// SPDX-License-Identifier: GPL-2.0
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/*
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* Support for mt9m114 Camera Sensor.
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*
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* Copyright (c) 2010 Intel Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kmod.h>
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#include <linux/device.h>
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#include <linux/fs.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/acpi.h>
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#include "../include/linux/atomisp_gmin_platform.h"
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#include <media/v4l2-device.h>
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#include "mt9m114.h"
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#define to_mt9m114_sensor(sd) container_of(sd, struct mt9m114_device, sd)
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|
/*
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* TODO: use debug parameter to actually define when debug messages should
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* be printed.
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*/
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static int debug;
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static int aaalock;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Debug level (0-1)");
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static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value);
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static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value);
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static int mt9m114_wait_state(struct i2c_client *client, int timeout);
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static int
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mt9m114_read_reg(struct i2c_client *client, u16 data_length, u32 reg, u32 *val)
|
{
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int err;
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struct i2c_msg msg[2];
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unsigned char data[4];
|
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if (!client->adapter) {
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v4l2_err(client, "%s error, no client->adapter\n", __func__);
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return -ENODEV;
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}
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if (data_length != MISENSOR_8BIT && data_length != MISENSOR_16BIT
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&& data_length != MISENSOR_32BIT) {
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v4l2_err(client, "%s error, invalid data length\n", __func__);
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return -EINVAL;
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}
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|
msg[0].addr = client->addr;
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msg[0].flags = 0;
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msg[0].len = MSG_LEN_OFFSET;
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msg[0].buf = data;
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/* high byte goes out first */
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data[0] = (u16)(reg >> 8);
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data[1] = (u16)(reg & 0xff);
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msg[1].addr = client->addr;
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msg[1].len = data_length;
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msg[1].flags = I2C_M_RD;
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msg[1].buf = data;
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err = i2c_transfer(client->adapter, msg, 2);
|
|
if (err >= 0) {
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*val = 0;
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/* high byte comes first */
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if (data_length == MISENSOR_8BIT)
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*val = data[0];
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else if (data_length == MISENSOR_16BIT)
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*val = data[1] + (data[0] << 8);
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else
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*val = data[3] + (data[2] << 8) +
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(data[1] << 16) + (data[0] << 24);
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return 0;
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}
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dev_err(&client->dev, "read from offset 0x%x error %d", reg, err);
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return err;
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}
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static int
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mt9m114_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u32 val)
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{
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int num_msg;
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struct i2c_msg msg;
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unsigned char data[6] = {0};
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__be16 *wreg;
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int retry = 0;
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if (!client->adapter) {
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v4l2_err(client, "%s error, no client->adapter\n", __func__);
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return -ENODEV;
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}
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if (data_length != MISENSOR_8BIT && data_length != MISENSOR_16BIT
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&& data_length != MISENSOR_32BIT) {
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v4l2_err(client, "%s error, invalid data_length\n", __func__);
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return -EINVAL;
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}
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memset(&msg, 0, sizeof(msg));
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|
again:
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msg.addr = client->addr;
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msg.flags = 0;
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msg.len = 2 + data_length;
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msg.buf = data;
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/* high byte goes out first */
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wreg = (void *)data;
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*wreg = cpu_to_be16(reg);
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if (data_length == MISENSOR_8BIT) {
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data[2] = (u8)(val);
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} else if (data_length == MISENSOR_16BIT) {
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u16 *wdata = (void *)&data[2];
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*wdata = be16_to_cpu(*(__be16 *)&data[2]);
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} else {
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/* MISENSOR_32BIT */
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u32 *wdata = (void *)&data[2];
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|
*wdata = be32_to_cpu(*(__be32 *)&data[2]);
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}
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num_msg = i2c_transfer(client->adapter, &msg, 1);
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|
/*
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* HACK: Need some delay here for Rev 2 sensors otherwise some
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* registers do not seem to load correctly.
|
*/
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mdelay(1);
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if (num_msg >= 0)
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return 0;
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dev_err(&client->dev, "write error: wrote 0x%x to offset 0x%x error %d",
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val, reg, num_msg);
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if (retry <= I2C_RETRY_COUNT) {
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dev_dbg(&client->dev, "retrying... %d", retry);
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retry++;
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msleep(20);
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goto again;
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}
|
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return num_msg;
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}
|
|
/**
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* misensor_rmw_reg - Read/Modify/Write a value to a register in the sensor
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* device
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* @client: i2c driver client structure
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* @data_length: 8/16/32-bits length
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* @reg: register address
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* @mask: masked out bits
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* @set: bits set
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*
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* Read/modify/write a value to a register in the sensor device.
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* Returns zero if successful, or non-zero otherwise.
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*/
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static int
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misensor_rmw_reg(struct i2c_client *client, u16 data_length, u16 reg,
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u32 mask, u32 set)
|
{
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int err;
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u32 val;
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/* Exit when no mask */
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if (mask == 0)
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return 0;
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/* @mask must not exceed data length */
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switch (data_length) {
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case MISENSOR_8BIT:
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if (mask & ~0xff)
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return -EINVAL;
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break;
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case MISENSOR_16BIT:
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if (mask & ~0xffff)
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return -EINVAL;
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break;
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case MISENSOR_32BIT:
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break;
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default:
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/* Wrong @data_length */
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return -EINVAL;
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}
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err = mt9m114_read_reg(client, data_length, reg, &val);
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if (err) {
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v4l2_err(client, "%s error exit, read failed\n", __func__);
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return -EINVAL;
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}
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val &= ~mask;
|
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/*
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* Perform the OR function if the @set exists.
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* Shift @set value to target bit location. @set should set only
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* bits included in @mask.
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*
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* REVISIT: This function expects @set to be non-shifted. Its shift
|
* value is then defined to be equal to mask's LSB position.
|
* How about to inform values in their right offset position and avoid
|
* this unneeded shift operation?
|
*/
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set <<= ffs(mask) - 1;
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val |= set & mask;
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err = mt9m114_write_reg(client, data_length, reg, val);
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if (err) {
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v4l2_err(client, "%s error exit, write failed\n", __func__);
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return -EINVAL;
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}
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return 0;
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}
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static int __mt9m114_flush_reg_array(struct i2c_client *client,
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struct mt9m114_write_ctrl *ctrl)
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{
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struct i2c_msg msg;
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const int num_msg = 1;
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int ret;
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int retry = 0;
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__be16 *data16 = (void *)&ctrl->buffer.addr;
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|
if (ctrl->index == 0)
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return 0;
|
|
again:
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msg.addr = client->addr;
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msg.flags = 0;
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msg.len = 2 + ctrl->index;
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*data16 = cpu_to_be16(ctrl->buffer.addr);
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msg.buf = (u8 *)&ctrl->buffer;
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ret = i2c_transfer(client->adapter, &msg, num_msg);
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if (ret != num_msg) {
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if (++retry <= I2C_RETRY_COUNT) {
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dev_dbg(&client->dev, "retrying... %d\n", retry);
|
msleep(20);
|
goto again;
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}
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dev_err(&client->dev, "%s: i2c transfer error\n", __func__);
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return -EIO;
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}
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ctrl->index = 0;
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/*
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* REVISIT: Previously we had a delay after writing data to sensor.
|
* But it was removed as our tests have shown it is not necessary
|
* anymore.
|
*/
|
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return 0;
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}
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static int __mt9m114_buf_reg_array(struct i2c_client *client,
|
struct mt9m114_write_ctrl *ctrl,
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const struct misensor_reg *next)
|
{
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__be16 *data16;
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__be32 *data32;
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int err;
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/* Insufficient buffer? Let's flush and get more free space. */
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if (ctrl->index + next->length >= MT9M114_MAX_WRITE_BUF_SIZE) {
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err = __mt9m114_flush_reg_array(client, ctrl);
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if (err)
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return err;
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}
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switch (next->length) {
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case MISENSOR_8BIT:
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ctrl->buffer.data[ctrl->index] = (u8)next->val;
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break;
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case MISENSOR_16BIT:
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data16 = (__be16 *)&ctrl->buffer.data[ctrl->index];
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*data16 = cpu_to_be16((u16)next->val);
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break;
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case MISENSOR_32BIT:
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data32 = (__be32 *)&ctrl->buffer.data[ctrl->index];
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*data32 = cpu_to_be32(next->val);
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break;
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default:
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return -EINVAL;
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}
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/* When first item is added, we need to store its starting address */
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if (ctrl->index == 0)
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ctrl->buffer.addr = next->reg;
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ctrl->index += next->length;
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|
return 0;
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}
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static int
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__mt9m114_write_reg_is_consecutive(struct i2c_client *client,
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struct mt9m114_write_ctrl *ctrl,
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const struct misensor_reg *next)
|
{
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if (ctrl->index == 0)
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return 1;
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return ctrl->buffer.addr + ctrl->index == next->reg;
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}
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/*
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* mt9m114_write_reg_array - Initializes a list of mt9m114 registers
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* @client: i2c driver client structure
|
* @reglist: list of registers to be written
|
* @poll: completion polling requirement
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* 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)
|
{
|
const struct misensor_reg *next = reglist;
|
struct mt9m114_write_ctrl ctrl;
|
int err;
|
|
if (poll == PRE_POLLING) {
|
err = mt9m114_wait_state(client, MT9M114_WAIT_STAT_TIMEOUT);
|
if (err)
|
return err;
|
}
|
|
ctrl.index = 0;
|
for (; next->length != MISENSOR_TOK_TERM; next++) {
|
switch (next->length & MISENSOR_TOK_MASK) {
|
case MISENSOR_TOK_DELAY:
|
err = __mt9m114_flush_reg_array(client, &ctrl);
|
if (err)
|
return err;
|
msleep(next->val);
|
break;
|
case MISENSOR_TOK_RMW:
|
err = __mt9m114_flush_reg_array(client, &ctrl);
|
err |= misensor_rmw_reg(client,
|
next->length &
|
~MISENSOR_TOK_RMW,
|
next->reg, next->val,
|
next->val2);
|
if (err) {
|
dev_err(&client->dev, "%s read err. aborted\n",
|
__func__);
|
return -EINVAL;
|
}
|
break;
|
default:
|
/*
|
* If next address is not consecutive, data needs to be
|
* flushed before proceed.
|
*/
|
if (!__mt9m114_write_reg_is_consecutive(client, &ctrl,
|
next)) {
|
err = __mt9m114_flush_reg_array(client, &ctrl);
|
if (err)
|
return err;
|
}
|
err = __mt9m114_buf_reg_array(client, &ctrl, next);
|
if (err) {
|
v4l2_err(client, "%s: write error, aborted\n",
|
__func__);
|
return err;
|
}
|
break;
|
}
|
}
|
|
err = __mt9m114_flush_reg_array(client, &ctrl);
|
if (err)
|
return err;
|
|
if (poll == POST_POLLING)
|
return mt9m114_wait_state(client, MT9M114_WAIT_STAT_TIMEOUT);
|
|
return 0;
|
}
|
|
static int mt9m114_wait_state(struct i2c_client *client, int timeout)
|
{
|
int ret;
|
unsigned int val;
|
|
while (timeout-- > 0) {
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT, 0x0080, &val);
|
if (ret)
|
return ret;
|
if ((val & 0x2) == 0)
|
return 0;
|
msleep(20);
|
}
|
|
return -EINVAL;
|
}
|
|
static int mt9m114_set_suspend(struct v4l2_subdev *sd)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
return mt9m114_write_reg_array(client,
|
mt9m114_standby_reg, POST_POLLING);
|
}
|
|
static int mt9m114_init_common(struct v4l2_subdev *sd)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
return mt9m114_write_reg_array(client, mt9m114_common, PRE_POLLING);
|
}
|
|
static int power_ctrl(struct v4l2_subdev *sd, bool flag)
|
{
|
int ret;
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
|
if (!dev || !dev->platform_data)
|
return -ENODEV;
|
|
if (flag) {
|
ret = dev->platform_data->v2p8_ctrl(sd, 1);
|
if (ret == 0) {
|
ret = dev->platform_data->v1p8_ctrl(sd, 1);
|
if (ret)
|
ret = dev->platform_data->v2p8_ctrl(sd, 0);
|
}
|
} else {
|
ret = dev->platform_data->v2p8_ctrl(sd, 0);
|
ret = dev->platform_data->v1p8_ctrl(sd, 0);
|
}
|
return ret;
|
}
|
|
static int gpio_ctrl(struct v4l2_subdev *sd, bool flag)
|
{
|
int ret;
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
|
if (!dev || !dev->platform_data)
|
return -ENODEV;
|
|
/* Note: current modules wire only one GPIO signal (RESET#),
|
* but the schematic wires up two to the connector. BIOS
|
* versions have been unfortunately inconsistent with which
|
* ACPI index RESET# is on, so hit both */
|
|
if (flag) {
|
ret = dev->platform_data->gpio0_ctrl(sd, 0);
|
ret = dev->platform_data->gpio1_ctrl(sd, 0);
|
msleep(60);
|
ret |= dev->platform_data->gpio0_ctrl(sd, 1);
|
ret |= dev->platform_data->gpio1_ctrl(sd, 1);
|
} else {
|
ret = dev->platform_data->gpio0_ctrl(sd, 0);
|
ret = dev->platform_data->gpio1_ctrl(sd, 0);
|
}
|
return ret;
|
}
|
|
static int power_up(struct v4l2_subdev *sd)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
int ret;
|
|
if (!dev->platform_data) {
|
dev_err(&client->dev, "no camera_sensor_platform_data");
|
return -ENODEV;
|
}
|
|
/* power control */
|
ret = power_ctrl(sd, 1);
|
if (ret)
|
goto fail_power;
|
|
/* flis clock control */
|
ret = dev->platform_data->flisclk_ctrl(sd, 1);
|
if (ret)
|
goto fail_clk;
|
|
/* gpio ctrl */
|
ret = gpio_ctrl(sd, 1);
|
if (ret)
|
dev_err(&client->dev, "gpio failed 1\n");
|
/*
|
* according to DS, 44ms is needed between power up and first i2c
|
* commend
|
*/
|
msleep(50);
|
|
return 0;
|
|
fail_clk:
|
dev->platform_data->flisclk_ctrl(sd, 0);
|
fail_power:
|
power_ctrl(sd, 0);
|
dev_err(&client->dev, "sensor power-up failed\n");
|
|
return ret;
|
}
|
|
static int power_down(struct v4l2_subdev *sd)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
int ret;
|
|
if (!dev->platform_data) {
|
dev_err(&client->dev, "no camera_sensor_platform_data");
|
return -ENODEV;
|
}
|
|
ret = dev->platform_data->flisclk_ctrl(sd, 0);
|
if (ret)
|
dev_err(&client->dev, "flisclk failed\n");
|
|
/* gpio ctrl */
|
ret = gpio_ctrl(sd, 0);
|
if (ret)
|
dev_err(&client->dev, "gpio failed 1\n");
|
|
/* power control */
|
ret = power_ctrl(sd, 0);
|
if (ret)
|
dev_err(&client->dev, "vprog failed.\n");
|
|
/*according to DS, 20ms is needed after power down*/
|
msleep(20);
|
|
return ret;
|
}
|
|
static int mt9m114_s_power(struct v4l2_subdev *sd, int power)
|
{
|
if (power == 0)
|
return power_down(sd);
|
else {
|
if (power_up(sd))
|
return -EINVAL;
|
|
return mt9m114_init_common(sd);
|
}
|
}
|
|
/*
|
* distance - calculate the distance
|
* @res: resolution
|
* @w: width
|
* @h: height
|
*
|
* Get the gap between resolution and w/h.
|
* res->width/height smaller than w/h wouldn't be considered.
|
* Returns the value of gap or -1 if fail.
|
*/
|
#define LARGEST_ALLOWED_RATIO_MISMATCH 600
|
static int distance(struct mt9m114_res_struct const *res, u32 w, u32 h)
|
{
|
unsigned int w_ratio;
|
unsigned int h_ratio;
|
int match;
|
|
if (w == 0)
|
return -1;
|
w_ratio = (res->width << 13) / w;
|
if (h == 0)
|
return -1;
|
h_ratio = (res->height << 13) / h;
|
if (h_ratio == 0)
|
return -1;
|
match = abs(((w_ratio << 13) / h_ratio) - 8192);
|
|
if ((w_ratio < 8192) || (h_ratio < 8192) ||
|
(match > LARGEST_ALLOWED_RATIO_MISMATCH))
|
return -1;
|
|
return w_ratio + h_ratio;
|
}
|
|
/* Return the nearest higher resolution index */
|
static int nearest_resolution_index(int w, int h)
|
{
|
int i;
|
int idx = -1;
|
int dist;
|
int min_dist = INT_MAX;
|
const struct mt9m114_res_struct *tmp_res = NULL;
|
|
for (i = 0; i < ARRAY_SIZE(mt9m114_res); i++) {
|
tmp_res = &mt9m114_res[i];
|
dist = distance(tmp_res, w, h);
|
if (dist == -1)
|
continue;
|
if (dist < min_dist) {
|
min_dist = dist;
|
idx = i;
|
}
|
}
|
|
return idx;
|
}
|
|
static int mt9m114_try_res(u32 *w, u32 *h)
|
{
|
int idx = 0;
|
|
if ((*w > MT9M114_RES_960P_SIZE_H)
|
|| (*h > MT9M114_RES_960P_SIZE_V)) {
|
*w = MT9M114_RES_960P_SIZE_H;
|
*h = MT9M114_RES_960P_SIZE_V;
|
} else {
|
idx = nearest_resolution_index(*w, *h);
|
|
/*
|
* nearest_resolution_index() doesn't return smaller
|
* resolutions. If it fails, it means the requested
|
* resolution is higher than wecan support. Fallback
|
* to highest possible resolution in this case.
|
*/
|
if (idx == -1)
|
idx = ARRAY_SIZE(mt9m114_res) - 1;
|
|
*w = mt9m114_res[idx].width;
|
*h = mt9m114_res[idx].height;
|
}
|
|
return 0;
|
}
|
|
static struct mt9m114_res_struct *mt9m114_to_res(u32 w, u32 h)
|
{
|
int index;
|
|
for (index = 0; index < N_RES; index++) {
|
if ((mt9m114_res[index].width == w) &&
|
(mt9m114_res[index].height == h))
|
break;
|
}
|
|
/* No mode found */
|
if (index >= N_RES)
|
return NULL;
|
|
return &mt9m114_res[index];
|
}
|
|
static int mt9m114_res2size(struct v4l2_subdev *sd, int *h_size, int *v_size)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
unsigned short hsize;
|
unsigned short vsize;
|
|
switch (dev->res) {
|
case MT9M114_RES_736P:
|
hsize = MT9M114_RES_736P_SIZE_H;
|
vsize = MT9M114_RES_736P_SIZE_V;
|
break;
|
case MT9M114_RES_864P:
|
hsize = MT9M114_RES_864P_SIZE_H;
|
vsize = MT9M114_RES_864P_SIZE_V;
|
break;
|
case MT9M114_RES_960P:
|
hsize = MT9M114_RES_960P_SIZE_H;
|
vsize = MT9M114_RES_960P_SIZE_V;
|
break;
|
default:
|
v4l2_err(sd, "%s: Resolution 0x%08x unknown\n", __func__,
|
dev->res);
|
return -EINVAL;
|
}
|
|
if (h_size)
|
*h_size = hsize;
|
if (v_size)
|
*v_size = vsize;
|
|
return 0;
|
}
|
|
static int mt9m114_get_intg_factor(struct i2c_client *client,
|
struct camera_mipi_info *info,
|
const struct mt9m114_res_struct *res)
|
{
|
struct atomisp_sensor_mode_data *buf = &info->data;
|
u32 reg_val;
|
int ret;
|
|
if (!info)
|
return -EINVAL;
|
|
ret = mt9m114_read_reg(client, MISENSOR_32BIT,
|
REG_PIXEL_CLK, ®_val);
|
if (ret)
|
return ret;
|
buf->vt_pix_clk_freq_mhz = reg_val;
|
|
/* get integration time */
|
buf->coarse_integration_time_min = MT9M114_COARSE_INTG_TIME_MIN;
|
buf->coarse_integration_time_max_margin =
|
MT9M114_COARSE_INTG_TIME_MAX_MARGIN;
|
|
buf->fine_integration_time_min = MT9M114_FINE_INTG_TIME_MIN;
|
buf->fine_integration_time_max_margin =
|
MT9M114_FINE_INTG_TIME_MAX_MARGIN;
|
|
buf->fine_integration_time_def = MT9M114_FINE_INTG_TIME_MIN;
|
|
buf->frame_length_lines = res->lines_per_frame;
|
buf->line_length_pck = res->pixels_per_line;
|
buf->read_mode = res->bin_mode;
|
|
/* get the cropping and output resolution to ISP for this mode. */
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_H_START, ®_val);
|
if (ret)
|
return ret;
|
buf->crop_horizontal_start = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_V_START, ®_val);
|
if (ret)
|
return ret;
|
buf->crop_vertical_start = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_H_END, ®_val);
|
if (ret)
|
return ret;
|
buf->crop_horizontal_end = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_V_END, ®_val);
|
if (ret)
|
return ret;
|
buf->crop_vertical_end = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_WIDTH, ®_val);
|
if (ret)
|
return ret;
|
buf->output_width = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_HEIGHT, ®_val);
|
if (ret)
|
return ret;
|
buf->output_height = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_TIMING_HTS, ®_val);
|
if (ret)
|
return ret;
|
buf->line_length_pck = reg_val;
|
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_TIMING_VTS, ®_val);
|
if (ret)
|
return ret;
|
buf->frame_length_lines = reg_val;
|
|
buf->binning_factor_x = res->bin_factor_x ?
|
res->bin_factor_x : 1;
|
buf->binning_factor_y = res->bin_factor_y ?
|
res->bin_factor_y : 1;
|
return 0;
|
}
|
|
static int mt9m114_get_fmt(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_format *format)
|
{
|
struct v4l2_mbus_framefmt *fmt = &format->format;
|
int width, height;
|
int ret;
|
|
if (format->pad)
|
return -EINVAL;
|
fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
|
|
ret = mt9m114_res2size(sd, &width, &height);
|
if (ret)
|
return ret;
|
fmt->width = width;
|
fmt->height = height;
|
|
return 0;
|
}
|
|
static int mt9m114_set_fmt(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_format *format)
|
{
|
struct v4l2_mbus_framefmt *fmt = &format->format;
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
struct mt9m114_res_struct *res_index;
|
u32 width = fmt->width;
|
u32 height = fmt->height;
|
struct camera_mipi_info *mt9m114_info = NULL;
|
|
int ret;
|
|
if (format->pad)
|
return -EINVAL;
|
dev->streamon = 0;
|
dev->first_exp = MT9M114_DEFAULT_FIRST_EXP;
|
|
mt9m114_info = v4l2_get_subdev_hostdata(sd);
|
if (!mt9m114_info)
|
return -EINVAL;
|
|
mt9m114_try_res(&width, &height);
|
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
|
cfg->try_fmt = *fmt;
|
return 0;
|
}
|
res_index = mt9m114_to_res(width, height);
|
|
/* Sanity check */
|
if (unlikely(!res_index)) {
|
WARN_ON(1);
|
return -EINVAL;
|
}
|
|
switch (res_index->res) {
|
case MT9M114_RES_736P:
|
ret = mt9m114_write_reg_array(c, mt9m114_736P_init, NO_POLLING);
|
ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET);
|
break;
|
case MT9M114_RES_864P:
|
ret = mt9m114_write_reg_array(c, mt9m114_864P_init, NO_POLLING);
|
ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET);
|
break;
|
case MT9M114_RES_960P:
|
ret = mt9m114_write_reg_array(c, mt9m114_976P_init, NO_POLLING);
|
/* set sensor read_mode to Normal */
|
ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET);
|
break;
|
default:
|
v4l2_err(sd, "set resolution: %d failed!\n", res_index->res);
|
return -EINVAL;
|
}
|
|
if (ret)
|
return -EINVAL;
|
|
ret = mt9m114_write_reg_array(c, mt9m114_chgstat_reg, POST_POLLING);
|
if (ret < 0)
|
return ret;
|
|
if (mt9m114_set_suspend(sd))
|
return -EINVAL;
|
|
if (dev->res != res_index->res) {
|
int index;
|
|
/* Switch to different size */
|
if (width <= 640) {
|
dev->nctx = 0x00; /* Set for context A */
|
} else {
|
/*
|
* Context B is used for resolutions larger than 640x480
|
* Using YUV for Context B.
|
*/
|
dev->nctx = 0x01; /* set for context B */
|
}
|
|
/*
|
* Marked current sensor res as being "used"
|
*
|
* REVISIT: We don't need to use an "used" field on each mode
|
* list entry to know which mode is selected. If this
|
* information is really necessary, how about to use a single
|
* variable on sensor dev struct?
|
*/
|
for (index = 0; index < N_RES; index++) {
|
if ((width == mt9m114_res[index].width) &&
|
(height == mt9m114_res[index].height)) {
|
mt9m114_res[index].used = true;
|
continue;
|
}
|
mt9m114_res[index].used = false;
|
}
|
}
|
ret = mt9m114_get_intg_factor(c, mt9m114_info,
|
&mt9m114_res[res_index->res]);
|
if (ret) {
|
dev_err(&c->dev, "failed to get integration_factor\n");
|
return -EINVAL;
|
}
|
/*
|
* mt9m114 - we don't poll for context switch
|
* because it does not happen with streaming disabled.
|
*/
|
dev->res = res_index->res;
|
|
fmt->width = width;
|
fmt->height = height;
|
fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
|
return 0;
|
}
|
|
/* TODO: Update to SOC functions, remove exposure and gain */
|
static int mt9m114_g_focal(struct v4l2_subdev *sd, s32 *val)
|
{
|
*val = (MT9M114_FOCAL_LENGTH_NUM << 16) | MT9M114_FOCAL_LENGTH_DEM;
|
return 0;
|
}
|
|
static int mt9m114_g_fnumber(struct v4l2_subdev *sd, s32 *val)
|
{
|
/*const f number for mt9m114*/
|
*val = (MT9M114_F_NUMBER_DEFAULT_NUM << 16) | MT9M114_F_NUMBER_DEM;
|
return 0;
|
}
|
|
static int mt9m114_g_fnumber_range(struct v4l2_subdev *sd, s32 *val)
|
{
|
*val = (MT9M114_F_NUMBER_DEFAULT_NUM << 24) |
|
(MT9M114_F_NUMBER_DEM << 16) |
|
(MT9M114_F_NUMBER_DEFAULT_NUM << 8) | MT9M114_F_NUMBER_DEM;
|
return 0;
|
}
|
|
/* Horizontal flip the image. */
|
static int mt9m114_g_hflip(struct v4l2_subdev *sd, s32 *val)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
int ret;
|
u32 data;
|
|
ret = mt9m114_read_reg(c, MISENSOR_16BIT,
|
(u32)MISENSOR_READ_MODE, &data);
|
if (ret)
|
return ret;
|
*val = !!(data & MISENSOR_HFLIP_MASK);
|
|
return 0;
|
}
|
|
static int mt9m114_g_vflip(struct v4l2_subdev *sd, s32 *val)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
int ret;
|
u32 data;
|
|
ret = mt9m114_read_reg(c, MISENSOR_16BIT,
|
(u32)MISENSOR_READ_MODE, &data);
|
if (ret)
|
return ret;
|
*val = !!(data & MISENSOR_VFLIP_MASK);
|
|
return 0;
|
}
|
|
static long mt9m114_s_exposure(struct v4l2_subdev *sd,
|
struct atomisp_exposure *exposure)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
int ret = 0;
|
unsigned int coarse_integration = 0;
|
unsigned int FLines = 0;
|
unsigned int FrameLengthLines = 0; /* ExposureTime.FrameLengthLines; */
|
unsigned int AnalogGain, DigitalGain;
|
u32 AnalogGainToWrite = 0;
|
|
dev_dbg(&client->dev, "%s(0x%X 0x%X 0x%X)\n", __func__,
|
exposure->integration_time[0], exposure->gain[0],
|
exposure->gain[1]);
|
|
coarse_integration = exposure->integration_time[0];
|
/* fine_integration = ExposureTime.FineIntegrationTime; */
|
/* FrameLengthLines = ExposureTime.FrameLengthLines; */
|
FLines = mt9m114_res[dev->res].lines_per_frame;
|
AnalogGain = exposure->gain[0];
|
DigitalGain = exposure->gain[1];
|
if (!dev->streamon) {
|
/*Save the first exposure values while stream is off*/
|
dev->first_exp = coarse_integration;
|
dev->first_gain = AnalogGain;
|
dev->first_diggain = DigitalGain;
|
}
|
/* DigitalGain = 0x400 * (((u16) DigitalGain) >> 8) +
|
((unsigned int)(0x400 * (((u16) DigitalGain) & 0xFF)) >>8); */
|
|
/* set frame length */
|
if (FLines < coarse_integration + 6)
|
FLines = coarse_integration + 6;
|
if (FLines < FrameLengthLines)
|
FLines = FrameLengthLines;
|
ret = mt9m114_write_reg(client, MISENSOR_16BIT, 0x300A, FLines);
|
if (ret) {
|
v4l2_err(client, "%s: fail to set FLines\n", __func__);
|
return -EINVAL;
|
}
|
|
/* set coarse integration */
|
/* 3A provide real exposure time.
|
should not translate to any value here. */
|
ret = mt9m114_write_reg(client, MISENSOR_16BIT,
|
REG_EXPO_COARSE, (u16)(coarse_integration));
|
if (ret) {
|
v4l2_err(client, "%s: fail to set exposure time\n", __func__);
|
return -EINVAL;
|
}
|
|
/*
|
// set analog/digital gain
|
switch(AnalogGain)
|
{
|
case 0:
|
AnalogGainToWrite = 0x0;
|
break;
|
case 1:
|
AnalogGainToWrite = 0x20;
|
break;
|
case 2:
|
AnalogGainToWrite = 0x60;
|
break;
|
case 4:
|
AnalogGainToWrite = 0xA0;
|
break;
|
case 8:
|
AnalogGainToWrite = 0xE0;
|
break;
|
default:
|
AnalogGainToWrite = 0x20;
|
break;
|
}
|
*/
|
if (DigitalGain >= 16 || DigitalGain <= 1)
|
DigitalGain = 1;
|
/* AnalogGainToWrite =
|
(u16)((DigitalGain << 12) | AnalogGainToWrite); */
|
AnalogGainToWrite = (u16)((DigitalGain << 12) | (u16)AnalogGain);
|
ret = mt9m114_write_reg(client, MISENSOR_16BIT,
|
REG_GAIN, AnalogGainToWrite);
|
if (ret) {
|
v4l2_err(client, "%s: fail to set AnalogGainToWrite\n",
|
__func__);
|
return -EINVAL;
|
}
|
|
return ret;
|
}
|
|
static long mt9m114_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
{
|
switch (cmd) {
|
case ATOMISP_IOC_S_EXPOSURE:
|
return mt9m114_s_exposure(sd, arg);
|
default:
|
return -EINVAL;
|
}
|
|
return 0;
|
}
|
|
/* 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)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
u32 coarse;
|
int ret;
|
|
/* the fine integration time is currently not calculated */
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT,
|
REG_EXPO_COARSE, &coarse);
|
if (ret)
|
return ret;
|
|
*value = coarse;
|
return 0;
|
}
|
|
/*
|
* 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)
|
{
|
*val = 1;
|
|
return 0;
|
}
|
|
/*
|
* set exposure metering, average/center_weighted/spot/matrix.
|
*/
|
static int mt9m114_s_exposure_metering(struct v4l2_subdev *sd, s32 val)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
int ret;
|
|
switch (val) {
|
case V4L2_EXPOSURE_METERING_SPOT:
|
ret = mt9m114_write_reg_array(client, mt9m114_exp_average,
|
NO_POLLING);
|
if (ret) {
|
dev_err(&client->dev, "write exp_average reg err.\n");
|
return ret;
|
}
|
break;
|
case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
|
default:
|
ret = mt9m114_write_reg_array(client, mt9m114_exp_center,
|
NO_POLLING);
|
if (ret) {
|
dev_err(&client->dev, "write exp_default reg err");
|
return ret;
|
}
|
}
|
|
return 0;
|
}
|
|
/*
|
* This function is for touch exposure feature.
|
*/
|
static int mt9m114_s_exposure_selection(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_selection *sel)
|
{
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
struct misensor_reg exp_reg;
|
int width, height;
|
int grid_width, grid_height;
|
int grid_left, grid_top, grid_right, grid_bottom;
|
int win_left, win_top, win_right, win_bottom;
|
int i, j;
|
int ret;
|
|
if (sel->which != V4L2_SUBDEV_FORMAT_TRY &&
|
sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
|
return -EINVAL;
|
|
grid_left = sel->r.left;
|
grid_top = sel->r.top;
|
grid_right = sel->r.left + sel->r.width - 1;
|
grid_bottom = sel->r.top + sel->r.height - 1;
|
|
ret = mt9m114_res2size(sd, &width, &height);
|
if (ret)
|
return ret;
|
|
grid_width = width / 5;
|
grid_height = height / 5;
|
|
if (grid_width && grid_height) {
|
win_left = grid_left / grid_width;
|
win_top = grid_top / grid_height;
|
win_right = grid_right / grid_width;
|
win_bottom = grid_bottom / grid_height;
|
} else {
|
dev_err(&client->dev, "Incorrect exp grid.\n");
|
return -EINVAL;
|
}
|
|
win_left = clamp_t(int, win_left, 0, 4);
|
win_top = clamp_t(int, win_top, 0, 4);
|
win_right = clamp_t(int, win_right, 0, 4);
|
win_bottom = clamp_t(int, win_bottom, 0, 4);
|
|
ret = mt9m114_write_reg_array(client, mt9m114_exp_average, NO_POLLING);
|
if (ret) {
|
dev_err(&client->dev, "write exp_average reg err.\n");
|
return ret;
|
}
|
|
for (i = win_top; i <= win_bottom; i++) {
|
for (j = win_left; j <= win_right; j++) {
|
exp_reg = mt9m114_exp_win[i][j];
|
|
ret = mt9m114_write_reg(client, exp_reg.length,
|
exp_reg.reg, exp_reg.val);
|
if (ret) {
|
dev_err(&client->dev, "write exp_reg err.\n");
|
return ret;
|
}
|
}
|
}
|
|
return 0;
|
}
|
|
static int mt9m114_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
|
*val = mt9m114_res[dev->res].bin_factor_x;
|
|
return 0;
|
}
|
|
static int mt9m114_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
|
*val = mt9m114_res[dev->res].bin_factor_y;
|
|
return 0;
|
}
|
|
static int mt9m114_s_ev(struct v4l2_subdev *sd, s32 val)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
s32 luma = 0x37;
|
int err;
|
|
/* EV value only support -2 to 2
|
* 0: 0x37, 1:0x47, 2:0x57, -1:0x27, -2:0x17
|
*/
|
if (val < -2 || val > 2)
|
return -EINVAL;
|
luma += 0x10 * val;
|
dev_dbg(&c->dev, "%s val:%d luma:0x%x\n", __func__, val, luma);
|
err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC87A);
|
if (err) {
|
dev_err(&c->dev, "%s logic addr access error\n", __func__);
|
return err;
|
}
|
err = mt9m114_write_reg(c, MISENSOR_8BIT, 0xC87A, (u32)luma);
|
if (err) {
|
dev_err(&c->dev, "%s write target_average_luma failed\n",
|
__func__);
|
return err;
|
}
|
udelay(10);
|
|
return 0;
|
}
|
|
static int mt9m114_g_ev(struct v4l2_subdev *sd, s32 *val)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
int err;
|
u32 luma;
|
|
err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC87A);
|
if (err) {
|
dev_err(&c->dev, "%s logic addr access error\n", __func__);
|
return err;
|
}
|
err = mt9m114_read_reg(c, MISENSOR_8BIT, 0xC87A, &luma);
|
if (err) {
|
dev_err(&c->dev, "%s read target_average_luma failed\n",
|
__func__);
|
return err;
|
}
|
luma -= 0x17;
|
luma /= 0x10;
|
*val = (s32)luma - 2;
|
dev_dbg(&c->dev, "%s val:%d\n", __func__, *val);
|
|
return 0;
|
}
|
|
/* Fake interface
|
* mt9m114 now can not support 3a_lock
|
*/
|
static int mt9m114_s_3a_lock(struct v4l2_subdev *sd, s32 val)
|
{
|
aaalock = val;
|
return 0;
|
}
|
|
static int mt9m114_g_3a_lock(struct v4l2_subdev *sd, s32 *val)
|
{
|
if (aaalock)
|
return V4L2_LOCK_EXPOSURE | V4L2_LOCK_WHITE_BALANCE
|
| V4L2_LOCK_FOCUS;
|
return 0;
|
}
|
|
static int mt9m114_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct mt9m114_device *dev =
|
container_of(ctrl->handler, struct mt9m114_device, ctrl_handler);
|
struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
|
int ret = 0;
|
|
switch (ctrl->id) {
|
case V4L2_CID_VFLIP:
|
dev_dbg(&client->dev, "%s: CID_VFLIP:%d.\n",
|
__func__, ctrl->val);
|
ret = mt9m114_t_vflip(&dev->sd, ctrl->val);
|
break;
|
case V4L2_CID_HFLIP:
|
dev_dbg(&client->dev, "%s: CID_HFLIP:%d.\n",
|
__func__, ctrl->val);
|
ret = mt9m114_t_hflip(&dev->sd, ctrl->val);
|
break;
|
case V4L2_CID_EXPOSURE_METERING:
|
ret = mt9m114_s_exposure_metering(&dev->sd, ctrl->val);
|
break;
|
case V4L2_CID_EXPOSURE:
|
ret = mt9m114_s_ev(&dev->sd, ctrl->val);
|
break;
|
case V4L2_CID_3A_LOCK:
|
ret = mt9m114_s_3a_lock(&dev->sd, ctrl->val);
|
break;
|
default:
|
ret = -EINVAL;
|
}
|
return ret;
|
}
|
|
static int mt9m114_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct mt9m114_device *dev =
|
container_of(ctrl->handler, struct mt9m114_device, ctrl_handler);
|
int ret = 0;
|
|
switch (ctrl->id) {
|
case V4L2_CID_VFLIP:
|
ret = mt9m114_g_vflip(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_HFLIP:
|
ret = mt9m114_g_hflip(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_FOCAL_ABSOLUTE:
|
ret = mt9m114_g_focal(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_FNUMBER_ABSOLUTE:
|
ret = mt9m114_g_fnumber(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_FNUMBER_RANGE:
|
ret = mt9m114_g_fnumber_range(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_EXPOSURE_ABSOLUTE:
|
ret = mt9m114_g_exposure(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_EXPOSURE_ZONE_NUM:
|
ret = mt9m114_g_exposure_zone_num(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_BIN_FACTOR_HORZ:
|
ret = mt9m114_g_bin_factor_x(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_BIN_FACTOR_VERT:
|
ret = mt9m114_g_bin_factor_y(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_EXPOSURE:
|
ret = mt9m114_g_ev(&dev->sd, &ctrl->val);
|
break;
|
case V4L2_CID_3A_LOCK:
|
ret = mt9m114_g_3a_lock(&dev->sd, &ctrl->val);
|
break;
|
default:
|
ret = -EINVAL;
|
}
|
|
return ret;
|
}
|
|
static const struct v4l2_ctrl_ops ctrl_ops = {
|
.s_ctrl = mt9m114_s_ctrl,
|
.g_volatile_ctrl = mt9m114_g_volatile_ctrl
|
};
|
|
static struct v4l2_ctrl_config mt9m114_controls[] = {
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_VFLIP,
|
.name = "Image v-Flip",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = 1,
|
.step = 1,
|
.def = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_HFLIP,
|
.name = "Image h-Flip",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = 1,
|
.step = 1,
|
.def = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_FOCAL_ABSOLUTE,
|
.name = "focal length",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = MT9M114_FOCAL_LENGTH_DEFAULT,
|
.max = MT9M114_FOCAL_LENGTH_DEFAULT,
|
.step = 1,
|
.def = MT9M114_FOCAL_LENGTH_DEFAULT,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_FNUMBER_ABSOLUTE,
|
.name = "f-number",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = MT9M114_F_NUMBER_DEFAULT,
|
.max = MT9M114_F_NUMBER_DEFAULT,
|
.step = 1,
|
.def = MT9M114_F_NUMBER_DEFAULT,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_FNUMBER_RANGE,
|
.name = "f-number range",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = MT9M114_F_NUMBER_RANGE,
|
.max = MT9M114_F_NUMBER_RANGE,
|
.step = 1,
|
.def = MT9M114_F_NUMBER_RANGE,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
|
.name = "exposure",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = 0xffff,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_EXPOSURE_ZONE_NUM,
|
.name = "one-time exposure zone number",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = 0xffff,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_EXPOSURE_METERING,
|
.name = "metering",
|
.type = V4L2_CTRL_TYPE_MENU,
|
.min = 0,
|
.max = 3,
|
.step = 0,
|
.def = 1,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_BIN_FACTOR_HORZ,
|
.name = "horizontal binning factor",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = MT9M114_BIN_FACTOR_MAX,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_BIN_FACTOR_VERT,
|
.name = "vertical binning factor",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = 0,
|
.max = MT9M114_BIN_FACTOR_MAX,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_EXPOSURE,
|
.name = "exposure biasx",
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
.min = -2,
|
.max = 2,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
{
|
.ops = &ctrl_ops,
|
.id = V4L2_CID_3A_LOCK,
|
.name = "3a lock",
|
.type = V4L2_CTRL_TYPE_BITMASK,
|
.min = 0,
|
.max = V4L2_LOCK_EXPOSURE | V4L2_LOCK_WHITE_BALANCE | V4L2_LOCK_FOCUS,
|
.step = 1,
|
.def = 0,
|
.flags = 0,
|
},
|
};
|
|
static int mt9m114_detect(struct mt9m114_device *dev, struct i2c_client *client)
|
{
|
struct i2c_adapter *adapter = client->adapter;
|
u32 model;
|
int ret;
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
|
dev_err(&client->dev, "%s: i2c error", __func__);
|
return -ENODEV;
|
}
|
ret = mt9m114_read_reg(client, MISENSOR_16BIT, MT9M114_PID, &model);
|
if (ret)
|
return ret;
|
dev->real_model_id = model;
|
|
if (model != MT9M114_MOD_ID) {
|
dev_err(&client->dev, "%s: failed: client->addr = %x\n",
|
__func__, client->addr);
|
return -ENODEV;
|
}
|
|
return 0;
|
}
|
|
static int
|
mt9m114_s_config(struct v4l2_subdev *sd, int irq, void *platform_data)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
int ret;
|
|
if (!platform_data)
|
return -ENODEV;
|
|
dev->platform_data =
|
(struct camera_sensor_platform_data *)platform_data;
|
|
ret = power_up(sd);
|
if (ret) {
|
v4l2_err(client, "mt9m114 power-up err");
|
return ret;
|
}
|
|
/* config & detect sensor */
|
ret = mt9m114_detect(dev, client);
|
if (ret) {
|
v4l2_err(client, "mt9m114_detect err s_config.\n");
|
goto fail_detect;
|
}
|
|
ret = dev->platform_data->csi_cfg(sd, 1);
|
if (ret)
|
goto fail_csi_cfg;
|
|
ret = mt9m114_set_suspend(sd);
|
if (ret) {
|
v4l2_err(client, "mt9m114 suspend err");
|
return ret;
|
}
|
|
ret = power_down(sd);
|
if (ret) {
|
v4l2_err(client, "mt9m114 power down err");
|
return ret;
|
}
|
|
return ret;
|
|
fail_csi_cfg:
|
dev->platform_data->csi_cfg(sd, 0);
|
fail_detect:
|
power_down(sd);
|
dev_err(&client->dev, "sensor power-gating failed\n");
|
return ret;
|
}
|
|
/* Horizontal flip the image. */
|
static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
int err;
|
/* set for direct mode */
|
err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC850);
|
if (value) {
|
/* enable H flip ctx A */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x01, 0x01);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x01, 0x01);
|
/* ctx B */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x01, 0x01);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x01, 0x01);
|
|
err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_HFLIP_MASK, MISENSOR_FLIP_EN);
|
|
dev->bpat = MT9M114_BPAT_GRGRBGBG;
|
} else {
|
/* disable H flip ctx A */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x01, 0x00);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x01, 0x00);
|
/* ctx B */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x01, 0x00);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x01, 0x00);
|
|
err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_HFLIP_MASK, MISENSOR_FLIP_DIS);
|
|
dev->bpat = MT9M114_BPAT_BGBGGRGR;
|
}
|
|
err += mt9m114_write_reg(c, MISENSOR_8BIT, 0x8404, 0x06);
|
udelay(10);
|
|
return !!err;
|
}
|
|
/* Vertically flip the image */
|
static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value)
|
{
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
int err;
|
/* set for direct mode */
|
err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC850);
|
if (value >= 1) {
|
/* enable H flip - ctx A */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x02, 0x01);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x02, 0x01);
|
/* ctx B */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x02, 0x01);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x02, 0x01);
|
|
err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_VFLIP_MASK, MISENSOR_FLIP_EN);
|
} else {
|
/* disable H flip - ctx A */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x02, 0x00);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x02, 0x00);
|
/* ctx B */
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x02, 0x00);
|
err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x02, 0x00);
|
|
err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE,
|
MISENSOR_VFLIP_MASK, MISENSOR_FLIP_DIS);
|
}
|
|
err += mt9m114_write_reg(c, MISENSOR_8BIT, 0x8404, 0x06);
|
udelay(10);
|
|
return !!err;
|
}
|
|
static int mt9m114_g_frame_interval(struct v4l2_subdev *sd,
|
struct v4l2_subdev_frame_interval *interval)
|
{
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
|
interval->interval.numerator = 1;
|
interval->interval.denominator = mt9m114_res[dev->res].fps;
|
|
return 0;
|
}
|
|
static int mt9m114_s_stream(struct v4l2_subdev *sd, int enable)
|
{
|
int ret;
|
struct i2c_client *c = v4l2_get_subdevdata(sd);
|
struct mt9m114_device *dev = to_mt9m114_sensor(sd);
|
struct atomisp_exposure exposure;
|
|
if (enable) {
|
ret = mt9m114_write_reg_array(c, mt9m114_chgstat_reg,
|
POST_POLLING);
|
if (ret < 0)
|
return ret;
|
|
if (dev->first_exp > MT9M114_MAX_FIRST_EXP) {
|
exposure.integration_time[0] = dev->first_exp;
|
exposure.gain[0] = dev->first_gain;
|
exposure.gain[1] = dev->first_diggain;
|
mt9m114_s_exposure(sd, &exposure);
|
}
|
dev->streamon = 1;
|
|
} else {
|
dev->streamon = 0;
|
ret = mt9m114_set_suspend(sd);
|
}
|
|
return ret;
|
}
|
|
static int mt9m114_enum_mbus_code(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_mbus_code_enum *code)
|
{
|
if (code->index)
|
return -EINVAL;
|
code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
|
|
return 0;
|
}
|
|
static int mt9m114_enum_frame_size(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_frame_size_enum *fse)
|
{
|
unsigned int index = fse->index;
|
|
if (index >= N_RES)
|
return -EINVAL;
|
|
fse->min_width = mt9m114_res[index].width;
|
fse->min_height = mt9m114_res[index].height;
|
fse->max_width = mt9m114_res[index].width;
|
fse->max_height = mt9m114_res[index].height;
|
|
return 0;
|
}
|
|
static int mt9m114_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
|
{
|
int index;
|
struct mt9m114_device *snr = to_mt9m114_sensor(sd);
|
|
if (!frames)
|
return -EINVAL;
|
|
for (index = 0; index < N_RES; index++) {
|
if (mt9m114_res[index].res == snr->res)
|
break;
|
}
|
|
if (index >= N_RES)
|
return -EINVAL;
|
|
*frames = mt9m114_res[index].skip_frames;
|
|
return 0;
|
}
|
|
static const struct v4l2_subdev_video_ops mt9m114_video_ops = {
|
.s_stream = mt9m114_s_stream,
|
.g_frame_interval = mt9m114_g_frame_interval,
|
};
|
|
static const struct v4l2_subdev_sensor_ops mt9m114_sensor_ops = {
|
.g_skip_frames = mt9m114_g_skip_frames,
|
};
|
|
static const struct v4l2_subdev_core_ops mt9m114_core_ops = {
|
.s_power = mt9m114_s_power,
|
.ioctl = mt9m114_ioctl,
|
};
|
|
/* REVISIT: Do we need pad operations? */
|
static const struct v4l2_subdev_pad_ops mt9m114_pad_ops = {
|
.enum_mbus_code = mt9m114_enum_mbus_code,
|
.enum_frame_size = mt9m114_enum_frame_size,
|
.get_fmt = mt9m114_get_fmt,
|
.set_fmt = mt9m114_set_fmt,
|
.set_selection = mt9m114_s_exposure_selection,
|
};
|
|
static const struct v4l2_subdev_ops mt9m114_ops = {
|
.core = &mt9m114_core_ops,
|
.video = &mt9m114_video_ops,
|
.pad = &mt9m114_pad_ops,
|
.sensor = &mt9m114_sensor_ops,
|
};
|
|
static int mt9m114_remove(struct i2c_client *client)
|
{
|
struct mt9m114_device *dev;
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
dev = container_of(sd, struct mt9m114_device, sd);
|
dev->platform_data->csi_cfg(sd, 0);
|
v4l2_device_unregister_subdev(sd);
|
media_entity_cleanup(&dev->sd.entity);
|
v4l2_ctrl_handler_free(&dev->ctrl_handler);
|
kfree(dev);
|
return 0;
|
}
|
|
static int mt9m114_probe(struct i2c_client *client)
|
{
|
struct mt9m114_device *dev;
|
int ret = 0;
|
unsigned int i;
|
void *pdata;
|
|
/* Setup sensor configuration structure */
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
if (!dev)
|
return -ENOMEM;
|
|
v4l2_i2c_subdev_init(&dev->sd, client, &mt9m114_ops);
|
pdata = gmin_camera_platform_data(&dev->sd,
|
ATOMISP_INPUT_FORMAT_RAW_10,
|
atomisp_bayer_order_grbg);
|
if (pdata)
|
ret = mt9m114_s_config(&dev->sd, client->irq, pdata);
|
if (!pdata || ret) {
|
v4l2_device_unregister_subdev(&dev->sd);
|
kfree(dev);
|
return ret;
|
}
|
|
ret = atomisp_register_i2c_module(&dev->sd, pdata, RAW_CAMERA);
|
if (ret) {
|
v4l2_device_unregister_subdev(&dev->sd);
|
kfree(dev);
|
/* Coverity CID 298095 - return on error */
|
return ret;
|
}
|
|
/*TODO add format code here*/
|
dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
dev->pad.flags = MEDIA_PAD_FL_SOURCE;
|
dev->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
|
dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
|
|
ret =
|
v4l2_ctrl_handler_init(&dev->ctrl_handler,
|
ARRAY_SIZE(mt9m114_controls));
|
if (ret) {
|
mt9m114_remove(client);
|
return ret;
|
}
|
|
for (i = 0; i < ARRAY_SIZE(mt9m114_controls); i++)
|
v4l2_ctrl_new_custom(&dev->ctrl_handler, &mt9m114_controls[i],
|
NULL);
|
|
if (dev->ctrl_handler.error) {
|
mt9m114_remove(client);
|
return dev->ctrl_handler.error;
|
}
|
|
/* Use same lock for controls as for everything else. */
|
dev->ctrl_handler.lock = &dev->input_lock;
|
dev->sd.ctrl_handler = &dev->ctrl_handler;
|
|
/* REVISIT: Do we need media controller? */
|
ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
|
if (ret) {
|
mt9m114_remove(client);
|
return ret;
|
}
|
return 0;
|
}
|
|
static const struct acpi_device_id mt9m114_acpi_match[] = {
|
{ "INT33F0" },
|
{ "CRMT1040" },
|
{},
|
};
|
MODULE_DEVICE_TABLE(acpi, mt9m114_acpi_match);
|
|
static struct i2c_driver mt9m114_driver = {
|
.driver = {
|
.name = "mt9m114",
|
.acpi_match_table = mt9m114_acpi_match,
|
},
|
.probe_new = mt9m114_probe,
|
.remove = mt9m114_remove,
|
};
|
module_i2c_driver(mt9m114_driver);
|
|
MODULE_AUTHOR("Shuguang Gong <Shuguang.gong@intel.com>");
|
MODULE_LICENSE("GPL");
|
