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- added support for FreeBSD ppi (parallel port access similar to /dev/parport on linux) (thanks to Darius for this patch)

- unified 'ftd2xx' and 'ftdi2232' into a single interface 'ft2232'. The library used to access the hardware is choosen during configure with --enable-ft2232_ftd2xx or --enable-ft2232-libftdi.


git-svn-id: svn://svn.berlios.de/openocd/trunk@83 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.1.0
drath 16 years ago
parent
commit
ec0f06db11
8 changed files with 346 additions and 828 deletions
  1. +14
    -14
      configure.in
  2. +2
    -2
      src/Makefile.am
  3. +7
    -7
      src/jtag/Makefile.am
  4. +286
    -161
      src/jtag/ft2232.c
  5. +0
    -633
      src/jtag/ftdi2232.c
  6. +20
    -10
      src/jtag/jtag.c
  7. +1
    -0
      src/jtag/jtag.h
  8. +16
    -1
      src/jtag/parport.c

+ 14
- 14
configure.in View File

@@ -24,13 +24,13 @@ AC_ARG_ENABLE(parport_ppdev,
AS_HELP_STRING([--enable-parport_ppdev], [Enable use of ppdev (/dev/parportN) for parport]),
[parport_use_ppdev=$enableval], [parport_use_ppdev=no])

AC_ARG_ENABLE(ftdi2232,
AS_HELP_STRING([--enable-ftdi2232], [Enable building the libftdi ft2232c driver]),
[build_ftdi2232=$enableval], [build_ftdi2232=no])
AC_ARG_ENABLE(ft2232_libftdi,
AS_HELP_STRING([--enable-ft2232_libftdi], [Enable building support for FT2232 based devices using the libftdi driver]),
[build_ft2232_libftdi=$enableval], [build_ft2232_libftdi=no])

AC_ARG_ENABLE(ftd2xx,
AS_HELP_STRING([--enable-ftd2xx], [Enable building the ftd2xx ft2232c driver]),
[build_ftd2xx=$enableval], [build_ftd2xx=no])
AC_ARG_ENABLE(ft2232_ftd2xx,
AS_HELP_STRING([--enable-ft2232_ftd2xx], [Enable building support for FT2232 based devices using the FTD2XX driver]),
[build_ft2232_ftd2xx=$enableval], [build_ft2232_ftd2xx=no])
AC_ARG_ENABLE(amtjtagaccel,
AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]),
@@ -114,16 +114,16 @@ else
AC_DEFINE(BUILD_BITBANG, 0, [0 if you don't want a bitbang interface.])
fi

if test $build_ftdi2232 = yes; then
AC_DEFINE(BUILD_FTDI2232, 1, [1 if you want libftdi ft2232.])
if test $build_ft2232_libftdi = yes; then
AC_DEFINE(BUILD_FT2232_LIBFTDI, 1, [1 if you want libftdi ft2232.])
else
AC_DEFINE(BUILD_FTDI2232, 0, [0 if you don't want libftdi ft2232.])
AC_DEFINE(BUILD_FT2232_LIBFTDI, 0, [0 if you don't want libftdi ft2232.])
fi

if test $build_ftd2xx = yes; then
AC_DEFINE(BUILD_FTD2XX, 1, [1 if you want ftd2xx ft2232.])
if test $build_ft2232_ftd2xx = yes; then
AC_DEFINE(BUILD_FT2232_FTD2XX, 1, [1 if you want ftd2xx ft2232.])
else
AC_DEFINE(BUILD_FTD2XX, 0, [0 if you don't want ftd2xx ft2232.])
AC_DEFINE(BUILD_FT2232_FTD2XX, 0, [0 if you don't want ftd2xx ft2232.])
fi

if test $build_amtjtagaccel = yes; then
@@ -139,8 +139,8 @@ AM_CONDITIONAL(PARPORT, test $build_parport = yes)
AM_CONDITIONAL(GIVEIO, test $parport_use_giveio = yes)
AM_CONDITIONAL(EP93XX, test $build_ep93xx = yes)
AM_CONDITIONAL(BITBANG, test $build_bitbang = yes)
AM_CONDITIONAL(FTDI2232, test $build_ftdi2232 = yes)
AM_CONDITIONAL(FTD2XX, test $build_ftd2xx = yes)
AM_CONDITIONAL(FT2232_LIBFTDI, test $build_ft2232_libftdi = yes)
AM_CONDITIONAL(FT2232_FTD2XX, test $build_ft2232_ftd2xx = yes)
AM_CONDITIONAL(AMTJTAGACCEL, test $build_amtjtagaccel = yes)
AM_CONDITIONAL(IS_CYGWIN, test $is_cygwin = yes)
AM_CONDITIONAL(IS_MINGW, test $is_mingw = yes)


+ 2
- 2
src/Makefile.am View File

@@ -16,7 +16,7 @@ else
MINGWLDADD =
endif

if FTDI2232
if FT2232_LIBFTDI
FTDI2232LIB = -lftdi
else
FTDI2232LIB =
@@ -32,7 +32,7 @@ else
FTD2XXLDADD = -lftd2xx
endif
if FTD2XX
if FT2232_FTD2XX
FTD2XXLIB = $(FTD2XXLDADD)
else
FTD2XXLIB =


+ 7
- 7
src/jtag/Makefile.am View File

@@ -25,16 +25,16 @@ else
PARPORTFILES =
endif

if FTDI2232
FTDI2232FILES = ftdi2232.c
if FT2232_LIBFTDI
FT2232FILES = ft2232.c
else
FTDI2232FILES =
FT2232FILES =
endif

if FTD2XX
FTD2XXFILES = ftd2xx.c
if FT2232_FTD2XX
FT2232FILES = ft2232.c
else
FTD2XXFILES =
FT2232FILES =
endif

if AMTJTAGACCEL
@@ -49,6 +49,6 @@ else
EP93XXFILES =
endif

libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(FTDI2232FILES) $(FTD2XXFILES) $(AMTJTAGACCELFILES) $(EP93XXFILES)
libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(FT2232FILES) $(AMTJTAGACCELFILES) $(EP93XXFILES)

noinst_HEADERS = bitbang.h jtag.h

src/jtag/ftd2xx.c → src/jtag/ft2232.c View File

@@ -1,5 +1,5 @@
/***************************************************************************
* Copyright (C) 2004 by Dominic Rath *
* Copyright (C) 2004, 2006 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
@@ -39,7 +39,13 @@
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

/* FT2232 access library includes */
#if BUILD_FT2232_FTD2XX == 1
#include <ftd2xx.h>
#elif BUILD_FT2232_LIBFTDI == 1
#include <ftdi.h>
#endif

#include <sys/time.h>
#include <time.h>
@@ -56,41 +62,35 @@
#define _DEBUG_USB_COMMS_
#endif

/* enable this to work around ftd2xx deadlock
*/
#if 0
#define _FTD2XX_QUEUE_DELAY_
#endif

int ftd2xx_execute_queue(void);
int ft2232_execute_queue(void);

int ftd2xx_speed(int speed);
int ftd2xx_register_commands(struct command_context_s *cmd_ctx);
int ftd2xx_init(void);
int ftd2xx_quit(void);
int ft2232_speed(int speed);
int ft2232_register_commands(struct command_context_s *cmd_ctx);
int ft2232_init(void);
int ft2232_quit(void);

int ftd2xx_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int ftd2xx_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int ftd2xx_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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);

char *ftd2xx_device_desc = NULL;
char *ftd2xx_layout = NULL;
u16 ftd2xx_vid = 0x0403;
u16 ftd2xx_pid = 0x6010;
char *ft2232_device_desc = NULL;
char *ft2232_layout = NULL;
u16 ft2232_vid = 0x0403;
u16 ft2232_pid = 0x6010;

typedef struct ftd2xx_layout_s
typedef struct ft2232_layout_s
{
char* name;
int(*init)(void);
void(*reset)(int trst, int srst);
} ftd2xx_layout_t;
} 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);

ftd2xx_layout_t ftd2xx_layouts[] =
ft2232_layout_t ft2232_layouts[] =
{
{"usbjtag", usbjtag_init, usbjtag_reset},
{"jtagkey", jtagkey_init, jtagkey_reset},
@@ -100,68 +100,138 @@ ftd2xx_layout_t ftd2xx_layouts[] =

static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;

static ftd2xx_layout_t *layout;
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;
#elif BUILD_FT2232_LIBFTDI == 1
static struct ftdi_context ftdic;
#endif

static u8 *ftd2xx_buffer = NULL;
static int ftd2xx_buffer_size = 0;
static int ftd2xx_read_pointer = 0;
static int ftd2xx_expect_read = 0;
#define FTD2XX_BUFFER_SIZE 131072
#define BUFFER_ADD ftd2xx_buffer[ftd2xx_buffer_size++]
#define BUFFER_READ ftd2xx_buffer[ftd2xx_read_pointer++]
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 ftd2xx_interface =
jtag_interface_t ft2232_interface =
{
.name = "ftd2xx",
.name = "ft2232",
.execute_queue = ftd2xx_execute_queue,
.execute_queue = ft2232_execute_queue,
.support_statemove = 1,
.speed = ftd2xx_speed,
.register_commands = ftd2xx_register_commands,
.init = ftd2xx_init,
.quit = ftd2xx_quit,
.speed = ft2232_speed,
.register_commands = ft2232_register_commands,
.init = ft2232_init,
.quit = ft2232_quit,
};

int ftd2xx_speed(int speed)
int ft2232_write(u8 *buf, int size, u32* bytes_written)
{
u8 buf[3];
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
DWORD bytes_written;
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);
return ERROR_JTAG_DEVICE_ERROR;
}
else
{
*bytes_written = dw_bytes_written;
return ERROR_OK;
}
#elif BUILD_FT2232_LIBFTDI == 1
int retval;
if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
{
*bytes_written = 0;
ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
return ERROR_JTAG_DEVICE_ERROR;
}
else
{
*bytes_written = retval;
return ERROR_OK;
}
#endif
}

int ft2232_read(u8* buf, int size, u32* bytes_read)
{
#if BUILD_FT2232_FTD2XX == 1
DWORD dw_bytes_read;
FT_STATUS status;
if ((status = FT_Read(ftdih, buf, size, &dw_bytes_read)) != FT_OK)
{
*bytes_read = dw_bytes_read;
ERROR("FT_Read returned: %i", status);
return ERROR_JTAG_DEVICE_ERROR;
}
*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--)
{
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));
return ERROR_JTAG_DEVICE_ERROR;
}
*bytes_read += retval;
}
return ERROR_OK;
#endif
}

int ft2232_speed(int speed)
{
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 (((status = FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't write to ftdi device: %i", status);
return status;
ERROR("couldn't set FT2232 TCK speed");
return retval;
}
return ERROR_OK;
}

int ftd2xx_register_commands(struct command_context_s *cmd_ctx)
int ft2232_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "ftd2xx_device_desc", ftd2xx_handle_device_desc_command,
register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "ftd2xx_layout", ftd2xx_handle_layout_command,
register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "ftd2xx_vid_pid", ftd2xx_handle_vid_pid_command,
register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
COMMAND_CONFIG, NULL);
return ERROR_OK;
}

void ftd2xx_end_state(state)
void ft2232_end_state(state)
{
if (tap_move_map[state] != -1)
end_state = state;
@@ -172,7 +242,7 @@ void ftd2xx_end_state(state)
}
}

void ftd2xx_read_scan(enum scan_type type, u8* buffer, int scan_size)
void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
{
int num_bytes = ((scan_size + 7) / 8);
int bits_left = scan_size;
@@ -196,15 +266,15 @@ void ftd2xx_read_scan(enum scan_type type, u8* buffer, int scan_size)

}

void ftd2xx_debug_dump_buffer(void)
void ft2232_debug_dump_buffer(void)
{
int i;
char line[256];
char *line_p = line;
for (i = 0; i < ftd2xx_buffer_size; i++)
for (i = 0; i < ft2232_buffer_size; i++)
{
line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ftd2xx_buffer[i]);
line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
if (i % 16 == 15)
{
DEBUG("%s", line);
@@ -216,15 +286,15 @@ void ftd2xx_debug_dump_buffer(void)
DEBUG("%s", line);
}

int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
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;
FT_STATUS status;
DWORD bytes_written;
DWORD bytes_read;
int retval;
u32 bytes_written;
u32 bytes_read;
#ifdef _DEBUG_USB_IO_
struct timeval start, inter, inter2, end;
@@ -232,17 +302,17 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
#endif

#ifdef _DEBUG_USB_COMMS_
DEBUG("write buffer (size %i):", ftd2xx_buffer_size);
ftd2xx_debug_dump_buffer();
DEBUG("write buffer (size %i):", ft2232_buffer_size);
ft2232_debug_dump_buffer();
#endif

#ifdef _DEBUG_USB_IO_
gettimeofday(&start, NULL);
#endif

if ((status = FT_Write(ftdih, ftd2xx_buffer, ftd2xx_buffer_size, &bytes_written)) != FT_OK)
if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
{
ERROR("couldn't write to ftdi device: %i", status);
ERROR("couldn't write MPSSE commands to FT2232");
exit(-1);
}
@@ -250,32 +320,21 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
gettimeofday(&inter, NULL);
#endif
if (ftd2xx_expect_read)
if (ft2232_expect_read)
{
int timeout = 100;
ftd2xx_buffer_size = 0;
#ifdef _FTD2XX_QUEUE_DELAY_
DWORD inrxqueue = 0;
while (inrxqueue < ftd2xx_expect_read)
{
FT_GetQueueStatus(ftdih, &inrxqueue);
if (inrxqueue >= ftd2xx_expect_read)
break;
usleep(1000);
};
#endif
ft2232_buffer_size = 0;
#ifdef _DEBUG_USB_IO_
gettimeofday(&inter2, NULL);
gettimeofday(&inter2, NULL);
#endif
if ((status = FT_Read(ftdih, ftd2xx_buffer, ftd2xx_expect_read, &bytes_read)) != FT_OK)
if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
{
ERROR("couldn't read from ftdi device: %i", status);
ERROR("couldn't read from FT2232");
exit(-1);
}
#ifdef _DEBUG_USB_IO_
gettimeofday(&end, NULL);

@@ -287,24 +346,24 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
#endif
ftd2xx_buffer_size = bytes_read;
ft2232_buffer_size = bytes_read;
if (ftd2xx_expect_read != ftd2xx_buffer_size)
if (ft2232_expect_read != ft2232_buffer_size)
{
ERROR("ftd2xx_expect_read (%i) != ftd2xx_buffer_size (%i) (%i retries)", ftd2xx_expect_read, ftd2xx_buffer_size, 100 - timeout);
ftd2xx_debug_dump_buffer();
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, ftd2xx_buffer_size);
ftd2xx_debug_dump_buffer();
DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
ft2232_debug_dump_buffer();
#endif
}

ftd2xx_expect_read = 0;
ftd2xx_read_pointer = 0;
ft2232_expect_read = 0;
ft2232_read_pointer = 0;

cmd = first;
while (cmd != last)
@@ -317,7 +376,7 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
{
scan_size = jtag_scan_size(cmd->cmd.scan);
buffer = calloc(CEIL(scan_size, 8), 1);
ftd2xx_read_scan(type, buffer, scan_size);
ft2232_read_scan(type, buffer, scan_size);
jtag_read_buffer(buffer, cmd->cmd.scan);
free(buffer);
}
@@ -328,12 +387,12 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
cmd = cmd->next;
}
ftd2xx_buffer_size = 0;
ft2232_buffer_size = 0;

return ERROR_OK;
}

void ftd2xx_add_pathmove(pathmove_command_t *cmd)
void ft2232_add_pathmove(pathmove_command_t *cmd)
{
int num_states = cmd->num_states;
u8 tms_byte;
@@ -373,7 +432,7 @@ void ftd2xx_add_pathmove(pathmove_command_t *cmd)
end_state = cur_state;
}

void ftd2xx_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;
@@ -490,7 +549,7 @@ void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size

}

int ftd2xx_predict_scan_out(int scan_size, enum scan_type type)
int ft2232_predict_scan_out(int scan_size, enum scan_type type)
{
int predicted_size = 3;
@@ -515,7 +574,7 @@ int ftd2xx_predict_scan_out(int scan_size, enum scan_type type)
return predicted_size;
}

int ftd2xx_predict_scan_in(int scan_size, enum scan_type type)
int ft2232_predict_scan_in(int scan_size, enum scan_type type)
{
int predicted_size = 0;
@@ -614,7 +673,7 @@ void jtagkey_reset(int trst, int srst)
DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}

int ftd2xx_execute_queue()
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 */
@@ -625,8 +684,8 @@ int ftd2xx_execute_queue()
int predicted_size = 0;
int require_send = 0;

ftd2xx_buffer_size = 0;
ftd2xx_expect_read = 0;
ft2232_buffer_size = 0;
ft2232_expect_read = 0;

while (cmd)
{
@@ -634,14 +693,14 @@ int ftd2xx_execute_queue()
{
case JTAG_END_STATE:
if (cmd->cmd.end_state->end_state != -1)
ftd2xx_end_state(cmd->cmd.end_state->end_state);
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 (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
@@ -663,9 +722,9 @@ int ftd2xx_execute_queue()
predicted_size += 3;
if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
predicted_size += 3;
if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
@@ -694,7 +753,7 @@ int ftd2xx_execute_queue()
//DEBUG("added TMS scan (no read)");
}
if (cmd->cmd.runtest->end_state != -1)
ftd2xx_end_state(cmd->cmd.runtest->end_state);
ft2232_end_state(cmd->cmd.runtest->end_state);
if (cur_state != end_state)
{
/* command "Clock Data to TMS/CS Pin (no Read)" */
@@ -714,14 +773,14 @@ int ftd2xx_execute_queue()
case JTAG_STATEMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
if (cmd->cmd.statemove->end_state != -1)
ftd2xx_end_state(cmd->cmd.statemove->end_state);
ft2232_end_state(cmd->cmd.statemove->end_state);
/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* scan 7 bit */
@@ -738,13 +797,13 @@ int ftd2xx_execute_queue()
case JTAG_PATHMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
{
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
ftd2xx_add_pathmove(cmd->cmd.pathmove);
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]);
@@ -753,19 +812,19 @@ int ftd2xx_execute_queue()
case JTAG_SCAN:
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
type = jtag_scan_type(cmd->cmd.scan);
predicted_size = ftd2xx_predict_scan_out(scan_size, type);
if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
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);
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
ftd2xx_expect_read += ftd2xx_predict_scan_in(scan_size, type);
//DEBUG("new read size: %i", ftd2xx_expect_read);
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)
ftd2xx_end_state(cmd->cmd.scan->end_state);
ftd2xx_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
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);
@@ -774,7 +833,7 @@ int ftd2xx_execute_queue()
#endif
break;
case JTAG_SLEEP:
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);
first_unsent = cmd->next;
jtag_sleep(cmd->cmd.sleep->us);
#ifdef _DEBUG_JTAG_IO_
@@ -789,30 +848,33 @@ int ftd2xx_execute_queue()
}

if (require_send > 0)
ftd2xx_send_and_recv(first_unsent, cmd);
ft2232_send_and_recv(first_unsent, cmd);

return ERROR_OK;
}

int ftd2xx_init(void)
int ft2232_init(void)
{
u8 latency_timer;
FT_STATUS status;
DWORD num_devices;
u8 buf[1];
DWORD bytes_written;
int retval;
u32 bytes_written;
ftd2xx_layout_t *cur_layout = ftd2xx_layouts;
#if BUILD_FT2232_FTD2XX == 1
FT_STATUS status;
#endif

ft2232_layout_t *cur_layout = ft2232_layouts;
if ((ftd2xx_layout == NULL) || (ftd2xx_layout[0] == 0))
if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
{
ftd2xx_layout = "usbjtag";
WARNING("No ftd2xx layout specified, using default 'usbjtag'");
ft2232_layout = "usbjtag";
WARNING("No ft2232 layout specified, using default 'usbjtag'");
}
while (cur_layout->name)
{
if (strcmp(cur_layout->name, ftd2xx_layout) == 0)
if (strcmp(cur_layout->name, ft2232_layout) == 0)
{
layout = cur_layout;
break;
@@ -822,26 +884,36 @@ int ftd2xx_init(void)

if (!layout)
{
ERROR("No matching layout found for %s", ftd2xx_layout);
ERROR("No matching layout found for %s", ft2232_layout);
return ERROR_JTAG_INIT_FAILED;
}
if (ftd2xx_device_desc == NULL)
#if BUILD_FT2232_FTD2XX == 1
DEBUG("'ft2232' interface using FTD2XX with '%s' layout", ft2232_layout);
#elif BUILD_FT2232_LIBFTDI == 1
DEBUG("'ft2232' interface using libftdi with '%s' layout", ft2232_layout);
#endif
if (ft2232_device_desc == NULL)
{
WARNING("no ftd2xx device description specified, using default 'Dual RS232'");
ftd2xx_device_desc = "Dual RS232";
ft2232_device_desc = "Dual RS232";
}

#if BUILD_FT2232_FTD2XX == 1

#if IS_WIN32 == 0
/* Add JTAGkey Vid/Pid to the linux driver */
if ((status = FT_SetVIDPID(ftd2xx_vid, ftd2xx_pid)) != FT_OK)
/* Add non-standard Vid/Pid to the linux driver */
if ((status = FT_SetVIDPID(ft2232_vid, ft2232_pid)) != FT_OK)
{
WARNING("couldn't add %4.4x:%4.4x", ftd2xx_vid, ftd2xx_pid);
WARNING("couldn't add %4.4x:%4.4x", ft2232_vid, ft2232_pid);
}
#endif

if ((status = FT_OpenEx(ftd2xx_device_desc, FT_OPEN_BY_DESCRIPTION, &ftdih)) != FT_OK)
if ((status = FT_OpenEx(ft2232_device_desc, FT_OPEN_BY_DESCRIPTION, &ftdih)) != FT_OK)
{
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)
@@ -894,27 +966,74 @@ int ftd2xx_init(void)
ERROR("unable to enable bit i/o mode: %i", status);
return ERROR_JTAG_INIT_FAILED;
}
#elif BUILD_FT2232_LIBFTDI == 1
if (ftdi_init(&ftdic) < 0)
return ERROR_JTAG_INIT_FAILED;

/* context, vendor id, product id */
if (ftdi_usb_open(&ftdic, ft2232_vid, ft2232_pid) < 0)
{
ERROR("unable to open ftdi device: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}

if (ftdi_usb_reset(&ftdic) < 0)
{
ERROR("unable to reset ftdi device");
return ERROR_JTAG_INIT_FAILED;
}

if (ftdi_set_latency_timer(&ftdic, 2) < 0)
{
ERROR("unable to set latency timer");
return ERROR_JTAG_INIT_FAILED;
}
if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
{
ERROR("unable to get latency timer");
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 */

ftd2xx_buffer_size = 0;
ftd2xx_buffer = malloc(FTD2XX_BUFFER_SIZE);
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);

if (layout->init() != ERROR_OK)
return ERROR_JTAG_INIT_FAILED;

ftd2xx_speed(jtag_speed);
ft2232_speed(jtag_speed);

buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
if (((status = FT_Write(ftdih, buf, 1, &bytes_written)) != FT_OK) || (bytes_written != 1))
if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
{
ERROR("couldn't write to ftdi device: %i", status);
ERROR("couldn't write to FT2232 to disable loopback");
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)
{
ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}
#endif

return ERROR_OK;
}
@@ -922,8 +1041,7 @@ int ftd2xx_init(void)
int usbjtag_init(void)
{
u8 buf[3];
FT_STATUS status;
DWORD bytes_written;
u32 bytes_written;
low_output = 0x08;
low_direction = 0x0b;
@@ -961,9 +1079,9 @@ int usbjtag_init(void)
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 (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't write to ftdi device: %i", status);
ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
return ERROR_JTAG_INIT_FAILED;
}

@@ -973,8 +1091,7 @@ int usbjtag_init(void)
int jtagkey_init(void)
{
u8 buf[3];
FT_STATUS status;
DWORD bytes_written;
u32 bytes_written;
low_output = 0x08;
low_direction = 0x1b;
@@ -985,9 +1102,9 @@ int jtagkey_init(void)
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]);
if (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't write to ftdi device: %i", status);
ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
@@ -1042,61 +1159,69 @@ int jtagkey_init(void)
buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
if (((FT_Write(ftdih, buf, 3, &bytes_written)) != FT_OK) || (bytes_written != 3))
if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
{
ERROR("couldn't write to ftdi device: %i", status);
ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}

int ftd2xx_quit(void)
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(ftd2xx_buffer);
free(ft2232_buffer);

return ERROR_OK;
}

int ftd2xx_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 1)
{
ftd2xx_device_desc = strdup(args[0]);
ft2232_device_desc = strdup(args[0]);
}
else
{
ERROR("expected exactly one argument to ftd2xx_device_desc <description>");
ERROR("expected exactly one argument to ft2232_device_desc <description>");
}
return ERROR_OK;
}

int ftd2xx_handle_layout_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)
{
if (argc == 0)
return ERROR_OK;

ftd2xx_layout = malloc(strlen(args[0]) + 1);
strcpy(ftd2xx_layout, args[0]);
ft2232_layout = malloc(strlen(args[0]) + 1);
strcpy(ft2232_layout, args[0]);

return ERROR_OK;
}

int ftd2xx_handle_vid_pid_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)
{
if (argc >= 2)
{
ftd2xx_vid = strtol(args[0], NULL, 0);
ftd2xx_pid = strtol(args[1], NULL, 0);
ft2232_vid = strtol(args[0], NULL, 0);
ft2232_pid = strtol(args[1], NULL, 0);
}
else
{
WARNING("incomplete ftd2xx_vid_pid configuration directive");
WARNING("incomplete ft2232_vid_pid configuration directive");
}
return ERROR_OK;

+ 0
- 633
src/jtag/ftdi2232.c View File

@@ -1,633 +0,0 @@
/***************************************************************************
* Copyright (C) 2004 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. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

/* project specific includes */
#include "log.h"
#include "types.h"
#include "jtag.h"
#include "configuration.h"
#include "command.h"

/* system includes */
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <usb.h>
#include <ftdi.h>

#include <sys/time.h>
#include <time.h>

/* enable this to debug io latency
*/
#if 0
#define _DEBUG_USB_IO_
#endif

int ftdi2232_execute_queue(void);

int ftdi2232_speed(int speed);
int ftdi2232_register_commands(struct command_context_s *cmd_ctx);
int ftdi2232_init(void);
int ftdi2232_quit(void);

enum { FTDI2232_TRST = 0x10, FTDI2232_SRST = 0x40 };
static u8 discrete_output = 0x0 | FTDI2232_TRST | FTDI2232_SRST;
static struct ftdi_context ftdic;

static u8 *ftdi2232_buffer = NULL;
static int ftdi2232_buffer_size = 0;
static int ftdi2232_read_pointer = 0;
static int ftdi2232_expect_read = 0;
#define FTDI2232_BUFFER_SIZE 131072
#define BUFFER_ADD ftdi2232_buffer[ftdi2232_buffer_size++]
#define BUFFER_READ ftdi2232_buffer[ftdi2232_read_pointer++]

#define FTDI2232_SAVE_SIZE 1024

int ftdi2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

static u16 ftdi2232_vid = 0x0403;
static u16 ftdi2232_pid = 0x6010;

jtag_interface_t ftdi2232_interface =
{
.name = "ftdi2232",
.execute_queue = ftdi2232_execute_queue,
.support_statemove = 1,
.speed = ftdi2232_speed,
.register_commands = ftdi2232_register_commands,
.init = ftdi2232_init,
.quit = ftdi2232_quit,
};

int ftdi2232_speed(int speed)
{
u8 buf[3];

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]);
ftdi_write_data(&ftdic, buf, 3);

return ERROR_OK;
}

int ftdi2232_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "ftdi2232_vid_pid", ftdi2232_handle_vid_pid_command,
COMMAND_CONFIG, NULL);
return ERROR_OK;
}

void ftdi2232_end_state(state)
{
if (tap_move_map[state] != -1)
end_state = state;
else
{
ERROR("BUG: %i is not a valid end state", state);
exit(-1);
}
}

void ftdi2232_read_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;

while(num_bytes-- > 1)
{
buffer[cur_byte] = BUFFER_READ;
cur_byte++;
bits_left -= 8;
}

buffer[cur_byte] = 0x0;

if (bits_left > 1)
{
buffer[cur_byte] = BUFFER_READ >> 1;
}

buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);

}

void ftdi2232_debug_dump_buffer(void)
{
int i;
for (i = 0; i < ftdi2232_buffer_size; i++)
{
printf("%2.2x ", ftdi2232_buffer[i]);
if (i % 16 == 15)
printf("\n");
}
printf("\n");
fflush(stdout);
}

int ftdi2232_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;

BUFFER_ADD = 0x87; /* send immediate command */
if (ftdi2232_buffer_size > FTDI2232_SAVE_SIZE)
{
ERROR("BUG: ftdi2232_buffer grew beyond %i byte (%i) - this is going to fail", FTDI2232_SAVE_SIZE, ftdi2232_buffer_size);
}

#ifdef _DEBUG_USB_IO_
DEBUG("write buffer (size %i):", ftdi2232_buffer_size);
ftdi2232_debug_dump_buffer();
#endif

if ((retval = ftdi_write_data(&ftdic, ftdi2232_buffer, ftdi2232_buffer_size)) < 0)
{
ERROR("ftdi_write_data returned %i", retval);
exit(-1);
}

if (ftdi2232_expect_read)
{
int timeout = 100;
ftdi2232_buffer_size = 0;
while ((ftdi2232_buffer_size < ftdi2232_expect_read) && timeout)
{
ftdi2232_buffer_size += ftdi_read_data(&ftdic, ftdi2232_buffer + ftdi2232_buffer_size, FTDI2232_BUFFER_SIZE - ftdi2232_buffer_size);
timeout--;
}

if (ftdi2232_expect_read != ftdi2232_buffer_size)
{
ERROR("ftdi2232_expect_read (%i) != ftdi2232_buffer_size (%i) (%i retries)", ftdi2232_expect_read, ftdi2232_buffer_size, 100 - timeout);
ftdi2232_debug_dump_buffer();

exit(-1);
}

#ifdef _DEBUG_USB_IO_
DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ftdi2232_buffer_size);
ftdi2232_debug_dump_buffer();
#endif
}

ftdi2232_expect_read = 0;
ftdi2232_read_pointer = 0;

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);
ftdi2232_read_scan(type, buffer, scan_size);
jtag_read_buffer(buffer, cmd->cmd.scan);
free(buffer);
}
break;
default:
break;
}
cmd = cmd->next;
}
ftdi2232_buffer_size = 0;

return ERROR_OK;
}

void ftdi2232_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 last_bit;

/* command "Clock Data to TMS/CS Pin (no Read)" */
BUFFER_ADD = 0x4b;
/* scan 7 bit */
BUFFER_ADD = 0x6;
/* TMS data bits */
if (ir_scan)
{
BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
cur_state = TAP_SI;
}
else
{
BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
cur_state = TAP_SD;
}
//DEBUG("added TMS scan (no read)");

/* add command for complete bytes */
if (num_bytes > 1)
{
if (type == SCAN_IO)
{
/* Clock Data Bytes In and Out LSB First */
BUFFER_ADD = 0x39;
//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)");
}
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);
}
BUFFER_ADD = (num_bytes-2) & 0xff;
BUFFER_ADD = ((num_bytes-2) >> 8) & 0xff;
}
if (type != SCAN_IN)
{
/* add complete bytes */
while(num_bytes-- > 1)
{
BUFFER_ADD = buffer[cur_byte];
cur_byte++;
bits_left -= 8;
}
}
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;
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;
//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)");
}
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);
}
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)
{
/* Clock Data to TMS/CS Pin with Read */
BUFFER_ADD = 0x6b;
//DEBUG("added TMS scan (read)");
}
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;

}

int ftdi2232_predict_scan_out(int scan_size, enum scan_type type)
{
int predicted_size = 6;
if (type == SCAN_IN) /* only from device to host */
{
predicted_size += (CEIL(scan_size, 8) > 1) ? 3 : 0;
predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
}
else /* host to device, or bidirectional */
{
predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) + 3 - 1) : 0;
predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
}

return predicted_size;
}

int ftdi2232_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;
}

int ftdi2232_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;

ftdi2232_buffer_size = 0;
ftdi2232_expect_read = 0;

while (cmd)
{
switch(cmd->type)
{
case JTAG_END_STATE:
if (cmd->cmd.end_state->end_state != -1)
ftdi2232_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 (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
{
ftdi2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}

if (cmd->cmd.reset->trst == 1)
{
cur_state = TAP_TLR;
discrete_output &= ~FTDI2232_TRST;
}
else if (cmd->cmd.reset->trst == 0)
{
discrete_output |= FTDI2232_TRST;
}

if (cmd->cmd.reset->srst == 1)
discrete_output &= ~FTDI2232_SRST;
else if (cmd->cmd.reset->srst == 0)
discrete_output |= FTDI2232_SRST;
/* command "set data bits low byte" */
BUFFER_ADD = 0x80;
/* value (TMS=1,TCK=0, TDI=0, TRST/SRST */
BUFFER_ADD = 0x08 | discrete_output;
/* dir (output=1), TCK/TDI/TMS=out, TDO=in, TRST/SRST=out */
BUFFER_ADD = 0x0b | FTDI2232_SRST | FTDI2232_TRST;
require_send = 1;
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 (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
{
ftdi2232_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)
ftdi2232_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;
break;
case JTAG_STATEMOVE:
/* only send the maximum buffer size that FT2232C can handle */
predicted_size = 3;
if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
{
ftdi2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
if (cmd->cmd.statemove->end_state != -1)
ftdi2232_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;
break;
case JTAG_SCAN:
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
type = jtag_scan_type(cmd->cmd.scan);
predicted_size = ftdi2232_predict_scan_out(scan_size, type);
if (ftdi2232_buffer_size + predicted_size + 1 > FTDI2232_SAVE_SIZE)
{
ftdi2232_send_and_recv(first_unsent, cmd);
require_send = 0;
first_unsent = cmd;
}
ftdi2232_expect_read += ftdi2232_predict_scan_in(scan_size, type);
//DEBUG("new read size: %i", ftdi2232_expect_read);
if (cmd->cmd.scan->end_state != -1)
ftdi2232_end_state(cmd->cmd.scan->end_state);
ftdi2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
require_send = 1;
if (buffer)
free(buffer);
break;
case JTAG_SLEEP:
jtag_sleep(cmd->cmd.sleep->us);
break;
default:
ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
}
cmd = cmd->next;
}

if (require_send > 0)
ftdi2232_send_and_recv(first_unsent, cmd);

return ERROR_OK;
}

int ftdi2232_init(void)
{
if (ftdi_init(&ftdic) < 0)
return ERROR_JTAG_INIT_FAILED;

/* context, vendor id, product id */
if (ftdi_usb_open(&ftdic, ftdi2232_vid, ftdi2232_pid) < 0)
{
ERROR("unable to open ftdi device: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}

if (ftdi_usb_reset(&ftdic) < 0)
{
ERROR("unable to reset ftdi device");
return ERROR_JTAG_INIT_FAILED;
}

if (ftdi_set_latency_timer(&ftdic, 1) < 0)
{
ERROR("unable to set latency timer");
return ERROR_JTAG_INIT_FAILED;
}

ftdi2232_buffer_size = 0;
ftdi2232_buffer = malloc(FTDI2232_BUFFER_SIZE);

ftdic.bitbang_mode = 0; /* Reset controller */
ftdi_enable_bitbang(&ftdic, 0x0b | FTDI2232_SRST | FTDI2232_TRST); /* ctx, i/o mask (out=1, in=0) */

ftdic.bitbang_mode = 2; /* MPSSE mode */
ftdi_enable_bitbang(&ftdic, 0x0b | FTDI2232_SRST | FTDI2232_TRST); /* ctx, i/o mask (out=1, in=0) */
if (ftdi_usb_purge_buffers(&ftdic) < 0)
{
ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
return ERROR_JTAG_INIT_FAILED;
}

/* initialize low byte for jtag */
BUFFER_ADD = 0x80; /* command "set data bits low byte" */
BUFFER_ADD = 0x08 | FTDI2232_SRST | FTDI2232_TRST; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
BUFFER_ADD = 0x0b | FTDI2232_SRST | FTDI2232_TRST; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
BUFFER_ADD = 0x85; /* command "Disconnect TDI/DO to TDO/DI for Loopback" */
ftdi2232_debug_dump_buffer();
if (ftdi_write_data(&ftdic, ftdi2232_buffer, ftdi2232_buffer_size) != 4)
return ERROR_JTAG_INIT_FAILED;

ftdi2232_speed(jtag_speed);

return ERROR_OK;
}

int ftdi2232_quit(void)
{
ftdi_disable_bitbang(&ftdic);
ftdi_usb_close(&ftdic);
ftdi_deinit(&ftdic);

free(ftdi2232_buffer);

return ERROR_OK;
}

int ftdi2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc >= 2)
{
ftdi2232_vid = strtol(args[0], NULL, 0);
ftdi2232_pid = strtol(args[1], NULL, 0);
}
else
{
WARNING("incomplete ftdi2232_vid_pid configuration directive");
}
return ERROR_OK;
}

+ 20
- 10
src/jtag/jtag.c View File

@@ -124,12 +124,12 @@ jtag_event_callback_t *jtag_event_callbacks;
extern jtag_interface_t parport_interface;
#endif

#if BUILD_FTDI2232 == 1
extern jtag_interface_t ftdi2232_interface;
#if BUILD_FT2232_FTD2XX == 1
extern jtag_interface_t ft2232_interface;
#endif

#if BUILD_FTD2XX == 1
extern jtag_interface_t ftd2xx_interface;
#if BUILD_FT2232_LIBFTDI == 1
extern jtag_interface_t ft2232_interface;
#endif

#if BUILD_AMTJTAGACCEL == 1
@@ -144,11 +144,11 @@ jtag_interface_t *jtag_interfaces[] = {
#if BUILD_PARPORT == 1
&parport_interface,
#endif
#if BUILD_FTDI2232 == 1
&ftdi2232_interface,
#if BUILD_FT2232_FTD2XX == 1
&ft2232_interface,
#endif
#if BUILD_FTD2XX == 1
&ftd2xx_interface,
#if BUILD_FT2232_LIBFTDI == 1
&ft2232_interface,
#endif
#if BUILD_AMTJTAGACCEL == 1
&amt_jtagaccel_interface,
@@ -1119,7 +1119,9 @@ int jtag_validate_chain()
{
if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
{
ERROR("Error validating JTAG scan chain, IR mismatch");
char *cbuf = buf_to_char(ir_test, total_ir_length);
ERROR("Error validating JTAG scan chain, IR mismatch, scan returned %s", cbuf);
free(cbuf);
exit(-1);
}
chain_pos += device->ir_length;
@@ -1128,7 +1130,9 @@ int jtag_validate_chain()
if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
{
ERROR("Error validating JTAG scan chain, IR mismatch");
char *cbuf = buf_to_char(ir_test, total_ir_length);
ERROR("Error validating JTAG scan chain, IR mismatch, scan returned %s", cbuf);
free(cbuf);
exit(-1);
}
@@ -1217,6 +1221,12 @@ int jtag_init(struct command_context_s *cmd_ctx)
* didn't match one of the compiled-in interfaces
*/
ERROR("No valid jtag interface found (%s)", jtag_interface);
ERROR("compiled-in jtag interfaces:");
for (i = 0; jtag_interfaces[i]; i++)
{
ERROR("%i: %s", i, jtag_interfaces[i]->name);
}
jtag = NULL;
return ERROR_JTAG_INVALID_INTERFACE;
}


+ 1
- 0
src/jtag/jtag.h View File

@@ -270,4 +270,5 @@ extern int jtag_register_event_callback(int (*callback)(enum jtag_event event, v
#define ERROR_JTAG_QUEUE_FAILED (-104)
#define ERROR_JTAG_RESET_WOULD_ASSERT_TRST (-105)
#define ERROR_JTAG_RESET_CANT_SRST (-106)
#define ERROR_JTAG_DEVICE_ERROR (-107)
#endif /* JTAG_H */

+ 16
- 1
src/jtag/parport.c View File

@@ -51,8 +51,15 @@
#include <stdio.h>

#if PARPORT_USE_PPDEV == 1
#ifdef __FreeBSD__
#include <dev/ppbus/ppi.h>
#include <dev/ppbus/ppbconf.h>
#define PPRSTATUS PPIGSTATUS
#define PPWDATA PPISDATA
#else
#include <linux/parport.h>
#include <linux/ppdev.h>
#endif
#include <fcntl.h>
#include <sys/ioctl.h>
#endif
@@ -310,11 +317,17 @@ int parport_init(void)
return ERROR_JTAG_INIT_FAILED;
}

#ifdef __FreeBSD__
DEBUG("opening /dev/ppi%d...", parport_port);

snprintf(buffer, 256, "/dev/ppi%d", parport_port);
device_handle = open(buffer, O_WRONLY);
#else
DEBUG("opening /dev/parport%d...", parport_port);

snprintf(buffer, 256, "/dev/parport%d", parport_port);
device_handle = open(buffer, O_WRONLY);
#endif
if (device_handle<0)
{
ERROR("cannot open device. check it exists and that user read and write rights are set");
@@ -323,6 +336,7 @@ int parport_init(void)

DEBUG("...open");

#ifndef __FreeBSD__
i=ioctl(device_handle, PPCLAIM);
if (i<0)
{
@@ -345,6 +359,7 @@ int parport_init(void)
ERROR("cannot set compatible 1284 mode to device");
return ERROR_JTAG_INIT_FAILED;
}
#endif
#else
if (parport_port == 0)
{


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