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Diffstat (limited to 'src/mame/drivers/pv9234.cpp')
-rw-r--r-- | src/mame/drivers/pv9234.cpp | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/mame/drivers/pv9234.cpp b/src/mame/drivers/pv9234.cpp new file mode 100644 index 00000000000..339492d7874 --- /dev/null +++ b/src/mame/drivers/pv9234.cpp @@ -0,0 +1,170 @@ +// license:BSD-3-Clause +// copyright-holders:Angelo Salese +/*************************************************************************** + +PowerVu D9234 STB (c) 1997 Scientific Atlanta + +20-mar-2010 skeleton driver + +http://www.vetrun.net/forums/showthread.php?t=395 +http://colibri.net63.net/powervu.htm +http://www.growl.de/d9234/ + +Google 'powervu 9234' for plenty more info. + +Meant for payTV providers to decrypt signals from the satellite and pump +them out on a local cable network. The powervu encryption is very secure. + +There is a menu system, and with the right equipment, many secrets can +be found! + +****************************************************************************/ + +#include "emu.h" +#include "cpu/arm7/arm7.h" + + +class pv9234_state : public driver_device +{ +public: + pv9234_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_p_ram(*this, "p_ram"), + m_maincpu(*this, "maincpu") { } + + DECLARE_WRITE32_MEMBER(debug_w); + DECLARE_WRITE32_MEMBER(debug1_w); + DECLARE_WRITE32_MEMBER(debug2_w); + required_shared_ptr<UINT32> m_p_ram; + virtual void machine_reset(); + virtual void video_start(); + UINT32 screen_update_pv9234(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + required_device<cpu_device> m_maincpu; +}; + + +/* +This is the serial output to a terminal, used for debugging. +The boot process goes something like this: + +Start + +Config: 0x00001080 (Max Config: 00003C80) +MV 00000004.00000003 +DL Avail +IOP Com. O.K. 00000004 +Check CRC ... +CRC O.K. +Launch App +************** +* Ver 2.05 * +************** +Compiled by: FURLANO +Date & time: Nov 3 1997, 15:34:29 +All printing enabled. Press space bar to toggle on/off. +Time stamping enabled. Press 't' to turn on/off. +Press 'o' to toggle printing of MPEG Xport error messages. +*/ +WRITE32_MEMBER( pv9234_state::debug_w ) +{ + if (data) + { + printf("%02x %c\n",data,data); // this prints 'Start' to the console. + logerror("debug=%02x %c\n",data,data); + } +} + +WRITE32_MEMBER( pv9234_state::debug1_w ) +{ + UINT8 i,j; + if (data) + { + for (i = 0; i < 4; i++) + { + j = (data & 0xff000000) >> 24; + data <<= 8; +// printf("%c",j); // this prints 'OFF' to the console. + logerror("debug1=%02x %c\n",j,j); + } +// printf("\n"); + } +} + +WRITE32_MEMBER( pv9234_state::debug2_w ) +{ + if (data) + logerror("debug2=%02x\n",data); // ignore the huge amount of zeroes here +} + +static ADDRESS_MAP_START(pv9234_map, AS_PROGRAM, 32, pv9234_state) + // AM_RANGE(0x00000000, 0x00000033) AM_WRITE something + // AM_RANGE(0x00000044, 0x00000047) AM_WRITE something + // AM_RANGE(0x00000060, 0x0000006b) AM_WRITE something + // AM_RANGE(0x00007000, 0x00007003) AM_WRITE something + // AM_RANGE(0x00008000, 0x00008003) AM_WRITE something + AM_RANGE(0x00008014, 0x00008017) AM_WRITE(debug1_w) + // AM_RANGE(0x00008020, 0x00008027) AM_WRITE something + AM_RANGE(0x000080c0, 0x000080c3) AM_WRITE(debug2_w) + AM_RANGE(0x000080cc, 0x000080cf) AM_WRITE(debug_w) + // AM_RANGE(0x000080d0, 0x000080d3) AM_WRITE something + AM_RANGE(0x0003e000, 0x0003efff) AM_RAM AM_SHARE("p_ram") + AM_RANGE(0x00000000, 0x0007ffff) AM_ROM AM_REGION("maincpu",0) //FLASH ROM! + AM_RANGE(0x00080000, 0x00087fff) AM_MIRROR(0x78000) AM_RAM AM_SHARE("share1")//mirror is a guess, writes a prg at 0xc0200 then it jumps at b0200 (!) + AM_RANGE(0xe0000000, 0xe0007fff) AM_MIRROR(0x0fff8000) AM_RAM AM_SHARE("share1") + AM_RANGE(0xffffff00, 0xffffffff) AM_RAM //i/o? stack ram? +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( pv9234 ) +INPUT_PORTS_END + + +void pv9234_state::machine_reset() +{ + int i; + + for(i=0;i<0x1000/4;i++) + m_p_ram[i] = 0; +} + +void pv9234_state::video_start() +{ +} + +UINT32 pv9234_state::screen_update_pv9234(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + return 0; +} + +static MACHINE_CONFIG_START( pv9234, pv9234_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", ARM7, 4915000) //probably a more powerful clone. + MCFG_CPU_PROGRAM_MAP(pv9234_map) + + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(640, 480) + MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1) + MCFG_SCREEN_UPDATE_DRIVER(pv9234_state, screen_update_pv9234) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") + +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( pv9234 ) + ROM_REGION32_LE( 0x80000, "maincpu", ROMREGION_ERASE00 ) + ROM_LOAD16_BYTE( "u19.bin", 0x00000, 0x20000, CRC(1e06b0c8) SHA1(f8047f7127919e73675375578bb9fcc0eed2178e)) + ROM_LOAD16_BYTE( "u18.bin", 0x00001, 0x20000, CRC(924487dd) SHA1(fb1d7c9a813ded8c820589fa85ae72265a0427c7)) + ROM_LOAD16_BYTE( "u17.bin", 0x40000, 0x20000, CRC(cac03650) SHA1(edd8aec6fed886d47de39ed4e127de0a93250a45)) + ROM_LOAD16_BYTE( "u16.bin", 0x40001, 0x20000, CRC(bd07d545) SHA1(90a63af4ee82b0f7d0ed5f0e09569377f22dd98c)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +SYST( 1997, pv9234, 0, 0, pv9234, pv9234, driver_device, 0, "Scientific Atlanta", "PowerVu D9234", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |