diff options
Diffstat (limited to 'host/lib/usrp/usrp_e100/codec_ctrl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp_e100/codec_ctrl.cpp | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/host/lib/usrp/usrp_e100/codec_ctrl.cpp b/host/lib/usrp/usrp_e100/codec_ctrl.cpp deleted file mode 100644 index 43ad94a88..000000000 --- a/host/lib/usrp/usrp_e100/codec_ctrl.cpp +++ /dev/null @@ -1,280 +0,0 @@ -// -// Copyright 2010-2011 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 "codec_ctrl.hpp" -#include "ad9862_regs.hpp" -#include <uhd/utils/log.hpp> -#include <uhd/types/dict.hpp> -#include <uhd/exception.hpp> -#include <uhd/utils/algorithm.hpp> -#include <boost/cstdint.hpp> -#include <boost/tuple/tuple.hpp> -#include <boost/math/special_functions/round.hpp> -#include "usrp_e100_regs.hpp" //spi slave constants -#include <boost/assign/list_of.hpp> - -using namespace uhd; - -const gain_range_t usrp_e100_codec_ctrl::tx_pga_gain_range(-20, 0, double(0.1)); -const gain_range_t usrp_e100_codec_ctrl::rx_pga_gain_range(0, 20, 1); - -/*********************************************************************** - * Codec Control Implementation - **********************************************************************/ -class usrp_e100_codec_ctrl_impl : public usrp_e100_codec_ctrl{ -public: - //structors - usrp_e100_codec_ctrl_impl(usrp_e100_iface::sptr iface); - ~usrp_e100_codec_ctrl_impl(void); - - //aux adc and dac control - double read_aux_adc(aux_adc_t which); - void write_aux_dac(aux_dac_t which, double volts); - - //pga gain control - void set_tx_pga_gain(double); - double get_tx_pga_gain(void); - void set_rx_pga_gain(double, char); - double get_rx_pga_gain(char); - -private: - usrp_e100_iface::sptr _iface; - ad9862_regs_t _ad9862_regs; - void send_reg(boost::uint8_t addr); - void recv_reg(boost::uint8_t addr); -}; - -/*********************************************************************** - * Codec Control Structors - **********************************************************************/ -usrp_e100_codec_ctrl_impl::usrp_e100_codec_ctrl_impl(usrp_e100_iface::sptr iface){ - _iface = iface; - - //soft reset - _ad9862_regs.soft_reset = 1; - this->send_reg(0); - - //initialize the codec register settings - _ad9862_regs.sdio_bidir = ad9862_regs_t::SDIO_BIDIR_SDIO_SDO; - _ad9862_regs.lsb_first = ad9862_regs_t::LSB_FIRST_MSB; - _ad9862_regs.soft_reset = 0; - - //setup rx side of codec - _ad9862_regs.byp_buffer_a = 1; - _ad9862_regs.byp_buffer_b = 1; - _ad9862_regs.buffer_a_pd = 1; - _ad9862_regs.buffer_b_pd = 1; - _ad9862_regs.rx_pga_a = 0;//0x1f; //TODO bring under api control - _ad9862_regs.rx_pga_b = 0;//0x1f; //TODO bring under api control - _ad9862_regs.rx_twos_comp = 1; - _ad9862_regs.rx_hilbert = ad9862_regs_t::RX_HILBERT_DIS; - - //setup tx side of codec - _ad9862_regs.two_data_paths = ad9862_regs_t::TWO_DATA_PATHS_BOTH; - _ad9862_regs.interleaved = ad9862_regs_t::INTERLEAVED_INTERLEAVED; - _ad9862_regs.tx_retime = ad9862_regs_t::TX_RETIME_CLKOUT2; - _ad9862_regs.tx_pga_gain = 199; //TODO bring under api control - _ad9862_regs.tx_hilbert = ad9862_regs_t::TX_HILBERT_DIS; - _ad9862_regs.interp = ad9862_regs_t::INTERP_2; - _ad9862_regs.tx_twos_comp = 1; - _ad9862_regs.fine_mode = ad9862_regs_t::FINE_MODE_BYPASS; - _ad9862_regs.coarse_mod = ad9862_regs_t::COARSE_MOD_BYPASS; - _ad9862_regs.dac_a_coarse_gain = 0x3; - _ad9862_regs.dac_b_coarse_gain = 0x3; - _ad9862_regs.edges = ad9862_regs_t::EDGES_NORMAL; - - //setup the dll - _ad9862_regs.input_clk_ctrl = ad9862_regs_t::INPUT_CLK_CTRL_EXTERNAL; - _ad9862_regs.dll_mult = ad9862_regs_t::DLL_MULT_2; - _ad9862_regs.dll_mode = ad9862_regs_t::DLL_MODE_FAST; - - //write the register settings to the codec - for (uint8_t addr = 0; addr <= 25; addr++){ - this->send_reg(addr); - } - - //always start conversions for aux ADC - _ad9862_regs.start_a = 1; - _ad9862_regs.start_b = 1; - - //aux adc clock - _ad9862_regs.clk_4 = ad9862_regs_t::CLK_4_1_4; - this->send_reg(34); -} - -usrp_e100_codec_ctrl_impl::~usrp_e100_codec_ctrl_impl(void){ - //set aux dacs to zero - this->write_aux_dac(AUX_DAC_A, 0); - this->write_aux_dac(AUX_DAC_B, 0); - this->write_aux_dac(AUX_DAC_C, 0); - this->write_aux_dac(AUX_DAC_D, 0); - - //power down - _ad9862_regs.all_rx_pd = 1; - this->send_reg(1); - _ad9862_regs.tx_digital_pd = 1; - _ad9862_regs.tx_analog_pd = ad9862_regs_t::TX_ANALOG_PD_BOTH; - this->send_reg(8); -} - -/*********************************************************************** - * Codec Control Gain Control Methods - **********************************************************************/ -static const int mtpgw = 255; //maximum tx pga gain word - -void usrp_e100_codec_ctrl_impl::set_tx_pga_gain(double gain){ - int gain_word = int(mtpgw*(gain - tx_pga_gain_range.start())/(tx_pga_gain_range.stop() - tx_pga_gain_range.start())); - _ad9862_regs.tx_pga_gain = uhd::clip(gain_word, 0, mtpgw); - this->send_reg(16); -} - -double usrp_e100_codec_ctrl_impl::get_tx_pga_gain(void){ - return (_ad9862_regs.tx_pga_gain*(tx_pga_gain_range.stop() - tx_pga_gain_range.start())/mtpgw) + tx_pga_gain_range.start(); -} - -static const int mrpgw = 0x14; //maximum rx pga gain word - -void usrp_e100_codec_ctrl_impl::set_rx_pga_gain(double gain, char which){ - int gain_word = int(mrpgw*(gain - rx_pga_gain_range.start())/(rx_pga_gain_range.stop() - rx_pga_gain_range.start())); - gain_word = uhd::clip(gain_word, 0, mrpgw); - switch(which){ - case 'A': - _ad9862_regs.rx_pga_a = gain_word; - this->send_reg(2); - return; - case 'B': - _ad9862_regs.rx_pga_b = gain_word; - this->send_reg(3); - return; - default: UHD_THROW_INVALID_CODE_PATH(); - } -} - -double usrp_e100_codec_ctrl_impl::get_rx_pga_gain(char which){ - int gain_word; - switch(which){ - case 'A': gain_word = _ad9862_regs.rx_pga_a; break; - case 'B': gain_word = _ad9862_regs.rx_pga_b; break; - default: UHD_THROW_INVALID_CODE_PATH(); - } - return (gain_word*(rx_pga_gain_range.stop() - rx_pga_gain_range.start())/mrpgw) + rx_pga_gain_range.start(); -} - -/*********************************************************************** - * Codec Control AUX ADC Methods - **********************************************************************/ -static double aux_adc_to_volts(boost::uint8_t high, boost::uint8_t low){ - return double((boost::uint16_t(high) << 2) | low)*3.3/0x3ff; -} - -double usrp_e100_codec_ctrl_impl::read_aux_adc(aux_adc_t which){ - switch(which){ - case AUX_ADC_A1: - _ad9862_regs.select_a = ad9862_regs_t::SELECT_A_AUX_ADC1; - this->send_reg(34); //start conversion and select mux - this->recv_reg(28); //read the value (2 bytes, 2 reads) - this->recv_reg(29); - return aux_adc_to_volts(_ad9862_regs.aux_adc_a1_9_2, _ad9862_regs.aux_adc_a1_1_0); - - case AUX_ADC_A2: - _ad9862_regs.select_a = ad9862_regs_t::SELECT_A_AUX_ADC2; - this->send_reg(34); //start conversion and select mux - this->recv_reg(26); //read the value (2 bytes, 2 reads) - this->recv_reg(27); - return aux_adc_to_volts(_ad9862_regs.aux_adc_a2_9_2, _ad9862_regs.aux_adc_a2_1_0); - - case AUX_ADC_B1: - _ad9862_regs.select_b = ad9862_regs_t::SELECT_B_AUX_ADC1; - this->send_reg(34); //start conversion and select mux - this->recv_reg(32); //read the value (2 bytes, 2 reads) - this->recv_reg(33); - return aux_adc_to_volts(_ad9862_regs.aux_adc_b1_9_2, _ad9862_regs.aux_adc_b1_1_0); - - case AUX_ADC_B2: - _ad9862_regs.select_b = ad9862_regs_t::SELECT_B_AUX_ADC2; - this->send_reg(34); //start conversion and select mux - this->recv_reg(30); //read the value (2 bytes, 2 reads) - this->recv_reg(31); - return aux_adc_to_volts(_ad9862_regs.aux_adc_b2_9_2, _ad9862_regs.aux_adc_b2_1_0); - } - UHD_THROW_INVALID_CODE_PATH(); -} - -/*********************************************************************** - * Codec Control AUX DAC Methods - **********************************************************************/ -void usrp_e100_codec_ctrl_impl::write_aux_dac(aux_dac_t which, double volts){ - //special case for aux dac d (aka sigma delta word) - if (which == AUX_DAC_D){ - boost::uint16_t dac_word = uhd::clip(boost::math::iround(volts*0xfff/3.3), 0, 0xfff); - _ad9862_regs.sig_delt_11_4 = boost::uint8_t(dac_word >> 4); - _ad9862_regs.sig_delt_3_0 = boost::uint8_t(dac_word & 0xf); - this->send_reg(42); - this->send_reg(43); - return; - } - - //calculate the dac word for aux dac a, b, c - boost::uint8_t dac_word = uhd::clip(boost::math::iround(volts*0xff/3.3), 0, 0xff); - - //setup a lookup table for the aux dac params (reg ref, reg addr) - typedef boost::tuple<boost::uint8_t*, boost::uint8_t> dac_params_t; - uhd::dict<aux_dac_t, dac_params_t> aux_dac_to_params = boost::assign::map_list_of - (AUX_DAC_A, dac_params_t(&_ad9862_regs.aux_dac_a, 36)) - (AUX_DAC_B, dac_params_t(&_ad9862_regs.aux_dac_b, 37)) - (AUX_DAC_C, dac_params_t(&_ad9862_regs.aux_dac_c, 38)) - ; - - //set the aux dac register - UHD_ASSERT_THROW(aux_dac_to_params.has_key(which)); - boost::uint8_t *reg_ref, reg_addr; - boost::tie(reg_ref, reg_addr) = aux_dac_to_params[which]; - *reg_ref = dac_word; - this->send_reg(reg_addr); -} - -/*********************************************************************** - * Codec Control SPI Methods - **********************************************************************/ -void usrp_e100_codec_ctrl_impl::send_reg(boost::uint8_t addr){ - boost::uint32_t reg = _ad9862_regs.get_write_reg(addr); - UHD_LOGV(often) << "codec control write reg: " << std::hex << reg << std::endl; - _iface->write_spi( - UE_SPI_SS_AD9862, - spi_config_t::EDGE_RISE, - reg, 16 - ); -} - -void usrp_e100_codec_ctrl_impl::recv_reg(boost::uint8_t addr){ - boost::uint32_t reg = _ad9862_regs.get_read_reg(addr); - UHD_LOGV(often) << "codec control read reg: " << std::hex << reg << std::endl; - boost::uint32_t ret = _iface->read_spi( - UE_SPI_SS_AD9862, - spi_config_t::EDGE_RISE, - reg, 16 - ); - UHD_LOGV(often) << "codec control read ret: " << std::hex << ret << std::endl; - _ad9862_regs.set_reg(addr, boost::uint16_t(ret)); -} - -/*********************************************************************** - * Codec Control Make - **********************************************************************/ -usrp_e100_codec_ctrl::sptr usrp_e100_codec_ctrl::make(usrp_e100_iface::sptr iface){ - return sptr(new usrp_e100_codec_ctrl_impl(iface)); -} |