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Spirantho

Silicon Image devices on classic AmigaOS 4

Posted on: 2007/12/17 12:39 #441

Quite a regular

Hi everybody,

Am I the only person who's tried to attach a Sii card to an A4000 with AmigaOS 4? I noticed the kmod files aren't present on the classic version so I copied them over from my AmigaOne. In theory it should work, as long as the PCI wrapper is good enough for my Prometheus and as long as it successfully realises that DMA doesn't work (it shouldn't rely on DMA because many old IDE HDs don't support it).

I've got my A4000 giving the correct version number for sii0680ide.device but in Media Toolbox it just says there's no devices connected.

How do we get this to work on a Classic? The hard part is already done, after all....
Of course the Sii cards will be slow because there's no DMA, but then the Prometheus is slower than the fastest Non-DMA mode anyway (Prometheus is I think 12MB/Sec, PIO goes to 16MB/Sec in theory).

Any thoughts?

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Spirantho

Re: Will the release of AOS4 spur development?

Posted on: 2007/12/17 11:34 #442

Quite a regular

Just want to put in another vote for WxWidgets....

As a fan of Audacity I'd love to see an OS4 native version... then I could do my needle-drops (vinyl->CD) without going near my PC! :)

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Spirantho

Re: Cyberstorm PPC - PPC dead

Posted on: 2007/12/5 10:58 #443

Quite a regular

@mike

Quote:

mike wrote:
@Crumb

Im having troubles with mine too, it doesnt map any memory. That woudlnt have happen to your's too by any chance would it? Im jumping trough hoops trying to get it up and running.

My Blizzard 1230-II does that....

... but as long as you know the size of the memory installed and the address it's installed at, you can use AddMem to add your RAM directly. Have you tried that? I can let you know the address of my memory if you like on my CS-PPC (I have 128MB).

Incidentally, on the Blizzard, the RAM was made up of 2 SIMMs, one expanded upwards from an address ($8000000 or something) and one expanded downwards, so if I had a 4MB and an 8MB SIMM, I'd add the memory at ($8000000 - 4MB) with 12MB of size. If you see what I mean.

--
Ian Gledhill
ian.gledhill@btinternit.com (except it should be internEt of course...!)
Check out my company's shop: http://www.mutant-caterpillar.co.uk/shop/ - specialising in Sinclair Spectrums but will be adding Amigas!

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Spirantho

Re: Where to buy AOS4 then?

Posted on: 2007/11/22 11:46 #444

Quite a regular

@Kicko

On anything that's possibly going to be over-subscribed (let's face it - nobody actually knows how many copies are going to be sold) it's a good idea to get first in the queue, don't you think?

Quote:

Man these folk can't wait

You did mean to be ironic, right? :)

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Spirantho

Where to buy AOS4 then?

Posted on: 2007/11/21 11:04 #445

Quite a regular

Hi everybody,

I've been looking on amigakit.com for AmigaOS4 as I want to get it ASAP (naturally!).. but it's not there.
I know you can get it from acube but they're not in the UK, so I'd rather not risk high shipping costs and taxes and stuff.

Where's everyone else getting their copies from?

Ta!

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Spirantho

Re: There is hope for OS4 on the Classic.

Posted on: 2007/11/20 17:26 #446

Quite a regular

@xeron

DMAing across cards may work on some systems (such as a reflashed Prometheus) but it's not ideal as if you want to do anything fancy you need access to main memory as well. On the other hand, maybe you could DMA to graphics memory and then read that manually.. so I suppose it may be possible after all.

My Prometheus at the moment doesn't have the newer firmware so that won't work though... maybe someone else can try it?

Of course it won't work at the moment anyway because there's a bug in the StartDMA() function which means that you can't do a StartDMA on memory on the graphics card, so you can't DMA directly to the memory card either at the moment. Rogue said he'd fix this for the next version I think but I can imagine DMAing from one PCI card to another isn't high on his priority list...

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Spirantho

Re: A4000T PPC What's it worth?

Posted on: 2007/11/20 11:32 #447

Quite a regular

@Mikey_C

An A4000T with a CSPPC? ?200? You could be looking at 10x times in this market at the moment....

@swayton

if you put it on eBay you'll be looking at several hundred pounds - the CSPPC alone is worth probably about ?300-?400, the Picasso IV is a sought after card too.

I'd put a reserve of ?600 on it as it'll get more than that easily if you advertise it well enough. I wouldn't accept any less on a system like that.

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Spirantho

Re: There is hope for OS4 on the Classic.

Posted on: 2007/11/20 11:29 #448

Quite a regular

Absolutely. Nice that my CSPPC which I bought when it was new (and very expensive) is finally going to be able to be used properly.

Of course ironically I have an A1 now so it's less useful than it would have been 10 years ago, but I'm just grateful it's out now! Can't do everything on an A1 after all (anything which uses OCS/ECS/AGA screenmodes for starters!).

It's a shame there's no DMA - that means no TV card drivers either, of course - but that's just the problem with these PCI adaptors on the Amiga, it seems. Can't everything, we should be thankful for what we've got, even if it's not perfect.

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Spirantho

Re: FUSE (Spectrum emulator) updated

Posted on: 2007/11/19 18:30 #449

Quite a regular

@Chris

Nice work.... will have to try that.

BTW, what music did you use to check that sound was working ok? 75p and a packet of Rolos says you used Auf Wiedersehn Monty at least once! :)

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Spirantho

Re: RAID and AmigaOS 4.0

Posted on: 2007/11/8 11:07 #450

Quite a regular

Quote:

joerg wrote:
On an A1 you additionally have to use at least two controllers ... With a single controller software RAID can only increase the seek speed, but not the transfer speed.

Why do you say this? My understanding is that the bottleneck in an IDE system is not the transfer but the HD's read/write performance. Halve the amount of data the disk has to write and performance will double. The controller is capable of 133MB/Sec, just the disks that aren't, so even on one controller surely you'll get a good speed difference in transfer speed, as effectively the bottleneck's width has been doubled...?

Edit: quoted the wrong text!

Edited by Spirantho on 2007/11/8 11:25:02

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Spirantho

Re: Prometheus DMA for OS4

Posted on: 2007/10/4 10:44 #451

Quite a regular

@benny

Quite possibly. But that was 2 years ago, and I don't want to pester anyone particularly. I was just thinking because the Prometheus is the PCI card I believe Hyperion are using there must be some progress surely...? If I'm going to get TV cards working under AOS 4.0 I need a fully DMA capable Prometheus....

Thanks for the help though! Maybe I'll drop him a line anyway and see.

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Spirantho

Re: Getting a CSPPC ready for OS4...!

Posted on: 2007/10/3 16:21 #452

Quite a regular

@Amigaz

I presume if I need a 12V fan then I need one which uses a standard Molex connector? The 3-pin CSPPC header is presumably 5V only...?

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Spirantho

Re: Getting a CSPPC ready for OS4...!

Posted on: 2007/10/3 15:38 #453

Quite a regular

@Amigaz

Do you have a particular model that you know works? Or anyone else? I want to be sure it'll fit and not damage anything....

Topic | Forum

Spirantho

Re: Getting a CSPPC ready for OS4...!

Posted on: 2007/10/3 11:34 #454

Quite a regular

@thomas

So if I replace it with another similar fan it'll be sufficient cooling? The fan just seems rather small is all...

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Spirantho

Prometheus DMA for OS4

Posted on: 2007/10/3 10:52 #455

Quite a regular

Hi again,

As I'm writing DMA-requiring drivers for OS4 (the TV card) I was wondering: does anyone know the status of the DMA firmware update for the Prometheus? As I understand it the currently released firmware is somewhat lacking for DMA and TV cards rely on it!

Thanks!

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Spirantho

Getting a CSPPC ready for OS4...!

Posted on: 2007/10/3 10:48 #456

Quite a regular

Hi everybody,

As well as my trusty A1, I want to get my CSPPC powered A4000 running AOS 4.0.

One of the fins on my PPC fan broke off a while ago, though, and I'm not sure it's terribly adequate for running a complete OS anyway. What do people suggest to replace the PPC fan with? Preferably something not too noisy. I imagine because it's a surface mounted chip I'll need to use thermal paste glue rather than the normal paste.

What have other people done? My CSPPC is too valuable not to be sure it's safe!

Thanks!

(Edit: Oops - wrong OS4 forum - replace this is the Hardware AmigaOS 4.0 forum if you like - though it's probably the same people reading it anyway. :) )

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Spirantho

Re: RAID and AmigaOS 4.0

Posted on: 2007/10/3 10:46 #457

Quite a regular

If anyopne wants me to test let me know and I'll get hold of a couple of hard disks to test with. I'm using an A1XE G4@800 with a Sil680 card.

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Spirantho

Re: help! don't know which Mediator to buy!

Posted on: 2007/9/10 15:46 #458

Quite a regular

I think you can indeed use 3 different screens for different apps. However, this is very different from having a multi-screen desktop. Are you sure this is what you want?

If you want to do things like move the mouse off the left hand side of one screen and come onto the right of the other then I'm afraid you're out of luck. And to be honest because the Amiga has such good screen-handling anyway, you don't gain much by having three monitors.

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Spirantho

Re: AmiTV 0.4 (CX2388X and Bt8x8)

Posted on: 2007/9/5 11:58 #459

Quite a regular

@Raziel

Quote:

Raziel wrote:
@Spirantho

Err, not to sound pesky, but could you (if time allows) comment on #26, please?

I got myself a PCI slot freed and am seriously looking to get a TV card...

If you wanted a reply from me it wasn't a good idea to start the post with "@Chris" in post 26. :)

In fact, yes, you need a satellite set-top box with SCART or composite out and you should be just fine. But I can't do satellite decoding myself for the reasons you mentioned. In Britain I imagine a standard Sky box or derivative would work perfectly.

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Spirantho

Re: There is hope for OS4 on the Classic.

Posted on: 2007/8/30 11:46 #460

Quite a regular

@xeron

Quote:

xeron wrote:
@Spirantho
AFAIK, the OS4 kernel doesn't explicitly stop PCI cards on mediator from doing DMA, its just that you can't DMA direct from a card to fastmem. Its just that OS4 doesn't allow you to reserve some gfx card memory as a temporary DMA buffer if you use its native video card driver.

No, the kernel won't stop it exactly.... but the API will probably catch the call to StartDMA() and say that that's impossible on the Mediator, unless Rogue specifically allows DMAing into graphics card memory and Bus-Mastering works properly on the Mediator. As you need to call StartDMA to get the proper address to DMA into (even if it's in the graphics card RAM) you still need to go via OS4 - if OS4 can't grok Mediator DMA then that means no Bus-Mastering.

In other words, it's possible, but Rogue'll have to put in a special case to allow DMAing if the target address is on the graphics card, which sounds like a lot of work for little return so I don't expect to see it.

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