diff options
Diffstat (limited to 'src/jtag/jtag.h')
| -rw-r--r-- | src/jtag/jtag.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 82fa061b..cc3c9f0a 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -29,6 +29,7 @@ #include "command.h" + #if 0 #define _DEBUG_JTAG_IO_ #endif @@ -112,6 +113,13 @@ typedef struct runtest_command_s enum tap_state end_state; /* TAP state in which JTAG commands should finish */ } runtest_command_t; + +typedef struct stableclocks_command_s +{ + int num_cycles; /* number of clock cycles that should be sent */ +} stableclocks_command_t; + + typedef struct reset_command_s { int trst; /* trst/srst 0: deassert, 1: assert, -1: don't change */ @@ -134,6 +142,7 @@ typedef union jtag_command_container_u statemove_command_t *statemove; pathmove_command_t *pathmove; runtest_command_t *runtest; + stableclocks_command_t *stableclocks; reset_command_t *reset; end_state_command_t *end_state; sleep_command_t *sleep; @@ -144,7 +153,8 @@ enum jtag_command_type JTAG_SCAN = 1, JTAG_STATEMOVE = 2, JTAG_RUNTEST = 3, JTAG_RESET = 4, JTAG_END_STATE = 5, - JTAG_PATHMOVE = 6, JTAG_SLEEP = 7 + JTAG_PATHMOVE = 6, JTAG_SLEEP = 7, + JTAG_STABLECLOCKS = 8 }; typedef struct jtag_command_s @@ -434,6 +444,16 @@ extern int interface_jtag_add_end_state(enum tap_state endstate); extern void jtag_add_sleep(u32 us); extern int interface_jtag_add_sleep(u32 us); + +/** + * Function jtag_add_stable_clocks + * first checks that the state in which the clocks are to be issued is + * stable, then queues up clock_count clocks for transmission. + */ +void jtag_add_clocks( int num_cycles ); +int interface_jtag_add_clocks( int num_cycles ); + + /* * For software FIFO implementations, the queued commands can be executed * during this call or earlier. A sw queue might decide to push out |