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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef hal_gonk_GonkSensorsHelpers_h
#define hal_gonk_GonkSensorsHelpers_h
#include <mozilla/ipc/DaemonSocketPDU.h>
#include <mozilla/ipc/DaemonSocketPDUHelpers.h>
#include "SensorsTypes.h"
namespace mozilla {
namespace hal {
using mozilla::ipc::DaemonSocketPDU;
using mozilla::ipc::DaemonSocketPDUHeader;
using mozilla::ipc::DaemonSocketPDUHelpers::Convert;
using mozilla::ipc::DaemonSocketPDUHelpers::PackPDU;
using mozilla::ipc::DaemonSocketPDUHelpers::UnpackPDU;
using namespace mozilla::ipc::DaemonSocketPDUHelpers;
//
// Conversion
//
// The functions below convert the input value to the output value's
// type and perform extension tests on the validity of the result. On
// success the output value will be returned in |aOut|. The functions
// return NS_OK on success, or an XPCOM error code otherwise.
//
// See the documentation of the HAL IPC framework for more information
// on conversion functions.
//
nsresult
Convert(int32_t aIn, SensorsStatus& aOut)
{
static const uint8_t sStatus[] = {
[0] = SENSORS_STATUS_NO_CONTACT, // '-1'
[1] = SENSORS_STATUS_UNRELIABLE, // '0'
[2] = SENSORS_STATUS_ACCURACY_LOW, // '1'
[3] = SENSORS_STATUS_ACCURACY_MEDIUM, // '2'
[4] = SENSORS_STATUS_ACCURACY_HIGH // '3'
};
static const int8_t sOffset = -1; // '-1' is the lower bound of the status
if (MOZ_HAL_IPC_CONVERT_WARN_IF(aIn < sOffset, int32_t, SensorsStatus) ||
MOZ_HAL_IPC_CONVERT_WARN_IF(
aIn >= (static_cast<ssize_t>(MOZ_ARRAY_LENGTH(sStatus)) + sOffset),
int32_t, SensorsStatus)) {
return NS_ERROR_ILLEGAL_VALUE;
}
aOut = static_cast<SensorsStatus>(sStatus[aIn - sOffset]);
return NS_OK;
}
nsresult
Convert(uint8_t aIn, SensorsDeliveryMode& aOut)
{
static const uint8_t sMode[] = {
[0x00] = SENSORS_DELIVERY_MODE_BEST_EFFORT,
[0x01] = SENSORS_DELIVERY_MODE_IMMEDIATE
};
if (MOZ_HAL_IPC_CONVERT_WARN_IF(
aIn >= MOZ_ARRAY_LENGTH(sMode), uint8_t, SensorsDeliveryMode)) {
return NS_ERROR_ILLEGAL_VALUE;
}
aOut = static_cast<SensorsDeliveryMode>(sMode[aIn]);
return NS_OK;
}
nsresult
Convert(uint8_t aIn, SensorsError& aOut)
{
static const uint8_t sError[] = {
[0x00] = SENSORS_ERROR_NONE,
[0x01] = SENSORS_ERROR_FAIL,
[0x02] = SENSORS_ERROR_NOT_READY,
[0x03] = SENSORS_ERROR_NOMEM,
[0x04] = SENSORS_ERROR_BUSY,
[0x05] = SENSORS_ERROR_DONE,
[0x06] = SENSORS_ERROR_UNSUPPORTED,
[0x07] = SENSORS_ERROR_PARM_INVALID
};
if (MOZ_HAL_IPC_CONVERT_WARN_IF(
aIn >= MOZ_ARRAY_LENGTH(sError), uint8_t, SensorsError)) {
return NS_ERROR_ILLEGAL_VALUE;
}
aOut = static_cast<SensorsError>(sError[aIn]);
return NS_OK;
}
nsresult
Convert(uint8_t aIn, SensorsTriggerMode& aOut)
{
static const uint8_t sMode[] = {
[0x00] = SENSORS_TRIGGER_MODE_CONTINUOUS,
[0x01] = SENSORS_TRIGGER_MODE_ON_CHANGE,
[0x02] = SENSORS_TRIGGER_MODE_ONE_SHOT,
[0x03] = SENSORS_TRIGGER_MODE_SPECIAL
};
if (MOZ_HAL_IPC_CONVERT_WARN_IF(
aIn >= MOZ_ARRAY_LENGTH(sMode), uint8_t, SensorsTriggerMode)) {
return NS_ERROR_ILLEGAL_VALUE;
}
aOut = static_cast<SensorsTriggerMode>(sMode[aIn]);
return NS_OK;
}
nsresult
Convert(uint32_t aIn, SensorsType& aOut)
{
static const uint8_t sType[] = {
[0x00] = 0, // invalid, required by gcc
[0x01] = SENSORS_TYPE_ACCELEROMETER,
[0x02] = SENSORS_TYPE_GEOMAGNETIC_FIELD,
[0x03] = SENSORS_TYPE_ORIENTATION,
[0x04] = SENSORS_TYPE_GYROSCOPE,
[0x05] = SENSORS_TYPE_LIGHT,
[0x06] = SENSORS_TYPE_PRESSURE,
[0x07] = SENSORS_TYPE_TEMPERATURE,
[0x08] = SENSORS_TYPE_PROXIMITY,
[0x09] = SENSORS_TYPE_GRAVITY,
[0x0a] = SENSORS_TYPE_LINEAR_ACCELERATION,
[0x0b] = SENSORS_TYPE_ROTATION_VECTOR,
[0x0c] = SENSORS_TYPE_RELATIVE_HUMIDITY,
[0x0d] = SENSORS_TYPE_AMBIENT_TEMPERATURE,
[0x0e] = SENSORS_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
[0x0f] = SENSORS_TYPE_GAME_ROTATION_VECTOR,
[0x10] = SENSORS_TYPE_GYROSCOPE_UNCALIBRATED,
[0x11] = SENSORS_TYPE_SIGNIFICANT_MOTION,
[0x12] = SENSORS_TYPE_STEP_DETECTED,
[0x13] = SENSORS_TYPE_STEP_COUNTER,
[0x14] = SENSORS_TYPE_GEOMAGNETIC_ROTATION_VECTOR,
[0x15] = SENSORS_TYPE_HEART_RATE,
[0x16] = SENSORS_TYPE_TILT_DETECTOR,
[0x17] = SENSORS_TYPE_WAKE_GESTURE,
[0x18] = SENSORS_TYPE_GLANCE_GESTURE,
[0x19] = SENSORS_TYPE_PICK_UP_GESTURE,
[0x1a] = SENSORS_TYPE_WRIST_TILT_GESTURE
};
if (MOZ_HAL_IPC_CONVERT_WARN_IF(
!aIn, uint32_t, SensorsType) ||
MOZ_HAL_IPC_CONVERT_WARN_IF(
aIn >= MOZ_ARRAY_LENGTH(sType), uint32_t, SensorsType)) {
return NS_ERROR_ILLEGAL_VALUE;
}
aOut = static_cast<SensorsType>(sType[aIn]);
return NS_OK;
}
nsresult
Convert(nsresult aIn, SensorsError& aOut)
{
if (NS_SUCCEEDED(aIn)) {
aOut = SENSORS_ERROR_NONE;
} else if (aIn == NS_ERROR_OUT_OF_MEMORY) {
aOut = SENSORS_ERROR_NOMEM;
} else if (aIn == NS_ERROR_ILLEGAL_VALUE) {
aOut = SENSORS_ERROR_PARM_INVALID;
} else {
aOut = SENSORS_ERROR_FAIL;
}
return NS_OK;
}
//
// Packing
//
// Pack functions store a value in PDU. See the documentation of the
// HAL IPC framework for more information.
//
// There are currently no sensor-specific pack functions necessary. If
// you add one, put it below.
//
//
// Unpacking
//
// Unpack function retrieve a value from a PDU. The functions return
// NS_OK on success, or an XPCOM error code otherwise. On sucess, the
// returned value is stored in the second argument |aOut|.
//
// See the documentation of the HAL IPC framework for more information
// on unpack functions.
//
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsDeliveryMode& aOut)
{
return UnpackPDU(aPDU, UnpackConversion<uint8_t, SensorsDeliveryMode>(aOut));
}
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsError& aOut)
{
return UnpackPDU(aPDU, UnpackConversion<uint8_t, SensorsError>(aOut));
}
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsEvent& aOut);
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsStatus& aOut)
{
return UnpackPDU(aPDU, UnpackConversion<int32_t, SensorsStatus>(aOut));
}
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsTriggerMode& aOut)
{
return UnpackPDU(aPDU, UnpackConversion<uint8_t, SensorsTriggerMode>(aOut));
}
nsresult
UnpackPDU(DaemonSocketPDU& aPDU, SensorsType& aOut)
{
return UnpackPDU(aPDU, UnpackConversion<uint32_t, SensorsType>(aOut));
}
} // namespace hal
} // namespace mozilla
#endif // hal_gonk_GonkSensorsHelpers_h
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