leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
bcb63314e2
linux/drivers/media/pci/zoran/zoran_driver.c
Sakari Ailus bcb63314e2 [media] media: Drop FSF's postal address from the source code files 
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.

The patch has been created with the following command without manual edits:

git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
	drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
	&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2017-01-27 11:38:09 -02:00

2847 lines
73 KiB
C
Raw Blame History

/*
* 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.
*/
#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/interrupt.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/spinlock.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
#include "videocodec.h"
#include <asm/byteorder.h>
#include <asm/io.h>
#include <linux/uaccess.h>
#include <linux/proc_fs.h>
#include <linux/mutex.h>
#include "zoran.h"
#include "zoran_device.h"
#include "zoran_card.h"
const struct zoran_format zoran_formats[] = {
{
.name = "15-bit RGB LE",
.fourcc = V4L2_PIX_FMT_RGB555,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 15,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
ZR36057_VFESPFR_LittleEndian,
}, {
.name = "15-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB555X,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 15,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
}, {
.name = "16-bit RGB LE",
.fourcc = V4L2_PIX_FMT_RGB565,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
ZR36057_VFESPFR_LittleEndian,
}, {
.name = "16-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB565X,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
}, {
.name = "24-bit RGB",
.fourcc = V4L2_PIX_FMT_BGR24,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 24,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
}, {
.name = "32-bit RGB LE",
.fourcc = V4L2_PIX_FMT_BGR32,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 32,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
}, {
.name = "32-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB32,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 32,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_RGB888,
}, {
.name = "4:2:2, packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_YUV422,
}, {
.name = "4:2:2, packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_OVERLAY,
.vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
}, {
.name = "Hardware-encoded Motion-JPEG",
.fourcc = V4L2_PIX_FMT_MJPEG,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 0,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_PLAYBACK |
ZORAN_FORMAT_COMPRESSED,
}
};
#define NUM_FORMATS ARRAY_SIZE(zoran_formats)
/* 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;
}
/* forward references */
static void v4l_fbuffer_free(struct zoran_fh *fh);
static void jpg_fbuffer_free(struct zoran_fh *fh);
/* Set mapping mode */
static void map_mode_raw(struct zoran_fh *fh)
{
fh->map_mode = ZORAN_MAP_MODE_RAW;
fh->buffers.buffer_size = v4l_bufsize;
fh->buffers.num_buffers = v4l_nbufs;
}
static void map_mode_jpg(struct zoran_fh *fh, int play)
{
fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
fh->buffers.buffer_size = jpg_bufsize;
fh->buffers.num_buffers = jpg_nbufs;
}
static inline const char *mode_name(enum zoran_map_mode mode)
{
return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
}
/*
* Allocate the V4L grab buffers
*
* These have to be pysically contiguous.
*/
static int v4l_fbuffer_alloc(struct zoran_fh *fh)
{
struct zoran *zr = fh->zr;
int i, off;
unsigned char *mem;
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (fh->buffers.buffer[i].v4l.fbuffer)
dprintk(2,
KERN_WARNING
"%s: %s - buffer %d already allocated!?\n",
ZR_DEVNAME(zr), __func__, i);
//udelay(20);
mem = kmalloc(fh->buffers.buffer_size,
GFP_KERNEL | __GFP_NOWARN);
if (!mem) {
dprintk(1,
KERN_ERR
"%s: %s - kmalloc for V4L buf %d failed\n",
ZR_DEVNAME(zr), __func__, i);
v4l_fbuffer_free(fh);
return -ENOBUFS;
}
fh->buffers.buffer[i].v4l.fbuffer = mem;
fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
for (off = 0; off < fh->buffers.buffer_size;
off += PAGE_SIZE)
SetPageReserved(virt_to_page(mem + off));
dprintk(4,
KERN_INFO
"%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
(unsigned long long)virt_to_bus(mem));
}
fh->buffers.allocated = 1;
return 0;
}
/* free the V4L grab buffers */
static void v4l_fbuffer_free(struct zoran_fh *fh)
{
struct zoran *zr = fh->zr;
int i, off;
unsigned char *mem;
dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (!fh->buffers.buffer[i].v4l.fbuffer)
continue;
mem = fh->buffers.buffer[i].v4l.fbuffer;
for (off = 0; off < fh->buffers.buffer_size;
off += PAGE_SIZE)
ClearPageReserved(virt_to_page(mem + off));
kfree(fh->buffers.buffer[i].v4l.fbuffer);
fh->buffers.buffer[i].v4l.fbuffer = NULL;
}
fh->buffers.allocated = 0;
}
/*
* Allocate the MJPEG grab buffers.
*
* 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)
*
* 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 zoran_fh *fh)
{
struct zoran *zr = fh->zr;
int i, j, off;
u8 *mem;
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (fh->buffers.buffer[i].jpg.frag_tab)
dprintk(2,
KERN_WARNING
"%s: %s - buffer %d already allocated!?\n",
ZR_DEVNAME(zr), __func__, i);
/* Allocate fragment table for this buffer */
mem = (void *)get_zeroed_page(GFP_KERNEL);
if (!mem) {
dprintk(1,
KERN_ERR
"%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
ZR_DEVNAME(zr), __func__, i);
jpg_fbuffer_free(fh);
return -ENOBUFS;
}
fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
if (fh->buffers.need_contiguous) {
mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
if (mem == NULL) {
dprintk(1,
KERN_ERR
"%s: %s - kmalloc failed for buffer %d\n",
ZR_DEVNAME(zr), __func__, i);
jpg_fbuffer_free(fh);
return -ENOBUFS;
}
fh->buffers.buffer[i].jpg.frag_tab[0] =
cpu_to_le32(virt_to_bus(mem));
fh->buffers.buffer[i].jpg.frag_tab[1] =
cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
SetPageReserved(virt_to_page(mem + off));
} else {
/* jpg_bufsize is already page aligned */
for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
mem = (void *)get_zeroed_page(GFP_KERNEL);
if (mem == NULL) {
dprintk(1,
KERN_ERR
"%s: %s - get_zeroed_page failed for buffer %d\n",
ZR_DEVNAME(zr), __func__, i);
jpg_fbuffer_free(fh);
return -ENOBUFS;
}
fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
cpu_to_le32(virt_to_bus(mem));
fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
cpu_to_le32((PAGE_SIZE >> 2) << 1);
SetPageReserved(virt_to_page(mem));
}
fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
}
}
dprintk(4,
KERN_DEBUG "%s: %s - %d KB allocated\n",
ZR_DEVNAME(zr), __func__,
(fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
fh->buffers.allocated = 1;
return 0;
}
/* free the MJPEG grab buffers */
static void jpg_fbuffer_free(struct zoran_fh *fh)
{
struct zoran *zr = fh->zr;
int i, j, off;
unsigned char *mem;
__le32 frag_tab;
struct zoran_buffer *buffer;
dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
for (i = 0, buffer = &fh->buffers.buffer[0];
i < fh->buffers.num_buffers; i++, buffer++) {
if (!buffer->jpg.frag_tab)
continue;
if (fh->buffers.need_contiguous) {
frag_tab = buffer->jpg.frag_tab[0];
if (frag_tab) {
mem = bus_to_virt(le32_to_cpu(frag_tab));
for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
ClearPageReserved(virt_to_page(mem + off));
kfree(mem);
buffer->jpg.frag_tab[0] = 0;
buffer->jpg.frag_tab[1] = 0;
}
} else {
for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
frag_tab = buffer->jpg.frag_tab[2 * j];
if (!frag_tab)
break;
ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
buffer->jpg.frag_tab[2 * j] = 0;
buffer->jpg.frag_tab[2 * j + 1] = 0;
}
}
free_page((unsigned long)buffer->jpg.frag_tab);
buffer->jpg.frag_tab = NULL;
}
fh->buffers.allocated = 0;
}
/*
* V4L Buffer grabbing
*/
static int
zoran_v4l_set_format (struct zoran_fh *fh,
int width,
int height,
const struct zoran_format *format)
{
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: %s - wrong frame size (%dx%d)\n",
ZR_DEVNAME(zr), __func__, width, height);
return -EINVAL;
}
bpp = (format->depth + 7) / 8;
/* Check against available buffer size */
if (height * width * bpp > fh->buffers.buffer_size) {
dprintk(1,
KERN_ERR
"%s: %s - video buffer size (%d kB) is too small\n",
ZR_DEVNAME(zr), __func__, fh->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: %s - wrong frame alignment\n",
ZR_DEVNAME(zr), __func__);
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 zoran_fh *fh, int num)
{
struct zoran *zr = fh->zr;
unsigned long flags;
int res = 0;
if (!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s - buffers not yet allocated\n",
ZR_DEVNAME(zr), __func__);
res = -ENOMEM;
}
/* No grabbing outside the buffer range! */
if (num >= fh->buffers.num_buffers || num < 0) {
dprintk(1,
KERN_ERR
"%s: %s - buffer %d is out of range\n",
ZR_DEVNAME(zr), __func__, num);
res = -EINVAL;
}
spin_lock_irqsave(&zr->spinlock, flags);
if (fh->buffers.active == ZORAN_FREE) {
if (zr->v4l_buffers.active == ZORAN_FREE) {
zr->v4l_buffers = fh->buffers;
fh->buffers.active = ZORAN_ACTIVE;
} else {
dprintk(1,
KERN_ERR
"%s: %s - another session is already capturing\n",
ZR_DEVNAME(zr), __func__);
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->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: %s - queueing buffer %d in state DONE!?\n",
ZR_DEVNAME(zr), __func__, 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->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->buffers.active;
return res;
}
/*
* Sync on a V4L buffer
*/
static int v4l_sync(struct zoran_fh *fh, int frame)
{
struct zoran *zr = fh->zr;
unsigned long flags;
if (fh->buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: %s - no grab active for this session\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
/* check passed-in frame number */
if (frame >= fh->buffers.num_buffers || frame < 0) {
dprintk(1,
KERN_ERR "%s: %s - frame %d is invalid\n",
ZR_DEVNAME(zr), __func__, 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: %s - attempt to sync on a buffer which was not queued?\n",
ZR_DEVNAME(zr), __func__);
return -EPROTO;
}
mutex_unlock(&zr->lock);
/* 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)) {
mutex_lock(&zr->lock);
return -ETIME;
}
mutex_lock(&zr->lock);
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: %s - internal state error\n",
ZR_DEVNAME(zr), __func__);
zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
fh->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->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 zoran_fh *fh, int num,
enum zoran_codec_mode mode)
{
struct zoran *zr = fh->zr;
unsigned long flags;
int res = 0;
/* Check if buffers are allocated */
if (!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s - buffers not yet allocated\n",
ZR_DEVNAME(zr), __func__);
return -ENOMEM;
}
/* No grabbing outside the buffer range! */
if (num >= fh->buffers.num_buffers || num < 0) {
dprintk(1,
KERN_ERR
"%s: %s - buffer %d out of range\n",
ZR_DEVNAME(zr), __func__, 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: %s - codec in wrong mode\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (fh->buffers.active == ZORAN_FREE) {
if (zr->jpg_buffers.active == ZORAN_FREE) {
zr->jpg_buffers = fh->buffers;
fh->buffers.active = ZORAN_ACTIVE;
} else {
dprintk(1,
KERN_ERR
"%s: %s - another session is already capturing\n",
ZR_DEVNAME(zr), __func__);
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: %s - queing frame in BUZ_STATE_DONE state!?\n",
ZR_DEVNAME(zr), __func__);
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->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->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->buffers.active;
return res;
}
static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
{
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->buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: %s(-1) - session not active\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
fh->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: %s - stop streaming but not in streaming mode\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
}
if ((res = zoran_jpg_queue_frame(fh, 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 zoran_fh *fh, struct zoran_sync *bs)
{
struct zoran *zr = fh->zr;
unsigned long flags;
int frame;
if (fh->buffers.active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: %s - capture is not currently active\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
dprintk(1,
KERN_ERR
"%s: %s - codec not in streaming mode\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
mutex_unlock(&zr->lock);
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);
mutex_lock(&zr->lock);
dprintk(1,
KERN_ERR
"%s: %s - timeout: codec isr=0x%02x\n",
ZR_DEVNAME(zr), __func__, isr);
return -ETIME;
}
mutex_lock(&zr->lock);
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->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
dprintk(2,
KERN_ERR "%s: %s - internal state error\n",
ZR_DEVNAME(zr), __func__);
*bs = zr->jpg_buffers.buffer[frame].bs;
bs->frame = frame;
zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
spin_unlock_irqrestore(&zr->spinlock, flags);
return 0;
}
static void zoran_open_init_session(struct zoran_fh *fh)
{
int i;
struct zoran *zr = fh->zr;
/* Per default, map the V4L Buffers */
map_mode_raw(fh);
/* 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;
/* jpg settings */
fh->jpg_settings = zr->jpg_settings;
/* buffers */
memset(&fh->buffers, 0, sizeof(fh->buffers));
for (i = 0; i < MAX_FRAME; i++) {
fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
fh->buffers.buffer[i].bs.frame = i;
}
fh->buffers.allocated = 0;
fh->buffers.active = ZORAN_FREE;
}
static void zoran_close_end_session(struct zoran_fh *fh)
{
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;
}
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
/* v4l capture */
if (fh->buffers.active != ZORAN_FREE) {
unsigned long flags;
spin_lock_irqsave(&zr->spinlock, flags);
zr36057_set_memgrab(zr, 0);
zr->v4l_buffers.allocated = 0;
zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
spin_unlock_irqrestore(&zr->spinlock, flags);
}
/* v4l buffers */
if (fh->buffers.allocated)
v4l_fbuffer_free(fh);
} else {
/* jpg capture */
if (fh->buffers.active != ZORAN_FREE) {
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
zr->jpg_buffers.allocated = 0;
zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
}
/* jpg buffers */
if (fh->buffers.allocated)
jpg_fbuffer_free(fh);
}
}
/*
* Open a zoran card. Right now the flags stuff is just playing
*/
static int zoran_open(struct file *file)
{
struct zoran *zr = video_drvdata(file);
struct zoran_fh *fh;
int res, first_open = 0;
dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
mutex_lock(&zr->lock);
if (zr->user >= 2048) {
dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
ZR_DEVNAME(zr), zr->user);
res = -EBUSY;
goto fail_unlock;
}
/* now, create the open()-specific file_ops struct */
fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
if (!fh) {
dprintk(1,
KERN_ERR
"%s: %s - allocation of zoran_fh failed\n",
ZR_DEVNAME(zr), __func__);
res = -ENOMEM;
goto fail_unlock;
}
v4l2_fh_init(&fh->fh, video_devdata(file));
/* 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: %s - allocation of overlay_mask failed\n",
ZR_DEVNAME(zr), __func__);
res = -ENOMEM;
goto fail_fh;
}
if (zr->user++ == 0)
first_open = 1;
/* 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(fh);
v4l2_fh_add(&fh->fh);
mutex_unlock(&zr->lock);
return 0;
fail_fh:
kfree(fh);
fail_unlock:
mutex_unlock(&zr->lock);
dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
ZR_DEVNAME(zr), res, zr->user);
return res;
}
static int
zoran_close(struct file *file)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
/* kernel locks (fs/device.c), so don't do that ourselves
* (prevents deadlocks) */
mutex_lock(&zr->lock);
zoran_close_end_session(fh);
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 (zr36067_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 */
decoder_call(zr, video, s_stream, 0);
encoder_call(zr, video, s_routing, 2, 0, 0);
}
}
mutex_unlock(&zr->lock);
v4l2_fh_del(&fh->fh);
v4l2_fh_exit(&fh->fh);
kfree(fh->overlay_mask);
kfree(fh);
dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
return 0;
}
static int setup_fbuffer(struct zoran_fh *fh,
void *base,
const struct zoran_format *fmt,
int width,
int height,
int bytesperline)
{
struct zoran *zr = fh->zr;
/* (Ronald) v4l/v4l2 guidelines */
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
return -EPERM;
/* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
ALi Magik (that needs very low latency while the card needs a
higher value always) */
if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
return -ENXIO;
/* we need a bytesperline value, even if not given */
if (!bytesperline)
bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
#if 0
if (zr->overlay_active) {
/* dzjee... stupid users... don't even bother to turn off
* overlay before changing the memory location...
* normally, we would return errors here. However, one of
* the tools that does this is... xawtv! and since xawtv
* is used by +/- 99% of the users, we'd rather be user-
* friendly and silently do as if nothing went wrong */
dprintk(3,
KERN_ERR
"%s: %s - forced overlay turnoff because framebuffer changed\n",
ZR_DEVNAME(zr), __func__);
zr36057_overlay(zr, 0);
}
#endif
if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
dprintk(1,
KERN_ERR
"%s: %s - no valid overlay format given\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (height <= 0 || width <= 0 || bytesperline <= 0) {
dprintk(1,
KERN_ERR
"%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
ZR_DEVNAME(zr), __func__, width, height, bytesperline);
return -EINVAL;
}
if (bytesperline & 3) {
dprintk(1,
KERN_ERR
"%s: %s - bytesperline (%d) must be 4-byte aligned\n",
ZR_DEVNAME(zr), __func__, bytesperline);
return -EINVAL;
}
zr->vbuf_base = (void *) ((unsigned long) base & ~3);
zr->vbuf_height = height;
zr->vbuf_width = width;
zr->vbuf_depth = fmt->depth;
zr->overlay_settings.format = fmt;
zr->vbuf_bytesperline = bytesperline;
/* The user should set new window parameters */
zr->overlay_settings.is_set = 0;
return 0;
}
static int setup_window(struct zoran_fh *fh,
int x,
int y,
int width,
int height,
struct v4l2_clip __user *clips,
unsigned int clipcount,
void __user *bitmap)
{
struct zoran *zr = fh->zr;
struct v4l2_clip *vcp = NULL;
int on, end;
if (!zr->vbuf_base) {
dprintk(1,
KERN_ERR
"%s: %s - frame buffer has to be set first\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (!fh->overlay_settings.format) {
dprintk(1,
KERN_ERR
"%s: %s - no overlay format set\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (clipcount > 2048) {
dprintk(1,
KERN_ERR
"%s: %s - invalid clipcount\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
/*
* The video front end needs 4-byte alinged line sizes, we correct that
* silently here if necessary
*/
if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
end = (x + width) & ~1; /* round down */
x = (x + 1) & ~1; /* round up */
width = end - x;
}
if (zr->vbuf_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 invalid parameters */
if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
dprintk(1,
KERN_ERR
"%s: %s - width = %d or height = %d invalid\n",
ZR_DEVNAME(zr), __func__, 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) {
/* write our own bitmap from the clips */
vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
if (vcp == NULL) {
dprintk(1,
KERN_ERR
"%s: %s - Alloc of clip mask failed\n",
ZR_DEVNAME(zr), __func__);
return -ENOMEM;
}
if (copy_from_user
(vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
vfree(vcp);
return -EFAULT;
}
write_overlay_mask(fh, 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 zoran_fh *fh, int on)
{
struct zoran *zr = fh->zr;
/* If there is nothing to do, return immediately */
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: %s - overlay is already active for another session\n",
ZR_DEVNAME(zr), __func__);
return -EBUSY;
}
if (!on && zr->overlay_active != ZORAN_FREE &&
fh->overlay_active == ZORAN_FREE) {
dprintk(1,
KERN_ERR
"%s: %s - you cannot cancel someone else's session\n",
ZR_DEVNAME(zr), __func__);
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->vbuf_base || !fh->overlay_settings.is_set) {
dprintk(1,
KERN_ERR
"%s: %s - buffer or window not set\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (!fh->overlay_settings.format) {
dprintk(1,
KERN_ERR
"%s: %s - no overlay format set\n",
ZR_DEVNAME(zr), __func__);
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);
}
/* get the status of a buffer in the clients buffer queue */
static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
struct v4l2_buffer *buf, int num)
{
struct zoran *zr = fh->zr;
unsigned long flags;
buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW:
/* check range */
if (num < 0 || num >= fh->buffers.num_buffers ||
!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s - wrong number or buffers not allocated\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
spin_lock_irqsave(&zr->spinlock, flags);
dprintk(3,
KERN_DEBUG
"%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
ZR_DEVNAME(zr), __func__,
"FAL"[fh->buffers.active], num,
"UPMD"[zr->v4l_buffers.buffer[num].state],
fh->buffers.buffer[num].map ? 'Y' : 'N');
spin_unlock_irqrestore(&zr->spinlock, flags);
buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf->length = fh->buffers.buffer_size;
/* get buffer */
buf->bytesused = fh->buffers.buffer[num].bs.length;
if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
fh->buffers.buffer[num].state == BUZ_STATE_USER) {
buf->sequence = fh->buffers.buffer[num].bs.seq;
buf->flags |= V4L2_BUF_FLAG_DONE;
buf->timestamp = fh->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->buffers.num_buffers ||
!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s - wrong number or buffers not allocated\n",
ZR_DEVNAME(zr), __func__);
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->buffers.buffer_size;
/* these variables are only written after frame has been captured */
if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
fh->buffers.buffer[num].state == BUZ_STATE_USER) {
buf->sequence = fh->buffers.buffer[num].bs.seq;
buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
buf->bytesused = fh->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: %s - invalid buffer type|map_mode (%d|%d)\n",
ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
return -EINVAL;
}
buf->memory = V4L2_MEMORY_MMAP;
buf->index = num;
buf->m.offset = buf->length * num;
return 0;
}
static int
zoran_set_norm (struct zoran *zr,
v4l2_std_id norm)
{
int on;
if (zr->v4l_buffers.active != ZORAN_FREE ||
zr->jpg_buffers.active != ZORAN_FREE) {
dprintk(1,
KERN_WARNING
"%s: %s called while in playback/capture mode\n",
ZR_DEVNAME(zr), __func__);
return -EBUSY;
}
if (!(norm & zr->card.norms)) {
dprintk(1,
KERN_ERR "%s: %s - unsupported norm %llx\n",
ZR_DEVNAME(zr), __func__, norm);
return -EINVAL;
}
if (norm & V4L2_STD_SECAM)
zr->timing = zr->card.tvn[2];
else if (norm & V4L2_STD_NTSC)
zr->timing = zr->card.tvn[1];
else
zr->timing = zr->card.tvn[0];
/* 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_call(zr, video, s_std, norm);
encoder_call(zr, video, s_std_output, norm);
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)
{
if (input == zr->input) {
return 0;
}
if (zr->v4l_buffers.active != ZORAN_FREE ||
zr->jpg_buffers.active != ZORAN_FREE) {
dprintk(1,
KERN_WARNING
"%s: %s called while in playback/capture mode\n",
ZR_DEVNAME(zr), __func__);
return -EBUSY;
}
if (input < 0 || input >= zr->card.inputs) {
dprintk(1,
KERN_ERR
"%s: %s - unsupported input %d\n",
ZR_DEVNAME(zr), __func__, input);
return -EINVAL;
}
zr->input = input;
decoder_call(zr, video, s_routing,
zr->card.input[input].muxsel, 0, 0);
return 0;
}
/*
* ioctl routine
*/
static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
pci_name(zr->pci_dev));
cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
{
unsigned int num, i;
for (num = i = 0; i < NUM_FORMATS; i++) {
if (zoran_formats[i].flags & flag && num++ == fmt->index) {
strncpy(fmt->description, zoran_formats[i].name,
sizeof(fmt->description) - 1);
/* fmt struct pre-zeroed, so adding '\0' not needed */
fmt->pixelformat = zoran_formats[i].fourcc;
if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
return 0;
}
}
return -EINVAL;
}
static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_fmtdesc *f)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
}
static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_fmtdesc *f)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
}
static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
struct v4l2_fmtdesc *f)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
}
static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
(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_TB : 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;
return 0;
}
static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
if (fh->map_mode != ZORAN_MAP_MODE_RAW)
return zoran_g_fmt_vid_out(file, fh, fmt);
fmt->fmt.pix.width = fh->v4l_settings.width;
fmt->fmt.pix.height = fh->v4l_settings.height;
fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
fh->v4l_settings.height;
fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
return 0;
}
static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
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;
return 0;
}
static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
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;
return 0;
}
static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
struct zoran_jpg_settings settings;
int res = 0;
if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
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;
if (settings.HorDcm > 1) {
settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
} else {
settings.img_x = 0;
settings.img_width = BUZ_MAX_WIDTH;
}
/* check */
res = zoran_check_jpg_settings(zr, &settings, 1);
if (res)
return res;
/* 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);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return res;
}
static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int bpp;
int i;
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
return zoran_try_fmt_vid_out(file, fh, fmt);
for (i = 0; i < NUM_FORMATS; i++)
if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
break;
if (i == NUM_FORMATS)
return -EINVAL;
bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
v4l_bound_align_image(
&fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
&fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
return 0;
}
static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
int res;
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);
res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
fmt->fmt.win.w.width, fmt->fmt.win.w.height,
(struct v4l2_clip __user *)fmt->fmt.win.clips,
fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
return res;
}
static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
__le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
struct zoran_jpg_settings settings;
int res = 0;
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.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
if (fh->buffers.allocated) {
dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
return res;
}
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;
if (settings.HorDcm > 1) {
settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
} else {
settings.img_x = 0;
settings.img_width = BUZ_MAX_WIDTH;
}
/* check */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
return res;
/* it's ok, so set them */
fh->jpg_settings = settings;
map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_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);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return res;
}
static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int i;
int res = 0;
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
return zoran_s_fmt_vid_out(file, fh, fmt);
for (i = 0; i < NUM_FORMATS; i++)
if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
break;
if (i == NUM_FORMATS) {
dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
return -EINVAL;
}
if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
fh->buffers.active != ZORAN_FREE) {
dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
return res;
}
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;
map_mode_raw(fh);
res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
&zoran_formats[i]);
if (res)
return res;
/* tell the user the results/missing stuff */
fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
return res;
}
static int zoran_g_fbuf(struct file *file, void *__fh,
struct v4l2_framebuffer *fb)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
memset(fb, 0, sizeof(*fb));
fb->base = zr->vbuf_base;
fb->fmt.width = zr->vbuf_width;
fb->fmt.height = zr->vbuf_height;
if (zr->overlay_settings.format)
fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
fb->fmt.bytesperline = zr->vbuf_bytesperline;
fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
fb->fmt.field = V4L2_FIELD_INTERLACED;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
return 0;
}
static int zoran_s_fbuf(struct file *file, void *__fh,
const struct v4l2_framebuffer *fb)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int i, res = 0;
__le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
for (i = 0; i < NUM_FORMATS; i++)
if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
break;
if (i == 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;
}
res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
fb->fmt.height, fb->fmt.bytesperline);
return res;
}
static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
{
struct zoran_fh *fh = __fh;
int res;
res = setup_overlay(fh, on);
return res;
}
static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0;
if (req->memory != V4L2_MEMORY_MMAP) {
dprintk(2,
KERN_ERR
"%s: only MEMORY_MMAP capture is supported, not %d\n",
ZR_DEVNAME(zr), req->memory);
return -EINVAL;
}
if (req->count == 0)
return zoran_streamoff(file, fh, req->type);
if (fh->buffers.allocated) {
dprintk(2,
KERN_ERR
"%s: VIDIOC_REQBUFS - buffers already allocated\n",
ZR_DEVNAME(zr));
res = -EBUSY;
return res;
}
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;
/* The next mmap will map the V4L buffers */
map_mode_raw(fh);
fh->buffers.num_buffers = req->count;
if (v4l_fbuffer_alloc(fh)) {
res = -ENOMEM;
return res;
}
} 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;
/* The next mmap will map the MJPEG buffers */
map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
fh->buffers.num_buffers = req->count;
fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
if (jpg_fbuffer_alloc(fh)) {
res = -ENOMEM;
return res;
}
} else {
dprintk(1,
KERN_ERR
"%s: VIDIOC_REQBUFS - unknown type %d\n",
ZR_DEVNAME(zr), req->type);
res = -EINVAL;
return res;
}
return res;
}
static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
{
struct zoran_fh *fh = __fh;
int res;
res = zoran_v4l2_buffer_status(fh, buf, buf->index);
return res;
}
static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0, codec_mode, buf_type;
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;
return res;
}
res = zoran_v4l_queue_frame(fh, buf->index);
if (res)
return res;
if (!zr->v4l_memgrab_active && fh->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;
return res;
}
res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
if (res != 0)
return res;
if (zr->codec_mode == BUZ_MODE_IDLE &&
fh->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;
break;
}
return res;
}
static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0, buf_type, num = -1; /* compiler borks here (?) */
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;
return res;
}
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;
return res;
}
res = v4l_sync(fh, num);
if (res)
return res;
zr->v4l_sync_tail++;
res = zoran_v4l2_buffer_status(fh, 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;
return res;
}
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;
return res;
}
bs.frame = 0; /* suppress compiler warning */
res = jpg_sync(fh, &bs);
if (res)
return res;
res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
break;
}
default:
dprintk(1, KERN_ERR
"%s: VIDIOC_DQBUF - unsupported type %d\n",
ZR_DEVNAME(zr), buf->type);
res = -EINVAL;
break;
}
return res;
}
static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0;
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW: /* raw capture */
if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
fh->buffers.active != ZORAN_ACTIVE) {
res = -EBUSY;
return res;
}
zr->v4l_buffers.active = fh->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->buffers.active != ZORAN_ACTIVE) {
res = -EBUSY;
return res;
}
zr->jpg_buffers.active = fh->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;
break;
}
return res;
}
static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int i, res = 0;
unsigned long flags;
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW: /* raw capture */
if (fh->buffers.active == ZORAN_FREE &&
zr->v4l_buffers.active != ZORAN_FREE) {
res = -EPERM; /* stay off other's settings! */
return res;
}
if (zr->v4l_buffers.active == ZORAN_FREE)
return res;
spin_lock_irqsave(&zr->spinlock, flags);
/* unload capture */
if (zr->v4l_memgrab_active) {
zr36057_set_memgrab(zr, 0);
}
for (i = 0; i < fh->buffers.num_buffers; i++)
zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
fh->buffers = zr->v4l_buffers;
zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
zr->v4l_grab_seq = 0;
zr->v4l_pend_head = zr->v4l_pend_tail = 0;
zr->v4l_sync_tail = 0;
spin_unlock_irqrestore(&zr->spinlock, flags);
break;
case ZORAN_MAP_MODE_JPG_REC:
case ZORAN_MAP_MODE_JPG_PLAY:
if (fh->buffers.active == ZORAN_FREE &&
zr->jpg_buffers.active != ZORAN_FREE) {
res = -EPERM; /* stay off other's settings! */
return res;
}
if (zr->jpg_buffers.active == ZORAN_FREE)
return res;
res = jpg_qbuf(fh, -1,
(fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
BUZ_MODE_MOTION_COMPRESS :
BUZ_MODE_MOTION_DECOMPRESS);
if (res)
return res;
break;
default:
dprintk(1, KERN_ERR
"%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
ZR_DEVNAME(zr), fh->map_mode);
res = -EINVAL;
break;
}
return res;
}
static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
*std = zr->norm;
return 0;
}
static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0;
res = zoran_set_norm(zr, std);
if (res)
return res;
res = wait_grab_pending(zr);
return res;
}
static int zoran_enum_input(struct file *file, void *__fh,
struct v4l2_input *inp)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
if (inp->index >= zr->card.inputs)
return -EINVAL;
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 */
decoder_call(zr, video, g_input_status, &inp->status);
return 0;
}
static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
*input = zr->input;
return 0;
}
static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res;
res = zoran_set_input(zr, input);
if (res)
return res;
/* Make sure the changes come into effect */
res = wait_grab_pending(zr);
return res;
}
static int zoran_enum_output(struct file *file, void *__fh,
struct v4l2_output *outp)
{
if (outp->index != 0)
return -EINVAL;
outp->index = 0;
outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
return 0;
}
static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
{
*output = 0;
return 0;
}
static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
{
if (output != 0)
return -EINVAL;
return 0;
}
/* cropping (sub-frame capture) */
static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
dprintk(1, KERN_ERR
"%s: VIDIOC_G_SELECTION - subcapture only supported for compressed capture\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
sel->r.top = fh->jpg_settings.img_y;
sel->r.left = fh->jpg_settings.img_x;
sel->r.width = fh->jpg_settings.img_width;
sel->r.height = fh->jpg_settings.img_height;
break;
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r.top = sel->r.left = 0;
sel->r.width = BUZ_MIN_WIDTH;
sel->r.height = BUZ_MIN_HEIGHT;
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r.top = sel->r.left = 0;
sel->r.width = BUZ_MAX_WIDTH;
sel->r.height = BUZ_MAX_HEIGHT;
break;
default:
return -EINVAL;
}
return 0;
}
static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
struct zoran_jpg_settings settings;
int res;
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
dprintk(1, KERN_ERR
"%s: VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n",
ZR_DEVNAME(zr));
return -EINVAL;
}
settings = fh->jpg_settings;
if (fh->buffers.allocated) {
dprintk(1, KERN_ERR
"%s: VIDIOC_S_SELECTION - cannot change settings while active\n",
ZR_DEVNAME(zr));
return -EBUSY;
}
/* move into a form that we understand */
settings.img_x = sel->r.left;
settings.img_y = sel->r.top;
settings.img_width = sel->r.width;
settings.img_height = sel->r.height;
/* check validity */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
return res;
/* accept */
fh->jpg_settings = settings;
return res;
}
static int zoran_g_jpegcomp(struct file *file, void *__fh,
struct v4l2_jpegcompression *params)
{
struct zoran_fh *fh = __fh;
memset(params, 0, sizeof(*params));
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;
return 0;
}
static int zoran_s_jpegcomp(struct file *file, void *__fh,
const struct v4l2_jpegcompression *params)
{
struct zoran_fh *fh = __fh;
struct zoran *zr = fh->zr;
int res = 0;
struct zoran_jpg_settings settings;
settings = fh->jpg_settings;
settings.jpg_comp = *params;
if (fh->buffers.active != ZORAN_FREE) {
dprintk(1, KERN_WARNING
"%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
ZR_DEVNAME(zr));
res = -EBUSY;
return res;
}
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
return res;
if (!fh->buffers.allocated)
fh->buffers.buffer_size =
zoran_v4l2_calc_bufsize(&fh->jpg_settings);
fh->jpg_settings.jpg_comp = settings.jpg_comp;
return res;
}
static unsigned int
zoran_poll (struct file *file,
poll_table *wait)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
int res = v4l2_ctrl_poll(file, wait);
int frame;
unsigned long flags;
/* 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
*/
switch (fh->map_mode) {
case ZORAN_MAP_MODE_RAW:
poll_wait(file, &zr->v4l_capq, wait);
frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
spin_lock_irqsave(&zr->spinlock, flags);
dprintk(3,
KERN_DEBUG
"%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
ZR_DEVNAME(zr), __func__,
"FAL"[fh->buffers.active], zr->v4l_sync_tail,
"UPMD"[zr->v4l_buffers.buffer[frame].state],
zr->v4l_pend_tail, zr->v4l_pend_head);
/* Process is the one capturing? */
if (fh->buffers.active != ZORAN_FREE &&
/* Buffer ready to DQBUF? */
zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
res |= POLLIN | POLLRDNORM;
spin_unlock_irqrestore(&zr->spinlock, flags);
break;
case ZORAN_MAP_MODE_JPG_REC:
case ZORAN_MAP_MODE_JPG_PLAY:
poll_wait(file, &zr->jpg_capq, wait);
frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
spin_lock_irqsave(&zr->spinlock, flags);
dprintk(3,
KERN_DEBUG
"%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
ZR_DEVNAME(zr), __func__,
"FAL"[fh->buffers.active], zr->jpg_que_tail,
"UPMD"[zr->jpg_buffers.buffer[frame].state],
zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
if (fh->buffers.active != ZORAN_FREE &&
zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
res |= POLLIN | POLLRDNORM;
else
res |= POLLOUT | POLLWRNORM;
}
spin_unlock_irqrestore(&zr->spinlock, flags);
break;
default:
dprintk(1,
KERN_ERR
"%s: %s - internal error, unknown map_mode=%d\n",
ZR_DEVNAME(zr), __func__, fh->map_mode);
res |= POLLERR;
}
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;
atomic_inc(&map->count);
}
static void
zoran_vm_close (struct vm_area_struct *vma)
{
struct zoran_mapping *map = vma->vm_private_data;
struct zoran_fh *fh = map->fh;
struct zoran *zr = fh->zr;
int i;
dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
__func__, mode_name(fh->map_mode));
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (fh->buffers.buffer[i].map == map)
fh->buffers.buffer[i].map = NULL;
}
kfree(map);
/* Any buffers still mapped? */
for (i = 0; i < fh->buffers.num_buffers; i++) {
if (fh->buffers.buffer[i].map) {
return;
}
}
dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
__func__, mode_name(fh->map_mode));
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
if (fh->buffers.active != ZORAN_FREE) {
unsigned long flags;
spin_lock_irqsave(&zr->spinlock, flags);
zr36057_set_memgrab(zr, 0);
zr->v4l_buffers.allocated = 0;
zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
spin_unlock_irqrestore(&zr->spinlock, flags);
}
v4l_fbuffer_free(fh);
} else {
if (fh->buffers.active != ZORAN_FREE) {
jpg_qbuf(fh, -1, zr->codec_mode);
zr->jpg_buffers.allocated = 0;
zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
}
jpg_fbuffer_free(fh);
}
}
static const 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: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
ZR_DEVNAME(zr), __func__,
mode_name(fh->map_mode), 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: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
ZR_DEVNAME(zr), __func__);
return -EINVAL;
}
if (!fh->buffers.allocated) {
dprintk(1,
KERN_ERR
"%s: %s(%s) - buffers not yet allocated\n",
ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
res = -ENOMEM;
return res;
}
first = offset / fh->buffers.buffer_size;
last = first - 1 + size / fh->buffers.buffer_size;
if (offset % fh->buffers.buffer_size != 0 ||
size % fh->buffers.buffer_size != 0 || first < 0 ||
last < 0 || first >= fh->buffers.num_buffers ||
last >= fh->buffers.buffer_size) {
dprintk(1,
KERN_ERR
"%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
fh->buffers.buffer_size,
fh->buffers.num_buffers);
res = -EINVAL;
return res;
}
/* Check if any buffers are already mapped */
for (i = first; i <= last; i++) {
if (fh->buffers.buffer[i].map) {
dprintk(1,
KERN_ERR
"%s: %s(%s) - buffer %d already mapped\n",
ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
res = -EBUSY;
return res;
}
}
/* map these buffers */
map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
if (!map) {
res = -ENOMEM;
return res;
}
map->fh = fh;
atomic_set(&map->count, 1);
vma->vm_ops = &zoran_vm_ops;
vma->vm_flags |= VM_DONTEXPAND;
vma->vm_private_data = map;
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
for (i = first; i <= last; i++) {
todo = size;
if (todo > fh->buffers.buffer_size)
todo = fh->buffers.buffer_size;
page = fh->buffers.buffer[i].v4l.fbuffer_phys;
if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
todo, PAGE_SHARED)) {
dprintk(1,
KERN_ERR
"%s: %s(V4L) - remap_pfn_range failed\n",
ZR_DEVNAME(zr), __func__);
res = -EAGAIN;
return res;
}
size -= todo;
start += todo;
fh->buffers.buffer[i].map = map;
if (size == 0)
break;
}
} else {
for (i = first; i <= last; i++) {
for (j = 0;
j < fh->buffers.buffer_size / PAGE_SIZE;
j++) {
fraglen =
(le32_to_cpu(fh->buffers.buffer[i].jpg.
frag_tab[2 * j + 1]) & ~1) << 1;
todo = size;
if (todo > fraglen)
todo = fraglen;
pos =
le32_to_cpu(fh->buffers.
buffer[i].jpg.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: %s(V4L) - remap_pfn_range failed\n",
ZR_DEVNAME(zr), __func__);
res = -EAGAIN;
return res;
}
size -= todo;
start += todo;
if (size == 0)
break;
if (le32_to_cpu(fh->buffers.buffer[i].jpg.
frag_tab[2 * j + 1]) & 1)
break; /* was last fragment */
}
fh->buffers.buffer[i].map = map;
if (size == 0)
break;
}
}
return res;
}
static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
.vidioc_querycap = zoran_querycap,
.vidioc_s_selection = zoran_s_selection,
.vidioc_g_selection = zoran_g_selection,
.vidioc_enum_input = zoran_enum_input,
.vidioc_g_input = zoran_g_input,
.vidioc_s_input = zoran_s_input,
.vidioc_enum_output = zoran_enum_output,
.vidioc_g_output = zoran_g_output,
.vidioc_s_output = zoran_s_output,
.vidioc_g_fbuf = zoran_g_fbuf,
.vidioc_s_fbuf = zoran_s_fbuf,
.vidioc_g_std = zoran_g_std,
.vidioc_s_std = zoran_s_std,
.vidioc_g_jpegcomp = zoran_g_jpegcomp,
.vidioc_s_jpegcomp = zoran_s_jpegcomp,
.vidioc_overlay = zoran_overlay,
.vidioc_reqbufs = zoran_reqbufs,
.vidioc_querybuf = zoran_querybuf,
.vidioc_qbuf = zoran_qbuf,
.vidioc_dqbuf = zoran_dqbuf,
.vidioc_streamon = zoran_streamon,
.vidioc_streamoff = zoran_streamoff,
.vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap,
.vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out,
.vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay,
.vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap,
.vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out,
.vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay,
.vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap,
.vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out,
.vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay,
.vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap,
.vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out,
.vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static const struct v4l2_file_operations zoran_fops = {
.owner = THIS_MODULE,
.open = zoran_open,
.release = zoran_close,
.unlocked_ioctl = video_ioctl2,
.mmap = zoran_mmap,
.poll = zoran_poll,
};
struct video_device zoran_template = {
.name = ZORAN_NAME,
.fops = &zoran_fops,
.ioctl_ops = &zoran_ioctl_ops,
.release = &zoran_vdev_release,
.tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
};
Reference in New Issue View Git Blame Copy Permalink