![Sakari Ailus](/assets/img/avatar_default.png)
A number of sub-device drivers used a static name for the sub-device, and thus the media entity. As the entity name must be unique within a media device, this makes it impossible to have more than one instance of each device in a media device. This is a rather severe limitation. Instead of fixing these drivers, add a comment to the drivers noting that such static names may not be used in the future. The alternative of fixing the drivers is troublesome as the entity (as well as sub-device) name is part of the uAPI. Changing that is almost certain to break something. As these devices are old but no-one has encountered a problem with the static names, leave it as-is. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
831 lines
20 KiB
C
831 lines
20 KiB
C
/*
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* Driver for SiliconFile NOON010PC30 CIF (1/11") Image Sensor with ISP
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*
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* Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd.
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* Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
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*
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* Initial register configuration based on a driver authored by
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* HeungJun Kim <riverful.kim@samsung.com>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/regulator/consumer.h>
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#include <media/i2c/noon010pc30.h>
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#include <linux/videodev2.h>
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#include <linux/module.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-mediabus.h>
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#include <media/v4l2-subdev.h>
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Enable module debug trace. Set to 1 to enable.");
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#define MODULE_NAME "NOON010PC30"
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/*
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* Register offsets within a page
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* b15..b8 - page id, b7..b0 - register address
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*/
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#define POWER_CTRL_REG 0x0001
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#define PAGEMODE_REG 0x03
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#define DEVICE_ID_REG 0x0004
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#define NOON010PC30_ID 0x86
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#define VDO_CTL_REG(n) (0x0010 + (n))
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#define SYNC_CTL_REG 0x0012
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/* Window size and position */
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#define WIN_ROWH_REG 0x0013
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#define WIN_ROWL_REG 0x0014
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#define WIN_COLH_REG 0x0015
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#define WIN_COLL_REG 0x0016
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#define WIN_HEIGHTH_REG 0x0017
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#define WIN_HEIGHTL_REG 0x0018
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#define WIN_WIDTHH_REG 0x0019
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#define WIN_WIDTHL_REG 0x001A
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#define HBLANKH_REG 0x001B
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#define HBLANKL_REG 0x001C
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#define VSYNCH_REG 0x001D
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#define VSYNCL_REG 0x001E
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/* VSYNC control */
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#define VS_CTL_REG(n) (0x00A1 + (n))
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/* page 1 */
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#define ISP_CTL_REG(n) (0x0110 + (n))
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#define YOFS_REG 0x0119
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#define DARK_YOFS_REG 0x011A
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#define SAT_CTL_REG 0x0120
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#define BSAT_REG 0x0121
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#define RSAT_REG 0x0122
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/* Color correction */
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#define CMC_CTL_REG 0x0130
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#define CMC_OFSGH_REG 0x0133
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#define CMC_OFSGL_REG 0x0135
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#define CMC_SIGN_REG 0x0136
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#define CMC_GOFS_REG 0x0137
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#define CMC_COEF_REG(n) (0x0138 + (n))
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#define CMC_OFS_REG(n) (0x0141 + (n))
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/* Gamma correction */
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#define GMA_CTL_REG 0x0160
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#define GMA_COEF_REG(n) (0x0161 + (n))
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/* Lens Shading */
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#define LENS_CTRL_REG 0x01D0
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#define LENS_XCEN_REG 0x01D1
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#define LENS_YCEN_REG 0x01D2
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#define LENS_RC_REG 0x01D3
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#define LENS_GC_REG 0x01D4
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#define LENS_BC_REG 0x01D5
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#define L_AGON_REG 0x01D6
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#define L_AGOFF_REG 0x01D7
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/* Page 3 - Auto Exposure */
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#define AE_CTL_REG(n) (0x0310 + (n))
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#define AE_CTL9_REG 0x032C
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#define AE_CTL10_REG 0x032D
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#define AE_YLVL_REG 0x031C
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#define AE_YTH_REG(n) (0x031D + (n))
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#define AE_WGT_REG 0x0326
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#define EXP_TIMEH_REG 0x0333
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#define EXP_TIMEM_REG 0x0334
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#define EXP_TIMEL_REG 0x0335
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#define EXP_MMINH_REG 0x0336
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#define EXP_MMINL_REG 0x0337
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#define EXP_MMAXH_REG 0x0338
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#define EXP_MMAXM_REG 0x0339
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#define EXP_MMAXL_REG 0x033A
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/* Page 4 - Auto White Balance */
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#define AWB_CTL_REG(n) (0x0410 + (n))
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#define AWB_ENABE 0x80
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#define AWB_WGHT_REG 0x0419
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#define BGAIN_PAR_REG(n) (0x044F + (n))
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/* Manual white balance, when AWB_CTL2[0]=1 */
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#define MWB_RGAIN_REG 0x0466
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#define MWB_BGAIN_REG 0x0467
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/* The token to mark an array end */
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#define REG_TERM 0xFFFF
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struct noon010_format {
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u32 code;
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enum v4l2_colorspace colorspace;
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u16 ispctl1_reg;
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};
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struct noon010_frmsize {
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u16 width;
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u16 height;
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int vid_ctl1;
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};
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static const char * const noon010_supply_name[] = {
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"vdd_core", "vddio", "vdda"
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};
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#define NOON010_NUM_SUPPLIES ARRAY_SIZE(noon010_supply_name)
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struct noon010_info {
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struct v4l2_subdev sd;
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struct media_pad pad;
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struct v4l2_ctrl_handler hdl;
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struct regulator_bulk_data supply[NOON010_NUM_SUPPLIES];
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u32 gpio_nreset;
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u32 gpio_nstby;
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/* Protects the struct members below */
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struct mutex lock;
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const struct noon010_format *curr_fmt;
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const struct noon010_frmsize *curr_win;
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unsigned int apply_new_cfg:1;
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unsigned int streaming:1;
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unsigned int hflip:1;
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unsigned int vflip:1;
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unsigned int power:1;
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u8 i2c_reg_page;
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};
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struct i2c_regval {
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u16 addr;
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u16 val;
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};
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/* Supported resolutions. */
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static const struct noon010_frmsize noon010_sizes[] = {
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{
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.width = 352,
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.height = 288,
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.vid_ctl1 = 0,
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}, {
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.width = 176,
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.height = 144,
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.vid_ctl1 = 0x10,
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}, {
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.width = 88,
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.height = 72,
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.vid_ctl1 = 0x20,
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},
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};
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/* Supported pixel formats. */
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static const struct noon010_format noon010_formats[] = {
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{
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.code = MEDIA_BUS_FMT_YUYV8_2X8,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.ispctl1_reg = 0x03,
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}, {
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.code = MEDIA_BUS_FMT_YVYU8_2X8,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.ispctl1_reg = 0x02,
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}, {
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.code = MEDIA_BUS_FMT_VYUY8_2X8,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.ispctl1_reg = 0,
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}, {
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.code = MEDIA_BUS_FMT_UYVY8_2X8,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.ispctl1_reg = 0x01,
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}, {
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.code = MEDIA_BUS_FMT_RGB565_2X8_BE,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.ispctl1_reg = 0x40,
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},
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};
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static const struct i2c_regval noon010_base_regs[] = {
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{ WIN_COLL_REG, 0x06 }, { HBLANKL_REG, 0x7C },
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/* Color corection and saturation */
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{ ISP_CTL_REG(0), 0x30 }, { ISP_CTL_REG(2), 0x30 },
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{ YOFS_REG, 0x80 }, { DARK_YOFS_REG, 0x04 },
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{ SAT_CTL_REG, 0x1F }, { BSAT_REG, 0x90 },
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{ CMC_CTL_REG, 0x0F }, { CMC_OFSGH_REG, 0x3C },
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{ CMC_OFSGL_REG, 0x2C }, { CMC_SIGN_REG, 0x3F },
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{ CMC_COEF_REG(0), 0x79 }, { CMC_OFS_REG(0), 0x00 },
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{ CMC_COEF_REG(1), 0x39 }, { CMC_OFS_REG(1), 0x00 },
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{ CMC_COEF_REG(2), 0x00 }, { CMC_OFS_REG(2), 0x00 },
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{ CMC_COEF_REG(3), 0x11 }, { CMC_OFS_REG(3), 0x8B },
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{ CMC_COEF_REG(4), 0x65 }, { CMC_OFS_REG(4), 0x07 },
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{ CMC_COEF_REG(5), 0x14 }, { CMC_OFS_REG(5), 0x04 },
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{ CMC_COEF_REG(6), 0x01 }, { CMC_OFS_REG(6), 0x9C },
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{ CMC_COEF_REG(7), 0x33 }, { CMC_OFS_REG(7), 0x89 },
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{ CMC_COEF_REG(8), 0x74 }, { CMC_OFS_REG(8), 0x25 },
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/* Automatic white balance */
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{ AWB_CTL_REG(0), 0x78 }, { AWB_CTL_REG(1), 0x2E },
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{ AWB_CTL_REG(2), 0x20 }, { AWB_CTL_REG(3), 0x85 },
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/* Auto exposure */
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{ AE_CTL_REG(0), 0xDC }, { AE_CTL_REG(1), 0x81 },
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{ AE_CTL_REG(2), 0x30 }, { AE_CTL_REG(3), 0xA5 },
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{ AE_CTL_REG(4), 0x40 }, { AE_CTL_REG(5), 0x51 },
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{ AE_CTL_REG(6), 0x33 }, { AE_CTL_REG(7), 0x7E },
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{ AE_CTL9_REG, 0x00 }, { AE_CTL10_REG, 0x02 },
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{ AE_YLVL_REG, 0x44 }, { AE_YTH_REG(0), 0x34 },
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{ AE_YTH_REG(1), 0x30 }, { AE_WGT_REG, 0xD5 },
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/* Lens shading compensation */
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{ LENS_CTRL_REG, 0x01 }, { LENS_XCEN_REG, 0x80 },
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{ LENS_YCEN_REG, 0x70 }, { LENS_RC_REG, 0x53 },
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{ LENS_GC_REG, 0x40 }, { LENS_BC_REG, 0x3E },
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{ REG_TERM, 0 },
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};
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static inline struct noon010_info *to_noon010(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct noon010_info, sd);
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}
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static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
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{
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return &container_of(ctrl->handler, struct noon010_info, hdl)->sd;
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}
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static inline int set_i2c_page(struct noon010_info *info,
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struct i2c_client *client, unsigned int reg)
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{
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u32 page = reg >> 8 & 0xFF;
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int ret = 0;
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if (info->i2c_reg_page != page && (reg & 0xFF) != 0x03) {
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ret = i2c_smbus_write_byte_data(client, PAGEMODE_REG, page);
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if (!ret)
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info->i2c_reg_page = page;
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}
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return ret;
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}
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static int cam_i2c_read(struct v4l2_subdev *sd, u32 reg_addr)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct noon010_info *info = to_noon010(sd);
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int ret = set_i2c_page(info, client, reg_addr);
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if (ret)
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return ret;
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return i2c_smbus_read_byte_data(client, reg_addr & 0xFF);
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}
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static int cam_i2c_write(struct v4l2_subdev *sd, u32 reg_addr, u32 val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct noon010_info *info = to_noon010(sd);
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int ret = set_i2c_page(info, client, reg_addr);
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if (ret)
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return ret;
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return i2c_smbus_write_byte_data(client, reg_addr & 0xFF, val);
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}
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static inline int noon010_bulk_write_reg(struct v4l2_subdev *sd,
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const struct i2c_regval *msg)
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{
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while (msg->addr != REG_TERM) {
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int ret = cam_i2c_write(sd, msg->addr, msg->val);
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if (ret)
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return ret;
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msg++;
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}
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return 0;
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}
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/* Device reset and sleep mode control */
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static int noon010_power_ctrl(struct v4l2_subdev *sd, bool reset, bool sleep)
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{
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struct noon010_info *info = to_noon010(sd);
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u8 reg = sleep ? 0xF1 : 0xF0;
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int ret = 0;
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if (reset) {
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ret = cam_i2c_write(sd, POWER_CTRL_REG, reg | 0x02);
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udelay(20);
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}
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if (!ret) {
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ret = cam_i2c_write(sd, POWER_CTRL_REG, reg);
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if (reset && !ret)
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info->i2c_reg_page = -1;
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}
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return ret;
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}
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/* Automatic white balance control */
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static int noon010_enable_autowhitebalance(struct v4l2_subdev *sd, int on)
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{
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int ret;
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ret = cam_i2c_write(sd, AWB_CTL_REG(1), on ? 0x2E : 0x2F);
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if (!ret)
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ret = cam_i2c_write(sd, AWB_CTL_REG(0), on ? 0xFB : 0x7B);
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return ret;
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}
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/* Called with struct noon010_info.lock mutex held */
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static int noon010_set_flip(struct v4l2_subdev *sd, int hflip, int vflip)
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{
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struct noon010_info *info = to_noon010(sd);
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int reg, ret;
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reg = cam_i2c_read(sd, VDO_CTL_REG(1));
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if (reg < 0)
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return reg;
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reg &= 0x7C;
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if (hflip)
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reg |= 0x01;
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if (vflip)
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reg |= 0x02;
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ret = cam_i2c_write(sd, VDO_CTL_REG(1), reg | 0x80);
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if (!ret) {
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info->hflip = hflip;
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info->vflip = vflip;
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}
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return ret;
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}
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/* Configure resolution and color format */
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static int noon010_set_params(struct v4l2_subdev *sd)
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{
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struct noon010_info *info = to_noon010(sd);
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int ret = cam_i2c_write(sd, VDO_CTL_REG(0),
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info->curr_win->vid_ctl1);
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if (ret)
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return ret;
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return cam_i2c_write(sd, ISP_CTL_REG(0),
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info->curr_fmt->ispctl1_reg);
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}
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/* Find nearest matching image pixel size. */
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static int noon010_try_frame_size(struct v4l2_mbus_framefmt *mf,
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const struct noon010_frmsize **size)
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{
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unsigned int min_err = ~0;
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int i = ARRAY_SIZE(noon010_sizes);
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const struct noon010_frmsize *fsize = &noon010_sizes[0],
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*match = NULL;
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while (i--) {
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int err = abs(fsize->width - mf->width)
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+ abs(fsize->height - mf->height);
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if (err < min_err) {
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min_err = err;
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match = fsize;
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}
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fsize++;
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}
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if (match) {
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mf->width = match->width;
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mf->height = match->height;
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if (size)
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*size = match;
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return 0;
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}
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return -EINVAL;
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}
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/* Called with info.lock mutex held */
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static int power_enable(struct noon010_info *info)
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{
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int ret;
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if (info->power) {
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v4l2_info(&info->sd, "%s: sensor is already on\n", __func__);
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return 0;
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}
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if (gpio_is_valid(info->gpio_nstby))
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gpio_set_value(info->gpio_nstby, 0);
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if (gpio_is_valid(info->gpio_nreset))
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gpio_set_value(info->gpio_nreset, 0);
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ret = regulator_bulk_enable(NOON010_NUM_SUPPLIES, info->supply);
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if (ret)
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return ret;
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if (gpio_is_valid(info->gpio_nreset)) {
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msleep(50);
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gpio_set_value(info->gpio_nreset, 1);
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}
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if (gpio_is_valid(info->gpio_nstby)) {
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udelay(1000);
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gpio_set_value(info->gpio_nstby, 1);
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}
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if (gpio_is_valid(info->gpio_nreset)) {
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udelay(1000);
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gpio_set_value(info->gpio_nreset, 0);
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msleep(100);
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gpio_set_value(info->gpio_nreset, 1);
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msleep(20);
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}
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info->power = 1;
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v4l2_dbg(1, debug, &info->sd, "%s: sensor is on\n", __func__);
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return 0;
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}
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/* Called with info.lock mutex held */
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static int power_disable(struct noon010_info *info)
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{
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int ret;
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if (!info->power) {
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v4l2_info(&info->sd, "%s: sensor is already off\n", __func__);
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return 0;
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}
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ret = regulator_bulk_disable(NOON010_NUM_SUPPLIES, info->supply);
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if (ret)
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return ret;
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if (gpio_is_valid(info->gpio_nstby))
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|
gpio_set_value(info->gpio_nstby, 0);
|
|
|
|
if (gpio_is_valid(info->gpio_nreset))
|
|
gpio_set_value(info->gpio_nreset, 0);
|
|
|
|
info->power = 0;
|
|
|
|
v4l2_dbg(1, debug, &info->sd, "%s: sensor is off\n", __func__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int noon010_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct v4l2_subdev *sd = to_sd(ctrl);
|
|
struct noon010_info *info = to_noon010(sd);
|
|
int ret = 0;
|
|
|
|
v4l2_dbg(1, debug, sd, "%s: ctrl_id: %d, value: %d\n",
|
|
__func__, ctrl->id, ctrl->val);
|
|
|
|
mutex_lock(&info->lock);
|
|
/*
|
|
* If the device is not powered up by the host driver do
|
|
* not apply any controls to H/W at this time. Instead
|
|
* the controls will be restored right after power-up.
|
|
*/
|
|
if (!info->power)
|
|
goto unlock;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_AUTO_WHITE_BALANCE:
|
|
ret = noon010_enable_autowhitebalance(sd, ctrl->val);
|
|
break;
|
|
case V4L2_CID_BLUE_BALANCE:
|
|
ret = cam_i2c_write(sd, MWB_BGAIN_REG, ctrl->val);
|
|
break;
|
|
case V4L2_CID_RED_BALANCE:
|
|
ret = cam_i2c_write(sd, MWB_RGAIN_REG, ctrl->val);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
unlock:
|
|
mutex_unlock(&info->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int noon010_enum_mbus_code(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_mbus_code_enum *code)
|
|
{
|
|
if (code->index >= ARRAY_SIZE(noon010_formats))
|
|
return -EINVAL;
|
|
|
|
code->code = noon010_formats[code->index].code;
|
|
return 0;
|
|
}
|
|
|
|
static int noon010_get_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct noon010_info *info = to_noon010(sd);
|
|
struct v4l2_mbus_framefmt *mf;
|
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
|
|
if (cfg) {
|
|
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
|
|
fmt->format = *mf;
|
|
}
|
|
return 0;
|
|
}
|
|
mf = &fmt->format;
|
|
|
|
mutex_lock(&info->lock);
|
|
mf->width = info->curr_win->width;
|
|
mf->height = info->curr_win->height;
|
|
mf->code = info->curr_fmt->code;
|
|
mf->colorspace = info->curr_fmt->colorspace;
|
|
mf->field = V4L2_FIELD_NONE;
|
|
|
|
mutex_unlock(&info->lock);
|
|
return 0;
|
|
}
|
|
|
|
/* Return nearest media bus frame format. */
|
|
static const struct noon010_format *noon010_try_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
int i = ARRAY_SIZE(noon010_formats);
|
|
|
|
while (--i)
|
|
if (mf->code == noon010_formats[i].code)
|
|
break;
|
|
mf->code = noon010_formats[i].code;
|
|
|
|
return &noon010_formats[i];
|
|
}
|
|
|
|
static int noon010_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct noon010_info *info = to_noon010(sd);
|
|
const struct noon010_frmsize *size = NULL;
|
|
const struct noon010_format *nf;
|
|
struct v4l2_mbus_framefmt *mf;
|
|
int ret = 0;
|
|
|
|
nf = noon010_try_fmt(sd, &fmt->format);
|
|
noon010_try_frame_size(&fmt->format, &size);
|
|
fmt->format.colorspace = V4L2_COLORSPACE_JPEG;
|
|
fmt->format.field = V4L2_FIELD_NONE;
|
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
|
|
if (cfg) {
|
|
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
|
|
*mf = fmt->format;
|
|
}
|
|
return 0;
|
|
}
|
|
mutex_lock(&info->lock);
|
|
if (!info->streaming) {
|
|
info->apply_new_cfg = 1;
|
|
info->curr_fmt = nf;
|
|
info->curr_win = size;
|
|
} else {
|
|
ret = -EBUSY;
|
|
}
|
|
mutex_unlock(&info->lock);
|
|
return ret;
|
|
}
|
|
|
|
/* Called with struct noon010_info.lock mutex held */
|
|
static int noon010_base_config(struct v4l2_subdev *sd)
|
|
{
|
|
int ret = noon010_bulk_write_reg(sd, noon010_base_regs);
|
|
if (!ret)
|
|
ret = noon010_set_params(sd);
|
|
if (!ret)
|
|
ret = noon010_set_flip(sd, 1, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int noon010_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct noon010_info *info = to_noon010(sd);
|
|
int ret;
|
|
|
|
mutex_lock(&info->lock);
|
|
if (on) {
|
|
ret = power_enable(info);
|
|
if (!ret)
|
|
ret = noon010_base_config(sd);
|
|
} else {
|
|
noon010_power_ctrl(sd, false, true);
|
|
ret = power_disable(info);
|
|
}
|
|
mutex_unlock(&info->lock);
|
|
|
|
/* Restore the controls state */
|
|
if (!ret && on)
|
|
ret = v4l2_ctrl_handler_setup(&info->hdl);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int noon010_s_stream(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct noon010_info *info = to_noon010(sd);
|
|
int ret = 0;
|
|
|
|
mutex_lock(&info->lock);
|
|
if (!info->streaming != !on) {
|
|
ret = noon010_power_ctrl(sd, false, !on);
|
|
if (!ret)
|
|
info->streaming = on;
|
|
}
|
|
if (!ret && on && info->apply_new_cfg) {
|
|
ret = noon010_set_params(sd);
|
|
if (!ret)
|
|
info->apply_new_cfg = 0;
|
|
}
|
|
mutex_unlock(&info->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int noon010_log_status(struct v4l2_subdev *sd)
|
|
{
|
|
struct noon010_info *info = to_noon010(sd);
|
|
|
|
v4l2_ctrl_handler_log_status(&info->hdl, sd->name);
|
|
return 0;
|
|
}
|
|
|
|
static int noon010_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
|
{
|
|
struct v4l2_mbus_framefmt *mf = v4l2_subdev_get_try_format(sd, fh->pad, 0);
|
|
|
|
mf->width = noon010_sizes[0].width;
|
|
mf->height = noon010_sizes[0].height;
|
|
mf->code = noon010_formats[0].code;
|
|
mf->colorspace = V4L2_COLORSPACE_JPEG;
|
|
mf->field = V4L2_FIELD_NONE;
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_subdev_internal_ops noon010_subdev_internal_ops = {
|
|
.open = noon010_open,
|
|
};
|
|
|
|
static const struct v4l2_ctrl_ops noon010_ctrl_ops = {
|
|
.s_ctrl = noon010_s_ctrl,
|
|
};
|
|
|
|
static const struct v4l2_subdev_core_ops noon010_core_ops = {
|
|
.s_power = noon010_s_power,
|
|
.log_status = noon010_log_status,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops noon010_pad_ops = {
|
|
.enum_mbus_code = noon010_enum_mbus_code,
|
|
.get_fmt = noon010_get_fmt,
|
|
.set_fmt = noon010_set_fmt,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops noon010_video_ops = {
|
|
.s_stream = noon010_s_stream,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops noon010_ops = {
|
|
.core = &noon010_core_ops,
|
|
.pad = &noon010_pad_ops,
|
|
.video = &noon010_video_ops,
|
|
};
|
|
|
|
/* Return 0 if NOON010PC30L sensor type was detected or -ENODEV otherwise. */
|
|
static int noon010_detect(struct i2c_client *client, struct noon010_info *info)
|
|
{
|
|
int ret;
|
|
|
|
ret = power_enable(info);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i2c_smbus_read_byte_data(client, DEVICE_ID_REG);
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "I2C read failed: 0x%X\n", ret);
|
|
|
|
power_disable(info);
|
|
|
|
return ret == NOON010PC30_ID ? 0 : -ENODEV;
|
|
}
|
|
|
|
static int noon010_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct noon010_info *info;
|
|
struct v4l2_subdev *sd;
|
|
const struct noon010pc30_platform_data *pdata
|
|
= client->dev.platform_data;
|
|
int ret;
|
|
int i;
|
|
|
|
if (!pdata) {
|
|
dev_err(&client->dev, "No platform data!\n");
|
|
return -EIO;
|
|
}
|
|
|
|
info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
|
|
if (!info)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&info->lock);
|
|
sd = &info->sd;
|
|
v4l2_i2c_subdev_init(sd, client, &noon010_ops);
|
|
/* Static name; NEVER use in new drivers! */
|
|
strscpy(sd->name, MODULE_NAME, sizeof(sd->name));
|
|
|
|
sd->internal_ops = &noon010_subdev_internal_ops;
|
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
|
|
|
v4l2_ctrl_handler_init(&info->hdl, 3);
|
|
|
|
v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops,
|
|
V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
|
|
v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops,
|
|
V4L2_CID_RED_BALANCE, 0, 127, 1, 64);
|
|
v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops,
|
|
V4L2_CID_BLUE_BALANCE, 0, 127, 1, 64);
|
|
|
|
sd->ctrl_handler = &info->hdl;
|
|
|
|
ret = info->hdl.error;
|
|
if (ret)
|
|
goto np_err;
|
|
|
|
info->i2c_reg_page = -1;
|
|
info->gpio_nreset = -EINVAL;
|
|
info->gpio_nstby = -EINVAL;
|
|
info->curr_fmt = &noon010_formats[0];
|
|
info->curr_win = &noon010_sizes[0];
|
|
|
|
if (gpio_is_valid(pdata->gpio_nreset)) {
|
|
ret = devm_gpio_request_one(&client->dev, pdata->gpio_nreset,
|
|
GPIOF_OUT_INIT_LOW,
|
|
"NOON010PC30 NRST");
|
|
if (ret) {
|
|
dev_err(&client->dev, "GPIO request error: %d\n", ret);
|
|
goto np_err;
|
|
}
|
|
info->gpio_nreset = pdata->gpio_nreset;
|
|
gpio_export(info->gpio_nreset, 0);
|
|
}
|
|
|
|
if (gpio_is_valid(pdata->gpio_nstby)) {
|
|
ret = devm_gpio_request_one(&client->dev, pdata->gpio_nstby,
|
|
GPIOF_OUT_INIT_LOW,
|
|
"NOON010PC30 NSTBY");
|
|
if (ret) {
|
|
dev_err(&client->dev, "GPIO request error: %d\n", ret);
|
|
goto np_err;
|
|
}
|
|
info->gpio_nstby = pdata->gpio_nstby;
|
|
gpio_export(info->gpio_nstby, 0);
|
|
}
|
|
|
|
for (i = 0; i < NOON010_NUM_SUPPLIES; i++)
|
|
info->supply[i].supply = noon010_supply_name[i];
|
|
|
|
ret = devm_regulator_bulk_get(&client->dev, NOON010_NUM_SUPPLIES,
|
|
info->supply);
|
|
if (ret)
|
|
goto np_err;
|
|
|
|
info->pad.flags = MEDIA_PAD_FL_SOURCE;
|
|
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
|
|
ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
|
|
if (ret < 0)
|
|
goto np_err;
|
|
|
|
ret = noon010_detect(client, info);
|
|
if (!ret)
|
|
return 0;
|
|
|
|
np_err:
|
|
v4l2_ctrl_handler_free(&info->hdl);
|
|
v4l2_device_unregister_subdev(sd);
|
|
return ret;
|
|
}
|
|
|
|
static int noon010_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
struct noon010_info *info = to_noon010(sd);
|
|
|
|
v4l2_device_unregister_subdev(sd);
|
|
v4l2_ctrl_handler_free(&info->hdl);
|
|
media_entity_cleanup(&sd->entity);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id noon010_id[] = {
|
|
{ MODULE_NAME, 0 },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, noon010_id);
|
|
|
|
|
|
static struct i2c_driver noon010_i2c_driver = {
|
|
.driver = {
|
|
.name = MODULE_NAME
|
|
},
|
|
.probe = noon010_probe,
|
|
.remove = noon010_remove,
|
|
.id_table = noon010_id,
|
|
};
|
|
|
|
module_i2c_driver(noon010_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("Siliconfile NOON010PC30 camera driver");
|
|
MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
|
|
MODULE_LICENSE("GPL");
|