aboutsummaryrefslogtreecommitdiffstats
path: root/quantum/light_ws2812.c
diff options
context:
space:
mode:
Diffstat (limited to 'quantum/light_ws2812.c')
-rwxr-xr-xquantum/light_ws2812.c342
1 files changed, 0 insertions, 342 deletions
diff --git a/quantum/light_ws2812.c b/quantum/light_ws2812.c
deleted file mode 100755
index 2506e3d8e..000000000
--- a/quantum/light_ws2812.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*
-* light weight WS2812 lib V2.0b
-*
-* Controls WS2811/WS2812/WS2812B RGB-LEDs
-* Author: Tim (cpldcpu@gmail.com)
-*
-* Jan 18th, 2014 v2.0b Initial Version
-* Nov 29th, 2015 v2.3 Added SK6812RGBW support
-*
-* 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 "light_ws2812.h"
-#include <avr/interrupt.h>
-#include <avr/io.h>
-#include <util/delay.h>
-#include "debug.h"
-
-#ifdef RGBW_BB_TWI
-
-// Port for the I2C
-#define I2C_DDR DDRD
-#define I2C_PIN PIND
-#define I2C_PORT PORTD
-
-// Pins to be used in the bit banging
-#define I2C_CLK 0
-#define I2C_DAT 1
-
-#define I2C_DATA_HI()\
-I2C_DDR &= ~ (1 << I2C_DAT);\
-I2C_PORT |= (1 << I2C_DAT);
-#define I2C_DATA_LO()\
-I2C_DDR |= (1 << I2C_DAT);\
-I2C_PORT &= ~ (1 << I2C_DAT);
-
-#define I2C_CLOCK_HI()\
-I2C_DDR &= ~ (1 << I2C_CLK);\
-I2C_PORT |= (1 << I2C_CLK);
-#define I2C_CLOCK_LO()\
-I2C_DDR |= (1 << I2C_CLK);\
-I2C_PORT &= ~ (1 << I2C_CLK);
-
-#define I2C_DELAY 1
-
-void I2C_WriteBit(unsigned char c)
-{
- if (c > 0)
- {
- I2C_DATA_HI();
- }
- else
- {
- I2C_DATA_LO();
- }
-
- I2C_CLOCK_HI();
- _delay_us(I2C_DELAY);
-
- I2C_CLOCK_LO();
- _delay_us(I2C_DELAY);
-
- if (c > 0)
- {
- I2C_DATA_LO();
- }
-
- _delay_us(I2C_DELAY);
-}
-
-// Inits bitbanging port, must be called before using the functions below
-//
-void I2C_Init(void)
-{
- I2C_PORT &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
-
- I2C_CLOCK_HI();
- I2C_DATA_HI();
-
- _delay_us(I2C_DELAY);
-}
-
-// Send a START Condition
-//
-void I2C_Start(void)
-{
- // set both to high at the same time
- I2C_DDR &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
- _delay_us(I2C_DELAY);
-
- I2C_DATA_LO();
- _delay_us(I2C_DELAY);
-
- I2C_CLOCK_LO();
- _delay_us(I2C_DELAY);
-}
-
-// Send a STOP Condition
-//
-void I2C_Stop(void)
-{
- I2C_CLOCK_HI();
- _delay_us(I2C_DELAY);
-
- I2C_DATA_HI();
- _delay_us(I2C_DELAY);
-}
-
-// write a byte to the I2C slave device
-//
-unsigned char I2C_Write(unsigned char c)
-{
- for (char i = 0; i < 8; i++)
- {
- I2C_WriteBit(c & 128);
-
- c <<= 1;
- }
-
-
- I2C_WriteBit(0);
- _delay_us(I2C_DELAY);
- _delay_us(I2C_DELAY);
-
- // _delay_us(I2C_DELAY);
- //return I2C_ReadBit();
- return 0;
-}
-
-
-#endif
-
-// Setleds for standard RGB
-void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds)
-{
- // ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin));
- ws2812_setleds_pin(ledarray,leds, _BV(RGB_DI_PIN & 0xF));
-}
-
-void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask)
-{
- // ws2812_DDRREG |= pinmask; // Enable DDR
- // new universal format (DDR)
- _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
-
- ws2812_sendarray_mask((uint8_t*)ledarray,leds+leds+leds,pinmask);
- _delay_us(50);
-}
-
-// Setleds for SK6812RGBW
-void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds)
-{
-
- #ifdef RGBW_BB_TWI
- uint8_t sreg_prev, twcr_prev;
- sreg_prev=SREG;
- twcr_prev=TWCR;
- cli();
- TWCR &= ~(1<<TWEN);
- I2C_Init();
- I2C_Start();
- I2C_Write(0x84);
- uint16_t datlen = leds<<2;
- uint8_t curbyte;
- uint8_t * data = (uint8_t*)ledarray;
- while (datlen--) {
- curbyte=*data++;
- I2C_Write(curbyte);
- }
- I2C_Stop();
- SREG=sreg_prev;
- TWCR=twcr_prev;
- #endif
-
-
- // ws2812_DDRREG |= _BV(ws2812_pin); // Enable DDR
- // new universal format (DDR)
- _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
-
- ws2812_sendarray_mask((uint8_t*)ledarray,leds<<2,_BV(RGB_DI_PIN & 0xF));
-
-
- #ifndef RGBW_BB_TWI
- _delay_us(80);
- #endif
-}
-
-void ws2812_sendarray(uint8_t *data,uint16_t datlen)
-{
- ws2812_sendarray_mask(data,datlen,_BV(RGB_DI_PIN & 0xF));
-}
-
-/*
- This routine writes an array of bytes with RGB values to the Dataout pin
- using the fast 800kHz clockless WS2811/2812 protocol.
-*/
-
-// Timing in ns
-#define w_zeropulse 350
-#define w_onepulse 900
-#define w_totalperiod 1250
-
-// Fixed cycles used by the inner loop
-#define w_fixedlow 2
-#define w_fixedhigh 4
-#define w_fixedtotal 8
-
-// Insert NOPs to match the timing, if possible
-#define w_zerocycles (((F_CPU/1000)*w_zeropulse )/1000000)
-#define w_onecycles (((F_CPU/1000)*w_onepulse +500000)/1000000)
-#define w_totalcycles (((F_CPU/1000)*w_totalperiod +500000)/1000000)
-
-// w1 - nops between rising edge and falling edge - low
-#define w1 (w_zerocycles-w_fixedlow)
-// w2 nops between fe low and fe high
-#define w2 (w_onecycles-w_fixedhigh-w1)
-// w3 nops to complete loop
-#define w3 (w_totalcycles-w_fixedtotal-w1-w2)
-
-#if w1>0
- #define w1_nops w1
-#else
- #define w1_nops 0
-#endif
-
-// The only critical timing parameter is the minimum pulse length of the "0"
-// Warn or throw error if this timing can not be met with current F_CPU settings.
-#define w_lowtime ((w1_nops+w_fixedlow)*1000000)/(F_CPU/1000)
-#if w_lowtime>550
- #error "Light_ws2812: Sorry, the clock speed is too low. Did you set F_CPU correctly?"
-#elif w_lowtime>450
- #warning "Light_ws2812: The timing is critical and may only work on WS2812B, not on WS2812(S)."
- #warning "Please consider a higher clockspeed, if possible"
-#endif
-
-#if w2>0
-#define w2_nops w2
-#else
-#define w2_nops 0
-#endif
-
-#if w3>0
-#define w3_nops w3
-#else
-#define w3_nops 0
-#endif
-
-#define w_nop1 "nop \n\t"
-#define w_nop2 "rjmp .+0 \n\t"
-#define w_nop4 w_nop2 w_nop2
-#define w_nop8 w_nop4 w_nop4
-#define w_nop16 w_nop8 w_nop8
-
-void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
-{
- uint8_t curbyte,ctr,masklo;
- uint8_t sreg_prev;
-
- // masklo =~maskhi&ws2812_PORTREG;
- // maskhi |= ws2812_PORTREG;
- masklo =~maskhi&_SFR_IO8((RGB_DI_PIN >> 4) + 2);
- maskhi |= _SFR_IO8((RGB_DI_PIN >> 4) + 2);
- sreg_prev=SREG;
- cli();
-
- while (datlen--) {
- curbyte=(*data++);
-
- asm volatile(
- " ldi %0,8 \n\t"
- "loop%=: \n\t"
- " out %2,%3 \n\t" // '1' [01] '0' [01] - re
-#if (w1_nops&1)
-w_nop1
-#endif
-#if (w1_nops&2)
-w_nop2
-#endif
-#if (w1_nops&4)
-w_nop4
-#endif
-#if (w1_nops&8)
-w_nop8
-#endif
-#if (w1_nops&16)
-w_nop16
-#endif
- " sbrs %1,7 \n\t" // '1' [03] '0' [02]
- " out %2,%4 \n\t" // '1' [--] '0' [03] - fe-low
- " lsl %1 \n\t" // '1' [04] '0' [04]
-#if (w2_nops&1)
- w_nop1
-#endif
-#if (w2_nops&2)
- w_nop2
-#endif
-#if (w2_nops&4)
- w_nop4
-#endif
-#if (w2_nops&8)
- w_nop8
-#endif
-#if (w2_nops&16)
- w_nop16
-#endif
- " out %2,%4 \n\t" // '1' [+1] '0' [+1] - fe-high
-#if (w3_nops&1)
-w_nop1
-#endif
-#if (w3_nops&2)
-w_nop2
-#endif
-#if (w3_nops&4)
-w_nop4
-#endif
-#if (w3_nops&8)
-w_nop8
-#endif
-#if (w3_nops&16)
-w_nop16
-#endif
-
- " dec %0 \n\t" // '1' [+2] '0' [+2]
- " brne loop%=\n\t" // '1' [+3] '0' [+4]
- : "=&d" (ctr)
- : "r" (curbyte), "I" (_SFR_IO_ADDR(_SFR_IO8((RGB_DI_PIN >> 4) + 2))), "r" (maskhi), "r" (masklo)
- );
- }
-
- SREG=sreg_prev;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 02:27:33 +0000