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  1. 23 Feb, 2010 4 commits
    • Daniel Mack's avatar
      ALSA: usbmixer: bail out early when parsing audio class v2 descriptors · 7b8a043f
      Daniel Mack authored 
      This is just a quick hack that needs to be removed once the new units
defined by the audio class v2.0 standard are supported.

However, it allows using these devices for now, without mixer support.
Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      7b8a043f
    • Daniel Mack's avatar
      ALSA: usbaudio: implement basic set of class v2.0 parser · 53ee98fe
      Daniel Mack authored 
      This adds a number of parsers for audio class v2.0. In particular, the
following internals are different and now handled by the code:

* the number of streaming interfaces is now reported by an interface
  association descriptor. The old approach using a proprietary
  descriptor is deprecated.

* The number of channels per interface is now stored in the AS_GENERAL
  descriptor (used to be part of the FORMAT_TYPE descriptor).

* The list of supported sample rates is no longer stored in a variable
  length appendix of the format_type descriptor but is retrieved from
  the device using a class specific GET_RANGE command.

* Supported sample formats are now reported as 32bit bitmap rather than
  a fixed value. For now, this is worked around by choosing just one of
  them.

* A devices needs to have at least one CLOCK_SOURCE descriptor which
  denotes a clockID that is needed im the class request command.

* Many descriptors (format_type, ...) have changed their layout. Handle
  this by casting the descriptors to the appropriate structs.
Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      53ee98fe
    • Daniel Mack's avatar
      ALSA: usbaudio: introduce new types for audio class v2 · 8fee4aff
      Daniel Mack authored 
      This patch adds some definitions for audio class v2.

Unfortunately, the UNIT types PROCESSING_UNIT and EXTENSION_UNIT have
different numerical representations in both standards, so there is need
for a _V1 add-on now. usbmixer.c is changed accordingly.
Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      8fee4aff
    • Daniel Mack's avatar
      ALSA: usbaudio: parse USB descriptors with structs · 28e1b773
      Daniel Mack authored 
      In preparation of support for v2.0 audio class, use the structs from
linux/usb/audio.h and add some new ones to describe the fields that are
actually parsed by the descriptor decoders.

Also, factor out code from usb_create_streams(). This makes it easier to
adopt the new iteration logic needed for v2.0.
Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      28e1b773
  3. 22 Feb, 2010 1 commit
  5. 18 Feb, 2010 2 commits
  7. 17 Feb, 2010 3 commits
  9. 16 Feb, 2010 8 commits
  11. 15 Feb, 2010 4 commits
    • Giuliano Pochini's avatar
      ALSA: Echoaudio - Add suspend support #2 · 47b5d028
      Giuliano Pochini authored 
      This patch adds rearranges parts of the initialization code and adds
suspend and resume callbacks.

This patch adds suspend and resume callbacks.
It also rearranges parts of the initialization code so it can be
used in both the first initialization (when the module is loaded we
also have to load default settings) and the resume callback (where
we have to restore the previous settings).
Signed-off-by: default avatarGiuliano Pochini <pochini@shiny.it>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      47b5d028
    • Giuliano Pochini's avatar
      ALSA: Echoaudio - Add suspend support #1 · ad3499f4
      Giuliano Pochini authored 
      Move the controls init code outside the init_hw() function because is must
not be called during resume.

This patch moves the code that initializes the card's controls with
default valued from the init_hw() function into a separated
set_mixer_defaults() function (one for each of the 16 supported
cards). This change is necessary because during resume we must
resurrect the hardware without losing the previous
settings. set_mixer_defaults() must be called only once when the
module is loaded.
Signed-off-by: default avatarGiuliano Pochini <pochini@shiny.it>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      ad3499f4
    • Giuliano Pochini's avatar
      ALSA: Echoaudio - Add firmware cache #2 · 4f8ada44
      Giuliano Pochini authored 
      This patch implements a simple cache for the firmware files when CONFIG_PM is defined.

This patch changes get_firmware(), free_firmware() and adds
free_firmware_cache(). The first two functions implement a very
simple cache and the latter is used to actually release all the stored
firmwares when the module is unloaded. 
When CONFIG_PM is not enabled those functions act as before, that is
free_firmware() releases the firmware immediately and
free_firmware_cache() does nothing.
Signed-off-by: default avatarGiuliano Pochini <pochini@shiny.it>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      4f8ada44
    • Giuliano Pochini's avatar
      ALSA: Echoaudio - Add firmware cache #1 · 19b50063
      Giuliano Pochini authored 
      Changes the way the firmware is passed through functions.

When CONFIG_PM is enabled the firmware cannot be released because the
driver will need it again to resume the card. 
With this patch the firmware is passed as an index of the struct
firmware card_fw[] in place of a pointer. That same index is then used
to locate the firmware in the firmware cache.
Signed-off-by: default avatarGiuliano Pochini <pochini@shiny.it>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      19b50063
  13. 12 Feb, 2010 13 commits
  15. 11 Feb, 2010 5 commits
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