forked from kofal.net/zmk
147c340c6e
refactor(split): Refactor split code for extension Extract central/peripheral code to allow for plugging in alternate transports, instead of tying all split logic to BT. feat(split): Add full-duplex wired split support * Depends on full-duplex hardware UART for communication. * Supports all existing central commands/peripheral events, including sensors/inputs from peripherals. * Only one wired split peripheral supported (for now) * Relies on chosen `zmk,split-uart` referencing the UART device. docs: Add wired split config docs. Migrate split to its own dedicated config file, and add details on wired split config. Co-authored-by: Nicolas Munnich <98408764+Nick-Munnich@users.noreply.github.com> fix: Properly override stack size on RP2040 Move the system work queue stack size override on RP2040 ouf of a `ZMK_BLE` conditional so it is properly applied generally for that SoC. --------- Co-authored-by: Nicolas Munnich <98408764+Nick-Munnich@users.noreply.github.com>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
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* Copyright (c) 2025 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <zephyr/sys/ring_buffer.h>
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#include <zephyr/device.h>
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#include <zmk/split/transport/types.h>
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#define ZMK_SPLIT_WIRED_ENVELOPE_MAGIC_PREFIX "ZmKw"
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struct msg_prefix {
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uint8_t magic_prefix[sizeof(ZMK_SPLIT_WIRED_ENVELOPE_MAGIC_PREFIX) - 1];
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uint8_t payload_size;
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} __packed;
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struct command_payload {
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uint8_t source;
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struct zmk_split_transport_central_command cmd;
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} __packed;
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struct command_envelope {
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struct msg_prefix prefix;
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struct command_payload payload;
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} __packed;
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struct event_payload {
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uint8_t source;
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struct zmk_split_transport_peripheral_event event;
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} __packed;
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struct event_envelope {
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struct msg_prefix prefix;
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struct event_payload payload;
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} __packed;
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struct msg_postfix {
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uint32_t crc;
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} __packed;
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#define MSG_EXTRA_SIZE (sizeof(struct msg_prefix) + sizeof(struct msg_postfix))
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typedef void (*zmk_split_wired_process_tx_callback_t)(void);
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#if IS_ENABLED(CONFIG_ZMK_SPLIT_WIRED_UART_MODE_POLLING)
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void zmk_split_wired_poll_out(struct ring_buf *tx_buf, const struct device *uart);
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int zmk_split_wired_poll_in(struct ring_buf *rx_buf, const struct device *uart,
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struct k_work *process_data_work,
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zmk_split_wired_process_tx_callback_t process_data_cb);
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#endif
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#if IS_ENABLED(CONFIG_ZMK_SPLIT_WIRED_UART_MODE_INTERRUPT)
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void zmk_split_wired_fifo_read(const struct device *dev, struct ring_buf *buf,
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struct k_work *process_work,
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zmk_split_wired_process_tx_callback_t process_cb);
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void zmk_split_wired_fifo_fill(const struct device *dev, struct ring_buf *tx_buf);
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#endif
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#if IS_ENABLED(CONFIG_ZMK_SPLIT_WIRED_UART_MODE_ASYNC)
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struct zmk_split_wired_async_state {
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atomic_t state;
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uint8_t *rx_bufs[2];
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size_t rx_bufs_len;
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size_t rx_size_process_trigger;
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struct ring_buf *tx_buf;
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struct ring_buf *rx_buf;
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zmk_split_wired_process_tx_callback_t process_tx_callback;
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const struct device *uart;
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struct k_work_delayable restart_rx_work;
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struct k_work *process_tx_work;
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const struct gpio_dt_spec *dir_gpio;
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};
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void zmk_split_wired_async_tx(struct zmk_split_wired_async_state *state);
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int zmk_split_wired_async_init(struct zmk_split_wired_async_state *state);
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#endif
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int zmk_split_wired_get_item(struct ring_buf *rx_buf, uint8_t *env, size_t env_size); |