static ssize_t proximity_thresh_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
unsigned long threshold;
int err = 0;
err = strict_strtoul(buf, 10, &threshold);
if (err) {
pr_err("%s, conversion %s to number.\n",
__func__, buf);
return err;
}
err = gp2a_update_threshold(is_gp2a030a() ?
gp2a_original_image_030a : gp2a_original_image,
threshold, true);
if (err) {
pr_err("gp2a threshold(with register) update fail.\n");
return err;
}
return size;
}
static ssize_t proximity_thresh_diff_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct gp2a_data *gp2a = dev_get_drvdata(dev);
struct gp2a_platform_data *pdata = gp2a->pdata;
u8 threshold_diff = 0;
int err;
err = kstrtou8(buf, 10, &threshold_diff);
if (err) {
pr_err("%s, conversion %s to number.\n",
__func__, buf);
return err;
}
if ((threshold_diff > 0) && (threshold_diff < 5)) { /* update diff */
gp2a->thresh_diff = threshold_diff;
} else if (threshold_diff == 0) { /* reset to default */
pdata->gp2a_get_threshold(&gp2a->thresh_diff);
} else {
pr_err("%s: invalid value %d\n", __func__, *buf);
return -EINVAL;
}
gp2a_update_threshold(gp2a, is_gp2a030a() ?
gp2a_original_image_030a : gp2a_original_image,
(is_gp2a030a() ?
gp2a_original_image_030a[3][1] :
gp2a_original_image[3][1]), true);
return size;
}
static ssize_t proximity_thresh_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct gp2a_data *data = dev_get_drvdata(dev);
u8 threshold = 0;
int err = 0;
err = kstrtou8(buf, 10, &threshold);
if (err) {
pr_err("%s, conversion %s to number.\n",
__func__, buf);
return err;
}
err = gp2a_update_threshold(data, is_gp2a030a() ?
gp2a_original_image_030a : gp2a_original_image,
threshold, true);
if (err) {
pr_err("gp2a threshold(with register) update fail.\n");
return err;
}
return size;
}
static ssize_t proximity_thresh_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
unsigned long threshold;
int err = 0;
err = strict_strtoul(buf, 10, &threshold);
if (err) {
pr_err("%s, conversion %s to number.\n", __func__, buf);
return err;
}
printk(KERN_INFO "[GP2A] %s : threshold=%ld\n",__func__, threshold);
err = gp2a_update_threshold(threshold, true);
if (err) {
pr_err("gp2a threshold(with register) update fail.\n");
return err;
}
return size;
}
static int proximity_store_calibration(struct device *dev, bool do_calib)
{
struct gp2a_data *gp2a = dev_get_drvdata(dev);
struct file *cancel_filp = NULL;
mm_segment_t old_fs;
int err = 0;
if (do_calib) {
gp2a->cal_data = proximity_adc_read(gp2a);
if (is_gp2a030a())
gp2a_original_image_030a[3][1] += gp2a->cal_data;
else
gp2a_original_image[3][1] += gp2a->cal_data;
} else { /* reset */
gp2a->cal_data = 0;
if (is_gp2a030a())
gp2a_original_image_030a[3][1] =
gp2a->default_threshold;
else
gp2a_original_image[3][1] = gp2a->default_threshold;
}
/* Update cal data. */
gp2a_update_threshold(gp2a, is_gp2a030a() ?
gp2a_original_image_030a : gp2a_original_image,
(is_gp2a030a() ?
gp2a_original_image_030a[3][1] :
gp2a_original_image[3][1]), true);
pr_info("%s: prox_cal = %d, prox_thresh = 0x%x\n",
__func__, gp2a->cal_data, (is_gp2a030a() ?
gp2a_original_image_030a[3][1] :
gp2a_original_image[3][1]));
old_fs = get_fs();
set_fs(KERNEL_DS);
cancel_filp = filp_open(CALIBRATION_FILE_PATH,
O_CREAT | O_TRUNC | O_WRONLY | O_SYNC, 0666);
if (IS_ERR(cancel_filp)) {
pr_err("%s: Can't open cancelation file\n", __func__);
set_fs(old_fs);
err = PTR_ERR(cancel_filp);
return err;
}
err = cancel_filp->f_op->write(cancel_filp,
(char *)&gp2a->cal_data, sizeof(u8), &cancel_filp->f_pos);
if (err != sizeof(u8)) {
pr_err("%s: Can't write the cancel data to file\n", __func__);
err = -EIO;
}
filp_close(cancel_filp, current->files);
set_fs(old_fs);
return err;
}
static int gp2a_opt_probe(struct platform_device *pdev)
{
struct gp2a_data *gp2a;
struct gp2a_platform_data *pdata = pdev->dev.platform_data;
u8 value = 0;
int err = 0;
gprintk("probe start!\n");
if (!pdata) {
pr_err("%s: missing pdata!\n", __func__);
return err;
}
if (!pdata->gp2a_led_on) {
pr_err("%s: incomplete pdata!\n", __func__);
return err;
}
/* gp2a power on */
pdata->gp2a_led_on(true);
if (pdata->gp2a_get_threshold) {
gp2a_update_threshold(is_gp2a030a() ?
gp2a_original_image_030a : gp2a_original_image,
pdata->gp2a_get_threshold(), false);
}
/* allocate driver_data */
gp2a = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
if (!gp2a) {
pr_err("kzalloc error\n");
return -ENOMEM;
}
proximity_enable = 0;
proximity_sensor_detection = 0;
proximity_avg_on = 0;
gp2a->enabled = 0;
gp2a->pdata = pdata;
/* prox_timer settings. we poll for prox_avg values using a timer. */
hrtimer_init(&gp2a->prox_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
gp2a->prox_poll_delay = ns_to_ktime(2000 * NSEC_PER_MSEC);
gp2a->prox_timer.function = gp2a_prox_timer_func;
gp2a->prox_wq = create_singlethread_workqueue("gp2a_prox_wq");
if (!gp2a->prox_wq) {
err = -ENOMEM;
pr_err("%s: could not create prox workqueue\n", __func__);
goto err_create_prox_workqueue;
}
INIT_WORK(&gp2a->work_prox, gp2a_work_func_prox_avg);
INIT_WORK(&gp2a->work, gp2a_work_func_prox);
err = proximity_input_init(gp2a);
if (err < 0)
goto error_setup_reg;
err = sysfs_create_group(&gp2a->input_dev->dev.kobj,
&proximity_attribute_group);
if (err < 0)
goto err_sysfs_create_group_proximity;
/* set platdata */
platform_set_drvdata(pdev, gp2a);
/* wake lock init */
wake_lock_init(&gp2a->prx_wake_lock, WAKE_LOCK_SUSPEND,
"prx_wake_lock");
/* init i2c */
opt_i2c_init();
if (opt_i2c_client == NULL) {
pr_err("opt_probe failed : i2c_client is NULL\n");
goto err_no_device;
} else
printk(KERN_INFO "opt_i2c_client : (0x%p), address = %x\n",
opt_i2c_client, opt_i2c_client->addr);
/* GP2A Regs INIT SETTINGS and Check I2C communication */
value = 0x00;
/* shutdown mode op[3]=0 */
err = opt_i2c_write((u8) (COMMAND1), &value);
if (err < 0) {
pr_err("%s failed : threre is no such device.\n", __func__);
goto err_no_device;
}
/* Setup irq */
err = gp2a_setup_irq(gp2a);
if (err) {
pr_err("%s: could not setup irq\n", __func__);
goto err_setup_irq;
}
/* set sysfs for proximity sensor */
gp2a->proximity_dev = sensors_classdev_register("proximity_sensor");
if (IS_ERR(gp2a->proximity_dev)) {
pr_err("%s: could not create proximity_dev\n", __func__);
goto err_proximity_device_create;
}
if (device_create_file(gp2a->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(gp2a->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_file2;
}
if (device_create_file(gp2a->proximity_dev,
&dev_attr_prox_thresh) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_prox_thresh.attr.name);
goto err_proximity_device_create_file3;
}
if (device_create_file(gp2a->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_file4;
}
if (device_create_file(gp2a->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_file5;
}
if (device_create_file(gp2a->proximity_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_proximity_device_create_file6;
}
#ifdef CONFIG_SLP
device_init_wakeup(gp2a->proximity_dev, true);
#endif
dev_set_drvdata(gp2a->proximity_dev, gp2a);
device_init_wakeup(&pdev->dev, 1);
gprintk("probe success!\n");
return 0;
err_proximity_device_create_file6:
device_remove_file(gp2a->proximity_dev, &dev_attr_raw_data);
err_proximity_device_create_file5:
device_remove_file(gp2a->proximity_dev, &dev_attr_name);
err_proximity_device_create_file4:
device_remove_file(gp2a->proximity_dev, &dev_attr_vendor);
err_proximity_device_create_file3:
device_remove_file(gp2a->proximity_dev, &dev_attr_prox_avg);
err_proximity_device_create_file2:
device_remove_file(gp2a->proximity_dev, &dev_attr_state);
err_proximity_device_create_file1:
sensors_classdev_unregister(gp2a->proximity_dev);
err_proximity_device_create:
gpio_free(pdata->p_out);
err_setup_irq:
err_no_device:
sysfs_remove_group(&gp2a->input_dev->dev.kobj,
&proximity_attribute_group);
wake_lock_destroy(&gp2a->prx_wake_lock);
err_sysfs_create_group_proximity:
input_unregister_device(gp2a->input_dev);
error_setup_reg:
destroy_workqueue(gp2a->prox_wq);
err_create_prox_workqueue:
kfree(gp2a);
return err;
}
static int gp2a_opt_probe(struct platform_device *pdev)
{
struct gp2a_data *gp2a;
struct gp2a_platform_data *pdata = pdev->dev.platform_data;
u8 value = 0;
int err = 0;
printk(KERN_INFO"[GP2A] %s : probe start!\n", __func__);
if (!pdata) {
pr_err("%s: missing pdata!\n", __func__);
return err;
}
/*PROXY_EN*/
if (gpio_request(pdata ->power_gpio, "PROXY_EN")) {
printk(KERN_ERR "Request GPIO_%d failed!\n", pdata ->power_gpio);
}
if (pdata->gp2a_led_on)
pdata->gp2a_led_on(1);
if (pdata->gp2a_get_threshold) {
gp2a_update_threshold(pdata->gp2a_get_threshold(), false);
}
/* allocate driver_data */
gp2a = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
if (!gp2a) {
pr_err("kzalloc error\n");
return -ENOMEM;
}
gp2a->proximity_enabled = 0;
gp2a->pdata = pdata;
gp2a->light_enabled = 0;
gp2a->light_delay = SENSOR_DEFAULT_DELAY;
gp2a->testmode = 0;
gp2a->light_level_state = 0;
if (pdata->power_on) {
pdata->power_on(1);
msleep(5);
}
INIT_DELAYED_WORK(&gp2a->light_work, gp2a_work_func_light);
INIT_WORK(&gp2a->proximity_work, gp2a_work_func_prox);
/*misc device registration*/
err = misc_register(&gp2a_opt_misc_device);
if( err < 0 )
goto error_setup_reg_misc;
err = proximity_input_init(gp2a);
if (err < 0)
goto error_setup_reg_prox;
err = light_input_init(gp2a);
if (err < 0)
goto error_setup_reg_light;
err = sysfs_create_group(&gp2a->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
if (err < 0)
goto err_sysfs_create_group_proximity;
err = sysfs_create_group(&gp2a->light_input_dev->dev.kobj,
&lightsensor_attribute_group);
if (err)
goto err_sysfs_create_group_light;
mutex_init(&gp2a->light_mutex);
mutex_init(&gp2a->data_mutex);
/* set platdata */
platform_set_drvdata(pdev, gp2a);
/* wake lock init */
wake_lock_init(&gp2a->prx_wake_lock, WAKE_LOCK_SUSPEND,
"prx_wake_lock");
/* init i2c */
err = opt_i2c_init();
if(err < 0)
{
pr_err("opt_probe failed : i2c_client is NULL\n");
goto err_no_device;
}
else
printk(KERN_INFO "[GP2A] opt_i2c_client : (0x%p)\n",opt_i2c_client);
/* GP2A Regs INIT SETTINGS and Check I2C communication */
value = 0x00;
err = opt_i2c_write((u8) (COMMAND1), &value); /* shutdown mode op[3]=0 */
if (err < 0) {
pr_err("%s failed : threre is no such device.\n", __func__);
goto err_no_device;
}
/* Setup irq */
err = gp2a_setup_irq(gp2a);
if (err) {
pr_err("%s: could not setup irq\n", __func__);
goto err_setup_irq;
}
/* set sysfs for proximity sensor */
gp2a->proximity_dev = device_create(sensors_class,
NULL, 0, NULL, "proximity_sensor");
if (IS_ERR(gp2a->proximity_dev)) {
pr_err("%s: could not create proximity_dev\n", __func__);
goto err_proximity_device_create;
}
gp2a->light_dev = device_create(sensors_class,
NULL, 0, NULL, "light_sensor");
if (IS_ERR(gp2a->light_dev)) {
pr_err("%s: could not create light_dev\n", __func__);
goto err_light_device_create;
}
if (device_create_file(gp2a->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(gp2a->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_file2;
}
if (device_create_file(gp2a->proximity_dev,
&dev_attr_proximity_enable) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_proximity_enable.attr.name);
goto err_proximity_device_create_file3;
}
if (device_create_file(gp2a->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_file4;
}
if (device_create_file(gp2a->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_file5;
}
if (device_create_file(gp2a->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_file6;
}
if (device_create_file(gp2a->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_file7;
}
if (device_create_file(gp2a->proximity_dev,
&dev_attr_prox_thresh) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_prox_thresh.attr.name);
goto err_proximity_device_create_file8;
}
if (device_create_file(gp2a->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(gp2a->light_dev,
&dev_attr_light_enable) < 0) {
pr_err("%s: could not create device file(%s)!\n", __func__,
dev_attr_light_enable.attr.name);
goto err_light_device_create_file2;
}
if (device_create_file(gp2a->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(gp2a->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;
}
if (device_create_file(gp2a->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_file5;
}
dev_set_drvdata(gp2a->proximity_dev, gp2a);
dev_set_drvdata(gp2a->light_dev, gp2a);
device_init_wakeup(&pdev->dev, 1);
if (pdata->gp2a_led_on) {
pdata->gp2a_led_on(0);
printk(KERN_INFO "[GP2A] gpio_get_value of GPIO(%d) is %d\n",pdata ->power_gpio,
gpio_get_value(pdata ->power_gpio));
}
/* set initial proximity value as 1 */
input_report_abs(gp2a->proximity_input_dev, ABS_DISTANCE, 1);
input_sync(gp2a->proximity_input_dev);
gp2a_opt_data = gp2a;
printk(KERN_INFO"[GP2A] %s : probe success!\n", __func__);
return 0;
err_light_device_create_file5:
device_remove_file(gp2a->light_dev, &dev_attr_name);
err_light_device_create_file4:
device_remove_file(gp2a->light_dev, &dev_attr_vendor);
err_light_device_create_file3:
device_remove_file(gp2a->light_dev, &dev_attr_light_enable);
err_light_device_create_file2:
device_remove_file(gp2a->light_dev, &dev_attr_lux);
err_light_device_create_file1:
device_remove_file(gp2a->proximity_dev, &dev_attr_prox_thresh);
err_proximity_device_create_file8:
device_remove_file(gp2a->proximity_dev, &dev_attr_prox_offset_pass);
err_proximity_device_create_file7:
device_remove_file(gp2a->proximity_dev, &dev_attr_prox_cal);
err_proximity_device_create_file6:
device_remove_file(gp2a->proximity_dev, &dev_attr_name);
err_proximity_device_create_file5:
device_remove_file(gp2a->proximity_dev, &dev_attr_vendor);
err_proximity_device_create_file4:
device_remove_file(gp2a->proximity_dev, &dev_attr_proximity_enable);
err_proximity_device_create_file3:
device_remove_file(gp2a->proximity_dev, &dev_attr_prox_avg);
err_proximity_device_create_file2:
device_remove_file(gp2a->proximity_dev, &dev_attr_state);
err_proximity_device_create_file1:
err_light_device_create:
device_destroy(sensors_class, 0);
err_proximity_device_create:
gpio_free(pdata->p_out);
err_setup_irq:
err_no_device:
wake_lock_destroy(&gp2a->prx_wake_lock);
mutex_destroy(&gp2a->light_mutex);
mutex_destroy(&gp2a->data_mutex);
sysfs_remove_group(&gp2a->light_input_dev->dev.kobj,
&lightsensor_attribute_group);
err_sysfs_create_group_light:
sysfs_remove_group(&gp2a->proximity_input_dev->dev.kobj,
&proximity_attribute_group);
err_sysfs_create_group_proximity:
input_unregister_device(gp2a->light_input_dev);
error_setup_reg_light:
input_unregister_device(gp2a->proximity_input_dev);
error_setup_reg_prox:
misc_deregister(&gp2a_opt_misc_device);
error_setup_reg_misc:
if (pdata->power_on)
pdata->power_on(0);
kfree(gp2a);
return err;
}