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+/*
+Copyright 2013 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "host.h"
+#include "report.h"
+#include "debug.h"
+#include "action_util.h"
+#include "action_layer.h"
+#include "timer.h"
+#include "keycode_config.h"
+
+extern keymap_config_t keymap_config;
+
+static uint8_t real_mods = 0;
+static uint8_t weak_mods = 0;
+static uint8_t macro_mods = 0;
+#ifdef KEY_OVERRIDE_ENABLE
+static uint8_t weak_override_mods = 0;
+static uint8_t suppressed_mods = 0;
+#endif
+
+#ifdef USB_6KRO_ENABLE
+# define RO_ADD(a, b) ((a + b) % KEYBOARD_REPORT_KEYS)
+# define RO_SUB(a, b) ((a - b + KEYBOARD_REPORT_KEYS) % KEYBOARD_REPORT_KEYS)
+# define RO_INC(a) RO_ADD(a, 1)
+# define RO_DEC(a) RO_SUB(a, 1)
+static int8_t cb_head = 0;
+static int8_t cb_tail = 0;
+static int8_t cb_count = 0;
+#endif
+
+// TODO: pointer variable is not needed
+// report_keyboard_t keyboard_report = {};
+report_keyboard_t *keyboard_report = &(report_keyboard_t){};
+
+extern inline void add_key(uint8_t key);
+extern inline void del_key(uint8_t key);
+extern inline void clear_keys(void);
+
+#ifndef NO_ACTION_ONESHOT
+static uint8_t oneshot_mods = 0;
+static uint8_t oneshot_locked_mods = 0;
+uint8_t get_oneshot_locked_mods(void) { return oneshot_locked_mods; }
+void set_oneshot_locked_mods(uint8_t mods) {
+ if (mods != oneshot_locked_mods) {
+ oneshot_locked_mods = mods;
+ oneshot_locked_mods_changed_kb(oneshot_locked_mods);
+ }
+}
+void clear_oneshot_locked_mods(void) {
+ if (oneshot_locked_mods) {
+ oneshot_locked_mods = 0;
+ oneshot_locked_mods_changed_kb(oneshot_locked_mods);
+ }
+}
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+static uint16_t oneshot_time = 0;
+bool has_oneshot_mods_timed_out(void) { return TIMER_DIFF_16(timer_read(), oneshot_time) >= ONESHOT_TIMEOUT; }
+# else
+bool has_oneshot_mods_timed_out(void) { return false; }
+# endif
+#endif
+
+/* oneshot layer */
+#ifndef NO_ACTION_ONESHOT
+/** \brief oneshot_layer_data bits
+ * LLLL LSSS
+ * where:
+ * L => are layer bits
+ * S => oneshot state bits
+ */
+static int8_t oneshot_layer_data = 0;
+
+inline uint8_t get_oneshot_layer(void) { return oneshot_layer_data >> 3; }
+inline uint8_t get_oneshot_layer_state(void) { return oneshot_layer_data & 0b111; }
+
+# ifdef SWAP_HANDS_ENABLE
+enum {
+ SHO_OFF,
+ SHO_ACTIVE, // Swap hands button was pressed, and we didn't send any swapped keys yet
+ SHO_PRESSED, // Swap hands button is currently pressed
+ SHO_USED, // Swap hands button is still pressed, and we already sent swapped keys
+} swap_hands_oneshot = SHO_OFF;
+# endif
+
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+static uint16_t oneshot_layer_time = 0;
+inline bool has_oneshot_layer_timed_out() { return TIMER_DIFF_16(timer_read(), oneshot_layer_time) >= ONESHOT_TIMEOUT && !(get_oneshot_layer_state() & ONESHOT_TOGGLED); }
+# ifdef SWAP_HANDS_ENABLE
+static uint16_t oneshot_swaphands_time = 0;
+inline bool has_oneshot_swaphands_timed_out() { return TIMER_DIFF_16(timer_read(), oneshot_swaphands_time) >= ONESHOT_TIMEOUT && (swap_hands_oneshot == SHO_ACTIVE); }
+# endif
+# endif
+
+# ifdef SWAP_HANDS_ENABLE
+
+void set_oneshot_swaphands(void) {
+ swap_hands_oneshot = SHO_PRESSED;
+ swap_hands = true;
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_swaphands_time = timer_read();
+ if (oneshot_layer_time != 0) {
+ oneshot_layer_time = oneshot_swaphands_time;
+ }
+# endif
+}
+
+void release_oneshot_swaphands(void) {
+ if (swap_hands_oneshot == SHO_PRESSED) {
+ swap_hands_oneshot = SHO_ACTIVE;
+ }
+ if (swap_hands_oneshot == SHO_USED) {
+ clear_oneshot_swaphands();
+ }
+}
+
+void use_oneshot_swaphands(void) {
+ if (swap_hands_oneshot == SHO_PRESSED) {
+ swap_hands_oneshot = SHO_USED;
+ }
+ if (swap_hands_oneshot == SHO_ACTIVE) {
+ clear_oneshot_swaphands();
+ }
+}
+
+void clear_oneshot_swaphands(void) {
+ swap_hands_oneshot = SHO_OFF;
+ swap_hands = false;
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_swaphands_time = 0;
+# endif
+}
+
+# endif
+
+/** \brief Set oneshot layer
+ *
+ * FIXME: needs doc
+ */
+void set_oneshot_layer(uint8_t layer, uint8_t state) {
+ if (!keymap_config.oneshot_disable) {
+ oneshot_layer_data = layer << 3 | state;
+ layer_on(layer);
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_layer_time = timer_read();
+# endif
+ oneshot_layer_changed_kb(get_oneshot_layer());
+ } else {
+ layer_on(layer);
+ }
+}
+/** \brief Reset oneshot layer
+ *
+ * FIXME: needs doc
+ */
+void reset_oneshot_layer(void) {
+ oneshot_layer_data = 0;
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_layer_time = 0;
+# endif
+ oneshot_layer_changed_kb(get_oneshot_layer());
+}
+/** \brief Clear oneshot layer
+ *
+ * FIXME: needs doc
+ */
+void clear_oneshot_layer_state(oneshot_fullfillment_t state) {
+ uint8_t start_state = oneshot_layer_data;
+ oneshot_layer_data &= ~state;
+ if ((!get_oneshot_layer_state() && start_state != oneshot_layer_data) || keymap_config.oneshot_disable) {
+ layer_off(get_oneshot_layer());
+ reset_oneshot_layer();
+ }
+}
+/** \brief Is oneshot layer active
+ *
+ * FIXME: needs doc
+ */
+bool is_oneshot_layer_active(void) { return get_oneshot_layer_state(); }
+
+/** \brief set oneshot
+ *
+ * FIXME: needs doc
+ */
+void oneshot_set(bool active) {
+ if (keymap_config.oneshot_disable != active) {
+ keymap_config.oneshot_disable = active;
+ eeconfig_update_keymap(keymap_config.raw);
+ dprintf("Oneshot: active: %d\n", active);
+ }
+}
+
+/** \brief toggle oneshot
+ *
+ * FIXME: needs doc
+ */
+void oneshot_toggle(void) { oneshot_set(!keymap_config.oneshot_disable); }
+
+/** \brief enable oneshot
+ *
+ * FIXME: needs doc
+ */
+void oneshot_enable(void) { oneshot_set(true); }
+
+/** \brief disable oneshot
+ *
+ * FIXME: needs doc
+ */
+void oneshot_disable(void) { oneshot_set(false); }
+
+bool is_oneshot_enabled(void) { return keymap_config.oneshot_disable; }
+
+#endif
+
+/** \brief Send keyboard report
+ *
+ * FIXME: needs doc
+ */
+void send_keyboard_report(void) {
+ keyboard_report->mods = real_mods;
+ keyboard_report->mods |= weak_mods;
+ keyboard_report->mods |= macro_mods;
+
+#ifndef NO_ACTION_ONESHOT
+ if (oneshot_mods) {
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ if (has_oneshot_mods_timed_out()) {
+ dprintf("Oneshot: timeout\n");
+ clear_oneshot_mods();
+ }
+# endif
+ keyboard_report->mods |= oneshot_mods;
+ if (has_anykey(keyboard_report)) {
+ clear_oneshot_mods();
+ }
+ }
+
+#endif
+
+#ifdef KEY_OVERRIDE_ENABLE
+ // These need to be last to be able to properly control key overrides
+ keyboard_report->mods &= ~suppressed_mods;
+ keyboard_report->mods |= weak_override_mods;
+#endif
+
+ host_keyboard_send(keyboard_report);
+}
+
+/** \brief Get mods
+ *
+ * FIXME: needs doc
+ */
+uint8_t get_mods(void) { return real_mods; }
+/** \brief add mods
+ *
+ * FIXME: needs doc
+ */
+void add_mods(uint8_t mods) { real_mods |= mods; }
+/** \brief del mods
+ *
+ * FIXME: needs doc
+ */
+void del_mods(uint8_t mods) { real_mods &= ~mods; }
+/** \brief set mods
+ *
+ * FIXME: needs doc
+ */
+void set_mods(uint8_t mods) { real_mods = mods; }
+/** \brief clear mods
+ *
+ * FIXME: needs doc
+ */
+void clear_mods(void) { real_mods = 0; }
+
+/** \brief get weak mods
+ *
+ * FIXME: needs doc
+ */
+uint8_t get_weak_mods(void) { return weak_mods; }
+/** \brief add weak mods
+ *
+ * FIXME: needs doc
+ */
+void add_weak_mods(uint8_t mods) { weak_mods |= mods; }
+/** \brief del weak mods
+ *
+ * FIXME: needs doc
+ */
+void del_weak_mods(uint8_t mods) { weak_mods &= ~mods; }
+/** \brief set weak mods
+ *
+ * FIXME: needs doc
+ */
+void set_weak_mods(uint8_t mods) { weak_mods = mods; }
+/** \brief clear weak mods
+ *
+ * FIXME: needs doc
+ */
+void clear_weak_mods(void) { weak_mods = 0; }
+
+#ifdef KEY_OVERRIDE_ENABLE
+/** \brief set weak mods used by key overrides. DO not call this manually
+ */
+void set_weak_override_mods(uint8_t mods) { weak_override_mods = mods; }
+/** \brief clear weak mods used by key overrides. DO not call this manually
+ */
+void clear_weak_override_mods(void) { weak_override_mods = 0; }
+
+/** \brief set suppressed mods used by key overrides. DO not call this manually
+ */
+void set_suppressed_override_mods(uint8_t mods) { suppressed_mods = mods; }
+/** \brief clear suppressed mods used by key overrides. DO not call this manually
+ */
+void clear_suppressed_override_mods(void) { suppressed_mods = 0; }
+#endif
+
+/* macro modifier */
+/** \brief get macro mods
+ *
+ * FIXME: needs doc
+ */
+uint8_t get_macro_mods(void) { return macro_mods; }
+/** \brief add macro mods
+ *
+ * FIXME: needs doc
+ */
+void add_macro_mods(uint8_t mods) { macro_mods |= mods; }
+/** \brief del macro mods
+ *
+ * FIXME: needs doc
+ */
+void del_macro_mods(uint8_t mods) { macro_mods &= ~mods; }
+/** \brief set macro mods
+ *
+ * FIXME: needs doc
+ */
+void set_macro_mods(uint8_t mods) { macro_mods = mods; }
+/** \brief clear macro mods
+ *
+ * FIXME: needs doc
+ */
+void clear_macro_mods(void) { macro_mods = 0; }
+
+#ifndef NO_ACTION_ONESHOT
+/** \brief get oneshot mods
+ *
+ * FIXME: needs doc
+ */
+uint8_t get_oneshot_mods(void) { return oneshot_mods; }
+
+void add_oneshot_mods(uint8_t mods) {
+ if ((oneshot_mods & mods) != mods) {
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = timer_read();
+# endif
+ oneshot_mods |= mods;
+ oneshot_mods_changed_kb(mods);
+ }
+}
+
+void del_oneshot_mods(uint8_t mods) {
+ if (oneshot_mods & mods) {
+ oneshot_mods &= ~mods;
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = oneshot_mods ? timer_read() : 0;
+# endif
+ oneshot_mods_changed_kb(oneshot_mods);
+ }
+}
+
+/** \brief set oneshot mods
+ *
+ * FIXME: needs doc
+ */
+void set_oneshot_mods(uint8_t mods) {
+ if (!keymap_config.oneshot_disable) {
+ if (oneshot_mods != mods) {
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = timer_read();
+# endif
+ oneshot_mods = mods;
+ oneshot_mods_changed_kb(mods);
+ }
+ }
+}
+
+/** \brief clear oneshot mods
+ *
+ * FIXME: needs doc
+ */
+void clear_oneshot_mods(void) {
+ if (oneshot_mods) {
+ oneshot_mods = 0;
+# if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = 0;
+# endif
+ oneshot_mods_changed_kb(oneshot_mods);
+ }
+}
+#endif
+
+/** \brief Called when the one shot modifiers have been changed.
+ *
+ * \param mods Contains the active modifiers active after the change.
+ */
+__attribute__((weak)) void oneshot_locked_mods_changed_user(uint8_t mods) {}
+
+/** \brief Called when the locked one shot modifiers have been changed.
+ *
+ * \param mods Contains the active modifiers active after the change.
+ */
+__attribute__((weak)) void oneshot_locked_mods_changed_kb(uint8_t mods) { oneshot_locked_mods_changed_user(mods); }
+
+/** \brief Called when the one shot modifiers have been changed.
+ *
+ * \param mods Contains the active modifiers active after the change.
+ */
+__attribute__((weak)) void oneshot_mods_changed_user(uint8_t mods) {}
+
+/** \brief Called when the one shot modifiers have been changed.
+ *
+ * \param mods Contains the active modifiers active after the change.
+ */
+__attribute__((weak)) void oneshot_mods_changed_kb(uint8_t mods) { oneshot_mods_changed_user(mods); }
+
+/** \brief Called when the one shot layers have been changed.
+ *
+ * \param layer Contains the layer that is toggled on, or zero when toggled off.
+ */
+__attribute__((weak)) void oneshot_layer_changed_user(uint8_t layer) {}
+
+/** \brief Called when the one shot layers have been changed.
+ *
+ * \param layer Contains the layer that is toggled on, or zero when toggled off.
+ */
+__attribute__((weak)) void oneshot_layer_changed_kb(uint8_t layer) { oneshot_layer_changed_user(layer); }
+
+/** \brief inspect keyboard state
+ *
+ * FIXME: needs doc
+ */
+uint8_t has_anymod(void) { return bitpop(real_mods); }