/*************************************************************************** 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 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 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", GAME_NOT_WORKING | GAME_NO_SOUND)