121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
/*******************************************************************************
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* Copyright (C) 2018 MINRES Technologies GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*******************************************************************************/
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#ifndef _SYSC_TOP_MCP3008_H_
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#define _SYSC_TOP_MCP3008_H_
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#include "cci_configuration"
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#include "tlm/scc/signal_initiator_mixin.h"
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#include "tlm/scc/signal_target_mixin.h"
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#include "sysc/tlm_extensions.h"
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#include <sysc/kernel/sc_module.h>
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#include <sysc/utils/sc_vector.h>
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#include <tlm/scc/tlm_signal.h>
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namespace sysc {
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class mcp_adc : public sc_core::sc_module {
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public:
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template <typename TYPE>
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static std::unique_ptr<mcp_adc> create(sc_core::sc_module_name nm);
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tlm::scc::tlm_signal_logic_in sck_i;
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tlm::scc::tlm_signal_logic_out miso_o;
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tlm::scc::tlm_signal_logic_in mosi_i;
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tlm::scc::tlm_signal_logic_in cs_i;
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sc_core::sc_in<double> vref_i;
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sc_core::sc_vector<sc_core::sc_in<double>> ch_i;
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mcp_adc(mcp_adc &other) = delete;
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mcp_adc(mcp_adc &&other) = delete;
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mcp_adc &operator=(mcp_adc &other) = delete;
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mcp_adc &operator=(mcp_adc &&other) = delete;
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~mcp_adc() override = default;
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protected:
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mcp_adc(sc_core::sc_module_name nm, size_t channel_no)
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: sc_core::sc_module(nm)
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, NAMED(sck_i)
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, NAMED(miso_o)
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, NAMED(mosi_i)
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, NAMED(cs_i)
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, NAMED(vref_i)
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, NAMED(ch_i, channel_no) {}
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};
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class mcp_3008 : public mcp_adc {
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public:
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SC_HAS_PROCESS(mcp_3008);// NOLINT
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mcp_3008(sc_core::sc_module_name nm);
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~mcp_3008() override = default;
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private:
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tlm::tlm_sync_enum receive(tlm::scc::tlm_signal_gp<sc_dt::sc_logic> &, tlm::tlm_phase &, sc_core::sc_time &);
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void do_conversion();
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unsigned idx, rx_bits;
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std::array<uint8_t, 3> rx_bytes, tx_bytes;
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sc_dt::sc_logic mosi_v, miso_v, cs_v;
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sysc::tlm_signal_spi_extension *ext, tx_ext;
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sc_core::sc_time last_tx_start;
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};
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class mcp_3208 : public mcp_adc {
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public:
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SC_HAS_PROCESS(mcp_3208);// NOLINT
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mcp_3208(sc_core::sc_module_name nm);
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~mcp_3208() override = default;
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private:
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tlm::tlm_sync_enum receive(tlm::scc::tlm_signal_gp<sc_dt::sc_logic> &, tlm::tlm_phase &, sc_core::sc_time &);
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void sample_inputs();
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void do_conversion();
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unsigned idx, rx_bits, byte_offs, bit_offs;
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std::array<uint8_t, 3> rx_bytes, tx_bytes;
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sc_dt::sc_logic mosi_v, sck_v, cs_v;
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sysc::tlm_signal_spi_extension *ext, tx_ext;
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sc_core::sc_time last_tx_start;
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sc_core::sc_event clk_sample_evt;
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};
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} /* namespace sysc */
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#endif /* _SYSC_TOP_MCP3008_H_ */
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