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staging:iio:addac:adt7316 replace abuse of buffer events. 

Currently squashed the fault condition from external
temperature sensor - lots of other issues to be fixed
with this driver which obeys almost no elements of the
abi.

V2: removed a couple of usused variables that sparse found.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron 2011-05-18 14:42:18 +01:00 committed by Greg Kroah-Hartman
parent d1ab8552cd
commit 383f650f6c
1 changed files with 52 additions and 30 deletions
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82
drivers/staging/iio/addac/adt7316.c
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@ -462,7 +462,7 @@ static ssize_t adt7316_show_all_ad_channels(struct device *dev,
if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
"2 - External Temperature or AIN2\n"
"2 - External Temperature or AIN1\n"
"3 - AIN2\n4 - AIN3\n5 - AIN4\n");
else
return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
@ -1762,49 +1762,71 @@ static const struct attribute_group adt7516_attribute_group = {
.attrs = adt7516_attributes,
};
/*
* temperature bound events
*/
#define IIO_EVENT_CODE_ADT7316_IN_TEMP_HIGH IIO_BUFFER_EVENT_CODE(0)
#define IIO_EVENT_CODE_ADT7316_IN_TEMP_LOW IIO_BUFFER_EVENT_CODE(1)
#define IIO_EVENT_CODE_ADT7316_EX_TEMP_HIGH IIO_BUFFER_EVENT_CODE(2)
#define IIO_EVENT_CODE_ADT7316_EX_TEMP_LOW IIO_BUFFER_EVENT_CODE(3)
#define IIO_EVENT_CODE_ADT7316_EX_TEMP_FAULT IIO_BUFFER_EVENT_CODE(4)
#define IIO_EVENT_CODE_ADT7516_AIN1 IIO_BUFFER_EVENT_CODE(5)
#define IIO_EVENT_CODE_ADT7516_AIN2 IIO_BUFFER_EVENT_CODE(6)
#define IIO_EVENT_CODE_ADT7516_AIN3 IIO_BUFFER_EVENT_CODE(7)
#define IIO_EVENT_CODE_ADT7516_AIN4 IIO_BUFFER_EVENT_CODE(8)
#define IIO_EVENT_CODE_ADT7316_VDD IIO_BUFFER_EVENT_CODE(9)
static irqreturn_t adt7316_event_handler(int irq, void *private)
{
struct iio_dev *indio_dev = private;
struct adt7316_chip_info *chip = iio_dev_get_devdata(indio_dev);
u8 stat1, stat2;
int i, ret, count;
int ret;
s64 time;
ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1);
if (!ret) {
if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
count = 8;
else
count = 5;
if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
stat1 &= 0x1F;
for (i = 0; i < count; i++) {
if (stat1 & (1 << i))
iio_push_event(chip->indio_dev, 0,
IIO_EVENT_CODE_ADT7316_IN_TEMP_HIGH + i,
iio_get_time_ns());
time = iio_get_time_ns();
if (stat1 & (1 << 0))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
time);
if (stat1 & (1 << 1))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
time);
if (stat1 & (1 << 2))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
time);
if (stat1 & (1 << 3))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
time);
if (stat1 & (1 << 5))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_IN, 1,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
time);
if (stat1 & (1 << 6))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_IN, 2,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
time);
if (stat1 & (1 << 7))
iio_push_event(chip->indio_dev, 0,
IIO_UNMOD_EVENT_CODE(IIO_IN, 3,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
time);
}
}
ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
if (!ret) {
if (stat2 & ADT7316_INT_MASK2_VDD)
iio_push_event(chip->indio_dev, 0,
IIO_EVENT_CODE_ADT7316_VDD,
IIO_UNMOD_EVENT_CODE(IIO_IN,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
iio_get_time_ns());
}