diff options
Diffstat (limited to 'src/jtag/core.c')
-rw-r--r-- | src/jtag/core.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/jtag/core.c b/src/jtag/core.c index b8235eb..bdfd6e5 100644 --- a/src/jtag/core.c +++ b/src/jtag/core.c @@ -137,6 +137,32 @@ int jtag_error_clear(void) return temp; } +/************/ + +static bool jtag_poll = 1; + +bool is_jtag_poll_safe(void) +{ + /* Polling can be disabled explicitly with set_enabled(false). + * It is also implicitly disabled while TRST is active and + * while SRST is gating the JTAG clock. + */ + if (!jtag_poll || jtag_trst != 0) + return false; + return jtag_srst == 0 || (jtag_reset_config & RESET_SRST_NO_GATING); +} + +bool jtag_poll_get_enabled(void) +{ + return jtag_poll; +} + +void jtag_poll_set_enabled(bool value) +{ + jtag_poll = value; +} + +/************/ jtag_tap_t *jtag_all_taps(void) { |