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author | MechMerlin <30334081+mechmerlin@users.noreply.github.com> | 2018-08-28 16:52:30 -0700 |
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committer | Drashna Jaelre <drashna@live.com> | 2018-08-28 16:52:30 -0700 |
commit | b1935c5e0dcd1adf32df652c65deffad35cd7405 (patch) | |
tree | e3f814bae67a65d33bccf1ce187bf4b4104edf1f /keyboards/duck/eagle_viper/v2/indicator_leds.c | |
parent | 3916b06168f39233f77a252fbf5f9cfdae3df4fe (diff) | |
download | firmware-b1935c5e0dcd1adf32df652c65deffad35cd7405.tar.gz firmware-b1935c5e0dcd1adf32df652c65deffad35cd7405.tar.bz2 firmware-b1935c5e0dcd1adf32df652c65deffad35cd7405.zip |
Putting my ducks in a row: Eagle/Viper V2 into Duck directory (#3766)
* mv eagle_viper into duck
* delete files
* remove eagle_viper .c and .h
Diffstat (limited to 'keyboards/duck/eagle_viper/v2/indicator_leds.c')
-rw-r--r-- | keyboards/duck/eagle_viper/v2/indicator_leds.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/keyboards/duck/eagle_viper/v2/indicator_leds.c b/keyboards/duck/eagle_viper/v2/indicator_leds.c new file mode 100644 index 000000000..03a93197d --- /dev/null +++ b/keyboards/duck/eagle_viper/v2/indicator_leds.c @@ -0,0 +1,89 @@ +/* +Copyright 2017 MechMerlin <mechmerlin@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 <avr/interrupt.h> +#include <avr/io.h> +#include <stdbool.h> +#include <util/delay.h> +#include "indicator_leds.h" + +#define RES 6000 + +#define LED_T1H 600 +#define LED_T1L 650 +#define LED_T0H 250 +#define LED_T0L 1000 + +#define NS_PER_SEC (1000000000L) +#define CYCLES_PER_SEC (F_CPU) +#define NS_PER_CYCLE (NS_PER_SEC / CYCLES_PER_SEC) +#define NS_TO_CYCLES(n) ((n) / NS_PER_CYCLE) + +void send_bit_d4(bool bitVal) { + if(bitVal) { + asm volatile ( + "sbi %[port], %[bit] \n\t" + ".rept %[onCycles] \n\t" + "nop \n\t" + ".endr \n\t" + "cbi %[port], %[bit] \n\t" + ".rept %[offCycles] \n\t" + "nop \n\t" + ".endr \n\t" + :: + [port] "I" (_SFR_IO_ADDR(PORTD)), + [bit] "I" (4), + [onCycles] "I" (NS_TO_CYCLES(LED_T1H) - 2), + [offCycles] "I" (NS_TO_CYCLES(LED_T1L) - 2)); + } else { + asm volatile ( + "sbi %[port], %[bit] \n\t" + ".rept %[onCycles] \n\t" + "nop \n\t" + ".endr \n\t" + "cbi %[port], %[bit] \n\t" + ".rept %[offCycles] \n\t" + "nop \n\t" + ".endr \n\t" + :: + [port] "I" (_SFR_IO_ADDR(PORTD)), + [bit] "I" (4), + [onCycles] "I" (NS_TO_CYCLES(LED_T0H) - 2), + [offCycles] "I" (NS_TO_CYCLES(LED_T0L) - 2)); + } +} + +void show(void) { + _delay_us((RES / 1000UL) + 1); +} + +void send_value(uint8_t byte) { + for(uint8_t b = 0; b < 8; b++) { + send_bit_d4(byte & 0b10000000); + byte <<= 1; + } +} + +// Send the LED indicators to the WS2811S chips +void indicator_leds_set(bool leds[8]) { + uint8_t led_cnt; + + cli(); + for(led_cnt = 0; led_cnt < 8; led_cnt++) + send_value(leds[led_cnt] ? 255 : 0); + sei(); + show(); +} |