/* * 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 * * Changes for BUZ by Wolfgang Scherr * * Changes for DC10/DC30 by Laurent Pinchart * * Changes for LML33R10 by Maxim Yevtyushkin * * Changes for videodev2/v4l2 by Ronald Bultje * * Based on * * Miro DC10 driver * Copyright (C) 1999 Wolfgang Scherr * * Iomega Buz driver version 1.0 * Copyright (C) 1999 Rainer Johanni * * buz.0.0.3 * Copyright (C) 1998 Dave Perks * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #define MAP_NR(x) virt_to_page(x) #define ZORAN_HARDWARE VID_HARDWARE_ZR36067 #define ZORAN_VID_TYPE ( \ VID_TYPE_CAPTURE | \ VID_TYPE_OVERLAY | \ VID_TYPE_CLIPPING | \ VID_TYPE_FRAMERAM | \ VID_TYPE_SCALES | \ VID_TYPE_MJPEG_DECODER | \ VID_TYPE_MJPEG_ENCODER \ ) #include #include "videocodec.h" #include #include #include #include #include #include #include "zoran.h" #include "zoran_device.h" #include "zoran_card.h" #ifdef HAVE_V4L2 /* we declare some card type definitions here, they mean * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */ #define ZORAN_V4L2_VID_FLAGS ( \ V4L2_CAP_STREAMING |\ V4L2_CAP_VIDEO_CAPTURE |\ V4L2_CAP_VIDEO_OUTPUT |\ V4L2_CAP_VIDEO_OVERLAY \ ) #endif #include const struct zoran_format zoran_formats[] = { { .name = "15-bit RGB", .palette = VIDEO_PALETTE_RGB555, #ifdef HAVE_V4L2 #ifdef __LITTLE_ENDIAN .fourcc = V4L2_PIX_FMT_RGB555, #else .fourcc = V4L2_PIX_FMT_RGB555X, #endif .colorspace = V4L2_COLORSPACE_SRGB, #endif .depth = 15, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, }, { .name = "16-bit RGB", .palette = VIDEO_PALETTE_RGB565, #ifdef HAVE_V4L2 #ifdef __LITTLE_ENDIAN .fourcc = V4L2_PIX_FMT_RGB565, #else .fourcc = V4L2_PIX_FMT_RGB565X, #endif .colorspace = V4L2_COLORSPACE_SRGB, #endif .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, }, { .name = "24-bit RGB", .palette = VIDEO_PALETTE_RGB24, #ifdef HAVE_V4L2 #ifdef __LITTLE_ENDIAN .fourcc = V4L2_PIX_FMT_BGR24, #else .fourcc = V4L2_PIX_FMT_RGB24, #endif .colorspace = V4L2_COLORSPACE_SRGB, #endif .depth = 24, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, }, { .name = "32-bit RGB", .palette = VIDEO_PALETTE_RGB32, #ifdef HAVE_V4L2 #ifdef __LITTLE_ENDIAN .fourcc = V4L2_PIX_FMT_BGR32, #else .fourcc = V4L2_PIX_FMT_RGB32, #endif .colorspace = V4L2_COLORSPACE_SRGB, #endif .depth = 32, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, }, { .name = "4:2:2, packed, YUYV", .palette = VIDEO_PALETTE_YUV422, #ifdef HAVE_V4L2 .fourcc = V4L2_PIX_FMT_YUYV, .colorspace = V4L2_COLORSPACE_SMPTE170M, #endif .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, }, { .name = "Hardware-encoded Motion-JPEG", .palette = -1, #ifdef HAVE_V4L2 .fourcc = V4L2_PIX_FMT_MJPEG, .colorspace = V4L2_COLORSPACE_SMPTE170M, #endif .depth = 0, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_PLAYBACK | ZORAN_FORMAT_COMPRESSED, } }; static const int zoran_num_formats = (sizeof(zoran_formats) / sizeof(struct zoran_format)); // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined #if !defined(CONFIG_BIGPHYS_AREA) //#undef CONFIG_BIGPHYS_AREA #define BUZ_USE_HIMEM #endif #if defined(CONFIG_BIGPHYS_AREA) # include #endif extern int *zr_debug; #define dprintk(num, format, args...) \ do { \ if (*zr_debug >= num) \ printk(format, ##args); \ } while (0) extern int v4l_nbufs; extern int v4l_bufsize; extern int jpg_nbufs; extern int jpg_bufsize; extern int pass_through; static int lock_norm = 0; /* 1=Don't change TV standard (norm) */ module_param(lock_norm, int, 0); MODULE_PARM_DESC(lock_norm, "Users can't change norm"); #ifdef HAVE_V4L2 /* small helper function for calculating buffersizes for v4l2 * we calculate the nearest higher power-of-two, which * will be the recommended buffersize */ static __u32 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) { __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; __u32 num = (1024 * 512) / (div); __u32 result = 2; num--; while (num) { num >>= 1; result <<= 1; } if (result > jpg_bufsize) return jpg_bufsize; if (result < 8192) return 8192; return result; } #endif /* forward references */ static void v4l_fbuffer_free(struct file *file); static void jpg_fbuffer_free(struct file *file); /* * Allocate the V4L grab buffers * * These have to be pysically contiguous. * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc * else we try to allocate them with bigphysarea_alloc_pages * if the bigphysarea patch is present in the kernel, * else we try to use high memory (if the user has bootet * Linux with the necessary memory left over). */ #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) static unsigned long get_high_mem (unsigned long size) { /* * Check if there is usable memory at the end of Linux memory * of at least size. Return the physical address of this memory, * return 0 on failure. * * The idea is from Alexandro Rubini's book "Linux device drivers". * The driver from him which is downloadable from O'Reilly's * web site misses the "virt_to_phys(high_memory)" part * (and therefore doesn't work at all - at least with 2.2.x kernels). * * It should be unnecessary to mention that THIS IS DANGEROUS, * if more than one driver at a time has the idea to use this memory!!!! */ volatile unsigned char __iomem *mem; unsigned char c; unsigned long hi_mem_ph; unsigned long i; /* Map the high memory to user space */ hi_mem_ph = virt_to_phys(high_memory); mem = ioremap(hi_mem_ph, size); if (!mem) { dprintk(1, KERN_ERR "%s: get_high_mem() - ioremap failed\n", ZORAN_NAME); return 0; } for (i = 0; i < size; i++) { /* Check if it is memory */ c = i & 0xff; writeb(c, mem + i); if (readb(mem + i) != c) break; c = 255 - c; writeb(c, mem + i); if (readb(mem + i) != c) break; writeb(0, mem + i); /* zero out memory */ /* give the kernel air to breath */ if ((i & 0x3ffff) == 0x3ffff) schedule(); } iounmap(mem); if (i != size) { dprintk(1, KERN_ERR "%s: get_high_mem() - requested %lu, avail %lu\n", ZORAN_NAME, size, i); return 0; } return hi_mem_ph; } #endif static int v4l_fbuffer_alloc (struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int i, off; unsigned char *mem; #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) unsigned long pmem = 0; #endif /* we might have old buffers lying around... */ if (fh->v4l_buffers.ready_to_be_freed) { v4l_fbuffer_free(file); } for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { if (fh->v4l_buffers.buffer[i].fbuffer) dprintk(2, KERN_WARNING "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n", ZR_DEVNAME(zr), i); //udelay(20); if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { /* Use kmalloc */ mem = (unsigned char *) kmalloc(fh->v4l_buffers. buffer_size, GFP_KERNEL); if (mem == 0) { dprintk(1, KERN_ERR "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n", ZR_DEVNAME(zr), i); v4l_fbuffer_free(file); return -ENOBUFS; } fh->v4l_buffers.buffer[i].fbuffer = mem; fh->v4l_buffers.buffer[i].fbuffer_phys = virt_to_phys(mem); fh->v4l_buffers.buffer[i].fbuffer_bus = virt_to_bus(mem); for (off = 0; off < fh->v4l_buffers.buffer_size; off += PAGE_SIZE) SetPageReserved(MAP_NR(mem + off)); dprintk(4, KERN_INFO "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n", ZR_DEVNAME(zr), i, (unsigned long) mem, virt_to_bus(mem)); } else { #if defined(CONFIG_BIGPHYS_AREA) /* Use bigphysarea_alloc_pages */ int n = (fh->v4l_buffers.buffer_size + PAGE_SIZE - 1) / PAGE_SIZE; mem = (unsigned char *) bigphysarea_alloc_pages(n, 0, GFP_KERNEL); if (mem == 0) { dprintk(1, KERN_ERR "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n", ZR_DEVNAME(zr), i); v4l_fbuffer_free(file); return -ENOBUFS; } fh->v4l_buffers.buffer[i].fbuffer = mem; fh->v4l_buffers.buffer[i].fbuffer_phys = virt_to_phys(mem); fh->v4l_buffers.buffer[i].fbuffer_bus = virt_to_bus(mem); dprintk(4, KERN_INFO "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n", ZR_DEVNAME(zr), i, (unsigned) mem, (unsigned) virt_to_bus(mem)); /* Zero out the allocated memory */ memset(fh->v4l_buffers.buffer[i].fbuffer, 0, fh->v4l_buffers.buffer_size); #elif defined(BUZ_USE_HIMEM) /* Use high memory which has been left at boot time */ /* Ok., Ok. this is an evil hack - we make * the assumption that physical addresses are * the same as bus addresses (true at least * for Intel processors). The whole method of * obtaining and using this memory is not very * nice - but I hope it saves some poor users * from kernel hacking, which might have even * more evil results */ if (i == 0) { int size = fh->v4l_buffers.num_buffers * fh->v4l_buffers.buffer_size; pmem = get_high_mem(size); if (pmem == 0) { dprintk(1, KERN_ERR "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n", ZR_DEVNAME(zr), size >> 10); return -ENOBUFS; } fh->v4l_buffers.buffer[0].fbuffer = NULL; fh->v4l_buffers.buffer[0].fbuffer_phys = pmem; fh->v4l_buffers.buffer[0].fbuffer_bus = pmem; dprintk(4, KERN_INFO "%s: v4l_fbuffer_alloc() - using %d KB high memory\n", ZR_DEVNAME(zr), size >> 10); } else { fh->v4l_buffers.buffer[i].fbuffer = NULL; fh->v4l_buffers.buffer[i].fbuffer_phys = pmem + i * fh->v4l_buffers.buffer_size; fh->v4l_buffers.buffer[i].fbuffer_bus = pmem + i * fh->v4l_buffers.buffer_size; } #else /* No bigphysarea present, usage of high memory disabled, * but user wants buffers of more than MAX_KMALLOC_MEM */ dprintk(1, KERN_ERR "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n", ZR_DEVNAME(zr)); dprintk(1, KERN_ERR "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n", ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers, fh->v4l_buffers.buffer_size >> 10); return -ENOBUFS; #endif } } fh->v4l_buffers.allocated = 1; return 0; } /* free the V4L grab buffers */ static void v4l_fbuffer_free (struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int i, off; unsigned char *mem; dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr)); for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { if (!fh->v4l_buffers.buffer[i].fbuffer) continue; if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { mem = fh->v4l_buffers.buffer[i].fbuffer; for (off = 0; off < fh->v4l_buffers.buffer_size; off += PAGE_SIZE) ClearPageReserved(MAP_NR(mem + off)); kfree((void *) fh->v4l_buffers.buffer[i].fbuffer); } #if defined(CONFIG_BIGPHYS_AREA) else bigphysarea_free_pages((void *) fh->v4l_buffers. buffer[i].fbuffer); #endif fh->v4l_buffers.buffer[i].fbuffer = NULL; } fh->v4l_buffers.allocated = 0; fh->v4l_buffers.ready_to_be_freed = 0; } /* * Allocate the MJPEG grab buffers. * * If the requested buffer size is smaller than MAX_KMALLOC_MEM, * kmalloc is used to request a physically contiguous area, * else we allocate the memory in framgents with get_zeroed_page. * * If a Natoma chipset is present and this is a revision 1 zr36057, * each MJPEG buffer needs to be physically contiguous. * (RJ: This statement is from Dave Perks' original driver, * I could never check it because I have a zr36067) * The driver cares about this because it reduces the buffer * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation). * * RJ: The contents grab buffers needs never be accessed in the driver. * Therefore there is no need to allocate them with vmalloc in order * to get a contiguous virtual memory space. * I don't understand why many other drivers first allocate them with * vmalloc (which uses internally also get_zeroed_page, but delivers you * virtual addresses) and then again have to make a lot of efforts * to get the physical address. * * Ben Capper: * On big-endian architectures (such as ppc) some extra steps * are needed. When reading and writing to the stat_com array * and fragment buffers, the device expects to see little- * endian values. The use of cpu_to_le32() and le32_to_cpu() * in this function (and one or two others in zoran_device.c) * ensure that these values are always stored in little-endian * form, regardless of architecture. The zr36057 does Very Bad * Things on big endian architectures if the stat_com array * and fragment buffers are not little-endian. */ static int jpg_fbuffer_alloc (struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int i, j, off; unsigned long mem; /* we might have old buffers lying around */ if (fh->jpg_buffers.ready_to_be_freed) { jpg_fbuffer_free(file); } for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { if (fh->jpg_buffers.buffer[i].frag_tab) dprintk(2, KERN_WARNING "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n", ZR_DEVNAME(zr), i); /* Allocate fragment table for this buffer */ mem = get_zeroed_page(GFP_KERNEL); if (mem == 0) { dprintk(1, KERN_ERR "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n", ZR_DEVNAME(zr), i); jpg_fbuffer_free(file); return -ENOBUFS; } memset((void *) mem, 0, PAGE_SIZE); fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem; fh->jpg_buffers.buffer[i].frag_tab_bus = virt_to_bus((void *) mem); //if (alloc_contig) { if (fh->jpg_buffers.need_contiguous) { mem = (unsigned long) kmalloc(fh->jpg_buffers. buffer_size, GFP_KERNEL); if (mem == 0) { dprintk(1, KERN_ERR "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n", ZR_DEVNAME(zr), i); jpg_fbuffer_free(file); return -ENOBUFS; } fh->jpg_buffers.buffer[i].frag_tab[0] = cpu_to_le32(virt_to_bus((void *) mem)); fh->jpg_buffers.buffer[i].frag_tab[1] = cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1); for (off = 0; off < fh->jpg_buffers.buffer_size; off += PAGE_SIZE) SetPageReserved(MAP_NR(mem + off)); } else { /* jpg_bufsize is allreay page aligned */ for (j = 0; j < fh->jpg_buffers.buffer_size / PAGE_SIZE; j++) { mem = get_zeroed_page(GFP_KERNEL); if (mem == 0) { dprintk(1, KERN_ERR "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n", ZR_DEVNAME(zr), i); jpg_fbuffer_free(file); return -ENOBUFS; } fh->jpg_buffers.buffer[i].frag_tab[2 * j] = cpu_to_le32(virt_to_bus((void *) mem)); fh->jpg_buffers.buffer[i].frag_tab[2 * j + 1] = cpu_to_le32((PAGE_SIZE / 4) << 1); SetPageReserved(MAP_NR(mem)); } fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1); } } dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n", ZR_DEVNAME(zr), (fh->jpg_buffers.num_buffers * fh->jpg_buffers.buffer_size) >> 10); fh->jpg_buffers.allocated = 1; return 0; } /* free the MJPEG grab buffers */ static void jpg_fbuffer_free (struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int i, j, off; unsigned char *mem; dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr)); for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { if (!fh->jpg_buffers.buffer[i].frag_tab) continue; //if (alloc_contig) { if (fh->jpg_buffers.need_contiguous) { if (fh->jpg_buffers.buffer[i].frag_tab[0]) { mem = (unsigned char *) bus_to_virt(le32_to_cpu( fh->jpg_buffers.buffer[i].frag_tab[0])); for (off = 0; off < fh->jpg_buffers.buffer_size; off += PAGE_SIZE) ClearPageReserved(MAP_NR (mem + off)); kfree(mem); fh->jpg_buffers.buffer[i].frag_tab[0] = 0; fh->jpg_buffers.buffer[i].frag_tab[1] = 0; } } else { for (j = 0; j < fh->jpg_buffers.buffer_size / PAGE_SIZE; j++) { if (!fh->jpg_buffers.buffer[i]. frag_tab[2 * j]) break; ClearPageReserved(MAP_NR (bus_to_virt (le32_to_cpu (fh->jpg_buffers. buffer[i].frag_tab[2 * j])))); free_page((unsigned long) bus_to_virt (le32_to_cpu (fh->jpg_buffers. buffer[i]. frag_tab[2 * j]))); fh->jpg_buffers.buffer[i].frag_tab[2 * j] = 0; fh->jpg_buffers.buffer[i].frag_tab[2 * j + 1] = 0; } } free_page((unsigned long) fh->jpg_buffers.buffer[i]. frag_tab); fh->jpg_buffers.buffer[i].frag_tab = NULL; } fh->jpg_buffers.allocated = 0; fh->jpg_buffers.ready_to_be_freed = 0; } /* * V4L Buffer grabbing */ static int zoran_v4l_set_format (struct file *file, int width, int height, const struct zoran_format *format) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int bpp; /* Check size and format of the grab wanted */ if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { dprintk(1, KERN_ERR "%s: v4l_set_format() - wrong frame size (%dx%d)\n", ZR_DEVNAME(zr), width, height); return -EINVAL; } bpp = (format->depth + 7) / 8; /* Check against available buffer size */ if (height * width * bpp > fh->v4l_buffers.buffer_size) { dprintk(1, KERN_ERR "%s: v4l_set_format() - video buffer size (%d kB) is too small\n", ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10); return -EINVAL; } /* The video front end needs 4-byte alinged line sizes */ if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { dprintk(1, KERN_ERR "%s: v4l_set_format() - wrong frame alingment\n", ZR_DEVNAME(zr)); return -EINVAL; } fh->v4l_settings.width = width; fh->v4l_settings.height = height; fh->v4l_settings.format = format; fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; return 0; } static int zoran_v4l_queue_frame (struct file *file, int num) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; unsigned long flags; int res = 0; if (!fh->v4l_buffers.allocated) { dprintk(1, KERN_ERR "%s: v4l_queue_frame() - buffers not yet allocated\n", ZR_DEVNAME(zr)); res = -ENOMEM; } /* No grabbing outside the buffer range! */ if (num >= fh->v4l_buffers.num_buffers || num < 0) { dprintk(1, KERN_ERR "%s: v4l_queue_frame() - buffer %d is out of range\n", ZR_DEVNAME(zr), num); res = -EINVAL; } spin_lock_irqsave(&zr->spinlock, flags); if (fh->v4l_buffers.active == ZORAN_FREE) { if (zr->v4l_buffers.active == ZORAN_FREE) { zr->v4l_buffers = fh->v4l_buffers; fh->v4l_buffers.active = ZORAN_ACTIVE; } else { dprintk(1, KERN_ERR "%s: v4l_queue_frame() - another session is already capturing\n", ZR_DEVNAME(zr)); res = -EBUSY; } } /* make sure a grab isn't going on currently with this buffer */ if (!res) { switch (zr->v4l_buffers.buffer[num].state) { default: case BUZ_STATE_PEND: if (zr->v4l_buffers.active == ZORAN_FREE) { fh->v4l_buffers.active = ZORAN_FREE; zr->v4l_buffers.allocated = 0; } res = -EBUSY; /* what are you doing? */ break; case BUZ_STATE_DONE: dprintk(2, KERN_WARNING "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n", ZR_DEVNAME(zr), num); case BUZ_STATE_USER: /* since there is at least one unused buffer there's room for at least * one more pend[] entry */ zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num; zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; zr->v4l_buffers.buffer[num].bs.length = fh->v4l_settings.bytesperline * zr->v4l_settings.height; fh->v4l_buffers.buffer[num] = zr->v4l_buffers.buffer[num]; break; } } spin_unlock_irqrestore(&zr->spinlock, flags); if (!res && zr->v4l_buffers.active == ZORAN_FREE) zr->v4l_buffers.active = fh->v4l_buffers.active; return res; } static int v4l_grab (struct file *file, struct video_mmap *mp) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int res = 0, i; for (i = 0; i < zoran_num_formats; i++) { if (zoran_formats[i].palette == mp->format && zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE && !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)) break; } if (i == zoran_num_formats || zoran_formats[i].depth == 0) { dprintk(1, KERN_ERR "%s: v4l_grab() - wrong bytes-per-pixel format\n", ZR_DEVNAME(zr)); return -EINVAL; } /* * To minimize the time spent in the IRQ routine, we avoid setting up * the video front end there. * If this grab has different parameters from a running streaming capture * we stop the streaming capture and start it over again. */ if (zr->v4l_memgrab_active && (zr->v4l_settings.width != mp->width || zr->v4l_settings.height != mp->height || zr->v4l_settings.format->palette != mp->format)) { res = wait_grab_pending(zr); if (res) return res; } if ((res = zoran_v4l_set_format(file, mp->width, mp->height, &zoran_formats[i]))) return res; zr->v4l_settings = fh->v4l_settings; /* queue the frame in the pending queue */ if ((res = zoran_v4l_queue_frame(file, mp->frame))) { fh->v4l_buffers.active = ZORAN_FREE; return res; } /* put the 36057 into frame grabbing mode */ if (!res && !zr->v4l_memgrab_active) zr36057_set_memgrab(zr, 1); //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr)); return res; } /* * Sync on a V4L buffer */ static int v4l_sync (struct file *file, int frame) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; unsigned long flags; if (fh->v4l_buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: v4l_sync() - no grab active for this session\n", ZR_DEVNAME(zr)); return -EINVAL; } /* check passed-in frame number */ if (frame >= fh->v4l_buffers.num_buffers || frame < 0) { dprintk(1, KERN_ERR "%s: v4l_sync() - frame %d is invalid\n", ZR_DEVNAME(zr), frame); return -EINVAL; } /* Check if is buffer was queued at all */ if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { dprintk(1, KERN_ERR "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n", ZR_DEVNAME(zr)); return -EPROTO; } /* wait on this buffer to get ready */ if (!wait_event_interruptible_timeout(zr->v4l_capq, (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) return -ETIME; if (signal_pending(current)) return -ERESTARTSYS; /* buffer should now be in BUZ_STATE_DONE */ if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) dprintk(2, KERN_ERR "%s: v4l_sync() - internal state error\n", ZR_DEVNAME(zr)); zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; spin_lock_irqsave(&zr->spinlock, flags); /* Check if streaming capture has finished */ if (zr->v4l_pend_tail == zr->v4l_pend_head) { zr36057_set_memgrab(zr, 0); if (zr->v4l_buffers.active == ZORAN_ACTIVE) { fh->v4l_buffers.active = zr->v4l_buffers.active = ZORAN_FREE; zr->v4l_buffers.allocated = 0; } } spin_unlock_irqrestore(&zr->spinlock, flags); return 0; } /* * Queue a MJPEG buffer for capture/playback */ static int zoran_jpg_queue_frame (struct file *file, int num, enum zoran_codec_mode mode) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; unsigned long flags; int res = 0; /* Check if buffers are allocated */ if (!fh->jpg_buffers.allocated) { dprintk(1, KERN_ERR "%s: jpg_queue_frame() - buffers not yet allocated\n", ZR_DEVNAME(zr)); return -ENOMEM; } /* No grabbing outside the buffer range! */ if (num >= fh->jpg_buffers.num_buffers || num < 0) { dprintk(1, KERN_ERR "%s: jpg_queue_frame() - buffer %d out of range\n", ZR_DEVNAME(zr), num); return -EINVAL; } /* what is the codec mode right now? */ if (zr->codec_mode == BUZ_MODE_IDLE) { zr->jpg_settings = fh->jpg_settings; } else if (zr->codec_mode != mode) { /* wrong codec mode active - invalid */ dprintk(1, KERN_ERR "%s: jpg_queue_frame() - codec in wrong mode\n", ZR_DEVNAME(zr)); return -EINVAL; } if (fh->jpg_buffers.active == ZORAN_FREE) { if (zr->jpg_buffers.active == ZORAN_FREE) { zr->jpg_buffers = fh->jpg_buffers; fh->jpg_buffers.active = ZORAN_ACTIVE; } else { dprintk(1, KERN_ERR "%s: jpg_queue_frame() - another session is already capturing\n", ZR_DEVNAME(zr)); res = -EBUSY; } } if (!res && zr->codec_mode == BUZ_MODE_IDLE) { /* Ok load up the jpeg codec */ zr36057_enable_jpg(zr, mode); } spin_lock_irqsave(&zr->spinlock, flags); if (!res) { switch (zr->jpg_buffers.buffer[num].state) { case BUZ_STATE_DONE: dprintk(2, KERN_WARNING "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n", ZR_DEVNAME(zr)); case BUZ_STATE_USER: /* since there is at least one unused buffer there's room for at *least one more pend[] entry */ zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num; zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; fh->jpg_buffers.buffer[num] = zr->jpg_buffers.buffer[num]; zoran_feed_stat_com(zr); break; default: case BUZ_STATE_DMA: case BUZ_STATE_PEND: if (zr->jpg_buffers.active == ZORAN_FREE) { fh->jpg_buffers.active = ZORAN_FREE; zr->jpg_buffers.allocated = 0; } res = -EBUSY; /* what are you doing? */ break; } } spin_unlock_irqrestore(&zr->spinlock, flags); if (!res && zr->jpg_buffers.active == ZORAN_FREE) { zr->jpg_buffers.active = fh->jpg_buffers.active; } return res; } static int jpg_qbuf (struct file *file, int frame, enum zoran_codec_mode mode) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int res = 0; /* Does the user want to stop streaming? */ if (frame < 0) { if (zr->codec_mode == mode) { if (fh->jpg_buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: jpg_qbuf(-1) - session not active\n", ZR_DEVNAME(zr)); return -EINVAL; } fh->jpg_buffers.active = zr->jpg_buffers.active = ZORAN_FREE; zr->jpg_buffers.allocated = 0; zr36057_enable_jpg(zr, BUZ_MODE_IDLE); return 0; } else { dprintk(1, KERN_ERR "%s: jpg_qbuf() - stop streaming but not in streaming mode\n", ZR_DEVNAME(zr)); return -EINVAL; } } if ((res = zoran_jpg_queue_frame(file, frame, mode))) return res; /* Start the jpeg codec when the first frame is queued */ if (!res && zr->jpg_que_head == 1) jpeg_start(zr); return res; } /* * Sync on a MJPEG buffer */ static int jpg_sync (struct file *file, struct zoran_sync *bs) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; unsigned long flags; int frame; if (fh->jpg_buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: jpg_sync() - capture is not currently active\n", ZR_DEVNAME(zr)); return -EINVAL; } if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { dprintk(1, KERN_ERR "%s: jpg_sync() - codec not in streaming mode\n", ZR_DEVNAME(zr)); return -EINVAL; } if (!wait_event_interruptible_timeout(zr->jpg_capq, (zr->jpg_que_tail != zr->jpg_dma_tail || zr->jpg_dma_tail == zr->jpg_dma_head), 10*HZ)) { int isr; btand(~ZR36057_JMC_Go_en, ZR36057_JMC); udelay(1); zr->codec->control(zr->codec, CODEC_G_STATUS, sizeof(isr), &isr); dprintk(1, KERN_ERR "%s: jpg_sync() - timeout: codec isr=0x%02x\n", ZR_DEVNAME(zr), isr); return -ETIME; } if (signal_pending(current)) return -ERESTARTSYS; spin_lock_irqsave(&zr->spinlock, flags); if (zr->jpg_dma_tail != zr->jpg_dma_head) frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; else frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; /* buffer should now be in BUZ_STATE_DONE */ if (*zr_debug > 0) if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) dprintk(2, KERN_ERR "%s: jpg_sync() - internal state error\n", ZR_DEVNAME(zr)); *bs = zr->jpg_buffers.buffer[frame].bs; bs->frame = frame; zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; spin_unlock_irqrestore(&zr->spinlock, flags); return 0; } static void zoran_open_init_session (struct file *file) { int i; struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; /* Per default, map the V4L Buffers */ fh->map_mode = ZORAN_MAP_MODE_RAW; /* take over the card's current settings */ fh->overlay_settings = zr->overlay_settings; fh->overlay_settings.is_set = 0; fh->overlay_settings.format = zr->overlay_settings.format; fh->overlay_active = ZORAN_FREE; /* v4l settings */ fh->v4l_settings = zr->v4l_settings; /* v4l_buffers */ memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct)); for (i = 0; i < VIDEO_MAX_FRAME; i++) { fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ fh->v4l_buffers.buffer[i].bs.frame = i; } fh->v4l_buffers.allocated = 0; fh->v4l_buffers.ready_to_be_freed = 0; fh->v4l_buffers.active = ZORAN_FREE; fh->v4l_buffers.buffer_size = v4l_bufsize; fh->v4l_buffers.num_buffers = v4l_nbufs; /* jpg settings */ fh->jpg_settings = zr->jpg_settings; /* jpg_buffers */ memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct)); for (i = 0; i < BUZ_MAX_FRAME; i++) { fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ fh->jpg_buffers.buffer[i].bs.frame = i; } fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous; fh->jpg_buffers.allocated = 0; fh->jpg_buffers.ready_to_be_freed = 0; fh->jpg_buffers.active = ZORAN_FREE; fh->jpg_buffers.buffer_size = jpg_bufsize; fh->jpg_buffers.num_buffers = jpg_nbufs; } static void zoran_close_end_session (struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; /* overlay */ if (fh->overlay_active != ZORAN_FREE) { fh->overlay_active = zr->overlay_active = ZORAN_FREE; zr->v4l_overlay_active = 0; if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 0); zr->overlay_mask = NULL; } /* v4l capture */ if (fh->v4l_buffers.active != ZORAN_FREE) { zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->v4l_buffers.active = ZORAN_FREE; } /* v4l buffers */ if (fh->v4l_buffers.allocated || fh->v4l_buffers.ready_to_be_freed) { v4l_fbuffer_free(file); } /* jpg capture */ if (fh->jpg_buffers.active != ZORAN_FREE) { zr36057_enable_jpg(zr, BUZ_MODE_IDLE); zr->jpg_buffers.allocated = 0; zr->jpg_buffers.active = fh->jpg_buffers.active = ZORAN_FREE; } /* jpg buffers */ if (fh->jpg_buffers.allocated || fh->jpg_buffers.ready_to_be_freed) { jpg_fbuffer_free(file); } } /* * Open a zoran card. Right now the flags stuff is just playing */ static int zoran_open (struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); struct zoran *zr = NULL; struct zoran_fh *fh; int i, res, first_open = 0, have_module_locks = 0; /* find the device */ for (i = 0; i < zoran_num; i++) { if (zoran[i].video_dev->minor == minor) { zr = &zoran[i]; break; } } if (!zr) { dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME); res = -ENODEV; goto open_unlock_and_return; } /* see fs/device.c - the kernel already locks during open(), * so locking ourselves only causes deadlocks */ /*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, current->pid, zr->user); /* now, create the open()-specific file_ops struct */ fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); if (!fh) { dprintk(1, KERN_ERR "%s: zoran_open() - allocation of zoran_fh failed\n", ZR_DEVNAME(zr)); res = -ENOMEM; goto open_unlock_and_return; } /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows * on norm-change! */ fh->overlay_mask = kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); if (!fh->overlay_mask) { dprintk(1, KERN_ERR "%s: zoran_open() - allocation of overlay_mask failed\n", ZR_DEVNAME(zr)); kfree(fh); res = -ENOMEM; goto open_unlock_and_return; } if (zr->user++ == 0) first_open = 1; /*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, current->pid, 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 (*zr_debug > 1) print_interrupts(zr); /* Overlay off */ zr->v4l_overlay_active = 0; zr36057_overlay(zr, 0); zr->overlay_mask = NULL; /* capture off */ wake_up_interruptible(&zr->v4l_capq); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = ZORAN_FREE; zoran_set_pci_master(zr, 0); if (!pass_through) { /* Switch to color bar */ int zero = 0, two = 2; decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero); encoder_command(zr, ENCODER_SET_INPUT, &two); } } file->private_data = NULL; kfree(fh->overlay_mask); kfree(fh); /* release locks on the i2c modules */ module_put(zr->decoder->driver->driver.owner); if (zr->encoder) { module_put(zr->encoder->driver->driver.owner); } module_put(THIS_MODULE); /*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; /* we need a bytesperline value, even if not given */ if (!bytesperline) bytesperline = width * ((fmt->depth + 7) & ~7) / 8; #if 0 if (zr->overlay_active) { /* dzjee... stupid users... don't even bother to turn off * overlay before changing the memory location... * normally, we would return errors here. However, one of * the tools that does this is... xawtv! and since xawtv * is used by +/- 99% of the users, we'd rather be user- * friendly and silently do as if nothing went wrong */ dprintk(3, KERN_ERR "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n", ZR_DEVNAME(zr)); zr36057_overlay(zr, 0); } #endif if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { dprintk(1, KERN_ERR "%s: setup_fbuffer() - no valid overlay format given\n", ZR_DEVNAME(zr)); return -EINVAL; } if (height <= 0 || width <= 0 || bytesperline <= 0) { dprintk(1, KERN_ERR "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n", ZR_DEVNAME(zr), width, height, bytesperline); return -EINVAL; } if (bytesperline & 3) { dprintk(1, KERN_ERR "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n", ZR_DEVNAME(zr), bytesperline); return -EINVAL; } zr->buffer.base = (void *) ((unsigned long) base & ~3); zr->buffer.height = height; zr->buffer.width = width; zr->buffer.depth = fmt->depth; zr->overlay_settings.format = fmt; zr->buffer.bytesperline = bytesperline; /* The user should set new window parameters */ zr->overlay_settings.is_set = 0; return 0; } static int setup_window (struct file *file, int x, int y, int width, int height, struct video_clip __user *clips, int clipcount, void __user *bitmap) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; struct video_clip *vcp = NULL; int on, end; if (!zr->buffer.base) { dprintk(1, KERN_ERR "%s: setup_window() - frame buffer has to be set first\n", ZR_DEVNAME(zr)); return -EINVAL; } if (!fh->overlay_settings.format) { dprintk(1, KERN_ERR "%s: setup_window() - no overlay format set\n", ZR_DEVNAME(zr)); return -EINVAL; } /* * The video front end needs 4-byte alinged line sizes, we correct that * silently here if necessary */ if (zr->buffer.depth == 15 || zr->buffer.depth == 16) { end = (x + width) & ~1; /* round down */ x = (x + 1) & ~1; /* round up */ width = end - x; } if (zr->buffer.depth == 24) { end = (x + width) & ~3; /* round down */ x = (x + 3) & ~3; /* round up */ width = end - x; } if (width > BUZ_MAX_WIDTH) width = BUZ_MAX_WIDTH; if (height > BUZ_MAX_HEIGHT) height = BUZ_MAX_HEIGHT; /* Check for vaild parameters */ if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { dprintk(1, KERN_ERR "%s: setup_window() - width = %d or height = %d invalid\n", ZR_DEVNAME(zr), width, height); return -EINVAL; } fh->overlay_settings.x = x; fh->overlay_settings.y = y; fh->overlay_settings.width = width; fh->overlay_settings.height = height; fh->overlay_settings.clipcount = clipcount; /* * If an overlay is running, we have to switch it off * and switch it on again in order to get the new settings in effect. * * We also want to avoid that the overlay mask is written * when an overlay is running. */ on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && zr->overlay_active != ZORAN_FREE && fh->overlay_active != ZORAN_FREE; if (on) zr36057_overlay(zr, 0); /* * Write the overlay mask if clips are wanted. * We prefer a bitmap. */ if (bitmap) { /* fake value - it just means we want clips */ fh->overlay_settings.clipcount = 1; if (copy_from_user(fh->overlay_mask, bitmap, (width * height + 7) / 8)) { return -EFAULT; } } else if (clipcount > 0) { /* write our own bitmap from the clips */ vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4)); if (vcp == NULL) { dprintk(1, KERN_ERR "%s: setup_window() - Alloc of clip mask failed\n", ZR_DEVNAME(zr)); return -ENOMEM; } if (copy_from_user (vcp, clips, sizeof(struct video_clip) * clipcount)) { vfree(vcp); return -EFAULT; } write_overlay_mask(file, vcp, clipcount); vfree(vcp); } fh->overlay_settings.is_set = 1; if (fh->overlay_active != ZORAN_FREE && zr->overlay_active != ZORAN_FREE) zr->overlay_settings = fh->overlay_settings; if (on) zr36057_overlay(zr, 1); /* Make sure the changes come into effect */ return wait_grab_pending(zr); } static int setup_overlay (struct file *file, int on) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; /* If there is nothing to do, return immediatly */ if ((on && fh->overlay_active != ZORAN_FREE) || (!on && fh->overlay_active == ZORAN_FREE)) return 0; /* check whether we're touching someone else's overlay */ if (on && zr->overlay_active != ZORAN_FREE && fh->overlay_active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: setup_overlay() - overlay is already active for another session\n", ZR_DEVNAME(zr)); return -EBUSY; } if (!on && zr->overlay_active != ZORAN_FREE && fh->overlay_active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: setup_overlay() - you cannot cancel someone else's session\n", ZR_DEVNAME(zr)); return -EPERM; } if (on == 0) { zr->overlay_active = fh->overlay_active = ZORAN_FREE; zr->v4l_overlay_active = 0; /* When a grab is running, the video simply * won't be switched on any more */ if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 0); zr->overlay_mask = NULL; } else { if (!zr->buffer.base || !fh->overlay_settings.is_set) { dprintk(1, KERN_ERR "%s: setup_overlay() - buffer or window not set\n", ZR_DEVNAME(zr)); return -EINVAL; } if (!fh->overlay_settings.format) { dprintk(1, KERN_ERR "%s: setup_overlay() - no overlay format set\n", ZR_DEVNAME(zr)); return -EINVAL; } zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; zr->v4l_overlay_active = 1; zr->overlay_mask = fh->overlay_mask; zr->overlay_settings = fh->overlay_settings; if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 1); /* When a grab is running, the video will be * switched on when grab is finished */ } /* Make sure the changes come into effect */ return wait_grab_pending(zr); } #ifdef HAVE_V4L2 /* get the status of a buffer in the clients buffer queue */ static int zoran_v4l2_buffer_status (struct file *file, struct v4l2_buffer *buf, int num) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; buf->flags = V4L2_BUF_FLAG_MAPPED; switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: /* check range */ if (num < 0 || num >= fh->v4l_buffers.num_buffers || !fh->v4l_buffers.allocated) { dprintk(1, KERN_ERR "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", ZR_DEVNAME(zr)); return -EINVAL; } buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf->length = fh->v4l_buffers.buffer_size; /* get buffer */ buf->bytesused = fh->v4l_buffers.buffer[num].bs.length; if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE || fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) { buf->sequence = fh->v4l_buffers.buffer[num].bs.seq; buf->flags |= V4L2_BUF_FLAG_DONE; buf->timestamp = fh->v4l_buffers.buffer[num].bs.timestamp; } else { buf->flags |= V4L2_BUF_FLAG_QUEUED; } if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) buf->field = V4L2_FIELD_TOP; else buf->field = V4L2_FIELD_INTERLACED; break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: /* check range */ if (num < 0 || num >= fh->jpg_buffers.num_buffers || !fh->jpg_buffers.allocated) { dprintk(1, KERN_ERR "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", ZR_DEVNAME(zr)); return -EINVAL; } buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? V4L2_BUF_TYPE_VIDEO_CAPTURE : V4L2_BUF_TYPE_VIDEO_OUTPUT; buf->length = fh->jpg_buffers.buffer_size; /* these variables are only written after frame has been captured */ if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE || fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) { buf->sequence = fh->jpg_buffers.buffer[num].bs.seq; buf->timestamp = fh->jpg_buffers.buffer[num].bs.timestamp; buf->bytesused = fh->jpg_buffers.buffer[num].bs.length; buf->flags |= V4L2_BUF_FLAG_DONE; } else { buf->flags |= V4L2_BUF_FLAG_QUEUED; } /* which fields are these? */ if (fh->jpg_settings.TmpDcm != 1) buf->field = fh->jpg_settings. odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; else buf->field = fh->jpg_settings. odd_even ? V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT; break; default: dprintk(5, KERN_ERR "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n", ZR_DEVNAME(zr), buf->type, fh->map_mode); return -EINVAL; } buf->memory = V4L2_MEMORY_MMAP; buf->index = num; buf->m.offset = buf->length * num; return 0; } #endif static int zoran_set_norm (struct zoran *zr, int norm) /* VIDEO_MODE_* */ { int norm_encoder, on; if (zr->v4l_buffers.active != ZORAN_FREE || zr->jpg_buffers.active != ZORAN_FREE) { dprintk(1, KERN_WARNING "%s: set_norm() called while in playback/capture mode\n", ZR_DEVNAME(zr)); return -EBUSY; } if (lock_norm && norm != zr->norm) { if (lock_norm > 1) { dprintk(1, KERN_WARNING "%s: set_norm() - TV standard is locked, can not switch norm\n", ZR_DEVNAME(zr)); return -EPERM; } else { dprintk(1, KERN_WARNING "%s: set_norm() - TV standard is locked, norm was not changed\n", ZR_DEVNAME(zr)); norm = zr->norm; } } if (norm != VIDEO_MODE_AUTO && (norm < 0 || norm >= zr->card.norms || !zr->card.tvn[norm])) { dprintk(1, KERN_ERR "%s: set_norm() - unsupported norm %d\n", ZR_DEVNAME(zr), norm); return -EINVAL; } if (norm == VIDEO_MODE_AUTO) { int status; /* if we have autodetect, ... */ struct video_decoder_capability caps; decoder_command(zr, DECODER_GET_CAPABILITIES, &caps); if (!(caps.flags & VIDEO_DECODER_AUTO)) { dprintk(1, KERN_ERR "%s: norm=auto unsupported\n", ZR_DEVNAME(zr)); return -EINVAL; } decoder_command(zr, DECODER_SET_NORM, &norm); /* let changes come into effect */ ssleep(2); decoder_command(zr, DECODER_GET_STATUS, &status); if (!(status & DECODER_STATUS_GOOD)) { dprintk(1, KERN_ERR "%s: set_norm() - no norm detected\n", ZR_DEVNAME(zr)); /* reset norm */ decoder_command(zr, DECODER_SET_NORM, &zr->norm); return -EIO; } if (status & DECODER_STATUS_NTSC) norm = VIDEO_MODE_NTSC; else if (status & DECODER_STATUS_SECAM) norm = VIDEO_MODE_SECAM; else norm = VIDEO_MODE_PAL; } zr->timing = zr->card.tvn[norm]; norm_encoder = norm; /* We switch overlay off and on since a change in the * norm needs different VFE settings */ on = zr->overlay_active && !zr->v4l_memgrab_active; if (on) zr36057_overlay(zr, 0); decoder_command(zr, DECODER_SET_NORM, &norm); encoder_command(zr, ENCODER_SET_NORM, &norm_encoder); if (on) zr36057_overlay(zr, 1); /* Make sure the changes come into effect */ zr->norm = norm; return 0; } static int zoran_set_input (struct zoran *zr, int input) { int realinput; if (input == zr->input) { return 0; } if (zr->v4l_buffers.active != ZORAN_FREE || zr->jpg_buffers.active != ZORAN_FREE) { dprintk(1, KERN_WARNING "%s: set_input() called while in playback/capture mode\n", ZR_DEVNAME(zr)); return -EBUSY; } if (input < 0 || input >= zr->card.inputs) { dprintk(1, KERN_ERR "%s: set_input() - unnsupported input %d\n", ZR_DEVNAME(zr), input); return -EINVAL; } realinput = zr->card.input[input].muxsel; zr->input = input; decoder_command(zr, DECODER_SET_INPUT, &realinput); return 0; } /* * ioctl routine */ static int zoran_do_ioctl (struct inode *inode, struct file *file, unsigned int cmd, void *arg) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; /* CAREFUL: used in multiple places here */ struct zoran_jpg_settings settings; /* we might have older buffers lying around... We don't want * to wait, but we do want to try cleaning them up ASAP. So * we try to obtain the lock and free them. If that fails, we * don't do anything and wait for the next turn. In the end, * zoran_close() or a new allocation will still free them... * This is just a 'the sooner the better' extra 'feature' * * We don't free the buffers right on munmap() because that * causes oopses (kfree() inside munmap() oopses for no * apparent reason - it's also not reproduceable in any way, * but moving the free code outside the munmap() handler fixes * all this... If someone knows why, please explain me (Ronald) */ if (!!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)); 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 < zoran_num_formats; i++) { const struct zoran_format *fmt = &zoran_formats[i]; if (fmt->palette != -1 && fmt->flags & ZORAN_FORMAT_OVERLAY && fmt->palette == vpict->palette && fmt->depth == vpict->depth) break; } if (i == zoran_num_formats) { dprintk(1, KERN_ERR "%s: VIDIOCSPICT - Invalid palette %d\n", ZR_DEVNAME(zr), vpict->palette); return -EINVAL; } 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 < zoran_num_formats; i++) if (zoran_formats[i].depth == vbuf->depth) break; if (i == zoran_num_formats) { dprintk(1, KERN_ERR "%s: VIDIOCSFBUF - invalid fbuf depth %d\n", ZR_DEVNAME(zr), vbuf->depth); return -EINVAL; } 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; #ifdef HAVE_V4L2 /* The new video4linux2 capture interface - much nicer than video4linux1, since * it allows for integrating the JPEG capturing calls inside standard v4l2 */ case VIDIOC_QUERYCAP: { struct v4l2_capability *cap = arg; dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr)); memset(cap, 0, sizeof(*cap)); strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)); strncpy(cap->driver, "zoran", sizeof(cap->driver)); snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", pci_name(zr->pci_dev)); cap->version = KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION, RELEASE_VERSION); cap->capabilities = ZORAN_V4L2_VID_FLAGS; return 0; } break; case VIDIOC_ENUM_FMT: { struct v4l2_fmtdesc *fmt = arg; int index = fmt->index, num = -1, i, flag = 0, type = fmt->type; dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n", ZR_DEVNAME(zr), fmt->index); switch (fmt->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: flag = ZORAN_FORMAT_CAPTURE; break; case V4L2_BUF_TYPE_VIDEO_OUTPUT: flag = ZORAN_FORMAT_PLAYBACK; break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: flag = ZORAN_FORMAT_OVERLAY; break; default: dprintk(1, KERN_ERR "%s: VIDIOC_ENUM_FMT - unknown type %d\n", ZR_DEVNAME(zr), fmt->type); return -EINVAL; } for (i = 0; i < zoran_num_formats; i++) { if (zoran_formats[i].flags & flag) num++; if (num == fmt->index) break; } if (fmt->index < 0 /* late, but not too late */ || i == zoran_num_formats) return -EINVAL; memset(fmt, 0, sizeof(*fmt)); fmt->index = index; fmt->type = type; strncpy(fmt->description, zoran_formats[i].name, 31); fmt->pixelformat = zoran_formats[i].fourcc; if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; return 0; } break; case VIDIOC_G_FMT: { struct v4l2_format *fmt = arg; int type = fmt->type; dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr)); memset(fmt, 0, sizeof(*fmt)); fmt->type = type; switch (fmt->type) { case V4L2_BUF_TYPE_VIDEO_OVERLAY: 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_buffers.buffer_size; fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc; fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace; fmt->fmt.pix.bytesperline = 0; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; else fmt->fmt.pix.field = V4L2_FIELD_TOP; } else { fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm; fmt->fmt.pix.height = fh->jpg_settings.img_height / (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm); fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh-> jpg_settings); fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG; if (fh->jpg_settings.TmpDcm == 1) fmt->fmt.pix.field = (fh->jpg_settings. odd_even ? V4L2_FIELD_SEQ_BT : V4L2_FIELD_SEQ_BT); else fmt->fmt.pix.field = (fh->jpg_settings. odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); fmt->fmt.pix.bytesperline = 0; fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; } 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; __u32 printformat; dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ", ZR_DEVNAME(zr), fmt->type); switch (fmt->type) { case V4L2_BUF_TYPE_VIDEO_OVERLAY: dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", fmt->fmt.win.w.left, fmt->fmt.win.w.top, fmt->fmt.win.w.width, fmt->fmt.win.w.height, fmt->fmt.win.clipcount, fmt->fmt.win.bitmap); 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 < zoran_num_formats; i++) if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc) break; if (i == zoran_num_formats) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n", ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat, (char *) &printformat); return -EINVAL; } 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_buffers.buffer_size /*zr->gbpl * zr->gheight */ ; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; else fmt->fmt.pix.field = V4L2_FIELD_TOP; fh->map_mode = ZORAN_MAP_MODE_RAW; sfmtv4l_unlock_and_return: 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; __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat); dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n", ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height, fb->fmt.bytesperline, fb->fmt.pixelformat, (char *) &printformat); for (i = 0; i < zoran_num_formats; i++) if (zoran_formats[i].fourcc == fb->fmt.pixelformat) break; if (i == zoran_num_formats) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", ZR_DEVNAME(zr), fb->fmt.pixelformat, (char *) &printformat); return -EINVAL; } 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) zr36057_set_memgrab(zr, 0); for (i = 0; i < fh->v4l_buffers.num_buffers; i++) zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER; fh->v4l_buffers = zr->v4l_buffers; zr->v4l_buffers.active = fh->v4l_buffers.active = ZORAN_FREE; zr->v4l_grab_seq = 0; zr->v4l_pend_head = zr->v4l_pend_tail = 0; zr->v4l_sync_tail = 0; break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: if (fh->jpg_buffers.active == ZORAN_FREE && zr->jpg_buffers.active != ZORAN_FREE) { res = -EPERM; /* stay off other's settings! */ goto strmoff_unlock_and_return; } if (zr->jpg_buffers.active == ZORAN_FREE) goto strmoff_unlock_and_return; res = jpg_qbuf(file, -1, (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? BUZ_MODE_MOTION_COMPRESS : BUZ_MODE_MOTION_DECOMPRESS); if (res) goto strmoff_unlock_and_return; break; default: dprintk(1, KERN_ERR "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", ZR_DEVNAME(zr), fh->map_mode); res = -EINVAL; goto strmoff_unlock_and_return; } strmoff_unlock_and_return: 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", 31); break; case V4L2_CID_CONTRAST: strncpy(ctrl->name, "Contrast", 31); break; case V4L2_CID_SATURATION: strncpy(ctrl->name, "Saturation", 31); break; case V4L2_CID_HUE: strncpy(ctrl->name, "Hue", 31); break; } ctrl->minimum = 0; ctrl->maximum = 65535; ctrl->step = 1; ctrl->default_value = 32768; ctrl->type = V4L2_CTRL_TYPE_INTEGER; return 0; } break; case VIDIOC_G_CTRL: { struct v4l2_control *ctrl = arg; dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n", ZR_DEVNAME(zr), ctrl->id); /* we only support hue/saturation/contrast/brightness */ if (ctrl->id < V4L2_CID_BRIGHTNESS || ctrl->id > V4L2_CID_HUE) return -EINVAL; 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", 31); return 0; } else return -EINVAL; } switch (std->index) { case 0: std->id = V4L2_STD_PAL; strncpy(std->name, "PAL", 31); std->frameperiod.numerator = 1; std->frameperiod.denominator = 25; std->framelines = zr->card.tvn[0]->Ht; break; case 1: std->id = V4L2_STD_NTSC; strncpy(std->name, "NTSC", 31); std->frameperiod.numerator = 1001; std->frameperiod.denominator = 30000; std->framelines = zr->card.tvn[1]->Ht; break; case 2: std->id = V4L2_STD_SECAM; strncpy(std->name, "SECAM", 31); std->frameperiod.numerator = 1; std->frameperiod.denominator = 25; std->framelines = zr->card.tvn[2]->Ht; break; } return 0; } break; case VIDIOC_G_STD: { v4l2_std_id *std = arg; int norm; dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr)); 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) norm = VIDEO_MODE_PAL; else if (*std == V4L2_STD_NTSC) norm = VIDEO_MODE_NTSC; else if (*std == V4L2_STD_SECAM) norm = VIDEO_MODE_SECAM; else if (*std == V4L2_STD_ALL) norm = VIDEO_MODE_AUTO; else { dprintk(1, KERN_ERR "%s: VIDIOC_S_STD - invalid norm 0x%llx\n", ZR_DEVNAME(zr), (unsigned long long)*std); return -EINVAL; } 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", 31); return 0; } break; case VIDIOC_G_OUTPUT: { int *output = arg; dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr)); *output = 0; return 0; } break; case VIDIOC_S_OUTPUT: { int *output = arg; dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n", ZR_DEVNAME(zr), *output); if (*output != 0) return -EINVAL; return 0; } break; /* cropping (sub-frame capture) */ case VIDIOC_CROPCAP: { struct v4l2_cropcap *cropcap = arg; int type = cropcap->type, res = 0; dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n", ZR_DEVNAME(zr), cropcap->type); memset(cropcap, 0, sizeof(*cropcap)); cropcap->type = type; 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 < zoran_num_formats; i++) if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat) break; if (i == zoran_num_formats) { res = -EINVAL; goto tryfmt_unlock_and_return; } if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) fmt->fmt.pix.width = BUZ_MAX_WIDTH; if (fmt->fmt.pix.width < BUZ_MIN_WIDTH) fmt->fmt.pix.width = BUZ_MIN_WIDTH; if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) fmt->fmt.pix.height = BUZ_MAX_HEIGHT; if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT) fmt->fmt.pix.height = BUZ_MIN_HEIGHT; } else { res = -EINVAL; goto tryfmt_unlock_and_return; } tryfmt_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; break; default: return -EINVAL; } return 0; } break; #endif default: dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n", ZR_DEVNAME(zr), cmd); return -ENOIOCTLCMD; break; } return 0; } static int zoran_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl); } static unsigned int zoran_poll (struct file *file, poll_table *wait) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; wait_queue_head_t *queue = NULL; int res = 0, frame; /* we should check whether buffers are ready to be synced on * (w/o waits - O_NONBLOCK) here * if ready for read (sync), return POLLIN|POLLRDNORM, * if ready for write (sync), return POLLOUT|POLLWRNORM, * if error, return POLLERR, * if no buffers queued or so, return POLLNVAL */ mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: if (fh->v4l_buffers.active == ZORAN_FREE || zr->v4l_pend_head == zr->v4l_pend_tail) { dprintk(1, "%s: zoran_poll() - no buffers queued\n", ZR_DEVNAME(zr)); res = POLLNVAL; goto poll_unlock_and_return; } queue = &zr->v4l_capq; frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; poll_wait(file, queue, wait); if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) res = POLLIN | POLLRDNORM; break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: if (fh->jpg_buffers.active == ZORAN_FREE || zr->jpg_que_head == zr->jpg_que_tail) { dprintk(1, "%s: zoran_poll() - no buffers queued\n", ZR_DEVNAME(zr)); res = POLLNVAL; goto poll_unlock_and_return; } queue = &zr->jpg_capq; frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; poll_wait(file, queue, wait); if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) res = POLLIN | POLLRDNORM; else res = POLLOUT | POLLWRNORM; } break; default: dprintk(1, "%s: zoran_poll() - internal error, unknown map_mode=%d\n", ZR_DEVNAME(zr), fh->map_mode); res = POLLNVAL; goto poll_unlock_and_return; } poll_unlock_and_return: 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) { zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->v4l_buffers.active = ZORAN_FREE; } //v4l_fbuffer_free(file); fh->v4l_buffers.allocated = 0; fh->v4l_buffers.ready_to_be_freed = 1; 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((unsigned long) fh->jpg_buffers. buffer[i].frag_tab[2 * j]); /* should just be pos on i386 */ page = virt_to_phys(bus_to_virt(pos)) >> PAGE_SHIFT; if (remap_pfn_range(vma, start, page, todo, PAGE_SHARED)) { dprintk(1, KERN_ERR "%s: zoran_mmap(V4L) - remap_pfn_range failed\n", ZR_DEVNAME(zr)); res = -EAGAIN; goto jpg_mmap_unlock_and_return; } size -= todo; start += todo; if (size == 0) break; if (le32_to_cpu(fh->jpg_buffers.buffer[i]. frag_tab[2 * j + 1]) & 1) break; /* was last fragment */ } fh->jpg_buffers.buffer[i].map = map; if (size == 0) break; } jpg_mmap_unlock_and_return: 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 struct file_operations zoran_fops = { .owner = THIS_MODULE, .open = zoran_open, .release = zoran_close, .ioctl = zoran_ioctl, .compat_ioctl = v4l_compat_ioctl32, .llseek = no_llseek, .read = zoran_read, .write = zoran_write, .mmap = zoran_mmap, .poll = zoran_poll, }; struct video_device zoran_template __devinitdata = { .name = ZORAN_NAME, .type = ZORAN_VID_TYPE, #ifdef HAVE_V4L2 .type2 = ZORAN_V4L2_VID_FLAGS, #endif .hardware = ZORAN_HARDWARE, .fops = &zoran_fops, .release = &zoran_vdev_release, .minor = -1 };