[alsa-devel] Sampling rate limited to 48 kHz

[Marek Ławicki]

Hi,

I have Turtle Beach Catalina Card (Envy24HT-S, VT1616 + WM8728)
which I belive is exactly the same as Mad Dog Entertainer 7.1
( http://techreport.com/reviews/2004q1/maddog-entertainer/index.x?pg=2 )

Card is recognized as Chaintech AV-710 but works very well
( so far I tested analog out through WM8728 and digital out ).

My problem is : I can't set sampling rate higher than 48000 on SPDIF out.

I know this card can go higher because :

1. It can go higher under Windows (High Sample Rate 2-channel mode)

2. If I "flash" eeprom with M-Audio Revolution 7.1 settings
   card can sync with my external DAC up to 96 kHz (DAC limit)
   and I can play 96kHz .wav file.
   This is not the way to go for me (analog part and SPDIF-in is lost)


I found this :

ice1724.c:390:static int get_max_rate(struct snd_ice1712 *ice)
ice1724.c-391-{
ice1724.c-392-  if (ice->eeprom.data[ICE_EEP2_ACLINK] & VT1724_CFG_PRO_I2S) {
ice1724.c-393-          if ((ice->eeprom.data[ICE_EEP2_I2S] & 0x08) &&
!ice->vt1720)
ice1724.c-394-                  return 192000;
ice1724.c-395-          else
ice1724.c-396-                  return 96000;
ice1724.c-397-  } else
ice1724.c-398-          return 48000;
ice1724.c-399-}
ice1724.c-400-

Tried to play with it, but no luck  - I'm  not developer :-)

How can I help with making ice1724 driver even better ?

Thanks,
Marek


# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.14rc1.
Compiled on Apr  2 2007 for kernel 2.6.18.6.

# cat /proc/asound/card0/ice1724
Chaintech AV-710 at 0xd000, irq 11

EEPROM:
  Subvendor        : 0x12142417
  Size             : 28 bytes
  Version          : 1
  System Config    : 0x42
  ACLink           : 0x2
  I2S              : 0x10
  S/PDIF           : 0xc3
  GPIO direction   : 0xff
  GPIO mask        : 0xff
  GPIO state       : 0xff
  Extra #18        : 0x1
  Extra #19        : 0x8
  Extra #20        : 0x0
  Extra #21        : 0x0
  Extra #22        : 0x0
  Extra #23        : 0x0
  Extra #24        : 0x0
  Extra #25        : 0x0
  Extra #26        : 0x0
  Extra #27        : 0x0

Registers:
  PSDOUT03 : 0x00000000
  CCS00    : 0x00
  CCS01    : 0xa0
  CCS02    : 0x00
  CCS03    : 0x00
  CCS04    : 0x42
  CCS05    : 0x02
  CCS06    : 0x10
  CCS07    : 0xc3
  CCS08    : 0x00
  CCS09    : 0x00
  CCS0a    : 0x00
  CCS0b    : 0x00
  CCS0c    : 0x00
  CCS0d    : 0x0a
  CCS0e    : 0x00
  CCS0f    : 0x00
  CCS10    : 0x37
  CCS11    : 0x06
  CCS12    : 0x01
  CCS13    : 0x80
  CCS14    : 0x00
  CCS15    : 0xea
  CCS16    : 0xff
  CCS17    : 0x00
  CCS18    : 0xff
  CCS19    : 0x00
  CCS1a    : 0x00
  CCS1b    : 0x00
  CCS1c    : 0x00
  CCS1d    : 0x00
  CCS1e    : 0x2a
  CCS1f    : 0x00
  MT00     : 0x00
  MT01     : 0x08
  MT02     : 0x00
  MT03     : 0x08
  MT04     : 0x5a
  MT05     : 0x08
  MT06     : 0x21
  MT07     : 0x82
  MT08     : 0x00
  MT09     : 0x00
  MT0a     : 0x00
  MT0b     : 0x00
  MT0c     : 0x00
  MT0d     : 0x00
  MT0e     : 0x00
  MT0f     : 0x00
  MT10     : 0x40
  MT11     : 0x1f
  MT12     : 0xa8
  MT13     : 0x0d
  MT14     : 0x2f
  MT15     : 0x78
  MT16     : 0x00
  MT17     : 0x00
  MT18     : 0x80
  MT19     : 0x03
  MT1a     : 0x00
  MT1b     : 0x00
  MT1c     : 0xff
  MT1d     : 0x07
  MT1e     : 0x00
  MT1f     : 0x00
  MT20     : 0x20
  MT21     : 0x01
  MT22     : 0xac
  MT23     : 0x0d
  MT24     : 0xb7
  MT25     : 0x7f
  MT26     : 0xff
  MT27     : 0x07
  MT28     : 0x00
  MT29     : 0x00
  MT2a     : 0x00
  MT2b     : 0x00
  MT2c     : 0x00
  MT2d     : 0x00
  MT2e     : 0x00
  MT2f     : 0x00

# lspci -vvv

00:0b.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24
[Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01)
        Subsystem: VIA Technologies Inc. AMP Ltd AUDIO2000
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at d000 [size=32]
        Region 1: I/O ports at cc00 [size=128]
        Capabilities: [80] Power Management version 1
                Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-