mirror of
https://github.com/dingusdev/dingusppc.git
synced 2025-01-11 05:29:43 +00:00
Overhaul AWACs and implement PDM sound HW.
This commit is contained in:
Maxim Poliakovski
parent
983e278498
commit
03e58dac35
171
devices/amic.cpp
171
devices/amic.cpp
@ -25,11 +25,15 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "amic.h"
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#include "cpu/ppc/ppcmmu.h"
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#include "dmacore.h"
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#include "machines/machinebase.h"
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#include "memctrlbase.h"
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#include "viacuda.h"
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#include <algorithm>
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#include <cinttypes>
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#include <loguru.hpp>
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#include <memory>
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AMIC::AMIC()
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{
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@ -44,7 +48,10 @@ AMIC::AMIC()
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}
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this->viacuda = std::unique_ptr<ViaCuda> (new ViaCuda());
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this->awacs = std::unique_ptr<AwacDevicePdm> (new AwacDevicePdm());
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this->snd_out_dma = std::unique_ptr<AmicSndOutDma> (new AmicSndOutDma());
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this->awacs = std::unique_ptr<AwacDevicePdm> (new AwacDevicePdm());
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this->awacs->set_dma_out(this->snd_out_dma.get());
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}
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bool AMIC::supports_type(HWCompType type) {
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@ -57,6 +64,8 @@ bool AMIC::supports_type(HWCompType type) {
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uint32_t AMIC::read(uint32_t reg_start, uint32_t offset, int size)
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{
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uint32_t phase_val;
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if (offset < 0x2000) {
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return this->viacuda->read(offset >> 9);
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}
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@ -66,37 +75,80 @@ uint32_t AMIC::read(uint32_t reg_start, uint32_t offset, int size)
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case AMICReg::Snd_Stat_1:
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case AMICReg::Snd_Stat_2:
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return (this->awacs->read_stat() >> (offset & 3 * 8)) & 0xFF;
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case AMICReg::Snd_Phase0:
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case AMICReg::Snd_Phase1:
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case AMICReg::Snd_Phase2:
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// the sound phase register is organized as follows:
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// 000000oo oooooooo oopppppp where 'o' is the 12-bit offset
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// into the DMA buffer and 'p' is an undocumented prescale value
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// HWInit doesn't care about. Let's hope it will be sufficient
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// to return 0 for prescale.
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phase_val = this->snd_out_dma->get_cur_buf_pos() << 6;
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return (phase_val >> ((2 - (offset & 3)) * 8)) & 0xFF;
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case AMICReg::Snd_Out_Ctrl:
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return this->snd_out_ctrl;
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case AMICReg::Snd_Out_DMA:
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return this->snd_out_dma->read_stat();
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default:
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LOG_F(WARNING, "Unknown AMIC register read, offset=%x", offset);
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}
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return 0;
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}
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void AMIC::write(uint32_t reg_start, uint32_t offset, uint32_t value, int size)
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{
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uint32_t mask;
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if (offset < 0x2000) {
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this->viacuda->write(offset >> 9, value);
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return;
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}
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switch(offset) {
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case AMICReg::Snd_Cntl_0:
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case AMICReg::Snd_Cntl_1:
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case AMICReg::Snd_Cntl_2:
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case AMICReg::Snd_Ctrl_0:
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case AMICReg::Snd_Ctrl_1:
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case AMICReg::Snd_Ctrl_2:
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// remember values of sound control registers
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this->imm_snd_regs[offset & 3] = value;
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// transfer control information to the sound codec when ready
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if ((this->imm_snd_regs[0] & 0xC0) == PDM_SND_CNTL_VALID) {
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if ((this->imm_snd_regs[0] & 0xC0) == PDM_SND_CTRL_VALID) {
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this->awacs->write_ctrl(
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(this->imm_snd_regs[1] >> 4) | (this->imm_snd_regs[0] & 0x3F),
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((this->imm_snd_regs[1] & 0xF) << 8) | this->imm_snd_regs[2]
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);
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}
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break;
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case AMICReg::Snd_Out_Cntl:
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LOG_F(INFO, "AMIC Sound Out Ctrl updated, val=%x", value);
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case AMICReg::Snd_Buf_Size_Hi:
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case AMICReg::Snd_Buf_Size_Lo:
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mask = 0xFF00U >> (8 * (offset & 1));
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this->snd_buf_size = (this->snd_buf_size & ~mask) |
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((value & 0xFF) << (8 * ((offset & 1) ^1)));
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this->snd_buf_size &= ~3; // sound buffer size is always a multiple of 4
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LOG_F(9, "AMIC: Sound buffer size set to 0x%X", this->snd_buf_size);
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break;
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case AMICReg::Snd_In_Cntl:
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case AMICReg::Snd_Out_Ctrl:
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LOG_F(9, "AMIC Sound Out Ctrl updated, val=%x", value);
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if ((value & 1) != (this->snd_out_ctrl & 1)) {
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if (value & 1) {
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LOG_F(9, "AMIC Sound Out DMA enabled!");
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this->snd_out_dma->init(this->dma_base & ~0x3FFFF,
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this->snd_buf_size);
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this->snd_out_dma->enable();
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this->awacs->set_sample_rate((this->snd_out_ctrl >> 1) & 3);
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this->awacs->start_output_dma();
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} else {
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LOG_F(9, "AMIC Sound Out DMA disabled!");
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this->snd_out_dma->disable();
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}
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}
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this->snd_out_ctrl = value;
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break;
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case AMICReg::Snd_In_Ctrl:
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LOG_F(INFO, "AMIC Sound In Ctrl updated, val=%x", value);
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break;
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case AMICReg::Snd_Out_DMA:
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this->snd_out_dma->write_dma_out_ctrl(value);
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break;
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case AMICReg::VIA2_Slot_IER:
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LOG_F(INFO, "AMIC VIA2 Slot Interrupt Enable Register updated, val=%x", value);
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break;
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@ -106,31 +158,40 @@ void AMIC::write(uint32_t reg_start, uint32_t offset, uint32_t value, int size)
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case AMICReg::Video_Mode_Reg:
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LOG_F(INFO, "AMIC Video Mode Register set to %x", value);
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break;
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case AMICReg::Int_Cntl:
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case AMICReg::Int_Ctrl:
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LOG_F(INFO, "AMIC Interrupt Control Register set to %X", value);
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break;
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case AMICReg::Enet_DMA_Xmt_Cntl:
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case AMICReg::DMA_Base_Addr_0:
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case AMICReg::DMA_Base_Addr_1:
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case AMICReg::DMA_Base_Addr_2:
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case AMICReg::DMA_Base_Addr_3:
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mask = 0xFF000000UL >> (8 * (offset & 3));
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this->dma_base = (this->dma_base & ~mask) |
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((value & 0xFF) << (8 * (3 - (offset & 3))));
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LOG_F(9, "AMIC: DMA base address set to 0x%X", this->dma_base);
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break;
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case AMICReg::Enet_DMA_Xmt_Ctrl:
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LOG_F(INFO, "AMIC Ethernet Transmit DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SCSI_DMA_Cntl:
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case AMICReg::SCSI_DMA_Ctrl:
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LOG_F(INFO, "AMIC SCSI DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::Enet_DMA_Rcv_Cntl:
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case AMICReg::Enet_DMA_Rcv_Ctrl:
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LOG_F(INFO, "AMIC Ethernet Receive DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SWIM3_DMA_Cntl:
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case AMICReg::SWIM3_DMA_Ctrl:
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LOG_F(INFO, "AMIC SWIM3 DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SCC_DMA_Xmt_A_Cntl:
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case AMICReg::SCC_DMA_Xmt_A_Ctrl:
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LOG_F(INFO, "AMIC SCC Transmit Ch A DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SCC_DMA_Rcv_A_Cntl:
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case AMICReg::SCC_DMA_Rcv_A_Ctrl:
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LOG_F(INFO, "AMIC SCC Receive Ch A DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SCC_DMA_Xmt_B_Cntl:
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case AMICReg::SCC_DMA_Xmt_B_Ctrl:
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LOG_F(INFO, "AMIC SCC Transmit Ch B DMA Ctrl updated, val=%x", value);
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break;
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case AMICReg::SCC_DMA_Rcv_B_Cntl:
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case AMICReg::SCC_DMA_Rcv_B_Ctrl:
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LOG_F(INFO, "AMIC SCC Receive Ch B DMA Ctrl updated, val=%x", value);
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break;
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default:
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@ -138,3 +199,79 @@ void AMIC::write(uint32_t reg_start, uint32_t offset, uint32_t value, int size)
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offset, value);
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}
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}
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// =========================== DMA related stuff =============================
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AmicSndOutDma::AmicSndOutDma()
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{
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this->dma_out_ctrl = 0;
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this->enabled = false;
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}
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bool AmicSndOutDma::is_active()
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{
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return true;
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}
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void AmicSndOutDma::init(uint32_t buf_base, uint32_t buf_samples)
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{
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this->out_buf0 = buf_base + AMIC_SND_BUF0_OFFS;
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this->out_buf1 = buf_base + AMIC_SND_BUF1_OFFS;
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this->out_buf_len = buf_samples * 2 * 2;
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this->snd_buf_num = 0;
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this->cur_buf_pos = 0;
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}
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uint8_t AmicSndOutDma::read_stat()
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{
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return this->dma_out_ctrl;
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}
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void AmicSndOutDma::write_dma_out_ctrl(uint8_t value)
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{
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// clear interrupt flags
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value &= ~PDM_DMA_INTS_MASK;
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this->dma_out_ctrl = value;
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LOG_F(9, "AMIC: Sound out DMA control set to 0x%X", value);
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}
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DmaPullResult AmicSndOutDma::pull_data(uint32_t req_len, uint32_t *avail_len,
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uint8_t **p_data)
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{
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*avail_len = 0;
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int rem_len = this->out_buf_len - this->cur_buf_pos;
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if (rem_len <= 0) {
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if (!this->snd_buf_num) {
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// signal buffer 0 drained
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this->dma_out_ctrl |= PDM_DMA_IF0;
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// TODO: generate IE0 interrupt if enabled
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} else {
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// signal buffer 1 drained
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this->dma_out_ctrl |= PDM_DMA_IF1;
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// TODO: generate IE1 interrupt if enabled
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}
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// check DMA enable flag after buffer 1 was processed
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// if it's false stop delivering sound data
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// this will effectively stop audio playback
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if (this->snd_buf_num && !this->enabled) {
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this->cur_buf_pos = 0;
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return DmaPullResult::NoMoreData;
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}
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this->cur_buf_pos = 0; // reset buffer position
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this->snd_buf_num ^= 1; // toggle sound buffers
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rem_len = this->out_buf_len; // buffer size = full buffer
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}
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uint32_t len = std::min((uint32_t)rem_len, req_len);
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*p_data = mmu_get_dma_mem(
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(this->snd_buf_num ? this->out_buf1 : this->out_buf0) + this->cur_buf_pos,
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len);
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this->cur_buf_pos += len;
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*avail_len = len;
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return DmaPullResult::MoreData;
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}
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@ -25,22 +25,70 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
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#define AMIC_H
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#include "awacs.h"
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#include "dmacore.h"
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#include "mmiodevice.h"
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#include "viacuda.h"
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#include <cinttypes>
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#include <memory>
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/* AMIC DMA registers offsets from AMIC base (0x50F00000). */
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/** AMIC sound buffers are located at fixed offsets from DMA base. */
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#define AMIC_SND_BUF0_OFFS 0x10000
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#define AMIC_SND_BUF1_OFFS 0x12000
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// PDM HWInit source defines two constants: kExpBit = 0x80 and kCmdBit = 0x40
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// I don't know what they means but it seems that their combination will
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// cause sound control parameters to be transferred to the sound chip.
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#define PDM_SND_CTRL_VALID 0xC0
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#define PDM_DMA_IF1 0x80 // DMA interrupt flag => buffer 1 drained
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#define PDM_DMA_IF0 0x40 // DMA interrupt flag => buffer 0 drained
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#define PDM_DMA_INTS_MASK 0xF0 // mask for clearing all interrupt flags
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/** AMIC-specific sound output DMA implementation. */
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class AmicSndOutDma : public DmaOutChannel {
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public:
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AmicSndOutDma();
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~AmicSndOutDma() = default;
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bool is_active();
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void init(uint32_t buf_base, uint32_t buf_samples);
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void enable() { this->enabled = true; };
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void disable() { this->enabled = false; };
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uint8_t read_stat();
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void write_dma_out_ctrl(uint8_t value);
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uint32_t get_cur_buf_pos() { return this->cur_buf_pos; };
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DmaPullResult pull_data(uint32_t req_len, uint32_t *avail_len,
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uint8_t **p_data);
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private:
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bool enabled;
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uint8_t dma_out_ctrl;
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uint32_t out_buf0;
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uint32_t out_buf1;
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uint32_t out_buf_len;
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uint32_t snd_buf_num;
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uint32_t cur_buf_pos;
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};
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/* AMIC registers offsets from AMIC base (0x50F00000). */
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enum AMICReg : uint32_t {
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// Audio codec control registers
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Snd_Cntl_0 = 0x14000, // audio codec control register 0
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Snd_Cntl_1 = 0x14001, // audio codec control register 1
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Snd_Cntl_2 = 0x14002, // audio codec control register 2
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// Sound control registers
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Snd_Ctrl_0 = 0x14000, // audio codec control register 0
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Snd_Ctrl_1 = 0x14001, // audio codec control register 1
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Snd_Ctrl_2 = 0x14002, // audio codec control register 2
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Snd_Stat_0 = 0x14004, // audio codec status register 0
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Snd_Stat_1 = 0x14005, // audio codec status register 1
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Snd_Stat_2 = 0x14006, // audio codec status register 2
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Snd_Out_Cntl = 0x14010, // audio codec output DMA control register
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Snd_In_Cntl = 0x14011, // audio codec input DMA control register
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Snd_Buf_Size_Hi = 0x14008, // sound buffer size, high-order byte
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Snd_Buf_Size_Lo = 0x14009, // sound buffer size, low-order byte
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Snd_Phase0 = 0x1400C, // high-order byte of the sound phase register
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Snd_Phase1 = 0x1400D, // middle byte of the sound phase register
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Snd_Phase2 = 0x1400E, // low-order byte of the sound phase register
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Snd_Out_Ctrl = 0x14010, // audio codec output control register
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Snd_In_Ctrl = 0x14011, // audio codec input control register
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Snd_In_DMA = 0x14014, // sound input DMA status/control register
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Snd_Out_DMA = 0x14018, // sound output DMA status/control register
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// VIA2 registers
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VIA2_Slot_IER = 0x26012,
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@ -49,19 +97,24 @@ enum AMICReg : uint32_t {
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// Video control registers
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Video_Mode_Reg = 0x28000,
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Int_Cntl = 0x2A000,
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Int_Ctrl = 0x2A000,
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// DMA control registers
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Enet_DMA_Xmt_Cntl = 0x31C20,
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SCSI_DMA_Cntl = 0x32008,
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Enet_DMA_Rcv_Cntl = 0x32028,
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SWIM3_DMA_Cntl = 0x32068,
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SCC_DMA_Xmt_A_Cntl = 0x32088,
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SCC_DMA_Rcv_A_Cntl = 0x32098,
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SCC_DMA_Xmt_B_Cntl = 0x320A8,
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SCC_DMA_Rcv_B_Cntl = 0x320B8,
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DMA_Base_Addr_0 = 0x31000,
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DMA_Base_Addr_1 = 0x31001,
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DMA_Base_Addr_2 = 0x31002,
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DMA_Base_Addr_3 = 0x31003,
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Enet_DMA_Xmt_Ctrl = 0x31C20,
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SCSI_DMA_Ctrl = 0x32008,
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Enet_DMA_Rcv_Ctrl = 0x32028,
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SWIM3_DMA_Ctrl = 0x32068,
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SCC_DMA_Xmt_A_Ctrl = 0x32088,
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SCC_DMA_Rcv_A_Ctrl = 0x32098,
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SCC_DMA_Xmt_B_Ctrl = 0x320A8,
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SCC_DMA_Rcv_B_Ctrl = 0x320B8,
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};
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/** Apple Memory-mapped I/O controller device. */
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class AMIC : public MMIODevice {
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public:
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AMIC();
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@ -79,8 +132,14 @@ protected:
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private:
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uint8_t imm_snd_regs[4]; // temporary storage for sound control registers
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uint32_t dma_base = 0; // DMA physical base address
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uint16_t snd_buf_size = 0; // sound buffer size in bytes
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uint8_t snd_out_ctrl = 0;
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std::unique_ptr<ViaCuda> viacuda;
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std::unique_ptr<AwacDevicePdm> awacs;
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std::unique_ptr<AmicSndOutDma> snd_out_dma;
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};
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#endif // AMIC_H
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@ -1,6 +1,6 @@
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/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-20 divingkatae and maximum
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Copyright (C) 2018-21 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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@ -21,7 +21,11 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
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/** AWAC sound device emulation.
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Author: Max Poliakovski 2019-20
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Currently supported audio codecs:
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- PDM AWACs in Nubus Power Macintosh models
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- Screamer AWACs in Beige G3
|
||||
|
||||
Author: Max Poliakovski 2019-21
|
||||
*/
|
||||
|
||||
#include "awacs.h"
|
||||
@ -31,37 +35,106 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
#include "soundserver.h"
|
||||
#include <algorithm>
|
||||
#include <loguru.hpp>
|
||||
#include <memory>
|
||||
|
||||
static int awac_freqs[8] = {44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350};
|
||||
|
||||
|
||||
AWACDevice::AWACDevice()
|
||||
AwacsBase::AwacsBase()
|
||||
{
|
||||
this->audio_proc = new AudioProcessor();
|
||||
|
||||
/* register audio processor chip with the I2C bus */
|
||||
I2CBus* i2c_bus = dynamic_cast<I2CBus*>(gMachineObj->get_comp_by_type(HWCompType::I2C_HOST));
|
||||
i2c_bus->register_device(0x45, this->audio_proc);
|
||||
|
||||
// connect to SoundServer
|
||||
this->snd_server = dynamic_cast<SoundServer *>
|
||||
(gMachineObj->get_comp_by_name("SoundServer"));
|
||||
this->out_stream_ready = false;
|
||||
}
|
||||
|
||||
AWACDevice::~AWACDevice()
|
||||
AwacsBase::~AwacsBase()
|
||||
{
|
||||
// disconnect from SoundServer
|
||||
if (this->out_stream_ready) {
|
||||
snd_server->close_out_stream();
|
||||
}
|
||||
|
||||
delete this->audio_proc;
|
||||
}
|
||||
|
||||
void AWACDevice::set_dma_out(DMAChannel* dma_out_ch) {
|
||||
this->dma_out_ch = dma_out_ch;
|
||||
void AwacsBase::set_sample_rate(int sr_id)
|
||||
{
|
||||
if (sr_id > this->max_sr_id) {
|
||||
LOG_F(ERROR, "AWACs: invalid sample rate ID %d!", sr_id);
|
||||
} else {
|
||||
this->cur_sample_rate = this->sr_table[sr_id];
|
||||
}
|
||||
};
|
||||
|
||||
void AwacsBase::start_output_dma()
|
||||
{
|
||||
int err;
|
||||
|
||||
if ((err = this->snd_server->open_out_stream(this->cur_sample_rate,
|
||||
(void *)this->dma_out_ch))) {
|
||||
LOG_F(ERROR, "AWACs: unable to open sound output stream: %d", err);
|
||||
this->out_stream_ready = false;
|
||||
return;
|
||||
}
|
||||
|
||||
this->out_stream_ready = true;
|
||||
|
||||
if ((err = snd_server->start_out_stream())) {
|
||||
LOG_F(ERROR, "AWACs: could not start sound output stream");
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t AWACDevice::snd_ctrl_read(uint32_t offset, int size) {
|
||||
void AwacsBase::stop_output_dma()
|
||||
{
|
||||
if (this->out_stream_ready) {
|
||||
snd_server->close_out_stream();
|
||||
this->out_stream_ready = false;
|
||||
}
|
||||
}
|
||||
|
||||
//=========================== PDM-style AWACs =================================
|
||||
AwacDevicePdm::AwacDevicePdm() : AwacsBase()
|
||||
{
|
||||
static int pdm_awac_freqs[3] = {22050, 29400, 44100};
|
||||
|
||||
// PDM-style AWACs only supports three sample rates
|
||||
this->sr_table = pdm_awac_freqs;
|
||||
this->max_sr_id = 2;
|
||||
}
|
||||
|
||||
uint32_t AwacDevicePdm::read_stat()
|
||||
{
|
||||
LOG_F(INFO, "AWACs-PDM: status requested!");
|
||||
// TODO: return valid status including manufacturer & device IDs
|
||||
return 0;
|
||||
}
|
||||
|
||||
void AwacDevicePdm::write_ctrl(uint32_t addr, uint16_t value)
|
||||
{
|
||||
LOG_F(9, "AWACs-PDM: control updated, addr=0x%X, val=0x%X", addr, value);
|
||||
|
||||
if (addr <= 4) {
|
||||
this->ctrl_regs[addr] = value;
|
||||
} else {
|
||||
LOG_F(ERROR, "AWACs-PDM: invalid control register address %d!", addr);
|
||||
}
|
||||
}
|
||||
|
||||
//============================= Screamer AWACs ================================
|
||||
AwacsScreamer::AwacsScreamer() : AwacsBase()
|
||||
{
|
||||
this->audio_proc = std::unique_ptr<AudioProcessor> (new AudioProcessor());
|
||||
|
||||
/* register audio processor chip with the I2C bus */
|
||||
I2CBus* i2c_bus = dynamic_cast<I2CBus*>(gMachineObj->get_comp_by_type(HWCompType::I2C_HOST));
|
||||
i2c_bus->register_device(0x45, this->audio_proc.get());
|
||||
|
||||
static int screamer_freqs[8] = {
|
||||
44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
|
||||
};
|
||||
|
||||
this->sr_table = screamer_freqs;
|
||||
this->max_sr_id = 7;
|
||||
}
|
||||
|
||||
uint32_t AwacsScreamer::snd_ctrl_read(uint32_t offset, int size)
|
||||
{
|
||||
switch (offset) {
|
||||
case AWAC_SOUND_CTRL_REG:
|
||||
return this->snd_ctrl_reg;
|
||||
@ -69,191 +142,43 @@ uint32_t AWACDevice::snd_ctrl_read(uint32_t offset, int size) {
|
||||
return this->is_busy;
|
||||
case AWAC_CODEC_STATUS_REG:
|
||||
return (AWAC_AVAILABLE << 8) | (AWAC_MAKER_CRYSTAL << 16) | (AWAC_REV_SCREAMER << 20);
|
||||
break;
|
||||
default:
|
||||
LOG_F(ERROR, "AWAC: unsupported register at offset 0x%X", offset);
|
||||
LOG_F(ERROR, "Screamer: unsupported register at offset 0x%X", offset);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void AWACDevice::snd_ctrl_write(uint32_t offset, uint32_t value, int size) {
|
||||
void AwacsScreamer::snd_ctrl_write(uint32_t offset, uint32_t value, int size)
|
||||
{
|
||||
int subframe, reg_num;
|
||||
uint16_t data;
|
||||
|
||||
switch (offset) {
|
||||
case AWAC_SOUND_CTRL_REG:
|
||||
this->snd_ctrl_reg = BYTESWAP_32(value);
|
||||
LOG_F(INFO, "New sound control value = 0x%X", this->snd_ctrl_reg);
|
||||
LOG_F(9, "Screamer: new sound control value = 0x%X", this->snd_ctrl_reg);
|
||||
break;
|
||||
case AWAC_CODEC_CTRL_REG:
|
||||
subframe = (value >> 14) & 3;
|
||||
reg_num = (value >> 20) & 7;
|
||||
data = ((value >> 8) & 0xF00) | ((value >> 24) & 0xFF);
|
||||
LOG_F(INFO, "AWAC subframe = %d, reg = %d, data = %08X\n", subframe, reg_num, data);
|
||||
LOG_F(9, "Screamer subframe = %d, reg = %d, data = %08X\n",
|
||||
subframe, reg_num, data);
|
||||
if (!subframe)
|
||||
this->control_regs[reg_num] = data;
|
||||
break;
|
||||
default:
|
||||
LOG_F(ERROR, "AWAC: unsupported register at offset 0x%X", offset);
|
||||
LOG_F(ERROR, "Screamer: unsupported register at offset 0x%X", offset);
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
static void convert_data(const uint8_t *in, SoundIoChannelArea *out_buf, uint32_t frame_count)
|
||||
{
|
||||
uint16_t *p_in = (uint16_t *)in;
|
||||
|
||||
for (int i = 0; i < frame_count; i += 2, p_in += 4) {
|
||||
*(uint16_t *)(out_buf[0].ptr) = BYTESWAP_16(p_in[0]);
|
||||
out_buf[0].ptr += out_buf[0].step;
|
||||
*(uint16_t *)(out_buf[0].ptr) = BYTESWAP_16(p_in[1]);
|
||||
out_buf[0].ptr += out_buf[0].step;
|
||||
|
||||
*(uint16_t *)(out_buf[1].ptr) = BYTESWAP_16(p_in[2]);
|
||||
out_buf[1].ptr += out_buf[1].step;
|
||||
*(uint16_t *)(out_buf[1].ptr) = BYTESWAP_16(p_in[3]);
|
||||
out_buf[1].ptr += out_buf[1].step;
|
||||
}
|
||||
}
|
||||
|
||||
static void insert_silence(SoundIoChannelArea *out_buf, uint32_t frame_count)
|
||||
{
|
||||
for (int i = 0; i < frame_count; i += 2) {
|
||||
*(uint16_t *)(out_buf[0].ptr) = 0;
|
||||
out_buf[0].ptr += out_buf[0].step;
|
||||
*(uint16_t *)(out_buf[0].ptr) = 0;
|
||||
out_buf[0].ptr += out_buf[0].step;
|
||||
|
||||
*(uint16_t *)(out_buf[1].ptr) = 0;
|
||||
out_buf[1].ptr += out_buf[1].step;
|
||||
*(uint16_t *)(out_buf[1].ptr) = 0;
|
||||
out_buf[1].ptr += out_buf[1].step;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
static void sound_out_callback(struct SoundIoOutStream *outstream,
|
||||
int frame_count_min, int frame_count_max)
|
||||
{
|
||||
int err, frame_count;
|
||||
uint8_t *p_in;
|
||||
uint32_t buf_len, rem_len, got_len;
|
||||
struct SoundIoChannelArea *areas;
|
||||
DMAChannel *dma_ch = (DMAChannel *)outstream->userdata; /* C API baby! */
|
||||
int n_channels = outstream->layout.channel_count;
|
||||
bool stop = false;
|
||||
|
||||
//if (!dma_ch->is_active()) {
|
||||
// soundio_outstream_clear_buffer(outstream);
|
||||
// soundio_outstream_pause(outstream, true);
|
||||
// return;
|
||||
//}
|
||||
|
||||
if (frame_count_max > 512) {
|
||||
frame_count = 512;
|
||||
}
|
||||
else {
|
||||
frame_count = frame_count_max;
|
||||
}
|
||||
|
||||
buf_len = (frame_count * n_channels) << 1;
|
||||
//frame_count = frame_count_max;
|
||||
|
||||
//LOG_F(INFO, "frame_count_min=%d", frame_count_min);
|
||||
//LOG_F(INFO, "frame_count_max=%d", frame_count_max);
|
||||
//LOG_F(INFO, "channel count: %d", n_channels);
|
||||
//LOG_F(INFO, "buf_len: %d", buf_len);
|
||||
|
||||
if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count))) {
|
||||
LOG_F(ERROR, "unrecoverable stream error: %s\n", soundio_strerror(err));
|
||||
return;
|
||||
}
|
||||
|
||||
for (rem_len = buf_len; rem_len > 0; rem_len -= got_len) {
|
||||
if (!dma_ch->get_data(rem_len, &got_len, &p_in)) {
|
||||
//LOG_F(INFO, "SndCallback: got_len = %d", got_len);
|
||||
convert_data(p_in, areas, got_len >> 2);
|
||||
//LOG_F(9, "Converted sound data, len = %d", got_len);
|
||||
} else { /* no more data */
|
||||
//memset(buf, 0, rem_len); /* fill the buffer with silence */
|
||||
//LOG_F(9, "Inserted silence, len = %d", rem_len);
|
||||
|
||||
/* fill the buffer with silence */
|
||||
//LOG_F(ERROR, "rem_len=%d", rem_len);
|
||||
insert_silence(areas, rem_len >> 2);
|
||||
stop = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if ((err = soundio_outstream_end_write(outstream))) {
|
||||
LOG_F(ERROR, "unrecoverable stream error: %s\n", soundio_strerror(err));
|
||||
return;
|
||||
}
|
||||
|
||||
if (stop) {
|
||||
LOG_F(INFO, "pausing result: %s",
|
||||
soundio_strerror(soundio_outstream_pause(outstream, true)));
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
long AWACDevice::sound_out_callback(cubeb_stream *stream, void *user_data,
|
||||
void const *input_buffer, void *output_buffer,
|
||||
long req_frames)
|
||||
{
|
||||
uint8_t *p_in;
|
||||
int16_t* in_buf, * out_buf;
|
||||
uint32_t got_len;
|
||||
long frames, out_frames;
|
||||
AWACDevice *this_ptr = static_cast<AWACDevice*>(user_data); /* C API baby! */
|
||||
|
||||
if (!this_ptr->dma_out_ch->is_active()) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
out_buf = (int16_t*)output_buffer;
|
||||
|
||||
out_frames = 0;
|
||||
|
||||
while (req_frames > 0) {
|
||||
if (!this_ptr->dma_out_ch->get_data(req_frames << 2, &got_len, &p_in)) {
|
||||
frames = got_len >> 2;
|
||||
|
||||
in_buf = (int16_t*)p_in;
|
||||
|
||||
for (int i = frames; i > 0; i--) {
|
||||
out_buf[0] = BYTESWAP_16(in_buf[0]);
|
||||
out_buf[1] = BYTESWAP_16(in_buf[1]);
|
||||
in_buf += 2;
|
||||
out_buf += 2;
|
||||
}
|
||||
|
||||
req_frames -= frames;
|
||||
out_frames += frames;
|
||||
}
|
||||
else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return out_frames;
|
||||
}
|
||||
|
||||
void status_callback(cubeb_stream *stream, void *user_data, cubeb_state state)
|
||||
{
|
||||
LOG_F(9, "Cubeb status callback fired, status = %d", state);
|
||||
}
|
||||
|
||||
void AWACDevice::open_stream(int sample_rate)
|
||||
void AwacsScreamer::open_stream(int sample_rate)
|
||||
{
|
||||
int err;
|
||||
|
||||
if ((err = this->snd_server->open_out_stream(sample_rate, sound_out_callback,
|
||||
status_callback, (void *)this))) {
|
||||
LOG_F(ERROR, "AWAC: unable to open sound output stream: %d", err);
|
||||
if ((err = this->snd_server->open_out_stream(sample_rate, (void *)this->dma_out_ch))) {
|
||||
LOG_F(ERROR, "Screamer: unable to open sound output stream: %d", err);
|
||||
this->out_stream_ready = false;
|
||||
} else {
|
||||
this->out_sample_rate = sample_rate;
|
||||
@ -261,17 +186,17 @@ void AWACDevice::open_stream(int sample_rate)
|
||||
}
|
||||
}
|
||||
|
||||
void AWACDevice::dma_start()
|
||||
void AwacsScreamer::dma_start()
|
||||
{
|
||||
int err;
|
||||
|
||||
if (!this->out_stream_ready) {
|
||||
this->open_stream(awac_freqs[(this->snd_ctrl_reg >> 8) & 7]);
|
||||
} else if (this->out_sample_rate != awac_freqs[(this->snd_ctrl_reg >> 8) & 7]) {
|
||||
this->open_stream(this->sr_table[(this->snd_ctrl_reg >> 8) & 7]);
|
||||
} else if (this->out_sample_rate != this->sr_table[(this->snd_ctrl_reg >> 8) & 7]) {
|
||||
snd_server->close_out_stream();
|
||||
this->open_stream(awac_freqs[(this->snd_ctrl_reg >> 8) & 7]);
|
||||
this->open_stream(this->sr_table[(this->snd_ctrl_reg >> 8) & 7]);
|
||||
} else {
|
||||
LOG_F(ERROR, "AWAC: unpausing attempted!");
|
||||
LOG_F(ERROR, "Screamer: unpausing attempted!");
|
||||
return;
|
||||
}
|
||||
|
||||
@ -280,32 +205,10 @@ void AWACDevice::dma_start()
|
||||
}
|
||||
|
||||
if ((err = snd_server->start_out_stream())) {
|
||||
LOG_F(ERROR, "Could not start sound output stream");
|
||||
LOG_F(ERROR, "Screamer: could not start sound output stream");
|
||||
}
|
||||
}
|
||||
|
||||
void AWACDevice::dma_end()
|
||||
void AwacsScreamer::dma_end()
|
||||
{
|
||||
}
|
||||
|
||||
//=========================== PDM-style AWAC =================================
|
||||
AwacDevicePdm::AwacDevicePdm()
|
||||
{
|
||||
}
|
||||
|
||||
uint32_t AwacDevicePdm::read_stat()
|
||||
{
|
||||
LOG_F(INFO, "AWAC-PDM status requested!");
|
||||
return 0;
|
||||
}
|
||||
|
||||
void AwacDevicePdm::write_ctrl(uint32_t addr, uint16_t value)
|
||||
{
|
||||
LOG_F(INFO, "AWAC-PDM control updated, address=0x%X, val=0x%X", addr, value);
|
||||
|
||||
if (addr <= 4) {
|
||||
this->ctrl_regs[addr] = value;
|
||||
} else {
|
||||
LOG_F(ERROR, "AWAC-PDM: invalid control register address %d!", addr);
|
||||
}
|
||||
}
|
||||
|
||||
103
devices/awacs.h
103
devices/awacs.h
@ -21,26 +21,69 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
/** AWAC sound devices family definitions.
|
||||
|
||||
Audio Waveform Aplifier and Converter (AWAC) is a family of custom audio
|
||||
Audio Waveform Aplifier and Converters (AWACs) is a family of custom audio
|
||||
chips used in Power Macintosh.
|
||||
*/
|
||||
|
||||
#ifndef AWAC_H
|
||||
#define AWAC_H
|
||||
|
||||
#include "dmacore.h"
|
||||
#include "dbdma.h"
|
||||
#include "i2c.h"
|
||||
#include "soundserver.h"
|
||||
#include <cinttypes>
|
||||
#include <memory>
|
||||
|
||||
/** AWAC registers offsets. */
|
||||
/** Base class for the AWACs codecs. */
|
||||
class AwacsBase {
|
||||
public:
|
||||
AwacsBase();
|
||||
~AwacsBase();
|
||||
|
||||
void set_dma_out(DmaOutChannel *dma_out_ch) {
|
||||
this->dma_out_ch = dma_out_ch;
|
||||
};
|
||||
|
||||
void set_sample_rate(int sr_id);
|
||||
void start_output_dma();
|
||||
void stop_output_dma();
|
||||
|
||||
protected:
|
||||
SoundServer *snd_server; // SoundServer instance pointer
|
||||
DmaOutChannel *dma_out_ch; // DMA output channel instance pointer
|
||||
|
||||
int *sr_table; // pointer to the table of supported sample rates
|
||||
int max_sr_id; // maximum value for sample rate ID
|
||||
|
||||
bool out_stream_ready;
|
||||
int cur_sample_rate;
|
||||
};
|
||||
|
||||
/** AWACs PDM-style sound codec. */
|
||||
class AwacDevicePdm : public AwacsBase {
|
||||
public:
|
||||
AwacDevicePdm();
|
||||
~AwacDevicePdm() = default;
|
||||
|
||||
uint32_t read_stat(void);
|
||||
void write_ctrl(uint32_t addr, uint16_t value);
|
||||
|
||||
void dma_out_start(uint8_t sample_rate_id);
|
||||
void dma_out_stop();
|
||||
|
||||
private:
|
||||
uint16_t ctrl_regs[5]; // 12-bit wide control registers
|
||||
};
|
||||
|
||||
/** AWACs Screamer registers offsets. */
|
||||
enum {
|
||||
AWAC_SOUND_CTRL_REG = 0x00,
|
||||
AWAC_CODEC_CTRL_REG = 0x10,
|
||||
AWAC_CODEC_STATUS_REG = 0x20,
|
||||
};
|
||||
|
||||
/** AWAC manufacturer and revision. */
|
||||
/** AWACs Screamer manufacturer and revision. */
|
||||
#define AWAC_MAKER_CRYSTAL 1
|
||||
#define AWAC_REV_SCREAMER 3
|
||||
|
||||
@ -67,7 +110,8 @@ public:
|
||||
|
||||
this->sub_addr = sub_addr & 0xF;
|
||||
this->auto_inc = !!(sub_addr & 0x10);
|
||||
LOG_F(INFO, "TDA7433 subaddress = 0x%X, auto increment = %d", this->sub_addr, this->auto_inc);
|
||||
LOG_F(9, "TDA7433 subaddress = 0x%X, auto increment = %d",
|
||||
this->sub_addr, this->auto_inc);
|
||||
this->pos++;
|
||||
return true;
|
||||
};
|
||||
@ -76,7 +120,7 @@ public:
|
||||
if (!this->pos) {
|
||||
return send_subaddress(data);
|
||||
} else if (this->sub_addr <= 6) {
|
||||
LOG_F(INFO, "TDA7433 byte 0x%X received", data);
|
||||
LOG_F(9, "TDA7433 byte 0x%X received", data);
|
||||
this->regs[this->sub_addr] = data;
|
||||
if (this->auto_inc) {
|
||||
this->sub_addr++;
|
||||
@ -89,7 +133,7 @@ public:
|
||||
|
||||
bool receive_byte(uint8_t* p_data) {
|
||||
*p_data = this->regs[this->sub_addr];
|
||||
LOG_F(INFO, "TDA7433 byte 0x%X sent", *p_data);
|
||||
LOG_F(9, "TDA7433 byte 0x%X sent", *p_data);
|
||||
return true;
|
||||
};
|
||||
|
||||
@ -101,15 +145,13 @@ private:
|
||||
};
|
||||
|
||||
|
||||
class AWACDevice : public DMACallback {
|
||||
class AwacsScreamer : public AwacsBase, public DMACallback {
|
||||
public:
|
||||
AWACDevice();
|
||||
~AWACDevice();
|
||||
AwacsScreamer();
|
||||
~AwacsScreamer();
|
||||
|
||||
void set_dma_out(DMAChannel* dma_out_ch);
|
||||
|
||||
uint32_t snd_ctrl_read(uint32_t offset, int size);
|
||||
void snd_ctrl_write(uint32_t offset, uint32_t value, int size);
|
||||
uint32_t snd_ctrl_read(uint32_t offset, int size);
|
||||
void snd_ctrl_write(uint32_t offset, uint32_t value, int size);
|
||||
|
||||
/* DMACallback methods */
|
||||
void dma_start();
|
||||
@ -119,42 +161,13 @@ protected:
|
||||
void open_stream(int sample_rate);
|
||||
|
||||
private:
|
||||
static long sound_out_callback(cubeb_stream* stream, void* user_data,
|
||||
void const* input_buffer, void* output_buffer,
|
||||
long req_frames);
|
||||
|
||||
uint32_t snd_ctrl_reg = {0};
|
||||
uint16_t control_regs[8] = {0}; /* control registers, each 12-bits wide */
|
||||
uint32_t snd_ctrl_reg = { 0 };
|
||||
uint16_t control_regs[8] = { 0 }; /* control registers, each 12-bits wide */
|
||||
uint8_t is_busy = 0;
|
||||
AudioProcessor* audio_proc;
|
||||
|
||||
SoundServer *snd_server;
|
||||
|
||||
bool out_stream_ready;
|
||||
int out_sample_rate;
|
||||
|
||||
DMAChannel *dma_out_ch;
|
||||
std::unique_ptr<AudioProcessor> audio_proc;
|
||||
};
|
||||
|
||||
/** AWAC PDM-style definitions. */
|
||||
|
||||
// PDM HWInit source defines two constants: kExpBit = 0x80 and kCmdBit = 0x40
|
||||
// I don't know what they means but it seems that their combination will
|
||||
// cause sound control parameters to be transferred to the sound chip.
|
||||
#define PDM_SND_CNTL_VALID 0xC0
|
||||
|
||||
/** AWAC PDM-style sound codec. */
|
||||
class AwacDevicePdm {
|
||||
public:
|
||||
AwacDevicePdm();
|
||||
~AwacDevicePdm() = default;
|
||||
|
||||
uint32_t read_stat(void);
|
||||
void write_ctrl(uint32_t addr, uint16_t value);
|
||||
|
||||
private:
|
||||
uint16_t ctrl_regs[5]; // 12-bit wide control registers
|
||||
};
|
||||
|
||||
|
||||
#endif /* AWAC_H */
|
||||
|
||||
@ -21,6 +21,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
/** @file Descriptor-based direct memory access emulation. */
|
||||
|
||||
#include "dmacore.h"
|
||||
#include "dbdma.h"
|
||||
#include "cpu/ppc/ppcmmu.h"
|
||||
#include "endianswap.h"
|
||||
@ -184,13 +185,14 @@ void DMAChannel::reg_write(uint32_t offset, uint32_t value, int size) {
|
||||
}
|
||||
}
|
||||
|
||||
int DMAChannel::get_data(uint32_t req_len, uint32_t *avail_len, uint8_t **p_data)
|
||||
DmaPullResult DMAChannel::pull_data(uint32_t req_len, uint32_t *avail_len, uint8_t **p_data)
|
||||
{
|
||||
*avail_len = 0;
|
||||
|
||||
if (this->ch_stat & CH_STAT_DEAD || !(this->ch_stat & CH_STAT_ACTIVE)) {
|
||||
/* dead or idle channel? -> no more data */
|
||||
LOG_F(WARNING, "Dead/idle channel -> no more data");
|
||||
return -1; /* dead or idle channel? -> no more data */
|
||||
return DmaPullResult::NoMoreData;
|
||||
}
|
||||
|
||||
/* interpret DBDMA program until we get data or become idle */
|
||||
@ -212,10 +214,10 @@ int DMAChannel::get_data(uint32_t req_len, uint32_t *avail_len, uint8_t **p_data
|
||||
*avail_len = this->queue_len;
|
||||
this->queue_len = 0;
|
||||
}
|
||||
return 0; /* tell the caller there is more data */
|
||||
return DmaPullResult::MoreData; /* tell the caller there is more data */
|
||||
}
|
||||
|
||||
return -1; /* tell the caller there is no more data */
|
||||
return DmaPullResult::NoMoreData; /* tell the caller there is no more data */
|
||||
}
|
||||
|
||||
bool DMAChannel::is_active()
|
||||
|
||||
@ -29,6 +29,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
#ifndef DB_DMA_H
|
||||
#define DB_DMA_H
|
||||
|
||||
#include "dmacore.h"
|
||||
#include <cinttypes>
|
||||
|
||||
/** DBDMA Channel registers offsets */
|
||||
@ -67,7 +68,7 @@ public:
|
||||
//virtual void dma_pull(uint8_t *buf, int size) = 0;
|
||||
};
|
||||
|
||||
class DMAChannel {
|
||||
class DMAChannel : public DmaOutChannel {
|
||||
public:
|
||||
DMAChannel(DMACallback* cb) {
|
||||
this->dma_cb = cb;
|
||||
@ -77,8 +78,8 @@ public:
|
||||
uint32_t reg_read(uint32_t offset, int size);
|
||||
void reg_write(uint32_t offset, uint32_t value, int size);
|
||||
|
||||
int get_data(uint32_t req_len, uint32_t *avail_len, uint8_t **p_data);
|
||||
bool is_active();
|
||||
bool is_active();
|
||||
DmaPullResult pull_data(uint32_t req_len, uint32_t *avail_len, uint8_t **p_data);
|
||||
|
||||
protected:
|
||||
void get_next_cmd(uint32_t cmd_addr, DMACmd* p_cmd);
|
||||
|
||||
41
devices/dmacore.h
Normal file
41
devices/dmacore.h
Normal file
@ -0,0 +1,41 @@
|
||||
/*
|
||||
DingusPPC - The Experimental PowerPC Macintosh emulator
|
||||
Copyright (C) 2018-21 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/>.
|
||||
*/
|
||||
|
||||
/** @file Core definitions for direct memory access (DMA) emulation. */
|
||||
|
||||
#ifndef DMA_CORE_H
|
||||
#define DMA_CORE_H
|
||||
|
||||
#include <cinttypes>
|
||||
|
||||
enum DmaPullResult : int {
|
||||
MoreData, // data source has more data to be pulled
|
||||
NoMoreData, // data source has no more data to be pulled
|
||||
};
|
||||
|
||||
class DmaOutChannel {
|
||||
public:
|
||||
virtual bool is_active() = 0;
|
||||
virtual DmaPullResult pull_data(uint32_t req_len, uint32_t *avail_len,
|
||||
uint8_t **p_data) = 0;
|
||||
};
|
||||
|
||||
#endif // DMA_CORE_H
|
||||
@ -42,7 +42,7 @@ HeathrowIC::HeathrowIC() : PCIDevice("mac-io/heathrow") {
|
||||
this->viacuda = new ViaCuda();
|
||||
gMachineObj->add_subdevice("ViaCuda", this->viacuda);
|
||||
|
||||
this->screamer = new AWACDevice();
|
||||
this->screamer = new AwacsScreamer();
|
||||
this->snd_out_dma = new DMAChannel(this->screamer);
|
||||
this->screamer->set_dma_out(this->snd_out_dma);
|
||||
|
||||
|
||||
@ -149,7 +149,7 @@ private:
|
||||
/* device cells */
|
||||
ViaCuda* viacuda; // VIA cell with Cuda MCU attached to it
|
||||
NVram* nvram; // NVRAM cell
|
||||
AWACDevice* screamer; // Screamer audio codec instance
|
||||
AwacsScreamer *screamer; // Screamer audio codec instance
|
||||
MESHController *mesh; // MESH SCSI cell instance
|
||||
|
||||
DMAChannel* snd_out_dma;
|
||||
|
||||
@ -19,8 +19,9 @@ You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include "dmacore.h"
|
||||
#include "endianswap.h"
|
||||
#include "soundserver.h"
|
||||
//#include <thirdparty/libsoundio/soundio/soundio.h>
|
||||
#include <loguru.hpp>
|
||||
#include <cubeb/cubeb.h>
|
||||
#ifdef _WIN32
|
||||
@ -124,9 +125,54 @@ void SoundServer::shutdown()
|
||||
LOG_F(INFO, "Sound Server shut down.");
|
||||
}
|
||||
|
||||
long sound_out_callback(cubeb_stream *stream, void *user_data,
|
||||
void const *input_buffer, void *output_buffer,
|
||||
long req_frames)
|
||||
{
|
||||
uint8_t *p_in;
|
||||
int16_t* in_buf, * out_buf;
|
||||
uint32_t got_len;
|
||||
long frames, out_frames;
|
||||
DmaOutChannel *dma_ch = static_cast<DmaOutChannel*>(user_data); /* C API baby! */
|
||||
|
||||
int SoundServer::open_out_stream(uint32_t sample_rate, cubeb_data_callback data_cb,
|
||||
cubeb_state_callback status_cb, void *user_data)
|
||||
if (!dma_ch->is_active()) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
out_buf = (int16_t*)output_buffer;
|
||||
|
||||
out_frames = 0;
|
||||
|
||||
while (req_frames > 0) {
|
||||
if (!dma_ch->pull_data(req_frames << 2, &got_len, &p_in)) {
|
||||
frames = got_len >> 2;
|
||||
|
||||
in_buf = (int16_t*)p_in;
|
||||
|
||||
for (int i = frames; i > 0; i--) {
|
||||
out_buf[0] = BYTESWAP_16(in_buf[0]);
|
||||
out_buf[1] = BYTESWAP_16(in_buf[1]);
|
||||
in_buf += 2;
|
||||
out_buf += 2;
|
||||
}
|
||||
|
||||
req_frames -= frames;
|
||||
out_frames += frames;
|
||||
}
|
||||
else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return out_frames;
|
||||
}
|
||||
|
||||
static void status_callback(cubeb_stream *stream, void *user_data, cubeb_state state)
|
||||
{
|
||||
LOG_F(9, "Cubeb status callback fired, status = %d", state);
|
||||
}
|
||||
|
||||
int SoundServer::open_out_stream(uint32_t sample_rate, void *user_data)
|
||||
{
|
||||
int res;
|
||||
uint32_t latency_frames;
|
||||
@ -148,7 +194,7 @@ int SoundServer::open_out_stream(uint32_t sample_rate, cubeb_data_callback data_
|
||||
|
||||
res = cubeb_stream_init(this->cubeb_ctx, &this->out_stream, "SndOut stream",
|
||||
NULL, NULL, NULL, ¶ms, latency_frames,
|
||||
data_cb, status_cb, user_data);
|
||||
sound_out_callback, status_callback, user_data);
|
||||
if (res != CUBEB_OK) {
|
||||
LOG_F(ERROR, "Could not open sound output stream, error: %d", res);
|
||||
return -1;
|
||||
|
||||
@ -35,7 +35,6 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
#define SOUND_SERVER_H
|
||||
|
||||
#include "hwcomponent.h"
|
||||
//#include <thirdparty/libsoundio/soundio/soundio.h>
|
||||
#include <cubeb/cubeb.h>
|
||||
|
||||
enum {
|
||||
@ -52,32 +51,19 @@ public:
|
||||
|
||||
int start();
|
||||
void shutdown();
|
||||
int open_out_stream(uint32_t sample_rate, cubeb_data_callback data_cb,
|
||||
cubeb_state_callback status_cb, void *user_data);
|
||||
int open_out_stream(uint32_t sample_rate, void *user_data);
|
||||
int start_out_stream();
|
||||
void close_out_stream();
|
||||
|
||||
bool supports_type(HWCompType type) { return type == HWCompType::SND_SERVER; };
|
||||
|
||||
#if 0
|
||||
SoundIoDevice *get_out_device() {
|
||||
if (this->status == SND_SERVER_UP) {
|
||||
return this->out_device;
|
||||
} else {
|
||||
return NULL;
|
||||
}
|
||||
bool supports_type(HWCompType type) {
|
||||
return type == HWCompType::SND_SERVER;
|
||||
};
|
||||
#endif
|
||||
|
||||
private:
|
||||
int status; /* server status */
|
||||
cubeb *cubeb_ctx;
|
||||
|
||||
cubeb_stream *out_stream;
|
||||
//SoundIo *soundio;
|
||||
//int out_dev_index; /* current output device index */
|
||||
//SoundIoDevice *out_device; /* current output device instance */
|
||||
//SoundIoOutStream *outstream;
|
||||
};
|
||||
|
||||
#endif /* SOUND_SERVER_H */
|
||||
|
||||
@ -28,6 +28,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
#include "devices/amic.h"
|
||||
#include "devices/hmc.h"
|
||||
#include "devices/machineid.h"
|
||||
#include "devices/soundserver.h"
|
||||
#include "machinebase.h"
|
||||
#include "machineproperties.h"
|
||||
#include <loguru.hpp>
|
||||
@ -47,6 +48,9 @@ int create_pdm(std::string& id) {
|
||||
/* register HMC memory controller */
|
||||
gMachineObj->add_component("HMC", new HMC);
|
||||
|
||||
/* start the sound server. */
|
||||
gMachineObj->add_component("SoundServer", new SoundServer());
|
||||
|
||||
/* register AMIC I/O controller */
|
||||
gMachineObj->add_component("AMIC", new AMIC);
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user