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Non-root android support #1150

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Non-root android support #1150

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703160f
added android support
AlexandreRouma Sep 1, 2022
e523c92
cmake bugfix
AlexandreRouma Sep 1, 2022
00e9589
more bugfix
AlexandreRouma Sep 1, 2022
42d039b
bugfix
AlexandreRouma Sep 1, 2022
c07b679
added missing chedk
AlexandreRouma Sep 2, 2022
2c83606
modifications
AlexandreRouma Sep 3, 2022
a553437
Rename option in cmake file
AlexandreRouma Jan 31, 2023
b1275e9
Renamed option in library code
AlexandreRouma Jan 31, 2023
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2 changes: 2 additions & 0 deletions host/hackrf-tools/src/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,8 @@ if(MSVC)
../getopt/getopt.c
)
LIST(APPEND TOOLS_LINK_LIBS ${FFTW_LIBRARIES})
elseif(ANDROID)
LIST(APPEND TOOLS_LINK_LIBS m ${FFTW_LIBRARIES})
else()
LIST(APPEND TOOLS_LINK_LIBS m fftw3f)
endif()
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5 changes: 5 additions & 0 deletions host/libhackrf/CMakeLists.txt
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Expand Up @@ -33,6 +33,11 @@ include(${PROJECT_SOURCE_DIR}/../cmake/set_release.cmake)
add_definitions(-DLIBRARY_RELEASE="${RELEASE}")
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../cmake/modules)

option(DISABLE_USB_DEVICE_DISCOVERY "Prevent libusb from trying to enumerate devices. Useful on non-root android" OFF)
if (DISABLE_USB_DEVICE_DISCOVERY)
add_definitions(-DDISABLE_USB_DEVICE_DISCOVERY)
endif()

if(MSVC)
set(THREADS_USE_PTHREADS_WIN32 true)
else()
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35 changes: 35 additions & 0 deletions host/libhackrf/src/hackrf.c
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Expand Up @@ -415,6 +415,11 @@ int ADDCALL hackrf_init(void)
return HACKRF_SUCCESS;
}

#ifdef DISABLE_USB_DEVICE_DISCOVERY
// LibUSB does not support device discovery on android
libusb_set_option(NULL, LIBUSB_OPTION_NO_DEVICE_DISCOVERY, NULL);
#endif

libusb_error = libusb_init(&g_libusb_context);
if (libusb_error != 0) {
last_libusb_error = libusb_error;
Expand Down Expand Up @@ -754,6 +759,36 @@ int ADDCALL hackrf_open_by_serial(
return hackrf_open_setup(usb_device, device);
}

int ADDCALL hackrf_open_by_fd(
int fd,
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I think we should take intptr_t sys_dev here instead and pass it straight through to libusb. Looking back at at the PR for the libusb function (libusb/libusb#242 (comment)), they made that choice to make it more general across different platforms so I think we should do the same and leave it up to the user to do any platform-specific conversion/checking.

hackrf_device** device)
{
#ifndef _WIN32
libusb_device_handle* usb_device;

if (fd < 0) {
return HACKRF_ERROR_INVALID_PARAM;
}

if (device == NULL) {
return HACKRF_ERROR_INVALID_PARAM;
}

int err = libusb_wrap_sys_device(g_libusb_context, (intptr_t)fd, &usb_device);
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This function was added fairly recently (in libusb 1.0.23) so I think we should add an ifdef on LIBUSB_API_VERSION and return unsupported otherwise, to allow for building with older versions.

if (err) {
return HACKRF_ERROR_NOT_FOUND;
}

if (usb_device == NULL) {
return HACKRF_ERROR_NOT_FOUND;
}

return hackrf_open_setup(usb_device, device);
#else
return HACKRF_ERROR_UNSUPPORTED;
#endif
}

int ADDCALL hackrf_device_list_open(
hackrf_device_list_t* list,
int idx,
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5 changes: 5 additions & 0 deletions host/libhackrf/src/hackrf.h
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Expand Up @@ -63,6 +63,7 @@ enum hackrf_error {
HACKRF_ERROR_NOT_FOUND = -5,
HACKRF_ERROR_BUSY = -6,
HACKRF_ERROR_NO_MEM = -11,
HACKRF_ERROR_UNSUPPORTED = -12,
HACKRF_ERROR_LIBUSB = -1000,
HACKRF_ERROR_THREAD = -1001,
HACKRF_ERROR_STREAMING_THREAD_ERR = -1002,
Expand Down Expand Up @@ -223,6 +224,10 @@ extern ADDAPI int ADDCALL hackrf_open_by_serial(
const char* const desired_serial_number,
hackrf_device** device);

extern ADDAPI int ADDCALL hackrf_open_by_fd(
int fd,
hackrf_device** device);

extern ADDAPI int ADDCALL hackrf_close(hackrf_device* device);

extern ADDAPI int ADDCALL hackrf_start_rx(
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