diff options
Diffstat (limited to 'host/lib/usrp')
| -rw-r--r-- | host/lib/usrp/b200/b200_impl.cpp | 34 | ||||
| -rw-r--r-- | host/lib/usrp/b200/b200_impl.hpp | 12 |
2 files changed, 38 insertions, 8 deletions
diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp index 3445f125b..f5129bc24 100644 --- a/host/lib/usrp/b200/b200_impl.cpp +++ b/host/lib/usrp/b200/b200_impl.cpp @@ -37,6 +37,8 @@ #include <ctime> #include <cmath> +#include "../../transport/libusb1_base.hpp" + using namespace uhd; using namespace uhd::usrp; using namespace uhd::transport; @@ -194,7 +196,24 @@ static device_addrs_t b200_find(const device_addr_t &hint) **********************************************************************/ static device::sptr b200_make(const device_addr_t &device_addr) { - return device::sptr(new b200_impl(device_addr)); + uhd::transport::usb_device_handle::sptr handle; + + // We try twice, because the first time, the link might be in a bad state + // and we might need to reset the link, but if that didn't help, trying + // a third time is pointless. + try { + return device::sptr(new b200_impl(device_addr, handle)); + } + catch (const uhd::usb_error &e) { + libusb::device_handle::sptr dev_handle(libusb::device_handle::get_cached_handle( + boost::static_pointer_cast<libusb::special_handle>(handle)->get_device() + )); + dev_handle->clear_endpoints(B200_USB_CTRL_RECV_ENDPOINT, B200_USB_CTRL_SEND_ENDPOINT); + dev_handle->clear_endpoints(B200_USB_DATA_RECV_ENDPOINT, B200_USB_DATA_SEND_ENDPOINT); + dev_handle->reset_device(); + } + + return device::sptr(new b200_impl(device_addr, handle)); } UHD_STATIC_BLOCK(register_b200_device) @@ -205,7 +224,7 @@ UHD_STATIC_BLOCK(register_b200_device) /*********************************************************************** * Structors **********************************************************************/ -b200_impl::b200_impl(const device_addr_t &device_addr) : +b200_impl::b200_impl(const uhd::device_addr_t& device_addr, usb_device_handle::sptr &handle) : _revision(0), _tick_rate(0.0) // Forces a clock initialization at startup { @@ -262,7 +281,6 @@ b200_impl::b200_impl(const device_addr_t &device_addr) : std::vector<usb_device_handle::sptr> device_list = usb_device_handle::get_device_list(vid_pid_pair_list); //locate the matching handle in the device list - usb_device_handle::sptr handle; BOOST_FOREACH(usb_device_handle::sptr dev_handle, device_list) { if (dev_handle->get_serial() == device_addr["serial"]){ handle = dev_handle; @@ -360,10 +378,11 @@ b200_impl::b200_impl(const device_addr_t &device_addr) : ctrl_xport_args["send_frame_size"] = min_frame_size; ctrl_xport_args["num_send_frames"] = "16"; + // This may throw a uhd::usb_error, which will be caught by b200_make(). _ctrl_transport = usb_zero_copy::make( handle, - 4, 8, //interface, endpoint - 3, 4, //interface, endpoint + B200_USB_CTRL_RECV_INTERFACE, B200_USB_CTRL_RECV_ENDPOINT, //interface, endpoint + B200_USB_CTRL_SEND_INTERFACE, B200_USB_CTRL_SEND_ENDPOINT, //interface, endpoint ctrl_xport_args ); while (_ctrl_transport->get_recv_buff(0.0)){} //flush ctrl xport @@ -442,10 +461,11 @@ b200_impl::b200_impl(const device_addr_t &device_addr) : data_xport_args["send_frame_size"] = device_addr.get("send_frame_size", "8192"); data_xport_args["num_send_frames"] = device_addr.get("num_send_frames", "16"); + // This may throw a uhd::usb_error, which will be caught by b200_make(). _data_transport = usb_zero_copy::make( handle, // identifier - 2, 6, // IN interface, endpoint - 1, 2, // OUT interface, endpoint + B200_USB_DATA_RECV_INTERFACE, B200_USB_DATA_RECV_ENDPOINT, //interface, endpoint + B200_USB_DATA_SEND_INTERFACE, B200_USB_DATA_SEND_ENDPOINT, //interface, endpoint data_xport_args // param hints ); while (_data_transport->get_recv_buff(0.0)){} //flush ctrl xport diff --git a/host/lib/usrp/b200/b200_impl.hpp b/host/lib/usrp/b200/b200_impl.hpp index 52ecb98f2..cbd51426d 100644 --- a/host/lib/usrp/b200/b200_impl.hpp +++ b/host/lib/usrp/b200/b200_impl.hpp @@ -78,6 +78,16 @@ static const boost::uint32_t B200_RX_GPS_UART_SID = FLIP_SID(B200_TX_GPS_UART_SI static const boost::uint32_t B200_LOCAL_CTRL_SID = 0x00000040; static const boost::uint32_t B200_LOCAL_RESP_SID = FLIP_SID(B200_LOCAL_CTRL_SID); +static const unsigned char B200_USB_CTRL_RECV_INTERFACE = 4; +static const unsigned char B200_USB_CTRL_RECV_ENDPOINT = 8; +static const unsigned char B200_USB_CTRL_SEND_INTERFACE = 3; +static const unsigned char B200_USB_CTRL_SEND_ENDPOINT = 4; + +static const unsigned char B200_USB_DATA_RECV_INTERFACE = 2; +static const unsigned char B200_USB_DATA_RECV_ENDPOINT = 6; +static const unsigned char B200_USB_DATA_SEND_INTERFACE = 1; +static const unsigned char B200_USB_DATA_SEND_ENDPOINT = 2; + /* * VID/PID pairs for all B2xx products */ @@ -96,7 +106,7 @@ class b200_impl : public uhd::device { public: //structors - b200_impl(const uhd::device_addr_t &); + b200_impl(const uhd::device_addr_t &, uhd::transport::usb_device_handle::sptr &handle); ~b200_impl(void); //the io interface |