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-rw-r--r--host/lib/usrp/usrp2/mboard_impl.cpp3
-rw-r--r--host/lib/usrp/usrp2/usrp2_iface.cpp97
-rw-r--r--host/lib/usrp/usrp2/usrp2_iface.hpp6
-rw-r--r--host/lib/usrp/usrp2/usrp2_impl.cpp8
-rw-r--r--host/lib/usrp/usrp2/usrp2_regs.cpp2
-rw-r--r--host/lib/usrp/usrp2/usrp2_regs.hpp2
6 files changed, 82 insertions, 36 deletions
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp
index ae098dba6..7705037dd 100644
--- a/host/lib/usrp/usrp2/mboard_impl.cpp
+++ b/host/lib/usrp/usrp2/mboard_impl.cpp
@@ -80,6 +80,9 @@ usrp2_mboard_impl::usrp2_mboard_impl(
) % int(USRP2_FPGA_COMPAT_NUM) % fpga_compat_num));
}
+ //lock the device/motherboard to this process
+ _iface->lock_device(true);
+
//construct transports for dsp and async errors
std::cout << "Making transport for DSP0..." << std::endl;
device.dsp_xports.push_back(udp_zero_copy::make(
diff --git a/host/lib/usrp/usrp2/usrp2_iface.cpp b/host/lib/usrp/usrp2/usrp2_iface.cpp
index 87a878b10..4bcc61444 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.cpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.cpp
@@ -26,7 +26,10 @@
#include <boost/assign/list_of.hpp>
#include <boost/format.hpp>
#include <boost/tokenizer.hpp>
+#include <boost/thread/thread.hpp>
+#include <boost/thread/barrier.hpp>
#include <algorithm>
+#include <iostream>
using namespace uhd;
using namespace uhd::usrp;
@@ -41,6 +44,9 @@ static const boost::uint32_t MIN_PROTO_COMPAT_I2C = 7;
static const boost::uint32_t MIN_PROTO_COMPAT_REG = USRP2_FW_COMPAT_NUM;
static const boost::uint32_t MIN_PROTO_COMPAT_UART = 7;
+// Map for virtual firmware regs (not very big so we can keep it here for now)
+#define U2_FW_REG_LOCK_TIME 0
+
class usrp2_iface_impl : public usrp2_iface{
public:
/***********************************************************************
@@ -62,21 +68,50 @@ public:
_protocol_compat = ntohl(ctrl_data.proto_ver);
mb_eeprom = mboard_eeprom_t(*this, mboard_eeprom_t::MAP_N100);
- switch(this->get_rev()){
- case USRP2_REV3:
- case USRP2_REV4:
- regs = usrp2_get_regs(false);
- break;
-
- case USRP_N200:
- case USRP_N210:
- regs = usrp2_get_regs(true);
- break;
-
- case USRP_NXXX: //fallthough case is old register map (USRP2)
- regs = usrp2_get_regs(false);
- break;
+ regs = usrp2_get_regs(); //reg map identical across all boards
+ }
+
+ ~usrp2_iface_impl(void){
+ this->lock_device(false);
+ }
+
+/***********************************************************************
+ * Device locking
+ **********************************************************************/
+
+ void lock_device(bool lock){
+ if (lock){
+ boost::barrier spawn_barrier(2);
+ _lock_thread_group.create_thread(boost::bind(&usrp2_iface_impl::lock_loop, this, boost::ref(spawn_barrier)));
+ spawn_barrier.wait();
}
+ else{
+ _lock_thread_group.interrupt_all();
+ _lock_thread_group.join_all();
+ }
+ }
+
+ bool is_device_locked(void){
+ boost::uint32_t lock_secs = this->get_reg<boost::uint32_t, USRP2_REG_ACTION_FW_PEEK32>(U2_FW_REG_LOCK_TIME);
+ boost::uint32_t curr_secs = this->peek32(this->regs.time64_secs_rb_imm);
+ return (curr_secs - lock_secs < 3); //if the difference is larger, assume not locked anymore
+ }
+
+ void lock_loop(boost::barrier &spawn_barrier){
+ spawn_barrier.wait();
+
+ try{
+ while(true){
+ //re-lock in loop
+ boost::uint32_t curr_secs = this->peek32(this->regs.time64_secs_rb_imm);
+ this->get_reg<boost::uint32_t, USRP2_REG_ACTION_FW_POKE32>(U2_FW_REG_LOCK_TIME, curr_secs);
+ //sleep for a bit
+ boost::this_thread::sleep(boost::posix_time::milliseconds(1500));
+ }
+ } catch(const boost::thread_interrupted &){}
+
+ //unlock on exit
+ this->get_reg<boost::uint32_t, USRP2_REG_ACTION_FW_POKE32>(U2_FW_REG_LOCK_TIME, 0);
}
/***********************************************************************
@@ -98,6 +133,21 @@ public:
return this->get_reg<boost::uint16_t, USRP2_REG_ACTION_FPGA_PEEK16>(addr);
}
+ template <class T, usrp2_reg_action_t action>
+ T get_reg(boost::uint32_t addr, T data = 0){
+ //setup the out data
+ usrp2_ctrl_data_t out_data;
+ out_data.id = htonl(USRP2_CTRL_ID_GET_THIS_REGISTER_FOR_ME_BRO);
+ out_data.data.reg_args.addr = htonl(addr);
+ out_data.data.reg_args.data = htonl(boost::uint32_t(data));
+ out_data.data.reg_args.action = action;
+
+ //send and recv
+ usrp2_ctrl_data_t in_data = this->ctrl_send_and_recv(out_data, MIN_PROTO_COMPAT_REG);
+ UHD_ASSERT_THROW(ntohl(in_data.id) == USRP2_CTRL_ID_OMG_GOT_REGISTER_SO_BAD_DUDE);
+ return T(ntohl(in_data.data.reg_args.data));
+ }
+
/***********************************************************************
* SPI
**********************************************************************/
@@ -302,23 +352,8 @@ private:
boost::uint32_t _ctrl_seq_num;
boost::uint32_t _protocol_compat;
-/***********************************************************************
- * Private Templated Peek and Poke
- **********************************************************************/
- template <class T, usrp2_reg_action_t action>
- T get_reg(boost::uint32_t addr, T data = 0){
- //setup the out data
- usrp2_ctrl_data_t out_data;
- out_data.id = htonl(USRP2_CTRL_ID_GET_THIS_REGISTER_FOR_ME_BRO);
- out_data.data.reg_args.addr = htonl(addr);
- out_data.data.reg_args.data = htonl(boost::uint32_t(data));
- out_data.data.reg_args.action = action;
-
- //send and recv
- usrp2_ctrl_data_t in_data = this->ctrl_send_and_recv(out_data, MIN_PROTO_COMPAT_REG);
- UHD_ASSERT_THROW(ntohl(in_data.id) == USRP2_CTRL_ID_OMG_GOT_REGISTER_SO_BAD_DUDE);
- return T(ntohl(in_data.data.reg_args.data));
- }
+ //lock thread stuff
+ boost::thread_group _lock_thread_group;
};
/***********************************************************************
diff --git a/host/lib/usrp/usrp2/usrp2_iface.hpp b/host/lib/usrp/usrp2/usrp2_iface.hpp
index 08f3955f1..e4d1a166b 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.hpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.hpp
@@ -66,6 +66,12 @@ public:
//! Get the canonical name for this device
virtual const std::string get_cname(void) = 0;
+ //! Lock the device to this iface
+ virtual void lock_device(bool lock) = 0;
+
+ //! Is this device locked?
+ virtual bool is_device_locked(void) = 0;
+
/*!
* Register map selected from USRP2/USRP2+.
*/
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
index 48443bba4..2d1f901d7 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
@@ -115,9 +115,11 @@ static device_addrs_t usrp2_find(const device_addr_t &hint_){
//Attempt to read the name from the EEPROM and perform filtering.
//This operation can throw due to compatibility mismatch.
try{
- mboard_eeprom_t mb_eeprom = usrp2_iface::make(udp_simple::make_connected(
- new_addr["addr"], boost::lexical_cast<std::string>(USRP2_UDP_CTRL_PORT)
- ))->mb_eeprom;
+ usrp2_iface::sptr iface = usrp2_iface::make(udp_simple::make_connected(
+ new_addr["addr"], BOOST_STRINGIZE(USRP2_UDP_CTRL_PORT)
+ ));
+ if (iface->is_device_locked()) continue; //ignore locked devices
+ mboard_eeprom_t mb_eeprom = iface->mb_eeprom;
new_addr["name"] = mb_eeprom["name"];
new_addr["serial"] = mb_eeprom["serial"];
}
diff --git a/host/lib/usrp/usrp2/usrp2_regs.cpp b/host/lib/usrp/usrp2/usrp2_regs.cpp
index 57ae36857..240bc3bab 100644
--- a/host/lib/usrp/usrp2/usrp2_regs.cpp
+++ b/host/lib/usrp/usrp2/usrp2_regs.cpp
@@ -56,7 +56,7 @@ int sr_addr(int sr) {
return SETTING_REGS_BASE + (4 * sr);
}
-usrp2_regs_t usrp2_get_regs(bool) {
+usrp2_regs_t usrp2_get_regs(void) {
usrp2_regs_t x;
x.misc_ctrl_clock = sr_addr(0);
x.misc_ctrl_serdes = sr_addr(1);
diff --git a/host/lib/usrp/usrp2/usrp2_regs.hpp b/host/lib/usrp/usrp2/usrp2_regs.hpp
index b50f8b506..8390f065d 100644
--- a/host/lib/usrp/usrp2/usrp2_regs.hpp
+++ b/host/lib/usrp/usrp2/usrp2_regs.hpp
@@ -88,7 +88,7 @@ typedef struct {
extern const usrp2_regs_t usrp2_regs; //the register definitions, set in usrp2_regs.cpp and usrp2p_regs.cpp
-usrp2_regs_t usrp2_get_regs(bool);
+usrp2_regs_t usrp2_get_regs(void);
////////////////////////////////////////////////////
// Settings Bus, Slave #7, Not Byte Addressable!
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 09:33:30 +0000