#include <stddef.h>
#include "sdkconfig.h"
#include "soc/soc_caps.h"
#include "hal/dma_types.h"
#include "esp_intr_alloc.h"
#include "esp_heap_caps.h"

Include dependency graph for esp_rgb_common.h:

Macros
#define	LCD_I80_INTR_ALLOC_FLAGS ESP_INTR_FLAG_INTRDISABLED

#define	LCD_I80_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT

#define	LCD_PERIPH_CLOCK_PRE_SCALE (2)

Functions
void	lcd_com_mount_dma_data (dma_descriptor_t desc_head, const void buffer, size_t len)
	Mount data to DMA descriptors.

static void	lcd_com_reverse_buffer_bytes (uint8_t *buf, int start, int end)
	Reverse the bytes in the buffer.

Macro Definition Documentation

◆ LCD_I80_INTR_ALLOC_FLAGS

#define LCD_I80_INTR_ALLOC_FLAGS ESP_INTR_FLAG_INTRDISABLED

Definition at line 22 of file esp_rgb_common.h.

◆ LCD_I80_MEM_ALLOC_CAPS

#define LCD_I80_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT

Definition at line 23 of file esp_rgb_common.h.

◆ LCD_PERIPH_CLOCK_PRE_SCALE

#define LCD_PERIPH_CLOCK_PRE_SCALE (2)

Definition at line 25 of file esp_rgb_common.h.

Function Documentation

◆ lcd_com_mount_dma_data()

void lcd_com_mount_dma_data	(	dma_descriptor_t *	desc_head,
		const void *	buffer,
		size_t	len
	)

Mount data to DMA descriptors.

Parameters

desc_head	Point to the head of DMA descriptor chain
buffer	Data buffer
len	Size of the data buffer, in bytes

◆ lcd_com_reverse_buffer_bytes()

static void lcd_com_reverse_buffer_bytes	(	uint8_t *	buf,
		int	start,
		int	end
	)

inlinestatic

Reverse the bytes in the buffer.

Note: LCD is big-endian, e.g. to send command 0x1234, byte 0x12 should appear on the bus first However, the low level peripheral (like i80, i2s) will send 0x34 first. This helper function is used to reverse the bytes order