b100: some tweaks (unresolved streaming issues ATM)

4 files changed, 26 insertions, 16 deletions

diff --git a/host/lib/usrp/b100/b100_ctrl.cpp b/host/lib/usrp/b100/b100_ctrl.cpp
index be576cc99..22512f413 100644
--- a/host/lib/usrp/b100/b100_ctrl.cpp
+++ b/host/lib/usrp/b100/b100_ctrl.cpp
@@ -178,11 +178,18 @@ ctrl_data_t b100_ctrl_impl::read(boost::uint32_t addr, size_t 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);
 
-    //loop around waiting for the response to appear
-    while(!get_ctrl_data(pkt.data, 0.05));
+    //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;
 }
diff --git a/host/lib/usrp/b100/b100_impl.cpp b/host/lib/usrp/b100/b100_impl.cpp
index 14ccbbf9b..2c90bc873 100644
--- a/host/lib/usrp/b100/b100_impl.cpp
+++ b/host/lib/usrp/b100/b100_impl.cpp
@@ -166,9 +166,6 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
     _clock_ctrl = b100_clock_ctrl::make(_fx2_ctrl, device_addr.cast<double>("master_clock_rate", B100_DEFAULT_TICK_RATE));
     _fx2_ctrl->usrp_load_fpga(b100_fpga_image);
 
-    //prepare GPIF before anything else is used
-    this->prepare_gpif();
-
     device_addr_t data_xport_args;
     data_xport_args["recv_frame_size"] = device_addr.get("recv_frame_size", "16384");
     data_xport_args["num_recv_frames"] = device_addr.get("num_recv_frames", "16");
@@ -205,6 +202,9 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
     this->check_fpga_compat(); //check after making control
     _fpga_i2c_ctrl = i2c_core_100::make(_fpga_ctrl, B100_REG_SLAVE(3));
     _fpga_spi_ctrl = spi_core_100::make(_fpga_ctrl, B100_REG_SLAVE(2));
+    //init GPIF stuff TODO: best place to put this
+    this->enable_gpif(true);
+    this->reset_gpif(6);
 
     ////////////////////////////////////////////////////////////////////
     // Initialize the properties tree
@@ -213,6 +213,8 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
     _tree->create<std::string>("/name").set("B-Series Device");
     const property_tree::path_type mb_path = "/mboards/0";
     _tree->create<std::string>(mb_path / "name").set("B100 (B-Hundo)");
+    _tree->create<std::string>(mb_path / "load_eeprom")
+        .subscribe(boost::bind(&fx2_ctrl::usrp_load_eeprom, _fx2_ctrl, _1));
 
     ////////////////////////////////////////////////////////////////////
     // setup the mboard eeprom
@@ -451,21 +453,14 @@ void b100_impl::update_ref_source(const std::string &source){
 }
 
 ////////////////// some GPIF preparation related stuff /////////////////
-static void reset_gpif(fx2_ctrl::sptr _fx2_ctrl, boost::uint16_t ep) {
+void b100_impl::reset_gpif(const boost::uint16_t ep) {
     _fx2_ctrl->usrp_control_write(VRQ_RESET_GPIF, ep, ep, 0, 0);
 }
 
-static void enable_gpif(fx2_ctrl::sptr _fx2_ctrl, bool en) {
+void b100_impl::enable_gpif(const bool en) {
     _fx2_ctrl->usrp_control_write(VRQ_ENABLE_GPIF, en ? 1 : 0, 0, 0, 0);
 }
 
-static void clear_fpga_fifo(fx2_ctrl::sptr _fx2_ctrl) {
+void b100_impl::clear_fpga_fifo(void) {
     _fx2_ctrl->usrp_control_write(VRQ_CLEAR_FPGA_FIFO, 0, 0, 0, 0);
 }
-
-void b100_impl::prepare_gpif(void){
-    //TODO check the order of this:
-    enable_gpif(_fx2_ctrl, true);
-    reset_gpif(_fx2_ctrl, 6);
-    //clear_fpga_fifo(_fx2_ctrl);
-}
diff --git a/host/lib/usrp/b100/b100_impl.hpp b/host/lib/usrp/b100/b100_impl.hpp
index 4ae8d2fc1..4f5017c97 100644
--- a/host/lib/usrp/b100/b100_impl.hpp
+++ b/host/lib/usrp/b100/b100_impl.hpp
@@ -124,7 +124,9 @@ private:
     void update_rx_subdev_spec(const uhd::usrp::subdev_spec_t &);
     void update_tx_subdev_spec(const uhd::usrp::subdev_spec_t &);
     void update_ref_source(const std::string &);
-    void prepare_gpif(void);
+    void reset_gpif(const boost::uint16_t);
+    void enable_gpif(const bool);
+    void clear_fpga_fifo(void);
     void handle_async_message(uhd::transport::managed_recv_buffer::sptr);
 };
 
diff --git a/host/lib/usrp/b100/clock_ctrl.cpp b/host/lib/usrp/b100/clock_ctrl.cpp
index ee56a0e1c..c93ff64c7 100644
--- a/host/lib/usrp/b100/clock_ctrl.cpp
+++ b/host/lib/usrp/b100/clock_ctrl.cpp
@@ -174,6 +174,12 @@ public:
         _chan_rate = 0.0;
         _out_rate = 0.0;
 
+        //perform soft-reset
+        _ad9522_regs.soft_reset = 1;
+        this->send_reg(0x000);
+        this->latch_regs();
+        _ad9522_regs.soft_reset = 0;
+
         //init the clock gen registers
         _ad9522_regs.sdo_active = ad9522_regs_t::SDO_ACTIVE_SDO_SDIO;
         _ad9522_regs.enb_stat_eeprom_at_stat_pin = 0; //use status pin