--- /dev/null
+/*
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/wait.h>
+
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+#include <linux/spinlock.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include "videocodec.h"
+
+#include <asm/byteorder.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <linux/proc_fs.h>
+
+#include <linux/mutex.h>
+#include "zoran.h"
+#include "zoran_device.h"
+#include "zoran_card.h"
+
+
+const struct zoran_format zoran_formats[] = {
+ {
+ .name = "15-bit RGB LE",
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 15,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
+ ZR36057_VFESPFR_LittleEndian,
+ }, {
+ .name = "15-bit RGB BE",
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 15,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
+ }, {
+ .name = "16-bit RGB LE",
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 16,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
+ ZR36057_VFESPFR_LittleEndian,
+ }, {
+ .name = "16-bit RGB BE",
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 16,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
+ }, {
+ .name = "24-bit RGB",
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 24,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
+ }, {
+ .name = "32-bit RGB LE",
+ .fourcc = V4L2_PIX_FMT_BGR32,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 32,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
+ }, {
+ .name = "32-bit RGB BE",
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .depth = 32,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_RGB888,
+ }, {
+ .name = "4:2:2, packed, YUYV",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ .depth = 16,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_YUV422,
+ }, {
+ .name = "4:2:2, packed, UYVY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ .depth = 16,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_OVERLAY,
+ .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
+ }, {
+ .name = "Hardware-encoded Motion-JPEG",
+ .fourcc = V4L2_PIX_FMT_MJPEG,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ .depth = 0,
+ .flags = ZORAN_FORMAT_CAPTURE |
+ ZORAN_FORMAT_PLAYBACK |
+ ZORAN_FORMAT_COMPRESSED,
+ }
+};
+#define NUM_FORMATS ARRAY_SIZE(zoran_formats)
+
+ /* small helper function for calculating buffersizes for v4l2
+ * we calculate the nearest higher power-of-two, which
+ * will be the recommended buffersize */
+static __u32
+zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
+{
+ __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
+ __u32 num = (1024 * 512) / (div);
+ __u32 result = 2;
+
+ num--;
+ while (num) {
+ num >>= 1;
+ result <<= 1;
+ }
+
+ if (result > jpg_bufsize)
+ return jpg_bufsize;
+ if (result < 8192)
+ return 8192;
+ return result;
+}
+
+/* forward references */
+static void v4l_fbuffer_free(struct zoran_fh *fh);
+static void jpg_fbuffer_free(struct zoran_fh *fh);
+
+/* Set mapping mode */
+static void map_mode_raw(struct zoran_fh *fh)
+{
+ fh->map_mode = ZORAN_MAP_MODE_RAW;
+ fh->buffers.buffer_size = v4l_bufsize;
+ fh->buffers.num_buffers = v4l_nbufs;
+}
+static void map_mode_jpg(struct zoran_fh *fh, int play)
+{
+ fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
+ fh->buffers.buffer_size = jpg_bufsize;
+ fh->buffers.num_buffers = jpg_nbufs;
+}
+static inline const char *mode_name(enum zoran_map_mode mode)
+{
+ return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
+}
+
+/*
+ * Allocate the V4L grab buffers
+ *
+ * These have to be pysically contiguous.
+ */
+
+static int v4l_fbuffer_alloc(struct zoran_fh *fh)
+{
+ struct zoran *zr = fh->zr;
+ int i, off;
+ unsigned char *mem;
+
+ for (i = 0; i < fh->buffers.num_buffers; i++) {
+ if (fh->buffers.buffer[i].v4l.fbuffer)
+ dprintk(2,
+ KERN_WARNING
+ "%s: %s - buffer %d already allocated!?\n",
+ ZR_DEVNAME(zr), __func__, i);
+
+ //udelay(20);
+ mem = kmalloc(fh->buffers.buffer_size,
+ GFP_KERNEL | __GFP_NOWARN);
+ if (!mem) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - kmalloc for V4L buf %d failed\n",
+ ZR_DEVNAME(zr), __func__, i);
+ v4l_fbuffer_free(fh);
+ return -ENOBUFS;
+ }
+ fh->buffers.buffer[i].v4l.fbuffer = mem;
+ fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
+ fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
+ for (off = 0; off < fh->buffers.buffer_size;
+ off += PAGE_SIZE)
+ SetPageReserved(virt_to_page(mem + off));
+ dprintk(4,
+ KERN_INFO
+ "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
+ ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
+ (unsigned long long)virt_to_bus(mem));
+ }
+
+ fh->buffers.allocated = 1;
+
+ return 0;
+}
+
+/* free the V4L grab buffers */
+static void v4l_fbuffer_free(struct zoran_fh *fh)
+{
+ struct zoran *zr = fh->zr;
+ int i, off;
+ unsigned char *mem;
+
+ dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
+
+ for (i = 0; i < fh->buffers.num_buffers; i++) {
+ if (!fh->buffers.buffer[i].v4l.fbuffer)
+ continue;
+
+ mem = fh->buffers.buffer[i].v4l.fbuffer;
+ for (off = 0; off < fh->buffers.buffer_size;
+ off += PAGE_SIZE)
+ ClearPageReserved(virt_to_page(mem + off));
+ kfree(fh->buffers.buffer[i].v4l.fbuffer);
+ fh->buffers.buffer[i].v4l.fbuffer = NULL;
+ }
+
+ fh->buffers.allocated = 0;
+}
+
+/*
+ * Allocate the MJPEG grab buffers.
+ *
+ * If a Natoma chipset is present and this is a revision 1 zr36057,
+ * each MJPEG buffer needs to be physically contiguous.
+ * (RJ: This statement is from Dave Perks' original driver,
+ * I could never check it because I have a zr36067)
+ *
+ * RJ: The contents grab buffers needs never be accessed in the driver.
+ * Therefore there is no need to allocate them with vmalloc in order
+ * to get a contiguous virtual memory space.
+ * I don't understand why many other drivers first allocate them with
+ * vmalloc (which uses internally also get_zeroed_page, but delivers you
+ * virtual addresses) and then again have to make a lot of efforts
+ * to get the physical address.
+ *
+ * Ben Capper:
+ * On big-endian architectures (such as ppc) some extra steps
+ * are needed. When reading and writing to the stat_com array
+ * and fragment buffers, the device expects to see little-
+ * endian values. The use of cpu_to_le32() and le32_to_cpu()
+ * in this function (and one or two others in zoran_device.c)
+ * ensure that these values are always stored in little-endian
+ * form, regardless of architecture. The zr36057 does Very Bad
+ * Things on big endian architectures if the stat_com array
+ * and fragment buffers are not little-endian.
+ */
+
+static int jpg_fbuffer_alloc(struct zoran_fh *fh)
+{
+ struct zoran *zr = fh->zr;
+ int i, j, off;
+ u8 *mem;
+
+ for (i = 0; i < fh->buffers.num_buffers; i++) {
+ if (fh->buffers.buffer[i].jpg.frag_tab)
+ dprintk(2,
+ KERN_WARNING
+ "%s: %s - buffer %d already allocated!?\n",
+ ZR_DEVNAME(zr), __func__, i);
+
+ /* Allocate fragment table for this buffer */
+
+ mem = (void *)get_zeroed_page(GFP_KERNEL);
+ if (!mem) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
+ ZR_DEVNAME(zr), __func__, i);
+ jpg_fbuffer_free(fh);
+ return -ENOBUFS;
+ }
+ fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
+ fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
+
+ if (fh->buffers.need_contiguous) {
+ mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
+ if (mem == NULL) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - kmalloc failed for buffer %d\n",
+ ZR_DEVNAME(zr), __func__, i);
+ jpg_fbuffer_free(fh);
+ return -ENOBUFS;
+ }
+ fh->buffers.buffer[i].jpg.frag_tab[0] =
+ cpu_to_le32(virt_to_bus(mem));
+ fh->buffers.buffer[i].jpg.frag_tab[1] =
+ cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
+ for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
+ SetPageReserved(virt_to_page(mem + off));
+ } else {
+ /* jpg_bufsize is already page aligned */
+ for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
+ mem = (void *)get_zeroed_page(GFP_KERNEL);
+ if (mem == NULL) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - get_zeroed_page failed for buffer %d\n",
+ ZR_DEVNAME(zr), __func__, i);
+ jpg_fbuffer_free(fh);
+ return -ENOBUFS;
+ }
+
+ fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
+ cpu_to_le32(virt_to_bus(mem));
+ fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
+ cpu_to_le32((PAGE_SIZE >> 2) << 1);
+ SetPageReserved(virt_to_page(mem));
+ }
+
+ fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
+ }
+ }
+
+ dprintk(4,
+ KERN_DEBUG "%s: %s - %d KB allocated\n",
+ ZR_DEVNAME(zr), __func__,
+ (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
+
+ fh->buffers.allocated = 1;
+
+ return 0;
+}
+
+/* free the MJPEG grab buffers */
+static void jpg_fbuffer_free(struct zoran_fh *fh)
+{
+ struct zoran *zr = fh->zr;
+ int i, j, off;
+ unsigned char *mem;
+ __le32 frag_tab;
+ struct zoran_buffer *buffer;
+
+ dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
+
+ for (i = 0, buffer = &fh->buffers.buffer[0];
+ i < fh->buffers.num_buffers; i++, buffer++) {
+ if (!buffer->jpg.frag_tab)
+ continue;
+
+ if (fh->buffers.need_contiguous) {
+ frag_tab = buffer->jpg.frag_tab[0];
+
+ if (frag_tab) {
+ mem = bus_to_virt(le32_to_cpu(frag_tab));
+ for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
+ ClearPageReserved(virt_to_page(mem + off));
+ kfree(mem);
+ buffer->jpg.frag_tab[0] = 0;
+ buffer->jpg.frag_tab[1] = 0;
+ }
+ } else {
+ for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
+ frag_tab = buffer->jpg.frag_tab[2 * j];
+
+ if (!frag_tab)
+ break;
+ ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
+ free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
+ buffer->jpg.frag_tab[2 * j] = 0;
+ buffer->jpg.frag_tab[2 * j + 1] = 0;
+ }
+ }
+
+ free_page((unsigned long)buffer->jpg.frag_tab);
+ buffer->jpg.frag_tab = NULL;
+ }
+
+ fh->buffers.allocated = 0;
+}
+
+/*
+ * V4L Buffer grabbing
+ */
+
+static int
+zoran_v4l_set_format (struct zoran_fh *fh,
+ int width,
+ int height,
+ const struct zoran_format *format)
+{
+ struct zoran *zr = fh->zr;
+ int bpp;
+
+ /* Check size and format of the grab wanted */
+
+ if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
+ height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - wrong frame size (%dx%d)\n",
+ ZR_DEVNAME(zr), __func__, width, height);
+ return -EINVAL;
+ }
+
+ bpp = (format->depth + 7) / 8;
+
+ /* Check against available buffer size */
+ if (height * width * bpp > fh->buffers.buffer_size) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - video buffer size (%d kB) is too small\n",
+ ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
+ return -EINVAL;
+ }
+
+ /* The video front end needs 4-byte alinged line sizes */
+
+ if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - wrong frame alignment\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ fh->v4l_settings.width = width;
+ fh->v4l_settings.height = height;
+ fh->v4l_settings.format = format;
+ fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
+
+ return 0;
+}
+
+static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
+{
+ struct zoran *zr = fh->zr;
+ unsigned long flags;
+ int res = 0;
+
+ if (!fh->buffers.allocated) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - buffers not yet allocated\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -ENOMEM;
+ }
+
+ /* No grabbing outside the buffer range! */
+ if (num >= fh->buffers.num_buffers || num < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - buffer %d is out of range\n",
+ ZR_DEVNAME(zr), __func__, num);
+ res = -EINVAL;
+ }
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+
+ if (fh->buffers.active == ZORAN_FREE) {
+ if (zr->v4l_buffers.active == ZORAN_FREE) {
+ zr->v4l_buffers = fh->buffers;
+ fh->buffers.active = ZORAN_ACTIVE;
+ } else {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - another session is already capturing\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -EBUSY;
+ }
+ }
+
+ /* make sure a grab isn't going on currently with this buffer */
+ if (!res) {
+ switch (zr->v4l_buffers.buffer[num].state) {
+ default:
+ case BUZ_STATE_PEND:
+ if (zr->v4l_buffers.active == ZORAN_FREE) {
+ fh->buffers.active = ZORAN_FREE;
+ zr->v4l_buffers.allocated = 0;
+ }
+ res = -EBUSY; /* what are you doing? */
+ break;
+ case BUZ_STATE_DONE:
+ dprintk(2,
+ KERN_WARNING
+ "%s: %s - queueing buffer %d in state DONE!?\n",
+ ZR_DEVNAME(zr), __func__, num);
+ case BUZ_STATE_USER:
+ /* since there is at least one unused buffer there's room for at least
+ * one more pend[] entry */
+ zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
+ zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
+ zr->v4l_buffers.buffer[num].bs.length =
+ fh->v4l_settings.bytesperline *
+ zr->v4l_settings.height;
+ fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
+ break;
+ }
+ }
+
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ if (!res && zr->v4l_buffers.active == ZORAN_FREE)
+ zr->v4l_buffers.active = fh->buffers.active;
+
+ return res;
+}
+
+/*
+ * Sync on a V4L buffer
+ */
+
+static int v4l_sync(struct zoran_fh *fh, int frame)
+{
+ struct zoran *zr = fh->zr;
+ unsigned long flags;
+
+ if (fh->buffers.active == ZORAN_FREE) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - no grab active for this session\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ /* check passed-in frame number */
+ if (frame >= fh->buffers.num_buffers || frame < 0) {
+ dprintk(1,
+ KERN_ERR "%s: %s - frame %d is invalid\n",
+ ZR_DEVNAME(zr), __func__, frame);
+ return -EINVAL;
+ }
+
+ /* Check if is buffer was queued at all */
+ if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - attempt to sync on a buffer which was not queued?\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EPROTO;
+ }
+
+ /* 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: %s - internal state error\n",
+ ZR_DEVNAME(zr), __func__);
+
+ zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
+ fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+
+ /* Check if streaming capture has finished */
+ if (zr->v4l_pend_tail == zr->v4l_pend_head) {
+ zr36057_set_memgrab(zr, 0);
+ if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
+ fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
+ zr->v4l_buffers.allocated = 0;
+ }
+ }
+
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ return 0;
+}
+
+/*
+ * Queue a MJPEG buffer for capture/playback
+ */
+
+static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
+ enum zoran_codec_mode mode)
+{
+ struct zoran *zr = fh->zr;
+ unsigned long flags;
+ int res = 0;
+
+ /* Check if buffers are allocated */
+ if (!fh->buffers.allocated) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - buffers not yet allocated\n",
+ ZR_DEVNAME(zr), __func__);
+ return -ENOMEM;
+ }
+
+ /* No grabbing outside the buffer range! */
+ if (num >= fh->buffers.num_buffers || num < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - buffer %d out of range\n",
+ ZR_DEVNAME(zr), __func__, num);
+ return -EINVAL;
+ }
+
+ /* what is the codec mode right now? */
+ if (zr->codec_mode == BUZ_MODE_IDLE) {
+ zr->jpg_settings = fh->jpg_settings;
+ } else if (zr->codec_mode != mode) {
+ /* wrong codec mode active - invalid */
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - codec in wrong mode\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ if (fh->buffers.active == ZORAN_FREE) {
+ if (zr->jpg_buffers.active == ZORAN_FREE) {
+ zr->jpg_buffers = fh->buffers;
+ fh->buffers.active = ZORAN_ACTIVE;
+ } else {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - another session is already capturing\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -EBUSY;
+ }
+ }
+
+ if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
+ /* Ok load up the jpeg codec */
+ zr36057_enable_jpg(zr, mode);
+ }
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+
+ if (!res) {
+ switch (zr->jpg_buffers.buffer[num].state) {
+ case BUZ_STATE_DONE:
+ dprintk(2,
+ KERN_WARNING
+ "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
+ ZR_DEVNAME(zr), __func__);
+ case BUZ_STATE_USER:
+ /* since there is at least one unused buffer there's room for at
+ *least one more pend[] entry */
+ zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
+ zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
+ fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
+ zoran_feed_stat_com(zr);
+ break;
+ default:
+ case BUZ_STATE_DMA:
+ case BUZ_STATE_PEND:
+ if (zr->jpg_buffers.active == ZORAN_FREE) {
+ fh->buffers.active = ZORAN_FREE;
+ zr->jpg_buffers.allocated = 0;
+ }
+ res = -EBUSY; /* what are you doing? */
+ break;
+ }
+ }
+
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ if (!res && zr->jpg_buffers.active == ZORAN_FREE)
+ zr->jpg_buffers.active = fh->buffers.active;
+
+ return res;
+}
+
+static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
+{
+ struct zoran *zr = fh->zr;
+ int res = 0;
+
+ /* Does the user want to stop streaming? */
+ if (frame < 0) {
+ if (zr->codec_mode == mode) {
+ if (fh->buffers.active == ZORAN_FREE) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(-1) - session not active\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
+ zr->jpg_buffers.allocated = 0;
+ zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
+ return 0;
+ } else {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - stop streaming but not in streaming mode\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ }
+
+ if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
+ return res;
+
+ /* Start the jpeg codec when the first frame is queued */
+ if (!res && zr->jpg_que_head == 1)
+ jpeg_start(zr);
+
+ return res;
+}
+
+/*
+ * Sync on a MJPEG buffer
+ */
+
+static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
+{
+ struct zoran *zr = fh->zr;
+ unsigned long flags;
+ int frame;
+
+ if (fh->buffers.active == ZORAN_FREE) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - capture is not currently active\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
+ zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - codec not in streaming mode\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ 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: %s - timeout: codec isr=0x%02x\n",
+ ZR_DEVNAME(zr), __func__, 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->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
+ dprintk(2,
+ KERN_ERR "%s: %s - internal state error\n",
+ ZR_DEVNAME(zr), __func__);
+
+ *bs = zr->jpg_buffers.buffer[frame].bs;
+ bs->frame = frame;
+ zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
+ fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
+
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ return 0;
+}
+
+static void zoran_open_init_session(struct zoran_fh *fh)
+{
+ int i;
+ struct zoran *zr = fh->zr;
+
+ /* Per default, map the V4L Buffers */
+ map_mode_raw(fh);
+
+ /* take over the card's current settings */
+ fh->overlay_settings = zr->overlay_settings;
+ fh->overlay_settings.is_set = 0;
+ fh->overlay_settings.format = zr->overlay_settings.format;
+ fh->overlay_active = ZORAN_FREE;
+
+ /* v4l settings */
+ fh->v4l_settings = zr->v4l_settings;
+ /* jpg settings */
+ fh->jpg_settings = zr->jpg_settings;
+
+ /* buffers */
+ memset(&fh->buffers, 0, sizeof(fh->buffers));
+ for (i = 0; i < MAX_FRAME; i++) {
+ fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
+ fh->buffers.buffer[i].bs.frame = i;
+ }
+ fh->buffers.allocated = 0;
+ fh->buffers.active = ZORAN_FREE;
+}
+
+static void zoran_close_end_session(struct zoran_fh *fh)
+{
+ struct zoran *zr = fh->zr;
+
+ /* overlay */
+ if (fh->overlay_active != ZORAN_FREE) {
+ fh->overlay_active = zr->overlay_active = ZORAN_FREE;
+ zr->v4l_overlay_active = 0;
+ if (!zr->v4l_memgrab_active)
+ zr36057_overlay(zr, 0);
+ zr->overlay_mask = NULL;
+ }
+
+ if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
+ /* v4l capture */
+ if (fh->buffers.active != ZORAN_FREE) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ zr36057_set_memgrab(zr, 0);
+ zr->v4l_buffers.allocated = 0;
+ zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+ }
+
+ /* v4l buffers */
+ if (fh->buffers.allocated)
+ v4l_fbuffer_free(fh);
+ } else {
+ /* jpg capture */
+ if (fh->buffers.active != ZORAN_FREE) {
+ zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
+ zr->jpg_buffers.allocated = 0;
+ zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
+ }
+
+ /* jpg buffers */
+ if (fh->buffers.allocated)
+ jpg_fbuffer_free(fh);
+ }
+}
+
+/*
+ * Open a zoran card. Right now the flags stuff is just playing
+ */
+
+static int zoran_open(struct file *file)
+{
+ struct zoran *zr = video_drvdata(file);
+ struct zoran_fh *fh;
+ int res, first_open = 0;
+
+ dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
+ ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
+
+ mutex_lock(&zr->other_lock);
+
+ if (zr->user >= 2048) {
+ dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
+ ZR_DEVNAME(zr), zr->user);
+ res = -EBUSY;
+ goto fail_unlock;
+ }
+
+ /* now, create the open()-specific file_ops struct */
+ fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
+ if (!fh) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - allocation of zoran_fh failed\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -ENOMEM;
+ goto fail_unlock;
+ }
+ /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
+ * on norm-change! */
+ fh->overlay_mask =
+ kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
+ if (!fh->overlay_mask) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - allocation of overlay_mask failed\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -ENOMEM;
+ goto fail_fh;
+ }
+
+ if (zr->user++ == 0)
+ first_open = 1;
+
+ /*mutex_unlock(&zr->resource_lock);*/
+
+ /* default setup - TODO: look at flags */
+ if (first_open) { /* First device open */
+ zr36057_restart(zr);
+ zoran_open_init_params(zr);
+ zoran_init_hardware(zr);
+
+ btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
+ }
+
+ /* set file_ops stuff */
+ file->private_data = fh;
+ fh->zr = zr;
+ zoran_open_init_session(fh);
+ mutex_unlock(&zr->other_lock);
+
+ return 0;
+
+fail_fh:
+ kfree(fh);
+fail_unlock:
+ mutex_unlock(&zr->other_lock);
+
+ dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
+ ZR_DEVNAME(zr), res, zr->user);
+
+ return res;
+}
+
+static int
+zoran_close(struct file *file)
+{
+ struct zoran_fh *fh = file->private_data;
+ struct zoran *zr = fh->zr;
+
+ dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
+ ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
+
+ /* kernel locks (fs/device.c), so don't do that ourselves
+ * (prevents deadlocks) */
+ mutex_lock(&zr->other_lock);
+
+ zoran_close_end_session(fh);
+
+ if (zr->user-- == 1) { /* Last process */
+ /* Clean up JPEG process */
+ wake_up_interruptible(&zr->jpg_capq);
+ zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
+ zr->jpg_buffers.allocated = 0;
+ zr->jpg_buffers.active = ZORAN_FREE;
+
+ /* disable interrupts */
+ btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
+
+ if (zr36067_debug > 1)
+ print_interrupts(zr);
+
+ /* Overlay off */
+ zr->v4l_overlay_active = 0;
+ zr36057_overlay(zr, 0);
+ zr->overlay_mask = NULL;
+
+ /* capture off */
+ wake_up_interruptible(&zr->v4l_capq);
+ zr36057_set_memgrab(zr, 0);
+ zr->v4l_buffers.allocated = 0;
+ zr->v4l_buffers.active = ZORAN_FREE;
+ zoran_set_pci_master(zr, 0);
+
+ if (!pass_through) { /* Switch to color bar */
+ decoder_call(zr, video, s_stream, 0);
+ encoder_call(zr, video, s_routing, 2, 0, 0);
+ }
+ }
+ mutex_unlock(&zr->other_lock);
+
+ file->private_data = NULL;
+ kfree(fh->overlay_mask);
+ kfree(fh);
+
+ dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
+
+ 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 zoran_fh *fh,
+ void *base,
+ const struct zoran_format *fmt,
+ int width,
+ int height,
+ int bytesperline)
+{
+ struct zoran *zr = fh->zr;
+
+ /* (Ronald) v4l/v4l2 guidelines */
+ if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+ return -EPERM;
+
+ /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
+ ALi Magik (that needs very low latency while the card needs a
+ higher value always) */
+
+ if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
+ return -ENXIO;
+
+ /* we need a bytesperline value, even if not given */
+ if (!bytesperline)
+ bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
+
+#if 0
+ if (zr->overlay_active) {
+ /* dzjee... stupid users... don't even bother to turn off
+ * overlay before changing the memory location...
+ * normally, we would return errors here. However, one of
+ * the tools that does this is... xawtv! and since xawtv
+ * is used by +/- 99% of the users, we'd rather be user-
+ * friendly and silently do as if nothing went wrong */
+ dprintk(3,
+ KERN_ERR
+ "%s: %s - forced overlay turnoff because framebuffer changed\n",
+ ZR_DEVNAME(zr), __func__);
+ zr36057_overlay(zr, 0);
+ }
+#endif
+
+ if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - no valid overlay format given\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ if (height <= 0 || width <= 0 || bytesperline <= 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
+ ZR_DEVNAME(zr), __func__, width, height, bytesperline);
+ return -EINVAL;
+ }
+ if (bytesperline & 3) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
+ ZR_DEVNAME(zr), __func__, bytesperline);
+ return -EINVAL;
+ }
+
+ zr->vbuf_base = (void *) ((unsigned long) base & ~3);
+ zr->vbuf_height = height;
+ zr->vbuf_width = width;
+ zr->vbuf_depth = fmt->depth;
+ zr->overlay_settings.format = fmt;
+ zr->vbuf_bytesperline = bytesperline;
+
+ /* The user should set new window parameters */
+ zr->overlay_settings.is_set = 0;
+
+ return 0;
+}
+
+
+static int setup_window(struct zoran_fh *fh,
+ int x,
+ int y,
+ int width,
+ int height,
+ struct v4l2_clip __user *clips,
+ unsigned int clipcount,
+ void __user *bitmap)
+{
+ struct zoran *zr = fh->zr;
+ struct v4l2_clip *vcp = NULL;
+ int on, end;
+
+
+ if (!zr->vbuf_base) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - frame buffer has to be set first\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ if (!fh->overlay_settings.format) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - no overlay format set\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ if (clipcount > 2048) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - invalid clipcount\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ /*
+ * The video front end needs 4-byte alinged line sizes, we correct that
+ * silently here if necessary
+ */
+ if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
+ end = (x + width) & ~1; /* round down */
+ x = (x + 1) & ~1; /* round up */
+ width = end - x;
+ }
+
+ if (zr->vbuf_depth == 24) {
+ end = (x + width) & ~3; /* round down */
+ x = (x + 3) & ~3; /* round up */
+ width = end - x;
+ }
+
+ if (width > BUZ_MAX_WIDTH)
+ width = BUZ_MAX_WIDTH;
+ if (height > BUZ_MAX_HEIGHT)
+ height = BUZ_MAX_HEIGHT;
+
+ /* Check for invalid parameters */
+ if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
+ width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - width = %d or height = %d invalid\n",
+ ZR_DEVNAME(zr), __func__, width, height);
+ return -EINVAL;
+ }
+
+ fh->overlay_settings.x = x;
+ fh->overlay_settings.y = y;
+ fh->overlay_settings.width = width;
+ fh->overlay_settings.height = height;
+ fh->overlay_settings.clipcount = clipcount;
+
+ /*
+ * If an overlay is running, we have to switch it off
+ * and switch it on again in order to get the new settings in effect.
+ *
+ * We also want to avoid that the overlay mask is written
+ * when an overlay is running.
+ */
+
+ on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
+ zr->overlay_active != ZORAN_FREE &&
+ fh->overlay_active != ZORAN_FREE;
+ if (on)
+ zr36057_overlay(zr, 0);
+
+ /*
+ * Write the overlay mask if clips are wanted.
+ * We prefer a bitmap.
+ */
+ if (bitmap) {
+ /* fake value - it just means we want clips */
+ fh->overlay_settings.clipcount = 1;
+
+ if (copy_from_user(fh->overlay_mask, bitmap,
+ (width * height + 7) / 8)) {
+ return -EFAULT;
+ }
+ } else if (clipcount) {
+ /* write our own bitmap from the clips */
+ vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
+ if (vcp == NULL) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - Alloc of clip mask failed\n",
+ ZR_DEVNAME(zr), __func__);
+ return -ENOMEM;
+ }
+ if (copy_from_user
+ (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
+ vfree(vcp);
+ return -EFAULT;
+ }
+ write_overlay_mask(fh, vcp, clipcount);
+ vfree(vcp);
+ }
+
+ fh->overlay_settings.is_set = 1;
+ if (fh->overlay_active != ZORAN_FREE &&
+ zr->overlay_active != ZORAN_FREE)
+ zr->overlay_settings = fh->overlay_settings;
+
+ if (on)
+ zr36057_overlay(zr, 1);
+
+ /* Make sure the changes come into effect */
+ return wait_grab_pending(zr);
+}
+
+static int setup_overlay(struct zoran_fh *fh, int on)
+{
+ struct zoran *zr = fh->zr;
+
+ /* If there is nothing to do, return immediately */
+ if ((on && fh->overlay_active != ZORAN_FREE) ||
+ (!on && fh->overlay_active == ZORAN_FREE))
+ return 0;
+
+ /* check whether we're touching someone else's overlay */
+ if (on && zr->overlay_active != ZORAN_FREE &&
+ fh->overlay_active == ZORAN_FREE) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - overlay is already active for another session\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EBUSY;
+ }
+ if (!on && zr->overlay_active != ZORAN_FREE &&
+ fh->overlay_active == ZORAN_FREE) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - you cannot cancel someone else's session\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EPERM;
+ }
+
+ if (on == 0) {
+ zr->overlay_active = fh->overlay_active = ZORAN_FREE;
+ zr->v4l_overlay_active = 0;
+ /* When a grab is running, the video simply
+ * won't be switched on any more */
+ if (!zr->v4l_memgrab_active)
+ zr36057_overlay(zr, 0);
+ zr->overlay_mask = NULL;
+ } else {
+ if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - buffer or window not set\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ if (!fh->overlay_settings.format) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - no overlay format set\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+ zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
+ zr->v4l_overlay_active = 1;
+ zr->overlay_mask = fh->overlay_mask;
+ zr->overlay_settings = fh->overlay_settings;
+ if (!zr->v4l_memgrab_active)
+ zr36057_overlay(zr, 1);
+ /* When a grab is running, the video will be
+ * switched on when grab is finished */
+ }
+
+ /* Make sure the changes come into effect */
+ return wait_grab_pending(zr);
+}
+
+/* get the status of a buffer in the clients buffer queue */
+static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
+ struct v4l2_buffer *buf, int num)
+{
+ struct zoran *zr = fh->zr;
+ unsigned long flags;
+
+ buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW:
+ /* check range */
+ if (num < 0 || num >= fh->buffers.num_buffers ||
+ !fh->buffers.allocated) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - wrong number or buffers not allocated\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ dprintk(3,
+ KERN_DEBUG
+ "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
+ ZR_DEVNAME(zr), __func__,
+ "FAL"[fh->buffers.active], num,
+ "UPMD"[zr->v4l_buffers.buffer[num].state],
+ fh->buffers.buffer[num].map ? 'Y' : 'N');
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ buf->length = fh->buffers.buffer_size;
+
+ /* get buffer */
+ buf->bytesused = fh->buffers.buffer[num].bs.length;
+ if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
+ fh->buffers.buffer[num].state == BUZ_STATE_USER) {
+ buf->sequence = fh->buffers.buffer[num].bs.seq;
+ buf->flags |= V4L2_BUF_FLAG_DONE;
+ buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
+ } else {
+ buf->flags |= V4L2_BUF_FLAG_QUEUED;
+ }
+
+ if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
+ buf->field = V4L2_FIELD_TOP;
+ else
+ buf->field = V4L2_FIELD_INTERLACED;
+
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+
+ /* check range */
+ if (num < 0 || num >= fh->buffers.num_buffers ||
+ !fh->buffers.allocated) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - wrong number or buffers not allocated\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
+ V4L2_BUF_TYPE_VIDEO_CAPTURE :
+ V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ buf->length = fh->buffers.buffer_size;
+
+ /* these variables are only written after frame has been captured */
+ if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
+ fh->buffers.buffer[num].state == BUZ_STATE_USER) {
+ buf->sequence = fh->buffers.buffer[num].bs.seq;
+ buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
+ buf->bytesused = fh->buffers.buffer[num].bs.length;
+ buf->flags |= V4L2_BUF_FLAG_DONE;
+ } else {
+ buf->flags |= V4L2_BUF_FLAG_QUEUED;
+ }
+
+ /* which fields are these? */
+ if (fh->jpg_settings.TmpDcm != 1)
+ buf->field = fh->jpg_settings.odd_even ?
+ V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
+ else
+ buf->field = fh->jpg_settings.odd_even ?
+ V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
+
+ break;
+
+ default:
+
+ dprintk(5,
+ KERN_ERR
+ "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
+ ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
+ return -EINVAL;
+ }
+
+ buf->memory = V4L2_MEMORY_MMAP;
+ buf->index = num;
+ buf->m.offset = buf->length * num;
+
+ return 0;
+}
+
+static int
+zoran_set_norm (struct zoran *zr,
+ v4l2_std_id norm)
+{
+ int on;
+
+ if (zr->v4l_buffers.active != ZORAN_FREE ||
+ zr->jpg_buffers.active != ZORAN_FREE) {
+ dprintk(1,
+ KERN_WARNING
+ "%s: %s called while in playback/capture mode\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EBUSY;
+ }
+
+ if (!(norm & zr->card.norms)) {
+ dprintk(1,
+ KERN_ERR "%s: %s - unsupported norm %llx\n",
+ ZR_DEVNAME(zr), __func__, norm);
+ return -EINVAL;
+ }
+
+ if (norm & V4L2_STD_SECAM)
+ zr->timing = zr->card.tvn[2];
+ else if (norm & V4L2_STD_NTSC)
+ zr->timing = zr->card.tvn[1];
+ else
+ zr->timing = zr->card.tvn[0];
+
+ /* We switch overlay off and on since a change in the
+ * norm needs different VFE settings */
+ on = zr->overlay_active && !zr->v4l_memgrab_active;
+ if (on)
+ zr36057_overlay(zr, 0);
+
+ decoder_call(zr, video, s_std, norm);
+ encoder_call(zr, video, s_std_output, norm);
+
+ if (on)
+ zr36057_overlay(zr, 1);
+
+ /* Make sure the changes come into effect */
+ zr->norm = norm;
+
+ return 0;
+}
+
+static int
+zoran_set_input (struct zoran *zr,
+ int input)
+{
+ if (input == zr->input) {
+ return 0;
+ }
+
+ if (zr->v4l_buffers.active != ZORAN_FREE ||
+ zr->jpg_buffers.active != ZORAN_FREE) {
+ dprintk(1,
+ KERN_WARNING
+ "%s: %s called while in playback/capture mode\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EBUSY;
+ }
+
+ if (input < 0 || input >= zr->card.inputs) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - unnsupported input %d\n",
+ ZR_DEVNAME(zr), __func__, input);
+ return -EINVAL;
+ }
+
+ zr->input = input;
+
+ decoder_call(zr, video, s_routing,
+ zr->card.input[input].muxsel, 0, 0);
+
+ return 0;
+}
+
+/*
+ * ioctl routine
+ */
+
+static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ memset(cap, 0, sizeof(*cap));
+ strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
+ strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
+ snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
+ pci_name(zr->pci_dev));
+ cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+ return 0;
+}
+
+static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
+{
+ unsigned int num, i;
+
+ for (num = i = 0; i < NUM_FORMATS; i++) {
+ if (zoran_formats[i].flags & flag && num++ == fmt->index) {
+ strncpy(fmt->description, zoran_formats[i].name,
+ sizeof(fmt->description) - 1);
+ /* fmt struct pre-zeroed, so adding '\0' not needed */
+ fmt->pixelformat = zoran_formats[i].fourcc;
+ if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
+ fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
+}
+
+static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
+}
+
+static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
+}
+
+static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ mutex_lock(&zr->resource_lock);
+
+ fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
+ fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
+ (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
+ fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
+ fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
+ if (fh->jpg_settings.TmpDcm == 1)
+ fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
+ V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
+ else
+ fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
+ V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
+ fmt->fmt.pix.bytesperline = 0;
+ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ if (fh->map_mode != ZORAN_MAP_MODE_RAW)
+ return zoran_g_fmt_vid_out(file, fh, fmt);
+
+ mutex_lock(&zr->resource_lock);
+ fmt->fmt.pix.width = fh->v4l_settings.width;
+ fmt->fmt.pix.height = fh->v4l_settings.height;
+ fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
+ fh->v4l_settings.height;
+ fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
+ fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
+ fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
+ if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
+ fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ else
+ fmt->fmt.pix.field = V4L2_FIELD_TOP;
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ mutex_lock(&zr->resource_lock);
+
+ fmt->fmt.win.w.left = fh->overlay_settings.x;
+ fmt->fmt.win.w.top = fh->overlay_settings.y;
+ fmt->fmt.win.w.width = fh->overlay_settings.width;
+ fmt->fmt.win.w.height = fh->overlay_settings.height;
+ if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
+ fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
+ else
+ fmt->fmt.win.field = V4L2_FIELD_TOP;
+
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
+ fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
+ if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
+ fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
+ if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
+ fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
+ if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
+ fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
+
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ struct zoran_jpg_settings settings;
+ int res = 0;
+
+ if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
+ return -EINVAL;
+
+ mutex_lock(&zr->resource_lock);
+ settings = fh->jpg_settings;
+
+ /* we actually need to set 'real' parameters now */
+ if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
+ settings.TmpDcm = 1;
+ else
+ settings.TmpDcm = 2;
+ settings.decimation = 0;
+ if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
+ settings.VerDcm = 2;
+ else
+ settings.VerDcm = 1;
+ if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
+ settings.HorDcm = 4;
+ else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
+ settings.HorDcm = 2;
+ else
+ settings.HorDcm = 1;
+ if (settings.TmpDcm == 1)
+ settings.field_per_buff = 2;
+ else
+ settings.field_per_buff = 1;
+
+ if (settings.HorDcm > 1) {
+ settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
+ settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
+ } else {
+ settings.img_x = 0;
+ settings.img_width = BUZ_MAX_WIDTH;
+ }
+
+ /* check */
+ res = zoran_check_jpg_settings(zr, &settings, 1);
+ if (res)
+ 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);
+ fmt->fmt.pix.bytesperline = 0;
+ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+tryfmt_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int bpp;
+ int i;
+
+ if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
+ return zoran_try_fmt_vid_out(file, fh, fmt);
+
+ mutex_lock(&zr->resource_lock);
+
+ for (i = 0; i < NUM_FORMATS; i++)
+ if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
+ break;
+
+ if (i == NUM_FORMATS) {
+ mutex_unlock(&zr->resource_lock);
+ return -EINVAL;
+ }
+
+ bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
+ v4l_bound_align_image(
+ &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
+ &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
+ mutex_unlock(&zr->resource_lock);
+
+ return 0;
+}
+
+static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res;
+
+ dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
+ fmt->fmt.win.w.left, fmt->fmt.win.w.top,
+ fmt->fmt.win.w.width,
+ fmt->fmt.win.w.height,
+ fmt->fmt.win.clipcount,
+ fmt->fmt.win.bitmap);
+ mutex_lock(&zr->resource_lock);
+ res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
+ fmt->fmt.win.w.width, fmt->fmt.win.w.height,
+ (struct v4l2_clip __user *)fmt->fmt.win.clips,
+ fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
+ struct zoran_jpg_settings settings;
+ int res = 0;
+
+ dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
+ fmt->fmt.pix.width, fmt->fmt.pix.height,
+ fmt->fmt.pix.pixelformat,
+ (char *) &printformat);
+ if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
+ return -EINVAL;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (fh->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;
+ }
+
+ settings = fh->jpg_settings;
+
+ /* we actually need to set 'real' parameters now */
+ if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
+ settings.TmpDcm = 1;
+ else
+ settings.TmpDcm = 2;
+ settings.decimation = 0;
+ if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
+ settings.VerDcm = 2;
+ else
+ settings.VerDcm = 1;
+ if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
+ settings.HorDcm = 4;
+ else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
+ settings.HorDcm = 2;
+ else
+ settings.HorDcm = 1;
+ if (settings.TmpDcm == 1)
+ settings.field_per_buff = 2;
+ else
+ settings.field_per_buff = 1;
+
+ if (settings.HorDcm > 1) {
+ settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
+ settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
+ } else {
+ settings.img_x = 0;
+ settings.img_width = BUZ_MAX_WIDTH;
+ }
+
+ /* check */
+ res = zoran_check_jpg_settings(zr, &settings, 0);
+ if (res)
+ goto sfmtjpg_unlock_and_return;
+
+ /* it's ok, so set them */
+ fh->jpg_settings = settings;
+
+ map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
+
+ /* tell the user what we actually did */
+ fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
+ fmt->fmt.pix.height = settings.img_height * 2 /
+ (settings.TmpDcm * settings.VerDcm);
+ if (settings.TmpDcm == 1)
+ fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
+ V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
+ else
+ fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
+ V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
+ fmt->fmt.pix.bytesperline = 0;
+ fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
+ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+sfmtjpg_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *fmt)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int i;
+ int res = 0;
+
+ if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
+ return zoran_s_fmt_vid_out(file, fh, fmt);
+
+ for (i = 0; i < NUM_FORMATS; i++)
+ if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
+ break;
+ if (i == NUM_FORMATS) {
+ dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
+ ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ mutex_lock(&zr->resource_lock);
+
+ if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
+ fh->buffers.active != ZORAN_FREE) {
+ dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
+ ZR_DEVNAME(zr));
+ res = -EBUSY;
+ 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;
+
+ map_mode_raw(fh);
+
+ res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
+ &zoran_formats[i]);
+ if (res)
+ goto sfmtv4l_unlock_and_return;
+
+ /* tell the user the results/missing stuff */
+ fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
+ fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
+ fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
+ if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
+ fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ else
+ fmt->fmt.pix.field = V4L2_FIELD_TOP;
+
+sfmtv4l_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_g_fbuf(struct file *file, void *__fh,
+ struct v4l2_framebuffer *fb)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ memset(fb, 0, sizeof(*fb));
+ mutex_lock(&zr->resource_lock);
+ fb->base = zr->vbuf_base;
+ fb->fmt.width = zr->vbuf_width;
+ fb->fmt.height = zr->vbuf_height;
+ if (zr->overlay_settings.format)
+ fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
+ fb->fmt.bytesperline = zr->vbuf_bytesperline;
+ mutex_unlock(&zr->resource_lock);
+ fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
+ fb->fmt.field = V4L2_FIELD_INTERLACED;
+ fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
+
+ return 0;
+}
+
+static int zoran_s_fbuf(struct file *file, void *__fh,
+ const struct v4l2_framebuffer *fb)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int i, res = 0;
+ __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
+
+ for (i = 0; i < NUM_FORMATS; i++)
+ if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
+ break;
+ if (i == NUM_FORMATS) {
+ dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
+ ZR_DEVNAME(zr), fb->fmt.pixelformat,
+ (char *)&printformat);
+ return -EINVAL;
+ }
+
+ mutex_lock(&zr->resource_lock);
+ res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
+ fb->fmt.height, fb->fmt.bytesperline);
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res;
+
+ mutex_lock(&zr->resource_lock);
+ res = setup_overlay(fh, on);
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
+
+static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0;
+
+ if (req->memory != V4L2_MEMORY_MMAP) {
+ dprintk(2,
+ KERN_ERR
+ "%s: only MEMORY_MMAP capture is supported, not %d\n",
+ ZR_DEVNAME(zr), req->memory);
+ return -EINVAL;
+ }
+
+ if (req->count == 0)
+ return zoran_streamoff(file, fh, req->type);
+
+ mutex_lock(&zr->resource_lock);
+ if (fh->buffers.allocated) {
+ dprintk(2,
+ KERN_ERR
+ "%s: VIDIOC_REQBUFS - buffers already 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;
+
+ /* The next mmap will map the V4L buffers */
+ map_mode_raw(fh);
+ fh->buffers.num_buffers = req->count;
+
+ if (v4l_fbuffer_alloc(fh)) {
+ res = -ENOMEM;
+ goto v4l2reqbuf_unlock_and_return;
+ }
+ } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
+ fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
+ /* we need to calculate size ourselves now */
+ if (req->count < 4)
+ req->count = 4;
+ if (req->count > jpg_nbufs)
+ req->count = jpg_nbufs;
+
+ /* The next mmap will map the MJPEG buffers */
+ map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ fh->buffers.num_buffers = req->count;
+ fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
+
+ if (jpg_fbuffer_alloc(fh)) {
+ res = -ENOMEM;
+ goto v4l2reqbuf_unlock_and_return;
+ }
+ } else {
+ dprintk(1,
+ KERN_ERR
+ "%s: VIDIOC_REQBUFS - unknown type %d\n",
+ ZR_DEVNAME(zr), req->type);
+ res = -EINVAL;
+ goto v4l2reqbuf_unlock_and_return;
+ }
+v4l2reqbuf_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res;
+
+ mutex_lock(&zr->resource_lock);
+ res = zoran_v4l2_buffer_status(fh, buf, buf->index);
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0, codec_mode, buf_type;
+
+ mutex_lock(&zr->resource_lock);
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW:
+ if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
+ ZR_DEVNAME(zr), buf->type, fh->map_mode);
+ res = -EINVAL;
+ goto qbuf_unlock_and_return;
+ }
+
+ res = zoran_v4l_queue_frame(fh, buf->index);
+ if (res)
+ goto qbuf_unlock_and_return;
+ if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
+ zr36057_set_memgrab(zr, 1);
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+ if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
+ buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
+ } else {
+ buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ codec_mode = BUZ_MODE_MOTION_COMPRESS;
+ }
+
+ if (buf->type != buf_type) {
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
+ ZR_DEVNAME(zr), buf->type, fh->map_mode);
+ res = -EINVAL;
+ goto qbuf_unlock_and_return;
+ }
+
+ res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
+ if (res != 0)
+ goto qbuf_unlock_and_return;
+ if (zr->codec_mode == BUZ_MODE_IDLE &&
+ fh->buffers.active == ZORAN_LOCKED)
+ zr36057_enable_jpg(zr, codec_mode);
+
+ break;
+
+ default:
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_QBUF - unsupported type %d\n",
+ ZR_DEVNAME(zr), buf->type);
+ res = -EINVAL;
+ break;
+ }
+qbuf_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0, buf_type, num = -1; /* compiler borks here (?) */
+
+ mutex_lock(&zr->resource_lock);
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW:
+ if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
+ ZR_DEVNAME(zr), buf->type, fh->map_mode);
+ res = -EINVAL;
+ goto dqbuf_unlock_and_return;
+ }
+
+ num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
+ if (file->f_flags & O_NONBLOCK &&
+ zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
+ res = -EAGAIN;
+ goto dqbuf_unlock_and_return;
+ }
+ res = v4l_sync(fh, num);
+ if (res)
+ goto dqbuf_unlock_and_return;
+ zr->v4l_sync_tail++;
+ res = zoran_v4l2_buffer_status(fh, buf, num);
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+ {
+ struct zoran_sync bs;
+
+ if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
+ buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ else
+ buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ if (buf->type != buf_type) {
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
+ ZR_DEVNAME(zr), buf->type, fh->map_mode);
+ res = -EINVAL;
+ 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;
+ }
+ bs.frame = 0; /* suppress compiler warning */
+ res = jpg_sync(fh, &bs);
+ if (res)
+ goto dqbuf_unlock_and_return;
+ res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
+ break;
+ }
+
+ default:
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_DQBUF - unsupported type %d\n",
+ ZR_DEVNAME(zr), buf->type);
+ res = -EINVAL;
+ break;
+ }
+dqbuf_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0;
+
+ mutex_lock(&zr->resource_lock);
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW: /* raw capture */
+ if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
+ fh->buffers.active != ZORAN_ACTIVE) {
+ res = -EBUSY;
+ goto strmon_unlock_and_return;
+ }
+
+ zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
+ zr->v4l_settings = fh->v4l_settings;
+
+ zr->v4l_sync_tail = zr->v4l_pend_tail;
+ if (!zr->v4l_memgrab_active &&
+ zr->v4l_pend_head != zr->v4l_pend_tail) {
+ zr36057_set_memgrab(zr, 1);
+ }
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+ /* what is the codec mode right now? */
+ if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
+ fh->buffers.active != ZORAN_ACTIVE) {
+ res = -EBUSY;
+ goto strmon_unlock_and_return;
+ }
+
+ zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
+
+ if (zr->jpg_que_head != zr->jpg_que_tail) {
+ /* Start the jpeg codec when the first frame is queued */
+ jpeg_start(zr);
+ }
+ break;
+
+ default:
+ dprintk(1,
+ KERN_ERR
+ "%s: VIDIOC_STREAMON - invalid map mode %d\n",
+ ZR_DEVNAME(zr), fh->map_mode);
+ res = -EINVAL;
+ break;
+ }
+strmon_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int i, res = 0;
+ unsigned long flags;
+
+ mutex_lock(&zr->resource_lock);
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW: /* raw capture */
+ if (fh->buffers.active == ZORAN_FREE &&
+ zr->v4l_buffers.active != ZORAN_FREE) {
+ res = -EPERM; /* stay off other's settings! */
+ goto strmoff_unlock_and_return;
+ }
+ if (zr->v4l_buffers.active == ZORAN_FREE)
+ goto strmoff_unlock_and_return;
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ /* unload capture */
+ if (zr->v4l_memgrab_active) {
+
+ zr36057_set_memgrab(zr, 0);
+ }
+
+ for (i = 0; i < fh->buffers.num_buffers; i++)
+ zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
+ fh->buffers = zr->v4l_buffers;
+
+ zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
+
+ zr->v4l_grab_seq = 0;
+ zr->v4l_pend_head = zr->v4l_pend_tail = 0;
+ zr->v4l_sync_tail = 0;
+
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+ if (fh->buffers.active == ZORAN_FREE &&
+ zr->jpg_buffers.active != ZORAN_FREE) {
+ res = -EPERM; /* stay off other's settings! */
+ goto strmoff_unlock_and_return;
+ }
+ if (zr->jpg_buffers.active == ZORAN_FREE)
+ goto strmoff_unlock_and_return;
+
+ res = jpg_qbuf(fh, -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;
+ break;
+ }
+strmoff_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_queryctrl(struct file *file, void *__fh,
+ struct v4l2_queryctrl *ctrl)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ /* we only support hue/saturation/contrast/brightness */
+ if (ctrl->id < V4L2_CID_BRIGHTNESS ||
+ ctrl->id > V4L2_CID_HUE)
+ return -EINVAL;
+
+ decoder_call(zr, core, queryctrl, ctrl);
+
+ return 0;
+}
+
+static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ /* we only support hue/saturation/contrast/brightness */
+ if (ctrl->id < V4L2_CID_BRIGHTNESS ||
+ ctrl->id > V4L2_CID_HUE)
+ return -EINVAL;
+
+ mutex_lock(&zr->resource_lock);
+ decoder_call(zr, core, g_ctrl, ctrl);
+ mutex_unlock(&zr->resource_lock);
+
+ return 0;
+}
+
+static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ /* we only support hue/saturation/contrast/brightness */
+ if (ctrl->id < V4L2_CID_BRIGHTNESS ||
+ ctrl->id > V4L2_CID_HUE)
+ return -EINVAL;
+
+ mutex_lock(&zr->resource_lock);
+ decoder_call(zr, core, s_ctrl, ctrl);
+ mutex_unlock(&zr->resource_lock);
+
+ return 0;
+}
+
+static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ mutex_lock(&zr->resource_lock);
+ *std = zr->norm;
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0;
+
+ mutex_lock(&zr->resource_lock);
+ res = zoran_set_norm(zr, std);
+ if (res)
+ goto sstd_unlock_and_return;
+
+ res = wait_grab_pending(zr);
+sstd_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_enum_input(struct file *file, void *__fh,
+ struct v4l2_input *inp)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ if (inp->index >= zr->card.inputs)
+ return -EINVAL;
+
+ strncpy(inp->name, zr->card.input[inp->index].name,
+ sizeof(inp->name) - 1);
+ inp->type = V4L2_INPUT_TYPE_CAMERA;
+ inp->std = V4L2_STD_ALL;
+
+ /* Get status of video decoder */
+ mutex_lock(&zr->resource_lock);
+ decoder_call(zr, video, g_input_status, &inp->status);
+ mutex_unlock(&zr->resource_lock);
+ return 0;
+}
+
+static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+
+ mutex_lock(&zr->resource_lock);
+ *input = zr->input;
+ mutex_unlock(&zr->resource_lock);
+
+ return 0;
+}
+
+static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res;
+
+ mutex_lock(&zr->resource_lock);
+ res = zoran_set_input(zr, input);
+ if (res)
+ goto sinput_unlock_and_return;
+
+ /* Make sure the changes come into effect */
+ res = wait_grab_pending(zr);
+sinput_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_enum_output(struct file *file, void *__fh,
+ struct v4l2_output *outp)
+{
+ if (outp->index != 0)
+ return -EINVAL;
+
+ outp->index = 0;
+ outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
+ strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
+
+ return 0;
+}
+
+static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
+{
+ *output = 0;
+
+ return 0;
+}
+
+static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
+{
+ if (output != 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* cropping (sub-frame capture) */
+static int zoran_cropcap(struct file *file, void *__fh,
+ struct v4l2_cropcap *cropcap)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int type = cropcap->type, res = 0;
+
+ memset(cropcap, 0, sizeof(*cropcap));
+ cropcap->type = type;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+ (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ fh->map_mode == ZORAN_MAP_MODE_RAW)) {
+ dprintk(1, KERN_ERR
+ "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
+ ZR_DEVNAME(zr));
+ res = -EINVAL;
+ goto cropcap_unlock_and_return;
+ }
+
+ cropcap->bounds.top = cropcap->bounds.left = 0;
+ cropcap->bounds.width = BUZ_MAX_WIDTH;
+ cropcap->bounds.height = BUZ_MAX_HEIGHT;
+ cropcap->defrect.top = cropcap->defrect.left = 0;
+ cropcap->defrect.width = BUZ_MIN_WIDTH;
+ cropcap->defrect.height = BUZ_MIN_HEIGHT;
+cropcap_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int type = crop->type, res = 0;
+
+ memset(crop, 0, sizeof(*crop));
+ crop->type = type;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+ (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ fh->map_mode == ZORAN_MAP_MODE_RAW)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
+ ZR_DEVNAME(zr));
+ res = -EINVAL;
+ goto gcrop_unlock_and_return;
+ }
+
+ crop->c.top = fh->jpg_settings.img_y;
+ crop->c.left = fh->jpg_settings.img_x;
+ crop->c.width = fh->jpg_settings.img_width;
+ crop->c.height = fh->jpg_settings.img_height;
+
+gcrop_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *crop)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0;
+ struct zoran_jpg_settings settings;
+
+ settings = fh->jpg_settings;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (fh->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 */
+ res = zoran_check_jpg_settings(zr, &settings, 0);
+ if (res)
+ goto scrop_unlock_and_return;
+
+ /* accept */
+ fh->jpg_settings = settings;
+
+scrop_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+ return res;
+}
+
+static int zoran_g_jpegcomp(struct file *file, void *__fh,
+ struct v4l2_jpegcompression *params)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ memset(params, 0, sizeof(*params));
+
+ mutex_lock(&zr->resource_lock);
+
+ params->quality = fh->jpg_settings.jpg_comp.quality;
+ params->APPn = fh->jpg_settings.jpg_comp.APPn;
+ memcpy(params->APP_data,
+ fh->jpg_settings.jpg_comp.APP_data,
+ fh->jpg_settings.jpg_comp.APP_len);
+ params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
+ memcpy(params->COM_data,
+ fh->jpg_settings.jpg_comp.COM_data,
+ fh->jpg_settings.jpg_comp.COM_len);
+ params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
+ params->jpeg_markers =
+ fh->jpg_settings.jpg_comp.jpeg_markers;
+
+ mutex_unlock(&zr->resource_lock);
+
+ return 0;
+}
+
+static int zoran_s_jpegcomp(struct file *file, void *__fh,
+ const struct v4l2_jpegcompression *params)
+{
+ struct zoran_fh *fh = __fh;
+ struct zoran *zr = fh->zr;
+ int res = 0;
+ struct zoran_jpg_settings settings;
+
+ settings = fh->jpg_settings;
+
+ settings.jpg_comp = *params;
+
+ mutex_lock(&zr->resource_lock);
+
+ if (fh->buffers.active != ZORAN_FREE) {
+ dprintk(1, KERN_WARNING
+ "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
+ ZR_DEVNAME(zr));
+ res = -EBUSY;
+ goto sjpegc_unlock_and_return;
+ }
+
+ res = zoran_check_jpg_settings(zr, &settings, 0);
+ if (res)
+ goto sjpegc_unlock_and_return;
+ if (!fh->buffers.allocated)
+ fh->buffers.buffer_size =
+ zoran_v4l2_calc_bufsize(&fh->jpg_settings);
+ fh->jpg_settings.jpg_comp = settings.jpg_comp;
+sjpegc_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static unsigned int
+zoran_poll (struct file *file,
+ poll_table *wait)
+{
+ struct zoran_fh *fh = file->private_data;
+ struct zoran *zr = fh->zr;
+ int res = 0, frame;
+ unsigned long flags;
+
+ /* we should check whether buffers are ready to be synced on
+ * (w/o waits - O_NONBLOCK) here
+ * if ready for read (sync), return POLLIN|POLLRDNORM,
+ * if ready for write (sync), return POLLOUT|POLLWRNORM,
+ * if error, return POLLERR,
+ * if no buffers queued or so, return POLLNVAL
+ */
+
+ mutex_lock(&zr->resource_lock);
+
+ switch (fh->map_mode) {
+ case ZORAN_MAP_MODE_RAW:
+ poll_wait(file, &zr->v4l_capq, wait);
+ frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ dprintk(3,
+ KERN_DEBUG
+ "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
+ ZR_DEVNAME(zr), __func__,
+ "FAL"[fh->buffers.active], zr->v4l_sync_tail,
+ "UPMD"[zr->v4l_buffers.buffer[frame].state],
+ zr->v4l_pend_tail, zr->v4l_pend_head);
+ /* Process is the one capturing? */
+ if (fh->buffers.active != ZORAN_FREE &&
+ /* Buffer ready to DQBUF? */
+ zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
+ res = POLLIN | POLLRDNORM;
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ break;
+
+ case ZORAN_MAP_MODE_JPG_REC:
+ case ZORAN_MAP_MODE_JPG_PLAY:
+ poll_wait(file, &zr->jpg_capq, wait);
+ frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ dprintk(3,
+ KERN_DEBUG
+ "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
+ ZR_DEVNAME(zr), __func__,
+ "FAL"[fh->buffers.active], zr->jpg_que_tail,
+ "UPMD"[zr->jpg_buffers.buffer[frame].state],
+ zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
+ if (fh->buffers.active != ZORAN_FREE &&
+ zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
+ if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
+ res = POLLIN | POLLRDNORM;
+ else
+ res = POLLOUT | POLLWRNORM;
+ }
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+
+ break;
+
+ default:
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - internal error, unknown map_mode=%d\n",
+ ZR_DEVNAME(zr), __func__, fh->map_mode);
+ res = POLLNVAL;
+ }
+
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+
+/*
+ * This maps the buffers to user space.
+ *
+ * Depending on the state of fh->map_mode
+ * the V4L or the MJPEG buffers are mapped
+ * per buffer or all together
+ *
+ * Note that we need to connect to some
+ * unmap signal event to unmap the de-allocate
+ * the buffer accordingly (zoran_vm_close())
+ */
+
+static void
+zoran_vm_open (struct vm_area_struct *vma)
+{
+ struct zoran_mapping *map = vma->vm_private_data;
+ atomic_inc(&map->count);
+}
+
+static void
+zoran_vm_close (struct vm_area_struct *vma)
+{
+ struct zoran_mapping *map = vma->vm_private_data;
+ struct zoran_fh *fh = map->fh;
+ struct zoran *zr = fh->zr;
+ int i;
+
+ if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock))
+ return;
+
+ dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
+ __func__, mode_name(fh->map_mode));
+
+ for (i = 0; i < fh->buffers.num_buffers; i++) {
+ if (fh->buffers.buffer[i].map == map)
+ fh->buffers.buffer[i].map = NULL;
+ }
+ kfree(map);
+
+ /* Any buffers still mapped? */
+ for (i = 0; i < fh->buffers.num_buffers; i++) {
+ if (fh->buffers.buffer[i].map) {
+ mutex_unlock(&zr->resource_lock);
+ return;
+ }
+ }
+
+ dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
+ __func__, mode_name(fh->map_mode));
+
+
+ if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
+ if (fh->buffers.active != ZORAN_FREE) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&zr->spinlock, flags);
+ zr36057_set_memgrab(zr, 0);
+ zr->v4l_buffers.allocated = 0;
+ zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
+ spin_unlock_irqrestore(&zr->spinlock, flags);
+ }
+ v4l_fbuffer_free(fh);
+ } else {
+ if (fh->buffers.active != ZORAN_FREE) {
+ jpg_qbuf(fh, -1, zr->codec_mode);
+ zr->jpg_buffers.allocated = 0;
+ zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
+ }
+ jpg_fbuffer_free(fh);
+ }
+
+ mutex_unlock(&zr->resource_lock);
+}
+
+static const struct vm_operations_struct zoran_vm_ops = {
+ .open = zoran_vm_open,
+ .close = zoran_vm_close,
+};
+
+static int
+zoran_mmap (struct file *file,
+ struct vm_area_struct *vma)
+{
+ struct zoran_fh *fh = file->private_data;
+ struct zoran *zr = fh->zr;
+ unsigned long size = (vma->vm_end - vma->vm_start);
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+ int i, j;
+ unsigned long page, start = vma->vm_start, todo, pos, fraglen;
+ int first, last;
+ struct zoran_mapping *map;
+ int res = 0;
+
+ dprintk(3,
+ KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
+ ZR_DEVNAME(zr), __func__,
+ mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
+
+ if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
+ !(vma->vm_flags & VM_WRITE)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
+ ZR_DEVNAME(zr), __func__);
+ return -EINVAL;
+ }
+
+ mutex_lock(&zr->resource_lock);
+
+ if (!fh->buffers.allocated) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(%s) - buffers not yet allocated\n",
+ ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
+ res = -ENOMEM;
+ goto mmap_unlock_and_return;
+ }
+
+ first = offset / fh->buffers.buffer_size;
+ last = first - 1 + size / fh->buffers.buffer_size;
+ if (offset % fh->buffers.buffer_size != 0 ||
+ size % fh->buffers.buffer_size != 0 || first < 0 ||
+ last < 0 || first >= fh->buffers.num_buffers ||
+ last >= fh->buffers.buffer_size) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
+ ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
+ fh->buffers.buffer_size,
+ fh->buffers.num_buffers);
+ res = -EINVAL;
+ goto mmap_unlock_and_return;
+ }
+
+ /* Check if any buffers are already mapped */
+ for (i = first; i <= last; i++) {
+ if (fh->buffers.buffer[i].map) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(%s) - buffer %d already mapped\n",
+ ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
+ res = -EBUSY;
+ goto mmap_unlock_and_return;
+ }
+ }
+
+ /* map these buffers */
+ map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
+ if (!map) {
+ res = -ENOMEM;
+ goto mmap_unlock_and_return;
+ }
+ map->fh = fh;
+ atomic_set(&map->count, 1);
+
+ vma->vm_ops = &zoran_vm_ops;
+ vma->vm_flags |= VM_DONTEXPAND;
+ vma->vm_private_data = map;
+
+ if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
+ for (i = first; i <= last; i++) {
+ todo = size;
+ if (todo > fh->buffers.buffer_size)
+ todo = fh->buffers.buffer_size;
+ page = fh->buffers.buffer[i].v4l.fbuffer_phys;
+ if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
+ todo, PAGE_SHARED)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(V4L) - remap_pfn_range failed\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -EAGAIN;
+ goto mmap_unlock_and_return;
+ }
+ size -= todo;
+ start += todo;
+ fh->buffers.buffer[i].map = map;
+ if (size == 0)
+ break;
+ }
+ } else {
+ for (i = first; i <= last; i++) {
+ for (j = 0;
+ j < fh->buffers.buffer_size / PAGE_SIZE;
+ j++) {
+ fraglen =
+ (le32_to_cpu(fh->buffers.buffer[i].jpg.
+ frag_tab[2 * j + 1]) & ~1) << 1;
+ todo = size;
+ if (todo > fraglen)
+ todo = fraglen;
+ pos =
+ le32_to_cpu(fh->buffers.
+ buffer[i].jpg.frag_tab[2 * j]);
+ /* should just be pos on i386 */
+ page = virt_to_phys(bus_to_virt(pos))
+ >> PAGE_SHIFT;
+ if (remap_pfn_range(vma, start, page,
+ todo, PAGE_SHARED)) {
+ dprintk(1,
+ KERN_ERR
+ "%s: %s(V4L) - remap_pfn_range failed\n",
+ ZR_DEVNAME(zr), __func__);
+ res = -EAGAIN;
+ goto mmap_unlock_and_return;
+ }
+ size -= todo;
+ start += todo;
+ if (size == 0)
+ break;
+ if (le32_to_cpu(fh->buffers.buffer[i].jpg.
+ frag_tab[2 * j + 1]) & 1)
+ break; /* was last fragment */
+ }
+ fh->buffers.buffer[i].map = map;
+ if (size == 0)
+ break;
+
+ }
+ }
+
+mmap_unlock_and_return:
+ mutex_unlock(&zr->resource_lock);
+
+ return res;
+}
+
+static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
+ .vidioc_querycap = zoran_querycap,
+ .vidioc_cropcap = zoran_cropcap,
+ .vidioc_s_crop = zoran_s_crop,
+ .vidioc_g_crop = zoran_g_crop,
+ .vidioc_enum_input = zoran_enum_input,
+ .vidioc_g_input = zoran_g_input,
+ .vidioc_s_input = zoran_s_input,
+ .vidioc_enum_output = zoran_enum_output,
+ .vidioc_g_output = zoran_g_output,
+ .vidioc_s_output = zoran_s_output,
+ .vidioc_g_fbuf = zoran_g_fbuf,
+ .vidioc_s_fbuf = zoran_s_fbuf,
+ .vidioc_g_std = zoran_g_std,
+ .vidioc_s_std = zoran_s_std,
+ .vidioc_g_jpegcomp = zoran_g_jpegcomp,
+ .vidioc_s_jpegcomp = zoran_s_jpegcomp,
+ .vidioc_overlay = zoran_overlay,
+ .vidioc_reqbufs = zoran_reqbufs,
+ .vidioc_querybuf = zoran_querybuf,
+ .vidioc_qbuf = zoran_qbuf,
+ .vidioc_dqbuf = zoran_dqbuf,
+ .vidioc_streamon = zoran_streamon,
+ .vidioc_streamoff = zoran_streamoff,
+ .vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap,
+ .vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out,
+ .vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay,
+ .vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap,
+ .vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out,
+ .vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay,
+ .vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap,
+ .vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out,
+ .vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay,
+ .vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap,
+ .vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out,
+ .vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay,
+ .vidioc_queryctrl = zoran_queryctrl,
+ .vidioc_s_ctrl = zoran_s_ctrl,
+ .vidioc_g_ctrl = zoran_g_ctrl,
+};
+
+/* please use zr->resource_lock consistently and kill this wrapper */
+static long zoran_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct zoran_fh *fh = file->private_data;
+ struct zoran *zr = fh->zr;
+ int ret;
+
+ mutex_lock(&zr->other_lock);
+ ret = video_ioctl2(file, cmd, arg);
+ mutex_unlock(&zr->other_lock);
+
+ return ret;
+}
+
+static const struct v4l2_file_operations zoran_fops = {
+ .owner = THIS_MODULE,
+ .open = zoran_open,
+ .release = zoran_close,
+ .unlocked_ioctl = zoran_ioctl,
+ .read = zoran_read,
+ .write = zoran_write,
+ .mmap = zoran_mmap,
+ .poll = zoran_poll,
+};
+
+struct video_device zoran_template = {
+ .name = ZORAN_NAME,
+ .fops = &zoran_fops,
+ .ioctl_ops = &zoran_ioctl_ops,
+ .release = &zoran_vdev_release,
+ .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
+};
+
Code Review / kvmfornfv.git / blobdiff