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69 Commits
Author SHA1 Message Date
dingusdev 79f1edc102 Adding additional regs in AMIC 2026-07-24 20:58:04 -07:00
Tim Jarzombekandjoevt 3ecf59233c amic: Make RcvDma fields unique_ptr like XmitDma. 
From earlier commit:
"amic: Emulate SCC receive DMA registers instead of returning random
values."

Co-Authored-By: joevt <joevt@shaw.ca>
 2026-07-24 07:44:02 -07:00
joevt 2a3b6d9cb7 dmacore: Rename is_ready. 
So that it is not confused with other contexts.
 2026-07-14 18:48:10 -07:00
joevt 37da4d3162 dmacore: Add DmaPushResult. 2026-07-02 08:10:04 -07:00
Maxim Poliakovski 30d95e1409 dmacore: add support for several channels per device. 2026-05-29 23:22:16 +02:00
Tim Jarzombek ad4515721b amic: Emulate SCC receive DMA registers instead of returning random values. 
The SCC DMA Receive control registers previously returned std::rand(),
a workaround to unblock Mac OS 8.5/8.5.1 boot which polls these
registers expecting specific bit patterns. This caused non-deterministic
bimodal boot times (~10s vs ~18s) on Power Mac 6100 as the guest would
sometimes enter a ~7s polling loop depending on the random value.

Add AmicSerialRcvDma to properly track the control register and byte
count state for both SCC receive channels. Writes now update the status
byte using the same bit manipulation as the transmit DMA channels, and
reads return the tracked state. Also wire up the RX byte count registers
(SCC_RXA/B_Byte_Cnt_Hi/Lo) which were previously ignored on write.
 2026-03-08 18:34:00 -07:00
dingusdev 213dd4c16e Update copyright info further 2026-01-30 08:12:04 -07:00
Maxim Poliakovski e75ee8d32a Update copyright year. 2026-01-30 12:15:00 +01:00
joevt 5412fbc198 Remove superfluous semicolons. 2025-06-27 19:01:14 -07:00
Maxim Poliakovski 2068803c6b amic: simplify VIA2_IFR writes. 2025-05-29 15:40:26 +02:00
joevt 35f2ce14f1 Add type and description to device descriptors. 
Add supports_types to device descriptors so that we can determine
supported types without having to create the hardware device.
Add description so that each device can have an optional description.
 2025-05-28 17:58:08 +02:00
joevt a8b6a16e1a Move ScsiCurio to Sc53C94. 2025-05-27 07:56:26 -07:00
dingusdev 65d414bd4e Fixing compile issues 2025-04-28 15:05:40 +02:00
joevt fa5e8b0bf8 amic: Return random value for SCC DMA Rcv. 
This allows Mac OS 8.5 and Mac OS 8.5.1 to boot from SCSI of Power Mac 6100.
 2025-04-28 15:05:40 +02:00
joevt 24a18f7769 amic: Define local variable in minimum scope. 2025-04-27 07:33:30 -07:00
Maxim Poliakovski ab8abf39cc amic: remove deprecated SCSI DMA code. 2025-04-11 19:24:56 +02:00
Maxim Poliakovski f6f11e81e9 Switch AMIC SCSI DMA to the new DMA API. 2025-04-01 04:02:51 +02:00
joevt 101bb826f1 Make irq_id 64 bits. 
- So that DMA and other interrupts can fit without overlap.
- To simplify conversion to interrupt mask.
- To reduce variables, defines, and code.
 2025-02-10 06:49:39 -07:00
joevt 1bf4073fa7 macio: Range check scc compatible register index. 
Also, non-compatible registers don't begin until 0x60 for SCC compatible addressing.
 2024-12-04 21:03:09 -07:00
Mihai Parparita 4479387580 Remove using namespace std from remaining header files 
It's somewhat of an anti-pattern, and can lead to conflicts with
other symbols (e.g. the Windows build failure in https://github.com/dingusdev/dingusppc/actions/runs/11762906342/job/32766290288,
I removed `using namespace std` from timermanager.h to fix that one).
 2024-11-30 20:01:09 -08:00
joevt 6154b7cbe2 amic: Add modem port transmit DMA read. 2024-11-11 21:10:17 -07:00
joevt 4c9b125cc8 amic: Add modem port transmit DMA. 2024-03-14 08:05:42 -07:00
joevt e1e00c951b sc53c94: Split real_dma_xfer. 
Create real_dma_xfer_out and real_dma_xfer_in methods.
 2024-03-14 08:01:07 -07:00
Mihai Parparita f218a38294 Ensure that AMIC pseudo-VBL timer is stopped when the object is destroyed. 2024-03-07 23:31:44 -08:00
joevt 1e78512c95 Rename Curio and Mesh. 2024-03-02 11:12:45 -07:00
joevt b0dc893a05 dma: Add name to dma classes. 
For logging purposes, each DMA channel should have a name.
 2024-02-19 15:30:20 +01:00
Maxim Poliakovski 5902cd5c28 Wire SCSI_CURIO interrupt. 2024-02-12 01:46:21 +01:00
Maxim Poliakovski 58281520d3 Implement writes to SCSI Pseudo-DMA register. 2023-12-04 21:41:55 +01:00
Maxim Poliakovski 58dacfa263 amic: improve VIA2_IFR and VIA2_IER emulation. 2023-12-04 21:41:55 +01:00
Maxim Poliakovski ae903082d8 amic: implement SCSI DRQ callback. 2023-12-04 21:41:55 +01:00
Maxim Poliakovski 46961711e4 amic: stub for Ch-B serial xmit DMA. 2023-12-01 22:01:48 +01:00
Maxim Poliakovski b7341d0ab8 amic: implement sound out DMA IRQ. 2023-11-15 19:01:54 +01:00
Mihai Parparita e011d86742 amic: don't reset cur_buf_pos if we've drained the DMA buffer 
Otherwise if pull_data is called again, it will think that it still
has data available in the buffer (rem_len will be non-zero) and
random data at the buffer location will be returned.

This manifested itself as noise being played back in the JS
implementation of the SoundServer. The cubeb implementation was not
affected because it stops polling once it's told it has no more
data in the buffer. Both approaches are valid (the JS version pads
data with silence), and the DMA buffer should support both.
 2023-11-06 22:33:00 -08:00
Maxim Poliakovski 72d45fb0de amic: switch DMA code to mmu_map_dma_mem. 2023-10-02 14:48:25 +02:00
Maxim Poliakovski 5b90a3e21d AMIC: rework and improve interrupts. 2023-08-01 17:42:52 +02:00
Maxim Poliakovski f809124a2e Improve SCSI bus registration. 2023-05-30 19:46:27 +02:00
Maxim Poliakovski 03595c3940 Merge remote-tracking branch 'origin/machine-yosemite' 2023-04-21 12:49:58 +02:00
Maxim Poliakovski 4093c6e83c amic: fix SCSI DMA to match newer MMU API. 2023-04-17 01:32:29 +02:00
Maxim Poliakovski cf0d361918 Merge 'hard-disks' branch. 2023-04-17 01:20:38 +02:00
Maxim Poliakovski 3234f21cab Overhaul audio codec classes. 2023-02-25 18:14:42 +01:00
Maxim Poliakovski 9f4c248e4c Rework DBDMA logic for bidirectional channels. 2022-11-17 18:03:18 +01:00
Maxim Poliakovski c87fc10376 amic: implement SCSI DMA. 2022-11-07 21:56:27 +01:00
Maxim Poliakovski 6ffe28a8a4 Implement SCSI Pseudo-DMA register on PDM. 2022-11-01 01:17:50 +01:00
Maxim Poliakovski 3f2b77fd59 amic: basic writing to the VIA2 IFR. 2022-10-31 23:21:35 +01:00
Maxim Poliakovski 293c5a40f3 amic: fix PDM interrupts. 2022-08-24 14:58:07 +02:00
joevt 3ee2ea1871 Fix read/write argument names 
base class uses reg_start so derived classes should do the same.
Some derived class already uses reg_start for read method.
 2022-08-22 17:16:22 -07:00
Maxim Poliakovski 3c062443f6 PDM: factory test control. 2022-07-20 01:36:05 +02:00
Maxim Poliakovski c0078ce97d Refactor MachineBase and MachineFactory classes. 
Adding new machines is much easier now.
A significant amount of duplicated code has been reduced.
 2022-07-18 20:27:34 +02:00
Maxim Poliakovski ca51c34157 amic: self-registration with the device registry. 2022-07-18 20:27:34 +02:00
Maxim Poliakovski da25e72668 Fix ESCC register addressing. 2022-05-21 14:51:27 +02:00