interface: define TMS sequence command

[openocd.git] / src / jtag / commands.h

diff --git a/src/jtag/commands.h b/src/jtag/commands.h
index b10b545369e28643345fbc8bd7dfef4d44959258..692eee430fbf8c101a99f35ecc8f425ec9aba847 100644 (file)
--- a/src/jtag/commands.h
+++ b/src/jtag/commands.h
@@ -98,19 +98,39 @@ struct sleep_command {
        uint32_t us;
 };
 
+/**
+ * Encapsulates a series of bits to be clocked out, affecting state
+ * and mode of the interface.
+ *
+ * In JTAG mode these are clocked out on TMS, using TCK.  They may be
+ * used for link resets, transitioning between JTAG and SWD modes, or
+ * to implement JTAG state machine transitions (implementing pathmove
+ * or statemove operations).
+ *
+ * In SWD mode these are clocked out on SWDIO, using SWCLK, and are
+ * used for link resets and transitioning between SWD and JTAG modes.
+ */
+struct tms_command {
+       /** How many bits should be clocked out. */
+       unsigned        num_bits;
+       /** The bits to clock out; the LSB is bit 0 of bits[0].  */
+       const uint8_t           *bits;
+};
+
 /**
  * Defines a container type that hold a pointer to a JTAG command
  * structure of any defined type.
  */
 union jtag_command_container {
-       struct scan_command*         scan;
-       struct statemove_command*    statemove;
-       struct pathmove_command*     pathmove;
-       struct runtest_command*      runtest;
-       struct stableclocks_command* stableclocks;
-       struct reset_command*        reset;
-       struct end_state_command*    end_state;
-       struct sleep_command* sleep;
+       struct scan_command             *scan;
+       struct statemove_command        *statemove;
+       struct pathmove_command         *pathmove;
+       struct runtest_command          *runtest;
+       struct stableclocks_command     *stableclocks;
+       struct reset_command            *reset;
+       struct end_state_command        *end_state;
+       struct sleep_command            *sleep;
+       struct tms_command              *tms;
 };
 
 /**
@@ -124,7 +144,8 @@ enum jtag_command_type {
        JTAG_RESET        = 4,
        JTAG_PATHMOVE     = 6,
        JTAG_SLEEP        = 7,
-       JTAG_STABLECLOCKS = 8
+       JTAG_STABLECLOCKS = 8,
+       JTAG_TMS          = 9,
 };
 
 struct jtag_command {