
free(buffer);
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("%s scan, %i bits, end in %s", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
+ jtag_state_name(end_state));
#endif
break;
+
case JTAG_SLEEP:
if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
retval = ERROR_JTAG_QUEUE_FAILED;
first_unsent = cmd->next;
jtag_sleep(cmd->cmd.sleep->us);
-#ifdef _DEBUG_JTAG_IO_
- LOG_DEBUG("sleep %i usec", cmd->cmd.sleep->us);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("sleep %i usec while in %s", cmd->cmd.sleep->us, jtag_state_name(cur_state));
+#endif
+ break;
+
+ case JTAG_STABLECLOCKS:
+ /* "if (tap_move_map[cur_state] != -1)" is of no help when cur_state==TAP_IDLE */
+ switch(cur_state)
+ {
+ case TAP_DRSHIFT:
+ case TAP_IDLE:
+ case TAP_RESET:
+ case TAP_DRPAUSE:
+ case TAP_IRSHIFT:
+ case TAP_IRPAUSE:
+ break; /* above stable states are OK */
+ default:
+ LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
+ jtag_state_name(cur_state) );
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+
+ if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("clocks %i while in %s", cmd->cmd.stableclocks->num_cycles, jtag_state_name(cur_state));
#endif
break;
+
default:
LOG_ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
ft2232_device_desc = NULL;
}
-
+
if (ft2232_device_desc)
{
openex_string = ft2232_device_desc;
{
LOG_ERROR("neither device description nor serial number specified");
LOG_ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
-
- return ERROR_JTAG_INIT_FAILED;
+
+ return ERROR_JTAG_INIT_FAILED;
}
if ((status = FT_OpenEx(openex_string, openex_flags, &ftdih)) != FT_OK)
{
DWORD num_devices;
-
+
if (more) {
LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
*try_more = 1;
{
LOG_ERROR("ListDevices: %lu\n", num_devices);
for (i = 0; i < num_devices; i++)
- LOG_ERROR("%i: %s", i, desc_array[i]);
+ LOG_ERROR("%i: \"%s\"", i, desc_array[i]);
}
-
+
for (i = 0; i < num_devices; i++)
free(desc_array[i]);
free(desc_array);
LOG_ERROR("unable to set latency timer: %lu", status);
return ERROR_JTAG_INIT_FAILED;
}
-
+
if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
{
LOG_ERROR("unable to get latency timer: %lu", status);
{
LOG_DEBUG("current latency timer: %i", latency_timer);
}
-
+
if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
{
LOG_ERROR("unable to set timeouts: %lu", status);
LOG_ERROR("unable to set latency timer");
return ERROR_JTAG_INIT_FAILED;
}
-
+
if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
{
LOG_ERROR("unable to get latency timer");
u32 bytes_written;
ft2232_layout_t *cur_layout = ft2232_layouts;
int i;
-
+
if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
ft2232_layout = "usbjtag";
LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
-
+
while (cur_layout->name)
{
if (strcmp(cur_layout->name, ft2232_layout) == 0)
LOG_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
#elif BUILD_FT2232_LIBFTDI == 1
retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
more, &try_more);
-#endif
+#endif
if (retval >= 0)
break;
if (!more || !try_more)
return ft2232_purge_ftd2xx();
#elif BUILD_FT2232_LIBFTDI == 1
return ft2232_purge_libftdi();
-#endif
+#endif
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x0b;
-
+
if (strcmp(ft2232_layout, "usbjtag") == 0)
{
nTRST = 0x10;
else
{
LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
- return ERROR_JTAG_INIT_FAILED;
+ return ERROR_JTAG_INIT_FAILED;
}
-
+
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
low_direction &= ~nTRSTnOE; /* nTRST input */
low_direction |= nTRSTnOE; /* nTRST output */
low_output |= nTRST; /* nTRST = 1 */
}
-
+
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
low_direction |= nSRSTnOE; /* nSRST output */
low_direction &= ~nSRSTnOE; /* nSRST input */
low_output &= ~nSRST; /* nSRST = 0 */
}
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
return ERROR_JTAG_INIT_FAILED;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x2b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
nTRST = 0x08;
nTRSTnOE = 0x0; /* No output enable for TRST*/
nSRST = 0x04;
- nSRSTnOE = 0x0; /* No output enable for SRST*/
+ nSRSTnOE = 0x0; /* No output enable for SRST*/
}
else
{
LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
exit(-1);
}
-
+
high_output = 0x0;
high_direction = 0x0c;
{
high_output |= nSRST;
}
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x1b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
if (strcmp(layout->name, "jtagkey") == 0)
{
nTRST = 0x01;
LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
exit(-1);
}
-
+
high_output = 0x0;
high_direction = 0x0f;
high_output &= ~nTRSTnOE;
high_output |= nTRST;
}
-
+
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
high_output &= ~nSRSTnOE;
high_output |= nSRSTnOE;
high_output &= ~nSRST;
}
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x1b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
nTRST = 0x01;
nTRSTnOE = 0x4;
nSRST = 0x02;
high_output &= ~nTRSTnOE;
high_output |= nTRST;
}
-
+
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
{
high_output &= ~nSRST;
}
-
+
/* turn red LED on */
high_output |= 0x08;
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x18;
low_direction = 0xfb;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
nTRST = 0x10;
nTRSTnOE = 0x0; /* not output enable for nTRST */
nSRST = 0x20;
/* turn red LED1 on, LED2 off */
high_output |= 0x08;
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output; /* value */
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x5b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
nSRST = 0x40;
-
+
high_output = 0x00;
high_direction = 0x0C;
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output;
buf[2] = high_direction;
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x08;
low_direction = 0x0b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
nTRST = 0x01;
nTRSTnOE = 0x00; /* no output enable for nTRST */
nSRST = 0x02;
nSRSTnOE = 0x00; /* no output enable for nSRST */
-
+
high_output = 0x03;
high_direction = 0x03;
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output;
buf[2] = high_direction;
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
{
u8 buf[3];
u32 bytes_written;
-
+
low_output = 0x88;
low_direction = 0x8b;
-
+
/* initialize low byte for jtag */
buf[0] = 0x80; /* command "set data bits low byte" */
buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
nTRST = 0x01;
nTRSTnOE = 0x00; /* no output enable for nTRST */
nSRST = 0x80;
nSRSTnOE = 0x00; /* no output enable for nSRST */
-
+
high_output = 0x01;
high_direction = 0x03;
-
+
/* initialize high port */
buf[0] = 0x82; /* command "set data bits high byte" */
buf[1] = high_output;
buf[2] = high_direction;
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
- LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
+
return ERROR_OK;
}
/* set port pin low */
high_output |= 0x08;
}
-
+
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
BUFFER_ADD = high_direction;
void turtle_jtag_blink(void)
{
- /*
+ /*
* Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
*/
if (high_output & 0x08)
{
high_output = 0x08;
}
-
+
BUFFER_ADD = 0x82;
BUFFER_ADD = high_output;
BUFFER_ADD = high_direction;
status = FT_Close(ftdih);
#elif BUILD_FT2232_LIBFTDI == 1
ftdi_disable_bitbang(&ftdic);
-
+
ftdi_usb_close(&ftdic);
-
+
ftdi_deinit(&ftdic);
#endif
{
LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
}
-
+
return ERROR_OK;
}
{
LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
}
-
+
return ERROR_OK;
}
{
LOG_ERROR("expected exactly one argument to ft2232_latency <ms>");
}
-
+
return ERROR_OK;
}
+
+
+static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd)
+{
+ int retval = 0;
+
+ while (num_cycles > 0)
+ {
+ /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
+ * at most 7 bits per invocation. Here we invoke it potentially
+ * several times.
+ */
+ int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
+
+ if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+
+ first_unsent = cmd;
+ }
+
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+
+ /* scan 7 bit */
+ BUFFER_ADD = bitcount_per_command - 1;
+
+ /* TMS data bits are all zeros to stay in the current stable state */
+ BUFFER_ADD = 0x0;
+
+ require_send = 1;
+
+ num_cycles -= bitcount_per_command;
+ }
+
+ return retval;
+}
+
projects / fw / openocd / blobdiff