Thank you, Steve, for introducing me to the mailing list and showing me
the protocol. I have taken a look at your questions and comments. My
responses are interspersed in the email below
On 10/19/2010 04:27 PM, Steven Toth wrote:
Hi Dan,
Thanks for writing.
I can't do one-on-one end user support without copying in the Linux
Media mailing list. I'm taking the liberty of doing so. Please
reply-all when discussing this issue - so everyone can benefit.
[Dan is having issues being up an AverMedia board with a LG demod and
a MT2131 tuner via the cx23885 driver]
However, I am having some trouble getting the tuner to be recognized.
I was
It's the GPIO probably holding the tuner in reset, I suspect your gpio
configuration is wrong. That's my first guess. What makes you think
the gpio settings in your patch are correct?
how do I find out the GPIO? I was unable to find it in the
ngene-cards.c file. I have the AVer88xHD.inf file with me and it says
the following:
----from AVer88xHD.inf----
;Enable TS capture and BDA filter registration
HKR,"DriverData","Enable_BDA",0x00010001, 0x01, 0x00, 0x00, 0x00
HKR,"DriverData","BDA_Demod_Tuner_type",0x00010001, 0x65, 0x00, 0x00, 0x00
HKR,"DriverData","DemodI2CAddress",0x00010001, 0xb2, 0x00, 0x00, 0x00
HKR,"DriverData","DigitalDemodI2CBus",0x00010001, 0x1, 0x00, 0x00, 0x00
; these registry keys for TS filter
; DebugTS entry forces creation of TS capture filter without a demod
;HKR,"DriverData","DebugTS",0x00010001, 0x01,0x00,0x00,0x00
; Next line enables the software TS packetizer
;HKR,"DriverData","dwIsTSStream",0x00010001,0x01,0x00,0x00,0x00
;IR Support
HKR,"DriverData","EnableIR",0x00010001, 0x00, 0x00, 0x00, 0x00
;NEC standard
HKR,"DriverData","IRStandard",0x00010001, 0x01, 0x00, 0x00, 0x00
; GPIO Pin values
; IMPORTANT !!! if any GPIO is not used - just delete the corresponding
entry !!!
;HKR,"DriverData","comp_select_gpio_bit", 0x00010001, 0x00, 0x00, 0x00,
0x00
; Back Panel = 0x00, Front Panel = 0x01
;HKR,"DriverData","comp_select_panel", 0x00010001, 0x00, 0x00, 0x00, 0x00
;Demod Comm mode : 0x00 = Serial, 0x01 = Parallel
HKR,"DriverData","DemodTransferMode",0x00010001, 0x00, 0x00, 0x00, 0x00
;BoardType M791ENC = 113
HKR,"DriverData","BoardType",0x00010001, 0x71, 0x00, 0x00, 0x00
HKR,"DriverData","ComboBoard",0x00010001, 0x01, 0x00, 0x00, 0x00
; XCeive 3028 = 100
HKR,"DriverData","TunerType", 0x00010001, 0x64, 0x00, 0x00,
0x00
HKR,"DriverData","TunerI2CAddress", 0x00010001, 0xC2, 0x00, 0x00,
0x00
HKR,"DriverData","TunerI2CBus", 0x00010001, 0x02, 0x00, 0x00,
0x00
HKR,"DriverData","tuner_reset_gpio_bit", 0x00010001, 0x02, 0x00, 0x00,
0x00
;HKR,"DriverData","tuner_sif_fm_gpio_bit", 0x00010001, 0x01, 0x00,
0x00, 0x00
; MT2131 = 102
HKR,"DriverData","DigitalTunerType", 0x00010001, 0x66, 0x00, 0x00,
0x00
HKR,"DriverData","DigitalTunerI2CAddress", 0x00010001, 0xC0, 0x00, 0x00,
0x00
HKR,"DriverData","DigitalTunerI2CBus", 0x00010001, 0x01, 0x00, 0x00,
0x00
HKR,"DriverData","demod_reset_gpio_bit", 0x00010001, 0x14, 0x00, 0x00,
0x00
---end AVer88xHD.inf----
I'm not sure how to get the gpio from this? Am I supposed to use
0x00010001?
hoping that you might be willing to look over the code a bit to see
what I am
missing. I have altered the following 3 files: cx23885.h,
cx23885-cards.c, and
cx23885-dvb.c. I am attaching the 3 files in this email. I have been
trying to
do 3 things. First, to have the module auto-detect my card which was
successful.
Second, I wanted to attach the LGDT330X as my frontend which was
successful.
Third, I wanted to attach the MT2131 tuner. This third step is where
I am having
my troubles. I feel so close but I am not there yet. I know that you
wrote the
code a while back but if you would be willing to help me, I'd really
appreciate
it. Some folks have gotten the ngene module to work with the M780
board which
Yeah, I worked on the ngene with Devin as part of our KernelLabs.com
projects, we brought up the digital side of the card as a pre-test
while investigating ngene analog support.
If the 2131 isn't attaching then it's because you think it's on a
different I2C bus, or the LG demod has it's I2C gate closed (unlikely)
or the tuner is not responding because it's being held in reset.
Do you see the tuner if you perform and I2C scan (modprobe i2c_scan=1)?
When I run this, I can the following message:
FATAL: Module i2c_scan=1 not found.
However, running dmesg, I get the following:
[ 3072.274680] cx23885 driver version 0.0.2 loaded
[ 3072.274752] cx23885 0000:04:00.0: PCI INT A -> GSI 19 (level, low) ->
IRQ 19
[ 3072.274970] CORE cx23885[0]: subsystem: 1461:d439, board: AVermedia
M791 [card=29,autodetected]
[ 3072.605134] cx23885_dvb_register() allocating 1 frontend(s)
[ 3072.605189] cx23885[0]: cx23885 based dvb card
[ 3072.621974] MT2131: successfully identified at address 0x60
[ 3072.621981] DVB: registering new adapter (cx23885[0])
[ 3072.621986] DVB: registering adapter 0 frontend 0 (LG Electronics
LGDT3303 VSB/QAM Frontend)...
[ 3072.622519] cx23885_dev_checkrevision() Hardware revision = 0xb1
[ 3072.622529] cx23885[0]/0: found at 0000:04:00.0, rev: 15, irq: 19,
latency: 0, mmio: 0xea000000
[ 3072.622540] cx23885 0000:04:00.0: setting latency timer to 64
[ 3072.622546] IRQ 19/cx23885[0]: IRQF_DISABLED is not guaranteed on
shared IRQs
so it does look like it has identified MT2131 as the tuner but is unable
to work it.
Any further help would be greatly appreciated.
-Dan
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