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android_kernel_modules_leno.../camera/drivers/media/i2c/ov8865.c

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/*
* Support for OmniVision ov8865 8MP camera sensor.
*
* Copyright (c) 2011 Intel Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/bitops.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <asm/intel-mid.h>
#include <linux/firmware.h>
#include "ov8865.h"
#ifndef __KERNEL__
#define __KERNEL__
#endif
#include "ov8865_bld_otp.c"
#define OV8865_BIN_FACTOR_MAX 2
#define OV8865_OTP_INPUT_NAME "ov8865_otp.bin"
#define to_ov8865_sensor(sd) container_of(sd, struct ov8865_device, sd)
#define DEBUG_VERBOSE (1<<0)
#define DEBUG_GAIN_EXP (1<<1)
#define DEBUG_INTG_FACT (1<<2)
#define DEBUG_OTP (1<<4)
static unsigned int debug = 0x00;
module_param(debug, int, 0644);
struct ov8865_device * global_dev;
static unsigned int ctrl_value;
static int bu64243_vcm_ctrl(const char *val, struct kernel_param *kp);
static int bu64243_t_focus_abs(struct v4l2_subdev *sd, s32 value);
module_param_call(vcm_ctrl, bu64243_vcm_ctrl, param_get_uint,
&ctrl_value, S_IRUGO | S_IWUSR);
static int ov8865_raw_size;
static int ov8865_otp_size;
static unsigned char ov8865_raw[DATA_BUF_SIZE];
static unsigned char ov8865_otp_data[DATA_BUF_SIZE];
static u16 exposure_time;
static int op_dump_otp;
static int ov8865_dump_otp(const char *val, struct kernel_param *kp);
module_param_call(dump_otp, ov8865_dump_otp, param_get_uint,
&op_dump_otp, S_IRUGO | S_IWUSR);
#define OV8865_DEFAULT_LOG_LEVEL 1
static unsigned int log_level = OV8865_DEFAULT_LOG_LEVEL;
module_param(log_level, int, 0644);
#define OV8865_LOG(level, a, ...) \
do { \
if (level < log_level) \
printk(a,## __VA_ARGS__); \
} while (0)
static int ov8865_dump_otp(const char *val, struct kernel_param *kp)
{
int ret;
ret = ov8865_otp_save(ov8865_raw, ov8865_raw_size, OV8865_SAVE_RAW_DATA);
if(ret != 0)
OV8865_LOG(2, "Fail to save ov8865 RAW data\n");
ret = ov8865_otp_save(ov8865_otp_data, ov8865_otp_size, OV8865_SAVE_OTP_DATA);
if(ret != 0)
OV8865_LOG(2, "Fail to save ov8865 OTP data\n");
return 0;
}
static int
ov8865_read_reg(struct i2c_client *client, u16 len, u16 reg, u16 *val)
{
struct i2c_msg msg[2];
u16 data[OV8865_SHORT_MAX];
int err, i;
if (!client->adapter) {
v4l2_err(client, "%s error, no client->adapter\n", __func__);
return -ENODEV;
}
/* @len should be even when > 1 */
if (len > OV8865_BYTE_MAX) {
v4l2_err(client, "%s error, invalid data length\n", __func__);
return -EINVAL;
}
memset(msg, 0, sizeof(msg));
memset(data, 0, sizeof(data));
msg[0].addr = client->addr;
msg[0].flags = 0;
msg[0].len = I2C_MSG_LENGTH;
msg[0].buf = (u8 *)data;
/* high byte goes first */
data[0] = cpu_to_be16(reg);
msg[1].addr = client->addr;
msg[1].len = len;
msg[1].flags = I2C_M_RD;
msg[1].buf = (u8 *)data;
err = i2c_transfer(client->adapter, msg, 2);
if (err < 0)
goto error;
/* high byte comes first */
if (len == OV8865_8BIT) {
*val = (u8)data[0];
} else {
/* 16-bit access is default when len > 1 */
for (i = 0; i < (len >> 1); i++)
val[i] = be16_to_cpu(data[i]);
}
return 0;
error:
dev_err(&client->dev, "read from offset 0x%x error %d", reg, err);
return err;
}
static int ov8865_i2c_write(struct i2c_client *client, u16 len, u8 *data)
{
struct i2c_msg msg;
const int num_msg = 1;
int ret;
int retry = 0;
again:
msg.addr = client->addr;
msg.flags = 0;
msg.len = len;
msg.buf = data;
ret = i2c_transfer(client->adapter, &msg, 1);
/*
* It is said that Rev 2 sensor needs some delay here otherwise
* registers do not seem to load correctly. But tests show that
* removing the delay would not cause any in-stablility issue and the
* delay will cause serious performance down, so, removed previous
* mdelay(1) here.
*/
if (ret == num_msg) {
return 0;
}
if (retry <= I2C_RETRY_COUNT) {
dev_err(&client->dev, "retrying i2c write transfer... %d",
retry);
retry++;
msleep(20);
goto again;
}
return ret;
}
static int
ov8865_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u16 val)
{
int ret;
unsigned char data[4] = {0};
u16 *wreg;
const u16 len = data_length + sizeof(u16); /* 16-bit address + data */
if (!client->adapter) {
v4l2_err(client, "%s error, no client->adapter\n", __func__);
return -ENODEV;
}
if (data_length != OV8865_8BIT && data_length != OV8865_16BIT) {
v4l2_err(client, "%s error, invalid data_length\n", __func__);
return -EINVAL;
}
/* high byte goes out first */
wreg = (u16 *)data;
*wreg = cpu_to_be16(reg);
if (data_length == OV8865_8BIT) {
data[2] = (u8)(val);
} else {
/* OV8865_16BIT */
u16 *wdata = (u16 *)&data[2];
*wdata = be16_to_cpu(val);
}
//printk("ov8865, ov8865_write_reg ,before ov8865_i2c_write\n");
ret = ov8865_i2c_write(client, len, data);
if (ret) {
// printk("ov8865_i2c_write error\n");
dev_err(&client->dev,
"write error: wrote 0x%x to offset 0x%x error %d",
val, reg, ret);
}
return ret;
}
/*
* ov8865_write_reg_array - Initializes a list of MT9M114 registers
* @client: i2c driver client structure
* @reglist: list of registers to be written
*
* 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().
*
* __ov8865_flush_reg_array, __ov8865_buf_reg_array() and
* __ov8865_write_reg_is_consecutive() are internal functions to
* ov8865_write_reg_array_fast() and should be not used anywhere else.
*
*/
static int __ov8865_flush_reg_array(struct i2c_client *client,
struct ov8865_write_ctrl *ctrl)
{
u16 size;
if (ctrl->index == 0)
return 0;
size = sizeof(u16) + ctrl->index; /* 16-bit address + data */
ctrl->buffer.addr = cpu_to_be16(ctrl->buffer.addr);
ctrl->index = 0;
//printk("ov8865, __ov8865_flush_reg_array, before ov8865_i2c_write\n");
return ov8865_i2c_write(client, size, (u8 *)&ctrl->buffer);
}
static int __ov8865_buf_reg_array(struct i2c_client *client,
struct ov8865_write_ctrl *ctrl,
const struct ov8865_reg *next)
{
int size;
u16 *data16;
switch (next->type) {
case OV8865_8BIT:
size = 1;
ctrl->buffer.data[ctrl->index] = (u8)next->val;
break;
case OV8865_16BIT:
size = 2;
data16 = (u16 *)&ctrl->buffer.data[ctrl->index];
*data16 = cpu_to_be16((u16)next->val);
break;
default:
return -EINVAL;
}
/* When first item is added, we need to store its starting address */
if (ctrl->index == 0)
ctrl->buffer.addr = next->reg.sreg;
ctrl->index += size;
/*
* Buffer cannot guarantee free space for u32? Better flush it to avoid
* possible lack of memory for next item.
*/
if (ctrl->index + sizeof(u16) >= OV8865_MAX_WRITE_BUF_SIZE)
__ov8865_flush_reg_array(client, ctrl);
return 0;
}
static int
__ov8865_write_reg_is_consecutive(struct i2c_client *client,
struct ov8865_write_ctrl *ctrl,
const struct ov8865_reg *next)
{
if (ctrl->index == 0)
return 1;
return ctrl->buffer.addr + ctrl->index == next->reg.sreg;
}
static int ov8865_write_reg_array(struct i2c_client *client,
const struct ov8865_reg *reglist)
{
const struct ov8865_reg *next = reglist;
struct ov8865_write_ctrl ctrl;
int err;
ctrl.index = 0;
for (; next->type != OV8865_TOK_TERM; next++) {
switch (next->type & OV8865_TOK_MASK) {
case OV8865_TOK_DELAY:
err = __ov8865_flush_reg_array(client, &ctrl);
if (err)
return err;
msleep(next->val);
break;
default:
/*
* If next address is not consecutive, data needs to be
* flushed before proceed.
*/
if (!__ov8865_write_reg_is_consecutive(client, &ctrl,
next)) {
err = __ov8865_flush_reg_array(client, &ctrl);
if (err)
return err;
}
err = __ov8865_buf_reg_array(client, &ctrl, next);
if (err) {
v4l2_err(client, "%s: write error, aborted\n",
__func__);
//printk("ov8865, ov8865_write_reg_array ,error");
return err;
}
break;
}
}
return __ov8865_flush_reg_array(client, &ctrl);
}
static int bu64243_write8(struct v4l2_subdev *sd, int reg, int val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct bu64243_device *dev = to_bu64243_device(sd);
struct i2c_msg msg;
memset(&msg, 0 , sizeof(msg));
msg.addr = BU64243_I2C_ADDR;
msg.len = 2;
msg.buf = dev->buffer;
msg.buf[0] = reg;
msg.buf[1] = val;
OV8865_LOG(1, "%s %d reg:0x%x val:0x%x\n", __func__, __LINE__, reg, val);
return i2c_transfer(client->adapter, &msg, 1);
}
static int bu64243_read8(struct v4l2_subdev *sd, int reg, u8 * data)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct bu64243_device *dev = to_bu64243_device(sd);
struct i2c_msg msg[2];
int r;
OV8865_LOG(1, "%s %d reg:0x%x\n", __func__, __LINE__, reg);
memset(msg, 0 , sizeof(msg));
msg[0].addr = BU64243_I2C_ADDR;
msg[0].flags = 0;
msg[0].len = 1;
msg[0].buf = dev->buffer;
msg[0].buf[0] = reg;
msg[1].addr = BU64243_I2C_ADDR;
msg[1].flags = I2C_M_RD;
msg[1].len = 2;
msg[1].buf = data;
r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
if (r != ARRAY_SIZE(msg))
return -EIO;
return 0;
}
static int bu64243_cmd(struct v4l2_subdev *sd, s32 reg, s32 val)
{
int cmd = 0;
struct bu64243_device *dev = to_bu64243_device(sd);
OV8865_LOG(1, "BU64243 reg:%d\n", reg);
OV8865_LOG(1, "BU64243_PS(dev->power_state):%x-->%x\n", dev->power_state, BU64243_PS(dev->power_state));
OV8865_LOG(1, "BU64243_EN(dev->output_status):%x-->%x\n", dev->output_status, BU64243_EN(dev->output_status));
OV8865_LOG(1, "BU64243_PS(dev->W0_W2):%x-->%x\n", reg, BU64243_W0_W2(reg));
OV8865_LOG(1, "BU64243_PS(dev->isrc):%x-->%x\n", dev->isrc_mode, BU64243_M(dev->isrc_mode));
OV8865_LOG(1, "BU64243_PS(dev->D9D8):%x-->%x\n", val, BU64243_D_HI(val));
cmd = BU64243_PS(dev->power_state) | BU64243_EN(dev->output_status) |
BU64243_W0_W2(reg) | BU64243_M(dev->isrc_mode) |
BU64243_D_HI(val);
return cmd;
}
static int bu64243_init(struct v4l2_subdev *sd)
{
/* shunyong for power on */
OV8865_LOG(1, "Bu64243 needs no platform data, nothing need to do\n");
return 0;
}
static int bu64243_power_up(struct v4l2_subdev *sd)
{
struct bu64243_device *dev = to_bu64243_device(sd);
struct ov8865_device *ov8865_dev = to_ov8865_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int r, value;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
dev->power_state = 1;
dev->output_status = BU64243_DEFAULT_OUTPUT_STATUS; /* */
dev->point_a = BU64243_DEFAULT_POINT_A; /* 0 um */
dev->point_b = BU64243_DEFAULT_POINT_B; /* lens float */
dev->focus = BU64243_DEFAULT_POINT_C; /* focus point*/
dev->res_freq = BU64243_DEFAULT_VCM_FREQ; /* resonant frequency*/
dev->slew_rate = BU64243_DEFAULT_SLEW_RATE; /* slew rate*/
dev->step_res = BU64243_DEFAULT_RES_SETTING; /* step resolution */
dev->step_time = BU64243_DEFAULT_STEP_TIME_SETTING; /* step time */
dev->isrc_mode = BU64243_DEFAULT_ISRC_MODE;
/* jiggle SCL pin to wake up device */
if (ov8865_dev->otp_data != NULL) {
/*reprogram VCM point A, B*/
unsigned int focus_far = ov8865_dev->otp_data[8] | ov8865_dev->otp_data[7];
if (focus_far < (VCM_ORIENTATION_OFFSET + INTEL_FOCUS_OFFSET +1 + POINT_AB_OFFSET))
focus_far = VCM_ORIENTATION_OFFSET + INTEL_FOCUS_OFFSET +1 + POINT_AB_OFFSET;
dev->point_b = focus_far - VCM_ORIENTATION_OFFSET - INTEL_FOCUS_OFFSET -1; /* lens loat */
dev->point_a = dev->point_b - POINT_AB_OFFSET; /* 0 um */
OV8865_LOG(1, "%s focus far in OTP:%d point a:%d b:%d \n", __func__, focus_far, dev->point_a, dev->point_b);
}
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_VCM_CURRENT, dev->focus), BU64243_D_LO(dev->focus));
if (r < 0)
return r;
value = (BU64243_RFEQ(dev->res_freq)) | BU64243_SRATE((dev->slew_rate));
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_PARAM_1, value), BU64243_D_LO(value));
if (r < 0)
return r;
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_PARAM_2, dev->point_a), BU64243_D_LO(dev->point_a));
if (r < 0)
return r;
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_PARAM_3, dev->point_b), BU64243_D_LO(dev->point_b));
if (r < 0)
return r;
value = (BU64243_STIME(dev->step_time)) | (BU64243_SRES(dev->step_res));
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_PARAM_4, value), BU64243_D_LO(value));
if (r < 0)
return r;
dev->initialized = true;
v4l2_info(client, "detected bu64243\n");
return 0;
/* shunyong for power on */
OV8865_LOG(1, "power is controlled via sensor control\n");
//printk("power is controlled via sensor control\n");
return r;
}
static int bu64243_power_down(struct v4l2_subdev *sd)
{
struct bu64243_device *dev = to_bu64243_device(sd);
unsigned int focus_far =0;
u8 data[10];
struct ov8865_device *ov8865_dev = to_ov8865_sensor(sd);
int r,i;
s32 current_value,average,focus_value;
if (ov8865_dev->otp_data != NULL) {
/*reprogram VCM point A, B*/
OV8865_LOG(1,"otp data valid !!!enter bu64243_power_down \n ");
focus_far = ov8865_dev->otp_data[8] | ov8865_dev->otp_data[7];
if (focus_far < (VCM_ORIENTATION_OFFSET + INTEL_FOCUS_OFFSET +1 + POINT_AB_OFFSET))
focus_far = VCM_ORIENTATION_OFFSET + INTEL_FOCUS_OFFSET +1 + POINT_AB_OFFSET;
OV8865_LOG(1, "%s focus far in OTP:%d point a:%d b:%d \n", __func__, focus_far, dev->point_a, dev->point_b);
}
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_VCM_CURRENT, focus_far), BU64243_D_LO(focus_far));
if (r < 0)
return r;
bu64243_read8(sd, bu64243_cmd(sd, BU64243_VCM_CURRENT, 0), data);
current_value = ((data[0] &0x03)<<8) +data[1];
average = current_value/10;
OV8865_LOG(1, "current_value = %d , average = %d\n",current_value,average);
for (i= 1; i < 11; i ++){
focus_value =current_value -average*i;
OV8865_LOG(1,"focus_value = %d\n",focus_value);
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_VCM_CURRENT, focus_value), BU64243_D_LO(focus_value));
if (r < 0)
return r;
mdelay(5);
}
/* shunyong for power on */
OV8865_LOG(1, "power is controlled via sensor control\n");
return 0;
}
static void bu64243_dump_regs(struct v4l2_subdev *sd)
{
int i;
u8 data[10];
OV8865_LOG(2, "%s %d\n", __func__, __LINE__);
for (i = 0; i < 5; i ++) {
bu64243_read8(sd, bu64243_cmd(sd, i, 0), data);
OV8865_LOG(2, "%s %d reg:%d data[0]:0x%x data[1]:0x%x\n", __func__, __LINE__, i, data[0], data[1]);
}
}
static int bu64243_t_focus_abs(struct v4l2_subdev *sd, s32 value)
{
struct bu64243_device *dev = to_bu64243_device(sd);
int r;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
if (!dev->initialized)
return -ENODEV;
value = clamp(value, 0, BU64243_MAX_FOCUS_POS);
OV8865_LOG(1, "%s %d value:%x cmd:%x low:%x\n", __func__, __LINE__, value, bu64243_cmd(sd, BU64243_VCM_CURRENT, value), BU64243_D_LO(value));
r = bu64243_write8(sd, bu64243_cmd(sd, BU64243_VCM_CURRENT, value), BU64243_D_LO(value));
if (r < 0)
return r;
getnstimeofday(&dev->focus_time);
dev->focus = value;
return 0;
}
static int bu64243_vcm_ctrl(const char *val, struct kernel_param *kp)
{
int ret;
int rv = param_set_int(val, kp);
OV8865_LOG(2, "%s %d\n", __func__, __LINE__);
if (rv)
return rv;
/* Enable power */
OV8865_LOG(2, "%s %d enable power\n", __func__, __LINE__);
ret = global_dev->platform_data->power_ctrl(&(global_dev->sd), 1);
mdelay(200);
bu64243_power_up(&(global_dev->sd));
mdelay(10);
bu64243_t_focus_abs(&(global_dev->sd), ctrl_value);
OV8865_LOG(2, "%s %d ctrl value:0x%x\n", __func__, __LINE__, ctrl_value);
bu64243_dump_regs(&(global_dev->sd));
return 0;
}
/* Start group hold for the following register writes */
static int ov8865_grouphold_start(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
const int group = 0;
return ov8865_write_reg(client, OV8865_8BIT,
OV8865_GROUP_ACCESS,
group | OV8865_GROUP_ACCESS_HOLD_START);
}
/* End group hold and delay launch it */
static int ov8865_grouphold_launch(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
const int group = 0;
int ret;
/* End group */
ret = ov8865_write_reg(client, OV8865_8BIT,
OV8865_GROUP_ACCESS,
group | OV8865_GROUP_ACCESS_HOLD_END);
if (ret)
return ret;
/* Delay launch group (during next vertical blanking) */
return ov8865_write_reg(client, OV8865_8BIT,
OV8865_GROUP_ACCESS,
group | OV8865_GROUP_ACCESS_DELAY_LAUNCH);
}
static int ov8865_g_priv_int_data(struct v4l2_subdev *sd,
struct v4l2_private_int_data *priv)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov8865_device *dev = to_ov8865_sensor(sd);
u8 __user *to = priv->data;
u32 read_size = priv->size;
int ret;
int i;
u8 * pdata;
/* No need to copy data if size is 0 */
if (!read_size)
goto out;
if (dev->otp_data == NULL) {
dev_err(&client->dev, "OTP data not available");
return -1;
}
/* Correct read_size value only if bigger than maximum */
if (read_size > DATA_BUF_SIZE)
read_size = DATA_BUF_SIZE;
pdata = (u8 *) dev->otp_data;
for (i = 0;i < 10; i ++) OV8865_LOG(2, "%d %x\n", i, pdata[i]);
OV8865_LOG(2, "yangsy %s %d read:%d\n", __func__, __LINE__, read_size);
ret = copy_to_user(to, dev->otp_data, read_size);
if (ret) {
dev_err(&client->dev, "%s: failed to copy OTP data to user\n",
__func__);
return -EFAULT;
}
out:
/* Return correct size */
priv->size = DATA_BUF_SIZE;
OV8865_LOG(2, "%s %d qurry size:%d\n", __func__, __LINE__, priv->size);
return 0;
}
static int __ov8865_get_max_fps_index(
const struct ov8865_fps_setting *fps_settings)
{
int i;
for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
if (fps_settings[i].fps == 0)
break;
}
return i - 1;
}
static int __ov8865_update_frame_timing(struct v4l2_subdev *sd, int exposure,
u16 *hts, u16 *vts)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
/* Increase the VTS to match exposure + 14 */
if (exposure > *vts - OV8865_INTEGRATION_TIME_MARGIN)
*vts = (u16) exposure + OV8865_INTEGRATION_TIME_MARGIN;
ret = ov8865_write_reg(client, OV8865_16BIT, OV8865_TIMING_HTS, *hts);
if (ret)
return ret;
return ov8865_write_reg(client, OV8865_16BIT, OV8865_TIMING_VTS, *vts);
}
static int __ov8865_set_exposure(struct v4l2_subdev *sd, int exposure, int gain,
int dig_gain, u16 *hts, u16 *vts)
{
/* shunyong: disabled exposure setting */
struct i2c_client *client = v4l2_get_subdevdata(sd);
int exp_val, ret;
/* Update frame timings. Expsure must be minimum < vts-14 */
ret = __ov8865_update_frame_timing(sd, exposure, hts, vts);
if (ret)
return ret;
/* For OV8835, the low 4 bits are fraction bits and must be kept 0 */
exp_val = exposure << 4;
exposure_time = exposure;
ret = ov8865_write_reg(client, OV8865_8BIT,
OV8865_LONG_EXPO+2, exp_val & 0xFF);
if (ret)
return ret;
ret = ov8865_write_reg(client, OV8865_8BIT,
OV8865_LONG_EXPO+1, (exp_val >> 8) & 0xFF);
if (ret)
return ret;
ret = ov8865_write_reg(client, OV8865_8BIT,
OV8865_LONG_EXPO, (exp_val >> 16) & 0x0F);
if (ret)
return ret;
/* Digital gain : to all MWB channel gains */
if (dig_gain) {
ret = ov8865_write_reg(client, OV8865_8BIT,
OV8865_DIGI_GAIN, ((dig_gain >> 6) & 0xFF));
if (ret)
return ret;
ret = ov8865_write_reg(client, OV8865_8BIT,
(OV8865_DIGI_GAIN + 1), dig_gain & 0x3F);
if (ret)
return ret;
}
return ov8865_write_reg(client, OV8865_16BIT, OV8865_AGC_ADJ, gain & 0x1FFF);
}
static int ov8865_set_exposure(struct v4l2_subdev *sd, int exposure, int gain,
int dig_gain)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
const struct ov8865_resolution *res;
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 hts, vts;
int ret;
mutex_lock(&dev->input_lock);
/* Validate exposure: cannot exceed 16bit value */
exposure = clamp_t(int, exposure, 0, OV8865_MAX_EXPOSURE_VALUE);
/* Validate gain: must not exceed maximum 8bit value */
gain = clamp_t(int, gain, 0, OV8865_MAX_GAIN_VALUE);
/* Validate digital gain: must not exceed 12 bit value*/
dig_gain = clamp_t(int, dig_gain, 0, OV8865_MWB_GAIN_MAX);
/* Group hold is valid only if sensor is streaming. */
if (dev->streaming) {
ret = ov8865_grouphold_start(sd);
if (ret)
goto out;
}
res = &dev->curr_res_table[dev->fmt_idx];
hts = res->fps_options[dev->fps_index].pixels_per_line;
vts = res->fps_options[dev->fps_index].lines_per_frame;
ret = __ov8865_set_exposure(sd, exposure, gain, dig_gain, &hts, &vts);
if (ret)
goto out;
/* Updated the device variable. These are the current values. */
dev->gain = gain;
dev->exposure = exposure;
dev->digital_gain = dig_gain;
out:
/* Group hold launch - delayed launch */
if (dev->streaming)
ret = ov8865_grouphold_launch(sd);
mutex_unlock(&dev->input_lock);
if (debug & DEBUG_GAIN_EXP) {
u16 val3500, val3501, val3502;
u16 val3503, val3508, val3509, val350a, val350b, val501e;
int val_exp, val_again;
OV8865_LOG(2, "%s %d exposure:%d(0x%x) gain:%d(8x%x)\n", __func__,
__LINE__, exposure, exposure, gain, gain);
ov8865_read_reg(client, OV8865_8BIT, 0x3500, &val3500);
ov8865_read_reg(client, OV8865_8BIT, 0x3501, &val3501);
ov8865_read_reg(client, OV8865_8BIT, 0x3502, &val3502);
val_exp = (val3502 + (val3501 << 8) + (val3500 << 16)) >> 4;
OV8865_LOG(2, "%s %d 0x3500:%x 0x3501:%x 0x3502:%x exposure(dec):%d\n", __func__,
__LINE__, val3500, val3501, val3502, val_exp);
ov8865_read_reg(client, OV8865_8BIT, 0x3503, &val3503);
ov8865_read_reg(client, OV8865_8BIT, 0x3508, &val3508);
ov8865_read_reg(client, OV8865_8BIT, 0x3509, &val3509);
ov8865_read_reg(client, OV8865_8BIT, 0x350a, &val350a);
ov8865_read_reg(client, OV8865_8BIT, 0x350b, &val350b);
ov8865_read_reg(client, OV8865_8BIT, 0x501e, &val501e);
val_again = ((val3508 << 8) + val3509) >> 7;
OV8865_LOG(2, "%s %d 0x3503:%x 0x3508:%x 0x3509:%x val_again:(dec):%d\n", __func__,
__LINE__, val3503, val3508, val3509, val_again);
OV8865_LOG(2, "%s %d 0x501e:%x 0x350a:%x 0x350b:%x\n", __func__, __LINE__,
val501e, val350a, val350b);
}
return ret;
}
static int ov8865_s_exposure(struct v4l2_subdev *sd,
struct atomisp_exposure *exposure)
{
return ov8865_set_exposure(sd, exposure->integration_time[0],
exposure->gain[0], exposure->gain[1]);
}
static long ov8865_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
switch (cmd) {
case ATOMISP_IOC_S_EXPOSURE:
return ov8865_s_exposure(sd, (struct atomisp_exposure *)arg);
case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA:
return ov8865_g_priv_int_data(sd, arg);
default:
return -EINVAL;
}
return 0;
}
static int ov8865_init_registers(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov8865_device *dev = to_ov8865_sensor(sd);
//printk("ov8865, ov8865_init_registers\n");
dev->basic_settings_list = ov8865_BasicSettings;
return ov8865_write_reg_array(client, dev->basic_settings_list);
}
static int ov8865_init(struct v4l2_subdev *sd, u32 val)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
int ret;
mutex_lock(&dev->input_lock);
ret = ov8865_init_registers(sd);
mutex_unlock(&dev->input_lock);
return ret;
}
static void ov8865_uninit(struct v4l2_subdev *sd)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
dev->exposure = 0;
dev->gain = 0;
dev->digital_gain = 0;
}
static int power_up(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov8865_device *dev = to_ov8865_sensor(sd);
int ret;
/* Enable power */
ret = dev->platform_data->power_ctrl(sd, 1);
if (ret)
goto fail_power;
/* Release reset */
ret = dev->platform_data->gpio_ctrl(sd, 1);
if (ret)
dev_err(&client->dev, "gpio failed 1\n");
/* Enable clock */
ret = dev->platform_data->flisclk_ctrl(sd, 1);
if (ret)
goto fail_clk;
/* Minumum delay is 8192 clock cycles before first i2c transaction,
* which is 1.37 ms at the lowest allowed clock rate 6 MHz */
usleep_range(2000, 2100);
return 0;
fail_clk:
dev->platform_data->flisclk_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 ov8865_device *dev = to_ov8865_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
ret = dev->platform_data->flisclk_ctrl(sd, 0);
if (ret)
dev_err(&client->dev, "flisclk failed\n");
/* gpio ctrl */
ret = dev->platform_data->gpio_ctrl(sd, 0);
if (ret)
dev_err(&client->dev, "gpio failed 1\n");
/* power control */
ret = dev->platform_data->power_ctrl(sd, 0);
if (ret)
dev_err(&client->dev, "vprog failed.\n");
return ret;
}
static int __ov8865_s_power(struct v4l2_subdev *sd, int on)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
int ret, r;
if (on == 0) {
ov8865_uninit(sd);
/* shunyong: disable VCM for PO */
r = bu64243_power_down(sd);
ret = power_down(sd);
if (ret == 0)
ret = r;
dev->power = 0;
} else {
//printk("ov8865 start power-up");
ret = power_up(sd);
if (ret)
return ret;
/* shunyong: disable VCM for PO */
ret = bu64243_power_up(sd);
if (ret) {
power_down(sd);
return ret;
}
//printk("ov8865 before ov8865_init_registers\n");
ret = ov8865_init_registers(sd);
// printk("ov8865 after ov8865_init_registers\n");
if (ret) {
// printk("ov8865 bu64243_power_down power_down ret = %d\n",ret);
bu64243_power_down(sd);
power_down(sd);
}
dev->power = 1;
}
return ret;
}
static int ov8865_s_power(struct v4l2_subdev *sd, int on)
{
int ret;
struct ov8865_device *dev = to_ov8865_sensor(sd);
mutex_lock(&dev->input_lock);
ret = __ov8865_s_power(sd, on);
mutex_unlock(&dev->input_lock);
/*
* FIXME: Compatibility with old behaviour: return to preview
* when the device is power cycled.
*/
if (!ret && on)
v4l2_ctrl_s_ctrl(dev->run_mode, ATOMISP_RUN_MODE_PREVIEW);
return ret;
}
static int ov8865_g_chip_ident(struct v4l2_subdev *sd,
struct v4l2_dbg_chip_ident *chip)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_OV8865, 0);
return 0;
}
/* Return value of the specified register, first try getting it from
* the register list and if not found, get from the sensor via i2c.
*/
static int ov8865_get_register(struct v4l2_subdev *sd, int reg,
const struct ov8865_reg *reglist)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
const struct ov8865_reg *next;
u16 val;
/* Try if the values is in the register list */
for (next = reglist; next->type != OV8865_TOK_TERM; next++) {
if (next->type != OV8865_8BIT) {
v4l2_err(sd, "only 8-bit registers supported\n");
return -ENXIO;
}
if (next->reg.sreg == reg)
return next->val;
}
/* If not, read from sensor */
if (ov8865_read_reg(client, OV8865_8BIT, reg, &val)) {
v4l2_err(sd, "failed to read register 0x%04X\n", reg);
return -EIO;
}
return val;
}
static int ov8865_get_register_16bit(struct v4l2_subdev *sd, int reg,
const struct ov8865_reg *reglist, unsigned int *value)
{
int high, low;
high = ov8865_get_register(sd, reg, reglist);
if (high < 0)
return high;
low = ov8865_get_register(sd, reg + 1, reglist);
if (low < 0)
return low;
*value = ((u8) high << 8) | (u8) low;
return 0;
}
static int ov8865_get_intg_factor(struct v4l2_subdev *sd,
struct camera_mipi_info *info,
const struct ov8865_reg *reglist)
{
/*shunyong: disable get_intg for PO*/
struct i2c_client *client = v4l2_get_subdevdata(sd);
const int ext_clk = 19200000; /* MHz */
struct atomisp_sensor_mode_data *m = &info->data;
struct ov8865_device *dev = to_ov8865_sensor(sd);
const struct ov8865_resolution *res =
&dev->curr_res_table[dev->fmt_idx];
int pll1_prediv0, pll1_prediv;
int pll1_multiplier;
int pll1_sys_pre_div;
int pll1_sys_divider;
int ret;
u16 val;
memset(&info->data, 0, sizeof(info->data));
pll1_prediv0 = 1; /* 0x0312[4] = 0*/
pll1_prediv = 4; /* 0x030b[2:0] = 5*/
pll1_multiplier = 0x96; /* 0x030c[1:0]=0x0, 0x030d[7:0] = 0x96*/
ov8865_read_reg(client, OV8865_8BIT, PLL1_SYS_PRE_DIV, &val);
pll1_sys_pre_div = 1 + ((int)val);
pll1_sys_divider = 1; /* 0x030e[2:0] = 0x00*/
m->vt_pix_clk_freq_mhz = (ext_clk / (pll1_prediv0 * pll1_prediv * pll1_sys_pre_div * pll1_sys_divider)) * pll1_multiplier;;
/* HTS and VTS */
m->line_length_pck = res->fps_options[dev->fps_index].pixels_per_line;
m->frame_length_lines = res->fps_options[dev->fps_index].lines_per_frame;
m->coarse_integration_time_min = 0;
m->coarse_integration_time_max_margin = OV8865_INTEGRATION_TIME_MARGIN;
/* OV Sensor do not use fine integration time. */
m->fine_integration_time_min = 0;
m->fine_integration_time_max_margin = 0;
/*
* read_mode indicate whether binning is used for calculating
* the correct exposure value from the user side. So adapt the
* read mode values accordingly.
*/
m->read_mode = res->bin_factor_x ?
OV8865_READ_MODE_BINNING_ON : OV8865_READ_MODE_BINNING_OFF;
ret = ov8865_get_register(sd, OV8865_TIMING_X_INC, res->regs);
if (ret < 0)
return ret;
m->binning_factor_x = res->bin_factor_x ? 2 : 1;
ret = ov8865_get_register(sd, OV8865_TIMING_Y_INC, res->regs);
if (ret < 0)
return ret;
m->binning_factor_y = res->bin_factor_y ? 2 : 1;
/* Get the cropping and output resolution to ISP for this mode. */
ret = ov8865_get_register_16bit(sd, OV8865_HORIZONTAL_START_H,
res->regs, &m->crop_horizontal_start);
if (ret)
return ret;
ret = ov8865_get_register_16bit(sd, OV8865_VERTICAL_START_H,
res->regs, &m->crop_vertical_start);
if (ret)
return ret;
ret = ov8865_get_register_16bit(sd, OV8865_HORIZONTAL_OUTPUT_SIZE_H,
res->regs, &m->output_width);
if (ret)
return ret;
m->output_width = m->output_width - ISP_PADDING_W; /*remove ISP padding, real output*/
ret = ov8865_get_register_16bit(sd, OV8865_VERTICAL_OUTPUT_SIZE_H,
res->regs, &m->output_height);
if (ret)
return ret;
m->output_height = m->output_height - ISP_PADDING_H;
/*
* As ov8865 is central crop, we calculate for 3264x2448 to meet IQ/OTP
* requirement
*/
if (res->bin_factor_x) {
/*consider output padding*/
m->crop_horizontal_start = (OV8865_ISP_MAX_WIDTH - ((m->output_width + ISP_PADDING_W) << res->bin_factor_x))/2;
} else {
m->crop_horizontal_start = (OV8865_ISP_MAX_WIDTH - m->output_width)/2;
}
m->crop_horizontal_end = OV8865_ISP_MAX_WIDTH - m->crop_horizontal_start - 1;
if (res->bin_factor_y) {
/*consider output padding*/
m->crop_vertical_start = (OV8865_ISP_MAX_HEIGHT - ((m->output_height + ISP_PADDING_H) << res->bin_factor_y))/2;
} else {
m->crop_vertical_start = (OV8865_ISP_MAX_HEIGHT - m->output_height )/2;
}
m->crop_vertical_end = OV8865_ISP_MAX_HEIGHT - m->crop_vertical_start - 1;
if(debug & DEBUG_INTG_FACT) {
OV8865_LOG(2, "%s %d vt_pix_clk_freq_mhz:%d line_length_pck:%d frame_length_lines:%d\n", __func__, __LINE__,
m->vt_pix_clk_freq_mhz, m->line_length_pck, m->frame_length_lines);
OV8865_LOG(2, "%s %d coarse_intg_min:%d coarse_intg_max_margin:%d fine_intg_min:%d fine_intg_max_margin:%d\n",
__func__, __LINE__,
m->coarse_integration_time_min, m->coarse_integration_time_max_margin,
m->fine_integration_time_min, m->fine_integration_time_max_margin);
OV8865_LOG(2, "%s %d crop_x_start:%d crop_y_start:%d crop_x_end:%d crop_y_end:%d \n", __func__, __LINE__,
m->crop_horizontal_start, m->crop_vertical_start, m->crop_horizontal_end, m->crop_vertical_end);
OV8865_LOG(2, "%s %d output_width:%d output_height:%d\n", __func__, __LINE__, m->output_width, m->output_height);
}
return 0;
}
#if 0
static int __ov8865_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
/* shunyong disabel s_frame_interval for PO */
#if 0
struct ov8865_device *dev = to_ov8865_sensor(sd);
struct camera_mipi_info *info = v4l2_get_subdev_hostdata(sd);
const struct ov8865_resolution *res =
res = &dev->curr_res_table[dev->fmt_idx];
int i;
int ret;
int fps;
u16 hts;
u16 vts;
if (!interval->interval.numerator)
interval->interval.numerator = 1;
fps = interval->interval.denominator / interval->interval.numerator;
/* Ignore if we are already using the required FPS. */
if (fps == res->fps_options[dev->fps_index].fps)
return 0;
dev->fps_index = 0;
/* Go through the supported FPS list */
for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
if (!res->fps_options[i].fps)
break;
if (abs(res->fps_options[i].fps - fps)
< abs(res->fps_options[dev->fps_index].fps - fps))
dev->fps_index = i;
}
/* Get the new Frame timing values for new exposure */
hts = res->fps_options[dev->fps_index].pixels_per_line;
vts = res->fps_options[dev->fps_index].lines_per_frame;
/* update frametiming. Conside the curren exposure/gain as well */
ret = __ov8865_set_exposure(sd, dev->exposure, dev->gain,
dev->digital_gain, &hts, &vts);
if (ret)
return ret;
/* Update the new values so that user side knows the current settings */
ret = ov8865_get_intg_factor(sd, info, dev->basic_settings_list);
if (ret)
return ret;
interval->interval.denominator = res->fps_options[dev->fps_index].fps;
interval->interval.numerator = 1;
#endif
return 0;
}
#endif
/*
* 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.
*/
/* tune this value so that the DVS resolutions get selected properly,
* but make sure 16:9 does not match 4:3.
*/
#define LARGEST_ALLOWED_RATIO_MISMATCH 500
static int distance(struct ov8865_resolution const *res, const u32 w,
const u32 h)
{
unsigned int w_ratio = ((res->width<<13)/w);
unsigned int h_ratio = ((res->height<<13)/h);
int 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;
}
/*
* Returns the nearest higher resolution index.
* @w: width
* @h: height
* matching is done based on enveloping resolution and
* aspect ratio. If the aspect ratio cannot be matched
* to any index, -1 is returned.
*/
static int nearest_resolution_index(struct v4l2_subdev *sd, int w, int h)
{
int i;
int idx = -1;
int dist;
int min_dist = INT_MAX;
const struct ov8865_resolution *tmp_res = NULL;
struct ov8865_device *dev = to_ov8865_sensor(sd);
printk("-%lx %lx w:%d h:%d\r\n", (unsigned long)dev->curr_res_table, (unsigned long )ov8865_res_preview, w, h);
if ((dev->curr_res_table == ov8865_res_preview)||
(dev->curr_res_table == ov8865_res_still)) {
if ((((w == 1332) && (h == 1092))) ||
(((w == 1320) && (h == 1080)))||(((w == 1280) &&(h == 720))) ||
(((w == 1292) &&(h == 732))) ||
(((w == 1024) &&(h == 576))) || (((w == 1036) &&(h == 588)))||
(((w == 720) &&(h == 480))) || (((w == 732) &&(h == 492)))||
(((w == 640) &&(h == 360))) || (((w == 652) &&(h == 372)))||
(((w == 320) &&(h == 180))) || (((w == 332) &&(h == 192)))){
w = 1632;
h = 1224;
}
if((((w == 1920) &&(h == 1080))) || (((w == 1932) &&(h == 1092)))){
w = 1936;
h = 1096;
}
}
if ((dev->curr_res_table == ov8865_res_still)) {
if ((((w == 176) && (h == 144))) ||
(((w == 188) && (h == 156)))){
w = 1632;
h = 1224;
}
}
#if 0
printk("%lx %lx w:%d h:%d\r\n", (unsigned long)dev->curr_res_table, (unsigned long )ov8865_res_preview, w, h);
if ((dev->curr_res_table == ov8865_res_preview)||
(dev->curr_res_table == ov8865_res_still)) {
if ((((w == 1332) && (h == 1092))) ||
(((w == 1320) && (h == 1080)))){
w = 1632;
h = 1224;
}
}
if ((dev->curr_res_table == ov8865_res_still)) {
if ((((w == 176) && (h == 144))) ||
(((w == 188) && (h == 156)))){
w = 1632;
h = 1224;
}
}
#endif
for (i = 0; i < dev->entries_curr_table; i++) {
tmp_res = &dev->curr_res_table[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(struct v4l2_subdev *sd, int w, int h)
{
int i;
struct ov8865_device *dev = to_ov8865_sensor(sd);
for (i = 0; i < dev->entries_curr_table; i++) {
if (w != dev->curr_res_table[i].width)
continue;
if (h != dev->curr_res_table[i].height)
continue;
/* Found it */
return i;
}
return -1;
}
static int __ov8865_try_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
int idx;
struct ov8865_device *dev = to_ov8865_sensor(sd);
if (!fmt)
return -EINVAL;
if ((fmt->width > OV8865_RES_WIDTH_MAX) ||
(fmt->height > OV8865_RES_HEIGHT_MAX)) {
fmt->width = OV8865_RES_WIDTH_MAX;
fmt->height = OV8865_RES_HEIGHT_MAX;
} else {
idx = nearest_resolution_index(sd, fmt->width, fmt->height);
/*
* nearest_resolution_index() doesn't return smaller resolutions.
* If it fails, it means the requested resolution is higher than we
* can support. Fallback to highest possible resolution in this case.
*/
if (idx == -1)
idx = dev->entries_curr_table - 1;
fmt->width = dev->curr_res_table[idx].width;
fmt->height = dev->curr_res_table[idx].height;
}
fmt->code = V4L2_MBUS_FMT_SBGGR10_1X10;
return 0;
}
static int ov8865_try_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
int r;
mutex_lock(&dev->input_lock);
r = __ov8865_try_mbus_fmt(sd, fmt);
mutex_unlock(&dev->input_lock);
return r;
}
static int ov8865_s_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
struct camera_mipi_info *ov8865_info = NULL;
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 hts, vts;
int ret;
const struct ov8865_resolution *res;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
ov8865_info = v4l2_get_subdev_hostdata(sd);
if (ov8865_info == NULL)
return -EINVAL;
mutex_lock(&dev->input_lock);
ret = __ov8865_try_mbus_fmt(sd, fmt);
if (ret)
goto out;
dev->fmt_idx = get_resolution_index(sd, fmt->width, fmt->height);
/* Sanity check */
if (unlikely(dev->fmt_idx == -1)) {
ret = -EINVAL;
goto out;
}
/* Sets the default FPS */
dev->fps_index = 0;
/* Get the current resolution setting */
res = &dev->curr_res_table[dev->fmt_idx];
/* Write the selected resolution table values to the registers */
ret = ov8865_write_reg_array(client, res->regs);
if (ret)
goto out;
OV8865_LOG(2, "%s %d name:%s width:%d height:%d\n", __func__, __LINE__, res->desc, res->width, res->height);
/* Frame timing registers are updates as part of exposure */
hts = res->fps_options[dev->fps_index].pixels_per_line;
vts = res->fps_options[dev->fps_index].lines_per_frame;
/*
* update hts, vts, exposure and gain as one block. Note that the vts
* will be changed according to the exposure used. But the maximum vts
* dev->curr_res_table[dev->fmt_idx] should not be changed at all.
*/
ret = __ov8865_set_exposure(sd, dev->exposure, dev->gain,
dev->digital_gain, &hts, &vts);
if (ret)
goto out;
ret = ov8865_get_intg_factor(sd, ov8865_info, dev->basic_settings_list);
out:
mutex_unlock(&dev->input_lock);
return ret;
}
static int ov8865_g_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
if (!fmt)
return -EINVAL;
mutex_lock(&dev->input_lock);
fmt->width = dev->curr_res_table[dev->fmt_idx].width;
fmt->height = dev->curr_res_table[dev->fmt_idx].height;
fmt->code = V4L2_MBUS_FMT_SBGGR10_1X10;
mutex_unlock(&dev->input_lock);
return 0;
}
static int ov8865_detect(struct i2c_client *client, u16 *id, u8 *revision)
{
struct i2c_adapter *adapter = client->adapter;
int ret;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
/* i2c check */
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
return -ENODEV;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
/* check sensor chip ID - are same for both 8865 and 8835 modules */
ret = ov8865_read_reg(client, OV8865_16BIT, OV8865_CHIP_ID_HIGH, id);
dev_info(&client->dev, "chip_id = 0x%4.4x\n", *id);
if (ret)
return ret;
OV8865_LOG(1, "%s %d\n", __func__, __LINE__);
/* This always reads as 0x8865, even on 8835. */
dev_info(&client->dev, "chip_id = 0x%4.4x\n", *id);
if (*id != OV8865_CHIP_ID)
return -ENODEV;
return 0;
}
/*
* ov8865 stream on/off
*/
static int ov8865_s_stream(struct v4l2_subdev *sd, int enable)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
mutex_lock(&dev->input_lock);
//printk("ov8865, ov8865_s_stream, before ov8865_write_reg\n");
ret = ov8865_write_reg(client, OV8865_8BIT, 0x0100, enable ? 1 : 0);
if (ret != 0) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "failed to set streaming\n");
// printk("failed to set streaming\n");
return ret;
}
dev->streaming = enable;
mutex_unlock(&dev->input_lock);
return 0;
}
/*
* ov8865 enum frame size, frame intervals
*/
static int ov8865_enum_framesizes(struct v4l2_subdev *sd,
struct v4l2_frmsizeenum *fsize)
{
unsigned int index = fsize->index;
struct ov8865_device *dev = to_ov8865_sensor(sd);
mutex_lock(&dev->input_lock);
if (index >= dev->entries_curr_table) {
mutex_unlock(&dev->input_lock);
return -EINVAL;
}
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
fsize->discrete.width = dev->curr_res_table[index].width;
fsize->discrete.height = dev->curr_res_table[index].height;
fsize->reserved[0] = dev->curr_res_table[index].used;
mutex_unlock(&dev->input_lock);
return 0;
}
static int ov8865_enum_frameintervals(struct v4l2_subdev *sd,
struct v4l2_frmivalenum *fival)
{
unsigned int index = fival->index;
int fmt_index;
struct ov8865_device *dev = to_ov8865_sensor(sd);
const struct ov8865_resolution *res;
mutex_lock(&dev->input_lock);
/*
* since the isp will donwscale the resolution to the right size,
* find the nearest one that will allow the isp to do so important to
* ensure that the resolution requested is padded correctly by the
* requester, which is the atomisp driver in this case.
*/
fmt_index = nearest_resolution_index(sd, fival->width, fival->height);
if (-1 == fmt_index)
fmt_index = dev->entries_curr_table - 1;
res = &dev->curr_res_table[fmt_index];
/* Check if this index is supported */
if (index > __ov8865_get_max_fps_index(res->fps_options)) {
mutex_unlock(&dev->input_lock);
return -EINVAL;
}
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
fival->discrete.numerator = 1;
fival->discrete.denominator = res->fps_options[index].fps;
mutex_unlock(&dev->input_lock);
return 0;
}
static int ov8865_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 ov8865_s_config(struct v4l2_subdev *sd,
int irq, void *pdata)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 sensor_revision = 0;
u16 sensor_id;
int ret;
// OV8865_LOG(2, "%s %d pdata=%x\n", __func__, __LINE__, (unsigned int)pdata);
if (pdata == NULL)
return -ENODEV;
dev->platform_data = pdata;
mutex_lock(&dev->input_lock);
if (dev->platform_data->platform_init) {
ret = dev->platform_data->platform_init(client);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "ov8865 platform init err\n");
return ret;
}
}
OV8865_LOG(1, "%s %d ov8865 platform_init done\n", __func__, __LINE__);
//printk(" ov8865 platform_init done\n");
ret = __ov8865_s_power(sd, 1);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "ov8865 power-up err.\n");
return ret;
}
OV8865_LOG(1, "%s %d ov8865 s_power done\n", __func__, __LINE__);
dev->otp_data = NULL;
//ret = request_firmware(&fw, OV8865_OTP_INPUT_NAME, &client->dev);
//if (ret) {
OV8865_LOG(2,"ov8865 load from user-space failed, load from sensor\n");
ov8865_write_reg(client, OV8865_8BIT, 0x5002, 0x00);
ov8865_write_reg(client, OV8865_8BIT, 0x0100, 0x01);
ret = ov8865_otp_read(client, ov8865_raw, &ov8865_raw_size);
ov8865_write_reg(client, OV8865_8BIT, 0x5002, 0x08);
ov8865_write_reg(client, OV8865_8BIT, 0x0100, 0x00);
if (!ret) {
//printk("ov8865 otp read done\n");
ret = ov8865_otp_trans(ov8865_raw, ov8865_raw_size, ov8865_otp_data, &ov8865_otp_size);
if (!ret) {
// printk("ov8865 otp trans done\n");
dev->otp_data = ov8865_otp_data;
} else
printk("ov8865 otp trans failed\n");
}
//} else {
// OV8865_LOG(2, "ov8865 load from user-space success size:0x%x\n", fw->size);
// memcpy(ov8865_raw, fw->data, fw->size);
// ov8865_raw_size = fw->size;
// ret = ov8865_otp_trans(ov8865_raw, ov8865_raw_size, ov8865_otp_data, &ov8865_otp_size);
// if (!ret) {
// OV8865_LOG(2, "ov8865 otp trans done\n");
// dev->otp_data = ov8865_otp_data;
// } else
// OV8865_LOG(2, "ov8865 otp trans failed\n");
//}
ret = dev->platform_data->csi_cfg(sd, 1);
if (ret)
goto fail_csi_cfg;
OV8865_LOG(1, "%s %d ov8865 csi_cfg done\n", __func__, __LINE__);
/* config & detect sensor */
ret = ov8865_detect(client, &sensor_id, &sensor_revision);
if (ret) {
v4l2_err(client, "ov8865_detect err s_config.\n");
goto fail_detect;
}
OV8865_LOG(1, "%s %d ov8865 detect done\n", __func__, __LINE__);
dev->sensor_id = sensor_id;
dev->sensor_revision = sensor_revision;
/* power off sensor */
ret = __ov8865_s_power(sd, 0);
mutex_unlock(&dev->input_lock);
if (ret) {
v4l2_err(client, "ov8865 power-down err.\n");
return ret;
}
OV8865_LOG(1, "%s %d ov8865 s_config successfully\n", __func__, __LINE__);
return 0;
fail_detect:
dev->platform_data->csi_cfg(sd, 0);
fail_csi_cfg:
__ov8865_s_power(sd, 0);
mutex_unlock(&dev->input_lock);
dev_err(&client->dev, "sensor power-gating failed\n");
return ret;
}
static int
ov8865_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index)
return -EINVAL;
code->code = V4L2_MBUS_FMT_SBGGR10_1X10;
return 0;
}
static int
ov8865_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse)
{
int index = fse->index;
struct ov8865_device *dev = to_ov8865_sensor(sd);
mutex_lock(&dev->input_lock);
if (index >= dev->entries_curr_table) {
mutex_unlock(&dev->input_lock);
return -EINVAL;
}
fse->min_width = dev->curr_res_table[index].width;
fse->min_height = dev->curr_res_table[index].height;
fse->max_width = dev->curr_res_table[index].width;
fse->max_height = dev->curr_res_table[index].height;
mutex_unlock(&dev->input_lock);
return 0;
}
static struct v4l2_mbus_framefmt *
__ov8865_get_pad_format(struct ov8865_device *sensor,
struct v4l2_subdev_fh *fh, unsigned int pad,
enum v4l2_subdev_format_whence which)
{
if (which == V4L2_SUBDEV_FORMAT_TRY)
return v4l2_subdev_get_try_format(fh, pad);
return &sensor->format;
}
static int
ov8865_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
fmt->format = *__ov8865_get_pad_format(dev, fh, fmt->pad, fmt->which);
return 0;
}
static int
ov8865_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
struct v4l2_mbus_framefmt *format =
__ov8865_get_pad_format(dev, fh, fmt->pad, fmt->which);
*format = fmt->format;
return 0;
}
static int ov8865_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct ov8865_device *dev = container_of(
ctrl->handler, struct ov8865_device, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
/* input_lock is taken by the control framework, so it
* doesn't need to be taken here.
*/
/* We only handle V4L2_CID_RUN_MODE for now. */
switch (ctrl->id) {
case V4L2_CID_RUN_MODE:
switch (ctrl->val) {
case ATOMISP_RUN_MODE_VIDEO:
dev->curr_res_table = ov8865_res_video;
dev->entries_curr_table = ARRAY_SIZE(ov8865_res_video);
break;
case ATOMISP_RUN_MODE_STILL_CAPTURE:
dev->curr_res_table = ov8865_res_still;
dev->entries_curr_table = ARRAY_SIZE(ov8865_res_still);
break;
default:
dev->curr_res_table = ov8865_res_preview;
dev->entries_curr_table = ARRAY_SIZE(ov8865_res_preview);
}
dev->fmt_idx = 0;
dev->fps_index = 0;
return 0;
case V4L2_CID_TEST_PATTERN:
return ov8865_write_reg(client, OV8865_16BIT, 0x3070,
ctrl->val);
/* shunyong: disable focus when PO */
case V4L2_CID_FOCUS_ABSOLUTE:
return bu64243_t_focus_abs(&dev->sd, ctrl->val);
}
return -EINVAL; /* Should not happen. */
}
static int ov8865_g_ctrl(struct v4l2_ctrl *ctrl)
{
struct ov8865_device *dev = container_of(
ctrl->handler, struct ov8865_device, ctrl_handler);
switch (ctrl->id) {
/* shunyong, disable Focus when PO */
case V4L2_CID_FOCUS_STATUS: {
static const struct timespec move_time = {
/* The time required for focus motor to move the lens */
.tv_sec = 0,
.tv_nsec = 60000000,
};
struct bu64243_device *bu64243 = to_bu64243_device(&dev->sd);
struct timespec current_time, finish_time, delta_time;
getnstimeofday(&current_time);
finish_time = timespec_add(bu64243->focus_time, move_time);
delta_time = timespec_sub(current_time, finish_time);
if (delta_time.tv_sec >= 0 && delta_time.tv_nsec >= 0) {
/* VCM motor is not moving */
ctrl->val = ATOMISP_FOCUS_HP_COMPLETE |
ATOMISP_FOCUS_STATUS_ACCEPTS_NEW_MOVE;
} else {
/* VCM motor is still moving */
ctrl->val = ATOMISP_FOCUS_STATUS_MOVING |
ATOMISP_FOCUS_HP_IN_PROGRESS;
}
return 0;
}
break;
case V4L2_CID_EXPOSURE_ABSOLUTE:
ctrl->val = exposure_time;
return 0;
case V4L2_CID_BIN_FACTOR_HORZ:
case V4L2_CID_BIN_FACTOR_VERT: {
ctrl->val = ctrl->id == V4L2_CID_BIN_FACTOR_HORZ ?
dev->curr_res_table[dev->fmt_idx].bin_factor_x: dev->curr_res_table[dev->fmt_idx].bin_factor_y;
OV8865_LOG(1, "bin-factor for ISP:%d\n", ctrl->val);
return 0;
}
}
return 0;
}
static int
ov8865_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
const struct ov8865_resolution *res;
mutex_lock(&dev->input_lock);
/* Return the currently selected settings' maximum frame interval */
res = &dev->curr_res_table[dev->fmt_idx];
interval->interval.numerator = 1;
interval->interval.denominator = res->fps_options[dev->fps_index].fps;
mutex_unlock(&dev->input_lock);
return 0;
}
#if 0
static int ov8865_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
int ret;
mutex_lock(&dev->input_lock);
ret = __ov8865_s_frame_interval(sd, interval);
mutex_unlock(&dev->input_lock);
return ret;
}
#endif
static int ov8865_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
{
struct ov8865_device *dev = to_ov8865_sensor(sd);
mutex_lock(&dev->input_lock);
*frames = dev->curr_res_table[dev->fmt_idx].skip_frames;
mutex_unlock(&dev->input_lock);
return 0;
}
static const struct v4l2_subdev_video_ops ov8865_video_ops = {
.s_stream = ov8865_s_stream,
.enum_framesizes = ov8865_enum_framesizes,
.enum_frameintervals = ov8865_enum_frameintervals,
.enum_mbus_fmt = ov8865_enum_mbus_fmt,
.try_mbus_fmt = ov8865_try_mbus_fmt,
.g_mbus_fmt = ov8865_g_mbus_fmt,
.s_mbus_fmt = ov8865_s_mbus_fmt,
.g_frame_interval = ov8865_g_frame_interval,
//.s_frame_interval = ov8865_s_frame_interval,
};
static const struct v4l2_subdev_sensor_ops ov8865_sensor_ops = {
.g_skip_frames = ov8865_g_skip_frames,
};
static const struct v4l2_subdev_core_ops ov8865_core_ops = {
.g_chip_ident = ov8865_g_chip_ident,
.queryctrl = v4l2_subdev_queryctrl,
.g_ctrl = v4l2_subdev_g_ctrl,
.s_ctrl = v4l2_subdev_s_ctrl,
.s_power = ov8865_s_power,
.ioctl = ov8865_ioctl,
.init = ov8865_init,
};
/* REVISIT: Do we need pad operations? */
static const struct v4l2_subdev_pad_ops ov8865_pad_ops = {
.enum_mbus_code = ov8865_enum_mbus_code,
.enum_frame_size = ov8865_enum_frame_size,
.get_fmt = ov8865_get_pad_format,
.set_fmt = ov8865_set_pad_format,
};
static const struct v4l2_subdev_ops ov8865_ops = {
.core = &ov8865_core_ops,
.video = &ov8865_video_ops,
.pad = &ov8865_pad_ops,
.sensor = &ov8865_sensor_ops,
};
static int ov8865_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov8865_device *dev = to_ov8865_sensor(sd);
if (dev->platform_data->platform_deinit)
dev->platform_data->platform_deinit();
media_entity_cleanup(&dev->sd.entity);
v4l2_ctrl_handler_free(&dev->ctrl_handler);
dev->platform_data->csi_cfg(sd, 0);
v4l2_device_unregister_subdev(sd);
kfree(dev);
return 0;
}
static const struct v4l2_ctrl_ops ctrl_ops = {
.s_ctrl = ov8865_s_ctrl,
.g_volatile_ctrl = ov8865_g_ctrl,
};
static const char * const ctrl_run_mode_menu[] = {
NULL,
"Video",
"Still capture",
"Continuous capture",
"Preview",
};
static const struct v4l2_ctrl_config ctrl_run_mode = {
.ops = &ctrl_ops,
.id = V4L2_CID_RUN_MODE,
.name = "run mode",
.type = V4L2_CTRL_TYPE_MENU,
.min = 1,
.def = 4,
.max = 4,
.qmenu = ctrl_run_mode_menu,
};
static const struct v4l2_ctrl_config ctrls[] = {
{
.ops = &ctrl_ops,
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.max = 0xffff,
.step = 0x01,
.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_VOLATILE,
}, {
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN,
.name = "Test pattern",
.type = V4L2_CTRL_TYPE_INTEGER,
.step = 1,
.max = 0xffff,
}, {
.ops = &ctrl_ops,
.id = V4L2_CID_FOCUS_ABSOLUTE,
.name = "Focus absolute",
.type = V4L2_CTRL_TYPE_INTEGER,
.step = 1,
.max = BU64243_MAX_FOCUS_POS,
}, {
/* This one is junk: see the spec for proper use of this CID. */
.ops = &ctrl_ops,
.id = V4L2_CID_FOCUS_STATUS,
.name = "Focus status",
.type = V4L2_CTRL_TYPE_INTEGER,
.step = 1,
.max = 100,
.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_VOLATILE,
}, {
/* This is crap. For compatibility use only. */
.ops = &ctrl_ops,
.id = V4L2_CID_FOCAL_ABSOLUTE,
.name = "Focal lenght",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = (OV8865_FOCAL_LENGTH_NUM << 16) | OV8865_FOCAL_LENGTH_DEM,
.max = (OV8865_FOCAL_LENGTH_NUM << 16) | OV8865_FOCAL_LENGTH_DEM,
.step = 1,
.def = (OV8865_FOCAL_LENGTH_NUM << 16) | OV8865_FOCAL_LENGTH_DEM,
.flags = V4L2_CTRL_FLAG_READ_ONLY,
}, {
/* This one is crap, too. For compatibility use only. */
.ops = &ctrl_ops,
.id = V4L2_CID_FNUMBER_ABSOLUTE,
.name = "F-number",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = (OV8865_F_NUMBER_DEFAULT_NUM << 16) | OV8865_F_NUMBER_DEM,
.max = (OV8865_F_NUMBER_DEFAULT_NUM << 16) | OV8865_F_NUMBER_DEM,
.step = 1,
.def = (OV8865_F_NUMBER_DEFAULT_NUM << 16) | OV8865_F_NUMBER_DEM,
.flags = V4L2_CTRL_FLAG_READ_ONLY,
}, {
/*
* The most utter crap. _Never_ use this, even for
* compatibility reasons!
*/
.ops = &ctrl_ops,
.id = V4L2_CID_FNUMBER_RANGE,
.name = "F-number range",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = (OV8865_F_NUMBER_DEFAULT_NUM << 24) | (OV8865_F_NUMBER_DEM << 16) | (OV8865_F_NUMBER_DEFAULT_NUM << 8) | OV8865_F_NUMBER_DEM,
.max = (OV8865_F_NUMBER_DEFAULT_NUM << 24) | (OV8865_F_NUMBER_DEM << 16) | (OV8865_F_NUMBER_DEFAULT_NUM << 8) | OV8865_F_NUMBER_DEM,
.step = 1,
.def = (OV8865_F_NUMBER_DEFAULT_NUM << 24) | (OV8865_F_NUMBER_DEM << 16) | (OV8865_F_NUMBER_DEFAULT_NUM << 8) | OV8865_F_NUMBER_DEM,
.flags = V4L2_CTRL_FLAG_READ_ONLY,
}, {
.ops = &ctrl_ops,
.id = V4L2_CID_BIN_FACTOR_HORZ,
.name = "Horizontal binning factor",
.type = V4L2_CTRL_TYPE_INTEGER,
.max = OV8865_BIN_FACTOR_MAX,
.step = 1,
.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_VOLATILE,
}, {
.ops = &ctrl_ops,
.id = V4L2_CID_BIN_FACTOR_VERT,
.name = "Vertical binning factor",
.type = V4L2_CTRL_TYPE_INTEGER,
.max = OV8865_BIN_FACTOR_MAX,
.step = 1,
.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_VOLATILE,
}
};
static int ov8865_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct ov8865_device *dev;
unsigned int i;
int ret;
OV8865_LOG(2, "%s %d start\n", __func__, __LINE__);
//printk("ov8865 start\n");
/* allocate sensor device & init sub device */
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
v4l2_err(client, "%s: out of memory\n", __func__);
//printk("ov8865 out of memory\n");
return -ENOMEM;
}
/* shunyong, disable focus when PO */
mutex_init(&dev->input_lock);
dev->fmt_idx = 0;
v4l2_i2c_subdev_init(&(dev->sd), client, &ov8865_ops);
ret = bu64243_init(&dev->sd);
if (ret < 0)
goto out_free;
OV8865_LOG(1, "%s %d vcm done\n", __func__, __LINE__);
//printk("ov8865 vcm done\n");
if (client->dev.platform_data) {
//printk("ov8865 dev.platform_data\n");
ret = ov8865_s_config(&dev->sd, client->irq,
client->dev.platform_data);
//printk("ov8865 end ov8865_s_config\n");
if (ret) {
//printk("ov8865 out_free\n");
goto out_free;
}
}
OV8865_LOG(1, "%s %d s_config done\n", __func__, __LINE__);
//printk("ov8865 s_config done\n");
dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
dev->pad.flags = MEDIA_PAD_FL_SOURCE;
dev->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
dev->format.code = V4L2_MBUS_FMT_SBGGR10_1X10;
ret = v4l2_ctrl_handler_init(&dev->ctrl_handler, ARRAY_SIZE(ctrls) + 1);
if (ret) {
ov8865_remove(client);
return ret;
}
OV8865_LOG(1, "%s %d handle init done\n", __func__, __LINE__);
//printk("ov8865 handle init done\n");
dev->run_mode = v4l2_ctrl_new_custom(&dev->ctrl_handler,
&ctrl_run_mode, NULL);
for (i = 0; i < ARRAY_SIZE(ctrls); i++)
v4l2_ctrl_new_custom(&dev->ctrl_handler, &ctrls[i], NULL);
if (dev->ctrl_handler.error) {
ov8865_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;
v4l2_ctrl_handler_setup(&dev->ctrl_handler);
OV8865_LOG(1, "%s %d ctrl added\n", __func__, __LINE__);
//printk("ov8865 ctrl added\n");
ret = media_entity_init(&dev->sd.entity, 1, &dev->pad, 0);
if (ret) {
ov8865_remove(client);
return ret;
}
global_dev = dev;
OV8865_LOG(2, "%s %d done\n", __func__, __LINE__);
//printk("ov8865 done\n");
return 0;
out_free:
OV8865_LOG(1, "%s %d fail, free\n", __func__, __LINE__);
//printk("ov8865 fail, free\n");
v4l2_device_unregister_subdev(&dev->sd);
kfree(dev);
return ret;
}
static const struct i2c_device_id ov8865_id[] = {
{OV8865_NAME, 0},
{}
};
MODULE_DEVICE_TABLE(i2c, ov8865_id);
static struct i2c_driver ov8865_driver = {
.driver = {
.owner = THIS_MODULE,
.name = OV8865_NAME,
},
.probe = ov8865_probe,
.remove = ov8865_remove,
.id_table = ov8865_id,
};
static __init int ov8865_init_mod(void)
{
OV8865_LOG(2, "%s %d\n", __func__, __LINE__);
return i2c_add_driver(&ov8865_driver);
}
static __exit void ov8865_exit_mod(void)
{
OV8865_LOG(2, "%s %d\n", __func__, __LINE__);
i2c_del_driver(&ov8865_driver);
}
module_init(ov8865_init_mod);
module_exit(ov8865_exit_mod);
MODULE_DESCRIPTION("A low-level driver for Omnivision OV8865 sensors");
MODULE_LICENSE("GPL");
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