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jtag_add_shift() fn - minidriver work in progress.

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git-svn-id: svn://svn.berlios.de/openocd/trunk@367 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe
2008-02-28 09:21:56 +00:00
parent ebbcbd3f29
commit 7cdb05b7d6
2 changed files with 67 additions and 0 deletions
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30
src/jtag/jtag.h
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@@ -22,6 +22,7 @@
#include "types.h"
#include "binarybuffer.h"
#include "log.h"
#include "command.h"
@@ -289,6 +290,9 @@ extern int jtag_add_end_state(enum tap_state endstate);
extern int interface_jtag_add_end_state(enum tap_state endstate);
extern int jtag_add_sleep(u32 us);
extern int interface_jtag_add_sleep(u32 us);
/*
* For software FIFO implementations, the queued commands can be executed
* during this call or earlier. A sw queue might decide to push out
@@ -340,4 +344,30 @@ extern int jtag_verify_capture_ir;
#define ERROR_JTAG_DEVICE_ERROR (-107)
/* Here a #define MINIDRIVER() and an inline version of hw fifo interface_jtag_add_shift can be defined */
#ifndef MINIDRIVER
extern int interface_jtag_add_shift(const enum tap_state shift_state, const enum tap_state end_state, int bits, u32 value);
#endif
/* Enter the shift_state and cycle "bits" times out of that state.
*
* So if the end_state!=shift_state, then the transition from shift_state to
* end_state counts as a transition out of shift_state.
*
* Legal shift states TAP_SD and TAP_SI
*
* Legal end state does not include TAP_TLR
*
* Bits are clocked out from value LSB first.
*/
static __inline int jtag_add_shift(const enum tap_state shift_state, const enum tap_state end_state, int bits, u32 value)
{
int retval;
retval=interface_jtag_add_shift(shift_state, end_state, bits, value);
cmd_queue_end_state = end_state;
return retval;
}
#endif /* JTAG_H */