Commit Graph

825 Commits

Author SHA1 Message Date
dingusdev
f792b38ea3 Started SCSI command reading 2022-10-26 09:18:32 -07:00
Maxim Poliakovski
4f6bd16f3a sc53c94: support selection and command transfer. 2022-10-25 03:03:15 +02:00
Maxim Poliakovski
c51ea575ca scsi_bus: various fixes and improvements. 2022-10-25 03:03:15 +02:00
Maxim Poliakovski
9efac80271 scsi_hd: fix notify() method. 2022-10-25 03:03:15 +02:00
Maxim Poliakovski
eeb576a927 Improve ScsiDevice class. 2022-10-25 02:53:21 +02:00
dingusdev
3af9729e5b Modest refactoring for SCSI HDs 2022-10-23 16:45:58 -07:00
Maxim Poliakovski
a085d55d13 machinepdm: attach SCSI HD to the main bus, ID 0. 2022-10-22 23:42:37 +02:00
Maxim Poliakovski
c2abc89a3b Fix SCSI HD interface so it can be added to a bus. 2022-10-22 23:41:19 +02:00
dingusdev
aa1d23e08b Fixed hard disk support
Compiles, still unfinished
2022-10-22 11:41:52 -07:00
dingusdev
ee9573327c Reorganized hard disk code
Not compiling yet.
2022-10-08 16:51:54 -07:00
dingusdev
a61dd5701a Initial prototyping for hard disks 2022-09-01 22:10:52 -07:00
Maxim Poliakovski
5b08f283e5 Hacks for debugging HW interrupts. 2022-08-27 17:38:53 +02:00
Maxim Poliakovski
50053a52dc debugger: disable nvedit command on Windows hosts. 2022-08-26 11:13:33 +02:00
dingusdev
4a8a712868
Merge pull request #31 from joevt/master
Fix return value for bad pci config address
2022-08-24 20:31:11 -07:00
joevt
e41b196977 Fix return value for bad pci config address
PCI config read fails should return all 1 bits.
All unused registers in an existing PCI device should return 0.

Because that's what my Power Mac 8600 returns when I run my Open Firmware lspci command.
Any bus/device/function that doesn't exist returns FF and won't be listed by lspci.
Any registers that are unused will show as 00 in the lspci output.

Make grackle log bus:device.function @register.size in all cases.
2022-08-24 07:58:12 -07:00
Maxim Poliakovski
6c59bf4203 heathrow: fix interrupt processing. 2022-08-24 14:58:07 +02:00
Maxim Poliakovski
bb77b2d525 grandcentral: fix interrupt processing. 2022-08-24 14:58:07 +02:00
Maxim Poliakovski
293c5a40f3 amic: fix PDM interrupts. 2022-08-24 14:58:07 +02:00
Maxim Poliakovski
994f8d7155 viacuda: fix interrupts. 2022-08-24 14:15:48 +02:00
Maxim Poliakovski
b38d00ce2d cpu/ppc: improve support for external interrupts.
Support generating of external interrupt exception
in MTMSR and RFI when MSR[EE] is re-enabled and
external interrupt still pending.
2022-08-24 14:15:47 +02:00
Maxim Poliakovski
141a276c5b
Merge pull request #30 from joevt/master
more fixes
2022-08-23 02:56:26 +02:00
joevt
1c1300ce5a Add nvedit
setenv doesn't allow entering strings that include multiple lines which is useful for nvramrc.

nvedit uses CTRL-C to end editing, like Open Firmware. It does not support deleting characters from a line or editing previous lines or any other special keys. It doesn't have nvstore or nvquit or nvrecover commands. Basically, you should edit your nvramrc in a text editor, then copy and paste into the debugger.
2022-08-22 17:21:58 -07:00
joevt
1ccc8d1a25 Fix setenv and printenv
- Allow changing integer variables. Previously they could not be changed.
- Allow changing string variables. Previously they could only be changed if their length increased.
- printenv had a bug with strings longer than 32 characters.
- printenv now translates carriage return (used in nvramrc) as endl (which should perform carriage return and linefeed)
- For integers, setenv assumes decimal number input but if that fails it will try hex conversion. 0x prefix for hex numbers is optional unless the number only has digits 0 - 9.
- setenv converts linefeed to carriage return for string variables. nvramrc requires this for proper editing in Open Firmware.
- Added Open Firmware 2.4 nvram field names to OfNvramHdr comments.
2022-08-22 17:20:04 -07:00
joevt
67b7c86755 serial backend socket fixes
- increase delay to 800 consecutive characters (reduces times when Open Firmware throws away pasted text)
- don't log the first sock read error (when accept hasn't been called yet) but do log sock read error if accept was called successfully already.
2022-08-22 17:16:22 -07:00
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
joevt
3b4f40635a Register offsets should be logged as hex
- decimal values are confusing (can't tell if 12 means 12 or 18)
- most specs show hex values for register offsets.
2022-08-22 17:16:22 -07:00
joevt
c644d1609f PCI Expansion ROM size should be power of 2
The expansion rom base register indicates the size of the expansion rom by the number of bits that remain zero after code attempts to set them all to 1. For example, a result of fffe0000 means 128K. The 11 least significant bits are ignored in the size calculation, which means the minimum rom size is indicated by fffff800 = 2K.

Handle the case where an expansion rom file might not have a size that is a multiple of 2 or is not greater than 2K.
Bytes between the end of the file and the end of the calculated rom size are set to 0xff.
2022-08-22 17:16:22 -07:00
joevt
d843091a4d Allow setting PCI capabilities pointer
The capabilities pointer is usually a constant, but whatever the capabilities pointer points to has to be handled by the derived class.
2022-08-22 17:16:22 -07:00
joevt
6fad095730 Allow setting PCI status register
Don't always return 0 when reading it. The status register contains some bits that Open Firmware uses to set some properties.
A PCI device can set a default status register value to set those bits.
	this->status = 0x02B0; // 0000  0 01 0  1 0 1 1  0000 Capabilities List, 66 MHz, Fast Back-to-Back, DevSel Speed: Medium
2022-08-22 17:16:22 -07:00
joevt
6af8b52376 changes to pci logging
For invalid or unsupported PCI accesses, do the following:
- log a device's full pci address using pciutils setpci command format bb:dd.f @rr.s (bus:device:function @register+offset.size).
- report as read or write access.
- log value for writes.
- bus, device, function, and register values cannot be determined from Invalid IDSEL values so they will output as ??.
- for invalid IDSEL values, report the entire value of the config_addr.
- for valid IDSEL values, the bus number cannot be determined since IDSEL only specifies device number. It's probably bus 00 but we'll show ?? to indicate an IDSEL type access.

Add missing config type read access logging for chaos.
2022-08-22 17:16:17 -07:00
joevt
fca6cb11b6 Add info for possible grackle PCI devices
Devices that are not probed by Open Firmware might still be usable by Mac OS X or Linux if they can enumerate PCI devices without using Open Firmware's device tree.
A patch in nvramrc can make Open Firmware probe all the devices.
The point is that the emulation does not need to be limited to 5 slots.
2022-08-22 17:07:50 -07:00
joevt
753427f262 Add known Open Firmware 1.0.5 bugs
Additional notes about get-inherited-property and map-in.
2022-08-22 17:07:50 -07:00
joevt
6fbe03adb3 Add some Open Firmware bugs 2022-08-22 17:07:50 -07:00
joevt
f78db220bc Add @startvec notes
because it's not the same as StartVec
2022-08-22 17:07:50 -07:00
joevt
63248b0fa2 Set Bandit's HWComponent name
Bandit has two names:
- PCIDevice->pci_name
- PCIDevice:MMIODevice:HWComponent->name
The latter was not being set.
2022-08-22 17:07:50 -07:00
joevt
cd122ce263 Open Firmware is two words
Not OpenFirmware.
Also fixed a spelling mistake and removed some extra spaces.
2022-08-22 16:47:38 -07:00
Maxim Poliakovski
e097b7a0a1 bandit: fix return value for empty slots. 2022-08-22 15:05:35 +02:00
Maxim Poliakovski
32b8c8ed43 pcidevice: fix expansion ROM mapping. 2022-08-20 12:51:08 +02:00
Maxim Poliakovski
5220b03f0f MPC106: insert PCI devices using the CLI. 2022-08-19 20:07:22 +02:00
Maxim Poliakovski
336ea14422 machinefactory: don't crash when property help is missing. 2022-08-19 19:44:10 +02:00
Maxim Poliakovski
56c54e4c8c pcihost: add attach_pci_device method. 2022-08-19 18:55:33 +02:00
Maxim Poliakovski
f4c0499078 deviceregistry: add device_registered method. 2022-08-19 18:53:05 +02:00
Maxim Poliakovski
4964008511 machineid: improve Gossamer ID description. 2022-08-15 20:49:06 +02:00
Maxim Poliakovski
c5ecdb840d machinegossamer: proper system & clocks configuration. 2022-08-15 14:51:37 +02:00
Maxim Poliakovski
0dbcda5710 machinegossamer: system register definitions. 2022-08-15 14:50:49 +02:00
Maxim Poliakovski
8c0f391548 ppcemu: add enums for HID0 and HID1. 2022-08-15 14:45:55 +02:00
dingusdev
7f57e96335
Merge pull request #29 from joevt/master
Add socket option for serial backend
2022-08-14 16:59:08 -07:00
joevt
93fae1ee68 Merge remote-tracking branch 'upstream/master' 2022-08-14 16:38:51 -07:00
joevt
650c2c88dd Add socket type for serial_backend
With the option --serial_backend=socket, input and output to a serial port will use a SOCK_STREAM type UNIX domain socket. This allows you to do Open Firmware in one window, while the first window can be used for dingusppc debugger.

Other fixes:

- Added SIGTERM handler so that if the user force quits dingusppc, the terminal settings are properly restored. A user needs to force quit when --serial_backend=stdio and Open Firmware is taking input from ttya. If terminal settings are not restored, then running dingusppc after a force quit will cause Control-C to not work when --serial_backend is not stdio.

- Added a couple numbers to rcv_char_available - 15 is the number of consecutive characters that can processed. 400 is the total number of calls to rcv_char_available after 15 consecutive characters have been read before additional characters can be read. This delay in processing additional characters allows pasting arbitrarily large amounts of text into Open Firmware. A real serial port terminal app might have a text pacing option to limit the number of output characters per second but that is not an option since the emulator is not limiting character data to a baud rate.

Related Notes:

The socket file is created when dingusppc starts.
The socket file is named dingusppcsocket and is created in the current working directory (usually where the executable is located and where the dingusppc.log, nvram.bin, and pram.bin files are created).
The socket file is not visible in the Finder. You can see it in the terminal using the ls command.
The socket file can be used with the following command in a new terminal window:
socat UNIX-CLIENT:dingussocket -,cs8,parenb=0,echo=0,icanon=0,isig=0,icrnl=0
When dingusppc quits, the socat command ends.

Other notes:

The dingusppc --debugger option causes dingusppc to enter the debugger before Open Firmware outputs anything. You can connect to the socket while dingusppc is in the debugger. Then enter the go command to leave the debugger and start Open Firmware. However, since the startup sound takes a long time, you can probably connect to the socket before Open Firmware starts even without the --debugger option. It's like with a real Power Mac - you have a few seconds to hold Command-Option-O-F except in this case you have a few seconds to press the up arrow and press enter (for executing the last command from the terminal command history) and if you do it too late you'll still get into Open Firmware if auto-boot? was previously set to false using the dingusppc debugger which is actually the only way to get into Open Firmware since a keyboard is currently not emulated?).

To set ttya as the input and output device in Open Firmware, you can use the setenv command in the dingusppc debugger. The device path needs to be longer than the current device path (because code for handling shortening of the paths is currently not implemented). For example, ttya can replace kbd for the input-device, but to replace screen for the output-device you need to add some extra characters like this: ttya,11 (I think the number is for baud but we're not using a real serial port so baud doesn't matter).

Future ideas:

- Have dingusppc execute the socat command for you so that it opens a terminal window before Open Firmware starts.
- Add another --serial_backend for the printer port (ttyb) since now we have more than one type of serial backend. If both serial ports use socket backend, then a different name for the second socket is required.
- Have an option to make dingusppc block until something connects to the socket (this means calling accept after listen instead of after select).
- Test compatibility with serial port socket created by Parallels Desktop virtual machines in macOS.
- Find a solution that works with Windows.
- Test with Linux.
- Create a serial_backend type for tty devices. I suppose maybe socat can pipe the file socket to tty but a direct connection might be easier to setup.
- Allow using a socket created by some other app (for example, socat UNIX-LISTEN). This means dingusppc will assume the client role and will call connect instead of accept.
2022-08-14 16:36:52 -07:00
Maxim Poliakovski
3f3af68582 machinegossamer: add Whisper ID PROM. 2022-08-14 23:01:55 +02:00