#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
#include "ad7606.h"
-int ad7606_reset(struct ad7606_state *st)
+static int ad7606_reset(struct ad7606_state *st)
{
if (st->gpio_reset) {
gpiod_set_value(st->gpio_reset, 1);
return -ENODEV;
}
-int ad7606_read_samples(struct ad7606_state *st)
+static int ad7606_read_samples(struct ad7606_state *st)
{
unsigned int num = st->chip_info->num_channels;
u16 *data = st->data;
return st->bops->read_block(st->dev, num, data);
}
+static irqreturn_t ad7606_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct ad7606_state *st = iio_priv(pf->indio_dev);
+
+ gpiod_set_value(st->gpio_convst, 1);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * ad7606_poll_bh_to_ring() bh of trigger launched polling to ring buffer
+ * @work_s: the work struct through which this was scheduled
+ *
+ * Currently there is no option in this driver to disable the saving of
+ * timestamps within the ring.
+ * I think the one copy of this at a time was to avoid problems if the
+ * trigger was set far too high and the reads then locked up the computer.
+ **/
+static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
+{
+ struct ad7606_state *st = container_of(work_s, struct ad7606_state,
+ poll_work);
+ struct iio_dev *indio_dev = iio_priv_to_dev(st);
+ int ret;
+
+ ret = ad7606_read_samples(st);
+ if (ret == 0)
+ iio_push_to_buffers_with_timestamp(indio_dev, st->data,
+ iio_get_time_ns(indio_dev));
+
+ gpiod_set_value(st->gpio_convst, 0);
+ iio_trigger_notify_done(indio_dev->trig);
+}
+
static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
st->base_address = base_address;
st->range = 5000;
st->oversampling = 1;
+ INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring);
st->reg = devm_regulator_get(dev, "vcc");
if (!IS_ERR(st->reg)) {
if (ret)
goto error_disable_reg;
- ret = ad7606_register_ring_funcs_and_init(indio_dev);
+ ret = iio_triggered_buffer_setup(indio_dev, &ad7606_trigger_handler,
+ NULL, NULL);
if (ret)
goto error_free_irq;
return 0;
error_unregister_ring:
- ad7606_ring_cleanup(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
error_free_irq:
free_irq(irq, indio_dev);
struct ad7606_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- ad7606_ring_cleanup(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
free_irq(irq, indio_dev);
if (!IS_ERR(st->reg))
const char *name, unsigned int id,
const struct ad7606_bus_ops *bops);
int ad7606_remove(struct device *dev, int irq);
-int ad7606_reset(struct ad7606_state *st);
-int ad7606_read_samples(struct ad7606_state *st);
enum ad7606_supported_device_ids {
ID_AD7606_8,
ID_AD7606_4
};
-int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev);
-void ad7606_ring_cleanup(struct iio_dev *indio_dev);
-
#ifdef CONFIG_PM_SLEEP
extern const struct dev_pm_ops ad7606_pm_ops;
#define AD7606_PM_OPS (&ad7606_pm_ops)
+++ /dev/null
-/*
- * Copyright 2011-2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- *
- */
-
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-
-#include "ad7606.h"
-
-static irqreturn_t ad7606_trigger_handler(int irq, void *p)
-{
- struct iio_poll_func *pf = p;
- struct ad7606_state *st = iio_priv(pf->indio_dev);
-
- gpiod_set_value(st->gpio_convst, 1);
-
- return IRQ_HANDLED;
-}
-
-/**
- * ad7606_poll_bh_to_ring() bh of trigger launched polling to ring buffer
- * @work_s: the work struct through which this was scheduled
- *
- * Currently there is no option in this driver to disable the saving of
- * timestamps within the ring.
- * I think the one copy of this at a time was to avoid problems if the
- * trigger was set far too high and the reads then locked up the computer.
- **/
-static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
-{
- struct ad7606_state *st = container_of(work_s, struct ad7606_state,
- poll_work);
- struct iio_dev *indio_dev = iio_priv_to_dev(st);
- int ret;
-
- ret = ad7606_read_samples(st);
- if (ret == 0)
- iio_push_to_buffers_with_timestamp(indio_dev, st->data,
- iio_get_time_ns(indio_dev));
-
- gpiod_set_value(st->gpio_convst, 0);
- iio_trigger_notify_done(indio_dev->trig);
-}
-
-int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
- struct ad7606_state *st = iio_priv(indio_dev);
-
- INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring);
-
- return iio_triggered_buffer_setup(indio_dev, &ad7606_trigger_handler,
- NULL, NULL);
-}
-
-void ad7606_ring_cleanup(struct iio_dev *indio_dev)
-{
- iio_triggered_buffer_cleanup(indio_dev);
-}