light_ws2812_arch.c File Reference

#include <hal.h>
#include "modules/light/light_ws2812_arch.h"
#include "mcu_periph/hal_stm32_dma.h"
#include "mcu_periph/gpio.h"
#include <BOARD_CONFIG>

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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_GPIO   WS2812D1_GPIO
#define	WS2812_PIN   WS2812D1_PIN
#define	WS2812_AF   WS2812D1_AF
#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

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Data Structure Documentation

struct WS2812Config

Configuration structure.

Definition at line 63 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 77 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_AF   WS2812D1_AF

Definition at line 54 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

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

Definition at line 156 of file light_ws2812_arch.c.

#define WS2812_BIT_N   (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N)

Definition at line 48 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 159 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_CFG_DEF   WS2812D1_CFG_DEF

Definition at line 55 of file light_ws2812_arch.c.

#define WS2812_COLOR_BIT_N   (WS2812_NB_LEDS * 24)

Definition at line 47 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_DMA_IRQ_PRIORITY   6

Definition at line 58 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

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

Definition at line 43 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 44 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_GPIO   WS2812D1_GPIO

Definition at line 52 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

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

Definition at line 158 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_PIN   WS2812D1_PIN

Definition at line 53 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_PWM_FREQUENCY   (STM32_SYSCLK/2)

Definition at line 41 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 157 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_set().

#define WS2812_RESET_BIT_N   (50)

Definition at line 46 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

#define WS2812_SERVO_HZ   800000

Definition at line 40 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

Function Documentation

void light_ws2812_arch_init

(

void

)

Definition at line 88 of file light_ws2812_arch.c.

References WS2812Driver::buf, WS2812Driver::config, WS2812Config::dma_channel, WS2812Driver::dma_conf, DMA_DIR_M2P, WS2812Config::dma_priority, WS2812Config::dma_stream, dmaObjectInit(), WS2812Driver::dmap, dmaStart(), dmaStartTransfert(), gpio_setup_pin_af(), WS2812Config::pwm_channel, WS2812Driver::pwm_conf, WS2812Config::pwmp, DMAConfig::stream, WS2812_AF, WS2812_BIT_N, WS2812_COLOR_BIT_N, WS2812_DMA_IRQ_PRIORITY, WS2812_DUTYCYCLE_0, WS2812_GPIO, WS2812_PIN, WS2812_PWM_FREQUENCY, WS2812_RESET_BIT_N, WS2812_SERVO_HZ, and WS2812CFG.

Referenced by light_scheduler_init().

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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 161 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 72 of file light_ws2812_arch.c.

Referenced by light_ws2812_arch_init().

WS2812Driver WS2812D

static

Definition at line 86 of file light_ws2812_arch.c.