mirror of
https://github.com/akuker/RASCSI.git
synced 2026-10-25 12:02:59 +00:00
Daniel Markstedt
1ee4a320b8
Move GPIO mappings into a single module and select a board profile at process startup instead of at compile time: Build every GPIO-facing utility for every supported profile. At the same time, we remove support for the historical AIBOM board type since it's the only one using positive logic, the other three variants share the same electrical behavior. Run piscsi, scsimon, scsiloop, scsidump, or sasidump with -C=STANDARD, FULLSPEC, or GAMERNIUM. FULLSPEC remains the default. To select a profile for the systemd service, set PISCSI_CONNECTION_TYPE and restart the service.
92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Powered by XM6 TypeG Technology.
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// Copyright (C) 2016-2020 GIMONS
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include <array>
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#include <string>
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#include <string_view>
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#include <vector>
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enum class connection_type {
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standard,
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fullspec,
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gamernium,
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};
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struct connection_pins {
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int act;
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int enb;
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int ind;
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int tad;
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int dtd;
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std::array<int, 9> data;
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int atn;
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int rst;
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int ack;
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int req;
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int msg;
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int cd;
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int io;
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int bsy;
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int sel;
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};
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struct connection_profile {
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connection_type type;
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std::string_view name;
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std::string_view description;
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connection_pins pins;
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};
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extern const connection_profile* selected_connection_profile;
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inline const connection_profile& GetConnectionProfile()
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{
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return *selected_connection_profile;
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}
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const connection_profile* FindConnectionProfile(std::string_view);
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bool SetConnectionType(std::string_view, std::string&);
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bool ConfigureConnectionType(std::vector<char*>&, std::string&);
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// These aliases keep GPIO code focused on SCSI signals while the selected
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// profile supplies their BCM GPIO numbers at process startup.
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#define CONNECT_DESC (GetConnectionProfile().description)
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#define PIN_ACT (GetConnectionProfile().pins.act)
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#define PIN_ENB (GetConnectionProfile().pins.enb)
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#define PIN_IND (GetConnectionProfile().pins.ind)
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#define PIN_TAD (GetConnectionProfile().pins.tad)
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#define PIN_DTD (GetConnectionProfile().pins.dtd)
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#define PIN_DT0 (GetConnectionProfile().pins.data[0])
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#define PIN_DT1 (GetConnectionProfile().pins.data[1])
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#define PIN_DT2 (GetConnectionProfile().pins.data[2])
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#define PIN_DT3 (GetConnectionProfile().pins.data[3])
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#define PIN_DT4 (GetConnectionProfile().pins.data[4])
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#define PIN_DT5 (GetConnectionProfile().pins.data[5])
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#define PIN_DT6 (GetConnectionProfile().pins.data[6])
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#define PIN_DT7 (GetConnectionProfile().pins.data[7])
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#define PIN_DP (GetConnectionProfile().pins.data[8])
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#define PIN_ATN (GetConnectionProfile().pins.atn)
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#define PIN_RST (GetConnectionProfile().pins.rst)
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#define PIN_ACK (GetConnectionProfile().pins.ack)
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#define PIN_REQ (GetConnectionProfile().pins.req)
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#define PIN_MSG (GetConnectionProfile().pins.msg)
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#define PIN_CD (GetConnectionProfile().pins.cd)
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#define PIN_IO (GetConnectionProfile().pins.io)
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#define PIN_BSY (GetConnectionProfile().pins.bsy)
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#define PIN_SEL (GetConnectionProfile().pins.sel)
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#define ACT_ON true
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#define ENB_ON true
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#define IND_IN false
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#define TAD_IN false
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#define DTD_IN true
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