- added mips software breakpoint support

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

diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h
index 16eeef5440c8e11eb4d297d93b1bc0f35be4a8c7..cc3c9f0af77ffcb085091e87cfa777f851d9093f 100644 (file)
--- a/src/jtag/jtag.h
+++ b/src/jtag/jtag.h
@@ -29,20 +29,21 @@
 
 #include "command.h"
 
+
 #if 0
 #define _DEBUG_JTAG_IO_
 #endif
 
 /* 16 Tap States, from page 21 of ASSET InterTech, Inc.'s svf.pdf
  */
-enum tap_state
+typedef enum tap_state
 {
        TAP_RESET = 0x0, TAP_IDLE = 0x8,
        TAP_DRSELECT = 0x1, TAP_DRCAPTURE = 0x2, TAP_DRSHIFT = 0x3, TAP_DREXIT1 = 0x4,
        TAP_DRPAUSE = 0x5, TAP_DREXIT2 = 0x6, TAP_DRUPDATE = 0x7,
        TAP_IRSELECT = 0x9, TAP_IRCAPTURE = 0xa, TAP_IRSHIFT = 0xb, TAP_IREXIT1 = 0xc,
        TAP_IRPAUSE = 0xd, TAP_IREXIT2 = 0xe, TAP_IRUPDATE = 0xf
-};
+} tap_state_t;
 
 typedef struct tap_transition_s
 {
@@ -50,7 +51,6 @@ typedef struct tap_transition_s
        enum tap_state low;
 } tap_transition_t;
 
-extern char* tap_state_strings[16];
 extern int tap_move_map[16];   /* map 16 TAP states to 6 stable states */
 extern u8 tap_move[6][6];              /* value scanned to TMS to move from one of six stable states to another */
 extern tap_transition_t tap_transitions[16];   /* describe the TAP state diagram */
@@ -113,6 +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 */
@@ -135,6 +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;
@@ -145,7 +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
@@ -435,6 +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
@@ -529,4 +548,11 @@ static __inline__ void jtag_add_dr_out(jtag_tap_t *tap,
        interface_jtag_add_dr_out(tap, num_fields, num_bits, value, cmd_queue_end_state);
 }
 
+/**
+ * Function jtag_state_name
+ * Returns a string suitable for display representing the JTAG tap_state
+ */
+const char* jtag_state_name(enum tap_state state);
+
+
 #endif /* JTAG_H */