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133 lines
3.3 KiB
133 lines
3.3 KiB
10 years ago
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#include <avr/io.h>
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#include <util/delay.h>
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#include <stdint.h>
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#include "iopins.h"
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#include "nsdelay.h"
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#include "wsrgb.h"
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#include "color.h"
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#include "ws_config.h"
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/* Driver code for WS2812B */
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void ws_init()
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{
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as_output(WS_PIN);
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}
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/** Wait long enough for the colors to show */
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void ws_show() {
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delay_ns_c(WS_T_LATCH, 0);
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}
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/** Send one byte to the RGB strip */
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void ws_send_byte(const uint8_t bb)
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{
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for (volatile int8_t i = 7; i >= 0; --i) {
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if ((bb) & (1 << i)) {
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pin_high(WS_PIN);
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delay_ns_c(WS_T_1H, -2);
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pin_low(WS_PIN);
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delay_ns_c(WS_T_1L, -10);
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} else {
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pin_high(WS_PIN);
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delay_ns_c(WS_T_0H, -2);
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pin_low(WS_PIN);
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delay_ns_c(WS_T_0L, -10);
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}
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}
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}
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/** Send R,G,B color to the strip */
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void ws_send_rgb(const uint8_t r, const uint8_t g, const uint8_t b)
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{
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ws_send_byte(g);
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ws_send_byte(r);
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ws_send_byte(b);
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}
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/** Send a RGB struct */
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void ws_send_xrgb(xrgb_t xrgb)
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{
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ws_send_byte(xrgb.g);
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ws_send_byte(xrgb.r);
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ws_send_byte(xrgb.b);
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}
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/** Send color hex */
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void ws_send_rgb24(rgb24_t rgb)
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{
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ws_send_byte(rgb24_g(rgb));
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ws_send_byte(rgb24_r(rgb));
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ws_send_byte(rgb24_b(rgb));
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}
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/** Send array of colors */
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void ws_send_xrgb_array(const xrgb_t rgbs[], const uint8_t length)
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{
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for (uint8_t i = 0; i < length; i++) {
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const xrgb_t c = rgbs[i];
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ws_send_byte(c.g);
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ws_send_byte(c.r);
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ws_send_byte(c.b);
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}
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}
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/** Send array of colors */
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void ws_send_rgb24_array(const rgb24_t rgbs[], const uint8_t length)
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{
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for (uint8_t i = 0; i < length; i++) {
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const rgb24_t c = rgbs[i];
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ws_send_byte(rgb24_g(c));
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ws_send_byte(rgb24_r(c));
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ws_send_byte(rgb24_b(c));
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}
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}
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//#define ws_send_rgb24_array(rgbs, length) __ws_send_array_proto((rgbs), (length), rgb24)
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// prototype for sending array. it's ugly, sorry.
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/*#define __ws_send_array_proto(rgbs, length, style) { \
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for (uint8_t __rgb_sap_i = 0; __rgb_sap_i < length; __rgb_sap_i++) { \
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style ## _t __rgb_sap2 = (rgbs)[__rgb_sap_i]; \
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ws_send_ ## style(__rgb_sap2); \
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} \
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}*/
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// /** Send a 2D array to a zig-zag display */
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// #define ws_send_xrgb_array_zigzag(rgbs, width, height) { \
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// int8_t __rgb_sxaz_y, __rgb_sxaz_x; \
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// for(__rgb_sxaz_y = 0; __rgb_sxaz_y < (height); __rgb_sxaz_y ++) { \
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// for(__rgb_sxaz_x = 0; __rgb_sxaz_x < (width); __rgb_sxaz_x++) { \
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// ws_send_xrgb((rgbs)[__rgb_sxaz_y][__rgb_sxaz_x]); \
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// } \
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// __rgb_sxaz_y++; \
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// for(__rgb_sxaz_x = (width) - 1; __rgb_sxaz_x >= 0; __rgb_sxaz_x--) { \
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// ws_send_xrgb((rgbs)[__rgb_sxaz_y][__rgb_sxaz_x]); \
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// } \
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// } \
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// }
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// /* Send a linear array to a zig-zag display as a n*m board (row-by-row)
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// #define ws_send_xrgb_array_zigzag_linear(rgbs, width, height) { \
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// int8_t __rgb_sxazl_x, __rgb_sxazl_y; \
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// for(__rgb_sxazl_y = 0; __rgb_sxazl_y < (height); __rgb_sxazl_y++) { \
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// for(__rgb_sxazl_x = 0; __rgb_sxazl_x < (width); __rgb_sxazl_x++) { \
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// ws_send_xrgb((rgbs)[__rgb_sxazl_y * (width) + __rgb_sxazl_x]); \
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// } \
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// __rgb_sxazl_y++; \
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// for(__rgb_sxazl_x = width-1; __rgb_sxazl_x >=0; __rgb_sxazl_x--) { \
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// ws_send_xrgb((rgbs)[__rgb_sxazl_y * (width) + __rgb_sxazl_x]); \
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// } \
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// } \
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// }
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