diff options
Diffstat (limited to 'drivers/media/video/zoran_driver.c')
| -rw-r--r-- | drivers/media/video/zoran_driver.c | 4651 |
1 files changed, 0 insertions, 4651 deletions
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c deleted file mode 100644 index ec6f59674b10..000000000000 --- a/drivers/media/video/zoran_driver.c +++ /dev/null @@ -1,4651 +0,0 @@ -/* - * Zoran zr36057/zr36067 PCI controller driver, for the - * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux - * Media Labs LML33/LML33R10. - * - * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> - * - * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> - * - * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> - * - * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> - * - * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * Based on - * - * Miro DC10 driver - * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> - * - * Iomega Buz driver version 1.0 - * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> - * - * buz.0.0.3 - * Copyright (C) 1998 Dave Perks <dperks@ibm.net> - * - * bttv - Bt848 frame grabber driver - * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) - * & Marcus Metzler (mocm@thp.uni-koeln.de) - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/version.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/vmalloc.h> -#include <linux/wait.h> - -#include <linux/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_VID_TYPE ( \ - VID_TYPE_CAPTURE | \ - VID_TYPE_OVERLAY | \ - VID_TYPE_CLIPPING | \ - VID_TYPE_FRAMERAM | \ - VID_TYPE_SCALES | \ - VID_TYPE_MJPEG_DECODER | \ - VID_TYPE_MJPEG_ENCODER \ - ) - -#include <linux/videodev.h> -#include <media/v4l2-common.h> -#include <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/video_decoder.h> -#include <linux/video_encoder.h> -#include <linux/mutex.h> -#include "zoran.h" -#include "zoran_device.h" -#include "zoran_card.h" - - /* 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 \ - ) - - -#if defined(CONFIG_VIDEO_V4L1_COMPAT) -#define ZFMT(pal, fcc, cs) \ - .palette = (pal), .fourcc = (fcc), .colorspace = (cs) -#else -#define ZFMT(pal, fcc, cs) \ - .fourcc = (fcc), .colorspace = (cs) -#endif - -const struct zoran_format zoran_formats[] = { - { - .name = "15-bit RGB LE", - ZFMT(VIDEO_PALETTE_RGB555, - V4L2_PIX_FMT_RGB555, 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", - ZFMT(-1, - V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB), - .depth = 15, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, - }, { - .name = "16-bit RGB LE", - ZFMT(VIDEO_PALETTE_RGB565, - V4L2_PIX_FMT_RGB565, 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", - ZFMT(-1, - V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB), - .depth = 16, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, - }, { - .name = "24-bit RGB", - ZFMT(VIDEO_PALETTE_RGB24, - V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB), - .depth = 24, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, - }, { - .name = "32-bit RGB LE", - ZFMT(VIDEO_PALETTE_RGB32, - V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB), - .depth = 32, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, - }, { - .name = "32-bit RGB BE", - ZFMT(-1, - V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB), - .depth = 32, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_RGB888, - }, { - .name = "4:2:2, packed, YUYV", - ZFMT(VIDEO_PALETTE_YUV422, - V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M), - .depth = 16, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_YUV422, - }, { - .name = "4:2:2, packed, UYVY", - ZFMT(VIDEO_PALETTE_UYVY, - V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M), - .depth = 16, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_OVERLAY, - .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, - }, { - .name = "Hardware-encoded Motion-JPEG", - ZFMT(-1, - V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M), - .depth = 0, - .flags = ZORAN_FORMAT_CAPTURE | - ZORAN_FORMAT_PLAYBACK | - ZORAN_FORMAT_COMPRESSED, - } -}; -#define NUM_FORMATS ARRAY_SIZE(zoran_formats) - -// RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined - - -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 = default 1 = Don't change TV standard (norm) */ -module_param(lock_norm, int, 0644); -MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)"); - - /* 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 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). - */ - -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; -} - -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; - unsigned long pmem = 0; - - /* 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 = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL); - if (!mem) { - 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 { - - /* 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; - } - } - } - - 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); - } - fh->v4l_buffers.buffer[i].fbuffer = NULL; - } - - fh->v4l_buffers.allocated = 0; - fh->v4l_buffers.ready_to_be_freed = 0; -} - -/* - * Allocate the MJPEG grab buffers. - * - * If the requested buffer size is smaller than MAX_KMALLOC_MEM, - * kmalloc is used to request a physically contiguous area, - * else we allocate the memory in framgents with get_zeroed_page. - * - * If a Natoma chipset is present and this is a revision 1 zr36057, - * each MJPEG buffer needs to be physically contiguous. - * (RJ: This statement is from Dave Perks' original driver, - * I could never check it because I have a zr36067) - * The driver cares about this because it reduces the buffer - * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation). - * - * RJ: The contents grab buffers needs never be accessed in the driver. - * Therefore there is no need to allocate them with vmalloc in order - * to get a contiguous virtual memory space. - * I don't understand why many other drivers first allocate them with - * vmalloc (which uses internally also get_zeroed_page, but delivers you - * virtual addresses) and then again have to make a lot of efforts - * to get the physical address. - * - * Ben Capper: - * On big-endian architectures (such as ppc) some extra steps - * are needed. When reading and writing to the stat_com array - * and fragment buffers, the device expects to see little- - * endian values. The use of cpu_to_le32() and le32_to_cpu() - * in this function (and one or two others in zoran_device.c) - * ensure that these values are always stored in little-endian - * form, regardless of architecture. The zr36057 does Very Bad - * Things on big endian architectures if the stat_com array - * and fragment buffers are not little-endian. - */ - -static int -jpg_fbuffer_alloc (struct file *file) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int i, j, off; - unsigned long mem; - - /* we might have old buffers lying around */ - if (fh->jpg_buffers.ready_to_be_freed) { - jpg_fbuffer_free(file); - } - - for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { - if (fh->jpg_buffers.buffer[i].frag_tab) - dprintk(2, - KERN_WARNING - "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n", - ZR_DEVNAME(zr), i); - - /* Allocate fragment table for this buffer */ - - mem = get_zeroed_page(GFP_KERNEL); - if (mem == 0) { - dprintk(1, - KERN_ERR - "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n", - ZR_DEVNAME(zr), i); - jpg_fbuffer_free(file); - return -ENOBUFS; - } - fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem; - fh->jpg_buffers.buffer[i].frag_tab_bus = - virt_to_bus((void *) mem); - - //if (alloc_contig) { - if (fh->jpg_buffers.need_contiguous) { - mem = - (unsigned long) kmalloc(fh->jpg_buffers. - buffer_size, - GFP_KERNEL); - if (mem == 0) { - dprintk(1, - KERN_ERR - "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n", - ZR_DEVNAME(zr), i); - jpg_fbuffer_free(file); - return -ENOBUFS; - } - fh->jpg_buffers.buffer[i].frag_tab[0] = - cpu_to_le32(virt_to_bus((void *) mem)); - fh->jpg_buffers.buffer[i].frag_tab[1] = - cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1); - for (off = 0; off < fh->jpg_buffers.buffer_size; - off += PAGE_SIZE) - SetPageReserved(MAP_NR(mem + off)); - } else { - /* jpg_bufsize is allreay page aligned */ - for (j = 0; - j < fh->jpg_buffers.buffer_size / PAGE_SIZE; - j++) { - mem = get_zeroed_page(GFP_KERNEL); - if (mem == 0) { - dprintk(1, - KERN_ERR - "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n", - ZR_DEVNAME(zr), i); - jpg_fbuffer_free(file); - return -ENOBUFS; - } - - fh->jpg_buffers.buffer[i].frag_tab[2 * j] = - cpu_to_le32(virt_to_bus((void *) mem)); - fh->jpg_buffers.buffer[i].frag_tab[2 * j + - 1] = - cpu_to_le32((PAGE_SIZE / 4) << 1); - SetPageReserved(MAP_NR(mem)); - } - - fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1); - } - } - - dprintk(4, - KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n", - ZR_DEVNAME(zr), - (fh->jpg_buffers.num_buffers * - fh->jpg_buffers.buffer_size) >> 10); - - fh->jpg_buffers.allocated = 1; - - return 0; -} - -/* free the MJPEG grab buffers */ -static void -jpg_fbuffer_free (struct file *file) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int i, j, off; - unsigned char *mem; - - dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr)); - - for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { - if (!fh->jpg_buffers.buffer[i].frag_tab) - continue; - - //if (alloc_contig) { - if (fh->jpg_buffers.need_contiguous) { - if (fh->jpg_buffers.buffer[i].frag_tab[0]) { - mem = (unsigned char *) bus_to_virt(le32_to_cpu( - fh->jpg_buffers.buffer[i].frag_tab[0])); - for (off = 0; - off < fh->jpg_buffers.buffer_size; - off += PAGE_SIZE) - ClearPageReserved(MAP_NR - (mem + off)); - kfree(mem); - fh->jpg_buffers.buffer[i].frag_tab[0] = 0; - fh->jpg_buffers.buffer[i].frag_tab[1] = 0; - } - } else { - for (j = 0; - j < fh->jpg_buffers.buffer_size / PAGE_SIZE; - j++) { - if (!fh->jpg_buffers.buffer[i]. - frag_tab[2 * j]) - break; - ClearPageReserved(MAP_NR - (bus_to_virt - (le32_to_cpu - (fh->jpg_buffers. - buffer[i].frag_tab[2 * - j])))); - free_page((unsigned long) - bus_to_virt - (le32_to_cpu - (fh->jpg_buffers. - buffer[i]. - frag_tab[2 * j]))); - fh->jpg_buffers.buffer[i].frag_tab[2 * j] = - 0; - fh->jpg_buffers.buffer[i].frag_tab[2 * j + - 1] = 0; - } - } - - free_page((unsigned long) fh->jpg_buffers.buffer[i]. - frag_tab); - fh->jpg_buffers.buffer[i].frag_tab = NULL; - } - - fh->jpg_buffers.allocated = 0; - fh->jpg_buffers.ready_to_be_freed = 0; -} - -/* - * V4L Buffer grabbing - */ - -static int -zoran_v4l_set_format (struct file *file, - int width, - int height, - const struct zoran_format *format) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int bpp; - - /* Check size and format of the grab wanted */ - - if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || - height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { - dprintk(1, - KERN_ERR - "%s: v4l_set_format() - wrong frame size (%dx%d)\n", - ZR_DEVNAME(zr), width, height); - return -EINVAL; - } - - bpp = (format->depth + 7) / 8; - - /* Check against available buffer size */ - if (height * width * bpp > fh->v4l_buffers.buffer_size) { - dprintk(1, - KERN_ERR - "%s: v4l_set_format() - video buffer size (%d kB) is too small\n", - ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10); - return -EINVAL; - } - - /* The video front end needs 4-byte alinged line sizes */ - - if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { - dprintk(1, - KERN_ERR - "%s: v4l_set_format() - wrong frame alingment\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - fh->v4l_settings.width = width; - fh->v4l_settings.height = height; - fh->v4l_settings.format = format; - fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; - - return 0; -} - -static int -zoran_v4l_queue_frame (struct file *file, - int num) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - unsigned long flags; - int res = 0; - - if (!fh->v4l_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: v4l_queue_frame() - buffers not yet allocated\n", - ZR_DEVNAME(zr)); - res = -ENOMEM; - } - - /* No grabbing outside the buffer range! */ - if (num >= fh->v4l_buffers.num_buffers || num < 0) { - dprintk(1, - KERN_ERR - "%s: v4l_queue_frame() - buffer %d is out of range\n", - ZR_DEVNAME(zr), num); - res = -EINVAL; - } - - spin_lock_irqsave(&zr->spinlock, flags); - - if (fh->v4l_buffers.active == ZORAN_FREE) { - if (zr->v4l_buffers.active == ZORAN_FREE) { - zr->v4l_buffers = fh->v4l_buffers; - fh->v4l_buffers.active = ZORAN_ACTIVE; - } else { - dprintk(1, - KERN_ERR - "%s: v4l_queue_frame() - another session is already capturing\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - } - } - - /* make sure a grab isn't going on currently with this buffer */ - if (!res) { - switch (zr->v4l_buffers.buffer[num].state) { - default: - case BUZ_STATE_PEND: - if (zr->v4l_buffers.active == ZORAN_FREE) { - fh->v4l_buffers.active = ZORAN_FREE; - zr->v4l_buffers.allocated = 0; - } - res = -EBUSY; /* what are you doing? */ - break; - case BUZ_STATE_DONE: - dprintk(2, - KERN_WARNING - "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n", - ZR_DEVNAME(zr), num); - case BUZ_STATE_USER: - /* since there is at least one unused buffer there's room for at least - * one more pend[] entry */ - zr->v4l_pend[zr->v4l_pend_head++ & - V4L_MASK_FRAME] = num; - zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; - zr->v4l_buffers.buffer[num].bs.length = - fh->v4l_settings.bytesperline * - zr->v4l_settings.height; - fh->v4l_buffers.buffer[num] = - zr->v4l_buffers.buffer[num]; - break; - } - } - - spin_unlock_irqrestore(&zr->spinlock, flags); - - if (!res && zr->v4l_buffers.active == ZORAN_FREE) - zr->v4l_buffers.active = fh->v4l_buffers.active; - - return res; -} - -static int -v4l_grab (struct file *file, - struct video_mmap *mp) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int res = 0, i; - - for (i = 0; i < 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 == NUM_FORMATS || zoran_formats[i].depth == 0) { - dprintk(1, - KERN_ERR - "%s: v4l_grab() - wrong bytes-per-pixel format\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - /* - * To minimize the time spent in the IRQ routine, we avoid setting up - * the video front end there. - * If this grab has different parameters from a running streaming capture - * we stop the streaming capture and start it over again. - */ - if (zr->v4l_memgrab_active && - (zr->v4l_settings.width != mp->width || - zr->v4l_settings.height != mp->height || - zr->v4l_settings.format->palette != mp->format)) { - res = wait_grab_pending(zr); - if (res) - return res; - } - if ((res = zoran_v4l_set_format(file, - mp->width, - mp->height, - &zoran_formats[i]))) - return res; - zr->v4l_settings = fh->v4l_settings; - - /* queue the frame in the pending queue */ - if ((res = zoran_v4l_queue_frame(file, mp->frame))) { - fh->v4l_buffers.active = ZORAN_FREE; - return res; - } - - /* put the 36057 into frame grabbing mode */ - if (!res && !zr->v4l_memgrab_active) - zr36057_set_memgrab(zr, 1); - - //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr)); - - return res; -} - -/* - * Sync on a V4L buffer - */ - -static int -v4l_sync (struct file *file, - int frame) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - unsigned long flags; - - if (fh->v4l_buffers.active == ZORAN_FREE) { - dprintk(1, - KERN_ERR - "%s: v4l_sync() - no grab active for this session\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - /* check passed-in frame number */ - if (frame >= fh->v4l_buffers.num_buffers || frame < 0) { - dprintk(1, - KERN_ERR "%s: v4l_sync() - frame %d is invalid\n", - ZR_DEVNAME(zr), frame); - return -EINVAL; - } - - /* Check if is buffer was queued at all */ - if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { - dprintk(1, - KERN_ERR - "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n", - ZR_DEVNAME(zr)); - return -EPROTO; - } - - /* wait on this buffer to get ready */ - if (!wait_event_interruptible_timeout(zr->v4l_capq, - (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), - 10*HZ)) - return -ETIME; - if (signal_pending(current)) - return -ERESTARTSYS; - - /* buffer should now be in BUZ_STATE_DONE */ - if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) - dprintk(2, - KERN_ERR "%s: v4l_sync() - internal state error\n", - ZR_DEVNAME(zr)); - - zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; - fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; - - spin_lock_irqsave(&zr->spinlock, flags); - - /* Check if streaming capture has finished */ - if (zr->v4l_pend_tail == zr->v4l_pend_head) { - zr36057_set_memgrab(zr, 0); - if (zr->v4l_buffers.active == ZORAN_ACTIVE) { - fh->v4l_buffers.active = zr->v4l_buffers.active = - ZORAN_FREE; - zr->v4l_buffers.allocated = 0; - } - } - - spin_unlock_irqrestore(&zr->spinlock, flags); - - return 0; -} - -/* - * Queue a MJPEG buffer for capture/playback - */ - -static int -zoran_jpg_queue_frame (struct file *file, - int num, - enum zoran_codec_mode mode) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - unsigned long flags; - int res = 0; - - /* Check if buffers are allocated */ - if (!fh->jpg_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: jpg_queue_frame() - buffers not yet allocated\n", - ZR_DEVNAME(zr)); - return -ENOMEM; - } - - /* No grabbing outside the buffer range! */ - if (num >= fh->jpg_buffers.num_buffers || num < 0) { - dprintk(1, - KERN_ERR - "%s: jpg_queue_frame() - buffer %d out of range\n", - ZR_DEVNAME(zr), num); - return -EINVAL; - } - - /* what is the codec mode right now? */ - if (zr->codec_mode == BUZ_MODE_IDLE) { - zr->jpg_settings = fh->jpg_settings; - } else if (zr->codec_mode != mode) { - /* wrong codec mode active - invalid */ - dprintk(1, - KERN_ERR - "%s: jpg_queue_frame() - codec in wrong mode\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - if (fh->jpg_buffers.active == ZORAN_FREE) { - if (zr->jpg_buffers.active == ZORAN_FREE) { - zr->jpg_buffers = fh->jpg_buffers; - fh->jpg_buffers.active = ZORAN_ACTIVE; - } else { - dprintk(1, - KERN_ERR - "%s: jpg_queue_frame() - another session is already capturing\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - } - } - - if (!res && zr->codec_mode == BUZ_MODE_IDLE) { - /* Ok load up the jpeg codec */ - zr36057_enable_jpg(zr, mode); - } - - spin_lock_irqsave(&zr->spinlock, flags); - - if (!res) { - switch (zr->jpg_buffers.buffer[num].state) { - case BUZ_STATE_DONE: - dprintk(2, - KERN_WARNING - "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n", - ZR_DEVNAME(zr)); - case BUZ_STATE_USER: - /* since there is at least one unused buffer there's room for at - *least one more pend[] entry */ - zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = - num; - zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; - fh->jpg_buffers.buffer[num] = - zr->jpg_buffers.buffer[num]; - zoran_feed_stat_com(zr); - break; - default: - case BUZ_STATE_DMA: - case BUZ_STATE_PEND: - if (zr->jpg_buffers.active == ZORAN_FREE) { - fh->jpg_buffers.active = ZORAN_FREE; - zr->jpg_buffers.allocated = 0; - } - res = -EBUSY; /* what are you doing? */ - break; - } - } - - spin_unlock_irqrestore(&zr->spinlock, flags); - - if (!res && zr->jpg_buffers.active == ZORAN_FREE) { - zr->jpg_buffers.active = fh->jpg_buffers.active; - } - - return res; -} - -static int -jpg_qbuf (struct file *file, - int frame, - enum zoran_codec_mode mode) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int res = 0; - - /* Does the user want to stop streaming? */ - if (frame < 0) { - if (zr->codec_mode == mode) { - if (fh->jpg_buffers.active == ZORAN_FREE) { - dprintk(1, - KERN_ERR - "%s: jpg_qbuf(-1) - session not active\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - fh->jpg_buffers.active = zr->jpg_buffers.active = - ZORAN_FREE; - zr->jpg_buffers.allocated = 0; - zr36057_enable_jpg(zr, BUZ_MODE_IDLE); - return 0; - } else { - dprintk(1, - KERN_ERR - "%s: jpg_qbuf() - stop streaming but not in streaming mode\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - } - - if ((res = zoran_jpg_queue_frame(file, frame, mode))) - return res; - - /* Start the jpeg codec when the first frame is queued */ - if (!res && zr->jpg_que_head == 1) - jpeg_start(zr); - - return res; -} - -/* - * Sync on a MJPEG buffer - */ - -static int -jpg_sync (struct file *file, - struct zoran_sync *bs) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - unsigned long flags; - int frame; - - if (fh->jpg_buffers.active == ZORAN_FREE) { - dprintk(1, - KERN_ERR - "%s: jpg_sync() - capture is not currently active\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && - zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { - dprintk(1, - KERN_ERR - "%s: jpg_sync() - codec not in streaming mode\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - if (!wait_event_interruptible_timeout(zr->jpg_capq, - (zr->jpg_que_tail != zr->jpg_dma_tail || - zr->jpg_dma_tail == zr->jpg_dma_head), - 10*HZ)) { - int isr; - - btand(~ZR36057_JMC_Go_en, ZR36057_JMC); - udelay(1); - zr->codec->control(zr->codec, CODEC_G_STATUS, - sizeof(isr), &isr); - dprintk(1, - KERN_ERR - "%s: jpg_sync() - timeout: codec isr=0x%02x\n", - ZR_DEVNAME(zr), isr); - - return -ETIME; - - } - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&zr->spinlock, flags); - - if (zr->jpg_dma_tail != zr->jpg_dma_head) - frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; - else - frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; - - /* buffer should now be in BUZ_STATE_DONE */ - if (zr->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) { - unsigned long flags; - - spin_lock_irqsave(&zr->spinlock, flags); - zr36057_set_memgrab(zr, 0); - zr->v4l_buffers.allocated = 0; - zr->v4l_buffers.active = fh->v4l_buffers.active = - ZORAN_FREE; - spin_unlock_irqrestore(&zr->spinlock, flags); - } - - /* v4l buffers */ - if (fh->v4l_buffers.allocated || - fh->v4l_buffers.ready_to_be_freed) { - v4l_fbuffer_free(file); - } - - /* jpg capture */ - if (fh->jpg_buffers.active != ZORAN_FREE) { - zr36057_enable_jpg(zr, BUZ_MODE_IDLE); - zr->jpg_buffers.allocated = 0; - zr->jpg_buffers.active = fh->jpg_buffers.active = - ZORAN_FREE; - } - - /* jpg buffers */ - if (fh->jpg_buffers.allocated || - fh->jpg_buffers.ready_to_be_freed) { - jpg_fbuffer_free(file); - } -} - -/* - * Open a zoran card. Right now the flags stuff is just playing - */ - -static int -zoran_open (struct inode *inode, - struct file *file) -{ - unsigned int minor = iminor(inode); - struct zoran *zr = NULL; - struct zoran_fh *fh; - int i, res, first_open = 0, have_module_locks = 0; - - /* find the device */ - for (i = 0; i < zoran_num; i++) { - if (zoran[i]->video_dev->minor == minor) { - zr = zoran[i]; - break; - } - } - - if (!zr) { - dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME); - res = -ENODEV; - goto open_unlock_and_return; - } - - /* see fs/device.c - the kernel already locks during open(), - * so locking ourselves only causes deadlocks */ - /*mutex_lock(&zr->resource_lock);*/ - - if (!zr->decoder) { - dprintk(1, - KERN_ERR "%s: no TV decoder loaded for device!\n", - ZR_DEVNAME(zr)); - res = -EIO; - goto open_unlock_and_return; - } - - /* try to grab a module lock */ - if (!try_module_get(THIS_MODULE)) { - dprintk(1, - KERN_ERR - "%s: failed to acquire my own lock! PANIC!\n", - ZR_DEVNAME(zr)); - res = -ENODEV; - goto open_unlock_and_return; - } - if (!try_module_get(zr->decoder->driver->driver.owner)) { - dprintk(1, - KERN_ERR - "%s: failed to grab ownership of i2c decoder\n", - ZR_DEVNAME(zr)); - res = -EIO; - module_put(THIS_MODULE); - goto open_unlock_and_return; - } - if (zr->encoder && - !try_module_get(zr->encoder->driver->driver.owner)) { - dprintk(1, - KERN_ERR - "%s: failed to grab ownership of i2c encoder\n", - ZR_DEVNAME(zr)); - res = -EIO; - module_put(zr->decoder->driver->driver.owner); - module_put(THIS_MODULE); - goto open_unlock_and_return; - } - - have_module_locks = 1; - - if (zr->user >= 2048) { - dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", - ZR_DEVNAME(zr), zr->user); - res = -EBUSY; - goto open_unlock_and_return; - } - - dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n", - ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user); - - /* now, create the open()-specific file_ops struct */ - fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); - if (!fh) { - dprintk(1, - KERN_ERR - "%s: zoran_open() - allocation of zoran_fh failed\n", - ZR_DEVNAME(zr)); - res = -ENOMEM; - goto open_unlock_and_return; - } - /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows - * on norm-change! */ - fh->overlay_mask = - kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); - if (!fh->overlay_mask) { - dprintk(1, - KERN_ERR - "%s: zoran_open() - allocation of overlay_mask failed\n", - ZR_DEVNAME(zr)); - kfree(fh); - res = -ENOMEM; - goto open_unlock_and_return; - } - - if (zr->user++ == 0) - first_open = 1; - - /*mutex_unlock(&zr->resource_lock);*/ - - /* default setup - TODO: look at flags */ - if (first_open) { /* First device open */ - zr36057_restart(zr); - zoran_open_init_params(zr); - zoran_init_hardware(zr); - - btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); - } - - /* set file_ops stuff */ - file->private_data = fh; - fh->zr = zr; - zoran_open_init_session(file); - - return 0; - -open_unlock_and_return: - /* if we grabbed locks, release them accordingly */ - if (have_module_locks) { - module_put(zr->decoder->driver->driver.owner); - if (zr->encoder) { - module_put(zr->encoder->driver->driver.owner); - } - module_put(THIS_MODULE); - } - - /* if there's no device found, we didn't obtain the lock either */ - if (zr) { - /*mutex_unlock(&zr->resource_lock);*/ - } - - return res; -} - -static int -zoran_close (struct inode *inode, - struct file *file) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - - dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n", - ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user); - - /* kernel locks (fs/device.c), so don't do that ourselves - * (prevents deadlocks) */ - /*mutex_lock(&zr->resource_lock);*/ - - zoran_close_end_session(file); - - if (zr->user-- == 1) { /* Last process */ - /* Clean up JPEG process */ - wake_up_interruptible(&zr->jpg_capq); - zr36057_enable_jpg(zr, BUZ_MODE_IDLE); - zr->jpg_buffers.allocated = 0; - zr->jpg_buffers.active = ZORAN_FREE; - - /* disable interrupts */ - btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); - - if (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 */ - int zero = 0, two = 2; - decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero); - encoder_command(zr, ENCODER_SET_INPUT, &two); - } - } - - file->private_data = NULL; - kfree(fh->overlay_mask); - kfree(fh); - - /* release locks on the i2c modules */ - module_put(zr->decoder->driver->driver.owner); - if (zr->encoder) { - module_put(zr->encoder->driver->driver.owner); - } - module_put(THIS_MODULE); - - /*mutex_unlock(&zr->resource_lock);*/ - - dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr)); - - return 0; -} - - -static ssize_t -zoran_read (struct file *file, - char __user *data, - size_t count, - loff_t *ppos) -{ - /* we simply don't support read() (yet)... */ - - return -EINVAL; -} - -static ssize_t -zoran_write (struct file *file, - const char __user *data, - size_t count, - loff_t *ppos) -{ - /* ...and the same goes for write() */ - - return -EINVAL; -} - -static int -setup_fbuffer (struct file *file, - void *base, - const struct zoran_format *fmt, - int width, - int height, - int bytesperline) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - - /* (Ronald) v4l/v4l2 guidelines */ - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on - ALi Magik (that needs very low latency while the card needs a - higher value always) */ - - if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) - return -ENXIO; - - /* we need a bytesperline value, even if not given */ - if (!bytesperline) - bytesperline = width * ((fmt->depth + 7) & ~7) / 8; - -#if 0 - if (zr->overlay_active) { - /* dzjee... stupid users... don't even bother to turn off - * overlay before changing the memory location... - * normally, we would return errors here. However, one of - * the tools that does this is... xawtv! and since xawtv - * is used by +/- 99% of the users, we'd rather be user- - * friendly and silently do as if nothing went wrong */ - dprintk(3, - KERN_ERR - "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n", - ZR_DEVNAME(zr)); - zr36057_overlay(zr, 0); - } -#endif - - if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { - dprintk(1, - KERN_ERR - "%s: setup_fbuffer() - no valid overlay format given\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - if (height <= 0 || width <= 0 || bytesperline <= 0) { - dprintk(1, - KERN_ERR - "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n", - ZR_DEVNAME(zr), width, height, bytesperline); - return -EINVAL; - } - if (bytesperline & 3) { - dprintk(1, - KERN_ERR - "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n", - ZR_DEVNAME(zr), bytesperline); - return -EINVAL; - } - - zr->buffer.base = (void *) ((unsigned long) base & ~3); - zr->buffer.height = height; - zr->buffer.width = width; - zr->buffer.depth = fmt->depth; - zr->overlay_settings.format = fmt; - zr->buffer.bytesperline = bytesperline; - - /* The user should set new window parameters */ - zr->overlay_settings.is_set = 0; - - return 0; -} - - -static int -setup_window (struct file *file, - int x, - int y, - int width, - int height, - struct video_clip __user *clips, - int clipcount, - void __user *bitmap) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - struct video_clip *vcp = NULL; - int on, end; - - - if (!zr->buffer.base) { - dprintk(1, - KERN_ERR - "%s: setup_window() - frame buffer has to be set first\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - if (!fh->overlay_settings.format) { - dprintk(1, - KERN_ERR - "%s: setup_window() - no overlay format set\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - /* - * The video front end needs 4-byte alinged line sizes, we correct that - * silently here if necessary - */ - if (zr->buffer.depth == 15 || zr->buffer.depth == 16) { - end = (x + width) & ~1; /* round down */ - x = (x + 1) & ~1; /* round up */ - width = end - x; - } - - if (zr->buffer.depth == 24) { - end = (x + width) & ~3; /* round down */ - x = (x + 3) & ~3; /* round up */ - width = end - x; - } - - if (width > BUZ_MAX_WIDTH) - width = BUZ_MAX_WIDTH; - if (height > BUZ_MAX_HEIGHT) - height = BUZ_MAX_HEIGHT; - - /* Check for vaild parameters */ - if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || - width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { - dprintk(1, - KERN_ERR - "%s: setup_window() - width = %d or height = %d invalid\n", - ZR_DEVNAME(zr), width, height); - return -EINVAL; - } - - fh->overlay_settings.x = x; - fh->overlay_settings.y = y; - fh->overlay_settings.width = width; - fh->overlay_settings.height = height; - fh->overlay_settings.clipcount = clipcount; - - /* - * If an overlay is running, we have to switch it off - * and switch it on again in order to get the new settings in effect. - * - * We also want to avoid that the overlay mask is written - * when an overlay is running. - */ - - on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && - zr->overlay_active != ZORAN_FREE && - fh->overlay_active != ZORAN_FREE; - if (on) - zr36057_overlay(zr, 0); - - /* - * Write the overlay mask if clips are wanted. - * We prefer a bitmap. - */ - if (bitmap) { - /* fake value - it just means we want clips */ - fh->overlay_settings.clipcount = 1; - - if (copy_from_user(fh->overlay_mask, bitmap, - (width * height + 7) / 8)) { - return -EFAULT; - } - } else if (clipcount > 0) { - /* write our own bitmap from the clips */ - vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4)); - if (vcp == NULL) { - dprintk(1, - KERN_ERR - "%s: setup_window() - Alloc of clip mask failed\n", - ZR_DEVNAME(zr)); - return -ENOMEM; - } - if (copy_from_user - (vcp, clips, sizeof(struct video_clip) * clipcount)) { - vfree(vcp); - return -EFAULT; - } - write_overlay_mask(file, vcp, clipcount); - vfree(vcp); - } - - fh->overlay_settings.is_set = 1; - if (fh->overlay_active != ZORAN_FREE && - zr->overlay_active != ZORAN_FREE) - zr->overlay_settings = fh->overlay_settings; - - if (on) - zr36057_overlay(zr, 1); - - /* Make sure the changes come into effect */ - return wait_grab_pending(zr); -} - -static int -setup_overlay (struct file *file, - int on) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - - /* If there is nothing to do, return immediatly */ - if ((on && fh->overlay_active != ZORAN_FREE) || - (!on && fh->overlay_active == ZORAN_FREE)) - return 0; - - /* check whether we're touching someone else's overlay */ - if (on && zr->overlay_active != ZORAN_FREE && - fh->overlay_active == ZORAN_FREE) { - dprintk(1, - KERN_ERR - "%s: setup_overlay() - overlay is already active for another session\n", - ZR_DEVNAME(zr)); - return -EBUSY; - } - if (!on && zr->overlay_active != ZORAN_FREE && - fh->overlay_active == ZORAN_FREE) { - dprintk(1, - KERN_ERR - "%s: setup_overlay() - you cannot cancel someone else's session\n", - ZR_DEVNAME(zr)); - return -EPERM; - } - - if (on == 0) { - zr->overlay_active = fh->overlay_active = ZORAN_FREE; - zr->v4l_overlay_active = 0; - /* When a grab is running, the video simply - * won't be switched on any more */ - if (!zr->v4l_memgrab_active) - zr36057_overlay(zr, 0); - zr->overlay_mask = NULL; - } else { - if (!zr->buffer.base || !fh->overlay_settings.is_set) { - dprintk(1, - KERN_ERR - "%s: setup_overlay() - buffer or window not set\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - if (!fh->overlay_settings.format) { - dprintk(1, - KERN_ERR - "%s: setup_overlay() - no overlay format set\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; - zr->v4l_overlay_active = 1; - zr->overlay_mask = fh->overlay_mask; - zr->overlay_settings = fh->overlay_settings; - if (!zr->v4l_memgrab_active) - zr36057_overlay(zr, 1); - /* When a grab is running, the video will be - * switched on when grab is finished */ - } - - /* Make sure the changes come into effect */ - return wait_grab_pending(zr); -} - - /* 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; -} - -static int -zoran_set_norm (struct zoran *zr, - int norm) /* VIDEO_MODE_* */ -{ - int norm_encoder, on; - - if (zr->v4l_buffers.active != ZORAN_FREE || - zr->jpg_buffers.active != ZORAN_FREE) { - dprintk(1, - KERN_WARNING - "%s: set_norm() called while in playback/capture mode\n", - ZR_DEVNAME(zr)); - return -EBUSY; - } - - if (lock_norm && norm != zr->norm) { - if (lock_norm > 1) { - dprintk(1, - KERN_WARNING - "%s: set_norm() - TV standard is locked, can not switch norm\n", - ZR_DEVNAME(zr)); - return -EPERM; - } else { - dprintk(1, - KERN_WARNING - "%s: set_norm() - TV standard is locked, norm was not changed\n", - ZR_DEVNAME(zr)); - norm = zr->norm; - } - } - - if (norm != VIDEO_MODE_AUTO && - (norm < 0 || norm >= zr->card.norms || - !zr->card.tvn[norm])) { - dprintk(1, - KERN_ERR "%s: set_norm() - unsupported norm %d\n", - ZR_DEVNAME(zr), norm); - return -EINVAL; - } - - if (norm == VIDEO_MODE_AUTO) { - int status; - - /* if we have autodetect, ... */ - struct video_decoder_capability caps; - decoder_command(zr, DECODER_GET_CAPABILITIES, &caps); - if (!(caps.flags & VIDEO_DECODER_AUTO)) { - dprintk(1, KERN_ERR "%s: norm=auto unsupported\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - decoder_command(zr, DECODER_SET_NORM, &norm); - - /* let changes come into effect */ - ssleep(2); - - decoder_command(zr, DECODER_GET_STATUS, &status); - if (!(status & DECODER_STATUS_GOOD)) { - dprintk(1, - KERN_ERR - "%s: set_norm() - no norm detected\n", - ZR_DEVNAME(zr)); - /* reset norm */ - decoder_command(zr, DECODER_SET_NORM, &zr->norm); - return -EIO; - } - - if (status & DECODER_STATUS_NTSC) - norm = VIDEO_MODE_NTSC; - else if (status & DECODER_STATUS_SECAM) - norm = VIDEO_MODE_SECAM; - else - norm = VIDEO_MODE_PAL; - } - zr->timing = zr->card.tvn[norm]; - norm_encoder = norm; - - /* We switch overlay off and on since a change in the - * norm needs different VFE settings */ - on = zr->overlay_active && !zr->v4l_memgrab_active; - if (on) - zr36057_overlay(zr, 0); - - decoder_command(zr, DECODER_SET_NORM, &norm); - encoder_command(zr, ENCODER_SET_NORM, &norm_encoder); - - if (on) - zr36057_overlay(zr, 1); - - /* Make sure the changes come into effect */ - zr->norm = norm; - - return 0; -} - -static int -zoran_set_input (struct zoran *zr, - int input) -{ - int realinput; - - if (input == zr->input) { - return 0; - } - - if (zr->v4l_buffers.active != ZORAN_FREE || - zr->jpg_buffers.active != ZORAN_FREE) { - dprintk(1, - KERN_WARNING - "%s: set_input() called while in playback/capture mode\n", - ZR_DEVNAME(zr)); - return -EBUSY; - } - - if (input < 0 || input >= zr->card.inputs) { - dprintk(1, - KERN_ERR - "%s: set_input() - unnsupported input %d\n", - ZR_DEVNAME(zr), input); - return -EINVAL; - } - - realinput = zr->card.input[input].muxsel; - zr->input = input; - - decoder_command(zr, DECODER_SET_INPUT, &realinput); - - return 0; -} - -/* - * ioctl routine - */ - -static int -zoran_do_ioctl (struct inode *inode, - struct file *file, - unsigned int cmd, - void *arg) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - /* CAREFUL: used in multiple places here */ - struct zoran_jpg_settings settings; - - /* we might have older buffers lying around... We don't want - * to wait, but we do want to try cleaning them up ASAP. So - * we try to obtain the lock and free them. If that fails, we - * don't do anything and wait for the next turn. In the end, - * zoran_close() or a new allocation will still free them... - * This is just a 'the sooner the better' extra 'feature' - * - * We don't free the buffers right on munmap() because that - * causes oopses (kfree() inside munmap() oopses for no - * apparent reason - it's also not reproduceable in any way, - * but moving the free code outside the munmap() handler fixes - * all this... If someone knows why, please explain me (Ronald) - */ - if (mutex_trylock(&zr->resource_lock)) { - /* we obtained it! Let's try to free some things */ - if (fh->jpg_buffers.ready_to_be_freed) - jpg_fbuffer_free(file); - if (fh->v4l_buffers.ready_to_be_freed) - v4l_fbuffer_free(file); - - mutex_unlock(&zr->resource_lock); - } - - switch (cmd) { - - case VIDIOCGCAP: - { - struct video_capability *vcap = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr)); - - memset(vcap, 0, sizeof(struct video_capability)); - strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1); - vcap->type = ZORAN_VID_TYPE; - - vcap->channels = zr->card.inputs; - vcap->audios = 0; - mutex_lock(&zr->resource_lock); - vcap->maxwidth = BUZ_MAX_WIDTH; - vcap->maxheight = BUZ_MAX_HEIGHT; - vcap->minwidth = BUZ_MIN_WIDTH; - vcap->minheight = BUZ_MIN_HEIGHT; - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOCGCHAN: - { - struct video_channel *vchan = arg; - int channel = vchan->channel; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n", - ZR_DEVNAME(zr), vchan->channel); - - memset(vchan, 0, sizeof(struct video_channel)); - if (channel > zr->card.inputs || channel < 0) { - dprintk(1, - KERN_ERR - "%s: VIDIOCGCHAN on not existing channel %d\n", - ZR_DEVNAME(zr), channel); - return -EINVAL; - } - - strcpy(vchan->name, zr->card.input[channel].name); - - vchan->tuners = 0; - vchan->flags = 0; - vchan->type = VIDEO_TYPE_CAMERA; - mutex_lock(&zr->resource_lock); - vchan->norm = zr->norm; - mutex_unlock(&zr->resource_lock); - vchan->channel = channel; - - return 0; - } - break; - - /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says: - * - * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input." - * * ^^^^^^^ - * * The famos BTTV driver has it implemented with a struct video_channel argument - * * and we follow it for compatibility reasons - * * - * * BTW: this is the only way the user can set the norm! - */ - - case VIDIOCSCHAN: - { - struct video_channel *vchan = arg; - int res; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOCSCHAN - channel=%d, norm=%d\n", - ZR_DEVNAME(zr), vchan->channel, vchan->norm); - - mutex_lock(&zr->resource_lock); - if ((res = zoran_set_input(zr, vchan->channel))) - goto schan_unlock_and_return; - if ((res = zoran_set_norm(zr, vchan->norm))) - goto schan_unlock_and_return; - - /* Make sure the changes come into effect */ - res = wait_grab_pending(zr); - schan_unlock_and_return: - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOCGPICT: - { - struct video_picture *vpict = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr)); - - memset(vpict, 0, sizeof(struct video_picture)); - mutex_lock(&zr->resource_lock); - vpict->hue = zr->hue; - vpict->brightness = zr->brightness; - vpict->contrast = zr->contrast; - vpict->colour = zr->saturation; - if (fh->overlay_settings.format) { - vpict->depth = fh->overlay_settings.format->depth; - vpict->palette = fh->overlay_settings.format->palette; - } else { - vpict->depth = 0; - } - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOCSPICT: - { - struct video_picture *vpict = arg; - int i; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n", - ZR_DEVNAME(zr), vpict->brightness, vpict->hue, - vpict->colour, vpict->contrast, vpict->depth, - vpict->palette); - - for (i = 0; i < 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 == NUM_FORMATS) { - dprintk(1, - KERN_ERR - "%s: VIDIOCSPICT - Invalid palette %d\n", - ZR_DEVNAME(zr), vpict->palette); - return -EINVAL; - } - - mutex_lock(&zr->resource_lock); - - decoder_command(zr, DECODER_SET_PICTURE, vpict); - - zr->hue = vpict->hue; - zr->contrast = vpict->contrast; - zr->saturation = vpict->colour; - zr->brightness = vpict->brightness; - - fh->overlay_settings.format = &zoran_formats[i]; - - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOCCAPTURE: - { - int *on = arg, res; - - dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n", - ZR_DEVNAME(zr), *on); - - mutex_lock(&zr->resource_lock); - res = setup_overlay(file, *on); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOCGWIN: - { - struct video_window *vwin = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr)); - - memset(vwin, 0, sizeof(struct video_window)); - mutex_lock(&zr->resource_lock); - vwin->x = fh->overlay_settings.x; - vwin->y = fh->overlay_settings.y; - vwin->width = fh->overlay_settings.width; - vwin->height = fh->overlay_settings.height; - mutex_unlock(&zr->resource_lock); - vwin->clipcount = 0; - return 0; - } - break; - - case VIDIOCSWIN: - { - struct video_window *vwin = arg; - int res; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n", - ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width, - vwin->height, vwin->clipcount); - - mutex_lock(&zr->resource_lock); - res = - setup_window(file, vwin->x, vwin->y, vwin->width, - vwin->height, vwin->clips, - vwin->clipcount, NULL); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOCGFBUF: - { - struct video_buffer *vbuf = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - *vbuf = zr->buffer; - mutex_unlock(&zr->resource_lock); - return 0; - } - break; - - case VIDIOCSFBUF: - { - struct video_buffer *vbuf = arg; - int i, res = 0; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n", - ZR_DEVNAME(zr), vbuf->base, vbuf->width, - vbuf->height, vbuf->depth, vbuf->bytesperline); - - for (i = 0; i < NUM_FORMATS; i++) - if (zoran_formats[i].depth == vbuf->depth) - break; - if (i == NUM_FORMATS) { - dprintk(1, - KERN_ERR - "%s: VIDIOCSFBUF - invalid fbuf depth %d\n", - ZR_DEVNAME(zr), vbuf->depth); - return -EINVAL; - } - - mutex_lock(&zr->resource_lock); - res = - setup_fbuffer(file, vbuf->base, &zoran_formats[i], - vbuf->width, vbuf->height, - vbuf->bytesperline); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOCSYNC: - { - int *frame = arg, res; - - dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n", - ZR_DEVNAME(zr), *frame); - - mutex_lock(&zr->resource_lock); - res = v4l_sync(file, *frame); - mutex_unlock(&zr->resource_lock); - if (!res) - zr->v4l_sync_tail++; - return res; - } - break; - - case VIDIOCMCAPTURE: - { - struct video_mmap *vmap = arg; - int res; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n", - ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height, - vmap->format); - - mutex_lock(&zr->resource_lock); - res = v4l_grab(file, vmap); - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOCGMBUF: - { - struct video_mbuf *vmbuf = arg; - int i, res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr)); - - vmbuf->size = - fh->v4l_buffers.num_buffers * - fh->v4l_buffers.buffer_size; - vmbuf->frames = fh->v4l_buffers.num_buffers; - for (i = 0; i < vmbuf->frames; i++) { - vmbuf->offsets[i] = - i * fh->v4l_buffers.buffer_size; - } - - mutex_lock(&zr->resource_lock); - - if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: VIDIOCGMBUF - buffers already allocated\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto v4l1reqbuf_unlock_and_return; - } - - if (v4l_fbuffer_alloc(file)) { - res = -ENOMEM; - goto v4l1reqbuf_unlock_and_return; - } - - /* The next mmap will map the V4L buffers */ - fh->map_mode = ZORAN_MAP_MODE_RAW; - v4l1reqbuf_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOCGUNIT: - { - struct video_unit *vunit = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr)); - - vunit->video = zr->video_dev->minor; - vunit->vbi = VIDEO_NO_UNIT; - vunit->radio = VIDEO_NO_UNIT; - vunit->audio = VIDEO_NO_UNIT; - vunit->teletext = VIDEO_NO_UNIT; - - return 0; - } - break; - - /* - * RJ: In principal we could support subcaptures for V4L grabbing. - * Not even the famous BTTV driver has them, however. - * If there should be a strong demand, one could consider - * to implement them. - */ - case VIDIOCGCAPTURE: - { - dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - break; - - case VIDIOCSCAPTURE: - { - dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - break; - - case BUZIOC_G_PARAMS: - { - struct zoran_params *bparams = arg; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr)); - - memset(bparams, 0, sizeof(struct zoran_params)); - bparams->major_version = MAJOR_VERSION; - bparams->minor_version = MINOR_VERSION; - - mutex_lock(&zr->resource_lock); - - bparams->norm = zr->norm; - bparams->input = zr->input; - - bparams->decimation = fh->jpg_settings.decimation; - bparams->HorDcm = fh->jpg_settings.HorDcm; - bparams->VerDcm = fh->jpg_settings.VerDcm; - bparams->TmpDcm = fh->jpg_settings.TmpDcm; - bparams->field_per_buff = fh->jpg_settings.field_per_buff; - bparams->img_x = fh->jpg_settings.img_x; - bparams->img_y = fh->jpg_settings.img_y; - bparams->img_width = fh->jpg_settings.img_width; - bparams->img_height = fh->jpg_settings.img_height; - bparams->odd_even = fh->jpg_settings.odd_even; - - bparams->quality = fh->jpg_settings.jpg_comp.quality; - bparams->APPn = fh->jpg_settings.jpg_comp.APPn; - bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len; - memcpy(bparams->APP_data, - fh->jpg_settings.jpg_comp.APP_data, - sizeof(bparams->APP_data)); - bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len; - memcpy(bparams->COM_data, - fh->jpg_settings.jpg_comp.COM_data, - sizeof(bparams->COM_data)); - bparams->jpeg_markers = - fh->jpg_settings.jpg_comp.jpeg_markers; - - mutex_unlock(&zr->resource_lock); - - bparams->VFIFO_FB = 0; - - return 0; - } - break; - - case BUZIOC_S_PARAMS: - { - struct zoran_params *bparams = arg; - int res = 0; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr)); - - settings.decimation = bparams->decimation; - settings.HorDcm = bparams->HorDcm; - settings.VerDcm = bparams->VerDcm; - settings.TmpDcm = bparams->TmpDcm; - settings.field_per_buff = bparams->field_per_buff; - settings.img_x = bparams->img_x; - settings.img_y = bparams->img_y; - settings.img_width = bparams->img_width; - settings.img_height = bparams->img_height; - settings.odd_even = bparams->odd_even; - - settings.jpg_comp.quality = bparams->quality; - settings.jpg_comp.APPn = bparams->APPn; - settings.jpg_comp.APP_len = bparams->APP_len; - memcpy(settings.jpg_comp.APP_data, bparams->APP_data, - sizeof(bparams->APP_data)); - settings.jpg_comp.COM_len = bparams->COM_len; - memcpy(settings.jpg_comp.COM_data, bparams->COM_data, - sizeof(bparams->COM_data)); - settings.jpg_comp.jpeg_markers = bparams->jpeg_markers; - - mutex_lock(&zr->resource_lock); - - if (zr->codec_mode != BUZ_MODE_IDLE) { - dprintk(1, - KERN_ERR - "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto sparams_unlock_and_return; - } - - /* Check the params first before overwriting our - * nternal values */ - if (zoran_check_jpg_settings(zr, &settings)) { - res = -EINVAL; - goto sparams_unlock_and_return; - } - - fh->jpg_settings = settings; - sparams_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case BUZIOC_REQBUFS: - { - struct zoran_requestbuffers *breq = arg; - int res = 0; - - dprintk(3, - KERN_DEBUG - "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n", - ZR_DEVNAME(zr), breq->count, breq->size); - - /* Enforce reasonable lower and upper limits */ - if (breq->count < 4) - breq->count = 4; /* Could be choosen smaller */ - if (breq->count > jpg_nbufs) - breq->count = jpg_nbufs; - breq->size = PAGE_ALIGN(breq->size); - if (breq->size < 8192) - breq->size = 8192; /* Arbitrary */ - /* breq->size is limited by 1 page for the stat_com - * tables to a Maximum of 2 MB */ - if (breq->size > jpg_bufsize) - breq->size = jpg_bufsize; - if (fh->jpg_buffers.need_contiguous && - breq->size > MAX_KMALLOC_MEM) - breq->size = MAX_KMALLOC_MEM; - - mutex_lock(&zr->resource_lock); - - if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: BUZIOC_REQBUFS - buffers allready allocated\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto jpgreqbuf_unlock_and_return; - } - - fh->jpg_buffers.num_buffers = breq->count; - fh->jpg_buffers.buffer_size = breq->size; - - if (jpg_fbuffer_alloc(file)) { - res = -ENOMEM; - goto jpgreqbuf_unlock_and_return; - } - - /* The next mmap will map the MJPEG buffers - could - * also be *_PLAY, but it doesn't matter here */ - fh->map_mode = ZORAN_MAP_MODE_JPG_REC; - jpgreqbuf_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case BUZIOC_QBUF_CAPT: - { - int *frame = arg, res; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n", - ZR_DEVNAME(zr), *frame); - - mutex_lock(&zr->resource_lock); - res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case BUZIOC_QBUF_PLAY: - { - int *frame = arg, res; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n", - ZR_DEVNAME(zr), *frame); - - mutex_lock(&zr->resource_lock); - res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case BUZIOC_SYNC: - { - struct zoran_sync *bsync = arg; - int res; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - res = jpg_sync(file, bsync); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case BUZIOC_G_STATUS: - { - struct zoran_status *bstat = arg; - int norm, input, status, res = 0; - - dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr)); - - if (zr->codec_mode != BUZ_MODE_IDLE) { - dprintk(1, - KERN_ERR - "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - input = zr->card.input[bstat->input].muxsel; - norm = VIDEO_MODE_AUTO; - - mutex_lock(&zr->resource_lock); - - if (zr->codec_mode != BUZ_MODE_IDLE) { - dprintk(1, - KERN_ERR - "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto gstat_unlock_and_return; - } - - decoder_command(zr, DECODER_SET_INPUT, &input); - decoder_command(zr, DECODER_SET_NORM, &norm); - - /* sleep 1 second */ - ssleep(1); - - /* Get status of video decoder */ - decoder_command(zr, DECODER_GET_STATUS, &status); - - /* restore previous input and norm */ - input = zr->card.input[zr->input].muxsel; - decoder_command(zr, DECODER_SET_INPUT, &input); - decoder_command(zr, DECODER_SET_NORM, &zr->norm); - gstat_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - if (!res) { - bstat->signal = - (status & DECODER_STATUS_GOOD) ? 1 : 0; - if (status & DECODER_STATUS_NTSC) - bstat->norm = VIDEO_MODE_NTSC; - else if (status & DECODER_STATUS_SECAM) - bstat->norm = VIDEO_MODE_SECAM; - else - bstat->norm = VIDEO_MODE_PAL; - - bstat->color = - (status & DECODER_STATUS_COLOR) ? 1 : 0; - } - - return res; - } - break; - - /* The new video4linux2 capture interface - much nicer than video4linux1, since - * it allows for integrating the JPEG capturing calls inside standard v4l2 - */ - - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr)); - - memset(cap, 0, sizeof(*cap)); - strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1); - strncpy(cap->driver, "zoran", sizeof(cap->driver)-1); - snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", - pci_name(zr->pci_dev)); - cap->version = - KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION, - RELEASE_VERSION); - cap->capabilities = ZORAN_V4L2_VID_FLAGS; - - return 0; - } - break; - - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *fmt = arg; - int index = fmt->index, num = -1, i, flag = 0, type = - fmt->type; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n", - ZR_DEVNAME(zr), fmt->index); - - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - flag = ZORAN_FORMAT_CAPTURE; - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - flag = ZORAN_FORMAT_PLAYBACK; - break; - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - flag = ZORAN_FORMAT_OVERLAY; - break; - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_ENUM_FMT - unknown type %d\n", - ZR_DEVNAME(zr), fmt->type); - return -EINVAL; - } - - for (i = 0; i < 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 == NUM_FORMATS) - return -EINVAL; - - memset(fmt, 0, sizeof(*fmt)); - fmt->index = index; - fmt->type = type; - strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1); - fmt->pixelformat = zoran_formats[i].fourcc; - if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) - fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; - - return 0; - } - break; - - case VIDIOC_G_FMT: - { - struct v4l2_format *fmt = arg; - int type = fmt->type; - - dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr)); - - memset(fmt, 0, sizeof(*fmt)); - fmt->type = type; - - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - - mutex_lock(&zr->resource_lock); - - fmt->fmt.win.w.left = fh->overlay_settings.x; - fmt->fmt.win.w.top = fh->overlay_settings.y; - fmt->fmt.win.w.width = fh->overlay_settings.width; - fmt->fmt.win.w.height = - fh->overlay_settings.height; - if (fh->overlay_settings.width * 2 > - BUZ_MAX_HEIGHT) - fmt->fmt.win.field = V4L2_FIELD_INTERLACED; - else - fmt->fmt.win.field = V4L2_FIELD_TOP; - - mutex_unlock(&zr->resource_lock); - - break; - - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - - mutex_lock(&zr->resource_lock); - - if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && - fh->map_mode == ZORAN_MAP_MODE_RAW) { - - fmt->fmt.pix.width = - fh->v4l_settings.width; - fmt->fmt.pix.height = - fh->v4l_settings.height; - fmt->fmt.pix.sizeimage = - fh->v4l_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 = 0; - if (BUZ_MAX_HEIGHT < - (fh->v4l_settings.height * 2)) - fmt->fmt.pix.field = - V4L2_FIELD_INTERLACED; - else - fmt->fmt.pix.field = - V4L2_FIELD_TOP; - - } else { - - fmt->fmt.pix.width = - fh->jpg_settings.img_width / - fh->jpg_settings.HorDcm; - fmt->fmt.pix.height = - fh->jpg_settings.img_height / - (fh->jpg_settings.VerDcm * - fh->jpg_settings.TmpDcm); - fmt->fmt.pix.sizeimage = - zoran_v4l2_calc_bufsize(&fh-> - jpg_settings); - fmt->fmt.pix.pixelformat = - V4L2_PIX_FMT_MJPEG; - if (fh->jpg_settings.TmpDcm == 1) - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_SEQ_BT : - V4L2_FIELD_SEQ_BT); - else - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_TOP : - V4L2_FIELD_BOTTOM); - - fmt->fmt.pix.bytesperline = 0; - fmt->fmt.pix.colorspace = - V4L2_COLORSPACE_SMPTE170M; - } - - mutex_unlock(&zr->resource_lock); - - break; - - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_G_FMT - unsupported type %d\n", - ZR_DEVNAME(zr), fmt->type); - return -EINVAL; - } - return 0; - } - break; - - case VIDIOC_S_FMT: - { - struct v4l2_format *fmt = arg; - int i, res = 0; - __le32 printformat; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ", - ZR_DEVNAME(zr), fmt->type); - - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - - dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", - fmt->fmt.win.w.left, fmt->fmt.win.w.top, - fmt->fmt.win.w.width, - fmt->fmt.win.w.height, - fmt->fmt.win.clipcount, - fmt->fmt.win.bitmap); - mutex_lock(&zr->resource_lock); - res = - setup_window(file, fmt->fmt.win.w.left, - fmt->fmt.win.w.top, - fmt->fmt.win.w.width, - fmt->fmt.win.w.height, - (struct video_clip __user *) - fmt->fmt.win.clips, - fmt->fmt.win.clipcount, - fmt->fmt.win.bitmap); - mutex_unlock(&zr->resource_lock); - return res; - break; - - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - - printformat = - __cpu_to_le32(fmt->fmt.pix.pixelformat); - dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n", - fmt->fmt.pix.width, fmt->fmt.pix.height, - fmt->fmt.pix.pixelformat, - (char *) &printformat); - - if (fmt->fmt.pix.bytesperline > 0) { - dprintk(5, - KERN_ERR "%s: bpl not supported\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - /* we can be requested to do JPEG/raw playback/capture */ - if (! - (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || - (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && - fmt->fmt.pix.pixelformat == - V4L2_PIX_FMT_MJPEG))) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n", - ZR_DEVNAME(zr), fmt->type, - fmt->fmt.pix.pixelformat, - (char *) &printformat); - return -EINVAL; - } - - if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { - mutex_lock(&zr->resource_lock); - - settings = fh->jpg_settings; - - if (fh->v4l_buffers.allocated || - fh->jpg_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_FMT - cannot change capture mode\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto sfmtjpg_unlock_and_return; - } - - /* we actually need to set 'real' parameters now */ - if ((fmt->fmt.pix.height * 2) > - BUZ_MAX_HEIGHT) - settings.TmpDcm = 1; - else - settings.TmpDcm = 2; - settings.decimation = 0; - if (fmt->fmt.pix.height <= - fh->jpg_settings.img_height / 2) - settings.VerDcm = 2; - else - settings.VerDcm = 1; - if (fmt->fmt.pix.width <= - fh->jpg_settings.img_width / 4) - settings.HorDcm = 4; - else if (fmt->fmt.pix.width <= - fh->jpg_settings.img_width / 2) - settings.HorDcm = 2; - else - settings.HorDcm = 1; - if (settings.TmpDcm == 1) - settings.field_per_buff = 2; - else - settings.field_per_buff = 1; - - /* check */ - if ((res = - zoran_check_jpg_settings(zr, - &settings))) - goto sfmtjpg_unlock_and_return; - - /* it's ok, so set them */ - fh->jpg_settings = settings; - - /* tell the user what we actually did */ - fmt->fmt.pix.width = - settings.img_width / settings.HorDcm; - fmt->fmt.pix.height = - settings.img_height * 2 / - (settings.TmpDcm * settings.VerDcm); - if (settings.TmpDcm == 1) - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_SEQ_TB : - V4L2_FIELD_SEQ_BT); - else - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_TOP : - V4L2_FIELD_BOTTOM); - fh->jpg_buffers.buffer_size = - zoran_v4l2_calc_bufsize(&fh-> - jpg_settings); - fmt->fmt.pix.sizeimage = - fh->jpg_buffers.buffer_size; - - /* we hereby abuse this variable to show that - * we're gonna do mjpeg capture */ - fh->map_mode = - (fmt->type == - V4L2_BUF_TYPE_VIDEO_CAPTURE) ? - ZORAN_MAP_MODE_JPG_REC : - ZORAN_MAP_MODE_JPG_PLAY; - sfmtjpg_unlock_and_return: - mutex_unlock(&zr->resource_lock); - } else { - for (i = 0; i < 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 (%4.4s)\n", - ZR_DEVNAME(zr), - fmt->fmt.pix.pixelformat, - (char *) &printformat); - return -EINVAL; - } - mutex_lock(&zr->resource_lock); - if (fh->jpg_buffers.allocated || - (fh->v4l_buffers.allocated && - fh->v4l_buffers.active != - ZORAN_FREE)) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_FMT - cannot change capture mode\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto sfmtv4l_unlock_and_return; - } - if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) - fmt->fmt.pix.height = - BUZ_MAX_HEIGHT; - if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) - fmt->fmt.pix.width = BUZ_MAX_WIDTH; - - if ((res = - zoran_v4l_set_format(file, - fmt->fmt.pix. - width, - fmt->fmt.pix. - height, - &zoran_formats - [i]))) - goto sfmtv4l_unlock_and_return; - - /* tell the user the - * results/missing stuff */ - fmt->fmt.pix.sizeimage = - fh->v4l_settings.height * - 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; - - fh->map_mode = ZORAN_MAP_MODE_RAW; - sfmtv4l_unlock_and_return: - mutex_unlock(&zr->resource_lock); - } - - break; - - default: - dprintk(3, "unsupported\n"); - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_FMT - unsupported type %d\n", - ZR_DEVNAME(zr), fmt->type); - return -EINVAL; - } - - return res; - } - break; - - case VIDIOC_G_FBUF: - { - struct v4l2_framebuffer *fb = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr)); - - memset(fb, 0, sizeof(*fb)); - mutex_lock(&zr->resource_lock); - fb->base = zr->buffer.base; - fb->fmt.width = zr->buffer.width; - fb->fmt.height = zr->buffer.height; - if (zr->overlay_settings.format) { - fb->fmt.pixelformat = - fh->overlay_settings.format->fourcc; - } - fb->fmt.bytesperline = zr->buffer.bytesperline; - mutex_unlock(&zr->resource_lock); - fb->fmt.colorspace = V4L2_COLORSPACE_SRGB; - fb->fmt.field = V4L2_FIELD_INTERLACED; - fb->flags = V4L2_FBUF_FLAG_OVERLAY; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - - return 0; - } - break; - - case VIDIOC_S_FBUF: - { - int i, res = 0; - struct v4l2_framebuffer *fb = arg; - __le32 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 < 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(file, fb->base, &zoran_formats[i], - fb->fmt.width, fb->fmt.height, - fb->fmt.bytesperline); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_OVERLAY: - { - int *on = arg, res; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n", - ZR_DEVNAME(zr), *on); - - mutex_lock(&zr->resource_lock); - res = setup_overlay(file, *on); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_REQBUFS: - { - struct v4l2_requestbuffers *req = arg; - int res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n", - ZR_DEVNAME(zr), req->type); - - if (req->memory != V4L2_MEMORY_MMAP) { - dprintk(1, - KERN_ERR - "%s: only MEMORY_MMAP capture is supported, not %d\n", - ZR_DEVNAME(zr), req->memory); - return -EINVAL; - } - - mutex_lock(&zr->resource_lock); - - if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_REQBUFS - buffers allready allocated\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto v4l2reqbuf_unlock_and_return; - } - - if (fh->map_mode == ZORAN_MAP_MODE_RAW && - req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - - /* control user input */ - if (req->count < 2) - req->count = 2; - if (req->count > v4l_nbufs) - req->count = v4l_nbufs; - fh->v4l_buffers.num_buffers = req->count; - - if (v4l_fbuffer_alloc(file)) { - res = -ENOMEM; - goto v4l2reqbuf_unlock_and_return; - } - - /* The next mmap will map the V4L buffers */ - fh->map_mode = ZORAN_MAP_MODE_RAW; - - } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || - fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { - - /* we need to calculate size ourselves now */ - if (req->count < 4) - req->count = 4; - if (req->count > jpg_nbufs) - req->count = jpg_nbufs; - fh->jpg_buffers.num_buffers = req->count; - fh->jpg_buffers.buffer_size = - zoran_v4l2_calc_bufsize(&fh->jpg_settings); - - if (jpg_fbuffer_alloc(file)) { - res = -ENOMEM; - goto v4l2reqbuf_unlock_and_return; - } - - /* The next mmap will map the MJPEG buffers */ - if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - fh->map_mode = ZORAN_MAP_MODE_JPG_REC; - else - fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY; - - } else { - dprintk(1, - KERN_ERR - "%s: VIDIOC_REQBUFS - unknown type %d\n", - ZR_DEVNAME(zr), req->type); - res = -EINVAL; - goto v4l2reqbuf_unlock_and_return; - } - v4l2reqbuf_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *buf = arg; - __u32 type = buf->type; - int index = buf->index, res; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n", - ZR_DEVNAME(zr), buf->index, buf->type); - - memset(buf, 0, sizeof(*buf)); - buf->type = type; - buf->index = index; - - mutex_lock(&zr->resource_lock); - res = zoran_v4l2_buffer_status(file, buf, buf->index); - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_QBUF: - { - struct v4l2_buffer *buf = arg; - int res = 0, codec_mode, buf_type; - - dprintk(3, - KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n", - ZR_DEVNAME(zr), buf->type, buf->index); - - mutex_lock(&zr->resource_lock); - - switch (fh->map_mode) { - case ZORAN_MAP_MODE_RAW: - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", - ZR_DEVNAME(zr), buf->type, fh->map_mode); - res = -EINVAL; - goto qbuf_unlock_and_return; - } - - res = zoran_v4l_queue_frame(file, buf->index); - if (res) - goto qbuf_unlock_and_return; - if (!zr->v4l_memgrab_active && - fh->v4l_buffers.active == ZORAN_LOCKED) - zr36057_set_memgrab(zr, 1); - break; - - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { - buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - codec_mode = BUZ_MODE_MOTION_DECOMPRESS; - } else { - buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - codec_mode = BUZ_MODE_MOTION_COMPRESS; - } - - if (buf->type != buf_type) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", - ZR_DEVNAME(zr), buf->type, fh->map_mode); - res = -EINVAL; - goto qbuf_unlock_and_return; - } - - res = - zoran_jpg_queue_frame(file, buf->index, - codec_mode); - if (res != 0) - goto qbuf_unlock_and_return; - if (zr->codec_mode == BUZ_MODE_IDLE && - fh->jpg_buffers.active == ZORAN_LOCKED) { - zr36057_enable_jpg(zr, codec_mode); - } - break; - - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_QBUF - unsupported type %d\n", - ZR_DEVNAME(zr), buf->type); - res = -EINVAL; - goto qbuf_unlock_and_return; - } - qbuf_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_DQBUF: - { - struct v4l2_buffer *buf = arg; - int res = 0, buf_type, num = -1; /* compiler borks here (?) */ - - dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n", - ZR_DEVNAME(zr), buf->type); - - mutex_lock(&zr->resource_lock); - - switch (fh->map_mode) { - case ZORAN_MAP_MODE_RAW: - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", - ZR_DEVNAME(zr), buf->type, fh->map_mode); - res = -EINVAL; - goto dqbuf_unlock_and_return; - } - - num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; - if (file->f_flags & O_NONBLOCK && - zr->v4l_buffers.buffer[num].state != - BUZ_STATE_DONE) { - res = -EAGAIN; - goto dqbuf_unlock_and_return; - } - res = v4l_sync(file, num); - if (res) - goto dqbuf_unlock_and_return; - else - zr->v4l_sync_tail++; - res = zoran_v4l2_buffer_status(file, buf, num); - break; - - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - { - struct zoran_sync bs; - - if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) - buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - else - buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (buf->type != buf_type) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", - ZR_DEVNAME(zr), buf->type, fh->map_mode); - res = -EINVAL; - goto dqbuf_unlock_and_return; - } - - num = - zr->jpg_pend[zr-> - jpg_que_tail & BUZ_MASK_FRAME]; - - if (file->f_flags & O_NONBLOCK && - zr->jpg_buffers.buffer[num].state != - BUZ_STATE_DONE) { - res = -EAGAIN; - goto dqbuf_unlock_and_return; - } - res = jpg_sync(file, &bs); - if (res) - goto dqbuf_unlock_and_return; - res = - zoran_v4l2_buffer_status(file, buf, bs.frame); - break; - } - - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_DQBUF - unsupported type %d\n", - ZR_DEVNAME(zr), buf->type); - res = -EINVAL; - goto dqbuf_unlock_and_return; - } - dqbuf_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_STREAMON: - { - int res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - - switch (fh->map_mode) { - case ZORAN_MAP_MODE_RAW: /* raw capture */ - if (zr->v4l_buffers.active != ZORAN_ACTIVE || - fh->v4l_buffers.active != ZORAN_ACTIVE) { - res = -EBUSY; - goto strmon_unlock_and_return; - } - - zr->v4l_buffers.active = fh->v4l_buffers.active = - ZORAN_LOCKED; - zr->v4l_settings = fh->v4l_settings; - - zr->v4l_sync_tail = zr->v4l_pend_tail; - if (!zr->v4l_memgrab_active && - zr->v4l_pend_head != zr->v4l_pend_tail) { - zr36057_set_memgrab(zr, 1); - } - break; - - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - /* what is the codec mode right now? */ - if (zr->jpg_buffers.active != ZORAN_ACTIVE || - fh->jpg_buffers.active != ZORAN_ACTIVE) { - res = -EBUSY; - goto strmon_unlock_and_return; - } - - zr->jpg_buffers.active = fh->jpg_buffers.active = - ZORAN_LOCKED; - - if (zr->jpg_que_head != zr->jpg_que_tail) { - /* Start the jpeg codec when the first frame is queued */ - jpeg_start(zr); - } - - break; - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_STREAMON - invalid map mode %d\n", - ZR_DEVNAME(zr), fh->map_mode); - res = -EINVAL; - goto strmon_unlock_and_return; - } - strmon_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_STREAMOFF: - { - int i, res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - - switch (fh->map_mode) { - case ZORAN_MAP_MODE_RAW: /* raw capture */ - if (fh->v4l_buffers.active == ZORAN_FREE && - zr->v4l_buffers.active != ZORAN_FREE) { - res = -EPERM; /* stay off other's settings! */ - goto strmoff_unlock_and_return; - } - if (zr->v4l_buffers.active == ZORAN_FREE) - goto strmoff_unlock_and_return; - - /* unload capture */ - if (zr->v4l_memgrab_active) { - unsigned long flags; - - spin_lock_irqsave(&zr->spinlock, flags); - zr36057_set_memgrab(zr, 0); - spin_unlock_irqrestore(&zr->spinlock, flags); - } - - for (i = 0; i < fh->v4l_buffers.num_buffers; i++) - zr->v4l_buffers.buffer[i].state = - BUZ_STATE_USER; - fh->v4l_buffers = zr->v4l_buffers; - - zr->v4l_buffers.active = fh->v4l_buffers.active = - ZORAN_FREE; - - zr->v4l_grab_seq = 0; - zr->v4l_pend_head = zr->v4l_pend_tail = 0; - zr->v4l_sync_tail = 0; - - break; - - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - if (fh->jpg_buffers.active == ZORAN_FREE && - zr->jpg_buffers.active != ZORAN_FREE) { - res = -EPERM; /* stay off other's settings! */ - goto strmoff_unlock_and_return; - } - if (zr->jpg_buffers.active == ZORAN_FREE) - goto strmoff_unlock_and_return; - - res = - jpg_qbuf(file, -1, - (fh->map_mode == - ZORAN_MAP_MODE_JPG_REC) ? - BUZ_MODE_MOTION_COMPRESS : - BUZ_MODE_MOTION_DECOMPRESS); - if (res) - goto strmoff_unlock_and_return; - break; - default: - dprintk(1, - KERN_ERR - "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", - ZR_DEVNAME(zr), fh->map_mode); - res = -EINVAL; - goto strmoff_unlock_and_return; - } - strmoff_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *ctrl = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n", - ZR_DEVNAME(zr), ctrl->id); - - /* we only support hue/saturation/contrast/brightness */ - if (ctrl->id < V4L2_CID_BRIGHTNESS || - ctrl->id > V4L2_CID_HUE) - return -EINVAL; - else { - int id = ctrl->id; - memset(ctrl, 0, sizeof(*ctrl)); - ctrl->id = id; - } - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1); - break; - case V4L2_CID_CONTRAST: - strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1); - break; - case V4L2_CID_SATURATION: - strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1); - break; - case V4L2_CID_HUE: - strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1); - break; - } - - ctrl->minimum = 0; - ctrl->maximum = 65535; - ctrl->step = 1; - ctrl->default_value = 32768; - ctrl->type = V4L2_CTRL_TYPE_INTEGER; - - return 0; - } - break; - - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n", - ZR_DEVNAME(zr), ctrl->id); - - /* we only support hue/saturation/contrast/brightness */ - if (ctrl->id < V4L2_CID_BRIGHTNESS || - ctrl->id > V4L2_CID_HUE) - return -EINVAL; - - mutex_lock(&zr->resource_lock); - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->value = zr->brightness; - break; - case V4L2_CID_CONTRAST: - ctrl->value = zr->contrast; - break; - case V4L2_CID_SATURATION: - ctrl->value = zr->saturation; - break; - case V4L2_CID_HUE: - ctrl->value = zr->hue; - break; - } - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - struct video_picture pict; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n", - ZR_DEVNAME(zr), ctrl->id); - - /* we only support hue/saturation/contrast/brightness */ - if (ctrl->id < V4L2_CID_BRIGHTNESS || - ctrl->id > V4L2_CID_HUE) - return -EINVAL; - - if (ctrl->value < 0 || ctrl->value > 65535) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n", - ZR_DEVNAME(zr), ctrl->value, ctrl->id); - return -EINVAL; - } - - mutex_lock(&zr->resource_lock); - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - zr->brightness = ctrl->value; - break; - case V4L2_CID_CONTRAST: - zr->contrast = ctrl->value; - break; - case V4L2_CID_SATURATION: - zr->saturation = ctrl->value; - break; - case V4L2_CID_HUE: - zr->hue = ctrl->value; - break; - } - pict.brightness = zr->brightness; - pict.contrast = zr->contrast; - pict.colour = zr->saturation; - pict.hue = zr->hue; - - decoder_command(zr, DECODER_SET_PICTURE, &pict); - - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *std = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n", - ZR_DEVNAME(zr), std->index); - - if (std->index < 0 || std->index >= (zr->card.norms + 1)) - return -EINVAL; - else { - int id = std->index; - memset(std, 0, sizeof(*std)); - std->index = id; - } - - if (std->index == zr->card.norms) { - /* if we have autodetect, ... */ - struct video_decoder_capability caps; - decoder_command(zr, DECODER_GET_CAPABILITIES, - &caps); - if (caps.flags & VIDEO_DECODER_AUTO) { - std->id = V4L2_STD_ALL; - strncpy(std->name, "Autodetect", sizeof(std->name)-1); - return 0; - } else - return -EINVAL; - } - switch (std->index) { - case 0: - std->id = V4L2_STD_PAL; - strncpy(std->name, "PAL", sizeof(std->name)-1); - std->frameperiod.numerator = 1; - std->frameperiod.denominator = 25; - std->framelines = zr->card.tvn[0]->Ht; - break; - case 1: - std->id = V4L2_STD_NTSC; - strncpy(std->name, "NTSC", sizeof(std->name)-1); - std->frameperiod.numerator = 1001; - std->frameperiod.denominator = 30000; - std->framelines = zr->card.tvn[1]->Ht; - break; - case 2: - std->id = V4L2_STD_SECAM; - strncpy(std->name, "SECAM", sizeof(std->name)-1); - std->frameperiod.numerator = 1; - std->frameperiod.denominator = 25; - std->framelines = zr->card.tvn[2]->Ht; - break; - } - - return 0; - } - break; - - case VIDIOC_G_STD: - { - v4l2_std_id *std = arg; - int norm; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - norm = zr->norm; - mutex_unlock(&zr->resource_lock); - - switch (norm) { - case VIDEO_MODE_PAL: - *std = V4L2_STD_PAL; - break; - case VIDEO_MODE_NTSC: - *std = V4L2_STD_NTSC; - break; - case VIDEO_MODE_SECAM: - *std = V4L2_STD_SECAM; - break; - } - - return 0; - } - break; - - case VIDIOC_S_STD: - { - int norm = -1, res = 0; - v4l2_std_id *std = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n", - ZR_DEVNAME(zr), (unsigned long long)*std); - - if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL)) - norm = VIDEO_MODE_PAL; - else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC)) - norm = VIDEO_MODE_NTSC; - else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM)) - norm = VIDEO_MODE_SECAM; - else if (*std == V4L2_STD_ALL) - norm = VIDEO_MODE_AUTO; - else { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_STD - invalid norm 0x%llx\n", - ZR_DEVNAME(zr), (unsigned long long)*std); - return -EINVAL; - } - - mutex_lock(&zr->resource_lock); - if ((res = zoran_set_norm(zr, norm))) - goto sstd_unlock_and_return; - - res = wait_grab_pending(zr); - sstd_unlock_and_return: - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *inp = arg; - int status; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n", - ZR_DEVNAME(zr), inp->index); - - if (inp->index < 0 || inp->index >= zr->card.inputs) - return -EINVAL; - else { - int id = inp->index; - memset(inp, 0, sizeof(*inp)); - inp->index = id; - } - - strncpy(inp->name, zr->card.input[inp->index].name, - sizeof(inp->name) - 1); - inp->type = V4L2_INPUT_TYPE_CAMERA; - inp->std = V4L2_STD_ALL; - - /* Get status of video decoder */ - mutex_lock(&zr->resource_lock); - decoder_command(zr, DECODER_GET_STATUS, &status); - mutex_unlock(&zr->resource_lock); - - if (!(status & DECODER_STATUS_GOOD)) { - inp->status |= V4L2_IN_ST_NO_POWER; - inp->status |= V4L2_IN_ST_NO_SIGNAL; - } - if (!(status & DECODER_STATUS_COLOR)) - inp->status |= V4L2_IN_ST_NO_COLOR; - - return 0; - } - break; - - case VIDIOC_G_INPUT: - { - int *input = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr)); - - mutex_lock(&zr->resource_lock); - *input = zr->input; - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_S_INPUT: - { - int *input = arg, res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n", - ZR_DEVNAME(zr), *input); - - mutex_lock(&zr->resource_lock); - if ((res = zoran_set_input(zr, *input))) - goto sinput_unlock_and_return; - - /* Make sure the changes come into effect */ - res = wait_grab_pending(zr); - sinput_unlock_and_return: - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOC_ENUMOUTPUT: - { - struct v4l2_output *outp = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n", - ZR_DEVNAME(zr), outp->index); - - if (outp->index != 0) - return -EINVAL; - - memset(outp, 0, sizeof(*outp)); - outp->index = 0; - outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; - strncpy(outp->name, "Autodetect", sizeof(outp->name)-1); - - return 0; - } - break; - - case VIDIOC_G_OUTPUT: - { - int *output = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr)); - - *output = 0; - - return 0; - } - break; - - case VIDIOC_S_OUTPUT: - { - int *output = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n", - ZR_DEVNAME(zr), *output); - - if (*output != 0) - return -EINVAL; - - return 0; - } - break; - - /* cropping (sub-frame capture) */ - case VIDIOC_CROPCAP: - { - struct v4l2_cropcap *cropcap = arg; - int type = cropcap->type, res = 0; - - dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n", - ZR_DEVNAME(zr), cropcap->type); - - memset(cropcap, 0, sizeof(*cropcap)); - cropcap->type = type; - - mutex_lock(&zr->resource_lock); - - if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && - (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - fh->map_mode == ZORAN_MAP_MODE_RAW)) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto cropcap_unlock_and_return; - } - - cropcap->bounds.top = cropcap->bounds.left = 0; - cropcap->bounds.width = BUZ_MAX_WIDTH; - cropcap->bounds.height = BUZ_MAX_HEIGHT; - cropcap->defrect.top = cropcap->defrect.left = 0; - cropcap->defrect.width = BUZ_MIN_WIDTH; - cropcap->defrect.height = BUZ_MIN_HEIGHT; - cropcap_unlock_and_return: - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOC_G_CROP: - { - struct v4l2_crop *crop = arg; - int type = crop->type, res = 0; - - dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n", - ZR_DEVNAME(zr), crop->type); - - memset(crop, 0, sizeof(*crop)); - crop->type = type; - - mutex_lock(&zr->resource_lock); - - if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && - (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - fh->map_mode == ZORAN_MAP_MODE_RAW)) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto gcrop_unlock_and_return; - } - - crop->c.top = fh->jpg_settings.img_y; - crop->c.left = fh->jpg_settings.img_x; - crop->c.width = fh->jpg_settings.img_width; - crop->c.height = fh->jpg_settings.img_height; - - gcrop_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - } - break; - - case VIDIOC_S_CROP: - { - struct v4l2_crop *crop = arg; - int res = 0; - - settings = fh->jpg_settings; - - dprintk(3, - KERN_ERR - "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n", - ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top, - crop->c.width, crop->c.height); - - mutex_lock(&zr->resource_lock); - - if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_S_CROP - cannot change settings while active\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto scrop_unlock_and_return; - } - - if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && - (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - fh->map_mode == ZORAN_MAP_MODE_RAW)) { - dprintk(1, - KERN_ERR - "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", - ZR_DEVNAME(zr)); - res = -EINVAL; - goto scrop_unlock_and_return; - } - - /* move into a form that we understand */ - settings.img_x = crop->c.left; - settings.img_y = crop->c.top; - settings.img_width = crop->c.width; - settings.img_height = crop->c.height; - - /* check validity */ - if ((res = zoran_check_jpg_settings(zr, &settings))) - goto scrop_unlock_and_return; - - /* accept */ - fh->jpg_settings = settings; - - scrop_unlock_and_return: - mutex_unlock(&zr->resource_lock); - return res; - } - break; - - case VIDIOC_G_JPEGCOMP: - { - struct v4l2_jpegcompression *params = arg; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n", - ZR_DEVNAME(zr)); - - memset(params, 0, sizeof(*params)); - - mutex_lock(&zr->resource_lock); - - params->quality = fh->jpg_settings.jpg_comp.quality; - params->APPn = fh->jpg_settings.jpg_comp.APPn; - memcpy(params->APP_data, - fh->jpg_settings.jpg_comp.APP_data, - fh->jpg_settings.jpg_comp.APP_len); - params->APP_len = fh->jpg_settings.jpg_comp.APP_len; - memcpy(params->COM_data, - fh->jpg_settings.jpg_comp.COM_data, - fh->jpg_settings.jpg_comp.COM_len); - params->COM_len = fh->jpg_settings.jpg_comp.COM_len; - params->jpeg_markers = - fh->jpg_settings.jpg_comp.jpeg_markers; - - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_S_JPEGCOMP: - { - struct v4l2_jpegcompression *params = arg; - int res = 0; - - settings = fh->jpg_settings; - - dprintk(3, - KERN_DEBUG - "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n", - ZR_DEVNAME(zr), params->quality, params->APPn, - params->APP_len, params->COM_len); - - settings.jpg_comp = *params; - - mutex_lock(&zr->resource_lock); - - if (fh->v4l_buffers.active != ZORAN_FREE || - fh->jpg_buffers.active != ZORAN_FREE) { - dprintk(1, - KERN_WARNING - "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", - ZR_DEVNAME(zr)); - res = -EBUSY; - goto sjpegc_unlock_and_return; - } - - if ((res = zoran_check_jpg_settings(zr, &settings))) - goto sjpegc_unlock_and_return; - if (!fh->jpg_buffers.allocated) - fh->jpg_buffers.buffer_size = - zoran_v4l2_calc_bufsize(&fh->jpg_settings); - fh->jpg_settings.jpg_comp = *params = settings.jpg_comp; - sjpegc_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return 0; - } - break; - - case VIDIOC_QUERYSTD: /* why is this useful? */ - { - v4l2_std_id *std = arg; - - dprintk(3, - KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n", - ZR_DEVNAME(zr), (unsigned long long)*std); - - if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC || - *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM && - zr->card.norms == 3)) { - return 0; - } - - return -EINVAL; - } - break; - - case VIDIOC_TRY_FMT: - { - struct v4l2_format *fmt = arg; - int res = 0; - - dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n", - ZR_DEVNAME(zr), fmt->type); - - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - mutex_lock(&zr->resource_lock); - - if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH) - fmt->fmt.win.w.width = BUZ_MAX_WIDTH; - if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH) - fmt->fmt.win.w.width = BUZ_MIN_WIDTH; - if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT) - fmt->fmt.win.w.height = BUZ_MAX_HEIGHT; - if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT) - fmt->fmt.win.w.height = BUZ_MIN_HEIGHT; - - mutex_unlock(&zr->resource_lock); - break; - - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (fmt->fmt.pix.bytesperline > 0) - return -EINVAL; - - mutex_lock(&zr->resource_lock); - - if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { - settings = fh->jpg_settings; - - /* we actually need to set 'real' parameters now */ - if ((fmt->fmt.pix.height * 2) > - BUZ_MAX_HEIGHT) - settings.TmpDcm = 1; - else - settings.TmpDcm = 2; - settings.decimation = 0; - if (fmt->fmt.pix.height <= - fh->jpg_settings.img_height / 2) - settings.VerDcm = 2; - else - settings.VerDcm = 1; - if (fmt->fmt.pix.width <= - fh->jpg_settings.img_width / 4) - settings.HorDcm = 4; - else if (fmt->fmt.pix.width <= - fh->jpg_settings.img_width / 2) - settings.HorDcm = 2; - else - settings.HorDcm = 1; - if (settings.TmpDcm == 1) - settings.field_per_buff = 2; - else - settings.field_per_buff = 1; - - /* check */ - if ((res = - zoran_check_jpg_settings(zr, - &settings))) - goto tryfmt_unlock_and_return; - - /* tell the user what we actually did */ - fmt->fmt.pix.width = - settings.img_width / settings.HorDcm; - fmt->fmt.pix.height = - settings.img_height * 2 / - (settings.TmpDcm * settings.VerDcm); - if (settings.TmpDcm == 1) - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_SEQ_TB : - V4L2_FIELD_SEQ_BT); - else - fmt->fmt.pix.field = - (fh->jpg_settings. - odd_even ? V4L2_FIELD_TOP : - V4L2_FIELD_BOTTOM); - - fmt->fmt.pix.sizeimage = - zoran_v4l2_calc_bufsize(&settings); - } else if (fmt->type == - V4L2_BUF_TYPE_VIDEO_CAPTURE) { - int i; - - for (i = 0; i < NUM_FORMATS; i++) - if (zoran_formats[i].fourcc == - fmt->fmt.pix.pixelformat) - break; - if (i == NUM_FORMATS) { - res = -EINVAL; - goto tryfmt_unlock_and_return; - } - - if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) - fmt->fmt.pix.width = BUZ_MAX_WIDTH; - if (fmt->fmt.pix.width < BUZ_MIN_WIDTH) - fmt->fmt.pix.width = BUZ_MIN_WIDTH; - if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) - fmt->fmt.pix.height = - BUZ_MAX_HEIGHT; - if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT) - fmt->fmt.pix.height = - BUZ_MIN_HEIGHT; - } else { - res = -EINVAL; - goto tryfmt_unlock_and_return; - } - tryfmt_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - return res; - break; - - default: - return -EINVAL; - } - - return 0; - } - break; - - 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; - 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->v4l_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->v4l_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->jpg_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->jpg_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: zoran_poll() - internal error, unknown map_mode=%d\n", - ZR_DEVNAME(zr), 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; - - map->count++; -} - -static void -zoran_vm_close (struct vm_area_struct *vma) -{ - struct zoran_mapping *map = vma->vm_private_data; - struct file *file = map->file; - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - int i; - - map->count--; - if (map->count == 0) { - switch (fh->map_mode) { - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - - dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n", - ZR_DEVNAME(zr)); - - for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { - if (fh->jpg_buffers.buffer[i].map == map) { - fh->jpg_buffers.buffer[i].map = - NULL; - } - } - kfree(map); - - for (i = 0; i < fh->jpg_buffers.num_buffers; i++) - if (fh->jpg_buffers.buffer[i].map) - break; - if (i == fh->jpg_buffers.num_buffers) { - mutex_lock(&zr->resource_lock); - - if (fh->jpg_buffers.active != ZORAN_FREE) { - jpg_qbuf(file, -1, zr->codec_mode); - zr->jpg_buffers.allocated = 0; - zr->jpg_buffers.active = - fh->jpg_buffers.active = - ZORAN_FREE; - } - //jpg_fbuffer_free(file); - fh->jpg_buffers.allocated = 0; - fh->jpg_buffers.ready_to_be_freed = 1; - - mutex_unlock(&zr->resource_lock); - } - - break; - - case ZORAN_MAP_MODE_RAW: - - dprintk(3, KERN_INFO "%s: munmap(V4L)\n", - ZR_DEVNAME(zr)); - - for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { - if (fh->v4l_buffers.buffer[i].map == map) { - /* unqueue/unmap */ - fh->v4l_buffers.buffer[i].map = - NULL; - } - } - kfree(map); - - for (i = 0; i < fh->v4l_buffers.num_buffers; i++) - if (fh->v4l_buffers.buffer[i].map) - break; - if (i == fh->v4l_buffers.num_buffers) { - mutex_lock(&zr->resource_lock); - - if (fh->v4l_buffers.active != ZORAN_FREE) { - unsigned long flags; - - spin_lock_irqsave(&zr->spinlock, flags); - zr36057_set_memgrab(zr, 0); - zr->v4l_buffers.allocated = 0; - zr->v4l_buffers.active = - fh->v4l_buffers.active = - ZORAN_FREE; - spin_unlock_irqrestore(&zr->spinlock, flags); - } - //v4l_fbuffer_free(file); - fh->v4l_buffers.allocated = 0; - fh->v4l_buffers.ready_to_be_freed = 1; - - mutex_unlock(&zr->resource_lock); - } - - break; - - default: - printk(KERN_ERR - "%s: munmap() - internal error - unknown map mode %d\n", - ZR_DEVNAME(zr), fh->map_mode); - break; - - } - } -} - -static struct vm_operations_struct zoran_vm_ops = { - .open = zoran_vm_open, - .close = zoran_vm_close, -}; - -static int -zoran_mmap (struct file *file, - struct vm_area_struct *vma) -{ - struct zoran_fh *fh = file->private_data; - struct zoran *zr = fh->zr; - unsigned long size = (vma->vm_end - vma->vm_start); - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - int i, j; - unsigned long page, start = vma->vm_start, todo, pos, fraglen; - int first, last; - struct zoran_mapping *map; - int res = 0; - - dprintk(3, - KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n", - ZR_DEVNAME(zr), - fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG", - vma->vm_start, vma->vm_end, size); - - if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || - !(vma->vm_flags & VM_WRITE)) { - dprintk(1, - KERN_ERR - "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n", - ZR_DEVNAME(zr)); - return -EINVAL; - } - - switch (fh->map_mode) { - - case ZORAN_MAP_MODE_JPG_REC: - case ZORAN_MAP_MODE_JPG_PLAY: - - /* lock */ - mutex_lock(&zr->resource_lock); - - /* Map the MJPEG buffers */ - if (!fh->jpg_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n", - ZR_DEVNAME(zr)); - res = -ENOMEM; - goto jpg_mmap_unlock_and_return; - } - - first = offset / fh->jpg_buffers.buffer_size; - last = first - 1 + size / fh->jpg_buffers.buffer_size; - if (offset % fh->jpg_buffers.buffer_size != 0 || - size % fh->jpg_buffers.buffer_size != 0 || first < 0 || - last < 0 || first >= fh->jpg_buffers.num_buffers || - last >= fh->jpg_buffers.num_buffers) { - dprintk(1, - KERN_ERR - "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", - ZR_DEVNAME(zr), offset, size, - fh->jpg_buffers.buffer_size, - fh->jpg_buffers.num_buffers); - res = -EINVAL; - goto jpg_mmap_unlock_and_return; - } - for (i = first; i <= last; i++) { - if (fh->jpg_buffers.buffer[i].map) { - dprintk(1, - KERN_ERR - "%s: mmap(MJPEG) - buffer %d already mapped\n", - ZR_DEVNAME(zr), i); - res = -EBUSY; - goto jpg_mmap_unlock_and_return; - } - } - - /* map these buffers (v4l_buffers[i]) */ - map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); - if (!map) { - res = -ENOMEM; - goto jpg_mmap_unlock_and_return; - } - map->file = file; - map->count = 1; - - vma->vm_ops = &zoran_vm_ops; - vma->vm_flags |= VM_DONTEXPAND; - vma->vm_private_data = map; - - for (i = first; i <= last; i++) { - for (j = 0; - j < fh->jpg_buffers.buffer_size / PAGE_SIZE; - j++) { - fraglen = - (le32_to_cpu(fh->jpg_buffers.buffer[i]. - frag_tab[2 * j + 1]) & ~1) << 1; - todo = size; - if (todo > fraglen) - todo = fraglen; - pos = - le32_to_cpu(fh->jpg_buffers. - buffer[i].frag_tab[2 * j]); - /* should just be pos on i386 */ - page = virt_to_phys(bus_to_virt(pos)) - >> PAGE_SHIFT; - if (remap_pfn_range(vma, start, page, - todo, PAGE_SHARED)) { - dprintk(1, - KERN_ERR - "%s: zoran_mmap(V4L) - remap_pfn_range failed\n", - ZR_DEVNAME(zr)); - res = -EAGAIN; - goto jpg_mmap_unlock_and_return; - } - size -= todo; - start += todo; - if (size == 0) - break; - if (le32_to_cpu(fh->jpg_buffers.buffer[i]. - frag_tab[2 * j + 1]) & 1) - break; /* was last fragment */ - } - fh->jpg_buffers.buffer[i].map = map; - if (size == 0) - break; - - } - jpg_mmap_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - break; - - case ZORAN_MAP_MODE_RAW: - - mutex_lock(&zr->resource_lock); - - /* Map the V4L buffers */ - if (!fh->v4l_buffers.allocated) { - dprintk(1, - KERN_ERR - "%s: zoran_mmap(V4L) - buffers not yet allocated\n", - ZR_DEVNAME(zr)); - res = -ENOMEM; - goto v4l_mmap_unlock_and_return; - } - - first = offset / fh->v4l_buffers.buffer_size; - last = first - 1 + size / fh->v4l_buffers.buffer_size; - if (offset % fh->v4l_buffers.buffer_size != 0 || - size % fh->v4l_buffers.buffer_size != 0 || first < 0 || - last < 0 || first >= fh->v4l_buffers.num_buffers || - last >= fh->v4l_buffers.buffer_size) { - dprintk(1, - KERN_ERR - "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", - ZR_DEVNAME(zr), offset, size, - fh->v4l_buffers.buffer_size, - fh->v4l_buffers.num_buffers); - res = -EINVAL; - goto v4l_mmap_unlock_and_return; - } - for (i = first; i <= last; i++) { - if (fh->v4l_buffers.buffer[i].map) { - dprintk(1, - KERN_ERR - "%s: mmap(V4L) - buffer %d already mapped\n", - ZR_DEVNAME(zr), i); - res = -EBUSY; - goto v4l_mmap_unlock_and_return; - } - } - - /* map these buffers (v4l_buffers[i]) */ - map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); - if (!map) { - res = -ENOMEM; - goto v4l_mmap_unlock_and_return; - } - map->file = file; - map->count = 1; - - vma->vm_ops = &zoran_vm_ops; - vma->vm_flags |= VM_DONTEXPAND; - vma->vm_private_data = map; - - for (i = first; i <= last; i++) { - todo = size; - if (todo > fh->v4l_buffers.buffer_size) - todo = fh->v4l_buffers.buffer_size; - page = fh->v4l_buffers.buffer[i].fbuffer_phys; - if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, - todo, PAGE_SHARED)) { - dprintk(1, - KERN_ERR - "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n", - ZR_DEVNAME(zr)); - res = -EAGAIN; - goto v4l_mmap_unlock_and_return; - } - size -= todo; - start += todo; - fh->v4l_buffers.buffer[i].map = map; - if (size == 0) - break; - } - v4l_mmap_unlock_and_return: - mutex_unlock(&zr->resource_lock); - - break; - - default: - dprintk(1, - KERN_ERR - "%s: zoran_mmap() - internal error - unknown map mode %d\n", - ZR_DEVNAME(zr), fh->map_mode); - break; - } - - return 0; -} - -static const struct file_operations zoran_fops = { - .owner = THIS_MODULE, - .open = zoran_open, - .release = zoran_close, - .ioctl = zoran_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = v4l_compat_ioctl32, -#endif - .llseek = no_llseek, - .read = zoran_read, - .write = zoran_write, - .mmap = zoran_mmap, - .poll = zoran_poll, -}; - -struct video_device zoran_template __devinitdata = { - .name = ZORAN_NAME, - .fops = &zoran_fops, - .release = &zoran_vdev_release, - .minor = -1 -}; - |