Commit Graph

10 Commits

Author SHA1 Message Date
Stefan Rueger 4070ca9012
Distinguish different JTAG programming modes 2022-09-20 18:36:46 +01:00
Stefan Rueger b0198a319f
Offload the programming interface info from part->flags to part->prog_modes
flags now just hold parameters of the JTAG interface and some secondary
serial, parallel, pseudo parallel info. This separation brings clarity. It
used to be hard to augur whether a part has an ISP interface:

   (part->flags & (AVRPART_HAS_PDI | AVRPART_AVR32 | AVRPART_HAS_TPI
    | AVRPART_HAS_UPDI)) == 0 && (part->flags & AVRPART_SERIALOK) != 0

or had HVSP or HVPP capability, for that matter. Now it is just, eg,

  part->prog_modes & PM_ISP
  part->prog_modes & PM_HVPP
2022-08-30 16:33:42 +01:00
Stefan Rueger c03f4a7925
Use const in PROGRAMMER function arguments where appropriate
In order to get meaningful const properties for the PROGRAMMER, AVRPART and
AVRMEM arguments, some code needed to be moved around, otherwise a network of
"tainted" assignments risked rendering nothing const:

 - Change void (*enable)(PROGRAMMER *pgm) to void (*enable)(PROGRAMMER *pgm,
   const AVRPART *p); this allows changes in the PROGRAMMER structure after
   the part is known. For example, use TPI, UPDI, PDI functions in that
   programmer appropriate to the part. This used to be done later in the
   process, eg, in the initialize() function, which "taints" all other
   programmer functions wrt const and sometimes requires other finessing with
   flags etc. Much clearer with the modified enable() interface.

 - Move TPI initpgm-type code from initialize() to enable() --- note that
   initpgm() does not have the info at the time when it is called whether or
   not TPI is required

 - buspirate.c: move pgm->flag to PDATA(pgm)->flag (so legitimate
   modification of the flag does not change PROGRAMMER structure)

 - Move AVRPART_INIT_SMC and AVRPART_WRITE bits from the flags field in
   AVRPART to jtagmkII.c's private data flags32 fiels as FLAGS32_INIT_SMC and
   FLAGS32_WRITE bits

 - Move the xbeeResetPin component to private data in stk500.c as this is
   needed by xbee when it saddles on the stk500 code (previously, the flags
   component of the part was re-dedicated to this)

 - Change the way the "chained" private data are used in jtag3.c whilst
   keeping the PROGRAMMER structure read-only otherwise

 - In stk500v2.c move the STK600 pgm update from stk500v2_initialize() to
   stk500v2_enable() so the former keeps the PROGRAMMER structure read-only
   (for const assertion).

 - In usbasp change the code from changing PROGRAMMER functions late to
   dispatching to TPI or regular SPI protocol functions at runtime; reason
   being the decision whether to use TPI protocol is done at run-time
   depending on the capability of the attached programmer

Also fixes Issue #1071, the treatment of default eecr value.
2022-08-17 16:05:28 +01:00
Stefan Rueger f4c5a8350d
Replace string arrays with const char * and allocated space (part 2)
This commit replaces fixed-string buffers in PROGRAMMER, AVRPART and AVRMEM
that are dealt with by the parser and grammar. Now, string assignments are
always to const char *, ie, these are read-only strings with arbitrary
length.

config_gram.y now only needs to consider one type of string assignment.

This commit also

  - Replaces the simple linear-search cache_string() function with faster
    hashed cache_string(). Either way, the returned value is likely to be
    shared, so should never be free()'d.

  - Duplicates hvupdi_support list in pgm_dup() and frees it in pgm_free()

  - Adds const qualifier to some function args in avrpart.c and pgm.c

  - Hardens some functions against being called with NULL pointers

  - Ensures _new() and _dup() functions for parts, programmers and memory
    return a suitable memory. Out of memory triggers exit in one of three
    functions, cfg_malloc(), cfg_realloc() and cfg_strdup(); there is
    rarely anything useful that AVRDUDE or, for that matter, any
    application compiled against libavrdude can do once you run out of
    memory as AVRDUDE/libavrdude rely heavily on allocation of memory.
2022-08-10 16:14:56 +01:00
MCUdude bfdad78fcb Add EEPROM dummy read 2022-07-19 23:44:22 +02:00
MCUdude 5904611928 Apply jtagmki patch provided in #443 2022-07-17 12:51:43 +02:00
MCUdude 80f1d96e07 Tweak programmer info formatting strings
Now all colons are on a straight line, just like #853 did to all jtag3 compatible programmers
2022-02-11 22:10:52 +01:00
Yegor Yefremov d14bb02dca Fix memory leaks
Free buf in the case of an error. Found via cppcheck.
2021-12-24 10:14:16 +01:00
Dawid Buchwald 291549d021 Merged AVRDUDES/main into SerialUPDI branch 2021-12-21 21:38:51 +01:00
Marius Greuel 5633a6d88a Move source files to 'src' folder 2021-12-17 09:17:42 +01:00