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qeditor: introduce a new "RAM" backend, and refactor file backend

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Change-Id: Icfbbc01b83d3592041803387e35f5aa6fb0fa813
Reviewed-on: http://gerrit.rockbox.org/997
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
This commit is contained in:
Amaury Pouly 2014-09-30 15:51:02 +02:00
parent 4a711fee42
commit 1bcc4fc67b
2 changed files with 69 additions and 31 deletions
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60
utils/regtools/qeditor/backend.cpp
View file

@ -107,23 +107,14 @@ IoBackend *Backend::CreateHWStubIoBackend(HWStubDevice *dev)
#endif
/**
* FileIoBackend
* RamIoBackend
*/
FileIoBackend::FileIoBackend(const QString& filename, const QString& soc_name)
RamIoBackend::RamIoBackend(const QString& soc_name)
{
m_filename = filename;
m_soc = soc_name;
m_valid = false;
Reload();
}
QString FileIoBackend::GetSocName()
{
return m_soc;
}
bool FileIoBackend::ReadRegister(const QString& name, soc_word_t& value)
bool RamIoBackend::ReadRegister(const QString& name, soc_word_t& value)
{
if(m_map.find(name) == m_map.end())
return false;
@ -131,13 +122,45 @@ bool FileIoBackend::ReadRegister(const QString& name, soc_word_t& value)
return true;
}
void RamIoBackend::DeleteAll()
{
m_map.clear();
}
bool RamIoBackend::WriteRegister(const QString& name, soc_word_t value, WriteMode mode)
{
switch(mode)
{
case Write: m_map[name] = value; return true;
case Set: m_map[name] |= value; return true;
case Clear: m_map[name] &= ~value; return true;
case Toggle: m_map[name] ^= value; return true;
default: return false;
}
}
/**
* FileIoBackend
*/
FileIoBackend::FileIoBackend(const QString& filename, const QString& soc_name)
:RamIoBackend(soc_name)
{
m_filename = filename;
m_valid = false;
Reload();
}
bool FileIoBackend::Reload()
{
m_valid = false;
QFile file(m_filename);
if(!file.open(QIODevice::ReadOnly | QIODevice::Text))
return false;
m_map.clear();
DeleteAll();
QTextStream in(&file);
while(!in.atEnd())
@ -152,7 +175,7 @@ bool FileIoBackend::Reload()
if(key == "HW")
m_soc = line.mid(idx + 1).trimmed();
else if(ok)
m_map[key] = val;
RamIoBackend::WriteRegister(key, val, Write);
}
m_readonly = !QFileInfo(file).isWritable();
@ -164,14 +187,7 @@ bool FileIoBackend::Reload()
bool FileIoBackend::WriteRegister(const QString& name, soc_word_t value, WriteMode mode)
{
m_dirty = true;
switch(mode)
{
case Write: m_map[name] = value; return true;
case Set: m_map[name] |= value; return true;
case Clear: m_map[name] &= ~value; return true;
case Toggle: m_map[name] ^= value; return true;
default: return false;
}
return RamIoBackend::WriteRegister(name, value, mode);
}
bool FileIoBackend::Commit()

40
utils/regtools/qeditor/backend.h
View file

@ -102,9 +102,39 @@ public:
virtual bool Commit() { return false; }
};
/** The RAM backend doesn't have any backend storage and stores all values in
* an associative map */
class RamIoBackend : public IoBackend
{
Q_OBJECT
public:
RamIoBackend(const QString& soc_name = "");
virtual bool IsValid() { return m_soc != ""; }
virtual bool SupportAccess(AccessType type) { return type == ByName; }
virtual QString GetSocName() { return m_soc; }
virtual void SetSocName(const QString& soc_name) { m_soc = soc_name; }
virtual bool ReadRegister(const QString& name, soc_word_t& value);
virtual bool ReadRegister(soc_addr_t addr, soc_word_t& value)
{ Q_UNUSED(addr); Q_UNUSED(value); return false; }
virtual bool Reload() { return false; }
virtual bool IsReadOnly() { return false; }
virtual bool WriteRegister(const QString& name, soc_word_t value, WriteMode mode);
virtual bool WriteRegister(soc_addr_t addr, soc_word_t value, WriteMode mode)
{ Q_UNUSED(addr); Q_UNUSED(value); Q_UNUSED(mode); return false; }
virtual bool IsDirty() { return false; }
virtual bool Commit() { return false; }
/* clear all entries of the backend */
virtual void DeleteAll();
protected:
QString m_soc;
QMap< QString, soc_word_t > m_map;
};
/** NOTE the File backend makes a difference between writes and commits:
* a write will *never* touch the underlying file unless it was committed. */
class FileIoBackend : public IoBackend
class FileIoBackend : public RamIoBackend
{
Q_OBJECT
public:
@ -112,26 +142,18 @@ public:
virtual bool IsValid() { return m_valid; }
virtual bool SupportAccess(AccessType type) { return type == ByName; }
virtual QString GetSocName();
virtual bool ReadRegister(const QString& name, soc_word_t& value);
virtual bool ReadRegister(soc_addr_t addr, soc_word_t& value)
{ Q_UNUSED(addr); Q_UNUSED(value); return false; }
virtual bool Reload();
virtual bool IsReadOnly() { return m_readonly; }
virtual bool WriteRegister(const QString& name, soc_word_t value, WriteMode mode);
virtual bool WriteRegister(soc_addr_t addr, soc_word_t value, WriteMode mode)
{ Q_UNUSED(addr); Q_UNUSED(value); Q_UNUSED(mode); return false; }
virtual bool IsDirty() { return m_dirty; }
virtual bool Commit();
QString GetFileName() { return m_filename; }
protected:
QString m_filename;
QString m_soc;
bool m_readonly;
bool m_dirty;
bool m_valid;
QMap< QString, soc_word_t > m_map;
};
#ifdef HAVE_HWSTUB