mirror of
https://github.com/qmk/qmk_firmware
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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#include "velocikey.h"
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#include "timer.h"
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#include "eeconfig.h"
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#include "eeprom.h"
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#ifndef MIN
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# define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef MAX
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# define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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#define TYPING_SPEED_MAX_VALUE 200
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uint8_t typing_speed = 0;
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bool velocikey_enabled(void) { return eeprom_read_byte(EECONFIG_VELOCIKEY) == 1; }
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void velocikey_toggle(void) {
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if (velocikey_enabled())
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eeprom_update_byte(EECONFIG_VELOCIKEY, 0);
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else
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eeprom_update_byte(EECONFIG_VELOCIKEY, 1);
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}
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void velocikey_accelerate(void) {
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if (typing_speed < TYPING_SPEED_MAX_VALUE) typing_speed += (TYPING_SPEED_MAX_VALUE / 100);
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}
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void velocikey_decelerate(void) {
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static uint16_t decay_timer = 0;
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if (timer_elapsed(decay_timer) > 500 || decay_timer == 0) {
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if (typing_speed > 0) typing_speed -= 1;
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// Decay a little faster at half of max speed
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if (typing_speed > TYPING_SPEED_MAX_VALUE / 2) typing_speed -= 1;
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// Decay even faster at 3/4 of max speed
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if (typing_speed > TYPING_SPEED_MAX_VALUE / 4 * 3) typing_speed -= 2;
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decay_timer = timer_read();
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}
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}
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uint8_t velocikey_match_speed(uint8_t minValue, uint8_t maxValue) { return MAX(minValue, maxValue - (maxValue - minValue) * ((float)typing_speed / TYPING_SPEED_MAX_VALUE)); }
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