| Commit message (Collapse) | Author | Age | Files | Lines |
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This removes context-sensitivity from the programming interface and makes
it possible to know what a block of code does without needing to know the
previous history (specifically, the DAP's "trans_mode" setting).
The mode was only set to ATOMIC briefly after DAP initialization, making
this patch be primarily cleanup; almost everything depends on COMPOSITE.
The transactions which shouldn't have been queued were already properly
flushing the queue.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Handling of AP (and AP register bank) selection, and cached AP
registers, is pretty loose ... start tightening it:
- It's "AP bank" select support ... there are no DP banks. Rename.
+ dap_dp_bankselect() becomes dap_ap_bankselect()
+ "dp_select_value" struct field becomes "ap_bank_value"
- Remove duplicate AP cache init paths ... only use dap_ap_select(),
and don't make Cortex (A8 or M3) cores roll their own code.
- For dap_ap_bankselect(), pass up any fault code from writing
the SELECT register. (Nothing yet checks those codes.)
- Add various bits of Doxygen
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Provide doxygen for many of the public ADIv5 interfaces (i.e. the ones
called from Cortex core support code).
Add FIXMEs (and a TODO) to help resolve implementation issues which
became more apparent when trying to document this code:
- Error-prone context-sensitivity (queued/nonqueued) in many procedures.
- Procedures that lie by ignoring errors and wrongly claiming success.
Also, there was no point in a return from dap_ap_select(); it can't fail,
and no caller checks its return status. Clean that up, make it void.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Make messages reference "DAP" if they're actually transport-agnostic, or
"JTAG-DP" when they're JTAG-specific. Saying SWJ-DP is often wrong (on
most Cortex-A8 chips) and is confusing even if correct (since we don't
yet support SWD).
Rename a JTAG-specific routine to jtagdp_transaction_endcheck() to highlight
that it's JTAG-specific, and that identify DAP clients undesirably depending
on JTAG. (They will all need to change for SWD support.)
Shrink a few overlong lines of code. Copy a comment from code removed
in a previous patch (for the ARMv7-M "dap baseaddr" command).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Update the comments about DP registers and some of the bitfields.
Remove inappropriate (and unused) DP_ZERO declaration.
Add some (currently unused) #defines needed for SWD protocol support,
based on previous patches from Andreas Fritiofson and Simon Qian.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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JTAG has only two possible JTAG ack codes for APACC and DPACC
register reads/writes. Define them, and remove empty "else"
clause in the code which now uses those codes.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Rename DAP_IR_* as JTAG_DP_* since those symbols are specifically
for JTAG-DP (or SWJ-DP in JTAG mode), and won't work with SWD.
Define the JTAG ABORT and IDCODE instructions for completeness;
add a comment about where to (someday) use ABORT.
Fix messaging which assumes everything is an SWJ-DP; say "JTAG-DP"
instead, it's at least more appropriate for all JTAG transports.
Shrink the affected lines.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Make some private functions "static". Remove their public declarations,
and what is now an obviously unused function. Shrinks this object's size
(about 5% on x86_64) while making the code's scope easier to understand.
Shrink the affected lines.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Instead of magic numbers, use their AP_REG_* constants. Rename
the ROM address symbol as BASE to match ARM's documentation.
Comment various other symbols in the header; add some missing ones.
Remove an unused struct. Add some doxygen for stuff including the
DAP structure and initialization.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Make these ".h" files adopt the same policy the ".c" files already
follow: don't use <subsystem/...h> syntax for private interfaces.
If we ever get reviewed/supported "public" interfaces they should
come exclusively from some include/... directory; that'll be the
time to switch to <...> syntax for any subsystem's own interfaces.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Changes from the flat namespace to heirarchical one. Instead of writing:
#include "arm_jtag.h"
the following form should be used.
#include <target/arm_jtag.h>
The exception is from .c files in the same directory.
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Don't include "target.h" from more headers than necessary. This
avoids needless interdependencies and duplicated include paths.
Don't needlessly include it in source files, either.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Same deal: "register.h" got needlessly included all over the
place because of being in a few widely included headers.
So take it out of the header files which included it, and put
it in files which use it ... reduce needless interdependencies.
Also, don't need that extra "types.h" inclusion.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove misleading typedef and redundant suffix from struct command_context.
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Remove misleading typedef and redundant suffix from struct arm_jtag.
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Remove misleading typedef and redundant suffix from struct swjdp_common.
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Remove misleading typedef and redundant suffix from struct swjdp_reg.
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Rewrites the dap_* command helpers to use the COMMAND_HELPER paradigm.
Uses CALL_COMMAND_HELPER to hide inherited calling conventions.
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Remove extern keywords from function prototypes and wrap long lines.
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David Brownell <david-b@pacbell.net>:
Move the dap command handler implementations to arm_adi_v5.c,
leaving just thin wrappers in armv7m.c. There should be no
change in functionality here. (From Magnus.)
Minor style cleanup: whitespace, line length, etc. Update spec
references to use docs which are currently available. (From Dave.)
git-svn-id: svn://svn.berlios.de/openocd/trunk@2544 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\s*$' with ''.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2379 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '([ \t]*' with '('.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2376 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace ')\(<<\)\(\w\)' with ') \1 \2'.
- Replace '\(\w\)\(<<\)(' with '\1 \2 ('.
- Replace '\(\w\)\(<<\)\(\w\)' with '\1 \2 \3'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2370 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\([^_]\)u32' with '\1uint32_t'.
- Replace '^u32' with 'uint32_t'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2278 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\([^_]\)u8' with '\1uint8_t'.
- Replace '^u8' with 'uint8_t'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2274 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- set TAR size to 12 bits for Cortex-M3.
- Original patch submitted by Magnus Lundin [lundin@mlu.mine.nu].
git-svn-id: svn://svn.berlios.de/openocd/trunk@2051 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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swjdp_common_t *swjdp instead of arm_jtag_t *jtag_info
- change SWJDP_IR/DR_APACC to DAP_IR/DR_APACC to conform with ARM_ADI docs.
- add swjdp->memaccess_tck field and code for extra tck clocks before accessing memory bus
- Set default memaccess value to 8 for Cortex-M3.
- Add dap memaccess command.
- document all armv7 dap cmds.
- Original patch submitted by Magnus Lundin [lundin@mlu.mine.nu].
git-svn-id: svn://svn.berlios.de/openocd/trunk@2005 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1547 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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Debug Interface rev 5 documentation and remoed code specific to the Cortex-M3 targets.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1535 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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