Added support to set GPIO pins from dboard interface:

	write gpio and set pin control (atr or gpio)

Added property to get dboard interface from the dboard obj.

2 files changed, 22 insertions, 3 deletions

diff --git a/host/include/uhd/usrp/dboard_iface.hpp b/host/include/uhd/usrp/dboard_iface.hpp
index 1214a1a2f..7ecfcd3c0 100644
--- a/host/include/uhd/usrp/dboard_iface.hpp
+++ b/host/include/uhd/usrp/dboard_iface.hpp
@@ -68,19 +68,29 @@ public:
     virtual float read_aux_adc(unit_t unit, int which_adc) = 0;
 
     /*!
+     * Set a daughterboard output pin control source.
+     * By default, the outputs are all GPIO controlled.
+     *
+     * \param unit which unit rx or tx
+     * \param value 16-bits, 0=GPIO controlled, 1=ATR controlled
+     */
+    virtual void set_pin_ctrl(unit_t unit, boost::uint16_t value) = 0;
+
+    /*!
      * Set a daughterboard ATR register.
      *
      * \param unit which unit rx or tx
      * \param reg which ATR register to set
-     * \param value 16-bits, 0=FPGA output low, 1=FPGA output high
+     * \param value 16-bits, 0=ATR output low, 1=ATR output high
      */
     virtual void set_atr_reg(unit_t unit, atr_reg_t reg, boost::uint16_t value) = 0;
 
     /*!
      * Set daughterboard GPIO data direction register.
+     * By default, the GPIO pins are all inputs.
      *
      * \param unit which unit rx or tx
-     * \param value 16-bits, 0=FPGA input, 1=FPGA output
+     * \param value 16-bits, 0=GPIO input, 1=GPIO output
      */
     virtual void set_gpio_ddr(unit_t unit, boost::uint16_t value) = 0;
 
@@ -88,6 +98,14 @@ public:
      * Read daughterboard GPIO pin values.
      *
      * \param unit which unit rx or tx
+     * \param value 16-bits, 0=GPIO output low, 1=GPIO output high
+     */
+    virtual void write_gpio(unit_t unit, boost::uint16_t value) = 0;
+
+    /*!
+     * Read daughterboard GPIO pin values.
+     *
+     * \param unit which unit rx or tx
      * \return the value of the gpio unit
      */
     virtual boost::uint16_t read_gpio(unit_t unit) = 0;
diff --git a/host/include/uhd/usrp/dboard_props.hpp b/host/include/uhd/usrp/dboard_props.hpp
index 0208a6c2c..4d5c5efbd 100644
--- a/host/include/uhd/usrp/dboard_props.hpp
+++ b/host/include/uhd/usrp/dboard_props.hpp
@@ -30,7 +30,8 @@ namespace uhd{ namespace usrp{
         DBOARD_PROP_SUBDEV       = 's', //ro, wax::obj
         DBOARD_PROP_SUBDEV_NAMES = 'S', //ro, prop_names_t
         DBOARD_PROP_USED_SUBDEVS = 'u', //ro, prop_names_t
-        DBOARD_PROP_DBOARD_ID    = 'i'  //rw, dboard_id_t
+        DBOARD_PROP_DBOARD_ID    = 'i', //rw, dboard_id_t
+        DBOARD_PROP_DBOARD_IFACE = 'f'  //ro, dboard_iface::sptr
         //DBOARD_PROP_CODEC              //ro, wax::obj //----> not sure, dont have to deal with yet
     };