RASCSI/cpp/devices/device.cpp
Daniel Markstedt 08194af424
Move C++ code into cpp/ dir (#941)
- Moved C++ code to cpp/ from src/raspberrypi
- Related updates to Makefile, easyinstall.sh, and the github build rules
- Removed the native X68k C code in src/x68k from the repo
2022-10-25 12:59:30 -07:00

144 lines
2.7 KiB
C++

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