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Diffstat (limited to 'src/emu/dinvram.h')
-rw-r--r-- | src/emu/dinvram.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/emu/dinvram.h b/src/emu/dinvram.h new file mode 100644 index 00000000000..b31edd4eda8 --- /dev/null +++ b/src/emu/dinvram.h @@ -0,0 +1,97 @@ +/*************************************************************************** + + dinvram.h + + Device NVRAM interfaces. + +**************************************************************************** + + Copyright Aaron Giles + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name 'MAME' nor the names of its contributors may be + used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +***************************************************************************/ + +#pragma once + +#ifndef __EMU_H__ +#error Dont include this file directly; include emu.h instead. +#endif + +#ifndef __DINVRAM_H__ +#define __DINVRAM_H__ + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + + +// ======================> device_config_nvram_interface + +// class representing interface-specific configuration nvram +class device_config_nvram_interface : public device_config_interface +{ +public: + // construction/destruction + device_config_nvram_interface(const machine_config &mconfig, device_config &device); + virtual ~device_config_nvram_interface(); +}; + + + +// ======================> device_nvram_interface + +// class representing interface-specific live nvram +class device_nvram_interface : public device_interface +{ +public: + // construction/destruction + device_nvram_interface(running_machine &machine, const device_config &config, device_t &device); + virtual ~device_nvram_interface(); + + // configuration access + const device_config_nvram_interface &nvram_config() const { return m_nvram_config; } + + // public accessors... for now + void nvram_reset() { nvram_default(); } + void nvram_load(mame_file &file) { nvram_read(file); } + void nvram_save(mame_file &file) { nvram_write(file); } + +protected: + // derived class overrides + virtual void nvram_default() = 0; + virtual void nvram_read(mame_file &file) = 0; + virtual void nvram_write(mame_file &file) = 0; + + // configuration + const device_config_nvram_interface &m_nvram_config; // reference to our device_config_execute_interface +}; + + +#endif /* __DINVRAM_H__ */ |