drivers/media/i2c/et8ek8/et8ek8_mode.c

Source file repositories/reference/linux-study-clean/drivers/media/i2c/et8ek8/et8ek8_mode.c

File Facts

System
Linux kernel
Corpus path
drivers/media/i2c/et8ek8/et8ek8_mode.c
Extension
.c
Size
15164 bytes
Lines
571
Domain
Driver Families
Bucket
drivers/media
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-only
/*
 * et8ek8_mode.c
 *
 * Copyright (C) 2008 Nokia Corporation
 *
 * Contact: Sakari Ailus <sakari.ailus@iki.fi>
 *          Tuukka Toivonen <tuukkat76@gmail.com>
 */

#include "et8ek8_reg.h"

/*
 * Stingray sensor mode settings for Scooby
 */

/* Mode1_poweron_Mode2_16VGA_2592x1968_12.07fps */
static struct et8ek8_reglist mode1_poweron_mode2_16vga_2592x1968_12_07fps = {
/* (without the +1)
 * SPCK       = 80 MHz
 * CCP2       = 640 MHz
 * VCO        = 640 MHz
 * VCOUNT     = 84 (2016)
 * HCOUNT     = 137 (3288)
 * CKREF_DIV  = 2
 * CKVAR_DIV  = 200
 * VCO_DIV    = 0
 * SPCK_DIV   = 7
 * MRCK_DIV   = 7
 * LVDSCK_DIV = 0
 */
	.type = ET8EK8_REGLIST_POWERON,
	.mode = {
		.sensor_width = 2592,
		.sensor_height = 1968,
		.sensor_window_origin_x = 0,
		.sensor_window_origin_y = 0,
		.sensor_window_width = 2592,
		.sensor_window_height = 1968,
		.width = 3288,
		.height = 2016,
		.window_origin_x = 0,
		.window_origin_y = 0,
		.window_width = 2592,
		.window_height = 1968,
		.pixel_clock = 80000000,
		.timeperframe = {
			.numerator = 100,
			.denominator = 1207
		},
		.max_exp = 2012,
		/* .max_gain = 0, */
		.bus_format = MEDIA_BUS_FMT_SGRBG10_1X10,
		.sensitivity = 65536
	},
	.regs = {
		/* Need to set firstly */
		{ ET8EK8_REG_8BIT, 0x126C, 0xCC },
		/* Strobe and Data of CCP2 delay are minimized. */
		{ ET8EK8_REG_8BIT, 0x1269, 0x00 },
		/* Refined value of Min H_COUNT  */
		{ ET8EK8_REG_8BIT, 0x1220, 0x89 },
		/* Frequency of SPCK setting (SPCK=MRCK) */
		{ ET8EK8_REG_8BIT, 0x123A, 0x07 },
		{ ET8EK8_REG_8BIT, 0x1241, 0x94 },
		{ ET8EK8_REG_8BIT, 0x1242, 0x02 },
		{ ET8EK8_REG_8BIT, 0x124B, 0x00 },
		{ ET8EK8_REG_8BIT, 0x1255, 0xFF },
		{ ET8EK8_REG_8BIT, 0x1256, 0x9F },
		{ ET8EK8_REG_8BIT, 0x1258, 0x00 },
		/* From parallel out to serial out */
		{ ET8EK8_REG_8BIT, 0x125D, 0x88 },
		/* From w/ embedded data to w/o embedded data */
		{ ET8EK8_REG_8BIT, 0x125E, 0xC0 },
		/* CCP2 out is from STOP to ACTIVE */
		{ ET8EK8_REG_8BIT, 0x1263, 0x98 },
		{ ET8EK8_REG_8BIT, 0x1268, 0xC6 },
		{ ET8EK8_REG_8BIT, 0x1434, 0x00 },
		{ ET8EK8_REG_8BIT, 0x1163, 0x44 },
		{ ET8EK8_REG_8BIT, 0x1166, 0x29 },
		{ ET8EK8_REG_8BIT, 0x1140, 0x02 },
		{ ET8EK8_REG_8BIT, 0x1011, 0x24 },
		{ ET8EK8_REG_8BIT, 0x1151, 0x80 },
		{ ET8EK8_REG_8BIT, 0x1152, 0x23 },
		/* Initial setting for improvement2 of lower frequency noise */
		{ ET8EK8_REG_8BIT, 0x1014, 0x05 },
		{ ET8EK8_REG_8BIT, 0x1033, 0x06 },
		{ ET8EK8_REG_8BIT, 0x1034, 0x79 },
		{ ET8EK8_REG_8BIT, 0x1423, 0x3F },
		{ ET8EK8_REG_8BIT, 0x1424, 0x3F },

Annotation

Implementation Notes