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-rw-r--r--tmk_core/common/action_util.c307
1 files changed, 307 insertions, 0 deletions
diff --git a/tmk_core/common/action_util.c b/tmk_core/common/action_util.c
new file mode 100644
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+++ b/tmk_core/common/action_util.c
@@ -0,0 +1,307 @@
+/*
+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 "timer.h"
+
+static inline void add_key_byte(uint8_t code);
+static inline void del_key_byte(uint8_t code);
+#ifdef NKRO_ENABLE
+static inline void add_key_bit(uint8_t code);
+static inline void del_key_bit(uint8_t code);
+#endif
+
+static uint8_t real_mods = 0;
+static uint8_t weak_mods = 0;
+
+#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){};
+
+#ifndef NO_ACTION_ONESHOT
+static int8_t oneshot_mods = 0;
+#if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+static int16_t oneshot_time = 0;
+#endif
+#endif
+
+
+void send_keyboard_report(void) {
+ keyboard_report->mods = real_mods;
+ keyboard_report->mods |= weak_mods;
+#ifndef NO_ACTION_ONESHOT
+ if (oneshot_mods) {
+#if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ if (TIMER_DIFF_16(timer_read(), oneshot_time) >= ONESHOT_TIMEOUT) {
+ dprintf("Oneshot: timeout\n");
+ clear_oneshot_mods();
+ }
+#endif
+ keyboard_report->mods |= oneshot_mods;
+ if (has_anykey()) {
+ clear_oneshot_mods();
+ }
+ }
+#endif
+ host_keyboard_send(keyboard_report);
+}
+
+/* key */
+void add_key(uint8_t key)
+{
+#ifdef NKRO_ENABLE
+ if (keyboard_protocol && keyboard_nkro) {
+ add_key_bit(key);
+ return;
+ }
+#endif
+ add_key_byte(key);
+}
+
+void del_key(uint8_t key)
+{
+#ifdef NKRO_ENABLE
+ if (keyboard_protocol && keyboard_nkro) {
+ del_key_bit(key);
+ return;
+ }
+#endif
+ del_key_byte(key);
+}
+
+void clear_keys(void)
+{
+ // not clear mods
+ for (int8_t i = 1; i < KEYBOARD_REPORT_SIZE; i++) {
+ keyboard_report->raw[i] = 0;
+ }
+}
+
+
+/* modifier */
+uint8_t get_mods(void) { return real_mods; }
+void add_mods(uint8_t mods) { real_mods |= mods; }
+void del_mods(uint8_t mods) { real_mods &= ~mods; }
+void set_mods(uint8_t mods) { real_mods = mods; }
+void clear_mods(void) { real_mods = 0; }
+
+/* weak modifier */
+uint8_t get_weak_mods(void) { return weak_mods; }
+void add_weak_mods(uint8_t mods) { weak_mods |= mods; }
+void del_weak_mods(uint8_t mods) { weak_mods &= ~mods; }
+void set_weak_mods(uint8_t mods) { weak_mods = mods; }
+void clear_weak_mods(void) { weak_mods = 0; }
+
+/* Oneshot modifier */
+#ifndef NO_ACTION_ONESHOT
+void set_oneshot_mods(uint8_t mods)
+{
+ oneshot_mods = mods;
+#if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = timer_read();
+#endif
+}
+void clear_oneshot_mods(void)
+{
+ oneshot_mods = 0;
+#if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
+ oneshot_time = 0;
+#endif
+}
+#endif
+
+
+
+
+/*
+ * inspect keyboard state
+ */
+uint8_t has_anykey(void)
+{
+ uint8_t cnt = 0;
+ for (uint8_t i = 1; i < KEYBOARD_REPORT_SIZE; i++) {
+ if (keyboard_report->raw[i])
+ cnt++;
+ }
+ return cnt;
+}
+
+uint8_t has_anymod(void)
+{
+ return bitpop(real_mods);
+}
+
+uint8_t get_first_key(void)
+{
+#ifdef NKRO_ENABLE
+ if (keyboard_protocol && keyboard_nkro) {
+ uint8_t i = 0;
+ for (; i < KEYBOARD_REPORT_BITS && !keyboard_report->nkro.bits[i]; i++)
+ ;
+ return i<<3 | biton(keyboard_report->nkro.bits[i]);
+ }
+#endif
+#ifdef USB_6KRO_ENABLE
+ uint8_t i = cb_head;
+ do {
+ if (keyboard_report->keys[i] != 0) {
+ break;
+ }
+ i = RO_INC(i);
+ } while (i != cb_tail);
+ return keyboard_report->keys[i];
+#else
+ return keyboard_report->keys[0];
+#endif
+}
+
+
+
+/* local functions */
+static inline void add_key_byte(uint8_t code)
+{
+#ifdef USB_6KRO_ENABLE
+ int8_t i = cb_head;
+ int8_t empty = -1;
+ if (cb_count) {
+ do {
+ if (keyboard_report->keys[i] == code) {
+ return;
+ }
+ if (empty == -1 && keyboard_report->keys[i] == 0) {
+ empty = i;
+ }
+ i = RO_INC(i);
+ } while (i != cb_tail);
+ if (i == cb_tail) {
+ if (cb_tail == cb_head) {
+ // buffer is full
+ if (empty == -1) {
+ // pop head when has no empty space
+ cb_head = RO_INC(cb_head);
+ cb_count--;
+ }
+ else {
+ // left shift when has empty space
+ uint8_t offset = 1;
+ i = RO_INC(empty);
+ do {
+ if (keyboard_report->keys[i] != 0) {
+ keyboard_report->keys[empty] = keyboard_report->keys[i];
+ keyboard_report->keys[i] = 0;
+ empty = RO_INC(empty);
+ }
+ else {
+ offset++;
+ }
+ i = RO_INC(i);
+ } while (i != cb_tail);
+ cb_tail = RO_SUB(cb_tail, offset);
+ }
+ }
+ }
+ }
+ // add to tail
+ keyboard_report->keys[cb_tail] = code;
+ cb_tail = RO_INC(cb_tail);
+ cb_count++;
+#else
+ int8_t i = 0;
+ int8_t empty = -1;
+ for (; i < KEYBOARD_REPORT_KEYS; i++) {
+ if (keyboard_report->keys[i] == code) {
+ break;
+ }
+ if (empty == -1 && keyboard_report->keys[i] == 0) {
+ empty = i;
+ }
+ }
+ if (i == KEYBOARD_REPORT_KEYS) {
+ if (empty != -1) {
+ keyboard_report->keys[empty] = code;
+ }
+ }
+#endif
+}
+
+static inline void del_key_byte(uint8_t code)
+{
+#ifdef USB_6KRO_ENABLE
+ uint8_t i = cb_head;
+ if (cb_count) {
+ do {
+ if (keyboard_report->keys[i] == code) {
+ keyboard_report->keys[i] = 0;
+ cb_count--;
+ if (cb_count == 0) {
+ // reset head and tail
+ cb_tail = cb_head = 0;
+ }
+ if (i == RO_DEC(cb_tail)) {
+ // left shift when next to tail
+ do {
+ cb_tail = RO_DEC(cb_tail);
+ if (keyboard_report->keys[RO_DEC(cb_tail)] != 0) {
+ break;
+ }
+ } while (cb_tail != cb_head);
+ }
+ break;
+ }
+ i = RO_INC(i);
+ } while (i != cb_tail);
+ }
+#else
+ for (uint8_t i = 0; i < KEYBOARD_REPORT_KEYS; i++) {
+ if (keyboard_report->keys[i] == code) {
+ keyboard_report->keys[i] = 0;
+ }
+ }
+#endif
+}
+
+#ifdef NKRO_ENABLE
+static inline void add_key_bit(uint8_t code)
+{
+ if ((code>>3) < KEYBOARD_REPORT_BITS) {
+ keyboard_report->nkro.bits[code>>3] |= 1<<(code&7);
+ } else {
+ dprintf("add_key_bit: can't add: %02X\n", code);
+ }
+}
+
+static inline void del_key_bit(uint8_t code)
+{
+ if ((code>>3) < KEYBOARD_REPORT_BITS) {
+ keyboard_report->nkro.bits[code>>3] &= ~(1<<(code&7));
+ } else {
+ dprintf("del_key_bit: can't del: %02X\n", code);
+ }
+}
+#endif
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