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-rw-r--r--src/devices/imagedev/harddriv.h94
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diff --git a/src/devices/imagedev/harddriv.h b/src/devices/imagedev/harddriv.h
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+++ b/src/devices/imagedev/harddriv.h
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+// license:BSD-3-Clause
+// copyright-holders:Nathan Woods, Raphael Nabet, Miodrag Milanovic
+/*********************************************************************
+
+ harddriv.h
+
+ Interface to the CHD code
+
+*********************************************************************/
+
+#ifndef HARDDRIV_H
+#define HARDDRIV_H
+
+#include "harddisk.h"
+
+/***************************************************************************
+ TYPE DEFINITIONS
+***************************************************************************/
+
+// ======================> harddisk_image_device
+
+class harddisk_image_device : public device_t,
+ public device_image_interface
+{
+public:
+ // construction/destruction
+ harddisk_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~harddisk_image_device();
+
+ static void static_set_device_load(device_t &device, device_image_load_delegate callback) { downcast<harddisk_image_device &>(device).m_device_image_load = callback; }
+ static void static_set_device_unload(device_t &device, device_image_func_delegate callback) { downcast<harddisk_image_device &>(device).m_device_image_unload = callback; }
+ static void static_set_interface(device_t &device, const char *_interface) { downcast<harddisk_image_device &>(device).m_interface = _interface; }
+
+ // image-level overrides
+ virtual bool call_load();
+ virtual bool call_create(int create_format, option_resolution *create_args);
+ virtual void call_unload();
+ virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) { load_software_part_region(*this, swlist, swname, start_entry ); return TRUE; }
+
+ virtual iodevice_t image_type() const { return IO_HARDDISK; }
+
+ virtual bool is_readable() const { return 1; }
+ virtual bool is_writeable() const { return 1; }
+ virtual bool is_creatable() const { return 0; }
+ virtual bool must_be_loaded() const { return 0; }
+ virtual bool is_reset_on_load() const { return 0; }
+ virtual const char *image_interface() const { return m_interface; }
+ virtual const char *file_extensions() const { return "chd,hd"; }
+ virtual const option_guide *create_option_guide() const;
+
+ // specific implementation
+ hard_disk_file *get_hard_disk_file() { return m_hard_disk_handle; }
+ chd_file *get_chd_file();
+
+protected:
+ harddisk_image_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ // device-level overrides
+ virtual void device_config_complete();
+ virtual void device_start();
+ virtual void device_stop();
+
+ int internal_load_hd();
+
+ chd_file *m_chd;
+ chd_file m_origchd; /* handle to the original CHD */
+ chd_file m_diffchd; /* handle to the diff CHD */
+ hard_disk_file *m_hard_disk_handle;
+
+ device_image_load_delegate m_device_image_load;
+ device_image_func_delegate m_device_image_unload;
+ const char * m_interface;
+};
+
+// device type definition
+extern const device_type HARDDISK;
+
+/***************************************************************************
+ DEVICE CONFIGURATION MACROS
+***************************************************************************/
+
+#define MCFG_HARDDISK_ADD(_tag) \
+ MCFG_DEVICE_ADD(_tag, HARDDISK, 0)
+
+#define MCFG_HARDDISK_LOAD(_class,_method) \
+ harddisk_image_device::static_set_device_load(*device, device_image_load_delegate(&DEVICE_IMAGE_LOAD_NAME(_class,_method), #_class "::device_image_load_" #_method, downcast<_class *>(owner)));
+
+#define MCFG_HARDDISK_UNLOAD(_class,_method) \
+ harddisk_image_device::static_set_device_unload(*device, device_image_func_delegate(&DEVICE_IMAGE_UNLOAD_NAME(_class,_method), #_class "::device_image_unload_" #_method, downcast<_class *>(owner)));
+
+#define MCFG_HARDDISK_INTERFACE(_interface) \
+ harddisk_image_device::static_set_interface(*device, _interface);
+
+#endif /* HARDDRIV_H */