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Added attribution and fixed documentation in comments

This commit is contained in:
Till Klocke 2015-02-05 18:47:08 +01:00
parent c30002b8df
commit 284ee8c46e
1 changed files with 11 additions and 4 deletions
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15
app/modules/ws2812.c
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@ -3,6 +3,13 @@
#include "platform.h" #include "platform.h"
#include "auxmods.h" #include "auxmods.h"
#include "lrotable.h" #include "lrotable.h"
/**
* All this code is mostly from http://www.esp8266.com/viewtopic.php?f=21&t=1143&sid=a620a377672cfe9f666d672398415fcb
* from user Markus Gritsch.
* I just put this code into its own module and pushed into a forked repo,
* to easily create a pull request. Thanks to Markus Gritsch for the code.
*
*/
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// -- This WS2812 code must be compiled with -O2 to get the timing right. // -- This WS2812 code must be compiled with -O2 to get the timing right.
@ -23,11 +30,11 @@ static void ICACHE_FLASH_ATTR send_ws_1(uint8_t gpio)
i = 6; while (i--) GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, 1 << gpio); i = 6; while (i--) GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, 1 << gpio);
} }
// Lua: ws2812(pin, "string") // Lua: ws2812.write(pin, "string")
// Byte triples in the string are interpreted as G R B values. // Byte triples in the string are interpreted as G R B values.
// gpio.ws2812(4, string.char(0, 255, 0)) uses GPIO2 and sets the first LED red. // ws2812.write(4, string.char(0, 255, 0)) uses GPIO2 and sets the first LED red.
// gpio.ws2812(3, string.char(0, 0, 255):rep(10)) uses GPIO0 and sets ten LEDs blue. // ws2812.write(3, string.char(0, 0, 255):rep(10)) uses GPIO0 and sets ten LEDs blue.
// gpio.ws2812(4, string.char(255, 0, 0, 255, 255, 255)) first LED green, second LED white. // ws2812.write(4, string.char(255, 0, 0, 255, 255, 255)) first LED green, second LED white.
static int ICACHE_FLASH_ATTR lgpio_ws2812(lua_State* L) static int ICACHE_FLASH_ATTR lgpio_ws2812(lua_State* L)
{ {
const uint8_t pin = luaL_checkinteger(L, 1); const uint8_t pin = luaL_checkinteger(L, 1);