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Add IRAM config for esp32 on zephyr #56

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Merged
loopj merged 1 commit into from
Sep 22, 2026
Merged

Add IRAM config for esp32 on zephyr #56

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3 changes: 3 additions & 0 deletions zephyr/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,9 @@ if(CONFIG_JOYBUS)
# Put the public headers on the include path
zephyr_include_directories(${ZEPHYR_CURRENT_MODULE_DIR}/include)

# Hand the ESP32 backend its interrupt placement choice
zephyr_compile_definitions_ifdef(CONFIG_JOYBUS_ESP32_ISR_IRAM_SAFE JOYBUS_ESP32_ISR_IRAM_SAFE=1)

# Scan those headers for the device API the drivers declare
zephyr_syscall_include_directories(${ZEPHYR_CURRENT_MODULE_DIR}/include)

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8 changes: 8 additions & 0 deletions zephyr/Kconfig
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Expand Up @@ -58,6 +58,14 @@ config JOYBUS_ESP32_INIT_PRIORITY
Device init priority, which decides where the bus comes up among the
other POST_KERNEL devices. The driver waits on no other device.

config JOYBUS_ESP32_ISR_IRAM_SAFE
bool "Keep the Joybus interrupt live during flash writes"
help
Allocate the RMT interrupt with the IRAM flag, so the bus keeps
answering while the cache is off for a flash write. Every callback
the bus invokes, and every table those read, must then live in RAM,
or the first one to run during a write faults.

endif # JOYBUS_ESP32

endif # JOYBUS
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