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#include "libdivecomputer.h"
#include <libdivecomputer/context.h>
#include <libdivecomputer/custom.h>
#include <cstring>
#include <QAndroidJniObject>
#include <QAndroidJniEnvironment>
#include <QtAndroid>
#include <thread>
#include <android/log.h>
#include "serial_usb_android.h"
#define INFO(context, fmt, ...) __android_log_print(ANDROID_LOG_DEBUG, __FILE__, "INFO: " fmt "\n", ##__VA_ARGS__)
#define ERROR(context, fmt, ...) __android_log_print(ANDROID_LOG_DEBUG, __FILE__, "ERROR: " fmt "\n", ##__VA_ARGS__)
#define TRACE INFO
static dc_status_t serial_usb_android_sleep(void *io, unsigned int timeout)
{
TRACE (device->context, "%s: %i", __FUNCTION__, timeout);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_INVALIDARGS;
std::this_thread::sleep_for(std::chrono::milliseconds(timeout));
return DC_STATUS_SUCCESS;
}
static dc_status_t serial_usb_android_set_timeout(void *io, int timeout)
{
TRACE (device->context, "%s: %i", __FUNCTION__, timeout);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_INVALIDARGS;
return static_cast<dc_status_t>(device->callMethod<jint>("set_timeout", "(I)I", timeout));
}
static dc_status_t serial_usb_android_set_dtr(void *io, unsigned int value)
{
TRACE (device->context, "%s: %i", __FUNCTION__, value);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_INVALIDARGS;
return static_cast<dc_status_t>(device->callMethod<jint>("set_dtr", "(Z)I", value));
}
static dc_status_t serial_usb_android_set_rts(void *io, unsigned int value)
{
TRACE (device->context, "%s: %i", __FUNCTION__, value);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_INVALIDARGS;
return static_cast<dc_status_t>(device->callMethod<jint>("set_rts", "(Z)I", value));
}
static dc_status_t serial_usb_android_close(void *io)
{
TRACE (device->context, "%s", __FUNCTION__);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_SUCCESS;
auto retval = static_cast<dc_status_t>(device->callMethod<jint>("close", "()I"));
delete device;
return retval;
}
static dc_status_t serial_usb_android_purge(void *io, dc_direction_t direction)
{
TRACE (device->context, "%s: %i", __FUNCTION__, direction);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == nullptr)
return DC_STATUS_INVALIDARGS;
return static_cast<dc_status_t>(device->callMethod<jint>("purge", "(I)I", direction));
}
static dc_status_t serial_usb_android_configure(void *io, unsigned int baudrate, unsigned int databits, dc_parity_t parity,
dc_stopbits_t stopbits, dc_flowcontrol_t flowcontrol)
{
TRACE (device->context, "%s: baudrate=%i, databits=%i, parity=%i, stopbits=%i, flowcontrol=%i", __FUNCTION__,
baudrate, databits, parity, stopbits, flowcontrol);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == NULL)
return DC_STATUS_INVALIDARGS;
return static_cast<dc_status_t>(device->callMethod<jint>("configure", "(IIII)I", baudrate, databits, parity, stopbits));
}
/*
static dc_status_t serial_usb_android_get_available (void *io, size_t *value)
{
INFO (device->context, "%s", __FUNCTION__);
QAndroidJniObject *device = static_cast<QAndroidJniObject*>(io);
if (device == NULL)
return DC_STATUS_INVALIDARGS;
auto retval = device->callMethod<jint>("get_available", "()I");
if(retval < 0){
INFO (device->context, "Error in %s, retval %i", __FUNCTION__, retval);
return static_cast<dc_status_t>(retval);
}
*value = retval;
return DC_STATUS_SUCCESS;
}
*/
static dc_status_t serial_usb_android_read(void *io, void *data, size_t size, size_t *actual)
{
TRACE (device->context, "%s: size: %i", __FUNCTION__, size);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == NULL)
return DC_STATUS_INVALIDARGS;
QAndroidJniEnvironment env;
jbyteArray array = env->NewByteArray(size);
env->SetByteArrayRegion(array, 0, size, (const jbyte *) data);
auto retval = device->callMethod<jint>("read", "([B)I", array);
if (retval < 0) {
env->DeleteLocalRef(array);
INFO (device->context, "Error in %s, retval %i", __FUNCTION__, retval);
return static_cast<dc_status_t>(retval);
}
*actual = retval;
env->GetByteArrayRegion(array, 0, retval, (jbyte *) data);
env->DeleteLocalRef(array);
TRACE (device->context, "%s: actual read size: %i", __FUNCTION__, retval);
if (retval < size)
return DC_STATUS_TIMEOUT;
else
return DC_STATUS_SUCCESS;
}
static dc_status_t serial_usb_android_write(void *io, const void *data, size_t size, size_t *actual)
{
TRACE (device->context, "%s: size: %i", __FUNCTION__, size);
QAndroidJniObject *device = static_cast<QAndroidJniObject *>(io);
if (device == NULL)
return DC_STATUS_INVALIDARGS;
QAndroidJniEnvironment env;
jbyteArray array = env->NewByteArray(size);
env->SetByteArrayRegion(array, 0, size, (const jbyte *) data);
auto retval = device->callMethod<jint>("write", "([B)I", array);
env->DeleteLocalRef(array);
if (retval < 0) {
INFO (device->context, "Error in %s, retval %i", __FUNCTION__, retval);
return static_cast<dc_status_t>(retval);
}
*actual = retval;
TRACE (device->context, "%s: actual write size: %i", __FUNCTION__, retval);
return DC_STATUS_SUCCESS;
}
dc_status_t serial_usb_android_open(dc_iostream_t **iostream, dc_context_t *context, QAndroidJniObject usbDevice, std::string driverClassName)
{
TRACE(device->contxt, "%s", __FUNCTION__);
static const dc_custom_cbs_t callbacks = {
.set_timeout = serial_usb_android_set_timeout, /* set_timeout */
.set_dtr = serial_usb_android_set_dtr, /* set_dtr */
.set_rts = serial_usb_android_set_rts, /* set_rts */
//.get_available = serial_usb_android_get_available,
.configure = serial_usb_android_configure,
.read = serial_usb_android_read,
.write = serial_usb_android_write,
.purge = serial_usb_android_purge,
.sleep = serial_usb_android_sleep, /* sleep */
.close = serial_usb_android_close, /* close */
};
QAndroidJniObject localdevice = QAndroidJniObject::callStaticObjectMethod("org/subsurfacedivelog/mobile/AndroidSerial",
"open_android_serial",
"(Landroid/hardware/usb/UsbDevice;Ljava/lang/String;)Lorg/subsurfacedivelog/mobile/AndroidSerial;",
usbDevice.object<jobject>(),
QAndroidJniObject::fromString(driverClassName.c_str()).object());
if (localdevice == nullptr)
return DC_STATUS_IO;
QAndroidJniObject *device = new QAndroidJniObject(localdevice);
TRACE(device->contxt, "%s", "calling dc_custom_open())");
return dc_custom_open(iostream, context, DC_TRANSPORT_SERIAL, &callbacks, device);
}
std::vector<android_usb_serial_device_descriptor> serial_usb_android_get_devices(bool driverSelection)
{
std::vector<std::string> driverNames;
if (driverSelection)
driverNames = { "", "CdcAcmSerialDriver", "Ch34xSerialDriver", "Cp21xxSerialDriver", "FtdiSerialDriver", "ProlificSerialDriver" };
else
driverNames = {""};
// Get the current main activity of the application.
QAndroidJniObject activity = QtAndroid::androidActivity();
QAndroidJniObject usb_service = QAndroidJniObject::fromString("usb");
QAndroidJniEnvironment env;
// Get UsbManager from activity
QAndroidJniObject usbManager = activity.callObjectMethod("getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;", QAndroidJniObject::fromString("usb").object());
//UsbDevice[] arrayOfDevices = usbManager.getDeviceList().values().toArray();
QAndroidJniObject deviceListHashMap = usbManager.callObjectMethod("getDeviceList","()Ljava/util/HashMap;");
QAndroidJniObject deviceListCollection = deviceListHashMap.callObjectMethod("values", "()Ljava/util/Collection;");
jint numDevices = deviceListCollection.callMethod<jint>("size");
QAndroidJniObject arrayOfDevices = deviceListCollection.callObjectMethod("toArray", "()[Ljava/lang/Object;");
// Special case to keep a generic user-facing name if only one device is present.
if (numDevices == 1 && !driverSelection) {
// UsbDevice usbDevice = arrayOfDevices[0]
jobject value = env->GetObjectArrayElement(arrayOfDevices.object<jobjectArray>(), 0);
QAndroidJniObject usbDevice(value);
return std::vector<android_usb_serial_device_descriptor> { {QAndroidJniObject(usbDevice), "", "USB Connection"} };
} else {
std::vector<android_usb_serial_device_descriptor> retval;
for (int i = 0; i < numDevices ; i++) {
// UsbDevice usbDevice = arrayOfDevices[i]
jobject value = env->GetObjectArrayElement(arrayOfDevices.object<jobjectArray>(), i);
QAndroidJniObject usbDevice(value);
// std::string deviceName = usbDevice.getDeviceName()
QAndroidJniObject usbDeviceNameString = usbDevice.callObjectMethod<jstring>("getDeviceName");
const char *charArray = env->GetStringUTFChars(usbDeviceNameString.object<jstring>(), nullptr);
std::string deviceName(charArray);
env->ReleaseStringUTFChars(usbDeviceNameString.object<jstring>(), charArray);
// TODO the deviceName should probably be something better... Currently it's the /dev-filename.
for (std::string driverName : driverNames) {
std::string uiDeviceName;
if (driverName != "")
uiDeviceName = deviceName + " (" + driverName + ")";
else
uiDeviceName = deviceName + " (autoselect driver)";
retval.push_back({QAndroidJniObject(usbDevice), driverName, uiDeviceName});
}
}
return retval;
}
}
/*
* For testing and compatibility only, can be removed after the UI changes. Behaves exactly like the "old"
* implementation if only one device is attached.
*/
dc_status_t serial_usb_android_open(dc_iostream_t **iostream, dc_context_t *context)
{
std::vector<android_usb_serial_device_descriptor> devices = serial_usb_android_get_devices(false);
if(devices.empty())
return DC_STATUS_NODEVICE;
return serial_usb_android_open(iostream, context, devices[0].usbDevice, devices[0].className);
}
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