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//
// 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 "usrp_e_iface.hpp"
#include "usrp_e_regs.hpp"
#include <uhd/usrp/dboard_iface.hpp>
#include <uhd/types/dict.hpp>
#include <uhd/utils/assert.hpp>
#include <boost/assign/list_of.hpp>
#include <linux/usrp_e.h> //i2c and spi constants
using namespace uhd::usrp;
class usrp_e_dboard_iface : public dboard_iface{
public:
usrp_e_dboard_iface(usrp_e_iface::sptr iface);
~usrp_e_dboard_iface(void);
void write_aux_dac(unit_t, int, float);
float read_aux_adc(unit_t, int);
void set_atr_reg(unit_t, atr_reg_t, boost::uint16_t);
void set_gpio_ddr(unit_t, boost::uint16_t);
boost::uint16_t read_gpio(unit_t);
void write_i2c(int, const byte_vector_t &);
byte_vector_t read_i2c(int, size_t);
void write_spi(
unit_t unit,
const spi_config_t &config,
boost::uint32_t data,
size_t num_bits
);
boost::uint32_t read_write_spi(
unit_t unit,
const spi_config_t &config,
boost::uint32_t data,
size_t num_bits
);
double get_clock_rate(unit_t);
void set_clock_enabled(unit_t, bool);
private:
usrp_e_iface::sptr _iface;
};
/***********************************************************************
* Make Function
**********************************************************************/
dboard_iface::sptr make_usrp_e_dboard_iface(usrp_e_iface::sptr iface){
return dboard_iface::sptr(new usrp_e_dboard_iface(iface));
}
/***********************************************************************
* Structors
**********************************************************************/
usrp_e_dboard_iface::usrp_e_dboard_iface(usrp_e_iface::sptr iface){
_iface = iface;
}
usrp_e_dboard_iface::~usrp_e_dboard_iface(void){
/* NOP */
}
/***********************************************************************
* Clock Rates
**********************************************************************/
double usrp_e_dboard_iface::get_clock_rate(unit_t){
throw std::runtime_error("not implemented");
}
void usrp_e_dboard_iface::set_clock_enabled(unit_t, bool){
throw std::runtime_error("not implemented");
}
/***********************************************************************
* GPIO
**********************************************************************/
void usrp_e_dboard_iface::set_gpio_ddr(unit_t bank, boost::uint16_t value){
//define mapping of gpio bank to register address
static const uhd::dict<unit_t, boost::uint32_t> bank_to_addr = boost::assign::map_list_of
(UNIT_RX, UE_REG_GPIO_RX_DDR)
(UNIT_TX, UE_REG_GPIO_TX_DDR)
;
_iface->poke16(bank_to_addr[bank], value);
}
boost::uint16_t usrp_e_dboard_iface::read_gpio(unit_t bank){
//define mapping of gpio bank to register address
static const uhd::dict<unit_t, boost::uint32_t> bank_to_addr = boost::assign::map_list_of
(UNIT_RX, UE_REG_GPIO_RX_IO)
(UNIT_TX, UE_REG_GPIO_TX_IO)
;
return _iface->peek16(bank_to_addr[bank]);
}
void usrp_e_dboard_iface::set_atr_reg(unit_t bank, atr_reg_t atr, boost::uint16_t value){
//define mapping of bank to atr regs to register address
static const uhd::dict<
unit_t, uhd::dict<atr_reg_t, boost::uint32_t>
> bank_to_atr_to_addr = boost::assign::map_list_of
(UNIT_RX, boost::assign::map_list_of
(ATR_REG_IDLE, UE_REG_ATR_IDLE_RXSIDE)
(ATR_REG_TX_ONLY, UE_REG_ATR_INTX_RXSIDE)
(ATR_REG_RX_ONLY, UE_REG_ATR_INRX_RXSIDE)
(ATR_REG_FULL_DUPLEX, UE_REG_ATR_FULL_RXSIDE)
)
(UNIT_TX, boost::assign::map_list_of
(ATR_REG_IDLE, UE_REG_ATR_IDLE_TXSIDE)
(ATR_REG_TX_ONLY, UE_REG_ATR_INTX_TXSIDE)
(ATR_REG_RX_ONLY, UE_REG_ATR_INRX_TXSIDE)
(ATR_REG_FULL_DUPLEX, UE_REG_ATR_FULL_TXSIDE)
)
;
_iface->poke16(bank_to_atr_to_addr[bank][atr], value);
}
/***********************************************************************
* SPI
**********************************************************************/
/*!
* Static function to convert a unit type to a spi slave device number.
* \param unit the dboard interface unit type enum
* \return the slave device number
*/
static boost::uint32_t unit_to_otw_spi_dev(dboard_iface::unit_t unit){
switch(unit){
case dboard_iface::UNIT_TX: return UE_SPI_CTRL_TXNEG;
case dboard_iface::UNIT_RX: return UE_SPI_CTRL_RXNEG;
}
throw std::invalid_argument("unknown unit type");
}
void usrp_e_dboard_iface::write_spi(
unit_t unit,
const spi_config_t &config,
boost::uint32_t data,
size_t num_bits
){
_iface->transact_spi(unit_to_otw_spi_dev(unit), config, data, num_bits, false /*no rb*/);
}
boost::uint32_t usrp_e_dboard_iface::read_write_spi(
unit_t unit,
const spi_config_t &config,
boost::uint32_t data,
size_t num_bits
){
return _iface->transact_spi(unit_to_otw_spi_dev(unit), config, data, num_bits, true /*rb*/);
}
/***********************************************************************
* I2C
**********************************************************************/
static const size_t max_i2c_data_bytes = 10;
void usrp_e_dboard_iface::write_i2c(int i2c_addr, const byte_vector_t &buf){
//allocate some memory for this transaction
ASSERT_THROW(buf.size() <= max_i2c_data_bytes);
boost::uint8_t mem[sizeof(usrp_e_i2c) + max_i2c_data_bytes];
//load the data struct
usrp_e_i2c &data = reinterpret_cast<usrp_e_i2c&>(mem);
data.addr = i2c_addr;
data.len = buf.size();
std::copy(buf.begin(), buf.end(), data.data);
//call the spi ioctl
_iface->ioctl(USRP_E_I2C_WRITE, &data);
}
dboard_iface::byte_vector_t usrp_e_dboard_iface::read_i2c(int i2c_addr, size_t num_bytes){
//allocate some memory for this transaction
ASSERT_THROW(num_bytes <= max_i2c_data_bytes);
boost::uint8_t mem[sizeof(usrp_e_i2c) + max_i2c_data_bytes];
//load the data struct
usrp_e_i2c &data = reinterpret_cast<usrp_e_i2c&>(mem);
data.addr = i2c_addr;
data.len = num_bytes;
//call the spi ioctl
_iface->ioctl(USRP_E_I2C_READ, &data);
//unload the data
byte_vector_t ret(data.len);
ASSERT_THROW(ret.size() == num_bytes);
std::copy(data.data, data.data+ret.size(), ret.begin());
return ret;
}
/***********************************************************************
* Aux DAX/ADC
**********************************************************************/
void usrp_e_dboard_iface::write_aux_dac(dboard_iface::unit_t unit, int which, float value){
throw std::runtime_error("not implemented");
}
float usrp_e_dboard_iface::read_aux_adc(dboard_iface::unit_t unit, int which){
throw std::runtime_error("not implemented");
}
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