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Skeleton driver for the LG GP40NW10 USB DVD writer [O. Galibert]

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It is (was?) an inexpensive dvd writer.  I started this driver to see
if it was possible to add commands for really raw reading.  Let's just
say that mcs51 code is a pain to read.

If it ever works, it can be interesting as a USB device for when we
end up insane enough to try to handle USB in the first place.
This commit is contained in:
Olivier Galibert 2015-09-18 09:17:18 +02:00
parent ecdbd22320
commit 8d1b766ca7
3 changed files with 43 additions and 0 deletions
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1
scripts/target/mame/mess.lua
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@ -2671,6 +2671,7 @@ files {
MAME_DIR .. "src/mess/drivers/konin.c", MAME_DIR .. "src/mess/drivers/konin.c",
MAME_DIR .. "src/mess/drivers/leapster.c", MAME_DIR .. "src/mess/drivers/leapster.c",
MAME_DIR .. "src/mess/drivers/lft.c", MAME_DIR .. "src/mess/drivers/lft.c",
MAME_DIR .. "src/mess/drivers/lg-dvd.c",
MAME_DIR .. "src/mess/drivers/lola8a.c", MAME_DIR .. "src/mess/drivers/lola8a.c",
MAME_DIR .. "src/mess/drivers/m79152pc.c", MAME_DIR .. "src/mess/drivers/m79152pc.c",
MAME_DIR .. "src/mess/drivers/mccpm.c", MAME_DIR .. "src/mess/drivers/mccpm.c",

1
src/mame/mess.lst
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@ -2740,3 +2740,4 @@ bitgrphb
tvgame tvgame
aussieby aussieby
hp_ipc hp_ipc
lggp40

41
src/mess/drivers/lg-dvd.c Normal file
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@ -0,0 +1,41 @@
/*
Rather skeleton driver for a LG GP40NW10 usb dvd writer.
Main cpu, a MT1839, seems to be a mcs51 variant.
*/
#include "emu.h"
#include "debugger.h"
#include "cpu/mcs51/mcs51.h"
class lg_dvd_state : public driver_device {
public:
lg_dvd_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
maincpu(*this, "maincpu")
{ }
required_device<i80c52_device> maincpu;
};
static INPUT_PORTS_START( lg )
INPUT_PORTS_END
static ADDRESS_MAP_START( lg_dvd_map, AS_PROGRAM, 8, lg_dvd_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_REGION("maincpu", 0)
ADDRESS_MAP_END
static MACHINE_CONFIG_START( lg, lg_dvd_state )
MCFG_CPU_ADD( "maincpu", I80C52, XTAL_16MHz )
MCFG_CPU_PROGRAM_MAP( lg_dvd_map )
MACHINE_CONFIG_END
ROM_START( lggp40 )
ROM_REGION( 0x100000, "maincpu", 0 )
ROM_SYSTEM_BIOS( 0, "bios0", "1.00" )
ROMX_LOAD( "firm-1.00.bin", 0x000000, 0x100000, CRC(c7f24f3b) SHA1(c2ce96c02ab419fb7e0b38703cdaeeccb2b7f34b), ROM_BIOS(1) )
ROM_SYSTEM_BIOS( 1, "bios1", "1.01" )
ROMX_LOAD( "firm-1.01.bin", 0x000000, 0x100000, CRC(28820e0c) SHA1(c5f2c1e14e6cff2e57c5196cabcebfaaff7284ce), ROM_BIOS(2) )
ROM_END
SYST( 2011, lggp40, 0, 0, lg, lg, driver_device, 0, "LG", "GP40NW10 dvd writer", MACHINE_NOT_WORKING|MACHINE_NO_SOUND_HW )