diff options
| -rw-r--r-- | host/cmake/Modules/FindLIBERIO.cmake | 35 | ||||
| -rw-r--r-- | host/include/config.h.in | 1 | ||||
| -rw-r--r-- | host/lib/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | host/lib/include/uhdlib/transport/liberio_link.hpp | 178 | ||||
| -rw-r--r-- | host/lib/transport/CMakeLists.txt | 7 | ||||
| -rw-r--r-- | host/lib/transport/liberio_link.cpp | 154 | ||||
| -rw-r--r-- | host/lib/usrp/mpmd/mpmd_link_if_mgr.hpp | 2 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/liberiotable.py | 60 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/periph_manager/base.py | 7 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/periph_manager/e320.py | 3 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/xports/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/xports/__init__.py | 1 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/xports/xportmgr_liberio.py | 74 |
14 files changed, 2 insertions, 524 deletions
diff --git a/host/cmake/Modules/FindLIBERIO.cmake b/host/cmake/Modules/FindLIBERIO.cmake deleted file mode 100644 index 77fd49735..000000000 --- a/host/cmake/Modules/FindLIBERIO.cmake +++ /dev/null @@ -1,35 +0,0 @@ -# -# Copyright 2017 Ettus Research -# Copyright 2018 Ettus Research, a National Instruments Company -# -# SPDX-License-Identifier: GPL-3.0-or-later -# -# - Find liberio -# Find the liberio includes and client library -# This module defines -# LIBERIO_INCLUDE_DIR, where to find liberio/dma.h -# LIBERIO_LIBRARIES, the libraries needed by a liberio client. -# LIBERIO_FOUND, If false, do not try to use liberio. -# also defined, but not for general use are -# LIBERIO_LIBRARY, where to find the liberio library. - -find_package(PkgConfig) -PKG_CHECK_MODULES(PC_LIBERIO QUIET liberio >= 0.3) - -find_path(LIBERIO_INCLUDE_DIR liberio/liberio.h - HINTS $ENV{LIBERIO_DIR}/include ${PC_LIBERIO_INCLUDE_DIR} - PATH_SUFFIXES liberio -) - -find_library(LIBERIO_LIBRARY - NAMES erio liberio - HINTS $ENV{LIBERIO_DIR}/lib ${PC_LIBERIO_LIBDIR} ${PC_LIBERIO_LIBRARY_DIRS} -) - -include(FindPackageHandleStandardArgs) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBERIO DEFAULT_MSG LIBERIO_LIBRARY LIBERIO_INCLUDE_DIR) -mark_as_advanced(LIBERIO_INCLUDE_DIR LIBERIO_LIBRARY) - -set(LIBERIO_LIBRARIES ${LIBERIO_LIBRARY}) -set(LIBERIO_INCLUDE_DIRS ${LIBERIO_INCLUDE_DIR}) - diff --git a/host/include/config.h.in b/host/include/config.h.in index 6557254b6..0f309d9b8 100644 --- a/host/include/config.h.in +++ b/host/include/config.h.in @@ -13,7 +13,6 @@ #define UHD_VERSION_ABI ${UHD_VERSION_ABI} #define UHD_VERSION_PATCH ${UHD_VERSION_PATCH} #cmakedefine ENABLE_USB -#cmakedefine ENABLE_LIBERIO #ifndef UHD_VERSION #cmakedefine UHD_VERSION @UHD_VERSION_ADDED@ #endif diff --git a/host/lib/CMakeLists.txt b/host/lib/CMakeLists.txt index c0b39faea..3335cfec9 100644 --- a/host/lib/CMakeLists.txt +++ b/host/lib/CMakeLists.txt @@ -60,9 +60,7 @@ endmacro(INCLUDE_SUBDIRECTORY) message(STATUS "") # Dependencies find_package(LIBUSB) -find_package(LIBERIO) find_package(DPDK 18.11 EXACT) -LIBUHD_REGISTER_COMPONENT("LIBERIO" ENABLE_LIBERIO ON "ENABLE_LIBUHD;LIBERIO_FOUND" OFF OFF) LIBUHD_REGISTER_COMPONENT("USB" ENABLE_USB ON "ENABLE_LIBUHD;LIBUSB_FOUND" OFF OFF) # Devices LIBUHD_REGISTER_COMPONENT("B100" ENABLE_B100 ON "ENABLE_LIBUHD;ENABLE_USB" OFF OFF) diff --git a/host/lib/include/uhdlib/transport/liberio_link.hpp b/host/lib/include/uhdlib/transport/liberio_link.hpp deleted file mode 100644 index e81a39393..000000000 --- a/host/lib/include/uhdlib/transport/liberio_link.hpp +++ /dev/null @@ -1,178 +0,0 @@ -// -// Copyright 2019 Ettus Research, a National Instruments brand -// -// SPDX-License-Identifier: GPL-3.0-or-later -// - -#pragma once - -#include <uhd/config.hpp> -#include <uhd/transport/buffer_pool.hpp> -#include <uhd/types/device_addr.hpp> -#include <uhdlib/transport/adapter_info.hpp> -#include <uhdlib/transport/link_base.hpp> -#include <liberio/liberio.h> -#include <cassert> -#include <string> -#include <vector> - -namespace uhd { namespace transport { - -class liberio_frame_buff : public frame_buff -{ -public: - liberio_frame_buff(struct liberio_chan* chan) : _chan(chan) - { - assert(_chan); - // Acquire channel reference - liberio_chan_get(_chan); - } - - ~liberio_frame_buff() - { - if (_buff) { - // Set payload size to signify "empty" - liberio_buf_set_payload(_buff, 0, 0); - - // Release buffer back to liberio - liberio_chan_buf_enqueue(_chan, _buff); - _buff = nullptr; - _data = nullptr; - } - // Release channel reference - liberio_chan_put(_chan); - } - - liberio_frame_buff(const liberio_frame_buff& src) : liberio_frame_buff(src._chan) {} - - UHD_FORCE_INLINE size_t get(int32_t timeout_ms) - { - // Dequeue timeout in microseconds - _buff = liberio_chan_buf_dequeue(_chan, timeout_ms * 1000); - if (!_buff) { - return 0; - } - _packet_size = liberio_buf_get_len(_buff, 0); - _data = liberio_buf_get_mem(_buff, 0); - return _packet_size; - } - - UHD_FORCE_INLINE void release() - { - assert(_buff); - liberio_buf_set_payload(_buff, 0, _packet_size); - liberio_chan_buf_enqueue(_chan, _buff); - _buff = nullptr; - _data = nullptr; - } - -private: - struct liberio_buf* _buff = nullptr; - struct liberio_chan* _chan; -}; - -class liberio_adapter_info : public adapter_info -{ -public: - liberio_adapter_info() = default; - ~liberio_adapter_info() = default; - - std::string to_string() - { - // Currently, there is only ever one liberio adapter - // If that changes, fix this! - return std::string("Liberio"); - } - - bool operator==(const liberio_adapter_info& /*rhs*/) const - { - // Currently, there is only ever one liberio adapter - // If that changes, fix this! - return true; - } -}; - -/*! - * A zero copy transport interface to the liberio DMA library. - */ -class liberio_link : public recv_link_base<liberio_link>, - public send_link_base<liberio_link> -{ -public: - using sptr = std::shared_ptr<liberio_link>; - - liberio_link(const std::string& tx_path, - const std::string& rx_path, - const link_params_t& params); - - ~liberio_link(); - - /*! - * Make a new liberio link. - * - * \param tx_path a path string to the TX DMA device - * \param rx_path a path string to the RX DMA device - * \param params Values for frame sizes, num frames, and buffer sizes - * \return a shared_ptr to a new liberio link - */ - static sptr make(const std::string& tx_path, - const std::string& rx_path, - const link_params_t& params); - - /*! - * Get the physical adapter ID used for this link - */ - adapter_id_t get_send_adapter_id() const - { - return _adapter_id; - } - - /*! - * Get the physical adapter ID used for this link - */ - adapter_id_t get_recv_adapter_id() const - { - return _adapter_id; - } - -private: - using recv_link_base_t = recv_link_base<liberio_link>; - using send_link_base_t = send_link_base<liberio_link>; - - // Friend declarations to allow base classes to call private methods - friend recv_link_base_t; - friend send_link_base_t; - - // Methods called by recv_link_base - size_t get_recv_buff_derived(frame_buff& buff, int32_t timeout_ms) - { - auto& buffer = static_cast<liberio_frame_buff&>(buff); - return buffer.get(timeout_ms); - } - - void release_recv_buff_derived(frame_buff& buff) - { - auto& buffer = static_cast<liberio_frame_buff&>(buff); - buffer.release(); - } - - bool get_send_buff_derived(frame_buff& buff, int32_t timeout_ms) - { - auto& buffer = static_cast<liberio_frame_buff&>(buff); - return buffer.get(timeout_ms); - } - - void release_send_buff_derived(frame_buff& buff) - { - auto& buffer = static_cast<liberio_frame_buff&>(buff); - buffer.release(); - } - - struct liberio_chan* _tx_chan; - struct liberio_chan* _rx_chan; - std::vector<liberio_frame_buff> _recv_buffs; - std::vector<liberio_frame_buff> _send_buffs; - adapter_id_t _adapter_id; -}; - -}} // namespace uhd::transport diff --git a/host/lib/transport/CMakeLists.txt b/host/lib/transport/CMakeLists.txt index 2b1378978..3c60414e0 100644 --- a/host/lib/transport/CMakeLists.txt +++ b/host/lib/transport/CMakeLists.txt @@ -133,13 +133,6 @@ if(ENABLE_X300) ) endif(ENABLE_X300) -if(ENABLE_LIBERIO) - include_directories(${LIBERIO_INCLUDE_DIRS}) - LIBUHD_APPEND_LIBS(${LIBERIO_LIBRARIES}) - LIBUHD_APPEND_SOURCES( - ${CMAKE_CURRENT_SOURCE_DIR}/liberio_link.cpp - ) -endif(ENABLE_LIBERIO) if(ENABLE_DPDK) INCLUDE_SUBDIRECTORY(uhd-dpdk) diff --git a/host/lib/transport/liberio_link.cpp b/host/lib/transport/liberio_link.cpp deleted file mode 100644 index ec8abbca8..000000000 --- a/host/lib/transport/liberio_link.cpp +++ /dev/null @@ -1,154 +0,0 @@ -// -// Copyright 2019 Ettus Research, a National Instruments brand -// -// SPDX-License-Identifier: GPL-3.0-or-later -// - -#include <uhd/config.hpp> -#include <uhd/utils/log.hpp> -#include <uhd/utils/static.hpp> -#include <uhdlib/transport/adapter.hpp> -#include <uhdlib/transport/liberio_link.hpp> -#include <sys/syslog.h> -#include <memory> - -namespace uhd { namespace transport { - -using liberio_ctx_sptr = std::shared_ptr<liberio_ctx>; - -static const uint64_t USEC = 1000000; - -static void liberio_log_cb(int severity, const char* msg, void*) -{ - switch (severity) { - case LOG_WARNING: - UHD_LOG_WARNING("LIBERIO", msg); - return; - case LOG_NOTICE: - case LOG_INFO: - UHD_LOG_INFO("LIBERIO", msg); - return; - default: - UHD_LOG_INFO("LIBERIO", msg); - }; -} - -class liberio_context_holder -{ -public: - UHD_SINGLETON_FCN(liberio_context_holder, get); - - inline struct liberio_chan* alloc_tx_chan(const std::string& path) - { - return liberio_ctx_alloc_chan(_ctx, path.c_str(), TX, USRP_MEMORY_MMAP); - } - - inline struct liberio_chan* alloc_rx_chan(const std::string& path) - { - return liberio_ctx_alloc_chan(_ctx, path.c_str(), RX, USRP_MEMORY_MMAP); - } - -private: - liberio_context_holder(void) - { - _ctx = liberio_ctx_new(); - liberio_ctx_register_logger(_ctx, &liberio_log_cb, nullptr); - } - - ~liberio_context_holder(void) - { - liberio_ctx_put(_ctx); - } - - liberio_ctx* _ctx; -}; - -liberio_link::liberio_link( - const std::string& tx_path, const std::string& rx_path, const link_params_t& params) - : recv_link_base_t(params.num_recv_frames, params.recv_frame_size) - , send_link_base_t(params.num_send_frames, params.send_frame_size) -{ - auto& ctx_holder = liberio_context_holder::get(); - - /* Allocate TX channel (begins with refcount of 1) - */ - _tx_chan = ctx_holder.alloc_tx_chan(tx_path); - UHD_ASSERT_THROW(_tx_chan); - - /* set the size, allocate */ - UHD_ASSERT_THROW(!liberio_chan_set_fixed_size(_tx_chan, 0, params.send_frame_size)); - UHD_ASSERT_THROW(!liberio_chan_request_buffers(_tx_chan, params.num_send_frames)); - - /* TODO: Check params in factory and adjust them there instead of throwing exception - * here? */ - UHD_ASSERT_THROW(params.num_send_frames == liberio_chan_get_num_bufs(_tx_chan)); - for (size_t i = 0; i < params.num_send_frames; i++) { - _send_buffs.push_back(liberio_frame_buff(_tx_chan)); - } - - /* Allocate RX channel (begins with refcount of 1) - */ - _rx_chan = ctx_holder.alloc_rx_chan(rx_path); - UHD_ASSERT_THROW(_rx_chan); - - /* set the size, allocate */ - UHD_ASSERT_THROW(!liberio_chan_set_fixed_size(_rx_chan, 0, params.recv_frame_size)); - UHD_ASSERT_THROW(!liberio_chan_request_buffers(_rx_chan, params.num_recv_frames)); - /* TODO: Check params in factory and adjust them there instead of throwing exception - * here? */ - UHD_ASSERT_THROW(params.num_recv_frames == liberio_chan_get_num_bufs(_rx_chan)); - - for (size_t i = 0; i < params.num_recv_frames; i++) { - _recv_buffs.push_back(liberio_frame_buff(_rx_chan)); - } - UHD_ASSERT_THROW(!liberio_chan_enqueue_all(_rx_chan)); - - /* Start streaming on the devices */ - liberio_chan_start_streaming(_rx_chan); - liberio_chan_start_streaming(_tx_chan); - - /* Finally, preload the buffer pools in parent class */ - for (auto& buff : _send_buffs) { - send_link_base_t::preload_free_buff(&buff); - } - for (auto& buff : _recv_buffs) { - recv_link_base_t::preload_free_buff(&buff); - } - - auto info = liberio_adapter_info(); - auto& adap_ctx = adapter_ctx::get(); - _adapter_id = adap_ctx.register_adapter(info); - - UHD_LOGGER_TRACE("LIBERIO") - << boost::format("Created liberio link (tx:%s, rx:%s)") % tx_path % rx_path; - UHD_LOGGER_TRACE("LIBERIO") - << boost::format("num_recv_frames=%d, recv_frame_size=%d, num_send_frames=%d, " - "send_frame_size=%d") - % params.num_recv_frames % params.recv_frame_size % params.num_send_frames - % params.send_frame_size; -} - -liberio_link::~liberio_link() -{ - /* stop the channel, free the buffers */ - liberio_chan_stop_streaming(_tx_chan); - liberio_chan_request_buffers(_tx_chan, 0); - liberio_chan_put(_tx_chan); - - liberio_chan_stop_streaming(_rx_chan); - liberio_chan_request_buffers(_rx_chan, 0); - liberio_chan_put(_rx_chan); -} - -liberio_link::sptr liberio_link::make( - const std::string& tx_path, const std::string& rx_path, const link_params_t& params) -{ - UHD_ASSERT_THROW(params.recv_frame_size > 0); - UHD_ASSERT_THROW(params.send_frame_size > 0); - UHD_ASSERT_THROW(params.num_send_frames > 0); - UHD_ASSERT_THROW(params.num_recv_frames > 0); - - return std::make_shared<liberio_link>(tx_path, rx_path, params); -} - -}} // namespace uhd::transport diff --git a/host/lib/usrp/mpmd/mpmd_link_if_mgr.hpp b/host/lib/usrp/mpmd/mpmd_link_if_mgr.hpp index 4bf893dd4..8f364c10f 100644 --- a/host/lib/usrp/mpmd/mpmd_link_if_mgr.hpp +++ b/host/lib/usrp/mpmd/mpmd_link_if_mgr.hpp @@ -75,7 +75,7 @@ public: * from mb_args in the \p xport_info. If yes, it will use that for * connections. * - * \param xport_type The type of xport ("udp", "liberio", ...) + * \param xport_type The type of xport ("udp") * \param xport_info The available information on this transport. For * example, if the xport_type is "udp", then this would * contain the available IP addresses. diff --git a/mpm/python/usrp_mpm/CMakeLists.txt b/mpm/python/usrp_mpm/CMakeLists.txt index e4332a617..9ea114e0b 100644 --- a/mpm/python/usrp_mpm/CMakeLists.txt +++ b/mpm/python/usrp_mpm/CMakeLists.txt @@ -18,7 +18,6 @@ set(USRP_MPM_TOP_FILES ${CMAKE_CURRENT_SOURCE_DIR}/e31x_legacy_eeprom.py ${CMAKE_CURRENT_SOURCE_DIR}/ethdispatch.py ${CMAKE_CURRENT_SOURCE_DIR}/gpsd_iface.py - ${CMAKE_CURRENT_SOURCE_DIR}/liberiotable.py ${CMAKE_CURRENT_SOURCE_DIR}/mpmlog.py ${CMAKE_CURRENT_SOURCE_DIR}/mpmtypes.py ${CMAKE_CURRENT_SOURCE_DIR}/mpmutils.py diff --git a/mpm/python/usrp_mpm/liberiotable.py b/mpm/python/usrp_mpm/liberiotable.py deleted file mode 100644 index d732eedcb..000000000 --- a/mpm/python/usrp_mpm/liberiotable.py +++ /dev/null @@ -1,60 +0,0 @@ -# -# Copyright 2017 Ettus Research, a National Instruments Company -# -# SPDX-License-Identifier: GPL-3.0-or-later -# -""" -Liberio DMA dispatcher table control -""" - -from builtins import str -from builtins import object -from usrp_mpm.mpmlog import get_logger -from usrp_mpm.sys_utils.uio import UIO - -class LiberioDispatcherTable(object): - """ - Controls a Liberio DMA dispatcher table. - - label -- A label that can be used by udev to find a UIO device - """ - - def __init__(self, label): - self.log = get_logger(label) - self._regs = UIO(label=label, read_only=False) - self.poke32 = self._regs.poke32 - self.peek32 = self._regs.peek32 - - def set_route(self, sid, dma_channel): - """ - Sets up routing in the Liberio dispatcher. From sid, only the - destination part is important. After this call, any CHDR packet with the - appropriate destination address will get routed to `dma_channel`. - - sid -- Full SID, but only destination part matters. - dma_channel -- The DMA channel to which these packets should get routed. - """ - self.log.debug( - "Routing SID `{sid}' to DMA channel `{chan}'.".format( - sid=str(sid), chan=dma_channel - ) - ) - def poke_and_trace(addr, data): - " Do a poke32() and log.trace() " - self.log.trace("Writing to address 0x{:04X}: 0x{:04X}".format( - addr, data - )) - self.poke32(addr, data) - # Poke reg for destination channel - try: - with self._regs: - poke_and_trace( - 0 + 4 * sid.dst_ep, - dma_channel, - ) - except Exception as ex: - self.log.error( - "Unexpected exception while setting route: %s", - str(ex), - ) - raise diff --git a/mpm/python/usrp_mpm/periph_manager/base.py b/mpm/python/usrp_mpm/periph_manager/base.py index c13fb58bc..09f66a2d4 100644 --- a/mpm/python/usrp_mpm/periph_manager/base.py +++ b/mpm/python/usrp_mpm/periph_manager/base.py @@ -845,11 +845,9 @@ class PeriphManagerBase(object): The return value is a list of strings. Every string is a key for a transport type. Values include: - "udp": Means this device can be reached via UDP - - "liberio": Means this device can be reached via Liberio (local DMA) The list is filtered based on what the device knows about where the UHD - session is. For example, on an N310, it will only either return "UDP" - or "Liberio", depending on if we're remotely launching UHD, or locally. + session is. For example, on an N310, it will only return "UDP". In order to get further information about how to connect to the device, the keys returned from this function can be used with @@ -870,9 +868,6 @@ class PeriphManagerBase(object): - port (UDP port) - link_rate (bps of the link, e.g. 10e9 for 10GigE) - For Liberio, every entry has the following keys: - - tx_dev: TX device (/dev/tx-dma*) - - rx_dev: RX device (/dev/rx-dma*) """ raise NotImplementedError("get_chdr_link_options() not implemented.") diff --git a/mpm/python/usrp_mpm/periph_manager/e320.py b/mpm/python/usrp_mpm/periph_manager/e320.py index 2f34a8ce1..dc91b20d9 100644 --- a/mpm/python/usrp_mpm/periph_manager/e320.py +++ b/mpm/python/usrp_mpm/periph_manager/e320.py @@ -394,9 +394,6 @@ class e320(ZynqComponents, PeriphManagerBase): - port (UDP port) - link_rate (bps of the link, e.g. 10e9 for 10GigE) - For Liberio, every entry has the following keys: - - tx_dev: TX device (/dev/tx-dma*) - - rx_dev: RX device (/dev/rx-dma*) """ if xport_type not in self._xport_mgrs: self.log.warning("Can't get link options for unknown link type: `{}'." diff --git a/mpm/python/usrp_mpm/xports/CMakeLists.txt b/mpm/python/usrp_mpm/xports/CMakeLists.txt index e89fcec9b..bd5ddcf36 100644 --- a/mpm/python/usrp_mpm/xports/CMakeLists.txt +++ b/mpm/python/usrp_mpm/xports/CMakeLists.txt @@ -8,7 +8,6 @@ set(USRP_MPM_FILES ${USRP_MPM_FILES}) set(USRP_MPM_XPORT_FILES ${CMAKE_CURRENT_SOURCE_DIR}/__init__.py ${CMAKE_CURRENT_SOURCE_DIR}/xportmgr_udp.py - ${CMAKE_CURRENT_SOURCE_DIR}/xportmgr_liberio.py ) list(APPEND USRP_MPM_FILES ${USRP_MPM_XPORT_FILES}) set(USRP_MPM_FILES ${USRP_MPM_FILES} PARENT_SCOPE) diff --git a/mpm/python/usrp_mpm/xports/__init__.py b/mpm/python/usrp_mpm/xports/__init__.py index e3e2bc89b..e96208361 100644 --- a/mpm/python/usrp_mpm/xports/__init__.py +++ b/mpm/python/usrp_mpm/xports/__init__.py @@ -8,4 +8,3 @@ Transport managers """ from .xportmgr_udp import XportMgrUDP -from .xportmgr_liberio import XportMgrLiberio diff --git a/mpm/python/usrp_mpm/xports/xportmgr_liberio.py b/mpm/python/usrp_mpm/xports/xportmgr_liberio.py deleted file mode 100644 index 1b4f87fbf..000000000 --- a/mpm/python/usrp_mpm/xports/xportmgr_liberio.py +++ /dev/null @@ -1,74 +0,0 @@ -# -# Copyright 2017 Ettus Research, a National Instruments Company -# -# SPDX-License-Identifier: GPL-3.0-or-later -# -""" -Liberio Transport manager -""" - -from builtins import object -import pyudev - -class XportMgrLiberio(object): - """ - Transport manager for Liberio connections - """ - # udev label for the UIO device that controls the DMA engine - liberio_label = 'liberio' - # Number of available DMA channels - max_chan = 4 - - def __init__(self, log, max_chan=-1): - self.log = log.getChild('Liberio') - if max_chan < 0: - context = pyudev.Context() - rx_of_nodes = list(context.list_devices(subsystem="platform", - OF_COMPATIBLE_0="ettus,usrp-rx-dma")) - tx_of_nodes = list(context.list_devices(subsystem="platform", - OF_COMPATIBLE_0="ettus,usrp-tx-dma")) - self.max_chan = min(len(rx_of_nodes), len(tx_of_nodes)) - self.log.debug("Found {} channels".format(self.max_chan)) - else: - self.max_chan = max_chan - self.log.debug("Reporting {} channels".format(self.max_chan)) - - def init(self, args): - """ - Call this when the user calls 'init' on the periph manager - """ - pass - - def deinit(self): - " Clean up after a session terminates " - pass - - def get_xport_info(self): - """ - Returns a dictionary of useful information, e.g. for appending into the - device info. - - Note: This can be run by callers not owning a claim, even when the - device has been claimed by someone else. - - In this case, returns an empty dict. - """ - assert hasattr(self, 'log') - return {} - - def get_chdr_link_options(self): - """ - Returns a list of dictionaries for returning by - PeriphManagerBase.get_chdr_link_options(). - - Note: This requires a claim, which means that init() was called, and - deinit() was not yet called. - """ - return [ - { - 'tx_dev': "/dev/tx-dma{}".format(chan), - 'rx_dev': "/dev/rx-dma{}".format(chan), - 'dma_chan': str(chan), - } - for chan in range(self.max_chan) - ] |