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nest-open-source / manifest_repos / valens / ac4b38144396bc200ba0e7f4a1f6a200996706d1 / . / drivers / staging / media / atomisp / i2c / imx / imx.c
blob: 49ab0af870967b8fe9e3f67a394d61733518d1bc [file] [log] [blame]
/*
* Support for Sony imx 8MP camera sensor.
*
* Copyright (c) 2012 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 <asm/intel-mid.h>
#include "../../include/linux/atomisp_platform.h"
#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include "../../include/linux/libmsrlisthelper.h"
#include <linux/mm.h>
#include <linux/kmod.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include "imx.h"
/*
* The imx135 embedded data info:
* embedded data line num: 2
* line 0 effective data size(byte): 76
* line 1 effective data size(byte): 113
*/
static const uint32_t
imx135_embedded_effective_size[IMX135_EMBEDDED_DATA_LINE_NUM]
= {76, 113};
static enum atomisp_bayer_order imx_bayer_order_mapping[] = {
atomisp_bayer_order_rggb,
atomisp_bayer_order_grbg,
atomisp_bayer_order_gbrg,
atomisp_bayer_order_bggr
};
static const unsigned int
IMX227_BRACKETING_LUT_FRAME_ENTRY[IMX_MAX_AE_LUT_LENGTH] = {
0x0E10, 0x0E1E, 0x0E2C, 0x0E3A, 0x0E48};
static int
imx_read_reg(struct i2c_client *client, u16 len, u16 reg, u16 *val)
{
struct i2c_msg msg[2];
u16 data[IMX_SHORT_MAX];
int ret, i;
int retry = 0;
if (len > IMX_BYTE_MAX) {
dev_err(&client->dev, "%s error, invalid data length\n",
__func__);
return -EINVAL;
}
do {
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;
ret = i2c_transfer(client->adapter, msg, 2);
if (ret != 2) {
dev_err(&client->dev,
"retrying i2c read from offset 0x%x error %d... %d\n",
reg, ret, retry);
msleep(20);
}
} while (ret != 2 && retry++ < I2C_RETRY_COUNT);
if (ret != 2)
return -EIO;
/* high byte comes first */
if (len == IMX_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;
}
static int imx_i2c_write(struct i2c_client *client, u16 len, u8 *data)
{
struct i2c_msg msg;
int ret;
int retry = 0;
do {
msg.addr = client->addr;
msg.flags = 0;
msg.len = len;
msg.buf = data;
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret != 1) {
dev_err(&client->dev,
"retrying i2c write transfer... %d\n", retry);
msleep(20);
}
} while (ret != 1 && retry++ < I2C_RETRY_COUNT);
return ret == 1 ? 0 : -EIO;
}
int
imx_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u16 val)
{
int ret;
unsigned char data[4] = {0};
u16 *wreg = (u16 *)data;
const u16 len = data_length + sizeof(u16); /* 16-bit address + data */
if (data_length != IMX_8BIT && data_length != IMX_16BIT) {
v4l2_err(client, "%s error, invalid data_length\n", __func__);
return -EINVAL;
}
/* high byte goes out first */
*wreg = cpu_to_be16(reg);
if (data_length == IMX_8BIT)
data[2] = (u8)(val);
else {
/* IMX_16BIT */
u16 *wdata = (u16 *)&data[2];
*wdata = cpu_to_be16(val);
}
ret = imx_i2c_write(client, len, data);
if (ret)
dev_err(&client->dev,
"write error: wrote 0x%x to offset 0x%x error %d",
val, reg, ret);
return ret;
}
/*
* imx_write_reg_array - Initializes a list of imx 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().
*
* __imx_flush_reg_array, __imx_buf_reg_array() and
* __imx_write_reg_is_consecutive() are internal functions to
* imx_write_reg_array_fast() and should be not used anywhere else.
*
*/
static int __imx_flush_reg_array(struct i2c_client *client,
struct imx_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;
return imx_i2c_write(client, size, (u8 *)&ctrl->buffer);
}
static int __imx_buf_reg_array(struct i2c_client *client,
struct imx_write_ctrl *ctrl,
const struct imx_reg *next)
{
int size;
u16 *data16;
switch (next->type) {
case IMX_8BIT:
size = 1;
ctrl->buffer.data[ctrl->index] = (u8)next->val;
break;
case IMX_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->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) >= IMX_MAX_WRITE_BUF_SIZE)
return __imx_flush_reg_array(client, ctrl);
return 0;
}
static int
__imx_write_reg_is_consecutive(struct i2c_client *client,
struct imx_write_ctrl *ctrl,
const struct imx_reg *next)
{
if (ctrl->index == 0)
return 1;
return ctrl->buffer.addr + ctrl->index == next->sreg;
}
static int imx_write_reg_array(struct i2c_client *client,
const struct imx_reg *reglist)
{
const struct imx_reg *next = reglist;
struct imx_write_ctrl ctrl;
int err;
ctrl.index = 0;
for (; next->type != IMX_TOK_TERM; next++) {
switch (next->type & IMX_TOK_MASK) {
case IMX_TOK_DELAY:
err = __imx_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 (!__imx_write_reg_is_consecutive(client, &ctrl,
next)) {
err = __imx_flush_reg_array(client, &ctrl);
if (err)
return err;
}
err = __imx_buf_reg_array(client, &ctrl, next);
if (err) {
v4l2_err(client, "%s: write error, aborted\n",
__func__);
return err;
}
break;
}
}
return __imx_flush_reg_array(client, &ctrl);
}
static int __imx_min_fps_diff(int fps, const struct imx_fps_setting *fps_list)
{
int diff = INT_MAX;
int i;
if (fps == 0)
return 0;
for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
if (!fps_list[i].fps)
break;
if (abs(fps_list[i].fps - fps) < diff)
diff = abs(fps_list[i].fps - fps);
}
return diff;
}
static int __imx_nearest_fps_index(int fps,
const struct imx_fps_setting *fps_list)
{
int fps_index = 0;
int i;
for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
if (!fps_list[i].fps)
break;
if (abs(fps_list[i].fps - fps)
< abs(fps_list[fps_index].fps - fps))
fps_index = i;
}
return fps_index;
}
/*
* This is to choose the nearest fps setting above the requested fps
* fps_list should be in ascendant order.
*/
static int __imx_above_nearest_fps_index(int fps,
const struct imx_fps_setting *fps_list)
{
int fps_index = 0;
int i;
for (i = 0; i < MAX_FPS_OPTIONS_SUPPORTED; i++) {
if (!fps_list[i].fps)
break;
if (fps <= fps_list[i].fps) {
fps_index = i;
break;
}
}
return fps_index;
}
static int imx_get_lanes(struct v4l2_subdev *sd)
{
struct camera_mipi_info *imx_info = v4l2_get_subdev_hostdata(sd);
if (!imx_info)
return -ENOSYS;
if (imx_info->num_lanes < 1 || imx_info->num_lanes > 4 ||
imx_info->num_lanes == 3)
return -EINVAL;
return imx_info->num_lanes;
}
static int __imx_update_exposure_timing(struct i2c_client *client, u16 exposure,
u16 llp, u16 fll)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx_device *dev = to_imx_sensor(sd);
int ret = 0;
if (dev->sensor_id != IMX227_ID) {
/* Increase the VTS to match exposure + margin */
if (exposure > fll - IMX_INTEGRATION_TIME_MARGIN)
fll = exposure + IMX_INTEGRATION_TIME_MARGIN;
}
ret = imx_write_reg(client, IMX_16BIT,
dev->reg_addr->line_length_pixels, llp);
if (ret)
return ret;
ret = imx_write_reg(client, IMX_16BIT,
dev->reg_addr->frame_length_lines, fll);
if (ret)
return ret;
if (exposure)
ret = imx_write_reg(client, IMX_16BIT,
dev->reg_addr->coarse_integration_time, exposure);
return ret;
}
static int __imx_update_gain(struct v4l2_subdev *sd, u16 gain)
{
struct imx_device *dev = to_imx_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
/* set global gain */
ret = imx_write_reg(client, IMX_8BIT, dev->reg_addr->global_gain, gain);
if (ret)
return ret;
/* set short analog gain */
if (dev->sensor_id == IMX135_ID)
ret = imx_write_reg(client, IMX_8BIT, IMX_SHORT_AGC_GAIN, gain);
return ret;
}
static int __imx_update_digital_gain(struct i2c_client *client, u16 digitgain)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx_device *dev = to_imx_sensor(sd);
struct imx_write_buffer digit_gain;
digit_gain.addr = cpu_to_be16(dev->reg_addr->dgc_adj);
digit_gain.data[0] = (digitgain >> 8) & 0xFF;
digit_gain.data[1] = digitgain & 0xFF;
if (dev->sensor_id == IMX219_ID) {
return imx_i2c_write(client, IMX219_DGC_LEN, (u8 *)&digit_gain);
} else if (dev->sensor_id == IMX227_ID) {
return imx_i2c_write(client, IMX227_DGC_LEN, (u8 *)&digit_gain);
} else {
digit_gain.data[2] = (digitgain >> 8) & 0xFF;
digit_gain.data[3] = digitgain & 0xFF;
digit_gain.data[4] = (digitgain >> 8) & 0xFF;
digit_gain.data[5] = digitgain & 0xFF;
digit_gain.data[6] = (digitgain >> 8) & 0xFF;
digit_gain.data[7] = digitgain & 0xFF;
return imx_i2c_write(client, IMX_DGC_LEN, (u8 *)&digit_gain);
}
return 0;
}
static int imx_set_exposure_gain(struct v4l2_subdev *sd, u16 coarse_itg,
u16 gain, u16 digitgain)
{
struct imx_device *dev = to_imx_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int lanes = imx_get_lanes(sd);
unsigned int digitgain_scaled;
int ret = 0;
/* Validate exposure: cannot exceed VTS-4 where VTS is 16bit */
coarse_itg = clamp_t(u16, coarse_itg, 0, IMX_MAX_EXPOSURE_SUPPORTED);
/* Validate gain: must not exceed maximum 8bit value */
gain = clamp_t(u16, gain, 0, IMX_MAX_GLOBAL_GAIN_SUPPORTED);
mutex_lock(&dev->input_lock);
if (dev->sensor_id == IMX227_ID) {
ret = imx_write_reg_array(client, imx_param_hold);
if (ret) {
mutex_unlock(&dev->input_lock);
return ret;
}
}
/* For imx175, setting gain must be delayed by one */
if ((dev->sensor_id == IMX175_ID) && dev->digital_gain)
digitgain_scaled = dev->digital_gain;
else
digitgain_scaled = digitgain;
/* imx132 with two lanes needs more gain to saturate at max */
if (dev->sensor_id == IMX132_ID && lanes > 1) {
digitgain_scaled *= IMX132_2LANES_GAINFACT;
digitgain_scaled >>= IMX132_2LANES_GAINFACT_SHIFT;
}
/* Validate digital gain: must not exceed 12 bit value*/
digitgain_scaled = clamp_t(unsigned int, digitgain_scaled,
0, IMX_MAX_DIGITAL_GAIN_SUPPORTED);
ret = __imx_update_exposure_timing(client, coarse_itg,
dev->pixels_per_line, dev->lines_per_frame);
if (ret)
goto out;
dev->coarse_itg = coarse_itg;
if (dev->sensor_id == IMX175_ID)
ret = __imx_update_gain(sd, dev->gain);
else
ret = __imx_update_gain(sd, gain);
if (ret)
goto out;
dev->gain = gain;
ret = __imx_update_digital_gain(client, digitgain_scaled);
if (ret)
goto out;
dev->digital_gain = digitgain;
out:
if (dev->sensor_id == IMX227_ID)
ret = imx_write_reg_array(client, imx_param_update);
mutex_unlock(&dev->input_lock);
return ret;
}
static long imx_s_exposure(struct v4l2_subdev *sd,
struct atomisp_exposure *exposure)
{
return imx_set_exposure_gain(sd, exposure->integration_time[0],
exposure->gain[0], exposure->gain[1]);
}
/* FIXME -To be updated with real OTP reading */
static int imx_g_priv_int_data(struct v4l2_subdev *sd,
struct v4l2_private_int_data *priv)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
u8 __user *to = priv->data;
u32 read_size = priv->size;
int ret;
/* No need to copy data if size is 0 */
if (!read_size)
goto out;
if (IS_ERR(dev->otp_data)) {
dev_err(&client->dev, "OTP data not available");
return PTR_ERR(dev->otp_data);
}
/* Correct read_size value only if bigger than maximum */
if (read_size > dev->otp_driver->size)
read_size = dev->otp_driver->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 = dev->otp_driver->size;
return 0;
}
static int __imx_init(struct v4l2_subdev *sd, u32 val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
int lanes = imx_get_lanes(sd);
int ret;
if (dev->sensor_id == IMX_ID_DEFAULT)
return 0;
/* The default is no flip at sensor initialization */
dev->h_flip->cur.val = 0;
dev->v_flip->cur.val = 0;
/* Sets the default FPS */
dev->fps_index = 0;
dev->curr_res_table = dev->mode_tables->res_preview;
dev->entries_curr_table = dev->mode_tables->n_res_preview;
ret = imx_write_reg_array(client, dev->mode_tables->init_settings);
if (ret)
return ret;
if (dev->sensor_id == IMX132_ID && lanes > 0) {
static const u8 imx132_rglanesel[] = {
IMX132_RGLANESEL_1LANE, /* 1 lane */
IMX132_RGLANESEL_2LANES, /* 2 lanes */
IMX132_RGLANESEL_1LANE, /* undefined */
IMX132_RGLANESEL_4LANES, /* 4 lanes */
};
ret = imx_write_reg(client, IMX_8BIT,
IMX132_RGLANESEL, imx132_rglanesel[lanes - 1]);
}
return ret;
}
static int imx_init(struct v4l2_subdev *sd, u32 val)
{
struct imx_device *dev = to_imx_sensor(sd);
int ret = 0;
mutex_lock(&dev->input_lock);
ret = __imx_init(sd, val);
mutex_unlock(&dev->input_lock);
return ret;
}
static long imx_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
switch (cmd) {
case ATOMISP_IOC_S_EXPOSURE:
return imx_s_exposure(sd, arg);
case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA:
return imx_g_priv_int_data(sd, arg);
default:
return -EINVAL;
}
return 0;
}
static int power_up(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
int ret;
/* power control */
ret = dev->platform_data->power_ctrl(sd, 1);
if (ret)
goto fail_power;
/* flis clock control */
ret = dev->platform_data->flisclk_ctrl(sd, 1);
if (ret)
goto fail_clk;
/* gpio ctrl */
ret = dev->platform_data->gpio_ctrl(sd, 1);
if (ret) {
dev_err(&client->dev, "gpio failed\n");
goto fail_gpio;
}
return 0;
fail_gpio:
dev->platform_data->gpio_ctrl(sd, 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 imx_device *dev = to_imx_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\n");
/* power control */
ret = dev->platform_data->power_ctrl(sd, 0);
if (ret)
dev_err(&client->dev, "vprog failed.\n");
return ret;
}
static int __imx_s_power(struct v4l2_subdev *sd, int on)
{
struct imx_device *dev = to_imx_sensor(sd);
int ret = 0;
int r = 0;
if (on == 0) {
ret = power_down(sd);
if (dev->vcm_driver && dev->vcm_driver->power_down)
r = dev->vcm_driver->power_down(sd);
if (ret == 0)
ret = r;
dev->power = 0;
} else {
if (dev->vcm_driver && dev->vcm_driver->power_up)
ret = dev->vcm_driver->power_up(sd);
if (ret)
return ret;
ret = power_up(sd);
if (!ret) {
dev->power = 1;
return __imx_init(sd, 0);
}
}
return ret;
}
static int imx_s_power(struct v4l2_subdev *sd, int on)
{
int ret;
struct imx_device *dev = to_imx_sensor(sd);
mutex_lock(&dev->input_lock);
ret = __imx_s_power(sd, on);
mutex_unlock(&dev->input_lock);
return ret;
}
static int imx_get_intg_factor(struct i2c_client *client,
struct camera_mipi_info *info,
const struct imx_reg *reglist)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx_device *dev = to_imx_sensor(sd);
int lanes = imx_get_lanes(sd);
u32 vt_pix_clk_div;
u32 vt_sys_clk_div;
u32 pre_pll_clk_div;
u32 pll_multiplier;
const int ext_clk_freq_hz = 19200000;
struct atomisp_sensor_mode_data *buf = &info->data;
int ret;
u16 data[IMX_INTG_BUF_COUNT];
u32 vt_pix_clk_freq_mhz;
u32 coarse_integration_time_min;
u32 coarse_integration_time_max_margin;
u32 read_mode;
u32 div;
if (info == NULL)
return -EINVAL;
memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
ret = imx_read_reg(client, 1, IMX_VT_PIX_CLK_DIV, data);
if (ret)
return ret;
vt_pix_clk_div = data[0] & IMX_MASK_5BIT;
if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID) {
static const int rgpltd[] = { 2, 4, 1, 1 };
ret = imx_read_reg(client, 1, IMX132_208_VT_RGPLTD, data);
if (ret)
return ret;
vt_sys_clk_div = rgpltd[data[0] & IMX_MASK_2BIT];
} else {
ret = imx_read_reg(client, 1, IMX_VT_SYS_CLK_DIV, data);
if (ret)
return ret;
vt_sys_clk_div = data[0] & IMX_MASK_2BIT;
}
ret = imx_read_reg(client, 1, IMX_PRE_PLL_CLK_DIV, data);
if (ret)
return ret;
pre_pll_clk_div = data[0] & IMX_MASK_4BIT;
ret = imx_read_reg(client, 2,
(dev->sensor_id == IMX132_ID ||
dev->sensor_id == IMX219_ID ||
dev->sensor_id == IMX208_ID) ?
IMX132_208_219_PLL_MULTIPLIER : IMX_PLL_MULTIPLIER, data);
if (ret)
return ret;
pll_multiplier = data[0] & IMX_MASK_11BIT;
memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
ret = imx_read_reg(client, 4, IMX_COARSE_INTG_TIME_MIN, data);
if (ret)
return ret;
coarse_integration_time_min = data[0];
coarse_integration_time_max_margin = data[1];
/* Get the cropping and output resolution to ISP for this mode. */
ret = imx_read_reg(client, 2, dev->reg_addr->horizontal_start_h, data);
if (ret)
return ret;
buf->crop_horizontal_start = data[0];
ret = imx_read_reg(client, 2, dev->reg_addr->vertical_start_h, data);
if (ret)
return ret;
buf->crop_vertical_start = data[0];
ret = imx_read_reg(client, 2, dev->reg_addr->horizontal_end_h, data);
if (ret)
return ret;
buf->crop_horizontal_end = data[0];
ret = imx_read_reg(client, 2, dev->reg_addr->vertical_end_h, data);
if (ret)
return ret;
buf->crop_vertical_end = data[0];
ret = imx_read_reg(client, 2,
dev->reg_addr->horizontal_output_size_h, data);
if (ret)
return ret;
buf->output_width = data[0];
ret = imx_read_reg(client, 2,
dev->reg_addr->vertical_output_size_h, data);
if (ret)
return ret;
buf->output_height = data[0];
memset(data, 0, IMX_INTG_BUF_COUNT * sizeof(u16));
if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID ||
dev->sensor_id == IMX219_ID)
read_mode = 0;
else {
if (dev->sensor_id == IMX227_ID)
ret = imx_read_reg(client, 1, IMX227_READ_MODE, data);
else
ret = imx_read_reg(client, 1, IMX_READ_MODE, data);
if (ret)
return ret;
read_mode = data[0] & IMX_MASK_2BIT;
}
div = pre_pll_clk_div*vt_sys_clk_div*vt_pix_clk_div;
if (div == 0)
return -EINVAL;
if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID)
vt_pix_clk_freq_mhz = ext_clk_freq_hz / div;
else if (dev->sensor_id == IMX227_ID) {
/* according to IMX227 datasheet:
* vt_pix_freq_mhz = * num_of_vt_lanes(4) * ivt_pix_clk_freq_mhz
*/
vt_pix_clk_freq_mhz =
(u64)4 * ext_clk_freq_hz * pll_multiplier;
do_div(vt_pix_clk_freq_mhz, div);
} else
vt_pix_clk_freq_mhz = 2 * ext_clk_freq_hz / div;
vt_pix_clk_freq_mhz *= pll_multiplier;
if (dev->sensor_id == IMX132_ID && lanes > 0)
vt_pix_clk_freq_mhz *= lanes;
dev->vt_pix_clk_freq_mhz = vt_pix_clk_freq_mhz;
buf->vt_pix_clk_freq_mhz = vt_pix_clk_freq_mhz;
buf->coarse_integration_time_min = coarse_integration_time_min;
buf->coarse_integration_time_max_margin =
coarse_integration_time_max_margin;
buf->fine_integration_time_min = IMX_FINE_INTG_TIME;
buf->fine_integration_time_max_margin = IMX_FINE_INTG_TIME;
buf->fine_integration_time_def = IMX_FINE_INTG_TIME;
buf->frame_length_lines = dev->lines_per_frame;
buf->line_length_pck = dev->pixels_per_line;
buf->read_mode = read_mode;
if (dev->sensor_id == IMX132_ID || dev->sensor_id == IMX208_ID ||
dev->sensor_id == IMX219_ID) {
buf->binning_factor_x = 1;
buf->binning_factor_y = 1;
} else {
if (dev->sensor_id == IMX227_ID)
ret = imx_read_reg(client, 1, IMX227_BINNING_ENABLE,
data);
else
ret = imx_read_reg(client, 1, IMX_BINNING_ENABLE, data);
if (ret)
return ret;
/* 1:binning enabled, 0:disabled */
if (data[0] == 1) {
if (dev->sensor_id == IMX227_ID)
ret = imx_read_reg(client, 1,
IMX227_BINNING_TYPE, data);
else
ret = imx_read_reg(client, 1,
IMX_BINNING_TYPE, data);
if (ret)
return ret;
buf->binning_factor_x = data[0] >> 4 & 0x0f;
if (!buf->binning_factor_x)
buf->binning_factor_x = 1;
buf->binning_factor_y = data[0] & 0xf;
if (!buf->binning_factor_y)
buf->binning_factor_y = 1;
/* WOWRKAROUND, NHD setting for IMX227 should have 4x4
* binning but the register setting does not reflect
* this, I am asking vendor why this happens. this is
* workaround for INTEL BZ 216560.
*/
if (dev->sensor_id == IMX227_ID) {
if (dev->curr_res_table[dev->fmt_idx].width ==
376 &&
dev->curr_res_table[dev->fmt_idx].height ==
656) {
buf->binning_factor_x = 4;
buf->binning_factor_y = 4;
}
}
} else {
buf->binning_factor_x = 1;
buf->binning_factor_y = 1;
}
}
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 imx_q_exposure(struct v4l2_subdev *sd, s32 *value)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
u16 coarse;
int ret;
/* the fine integration time is currently not calculated */
ret = imx_read_reg(client, IMX_16BIT,
dev->reg_addr->coarse_integration_time, &coarse);
*value = coarse;
return ret;
}
static int imx_test_pattern(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
int ret;
if (dev->power == 0)
return 0;
ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_R,
(u16)(dev->tp_r->val >> 22));
if (ret)
return ret;
ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_GR,
(u16)(dev->tp_gr->val >> 22));
if (ret)
return ret;
ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_GB,
(u16)(dev->tp_gb->val >> 22));
if (ret)
return ret;
ret = imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_COLOR_B,
(u16)(dev->tp_b->val >> 22));
if (ret)
return ret;
return imx_write_reg(client, IMX_16BIT, IMX_TEST_PATTERN_MODE,
(u16)(dev->tp_mode->val));
}
static u32 imx_translate_bayer_order(enum atomisp_bayer_order code)
{
switch (code) {
case atomisp_bayer_order_rggb:
return MEDIA_BUS_FMT_SRGGB10_1X10;
case atomisp_bayer_order_grbg:
return MEDIA_BUS_FMT_SGRBG10_1X10;
case atomisp_bayer_order_bggr:
return MEDIA_BUS_FMT_SBGGR10_1X10;
case atomisp_bayer_order_gbrg:
return MEDIA_BUS_FMT_SGBRG10_1X10;
}
return 0;
}
static int imx_v_flip(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
struct camera_mipi_info *imx_info = NULL;
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
u16 val;
if (dev->power == 0)
return -EIO;
ret = imx_write_reg_array(client, dev->param_hold);
if (ret)
return ret;
ret = imx_read_reg(client, IMX_8BIT,
dev->reg_addr->img_orientation, &val);
if (ret)
return ret;
if (value)
val |= IMX_VFLIP_BIT;
else
val &= ~IMX_VFLIP_BIT;
ret = imx_write_reg(client, IMX_8BIT,
dev->reg_addr->img_orientation, val);
if (ret)
return ret;
imx_info = v4l2_get_subdev_hostdata(sd);
if (imx_info) {
val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
dev->format.code = imx_translate_bayer_order(
imx_info->raw_bayer_order);
}
return imx_write_reg_array(client, dev->param_update);
}
static int imx_h_flip(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
struct camera_mipi_info *imx_info = NULL;
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
u16 val;
if (dev->power == 0)
return -EIO;
ret = imx_write_reg_array(client, dev->param_hold);
if (ret)
return ret;
ret = imx_read_reg(client, IMX_8BIT,
dev->reg_addr->img_orientation, &val);
if (ret)
return ret;
if (value)
val |= IMX_HFLIP_BIT;
else
val &= ~IMX_HFLIP_BIT;
ret = imx_write_reg(client, IMX_8BIT,
dev->reg_addr->img_orientation, val);
if (ret)
return ret;
imx_info = v4l2_get_subdev_hostdata(sd);
if (imx_info) {
val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
dev->format.code = imx_translate_bayer_order(
imx_info->raw_bayer_order);
}
return imx_write_reg_array(client, dev->param_update);
}
static int imx_g_focal(struct v4l2_subdev *sd, s32 *val)
{
*val = (IMX_FOCAL_LENGTH_NUM << 16) | IMX_FOCAL_LENGTH_DEM;
return 0;
}
static int imx_g_fnumber(struct v4l2_subdev *sd, s32 *val)
{
/*const f number for imx*/
*val = (IMX_F_NUMBER_DEFAULT_NUM << 16) | IMX_F_NUMBER_DEM;
return 0;
}
static int imx_g_fnumber_range(struct v4l2_subdev *sd, s32 *val)
{
*val = (IMX_F_NUMBER_DEFAULT_NUM << 24) |
(IMX_F_NUMBER_DEM << 16) |
(IMX_F_NUMBER_DEFAULT_NUM << 8) | IMX_F_NUMBER_DEM;
return 0;
}
static int imx_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
{
struct imx_device *dev = to_imx_sensor(sd);
*val = dev->curr_res_table[dev->fmt_idx].bin_factor_x;
return 0;
}
static int imx_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
{
struct imx_device *dev = to_imx_sensor(sd);
*val = dev->curr_res_table[dev->fmt_idx].bin_factor_y;
return 0;
}
static int imx_t_focus_abs(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->t_focus_abs)
return dev->vcm_driver->t_focus_abs(sd, value);
return 0;
}
static int imx_t_focus_rel(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->t_focus_rel)
return dev->vcm_driver->t_focus_rel(sd, value);
return 0;
}
static int imx_q_focus_status(struct v4l2_subdev *sd, s32 *value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->q_focus_status)
return dev->vcm_driver->q_focus_status(sd, value);
return 0;
}
static int imx_q_focus_abs(struct v4l2_subdev *sd, s32 *value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->q_focus_abs)
return dev->vcm_driver->q_focus_abs(sd, value);
return 0;
}
static int imx_t_vcm_slew(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->t_vcm_slew)
return dev->vcm_driver->t_vcm_slew(sd, value);
return 0;
}
static int imx_t_vcm_timing(struct v4l2_subdev *sd, s32 value)
{
struct imx_device *dev = to_imx_sensor(sd);
if (dev->vcm_driver && dev->vcm_driver->t_vcm_timing)
return dev->vcm_driver->t_vcm_timing(sd, value);
return 0;
}
static int imx_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx_device *dev = container_of(
ctrl->handler, struct imx_device, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
int ret = 0;
switch (ctrl->id) {
case V4L2_CID_TEST_PATTERN:
ret = imx_test_pattern(&dev->sd);
break;
case V4L2_CID_VFLIP:
dev_dbg(&client->dev, "%s: CID_VFLIP:%d.\n",
__func__, ctrl->val);
ret = imx_v_flip(&dev->sd, ctrl->val);
break;
case V4L2_CID_HFLIP:
dev_dbg(&client->dev, "%s: CID_HFLIP:%d.\n",
__func__, ctrl->val);
ret = imx_h_flip(&dev->sd, ctrl->val);
break;
case V4L2_CID_FOCUS_ABSOLUTE:
ret = imx_t_focus_abs(&dev->sd, ctrl->val);
break;
case V4L2_CID_FOCUS_RELATIVE:
ret = imx_t_focus_rel(&dev->sd, ctrl->val);
break;
case V4L2_CID_VCM_SLEW:
ret = imx_t_vcm_slew(&dev->sd, ctrl->val);
break;
case V4L2_CID_VCM_TIMEING:
ret = imx_t_vcm_timing(&dev->sd, ctrl->val);
break;
}
return ret;
}
static int imx_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx_device *dev = container_of(
ctrl->handler, struct imx_device, ctrl_handler);
int ret = 0;
unsigned int val;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE_ABSOLUTE:
ret = imx_q_exposure(&dev->sd, &ctrl->val);
break;
case V4L2_CID_FOCUS_ABSOLUTE:
ret = imx_q_focus_abs(&dev->sd, &ctrl->val);
break;
case V4L2_CID_FOCUS_STATUS:
ret = imx_q_focus_status(&dev->sd, &ctrl->val);
break;
case V4L2_CID_FOCAL_ABSOLUTE:
ret = imx_g_focal(&dev->sd, &ctrl->val);
break;
case V4L2_CID_FNUMBER_ABSOLUTE:
ret = imx_g_fnumber(&dev->sd, &ctrl->val);
break;
case V4L2_CID_FNUMBER_RANGE:
ret = imx_g_fnumber_range(&dev->sd, &ctrl->val);
break;
case V4L2_CID_BIN_FACTOR_HORZ:
ret = imx_g_bin_factor_x(&dev->sd, &ctrl->val);
break;
case V4L2_CID_BIN_FACTOR_VERT:
ret = imx_g_bin_factor_y(&dev->sd, &ctrl->val);
break;
case V4L2_CID_VBLANK:
ctrl->val = dev->lines_per_frame -
dev->curr_res_table[dev->fmt_idx].height;
break;
case V4L2_CID_HBLANK:
ctrl->val = dev->pixels_per_line -
dev->curr_res_table[dev->fmt_idx].width;
break;
case V4L2_CID_PIXEL_RATE:
ctrl->val = dev->vt_pix_clk_freq_mhz;
break;
case V4L2_CID_LINK_FREQ:
val = dev->curr_res_table[dev->fmt_idx].
fps_options[dev->fps_index].mipi_freq;
if (val == 0)
val = dev->curr_res_table[dev->fmt_idx].mipi_freq;
if (val == 0)
return -EINVAL;
ctrl->val = val * 1000; /* To Hz */
break;
default:
return -EINVAL;
}
return ret;
}
static const struct v4l2_ctrl_ops ctrl_ops = {
.s_ctrl = imx_s_ctrl,
.g_volatile_ctrl = imx_g_volatile_ctrl
};
static const struct v4l2_ctrl_config imx_controls[] = {
{
.ops = &ctrl_ops,
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.min = 0x0,
.max = 0xffff,
.step = 0x01,
.def = 0x00,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Test pattern",
.min = 0,
.max = 0xffff,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN_COLOR_R,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Test pattern solid color R",
.min = INT_MIN,
.max = INT_MAX,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN_COLOR_GR,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Test pattern solid color GR",
.min = INT_MIN,
.max = INT_MAX,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN_COLOR_GB,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Test pattern solid color GB",
.min = INT_MIN,
.max = INT_MAX,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_TEST_PATTERN_COLOR_B,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Test pattern solid color B",
.min = INT_MIN,
.max = INT_MAX,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Flip",
.min = 0,
.max = 1,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_HFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mirror",
.min = 0,
.max = 1,
.step = 1,
.def = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FOCUS_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "focus move absolute",
.min = 0,
.max = IMX_MAX_FOCUS_POS,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FOCUS_RELATIVE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "focus move relative",
.min = IMX_MAX_FOCUS_NEG,
.max = IMX_MAX_FOCUS_POS,
.step = 1,
.def = 0,
.flags = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FOCUS_STATUS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "focus status",
.min = 0,
.max = 100, /* allow enum to grow in the future */
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_VCM_SLEW,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "vcm slew",
.min = 0,
.max = IMX_VCM_SLEW_STEP_MAX,
.step = 1,
.def = 0,
.flags = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_VCM_TIMEING,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "vcm step time",
.min = 0,
.max = IMX_VCM_SLEW_TIME_MAX,
.step = 1,
.def = 0,
.flags = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FOCAL_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "focal length",
.min = IMX_FOCAL_LENGTH_DEFAULT,
.max = IMX_FOCAL_LENGTH_DEFAULT,
.step = 0x01,
.def = IMX_FOCAL_LENGTH_DEFAULT,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FNUMBER_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "f-number",
.min = IMX_F_NUMBER_DEFAULT,
.max = IMX_F_NUMBER_DEFAULT,
.step = 0x01,
.def = IMX_F_NUMBER_DEFAULT,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_FNUMBER_RANGE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "f-number range",
.min = IMX_F_NUMBER_RANGE,
.max = IMX_F_NUMBER_RANGE,
.step = 0x01,
.def = IMX_F_NUMBER_RANGE,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_BIN_FACTOR_HORZ,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "horizontal binning factor",
.min = 0,
.max = IMX_BIN_FACTOR_MAX,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_BIN_FACTOR_VERT,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "vertical binning factor",
.min = 0,
.max = IMX_BIN_FACTOR_MAX,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &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,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_PIXEL_RATE,
.name = "Pixel Rate",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = INT_MAX,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_HBLANK,
.name = "Horizontal Blanking",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = SHRT_MAX,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_VBLANK,
.name = "Vertical Blanking",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = SHRT_MAX,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_VOLATILE,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_HFLIP,
.name = "Horizontal Flip",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 1,
.step = 1,
.def = 0,
.flags = 0,
},
{
.ops = &ctrl_ops,
.id = V4L2_CID_VFLIP,
.name = "Vertical Flip",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 1,
.step = 1,
.def = 0,
.flags = 0,
},
};
/*
* distance - calculate the distance
* @res: resolution
* @w: width
* @h: height
*
* Get the gap between resolution and w/h.
* res->width/height smaller than w/h wouldn't be considered.
* Returns the value of gap or -1 if fail.
*/
#define LARGEST_ALLOWED_RATIO_MISMATCH 600
static int distance(struct imx_resolution const *res, u32 w, u32 h,
bool keep_ratio)
{
unsigned int w_ratio;
unsigned int h_ratio;
int match;
unsigned int allowed_ratio_mismatch = LARGEST_ALLOWED_RATIO_MISMATCH;
if (!keep_ratio)
allowed_ratio_mismatch = ~0;
if (w == 0)
return -1;
w_ratio = (res->width << 13) / w;
if (h == 0)
return -1;
h_ratio = (res->height << 13) / h;
if (h_ratio == 0)
return -1;
match = abs(((w_ratio << 13) / h_ratio) - ((int)8192));
if ((w_ratio < (int)8192) || (h_ratio < (int)8192) ||
(match > allowed_ratio_mismatch))
return -1;
return w_ratio + h_ratio;
}
/* Return the nearest higher resolution index */
static int nearest_resolution_index(struct v4l2_subdev *sd, int w, int h)
{
int i;
int idx = -1;
int dist;
int fps_diff;
int min_fps_diff = INT_MAX;
int min_dist = INT_MAX;
const struct imx_resolution *tmp_res = NULL;
struct imx_device *dev = to_imx_sensor(sd);
bool again = 1;
retry:
for (i = 0; i < dev->entries_curr_table; i++) {
tmp_res = &dev->curr_res_table[i];
dist = distance(tmp_res, w, h, again);
if (dist == -1)
continue;
if (dist < min_dist) {
min_dist = dist;
idx = i;
}
if (dist == min_dist) {
fps_diff = __imx_min_fps_diff(dev->targetfps,
tmp_res->fps_options);
if (fps_diff < min_fps_diff) {
min_fps_diff = fps_diff;
idx = i;
}
}
}
/*
* FIXME!
* only IMX135 for Saltbay and IMX227 use this algorithm
*/
if (idx == -1 && again == true && dev->new_res_sel_method) {
again = false;
goto retry;
}
return idx;
}
/* Call with ctrl_handler.lock hold */
static int __adjust_hvblank(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
u16 new_frame_length_lines, new_line_length_pck;
int ret;
/*
* No need to adjust h/v blank if not set dbg value
* Note that there is no other checking on the h/v blank value,
* as h/v blank can be set to any value above zero for debug purpose
*/
if (!dev->v_blank->val || !dev->h_blank->val)
return 0;
new_frame_length_lines = dev->curr_res_table[dev->fmt_idx].height +
dev->v_blank->val;
new_line_length_pck = dev->curr_res_table[dev->fmt_idx].width +
dev->h_blank->val;
ret = imx_write_reg(client, IMX_16BIT,
dev->reg_addr->line_length_pixels, new_line_length_pck);
if (ret)
return ret;
ret = imx_write_reg(client, IMX_16BIT,
dev->reg_addr->frame_length_lines, new_frame_length_lines);
if (ret)
return ret;
dev->lines_per_frame = new_frame_length_lines;
dev->pixels_per_line = new_line_length_pck;
return 0;
}
static int imx_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
struct imx_device *dev = to_imx_sensor(sd);
struct camera_mipi_info *imx_info = NULL;
struct i2c_client *client = v4l2_get_subdevdata(sd);
const struct imx_resolution *res;
int lanes = imx_get_lanes(sd);
int ret;
u16 data, val;
int idx;
if (format->pad)
return -EINVAL;
if (!fmt)
return -EINVAL;
imx_info = v4l2_get_subdev_hostdata(sd);
if (imx_info == NULL)
return -EINVAL;
if ((fmt->width > imx_max_res[dev->sensor_id].res_max_width)
|| (fmt->height > imx_max_res[dev->sensor_id].res_max_height)) {
fmt->width = imx_max_res[dev->sensor_id].res_max_width;
fmt->height = imx_max_res[dev->sensor_id].res_max_height;
} 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 wecan 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 = dev->format.code;
if(format->which == V4L2_SUBDEV_FORMAT_TRY) {
cfg->try_fmt = *fmt;
return 0;
}
mutex_lock(&dev->input_lock);
dev->fmt_idx = nearest_resolution_index(sd, fmt->width, fmt->height);
if (dev->fmt_idx == -1) {
ret = -EINVAL;
goto out;
}
res = &dev->curr_res_table[dev->fmt_idx];
/* Adjust the FPS selection based on the resolution selected */
dev->fps_index = __imx_nearest_fps_index(dev->targetfps,
res->fps_options);
dev->fps = res->fps_options[dev->fps_index].fps;
dev->regs = res->fps_options[dev->fps_index].regs;
if (!dev->regs)
dev->regs = res->regs;
ret = imx_write_reg_array(client, dev->regs);
if (ret)
goto out;
if (dev->sensor_id == IMX132_ID && lanes > 0) {
static const u8 imx132_rgpltd[] = {
2, /* 1 lane: /1 */
0, /* 2 lanes: /2 */
0, /* undefined */
1, /* 4 lanes: /4 */
};
ret = imx_write_reg(client, IMX_8BIT, IMX132_208_VT_RGPLTD,
imx132_rgpltd[lanes - 1]);
if (ret)
goto out;
}
dev->pixels_per_line = res->fps_options[dev->fps_index].pixels_per_line;
dev->lines_per_frame = res->fps_options[dev->fps_index].lines_per_frame;
/* dbg h/v blank time */
__adjust_hvblank(sd);
ret = __imx_update_exposure_timing(client, dev->coarse_itg,
dev->pixels_per_line, dev->lines_per_frame);
if (ret)
goto out;
ret = __imx_update_gain(sd, dev->gain);
if (ret)
goto out;
ret = __imx_update_digital_gain(client, dev->digital_gain);
if (ret)
goto out;
ret = imx_write_reg_array(client, dev->param_update);
if (ret)
goto out;
ret = imx_get_intg_factor(client, imx_info, dev->regs);
if (ret)
goto out;
ret = imx_read_reg(client, IMX_8BIT,
dev->reg_addr->img_orientation, &val);
if (ret)
goto out;
val &= (IMX_VFLIP_BIT|IMX_HFLIP_BIT);
imx_info->raw_bayer_order = imx_bayer_order_mapping[val];
dev->format.code = imx_translate_bayer_order(
imx_info->raw_bayer_order);
/*
* Fill meta data info. add imx135 metadata setting for RAW10 format
*/
switch (dev->sensor_id) {
case IMX135_ID:
ret = imx_read_reg(client, 2,
IMX135_OUTPUT_DATA_FORMAT_REG, &data);
if (ret)
goto out;
/*
* The IMX135 can support various resolutions like
* RAW6/8/10/12/14.
* 1.The data format is RAW10:
* matadata width = current resolution width(pixel) * 10 / 8
* 2.The data format is RAW6 or RAW8:
* matadata width = current resolution width(pixel);
* 3.other data format(RAW12/14 etc):
* TBD.
*/
if (data == IMX135_OUTPUT_FORMAT_RAW10)
/* the data format is RAW10. */
imx_info->metadata_width = res->width * 10 / 8;
else
/* The data format is RAW6/8/12/14/ etc. */
imx_info->metadata_width = res->width;
imx_info->metadata_height = IMX135_EMBEDDED_DATA_LINE_NUM;
if (imx_info->metadata_effective_width == NULL)
imx_info->metadata_effective_width =
imx135_embedded_effective_size;
break;
case IMX227_ID:
ret = imx_read_reg(client, 2, IMX227_OUTPUT_DATA_FORMAT_REG,
&data);
if (ret)
goto out;
if (data == IMX227_OUTPUT_FORMAT_RAW10)
/* the data format is RAW10. */
imx_info->metadata_width = res->width * 10 / 8;
else
/* The data format is RAW6/8/12/14/ etc. */
imx_info->metadata_width = res->width;
imx_info->metadata_height = IMX227_EMBEDDED_DATA_LINE_NUM;
if (imx_info->metadata_effective_width == NULL)
imx_info->metadata_effective_width =
imx227_embedded_effective_size;
break;
default:
imx_info->metadata_width = 0;
imx_info->metadata_height = 0;
imx_info->metadata_effective_width = NULL;
break;
}
out:
mutex_unlock(&dev->input_lock);
return ret;
}
static int imx_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
struct imx_device *dev = to_imx_sensor(sd);
if (format->pad)
return -EINVAL;
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 = dev->format.code;
mutex_unlock(&dev->input_lock);
return 0;
}
static int imx_detect(struct i2c_client *client, u16 *id, u8 *revision)
{
struct i2c_adapter *adapter = client->adapter;
/* i2c check */
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
return -ENODEV;
/* check sensor chip ID */
if (imx_read_reg(client, IMX_16BIT, IMX132_175_208_219_CHIP_ID, id)) {
v4l2_err(client, "sensor_id = 0x%x\n", *id);
return -ENODEV;
}
if (*id == IMX132_ID || *id == IMX175_ID ||
*id == IMX208_ID || *id == IMX219_ID)
goto found;
if (imx_read_reg(client, IMX_16BIT, IMX134_135_227_CHIP_ID, id)) {
v4l2_err(client, "sensor_id = 0x%x\n", *id);
return -ENODEV;
}
if (*id != IMX134_ID && *id != IMX135_ID && *id != IMX227_ID) {
v4l2_err(client, "no imx sensor found\n");
return -ENODEV;
}
found:
v4l2_info(client, "sensor_id = 0x%x\n", *id);
/* TODO - need to be updated */
*revision = 0;
return 0;
}
static void __imx_print_timing(struct v4l2_subdev *sd)
{
struct imx_device *dev = to_imx_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 width = dev->curr_res_table[dev->fmt_idx].width;
u16 height = dev->curr_res_table[dev->fmt_idx].height;
dev_dbg(&client->dev, "Dump imx timing in stream on:\n");
dev_dbg(&client->dev, "width: %d:\n", width);
dev_dbg(&client->dev, "height: %d:\n", height);
dev_dbg(&client->dev, "pixels_per_line: %d:\n", dev->pixels_per_line);
dev_dbg(&client->dev, "line per frame: %d:\n", dev->lines_per_frame);
dev_dbg(&client->dev, "pix freq: %d:\n", dev->vt_pix_clk_freq_mhz);
dev_dbg(&client->dev, "init fps: %d:\n", dev->vt_pix_clk_freq_mhz /
dev->pixels_per_line / dev->lines_per_frame);
dev_dbg(&client->dev, "HBlank: %d nS:\n",
1000 * (dev->pixels_per_line - width) /
(dev->vt_pix_clk_freq_mhz / 1000000));
dev_dbg(&client->dev, "VBlank: %d uS:\n",
(dev->lines_per_frame - height) * dev->pixels_per_line /
(dev->vt_pix_clk_freq_mhz / 1000000));
}
/*
* imx stream on/off
*/
static int imx_s_stream(struct v4l2_subdev *sd, int enable)
{
int ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct imx_device *dev = to_imx_sensor(sd);
mutex_lock(&dev->input_lock);
if (enable) {
/* Noise reduction & dead pixel applied before streaming */
if (dev->fw == NULL) {
dev_warn(&client->dev, "No MSR loaded from library");
} else {
ret = apply_msr_data(client, dev->fw);
if (ret) {
mutex_unlock(&dev->input_lock);
return ret;
}
}
ret = imx_test_pattern(sd);
if (ret) {
v4l2_err(client, "Configure test pattern failed.\n");
mutex_unlock(&dev->input_lock);
return ret;
}
__imx_print_timing(sd);
ret = imx_write_reg_array(client, imx_streaming);
if (ret != 0) {
v4l2_err(client, "write_reg_array err\n");
mutex_unlock(&dev->input_lock);
return ret;
}
dev->streaming = 1;
if (dev->vcm_driver && dev->vcm_driver->t_focus_abs_init)
dev->vcm_driver->t_focus_abs_init(sd);
} else {
ret = imx_write_reg_array(client, imx_soft_standby);
if (ret != 0) {
v4l2_err(client, "write_reg_array err\n");
mutex_unlock(&dev->input_lock);
return ret;
}
dev->streaming = 0;
dev->targetfps = 0;
}
mutex_unlock(&dev->input_lock);
return 0;
}
static int __update_imx_device_settings(struct imx_device *dev, u16 sensor_id)
{
/* IMX on other platform is not supported yet */
return -EINVAL;
}
static int imx_s_config(struct v4l2_subdev *sd,
int irq, void *pdata)
{
struct imx_device *dev = to_imx_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 sensor_revision;
u16 sensor_id;
int ret;
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);
dev_err(&client->dev, "imx platform init err\n");
return ret;
}
}
/*
* power off the module first.
*
* As first power on by board have undecided state of power/gpio pins.
*/
ret = __imx_s_power(sd, 0);
if (ret) {
v4l2_err(client, "imx power-down err.\n");
mutex_unlock(&dev->input_lock);
return ret;
}
ret = __imx_s_power(sd, 1);
if (ret) {
v4l2_err(client, "imx power-up err.\n");
mutex_unlock(&dev->input_lock);
return ret;
}
ret = dev->platform_data->csi_cfg(sd, 1);
if (ret)
goto fail_csi_cfg;
/* config & detect sensor */
ret = imx_detect(client, &sensor_id, &sensor_revision);
if (ret) {
v4l2_err(client, "imx_detect err s_config.\n");
goto fail_detect;
}
dev->sensor_id = sensor_id;
dev->sensor_revision = sensor_revision;
/* Resolution settings depend on sensor type and platform */
ret = __update_imx_device_settings(dev, dev->sensor_id);
if (ret)
goto fail_detect;
/* Read sensor's OTP data */
dev->otp_data = dev->otp_driver->otp_read(sd,
dev->otp_driver->dev_addr, dev->otp_driver->start_addr,
dev->otp_driver->size);
/* power off sensor */
ret = __imx_s_power(sd, 0);
mutex_unlock(&dev->input_lock);
if (ret)
v4l2_err(client, "imx power-down err.\n");
return ret;
fail_detect:
dev->platform_data->csi_cfg(sd, 0);
fail_csi_cfg:
__imx_s_power(sd, 0);
if (dev->platform_data->platform_deinit)
dev->platform_data->platform_deinit();
mutex_unlock(&dev->input_lock);
dev_err(&client->dev, "sensor power-gating failed\n");
return ret;
}
static int
imx_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct imx_device *dev = to_imx_sensor(sd);
if (code->index >= MAX_FMTS)
return -EINVAL;
mutex_lock(&dev->input_lock);
code->code = dev->format.code;
mutex_unlock(&dev->input_lock);
return 0;
}
static int
imx_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
int index = fse->index;
struct imx_device *dev = to_imx_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 int
imx_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *param)
{
struct imx_device *dev = to_imx_sensor(sd);
mutex_lock(&dev->input_lock);
dev->run_mode = param->parm.capture.capturemode;
switch (dev->run_mode) {
case CI_MODE_VIDEO:
dev->curr_res_table = dev->mode_tables->res_video;
dev->entries_curr_table = dev->mode_tables->n_res_video;
break;
case CI_MODE_STILL_CAPTURE:
dev->curr_res_table = dev->mode_tables->res_still;
dev->entries_curr_table = dev->mode_tables->n_res_still;
break;
default:
dev->curr_res_table = dev->mode_tables->res_preview;
dev->entries_curr_table = dev->mode_tables->n_res_preview;
}
mutex_unlock(&dev->input_lock);
return 0;
}
static int imx_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
struct imx_device *dev = to_imx_sensor(sd);
mutex_lock(&dev->input_lock);
interval->interval.denominator = dev->fps;
interval->interval.numerator = 1;
mutex_unlock(&dev->input_lock);
return 0;
}
static int __imx_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
struct imx_device *dev = to_imx_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
const struct imx_resolution *res =
&dev->curr_res_table[dev->fmt_idx];
struct camera_mipi_info *imx_info = NULL;
unsigned short pixels_per_line;
unsigned short lines_per_frame;
unsigned int fps_index;
int fps;
int ret = 0;
imx_info = v4l2_get_subdev_hostdata(sd);
if (imx_info == NULL)
return -EINVAL;
if (!interval->interval.numerator)
interval->interval.numerator = 1;
fps = interval->interval.denominator / interval->interval.numerator;
if (!fps)
return -EINVAL;
dev->targetfps = fps;
/* No need to proceed further if we are not streaming */
if (!dev->streaming)
return 0;
/* Ignore if we are already using the required FPS. */
if (fps == dev->fps)
return 0;
/*
* Start here, sensor is already streaming, so adjust fps dynamically
*/
fps_index = __imx_above_nearest_fps_index(fps, res->fps_options);
if (fps > res->fps_options[fps_index].fps) {
/*
* if does not have high fps setting, not support increase fps
* by adjust lines per frame.
*/
dev_err(&client->dev, "Could not support fps: %d.\n", fps);
return -EINVAL;
}
if (res->fps_options[fps_index].regs &&
res->fps_options[fps_index].regs != dev->regs) {
/*
* if need a new setting, but the new setting has difference
* with current setting, not use this one, as may have
* unexpected result, e.g. PLL, IQ.
*/
dev_dbg(&client->dev,
"Sensor is streaming, not apply new sensor setting\n");
if (fps > res->fps_options[dev->fps_index].fps) {
/*
* Does not support increase fps based on low fps
* setting, as the high fps setting could not be used,
* and fps requested is above current setting fps.
*/
dev_warn(&client->dev,
"Could not support fps: %d, keep current: %d.\n",
fps, dev->fps);
return 0;
}
} else {
dev->fps_index = fps_index;
dev->fps = res->fps_options[dev->fps_index].fps;
}
/* Update the new frametimings based on FPS */
pixels_per_line = res->fps_options[dev->fps_index].pixels_per_line;
lines_per_frame = res->fps_options[dev->fps_index].lines_per_frame;
if (fps > res->fps_options[fps_index].fps) {
/*
* if does not have high fps setting, not support increase fps
* by adjust lines per frame.
*/
dev_warn(&client->dev, "Could not support fps: %d. Use:%d.\n",
fps, res->fps_options[fps_index].fps);
goto done;
}
/* if the new setting does not match exactly */
if (dev->fps != fps) {
#define MAX_LINES_PER_FRAME 0xffff
dev_dbg(&client->dev, "adjusting fps using lines_per_frame\n");
/*
* FIXME!
* 1: check DS on max value of lines_per_frame
* 2: consider use pixel per line for more range?
*/
if (dev->lines_per_frame * dev->fps / fps >
MAX_LINES_PER_FRAME) {
dev_warn(&client->dev,
"adjust lines_per_frame out of range, try to use max value.\n");
lines_per_frame = MAX_LINES_PER_FRAME;
} else {
lines_per_frame = lines_per_frame * dev->fps / fps;
}
}
done:
/* Update the new frametimings based on FPS */
dev->pixels_per_line = pixels_per_line;
dev->lines_per_frame = lines_per_frame;
/* Update the new values so that user side knows the current settings */
ret = __imx_update_exposure_timing(client,
dev->coarse_itg, dev->pixels_per_line, dev->lines_per_frame);
if (ret)
return ret;
dev->fps = fps;
ret = imx_get_intg_factor(client, imx_info, dev->regs);
if (ret)
return ret;
interval->interval.denominator = res->fps_options[dev->fps_index].fps;
interval->interval.numerator = 1;
__imx_print_timing(sd);
return ret;
}
static int imx_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval)
{
struct imx_device *dev = to_imx_sensor(sd);
int ret;
mutex_lock(&dev->input_lock);
ret = __imx_s_frame_interval(sd, interval);
mutex_unlock(&dev->input_lock);
return ret;
}
static int imx_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
{
struct imx_device *dev = to_imx_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_sensor_ops imx_sensor_ops = {
.g_skip_frames = imx_g_skip_frames,
};
static const struct v4l2_subdev_video_ops imx_video_ops = {
.s_stream = imx_s_stream,
.s_parm = imx_s_parm,
.g_frame_interval = imx_g_frame_interval,
.s_frame_interval = imx_s_frame_interval,
};
static const struct v4l2_subdev_core_ops imx_core_ops = {
.s_power = imx_s_power,
.ioctl = imx_ioctl,
.init = imx_init,
};
static const struct v4l2_subdev_pad_ops imx_pad_ops = {
.enum_mbus_code = imx_enum_mbus_code,
.enum_frame_size = imx_enum_frame_size,
.get_fmt = imx_get_fmt,
.set_fmt = imx_set_fmt,
};
static const struct v4l2_subdev_ops imx_ops = {
.core = &imx_core_ops,
.video = &imx_video_ops,
.pad = &imx_pad_ops,
.sensor = &imx_sensor_ops,
};
static const struct media_entity_operations imx_entity_ops = {
.link_setup = NULL,
};
static int imx_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx_device *dev = to_imx_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);
release_msr_list(client, dev->fw);
kfree(dev);
return 0;
}
static int __imx_init_ctrl_handler(struct imx_device *dev)
{
struct v4l2_ctrl_handler *hdl;
int i;
hdl = &dev->ctrl_handler;
v4l2_ctrl_handler_init(&dev->ctrl_handler, ARRAY_SIZE(imx_controls));
for (i = 0; i < ARRAY_SIZE(imx_controls); i++)
v4l2_ctrl_new_custom(&dev->ctrl_handler,
&imx_controls[i], NULL);
dev->pixel_rate = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_PIXEL_RATE);
dev->h_blank = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_HBLANK);
dev->v_blank = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_VBLANK);
dev->link_freq = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_LINK_FREQ);
dev->h_flip = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_HFLIP);
dev->v_flip = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_VFLIP);
dev->tp_mode = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_TEST_PATTERN);
dev->tp_r = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_TEST_PATTERN_COLOR_R);
dev->tp_gr = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_TEST_PATTERN_COLOR_GR);
dev->tp_gb = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_TEST_PATTERN_COLOR_GB);
dev->tp_b = v4l2_ctrl_find(&dev->ctrl_handler,
V4L2_CID_TEST_PATTERN_COLOR_B);
if (dev->ctrl_handler.error || dev->pixel_rate == NULL
|| dev->h_blank == NULL || dev->v_blank == NULL
|| dev->h_flip == NULL || dev->v_flip == NULL
|| dev->link_freq == NULL) {
return dev->ctrl_handler.error;
}
dev->ctrl_handler.lock = &dev->input_lock;
dev->sd.ctrl_handler = hdl;
v4l2_ctrl_handler_setup(&dev->ctrl_handler);
return 0;
}
static void imx_update_reg_info(struct imx_device *dev)
{
if (dev->sensor_id == IMX219_ID) {
dev->reg_addr = &imx219_addr;
dev->param_hold = imx219_param_hold;
dev->param_update = imx219_param_update;
} else {
dev->reg_addr = &imx_addr;
dev->param_hold = imx_param_hold;
dev->param_update = imx_param_update;
}
}
static int imx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct imx_device *dev;
struct camera_mipi_info *imx_info = NULL;
int ret;
char *msr_file_name = NULL;
/* allocate sensor device & init sub device */
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
v4l2_err(client, "%s: out of memory\n", __func__);
return -ENOMEM;
}
mutex_init(&dev->input_lock);
dev->i2c_id = id->driver_data;
dev->fmt_idx = 0;
dev->sensor_id = IMX_ID_DEFAULT;
dev->vcm_driver = &imx_vcms[IMX_ID_DEFAULT];
dev->digital_gain = 256;
v4l2_i2c_subdev_init(&(dev->sd), client, &imx_ops);
if (client->dev.platform_data) {
ret = imx_s_config(&dev->sd, client->irq,
client->dev.platform_data);
if (ret)
goto out_free;
}
imx_info = v4l2_get_subdev_hostdata(&dev->sd);
/*
* sd->name is updated with sensor driver name by the v4l2.
* change it to sensor name in this case.
*/
imx_update_reg_info(dev);
snprintf(dev->sd.name, sizeof(dev->sd.name), "%s%x %d-%04x",
IMX_SUBDEV_PREFIX, dev->sensor_id,
i2c_adapter_id(client->adapter), client->addr);
ret = __imx_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 = imx_translate_bayer_order(
imx_info->raw_bayer_order);
dev->sd.entity.ops = &imx_entity_ops;
dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
if (ret) {
imx_remove(client);
return ret;
}
/* Load the Noise reduction, Dead pixel registers from cpf file*/
if (dev->platform_data->msr_file_name != NULL)
msr_file_name = dev->platform_data->msr_file_name();
if (msr_file_name) {
ret = load_msr_list(client, msr_file_name, &dev->fw);
if (ret) {
imx_remove(client);
return ret;
}
} else {
dev_warn(&client->dev, "Drvb file not present");
}
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;
}
static const struct i2c_device_id imx_ids[] = {
{IMX_NAME_175, IMX175_ID},
{IMX_NAME_135, IMX135_ID},
{IMX_NAME_135_FUJI, IMX135_FUJI_ID},
{IMX_NAME_134, IMX134_ID},
{IMX_NAME_132, IMX132_ID},
{IMX_NAME_208, IMX208_ID},
{IMX_NAME_219, IMX219_ID},
{IMX_NAME_227, IMX227_ID},
{}
};
MODULE_DEVICE_TABLE(i2c, imx_ids);
static struct i2c_driver imx_driver = {
.driver = {
.name = IMX_DRIVER,
},
.probe = imx_probe,
.remove = imx_remove,
.id_table = imx_ids,
};
static __init int init_imx(void)
{
return i2c_add_driver(&imx_driver);
}
static __exit void exit_imx(void)
{
i2c_del_driver(&imx_driver);
}
module_init(init_imx);
module_exit(exit_imx);
MODULE_DESCRIPTION("A low-level driver for Sony IMX sensors");
MODULE_AUTHOR("Shenbo Huang <shenbo.huang@intel.com>");
MODULE_LICENSE("GPL");