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
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
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
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
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
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
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
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
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
Add another board ... OMAP2420 "H4" board. This won't be very widely
used with OpenOCD, but with mainline support in both U-Boot and Linux
it at least makes for a more complete set (and another testcase).
This is incomplete support in several respects. The ARM11 support is
not very deep yet; most registers aren't available, and the ETM can't
be hooked up. Plus, there's no script for OMAP-specific stuff like
setting up the SDRAM controller. Eventually the same NAND controller
driver should work with OMAP2 and OMAP3.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2242 b42882b7-edfa-0310-969c-e2dbd0fdcd60
OpenOCD doesn't actually *need* to be keeping all TCP ports
active ... creating security issues in some network configs.
Instead, let config file specify e.g. "tcl_port 0" (or gdb_port,
telnet_port) to disable that particular remote access method.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2240 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Make fast_load_image use the helper coverage the standard load_image.
- Improve whitespace in the moved lines.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2239 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Simplify argument parsing logic using switch statement.
- Use parse_u32 to ensure all values parse properly.
- Return syntax error when mode argument fails to parse.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2236 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Bug fix: return syntax error if remove called without one argument.
- Use parse_u32 to ensure address and length arguments parse properly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2235 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Change: All local variable types are now unsigned.
- Use parse_u32 to ensure address and value parse properly.
- Use parse_uint to ensure count parses properly.
- Move variables to location of first use.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2231 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use parse_u32 and parse_uint for address and count, respectively.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2230 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Make argument check use parse_uint to ensure value parses properly.
- Move variable declarations to location of first use.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2228 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use unsigned type for delay variable.
- Use parse_uint to ensure delay argument parses properly.
- Bug fix: Return syntax error if more than one argument is given.
- Bug fix: Return syntax error when argument fails to parse.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2227 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Currently the "debug_level 3" command tracing ignores commands
that could return values to TCL scripts (by plugging in to a
slightly lower level of the interpreter stack).
Fix that by abstracting the tracing command and starting to
make some of those previously-untraced commands use this new
mechanism.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2224 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Move the discussion of the "scan_chain" command up to go with
the presentation of that topic in the TAP declaration chapter.
This makes the presentation of the TAP and target lists be
parallel, which will be something of an aid to understanding
that they are different (and how).
git-svn-id: svn://svn.berlios.de/openocd/trunk@2223 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Partial fix to the "long IR length" problems.
- Current code could handle up to 32 bit IR lengths with
full functionality, if it didn't just reject may of them
out of hand. So only reject clear errors, where the IR
mask (or capture instruction) needs more than IrLen bits.
- Longer IR lengths can only be handled in BYPASS mode
for now. Example: TI's DSPs use 38-bit IR lengths.
So we can't issue their IDCODE instructions...
A more complete fix would be able to issue longer instructions;
or minimally, would fail cleanly for the non-BYPASS case.
Note that this *could* make some currently broken scripts fail,
since the previous code accepted garbage values so long as
they didn't use more than 16 bits.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2222 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Move the mips32_..._read_mem calls to top-level of read_mem function.
- Change: Only perform mips_m4k_read_mem conversion when retval == ERROR_OK.
- Prevents pointless conversions of bogus read values after failures.
- Eliminate retval variable from mips_m4k_write_mem; return directly.
- Move declaration of retval variable to point of first use.
- Remove the now redundant switch statements testing size:
- argument sanitizing already covers these cases.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2220 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This patch helps fix MIPS big endian (elf32-tradbigmips) targets.
If "-endian big" is not set in target create, the endianess defaults to
little. mw and md commands will still work, but binary file loads will
have the incorrect word order loaded into memory.
The EJTAG processor access data register (PrAcc) is little endian
regardless of the CPU endianness; it is always loaded LSB first. This
is confirmed by the fact that mips_ejtag_drscan_32() uses buf_set_u32()
to load the scan field; buf_set_u32() is a little-endian formatter. For
big endian targets, data buffers have to be modified so the LSB of each
u32 or u16 is at the lower (first) memory location. If the drscan
out_value word order is set using buf_set_u32() then it makes sense to
also fixup the in_value with buf_get_u32(); a symmetry argument. This
has no affect on little endian hosts.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2219 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use the default KHz speed setting, in case interface is not initialized.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2218 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Bug fix: Always clear high bit of USB bulk out endpoint.
- Use parse_ulong helpers to ensure numeric strings are parsed properly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2217 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use parse_uint helper to ensure argument is parsed properly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2216 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Bug fix: Return a syntax error when less than two arguments are given.
- Bug fix: Use parse_u16 helper to ensure vales are parsed properly.
- Simplify loop termination logic by ensuring argc is always even.
- Move loop induction variable declaration to where it is used.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2215 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use parse_u32 helper to ensure scan values are parsed properly.
- Clear the fields buffer to ensure partial cleanup occur correctly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2214 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Show the port number to the user when asking for it or setting it.
- Print an error if the parport_port has already been set.
- Use parse_u16 helper to ensure the parport_port string parses correctly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2211 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Show the port number to the user when asking for it or setting it.
- Print an error if the amt_jtagaccel_port has already been set.
- Use parse_u16 helper to ensure amt_jtagaccel_port string parses correctly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2210 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Show the port number to the user when asking for it or setting it.
- Print an error if the parport_port has already been set.
- Use parse_u16 helper to ensure the parport_port string parses correctly.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2209 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Bug fix: Return a syntax error if more than one argument is given.
- Bug fix: Use new parse_uint helper ensure debug_level parses correctly.
- Change: Display the debug_level after it has been set.
- Simplify bounds checking of debug_level.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2208 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Use new parse_ulong to ensure duration parses as a valid number.
- Rework logic to improve readability and seliminate uperfluous braces.
- Change whitespace to improve style.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2207 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Used to improve command argument parsing of unsigned integers values.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2206 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Minor bugfix: command_print_sameline() is what the
headers declare; make the code match.
Minor improvement: make the printf format params always be const.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2205 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Rework the "Simple Configuration Files" chapter so it's more
of a quick-start "how to set up your project" tutorial:
- Say how to hook up the JTAG adapter. This will help new
users, and in any case is worth spelling out somewhere.
- Streamline the previous rather haphazard presentation,
filling in some missing holes along the way:
* Suggest "project directory" structure
* Introduce new term, "user config" file (openocd.cfg)
* Talk about more options for openocd.cfg contents
* ... and about creating new config files
* Add new topic, project-specific utilities (+examples)
- Remove too-short, yet duplicative, chapter 19
Nudge packagers a bit more strongly to send patches (including
config files) upstream.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2204 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Update "arm9tdmi vector_catch" command description to highlight both
use cases (display configuration, or first change that config) and
to explain a bit more about what this is: an alternative to using
hardware breakpoint resources.
Note that I tried this on an arm920t, but it didn't work. Set bits,
then examined them and they weren't set. And it didn't seem to act
as if vector triggering was noticed, either.
Also some minor unrelated tweaks: @ignore some unused or don't-use
event names; fix a few typos; tweak chip-specific reset descriptions.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2203 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Original patch submitted by David Claffey [dnclaffey@gmail.com].
git-svn-id: svn://svn.berlios.de/openocd/trunk@2202 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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