The introduction of multi_usrp_rfnoc caused
multi_usrp::get_device()->get_tree() to segfault for gen3 devices.
In defcb174, we introduced a fix for this (multi_usrp::get_tree()) but
we didn't apply it to internal utilities.
That means the uhd_cal_* utilties were broken, along with certain
sections of the C API, and the latency test suite. This fixes the
segfault issue.
This adds a separate version of multi_usrp for RFNoC devices. It is
compatible with RFNoC devices only, and prefers C++ APIs over property
tree usage. The factory of multi_usrp is modified such that it picks the
correct version, users of multi_usrp don't care about this change.
This also introduces some API changes:
- Removing redundant GPIO functions. Now all GPIO control, setting, and
readback is done with uint32_t's.
- Adding getter/setter for GPIO source. This was done to simplify the
other GPIO settings, as the source for each pin is not always a
binary. The CTRL mode, for example, can either be ATR or GPIO.
However, the source can be controlled by various radios or "PS" or
some other source.
- Removing the mask from the RFNoC radio controllers' set_gpio_attr().
- Adding state caching to gpio_atr_3000, and a getter for it. Whenever
an attribute is set, that value is cached, and can now be retreieved.
- Remove low-level register API. Since UHD 3.10, there is no USRP that
implements that API.
Modifying the filter API in the following ways:
- Splitting filter API getter/setter/list into separate RX and TX
functions
- Adding channel numbers as an argument
- The filter name will no longer be a property tree path, but rather a
filter name. For RFNoC devices, this will take the form
`BLOCK_ID:FILTER_NAME`. For non-RFNoC devices, this will just be the
filter name (e.g. `HB_1`)
- Removing search mask from listing function. Users can do their own
searching
Co-Authored-By: Martin Braun <martin.braun@ettus.com>
The C/C++ standards don't define what time_t is, only that it is
arithmetic (and real for C11, and integral for C++). It should not be
used in portable software and is only used as the return value for some
libc calls.
A common definition for time_t is int64_t, so we'll switch to that
permanently in our own APIs. System APIs will of course stick with
time_t.
uhd_tx_streamer_last_error and uhd_usrp_last_error use
UHD_SAFE_C and so uhd_rx_streamer_last_error should as well
in order to be consistent.
Currently using UHD_SAFE_C_SAVE_ERROR.
* Cleaned up usage of handles vs. handle pointers
* Store global string for last error thrown
* Removed uhd::device_addr_t handle, added std::vector<std::string> handle
* Wrapped uhd::device_addrs_t, added find functions for multi_usrp, multi_usrp_clock
* Replaced getopt with public domain implementation
* Minor bugfixes
* multi_usrp, multi_usrp_clock, and associated classes accessible through C
* Added Doxygen documentation explaining structure and API
* Simple RX and TX streaming examples
* Unit tests for different parts of C interface and C++ error conversion
