Hi Joachim.
I'm sorry that I didn't respond for you ealier.
I read now your email at 2006-11-08.
I don't have any chip specs either.
The only way I can find out about chip state is
to read the registers with I2C.
Here is my responce for your email at 2006-11-08:
On my experience, if I do an unload of the mantis driver,
I will get the "!!! NO Frontends found !!!" message on next driver load.
It doesn't bother me now because I don't need rmmod usually.
Was your read_register log before you did rmmod?
I use the following sequence:
1. compile
2. install.
3. reboot.
4. test.
So that is how I avoid the rmmod bug in the driver.
You could install into register writing function another
function that first reads the original value and then writes
the new value.
That way I was able to track down register value changes.
It helped me to find one important bug in Mantis DMA start.
Do you a code example for register state debugging?
Are you using that fix already?
Do you have a 50ms delay function in zl10353.c, like in cu1216.c.
Very best regards for you too,
Marko Ristola
Joachim Holst kirjoitti:
Hi!
I got a little time to spare today, so I played around a bit with the Mantis
driver for the above card.
As I've mentioned earlier, Mantis loads and creates all the backend stuff but
stubbornly refuses to create a frontend. I know that Mantis tries to attach
the zl10353 frontend to this card but when trying to retrieve the chip ID
from the card, it retuns 0x00 instead of the expected 0x14.
Since I've failed to find any specs for the card, I'm having a bit trouble to
find the reason as to why retrieval of chip_id fails :-(
I'm not even sure that it's the correct frontend to use for this one (It's a
DVB-T card with CA slot).
I'm attaching modified debug printout from loading/unloading the mantis driver
and hope that someone can give me a bit more information on how to get this
beast running :-/
Very best regards,
Joachim Holst
--- CUT & PASTE ---
Nov 7 22:47:57 arthur ACPI: PCI Interrupt 0000:05:08.0[A] -> Link [LNK3] ->
GSI 7 (level, low) -> IRQ 7
Nov 7 22:47:57 arthur Mantis Rev 1, irq: 7, latency: 32
Nov 7 22:47:57 arthur memory: 0xc3100000, mmio: 0xf8c8a000
Nov 7 22:47:57 arthur get_mac_address (1): MAC Address=[ff:ff:ff:ff:ff:ff]
Nov 7 22:47:58 arthur get_subvendor_id (1): Sub Vendor ID=[0x1822]
Nov 7 22:47:58 arthur get_subdevice_id (1): Sub Device ID=[0x0024]
Nov 7 22:47:58 arthur mantis_alloc_buffers (1): DMA=0x1d6e0000 cpu=0xdd6e0000
size=65536
Nov 7 22:47:58 arthur mantis_alloc_buffers (1): RISC=0x3303c000
cpu=0xf303c000 size=1000
Nov 7 22:47:58 arthur DVB: registering new adapter (Mantis dvb adapter).
Nov 7 22:47:58 arthur mantis_frontend_init (1): Mantis frontend Init
Nov 7 22:47:58 arthur mantis_frontend_init (1): Device ID=24
Nov 7 22:47:58 arthur mantis_frontend_init (1): Probing for 10353 (DVB-T)
Nov 7 22:47:58 arthur Trying to attach zl10353 frontend
Nov 7 22:47:58 arthur zl10353_read_register: Device name: Mantis I2C
Nov 7 22:47:58 arthur zl10353_read_register: Managed to read 2 messages from
I2C
Nov 7 22:47:58 arthur zl10353_read_register: Requested value = b0[0] = 0x7f
Nov 7 22:47:58 arthur zl10353_read_register: Return value b1[0] = 0x0.
Nov 7 22:47:58 arthur zl10353_attach: Failed to get chip ID
Nov 7 22:47:58 arthur zl10353_attach: Ooops! Something went wrong. Returning
NULL
Nov 7 22:47:58 arthur mantis_frontend_init (1): !!! NO Frontends found !!!
---------- Unloading
Nov 7 22:48:04 arthur mantis_core_exit (1): DMA engine stopping
Nov 7 22:48:04 arthur mantis_dma_exit (1): DMA=0x1d6e0000 cpu=0xdd6e0000
size=65536
Nov 7 22:48:04 arthur mantis_dma_exit (1): RISC=0x3303c000 cpu=0xf303c000
size=1000
Nov 7 22:48:04 arthur mantis_pci_remove (1): Removing -->Mantis irq: 7,
latency: 32
Nov 7 22:48:04 arthur memory: 0xc3100000, mmio: 0xf8c8a000
--- END CUT & PASTE ---
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