diff options
author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-06-04 06:56:22 +0000 |
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committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-06-04 06:56:22 +0000 |
commit | 9ab49135c639e6ed5e3997356b54c6cf79d04985 (patch) | |
tree | 74aae898df694a9470aae207146078d3c2df7127 /src/jtag/jtag.h | |
parent | de7cb1c76b8279b9f1f08b5b26447efdb444b519 (diff) |
JTAG_TRST_ASSERTED event cleanup. More clear where and when it is invoked and some duplicate(harmless) invocations avoided.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2040 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag/jtag.h')
-rw-r--r-- | src/jtag/jtag.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 04eefaad..5fbe7dc1 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -218,6 +218,17 @@ enum reset_line_mode { LINE_PUSH_PULL = 0x1, }; +/* + * There are three cases when JTAG_TRST_ASSERTED callback is invoked. The + * event is invoked *after* TRST is asserted(or queued rather). It is illegal + * to communicate with the JTAG interface during the callback(as there is + * currently a queue being built). + * + * - TMS reset + * - SRST pulls TRST + * - TRST asserted + * + **/ enum jtag_event { JTAG_TRST_ASSERTED }; |