mirror of https://github.com/akuker/RASCSI.git
180 lines
3.3 KiB
C++
180 lines
3.3 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI (*^..^*)
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// for Raspberry Pi
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//
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// Copyright (C) 2021 Uwe Seimet
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//
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//---------------------------------------------------------------------------
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#include <cassert>
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#include "rascsi_version.h"
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#include "os.h"
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#include "log.h"
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#include "exceptions.h"
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#include "device.h"
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set<Device *> Device::devices;
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Device::Device(const string& type)
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{
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assert(type.length() == 4);
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devices.insert(this);
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this->type = type;
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vendor = DEFAULT_VENDOR;
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char rev[5];
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sprintf(rev, "%02d%02d", rascsi_major_version, rascsi_minor_version);
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revision = rev;
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ready = false;
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reset = false;
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attn = false;
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supported_luns = 32;
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protectable = false;
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write_protected = false;
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read_only = false;
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stoppable = false;
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stopped = false;
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removable = false;
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removed = false;
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lockable = false;
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locked = false;
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block_size_configurable = false;
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supports_params = false;
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id = 0;
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lun = 0;
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status_code = STATUS_NOERROR;
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}
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Device::~Device()
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{
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devices.erase(this);
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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 write_protected)
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{
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if (!read_only) {
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this->write_protected = write_protected;
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}
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}
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void Device::SetVendor(const string& vendor)
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{
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if (vendor.empty() || vendor.length() > 8) {
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throw illegal_argument_exception("Vendor '" + vendor + "' must be between 1 and 8 characters");
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}
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this->vendor = vendor;
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}
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void Device::SetProduct(const string& product, bool force)
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{
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// Changing the device name is not SCSI compliant
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if (!this->product.empty() && !force) {
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return;
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}
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if (product.empty() || product.length() > 16) {
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throw illegal_argument_exception("Product '" + product + "' must be between 1 and 16 characters");
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}
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this->product = product;
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}
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void Device::SetRevision(const string& revision)
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{
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if (revision.empty() || revision.length() > 4) {
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throw illegal_argument_exception("Revision '" + revision + "' must be between 1 and 4 characters");
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}
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this->revision = revision;
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}
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const string Device::GetPaddedName() const
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{
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string name = vendor;
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name.append(8 - vendor.length(), ' ');
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name += product;
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name.append(16 - product.length(), ' ');
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name += revision;
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name.append(4 - revision.length(), ' ');
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assert(name.length() == 28);
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return name;
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}
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const string Device::GetParam(const string& key)
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{
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return params.find(key) != params.end() ? params[key] : "";
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}
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void Device::SetParams(const map<string, string>& params)
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{
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this->params = GetDefaultParams();
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for (const auto& param : params) {
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this->params[param.first] = param.second;
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}
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}
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void Device::SetStatusCode(int status_code)
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{
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if (status_code) {
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LOGDEBUG("Error status: Sense Key $%02X, ASC $%02X, ASCQ $%02X", status_code >> 16, (status_code >> 8 &0xff), status_code & 0xff);
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}
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this->status_code = status_code;
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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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}
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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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