static ssize_t show_linear(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm3533_bl *bl = dev_get_drvdata(dev);
u8 val;
u8 mask;
int linear;
int ret;
int i = 0;
for(i=0x10; i<0xB3; i++)
{
ret = lm3533_read(bl->lm3533, i, &val);
if(ret)
{
printk("in %s,can not read [0x%02x]\n",__func__,i);
}
else
{
printk("in %s,read [0x%02x]: 0x%02x\n",__func__,i,val);
}
}
ret = lm3533_read(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, &val);
if (ret)
return ret;
mask = 1 << (2 * lm3533_bl_get_ctrlbank_id(bl) + 1);
if (val & mask)
linear = 1;
else
linear = 0;
return scnprintf(buf, PAGE_SIZE, "%x\n", linear);
}
static int _lm3533_als_get_zone(struct iio_dev *indio_dev, u8 *zone)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 val;
int ret;
ret = lm3533_read(als->lm3533, LM3533_REG_ALS_ZONE_INFO, &val);
if (ret) {
dev_err(&indio_dev->dev, "failed to read zone\n");
return ret;
}
val = (val & LM3533_ALS_ZONE_MASK) >> LM3533_ALS_ZONE_SHIFT;
*zone = min_t(u8, val, LM3533_ALS_ZONE_MAX);
return 0;
}
static int lm3533_als_get_threshold(struct iio_dev *indio_dev, unsigned nr,
bool raising, u8 *val)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 reg;
int ret;
if (nr > LM3533_ALS_THRESH_MAX)
return -EINVAL;
reg = lm3533_als_get_threshold_reg(nr, raising);
ret = lm3533_read(als->lm3533, reg, val);
if (ret)
dev_err(&indio_dev->dev, "failed to get threshold\n");
return ret;
}
static int lm3533_als_get_int_mode(struct iio_dev *indio_dev, int *enable)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 mask = LM3533_ALS_INT_ENABLE_MASK;
u8 val;
int ret;
ret = lm3533_read(als->lm3533, LM3533_REG_ALS_ZONE_INFO, &val);
if (ret) {
dev_err(&indio_dev->dev, "failed to get int mode\n");
return ret;
}
*enable = !!(val & mask);
return 0;
}
static ssize_t show_als_en(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm3533_bl *bl = dev_get_drvdata(dev);
int ctrlbank = lm3533_bl_get_ctrlbank_id(bl);
u8 val;
u8 mask;
bool enable;
int ret;
ret = lm3533_read(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, &val);
if (ret)
return ret;
mask = 1 << (2 * ctrlbank);
enable = val & mask;
return scnprintf(buf, PAGE_SIZE, "%d\n", enable);
}
static int lm3533_als_get_target(struct iio_dev *indio_dev, unsigned channel,
unsigned zone, u8 *val)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 reg;
int ret;
if (channel > LM3533_ALS_CHANNEL_CURRENT_MAX)
return -EINVAL;
if (zone > LM3533_ALS_ZONE_MAX)
return -EINVAL;
reg = lm3533_als_get_target_reg(channel, zone);
ret = lm3533_read(als->lm3533, reg, val);
if (ret)
dev_err(&indio_dev->dev, "failed to get target current\n");
return ret;
}
static int lm3533_als_set_threshold(struct iio_dev *indio_dev, unsigned nr,
bool raising, u8 val)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 val2;
u8 reg, reg2;
int ret;
if (nr > LM3533_ALS_THRESH_MAX)
return -EINVAL;
reg = lm3533_als_get_threshold_reg(nr, raising);
reg2 = lm3533_als_get_threshold_reg(nr, !raising);
mutex_lock(&als->thresh_mutex);
ret = lm3533_read(als->lm3533, reg2, &val2);
if (ret) {
dev_err(&indio_dev->dev, "failed to get threshold\n");
goto out;
}
/*
* This device does not allow negative hysteresis (in fact, it uses
* whichever value is smaller as the lower bound) so we need to make
* sure that thresh_falling <= thresh_raising.
*/
if ((raising && (val < val2)) || (!raising && (val > val2))) {
ret = -EINVAL;
goto out;
}
ret = lm3533_write(als->lm3533, reg, val);
if (ret) {
dev_err(&indio_dev->dev, "failed to set threshold\n");
goto out;
}
out:
mutex_unlock(&als->thresh_mutex);
return ret;
}
static ssize_t show_linear(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm3533_bl *bl = dev_get_drvdata(dev);
u8 val;
u8 mask;
int linear;
int ret;
ret = lm3533_read(bl->lm3533, LM3533_REG_CTRLBANK_AB_BCONF, &val);
if (ret)
return ret;
mask = 1 << (2 * lm3533_bl_get_ctrlbank_id(bl) + 1);
if (val & mask)
linear = 1;
else
linear = 0;
return scnprintf(buf, PAGE_SIZE, "%x\n", linear);
}
static int lm3533_als_get_adc(struct iio_dev *indio_dev, bool average,
int *adc)
{
struct lm3533_als *als = iio_priv(indio_dev);
u8 reg;
u8 val;
int ret;
if (average)
reg = LM3533_REG_ALS_READ_ADC_AVERAGE;
else
reg = LM3533_REG_ALS_READ_ADC_RAW;
ret = lm3533_read(als->lm3533, reg, &val);
if (ret) {
dev_err(&indio_dev->dev, "failed to read adc\n");
return ret;
}
*adc = val;
return 0;
}
