mirror of https://github.com/akuker/RASCSI.git
148 lines
2.8 KiB
C++
148 lines
2.8 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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// Copyright (C) 2021-2022 Uwe Seimet
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//
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//---------------------------------------------------------------------------
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#include "shared/piscsi_version.h"
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#include "device.h"
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#include <cassert>
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#include <sstream>
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#include <iomanip>
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using namespace std;
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Device::Device(PbDeviceType type, int lun) : type(type), lun(lun)
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{
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ostringstream os;
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os << setw(2) << setfill('0') << piscsi_major_version << setw(2) << setfill('0') << piscsi_minor_version;
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revision = os.str();
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}
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void Device::Reset()
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{
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locked = false;
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attn = false;
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reset = false;
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}
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void Device::SetProtected(bool b)
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{
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if (protectable && !read_only) {
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write_protected = b;
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}
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}
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void Device::SetVendor(const string& v)
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{
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if (v.empty() || v.length() > 8) {
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throw invalid_argument("Vendor '" + v + "' must be between 1 and 8 characters");
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}
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vendor = v;
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}
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void Device::SetProduct(const string& p, bool force)
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{
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if (p.empty() || p.length() > 16) {
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throw invalid_argument("Product '" + p + "' must be between 1 and 16 characters");
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}
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// Changing vital product data is not SCSI compliant
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if (!product.empty() && !force) {
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return;
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}
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product = p;
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}
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void Device::SetRevision(const string& r)
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{
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if (r.empty() || r.length() > 4) {
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throw invalid_argument("Revision '" + r + "' must be between 1 and 4 characters");
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}
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revision = r;
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}
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string Device::GetPaddedName() const
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{
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ostringstream os;
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os << left << setfill(' ') << setw(8) << vendor << setw(16) << product << setw(4) << revision;
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const string name = os.str();
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assert(name.length() == 28);
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return name;
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}
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string Device::GetParam(const string& key) const
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{
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const auto& it = params.find(key);
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return it == params.end() ? "" : it->second;
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}
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void Device::SetParams(const unordered_map<string, string>& set_params)
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{
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params = default_params;
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// Devices with image file support implicitly support the "file" parameter
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if (SupportsFile()) {
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params["file"] = "";
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}
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for (const auto& [key, value] : set_params) {
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// It is assumed that there are default parameters for all supported parameters
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if (params.find(key) != params.end()) {
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params[key] = value;
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}
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else {
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LOGWARN("%s", string("Ignored unknown parameter '" + key + "'").c_str())
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}
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}
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}
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bool Device::Start()
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{
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if (!ready) {
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return false;
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}
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stopped = false;
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return true;
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}
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void Device::Stop()
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{
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ready = false;
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attn = false;
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stopped = true;
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status_code = 0;
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}
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bool Device::Eject(bool force)
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{
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if (!ready || !removable) {
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return false;
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}
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// Must be unlocked if there is no force flag
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if (!force && locked) {
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return false;
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}
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ready = false;
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attn = false;
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removed = true;
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write_protected = false;
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locked = false;
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stopped = true;
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return true;
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}
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