1. 02 11月, 2009 1 次提交
  2. 26 10月, 2009 1 次提交
  3. 15 10月, 2009 1 次提交
    • P
      ASoC: Codec driver for Texas Instruments tlv320dac33 codec · c8bf93f0
      Peter Ujfalusi 提交于
      Driver for Texas Instruments TLV320DAC33 (SLAS546) low power stereo
      audio DAC.
      
      TLV320DAC33 is a stereo audio codec with integrated 24KB FIFO for low
      power audio playback.
      
      The digital interface can use I2S, DSP (A or B), Right and Left
      justified formats.
      DAC33 has stereo analog input, which can be bypassed to the analog
      outputs.
      
      Regarding to the internal 24KB FIFO the driver implements 'FIFO bypass'
      mode (default) and nSample mode (FIFO is in use).
      a) In 'FIFO bypass' mode the internal FIFO is not in use, the codec is
      working synchronously as a normal codec (it needs constant stream of
      data on the digital interface).
      
      b) The nSample mode implementation uses one interrupt line from DAC33 to
      the host:
      Alarm threshold is set to 10ms of audio data (limit by the driver
      implementation).
      DAC33 will signal an interrupt, when the FIFO level goes under the
      Alarm threshold.
      The host will write to nSample register a value (number of stereo
      samples), to tell DAC33 how many samples it should read in a burst from
      the host. When the DAC33 received the number of samples, it disables the
      clocks on the I2S bus. When the FIFO use again goes under the Alarm
      threshold, DAC33 signals the host with an interrupt, and the process is
      repeated.
      Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      c8bf93f0
  4. 10 10月, 2009 1 次提交
    • P
      ASoC: TPA6130A2 amplifier driver · 493b67ef
      Peter Ujfalusi 提交于
      Driver for Texas Instruments TPA6130A2 stereo headphone
      amplifier.
      
      The driver provides playback gain control and also pre-defined
      DAPM_HP widgets and DAPM routings for power management.
      
      The DAPM_HP widget names are:
      "TPA6130A2 Headphone Left"
      "TPA6130A2 Headphone Right"
      
      From soc machine drivers to use with the tpa6130a2 amplifier,
      the tpa6130a2_add_controls has to be called, which adds the alsa
      controls and the DAPM routing needed for the tpa6130a2.
      After that the machine driver can connect the codec's output
      with 'TPA6130A2 Left' and 'TPA6130A2 Right':
      
              {"TPA6130A2 Left", NULL, "CODEC LEFT OUT"},
              {"TPA6130A2 Right", NULL, "CODEC RIGHT OUT"},
      
      Internally the left and right channels are powered separately.
      When none of the channels are needed the amplifier is powered
      down:
      hard power: valid GPIO number is passed within platform data
      soft power: Using the software shutdown of the amplifier
      Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      493b67ef
  5. 10 9月, 2009 1 次提交
  6. 21 8月, 2009 1 次提交
  7. 19 8月, 2009 2 次提交
  8. 14 8月, 2009 1 次提交
  9. 13 8月, 2009 2 次提交
  10. 06 8月, 2009 1 次提交
    • M
      ASoC: Add WM8776 CODEC driver · 924914ee
      Mark Brown 提交于
      The WM8776 is a high performance, stereo audio CODEC with five channel
      input selector. The WM8776 is ideal for surround sound processing
      applications for home hi-fi, DVD-RW and other audio visual equipment.
      
      This driver implements support for most WM8776 features - currently the
      ADC automatic level control/limiter functionality is omitted.
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      924914ee
  11. 23 7月, 2009 1 次提交
    • J
      ASoC: Add support for Conexant CX20442-11 voice modem codec · 459dc352
      Janusz Krzysztofik 提交于
      This patch adds support for Conexant CX20442-11 voice modem codec, suitable
      for use by the ASoC board driver for Amstrad E3 (Delta) videophone. Related
      sound card driver will follow.
      
      This codec is an optional part of the Conexant SmartV three chip modem design.
      As such, documentation for its proprietary digital audio interface is not
      available. However, on Amstrad Delta board, thanks to Mark Underwood who
      created an initial, omap-alsa based sound driver a few years ago[1], the codec
      has been discovered to be accessible not only from the modem side, but also
      over the OMAP McBSP based CPU DAI. Thus, the driver can be used by any sound
      card that can access the codec DAI directly. The DAI configuration parameters
      (sample rate and format, number of channels) has been selected out empirically
      for best user experience.
      
      The codec analogue interface consists of two pairs of analogue I/O pins:
      speakerphone interface or telephone handset/headset interface. Furthermore, it
      seams to provide two operation modes for speakerphone I/O: standard and
      advanced, with automatic gain control and echo cancelation. Even if the codec
      control interface is unknown and not available, all those interfaces and modes
      can be selected over the modem chip using V.253 commands. The driver is able
      to issue necessary commands over a suitable hw_write function if provided by a
      sound card driver. Otherwise, the codec can be controlled over the modem from
      userspace while inactive.
      
      Even if nothig is known about the codec internal power management
      capabilities, DAPM widgets has been used to model the codec audio map.
      Automatically performed powering up/down of those virtual widgets results in
      corresponding V.253 commands being issued.
      
      Some driver features/oddities may be board specific, but I have no way to
      verify that with any board other than Amstrad Delta.
      
      [1] http://www.earth.li/pipermail/e3-hacking/2006-April/000481.html
      
      Created and tested against linux-2.6.31-rc3.
      Applies and works with linux-omap-2.6 commit
      7c5cb7862d32cb344be7831d466535d5255e35ac as well.
      Signed-off-by: NJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      459dc352
  12. 16 7月, 2009 1 次提交
  13. 15 7月, 2009 1 次提交
  14. 09 7月, 2009 1 次提交
  15. 02 7月, 2009 1 次提交
  16. 13 6月, 2009 1 次提交
  17. 28 5月, 2009 1 次提交
  18. 24 5月, 2009 1 次提交
  19. 23 5月, 2009 1 次提交
    • M
      ASoC: Add WM8974 CODEC driver · 0a1bf553
      Mark Brown 提交于
      The WM8974 is a low power, high quality mono CODEC designed for portable
      applications such as digital still cameras or digital voice recorders.
      
      This driver was originally written by Graeme Gregory and Liam Girdwood
      and has since been maintained by myself with some updates contributed by
      Brett Saunders and Javier Martin.
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      0a1bf553
  20. 22 5月, 2009 1 次提交
  21. 28 4月, 2009 1 次提交
  22. 13 4月, 2009 1 次提交
    • M
      ASoC: Add WM8960 CODEC driver · f2644a2c
      Mark Brown 提交于
      The WM8960 is a low power, high quality stereo codec designed for
      portable digital audio applications.
      
      Stereo class D speaker drivers provide 1W per channel into 8W loads.
      Guaranteed low leakage, excellent PSRR and pop/click suppression
      mechanisms enable direct battery connection for the speaker supply.
      
      The device also integrates a complete microphone interface and a stereo
      headphone driver. External component requirements are drastically
      reduced as no separate microphone, speaker or headphone amplifiers are
      required. Advanced on-chip digital signal processing performs automatic
      level control for the microphone or line input.
      
      Stereo 24-bit sigma-delta ADCs and DACs are used with low power
      over-sampling digital interpolation and decimation filters and a
      flexible digital audio interface.
      
      The master clock can be input directly or generated internally by an
      onboard PLL, supporting most commonly-used clocking schemes.
      
      This driver was originally written by Liam Girdwood, with substantial
      subsequent additions and updates for feature completeness and changes in
      the ASoC framework from me.
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      f2644a2c
  23. 08 4月, 2009 1 次提交
    • M
      ASoC: Add WM8988 CODEC driver · 5409fb4e
      Mark Brown 提交于
      The WM8988 is a low power, high quality stereo CODEC designed for
      portable digital audio applications.
      
      The device integrates complete interfaces to 2 stereo headphone or line
      out ports. External component requirements are drastically reduced as no
      separate headphone amplifiers are required. Advanced on-chip digital
      signal processing performs graphic equaliser, 3-D sound enhancement and
      automatic level control for the microphone or line input.
      
      The WM8988 can operate as a master or a slave, with various master clock
      frequencies including 12 or 24MHz for USB devices, or standard 256fs
      rates like 12.288MHz and 24.576MHz. Different audio sample rates such as
      96kHz, 48kHz, 44.1kHz are generated directly from the master clock
      without the need for an external PLL.
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      5409fb4e
  24. 11 3月, 2009 1 次提交
  25. 09 3月, 2009 1 次提交
  26. 13 2月, 2009 1 次提交
    • T
      ASoC: add additional controls to the CS4270 codec driver · d5e9ba1d
      Timur Tabi 提交于
      Update the CS4270 codec driver to allow applications to use the mixer to
      control Digital Loopback, Soft Ramp, Zero Cross, Popguard, and Auto-Mute.
      Soft Ramp, Zero Cross, and Auto-Mute are disabled by the driver when it first
      initializes the hardware, but these features either don't work or interfere
      with normal ALSA behavior.  However, they can now be re-enabled by an
      application if desired.
      
      Remove CONFIG_SND_SOC_CS4270_HWMUTE and always allow ASoC to control the mute
      bits.  The driver previously and erroneously assumed that these bits
      control only external muting circuitry, but they also control internal
      muting circuitry, so they should always be used.
      Signed-off-by: NTimur Tabi <timur@freescale.com>
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      d5e9ba1d
  27. 23 1月, 2009 2 次提交
  28. 17 1月, 2009 1 次提交
  29. 06 1月, 2009 1 次提交
  30. 19 12月, 2008 1 次提交
    • M
      ASoC: Add WM8350 AudioPlus codec driver · 40aa4a30
      Mark Brown 提交于
      The WM8350 is an integrated audio and power management subsystem which
      provides a single-chip solution for portable audio and multimedia systems.
      
      The integrated audio CODEC provides all the necessary functions for
      high-quality stereo recording and playback. Programmable on-chip
      amplifiers allow for the direct connection of headphones and microphones
      with a minimum of external components. A programmable low-noise bias
      voltage is available to feed one or more electret microphones.
      Additional audio features include programmable high-pass filter in the
      ADC input path.
      
      This driver was originally written by Liam Girdwood with further updates
      from me.
      Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      40aa4a30
  31. 19 11月, 2008 1 次提交
  32. 17 11月, 2008 1 次提交
  33. 14 11月, 2008 1 次提交
  34. 31 10月, 2008 2 次提交
  35. 30 10月, 2008 1 次提交
  36. 14 10月, 2008 1 次提交