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![Alan Cox](/assets/img/avatar_default.png)
We should be doing this on all devices doing PCI<->PCI DMA. We only set the _FAIL ones when the DMA will fail or may cause crashes. This relies on the PCIAGP_FAIL patch I sent to Andrew already Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
4707 lines
115 KiB
C
4707 lines
115 KiB
C
/*
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* Zoran zr36057/zr36067 PCI controller driver, for the
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* Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
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* Media Labs LML33/LML33R10.
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*
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* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
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*
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* Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
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*
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* Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
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*
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* Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
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*
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* Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* Based on
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*
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* Miro DC10 driver
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* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
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*
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* Iomega Buz driver version 1.0
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* Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
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*
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* buz.0.0.3
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* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
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*
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* bttv - Bt848 frame grabber driver
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* Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
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* & Marcus Metzler (mocm@thp.uni-koeln.de)
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/version.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <linux/vmalloc.h>
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#include <linux/wait.h>
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#include <linux/byteorder/generic.h>
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#include <linux/interrupt.h>
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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#include <linux/spinlock.h>
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#define MAP_NR(x) virt_to_page(x)
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#define ZORAN_HARDWARE VID_HARDWARE_ZR36067
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#define ZORAN_VID_TYPE ( \
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VID_TYPE_CAPTURE | \
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VID_TYPE_OVERLAY | \
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VID_TYPE_CLIPPING | \
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VID_TYPE_FRAMERAM | \
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VID_TYPE_SCALES | \
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VID_TYPE_MJPEG_DECODER | \
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VID_TYPE_MJPEG_ENCODER \
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)
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#include <linux/videodev.h>
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#include <media/v4l2-common.h>
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#include "videocodec.h"
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <linux/proc_fs.h>
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#include <linux/video_decoder.h>
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#include <linux/video_encoder.h>
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#include <linux/mutex.h>
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#include "zoran.h"
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#include "zoran_device.h"
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#include "zoran_card.h"
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#ifdef CONFIG_VIDEO_V4L2
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/* we declare some card type definitions here, they mean
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* the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
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#define ZORAN_V4L2_VID_FLAGS ( \
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V4L2_CAP_STREAMING |\
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V4L2_CAP_VIDEO_CAPTURE |\
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V4L2_CAP_VIDEO_OUTPUT |\
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V4L2_CAP_VIDEO_OVERLAY \
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)
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#endif
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#include <asm/byteorder.h>
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const struct zoran_format zoran_formats[] = {
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{
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.name = "15-bit RGB",
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.palette = VIDEO_PALETTE_RGB555,
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#ifdef CONFIG_VIDEO_V4L2
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#ifdef __LITTLE_ENDIAN
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.fourcc = V4L2_PIX_FMT_RGB555,
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#else
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.fourcc = V4L2_PIX_FMT_RGB555X,
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#endif
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.colorspace = V4L2_COLORSPACE_SRGB,
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#endif
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.depth = 15,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_OVERLAY,
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}, {
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.name = "16-bit RGB",
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.palette = VIDEO_PALETTE_RGB565,
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#ifdef CONFIG_VIDEO_V4L2
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#ifdef __LITTLE_ENDIAN
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.fourcc = V4L2_PIX_FMT_RGB565,
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#else
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.fourcc = V4L2_PIX_FMT_RGB565X,
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#endif
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.colorspace = V4L2_COLORSPACE_SRGB,
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#endif
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.depth = 16,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_OVERLAY,
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}, {
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.name = "24-bit RGB",
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.palette = VIDEO_PALETTE_RGB24,
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#ifdef CONFIG_VIDEO_V4L2
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#ifdef __LITTLE_ENDIAN
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.fourcc = V4L2_PIX_FMT_BGR24,
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#else
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.fourcc = V4L2_PIX_FMT_RGB24,
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#endif
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.colorspace = V4L2_COLORSPACE_SRGB,
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#endif
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.depth = 24,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_OVERLAY,
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}, {
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.name = "32-bit RGB",
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.palette = VIDEO_PALETTE_RGB32,
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#ifdef CONFIG_VIDEO_V4L2
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#ifdef __LITTLE_ENDIAN
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.fourcc = V4L2_PIX_FMT_BGR32,
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#else
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.fourcc = V4L2_PIX_FMT_RGB32,
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#endif
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.colorspace = V4L2_COLORSPACE_SRGB,
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#endif
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.depth = 32,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_OVERLAY,
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}, {
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.name = "4:2:2, packed, YUYV",
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.palette = VIDEO_PALETTE_YUV422,
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#ifdef CONFIG_VIDEO_V4L2
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.fourcc = V4L2_PIX_FMT_YUYV,
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.colorspace = V4L2_COLORSPACE_SMPTE170M,
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#endif
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.depth = 16,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_OVERLAY,
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}, {
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.name = "Hardware-encoded Motion-JPEG",
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.palette = -1,
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#ifdef CONFIG_VIDEO_V4L2
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.fourcc = V4L2_PIX_FMT_MJPEG,
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.colorspace = V4L2_COLORSPACE_SMPTE170M,
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#endif
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.depth = 0,
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.flags = ZORAN_FORMAT_CAPTURE |
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ZORAN_FORMAT_PLAYBACK |
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ZORAN_FORMAT_COMPRESSED,
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}
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};
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static const int zoran_num_formats =
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(sizeof(zoran_formats) / sizeof(struct zoran_format));
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// RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
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#if !defined(CONFIG_BIGPHYS_AREA)
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//#undef CONFIG_BIGPHYS_AREA
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#define BUZ_USE_HIMEM
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#endif
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#if defined(CONFIG_BIGPHYS_AREA)
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# include <linux/bigphysarea.h>
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#endif
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extern int *zr_debug;
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#define dprintk(num, format, args...) \
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do { \
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if (*zr_debug >= num) \
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printk(format, ##args); \
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} while (0)
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extern int v4l_nbufs;
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extern int v4l_bufsize;
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extern int jpg_nbufs;
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extern int jpg_bufsize;
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extern int pass_through;
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static int lock_norm = 0; /* 1=Don't change TV standard (norm) */
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module_param(lock_norm, int, 0);
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MODULE_PARM_DESC(lock_norm, "Users can't change norm");
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#ifdef CONFIG_VIDEO_V4L2
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/* small helper function for calculating buffersizes for v4l2
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* we calculate the nearest higher power-of-two, which
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* will be the recommended buffersize */
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static __u32
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zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
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{
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__u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
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__u32 num = (1024 * 512) / (div);
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__u32 result = 2;
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num--;
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while (num) {
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num >>= 1;
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result <<= 1;
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}
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if (result > jpg_bufsize)
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return jpg_bufsize;
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if (result < 8192)
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return 8192;
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return result;
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}
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#endif
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/* forward references */
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static void v4l_fbuffer_free(struct file *file);
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static void jpg_fbuffer_free(struct file *file);
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/*
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* Allocate the V4L grab buffers
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*
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* These have to be pysically contiguous.
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* If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
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* else we try to allocate them with bigphysarea_alloc_pages
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* if the bigphysarea patch is present in the kernel,
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* else we try to use high memory (if the user has bootet
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* Linux with the necessary memory left over).
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*/
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#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
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static unsigned long
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get_high_mem (unsigned long size)
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{
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/*
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* Check if there is usable memory at the end of Linux memory
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* of at least size. Return the physical address of this memory,
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* return 0 on failure.
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*
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* The idea is from Alexandro Rubini's book "Linux device drivers".
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* The driver from him which is downloadable from O'Reilly's
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* web site misses the "virt_to_phys(high_memory)" part
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* (and therefore doesn't work at all - at least with 2.2.x kernels).
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*
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* It should be unnecessary to mention that THIS IS DANGEROUS,
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* if more than one driver at a time has the idea to use this memory!!!!
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*/
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volatile unsigned char __iomem *mem;
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unsigned char c;
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unsigned long hi_mem_ph;
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unsigned long i;
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/* Map the high memory to user space */
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hi_mem_ph = virt_to_phys(high_memory);
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mem = ioremap(hi_mem_ph, size);
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if (!mem) {
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dprintk(1,
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KERN_ERR "%s: get_high_mem() - ioremap failed\n",
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ZORAN_NAME);
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return 0;
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}
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for (i = 0; i < size; i++) {
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/* Check if it is memory */
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c = i & 0xff;
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writeb(c, mem + i);
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if (readb(mem + i) != c)
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break;
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c = 255 - c;
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writeb(c, mem + i);
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if (readb(mem + i) != c)
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break;
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writeb(0, mem + i); /* zero out memory */
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/* give the kernel air to breath */
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if ((i & 0x3ffff) == 0x3ffff)
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schedule();
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}
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iounmap(mem);
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if (i != size) {
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dprintk(1,
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KERN_ERR
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"%s: get_high_mem() - requested %lu, avail %lu\n",
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ZORAN_NAME, size, i);
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return 0;
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}
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return hi_mem_ph;
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}
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#endif
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static int
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v4l_fbuffer_alloc (struct file *file)
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{
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struct zoran_fh *fh = file->private_data;
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struct zoran *zr = fh->zr;
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int i, off;
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unsigned char *mem;
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#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
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unsigned long pmem = 0;
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#endif
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/* we might have old buffers lying around... */
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if (fh->v4l_buffers.ready_to_be_freed) {
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v4l_fbuffer_free(file);
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}
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for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
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if (fh->v4l_buffers.buffer[i].fbuffer)
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dprintk(2,
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KERN_WARNING
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"%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
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ZR_DEVNAME(zr), i);
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//udelay(20);
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if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
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/* Use kmalloc */
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mem =
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(unsigned char *) kmalloc(fh->v4l_buffers.
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buffer_size,
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GFP_KERNEL);
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if (mem == 0) {
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dprintk(1,
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KERN_ERR
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"%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
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ZR_DEVNAME(zr), i);
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v4l_fbuffer_free(file);
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return -ENOBUFS;
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}
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fh->v4l_buffers.buffer[i].fbuffer = mem;
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fh->v4l_buffers.buffer[i].fbuffer_phys =
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virt_to_phys(mem);
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fh->v4l_buffers.buffer[i].fbuffer_bus =
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virt_to_bus(mem);
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for (off = 0; off < fh->v4l_buffers.buffer_size;
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off += PAGE_SIZE)
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SetPageReserved(MAP_NR(mem + off));
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dprintk(4,
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KERN_INFO
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"%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
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ZR_DEVNAME(zr), i, (unsigned long) mem,
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virt_to_bus(mem));
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} else {
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#if defined(CONFIG_BIGPHYS_AREA)
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/* Use bigphysarea_alloc_pages */
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int n =
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(fh->v4l_buffers.buffer_size + PAGE_SIZE -
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1) / PAGE_SIZE;
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mem =
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(unsigned char *) bigphysarea_alloc_pages(n, 0,
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GFP_KERNEL);
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if (mem == 0) {
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dprintk(1,
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KERN_ERR
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"%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
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ZR_DEVNAME(zr), i);
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v4l_fbuffer_free(file);
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return -ENOBUFS;
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}
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fh->v4l_buffers.buffer[i].fbuffer = mem;
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fh->v4l_buffers.buffer[i].fbuffer_phys =
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virt_to_phys(mem);
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fh->v4l_buffers.buffer[i].fbuffer_bus =
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virt_to_bus(mem);
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dprintk(4,
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KERN_INFO
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"%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
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ZR_DEVNAME(zr), i, (unsigned) mem,
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(unsigned) virt_to_bus(mem));
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/* Zero out the allocated memory */
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memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
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fh->v4l_buffers.buffer_size);
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#elif defined(BUZ_USE_HIMEM)
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/* Use high memory which has been left at boot time */
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/* Ok., Ok. this is an evil hack - we make
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* the assumption that physical addresses are
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* the same as bus addresses (true at least
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* for Intel processors). The whole method of
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* obtaining and using this memory is not very
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* nice - but I hope it saves some poor users
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* from kernel hacking, which might have even
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* more evil results */
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if (i == 0) {
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int size =
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fh->v4l_buffers.num_buffers *
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fh->v4l_buffers.buffer_size;
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pmem = get_high_mem(size);
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if (pmem == 0) {
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dprintk(1,
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KERN_ERR
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"%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
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ZR_DEVNAME(zr), size >> 10);
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return -ENOBUFS;
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}
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fh->v4l_buffers.buffer[0].fbuffer = NULL;
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fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
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fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
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dprintk(4,
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KERN_INFO
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"%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
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ZR_DEVNAME(zr), size >> 10);
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} else {
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fh->v4l_buffers.buffer[i].fbuffer = NULL;
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fh->v4l_buffers.buffer[i].fbuffer_phys =
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pmem + i * fh->v4l_buffers.buffer_size;
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fh->v4l_buffers.buffer[i].fbuffer_bus =
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pmem + i * fh->v4l_buffers.buffer_size;
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}
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#else
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/* No bigphysarea present, usage of high memory disabled,
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* but user wants buffers of more than MAX_KMALLOC_MEM */
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dprintk(1,
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KERN_ERR
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"%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
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ZR_DEVNAME(zr));
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dprintk(1,
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KERN_ERR
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"%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
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ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
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fh->v4l_buffers.buffer_size >> 10);
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return -ENOBUFS;
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#endif
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}
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}
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|
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fh->v4l_buffers.allocated = 1;
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|
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return 0;
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}
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|
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/* free the V4L grab buffers */
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static void
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v4l_fbuffer_free (struct file *file)
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{
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struct zoran_fh *fh = file->private_data;
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struct zoran *zr = fh->zr;
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int i, off;
|
|
unsigned char *mem;
|
|
|
|
dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
|
|
|
|
for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
|
|
if (!fh->v4l_buffers.buffer[i].fbuffer)
|
|
continue;
|
|
|
|
if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
|
|
mem = fh->v4l_buffers.buffer[i].fbuffer;
|
|
for (off = 0; off < fh->v4l_buffers.buffer_size;
|
|
off += PAGE_SIZE)
|
|
ClearPageReserved(MAP_NR(mem + off));
|
|
kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
|
|
}
|
|
#if defined(CONFIG_BIGPHYS_AREA)
|
|
else
|
|
bigphysarea_free_pages((void *) fh->v4l_buffers.
|
|
buffer[i].fbuffer);
|
|
#endif
|
|
fh->v4l_buffers.buffer[i].fbuffer = NULL;
|
|
}
|
|
|
|
fh->v4l_buffers.allocated = 0;
|
|
fh->v4l_buffers.ready_to_be_freed = 0;
|
|
}
|
|
|
|
/*
|
|
* Allocate the MJPEG grab buffers.
|
|
*
|
|
* If the requested buffer size is smaller than MAX_KMALLOC_MEM,
|
|
* kmalloc is used to request a physically contiguous area,
|
|
* else we allocate the memory in framgents with get_zeroed_page.
|
|
*
|
|
* If a Natoma chipset is present and this is a revision 1 zr36057,
|
|
* each MJPEG buffer needs to be physically contiguous.
|
|
* (RJ: This statement is from Dave Perks' original driver,
|
|
* I could never check it because I have a zr36067)
|
|
* The driver cares about this because it reduces the buffer
|
|
* size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
|
|
*
|
|
* RJ: The contents grab buffers needs never be accessed in the driver.
|
|
* Therefore there is no need to allocate them with vmalloc in order
|
|
* to get a contiguous virtual memory space.
|
|
* I don't understand why many other drivers first allocate them with
|
|
* vmalloc (which uses internally also get_zeroed_page, but delivers you
|
|
* virtual addresses) and then again have to make a lot of efforts
|
|
* to get the physical address.
|
|
*
|
|
* Ben Capper:
|
|
* On big-endian architectures (such as ppc) some extra steps
|
|
* are needed. When reading and writing to the stat_com array
|
|
* and fragment buffers, the device expects to see little-
|
|
* endian values. The use of cpu_to_le32() and le32_to_cpu()
|
|
* in this function (and one or two others in zoran_device.c)
|
|
* ensure that these values are always stored in little-endian
|
|
* form, regardless of architecture. The zr36057 does Very Bad
|
|
* Things on big endian architectures if the stat_com array
|
|
* and fragment buffers are not little-endian.
|
|
*/
|
|
|
|
static int
|
|
jpg_fbuffer_alloc (struct file *file)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int i, j, off;
|
|
unsigned long mem;
|
|
|
|
/* we might have old buffers lying around */
|
|
if (fh->jpg_buffers.ready_to_be_freed) {
|
|
jpg_fbuffer_free(file);
|
|
}
|
|
|
|
for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
|
|
if (fh->jpg_buffers.buffer[i].frag_tab)
|
|
dprintk(2,
|
|
KERN_WARNING
|
|
"%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
|
|
ZR_DEVNAME(zr), i);
|
|
|
|
/* Allocate fragment table for this buffer */
|
|
|
|
mem = get_zeroed_page(GFP_KERNEL);
|
|
if (mem == 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
|
|
ZR_DEVNAME(zr), i);
|
|
jpg_fbuffer_free(file);
|
|
return -ENOBUFS;
|
|
}
|
|
memset((void *) mem, 0, PAGE_SIZE);
|
|
fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
|
|
fh->jpg_buffers.buffer[i].frag_tab_bus =
|
|
virt_to_bus((void *) mem);
|
|
|
|
//if (alloc_contig) {
|
|
if (fh->jpg_buffers.need_contiguous) {
|
|
mem =
|
|
(unsigned long) kmalloc(fh->jpg_buffers.
|
|
buffer_size,
|
|
GFP_KERNEL);
|
|
if (mem == 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
|
|
ZR_DEVNAME(zr), i);
|
|
jpg_fbuffer_free(file);
|
|
return -ENOBUFS;
|
|
}
|
|
fh->jpg_buffers.buffer[i].frag_tab[0] =
|
|
cpu_to_le32(virt_to_bus((void *) mem));
|
|
fh->jpg_buffers.buffer[i].frag_tab[1] =
|
|
cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
|
|
for (off = 0; off < fh->jpg_buffers.buffer_size;
|
|
off += PAGE_SIZE)
|
|
SetPageReserved(MAP_NR(mem + off));
|
|
} else {
|
|
/* jpg_bufsize is allreay page aligned */
|
|
for (j = 0;
|
|
j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
|
|
j++) {
|
|
mem = get_zeroed_page(GFP_KERNEL);
|
|
if (mem == 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
|
|
ZR_DEVNAME(zr), i);
|
|
jpg_fbuffer_free(file);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
|
|
cpu_to_le32(virt_to_bus((void *) mem));
|
|
fh->jpg_buffers.buffer[i].frag_tab[2 * j +
|
|
1] =
|
|
cpu_to_le32((PAGE_SIZE / 4) << 1);
|
|
SetPageReserved(MAP_NR(mem));
|
|
}
|
|
|
|
fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
|
|
}
|
|
}
|
|
|
|
dprintk(4,
|
|
KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
|
|
ZR_DEVNAME(zr),
|
|
(fh->jpg_buffers.num_buffers *
|
|
fh->jpg_buffers.buffer_size) >> 10);
|
|
|
|
fh->jpg_buffers.allocated = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* free the MJPEG grab buffers */
|
|
static void
|
|
jpg_fbuffer_free (struct file *file)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int i, j, off;
|
|
unsigned char *mem;
|
|
|
|
dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
|
|
|
|
for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
|
|
if (!fh->jpg_buffers.buffer[i].frag_tab)
|
|
continue;
|
|
|
|
//if (alloc_contig) {
|
|
if (fh->jpg_buffers.need_contiguous) {
|
|
if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
|
|
mem = (unsigned char *) bus_to_virt(le32_to_cpu(
|
|
fh->jpg_buffers.buffer[i].frag_tab[0]));
|
|
for (off = 0;
|
|
off < fh->jpg_buffers.buffer_size;
|
|
off += PAGE_SIZE)
|
|
ClearPageReserved(MAP_NR
|
|
(mem + off));
|
|
kfree(mem);
|
|
fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
|
|
fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
|
|
}
|
|
} else {
|
|
for (j = 0;
|
|
j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
|
|
j++) {
|
|
if (!fh->jpg_buffers.buffer[i].
|
|
frag_tab[2 * j])
|
|
break;
|
|
ClearPageReserved(MAP_NR
|
|
(bus_to_virt
|
|
(le32_to_cpu
|
|
(fh->jpg_buffers.
|
|
buffer[i].frag_tab[2 *
|
|
j]))));
|
|
free_page((unsigned long)
|
|
bus_to_virt
|
|
(le32_to_cpu
|
|
(fh->jpg_buffers.
|
|
buffer[i].
|
|
frag_tab[2 * j])));
|
|
fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
|
|
0;
|
|
fh->jpg_buffers.buffer[i].frag_tab[2 * j +
|
|
1] = 0;
|
|
}
|
|
}
|
|
|
|
free_page((unsigned long) fh->jpg_buffers.buffer[i].
|
|
frag_tab);
|
|
fh->jpg_buffers.buffer[i].frag_tab = NULL;
|
|
}
|
|
|
|
fh->jpg_buffers.allocated = 0;
|
|
fh->jpg_buffers.ready_to_be_freed = 0;
|
|
}
|
|
|
|
/*
|
|
* V4L Buffer grabbing
|
|
*/
|
|
|
|
static int
|
|
zoran_v4l_set_format (struct file *file,
|
|
int width,
|
|
int height,
|
|
const struct zoran_format *format)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int bpp;
|
|
|
|
/* Check size and format of the grab wanted */
|
|
|
|
if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
|
|
height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_set_format() - wrong frame size (%dx%d)\n",
|
|
ZR_DEVNAME(zr), width, height);
|
|
return -EINVAL;
|
|
}
|
|
|
|
bpp = (format->depth + 7) / 8;
|
|
|
|
/* Check against available buffer size */
|
|
if (height * width * bpp > fh->v4l_buffers.buffer_size) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
|
|
ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* The video front end needs 4-byte alinged line sizes */
|
|
|
|
if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_set_format() - wrong frame alingment\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
fh->v4l_settings.width = width;
|
|
fh->v4l_settings.height = height;
|
|
fh->v4l_settings.format = format;
|
|
fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
zoran_v4l_queue_frame (struct file *file,
|
|
int num)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
unsigned long flags;
|
|
int res = 0;
|
|
|
|
if (!fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_queue_frame() - buffers not yet allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -ENOMEM;
|
|
}
|
|
|
|
/* No grabbing outside the buffer range! */
|
|
if (num >= fh->v4l_buffers.num_buffers || num < 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_queue_frame() - buffer %d is out of range\n",
|
|
ZR_DEVNAME(zr), num);
|
|
res = -EINVAL;
|
|
}
|
|
|
|
spin_lock_irqsave(&zr->spinlock, flags);
|
|
|
|
if (fh->v4l_buffers.active == ZORAN_FREE) {
|
|
if (zr->v4l_buffers.active == ZORAN_FREE) {
|
|
zr->v4l_buffers = fh->v4l_buffers;
|
|
fh->v4l_buffers.active = ZORAN_ACTIVE;
|
|
} else {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_queue_frame() - another session is already capturing\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
}
|
|
}
|
|
|
|
/* make sure a grab isn't going on currently with this buffer */
|
|
if (!res) {
|
|
switch (zr->v4l_buffers.buffer[num].state) {
|
|
default:
|
|
case BUZ_STATE_PEND:
|
|
if (zr->v4l_buffers.active == ZORAN_FREE) {
|
|
fh->v4l_buffers.active = ZORAN_FREE;
|
|
zr->v4l_buffers.allocated = 0;
|
|
}
|
|
res = -EBUSY; /* what are you doing? */
|
|
break;
|
|
case BUZ_STATE_DONE:
|
|
dprintk(2,
|
|
KERN_WARNING
|
|
"%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
|
|
ZR_DEVNAME(zr), num);
|
|
case BUZ_STATE_USER:
|
|
/* since there is at least one unused buffer there's room for at least
|
|
* one more pend[] entry */
|
|
zr->v4l_pend[zr->v4l_pend_head++ &
|
|
V4L_MASK_FRAME] = num;
|
|
zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
|
|
zr->v4l_buffers.buffer[num].bs.length =
|
|
fh->v4l_settings.bytesperline *
|
|
zr->v4l_settings.height;
|
|
fh->v4l_buffers.buffer[num] =
|
|
zr->v4l_buffers.buffer[num];
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(&zr->spinlock, flags);
|
|
|
|
if (!res && zr->v4l_buffers.active == ZORAN_FREE)
|
|
zr->v4l_buffers.active = fh->v4l_buffers.active;
|
|
|
|
return res;
|
|
}
|
|
|
|
static int
|
|
v4l_grab (struct file *file,
|
|
struct video_mmap *mp)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int res = 0, i;
|
|
|
|
for (i = 0; i < zoran_num_formats; i++) {
|
|
if (zoran_formats[i].palette == mp->format &&
|
|
zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
|
|
!(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
|
|
break;
|
|
}
|
|
if (i == zoran_num_formats || zoran_formats[i].depth == 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_grab() - wrong bytes-per-pixel format\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* To minimize the time spent in the IRQ routine, we avoid setting up
|
|
* the video front end there.
|
|
* If this grab has different parameters from a running streaming capture
|
|
* we stop the streaming capture and start it over again.
|
|
*/
|
|
if (zr->v4l_memgrab_active &&
|
|
(zr->v4l_settings.width != mp->width ||
|
|
zr->v4l_settings.height != mp->height ||
|
|
zr->v4l_settings.format->palette != mp->format)) {
|
|
res = wait_grab_pending(zr);
|
|
if (res)
|
|
return res;
|
|
}
|
|
if ((res = zoran_v4l_set_format(file,
|
|
mp->width,
|
|
mp->height,
|
|
&zoran_formats[i])))
|
|
return res;
|
|
zr->v4l_settings = fh->v4l_settings;
|
|
|
|
/* queue the frame in the pending queue */
|
|
if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
|
|
fh->v4l_buffers.active = ZORAN_FREE;
|
|
return res;
|
|
}
|
|
|
|
/* put the 36057 into frame grabbing mode */
|
|
if (!res && !zr->v4l_memgrab_active)
|
|
zr36057_set_memgrab(zr, 1);
|
|
|
|
//dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
|
|
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* Sync on a V4L buffer
|
|
*/
|
|
|
|
static int
|
|
v4l_sync (struct file *file,
|
|
int frame)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
unsigned long flags;
|
|
|
|
if (fh->v4l_buffers.active == ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_sync() - no grab active for this session\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* check passed-in frame number */
|
|
if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
|
|
dprintk(1,
|
|
KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
|
|
ZR_DEVNAME(zr), frame);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Check if is buffer was queued at all */
|
|
if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EPROTO;
|
|
}
|
|
|
|
/* wait on this buffer to get ready */
|
|
if (!wait_event_interruptible_timeout(zr->v4l_capq,
|
|
(zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
|
|
10*HZ))
|
|
return -ETIME;
|
|
if (signal_pending(current))
|
|
return -ERESTARTSYS;
|
|
|
|
/* buffer should now be in BUZ_STATE_DONE */
|
|
if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
|
|
dprintk(2,
|
|
KERN_ERR "%s: v4l_sync() - internal state error\n",
|
|
ZR_DEVNAME(zr));
|
|
|
|
zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
|
|
fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
|
|
|
|
spin_lock_irqsave(&zr->spinlock, flags);
|
|
|
|
/* Check if streaming capture has finished */
|
|
if (zr->v4l_pend_tail == zr->v4l_pend_head) {
|
|
zr36057_set_memgrab(zr, 0);
|
|
if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
|
|
fh->v4l_buffers.active = zr->v4l_buffers.active =
|
|
ZORAN_FREE;
|
|
zr->v4l_buffers.allocated = 0;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(&zr->spinlock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Queue a MJPEG buffer for capture/playback
|
|
*/
|
|
|
|
static int
|
|
zoran_jpg_queue_frame (struct file *file,
|
|
int num,
|
|
enum zoran_codec_mode mode)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
unsigned long flags;
|
|
int res = 0;
|
|
|
|
/* Check if buffers are allocated */
|
|
if (!fh->jpg_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_queue_frame() - buffers not yet allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* No grabbing outside the buffer range! */
|
|
if (num >= fh->jpg_buffers.num_buffers || num < 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_queue_frame() - buffer %d out of range\n",
|
|
ZR_DEVNAME(zr), num);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* what is the codec mode right now? */
|
|
if (zr->codec_mode == BUZ_MODE_IDLE) {
|
|
zr->jpg_settings = fh->jpg_settings;
|
|
} else if (zr->codec_mode != mode) {
|
|
/* wrong codec mode active - invalid */
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_queue_frame() - codec in wrong mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (fh->jpg_buffers.active == ZORAN_FREE) {
|
|
if (zr->jpg_buffers.active == ZORAN_FREE) {
|
|
zr->jpg_buffers = fh->jpg_buffers;
|
|
fh->jpg_buffers.active = ZORAN_ACTIVE;
|
|
} else {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_queue_frame() - another session is already capturing\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
}
|
|
}
|
|
|
|
if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
|
|
/* Ok load up the jpeg codec */
|
|
zr36057_enable_jpg(zr, mode);
|
|
}
|
|
|
|
spin_lock_irqsave(&zr->spinlock, flags);
|
|
|
|
if (!res) {
|
|
switch (zr->jpg_buffers.buffer[num].state) {
|
|
case BUZ_STATE_DONE:
|
|
dprintk(2,
|
|
KERN_WARNING
|
|
"%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
|
|
ZR_DEVNAME(zr));
|
|
case BUZ_STATE_USER:
|
|
/* since there is at least one unused buffer there's room for at
|
|
*least one more pend[] entry */
|
|
zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
|
|
num;
|
|
zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
|
|
fh->jpg_buffers.buffer[num] =
|
|
zr->jpg_buffers.buffer[num];
|
|
zoran_feed_stat_com(zr);
|
|
break;
|
|
default:
|
|
case BUZ_STATE_DMA:
|
|
case BUZ_STATE_PEND:
|
|
if (zr->jpg_buffers.active == ZORAN_FREE) {
|
|
fh->jpg_buffers.active = ZORAN_FREE;
|
|
zr->jpg_buffers.allocated = 0;
|
|
}
|
|
res = -EBUSY; /* what are you doing? */
|
|
break;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(&zr->spinlock, flags);
|
|
|
|
if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
|
|
zr->jpg_buffers.active = fh->jpg_buffers.active;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int
|
|
jpg_qbuf (struct file *file,
|
|
int frame,
|
|
enum zoran_codec_mode mode)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int res = 0;
|
|
|
|
/* Does the user want to stop streaming? */
|
|
if (frame < 0) {
|
|
if (zr->codec_mode == mode) {
|
|
if (fh->jpg_buffers.active == ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_qbuf(-1) - session not active\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
fh->jpg_buffers.active = zr->jpg_buffers.active =
|
|
ZORAN_FREE;
|
|
zr->jpg_buffers.allocated = 0;
|
|
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
|
|
return 0;
|
|
} else {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if ((res = zoran_jpg_queue_frame(file, frame, mode)))
|
|
return res;
|
|
|
|
/* Start the jpeg codec when the first frame is queued */
|
|
if (!res && zr->jpg_que_head == 1)
|
|
jpeg_start(zr);
|
|
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* Sync on a MJPEG buffer
|
|
*/
|
|
|
|
static int
|
|
jpg_sync (struct file *file,
|
|
struct zoran_sync *bs)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
unsigned long flags;
|
|
int frame;
|
|
|
|
if (fh->jpg_buffers.active == ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_sync() - capture is not currently active\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
|
|
zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_sync() - codec not in streaming mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
if (!wait_event_interruptible_timeout(zr->jpg_capq,
|
|
(zr->jpg_que_tail != zr->jpg_dma_tail ||
|
|
zr->jpg_dma_tail == zr->jpg_dma_head),
|
|
10*HZ)) {
|
|
int isr;
|
|
|
|
btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
|
|
udelay(1);
|
|
zr->codec->control(zr->codec, CODEC_G_STATUS,
|
|
sizeof(isr), &isr);
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: jpg_sync() - timeout: codec isr=0x%02x\n",
|
|
ZR_DEVNAME(zr), isr);
|
|
|
|
return -ETIME;
|
|
|
|
}
|
|
if (signal_pending(current))
|
|
return -ERESTARTSYS;
|
|
|
|
spin_lock_irqsave(&zr->spinlock, flags);
|
|
|
|
if (zr->jpg_dma_tail != zr->jpg_dma_head)
|
|
frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
|
|
else
|
|
frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
|
|
|
|
/* buffer should now be in BUZ_STATE_DONE */
|
|
if (*zr_debug > 0)
|
|
if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
|
|
dprintk(2,
|
|
KERN_ERR
|
|
"%s: jpg_sync() - internal state error\n",
|
|
ZR_DEVNAME(zr));
|
|
|
|
*bs = zr->jpg_buffers.buffer[frame].bs;
|
|
bs->frame = frame;
|
|
zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
|
|
fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
|
|
|
|
spin_unlock_irqrestore(&zr->spinlock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
zoran_open_init_session (struct file *file)
|
|
{
|
|
int i;
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
/* Per default, map the V4L Buffers */
|
|
fh->map_mode = ZORAN_MAP_MODE_RAW;
|
|
|
|
/* take over the card's current settings */
|
|
fh->overlay_settings = zr->overlay_settings;
|
|
fh->overlay_settings.is_set = 0;
|
|
fh->overlay_settings.format = zr->overlay_settings.format;
|
|
fh->overlay_active = ZORAN_FREE;
|
|
|
|
/* v4l settings */
|
|
fh->v4l_settings = zr->v4l_settings;
|
|
|
|
/* v4l_buffers */
|
|
memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
|
|
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
|
|
fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
|
|
fh->v4l_buffers.buffer[i].bs.frame = i;
|
|
}
|
|
fh->v4l_buffers.allocated = 0;
|
|
fh->v4l_buffers.ready_to_be_freed = 0;
|
|
fh->v4l_buffers.active = ZORAN_FREE;
|
|
fh->v4l_buffers.buffer_size = v4l_bufsize;
|
|
fh->v4l_buffers.num_buffers = v4l_nbufs;
|
|
|
|
/* jpg settings */
|
|
fh->jpg_settings = zr->jpg_settings;
|
|
|
|
/* jpg_buffers */
|
|
memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
|
|
for (i = 0; i < BUZ_MAX_FRAME; i++) {
|
|
fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
|
|
fh->jpg_buffers.buffer[i].bs.frame = i;
|
|
}
|
|
fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
|
|
fh->jpg_buffers.allocated = 0;
|
|
fh->jpg_buffers.ready_to_be_freed = 0;
|
|
fh->jpg_buffers.active = ZORAN_FREE;
|
|
fh->jpg_buffers.buffer_size = jpg_bufsize;
|
|
fh->jpg_buffers.num_buffers = jpg_nbufs;
|
|
}
|
|
|
|
static void
|
|
zoran_close_end_session (struct file *file)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
/* overlay */
|
|
if (fh->overlay_active != ZORAN_FREE) {
|
|
fh->overlay_active = zr->overlay_active = ZORAN_FREE;
|
|
zr->v4l_overlay_active = 0;
|
|
if (!zr->v4l_memgrab_active)
|
|
zr36057_overlay(zr, 0);
|
|
zr->overlay_mask = NULL;
|
|
}
|
|
|
|
/* v4l capture */
|
|
if (fh->v4l_buffers.active != ZORAN_FREE) {
|
|
zr36057_set_memgrab(zr, 0);
|
|
zr->v4l_buffers.allocated = 0;
|
|
zr->v4l_buffers.active = fh->v4l_buffers.active =
|
|
ZORAN_FREE;
|
|
}
|
|
|
|
/* v4l buffers */
|
|
if (fh->v4l_buffers.allocated ||
|
|
fh->v4l_buffers.ready_to_be_freed) {
|
|
v4l_fbuffer_free(file);
|
|
}
|
|
|
|
/* jpg capture */
|
|
if (fh->jpg_buffers.active != ZORAN_FREE) {
|
|
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
|
|
zr->jpg_buffers.allocated = 0;
|
|
zr->jpg_buffers.active = fh->jpg_buffers.active =
|
|
ZORAN_FREE;
|
|
}
|
|
|
|
/* jpg buffers */
|
|
if (fh->jpg_buffers.allocated ||
|
|
fh->jpg_buffers.ready_to_be_freed) {
|
|
jpg_fbuffer_free(file);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Open a zoran card. Right now the flags stuff is just playing
|
|
*/
|
|
|
|
static int
|
|
zoran_open (struct inode *inode,
|
|
struct file *file)
|
|
{
|
|
unsigned int minor = iminor(inode);
|
|
struct zoran *zr = NULL;
|
|
struct zoran_fh *fh;
|
|
int i, res, first_open = 0, have_module_locks = 0;
|
|
|
|
/* find the device */
|
|
for (i = 0; i < zoran_num; i++) {
|
|
if (zoran[i].video_dev->minor == minor) {
|
|
zr = &zoran[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!zr) {
|
|
dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
|
|
res = -ENODEV;
|
|
goto open_unlock_and_return;
|
|
}
|
|
|
|
/* see fs/device.c - the kernel already locks during open(),
|
|
* so locking ourselves only causes deadlocks */
|
|
/*mutex_lock(&zr->resource_lock);*/
|
|
|
|
if (!zr->decoder) {
|
|
dprintk(1,
|
|
KERN_ERR "%s: no TV decoder loaded for device!\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EIO;
|
|
goto open_unlock_and_return;
|
|
}
|
|
|
|
/* try to grab a module lock */
|
|
if (!try_module_get(THIS_MODULE)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: failed to acquire my own lock! PANIC!\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -ENODEV;
|
|
goto open_unlock_and_return;
|
|
}
|
|
if (!try_module_get(zr->decoder->driver->driver.owner)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: failed to grab ownership of i2c decoder\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EIO;
|
|
module_put(THIS_MODULE);
|
|
goto open_unlock_and_return;
|
|
}
|
|
if (zr->encoder &&
|
|
!try_module_get(zr->encoder->driver->driver.owner)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: failed to grab ownership of i2c encoder\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EIO;
|
|
module_put(zr->decoder->driver->driver.owner);
|
|
module_put(THIS_MODULE);
|
|
goto open_unlock_and_return;
|
|
}
|
|
|
|
have_module_locks = 1;
|
|
|
|
if (zr->user >= 2048) {
|
|
dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
|
|
ZR_DEVNAME(zr), zr->user);
|
|
res = -EBUSY;
|
|
goto open_unlock_and_return;
|
|
}
|
|
|
|
dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
|
|
ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
|
|
|
|
/* now, create the open()-specific file_ops struct */
|
|
fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
|
|
if (!fh) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_open() - allocation of zoran_fh failed\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -ENOMEM;
|
|
goto open_unlock_and_return;
|
|
}
|
|
/* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
|
|
* on norm-change! */
|
|
fh->overlay_mask =
|
|
kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
|
|
if (!fh->overlay_mask) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_open() - allocation of overlay_mask failed\n",
|
|
ZR_DEVNAME(zr));
|
|
kfree(fh);
|
|
res = -ENOMEM;
|
|
goto open_unlock_and_return;
|
|
}
|
|
|
|
if (zr->user++ == 0)
|
|
first_open = 1;
|
|
|
|
/*mutex_unlock(&zr->resource_lock);*/
|
|
|
|
/* default setup - TODO: look at flags */
|
|
if (first_open) { /* First device open */
|
|
zr36057_restart(zr);
|
|
zoran_open_init_params(zr);
|
|
zoran_init_hardware(zr);
|
|
|
|
btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
|
|
}
|
|
|
|
/* set file_ops stuff */
|
|
file->private_data = fh;
|
|
fh->zr = zr;
|
|
zoran_open_init_session(file);
|
|
|
|
return 0;
|
|
|
|
open_unlock_and_return:
|
|
/* if we grabbed locks, release them accordingly */
|
|
if (have_module_locks) {
|
|
module_put(zr->decoder->driver->driver.owner);
|
|
if (zr->encoder) {
|
|
module_put(zr->encoder->driver->driver.owner);
|
|
}
|
|
module_put(THIS_MODULE);
|
|
}
|
|
|
|
/* if there's no device found, we didn't obtain the lock either */
|
|
if (zr) {
|
|
/*mutex_unlock(&zr->resource_lock);*/
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int
|
|
zoran_close (struct inode *inode,
|
|
struct file *file)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
|
|
ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
|
|
|
|
/* kernel locks (fs/device.c), so don't do that ourselves
|
|
* (prevents deadlocks) */
|
|
/*mutex_lock(&zr->resource_lock);*/
|
|
|
|
zoran_close_end_session(file);
|
|
|
|
if (zr->user-- == 1) { /* Last process */
|
|
/* Clean up JPEG process */
|
|
wake_up_interruptible(&zr->jpg_capq);
|
|
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
|
|
zr->jpg_buffers.allocated = 0;
|
|
zr->jpg_buffers.active = ZORAN_FREE;
|
|
|
|
/* disable interrupts */
|
|
btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
|
|
|
|
if (*zr_debug > 1)
|
|
print_interrupts(zr);
|
|
|
|
/* Overlay off */
|
|
zr->v4l_overlay_active = 0;
|
|
zr36057_overlay(zr, 0);
|
|
zr->overlay_mask = NULL;
|
|
|
|
/* capture off */
|
|
wake_up_interruptible(&zr->v4l_capq);
|
|
zr36057_set_memgrab(zr, 0);
|
|
zr->v4l_buffers.allocated = 0;
|
|
zr->v4l_buffers.active = ZORAN_FREE;
|
|
zoran_set_pci_master(zr, 0);
|
|
|
|
if (!pass_through) { /* Switch to color bar */
|
|
int zero = 0, two = 2;
|
|
decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
|
|
encoder_command(zr, ENCODER_SET_INPUT, &two);
|
|
}
|
|
}
|
|
|
|
file->private_data = NULL;
|
|
kfree(fh->overlay_mask);
|
|
kfree(fh);
|
|
|
|
/* release locks on the i2c modules */
|
|
module_put(zr->decoder->driver->driver.owner);
|
|
if (zr->encoder) {
|
|
module_put(zr->encoder->driver->driver.owner);
|
|
}
|
|
module_put(THIS_MODULE);
|
|
|
|
/*mutex_unlock(&zr->resource_lock);*/
|
|
|
|
dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static ssize_t
|
|
zoran_read (struct file *file,
|
|
char __user *data,
|
|
size_t count,
|
|
loff_t *ppos)
|
|
{
|
|
/* we simply don't support read() (yet)... */
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static ssize_t
|
|
zoran_write (struct file *file,
|
|
const char __user *data,
|
|
size_t count,
|
|
loff_t *ppos)
|
|
{
|
|
/* ...and the same goes for write() */
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int
|
|
setup_fbuffer (struct file *file,
|
|
void *base,
|
|
const struct zoran_format *fmt,
|
|
int width,
|
|
int height,
|
|
int bytesperline)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
/* (Ronald) v4l/v4l2 guidelines */
|
|
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
|
|
/* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
|
|
ALi Magik (that needs very low latency while the card needs a
|
|
higher value always) */
|
|
|
|
if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
|
|
return -ENXIO;
|
|
|
|
/* we need a bytesperline value, even if not given */
|
|
if (!bytesperline)
|
|
bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
|
|
|
|
#if 0
|
|
if (zr->overlay_active) {
|
|
/* dzjee... stupid users... don't even bother to turn off
|
|
* overlay before changing the memory location...
|
|
* normally, we would return errors here. However, one of
|
|
* the tools that does this is... xawtv! and since xawtv
|
|
* is used by +/- 99% of the users, we'd rather be user-
|
|
* friendly and silently do as if nothing went wrong */
|
|
dprintk(3,
|
|
KERN_ERR
|
|
"%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
|
|
ZR_DEVNAME(zr));
|
|
zr36057_overlay(zr, 0);
|
|
}
|
|
#endif
|
|
|
|
if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_fbuffer() - no valid overlay format given\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
if (height <= 0 || width <= 0 || bytesperline <= 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
|
|
ZR_DEVNAME(zr), width, height, bytesperline);
|
|
return -EINVAL;
|
|
}
|
|
if (bytesperline & 3) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
|
|
ZR_DEVNAME(zr), bytesperline);
|
|
return -EINVAL;
|
|
}
|
|
|
|
zr->buffer.base = (void *) ((unsigned long) base & ~3);
|
|
zr->buffer.height = height;
|
|
zr->buffer.width = width;
|
|
zr->buffer.depth = fmt->depth;
|
|
zr->overlay_settings.format = fmt;
|
|
zr->buffer.bytesperline = bytesperline;
|
|
|
|
/* The user should set new window parameters */
|
|
zr->overlay_settings.is_set = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
setup_window (struct file *file,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
int height,
|
|
struct video_clip __user *clips,
|
|
int clipcount,
|
|
void __user *bitmap)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
struct video_clip *vcp = NULL;
|
|
int on, end;
|
|
|
|
|
|
if (!zr->buffer.base) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_window() - frame buffer has to be set first\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!fh->overlay_settings.format) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_window() - no overlay format set\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* The video front end needs 4-byte alinged line sizes, we correct that
|
|
* silently here if necessary
|
|
*/
|
|
if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
|
|
end = (x + width) & ~1; /* round down */
|
|
x = (x + 1) & ~1; /* round up */
|
|
width = end - x;
|
|
}
|
|
|
|
if (zr->buffer.depth == 24) {
|
|
end = (x + width) & ~3; /* round down */
|
|
x = (x + 3) & ~3; /* round up */
|
|
width = end - x;
|
|
}
|
|
|
|
if (width > BUZ_MAX_WIDTH)
|
|
width = BUZ_MAX_WIDTH;
|
|
if (height > BUZ_MAX_HEIGHT)
|
|
height = BUZ_MAX_HEIGHT;
|
|
|
|
/* Check for vaild parameters */
|
|
if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
|
|
width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_window() - width = %d or height = %d invalid\n",
|
|
ZR_DEVNAME(zr), width, height);
|
|
return -EINVAL;
|
|
}
|
|
|
|
fh->overlay_settings.x = x;
|
|
fh->overlay_settings.y = y;
|
|
fh->overlay_settings.width = width;
|
|
fh->overlay_settings.height = height;
|
|
fh->overlay_settings.clipcount = clipcount;
|
|
|
|
/*
|
|
* If an overlay is running, we have to switch it off
|
|
* and switch it on again in order to get the new settings in effect.
|
|
*
|
|
* We also want to avoid that the overlay mask is written
|
|
* when an overlay is running.
|
|
*/
|
|
|
|
on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
|
|
zr->overlay_active != ZORAN_FREE &&
|
|
fh->overlay_active != ZORAN_FREE;
|
|
if (on)
|
|
zr36057_overlay(zr, 0);
|
|
|
|
/*
|
|
* Write the overlay mask if clips are wanted.
|
|
* We prefer a bitmap.
|
|
*/
|
|
if (bitmap) {
|
|
/* fake value - it just means we want clips */
|
|
fh->overlay_settings.clipcount = 1;
|
|
|
|
if (copy_from_user(fh->overlay_mask, bitmap,
|
|
(width * height + 7) / 8)) {
|
|
return -EFAULT;
|
|
}
|
|
} else if (clipcount > 0) {
|
|
/* write our own bitmap from the clips */
|
|
vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
|
|
if (vcp == NULL) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_window() - Alloc of clip mask failed\n",
|
|
ZR_DEVNAME(zr));
|
|
return -ENOMEM;
|
|
}
|
|
if (copy_from_user
|
|
(vcp, clips, sizeof(struct video_clip) * clipcount)) {
|
|
vfree(vcp);
|
|
return -EFAULT;
|
|
}
|
|
write_overlay_mask(file, vcp, clipcount);
|
|
vfree(vcp);
|
|
}
|
|
|
|
fh->overlay_settings.is_set = 1;
|
|
if (fh->overlay_active != ZORAN_FREE &&
|
|
zr->overlay_active != ZORAN_FREE)
|
|
zr->overlay_settings = fh->overlay_settings;
|
|
|
|
if (on)
|
|
zr36057_overlay(zr, 1);
|
|
|
|
/* Make sure the changes come into effect */
|
|
return wait_grab_pending(zr);
|
|
}
|
|
|
|
static int
|
|
setup_overlay (struct file *file,
|
|
int on)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
/* If there is nothing to do, return immediatly */
|
|
if ((on && fh->overlay_active != ZORAN_FREE) ||
|
|
(!on && fh->overlay_active == ZORAN_FREE))
|
|
return 0;
|
|
|
|
/* check whether we're touching someone else's overlay */
|
|
if (on && zr->overlay_active != ZORAN_FREE &&
|
|
fh->overlay_active == ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_overlay() - overlay is already active for another session\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EBUSY;
|
|
}
|
|
if (!on && zr->overlay_active != ZORAN_FREE &&
|
|
fh->overlay_active == ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_overlay() - you cannot cancel someone else's session\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EPERM;
|
|
}
|
|
|
|
if (on == 0) {
|
|
zr->overlay_active = fh->overlay_active = ZORAN_FREE;
|
|
zr->v4l_overlay_active = 0;
|
|
/* When a grab is running, the video simply
|
|
* won't be switched on any more */
|
|
if (!zr->v4l_memgrab_active)
|
|
zr36057_overlay(zr, 0);
|
|
zr->overlay_mask = NULL;
|
|
} else {
|
|
if (!zr->buffer.base || !fh->overlay_settings.is_set) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_overlay() - buffer or window not set\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
if (!fh->overlay_settings.format) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: setup_overlay() - no overlay format set\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
|
|
zr->v4l_overlay_active = 1;
|
|
zr->overlay_mask = fh->overlay_mask;
|
|
zr->overlay_settings = fh->overlay_settings;
|
|
if (!zr->v4l_memgrab_active)
|
|
zr36057_overlay(zr, 1);
|
|
/* When a grab is running, the video will be
|
|
* switched on when grab is finished */
|
|
}
|
|
|
|
/* Make sure the changes come into effect */
|
|
return wait_grab_pending(zr);
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2
|
|
/* get the status of a buffer in the clients buffer queue */
|
|
static int
|
|
zoran_v4l2_buffer_status (struct file *file,
|
|
struct v4l2_buffer *buf,
|
|
int num)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
|
|
buf->flags = V4L2_BUF_FLAG_MAPPED;
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW:
|
|
|
|
/* check range */
|
|
if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
|
|
!fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
buf->length = fh->v4l_buffers.buffer_size;
|
|
|
|
/* get buffer */
|
|
buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
|
|
if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
|
|
fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
|
|
buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
|
|
buf->flags |= V4L2_BUF_FLAG_DONE;
|
|
buf->timestamp =
|
|
fh->v4l_buffers.buffer[num].bs.timestamp;
|
|
} else {
|
|
buf->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
}
|
|
|
|
if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
|
|
buf->field = V4L2_FIELD_TOP;
|
|
else
|
|
buf->field = V4L2_FIELD_INTERLACED;
|
|
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
|
|
/* check range */
|
|
if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
|
|
!fh->jpg_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE :
|
|
V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
|
buf->length = fh->jpg_buffers.buffer_size;
|
|
|
|
/* these variables are only written after frame has been captured */
|
|
if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
|
|
fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
|
|
buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
|
|
buf->timestamp =
|
|
fh->jpg_buffers.buffer[num].bs.timestamp;
|
|
buf->bytesused =
|
|
fh->jpg_buffers.buffer[num].bs.length;
|
|
buf->flags |= V4L2_BUF_FLAG_DONE;
|
|
} else {
|
|
buf->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
}
|
|
|
|
/* which fields are these? */
|
|
if (fh->jpg_settings.TmpDcm != 1)
|
|
buf->field =
|
|
fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
|
|
else
|
|
buf->field =
|
|
fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_SEQ_TB :
|
|
V4L2_FIELD_SEQ_BT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
dprintk(5,
|
|
KERN_ERR
|
|
"%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
|
|
ZR_DEVNAME(zr), buf->type, fh->map_mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
|
buf->index = num;
|
|
buf->m.offset = buf->length * num;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
zoran_set_norm (struct zoran *zr,
|
|
int norm) /* VIDEO_MODE_* */
|
|
{
|
|
int norm_encoder, on;
|
|
|
|
if (zr->v4l_buffers.active != ZORAN_FREE ||
|
|
zr->jpg_buffers.active != ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_WARNING
|
|
"%s: set_norm() called while in playback/capture mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (lock_norm && norm != zr->norm) {
|
|
if (lock_norm > 1) {
|
|
dprintk(1,
|
|
KERN_WARNING
|
|
"%s: set_norm() - TV standard is locked, can not switch norm\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EPERM;
|
|
} else {
|
|
dprintk(1,
|
|
KERN_WARNING
|
|
"%s: set_norm() - TV standard is locked, norm was not changed\n",
|
|
ZR_DEVNAME(zr));
|
|
norm = zr->norm;
|
|
}
|
|
}
|
|
|
|
if (norm != VIDEO_MODE_AUTO &&
|
|
(norm < 0 || norm >= zr->card.norms ||
|
|
!zr->card.tvn[norm])) {
|
|
dprintk(1,
|
|
KERN_ERR "%s: set_norm() - unsupported norm %d\n",
|
|
ZR_DEVNAME(zr), norm);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (norm == VIDEO_MODE_AUTO) {
|
|
int status;
|
|
|
|
/* if we have autodetect, ... */
|
|
struct video_decoder_capability caps;
|
|
decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
|
|
if (!(caps.flags & VIDEO_DECODER_AUTO)) {
|
|
dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
decoder_command(zr, DECODER_SET_NORM, &norm);
|
|
|
|
/* let changes come into effect */
|
|
ssleep(2);
|
|
|
|
decoder_command(zr, DECODER_GET_STATUS, &status);
|
|
if (!(status & DECODER_STATUS_GOOD)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: set_norm() - no norm detected\n",
|
|
ZR_DEVNAME(zr));
|
|
/* reset norm */
|
|
decoder_command(zr, DECODER_SET_NORM, &zr->norm);
|
|
return -EIO;
|
|
}
|
|
|
|
if (status & DECODER_STATUS_NTSC)
|
|
norm = VIDEO_MODE_NTSC;
|
|
else if (status & DECODER_STATUS_SECAM)
|
|
norm = VIDEO_MODE_SECAM;
|
|
else
|
|
norm = VIDEO_MODE_PAL;
|
|
}
|
|
zr->timing = zr->card.tvn[norm];
|
|
norm_encoder = norm;
|
|
|
|
/* We switch overlay off and on since a change in the
|
|
* norm needs different VFE settings */
|
|
on = zr->overlay_active && !zr->v4l_memgrab_active;
|
|
if (on)
|
|
zr36057_overlay(zr, 0);
|
|
|
|
decoder_command(zr, DECODER_SET_NORM, &norm);
|
|
encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
|
|
|
|
if (on)
|
|
zr36057_overlay(zr, 1);
|
|
|
|
/* Make sure the changes come into effect */
|
|
zr->norm = norm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
zoran_set_input (struct zoran *zr,
|
|
int input)
|
|
{
|
|
int realinput;
|
|
|
|
if (input == zr->input) {
|
|
return 0;
|
|
}
|
|
|
|
if (zr->v4l_buffers.active != ZORAN_FREE ||
|
|
zr->jpg_buffers.active != ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_WARNING
|
|
"%s: set_input() called while in playback/capture mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (input < 0 || input >= zr->card.inputs) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: set_input() - unnsupported input %d\n",
|
|
ZR_DEVNAME(zr), input);
|
|
return -EINVAL;
|
|
}
|
|
|
|
realinput = zr->card.input[input].muxsel;
|
|
zr->input = input;
|
|
|
|
decoder_command(zr, DECODER_SET_INPUT, &realinput);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ioctl routine
|
|
*/
|
|
|
|
static int
|
|
zoran_do_ioctl (struct inode *inode,
|
|
struct file *file,
|
|
unsigned int cmd,
|
|
void *arg)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
/* CAREFUL: used in multiple places here */
|
|
struct zoran_jpg_settings settings;
|
|
|
|
/* we might have older buffers lying around... We don't want
|
|
* to wait, but we do want to try cleaning them up ASAP. So
|
|
* we try to obtain the lock and free them. If that fails, we
|
|
* don't do anything and wait for the next turn. In the end,
|
|
* zoran_close() or a new allocation will still free them...
|
|
* This is just a 'the sooner the better' extra 'feature'
|
|
*
|
|
* We don't free the buffers right on munmap() because that
|
|
* causes oopses (kfree() inside munmap() oopses for no
|
|
* apparent reason - it's also not reproduceable in any way,
|
|
* but moving the free code outside the munmap() handler fixes
|
|
* all this... If someone knows why, please explain me (Ronald)
|
|
*/
|
|
if (!!mutex_trylock(&zr->resource_lock)) {
|
|
/* we obtained it! Let's try to free some things */
|
|
if (fh->jpg_buffers.ready_to_be_freed)
|
|
jpg_fbuffer_free(file);
|
|
if (fh->v4l_buffers.ready_to_be_freed)
|
|
v4l_fbuffer_free(file);
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
}
|
|
|
|
switch (cmd) {
|
|
|
|
case VIDIOCGCAP:
|
|
{
|
|
struct video_capability *vcap = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
|
|
|
|
memset(vcap, 0, sizeof(struct video_capability));
|
|
strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
|
|
vcap->type = ZORAN_VID_TYPE;
|
|
|
|
vcap->channels = zr->card.inputs;
|
|
vcap->audios = 0;
|
|
mutex_lock(&zr->resource_lock);
|
|
vcap->maxwidth = BUZ_MAX_WIDTH;
|
|
vcap->maxheight = BUZ_MAX_HEIGHT;
|
|
vcap->minwidth = BUZ_MIN_WIDTH;
|
|
vcap->minheight = BUZ_MIN_HEIGHT;
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGCHAN:
|
|
{
|
|
struct video_channel *vchan = arg;
|
|
int channel = vchan->channel;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
|
|
ZR_DEVNAME(zr), vchan->channel);
|
|
|
|
memset(vchan, 0, sizeof(struct video_channel));
|
|
if (channel > zr->card.inputs || channel < 0) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOCGCHAN on not existing channel %d\n",
|
|
ZR_DEVNAME(zr), channel);
|
|
return -EINVAL;
|
|
}
|
|
|
|
strcpy(vchan->name, zr->card.input[channel].name);
|
|
|
|
vchan->tuners = 0;
|
|
vchan->flags = 0;
|
|
vchan->type = VIDEO_TYPE_CAMERA;
|
|
mutex_lock(&zr->resource_lock);
|
|
vchan->norm = zr->norm;
|
|
mutex_unlock(&zr->resource_lock);
|
|
vchan->channel = channel;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
/* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
|
|
*
|
|
* * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
|
|
* * ^^^^^^^
|
|
* * The famos BTTV driver has it implemented with a struct video_channel argument
|
|
* * and we follow it for compatibility reasons
|
|
* *
|
|
* * BTW: this is the only way the user can set the norm!
|
|
*/
|
|
|
|
case VIDIOCSCHAN:
|
|
{
|
|
struct video_channel *vchan = arg;
|
|
int res;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
|
|
ZR_DEVNAME(zr), vchan->channel, vchan->norm);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
if ((res = zoran_set_input(zr, vchan->channel)))
|
|
goto schan_unlock_and_return;
|
|
if ((res = zoran_set_norm(zr, vchan->norm)))
|
|
goto schan_unlock_and_return;
|
|
|
|
/* Make sure the changes come into effect */
|
|
res = wait_grab_pending(zr);
|
|
schan_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGPICT:
|
|
{
|
|
struct video_picture *vpict = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
|
|
|
|
memset(vpict, 0, sizeof(struct video_picture));
|
|
mutex_lock(&zr->resource_lock);
|
|
vpict->hue = zr->hue;
|
|
vpict->brightness = zr->brightness;
|
|
vpict->contrast = zr->contrast;
|
|
vpict->colour = zr->saturation;
|
|
if (fh->overlay_settings.format) {
|
|
vpict->depth = fh->overlay_settings.format->depth;
|
|
vpict->palette = fh->overlay_settings.format->palette;
|
|
} else {
|
|
vpict->depth = 0;
|
|
}
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCSPICT:
|
|
{
|
|
struct video_picture *vpict = arg;
|
|
int i;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
|
|
ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
|
|
vpict->colour, vpict->contrast, vpict->depth,
|
|
vpict->palette);
|
|
|
|
for (i = 0; i < zoran_num_formats; i++) {
|
|
const struct zoran_format *fmt = &zoran_formats[i];
|
|
|
|
if (fmt->palette != -1 &&
|
|
fmt->flags & ZORAN_FORMAT_OVERLAY &&
|
|
fmt->palette == vpict->palette &&
|
|
fmt->depth == vpict->depth)
|
|
break;
|
|
}
|
|
if (i == zoran_num_formats) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOCSPICT - Invalid palette %d\n",
|
|
ZR_DEVNAME(zr), vpict->palette);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
decoder_command(zr, DECODER_SET_PICTURE, vpict);
|
|
|
|
zr->hue = vpict->hue;
|
|
zr->contrast = vpict->contrast;
|
|
zr->saturation = vpict->colour;
|
|
zr->brightness = vpict->brightness;
|
|
|
|
fh->overlay_settings.format = &zoran_formats[i];
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCCAPTURE:
|
|
{
|
|
int *on = arg, res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
|
|
ZR_DEVNAME(zr), *on);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = setup_overlay(file, *on);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGWIN:
|
|
{
|
|
struct video_window *vwin = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
|
|
|
|
memset(vwin, 0, sizeof(struct video_window));
|
|
mutex_lock(&zr->resource_lock);
|
|
vwin->x = fh->overlay_settings.x;
|
|
vwin->y = fh->overlay_settings.y;
|
|
vwin->width = fh->overlay_settings.width;
|
|
vwin->height = fh->overlay_settings.height;
|
|
mutex_unlock(&zr->resource_lock);
|
|
vwin->clipcount = 0;
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCSWIN:
|
|
{
|
|
struct video_window *vwin = arg;
|
|
int res;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
|
|
ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
|
|
vwin->height, vwin->clipcount);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res =
|
|
setup_window(file, vwin->x, vwin->y, vwin->width,
|
|
vwin->height, vwin->clips,
|
|
vwin->clipcount, NULL);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGFBUF:
|
|
{
|
|
struct video_buffer *vbuf = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
*vbuf = zr->buffer;
|
|
mutex_unlock(&zr->resource_lock);
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCSFBUF:
|
|
{
|
|
struct video_buffer *vbuf = arg;
|
|
int i, res = 0;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
|
|
ZR_DEVNAME(zr), vbuf->base, vbuf->width,
|
|
vbuf->height, vbuf->depth, vbuf->bytesperline);
|
|
|
|
for (i = 0; i < zoran_num_formats; i++)
|
|
if (zoran_formats[i].depth == vbuf->depth)
|
|
break;
|
|
if (i == zoran_num_formats) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
|
|
ZR_DEVNAME(zr), vbuf->depth);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res =
|
|
setup_fbuffer(file, vbuf->base, &zoran_formats[i],
|
|
vbuf->width, vbuf->height,
|
|
vbuf->bytesperline);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCSYNC:
|
|
{
|
|
int *frame = arg, res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
|
|
ZR_DEVNAME(zr), *frame);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = v4l_sync(file, *frame);
|
|
mutex_unlock(&zr->resource_lock);
|
|
if (!res)
|
|
zr->v4l_sync_tail++;
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCMCAPTURE:
|
|
{
|
|
struct video_mmap *vmap = arg;
|
|
int res;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
|
|
ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
|
|
vmap->format);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = v4l_grab(file, vmap);
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGMBUF:
|
|
{
|
|
struct video_mbuf *vmbuf = arg;
|
|
int i, res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
|
|
|
|
vmbuf->size =
|
|
fh->v4l_buffers.num_buffers *
|
|
fh->v4l_buffers.buffer_size;
|
|
vmbuf->frames = fh->v4l_buffers.num_buffers;
|
|
for (i = 0; i < vmbuf->frames; i++) {
|
|
vmbuf->offsets[i] =
|
|
i * fh->v4l_buffers.buffer_size;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOCGMBUF - buffers already allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto v4l1reqbuf_unlock_and_return;
|
|
}
|
|
|
|
if (v4l_fbuffer_alloc(file)) {
|
|
res = -ENOMEM;
|
|
goto v4l1reqbuf_unlock_and_return;
|
|
}
|
|
|
|
/* The next mmap will map the V4L buffers */
|
|
fh->map_mode = ZORAN_MAP_MODE_RAW;
|
|
v4l1reqbuf_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCGUNIT:
|
|
{
|
|
struct video_unit *vunit = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
|
|
|
|
vunit->video = zr->video_dev->minor;
|
|
vunit->vbi = VIDEO_NO_UNIT;
|
|
vunit->radio = VIDEO_NO_UNIT;
|
|
vunit->audio = VIDEO_NO_UNIT;
|
|
vunit->teletext = VIDEO_NO_UNIT;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* RJ: In principal we could support subcaptures for V4L grabbing.
|
|
* Not even the famous BTTV driver has them, however.
|
|
* If there should be a strong demand, one could consider
|
|
* to implement them.
|
|
*/
|
|
case VIDIOCGCAPTURE:
|
|
{
|
|
dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
|
|
case VIDIOCSCAPTURE:
|
|
{
|
|
dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_G_PARAMS:
|
|
{
|
|
struct zoran_params *bparams = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
|
|
|
|
memset(bparams, 0, sizeof(struct zoran_params));
|
|
bparams->major_version = MAJOR_VERSION;
|
|
bparams->minor_version = MINOR_VERSION;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
bparams->norm = zr->norm;
|
|
bparams->input = zr->input;
|
|
|
|
bparams->decimation = fh->jpg_settings.decimation;
|
|
bparams->HorDcm = fh->jpg_settings.HorDcm;
|
|
bparams->VerDcm = fh->jpg_settings.VerDcm;
|
|
bparams->TmpDcm = fh->jpg_settings.TmpDcm;
|
|
bparams->field_per_buff = fh->jpg_settings.field_per_buff;
|
|
bparams->img_x = fh->jpg_settings.img_x;
|
|
bparams->img_y = fh->jpg_settings.img_y;
|
|
bparams->img_width = fh->jpg_settings.img_width;
|
|
bparams->img_height = fh->jpg_settings.img_height;
|
|
bparams->odd_even = fh->jpg_settings.odd_even;
|
|
|
|
bparams->quality = fh->jpg_settings.jpg_comp.quality;
|
|
bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
|
|
bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
|
|
memcpy(bparams->APP_data,
|
|
fh->jpg_settings.jpg_comp.APP_data,
|
|
sizeof(bparams->APP_data));
|
|
bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
|
|
memcpy(bparams->COM_data,
|
|
fh->jpg_settings.jpg_comp.COM_data,
|
|
sizeof(bparams->COM_data));
|
|
bparams->jpeg_markers =
|
|
fh->jpg_settings.jpg_comp.jpeg_markers;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
bparams->VFIFO_FB = 0;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_S_PARAMS:
|
|
{
|
|
struct zoran_params *bparams = arg;
|
|
int res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
|
|
|
|
settings.decimation = bparams->decimation;
|
|
settings.HorDcm = bparams->HorDcm;
|
|
settings.VerDcm = bparams->VerDcm;
|
|
settings.TmpDcm = bparams->TmpDcm;
|
|
settings.field_per_buff = bparams->field_per_buff;
|
|
settings.img_x = bparams->img_x;
|
|
settings.img_y = bparams->img_y;
|
|
settings.img_width = bparams->img_width;
|
|
settings.img_height = bparams->img_height;
|
|
settings.odd_even = bparams->odd_even;
|
|
|
|
settings.jpg_comp.quality = bparams->quality;
|
|
settings.jpg_comp.APPn = bparams->APPn;
|
|
settings.jpg_comp.APP_len = bparams->APP_len;
|
|
memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
|
|
sizeof(bparams->APP_data));
|
|
settings.jpg_comp.COM_len = bparams->COM_len;
|
|
memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
|
|
sizeof(bparams->COM_data));
|
|
settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (zr->codec_mode != BUZ_MODE_IDLE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto sparams_unlock_and_return;
|
|
}
|
|
|
|
/* Check the params first before overwriting our
|
|
* nternal values */
|
|
if (zoran_check_jpg_settings(zr, &settings)) {
|
|
res = -EINVAL;
|
|
goto sparams_unlock_and_return;
|
|
}
|
|
|
|
fh->jpg_settings = settings;
|
|
sparams_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_REQBUFS:
|
|
{
|
|
struct zoran_requestbuffers *breq = arg;
|
|
int res = 0;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
|
|
ZR_DEVNAME(zr), breq->count, breq->size);
|
|
|
|
/* Enforce reasonable lower and upper limits */
|
|
if (breq->count < 4)
|
|
breq->count = 4; /* Could be choosen smaller */
|
|
if (breq->count > jpg_nbufs)
|
|
breq->count = jpg_nbufs;
|
|
breq->size = PAGE_ALIGN(breq->size);
|
|
if (breq->size < 8192)
|
|
breq->size = 8192; /* Arbitrary */
|
|
/* breq->size is limited by 1 page for the stat_com
|
|
* tables to a Maximum of 2 MB */
|
|
if (breq->size > jpg_bufsize)
|
|
breq->size = jpg_bufsize;
|
|
if (fh->jpg_buffers.need_contiguous &&
|
|
breq->size > MAX_KMALLOC_MEM)
|
|
breq->size = MAX_KMALLOC_MEM;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: BUZIOC_REQBUFS - buffers allready allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto jpgreqbuf_unlock_and_return;
|
|
}
|
|
|
|
fh->jpg_buffers.num_buffers = breq->count;
|
|
fh->jpg_buffers.buffer_size = breq->size;
|
|
|
|
if (jpg_fbuffer_alloc(file)) {
|
|
res = -ENOMEM;
|
|
goto jpgreqbuf_unlock_and_return;
|
|
}
|
|
|
|
/* The next mmap will map the MJPEG buffers - could
|
|
* also be *_PLAY, but it doesn't matter here */
|
|
fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
|
|
jpgreqbuf_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_QBUF_CAPT:
|
|
{
|
|
int *frame = arg, res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
|
|
ZR_DEVNAME(zr), *frame);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_QBUF_PLAY:
|
|
{
|
|
int *frame = arg, res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
|
|
ZR_DEVNAME(zr), *frame);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_SYNC:
|
|
{
|
|
struct zoran_sync *bsync = arg;
|
|
int res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = jpg_sync(file, bsync);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case BUZIOC_G_STATUS:
|
|
{
|
|
struct zoran_status *bstat = arg;
|
|
int norm, input, status, res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
|
|
|
|
if (zr->codec_mode != BUZ_MODE_IDLE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
input = zr->card.input[bstat->input].muxsel;
|
|
norm = VIDEO_MODE_AUTO;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (zr->codec_mode != BUZ_MODE_IDLE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto gstat_unlock_and_return;
|
|
}
|
|
|
|
decoder_command(zr, DECODER_SET_INPUT, &input);
|
|
decoder_command(zr, DECODER_SET_NORM, &norm);
|
|
|
|
/* sleep 1 second */
|
|
ssleep(1);
|
|
|
|
/* Get status of video decoder */
|
|
decoder_command(zr, DECODER_GET_STATUS, &status);
|
|
|
|
/* restore previous input and norm */
|
|
input = zr->card.input[zr->input].muxsel;
|
|
decoder_command(zr, DECODER_SET_INPUT, &input);
|
|
decoder_command(zr, DECODER_SET_NORM, &zr->norm);
|
|
gstat_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
if (!res) {
|
|
bstat->signal =
|
|
(status & DECODER_STATUS_GOOD) ? 1 : 0;
|
|
if (status & DECODER_STATUS_NTSC)
|
|
bstat->norm = VIDEO_MODE_NTSC;
|
|
else if (status & DECODER_STATUS_SECAM)
|
|
bstat->norm = VIDEO_MODE_SECAM;
|
|
else
|
|
bstat->norm = VIDEO_MODE_PAL;
|
|
|
|
bstat->color =
|
|
(status & DECODER_STATUS_COLOR) ? 1 : 0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2
|
|
|
|
/* The new video4linux2 capture interface - much nicer than video4linux1, since
|
|
* it allows for integrating the JPEG capturing calls inside standard v4l2
|
|
*/
|
|
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *cap = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
|
|
|
|
memset(cap, 0, sizeof(*cap));
|
|
strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
|
|
strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
|
|
snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
|
|
pci_name(zr->pci_dev));
|
|
cap->version =
|
|
KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
|
|
RELEASE_VERSION);
|
|
cap->capabilities = ZORAN_V4L2_VID_FLAGS;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_ENUM_FMT:
|
|
{
|
|
struct v4l2_fmtdesc *fmt = arg;
|
|
int index = fmt->index, num = -1, i, flag = 0, type =
|
|
fmt->type;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
|
|
ZR_DEVNAME(zr), fmt->index);
|
|
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
flag = ZORAN_FORMAT_CAPTURE;
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
flag = ZORAN_FORMAT_PLAYBACK;
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
flag = ZORAN_FORMAT_OVERLAY;
|
|
break;
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_ENUM_FMT - unknown type %d\n",
|
|
ZR_DEVNAME(zr), fmt->type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < zoran_num_formats; i++) {
|
|
if (zoran_formats[i].flags & flag)
|
|
num++;
|
|
if (num == fmt->index)
|
|
break;
|
|
}
|
|
if (fmt->index < 0 /* late, but not too late */ ||
|
|
i == zoran_num_formats)
|
|
return -EINVAL;
|
|
|
|
memset(fmt, 0, sizeof(*fmt));
|
|
fmt->index = index;
|
|
fmt->type = type;
|
|
strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
|
|
fmt->pixelformat = zoran_formats[i].fourcc;
|
|
if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
|
|
fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_FMT:
|
|
{
|
|
struct v4l2_format *fmt = arg;
|
|
int type = fmt->type;
|
|
|
|
dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
|
|
|
|
memset(fmt, 0, sizeof(*fmt));
|
|
fmt->type = type;
|
|
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
fmt->fmt.win.w.left = fh->overlay_settings.x;
|
|
fmt->fmt.win.w.top = fh->overlay_settings.y;
|
|
fmt->fmt.win.w.width = fh->overlay_settings.width;
|
|
fmt->fmt.win.w.height =
|
|
fh->overlay_settings.height;
|
|
if (fh->overlay_settings.width * 2 >
|
|
BUZ_MAX_HEIGHT)
|
|
fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
|
|
else
|
|
fmt->fmt.win.field = V4L2_FIELD_TOP;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
break;
|
|
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
|
|
fh->map_mode == ZORAN_MAP_MODE_RAW) {
|
|
|
|
fmt->fmt.pix.width =
|
|
fh->v4l_settings.width;
|
|
fmt->fmt.pix.height =
|
|
fh->v4l_settings.height;
|
|
fmt->fmt.pix.sizeimage =
|
|
fh->v4l_buffers.buffer_size;
|
|
fmt->fmt.pix.pixelformat =
|
|
fh->v4l_settings.format->fourcc;
|
|
fmt->fmt.pix.colorspace =
|
|
fh->v4l_settings.format->colorspace;
|
|
fmt->fmt.pix.bytesperline = 0;
|
|
if (BUZ_MAX_HEIGHT <
|
|
(fh->v4l_settings.height * 2))
|
|
fmt->fmt.pix.field =
|
|
V4L2_FIELD_INTERLACED;
|
|
else
|
|
fmt->fmt.pix.field =
|
|
V4L2_FIELD_TOP;
|
|
|
|
} else {
|
|
|
|
fmt->fmt.pix.width =
|
|
fh->jpg_settings.img_width /
|
|
fh->jpg_settings.HorDcm;
|
|
fmt->fmt.pix.height =
|
|
fh->jpg_settings.img_height /
|
|
(fh->jpg_settings.VerDcm *
|
|
fh->jpg_settings.TmpDcm);
|
|
fmt->fmt.pix.sizeimage =
|
|
zoran_v4l2_calc_bufsize(&fh->
|
|
jpg_settings);
|
|
fmt->fmt.pix.pixelformat =
|
|
V4L2_PIX_FMT_MJPEG;
|
|
if (fh->jpg_settings.TmpDcm == 1)
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_SEQ_BT :
|
|
V4L2_FIELD_SEQ_BT);
|
|
else
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_TOP :
|
|
V4L2_FIELD_BOTTOM);
|
|
|
|
fmt->fmt.pix.bytesperline = 0;
|
|
fmt->fmt.pix.colorspace =
|
|
V4L2_COLORSPACE_SMPTE170M;
|
|
}
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
break;
|
|
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_G_FMT - unsupported type %d\n",
|
|
ZR_DEVNAME(zr), fmt->type);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_FMT:
|
|
{
|
|
struct v4l2_format *fmt = arg;
|
|
int i, res = 0;
|
|
__u32 printformat;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
|
|
ZR_DEVNAME(zr), fmt->type);
|
|
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
|
|
dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
|
|
fmt->fmt.win.w.left, fmt->fmt.win.w.top,
|
|
fmt->fmt.win.w.width,
|
|
fmt->fmt.win.w.height,
|
|
fmt->fmt.win.clipcount,
|
|
fmt->fmt.win.bitmap);
|
|
mutex_lock(&zr->resource_lock);
|
|
res =
|
|
setup_window(file, fmt->fmt.win.w.left,
|
|
fmt->fmt.win.w.top,
|
|
fmt->fmt.win.w.width,
|
|
fmt->fmt.win.w.height,
|
|
(struct video_clip __user *)
|
|
fmt->fmt.win.clips,
|
|
fmt->fmt.win.clipcount,
|
|
fmt->fmt.win.bitmap);
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
break;
|
|
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
|
|
printformat =
|
|
__cpu_to_le32(fmt->fmt.pix.pixelformat);
|
|
dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
|
|
fmt->fmt.pix.width, fmt->fmt.pix.height,
|
|
fmt->fmt.pix.pixelformat,
|
|
(char *) &printformat);
|
|
|
|
if (fmt->fmt.pix.bytesperline > 0) {
|
|
dprintk(5,
|
|
KERN_ERR "%s: bpl not supported\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* we can be requested to do JPEG/raw playback/capture */
|
|
if (!
|
|
(fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
(fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
|
|
fmt->fmt.pix.pixelformat ==
|
|
V4L2_PIX_FMT_MJPEG))) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
|
|
ZR_DEVNAME(zr), fmt->type,
|
|
fmt->fmt.pix.pixelformat,
|
|
(char *) &printformat);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
settings = fh->jpg_settings;
|
|
|
|
if (fh->v4l_buffers.allocated ||
|
|
fh->jpg_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FMT - cannot change capture mode\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto sfmtjpg_unlock_and_return;
|
|
}
|
|
|
|
/* we actually need to set 'real' parameters now */
|
|
if ((fmt->fmt.pix.height * 2) >
|
|
BUZ_MAX_HEIGHT)
|
|
settings.TmpDcm = 1;
|
|
else
|
|
settings.TmpDcm = 2;
|
|
settings.decimation = 0;
|
|
if (fmt->fmt.pix.height <=
|
|
fh->jpg_settings.img_height / 2)
|
|
settings.VerDcm = 2;
|
|
else
|
|
settings.VerDcm = 1;
|
|
if (fmt->fmt.pix.width <=
|
|
fh->jpg_settings.img_width / 4)
|
|
settings.HorDcm = 4;
|
|
else if (fmt->fmt.pix.width <=
|
|
fh->jpg_settings.img_width / 2)
|
|
settings.HorDcm = 2;
|
|
else
|
|
settings.HorDcm = 1;
|
|
if (settings.TmpDcm == 1)
|
|
settings.field_per_buff = 2;
|
|
else
|
|
settings.field_per_buff = 1;
|
|
|
|
/* check */
|
|
if ((res =
|
|
zoran_check_jpg_settings(zr,
|
|
&settings)))
|
|
goto sfmtjpg_unlock_and_return;
|
|
|
|
/* it's ok, so set them */
|
|
fh->jpg_settings = settings;
|
|
|
|
/* tell the user what we actually did */
|
|
fmt->fmt.pix.width =
|
|
settings.img_width / settings.HorDcm;
|
|
fmt->fmt.pix.height =
|
|
settings.img_height * 2 /
|
|
(settings.TmpDcm * settings.VerDcm);
|
|
if (settings.TmpDcm == 1)
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_SEQ_TB :
|
|
V4L2_FIELD_SEQ_BT);
|
|
else
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_TOP :
|
|
V4L2_FIELD_BOTTOM);
|
|
fh->jpg_buffers.buffer_size =
|
|
zoran_v4l2_calc_bufsize(&fh->
|
|
jpg_settings);
|
|
fmt->fmt.pix.sizeimage =
|
|
fh->jpg_buffers.buffer_size;
|
|
|
|
/* we hereby abuse this variable to show that
|
|
* we're gonna do mjpeg capture */
|
|
fh->map_mode =
|
|
(fmt->type ==
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
|
|
ZORAN_MAP_MODE_JPG_REC :
|
|
ZORAN_MAP_MODE_JPG_PLAY;
|
|
sfmtjpg_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
} else {
|
|
for (i = 0; i < zoran_num_formats; i++)
|
|
if (fmt->fmt.pix.pixelformat ==
|
|
zoran_formats[i].fourcc)
|
|
break;
|
|
if (i == zoran_num_formats) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
|
|
ZR_DEVNAME(zr),
|
|
fmt->fmt.pix.pixelformat,
|
|
(char *) &printformat);
|
|
return -EINVAL;
|
|
}
|
|
mutex_lock(&zr->resource_lock);
|
|
if (fh->jpg_buffers.allocated ||
|
|
(fh->v4l_buffers.allocated &&
|
|
fh->v4l_buffers.active !=
|
|
ZORAN_FREE)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FMT - cannot change capture mode\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto sfmtv4l_unlock_and_return;
|
|
}
|
|
if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
|
|
fmt->fmt.pix.height =
|
|
BUZ_MAX_HEIGHT;
|
|
if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
|
|
fmt->fmt.pix.width = BUZ_MAX_WIDTH;
|
|
|
|
if ((res =
|
|
zoran_v4l_set_format(file,
|
|
fmt->fmt.pix.
|
|
width,
|
|
fmt->fmt.pix.
|
|
height,
|
|
&zoran_formats
|
|
[i])))
|
|
goto sfmtv4l_unlock_and_return;
|
|
|
|
/* tell the user the
|
|
* results/missing stuff */
|
|
fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size /*zr->gbpl * zr->gheight */
|
|
;
|
|
if (BUZ_MAX_HEIGHT <
|
|
(fh->v4l_settings.height * 2))
|
|
fmt->fmt.pix.field =
|
|
V4L2_FIELD_INTERLACED;
|
|
else
|
|
fmt->fmt.pix.field =
|
|
V4L2_FIELD_TOP;
|
|
|
|
fh->map_mode = ZORAN_MAP_MODE_RAW;
|
|
sfmtv4l_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
dprintk(3, "unsupported\n");
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FMT - unsupported type %d\n",
|
|
ZR_DEVNAME(zr), fmt->type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_FBUF:
|
|
{
|
|
struct v4l2_framebuffer *fb = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
|
|
|
|
memset(fb, 0, sizeof(*fb));
|
|
mutex_lock(&zr->resource_lock);
|
|
fb->base = zr->buffer.base;
|
|
fb->fmt.width = zr->buffer.width;
|
|
fb->fmt.height = zr->buffer.height;
|
|
if (zr->overlay_settings.format) {
|
|
fb->fmt.pixelformat =
|
|
fh->overlay_settings.format->fourcc;
|
|
}
|
|
fb->fmt.bytesperline = zr->buffer.bytesperline;
|
|
mutex_unlock(&zr->resource_lock);
|
|
fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
|
|
fb->fmt.field = V4L2_FIELD_INTERLACED;
|
|
fb->flags = V4L2_FBUF_FLAG_OVERLAY;
|
|
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_FBUF:
|
|
{
|
|
int i, res = 0;
|
|
struct v4l2_framebuffer *fb = arg;
|
|
__u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
|
|
ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
|
|
fb->fmt.bytesperline, fb->fmt.pixelformat,
|
|
(char *) &printformat);
|
|
|
|
for (i = 0; i < zoran_num_formats; i++)
|
|
if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
|
|
break;
|
|
if (i == zoran_num_formats) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
|
|
ZR_DEVNAME(zr), fb->fmt.pixelformat,
|
|
(char *) &printformat);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res =
|
|
setup_fbuffer(file, fb->base, &zoran_formats[i],
|
|
fb->fmt.width, fb->fmt.height,
|
|
fb->fmt.bytesperline);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_OVERLAY:
|
|
{
|
|
int *on = arg, res;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
|
|
ZR_DEVNAME(zr), *on);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = setup_overlay(file, *on);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_REQBUFS:
|
|
{
|
|
struct v4l2_requestbuffers *req = arg;
|
|
int res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
|
|
ZR_DEVNAME(zr), req->type);
|
|
|
|
if (req->memory != V4L2_MEMORY_MMAP) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: only MEMORY_MMAP capture is supported, not %d\n",
|
|
ZR_DEVNAME(zr), req->memory);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_REQBUFS - buffers allready allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto v4l2reqbuf_unlock_and_return;
|
|
}
|
|
|
|
if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
|
|
req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
|
|
/* control user input */
|
|
if (req->count < 2)
|
|
req->count = 2;
|
|
if (req->count > v4l_nbufs)
|
|
req->count = v4l_nbufs;
|
|
fh->v4l_buffers.num_buffers = req->count;
|
|
|
|
if (v4l_fbuffer_alloc(file)) {
|
|
res = -ENOMEM;
|
|
goto v4l2reqbuf_unlock_and_return;
|
|
}
|
|
|
|
/* The next mmap will map the V4L buffers */
|
|
fh->map_mode = ZORAN_MAP_MODE_RAW;
|
|
|
|
} else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
|
|
fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
|
|
|
|
/* we need to calculate size ourselves now */
|
|
if (req->count < 4)
|
|
req->count = 4;
|
|
if (req->count > jpg_nbufs)
|
|
req->count = jpg_nbufs;
|
|
fh->jpg_buffers.num_buffers = req->count;
|
|
fh->jpg_buffers.buffer_size =
|
|
zoran_v4l2_calc_bufsize(&fh->jpg_settings);
|
|
|
|
if (jpg_fbuffer_alloc(file)) {
|
|
res = -ENOMEM;
|
|
goto v4l2reqbuf_unlock_and_return;
|
|
}
|
|
|
|
/* The next mmap will map the MJPEG buffers */
|
|
if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
|
|
else
|
|
fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
|
|
|
|
} else {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_REQBUFS - unknown type %d\n",
|
|
ZR_DEVNAME(zr), req->type);
|
|
res = -EINVAL;
|
|
goto v4l2reqbuf_unlock_and_return;
|
|
}
|
|
v4l2reqbuf_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_QUERYBUF:
|
|
{
|
|
struct v4l2_buffer *buf = arg;
|
|
__u32 type = buf->type;
|
|
int index = buf->index, res;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
|
|
ZR_DEVNAME(zr), buf->index, buf->type);
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
buf->type = type;
|
|
buf->index = index;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
res = zoran_v4l2_buffer_status(file, buf, buf->index);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_QBUF:
|
|
{
|
|
struct v4l2_buffer *buf = arg;
|
|
int res = 0, codec_mode, buf_type;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
|
|
ZR_DEVNAME(zr), buf->type, buf->index);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW:
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
|
|
ZR_DEVNAME(zr), buf->type, fh->map_mode);
|
|
res = -EINVAL;
|
|
goto qbuf_unlock_and_return;
|
|
}
|
|
|
|
res = zoran_v4l_queue_frame(file, buf->index);
|
|
if (res)
|
|
goto qbuf_unlock_and_return;
|
|
if (!zr->v4l_memgrab_active &&
|
|
fh->v4l_buffers.active == ZORAN_LOCKED)
|
|
zr36057_set_memgrab(zr, 1);
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
|
codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
|
|
} else {
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
codec_mode = BUZ_MODE_MOTION_COMPRESS;
|
|
}
|
|
|
|
if (buf->type != buf_type) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
|
|
ZR_DEVNAME(zr), buf->type, fh->map_mode);
|
|
res = -EINVAL;
|
|
goto qbuf_unlock_and_return;
|
|
}
|
|
|
|
res =
|
|
zoran_jpg_queue_frame(file, buf->index,
|
|
codec_mode);
|
|
if (res != 0)
|
|
goto qbuf_unlock_and_return;
|
|
if (zr->codec_mode == BUZ_MODE_IDLE &&
|
|
fh->jpg_buffers.active == ZORAN_LOCKED) {
|
|
zr36057_enable_jpg(zr, codec_mode);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_QBUF - unsupported type %d\n",
|
|
ZR_DEVNAME(zr), buf->type);
|
|
res = -EINVAL;
|
|
goto qbuf_unlock_and_return;
|
|
}
|
|
qbuf_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_DQBUF:
|
|
{
|
|
struct v4l2_buffer *buf = arg;
|
|
int res = 0, buf_type, num = -1; /* compiler borks here (?) */
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
|
|
ZR_DEVNAME(zr), buf->type);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW:
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
|
|
ZR_DEVNAME(zr), buf->type, fh->map_mode);
|
|
res = -EINVAL;
|
|
goto dqbuf_unlock_and_return;
|
|
}
|
|
|
|
num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
|
|
if (file->f_flags & O_NONBLOCK &&
|
|
zr->v4l_buffers.buffer[num].state !=
|
|
BUZ_STATE_DONE) {
|
|
res = -EAGAIN;
|
|
goto dqbuf_unlock_and_return;
|
|
}
|
|
res = v4l_sync(file, num);
|
|
if (res)
|
|
goto dqbuf_unlock_and_return;
|
|
else
|
|
zr->v4l_sync_tail++;
|
|
res = zoran_v4l2_buffer_status(file, buf, num);
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
{
|
|
struct zoran_sync bs;
|
|
|
|
if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
|
else
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (buf->type != buf_type) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
|
|
ZR_DEVNAME(zr), buf->type, fh->map_mode);
|
|
res = -EINVAL;
|
|
goto dqbuf_unlock_and_return;
|
|
}
|
|
|
|
num =
|
|
zr->jpg_pend[zr->
|
|
jpg_que_tail & BUZ_MASK_FRAME];
|
|
|
|
if (file->f_flags & O_NONBLOCK &&
|
|
zr->jpg_buffers.buffer[num].state !=
|
|
BUZ_STATE_DONE) {
|
|
res = -EAGAIN;
|
|
goto dqbuf_unlock_and_return;
|
|
}
|
|
res = jpg_sync(file, &bs);
|
|
if (res)
|
|
goto dqbuf_unlock_and_return;
|
|
res =
|
|
zoran_v4l2_buffer_status(file, buf, bs.frame);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_DQBUF - unsupported type %d\n",
|
|
ZR_DEVNAME(zr), buf->type);
|
|
res = -EINVAL;
|
|
goto dqbuf_unlock_and_return;
|
|
}
|
|
dqbuf_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_STREAMON:
|
|
{
|
|
int res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW: /* raw capture */
|
|
if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
|
|
fh->v4l_buffers.active != ZORAN_ACTIVE) {
|
|
res = -EBUSY;
|
|
goto strmon_unlock_and_return;
|
|
}
|
|
|
|
zr->v4l_buffers.active = fh->v4l_buffers.active =
|
|
ZORAN_LOCKED;
|
|
zr->v4l_settings = fh->v4l_settings;
|
|
|
|
zr->v4l_sync_tail = zr->v4l_pend_tail;
|
|
if (!zr->v4l_memgrab_active &&
|
|
zr->v4l_pend_head != zr->v4l_pend_tail) {
|
|
zr36057_set_memgrab(zr, 1);
|
|
}
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
/* what is the codec mode right now? */
|
|
if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
|
|
fh->jpg_buffers.active != ZORAN_ACTIVE) {
|
|
res = -EBUSY;
|
|
goto strmon_unlock_and_return;
|
|
}
|
|
|
|
zr->jpg_buffers.active = fh->jpg_buffers.active =
|
|
ZORAN_LOCKED;
|
|
|
|
if (zr->jpg_que_head != zr->jpg_que_tail) {
|
|
/* Start the jpeg codec when the first frame is queued */
|
|
jpeg_start(zr);
|
|
}
|
|
|
|
break;
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_STREAMON - invalid map mode %d\n",
|
|
ZR_DEVNAME(zr), fh->map_mode);
|
|
res = -EINVAL;
|
|
goto strmon_unlock_and_return;
|
|
}
|
|
strmon_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_STREAMOFF:
|
|
{
|
|
int i, res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW: /* raw capture */
|
|
if (fh->v4l_buffers.active == ZORAN_FREE &&
|
|
zr->v4l_buffers.active != ZORAN_FREE) {
|
|
res = -EPERM; /* stay off other's settings! */
|
|
goto strmoff_unlock_and_return;
|
|
}
|
|
if (zr->v4l_buffers.active == ZORAN_FREE)
|
|
goto strmoff_unlock_and_return;
|
|
|
|
/* unload capture */
|
|
if (zr->v4l_memgrab_active)
|
|
zr36057_set_memgrab(zr, 0);
|
|
|
|
for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
|
|
zr->v4l_buffers.buffer[i].state =
|
|
BUZ_STATE_USER;
|
|
fh->v4l_buffers = zr->v4l_buffers;
|
|
|
|
zr->v4l_buffers.active = fh->v4l_buffers.active =
|
|
ZORAN_FREE;
|
|
|
|
zr->v4l_grab_seq = 0;
|
|
zr->v4l_pend_head = zr->v4l_pend_tail = 0;
|
|
zr->v4l_sync_tail = 0;
|
|
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
if (fh->jpg_buffers.active == ZORAN_FREE &&
|
|
zr->jpg_buffers.active != ZORAN_FREE) {
|
|
res = -EPERM; /* stay off other's settings! */
|
|
goto strmoff_unlock_and_return;
|
|
}
|
|
if (zr->jpg_buffers.active == ZORAN_FREE)
|
|
goto strmoff_unlock_and_return;
|
|
|
|
res =
|
|
jpg_qbuf(file, -1,
|
|
(fh->map_mode ==
|
|
ZORAN_MAP_MODE_JPG_REC) ?
|
|
BUZ_MODE_MOTION_COMPRESS :
|
|
BUZ_MODE_MOTION_DECOMPRESS);
|
|
if (res)
|
|
goto strmoff_unlock_and_return;
|
|
break;
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
|
|
ZR_DEVNAME(zr), fh->map_mode);
|
|
res = -EINVAL;
|
|
goto strmoff_unlock_and_return;
|
|
}
|
|
strmoff_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
struct v4l2_queryctrl *ctrl = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
|
|
ZR_DEVNAME(zr), ctrl->id);
|
|
|
|
/* we only support hue/saturation/contrast/brightness */
|
|
if (ctrl->id < V4L2_CID_BRIGHTNESS ||
|
|
ctrl->id > V4L2_CID_HUE)
|
|
return -EINVAL;
|
|
else {
|
|
int id = ctrl->id;
|
|
memset(ctrl, 0, sizeof(*ctrl));
|
|
ctrl->id = id;
|
|
}
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
|
|
break;
|
|
}
|
|
|
|
ctrl->minimum = 0;
|
|
ctrl->maximum = 65535;
|
|
ctrl->step = 1;
|
|
ctrl->default_value = 32768;
|
|
ctrl->type = V4L2_CTRL_TYPE_INTEGER;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
|
|
ZR_DEVNAME(zr), ctrl->id);
|
|
|
|
/* we only support hue/saturation/contrast/brightness */
|
|
if (ctrl->id < V4L2_CID_BRIGHTNESS ||
|
|
ctrl->id > V4L2_CID_HUE)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
ctrl->value = zr->brightness;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
ctrl->value = zr->contrast;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
ctrl->value = zr->saturation;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
ctrl->value = zr->hue;
|
|
break;
|
|
}
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
struct video_picture pict;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
|
|
ZR_DEVNAME(zr), ctrl->id);
|
|
|
|
/* we only support hue/saturation/contrast/brightness */
|
|
if (ctrl->id < V4L2_CID_BRIGHTNESS ||
|
|
ctrl->id > V4L2_CID_HUE)
|
|
return -EINVAL;
|
|
|
|
if (ctrl->value < 0 || ctrl->value > 65535) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
|
|
ZR_DEVNAME(zr), ctrl->value, ctrl->id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
zr->brightness = ctrl->value;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
zr->contrast = ctrl->value;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
zr->saturation = ctrl->value;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
zr->hue = ctrl->value;
|
|
break;
|
|
}
|
|
pict.brightness = zr->brightness;
|
|
pict.contrast = zr->contrast;
|
|
pict.colour = zr->saturation;
|
|
pict.hue = zr->hue;
|
|
|
|
decoder_command(zr, DECODER_SET_PICTURE, &pict);
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_ENUMSTD:
|
|
{
|
|
struct v4l2_standard *std = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
|
|
ZR_DEVNAME(zr), std->index);
|
|
|
|
if (std->index < 0 || std->index >= (zr->card.norms + 1))
|
|
return -EINVAL;
|
|
else {
|
|
int id = std->index;
|
|
memset(std, 0, sizeof(*std));
|
|
std->index = id;
|
|
}
|
|
|
|
if (std->index == zr->card.norms) {
|
|
/* if we have autodetect, ... */
|
|
struct video_decoder_capability caps;
|
|
decoder_command(zr, DECODER_GET_CAPABILITIES,
|
|
&caps);
|
|
if (caps.flags & VIDEO_DECODER_AUTO) {
|
|
std->id = V4L2_STD_ALL;
|
|
strncpy(std->name, "Autodetect", sizeof(std->name)-1);
|
|
return 0;
|
|
} else
|
|
return -EINVAL;
|
|
}
|
|
switch (std->index) {
|
|
case 0:
|
|
std->id = V4L2_STD_PAL;
|
|
strncpy(std->name, "PAL", sizeof(std->name)-1);
|
|
std->frameperiod.numerator = 1;
|
|
std->frameperiod.denominator = 25;
|
|
std->framelines = zr->card.tvn[0]->Ht;
|
|
break;
|
|
case 1:
|
|
std->id = V4L2_STD_NTSC;
|
|
strncpy(std->name, "NTSC", sizeof(std->name)-1);
|
|
std->frameperiod.numerator = 1001;
|
|
std->frameperiod.denominator = 30000;
|
|
std->framelines = zr->card.tvn[1]->Ht;
|
|
break;
|
|
case 2:
|
|
std->id = V4L2_STD_SECAM;
|
|
strncpy(std->name, "SECAM", sizeof(std->name)-1);
|
|
std->frameperiod.numerator = 1;
|
|
std->frameperiod.denominator = 25;
|
|
std->framelines = zr->card.tvn[2]->Ht;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_STD:
|
|
{
|
|
v4l2_std_id *std = arg;
|
|
int norm;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
norm = zr->norm;
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
switch (norm) {
|
|
case VIDEO_MODE_PAL:
|
|
*std = V4L2_STD_PAL;
|
|
break;
|
|
case VIDEO_MODE_NTSC:
|
|
*std = V4L2_STD_NTSC;
|
|
break;
|
|
case VIDEO_MODE_SECAM:
|
|
*std = V4L2_STD_SECAM;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_STD:
|
|
{
|
|
int norm = -1, res = 0;
|
|
v4l2_std_id *std = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
|
|
ZR_DEVNAME(zr), (unsigned long long)*std);
|
|
|
|
if (*std == V4L2_STD_PAL)
|
|
norm = VIDEO_MODE_PAL;
|
|
else if (*std == V4L2_STD_NTSC)
|
|
norm = VIDEO_MODE_NTSC;
|
|
else if (*std == V4L2_STD_SECAM)
|
|
norm = VIDEO_MODE_SECAM;
|
|
else if (*std == V4L2_STD_ALL)
|
|
norm = VIDEO_MODE_AUTO;
|
|
else {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
|
|
ZR_DEVNAME(zr), (unsigned long long)*std);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
if ((res = zoran_set_norm(zr, norm)))
|
|
goto sstd_unlock_and_return;
|
|
|
|
res = wait_grab_pending(zr);
|
|
sstd_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_ENUMINPUT:
|
|
{
|
|
struct v4l2_input *inp = arg;
|
|
int status;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
|
|
ZR_DEVNAME(zr), inp->index);
|
|
|
|
if (inp->index < 0 || inp->index >= zr->card.inputs)
|
|
return -EINVAL;
|
|
else {
|
|
int id = inp->index;
|
|
memset(inp, 0, sizeof(*inp));
|
|
inp->index = id;
|
|
}
|
|
|
|
strncpy(inp->name, zr->card.input[inp->index].name,
|
|
sizeof(inp->name) - 1);
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
inp->std = V4L2_STD_ALL;
|
|
|
|
/* Get status of video decoder */
|
|
mutex_lock(&zr->resource_lock);
|
|
decoder_command(zr, DECODER_GET_STATUS, &status);
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
if (!(status & DECODER_STATUS_GOOD)) {
|
|
inp->status |= V4L2_IN_ST_NO_POWER;
|
|
inp->status |= V4L2_IN_ST_NO_SIGNAL;
|
|
}
|
|
if (!(status & DECODER_STATUS_COLOR))
|
|
inp->status |= V4L2_IN_ST_NO_COLOR;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_INPUT:
|
|
{
|
|
int *input = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
*input = zr->input;
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_INPUT:
|
|
{
|
|
int *input = arg, res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
|
|
ZR_DEVNAME(zr), *input);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
if ((res = zoran_set_input(zr, *input)))
|
|
goto sinput_unlock_and_return;
|
|
|
|
/* Make sure the changes come into effect */
|
|
res = wait_grab_pending(zr);
|
|
sinput_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_ENUMOUTPUT:
|
|
{
|
|
struct v4l2_output *outp = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
|
|
ZR_DEVNAME(zr), outp->index);
|
|
|
|
if (outp->index != 0)
|
|
return -EINVAL;
|
|
|
|
memset(outp, 0, sizeof(*outp));
|
|
outp->index = 0;
|
|
outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
|
|
strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_OUTPUT:
|
|
{
|
|
int *output = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
|
|
|
|
*output = 0;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_OUTPUT:
|
|
{
|
|
int *output = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
|
|
ZR_DEVNAME(zr), *output);
|
|
|
|
if (*output != 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
/* cropping (sub-frame capture) */
|
|
case VIDIOC_CROPCAP:
|
|
{
|
|
struct v4l2_cropcap *cropcap = arg;
|
|
int type = cropcap->type, res = 0;
|
|
|
|
dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
|
|
ZR_DEVNAME(zr), cropcap->type);
|
|
|
|
memset(cropcap, 0, sizeof(*cropcap));
|
|
cropcap->type = type;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
|
|
(cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
fh->map_mode == ZORAN_MAP_MODE_RAW)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto cropcap_unlock_and_return;
|
|
}
|
|
|
|
cropcap->bounds.top = cropcap->bounds.left = 0;
|
|
cropcap->bounds.width = BUZ_MAX_WIDTH;
|
|
cropcap->bounds.height = BUZ_MAX_HEIGHT;
|
|
cropcap->defrect.top = cropcap->defrect.left = 0;
|
|
cropcap->defrect.width = BUZ_MIN_WIDTH;
|
|
cropcap->defrect.height = BUZ_MIN_HEIGHT;
|
|
cropcap_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_CROP:
|
|
{
|
|
struct v4l2_crop *crop = arg;
|
|
int type = crop->type, res = 0;
|
|
|
|
dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
|
|
ZR_DEVNAME(zr), crop->type);
|
|
|
|
memset(crop, 0, sizeof(*crop));
|
|
crop->type = type;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
|
|
(crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
fh->map_mode == ZORAN_MAP_MODE_RAW)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto gcrop_unlock_and_return;
|
|
}
|
|
|
|
crop->c.top = fh->jpg_settings.img_y;
|
|
crop->c.left = fh->jpg_settings.img_x;
|
|
crop->c.width = fh->jpg_settings.img_width;
|
|
crop->c.height = fh->jpg_settings.img_height;
|
|
|
|
gcrop_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_CROP:
|
|
{
|
|
struct v4l2_crop *crop = arg;
|
|
int res = 0;
|
|
|
|
settings = fh->jpg_settings;
|
|
|
|
dprintk(3,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
|
|
ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
|
|
crop->c.width, crop->c.height);
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_S_CROP - cannot change settings while active\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto scrop_unlock_and_return;
|
|
}
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
|
|
(crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
fh->map_mode == ZORAN_MAP_MODE_RAW)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EINVAL;
|
|
goto scrop_unlock_and_return;
|
|
}
|
|
|
|
/* move into a form that we understand */
|
|
settings.img_x = crop->c.left;
|
|
settings.img_y = crop->c.top;
|
|
settings.img_width = crop->c.width;
|
|
settings.img_height = crop->c.height;
|
|
|
|
/* check validity */
|
|
if ((res = zoran_check_jpg_settings(zr, &settings)))
|
|
goto scrop_unlock_and_return;
|
|
|
|
/* accept */
|
|
fh->jpg_settings = settings;
|
|
|
|
scrop_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
return res;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_G_JPEGCOMP:
|
|
{
|
|
struct v4l2_jpegcompression *params = arg;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
|
|
ZR_DEVNAME(zr));
|
|
|
|
memset(params, 0, sizeof(*params));
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
params->quality = fh->jpg_settings.jpg_comp.quality;
|
|
params->APPn = fh->jpg_settings.jpg_comp.APPn;
|
|
memcpy(params->APP_data,
|
|
fh->jpg_settings.jpg_comp.APP_data,
|
|
fh->jpg_settings.jpg_comp.APP_len);
|
|
params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
|
|
memcpy(params->COM_data,
|
|
fh->jpg_settings.jpg_comp.COM_data,
|
|
fh->jpg_settings.jpg_comp.COM_len);
|
|
params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
|
|
params->jpeg_markers =
|
|
fh->jpg_settings.jpg_comp.jpeg_markers;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_S_JPEGCOMP:
|
|
{
|
|
struct v4l2_jpegcompression *params = arg;
|
|
int res = 0;
|
|
|
|
settings = fh->jpg_settings;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG
|
|
"%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
|
|
ZR_DEVNAME(zr), params->quality, params->APPn,
|
|
params->APP_len, params->COM_len);
|
|
|
|
settings.jpg_comp = *params;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->v4l_buffers.active != ZORAN_FREE ||
|
|
fh->jpg_buffers.active != ZORAN_FREE) {
|
|
dprintk(1,
|
|
KERN_WARNING
|
|
"%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EBUSY;
|
|
goto sjpegc_unlock_and_return;
|
|
}
|
|
|
|
if ((res = zoran_check_jpg_settings(zr, &settings)))
|
|
goto sjpegc_unlock_and_return;
|
|
if (!fh->jpg_buffers.allocated)
|
|
fh->jpg_buffers.buffer_size =
|
|
zoran_v4l2_calc_bufsize(&fh->jpg_settings);
|
|
fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
|
|
sjpegc_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_QUERYSTD: /* why is this useful? */
|
|
{
|
|
v4l2_std_id *std = arg;
|
|
|
|
dprintk(3,
|
|
KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
|
|
ZR_DEVNAME(zr), (unsigned long long)*std);
|
|
|
|
if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
|
|
*std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
|
|
zr->card.norms == 3)) {
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
|
|
case VIDIOC_TRY_FMT:
|
|
{
|
|
struct v4l2_format *fmt = arg;
|
|
int res = 0;
|
|
|
|
dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
|
|
ZR_DEVNAME(zr), fmt->type);
|
|
|
|
switch (fmt->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
|
|
fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
|
|
if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
|
|
fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
|
|
if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
|
|
fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
|
|
if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
|
|
fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
break;
|
|
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (fmt->fmt.pix.bytesperline > 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
|
|
settings = fh->jpg_settings;
|
|
|
|
/* we actually need to set 'real' parameters now */
|
|
if ((fmt->fmt.pix.height * 2) >
|
|
BUZ_MAX_HEIGHT)
|
|
settings.TmpDcm = 1;
|
|
else
|
|
settings.TmpDcm = 2;
|
|
settings.decimation = 0;
|
|
if (fmt->fmt.pix.height <=
|
|
fh->jpg_settings.img_height / 2)
|
|
settings.VerDcm = 2;
|
|
else
|
|
settings.VerDcm = 1;
|
|
if (fmt->fmt.pix.width <=
|
|
fh->jpg_settings.img_width / 4)
|
|
settings.HorDcm = 4;
|
|
else if (fmt->fmt.pix.width <=
|
|
fh->jpg_settings.img_width / 2)
|
|
settings.HorDcm = 2;
|
|
else
|
|
settings.HorDcm = 1;
|
|
if (settings.TmpDcm == 1)
|
|
settings.field_per_buff = 2;
|
|
else
|
|
settings.field_per_buff = 1;
|
|
|
|
/* check */
|
|
if ((res =
|
|
zoran_check_jpg_settings(zr,
|
|
&settings)))
|
|
goto tryfmt_unlock_and_return;
|
|
|
|
/* tell the user what we actually did */
|
|
fmt->fmt.pix.width =
|
|
settings.img_width / settings.HorDcm;
|
|
fmt->fmt.pix.height =
|
|
settings.img_height * 2 /
|
|
(settings.TmpDcm * settings.VerDcm);
|
|
if (settings.TmpDcm == 1)
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_SEQ_TB :
|
|
V4L2_FIELD_SEQ_BT);
|
|
else
|
|
fmt->fmt.pix.field =
|
|
(fh->jpg_settings.
|
|
odd_even ? V4L2_FIELD_TOP :
|
|
V4L2_FIELD_BOTTOM);
|
|
|
|
fmt->fmt.pix.sizeimage =
|
|
zoran_v4l2_calc_bufsize(&settings);
|
|
} else if (fmt->type ==
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
int i;
|
|
|
|
for (i = 0; i < zoran_num_formats; i++)
|
|
if (zoran_formats[i].fourcc ==
|
|
fmt->fmt.pix.pixelformat)
|
|
break;
|
|
if (i == zoran_num_formats) {
|
|
res = -EINVAL;
|
|
goto tryfmt_unlock_and_return;
|
|
}
|
|
|
|
if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
|
|
fmt->fmt.pix.width = BUZ_MAX_WIDTH;
|
|
if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
|
|
fmt->fmt.pix.width = BUZ_MIN_WIDTH;
|
|
if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
|
|
fmt->fmt.pix.height =
|
|
BUZ_MAX_HEIGHT;
|
|
if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
|
|
fmt->fmt.pix.height =
|
|
BUZ_MIN_HEIGHT;
|
|
} else {
|
|
res = -EINVAL;
|
|
goto tryfmt_unlock_and_return;
|
|
}
|
|
tryfmt_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
|
|
ZR_DEVNAME(zr), cmd);
|
|
return -ENOIOCTLCMD;
|
|
break;
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
zoran_ioctl (struct inode *inode,
|
|
struct file *file,
|
|
unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
|
|
}
|
|
|
|
static unsigned int
|
|
zoran_poll (struct file *file,
|
|
poll_table *wait)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
wait_queue_head_t *queue = NULL;
|
|
int res = 0, frame;
|
|
|
|
/* we should check whether buffers are ready to be synced on
|
|
* (w/o waits - O_NONBLOCK) here
|
|
* if ready for read (sync), return POLLIN|POLLRDNORM,
|
|
* if ready for write (sync), return POLLOUT|POLLWRNORM,
|
|
* if error, return POLLERR,
|
|
* if no buffers queued or so, return POLLNVAL
|
|
*/
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_RAW:
|
|
if (fh->v4l_buffers.active == ZORAN_FREE ||
|
|
zr->v4l_pend_head == zr->v4l_pend_tail) {
|
|
dprintk(1,
|
|
"%s: zoran_poll() - no buffers queued\n",
|
|
ZR_DEVNAME(zr));
|
|
res = POLLNVAL;
|
|
goto poll_unlock_and_return;
|
|
}
|
|
queue = &zr->v4l_capq;
|
|
frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
|
|
poll_wait(file, queue, wait);
|
|
if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
|
|
res = POLLIN | POLLRDNORM;
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
if (fh->jpg_buffers.active == ZORAN_FREE ||
|
|
zr->jpg_que_head == zr->jpg_que_tail) {
|
|
dprintk(1,
|
|
"%s: zoran_poll() - no buffers queued\n",
|
|
ZR_DEVNAME(zr));
|
|
res = POLLNVAL;
|
|
goto poll_unlock_and_return;
|
|
}
|
|
queue = &zr->jpg_capq;
|
|
frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
|
|
poll_wait(file, queue, wait);
|
|
if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
|
|
if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
|
|
res = POLLIN | POLLRDNORM;
|
|
else
|
|
res = POLLOUT | POLLWRNORM;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
dprintk(1,
|
|
"%s: zoran_poll() - internal error, unknown map_mode=%d\n",
|
|
ZR_DEVNAME(zr), fh->map_mode);
|
|
res = POLLNVAL;
|
|
goto poll_unlock_and_return;
|
|
}
|
|
|
|
poll_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/*
|
|
* This maps the buffers to user space.
|
|
*
|
|
* Depending on the state of fh->map_mode
|
|
* the V4L or the MJPEG buffers are mapped
|
|
* per buffer or all together
|
|
*
|
|
* Note that we need to connect to some
|
|
* unmap signal event to unmap the de-allocate
|
|
* the buffer accordingly (zoran_vm_close())
|
|
*/
|
|
|
|
static void
|
|
zoran_vm_open (struct vm_area_struct *vma)
|
|
{
|
|
struct zoran_mapping *map = vma->vm_private_data;
|
|
|
|
map->count++;
|
|
}
|
|
|
|
static void
|
|
zoran_vm_close (struct vm_area_struct *vma)
|
|
{
|
|
struct zoran_mapping *map = vma->vm_private_data;
|
|
struct file *file = map->file;
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
int i;
|
|
|
|
map->count--;
|
|
if (map->count == 0) {
|
|
switch (fh->map_mode) {
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
|
|
dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
|
|
ZR_DEVNAME(zr));
|
|
|
|
for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
|
|
if (fh->jpg_buffers.buffer[i].map == map) {
|
|
fh->jpg_buffers.buffer[i].map =
|
|
NULL;
|
|
}
|
|
}
|
|
kfree(map);
|
|
|
|
for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
|
|
if (fh->jpg_buffers.buffer[i].map)
|
|
break;
|
|
if (i == fh->jpg_buffers.num_buffers) {
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->jpg_buffers.active != ZORAN_FREE) {
|
|
jpg_qbuf(file, -1, zr->codec_mode);
|
|
zr->jpg_buffers.allocated = 0;
|
|
zr->jpg_buffers.active =
|
|
fh->jpg_buffers.active =
|
|
ZORAN_FREE;
|
|
}
|
|
//jpg_fbuffer_free(file);
|
|
fh->jpg_buffers.allocated = 0;
|
|
fh->jpg_buffers.ready_to_be_freed = 1;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
}
|
|
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_RAW:
|
|
|
|
dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
|
|
ZR_DEVNAME(zr));
|
|
|
|
for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
|
|
if (fh->v4l_buffers.buffer[i].map == map) {
|
|
/* unqueue/unmap */
|
|
fh->v4l_buffers.buffer[i].map =
|
|
NULL;
|
|
}
|
|
}
|
|
kfree(map);
|
|
|
|
for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
|
|
if (fh->v4l_buffers.buffer[i].map)
|
|
break;
|
|
if (i == fh->v4l_buffers.num_buffers) {
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
if (fh->v4l_buffers.active != ZORAN_FREE) {
|
|
zr36057_set_memgrab(zr, 0);
|
|
zr->v4l_buffers.allocated = 0;
|
|
zr->v4l_buffers.active =
|
|
fh->v4l_buffers.active =
|
|
ZORAN_FREE;
|
|
}
|
|
//v4l_fbuffer_free(file);
|
|
fh->v4l_buffers.allocated = 0;
|
|
fh->v4l_buffers.ready_to_be_freed = 1;
|
|
|
|
mutex_unlock(&zr->resource_lock);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_ERR
|
|
"%s: munmap() - internal error - unknown map mode %d\n",
|
|
ZR_DEVNAME(zr), fh->map_mode);
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct vm_operations_struct zoran_vm_ops = {
|
|
.open = zoran_vm_open,
|
|
.close = zoran_vm_close,
|
|
};
|
|
|
|
static int
|
|
zoran_mmap (struct file *file,
|
|
struct vm_area_struct *vma)
|
|
{
|
|
struct zoran_fh *fh = file->private_data;
|
|
struct zoran *zr = fh->zr;
|
|
unsigned long size = (vma->vm_end - vma->vm_start);
|
|
unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
|
|
int i, j;
|
|
unsigned long page, start = vma->vm_start, todo, pos, fraglen;
|
|
int first, last;
|
|
struct zoran_mapping *map;
|
|
int res = 0;
|
|
|
|
dprintk(3,
|
|
KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
|
|
ZR_DEVNAME(zr),
|
|
fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
|
|
vma->vm_start, vma->vm_end, size);
|
|
|
|
if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
|
|
!(vma->vm_flags & VM_WRITE)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
|
|
ZR_DEVNAME(zr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fh->map_mode) {
|
|
|
|
case ZORAN_MAP_MODE_JPG_REC:
|
|
case ZORAN_MAP_MODE_JPG_PLAY:
|
|
|
|
/* lock */
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
/* Map the MJPEG buffers */
|
|
if (!fh->jpg_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -ENOMEM;
|
|
goto jpg_mmap_unlock_and_return;
|
|
}
|
|
|
|
first = offset / fh->jpg_buffers.buffer_size;
|
|
last = first - 1 + size / fh->jpg_buffers.buffer_size;
|
|
if (offset % fh->jpg_buffers.buffer_size != 0 ||
|
|
size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
|
|
last < 0 || first >= fh->jpg_buffers.num_buffers ||
|
|
last >= fh->jpg_buffers.num_buffers) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
|
|
ZR_DEVNAME(zr), offset, size,
|
|
fh->jpg_buffers.buffer_size,
|
|
fh->jpg_buffers.num_buffers);
|
|
res = -EINVAL;
|
|
goto jpg_mmap_unlock_and_return;
|
|
}
|
|
for (i = first; i <= last; i++) {
|
|
if (fh->jpg_buffers.buffer[i].map) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: mmap(MJPEG) - buffer %d already mapped\n",
|
|
ZR_DEVNAME(zr), i);
|
|
res = -EBUSY;
|
|
goto jpg_mmap_unlock_and_return;
|
|
}
|
|
}
|
|
|
|
/* map these buffers (v4l_buffers[i]) */
|
|
map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
|
|
if (!map) {
|
|
res = -ENOMEM;
|
|
goto jpg_mmap_unlock_and_return;
|
|
}
|
|
map->file = file;
|
|
map->count = 1;
|
|
|
|
vma->vm_ops = &zoran_vm_ops;
|
|
vma->vm_flags |= VM_DONTEXPAND;
|
|
vma->vm_private_data = map;
|
|
|
|
for (i = first; i <= last; i++) {
|
|
for (j = 0;
|
|
j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
|
|
j++) {
|
|
fraglen =
|
|
(le32_to_cpu(fh->jpg_buffers.buffer[i].
|
|
frag_tab[2 * j + 1]) & ~1) << 1;
|
|
todo = size;
|
|
if (todo > fraglen)
|
|
todo = fraglen;
|
|
pos =
|
|
le32_to_cpu((unsigned long) fh->jpg_buffers.
|
|
buffer[i].frag_tab[2 * j]);
|
|
/* should just be pos on i386 */
|
|
page = virt_to_phys(bus_to_virt(pos))
|
|
>> PAGE_SHIFT;
|
|
if (remap_pfn_range(vma, start, page,
|
|
todo, PAGE_SHARED)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EAGAIN;
|
|
goto jpg_mmap_unlock_and_return;
|
|
}
|
|
size -= todo;
|
|
start += todo;
|
|
if (size == 0)
|
|
break;
|
|
if (le32_to_cpu(fh->jpg_buffers.buffer[i].
|
|
frag_tab[2 * j + 1]) & 1)
|
|
break; /* was last fragment */
|
|
}
|
|
fh->jpg_buffers.buffer[i].map = map;
|
|
if (size == 0)
|
|
break;
|
|
|
|
}
|
|
jpg_mmap_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
break;
|
|
|
|
case ZORAN_MAP_MODE_RAW:
|
|
|
|
mutex_lock(&zr->resource_lock);
|
|
|
|
/* Map the V4L buffers */
|
|
if (!fh->v4l_buffers.allocated) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_mmap(V4L) - buffers not yet allocated\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -ENOMEM;
|
|
goto v4l_mmap_unlock_and_return;
|
|
}
|
|
|
|
first = offset / fh->v4l_buffers.buffer_size;
|
|
last = first - 1 + size / fh->v4l_buffers.buffer_size;
|
|
if (offset % fh->v4l_buffers.buffer_size != 0 ||
|
|
size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
|
|
last < 0 || first >= fh->v4l_buffers.num_buffers ||
|
|
last >= fh->v4l_buffers.buffer_size) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
|
|
ZR_DEVNAME(zr), offset, size,
|
|
fh->v4l_buffers.buffer_size,
|
|
fh->v4l_buffers.num_buffers);
|
|
res = -EINVAL;
|
|
goto v4l_mmap_unlock_and_return;
|
|
}
|
|
for (i = first; i <= last; i++) {
|
|
if (fh->v4l_buffers.buffer[i].map) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: mmap(V4L) - buffer %d already mapped\n",
|
|
ZR_DEVNAME(zr), i);
|
|
res = -EBUSY;
|
|
goto v4l_mmap_unlock_and_return;
|
|
}
|
|
}
|
|
|
|
/* map these buffers (v4l_buffers[i]) */
|
|
map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
|
|
if (!map) {
|
|
res = -ENOMEM;
|
|
goto v4l_mmap_unlock_and_return;
|
|
}
|
|
map->file = file;
|
|
map->count = 1;
|
|
|
|
vma->vm_ops = &zoran_vm_ops;
|
|
vma->vm_flags |= VM_DONTEXPAND;
|
|
vma->vm_private_data = map;
|
|
|
|
for (i = first; i <= last; i++) {
|
|
todo = size;
|
|
if (todo > fh->v4l_buffers.buffer_size)
|
|
todo = fh->v4l_buffers.buffer_size;
|
|
page = fh->v4l_buffers.buffer[i].fbuffer_phys;
|
|
if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
|
|
todo, PAGE_SHARED)) {
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
|
|
ZR_DEVNAME(zr));
|
|
res = -EAGAIN;
|
|
goto v4l_mmap_unlock_and_return;
|
|
}
|
|
size -= todo;
|
|
start += todo;
|
|
fh->v4l_buffers.buffer[i].map = map;
|
|
if (size == 0)
|
|
break;
|
|
}
|
|
v4l_mmap_unlock_and_return:
|
|
mutex_unlock(&zr->resource_lock);
|
|
|
|
break;
|
|
|
|
default:
|
|
dprintk(1,
|
|
KERN_ERR
|
|
"%s: zoran_mmap() - internal error - unknown map mode %d\n",
|
|
ZR_DEVNAME(zr), fh->map_mode);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct file_operations zoran_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = zoran_open,
|
|
.release = zoran_close,
|
|
.ioctl = zoran_ioctl,
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
.llseek = no_llseek,
|
|
.read = zoran_read,
|
|
.write = zoran_write,
|
|
.mmap = zoran_mmap,
|
|
.poll = zoran_poll,
|
|
};
|
|
|
|
struct video_device zoran_template __devinitdata = {
|
|
.name = ZORAN_NAME,
|
|
.type = ZORAN_VID_TYPE,
|
|
#ifdef CONFIG_VIDEO_V4L2
|
|
.type2 = ZORAN_V4L2_VID_FLAGS,
|
|
#endif
|
|
.hardware = ZORAN_HARDWARE,
|
|
.fops = &zoran_fops,
|
|
.release = &zoran_vdev_release,
|
|
.minor = -1
|
|
};
|
|
|