static ssize_t proximity_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ssp_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", get_proximity_rawdata(data));
}
static int proximity_store_cancelation(struct ssp_data *data, int iCalCMD)
{
int iRet = 0;
mm_segment_t old_fs;
struct file *cancel_filp = NULL;
if (iCalCMD) {
data->uCrosstalk = get_proximity_rawdata(data);
iRet = get_proximity_threshold(data);
} else {
data->uProxHiThresh = data->uProxHiThresh_default;
data->uProxLoThresh = data->uProxLoThresh_default;
data->uProxCanc = 0;
}
if (iRet != ERROR)
set_proximity_threshold(data, data->uProxHiThresh,
data->uProxLoThresh);
old_fs = get_fs();
set_fs(KERNEL_DS);
cancel_filp = filp_open(CANCELATION_FILE_PATH,
O_CREAT | O_TRUNC | O_WRONLY | O_SYNC, 0660);
if (IS_ERR(cancel_filp)) {
pr_err("%s: Can't open cancelation file\n", __func__);
set_fs(old_fs);
iRet = PTR_ERR(cancel_filp);
return iRet;
}
iRet = cancel_filp->f_op->write(cancel_filp, (u8 *)&data->uProxCanc,
sizeof(unsigned int), &cancel_filp->f_pos);
if (iRet != sizeof(unsigned int)) {
pr_err("%s: Can't write the cancel data to file\n", __func__);
iRet = -EIO;
}
filp_close(cancel_filp, current->files);
set_fs(old_fs);
return iRet;
}
static int proximity_store_cancelation(struct ssp_data *data, int iCalCMD)
{
int iRet = 0;
mm_segment_t old_fs;
struct file *cancel_filp = NULL;
if (iCalCMD) {
data->uProxThresh = CANCELATION_THRESHOLD;
data->uProxCanc = get_proximity_rawdata(data);
} else {
data->uProxThresh = DEFUALT_THRESHOLD;
data->uProxCanc = 0;
}
set_proximity_threshold(data);
old_fs = get_fs();
set_fs(KERNEL_DS);
cancel_filp = filp_open(CANCELATION_FILE_PATH,
O_CREAT | O_TRUNC | O_WRONLY, 0666);
if (IS_ERR(cancel_filp)) {
pr_err("%s: Can't open cancelation file\n", __func__);
set_fs(old_fs);
iRet = PTR_ERR(cancel_filp);
return iRet;
}
iRet = cancel_filp->f_op->write(cancel_filp, (u8 *)&data->uProxCanc,
sizeof(u8), &cancel_filp->f_pos);
if (iRet != sizeof(u8)) {
pr_err("%s: Can't write the cancel data to file\n", __func__);
iRet = -EIO;
}
filp_close(cancel_filp, current->files);
set_fs(old_fs);
return iRet;
}
