// SPDX-License-Identifier: GPL-2.0-only /* * V4L2 subdevice driver for OmniVision OV6650 Camera Sensor * * Copyright (C) 2010 Janusz Krzysztofik <[email protected]> * * Based on OmniVision OV96xx Camera Driver * Copyright (C) 2009 Marek Vasut <[email protected]> * * Based on ov772x camera driver: * Copyright (C) 2008 Renesas Solutions Corp. * Kuninori Morimoto <[email protected]> * * Based on ov7670 and soc_camera_platform driver, * Copyright 2006-7 Jonathan Corbet <[email protected]> * Copyright (C) 2008 Magnus Damm * Copyright (C) 2008, Guennadi Liakhovetski <[email protected]> * * Hardware specific bits initially based on former work by Matt Callow * drivers/media/video/omap/sensor_ov6650.c * Copyright (C) 2006 Matt Callow */ #include <linux/bitops.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/v4l2-mediabus.h> #include <linux/module.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> /* Register definitions */ #define REG_GAIN … #define REG_BLUE … #define REG_RED … #define REG_SAT … #define REG_HUE … #define REG_BRT … #define REG_PIDH … #define REG_PIDL … #define REG_AECH … #define REG_CLKRC … /* [7:6] Input system clock (MHz)*/ /* 00=8, 01=12, 10=16, 11=24 */ /* [5:0]: Internal Clock Pre-Scaler */ #define REG_COMA … #define REG_COMB … #define REG_COMC … #define REG_COMD … #define REG_COML … #define REG_HSTRT … #define REG_HSTOP … #define REG_VSTRT … #define REG_VSTOP … #define REG_PSHFT … #define REG_MIDH … #define REG_MIDL … #define REG_HSYNS … #define REG_HSYNE … #define REG_COME … #define REG_YOFF … #define REG_UOFF … #define REG_VOFF … #define REG_AEW … #define REG_AEB … #define REG_COMF … #define REG_COMG … #define REG_COMH … #define REG_COMI … #define REG_FRARL … #define REG_COMJ … #define REG_COMK … #define REG_AVGY … #define REG_REF0 … #define REG_REF1 … #define REG_REF2 … #define REG_FRAJH … #define REG_FRAJL … #define REG_FACT … #define REG_L1AEC … #define REG_AVGU … #define REG_AVGV … #define REG_SPCB … #define REG_SPCC … #define REG_GAM1 … #define REG_GAM2 … #define REG_GAM3 … #define REG_SPCD … #define REG_SPCE … #define REG_ADCL … #define REG_RMCO … #define REG_GMCO … #define REG_BMCO … /* Register bits, values, etc. */ #define OV6650_PIDH … #define OV6650_PIDL … #define OV6650_MIDH … #define OV6650_MIDL … #define DEF_GAIN … #define DEF_BLUE … #define DEF_RED … #define SAT_SHIFT … #define SAT_MASK … #define SET_SAT(x) … #define HUE_EN … #define HUE_MASK … #define DEF_HUE … #define SET_HUE(x) … #define DEF_AECH … #define CLKRC_8MHz … #define CLKRC_12MHz … #define CLKRC_16MHz … #define CLKRC_24MHz … #define CLKRC_DIV_MASK … #define GET_CLKRC_DIV(x) … #define DEF_CLKRC … #define COMA_RESET … #define COMA_QCIF … #define COMA_RAW_RGB … #define COMA_RGB … #define COMA_BW … #define COMA_WORD_SWAP … #define COMA_BYTE_SWAP … #define DEF_COMA … #define COMB_FLIP_V … #define COMB_FLIP_H … #define COMB_BAND_FILTER … #define COMB_AWB … #define COMB_AGC … #define COMB_AEC … #define DEF_COMB … #define COML_ONE_CHANNEL … #define DEF_HSTRT … #define DEF_HSTOP … #define DEF_VSTRT … #define DEF_VSTOP … #define COMF_HREF_LOW … #define COMJ_PCLK_RISING … #define COMJ_VSYNC_HIGH … /* supported resolutions */ #define W_QCIF … #define W_CIF … #define H_QCIF … #define H_CIF … #define FRAME_RATE_MAX … struct ov6650_reg { … }; struct ov6650 { … }; struct ov6650_xclk { … }; static const struct ov6650_xclk ov6650_xclk[] = …; static u32 ov6650_codes[] = …; static const struct v4l2_mbus_framefmt ov6650_def_fmt = …; /* read a register */ static int ov6650_reg_read(struct i2c_client *client, u8 reg, u8 *val) { … } /* write a register */ static int ov6650_reg_write(struct i2c_client *client, u8 reg, u8 val) { … } /* Read a register, alter its bits, write it back */ static int ov6650_reg_rmw(struct i2c_client *client, u8 reg, u8 set, u8 mask) { … } static struct ov6650 *to_ov6650(const struct i2c_client *client) { … } /* Start/Stop streaming from the device */ static int ov6650_s_stream(struct v4l2_subdev *sd, int enable) { … } /* Get status of additional camera capabilities */ static int ov6550_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { … } /* Set status of additional camera capabilities */ static int ov6550_s_ctrl(struct v4l2_ctrl *ctrl) { … } #ifdef CONFIG_VIDEO_ADV_DEBUG static int ov6650_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { … } static int ov6650_set_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { … } #endif static int ov6650_s_power(struct v4l2_subdev *sd, int on) { … } static int ov6650_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static bool is_unscaled_ok(int width, int height, struct v4l2_rect *rect) { … } static void ov6650_bind_align_crop_rectangle(struct v4l2_rect *rect) { … } static int ov6650_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static int ov6650_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } #define to_clkrc(div) … /* set the format we will capture in */ static int ov6650_s_fmt(struct v4l2_subdev *sd, u32 code, bool half_scale) { … } static int ov6650_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int ov6650_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int ov6650_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *fie) { … } static int ov6650_get_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *ival) { … } static int ov6650_set_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *ival) { … } /* Soft reset the camera. This has nothing to do with the RESET pin! */ static int ov6650_reset(struct i2c_client *client) { … } /* program default register values */ static int ov6650_prog_dflt(struct i2c_client *client, u8 clkrc) { … } static int ov6650_video_probe(struct v4l2_subdev *sd) { … } static const struct v4l2_ctrl_ops ov6550_ctrl_ops = …; static const struct v4l2_subdev_core_ops ov6650_core_ops = …; /* Request bus settings on camera side */ static int ov6650_get_mbus_config(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_config *cfg) { … } static const struct v4l2_subdev_video_ops ov6650_video_ops = …; static const struct v4l2_subdev_pad_ops ov6650_pad_ops = …; static const struct v4l2_subdev_ops ov6650_subdev_ops = …; static const struct v4l2_subdev_internal_ops ov6650_internal_ops = …; /* * i2c_driver function */ static int ov6650_probe(struct i2c_client *client) { … } static void ov6650_remove(struct i2c_client *client) { … } static const struct i2c_device_id ov6650_id[] = …; MODULE_DEVICE_TABLE(i2c, ov6650_id); static struct i2c_driver ov6650_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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