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Diffstat (limited to 'src/devices/bus/ekara/rom.cpp')
-rw-r--r--src/devices/bus/ekara/rom.cpp121
1 files changed, 11 insertions, 110 deletions
diff --git a/src/devices/bus/ekara/rom.cpp b/src/devices/bus/ekara/rom.cpp
index f55fd325d2a..7ba557b0917 100644
--- a/src/devices/bus/ekara/rom.cpp
+++ b/src/devices/bus/ekara/rom.cpp
@@ -10,10 +10,8 @@
DEFINE_DEVICE_TYPE(EKARA_ROM_PLAIN, ekara_rom_plain_device, "ekara_rom_plain", "EKARA Cartridge")
DEFINE_DEVICE_TYPE(EKARA_ROM_I2C_BASE, ekara_rom_i2c_base_device, "ekara_rom_i2c_base", "EKARA Cartridge with I2C")
-DEFINE_DEVICE_TYPE(EKARA_ROM_I2C_24C08_EPITCH, ekara_rom_i2c_24c08_epitch_device, "ekara_rom_i2c_24c08", "EKARA Cartridge with I2C 24C08 (e-pitch)")
DEFINE_DEVICE_TYPE(EKARA_ROM_I2C_24LC04, ekara_rom_i2c_24lc04_device, "ekara_rom_i2c_24lc04", "EKARA Cartridge with I2C 24LC04")
DEFINE_DEVICE_TYPE(EKARA_ROM_I2C_24LC02, ekara_rom_i2c_24lc02_device, "ekara_rom_i2c_24lc02", "EKARA Cartridge with I2C 24LC02")
-DEFINE_DEVICE_TYPE(EKARA_ROM_I2C_24LC02_GC0010, ekara_rom_i2c_24lc02_gc0010_device, "ekara_rom_i2c_24lc02_gc0010", "EKARA Cartridge with I2C 24LC02 (GC0010 direct access)")
ekara_rom_plain_device::ekara_rom_plain_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
@@ -26,24 +24,18 @@ ekara_rom_plain_device::ekara_rom_plain_device(const machine_config &mconfig, co
{
}
-
+ekara_rom_i2c_base_device::ekara_rom_i2c_base_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ ekara_rom_plain_device(mconfig, EKARA_ROM_I2C_BASE, tag, owner, clock),
+ m_i2cmem(*this, "i2cmem")
+{
+}
ekara_rom_i2c_base_device::ekara_rom_i2c_base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
ekara_rom_plain_device(mconfig, type, tag, owner, clock),
m_i2cmem(*this, "i2cmem")
{
- m_buscontrol[0] = m_buscontrol[1] = m_buscontrol[2] = 0x00;
}
-ekara_rom_i2c_base_device::ekara_rom_i2c_base_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
- ekara_rom_i2c_base_device(mconfig, EKARA_ROM_I2C_BASE, tag, owner, clock)
-{
-}
-
-ekara_rom_i2c_24c08_epitch_device::ekara_rom_i2c_24c08_epitch_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
- ekara_rom_i2c_base_device(mconfig, EKARA_ROM_I2C_24C08_EPITCH, tag, owner, clock)
-{
-}
ekara_rom_i2c_24lc04_device::ekara_rom_i2c_24lc04_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
ekara_rom_i2c_base_device(mconfig, EKARA_ROM_I2C_24LC04, tag, owner, clock)
@@ -55,11 +47,6 @@ ekara_rom_i2c_24lc02_device::ekara_rom_i2c_24lc02_device(const machine_config &m
{
}
-ekara_rom_i2c_24lc02_gc0010_device::ekara_rom_i2c_24lc02_gc0010_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
- ekara_rom_i2c_base_device(mconfig, EKARA_ROM_I2C_24LC02_GC0010, tag, owner, clock)
-{
-}
-
/*-------------------------------------------------
mapper specific handlers
-------------------------------------------------*/
@@ -88,22 +75,6 @@ WRITE8_MEMBER(ekara_rom_plain_device::write_rom)
// i2c base
-bool ekara_rom_i2c_base_device::is_read_access_not_rom(void)
-{
- return (m_buscontrol[1] & 0x08) ? true : false;
-}
-
-bool ekara_rom_i2c_base_device::is_write_access_not_rom(void)
-{
- return (m_buscontrol[0] & 0x08) ? true : false;
-}
-
-WRITE8_MEMBER(ekara_rom_i2c_base_device::write_bus_control)
-{
- logerror("ekara_rom_i2c_base_device::write_bus_control %08x %02x\n", offset, data);
- m_buscontrol[offset] = data;
-}
-
WRITE8_MEMBER(ekara_rom_i2c_base_device::write_rom)
{
logerror("ekara_rom_i2c_base_device::write_rom %08x %02x\n", offset, data);
@@ -129,85 +100,18 @@ WRITE8_MEMBER(ekara_rom_i2c_base_device::write_extra)
m_i2cmem->write_scl((data & 0x02) >> 1);
}
-// i2c 24c08 (for epitch carts)
-
-bool ekara_rom_i2c_24c08_epitch_device::is_read_access_not_rom(void)
-{
- // write 0x08 before reading from SEEPROM
- // reads from 005fffff, cart does no accress decoding
- return (m_buscontrol[1] & 0x08) ? true : false;
-}
-
-bool ekara_rom_i2c_24c08_epitch_device::is_write_access_not_rom(void)
-{
- // writes 0x05 before writing to SEEPROM
- // actually writes to address 3fffff which is where a mirror of the base ROM sits, but clearly all signals route through the cartridge too
- // cart does no accress decoding
- return (m_buscontrol[1] & 0x04) ? true : false;
-}
-
-void ekara_rom_i2c_24c08_epitch_device::device_add_mconfig(machine_config &config)
-{
- I2CMEM(config, "i2cmem", 0).set_page_size(16).set_data_size(0x400); // 24C08
-}
// i2c 24lc04
-void ekara_rom_i2c_24lc04_device::device_add_mconfig(machine_config &config)
-{
- I2CMEM(config, "i2cmem", 0).set_page_size(16).set_data_size(0x200); // 24LC04
-}
+MACHINE_CONFIG_START(ekara_rom_i2c_24lc04_device::device_add_mconfig)
+ I2CMEM(config, "i2cmem", 0)/*.set_page_size(16)*/.set_data_size(0x200); // 24LC04
+MACHINE_CONFIG_END
// i2c 24lc02
-void ekara_rom_i2c_24lc02_device::device_add_mconfig(machine_config &config)
-{
- I2CMEM(config, "i2cmem", 0).set_page_size(16).set_data_size(0x100); // 24LC02
-}
-
-// i2c 24lc02 with direct IO port access
-
-bool ekara_rom_i2c_24lc02_gc0010_device::is_read_access_not_rom(void)
-{
- return false;
-}
-
-bool ekara_rom_i2c_24lc02_gc0010_device::is_write_access_not_rom(void)
-{
- return false;
-}
-
-READ8_MEMBER(ekara_rom_i2c_24lc02_gc0010_device::read_extra)
-{
- return 0;
-}
-
-WRITE8_MEMBER(ekara_rom_i2c_24lc02_gc0010_device::write_extra)
-{
-}
-
-
-WRITE_LINE_MEMBER(ekara_rom_i2c_24lc02_gc0010_device::write_sda)
-{
- m_i2cmem->write_sda(state);
-}
-
-WRITE_LINE_MEMBER(ekara_rom_i2c_24lc02_gc0010_device::write_scl)
-{
- m_i2cmem->write_scl(state);
-}
-
-READ_LINE_MEMBER(ekara_rom_i2c_24lc02_gc0010_device::read_sda )
-{
- return m_i2cmem->read_sda();
-}
-
-
-
-void ekara_rom_i2c_24lc02_gc0010_device::device_add_mconfig(machine_config &config)
-{
+MACHINE_CONFIG_START(ekara_rom_i2c_24lc02_device::device_add_mconfig)
I2CMEM(config, "i2cmem", 0)/*.set_page_size(16)*/.set_data_size(0x100); // 24LC02
-}
+MACHINE_CONFIG_END
/*-------------------------------------------------
@@ -217,9 +121,6 @@ void ekara_rom_i2c_24lc02_gc0010_device::device_add_mconfig(machine_config &conf
void ekara_cart(device_slot_interface &device)
{
device.option_add_internal("plain", EKARA_ROM_PLAIN);
- device.option_add_internal("rom_24c08_epitch", EKARA_ROM_I2C_24C08_EPITCH);
device.option_add_internal("rom_24lc04", EKARA_ROM_I2C_24LC04);
- device.option_add_internal("rom_24lc02", EKARA_ROM_I2C_24LC02);
- device.option_add_internal("rom_24lc02_gc0010", EKARA_ROM_I2C_24LC02_GC0010);
-
+ device.option_add_internal("rom_24lc02", EKARA_ROM_I2C_24LC02);
}