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/*
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#define DT_DRV_COMPAT zmk_behavior_mod_morph
#include <device.h>
#include <drivers/behavior.h>
#include <logging/log.h>
#include <zmk/behavior.h>
#include <zmk/matrix.h>
#include <zmk/endpoints.h>
#include <zmk/event_manager.h>
#include <zmk/events/position_state_changed.h>
#include <zmk/events/keycode_state_changed.h>
#include <zmk/events/modifiers_state_changed.h>
#include <zmk/hid.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
struct behavior_mod_morph_config {
struct zmk_behavior_binding normal_binding;
struct zmk_behavior_binding morph_binding;
zmk_mod_flags_t mods;
};
struct behavior_mod_morph_data {
struct zmk_behavior_binding *pressed_binding;
};
static int on_mod_morph_binding_pressed(struct zmk_behavior_binding *binding,
struct zmk_behavior_binding_event event) {
const struct device *dev = device_get_binding(binding->behavior_dev);
const struct behavior_mod_morph_config *cfg = dev->config;
struct behavior_mod_morph_data *data = dev->data;
if (data->pressed_binding != NULL) {
LOG_ERR("Can't press the same mod-morph twice");
return -ENOTSUP;
}
if (zmk_hid_get_explicit_mods() & cfg->mods) {
data->pressed_binding = (struct zmk_behavior_binding *)&cfg->morph_binding;
} else {
data->pressed_binding = (struct zmk_behavior_binding *)&cfg->normal_binding;
}
return behavior_keymap_binding_pressed(data->pressed_binding, event);
}
static int on_mod_morph_binding_released(struct zmk_behavior_binding *binding,
struct zmk_behavior_binding_event event) {
const struct device *dev = device_get_binding(binding->behavior_dev);
struct behavior_mod_morph_data *data = dev->data;
if (data->pressed_binding == NULL) {
LOG_ERR("Mod-morph already released");
return -ENOTSUP;
}
struct zmk_behavior_binding *pressed_binding = data->pressed_binding;
data->pressed_binding = NULL;
return behavior_keymap_binding_released(pressed_binding, event);
}
static const struct behavior_driver_api behavior_mod_morph_driver_api = {
.binding_pressed = on_mod_morph_binding_pressed,
.binding_released = on_mod_morph_binding_released,
};
static int behavior_mod_morph_init(const struct device *dev) { return 0; }
#define _TRANSFORM_ENTRY(idx, node) \
{ \
.behavior_dev = DT_LABEL(DT_INST_PHANDLE_BY_IDX(node, bindings, idx)), \
.param1 = COND_CODE_0(DT_INST_PHA_HAS_CELL_AT_IDX(node, bindings, idx, param1), (0), \
(DT_INST_PHA_BY_IDX(node, bindings, idx, param1))), \
.param2 = COND_CODE_0(DT_INST_PHA_HAS_CELL_AT_IDX(node, bindings, idx, param2), (0), \
(DT_INST_PHA_BY_IDX(node, bindings, idx, param2))), \
}
#define KP_INST(n) \
static struct behavior_mod_morph_config behavior_mod_morph_config_##n = { \
.normal_binding = _TRANSFORM_ENTRY(0, n), \
.morph_binding = _TRANSFORM_ENTRY(1, n), \
.mods = DT_INST_PROP(n, mods), \
}; \
static struct behavior_mod_morph_data behavior_mod_morph_data_##n = {}; \
DEVICE_AND_API_INIT(behavior_mod_morph_##n, DT_INST_LABEL(n), behavior_mod_morph_init, \
&behavior_mod_morph_data_##n, &behavior_mod_morph_config_##n, APPLICATION, \
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &behavior_mod_morph_driver_api);
DT_INST_FOREACH_STATUS_OKAY(KP_INST)
#endif
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