Description of the physical chip / device for device X.
Typically a part number.
+What: /sys/bus/iio/devices/iio:deviceX/timestamp_clock
+KernelVersion: 4.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ String identifying current posix clock used to timestamp
+ buffered samples and events for device X.
+
What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
What: /sys/bus/iio/devices/triggerX/sampling_frequency
irqreturn_t sensor_iio_pollfunc(int irq, void *p)
{
- pf->timestamp = iio_get_time_ns();
+ pf->timestamp = iio_get_time_ns((struct indio_dev *)p);
return IRQ_WAKE_THREAD;
}
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct bma180_data *data = iio_priv(indio_dev);
- int64_t time_ns = iio_get_time_ns();
+ s64 time_ns = iio_get_time_ns(indio_dev);
int bit, ret, i = 0;
mutex_lock(&data->mutex);
*/
if (!irq) {
data->old_timestamp = data->timestamp;
- data->timestamp = iio_get_time_ns();
+ data->timestamp = iio_get_time_ns(indio_dev);
}
/*
int i;
data->old_timestamp = data->timestamp;
- data->timestamp = iio_get_time_ns();
+ data->timestamp = iio_get_time_ns(indio_dev);
for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
if (data->triggers[i].enabled) {
struct iio_dev *indio_dev = private;
struct kxcjk1013_data *data = iio_priv(indio_dev);
- data->timestamp = iio_get_time_ns();
+ data->timestamp = iio_get_time_ns(indio_dev);
if (data->dready_trigger_on)
iio_trigger_poll(data->dready_trig);
if (ret)
goto done;
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
static void mma8452_transient_interrupt(struct iio_dev *indio_dev)
{
struct mma8452_data *data = iio_priv(indio_dev);
- s64 ts = iio_get_time_ns();
+ s64 ts = iio_get_time_ns(indio_dev);
int src;
src = i2c_smbus_read_byte_data(data->client, data->chip_info->ev_src);
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_INCLI, 0, (mma_axis + 1),
IIO_EV_TYPE_ROC, IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
out:
mutex_unlock(&data->mutex);
struct iio_dev *indio_dev = private;
struct mma9553_data *data = iio_priv(indio_dev);
- data->timestamp = iio_get_time_ns();
+ data->timestamp = iio_get_time_ns(indio_dev);
/*
* Since we only configure the interrupt pin when an
* event is enabled, we are sure we have at least
u16 t_status, v_status;
u16 command;
int i;
- s64 timestamp = iio_get_time_ns();
+ s64 timestamp = iio_get_time_ns(indio_dev);
if (ad7291_i2c_read(chip, AD7291_T_ALERT_STATUS, &t_status))
return IRQ_HANDLED;
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, st->data,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, st->data,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
goto out;
iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
out:
iio_trigger_notify_done(indio_dev->trig);
(i >> 1),
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
done:
if (!sample_invalid)
iio_push_to_buffers_with_timestamp(indio_dev, data,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
iio_push_event(idev,
IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, i,
IIO_EV_TYPE_THRESH, dir),
- iio_get_time_ns());
+ iio_get_time_ns(idev));
}
}
s64 time_a, time_b;
unsigned int alert;
- time_a = iio_get_time_ns();
+ time_a = iio_get_time_ns(indio_dev);
/*
* Because the timer thread and the chip conversion clock
data[i++] = val;
}
- time_b = iio_get_time_ns();
+ time_b = iio_get_time_ns(indio_dev);
iio_push_to_buffers_with_timestamp(indio_dev,
(unsigned int *)data, time_a);
dev_dbg(&indio_dev->dev, "Async readout mode: %d\n",
chip->allow_async_readout);
- chip->prev_ns = iio_get_time_ns();
+ chip->prev_ns = iio_get_time_ns(indio_dev);
chip->task = kthread_run(ina2xx_capture_thread, (void *)indio_dev,
"%s:%d-%uus", indio_dev->name, indio_dev->id,
{
struct iio_dev *indio_dev = private;
struct max1363_state *st = iio_priv(indio_dev);
- s64 timestamp = iio_get_time_ns();
+ s64 timestamp = iio_get_time_ns(indio_dev);
unsigned long mask, loc;
u8 rx;
u8 tx[2] = { st->setupbyte,
if (b_sent < 0)
goto done_free;
- iio_push_to_buffers_with_timestamp(indio_dev, rxbuf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, rxbuf,
+ iio_get_time_ns(indio_dev));
done_free:
kfree(rxbuf);
if (ret < 0)
goto out;
buf[0] = ret;
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
out:
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
buf[0] = res;
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
err:
iio_trigger_notify_done(indio_dev->trig);
if (iio_buffer_enabled(indio_dev)) {
info->buffer[0] = info->value;
iio_push_to_buffers_with_timestamp(indio_dev,
- info->buffer, iio_get_time_ns());
+ info->buffer,
+ iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
} else
complete(&info->completion);
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(chan->type, chan->channel,
IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
} else {
/*
* For other channels we don't know whether it is a upper or
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(chan->type, chan->channel,
IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
}
if (!ret)
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
if (sdata->hw_irq_trigger)
timestamp = sdata->hw_timestamp;
else
- timestamp = iio_get_time_ns();
+ timestamp = iio_get_time_ns(indio_dev);
len = st_sensors_get_buffer_element(indio_dev, sdata->buffer_data);
if (len < 0)
struct st_sensor_data *sdata = iio_priv(indio_dev);
/* Get the time stamp as close in time as possible */
- sdata->hw_timestamp = iio_get_time_ns();
+ sdata->hw_timestamp = iio_get_time_ns(indio_dev);
return IRQ_WAKE_THREAD;
}
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
if (events & AD5421_FAULT_UNDER_CURRENT) {
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
if (events & AD5421_FAULT_TEMP_OVER_140) {
0,
IIO_EV_TYPE_MAG,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
old_fault = fault;
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns((struct iio_dev *)private));
return IRQ_HANDLED;
}
}
}
- iio_push_to_buffers_with_timestamp(indio_dev, data, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_get_time_ns(indio_dev));
kfree(data);
struct iio_dev *indio_dev = private;
struct iio_dummy_state *st = iio_priv(indio_dev);
- st->event_timestamp = iio_get_time_ns();
+ st->event_timestamp = iio_get_time_ns(indio_dev);
return IRQ_WAKE_THREAD;
}
if (val & BMG160_ANY_MOTION_BIT_X)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
- 0,
- IIO_MOD_X,
- IIO_EV_TYPE_ROC,
- dir),
- iio_get_time_ns());
+ 0,
+ IIO_MOD_X,
+ IIO_EV_TYPE_ROC,
+ dir),
+ iio_get_time_ns(indio_dev));
if (val & BMG160_ANY_MOTION_BIT_Y)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
- 0,
- IIO_MOD_Y,
- IIO_EV_TYPE_ROC,
- dir),
- iio_get_time_ns());
+ 0,
+ IIO_MOD_Y,
+ IIO_EV_TYPE_ROC,
+ dir),
+ iio_get_time_ns(indio_dev));
if (val & BMG160_ANY_MOTION_BIT_Z)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
- 0,
- IIO_MOD_Z,
- IIO_EV_TYPE_ROC,
- dir),
- iio_get_time_ns());
+ 0,
+ IIO_MOD_Z,
+ IIO_EV_TYPE_ROC,
+ dir),
+ iio_get_time_ns(indio_dev));
ack_intr_status:
if (!data->dready_trigger_on) {
void iio_device_wakeup_eventset(struct iio_dev *indio_dev);
int iio_event_getfd(struct iio_dev *indio_dev);
+struct iio_event_interface;
+bool iio_event_enabled(const struct iio_event_interface *ev_int);
+
#endif
buf[j++] = sample;
}
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
struct inv_mpu6050_state *st = iio_priv(indio_dev);
s64 timestamp;
- timestamp = iio_get_time_ns();
+ timestamp = iio_get_time_ns(indio_dev);
kfifo_in_spinlocked(&st->timestamps, ×tamp, 1,
&st->time_stamp_lock);
}
EXPORT_SYMBOL(iio_read_const_attr);
+static int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id)
+{
+ int ret;
+ const struct iio_event_interface *ev_int = indio_dev->event_interface;
+
+ ret = mutex_lock_interruptible(&indio_dev->mlock);
+ if (ret)
+ return ret;
+ if ((ev_int && iio_event_enabled(ev_int)) ||
+ iio_buffer_enabled(indio_dev)) {
+ mutex_unlock(&indio_dev->mlock);
+ return -EBUSY;
+ }
+ indio_dev->clock_id = clock_id;
+ mutex_unlock(&indio_dev->mlock);
+
+ return 0;
+}
+
+/**
+ * iio_get_time_ns() - utility function to get a time stamp for events etc
+ * @indio_dev: device
+ */
+s64 iio_get_time_ns(const struct iio_dev *indio_dev)
+{
+ struct timespec tp;
+
+ switch (iio_device_get_clock(indio_dev)) {
+ case CLOCK_REALTIME:
+ ktime_get_real_ts(&tp);
+ break;
+ case CLOCK_MONOTONIC:
+ ktime_get_ts(&tp);
+ break;
+ case CLOCK_MONOTONIC_RAW:
+ getrawmonotonic(&tp);
+ break;
+ case CLOCK_REALTIME_COARSE:
+ tp = current_kernel_time();
+ break;
+ case CLOCK_MONOTONIC_COARSE:
+ tp = get_monotonic_coarse();
+ break;
+ case CLOCK_BOOTTIME:
+ get_monotonic_boottime(&tp);
+ break;
+ case CLOCK_TAI:
+ timekeeping_clocktai(&tp);
+ break;
+ default:
+ BUG();
+ }
+
+ return timespec_to_ns(&tp);
+}
+EXPORT_SYMBOL(iio_get_time_ns);
+
+/**
+ * iio_get_time_res() - utility function to get time stamp clock resolution in
+ * nano seconds.
+ * @indio_dev: device
+ */
+unsigned int iio_get_time_res(const struct iio_dev *indio_dev)
+{
+ switch (iio_device_get_clock(indio_dev)) {
+ case CLOCK_REALTIME:
+ case CLOCK_MONOTONIC:
+ case CLOCK_MONOTONIC_RAW:
+ case CLOCK_BOOTTIME:
+ case CLOCK_TAI:
+ return hrtimer_resolution;
+ case CLOCK_REALTIME_COARSE:
+ case CLOCK_MONOTONIC_COARSE:
+ return LOW_RES_NSEC;
+ default:
+ BUG();
+ }
+}
+EXPORT_SYMBOL(iio_get_time_res);
+
static int __init iio_init(void)
{
int ret;
static DEVICE_ATTR(name, S_IRUGO, iio_show_dev_name, NULL);
+static ssize_t iio_show_timestamp_clock(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ const struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ const clockid_t clk = iio_device_get_clock(indio_dev);
+ const char *name;
+ ssize_t sz;
+
+ switch (clk) {
+ case CLOCK_REALTIME:
+ name = "realtime\n";
+ sz = sizeof("realtime\n");
+ break;
+ case CLOCK_MONOTONIC:
+ name = "monotonic\n";
+ sz = sizeof("monotonic\n");
+ break;
+ case CLOCK_MONOTONIC_RAW:
+ name = "monotonic_raw\n";
+ sz = sizeof("monotonic_raw\n");
+ break;
+ case CLOCK_REALTIME_COARSE:
+ name = "realtime_coarse\n";
+ sz = sizeof("realtime_coarse\n");
+ break;
+ case CLOCK_MONOTONIC_COARSE:
+ name = "monotonic_coarse\n";
+ sz = sizeof("monotonic_coarse\n");
+ break;
+ case CLOCK_BOOTTIME:
+ name = "boottime\n";
+ sz = sizeof("boottime\n");
+ break;
+ case CLOCK_TAI:
+ name = "tai\n";
+ sz = sizeof("tai\n");
+ break;
+ default:
+ BUG();
+ }
+
+ memcpy(buf, name, sz);
+ return sz;
+}
+
+static ssize_t iio_store_timestamp_clock(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ clockid_t clk;
+ int ret;
+
+ if (sysfs_streq(buf, "realtime"))
+ clk = CLOCK_REALTIME;
+ else if (sysfs_streq(buf, "monotonic"))
+ clk = CLOCK_MONOTONIC;
+ else if (sysfs_streq(buf, "monotonic_raw"))
+ clk = CLOCK_MONOTONIC_RAW;
+ else if (sysfs_streq(buf, "realtime_coarse"))
+ clk = CLOCK_REALTIME_COARSE;
+ else if (sysfs_streq(buf, "monotonic_coarse"))
+ clk = CLOCK_MONOTONIC_COARSE;
+ else if (sysfs_streq(buf, "boottime"))
+ clk = CLOCK_BOOTTIME;
+ else if (sysfs_streq(buf, "tai"))
+ clk = CLOCK_TAI;
+ else
+ return -EINVAL;
+
+ ret = iio_device_set_clock(dev_to_iio_dev(dev), clk);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static DEVICE_ATTR(current_timestamp_clock, S_IRUGO | S_IWUSR,
+ iio_show_timestamp_clock, iio_store_timestamp_clock);
+
static int iio_device_register_sysfs(struct iio_dev *indio_dev)
{
int i, ret = 0, attrcount, attrn, attrcount_orig = 0;
struct iio_dev_attr *p;
- struct attribute **attr;
+ struct attribute **attr, *clk = NULL;
/* First count elements in any existing group */
if (indio_dev->info->attrs) {
*/
if (indio_dev->channels)
for (i = 0; i < indio_dev->num_channels; i++) {
- ret = iio_device_add_channel_sysfs(indio_dev,
- &indio_dev
- ->channels[i]);
+ const struct iio_chan_spec *chan =
+ &indio_dev->channels[i];
+
+ if (chan->type == IIO_TIMESTAMP)
+ clk = &dev_attr_current_timestamp_clock.attr;
+
+ ret = iio_device_add_channel_sysfs(indio_dev, chan);
if (ret < 0)
goto error_clear_attrs;
attrcount += ret;
}
+ if (indio_dev->event_interface)
+ clk = &dev_attr_current_timestamp_clock.attr;
+
if (indio_dev->name)
attrcount++;
+ if (clk)
+ attrcount++;
indio_dev->chan_attr_group.attrs = kcalloc(attrcount + 1,
sizeof(indio_dev->chan_attr_group.attrs[0]),
indio_dev->chan_attr_group.attrs[attrn++] = &p->dev_attr.attr;
if (indio_dev->name)
indio_dev->chan_attr_group.attrs[attrn++] = &dev_attr_name.attr;
+ if (clk)
+ indio_dev->chan_attr_group.attrs[attrn++] = clk;
indio_dev->groups[indio_dev->groupcounter++] =
&indio_dev->chan_attr_group;
struct mutex read_lock;
};
+bool iio_event_enabled(const struct iio_event_interface *ev_int)
+{
+ return !!test_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
+}
+
/**
* iio_push_event() - try to add event to the list for userspace reading
* @indio_dev: IIO device structure
int copied;
/* Does anyone care? */
- if (test_bit(IIO_BUSY_BIT_POS, &ev_int->flags)) {
+ if (iio_event_enabled(ev_int)) {
ev.id = ev_code;
ev.timestamp = timestamp;
if (ev_int == NULL)
return -ENODEV;
- if (test_and_set_bit(IIO_BUSY_BIT_POS, &ev_int->flags))
- return -EBUSY;
+ fd = mutex_lock_interruptible(&indio_dev->mlock);
+ if (fd)
+ return fd;
+
+ if (test_and_set_bit(IIO_BUSY_BIT_POS, &ev_int->flags)) {
+ fd = -EBUSY;
+ goto unlock;
+ }
iio_device_get(indio_dev);
kfifo_reset_out(&ev_int->det_events);
}
+unlock:
+ mutex_unlock(&indio_dev->mlock);
return fd;
}
irqreturn_t iio_pollfunc_store_time(int irq, void *p)
{
struct iio_poll_func *pf = p;
- pf->timestamp = iio_get_time_ns();
+ pf->timestamp = iio_get_time_ns(pf->indio_dev);
return IRQ_WAKE_THREAD;
}
EXPORT_SYMBOL(iio_pollfunc_store_time);
struct iio_dev *indio_dev = acpi_driver_data(device);
struct acpi_als *als = iio_priv(indio_dev);
s32 *buffer = als->evt_buffer;
- s64 time_ns = iio_get_time_ns();
+ s64 time_ns = iio_get_time_ns(indio_dev);
s32 val;
int ret;
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adjd_s311_data *data = iio_priv(indio_dev);
- s64 time_ns = iio_get_time_ns();
+ s64 time_ns = iio_get_time_ns(indio_dev);
int i, j = 0;
int ret = adjd_s311_req_data(indio_dev);
IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(dev_info));
apds9300_clear_intr(data);
IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
regmap_write(data->regmap, APDS9960_REG_CICLEAR, 1);
}
IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
regmap_write(data->regmap, APDS9960_REG_PICLEAR, 1);
}
CM36651_CMD_READ_RAW_PROXIMITY,
IIO_EV_TYPE_THRESH, ev_dir);
- iio_push_event(indio_dev, ev_code, iio_get_time_ns());
+ iio_push_event(indio_dev, ev_code, iio_get_time_ns(indio_dev));
return IRQ_HANDLED;
}
GP2AP020A00F_SCAN_MODE_PROXIMITY,
IIO_EV_TYPE_ROC,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
} else {
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(
GP2AP020A00F_SCAN_MODE_PROXIMITY,
IIO_EV_TYPE_ROC,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
}
IIO_MOD_LIGHT_CLEAR,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &priv->flags)) {
IIO_MOD_LIGHT_CLEAR,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
}
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
out:
return IRQ_HANDLED;
}
buf[j++] = psdata & LTR501_PS_DATA_MASK;
}
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
if (status & LTR501_STATUS_PS_INTR)
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
return IRQ_HANDLED;
}
}
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(iio));
if (ret & OPT3001_CONFIGURATION_FL)
iio_push_event(iio,
IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(iio));
} else if (ret & OPT3001_CONFIGURATION_CRF) {
ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_RESULT);
if (ret < 0) {
struct iio_dev *indio_dev = private;
struct stk3310_data *data = iio_priv(indio_dev);
- data->timestamp = iio_get_time_ns();
+ data->timestamp = iio_get_time_ns(indio_dev);
return IRQ_WAKE_THREAD;
}
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_EITHER),
- iio_get_time_ns());
+ iio_get_time_ns(dev_info));
/* clear the interrupt and push the event */
i2c_smbus_write_byte(chip->client, TSL2563_CMD | TSL2563_CLEARINT);
dir = ret & US5182D_CFG0_PROX ? IIO_EV_DIR_RISING : IIO_EV_DIR_FALLING;
ev = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, IIO_EV_TYPE_THRESH, dir);
- iio_push_event(indio_dev, ev, iio_get_time_ns());
+ iio_push_event(indio_dev, ev, iio_get_time_ns(indio_dev));
ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG0,
ret & ~US5182D_CFG0_PX_IRQ);
buff[1] = clamp_t(s16, le16_to_cpu(buff[1]), -def->range, def->range);
buff[2] = clamp_t(s16, le16_to_cpu(buff[2]), -def->range, def->range);
- iio_push_to_buffers_with_timestamp(indio_dev, buff, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buff,
+ iio_get_time_ns(indio_dev));
return;
unlock:
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
}
iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
mutex_unlock(&data->lock);
iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
done:
iio_trigger_notify_done(indio_dev->trig);
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
err:
iio_trigger_notify_done(indio_dev->trig);
ret = lidar_get_measurement(data, data->buffer);
if (!ret) {
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
} else if (ret != -EINVAL) {
dev_err(&data->client->dev, "cannot read LIDAR measurement");
}
dir = new_prox ? IIO_EV_DIR_FALLING : IIO_EV_DIR_RISING;
ev = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, chan,
IIO_EV_TYPE_THRESH, dir);
- iio_push_event(indio_dev, ev, iio_get_time_ns());
+ iio_push_event(indio_dev, ev, iio_get_time_ns(indio_dev));
data->prox_stat[chan] = new_prox;
}
}
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
out:
mutex_unlock(&data->mutex);
struct iio_dev *indio_dev = private;
u8 t;
- s64 timestamp = iio_get_time_ns();
+ s64 timestamp = iio_get_time_ns(indio_dev);
lis3l02dq_spi_read_reg_8(indio_dev,
LIS3L02DQ_REG_WAKE_UP_SRC_ADDR,
struct iio_dev *indio_dev = private;
struct sca3000_state *st = iio_priv(indio_dev);
int ret, val;
- s64 last_timestamp = iio_get_time_ns();
+ s64 last_timestamp = iio_get_time_ns(indio_dev);
/*
* Could lead if badly timed to an extra read of status reg,
IIO_EV_DIR_RISING,
IIO_EV_TYPE_THRESH,
0, 0, 0),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
else if (((channels[i] >> 11) & 0xFFF) <=
st->cell_threshlow)
iio_push_event(indio_dev,
IIO_EV_DIR_FALLING,
IIO_EV_TYPE_THRESH,
0, 0, 0),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
} else {
if (((channels[i] >> 11) & 0xFFF) >= st->aux_threshhigh)
iio_push_event(indio_dev,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
else if (((channels[i] >> 11) & 0xFFF) <=
st->aux_threshlow)
iio_push_event(indio_dev,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
}
goto done;
}
- iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+ iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_get_time_ns(indio_dev));
done:
gpio_set_value(st->pdata->gpio_convst, 0);
iio_trigger_notify_done(indio_dev->trig);
static irqreturn_t ad7816_event_handler(int irq, void *private)
{
- iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI, iio_get_time_ns());
+ iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI,
+ iio_get_time_ns((struct iio_dev *)private));
return IRQ_HANDLED;
}
if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
stat1 &= 0x1F;
- time = iio_get_time_ns();
+ time = iio_get_time_ns(indio_dev);
if (stat1 & BIT(0))
iio_push_event(indio_dev,
IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
- iio_get_time_ns());
+ iio_get_time_ns(indio_dev));
}
return IRQ_HANDLED;
struct iio_dev *indio_dev = private;
struct ad7150_chip_info *chip = iio_priv(indio_dev);
u8 int_status;
- s64 timestamp = iio_get_time_ns();
+ s64 timestamp = iio_get_time_ns(indio_dev);
int ret;
ret = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS);
{
struct iio_dev *indio_dev = private;
struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- s64 timestamp = iio_get_time_ns();
+ s64 timestamp = iio_get_time_ns(indio_dev);
int ret;
u8 value;
}, \
}
-/**
- * iio_get_time_ns() - utility function to get a time stamp for events etc
- **/
-static inline s64 iio_get_time_ns(void)
-{
- return ktime_get_real_ns();
-}
+s64 iio_get_time_ns(const struct iio_dev *indio_dev);
+unsigned int iio_get_time_res(const struct iio_dev *indio_dev);
/* Device operating modes */
#define INDIO_DIRECT_MODE 0x01
* @chan_attr_group: [INTERN] group for all attrs in base directory
* @name: [DRIVER] name of the device.
* @info: [DRIVER] callbacks and constant info from driver
+ * @clock_id: [INTERN] timestamping clock posix identifier
* @info_exist_lock: [INTERN] lock to prevent use during removal
* @setup_ops: [DRIVER] callbacks to call before and after buffer
* enable/disable
struct attribute_group chan_attr_group;
const char *name;
const struct iio_info *info;
+ clockid_t clock_id;
struct mutex info_exist_lock;
const struct iio_buffer_setup_ops *setup_ops;
struct cdev chrdev;
/**
* iio_device_put() - reference counted deallocation of struct device
- * @indio_dev: IIO device structure containing the device
+ * @indio_dev: IIO device structure containing the device
**/
static inline void iio_device_put(struct iio_dev *indio_dev)
{
put_device(&indio_dev->dev);
}
+/**
+ * iio_device_get_clock() - Retrieve current timestamping clock for the device
+ * @indio_dev: IIO device structure containing the device
+ */
+static inline clockid_t iio_device_get_clock(const struct iio_dev *indio_dev)
+{
+ return indio_dev->clock_id;
+}
+
/**
* dev_to_iio_dev() - Get IIO device struct from a device struct
* @dev: The device embedded in the IIO device
projects / cascardo / linux.git / commitdiff