OpenCloudOS-Kernel/drivers/media/pci/bt8xx/bttv-driver.c

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/*
bttv - Bt848 frame grabber driver
Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
& Marcus Metzler <mocm@thp.uni-koeln.de>
(c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
some v4l2 code lines are taken from Justin's bttv2 driver which is
(c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
V4L1 removal from:
(c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Fixes to be fully V4L2 compliant by
(c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
2007-01-19 03:17:39 +08:00
Cropping and overscan support
Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
Sponsored by OPQ Systems AB
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. 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.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/kdev_t.h>
#include "bttvp.h"
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
[media] include/media: split I2C headers from V4L2 core Currently, include/media is messy, as it contains both the V4L2 core headers and some driver-specific headers on the same place. That makes harder to identify what core headers should be documented and what headers belong to I2C drivers that are included only by bridge/main drivers that would require the functions provided by them. Let's move those i2c specific files to its own subdirectory. The files to move were produced via the following script: mkdir include/media/i2c (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/*/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) for i in include/media/*.h; do n=`basename $i`; (for j in $(git grep -l $n); do dirname $j; done)|sort|uniq|grep -ve '^.$' > list; num=$(wc -l list|cut -d' ' -f1); if [ $num == 1 ]; then if [ "`grep i2c list`" != "" ]; then git mv $i include/media/i2c; fi; fi; done And the references corrected via this script: MAIN_DIR="media/" PREV_DIR="media/" DIRS="i2c/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Merged Sakari Ailus patch that moves smiapp.h to include/media/i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-10 22:01:44 +08:00
#include <media/i2c/tvaudio.h>
[media] include/media: move driver interface headers to a separate dir Let's not mix headers used by the core with those headers that are needed by some driver-specific interface header. The headers used on drivers were manually moved using: mkdir include/media/drv-intf/ git mv include/media/cx2341x.h include/media/cx25840.h \ include/media/exynos-fimc.h include/media/msp3400.h \ include/media/s3c_camif.h include/media/saa7146.h \ include/media/saa7146_vv.h include/media/sh_mobile_ceu.h \ include/media/sh_mobile_csi2.h include/media/sh_vou.h \ include/media/si476x.h include/media/soc_mediabus.h \ include/media/tea575x.h include/media/drv-intf/ And the references for those headers were corrected using: MAIN_DIR="media/" PREV_DIR="media/" DIRS="drv-intf/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-14 05:40:07 +08:00
#include <media/drv-intf/msp3400.h>
#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/byteorder.h>
[media] include/media: split I2C headers from V4L2 core Currently, include/media is messy, as it contains both the V4L2 core headers and some driver-specific headers on the same place. That makes harder to identify what core headers should be documented and what headers belong to I2C drivers that are included only by bridge/main drivers that would require the functions provided by them. Let's move those i2c specific files to its own subdirectory. The files to move were produced via the following script: mkdir include/media/i2c (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/*/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) for i in include/media/*.h; do n=`basename $i`; (for j in $(git grep -l $n); do dirname $j; done)|sort|uniq|grep -ve '^.$' > list; num=$(wc -l list|cut -d' ' -f1); if [ $num == 1 ]; then if [ "`grep i2c list`" != "" ]; then git mv $i include/media/i2c; fi; fi; done And the references corrected via this script: MAIN_DIR="media/" PREV_DIR="media/" DIRS="i2c/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Merged Sakari Ailus patch that moves smiapp.h to include/media/i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-10 22:01:44 +08:00
#include <media/i2c/saa6588.h>
#define BTTV_VERSION "0.9.19"
unsigned int bttv_num; /* number of Bt848s in use */
struct bttv *bttvs[BTTV_MAX];
unsigned int bttv_debug;
unsigned int bttv_verbose = 1;
unsigned int bttv_gpio;
/* config variables */
#ifdef __BIG_ENDIAN
static unsigned int bigendian=1;
#else
static unsigned int bigendian;
#endif
static unsigned int radio[BTTV_MAX];
static unsigned int irq_debug;
static unsigned int gbuffers = 8;
static unsigned int gbufsize = 0x208000;
2007-01-19 03:17:39 +08:00
static unsigned int reset_crop = 1;
static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
static int debug_latency;
static int disable_ir;
static unsigned int fdsr;
/* options */
static unsigned int combfilter;
static unsigned int lumafilter;
static unsigned int automute = 1;
static unsigned int chroma_agc;
static unsigned int agc_crush = 1;
static unsigned int whitecrush_upper = 0xCF;
static unsigned int whitecrush_lower = 0x7F;
static unsigned int vcr_hack;
static unsigned int irq_iswitch;
static unsigned int uv_ratio = 50;
static unsigned int full_luma_range;
static unsigned int coring;
/* API features (turn on/off stuff for testing) */
static unsigned int v4l2 = 1;
/* insmod args */
module_param(bttv_verbose, int, 0644);
module_param(bttv_gpio, int, 0644);
module_param(bttv_debug, int, 0644);
module_param(irq_debug, int, 0644);
module_param(debug_latency, int, 0644);
module_param(disable_ir, int, 0444);
module_param(fdsr, int, 0444);
module_param(gbuffers, int, 0444);
module_param(gbufsize, int, 0444);
2007-01-19 03:17:39 +08:00
module_param(reset_crop, int, 0444);
module_param(v4l2, int, 0644);
module_param(bigendian, int, 0644);
module_param(irq_iswitch, int, 0644);
module_param(combfilter, int, 0444);
module_param(lumafilter, int, 0444);
module_param(automute, int, 0444);
module_param(chroma_agc, int, 0444);
module_param(agc_crush, int, 0444);
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_param_array(video_nr, int, NULL, 0444);
module_param_array(radio_nr, int, NULL, 0444);
module_param_array(vbi_nr, int, NULL, 0444);
MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)");
MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian");
MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)");
MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)");
MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)");
MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)");
MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8");
MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000");
MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default is 1 (yes) for compatibility with older applications");
MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
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_PARM_DESC(video_nr, "video device numbers");
MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
MODULE_PARM_DESC(radio_nr, "radio device numbers");
MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
MODULE_LICENSE("GPL");
MODULE_VERSION(BTTV_VERSION);
#define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0)
#define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1)
#define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2)
#define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3)
#define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4)
#define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5)
#define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6)
#define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7)
#define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8)
#define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9)
/* ----------------------------------------------------------------------- */
/* sysfs */
static ssize_t show_card(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct video_device *vfd = to_video_device(cd);
struct bttv *btv = video_get_drvdata(vfd);
return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
}
static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
/* ----------------------------------------------------------------------- */
/* dvb auto-load setup */
#if defined(CONFIG_MODULES) && defined(MODULE)
static void request_module_async(struct work_struct *work)
{
request_module("dvb-bt8xx");
}
static void request_modules(struct bttv *dev)
{
INIT_WORK(&dev->request_module_wk, request_module_async);
schedule_work(&dev->request_module_wk);
}
static void flush_request_modules(struct bttv *dev)
{
workqueue: deprecate flush[_delayed]_work_sync() flush[_delayed]_work_sync() are now spurious. Mark them deprecated and convert all users to flush[_delayed]_work(). If you're cc'd and wondering what's going on: Now all workqueues are non-reentrant and the regular flushes guarantee that the work item is not pending or running on any CPU on return, so there's no reason to use the sync flushes at all and they're going away. This patch doesn't make any functional difference. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Mattia Dongili <malattia@linux.it> Cc: Kent Yoder <key@linux.vnet.ibm.com> Cc: David Airlie <airlied@linux.ie> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Bryan Wu <bryan.wu@canonical.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alasdair Kergon <agk@redhat.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: Anton Vorontsov <cbou@mail.ru> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Petr Vandrovec <petr@vandrovec.name> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Avi Kivity <avi@redhat.com>
2012-08-21 05:51:24 +08:00
flush_work(&dev->request_module_wk);
}
#else
#define request_modules(dev)
#define flush_request_modules(dev) do {} while(0)
#endif /* CONFIG_MODULES */
/* ----------------------------------------------------------------------- */
/* static data */
/* special timing tables from conexant... */
static u8 SRAM_Table[][60] =
{
/* PAL digital input over GPIO[7:0] */
{
45, // 45 bytes following
0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
0x37,0x00,0xAF,0x21,0x00
},
/* NTSC digital input over GPIO[7:0] */
{
51, // 51 bytes following
0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
0x00,
},
// TGB_NTSC392 // quartzsight
// This table has been modified to be used for Fusion Rev D
{
0x2A, // size of table = 42
0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
0x20, 0x00
}
};
2007-01-19 03:17:39 +08:00
/* minhdelayx1 first video pixel we can capture on a line and
hdelayx1 start of active video, both relative to rising edge of
/HRESET pulse (0H) in 1 / fCLKx1.
swidth width of active video and
totalwidth total line width, both in 1 / fCLKx1.
sqwidth total line width in square pixels.
vdelay start of active video in 2 * field lines relative to
trailing edge of /VRESET pulse (VDELAY register).
sheight height of active video in 2 * field lines.
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
extraheight Added to sheight for cropcap.bounds.height only
2007-01-19 03:17:39 +08:00
videostart0 ITU-R frame line number of the line corresponding
to vdelay in the first field. */
#define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
vdelay, sheight, extraheight, videostart0) \
2007-01-19 03:17:39 +08:00
.cropcap.bounds.left = minhdelayx1, \
/* * 2 because vertically we count field lines times two, */ \
/* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
.cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
/* 4 is a safety margin at the end of the line. */ \
.cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
.cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \
MIN_VDELAY, \
2007-01-19 03:17:39 +08:00
.cropcap.defrect.left = hdelayx1, \
.cropcap.defrect.top = (videostart0) * 2, \
.cropcap.defrect.width = swidth, \
.cropcap.defrect.height = sheight, \
.cropcap.pixelaspect.numerator = totalwidth, \
.cropcap.pixelaspect.denominator = sqwidth,
const struct bttv_tvnorm bttv_tvnorms[] = {
/* PAL-BDGHI */
/* max. active video is actually 922, but 924 is divisible by 4 and 3! */
/* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
{
.v4l2_id = V4L2_STD_PAL,
.name = "PAL",
.Fsc = 35468950,
.swidth = 924,
.sheight = 576,
.totalwidth = 1135,
.adelay = 0x7f,
.bdelay = 0x72,
.iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
.scaledtwidth = 1135,
.hdelayx1 = 186,
.hactivex1 = 924,
.vdelay = 0x20,
2007-01-19 03:17:39 +08:00
.vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
.sram = 0,
/* ITU-R frame line number of the first VBI line
2007-01-19 03:17:39 +08:00
we can capture, of the first and second field.
The last line is determined by cropcap.bounds. */
.vbistart = { 7, 320 },
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 186,
/* Should be (768 * 1135 + 944 / 2) / 944.
cropcap.defrect is used for image width
checks, so we keep the old value 924. */
/* swidth */ 924,
/* totalwidth */ 1135,
/* sqwidth */ 944,
/* vdelay */ 0x20,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* sheight */ 576,
/* bt878 (and bt848?) can capture another
line below active video. */
/* extraheight */ 2,
/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
.name = "NTSC",
.Fsc = 28636363,
.swidth = 768,
.sheight = 480,
.totalwidth = 910,
.adelay = 0x68,
.bdelay = 0x5d,
.iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
.scaledtwidth = 910,
.hdelayx1 = 128,
.hactivex1 = 910,
.vdelay = 0x1a,
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.vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
.sram = 1,
.vbistart = { 10, 273 },
2007-01-19 03:17:39 +08:00
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 128,
/* Should be (640 * 910 + 780 / 2) / 780? */
/* swidth */ 768,
/* totalwidth */ 910,
/* sqwidth */ 780,
/* vdelay */ 0x1a,
/* sheight */ 480,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
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/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_SECAM,
.name = "SECAM",
.Fsc = 35468950,
.swidth = 924,
.sheight = 576,
.totalwidth = 1135,
.adelay = 0x7f,
.bdelay = 0xb0,
.iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
.scaledtwidth = 1135,
.hdelayx1 = 186,
.hactivex1 = 922,
.vdelay = 0x20,
.vbipack = 255,
.sram = 0, /* like PAL, correct? */
.vbistart = { 7, 320 },
2007-01-19 03:17:39 +08:00
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 186,
/* swidth */ 924,
/* totalwidth */ 1135,
/* sqwidth */ 944,
/* vdelay */ 0x20,
/* sheight */ 576,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
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/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_PAL_Nc,
.name = "PAL-Nc",
.Fsc = 28636363,
.swidth = 640,
.sheight = 576,
.totalwidth = 910,
.adelay = 0x68,
.bdelay = 0x5d,
.iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
.scaledtwidth = 780,
.hdelayx1 = 130,
.hactivex1 = 734,
.vdelay = 0x1a,
.vbipack = 144,
.sram = -1,
.vbistart = { 7, 320 },
2007-01-19 03:17:39 +08:00
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 130,
/* swidth */ (640 * 910 + 780 / 2) / 780,
/* totalwidth */ 910,
/* sqwidth */ 780,
/* vdelay */ 0x1a,
/* sheight */ 576,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
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/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_PAL_M,
.name = "PAL-M",
.Fsc = 28636363,
.swidth = 640,
.sheight = 480,
.totalwidth = 910,
.adelay = 0x68,
.bdelay = 0x5d,
.iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
.scaledtwidth = 780,
.hdelayx1 = 135,
.hactivex1 = 754,
.vdelay = 0x1a,
.vbipack = 144,
.sram = -1,
.vbistart = { 10, 273 },
2007-01-19 03:17:39 +08:00
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 135,
/* swidth */ (640 * 910 + 780 / 2) / 780,
/* totalwidth */ 910,
/* sqwidth */ 780,
/* vdelay */ 0x1a,
/* sheight */ 480,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
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/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_PAL_N,
.name = "PAL-N",
.Fsc = 35468950,
.swidth = 768,
.sheight = 576,
.totalwidth = 1135,
.adelay = 0x7f,
.bdelay = 0x72,
.iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
.scaledtwidth = 944,
.hdelayx1 = 186,
.hactivex1 = 922,
.vdelay = 0x20,
.vbipack = 144,
.sram = -1,
2007-01-19 03:17:39 +08:00
.vbistart = { 7, 320 },
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 186,
/* swidth */ (768 * 1135 + 944 / 2) / 944,
/* totalwidth */ 1135,
/* sqwidth */ 944,
/* vdelay */ 0x20,
/* sheight */ 576,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
2007-01-19 03:17:39 +08:00
/* videostart0 */ 23)
},{
.v4l2_id = V4L2_STD_NTSC_M_JP,
.name = "NTSC-JP",
.Fsc = 28636363,
.swidth = 640,
.sheight = 480,
.totalwidth = 910,
.adelay = 0x68,
.bdelay = 0x5d,
.iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
.scaledtwidth = 780,
.hdelayx1 = 135,
.hactivex1 = 754,
.vdelay = 0x16,
.vbipack = 144,
.sram = -1,
2007-01-19 03:17:39 +08:00
.vbistart = { 10, 273 },
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 135,
/* swidth */ (640 * 910 + 780 / 2) / 780,
/* totalwidth */ 910,
/* sqwidth */ 780,
/* vdelay */ 0x16,
/* sheight */ 480,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
2007-01-19 03:17:39 +08:00
/* videostart0 */ 23)
},{
/* that one hopefully works with the strange timing
* which video recorders produce when playing a NTSC
* tape on a PAL TV ... */
.v4l2_id = V4L2_STD_PAL_60,
.name = "PAL-60",
.Fsc = 35468950,
.swidth = 924,
.sheight = 480,
.totalwidth = 1135,
.adelay = 0x7f,
.bdelay = 0x72,
.iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
.scaledtwidth = 1135,
.hdelayx1 = 186,
.hactivex1 = 924,
.vdelay = 0x1a,
.vbipack = 255,
.vtotal = 524,
.sram = -1,
.vbistart = { 10, 273 },
2007-01-19 03:17:39 +08:00
CROPCAP(/* minhdelayx1 */ 68,
/* hdelayx1 */ 186,
/* swidth */ 924,
/* totalwidth */ 1135,
/* sqwidth */ 944,
/* vdelay */ 0x1a,
/* sheight */ 480,
[media] [REGRESSION] bt8xx: Fix too large height in cropcap Since commit a1fd287780c8e91fed4957b30c757b0c93021162: "[media] bttv-driver: fix two warnings" cropcap.defrect.height and cropcap.bounds.height for the PAL entry are 32 resp 30 pixels too large, if a userspace app (ie xawtv) actually tries to use the full advertised height, the resulting image is broken in ways only a screenshot can describe. The cause of this is the fix for this warning: drivers/media/pci/bt8xx/bttv-driver.c:308:3: warning: initialized field overwritten [-Woverride-init] In this chunk of the commit: @@ -301,11 +301,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) /* bt878 (and bt848?) can capture another line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, + /* sheight */ (576 + 2) + 0x20 - 2, + /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, .name = "NTSC", Which replaces the overriding of cropcap.bounds.height initialization outside of the CROPCAP macro (which also initializes it), with passing a different sheight value to the CROPCAP macro. There are 2 problems with this warning fix: 1) The sheight value is used twice in the CROPCAP macro, and the old code only changed one resulting value. 2) The old code increased the .cropcap.bounds.height value (and did not touch the .cropcap.defrect.height value at all) by 2, where as the fixed code increases it by 32, as the fixed code passes (576 + 2) + 0x20 - 2 to the CROPCAP macro, but the + 0x20 - 2 is already done by the macro so now is done twice for .cropcap.bounds.height, and also is applied to .cropcap.defrect.height where it should not be applied at all. This patch fixes this by adding an extraheight parameter to the CROPCAP entry and using it for the PAL entry. Cc: stable@kernel.org # For Kernel 3.8 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-26 01:45:54 +08:00
/* extraheight */ 0,
2007-01-19 03:17:39 +08:00
/* videostart0 */ 23)
}
};
static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
/* ----------------------------------------------------------------------- */
/* bttv format list
packed pixel formats must come first */
static const struct bttv_format formats[] = {
{
.name = "8 bpp, gray",
.fourcc = V4L2_PIX_FMT_GREY,
.btformat = BT848_COLOR_FMT_Y8,
.depth = 8,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "8 bpp, dithered color",
.fourcc = V4L2_PIX_FMT_HI240,
.btformat = BT848_COLOR_FMT_RGB8,
.depth = 8,
.flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
},{
.name = "15 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB555,
.btformat = BT848_COLOR_FMT_RGB15,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "15 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB555X,
.btformat = BT848_COLOR_FMT_RGB15,
.btswap = 0x03, /* byteswap */
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "16 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB565,
.btformat = BT848_COLOR_FMT_RGB16,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "16 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB565X,
.btformat = BT848_COLOR_FMT_RGB16,
.btswap = 0x03, /* byteswap */
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "24 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR24,
.btformat = BT848_COLOR_FMT_RGB24,
.depth = 24,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "32 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR32,
.btformat = BT848_COLOR_FMT_RGB32,
.depth = 32,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "32 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB32,
.btformat = BT848_COLOR_FMT_RGB32,
.btswap = 0x0f, /* byte+word swap */
.depth = 32,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "4:2:2, packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.btformat = BT848_COLOR_FMT_YUY2,
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "4:2:2, packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.btformat = BT848_COLOR_FMT_YUY2,
.btswap = 0x03, /* byteswap */
.depth = 16,
.flags = FORMAT_FLAGS_PACKED,
},{
.name = "4:2:2, planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV422P,
.btformat = BT848_COLOR_FMT_YCrCb422,
.depth = 16,
.flags = FORMAT_FLAGS_PLANAR,
.hshift = 1,
.vshift = 0,
},{
.name = "4:2:0, planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV420,
.btformat = BT848_COLOR_FMT_YCrCb422,
.depth = 12,
.flags = FORMAT_FLAGS_PLANAR,
.hshift = 1,
.vshift = 1,
},{
.name = "4:2:0, planar, Y-Cr-Cb",
.fourcc = V4L2_PIX_FMT_YVU420,
.btformat = BT848_COLOR_FMT_YCrCb422,
.depth = 12,
.flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
.hshift = 1,
.vshift = 1,
},{
.name = "4:1:1, planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV411P,
.btformat = BT848_COLOR_FMT_YCrCb411,
.depth = 12,
.flags = FORMAT_FLAGS_PLANAR,
.hshift = 2,
.vshift = 0,
},{
.name = "4:1:0, planar, Y-Cb-Cr",
.fourcc = V4L2_PIX_FMT_YUV410,
.btformat = BT848_COLOR_FMT_YCrCb411,
.depth = 9,
.flags = FORMAT_FLAGS_PLANAR,
.hshift = 2,
.vshift = 2,
},{
.name = "4:1:0, planar, Y-Cr-Cb",
.fourcc = V4L2_PIX_FMT_YVU410,
.btformat = BT848_COLOR_FMT_YCrCb411,
.depth = 9,
.flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
.hshift = 2,
.vshift = 2,
},{
.name = "raw scanlines",
.fourcc = -1,
.btformat = BT848_COLOR_FMT_RAW,
.depth = 8,
.flags = FORMAT_FLAGS_RAW,
}
};
static const unsigned int FORMATS = ARRAY_SIZE(formats);
/* ----------------------------------------------------------------------- */
/* resource management */
2007-01-19 03:17:39 +08:00
/*
RESOURCE_ allocated by freed by
VIDEO_READ bttv_read 1) bttv_read 2)
VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
VIDIOC_QBUF 1) bttv_release
VIDIOCMCAPTURE 1)
OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
VIDIOC_OVERLAY on VIDIOC_OVERLAY off
3) bttv_release
VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
VIDIOC_QBUF 1) bttv_release
bttv_read, bttv_poll 1) 4)
1) The resource must be allocated when we enter buffer prepare functions
and remain allocated while buffers are in the DMA queue.
2) This is a single frame read.
3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
RESOURCE_OVERLAY is allocated.
4) This is a continuous read, implies VIDIOC_STREAMON.
Note this driver permits video input and standard changes regardless if
resources are allocated.
*/
#define VBI_RESOURCES (RESOURCE_VBI)
#define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
RESOURCE_VIDEO_STREAM | \
RESOURCE_OVERLAY)
static
int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
{
2007-01-19 03:17:39 +08:00
int xbits; /* mutual exclusive resources */
if (fh->resources & bit)
/* have it already allocated */
return 1;
2007-01-19 03:17:39 +08:00
xbits = bit;
if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
/* is it free? */
2007-01-19 03:17:39 +08:00
if (btv->resources & xbits) {
/* no, someone else uses it */
2007-01-19 03:17:39 +08:00
goto fail;
}
if ((bit & VIDEO_RESOURCES)
&& 0 == (btv->resources & VIDEO_RESOURCES)) {
/* Do crop - use current, don't - use default parameters. */
__s32 top = btv->crop[!!fh->do_crop].rect.top;
if (btv->vbi_end > top)
goto fail;
/* We cannot capture the same line as video and VBI data.
Claim scan lines crop[].rect.top to bottom. */
btv->crop_start = top;
} else if (bit & VBI_RESOURCES) {
__s32 end = fh->vbi_fmt.end;
if (end > btv->crop_start)
goto fail;
/* Claim scan lines above fh->vbi_fmt.end. */
btv->vbi_end = end;
}
2007-01-19 03:17:39 +08:00
/* it's free, grab it */
fh->resources |= bit;
btv->resources |= bit;
return 1;
2007-01-19 03:17:39 +08:00
fail:
return 0;
}
static
int check_btres(struct bttv_fh *fh, int bit)
{
return (fh->resources & bit);
}
static
int locked_btres(struct bttv *btv, int bit)
{
return (btv->resources & bit);
}
2007-01-19 03:17:39 +08:00
/* Call with btv->lock down. */
static void
disclaim_vbi_lines(struct bttv *btv)
{
btv->vbi_end = 0;
}
/* Call with btv->lock down. */
static void
disclaim_video_lines(struct bttv *btv)
{
const struct bttv_tvnorm *tvnorm;
u8 crop;
tvnorm = &bttv_tvnorms[btv->tvnorm];
btv->crop_start = tvnorm->cropcap.bounds.top
+ tvnorm->cropcap.bounds.height;
/* VBI capturing ends at VDELAY, start of video capturing, no
matter how many lines the VBI RISC program expects. When video
capturing is off, it shall no longer "preempt" VBI capturing,
so we set VDELAY to maximum. */
crop = btread(BT848_E_CROP) | 0xc0;
btwrite(crop, BT848_E_CROP);
btwrite(0xfe, BT848_E_VDELAY_LO);
btwrite(crop, BT848_O_CROP);
btwrite(0xfe, BT848_O_VDELAY_LO);
}
static
void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
{
if ((fh->resources & bits) != bits) {
/* trying to free resources not allocated by us ... */
pr_err("BUG! (btres)\n");
}
fh->resources &= ~bits;
btv->resources &= ~bits;
2007-01-19 03:17:39 +08:00
bits = btv->resources;
if (0 == (bits & VIDEO_RESOURCES))
disclaim_video_lines(btv);
if (0 == (bits & VBI_RESOURCES))
disclaim_vbi_lines(btv);
}
/* ----------------------------------------------------------------------- */
/* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
/* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
PLL_X = Reference pre-divider (0=1, 1=2)
PLL_C = Post divider (0=6, 1=4)
PLL_I = Integer input
PLL_F = Fractional input
F_input = 28.636363 MHz:
PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
*/
static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
{
unsigned char fl, fh, fi;
/* prevent overflows */
fin/=4;
fout/=4;
fout*=12;
fi=fout/fin;
fout=(fout%fin)*256;
fh=fout/fin;
fout=(fout%fin)*256;
fl=fout/fin;
btwrite(fl, BT848_PLL_F_LO);
btwrite(fh, BT848_PLL_F_HI);
btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
}
static void set_pll(struct bttv *btv)
{
int i;
if (!btv->pll.pll_crystal)
return;
if (btv->pll.pll_ofreq == btv->pll.pll_current) {
dprintk("%d: PLL: no change required\n", btv->c.nr);
return;
}
if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
/* no PLL needed */
if (btv->pll.pll_current == 0)
return;
if (bttv_verbose)
pr_info("%d: PLL can sleep, using XTAL (%d)\n",
btv->c.nr, btv->pll.pll_ifreq);
btwrite(0x00,BT848_TGCTRL);
btwrite(0x00,BT848_PLL_XCI);
btv->pll.pll_current = 0;
return;
}
if (bttv_verbose)
pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
btv->c.nr,
btv->pll.pll_ifreq, btv->pll.pll_ofreq);
set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
for (i=0; i<10; i++) {
/* Let other people run while the PLL stabilizes */
msleep(10);
if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
btwrite(0,BT848_DSTATUS);
} else {
btwrite(0x08,BT848_TGCTRL);
btv->pll.pll_current = btv->pll.pll_ofreq;
if (bttv_verbose)
pr_info("PLL set ok\n");
return;
}
}
btv->pll.pll_current = -1;
if (bttv_verbose)
pr_info("Setting PLL failed\n");
return;
}
/* used to switch between the bt848's analog/digital video capture modes */
static void bt848A_set_timing(struct bttv *btv)
{
int i, len;
int table_idx = bttv_tvnorms[btv->tvnorm].sram;
int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
if (btv->input == btv->dig) {
dprintk("%d: load digital timing table (table_idx=%d)\n",
btv->c.nr,table_idx);
/* timing change...reset timing generator address */
btwrite(0x00, BT848_TGCTRL);
btwrite(0x02, BT848_TGCTRL);
btwrite(0x00, BT848_TGCTRL);
len=SRAM_Table[table_idx][0];
for(i = 1; i <= len; i++)
btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
btv->pll.pll_ofreq = 27000000;
set_pll(btv);
btwrite(0x11, BT848_TGCTRL);
btwrite(0x41, BT848_DVSIF);
} else {
btv->pll.pll_ofreq = fsc;
set_pll(btv);
btwrite(0x0, BT848_DVSIF);
}
}
/* ----------------------------------------------------------------------- */
static void bt848_bright(struct bttv *btv, int bright)
{
int value;
// printk("set bright: %d\n", bright); // DEBUG
btv->bright = bright;
/* We want -128 to 127 we get 0-65535 */
value = (bright >> 8) - 128;
btwrite(value & 0xff, BT848_BRIGHT);
}
static void bt848_hue(struct bttv *btv, int hue)
{
int value;
btv->hue = hue;
/* -128 to 127 */
value = (hue >> 8) - 128;
btwrite(value & 0xff, BT848_HUE);
}
static void bt848_contrast(struct bttv *btv, int cont)
{
int value,hibit;
btv->contrast = cont;
/* 0-511 */
value = (cont >> 7);
hibit = (value >> 6) & 4;
btwrite(value & 0xff, BT848_CONTRAST_LO);
btaor(hibit, ~4, BT848_E_CONTROL);
btaor(hibit, ~4, BT848_O_CONTROL);
}
static void bt848_sat(struct bttv *btv, int color)
{
int val_u,val_v,hibits;
btv->saturation = color;
/* 0-511 for the color */
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);
btwrite(val_v & 0xff, BT848_SAT_V_LO);
btaor(hibits, ~3, BT848_E_CONTROL);
btaor(hibits, ~3, BT848_O_CONTROL);
}
/* ----------------------------------------------------------------------- */
static int
video_mux(struct bttv *btv, unsigned int input)
{
int mux,mask2;
if (input >= bttv_tvcards[btv->c.type].video_inputs)
return -EINVAL;
/* needed by RemoteVideo MX */
mask2 = bttv_tvcards[btv->c.type].gpiomask2;
if (mask2)
gpio_inout(mask2,mask2);
if (input == btv->svhs) {
btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
} else {
btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
}
V4L/DVB (10567): bttv: shrink muxsel data in card database Over half of the card database was used to store muxsel data. 64 bytes were used to store one 32 bit word for each of up to 16 inputs. The Bt8x8 only has two bits to control its mux, so muxsel data for 16 inputs will fit into a single 32 bit word. There were a couple cards that had special muxsel data that didn't fit in two bits, but I cleaned them up in earlier patches. Unfortunately, C doesn't allow us to have an array of bit fields. This makes initializing the structure more of a pain. But with some cpp magic, we can do it by changing: .muxsel = { 2, 3, 0, 1 }, .muxsel = { 2, 2, 2, 2, 3, 3, 3, 3, 1, 1 }, Into: .muxsel = MUXSEL(2, 3, 0, 1), .muxsel = MUXSEL(2, 2, 2, 2, 3, 3, 3, 3, 1, 1), That's not so bad. MUXSEL is a fancy macro that packs the arguments (of which there can be one to sixteen!) into a single word two bits at a time. It's a compile time constant (a variadic function wouldn't be) so we can use it to initialize the structure. It's important the the arguments to the macro only be plain decimal integers. Stuff like "0x01", "(2)", or "MUX3" won't work properly. I also created an accessor function, bttv_muxsel(btv, input), that gets the mux bits for the selected input. It makes it cleaner to change the way the muxsel data is stored. This patch doesn't change the code size and decreases the datasegment by 9440 bytes. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-29 08:32:59 +08:00
mux = bttv_muxsel(btv, input);
btaor(mux<<5, ~(3<<5), BT848_IFORM);
dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
/* card specific hook */
if(bttv_tvcards[btv->c.type].muxsel_hook)
bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
return 0;
}
static char *audio_modes[] = {
"audio: tuner", "audio: radio", "audio: extern",
"audio: intern", "audio: mute"
};
static void
audio_mux_gpio(struct bttv *btv, int input, int mute)
{
int gpio_val, signal, mute_gpio;
gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
bttv_tvcards[btv->c.type].gpiomask);
signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
/* automute */
mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
&& !btv->has_radio_tuner);
if (mute_gpio)
gpio_val = bttv_tvcards[btv->c.type].gpiomute;
else
gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
switch (btv->c.type) {
case BTTV_BOARD_VOODOOTV_FM:
case BTTV_BOARD_VOODOOTV_200:
gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
break;
default:
gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
}
if (bttv_gpio)
bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
}
static int
audio_mute(struct bttv *btv, int mute)
{
struct v4l2_ctrl *ctrl;
audio_mux_gpio(btv, btv->audio_input, mute);
if (btv->sd_msp34xx) {
ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
if (ctrl)
v4l2_ctrl_s_ctrl(ctrl, mute);
}
if (btv->sd_tvaudio) {
ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
if (ctrl)
v4l2_ctrl_s_ctrl(ctrl, mute);
}
if (btv->sd_tda7432) {
ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
if (ctrl)
v4l2_ctrl_s_ctrl(ctrl, mute);
}
return 0;
}
static int
audio_input(struct bttv *btv, int input)
{
audio_mux_gpio(btv, input, btv->mute);
if (btv->sd_msp34xx) {
u32 in;
/* Note: the inputs tuner/radio/extern/intern are translated
to msp routings. This assumes common behavior for all msp3400
based TV cards. When this assumption fails, then the
specific MSP routing must be added to the card table.
For now this is sufficient. */
switch (input) {
case TVAUDIO_INPUT_RADIO:
/* Some boards need the msp do to the radio demod */
if (btv->radio_uses_msp_demodulator) {
in = MSP_INPUT_DEFAULT;
break;
}
in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
break;
case TVAUDIO_INPUT_EXTERN:
in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
break;
case TVAUDIO_INPUT_INTERN:
/* Yes, this is the same input as for RADIO. I doubt
if this is ever used. The only board with an INTERN
input is the BTTV_BOARD_AVERMEDIA98. I wonder how
that was tested. My guess is that the whole INTERN
input does not work. */
in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
break;
case TVAUDIO_INPUT_TUNER:
default:
/* This is the only card that uses TUNER2, and afaik,
is the only difference between the VOODOOTV_FM
and VOODOOTV_200 */
if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
else
in = MSP_INPUT_DEFAULT;
break;
}
v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
in, MSP_OUTPUT_DEFAULT, 0);
}
if (btv->sd_tvaudio) {
v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
input, 0, 0);
}
return 0;
}
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static void
bttv_crop_calc_limits(struct bttv_crop *c)
{
/* Scale factor min. 1:1, max. 16:1. Min. image size
48 x 32. Scaled width must be a multiple of 4. */
if (1) {
/* For bug compatibility with VIDIOCGCAP and image
size checks in earlier driver versions. */
c->min_scaled_width = 48;
c->min_scaled_height = 32;
} else {
c->min_scaled_width =
(max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
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c->min_scaled_height =
max_t(unsigned int, 32, c->rect.height >> 4);
2007-01-19 03:17:39 +08:00
}
c->max_scaled_width = c->rect.width & ~3;
c->max_scaled_height = c->rect.height;
}
static void
bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
2007-01-19 03:17:39 +08:00
{
c->rect = bttv_tvnorms[norm].cropcap.defrect;
bttv_crop_calc_limits(c);
}
/* Call with btv->lock down. */
static int
set_tvnorm(struct bttv *btv, unsigned int norm)
{
const struct bttv_tvnorm *tvnorm;
v4l2_std_id id;
BUG_ON(norm >= BTTV_TVNORMS);
BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
tvnorm = &bttv_tvnorms[norm];
V4L/DVB (13170): bttv: Fix reversed polarity error when switching video standard The bttv driver function which handles switching of the video standard (set_tvnorm() in bttv-driver.c) includes a check which can optionally also reset the cropping configuration to a default value. It is "optional" based on a comparison of the cropcap parameters of the previous vs the newly requested video standard. The comparison is being done with a memcmp(), a function which only returns a true value if the comparison actually fails. This if-statement appears to have been written to assume wrong memcmp() semantics. That is, it was re-initializing the cropping configuration only if the new video standard did NOT have different cropcap values. That doesn't make any sense. One definitely should reset things if the cropcap parameters are different - if there's any comparison to made at all. The effect of this problem was that a transition from, say, PAL to NTSC would leave in place old cropping setup that made sense for the PAL geometry but not for NTSC. If the application doesn't care about cropping it also won't try to reset the cropping configuration, resulting in an improperly cropped video frame. In the case I was testing this actually caused black video frames to be displayed. Another interesting effect of this bug is that if one does something which does NOT change the video standard and this function is run, then the cropping setup gets reset anyway - again because of the backwards comparison. It turns out that just running anything which merely opens and closes the video device node (e.g. v4l-info) will cause this to happen. One can argue that simply opening the device node and not doing anything to it should not mess with any of its state - but because of this behavior, any TV app which does such things (e.g. xawtv) probably therefore doesn't see the problem. The solution is to fix the sense of the if-statement. It's easy to see how this mistake could have been made given how memcmp() works. The patch is therefore removal of a single "!" character from the if-statement in set_tvnorm in bttv-driver.c. Signed-off-by: Mike Isely <isely@pobox.com> CC: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-21 23:42:22 +08:00
if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
sizeof (tvnorm->cropcap))) {
2007-01-19 03:17:39 +08:00
bttv_crop_reset(&btv->crop[0], norm);
btv->crop[1] = btv->crop[0]; /* current = default */
if (0 == (btv->resources & VIDEO_RESOURCES)) {
btv->crop_start = tvnorm->cropcap.bounds.top
+ tvnorm->cropcap.bounds.height;
}
}
btv->tvnorm = norm;
btwrite(tvnorm->adelay, BT848_ADELAY);
btwrite(tvnorm->bdelay, BT848_BDELAY);
btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
BT848_IFORM);
btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
btwrite(1, BT848_VBI_PACK_DEL);
bt848A_set_timing(btv);
switch (btv->c.type) {
case BTTV_BOARD_VOODOOTV_FM:
case BTTV_BOARD_VOODOOTV_200:
bttv_tda9880_setnorm(btv, gpio_read());
break;
}
id = tvnorm->v4l2_id;
bttv_call_all(btv, video, s_std, id);
return 0;
}
2007-01-19 03:17:39 +08:00
/* Call with btv->lock down. */
static void
set_input(struct bttv *btv, unsigned int input, unsigned int norm)
{
unsigned long flags;
btv->input = input;
if (irq_iswitch) {
spin_lock_irqsave(&btv->s_lock,flags);
if (btv->curr.frame_irq) {
/* active capture -> delayed input switch */
btv->new_input = input;
} else {
video_mux(btv,input);
}
spin_unlock_irqrestore(&btv->s_lock,flags);
} else {
video_mux(btv,input);
}
btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
audio_input(btv, btv->audio_input);
set_tvnorm(btv, norm);
}
static void init_irqreg(struct bttv *btv)
{
/* clear status */
btwrite(0xfffffUL, BT848_INT_STAT);
if (bttv_tvcards[btv->c.type].no_video) {
/* i2c only */
btwrite(BT848_INT_I2CDONE,
BT848_INT_MASK);
} else {
/* full video */
btwrite((btv->triton1) |
(btv->gpioirq ? BT848_INT_GPINT : 0) |
BT848_INT_SCERR |
(fdsr ? BT848_INT_FDSR : 0) |
BT848_INT_RISCI | BT848_INT_OCERR |
BT848_INT_FMTCHG|BT848_INT_HLOCK|
BT848_INT_I2CDONE,
BT848_INT_MASK);
}
}
static void init_bt848(struct bttv *btv)
{
if (bttv_tvcards[btv->c.type].no_video) {
/* very basic init only */
init_irqreg(btv);
return;
}
btwrite(0x00, BT848_CAP_CTL);
btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
/* set planar and packed mode trigger points and */
/* set rising edge of inverted GPINTR pin as irq trigger */
btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
BT848_GPIO_DMA_CTL_PLTP1_16|
BT848_GPIO_DMA_CTL_PLTP23_16|
BT848_GPIO_DMA_CTL_GPINTC|
BT848_GPIO_DMA_CTL_GPINTI,
BT848_GPIO_DMA_CTL);
btwrite(0x20, BT848_E_VSCALE_HI);
btwrite(0x20, BT848_O_VSCALE_HI);
v4l2_ctrl_handler_setup(&btv->ctrl_handler);
/* interrupt */
init_irqreg(btv);
}
static void bttv_reinit_bt848(struct bttv *btv)
{
unsigned long flags;
if (bttv_verbose)
pr_info("%d: reset, reinitialize\n", btv->c.nr);
spin_lock_irqsave(&btv->s_lock,flags);
btv->errors=0;
bttv_set_dma(btv,0);
spin_unlock_irqrestore(&btv->s_lock,flags);
init_bt848(btv);
btv->pll.pll_current = -1;
set_input(btv, btv->input, btv->tvnorm);
}
static int bttv_s_ctrl(struct v4l2_ctrl *c)
{
struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
int val;
switch (c->id) {
case V4L2_CID_BRIGHTNESS:
bt848_bright(btv, c->val);
break;
case V4L2_CID_HUE:
bt848_hue(btv, c->val);
break;
case V4L2_CID_CONTRAST:
bt848_contrast(btv, c->val);
break;
case V4L2_CID_SATURATION:
bt848_sat(btv, c->val);
break;
case V4L2_CID_COLOR_KILLER:
if (c->val) {
btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
} else {
btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
}
break;
case V4L2_CID_AUDIO_MUTE:
audio_mute(btv, c->val);
btv->mute = c->val;
break;
case V4L2_CID_AUDIO_VOLUME:
btv->volume_gpio(btv, c->val);
break;
case V4L2_CID_CHROMA_AGC:
val = c->val ? BT848_SCLOOP_CAGC : 0;
btwrite(val, BT848_E_SCLOOP);
btwrite(val, BT848_O_SCLOOP);
break;
case V4L2_CID_PRIVATE_COMBFILTER:
btv->opt_combfilter = c->val;
break;
case V4L2_CID_PRIVATE_LUMAFILTER:
if (c->val) {
btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
} else {
btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
}
break;
case V4L2_CID_PRIVATE_AUTOMUTE:
btv->opt_automute = c->val;
break;
case V4L2_CID_PRIVATE_AGC_CRUSH:
btwrite(BT848_ADC_RESERVED |
(c->val ? BT848_ADC_CRUSH : 0),
BT848_ADC);
break;
case V4L2_CID_PRIVATE_VCR_HACK:
btv->opt_vcr_hack = c->val;
break;
case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
btwrite(c->val, BT848_WC_UP);
break;
case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
btwrite(c->val, BT848_WC_DOWN);
break;
case V4L2_CID_PRIVATE_UV_RATIO:
btv->opt_uv_ratio = c->val;
bt848_sat(btv, btv->saturation);
break;
case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
break;
case V4L2_CID_PRIVATE_CORING:
btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
break;
default:
return -EINVAL;
}
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
.s_ctrl = bttv_s_ctrl,
};
static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_COMBFILTER,
.name = "Comb Filter",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_automute = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_AUTOMUTE,
.name = "Auto Mute",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_LUMAFILTER,
.name = "Luma Decimation Filter",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_AGC_CRUSH,
.name = "AGC Crush",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_VCR_HACK,
.name = "VCR Hack",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
.name = "Whitecrush Lower",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 255,
.step = 1,
.def = 0x7f,
};
static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
.name = "Whitecrush Upper",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 255,
.step = 1,
.def = 0xcf,
};
static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_UV_RATIO,
.name = "UV Ratio",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 100,
.step = 1,
.def = 50,
};
static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
.name = "Full Luma Range",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
};
static struct v4l2_ctrl_config bttv_ctrl_coring = {
.ops = &bttv_ctrl_ops,
.id = V4L2_CID_PRIVATE_CORING,
.name = "Coring",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 3,
.step = 1,
};
/* ----------------------------------------------------------------------- */
void bttv_gpio_tracking(struct bttv *btv, char *comment)
{
unsigned int outbits, data;
outbits = btread(BT848_GPIO_OUT_EN);
data = btread(BT848_GPIO_DATA);
pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
}
static void bttv_field_count(struct bttv *btv)
{
int need_count = 0;
if (btv->users)
need_count++;
if (need_count) {
/* start field counter */
btor(BT848_INT_VSYNC,BT848_INT_MASK);
} else {
/* stop field counter */
btand(~BT848_INT_VSYNC,BT848_INT_MASK);
btv->field_count = 0;
}
}
static const struct bttv_format*
format_by_fourcc(int fourcc)
{
unsigned int i;
for (i = 0; i < FORMATS; i++) {
if (-1 == formats[i].fourcc)
continue;
if (formats[i].fourcc == fourcc)
return formats+i;
}
return NULL;
}
/* ----------------------------------------------------------------------- */
/* misc helpers */
static int
bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
struct bttv_buffer *new)
{
struct bttv_buffer *old;
unsigned long flags;
dprintk("switch_overlay: enter [new=%p]\n", new);
if (new)
new->vb.state = VIDEOBUF_DONE;
spin_lock_irqsave(&btv->s_lock,flags);
old = btv->screen;
btv->screen = new;
btv->loop_irq |= 1;
bttv_set_dma(btv, 0x03);
spin_unlock_irqrestore(&btv->s_lock,flags);
if (NULL != old) {
dprintk("switch_overlay: old=%p state is %d\n",
old, old->vb.state);
bttv_dma_free(&fh->cap,btv, old);
kfree(old);
}
2007-01-19 03:17:39 +08:00
if (NULL == new)
free_btres_lock(btv,fh,RESOURCE_OVERLAY);
dprintk("switch_overlay: done\n");
return 0;
}
/* ----------------------------------------------------------------------- */
/* video4linux (1) interface */
static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
struct bttv_buffer *buf,
const struct bttv_format *fmt,
unsigned int width, unsigned int height,
enum v4l2_field field)
{
2007-01-19 03:17:39 +08:00
struct bttv_fh *fh = q->priv_data;
int redo_dma_risc = 0;
2007-01-19 03:17:39 +08:00
struct bttv_crop c;
int norm;
int rc;
/* check settings */
if (NULL == fmt)
return -EINVAL;
if (fmt->btformat == BT848_COLOR_FMT_RAW) {
width = RAW_BPL;
height = RAW_LINES*2;
if (width*height > buf->vb.bsize)
return -EINVAL;
buf->vb.size = buf->vb.bsize;
2007-01-19 03:17:39 +08:00
/* Make sure tvnorm and vbi_end remain consistent
until we're done. */
norm = btv->tvnorm;
/* In this mode capturing always starts at defrect.top
(default VDELAY), ignoring cropping parameters. */
if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
return -EINVAL;
}
c.rect = bttv_tvnorms[norm].cropcap.defrect;
} else {
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norm = btv->tvnorm;
c = btv->crop[!!fh->do_crop];
if (width < c.min_scaled_width ||
width > c.max_scaled_width ||
height < c.min_scaled_height)
return -EINVAL;
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switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
case V4L2_FIELD_ALTERNATE:
/* btv->crop counts frame lines. Max. scale
factor is 16:1 for frames, 8:1 for fields. */
if (height * 2 > c.max_scaled_height)
return -EINVAL;
break;
default:
if (height > c.max_scaled_height)
return -EINVAL;
break;
}
buf->vb.size = (width * height * fmt->depth) >> 3;
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
}
/* alloc + fill struct bttv_buffer (if changed) */
if (buf->vb.width != width || buf->vb.height != height ||
buf->vb.field != field ||
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buf->tvnorm != norm || buf->fmt != fmt ||
buf->crop.top != c.rect.top ||
buf->crop.left != c.rect.left ||
buf->crop.width != c.rect.width ||
buf->crop.height != c.rect.height) {
buf->vb.width = width;
buf->vb.height = height;
buf->vb.field = field;
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buf->tvnorm = norm;
buf->fmt = fmt;
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buf->crop = c.rect;
redo_dma_risc = 1;
}
/* alloc risc memory */
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
redo_dma_risc = 1;
if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
goto fail;
}
if (redo_dma_risc)
if (0 != (rc = bttv_buffer_risc(btv,buf)))
goto fail;
buf->vb.state = VIDEOBUF_PREPARED;
return 0;
fail:
bttv_dma_free(q,btv,buf);
return rc;
}
static int
buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
{
struct bttv_fh *fh = q->priv_data;
*size = fh->fmt->depth*fh->width*fh->height >> 3;
if (0 == *count)
*count = gbuffers;
if (*size * *count > gbuffers * gbufsize)
*count = (gbuffers * gbufsize) / *size;
return 0;
}
static int
buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
struct bttv_fh *fh = q->priv_data;
return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
fh->width, fh->height, field);
}
static void
buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
struct bttv_fh *fh = q->priv_data;
struct bttv *btv = fh->btv;
buf->vb.state = VIDEOBUF_QUEUED;
list_add_tail(&buf->vb.queue,&btv->capture);
if (!btv->curr.frame_irq) {
btv->loop_irq |= 1;
bttv_set_dma(btv, 0x03);
}
}
static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
struct bttv_fh *fh = q->priv_data;
bttv_dma_free(q,fh->btv,buf);
}
static const struct videobuf_queue_ops bttv_video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
static void radio_enable(struct bttv *btv)
{
/* Switch to the radio tuner */
if (!btv->has_radio_tuner) {
btv->has_radio_tuner = 1;
bttv_call_all(btv, tuner, s_radio);
btv->audio_input = TVAUDIO_INPUT_RADIO;
audio_input(btv, btv->audio_input);
}
}
static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
unsigned int i;
for (i = 0; i < BTTV_TVNORMS; i++)
if (id & bttv_tvnorms[i].v4l2_id)
break;
if (i == BTTV_TVNORMS)
return -EINVAL;
btv->std = id;
set_tvnorm(btv, i);
return 0;
}
static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
*id = btv->std;
return 0;
}
static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
*id &= V4L2_STD_625_50;
else
*id &= V4L2_STD_525_60;
return 0;
}
static int bttv_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (i->index >= bttv_tvcards[btv->c.type].video_inputs)
return -EINVAL;
i->type = V4L2_INPUT_TYPE_CAMERA;
i->audioset = 0;
if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
sprintf(i->name, "Television");
i->type = V4L2_INPUT_TYPE_TUNER;
i->tuner = 0;
} else if (i->index == btv->svhs) {
sprintf(i->name, "S-Video");
} else {
sprintf(i->name, "Composite%d", i->index);
}
if (i->index == btv->input) {
__u32 dstatus = btread(BT848_DSTATUS);
if (0 == (dstatus & BT848_DSTATUS_PRES))
i->status |= V4L2_IN_ST_NO_SIGNAL;
if (0 == (dstatus & BT848_DSTATUS_HLOC))
i->status |= V4L2_IN_ST_NO_H_LOCK;
}
i->std = BTTV_NORMS;
return 0;
}
static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
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{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
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*i = btv->input;
return 0;
}
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static int bttv_s_input(struct file *file, void *priv, unsigned int i)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (i >= bttv_tvcards[btv->c.type].video_inputs)
return -EINVAL;
set_input(btv, i, btv->tvnorm);
return 0;
}
static int bttv_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (t->index)
return -EINVAL;
bttv_call_all(btv, tuner, s_tuner, t);
if (btv->audio_mode_gpio) {
struct v4l2_tuner copy = *t;
btv->audio_mode_gpio(btv, &copy, 1);
}
return 0;
}
static int bttv_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (f->tuner)
return -EINVAL;
if (f->type == V4L2_TUNER_RADIO)
radio_enable(btv);
f->frequency = f->type == V4L2_TUNER_RADIO ?
btv->radio_freq : btv->tv_freq;
return 0;
}
static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
{
struct v4l2_frequency new_freq = *f;
bttv_call_all(btv, tuner, s_frequency, f);
/* s_frequency may clamp the frequency, so get the actual
frequency before assigning radio/tv_freq. */
bttv_call_all(btv, tuner, g_frequency, &new_freq);
if (new_freq.type == V4L2_TUNER_RADIO) {
radio_enable(btv);
btv->radio_freq = new_freq.frequency;
if (btv->has_tea575x) {
btv->tea.freq = btv->radio_freq;
snd_tea575x_set_freq(&btv->tea);
}
} else {
btv->tv_freq = new_freq.frequency;
}
}
static int bttv_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (f->tuner)
return -EINVAL;
bttv_set_frequency(btv, f);
return 0;
}
static int bttv_log_status(struct file *file, void *f)
{
struct video_device *vdev = video_devdata(file);
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
bttv_call_all(btv, core, log_status);
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int bttv_g_register(struct file *file, void *f,
struct v4l2_dbg_register *reg)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
/* bt848 has a 12-bit register space */
reg->reg &= 0xfff;
reg->val = btread(reg->reg);
reg->size = 1;
return 0;
}
static int bttv_s_register(struct file *file, void *f,
const struct v4l2_dbg_register *reg)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
/* bt848 has a 12-bit register space */
btwrite(reg->val, reg->reg & 0xfff);
return 0;
}
#endif
/* Given cropping boundaries b and the scaled width and height of a
single field or frame, which must not exceed hardware limits, this
function adjusts the cropping parameters c. */
static void
bttv_crop_adjust (struct bttv_crop * c,
const struct v4l2_rect * b,
__s32 width,
__s32 height,
enum v4l2_field field)
{
__s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
__s32 max_left;
__s32 max_top;
if (width < c->min_scaled_width) {
/* Max. hor. scale factor 16:1. */
c->rect.width = width * 16;
} else if (width > c->max_scaled_width) {
/* Min. hor. scale factor 1:1. */
c->rect.width = width;
max_left = b->left + b->width - width;
max_left = min(max_left, (__s32) MAX_HDELAY);
if (c->rect.left > max_left)
c->rect.left = max_left;
}
if (height < c->min_scaled_height) {
/* Max. vert. scale factor 16:1, single fields 8:1. */
c->rect.height = height * 16;
} else if (frame_height > c->max_scaled_height) {
/* Min. vert. scale factor 1:1.
Top and height count field lines times two. */
c->rect.height = (frame_height + 1) & ~1;
max_top = b->top + b->height - c->rect.height;
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if (c->rect.top > max_top)
c->rect.top = max_top;
}
bttv_crop_calc_limits(c);
}
/* Returns an error if scaling to a frame or single field with the given
width and height is not possible with the current cropping parameters
and width aligned according to width_mask. If adjust_size is TRUE the
function may adjust the width and/or height instead, rounding width
to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
also adjust the current cropping parameters to get closer to the
desired image size. */
static int
limit_scaled_size_lock (struct bttv_fh * fh,
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__s32 * width,
__s32 * height,
enum v4l2_field field,
unsigned int width_mask,
unsigned int width_bias,
int adjust_size,
int adjust_crop)
{
struct bttv *btv = fh->btv;
const struct v4l2_rect *b;
struct bttv_crop *c;
__s32 min_width;
__s32 min_height;
__s32 max_width;
__s32 max_height;
int rc;
BUG_ON((int) width_mask >= 0 ||
width_bias >= (unsigned int) -width_mask);
/* Make sure tvnorm, vbi_end and the current cropping parameters
remain consistent until we're done. */
b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
/* Do crop - use current, don't - use default parameters. */
c = &btv->crop[!!fh->do_crop];
if (fh->do_crop
&& adjust_size
&& adjust_crop
&& !locked_btres(btv, VIDEO_RESOURCES)) {
min_width = 48;
min_height = 32;
/* We cannot scale up. When the scaled image is larger
than crop.rect we adjust the crop.rect as required
by the V4L2 spec, hence cropcap.bounds are our limit. */
max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
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max_height = b->height;
/* We cannot capture the same line as video and VBI data.
Note btv->vbi_end is really a minimum, see
bttv_vbi_try_fmt(). */
if (btv->vbi_end > b->top) {
max_height -= btv->vbi_end - b->top;
rc = -EBUSY;
if (min_height > max_height)
goto fail;
}
} else {
rc = -EBUSY;
if (btv->vbi_end > c->rect.top)
goto fail;
min_width = c->min_scaled_width;
min_height = c->min_scaled_height;
max_width = c->max_scaled_width;
max_height = c->max_scaled_height;
adjust_crop = 0;
}
min_width = (min_width - width_mask - 1) & width_mask;
max_width = max_width & width_mask;
/* Max. scale factor is 16:1 for frames, 8:1 for fields. */
min_height = min_height;
/* Min. scale factor is 1:1. */
max_height >>= !V4L2_FIELD_HAS_BOTH(field);
if (adjust_size) {
*width = clamp(*width, min_width, max_width);
*height = clamp(*height, min_height, max_height);
/* Round after clamping to avoid overflow. */
*width = (*width + width_bias) & width_mask;
if (adjust_crop) {
bttv_crop_adjust(c, b, *width, *height, field);
if (btv->vbi_end > c->rect.top) {
/* Move the crop window out of the way. */
c->rect.top = btv->vbi_end;
}
}
} else {
rc = -EINVAL;
if (*width < min_width ||
*height < min_height ||
*width > max_width ||
*height > max_height ||
0 != (*width & ~width_mask))
goto fail;
}
rc = 0; /* success */
fail:
return rc;
}
/* Returns an error if the given overlay window dimensions are not
possible with the current cropping parameters. If adjust_size is
TRUE the function may adjust the window width and/or height
instead, however it always rounds the horizontal position and
width as btcx_align() does. If adjust_crop is TRUE the function
may also adjust the current cropping parameters to get closer
to the desired window size. */
static int
verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
int adjust_size, int adjust_crop)
{
enum v4l2_field field;
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unsigned int width_mask;
int rc;
if (win->w.width < 48)
win->w.width = 48;
if (win->w.height < 32)
win->w.height = 32;
if (win->clipcount > 2048)
win->clipcount = 2048;
win->chromakey = 0;
win->global_alpha = 0;
field = win->field;
switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
case V4L2_FIELD_INTERLACED:
break;
default:
field = V4L2_FIELD_ANY;
break;
}
if (V4L2_FIELD_ANY == field) {
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__s32 height2;
height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
field = (win->w.height > height2)
? V4L2_FIELD_INTERLACED
: V4L2_FIELD_TOP;
}
win->field = field;
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if (NULL == fh->ovfmt)
return -EINVAL;
/* 4-byte alignment. */
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width_mask = ~0;
switch (fh->ovfmt->depth) {
case 8:
case 24:
width_mask = ~3;
break;
case 16:
width_mask = ~1;
break;
case 32:
break;
default:
BUG();
}
win->w.width -= win->w.left & ~width_mask;
win->w.left = (win->w.left - width_mask - 1) & width_mask;
rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
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field, width_mask,
/* width_bias: round down */ 0,
adjust_size, adjust_crop);
if (0 != rc)
return rc;
return 0;
}
static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
struct v4l2_window *win, int fixup)
{
struct v4l2_clip *clips = NULL;
int n,size,retval = 0;
if (NULL == fh->ovfmt)
return -EINVAL;
if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
return -EINVAL;
retval = verify_window_lock(fh, win,
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/* adjust_size */ fixup,
/* adjust_crop */ fixup);
if (0 != retval)
return retval;
/* copy clips -- luckily v4l1 + v4l2 are binary
compatible here ...*/
n = win->clipcount;
size = sizeof(*clips)*(n+4);
clips = kmalloc(size,GFP_KERNEL);
if (NULL == clips)
return -ENOMEM;
if (n > 0) {
if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
kfree(clips);
return -EFAULT;
}
}
/* clip against screen */
if (NULL != btv->fbuf.base)
n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
&win->w, clips, n);
btcx_sort_clips(clips,n);
/* 4-byte alignments */
switch (fh->ovfmt->depth) {
case 8:
case 24:
btcx_align(&win->w, clips, n, 3);
break;
case 16:
btcx_align(&win->w, clips, n, 1);
break;
case 32:
/* no alignment fixups needed */
break;
default:
BUG();
}
kfree(fh->ov.clips);
fh->ov.clips = clips;
fh->ov.nclips = n;
fh->ov.w = win->w;
fh->ov.field = win->field;
fh->ov.setup_ok = 1;
btv->init.ov.w.width = win->w.width;
btv->init.ov.w.height = win->w.height;
btv->init.ov.field = win->field;
/* update overlay if needed */
retval = 0;
if (check_btres(fh, RESOURCE_OVERLAY)) {
struct bttv_buffer *new;
new = videobuf_sg_alloc(sizeof(*new));
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new->crop = btv->crop[!!fh->do_crop].rect;
bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
retval = bttv_switch_overlay(btv,fh,new);
}
return retval;
}
/* ----------------------------------------------------------------------- */
static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
{
struct videobuf_queue* q = NULL;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
q = &fh->cap;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
q = &fh->vbi;
break;
default:
BUG();
}
return q;
}
static int bttv_resource(struct bttv_fh *fh)
{
int res = 0;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
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res = RESOURCE_VIDEO_STREAM;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
res = RESOURCE_VBI;
break;
default:
BUG();
}
return res;
}
static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
{
struct videobuf_queue *q = bttv_queue(fh);
int res = bttv_resource(fh);
if (check_btres(fh,res))
return -EBUSY;
if (videobuf_queue_is_busy(q))
return -EBUSY;
fh->type = type;
return 0;
}
static void
pix_format_set_size (struct v4l2_pix_format * f,
const struct bttv_format * fmt,
unsigned int width,
unsigned int height)
{
f->width = width;
f->height = height;
if (fmt->flags & FORMAT_FLAGS_PLANAR) {
f->bytesperline = width; /* Y plane */
f->sizeimage = (width * height * fmt->depth) >> 3;
} else {
f->bytesperline = (width * fmt->depth) >> 3;
f->sizeimage = height * f->bytesperline;
}
}
static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct bttv_fh *fh = priv;
pix_format_set_size(&f->fmt.pix, fh->fmt,
fh->width, fh->height);
f->fmt.pix.field = fh->cap.field;
f->fmt.pix.pixelformat = fh->fmt->fourcc;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct bttv_fh *fh = priv;
f->fmt.win.w = fh->ov.w;
f->fmt.win.field = fh->ov.field;
return 0;
}
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static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt,
unsigned int *width_mask,
unsigned int *width_bias)
{
if (fmt->flags & FORMAT_FLAGS_PLANAR) {
*width_mask = ~15; /* width must be a multiple of 16 pixels */
*width_bias = 8; /* nearest */
} else {
*width_mask = ~3; /* width must be a multiple of 4 pixels */
*width_bias = 2; /* nearest */
}
}
static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
const struct bttv_format *fmt;
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
enum v4l2_field field;
__s32 width, height;
__s32 height2;
unsigned int width_mask, width_bias;
int rc;
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (NULL == fmt)
return -EINVAL;
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field = f->fmt.pix.field;
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switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
case V4L2_FIELD_ALTERNATE:
case V4L2_FIELD_INTERLACED:
break;
case V4L2_FIELD_SEQ_BT:
case V4L2_FIELD_SEQ_TB:
if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
field = V4L2_FIELD_SEQ_TB;
break;
}
/* fall through */
default: /* FIELD_ANY case */
height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
field = (f->fmt.pix.height > height2)
? V4L2_FIELD_INTERLACED
: V4L2_FIELD_BOTTOM;
break;
}
width = f->fmt.pix.width;
height = f->fmt.pix.height;
bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
rc = limit_scaled_size_lock(fh, &width, &height, field,
width_mask, width_bias,
/* adjust_size */ 1,
/* adjust_crop */ 0);
if (0 != rc)
return rc;
/* update data for the application */
f->fmt.pix.field = field;
pix_format_set_size(&f->fmt.pix, fmt, width, height);
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct bttv_fh *fh = priv;
verify_window_lock(fh, &f->fmt.win,
/* adjust_size */ 1,
/* adjust_crop */ 0);
return 0;
}
static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
int retval;
const struct bttv_format *fmt;
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
__s32 width, height;
unsigned int width_mask, width_bias;
enum v4l2_field field;
retval = bttv_switch_type(fh, f->type);
if (0 != retval)
return retval;
retval = bttv_try_fmt_vid_cap(file, priv, f);
if (0 != retval)
return retval;
width = f->fmt.pix.width;
height = f->fmt.pix.height;
field = f->fmt.pix.field;
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
width_mask, width_bias,
/* adjust_size */ 1,
/* adjust_crop */ 1);
if (0 != retval)
return retval;
f->fmt.pix.field = field;
/* update our state informations */
fh->fmt = fmt;
fh->cap.field = f->fmt.pix.field;
fh->cap.last = V4L2_FIELD_NONE;
fh->width = f->fmt.pix.width;
fh->height = f->fmt.pix.height;
btv->init.fmt = fmt;
btv->init.width = f->fmt.pix.width;
btv->init.height = f->fmt.pix.height;
return 0;
}
static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
return setup_window_lock(fh, btv, &f->fmt.win, 1);
}
static int bttv_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct video_device *vdev = video_devdata(file);
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (0 == v4l2)
return -EINVAL;
strlcpy(cap->driver, "bttv", sizeof(cap->driver));
strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card));
snprintf(cap->bus_info, sizeof(cap->bus_info),
"PCI:%s", pci_name(btv->c.pci));
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_DEVICE_CAPS;
if (no_overlay <= 0)
cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
if (video_is_registered(&btv->vbi_dev))
cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
if (video_is_registered(&btv->radio_dev))
cap->capabilities |= V4L2_CAP_RADIO;
/*
* No need to lock here: those vars are initialized during board
* probe and remains untouched during the rest of the driver lifecycle
*/
if (btv->has_saa6588)
cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
if (btv->tuner_type != TUNER_ABSENT)
cap->capabilities |= V4L2_CAP_TUNER;
if (vdev->vfl_type == VFL_TYPE_GRABBER)
cap->device_caps = cap->capabilities &
(V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_VIDEO_OVERLAY |
V4L2_CAP_TUNER);
else if (vdev->vfl_type == VFL_TYPE_VBI)
cap->device_caps = cap->capabilities &
(V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_TUNER);
else {
cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
if (btv->has_saa6588)
cap->device_caps |= V4L2_CAP_READWRITE |
V4L2_CAP_RDS_CAPTURE;
if (btv->has_tea575x)
cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
}
return 0;
}
static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
{
int index = -1, i;
for (i = 0; i < FORMATS; i++) {
if (formats[i].fourcc != -1)
index++;
if ((unsigned int)index == f->index)
break;
}
if (FORMATS == i)
return -EINVAL;
f->pixelformat = formats[i].fourcc;
strlcpy(f->description, formats[i].name, sizeof(f->description));
return i;
}
static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
int rc = bttv_enum_fmt_cap_ovr(f);
if (rc < 0)
return rc;
return 0;
}
static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
int rc;
if (no_overlay > 0) {
pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
rc = bttv_enum_fmt_cap_ovr(f);
if (rc < 0)
return rc;
if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
return -EINVAL;
return 0;
}
static int bttv_g_fbuf(struct file *file, void *f,
struct v4l2_framebuffer *fb)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
*fb = btv->fbuf;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
fb->flags = V4L2_FBUF_FLAG_PRIMARY;
if (fh->ovfmt)
fb->fmt.pixelformat = fh->ovfmt->fourcc;
return 0;
}
static int bttv_overlay(struct file *file, void *f, unsigned int on)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
struct bttv_buffer *new;
int retval = 0;
if (on) {
/* verify args */
if (unlikely(!btv->fbuf.base)) {
return -EINVAL;
}
if (unlikely(!fh->ov.setup_ok)) {
dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
retval = -EINVAL;
}
if (retval)
return retval;
}
if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
return -EBUSY;
if (on) {
fh->ov.tvnorm = btv->tvnorm;
new = videobuf_sg_alloc(sizeof(*new));
new->crop = btv->crop[!!fh->do_crop].rect;
bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
} else {
new = NULL;
}
/* switch over */
retval = bttv_switch_overlay(btv, fh, new);
return retval;
}
static int bttv_s_fbuf(struct file *file, void *f,
const struct v4l2_framebuffer *fb)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
const struct bttv_format *fmt;
int retval;
if (!capable(CAP_SYS_ADMIN) &&
!capable(CAP_SYS_RAWIO))
return -EPERM;
/* check args */
fmt = format_by_fourcc(fb->fmt.pixelformat);
if (NULL == fmt)
return -EINVAL;
if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
return -EINVAL;
retval = -EINVAL;
if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
__s32 width = fb->fmt.width;
__s32 height = fb->fmt.height;
retval = limit_scaled_size_lock(fh, &width, &height,
V4L2_FIELD_INTERLACED,
/* width_mask */ ~3,
/* width_bias */ 2,
/* adjust_size */ 0,
/* adjust_crop */ 0);
if (0 != retval)
return retval;
}
/* ok, accept it */
btv->fbuf.base = fb->base;
btv->fbuf.fmt.width = fb->fmt.width;
btv->fbuf.fmt.height = fb->fmt.height;
if (0 != fb->fmt.bytesperline)
btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
else
btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
retval = 0;
fh->ovfmt = fmt;
btv->init.ovfmt = fmt;
if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
fh->ov.w.left = 0;
fh->ov.w.top = 0;
fh->ov.w.width = fb->fmt.width;
fh->ov.w.height = fb->fmt.height;
btv->init.ov.w.width = fb->fmt.width;
btv->init.ov.w.height = fb->fmt.height;
kfree(fh->ov.clips);
fh->ov.clips = NULL;
fh->ov.nclips = 0;
if (check_btres(fh, RESOURCE_OVERLAY)) {
struct bttv_buffer *new;
new = videobuf_sg_alloc(sizeof(*new));
new->crop = btv->crop[!!fh->do_crop].rect;
bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
retval = bttv_switch_overlay(btv, fh, new);
}
}
return retval;
}
static int bttv_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
struct bttv_fh *fh = priv;
return videobuf_reqbufs(bttv_queue(fh), p);
}
static int bttv_querybuf(struct file *file, void *priv,
struct v4l2_buffer *b)
{
struct bttv_fh *fh = priv;
return videobuf_querybuf(bttv_queue(fh), b);
}
static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
int res = bttv_resource(fh);
if (!check_alloc_btres_lock(btv, fh, res))
return -EBUSY;
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return videobuf_qbuf(bttv_queue(fh), b);
}
static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct bttv_fh *fh = priv;
return videobuf_dqbuf(bttv_queue(fh), b,
file->f_flags & O_NONBLOCK);
}
static int bttv_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
int res = bttv_resource(fh);
if (!check_alloc_btres_lock(btv, fh, res))
return -EBUSY;
return videobuf_streamon(bttv_queue(fh));
}
static int bttv_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
int retval;
int res = bttv_resource(fh);
retval = videobuf_streamoff(bttv_queue(fh));
if (retval < 0)
return retval;
free_btres_lock(btv, fh, res);
return 0;
}
static int bttv_g_parm(struct file *file, void *f,
struct v4l2_streamparm *parm)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
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if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
parm->parm.capture.readbuffers = gbuffers;
v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
&parm->parm.capture.timeperframe);
return 0;
}
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static int bttv_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
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if (0 != t->index)
return -EINVAL;
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t->rxsubchans = V4L2_TUNER_SUB_MONO;
t->capability = V4L2_TUNER_CAP_NORM;
bttv_call_all(btv, tuner, g_tuner, t);
strcpy(t->name, "Television");
t->type = V4L2_TUNER_ANALOG_TV;
if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
t->signal = 0xffff;
if (btv->audio_mode_gpio)
btv->audio_mode_gpio(btv, t, 0);
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return 0;
}
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static int bttv_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cap)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
/* defrect and bounds are set via g_selection */
cap->pixelaspect = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect;
return 0;
}
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static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
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switch (sel->target) {
case V4L2_SEL_TGT_CROP:
/*
* No fh->do_crop = 1; because btv->crop[1] may be
* inconsistent with fh->width or fh->height and apps
* do not expect a change here.
*/
sel->r = btv->crop[!!fh->do_crop].rect;
break;
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect;
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds;
break;
default:
return -EINVAL;
}
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return 0;
}
static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
{
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
const struct v4l2_rect *b;
int retval;
struct bttv_crop c;
__s32 b_left;
__s32 b_top;
__s32 b_right;
__s32 b_bottom;
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if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
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/* Make sure tvnorm, vbi_end and the current cropping
parameters remain consistent until we're done. Note
read() may change vbi_end in check_alloc_btres_lock(). */
retval = -EBUSY;
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if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
return retval;
}
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b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
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b_left = b->left;
b_right = b_left + b->width;
b_bottom = b->top + b->height;
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b_top = max(b->top, btv->vbi_end);
if (b_top + 32 >= b_bottom) {
return retval;
}
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/* Min. scaled size 48 x 32. */
c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48);
c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
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c.rect.width = clamp_t(s32, sel->r.width,
48, b_right - c.rect.left);
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c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32);
/* Top and height must be a multiple of two. */
c.rect.top = (c.rect.top + 1) & ~1;
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c.rect.height = clamp_t(s32, sel->r.height,
32, b_bottom - c.rect.top);
c.rect.height = (c.rect.height + 1) & ~1;
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bttv_crop_calc_limits(&c);
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sel->r = c.rect;
btv->crop[1] = c;
fh->do_crop = 1;
if (fh->width < c.min_scaled_width) {
fh->width = c.min_scaled_width;
btv->init.width = c.min_scaled_width;
} else if (fh->width > c.max_scaled_width) {
fh->width = c.max_scaled_width;
btv->init.width = c.max_scaled_width;
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}
if (fh->height < c.min_scaled_height) {
fh->height = c.min_scaled_height;
btv->init.height = c.min_scaled_height;
} else if (fh->height > c.max_scaled_height) {
fh->height = c.max_scaled_height;
btv->init.height = c.max_scaled_height;
}
return 0;
}
static ssize_t bttv_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct bttv_fh *fh = file->private_data;
int retval = 0;
if (fh->btv->errors)
bttv_reinit_bt848(fh->btv);
dprintk("%d: read count=%d type=%s\n",
fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
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/* VIDEO_READ in use by another fh,
or VIDEO_STREAM by any fh. */
return -EBUSY;
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}
retval = videobuf_read_one(&fh->cap, data, count, ppos,
file->f_flags & O_NONBLOCK);
free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
return -EBUSY;
retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
file->f_flags & O_NONBLOCK);
break;
default:
BUG();
}
return retval;
}
static unsigned int bttv_poll(struct file *file, poll_table *wait)
{
struct bttv_fh *fh = file->private_data;
struct bttv_buffer *buf;
enum v4l2_field field;
unsigned int rc = 0;
unsigned long req_events = poll_requested_events(wait);
if (v4l2_event_pending(&fh->fh))
rc = POLLPRI;
else if (req_events & POLLPRI)
poll_wait(file, &fh->fh.wait, wait);
if (!(req_events & (POLLIN | POLLRDNORM)))
return rc;
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
return rc | POLLERR;
return rc | videobuf_poll_stream(file, &fh->vbi, wait);
}
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if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
/* streaming capture */
if (list_empty(&fh->cap.stream))
return rc | POLLERR;
buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
} else {
/* read() capture */
if (NULL == fh->cap.read_buf) {
/* need to capture a new frame */
if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
return rc | POLLERR;
fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
if (NULL == fh->cap.read_buf)
return rc | POLLERR;
fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
field = videobuf_next_field(&fh->cap);
if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
kfree (fh->cap.read_buf);
fh->cap.read_buf = NULL;
return rc | POLLERR;
}
fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
fh->cap.read_off = 0;
}
buf = (struct bttv_buffer*)fh->cap.read_buf;
}
poll_wait(file, &buf->vb.done, wait);
if (buf->vb.state == VIDEOBUF_DONE ||
buf->vb.state == VIDEOBUF_ERROR)
rc = rc | POLLIN|POLLRDNORM;
return rc;
}
static int bttv_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct bttv *btv = video_drvdata(file);
struct bttv_fh *fh;
enum v4l2_buf_type type = 0;
dprintk("open dev=%s\n", video_device_node_name(vdev));
if (vdev->vfl_type == VFL_TYPE_GRABBER) {
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
} else if (vdev->vfl_type == VFL_TYPE_VBI) {
type = V4L2_BUF_TYPE_VBI_CAPTURE;
} else {
WARN_ON(1);
return -ENODEV;
}
dprintk("%d: open called (type=%s)\n",
btv->c.nr, v4l2_type_names[type]);
/* allocate per filehandle data */
fh = kmalloc(sizeof(*fh), GFP_KERNEL);
if (unlikely(!fh))
return -ENOMEM;
btv->users++;
file->private_data = fh;
*fh = btv->init;
v4l2_fh_init(&fh->fh, vdev);
fh->type = type;
fh->ov.setup_ok = 0;
videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
&btv->c.pci->dev, &btv->s_lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct bttv_buffer),
fh, &btv->lock);
videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
&btv->c.pci->dev, &btv->s_lock,
V4L2_BUF_TYPE_VBI_CAPTURE,
V4L2_FIELD_SEQ_TB,
sizeof(struct bttv_buffer),
fh, &btv->lock);
set_tvnorm(btv,btv->tvnorm);
set_input(btv, btv->input, btv->tvnorm);
audio_mute(btv, btv->mute);
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/* The V4L2 spec requires one global set of cropping parameters
which only change on request. These are stored in btv->crop[1].
However for compatibility with V4L apps and cropping unaware
V4L2 apps we now reset the cropping parameters as seen through
this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks
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will use btv->crop[0], the default cropping parameters for the
current video standard, and VIDIOC_S_FMT will not implicitely
change the cropping parameters until VIDIOC_S_SELECTION has been
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called. */
fh->do_crop = !reset_crop; /* module parameter */
/* Likewise there should be one global set of VBI capture
parameters, but for compatibility with V4L apps and earlier
driver versions each fh has its own parameters. */
bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
bttv_field_count(btv);
v4l2_fh_add(&fh->fh);
return 0;
}
static int bttv_release(struct file *file)
{
struct bttv_fh *fh = file->private_data;
struct bttv *btv = fh->btv;
/* turn off overlay */
if (check_btres(fh, RESOURCE_OVERLAY))
bttv_switch_overlay(btv,fh,NULL);
/* stop video capture */
2007-01-19 03:17:39 +08:00
if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
videobuf_streamoff(&fh->cap);
free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
}
if (fh->cap.read_buf) {
buffer_release(&fh->cap,fh->cap.read_buf);
kfree(fh->cap.read_buf);
}
2007-01-19 03:17:39 +08:00
if (check_btres(fh, RESOURCE_VIDEO_READ)) {
free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
2007-01-19 03:17:39 +08:00
}
/* stop vbi capture */
if (check_btres(fh, RESOURCE_VBI)) {
videobuf_stop(&fh->vbi);
free_btres_lock(btv,fh,RESOURCE_VBI);
}
/* free stuff */
videobuf_mmap_free(&fh->cap);
videobuf_mmap_free(&fh->vbi);
file->private_data = NULL;
btv->users--;
bttv_field_count(btv);
if (!btv->users)
audio_mute(btv, btv->mute);
v4l2_fh_del(&fh->fh);
v4l2_fh_exit(&fh->fh);
kfree(fh);
return 0;
}
static int
bttv_mmap(struct file *file, struct vm_area_struct *vma)
{
struct bttv_fh *fh = file->private_data;
dprintk("%d: mmap type=%s 0x%lx+%ld\n",
fh->btv->c.nr, v4l2_type_names[fh->type],
vma->vm_start, vma->vm_end - vma->vm_start);
return videobuf_mmap_mapper(bttv_queue(fh),vma);
}
static const struct v4l2_file_operations bttv_fops =
{
.owner = THIS_MODULE,
.open = bttv_open,
.release = bttv_release,
.unlocked_ioctl = video_ioctl2,
.read = bttv_read,
.mmap = bttv_mmap,
.poll = bttv_poll,
};
static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
.vidioc_querycap = bttv_querycap,
.vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
.vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
.vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
.vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
.vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
.vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
.vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
.vidioc_cropcap = bttv_cropcap,
.vidioc_reqbufs = bttv_reqbufs,
.vidioc_querybuf = bttv_querybuf,
.vidioc_qbuf = bttv_qbuf,
.vidioc_dqbuf = bttv_dqbuf,
.vidioc_s_std = bttv_s_std,
.vidioc_g_std = bttv_g_std,
.vidioc_enum_input = bttv_enum_input,
.vidioc_g_input = bttv_g_input,
.vidioc_s_input = bttv_s_input,
.vidioc_streamon = bttv_streamon,
.vidioc_streamoff = bttv_streamoff,
.vidioc_g_tuner = bttv_g_tuner,
.vidioc_s_tuner = bttv_s_tuner,
.vidioc_g_selection = bttv_g_selection,
.vidioc_s_selection = bttv_s_selection,
.vidioc_g_fbuf = bttv_g_fbuf,
.vidioc_s_fbuf = bttv_s_fbuf,
.vidioc_overlay = bttv_overlay,
.vidioc_g_parm = bttv_g_parm,
.vidioc_g_frequency = bttv_g_frequency,
.vidioc_s_frequency = bttv_s_frequency,
.vidioc_log_status = bttv_log_status,
.vidioc_querystd = bttv_querystd,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = bttv_g_register,
.vidioc_s_register = bttv_s_register,
#endif
};
static struct video_device bttv_video_template = {
.fops = &bttv_fops,
.ioctl_ops = &bttv_ioctl_ops,
.tvnorms = BTTV_NORMS,
};
/* ----------------------------------------------------------------------- */
/* radio interface */
static int radio_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct bttv *btv = video_drvdata(file);
struct bttv_fh *fh;
dprintk("open dev=%s\n", video_device_node_name(vdev));
dprintk("%d: open called (radio)\n", btv->c.nr);
/* allocate per filehandle data */
fh = kmalloc(sizeof(*fh), GFP_KERNEL);
if (unlikely(!fh))
return -ENOMEM;
file->private_data = fh;
*fh = btv->init;
v4l2_fh_init(&fh->fh, vdev);
btv->radio_user++;
audio_mute(btv, btv->mute);
v4l2_fh_add(&fh->fh);
return 0;
}
static int radio_release(struct file *file)
{
struct bttv_fh *fh = file->private_data;
struct bttv *btv = fh->btv;
struct saa6588_command cmd;
file->private_data = NULL;
v4l2_fh_del(&fh->fh);
v4l2_fh_exit(&fh->fh);
kfree(fh);
btv->radio_user--;
bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
if (btv->radio_user == 0)
btv->has_radio_tuner = 0;
return 0;
}
static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (0 != t->index)
return -EINVAL;
strcpy(t->name, "Radio");
t->type = V4L2_TUNER_RADIO;
radio_enable(btv);
bttv_call_all(btv, tuner, g_tuner, t);
if (btv->audio_mode_gpio)
btv->audio_mode_gpio(btv, t, 0);
if (btv->has_tea575x)
return snd_tea575x_g_tuner(&btv->tea, t);
return 0;
}
static int radio_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (0 != t->index)
return -EINVAL;
radio_enable(btv);
bttv_call_all(btv, tuner, s_tuner, t);
return 0;
}
static int radio_s_hw_freq_seek(struct file *file, void *priv,
const struct v4l2_hw_freq_seek *a)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (btv->has_tea575x)
return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
return -ENOTTY;
}
static int radio_enum_freq_bands(struct file *file, void *priv,
struct v4l2_frequency_band *band)
{
struct bttv_fh *fh = priv;
struct bttv *btv = fh->btv;
if (btv->has_tea575x)
return snd_tea575x_enum_freq_bands(&btv->tea, band);
return -ENOTTY;
}
static ssize_t radio_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct bttv_fh *fh = file->private_data;
struct bttv *btv = fh->btv;
struct saa6588_command cmd;
cmd.block_count = count / 3;
cmd.nonblocking = file->f_flags & O_NONBLOCK;
cmd.buffer = data;
cmd.instance = file;
cmd.result = -ENODEV;
radio_enable(btv);
bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
return cmd.result;
}
static unsigned int radio_poll(struct file *file, poll_table *wait)
{
struct bttv_fh *fh = file->private_data;
struct bttv *btv = fh->btv;
unsigned long req_events = poll_requested_events(wait);
struct saa6588_command cmd;
unsigned int res = 0;
if (v4l2_event_pending(&fh->fh))
res = POLLPRI;
else if (req_events & POLLPRI)
poll_wait(file, &fh->fh.wait, wait);
radio_enable(btv);
cmd.instance = file;
cmd.event_list = wait;
cmd.result = res;
bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
return cmd.result;
}
static const struct v4l2_file_operations radio_fops =
{
.owner = THIS_MODULE,
.open = radio_open,
.read = radio_read,
.release = radio_release,
.unlocked_ioctl = video_ioctl2,
.poll = radio_poll,
};
static const struct v4l2_ioctl_ops radio_ioctl_ops = {
.vidioc_querycap = bttv_querycap,
.vidioc_log_status = bttv_log_status,
.vidioc_g_tuner = radio_g_tuner,
.vidioc_s_tuner = radio_s_tuner,
.vidioc_g_frequency = bttv_g_frequency,
.vidioc_s_frequency = bttv_s_frequency,
.vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
.vidioc_enum_freq_bands = radio_enum_freq_bands,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static struct video_device radio_template = {
.fops = &radio_fops,
.ioctl_ops = &radio_ioctl_ops,
};
/* ----------------------------------------------------------------------- */
/* some debug code */
static int bttv_risc_decode(u32 risc)
{
static char *instr[16] = {
[ BT848_RISC_WRITE >> 28 ] = "write",
[ BT848_RISC_SKIP >> 28 ] = "skip",
[ BT848_RISC_WRITEC >> 28 ] = "writec",
[ BT848_RISC_JUMP >> 28 ] = "jump",
[ BT848_RISC_SYNC >> 28 ] = "sync",
[ BT848_RISC_WRITE123 >> 28 ] = "write123",
[ BT848_RISC_SKIP123 >> 28 ] = "skip123",
[ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
};
static int incr[16] = {
[ BT848_RISC_WRITE >> 28 ] = 2,
[ BT848_RISC_JUMP >> 28 ] = 2,
[ BT848_RISC_SYNC >> 28 ] = 2,
[ BT848_RISC_WRITE123 >> 28 ] = 5,
[ BT848_RISC_SKIP123 >> 28 ] = 2,
[ BT848_RISC_WRITE1S23 >> 28 ] = 3,
};
static char *bits[] = {
"be0", "be1", "be2", "be3/resync",
"set0", "set1", "set2", "set3",
"clr0", "clr1", "clr2", "clr3",
"irq", "res", "eol", "sol",
};
int i;
pr_cont("0x%08x [ %s", risc,
instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
if (risc & (1 << (i + 12)))
pr_cont(" %s", bits[i]);
pr_cont(" count=%d ]\n", risc & 0xfff);
return incr[risc >> 28] ? incr[risc >> 28] : 1;
}
static void bttv_risc_disasm(struct bttv *btv,
struct btcx_riscmem *risc)
{
unsigned int i,j,n;
pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
for (i = 0; i < (risc->size >> 2); i += n) {
pr_info("%s: 0x%lx: ",
btv->c.v4l2_dev.name,
(unsigned long)(risc->dma + (i<<2)));
n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
for (j = 1; j < n; j++)
pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
btv->c.v4l2_dev.name,
(unsigned long)(risc->dma + ((i+j)<<2)),
risc->cpu[i+j], j);
if (0 == risc->cpu[i])
break;
}
}
static void bttv_print_riscaddr(struct bttv *btv)
{
pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
pr_info(" vbi : o=%08llx e=%08llx\n",
btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
pr_info(" cap : o=%08llx e=%08llx\n",
btv->curr.top
? (unsigned long long)btv->curr.top->top.dma : 0,
btv->curr.bottom
? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
pr_info(" scr : o=%08llx e=%08llx\n",
btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
bttv_risc_disasm(btv, &btv->main);
}
/* ----------------------------------------------------------------------- */
/* irq handler */
static char *irq_name[] = {
"FMTCHG", // format change detected (525 vs. 625)
"VSYNC", // vertical sync (new field)
"HSYNC", // horizontal sync
"OFLOW", // chroma/luma AGC overflow
"HLOCK", // horizontal lock changed
"VPRES", // video presence changed
"6", "7",
"I2CDONE", // hw irc operation finished
"GPINT", // gpio port triggered irq
"10",
"RISCI", // risc instruction triggered irq
"FBUS", // pixel data fifo dropped data (high pci bus latencies)
"FTRGT", // pixel data fifo overrun
"FDSR", // fifo data stream resyncronisation
"PPERR", // parity error (data transfer)
"RIPERR", // parity error (read risc instructions)
"PABORT", // pci abort
"OCERR", // risc instruction error
"SCERR", // syncronisation error
};
static void bttv_print_irqbits(u32 print, u32 mark)
{
unsigned int i;
pr_cont("bits:");
for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
if (print & (1 << i))
pr_cont(" %s", irq_name[i]);
if (mark & (1 << i))
pr_cont("*");
}
}
static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
{
pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
btv->c.nr,
(unsigned long)btv->main.dma,
(unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
(unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
(unsigned long)rc);
if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
pr_notice("%d: Oh, there (temporarily?) is no input signal. Ok, then this is harmless, don't worry ;)\n",
btv->c.nr);
return;
}
pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
btv->c.nr);
pr_notice("%d: Lets try to catch the culpit red-handed ...\n",
btv->c.nr);
dump_stack();
}
static int
bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
{
struct bttv_buffer *item;
memset(set,0,sizeof(*set));
/* capture request ? */
if (!list_empty(&btv->capture)) {
set->frame_irq = 1;
item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
if (V4L2_FIELD_HAS_TOP(item->vb.field))
set->top = item;
if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
set->bottom = item;
/* capture request for other field ? */
if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
(item->vb.queue.next != &btv->capture)) {
item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
V4L/DVB (13169): bttv: Fix potential out-of-order field processing There is a subtle interaction in the bttv driver which can result in fields being repeatedly processed out of order. This is a problem specifically when running in V4L2_FIELD_ALTERNATE mode (probably the most common case). 1. The determination of which fields are associated with which buffers happens in videobuf, before the bttv driver gets a chance to queue the corresponding DMA. Thus by the point when the DMA is queued for a given buffer, the algorithm has to do the queuing based on the buffer's already assigned field type - not based on which field is "next" in the video stream. 2. The driver normally tries to queue both the top and bottom fields at the same time (see bttv_irq_next_video()). It tries to sort out top vs bottom by looking at the field type for the next 2 available buffers and assigning them appropriately. 3. However the bttv driver *always* actually processes the top field first. There's even an interrupt set aside for specifically recognizing when the top field has been processed so that it can be marked done even while the bottom field is still being DMAed. Given all of the above, if one gets into a situation where bttv_irq_next_video() gets entered when the first available buffer has been pre-associated as a bottom field, then the function is going to process the buffers out of order. That first available buffer will be put into the bottom field slot and the buffer after that will be put into the top field slot. Problem is, since the top field is always processed first by the driver, then that second buffer (the one after the first available buffer) will be the first one to be finished. Because of the strict fifo handling of all video buffers, then that top field won't be seen by the app until after the bottom field is also processed. Worse still, the app will get back the chronologically later bottom field first, *before* the top field is received. The buffer's timestamps will even be backwards. While not fatal to most TV apps, this behavior can subtlely degrade userspace deinterlacing (probably will cause jitter). That's probably why it has gone unnoticed. But it will also cause serious problems if the app in question discards all but the latest received buffer (a latency minimizing tactic) - causing one field to only ever be displayed since the other is now always late. Unfortunately once you get into this state, you're stuck this way - because having consumed two buffers, now the next time around the "first" available buffer will again be a bottom field and the same thing happens. How can we get into this state? In a perfect world, where there's always a few free buffers queued to the driver, it should be impossible. However if something disrupts streaming, e.g. if the userspace app can't queue free buffers fast enough for a moment due perhaps to a CPU scheduling glitch, then the driver can get momentarily starved and some number of fields will be dropped. That's OK. But if an odd number of fields get dropped, then that "first" available buffer might be the bottom field and now we're stuck... This patch fixes that problem by deliberately only setting up a single field for one frame if we don't get a top field as the first available buffer. By purposely skipping the other field, then we only handle a single buffer thus bringing things back into proper sync (i.e. top field first) for the next frame. To do this we just drop the few lines in bttv_irq_next_video() that attempt to set up the second buffer when that second buffer isn't for the bottom field. This is definitely a problem in when in V4L2_FIELD_ALTERNATE mode. In the other modes this change either has no effect or doesn't harm things any further anyway. Signed-off-by: Mike Isely <isely@pobox.com> CC: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-21 23:09:08 +08:00
/* Mike Isely <isely@pobox.com> - Only check
* and set up the bottom field in the logic
* below. Don't ever do the top field. This
* of course means that if we set up the
* bottom field in the above code that we'll
* actually skip a field. But that's OK.
* Having processed only a single buffer this
* time, then the next time around the first
* available buffer should be for a top field.
* That will then cause us here to set up a
* top then a bottom field in the normal way.
* The alternative to this understanding is
* that we set up the second available buffer
* as a top field, but that's out of order
* since this driver always processes the top
* field first - the effect will be the two
* buffers being returned in the wrong order,
* with the second buffer also being delayed
* by one field time (owing to the fifo nature
* of videobuf). Worse still, we'll be stuck
* doing fields out of order now every time
* until something else causes a field to be
* dropped. By effectively forcing a field to
* drop this way then we always get back into
* sync within a single frame time. (Out of
* order fields can screw up deinterlacing
* algorithms.) */
if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
if (NULL == set->bottom &&
V4L2_FIELD_BOTTOM == item->vb.field) {
set->bottom = item;
}
if (NULL != set->top && NULL != set->bottom)
set->top_irq = 2;
}
}
}
/* screen overlay ? */
if (NULL != btv->screen) {
if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
if (NULL == set->top && NULL == set->bottom) {
set->top = btv->screen;
set->bottom = btv->screen;
}
} else {
if (V4L2_FIELD_TOP == btv->screen->vb.field &&
NULL == set->top) {
set->top = btv->screen;
}
if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
NULL == set->bottom) {
set->bottom = btv->screen;
}
}
}
dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
btv->c.nr, set->top, set->bottom,
btv->screen, set->frame_irq, set->top_irq);
return 0;
}
static void
bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
struct bttv_buffer_set *curr, unsigned int state)
{
struct timeval ts;
v4l2_get_timestamp(&ts);
if (wakeup->top == wakeup->bottom) {
if (NULL != wakeup->top && curr->top != wakeup->top) {
if (irq_debug > 1)
pr_debug("%d: wakeup: both=%p\n",
btv->c.nr, wakeup->top);
wakeup->top->vb.ts = ts;
wakeup->top->vb.field_count = btv->field_count;
wakeup->top->vb.state = state;
wake_up(&wakeup->top->vb.done);
}
} else {
if (NULL != wakeup->top && curr->top != wakeup->top) {
if (irq_debug > 1)
pr_debug("%d: wakeup: top=%p\n",
btv->c.nr, wakeup->top);
wakeup->top->vb.ts = ts;
wakeup->top->vb.field_count = btv->field_count;
wakeup->top->vb.state = state;
wake_up(&wakeup->top->vb.done);
}
if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
if (irq_debug > 1)
pr_debug("%d: wakeup: bottom=%p\n",
btv->c.nr, wakeup->bottom);
wakeup->bottom->vb.ts = ts;
wakeup->bottom->vb.field_count = btv->field_count;
wakeup->bottom->vb.state = state;
wake_up(&wakeup->bottom->vb.done);
}
}
}
static void
bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
unsigned int state)
{
if (NULL == wakeup)
return;
v4l2_get_timestamp(&wakeup->vb.ts);
wakeup->vb.field_count = btv->field_count;
wakeup->vb.state = state;
wake_up(&wakeup->vb.done);
}
static void bttv_irq_timeout(struct timer_list *t)
{
struct bttv *btv = from_timer(btv, t, timeout);
struct bttv_buffer_set old,new;
struct bttv_buffer *ovbi;
struct bttv_buffer *item;
unsigned long flags;
if (bttv_verbose) {
pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
btread(BT848_RISC_COUNT));
bttv_print_irqbits(btread(BT848_INT_STAT),0);
pr_cont("\n");
}
spin_lock_irqsave(&btv->s_lock,flags);
/* deactivate stuff */
memset(&new,0,sizeof(new));
old = btv->curr;
ovbi = btv->cvbi;
btv->curr = new;
btv->cvbi = NULL;
btv->loop_irq = 0;
bttv_buffer_activate_video(btv, &new);
bttv_buffer_activate_vbi(btv, NULL);
bttv_set_dma(btv, 0);
/* wake up */
bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
/* cancel all outstanding capture / vbi requests */
while (!list_empty(&btv->capture)) {
item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
list_del(&item->vb.queue);
item->vb.state = VIDEOBUF_ERROR;
wake_up(&item->vb.done);
}
while (!list_empty(&btv->vcapture)) {
item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
list_del(&item->vb.queue);
item->vb.state = VIDEOBUF_ERROR;
wake_up(&item->vb.done);
}
btv->errors++;
spin_unlock_irqrestore(&btv->s_lock,flags);
}
static void
bttv_irq_wakeup_top(struct bttv *btv)
{
struct bttv_buffer *wakeup = btv->curr.top;
if (NULL == wakeup)
return;
spin_lock(&btv->s_lock);
btv->curr.top_irq = 0;
btv->curr.top = NULL;
bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
v4l2_get_timestamp(&wakeup->vb.ts);
wakeup->vb.field_count = btv->field_count;
wakeup->vb.state = VIDEOBUF_DONE;
wake_up(&wakeup->vb.done);
spin_unlock(&btv->s_lock);
}
static inline int is_active(struct btcx_riscmem *risc, u32 rc)
{
if (rc < risc->dma)
return 0;
if (rc > risc->dma + risc->size)
return 0;
return 1;
}
static void
bttv_irq_switch_video(struct bttv *btv)
{
struct bttv_buffer_set new;
struct bttv_buffer_set old;
dma_addr_t rc;
spin_lock(&btv->s_lock);
/* new buffer set */
bttv_irq_next_video(btv, &new);
rc = btread(BT848_RISC_COUNT);
if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
(btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
btv->framedrop++;
if (debug_latency)
bttv_irq_debug_low_latency(btv, rc);
spin_unlock(&btv->s_lock);
return;
}
/* switch over */
old = btv->curr;
btv->curr = new;
btv->loop_irq &= ~1;
bttv_buffer_activate_video(btv, &new);
bttv_set_dma(btv, 0);
/* switch input */
if (UNSET != btv->new_input) {
video_mux(btv,btv->new_input);
btv->new_input = UNSET;
}
/* wake up finished buffers */
bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
spin_unlock(&btv->s_lock);
}
static void
bttv_irq_switch_vbi(struct bttv *btv)
{
struct bttv_buffer *new = NULL;
struct bttv_buffer *old;
u32 rc;
spin_lock(&btv->s_lock);
if (!list_empty(&btv->vcapture))
new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
old = btv->cvbi;
rc = btread(BT848_RISC_COUNT);
if (NULL != old && (is_active(&old->top, rc) ||
is_active(&old->bottom, rc))) {
btv->framedrop++;
if (debug_latency)
bttv_irq_debug_low_latency(btv, rc);
spin_unlock(&btv->s_lock);
return;
}
/* switch */
btv->cvbi = new;
btv->loop_irq &= ~4;
bttv_buffer_activate_vbi(btv, new);
bttv_set_dma(btv, 0);
bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
spin_unlock(&btv->s_lock);
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t bttv_irq(int irq, void *dev_id)
{
u32 stat,astat;
u32 dstat;
int count;
struct bttv *btv;
int handled = 0;
btv=(struct bttv *)dev_id;
count=0;
while (1) {
/* get/clear interrupt status bits */
stat=btread(BT848_INT_STAT);
astat=stat&btread(BT848_INT_MASK);
if (!astat)
break;
handled = 1;
btwrite(stat,BT848_INT_STAT);
/* get device status bits */
dstat=btread(BT848_DSTATUS);
if (irq_debug) {
pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
btv->c.nr, count, btv->field_count,
stat>>28, btread(BT848_RISC_COUNT));
bttv_print_irqbits(stat,astat);
if (stat & BT848_INT_HLOCK)
pr_cont(" HLOC => %s",
dstat & BT848_DSTATUS_HLOC
? "yes" : "no");
if (stat & BT848_INT_VPRES)
pr_cont(" PRES => %s",
dstat & BT848_DSTATUS_PRES
? "yes" : "no");
if (stat & BT848_INT_FMTCHG)
pr_cont(" NUML => %s",
dstat & BT848_DSTATUS_NUML
? "625" : "525");
pr_cont("\n");
}
if (astat&BT848_INT_VSYNC)
btv->field_count++;
if ((astat & BT848_INT_GPINT) && btv->remote) {
bttv_input_irq(btv);
}
if (astat & BT848_INT_I2CDONE) {
btv->i2c_done = stat;
wake_up(&btv->i2c_queue);
}
if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
bttv_irq_switch_vbi(btv);
if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
bttv_irq_wakeup_top(btv);
if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
bttv_irq_switch_video(btv);
if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
/* trigger automute */
audio_mux_gpio(btv, btv->audio_input, btv->mute);
if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
pr_info("%d: %s%s @ %08x,",
btv->c.nr,
(astat & BT848_INT_SCERR) ? "SCERR" : "",
(astat & BT848_INT_OCERR) ? "OCERR" : "",
btread(BT848_RISC_COUNT));
bttv_print_irqbits(stat,astat);
pr_cont("\n");
if (bttv_debug)
bttv_print_riscaddr(btv);
}
if (fdsr && astat & BT848_INT_FDSR) {
pr_info("%d: FDSR @ %08x\n",
btv->c.nr, btread(BT848_RISC_COUNT));
if (bttv_debug)
bttv_print_riscaddr(btv);
}
count++;
if (count > 4) {
if (count > 8 || !(astat & BT848_INT_GPINT)) {
btwrite(0, BT848_INT_MASK);
pr_err("%d: IRQ lockup, cleared int mask [",
btv->c.nr);
} else {
pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
btv->c.nr);
btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
BT848_INT_MASK);
}
bttv_print_irqbits(stat,astat);
pr_cont("]\n");
}
}
btv->irq_total++;
if (handled)
btv->irq_me++;
return IRQ_RETVAL(handled);
}
/* ----------------------------------------------------------------------- */
/* initialization */
static void vdev_init(struct bttv *btv,
struct video_device *vfd,
const struct video_device *template,
const char *type_name)
{
*vfd = *template;
vfd->v4l2_dev = &btv->c.v4l2_dev;
vfd->release = video_device_release_empty;
video_set_drvdata(vfd, btv);
snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
type_name, bttv_tvcards[btv->c.type].name);
if (btv->tuner_type == TUNER_ABSENT) {
v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
}
}
static void bttv_unregister_video(struct bttv *btv)
{
video_unregister_device(&btv->video_dev);
video_unregister_device(&btv->vbi_dev);
video_unregister_device(&btv->radio_dev);
}
/* register video4linux devices */
static int bttv_register_video(struct bttv *btv)
{
if (no_overlay > 0)
pr_notice("Overlay support disabled\n");
/* video */
vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
video_nr[btv->c.nr]) < 0)
goto err;
pr_info("%d: registered device %s\n",
btv->c.nr, video_device_node_name(&btv->video_dev));
if (device_create_file(&btv->video_dev.dev,
&dev_attr_card)<0) {
pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
goto err;
}
/* vbi */
vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
vbi_nr[btv->c.nr]) < 0)
goto err;
pr_info("%d: registered device %s\n",
btv->c.nr, video_device_node_name(&btv->vbi_dev));
if (!btv->has_radio)
return 0;
/* radio */
vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
radio_nr[btv->c.nr]) < 0)
goto err;
pr_info("%d: registered device %s\n",
btv->c.nr, video_device_node_name(&btv->radio_dev));
/* all done */
return 0;
err:
bttv_unregister_video(btv);
return -1;
}
/* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
/* response on cards with no firmware is not enabled by OF */
static void pci_set_command(struct pci_dev *dev)
{
#if defined(__powerpc__)
unsigned int cmd;
pci_read_config_dword(dev, PCI_COMMAND, &cmd);
cmd = (cmd | PCI_COMMAND_MEMORY );
pci_write_config_dword(dev, PCI_COMMAND, cmd);
#endif
}
static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
{
struct v4l2_frequency init_freq = {
.tuner = 0,
.type = V4L2_TUNER_ANALOG_TV,
.frequency = 980,
};
int result;
unsigned char lat;
struct bttv *btv;
struct v4l2_ctrl_handler *hdl;
if (bttv_num == BTTV_MAX)
return -ENOMEM;
pr_info("Bt8xx card found (%d)\n", bttv_num);
bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
if (btv == NULL) {
pr_err("out of memory\n");
return -ENOMEM;
}
btv->c.nr = bttv_num;
snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
"bttv%d", btv->c.nr);
/* initialize structs / fill in defaults */
mutex_init(&btv->lock);
spin_lock_init(&btv->s_lock);
spin_lock_init(&btv->gpio_lock);
init_waitqueue_head(&btv->i2c_queue);
INIT_LIST_HEAD(&btv->c.subs);
INIT_LIST_HEAD(&btv->capture);
INIT_LIST_HEAD(&btv->vcapture);
timer_setup(&btv->timeout, bttv_irq_timeout, 0);
btv->i2c_rc = -1;
btv->tuner_type = UNSET;
btv->new_input = UNSET;
btv->has_radio=radio[btv->c.nr];
/* pci stuff (init, get irq/mmio, ... */
btv->c.pci = dev;
btv->id = dev->device;
if (pci_enable_device(dev)) {
pr_warn("%d: Can't enable device\n", btv->c.nr);
return -EIO;
}
if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
pr_warn("%d: No suitable DMA available\n", btv->c.nr);
return -EIO;
}
if (!request_mem_region(pci_resource_start(dev,0),
pci_resource_len(dev,0),
btv->c.v4l2_dev.name)) {
pr_warn("%d: can't request iomem (0x%llx)\n",
btv->c.nr,
(unsigned long long)pci_resource_start(dev, 0));
return -EBUSY;
}
pci_set_master(dev);
pci_set_command(dev);
result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
if (result < 0) {
pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
goto fail0;
}
hdl = &btv->ctrl_handler;
v4l2_ctrl_handler_init(hdl, 20);
btv->c.v4l2_dev.ctrl_handler = hdl;
v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
btv->revision = dev->revision;
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
bttv_num, btv->id, btv->revision, pci_name(dev),
btv->c.pci->irq, lat,
(unsigned long long)pci_resource_start(dev, 0));
schedule();
btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
if (NULL == btv->bt848_mmio) {
pr_err("%d: ioremap() failed\n", btv->c.nr);
result = -EIO;
goto fail1;
}
/* identify card */
bttv_idcard(btv);
/* disable irqs, register irq handler */
btwrite(0, BT848_INT_MASK);
result = request_irq(btv->c.pci->irq, bttv_irq,
IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
if (result < 0) {
pr_err("%d: can't get IRQ %d\n",
bttv_num, btv->c.pci->irq);
goto fail1;
}
if (0 != bttv_handle_chipset(btv)) {
result = -EIO;
goto fail2;
}
/* init options from insmod args */
btv->opt_combfilter = combfilter;
bttv_ctrl_combfilter.def = combfilter;
bttv_ctrl_lumafilter.def = lumafilter;
btv->opt_automute = automute;
bttv_ctrl_automute.def = automute;
bttv_ctrl_agc_crush.def = agc_crush;
btv->opt_vcr_hack = vcr_hack;
bttv_ctrl_vcr_hack.def = vcr_hack;
bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
btv->opt_uv_ratio = uv_ratio;
bttv_ctrl_uv_ratio.def = uv_ratio;
bttv_ctrl_full_luma.def = full_luma_range;
bttv_ctrl_coring.def = coring;
/* fill struct bttv with some useful defaults */
btv->init.btv = btv;
btv->init.ov.w.width = 320;
btv->init.ov.w.height = 240;
btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
btv->init.width = 320;
btv->init.height = 240;
btv->init.ov.w.width = 320;
btv->init.ov.w.height = 240;
btv->init.ov.field = V4L2_FIELD_INTERLACED;
btv->input = 0;
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
if (btv->volume_gpio)
v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
/* initialize hardware */
if (bttv_gpio)
bttv_gpio_tracking(btv,"pre-init");
bttv_risc_init_main(btv);
init_bt848(btv);
/* gpio */
btwrite(0x00, BT848_GPIO_REG_INP);
btwrite(0x00, BT848_GPIO_OUT_EN);
if (bttv_verbose)
bttv_gpio_tracking(btv,"init");
/* needs to be done before i2c is registered */
bttv_init_card1(btv);
/* register i2c + gpio */
init_bttv_i2c(btv);
/* some card-specific stuff (needs working i2c) */
bttv_init_card2(btv);
bttv_init_tuner(btv);
if (btv->tuner_type != TUNER_ABSENT) {
bttv_set_frequency(btv, &init_freq);
btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
}
btv->std = V4L2_STD_PAL;
init_irqreg(btv);
if (!bttv_tvcards[btv->c.type].no_video)
v4l2_ctrl_handler_setup(hdl);
if (hdl->error) {
result = hdl->error;
goto fail2;
}
/* mute device */
audio_mute(btv, 1);
/* register video4linux + input */
if (!bttv_tvcards[btv->c.type].no_video) {
v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
v4l2_ctrl_radio_filter);
if (btv->radio_ctrl_handler.error) {
result = btv->radio_ctrl_handler.error;
goto fail2;
}
set_input(btv, 0, btv->tvnorm);
2007-01-19 03:17:39 +08:00
bttv_crop_reset(&btv->crop[0], btv->tvnorm);
btv->crop[1] = btv->crop[0]; /* current = default */
disclaim_vbi_lines(btv);
disclaim_video_lines(btv);
bttv_register_video(btv);
}
/* add subdevices and autoload dvb-bt8xx if needed */
if (bttv_tvcards[btv->c.type].has_dvb) {
bttv_sub_add_device(&btv->c, "dvb");
request_modules(btv);
}
if (!disable_ir) {
init_bttv_i2c_ir(btv);
bttv_input_init(btv);
}
/* everything is fine */
bttv_num++;
return 0;
fail2:
free_irq(btv->c.pci->irq,btv);
fail1:
v4l2_ctrl_handler_free(&btv->ctrl_handler);
v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
v4l2_device_unregister(&btv->c.v4l2_dev);
fail0:
if (btv->bt848_mmio)
iounmap(btv->bt848_mmio);
release_mem_region(pci_resource_start(btv->c.pci,0),
pci_resource_len(btv->c.pci,0));
pci_disable_device(btv->c.pci);
return result;
}
static void bttv_remove(struct pci_dev *pci_dev)
{
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct bttv *btv = to_bttv(v4l2_dev);
if (bttv_verbose)
pr_info("%d: unloading\n", btv->c.nr);
if (bttv_tvcards[btv->c.type].has_dvb)
flush_request_modules(btv);
/* shutdown everything (DMA+IRQs) */
btand(~15, BT848_GPIO_DMA_CTL);
btwrite(0, BT848_INT_MASK);
btwrite(~0x0, BT848_INT_STAT);
btwrite(0x0, BT848_GPIO_OUT_EN);
if (bttv_gpio)
bttv_gpio_tracking(btv,"cleanup");
/* tell gpio modules we are leaving ... */
btv->shutdown=1;
bttv_input_fini(btv);
bttv_sub_del_devices(&btv->c);
/* unregister i2c_bus + input */
fini_bttv_i2c(btv);
/* unregister video4linux */
bttv_unregister_video(btv);
/* free allocated memory */
v4l2_ctrl_handler_free(&btv->ctrl_handler);
v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
btcx_riscmem_free(btv->c.pci,&btv->main);
/* free resources */
free_irq(btv->c.pci->irq,btv);
iounmap(btv->bt848_mmio);
release_mem_region(pci_resource_start(btv->c.pci,0),
pci_resource_len(btv->c.pci,0));
pci_disable_device(btv->c.pci);
v4l2_device_unregister(&btv->c.v4l2_dev);
bttvs[btv->c.nr] = NULL;
kfree(btv);
return;
}
#ifdef CONFIG_PM
static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
{
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct bttv *btv = to_bttv(v4l2_dev);
struct bttv_buffer_set idle;
unsigned long flags;
dprintk("%d: suspend %d\n", btv->c.nr, state.event);
/* stop dma + irqs */
spin_lock_irqsave(&btv->s_lock,flags);
memset(&idle, 0, sizeof(idle));
btv->state.video = btv->curr;
btv->state.vbi = btv->cvbi;
btv->state.loop_irq = btv->loop_irq;
btv->curr = idle;
btv->loop_irq = 0;
bttv_buffer_activate_video(btv, &idle);
bttv_buffer_activate_vbi(btv, NULL);
bttv_set_dma(btv, 0);
btwrite(0, BT848_INT_MASK);
spin_unlock_irqrestore(&btv->s_lock,flags);
/* save bt878 state */
btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
btv->state.gpio_data = gpio_read();
/* save pci state */
pci_save_state(pci_dev);
if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
pci_disable_device(pci_dev);
btv->state.disabled = 1;
}
return 0;
}
static int bttv_resume(struct pci_dev *pci_dev)
{
struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
struct bttv *btv = to_bttv(v4l2_dev);
unsigned long flags;
int err;
dprintk("%d: resume\n", btv->c.nr);
/* restore pci state */
if (btv->state.disabled) {
err=pci_enable_device(pci_dev);
if (err) {
pr_warn("%d: Can't enable device\n", btv->c.nr);
return err;
}
btv->state.disabled = 0;
}
err=pci_set_power_state(pci_dev, PCI_D0);
if (err) {
pci_disable_device(pci_dev);
pr_warn("%d: Can't enable device\n", btv->c.nr);
btv->state.disabled = 1;
return err;
}
pci_restore_state(pci_dev);
/* restore bt878 state */
bttv_reinit_bt848(btv);
gpio_inout(0xffffff, btv->state.gpio_enable);
gpio_write(btv->state.gpio_data);
/* restart dma */
spin_lock_irqsave(&btv->s_lock,flags);
btv->curr = btv->state.video;
btv->cvbi = btv->state.vbi;
btv->loop_irq = btv->state.loop_irq;
bttv_buffer_activate_video(btv, &btv->curr);
bttv_buffer_activate_vbi(btv, btv->cvbi);
bttv_set_dma(btv, 0);
spin_unlock_irqrestore(&btv->s_lock,flags);
return 0;
}
#endif
static const struct pci_device_id bttv_pci_tbl[] = {
{PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
{PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
{PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
{PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
{PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
{0,}
};
MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
static struct pci_driver bttv_pci_driver = {
.name = "bttv",
.id_table = bttv_pci_tbl,
.probe = bttv_probe,
.remove = bttv_remove,
#ifdef CONFIG_PM
.suspend = bttv_suspend,
.resume = bttv_resume,
#endif
};
static int __init bttv_init_module(void)
{
int ret;
bttv_num = 0;
pr_info("driver version %s loaded\n", BTTV_VERSION);
if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
gbuffers = 2;
if (gbufsize > BTTV_MAX_FBUF)
gbufsize = BTTV_MAX_FBUF;
gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
if (bttv_verbose)
pr_info("using %d buffers with %dk (%d pages) each for capture\n",
gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
bttv_check_chipset();
ret = bus_register(&bttv_sub_bus_type);
if (ret < 0) {
pr_warn("bus_register error: %d\n", ret);
return ret;
}
ret = pci_register_driver(&bttv_pci_driver);
if (ret < 0)
bus_unregister(&bttv_sub_bus_type);
return ret;
}
static void __exit bttv_cleanup_module(void)
{
pci_unregister_driver(&bttv_pci_driver);
bus_unregister(&bttv_sub_bus_type);
}
module_init(bttv_init_module);
module_exit(bttv_cleanup_module);