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staging:iio:ad7291 define alert register bits

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Define some names for alert register bits and apply them to
ad7291_event_handler().

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Hartmut Knaack 2014-08-07 12:06:00 +01:00 committed by Jonathan Cameron
parent 8a32f65f38
commit cfa71bf35c
1 changed files with 18 additions and 7 deletions
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25
drivers/staging/iio/adc/ad7291.c
View file

@ -68,6 +68,17 @@
*/
#define AD7291_VALUE_MASK GENMASK(11, 0)
/*
* AD7291 alert register bits
*/
#define AD7291_T_LOW BIT(0)
#define AD7291_T_HIGH BIT(1)
#define AD7291_T_AVG_LOW BIT(2)
#define AD7291_T_AVG_HIGH BIT(3)
#define AD7291_V_LOW(x) BIT((x) * 2)
#define AD7291_V_HIGH(x) BIT((x) * 2 + 1)
struct ad7291_chip_info {
struct i2c_client *client;
struct regulator *reg;
@ -122,14 +133,14 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
ad7291_i2c_write(chip, AD7291_COMMAND, command);
/* For now treat t_sense and t_sense_average the same */
if ((t_status & (1 << 0)) || (t_status & (1 << 2)))
if ((t_status & AD7291_T_LOW) || (t_status & AD7291_T_AVG_LOW))
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if ((t_status & (1 << 1)) || (t_status & (1 << 3)))
if ((t_status & AD7291_T_HIGH) || (t_status & AD7291_T_AVG_HIGH))
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
@ -137,18 +148,18 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
IIO_EV_DIR_RISING),
timestamp);
for (i = 0; i < AD7291_VOLTAGE_LIMIT_COUNT*2; i += 2) {
if (v_status & (1 << i))
for (i = 0; i < AD7291_VOLTAGE_LIMIT_COUNT; i++) {
if (v_status & AD7291_V_LOW(i))
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE,
i/2,
i,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
timestamp);
if (v_status & (1 << (i + 1)))
if (v_status & AD7291_V_HIGH(i))
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE,
i/2,
i,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
timestamp);