// SPDX-License-Identifier: GPL-2.0 /* * Support for mt9m114 Camera Sensor. * * Copyright (c) 2010 Intel Corporation. All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * */ #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/kmod.h> #include <linux/device.h> #include <linux/fs.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/acpi.h> #include "../include/linux/atomisp_gmin_platform.h" #include <media/v4l2-device.h> #include "mt9m114.h" #define to_mt9m114_sensor(s) … /* * TODO: use debug parameter to actually define when debug messages should * be printed. */ static int debug; static int aaalock; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value); static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value); static int mt9m114_wait_state(struct i2c_client *client, int timeout); static int mt9m114_read_reg(struct i2c_client *client, u16 data_length, u32 reg, u32 *val) { … } static int mt9m114_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u32 val) { … } /** * misensor_rmw_reg - Read/Modify/Write a value to a register in the sensor * device * @client: i2c driver client structure * @data_length: 8/16/32-bits length * @reg: register address * @mask: masked out bits * @set: bits set * * Read/modify/write a value to a register in the sensor device. * Returns zero if successful, or non-zero otherwise. */ static int misensor_rmw_reg(struct i2c_client *client, u16 data_length, u16 reg, u32 mask, u32 set) { … } static int __mt9m114_flush_reg_array(struct i2c_client *client, struct mt9m114_write_ctrl *ctrl) { … } static int __mt9m114_buf_reg_array(struct i2c_client *client, struct mt9m114_write_ctrl *ctrl, const struct misensor_reg *next) { … } static int __mt9m114_write_reg_is_consecutive(struct i2c_client *client, struct mt9m114_write_ctrl *ctrl, const struct misensor_reg *next) { … } /* * mt9m114_write_reg_array - Initializes a list of mt9m114 registers * @client: i2c driver client structure * @reglist: list of registers to be written * @poll: completion polling requirement * This function initializes a list of registers. When consecutive addresses * are found in a row on the list, this function creates a buffer and sends * consecutive data in a single i2c_transfer(). * * __mt9m114_flush_reg_array, __mt9m114_buf_reg_array() and * __mt9m114_write_reg_is_consecutive() are internal functions to * mt9m114_write_reg_array() and should be not used anywhere else. * */ static int mt9m114_write_reg_array(struct i2c_client *client, const struct misensor_reg *reglist, int poll) { … } static int mt9m114_wait_state(struct i2c_client *client, int timeout) { … } static int mt9m114_set_suspend(struct v4l2_subdev *sd) { … } static int mt9m114_init_common(struct v4l2_subdev *sd) { … } static int power_ctrl(struct v4l2_subdev *sd, bool flag) { … } static int gpio_ctrl(struct v4l2_subdev *sd, bool flag) { … } static int power_up(struct v4l2_subdev *sd) { … } static int power_down(struct v4l2_subdev *sd) { … } static int mt9m114_s_power(struct v4l2_subdev *sd, int power) { … } static int mt9m114_res2size(struct v4l2_subdev *sd, int *h_size, int *v_size) { … } static int mt9m114_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int mt9m114_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } /* Horizontal flip the image. */ static int mt9m114_g_hflip(struct v4l2_subdev *sd, s32 *val) { … } static int mt9m114_g_vflip(struct v4l2_subdev *sd, s32 *val) { … } static long mt9m114_s_exposure(struct v4l2_subdev *sd, struct atomisp_exposure *exposure) { … } static long mt9m114_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { … } /* * This returns the exposure time being used. This should only be used * for filling in EXIF data, not for actual image processing. */ static int mt9m114_g_exposure(struct v4l2_subdev *sd, s32 *value) { … } /* * This function will return the sensor supported max exposure zone number. * the sensor which supports max exposure zone number is 1. */ static int mt9m114_g_exposure_zone_num(struct v4l2_subdev *sd, s32 *val) { … } /* * set exposure metering, average/center_weighted/spot/matrix. */ static int mt9m114_s_exposure_metering(struct v4l2_subdev *sd, s32 val) { … } /* * This function is for touch exposure feature. */ static int mt9m114_s_exposure_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static int mt9m114_s_ev(struct v4l2_subdev *sd, s32 val) { … } static int mt9m114_g_ev(struct v4l2_subdev *sd, s32 *val) { … } /* * Fake interface * mt9m114 now can not support 3a_lock */ static int mt9m114_s_3a_lock(struct v4l2_subdev *sd, s32 val) { … } static int mt9m114_g_3a_lock(struct v4l2_subdev *sd, s32 *val) { … } static int mt9m114_s_ctrl(struct v4l2_ctrl *ctrl) { … } static int mt9m114_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops ctrl_ops = …; static struct v4l2_ctrl_config mt9m114_controls[] = …; static int mt9m114_detect(struct mt9m114_device *dev, struct i2c_client *client) { … } static int mt9m114_s_config(struct v4l2_subdev *sd, int irq, void *platform_data) { … } /* Horizontal flip the image. */ static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value) { … } /* Vertically flip the image */ static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value) { … } static int mt9m114_get_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *interval) { … } static int mt9m114_s_stream(struct v4l2_subdev *sd, int enable) { … } static int mt9m114_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int mt9m114_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static int mt9m114_g_skip_frames(struct v4l2_subdev *sd, u32 *frames) { … } static const struct v4l2_subdev_video_ops mt9m114_video_ops = …; static const struct v4l2_subdev_sensor_ops mt9m114_sensor_ops = …; static const struct v4l2_subdev_core_ops mt9m114_core_ops = …; /* REVISIT: Do we need pad operations? */ static const struct v4l2_subdev_pad_ops mt9m114_pad_ops = …; static const struct v4l2_subdev_ops mt9m114_ops = …; static void mt9m114_remove(struct i2c_client *client) { … } static int mt9m114_probe(struct i2c_client *client) { … } static const struct acpi_device_id mt9m114_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, mt9m114_acpi_match); static struct i2c_driver mt9m114_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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