36eda571b7
Added BEHAVIOR_DT_DEFINE() and BEHAVIOR_DT_INST_DEFINE(), which work exactly like the DEVICE_*_DEFINE() macros, except they also register the device as a behavior by adding a pointer to it to a memory section. Added zmk_behavior_get_binding(), which works like device_get_binding() except that it only searches the devices that have been registered as behaviors. This ensures that behaviors cannot have name collisions with other devices defined by the SoC, which will be important when we remove the label property from behaviors so they are given their node names. As an added benefit, this is faster since it searches a smaller list. Some basic benchmark code I wrote indicates it takes 30-70% as long, depending on where the behavior is in the list and whether the name string is an exact pointer match. From now on, behaviors should use BEHAVIOR_*_DEFINe() instead of DEVICE_*_DEFINE(), and any code that looks up a behavior by name should use zmk_behavior_get_binding() instead of device_get_binding().
106 lines
4.5 KiB
C
106 lines
4.5 KiB
C
/*
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* Copyright (c) 2020 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#define DT_DRV_COMPAT zmk_behavior_mod_morph
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#include <zephyr/device.h>
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#include <drivers/behavior.h>
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#include <zephyr/logging/log.h>
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#include <zmk/behavior.h>
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#include <zmk/matrix.h>
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#include <zmk/endpoints.h>
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#include <zmk/event_manager.h>
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#include <zmk/events/position_state_changed.h>
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#include <zmk/events/keycode_state_changed.h>
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#include <zmk/events/modifiers_state_changed.h>
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#include <zmk/hid.h>
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LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
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#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
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struct behavior_mod_morph_config {
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struct zmk_behavior_binding normal_binding;
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struct zmk_behavior_binding morph_binding;
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zmk_mod_flags_t mods;
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zmk_mod_flags_t masked_mods;
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};
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struct behavior_mod_morph_data {
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struct zmk_behavior_binding *pressed_binding;
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};
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static int on_mod_morph_binding_pressed(struct zmk_behavior_binding *binding,
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struct zmk_behavior_binding_event event) {
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const struct device *dev = zmk_behavior_get_binding(binding->behavior_dev);
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const struct behavior_mod_morph_config *cfg = dev->config;
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struct behavior_mod_morph_data *data = dev->data;
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if (data->pressed_binding != NULL) {
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LOG_ERR("Can't press the same mod-morph twice");
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return -ENOTSUP;
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}
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if (zmk_hid_get_explicit_mods() & cfg->mods) {
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zmk_hid_masked_modifiers_set(cfg->masked_mods);
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data->pressed_binding = (struct zmk_behavior_binding *)&cfg->morph_binding;
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} else {
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data->pressed_binding = (struct zmk_behavior_binding *)&cfg->normal_binding;
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}
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return behavior_keymap_binding_pressed(data->pressed_binding, event);
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}
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static int on_mod_morph_binding_released(struct zmk_behavior_binding *binding,
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struct zmk_behavior_binding_event event) {
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const struct device *dev = zmk_behavior_get_binding(binding->behavior_dev);
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struct behavior_mod_morph_data *data = dev->data;
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if (data->pressed_binding == NULL) {
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LOG_ERR("Mod-morph already released");
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return -ENOTSUP;
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}
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struct zmk_behavior_binding *pressed_binding = data->pressed_binding;
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data->pressed_binding = NULL;
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int err;
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err = behavior_keymap_binding_released(pressed_binding, event);
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zmk_hid_masked_modifiers_clear();
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return err;
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}
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static const struct behavior_driver_api behavior_mod_morph_driver_api = {
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.binding_pressed = on_mod_morph_binding_pressed,
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.binding_released = on_mod_morph_binding_released,
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};
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static int behavior_mod_morph_init(const struct device *dev) { return 0; }
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#define _TRANSFORM_ENTRY(idx, node) \
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{ \
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.behavior_dev = DEVICE_DT_NAME(DT_INST_PHANDLE_BY_IDX(node, bindings, idx)), \
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.param1 = COND_CODE_0(DT_INST_PHA_HAS_CELL_AT_IDX(node, bindings, idx, param1), (0), \
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(DT_INST_PHA_BY_IDX(node, bindings, idx, param1))), \
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.param2 = COND_CODE_0(DT_INST_PHA_HAS_CELL_AT_IDX(node, bindings, idx, param2), (0), \
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(DT_INST_PHA_BY_IDX(node, bindings, idx, param2))), \
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}
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#define KP_INST(n) \
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static struct behavior_mod_morph_config behavior_mod_morph_config_##n = { \
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.normal_binding = _TRANSFORM_ENTRY(0, n), \
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.morph_binding = _TRANSFORM_ENTRY(1, n), \
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.mods = DT_INST_PROP(n, mods), \
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.masked_mods = COND_CODE_0(DT_INST_NODE_HAS_PROP(n, keep_mods), (DT_INST_PROP(n, mods)), \
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(DT_INST_PROP(n, mods) & ~DT_INST_PROP(n, keep_mods))), \
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}; \
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static struct behavior_mod_morph_data behavior_mod_morph_data_##n = {}; \
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BEHAVIOR_DT_INST_DEFINE(n, behavior_mod_morph_init, NULL, &behavior_mod_morph_data_##n, \
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&behavior_mod_morph_config_##n, APPLICATION, \
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CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &behavior_mod_morph_driver_api);
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DT_INST_FOREACH_STATUS_OKAY(KP_INST)
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#endif
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