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light_ws2812_arch.c File Reference
#include <hal.h>
#include "modules/light/light_ws2812_arch.h"
#include "mcu_periph/hal_stm32_dma.h"
+ Include dependency graph for light_ws2812_arch.c:

Go to the source code of this file.

Data Structures

struct  WS2812Config
 Configuration structure. More...
 
struct  WS2812Driver
 Driver structure. More...
 

Macros

#define WS2812_SERVO_HZ   800000
 
#define WS2812_PWM_FREQUENCY   (STM32_SYSCLK/2)
 
#define WS2812_DUTYCYCLE_0   (WS2812_PWM_FREQUENCY/(1000000000/350))
 
#define WS2812_DUTYCYCLE_1   (WS2812_PWM_FREQUENCY/(1000000000/800))
 
#define WS2812_RESET_BIT_N   (50)
 
#define WS2812_COLOR_BIT_N   (WS2812_NB_LEDS * 24)
 
#define WS2812_BIT_N   (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N)
 
#define WS2812_CFG_DEF   WS2812D1_CFG_DEF
 
#define WS2812_DMA_IRQ_PRIORITY   6
 
#define WS2812_BIT(led, byte, bit)   (24*(led) + 8*(byte) + (7 - (bit)))
 
#define WS2812_RED_BIT(led, bit)   WS2812_BIT((led), 1, (bit))
 
#define WS2812_GREEN_BIT(led, bit)   WS2812_BIT((led), 0, (bit))
 
#define WS2812_BLUE_BIT(led, bit)   WS2812_BIT((led), 2, (bit))
 

Functions

void light_ws2812_arch_init (void)
 
void light_ws2812_arch_set (uint32_t led_number, uint8_t r, uint8_t g, uint8_t b)
 set color RGB color of one led More...
 

Variables

static WS2812Config WS2812CFG = WS2812_CFG_DEF
 
static WS2812Driver WS2812D
 

Data Structure Documentation

struct WS2812Config

Configuration structure.

Definition at line 57 of file light_ws2812_arch.c.

Data Fields
uint8_t dma_channel
uint8_t dma_priority
uint32_t dma_stream
uint8_t pwm_channel
PWMDriver * pwmp
struct WS2812Driver

Driver structure.

Definition at line 71 of file light_ws2812_arch.c.

+ Collaboration diagram for WS2812Driver:
Data Fields
uint32_t buf[WS2812_BIT_N+1]
const WS2812Config * config
DMAConfig dma_conf
DMADriver dmap
PWMConfig pwm_conf

Macro Definition Documentation

#define WS2812_BIT (   led,
  byte,
  bit 
)    (24*(led) + 8*(byte) + (7 - (bit)))

Definition at line 147 of file light_ws2812_arch.c.

#define WS2812_BIT_N   (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N)

Definition at line 45 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_BLUE_BIT (   led,
  bit 
)    WS2812_BIT((led), 2, (bit))

Definition at line 150 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_CFG_DEF   WS2812D1_CFG_DEF

Definition at line 49 of file light_ws2812_arch.c.

#define WS2812_COLOR_BIT_N   (WS2812_NB_LEDS * 24)

Definition at line 44 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_DMA_IRQ_PRIORITY   6

Definition at line 52 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_DUTYCYCLE_0   (WS2812_PWM_FREQUENCY/(1000000000/350))

Definition at line 40 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init(), and light_ws2812_arch_set().

#define WS2812_DUTYCYCLE_1   (WS2812_PWM_FREQUENCY/(1000000000/800))

Definition at line 41 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_GREEN_BIT (   led,
  bit 
)    WS2812_BIT((led), 0, (bit))

Definition at line 149 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_PWM_FREQUENCY   (STM32_SYSCLK/2)

Definition at line 38 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_RED_BIT (   led,
  bit 
)    WS2812_BIT((led), 1, (bit))

Definition at line 148 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_RESET_BIT_N   (50)

Definition at line 43 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_SERVO_HZ   800000

Definition at line 37 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

Function Documentation

void light_ws2812_arch_set ( uint32_t  led_number,
uint8_t  r,
uint8_t  g,
uint8_t  b 
)

set color RGB color of one led

Definition at line 152 of file light_ws2812_arch.c.

References WS2812Driver::buf, WS2812_BLUE_BIT, WS2812_DUTYCYCLE_0, WS2812_DUTYCYCLE_1, WS2812_GREEN_BIT, WS2812_NB_LEDS, and WS2812_RED_BIT.

Referenced by light_scheduler_periodic().

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Variable Documentation

WS2812Config WS2812CFG = WS2812_CFG_DEF
static

Definition at line 66 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

WS2812Driver WS2812D
static

Definition at line 80 of file light_ws2812_arch.c.