1537 lines
35 KiB
C
1537 lines
35 KiB
C
/*
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* Support for OmniVision OV2722 1080p HD camera sensor.
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*
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* Copyright (c) 2013 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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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/delay.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/moduleparam.h>
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#include <media/v4l2-device.h>
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#ifndef CONFIG_GMIN_INTEL_MID /* FIXME! for non-gmin*/
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#include <media/v4l2-chip-ident.h>
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#else
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#include <linux/atomisp_gmin_platform.h>
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#endif
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#include <linux/acpi.h>
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#include <linux/io.h>
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#include "ov2722.h"
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/* i2c read/write stuff */
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static int ov2722_read_reg(struct i2c_client *client,
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u16 data_length, u16 reg, u16 *val)
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{
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int err;
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struct i2c_msg msg[2];
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unsigned char data[6];
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if (!client->adapter) {
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dev_err(&client->dev, "%s error, no client->adapter\n",
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__func__);
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return -ENODEV;
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}
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if (data_length != OV2722_8BIT && data_length != OV2722_16BIT
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&& data_length != OV2722_32BIT) {
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dev_err(&client->dev, "%s error, invalid data length\n",
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__func__);
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return -EINVAL;
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}
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memset(msg, 0 , sizeof(msg));
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msg[0].addr = client->addr;
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msg[0].flags = 0;
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msg[0].len = I2C_MSG_LENGTH;
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msg[0].buf = data;
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/* high byte goes out first */
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data[0] = (u8)(reg >> 8);
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data[1] = (u8)(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);
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if (err != 2) {
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if (err >= 0)
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err = -EIO;
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dev_err(&client->dev,
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"read from offset 0x%x error %d", reg, err);
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return err;
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}
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*val = 0;
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/* high byte comes first */
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if (data_length == OV2722_8BIT)
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*val = (u8)data[0];
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else if (data_length == OV2722_16BIT)
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*val = be16_to_cpu(*(u16 *)&data[0]);
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else
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*val = be32_to_cpu(*(u32 *)&data[0]);
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return 0;
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}
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static int ov2722_i2c_write(struct i2c_client *client, u16 len, u8 *data)
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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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msg.addr = client->addr;
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msg.flags = 0;
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msg.len = len;
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msg.buf = data;
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ret = i2c_transfer(client->adapter, &msg, 1);
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return ret == num_msg ? 0 : -EIO;
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}
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static int ov2722_write_reg(struct i2c_client *client, u16 data_length,
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u16 reg, u16 val)
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{
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int ret;
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unsigned char data[4] = {0};
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u16 *wreg = (u16 *)data;
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const u16 len = data_length + sizeof(u16); /* 16-bit address + data */
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if (data_length != OV2722_8BIT && data_length != OV2722_16BIT) {
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dev_err(&client->dev,
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"%s error, invalid data_length\n", __func__);
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return -EINVAL;
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}
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/* high byte goes out first */
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*wreg = cpu_to_be16(reg);
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if (data_length == OV2722_8BIT) {
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data[2] = (u8)(val);
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} else {
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/* OV2722_16BIT */
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u16 *wdata = (u16 *)&data[2];
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*wdata = cpu_to_be16(val);
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}
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ret = ov2722_i2c_write(client, len, data);
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if (ret)
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dev_err(&client->dev,
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"write error: wrote 0x%x to offset 0x%x error %d",
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val, reg, ret);
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return ret;
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}
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/*
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* ov2722_write_reg_array - Initializes a list of OV2722 registers
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* @client: i2c driver client structure
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* @reglist: list of registers to be written
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*
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* This function initializes a list of registers. When consecutive addresses
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* are found in a row on the list, this function creates a buffer and sends
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* consecutive data in a single i2c_transfer().
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*
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* __ov2722_flush_reg_array, __ov2722_buf_reg_array() and
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* __ov2722_write_reg_is_consecutive() are internal functions to
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* ov2722_write_reg_array_fast() and should be not used anywhere else.
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*
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*/
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static int __ov2722_flush_reg_array(struct i2c_client *client,
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struct ov2722_write_ctrl *ctrl)
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{
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u16 size;
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if (ctrl->index == 0)
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return 0;
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size = sizeof(u16) + ctrl->index; /* 16-bit address + data */
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ctrl->buffer.addr = cpu_to_be16(ctrl->buffer.addr);
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ctrl->index = 0;
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return ov2722_i2c_write(client, size, (u8 *)&ctrl->buffer);
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}
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static int __ov2722_buf_reg_array(struct i2c_client *client,
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struct ov2722_write_ctrl *ctrl,
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const struct ov2722_reg *next)
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{
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int size;
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u16 *data16;
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switch (next->type) {
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case OV2722_8BIT:
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size = 1;
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ctrl->buffer.data[ctrl->index] = (u8)next->val;
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break;
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case OV2722_16BIT:
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size = 2;
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data16 = (u16 *)&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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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 += size;
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/*
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* Buffer cannot guarantee free space for u32? Better flush it to avoid
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* possible lack of memory for next item.
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*/
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if (ctrl->index + sizeof(u16) >= OV2722_MAX_WRITE_BUF_SIZE)
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return __ov2722_flush_reg_array(client, ctrl);
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return 0;
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}
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static int __ov2722_write_reg_is_consecutive(struct i2c_client *client,
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struct ov2722_write_ctrl *ctrl,
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const struct ov2722_reg *next)
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{
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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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static int ov2722_write_reg_array(struct i2c_client *client,
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const struct ov2722_reg *reglist)
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{
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const struct ov2722_reg *next = reglist;
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struct ov2722_write_ctrl ctrl;
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int err;
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ctrl.index = 0;
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for (; next->type != OV2722_TOK_TERM; next++) {
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switch (next->type & OV2722_TOK_MASK) {
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case OV2722_TOK_DELAY:
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err = __ov2722_flush_reg_array(client, &ctrl);
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if (err)
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return err;
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msleep(next->val);
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break;
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default:
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/*
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* If next address is not consecutive, data needs to be
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* flushed before proceed.
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*/
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if (!__ov2722_write_reg_is_consecutive(client, &ctrl,
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next)) {
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err = __ov2722_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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err = __ov2722_buf_reg_array(client, &ctrl, next);
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if (err) {
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dev_err(&client->dev, "%s: write error, aborted\n",
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__func__);
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return err;
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}
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break;
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}
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}
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return __ov2722_flush_reg_array(client, &ctrl);
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}
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static int ov2722_g_focal(struct v4l2_subdev *sd, s32 *val)
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{
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*val = (OV2722_FOCAL_LENGTH_NUM << 16) | OV2722_FOCAL_LENGTH_DEM;
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return 0;
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}
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static int ov2722_g_fnumber(struct v4l2_subdev *sd, s32 *val)
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{
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/*const f number for imx*/
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*val = (OV2722_F_NUMBER_DEFAULT_NUM << 16) | OV2722_F_NUMBER_DEM;
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return 0;
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}
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static int ov2722_g_fnumber_range(struct v4l2_subdev *sd, s32 *val)
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{
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*val = (OV2722_F_NUMBER_DEFAULT_NUM << 24) |
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(OV2722_F_NUMBER_DEM << 16) |
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(OV2722_F_NUMBER_DEFAULT_NUM << 8) | OV2722_F_NUMBER_DEM;
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return 0;
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}
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static int ov2722_get_intg_factor(struct i2c_client *client,
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struct camera_mipi_info *info,
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const struct ov2722_resolution *res)
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{
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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struct ov2722_device *dev = to_ov2722_sensor(sd);
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struct atomisp_sensor_mode_data *buf = &info->data;
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const unsigned int ext_clk_freq_hz = 19200000;
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const unsigned int pll_invariant_div = 10;
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unsigned int pix_clk_freq_hz;
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u16 pre_pll_clk_div;
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u16 pll_multiplier;
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u16 op_pix_clk_div;
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u16 reg_val;
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int ret;
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if (info == NULL)
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return -EINVAL;
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/* pixel clock calculattion */
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ret = ov2722_read_reg(client, OV2722_8BIT,
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OV2722_SC_CMMN_PLL_CTRL3, &pre_pll_clk_div);
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if (ret)
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return ret;
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ret = ov2722_read_reg(client, OV2722_8BIT,
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OV2722_SC_CMMN_PLL_MULTIPLIER, &pll_multiplier);
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if (ret)
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return ret;
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ret = ov2722_read_reg(client, OV2722_8BIT,
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OV2722_SC_CMMN_PLL_DEBUG_OPT, &op_pix_clk_div);
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if (ret)
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return ret;
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pre_pll_clk_div = (pre_pll_clk_div & 0x70) >> 4;
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if (0 == pre_pll_clk_div)
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return -EINVAL;
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pll_multiplier = pll_multiplier & 0x7f;
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op_pix_clk_div = op_pix_clk_div & 0x03;
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pix_clk_freq_hz = ext_clk_freq_hz / pre_pll_clk_div * pll_multiplier
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* op_pix_clk_div/pll_invariant_div;
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dev->vt_pix_clk_freq_mhz = pix_clk_freq_hz;
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buf->vt_pix_clk_freq_mhz = pix_clk_freq_hz;
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/* get integration time */
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buf->coarse_integration_time_min = OV2722_COARSE_INTG_TIME_MIN;
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buf->coarse_integration_time_max_margin =
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OV2722_COARSE_INTG_TIME_MAX_MARGIN;
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buf->fine_integration_time_min = OV2722_FINE_INTG_TIME_MIN;
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buf->fine_integration_time_max_margin =
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OV2722_FINE_INTG_TIME_MAX_MARGIN;
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buf->fine_integration_time_def = OV2722_FINE_INTG_TIME_MIN;
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buf->frame_length_lines = res->lines_per_frame;
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buf->line_length_pck = res->pixels_per_line;
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buf->read_mode = res->bin_mode;
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/* get the cropping and output resolution to ISP for this mode. */
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_H_CROP_START_H, ®_val);
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if (ret)
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return ret;
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buf->crop_horizontal_start = reg_val;
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_V_CROP_START_H, ®_val);
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if (ret)
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return ret;
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buf->crop_vertical_start = reg_val;
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_H_CROP_END_H, ®_val);
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if (ret)
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return ret;
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buf->crop_horizontal_end = reg_val;
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_V_CROP_END_H, ®_val);
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if (ret)
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return ret;
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buf->crop_vertical_end = reg_val;
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_H_OUTSIZE_H, ®_val);
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if (ret)
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return ret;
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buf->output_width = reg_val;
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ret = ov2722_read_reg(client, OV2722_16BIT,
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OV2722_V_OUTSIZE_H, ®_val);
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if (ret)
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return ret;
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buf->output_height = reg_val;
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buf->binning_factor_x = res->bin_factor_x ?
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res->bin_factor_x : 1;
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buf->binning_factor_y = res->bin_factor_y ?
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res->bin_factor_y : 1;
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return 0;
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}
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static long __ov2722_set_exposure(struct v4l2_subdev *sd, int coarse_itg,
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int gain, int digitgain)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct ov2722_device *dev = to_ov2722_sensor(sd);
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u16 hts, vts;
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int ret;
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/* clear VTS_DIFF on manual mode */
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ret = ov2722_write_reg(client, OV2722_16BIT, OV2722_VTS_DIFF_H, 0);
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if (ret)
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return ret;
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hts = dev->pixels_per_line;
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vts = dev->lines_per_frame;;
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if ((coarse_itg + OV2722_COARSE_INTG_TIME_MAX_MARGIN) > vts)
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vts = coarse_itg + OV2722_COARSE_INTG_TIME_MAX_MARGIN;
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coarse_itg <<= 4;
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digitgain <<= 2;
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/* group hold start */
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ret = ov2722_write_reg(client, OV2722_8BIT, OV2722_GROUP_ACCESS, 0);
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if (ret)
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return ret;
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_VTS_H, vts);
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if (ret)
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return ret;
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_HTS_H, hts);
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if (ret)
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return ret;
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/* set exposure */
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ret = ov2722_write_reg(client, OV2722_8BIT,
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OV2722_AEC_PK_EXPO_L,
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coarse_itg & 0xff);
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if (ret)
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return ret;
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_AEC_PK_EXPO_H,
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(coarse_itg >> 8) & 0xfff);
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if (ret)
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return ret;
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/* set analog gain */
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_AGC_ADJ_H, gain);
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if (ret)
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return ret;
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/* set digital gain */
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_MWB_GAIN_R_H, digitgain);
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if (ret)
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return ret;
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_MWB_GAIN_G_H, digitgain);
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if (ret)
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return ret;
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ret = ov2722_write_reg(client, OV2722_16BIT,
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OV2722_MWB_GAIN_B_H, digitgain);
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if (ret)
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return ret;
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/* group hold end */
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ret = ov2722_write_reg(client, OV2722_8BIT,
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OV2722_GROUP_ACCESS, 0x10);
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if (ret)
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return ret;
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/* group hold launch */
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ret = ov2722_write_reg(client, OV2722_8BIT,
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OV2722_GROUP_ACCESS, 0xa0);
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return ret;
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}
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|
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static int ov2722_set_exposure(struct v4l2_subdev *sd, int exposure,
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int gain, int digitgain)
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{
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struct ov2722_device *dev = to_ov2722_sensor(sd);
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int ret;
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mutex_lock(&dev->input_lock);
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ret = __ov2722_set_exposure(sd, exposure, gain, digitgain);
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mutex_unlock(&dev->input_lock);
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return ret;
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}
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|
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static long ov2722_s_exposure(struct v4l2_subdev *sd,
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struct atomisp_exposure *exposure)
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{
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int exp = exposure->integration_time[0];
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int gain = exposure->gain[0];
|
|
int digitgain = exposure->gain[1];
|
|
|
|
/* we should not accept the invalid value below. */
|
|
if (gain == 0) {
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
v4l2_err(client, "%s: invalid value\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return ov2722_set_exposure(sd, exp, gain, digitgain);
|
|
}
|
|
|
|
static long ov2722_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
|
|
switch (cmd) {
|
|
case ATOMISP_IOC_S_EXPOSURE:
|
|
return ov2722_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 ov2722_q_exposure(struct v4l2_subdev *sd, s32 *value)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
u16 reg_v, reg_v2;
|
|
int ret;
|
|
|
|
/* get exposure */
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_AEC_PK_EXPO_L,
|
|
®_v);
|
|
if (ret)
|
|
goto err;
|
|
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_AEC_PK_EXPO_M,
|
|
®_v2);
|
|
if (ret)
|
|
goto err;
|
|
|
|
reg_v += reg_v2 << 8;
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_AEC_PK_EXPO_H,
|
|
®_v2);
|
|
if (ret)
|
|
goto err;
|
|
|
|
*value = reg_v + (((u32)reg_v2 << 16));
|
|
err:
|
|
return ret;
|
|
}
|
|
struct ov2722_control ov2722_controls[] = {
|
|
{
|
|
.qc = {
|
|
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "exposure",
|
|
.minimum = 0x0,
|
|
.maximum = 0xffff,
|
|
.step = 0x01,
|
|
.default_value = 0x00,
|
|
.flags = 0,
|
|
},
|
|
.query = ov2722_q_exposure,
|
|
},
|
|
{
|
|
.qc = {
|
|
.id = V4L2_CID_FOCAL_ABSOLUTE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "focal length",
|
|
.minimum = OV2722_FOCAL_LENGTH_DEFAULT,
|
|
.maximum = OV2722_FOCAL_LENGTH_DEFAULT,
|
|
.step = 0x01,
|
|
.default_value = OV2722_FOCAL_LENGTH_DEFAULT,
|
|
.flags = 0,
|
|
},
|
|
.query = ov2722_g_focal,
|
|
},
|
|
{
|
|
.qc = {
|
|
.id = V4L2_CID_FNUMBER_ABSOLUTE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "f-number",
|
|
.minimum = OV2722_F_NUMBER_DEFAULT,
|
|
.maximum = OV2722_F_NUMBER_DEFAULT,
|
|
.step = 0x01,
|
|
.default_value = OV2722_F_NUMBER_DEFAULT,
|
|
.flags = 0,
|
|
},
|
|
.query = ov2722_g_fnumber,
|
|
},
|
|
{
|
|
.qc = {
|
|
.id = V4L2_CID_FNUMBER_RANGE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "f-number range",
|
|
.minimum = OV2722_F_NUMBER_RANGE,
|
|
.maximum = OV2722_F_NUMBER_RANGE,
|
|
.step = 0x01,
|
|
.default_value = OV2722_F_NUMBER_RANGE,
|
|
.flags = 0,
|
|
},
|
|
.query = ov2722_g_fnumber_range,
|
|
},
|
|
};
|
|
#define N_CONTROLS (ARRAY_SIZE(ov2722_controls))
|
|
|
|
static int ov2722_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct ov2722_device *dev = container_of(ctrl->handler, struct ov2722_device,
|
|
ctrl_handler);
|
|
unsigned int val;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_LINK_FREQ:
|
|
val = ov2722_res[dev->fmt_idx].mipi_freq;
|
|
if (val == 0)
|
|
return -EINVAL;
|
|
|
|
ctrl->val = val * 1000; /* To Hz */
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct ov2722_control *ov2722_find_control(u32 id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < N_CONTROLS; i++)
|
|
if (ov2722_controls[i].qc.id == id)
|
|
return &ov2722_controls[i];
|
|
return NULL;
|
|
}
|
|
|
|
static int ov2722_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
|
|
{
|
|
struct ov2722_control *ctrl = ov2722_find_control(qc->id);
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
if (ctrl == NULL)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
*qc = ctrl->qc;
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* imx control set/get */
|
|
static int ov2722_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
struct ov2722_control *s_ctrl;
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
int ret;
|
|
|
|
if (!ctrl)
|
|
return -EINVAL;
|
|
|
|
s_ctrl = ov2722_find_control(ctrl->id);
|
|
if ((s_ctrl == NULL) || (s_ctrl->query == NULL))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
ret = s_ctrl->query(sd, &ctrl->value);
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ov2722_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
struct ov2722_control *octrl = ov2722_find_control(ctrl->id);
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
int ret;
|
|
|
|
if ((octrl == NULL) || (octrl->tweak == NULL))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
ret = octrl->tweak(sd, ctrl->value);
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ov2722_init(struct v4l2_subdev *sd)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
|
|
/* restore settings */
|
|
ov2722_res = ov2722_res_preview;
|
|
N_RES = N_RES_PREVIEW;
|
|
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int power_ctrl(struct v4l2_subdev *sd, bool flag)
|
|
{
|
|
int ret = -1;
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
if (!dev || !dev->platform_data)
|
|
return -ENODEV;
|
|
|
|
/* Non-gmin platforms use the legacy callback */
|
|
if (dev->platform_data->power_ctrl)
|
|
return dev->platform_data->power_ctrl(sd, flag);
|
|
|
|
#ifdef CONFIG_GMIN_INTEL_MID
|
|
if (flag) {
|
|
ret = dev->platform_data->v2p8_ctrl(sd, 1);
|
|
if (ret == 0) {
|
|
ret = dev->platform_data->v1p8_ctrl(sd, 1);
|
|
if (ret)
|
|
dev->platform_data->v2p8_ctrl(sd, 0);
|
|
}
|
|
} else {
|
|
ret = dev->platform_data->v1p8_ctrl(sd, 0);
|
|
ret |= dev->platform_data->v2p8_ctrl(sd, 0);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int gpio_ctrl(struct v4l2_subdev *sd, bool flag)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
int ret = -1;
|
|
|
|
if (!dev || !dev->platform_data)
|
|
return -ENODEV;
|
|
|
|
/* Non-gmin platforms use the legacy callback */
|
|
if (dev->platform_data->gpio_ctrl)
|
|
return dev->platform_data->gpio_ctrl(sd, flag);
|
|
|
|
#ifdef CONFIG_GMIN_INTEL_MID
|
|
/* Note: the GPIO order is asymmetric: always RESET#
|
|
* before PWDN# when turning it on or off. */
|
|
ret = dev->platform_data->gpio0_ctrl(sd, flag);
|
|
/*
|
|
*ov2722 PWDN# active high when pull down,opposite to the convention
|
|
*/
|
|
ret |= dev->platform_data->gpio1_ctrl(sd, !flag);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static int power_up(struct v4l2_subdev *sd)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret;
|
|
|
|
if (NULL == 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;
|
|
|
|
/* according to DS, at least 5ms is needed between DOVDD and PWDN */
|
|
usleep_range(5000, 6000);
|
|
|
|
/* gpio ctrl */
|
|
ret = gpio_ctrl(sd, 1);
|
|
if (ret) {
|
|
ret = gpio_ctrl(sd, 0);
|
|
if (ret)
|
|
goto fail_power;
|
|
}
|
|
|
|
/* flis clock control */
|
|
ret = dev->platform_data->flisclk_ctrl(sd, 1);
|
|
if (ret)
|
|
goto fail_clk;
|
|
|
|
/* according to DS, 20ms is needed between PWDN and i2c access */
|
|
msleep(20);
|
|
|
|
return 0;
|
|
|
|
fail_clk:
|
|
dev->platform_data->gpio_ctrl(sd, 0);
|
|
fail_power:
|
|
dev->platform_data->power_ctrl(sd, 0);
|
|
dev_err(&client->dev, "sensor power-up failed\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int power_down(struct v4l2_subdev *sd)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret = 0;
|
|
|
|
if (NULL == 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) {
|
|
ret = gpio_ctrl(sd, 0);
|
|
if (ret)
|
|
dev_err(&client->dev, "gpio failed 2\n");
|
|
}
|
|
|
|
/* power control */
|
|
ret = power_ctrl(sd, 0);
|
|
if (ret)
|
|
dev_err(&client->dev, "vprog failed.\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ov2722_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
int ret;
|
|
if (on == 0)
|
|
return power_down(sd);
|
|
else {
|
|
ret = power_up(sd);
|
|
if (!ret)
|
|
return ov2722_init(sd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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 800
|
|
static int distance(struct ov2722_resolution *res, u32 w, u32 h)
|
|
{
|
|
unsigned int w_ratio = ((res->width << 13)/w);
|
|
unsigned int h_ratio;
|
|
int match;
|
|
|
|
if (h == 0)
|
|
return -1;
|
|
h_ratio = ((res->height << 13) / h);
|
|
if (h_ratio == 0)
|
|
return -1;
|
|
match = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
|
|
|
|
if ((w_ratio < (int)8192) || (h_ratio < (int)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;
|
|
struct ov2722_resolution *tmp_res = NULL;
|
|
|
|
for (i = 0; i < N_RES; i++) {
|
|
tmp_res = &ov2722_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 get_resolution_index(int w, int h)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < N_RES; i++) {
|
|
if (w != ov2722_res[i].width)
|
|
continue;
|
|
if (h != ov2722_res[i].height)
|
|
continue;
|
|
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int ov2722_try_mbus_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt)
|
|
{
|
|
int idx;
|
|
|
|
if (!fmt)
|
|
return -EINVAL;
|
|
idx = nearest_resolution_index(fmt->width,
|
|
fmt->height);
|
|
if (idx == -1) {
|
|
/* return the largest resolution */
|
|
fmt->width = ov2722_res[N_RES - 1].width;
|
|
fmt->height = ov2722_res[N_RES - 1].height;
|
|
} else {
|
|
fmt->width = ov2722_res[idx].width;
|
|
fmt->height = ov2722_res[idx].height;
|
|
}
|
|
fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* TODO: remove it. */
|
|
static int startup(struct v4l2_subdev *sd)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret = 0;
|
|
|
|
ret = ov2722_write_reg(client, OV2722_8BIT,
|
|
OV2722_SW_RESET, 0x01);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 reset err.\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = ov2722_write_reg_array(client, ov2722_res[dev->fmt_idx].regs);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 write register err.\n");
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ov2722_s_mbus_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct camera_mipi_info *ov2722_info = NULL;
|
|
int ret = 0;
|
|
|
|
ov2722_info = v4l2_get_subdev_hostdata(sd);
|
|
if (ov2722_info == NULL)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
ret = ov2722_try_mbus_fmt(sd, fmt);
|
|
if (ret == -1) {
|
|
dev_err(&client->dev, "try fmt fail\n");
|
|
goto err;
|
|
}
|
|
|
|
dev->fmt_idx = get_resolution_index(fmt->width,
|
|
fmt->height);
|
|
if (dev->fmt_idx == -1) {
|
|
dev_err(&client->dev, "get resolution fail\n");
|
|
mutex_unlock(&dev->input_lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev->pixels_per_line = ov2722_res[dev->fmt_idx].pixels_per_line;
|
|
dev->lines_per_frame = ov2722_res[dev->fmt_idx].lines_per_frame;
|
|
|
|
ret = startup(sd);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 startup err\n");
|
|
goto err;
|
|
}
|
|
|
|
ret = ov2722_get_intg_factor(client, ov2722_info,
|
|
&ov2722_res[dev->fmt_idx]);
|
|
if (ret)
|
|
dev_err(&client->dev, "failed to get integration_factor\n");
|
|
|
|
err:
|
|
mutex_unlock(&dev->input_lock);
|
|
return ret;
|
|
}
|
|
static int ov2722_g_mbus_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
if (!fmt)
|
|
return -EINVAL;
|
|
|
|
fmt->width = ov2722_res[dev->fmt_idx].width;
|
|
fmt->height = ov2722_res[dev->fmt_idx].height;
|
|
fmt->code = V4L2_MBUS_FMT_SBGGR10_1X10;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_detect(struct i2c_client *client)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
u16 high, low;
|
|
int ret;
|
|
u16 id;
|
|
u8 revision;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
|
|
return -ENODEV;
|
|
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_SC_CMMN_CHIP_ID_H, &high);
|
|
if (ret) {
|
|
dev_err(&client->dev, "sensor_id_high = 0x%x\n", high);
|
|
return -ENODEV;
|
|
}
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_SC_CMMN_CHIP_ID_L, &low);
|
|
id = ((((u16) high) << 8) | (u16) low);
|
|
|
|
if ((id != OV2722_ID) && (id != OV2720_ID)) {
|
|
dev_err(&client->dev, "sensor ID error\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = ov2722_read_reg(client, OV2722_8BIT,
|
|
OV2722_SC_CMMN_SUB_ID, &high);
|
|
revision = (u8) high & 0x0f;
|
|
|
|
dev_dbg(&client->dev, "sensor_revision = 0x%x\n", revision);
|
|
dev_dbg(&client->dev, "detect ov2722 success\n");
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_s_stream(struct v4l2_subdev *sd, int enable)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
|
|
ret = ov2722_write_reg(client, OV2722_8BIT, OV2722_SW_STREAM,
|
|
enable ? OV2722_START_STREAMING :
|
|
OV2722_STOP_STREAMING);
|
|
|
|
mutex_unlock(&dev->input_lock);
|
|
return ret;
|
|
}
|
|
|
|
/* ov2722 enum frame size, frame intervals */
|
|
static int ov2722_enum_framesizes(struct v4l2_subdev *sd,
|
|
struct v4l2_frmsizeenum *fsize)
|
|
{
|
|
unsigned int index = fsize->index;
|
|
|
|
if (index >= N_RES)
|
|
return -EINVAL;
|
|
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
|
fsize->discrete.width = ov2722_res[index].width;
|
|
fsize->discrete.height = ov2722_res[index].height;
|
|
fsize->reserved[0] = ov2722_res[index].used;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_enum_frameintervals(struct v4l2_subdev *sd,
|
|
struct v4l2_frmivalenum *fival)
|
|
{
|
|
unsigned int index = fival->index;
|
|
|
|
if (index >= N_RES)
|
|
return -EINVAL;
|
|
|
|
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
|
|
fival->width = ov2722_res[index].width;
|
|
fival->height = ov2722_res[index].height;
|
|
fival->discrete.numerator = 1;
|
|
fival->discrete.denominator = ov2722_res[index].fps;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_enum_mbus_fmt(struct v4l2_subdev *sd,
|
|
unsigned int index,
|
|
enum v4l2_mbus_pixelcode *code)
|
|
{
|
|
*code = V4L2_MBUS_FMT_SBGGR10_1X10;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_s_config(struct v4l2_subdev *sd,
|
|
int irq, void *platform_data)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret = 0;
|
|
|
|
if (platform_data == NULL)
|
|
return -ENODEV;
|
|
|
|
dev->platform_data =
|
|
(struct camera_sensor_platform_data *)platform_data;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
if (dev->platform_data->platform_init) {
|
|
ret = dev->platform_data->platform_init(client);
|
|
if (ret) {
|
|
dev_err(&client->dev, "platform init err\n");
|
|
goto platform_init_failed;
|
|
}
|
|
}
|
|
|
|
/* power off the module, then power on it in future
|
|
* as first power on by board may not fulfill the
|
|
* power on sequqence needed by the module
|
|
*/
|
|
ret = power_down(sd);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 power-off err.\n");
|
|
goto fail_power_off;
|
|
}
|
|
|
|
ret = power_up(sd);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 power-up err.\n");
|
|
goto fail_power_on;
|
|
}
|
|
|
|
ret = dev->platform_data->csi_cfg(sd, 1);
|
|
if (ret)
|
|
goto fail_csi_cfg;
|
|
|
|
/* config & detect sensor */
|
|
ret = ov2722_detect(client);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722_detect err s_config.\n");
|
|
goto fail_csi_cfg;
|
|
}
|
|
|
|
/* turn off sensor, after probed */
|
|
ret = power_down(sd);
|
|
if (ret) {
|
|
dev_err(&client->dev, "ov2722 power-off err.\n");
|
|
goto fail_csi_cfg;
|
|
}
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return 0;
|
|
|
|
fail_csi_cfg:
|
|
dev->platform_data->csi_cfg(sd, 0);
|
|
fail_power_on:
|
|
power_down(sd);
|
|
dev_err(&client->dev, "sensor power-gating failed\n");
|
|
fail_power_off:
|
|
if (dev->platform_data->platform_deinit)
|
|
dev->platform_data->platform_deinit();
|
|
platform_init_failed:
|
|
mutex_unlock(&dev->input_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int ov2722_g_parm(struct v4l2_subdev *sd,
|
|
struct v4l2_streamparm *param)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
|
|
if (!param)
|
|
return -EINVAL;
|
|
|
|
if (param->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
dev_err(&client->dev, "unsupported buffer type.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
memset(param, 0, sizeof(*param));
|
|
param->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (dev->fmt_idx >= 0 && dev->fmt_idx < N_RES) {
|
|
param->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
|
|
param->parm.capture.timeperframe.numerator = 1;
|
|
param->parm.capture.capturemode = dev->run_mode;
|
|
param->parm.capture.timeperframe.denominator =
|
|
ov2722_res[dev->fmt_idx].fps;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_s_parm(struct v4l2_subdev *sd,
|
|
struct v4l2_streamparm *param)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
dev->run_mode = param->parm.capture.capturemode;
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
switch (dev->run_mode) {
|
|
case CI_MODE_VIDEO:
|
|
ov2722_res = ov2722_res_video;
|
|
N_RES = N_RES_VIDEO;
|
|
break;
|
|
case CI_MODE_STILL_CAPTURE:
|
|
ov2722_res = ov2722_res_still;
|
|
N_RES = N_RES_STILL;
|
|
break;
|
|
default:
|
|
ov2722_res = ov2722_res_preview;
|
|
N_RES = N_RES_PREVIEW;
|
|
}
|
|
mutex_unlock(&dev->input_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_g_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_frame_interval *interval)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
interval->interval.numerator = 1;
|
|
interval->interval.denominator = ov2722_res[dev->fmt_idx].fps;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_enum_mbus_code(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_mbus_code_enum *code)
|
|
{
|
|
if (code->index >= MAX_FMTS)
|
|
return -EINVAL;
|
|
|
|
code->code = V4L2_MBUS_FMT_SBGGR10_1X10;
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_enum_frame_size(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_frame_size_enum *fse)
|
|
{
|
|
int index = fse->index;
|
|
|
|
if (index >= N_RES)
|
|
return -EINVAL;
|
|
|
|
fse->min_width = ov2722_res[index].width;
|
|
fse->min_height = ov2722_res[index].height;
|
|
fse->max_width = ov2722_res[index].width;
|
|
fse->max_height = ov2722_res[index].height;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static struct v4l2_mbus_framefmt *
|
|
__ov2722_get_pad_format(struct ov2722_device *sensor,
|
|
struct v4l2_subdev_fh *fh, unsigned int pad,
|
|
enum v4l2_subdev_format_whence which)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
|
|
|
|
if (pad != 0) {
|
|
dev_err(&client->dev,
|
|
"__ov2722_get_pad_format err. pad %x\n", pad);
|
|
return NULL;
|
|
}
|
|
|
|
switch (which) {
|
|
case V4L2_SUBDEV_FORMAT_TRY:
|
|
return v4l2_subdev_get_try_format(fh, pad);
|
|
case V4L2_SUBDEV_FORMAT_ACTIVE:
|
|
return &sensor->format;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int ov2722_get_pad_format(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct ov2722_device *snr = to_ov2722_sensor(sd);
|
|
struct v4l2_mbus_framefmt *format =
|
|
__ov2722_get_pad_format(snr, fh, fmt->pad, fmt->which);
|
|
if (!format)
|
|
return -EINVAL;
|
|
|
|
fmt->format = *format;
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_set_pad_format(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_fh *fh,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct ov2722_device *snr = to_ov2722_sensor(sd);
|
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
|
|
snr->format = fmt->format;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
|
|
{
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
|
|
mutex_lock(&dev->input_lock);
|
|
*frames = ov2722_res[dev->fmt_idx].skip_frames;
|
|
mutex_unlock(&dev->input_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_subdev_sensor_ops ov2722_sensor_ops = {
|
|
.g_skip_frames = ov2722_g_skip_frames,
|
|
};
|
|
|
|
static struct v4l2_ctrl_ops ov2722_ctrl_ops = {
|
|
.g_volatile_ctrl = ov2722_g_volatile_ctrl,
|
|
};
|
|
|
|
static const struct v4l2_ctrl_config v4l2_ctrl_link_freq = {
|
|
.ops = &ov2722_ctrl_ops,
|
|
.id = V4L2_CID_LINK_FREQ,
|
|
.name = "Link Frequency",
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.min = 1,
|
|
.max = 1500000 * 1000,
|
|
.step = 1,
|
|
.def = 1,
|
|
.flags = V4L2_CTRL_FLAG_VOLATILE | V4L2_CTRL_FLAG_READ_ONLY,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops ov2722_video_ops = {
|
|
.s_stream = ov2722_s_stream,
|
|
.g_parm = ov2722_g_parm,
|
|
.s_parm = ov2722_s_parm,
|
|
.enum_framesizes = ov2722_enum_framesizes,
|
|
.enum_frameintervals = ov2722_enum_frameintervals,
|
|
.enum_mbus_fmt = ov2722_enum_mbus_fmt,
|
|
.try_mbus_fmt = ov2722_try_mbus_fmt,
|
|
.g_mbus_fmt = ov2722_g_mbus_fmt,
|
|
.s_mbus_fmt = ov2722_s_mbus_fmt,
|
|
.g_frame_interval = ov2722_g_frame_interval,
|
|
};
|
|
|
|
static const struct v4l2_subdev_core_ops ov2722_core_ops = {
|
|
.s_power = ov2722_s_power,
|
|
.queryctrl = ov2722_queryctrl,
|
|
.g_ctrl = ov2722_g_ctrl,
|
|
.s_ctrl = ov2722_s_ctrl,
|
|
.ioctl = ov2722_ioctl,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops ov2722_pad_ops = {
|
|
.enum_mbus_code = ov2722_enum_mbus_code,
|
|
.enum_frame_size = ov2722_enum_frame_size,
|
|
.get_fmt = ov2722_get_pad_format,
|
|
.set_fmt = ov2722_set_pad_format,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops ov2722_ops = {
|
|
.core = &ov2722_core_ops,
|
|
.video = &ov2722_video_ops,
|
|
.pad = &ov2722_pad_ops,
|
|
.sensor = &ov2722_sensor_ops,
|
|
};
|
|
|
|
static int ov2722_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
struct ov2722_device *dev = to_ov2722_sensor(sd);
|
|
dev_dbg(&client->dev, "ov2722_remove...\n");
|
|
|
|
if (dev->platform_data->platform_deinit)
|
|
dev->platform_data->platform_deinit();
|
|
|
|
dev->platform_data->csi_cfg(sd, 0);
|
|
v4l2_ctrl_handler_free(&dev->ctrl_handler);
|
|
v4l2_device_unregister_subdev(sd);
|
|
media_entity_cleanup(&dev->sd.entity);
|
|
kfree(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __ov2722_init_ctrl_handler(struct ov2722_device *dev)
|
|
{
|
|
struct v4l2_ctrl_handler *hdl;
|
|
|
|
hdl = &dev->ctrl_handler;
|
|
|
|
v4l2_ctrl_handler_init(&dev->ctrl_handler, 3);
|
|
|
|
dev->link_freq = v4l2_ctrl_new_custom(&dev->ctrl_handler,
|
|
&v4l2_ctrl_link_freq,
|
|
NULL);
|
|
|
|
if (dev->ctrl_handler.error || dev->link_freq == NULL) {
|
|
return dev->ctrl_handler.error;
|
|
}
|
|
|
|
dev->sd.ctrl_handler = hdl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ov2722_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct ov2722_device *dev;
|
|
void *ovpdev;
|
|
int ret;
|
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev) {
|
|
dev_err(&client->dev, "out of memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mutex_init(&dev->input_lock);
|
|
|
|
dev->fmt_idx = 0;
|
|
v4l2_i2c_subdev_init(&(dev->sd), client, &ov2722_ops);
|
|
|
|
ovpdev = client->dev.platform_data;
|
|
#ifdef CONFIG_GMIN_INTEL_MID
|
|
if (ACPI_COMPANION(&client->dev))
|
|
ovpdev = gmin_camera_platform_data(&dev->sd,
|
|
ATOMISP_INPUT_FORMAT_RAW_10,
|
|
atomisp_bayer_order_grbg);
|
|
#endif
|
|
ret = ov2722_s_config(&dev->sd, client->irq, ovpdev);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
ret = __ov2722_init_ctrl_handler(dev);
|
|
if (ret)
|
|
goto out_ctrl_handler_free;
|
|
|
|
dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
|
dev->pad.flags = MEDIA_PAD_FL_SOURCE;
|
|
dev->format.code = V4L2_MBUS_FMT_SBGGR10_1X10;
|
|
dev->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
|
|
|
|
ret = media_entity_init(&dev->sd.entity, 1, &dev->pad, 0);
|
|
if (ret)
|
|
ov2722_remove(client);
|
|
|
|
#ifdef CONFIG_GMIN_INTEL_MID
|
|
if (ACPI_HANDLE(&client->dev))
|
|
ret = atomisp_register_i2c_module(&dev->sd, ovpdev, RAW_CAMERA);
|
|
#endif
|
|
|
|
return ret;
|
|
|
|
out_ctrl_handler_free:
|
|
v4l2_ctrl_handler_free(&dev->ctrl_handler);
|
|
|
|
out_free:
|
|
v4l2_device_unregister_subdev(&dev->sd);
|
|
kfree(dev);
|
|
return ret;
|
|
}
|
|
|
|
MODULE_DEVICE_TABLE(i2c, ov2722_id);
|
|
|
|
static struct acpi_device_id ov2722_acpi_match[] = {
|
|
{ "INT33FB" },
|
|
{},
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(acpi, ov2722_acpi_match);
|
|
|
|
static struct i2c_driver ov2722_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = OV2722_NAME,
|
|
.acpi_match_table = ACPI_PTR(ov2722_acpi_match),
|
|
},
|
|
.probe = ov2722_probe,
|
|
.remove = ov2722_remove,
|
|
.id_table = ov2722_id,
|
|
};
|
|
|
|
static int init_ov2722(void)
|
|
{
|
|
return i2c_add_driver(&ov2722_driver);
|
|
}
|
|
|
|
static void exit_ov2722(void)
|
|
{
|
|
|
|
i2c_del_driver(&ov2722_driver);
|
|
}
|
|
|
|
module_init(init_ov2722);
|
|
module_exit(exit_ov2722);
|
|
|
|
MODULE_AUTHOR("Wei Liu <wei.liu@intel.com>");
|
|
MODULE_DESCRIPTION("A low-level driver for OmniVision 2722 sensors");
|
|
MODULE_LICENSE("GPL");
|