#define AD7280A_ALL_CELLS (0xAD << 16)
-#define AD7280A_MAX_SPI_CLK_Hz 700000 /* < 1MHz */
+#define AD7280A_MAX_SPI_CLK_HZ 700000 /* < 1MHz */
#define AD7280A_MAX_CHAIN 8
#define AD7280A_CELLS_PER_DEV 6
#define AD7280A_BITS 12
}
static int ad7280_read(struct ad7280_state *st, unsigned devaddr,
- unsigned addr)
+ unsigned addr)
{
int ret;
unsigned tmp;
/* turns off the read operation on all parts */
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
- AD7280A_CTRL_HB_CONV_INPUT_ALL |
- AD7280A_CTRL_HB_CONV_RES_READ_NO |
- st->ctrl_hb);
+ AD7280A_CTRL_HB_CONV_INPUT_ALL |
+ AD7280A_CTRL_HB_CONV_RES_READ_NO |
+ st->ctrl_hb);
if (ret)
return ret;
/* turns on the read operation on the addressed part */
ret = ad7280_write(st, devaddr, AD7280A_CONTROL_HB, 0,
- AD7280A_CTRL_HB_CONV_INPUT_ALL |
- AD7280A_CTRL_HB_CONV_RES_READ_ALL |
- st->ctrl_hb);
+ AD7280A_CTRL_HB_CONV_INPUT_ALL |
+ AD7280A_CTRL_HB_CONV_RES_READ_ALL |
+ st->ctrl_hb);
if (ret)
return ret;
return ret;
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
- AD7280A_CTRL_HB_CONV_INPUT_ALL |
- AD7280A_CTRL_HB_CONV_RES_READ_NO |
- st->ctrl_hb);
+ AD7280A_CTRL_HB_CONV_INPUT_ALL |
+ AD7280A_CTRL_HB_CONV_RES_READ_NO |
+ st->ctrl_hb);
if (ret)
return ret;
ret = ad7280_write(st, devaddr, AD7280A_CONTROL_HB, 0,
- AD7280A_CTRL_HB_CONV_INPUT_ALL |
- AD7280A_CTRL_HB_CONV_RES_READ_ALL |
- AD7280A_CTRL_HB_CONV_START_CS |
- st->ctrl_hb);
+ AD7280A_CTRL_HB_CONV_INPUT_ALL |
+ AD7280A_CTRL_HB_CONV_RES_READ_ALL |
+ AD7280A_CTRL_HB_CONV_START_CS |
+ st->ctrl_hb);
if (ret)
return ret;
}
static int ad7280_read_all_channels(struct ad7280_state *st, unsigned cnt,
- unsigned *array)
+ unsigned *array)
{
int i, ret;
unsigned tmp, sum = 0;
return ret;
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
- AD7280A_CTRL_HB_CONV_INPUT_ALL |
- AD7280A_CTRL_HB_CONV_RES_READ_ALL |
- AD7280A_CTRL_HB_CONV_START_CS |
- st->ctrl_hb);
+ AD7280A_CTRL_HB_CONV_INPUT_ALL |
+ AD7280A_CTRL_HB_CONV_RES_READ_ALL |
+ AD7280A_CTRL_HB_CONV_START_CS |
+ st->ctrl_hb);
if (ret)
return ret;
int ret;
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_LB, 1,
- AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
- AD7280A_CTRL_LB_LOCK_DEV_ADDR |
- AD7280A_CTRL_LB_MUST_SET |
- AD7280A_CTRL_LB_SWRST |
- st->ctrl_lb);
+ AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
+ AD7280A_CTRL_LB_LOCK_DEV_ADDR |
+ AD7280A_CTRL_LB_MUST_SET |
+ AD7280A_CTRL_LB_SWRST |
+ st->ctrl_lb);
if (ret)
return ret;
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_LB, 1,
- AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
- AD7280A_CTRL_LB_LOCK_DEV_ADDR |
- AD7280A_CTRL_LB_MUST_SET |
- st->ctrl_lb);
+ AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
+ AD7280A_CTRL_LB_LOCK_DEV_ADDR |
+ AD7280A_CTRL_LB_MUST_SET |
+ st->ctrl_lb);
if (ret)
return ret;
ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_READ, 1,
- AD7280A_CONTROL_LB << 2);
+ AD7280A_CONTROL_LB << 2);
if (ret)
return ret;
}
static ssize_t ad7280_show_balance_sw(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
}
static ssize_t ad7280_store_balance_sw(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
}
static ssize_t ad7280_show_balance_timer(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
mutex_lock(&indio_dev->mlock);
ret = ad7280_read(st, this_attr->address >> 8,
- this_attr->address & 0xFF);
+ this_attr->address & 0xFF);
mutex_unlock(&indio_dev->mlock);
if (ret < 0)
}
static ssize_t ad7280_store_balance_timer(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
st->channels = kcalloc((st->slave_num + 1) * 12 + 2,
sizeof(*st->channels), GFP_KERNEL);
- if (st->channels == NULL)
+ if (!st->channels)
return -ENOMEM;
for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
- for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_AUX_ADC_6; ch++,
- cnt++) {
+ for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_AUX_ADC_6;
+ ch++, cnt++) {
if (ch < AD7280A_AUX_ADC_1) {
st->channels[cnt].type = IIO_VOLTAGE;
st->channels[cnt].differential = 1;
st->iio_attr = kcalloc(2, sizeof(*st->iio_attr) *
(st->slave_num + 1) * AD7280A_CELLS_PER_DEV,
GFP_KERNEL);
- if (st->iio_attr == NULL)
+ if (!st->iio_attr)
return -ENOMEM;
for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
ad7280_store_balance_sw;
st->iio_attr[cnt].dev_attr.attr.name =
kasprintf(GFP_KERNEL,
- "in%d-in%d_balance_switch_en",
- (dev * AD7280A_CELLS_PER_DEV) + ch,
- (dev * AD7280A_CELLS_PER_DEV) + ch + 1);
+ "in%d-in%d_balance_switch_en",
+ dev * AD7280A_CELLS_PER_DEV + ch,
+ dev * AD7280A_CELLS_PER_DEV + ch + 1);
ad7280_attributes[cnt] =
&st->iio_attr[cnt].dev_attr.attr;
cnt++;
st->iio_attr[cnt].dev_attr.store =
ad7280_store_balance_timer;
st->iio_attr[cnt].dev_attr.attr.name =
- kasprintf(GFP_KERNEL, "in%d-in%d_balance_timer",
- (dev * AD7280A_CELLS_PER_DEV) + ch,
- (dev * AD7280A_CELLS_PER_DEV) + ch + 1);
+ kasprintf(GFP_KERNEL,
+ "in%d-in%d_balance_timer",
+ dev * AD7280A_CELLS_PER_DEV + ch,
+ dev * AD7280A_CELLS_PER_DEV + ch + 1);
ad7280_attributes[cnt] =
&st->iio_attr[cnt].dev_attr.attr;
}
}
static ssize_t ad7280_read_channel_config(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
unsigned val;
- switch ((u32) this_attr->address) {
+ switch ((u32)this_attr->address) {
case AD7280A_CELL_OVERVOLTAGE:
val = 1000 + (st->cell_threshhigh * 1568) / 100;
break;
}
static ssize_t ad7280_write_channel_config(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7280_state *st = iio_priv(indio_dev);
if (ret)
return ret;
- switch ((u32) this_attr->address) {
+ switch ((u32)this_attr->address) {
case AD7280A_CELL_OVERVOLTAGE:
case AD7280A_CELL_UNDERVOLTAGE:
val = ((val - 1000) * 100) / 1568; /* LSB 15.68mV */
val = clamp(val, 0L, 0xFFL);
mutex_lock(&indio_dev->mlock);
- switch ((u32) this_attr->address) {
+ switch ((u32)this_attr->address) {
case AD7280A_CELL_OVERVOLTAGE:
st->cell_threshhigh = val;
break;
int i, ret;
channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
- if (channels == NULL)
+ if (!channels)
return IRQ_HANDLED;
ret = ad7280_read_all_channels(st, st->scan_cnt, channels);
if (((channels[i] >> 11) & 0xFFF) >=
st->cell_threshhigh)
iio_push_event(indio_dev,
- IIO_EVENT_CODE(IIO_VOLTAGE,
- 1,
- 0,
- IIO_EV_DIR_RISING,
- IIO_EV_TYPE_THRESH,
- 0, 0, 0),
- iio_get_time_ns());
+ IIO_EVENT_CODE(IIO_VOLTAGE,
+ 1,
+ 0,
+ IIO_EV_DIR_RISING,
+ IIO_EV_TYPE_THRESH,
+ 0, 0, 0),
+ iio_get_time_ns());
else if (((channels[i] >> 11) & 0xFFF) <=
st->cell_threshlow)
iio_push_event(indio_dev,
- IIO_EVENT_CODE(IIO_VOLTAGE,
- 1,
- 0,
- IIO_EV_DIR_FALLING,
- IIO_EV_TYPE_THRESH,
- 0, 0, 0),
- iio_get_time_ns());
+ IIO_EVENT_CODE(IIO_VOLTAGE,
+ 1,
+ 0,
+ IIO_EV_DIR_FALLING,
+ IIO_EV_TYPE_THRESH,
+ 0, 0, 0),
+ iio_get_time_ns());
} else {
if (((channels[i] >> 11) & 0xFFF) >= st->aux_threshhigh)
iio_push_event(indio_dev,
- IIO_UNMOD_EVENT_CODE(IIO_TEMP,
- 0,
- IIO_EV_TYPE_THRESH,
- IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ IIO_UNMOD_EVENT_CODE(
+ IIO_TEMP,
+ 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_RISING),
+ iio_get_time_ns());
else if (((channels[i] >> 11) & 0xFFF) <=
st->aux_threshlow)
iio_push_event(indio_dev,
- IIO_UNMOD_EVENT_CODE(IIO_TEMP,
- 0,
- IIO_EV_TYPE_THRESH,
- IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ IIO_UNMOD_EVENT_CODE(
+ IIO_TEMP,
+ 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_FALLING),
+ iio_get_time_ns());
}
}
ad7280_write_channel_config,
AD7280A_AUX_ADC_OVERVOLTAGE);
-
static struct attribute *ad7280_event_attributes[] = {
&iio_dev_attr_in_thresh_low_value.dev_attr.attr,
&iio_dev_attr_in_thresh_high_value.dev_attr.attr,
}
static const struct iio_info ad7280_info = {
- .read_raw = &ad7280_read_raw,
+ .read_raw = ad7280_read_raw,
.event_attrs = &ad7280_event_attrs_group,
.attrs = &ad7280_attrs_group,
.driver_module = THIS_MODULE,
struct iio_dev *indio_dev;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
- if (indio_dev == NULL)
+ if (!indio_dev)
return -ENOMEM;
st = iio_priv(indio_dev);
ad7280_crc8_build_table(st->crc_tab);
- st->spi->max_speed_hz = AD7280A_MAX_SPI_CLK_Hz;
+ st->spi->max_speed_hz = AD7280A_MAX_SPI_CLK_HZ;
st->spi->mode = SPI_MODE_1;
spi_setup(st->spi);
iio_device_unregister(indio_dev);
ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
- AD7280A_CTRL_HB_PWRDN_SW | st->ctrl_hb);
+ AD7280A_CTRL_HB_PWRDN_SW | st->ctrl_hb);
kfree(st->channels);
kfree(st->iio_attr);
projects / karo-tx-linux.git / blobdiff