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authorJosh Blum <josh@joshknows.com>2010-09-29 15:35:54 -0700
committerJosh Blum <josh@joshknows.com>2010-09-29 15:41:33 -0700
commit543a63648f11d0e502e897f3cd98667005580c9e (patch)
treedbd2ce144887b068e64196f1735791c73f623559 /host/lib/usrp
parent302078474312ad87db69a9c06b63e3f8a0c19cd5 (diff)
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usrp: transfer resize options and documentation
Diffstat (limited to 'host/lib/usrp')
-rw-r--r--host/lib/usrp/usrp1/usrp1_impl.cpp26
1 files changed, 20 insertions, 6 deletions
diff --git a/host/lib/usrp/usrp1/usrp1_impl.cpp b/host/lib/usrp/usrp1/usrp1_impl.cpp
index b4c23bf12..793e3027d 100644
--- a/host/lib/usrp/usrp1/usrp1_impl.cpp
+++ b/host/lib/usrp/usrp1/usrp1_impl.cpp
@@ -30,6 +30,7 @@
#include <boost/assign/list_of.hpp>
#include <boost/filesystem.hpp>
#include <boost/thread/thread.hpp>
+#include <boost/lexical_cast.hpp>
#include <iostream>
using namespace uhd;
@@ -107,6 +108,15 @@ static device_addrs_t usrp1_find(const device_addr_t &hint)
/***********************************************************************
* Make
**********************************************************************/
+template<typename output_type> static output_type cast_from_dev_addr(
+ const device_addr_t &device_addr,
+ const std::string &key,
+ output_type def_val
+){
+ return (device_addr.has_key(key))?
+ boost::lexical_cast<output_type>(device_addr[key]) : def_val;
+}
+
static device::sptr usrp1_make(const device_addr_t &device_addr)
{
//extract the FPGA path for the USRP1
@@ -130,11 +140,15 @@ static device::sptr usrp1_make(const device_addr_t &device_addr)
usrp_ctrl = usrp_ctrl::make(ctrl_transport);
usrp_ctrl->usrp_load_fpga(usrp1_fpga_image);
- data_transport = usb_zero_copy::make(handle, // identifier
- 6, // IN endpoint
- 2, // OUT endpoint
- 2 * (1 << 20), // buffer size
- 16384); // transfer size
+ data_transport = usb_zero_copy::make(
+ handle, // identifier
+ 6, // IN endpoint
+ 2, // OUT endpoint
+ size_t(cast_from_dev_addr<double>(device_addr, "recv_xfer_size", 0)),
+ size_t(cast_from_dev_addr<double>(device_addr, "recv_num_xfers", 0)),
+ size_t(cast_from_dev_addr<double>(device_addr, "send_xfer_size", 0)),
+ size_t(cast_from_dev_addr<double>(device_addr, "send_num_xfers", 0))
+ );
break;
}
}
@@ -173,7 +187,7 @@ usrp1_impl::usrp1_impl(uhd::transport::usb_zero_copy::sptr data_transport,
//initialize the mboard
mboard_init();
- //initialize the dboards
+ //initialize the dboards
dboard_init();
//initialize the dsps