WS2812 driver improvements (#20262)

1 files changed, 0 insertions, 172 deletions

diff --git a/platforms/avr/drivers/ws2812.c b/platforms/avr/drivers/ws2812.c
deleted file mode 100644
index 5c0cb3b718..0000000000
--- a/platforms/avr/drivers/ws2812.c
+++ /dev/null
@@ -1,172 +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 <avr/interrupt.h>
-#include <avr/io.h>
-#include <util/delay.h>
-#include "ws2812.h"
-#include "pin_defs.h"
-
-#define pinmask(pin) (_BV((pin)&0xF))
-
-/*
- * Forward declare internal functions
- *
- * The functions take a byte-array and send to the data output as WS2812 bitstream.
- * The length is the number of bytes to send - three per LED.
- */
-
-static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi);
-
-void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) {
-    DDRx_ADDRESS(RGB_DI_PIN) |= pinmask(RGB_DI_PIN);
-
-    uint8_t masklo = ~(pinmask(RGB_DI_PIN)) & PORTx_ADDRESS(RGB_DI_PIN);
-    uint8_t maskhi = pinmask(RGB_DI_PIN) | PORTx_ADDRESS(RGB_DI_PIN);
-
-    ws2812_sendarray_mask((uint8_t *)ledarray, number_of_leds * sizeof(LED_TYPE), masklo, maskhi);
-
-    _delay_us(WS2812_TRST_US);
-}
-
-/*
-  This routine writes an array of bytes with RGB values to the Dataout pin
-  using the fast 800kHz clockless WS2811/2812 protocol.
-*/
-
-// 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) * WS2812_T0H) / 1000000)
-#define w_onecycles (((F_CPU / 1000) * WS2812_T1H + 500000) / 1000000)
-#define w_totalcycles (((F_CPU / 1000) * WS2812_TIMING + 500000) / 1000000)
-
-// w1_nops - nops between rising edge and falling edge - low
-#if w_zerocycles >= w_fixedlow
-#    define w1_nops (w_zerocycles - w_fixedlow)
-#else
-#    define w1_nops 0
-#endif
-
-// w2_nops - nops between fe low and fe high
-#if w_onecycles >= (w_fixedhigh + w1_nops)
-#    define w2_nops (w_onecycles - w_fixedhigh - w1_nops)
-#else
-#    define w2_nops 0
-#endif
-
-// w3_nops - nops to complete loop
-#if w_totalcycles >= (w_fixedtotal + w1_nops + w2_nops)
-#    define w3_nops (w_totalcycles - w_fixedtotal - w1_nops - w2_nops)
-#else
-#    define w3_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
-
-#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
-
-static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi) {
-    uint8_t curbyte, ctr, sreg_prev;
-
-    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(PORTx_ADDRESS(RGB_DI_PIN))), "r"(maskhi), "r"(masklo));
-    }
-
-    SREG = sreg_prev;
-}