diff options
author | 2021-05-26 15:19:45 +0200 | |
---|---|---|
committer | 2021-05-26 19:15:31 +0200 | |
commit | 9add8034d2b92fe8cd876ab16c63831ce460e7e2 (patch) | |
tree | 5012a1ec8f5df8389a99805d9443351cb9653141 /src/lib/formats/fs_vtech.h | |
parent | ec2bec33c2e53dada0970411f3b897930516d284 (diff) |
vtech: Add floppy formats and fs
Diffstat (limited to 'src/lib/formats/fs_vtech.h')
-rw-r--r-- | src/lib/formats/fs_vtech.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/lib/formats/fs_vtech.h b/src/lib/formats/fs_vtech.h new file mode 100644 index 00000000000..0a73c15778d --- /dev/null +++ b/src/lib/formats/fs_vtech.h @@ -0,0 +1,96 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// Management of VTech images + +#ifndef MAME_FORMATS_FS_VTECH_H +#define MAME_FORMATS_FS_VTECH_H + +#pragma once + +#include "fsmgr.h" + +class fs_vtech : public filesystem_manager_t { +public: + class impl : public filesystem_t { + public: + class root_dir : public idir_t { + public: + root_dir(impl &i) : m_fs(i) {} + virtual ~root_dir() = default; + + virtual void drop_weak_references() override; + + virtual fs_meta_data metadata() override; + virtual void metadata_change(const fs_meta_data &info) override; + virtual std::vector<fs_dir_entry> contents() override; + virtual file_t file_get(uint64_t key) override; + virtual dir_t dir_get(uint64_t key) override; + virtual file_t file_create(const fs_meta_data &info) override; + virtual void file_delete(uint64_t key) override; + + void update_file(u16 key, const u8 *entry); + + private: + impl &m_fs; + + std::pair<fsblk_t::block_t, u32> get_dir_block(uint64_t key); + }; + + class file : public ifile_t { + public: + file(impl &fs, root_dir *dir, const u8 *entry, u16 key); + virtual ~file() = default; + + virtual void drop_weak_references() override; + + virtual fs_meta_data metadata() override; + virtual void metadata_change(const fs_meta_data &info) override; + virtual std::vector<u8> read_all() override; + virtual void replace(const std::vector<u8> &data) override; + + private: + impl &m_fs; + root_dir *m_dir; + u16 m_key; + u8 m_entry[18]; + }; + + impl(fsblk_t &blockdev); + virtual ~impl() = default; + + virtual void format(const fs_meta_data &meta) override; + virtual fs_meta_data metadata() override; + virtual void metadata_change(const fs_meta_data &info) override; + virtual dir_t root() override; + + void drop_root_ref(); + + std::vector<std::pair<u8, u8>> allocate_blocks(u32 count); + void free_blocks(const std::vector<std::pair<u8, u8>> &blocks); + u32 free_block_count(); + + private: + dir_t m_root; + }; + + fs_vtech() : filesystem_manager_t() {} + + virtual const char *name() const override; + virtual const char *description() const override; + + virtual void enumerate_f(floppy_enumerator &fe, uint32_t form_factor, const std::vector<uint32_t> &variants) const override; + virtual std::unique_ptr<filesystem_t> mount(fsblk_t &blockdev) const override; + + virtual bool can_format() const override; + virtual bool can_read() const override; + virtual bool can_write() const override; + virtual bool has_rsrc() const override; + + virtual std::vector<fs_meta_description> volume_meta_description() const override; + virtual std::vector<fs_meta_description> file_meta_description() const override; +}; + +extern const fs_vtech FS_VTECH; + +#endif |