/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Driver for the s5k4aa sensor
 *
 * Copyright (C) 2008 Erik Andrén
 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
 *
 * Portions of code to USB interface and ALi driver software,
 * Copyright (c) 2006 Willem Duinker
 * v4l2 interface modeled after the V4L2 driver
 * for SN9C10x PC Camera Controllers
 */

#ifndef M5602_S5K4AA_H_
#define M5602_S5K4AA_H_

#include <linux/dmi.h>

#include "m5602_sensor.h"

/*****************************************************************************/

#define S5K4AA_PAGE_MAP                 0xec

#define S5K4AA_PAGE_MAP_0               0x00
#define S5K4AA_PAGE_MAP_1               0x01
#define S5K4AA_PAGE_MAP_2               0x02

/* Sensor register definitions for page 0x02 */
#define S5K4AA_READ_MODE                0x03
#define S5K4AA_ROWSTART_HI              0x04
#define S5K4AA_ROWSTART_LO              0x05
#define S5K4AA_COLSTART_HI              0x06
#define S5K4AA_COLSTART_LO              0x07
#define S5K4AA_WINDOW_HEIGHT_HI         0x08
#define S5K4AA_WINDOW_HEIGHT_LO         0x09
#define S5K4AA_WINDOW_WIDTH_HI          0x0a
#define S5K4AA_WINDOW_WIDTH_LO          0x0b
#define S5K4AA_GLOBAL_GAIN__            0x0f
/* sync lost, if too low, reduces frame rate if too high */
#define S5K4AA_H_BLANK_HI__             0x1d
#define S5K4AA_H_BLANK_LO__             0x1e
#define S5K4AA_EXPOSURE_HI              0x17
#define S5K4AA_EXPOSURE_LO              0x18
#define S5K4AA_BRIGHTNESS               0x1f /* (digital?) gain : 5 bits */
#define S5K4AA_GAIN                     0x20 /* (analogue?) gain : 7 bits */
#define S5K4AA_NOISE_SUPP               0x37

#define S5K4AA_RM_ROW_SKIP_4X           0x08
#define S5K4AA_RM_ROW_SKIP_2X           0x04
#define S5K4AA_RM_COL_SKIP_4X           0x02
#define S5K4AA_RM_COL_SKIP_2X           0x01
#define S5K4AA_RM_H_FLIP                0x40
#define S5K4AA_RM_V_FLIP                0x80

#define S5K4AA_DEFAULT_GAIN             0x5f
#define S5K4AA_DEFAULT_BRIGHTNESS       0x10

/*****************************************************************************/

/* Kernel module parameters */
extern int force_sensor;
extern bool dump_sensor;

int s5k4aa_probe(struct sd *sd);
int s5k4aa_init(struct sd *sd);
int s5k4aa_init_controls(struct sd *sd);
int s5k4aa_start(struct sd *sd);
void s5k4aa_disconnect(struct sd *sd);

static const struct m5602_sensor s5k4aa = {
        .name = "S5K4AA",
        .i2c_slave_id = 0x5a,
        .i2c_regW = 2,

        .probe = s5k4aa_probe,
        .init = s5k4aa_init,
        .init_controls = s5k4aa_init_controls,
        .start = s5k4aa_start,
        .disconnect = s5k4aa_disconnect,
};

#endif