migrate opengl and system from development/tools

- components under system are moved one directory up like all other HALs

Change-Id: I03b870b870d83b247ac398cadfb155f03c9adfa0

2 files changed, 666 insertions, 0 deletions

diff --git a/sensors/Android.mk b/sensors/Android.mk
new file mode 100644
index 00000000..a1b8967e
--- /dev/null
+++ b/sensors/Android.mk
@@ -0,0 +1,30 @@
+# Copyright (C) 2009 The Android Open Source Project
+#
+# 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.
+
+
+LOCAL_PATH := $(call my-dir)
+
+# HAL module implemenation stored in
+# hw/<SENSORS_HARDWARE_MODULE_ID>.<ro.hardware>.so
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_SHARED_LIBRARIES := liblog libcutils
+LOCAL_SRC_FILES := sensors_qemu.c
+ifeq ($(TARGET_PRODUCT),vbox_x86)
+LOCAL_MODULE := sensors.vbox_x86
+else
+LOCAL_MODULE := sensors.goldfish
+endif
+include $(BUILD_SHARED_LIBRARY)
diff --git a/sensors/sensors_qemu.c b/sensors/sensors_qemu.c
new file mode 100644
index 00000000..9636cebd
--- /dev/null
+++ b/sensors/sensors_qemu.c
@@ -0,0 +1,636 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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.
+ */
+
+/* this implements a sensors hardware library for the Android emulator.
+ * the following code should be built as a shared library that will be
+ * placed into /system/lib/hw/sensors.goldfish.so
+ *
+ * it will be loaded by the code in hardware/libhardware/hardware.c
+ * which is itself called from com_android_server_SensorService.cpp
+ */
+
+
+/* we connect with the emulator through the "sensors" qemud service
+ */
+#define  SENSORS_SERVICE_NAME "sensors"
+
+#define LOG_TAG "QemuSensors"
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <cutils/log.h>
+#include <cutils/native_handle.h>
+#include <cutils/sockets.h>
+#include <hardware/sensors.h>
+
+#if 0
+#define  D(...)  ALOGD(__VA_ARGS__)
+#else
+#define  D(...)  ((void)0)
+#endif
+
+#define  E(...)  ALOGE(__VA_ARGS__)
+
+#include <hardware/qemud.h>
+
+/** SENSOR IDS AND NAMES
+ **/
+
+#define MAX_NUM_SENSORS 5
+
+#define SUPPORTED_SENSORS  ((1<<MAX_NUM_SENSORS)-1)
+
+#define  ID_BASE           SENSORS_HANDLE_BASE
+#define  ID_ACCELERATION   (ID_BASE+0)
+#define  ID_MAGNETIC_FIELD (ID_BASE+1)
+#define  ID_ORIENTATION    (ID_BASE+2)
+#define  ID_TEMPERATURE    (ID_BASE+3)
+#define  ID_PROXIMITY      (ID_BASE+4)
+
+#define  SENSORS_ACCELERATION   (1 << ID_ACCELERATION)
+#define  SENSORS_MAGNETIC_FIELD  (1 << ID_MAGNETIC_FIELD)
+#define  SENSORS_ORIENTATION     (1 << ID_ORIENTATION)
+#define  SENSORS_TEMPERATURE     (1 << ID_TEMPERATURE)
+#define  SENSORS_PROXIMITY       (1 << ID_PROXIMITY)
+
+#define  ID_CHECK(x)  ((unsigned)((x)-ID_BASE) < MAX_NUM_SENSORS)
+
+#define  SENSORS_LIST  \
+    SENSOR_(ACCELERATION,"acceleration") \
+    SENSOR_(MAGNETIC_FIELD,"magnetic-field") \
+    SENSOR_(ORIENTATION,"orientation") \
+    SENSOR_(TEMPERATURE,"temperature") \
+    SENSOR_(PROXIMITY,"proximity") \
+
+static const struct {
+    const char*  name;
+    int          id; } _sensorIds[MAX_NUM_SENSORS] =
+{
+#define SENSOR_(x,y)  { y, ID_##x },
+    SENSORS_LIST
+#undef  SENSOR_
+};
+
+static const char*
+_sensorIdToName( int  id )
+{
+    int  nn;
+    for (nn = 0; nn < MAX_NUM_SENSORS; nn++)
+        if (id == _sensorIds[nn].id)
+            return _sensorIds[nn].name;
+    return "<UNKNOWN>";
+}
+
+static int
+_sensorIdFromName( const char*  name )
+{
+    int  nn;
+
+    if (name == NULL)
+        return -1;
+
+    for (nn = 0; nn < MAX_NUM_SENSORS; nn++)
+        if (!strcmp(name, _sensorIds[nn].name))
+            return _sensorIds[nn].id;
+
+    return -1;
+}
+
+/** SENSORS POLL DEVICE
+ **
+ ** This one is used to read sensor data from the hardware.
+ ** We implement this by simply reading the data from the
+ ** emulator through the QEMUD channel.
+ **/
+
+typedef struct SensorPoll {
+    struct sensors_poll_device_t  device;
+    sensors_event_t               sensors[MAX_NUM_SENSORS];
+    int                           events_fd;
+    uint32_t                      pendingSensors;
+    int64_t                       timeStart;
+    int64_t                       timeOffset;
+    int                           fd;
+    uint32_t                      active_sensors;
+} SensorPoll;
+
+/* this must return a file descriptor that will be used to read
+ * the sensors data (it is passed to data__data_open() below
+ */
+static native_handle_t*
+control__open_data_source(struct sensors_poll_device_t *dev)
+{
+    SensorPoll*  ctl = (void*)dev;
+    native_handle_t* handle;
+
+    if (ctl->fd < 0) {
+        ctl->fd = qemud_channel_open(SENSORS_SERVICE_NAME);
+    }
+    D("%s: fd=%d", __FUNCTION__, ctl->fd);
+    handle = native_handle_create(1, 0);
+    handle->data[0] = dup(ctl->fd);
+    return handle;
+}
+
+static int
+control__activate(struct sensors_poll_device_t *dev,
+                  int handle,
+                  int enabled)
+{
+    SensorPoll*     ctl = (void*)dev;
+    uint32_t        mask, sensors, active, new_sensors, changed;
+    char            command[128];
+    int             ret;
+
+    D("%s: handle=%s (%d) fd=%d enabled=%d", __FUNCTION__,
+        _sensorIdToName(handle), handle, ctl->fd, enabled);
+
+    if (!ID_CHECK(handle)) {
+        E("%s: bad handle ID", __FUNCTION__);
+        return -1;
+    }
+
+    mask    = (1<<handle);
+    sensors = enabled ? mask : 0;
+
+    active      = ctl->active_sensors;
+    new_sensors = (active & ~mask) | (sensors & mask);
+    changed     = active ^ new_sensors;
+
+    if (!changed)
+        return 0;
+
+    snprintf(command, sizeof command, "set:%s:%d",
+                _sensorIdToName(handle), enabled != 0);
+
+    if (ctl->fd < 0) {
+        ctl->fd = qemud_channel_open(SENSORS_SERVICE_NAME);
+    }
+
+    ret = qemud_channel_send(ctl->fd, command, -1);
+    if (ret < 0) {
+        E("%s: when sending command errno=%d: %s", __FUNCTION__, errno, strerror(errno));
+        return -1;
+    }
+    ctl->active_sensors = new_sensors;
+
+    return 0;
+}
+
+static int
+control__set_delay(struct sensors_poll_device_t *dev, int32_t ms)
+{
+    SensorPoll*     ctl = (void*)dev;
+    char            command[128];
+
+    D("%s: dev=%p delay-ms=%d", __FUNCTION__, dev, ms);
+
+    snprintf(command, sizeof command, "set-delay:%d", ms);
+
+    return qemud_channel_send(ctl->fd, command, -1);
+}
+
+static int
+control__close(struct hw_device_t *dev)
+{
+    SensorPoll*  ctl = (void*)dev;
+    close(ctl->fd);
+    free(ctl);
+    return 0;
+}
+
+/* return the current time in nanoseconds */
+static int64_t
+data__now_ns(void)
+{
+    struct timespec  ts;
+
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+
+    return (int64_t)ts.tv_sec * 1000000000 + ts.tv_nsec;
+}
+
+static int
+data__data_open(struct sensors_poll_device_t *dev, native_handle_t* handle)
+{
+    SensorPoll*  data = (void*)dev;
+    int i;
+    D("%s: dev=%p fd=%d", __FUNCTION__, dev, handle->data[0]);
+    memset(&data->sensors, 0, sizeof(data->sensors));
+
+    data->pendingSensors = 0;
+    data->timeStart      = 0;
+    data->timeOffset     = 0;
+
+    data->events_fd = dup(handle->data[0]);
+    D("%s: dev=%p fd=%d (was %d)", __FUNCTION__, dev, data->events_fd, handle->data[0]);
+    native_handle_close(handle);
+    native_handle_delete(handle);
+    return 0;
+}
+
+static int
+data__data_close(struct sensors_poll_device_t *dev)
+{
+    SensorPoll*  data = (void*)dev;
+    D("%s: dev=%p", __FUNCTION__, dev);
+    if (data->events_fd >= 0) {
+        close(data->events_fd);
+        data->events_fd = -1;
+    }
+    return 0;
+}
+
+static int
+pick_sensor(SensorPoll*       data,
+            sensors_event_t*  values)
+{
+    uint32_t mask = SUPPORTED_SENSORS;
+    while (mask) {
+        uint32_t i = 31 - __builtin_clz(mask);
+        mask &= ~(1<<i);
+        if (data->pendingSensors & (1<<i)) {
+            data->pendingSensors &= ~(1<<i);
+            *values = data->sensors[i];
+            values->sensor = i;
+            values->version = sizeof(*values);
+
+            D("%s: %d [%f, %f, %f]", __FUNCTION__,
+                    i,
+                    values->data[0],
+                    values->data[1],
+                    values->data[2]);
+            return i;
+        }
+    }
+    ALOGE("No sensor to return!!! pendingSensors=%08x", data->pendingSensors);
+    // we may end-up in a busy loop, slow things down, just in case.
+    usleep(100000);
+    return -EINVAL;
+}
+
+static int
+data__poll(struct sensors_poll_device_t *dev, sensors_event_t* values)
+{
+    SensorPoll*  data = (void*)dev;
+    int fd = data->events_fd;
+
+    D("%s: data=%p", __FUNCTION__, dev);
+
+    // there are pending sensors, returns them now...
+    if (data->pendingSensors) {
+        return pick_sensor(data, values);
+    }
+
+    // wait until we get a complete event for an enabled sensor
+    uint32_t new_sensors = 0;
+
+    while (1) {
+        /* read the next event */
+        char     buff[256];
+        int      len = qemud_channel_recv(data->events_fd, buff, sizeof buff-1);
+        float    params[3];
+        int64_t  event_time;
+
+        if (len < 0) {
+            E("%s: len=%d, errno=%d: %s", __FUNCTION__, len, errno, strerror(errno));
+            return -errno;
+        }
+
+        buff[len] = 0;
+
+        /* "wake" is sent from the emulator to exit this loop. */
+        if (!strcmp((const char*)data, "wake")) {
+            return 0x7FFFFFFF;
+        }
+
+        /* "acceleration:<x>:<y>:<z>" corresponds to an acceleration event */
+        if (sscanf(buff, "acceleration:%g:%g:%g", params+0, params+1, params+2) == 3) {
+            new_sensors |= SENSORS_ACCELERATION;
+            data->sensors[ID_ACCELERATION].acceleration.x = params[0];
+            data->sensors[ID_ACCELERATION].acceleration.y = params[1];
+            data->sensors[ID_ACCELERATION].acceleration.z = params[2];
+            continue;
+        }
+
+        /* "orientation:<azimuth>:<pitch>:<roll>" is sent when orientation changes */
+        if (sscanf(buff, "orientation:%g:%g:%g", params+0, params+1, params+2) == 3) {
+            new_sensors |= SENSORS_ORIENTATION;
+            data->sensors[ID_ORIENTATION].orientation.azimuth = params[0];
+            data->sensors[ID_ORIENTATION].orientation.pitch   = params[1];
+            data->sensors[ID_ORIENTATION].orientation.roll    = params[2];
+            data->sensors[ID_ORIENTATION].orientation.status  = SENSOR_STATUS_ACCURACY_HIGH;
+            continue;
+        }
+
+        /* "magnetic:<x>:<y>:<z>" is sent for the params of the magnetic field */
+        if (sscanf(buff, "magnetic:%g:%g:%g", params+0, params+1, params+2) == 3) {
+            new_sensors |= SENSORS_MAGNETIC_FIELD;
+            data->sensors[ID_MAGNETIC_FIELD].magnetic.x = params[0];
+            data->sensors[ID_MAGNETIC_FIELD].magnetic.y = params[1];
+            data->sensors[ID_MAGNETIC_FIELD].magnetic.z = params[2];
+            data->sensors[ID_MAGNETIC_FIELD].magnetic.status = SENSOR_STATUS_ACCURACY_HIGH;
+            continue;
+        }
+
+        /* "temperature:<celsius>" */
+        if (sscanf(buff, "temperature:%g", params+0) == 1) {
+            new_sensors |= SENSORS_TEMPERATURE;
+            data->sensors[ID_TEMPERATURE].temperature = params[0];
+            continue;
+        }
+
+        /* "proximity:<value>" */
+        if (sscanf(buff, "proximity:%g", params+0) == 1) {
+            new_sensors |= SENSORS_PROXIMITY;
+            data->sensors[ID_PROXIMITY].distance = params[0];
+            continue;
+        }
+
+        /* "sync:<time>" is sent after a series of sensor events.
+         * where 'time' is expressed in micro-seconds and corresponds
+         * to the VM time when the real poll occured.
+         */
+        if (sscanf(buff, "sync:%lld", &event_time) == 1) {
+            if (new_sensors) {
+                data->pendingSensors = new_sensors;
+                int64_t t = event_time * 1000LL;  /* convert to nano-seconds */
+
+                /* use the time at the first sync: as the base for later
+                 * time values */
+                if (data->timeStart == 0) {
+                    data->timeStart  = data__now_ns();
+                    data->timeOffset = data->timeStart - t;
+                }
+                t += data->timeOffset;
+
+                while (new_sensors) {
+                    uint32_t i = 31 - __builtin_clz(new_sensors);
+                    new_sensors &= ~(1<<i);
+                    data->sensors[i].timestamp = t;
+                }
+                return pick_sensor(data, values);
+            } else {
+                D("huh ? sync without any sensor data ?");
+            }
+            continue;
+        }
+        D("huh ? unsupported command");
+    }
+    return -1;
+}
+
+static int
+data__close(struct hw_device_t *dev)
+{
+    SensorPoll* data = (SensorPoll*)dev;
+    if (data) {
+        if (data->events_fd >= 0) {
+            //ALOGD("(device close) about to close fd=%d", data->events_fd);
+            close(data->events_fd);
+        }
+        free(data);
+    }
+    return 0;
+}
+
+/** SENSORS POLL DEVICE FUNCTIONS **/
+
+static int poll__close(struct hw_device_t* dev)
+{
+    SensorPoll*  ctl = (void*)dev;
+    close(ctl->fd);
+    if (ctl->fd >= 0) {
+        close(ctl->fd);
+    }
+    if (ctl->events_fd >= 0) {
+        close(ctl->events_fd);
+    }
+    free(ctl);
+    return 0;
+}
+
+static int poll__poll(struct sensors_poll_device_t *dev,
+            sensors_event_t* data, int count)
+{
+    SensorPoll*  datadev = (void*)dev;
+    int ret;
+    int i;
+    D("%s: dev=%p data=%p count=%d ", __FUNCTION__, dev, data, count);
+
+    for (i = 0; i < count; i++)  {
+        ret = data__poll(dev, data);
+        data++;
+        if (ret > MAX_NUM_SENSORS || ret < 0) {
+           return i;
+        }
+        if (!datadev->pendingSensors) {
+           return i + 1;
+        }
+    }
+    return count;
+}
+
+static int poll__activate(struct sensors_poll_device_t *dev,
+            int handle, int enabled)
+{
+    int ret;
+    native_handle_t* hdl;
+    SensorPoll*  ctl = (void*)dev;
+    D("%s: dev=%p handle=%x enable=%d ", __FUNCTION__, dev, handle, enabled);
+    if (ctl->fd < 0) {
+        D("%s: OPEN CTRL and DATA ", __FUNCTION__);
+        hdl = control__open_data_source(dev);
+        ret = data__data_open(dev,hdl);
+    }
+    ret = control__activate(dev, handle, enabled);
+    return ret;
+}
+
+static int poll__setDelay(struct sensors_poll_device_t *dev,
+            int handle, int64_t ns)
+{
+    // TODO
+    return 0;
+}
+
+/** MODULE REGISTRATION SUPPORT
+ **
+ ** This is required so that hardware/libhardware/hardware.c
+ ** will dlopen() this library appropriately.
+ **/
+
+/*
+ * the following is the list of all supported sensors.
+ * this table is used to build sSensorList declared below
+ * according to which hardware sensors are reported as
+ * available from the emulator (see get_sensors_list below)
+ *
+ * note: numerical values for maxRange/resolution/power were
+ *       taken from the reference AK8976A implementation
+ */
+static const struct sensor_t sSensorListInit[] = {
+        { .name       = "Goldfish 3-axis Accelerometer",
+          .vendor     = "The Android Open Source Project",
+          .version    = 1,
+          .handle     = ID_ACCELERATION,
+          .type       = SENSOR_TYPE_ACCELEROMETER,
+          .maxRange   = 2.8f,
+          .resolution = 1.0f/4032.0f,
+          .power      = 3.0f,
+          .reserved   = {}
+        },
+
+        { .name       = "Goldfish 3-axis Magnetic field sensor",
+          .vendor     = "The Android Open Source Project",
+          .version    = 1,
+          .handle     = ID_MAGNETIC_FIELD,
+          .type       = SENSOR_TYPE_MAGNETIC_FIELD,
+          .maxRange   = 2000.0f,
+          .resolution = 1.0f,
+          .power      = 6.7f,
+          .reserved   = {}
+        },
+
+        { .name       = "Goldfish Orientation sensor",
+          .vendor     = "The Android Open Source Project",
+          .version    = 1,
+          .handle     = ID_ORIENTATION,
+          .type       = SENSOR_TYPE_ORIENTATION,
+          .maxRange   = 360.0f,
+          .resolution = 1.0f,
+          .power      = 9.7f,
+          .reserved   = {}
+        },
+
+        { .name       = "Goldfish Temperature sensor",
+          .vendor     = "The Android Open Source Project",
+          .version    = 1,
+          .handle     = ID_TEMPERATURE,
+          .type       = SENSOR_TYPE_TEMPERATURE,
+          .maxRange   = 80.0f,
+          .resolution = 1.0f,
+          .power      = 0.0f,
+          .reserved   = {}
+        },
+
+        { .name       = "Goldfish Proximity sensor",
+          .vendor     = "The Android Open Source Project",
+          .version    = 1,
+          .handle     = ID_PROXIMITY,
+          .type       = SENSOR_TYPE_PROXIMITY,
+          .maxRange   = 1.0f,
+          .resolution = 1.0f,
+          .power      = 20.0f,
+          .reserved   = {}
+        },
+};
+
+static struct sensor_t  sSensorList[MAX_NUM_SENSORS];
+
+static int sensors__get_sensors_list(struct sensors_module_t* module,
+        struct sensor_t const** list)
+{
+    int  fd = qemud_channel_open(SENSORS_SERVICE_NAME);
+    char buffer[12];
+    int  mask, nn, count;
+
+    int  ret;
+    if (fd < 0) {
+        E("%s: no qemud connection", __FUNCTION__);
+        return 0;
+    }
+    ret = qemud_channel_send(fd, "list-sensors", -1);
+    if (ret < 0) {
+        E("%s: could not query sensor list: %s", __FUNCTION__,
+          strerror(errno));
+        close(fd);
+        return 0;
+    }
+    ret = qemud_channel_recv(fd, buffer, sizeof buffer-1);
+    if (ret < 0) {
+        E("%s: could not receive sensor list: %s", __FUNCTION__,
+          strerror(errno));
+        close(fd);
+        return 0;
+    }
+    buffer[ret] = 0;
+    close(fd);
+
+    /* the result is a integer used as a mask for available sensors */
+    mask  = atoi(buffer);
+    count = 0;
+    for (nn = 0; nn < MAX_NUM_SENSORS; nn++) {
+        if (((1 << nn) & mask) == 0)
+            continue;
+
+        sSensorList[count++] = sSensorListInit[nn];
+    }
+    D("%s: returned %d sensors (mask=%d)", __FUNCTION__, count, mask);
+    *list = sSensorList;
+    return count;
+}
+
+
+static int
+open_sensors(const struct hw_module_t* module,
+             const char*               name,
+             struct hw_device_t*      *device)
+{
+    int  status = -EINVAL;
+
+    D("%s: name=%s", __FUNCTION__, name);
+
+    if (!strcmp(name, SENSORS_HARDWARE_POLL)) {
+        SensorPoll *dev = malloc(sizeof(*dev));
+
+        memset(dev, 0, sizeof(*dev));
+
+        dev->device.common.tag     = HARDWARE_DEVICE_TAG;
+        dev->device.common.version = 0;
+        dev->device.common.module  = (struct hw_module_t*) module;
+        dev->device.common.close   = poll__close;
+        dev->device.poll           = poll__poll;
+        dev->device.activate       = poll__activate;
+        dev->device.setDelay       = poll__setDelay;
+        dev->events_fd             = -1;
+        dev->fd                    = -1;
+
+        *device = &dev->device.common;
+        status  = 0;
+    }
+    return status;
+}
+
+
+static struct hw_module_methods_t sensors_module_methods = {
+    .open = open_sensors
+};
+
+struct sensors_module_t HAL_MODULE_INFO_SYM = {
+    .common = {
+        .tag = HARDWARE_MODULE_TAG,
+        .version_major = 1,
+        .version_minor = 0,
+        .id = SENSORS_HARDWARE_MODULE_ID,
+        .name = "Goldfish SENSORS Module",
+        .author = "The Android Open Source Project",
+        .methods = &sensors_module_methods,
+    },
+    .get_sensors_list = sensors__get_sensors_list
+};