diff options
author | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
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committer | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
commit | f061ca497464fe85284906fb163a33eaee7a91ef (patch) | |
tree | 33ef1bfb529aed382e8526c607c4e18717f92571 /keyboards/cannonkeys/bluepill/ws2812.c | |
parent | ff65185dec6f97be1eb49f17cea526a0d0bbf3d6 (diff) | |
parent | 4bad375d7c09d949a9dcdd4feba147c9c7a67ec6 (diff) |
Breaking changes develop merge to master, 2021Q3 edition. (#14196)
Diffstat (limited to 'keyboards/cannonkeys/bluepill/ws2812.c')
-rw-r--r-- | keyboards/cannonkeys/bluepill/ws2812.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/keyboards/cannonkeys/bluepill/ws2812.c b/keyboards/cannonkeys/bluepill/ws2812.c deleted file mode 100644 index 779e905198..0000000000 --- a/keyboards/cannonkeys/bluepill/ws2812.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * LEDDriver.c - * - * Created on: Aug 26, 2013 - * Author: Omri Iluz - */ - -#include "ws2812.h" -#include <stdlib.h> - -#define BYTES_FOR_LED_BYTE 4 -#define NB_COLORS 3 -#define BYTES_FOR_LED BYTES_FOR_LED_BYTE*NB_COLORS -#define DATA_SIZE BYTES_FOR_LED*NB_LEDS -#define RESET_SIZE 200 -#define PREAMBLE_SIZE 4 -// Define the spi your LEDs are plugged to here -#define WS2812_SPI SPID2 -// Define the number of LEDs you wish to control in your LED strip -#define NB_LEDS RGBLED_NUM - - #define LED_SPIRAL 1 - - static uint8_t txbuf[PREAMBLE_SIZE + DATA_SIZE + RESET_SIZE]; -static uint8_t get_protocol_eq(uint8_t data, int pos); - - /* - * This lib is meant to be used asynchronously, thus the colors contained in - * the txbuf will be sent in loop, so that the colors are always the ones you - * put in the table (the user thus have less to worry about) - * - * Since the data are sent via DMA, and the call to spiSend is a blocking one, - * the processor ressources are not used to much, if you see your program being - * too slow, simply add a: - * chThdSleepMilliseconds(x); - * after the spiSend, where you increment x untill you are satisfied with your - * program speed, another trick may be to lower this thread priority : your call - */ -static THD_WORKING_AREA(LEDS_THREAD_WA, 128); -static THD_FUNCTION(ledsThread, arg) { - (void) arg; - while(1){ - spiSend(&WS2812_SPI, PREAMBLE_SIZE + DATA_SIZE + RESET_SIZE, txbuf); - } -} - - static const SPIConfig spicfg = { - false, - NULL, - PORT_WS2812, - PIN_WS2812, - SPI_CR1_BR_1|SPI_CR1_BR_0 // baudrate : fpclk / 8 => 1tick is 0.32us (2.25 MHz) -}; - - /* - * Function used to initialize the driver. - * - * Starts by shutting off all the LEDs. - * Then gets access on the LED_SPI driver. - * May eventually launch an animation on the LEDs (e.g. a thread setting the - * txbuff values) - */ -void leds_init(void){ - /* MOSI pin*/ - palSetPadMode(PORT_WS2812, PIN_WS2812, PAL_MODE_STM32_ALTERNATE_PUSHPULL); - for(int i = 0; i < RESET_SIZE; i++) - txbuf[DATA_SIZE+i] = 0x00; - for (int i=0; i<PREAMBLE_SIZE; i++) - txbuf[i] = 0x00; - spiAcquireBus(&WS2812_SPI); /* Acquire ownership of the bus. */ - spiStart(&WS2812_SPI, &spicfg); /* Setup transfer parameters. */ - spiSelect(&WS2812_SPI); /* Slave Select assertion. */ - chThdCreateStatic(LEDS_THREAD_WA, sizeof(LEDS_THREAD_WA),NORMALPRIO, ledsThread, NULL); -} - - /* - * As the trick here is to use the SPI to send a huge pattern of 0 and 1 to - * the ws2812b protocol, we use this helper function to translate bytes into - * 0s and 1s for the LED (with the appropriate timing). - */ -static uint8_t get_protocol_eq(uint8_t data, int pos){ - uint8_t eq = 0; - if (data & (1 << (2*(3-pos)))) - eq = 0b1110; - else - eq = 0b1000; - if (data & (2 << (2*(3-pos)))) - eq += 0b11100000; - else - eq += 0b10000000; - return eq; -} - - - void WS2812_init(void) { - leds_init(); -} - - void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) { - uint8_t i = 0; - while (i < number_of_leds) { - set_led_color_rgb(ledarray[i], i); - i++; - } -} - - /* - * If you want to set a LED's color in the RGB color space, simply call this - * function with a hsv_color containing the desired color and the index of the - * led on the LED strip (starting from 0, the first one being the closest the - * first plugged to the board) - * - * Only set the color of the LEDs through the functions given by this API - * (unless you really know what you are doing) - */ -void set_led_color_rgb(LED_TYPE color, int pos){ - for(int j = 0; j < 4; j++) - txbuf[PREAMBLE_SIZE + BYTES_FOR_LED*pos + j] = get_protocol_eq(color.g, j); - for(int j = 0; j < 4; j++) - txbuf[PREAMBLE_SIZE + BYTES_FOR_LED*pos + BYTES_FOR_LED_BYTE+j] = get_protocol_eq(color.r, j); - for(int j = 0; j < 4; j++) - txbuf[PREAMBLE_SIZE + BYTES_FOR_LED*pos + BYTES_FOR_LED_BYTE*2+j] = get_protocol_eq(color.b, j); -} - - void set_leds_color_rgb(LED_TYPE color){ - for(int i = 0; i < NB_LEDS; i++) - set_led_color_rgb(color, i); -} - - - void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds) { - - } |