1 files changed, 0 insertions, 75 deletions
diff --git a/ports/esp8266/espneopixel.c b/ports/esp8266/espneopixel.c
deleted file mode 100644
index d2166a8b0..000000000
--- a/ports/esp8266/espneopixel.c
+++ /dev/null
@@ -1,75 +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