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#include <sys/util.h>
#include <logging/log.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#include <zmk/matrix.h>
#include <zmk/sensors.h>
#include <zmk/keymap.h>
#include <dt-bindings/zmk/matrix-transform.h>
#include <drivers/behavior.h>
#include <zmk/behavior.h>
#include <zmk/event-manager.h>
#include <zmk/events/position-state-changed.h>
#include <zmk/events/sensor-event.h>
static u32_t zmk_keymap_layer_state = 0;
static u8_t zmk_keymap_layer_default = 0;
#define DT_DRV_COMPAT zmk_keymap
#define LAYER_CHILD_LEN(node) 1+
#define ZMK_KEYMAP_NODE DT_DRV_INST(0)
#define ZMK_KEYMAP_LAYERS_LEN (DT_INST_FOREACH_CHILD(0, LAYER_CHILD_LEN) 0)
#define LAYER_NODE(l) DT_PHANDLE_BY_IDX(ZMK_KEYMAP_NODE, layers, l)
#define _TRANSFORM_ENTRY(idx, layer) \
{ .behavior_dev = DT_LABEL(DT_PHANDLE_BY_IDX(layer, bindings, idx)), \
.param1 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, bindings, idx, param1), (0), (DT_PHA_BY_IDX(layer, bindings, idx, param1))), \
.param2 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, bindings, idx, param2), (0), (DT_PHA_BY_IDX(layer, bindings, idx, param2))), \
},
#define TRANSFORMED_LAYER(node) \
{ UTIL_LISTIFY(DT_PROP_LEN(node, bindings), _TRANSFORM_ENTRY, node) },
#if ZMK_KEYMAP_HAS_SENSORS
#define _TRANSFORM_SENSOR_ENTRY(idx, layer) \
{ .behavior_dev = DT_LABEL(DT_PHANDLE_BY_IDX(layer, sensor_bindings, idx)), \
.param1 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, sensor_bindings, idx, param1), (0), (DT_PHA_BY_IDX(layer, sensor_bindings, idx, param1))), \
.param2 = COND_CODE_0(DT_PHA_HAS_CELL_AT_IDX(layer, sensor_bindings, idx, param2), (0), (DT_PHA_BY_IDX(layer, sensor_bindings, idx, param2))), \
},
#define SENSOR_LAYER(node) \
COND_CODE_1(DT_NODE_HAS_PROP(node, sensor_bindings), \
({ UTIL_LISTIFY(DT_PROP_LEN(node, sensor_bindings), _TRANSFORM_SENSOR_ENTRY, node) }), \
({})),
#endif /* ZMK_KEYMAP_HAS_SENSORS */
// State
// When a behavior handles a key position "down" event, we record that layer
// here so that even if that layer is deactivated before the "up", event, we
// still send the release event to the behavior in that layer also.
static u8_t zmk_keymap_active_behavior_layer[ZMK_KEYMAP_LEN];
static struct zmk_behavior_binding zmk_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_KEYMAP_LEN] = {
DT_INST_FOREACH_CHILD(0, TRANSFORMED_LAYER)
};
#if ZMK_KEYMAP_HAS_SENSORS
static struct zmk_behavior_binding zmk_sensor_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_KEYMAP_SENSORS_LEN] = {
DT_INST_FOREACH_CHILD(0, SENSOR_LAYER)
};
#endif /* ZMK_KEYMAP_HAS_SENSORS */
#define SET_LAYER_STATE(layer, state) \
if (layer >= 32) \
{ \
return -EINVAL; \
} \
WRITE_BIT(zmk_keymap_layer_state, layer, state); \
return 0;
bool zmk_keymap_layer_active(u8_t layer)
{
return (zmk_keymap_layer_state & (BIT(layer))) == (BIT(layer));
};
int zmk_keymap_layer_activate(u8_t layer)
{
SET_LAYER_STATE(layer, true);
};
int zmk_keymap_layer_deactivate(u8_t layer)
{
SET_LAYER_STATE(layer, false);
};
int zmk_keymap_layer_toggle(u8_t layer)
{
if (zmk_keymap_layer_active(layer))
{
return zmk_keymap_layer_deactivate(layer);
}
return zmk_keymap_layer_activate(layer);
};
bool is_active_position(u32_t position, u8_t layer)
{
return (zmk_keymap_layer_state & BIT(layer)) == BIT(layer)
|| layer == zmk_keymap_layer_default
|| zmk_keymap_active_behavior_layer[position] == layer;
}
int zmk_keymap_position_state_changed(u32_t position, bool pressed)
{
for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= zmk_keymap_layer_default; layer--)
{
if (is_active_position(position, layer))
{
struct zmk_behavior_binding *binding = &zmk_keymap[layer][position];
struct device *behavior;
int ret;
LOG_DBG("layer: %d position: %d, binding name: %s", layer, position, log_strdup(binding->behavior_dev));
behavior = device_get_binding(binding->behavior_dev);
if (!behavior) {
LOG_DBG("No behavior assigned to %d on layer %d", position, layer);
continue;
}
if (pressed) {
ret = behavior_keymap_binding_pressed(behavior, position, binding->param1, binding->param2);
} else {
ret = behavior_keymap_binding_released(behavior, position, binding->param1, binding->param2);
}
if (ret > 0) {
LOG_DBG("behavior processing to continue to next layer");
continue;
} else if (ret < 0) {
LOG_DBG("Behavior returned error: %d", ret);
zmk_keymap_active_behavior_layer[position] = 0;
return ret;
} else {
zmk_keymap_active_behavior_layer[position] = pressed ? layer : 0;
return ret;
}
}
}
return -ENOTSUP;
}
#if ZMK_KEYMAP_HAS_SENSORS
int zmk_keymap_sensor_triggered(u8_t sensor_number, struct device *sensor)
{
for (int layer = ZMK_KEYMAP_LAYERS_LEN - 1; layer >= zmk_keymap_layer_default; layer--)
{
if (((zmk_keymap_layer_state & BIT(layer)) == BIT(layer) || layer == zmk_keymap_layer_default) && zmk_sensor_keymap[layer] != NULL)
{
struct zmk_behavior_binding *binding = &zmk_sensor_keymap[layer][sensor_number];
struct device *behavior;
int ret;
LOG_DBG("layer: %d sensor_number: %d, binding name: %s", layer, sensor_number, log_strdup(binding->behavior_dev));
behavior = device_get_binding(binding->behavior_dev);
if (!behavior) {
LOG_DBG("No behavior assigned to %d on layer %d", sensor_number, layer);
continue;
}
ret = behavior_sensor_keymap_binding_triggered(behavior, sensor, binding->param1, binding->param2);
if (ret > 0) {
LOG_DBG("behavior processing to continue to next layer");
continue;
} else if (ret < 0) {
LOG_DBG("Behavior returned error: %d", ret);
return ret;
} else {
return ret;
}
}
}
return -ENOTSUP;
}
#endif /* ZMK_KEYMAP_HAS_SENSORS */
int keymap_listener(const struct zmk_event_header *eh)
{
if (is_position_state_changed(eh)) {
const struct position_state_changed *ev = cast_position_state_changed(eh);
return zmk_keymap_position_state_changed(ev->position, ev->state);
#if ZMK_KEYMAP_HAS_SENSORS
} else if (is_sensor_event(eh)) {
const struct sensor_event *ev = cast_sensor_event(eh);
return zmk_keymap_sensor_triggered(ev->sensor_number, ev->sensor);
#endif /* ZMK_KEYMAP_HAS_SENSORS */
}
return -ENOTSUP;
}
ZMK_LISTENER(keymap, keymap_listener);
ZMK_SUBSCRIPTION(keymap, position_state_changed);
#if ZMK_KEYMAP_HAS_SENSORS
ZMK_SUBSCRIPTION(keymap, sensor_event);
#endif /* ZMK_KEYMAP_HAS_SENSORS */
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