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-rw-r--r--host/lib/usrp/usrp1/usrp1_iface.cpp251
1 files changed, 251 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp1/usrp1_iface.cpp b/host/lib/usrp/usrp1/usrp1_iface.cpp
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+++ b/host/lib/usrp/usrp1/usrp1_iface.cpp
@@ -0,0 +1,251 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "usrp1_iface.hpp"
+#include "usrp_commands.h"
+#include <uhd/utils/assert.hpp>
+#include <uhd/utils/byteswap.hpp>
+#include <boost/format.hpp>
+#include <stdexcept>
+#include <iostream>
+#include <iomanip>
+
+using namespace uhd;
+using namespace uhd::usrp;
+using namespace uhd::transport;
+
+static const bool iface_debug = false;
+
+class usrp1_iface_impl : public usrp1_iface{
+public:
+ /*******************************************************************
+ * Structors
+ ******************************************************************/
+ usrp1_iface_impl(usrp_ctrl::sptr ctrl_transport)
+ {
+ _ctrl_transport = ctrl_transport;
+ mb_eeprom = mboard_eeprom_t(*this, mboard_eeprom_t::MAP_B000);
+ }
+
+ ~usrp1_iface_impl(void)
+ {
+ /* NOP */
+ }
+
+ /*******************************************************************
+ * Peek and Poke
+ ******************************************************************/
+ void poke32(boost::uint32_t addr, boost::uint32_t value)
+ {
+ boost::uint32_t swapped = uhd::htonx(value);
+
+ if (iface_debug) {
+ std::cout.fill('0');
+ std::cout << "poke32(";
+ std::cout << std::dec << std::setw(2) << addr << ", 0x";
+ std::cout << std::hex << std::setw(8) << value << ")" << std::endl;
+ }
+
+ boost::uint8_t w_index_h = SPI_ENABLE_FPGA & 0xff;
+ boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_1) & 0xff;
+
+ int ret =_ctrl_transport->usrp_control_write(
+ VRQ_SPI_WRITE,
+ addr & 0x7f,
+ (w_index_h << 8) | (w_index_l << 0),
+ (unsigned char*) &swapped,
+ sizeof(boost::uint32_t));
+
+ if (ret < 0)
+ std::cerr << "USRP: failed memory write: " << ret << std::endl;
+ }
+
+ boost::uint32_t peek32(boost::uint32_t addr)
+ {
+ boost::uint32_t value_out;
+
+ boost::uint8_t w_index_h = SPI_ENABLE_FPGA & 0xff;
+ boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_1) & 0xff;
+
+ int ret = _ctrl_transport->usrp_control_read(
+ VRQ_SPI_READ,
+ 0x80 | (addr & 0x7f),
+ (w_index_h << 8) | (w_index_l << 0),
+ (unsigned char*) &value_out,
+ sizeof(boost::uint32_t));
+
+ if (ret < 0)
+ std::cerr << "USRP: failed memory read: " << ret << std::endl;
+
+ return uhd::ntohx(value_out);
+ }
+
+ /*******************************************************************
+ * I2C
+ ******************************************************************/
+ static const size_t max_i2c_data_bytes = 64;
+
+ //TODO: make this handle EEPROM page sizes. right now you can't write over a 16-byte boundary.
+ //to accomplish this you'll have to have addr offset as a separate parameter.
+
+ void write_i2c(boost::uint8_t addr, const byte_vector_t &bytes)
+ {
+ UHD_ASSERT_THROW(bytes.size() < max_i2c_data_bytes);
+
+ unsigned char buff[max_i2c_data_bytes];
+ std::copy(bytes.begin(), bytes.end(), buff);
+
+ int ret = _ctrl_transport->usrp_i2c_write(addr & 0xff,
+ buff,
+ bytes.size());
+
+ // TODO throw and catch i2c failures during eeprom read
+ if (iface_debug && (ret < 0))
+ std::cerr << "USRP: failed i2c write: " << ret << std::endl;
+ }
+
+ byte_vector_t read_i2c(boost::uint8_t addr, size_t num_bytes)
+ {
+ UHD_ASSERT_THROW(num_bytes < max_i2c_data_bytes);
+
+ unsigned char buff[max_i2c_data_bytes];
+ int ret = _ctrl_transport->usrp_i2c_read(addr & 0xff,
+ buff,
+ num_bytes);
+
+ // TODO throw and catch i2c failures during eeprom read
+ if (iface_debug && ((ret < 0) || (unsigned)ret < (num_bytes))) {
+ std::cerr << "USRP: failed i2c read: " << ret << std::endl;
+ return byte_vector_t(num_bytes, 0xff);
+ }
+
+ byte_vector_t out_bytes;
+ for (size_t i = 0; i < num_bytes; i++)
+ out_bytes.push_back(buff[i]);
+
+ return out_bytes;
+ }
+
+ /*******************************************************************
+ * SPI
+ *
+ * For non-readback transactions use the SPI_WRITE command, which is
+ * simpler and uses the USB control buffer for OUT data. No data
+ * needs to be returned.
+ *
+ * For readback transactions use SPI_TRANSACT, which places up to
+ * 4 bytes of OUT data in the device request fields and uses the
+ * control buffer for IN data.
+ ******************************************************************/
+ boost::uint32_t transact_spi(int which_slave,
+ const spi_config_t &,
+ boost::uint32_t bits,
+ size_t num_bits,
+ bool readback)
+ {
+ UHD_ASSERT_THROW((num_bits <= 32) && !(num_bits % 8));
+ size_t num_bytes = num_bits / 8;
+
+ // Byteswap on num_bytes
+ unsigned char buff[4] = { 0 };
+ for (size_t i = 1; i <= num_bytes; i++)
+ buff[num_bytes - i] = (bits >> ((i - 1) * 8)) & 0xff;
+
+ if (readback) {
+ boost::uint8_t w_len_h = which_slave & 0xff;
+ boost::uint8_t w_len_l = num_bytes & 0xff;
+
+ int ret = _ctrl_transport->usrp_control_read(
+ VRQ_SPI_TRANSACT,
+ (buff[0] << 8) | (buff[1] << 0),
+ (buff[2] << 8) | (buff[3] << 0),
+ buff,
+ (w_len_h << 8) | (w_len_l << 0));
+
+ if (ret < 0) {
+ std::cout << "USRP: failed SPI readback transaction: "
+ << std::dec << ret << std::endl;
+ }
+
+ boost::uint32_t val = (((boost::uint32_t)buff[0]) << 0) |
+ (((boost::uint32_t)buff[1]) << 8) |
+ (((boost::uint32_t)buff[2]) << 16) |
+ (((boost::uint32_t)buff[3]) << 24);
+ return val;
+ }
+ else {
+ boost::uint8_t w_index_h = which_slave & 0xff;
+ boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_0) & 0xff;
+
+ int ret =_ctrl_transport->usrp_control_write(
+ VRQ_SPI_WRITE,
+ 0x00,
+ (w_index_h << 8) | (w_index_l << 0),
+ buff, num_bytes);
+
+ if (ret < 0) {
+ std::cout << "USRP: failed SPI transaction: "
+ << std::dec << ret << std::endl;
+ }
+
+ return 0;
+ }
+ }
+
+ /*******************************************************************
+ * Firmware
+ *
+ * This call is deprecated.
+ ******************************************************************/
+ void write_firmware_cmd(boost::uint8_t request,
+ boost::uint16_t value,
+ boost::uint16_t index,
+ unsigned char *buff,
+ boost::uint16_t length)
+ {
+ int ret;
+
+ if (request & 0x80) {
+ ret = _ctrl_transport->usrp_control_read(request,
+ value,
+ index,
+ buff,
+ length);
+ }
+ else {
+ ret = _ctrl_transport->usrp_control_write(request,
+ value,
+ index,
+ buff,
+ length);
+ }
+
+ if (ret < 0)
+ std::cerr << "USRP: failed firmware command: " << ret << std::endl;
+ }
+
+private:
+ usrp_ctrl::sptr _ctrl_transport;
+};
+
+/***********************************************************************
+ * Public Make Function
+ **********************************************************************/
+usrp1_iface::sptr usrp1_iface::make(usrp_ctrl::sptr ctrl_transport)
+{
+ return sptr(new usrp1_iface_impl(ctrl_transport));
+}
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