drivers/staging/fbtft/fb_s6d02a1.c

Source file repositories/reference/linux-study-clean/drivers/staging/fbtft/fb_s6d02a1.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/fbtft/fb_s6d02a1.c
Extension
.c
Size
3354 bytes
Lines
155
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0+
/*
 * FB driver for the S6D02A1 LCD Controller
 *
 * Based on fb_st7735r.c by Noralf Tronnes
 * Init code from UTFT library by Henning Karlsen
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <video/mipi_display.h>

#include "fbtft.h"

#define DRVNAME "fb_s6d02a1"

static const s16 default_init_sequence[] = {
	-1, 0xf0, 0x5a, 0x5a,

	-1, 0xfc, 0x5a, 0x5a,

	-1, 0xfa, 0x02, 0x1f, 0x00, 0x10, 0x22, 0x30, 0x38,
	0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3d, 0x02, 0x01,

	-1, 0xfb, 0x21, 0x00, 0x02, 0x04, 0x07, 0x0a, 0x0b,
	0x0c, 0x0c, 0x16, 0x1e, 0x30, 0x3f, 0x01, 0x02,

	/* power setting sequence */
	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x01,
	0x01, 0x00, 0x1f, 0x1f,

	-1, 0xf4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f,
	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,

	-1, 0xf5, 0x00, 0x70, 0x66, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x6d, 0x66, 0x06,

	-1, 0xf6, 0x02, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x02,
	0x00, 0x06, 0x01, 0x00,

	-1, 0xf2, 0x00, 0x01, 0x03, 0x08, 0x08, 0x04, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x04, 0x08, 0x08,

	-1, 0xf8, 0x11,

	-1, 0xf7, 0xc8, 0x20, 0x00, 0x00,

	-1, 0xf3, 0x00, 0x00,

	-1, MIPI_DCS_EXIT_SLEEP_MODE,
	-2, 50,

	-1, 0xf3, 0x00, 0x01,
	-2, 50,
	-1, 0xf3, 0x00, 0x03,
	-2, 50,
	-1, 0xf3, 0x00, 0x07,
	-2, 50,
	-1, 0xf3, 0x00, 0x0f,
	-2, 50,

	-1, 0xf4, 0x00, 0x04, 0x00, 0x00, 0x00, 0x3f, 0x3f,
	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
	-2, 50,

	-1, 0xf3, 0x00, 0x1f,
	-2, 50,
	-1, 0xf3, 0x00, 0x7f,
	-2, 50,

	-1, 0xf3, 0x00, 0xff,
	-2, 50,

	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x00,
	0x01, 0x00, 0x16, 0x16,

	-1, 0xf4, 0x00, 0x09, 0x00, 0x00, 0x00, 0x3f, 0x3f,
	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,

	/* initializing sequence */

	-1, MIPI_DCS_SET_ADDRESS_MODE, 0x08,

	-1, MIPI_DCS_SET_TEAR_ON, 0x00,

	-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x05,

	/* gamma setting - possible values 0x01, 0x02, 0x04, 0x08 */
	-1, MIPI_DCS_SET_GAMMA_CURVE, 0x01,

Annotation

Implementation Notes