possible fix for misbehaving hdsp

Hi,

Could people experiencing problems with their hdsp (namely Tim and Paul) try the attached patch ?

Thanks,
Thomas

@@ -4982,6 +4982,16 @@
 	tasklet_init(&hdsp->midi_tasklet, hdsp_midi_tasklet, (unsigned long)hdsp);
 	
 	pci_read_config_word(hdsp->pci, PCI_CLASS_REVISION, &hdsp->firmware_rev);
+	
+	/* From Martin Bj�rnsen :
+	    "It is important that the card's latency timer register in
+	    the PCI configuration space is set to a value much larger
+	    than 0 by the computer's BIOS or the driver.
+	    The windows driver always sets this 8 bit register [...]
+	    to its maximum 255 to avoid problems with some computers."
+	*/
+	pci_write_config_byte(hdsp->pci, PCI_LATENCY_TIMER, 0xFF);
+	
 	strcpy(card->driver, "H-DSP");
 	strcpy(card->mixername, "Xilinx FPGA");
 

At Mon, 26 Jan 2004 14:54:42 +0100,

it includes a non-ASCII letter

Of course -> Martin Bjoernsen.
IIRC, there is another occurence of this in the driver code, if you want to fix it also.

Thanks,
Thomas

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At Mon, 26 Jan 2004 15:54:06 +0100,

ok, i applied the patch to cvs.

yep, there it is. but i don't think it's necessary to remove it unless someone complains :)

i asked it because i'm using UTF-8 as default now. the handling of non-ASCII via cvs/bk is very sensitive.

thanks,

Takashi

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i tried the patch you sent me ... no success ... i tried to play a soundfile with aplay using different period-sizes ...
the file always had the same distortions ...
btw, the patch just changed the default pci latency ... i did that a few weeks ago manually, using every setup i could think of ... it doesn't seem to be related to this...

i'm still confused of the third line (dmesg):

cs: cb_alloc(bus 7): vendor 0x10ee, device 0x3fc5
PCI: Enabling device 07:00.0 (0080 -> 0082)
ALSA ../../alsa-kernel/pci/rme9652/hdsp.c:663: Hammerfall-DSP: no Digiface or Multiface connected!
ALSA ../../alsa-kernel/pci/rme9652/hdsp.c:5052: card initialization pending : waiting for firmware

alsa doesn't seem to realize that the multiface is connected ... is this ok?

and:
ALSA ../../alsa-kernel/pci/rme9652/hdsp.c:807: wait for FIFO status <= 0 failed after 30 iterations ALSA../../alsa-kernel/pci/rme9652/hdsp.c:4711: initializing firmware upload ALSA ../../alsa-kernel/pci/rme9652/hdsp.c:678: loading firmware ALSA../../alsa-kernel/pci/rme9652/hdsp.c:716: finished firmware loading

when running hdsploader i usually get the first message ...

btw, paul, is the patch working on your setup?

cheers...

Tim mailto:[email protected]

                              ICQ: 96771783

--
The only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn, like fabulous yellow roman candles exploding like spiders across the stars and in the middle you see the blue centerlight pop and everybody goes "Awww!"
Jack Kerouac

 Tim                          mailto:[email protected]
                              ICQ: 96771783
--
The only people for me are the mad ones, the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn,
burn, like fabulous yellow roman candles exploding like spiders across
the stars and in the middle you see the blue centerlight pop and
everybody goes "Awww!"
                                                          Jack Kerouac



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The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn