X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=TODO;h=8713e818553ce839993c987e425791fc3a4eda31;hp=709cc5a567f0ad6a6d186fbbc4c9418aa0f33917;hb=93459582fd340e4f63efed0fab9abd49a2cb6373;hpb=f21026e2f5a9683ef1c8605bb67786f17af0b2e7 diff --git a/TODO b/TODO index 709cc5a567..8713e81855 100644 --- a/TODO +++ b/TODO @@ -1,3 +1,4 @@ +// This file is part of the Doyxgen Developer Manual /** @page tasks Pending and Open Tasks This page lists pending and open tasks being considered or worked upon @@ -11,17 +12,6 @@ may have evolved an idea since it was added here. Feel free to send patches to add or clarify items on this list, too. -@section thelisttcl Regressions - -- Dominic has spotted a "reset halt" regression between 838(fails) and 729(works) - -https://lists.berlios.de/pipermail/openocd-development/2009-July/009206.html - -@section thelisttcl Bugs - -- reset run/halt/step for arm926ejs is not robust. Needs lots of testing to -map out problems. - @section thelisttcl TCL This section provides possible things to improve with OpenOCD's TCL support. @@ -33,6 +23,10 @@ This section provides possible things to improve with OpenOCD's TCL support. - provide more directory structure for boards/targets? - factor configurations into layers (encapsulation and re-use) +- Fix handling of variables between multiple command line "-c" and "-f" + parameters. Currently variables assigned through one such parameter + command/script are unset before the next one is invoked. + - Isolate all TCL command support: - Pure C CLI implementations using --disable-builtin-tcl. - Allow developers to build new dongles using OpenOCD's JTAG core. @@ -49,22 +43,48 @@ This section list issues that need to be resolved in the JTAG layer. @subsection thelistjtagcore JTAG Core -The following tasks have been suggeted for cleaning up the JTAG layer: +The following tasks have been suggested for cleaning up the JTAG layer: - use tap_set_state everywhere to allow logging TAP state transitions -- rename other tap_states to use standard JTAG names (suggested by ML) - Encapsulate cmd_queue_cur_state and related varaible handling. +- add slick 32 bit versions of jtag_add_xxx_scan() that avoids +buf_set_u32() calls and other evidence of poor impedance match between +API and calling code. New API should cut down # of lines in calling +code by 100's and make things clearer. Also potentially be supported +directly in minidriver API for better embedded host performance. The following tasks have been suggested for adding new core JTAG support: -- autodetect devices present on the scan chain - - implement 'discover_taps' command +- Improve autodetection of TAPs by supporting tcl escape procedures that + can configure discovered TAPs based on IDCODE value ... they could: + - Remove guessing for irlen + - Allow non-default irmask/ircapture values - SPI/UART emulation: - (ab)use bit-banging JTAG interfaces to emulate SPI/UART - allow SPI to program flash, MCUs, etc. @subsection thelistjtaginterfaces JTAG Interfaces +There are some known bugs to fix in JTAG adapter drivers: + +- For JTAG_STATEMOVE to TAP_RESET, all drivers must ignore the current + recorded state. The tap_get_state() call won't necessarily return + the correct value, especially at server startup. Fix is easy: in + that case, always issue five clocks with TMS high. + - amt_jtagaccel.c + - arm-jtag-ew.c + - bitbang.c + - bitq.c + - gw16012.c + - jlink.c + - usbprog.c + - vsllink.c + - rlink/rlink.c +- bug: USBprog is broken with new tms sequence; it needs 7-clock cycles. + Fix promised from Peter Denison openwrt at marshadder.org + Workaround: use "tms_sequence long" @par + https://lists.berlios.de/pipermail/openocd-development/2009-July/009426.html + The following tasks have been suggeted for improving OpenOCD's JTAG interface support: @@ -74,12 +94,21 @@ interface support: - J-Link driver: - fix to work with long scan chains, such as R.Doss's svf test. - FT2232 (libftdi): - - make performance comparable to alternatives + - make performance comparable to alternatives (on Win32, D2XX is faster) - make usability comparable to alternatives +- Autodetect USB based adapters; this should be easy on Linux. If there's + more than one, list the options; otherwise, just select that one. The following tasks have been suggested for adding new JTAG interfaces: - TCP driver: allow client/server for remote JTAG interface control. +This requires a client and a server. The server is built into the +normal OpenOCD and takes commands from the client and executes +them on the interface returning the result of TCP/IP. The client +is an OpenOCD which is built with a TCP/IP minidriver. The use +of a minidriver is required to capture all the jtag_add_xxx() +fn's at a high enough level and repackage these cmd's as +TCP/IP packets handled by the server. @section thelistswd Serial Wire Debug @@ -108,13 +137,44 @@ Once the above are completed: @section thelisttargets Target Support +- Many common ARM cores could be autodetected using IDCODE - general layer cleanup: @par https://lists.berlios.de/pipermail/openocd-development/2009-May/006590.html +- regression: "reset halt" between 729(works) and 788(fails): @par +https://lists.berlios.de/pipermail/openocd-development/2009-July/009206.html +- mcr/mrc target->type support + - missing from ARM920t, ARM966e, XScale. + It's possible that the current syntax is unable to support read-modify-write + operations(see arm966e). + - mcr/mrc - retire cp15 commands when there the mrc/mrc commands have been + tested from: arm926ejs, arm720t, cortex_a8 +- ARM7/9: + - clean up "arm9tdmi vector_catch". Available for some arm7 cores? @par +https://lists.berlios.de/pipermail/openocd-development/2009-October/011488.html +https://lists.berlios.de/pipermail/openocd-development/2009-October/011506.html + - add reset option to allow programming embedded ice while srst is asserted. + Some CPUs will gate the JTAG clock when srst is asserted and in this case, + it is necessary to program embedded ice and then assert srst afterwards. +- ARM926EJS: + - reset run/halt/step is not robust; needs testing to map out problems. - ARM11 improvements (MB?) - - fix single stepping (reported by �H) + - add support for asserting srst to reset the core. + - Single stepping works, but should automatically + use hardware stepping if available. + - mdb can return garbage data if read byte operation fails for + a memory region(16 & 32 byte access modes may be supported). Is this + a bug in the .MX31 PDK init script? Try on i.MX31 PDK: + mdw 0xb80005f0 0x8, mdh 0xb80005f0 0x10, mdb 0xb80005f0 0x20. mdb returns + garabage. - implement missing functionality (grep FNC_INFO_NOTIMPLEMENTED ...) + - thumb support is missing: ISTR ARMv6 requires Thumb. + ARM1156 has Thumb2; ARM1136 doesn't. - Cortex A8 support (ML) - add target implementation (ML) +- Generic ARM run_algorithm() interface + - tagged struct wrapping ARM instructions and metadata + - not revision-specific (current: ARMv4+ARMv5 -or- ARMv6 -or- ARMv7) + - usable with at least arm_nandwrite() and generic CFI drivers - MC1322x support (JW/DE?) - integrate and test support from JW (and DE?) - get working with a known good interface (i.e. not today's jlink) @@ -155,12 +215,19 @@ Once the above are completed: - finish implementing bus width/chip width handling (suggested by NC) - factor vendor-specific code into separate source files - add new callback interface for vendor-specific code -- investigate/implement "thin wrapper" to use eCos CFI drivers (�H) +- investigate/implement "thin wrapper" to use eCos CFI drivers (ØH) @section thelistdebug Debugger Support +- add support for masks in watchpoints? @par + https://lists.berlios.de/pipermail/openocd-development/2009-October/011507.html - breakpoints can get lost in some circumstances: @par https://lists.berlios.de/pipermail/openocd-development/2009-June/008853.html +- add support for masks in watchpoints. The trick is that GDB does not + support a breakpoint mask in the remote protocol. One way to work around + this is to add a separate command "watchpoint_mask add/rem ", that + is run to register a list of masks that the gdb_server knows to use with + a particular watchpoint address. - integrate Keil AGDI interface to OpenOCD? (submitted by Dario Vecchio) @section thelisttesting Testing Suite @@ -273,3 +340,4 @@ to complete: /** @file This file contains the @ref thelist page. */ +