static int cm36686_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret = -ENODEV;
struct cm36686_data *cm36686 = NULL;
struct cm36686_platform_data *pdata = NULL;
int err;
pr_info("[SENSOR] %s: Probe Start!\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("[SENSOR] %s: i2c functionality check failed!\n", __func__);
return ret;
}
cm36686 = kzalloc(sizeof(struct cm36686_data), GFP_KERNEL);
if (!cm36686) {
pr_err
("[SENSOR] %s: failed to alloc memory for RGB sensor module data\n",
__func__);
return -ENOMEM;
}
if(client->dev.of_node) {
pdata = devm_kzalloc (&client->dev ,
sizeof(struct cm36686_platform_data ), GFP_KERNEL);
if(!pdata) {
dev_err(&client->dev, "Failed to allocate memory\n");
if(cm36686)
kfree(cm36686);
return -ENOMEM;
}
err = cm36686_parse_dt(&client->dev, pdata);
if(err)
goto err_devicetree;
} else
pdata = client->dev.platform_data;
if (!pdata) {
pr_err("%s: missing pdata!\n", __func__);
if(cm36686)
kfree(cm36686);
return ret;
}
prox_regulator_onoff(&client->dev,1);
cm36686->pdata = pdata;
cm36686->i2c_client = client;
i2c_set_clientdata(client, cm36686);
mutex_init(&cm36686->power_lock);
mutex_init(&cm36686->read_lock);
/* wake lock init for proximity sensor */
wake_lock_init(&cm36686->prx_wake_lock, WAKE_LOCK_SUSPEND,
"prx_wake_lock");
#if defined(CONFIG_SENSORS_CM36686_LEDA_EN_GPIO)
/* setup leden_gpio */
ret = cm36686_setup_leden_gpio(cm36686);
if (ret) {
pr_err("%s: could not setup leden_gpio\n", __func__);
goto err_setup_leden_gpio;
}
cm36686_leden_gpio_onoff(cm36686, 1);
#else
prox_led_onoff(cm36686, 1);
#endif
/* Check if the device is there or not. */
ret = cm36686_i2c_write_word(cm36686, REG_CS_CONF1, 0x0001);
if (ret < 0) {
pr_err("[SENSOR] %s: cm36686 is not connected.(%d)\n", __func__, ret);
goto err_setup_reg;
}
/* setup initial registers */
ret = cm36686_setup_reg(cm36686);
if (ret < 0) {
pr_err("[SENSOR] %s: could not setup regs\n", __func__);
goto err_setup_reg;
}
#if defined(CONFIG_SENSORS_CM36686_LEDA_EN_GPIO)
cm36686_leden_gpio_onoff(cm36686, 0);
#else
prox_led_onoff(cm36686, 0);
#endif
/* allocate proximity input_device */
cm36686->proximity_input_dev = input_allocate_device();
if (!cm36686->proximity_input_dev) {
pr_err("%s: could not allocate proximity input device\n",
__func__);
goto err_input_allocate_device_proximity;
}
input_set_drvdata(cm36686->proximity_input_dev, cm36686);
cm36686->proximity_input_dev->name = "proximity_sensor";
input_set_capability(cm36686->proximity_input_dev, EV_ABS,
ABS_DISTANCE);
input_set_abs_params(cm36686->proximity_input_dev, ABS_DISTANCE, 0, 1,
0, 0);
ret = input_register_device(cm36686->proximity_input_dev);
if (ret < 0) {
input_free_device(cm36686->proximity_input_dev);
pr_err("[SENSOR] %s: could not register input device\n", __func__);
goto err_input_register_device_proximity;
}
ret = sensors_create_symlink(&cm36686->proximity_input_dev->dev.kobj,
cm36686->proximity_input_dev->name);
if (ret < 0) {
pr_err("[SENSOR] %s: create_symlink error\n", __func__);
goto err_sensors_create_symlink_prox;
}
ret = sysfs_create_group(&cm36686->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
if (ret) {
pr_err("[SENSOR] %s: could not create sysfs group\n", __func__);
goto err_sysfs_create_group_proximity;
}
/* setup irq */
ret = cm36686_setup_irq(cm36686);
if (ret) {
pr_err("%s: could not setup irq\n", __func__);
goto err_setup_irq;
}
/* For factory test mode, we use timer to get average proximity data. */
/* prox_timer settings. we poll for light values using a timer. */
hrtimer_init(&cm36686->prox_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cm36686->prox_poll_delay = ns_to_ktime(2000 * NSEC_PER_MSEC);/*2 sec*/
cm36686->prox_timer.function = cm36686_prox_timer_func;
/* the timer just fires off a work queue request. we need a thread
to read the i2c (can be slow and blocking). */
cm36686->prox_wq = create_singlethread_workqueue("cm36686_prox_wq");
if (!cm36686->prox_wq) {
ret = -ENOMEM;
pr_err("[SENSOR] %s: could not create prox workqueue\n", __func__);
goto err_create_prox_workqueue;
}
/* this is the thread function we run on the work queue */
INIT_WORK(&cm36686->work_prox, cm36686_work_func_prox);
/* allocate lightsensor input_device */
cm36686->light_input_dev = input_allocate_device();
if (!cm36686->light_input_dev) {
pr_err("%s: could not allocate light input device\n", __func__);
goto err_input_allocate_device_light;
}
input_set_drvdata(cm36686->light_input_dev, cm36686);
cm36686->light_input_dev->name = "light_sensor";
input_set_capability(cm36686->light_input_dev, EV_REL, REL_MISC);
input_set_capability(cm36686->light_input_dev, EV_REL, REL_DIAL);
input_set_capability(cm36686->light_input_dev, EV_REL, REL_WHEEL);
ret = input_register_device(cm36686->light_input_dev);
if (ret < 0) {
input_free_device(cm36686->light_input_dev);
pr_err("%s: could not register input device\n", __func__);
goto err_input_register_device_light;
}
ret = sensors_create_symlink(&cm36686->light_input_dev->dev.kobj,
cm36686->light_input_dev->name);
if (ret < 0) {
pr_err("[SENSOR] %s: create_symlink error\n", __func__);
goto err_sensors_create_symlink_light;
}
ret = sysfs_create_group(&cm36686->light_input_dev->dev.kobj,
&light_attribute_group);
if (ret) {
pr_err("[SENSOR] %s: could not create sysfs group\n", __func__);
goto err_sysfs_create_group_light;
}
/* light_timer settings. we poll for light values using a timer. */
hrtimer_init(&cm36686->light_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cm36686->light_poll_delay = ns_to_ktime(200 * NSEC_PER_MSEC);
cm36686->light_timer.function = cm36686_light_timer_func;
/* the timer just fires off a work queue request. we need a thread
to read the i2c (can be slow and blocking). */
cm36686->light_wq = create_singlethread_workqueue("cm36686_light_wq");
if (!cm36686->light_wq) {
ret = -ENOMEM;
pr_err("[SENSOR] %s: could not create light workqueue\n", __func__);
goto err_create_light_workqueue;
}
/* this is the thread function we run on the work queue */
INIT_WORK(&cm36686->work_light, cm36686_work_func_light);
/* set sysfs for proximity sensor */
ret = sensors_register(cm36686->proximity_dev,
cm36686, prox_sensor_attrs,
"proximity_sensor");
if (ret) {
pr_err("[SENSOR] %s: cound not register\
proximity sensor device(%d).\n",
__func__, ret);
goto prox_sensor_register_failed;
}
/* set sysfs for light sensor */
ret = sensors_register(cm36686->light_dev,
cm36686, light_sensor_attrs,
"light_sensor");
if (ret) {
pr_err("[SENSOR] %s: cound not register\
light sensor device(%d).\n",
__func__, ret);
goto light_sensor_register_failed;
}
pr_info("[SENSOR] %s is success.\n", __func__);
goto done;
err_devicetree:
printk("\n error in device tree");
/* error, unwind it all */
light_sensor_register_failed:
sensors_unregister(cm36686->proximity_dev, prox_sensor_attrs);
prox_sensor_register_failed:
destroy_workqueue(cm36686->light_wq);
err_create_light_workqueue:
sysfs_remove_group(&cm36686->light_input_dev->dev.kobj,
&light_attribute_group);
err_sysfs_create_group_light:
sensors_remove_symlink(&cm36686->light_input_dev->dev.kobj,
cm36686->light_input_dev->name);
err_sensors_create_symlink_light:
input_unregister_device(cm36686->light_input_dev);
err_input_register_device_light:
err_input_allocate_device_light:
destroy_workqueue(cm36686->prox_wq);
err_create_prox_workqueue:
free_irq(cm36686->irq, cm36686);
gpio_free(cm36686->pdata->irq);
err_setup_irq:
sysfs_remove_group(&cm36686->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
err_sysfs_create_group_proximity:
sensors_remove_symlink(&cm36686->proximity_input_dev->dev.kobj,
cm36686->proximity_input_dev->name);
err_sensors_create_symlink_prox:
input_unregister_device(cm36686->proximity_input_dev);
err_input_register_device_proximity:
err_input_allocate_device_proximity:
err_setup_reg:
#if defined(CONFIG_SENSORS_CM36686_LEDA_EN_GPIO)
cm36686_leden_gpio_onoff(cm36686, 0);
gpio_free(cm36686->pdata->leden_gpio);
err_setup_leden_gpio:
#else
prox_led_onoff(cm36686, 0);
#endif
wake_lock_destroy(&cm36686->prx_wake_lock);
mutex_destroy(&cm36686->read_lock);
mutex_destroy(&cm36686->power_lock);
kfree(cm36686);
prox_regulator_onoff(&client->dev,0);
done:
return ret;
}
static int cm36686_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret = -ENODEV;
struct cm36686_data *cm36686 = NULL;
pr_info("%s is called.\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("%s: i2c functionality check failed!\n", __func__);
return ret;
}
cm36686 = kzalloc(sizeof(struct cm36686_data), GFP_KERNEL);
if (!cm36686) {
pr_err("%s: failed to alloc memory for cm36686 module data\n",
__func__);
return -ENOMEM;
}
cm36686->pdata = client->dev.platform_data;
cm36686->i2c_client = client;
i2c_set_clientdata(client, cm36686);
mutex_init(&cm36686->power_lock);
mutex_init(&cm36686->read_lock);
if(cm36686->pdata->cm36686_light_power != NULL) {
cm36686->cm36686_light_vddpower = cm36686->pdata->cm36686_light_power;
if (cm36686->cm36686_light_vddpower)
cm36686->cm36686_light_vddpower(true);
}
if(cm36686->pdata->cm36686_proxi_power != NULL) {
cm36686->cm36686_proxi_vddpower = cm36686->pdata->cm36686_proxi_power;
if (cm36686->cm36686_proxi_vddpower)
cm36686->cm36686_proxi_vddpower(true);
}
/* wake lock init for proximity sensor */
wake_lock_init(&cm36686->prx_wake_lock, WAKE_LOCK_SUSPEND,
"prx_wake_lock");
if (cm36686->pdata->cm36686_led_on) {
cm36686->pdata->cm36686_led_on(true);
msleep(20);
}
/* Check if the device is there or not. */
ret = cm36686_i2c_write_word(cm36686, REG_CS_CONF1, 0x0001);
if (ret < 0) {
pr_err("%s: cm36686 is not connected.(%d)\n", __func__, ret);
goto err_setup_reg;
}
/* setup initial registers */
ret = cm36686_setup_reg(cm36686);
if (ret < 0) {
pr_err("%s: could not setup regs\n", __func__);
goto err_setup_reg;
}
if (cm36686->pdata->cm36686_led_on)
cm36686->pdata->cm36686_led_on(false);
if (cm36686->cm36686_light_vddpower)
cm36686->cm36686_light_vddpower(false);
if (cm36686->cm36686_proxi_vddpower)
cm36686->cm36686_proxi_vddpower(false);
/* allocate proximity input_device */
cm36686->proximity_input_dev = input_allocate_device();
if (!cm36686->proximity_input_dev) {
pr_err("%s: could not allocate proximity input device\n",
__func__);
goto err_input_allocate_device_proximity;
}
input_set_drvdata(cm36686->proximity_input_dev, cm36686);
cm36686->proximity_input_dev->name = "proximity_sensor";
input_set_capability(cm36686->proximity_input_dev, EV_ABS,
ABS_DISTANCE);
input_set_abs_params(cm36686->proximity_input_dev, ABS_DISTANCE, 0, 1,
0, 0);
ret = input_register_device(cm36686->proximity_input_dev);
if (ret < 0) {
input_free_device(cm36686->proximity_input_dev);
pr_err("%s: could not register input device\n", __func__);
goto err_input_register_device_proximity;
}
ret = sysfs_create_group(&cm36686->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
if (ret) {
pr_err("%s: could not create sysfs group\n", __func__);
goto err_sysfs_create_group_proximity;
}
#if defined(CONFIG_SENSOR_USE_SYMLINK)
ret = sensors_initialize_symlink(cm36686->proximity_input_dev);
if (ret < 0) {
pr_err("%s - proximity_sensors_initialize_symlink error(%d).\n",
__func__, ret);
goto err_setup_irq;
}
#endif
/* setup irq */
ret = cm36686_setup_irq(cm36686);
if (ret) {
pr_err("%s: could not setup irq\n", __func__);
goto err_setup_irq;
}
/* For factory test mode, we use timer to get average proximity data. */
/* prox_timer settings. we poll for light values using a timer. */
hrtimer_init(&cm36686->prox_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cm36686->prox_poll_delay = ns_to_ktime(2000 * NSEC_PER_MSEC);/*2 sec*/
cm36686->prox_timer.function = cm36686_prox_timer_func;
/* the timer just fires off a work queue request. we need a thread
to read the i2c (can be slow and blocking). */
cm36686->prox_wq = create_singlethread_workqueue("cm36686_prox_wq");
if (!cm36686->prox_wq) {
ret = -ENOMEM;
pr_err("%s: could not create prox workqueue\n", __func__);
goto err_create_prox_workqueue;
}
/* this is the thread function we run on the work queue */
INIT_WORK(&cm36686->work_prox, cm36686_work_func_prox);
/* allocate lightsensor input_device */
cm36686->light_input_dev = input_allocate_device();
if (!cm36686->light_input_dev) {
pr_err("%s: could not allocate light input device\n", __func__);
goto err_input_allocate_device_light;
}
input_set_drvdata(cm36686->light_input_dev, cm36686);
cm36686->light_input_dev->name = "light_sensor";
input_set_capability(cm36686->light_input_dev, EV_REL, REL_MISC);
input_set_capability(cm36686->light_input_dev, EV_REL, REL_DIAL);
input_set_capability(cm36686->light_input_dev, EV_REL, REL_WHEEL);
ret = input_register_device(cm36686->light_input_dev);
if (ret < 0) {
input_free_device(cm36686->light_input_dev);
pr_err("%s: could not register input device\n", __func__);
goto err_input_register_device_light;
}
ret = sysfs_create_group(&cm36686->light_input_dev->dev.kobj,
&light_attribute_group);
if (ret) {
pr_err("%s: could not create sysfs group\n", __func__);
goto err_sysfs_create_group_light;
}
#if defined(CONFIG_SENSOR_USE_SYMLINK)
ret = sensors_initialize_symlink(cm36686->light_input_dev);
if (ret < 0) {
pr_err("%s - light_sensors_initialize_symlink error(%d).\n",
__func__, ret);
goto err_create_light_workqueue;
}
#endif
/* light_timer settings. we poll for light values using a timer. */
hrtimer_init(&cm36686->light_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cm36686->light_poll_delay = ns_to_ktime(200 * NSEC_PER_MSEC);
cm36686->light_timer.function = cm36686_light_timer_func;
/* the timer just fires off a work queue request. we need a thread
to read the i2c (can be slow and blocking). */
cm36686->light_wq = create_singlethread_workqueue("cm36686_light_wq");
if (!cm36686->light_wq) {
ret = -ENOMEM;
pr_err("%s: could not create light workqueue\n", __func__);
goto err_create_light_workqueue;
}
/* this is the thread function we run on the work queue */
INIT_WORK(&cm36686->work_light, cm36686_work_func_light);
/* set sysfs for proximity sensor */
cm36686->proximity_dev = sensors_classdev_register("proximity_sensor");
if (IS_ERR(cm36686->proximity_dev)) {
pr_err("%s: could not create proximity_dev\n", __func__);
goto err_proximity_device_create;
}
if (device_create_file(cm36686->proximity_dev, &dev_attr_state) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_state.attr.name);
goto err_proximity_device_create_file1;
}
if (device_create_file(cm36686->proximity_dev, &attr_prox_raw) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
attr_prox_raw.attr.name);
goto err_proximity_device_create_file2;
}
#ifdef CM36686_CANCELATION
if (device_create_file(cm36686->proximity_dev,
&dev_attr_prox_cal) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_prox_cal.attr.name);
goto err_proximity_device_create_file3;
}
if (device_create_file(cm36686->proximity_dev,
&dev_attr_prox_offset_pass) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_prox_offset_pass.attr.name);
goto err_proximity_device_create_file4;
}
#endif
if (device_create_file(cm36686->proximity_dev,
&dev_attr_prox_avg) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_prox_avg.attr.name);
goto err_proximity_device_create_file5;
}
if (device_create_file(cm36686->proximity_dev,
&dev_attr_thresh_high) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_thresh_high.attr.name);
goto err_proximity_device_create_file6;
}
if (device_create_file(cm36686->proximity_dev,
&dev_attr_vendor) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_vendor.attr.name);
goto err_proximity_device_create_file7;
}
if (device_create_file(cm36686->proximity_dev,
&dev_attr_name) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_name.attr.name);
goto err_proximity_device_create_file8;
}
if (device_create_file(cm36686->proximity_dev,
&dev_attr_thresh_low) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_thresh_low.attr.name);
goto err_proximity_device_create_file9;
}
dev_set_drvdata(cm36686->proximity_dev, cm36686);
/* set sysfs for light sensor */
cm36686->light_dev = sensors_classdev_register("light_sensor");
if (IS_ERR(cm36686->light_dev)) {
pr_err("%s: could not create light_dev\n", __func__);
goto err_light_device_create;
}
if (device_create_file(cm36686->light_dev, &dev_attr_lux) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_lux.attr.name);
goto err_light_device_create_file1;
}
if (device_create_file(cm36686->light_dev, &dev_attr_raw_data) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_raw_data.attr.name);
goto err_light_device_create_file2;
}
if (device_create_file(cm36686->light_dev, &dev_attr_vendor) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_vendor.attr.name);
goto err_light_device_create_file3;
}
if (device_create_file(cm36686->light_dev, &dev_attr_name) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_name.attr.name);
goto err_light_device_create_file4;
}
dev_set_drvdata(cm36686->light_dev, cm36686);
pr_info("%s is success.\n", __func__);
goto done;
/* error, unwind it all */
err_light_device_create_file4:
device_remove_file(cm36686->light_dev, &dev_attr_vendor);
err_light_device_create_file3:
device_remove_file(cm36686->light_dev, &dev_attr_raw_data);
err_light_device_create_file2:
device_remove_file(cm36686->light_dev, &dev_attr_lux);
err_light_device_create_file1:
sensors_classdev_unregister(cm36686->light_dev);
err_light_device_create:
device_remove_file(cm36686->proximity_dev, &dev_attr_thresh_low);
err_proximity_device_create_file9:
device_remove_file(cm36686->proximity_dev, &dev_attr_name);
err_proximity_device_create_file8:
device_remove_file(cm36686->proximity_dev, &dev_attr_vendor);
err_proximity_device_create_file7:
device_remove_file(cm36686->proximity_dev, &dev_attr_thresh_high);
err_proximity_device_create_file6:
device_remove_file(cm36686->proximity_dev, &dev_attr_prox_avg);
err_proximity_device_create_file5:
#ifdef CM36686_CANCELATION
device_remove_file(cm36686->proximity_dev, &dev_attr_prox_offset_pass);
err_proximity_device_create_file4:
device_remove_file(cm36686->proximity_dev, &dev_attr_prox_cal);
err_proximity_device_create_file3:
#endif
device_remove_file(cm36686->proximity_dev, &attr_prox_raw);
err_proximity_device_create_file2:
device_remove_file(cm36686->proximity_dev, &dev_attr_state);
err_proximity_device_create_file1:
sensors_classdev_unregister(cm36686->proximity_dev);
err_proximity_device_create:
destroy_workqueue(cm36686->light_wq);
err_create_light_workqueue:
sysfs_remove_group(&cm36686->light_input_dev->dev.kobj,
&light_attribute_group);
err_sysfs_create_group_light:
input_unregister_device(cm36686->light_input_dev);
err_input_register_device_light:
err_input_allocate_device_light:
destroy_workqueue(cm36686->prox_wq);
err_create_prox_workqueue:
free_irq(cm36686->irq, cm36686);
gpio_free(cm36686->pdata->irq);
err_setup_irq:
sysfs_remove_group(&cm36686->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
err_sysfs_create_group_proximity:
input_unregister_device(cm36686->proximity_input_dev);
err_input_register_device_proximity:
err_input_allocate_device_proximity:
err_setup_reg:
if (cm36686->pdata->cm36686_led_on)
cm36686->pdata->cm36686_led_on(false);
if (cm36686->cm36686_light_vddpower)
cm36686->cm36686_light_vddpower(false);
if (cm36686->cm36686_proxi_vddpower)
cm36686->cm36686_proxi_vddpower(false);
wake_lock_destroy(&cm36686->prx_wake_lock);
mutex_destroy(&cm36686->read_lock);
mutex_destroy(&cm36686->power_lock);
kfree(cm36686);
done:
return ret;
}
