diff options
Diffstat (limited to 'host/lib/usrp/dboard')
| -rw-r--r-- | host/lib/usrp/dboard/db_rfx.cpp | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/host/lib/usrp/dboard/db_rfx.cpp b/host/lib/usrp/dboard/db_rfx.cpp index 60f6b1a60..1cb39f83c 100644 --- a/host/lib/usrp/dboard/db_rfx.cpp +++ b/host/lib/usrp/dboard/db_rfx.cpp @@ -15,6 +15,12 @@ // along with this program. If not, see <http://www.gnu.org/licenses/>. // +// IO Pin functions +#define POWER_UP (1 << 7) // Low enables power supply +#define ANT_SW (1 << 6) // On TX DB, 0 = TX, 1 = RX, on RX DB 0 = main ant, 1 = RX2 +#define MIX_EN (1 << 5) // Enable appropriate mixer +#define LOCKDET_MASK (1 << 2) // Input pin + #include "adf4360_regs.hpp" #include <uhd/usrp/subdev_props.hpp> #include <uhd/types/ranges.hpp> @@ -104,6 +110,23 @@ rfx_xcvr::rfx_xcvr( const freq_range_t &freq_range ) : xcvr_dboard_base(args){ _freq_range = freq_range; + + //enable the clocks that we need + this->get_interface()->set_clock_enabled(dboard_interface::UNIT_TX, true); + this->get_interface()->set_clock_enabled(dboard_interface::UNIT_RX, true); + + //set the gpio directions + boost::uint16_t output_enables = POWER_UP | ANT_SW | MIX_EN; + this->get_interface()->set_gpio_ddr(dboard_interface::UNIT_TX, output_enables); + this->get_interface()->set_gpio_ddr(dboard_interface::UNIT_RX, output_enables); + + //setup the tx atr (this does not change with antenna) + this->get_interface()->set_atr_reg(dboard_interface::UNIT_TX, dboard_interface::ATR_REG_IDLE, POWER_UP | ANT_SW); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_TX, dboard_interface::ATR_REG_RX_ONLY, POWER_UP | ANT_SW); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_TX, dboard_interface::ATR_REG_TX_ONLY, POWER_UP | MIX_EN); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_TX, dboard_interface::ATR_REG_FULL_DUPLEX, POWER_UP | MIX_EN); + + //set some default values set_lo_freq((_freq_range.min + _freq_range.max)/2.0); set_rx_ant("rx2"); set_rx_pga0_gain(0); @@ -122,7 +145,13 @@ void rfx_xcvr::set_lo_freq(double freq){ } void rfx_xcvr::set_rx_ant(const std::string &ant){ - /* NOP */ + boost::uint16_t ant_val = (ant == "tx/rx")? 0 : ANT_SW; + + //set the rx atr regs + this->get_interface()->set_atr_reg(dboard_interface::UNIT_RX, dboard_interface::ATR_REG_IDLE, POWER_UP | ant_val); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_RX, dboard_interface::ATR_REG_RX_ONLY, POWER_UP | ant_val | MIX_EN); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_RX, dboard_interface::ATR_REG_TX_ONLY, POWER_UP | ant_val); + this->get_interface()->set_atr_reg(dboard_interface::UNIT_RX, dboard_interface::ATR_REG_FULL_DUPLEX, POWER_UP | ant_val | MIX_EN); } void rfx_xcvr::set_rx_pga0_gain(float gain){ |