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apple/imacg3.cpp: Hooked up ATI Rage IIc video and OPTi USB controller skeleton. [R. Belmont]

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arbee 2023-05-18 22:07:36 -04:00
parent e2cdd21d68
commit 80fdfaaf8c
1 changed files with 31 additions and 1 deletions
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32
src/mame/apple/imacg3.cpp
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@ -15,6 +15,8 @@
I/O: Paddington PCI I/O ASIC (see heathrow.cpp for details)
RAM: 2 PC66 DIMM slots, max 128 MB
PCI addresses scanned: 14.0, 12.0, 0d.0, 0e.0, 0f.0
****************************************************************************/
#include "emu.h"
@ -22,9 +24,11 @@
#include "machine/dimm_spd.h"
#include "machine/input_merger.h"
#include "machine/mpc106.h"
#include "machine/opti82c861.h"
#include "machine/pci.h"
#include "machine/pci-ide.h"
#include "machine/ram.h"
#include "video/atirage.h"
#include "burgundy.h"
#include "cuda.h"
#include "heathrow.h"
@ -45,6 +49,8 @@ public:
required_device<ram_device> m_ram;
private:
u32 m_sense;
void imac_map(address_map &map);
virtual void machine_start() override;
@ -60,6 +66,9 @@ private:
{
m_maincpu->set_input_line(PPC_IRQ, state);
}
u32 read_sense();
void write_sense(u32 data);
};
imac_state::imac_state(const machine_config &mconfig, device_type type, const char *tag) :
@ -76,6 +85,8 @@ imac_state::imac_state(const machine_config &mconfig, device_type type, const ch
void imac_state::machine_start()
{
m_sense = 0;
m_mpc106->set_ram_info((u8 *)m_ram->pointer(), m_ram->size());
// start off disabling all of the DIMMs
@ -99,6 +110,8 @@ void imac_state::machine_start()
m_dimm0->set_dimm_size(dimm_spd_device::SIZE_64_MIB);
break;
}
save_item(NAME(m_sense));
}
void imac_state::machine_reset()
@ -112,9 +125,20 @@ void imac_state::imac_map(address_map &map)
map.unmap_value_high();
}
u32 imac_state::read_sense()
{
// ID as a 640x480 13" for now (needs EDID, the old Apple protocol isn't supported)
return (m_sense & 0xffff00ff) | (6 << 8);
}
void imac_state::write_sense(u32 data)
{
m_sense = data;
}
void imac_state::imac(machine_config &config)
{
PPC740(config, m_maincpu, 66000000); // actually 233 MHz
PPC750(config, m_maincpu, 66000000); // actually 233 MHz
m_maincpu->ppcdrc_set_options(PPCDRC_COMPATIBLE_OPTIONS);
m_maincpu->set_addrmap(AS_PROGRAM, &imac_state::imac_map);
@ -126,6 +150,12 @@ void imac_state::imac(machine_config &config)
paddington.set_pci_root_tag(":pci:00.0", AS_DATA);
paddington.irq_callback().set(FUNC(imac_state::irq_w));
atirage_device &ati(ATI_RAGEIIC(config, "pci:12.0", 14.318181_MHz_XTAL));
ati.gpio_get_cb().set(FUNC(imac_state::read_sense));
ati.gpio_set_cb().set(FUNC(imac_state::write_sense));
OPTI_82C861(config, "pci:14.0", 0);
MACADB(config, m_macadb, 15.6672_MHz_XTAL);
CUDA(config, m_cuda, CUDA_341S0060);