Very odd problem.. I've read many relevent posts and
no combination of noacpi mem=... or other boot flags.
work.
Some backgorund Boser HS1600 board with BT878
minipci.
I have two such systems.. one with a 800mhz curouse
the other with a 600mhz (and some other minor
differences). with 2.4.22 (and 2.4.20) things are fine
on the 800mhz board.. but on the 600mhz only overlay
works. (same capture card). There are differences in
the IRQ assignments and minor bios variations. (I can
post if anyone thinks the actual numbers would be
helpful)
Digging deeper I have found that on the machine that
is not working that the stat returned by
stat=btread(BT848_INT_STAT);
does not have any bits in the RISC area set (leading
nibble). By hacking the driver to that just before
the test for /* captured full frame */ I set the bit
(2<<28) in stat (only on every other call..)
then the capture shows the live data.
So the data is there, the fifo are getting i, and the
DMA can trasnfer it, but somehow because of the
subtle differences between the machines the RISC code
is not settig the bits saying that the frame is
complete.
It also does not seem to set astat&BT848_INT_VSYNC
My hack is not an acceptable long run (it thinks every
2 calls to the irq with astat&BT848_INT_RISC
is a new frame which is not always the case).
Any "insights" or even educated guesses what I should
be looking at would be appreciated.
Terry Boult
Wl Pomar Prof.
U. Colorado at Colorado Springs
Results of lspci00:00.0 Host bridge: Transmeta
Corporation LongRun Northbridge
00:00.1 RAM memory: Transmeta Corporation SDRAM
controller
00:00.2 RAM memory: Transmeta Corporation BIOS
scratchpad
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686
[Apollo Super South] (rev 22)
00:07.1 IDE interface: VIA Technologies, Inc. Bus
Master IDE (rev 10)
00:07.2 USB Controller: VIA Technologies, Inc. UHCI
USB (rev 10)
00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo
Super ACPI] (rev 30)
00:08.0 Ethernet controller: Realtek Semiconductor
Co., Ltd. RTL-8139 (rev 10)
00:09.0 VGA compatible controller: Chips and
Technologies F69000 HiQVideo (rev 64)
00:0b.0 Multimedia audio controller: ESS Technology
ES1969 Solo-1 Audiodrive (rev 02)
00:0f.0 Multimedia video controller: Brooktree
Corporation Bt878 (rev 11)
00:0f.1 Multimedia controller: Brooktree Corporation
Bt878 (rev 11)
### video4linux device info [/dev/video0] ###
general info
VIDIOCGCAP
name : "bttv video"
type : 0xe9
[CAPTURE,OVERLAY,CLIPPING,FRAMERAM,SCALES]
channels : 2
audios : 0
maxwidth : 768
maxheight : 480
minwidth : 48
minheight : 32
channels
VIDIOCGCHAN(0)
channel : 0
name : "Composite0"
tuners : 0
flags : 0x2 [AUDIO]
type : CAMERA
norm : 1
VIDIOCGCHAN(1)
channel : 1
name : "S-Video"
tuners : 0
flags : 0x2 [AUDIO]
type : CAMERA
norm : 1
tuner
VIDIOCGTUNER
tuner : 0
name : "Television"
rangelow : 0
rangehigh : 4294967295
flags : 0x7 [PAL,NTSC,SECAM]
mode : NTSC
signal : 65535
audio
VIDIOCGAUDIO
audio : 0
volume : 0
bass : 0
treble : 0
picture
VIDIOCGPICT
brightness : 32768
hue : 32768
colour : 32512
contrast : 27648
whiteness : 0
depth : 0
palette : RGB24
buffer
VIDIOCGFBUF
base : (nil)
height : 768
width : 1024
depth : 16
bytesperline : 2048
window
VIDIOCGWIN
x : 0
y : 0
width : 320
height : 240
chromakey : 0
flags : 0
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