aboutsummaryrefslogtreecommitdiffstats
path: root/host/lib/usrp/b100/b100_ctrl.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'host/lib/usrp/b100/b100_ctrl.cpp')
-rw-r--r--host/lib/usrp/b100/b100_ctrl.cpp257
1 files changed, 0 insertions, 257 deletions
diff --git a/host/lib/usrp/b100/b100_ctrl.cpp b/host/lib/usrp/b100/b100_ctrl.cpp
deleted file mode 100644
index e6136c00e..000000000
--- a/host/lib/usrp/b100/b100_ctrl.cpp
+++ /dev/null
@@ -1,257 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-#include "b100_ctrl.hpp"
-#include <uhd/transport/bounded_buffer.hpp>
-#include <uhd/transport/usb_zero_copy.hpp>
-#include <uhd/transport/zero_copy.hpp>
-#include <uhd/transport/vrt_if_packet.hpp>
-#include <uhd/utils/thread_priority.hpp>
-#include <uhd/utils/msg.hpp>
-#include <uhd/utils/tasks.hpp>
-#include <uhd/types/metadata.hpp>
-#include <uhd/types/serial.hpp>
-#include "ctrl_packet.hpp"
-#include <boost/thread/thread.hpp>
-#include <boost/bind.hpp>
-#include <uhd/exception.hpp>
-
-using namespace uhd::transport;
-using namespace uhd;
-
-bool b100_ctrl_debug = false;
-
-class b100_ctrl_impl : public b100_ctrl {
-public:
- b100_ctrl_impl(uhd::transport::zero_copy_if::sptr ctrl_transport):
- sync_ctrl_fifo(2),
- _ctrl_transport(ctrl_transport),
- _seq(0)
- {
- viking_marauder = task::make(boost::bind(&b100_ctrl_impl::viking_marauder_loop, this));
- }
-
- ~b100_ctrl_impl(void){
- //stop the marauder first so it cant access deconstructed objects
- viking_marauder.reset();
- }
-
- int write(boost::uint32_t addr, const ctrl_data_t &data);
- ctrl_data_t read(boost::uint32_t addr, size_t len);
-
- bool get_ctrl_data(ctrl_data_t &pkt_data, double timeout);
-
- void poke32(wb_addr_type addr, boost::uint32_t data){
- boost::mutex::scoped_lock lock(_ctrl_mutex);
-
- ctrl_data_t words(2);
- words[0] = data & 0x0000FFFF;
- words[1] = data >> 16;
- this->write(addr, words);
- }
-
- boost::uint32_t peek32(wb_addr_type addr){
- boost::mutex::scoped_lock lock(_ctrl_mutex);
-
- ctrl_data_t words = this->read(addr, 2);
- return boost::uint32_t((boost::uint32_t(words[1]) << 16) | words[0]);
- }
-
- void poke16(wb_addr_type addr, boost::uint16_t data){
- boost::mutex::scoped_lock lock(_ctrl_mutex);
-
- ctrl_data_t words(1);
- words[0] = data;
- this->write(addr, words);
- }
-
- boost::uint16_t peek16(wb_addr_type addr){
- boost::mutex::scoped_lock lock(_ctrl_mutex);
-
- ctrl_data_t words = this->read(addr, 1);
- return boost::uint16_t(words[0]);
- }
-
- void set_async_cb(const async_cb_type &async_cb){
- boost::mutex::scoped_lock lock(_async_mutex);
- _async_cb = async_cb;
- }
-
-private:
- int send_pkt(boost::uint16_t *cmd);
-
- //änd hërë wë gö ä-Vïkïng för äsynchronous control packets
- void viking_marauder_loop(void);
- bounded_buffer<ctrl_data_t> sync_ctrl_fifo;
- async_cb_type _async_cb;
- task::sptr viking_marauder;
-
- uhd::transport::zero_copy_if::sptr _ctrl_transport;
- boost::uint8_t _seq;
- boost::mutex _ctrl_mutex, _async_mutex;
-};
-
-/***********************************************************************
- * helper functions for packing/unpacking control packets
- **********************************************************************/
-void pack_ctrl_pkt(boost::uint16_t *pkt_buff,
- const ctrl_pkt_t &pkt){
- //first two bits are OP
- //next six bits are CALLBACKS
- //next 8 bits are SEQUENCE
- //next 16 bits are LENGTH (16-bit word)
- //next 32 bits are ADDRESS (16-bit word LSW)
- //then DATA (28 16-bit words)
- pkt_buff[0] = (boost::uint16_t(pkt.pkt_meta.op) << 14) | (boost::uint16_t(pkt.pkt_meta.callbacks) << 8) | pkt.pkt_meta.seq;
- pkt_buff[1] = pkt.pkt_meta.len;
- pkt_buff[2] = (pkt.pkt_meta.addr & 0x00000FFF);
- pkt_buff[3] = 0x0000; //address high bits always 0 on this device
-
- for(size_t i = 0; i < pkt.data.size(); i++) {
- pkt_buff[4+i] = pkt.data[i];
- }
-}
-
-void unpack_ctrl_pkt(const boost::uint16_t *pkt_buff,
- ctrl_pkt_t &pkt){
- pkt.pkt_meta.seq = pkt_buff[0] & 0xFF;
- pkt.pkt_meta.op = CTRL_PKT_OP_READ; //really this is useless
- pkt.pkt_meta.len = pkt_buff[1];
- pkt.pkt_meta.callbacks = 0; //callbacks aren't implemented yet
- pkt.pkt_meta.addr = pkt_buff[2] | boost::uint32_t(pkt_buff[3] << 16);
-
- //let's check this so we don't go pushing 64K of crap onto the pkt
- if(pkt.pkt_meta.len > CTRL_PACKET_DATA_LENGTH) {
- throw uhd::runtime_error("Received control packet too long");
- }
-
- for(int i = 4; i < 4+pkt.pkt_meta.len; i++) pkt.data.push_back(pkt_buff[i]);
-}
-
-int b100_ctrl_impl::send_pkt(boost::uint16_t *cmd) {
- managed_send_buffer::sptr sbuf = _ctrl_transport->get_send_buff();
- if(!sbuf.get()) {
- throw uhd::runtime_error("Control channel send error");
- }
-
- //FIXME there's a better way to do this
- for(size_t i = 0; i < (CTRL_PACKET_LENGTH / sizeof(boost::uint16_t)); i++) {
- sbuf->cast<boost::uint16_t *>()[i] = cmd[i];
- }
- sbuf->commit(CTRL_PACKET_LENGTH); //fixed size transaction
- return 0;
-}
-
-int b100_ctrl_impl::write(boost::uint32_t addr, const ctrl_data_t &data) {
- UHD_ASSERT_THROW(data.size() <= (CTRL_PACKET_DATA_LENGTH / sizeof(boost::uint16_t)));
- ctrl_pkt_t pkt;
- pkt.data = data;
- pkt.pkt_meta.op = CTRL_PKT_OP_WRITE;
- pkt.pkt_meta.callbacks = 0;
- pkt.pkt_meta.seq = _seq++;
- pkt.pkt_meta.len = pkt.data.size();
- pkt.pkt_meta.addr = addr;
- boost::uint16_t pkt_buff[CTRL_PACKET_LENGTH / sizeof(boost::uint16_t)] = {};
-
- pack_ctrl_pkt(pkt_buff, pkt);
- size_t result = send_pkt(pkt_buff);
- return result;
-}
-
-ctrl_data_t b100_ctrl_impl::read(boost::uint32_t addr, size_t len) {
- UHD_ASSERT_THROW(len <= (CTRL_PACKET_DATA_LENGTH / sizeof(boost::uint16_t)));
-
- ctrl_pkt_t pkt;
- pkt.pkt_meta.op = CTRL_PKT_OP_READ;
- pkt.pkt_meta.callbacks = 0;
- pkt.pkt_meta.seq = _seq++;
- pkt.pkt_meta.len = len;
- pkt.pkt_meta.addr = addr;
- boost::uint16_t pkt_buff[CTRL_PACKET_LENGTH / sizeof(boost::uint16_t)] = {};
-
- //flush anything that might be in the queue
- while (get_ctrl_data(pkt.data, 0.0)){
- UHD_MSG(error) << "B100: control read found unexpected packet." << std::endl;
- }
-
- pack_ctrl_pkt(pkt_buff, pkt);
- send_pkt(pkt_buff);
-
- //block with timeout waiting for the response to appear
- if (not get_ctrl_data(pkt.data, 0.1)) throw uhd::runtime_error(
- "B100: timeout waiting for control response packet."
- );
-
- return pkt.data;
-}
-
-/***********************************************************************
- * Viking marauders go pillaging for asynchronous control packets in the
- * control response endpoint. Sync packets go in sync_ctrl_fifo,
- * async TX error messages go in async_msg_fifo. sync_ctrl_fifo should
- * never have more than 1 message in it, since it's expected that we'll
- * wait for a control operation to finish before starting another one.
- **********************************************************************/
-void b100_ctrl_impl::viking_marauder_loop(void){
- set_thread_priority_safe();
-
- while (not boost::this_thread::interruption_requested()){
- managed_recv_buffer::sptr rbuf = _ctrl_transport->get_recv_buff(1.0);
- if(rbuf.get() == NULL) continue; //that's ok, there are plenty of villages to pillage!
- const boost::uint16_t *pkt_buf = rbuf->cast<const boost::uint16_t *>();
-
- if(pkt_buf[0] >> 8 == CTRL_PACKET_HEADER_MAGIC) {
- //so it's got a control packet header, let's parse it.
- ctrl_pkt_t pkt;
- unpack_ctrl_pkt(pkt_buf, pkt);
-
- if(pkt.pkt_meta.seq != boost::uint8_t(_seq - 1)) {
- UHD_MSG(error)
- << "Sequence error on control channel." << std::endl
- << "Exiting control loop." << std::endl
- ;
- return;
- }
- if(pkt.pkt_meta.len > (CTRL_PACKET_LENGTH - CTRL_PACKET_HEADER_LENGTH)) {
- UHD_MSG(error)
- << "Control channel packet length too long" << std::endl
- << "Exiting control loop." << std::endl
- ;
- return;
- }
-
- //push it onto the queue
- sync_ctrl_fifo.push_with_pop_on_full(pkt.data);
- }
- else{ //otherwise let the async callback handle it
- boost::mutex::scoped_lock lock(_async_mutex);
- if (not _async_cb.empty()) _async_cb(rbuf);
- }
- }
-}
-
-bool b100_ctrl_impl::get_ctrl_data(ctrl_data_t &pkt_data, double timeout){
- boost::this_thread::disable_interruption di; //disable because the wait can throw
- return sync_ctrl_fifo.pop_with_timed_wait(pkt_data, timeout);
-}
-
-/***********************************************************************
- * Public make function for b100_ctrl interface
- **********************************************************************/
-b100_ctrl::sptr b100_ctrl::make(uhd::transport::zero_copy_if::sptr ctrl_transport){
- return sptr(new b100_ctrl_impl(ctrl_transport));
-}