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.
135 lines
6.1 KiB
C++
135 lines
6.1 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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#include "hal/connection_profile.h"
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#include <algorithm>
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#include <cctype>
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#include <iterator>
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using namespace std;
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namespace
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{
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const connection_profile standard_profile = {.type = connection_type::standard,
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.name = "STANDARD",
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.description = "STANDARD",
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.pins = {.act = 4,
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.enb = 5,
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.ind = -1,
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.tad = -1,
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.dtd = -1,
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.data = {10, 11, 12, 13, 14, 15, 16, 17, 18},
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.atn = 19,
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.rst = 20,
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.ack = 21,
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.req = 22,
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.msg = 23,
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.cd = 24,
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.io = 25,
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.bsy = 26,
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.sel = 27}};
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const connection_profile fullspec_profile = {.type = connection_type::fullspec,
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.name = "FULLSPEC",
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.description = "FULLSPEC",
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.pins = {.act = 4,
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.enb = 5,
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.ind = 6,
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.tad = 7,
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.dtd = 8,
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.data = {10, 11, 12, 13, 14, 15, 16, 17, 18},
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.atn = 19,
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.rst = 20,
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.ack = 21,
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.req = 22,
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.msg = 23,
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.cd = 24,
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.io = 25,
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.bsy = 26,
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.sel = 27}};
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const connection_profile gamernium_profile = {.type = connection_type::gamernium,
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.name = "GAMERNIUM",
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.description = "GAMERnium.com version",
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.pins = {.act = 14,
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.enb = 6,
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.ind = 7,
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.tad = 8,
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.dtd = 5,
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.data = {21, 26, 20, 19, 16, 13, 12, 11, 25},
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.atn = 10,
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.rst = 22,
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.ack = 24,
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.req = 15,
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.msg = 17,
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.cd = 18,
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.io = 4,
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.bsy = 27,
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.sel = 23}};
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const array<const connection_profile*, 3> profiles = {&standard_profile, &fullspec_profile, &gamernium_profile};
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string ToUpper(string_view value)
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{
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string result(value);
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ranges::transform(result, result.begin(), [](unsigned char c) { return static_cast<char>(toupper(c)); });
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return result;
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}
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} // namespace
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const connection_profile* selected_connection_profile = &fullspec_profile;
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const connection_profile* FindConnectionProfile(string_view value)
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{
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const string name = ToUpper(value);
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const auto it =
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ranges::find_if(profiles, [&name](const connection_profile* profile) { return profile->name == name; });
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return it == profiles.end() ? nullptr : *it;
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}
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bool SetConnectionType(string_view value, string& error)
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{
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if (const auto* profile = FindConnectionProfile(value); profile != nullptr) {
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selected_connection_profile = profile;
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return true;
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}
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error = "Invalid connection type '" + string(value) + "'. Supported types are STANDARD, FULLSPEC, and GAMERNIUM";
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return false;
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}
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bool ConfigureConnectionType(vector<char*>& args, string& error)
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{
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for (auto it = args.begin() + 1; it != args.end();) {
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const string_view option(*it);
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string_view value;
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if (option == "-C") {
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const auto value_it = next(it);
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if (value_it == args.end()) {
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error = "Missing value for -C";
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return false;
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}
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value = *value_it;
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it = args.erase(it, next(value_it));
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} else {
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++it;
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continue;
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}
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if (!SetConnectionType(value, error)) {
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return false;
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}
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}
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return true;
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}
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