From 7cdb05b7d6fce73c96e5e7cff3838d6e9c2a07f4 Mon Sep 17 00:00:00 2001 From: oharboe Date: Thu, 28 Feb 2008 09:21:56 +0000 Subject: jtag_add_shift() fn - minidriver work in progress. git-svn-id: svn://svn.berlios.de/openocd/trunk@367 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/jtag.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'src/jtag/jtag.h') diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index e190858a..f5602f1f 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -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 */ -- cgit v1.2.3