- 09 Feb, 2012 40 commits
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Markus Grabner authored
There are several features of the Line6 USB driver which require PCM data to be exchanged with the device: *) PCM playback and capture via ALSA *) software monitoring (for devices without hardware monitoring) *) optional impulse response measurement However, from the device's point of view, there is just a single capture and playback stream, which must be shared between these subsystems. It is therefore necessary to maintain the state of the subsystems with respect to PCM usage. We define several constants of the form LINE6_BIT_PCM_<subsystem>_<direction>_<resource> with the following meanings: *) <subsystem> is one of -) ALSA: PCM playback and capture via ALSA -) MONITOR: software monitoring -) IMPULSE: optional impulse response measurement *) <direction> is one of -) PLAYBACK: audio output (from host to device) -) CAPTURE: audio input (from device to host) *) <resource> is one of -) BUFFER: buffer required by PCM data stream -) STREAM: actual PCM data stream The subsystems call line6_pcm_acquire() to acquire the (shared) resources needed for a particular operation (e.g., allocate the buffer for ALSA playback or start the capture stream for software monitoring). When a resource is no longer needed, it is released by calling line6_pcm_release(). Buffer allocation and stream startup are handled separately to allow the ALSA kernel driver to perform them at appropriate places (since the callback which starts a PCM stream is not allowed to sleep). Signed-off-by:
Markus Grabner <grabner@icg.tugraz.at> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Markus Grabner authored
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Markus Grabner authored
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Dan Carpenter authored
The intent here is to see if we have cleared the DMA_START_BIT flag. We clear it a couple lines later. The current code has a precedence bug so it is equivalent to "if (!dma_cntrl) { ...". Signed-off-by:Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Julia Lawall authored
Rewrite a duplicated test to test the correct value The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E; @@ ( * E || ... || E | * E && ... && E ) // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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Larry Finger authored
I am preparing to convert this driver from semaphore to mutex locking, The first step has been to eliminate a number of semaphores that were initialized but never used, and one whose only use was a single "up" after initialization. A total of 9 semaphores were removed in this process. One other change was to remove some inline semaphore routines that were unused. In addition, several cases had the following structure: down() if () { ... } up() The locking overhead was reduced by moving the up/down inside the if block. Signed-off-by:Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Tomas Winkler authored
Fix build error caused by commit: 6222d7a1 telephony: Move to staging The telephony driver was moved to staging but the Makefiles weren't updated Cc: Joe Perches <joe@perches.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
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Thomas Meyer authored
This is a little bit restricted to reduce false positives The semantic patch that makes this change is available in scripts/coccinelle/api/memdup_user.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/Signed-off-by:
Thomas Meyer <thomas@m3y3r.de> Signed-off-by:
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Kevin McKinney authored
This patch renames variables used in iteration statements with i, changes the datatype to int, and removes any default value. Signed-off-by:
Kevin McKinney <klmckinney1@gmail.com> Signed-off-by:
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Kevin McKinney authored
This patch replaces all variables and function output that have a datatype definition of "INT" with "int". Signed-off-by:
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Kevin McKinney authored
This patch removes an assignment from an if statement, and it reverses the logic in several if statements to make them more readable and understandable. Signed-off-by:
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Kevin McKinney authored
This patch removes a typedef from a variable definition in CmHost.c, and uses a enum instead. This Warning was reported by checkpatch.pl. Signed-off-by:
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Kevin McKinney authored
This patch replaces the obsolete variable, __FUNCTION__, that holds the name of the current function with variable, __func__. Reported by checkpatch.pl. Signed-off-by:
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Kevin McKinney authored
This patch cleans up several code style issues found in CmHost.c reported by checkpatch.pl. These include: white space, braces, indents, and comments. Signed-off-by:
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Kevin McKinney authored
Variables stNVMReadWrite.uioffset and stNVMReadWrite.uiNumBytes are chosen from userspace and can be very high. The sum of these two digits would result in a small number. Therefore, this patch verifies a negative number was not entered, and reorganizes the equation to remove the integer overflow. Signed-off-by:
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Szymon Janc authored
Signed-off-by:
Szymon Janc <szymon@janc.net.pl> Signed-off-by:
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Szymon Janc authored
Button id is of unsigned int type. Signed-off-by:
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
Also fix memory leak (buffer.pointer) when returned buffer of length less than 8. Signed-off-by:
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Szymon Janc authored
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Nitin Gupta authored
Removes the xvmalloc allocator code from the zram driver Signed-off-by:
Nitin Gupta <ngupta@vflare.org> Acked-by:
Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by:
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Nitin Gupta authored
Replaces xvmalloc with zsmalloc as the compressed page allocator for zram Signed-off-by:
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Seth Jennings authored
Adds the new zsmalloc library to the staging Kconfig and Makefile Signed-off-by:
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Nitin Gupta authored
This patch creates a new memory allocation library named zsmalloc. NOTE: zsmalloc currently depends on SPARSEMEM for the MAX_PHYSMEM_BITS value needed to determine the format of the object handle. There may be a better way to do this. Feedback is welcome. Signed-off-by:
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Seth Jennings authored
This patch allow zcache to use the crypto API for page compression. It replaces the direct LZO compress/decompress calls with calls into the crypto compression API. The compressor to be used is specified in the kernel boot line with the zcache parameter like: zcache=lzo or zcache=deflate. If the specified compressor can't be loaded, zcache uses lzo as the default compressor. Signed-off-by:
Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by:
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K. Y. Srinivasan authored
Consolidate all definitions that support communication with the host. Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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K. Y. Srinivasan authored
Consolidate the request structure by getting rid of struct hv_storvsc_request. Signed-off-by:
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K. Y. Srinivasan authored
Get rid of some unused defines. Signed-off-by:
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K. Y. Srinivasan authored
Cleanup some protocol related constants. Signed-off-by:
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K. Y. Srinivasan authored
Cleanup the code for generating protocol version. Signed-off-by:
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K. Y. Srinivasan authored
Miscellaneous cleanup of storvsc driver - get rid of unnecessary defines and use fixed size types for structures used for communication with the host. Signed-off-by:
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