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kernel-ark/drivers/media/video/zoran_driver.c
Panagiotis Issaris 7408187d22 V4L/DVB (3344a): Conversions from kmalloc+memset to k(z|c)alloc 
Conversions from kmalloc+memset to k(z|c)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-01-11 19:40:56 -02:00

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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/config.h>
#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 "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 "zoran.h"
#include "zoran_device.h"
#include "zoran_card.h"
#ifdef HAVE_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 HAVE_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 HAVE_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 HAVE_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 HAVE_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 HAVE_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 HAVE_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 HAVE_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;
}
memset((void *) mem, 0, PAGE_SIZE);
fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
fh->jpg_buffers.buffer[i].frag_tab_bus =
virt_to_bus((void *) mem);
//if (alloc_contig) {
if (fh->jpg_buffers.need_contiguous) {
mem =
(unsigned long) kmalloc(fh->jpg_buffers.
buffer_size,
GFP_KERNEL);
if (mem == 0) {
dprintk(1,
KERN_ERR
"%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
ZR_DEVNAME(zr), i);
jpg_fbuffer_free(file);
return -ENOBUFS;
}
fh->jpg_buffers.buffer[i].frag_tab[0] =
cpu_to_le32(virt_to_bus((void *) mem));
fh->jpg_buffers.buffer[i].frag_tab[1] =
cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
for (off = 0; off < fh->jpg_buffers.buffer_size;
off += PAGE_SIZE)
SetPageReserved(MAP_NR(mem + off));
} else {
/* jpg_bufsize is allreay page aligned */
for (j = 0;
j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
j++) {
mem = get_zeroed_page(GFP_KERNEL);
if (mem == 0) {
dprintk(1,
KERN_ERR
"%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
ZR_DEVNAME(zr), i);
jpg_fbuffer_free(file);
return -ENOBUFS;
}
fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
cpu_to_le32(virt_to_bus((void *) mem));
fh->jpg_buffers.buffer[i].frag_tab[2 * j +
1] =
cpu_to_le32((PAGE_SIZE / 4) << 1);
SetPageReserved(MAP_NR(mem));
}
fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
}
}
dprintk(4,
KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
ZR_DEVNAME(zr),
(fh->jpg_buffers.num_buffers *
fh->jpg_buffers.buffer_size) >> 10);
fh->jpg_buffers.allocated = 1;
return 0;
}
/* free the MJPEG grab buffers */
static void
jpg_fbuffer_free (struct file *file)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int i, j, off;
unsigned char *mem;
dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
if (!fh->jpg_buffers.buffer[i].frag_tab)
continue;
//if (alloc_contig) {
if (fh->jpg_buffers.need_contiguous) {
if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
mem = (unsigned char *) bus_to_virt(le32_to_cpu(
fh->jpg_buffers.buffer[i].frag_tab[0]));
for (off = 0;
off < fh->jpg_buffers.buffer_size;
off += PAGE_SIZE)
ClearPageReserved(MAP_NR
(mem + off));
kfree(mem);
fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
}
} else {
for (j = 0;
j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
j++) {
if (!fh->jpg_buffers.buffer[i].
frag_tab[2 * j])
break;
ClearPageReserved(MAP_NR
(bus_to_virt
(le32_to_cpu
(fh->jpg_buffers.
buffer[i].frag_tab[2 *
j]))));
free_page((unsigned long)
bus_to_virt
(le32_to_cpu
(fh->jpg_buffers.
buffer[i].
frag_tab[2 * j])));
fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
0;
fh->jpg_buffers.buffer[i].frag_tab[2 * j +
1] = 0;
}
}
free_page((unsigned long) fh->jpg_buffers.buffer[i].
frag_tab);
fh->jpg_buffers.buffer[i].frag_tab = NULL;
}
fh->jpg_buffers.allocated = 0;
fh->jpg_buffers.ready_to_be_freed = 0;
}
/*
* V4L Buffer grabbing
*/
static int
zoran_v4l_set_format (struct file *file,
int width,
int height,
const struct zoran_format *format)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int bpp;
/* Check size and format of the grab wanted */
if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
dprintk(1,
KERN_ERR
"%s: v4l_set_format() - wrong frame size (%dx%d)\n",
ZR_DEVNAME(zr), width, height);
return -EINVAL;
}
bpp = (format->depth + 7) / 8;
/* Check against available buffer size */
if (height * width * bpp > fh->v4l_buffers.buffer_size) {
dprintk(1,
KERN_ERR
"%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
return -EINVAL;
}
/* The video front end needs 4-byte alinged line sizes */
if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
dprintk(1,
KERN_ERR
"%s: v4l_set_format() - wrong frame alingment\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
fh->v4l_settings.width = width;
fh->v4l_settings.height = height;
fh->v4l_settings.format = format;
fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
return 0;
}
static int
zoran_v4l_queue_frame (struct file *file,
int num)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
unsigned long flags;
int res = 0;
if (!fh->v4l_buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: v4l_queue_frame() - buffers not yet allocated\n",
ZR_DEVNAME(zr));
res = -ENOMEM;
}
/* No grabbing outside the buffer range! */
if (num >= fh->v4l_buffers.num_buffers || num < 0) {
dprintk(1,
KERN_ERR
"%s: v4l_queue_frame() - buffer %d is out of range\n",
ZR_DEVNAME(zr), num);
res = -EINVAL;
}
spin_lock_irqsave(&zr->spinlock, flags);
if (fh->v4l_buffers.active == ZORAN_FREE) {
if (zr->v4l_buffers.active == ZORAN_FREE) {
zr->v4l_buffers = fh->v4l_buffers;
fh->v4l_buffers.active = ZORAN_ACTIVE;
} else {
dprintk(1,
KERN_ERR
"%s: v4l_queue_frame() - another session is already capturing\n",
ZR_DEVNAME(zr));
res = -EBUSY;
}
}
/* make sure a grab isn't going on currently with this buffer */
if (!res) {
switch (zr->v4l_buffers.buffer[num].state) {
default:
case BUZ_STATE_PEND:
if (zr->v4l_buffers.active == ZORAN_FREE) {
fh->v4l_buffers.active = ZORAN_FREE;
zr->v4l_buffers.allocated = 0;
}
res = -EBUSY; /* what are you doing? */
break;
case BUZ_STATE_DONE:
dprintk(2,
KERN_WARNING
"%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
ZR_DEVNAME(zr), num);
case BUZ_STATE_USER:
/* since there is at least one unused buffer there's room for at least
* one more pend[] entry */
zr->v4l_pend[zr->v4l_pend_head++ &
V4L_MASK_FRAME] = num;
zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
zr->v4l_buffers.buffer[num].bs.length =
fh->v4l_settings.bytesperline *
zr->v4l_settings.height;
fh->v4l_buffers.buffer[num] =
zr->v4l_buffers.buffer[num];
break;
}
}
spin_unlock_irqrestore(&zr->spinlock, flags);
if (!res && zr->v4l_buffers.active == ZORAN_FREE)
zr->v4l_buffers.active = fh->v4l_buffers.active;
return res;
}
static int
v4l_grab (struct file *file,
struct video_mmap *mp)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int res = 0, i;
for (i = 0; i < zoran_num_formats; i++) {
if (zoran_formats[i].palette == mp->format &&
zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
!(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
break;
}
if (i == zoran_num_formats || zoran_formats[i].depth == 0) {
dprintk(1,
KERN_ERR
"%s: v4l_grab() - wrong bytes-per-pixel format\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
/*
* To minimize the time spent in the IRQ routine, we avoid setting up
* the video front end there.
* If this grab has different parameters from a running streaming capture
* we stop the streaming capture and start it over again.
*/
if (zr->v4l_memgrab_active &&
(zr->v4l_settings.width != mp->width ||
zr->v4l_settings.height != mp->height ||
zr->v4l_settings.format->palette != mp->format)) {
res = wait_grab_pending(zr);
if (res)
return res;
}
if ((res = zoran_v4l_set_format(file,
mp->width,
mp->height,
&zoran_formats[i])))
return res;
zr->v4l_settings = fh->v4l_settings;
/* queue the frame in the pending queue */
if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
fh->v4l_buffers.active = ZORAN_FREE;
return res;
}
/* put the 36057 into frame grabbing mode */
if (!res && !zr->v4l_memgrab_active)
zr36057_set_memgrab(zr, 1);
//dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
return res;
}
/*
* Sync on a V4L buffer
*/
static int
v4l_sync (struct file *file,
int frame)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
unsigned long flags;
if (fh->v4l_buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: v4l_sync() - no grab active for this session\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
/* check passed-in frame number */
if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
dprintk(1,
KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
ZR_DEVNAME(zr), frame);
return -EINVAL;
}
/* Check if is buffer was queued at all */
if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
dprintk(1,
KERN_ERR
"%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
ZR_DEVNAME(zr));
return -EPROTO;
}
/* wait on this buffer to get ready */
if (!wait_event_interruptible_timeout(zr->v4l_capq,
(zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
10*HZ))
return -ETIME;
if (signal_pending(current))
return -ERESTARTSYS;
/* buffer should now be in BUZ_STATE_DONE */
if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
dprintk(2,
KERN_ERR "%s: v4l_sync() - internal state error\n",
ZR_DEVNAME(zr));
zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
spin_lock_irqsave(&zr->spinlock, flags);
/* Check if streaming capture has finished */
if (zr->v4l_pend_tail == zr->v4l_pend_head) {
zr36057_set_memgrab(zr, 0);
if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
fh->v4l_buffers.active = zr->v4l_buffers.active =
ZORAN_FREE;
zr->v4l_buffers.allocated = 0;
}
}
spin_unlock_irqrestore(&zr->spinlock, flags);
return 0;
}
/*
* Queue a MJPEG buffer for capture/playback
*/
static int
zoran_jpg_queue_frame (struct file *file,
int num,
enum zoran_codec_mode mode)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
unsigned long flags;
int res = 0;
/* Check if buffers are allocated */
if (!fh->jpg_buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: jpg_queue_frame() - buffers not yet allocated\n",
ZR_DEVNAME(zr));
return -ENOMEM;
}
/* No grabbing outside the buffer range! */
if (num >= fh->jpg_buffers.num_buffers || num < 0) {
dprintk(1,
KERN_ERR
"%s: jpg_queue_frame() - buffer %d out of range\n",
ZR_DEVNAME(zr), num);
return -EINVAL;
}
/* what is the codec mode right now? */
if (zr->codec_mode == BUZ_MODE_IDLE) {
zr->jpg_settings = fh->jpg_settings;
} else if (zr->codec_mode != mode) {
/* wrong codec mode active - invalid */
dprintk(1,
KERN_ERR
"%s: jpg_queue_frame() - codec in wrong mode\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
if (fh->jpg_buffers.active == ZORAN_FREE) {
if (zr->jpg_buffers.active == ZORAN_FREE) {
zr->jpg_buffers = fh->jpg_buffers;
fh->jpg_buffers.active = ZORAN_ACTIVE;
} else {
dprintk(1,
KERN_ERR
"%s: jpg_queue_frame() - another session is already capturing\n",
ZR_DEVNAME(zr));
res = -EBUSY;
}
}
if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
/* Ok load up the jpeg codec */
zr36057_enable_jpg(zr, mode);
}
spin_lock_irqsave(&zr->spinlock, flags);
if (!res) {
switch (zr->jpg_buffers.buffer[num].state) {
case BUZ_STATE_DONE:
dprintk(2,
KERN_WARNING
"%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
ZR_DEVNAME(zr));
case BUZ_STATE_USER:
/* since there is at least one unused buffer there's room for at
*least one more pend[] entry */
zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
num;
zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
fh->jpg_buffers.buffer[num] =
zr->jpg_buffers.buffer[num];
zoran_feed_stat_com(zr);
break;
default:
case BUZ_STATE_DMA:
case BUZ_STATE_PEND:
if (zr->jpg_buffers.active == ZORAN_FREE) {
fh->jpg_buffers.active = ZORAN_FREE;
zr->jpg_buffers.allocated = 0;
}
res = -EBUSY; /* what are you doing? */
break;
}
}
spin_unlock_irqrestore(&zr->spinlock, flags);
if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
zr->jpg_buffers.active = fh->jpg_buffers.active;
}
return res;
}
static int
jpg_qbuf (struct file *file,
int frame,
enum zoran_codec_mode mode)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int res = 0;
/* Does the user want to stop streaming? */
if (frame < 0) {
if (zr->codec_mode == mode) {
if (fh->jpg_buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: jpg_qbuf(-1) - session not active\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
fh->jpg_buffers.active = zr->jpg_buffers.active =
ZORAN_FREE;
zr->jpg_buffers.allocated = 0;
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
return 0;
} else {
dprintk(1,
KERN_ERR
"%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
}
if ((res = zoran_jpg_queue_frame(file, frame, mode)))
return res;
/* Start the jpeg codec when the first frame is queued */
if (!res && zr->jpg_que_head == 1)
jpeg_start(zr);
return res;
}
/*
* Sync on a MJPEG buffer
*/
static int
jpg_sync (struct file *file,
struct zoran_sync *bs)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
unsigned long flags;
int frame;
if (fh->jpg_buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: jpg_sync() - capture is not currently active\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
dprintk(1,
KERN_ERR
"%s: jpg_sync() - codec not in streaming mode\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
if (!wait_event_interruptible_timeout(zr->jpg_capq,
(zr->jpg_que_tail != zr->jpg_dma_tail ||
zr->jpg_dma_tail == zr->jpg_dma_head),
10*HZ)) {
int isr;
btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
udelay(1);
zr->codec->control(zr->codec, CODEC_G_STATUS,
sizeof(isr), &isr);
dprintk(1,
KERN_ERR
"%s: jpg_sync() - timeout: codec isr=0x%02x\n",
ZR_DEVNAME(zr), isr);
return -ETIME;
}
if (signal_pending(current))
return -ERESTARTSYS;
spin_lock_irqsave(&zr->spinlock, flags);
if (zr->jpg_dma_tail != zr->jpg_dma_head)
frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
else
frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
/* buffer should now be in BUZ_STATE_DONE */
if (*zr_debug > 0)
if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
dprintk(2,
KERN_ERR
"%s: jpg_sync() - internal state error\n",
ZR_DEVNAME(zr));
*bs = zr->jpg_buffers.buffer[frame].bs;
bs->frame = frame;
zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
spin_unlock_irqrestore(&zr->spinlock, flags);
return 0;
}
static void
zoran_open_init_session (struct file *file)
{
int i;
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
/* Per default, map the V4L Buffers */
fh->map_mode = ZORAN_MAP_MODE_RAW;
/* take over the card's current settings */
fh->overlay_settings = zr->overlay_settings;
fh->overlay_settings.is_set = 0;
fh->overlay_settings.format = zr->overlay_settings.format;
fh->overlay_active = ZORAN_FREE;
/* v4l settings */
fh->v4l_settings = zr->v4l_settings;
/* v4l_buffers */
memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
for (i = 0; i < VIDEO_MAX_FRAME; i++) {
fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
fh->v4l_buffers.buffer[i].bs.frame = i;
}
fh->v4l_buffers.allocated = 0;
fh->v4l_buffers.ready_to_be_freed = 0;
fh->v4l_buffers.active = ZORAN_FREE;
fh->v4l_buffers.buffer_size = v4l_bufsize;
fh->v4l_buffers.num_buffers = v4l_nbufs;
/* jpg settings */
fh->jpg_settings = zr->jpg_settings;
/* jpg_buffers */
memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
for (i = 0; i < BUZ_MAX_FRAME; i++) {
fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
fh->jpg_buffers.buffer[i].bs.frame = i;
}
fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
fh->jpg_buffers.allocated = 0;
fh->jpg_buffers.ready_to_be_freed = 0;
fh->jpg_buffers.active = ZORAN_FREE;
fh->jpg_buffers.buffer_size = jpg_bufsize;
fh->jpg_buffers.num_buffers = jpg_nbufs;
}
static void
zoran_close_end_session (struct file *file)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
/* overlay */
if (fh->overlay_active != ZORAN_FREE) {
fh->overlay_active = zr->overlay_active = ZORAN_FREE;
zr->v4l_overlay_active = 0;
if (!zr->v4l_memgrab_active)
zr36057_overlay(zr, 0);
zr->overlay_mask = NULL;
}
/* v4l capture */
if (fh->v4l_buffers.active != ZORAN_FREE) {
zr36057_set_memgrab(zr, 0);
zr->v4l_buffers.allocated = 0;
zr->v4l_buffers.active = fh->v4l_buffers.active =
ZORAN_FREE;
}
/* v4l buffers */
if (fh->v4l_buffers.allocated ||
fh->v4l_buffers.ready_to_be_freed) {
v4l_fbuffer_free(file);
}
/* jpg capture */
if (fh->jpg_buffers.active != ZORAN_FREE) {
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
zr->jpg_buffers.allocated = 0;
zr->jpg_buffers.active = fh->jpg_buffers.active =
ZORAN_FREE;
}
/* jpg buffers */
if (fh->jpg_buffers.allocated ||
fh->jpg_buffers.ready_to_be_freed) {
jpg_fbuffer_free(file);
}
}
/*
* Open a zoran card. Right now the flags stuff is just playing
*/
static int
zoran_open (struct inode *inode,
struct file *file)
{
unsigned int minor = iminor(inode);
struct zoran *zr = NULL;
struct zoran_fh *fh;
int i, res, first_open = 0, have_module_locks = 0;
/* find the device */
for (i = 0; i < zoran_num; i++) {
if (zoran[i].video_dev->minor == minor) {
zr = &zoran[i];
break;
}
}
if (!zr) {
dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
res = -ENODEV;
goto open_unlock_and_return;
}
/* see fs/device.c - the kernel already locks during open(),
* so locking ourselves only causes deadlocks */
/*down(&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;
/*up(&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) {
/*up(&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) */
/*down(&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);
/*up(&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;
/* 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 HAVE_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 (!down_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);
up(&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));
vcap->type = ZORAN_VID_TYPE;
vcap->channels = zr->card.inputs;
vcap->audios = 0;
down(&zr->resource_lock);
vcap->maxwidth = BUZ_MAX_WIDTH;
vcap->maxheight = BUZ_MAX_HEIGHT;
vcap->minwidth = BUZ_MIN_WIDTH;
vcap->minheight = BUZ_MIN_HEIGHT;
up(&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;
down(&zr->resource_lock);
vchan->norm = zr->norm;
up(&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);
down(&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:
up(&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));
down(&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;
}
up(&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;
}
down(&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];
up(&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);
down(&zr->resource_lock);
res = setup_overlay(file, *on);
up(&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));
down(&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;
up(&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);
down(&zr->resource_lock);
res =
setup_window(file, vwin->x, vwin->y, vwin->width,
vwin->height, vwin->clips,
vwin->clipcount, NULL);
up(&zr->resource_lock);
return res;
}
break;
case VIDIOCGFBUF:
{
struct video_buffer *vbuf = arg;
dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
down(&zr->resource_lock);
*vbuf = zr->buffer;
up(&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;
}
down(&zr->resource_lock);
res =
setup_fbuffer(file, vbuf->base, &zoran_formats[i],
vbuf->width, vbuf->height,
vbuf->bytesperline);
up(&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);
down(&zr->resource_lock);
res = v4l_sync(file, *frame);
up(&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);
down(&zr->resource_lock);
res = v4l_grab(file, vmap);
up(&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;
}
down(&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:
up(&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;
down(&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;
up(&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;
down(&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:
up(&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;
down(&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:
up(&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);
down(&zr->resource_lock);
res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
up(&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);
down(&zr->resource_lock);
res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
up(&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));
down(&zr->resource_lock);
res = jpg_sync(file, bsync);
up(&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;
down(&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:
up(&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 HAVE_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));
strncpy(cap->driver, "zoran", sizeof(cap->driver));
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, 31);
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:
down(&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;
up(&zr->resource_lock);
break;
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
down(&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;
}
up(&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);
down(&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);
up(&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) {
down(&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:
up(&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;
}
down(&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:
up(&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));
down(&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;
up(&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;
}
down(&zr->resource_lock);
res =
setup_fbuffer(file, fb->base, &zoran_formats[i],
fb->fmt.width, fb->fmt.height,
fb->fmt.bytesperline);
up(&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);
down(&zr->resource_lock);
res = setup_overlay(file, *on);
up(&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;
}
down(&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:
up(&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;
down(&zr->resource_lock);
res = zoran_v4l2_buffer_status(file, buf, buf->index);
up(&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);
down(&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:
up(&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);
down(&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:
up(&zr->resource_lock);
return res;
}
break;
case VIDIOC_STREAMON:
{
int res = 0;
dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
down(&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:
up(&zr->resource_lock);
return res;
}
break;
case VIDIOC_STREAMOFF:
{
int i, res = 0;
dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
down(&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:
up(&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", 31);
break;
case V4L2_CID_CONTRAST:
strncpy(ctrl->name, "Contrast", 31);
break;
case V4L2_CID_SATURATION:
strncpy(ctrl->name, "Saturation", 31);
break;
case V4L2_CID_HUE:
strncpy(ctrl->name, "Hue", 31);
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;
down(&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;
}
up(&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;
}
down(&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);
up(&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", 31);
return 0;
} else
return -EINVAL;
}
switch (std->index) {
case 0:
std->id = V4L2_STD_PAL;
strncpy(std->name, "PAL", 31);
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", 31);
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", 31);
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));
down(&zr->resource_lock);
norm = zr->norm;
up(&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;
}
down(&zr->resource_lock);
if ((res = zoran_set_norm(zr, norm)))
goto sstd_unlock_and_return;
res = wait_grab_pending(zr);
sstd_unlock_and_return:
up(&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 */
down(&zr->resource_lock);
decoder_command(zr, DECODER_GET_STATUS, &status);
up(&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));
down(&zr->resource_lock);
*input = zr->input;
up(&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);
down(&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:
up(&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", 31);
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;
down(&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:
up(&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;
down(&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:
up(&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);
down(&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:
up(&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));
down(&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;
up(&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;
down(&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:
up(&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:
down(&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;
up(&zr->resource_lock);
break;
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
if (fmt->fmt.pix.bytesperline > 0)
return -EINVAL;
down(&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:
up(&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
*/
down(&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:
up(&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) {
down(&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;
up(&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) {
down(&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;
up(&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 */
down(&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:
up(&zr->resource_lock);
break;
case ZORAN_MAP_MODE_RAW:
down(&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:
up(&zr->resource_lock);
break;
default:
dprintk(1,
KERN_ERR
"%s: zoran_mmap() - internal error - unknown map mode %d\n",
ZR_DEVNAME(zr), fh->map_mode);
break;
}
return 0;
}
static struct file_operations zoran_fops = {
.owner = THIS_MODULE,
.open = zoran_open,
.release = zoran_close,
.ioctl = zoran_ioctl,
.compat_ioctl = v4l_compat_ioctl32,
.llseek = no_llseek,
.read = zoran_read,
.write = zoran_write,
.mmap = zoran_mmap,
.poll = zoran_poll,
};
struct video_device zoran_template __devinitdata = {
.name = ZORAN_NAME,
.type = ZORAN_VID_TYPE,
#ifdef HAVE_V4L2
.type2 = ZORAN_V4L2_VID_FLAGS,
#endif
.hardware = ZORAN_HARDWARE,
.fops = &zoran_fops,
.release = &zoran_vdev_release,
.minor = -1
};
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