Add ST-Link/OpenOCD support as a programmer

Author: GrumpyOldPizza

boards.txt

@@ -28,6 +28,7 @@ dragonfly.build.arch=STM32L4
 dragonfly.build.core=stm32l4
 dragonfly.build.extra_flags=-DSTM32L476xx -D__FPU_PRESENT=1 -march=armv7e-m -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mabi=aapcs -mslow-flash-data -fsingle-precision-constant
 dragonfly.build.ldscript=linker_scripts/STM32L476RE_FLASH.ld
+dragonfly.build.openocdscript=openocd_scripts/stm32l476re_dragonfly.cfg
 dragonfly.build.variant=STM32L476RE-Dragonfly
 dragonfly.build.variant_system_libs="-L{build.variant.path}" "-L{runtime.platform.path}/system/CMSIS/Lib" -lstm32l476 -larm_cortexM4lf_math
 dragonfly.build.variant_system_include="-I{runtime.platform.path}/system/CMSIS/Include" "-I{runtime.platform.path}/system/CMSIS/Device/ST/STM32L4xx/Include" "-I{runtime.platform.path}/system/libstm32l4/USB/HAL/Inc" "-I{runtime.platform.path}/system/libstm32l4/USB/Core/Inc" "-I{runtime.platform.path}/system/libstm32l4/USB/Class/CDC/Inc" "-I{runtime.platform.path}/system/libstm32l4/USB/Class/MSC/Inc" "-I{runtime.platform.path}/system/libstm32l4/USB" "-I{runtime.platform.path}/system/libstm32l4" 

platform.txt

@@ -121,3 +121,24 @@ tools.stm32l4_upload.bootloader.params.verbose=-v
 tools.stm32l4_upload.bootloader.params.quiet=
 tools.stm32l4_upload.bootloader.pattern="{path}/{cmd}" "{runtime.platform.path}/bootloaders/{bootloader.file}"
 
+tools.openocd.path={runtime.platform.path}/tools/windows
+tools.openocd.path.macosx={runtime.platform.path}/tools/macosx
+tools.openocd.path.linux={runtime.platform.path}/tools/linux/openocd
+tools.openocd.cmd=bin/openocd
+tools.openocd.cmd.windows=bin/openocd.exe
+
+tools.openocd.upload.params.verbose=-d2
+tools.openocd.upload.params.quiet=-d0
+tools.openocd.upload.pattern="{path}/{cmd}" {upload.verbose} -s "{runtime.platform.path}/tools/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{{build.path}/{build.project_name}.bin}} verify reset; shutdown"
+
+tools.openocd.program.params.verbose=-d2
+tools.openocd.program.params.quiet=-d0
+tools.openocd.program.pattern="{path}/{cmd}" {program.verbose} -s "{runtime.platform.path}/tools/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{{build.path}/{build.project_name}.elf}} verify reset; shutdown"
+
+tools.openocd.erase.params.verbose=-d3
+tools.openocd.erase.params.quiet=-d0
+tools.openocd.erase.pattern=
+
+tools.openocd.bootloader.params.verbose=-d2
+tools.openocd.bootloader.params.quiet=-d0
+tools.openocd.bootloader.pattern="{path}/{cmd}" {program.verbose} -s "{runtime.platform.path}/tools/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{{build.path}/{build.project_name}.elf}} verify reset; shutdown"

programmers.txt

@@ -4,3 +4,10 @@ dfu.protocol=dfu
 dfu.program.protocol=
 dfu.program.tool=stm32l4_upload
 dfu.program.extra_params=
+
+stlink.name=ST-Link V2
+stlink.communication=USB
+stlink.protocol=
+stlink.program.protocol=
+stlink.program.tool=openocd
+stlink.program.extra_params=

tools/linux/openocd/bin/openocd

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+LD_LIBRARY_PATH="$(dirname "$0")/../lib" "$0.bin" "$1" "$2" "$3" "$4" "$5" "$6" "$7" "$8"
+