1. 18 Jun, 2009 9 commits
  2. 17 Jun, 2009 17 commits
  3. 16 Jun, 2009 10 commits
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · c928fe0f
      zwelch authored
      Fix a bug preventing ICEpick "enable that TAP" code from working:
      the "runtest" command wrongly finished with a JTAG reset, discarding
      the work the TAP enable handler just finished!  Instead, JTAG should
      stay in RUN/IDLE state.
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2252 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      c928fe0f
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · a0c10dd2
      zwelch authored
      Extend the internal JTAG event handlers to cover enable/disable,
      and use those events to make sure that targets get "examined" if
      they were disabled when the scan chain was first set up:
      
       - Remove "enum jtag_tap_event", merge with "enum jtag_event",
         so C code can now listen for TAP enable/disable events.
      
       - Report those events so they can trigger callbacks.
      
       - During startup, make target_examine() register a handler to
         catch ENABLE events for any then-disabled targets.
      
      This fixes bugs like "can't halt target after enabling its TAP".
      
      One class of unresolved bugs:  if the target has an ETM hooked
      up to an ETB, nothing activates the ETB.  But starting up the
      ETM without access to the ETB registers fails...
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2251 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      a0c10dd2
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 491083a2
      zwelch authored
      Tighten error handling on TAP enable/disable paths a bit:
      
       - Don't enable/disable unless it's necessary.  Those event
         handlers could have nasty side effects...
      
       - Don't *succeed* enables/disables if there was no code which
         could have implemented that action.  This prevents bugs like
         wrongly acting as if the scan chain changed.
      
       - Minor whitespace cleanup in enable/disable command code.
      
      The big problem is still the lack of code to verify scan chains
      were actually updated as requested; this adds a comment on that.
      I suspect the best we can do near term will be to verify IDCODE.
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2250 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      491083a2
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 0de47861
      zwelch authored
      Fix bug in a warning.  It warned about "huge IRlength" for an
      older JRC with a two bit instruction register ... wrong!
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2249 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      0de47861
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 011e9b85
      zwelch authored
      Distributing FTDI's "ftd2xx" library with OpenOCD violates the
      OpenOCD license (GNU GPLv2 with no exceptions).
      
      Make that clear where that build option is presented, and don't
      describe the FTDI libraries as an option for any packager.  (It's
      fine for personal use, of course.)
      
      Plus some related clarifications:  libftdi version 0.16 for the
      new FT2232H chips (for RTCK and high speed USB); the Amontec
      drivers are just ftd2xx variants.
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2248 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      011e9b85
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 14f88aca
      zwelch authored
      Fix some polling issues:
      
       - Don't background-poll disabled TAPs ... this was just a bug
         waiting to happen.  (And then it happened!)
      
       - Don't fail command line polls of disabled taps; that's not any
         kind of error, it's just that you can't do much.  But do show
         that tap-disabled status.
      
       - Spell "continuous" correctly in the variable name.  ;)
      
      Not resolved by this patch:  the need for an interlock whereby
      other code (like the JTAG layer) can block all other access to
      the JTAG layer, e.g. while enabling or disabling TAPs.  And
      that interlock needs to be timer-safe...
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2247 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      14f88aca
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 5f9b74d0
      zwelch authored
      Doc update:  say "jtag newtap ... -disable" records the
      state after exiting the RESET state, matching the only
      implementation we're working with so far (TI ICEpick-C).
      
      Matching code updates.  Now we can be sure that the
      "enabled" flag value is correct after JTAG resets.
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2246 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      5f9b74d0
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 03803a9d
      zwelch authored
      Fix a memory leak in jtag_tap_free():  unregister the event
      callback too.
      
      Also fix the associated conceptual bug in unregistering JTAG
      event callbacks:  since the same callback procedure is used
      many times with different callback data (a TAP handle), that
      data must be considered when unregistering any callback.
      
      This could fix some crashes after TAP registration errors,
      by making sure the reset event handler doesn't scribble over
      memory that's now used by something else.
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2245 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      03803a9d
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · c7cfb341
      zwelch authored
      Minor jtag cleanup:
      
       - remove hidden assumption about JTAG event numbering
       - move function declarations to a header
       - some end'o'line whitespace
       - use "calloc" not "malloc + memset"
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2244 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      c7cfb341
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · cc948800
      zwelch authored
      Minor updates to the text about reset configuration:
      
       - Mention a new point that it interacts with JTAG routers;
      
       - Talk about a "user" config file not a "system" one;
      
       - Remove text from the "reset_config" description; instead,
         cross-reference the more extensive text earlier.
         
      
      
      git-svn-id: svn://svn.berlios.de/openocd/trunk@2243 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      cc948800
  4. 15 Jun, 2009 2 commits
  5. 13 Jun, 2009 2 commits