1. 23 6月, 2006 15 次提交
  2. 28 4月, 2006 13 次提交
  3. 12 4月, 2006 9 次提交
  4. 11 4月, 2006 1 次提交
  5. 31 3月, 2006 2 次提交
    • M
      [ALSA] Add Aux input switch control for Aureon Universe · af9b70ac
      Maximilian Rehkopf 提交于
      This patch adds a mixer control which allows the user to switch the Aux
      playback between the internal Aux jack, Wavetable, and Rear Line-In on
      Aureon Universe cards.
      
      For switching, a PCA9554 (8-line GPIO with I2C interface) and a 74HC4052
      (dual 4-way mux/demux) are used.  Output 0 and 1 of the PCA9554 are
      connected to the select pins of the 74HC4052. The I2C interface of the
      PCA9554 is connected to the card's internal SPI bus which is also used
      to control the WM8770 and CS8415. SPI and I2C on the same lines...
      
      To communicate with the PCA9554 the WM8770 and CS8415 are disabled and
      an I2C Stop Condition is generated before the Start Condition (needed
      for synchronisation because other SPI traffic appear to confuse the
      PCA9554). Then a normal I2C data transfer takes place.  Programming must
      be done ridiculously slow; in theory, 4.7us is the minimum delay time
      for normal-speed I2C according to the datasheet, but even with 10us
      switching was unreliable.  The Windows driver from Terratec does the
      programming very slowly, too (checked with an oscilloscope).
      
      PCA9554 datasheet:
      http://www.semiconductors.philips.com/acrobat/datasheets/PCA9554_9554A_6.pdf
      
      74HC4052 datasheet:
      http://www.semiconductors.philips.com/acrobat/datasheets/74HC_HCT4052_4.pdfSigned-off-by: NMaximilian Rehkopf <otakon@gmx.net>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      af9b70ac
    • M
      [ALSA] pcxhr - Fix the crash with REV01 board · 0bd43b5b
      Markus Bollinger 提交于
      On a new board revision for pcxhr boards, the
      PCXHR_CHIPSC_GPI_USERI bit is no more supported.
      The cards concerned have a REV01 in their PCI ID.
      
      As the current driver tests this bit and does not load the
      first Xilinx binary when it's 1, the card will crash on Xilinx
      access over PCI. (the PCI will freeze ....)
      
      The fix (fix to version 1.0.11rc4) works for both REV00 and
      REV01 cards.
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      0bd43b5b