-------------------------
Major and minor numbers for block and character devices are allocated
-by the Linux assigned name and number authority (currently better
-known as H Peter Anvin). The site is http://www.lanana.org/. This
+by the Linux assigned name and number authority (currently this is
+Torben Mathiasen). The site is http://www.lanana.org/. This
also deals with allocating numbers for devices that are not going to
be submitted to the mainstream kernel.
+See Documentation/devices.txt for more information on this.
-If you don't use assigned numbers then when you device is submitted it will
-get given an assigned number even if that is different from values you may
+If you don't use assigned numbers then when your device is submitted it will
+be given an assigned number even if that is different from values you may
have shipped to customers before.
Who To Submit Drivers To
If the code area has a general maintainer then please submit it to
the maintainer listed in MAINTAINERS in the kernel file. If the
maintainer does not respond or you cannot find the appropriate
- maintainer then please contact Alan Cox <alan@lxorguk.ukuu.org.uk>
+ maintainer then please contact the 2.2 kernel maintainer:
+ Marc-Christian Petersen <m.c.p@wolk-project.de>.
Linux 2.4:
The same rules apply as 2.2. The final contact point for Linux 2.4
Licensing: The code must be released to us under the
GNU General Public License. We don't insist on any kind
- of exclusively GPL licensing, and if you wish the driver
+ of exclusive GPL licensing, and if you wish the driver
to be useful to other communities such as BSD you may well
wish to release under multiple licenses.
To create a patch for a single file, it is often sufficient to do:
- SRCTREE= linux-2.4
+ SRCTREE= linux-2.6
MYFILE= drivers/net/mydriver.c
cd $SRCTREE
or unmodified kernel source tree, and generate a diff against your
own source tree. For example:
- MYSRC= /devel/linux-2.4
+ MYSRC= /devel/linux-2.6
- tar xvfz linux-2.4.0-test11.tar.gz
- mv linux linux-vanilla
- wget http://www.moses.uklinux.net/patches/dontdiff
- diff -uprN -X dontdiff linux-vanilla $MYSRC > /tmp/patch
- rm -f dontdiff
+ tar xvfz linux-2.6.12.tar.gz
+ mv linux-2.6.12 linux-2.6.12-vanilla
+ diff -uprN -X linux-2.6.12-vanilla/Documentation/dontdiff \
+ linux-2.6.12-vanilla $MYSRC > /tmp/patch
"dontdiff" is a list of files which are generated by the kernel during
the build process, and should be ignored in any diff(1)-generated
-patch. dontdiff is maintained by Tigran Aivazian <tigran@veritas.com>
+patch. The "dontdiff" file is included in the kernel tree in
+2.6.12 and later. For earlier kernel versions, you can get it
+from <http://www.xenotime.net/linux/doc/dontdiff>.
Make sure your patch does not include any extra files which do not
belong in a patch submission. Make sure to review your patch -after-
If your changes produce a lot of deltas, you may want to look into
splitting them into individual patches which modify things in
-logical stages, this will facilitate easier reviewing by other
+logical stages. This will facilitate easier reviewing by other
kernel developers, very important if you want your patch accepted.
-There are a number of scripts which can aid in this;
+There are a number of scripts which can aid in this:
Quilt:
http://savannah.nongnu.org/projects/quilt
Randy Dunlap's patch scripts:
-http://developer.osdl.org/rddunlap/scripts/patching-scripts.tgz
+http://www.xenotime.net/linux/scripts/patching-scripts-002.tar.gz
Andrew Morton's patch scripts:
-http://www.zip.com.au/~akpm/linux/patches/patch-scripts-0.16
+http://www.zip.com.au/~akpm/linux/patches/patch-scripts-0.20
+
+
2) Describe your changes.
since people copy, as long as it's trivial)
Any fix by the author/maintainer of the file. (ie. patch monkey
in re-transmission mode)
+URL: <http://www.kernel.org/pub/linux/kernel/people/rusty/trivial/>
+
point out some special detail about the sign-off.
+
+12) More references for submitting patches
+
+Andrew Morton, "The perfect patch" (tpp).
+ <http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt>
+
+Jeff Garzik, "Linux kernel patch submission format."
+ <http://linux.yyz.us/patch-format.html>
+
+
+
-----------------------------------
SECTION 2 - HINTS, TIPS, AND TRICKS
-----------------------------------
4) Don't over-design.
Don't try to anticipate nebulous future cases which may or may not
-be useful: "Make it as simple as you can, and no simpler"
-
-
+be useful: "Make it as simple as you can, and no simpler."
Format: {"of[f]" | "sk[ipmbr]"}
See comment in arch/i386/boot/edd.S
+ edd [EDD]
+ Format: {"of[f]" | "sk[ipmbr]"}
+ See comment in arch/i386/boot/edd.S
+
eicon= [HW,ISDN]
Format: <id>,<membase>,<irq>
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
+ irqfixup [HW]
+ When an interrupt is not handled search all handlers
+ for it. Intended to get systems with badly broken
+ firmware running.
+
+ irqpoll [HW]
+ When an interrupt is not handled search all handlers
+ for it. Also check all handlers each timer
+ interrupt. Intended to get systems with badly broken
+ firmware running.
+
isapnp= [ISAPNP]
Format: <RDP>, <reset>, <pci_scan>, <verbosity>
irqmask=0xMMMM [IA-32] Set a bit mask of IRQs allowed to be assigned
automatically to PCI devices. You can make the kernel
exclude IRQs of your ISA cards this way.
+ pirqaddr=0xAAAAA [IA-32] Specify the physical address
+ of the PIRQ table (normally generated
+ by the BIOS) if it is outside the
+ F0000h-100000h range.
lastbus=N [IA-32] Scan all buses till bus #N. Can be useful
if the kernel is unable to find your secondary buses
and you want to tell it explicitly which ones they are.
-<HTML><HEAD>
-<TITLE>Video4Linux Kernel API Reference v0.1:19990430</TITLE>
-</HEAD>
-<! Revision History: >
-<! 4/30/1999 - Fred Gleason (fredg@wava.com)>
-<! Documented extensions for the Radio Data System (RDS) extensions >
-<BODY bgcolor="#ffffff">
-<H3>Devices</H3>
-Video4Linux provides the following sets of device files. These live on the
-character device formerly known as "/dev/bttv". /dev/bttv should be a
-symlink to /dev/video0 for most people.
-<P>
-<TABLE>
-<TR><TH>Device Name</TH><TH>Minor Range</TH><TH>Function</TH>
-<TR><TD>/dev/video</TD><TD>0-63</TD><TD>Video Capture Interface</TD>
-<TR><TD>/dev/radio</TD><TD>64-127</TD><TD>AM/FM Radio Devices</TD>
-<TR><TD>/dev/vtx</TD><TD>192-223</TD><TD>Teletext Interface Chips</TD>
-<TR><TD>/dev/vbi</TD><TD>224-239</TD><TD>Raw VBI Data (Intercast/teletext)</TD>
-</TABLE>
-<P>
-Video4Linux programs open and scan the devices to find what they are looking
-for. Capability queries define what each interface supports. The
-described API is only defined for video capture cards. The relevant subset
-applies to radio cards. Teletext interfaces talk the existing VTX API.
-<P>
-<H3>Capability Query Ioctl</H3>
-The <B>VIDIOCGCAP</B> ioctl call is used to obtain the capability
-information for a video device. The <b>struct video_capability</b> object
-passed to the ioctl is completed and returned. It contains the following
-information
-<P>
-<TABLE>
-<TR><TD><b>name[32]</b><TD>Canonical name for this interface</TD>
-<TR><TD><b>type</b><TD>Type of interface</TD>
-<TR><TD><b>channels</b><TD>Number of radio/tv channels if appropriate</TD>
-<TR><TD><b>audios</b><TD>Number of audio devices if appropriate</TD>
-<TR><TD><b>maxwidth</b><TD>Maximum capture width in pixels</TD>
-<TR><TD><b>maxheight</b><TD>Maximum capture height in pixels</TD>
-<TR><TD><b>minwidth</b><TD>Minimum capture width in pixels</TD>
-<TR><TD><b>minheight</b><TD>Minimum capture height in pixels</TD>
-</TABLE>
-<P>
-The type field lists the capability flags for the device. These are
-as follows
-<P>
-<TABLE>
-<TR><TH>Name</TH><TH>Description</TH>
-<TR><TD><b>VID_TYPE_CAPTURE</b><TD>Can capture to memory</TD>
-<TR><TD><b>VID_TYPE_TUNER</b><TD>Has a tuner of some form</TD>
-<TR><TD><b>VID_TYPE_TELETEXT</b><TD>Has teletext capability</TD>
-<TR><TD><b>VID_TYPE_OVERLAY</b><TD>Can overlay its image onto the frame buffer</TD>
-<TR><TD><b>VID_TYPE_CHROMAKEY</b><TD>Overlay is Chromakeyed</TD>
-<TR><TD><b>VID_TYPE_CLIPPING</b><TD>Overlay clipping is supported</TD>
-<TR><TD><b>VID_TYPE_FRAMERAM</b><TD>Overlay overwrites frame buffer memory</TD>
-<TR><TD><b>VID_TYPE_SCALES</b><TD>The hardware supports image scaling</TD>
-<TR><TD><b>VID_TYPE_MONOCHROME</b><TD>Image capture is grey scale only</TD>
-<TR><TD><b>VID_TYPE_SUBCAPTURE</b><TD>Capture can be of only part of the image</TD>
-</TABLE>
-<P>
-The minimum and maximum sizes listed for a capture device do not imply all
-that all height/width ratios or sizes within the range are possible. A
-request to set a size will be honoured by the largest available capture
-size whose capture is no large than the requested rectangle in either
-direction. For example the quickcam has 3 fixed settings.
-<P>
-<H3>Frame Buffer</H3>
-Capture cards that drop data directly onto the frame buffer must be told the
-base address of the frame buffer, its size and organisation. This is a
-privileged ioctl and one that eventually X itself should set.
-<P>
-The <b>VIDIOCSFBUF</b> ioctl sets the frame buffer parameters for a capture
-card. If the card does not do direct writes to the frame buffer then this
-ioctl will be unsupported. The <b>VIDIOCGFBUF</b> ioctl returns the
-currently used parameters. The structure used in both cases is a
-<b>struct video_buffer</b>.
-<P>
-<TABLE>
-<TR><TD><b>void *base</b></TD><TD>Base physical address of the buffer</TD>
-<TR><TD><b>int height</b></TD><TD>Height of the frame buffer</TD>
-<TR><TD><b>int width</b></TD><TD>Width of the frame buffer</TD>
-<TR><TD><b>int depth</b></TD><TD>Depth of the frame buffer</TD>
-<TR><TD><b>int bytesperline</b></TD><TD>Number of bytes of memory between the start of two adjacent lines</TD>
-</TABLE>
-<P>
-Note that these values reflect the physical layout of the frame buffer.
-The visible area may be smaller. In fact under XFree86 this is commonly the
-case. XFree86 DGA can provide the parameters required to set up this ioctl.
-Setting the base address to NULL indicates there is no physical frame buffer
-access.
-<P>
-<H3>Capture Windows</H3>
-The capture area is described by a <b>struct video_window</b>. This defines
-a capture area and the clipping information if relevant. The
-<b>VIDIOCGWIN</b> ioctl recovers the current settings and the
-<b>VIDIOCSWIN</b> sets new values. A successful call to <b>VIDIOCSWIN</b>
-indicates that a suitable set of parameters have been chosen. They do not
-indicate that exactly what was requested was granted. The program should
-call <b>VIDIOCGWIN</b> to check if the nearest match was suitable. The
-<b>struct video_window</b> contains the following fields.
-<P>
-<TABLE>
-<TR><TD><b>x</b><TD>The X co-ordinate specified in X windows format.</TD>
-<TR><TD><b>y</b><TD>The Y co-ordinate specified in X windows format.</TD>
-<TR><TD><b>width</b><TD>The width of the image capture.</TD>
-<TR><TD><b>height</b><TD>The height of the image capture.</TD>
-<TR><TD><b>chromakey</b><TD>A host order RGB32 value for the chroma key.</TD>
-<TR><TD><b>flags</b><TD>Additional capture flags.</TD>
-<TR><TD><b>clips</b><TD>A list of clipping rectangles. <em>(Set only)</em></TD>
-<TR><TD><b>clipcount</b><TD>The number of clipping rectangles. <em>(Set only)</em></TD>
-</TABLE>
-<P>
-Clipping rectangles are passed as an array. Each clip consists of the following
-fields available to the user.
-<P>
-<TABLE>
-<TR><TD><b>x</b></TD><TD>X co-ordinate of rectangle to skip</TD>
-<TR><TD><b>y</b></TD><TD>Y co-ordinate of rectangle to skip</TD>
-<TR><TD><b>width</b></TD><TD>Width of rectangle to skip</TD>
-<TR><TD><b>height</b></TD><TD>Height of rectangle to skip</TD>
-</TABLE>
-<P>
-Merely setting the window does not enable capturing. Overlay capturing
-(i.e. PCI-PCI transfer to the frame buffer of the video card)
-is activated by passing the <b>VIDIOCCAPTURE</b> ioctl a value of 1, and
-disabled by passing it a value of 0.
-<P>
-Some capture devices can capture a subfield of the image they actually see.
-This is indicated when VIDEO_TYPE_SUBCAPTURE is defined.
-The video_capture describes the time and special subfields to capture.
-The video_capture structure contains the following fields.
-<P>
-<TABLE>
-<TR><TD><b>x</b></TD><TD>X co-ordinate of source rectangle to grab</TD>
-<TR><TD><b>y</b></TD><TD>Y co-ordinate of source rectangle to grab</TD>
-<TR><TD><b>width</b></TD><TD>Width of source rectangle to grab</TD>
-<TR><TD><b>height</b></TD><TD>Height of source rectangle to grab</TD>
-<TR><TD><b>decimation</b></TD><TD>Decimation to apply</TD>
-<TR><TD><b>flags</b></TD><TD>Flag settings for grabbing</TD>
-</TABLE>
-The available flags are
-<P>
-<TABLE>
-<TR><TH>Name</TH><TH>Description</TH>
-<TR><TD><b>VIDEO_CAPTURE_ODD</b><TD>Capture only odd frames</TD>
-<TR><TD><b>VIDEO_CAPTURE_EVEN</b><TD>Capture only even frames</TD>
-</TABLE>
-<P>
-<H3>Video Sources</H3>
-Each video4linux video or audio device captures from one or more
-source <b>channels</b>. Each channel can be queries with the
-<b>VDIOCGCHAN</b> ioctl call. Before invoking this function the caller
-must set the channel field to the channel that is being queried. On return
-the <b>struct video_channel</b> is filled in with information about the
-nature of the channel itself.
-<P>
-The <b>VIDIOCSCHAN</b> ioctl takes an integer argument and switches the
-capture to this input. It is not defined whether parameters such as colour
-settings or tuning are maintained across a channel switch. The caller should
-maintain settings as desired for each channel. (This is reasonable as
-different video inputs may have different properties).
-<P>
-The <b>struct video_channel</b> consists of the following
-<P>
-<TABLE>
-<TR><TD><b>channel</b></TD><TD>The channel number</TD>
-<TR><TD><b>name</b></TD><TD>The input name - preferably reflecting the label
-on the card input itself</TD>
-<TR><TD><b>tuners</b></TD><TD>Number of tuners for this input</TD>
-<TR><TD><b>flags</b></TD><TD>Properties the tuner has</TD>
-<TR><TD><b>type</b></TD><TD>Input type (if known)</TD>
-<TR><TD><b>norm</b><TD>The norm for this channel</TD>
-</TABLE>
-<P>
-The flags defined are
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_VC_TUNER</b><TD>Channel has tuners.</TD>
-<TR><TD><b>VIDEO_VC_AUDIO</b><TD>Channel has audio.</TD>
-<TR><TD><b>VIDEO_VC_NORM</b><TD>Channel has norm setting.</TD>
-</TABLE>
-<P>
-The types defined are
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_TYPE_TV</b><TD>The input is a TV input.</TD>
-<TR><TD><b>VIDEO_TYPE_CAMERA</b><TD>The input is a camera.</TD>
-</TABLE>
-<P>
-<H3>Image Properties</H3>
-The image properties of the picture can be queried with the <b>VIDIOCGPICT</b>
-ioctl which fills in a <b>struct video_picture</b>. The <b>VIDIOCSPICT</b>
-ioctl allows values to be changed. All values except for the palette type
-are scaled between 0-65535.
-<P>
-The <b>struct video_picture</b> consists of the following fields
-<P>
-<TABLE>
-<TR><TD><b>brightness</b><TD>Picture brightness</TD>
-<TR><TD><b>hue</b><TD>Picture hue (colour only)</TD>
-<TR><TD><b>colour</b><TD>Picture colour (colour only)</TD>
-<TR><TD><b>contrast</b><TD>Picture contrast</TD>
-<TR><TD><b>whiteness</b><TD>The whiteness (greyscale only)</TD>
-<TR><TD><b>depth</b><TD>The capture depth (may need to match the frame buffer depth)</TD>
-<TR><TD><b>palette</b><TD>Reports the palette that should be used for this image</TD>
-</TABLE>
-<P>
-The following palettes are defined
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_PALETTE_GREY</b><TD>Linear intensity grey scale (255 is brightest).</TD>
-<TR><TD><b>VIDEO_PALETTE_HI240</b><TD>The BT848 8bit colour cube.</TD>
-<TR><TD><b>VIDEO_PALETTE_RGB565</b><TD>RGB565 packed into 16 bit words.</TD>
-<TR><TD><b>VIDEO_PALETTE_RGB555</b><TD>RGV555 packed into 16 bit words, top bit undefined.</TD>
-<TR><TD><b>VIDEO_PALETTE_RGB24</b><TD>RGB888 packed into 24bit words.</TD>
-<TR><TD><b>VIDEO_PALETTE_RGB32</b><TD>RGB888 packed into the low 3 bytes of 32bit words. The top 8bits are undefined.</TD>
-<TR><TD><b>VIDEO_PALETTE_YUV422</b><TD>Video style YUV422 - 8bits packed 4bits Y 2bits U 2bits V</TD>
-<TR><TD><b>VIDEO_PALETTE_YUYV</b><TD>Describe me</TD>
-<TR><TD><b>VIDEO_PALETTE_UYVY</b><TD>Describe me</TD>
-<TR><TD><b>VIDEO_PALETTE_YUV420</b><TD>YUV420 capture</TD>
-<TR><TD><b>VIDEO_PALETTE_YUV411</b><TD>YUV411 capture</TD>
-<TR><TD><b>VIDEO_PALETTE_RAW</b><TD>RAW capture (BT848)</TD>
-<TR><TD><b>VIDEO_PALETTE_YUV422P</b><TD>YUV 4:2:2 Planar</TD>
-<TR><TD><b>VIDEO_PALETTE_YUV411P</b><TD>YUV 4:1:1 Planar</TD>
-</TABLE>
-<P>
-<H3>Tuning</H3>
-Each video input channel can have one or more tuners associated with it. Many
-devices will not have tuners. TV cards and radio cards will have one or more
-tuners attached.
-<P>
-Tuners are described by a <b>struct video_tuner</b> which can be obtained by
-the <b>VIDIOCGTUNER</b> ioctl. Fill in the tuner number in the structure
-then pass the structure to the ioctl to have the data filled in. The
-tuner can be switched using <b>VIDIOCSTUNER</b> which takes an integer argument
-giving the tuner to use. A struct tuner has the following fields
-<P>
-<TABLE>
-<TR><TD><b>tuner</b><TD>Number of the tuner</TD>
-<TR><TD><b>name</b><TD>Canonical name for this tuner (eg FM/AM/TV)</TD>
-<TR><TD><b>rangelow</b><TD>Lowest tunable frequency</TD>
-<TR><TD><b>rangehigh</b><TD>Highest tunable frequency</TD>
-<TR><TD><b>flags</b><TD>Flags describing the tuner</TD>
-<TR><TD><b>mode</b><TD>The video signal mode if relevant</TD>
-<TR><TD><b>signal</b><TD>Signal strength if known - between 0-65535</TD>
-</TABLE>
-<P>
-The following flags exist
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_TUNER_PAL</b><TD>PAL tuning is supported</TD>
-<TR><TD><b>VIDEO_TUNER_NTSC</b><TD>NTSC tuning is supported</TD>
-<TR><TD><b>VIDEO_TUNER_SECAM</b><TD>SECAM tuning is supported</TD>
-<TR><TD><b>VIDEO_TUNER_LOW</b><TD>Frequency is in a lower range</TD>
-<TR><TD><b>VIDEO_TUNER_NORM</b><TD>The norm for this tuner is settable</TD>
-<TR><TD><b>VIDEO_TUNER_STEREO_ON</b><TD>The tuner is seeing stereo audio</TD>
-<TR><TD><b>VIDEO_TUNER_RDS_ON</b><TD>The tuner is seeing a RDS datastream</TD>
-<TR><TD><b>VIDEO_TUNER_MBS_ON</b><TD>The tuner is seeing a MBS datastream</TD>
-</TABLE>
-<P>
-The following modes are defined
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_MODE_PAL</b><TD>The tuner is in PAL mode</TD>
-<TR><TD><b>VIDEO_MODE_NTSC</b><TD>The tuner is in NTSC mode</TD>
-<TR><TD><b>VIDEO_MODE_SECAM</b><TD>The tuner is in SECAM mode</TD>
-<TR><TD><b>VIDEO_MODE_AUTO</b><TD>The tuner auto switches, or mode does not apply</TD>
-</TABLE>
-<P>
-Tuning frequencies are an unsigned 32bit value in 1/16th MHz or if the
-<b>VIDEO_TUNER_LOW</b> flag is set they are in 1/16th KHz. The current
-frequency is obtained as an unsigned long via the <b>VIDIOCGFREQ</b> ioctl and
-set by the <b>VIDIOCSFREQ</b> ioctl.
-<P>
-<H3>Audio</H3>
-TV and Radio devices have one or more audio inputs that may be selected.
-The audio properties are queried by passing a <b>struct video_audio</b> to <b>VIDIOCGAUDIO</b> ioctl. The
-<b>VIDIOCSAUDIO</b> ioctl sets audio properties.
-<P>
-The structure contains the following fields
-<P>
-<TABLE>
-<TR><TD><b>audio</b><TD>The channel number</TD>
-<TR><TD><b>volume</b><TD>The volume level</TD>
-<TR><TD><b>bass</b><TD>The bass level</TD>
-<TR><TD><b>treble</b><TD>The treble level</TD>
-<TR><TD><b>flags</b><TD>Flags describing the audio channel</TD>
-<TR><TD><b>name</b><TD>Canonical name for the audio input</TD>
-<TR><TD><b>mode</b><TD>The mode the audio input is in</TD>
-<TR><TD><b>balance</b><TD>The left/right balance</TD>
-<TR><TD><b>step</b><TD>Actual step used by the hardware</TD>
-</TABLE>
-<P>
-The following flags are defined
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_AUDIO_MUTE</b><TD>The audio is muted</TD>
-<TR><TD><b>VIDEO_AUDIO_MUTABLE</b><TD>Audio muting is supported</TD>
-<TR><TD><b>VIDEO_AUDIO_VOLUME</b><TD>The volume is controllable</TD>
-<TR><TD><b>VIDEO_AUDIO_BASS</b><TD>The bass is controllable</TD>
-<TR><TD><b>VIDEO_AUDIO_TREBLE</b><TD>The treble is controllable</TD>
-<TR><TD><b>VIDEO_AUDIO_BALANCE</b><TD>The balance is controllable</TD>
-</TABLE>
-<P>
-The following decoding modes are defined
-<P>
-<TABLE>
-<TR><TD><b>VIDEO_SOUND_MONO</b><TD>Mono signal</TD>
-<TR><TD><b>VIDEO_SOUND_STEREO</b><TD>Stereo signal (NICAM for TV)</TD>
-<TR><TD><b>VIDEO_SOUND_LANG1</b><TD>European TV alternate language 1</TD>
-<TR><TD><b>VIDEO_SOUND_LANG2</b><TD>European TV alternate language 2</TD>
-</TABLE>
-<P>
-<H3>Reading Images</H3>
-Each call to the <b>read</b> syscall returns the next available image
-from the device. It is up to the caller to set format and size (using
-the VIDIOCSPICT and VIDIOCSWIN ioctls) and then to pass a suitable
-size buffer and length to the function. Not all devices will support
-read operations.
-<P>
-A second way to handle image capture is via the mmap interface if supported.
-To use the mmap interface a user first sets the desired image size and depth
-properties. Next the VIDIOCGMBUF ioctl is issued. This reports the size
-of buffer to mmap and the offset within the buffer for each frame. The
-number of frames supported is device dependent and may only be one.
-<P>
-The video_mbuf structure contains the following fields
-<P>
-<TABLE>
-<TR><TD><b>size</b><TD>The number of bytes to map</TD>
-<TR><TD><b>frames</b><TD>The number of frames</TD>
-<TR><TD><b>offsets</b><TD>The offset of each frame</TD>
-</TABLE>
-<P>
-Once the mmap has been made the VIDIOCMCAPTURE ioctl starts the
-capture to a frame using the format and image size specified in the
-video_mmap (which should match or be below the initial query size).
-When the VIDIOCMCAPTURE ioctl returns the frame is <em>not</em>
-captured yet, the driver just instructed the hardware to start the
-capture. The application has to use the VIDIOCSYNC ioctl to wait
-until the capture of a frame is finished. VIDIOCSYNC takes the frame
-number you want to wait for as argument.
-<p>
-It is allowed to call VIDIOCMCAPTURE multiple times (with different
-frame numbers in video_mmap->frame of course) and thus have multiple
-outstanding capture requests. A simple way do to double-buffering
-using this feature looks like this:
-<pre>
-/* setup everything */
-VIDIOCMCAPTURE(0)
-while (whatever) {
- VIDIOCMCAPTURE(1)
- VIDIOCSYNC(0)
- /* process frame 0 while the hardware captures frame 1 */
- VIDIOCMCAPTURE(0)
- VIDIOCSYNC(1)
- /* process frame 1 while the hardware captures frame 0 */
-}
-</pre>
-Note that you are <em>not</em> limited to only two frames. The API
-allows up to 32 frames, the VIDIOCGMBUF ioctl returns the number of
-frames the driver granted. Thus it is possible to build deeper queues
-to avoid loosing frames on load peaks.
-<p>
-While capturing to memory the driver will make a "best effort" attempt
-to capture to screen as well if requested. This normally means all
-frames that "miss" memory mapped capture will go to the display.
-<P>
-A final ioctl exists to allow a device to obtain related devices if a
-driver has multiple components (for example video0 may not be associated
-with vbi0 which would cause an intercast display program to make a bad
-mistake). The VIDIOCGUNIT ioctl reports the unit numbers of the associated
-devices if any exist. The video_unit structure has the following fields.
-<P>
-<TABLE>
-<TR><TD><b>video</b><TD>Video capture device</TD>
-<TR><TD><b>vbi</b><TD>VBI capture device</TD>
-<TR><TD><b>radio</b><TD>Radio device</TD>
-<TR><TD><b>audio</b><TD>Audio mixer</TD>
-<TR><TD><b>teletext</b><TD>Teletext device</TD>
-</TABLE>
-<P>
-<H3>RDS Datastreams</H3>
-For radio devices that support it, it is possible to receive Radio Data
-System (RDS) data by means of a read() on the device. The data is packed in
-groups of three, as follows:
-<TABLE>
-<TR><TD>First Octet</TD><TD>Least Significant Byte of RDS Block</TD></TR>
-<TR><TD>Second Octet</TD><TD>Most Significant Byte of RDS Block
-<TR><TD>Third Octet</TD><TD>Bit 7:</TD><TD>Error bit. Indicates that
-an uncorrectable error occurred during reception of this block.</TD></TR>
-<TR><TD> </TD><TD>Bit 6:</TD><TD>Corrected bit. Indicates that
-an error was corrected for this data block.</TD></TR>
-<TR><TD> </TD><TD>Bits 5-3:</TD><TD>Received Offset. Indicates the
-offset received by the sync system.</TD></TR>
-<TR><TD> </TD><TD>Bits 2-0:</TD><TD>Offset Name. Indicates the
-offset applied to this data.</TD></TR>
-</TABLE>
-</BODY>
-</HTML>
+<TITLE>V4L API</TITLE>
+<H1>Video For Linux APIs</H1>
+<table border=0>
+<tr>
+<td>
+<A HREF=http://www.linuxtv.org/downloads/video4linux/API/V4L1_API.html>
+V4L original API</a>
+</td><td>
+Obsoleted by V4L2 API
+</td></tr><tr><td>
+<A HREF=http://www.linuxtv.org/downloads/video4linux/API/V4L2_API.html>
+V4L2 API</a>
+</td><td>
+Should be used for new projects
+</td></tr>
+</table>
card=12 - ASUS PVR-416
card=13 - MSI TV-@nywhere
card=14 - KWorld/VStream XPert DVB-T
-card=15 - DVICO FusionHDTV DVB-T1
+card=15 - DViCO FusionHDTV DVB-T1
card=16 - KWorld LTV883RF
-card=17 - DViCO - FusionHDTV 3 Gold
+card=17 - DViCO FusionHDTV 3 Gold-Q
card=18 - Hauppauge Nova-T DVB-T
card=19 - Conexant DVB-T reference design
card=20 - Provideo PV259
-card=21 - DVICO FusionHDTV DVB-T Plus
+card=21 - DViCO FusionHDTV DVB-T Plus
card=22 - digitalnow DNTV Live! DVB-T
card=23 - pcHDTV HD3000 HDTV
card=24 - Hauppauge WinTV 28xxx (Roslyn) models
card=25 - Digital-Logic MICROSPACE Entertainment Center (MEC)
card=26 - IODATA GV/BCTV7E
card=27 - PixelView PlayTV Ultra Pro (Stereo)
-card=28 - DViCO - FusionHDTV 3 Gold-T
+card=28 - DViCO FusionHDTV 3 Gold-T
55 -> LifeView FlyDVB-T DUO [5168:0306]
56 -> Avermedia AVerTV 307 [1461:a70a]
57 -> Avermedia AVerTV GO 007 FM [1461:f31f]
+ 58 -> ADS Tech Instant TV (saa7135) [1421:0350,1421:0370]
+ 59 -> Kworld/Tevion V-Stream Xpert TV PVR7134
+ 60 -> Typhoon DVB-T Duo Digital/Analog Cardbus
+ 61 -> Philips TOUGH DVB-T reference design
+ 62 -> Compro VideoMate TV Gold+II
+ 63 -> Kworld Xpert TV PVR7134
tuner=58 - Ymec TVision TVF-8531MF
tuner=59 - Ymec TVision TVF-5533MF
tuner=60 - Thomson DDT 7611 (ATSC/NTSC)
+tuner=61 - Tena TNF9533-D/IF
+tuner=62 - Philips TEA5767HN FM Radio
+tuner=63 - Philips FMD1216ME MK3 Hybrid Tuner
- 24.576MHz -> .audio_clock=0x200000
(xtal * .audio_clock = 51539600)
+Some details about 30/34/35:
+
+ - saa7130 - low-price chip, doesn't have mute, that is why all those
+ cards should have .mute field defined in their tuner structure.
+
+ - saa7134 - usual chip
+
+ - saa7133/35 - saa7135 is probably a marketing decision, since all those
+ chips identifies itself as 33 on pci.
Credits
=======
S: Supported
BTTV VIDEO4LINUX DRIVER
-P: Gerd Knorr
-M: kraxel@bytesex.org
+P: Mauro Carvalho Chehab
+M: mchehab@brturbo.com.br
L: video4linux-list@redhat.com
-W: http://bytesex.org/bttv/
-S: Orphan
+W: http://linuxtv.org
+S: Maintained
BUSLOGIC SCSI DRIVER
P: Leonard N. Zubkoff
S: Maintained
VIDEO FOR LINUX
-P: Gerd Knorr
-M: kraxel@bytesex.org
+P: Mauro Carvalho Chehab
+M: mchehab@brturbo.com.br
L: video4linux-list@redhat.com
-S: Orphan
+W: http://linuxtv.org
+S: Maintained
W1 DALLAS'S 1-WIRE BUS
P: Evgeniy Polyakov
Alternatively, if you want dynamic tick automatically enabled
during boot, pass "dyntick=enable" via the kernel command string.
+ Please note that dynamic tick may affect the accuracy of
+ timekeeping on some platforms depending on the implementation.
+ Currently at least OMAP platform is known to have accurate
+ timekeeping with dynamic tick.
+
config ARCH_DISCONTIGMEM_ENABLE
bool
default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
* 04-Nov-2004 Ben Dooks
* Fix standard IRQ wake for EINT0..4 and RTC
*
- * 22-Feb-2004 Ben Dooks
+ * 22-Feb-2005 Ben Dooks
* Fixed edge-triggering on ADC IRQ
+ *
+ * 28-Jun-2005 Ben Dooks
+ * Mark IRQ_LCD valid
*/
#include <linux/init.h>
#define INTMSK_UART1 (1UL << (IRQ_UART1 - IRQ_EINT0))
#define INTMSK_UART2 (1UL << (IRQ_UART2 - IRQ_EINT0))
#define INTMSK_ADCPARENT (1UL << (IRQ_ADCPARENT - IRQ_EINT0))
-#define INTMSK_LCD (1UL << (IRQ_LCD - IRQ_EINT0))
static inline void
s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit,
case IRQ_UART0:
case IRQ_UART1:
case IRQ_UART2:
- case IRQ_LCD:
case IRQ_ADCPARENT:
set_irq_chip(irqno, &s3c_irq_level_chip);
set_irq_handler(irqno, do_level_IRQ);
oprofilefs.o oprofile_stats.o \
timer_int.o )
-oprofile-y := $(DRIVER_OBJS) init.o
+oprofile-y := $(DRIVER_OBJS) init.o backtrace.o
oprofile-$(CONFIG_CPU_XSCALE) += common.o op_model_xscale.o
--- /dev/null
+/*
+ * Arm specific backtracing code for oprofile
+ *
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * Based on i386 oprofile backtrace code by John Levon, David Smith
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/oprofile.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/ptrace.h>
+#include <asm/uaccess.h>
+
+
+/*
+ * The registers we're interested in are at the end of the variable
+ * length saved register structure. The fp points at the end of this
+ * structure so the address of this struct is:
+ * (struct frame_tail *)(xxx->fp)-1
+ */
+struct frame_tail {
+ struct frame_tail *fp;
+ unsigned long sp;
+ unsigned long lr;
+} __attribute__((packed));
+
+
+#ifdef CONFIG_FRAME_POINTER
+static struct frame_tail* kernel_backtrace(struct frame_tail *tail)
+{
+ oprofile_add_trace(tail->lr);
+
+ /* frame pointers should strictly progress back up the stack
+ * (towards higher addresses) */
+ if (tail >= tail->fp)
+ return NULL;
+
+ return tail->fp-1;
+}
+#endif
+
+static struct frame_tail* user_backtrace(struct frame_tail *tail)
+{
+ struct frame_tail buftail;
+
+ /* hardware pte might not be valid due to dirty/accessed bit emulation
+ * so we use copy_from_user and benefit from exception fixups */
+ if (copy_from_user(&buftail, tail, sizeof(struct frame_tail)))
+ return NULL;
+
+ oprofile_add_trace(buftail.lr);
+
+ /* frame pointers should strictly progress back up the stack
+ * (towards higher addresses) */
+ if (tail >= buftail.fp)
+ return NULL;
+
+ return buftail.fp-1;
+}
+
+/* Compare two addresses and see if they're on the same page */
+#define CMP_ADDR_EQUAL(x,y,offset) ((((unsigned long) x) >> PAGE_SHIFT) \
+ == ((((unsigned long) y) + offset) >> PAGE_SHIFT))
+
+/* check that the page(s) containing the frame tail are present */
+static int pages_present(struct frame_tail *tail)
+{
+ struct mm_struct * mm = current->mm;
+
+ if (!check_user_page_readable(mm, (unsigned long)tail))
+ return 0;
+
+ if (CMP_ADDR_EQUAL(tail, tail, 8))
+ return 1;
+
+ if (!check_user_page_readable(mm, ((unsigned long)tail) + 8))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * | | /\ Higher addresses
+ * | |
+ * --------------- stack base (address of current_thread_info)
+ * | thread info |
+ * . .
+ * | stack |
+ * --------------- saved regs->ARM_fp value if valid (frame_tail address)
+ * . .
+ * --------------- struct pt_regs stored on stack (struct pt_regs *)
+ * | |
+ * . .
+ * | |
+ * --------------- %esp
+ * | |
+ * | | \/ Lower addresses
+ *
+ * Thus, &pt_regs <-> stack base restricts the valid(ish) fp values
+ */
+static int valid_kernel_stack(struct frame_tail *tail, struct pt_regs *regs)
+{
+ unsigned long tailaddr = (unsigned long)tail;
+ unsigned long stack = (unsigned long)regs;
+ unsigned long stack_base = (stack & ~(THREAD_SIZE - 1)) + THREAD_SIZE;
+
+ return (tailaddr > stack) && (tailaddr < stack_base);
+}
+
+void arm_backtrace(struct pt_regs const *regs, unsigned int depth)
+{
+ struct frame_tail *tail;
+ unsigned long last_address = 0;
+
+ tail = ((struct frame_tail *) regs->ARM_fp) - 1;
+
+ if (!user_mode(regs)) {
+
+#ifdef CONFIG_FRAME_POINTER
+ while (depth-- && tail && valid_kernel_stack(tail, regs)) {
+ tail = kernel_backtrace(tail);
+ }
+#endif
+ return;
+ }
+
+ while (depth-- && tail && !((unsigned long) tail & 3)) {
+ if ((!CMP_ADDR_EQUAL(last_address, tail, 0)
+ || !CMP_ADDR_EQUAL(last_address, tail, 8))
+ && !pages_present(tail))
+ return;
+ last_address = (unsigned long) tail;
+ tail = user_backtrace(tail);
+ }
+}
+
ret = pmu_init(ops, &op_xscale_spec);
#endif
+ ops->backtrace = arm_backtrace;
+
return ret;
}
extern struct op_arm_model_spec op_xscale_spec;
#endif
+extern void arm_backtrace(struct pt_regs * const regs, unsigned int depth);
+
extern int __init pmu_init(struct oprofile_operations *ops, struct op_arm_model_spec *spec);
extern void pmu_exit(void);
#endif /* OP_ARM_MODEL_H */
int main(int argc, char ** argv)
{
- unsigned int i, c, sz, setup_sectors;
+ unsigned int i, sz, setup_sectors;
+ int c;
u32 sys_size;
byte major_root, minor_root;
struct stat sb;
#endif
#ifdef CONFIG_PCI_MMCONFIG
-static int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
+/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
+struct acpi_table_mcfg_config *pci_mmcfg_config;
+int pci_mmcfg_config_num;
+
+int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
{
struct acpi_table_mcfg *mcfg;
+ unsigned long i;
+ int config_size;
if (!phys_addr || !size)
return -EINVAL;
return -ENODEV;
}
- if (mcfg->base_reserved) {
- printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n");
+ /* how many config structures do we have */
+ pci_mmcfg_config_num = 0;
+ i = size - sizeof(struct acpi_table_mcfg);
+ while (i >= sizeof(struct acpi_table_mcfg_config)) {
+ ++pci_mmcfg_config_num;
+ i -= sizeof(struct acpi_table_mcfg_config);
+ };
+ if (pci_mmcfg_config_num == 0) {
+ printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
return -ENODEV;
}
- pci_mmcfg_base_addr = mcfg->base_address;
+ config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
+ pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
+ if (!pci_mmcfg_config) {
+ printk(KERN_WARNING PREFIX
+ "No memory for MCFG config tables\n");
+ return -ENOMEM;
+ }
+
+ memcpy(pci_mmcfg_config, &mcfg->config, config_size);
+ for (i = 0; i < pci_mmcfg_config_num; ++i) {
+ if (mcfg->config[i].base_reserved) {
+ printk(KERN_ERR PREFIX
+ "MMCONFIG not in low 4GB of memory\n");
+ return -ENODEV;
+ }
+ }
return 0;
}
-#else
-#define acpi_parse_mcfg NULL
-#endif /* !CONFIG_PCI_MMCONFIG */
+#endif /* CONFIG_PCI_MMCONFIG */
#ifdef CONFIG_X86_LOCAL_APIC
static int __init
EXPORT_SYMBOL(acpi_unmap_lsapic);
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+int
+acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
+{
+ /* TBD */
+ return -EINVAL;
+}
+EXPORT_SYMBOL(acpi_register_ioapic);
+
+int
+acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
+{
+ /* TBD */
+ return -EINVAL;
+}
+EXPORT_SYMBOL(acpi_unregister_ioapic);
+
static unsigned long __init
acpi_scan_rsdp (
unsigned long start,
acpi_process_madt();
acpi_table_parse(ACPI_HPET, acpi_parse_hpet);
- acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
return 0;
}
int pci_routeirq;
int pcibios_last_bus = -1;
-struct pci_bus *pci_root_bus = NULL;
+unsigned long pirq_table_addr;
+struct pci_bus *pci_root_bus;
struct pci_raw_ops *raw_pci_ops;
static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
printk("PCI: Probing PCI hardware (bus %02x)\n", busnum);
- return pci_scan_bus(busnum, &pci_root_ops, NULL);
+ return pci_scan_bus_parented(NULL, busnum, &pci_root_ops, NULL);
}
extern u8 pci_cache_line_size;
} else if (!strcmp(str, "biosirq")) {
pci_probe |= PCI_BIOS_IRQ_SCAN;
return NULL;
+ } else if (!strncmp(str, "pirqaddr=", 9)) {
+ pirq_table_addr = simple_strtoul(str+9, NULL, 0);
+ return NULL;
}
#endif
#ifdef CONFIG_PCI_DIRECT
int (*pcibios_enable_irq)(struct pci_dev *dev) = NULL;
+/*
+ * Check passed address for the PCI IRQ Routing Table signature
+ * and perform checksum verification.
+ */
+
+static inline struct irq_routing_table * pirq_check_routing_table(u8 *addr)
+{
+ struct irq_routing_table *rt;
+ int i;
+ u8 sum;
+
+ rt = (struct irq_routing_table *) addr;
+ if (rt->signature != PIRQ_SIGNATURE ||
+ rt->version != PIRQ_VERSION ||
+ rt->size % 16 ||
+ rt->size < sizeof(struct irq_routing_table))
+ return NULL;
+ sum = 0;
+ for (i=0; i < rt->size; i++)
+ sum += addr[i];
+ if (!sum) {
+ DBG("PCI: Interrupt Routing Table found at 0x%p\n", rt);
+ return rt;
+ }
+ return NULL;
+}
+
+
+
/*
* Search 0xf0000 -- 0xfffff for the PCI IRQ Routing Table.
*/
{
u8 *addr;
struct irq_routing_table *rt;
- int i;
- u8 sum;
+ if (pirq_table_addr) {
+ rt = pirq_check_routing_table((u8 *) __va(pirq_table_addr));
+ if (rt)
+ return rt;
+ printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n");
+ }
for(addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000); addr += 16) {
- rt = (struct irq_routing_table *) addr;
- if (rt->signature != PIRQ_SIGNATURE ||
- rt->version != PIRQ_VERSION ||
- rt->size % 16 ||
- rt->size < sizeof(struct irq_routing_table))
- continue;
- sum = 0;
- for(i=0; i<rt->size; i++)
- sum += addr[i];
- if (!sum) {
- DBG("PCI: Interrupt Routing Table found at 0x%p\n", rt);
+ rt = pirq_check_routing_table(addr);
+ if (rt)
return rt;
- }
}
return NULL;
}
printk("PCI: Probing PCI hardware\n");
pci_root_bus = pcibios_scan_root(0);
+ if (pci_root_bus)
+ pci_bus_add_devices(pci_root_bus);
pcibios_fixup_peer_bridges();
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/acpi.h>
#include "pci.h"
-/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
-u32 pci_mmcfg_base_addr;
-
#define mmcfg_virt_addr ((void __iomem *) fix_to_virt(FIX_PCIE_MCFG))
/* The base address of the last MMCONFIG device accessed */
/*
* Functions for accessing PCI configuration space with MMCONFIG accesses
*/
+static u32 get_base_addr(unsigned int seg, int bus)
+{
+ int cfg_num = -1;
+ struct acpi_table_mcfg_config *cfg;
+
+ while (1) {
+ ++cfg_num;
+ if (cfg_num >= pci_mmcfg_config_num) {
+ /* something bad is going on, no cfg table is found. */
+ /* so we fall back to the old way we used to do this */
+ /* and just rely on the first entry to be correct. */
+ return pci_mmcfg_config[0].base_address;
+ }
+ cfg = &pci_mmcfg_config[cfg_num];
+ if (cfg->pci_segment_group_number != seg)
+ continue;
+ if ((cfg->start_bus_number <= bus) &&
+ (cfg->end_bus_number >= bus))
+ return cfg->base_address;
+ }
+}
-static inline void pci_exp_set_dev_base(int bus, int devfn)
+static inline void pci_exp_set_dev_base(unsigned int seg, int bus, int devfn)
{
- u32 dev_base = pci_mmcfg_base_addr | (bus << 20) | (devfn << 12);
+ u32 dev_base = get_base_addr(seg, bus) | (bus << 20) | (devfn << 12);
if (dev_base != mmcfg_last_accessed_device) {
mmcfg_last_accessed_device = dev_base;
set_fixmap_nocache(FIX_PCIE_MCFG, dev_base);
spin_lock_irqsave(&pci_config_lock, flags);
- pci_exp_set_dev_base(bus, devfn);
+ pci_exp_set_dev_base(seg, bus, devfn);
switch (len) {
case 1:
spin_lock_irqsave(&pci_config_lock, flags);
- pci_exp_set_dev_base(bus, devfn);
+ pci_exp_set_dev_base(seg, bus, devfn);
switch (len) {
case 1:
{
if ((pci_probe & PCI_PROBE_MMCONF) == 0)
goto out;
- if (!pci_mmcfg_base_addr)
+
+ acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
+ if ((pci_mmcfg_config_num == 0) ||
+ (pci_mmcfg_config == NULL) ||
+ (pci_mmcfg_config[0].base_address == 0))
goto out;
/* Kludge for now. Don't use mmconfig on AMD systems because
return 0;
pci_root_bus = pcibios_scan_root(0);
+ if (pci_root_bus)
+ pci_bus_add_devices(pci_root_bus);
if (num_online_nodes() > 1)
for_each_online_node(quad) {
if (quad == 0)
#define PCI_ASSIGN_ALL_BUSSES 0x4000
extern unsigned int pci_probe;
+extern unsigned long pirq_table_addr;
/* pci-i386.c */
if (BAD_MADT_ENTRY(iosapic, end))
return -EINVAL;
- iosapic_init(iosapic->address, iosapic->global_irq_base);
-
- return 0;
+ return iosapic_init(iosapic->address, iosapic->global_irq_base);
}
#ifdef CONFIG_ACPI_NUMA
-acpi_status __init
+acpi_status __devinit
acpi_map_iosapic (acpi_handle handle, u32 depth, void *context, void **ret)
{
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
return AE_OK;
}
#endif /* CONFIG_NUMA */
+
+int
+acpi_register_ioapic (acpi_handle handle, u64 phys_addr, u32 gsi_base)
+{
+ int err;
+
+ if ((err = iosapic_init(phys_addr, gsi_base)))
+ return err;
+
+#if CONFIG_ACPI_NUMA
+ acpi_map_iosapic(handle, 0, NULL, NULL);
+#endif /* CONFIG_ACPI_NUMA */
+
+ return 0;
+}
+EXPORT_SYMBOL(acpi_register_ioapic);
+
+int
+acpi_unregister_ioapic (acpi_handle handle, u32 gsi_base)
+{
+ return iosapic_remove(gsi_base);
+}
+EXPORT_SYMBOL(acpi_unregister_ioapic);
+
#endif /* CONFIG_ACPI_BOOT */
char __iomem *addr; /* base address of IOSAPIC */
unsigned int gsi_base; /* first GSI assigned to this IOSAPIC */
unsigned short num_rte; /* number of RTE in this IOSAPIC */
+ int rtes_inuse; /* # of RTEs in use on this IOSAPIC */
#ifdef CONFIG_NUMA
unsigned short node; /* numa node association via pxm */
#endif
} iosapic_lists[NR_IOSAPICS];
-static int num_iosapic;
-
-static unsigned char pcat_compat __initdata; /* 8259 compatibility flag */
+static unsigned char pcat_compat __devinitdata; /* 8259 compatibility flag */
static int iosapic_kmalloc_ok;
static LIST_HEAD(free_rte_list);
{
int i;
- for (i = 0; i < num_iosapic; i++) {
+ for (i = 0; i < NR_IOSAPICS; i++) {
if ((unsigned) (gsi - iosapic_lists[i].gsi_base) < iosapic_lists[i].num_rte)
return i;
}
rte->refcnt++;
list_add_tail(&rte->rte_list, &iosapic_intr_info[vector].rtes);
iosapic_intr_info[vector].count++;
+ iosapic_lists[index].rtes_inuse++;
}
else if (vector_is_shared(vector)) {
struct iosapic_intr_info *info = &iosapic_intr_info[vector];
iosapic_unregister_intr (unsigned int gsi)
{
unsigned long flags;
- int irq, vector;
+ int irq, vector, index;
irq_desc_t *idesc;
u32 low32;
unsigned long trigger, polarity;
list_del(&rte->rte_list);
iosapic_intr_info[vector].count--;
iosapic_free_rte(rte);
+ index = find_iosapic(gsi);
+ iosapic_lists[index].rtes_inuse--;
+ WARN_ON(iosapic_lists[index].rtes_inuse < 0);
trigger = iosapic_intr_info[vector].trigger;
polarity = iosapic_intr_info[vector].polarity;
}
}
-void __init
+static inline int
+iosapic_alloc (void)
+{
+ int index;
+
+ for (index = 0; index < NR_IOSAPICS; index++)
+ if (!iosapic_lists[index].addr)
+ return index;
+
+ printk(KERN_WARNING "%s: failed to allocate iosapic\n", __FUNCTION__);
+ return -1;
+}
+
+static inline void
+iosapic_free (int index)
+{
+ memset(&iosapic_lists[index], 0, sizeof(iosapic_lists[0]));
+}
+
+static inline int
+iosapic_check_gsi_range (unsigned int gsi_base, unsigned int ver)
+{
+ int index;
+ unsigned int gsi_end, base, end;
+
+ /* check gsi range */
+ gsi_end = gsi_base + ((ver >> 16) & 0xff);
+ for (index = 0; index < NR_IOSAPICS; index++) {
+ if (!iosapic_lists[index].addr)
+ continue;
+
+ base = iosapic_lists[index].gsi_base;
+ end = base + iosapic_lists[index].num_rte - 1;
+
+ if (gsi_base < base && gsi_end < base)
+ continue;/* OK */
+
+ if (gsi_base > end && gsi_end > end)
+ continue; /* OK */
+
+ return -EBUSY;
+ }
+ return 0;
+}
+
+int __devinit
iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
{
- int num_rte;
+ int num_rte, err, index;
unsigned int isa_irq, ver;
char __iomem *addr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&iosapic_lock, flags);
+ {
+ addr = ioremap(phys_addr, 0);
+ ver = iosapic_version(addr);
- addr = ioremap(phys_addr, 0);
- ver = iosapic_version(addr);
+ if ((err = iosapic_check_gsi_range(gsi_base, ver))) {
+ iounmap(addr);
+ spin_unlock_irqrestore(&iosapic_lock, flags);
+ return err;
+ }
- /*
- * The MAX_REDIR register holds the highest input pin
- * number (starting from 0).
- * We add 1 so that we can use it for number of pins (= RTEs)
- */
- num_rte = ((ver >> 16) & 0xff) + 1;
+ /*
+ * The MAX_REDIR register holds the highest input pin
+ * number (starting from 0).
+ * We add 1 so that we can use it for number of pins (= RTEs)
+ */
+ num_rte = ((ver >> 16) & 0xff) + 1;
- iosapic_lists[num_iosapic].addr = addr;
- iosapic_lists[num_iosapic].gsi_base = gsi_base;
- iosapic_lists[num_iosapic].num_rte = num_rte;
+ index = iosapic_alloc();
+ iosapic_lists[index].addr = addr;
+ iosapic_lists[index].gsi_base = gsi_base;
+ iosapic_lists[index].num_rte = num_rte;
#ifdef CONFIG_NUMA
- iosapic_lists[num_iosapic].node = MAX_NUMNODES;
+ iosapic_lists[index].node = MAX_NUMNODES;
#endif
- num_iosapic++;
+ }
+ spin_unlock_irqrestore(&iosapic_lock, flags);
if ((gsi_base == 0) && pcat_compat) {
/*
for (isa_irq = 0; isa_irq < 16; ++isa_irq)
iosapic_override_isa_irq(isa_irq, isa_irq, IOSAPIC_POL_HIGH, IOSAPIC_EDGE);
}
+ return 0;
+}
+
+#ifdef CONFIG_HOTPLUG
+int
+iosapic_remove (unsigned int gsi_base)
+{
+ int index, err = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&iosapic_lock, flags);
+ {
+ index = find_iosapic(gsi_base);
+ if (index < 0) {
+ printk(KERN_WARNING "%s: No IOSAPIC for GSI base %u\n",
+ __FUNCTION__, gsi_base);
+ goto out;
+ }
+
+ if (iosapic_lists[index].rtes_inuse) {
+ err = -EBUSY;
+ printk(KERN_WARNING "%s: IOSAPIC for GSI base %u is busy\n",
+ __FUNCTION__, gsi_base);
+ goto out;
+ }
+
+ iounmap(iosapic_lists[index].addr);
+ iosapic_free(index);
+ }
+ out:
+ spin_unlock_irqrestore(&iosapic_lock, flags);
+ return err;
}
+#endif /* CONFIG_HOTPLUG */
#ifdef CONFIG_NUMA
-void __init
+void __devinit
map_iosapic_to_node(unsigned int gsi_base, int node)
{
int index;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, add_window,
&info);
- pbus = pci_scan_bus(bus, &pci_root_ops, controller);
+ pbus = pci_scan_bus_parented(NULL, bus, &pci_root_ops, controller);
if (pbus)
pcibios_setup_root_windows(pbus, controller);
res->end = region->end + offset;
}
+static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
+{
+ unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
+ struct resource *devr = &dev->resource[idx];
+
+ if (!dev->bus)
+ return 0;
+ for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
+ struct resource *busr = dev->bus->resource[i];
+
+ if (!busr || ((busr->flags ^ devr->flags) & type_mask))
+ continue;
+ if ((devr->start) && (devr->start >= busr->start) &&
+ (devr->end <= busr->end))
+ return 1;
+ }
+ return 0;
+}
+
static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
struct pci_bus_region region;
region.start = dev->resource[i].start;
region.end = dev->resource[i].end;
pcibios_bus_to_resource(dev, &dev->resource[i], ®ion);
- pci_claim_resource(dev, i);
+ if ((is_valid_resource(dev, i)))
+ pci_claim_resource(dev, i);
}
}
{
struct pci_dev *dev;
+ if (b->self) {
+ pci_read_bridge_bases(b);
+ pcibios_fixup_device_resources(b->self);
+ }
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
u16 cmd, old_cmd;
int idx;
struct resource *r;
+ unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM;
if (!dev)
return -EINVAL;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
- for (idx=0; idx<6; idx++) {
+ for (idx=0; idx<PCI_NUM_RESOURCES; idx++) {
/* Only set up the desired resources. */
if (!(mask & (1 << idx)))
continue;
r = &dev->resource[idx];
+ if (!(r->flags & type_mask))
+ continue;
+ if ((idx == PCI_ROM_RESOURCE) &&
+ (!(r->flags & IORESOURCE_ROM_ENABLE)))
+ continue;
if (!r->start && r->end) {
printk(KERN_ERR
"PCI: Device %s not available because of resource collisions\n",
if (r->flags & IORESOURCE_MEM)
cmd |= PCI_COMMAND_MEMORY;
}
- if (dev->resource[PCI_ROM_RESOURCE].start)
- cmd |= PCI_COMMAND_MEMORY;
if (cmd != old_cmd) {
printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
*offset += hose->pci_mem_offset;
res_bit = IORESOURCE_MEM;
} else {
- io_offset = (unsigned long)hose->io_base_virt;
+ io_offset = hose->io_base_virt - ___IO_BASE;
*offset += io_offset;
res_bit = IORESOURCE_IO;
}
/* found it! construct the final physical address */
if (mmap_state == pci_mmap_io)
- *offset += hose->io_base_phys - _IO_BASE;
+ *offset += hose->io_base_phys - io_offset;
return rp;
}
return result;
}
+void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc,
+ u64 *start, u64 *end)
+{
+ struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
+ unsigned long offset = 0;
+
+ if (hose == NULL)
+ return;
+
+ if (rsrc->flags & IORESOURCE_IO)
+ offset = ___IO_BASE - hose->io_base_virt + hose->io_base_phys;
+
+ *start = rsrc->start + offset;
+ *end = rsrc->end + offset;
+}
+
void __init
pci_init_resource(struct resource *res, unsigned long start, unsigned long end,
int flags, char *name)
spin_lock(&desc->lock);
if (!noirqdebug)
- note_interrupt(irq, desc, action_ret);
+ note_interrupt(irq, desc, action_ret, regs);
if (likely(!(desc->status & IRQ_PENDING)))
break;
desc->status &= ~IRQ_PENDING;
*offset += hose->pci_mem_offset;
res_bit = IORESOURCE_MEM;
} else {
- io_offset = (unsigned long)hose->io_base_virt;
+ io_offset = (unsigned long)hose->io_base_virt - pci_io_base;
*offset += io_offset;
res_bit = IORESOURCE_IO;
}
/* found it! construct the final physical address */
if (mmap_state == pci_mmap_io)
- *offset += hose->io_base_phys - io_offset;
+ *offset += hose->io_base_phys - io_offset;
return rp;
}
}
EXPORT_SYMBOL(pci_read_irq_line);
+void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc,
+ u64 *start, u64 *end)
+{
+ struct pci_controller *hose = pci_bus_to_host(dev->bus);
+ unsigned long offset = 0;
+
+ if (hose == NULL)
+ return;
+
+ if (rsrc->flags & IORESOURCE_IO)
+ offset = pci_io_base - (unsigned long)hose->io_base_virt +
+ hose->io_base_phys;
+
+ *start = rsrc->start + offset;
+ *end = rsrc->end + offset;
+}
+
#endif /* CONFIG_PPC_MULTIPLATFORM */
source "drivers/Kconfig"
-config PRINTER
- tristate "Parallel printer support"
- depends on PARPORT
- ---help---
- If you intend to attach a printer to the parallel port of your Linux
- box (as opposed to using a serial printer; if the connector at the
- printer has 9 or 25 holes ["female"], then it's serial), say Y.
- Also read the Printing-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
-
- It is possible to share one parallel port among several devices
- (e.g. printer and ZIP drive) and it is safe to compile the
- corresponding drivers into the kernel. If you want to compile this
- driver as a module however, choose M here and read
- <file:Documentation/parport.txt>. The module will be called lp.
-
- If you have several parallel ports, you can specify which ports to
- use with the "lp" kernel command line option. (Try "man bootparam"
- or see the documentation of your boot loader (silo) about how to pass
- options to the kernel at boot time.) The syntax of the "lp" command
- line option can be found in <file:drivers/char/lp.c>.
-
- If you have more than 8 printers, you need to increase the LP_NO
- macro in lp.c and the PARPORT_MAX macro in parport.h.
-
-source "mm/Kconfig"
-
-endmenu
-
-source "drivers/base/Kconfig"
-
-source "drivers/video/Kconfig"
-
-source "drivers/mtd/Kconfig"
-
-source "drivers/serial/Kconfig"
-
if !SUN4
source "drivers/sbus/char/Kconfig"
endif
-source "drivers/block/Kconfig"
-
-# Don't frighten a common SBus user
-if PCI
-
-source "drivers/ide/Kconfig"
-
-endif
-
-source "drivers/isdn/Kconfig"
-
-source "drivers/scsi/Kconfig"
-
-source "drivers/fc4/Kconfig"
-
-source "drivers/md/Kconfig"
-
-source "net/Kconfig"
-
# This one must be before the filesystem configs. -DaveM
menu "Unix98 PTY support"
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/acpi.h>
#include "pci.h"
#define MMCONFIG_APER_SIZE (256*1024*1024)
-/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
-u32 pci_mmcfg_base_addr;
-
/* Static virtual mapping of the MMCONFIG aperture */
-char *pci_mmcfg_virt;
+struct mmcfg_virt {
+ struct acpi_table_mcfg_config *cfg;
+ char *virt;
+};
+static struct mmcfg_virt *pci_mmcfg_virt;
-static inline char *pci_dev_base(unsigned int bus, unsigned int devfn)
+static char *get_virt(unsigned int seg, int bus)
{
- return pci_mmcfg_virt + ((bus << 20) | (devfn << 12));
+ int cfg_num = -1;
+ struct acpi_table_mcfg_config *cfg;
+
+ while (1) {
+ ++cfg_num;
+ if (cfg_num >= pci_mmcfg_config_num) {
+ /* something bad is going on, no cfg table is found. */
+ /* so we fall back to the old way we used to do this */
+ /* and just rely on the first entry to be correct. */
+ return pci_mmcfg_virt[0].virt;
+ }
+ cfg = pci_mmcfg_virt[cfg_num].cfg;
+ if (cfg->pci_segment_group_number != seg)
+ continue;
+ if ((cfg->start_bus_number <= bus) &&
+ (cfg->end_bus_number >= bus))
+ return pci_mmcfg_virt[cfg_num].virt;
+ }
+}
+
+static inline char *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn)
+{
+
+ return get_virt(seg, bus) + ((bus << 20) | (devfn << 12));
}
static int pci_mmcfg_read(unsigned int seg, unsigned int bus,
unsigned int devfn, int reg, int len, u32 *value)
{
- char *addr = pci_dev_base(bus, devfn);
+ char *addr = pci_dev_base(seg, bus, devfn);
if (unlikely(!value || (bus > 255) || (devfn > 255) || (reg > 4095)))
return -EINVAL;
static int pci_mmcfg_write(unsigned int seg, unsigned int bus,
unsigned int devfn, int reg, int len, u32 value)
{
- char *addr = pci_dev_base(bus,devfn);
+ char *addr = pci_dev_base(seg, bus, devfn);
if (unlikely((bus > 255) || (devfn > 255) || (reg > 4095)))
return -EINVAL;
static int __init pci_mmcfg_init(void)
{
+ int i;
+
if ((pci_probe & PCI_PROBE_MMCONF) == 0)
return 0;
- if (!pci_mmcfg_base_addr)
+
+ acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
+ if ((pci_mmcfg_config_num == 0) ||
+ (pci_mmcfg_config == NULL) ||
+ (pci_mmcfg_config[0].base_address == 0))
return 0;
/* Kludge for now. Don't use mmconfig on AMD systems because
return 0;
/* RED-PEN i386 doesn't do _nocache right now */
- pci_mmcfg_virt = ioremap_nocache(pci_mmcfg_base_addr, MMCONFIG_APER_SIZE);
- if (!pci_mmcfg_virt) {
- printk("PCI: Cannot map mmconfig aperture\n");
+ pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL);
+ if (pci_mmcfg_virt == NULL) {
+ printk("PCI: Can not allocate memory for mmconfig structures\n");
return 0;
- }
+ }
+ for (i = 0; i < pci_mmcfg_config_num; ++i) {
+ pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i];
+ pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address, MMCONFIG_APER_SIZE);
+ if (!pci_mmcfg_virt[i].virt) {
+ printk("PCI: Cannot map mmconfig aperture for segment %d\n",
+ pci_mmcfg_config[i].pci_segment_group_number);
+ return 0;
+ }
+ printk(KERN_INFO "PCI: Using MMCONFIG at %x\n", pci_mmcfg_config[i].base_address);
+ }
- printk(KERN_INFO "PCI: Using MMCONFIG at %x\n", pci_mmcfg_base_addr);
raw_pci_ops = &pci_mmcfg;
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
return_VALUE(-ENODEV);
}
- result = acpi_bus_scan(*device);
+ result = acpi_bus_start(*device);
return_VALUE(result);
}
/**
- * acpi_os_get_pci_id
+ * acpi_get_pci_id
* ------------------
* This function is used by the ACPI Interpreter (a.k.a. Core Subsystem)
* to resolve PCI information for ACPI-PCI devices defined in the namespace.
* This typically occurs when resolving PCI operation region information.
*/
-#ifdef ACPI_FUTURE_USAGE
acpi_status
-acpi_os_get_pci_id (
+acpi_get_pci_id (
acpi_handle handle,
struct acpi_pci_id *id)
{
struct acpi_device *device = NULL;
struct acpi_pci_data *data = NULL;
- ACPI_FUNCTION_TRACE("acpi_os_get_pci_id");
+ ACPI_FUNCTION_TRACE("acpi_get_pci_id");
if (!id)
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
status = acpi_get_data(handle, acpi_pci_data_handler, (void**) &data);
- if (ACPI_FAILURE(status) || !data || !data->dev) {
+ if (ACPI_FAILURE(status) || !data) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Invalid ACPI-PCI context for device %s\n",
acpi_device_bid(device)));
return_ACPI_STATUS(AE_OK);
}
-#endif /* ACPI_FUTURE_USAGE */
+EXPORT_SYMBOL(acpi_get_pci_id);
int
char *pathname = NULL;
struct acpi_buffer buffer = {0, NULL};
acpi_handle handle = NULL;
+ struct pci_dev *dev;
+ struct pci_bus *bus;
ACPI_FUNCTION_TRACE("acpi_pci_bind");
* Locate matching device in PCI namespace. If it doesn't exist
* this typically means that the device isn't currently inserted
* (e.g. docking station, port replicator, etc.).
+ * We cannot simply search the global pci device list, since
+ * PCI devices are added to the global pci list when the root
+ * bridge start ops are run, which may not have happened yet.
*/
- data->dev = pci_find_slot(data->id.bus, PCI_DEVFN(data->id.device, data->id.function));
+ bus = pci_find_bus(data->id.segment, data->id.bus);
+ if (bus) {
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (dev->devfn == PCI_DEVFN(data->id.device,
+ data->id.function)) {
+ data->dev = dev;
+ break;
+ }
+ }
+ }
if (!data->dev) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
static int acpi_pci_root_add (struct acpi_device *device);
static int acpi_pci_root_remove (struct acpi_device *device, int type);
+static int acpi_pci_root_start (struct acpi_device *device);
static struct acpi_driver acpi_pci_root_driver = {
.name = ACPI_PCI_ROOT_DRIVER_NAME,
.ops = {
.add = acpi_pci_root_add,
.remove = acpi_pci_root_remove,
+ .start = acpi_pci_root_start,
},
};
if (!root)
return_VALUE(-ENOMEM);
memset(root, 0, sizeof(struct acpi_pci_root));
+ INIT_LIST_HEAD(&root->node);
root->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
root->id.bus);
end:
- if (result)
+ if (result) {
+ if (!list_empty(&root->node))
+ list_del(&root->node);
kfree(root);
+ }
return_VALUE(result);
}
+static int
+acpi_pci_root_start (
+ struct acpi_device *device)
+{
+ struct acpi_pci_root *root;
+
+ ACPI_FUNCTION_TRACE("acpi_pci_root_start");
+
+ list_for_each_entry(root, &acpi_pci_roots, node) {
+ if (root->handle == device->handle) {
+ pci_bus_add_devices(root->bus);
+ return_VALUE(0);
+ }
+ }
+ return_VALUE(-ENODEV);
+}
static int
acpi_pci_root_remove (
return_VALUE(-ENODEV);
}
- acpi_bus_scan(*device);
+ acpi_bus_start(*device);
pr = acpi_driver_data(*device);
if (!pr)
* upon possible configuration and currently allocated resources.
*/
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver successfully bound to device\n"));
+ return_VALUE(0);
+}
+
+int
+acpi_start_single_object (
+ struct acpi_device *device)
+{
+ int result = 0;
+ struct acpi_driver *driver;
+
+ ACPI_FUNCTION_TRACE("acpi_start_single_object");
+
+ if (!(driver = device->driver))
+ return_VALUE(0);
+
if (driver->ops.start) {
result = driver->ops.start(device);
if (result && driver->ops.remove)
driver->ops.remove(device, ACPI_BUS_REMOVAL_NORMAL);
- return_VALUE(result);
}
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver successfully bound to device\n"));
-
- if (driver->ops.scan) {
- driver->ops.scan(device);
- }
-
- return_VALUE(0);
+ return_VALUE(result);
}
static int acpi_driver_attach(struct acpi_driver * drv)
if (!acpi_bus_match(dev, drv)) {
if (!acpi_bus_driver_init(dev, drv)) {
+ acpi_start_single_object(dev);
atomic_inc(&drv->references);
count++;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n",
}
-int
-acpi_bus_add (
+static int
+acpi_add_single_object (
struct acpi_device **child,
struct acpi_device *parent,
acpi_handle handle,
int result = 0;
struct acpi_device *device = NULL;
- ACPI_FUNCTION_TRACE("acpi_bus_add");
+ ACPI_FUNCTION_TRACE("acpi_add_single_object");
if (!child)
return_VALUE(-EINVAL);
*
* TBD: Assumes LDM provides driver hot-plug capability.
*/
- acpi_bus_find_driver(device);
+ result = acpi_bus_find_driver(device);
end:
if (!result)
return_VALUE(result);
}
-EXPORT_SYMBOL(acpi_bus_add);
-int acpi_bus_scan (struct acpi_device *start)
+static int acpi_bus_scan (struct acpi_device *start,
+ struct acpi_bus_ops *ops)
{
acpi_status status = AE_OK;
struct acpi_device *parent = NULL;
continue;
}
- status = acpi_bus_add(&child, parent, chandle, type);
- if (ACPI_FAILURE(status))
- continue;
+ if (ops->acpi_op_add)
+ status = acpi_add_single_object(&child, parent,
+ chandle, type);
+ else
+ status = acpi_bus_get_device(chandle, &child);
+
+ if (ACPI_FAILURE(status))
+ continue;
+
+ if (ops->acpi_op_start) {
+ status = acpi_start_single_object(child);
+ if (ACPI_FAILURE(status))
+ continue;
+ }
/*
* If the device is present, enabled, and functioning then
return_VALUE(0);
}
-EXPORT_SYMBOL(acpi_bus_scan);
+int
+acpi_bus_add (
+ struct acpi_device **child,
+ struct acpi_device *parent,
+ acpi_handle handle,
+ int type)
+{
+ int result;
+ struct acpi_bus_ops ops;
+
+ ACPI_FUNCTION_TRACE("acpi_bus_add");
+
+ result = acpi_add_single_object(child, parent, handle, type);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ result = acpi_bus_scan(*child, &ops);
+ }
+ return_VALUE(result);
+}
+EXPORT_SYMBOL(acpi_bus_add);
+
+int
+acpi_bus_start (
+ struct acpi_device *device)
+{
+ int result;
+ struct acpi_bus_ops ops;
+
+ ACPI_FUNCTION_TRACE("acpi_bus_start");
+
+ if (!device)
+ return_VALUE(-EINVAL);
+
+ result = acpi_start_single_object(device);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_start = 1;
+ result = acpi_bus_scan(device, &ops);
+ }
+ return_VALUE(result);
+}
+EXPORT_SYMBOL(acpi_bus_start);
static int
acpi_bus_trim(struct acpi_device *start,
/*
* Enumerate all fixed-feature devices.
*/
- if (acpi_fadt.pwr_button == 0)
- result = acpi_bus_add(&device, acpi_root,
+ if (acpi_fadt.pwr_button == 0) {
+ result = acpi_add_single_object(&device, acpi_root,
NULL, ACPI_BUS_TYPE_POWER_BUTTON);
+ if (!result)
+ result = acpi_start_single_object(device);
+ }
- if (acpi_fadt.sleep_button == 0)
- result = acpi_bus_add(&device, acpi_root,
+ if (acpi_fadt.sleep_button == 0) {
+ result = acpi_add_single_object(&device, acpi_root,
NULL, ACPI_BUS_TYPE_SLEEP_BUTTON);
+ if (!result)
+ result = acpi_start_single_object(device);
+ }
return_VALUE(result);
}
static int __init acpi_scan_init(void)
{
int result;
+ struct acpi_bus_ops ops;
ACPI_FUNCTION_TRACE("acpi_scan_init");
/*
* Create the root device in the bus's device tree
*/
- result = acpi_bus_add(&acpi_root, NULL, ACPI_ROOT_OBJECT,
+ result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT,
ACPI_BUS_TYPE_SYSTEM);
if (result)
goto Done;
+ result = acpi_start_single_object(acpi_root);
+
/*
* Enumerate devices in the ACPI namespace.
*/
result = acpi_bus_scan_fixed(acpi_root);
- if (!result)
- result = acpi_bus_scan(acpi_root);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ ops.acpi_op_start = 1;
+ result = acpi_bus_scan(acpi_root, &ops);
+ }
if (result)
acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
firmware_timeout_store(struct class *class, const char *buf, size_t count)
{
loading_timeout = simple_strtol(buf, NULL, 10);
+ if (loading_timeout < 0)
+ loading_timeout = 0;
return count;
}
switch (loading) {
case 1:
down(&fw_lock);
+ if (!fw_priv->fw) {
+ up(&fw_lock);
+ break;
+ }
vfree(fw_priv->fw->data);
fw_priv->fw->data = NULL;
fw_priv->fw->size = 0;
down(&fw_lock);
fw = fw_priv->fw;
- if (test_bit(FW_STATUS_DONE, &fw_priv->status)) {
+ if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
ret_count = -ENODEV;
goto out;
}
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
+
down(&fw_lock);
fw = fw_priv->fw;
- if (test_bit(FW_STATUS_DONE, &fw_priv->status)) {
+ if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
retval = -ENODEV;
goto out;
}
fw_priv = class_get_devdata(class_dev);
- if (loading_timeout) {
+ if (loading_timeout > 0) {
fw_priv->timeout.expires = jiffies + loading_timeout * HZ;
add_timer(&fw_priv->timeout);
}
case CCISS_GETLUNINFO: {
LogvolInfo_struct luninfo;
- int i;
luninfo.LunID = drv->LunID;
luninfo.num_opens = drv->usage_count;
#define blkdev_free_rq(list) list_entry((list)->next, struct request, queuelist)
/*
- * Get a free request, queue_lock must not be held
+ * Get a free request, queue_lock must be held.
+ * Returns NULL on failure, with queue_lock held.
+ * Returns !NULL on success, with queue_lock *not held*.
*/
static struct request *get_request(request_queue_t *q, int rw, struct bio *bio,
int gfp_mask)
{
struct request *rq = NULL;
struct request_list *rl = &q->rq;
- struct io_context *ioc = get_io_context(gfp_mask);
+ struct io_context *ioc = current_io_context(GFP_ATOMIC);
if (unlikely(test_bit(QUEUE_FLAG_DRAIN, &q->queue_flags)))
goto out;
- spin_lock_irq(q->queue_lock);
if (rl->count[rw]+1 >= q->nr_requests) {
/*
* The queue will fill after this allocation, so set it as
* The queue is full and the allocating process is not a
* "batcher", and not exempted by the IO scheduler
*/
- spin_unlock_irq(q->queue_lock);
goto out;
}
get_rq:
+ /*
+ * Only allow batching queuers to allocate up to 50% over the defined
+ * limit of requests, otherwise we could have thousands of requests
+ * allocated with any setting of ->nr_requests
+ */
+ if (rl->count[rw] >= (3 * q->nr_requests / 2)) {
+ spin_unlock_irq(q->queue_lock);
+ goto out;
+ }
rl->count[rw]++;
rl->starved[rw] = 0;
if (rl->count[rw] >= queue_congestion_on_threshold(q))
if (unlikely(rl->count[rw] == 0))
rl->starved[rw] = 1;
- spin_unlock_irq(q->queue_lock);
goto out;
}
rq_init(q, rq);
rq->rl = rl;
out:
- put_io_context(ioc);
return rq;
}
/*
* No available requests for this queue, unplug the device and wait for some
* requests to become available.
+ *
+ * Called with q->queue_lock held, and returns with it unlocked.
*/
static struct request *get_request_wait(request_queue_t *q, int rw,
struct bio *bio)
{
- DEFINE_WAIT(wait);
struct request *rq;
- do {
+ rq = get_request(q, rw, bio, GFP_NOIO);
+ while (!rq) {
+ DEFINE_WAIT(wait);
struct request_list *rl = &q->rq;
prepare_to_wait_exclusive(&rl->wait[rw], &wait,
if (!rq) {
struct io_context *ioc;
- generic_unplug_device(q);
+ __generic_unplug_device(q);
+ spin_unlock_irq(q->queue_lock);
io_schedule();
/*
* up to a big batch of them for a small period time.
* See ioc_batching, ioc_set_batching
*/
- ioc = get_io_context(GFP_NOIO);
+ ioc = current_io_context(GFP_NOIO);
ioc_set_batching(q, ioc);
- put_io_context(ioc);
+
+ spin_lock_irq(q->queue_lock);
}
finish_wait(&rl->wait[rw], &wait);
- } while (!rq);
+ }
return rq;
}
BUG_ON(rw != READ && rw != WRITE);
- if (gfp_mask & __GFP_WAIT)
+ spin_lock_irq(q->queue_lock);
+ if (gfp_mask & __GFP_WAIT) {
rq = get_request_wait(q, rw, NULL);
- else
+ } else {
rq = get_request(q, rw, NULL, gfp_mask);
+ if (!rq)
+ spin_unlock_irq(q->queue_lock);
+ }
+ /* q->queue_lock is unlocked at this point */
return rq;
}
-
EXPORT_SYMBOL(blk_get_request);
/**
static int __make_request(request_queue_t *q, struct bio *bio)
{
- struct request *req, *freereq = NULL;
+ struct request *req;
int el_ret, rw, nr_sectors, cur_nr_sectors, barrier, err, sync;
unsigned short prio;
sector_t sector;
goto end_io;
}
-again:
spin_lock_irq(q->queue_lock);
- if (elv_queue_empty(q)) {
- blk_plug_device(q);
- goto get_rq;
- }
- if (barrier)
+ if (unlikely(barrier) || elv_queue_empty(q))
goto get_rq;
el_ret = elv_merge(q, &req, bio);
elv_merged_request(q, req);
goto out;
- /*
- * elevator says don't/can't merge. get new request
- */
- case ELEVATOR_NO_MERGE:
- break;
-
+ /* ELV_NO_MERGE: elevator says don't/can't merge. */
default:
- printk("elevator returned crap (%d)\n", el_ret);
- BUG();
+ ;
}
+get_rq:
/*
- * Grab a free request from the freelist - if that is empty, check
- * if we are doing read ahead and abort instead of blocking for
- * a free slot.
+ * Grab a free request. This is might sleep but can not fail.
+ * Returns with the queue unlocked.
+ */
+ req = get_request_wait(q, rw, bio);
+
+ /*
+ * After dropping the lock and possibly sleeping here, our request
+ * may now be mergeable after it had proven unmergeable (above).
+ * We don't worry about that case for efficiency. It won't happen
+ * often, and the elevators are able to handle it.
*/
-get_rq:
- if (freereq) {
- req = freereq;
- freereq = NULL;
- } else {
- spin_unlock_irq(q->queue_lock);
- if ((freereq = get_request(q, rw, bio, GFP_ATOMIC)) == NULL) {
- /*
- * READA bit set
- */
- err = -EWOULDBLOCK;
- if (bio_rw_ahead(bio))
- goto end_io;
-
- freereq = get_request_wait(q, rw, bio);
- }
- goto again;
- }
req->flags |= REQ_CMD;
req->rq_disk = bio->bi_bdev->bd_disk;
req->start_time = jiffies;
+ spin_lock_irq(q->queue_lock);
+ if (elv_queue_empty(q))
+ blk_plug_device(q);
add_request(q, req);
out:
- if (freereq)
- __blk_put_request(q, freereq);
if (sync)
__generic_unplug_device(q);
/*
* If the current task has no IO context then create one and initialise it.
- * If it does have a context, take a ref on it.
+ * Otherwise, return its existing IO context.
*
- * This is always called in the context of the task which submitted the I/O.
- * But weird things happen, so we disable local interrupts to ensure exclusive
- * access to *current.
+ * This returned IO context doesn't have a specifically elevated refcount,
+ * but since the current task itself holds a reference, the context can be
+ * used in general code, so long as it stays within `current` context.
*/
-struct io_context *get_io_context(int gfp_flags)
+struct io_context *current_io_context(int gfp_flags)
{
struct task_struct *tsk = current;
- unsigned long flags;
struct io_context *ret;
- local_irq_save(flags);
ret = tsk->io_context;
- if (ret)
- goto out;
-
- local_irq_restore(flags);
+ if (likely(ret))
+ return ret;
ret = kmem_cache_alloc(iocontext_cachep, gfp_flags);
if (ret) {
ret->nr_batch_requests = 0; /* because this is 0 */
ret->aic = NULL;
ret->cic = NULL;
+ tsk->io_context = ret;
+ }
- local_irq_save(flags);
-
- /*
- * very unlikely, someone raced with us in setting up the task
- * io context. free new context and just grab a reference.
- */
- if (!tsk->io_context)
- tsk->io_context = ret;
- else {
- kmem_cache_free(iocontext_cachep, ret);
- ret = tsk->io_context;
- }
+ return ret;
+}
+EXPORT_SYMBOL(current_io_context);
-out:
+/*
+ * If the current task has no IO context then create one and initialise it.
+ * If it does have a context, take a ref on it.
+ *
+ * This is always called in the context of the task which submitted the I/O.
+ */
+struct io_context *get_io_context(int gfp_flags)
+{
+ struct io_context *ret;
+ ret = current_io_context(gfp_flags);
+ if (likely(ret))
atomic_inc(&ret->refcount);
- local_irq_restore(flags);
- }
-
return ret;
}
EXPORT_SYMBOL(get_io_context);
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+ /* SIS 760 */
+ {
+ .class = (PCI_CLASS_BRIDGE_HOST << 8),
+ .class_mask = ~0,
+ .vendor = PCI_VENDOR_ID_SI,
+ .device = PCI_DEVICE_ID_SI_760,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
{ }
};
long seqid;
int broadcast = 0;
- if (addr->channel > IPMI_NUM_CHANNELS) {
- spin_lock_irqsave(&intf->counter_lock, flags);
+ if (addr->channel >= IPMI_MAX_CHANNELS) {
+ spin_lock_irqsave(&intf->counter_lock, flags);
intf->sent_invalid_commands++;
spin_unlock_irqrestore(&intf->counter_lock, flags);
rv = -EINVAL;
int n = (sizeof(moxa_pcibrds) / sizeof(moxa_pcibrds[0])) - 1;
i = 0;
while (i < n) {
- while ((p = pci_find_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL)
+ while ((p = pci_get_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL)
{
if (pci_enable_device(p))
continue;
#ifdef CONFIG_PCI
/* First look for the JET devices: */
- while ((pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX,
+ while ((pdev = pci_get_device (PCI_VENDOR_ID_SPECIALIX,
PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8,
pdev))) {
if (pci_enable_device(pdev)) continue;
*/
/* Then look for the older RIO/PCI devices: */
- while ((pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX,
+ while ((pdev = pci_get_device (PCI_VENDOR_ID_SPECIALIX,
PCI_DEVICE_ID_SPECIALIX_RIO,
pdev))) {
if (pci_enable_device(pdev)) continue;
#include <linux/sysctl.h>
#include <linux/wait.h>
#include <linux/bcd.h>
+#include <linux/delay.h>
#include <asm/current.h>
#include <asm/uaccess.h>
struct proc_dir_entry *ent;
#if defined(__alpha__) || defined(__mips__)
unsigned int year, ctrl;
- unsigned long uip_watchdog;
char *guess = NULL;
#endif
#ifdef __sparc__
/* Each operating system on an Alpha uses its own epoch.
Let's try to guess which one we are using now. */
- uip_watchdog = jiffies;
if (rtc_is_updating() != 0)
- while (jiffies - uip_watchdog < 2*HZ/100) {
- barrier();
- cpu_relax();
- }
+ msleep(20);
spin_lock_irq(&rtc_lock);
year = CMOS_READ(RTC_YEAR);
void rtc_get_rtc_time(struct rtc_time *rtc_tm)
{
- unsigned long uip_watchdog = jiffies;
unsigned char ctrl;
#ifdef CONFIG_MACH_DECSTATION
unsigned int real_year;
/*
* read RTC once any update in progress is done. The update
- * can take just over 2ms. We wait 10 to 20ms. There is no need to
+ * can take just over 2ms. We wait 20ms. There is no need to
* to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
* If you need to know *exactly* when a second has started, enable
* periodic update complete interrupts, (via ioctl) and then
*/
if (rtc_is_updating() != 0)
- while (jiffies - uip_watchdog < 2*HZ/100) {
- barrier();
- cpu_relax();
- }
+ msleep(20);
/*
* Only the values that we read from the RTC are set. We leave
static int __init
tipar_setup(char *str)
{
- int ints[2];
+ int ints[3];
str = get_options(str, ARRAY_SIZE(ints), ints);
ld = tty_ldisc_ref(tty);
switch (arg) {
case TCIFLUSH:
- if (ld->flush_buffer)
+ if (ld && ld->flush_buffer)
ld->flush_buffer(tty);
break;
case TCIOFLUSH:
- if (ld->flush_buffer)
+ if (ld && ld->flush_buffer)
ld->flush_buffer(tty);
/* fall through */
case TCOFLUSH:
#include <linux/fs.h>
#include <linux/console.h>
#include <linux/signal.h>
+#include <linux/timex.h>
#include <asm/io.h>
#include <asm/uaccess.h>
if (!perm)
return -EPERM;
if (arg)
- arg = 1193182 / arg;
+ arg = CLOCK_TICK_RATE / arg;
kd_mksound(arg, 0);
return 0;
ticks = HZ * ((arg >> 16) & 0xffff) / 1000;
count = ticks ? (arg & 0xffff) : 0;
if (count)
- count = 1193182 / count;
+ count = CLOCK_TICK_RATE / count;
kd_mksound(count, ticks);
return 0;
}
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) {
wdt_disable();
} else {
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectdly - "
+ printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
"timer will not stop\n");
}
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) {
wdt_disable();
} else {
- printk(KERN_CRIT "WATCHDOG: Device closed unexpectdly - "
+ printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
"timer will not stop\n");
}
Array to held adapter information
-------------------------------------------------------------------------- */
static DESCRIPTOR HandleTable[NEW_MAX_DESCRIPTORS];
-dword Adapters = 0; /* Number of adapters */
+static dword Adapters = 0; /* Number of adapters */
/* --------------------------------------------------------------------------
Shadow IDI_DIMAINT
and 'shadow' debug stuff
/* function to read critical counter registers that */
/* may be udpated by the chip during read */
/******************************************************/
-static volatile u_char
+static u_char
Read_hfc8_stable(hfc4s8s_hw * hw, int reg)
{
u_char ref8;
return in8;
}
-static volatile int
+static int
Read_hfc16_stable(hfc4s8s_hw * hw, int reg)
{
int ref16;
/******************************************/
/* disable memory mapped ports / io ports */
/******************************************/
-void
+static void
release_pci_ports(hfc4s8s_hw * hw)
{
pci_write_config_word(hw->pdev, PCI_COMMAND, 0);
/*****************************************/
/* enable memory mapped ports / io ports */
/*****************************************/
-void
+static void
enable_pci_ports(hfc4s8s_hw * hw)
{
#ifdef CONFIG_HISAX_HFC4S8S_PCIMEM
static hycapi_appl hycapi_applications[CAPI_MAXAPPL];
+static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
+
static inline int _hycapi_appCheck(int app_id, int ctrl_no)
{
if((ctrl_no <= 0) || (ctrl_no > CAPI_MAXCONTR) || (app_id <= 0) ||
Kernel-Capi callback reset_ctr
******************************/
-void
+static void
hycapi_reset_ctr(struct capi_ctr *ctrl)
{
hycapictrl_info *cinfo = ctrl->driverdata;
Kernel-Capi callback remove_ctr
******************************/
-void
+static void
hycapi_remove_ctr(struct capi_ctr *ctrl)
{
int i;
The application is recorded in the internal list.
*************************************************************/
-void
+static void
hycapi_register_appl(struct capi_ctr *ctrl, __u16 appl,
capi_register_params *rp)
{
registration at controller-level
******************************************************************/
-void
+static void
hycapi_release_appl(struct capi_ctr *ctrl, __u16 appl)
{
int chk;
***************************************************************/
-u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
+static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
__u16 appl_id;
int _len, _len2;
*********************************************************************/
-int hycapi_read_proc(char *page, char **start, off_t off,
- int count, int *eof, struct capi_ctr *ctrl)
+static int hycapi_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, struct capi_ctr *ctrl)
{
hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
hysdn_card *card = cinfo->card;
**************************************************************/
-int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
+static int hycapi_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
{
#ifdef HYCAPI_PRINTFNAMES
printk(KERN_NOTICE "hycapi_load_firmware\n");
}
-char *hycapi_procinfo(struct capi_ctr *ctrl)
+static char *hycapi_procinfo(struct capi_ctr *ctrl)
{
hycapictrl_info *cinfo = (hycapictrl_info *)(ctrl->driverdata);
#ifdef HYCAPI_PRINTFNAMES
/* to be called at start of POF file reading, */
/* before starting any decryption on any POF record. */
/*****************************************************/
-void
+static void
StartDecryption(struct boot_data *boot)
{
boot->Cryptor = CRYPT_STARTTERM;
/* to HI and LO boot loader and (all) seq tags, because */
/* global Cryptor is started for whole POF. */
/***************************************************************/
-void
+static void
DecryptBuf(struct boot_data *boot, int cnt)
{
uchar *bufp = boot->buf.BootBuf;
/*****************/
/* exported vars */
/*****************/
-extern int cardmax; /* number of found cards */
extern hysdn_card *card_root; /* pointer to first card */
/* hysdn_proclog.c */
extern int hysdn_proclog_init(hysdn_card *); /* init proc log entry */
extern void hysdn_proclog_release(hysdn_card *); /* deinit proc log entry */
-extern void put_log_buffer(hysdn_card *, char *); /* output log data */
extern void hysdn_addlog(hysdn_card *, char *,...); /* output data to log */
extern void hysdn_card_errlog(hysdn_card *, tErrLogEntry *, int); /* output card log */
extern int hycapi_capi_create(hysdn_card *); /* create a new capi device */
extern int hycapi_capi_release(hysdn_card *); /* delete the device */
extern int hycapi_capi_stop(hysdn_card *card); /* suspend */
-extern int hycapi_load_firmware(struct capi_ctr *, capiloaddata *);
-extern void hycapi_reset_ctr(struct capi_ctr *);
-extern void hycapi_remove_ctr(struct capi_ctr *);
-extern void hycapi_register_appl(struct capi_ctr *, __u16 appl,
- capi_register_params *);
-extern void hycapi_release_appl(struct capi_ctr *, __u16 appl);
-extern u16 hycapi_send_message(struct capi_ctr *, struct sk_buff *skb);
-extern char *hycapi_procinfo(struct capi_ctr *);
-extern int hycapi_read_proc(char *page, char **start, off_t off,
- int count, int *eof, struct capi_ctr *card);
extern void hycapi_rx_capipkt(hysdn_card * card, uchar * buf, word len);
extern void hycapi_tx_capiack(hysdn_card * card);
extern struct sk_buff *hycapi_tx_capiget(hysdn_card *card);
MODULE_LICENSE("GPL");
static char *hysdn_init_revision = "$Revision: 1.6.6.6 $";
-int cardmax; /* number of found cards */
+static int cardmax; /* number of found cards */
hysdn_card *card_root = NULL; /* pointer to first card */
/**********************************************/
/* the proc subdir for the interface is defined in the procconf module */
extern struct proc_dir_entry *hysdn_proc_entry;
+static void put_log_buffer(hysdn_card * card, char *cp);
+
/*************************************************/
/* structure keeping ascii log for device output */
/*************************************************/
/* opened for read got the contents. */
/* Flushes buffers not longer in use. */
/********************************************/
-void
+static void
put_log_buffer(hysdn_card * card, char *cp)
{
struct log_data *ib;
if (atomic_dec_and_test(&rdev->mddev->pending_writes))
wake_up(&rdev->mddev->sb_wait);
+ bio_put(bio);
return 0;
}
zoran-objs := zr36120.o zr36120_i2c.o zr36120_mem.o
zr36067-objs := zoran_procfs.o zoran_device.o \
zoran_driver.o zoran_card.o
-tuner-objs := tuner-core.o tuner-simple.o mt20xx.o tda8290.o
-
+tuner-objs := tuner-core.o tuner-simple.o mt20xx.o tda8290.o tea5767.o
obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o
obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \
/*
- $Id: bttv-driver.c,v 1.38 2005/06/10 17:20:24 mchehab Exp $
+ $Id: bttv-driver.c,v 1.40 2005/06/16 21:38:45 nsh Exp $
bttv - Bt848 frame grabber driver
static unsigned int whitecrush_lower = 0x7F;
static unsigned int vcr_hack = 0;
static unsigned int irq_iswitch = 0;
+static unsigned int uv_ratio = 50;
+static unsigned int full_luma_range = 0;
+static unsigned int coring = 0;
/* API features (turn on/off stuff for testing) */
static unsigned int v4l2 = 1;
module_param(whitecrush_upper, int, 0444);
module_param(whitecrush_lower, int, 0444);
module_param(vcr_hack, int, 0444);
+module_param(uv_ratio, int, 0444);
+module_param(full_luma_range, int, 0444);
+module_param(coring, int, 0444);
module_param_array(radio, int, NULL, 0444);
MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
+MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
+MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
+MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
#define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
#define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
#define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
-#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 8)
+#define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
+#define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
+#define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
+#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
static const struct v4l2_queryctrl no_ctl = {
.name = "42",
.step = 1,
.default_value = 0x7F,
.type = V4L2_CTRL_TYPE_INTEGER,
+ },{
+ .id = V4L2_CID_PRIVATE_UV_RATIO,
+ .name = "uv ratio",
+ .minimum = 0,
+ .maximum = 100,
+ .step = 1,
+ .default_value = 50,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },{
+ .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
+ .name = "full luma range",
+ .minimum = 0,
+ .maximum = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ },{
+ .id = V4L2_CID_PRIVATE_CORING,
+ .name = "coring",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+ .default_value = 0,
+ .type = V4L2_CTRL_TYPE_INTEGER,
}
+
+
};
static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
btv->saturation = color;
/* 0-511 for the color */
- val_u = color >> 7;
- val_v = ((color>>7)*180L)/254;
+ val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
+ val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
hibits = (val_u >> 7) & 2;
hibits |= (val_v >> 8) & 1;
btwrite(val_u & 0xff, BT848_SAT_U_LO);
case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
c->value = btv->opt_whitecrush_lower;
break;
+ case V4L2_CID_PRIVATE_UV_RATIO:
+ c->value = btv->opt_uv_ratio;
+ break;
+ case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
+ c->value = btv->opt_full_luma_range;
+ break;
+ case V4L2_CID_PRIVATE_CORING:
+ c->value = btv->opt_coring;
+ break;
default:
return -EINVAL;
}
btv->opt_whitecrush_lower = c->value;
btwrite(c->value, BT848_WC_DOWN);
break;
+ case V4L2_CID_PRIVATE_UV_RATIO:
+ btv->opt_uv_ratio = c->value;
+ bt848_sat(btv, btv->saturation);
+ break;
+ case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
+ btv->opt_full_luma_range = c->value;
+ btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
+ break;
+ case V4L2_CID_PRIVATE_CORING:
+ btv->opt_coring = c->value;
+ btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
+ break;
default:
return -EINVAL;
}
return -EINVAL;
memset(v,0,sizeof(*v));
strcpy(v->name, "Radio");
- /* japan: 76.0 MHz - 89.9 MHz
- western europe: 87.5 MHz - 108.0 MHz
- russia: 65.0 MHz - 108.0 MHz */
- v->rangelow=(int)(65*16);
- v->rangehigh=(int)(108*16);
bttv_call_i2c_clients(btv,cmd,v);
return 0;
}
btv->opt_vcr_hack = vcr_hack;
btv->opt_whitecrush_upper = whitecrush_upper;
btv->opt_whitecrush_lower = whitecrush_lower;
+ btv->opt_uv_ratio = uv_ratio;
+ btv->opt_full_luma_range = full_luma_range;
+ btv->opt_coring = coring;
/* fill struct bttv with some useful defaults */
btv->init.btv = btv;
/*
- $Id: bttvp.h,v 1.17 2005/02/16 12:14:10 kraxel Exp $
+ $Id: bttvp.h,v 1.19 2005/06/16 21:38:45 nsh Exp $
bttv - Bt848 frame grabber driver
int opt_vcr_hack;
int opt_whitecrush_upper;
int opt_whitecrush_lower;
+ int opt_uv_ratio;
+ int opt_full_luma_range;
+ int opt_coring;
/* radio data/state */
int has_radio;
/*
- * $Id: mt20xx.c,v 1.4 2005/03/04 09:24:56 kraxel Exp $
+ * $Id: mt20xx.c,v 1.5 2005/06/16 08:29:49 nsh Exp $
*
* i2c tv tuner chip device driver
* controls microtune tuners, mt2032 + mt2050 at the moment.
int if2 = t->radio_if2;
// per Manual for FM tuning: first if center freq. 1085 MHz
- mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
- 1085*1000*1000,if2,if2,if2);
+ mt2032_set_if_freq(c, freq * 1000 / 16,
+ 1085*1000*1000,if2,if2,if2);
}
// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
/*
- * $Id: tda8290.c,v 1.7 2005/03/07 12:01:51 kraxel Exp $
+ * $Id: tda8290.c,v 1.11 2005/06/18 06:09:06 nsh Exp $
*
* i2c tv tuner chip device driver
* controls the philips tda8290+75 tuner chip combo.
static unsigned char i2c_enable_bridge[2] = { 0x21, 0xC0 };
static unsigned char i2c_disable_bridge[2] = { 0x21, 0x80 };
static unsigned char i2c_init_tda8275[14] = { 0x00, 0x00, 0x00, 0x00,
- 0x7C, 0x04, 0xA3, 0x3F,
+ 0xfC, 0x04, 0xA3, 0x3F,
0x2A, 0x04, 0xFF, 0x00,
0x00, 0x40 };
static unsigned char i2c_set_VS[2] = { 0x30, 0x6F };
static void set_frequency(struct tuner *t, u16 ifc)
{
- u32 N = (((t->freq<<3)+ifc)&0x3fffc);
+ u32 freq;
+ u32 N;
- N = N >> get_freq_entry(div_table, t->freq);
+ if (t->mode == V4L2_TUNER_RADIO)
+ freq = t->freq / 1000;
+ else
+ freq = t->freq;
+
+ N = (((freq<<3)+ifc)&0x3fffc);
+
+ N = N >> get_freq_entry(div_table, freq);
t->i2c_set_freq[0] = 0;
t->i2c_set_freq[1] = (unsigned char)(N>>8);
t->i2c_set_freq[2] = (unsigned char) N;
t->i2c_set_freq[3] = 0x40;
t->i2c_set_freq[4] = 0x52;
- t->i2c_set_freq[5] = get_freq_entry(band_table, t->freq);
- t->i2c_set_freq[6] = get_freq_entry(agc_table, t->freq);
+ t->i2c_set_freq[5] = get_freq_entry(band_table, freq);
+ t->i2c_set_freq[6] = get_freq_entry(agc_table, freq);
t->i2c_set_freq[7] = 0x8f;
}
if (t->radio_mode == V4L2_TUNER_MODE_MONO)
norm = &radio_mono;
else
- norm = &radio_stereo;
+ norm = &radio_stereo;
} else {
for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
if (tvnorms[i].std & t->std) {
if (UNSET != t->pinnacle_id) {
tda9887_set_pinnacle(t,buf);
}
-
tda9887_set_config(t,buf);
tda9887_set_insmod(t,buf);
t->pinnacle_id = UNSET;
t->radio_mode = V4L2_TUNER_MODE_STEREO;
- i2c_set_clientdata(&t->client, t);
- i2c_attach_client(&t->client);
+ i2c_set_clientdata(&t->client, t);
+ i2c_attach_client(&t->client);
return 0;
}
--- /dev/null
+/*
+ * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
+ * I2C address is allways 0xC0.
+ *
+ * $Id: tea5767.c,v 1.11 2005/06/21 15:40:33 mchehab Exp $
+ *
+ * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br)
+ * This code is placed under the terms of the GNU General Public License
+ *
+ * tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa
+ * from their contributions on DScaler.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/videodev.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+#include <media/tuner.h>
+
+/* Declared at tuner-core.c */
+extern unsigned int tuner_debug;
+
+#define PREFIX "TEA5767 "
+
+/*****************************************************************************/
+
+/******************************
+ * Write mode register values *
+ ******************************/
+
+/* First register */
+#define TEA5767_MUTE 0x80 /* Mutes output */
+#define TEA5767_SEARCH 0x40 /* Activates station search */
+/* Bits 0-5 for divider MSB */
+
+/* Second register */
+/* Bits 0-7 for divider LSB */
+
+/* Third register */
+
+/* Station search from botton to up */
+#define TEA5767_SEARCH_UP 0x80
+
+/* Searches with ADC output = 10 */
+#define TEA5767_SRCH_HIGH_LVL 0x60
+
+/* Searches with ADC output = 10 */
+#define TEA5767_SRCH_MID_LVL 0x40
+
+/* Searches with ADC output = 5 */
+#define TEA5767_SRCH_LOW_LVL 0x20
+
+/* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */
+#define TEA5767_HIGH_LO_INJECT 0x10
+
+/* Disable stereo */
+#define TEA5767_MONO 0x08
+
+/* Disable right channel and turns to mono */
+#define TEA5767_MUTE_RIGHT 0x04
+
+/* Disable left channel and turns to mono */
+#define TEA5767_MUTE_LEFT 0x02
+
+#define TEA5767_PORT1_HIGH 0x01
+
+/* Forth register */
+#define TEA5767_PORT2_HIGH 0x80
+/* Chips stops working. Only I2C bus remains on */
+#define TEA5767_STDBY 0x40
+
+/* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */
+#define TEA5767_JAPAN_BAND 0x20
+
+/* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */
+#define TEA5767_XTAL_32768 0x10
+
+/* Cuts weak signals */
+#define TEA5767_SOFT_MUTE 0x08
+
+/* Activates high cut control */
+#define TEA5767_HIGH_CUT_CTRL 0x04
+
+/* Activates stereo noise control */
+#define TEA5767_ST_NOISE_CTL 0x02
+
+/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */
+#define TEA5767_SRCH_IND 0x01
+
+/* Fiveth register */
+
+/* By activating, it will use Xtal at 13 MHz as reference for divider */
+#define TEA5767_PLLREF_ENABLE 0x80
+
+/* By activating, deemphasis=50, or else, deemphasis of 50us */
+#define TEA5767_DEEMPH_75 0X40
+
+/*****************************
+ * Read mode register values *
+ *****************************/
+
+/* First register */
+#define TEA5767_READY_FLAG_MASK 0x80
+#define TEA5767_BAND_LIMIT_MASK 0X40
+/* Bits 0-5 for divider MSB after search or preset */
+
+/* Second register */
+/* Bits 0-7 for divider LSB after search or preset */
+
+/* Third register */
+#define TEA5767_STEREO_MASK 0x80
+#define TEA5767_IF_CNTR_MASK 0x7f
+
+/* Four register */
+#define TEA5767_ADC_LEVEL_MASK 0xf0
+
+/* should be 0 */
+#define TEA5767_CHIP_ID_MASK 0x0f
+
+/* Fiveth register */
+/* Reserved for future extensions */
+#define TEA5767_RESERVED_MASK 0xff
+
+/*****************************************************************************/
+
+static void set_tv_freq(struct i2c_client *c, unsigned int freq)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+
+ tuner_warn("This tuner doesn't support TV freq.\n");
+}
+
+static void tea5767_status_dump(unsigned char *buffer)
+{
+ unsigned int div, frq;
+
+ if (TEA5767_READY_FLAG_MASK & buffer[0])
+ printk(PREFIX "Ready Flag ON\n");
+ else
+ printk(PREFIX "Ready Flag OFF\n");
+
+ if (TEA5767_BAND_LIMIT_MASK & buffer[0])
+ printk(PREFIX "Tuner at band limit\n");
+ else
+ printk(PREFIX "Tuner not at band limit\n");
+
+ div=((buffer[0]&0x3f)<<8) | buffer[1];
+
+ switch (TEA5767_HIGH_LO_32768) {
+ case TEA5767_HIGH_LO_13MHz:
+ frq = 1000*(div*50-700-225)/4; /* Freq in KHz */
+ break;
+ case TEA5767_LOW_LO_13MHz:
+ frq = 1000*(div*50+700+225)/4; /* Freq in KHz */
+ break;
+ case TEA5767_LOW_LO_32768:
+ frq = 1000*(div*32768/1000+700+225)/4; /* Freq in KHz */
+ break;
+ case TEA5767_HIGH_LO_32768:
+ default:
+ frq = 1000*(div*32768/1000-700-225)/4; /* Freq in KHz */
+ break;
+ }
+ buffer[0] = (div>>8) & 0x3f;
+ buffer[1] = div & 0xff;
+
+ printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n",
+ frq/1000,frq%1000,div);
+
+ if (TEA5767_STEREO_MASK & buffer[2])
+ printk(PREFIX "Stereo\n");
+ else
+ printk(PREFIX "Mono\n");
+
+ printk(PREFIX "IF Counter = %d\n",buffer[2] & TEA5767_IF_CNTR_MASK);
+
+ printk(PREFIX "ADC Level = %d\n",(buffer[3] & TEA5767_ADC_LEVEL_MASK)>>4);
+
+ printk(PREFIX "Chip ID = %d\n",(buffer[3] & TEA5767_CHIP_ID_MASK));
+
+ printk(PREFIX "Reserved = 0x%02x\n",(buffer[4] & TEA5767_RESERVED_MASK));
+}
+
+/* Freq should be specifyed at 62.5 Hz */
+static void set_radio_freq(struct i2c_client *c, unsigned int frq)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+ unsigned char buffer[5];
+ unsigned div;
+ int rc;
+
+ if ( tuner_debug )
+ printk(PREFIX "radio freq counter %d\n",frq);
+
+ /* Rounds freq to next decimal value - for 62.5 KHz step */
+ /* frq = 20*(frq/16)+radio_frq[frq%16]; */
+
+ buffer[2] = TEA5767_PORT1_HIGH;
+ buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL | TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
+ buffer[4]=0;
+
+ if (t->audmode == V4L2_TUNER_MODE_MONO) {
+ tuner_dbg("TEA5767 set to mono\n");
+ buffer[2] |= TEA5767_MONO;
+ } else
+ tuner_dbg("TEA5767 set to stereo\n");
+
+ switch (t->type) {
+ case TEA5767_HIGH_LO_13MHz:
+ tuner_dbg("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n");
+ buffer[2] |= TEA5767_HIGH_LO_INJECT;
+ buffer[4] |= TEA5767_PLLREF_ENABLE;
+ div = (frq*4/16+700+225+25)/50;
+ break;
+ case TEA5767_LOW_LO_13MHz:
+ tuner_dbg("TEA5767 radio LOW LO inject xtal @ 13 MHz\n");
+
+ buffer[4] |= TEA5767_PLLREF_ENABLE;
+ div = (frq*4/16-700-225+25)/50;
+ break;
+ case TEA5767_LOW_LO_32768:
+ tuner_dbg("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n");
+ buffer[3] |= TEA5767_XTAL_32768;
+ /* const 700=4000*175 Khz - to adjust freq to right value */
+ div = (1000*(frq*4/16-700-225)+16384)>>15;
+ break;
+ case TEA5767_HIGH_LO_32768:
+ default:
+ tuner_dbg("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n");
+
+ buffer[2] |= TEA5767_HIGH_LO_INJECT;
+ buffer[3] |= TEA5767_XTAL_32768;
+ div = (1000*(frq*4/16+700+225)+16384)>>15;
+ break;
+ }
+ buffer[0] = (div>>8) & 0x3f;
+ buffer[1] = div & 0xff;
+
+ if ( tuner_debug )
+ tea5767_status_dump(buffer);
+
+ if (5 != (rc = i2c_master_send(c,buffer,5)))
+ tuner_warn("i2c i/o error: rc == %d (should be 5)\n",rc);
+}
+
+static int tea5767_signal(struct i2c_client *c)
+{
+ unsigned char buffer[5];
+ int rc;
+ struct tuner *t = i2c_get_clientdata(c);
+
+ memset(buffer,0,sizeof(buffer));
+ if (5 != (rc = i2c_master_recv(c,buffer,5)))
+ tuner_warn ( "i2c i/o error: rc == %d (should be 5)\n",rc);
+
+ return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) <<(13-4));
+}
+
+static int tea5767_stereo(struct i2c_client *c)
+{
+ unsigned char buffer[5];
+ int rc;
+ struct tuner *t = i2c_get_clientdata(c);
+
+ memset(buffer,0,sizeof(buffer));
+ if (5 != (rc = i2c_master_recv(c,buffer,5)))
+ tuner_warn ( "i2c i/o error: rc == %d (should be 5)\n",rc);
+
+ rc = buffer[2] & TEA5767_STEREO_MASK;
+
+ if ( tuner_debug )
+ tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
+
+ return ( (buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO: 0);
+}
+
+int tea_detection(struct i2c_client *c)
+{
+ unsigned char buffer[5]= { 0xff, 0xff, 0xff, 0xff, 0xff };
+ int rc;
+ struct tuner *t = i2c_get_clientdata(c);
+
+ if (5 != (rc = i2c_master_recv(c,buffer,5))) {
+ tuner_warn ( "it is not a TEA5767. Received %i chars.\n",rc );
+ return EINVAL;
+ }
+
+ /* If all bytes are the same then it's a TV tuner and not a tea5767 chip. */
+ if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
+ buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
+ tuner_warn ( "All bytes are equal. It is not a TEA5767\n" );
+ return EINVAL;
+ }
+
+ /* Status bytes:
+ * Byte 4: bit 3:1 : CI (Chip Identification) == 0
+ * bit 0 : internally set to 0
+ * Byte 5: bit 7:0 : == 0
+ */
+
+ if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) {
+ tuner_warn ( "Chip ID is not zero. It is not a TEA5767\n" );
+ return EINVAL;
+ }
+ tuner_warn ( "TEA5767 detected.\n" );
+ return 0;
+}
+
+int tea5767_tuner_init(struct i2c_client *c)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+
+ if (tea_detection(c)==EINVAL) return EINVAL;
+
+ tuner_info("type set to %d (%s)\n",
+ t->type, TEA5767_TUNER_NAME);
+ strlcpy(c->name, TEA5767_TUNER_NAME, sizeof(c->name));
+
+ t->tv_freq = set_tv_freq;
+ t->radio_freq = set_radio_freq;
+ t->has_signal = tea5767_signal;
+ t->is_stereo = tea5767_stereo;
+
+ return (0);
+}
/*
- * $Id: tuner-core.c,v 1.15 2005/06/12 01:36:14 mchehab Exp $
+ * $Id: tuner-core.c,v 1.29 2005/06/21 15:40:33 mchehab Exp $
*
* i2c tv tuner chip device driver
* core core, i.e. kernel interfaces, registering and so on
/*
* comment line bellow to return to old behavor, where only one I2C device is supported
*/
-#define CONFIG_TUNER_MULTI_I2C /**/
#define UNSET (-1U)
MODULE_LICENSE("GPL");
static int this_adap;
-#ifdef CONFIG_TUNER_MULTI_I2C
static unsigned short first_tuner, tv_tuner, radio_tuner;
-#endif
static struct i2c_driver driver;
static struct i2c_client client_template;
return;
}
if (freq < tv_range[0]*16 || freq > tv_range[1]*16) {
-
- if (freq >= tv_range[0]*16364 && freq <= tv_range[1]*16384) {
- /* V4L2_TUNER_CAP_LOW frequency */
-
- tuner_dbg("V4L2_TUNER_CAP_LOW freq selected for TV. Tuners yet doesn't support converting it to valid freq.\n");
-
- t->tv_freq(c,freq>>10);
-
- return;
- } else {
- /* FIXME: better do that chip-specific, but
- right now we don't have that in the config
- struct and this way is still better than no
- check at all */
tuner_info("TV freq (%d.%02d) out of range (%d-%d)\n",
freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
- return;
- }
}
- tuner_dbg("62.5 Khz freq step selected for TV.\n");
t->tv_freq(c,freq);
}
tuner_info("no radio tuning for this one, sorry.\n");
return;
}
- if (freq < radio_range[0]*16 || freq > radio_range[1]*16) {
- if (freq >= tv_range[0]*16364 && freq <= tv_range[1]*16384) {
- /* V4L2_TUNER_CAP_LOW frequency */
- if (t->type == TUNER_TEA5767) {
- tuner_info("radio freq step 62.5Hz (%d.%06d)\n",(freq>>14),freq%(1<<14)*10000);
- t->radio_freq(c,freq>>10);
- return;
- }
-
- tuner_dbg("V4L2_TUNER_CAP_LOW freq selected for Radio. Tuners yet doesn't support converting it to valid freq.\n");
-
- tuner_info("radio freq (%d.%06d)\n",(freq>>14),freq%(1<<14)*10000);
-
- t->radio_freq(c,freq>>10);
- return;
-
- } else {
- tuner_info("radio freq (%d.%02d) out of range (%d-%d)\n",
- freq/16,freq%16*100/16,
- radio_range[0],radio_range[1]);
- return;
- }
+ if (freq >= radio_range[0]*16000 && freq <= radio_range[1]*16000) {
+ if (tuner_debug)
+ tuner_info("radio freq step 62.5Hz (%d.%06d)\n",
+ freq/16000,freq%16000*1000/16);
+ t->radio_freq(c,freq);
+ } else {
+ tuner_info("radio freq (%d.%02d) out of range (%d-%d)\n",
+ freq/16,freq%16*100/16,
+ radio_range[0],radio_range[1]);
}
- tuner_dbg("62.5 Khz freq step selected for Radio.\n");
- t->radio_freq(c,freq);
+
+ return;
}
static void set_freq(struct i2c_client *c, unsigned long freq)
static void set_type(struct i2c_client *c, unsigned int type)
{
struct tuner *t = i2c_get_clientdata(c);
+ unsigned char buffer[4];
- tuner_dbg ("I2C addr 0x%02x with type %d\n",c->addr<<1,type);
/* sanity check */
if (type == UNSET || type == TUNER_ABSENT)
return;
t->type = type;
return;
}
- if (t->initialized)
- /* run only once */
+ if ((t->initialized) && (t->type == type))
+ /* run only once except type change Hac 04/05*/
return;
t->initialized = 1;
case TUNER_PHILIPS_TDA8290:
tda8290_init(c);
break;
+ case TUNER_TEA5767:
+ if (tea5767_tuner_init(c)==EINVAL) t->type=TUNER_ABSENT;
+ break;
+ case TUNER_PHILIPS_FMD1216ME_MK3:
+ buffer[0] = 0x0b;
+ buffer[1] = 0xdc;
+ buffer[2] = 0x9c;
+ buffer[3] = 0x60;
+ i2c_master_send(c,buffer,4);
+ mdelay(1);
+ buffer[2] = 0x86;
+ buffer[3] = 0x54;
+ i2c_master_send(c,buffer,4);
+ default_tuner_init(c);
+ break;
default:
+ /* TEA5767 autodetection code */
+ if (tea5767_tuner_init(c)!=EINVAL) {
+ t->type = TUNER_TEA5767;
+ if (first_tuner == 0x60)
+ first_tuner++;
+ break;
+ }
+
default_tuner_init(c);
break;
}
+ tuner_dbg ("I2C addr 0x%02x with type %d\n",c->addr<<1,type);
}
-#ifdef CONFIG_TUNER_MULTI_I2C
#define CHECK_ADDR(tp,cmd,tun) if (client->addr!=tp) { \
- return 0; } else \
+ return 0; } else if (tuner_debug) \
tuner_info ("Cmd %s accepted to "tun"\n",cmd);
#define CHECK_MODE(cmd) if (t->mode == V4L2_TUNER_RADIO) { \
CHECK_ADDR(radio_tuner,cmd,"radio") } else \
{ CHECK_ADDR(tv_tuner,cmd,"TV"); }
-#else
-#define CHECK_ADDR(tp,cmd,tun) tuner_info ("Cmd %s accepted to "tun"\n",cmd);
-#define CHECK_MODE(cmd) tuner_info ("Cmd %s accepted\n",cmd);
-#endif
-
-#ifdef CONFIG_TUNER_MULTI_I2C
static void set_addr(struct i2c_client *c, struct tuner_addr *tun_addr)
{
}
set_type(c,tun_addr->type);
}
-#else
-#define set_addr(c,tun_addr) set_type(c,(tun_addr)->type)
-#endif
static char pal[] = "-";
module_param_string(pal, pal, sizeof(pal), 0644);
{
struct tuner *t;
-#ifndef CONFIG_TUNER_MULTI_I2C
- if (this_adap > 0)
- return -1;
-#else
/* by default, first I2C card is both tv and radio tuner */
if (this_adap == 0) {
first_tuner = addr;
tv_tuner = addr;
radio_tuner = addr;
}
-#endif
this_adap++;
client_template.adapter = adap;
i2c_set_clientdata(&t->i2c, t);
t->type = UNSET;
t->radio_if2 = 10700*1000; /* 10.7MHz - FM radio */
+ t->audmode = V4L2_TUNER_MODE_STEREO;
i2c_attach_client(&t->i2c);
tuner_info("chip found @ 0x%x (%s)\n",
}
this_adap = 0;
-#ifdef CONFIG_TUNER_MULTI_I2C
first_tuner = 0;
tv_tuner = 0;
radio_tuner = 0;
-#endif
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, tuner_attach);
t->radio_if2 = 41300 * 1000;
break;
}
- break;
-
+ break;
/* --- v4l ioctls --- */
/* take care: bttv does userspace copying, we'll get a
kernel pointer here... */
vt->signal = t->has_signal(client);
if (t->is_stereo) {
if (t->is_stereo(client))
- vt-> flags |= VIDEO_TUNER_STEREO_ON;
+ vt->flags |= VIDEO_TUNER_STEREO_ON;
else
- vt-> flags &= 0xffff ^ VIDEO_TUNER_STEREO_ON;
+ vt->flags &= ~VIDEO_TUNER_STEREO_ON;
}
vt->flags |= V4L2_TUNER_CAP_LOW; /* Allow freqs at 62.5 Hz */
+
+ vt->rangelow = radio_range[0] * 16000;
+ vt->rangehigh = radio_range[1] * 16000;
+
+ } else {
+ vt->rangelow = tv_range[0] * 16;
+ vt->rangehigh = tv_range[1] * 16;
}
return 0;
tuner -> signal = t->has_signal(client);
if (t->is_stereo) {
if (t->is_stereo(client)) {
- tuner -> capability |= V4L2_TUNER_CAP_STEREO;
- tuner -> rxsubchans |= V4L2_TUNER_SUB_STEREO;
+ tuner -> rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
} else {
- tuner -> rxsubchans &= 0xffff ^ V4L2_TUNER_SUB_STEREO;
+ tuner -> rxsubchans = V4L2_TUNER_SUB_MONO;
}
}
+ tuner->capability |= V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
+ tuner->audmode = t->audmode;
+
+ tuner->rangelow = radio_range[0] * 16000;
+ tuner->rangehigh = radio_range[1] * 16000;
+ } else {
+ tuner->rangelow = tv_range[0] * 16;
+ tuner->rangehigh = tv_range[1] * 16;
}
- /* Wow to deal with V4L2_TUNER_CAP_LOW ? For now, it accepts from low at 62.5KHz step to high at 62.5 Hz */
- tuner->rangelow = tv_range[0] * 16;
-// tuner->rangehigh = tv_range[1] * 16;
-// tuner->rangelow = tv_range[0] * 16384;
- tuner->rangehigh = tv_range[1] * 16384;
break;
}
+ case VIDIOC_S_TUNER: /* Allow changing radio range and audio mode */
+ {
+ struct v4l2_tuner *tuner = arg;
+
+ CHECK_ADDR(radio_tuner,"VIDIOC_S_TUNER","radio");
+ SWITCH_V4L2;
+
+ /* To switch the audio mode, applications initialize the
+ index and audmode fields and the reserved array and
+ call the VIDIOC_S_TUNER ioctl. */
+ /* rxsubchannels: V4L2_TUNER_MODE_MONO, V4L2_TUNER_MODE_STEREO,
+ V4L2_TUNER_MODE_LANG1, V4L2_TUNER_MODE_LANG2,
+ V4L2_TUNER_MODE_SAP */
+
+ if (tuner->audmode == V4L2_TUNER_MODE_MONO)
+ t->audmode = V4L2_TUNER_MODE_MONO;
+ else
+ t->audmode = V4L2_TUNER_MODE_STEREO;
+
+ set_radio_freq(client, t->freq);
+ break;
+ }
+ case TDA9887_SET_CONFIG: /* Nothing to do on tuner-core */
+ break;
default:
tuner_dbg ("Unimplemented IOCTL 0x%08x called to tuner.\n", cmd);
/* nothing */
/*
- * $Id: tuner-simple.c,v 1.21 2005/06/10 19:53:26 nsh Exp $
+ * $Id: tuner-simple.c,v 1.31 2005/06/21 16:02:25 mkrufky Exp $
*
* i2c tv tuner chip device driver
* controls all those simple 4-control-bytes style tuners.
{ "LG PAL (TAPE series)", LGINNOTEK, PAL,
16*170.00, 16*450.00, 0x01,0x02,0x08,0xce,623},
- { "Philips PAL/SECAM multi (FQ1216AME MK4)", Philips, PAL,
- 16*160.00,16*442.00,0x01,0x02,0x04,0xce,623 },
- { "Philips FQ1236A MK4", Philips, NTSC,
- 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
+ { "Philips PAL/SECAM multi (FQ1216AME MK4)", Philips, PAL,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0xce,623 },
+ { "Philips FQ1236A MK4", Philips, NTSC,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
/* Should work for TVF8531MF, TVF8831MF, TVF8731MF */
{ "Ymec TVision TVF-8531MF", Philips, NTSC,
16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
{ "Ymec TVision TVF-5533MF", Philips, NTSC,
16*160.00,16*454.00,0x01,0x02,0x04,0x8e,732},
-
{ "Thomson DDT 7611 (ATSC/NTSC)", THOMSON, ATSC,
16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
- { "Tena TNF9533-D/IF", LGINNOTEK, PAL,
- 16*160.25, 16*464.25, 0x01,0x02,0x08,0x8e,623},
+ /* Should work for TNF9533-D/IF, TNF9533-B/DF */
+ { "Tena TNF9533-D/IF", Philips, PAL,
+ 16*160.25,16*464.25,0x01,0x02,0x04,0x8e,623},
- /*
- * This entry is for TEA5767 FM radio only chip used on several boards
- * w/TV tuner
- */
+ /* This entry is for TEA5767 FM radio only chip used on several boards w/TV tuner */
{ TEA5767_TUNER_NAME, Philips, RADIO,
- -1, -1, 0, 0, 0, TEA5767_LOW_LO_32768,0},
+ -1, -1, 0, 0, 0, TEA5767_LOW_LO_32768,0},
+ { "Philips FMD1216ME MK3 Hybrid Tuner", Philips, PAL,
+ 16*160.00,16*442.00,0x51,0x52,0x54,0x86,623 },
};
unsigned const int tuner_count = ARRAY_SIZE(tuners);
int rc;
tun=&tuners[t->type];
- div = freq + (int)(16*10.7);
+ div = (freq / 1000) + (int)(16*10.7);
buffer[2] = tun->config;
switch (t->type) {
case TUNER_TENA_9533_DI:
case TUNER_YMEC_TVF_5533MF:
-
/*These values are empirically determinated */
- div = (freq*122)/16 - 20;
+ div = (freq * 122) / 16000 - 20;
buffer[2] = 0x88; /* could be also 0x80 */
buffer[3] = 0x19; /* could be also 0x10, 0x18, 0x99 */
break;
case TUNER_PHILIPS_FM1216ME_MK3:
case TUNER_PHILIPS_FM1236_MK3:
+ case TUNER_PHILIPS_FMD1216ME_MK3:
buffer[3] = 0x19;
break;
case TUNER_PHILIPS_FM1256_IH3:
- div = (20 * freq)/16 + 333 * 2;
+ div = (20 * freq) / 16000 + 333 * 2;
buffer[2] = 0x80;
buffer[3] = 0x19;
break;
t->radio_freq = default_set_radio_freq;
t->has_signal = tuner_signal;
t->is_stereo = tuner_stereo;
+
return 0;
}
.id_table = mptfc_pci_table,
.probe = mptfc_probe,
.remove = __devexit_p(mptscsih_remove),
- .driver = {
- .shutdown = mptscsih_shutdown,
- },
+ .shutdown = mptscsih_shutdown,
#ifdef CONFIG_PM
.suspend = mptscsih_suspend,
.resume = mptscsih_resume,
#endif
void mptscsih_remove(struct pci_dev *);
-void mptscsih_shutdown(struct device *);
+void mptscsih_shutdown(struct pci_dev *);
#ifdef CONFIG_PM
int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
int mptscsih_resume(struct pci_dev *pdev);
#endif
#endif
- mptscsih_shutdown(&pdev->dev);
+ mptscsih_shutdown(pdev);
sz1=0;
*
*/
void
-mptscsih_shutdown(struct device * dev)
+mptscsih_shutdown(struct pci_dev *pdev)
{
- MPT_ADAPTER *ioc = pci_get_drvdata(to_pci_dev(dev));
+ MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
struct Scsi_Host *host = ioc->sh;
MPT_SCSI_HOST *hd;
int
mptscsih_suspend(struct pci_dev *pdev, pm_message_t state)
{
- mptscsih_shutdown(&pdev->dev);
+ mptscsih_shutdown(pdev);
return mpt_suspend(pdev,state);
}
#endif
extern void mptscsih_remove(struct pci_dev *);
-extern void mptscsih_shutdown(struct device *);
+extern void mptscsih_shutdown(struct pci_dev *);
#ifdef CONFIG_PM
extern int mptscsih_suspend(struct pci_dev *pdev, u32 state);
extern int mptscsih_resume(struct pci_dev *pdev);
.id_table = mptspi_pci_table,
.probe = mptspi_probe,
.remove = __devexit_p(mptscsih_remove),
- .driver = {
- .shutdown = mptscsih_shutdown,
- },
+ .shutdown = mptscsih_shutdown,
#ifdef CONFIG_PM
.suspend = mptscsih_suspend,
.resume = mptscsih_resume,
#endif
-static void e100_shutdown(struct device *dev)
+static void e100_shutdown(struct pci_dev *pdev)
{
- struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
struct net_device *netdev = pci_get_drvdata(pdev);
struct nic *nic = netdev_priv(netdev);
.suspend = e100_suspend,
.resume = e100_resume,
#endif
-
- .driver = {
- .shutdown = e100_shutdown,
- }
-
+ .shutdown = e100_shutdown,
};
static int __init e100_init_module(void)
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static struct ethtool_ops netdev_ethtool_ops;
static int rhine_close(struct net_device *dev);
-static void rhine_shutdown (struct device *gdev);
+static void rhine_shutdown (struct pci_dev *pdev);
#define RHINE_WAIT_FOR(condition) do { \
int i=1024; \
pci_set_drvdata(pdev, NULL);
}
-static void rhine_shutdown (struct device *gendev)
+static void rhine_shutdown (struct pci_dev *pdev)
{
- struct pci_dev *pdev = to_pci_dev(gendev);
struct net_device *dev = pci_get_drvdata(pdev);
struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
pci_save_state(pdev);
spin_lock_irqsave(&rp->lock, flags);
- rhine_shutdown(&pdev->dev);
+ rhine_shutdown(pdev);
spin_unlock_irqrestore(&rp->lock, flags);
free_irq(dev->irq, dev);
.suspend = rhine_suspend,
.resume = rhine_resume,
#endif /* CONFIG_PM */
- .driver = {
- .shutdown = rhine_shutdown,
- }
+ .shutdown = rhine_shutdown,
};
bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
&dino_cfg_ops, NULL);
if(bus) {
+ pci_bus_add_devices(bus);
/* This code *depends* on scanning being single threaded
* if it isn't, this global bus number count will fail
*/
lba_bus = lba_dev->hba.hba_bus =
pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
cfg_ops, NULL);
+ if (lba_bus)
+ pci_bus_add_devices(lba_bus);
/* This is in lieu of calling pci_assign_unassigned_resources() */
if (is_pdc_pat()) {
* If there is an unattached subordinate bus, attach
* it and then scan for unattached PCI devices.
*/
- if (dev->subordinate && list_empty(&dev->subordinate->node)) {
- spin_lock(&pci_bus_lock);
- list_add_tail(&dev->subordinate->node, &dev->bus->children);
- spin_unlock(&pci_bus_lock);
+ if (dev->subordinate) {
+ if (list_empty(&dev->subordinate->node)) {
+ spin_lock(&pci_bus_lock);
+ list_add_tail(&dev->subordinate->node,
+ &dev->bus->children);
+ spin_unlock(&pci_bus_lock);
+ }
pci_bus_add_devices(dev->subordinate);
sysfs_create_link(&dev->subordinate->class_dev.kobj, &dev->dev.kobj, "bridge");
ibmphp_hpc.o
acpiphp-objs := acpiphp_core.o \
- acpiphp_glue.o \
- acpiphp_pci.o \
- acpiphp_res.o
+ acpiphp_glue.o
rpaphp-objs := rpaphp_core.o \
rpaphp_pci.o \
* Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
* Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
* Copyright (C) 2002,2003 NEC Corporation
+ * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
+ * Copyright (C) 2003-2005 Hewlett Packard
*
* All rights reserved.
*
struct acpiphp_bridge;
struct acpiphp_slot;
-struct pci_resource;
/*
* struct slot - slot information for each *physical* slot
struct acpiphp_slot *acpi_slot;
};
-/*
- * struct pci_resource - describes pci resource (mem, pfmem, io, bus)
- */
-struct pci_resource {
- struct pci_resource * next;
- u64 base;
- u32 length;
-};
-
/**
* struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters
* @cache_line_size in DWORD
int type;
int nr_slots;
- u8 seg;
- u8 bus;
- u8 sub;
-
u32 flags;
/* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */
struct hpp_param hpp;
spinlock_t res_lock;
-
- /* available resources on this bus */
- struct pci_resource *mem_head;
- struct pci_resource *p_mem_head;
- struct pci_resource *io_head;
- struct pci_resource *bus_head;
};
u8 function; /* pci function# */
u32 flags; /* see below */
-
- /* resources used for this function */
- struct pci_resource *mem_head;
- struct pci_resource *p_mem_head;
- struct pci_resource *io_head;
- struct pci_resource *bus_head;
};
/**
extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
extern u32 acpiphp_get_address (struct acpiphp_slot *slot);
-/* acpiphp_pci.c */
-extern struct pci_dev *acpiphp_allocate_pcidev (struct pci_bus *pbus, int dev, int fn);
-extern int acpiphp_configure_slot (struct acpiphp_slot *slot);
-extern int acpiphp_configure_function (struct acpiphp_func *func);
-extern void acpiphp_unconfigure_function (struct acpiphp_func *func);
-extern int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge);
-extern int acpiphp_init_func_resource (struct acpiphp_func *func);
-
-/* acpiphp_res.c */
-extern struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size);
-extern struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size);
-extern struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size);
-extern int acpiphp_resource_sort_and_combine (struct pci_resource **head);
-extern struct pci_resource *acpiphp_make_resource (u64 base, u32 length);
-extern void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to);
-extern void acpiphp_free_resource (struct pci_resource **res);
-extern void acpiphp_dump_resource (struct acpiphp_bridge *bridge); /* debug */
-extern void acpiphp_dump_func_resource (struct acpiphp_func *func); /* debug */
-
/* variables */
extern int acpiphp_debug;
* Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
* Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
* Copyright (C) 2002,2003 NEC Corporation
+ * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
+ * Copyright (C) 2003-2005 Hewlett Packard
*
* All rights reserved.
*
static int num_slots;
static struct acpiphp_attention_info *attention_info;
-#define DRIVER_VERSION "0.4"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kochi@bq.jp.nec.com>"
+#define DRIVER_VERSION "0.5"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kochi@bq.jp.nec.com>, Matthew Wilcox <willy@hp.com>"
#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver"
MODULE_AUTHOR(DRIVER_AUTHOR);
/**
* get_address - get pci address of a slot
* @hotplug_slot: slot to get status
- * @busdev: pointer to struct pci_busdev (seg, bus, dev)
- *
+ * @value: pointer to struct pci_busdev (seg, bus, dev)
*/
static int get_address(struct hotplug_slot *hotplug_slot, u32 *value)
{
* Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
* Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
* Copyright (C) 2002,2003 NEC Corporation
+ * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
+ * Copyright (C) 2003-2005 Hewlett Packard
+ * Copyright (C) 2005 Rajesh Shah (rajesh.shah@intel.com)
+ * Copyright (C) 2005 Intel Corporation
*
* All rights reserved.
*
*
*/
+/*
+ * Lifetime rules for pci_dev:
+ * - The one in acpiphp_func has its refcount elevated by pci_get_slot()
+ * when the driver is loaded or when an insertion event occurs. It loses
+ * a refcount when its ejected or the driver unloads.
+ * - The one in acpiphp_bridge has its refcount elevated by pci_get_slot()
+ * when the bridge is scanned and it loses a refcount when the bridge
+ * is removed.
+ */
+
#include <linux/init.h>
#include <linux/module.h>
bridge->nr_slots++;
- dbg("found ACPI PCI Hotplug slot at PCI %02x:%02x Slot:%d\n",
- slot->bridge->bus, slot->device, slot->sun);
+ dbg("found ACPI PCI Hotplug slot %d at PCI %04x:%02x:%02x\n",
+ slot->sun, pci_domain_nr(bridge->pci_bus),
+ bridge->pci_bus->number, slot->device);
}
newfunc->slot = slot;
list_add_tail(&newfunc->sibling, &slot->funcs);
/* associate corresponding pci_dev */
- newfunc->pci_dev = pci_find_slot(bridge->bus,
+ newfunc->pci_dev = pci_get_slot(bridge->pci_bus,
PCI_DEVFN(device, function));
if (newfunc->pci_dev) {
- if (acpiphp_init_func_resource(newfunc) < 0) {
- kfree(newfunc);
- return AE_ERROR;
- }
slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
}
}
-/* decode ACPI _CRS data and convert into our internal resource list
- * TBD: _TRA, etc.
- */
-static acpi_status
-decode_acpi_resource(struct acpi_resource *resource, void *context)
-{
- struct acpiphp_bridge *bridge = (struct acpiphp_bridge *) context;
- struct acpi_resource_address64 address;
- struct pci_resource *res;
-
- if (resource->id != ACPI_RSTYPE_ADDRESS16 &&
- resource->id != ACPI_RSTYPE_ADDRESS32 &&
- resource->id != ACPI_RSTYPE_ADDRESS64)
- return AE_OK;
-
- acpi_resource_to_address64(resource, &address);
-
- if (address.producer_consumer == ACPI_PRODUCER && address.address_length > 0) {
- dbg("resource type: %d: 0x%llx - 0x%llx\n", address.resource_type,
- (unsigned long long)address.min_address_range,
- (unsigned long long)address.max_address_range);
- res = acpiphp_make_resource(address.min_address_range,
- address.address_length);
- if (!res) {
- err("out of memory\n");
- return AE_OK;
- }
-
- switch (address.resource_type) {
- case ACPI_MEMORY_RANGE:
- if (address.attribute.memory.cache_attribute == ACPI_PREFETCHABLE_MEMORY) {
- res->next = bridge->p_mem_head;
- bridge->p_mem_head = res;
- } else {
- res->next = bridge->mem_head;
- bridge->mem_head = res;
- }
- break;
- case ACPI_IO_RANGE:
- res->next = bridge->io_head;
- bridge->io_head = res;
- break;
- case ACPI_BUS_NUMBER_RANGE:
- res->next = bridge->bus_head;
- bridge->bus_head = res;
- break;
- default:
- /* invalid type */
- kfree(res);
- break;
- }
- }
-
- return AE_OK;
-}
-
/* decode ACPI 2.0 _HPP hot plug parameters */
static void decode_hpp(struct acpiphp_bridge *bridge)
{
/* decode ACPI 2.0 _HPP (hot plug parameters) */
decode_hpp(bridge);
- /* subtract all resources already allocated */
- acpiphp_detect_pci_resource(bridge);
-
/* register all slot objects under this bridge */
status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1,
register_slot, bridge, NULL);
/* install notify handler */
- status = acpi_install_notify_handler(bridge->handle,
+ if (bridge->type != BRIDGE_TYPE_HOST) {
+ status = acpi_install_notify_handler(bridge->handle,
ACPI_SYSTEM_NOTIFY,
handle_hotplug_event_bridge,
bridge);
- if (ACPI_FAILURE(status)) {
- err("failed to register interrupt notify handler\n");
+ if (ACPI_FAILURE(status)) {
+ err("failed to register interrupt notify handler\n");
+ }
}
list_add(&bridge->list, &bridge_list);
-
- dbg("Bridge resource:\n");
- acpiphp_dump_resource(bridge);
}
/* allocate and initialize host bridge data structure */
-static void add_host_bridge(acpi_handle *handle, int seg, int bus)
+static void add_host_bridge(acpi_handle *handle, struct pci_bus *pci_bus)
{
- acpi_status status;
struct acpiphp_bridge *bridge;
bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
bridge->type = BRIDGE_TYPE_HOST;
bridge->handle = handle;
- bridge->seg = seg;
- bridge->bus = bus;
- bridge->pci_bus = pci_find_bus(seg, bus);
+ bridge->pci_bus = pci_bus;
spin_lock_init(&bridge->res_lock);
- /* to be overridden when we decode _CRS */
- bridge->sub = bridge->bus;
-
- /* decode resources */
-
- status = acpi_walk_resources(handle, METHOD_NAME__CRS,
- decode_acpi_resource, bridge);
-
- if (ACPI_FAILURE(status)) {
- err("failed to decode bridge resources\n");
- kfree(bridge);
- return;
- }
-
- acpiphp_resource_sort_and_combine(&bridge->io_head);
- acpiphp_resource_sort_and_combine(&bridge->mem_head);
- acpiphp_resource_sort_and_combine(&bridge->p_mem_head);
- acpiphp_resource_sort_and_combine(&bridge->bus_head);
-
- dbg("ACPI _CRS resource:\n");
- acpiphp_dump_resource(bridge);
-
- if (bridge->bus_head) {
- bridge->bus = bridge->bus_head->base;
- bridge->sub = bridge->bus_head->base + bridge->bus_head->length - 1;
- }
-
init_bridge_misc(bridge);
}
/* allocate and initialize PCI-to-PCI bridge data structure */
-static void add_p2p_bridge(acpi_handle *handle, int seg, int bus, int dev, int fn)
+static void add_p2p_bridge(acpi_handle *handle, struct pci_dev *pci_dev)
{
struct acpiphp_bridge *bridge;
- u8 tmp8;
- u16 tmp16;
- u64 base64, limit64;
- u32 base, limit, base32u, limit32u;
bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
if (bridge == NULL) {
bridge->type = BRIDGE_TYPE_P2P;
bridge->handle = handle;
- bridge->seg = seg;
-
- bridge->pci_dev = pci_find_slot(bus, PCI_DEVFN(dev, fn));
- if (!bridge->pci_dev) {
- err("Can't get pci_dev\n");
- kfree(bridge);
- return;
- }
- bridge->pci_bus = bridge->pci_dev->subordinate;
+ bridge->pci_dev = pci_dev_get(pci_dev);
+ bridge->pci_bus = pci_dev->subordinate;
if (!bridge->pci_bus) {
err("This is not a PCI-to-PCI bridge!\n");
- kfree(bridge);
- return;
+ goto err;
}
spin_lock_init(&bridge->res_lock);
- bridge->bus = bridge->pci_bus->number;
- bridge->sub = bridge->pci_bus->subordinate;
-
- /*
- * decode resources under this P2P bridge
- */
-
- /* I/O resources */
- pci_read_config_byte(bridge->pci_dev, PCI_IO_BASE, &tmp8);
- base = tmp8;
- pci_read_config_byte(bridge->pci_dev, PCI_IO_LIMIT, &tmp8);
- limit = tmp8;
-
- switch (base & PCI_IO_RANGE_TYPE_MASK) {
- case PCI_IO_RANGE_TYPE_16:
- base = (base << 8) & 0xf000;
- limit = ((limit << 8) & 0xf000) + 0xfff;
- bridge->io_head = acpiphp_make_resource((u64)base, limit - base + 1);
- if (!bridge->io_head) {
- err("out of memory\n");
- kfree(bridge);
- return;
- }
- dbg("16bit I/O range: %04x-%04x\n",
- (u32)bridge->io_head->base,
- (u32)(bridge->io_head->base + bridge->io_head->length - 1));
- break;
- case PCI_IO_RANGE_TYPE_32:
- pci_read_config_word(bridge->pci_dev, PCI_IO_BASE_UPPER16, &tmp16);
- base = ((u32)tmp16 << 16) | ((base << 8) & 0xf000);
- pci_read_config_word(bridge->pci_dev, PCI_IO_LIMIT_UPPER16, &tmp16);
- limit = (((u32)tmp16 << 16) | ((limit << 8) & 0xf000)) + 0xfff;
- bridge->io_head = acpiphp_make_resource((u64)base, limit - base + 1);
- if (!bridge->io_head) {
- err("out of memory\n");
- kfree(bridge);
- return;
- }
- dbg("32bit I/O range: %08x-%08x\n",
- (u32)bridge->io_head->base,
- (u32)(bridge->io_head->base + bridge->io_head->length - 1));
- break;
- case 0x0f:
- dbg("I/O space unsupported\n");
- break;
- default:
- warn("Unknown I/O range type\n");
- }
-
- /* Memory resources (mandatory for P2P bridge) */
- pci_read_config_word(bridge->pci_dev, PCI_MEMORY_BASE, &tmp16);
- base = (tmp16 & 0xfff0) << 16;
- pci_read_config_word(bridge->pci_dev, PCI_MEMORY_LIMIT, &tmp16);
- limit = ((tmp16 & 0xfff0) << 16) | 0xfffff;
- bridge->mem_head = acpiphp_make_resource((u64)base, limit - base + 1);
- if (!bridge->mem_head) {
- err("out of memory\n");
- kfree(bridge);
- return;
- }
- dbg("32bit Memory range: %08x-%08x\n",
- (u32)bridge->mem_head->base,
- (u32)(bridge->mem_head->base + bridge->mem_head->length-1));
-
- /* Prefetchable Memory resources (optional) */
- pci_read_config_word(bridge->pci_dev, PCI_PREF_MEMORY_BASE, &tmp16);
- base = tmp16;
- pci_read_config_word(bridge->pci_dev, PCI_PREF_MEMORY_LIMIT, &tmp16);
- limit = tmp16;
-
- switch (base & PCI_MEMORY_RANGE_TYPE_MASK) {
- case PCI_PREF_RANGE_TYPE_32:
- base = (base & 0xfff0) << 16;
- limit = ((limit & 0xfff0) << 16) | 0xfffff;
- bridge->p_mem_head = acpiphp_make_resource((u64)base, limit - base + 1);
- if (!bridge->p_mem_head) {
- err("out of memory\n");
- kfree(bridge);
- return;
- }
- dbg("32bit Prefetchable memory range: %08x-%08x\n",
- (u32)bridge->p_mem_head->base,
- (u32)(bridge->p_mem_head->base + bridge->p_mem_head->length - 1));
- break;
- case PCI_PREF_RANGE_TYPE_64:
- pci_read_config_dword(bridge->pci_dev, PCI_PREF_BASE_UPPER32, &base32u);
- pci_read_config_dword(bridge->pci_dev, PCI_PREF_LIMIT_UPPER32, &limit32u);
- base64 = ((u64)base32u << 32) | ((base & 0xfff0) << 16);
- limit64 = (((u64)limit32u << 32) | ((limit & 0xfff0) << 16)) + 0xfffff;
-
- bridge->p_mem_head = acpiphp_make_resource(base64, limit64 - base64 + 1);
- if (!bridge->p_mem_head) {
- err("out of memory\n");
- kfree(bridge);
- return;
- }
- dbg("64bit Prefetchable memory range: %08x%08x-%08x%08x\n",
- (u32)(bridge->p_mem_head->base >> 32),
- (u32)(bridge->p_mem_head->base & 0xffffffff),
- (u32)((bridge->p_mem_head->base + bridge->p_mem_head->length - 1) >> 32),
- (u32)((bridge->p_mem_head->base + bridge->p_mem_head->length - 1) & 0xffffffff));
- break;
- case 0x0f:
- break;
- default:
- warn("Unknown prefetchale memory type\n");
- }
-
init_bridge_misc(bridge);
+ return;
+ err:
+ pci_dev_put(pci_dev);
+ kfree(bridge);
+ return;
}
{
acpi_status status;
acpi_handle dummy_handle;
- unsigned long *segbus = context;
unsigned long tmp;
- int seg, bus, device, function;
+ int device, function;
struct pci_dev *dev;
-
- /* get PCI address */
- seg = (*segbus >> 8) & 0xff;
- bus = *segbus & 0xff;
+ struct pci_bus *pci_bus = context;
status = acpi_get_handle(handle, "_ADR", &dummy_handle);
if (ACPI_FAILURE(status))
device = (tmp >> 16) & 0xffff;
function = tmp & 0xffff;
- dev = pci_find_slot(bus, PCI_DEVFN(device, function));
+ dev = pci_get_slot(pci_bus, PCI_DEVFN(device, function));
- if (!dev)
- return AE_OK;
-
- if (!dev->subordinate)
- return AE_OK;
+ if (!dev || !dev->subordinate)
+ goto out;
/* check if this bridge has ejectable slots */
if (detect_ejectable_slots(handle) > 0) {
dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev));
- add_p2p_bridge(handle, seg, bus, device, function);
+ add_p2p_bridge(handle, dev);
}
+ out:
+ pci_dev_put(dev);
return AE_OK;
}
unsigned long tmp;
int seg, bus;
acpi_handle dummy_handle;
+ struct pci_bus *pci_bus;
/* if the bridge doesn't have _STA, we assume it is always there */
status = acpi_get_handle(handle, "_STA", &dummy_handle);
bus = 0;
}
+ pci_bus = pci_find_bus(seg, bus);
+ if (!pci_bus) {
+ err("Can't find bus %04x:%02x\n", seg, bus);
+ return 0;
+ }
+
/* check if this bridge has ejectable slots */
if (detect_ejectable_slots(handle) > 0) {
dbg("found PCI host-bus bridge with hot-pluggable slots\n");
- add_host_bridge(handle, seg, bus);
+ add_host_bridge(handle, pci_bus);
return 0;
}
- tmp = seg << 8 | bus;
-
/* search P2P bridges under this host bridge */
status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
- find_p2p_bridge, &tmp, NULL);
+ find_p2p_bridge, pci_bus, NULL);
if (ACPI_FAILURE(status))
warn("find_p2p_bridge faied (error code = 0x%x)\n",status);
return 0;
}
+static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
+{
+ struct list_head *head;
+ list_for_each(head, &bridge_list) {
+ struct acpiphp_bridge *bridge = list_entry(head,
+ struct acpiphp_bridge, list);
+ if (bridge->handle == handle)
+ return bridge;
+ }
+
+ return NULL;
+}
+
+static void cleanup_bridge(struct acpiphp_bridge *bridge)
+{
+ struct list_head *list, *tmp;
+ struct acpiphp_slot *slot;
+ acpi_status status;
+ acpi_handle handle = bridge->handle;
+
+ status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event_bridge);
+ if (ACPI_FAILURE(status))
+ err("failed to remove notify handler\n");
+
+ slot = bridge->slots;
+ while (slot) {
+ struct acpiphp_slot *next = slot->next;
+ list_for_each_safe (list, tmp, &slot->funcs) {
+ struct acpiphp_func *func;
+ func = list_entry(list, struct acpiphp_func, sibling);
+ status = acpi_remove_notify_handler(func->handle,
+ ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event_func);
+ if (ACPI_FAILURE(status))
+ err("failed to remove notify handler\n");
+ pci_dev_put(func->pci_dev);
+ list_del(list);
+ kfree(func);
+ }
+ kfree(slot);
+ slot = next;
+ }
+
+ pci_dev_put(bridge->pci_dev);
+ list_del(&bridge->list);
+ kfree(bridge);
+}
+
+static acpi_status
+cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ struct acpiphp_bridge *bridge;
+
+ if (!(bridge = acpiphp_handle_to_bridge(handle)))
+ return AE_OK;
+ cleanup_bridge(bridge);
+ return AE_OK;
+}
static void remove_bridge(acpi_handle handle)
{
- /* No-op for now .. */
+ struct acpiphp_bridge *bridge;
+
+ bridge = acpiphp_handle_to_bridge(handle);
+ if (bridge) {
+ cleanup_bridge(bridge);
+ } else {
+ /* clean-up p2p bridges under this host bridge */
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
+ (u32)1, cleanup_p2p_bridge, NULL, NULL);
+ }
+}
+
+static struct pci_dev * get_apic_pci_info(acpi_handle handle)
+{
+ struct acpi_pci_id id;
+ struct pci_bus *bus;
+ struct pci_dev *dev;
+
+ if (ACPI_FAILURE(acpi_get_pci_id(handle, &id)))
+ return NULL;
+
+ bus = pci_find_bus(id.segment, id.bus);
+ if (!bus)
+ return NULL;
+
+ dev = pci_get_slot(bus, PCI_DEVFN(id.device, id.function));
+ if (!dev)
+ return NULL;
+
+ if ((dev->class != PCI_CLASS_SYSTEM_PIC_IOAPIC) &&
+ (dev->class != PCI_CLASS_SYSTEM_PIC_IOXAPIC))
+ {
+ pci_dev_put(dev);
+ return NULL;
+ }
+
+ return dev;
+}
+
+static int get_gsi_base(acpi_handle handle, u32 *gsi_base)
+{
+ acpi_status status;
+ int result = -1;
+ unsigned long gsb;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *obj;
+ void *table;
+
+ status = acpi_evaluate_integer(handle, "_GSB", NULL, &gsb);
+ if (ACPI_SUCCESS(status)) {
+ *gsi_base = (u32)gsb;
+ return 0;
+ }
+
+ status = acpi_evaluate_object(handle, "_MAT", NULL, &buffer);
+ if (ACPI_FAILURE(status) || !buffer.length || !buffer.pointer)
+ return -1;
+
+ obj = buffer.pointer;
+ if (obj->type != ACPI_TYPE_BUFFER)
+ goto out;
+
+ table = obj->buffer.pointer;
+ switch (((acpi_table_entry_header *)table)->type) {
+ case ACPI_MADT_IOSAPIC:
+ *gsi_base = ((struct acpi_table_iosapic *)table)->global_irq_base;
+ result = 0;
+ break;
+ case ACPI_MADT_IOAPIC:
+ *gsi_base = ((struct acpi_table_ioapic *)table)->global_irq_base;
+ result = 0;
+ break;
+ default:
+ break;
+ }
+ out:
+ acpi_os_free(buffer.pointer);
+ return result;
+}
+
+static acpi_status
+ioapic_add(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ acpi_status status;
+ unsigned long sta;
+ acpi_handle tmp;
+ struct pci_dev *pdev;
+ u32 gsi_base;
+ u64 phys_addr;
+
+ /* Evaluate _STA if present */
+ status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+ if (ACPI_SUCCESS(status) && sta != ACPI_STA_ALL)
+ return AE_CTRL_DEPTH;
+
+ /* Scan only PCI bus scope */
+ status = acpi_get_handle(handle, "_HID", &tmp);
+ if (ACPI_SUCCESS(status))
+ return AE_CTRL_DEPTH;
+
+ if (get_gsi_base(handle, &gsi_base))
+ return AE_OK;
+
+ pdev = get_apic_pci_info(handle);
+ if (!pdev)
+ return AE_OK;
+
+ if (pci_enable_device(pdev)) {
+ pci_dev_put(pdev);
+ return AE_OK;
+ }
+
+ pci_set_master(pdev);
+
+ if (pci_request_region(pdev, 0, "I/O APIC(acpiphp)")) {
+ pci_disable_device(pdev);
+ pci_dev_put(pdev);
+ return AE_OK;
+ }
+
+ phys_addr = pci_resource_start(pdev, 0);
+ if (acpi_register_ioapic(handle, phys_addr, gsi_base)) {
+ pci_release_region(pdev, 0);
+ pci_disable_device(pdev);
+ pci_dev_put(pdev);
+ return AE_OK;
+ }
+
+ return AE_OK;
}
+static int acpiphp_configure_ioapics(acpi_handle handle)
+{
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
+ ACPI_UINT32_MAX, ioapic_add, NULL, NULL);
+ return 0;
+}
static int power_on_slot(struct acpiphp_slot *slot)
{
acpi_status status;
struct acpiphp_func *func;
struct list_head *l;
- struct acpi_object_list arg_list;
- union acpi_object arg;
int retval = 0;
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
- if (func->pci_dev && (func->flags & FUNC_HAS_PS3)) {
+ if (func->flags & FUNC_HAS_PS3) {
status = acpi_evaluate_object(func->handle, "_PS3", NULL, NULL);
if (ACPI_FAILURE(status)) {
warn("%s: _PS3 failed\n", __FUNCTION__);
}
}
- list_for_each (l, &slot->funcs) {
- func = list_entry(l, struct acpiphp_func, sibling);
-
- /* We don't want to call _EJ0 on non-existing functions. */
- if (func->pci_dev && (func->flags & FUNC_HAS_EJ0)) {
- /* _EJ0 method take one argument */
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
-
- status = acpi_evaluate_object(func->handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status)) {
- warn("%s: _EJ0 failed\n", __FUNCTION__);
- retval = -1;
- goto err_exit;
- } else
- break;
- }
- }
-
/* TBD: evaluate _STA to check if the slot is disabled */
slot->flags &= (~SLOT_POWEREDON);
*/
static int enable_device(struct acpiphp_slot *slot)
{
- u8 bus;
struct pci_dev *dev;
- struct pci_bus *child;
+ struct pci_bus *bus = slot->bridge->pci_bus;
struct list_head *l;
struct acpiphp_func *func;
int retval = 0;
- int num;
+ int num, max, pass;
if (slot->flags & SLOT_ENABLED)
goto err_exit;
/* sanity check: dev should be NULL when hot-plugged in */
- dev = pci_find_slot(slot->bridge->bus, PCI_DEVFN(slot->device, 0));
+ dev = pci_get_slot(bus, PCI_DEVFN(slot->device, 0));
if (dev) {
/* This case shouldn't happen */
err("pci_dev structure already exists.\n");
+ pci_dev_put(dev);
retval = -1;
goto err_exit;
}
- /* allocate resources to device */
- retval = acpiphp_configure_slot(slot);
- if (retval)
- goto err_exit;
-
- /* returned `dev' is the *first function* only! */
- num = pci_scan_slot(slot->bridge->pci_bus, PCI_DEVFN(slot->device, 0));
- if (num)
- pci_bus_add_devices(slot->bridge->pci_bus);
- dev = pci_find_slot(slot->bridge->bus, PCI_DEVFN(slot->device, 0));
-
- if (!dev) {
+ num = pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
+ if (num == 0) {
err("No new device found\n");
retval = -1;
goto err_exit;
}
- if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
- pci_read_config_byte(dev, PCI_SECONDARY_BUS, &bus);
- child = (struct pci_bus*) pci_add_new_bus(dev->bus, dev, bus);
- pci_do_scan_bus(child);
+ max = bus->secondary;
+ for (pass = 0; pass < 2; pass++) {
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (PCI_SLOT(dev->devfn) != slot->device)
+ continue;
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+ dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+ max = pci_scan_bridge(bus, dev, max, pass);
+ }
}
+ pci_bus_assign_resources(bus);
+ pci_bus_add_devices(bus);
+
/* associate pci_dev to our representation */
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
-
- func->pci_dev = pci_find_slot(slot->bridge->bus,
- PCI_DEVFN(slot->device,
+ func->pci_dev = pci_get_slot(bus, PCI_DEVFN(slot->device,
func->function));
- if (!func->pci_dev)
- continue;
-
- /* configure device */
- retval = acpiphp_configure_function(func);
- if (retval)
- goto err_exit;
}
slot->flags |= SLOT_ENABLED;
- dbg("Available resources:\n");
- acpiphp_dump_resource(slot->bridge);
-
err_exit:
return retval;
}
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
+ if (!func->pci_dev)
+ continue;
- if (func->pci_dev)
- acpiphp_unconfigure_function(func);
+ pci_remove_bus_device(func->pci_dev);
+ pci_dev_put(func->pci_dev);
+ func->pci_dev = NULL;
}
slot->flags &= (~SLOT_ENABLED);
return (unsigned int)sta;
}
+/**
+ * acpiphp_eject_slot - physically eject the slot
+ */
+static int acpiphp_eject_slot(struct acpiphp_slot *slot)
+{
+ acpi_status status;
+ struct acpiphp_func *func;
+ struct list_head *l;
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+
+ list_for_each (l, &slot->funcs) {
+ func = list_entry(l, struct acpiphp_func, sibling);
+
+ /* We don't want to call _EJ0 on non-existing functions. */
+ if ((func->flags & FUNC_HAS_EJ0)) {
+ /* _EJ0 method take one argument */
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = 1;
+
+ status = acpi_evaluate_object(func->handle, "_EJ0", &arg_list, NULL);
+ if (ACPI_FAILURE(status)) {
+ warn("%s: _EJ0 failed\n", __FUNCTION__);
+ return -1;
+ } else
+ break;
+ }
+ }
+ return 0;
+}
+
/**
* acpiphp_check_bridge - re-enumerate devices
*
if (retval) {
err("Error occurred in disabling\n");
goto err_exit;
+ } else {
+ acpiphp_eject_slot(slot);
}
disabled++;
} else {
return retval;
}
+static void program_hpp(struct pci_dev *dev, struct acpiphp_bridge *bridge)
+{
+ u16 pci_cmd, pci_bctl;
+ struct pci_dev *cdev;
+
+ /* Program hpp values for this device */
+ if (!(dev->hdr_type == PCI_HEADER_TYPE_NORMAL ||
+ (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
+ (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)))
+ return;
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
+ bridge->hpp.cache_line_size);
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER,
+ bridge->hpp.latency_timer);
+ pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
+ if (bridge->hpp.enable_SERR)
+ pci_cmd |= PCI_COMMAND_SERR;
+ else
+ pci_cmd &= ~PCI_COMMAND_SERR;
+ if (bridge->hpp.enable_PERR)
+ pci_cmd |= PCI_COMMAND_PARITY;
+ else
+ pci_cmd &= ~PCI_COMMAND_PARITY;
+ pci_write_config_word(dev, PCI_COMMAND, pci_cmd);
+
+ /* Program bridge control value and child devices */
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
+ pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER,
+ bridge->hpp.latency_timer);
+ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &pci_bctl);
+ if (bridge->hpp.enable_SERR)
+ pci_bctl |= PCI_BRIDGE_CTL_SERR;
+ else
+ pci_bctl &= ~PCI_BRIDGE_CTL_SERR;
+ if (bridge->hpp.enable_PERR)
+ pci_bctl |= PCI_BRIDGE_CTL_PARITY;
+ else
+ pci_bctl &= ~PCI_BRIDGE_CTL_PARITY;
+ pci_write_config_word(dev, PCI_BRIDGE_CONTROL, pci_bctl);
+ if (dev->subordinate) {
+ list_for_each_entry(cdev, &dev->subordinate->devices,
+ bus_list)
+ program_hpp(cdev, bridge);
+ }
+ }
+}
+
+static void acpiphp_set_hpp_values(acpi_handle handle, struct pci_bus *bus)
+{
+ struct acpiphp_bridge bridge;
+ struct pci_dev *dev;
+
+ memset(&bridge, 0, sizeof(bridge));
+ bridge.handle = handle;
+ decode_hpp(&bridge);
+ list_for_each_entry(dev, &bus->devices, bus_list)
+ program_hpp(dev, &bridge);
+
+}
+
+/*
+ * Remove devices for which we could not assign resources, call
+ * arch specific code to fix-up the bus
+ */
+static void acpiphp_sanitize_bus(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+ int i;
+ unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ for (i=0; i<PCI_BRIDGE_RESOURCES; i++) {
+ struct resource *res = &dev->resource[i];
+ if ((res->flags & type_mask) && !res->start &&
+ res->end) {
+ /* Could not assign a required resources
+ * for this device, remove it */
+ pci_remove_bus_device(dev);
+ break;
+ }
+ }
+ }
+}
+
+/* Program resources in newly inserted bridge */
+static int acpiphp_configure_bridge (acpi_handle handle)
+{
+ struct acpi_pci_id pci_id;
+ struct pci_bus *bus;
+
+ if (ACPI_FAILURE(acpi_get_pci_id(handle, &pci_id))) {
+ err("cannot get PCI domain and bus number for bridge\n");
+ return -EINVAL;
+ }
+ bus = pci_find_bus(pci_id.segment, pci_id.bus);
+ if (!bus) {
+ err("cannot find bus %d:%d\n",
+ pci_id.segment, pci_id.bus);
+ return -EINVAL;
+ }
+
+ pci_bus_size_bridges(bus);
+ pci_bus_assign_resources(bus);
+ acpiphp_sanitize_bus(bus);
+ acpiphp_set_hpp_values(handle, bus);
+ pci_enable_bridges(bus);
+ acpiphp_configure_ioapics(handle);
+ return 0;
+}
+
+static void handle_bridge_insertion(acpi_handle handle, u32 type)
+{
+ struct acpi_device *device, *pdevice;
+ acpi_handle phandle;
+
+ if ((type != ACPI_NOTIFY_BUS_CHECK) &&
+ (type != ACPI_NOTIFY_DEVICE_CHECK)) {
+ err("unexpected notification type %d\n", type);
+ return;
+ }
+
+ acpi_get_parent(handle, &phandle);
+ if (acpi_bus_get_device(phandle, &pdevice)) {
+ dbg("no parent device, assuming NULL\n");
+ pdevice = NULL;
+ }
+ if (acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE)) {
+ err("cannot add bridge to acpi list\n");
+ return;
+ }
+ if (!acpiphp_configure_bridge(handle) &&
+ !acpi_bus_start(device))
+ add_bridge(handle);
+ else
+ err("cannot configure and start bridge\n");
+
+}
+
/*
* ACPI event handlers
*/
char objname[64];
struct acpi_buffer buffer = { .length = sizeof(objname),
.pointer = objname };
+ struct acpi_device *device;
- bridge = (struct acpiphp_bridge *)context;
+ if (acpi_bus_get_device(handle, &device)) {
+ /* This bridge must have just been physically inserted */
+ handle_bridge_insertion(handle, type);
+ return;
+ }
+
+ bridge = acpiphp_handle_to_bridge(handle);
+ if (!bridge) {
+ err("cannot get bridge info\n");
+ return;
+ }
acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
}
}
-
/**
* handle_hotplug_event_func - handle ACPI event on functions (i.e. slots)
*
case ACPI_NOTIFY_EJECT_REQUEST:
/* request device eject */
dbg("%s: Device eject notify on %s\n", __FUNCTION__, objname);
- acpiphp_disable_slot(func->slot);
+ if (!(acpiphp_disable_slot(func->slot)))
+ acpiphp_eject_slot(func->slot);
break;
default:
}
}
+static int is_root_bridge(acpi_handle handle)
+{
+ acpi_status status;
+ struct acpi_device_info *info;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+ int i;
+
+ status = acpi_get_object_info(handle, &buffer);
+ if (ACPI_SUCCESS(status)) {
+ info = buffer.pointer;
+ if ((info->valid & ACPI_VALID_HID) &&
+ !strcmp(PCI_ROOT_HID_STRING,
+ info->hardware_id.value)) {
+ acpi_os_free(buffer.pointer);
+ return 1;
+ }
+ if (info->valid & ACPI_VALID_CID) {
+ for (i=0; i < info->compatibility_id.count; i++) {
+ if (!strcmp(PCI_ROOT_HID_STRING,
+ info->compatibility_id.id[i].value)) {
+ acpi_os_free(buffer.pointer);
+ return 1;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+static acpi_status
+find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ int *count = (int *)context;
+
+ if (is_root_bridge(handle)) {
+ acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event_bridge, NULL);
+ (*count)++;
+ }
+ return AE_OK ;
+}
static struct acpi_pci_driver acpi_pci_hp_driver = {
.add = add_bridge,
*/
int __init acpiphp_glue_init(void)
{
- int num;
-
- if (list_empty(&pci_root_buses))
- return -1;
+ int num = 0;
- num = acpi_pci_register_driver(&acpi_pci_hp_driver);
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, find_root_bridges, &num, NULL);
if (num <= 0)
return -1;
+ else
+ acpi_pci_register_driver(&acpi_pci_hp_driver);
return 0;
}
*/
void __exit acpiphp_glue_exit(void)
{
- struct list_head *l1, *l2, *n1, *n2;
- struct acpiphp_bridge *bridge;
- struct acpiphp_slot *slot, *next;
- struct acpiphp_func *func;
- acpi_status status;
-
- list_for_each_safe (l1, n1, &bridge_list) {
- bridge = (struct acpiphp_bridge *)l1;
- slot = bridge->slots;
- while (slot) {
- next = slot->next;
- list_for_each_safe (l2, n2, &slot->funcs) {
- func = list_entry(l2, struct acpiphp_func, sibling);
- acpiphp_free_resource(&func->io_head);
- acpiphp_free_resource(&func->mem_head);
- acpiphp_free_resource(&func->p_mem_head);
- acpiphp_free_resource(&func->bus_head);
- status = acpi_remove_notify_handler(func->handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_func);
- if (ACPI_FAILURE(status))
- err("failed to remove notify handler\n");
- kfree(func);
- }
- kfree(slot);
- slot = next;
- }
- status = acpi_remove_notify_handler(bridge->handle, ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_bridge);
- if (ACPI_FAILURE(status))
- err("failed to remove notify handler\n");
-
- acpiphp_free_resource(&bridge->io_head);
- acpiphp_free_resource(&bridge->mem_head);
- acpiphp_free_resource(&bridge->p_mem_head);
- acpiphp_free_resource(&bridge->bus_head);
-
- kfree(bridge);
- }
-
acpi_pci_unregister_driver(&acpi_pci_hp_driver);
}
list_for_each (node, &bridge_list) {
bridge = (struct acpiphp_bridge *)node;
- dbg("Bus%d %dslot(s)\n", bridge->bus, bridge->nr_slots);
+ dbg("Bus %04x:%02x has %d slot%s\n",
+ pci_domain_nr(bridge->pci_bus),
+ bridge->pci_bus->number, bridge->nr_slots,
+ bridge->nr_slots == 1 ? "" : "s");
num_slots += bridge->nr_slots;
}
- dbg("Total %dslots\n", num_slots);
+ dbg("Total %d slots\n", num_slots);
return num_slots;
}
return retval;
}
-
/**
* acpiphp_disable_slot - power off slot
*/
if (retval)
goto err_exit;
- acpiphp_resource_sort_and_combine(&slot->bridge->io_head);
- acpiphp_resource_sort_and_combine(&slot->bridge->mem_head);
- acpiphp_resource_sort_and_combine(&slot->bridge->p_mem_head);
- acpiphp_resource_sort_and_combine(&slot->bridge->bus_head);
- dbg("Available resources:\n");
- acpiphp_dump_resource(slot->bridge);
-
err_exit:
up(&slot->crit_sect);
return retval;
*/
u8 acpiphp_get_power_status(struct acpiphp_slot *slot)
{
- unsigned int sta;
-
- sta = get_slot_status(slot);
-
- return (sta & ACPI_STA_ENABLED) ? 1 : 0;
+ return (slot->flags & SLOT_POWEREDON);
}
u32 acpiphp_get_address(struct acpiphp_slot *slot)
{
u32 address;
+ struct pci_bus *pci_bus = slot->bridge->pci_bus;
- address = ((slot->bridge->seg) << 16) |
- ((slot->bridge->bus) << 8) |
+ address = (pci_domain_nr(pci_bus) << 16) |
+ (pci_bus->number << 8) |
slot->device;
return address;
+++ /dev/null
-/*
- * ACPI PCI HotPlug PCI configuration space management
- *
- * Copyright (C) 1995,2001 Compaq Computer Corporation
- * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
- * Copyright (C) 2001,2002 IBM Corp.
- * Copyright (C) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
- * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (C) 2002 NEC Corporation
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <t-kochi@bq.jp.nec.com>
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/acpi.h>
-#include "../pci.h"
-#include "pci_hotplug.h"
-#include "acpiphp.h"
-
-#define MY_NAME "acpiphp_pci"
-
-
-/* allocate mem/pmem/io resource to a new function */
-static int init_config_space (struct acpiphp_func *func)
-{
- u32 bar, len;
- u32 address[] = {
- PCI_BASE_ADDRESS_0,
- PCI_BASE_ADDRESS_1,
- PCI_BASE_ADDRESS_2,
- PCI_BASE_ADDRESS_3,
- PCI_BASE_ADDRESS_4,
- PCI_BASE_ADDRESS_5,
- 0
- };
- int count;
- struct acpiphp_bridge *bridge;
- struct pci_resource *res;
- struct pci_bus *pbus;
- int bus, device, function;
- unsigned int devfn;
- u16 tmp;
-
- bridge = func->slot->bridge;
- pbus = bridge->pci_bus;
- bus = bridge->bus;
- device = func->slot->device;
- function = func->function;
- devfn = PCI_DEVFN(device, function);
-
- for (count = 0; address[count]; count++) { /* for 6 BARs */
- pci_bus_write_config_dword(pbus, devfn,
- address[count], 0xFFFFFFFF);
- pci_bus_read_config_dword(pbus, devfn, address[count], &bar);
-
- if (!bar) /* This BAR is not implemented */
- continue;
-
- dbg("Device %02x.%02x BAR %d wants %x\n", device, function, count, bar);
-
- if (bar & PCI_BASE_ADDRESS_SPACE_IO) {
- /* This is IO */
-
- len = bar & (PCI_BASE_ADDRESS_IO_MASK & 0xFFFF);
- len = len & ~(len - 1);
-
- dbg("len in IO %x, BAR %d\n", len, count);
-
- spin_lock(&bridge->res_lock);
- res = acpiphp_get_io_resource(&bridge->io_head, len);
- spin_unlock(&bridge->res_lock);
-
- if (!res) {
- err("cannot allocate requested io for %02x:%02x.%d len %x\n",
- bus, device, function, len);
- return -1;
- }
- pci_bus_write_config_dword(pbus, devfn,
- address[count],
- (u32)res->base);
- res->next = func->io_head;
- func->io_head = res;
-
- } else {
- /* This is Memory */
- if (bar & PCI_BASE_ADDRESS_MEM_PREFETCH) {
- /* pfmem */
-
- len = bar & 0xFFFFFFF0;
- len = ~len + 1;
-
- dbg("len in PFMEM %x, BAR %d\n", len, count);
-
- spin_lock(&bridge->res_lock);
- res = acpiphp_get_resource(&bridge->p_mem_head, len);
- spin_unlock(&bridge->res_lock);
-
- if (!res) {
- err("cannot allocate requested pfmem for %02x:%02x.%d len %x\n",
- bus, device, function, len);
- return -1;
- }
-
- pci_bus_write_config_dword(pbus, devfn,
- address[count],
- (u32)res->base);
-
- if (bar & PCI_BASE_ADDRESS_MEM_TYPE_64) { /* takes up another dword */
- dbg("inside the pfmem 64 case, count %d\n", count);
- count += 1;
- pci_bus_write_config_dword(pbus, devfn,
- address[count],
- (u32)(res->base >> 32));
- }
-
- res->next = func->p_mem_head;
- func->p_mem_head = res;
-
- } else {
- /* regular memory */
-
- len = bar & 0xFFFFFFF0;
- len = ~len + 1;
-
- dbg("len in MEM %x, BAR %d\n", len, count);
-
- spin_lock(&bridge->res_lock);
- res = acpiphp_get_resource(&bridge->mem_head, len);
- spin_unlock(&bridge->res_lock);
-
- if (!res) {
- err("cannot allocate requested pfmem for %02x:%02x.%d len %x\n",
- bus, device, function, len);
- return -1;
- }
-
- pci_bus_write_config_dword(pbus, devfn,
- address[count],
- (u32)res->base);
-
- if (bar & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- /* takes up another dword */
- dbg("inside mem 64 case, reg. mem, count %d\n", count);
- count += 1;
- pci_bus_write_config_dword(pbus, devfn,
- address[count],
- (u32)(res->base >> 32));
- }
-
- res->next = func->mem_head;
- func->mem_head = res;
-
- }
- }
- }
-
- /* disable expansion rom */
- pci_bus_write_config_dword(pbus, devfn, PCI_ROM_ADDRESS, 0x00000000);
-
- /* set PCI parameters from _HPP */
- pci_bus_write_config_byte(pbus, devfn, PCI_CACHE_LINE_SIZE,
- bridge->hpp.cache_line_size);
- pci_bus_write_config_byte(pbus, devfn, PCI_LATENCY_TIMER,
- bridge->hpp.latency_timer);
-
- pci_bus_read_config_word(pbus, devfn, PCI_COMMAND, &tmp);
- if (bridge->hpp.enable_SERR)
- tmp |= PCI_COMMAND_SERR;
- if (bridge->hpp.enable_PERR)
- tmp |= PCI_COMMAND_PARITY;
- pci_bus_write_config_word(pbus, devfn, PCI_COMMAND, tmp);
-
- return 0;
-}
-
-/* detect_used_resource - subtract resource under dev from bridge */
-static int detect_used_resource (struct acpiphp_bridge *bridge, struct pci_dev *dev)
-{
- int count;
-
- dbg("Device %s\n", pci_name(dev));
-
- for (count = 0; count < DEVICE_COUNT_RESOURCE; count++) {
- struct pci_resource *res;
- struct pci_resource **head;
- unsigned long base = dev->resource[count].start;
- unsigned long len = dev->resource[count].end - base + 1;
- unsigned long flags = dev->resource[count].flags;
-
- if (!flags)
- continue;
-
- dbg("BAR[%d] 0x%lx - 0x%lx (0x%lx)\n", count, base,
- base + len - 1, flags);
-
- if (flags & IORESOURCE_IO) {
- head = &bridge->io_head;
- } else if (flags & IORESOURCE_PREFETCH) {
- head = &bridge->p_mem_head;
- } else {
- head = &bridge->mem_head;
- }
-
- spin_lock(&bridge->res_lock);
- res = acpiphp_get_resource_with_base(head, base, len);
- spin_unlock(&bridge->res_lock);
- if (res)
- kfree(res);
- }
-
- return 0;
-}
-
-
-/**
- * acpiphp_detect_pci_resource - detect resources under bridge
- * @bridge: detect all resources already used under this bridge
- *
- * collect all resources already allocated for all devices under a bridge.
- */
-int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge)
-{
- struct list_head *l;
- struct pci_dev *dev;
-
- list_for_each (l, &bridge->pci_bus->devices) {
- dev = pci_dev_b(l);
- detect_used_resource(bridge, dev);
- }
-
- return 0;
-}
-
-
-/**
- * acpiphp_init_slot_resource - gather resource usage information of a slot
- * @slot: ACPI slot object to be checked, should have valid pci_dev member
- *
- * TBD: PCI-to-PCI bridge case
- * use pci_dev->resource[]
- */
-int acpiphp_init_func_resource (struct acpiphp_func *func)
-{
- u64 base;
- u32 bar, len;
- u32 address[] = {
- PCI_BASE_ADDRESS_0,
- PCI_BASE_ADDRESS_1,
- PCI_BASE_ADDRESS_2,
- PCI_BASE_ADDRESS_3,
- PCI_BASE_ADDRESS_4,
- PCI_BASE_ADDRESS_5,
- 0
- };
- int count;
- struct pci_resource *res;
- struct pci_dev *dev;
-
- dev = func->pci_dev;
- dbg("Hot-pluggable device %s\n", pci_name(dev));
-
- for (count = 0; address[count]; count++) { /* for 6 BARs */
- pci_read_config_dword(dev, address[count], &bar);
-
- if (!bar) /* This BAR is not implemented */
- continue;
-
- pci_write_config_dword(dev, address[count], 0xFFFFFFFF);
- pci_read_config_dword(dev, address[count], &len);
-
- if (len & PCI_BASE_ADDRESS_SPACE_IO) {
- /* This is IO */
- base = bar & 0xFFFFFFFC;
- len = len & (PCI_BASE_ADDRESS_IO_MASK & 0xFFFF);
- len = len & ~(len - 1);
-
- dbg("BAR[%d] %08x - %08x (IO)\n", count, (u32)base, (u32)base + len - 1);
-
- res = acpiphp_make_resource(base, len);
- if (!res)
- goto no_memory;
-
- res->next = func->io_head;
- func->io_head = res;
-
- } else {
- /* This is Memory */
- base = bar & 0xFFFFFFF0;
- if (len & PCI_BASE_ADDRESS_MEM_PREFETCH) {
- /* pfmem */
-
- len &= 0xFFFFFFF0;
- len = ~len + 1;
-
- if (len & PCI_BASE_ADDRESS_MEM_TYPE_64) { /* takes up another dword */
- dbg("prefetch mem 64\n");
- count += 1;
- }
- dbg("BAR[%d] %08x - %08x (PMEM)\n", count, (u32)base, (u32)base + len - 1);
- res = acpiphp_make_resource(base, len);
- if (!res)
- goto no_memory;
-
- res->next = func->p_mem_head;
- func->p_mem_head = res;
-
- } else {
- /* regular memory */
-
- len &= 0xFFFFFFF0;
- len = ~len + 1;
-
- if (len & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- /* takes up another dword */
- dbg("mem 64\n");
- count += 1;
- }
- dbg("BAR[%d] %08x - %08x (MEM)\n", count, (u32)base, (u32)base + len - 1);
- res = acpiphp_make_resource(base, len);
- if (!res)
- goto no_memory;
-
- res->next = func->mem_head;
- func->mem_head = res;
-
- }
- }
-
- pci_write_config_dword(dev, address[count], bar);
- }
-#if 1
- acpiphp_dump_func_resource(func);
-#endif
-
- return 0;
-
- no_memory:
- err("out of memory\n");
- acpiphp_free_resource(&func->io_head);
- acpiphp_free_resource(&func->mem_head);
- acpiphp_free_resource(&func->p_mem_head);
-
- return -1;
-}
-
-
-/**
- * acpiphp_configure_slot - allocate PCI resources
- * @slot: slot to be configured
- *
- * initializes a PCI functions on a device inserted
- * into the slot
- *
- */
-int acpiphp_configure_slot (struct acpiphp_slot *slot)
-{
- struct acpiphp_func *func;
- struct list_head *l;
- u8 hdr;
- u32 dvid;
- int retval = 0;
- int is_multi = 0;
-
- pci_bus_read_config_byte(slot->bridge->pci_bus,
- PCI_DEVFN(slot->device, 0),
- PCI_HEADER_TYPE, &hdr);
-
- if (hdr & 0x80)
- is_multi = 1;
-
- list_for_each (l, &slot->funcs) {
- func = list_entry(l, struct acpiphp_func, sibling);
- if (is_multi || func->function == 0) {
- pci_bus_read_config_dword(slot->bridge->pci_bus,
- PCI_DEVFN(slot->device,
- func->function),
- PCI_VENDOR_ID, &dvid);
- if (dvid != 0xffffffff) {
- retval = init_config_space(func);
- if (retval)
- break;
- }
- }
- }
-
- return retval;
-}
-
-/**
- * acpiphp_configure_function - configure PCI function
- * @func: function to be configured
- *
- * initializes a PCI functions on a device inserted
- * into the slot
- *
- */
-int acpiphp_configure_function (struct acpiphp_func *func)
-{
- /* all handled by the pci core now */
- return 0;
-}
-
-/**
- * acpiphp_unconfigure_function - unconfigure PCI function
- * @func: function to be unconfigured
- *
- */
-void acpiphp_unconfigure_function (struct acpiphp_func *func)
-{
- struct acpiphp_bridge *bridge;
-
- /* if pci_dev is NULL, ignore it */
- if (!func->pci_dev)
- return;
-
- pci_remove_bus_device(func->pci_dev);
-
- /* free all resources */
- bridge = func->slot->bridge;
-
- spin_lock(&bridge->res_lock);
- acpiphp_move_resource(&func->io_head, &bridge->io_head);
- acpiphp_move_resource(&func->mem_head, &bridge->mem_head);
- acpiphp_move_resource(&func->p_mem_head, &bridge->p_mem_head);
- acpiphp_move_resource(&func->bus_head, &bridge->bus_head);
- spin_unlock(&bridge->res_lock);
-}
+++ /dev/null
-/*
- * ACPI PCI HotPlug Utility functions
- *
- * Copyright (C) 1995,2001 Compaq Computer Corporation
- * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
- * Copyright (C) 2001 IBM Corp.
- * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (C) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
- * Copyright (C) 2002 NEC Corporation
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <gregkh@us.ibm.com>, <t-kochi@bq.jp.nec.com>
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <linux/sysctl.h>
-#include <linux/pci.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-
-#include <linux/ioctl.h>
-#include <linux/fcntl.h>
-
-#include <linux/list.h>
-
-#include "pci_hotplug.h"
-#include "acpiphp.h"
-
-#define MY_NAME "acpiphp_res"
-
-
-/*
- * sort_by_size - sort nodes by their length, smallest first
- */
-static int sort_by_size(struct pci_resource **head)
-{
- struct pci_resource *current_res;
- struct pci_resource *next_res;
- int out_of_order = 1;
-
- if (!(*head))
- return 1;
-
- if (!((*head)->next))
- return 0;
-
- while (out_of_order) {
- out_of_order = 0;
-
- /* Special case for swapping list head */
- if (((*head)->next) &&
- ((*head)->length > (*head)->next->length)) {
- out_of_order++;
- current_res = *head;
- *head = (*head)->next;
- current_res->next = (*head)->next;
- (*head)->next = current_res;
- }
-
- current_res = *head;
-
- while (current_res->next && current_res->next->next) {
- if (current_res->next->length > current_res->next->next->length) {
- out_of_order++;
- next_res = current_res->next;
- current_res->next = current_res->next->next;
- current_res = current_res->next;
- next_res->next = current_res->next;
- current_res->next = next_res;
- } else
- current_res = current_res->next;
- }
- } /* End of out_of_order loop */
-
- return 0;
-}
-
-#if 0
-/*
- * sort_by_max_size - sort nodes by their length, largest first
- */
-static int sort_by_max_size(struct pci_resource **head)
-{
- struct pci_resource *current_res;
- struct pci_resource *next_res;
- int out_of_order = 1;
-
- if (!(*head))
- return 1;
-
- if (!((*head)->next))
- return 0;
-
- while (out_of_order) {
- out_of_order = 0;
-
- /* Special case for swapping list head */
- if (((*head)->next) &&
- ((*head)->length < (*head)->next->length)) {
- out_of_order++;
- current_res = *head;
- *head = (*head)->next;
- current_res->next = (*head)->next;
- (*head)->next = current_res;
- }
-
- current_res = *head;
-
- while (current_res->next && current_res->next->next) {
- if (current_res->next->length < current_res->next->next->length) {
- out_of_order++;
- next_res = current_res->next;
- current_res->next = current_res->next->next;
- current_res = current_res->next;
- next_res->next = current_res->next;
- current_res->next = next_res;
- } else
- current_res = current_res->next;
- }
- } /* End of out_of_order loop */
-
- return 0;
-}
-#endif
-
-/**
- * get_io_resource - get resource for I/O ports
- *
- * this function sorts the resource list by size and then
- * returns the first node of "size" length that is not in the
- * ISA aliasing window. If it finds a node larger than "size"
- * it will split it up.
- *
- * size must be a power of two.
- *
- * difference from get_resource is handling of ISA aliasing space.
- *
- */
-struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size)
-{
- struct pci_resource *prevnode;
- struct pci_resource *node;
- struct pci_resource *split_node;
- u64 temp_qword;
-
- if (!(*head))
- return NULL;
-
- if (acpiphp_resource_sort_and_combine(head))
- return NULL;
-
- if (sort_by_size(head))
- return NULL;
-
- for (node = *head; node; node = node->next) {
- if (node->length < size)
- continue;
-
- if (node->base & (size - 1)) {
- /* this one isn't base aligned properly
- so we'll make a new entry and split it up */
- temp_qword = (node->base | (size-1)) + 1;
-
- /* Short circuit if adjusted size is too small */
- if ((node->length - (temp_qword - node->base)) < size)
- continue;
-
- split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
-
- if (!split_node)
- return NULL;
-
- node->base = temp_qword;
- node->length -= split_node->length;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- } /* End of non-aligned base */
-
- /* Don't need to check if too small since we already did */
- if (node->length > size) {
- /* this one is longer than we need
- so we'll make a new entry and split it up */
- split_node = acpiphp_make_resource(node->base + size, node->length - size);
-
- if (!split_node)
- return NULL;
-
- node->length = size;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- } /* End of too big on top end */
-
- /* For IO make sure it's not in the ISA aliasing space */
- if ((node->base & 0x300L) && !(node->base & 0xfffff000))
- continue;
-
- /* If we got here, then it is the right size
- Now take it out of the list */
- if (*head == node) {
- *head = node->next;
- } else {
- prevnode = *head;
- while (prevnode->next != node)
- prevnode = prevnode->next;
-
- prevnode->next = node->next;
- }
- node->next = NULL;
- /* Stop looping */
- break;
- }
-
- return node;
-}
-
-
-#if 0
-/**
- * get_max_resource - get the largest resource
- *
- * Gets the largest node that is at least "size" big from the
- * list pointed to by head. It aligns the node on top and bottom
- * to "size" alignment before returning it.
- */
-static struct pci_resource *acpiphp_get_max_resource (struct pci_resource **head, u32 size)
-{
- struct pci_resource *max;
- struct pci_resource *temp;
- struct pci_resource *split_node;
- u64 temp_qword;
-
- if (!(*head))
- return NULL;
-
- if (acpiphp_resource_sort_and_combine(head))
- return NULL;
-
- if (sort_by_max_size(head))
- return NULL;
-
- for (max = *head;max; max = max->next) {
-
- /* If not big enough we could probably just bail,
- instead we'll continue to the next. */
- if (max->length < size)
- continue;
-
- if (max->base & (size - 1)) {
- /* this one isn't base aligned properly
- so we'll make a new entry and split it up */
- temp_qword = (max->base | (size-1)) + 1;
-
- /* Short circuit if adjusted size is too small */
- if ((max->length - (temp_qword - max->base)) < size)
- continue;
-
- split_node = acpiphp_make_resource(max->base, temp_qword - max->base);
-
- if (!split_node)
- return NULL;
-
- max->base = temp_qword;
- max->length -= split_node->length;
-
- /* Put it next in the list */
- split_node->next = max->next;
- max->next = split_node;
- }
-
- if ((max->base + max->length) & (size - 1)) {
- /* this one isn't end aligned properly at the top
- so we'll make a new entry and split it up */
- temp_qword = ((max->base + max->length) & ~(size - 1));
-
- split_node = acpiphp_make_resource(temp_qword,
- max->length + max->base - temp_qword);
-
- if (!split_node)
- return NULL;
-
- max->length -= split_node->length;
-
- /* Put it in the list */
- split_node->next = max->next;
- max->next = split_node;
- }
-
- /* Make sure it didn't shrink too much when we aligned it */
- if (max->length < size)
- continue;
-
- /* Now take it out of the list */
- temp = (struct pci_resource*) *head;
- if (temp == max) {
- *head = max->next;
- } else {
- while (temp && temp->next != max) {
- temp = temp->next;
- }
-
- temp->next = max->next;
- }
-
- max->next = NULL;
- return max;
- }
-
- /* If we get here, we couldn't find one */
- return NULL;
-}
-#endif
-
-/**
- * get_resource - get resource (mem, pfmem)
- *
- * this function sorts the resource list by size and then
- * returns the first node of "size" length. If it finds a node
- * larger than "size" it will split it up.
- *
- * size must be a power of two.
- *
- */
-struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size)
-{
- struct pci_resource *prevnode;
- struct pci_resource *node;
- struct pci_resource *split_node;
- u64 temp_qword;
-
- if (!(*head))
- return NULL;
-
- if (acpiphp_resource_sort_and_combine(head))
- return NULL;
-
- if (sort_by_size(head))
- return NULL;
-
- for (node = *head; node; node = node->next) {
- dbg("%s: req_size =%x node=%p, base=%x, length=%x\n",
- __FUNCTION__, size, node, (u32)node->base, node->length);
- if (node->length < size)
- continue;
-
- if (node->base & (size - 1)) {
- dbg("%s: not aligned\n", __FUNCTION__);
- /* this one isn't base aligned properly
- so we'll make a new entry and split it up */
- temp_qword = (node->base | (size-1)) + 1;
-
- /* Short circuit if adjusted size is too small */
- if ((node->length - (temp_qword - node->base)) < size)
- continue;
-
- split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
-
- if (!split_node)
- return NULL;
-
- node->base = temp_qword;
- node->length -= split_node->length;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- } /* End of non-aligned base */
-
- /* Don't need to check if too small since we already did */
- if (node->length > size) {
- dbg("%s: too big\n", __FUNCTION__);
- /* this one is longer than we need
- so we'll make a new entry and split it up */
- split_node = acpiphp_make_resource(node->base + size, node->length - size);
-
- if (!split_node)
- return NULL;
-
- node->length = size;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- } /* End of too big on top end */
-
- dbg("%s: got one!!!\n", __FUNCTION__);
- /* If we got here, then it is the right size
- Now take it out of the list */
- if (*head == node) {
- *head = node->next;
- } else {
- prevnode = *head;
- while (prevnode->next != node)
- prevnode = prevnode->next;
-
- prevnode->next = node->next;
- }
- node->next = NULL;
- /* Stop looping */
- break;
- }
- return node;
-}
-
-/**
- * get_resource_with_base - get resource with specific base address
- *
- * this function
- * returns the first node of "size" length located at specified base address.
- * If it finds a node larger than "size" it will split it up.
- *
- * size must be a power of two.
- *
- */
-struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size)
-{
- struct pci_resource *prevnode;
- struct pci_resource *node;
- struct pci_resource *split_node;
- u64 temp_qword;
-
- if (!(*head))
- return NULL;
-
- if (acpiphp_resource_sort_and_combine(head))
- return NULL;
-
- for (node = *head; node; node = node->next) {
- dbg(": 1st req_base=%x req_size =%x node=%p, base=%x, length=%x\n",
- (u32)base, size, node, (u32)node->base, node->length);
- if (node->base > base)
- continue;
-
- if ((node->base + node->length) < (base + size))
- continue;
-
- if (node->base < base) {
- dbg(": split 1\n");
- /* this one isn't base aligned properly
- so we'll make a new entry and split it up */
- temp_qword = base;
-
- /* Short circuit if adjusted size is too small */
- if ((node->length - (temp_qword - node->base)) < size)
- continue;
-
- split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
-
- if (!split_node)
- return NULL;
-
- node->base = temp_qword;
- node->length -= split_node->length;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- }
-
- dbg(": 2nd req_base=%x req_size =%x node=%p, base=%x, length=%x\n",
- (u32)base, size, node, (u32)node->base, node->length);
-
- /* Don't need to check if too small since we already did */
- if (node->length > size) {
- dbg(": split 2\n");
- /* this one is longer than we need
- so we'll make a new entry and split it up */
- split_node = acpiphp_make_resource(node->base + size, node->length - size);
-
- if (!split_node)
- return NULL;
-
- node->length = size;
-
- /* Put it in the list */
- split_node->next = node->next;
- node->next = split_node;
- } /* End of too big on top end */
-
- dbg(": got one!!!\n");
- /* If we got here, then it is the right size
- Now take it out of the list */
- if (*head == node) {
- *head = node->next;
- } else {
- prevnode = *head;
- while (prevnode->next != node)
- prevnode = prevnode->next;
-
- prevnode->next = node->next;
- }
- node->next = NULL;
- /* Stop looping */
- break;
- }
- return node;
-}
-
-
-/**
- * acpiphp_resource_sort_and_combine
- *
- * Sorts all of the nodes in the list in ascending order by
- * their base addresses. Also does garbage collection by
- * combining adjacent nodes.
- *
- * returns 0 if success
- */
-int acpiphp_resource_sort_and_combine (struct pci_resource **head)
-{
- struct pci_resource *node1;
- struct pci_resource *node2;
- int out_of_order = 1;
-
- if (!(*head))
- return 1;
-
- dbg("*head->next = %p\n",(*head)->next);
-
- if (!(*head)->next)
- return 0; /* only one item on the list, already sorted! */
-
- dbg("*head->base = 0x%x\n",(u32)(*head)->base);
- dbg("*head->next->base = 0x%x\n", (u32)(*head)->next->base);
- while (out_of_order) {
- out_of_order = 0;
-
- /* Special case for swapping list head */
- if (((*head)->next) &&
- ((*head)->base > (*head)->next->base)) {
- node1 = *head;
- (*head) = (*head)->next;
- node1->next = (*head)->next;
- (*head)->next = node1;
- out_of_order++;
- }
-
- node1 = (*head);
-
- while (node1->next && node1->next->next) {
- if (node1->next->base > node1->next->next->base) {
- out_of_order++;
- node2 = node1->next;
- node1->next = node1->next->next;
- node1 = node1->next;
- node2->next = node1->next;
- node1->next = node2;
- } else
- node1 = node1->next;
- }
- } /* End of out_of_order loop */
-
- node1 = *head;
-
- while (node1 && node1->next) {
- if ((node1->base + node1->length) == node1->next->base) {
- /* Combine */
- dbg("8..\n");
- node1->length += node1->next->length;
- node2 = node1->next;
- node1->next = node1->next->next;
- kfree(node2);
- } else
- node1 = node1->next;
- }
-
- return 0;
-}
-
-
-/**
- * acpiphp_make_resource - make resource structure
- * @base: base address of a resource
- * @length: length of a resource
- */
-struct pci_resource *acpiphp_make_resource (u64 base, u32 length)
-{
- struct pci_resource *res;
-
- res = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
- if (res) {
- memset(res, 0, sizeof(struct pci_resource));
- res->base = base;
- res->length = length;
- }
-
- return res;
-}
-
-
-/**
- * acpiphp_move_resource - move linked resources from one to another
- * @from: head of linked resource list
- * @to: head of linked resource list
- */
-void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to)
-{
- struct pci_resource *tmp;
-
- while (*from) {
- tmp = (*from)->next;
- (*from)->next = *to;
- *to = *from;
- *from = tmp;
- }
-
- /* *from = NULL is guaranteed */
-}
-
-
-/**
- * acpiphp_free_resource - free all linked resources
- * @res: head of linked resource list
- */
-void acpiphp_free_resource (struct pci_resource **res)
-{
- struct pci_resource *tmp;
-
- while (*res) {
- tmp = (*res)->next;
- kfree(*res);
- *res = tmp;
- }
-
- /* *res = NULL is guaranteed */
-}
-
-
-/* debug support functions; will go away sometime :) */
-static void dump_resource(struct pci_resource *head)
-{
- struct pci_resource *p;
- int cnt;
-
- p = head;
- cnt = 0;
-
- while (p) {
- dbg("[%02d] %08x - %08x\n",
- cnt++, (u32)p->base, (u32)p->base + p->length - 1);
- p = p->next;
- }
-}
-
-void acpiphp_dump_resource(struct acpiphp_bridge *bridge)
-{
- dbg("I/O resource:\n");
- dump_resource(bridge->io_head);
- dbg("MEM resource:\n");
- dump_resource(bridge->mem_head);
- dbg("PMEM resource:\n");
- dump_resource(bridge->p_mem_head);
- dbg("BUS resource:\n");
- dump_resource(bridge->bus_head);
-}
-
-void acpiphp_dump_func_resource(struct acpiphp_func *func)
-{
- dbg("I/O resource:\n");
- dump_resource(func->io_head);
- dbg("MEM resource:\n");
- dump_resource(func->mem_head);
- dbg("PMEM resource:\n");
- dump_resource(func->p_mem_head);
- dbg("BUS resource:\n");
- dump_resource(func->bus_head);
-}
static void __iomem *cpqhp_rom_start;
static int power_mode;
static int debug;
+static int initialized;
#define DRIVER_VERSION "0.9.8"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>"
{
int loop;
int retval = 0;
- static int initialized = 0;
if (initialized)
return 0;
}
// Stop the notification mechanism
- cpqhp_event_stop_thread();
+ if (initialized)
+ cpqhp_event_stop_thread();
//unmap the rom address
if (cpqhp_rom_start)
static kmem_cache_t* msi_cachep;
static int pci_msi_enable = 1;
-static int last_alloc_vector = 0;
-static int nr_released_vectors = 0;
+static int last_alloc_vector;
+static int nr_released_vectors;
static int nr_reserved_vectors = NR_HP_RESERVED_VECTORS;
-static int nr_msix_devices = 0;
+static int nr_msix_devices;
#ifndef CONFIG_X86_IO_APIC
int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
return 0; /* never anything pending */
}
-static void release_msi(unsigned int vector);
-static void shutdown_msi_irq(unsigned int vector)
-{
- release_msi(vector);
-}
-
-#define shutdown_msi_irq_wo_maskbit shutdown_msi_irq
-static void enable_msi_irq_wo_maskbit(unsigned int vector) {}
-static void disable_msi_irq_wo_maskbit(unsigned int vector) {}
-static void ack_msi_irq_wo_maskbit(unsigned int vector) {}
-static void end_msi_irq_wo_maskbit(unsigned int vector)
+static unsigned int startup_msi_irq_w_maskbit(unsigned int vector)
{
- move_msi(vector);
- ack_APIC_irq();
+ startup_msi_irq_wo_maskbit(vector);
+ unmask_MSI_irq(vector);
+ return 0; /* never anything pending */
}
-static unsigned int startup_msi_irq_w_maskbit(unsigned int vector)
+static void shutdown_msi_irq(unsigned int vector)
{
struct msi_desc *entry;
unsigned long flags;
spin_lock_irqsave(&msi_lock, flags);
entry = msi_desc[vector];
- if (!entry || !entry->dev) {
- spin_unlock_irqrestore(&msi_lock, flags);
- return 0;
- }
- entry->msi_attrib.state = 1; /* Mark it active */
+ if (entry && entry->dev)
+ entry->msi_attrib.state = 0; /* Mark it not active */
spin_unlock_irqrestore(&msi_lock, flags);
-
- unmask_MSI_irq(vector);
- return 0; /* never anything pending */
}
-#define shutdown_msi_irq_w_maskbit shutdown_msi_irq
-#define enable_msi_irq_w_maskbit unmask_MSI_irq
-#define disable_msi_irq_w_maskbit mask_MSI_irq
-#define ack_msi_irq_w_maskbit mask_MSI_irq
+static void end_msi_irq_wo_maskbit(unsigned int vector)
+{
+ move_msi(vector);
+ ack_APIC_irq();
+}
static void end_msi_irq_w_maskbit(unsigned int vector)
{
ack_APIC_irq();
}
+static void do_nothing(unsigned int vector)
+{
+}
+
/*
* Interrupt Type for MSI-X PCI/PCI-X/PCI-Express Devices,
* which implement the MSI-X Capability Structure.
static struct hw_interrupt_type msix_irq_type = {
.typename = "PCI-MSI-X",
.startup = startup_msi_irq_w_maskbit,
- .shutdown = shutdown_msi_irq_w_maskbit,
- .enable = enable_msi_irq_w_maskbit,
- .disable = disable_msi_irq_w_maskbit,
- .ack = ack_msi_irq_w_maskbit,
+ .shutdown = shutdown_msi_irq,
+ .enable = unmask_MSI_irq,
+ .disable = mask_MSI_irq,
+ .ack = mask_MSI_irq,
.end = end_msi_irq_w_maskbit,
.set_affinity = set_msi_irq_affinity
};
static struct hw_interrupt_type msi_irq_w_maskbit_type = {
.typename = "PCI-MSI",
.startup = startup_msi_irq_w_maskbit,
- .shutdown = shutdown_msi_irq_w_maskbit,
- .enable = enable_msi_irq_w_maskbit,
- .disable = disable_msi_irq_w_maskbit,
- .ack = ack_msi_irq_w_maskbit,
+ .shutdown = shutdown_msi_irq,
+ .enable = unmask_MSI_irq,
+ .disable = mask_MSI_irq,
+ .ack = mask_MSI_irq,
.end = end_msi_irq_w_maskbit,
.set_affinity = set_msi_irq_affinity
};
static struct hw_interrupt_type msi_irq_wo_maskbit_type = {
.typename = "PCI-MSI",
.startup = startup_msi_irq_wo_maskbit,
- .shutdown = shutdown_msi_irq_wo_maskbit,
- .enable = enable_msi_irq_wo_maskbit,
- .disable = disable_msi_irq_wo_maskbit,
- .ack = ack_msi_irq_wo_maskbit,
+ .shutdown = shutdown_msi_irq,
+ .enable = do_nothing,
+ .disable = do_nothing,
+ .ack = do_nothing,
.end = end_msi_irq_wo_maskbit,
.set_affinity = set_msi_irq_affinity
};
{
struct msi_desc *entry;
- entry = (struct msi_desc*) kmem_cache_alloc(msi_cachep, SLAB_KERNEL);
+ entry = kmem_cache_alloc(msi_cachep, SLAB_KERNEL);
if (!entry)
return NULL;
}
}
-static void release_msi(unsigned int vector)
-{
- struct msi_desc *entry;
- unsigned long flags;
-
- spin_lock_irqsave(&msi_lock, flags);
- entry = msi_desc[vector];
- if (entry && entry->dev)
- entry->msi_attrib.state = 0; /* Mark it not active */
- spin_unlock_irqrestore(&msi_lock, flags);
-}
-
static int msi_free_vector(struct pci_dev* dev, int vector, int reassign)
{
struct msi_desc *entry;
/**
* pci_enable_msix - configure device's MSI-X capability structure
* @dev: pointer to the pci_dev data structure of MSI-X device function
- * @data: pointer to an array of MSI-X entries
+ * @entries: pointer to an array of MSI-X entries
* @nvec: number of MSI-X vectors requested for allocation by device driver
*
* Setup the MSI-X capability structure of device function with the number
#define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
#define PCI_MSIX_FLAGS_BITMASK (1 << 0)
-#define PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET 0
-#define PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET 4
-#define PCI_MSIX_ENTRY_DATA_OFFSET 8
-#define PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET 12
#define PCI_MSIX_ENTRY_SIZE 16
+#define PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET 0
+#define PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET 4
+#define PCI_MSIX_ENTRY_DATA_OFFSET 8
+#define PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET 12
#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
#define msi_lower_address_reg(base) (base + PCI_MSI_ADDRESS_LO)
#define msi_enable(control, num) multi_msi_enable(control, num); \
control |= PCI_MSI_FLAGS_ENABLE
-#define msix_control_reg msi_control_reg
#define msix_table_offset_reg(base) (base + 0x04)
#define msix_pba_offset_reg(base) (base + 0x08)
#define msix_enable(control) control |= PCI_MSIX_FLAGS_ENABLE
char * str = buf;
int i;
int max = 7;
+ u64 start, end;
if (pci_dev->subordinate)
max = DEVICE_COUNT_RESOURCE;
for (i = 0; i < max; i++) {
- str += sprintf(str,"0x%016lx 0x%016lx 0x%016lx\n",
- pci_resource_start(pci_dev,i),
- pci_resource_end(pci_dev,i),
- pci_resource_flags(pci_dev,i));
+ struct resource *res = &pci_dev->resource[i];
+ pci_resource_to_user(pci_dev, i, res, &start, &end);
+ str += sprintf(str,"0x%016llx 0x%016llx 0x%016llx\n",
+ (unsigned long long)start,
+ (unsigned long long)end,
+ (unsigned long long)res->flags);
}
return (str - buf);
}
struct device, kobj));
struct resource *res = (struct resource *)attr->private;
enum pci_mmap_state mmap_type;
+ u64 start, end;
+ int i;
- vma->vm_pgoff += res->start >> PAGE_SHIFT;
+ for (i = 0; i < PCI_ROM_RESOURCE; i++)
+ if (res == &pdev->resource[i])
+ break;
+ if (i >= PCI_ROM_RESOURCE)
+ return -ENODEV;
+
+ /* pci_mmap_page_range() expects the same kind of entry as coming
+ * from /proc/bus/pci/ which is a "user visible" value. If this is
+ * different from the resource itself, arch will do necessary fixup.
+ */
+ pci_resource_to_user(pdev, i, res, &start, &end);
+ vma->vm_pgoff += start >> PAGE_SHIFT;
mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
return pci_mmap_page_range(pdev, vma, mmap_type, 0);
struct pci_bus *child;
child = pci_alloc_child_bus(parent, dev, busnr);
- if (child)
+ if (child) {
+ spin_lock(&pci_bus_lock);
list_add_tail(&child->node, &parent->children);
+ spin_unlock(&pci_bus_lock);
+ }
return child;
}
{
struct pci_bus *child;
int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
- u32 buses;
+ u32 buses, i;
u16 bctl;
pci_read_config_dword(dev, PCI_PRIMARY_BUS, &buses);
return max;
}
- child = pci_alloc_child_bus(bus, dev, busnr);
+ child = pci_add_new_bus(bus, dev, busnr);
if (!child)
return max;
child->primary = buses & 0xFF;
/* Clear errors */
pci_write_config_word(dev, PCI_STATUS, 0xffff);
- child = pci_alloc_child_bus(bus, dev, ++max);
+ /* Prevent assigning a bus number that already exists.
+ * This can happen when a bridge is hot-plugged */
+ if (pci_find_bus(pci_domain_nr(bus), max+1))
+ return max;
+ child = pci_add_new_bus(bus, dev, ++max);
buses = (buses & 0xff000000)
| ((unsigned int)(child->primary) << 0)
| ((unsigned int)(child->secondary) << 8)
* as cards with a PCI-to-PCI bridge can be
* inserted later.
*/
- max += CARDBUS_RESERVE_BUSNR;
+ for (i=0; i<CARDBUS_RESERVE_BUSNR; i++)
+ if (pci_find_bus(pci_domain_nr(bus),
+ max+i+1))
+ break;
+ max += i;
}
/*
* Set the subordinate bus number to its real value.
* and the bus list for fixup functions, etc.
*/
INIT_LIST_HEAD(&dev->global_list);
+ spin_lock(&pci_bus_lock);
list_add_tail(&dev->bus_list, &bus->devices);
+ spin_unlock(&pci_bus_lock);
return dev;
}
pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
goto err_out;
}
+ spin_lock(&pci_bus_lock);
list_add_tail(&b->node, &pci_root_buses);
+ spin_unlock(&pci_bus_lock);
memset(dev, 0, sizeof(*dev));
dev->parent = parent;
b->subordinate = pci_scan_child_bus(b);
- pci_bus_add_devices(b);
-
return b;
sys_create_link_err:
class_dev_reg_err:
device_unregister(dev);
dev_reg_err:
+ spin_lock(&pci_bus_lock);
list_del(&b->node);
+ spin_unlock(&pci_bus_lock);
err_out:
kfree(dev);
kfree(b);
dev->device,
dev->irq);
/* Here should be 7 and not PCI_NUM_RESOURCES as we need to preserve compatibility */
- for(i=0; i<7; i++)
+ for (i=0; i<7; i++) {
+ u64 start, end;
+ pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
seq_printf(m, LONG_FORMAT,
- dev->resource[i].start |
+ ((unsigned long)start) |
(dev->resource[i].flags & PCI_REGION_FLAG_MASK));
- for(i=0; i<7; i++)
+ }
+ for (i=0; i<7; i++) {
+ u64 start, end;
+ pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
seq_printf(m, LONG_FORMAT,
dev->resource[i].start < dev->resource[i].end ?
- dev->resource[i].end - dev->resource[i].start + 1 : 0);
+ (unsigned long)(end - start) + 1 : 0);
+ }
seq_putc(m, '\t');
if (drv)
seq_printf(m, "%s", drv->name);
static void pci_destroy_dev(struct pci_dev *dev)
{
- pci_proc_detach_device(dev);
- pci_remove_sysfs_dev_files(dev);
- device_unregister(&dev->dev);
+ if (!list_empty(&dev->global_list)) {
+ pci_proc_detach_device(dev);
+ pci_remove_sysfs_dev_files(dev);
+ device_unregister(&dev->dev);
+ spin_lock(&pci_bus_lock);
+ list_del(&dev->global_list);
+ dev->global_list.next = dev->global_list.prev = NULL;
+ spin_unlock(&pci_bus_lock);
+ }
/* Remove the device from the device lists, and prevent any further
* list accesses from this device */
spin_lock(&pci_bus_lock);
list_del(&dev->bus_list);
- list_del(&dev->global_list);
dev->bus_list.next = dev->bus_list.prev = NULL;
- dev->global_list.next = dev->global_list.prev = NULL;
spin_unlock(&pci_bus_lock);
pci_free_resources(dev);
for (list = head.next; list;) {
res = list->res;
idx = res - &list->dev->resource[0];
- pci_assign_resource(list->dev, idx);
+ if (pci_assign_resource(list->dev, idx)) {
+ res->start = 0;
+ res->flags = 0;
+ }
tmp = list;
list = list->next;
kfree(tmp);
} /* End __twa_shutdown() */
/* Wrapper for __twa_shutdown */
-static void twa_shutdown(struct device *dev)
+static void twa_shutdown(struct pci_dev *pdev)
{
- struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
__twa_shutdown(tw_dev);
.id_table = twa_pci_tbl,
.probe = twa_probe,
.remove = twa_remove,
- .driver = {
- .shutdown = twa_shutdown
- }
+ .shutdown = twa_shutdown
};
/* This function is called on driver initialization */
} /* End __tw_shutdown() */
/* Wrapper for __tw_shutdown */
-static void tw_shutdown(struct device *dev)
+static void tw_shutdown(struct pci_dev *pdev)
{
- struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
__tw_shutdown(tw_dev);
.id_table = tw_pci_tbl,
.probe = tw_probe,
.remove = tw_remove,
- .driver = {
- .shutdown = tw_shutdown
- }
+ .shutdown = tw_shutdown,
};
/* This function is called on driver initialization */
/**
* ipr_shutdown - Shutdown handler.
- * @dev: device struct
+ * @pdev: pci device struct
*
* This function is invoked upon system shutdown/reboot. It will issue
* an adapter shutdown to the adapter to flush the write cache.
* Return value:
* none
**/
-static void ipr_shutdown(struct device *dev)
+static void ipr_shutdown(struct pci_dev *pdev)
{
- struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(to_pci_dev(dev));
+ struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
unsigned long lock_flags = 0;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
.id_table = ipr_pci_table,
.probe = ipr_probe,
.remove = ipr_remove,
- .driver = {
- .shutdown = ipr_shutdown,
- },
+ .shutdown = ipr_shutdown,
};
/**
}
static void
-megaraid_shutdown(struct device *dev)
+megaraid_shutdown(struct pci_dev *pdev)
{
- struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
adapter_t *adapter = (adapter_t *)host->hostdata;
__megaraid_shutdown(adapter);
.id_table = megaraid_pci_tbl,
.probe = megaraid_probe_one,
.remove = __devexit_p(megaraid_remove_one),
- .driver = {
- .shutdown = megaraid_shutdown,
- },
+ .shutdown = megaraid_shutdown,
};
static int __init megaraid_init(void)
{
struct scsi_host_sg_pool *sgp;
- BUG_ON(index > SG_MEMPOOL_NR);
+ BUG_ON(index >= SG_MEMPOOL_NR);
sgp = scsi_sg_pools + index;
mempool_free(sgl, sgp->pool);
static LIST_HEAD(fput_head);
static void aio_kick_handler(void *);
+static void aio_queue_work(struct kioctx *);
/* aio_setup
* Creates the slab caches used by the aio routines, panic on
* has already been kicked */
if (kiocbIsKicked(iocb)) {
__queue_kicked_iocb(iocb);
+
+ /*
+ * __queue_kicked_iocb will always return 1 here, because
+ * iocb->ki_run_list is empty at this point so it should
+ * be safe to unconditionally queue the context into the
+ * work queue.
+ */
+ aio_queue_work(ctx);
}
}
return ret;
*/
static void do_sync(unsigned long wait)
{
- wakeup_bdflush(0);
+ wakeup_pdflush(0);
sync_inodes(0); /* All mappings, inodes and their blockdevs */
DQUOT_SYNC(NULL);
sync_supers(); /* Write the superblocks */
struct zone **zones;
pg_data_t *pgdat;
- wakeup_bdflush(1024);
+ wakeup_pdflush(1024);
yield();
for_each_pgdat(pgdat) {
struct char_device_struct *cd = NULL, **cp;
int i = major_to_index(major);
- up(&chrdevs_lock);
+ down(&chrdevs_lock);
for (cp = &chrdevs[i]; *cp; cp = &(*cp)->next)
if ((*cp)->major == major &&
(*cp)->baseminor == baseminor &&
* to find a free region that is of my size and has not
* been reserved.
*
- * on succeed, it returns the reservation window to be appended to.
- * failed, return NULL.
*/
-static struct ext3_reserve_window_node *find_next_reservable_window(
+static int find_next_reservable_window(
struct ext3_reserve_window_node *search_head,
- unsigned long size, int *start_block,
+ struct ext3_reserve_window_node *my_rsv,
+ struct super_block * sb, int start_block,
int last_block)
{
struct rb_node *next;
struct ext3_reserve_window_node *rsv, *prev;
int cur;
+ int size = my_rsv->rsv_goal_size;
/* TODO: make the start of the reservation window byte-aligned */
/* cur = *start_block & ~7;*/
- cur = *start_block;
+ cur = start_block;
rsv = search_head;
if (!rsv)
- return NULL;
+ return -1;
while (1) {
if (cur <= rsv->rsv_end)
* space with expected-size (or more)...
*/
if (cur > last_block)
- return NULL; /* fail */
+ return -1; /* fail */
prev = rsv;
next = rb_next(&rsv->rsv_node);
- rsv = list_entry(next, struct ext3_reserve_window_node, rsv_node);
+ rsv = list_entry(next,struct ext3_reserve_window_node,rsv_node);
/*
* Reached the last reservation, we can just append to the
* return the reservation window that we could append to.
* succeed.
*/
- *start_block = cur;
- return prev;
+
+ if ((prev != my_rsv) && (!rsv_is_empty(&my_rsv->rsv_window)))
+ rsv_window_remove(sb, my_rsv);
+
+ /*
+ * Let's book the whole avaliable window for now. We will check the
+ * disk bitmap later and then, if there are free blocks then we adjust
+ * the window size if it's larger than requested.
+ * Otherwise, we will remove this node from the tree next time
+ * call find_next_reservable_window.
+ */
+ my_rsv->rsv_start = cur;
+ my_rsv->rsv_end = cur + size - 1;
+ my_rsv->rsv_alloc_hit = 0;
+
+ if (prev != my_rsv)
+ ext3_rsv_window_add(sb, my_rsv);
+
+ return 0;
}
/**
* @sb: the super block
* @group: the group we are trying to allocate in
* @bitmap_bh: the block group block bitmap
+ *
*/
static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
int goal, struct super_block *sb,
struct ext3_reserve_window_node *search_head;
int group_first_block, group_end_block, start_block;
int first_free_block;
- int reservable_space_start;
- struct ext3_reserve_window_node *prev_rsv;
struct rb_root *fs_rsv_root = &EXT3_SB(sb)->s_rsv_window_root;
unsigned long size;
+ int ret;
+ spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
group_first_block = le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block) +
group * EXT3_BLOCKS_PER_GROUP(sb);
start_block = goal + group_first_block;
size = my_rsv->rsv_goal_size;
+
if (!rsv_is_empty(&my_rsv->rsv_window)) {
/*
* if the old reservation is cross group boundary
my_rsv->rsv_goal_size= size;
}
}
+
+ spin_lock(rsv_lock);
/*
* shift the search start to the window near the goal block
*/
* need to check the bitmap after we found a reservable window.
*/
retry:
- prev_rsv = find_next_reservable_window(search_head, size,
- &start_block, group_end_block);
- if (prev_rsv == NULL)
- goto failed;
- reservable_space_start = start_block;
+ ret = find_next_reservable_window(search_head, my_rsv, sb,
+ start_block, group_end_block);
+
+ if (ret == -1) {
+ if (!rsv_is_empty(&my_rsv->rsv_window))
+ rsv_window_remove(sb, my_rsv);
+ spin_unlock(rsv_lock);
+ return -1;
+ }
+
/*
* On success, find_next_reservable_window() returns the
* reservation window where there is a reservable space after it.
* block. Search start from the start block of the reservable space
* we just found.
*/
+ spin_unlock(rsv_lock);
first_free_block = bitmap_search_next_usable_block(
- reservable_space_start - group_first_block,
+ my_rsv->rsv_start - group_first_block,
bitmap_bh, group_end_block - group_first_block + 1);
if (first_free_block < 0) {
* no free block left on the bitmap, no point
* to reserve the space. return failed.
*/
- goto failed;
+ spin_lock(rsv_lock);
+ if (!rsv_is_empty(&my_rsv->rsv_window))
+ rsv_window_remove(sb, my_rsv);
+ spin_unlock(rsv_lock);
+ return -1; /* failed */
}
+
start_block = first_free_block + group_first_block;
/*
* check if the first free block is within the
- * free space we just found
+ * free space we just reserved
*/
- if ((start_block >= reservable_space_start) &&
- (start_block < reservable_space_start + size))
- goto found_rsv_window;
+ if (start_block >= my_rsv->rsv_start && start_block < my_rsv->rsv_end)
+ return 0; /* success */
/*
* if the first free bit we found is out of the reservable space
- * this means there is no free block on the reservable space
- * we should continue search for next reservable space,
+ * continue search for next reservable space,
* start from where the free block is,
* we also shift the list head to where we stopped last time
*/
- search_head = prev_rsv;
+ search_head = my_rsv;
+ spin_lock(rsv_lock);
goto retry;
-
-found_rsv_window:
- /*
- * great! the reservable space contains some free blocks.
- * if the search returns that we should add the new
- * window just next to where the old window, we don't
- * need to remove the old window first then add it to the
- * same place, just update the new start and new end.
- */
- if (my_rsv != prev_rsv) {
- if (!rsv_is_empty(&my_rsv->rsv_window))
- rsv_window_remove(sb, my_rsv);
- }
- my_rsv->rsv_start = reservable_space_start;
- my_rsv->rsv_end = my_rsv->rsv_start + size - 1;
- my_rsv->rsv_alloc_hit = 0;
- if (my_rsv != prev_rsv) {
- ext3_rsv_window_add(sb, my_rsv);
- }
- return 0; /* succeed */
-failed:
- /*
- * failed to find a new reservation window in the current
- * group, remove the current(stale) reservation window
- * if there is any
- */
- if (!rsv_is_empty(&my_rsv->rsv_window))
- rsv_window_remove(sb, my_rsv);
- return -1; /* failed */
}
/*
int goal, struct ext3_reserve_window_node * my_rsv,
int *errp)
{
- spinlock_t *rsv_lock;
unsigned long group_first_block;
int ret = 0;
int fatal;
ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh, goal, NULL);
goto out;
}
- rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
/*
* goal is a group relative block number (if there is a goal)
* 0 < goal < EXT3_BLOCKS_PER_GROUP(sb)
* then we could go to allocate from the reservation window directly.
*/
while (1) {
- struct ext3_reserve_window rsv_copy;
-
- rsv_copy._rsv_start = my_rsv->rsv_start;
- rsv_copy._rsv_end = my_rsv->rsv_end;
-
- if (rsv_is_empty(&rsv_copy) || (ret < 0) ||
- !goal_in_my_reservation(&rsv_copy, goal, group, sb)) {
- spin_lock(rsv_lock);
+ if (rsv_is_empty(&my_rsv->rsv_window) || (ret < 0) ||
+ !goal_in_my_reservation(&my_rsv->rsv_window, goal, group, sb)) {
ret = alloc_new_reservation(my_rsv, goal, sb,
group, bitmap_bh);
- rsv_copy._rsv_start = my_rsv->rsv_start;
- rsv_copy._rsv_end = my_rsv->rsv_end;
- spin_unlock(rsv_lock);
if (ret < 0)
break; /* failed */
- if (!goal_in_my_reservation(&rsv_copy, goal, group, sb))
+ if (!goal_in_my_reservation(&my_rsv->rsv_window, goal, group, sb))
goal = -1;
}
- if ((rsv_copy._rsv_start >= group_first_block + EXT3_BLOCKS_PER_GROUP(sb))
- || (rsv_copy._rsv_end < group_first_block))
+ if ((my_rsv->rsv_start >= group_first_block + EXT3_BLOCKS_PER_GROUP(sb))
+ || (my_rsv->rsv_end < group_first_block))
BUG();
ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh, goal,
- &rsv_copy);
+ &my_rsv->rsv_window);
if (ret >= 0) {
my_rsv->rsv_alloc_hit++;
break; /* succeed */
/* if we are the last writer on the inode, drop the block reservation */
if ((filp->f_mode & FMODE_WRITE) &&
(atomic_read(&inode->i_writecount) == 1))
+ {
+ down(&EXT3_I(inode)->truncate_sem);
ext3_discard_reservation(inode);
+ up(&EXT3_I(inode)->truncate_sem);
+ }
if (is_dx(inode) && filp->private_data)
ext3_htree_free_dir_info(filp->private_data);
"for remount\n");
return 0;
}
- match_int(&args[0], &option);
+ if (match_int(&args[0], &option) != 0)
+ return 0;
*n_blocks_count = option;
break;
case Opt_nobh:
#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
-#include <linux/xattr_acl.h>
+#include <linux/posix_acl_xattr.h>
#include <linux/nfsacl.h>
#define NFSDBG_FACILITY NFSDBG_PROC
struct posix_acl *acl;
int type, error = 0;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
struct posix_acl *acl;
int type, error;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
struct inode *inode = dentry->d_inode;
int type;
- if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0)
+ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0)
type = ACL_TYPE_ACCESS;
- else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0)
+ else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0)
type = ACL_TYPE_DEFAULT;
else
return -EOPNOTSUPP;
#include <linux/nfsd/nfsfh.h>
#include <linux/quotaops.h>
#include <linux/dnotify.h>
-#include <linux/xattr_acl.h>
#include <linux/posix_acl.h>
-#ifdef CONFIG_NFSD_V4
#include <linux/posix_acl_xattr.h>
+#ifdef CONFIG_NFSD_V4
#include <linux/xattr.h>
#include <linux/nfs4.h>
#include <linux/nfs4_acl.h>
return ERR_PTR(-EOPNOTSUPP);
switch(type) {
case ACL_TYPE_ACCESS:
- name = XATTR_NAME_ACL_ACCESS;
+ name = POSIX_ACL_XATTR_ACCESS;
break;
case ACL_TYPE_DEFAULT:
- name = XATTR_NAME_ACL_DEFAULT;
+ name = POSIX_ACL_XATTR_DEFAULT;
break;
default:
return ERR_PTR(-EOPNOTSUPP);
return -EOPNOTSUPP;
switch(type) {
case ACL_TYPE_ACCESS:
- name = XATTR_NAME_ACL_ACCESS;
+ name = POSIX_ACL_XATTR_ACCESS;
break;
case ACL_TYPE_DEFAULT:
- name = XATTR_NAME_ACL_DEFAULT;
+ name = POSIX_ACL_XATTR_DEFAULT;
break;
default:
return -EOPNOTSUPP;
}
if (acl && acl->a_count) {
- size = xattr_acl_size(acl->a_count);
+ size = posix_acl_xattr_size(acl->a_count);
value = kmalloc(size, GFP_KERNEL);
if (!value)
return -ENOMEM;
char *nameptr;
uint8_t lfi;
uint16_t liu;
- loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+ loff_t size;
kernel_lb_addr bloc, eloc;
uint32_t extoffset, elen, offset;
struct buffer_head *bh = NULL;
if (!dir)
return NULL;
+ size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+
f_pos = (udf_ext0_offset(dir) >> 2);
fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
typedef int (*acpi_op_match) (struct acpi_device *device,
struct acpi_driver *driver);
+struct acpi_bus_ops {
+ u32 acpi_op_add:1;
+ u32 acpi_op_remove:1;
+ u32 acpi_op_lock:1;
+ u32 acpi_op_start:1;
+ u32 acpi_op_stop:1;
+ u32 acpi_op_suspend:1;
+ u32 acpi_op_resume:1;
+ u32 acpi_op_scan:1;
+ u32 acpi_op_bind:1;
+ u32 acpi_op_unbind:1;
+ u32 acpi_op_match:1;
+ u32 reserved:21;
+};
+
struct acpi_device_ops {
acpi_op_add add;
acpi_op_remove remove;
int acpi_bus_receive_event (struct acpi_bus_event *event);
int acpi_bus_register_driver (struct acpi_driver *driver);
int acpi_bus_unregister_driver (struct acpi_driver *driver);
-int acpi_bus_scan (struct acpi_device *start);
int acpi_bus_add (struct acpi_device **child, struct acpi_device *parent,
acpi_handle handle, int type);
+int acpi_bus_start (struct acpi_device *device);
int acpi_match_ids (struct acpi_device *device, char *ids);
struct pci_bus;
+acpi_status acpi_get_pci_id (acpi_handle handle, struct acpi_pci_id *id);
int acpi_pci_bind (struct acpi_device *device);
int acpi_pci_unbind (struct acpi_device *device);
int acpi_pci_bind_root (struct acpi_device *device, struct acpi_pci_id *id, struct pci_bus *bus);
/* Nothing to do. */
}
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ unsigned long cacheline_size;
+ u8 byte;
+
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+ if (byte == 0)
+ cacheline_size = 1024;
+ else
+ cacheline_size = (int) byte * 4;
+
+ *strat = PCI_DMA_BURST_BOUNDARY;
+ *strategy_parameter = cacheline_size;
+}
+#endif
+
/* TODO: integrate with include/asm-generic/pci.h ? */
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
--- /dev/null
+/* linux/include/asm-arm/arch-s3c2410/audio.h
+ *
+ * (c) 2004-2005 Simtec Electronics
+ * http://www.simtec.co.uk/products/SWLINUX/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX - Audio platfrom_device info
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Changelog:
+ * 20-Nov-2004 BJD Created file
+ * 07-Mar-2005 BJD Added suspend/resume calls
+*/
+
+#ifndef __ASM_ARCH_AUDIO_H
+#define __ASM_ARCH_AUDIO_H __FILE__
+
+/* struct s3c24xx_iis_ops
+ *
+ * called from the s3c24xx audio core to deal with the architecture
+ * or the codec's setup and control.
+ *
+ * the pointer to itself is passed through in case the caller wants to
+ * embed this in an larger structure for easy reference to it's context.
+*/
+
+struct s3c24xx_iis_ops {
+ struct module *owner;
+
+ int (*startup)(struct s3c24xx_iis_ops *me);
+ void (*shutdown)(struct s3c24xx_iis_ops *me);
+ int (*suspend)(struct s3c24xx_iis_ops *me);
+ int (*resume)(struct s3c24xx_iis_ops *me);
+
+ int (*open)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm);
+ int (*close)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm);
+ int (*prepare)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm, snd_pcm_runtime_t *rt);
+};
+
+struct s3c24xx_platdata_iis {
+ const char *codec_clk;
+ struct s3c24xx_iis_ops *ops;
+ int (*match_dev)(struct device *dev);
+};
+
+#endif /* __ASM_ARCH_AUDIO_H */
#define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
*/
#define PCI_DMA_BUS_IS_PHYS (1)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
/*
* These are pretty much arbitary with the CoMEM implementation.
* We have the whole address space to ourselves.
{
}
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
#endif /* __KERNEL__ */
/* implement the pci_ DMA API in terms of the generic device dma_ one */
}
extern void __init iosapic_system_init (int pcat_compat);
-extern void __init iosapic_init (unsigned long address,
+extern int __devinit iosapic_init (unsigned long address,
unsigned int gsi_base);
+#ifdef CONFIG_HOTPLUG
+extern int iosapic_remove (unsigned int gsi_base);
+#endif /* CONFIG_HOTPLUG */
extern int gsi_to_vector (unsigned int gsi);
extern int gsi_to_irq (unsigned int gsi);
extern void iosapic_enable_intr (unsigned int vector);
extern void iosapic_pci_fixup (int);
#ifdef CONFIG_NUMA
-extern void __init map_iosapic_to_node (unsigned int, int);
+extern void __devinit map_iosapic_to_node (unsigned int, int);
#endif
#else
#define iosapic_system_init(pcat_compat) do { } while (0)
-#define iosapic_init(address,gsi_base) do { } while (0)
+#define iosapic_init(address,gsi_base) (-EINVAL)
+#ifdef CONFIG_HOTPLUG
+#define iosapic_remove(gsi_base) (-ENODEV)
+#endif /* CONFIG_HOTPLUG */
#define iosapic_register_intr(gsi,polarity,trigger) (gsi)
#define iosapic_unregister_intr(irq) do { } while (0)
#define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger) do { } while (0)
#define sg_dma_len(sg) ((sg)->dma_length)
#define sg_dma_address(sg) ((sg)->dma_address)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ unsigned long cacheline_size;
+ u8 byte;
+
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+ if (byte == 0)
+ cacheline_size = 1024;
+ else
+ cacheline_size = (int) byte * 4;
+
+ *strat = PCI_DMA_BURST_MULTIPLE;
+ *strategy_parameter = cacheline_size;
+}
+#endif
+
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
extern void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev,
dma64_addr_t dma_addr, size_t len, int direction);
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
extern void pcibios_resource_to_bus(struct pci_dev *dev,
struct pci_bus_region *region, struct resource *res);
/* export the pci_ DMA API in terms of the dma_ one */
#include <asm-generic/pci-dma-compat.h>
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ unsigned long cacheline_size;
+ u8 byte;
+
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+ if (byte == 0)
+ cacheline_size = 1024;
+ else
+ cacheline_size = (int) byte * 4;
+
+ *strat = PCI_DMA_BURST_MULTIPLE;
+ *strategy_parameter = cacheline_size;
+}
+#endif
+
extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
#define pci_unmap_len(PTR, LEN_NAME) (0)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
/*
* At present there are very few 32-bit PPC machines that can have
* memory above the 4GB point, and we don't support that.
unsigned long size,
pgprot_t prot);
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc,
+ u64 *start, u64 *end);
+
+
#endif /* __KERNEL__ */
#endif /* __PPC_PCI_H */
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
}
-#if 0
static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value)
{
__u16 result;
return result;
}
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 value)
-{
- __u64 result;
-#error implement me
-}
-
#define __arch__swab16(x) ___arch__swab16(x)
#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab64(x) ___arch__swab64(x)
-
-#endif
/* The same, but returns converted value from the location pointer by addr. */
#define __arch__swab16p(addr) ld_le16(addr)
return 0;
}
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ unsigned long cacheline_size;
+ u8 byte;
+
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+ if (byte == 0)
+ cacheline_size = 1024;
+ else
+ cacheline_size = (int) byte * 4;
+
+ *strat = PCI_DMA_BURST_MULTIPLE;
+ *strategy_parameter = cacheline_size;
+}
+#endif
+
extern int pci_domain_nr(struct pci_bus *bus);
/* Decide whether to display the domain number in /proc */
unsigned long size,
pgprot_t prot);
+#ifdef CONFIG_PPC_MULTIPLATFORM
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc,
+ u64 *start, u64 *end);
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
#endif /* __KERNEL__ */
#define sg_dma_address(sg) (virt_to_bus((sg)->dma_address))
#define sg_dma_len(sg) ((sg)->length)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
/* Board-specific fixup routines. */
extern void pcibios_fixup(void);
extern void pcibios_fixup_irqs(void);
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->length)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
/* Board-specific fixup routines. */
extern void pcibios_fixup(void);
extern void pcibios_fixup_irqs(void);
#define pci_dac_dma_supported(dev, mask) (0)
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}
return (dma_addr == PCI_DMA_ERROR_CODE);
}
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ unsigned long cacheline_size;
+ u8 byte;
+
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+ if (byte == 0)
+ cacheline_size = 1024;
+ else
+ cacheline_size = (int) byte * 4;
+
+ *strat = PCI_DMA_BURST_BOUNDARY;
+ *strategy_parameter = cacheline_size;
+}
+#endif
+
/* Return the index of the PCI controller for device PDEV. */
extern int pci_domain_nr(struct pci_bus *bus);
pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
dma_addr_t dma_addr);
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}
flush_write_buffers();
}
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
/* PCI MMCONFIG */
+/* Defined in PCI Firmware Specification 3.0 */
+struct acpi_table_mcfg_config {
+ u32 base_address;
+ u32 base_reserved;
+ u16 pci_segment_group_number;
+ u8 start_bus_number;
+ u8 end_bus_number;
+ u8 reserved[4];
+} __attribute__ ((packed));
struct acpi_table_mcfg {
struct acpi_table_header header;
u8 reserved[8];
- u32 base_address;
- u32 base_reserved;
+ struct acpi_table_mcfg_config config[0];
} __attribute__ ((packed));
/* Table Handlers */
int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
+int acpi_parse_mcfg (unsigned long phys_addr, unsigned long size);
void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr);
void acpi_table_print_madt_entry (acpi_table_entry_header *madt);
void acpi_table_print_srat_entry (acpi_table_entry_header *srat);
int acpi_unmap_lsapic(int cpu);
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
+int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
+
extern int acpi_mp_config;
-extern u32 pci_mmcfg_base_addr;
+extern struct acpi_table_mcfg_config *pci_mmcfg_config;
+extern int pci_mmcfg_config_num;
extern int sbf_port ;
void put_io_context(struct io_context *ioc);
void exit_io_context(void);
+struct io_context *current_io_context(int gfp_flags);
struct io_context *get_io_context(int gfp_flags);
void copy_io_context(struct io_context **pdst, struct io_context **psrc);
void swap_io_context(struct io_context **ioc1, struct io_context **ioc2);
#endif /* OPTIMIZE */
-static __inline__ __const__ __u32 __fswahw32(__u32 x)
+static inline __u32 __fswahw32(__u32 x)
{
return __arch__swahw32(x);
}
-static __inline__ __u32 __swahw32p(__u32 *x)
+
+static inline __u32 __swahw32p(__u32 *x)
{
return __arch__swahw32p(x);
}
-static __inline__ void __swahw32s(__u32 *addr)
+
+static inline void __swahw32s(__u32 *addr)
{
__arch__swahw32s(addr);
}
-
-static __inline__ __const__ __u32 __fswahb32(__u32 x)
+static inline __u32 __fswahb32(__u32 x)
{
return __arch__swahb32(x);
}
-static __inline__ __u32 __swahb32p(__u32 *x)
+
+static inline __u32 __swahb32p(__u32 *x)
{
return __arch__swahb32p(x);
}
-static __inline__ void __swahb32s(__u32 *addr)
+
+static inline void __swahb32s(__u32 *addr)
{
__arch__swahb32s(addr);
}
#define _LINUX_I2C_DEV_H
#include <linux/types.h>
+#include <linux/compiler.h>
/* Some IOCTL commands are defined in <linux/i2c.h> */
/* Note: 10-bit addresses are NOT supported! */
extern int noirqdebug_setup(char *str);
extern fastcall int handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
- struct irqaction *action);
+ struct irqaction *action);
extern fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs);
-extern void note_interrupt(unsigned int irq, irq_desc_t *desc, int action_ret);
+extern void note_interrupt(unsigned int irq, irq_desc_t *desc,
+ int action_ret, struct pt_regs *regs);
extern int can_request_irq(unsigned int irq, unsigned long irqflags);
extern void init_irq_proc(void);
/* Generic PCI functions used internally */
extern struct pci_bus *pci_find_bus(int domain, int busnr);
+void pci_bus_add_devices(struct pci_bus *bus);
struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata);
static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata)
{
- return pci_scan_bus_parented(NULL, bus, ops, sysdata);
+ struct pci_bus *root_bus;
+ root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata);
+ if (root_bus)
+ pci_bus_add_devices(root_bus);
+ return root_bus;
}
int pci_scan_slot(struct pci_bus *bus, int devfn);
struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn);
unsigned int pci_scan_child_bus(struct pci_bus *bus);
void pci_bus_add_device(struct pci_dev *dev);
-void pci_bus_add_devices(struct pci_bus *bus);
void pci_name_device(struct pci_dev *dev);
char *pci_class_name(u32 class);
void pci_read_bridge_bases(struct pci_bus *child);
#define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
#define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
+enum pci_dma_burst_strategy {
+ PCI_DMA_BURST_INFINITY, /* make bursts as large as possible,
+ strategy_parameter is N/A */
+ PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter
+ byte boundaries */
+ PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of
+ strategy_parameter byte boundaries */
+};
+
#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
extern struct pci_dev *isa_bridge;
#endif
}
#endif
+#define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)
+
#endif /* !CONFIG_PCI */
/* these helpers provide future and backwards compatibility
#define pci_pretty_name(dev) ""
#endif
+
+/* Some archs don't want to expose struct resource to userland as-is
+ * in sysfs and /proc
+ */
+#ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER
+static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc, u64 *start, u64 *end)
+{
+ *start = rsrc->start;
+ *end = rsrc->end;
+}
+#endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */
+
+
/*
* The world is not perfect and supplies us with broken PCI devices.
* For at least a part of these bugs we need a work-around, so both
#define PCI_BASE_CLASS_SYSTEM 0x08
#define PCI_CLASS_SYSTEM_PIC 0x0800
+#define PCI_CLASS_SYSTEM_PIC_IOAPIC 0x080010
+#define PCI_CLASS_SYSTEM_PIC_IOXAPIC 0x080020
#define PCI_CLASS_SYSTEM_DMA 0x0801
#define PCI_CLASS_SYSTEM_TIMER 0x0802
#define PCI_CLASS_SYSTEM_RTC 0x0803
#ifndef __LINUX_USB_CH9_H
#define __LINUX_USB_CH9_H
-#include <asm/types.h> /* __u8 etc */
+#include <linux/types.h> /* __u8 etc */
/*-------------------------------------------------------------------------*/
__le16 wMaxPacketSize;
__u8 bInterval;
- // NOTE: these two are _only_ in audio endpoints.
- // use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof.
+ /* NOTE: these two are _only_ in audio endpoints. */
+ /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
__u8 bRefresh;
__u8 bSynchAddress;
} __attribute__ ((packed));
/* Vendor-specific formats */
#define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
+#define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P','W','C','1') /* pwc older webcam */
+#define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
/*
* F O R M A T E N U M E R A T I O N
/*
* mm/page-writeback.c
*/
-int wakeup_bdflush(long nr_pages);
+int wakeup_pdflush(long nr_pages);
void laptop_io_completion(void);
void laptop_sync_completion(void);
void throttle_vm_writeout(void);
+++ /dev/null
-/*
- File: linux/xattr_acl.h
-
- (extended attribute representation of access control lists)
-
- (C) 2000 Andreas Gruenbacher, <a.gruenbacher@computer.org>
-*/
-
-#ifndef _LINUX_XATTR_ACL_H
-#define _LINUX_XATTR_ACL_H
-
-#include <linux/posix_acl.h>
-
-#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
-#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
-
-#define XATTR_ACL_VERSION 0x0002
-
-typedef struct {
- __u16 e_tag;
- __u16 e_perm;
- __u32 e_id;
-} xattr_acl_entry;
-
-typedef struct {
- __u32 a_version;
- xattr_acl_entry a_entries[0];
-} xattr_acl_header;
-
-static inline size_t xattr_acl_size(int count)
-{
- return sizeof(xattr_acl_header) + count * sizeof(xattr_acl_entry);
-}
-
-static inline int xattr_acl_count(size_t size)
-{
- if (size < sizeof(xattr_acl_header))
- return -1;
- size -= sizeof(xattr_acl_header);
- if (size % sizeof(xattr_acl_entry))
- return -1;
- return size / sizeof(xattr_acl_entry);
-}
-
-struct posix_acl * posix_acl_from_xattr(const void *value, size_t size);
-int posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size);
-
-
-
-#endif /* _LINUX_XATTR_ACL_H */
-/*
+/* $Id: tuner.h,v 1.33 2005/06/21 14:58:08 mkrufky Exp $
+ *
tuner.h - definition for different tuners
Copyright (C) 1997 Markus Schroeder (schroedm@uni-duesseldorf.de)
#ifndef _TUNER_H
#define _TUNER_H
+#include <linux/videodev2.h>
+
#include "id.h"
#define ADDR_UNSET (255)
#define TUNER_LG_NTSC_TAPE 47
#define TUNER_TNF_8831BGFF 48
-#define TUNER_MICROTUNE_4042FI5 49 /* FusionHDTV 3 Gold - 4042 FI5 (3X 8147) */
+#define TUNER_MICROTUNE_4042FI5 49 /* DViCO FusionHDTV 3 Gold-Q - 4042 FI5 (3X 8147) */
#define TUNER_TCL_2002N 50
#define TUNER_PHILIPS_FM1256_IH3 51
#define TUNER_LG_PAL_TAPE 55 /* Hauppauge PVR-150 PAL */
#define TUNER_PHILIPS_FQ1216AME_MK4 56 /* Hauppauge PVR-150 PAL */
-#define TUNER_PHILIPS_FQ1236A_MK4 57 /* Hauppauge PVR-500MCE NTSC */
+#define TUNER_PHILIPS_FQ1236A_MK4 57 /* Hauppauge PVR-500MCE NTSC */
#define TUNER_YMEC_TVF_8531MF 58
#define TUNER_YMEC_TVF_5533MF 59 /* Pixelview Pro Ultra NTSC */
-#define TUNER_THOMSON_DTT7611 60
+#define TUNER_THOMSON_DTT7611 60 /* DViCO FusionHDTV 3 Gold-T */
#define TUNER_TENA_9533_DI 61
+
#define TUNER_TEA5767 62 /* Only FM Radio Tuner */
+#define TUNER_PHILIPS_FMD1216ME_MK3 63
#define TEA5767_TUNER_NAME "Philips TEA5767HN FM Radio"
-#define TUNER_THOMSON_DTT7611 60
-
#define NOTUNER 0
#define PAL 1 /* PAL_BG */
#define PAL_I 2
unsigned char i2c_easy_mode[2];
unsigned char i2c_set_freq[8];
+ /* used to keep track of audmode */
+ unsigned int audmode;
+
/* function ptrs */
void (*tv_freq)(struct i2c_client *c, unsigned int freq);
void (*radio_freq)(struct i2c_client *c, unsigned int freq);
int (*has_signal)(struct i2c_client *c);
int (*is_stereo)(struct i2c_client *c);
+ int (*set_tuner)(struct i2c_client *c, struct v4l2_tuner *v);
};
extern unsigned int tuner_debug;
extern int microtune_init(struct i2c_client *c);
extern int tda8290_init(struct i2c_client *c);
+extern int tea5767_tuner_init(struct i2c_client *c);
extern int default_tuner_init(struct i2c_client *c);
#define tuner_warn(fmt, arg...) \
numa_default_policy();
unlock_kernel();
preempt_enable_no_resched();
+
+ /*
+ * The boot idle thread must execute schedule()
+ * at least one to get things moving:
+ */
+ schedule();
+
cpu_idle();
}
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/interrupt.h>
+#include <linux/delay.h>
/*
* Autodetection depends on the fact that any interrupt that
*/
unsigned long probe_irq_on(void)
{
- unsigned long val, delay;
+ unsigned long val;
irq_desc_t *desc;
unsigned int i;
}
/* Wait for longstanding interrupts to trigger. */
- for (delay = jiffies + HZ/50; time_after(delay, jiffies); )
- /* about 20ms delay */ barrier();
+ msleep(20);
/*
* enable any unassigned irqs
/*
* Wait for spurious interrupts to trigger
*/
- for (delay = jiffies + HZ/10; time_after(delay, jiffies); )
- /* about 100ms delay */ barrier();
+ msleep(100);
/*
* Now filter out any obviously spurious interrupts
spin_lock(&desc->lock);
if (!noirqdebug)
- note_interrupt(irq, desc, action_ret);
+ note_interrupt(irq, desc, action_ret, regs);
if (likely(!(desc->status & IRQ_PENDING)))
break;
desc->status &= ~IRQ_PENDING;
#include <linux/kallsyms.h>
#include <linux/interrupt.h>
+static int irqfixup;
+
+/*
+ * Recovery handler for misrouted interrupts.
+ */
+
+static int misrouted_irq(int irq, struct pt_regs *regs)
+{
+ int i;
+ irq_desc_t *desc;
+ int ok = 0;
+ int work = 0; /* Did we do work for a real IRQ */
+
+ for(i = 1; i < NR_IRQS; i++) {
+ struct irqaction *action;
+
+ if (i == irq) /* Already tried */
+ continue;
+ desc = &irq_desc[i];
+ spin_lock(&desc->lock);
+ action = desc->action;
+ /* Already running on another processor */
+ if (desc->status & IRQ_INPROGRESS) {
+ /*
+ * Already running: If it is shared get the other
+ * CPU to go looking for our mystery interrupt too
+ */
+ if (desc->action && (desc->action->flags & SA_SHIRQ))
+ desc->status |= IRQ_PENDING;
+ spin_unlock(&desc->lock);
+ continue;
+ }
+ /* Honour the normal IRQ locking */
+ desc->status |= IRQ_INPROGRESS;
+ spin_unlock(&desc->lock);
+ while (action) {
+ /* Only shared IRQ handlers are safe to call */
+ if (action->flags & SA_SHIRQ) {
+ if (action->handler(i, action->dev_id, regs) ==
+ IRQ_HANDLED)
+ ok = 1;
+ }
+ action = action->next;
+ }
+ local_irq_disable();
+ /* Now clean up the flags */
+ spin_lock(&desc->lock);
+ action = desc->action;
+
+ /*
+ * While we were looking for a fixup someone queued a real
+ * IRQ clashing with our walk
+ */
+
+ while ((desc->status & IRQ_PENDING) && action) {
+ /*
+ * Perform real IRQ processing for the IRQ we deferred
+ */
+ work = 1;
+ spin_unlock(&desc->lock);
+ handle_IRQ_event(i, regs, action);
+ spin_lock(&desc->lock);
+ desc->status &= ~IRQ_PENDING;
+ }
+ desc->status &= ~IRQ_INPROGRESS;
+ /*
+ * If we did actual work for the real IRQ line we must let the
+ * IRQ controller clean up too
+ */
+ if(work)
+ desc->handler->end(i);
+ spin_unlock(&desc->lock);
+ }
+ /* So the caller can adjust the irq error counts */
+ return ok;
+}
+
/*
* If 99,900 of the previous 100,000 interrupts have not been handled
* then assume that the IRQ is stuck in some manner. Drop a diagnostic
printk(KERN_ERR "irq event %d: bogus return value %x\n",
irq, action_ret);
} else {
- printk(KERN_ERR "irq %d: nobody cared!\n", irq);
+ printk(KERN_ERR "irq %d: nobody cared (try booting with "
+ "the \"irqpoll\" option)\n", irq);
}
dump_stack();
printk(KERN_ERR "handlers:\n");
}
}
-void note_interrupt(unsigned int irq, irq_desc_t *desc, irqreturn_t action_ret)
+void note_interrupt(unsigned int irq, irq_desc_t *desc, irqreturn_t action_ret,
+ struct pt_regs *regs)
{
if (action_ret != IRQ_HANDLED) {
desc->irqs_unhandled++;
report_bad_irq(irq, desc, action_ret);
}
+ if (unlikely(irqfixup)) {
+ /* Don't punish working computers */
+ if ((irqfixup == 2 && irq == 0) || action_ret == IRQ_NONE) {
+ int ok = misrouted_irq(irq, regs);
+ if (action_ret == IRQ_NONE)
+ desc->irqs_unhandled -= ok;
+ }
+ }
+
desc->irq_count++;
if (desc->irq_count < 100000)
return;
__setup("noirqdebug", noirqdebug_setup);
+static int __init irqfixup_setup(char *str)
+{
+ irqfixup = 1;
+ printk(KERN_WARNING "Misrouted IRQ fixup support enabled.\n");
+ printk(KERN_WARNING "This may impact system performance.\n");
+ return 1;
+}
+
+__setup("irqfixup", irqfixup_setup);
+
+static int __init irqpoll_setup(char *str)
+{
+ irqfixup = 2;
+ printk(KERN_WARNING "Misrouted IRQ fixup and polling support "
+ "enabled\n");
+ printk(KERN_WARNING "This may significantly impact system "
+ "performance\n");
+ return 1;
+}
+
+__setup("irqpoll", irqpoll_setup);
switch (which) {
case ITIMER_REAL:
+again:
spin_lock_irq(&tsk->sighand->siglock);
interval = tsk->signal->it_real_incr;
val = it_real_value(tsk->signal);
- if (val)
- del_timer_sync(&tsk->signal->real_timer);
+ /* We are sharing ->siglock with it_real_fn() */
+ if (try_to_del_timer_sync(&tsk->signal->real_timer) < 0) {
+ spin_unlock_irq(&tsk->sighand->siglock);
+ goto again;
+ }
tsk->signal->it_real_incr =
timeval_to_jiffies(&value->it_interval);
it_real_arm(tsk, timeval_to_jiffies(&value->it_value));
static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry,
unsigned long nr_segments,
- struct kexec_segment *segments)
+ struct kexec_segment __user *segments)
{
int result;
struct kimage *image;
}
}
- return 0;
+ return NULL;
}
static struct page *kimage_alloc_page(struct kimage *image,
/* Allocate a page, if we run out of memory give up */
page = kimage_alloc_pages(gfp_mask, 0);
if (!page)
- return 0;
+ return NULL;
/* If the page cannot be used file it away */
if (page_to_pfn(page) >
(KEXEC_SOURCE_MEMORY_LIMIT >> PAGE_SHIFT)) {
unsigned long maddr;
unsigned long ubytes, mbytes;
int result;
- unsigned char *buf;
+ unsigned char __user *buf;
result = 0;
buf = segment->buf;
unsigned long maddr;
unsigned long ubytes, mbytes;
int result;
- unsigned char *buf;
+ unsigned char __user *buf;
result = 0;
buf = segment->buf;
read_unlock(&tasklist_lock);
}
+/**
+ * init_idle - set up an idle thread for a given CPU
+ * @idle: task in question
+ * @cpu: cpu the idle task belongs to
+ *
+ * NOTE: this function does not set the idle thread's NEED_RESCHED
+ * flag, to make booting more robust.
+ */
void __devinit init_idle(task_t *idle, int cpu)
{
runqueue_t *rq = cpu_rq(cpu);
#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
idle->oncpu = 1;
#endif
- set_tsk_need_resched(idle);
spin_unlock_irqrestore(&rq->lock, flags);
/* Set the preempt count _outside_ the spinlocks! */
* the whole world. Returns 0 if a pdflush thread was dispatched. Returns
* -1 if all pdflush threads were busy.
*/
-int wakeup_bdflush(long nr_pages)
+int wakeup_pdflush(long nr_pages)
{
if (nr_pages == 0) {
struct writeback_state wbs;
* writeout. So in laptop mode, write out the whole world.
*/
if (total_scanned > sc.swap_cluster_max + sc.swap_cluster_max/2) {
- wakeup_bdflush(laptop_mode ? 0 : total_scanned);
+ wakeup_pdflush(laptop_mode ? 0 : total_scanned);
sc.may_writepage = 1;
}
projects / linux-2.6-microblaze.git / commitdiff