Merge branch 'lineage-16.0' of https://github.com/me176c-dev/android_hardware_iio...

[android-x86/hardware-intel-libsensors.git] / entry.c

diff --git a/entry.c b/entry.c
index 5868c4c..a914f44 100644 (file)
--- a/entry.c
+++ b/entry.c
@@ -1,22 +1,44 @@
 /*
- * Copyright (C) 2014 Intel Corporation.
- */
+// Copyright (c) 2015 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
 
 #include <hardware/sensors.h>
 #include <utils/Log.h>
 #include "enumeration.h"
 #include "control.h"
 #include "description.h"
+#include "utils.h"
+
+#include <errno.h>
 
 /* This is the IIO Sensors HAL module entry points file */
 
 static int init_count;
 
-static int activate(struct sensors_poll_device_t* dev, int handle, int enabled)
+static int activate (__attribute__((unused)) struct sensors_poll_device_t* dev,
+                    int handle, int enabled)
 {
+       int64_t entry_ts;
+       int ret;
+       int elapsed_ms;
+
        if (init_count == 0 || handle < 0 || handle >= sensor_count)
                return -EINVAL;
 
+       entry_ts = get_timestamp_thread();
+
        /*
         * The Intel sensor hub seems to have trouble enabling sensors before
         * a sampling rate has been configured, and setting the sampling rate
@@ -26,31 +48,54 @@ static int activate(struct sensors_poll_device_t* dev, int handle, int enabled)
         * a workaround for this behavior. We set the initial sampling rate to
         * 10 events per second when the sensor is enabled for the first time.
         */
+
        if (enabled && sensor_get_quirks(handle) & QUIRK_INITIAL_RATE) {
                ALOGI("Forcing initial sampling rate\n");
-               sensor_activate(handle, 1);
-               sensor_set_delay(handle, 100000000L);   /* Start with 100 ms */
-               sensor_activate(handle, 0);
+               sensor_activate(handle, 1, 0);
+               sensor_set_delay(handle, 100000000);    /* Start with 100 ms */
+               sensor_activate(handle, 0, 0);
 
                /* Clear flag for this sensor as do this only once */
-               sensor_info[handle].quirks ^= QUIRK_INITIAL_RATE;
+               sensor[handle].quirks ^= QUIRK_INITIAL_RATE;
+       }
+
+       ret = sensor_activate(handle, enabled, 0);
+
+       elapsed_ms = (int) ((get_timestamp_thread() - entry_ts) / 1000000);
+
+       if (elapsed_ms) {
+               if (enabled)
+                       ALOGI("Activation of sensor %s took %d ms\n", sensor[handle].friendly_name, elapsed_ms);
+               else
+                       ALOGI("Deactivation of sensor %s took %d ms\n", sensor[handle].friendly_name, elapsed_ms);
        }
 
-       return sensor_activate(handle, enabled);
+       return ret;
 }
 
 
-static int set_delay(struct sensors_poll_device_t* dev, int handle, int64_t ns)
+static int set_delay (__attribute__((unused)) struct sensors_poll_device_t* dev,
+                     int handle, int64_t ns)
 {
+       int i;
+
        if (init_count == 0 || handle < 0 || handle >= sensor_count)
                return -EINVAL;
 
+       /*
+        * If this sensor relies on other sensors, try to propagate the
+        * requested sampling rate to the base sensors.
+        */
+
+       for (i=0; i<sensor[handle].base_count; i++)
+               sensor_set_delay(sensor[handle].base[i], ns);
+
        return sensor_set_delay(handle, ns);
 }
 
 
-static int poll(struct sensors_poll_device_t* dev, sensors_event_t* data,
-               int count)
+static int poll (__attribute__((unused)) struct sensors_poll_device_t* dev,
+                sensors_event_t* data, int count)
 {
        if (init_count == 0 || !data || count < 1)
                return -EINVAL;
@@ -58,19 +103,24 @@ static int poll(struct sensors_poll_device_t* dev, sensors_event_t* data,
        return sensor_poll(data, count);
 }
 
-static int batch (struct sensors_poll_device_1* dev,
-            int sensor_handle, int flags, int64_t sampling_period_ns,
-            int64_t max_report_latency_ns)
+
+static int batch (__attribute__((unused)) struct sensors_poll_device_1* dev,
+                 int sensor_handle, __attribute__((unused)) int flags,
+                 int64_t sampling_period_ns,
+                 __attribute__((unused)) int64_t max_report_latency_ns)
 {
        return set_delay ((struct sensors_poll_device_t*)dev,
                sensor_handle, sampling_period_ns);
 }
 
-static int flush(struct sensors_poll_device_1* dev, int handle)
+static int flush (__attribute__((unused)) struct sensors_poll_device_1* dev,
+                 int handle)
 {
        return sensor_flush (handle);
 }
-static int close_module(hw_device_t *device)
+
+
+static int close_module (__attribute__((unused)) hw_device_t *device)
 {
        if (init_count == 0)
                return -EINVAL;