1 files changed, 0 insertions, 65 deletions
diff --git a/esp8266/espneopixel.c b/esp8266/espneopixel.c
deleted file mode 100644
index 6c76591865..0000000000
--- a/esp8266/espneopixel.c
+++ /dev/null
@@ -1,65 +0,0 @@
-// Original version from https://github.com/adafruit/Adafruit_NeoPixel
-// Modifications by dpgeorge to support auto-CPU-frequency detection
-
-// This is a mash-up of the Due show() code + insights from Michael Miller's
-// ESP8266 work for the NeoPixelBus library: github.com/Makuna/NeoPixelBus
-// Needs to be a separate .c file to enforce ICACHE_RAM_ATTR execution.
-
-#include "py/mpconfig.h"
-#if MICROPY_ESP8266_NEOPIXEL
-
-#include "c_types.h"
-#include "eagle_soc.h"
-#include "user_interface.h"
-#include "espneopixel.h"
-#include "esp_mphal.h"
-
-#define NEO_KHZ400 (1)
-
-void /*ICACHE_RAM_ATTR*/ esp_neopixel_write(uint8_t pin, uint8_t *pixels, uint32_t numBytes, bool is800KHz) {
-
-  uint8_t *p, *end, pix, mask;
-  uint32_t t, time0, time1, period, c, startTime, pinMask;
-
-  pinMask   = 1 << pin;
-  p         =  pixels;
-  end       =  p + numBytes;
-  pix       = *p++;
-  mask      = 0x80;
-  startTime = 0;
-
-  uint32_t fcpu = system_get_cpu_freq() * 1000000;
-
-#ifdef NEO_KHZ400
-  if(is800KHz) {
-#endif
-    time0  = fcpu / 2857143; // 0.35us
-    time1  = fcpu / 1250000; // 0.8us
-    period = fcpu /  800000; // 1.25us per bit
-#ifdef NEO_KHZ400
-  } else { // 400 KHz bitstream
-    time0  = fcpu / 2000000; // 0.5uS
-    time1  = fcpu /  833333; // 1.2us
-    period = fcpu /  400000; // 2.5us per bit
-  }
-#endif
-
-  uint32_t irq_state = mp_hal_quiet_timing_enter();
-  for(t = time0;; t = time0) {
-    if(pix & mask) t = time1;                             // Bit high duration
-    while(((c = mp_hal_ticks_cpu()) - startTime) < period); // Wait for bit start
-    GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinMask);       // Set high
-    startTime = c;                                        // Save start time
-    while(((c = mp_hal_ticks_cpu()) - startTime) < t);      // Wait high duration
-    GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinMask);       // Set low
-    if(!(mask >>= 1)) {                                   // Next bit/byte
-      if(p >= end) break;
-      pix  = *p++;
-      mask = 0x80;
-    }
-  }
-  while((mp_hal_ticks_cpu() - startTime) < period); // Wait for last bit
-  mp_hal_quiet_timing_exit(irq_state);
-}
-
-#endif // MICROPY_ESP8266_NEOPIXEL