/***************************************************************************
- * Copyright (C) 2004, 2006 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * 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. *
- ***************************************************************************/
+* Copyright (C) 2004, 2006 by Dominic Rath *
+* Dominic.Rath@gmx.de *
+* *
+* Copyright (C) 2008 by Spencer Oliver *
+* spen@spen-soft.co.uk *
+* *
+* This program is free software; you can redistribute it and/or modify *
+* it under the terms of the GNU General Public License as published by *
+* the Free Software Foundation; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+* This program is distributed in the hope that it will be useful, *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+* 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. *
+***************************************************************************/
+
+
+/* This code uses information contained in the MPSSE specification which was
+ * found here:
+ * http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
+ * Hereafter this is called the "MPSSE Spec".
+ */
+
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#if IS_CYGWIN == 1
-#include "windows.h"
-#undef ERROR
-#endif
-
-#include "replacements.h"
-
/* project specific includes */
-#include "log.h"
-#include "types.h"
#include "jtag.h"
-#include "configuration.h"
#include "time_support.h"
-/* system includes */
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
+#if IS_CYGWIN == 1
+#include <windows.h>
+#endif
+
/* FT2232 access library includes */
#if BUILD_FT2232_FTD2XX == 1
#include <ftdi.h>
#endif
-#include <sys/time.h>
-#include <time.h>
-
-/* enable this to debug io latency
- */
-#if 0
-#define _DEBUG_USB_IO_
-#endif
-
-/* enable this to debug communication
+static int ft2232_execute_queue(void);
+
+static int ft2232_speed(int speed);
+static int ft2232_speed_div(int speed, int* khz);
+static int ft2232_khz(int khz, int* jtag_speed);
+static int ft2232_register_commands(struct command_context_s* cmd_ctx);
+static int ft2232_init(void);
+static int ft2232_quit(void);
+
+static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
+static 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
*/
-#if 0
-#define _DEBUG_USB_COMMS_
-#endif
-
-int ft2232_execute_queue(void);
+static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd);
-int ft2232_speed(int speed);
-int ft2232_register_commands(struct command_context_s *cmd_ctx);
-int ft2232_init(void);
-int ft2232_quit(void);
-int ft2232_handle_device_desc_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);
+static char * ft2232_device_desc_A = NULL;
+static char* ft2232_device_desc = NULL;
+static char* ft2232_serial = NULL;
+static char* ft2232_layout = NULL;
+static unsigned char ft2232_latency = 2;
-char *ft2232_device_desc = 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
{
char* name;
- int(*init)(void);
- void(*reset)(int trst, int srst);
+ int (*init)(void);
+ void (*reset)(int trst, int srst);
+ void (*blink)(void);
} ft2232_layout_t;
-int usbjtag_init(void);
-int jtagkey_init(void);
-void usbjtag_reset(int trst, int srst);
-void jtagkey_reset(int trst, int srst);
-
-ft2232_layout_t ft2232_layouts[] =
+/* init procedures for supported layouts */
+static int usbjtag_init(void);
+static int jtagkey_init(void);
+static int olimex_jtag_init(void);
+static int flyswatter_init(void);
+static int turtle_init(void);
+static int comstick_init(void);
+static int stm32stick_init(void);
+static int axm0432_jtag_init(void);
+static int sheevaplug_init(void);
+static int icebear_jtag_init(void);
+
+/* reset procedures for supported layouts */
+static void usbjtag_reset(int trst, int srst);
+static void jtagkey_reset(int trst, int srst);
+static void olimex_jtag_reset(int trst, int srst);
+static void flyswatter_reset(int trst, int srst);
+static void turtle_reset(int trst, int srst);
+static void comstick_reset(int trst, int srst);
+static void stm32stick_reset(int trst, int srst);
+static void axm0432_jtag_reset(int trst, int srst);
+static void sheevaplug_reset(int trst, int srst);
+static void icebear_jtag_reset(int trst, int srst);
+
+/* blink procedures for layouts that support a blinking led */
+static void olimex_jtag_blink(void);
+static void flyswatter_jtag_blink(void);
+static void turtle_jtag_blink(void);
+
+ft2232_layout_t ft2232_layouts[] =
{
- {"usbjtag", usbjtag_init, usbjtag_reset},
- {"jtagkey", jtagkey_init, jtagkey_reset},
- {"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset},
- {NULL, NULL, NULL},
+ { "usbjtag", usbjtag_init, usbjtag_reset, NULL },
+ { "jtagkey", jtagkey_init, jtagkey_reset, NULL },
+ { "jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL },
+ { "oocdlink", jtagkey_init, jtagkey_reset, NULL },
+ { "signalyzer", usbjtag_init, usbjtag_reset, NULL },
+ { "evb_lm3s811", usbjtag_init, usbjtag_reset, NULL },
+ { "olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink },
+ { "flyswatter", flyswatter_init, flyswatter_reset, flyswatter_jtag_blink },
+ { "turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink },
+ { "comstick", comstick_init, comstick_reset, NULL },
+ { "stm32stick", stm32stick_init, stm32stick_reset, NULL },
+ { "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL },
+ {"sheevaplug", sheevaplug_init, sheevaplug_reset, NULL },
+ { "icebear", icebear_jtag_init, icebear_jtag_reset, NULL },
+ { NULL, NULL, NULL, NULL },
};
-static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
+static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
-static ft2232_layout_t *layout;
-static u8 low_output = 0x0;
-static u8 low_direction = 0x0;
-static u8 high_output = 0x0;
-static u8 high_direction = 0x0;
+static ft2232_layout_t* layout;
+static u8 low_output = 0x0;
+static u8 low_direction = 0x0;
+static u8 high_output = 0x0;
+static u8 high_direction = 0x0;
#if BUILD_FT2232_FTD2XX == 1
-static FT_HANDLE ftdih = NULL;
+static FT_HANDLE ftdih = NULL;
#elif BUILD_FT2232_LIBFTDI == 1
static struct ftdi_context ftdic;
#endif
-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 =
+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 =
{
-
- .name = "ft2232",
-
+ .name = "ft2232",
.execute_queue = ft2232_execute_queue,
-
- .support_statemove = 1,
-
- .speed = ft2232_speed,
- .register_commands = ft2232_register_commands,
+ .speed = ft2232_speed,
+ .speed_div = ft2232_speed_div,
+ .khz = ft2232_khz,
+ .register_commands = ft2232_register_commands,
.init = ft2232_init,
.quit = ft2232_quit,
};
-int ft2232_write(u8 *buf, int size, u32* bytes_written)
+static int ft2232_write(u8* buf, int size, u32* bytes_written)
{
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
- DWORD dw_bytes_written;
- if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
+ DWORD dw_bytes_written;
+ if ( ( status = FT_Write(ftdih, buf, size, &dw_bytes_written) ) != FT_OK )
{
*bytes_written = dw_bytes_written;
- ERROR("FT_Write returned: %i", status);
+ LOG_ERROR("FT_Write returned: %lu", status);
return ERROR_JTAG_DEVICE_ERROR;
}
else
{
*bytes_written = dw_bytes_written;
- return ERROR_OK;
+ return ERROR_OK;
}
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
- if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
+ if ( ( retval = ftdi_write_data(&ftdic, buf, size) ) < 0 )
{
*bytes_written = 0;
- ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
+ LOG_ERROR( "ftdi_write_data: %s", ftdi_get_error_string(&ftdic) );
return ERROR_JTAG_DEVICE_ERROR;
}
else
{
*bytes_written = retval;
- return ERROR_OK;
+ return ERROR_OK;
}
#endif
}
-int ft2232_read(u8* buf, int size, u32* bytes_read)
+
+static int ft2232_read(u8* buf, u32 size, u32* bytes_read)
{
#if BUILD_FT2232_FTD2XX == 1
- DWORD dw_bytes_read;
+ DWORD dw_bytes_read;
FT_STATUS status;
- if ((status = FT_Read(ftdih, buf, size, &dw_bytes_read)) != FT_OK)
+ int timeout = 5;
+ *bytes_read = 0;
+
+ while ( (*bytes_read < size) && timeout-- )
{
- *bytes_read = dw_bytes_read;
- ERROR("FT_Read returned: %i", status);
- return ERROR_JTAG_DEVICE_ERROR;
+ if ( ( status = FT_Read(ftdih, buf + *bytes_read, size -
+ *bytes_read, &dw_bytes_read) ) != FT_OK )
+ {
+ *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;
- return ERROR_OK;
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
int timeout = 100;
*bytes_read = 0;
-
- while ((*bytes_read < size) && timeout--)
+
+ while ( (*bytes_read < size) && timeout-- )
{
- if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
+ if ( ( retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read) ) < 0 )
{
*bytes_read = 0;
- ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
+ LOG_ERROR( "ftdi_read_data: %s", ftdi_get_error_string(&ftdic) );
return ERROR_JTAG_DEVICE_ERROR;
}
*bytes_read += retval;
}
- return ERROR_OK;
+
#endif
+
+ if (*bytes_read < size)
+ {
+ 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;
}
-int ft2232_speed(int speed)
+
+static int ft2232_speed(int speed)
{
- u8 buf[3];
+ u8 buf[3];
int retval;
u32 bytes_written;
- buf[0] = 0x86; /* command "set divisor" */
- buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/
- buf[2] = (speed >> 8) & 0xff; /* valueH */
-
- 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))
+ 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) )
{
- ERROR("couldn't set FT2232 TCK speed");
+ LOG_ERROR("couldn't set FT2232 TCK speed");
return retval;
}
-
+
+ return ERROR_OK;
+}
+
+
+static int ft2232_speed_div(int speed, int* khz)
+{
+ /* 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;
+}
+
+
+static int ft2232_khz(int khz, int* jtag_speed)
+{
+ if (khz==0)
+ {
+ LOG_ERROR("RCLK not supported");
+ return ERROR_FAIL;
+ }
+
+ /* 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;
}
-int ft2232_register_commands(struct command_context_s *cmd_ctx)
+
+static int ft2232_register_commands(struct command_context_s* cmd_ctx)
{
register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
+ register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
+ COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
+ register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
+ COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
return ERROR_OK;
}
-void ft2232_end_state(state)
+
+void ft2232_end_state(tap_state_t state)
{
- if (tap_move_map[state] != -1)
- end_state = state;
+ if (tap_is_state_stable(state))
+ tap_set_end_state(state);
else
{
- ERROR("BUG: %i is not a valid end state", state);
+ LOG_ERROR("BUG: %i is not a valid end state", state);
exit(-1);
}
}
-void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
+
+static 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 cur_byte = 0;
- while(num_bytes-- > 1)
+ while (num_bytes-- > 1)
{
buffer[cur_byte] = BUFFER_READ;
cur_byte++;
buffer[cur_byte] = BUFFER_READ >> 1;
}
- buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);
-
+ buffer[cur_byte] = ( buffer[cur_byte] | ( (BUFFER_READ & 0x02) << 6 ) ) >> (8 - bits_left);
}
-void ft2232_debug_dump_buffer(void)
+
+static void ft2232_debug_dump_buffer(void)
{
- int i;
- char line[256];
- char *line_p = line;
-
+ 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]);
if (i % 16 == 15)
{
- DEBUG("%s", line);
+ LOG_DEBUG("%s", line);
line_p = line;
}
}
-
+
if (line_p != line)
- DEBUG("%s", line);
+ LOG_DEBUG("%s", line);
}
-int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
+
+static int ft2232_send_and_recv(jtag_command_t* first, jtag_command_t* last)
{
- jtag_command_t *cmd;
- u8 *buffer;
- int scan_size;
- enum scan_type type;
- int retval;
- u32 bytes_written;
- u32 bytes_read;
-
+ jtag_command_t* cmd;
+ u8* buffer;
+ int scan_size;
+ enum scan_type type;
+ int retval;
+ u32 bytes_written=0;
+ u32 bytes_read=0;
+
#ifdef _DEBUG_USB_IO_
- struct timeval start, inter, inter2, end;
- struct timeval d_inter, d_inter2, d_end;
+ struct timeval start, inter, inter2, end;
+ struct timeval d_inter, d_inter2, d_end;
#endif
#ifdef _DEBUG_USB_COMMS_
- DEBUG("write buffer (size %i):", ft2232_buffer_size);
+ LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size);
ft2232_debug_dump_buffer();
#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)
+ if ( ( retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written) ) != ERROR_OK )
{
- ERROR("couldn't write MPSSE commands to FT2232");
- exit(-1);
+ 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)
+
+ if ( ( retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read) ) != ERROR_OK )
{
- ERROR("couldn't read from FT2232");
- exit(-1);
+ 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);
- 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: %u.%06u, inter2: %u.%06u end: %u.%06u",
+ (unsigned)d_inter.tv_sec, (unsigned)d_inter.tv_usec,
+ (unsigned)d_inter2.tv_sec, (unsigned)d_inter2.tv_usec,
+ (unsigned)d_end.tv_sec, (unsigned)d_end.tv_usec);
#endif
-
-
+
ft2232_buffer_size = bytes_read;
-
+
if (ft2232_expect_read != ft2232_buffer_size)
{
- ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
- ft2232_debug_dump_buffer();
+ LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read,
+ ft2232_buffer_size,
+ 100 - timeout);
+ ft2232_debug_dump_buffer();
exit(-1);
}
#ifdef _DEBUG_USB_COMMS_
- DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
+ LOG_DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
ft2232_debug_dump_buffer();
#endif
}
- ft2232_expect_read = 0;
+ 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)
{
switch (cmd->type)
{
- case JTAG_SCAN:
- type = jtag_scan_type(cmd->cmd.scan);
- if (type != SCAN_OUT)
- {
- scan_size = jtag_scan_size(cmd->cmd.scan);
- buffer = calloc(CEIL(scan_size, 8), 1);
- ft2232_read_scan(type, buffer, scan_size);
- jtag_read_buffer(buffer, cmd->cmd.scan);
- free(buffer);
- }
- break;
- default:
- break;
+ case JTAG_SCAN:
+ type = jtag_scan_type(cmd->cmd.scan);
+ if (type != SCAN_OUT)
+ {
+ scan_size = jtag_scan_size(cmd->cmd.scan);
+ buffer = calloc(CEIL(scan_size, 8), 1);
+ ft2232_read_scan(type, buffer, scan_size);
+ if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ free(buffer);
+ }
+ break;
+
+ default:
+ break;
}
+
cmd = cmd->next;
}
-
+
ft2232_buffer_size = 0;
- return ERROR_OK;
+ return retval;
}
-void ft2232_add_pathmove(pathmove_command_t *cmd)
+
+static void ft2232_add_pathmove(pathmove_command_t* cmd)
{
int num_states = cmd->num_states;
- u8 tms_byte;
- int state_count;
+ int state_count = 0;
- state_count = 0;
while (num_states)
{
- tms_byte = 0x0;
+ u8 tms_byte = 0; /* zero this on each MPSSE batch */
+
int bit_count = 0;
-
+
+ int num_states_batch = num_states > 7 ? 7 : num_states;
+
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
+
/* number of states remaining */
- BUFFER_ADD = (num_states % 7) - 1;
-
- while (num_states % 7)
+ BUFFER_ADD = num_states_batch - 1;
+
+ while (num_states_batch--)
{
- if (tap_transitions[cur_state].low == cmd->path[state_count])
+ if (tap_state_transition(tap_get_state(), false) == cmd->path[state_count])
buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
- else if (tap_transitions[cur_state].high == cmd->path[state_count])
+ else if (tap_state_transition(tap_get_state(), true) == cmd->path[state_count])
buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
else
{
- 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", tap_state_name(
+ tap_get_state() ), tap_state_name(cmd->path[state_count]) );
exit(-1);
}
- cur_state = cmd->path[state_count];
+ tap_set_state(cmd->path[state_count]);
state_count++;
num_states--;
}
-
+
BUFFER_ADD = tms_byte;
}
- end_state = cur_state;
+ tap_set_end_state(tap_get_state());
}
-void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
+
+void ft2232_add_scan(int ir_scan, enum scan_type type, u8* buffer, int scan_size)
{
int num_bytes = (scan_size + 7) / 8;
int bits_left = scan_size;
- int cur_byte = 0;
+ int cur_byte = 0;
int last_bit;
- if ((!ir_scan && (cur_state != TAP_SD)) || (ir_scan && (cur_state != TAP_SI)))
+ if ( !( ( !ir_scan && (tap_get_state() == TAP_DRSHIFT) )
+ || ( ir_scan && (tap_get_state() == TAP_IRSHIFT) ) ) )
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
+
+ BUFFER_ADD = 0x6; /* scan 7 bits */
+
/* TMS data bits */
if (ir_scan)
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
- cur_state = TAP_SI;
+ BUFFER_ADD = tap_get_tms_path(tap_get_state(), TAP_IRSHIFT);
+ tap_set_state(TAP_IRSHIFT);
}
else
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
- cur_state = TAP_SD;
+ BUFFER_ADD = tap_get_tms_path(tap_get_state(), TAP_DRSHIFT);
+ tap_set_state(TAP_DRSHIFT);
}
- //DEBUG("added TMS scan (no read)");
+ /* LOG_DEBUG("added TMS scan (no read)"); */
}
-
+
/* add command for complete bytes */
- if (num_bytes > 1)
+ while (num_bytes > 1)
{
+ int thisrun_bytes;
if (type == SCAN_IO)
{
/* Clock Data Bytes In and Out LSB First */
BUFFER_ADD = 0x39;
- //DEBUG("added TDI bytes (io %i)", num_bytes);
+ /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
BUFFER_ADD = 0x19;
- //DEBUG("added TDI bytes (o)");
+ /* LOG_DEBUG("added TDI bytes (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
BUFFER_ADD = 0x28;
- //DEBUG("added TDI bytes (i %i)", num_bytes);
+ /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
}
- BUFFER_ADD = (num_bytes-2) & 0xff;
- BUFFER_ADD = ((num_bytes-2) >> 8) & 0xff;
- }
- if (type != SCAN_IN)
- {
- /* add complete bytes */
- while(num_bytes-- > 1)
+
+ thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
+ num_bytes -= thisrun_bytes;
+ BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
+ BUFFER_ADD = ( (thisrun_bytes - 1) >> 8 ) & 0xff;
+
+ if (type != SCAN_IN)
{
- BUFFER_ADD = buffer[cur_byte];
- cur_byte++;
- bits_left -= 8;
+ /* add complete bytes */
+ while (thisrun_bytes-- > 0)
+ {
+ BUFFER_ADD = buffer[cur_byte];
+ cur_byte++;
+ bits_left -= 8;
+ }
+ }
+ else /* (type == SCAN_IN) */
+ {
+ bits_left -= 8 * (thisrun_bytes);
}
- }
- if (type == SCAN_IN)
- {
- bits_left -= 8 * (num_bytes - 1);
}
/* the most signifcant bit is scanned during TAP movement */
if (type != SCAN_IN)
- last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
+ last_bit = ( buffer[cur_byte] >> (bits_left - 1) ) & 0x1;
else
last_bit = 0;
{
/* Clock Data Bits In and Out LSB First */
BUFFER_ADD = 0x3b;
- //DEBUG("added TDI bits (io) %i", bits_left - 1);
+ /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
}
else if (type == SCAN_OUT)
{
/* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
BUFFER_ADD = 0x1b;
- //DEBUG("added TDI bits (o)");
+ /* LOG_DEBUG("added TDI bits (o)"); */
}
else if (type == SCAN_IN)
{
/* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
BUFFER_ADD = 0x2a;
- //DEBUG("added TDI bits (i %i)", bits_left - 1);
+ /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
}
BUFFER_ADD = bits_left - 2;
if (type != SCAN_IN)
BUFFER_ADD = buffer[cur_byte];
}
- /* move from Shift-IR/DR to end state */
- if (type != SCAN_OUT)
+ if ( ( ir_scan && (tap_get_end_state() == TAP_IRSHIFT) )
+ || ( !ir_scan && (tap_get_end_state() == TAP_DRSHIFT) ) )
{
- /* Clock Data to TMS/CS Pin with Read */
- BUFFER_ADD = 0x6b;
- //DEBUG("added TMS scan (read)");
+ if (type == SCAN_IO)
+ {
+ /* Clock Data Bits In and Out LSB First */
+ BUFFER_ADD = 0x3b;
+ /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
+ }
+ else if (type == SCAN_OUT)
+ {
+ /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
+ BUFFER_ADD = 0x1b;
+ /* LOG_DEBUG("added TDI bits (o)"); */
+ }
+ else if (type == SCAN_IN)
+ {
+ /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
+ BUFFER_ADD = 0x2a;
+ /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
+ }
+ BUFFER_ADD = 0x0;
+ BUFFER_ADD = last_bit;
}
else
{
- /* Clock Data to TMS/CS Pin (no Read) */
- BUFFER_ADD = 0x4b;
- //DEBUG("added TMS scan (no read)");
- }
- BUFFER_ADD = 0x6;
- BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
- cur_state = end_state;
-
-}
+ /* move from Shift-IR/DR to end state */
+ if (type != SCAN_OUT)
+ {
+ /* Clock Data to TMS/CS Pin with Read */
+ BUFFER_ADD = 0x6b;
+ /* LOG_DEBUG("added TMS scan (read)"); */
+ }
+ else
+ {
+ /* Clock Data to TMS/CS Pin (no Read) */
+ BUFFER_ADD = 0x4b;
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ }
+ BUFFER_ADD = 0x6; /* scan 7 bits */
-int ft2232_predict_scan_out(int scan_size, enum scan_type type)
-{
- int predicted_size = 3;
-
- if (cur_state != TAP_SD)
- predicted_size += 3;
-
- if (type == SCAN_IN) /* only from device to host */
- {
- /* complete bytes */
- predicted_size += (CEIL(scan_size, 8) > 1) ? 3 : 0;
- /* remaining bits - 1 (up to 7) */
- predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
- }
- else /* host to device, or bidirectional */
- {
- /* complete bytes */
- predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) + 3 - 1) : 0;
- /* remaining bits -1 (up to 7) */
- predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
+ BUFFER_ADD = tap_get_tms_path( tap_get_state(), tap_get_end_state() ) | (last_bit << 7);
+ tap_set_state( tap_get_end_state() );
}
-
- return predicted_size;
}
-int ft2232_predict_scan_in(int scan_size, enum scan_type type)
-{
- int predicted_size = 0;
-
- if (type != SCAN_OUT)
- {
- /* complete bytes */
- predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
- /* remaining bits - 1 */
- predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
- /* last bit (from TMS scan) */
- predicted_size += 1;
- }
-
- //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size);
-
- return predicted_size;
-}
-void usbjtag_reset(int trst, int srst)
+static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, u8* buffer, int scan_size)
{
- if (trst == 1)
- {
- cur_state = TAP_TLR;
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
- low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
- else
- low_output &= ~nTRST; /* switch output low */
- }
- else if (trst == 0)
- {
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
- low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
- else
- low_output |= nTRST; /* switch output high */
- }
+ int num_bytes = (scan_size + 7) / 8;
+ int bits_left = scan_size;
+ int cur_byte = 0;
+ int last_bit;
+ u8* receive_buffer = malloc( CEIL(scan_size, 8) );
+ u8* receive_pointer = receive_buffer;
+ u32 bytes_written;
+ u32 bytes_read;
+ int retval;
+ int thisrun_read = 0;
- if (srst == 1)
+ if (cmd->ir_scan)
{
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- low_output &= ~nSRST; /* switch output low */
- else
- low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
+ LOG_ERROR("BUG: large IR scans are not supported");
+ exit(-1);
}
- else if (srst == 0)
+
+ if (tap_get_state() != TAP_DRSHIFT)
{
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- low_output |= nSRST; /* switch output high */
- else
- low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
- }
-
- /* command "set data bits low byte" */
- BUFFER_ADD = 0x80;
- BUFFER_ADD = low_output;
- BUFFER_ADD = low_direction;
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
-}
+ BUFFER_ADD = 0x6; /* scan 7 bits */
-void jtagkey_reset(int trst, int srst)
-{
- if (trst == 1)
- {
- cur_state = TAP_TLR;
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
- high_output &= ~nTRSTnOE;
- else
- high_output &= ~nTRST;
- }
- else if (trst == 0)
- {
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
- high_output |= nTRSTnOE;
- else
- high_output |= nTRST;
+ /* TMS data bits */
+ BUFFER_ADD = tap_get_tms_path(tap_get_state(), TAP_DRSHIFT);
+ tap_set_state(TAP_DRSHIFT);
}
- if (srst == 1)
+ if ( ( retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written) ) != ERROR_OK )
{
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- high_output &= ~nSRST;
- else
- high_output &= ~nSRSTnOE;
+ LOG_ERROR("couldn't write MPSSE commands to FT2232");
+ exit(-1);
}
- else if (srst == 0)
+ 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)
{
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ int thisrun_bytes;
+
+ if (type == SCAN_IO)
+ {
+ /* Clock Data Bytes In and Out LSB First */
+ BUFFER_ADD = 0x39;
+ /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
+ }
+ else if (type == SCAN_OUT)
+ {
+ /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
+ BUFFER_ADD = 0x19;
+ /* LOG_DEBUG("added TDI bytes (o)"); */
+ }
+ else if (type == SCAN_IN)
+ {
+ /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
+ BUFFER_ADD = 0x28;
+ /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
+ }
+
+ thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
+ thisrun_read = thisrun_bytes;
+ num_bytes -= thisrun_bytes;
+ BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
+ BUFFER_ADD = ( (thisrun_bytes - 1) >> 8 ) & 0xff;
+
+ if (type != SCAN_IN)
+ {
+ /* add complete bytes */
+ while (thisrun_bytes-- > 0)
+ {
+ BUFFER_ADD = buffer[cur_byte];
+ cur_byte++;
+ bits_left -= 8;
+ }
+ }
+ else /* (type == SCAN_IN) */
+ {
+ bits_left -= 8 * (thisrun_bytes);
+ }
+
+ if ( ( retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written) ) != ERROR_OK )
+ {
+ LOG_ERROR("couldn't write MPSSE commands to FT2232");
+ exit(-1);
+ }
+ 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_ERROR("couldn't read from FT2232");
+ exit(-1);
+ }
+ LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
+ 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;
+ else
+ last_bit = 0;
+
+ /* process remaining bits but the last one */
+ if (bits_left > 1)
+ {
+ if (type == SCAN_IO)
+ {
+ /* Clock Data Bits In and Out LSB First */
+ BUFFER_ADD = 0x3b;
+ /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
+ }
+ else if (type == SCAN_OUT)
+ {
+ /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
+ BUFFER_ADD = 0x1b;
+ /* LOG_DEBUG("added TDI bits (o)"); */
+ }
+ else if (type == SCAN_IN)
+ {
+ /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
+ BUFFER_ADD = 0x2a;
+ /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
+ }
+ BUFFER_ADD = bits_left - 2;
+ if (type != SCAN_IN)
+ BUFFER_ADD = buffer[cur_byte];
+
+ if (type != SCAN_OUT)
+ thisrun_read += 2;
+ }
+
+ if (tap_get_end_state() == TAP_DRSHIFT)
+ {
+ if (type == SCAN_IO)
+ {
+ /* Clock Data Bits In and Out LSB First */
+ BUFFER_ADD = 0x3b;
+ /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
+ }
+ else if (type == SCAN_OUT)
+ {
+ /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
+ BUFFER_ADD = 0x1b;
+ /* LOG_DEBUG("added TDI bits (o)"); */
+ }
+ else if (type == SCAN_IN)
+ {
+ /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
+ BUFFER_ADD = 0x2a;
+ /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
+ }
+ BUFFER_ADD = 0x0;
+ BUFFER_ADD = last_bit;
+ }
+ else
+ {
+ /* move from Shift-IR/DR to end state */
+ if (type != SCAN_OUT)
+ {
+ /* Clock Data to TMS/CS Pin with Read */
+ BUFFER_ADD = 0x6b;
+ /* LOG_DEBUG("added TMS scan (read)"); */
+ }
+ else
+ {
+ /* Clock Data to TMS/CS Pin (no Read) */
+ BUFFER_ADD = 0x4b;
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ }
+ BUFFER_ADD = 0x6;
+ BUFFER_ADD = tap_get_tms_path( tap_get_state(), tap_get_end_state() ) | (last_bit << 7);
+ tap_set_state( tap_get_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");
+ exit(-1);
+ }
+ 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_ERROR("couldn't read from FT2232");
+ exit(-1);
+ }
+ LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
+ receive_pointer += bytes_read;
+ }
+
+ return ERROR_OK;
+}
+
+
+static int ft2232_predict_scan_out(int scan_size, enum scan_type type)
+{
+ int predicted_size = 3;
+ int num_bytes = (scan_size - 1) / 8;
+
+ if (tap_get_state() != TAP_DRSHIFT)
+ predicted_size += 3;
+
+ if (type == SCAN_IN) /* only from device to host */
+ {
+ /* complete bytes */
+ 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;
+ /* remaining bits -1 (up to 7) */
+ predicted_size += ( (scan_size - 1) % 8 ) ? 3 : 0;
+ }
+
+ return predicted_size;
+}
+
+
+static int ft2232_predict_scan_in(int scan_size, enum scan_type type)
+{
+ int predicted_size = 0;
+
+ if (type != SCAN_OUT)
+ {
+ /* complete bytes */
+ predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
+
+ /* remaining bits - 1 */
+ predicted_size += ( (scan_size - 1) % 8 ) ? 1 : 0;
+
+ /* last bit (from TMS scan) */
+ predicted_size += 1;
+ }
+
+ /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
+
+ return predicted_size;
+}
+
+
+static void usbjtag_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
+ else
+ low_output &= ~nTRST; /* switch output low */
+ }
+ else if (trst == 0)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
+ else
+ low_output |= nTRST; /* switch output high */
+ }
+
+ if (srst == 1)
+ {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ low_output &= ~nSRST; /* switch output low */
+ else
+ low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
+ }
+ else if (srst == 0)
+ {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ low_output |= nSRST; /* switch output high */
+ else
+ low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x80;
+ BUFFER_ADD = low_output;
+ BUFFER_ADD = low_direction;
+}
+
+
+static void jtagkey_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output &= ~nTRSTnOE;
+ else
+ high_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output |= nTRSTnOE;
+ else
+ high_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ high_output &= ~nSRST;
+ else
+ high_output &= ~nSRSTnOE;
+ }
+ else if (srst == 0)
+ {
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
high_output |= nSRST;
else
high_output |= nSRSTnOE;
}
-
+
+ /* command "set data bits high byte" */
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
+}
+
+
+static void olimex_jtag_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output &= ~nTRSTnOE;
+ else
+ high_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ high_output |= nTRSTnOE;
+ else
+ high_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ high_output |= nSRST;
+ }
+ else if (srst == 0)
+ {
+ high_output &= ~nSRST;
+ }
+
+ /* command "set data bits high byte" */
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
+}
+
+
+static void axm0432_jtag_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ tap_set_state(TAP_RESET);
+ high_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ high_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ high_output &= ~nSRST;
+ }
+ else if (srst == 0)
+ {
+ high_output |= nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
+}
+
+
+static void flyswatter_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ low_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ low_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ low_output |= nSRST;
+ }
+ else if (srst == 0)
+ {
+ low_output &= ~nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x80;
+ BUFFER_ADD = low_output;
+ BUFFER_ADD = low_direction;
+ LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
+}
+
+
+static void turtle_reset(int trst, int srst)
+{
+ trst = trst;
+
+ if (srst == 1)
+ {
+ low_output |= nSRST;
+ }
+ else if (srst == 0)
+ {
+ low_output &= ~nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x80;
+ BUFFER_ADD = low_output;
+ BUFFER_ADD = low_direction;
+ LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
+}
+
+
+static void comstick_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ high_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ high_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ high_output &= ~nSRST;
+ }
+ else if (srst == 0)
+ {
+ high_output |= nSRST;
+ }
+
+ /* command "set data bits high byte" */
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
+}
+
+
+static void stm32stick_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ high_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ high_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ low_output &= ~nSRST;
+ }
+ else if (srst == 0)
+ {
+ 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;
BUFFER_ADD = high_direction;
- DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
+ high_direction);
}
-int ft2232_execute_queue()
+
+
+static void sheevaplug_reset(int trst, int srst)
{
- 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;
+ if (trst == 1)
+ high_output &= ~nTRST;
+ else if (trst == 0)
+ high_output |= nTRST;
+
+ if (srst == 1)
+ high_output &= ~nSRSTnOE;
+ else if (srst == 0)
+ high_output |= nSRSTnOE;
+
+ /* command "set data bits high byte" */
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+ LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+}
+
+static int ft2232_execute_end_state(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("end_state: %i", cmd->cmd.end_state->end_state);
+
+ if (cmd->cmd.end_state->end_state != TAP_INVALID)
+ ft2232_end_state(cmd->cmd.end_state->end_state);
+
+ return retval;
+}
+
+
+static int ft2232_execute_runtest(jtag_command_t *cmd)
+{
+ int retval;
+ int i;
+ int predicted_size = 0;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("runtest %i cycles, end in %i",
+ cmd->cmd.runtest->num_cycles,
+ cmd->cmd.runtest->end_state);
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 0;
+ if (tap_get_state() != TAP_IDLE)
+ predicted_size += 3;
+ predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
+ if ( (cmd->cmd.runtest->end_state != TAP_INVALID) && (cmd->cmd.runtest->end_state != TAP_IDLE) )
+ predicted_size += 3;
+ if ( (cmd->cmd.runtest->end_state == TAP_INVALID) && (tap_get_end_state() != TAP_IDLE) )
+ predicted_size += 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ if (tap_get_state() != TAP_IDLE)
+ {
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+ BUFFER_ADD = 0x6; /* scan 7 bits */
+
+ /* TMS data bits */
+ BUFFER_ADD = tap_get_tms_path(tap_get_state(), TAP_IDLE);
+ tap_set_state(TAP_IDLE);
+ require_send = 1;
+ }
+ i = cmd->cmd.runtest->num_cycles;
+ while (i > 0)
+ {
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+
+ /* scan 7 bits */
+ BUFFER_ADD = (i > 7) ? 6 : (i - 1);
+
+ /* TMS data bits */
+ BUFFER_ADD = 0x0;
+ tap_set_state(TAP_IDLE);
+ i -= (i > 7) ? 7 : i;
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ }
+
+ if (cmd->cmd.runtest->end_state != TAP_INVALID)
+ ft2232_end_state(cmd->cmd.runtest->end_state);
+
+ if ( tap_get_state() != tap_get_end_state() )
+ {
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+ /* scan 7 bit */
+ BUFFER_ADD = 0x6;
+ /* TMS data bits */
+ BUFFER_ADD = tap_get_tms_path( tap_get_state(), tap_get_end_state() );
+ tap_set_state( tap_get_end_state() );
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ }
+ require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG( "runtest: %i, end in %s", cmd->cmd.runtest->num_cycles, tap_state_name( tap_get_end_state() ) );
+#endif
+
+ return retval;
+}
+
+static int ft2232_execute_statemove(jtag_command_t *cmd)
+{
+ int retval;
int predicted_size = 0;
- int require_send = 0;
+ retval = ERROR_OK;
- ft2232_buffer_size = 0;
- ft2232_expect_read = 0;
+ DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state);
- while (cmd)
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
- switch(cmd->type)
- {
- case JTAG_END_STATE:
- 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 (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- ft2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
-
- layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
- require_send = 1;
-
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ if (cmd->cmd.statemove->end_state != TAP_INVALID)
+ ft2232_end_state(cmd->cmd.statemove->end_state);
+
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+
+ BUFFER_ADD = 0x6; /* scan 7 bits */
+
+ /* TMS data bits */
+ BUFFER_ADD = tap_get_tms_path( tap_get_state(), tap_get_end_state() );
+ /* LOG_DEBUG("added TMS scan (no read)"); */
+ tap_set_state( tap_get_end_state() );
+ require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG( "statemove: %s", tap_state_name( tap_get_end_state() ) );
#endif
- break;
- case JTAG_RUNTEST:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 0;
- if (cur_state != TAP_RTI)
- 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))
- predicted_size += 3;
- if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
- predicted_size += 3;
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- ft2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- if (cur_state != TAP_RTI)
- {
- /* 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;
- require_send = 1;
- }
- i = cmd->cmd.runtest->num_cycles;
- while (i > 0)
- {
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = (i > 7) ? 6 : (i - 1);
- /* TMS data bits */
- BUFFER_ADD = 0x0;
- cur_state = TAP_RTI;
- i -= (i > 7) ? 7 : i;
- //DEBUG("added TMS scan (no read)");
- }
- if (cmd->cmd.runtest->end_state != -1)
- ft2232_end_state(cmd->cmd.runtest->end_state);
- if (cur_state != end_state)
- {
- /* 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, end_state);
- cur_state = end_state;
- //DEBUG("added TMS scan (no read)");
- }
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
+
+ return retval;
+}
+
+static int ft2232_execute_pathmove(jtag_command_t *cmd)
+{
+ int retval;
+ int predicted_size = 0;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("pathmove: %i states, end in %i",
+ cmd->cmd.pathmove->num_states,
+ cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ ft2232_add_pathmove(cmd->cmd.pathmove);
+ require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG( "pathmove: %i states, end in %s", cmd->cmd.pathmove->num_states,
+ tap_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]) );
#endif
- break;
- case JTAG_STATEMOVE:
- /* only send the maximum buffer size that FT2232C can handle */
- predicted_size = 3;
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- ft2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- if (cmd->cmd.statemove->end_state != -1)
- ft2232_end_state(cmd->cmd.statemove->end_state);
- /* 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, end_state);
- //DEBUG("added TMS scan (no read)");
- cur_state = end_state;
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("statemove: %i", end_state);
+ return retval;
+}
+
+static int ft2232_execute_scan(jtag_command_t *cmd)
+{
+ int retval;
+ u8* buffer;
+ int scan_size; /* size of IR or DR scan */
+ enum scan_type type;
+ int predicted_size = 0;
+ retval = ERROR_OK;
+
+ scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
+ type = jtag_scan_type(cmd->cmd.scan);
+ predicted_size = ft2232_predict_scan_out(scan_size, type);
+ if ( (predicted_size + 1) > FT2232_BUFFER_SIZE )
+ {
+ LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
+ /* unsent commands before this */
+ 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 != TAP_INVALID)
+ ft2232_end_state(cmd->cmd.scan->end_state);
+ ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
+ require_send = 0;
+ first_unsent = cmd->next;
+ if (buffer)
+ free(buffer);
+ return retval;
+ }
+ else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)",
+ first_unsent,
+ cmd);
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
+ /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
+ if (cmd->cmd.scan->end_state != TAP_INVALID)
+ ft2232_end_state(cmd->cmd.scan->end_state);
+ ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
+ require_send = 1;
+ if (buffer)
+ free(buffer);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG( "%s scan, %i bits, end in %s", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
+ tap_state_name( tap_get_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);
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- ft2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- ft2232_add_pathmove(cmd->cmd.pathmove);
- require_send = 1;
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+ return retval;
+
+}
+
+static int ft2232_execute_reset(jtag_command_t *cmd)
+{
+ int retval;
+ int predicted_size = 0;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("reset trst: %i srst %i",
+ cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3;
+ if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ require_send = 0;
+ first_unsent = cmd;
+ }
+
+ if ( (cmd->cmd.reset->trst == 1) || ( cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST) ) )
+ {
+ tap_set_state(TAP_RESET);
+ }
+ layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ require_send = 1;
+
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
#endif
- break;
- case JTAG_SCAN:
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
- type = jtag_scan_type(cmd->cmd.scan);
- predicted_size = ft2232_predict_scan_out(scan_size, type);
- if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
- {
- DEBUG("ftd2xx buffer size reached, sending queued commands (first_unsent: %x, cmd: %x)", first_unsent, cmd);
- ft2232_send_and_recv(first_unsent, cmd);
- require_send = 0;
- first_unsent = cmd;
- }
- ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
- //DEBUG("new read size: %i", ft2232_expect_read);
- if (cmd->cmd.scan->end_state != -1)
- ft2232_end_state(cmd->cmd.scan->end_state);
- ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
- require_send = 1;
- if (buffer)
- free(buffer);
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
+ return retval;
+}
+
+static int ft2232_execute_sleep(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
+
+ 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 while in %s", cmd->cmd.sleep->us, tap_state_name( tap_get_state() ) );
#endif
- break;
- case JTAG_SLEEP:
- ft2232_send_and_recv(first_unsent, cmd);
- first_unsent = cmd->next;
- jtag_sleep(cmd->cmd.sleep->us);
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("sleep %i usec", cmd->cmd.sleep->us);
+
+ return retval;
+}
+
+static int ft2232_execute_stableclocks(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ /* this is only allowed while in a stable state. A check for a stable
+ * state was done in jtag_add_clocks()
+ */
+ 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, tap_state_name( tap_get_state() ) );
#endif
- break;
- default:
- ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
+
+ return retval;
+}
+
+static int ft2232_execute_command(jtag_command_t *cmd)
+{
+ int retval;
+ retval = ERROR_OK;
+
+ switch (cmd->type)
+ {
+ case JTAG_END_STATE: retval = ft2232_execute_end_state(cmd); break;
+ case JTAG_RESET: retval = ft2232_execute_reset(cmd); break;
+ case JTAG_RUNTEST: retval = ft2232_execute_runtest(cmd); break;
+ case JTAG_STATEMOVE: retval = ft2232_execute_statemove(cmd); break;
+ case JTAG_PATHMOVE: retval = ft2232_execute_pathmove(cmd); break;
+ case JTAG_SCAN: retval = ft2232_execute_scan(cmd); break;
+ case JTAG_SLEEP: retval = ft2232_execute_sleep(cmd); break;
+ case JTAG_STABLECLOCKS: retval = ft2232_execute_stableclocks(cmd); break;
+ default:
+ LOG_ERROR("BUG: unknown JTAG command type encountered");
+ exit(-1);
+ }
+ return retval;
+}
+
+static int ft2232_execute_queue()
+{
+ jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
+ 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();
+
+ while (cmd)
+ {
+ if (ft2232_execute_command(cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ /* Start reading input before FT2232 TX buffer fills up */
cmd = cmd->next;
+ if (ft2232_expect_read > 256)
+ {
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ first_unsent = cmd;
+ }
+ }
+
+ if (require_send > 0)
+ if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
+ retval = ERROR_JTAG_QUEUE_FAILED;
+
+ return retval;
+}
+
+
+#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;
+ u8 latency_timer;
+
+ LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid);
+
+#if IS_WIN32 == 0
+ /* Add non-standard Vid/Pid to the linux driver */
+ if ( ( status = FT_SetVIDPID(vid, pid) ) != FT_OK )
+ {
+ LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
+ }
+#endif
+
+ if (ft2232_device_desc && ft2232_serial)
+ {
+ 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;
+ openex_flags = FT_OPEN_BY_DESCRIPTION;
+ }
+ else if (ft2232_serial)
+ {
+ openex_string = ft2232_serial;
+ openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
+ }
+ else
+ {
+ 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;
+ }
+
+ status = FT_OpenEx(openex_string, openex_flags, &ftdih);
+ if( status != FT_OK ){
+ // under Win32, the FTD2XX driver appends an "A" to the end
+ // of the description, if we tried by the desc, then
+ // try by the alternate "A" description.
+ if( openex_string == ft2232_device_desc ){
+ // Try the alternate method.
+ openex_string = ft2232_device_desc_A;
+ status = FT_OpenEx(openex_string, openex_flags, &ftdih);
+ if( status == FT_OK ){
+ // yea, the "alternate" method worked!
+ } else {
+ // drat, give the user a meaningfull message.
+ // telling the use we tried *BOTH* methods.
+ LOG_WARNING("Unable to open FTDI Device tried: '%s' and '%s'\n",
+ ft2232_device_desc,
+ ft2232_device_desc_A );
+ }
+ }
+ }
+
+ if ( status != FT_OK )
+ {
+ DWORD num_devices;
+
+ if (more)
+ {
+ LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
+ *try_more = 1;
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ LOG_ERROR("unable to open ftdi device: %lu", status);
+ status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
+ if (status == FT_OK)
+ {
+ char** desc_array = malloc( sizeof(char*) * (num_devices + 1) );
+ u32 i;
+
+ for (i = 0; i < num_devices; i++)
+ desc_array[i] = malloc(64);
+
+ desc_array[num_devices] = NULL;
+
+ status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
+
+ if (status == FT_OK)
+ {
+ LOG_ERROR("ListDevices: %lu\n", num_devices);
+ for (i = 0; i < num_devices; i++)
+ LOG_ERROR("%i: \"%s\"", i, desc_array[i]);
+ }
+
+ for (i = 0; i < num_devices; i++)
+ free(desc_array[i]);
+
+ free(desc_array);
+ }
+ else
+ {
+ LOG_ERROR("ListDevices: NONE\n");
+ }
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if ( ( status = FT_SetLatencyTimer(ftdih, ft2232_latency) ) != FT_OK )
+ {
+ 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);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ else
+ {
+ 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);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if ( ( status = FT_SetBitMode(ftdih, 0x0b, 2) ) != FT_OK )
+ {
+ LOG_ERROR("unable to enable bit i/o mode: %lu", status);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ 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 )
+ {
+ LOG_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;
+
+ LOG_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, vid, pid, ft2232_device_desc,
+ ft2232_serial) < 0)
+ {
+ if (more)
+ LOG_WARNING("unable to open ftdi device (trying more): %s",
+ ftdic.error_str);
+ else
+ LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
+ *try_more = 1;
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
+ {
+ LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ if (ftdi_usb_reset(&ftdic) < 0)
+ {
+ LOG_ERROR("unable to reset ftdi device");
+ return ERROR_JTAG_INIT_FAILED;
}
- if (require_send > 0)
- ft2232_send_and_recv(first_unsent, cmd);
+ if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
+ {
+ 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");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ else
+ {
+ LOG_DEBUG("current latency timer: %i", latency_timer);
+ }
+
+ 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)
+ {
+ LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
+ return ERROR_JTAG_INIT_FAILED;
+ }
return ERROR_OK;
}
-int ft2232_init(void)
+
+#endif /* BUILD_FT2232_LIBFTDI == 1 */
+
+static int ft2232_init(void)
{
- u8 latency_timer;
- u8 buf[1];
+ u8 buf[1];
int retval;
u32 bytes_written;
-
-#if BUILD_FT2232_FTD2XX == 1
- FT_STATUS status;
-#endif
+ ft2232_layout_t* cur_layout = ft2232_layouts;
+ int i;
- ft2232_layout_t *cur_layout = ft2232_layouts;
-
- if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
+ if ( (ft2232_layout == NULL) || (ft2232_layout[0] == 0) )
{
ft2232_layout = "usbjtag";
- WARNING("No ft2232 layout specified, using default 'usbjtag'");
+ LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
-
+
while (cur_layout->name)
{
if (strcmp(cur_layout->name, ft2232_layout) == 0)
if (!layout)
{
- ERROR("No matching layout found for %s", ft2232_layout);
+ 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
+ * 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
- DEBUG("'ft2232' interface using FTD2XX with '%s' layout", ft2232_layout);
+ retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
+ more, &try_more);
#elif BUILD_FT2232_LIBFTDI == 1
- DEBUG("'ft2232' interface using libftdi with '%s' layout", ft2232_layout);
+ retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
+ more, &try_more);
#endif
-
- if (ft2232_device_desc == NULL)
+ if (retval >= 0)
+ break;
+ if (!more || !try_more)
+ return retval;
+ }
+
+ ft2232_buffer_size = 0;
+ ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
+
+ if (layout->init() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ ft2232_speed(jtag_speed);
+
+ buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
+ if ( ( ( retval = ft2232_write(buf, 1, &bytes_written) ) != ERROR_OK ) || (bytes_written != 1) )
{
- WARNING("no ftd2xx device description specified, using default 'Dual RS232'");
- ft2232_device_desc = "Dual RS232";
+ LOG_ERROR("couldn't write to FT2232 to disable loopback");
+ return ERROR_JTAG_INIT_FAILED;
}
#if BUILD_FT2232_FTD2XX == 1
+ return ft2232_purge_ftd2xx();
+#elif BUILD_FT2232_LIBFTDI == 1
+ return ft2232_purge_libftdi();
+#endif
-#if IS_WIN32 == 0
- /* Add non-standard Vid/Pid to the linux driver */
- if ((status = FT_SetVIDPID(ft2232_vid, ft2232_pid)) != FT_OK)
+ return ERROR_OK;
+}
+
+
+static int usbjtag_init(void)
+{
+ u8 buf[3];
+ u32 bytes_written;
+
+ low_output = 0x08;
+ low_direction = 0x0b;
+
+ if (strcmp(ft2232_layout, "usbjtag") == 0)
{
- WARNING("couldn't add %4.4x:%4.4x", ft2232_vid, ft2232_pid);
+ nTRST = 0x10;
+ nTRSTnOE = 0x10;
+ nSRST = 0x40;
+ nSRSTnOE = 0x40;
+ }
+ else if (strcmp(ft2232_layout, "signalyzer") == 0)
+ {
+ nTRST = 0x10;
+ nTRSTnOE = 0x10;
+ nSRST = 0x20;
+ nSRSTnOE = 0x20;
+ }
+ else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
+ {
+ nTRST = 0x0;
+ nTRSTnOE = 0x00;
+ nSRST = 0x20;
+ nSRSTnOE = 0x20;
+ low_output = 0x88;
+ low_direction = 0x8b;
+ }
+ else
+ {
+ LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
+ return ERROR_JTAG_INIT_FAILED;
}
-#endif
- if ((status = FT_OpenEx(ft2232_device_desc, FT_OPEN_BY_DESCRIPTION, &ftdih)) != FT_OK)
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
- DWORD num_devices;
-
- ERROR("unable to open ftdi device: %i", status);
- status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
- if (status == FT_OK)
- {
- char **desc_array = malloc(sizeof(char*) * (num_devices + 1));
- int i;
+ low_direction &= ~nTRSTnOE; /* nTRST input */
+ low_output &= ~nTRST; /* nTRST = 0 */
+ }
+ else
+ {
+ low_direction |= nTRSTnOE; /* nTRST output */
+ low_output |= nTRST; /* nTRST = 1 */
+ }
- for (i = 0; i < num_devices; i++)
- desc_array[i] = malloc(64);
- desc_array[num_devices] = NULL;
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ {
+ low_direction |= nSRSTnOE; /* nSRST output */
+ low_output |= nSRST; /* nSRST = 1 */
+ }
+ else
+ {
+ low_direction &= ~nSRSTnOE; /* nSRST input */
+ low_output &= ~nSRST; /* nSRST = 0 */
+ }
- status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | FT_OPEN_BY_DESCRIPTION);
+ /* 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 (status == FT_OK)
- {
- ERROR("ListDevices: %d\n", num_devices);
- for (i = 0; i < num_devices; i++)
- ERROR("%i: %s", i, desc_array[i]);
- }
-
- for (i = 0; i < num_devices; i++)
- free(desc_array[i]);
- free(desc_array);
- }
- else
- {
- printf("ListDevices: NONE\n");
- }
+ if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
return ERROR_JTAG_INIT_FAILED;
}
- if ((status = FT_SetLatencyTimer(ftdih, 2)) != FT_OK)
+ return ERROR_OK;
+}
+
+
+static int axm0432_jtag_init(void)
+{
+ 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) )
{
- ERROR("unable to set latency timer: %i", status);
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
- if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
+
+ if (strcmp(layout->name, "axm0432_jtag") == 0)
+ {
+ nTRST = 0x08;
+ nTRSTnOE = 0x0; /* No output enable for TRST*/
+ nSRST = 0x04;
+ 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;
+
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ {
+ LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
+ }
+ else
+ {
+ high_output |= nTRST;
+ }
+
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ {
+ LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
+ }
+ else
+ {
+ 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");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+
+static int jtagkey_init(void)
+{
+ 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) )
{
- ERROR("unable to get latency timer: %i", status);
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
+
+ if (strcmp(layout->name, "jtagkey") == 0)
+ {
+ nTRST = 0x01;
+ nTRSTnOE = 0x4;
+ nSRST = 0x02;
+ nSRSTnOE = 0x08;
+ }
+ else if ( (strcmp(layout->name, "jtagkey_prototype_v1") == 0)
+ || (strcmp(layout->name, "oocdlink") == 0) )
+ {
+ nTRST = 0x02;
+ nTRSTnOE = 0x1;
+ nSRST = 0x08;
+ nSRSTnOE = 0x04;
+ }
+ else
+ {
+ LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
+ exit(-1);
+ }
+
+ high_output = 0x0;
+ high_direction = 0x0f;
+
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ {
+ high_output |= nTRSTnOE;
+ high_output &= ~nTRST;
+ }
+ else
+ {
+ high_output &= ~nTRSTnOE;
+ high_output |= nTRST;
+ }
+
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ {
+ high_output &= ~nSRSTnOE;
+ high_output |= nSRST;
+ }
else
{
- DEBUG("current latency timer: %i", latency_timer);
+ high_output |= nSRSTnOE;
+ high_output &= ~nSRST;
}
- if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
+ /* 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) )
{
- ERROR("unable to enable bit i/o mode: %i", status);
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
-#elif BUILD_FT2232_LIBFTDI == 1
- if (ftdi_init(&ftdic) < 0)
+
+ return ERROR_OK;
+}
+
+
+static int olimex_jtag_init(void)
+{
+ 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");
return ERROR_JTAG_INIT_FAILED;
+ }
- /* context, vendor id, product id */
- if (ftdi_usb_open(&ftdic, ft2232_vid, ft2232_pid) < 0)
+ nTRST = 0x01;
+ nTRSTnOE = 0x4;
+ nSRST = 0x02;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
+
+ high_output = 0x0;
+ high_direction = 0x0f;
+
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ {
+ high_output |= nTRSTnOE;
+ high_output &= ~nTRST;
+ }
+ else
+ {
+ 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");
+ }
+ else
+ {
+ 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) )
{
- ERROR("unable to open ftdi device: %s", ftdic.error_str);
+ LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
- if (ftdi_usb_reset(&ftdic) < 0)
+ return ERROR_OK;
+}
+
+
+static int flyswatter_init(void)
+{
+ 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");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ nTRST = 0x10;
+ nTRSTnOE = 0x0; /* not output enable for nTRST */
+ nSRST = 0x20;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
+
+ high_output = 0x00;
+ high_direction = 0x0c;
+
+ /* turn red LED3 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) )
{
- ERROR("unable to reset ftdi device");
+ LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
return ERROR_JTAG_INIT_FAILED;
}
- if (ftdi_set_latency_timer(&ftdic, 2) < 0)
+ return ERROR_OK;
+}
+
+
+static int turtle_init(void)
+{
+ 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) )
{
- ERROR("unable to set latency timer");
+ LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
- if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
+
+ 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) )
{
- ERROR("unable to get latency timer");
+ LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
return ERROR_JTAG_INIT_FAILED;
}
- else
- {
- DEBUG("current latency timer: %i", latency_timer);
- }
- ftdic.bitbang_mode = 0; /* Reset controller */
- ftdi_enable_bitbang(&ftdic, 0x0b); /* ctx, JTAG I/O mask */
+ return ERROR_OK;
+}
- ftdic.bitbang_mode = 2; /* MPSSE mode */
- ftdi_enable_bitbang(&ftdic, 0x0b); /* ctx, JTAG I/O mask */
-#endif
- ft2232_buffer_size = 0;
- ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
+static int comstick_init(void)
+{
+ u8 buf[3];
+ u32 bytes_written;
- if (layout->init() != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
+ low_output = 0x08;
+ low_direction = 0x0b;
- ft2232_speed(jtag_speed);
+ /* 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]);
- buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
- if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
+ if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
{
- ERROR("couldn't write to FT2232 to disable loopback");
+ LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-#if BUILD_FT2232_FTD2XX == 1
- if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
- {
- ERROR("error purging ftd2xx device: %i", status);
- return ERROR_JTAG_INIT_FAILED;
- }
-#elif BUILD_FT2232_LIBFTDI == 1
- if (ftdi_usb_purge_buffers(&ftdic) < 0)
+ 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) )
{
- ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
+ LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
return ERROR_JTAG_INIT_FAILED;
}
-#endif
return ERROR_OK;
}
-int usbjtag_init(void)
+
+static int stm32stick_init(void)
{
- u8 buf[3];
+ u8 buf[3];
u32 bytes_written;
-
- low_output = 0x08;
- low_direction = 0x0b;
-
- nTRST = 0x10;
- nTRSTnOE = 0x10;
- nSRST = 0x40;
- nSRSTnOE = 0x40;
-
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
- {
- low_direction &= ~nTRSTnOE; /* nTRST input */
- low_output &= ~nTRST; /* nTRST = 0 */
- }
- else
- {
- low_direction |= nTRSTnOE; /* nTRST output */
- low_output |= nTRST; /* nTRST = 1 */
- }
-
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
- {
- low_direction |= nSRSTnOE; /* nSRST output */
- low_output |= nSRST; /* nSRST = 1 */
- }
- else
+
+ 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) )
{
- low_direction &= ~nSRSTnOE; /* nSRST input */
- low_output &= ~nSRST; /* nSRST = 0 */
+ LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
+ return ERROR_JTAG_INIT_FAILED;
}
-
- /* 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 */
- 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))
+
+ 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) )
{
- ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
-int jtagkey_init(void)
+
+static int sheevaplug_init(void)
{
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 */
- DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
-
+ 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))
{
- ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
+ LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
return ERROR_JTAG_INIT_FAILED;
}
-
- if (strcmp(layout->name, "jtagkey") == 0)
- {
- nTRST = 0x01;
- nTRSTnOE = 0x4;
- nSRST = 0x02;
- nSRSTnOE = 0x08;
- }
- else if (strcmp(layout->name, "jtagkey_prototype_v1") == 0)
- {
- nTRST = 0x02;
- nTRSTnOE = 0x1;
- nSRST = 0x08;
- nSRSTnOE = 0x04;
- }
- else
- {
- ERROR("BUG: jtagkey_init called for non jtagkey layout");
- exit(-1);
- }
-
+
+ nTRSTnOE = 0x1;
+ nTRST = 0x02;
+ nSRSTnOE = 0x4;
+ nSRST = 0x08;
+
high_output = 0x0;
high_direction = 0x0f;
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ /* nTRST is always push-pull */
+ high_output &= ~nTRSTnOE;
+ high_output |= nTRST;
+
+ /* nSRST is always open-drain */
+ 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 */
+ 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))
{
- high_output |= nTRSTnOE;
- high_output &= ~nTRST;
+ LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
+ return ERROR_JTAG_INIT_FAILED;
}
- else
+
+ return ERROR_OK;
+}
+
+static void olimex_jtag_blink(void)
+{
+ /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
+ * ACBUS3 is bit 3 of the GPIOH port
+ */
+ if (high_output & 0x08)
{
- high_output &= ~nTRSTnOE;
- high_output |= nTRST;
+ /* set port pin high */
+ high_output &= 0x07;
}
-
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ else
{
- high_output &= ~nSRSTnOE;
- high_output |= nSRST;
+ /* set port pin low */
+ high_output |= 0x08;
}
- else
+
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+}
+
+
+static void flyswatter_jtag_blink(void)
+{
+ /*
+ * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
+ */
+ high_output ^= 0x0c;
+
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
+}
+
+
+static void turtle_jtag_blink(void)
+{
+ /*
+ * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
+ */
+ if (high_output & 0x08)
{
- high_output |= nSRSTnOE;
- high_output &= ~nSRST;
+ high_output = 0x04;
}
-
- /* initialize high port */
- buf[0] = 0x82; /* command "set data bits low byte" */
- buf[1] = high_output; /* value */
- buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
- 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))
+ else
{
- ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
- return ERROR_JTAG_INIT_FAILED;
+ high_output = 0x08;
}
-
- return ERROR_OK;
+
+ BUFFER_ADD = 0x82;
+ BUFFER_ADD = high_output;
+ BUFFER_ADD = high_direction;
}
-int ft2232_quit(void)
+
+static int ft2232_quit(void)
{
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
status = FT_Close(ftdih);
#elif BUILD_FT2232_LIBFTDI == 1
ftdi_disable_bitbang(&ftdic);
-
+
ftdi_usb_close(&ftdic);
-
+
ftdi_deinit(&ftdic);
#endif
free(ft2232_buffer);
+ ft2232_buffer = NULL;
return ERROR_OK;
}
-int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+
+static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
+ char *cp;
+ char buf[200];
if (argc == 1)
{
ft2232_device_desc = strdup(args[0]);
+ cp = strchr( ft2232_device_desc, 0 );
+ // under Win32, the FTD2XX driver appends an "A" to the end
+ // of the description, this examines the given desc
+ // and creates the 'missing' _A or non_A variable.
+ if( (cp[-1] == 'A') && (cp[-2]==' ') ){
+ // it was, so make this the "A" version.
+ ft2232_device_desc_A = ft2232_device_desc;
+ // and *CREATE* the non-A version.
+ strcpy( buf, ft2232_device_desc );
+ cp = strchr( buf, 0 );
+ cp[-2] = 0;
+ ft2232_device_desc = strdup( buf );
+ } else {
+ // <space>A not defined
+ // so create it
+ sprintf( buf, "%s A", ft2232_device_desc );
+ ft2232_device_desc_A = strdup( buf );
+ }
}
else
{
- ERROR("expected exactly one argument to ft2232_device_desc <description>");
+ LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
}
-
+
+ return ERROR_OK;
+}
+
+
+static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
+{
+ if (argc == 1)
+ {
+ ft2232_serial = strdup(args[0]);
+ }
+ else
+ {
+ LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
+ }
+
return ERROR_OK;
}
-int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+
+static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
if (argc == 0)
return ERROR_OK;
return ERROR_OK;
}
-int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+
+static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
+{
+ int i;
+
+ if (argc > MAX_USB_IDS * 2)
+ {
+ LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
+ "(maximum is %d pairs)", MAX_USB_IDS);
+ argc = MAX_USB_IDS * 2;
+ }
+ if ( argc < 2 || (argc & 1) )
+ {
+ LOG_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;
+}
+
+
+static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
{
- if (argc >= 2)
+ if (argc == 1)
{
- ft2232_vid = strtol(args[0], NULL, 0);
- ft2232_pid = strtol(args[1], NULL, 0);
+ ft2232_latency = atoi(args[0]);
}
else
{
- WARNING("incomplete ft2232_vid_pid configuration directive");
+ 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;
+
+ /* 7 bits of either ones or zeros. */
+ u8 tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00);
+
+ 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 either all zeros or ones to stay in the current stable state */
+ BUFFER_ADD = tms;
+
+ require_send = 1;
+
+ num_cycles -= bitcount_per_command;
+ }
+
+ return retval;
+}
+
+/* ---------------------------------------------------------------------
+ * Support for IceBear JTAG adapter from Section5:
+ * http://section5.ch/icebear
+ *
+ * Author: Sten, debian@sansys-electronic.com
+ */
+
+/* Icebear pin layout
+ *
+ * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC)
+ * GND GND | 4 3| n.c.
+ * ADBUS3 TMS | 6 5| ADBUS6 VCC
+ * ADBUS0 TCK | 8 7| ADBUS7 (GND)
+ * ADBUS4 nTRST |10 9| ACBUS0 (GND)
+ * ADBUS1 TDI |12 11| ACBUS1 (GND)
+ * ADBUS2 TDO |14 13| GND GND
+ *
+ * ADBUS0 O L TCK ACBUS0 GND
+ * ADBUS1 O L TDI ACBUS1 GND
+ * ADBUS2 I TDO ACBUS2 n.c.
+ * ADBUS3 O H TMS ACBUS3 n.c.
+ * ADBUS4 O H nTRST
+ * ADBUS5 O H nSRST
+ * ADBUS6 - VCC
+ * ADBUS7 - GND
+ */
+static int icebear_jtag_init(void) {
+ u8 buf[3];
+ u32 bytes_written;
+
+ low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */
+ low_output = 0x08; /* high: TMS; low: TCK TDI */
+ nTRST = 0x10;
+ nSRST = 0x20;
+
+ if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) {
+ low_direction &= ~nTRST; /* nTRST high impedance */
+ }
+ else {
+ low_direction |= nTRST;
+ low_output |= nTRST;
+ }
+
+ low_direction |= nSRST;
+ low_output |= nSRST;
+
+ /* initialize low byte for jtag */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output;
+ buf[2] = low_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 'IceBear' layout (low)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ high_output = 0x0;
+ high_direction = 0x00;
+
+
+ /* 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 'IceBear' layout (high)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
return ERROR_OK;
}
+
+static void icebear_jtag_reset(int trst, int srst) {
+
+ if (trst == 1) {
+ low_direction |= nTRST;
+ low_output &= ~nTRST;
+ }
+ else if (trst == 0) {
+ if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0)
+ low_direction &= ~nTRST;
+ else
+ low_output |= nTRST;
+ }
+
+ if (srst == 1) {
+ low_output &= ~nSRST;
+ }
+ else if (srst == 0) {
+ low_output |= nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x80;
+ BUFFER_ADD = low_output;
+ BUFFER_ADD = low_direction;
+ LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
+}
Code Review / openocd.git / blobdiff