Browse Source

xvsf player fixes by Dick Hollenbeck <dick@softplc.com>

git-svn-id: svn://svn.berlios.de/openocd/trunk@1360 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.2.0
kc8apf 15 years ago
parent
commit
d5209daeb1
5 changed files with 122 additions and 47 deletions
  1. +14
    -2
      src/jtag/bitbang.c
  2. +9
    -18
      src/jtag/ft2232.c
  3. +29
    -12
      src/jtag/jtag.c
  4. +9
    -2
      src/jtag/jtag.h
  5. +61
    -13
      src/xsvf/xsvf.c

+ 14
- 2
src/jtag/bitbang.c View File

@@ -38,6 +38,14 @@
#include <unistd.h>


/**
* Function bitbang_stableclocks
* issues a number of clock cycles while staying in a stable state.
* Because the TMS value required to stay in the RESET state is a 1, whereas
* the TMS value required to stay in any of the other stable states is a 0,
* this function checks the current stable state to decide on the value of TMS
* to use.
*/
static void bitbang_stableclocks(int num_cycles);


@@ -162,13 +170,14 @@ void bitbang_runtest(int num_cycles)

static void bitbang_stableclocks(int num_cycles)
{
int tms = (cur_state == TAP_RESET ? 1 : 0);
int i;

/* send num_cycles clocks onto the cable */
for (i = 0; i < num_cycles; i++)
{
bitbang_interface->write(1, 0, 0);
bitbang_interface->write(0, 0, 0);
bitbang_interface->write(1, tms, 0);
bitbang_interface->write(0, tms, 0);
}
}

@@ -293,6 +302,9 @@ int bitbang_execute_queue(void)
break;

case JTAG_STABLECLOCKS:
/* this is only allowed while in a stable state. A check for a stable
* state was done in jtag_add_clocks()
*/
bitbang_stableclocks(cmd->cmd.stableclocks->num_cycles);
break;



+ 9
- 18
src/jtag/ft2232.c View File

@@ -1415,22 +1415,9 @@ int ft2232_execute_queue()
break;

case JTAG_STABLECLOCKS:
/* "if (tap_move_map[cur_state] != -1)" is of no help when cur_state==TAP_IDLE */
switch(cur_state)
{
case TAP_DRSHIFT:
case TAP_IDLE:
case TAP_RESET:
case TAP_DRPAUSE:
case TAP_IRSHIFT:
case TAP_IRPAUSE:
break; /* above stable states are OK */
default:
LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
jtag_state_name(cur_state) );
retval = ERROR_JTAG_QUEUE_FAILED;
}

/* 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_
@@ -2336,11 +2323,15 @@ static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd)
{
int retval = 0;

/* 7 bits of either ones or zeros. */
u8 tms = (cur_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.
* see: http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
*/
int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;

@@ -2358,8 +2349,8 @@ static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd)
/* scan 7 bit */
BUFFER_ADD = bitcount_per_command - 1;

/* TMS data bits are all zeros to stay in the current stable state */
BUFFER_ADD = 0x0;
/* TMS data bits are either all zeros or ones to stay in the current stable state */
BUFFER_ADD = tms;

require_send = 1;



+ 29
- 12
src/jtag/jtag.c View File

@@ -1093,11 +1093,31 @@ void jtag_add_clocks( int num_cycles )
{
int retval;

jtag_prelude1();
/* "if (tap_move_map[cm_queue_cur_state] != -1)" is of no help when cur_state==TAP_IDLE */
switch(cmd_queue_cur_state)
{
case TAP_DRSHIFT:
case TAP_IDLE:
case TAP_RESET:
case TAP_DRPAUSE:
case TAP_IRSHIFT:
case TAP_IRPAUSE:
break; /* above stable states are OK */
default:
LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
jtag_state_name(cmd_queue_cur_state) );
jtag_error = ERROR_JTAG_NOT_STABLE_STATE;
return;
}

retval=interface_jtag_add_clocks(num_cycles);
if (retval!=ERROR_OK)
jtag_error=retval;
if( num_cycles > 0 )
{
jtag_prelude1();

retval=interface_jtag_add_clocks(num_cycles);
if (retval!=ERROR_OK)
jtag_error=retval;
}
}

void jtag_add_reset(int req_tlr_or_trst, int req_srst)
@@ -1287,7 +1307,7 @@ int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
if (cmd->fields[i].out_value)
{
#ifdef _DEBUG_JTAG_IO_
char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : cmd->fields[i].num_bits, 16);
#endif
buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
#ifdef _DEBUG_JTAG_IO_
@@ -1297,9 +1317,6 @@ int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
}

bit_count += cmd->fields[i].num_bits;
#ifdef _DEBUG_JTAG_IO_
LOG_DEBUG("bit_count totalling: %i", bit_count );
#endif
}

return bit_count;
@@ -1325,7 +1342,7 @@ int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);

#ifdef _DEBUG_JTAG_IO_
char *char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
char *char_buf = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
LOG_DEBUG("fields[%i].in_value[%i]: 0x%s", i, num_bits, char_buf);
free(char_buf);
#endif
@@ -1391,13 +1408,13 @@ int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
jtag_tap_name(field->tap));
if (compare_failed)
{
char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);

if (field->in_check_mask)
{
char *in_check_mask_char;
in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16);
LOG_WARNING("value captured during scan didn't pass the requested check:");
LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
captured_char, in_check_value_char, in_check_mask_char);


+ 9
- 2
src/jtag/jtag.h View File

@@ -34,6 +34,11 @@
#define _DEBUG_JTAG_IO_
#endif

#ifndef DEBUG_JTAG_IOZ
#define DEBUG_JTAG_IOZ 64
#endif


/* 16 Tap States, from page 21 of ASSET InterTech, Inc.'s svf.pdf
*/
typedef enum tap_state
@@ -499,12 +504,14 @@ void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e);
* JTAG subsystem uses codes between -100 and -199 */

#define ERROR_JTAG_INIT_FAILED (-100)
#define ERROR_JTAG_INVALID_INTERFACE (-101)
#define ERROR_JTAG_INVALID_INTERFACE (-101)
#define ERROR_JTAG_NOT_IMPLEMENTED (-102)
#define ERROR_JTAG_TRST_ASSERTED (-103)
#define ERROR_JTAG_TRST_ASSERTED (-103)
#define ERROR_JTAG_QUEUE_FAILED (-104)
#define ERROR_JTAG_NOT_STABLE_STATE (-105)
#define ERROR_JTAG_DEVICE_ERROR (-107)


/* this allows JTAG devices to implement the entire jtag_xxx() layer in hw/sw */
#ifdef HAVE_JTAG_MINIDRIVER_H
/* Here a #define MINIDRIVER() and an inline version of hw fifo interface_jtag_add_dr_out can be defined */


+ 61
- 13
src/xsvf/xsvf.c View File

@@ -107,6 +107,7 @@ LSDR 1 TDI (0)
#define LCOUNT 0x19
#define LDELAY 0x1A
#define LSDR 0x1B
#define XTRST 0x1C


/* XSVF valid state values for the XSTATE command, from appendix B of xapp503.pdf */
@@ -127,6 +128,11 @@ LSDR 1 TDI (0)
#define XSV_IREXIT2 0x0E
#define XSV_IRUPDATE 0x0F

/* arguments to XTRST */
#define XTRST_ON 0
#define XTRST_OFF 1
#define XTRST_Z 2
#define XTRST_ABSENT 3

#define XSTATE_MAX_PATH 12

@@ -210,7 +216,7 @@ static void xsvf_add_statemove(tap_state_t state)
int xsvf_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "xsvf", handle_xsvf_command,
COMMAND_EXEC, "run xsvf <file> [virt2]");
COMMAND_EXEC, "run xsvf <file> [virt2] [quiet]");

return ERROR_OK;
}
@@ -288,6 +294,8 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
int unsupported = 0;
int tdo_mismatch = 0;
int result;
int verbose = 1;
char* filename;

int runtest_requires_tck = 0; /* a flag telling whether to clock TCK during waits, or simply sleep, controled by virt2 */

@@ -300,10 +308,12 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha

if (argc < 2)
{
command_print(cmd_ctx, "usage: xsvf <device#|plain> <file> <variant>");
command_print(cmd_ctx, "usage: xsvf <device#|plain> <file> [<variant>] [quiet]");
return ERROR_FAIL;
}

filename = args[1]; /* we mess with args starting point below, snapshot filename here */

if (strcmp(args[0], "plain") != 0)
{
tap = jtag_TapByString( args[0] );
@@ -314,9 +324,9 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
}
}

if ((xsvf_fd = open(args[1], O_RDONLY)) < 0)
if ((xsvf_fd = open(filename, O_RDONLY)) < 0)
{
command_print(cmd_ctx, "file \"%s\" not found", args[1]);
command_print(cmd_ctx, "file \"%s\" not found", filename);
return ERROR_FAIL;
}

@@ -324,9 +334,16 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
if ((argc > 2) && (strcmp(args[2], "virt2") == 0))
{
runtest_requires_tck = 1;
--argc;
++args;
}

if ((argc > 2) && (strcmp(args[2], "quiet") == 0))
{
verbose = 0;
}

LOG_USER("xsvf processing file: \"%s\"", args[1]);
LOG_USER("xsvf processing file: \"%s\"", filename);

while( read(xsvf_fd, &opcode, 1) > 0 )
{
@@ -462,7 +479,8 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha

jtag_add_pathmove( sizeof(exception_path)/sizeof(exception_path[0]), exception_path);

LOG_USER("%s %d retry %d", op_name, xsdrsize, attempt);
if (verbose)
LOG_USER("%s %d retry %d", op_name, xsdrsize, attempt);
}

field.tap = tap;
@@ -749,7 +767,8 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
} while (uc != 0);

comment[sizeof(comment)-1] = 0; /* regardless, terminate */
LOG_USER(comment);
if (verbose)
LOG_USER(comment);
}
break;

@@ -918,20 +937,24 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
{
scan_field_t field;

xsvf_add_statemove( loop_state );
jtag_add_clocks(loop_clocks);
jtag_add_sleep(loop_usecs);

field.tap = tap;
field.num_bits = xsdrsize;
field.out_value = dr_out_buf;
field.out_mask = NULL;
field.in_value = NULL;

if (attempt > 0)
if (attempt > 0 && verbose)
LOG_USER("LSDR retry %d", attempt);

jtag_set_check_value(&field, dr_in_buf, dr_in_mask, NULL);
if (tap == NULL)
jtag_add_plain_dr_scan(1, &field, loop_state);
jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE);
else
jtag_add_dr_scan(1, &field, loop_state);
jtag_add_dr_scan(1, &field, TAP_DRPAUSE);

/* LOG_DEBUG("FLUSHING QUEUE"); */
result = jtag_execute_queue();
@@ -940,9 +963,6 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
matched = 1;
break;
}

jtag_add_clocks(loop_clocks);
jtag_add_sleep(loop_usecs);
}

if (!matched )
@@ -954,6 +974,34 @@ static int handle_xsvf_command(struct command_context_s *cmd_ctx, char *cmd, cha
}
break;

case XTRST:
{
u8 trst_mode;

if (read(xsvf_fd, &trst_mode, 1) < 0)
{
do_abort = 1;
break;
}

switch( trst_mode )
{
case XTRST_ON:
jtag_add_reset(1, 0);
break;
case XTRST_OFF:
case XTRST_Z:
jtag_add_reset(0, 0);
break;
case XTRST_ABSENT:
break;
default:
LOG_ERROR( "XTRST mode argument (0x%02X) out of range", trst_mode );
do_abort = 1;
}
}
break;

default:
LOG_ERROR("unknown xsvf command (0x%02X)\n", uc);
unsupported = 1;


Loading…
Cancel
Save