diff options
Diffstat (limited to 'src/jtag/drivers/dummy.c')
| -rw-r--r-- | src/jtag/drivers/dummy.c | 33 |
1 files changed, 8 insertions, 25 deletions
diff --git a/src/jtag/drivers/dummy.c b/src/jtag/drivers/dummy.c index 8b1e5ecb..be61b37d 100644 --- a/src/jtag/drivers/dummy.c +++ b/src/jtag/drivers/dummy.c @@ -17,6 +17,7 @@ * Free Software Foundation, Inc., * * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ + #ifdef HAVE_CONFIG_H #include "config.h" #endif @@ -25,17 +26,15 @@ #include "bitbang.h" #include "hello.h" - /* my private tap controller state, which tracks state for calling code */ static tap_state_t dummy_state = TAP_RESET; -static int dummy_clock; /* edge detector */ +static int dummy_clock; /* edge detector */ -static int clock_count; /* count clocks in any stable state, only stable states */ +static int clock_count; /* count clocks in any stable state, only stable states */ static uint32_t dummy_data; - static int dummy_read(void) { int data = 1 & dummy_data; @@ -43,21 +42,16 @@ static int dummy_read(void) return data; } - static void dummy_write(int tck, int tms, int tdi) { /* TAP standard: "state transitions occur on rising edge of clock" */ - if (tck != dummy_clock) - { - if (tck) - { + if (tck != dummy_clock) { + if (tck) { tap_state_t old_state = dummy_state; dummy_state = tap_state_transition(old_state, tms); - if (old_state != dummy_state) - { - if (clock_count) - { + if (old_state != dummy_state) { + if (clock_count) { LOG_DEBUG("dummy_tap: %d stable clocks", clock_count); clock_count = 0; } @@ -68,9 +62,7 @@ static void dummy_write(int tck, int tms, int tdi) if (dummy_state == TAP_DRCAPTURE) dummy_data = 0x01255043; #endif - } - else - { + } else { /* this is a stable state clock edge, no change of state here, * simply increment clock_count for subsequent logging */ @@ -102,30 +94,21 @@ static struct bitbang_interface dummy_bitbang = { .blink = &dummy_led, }; - static int dummy_khz(int khz, int *jtag_speed) { if (khz == 0) - { *jtag_speed = 0; - } else - { *jtag_speed = 64000/khz; - } return ERROR_OK; } static int dummy_speed_div(int speed, int *khz) { if (speed == 0) - { *khz = 0; - } else - { *khz = 64000/speed; - } return ERROR_OK; } |