x300: Added DMA FIFO support to X300

- Added HG vs HGS detection logic
- Added DMA FIFO configuration code

1 files changed, 9 insertions, 2 deletions

diff --git a/host/lib/usrp/x300/x300_impl.hpp b/host/lib/usrp/x300/x300_impl.hpp
index 1630047af..a71540e8b 100644
--- a/host/lib/usrp/x300/x300_impl.hpp
+++ b/host/lib/usrp/x300/x300_impl.hpp
@@ -41,6 +41,7 @@
 #include "radio_ctrl_core_3000.hpp"
 #include "rx_frontend_core_200.hpp"
 #include "tx_frontend_core_200.hpp"
+#include "dma_fifo_core_3000.hpp"
 #include "gpio_core_200.hpp"
 #include <boost/weak_ptr.hpp>
 #include <uhd/usrp/gps_ctrl.hpp>
@@ -56,8 +57,10 @@ static const std::string X300_FW_FILE_NAME  = "usrp_x300_fw.bin";
 static const double X300_DEFAULT_TICK_RATE      = 200e6;        //Hz
 static const double X300_BUS_CLOCK_RATE         = 166.666667e6; //Hz
 
-static const size_t X300_TX_HW_BUFF_SIZE        = 520*1024;      //512K SRAM buffer + 8K 2Clk FIFO
-static const size_t X300_TX_FC_RESPONSE_FREQ    = 8;            //per flow-control window
+static const size_t X300_TX_HW_BUFF_SIZE_SRAM       = 520*1024;      //512K SRAM buffer + 8K 2Clk FIFO
+static const size_t X300_TX_FC_RESPONSE_FREQ_SRAM   = 8;             //per flow-control window
+static const size_t X300_TX_HW_BUFF_SIZE_DRAM       = 128*1024;
+static const size_t X300_TX_FC_RESPONSE_FREQ_DRAM   = 32;
 
 static const size_t X300_RX_SW_BUFF_SIZE_ETH        = 0x2000000;//32MiB    For an ~8k frame size any size >32MiB is just wasted buffer space
 static const size_t X300_RX_SW_BUFF_SIZE_ETH_MACOS  = 0x100000; //1Mib
@@ -226,6 +229,10 @@ private:
              return slot_name == "A" ? 0 : 1;
         }
 
+        bool has_dram_buff;
+        dma_fifo_core_3000::sptr dram_buff_ctrl[NUM_RADIOS];
+
+
         //other perifs on mboard
         x300_clock_ctrl::sptr clock;
         uhd::gps_ctrl::sptr gps;