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dingusppc
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machinegossamer: add Whisper ID PROM.

This commit is contained in:
Maxim Poliakovski 2022-08-14 22:49:24 +02:00
parent 8cdbd9f81f
commit 3f3af68582
2 changed files with 16 additions and 1 deletions
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2
devices/sound/awacs.h
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@ -21,7 +21,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
/** AWAC sound devices family definitions.
Audio Waveform Aplifier and Converters (AWACs) is a family of custom audio
Audio Waveform Amplifier and Converters (AWACs) is a family of custom audio
chips used in Power Macintosh.
*/

15
machines/machinegossamer.cpp
View File

@ -26,6 +26,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <cpu/ppc/ppcemu.h>
#include <devices/common/i2c/athens.h>
#include <devices/common/i2c/i2cprom.h>
#include <devices/common/machineid.h>
#include <devices/floppy/floppyimg.h>
#include <devices/ioctrl/macio.h>
@ -41,6 +42,12 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
#include <memory>
#include <string>
// EEPROM ID content for a Whisper personality card.
const uint8_t WhisperID[16] = {
0x0F, 0xAA, 0x55, 0xAA, 0x57, 0x68, 0x69, 0x73, 0x70, 0x65, 0x72, 0x00,
0x00, 0x00, 0x00, 0x02
};
static void setup_ram_slot(std::string name, int i2c_addr, int capacity_megs) {
if (!capacity_megs)
return;
@ -95,6 +102,14 @@ int initialize_gossamer(std::string& id)
I2CBus* i2c_bus = dynamic_cast<I2CBus*>(gMachineObj->get_comp_by_type(HWCompType::I2C_HOST));
i2c_bus->register_device(0x28, dynamic_cast<I2CDevice*>(gMachineObj->get_comp_by_name("Athens")));
// create ID EEPROM for the Whisper personality card and register it with the I2C host
gMachineObj->add_device("Perch", std::unique_ptr<I2CProm>(new I2CProm(0x53, 256)));
I2CProm* perch_id = dynamic_cast<I2CProm*>(gMachineObj->get_comp_by_name("Perch"));
perch_id->fill_memory(0, 256, 0);
perch_id->fill_memory(32, 223, 0xFF);
perch_id->set_memory(0, WhisperID, sizeof(WhisperID));
i2c_bus->register_device(0x53, perch_id);
// initialize virtual CPU and request MPC750 CPU aka G3
ppc_cpu_init(grackle_obj, PPC_VER::MPC750, 16705000ULL);