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soc: arm: rpi_pico: Add basic support for binary info feature
Enable embedding binary info to flash. As a default, information collects from the build configuration. It can override by the Kconfig configurations, such as ``` CONFIG_RP2_BINARY_INFO_PROGRAM_NAME_OVERRIDE=y CONFIG_RP2_BINARY_INFO_PROGRAM_NAME="my program name" ``` Signed-off-by: TOKITA Hiroshi <[email protected]>
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‎doc/hardware/pinctrl/index.rst‎

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@@ -500,6 +500,40 @@ Dynamic pin control
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.. doxygengroup:: pinctrl_interface_dynamic
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Raspberry Pi Pico binary info helpers
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=====================================
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The Raspberry Pi Pico port emits a ``binary_info`` section that mirrors the
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Devicetree pin controller layout. The helper macros introduced in
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``soc/raspberrypi/rpi_pico/common/binary_info.c`` use a consistent naming
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scheme to make each level of the traversal explicit:
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``RP2_BI_PINCTRL_GROUP_PIN_COUNT``
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Operates on a *group node* (a child of ``DT_NODELABEL(pinctrl)``) and
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reports how many encoded pins belong to that group.
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``RP2_BI_PINCTRL_GROUP_OFFSET``
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Computes the running total of pins for the parent ``pinctrl`` node so that
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per-group data can be placed back-to-back in the emitted structure.
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``RP2_BI_PINCTRL_FOREACH_GROUP``
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Iterates the hierarchy of groups and their ``pinmux`` entries. The name
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follows the Devicetree nesting order: pin controller → group → pin.
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``RP2_BI_PINCTRL_ENCODE_GROUP_PINS``
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Uses the above helpers to encode every pin in a group, ensuring that the
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binary layout follows the Devicetree ordering.
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``RP2_BI_DECLARE_PIN_GROUP``
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Performs validation (pin count limits, uniform function selection) before
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emitting the ``binary_info`` declaration for a group.
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The macros form a readable pipeline: pin counts feed offset calculations, which
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feed the encoder, which is wrapped by the declaration helper. This hierarchy
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matches the Devicetree structure and makes it easier to reason about future
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updates to the ``binary_info`` feature.
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Other reference material
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************************
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‎soc/raspberrypi/rpi_pico/common/CMakeLists.txt‎

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)
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zephyr_sources_ifdef(CONFIG_RPI_PICO_ROM_BOOTLOADER rom_bootloader.c)
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zephyr_library_sources_ifdef(CONFIG_RPI_PICO_BINARY_INFO
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binary_info.c
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binary_info_header.S
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)
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zephyr_linker_sources_ifdef(CONFIG_RPI_PICO_BINARY_INFO
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ROM_START SORT_KEY 0x0binary_info_header binary_info_header.ld
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)
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zephyr_linker_sources_ifdef(CONFIG_RPI_PICO_BINARY_INFO
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RODATA binary_info.ld
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)

‎soc/raspberrypi/rpi_pico/common/Kconfig‎

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# Copyright (c) 2024 TOKITA Hiroshi
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# SPDX-License-Identifier: Apache-2.0
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config RPI_PICO_BINARY_INFO
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bool "Generate RaspberryPi Pico binary info"
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default y
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help
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Binary info is able to embed machine readable information with the binary in FLASH.
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It can read with picotool(https://github.com/raspberrypi/picotool).
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if RPI_PICO_BINARY_INFO
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config RPI_PICO_BINARY_INFO_PROGRAM_NAME_ENABLE
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bool "Override program name in binary info"
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config RPI_PICO_BINARY_INFO_PROGRAM_NAME
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string "Override string for program name in binary info"
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depends on RPI_PICO_BINARY_INFO_PROGRAM_NAME_ENABLE
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config RPI_PICO_BINARY_INFO_PROGRAM_URL_ENABLE
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bool "Override program url in binary info"
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config RPI_PICO_BINARY_INFO_PROGRAM_URL
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string "String for program description in binary info"
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depends on RPI_PICO_BINARY_INFO_PROGRAM_URL_ENABLE
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config RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION_ENABLE
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bool "Override program descrpition in binary info"
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config RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION
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string "String for program description in binary info"
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depends on RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION_ENABLE
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config RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE_ENABLE
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bool "Override build date in binary info"
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config RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE
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string "Override string for build date in binary info"
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depends on RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE_ENABLE
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config RPI_PICO_BINARY_INFO_PROGRAM_VERSION_STRING_ENABLE
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bool "Override program version in binary info"
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default y
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config RPI_PICO_BINARY_INFO_SDK_VERSION_STRING_ENABLE
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bool "Override sdk version in binary info"
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default y
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config RPI_PICO_BINARY_INFO_PICO_BOARD_ENABLE
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bool "Override board in binary info"
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default y
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config RPI_PICO_BINARY_INFO_ATTRIBUTE_BUILD_TYPE_ENABLE
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bool "Override board in binary info"
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default y
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config RPI_PICO_BINARY_INFO_BOOT_STAGE2_NAME_ENABLE
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bool "Override board in binary info"
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default y
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config RPI_PICO_BINARY_INFO_PINS_WITH_FUNC_ENABLE
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bool "Override board in binary info"
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default y
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endif

‎soc/raspberrypi/rpi_pico/common/binary_info.c‎

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/*
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* Copyright (c) 2023 TOKITA Hiroshi <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/sys/util_macro.h>
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#include <zephyr/dt-bindings/pinctrl/rpi-pico-pinctrl-common.h>
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#include <soc.h>
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#include <boot_stage2/config.h>
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#include <pico/binary_info.h>
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#include <version.h>
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#ifdef HAS_APP_VERSION
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#include <app_version.h>
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#endif
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/* utils for pin encoding calcluation */
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#ifdef CONFIG_SOC_RP2040
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#define ENCODE_PIN(n, idx, off) ((uint32_t)PIN_NUMBER(n, idx) << (2 + (idx + off + 1) * 5))
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#define MAX_PIN_ENTRIES 4
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#define ENCODE_PINS_WITH_FUNC __bi_encoded_pins_with_func
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#else
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#define ENCODE_PIN(n, idx, off) ((uint64_t)PIN_NUMBER(n, idx) << ((idx + off + 1) * 8))
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#define MAX_PIN_ENTRIES 6
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#define ENCODE_PINS_WITH_FUNC __bi_encoded_pins_64_with_func
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#endif
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#define PIN_NUMBER(n, idx) ((DT_PROP_BY_IDX(n, pinmux, idx) >> RP2_PIN_NUM_POS) & RP2_PIN_NUM_MASK)
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#define PIN_FUNCTION(n, idx) (DT_PROP_BY_IDX(n, pinmux, idx) & RP2_ALT_FUNC_MASK)
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/* Pin counts and offs for groups */
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#define PIN_GROUP_COUNT(node_id) \
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COND_CODE_1(DT_NODE_HAS_PROP(node_id, pinmux), (DT_PROP_LEN(node_id, pinmux)), (0))
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#define PIN_GROUP_COUNT_MATCH(child, idx) \
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COND_CODE_1(IS_EQ(DT_NODE_CHILD_IDX(child), idx), (PIN_GROUP_COUNT(child)), (0))
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#define PIN_GROUP_COUNT_BY_INDEX(node_id, idx) \
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/* \
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* The raspberrypi,pico-pinctrl child binding does not permit a "status" \
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* property, so the STATUS_OK iterator still visits every group. \
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*/ \
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(DT_FOREACH_CHILD_STATUS_OKAY_SEP_VARGS(node_id, PIN_GROUP_COUNT_MATCH, (+), idx))
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#define PIN_GROUP_OFFSET_TERM(i, node_id) +PIN_GROUP_COUNT_BY_INDEX(node_id, i)
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#define PIN_GROUP_OFFSET(node_id, count) (0 LISTIFY(count, PIN_GROUP_OFFSET_TERM, (), node_id))
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#define PIN_GROUP_AMOUNT(node_id) PIN_GROUP_OFFSET(node_id, DT_CHILD_NUM(node_id))
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/* Iterate groups and subgroups */
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#define FOREACH_PIN_GROUP_ENTRY(n, fn, sep, ...) \
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DT_FOREACH_PROP_ELEM_SEP_VARGS(n, pinmux, fn, sep, __VA_ARGS__)
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#define FOREACH_PIN_GROUP(n, sep, fn, ...) \
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DT_FOREACH_CHILD_SEP_VARGS(n, FOREACH_PIN_GROUP_ENTRY, sep, fn, sep, __VA_ARGS__)
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/* Encode the pins in a group */
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#define IS_LAST_PIN(end, idx, off) (((idx) + (off) + 1) == (end))
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#define PIN_TERMINATE(n, p, i, off, end) \
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(IS_LAST_PIN(end, i, off) ? ENCODE_PIN(n, i, (off) + 1) : 0)
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#define PIN_ENTRY(n, p, i, off) (DT_PROP_HAS_IDX(n, p, i) ? ENCODE_PIN(n, i, off) : 0)
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#define PIN_ENCODE_PIN(n, p, i, end) \
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PIN_ENTRY(n, p, i, PIN_GROUP_OFFSET(DT_PARENT(n), DT_NODE_CHILD_IDX(n))) | \
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PIN_TERMINATE(n, p, i, PIN_GROUP_OFFSET(DT_PARENT(n), DT_NODE_CHILD_IDX(n)), end)
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#define ENCODE_GROUP_PINS(n) (FOREACH_PIN_GROUP(n, (|), PIN_ENCODE_PIN, PIN_GROUP_AMOUNT(n)))
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/* Get group-wide pin functions */
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#define PIN_FUNC(n, p, i, _) PIN_FUNCTION(n, i)
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#define PIN_GROUP_FUNC(n) (FOREACH_PIN_GROUP(n, (|), PIN_FUNC))
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#define PIN_GROUP_FUNC_OFFSET 3
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#define PIN_GROUP_HEADER(n) (BI_PINS_ENCODING_MULTI | (PIN_GROUP_FUNC(n) << PIN_GROUP_FUNC_OFFSET))
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/* Check if pin functions are all equal within a group */
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#define PIN_FUNC_IS(n, p, i, func) (PIN_FUNCTION(n, i) == func)
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#define ALL_PINS_FUNC_IS(n, pinfunc) (FOREACH_PIN_GROUP(n, (&&), PIN_FUNC_IS, pinfunc))
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#define DECLARE_PIN_GROUP(n) \
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BUILD_ASSERT(PIN_GROUP_AMOUNT(n) > 0, "Group must contain at least one pin"); \
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BUILD_ASSERT(PIN_GROUP_AMOUNT(n) <= MAX_PIN_ENTRIES, "Too many pins in group"); \
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BUILD_ASSERT(ALL_PINS_FUNC_IS(n, PIN_GROUP_FUNC(n)), \
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"Group pins must share identical function"); \
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bi_decl(ENCODE_PINS_WITH_FUNC(PIN_GROUP_HEADER(n) | ENCODE_GROUP_PINS(n)))
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#define PIN_GROUP_MATCH(child, idx) \
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COND_CODE_1(IS_EQ(DT_NODE_CHILD_IDX(child), idx), (DECLARE_PIN_GROUP(child)), ())
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#define PIN_DECLARE_GROUP_BY_INDEX(node_id, idx) \
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DT_FOREACH_CHILD_VARGS(node_id, PIN_GROUP_MATCH, idx)
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_NAME
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#define BI_PROGRAM_NAME CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_NAME
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION
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#define BI_PROGRAM_DESCRIPTION CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_URL
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#define BI_PROGRAM_URL CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_URL
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE
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#define BI_PROGRAM_BUILD_DATE CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE
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#else
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#define BI_PROGRAM_BUILD_DATE __DATE__
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#endif
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extern uint32_t __rom_region_end;
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bi_decl(bi_binary_end((intptr_t)&__rom_region_end));
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_NAME_ENABLE
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bi_decl(bi_program_name((uint32_t)BI_PROGRAM_NAME));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PICO_BOARD_ENABLE
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bi_decl(bi_string(BINARY_INFO_TAG_RASPBERRY_PI, BINARY_INFO_ID_RP_PICO_BOARD,
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(uint32_t)CONFIG_BOARD));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_SDK_VERSION_STRING_ENABLE
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bi_decl(bi_string(BINARY_INFO_TAG_RASPBERRY_PI, BINARY_INFO_ID_RP_SDK_VERSION,
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(uint32_t)"zephyr-" STRINGIFY(BUILD_VERSION)));
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#endif
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#if defined(CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_VERSION_STRING_ENABLE) && defined(HAS_APP_VERSION)
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bi_decl(bi_program_version_string((uint32_t)APP_VERSION_EXTENDED_STRING));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_DESCRIPTION_ENABLE
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bi_decl(bi_program_description((uint32_t)BI_PROGRAM_DESCRIPTION));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_URL_ENABLE
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bi_decl(bi_program_url((uint32_t)BI_PROGRAM_URL));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PROGRAM_BUILD_DATE_ENABLE
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bi_decl(bi_program_build_date_string((uint32_t)BI_PROGRAM_BUILD_DATE));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_BOOT_STAGE2_NAME_ENABLE
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bi_decl(bi_string(BINARY_INFO_TAG_RASPBERRY_PI, BINARY_INFO_ID_RP_BOOT2_NAME,
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(uint32_t)PICO_BOOT_STAGE2_NAME));
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_ATTRIBUTE_BUILD_TYPE_ENABLE
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#ifdef CONFIG_DEBUG
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bi_decl(bi_program_build_attribute((uint32_t)"Debug"));
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#else
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bi_decl(bi_program_build_attribute((uint32_t)"Release"));
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#endif
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#endif
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#ifdef CONFIG_RPI_PICO_BINARY_INFO_PINS_WITH_FUNC_ENABLE
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#if DT_NODE_EXISTS(DT_NODELABEL(pinctrl))
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/*
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* The Raspberry Pi Pico SDK ``bi_decl`` macro derives unique symbol names from
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* ``__LINE__``. Keep each instantiation on a dedicated source line rather
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* than using DT_FOREACH_CHILD, which would expand every group on the same line
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* and violate the uniqueness requirement.
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*/
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 0
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 0);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 1
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 1);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 2
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 2);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 3
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 3);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 4
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 4);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 5
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 5);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 6
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 6);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 7
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 7);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 8
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 8);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 9
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 9);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 10
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 10);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 11
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 11);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 12
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 12);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 13
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 13);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 14
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 14);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 15
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 15);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 16
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 16);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 17
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 17);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 18
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 18);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 19
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 19);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 20
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 20);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 21
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 21);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 22
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 22);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 23
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 23);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 24
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 24);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 25
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 25);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 26
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 26);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 27
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 27);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 28
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 28);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 29
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 29);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 30
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 30);
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#endif
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#if DT_CHILD_NUM(DT_NODELABEL(pinctrl)) > 31
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PIN_DECLARE_GROUP_BY_INDEX(DT_NODELABEL(pinctrl), 31);
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#endif
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#endif /* DT_NODE_EXISTS(DT_NODELABEL(pinctrl)) */
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#endif /* CONFIG_RPI_PICO_BINARY_INFO_PINS_WITH_FUNC_ENABLE */

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