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android_kernel_modules_leno.../camera/drivers/media/i2c/hm2056_raw.c

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/*
* Support for HM2056_raw Camera Sensor.
*
* Copyright (c) 2013 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/fs.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include "hm2056_raw.h"
#define to_hm2056_raw_sensor(sd) container_of(sd, struct hm2056_raw_device, sd)
//Add for ATD command+++
extern int build_version; //Add build version -> user:3, userdebug:2, eng:1
struct v4l2_subdev *main_sd;
int ATD_hm2056_raw_status = 0;
static char camera_module_otp[60];
//static void *hm2056_raw_otp_read(struct v4l2_subdev *sd);
static ssize_t hm2056_raw_show_status(struct device *dev, struct device_attribute *attr, char *buf)
{
printk("%s: get hm2056_raw status (%d) !!\n", __func__, ATD_hm2056_raw_status);
//Check sensor connect status, just do it in begining for ATD camera status
return sprintf(buf, "%d\n", ATD_hm2056_raw_status);
}
static ssize_t hm2056_raw_read_otp(struct device *dev, struct device_attribute *attr, char *buf)
{
printk("%s: get hm2056 module OTP %s !!\n", __func__, camera_module_otp);
//Check sensor OTP value, just do it in begining for ATD camera status
/*
if(build_version != 1){ //not eng, need to read otp first
hm2056_raw_otp_read(main_sd);
}
*/
return sprintf(buf, "%s", camera_module_otp);
}
static DEVICE_ATTR(hm2056_raw_status, S_IRUGO, hm2056_raw_show_status, NULL);
static DEVICE_ATTR(hm2056_raw_read_otp, S_IRUGO, hm2056_raw_read_otp, NULL);
static struct attribute *hm2056_raw_attributes[] = {
&dev_attr_hm2056_raw_status.attr,
&dev_attr_hm2056_raw_read_otp.attr,
NULL
};
//Add for ATD command---
static int
hm2056_raw_read_reg(struct i2c_client *client, u16 data_length, u32 reg, u32 *val)
{
int err;
struct i2c_msg msg[2];
unsigned char data[2];
if (!client->adapter) {
v4l2_err(client, "%s error, no client->adapter\n", __func__);
return -ENODEV;
}
if (data_length != HM2056_8BIT) {
v4l2_err(client, "%s error, invalid data length\n", __func__);
return -EINVAL;
}
msg[0].addr = client->addr;
msg[0].flags = 0;
msg[0].len = MSG_LEN_OFFSET;
msg[0].buf = data;
/* high byte goes out first */
data[0] = (u16) (reg >> 8);
data[1] = (u16) (reg & 0xff);
msg[1].addr = client->addr;
msg[1].len = data_length;
msg[1].flags = I2C_M_RD;
msg[1].buf = data;
err = i2c_transfer(client->adapter, msg, 2);
if (err >= 0) {
*val = data[0];
return 0;
}
dev_err(&client->dev, "read from offset 0x%x error %d", reg, err);
return err;
}
static int
hm2056_raw_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u32 val)
{
int num_msg;
struct i2c_msg msg;
unsigned char data[6] = {0};
u16 *wreg;
int retry = 0;
if (!client->adapter) {
v4l2_err(client, "%s error, no client->adapter\n", __func__);
return -ENODEV;
}
if (data_length != HM2056_8BIT) {
v4l2_err(client, "%s error, invalid data_length\n", __func__);
return -EINVAL;
}
memset(&msg, 0, sizeof(msg));
again:
msg.addr = client->addr;
msg.flags = 0;
msg.len = sizeof(u16) + data_length;
msg.buf = data;
/* high byte goes out first */
wreg = (u16 *)data;
*wreg = cpu_to_be16(reg);
data[2] = (u8)(val);
num_msg = i2c_transfer(client->adapter, &msg, 1);
if (num_msg >= 0)
return 0;
dev_err(&client->dev, "write error: wrote 0x%x to offset 0x%x error %d",
val, reg, num_msg);
if (retry <= I2C_RETRY_COUNT) {
dev_dbg(&client->dev, "retrying... %d", retry);
retry++;
msleep(20);
goto again;
}
return num_msg;
}
/*
* hm2056_raw_write_reg_array - write a list of hm2056_raw registers
* @client: i2c driver client structure
* @reglist: list of registers to be written
*
* This function write a list of registers.
*/
static int hm2056_raw_write_reg_array(struct i2c_client *client,
const struct hm2056_reg *reglist)
{
const struct hm2056_reg *next = reglist;
struct hm2056_write_ctrl ctrl;
int ret;
ctrl.index = 0;
for (; next->type != HM2056_TOK_TERM; next++) {
switch (next->type & HM2056_TOK_MASK) {
case HM2056_TOK_DELAY:
msleep(next->val);
break;
default:
ret = hm2056_raw_write_reg(client, next->type, next->reg, next->val);
if (ret) {
v4l2_err(client, "%s: write %x error, aborted\n",
__func__, next->reg);
return ret;
}
break;
}
}
return 0;
}
static int hm2056_raw_set_suspend(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
dev_info(&client->dev, "%s\n", __func__);
ret = hm2056_raw_write_reg_array(client, hm2056_stream_off);
if (ret)
return -EINVAL;
return 0;
}
static int hm2056_raw_set_streaming(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
dev_info(&client->dev, "%s\n", __func__);
ret = hm2056_raw_write_reg_array(client, hm2056_stream_on);
if (ret)
return -EINVAL;
return 0;
}
static int power_up(struct v4l2_subdev *sd)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
dev_info(&client->dev, "%s\n", __func__);
if (NULL == dev->platform_data) {
dev_err(&client->dev, "no camera_sensor_platform_data");
return -ENODEV;
}
/* power control */
ret = dev->platform_data->power_ctrl(sd, 1);
if (ret) {
dev_err(&client->dev, "power_ctrl failed\n");
goto fail_power;
}
/* flis clock control */
ret = dev->platform_data->flisclk_ctrl(sd, 1);
if (ret) {
dev_err(&client->dev, "flisclk_ctrl failed\n");
goto fail_clk;
}
msleep(10);
/* gpio ctrl */
ret = dev->platform_data->gpio_ctrl(sd, 1);
if (ret) {
dev_err(&client->dev, "gpio_ctrl failed\n");
}
msleep(50);
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 hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
dev_info(&client->dev, "%s\n", __func__);
if (NULL == dev->platform_data) {
dev_err(&client->dev, "no camera_sensor_platform_data\n");
return -ENODEV;
}
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");
/*according to DS, 20ms is needed after power down*/
msleep(20);
return ret;
}
static int hm2056_raw_s_power(struct v4l2_subdev *sd, int power)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
int ret;
dev_info(&client->dev, "%s on/off %d\n", __func__, power);
mutex_lock(&dev->input_lock);
if (power == 0) {
ret = power_down(sd);
} else {
ret = power_up(sd);
if (!ret) {
ret = hm2056_raw_write_reg_array(client, hm2056_init);
}
}
mutex_unlock(&dev->input_lock);
return ret;
}
static int hm2056_raw_to_res(struct v4l2_subdev *sd, u32 w, u32 h)
{
int idx;
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
for (idx = 0; idx < dev->n_res; idx++) {
if ((dev->hm2056_raw_res[idx].width == w) &&
(dev->hm2056_raw_res[idx].height == h))
break;
}
/* No mode found */
if (idx >= dev->n_res)
return -1;
return idx;
}
static int hm2056_raw_try_res(struct v4l2_subdev *sd, u32 *w, u32 *h)
{
int idx;
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
/*
* The mode list is in ascending order. We're done as soon as
* we have found the first equal or bigger size.
*/
for (idx = 0; idx < dev->n_res; idx++) {
if ((dev->hm2056_raw_res[idx].width >= *w) &&
(dev->hm2056_raw_res[idx].height >= *h))
break;
}
/*
* If no mode was found, it means we can provide only a smaller size.
* Returning the biggest one available in this case.
*/
if (idx == dev->n_res)
idx--;
*w = dev->hm2056_raw_res[idx].width;
*h = dev->hm2056_raw_res[idx].height;
return 0;
}
static int hm2056_raw_try_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
int ret;
if (!fmt)
return -EINVAL;
mutex_lock(&dev->input_lock);
ret = hm2056_raw_try_res(sd, &fmt->width, &fmt->height);
mutex_unlock(&dev->input_lock);
return ret;
}
static int hm2056_raw_get_intg_factor(struct i2c_client *client,
struct camera_mipi_info *info,
const struct hm2056_raw_res_struct *res)
{
struct atomisp_sensor_mode_data *buf = &info->data;
dev_info(&client->dev, "%s\n", __func__);
if (info == NULL || res == NULL)
return -EINVAL;
buf->vt_pix_clk_freq_mhz = res->pixel_clk;
buf->frame_length_lines = res->frame_length_lines;
buf->line_length_pck = res->line_length_pck;
/* get integration time */
buf->coarse_integration_time_min = HM2056_COARSE_INTG_TIME_MIN;
buf->coarse_integration_time_max_margin =
HM2056_COARSE_INTG_TIME_MAX_MARGIN;
buf->fine_integration_time_min = HM2056_FINE_INTG_TIME_MIN;
buf->fine_integration_time_max_margin =
HM2056_FINE_INTG_TIME_MAX_MARGIN;
buf->fine_integration_time_def = HM2056_FINE_INTG_TIME_MIN;
buf->output_width = res->width;
buf->output_height = res->height;
buf->read_mode = res->bin_mode;
buf->binning_factor_x = res->bin_factor_x;
buf->binning_factor_y = res->bin_factor_y;
buf->crop_horizontal_start = res->horizontal_start;
buf->crop_horizontal_end = res->horizontal_end;
buf->crop_vertical_start = res->vertical_start;
buf->crop_vertical_end = res->vertical_end;
dev_info(&client->dev, "%s h start %d end %d v start %d end %d "
"frame_length_line %d line_length_pck %d "
" read mode %d binning_x %d binning_y %d\n", __func__,
buf->crop_horizontal_start, buf->crop_horizontal_end,
buf->crop_vertical_start, buf->crop_vertical_end,
buf->frame_length_lines, buf->line_length_pck,
buf->read_mode, buf->binning_factor_x, buf->binning_factor_y);
return 0;
}
static int hm2056_raw_get_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (!fmt)
return -EINVAL;
mutex_lock(&dev->input_lock);
fmt->width = dev->hm2056_raw_res[dev->fmt_idx].width;
fmt->height = dev->hm2056_raw_res[dev->fmt_idx].height;
fmt->code = V4L2_MBUS_FMT_SGRBG8_1X8;
mutex_unlock(&dev->input_lock);
return 0;
}
static int hm2056_raw_set_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
struct camera_mipi_info *hm2056_raw_info = NULL;
int ret;
int index;
u32 width;
u32 height;
if (!fmt)
return -EINVAL;
width = fmt->width;
height = fmt->height;
hm2056_raw_info = v4l2_get_subdev_hostdata(sd);
if (hm2056_raw_info == NULL)
return -EINVAL;
mutex_lock(&dev->input_lock);
hm2056_raw_try_res(sd, &width, &height);
dev_info(&client->dev, "%s %d x %d => %d x %d\n", __func__, fmt->width, fmt->height, width, height);
dev->fmt_idx = hm2056_raw_to_res(sd, width, height);
if (dev->fmt_idx == -1) {
dev->fmt_idx = 0;
mutex_unlock(&dev->input_lock);
dev_err(&client->dev, "%s no resolution found\n", __func__);
return -EINVAL;
}
ret = hm2056_raw_write_reg_array(client, dev->hm2056_raw_res[dev->fmt_idx].regs);
if (ret) {
mutex_unlock(&dev->input_lock);
return -EINVAL;
}
if (hm2056_raw_set_suspend(sd)) {
mutex_unlock(&dev->input_lock);
return -EINVAL;
}
/*
* Marked current sensor res as being "used"
*
* REVISIT: We don't need to use an "used" field on each mode
* list entry to know which mode is selected. If this
* information is really necessary, how about to use a single
* variable on sensor dev struct?
*/
for (index = 0; index < dev->n_res; index++) {
if ((width == dev->hm2056_raw_res[index].width) &&
(height == dev->hm2056_raw_res[index].height)) {
dev->hm2056_raw_res[index].used = 1;
continue;
}
dev->hm2056_raw_res[index].used = 0;
}
ret = hm2056_raw_get_intg_factor(client, hm2056_raw_info,
&dev->hm2056_raw_res[dev->fmt_idx]);
if (ret) {
mutex_unlock(&dev->input_lock);
dev_err(&client->dev, "failed to get integration_factor\n");
return -EINVAL;
}
fmt->width = width;
fmt->height = height;
fmt->code = V4L2_MBUS_FMT_SGRBG8_1X8;
mutex_unlock(&dev->input_lock);
return 0;
}
static int hm2056_raw_q_exposure(struct v4l2_subdev *sd, s32 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
u32 integration_time_h = 0;
u32 integration_time_l = 0;
int ret = 0;
ret = hm2056_raw_read_reg(client, HM2056_8BIT, HM2056_REG_INTEGRATION_TIME_H, &integration_time_h);
if (ret) {
v4l2_err(client, "%s: read HM2056_REG_INTEGRATION_TIME_H error %d\n", __func__, ret);
return ret;
}
ret = hm2056_raw_read_reg(client, HM2056_8BIT, HM2056_REG_INTEGRATION_TIME_L, &integration_time_l);
if (ret) {
v4l2_err(client, "%s: read HM2056_REG_INTEGRATION_TIME_L error %d\n", __func__, ret);
return ret;
}
*val = integration_time_l | (integration_time_h << 8);
return 0;
}
static long hm2056_raw_s_exposure(struct v4l2_subdev *sd,
struct atomisp_exposure *exposure)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = 0;
u8 analog_gain = 0;
u8 digital_gain = 0;
u32 reg_val_l, reg_val_h;
unsigned int frame_length_lines = 0;
unsigned int real_gain = exposure->gain[0];
// dev_info(&client->dev, "%s(%d %d %d %d)\n", __func__,
// exposure->integration_time[0], exposure->integration_time[1],
// exposure->gain[0], exposure->gain[1]);
mutex_lock(&dev->input_lock);
frame_length_lines = dev->hm2056_raw_res[dev->fmt_idx].frame_length_lines;
if (frame_length_lines < exposure->integration_time[0]) {
// dev_info(&client->dev, "%s update frame_length_line %d "
// "integration_time %d\n", __func__, frame_length_lines,
// exposure->integration_time[0]);
frame_length_lines = exposure->integration_time[0] + 5;
}
reg_val_l = (frame_length_lines - dev->hm2056_raw_res[dev->fmt_idx].height) & 0xFF;
reg_val_h = ((frame_length_lines - dev->hm2056_raw_res[dev->fmt_idx].height) & 0xFF00) >> 8;
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_BLANKING_ROW_H, reg_val_h);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_BLANKING_ROW_H error %x\n", __func__, reg_val_h);
return ret;
}
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_BLANKING_ROW_L, reg_val_l);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_BLANKING_ROW_L error %x\n", __func__, reg_val_l);
return ret;
}
reg_val_h = (exposure->integration_time[0] & 0xFF00) >> 8;
reg_val_l = exposure->integration_time[0] & 0xFF;
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_INTEGRATION_TIME_H, reg_val_h);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_INTEGRATION_TIME_H error %x\n", __func__, reg_val_h);
return ret;
}
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_INTEGRATION_TIME_L, reg_val_l);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_INTEGRATION_TIME_L error %x\n", __func__, reg_val_l);
return ret;
}
// DIT request the AG and DG can't more than 4x, so the max gain value will be 4xAG*4xDG=16x
if (16 <= real_gain && real_gain < 32) {
analog_gain = 0x0;
digital_gain = real_gain * 4;
} else if (32 <= real_gain && real_gain < 64) {
analog_gain = 0x1;
digital_gain = real_gain * 2;
} else if (64 <= real_gain && real_gain <= 256) {
analog_gain = 0x2;
digital_gain = real_gain;
} else
v4l2_err(client, "unsupported gain value\n");
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_AGAIN, analog_gain);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_AGAIN error %x\n", __func__, analog_gain);
return ret;
}
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_DGAIN, digital_gain);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_DGAIN error %x\n", __func__, digital_gain);
return ret;
}
ret = hm2056_raw_write_reg(client, HM2056_8BIT, HM2056_REG_COMMAND_UPDATE, 1);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "%s: write HM2056_REG_COMMAND_UPDATE error\n", __func__);
return ret;
}
mutex_unlock(&dev->input_lock);
return ret;
}
static long hm2056_raw_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
switch (cmd) {
case ATOMISP_IOC_S_EXPOSURE:
return hm2056_raw_s_exposure(sd, arg);
default:
return -EINVAL;
}
return 0;
}
static int hm2056_raw_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
*val = dev->hm2056_raw_res[dev->fmt_idx].bin_factor_x - 1;
return 0;
}
static int hm2056_raw_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
*val = dev->hm2056_raw_res[dev->fmt_idx].bin_factor_y - 1;
return 0;
}
static struct hm2056_raw_control hm2056_raw_controls[] = {
{
.qc = {
.id = V4L2_CID_EXPOSURE_ABSOLUTE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "exposure",
.minimum = 0x0,
.maximum = 0xffff,
.step = 0x01,
.default_value = 0x00,
.flags = 0,
},
.query = hm2056_raw_q_exposure,
},
{
.qc = {
.id = V4L2_CID_BIN_FACTOR_HORZ,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "horizontal binning factor",
.minimum = 0,
.maximum = 2,
.step = 1,
.default_value = 0,
.flags = 0,
},
.query = hm2056_raw_g_bin_factor_x,
},
{
.qc = {
.id = V4L2_CID_BIN_FACTOR_VERT,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "vertical binning factor",
.minimum = 0,
.maximum = 2,
.step = 1,
.default_value = 0,
.flags = 0,
},
.query = hm2056_raw_g_bin_factor_y,
},
};
#define N_CONTROLS (ARRAY_SIZE(hm2056_raw_controls))
static struct hm2056_raw_control *hm2056_raw_find_control(__u32 id)
{
int i;
for (i = 0; i < N_CONTROLS; i++) {
if (hm2056_raw_controls[i].qc.id == id) {
return &hm2056_raw_controls[i];
}
}
return NULL;
}
static int hm2056_raw_detect(struct hm2056_raw_device *dev, struct i2c_client *client)
{
struct i2c_adapter *adapter = client->adapter;
u32 reg_h, reg_l;
u32 chip_id;
int ret;
ATD_hm2056_raw_status = 0; //Add for ATD command+++
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "%s: i2c error", __func__);
return -ENODEV;
}
ret = hm2056_raw_read_reg(client, HM2056_8BIT, HM2056_REG_CHIP_ID_H, &reg_h);
if (ret) {
v4l2_err(client, "%s: fail to read HM2056_REG_CHIP_ID_H\n", __func__);
return -EINVAL;
}
ret = hm2056_raw_read_reg(client, HM2056_8BIT, HM2056_REG_CHIP_ID_L, &reg_l);
if (ret) {
v4l2_err(client, "%s: fail to read HM2056_REG_CHIP_ID_L\n", __func__);
return -EINVAL;
}
chip_id = reg_l | (reg_h << 8);
if (chip_id != HM2056_MOD_ID) {
dev_err(&client->dev, "%s: failed: client->addr = %x, id read %x\n",
__func__, client->addr, chip_id);
return -ENODEV;
}
else {
dev_info(&client->dev, "%s sensor ID is 0x%x\n", __func__, chip_id);
}
ATD_hm2056_raw_status = 1; //Add for ATD command+++
return 0;
}
static int
hm2056_raw_s_config(struct v4l2_subdev *sd, int irq, void *platform_data)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
if (NULL == platform_data)
return -ENODEV;
dev->platform_data =
(struct camera_sensor_platform_data *)platform_data;
mutex_lock(&dev->input_lock);
if (dev->platform_data->platform_init) {
ret = dev->platform_data->platform_init(client);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "hm2056_raw platform init err\n");
return ret;
}
}
ret = power_up(sd);
if (ret) {
v4l2_err(client, "hm2056_raw power-up err");
//goto fail_detect;
}
ret = dev->platform_data->csi_cfg(sd, 1);
if (ret) {
v4l2_err(client, "hm2056_raw config csi err");
goto fail_csi_cfg;
}
/* config & detect sensor */
ret = hm2056_raw_detect(dev, client);
if (ret) {
v4l2_err(client, "hm2056_raw_detect err s_config.\n");
//goto fail_detect;
}
ret = power_down(sd);
if (ret) {
mutex_unlock(&dev->input_lock);
v4l2_err(client, "hm2056_raw power down err");
return ret;
}
mutex_unlock(&dev->input_lock);
return 0;
fail_csi_cfg:
dev->platform_data->csi_cfg(sd, 0);
//fail_detect:
power_down(sd);
mutex_unlock(&dev->input_lock);
dev_err(&client->dev, "sensor power-gating failed\n");
return ret;
}
static int hm2056_raw_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
struct hm2056_raw_control *ctrl = hm2056_raw_find_control(qc->id);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (ctrl == NULL)
return -EINVAL;
mutex_lock(&dev->input_lock);
*qc = ctrl->qc;
mutex_unlock(&dev->input_lock);
return 0;
}
static int hm2056_raw_s_parm(struct v4l2_subdev *sd,
struct v4l2_streamparm *param)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (!param)
return -EINVAL;
dev->run_mode = param->parm.capture.capturemode;
mutex_lock(&dev->input_lock);
switch (dev->run_mode) {
case CI_MODE_VIDEO:
dev->hm2056_raw_res = hm2056_raw_res_video;
dev->n_res = N_RES_VIDEO;
break;
case CI_MODE_STILL_CAPTURE:
dev->hm2056_raw_res = hm2056_raw_res_still;
dev->n_res = N_RES_STILL;
break;
default:
dev->hm2056_raw_res = hm2056_raw_res_preview;
dev->n_res = N_RES_PREVIEW;
}
dev->fmt_idx = 0;
mutex_unlock(&dev->input_lock);
return 0;
}
static int hm2056_raw_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct hm2056_raw_control *octrl = hm2056_raw_find_control(ctrl->id);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
int ret;
if (octrl == NULL)
return -EINVAL;
mutex_lock(&dev->input_lock);
ret = octrl->query(sd, &ctrl->value);
mutex_unlock(&dev->input_lock);
return ret;
}
static int hm2056_raw_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct hm2056_raw_control *octrl = hm2056_raw_find_control(ctrl->id);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
int ret;
if (!octrl || !octrl->tweak)
return -EINVAL;
mutex_lock(&dev->input_lock);
ret = octrl->tweak(sd, ctrl->value);
mutex_unlock(&dev->input_lock);
return ret;
}
static int hm2056_raw_s_stream(struct v4l2_subdev *sd, int enable)
{
int ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
dev_info(&client->dev, "%s enable %d\n", __func__, enable);
mutex_lock(&dev->input_lock);
if (enable) {
ret = hm2056_raw_set_streaming(sd);
} else {
ret = hm2056_raw_set_suspend(sd);
}
mutex_unlock(&dev->input_lock);
return ret;
}
static int
hm2056_raw_enum_framesizes(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize)
{
unsigned int index = fsize->index;
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (index >= dev->n_res)
return -EINVAL;
mutex_lock(&dev->input_lock);
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
fsize->discrete.width = dev->hm2056_raw_res[index].width;
fsize->discrete.height = dev->hm2056_raw_res[index].height;
fsize->reserved[0] = dev->hm2056_raw_res[index].used;
mutex_unlock(&dev->input_lock);
return 0;
}
static int hm2056_raw_enum_frameintervals(struct v4l2_subdev *sd,
struct v4l2_frmivalenum *fival)
{
unsigned int index = fival->index;
int i;
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (index >= dev->n_res)
return -EINVAL;
mutex_lock(&dev->input_lock);
/* find out the first equal or bigger size */
for (i = 0; i < dev->n_res; i++) {
if ((dev->hm2056_raw_res[i].width >= fival->width) &&
(dev->hm2056_raw_res[i].height >= fival->height))
break;
}
if (i == dev->n_res)
i--;
index = i;
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
fival->discrete.numerator = 1;
fival->discrete.denominator = dev->hm2056_raw_res[index].fps;
mutex_unlock(&dev->input_lock);
return 0;
}
static int
hm2056_raw_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_HM2056_RAW, 0);
}
static int hm2056_raw_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (!code || code->index >= MAX_FMTS)
return -EINVAL;
mutex_lock(&dev->input_lock);
code->code = V4L2_MBUS_FMT_SGRBG8_1X8;
mutex_unlock(&dev->input_lock);
return code->code < 0 ? code->code : 0;
}
static int hm2056_raw_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse)
{
unsigned int index;
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (!fse)
return -EINVAL;
index = fse->index;
if (index >= dev->n_res)
return -EINVAL;
mutex_lock(&dev->input_lock);
fse->min_width = dev->hm2056_raw_res[index].width;
fse->min_height = dev->hm2056_raw_res[index].height;
fse->max_width = dev->hm2056_raw_res[index].width;
fse->max_height = dev->hm2056_raw_res[index].height;
mutex_unlock(&dev->input_lock);
return 0;
}
static struct v4l2_mbus_framefmt *
__hm2056_raw_get_pad_format(struct hm2056_raw_device *sensor,
struct v4l2_subdev_fh *fh, unsigned int pad,
enum v4l2_subdev_format_whence which)
{
struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
if (pad != 0) {
dev_err(&client->dev, "%s err. pad %x\n", __func__, pad);
return NULL;
}
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
return v4l2_subdev_get_try_format(fh, pad);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &sensor->format;
default:
return NULL;
}
}
static int
hm2056_raw_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct hm2056_raw_device *snr = to_hm2056_raw_sensor(sd);
struct v4l2_mbus_framefmt *format;
if (!fmt)
return -EINVAL;
format = __hm2056_raw_get_pad_format(snr, fh, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
fmt->format = *format;
return 0;
}
static int
hm2056_raw_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct hm2056_raw_device *snr = to_hm2056_raw_sensor(sd);
struct v4l2_mbus_framefmt *format;
if (!fmt)
return -EINVAL;
format = __hm2056_raw_get_pad_format(snr, fh, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
snr->format = fmt->format;
return 0;
}
static int hm2056_raw_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
{
struct hm2056_raw_device *dev = to_hm2056_raw_sensor(sd);
if (frames == NULL)
return -EINVAL;
mutex_lock(&dev->input_lock);
*frames = dev->hm2056_raw_res[dev->fmt_idx].skip_frames;
mutex_unlock(&dev->input_lock);
return 0;
}
static const struct v4l2_subdev_video_ops hm2056_raw_video_ops = {
.s_parm = hm2056_raw_s_parm,
.try_mbus_fmt = hm2056_raw_try_mbus_fmt,
.s_mbus_fmt = hm2056_raw_set_mbus_fmt,
.g_mbus_fmt = hm2056_raw_get_mbus_fmt,
.s_stream = hm2056_raw_s_stream,
.enum_framesizes = hm2056_raw_enum_framesizes,
.enum_frameintervals = hm2056_raw_enum_frameintervals,
};
static struct v4l2_subdev_sensor_ops hm2056_raw_sensor_ops = {
.g_skip_frames = hm2056_raw_g_skip_frames,
};
static const struct v4l2_subdev_core_ops hm2056_raw_core_ops = {
.g_chip_ident = hm2056_raw_g_chip_ident,
.queryctrl = hm2056_raw_queryctrl,
.g_ctrl = hm2056_raw_g_ctrl,
.s_ctrl = hm2056_raw_s_ctrl,
.s_power = hm2056_raw_s_power,
.ioctl = hm2056_raw_ioctl,
};
/* REVISIT: Do we need pad operations? */
static const struct v4l2_subdev_pad_ops hm2056_raw_pad_ops = {
.enum_mbus_code = hm2056_raw_enum_mbus_code,
.enum_frame_size = hm2056_raw_enum_frame_size,
.get_fmt = hm2056_raw_get_pad_format,
.set_fmt = hm2056_raw_set_pad_format,
};
static const struct v4l2_subdev_ops hm2056_raw_ops = {
.core = &hm2056_raw_core_ops,
.video = &hm2056_raw_video_ops,
.pad = &hm2056_raw_pad_ops,
.sensor = &hm2056_raw_sensor_ops,
};
static int hm2056_raw_remove(struct i2c_client *client)
{
struct hm2056_raw_device *dev;
struct v4l2_subdev *sd = i2c_get_clientdata(client);
dev = container_of(sd, struct hm2056_raw_device, sd);
dev->platform_data->csi_cfg(sd, 0);
if (dev->platform_data->platform_deinit)
dev->platform_data->platform_deinit();
v4l2_device_unregister_subdev(sd);
media_entity_cleanup(&dev->sd.entity);
kfree(dev);
return 0;
}
static int hm2056_raw_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct hm2056_raw_device *dev;
int ret;
/* Setup sensor configuration structure */
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
dev_err(&client->dev, "out of memory\n");
return -ENOMEM;
}
mutex_init(&dev->input_lock);
dev->fmt_idx = 0;
dev->hm2056_raw_res = hm2056_raw_res_preview;
dev->n_res = N_RES_STILL;
//Add for ATD command+++
dev->sensor_i2c_attribute.attrs = hm2056_raw_attributes;
// Register sysfs hooks
ret = sysfs_create_group(&client->dev.kobj, &dev->sensor_i2c_attribute);
if (ret) {
dev_err(&client->dev, "Not able to create the sysfs\n");
return ret;
}
//Add for ATD command---
v4l2_i2c_subdev_init(&dev->sd, client, &hm2056_raw_ops);
if (client->dev.platform_data) {
ret = hm2056_raw_s_config(&dev->sd, client->irq,
client->dev.platform_data);
if (ret) {
v4l2_device_unregister_subdev(&dev->sd);
kfree(dev);
return ret;
}
}
dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
dev->pad.flags = MEDIA_PAD_FL_SOURCE;
dev->format.code = V4L2_MBUS_FMT_SGRBG8_1X8;
dev->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
ret = media_entity_init(&dev->sd.entity, 1, &dev->pad, 0);
if (ret) {
hm2056_raw_remove(client);
}
main_sd = &dev->sd; //Add for ATD command+++
return ret;
}
MODULE_DEVICE_TABLE(i2c, hm2056_raw_id);
static struct i2c_driver hm2056_raw_driver = {
.driver = {
.owner = THIS_MODULE,
.name = HM2056_NAME,
},
.probe = hm2056_raw_probe,
.remove = hm2056_raw_remove,
.id_table = hm2056_raw_id,
};
static __init int init_hm2056_raw(void)
{
return i2c_add_driver(&hm2056_raw_driver);
}
static __exit void exit_hm2056_raw(void)
{
i2c_del_driver(&hm2056_raw_driver);
}
module_init(init_hm2056_raw);
module_exit(exit_hm2056_raw);
MODULE_AUTHOR("Hayden Huang <hayden.huang@intel.com>");
MODULE_DESCRIPTION("A low-level driver for Himax HM2056 sensors");
MODULE_LICENSE("GPL");
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