mirror of
https://github.com/holub/mame
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47dd9fe568
type safety. If legacy devices still use inline data, those types are not checked. However, new devices no longer have access to the generic m_inline_data. Instead their MDRV_* macros should map to calls to static functions in the device config class which downcast a generic device_config to the specific device config, and then set the appropriate values. This is not to be done inline in order to prevent further code bloat in the constructors. See eeprom/7474/i2cmem/okim6295 for examples. #ifdef'ed several unused machine driver definitions that weren't referenced.
409 lines
15 KiB
C
409 lines
15 KiB
C
/***************************************************************************
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devlegcy.c
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Legacy device helpers.
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****************************************************************************
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Copyright Aaron Giles
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name 'MAME' nor the names of its contributors may be
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used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#include "emu.h"
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#include "devlegcy.h"
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//**************************************************************************
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// LEGACY DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// legacy_device_config_base - constructor
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//-------------------------------------------------
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legacy_device_config_base::legacy_device_config_base(const machine_config &mconfig, device_type type, const char *tag, const device_config *owner, UINT32 clock, device_get_config_func get_config)
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: device_config(mconfig, type, "Legacy Device", tag, owner, clock),
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m_get_config_func(get_config),
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m_inline_config(NULL)
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{
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// allocate a buffer for the inline configuration
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UINT32 configlen = (UINT32)get_legacy_config_int(DEVINFO_INT_INLINE_CONFIG_BYTES);
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if (configlen != 0)
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m_inline_config = global_alloc_array_clear(UINT8, configlen);
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// set the proper name
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m_name = get_legacy_config_string(DEVINFO_STR_NAME);
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}
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//-------------------------------------------------
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// ~legacy_device_config_base - destructor
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//-------------------------------------------------
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legacy_device_config_base::~legacy_device_config_base()
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{
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global_free(m_inline_config);
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}
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//-------------------------------------------------
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// get_legacy_config_int - return a legacy
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// configuration parameter as an integer
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//-------------------------------------------------
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INT64 legacy_device_config_base::get_legacy_config_int(UINT32 state) const
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{
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deviceinfo info = { 0 };
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(*m_get_config_func)(this, state, &info);
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return info.i;
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}
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//-------------------------------------------------
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// get_legacy_config_ptr - return a legacy
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// configuration parameter as a pointer
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//-------------------------------------------------
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void *legacy_device_config_base::get_legacy_config_ptr(UINT32 state) const
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{
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deviceinfo info = { 0 };
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(*m_get_config_func)(this, state, &info);
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return info.p;
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}
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//-------------------------------------------------
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// get_legacy_config_fct - return a legacy
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// configuration parameter as a function pointer
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//-------------------------------------------------
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genf *legacy_device_config_base::get_legacy_config_fct(UINT32 state) const
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{
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deviceinfo info = { 0 };
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(*m_get_config_func)(this, state, &info);
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return info.f;
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}
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//-------------------------------------------------
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// get_legacy_config_string - return a legacy
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// configuration parameter as a string pointer
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//-------------------------------------------------
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const char *legacy_device_config_base::get_legacy_config_string(UINT32 state) const
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{
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deviceinfo info;
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info.s = get_temp_string_buffer();
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(*m_get_config_func)(this, state, &info);
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return info.s;
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}
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//-------------------------------------------------
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// static_set_inline32 - configuration helper to
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// set a 32-bit value in the inline configuration
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//-------------------------------------------------
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void legacy_device_config_base::static_set_inline32(device_config *device, UINT32 offset, UINT32 size, UINT32 value)
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{
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legacy_device_config_base *legacy = downcast<legacy_device_config_base *>(device);
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void *dest = reinterpret_cast<UINT8 *>(legacy->m_inline_config) + offset;
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if (size == 1)
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*reinterpret_cast<UINT8 *>(dest) = value;
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else if (size == 2)
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*reinterpret_cast<UINT16 *>(dest) = value;
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else if (size == 4)
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*reinterpret_cast<UINT32 *>(dest) = value;
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else
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throw emu_fatalerror("Unexpected size %d in legacy_device_config_base::static_set_inline32", size);
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}
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//-------------------------------------------------
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// static_set_inline64 - configuration helper to
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// set a 64-bit value in the inline configuration
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//-------------------------------------------------
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void legacy_device_config_base::static_set_inline64(device_config *device, UINT32 offset, UINT32 size, UINT64 value)
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{
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legacy_device_config_base *legacy = downcast<legacy_device_config_base *>(device);
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void *dest = reinterpret_cast<UINT8 *>(legacy->m_inline_config) + offset;
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if (size == 1)
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*reinterpret_cast<UINT8 *>(dest) = value;
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else if (size == 2)
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*reinterpret_cast<UINT16 *>(dest) = value;
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else if (size == 4)
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*reinterpret_cast<UINT32 *>(dest) = value;
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else if (size == 8)
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*reinterpret_cast<UINT64 *>(dest) = value;
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else
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throw emu_fatalerror("Unexpected size %d in legacy_device_config_base::static_set_inline64", size);
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}
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//-------------------------------------------------
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// static_set_inline_float - configuration helper
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// to set a floating-point value in the inline
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// configuration
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//-------------------------------------------------
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void legacy_device_config_base::static_set_inline_float(device_config *device, UINT32 offset, UINT32 size, float value)
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{
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legacy_device_config_base *legacy = downcast<legacy_device_config_base *>(device);
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void *dest = reinterpret_cast<UINT8 *>(legacy->m_inline_config) + offset;
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if (size == 4)
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*reinterpret_cast<float *>(dest) = value;
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else
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throw emu_fatalerror("Unexpected size %d in legacy_device_config_base::static_set_inline_float", size);
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}
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//-------------------------------------------------
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// device_validity_check - perform validity
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// checks on a device configuration
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//-------------------------------------------------
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bool legacy_device_config_base::device_validity_check(const game_driver &driver) const
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{
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device_validity_check_func validity_func = reinterpret_cast<device_validity_check_func>(get_legacy_config_fct(DEVINFO_FCT_VALIDITY_CHECK));
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if (validity_func != NULL)
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return (*validity_func)(&driver, this);
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return false;
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}
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//**************************************************************************
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// LIVE LEGACY DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// legacy_device_base - constructor
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//-------------------------------------------------
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legacy_device_base::legacy_device_base(running_machine &_machine, const device_config &config)
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: device_t(_machine, config),
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m_config(downcast<const legacy_device_config_base &>(config)),
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m_token(NULL)
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{
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int tokenbytes = m_config.get_legacy_config_int(DEVINFO_INT_TOKEN_BYTES);
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if (tokenbytes != 0)
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m_token = auto_alloc_array_clear(machine, UINT8, tokenbytes);
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}
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//-------------------------------------------------
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// ~legacy_device_base - destructor
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//-------------------------------------------------
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legacy_device_base::~legacy_device_base()
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{
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if (m_started)
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{
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device_stop_func stop_func = reinterpret_cast<device_stop_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_STOP));
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if (stop_func != NULL)
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(*stop_func)(this);
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}
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}
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//-------------------------------------------------
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// device_start - called to start up a device
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//-------------------------------------------------
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void legacy_device_base::device_start()
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{
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device_start_func start_func = reinterpret_cast<device_start_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_START));
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assert(start_func != NULL);
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(*start_func)(this);
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}
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//-------------------------------------------------
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// device_reset - called to reset a device
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//-------------------------------------------------
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void legacy_device_base::device_reset()
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{
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device_reset_func reset_func = reinterpret_cast<device_reset_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_RESET));
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if (reset_func != NULL)
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(*reset_func)(this);
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}
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//**************************************************************************
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// LEGACY SOUND DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// legacy_sound_device_config_base - constructor
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//-------------------------------------------------
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legacy_sound_device_config_base::legacy_sound_device_config_base(const machine_config &mconfig, device_type type, const char *tag, const device_config *owner, UINT32 clock, device_get_config_func get_config)
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: legacy_device_config_base(mconfig, type, tag, owner, clock, get_config),
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device_config_sound_interface(mconfig, *this)
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{
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}
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//**************************************************************************
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// LIVE LEGACY SOUND DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// legacy_sound_device_base - constructor
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//-------------------------------------------------
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legacy_sound_device_base::legacy_sound_device_base(running_machine &machine, const device_config &config)
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: legacy_device_base(machine, config),
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device_sound_interface(machine, config, *this)
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{
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}
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//**************************************************************************
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// LEGACY MEMORY DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// legacy_memory_device_config_base - constructor
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//-------------------------------------------------
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legacy_memory_device_config_base::legacy_memory_device_config_base(const machine_config &mconfig, device_type type, const char *tag, const device_config *owner, UINT32 clock, device_get_config_func get_config)
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: legacy_device_config_base(mconfig, type, tag, owner, clock, get_config),
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device_config_memory_interface(mconfig, *this)
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{
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memset(&m_space_config, 0, sizeof(m_space_config));
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}
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//-------------------------------------------------
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// device_config_complete - update configuration
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// based on completed device setup
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//-------------------------------------------------
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void legacy_memory_device_config_base::device_config_complete()
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{
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m_space_config.m_name = "memory";
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m_space_config.m_endianness = static_cast<endianness_t>(get_legacy_config_int(DEVINFO_INT_ENDIANNESS));
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m_space_config.m_databus_width = get_legacy_config_int(DEVINFO_INT_DATABUS_WIDTH);
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m_space_config.m_addrbus_width = get_legacy_config_int(DEVINFO_INT_ADDRBUS_WIDTH);
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m_space_config.m_addrbus_shift = get_legacy_config_int(DEVINFO_INT_ADDRBUS_SHIFT);
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m_space_config.m_logaddr_width = m_space_config.m_addrbus_width;
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m_space_config.m_page_shift = 0;
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m_space_config.m_internal_map = reinterpret_cast<address_map_constructor>(get_legacy_config_fct(DEVINFO_PTR_INTERNAL_MEMORY_MAP));
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m_space_config.m_default_map = reinterpret_cast<address_map_constructor>(get_legacy_config_fct(DEVINFO_PTR_DEFAULT_MEMORY_MAP));
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}
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//**************************************************************************
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// LIVE LEGACY MEMORY DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// legacy_memory_device_base - constructor
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//-------------------------------------------------
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legacy_memory_device_base::legacy_memory_device_base(running_machine &machine, const device_config &config)
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: legacy_device_base(machine, config),
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device_memory_interface(machine, config, *this)
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{
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}
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//**************************************************************************
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// LEGACY NVRAM DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// legacy_nvram_device_config_base - constructor
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//-------------------------------------------------
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legacy_nvram_device_config_base::legacy_nvram_device_config_base(const machine_config &mconfig, device_type type, const char *tag, const device_config *owner, UINT32 clock, device_get_config_func get_config)
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: legacy_device_config_base(mconfig, type, tag, owner, clock, get_config),
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device_config_nvram_interface(mconfig, *this)
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{
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}
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//**************************************************************************
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// LIVE LEGACY NVRAM DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// legacy_nvram_device_base - constructor
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//-------------------------------------------------
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legacy_nvram_device_base::legacy_nvram_device_base(running_machine &machine, const device_config &config)
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: legacy_device_base(machine, config),
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device_nvram_interface(machine, config, *this)
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{
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}
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//-------------------------------------------------
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// nvram_default - generate the default NVRAM
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//-------------------------------------------------
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void legacy_nvram_device_base::nvram_default()
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{
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device_nvram_func nvram_func = reinterpret_cast<device_nvram_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_NVRAM));
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(*nvram_func)(this, NULL, FALSE);
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}
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//-------------------------------------------------
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// nvram_read - read NVRAM from the given file
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//-------------------------------------------------
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void legacy_nvram_device_base::nvram_read(mame_file &file)
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{
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device_nvram_func nvram_func = reinterpret_cast<device_nvram_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_NVRAM));
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(*nvram_func)(this, &file, FALSE);
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}
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//-------------------------------------------------
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// nvram_write - write NVRAM to the given file
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//-------------------------------------------------
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void legacy_nvram_device_base::nvram_write(mame_file &file)
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{
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device_nvram_func nvram_func = reinterpret_cast<device_nvram_func>(m_config.get_legacy_config_fct(DEVINFO_FCT_NVRAM));
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(*nvram_func)(this, &file, TRUE);
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}
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