diff options
Diffstat (limited to 'host/lib/usrp/usrp_b100/dboard_iface.cpp')
| -rw-r--r-- | host/lib/usrp/usrp_b100/dboard_iface.cpp | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp_b100/dboard_iface.cpp b/host/lib/usrp/usrp_b100/dboard_iface.cpp new file mode 100644 index 000000000..ec3da6220 --- /dev/null +++ b/host/lib/usrp/usrp_b100/dboard_iface.cpp @@ -0,0 +1,298 @@ +// +// 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 "b100_iface.hpp" +#include "b100_regs.hpp" +#include "clock_ctrl.hpp" +#include "codec_ctrl.hpp" +#include <uhd/usrp/dboard_iface.hpp> +#include <uhd/types/dict.hpp> +#include <uhd/exception.hpp> +#include <boost/assign/list_of.hpp> + + +using namespace uhd; +using namespace uhd::usrp; +using namespace boost::assign; + +class b100_dboard_iface : public dboard_iface{ +public: + + b100_dboard_iface( + b100_iface::sptr iface, + b100_clock_ctrl::sptr clock, + b100_codec_ctrl::sptr codec + ){ + _iface = iface; + _clock = clock; + _codec = codec; + + //init the clock rate shadows + this->set_clock_rate(UNIT_RX, _clock->get_fpga_clock_rate()); + this->set_clock_rate(UNIT_TX, _clock->get_fpga_clock_rate()); + + _iface->poke16(B100_REG_GPIO_RX_DBG, 0); + _iface->poke16(B100_REG_GPIO_TX_DBG, 0); + } + + ~b100_dboard_iface(void){ + /* NOP */ + } + + special_props_t get_special_props(void){ + special_props_t props; + props.soft_clock_divider = false; + props.mangle_i2c_addrs = false; + return props; + } + + void write_aux_dac(unit_t, aux_dac_t, double); + double read_aux_adc(unit_t, aux_adc_t); + + void _set_pin_ctrl(unit_t, boost::uint16_t); + void _set_atr_reg(unit_t, atr_reg_t, boost::uint16_t); + void _set_gpio_ddr(unit_t, boost::uint16_t); + void _set_gpio_out(unit_t, boost::uint16_t); + void set_gpio_debug(unit_t, int); + boost::uint16_t read_gpio(unit_t); + + void write_i2c(boost::uint8_t, const byte_vector_t &); + byte_vector_t read_i2c(boost::uint8_t, 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 + ); + + void set_clock_rate(unit_t, double); + std::vector<double> get_clock_rates(unit_t); + double get_clock_rate(unit_t); + void set_clock_enabled(unit_t, bool); + double get_codec_rate(unit_t); + +private: + b100_iface::sptr _iface; + b100_clock_ctrl::sptr _clock; + b100_codec_ctrl::sptr _codec; + uhd::dict<unit_t, double> _clock_rates; +}; + +/*********************************************************************** + * Make Function + **********************************************************************/ +dboard_iface::sptr make_b100_dboard_iface( + b100_iface::sptr iface, + b100_clock_ctrl::sptr clock, + b100_codec_ctrl::sptr codec +){ + return dboard_iface::sptr(new b100_dboard_iface(iface, clock, codec)); +} + +/*********************************************************************** + * Clock Rates + **********************************************************************/ +void b100_dboard_iface::set_clock_rate(unit_t unit, double rate){ + _clock_rates[unit] = rate; + switch(unit){ + case UNIT_RX: return _clock->set_rx_dboard_clock_rate(rate); + case UNIT_TX: return _clock->set_tx_dboard_clock_rate(rate); + } +} + +std::vector<double> b100_dboard_iface::get_clock_rates(unit_t unit){ + switch(unit){ + case UNIT_RX: return _clock->get_rx_dboard_clock_rates(); + case UNIT_TX: return _clock->get_tx_dboard_clock_rates(); + default: UHD_THROW_INVALID_CODE_PATH(); + } +} + +double b100_dboard_iface::get_clock_rate(unit_t unit){ + return _clock_rates[unit]; +} + +void b100_dboard_iface::set_clock_enabled(unit_t unit, bool enb){ + switch(unit){ + case UNIT_RX: return _clock->enable_rx_dboard_clock(enb); + case UNIT_TX: return _clock->enable_tx_dboard_clock(enb); + } +} + +double b100_dboard_iface::get_codec_rate(unit_t){ + return _clock->get_fpga_clock_rate(); +} + +/*********************************************************************** + * GPIO + **********************************************************************/ +void b100_dboard_iface::_set_pin_ctrl(unit_t unit, boost::uint16_t value){ + UHD_ASSERT_THROW(GPIO_SEL_ATR == 1); //make this assumption + switch(unit){ + case UNIT_RX: _iface->poke16(B100_REG_GPIO_RX_SEL, value); return; + case UNIT_TX: _iface->poke16(B100_REG_GPIO_TX_SEL, value); return; + } +} + +void b100_dboard_iface::_set_gpio_ddr(unit_t unit, boost::uint16_t value){ + switch(unit){ + case UNIT_RX: _iface->poke16(B100_REG_GPIO_RX_DDR, value); return; + case UNIT_TX: _iface->poke16(B100_REG_GPIO_TX_DDR, value); return; + } +} + +void b100_dboard_iface::_set_gpio_out(unit_t unit, boost::uint16_t value){ + switch(unit){ + case UNIT_RX: _iface->poke16(B100_REG_GPIO_RX_IO, value); return; + case UNIT_TX: _iface->poke16(B100_REG_GPIO_TX_IO, value); return; + } +} + +boost::uint16_t b100_dboard_iface::read_gpio(unit_t unit){ + switch(unit){ + case UNIT_RX: return _iface->peek16(B100_REG_GPIO_RX_IO); + case UNIT_TX: return _iface->peek16(B100_REG_GPIO_TX_IO); + default: UHD_THROW_INVALID_CODE_PATH(); + } +} + +void b100_dboard_iface::_set_atr_reg(unit_t unit, atr_reg_t atr, boost::uint16_t value){ + //define mapping of unit to atr regs to register address + static const uhd::dict< + unit_t, uhd::dict<atr_reg_t, boost::uint32_t> + > unit_to_atr_to_addr = map_list_of + (UNIT_RX, map_list_of + (ATR_REG_IDLE, B100_REG_ATR_IDLE_RXSIDE) + (ATR_REG_TX_ONLY, B100_REG_ATR_INTX_RXSIDE) + (ATR_REG_RX_ONLY, B100_REG_ATR_INRX_RXSIDE) + (ATR_REG_FULL_DUPLEX, B100_REG_ATR_FULL_RXSIDE) + ) + (UNIT_TX, map_list_of + (ATR_REG_IDLE, B100_REG_ATR_IDLE_TXSIDE) + (ATR_REG_TX_ONLY, B100_REG_ATR_INTX_TXSIDE) + (ATR_REG_RX_ONLY, B100_REG_ATR_INRX_TXSIDE) + (ATR_REG_FULL_DUPLEX, B100_REG_ATR_FULL_TXSIDE) + ) + ; + _iface->poke16(unit_to_atr_to_addr[unit][atr], value); +} + +void b100_dboard_iface::set_gpio_debug(unit_t unit, int which){ + //set this unit to all outputs + this->set_gpio_ddr(unit, 0xffff); + + //calculate the debug selections + boost::uint32_t dbg_sels = 0x0; + int sel = (which == 0)? GPIO_SEL_DEBUG_0 : GPIO_SEL_DEBUG_1; + for(size_t i = 0; i < 16; i++) dbg_sels |= sel << i; + + //set the debug on and which debug selection + switch(unit){ + case UNIT_RX: + _iface->poke16(B100_REG_GPIO_RX_DBG, 0xffff); + _iface->poke16(B100_REG_GPIO_RX_SEL, dbg_sels); + return; + + case UNIT_TX: + _iface->poke16(B100_REG_GPIO_TX_DBG, 0xffff); + _iface->poke16(B100_REG_GPIO_TX_SEL, dbg_sels); + return; + } +} + +/*********************************************************************** + * 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 B100_SPI_SS_TX_DB; + case dboard_iface::UNIT_RX: return B100_SPI_SS_RX_DB; + } + throw std::invalid_argument("unknown unit type"); +} + +void b100_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 b100_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 + **********************************************************************/ +void b100_dboard_iface::write_i2c(boost::uint8_t addr, const byte_vector_t &bytes){ + return _iface->write_i2c(addr, bytes); +} + +byte_vector_t b100_dboard_iface::read_i2c(boost::uint8_t addr, size_t num_bytes){ + return _iface->read_i2c(addr, num_bytes); +} + +/*********************************************************************** + * Aux DAX/ADC + **********************************************************************/ +void b100_dboard_iface::write_aux_dac(dboard_iface::unit_t, aux_dac_t which, double value){ + //same aux dacs for each unit + static const uhd::dict<aux_dac_t, b100_codec_ctrl::aux_dac_t> which_to_aux_dac = map_list_of + (AUX_DAC_A, b100_codec_ctrl::AUX_DAC_A) + (AUX_DAC_B, b100_codec_ctrl::AUX_DAC_B) + (AUX_DAC_C, b100_codec_ctrl::AUX_DAC_C) + (AUX_DAC_D, b100_codec_ctrl::AUX_DAC_D) + ; + _codec->write_aux_dac(which_to_aux_dac[which], value); +} + +double b100_dboard_iface::read_aux_adc(dboard_iface::unit_t unit, aux_adc_t which){ + static const uhd::dict< + unit_t, uhd::dict<aux_adc_t, b100_codec_ctrl::aux_adc_t> + > unit_to_which_to_aux_adc = map_list_of + (UNIT_RX, map_list_of + (AUX_ADC_A, b100_codec_ctrl::AUX_ADC_A1) + (AUX_ADC_B, b100_codec_ctrl::AUX_ADC_B1) + ) + (UNIT_TX, map_list_of + (AUX_ADC_A, b100_codec_ctrl::AUX_ADC_A2) + (AUX_ADC_B, b100_codec_ctrl::AUX_ADC_B2) + ) + ; + return _codec->read_aux_adc(unit_to_which_to_aux_adc[unit][which]); +} |