diff options
Diffstat (limited to 'host/lib/usrp/b200')
| -rw-r--r-- | host/lib/usrp/b200/b200_iface.cpp | 20 | ||||
| -rw-r--r-- | host/lib/usrp/b200/b200_io_impl.cpp | 4 |
2 files changed, 19 insertions, 5 deletions
diff --git a/host/lib/usrp/b200/b200_iface.cpp b/host/lib/usrp/b200/b200_iface.cpp index 1d05e159c..a74e058d0 100644 --- a/host/lib/usrp/b200/b200_iface.cpp +++ b/host/lib/usrp/b200/b200_iface.cpp @@ -69,6 +69,11 @@ const static boost::uint8_t FX3_STATE_RUNNING = 0x04; const static boost::uint8_t FX3_STATE_UNCONFIGURED = 0x05; const static boost::uint8_t FX3_STATE_ERROR = 0x06; +const static int VREQ_MAX_SIZE_USB2 = 64; +const static int VREQ_MAX_SIZE_USB3 = 512; +const static int VREQ_DEFAULT_SIZE = VREQ_MAX_SIZE_USB2; +const static int VREQ_MAX_SIZE = VREQ_MAX_SIZE_USB3; + typedef boost::uint32_t hash_type; @@ -484,8 +489,17 @@ public: hash_type hash = generate_hash(filename); hash_type loaded_hash; usrp_get_fpga_hash(loaded_hash); if (hash == loaded_hash) return 0; - - unsigned char out_buff[64]; + + int transfer_size = VREQ_DEFAULT_SIZE; + int current_usb_speed = get_usb_speed(); + if (current_usb_speed == 3) + transfer_size = VREQ_MAX_SIZE_USB3; + else if (current_usb_speed != 2) + throw uhd::io_error("load_fpga: get_usb_speed returned invalid USB speed (not 2 or 3)"); + + UHD_ASSERT_THROW(transfer_size <= VREQ_MAX_SIZE); + + unsigned char out_buff[VREQ_MAX_SIZE]; memset(out_buff, 0x00, sizeof(out_buff)); fx3_control_write(B200_VREQ_FPGA_CONFIG, 0, 0, out_buff, 1, 1000); @@ -535,7 +549,7 @@ public: size_t bytes_sent = 0; while(!file.eof()) { - file.read((char *) out_buff, sizeof(out_buff)); + file.read((char *) out_buff, transfer_size); const std::streamsize n = file.gcount(); if(n == 0) continue; diff --git a/host/lib/usrp/b200/b200_io_impl.cpp b/host/lib/usrp/b200/b200_io_impl.cpp index 1eddeb8bc..7b09c87df 100644 --- a/host/lib/usrp/b200/b200_io_impl.cpp +++ b/host/lib/usrp/b200/b200_io_impl.cpp @@ -249,14 +249,14 @@ rx_streamer::sptr b200_impl::get_rx_stream(const uhd::stream_args_t &args_) //calculate packet size static const size_t hdr_size = 0 + vrt::max_if_hdr_words32*sizeof(boost::uint32_t) - + sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer + //+ sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer - sizeof(vrt::if_packet_info_t().cid) //no class id ever used - sizeof(vrt::if_packet_info_t().tsi) //no int time ever used ; const size_t bpp = _data_transport->get_recv_frame_size() - hdr_size; const size_t bpi = convert::get_bytes_per_item(args.otw_format); size_t spp = unsigned(args.args.cast<double>("spp", bpp/bpi)); - spp = std::min<size_t>(2000, spp); //magic maximum for framing at full rate + spp = std::min<size_t>(2044, spp); //magic maximum for framing at full rate //make the new streamer given the samples per packet if (not my_streamer) my_streamer = boost::make_shared<sph::recv_packet_streamer>(spp); |