Commit graph

25 commits

Author SHA1 Message Date
Clemens Ladisch
15a24c0778 [ALSA] usb-audio: use 1 ms URBs when capturing
USB generic driver
When capturing audio data, we do not know beforehand how many samples
the device sends per frame, so we have to use URBs that are as short as
possible to make sure that we can handle period boundaries without any
additional latencies.

Furthermore, the total count of URBs submitted doesn't matter when
capturing, so we can just use the maximum number.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-08-30 08:45:04 +02:00
Clemens Ladisch
854af9578c [ALSA] usb-audio - change quirk type handling
USB generic driver
Make the quirk type an enum instead of a #defined integer, and use a
table for the quirk constructor functions instead of a big switch
statement.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:22:41 +02:00
Clemens Ladisch
f38275fe99 [ALSA] usb-audio - add support for Miditech USB MIDI keyboards
USB generic driver
Add support for Miditech Midistart and MidiStudio keyboards (another
case of devices using the standard protocol but having no descriptors).

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:22:37 +02:00
Nishanth Aravamudan
b27c187f95 [ALSA] Fix-up sleeping in sound/usb
USB generic driver,USB USX2Y
Description: Fix-up sleeping in sound/usb. Replace big_mdelay() with
msleep() to guarantee the task delays as expected. This also involved
replacing/removing custom sleep functions.

Patch is compile-tested.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2005-07-28 12:22:22 +02:00
Clemens Ladisch
6155aff84b [ALSA] usb-audio - rename QUIRK_MIDI_MOTU to QUIRK_MIDI_RAW
USB generic driver
Rename the protocol used by the MOTU FastLane to 'raw' because it might
be useful with other devices, and there are other MOTU interfaces that
do not use this protocol.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:21:41 +02:00
Clemens Ladisch
b1c6ef52e2 [ALSA] usb-audio - enable high speed transfers with Audiy 2 NX
USB generic driver
This patch enables the boot commands to activate high speed mode (and
associated sample formats like 8 channels with 24 bits at 96 kHz) on the
SB Audigy 2 NX.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:21:34 +02:00
Clemens Ladisch
b4d3f9d452 [ALSA] usb-audio - fix capture of non-48k sample rates on Audigy 2 NX
USB generic driver
On the SB Audigy 2 NX, capturing with sample rates that are not a
multiple of 48 kHz does not seem to work, so disable it.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:09:26 +02:00
Clemens Ladisch
573567e07b [ALSA] usb-audio - high speed audio support
USB generic driver
Add support for endpoints with bInterval > 1, and decoding of the
wMaxPacketSize field of high-speed endpoints.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28 12:09:25 +02:00
Jesper Juhl
77933d7276 [PATCH] clean up inline static vs static inline
`gcc -W' likes to complain if the static keyword is not at the beginning of
the declaration.  This patch fixes all remaining occurrences of "inline
static" up with "static inline" in the entire kernel tree (140 occurrences in
47 files).

While making this change I came across a few lines with trailing whitespace
that I also fixed up, I have also added or removed a blank line or two here
and there, but there are no functional changes in the patch.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:20 -07:00
Jesper Juhl
4d572776d4 [ALSA] Remove redundant NULL checks before kfree
Timer Midlevel,ALSA sequencer,ALSA<-OSS sequencer,Digigram VX core
I2C tea6330t,GUS Library,VIA82xx driver,VIA82xx-modem driver
CA0106 driver,CS46xx driver,EMU10K1/EMU10K2 driver,YMFPCI driver
Digigram VX Pocket driver,Common EMU synth,USB generic driver,USB USX2Y
Checking a pointer for NULL before calling kfree() on it is redundant,
kfree() deals with NULL pointers just fine.
This patch removes such checks from sound/

This patch also makes another, but closely related, change.
It avoids casting pointers about to be kfree()'ed.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-06-22 12:27:43 +02:00
Clemens Ladisch
604cf49925 [ALSA] usb-audio - fix synchronization packet interval with Audigy 2 NX
USB generic driver
When a device does not provide the bRefresh field in its audio endpoint
descriptors, use the bInterval field instead.

Furthermore, increase the number of sync URBs for better queueing.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:11:03 +02:00
Clemens Ladisch
29b16931f9 [ALSA] usb-audio - avoid unnecessary double buffering
USB generic driver
When a USB packet boundary falls exactly on a buffer boundary, hwptr
remains at the end of the buffer which causes an overflow in the next
iteration and triggers double buffering although the next packet would
actually be contiguous.

This patch ensures that hwptr is always smaller than buffer_size.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:08:53 +02:00
Clemens Ladisch
50cdbf1519 [ALSA] usb-audio - sanity-check sync feedback frequency values
USB generic driver
Check that the synchronization feedback frequency values returned by the
device are more or less near the nominal frequency.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:08:50 +02:00
Clemens Ladisch
1dcd3ec472 [ALSA] usb-audio - bind to control interface instead of usb_device
USB generic driver
Bind the device files to the (first) audio control interface instead of
the entire USB device.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:06:43 +02:00
Clemens Ladisch
3a2f08560d [ALSA] usb-audio - enable high speed (not) on Audigy 2 NX
USB generic driver
The SB Audigy 2 NX needs a special boot-up command before it works in
high speed mode.

However, we don't actually enable it yet because high speed
synchronization doesn't seem to work with this device.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:06:28 +02:00
Clemens Ladisch
c3f9329716 [ALSA] usb-audio - set sample rate attribute on Audigy 2 NX endpoints
USB generic driver
The SB Audigy 2 NX does not advertise the sample rate attribute in its
endpoint descriptors although it supports it.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:06:07 +02:00
Clemens Ladisch
ca81090a00 [ALSA] usb-audio - use only one packet in synchronization feedback URBs
USB generic driver
Do not use more than one packet in synchronization feedback URBs because
it would be pointless to send or receive more than one value at the same
time.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:57 +02:00
Clemens Ladisch
1149a64fe4 [ALSA] usb-audio - use proper interval between synchronization packets
USB generic driver
Add sanity checks when reading the bRefresh value, and actually use it
for the synchronization packets instead of polling at 1000 Hz.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:54 +02:00
Clemens Ladisch
27d10f5664 [ALSA] usb-audio - cache vendor/product IDs
USB generic driver
Cache the decoded values of idVendor/idProduct to get rid of most of
those ugly le16_to_cpu() calls.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:47 +02:00
Clemens Ladisch
84957a8ab0 [ALSA] usb-audio - move mixer data into separate struct
USB generic driver
Move all data related to audio control interfaces into a separate struct
local to usbmixer.c.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:37 +02:00
Clemens Ladisch
8c1872dcf2 [ALSA] usb-audio - restrict Audigy 2 NX frequencies to 48/96 kHz
USB generic driver
On the SB Audigy 2 NX, frequency feedback doesn't quite work
when playing at 44.1 kHz, so temporarily disable this frequency.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:29 +02:00
Clemens Ladisch
ee7333970b [ALSA] usb-audio - remove superfluous parameter
USB generic driver,USB USX2Y
This patch removes the superfluous driver parameter from the
disconnect functions.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:14 +02:00
Clemens Ladisch
08fe15899d [ALSA] usb-audio - show exact synchronous frequency in proc file
USB generic driver
In the streamX proc file, show the exact number of samples per
USB frame as 16.16 hexadecimal floating point value.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29 10:05:07 +02:00
Karsten Wiese
230cd5e248 [ALSA] prevent oops & dead keyboard on usb unplugging while the device is being used
USB generic driver,USB USX2Y
Without this patch, some usb kobjects, which are parents to
the usx2y's kobjects can be freed before the usx2y's.
This led to an oops in get_kobj_path_length() and a dead
keyboard, when the usx2y's kobjects were freed.
The patch ensures the correct sequence.
Tested ok on kernel 2.6.12-rc2.

Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-05-29 10:04:47 +02:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00