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Dick Hollenbeck <dick@softplc.com> adds jtag_add_clocks() and implements those in the bitbang and ft2232.c. nearly a full rewrite of the xsvf.c. improved some messaging only affected by _DEBUG_JTAG_IO_

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git-svn-id: svn://svn.berlios.de/openocd/trunk@1308 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe
2009-01-09 07:42:45 +00:00
parent ebd5afbb0e
commit 9324e6280e
6 changed files with 1005 additions and 321 deletions
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41
src/jtag/dummy.c
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@@ -32,8 +32,13 @@ static tap_state_t dummy_state = TAP_RESET;
static int dummy_clock; /* edge detector */
static int clock_count; /* count clocks in any stable state, only stable states */
static tap_state_t tap_state_transition(tap_state_t cur_state, int tms);
static u32 dummy_data;
int dummy_speed(int speed);
int dummy_register_commands(struct command_context_s *cmd_ctx);
@@ -76,7 +81,9 @@ bitbang_interface_t dummy_bitbang =
int dummy_read(void)
{
return 1;
int data = 1 & dummy_data;
dummy_data = (dummy_data >> 1) | (1<<31);
return data;
}
@@ -88,9 +95,30 @@ void dummy_write(int tck, int tms, int tdi)
if( tck )
{
int old_state = dummy_state;
dummy_state = tap_state_transition( dummy_state, tms );
dummy_state = tap_state_transition( old_state, tms );
if( old_state != dummy_state )
LOG_DEBUG( "dummy_tap=%s", jtag_state_name(dummy_state) );
{
if( clock_count )
{
LOG_DEBUG("dummy_tap: %d stable clocks", clock_count);
clock_count = 0;
}
LOG_DEBUG("dummy_tap: %s", jtag_state_name(dummy_state) );
#if defined(DEBUG)
if(dummy_state == TAP_DRCAPTURE)
dummy_data = 0x01255043;
#endif
}
else
{
/* this is a stable state clock edge, no change of state here,
* simply increment clock_count for subsequent logging
*/
++clock_count;
}
}
dummy_clock = tck;
}
@@ -99,8 +127,11 @@ void dummy_write(int tck, int tms, int tdi)
void dummy_reset(int trst, int srst)
{
dummy_clock = 0;
dummy_state = TAP_RESET;
LOG_DEBUG( "reset to %s", jtag_state_name(dummy_state) );
if (trst || (srst && (jtag_reset_config & RESET_SRST_PULLS_TRST)))
dummy_state = TAP_RESET;
LOG_DEBUG("reset to: %s", jtag_state_name(dummy_state) );
}
static int dummy_khz(int khz, int *jtag_speed)