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Diffstat (limited to 'src/devices/bus/isa/aha1542c.cpp')
-rw-r--r-- | src/devices/bus/isa/aha1542c.cpp | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/src/devices/bus/isa/aha1542c.cpp b/src/devices/bus/isa/aha1542c.cpp new file mode 100644 index 00000000000..efb8181061c --- /dev/null +++ b/src/devices/bus/isa/aha1542c.cpp @@ -0,0 +1,323 @@ +// license:BSD-3-Clause +// copyright-holders:Darkstar +/********************************************************************** + * + * Adaptec AHA-1542{C,CF,CP} SCSI Controller + * + **********************************************************************/ + +/* +Hardware info by Guru + +Adaptec 1993 + +PCB Layout +---------- + +Adaptec AHA-1542CF/1542CF +FCC ID: FGT1542CF +FAB 545107-00 REV C +ASSY 545106-00 + +|-------|---------------|---|-------------------|--| +| J1 | FLOPPY34 | | SCSI50 | | +| |---------------| |-------------------| | +| S1 DS1 | +| | +| |------| DS2107AS DS2107AS |--| +| |PC8477| 24MHz Z84C0010 | | +| PAL |BV-1 | |S | +| | | |----------| | | +| |------| | | |C | +| 93C46.U11 20MHz | | | | +| UM6264 MCODE.U15 |ADAPTEC | |S | +| |AIC-7970Q | | | +| BIOS.U16 | | |I | +| | | | | +| |----------| |--| +| | +|-| |--| |----| + |--------------| |-------------------------| + +Notes: + J1 - 4-position header for drive activity external LED connection + S1 - 8-position DIP Switch (See Table A) + PC8477BV-1 - National Semiconductor PC8477BV-1 'SuperFDC' Advanced Floppy Disk Controller (PLCC68) + This is software compatible with NEC uPD765 and pin compatible with Intel 82077AA + Labelled "AHA-1542CF/552800-01 F/9513" + Clock input 24.000MHz + SCSI - 50-pin Centronics style external SCSI connector (DDK 57AE-40500-21D) + Z84C0010 - Zilog Z84C0010VEC Z80 CPU. Clock input 20/2 [10.000MHz] sourced from AIC-7970Q (PLCC44) + 93C46.U11 - Atmel 93C46 128b x8-bit / 64b x16-bit (1kB) EEPROM labelled '545120A' (SOIC8) + 6264 - Unicorn Microelectronics UM6264BM-10L 8k x8-bit Static RAM (SOJ28) + MCODE.U15 - ST Microelectronics M27C256B 32k x8-bit EPROM labelled 'ADAPTEC INC 553801-00 E MCODE 4B81' (DIP28) + BIOS.U16 - ST Microelectronics M27C256B 32k x8-bit EPROM labelled 'ADAPTEC INC 553601-00 E BIOS 7600' (DIP28) + BIOS 0x7600h is revision 2.10 + PAL - AMD PALCE16V8H-15JC/4 PAL (SOJ20) + AIC-7970Q - Adaptec AIC-7970Q Fast SCSI Controller IC. Clock input 20.000MHz (QFP144) + DS2107AS - Dallas DS2107AS SCSI Active Terminator (SOIC16) + DS1 - Internal Drive Activity LED + SCSI50 - 50-pin Right Angled Flat Cable Connector With Support For Up To 7 SCSI Drives + FLOPPY34 - 34-pin Right Angled Flat Cable Connector With Support For Up To 2 Floppy Drives (360kb,720kb,1.2MB,1.44MB) + + +Table A - S1 DIP Switch Description +----------------------------------- + +Default: All DIP Switches OFF (i.e. Settings changed via BIOS and saved in EEPROM) +Software Defaults = * +----------------------+-----+-----+-----+-----+-----+-----+-----+-----+ + | SW1 | SW2 | SW3 | SW4 | SW5 | SW6 | SW7 | SW8 | +----------------------|-----+-----+-----+-----+-----+-----+-----+-----+ +Termination Enabled | ON | | | | | | | | + Set In BIOS*| OFF | | | | | | | | +----------------------+-----+-----+-----+-----+ | | | | +I/O Port 330H*| | OFF | OFF | OFF | | | | | + 334H | | ON | OFF | OFF | | | | | + 230H | | OFF | ON | OFF | | | | | + 234H | | ON | ON | OFF | | | | | + 130H | | OFF | OFF | ON | | | | | + 134H | | ON | OFF | ON | | | | | + Reserved | | OFF | ON | ON | | | | | + Reserved | | ON | ON | ON | | | | | +----------------------+-----+-----+-----+-----+-----+ | | | +Enable Floppy Yes*| | OFF | | | | + No | | ON | | | | +----------------------+-----------------------+-----+-----+-----+-----+ +BIOS Address DC000H*| | OFF | OFF | OFF | + D8000H | | ON | OFF | OFF | + D4000H | | OFF | ON | OFF | + D0000H | | ON | ON | OFF | + CC000H | | OFF | OFF | ON | + C8000H | | ON | OFF | ON | + Reserved | | OFF | ON | ON | + BIOS Disabled | | ON | ON | ON | +----------------------+-----------------------------+-----+-----+-----+ + +Documentation: +Adaptec AHA-1540CF/1542CF Installation Guide +http://download.adaptec.com/pdfs/installation_guides/aha1540cf_ig.pdf + */ + +#include "emu.h" +#include "aha1542c.h" +#include "cpu/z80/z80.h" + +// I/O Port interface +// READ Port x+0: STATUS +// WRITE Port x+0: CONTROL +// +// READ Port x+1: DATA +// WRITE Port x+1: COMMAND +// +// READ Port x+2: INTERRUPT STATUS +// WRITE Port x+2: (undefined?) +// +// R/W Port x+3: (undefined) + +// READ STATUS flags +#define STAT_STST 0x80 // self-test in progress +#define STAT_DIAGF 0x40 // internal diagnostic failure +#define STAT_INIT 0x20 // mailbox initialization required +#define STAT_IDLE 0x10 // HBA is idle +#define STAT_CDFULL 0x08 // Command/Data output port is full +#define STAT_DFULL 0x04 // Data input port is full +#define STAT_INVCMD 0x01 // Invalid command + +// READ INTERRUPT STATUS flags +#define INTR_ANY 0x80 // any interrupt +#define INTR_SRCD 0x08 // SCSI reset detected +#define INTR_HACC 0x04 // HA command complete +#define INTR_MBOA 0x02 // MBO empty +#define INTR_MBIF 0x01 // MBI full + +// WRITE CONTROL commands +#define CTRL_HRST 0x80 // Hard reset +#define CTRL_SRST 0x40 // Soft reset +#define CTRL_IRST 0x20 // interrupt reset +#define CTRL_SCRST 0x10 // SCSI bus reset + +// READ/WRITE DATA commands +#define CMD_NOP 0x00 // No operation +#define CMD_MBINIT 0x01 // mailbox initialization +#define CMD_START_SCSI 0x02 // Start SCSI command +#define CMD_BIOSCMD 0x03 // undocumented BIOS conmmand (shadow RAM etc.) +#define CMD_INQUIRY 0x04 // Adapter inquiry +#define CMD_EMBOI 0x05 // enable Mailbox Out Interrupt +#define CMD_SELTIMEOUT 0x06 // Set SEL timeout +#define CMD_BUSON_TIME 0x07 // set bus-On time +#define CMD_BUSOFF_TIME 0x08 // set bus-off time +#define CMD_DMASPEED 0x09 // set ISA DMA speed +#define CMD_RETDEVS 0x0a // return installed devices +#define CMD_RETCONF 0x0b // return configuration data +#define CMD_TARGET 0x0c // set HBA to target mode +#define CMD_RETSETUP 0x0d // return setup data +#define CMD_ECHO 0x1f // ECHO command data (NetBSD says it is 0x1e) + +// these are for 1541C only: +#define CMD_RETDEVSHI 0x23 // return devices 8-15 (from NetBSD) +#define CMD_EXTBIOS 0x28 // return extended BIOS information +#define CMD_MBENABLE 0x29 // set mailbox interface enable + +DEFINE_DEVICE_TYPE(AHA1542C, aha1542c_device, "aha1542c", "AHA-1542C SCSI Controller") +DEFINE_DEVICE_TYPE(AHA1542CF, aha1542cf_device, "aha1542cf", "AHA-1542CF SCSI Controller") +DEFINE_DEVICE_TYPE(AHA1542CP, aha1542cp_device, "aha1542cp", "AHA-1542CP SCSI Controller") + +#define Z84C0010_TAG "z84c0010" + +READ8_MEMBER( aha1542c_device::aha1542_r ) +{ + logerror("%s aha1542_r(): offset=%d\n", machine().describe_context(), offset); + return 0xff; +} + +WRITE8_MEMBER( aha1542c_device::aha1542_w ) +{ + logerror("%s aha1542_w(): offset=%d data=0x%02x\n", machine().describe_context(), offset, data); +} + + +ROM_START( aha1542c ) + ROM_REGION( 0x8000, "aha1542", 0 ) + ROM_SYSTEM_BIOS( 0, "v101", "AHA-1540C/1542C BIOS v1.01" ) + ROMX_LOAD( "adaptec_inc_534201-00_d_bios_144c_1993.u15", 0x0000, 0x8000, CRC(35178004) SHA1(2b38f2e40cd02a1b32966ead7b202b0fca130cb8), ROM_BIOS(0) ) + ROM_SYSTEM_BIOS( 1, "v102", "AHA-1540C/1542C BIOS v1.02" ) + ROMX_LOAD( "b_91c5.bin", 0x0000, 0x8000, CRC(076ac252) SHA1(d640b980e85d07029d8ce11a52fa26ba0f93c5de), ROM_BIOS(1) ) + + ROM_REGION( 0x8000, Z84C0010_TAG, 0 ) + ROMX_LOAD( "adaptec_inc_534001-00_d_mcode_a3c2_1993.u5", 0x0000, 0x8000, CRC(220dd5a2) SHA1(4fc51c9dd63b45a50edcd56baa706d61decbef38), ROM_BIOS(0) ) + ROMX_LOAD( "m_866a.bin", 0x0000, 0x8000, CRC(ef09053a) SHA1(ae7900653357d5f32a2734bc13d9ec63bd805597), ROM_BIOS(1) ) +ROM_END + +ROM_START( aha1542cf ) + ROM_REGION( 0x8000, "aha1542", 0 ) + ROM_SYSTEM_BIOS( 0, "v201", "Adaptec 1540CF/1542CF BIOS v2.01" ) + ROMX_LOAD( "adaptec_inc_553601-00_c_bios_c38d_1993.u16", 0x0000, 0x8000, CRC(ab22fc02) SHA1(f9f783e0272fc14ba3de32316997f1f6cadc67d0), ROM_BIOS(0) ) + ROM_SYSTEM_BIOS( 1, "v210", "Adaptec 1540CF/1542CF BIOS v2.10" ) + ROMX_LOAD( "adaptec_inc_553601-00_e_bios_7600_1994.u16", 0x0000, 0x8000, CRC(8f3a2692) SHA1(b9dbd49baeec55098195131d0ed1a9bfe8463640), ROM_BIOS(1) ) + ROM_SYSTEM_BIOS( 2, "v211", "Adaptec 1540CF/1542CF BIOS v2.11" ) + ROMX_LOAD( "adaptec_inc_553601-00_g_bios_b402_1995.u16", 0x0000, 0x8000, CRC(fddd0b83) SHA1(aabd227cb338d8812e0bb5c17c08ea06c5aedd36), ROM_BIOS(2) ) + + ROM_REGION( 0x8000, Z84C0010_TAG, 0 ) + ROMX_LOAD( "adaptec_inc_553801-00_c_mcode_563d_1993.u15", 0x0000, 0x8000, CRC(7824397e) SHA1(35bc2c8fab31aad3190a478f2dc8f3a72958cf04), ROM_BIOS(0) ) + ROMX_LOAD( "adaptec_inc_553801-00_e_mcode_4b81_1994.u15", 0x0000, 0x8000, CRC(dd651476) SHA1(cda508281302be53ebdcf8daa61754c89ad12111), ROM_BIOS(1) ) + ROMX_LOAD( "adaptec_inc_553801-00_g_mcode_2cde_1995.u15", 0x0000, 0x8000, CRC(896873cd) SHA1(6edbdd9b0b15ef31ca0741cac31556d2d5266b6e), ROM_BIOS(2) ) +ROM_END + +ROM_START( aha1542cp ) + ROM_REGION( 0x8000, "aha1542", 0 ) + ROM_LOAD( "adaptec_inc_908501-00_d_bios_a91e_1995.u7", 0x0000, 0x8000, CRC(0646c35e) SHA1(3a7c2731abd8295438cfa1f2a525be53e9512b1a) ) + + ROM_REGION( 0x8000, Z84C0010_TAG, 0 ) + ROM_LOAD( "908301-00_f_mcode_17c9.u12", 0x0000, 0x8000, CRC(04494022) SHA1(431dfc26312556ddd24fccc429b2b3e93bac5c2f) ) +ROM_END + + +u8 aha1542c_device::local_status_r() +{ + return m_eeprom->do_read() << 7; +} + +void aha1542c_device::local_latch_w(u8 data) +{ + m_eeprom->cs_write(BIT(data, 2)); + m_eeprom->clk_write(BIT(data, 1)); + m_eeprom->di_write(BIT(data, 0)); + // TODO: several other bits are used +} + +void aha1542c_device::z84c0010_mem(address_map &map) +{ + map(0x0000, 0x7fff).rom().region(Z84C0010_TAG, 0); + map(0x8000, 0x9fff).ram(); // 2kb RAM chip + map(0xa000, 0xa000).r(FUNC(aha1542c_device::local_status_r)); + map(0xb000, 0xb000).w(FUNC(aha1542c_device::local_latch_w)); + map(0xe000, 0xe0ff).ram(); // probably PC<->Z80 communication area + map(0xe003, 0xe003).lr8("e003_r", []() { return 0x20; }); +} + +u8 aha1542cp_device::eeprom_r() +{ + return m_eeprom->do_read(); +} + +void aha1542cp_device::eeprom_w(u8 data) +{ + m_eeprom->cs_write(BIT(data, 2)); + m_eeprom->clk_write(BIT(data, 1)); + m_eeprom->di_write(BIT(data, 0)); +} + +void aha1542cp_device::local_mem(address_map &map) +{ + map(0x0000, 0x7fff).rom().region(Z84C0010_TAG, 0); + map(0x8000, 0x9fff).ram(); + map(0xc001, 0xc001).rw(FUNC(aha1542cp_device::eeprom_r), FUNC(aha1542cp_device::eeprom_w)); + map(0xe003, 0xe003).nopr(); +} + +const tiny_rom_entry *aha1542c_device::device_rom_region() const +{ + return ROM_NAME( aha1542c ); +} + +const tiny_rom_entry *aha1542cf_device::device_rom_region() const +{ + return ROM_NAME( aha1542cf ); +} + +const tiny_rom_entry *aha1542cp_device::device_rom_region() const +{ + return ROM_NAME( aha1542cp ); +} + +void aha1542c_device::device_add_mconfig(machine_config &config) +{ + z80_device &cpu(Z80(config, Z84C0010_TAG, 10'000'000)); + cpu.set_addrmap(AS_PROGRAM, &aha1542c_device::z84c0010_mem); + + EEPROM_93C46_16BIT(config, m_eeprom); +} + +void aha1542cp_device::device_add_mconfig(machine_config &config) +{ + z80_device &cpu(Z80(config, Z84C0010_TAG, 10'000'000)); + cpu.set_addrmap(AS_PROGRAM, &aha1542cp_device::local_mem); + + EEPROM_93C46_16BIT(config, m_eeprom); +} + +aha1542c_device::aha1542c_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, type, tag, owner, clock) + , device_isa16_card_interface(mconfig, *this) + , m_eeprom(*this, "eeprom") +{ +} + +aha1542c_device::aha1542c_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : aha1542c_device(mconfig, AHA1542C, tag, owner, clock) +{ +} + +aha1542cf_device::aha1542cf_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : aha1542c_device(mconfig, AHA1542CF, tag, owner, clock) +{ +} + +aha1542cp_device::aha1542cp_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : aha1542c_device(mconfig, AHA1542CP, tag, owner, clock) +{ +} + +void aha1542c_device::device_start() +{ + set_isa_device(); + m_isa->install_rom(this, 0xdc000, 0xdffff, "aha1542", "aha1542"); + m_isa->install_device(0x330, 0x333, read8_delegate(FUNC( aha1542cf_device::aha1542_r ), this), + write8_delegate(FUNC( aha1542cf_device::aha1542_w ), this) ); +} + + +void aha1542c_device::device_reset() +{ +} |