mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-12-25 03:29:38 +00:00
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-23 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** Burgundy sound codec emulation. */
|
|
|
|
#include <core/timermanager.h>
|
|
#include <devices/common/hwcomponent.h>
|
|
#include <devices/deviceregistry.h>
|
|
#include <devices/sound/burgundy.h>
|
|
#include <endianswap.h>
|
|
#include <loguru.hpp>
|
|
#include <memaccess.h>
|
|
|
|
BurgundyCodec::BurgundyCodec(std::string name) : MacioSndCodec(name)
|
|
{
|
|
supports_types(HWCompType::SND_CODEC);
|
|
|
|
static int burgundy_sample_rates[1] = { 44100 };
|
|
|
|
// Burgundy seems to supports only one sample rate
|
|
this->sr_table = burgundy_sample_rates;
|
|
this->max_sr_id = 1;
|
|
|
|
this->set_sample_rate(0); // set default sample rate
|
|
}
|
|
|
|
uint32_t BurgundyCodec::snd_ctrl_read(uint32_t offset, int size) {
|
|
uint32_t result = 0;
|
|
|
|
switch (offset) {
|
|
case AWAC_CODEC_CTRL_REG:
|
|
result = this->last_ctrl_data;
|
|
break;
|
|
case AWAC_CODEC_STATUS_REG:
|
|
result = (this->first_valid << 23) | BURGUNDY_READY |
|
|
(this->byte_counter << 14) | (this->read_pos << 12) |
|
|
(this->data_byte << 4);
|
|
break;
|
|
default:
|
|
LOG_F(ERROR, "%s: read from unsupported register 0x%X", this->name.c_str(),
|
|
offset);
|
|
}
|
|
|
|
return BYTESWAP_32(result);
|
|
}
|
|
|
|
void BurgundyCodec::snd_ctrl_write(uint32_t offset, uint32_t value, int size) {
|
|
uint8_t reg_addr, cur_byte, last_byte;
|
|
|
|
value = BYTESWAP_32(value);
|
|
|
|
switch (offset) {
|
|
case AWAC_CODEC_CTRL_REG:
|
|
this->last_ctrl_data = value;
|
|
reg_addr = (value >> 12) & 0xFF;
|
|
cur_byte = (value >> 8) & 3;
|
|
last_byte = (value >> 10) & 3;
|
|
if (value & BURGUNDY_REG_WR) {
|
|
uint32_t mask = 0xFFU << (cur_byte * 8);
|
|
this->reg_array[reg_addr] = (this->reg_array[reg_addr] & ~mask) |
|
|
((value & 0xFFU) << (cur_byte * 8));
|
|
} else {
|
|
this->reg_addr = reg_addr;
|
|
this->read_pos = cur_byte;
|
|
this->data_byte = (this->reg_array[reg_addr] >> (cur_byte * 8)) & 0xFFU;
|
|
this->first_valid = 1;
|
|
|
|
TimerManager::get_instance()->add_oneshot_timer(
|
|
USECS_TO_NSECS(10), // not sure if this is the correct delay
|
|
[this]() {
|
|
this->first_valid = 0;
|
|
this->byte_counter = (this->byte_counter + 1) & 3;
|
|
});
|
|
}
|
|
break;
|
|
default:
|
|
LOG_F(ERROR, "%s: write to unsupported register 0x%X", this->name.c_str(),
|
|
offset);
|
|
}
|
|
}
|
|
|
|
static const DeviceDescription Burgundy_Descriptor = {
|
|
BurgundyCodec::create, {}, {}
|
|
};
|
|
|
|
REGISTER_DEVICE(BurgundySnd, Burgundy_Descriptor);
|