diff options
author | Miodrag Milanovic <mmicko@gmail.com> | 2012-08-21 10:41:19 +0000 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2012-08-21 10:41:19 +0000 |
commit | 7285b359d259b2ae0fdf85096571c386ec8c991a (patch) | |
tree | a027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/machine/x68k_scsiext.c | |
parent | 67c425e90757876a6716b7867df30c0149912e74 (diff) |
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/machine/x68k_scsiext.c')
-rw-r--r-- | src/mess/machine/x68k_scsiext.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/mess/machine/x68k_scsiext.c b/src/mess/machine/x68k_scsiext.c new file mode 100644 index 00000000000..f30a6c55662 --- /dev/null +++ b/src/mess/machine/x68k_scsiext.c @@ -0,0 +1,115 @@ +/* + * x68k_scsiext.c + * + * Sharp CZ-6BS1 SCSI-1 controller + * + * Created on: 5/06/2012 + */ + +#include "emu.h" +#include "machine/scsihd.h" +#include "machine/mb89352.h" +#include "machine/x68k_scsiext.h" + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type X68K_SCSIEXT = &device_creator<x68k_scsiext_device>; + +static const SCSIConfigTable x68k_scsiext_devtable = +{ + 7, /* 7 SCSI devices */ + { + { SCSI_ID_0, ":exp:cz6bs1:extharddisk0" }, + { SCSI_ID_1, ":exp:cz6bs1:extharddisk1" }, + { SCSI_ID_2, ":exp:cz6bs1:extharddisk2" }, + { SCSI_ID_3, ":exp:cz6bs1:extharddisk3" }, + { SCSI_ID_4, ":exp:cz6bs1:extharddisk4" }, + { SCSI_ID_5, ":exp:cz6bs1:extharddisk5" }, + { SCSI_ID_6, ":exp:cz6bs1:extharddisk6" }, + } +}; + +static const mb89352_interface x68k_scsiext_intf = +{ + &x68k_scsiext_devtable, + DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,irq_w), + DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,drq_w) +}; + +//------------------------------------------------- +// rom_region - device-specific ROM region +//------------------------------------------------- + +ROM_START( x68k_cz6bs1 ) + ROM_REGION( 0x10000, "scsiexrom", 0 ) + ROM_LOAD16_WORD_SWAP( "scsiexrom.bin", 0x0000, 0x2000, CRC(7be488de) SHA1(49616c09a8986ffe6a12ad600febe512f7ba8ae4) ) +ROM_END + +const rom_entry *x68k_scsiext_device::device_rom_region() const +{ + return ROM_NAME( x68k_cz6bs1 ); +} + +// device machine config +static MACHINE_CONFIG_FRAGMENT( x68k_scsiext ) + MCFG_MB89352A_ADD("mb89352_ext",x68k_scsiext_intf) + MCFG_DEVICE_ADD("extharddisk0", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk1", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk2", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk3", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk4", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk5", SCSIHD, 0) + MCFG_DEVICE_ADD("extharddisk6", SCSIHD, 0) +MACHINE_CONFIG_END + +machine_config_constructor x68k_scsiext_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( x68k_scsiext ); +} + +x68k_scsiext_device::x68k_scsiext_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, X68K_SCSIEXT, "Sharp CZ-6BS1 SCSI-1", tag, owner, clock), + device_x68k_expansion_card_interface(mconfig, *this), + m_spc(*this, "mb89352_ext") +{ +} + +void x68k_scsiext_device::device_start() +{ + device_t* cpu = machine().device("maincpu"); + UINT8* ROM; + astring temp; + address_space* space = cpu->memory().space(AS_PROGRAM); + m_slot = dynamic_cast<x68k_expansion_slot_device *>(owner()); + space->install_read_bank(0xea0020,0xea1fff,0,0,"scsi_ext"); + space->unmap_write(0xea0020,0xea1fff,0,0); + ROM = machine().root_device().memregion(subtag(temp,"scsiexrom"))->base(); + machine().root_device().membank("scsi_ext")->set_base(ROM); + space->install_readwrite_handler(0xea0000,0xea001f,0,0,read8_delegate(FUNC(x68k_scsiext_device::register_r),this),write8_delegate(FUNC(x68k_scsiext_device::register_w),this),0x00ff00ff); +} + +void x68k_scsiext_device::device_reset() +{ +} + +void x68k_scsiext_device::irq_w(int state) +{ + m_slot->irq2_w(state); // correct? Or perhaps selectable? +} + +void x68k_scsiext_device::drq_w(int state) +{ + // TODO +} + +READ8_MEMBER(x68k_scsiext_device::register_r) +{ + return m_spc->mb89352_r(space,offset); +} + +WRITE8_MEMBER(x68k_scsiext_device::register_w) +{ + m_spc->mb89352_w(space,offset,data); +} |