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linux/drivers/media/video/zoran_driver.c
Arjan van de Ven fa027c2a0a [PATCH] mark struct file_operations const 4 
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@sdl.org: dvb fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:45 -08:00

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/*
* Zoran zr36057/zr36067 PCI controller driver, for the
* Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
* Media Labs LML33/LML33R10.
*
* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
*
* Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
*
* Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
*
* Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
*
* Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* Based on
*
* Miro DC10 driver
* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
*
* Iomega Buz driver version 1.0
* Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
*
* buz.0.0.3
* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
*
* bttv - Bt848 frame grabber driver
* Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
* & Marcus Metzler (mocm@thp.uni-koeln.de)
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/version.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
#include <linux/byteorder/generic.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/spinlock.h>
#define MAP_NR(x) virt_to_page(x)
#define ZORAN_HARDWARE VID_HARDWARE_ZR36067
#define ZORAN_VID_TYPE ( \
VID_TYPE_CAPTURE | \
VID_TYPE_OVERLAY | \
VID_TYPE_CLIPPING | \
VID_TYPE_FRAMERAM | \
VID_TYPE_SCALES | \
VID_TYPE_MJPEG_DECODER | \
VID_TYPE_MJPEG_ENCODER \
)
#include <linux/videodev.h>
#include <media/v4l2-common.h>
#include "videocodec.h"
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/proc_fs.h>
#include <linux/video_decoder.h>
#include <linux/video_encoder.h>
#include <linux/mutex.h>
#include "zoran.h"
#include "zoran_device.h"
#include "zoran_card.h"
#ifdef CONFIG_VIDEO_V4L2
/* we declare some card type definitions here, they mean
* the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
#define ZORAN_V4L2_VID_FLAGS ( \
V4L2_CAP_STREAMING |\
V4L2_CAP_VIDEO_CAPTURE |\
V4L2_CAP_VIDEO_OUTPUT |\
V4L2_CAP_VIDEO_OVERLAY \
)
#endif
#include <asm/byteorder.h>
const struct zoran_format zoran_formats[] = {
{
.name = "15-bit RGB",
.palette = VIDEO_PALETTE_RGB555,
#ifdef CONFIG_VIDEO_V4L2
#ifdef __LITTLE_ENDIAN
.fourcc = V4L2_PIX_FMT_RGB555,
#else
.fourcc = V4L2_PIX_FMT_RGB555X,
#endif
.colorspace = V4L2_COLORSPACE_SRGB,
#endif
.depth = 15,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
}, {
.name = "16-bit RGB",
.palette = VIDEO_PALETTE_RGB565,
#ifdef CONFIG_VIDEO_V4L2
#ifdef __LITTLE_ENDIAN
.fourcc = V4L2_PIX_FMT_RGB565,
#else
.fourcc = V4L2_PIX_FMT_RGB565X,
#endif
.colorspace = V4L2_COLORSPACE_SRGB,
#endif
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
}, {
.name = "24-bit RGB",
.palette = VIDEO_PALETTE_RGB24,
#ifdef CONFIG_VIDEO_V4L2
#ifdef __LITTLE_ENDIAN
.fourcc = V4L2_PIX_FMT_BGR24,
#else
.fourcc = V4L2_PIX_FMT_RGB24,
#endif
.colorspace = V4L2_COLORSPACE_SRGB,
#endif
.depth = 24,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
}, {
.name = "32-bit RGB",
.palette = VIDEO_PALETTE_RGB32,
#ifdef CONFIG_VIDEO_V4L2
#ifdef __LITTLE_ENDIAN
.fourcc = V4L2_PIX_FMT_BGR32,
#else
.fourcc = V4L2_PIX_FMT_RGB32,
#endif
.colorspace = V4L2_COLORSPACE_SRGB,
#endif
.depth = 32,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
}, {
.name = "4:2:2, packed, YUYV",
.palette = VIDEO_PALETTE_YUV422,
#ifdef CONFIG_VIDEO_V4L2
.fourcc = V4L2_PIX_FMT_YUYV,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
#endif
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
}, {
.name = "Hardware-encoded Motion-JPEG",
.palette = -1,
#ifdef CONFIG_VIDEO_V4L2
.fourcc = V4L2_PIX_FMT_MJPEG,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
#endif
.depth = 0,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_PLAYBACK |
ZORAN_FORMAT_COMPRESSED,
}
};
static const int zoran_num_formats =
(sizeof(zoran_formats) / sizeof(struct zoran_format));
// RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
#if !defined(CONFIG_BIGPHYS_AREA)
//#undef CONFIG_BIGPHYS_AREA
#define BUZ_USE_HIMEM
#endif
#if defined(CONFIG_BIGPHYS_AREA)
# include <linux/bigphysarea.h>
#endif
extern int *zr_debug;
#define dprintk(num, format, args...) \
do { \
if (*zr_debug >= num) \
printk(format, ##args); \
} while (0)
extern int v4l_nbufs;
extern int v4l_bufsize;
extern int jpg_nbufs;
extern int jpg_bufsize;
extern int pass_through;
static int lock_norm = 0; /* 1=Don't change TV standard (norm) */
module_param(lock_norm, int, 0);
MODULE_PARM_DESC(lock_norm, "Users can't change norm");
#ifdef CONFIG_VIDEO_V4L2
/* small helper function for calculating buffersizes for v4l2
* we calculate the nearest higher power-of-two, which
* will be the recommended buffersize */
static __u32
zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
{
__u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
__u32 num = (1024 * 512) / (div);
__u32 result = 2;
num--;
while (num) {
num >>= 1;
result <<= 1;
}
if (result > jpg_bufsize)
return jpg_bufsize;
if (result < 8192)
return 8192;
return result;
}
#endif
/* forward references */
static void v4l_fbuffer_free(struct file *file);
static void jpg_fbuffer_free(struct file *file);
/*
* Allocate the V4L grab buffers
*
* These have to be pysically contiguous.
* If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
* else we try to allocate them with bigphysarea_alloc_pages
* if the bigphysarea patch is present in the kernel,
* else we try to use high memory (if the user has bootet
* Linux with the necessary memory left over).
*/
#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
static unsigned long
get_high_mem (unsigned long size)
{
/*
* Check if there is usable memory at the end of Linux memory
* of at least size. Return the physical address of this memory,
* return 0 on failure.
*
* The idea is from Alexandro Rubini's book "Linux device drivers".
* The driver from him which is downloadable from O'Reilly's
* web site misses the "virt_to_phys(high_memory)" part
* (and therefore doesn't work at all - at least with 2.2.x kernels).
*
* It should be unnecessary to mention that THIS IS DANGEROUS,
* if more than one driver at a time has the idea to use this memory!!!!
*/
volatile unsigned char __iomem *mem;
unsigned char c;
unsigned long hi_mem_ph;
unsigned long i;
/* Map the high memory to user space */
hi_mem_ph = virt_to_phys(high_memory);
mem = ioremap(hi_mem_ph, size);
if (!mem) {
dprintk(1,
KERN_ERR "%s: get_high_mem() - ioremap failed\n",
ZORAN_NAME);
return 0;
}
for (i = 0; i < size; i++) {
/* Check if it is memory */
c = i & 0xff;
writeb(c, mem + i);
if (readb(mem + i) != c)
break;
c = 255 - c;
writeb(c, mem + i);
if (readb(mem + i) != c)
break;
writeb(0, mem + i); /* zero out memory */
/* give the kernel air to breath */
if ((i & 0x3ffff) == 0x3ffff)
schedule();
}
iounmap(mem);
if (i != size) {
dprintk(1,
KERN_ERR
"%s: get_high_mem() - requested %lu, avail %lu\n",
ZORAN_NAME, size, i);
return 0;
}
return hi_mem_ph;
}
#endif
static int
v4l_fbuffer_alloc (struct file *file)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int i, off;
unsigned char *mem;
#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
unsigned long pmem = 0;
#endif
/* we might have old buffers lying around... */
if (fh->v4l_buffers.ready_to_be_freed) {
v4l_fbuffer_free(file);
}
for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
if (fh->v4l_buffers.buffer[i].fbuffer)
dprintk(2,
KERN_WARNING
"%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
ZR_DEVNAME(zr), i);
//udelay(20);
if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
/* Use kmalloc */
mem =
(unsigned char *) kmalloc(fh->v4l_buffers.
buffer_size,
GFP_KERNEL);
if (mem == 0) {
dprintk(1,
KERN_ERR
"%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
ZR_DEVNAME(zr), i);
v4l_fbuffer_free(file);
return -ENOBUFS;
}
fh->v4l_buffers.buffer[i].fbuffer = mem;
fh->v4l_buffers.buffer[i].fbuffer_phys =
virt_to_phys(mem);
fh->v4l_buffers.buffer[i].fbuffer_bus =
virt_to_bus(mem);
for (off = 0; off < fh->v4l_buffers.buffer_size;
off += PAGE_SIZE)
SetPageReserved(MAP_NR(mem + off));
dprintk(4,
KERN_INFO
"%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
ZR_DEVNAME(zr), i, (unsigned long) mem,
virt_to_bus(mem));
} else {
#if defined(CONFIG_BIGPHYS_AREA)
/* Use bigphysarea_alloc_pages */
int n =
(fh->v4l_buffers.buffer_size + PAGE_SIZE -
1) / PAGE_SIZE;
mem =
(unsigned char *) bigphysarea_alloc_pages(n, 0,
GFP_KERNEL);
if (mem == 0) {
dprintk(1,
KERN_ERR
"%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
ZR_DEVNAME(zr), i);
v4l_fbuffer_free(file);
return -ENOBUFS;
}
fh->v4l_buffers.buffer[i].fbuffer = mem;
fh->v4l_buffers.buffer[i].fbuffer_phys =
virt_to_phys(mem);
fh->v4l_buffers.buffer[i].fbuffer_bus =
virt_to_bus(mem);
dprintk(4,
KERN_INFO
"%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
ZR_DEVNAME(zr), i, (unsigned) mem,
(unsigned) virt_to_bus(mem));
/* Zero out the allocated memory */
memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
fh->v4l_buffers.buffer_size);
#elif defined(BUZ_USE_HIMEM)
/* Use high memory which has been left at boot time */
/* Ok., Ok. this is an evil hack - we make
* the assumption that physical addresses are
* the same as bus addresses (true at least
* for Intel processors). The whole method of
* obtaining and using this memory is not very
* nice - but I hope it saves some poor users
* from kernel hacking, which might have even
* more evil results */
if (i == 0) {
int size =
fh->v4l_buffers.num_buffers *
fh->v4l_buffers.buffer_size;
pmem = get_high_mem(size);
if (pmem == 0) {
dprintk(1,
KERN_ERR
"%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
ZR_DEVNAME(zr), size >> 10);
return -ENOBUFS;
}
fh->v4l_buffers.buffer[0].fbuffer = NULL;
fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
dprintk(4,
KERN_INFO
"%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
ZR_DEVNAME(zr), size >> 10);
} else {
fh->v4l_buffers.buffer[i].fbuffer = NULL;
fh->v4l_buffers.buffer[i].fbuffer_phys =
pmem + i * fh->v4l_buffers.buffer_size;
fh->v4l_buffers.buffer[i].fbuffer_bus =
pmem + i * fh->v4l_buffers.buffer_size;
}
#else
/* No bigphysarea present, usage of high memory disabled,
* but user wants buffers of more than MAX_KMALLOC_MEM */
dprintk(1,
KERN_ERR
"%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
ZR_DEVNAME(zr));
dprintk(1,
KERN_ERR
"%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
fh->v4l_buffers.buffer_size >> 10);
return -ENOBUFS;
#endif
}
}
fh->v4l_buffers.allocated = 1;
return 0;
}
/* free the V4L grab buffers */
static void
v4l_fbuffer_free (struct file *file)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
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;
}
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 const 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
};
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