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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/zoran_driver.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/media/video/zoran_driver.c')
-rw-r--r--drivers/media/video/zoran_driver.c4699
1 files changed, 4699 insertions, 0 deletions
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
new file mode 100644
index 00000000000..ba838a42ec8
--- /dev/null
+++ b/drivers/media/video/zoran_driver.c
@@ -0,0 +1,4699 @@
+/*
+ * 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((void *) 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;
+ }
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+
+ 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);
+ }
+
+ 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->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->owner)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: failed to grab ownership of i2c encoder\n",
+ ZR_DEVNAME(zr));
+ res = -EIO;
+ module_put(zr->decoder->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 = kmalloc(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;
+ }
+ memset(fh, 0, sizeof(struct zoran_fh));
+ /* 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->owner);
+ if (zr->encoder) {
+ module_put(zr->encoder->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->owner);
+ if (zr->encoder) {
+ module_put(zr->encoder->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,
+ .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
+};
+