diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/action_util.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/common/action_util.c b/common/action_util.c index 99a3adaab6..5f44b3812c 100644 --- a/common/action_util.c +++ b/common/action_util.c @@ -30,6 +30,15 @@ static inline void del_key_bit(uint8_t code); static uint8_t real_mods = 0; static uint8_t weak_mods = 0; +#ifdef USB_6KRO_ENABLE +#define RO_ADD(a, b) ((a + b) % REPORT_KEYS) +#define RO_SUB(a, b) ((a - b + REPORT_KEYS) % 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 = {}; @@ -158,7 +167,18 @@ uint8_t get_first_key(void) 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 } @@ -166,6 +186,52 @@ uint8_t get_first_key(void) /* 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 < REPORT_KEYS; i++) { @@ -181,15 +247,43 @@ static inline void add_key_byte(uint8_t code) 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 < REPORT_KEYS; i++) { if (keyboard_report->keys[i] == code) { keyboard_report->keys[i] = 0; } } +#endif } #ifdef NKRO_ENABLE |