| /* |
| * Zoran zr36057/zr36067 PCI controller driver, for the |
| * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux |
| * Media Labs LML33/LML33R10. |
| * |
| * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> |
| * |
| * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> |
| * |
| * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> |
| * |
| * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> |
| * |
| * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> |
| * |
| * Based on |
| * |
| * Miro DC10 driver |
| * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> |
| * |
| * Iomega Buz driver version 1.0 |
| * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> |
| * |
| * buz.0.0.3 |
| * Copyright (C) 1998 Dave Perks <dperks@ibm.net> |
| * |
| * bttv - Bt848 frame grabber driver |
| * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) |
| * & Marcus Metzler (mocm@thp.uni-koeln.de) |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/version.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/vmalloc.h> |
| #include <linux/wait.h> |
| |
| #include <linux/interrupt.h> |
| #include <linux/i2c.h> |
| #include <linux/i2c-algo-bit.h> |
| |
| #include <linux/spinlock.h> |
| #define MAP_NR(x) virt_to_page(x) |
| #define ZORAN_VID_TYPE ( \ |
| VID_TYPE_CAPTURE | \ |
| VID_TYPE_OVERLAY | \ |
| VID_TYPE_CLIPPING | \ |
| VID_TYPE_FRAMERAM | \ |
| VID_TYPE_SCALES | \ |
| VID_TYPE_MJPEG_DECODER | \ |
| VID_TYPE_MJPEG_ENCODER \ |
| ) |
| |
| #include <linux/videodev.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-ioctl.h> |
| #include "videocodec.h" |
| |
| #include <asm/byteorder.h> |
| #include <asm/io.h> |
| #include <asm/uaccess.h> |
| #include <linux/proc_fs.h> |
| |
| #include <linux/video_decoder.h> |
| #include <linux/video_encoder.h> |
| #include <linux/mutex.h> |
| #include "zoran.h" |
| #include "zoran_device.h" |
| #include "zoran_card.h" |
| |
| /* we declare some card type definitions here, they mean |
| * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */ |
| #define ZORAN_V4L2_VID_FLAGS ( \ |
| V4L2_CAP_STREAMING |\ |
| V4L2_CAP_VIDEO_CAPTURE |\ |
| V4L2_CAP_VIDEO_OUTPUT |\ |
| V4L2_CAP_VIDEO_OVERLAY \ |
| ) |
| |
| |
| #if defined(CONFIG_VIDEO_V4L1_COMPAT) |
| #define ZFMT(pal, fcc, cs) \ |
| .palette = (pal), .fourcc = (fcc), .colorspace = (cs) |
| #else |
| #define ZFMT(pal, fcc, cs) \ |
| .fourcc = (fcc), .colorspace = (cs) |
| #endif |
| |
| const struct zoran_format zoran_formats[] = { |
| { |
| .name = "15-bit RGB LE", |
| ZFMT(VIDEO_PALETTE_RGB555, |
| V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB), |
| .depth = 15, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif| |
| ZR36057_VFESPFR_LittleEndian, |
| }, { |
| .name = "15-bit RGB BE", |
| ZFMT(-1, |
| V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB), |
| .depth = 15, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, |
| }, { |
| .name = "16-bit RGB LE", |
| ZFMT(VIDEO_PALETTE_RGB565, |
| V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB), |
| .depth = 16, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif| |
| ZR36057_VFESPFR_LittleEndian, |
| }, { |
| .name = "16-bit RGB BE", |
| ZFMT(-1, |
| V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB), |
| .depth = 16, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, |
| }, { |
| .name = "24-bit RGB", |
| ZFMT(VIDEO_PALETTE_RGB24, |
| V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB), |
| .depth = 24, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, |
| }, { |
| .name = "32-bit RGB LE", |
| ZFMT(VIDEO_PALETTE_RGB32, |
| V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB), |
| .depth = 32, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, |
| }, { |
| .name = "32-bit RGB BE", |
| ZFMT(-1, |
| V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB), |
| .depth = 32, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_RGB888, |
| }, { |
| .name = "4:2:2, packed, YUYV", |
| ZFMT(VIDEO_PALETTE_YUV422, |
| V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M), |
| .depth = 16, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_YUV422, |
| }, { |
| .name = "4:2:2, packed, UYVY", |
| ZFMT(VIDEO_PALETTE_UYVY, |
| V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M), |
| .depth = 16, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_OVERLAY, |
| .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, |
| }, { |
| .name = "Hardware-encoded Motion-JPEG", |
| ZFMT(-1, |
| V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M), |
| .depth = 0, |
| .flags = ZORAN_FORMAT_CAPTURE | |
| ZORAN_FORMAT_PLAYBACK | |
| ZORAN_FORMAT_COMPRESSED, |
| } |
| }; |
| #define NUM_FORMATS ARRAY_SIZE(zoran_formats) |
| |
| // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined |
| |
| |
| extern int v4l_nbufs; |
| extern int v4l_bufsize; |
| extern int jpg_nbufs; |
| extern int jpg_bufsize; |
| extern int pass_through; |
| |
| static int lock_norm; /* 0 = default 1 = Don't change TV standard (norm) */ |
| module_param(lock_norm, int, 0644); |
| MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)"); |
| |
| /* small helper function for calculating buffersizes for v4l2 |
| * we calculate the nearest higher power-of-two, which |
| * will be the recommended buffersize */ |
| static __u32 |
| zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) |
| { |
| __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; |
| __u32 num = (1024 * 512) / (div); |
| __u32 result = 2; |
| |
| num--; |
| while (num) { |
| num >>= 1; |
| result <<= 1; |
| } |
| |
| if (result > jpg_bufsize) |
| return jpg_bufsize; |
| if (result < 8192) |
| return 8192; |
| return result; |
| } |
| |
| /* forward references */ |
| static void v4l_fbuffer_free(struct file *file); |
| static void jpg_fbuffer_free(struct file *file); |
| |
| /* |
| * Allocate the V4L grab buffers |
| * |
| * These have to be pysically contiguous. |
| * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc |
| * else we try to allocate them with bigphysarea_alloc_pages |
| * if the bigphysarea patch is present in the kernel, |
| * else we try to use high memory (if the user has bootet |
| * Linux with the necessary memory left over). |
| */ |
| |
| static unsigned long |
| get_high_mem (unsigned long size) |
| { |
| /* |
| * Check if there is usable memory at the end of Linux memory |
| * of at least size. Return the physical address of this memory, |
| * return 0 on failure. |
| * |
| * The idea is from Alexandro Rubini's book "Linux device drivers". |
| * The driver from him which is downloadable from O'Reilly's |
| * web site misses the "virt_to_phys(high_memory)" part |
| * (and therefore doesn't work at all - at least with 2.2.x kernels). |
| * |
| * It should be unnecessary to mention that THIS IS DANGEROUS, |
| * if more than one driver at a time has the idea to use this memory!!!! |
| */ |
| |
| volatile unsigned char __iomem *mem; |
| unsigned char c; |
| unsigned long hi_mem_ph; |
| unsigned long i; |
| |
| /* Map the high memory to user space */ |
| |
| hi_mem_ph = virt_to_phys(high_memory); |
| |
| mem = ioremap(hi_mem_ph, size); |
| if (!mem) { |
| dprintk(1, |
| KERN_ERR "%s: get_high_mem() - ioremap failed\n", |
| ZORAN_NAME); |
| return 0; |
| } |
| |
| for (i = 0; i < size; i++) { |
| /* Check if it is memory */ |
| c = i & 0xff; |
| writeb(c, mem + i); |
| if (readb(mem + i) != c) |
| break; |
| c = 255 - c; |
| writeb(c, mem + i); |
| if (readb(mem + i) != c) |
| break; |
| writeb(0, mem + i); /* zero out memory */ |
| |
| /* give the kernel air to breath */ |
| if ((i & 0x3ffff) == 0x3ffff) |
| schedule(); |
| } |
| |
| iounmap(mem); |
| |
| if (i != size) { |
| dprintk(1, |
| KERN_ERR |
| "%s: get_high_mem() - requested %lu, avail %lu\n", |
| ZORAN_NAME, size, i); |
| return 0; |
| } |
| |
| return hi_mem_ph; |
| } |
| |
| static int |
| v4l_fbuffer_alloc (struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int i, off; |
| unsigned char *mem; |
| unsigned long pmem = 0; |
| |
| /* we might have old buffers lying around... */ |
| if (fh->v4l_buffers.ready_to_be_freed) { |
| v4l_fbuffer_free(file); |
| } |
| |
| for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| if (fh->v4l_buffers.buffer[i].fbuffer) |
| dprintk(2, |
| KERN_WARNING |
| "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n", |
| ZR_DEVNAME(zr), i); |
| |
| //udelay(20); |
| if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { |
| /* Use kmalloc */ |
| |
| mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL); |
| if (!mem) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n", |
| ZR_DEVNAME(zr), i); |
| v4l_fbuffer_free(file); |
| return -ENOBUFS; |
| } |
| fh->v4l_buffers.buffer[i].fbuffer = mem; |
| fh->v4l_buffers.buffer[i].fbuffer_phys = |
| virt_to_phys(mem); |
| fh->v4l_buffers.buffer[i].fbuffer_bus = |
| virt_to_bus(mem); |
| for (off = 0; off < fh->v4l_buffers.buffer_size; |
| off += PAGE_SIZE) |
| SetPageReserved(MAP_NR(mem + off)); |
| dprintk(4, |
| KERN_INFO |
| "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n", |
| ZR_DEVNAME(zr), i, (unsigned long) mem, |
| virt_to_bus(mem)); |
| } else { |
| |
| /* Use high memory which has been left at boot time */ |
| |
| /* Ok., Ok. this is an evil hack - we make |
| * the assumption that physical addresses are |
| * the same as bus addresses (true at least |
| * for Intel processors). The whole method of |
| * obtaining and using this memory is not very |
| * nice - but I hope it saves some poor users |
| * from kernel hacking, which might have even |
| * more evil results */ |
| |
| if (i == 0) { |
| int size = |
| fh->v4l_buffers.num_buffers * |
| fh->v4l_buffers.buffer_size; |
| |
| pmem = get_high_mem(size); |
| if (pmem == 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n", |
| ZR_DEVNAME(zr), size >> 10); |
| return -ENOBUFS; |
| } |
| fh->v4l_buffers.buffer[0].fbuffer = NULL; |
| fh->v4l_buffers.buffer[0].fbuffer_phys = pmem; |
| fh->v4l_buffers.buffer[0].fbuffer_bus = pmem; |
| dprintk(4, |
| KERN_INFO |
| "%s: v4l_fbuffer_alloc() - using %d KB high memory\n", |
| ZR_DEVNAME(zr), size >> 10); |
| } else { |
| fh->v4l_buffers.buffer[i].fbuffer = NULL; |
| fh->v4l_buffers.buffer[i].fbuffer_phys = |
| pmem + i * fh->v4l_buffers.buffer_size; |
| fh->v4l_buffers.buffer[i].fbuffer_bus = |
| pmem + i * fh->v4l_buffers.buffer_size; |
| } |
| } |
| } |
| |
| fh->v4l_buffers.allocated = 1; |
| |
| return 0; |
| } |
| |
| /* free the V4L grab buffers */ |
| static void |
| v4l_fbuffer_free (struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int i, off; |
| unsigned char *mem; |
| |
| dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr)); |
| |
| for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| if (!fh->v4l_buffers.buffer[i].fbuffer) |
| continue; |
| |
| if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) { |
| mem = fh->v4l_buffers.buffer[i].fbuffer; |
| for (off = 0; off < fh->v4l_buffers.buffer_size; |
| off += PAGE_SIZE) |
| ClearPageReserved(MAP_NR(mem + off)); |
| kfree((void *) fh->v4l_buffers.buffer[i].fbuffer); |
| } |
| fh->v4l_buffers.buffer[i].fbuffer = NULL; |
| } |
| |
| fh->v4l_buffers.allocated = 0; |
| fh->v4l_buffers.ready_to_be_freed = 0; |
| } |
| |
| /* |
| * Allocate the MJPEG grab buffers. |
| * |
| * If the requested buffer size is smaller than MAX_KMALLOC_MEM, |
| * kmalloc is used to request a physically contiguous area, |
| * else we allocate the memory in framgents with get_zeroed_page. |
| * |
| * If a Natoma chipset is present and this is a revision 1 zr36057, |
| * each MJPEG buffer needs to be physically contiguous. |
| * (RJ: This statement is from Dave Perks' original driver, |
| * I could never check it because I have a zr36067) |
| * The driver cares about this because it reduces the buffer |
| * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation). |
| * |
| * RJ: The contents grab buffers needs never be accessed in the driver. |
| * Therefore there is no need to allocate them with vmalloc in order |
| * to get a contiguous virtual memory space. |
| * I don't understand why many other drivers first allocate them with |
| * vmalloc (which uses internally also get_zeroed_page, but delivers you |
| * virtual addresses) and then again have to make a lot of efforts |
| * to get the physical address. |
| * |
| * Ben Capper: |
| * On big-endian architectures (such as ppc) some extra steps |
| * are needed. When reading and writing to the stat_com array |
| * and fragment buffers, the device expects to see little- |
| * endian values. The use of cpu_to_le32() and le32_to_cpu() |
| * in this function (and one or two others in zoran_device.c) |
| * ensure that these values are always stored in little-endian |
| * form, regardless of architecture. The zr36057 does Very Bad |
| * Things on big endian architectures if the stat_com array |
| * and fragment buffers are not little-endian. |
| */ |
| |
| static int |
| jpg_fbuffer_alloc (struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int i, j, off; |
| unsigned long mem; |
| |
| /* we might have old buffers lying around */ |
| if (fh->jpg_buffers.ready_to_be_freed) { |
| jpg_fbuffer_free(file); |
| } |
| |
| for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| if (fh->jpg_buffers.buffer[i].frag_tab) |
| dprintk(2, |
| KERN_WARNING |
| "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n", |
| ZR_DEVNAME(zr), i); |
| |
| /* Allocate fragment table for this buffer */ |
| |
| mem = get_zeroed_page(GFP_KERNEL); |
| if (mem == 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n", |
| ZR_DEVNAME(zr), i); |
| jpg_fbuffer_free(file); |
| return -ENOBUFS; |
| } |
| fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem; |
| fh->jpg_buffers.buffer[i].frag_tab_bus = |
| virt_to_bus((void *) mem); |
| |
| //if (alloc_contig) { |
| if (fh->jpg_buffers.need_contiguous) { |
| mem = |
| (unsigned long) kmalloc(fh->jpg_buffers. |
| buffer_size, |
| GFP_KERNEL); |
| if (mem == 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n", |
| ZR_DEVNAME(zr), i); |
| jpg_fbuffer_free(file); |
| return -ENOBUFS; |
| } |
| fh->jpg_buffers.buffer[i].frag_tab[0] = |
| cpu_to_le32(virt_to_bus((void *) mem)); |
| fh->jpg_buffers.buffer[i].frag_tab[1] = |
| cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1); |
| for (off = 0; off < fh->jpg_buffers.buffer_size; |
| off += PAGE_SIZE) |
| SetPageReserved(MAP_NR(mem + off)); |
| } else { |
| /* jpg_bufsize is allreay page aligned */ |
| for (j = 0; |
| j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| j++) { |
| mem = get_zeroed_page(GFP_KERNEL); |
| if (mem == 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n", |
| ZR_DEVNAME(zr), i); |
| jpg_fbuffer_free(file); |
| return -ENOBUFS; |
| } |
| |
| fh->jpg_buffers.buffer[i].frag_tab[2 * j] = |
| cpu_to_le32(virt_to_bus((void *) mem)); |
| fh->jpg_buffers.buffer[i].frag_tab[2 * j + |
| 1] = |
| cpu_to_le32((PAGE_SIZE / 4) << 1); |
| SetPageReserved(MAP_NR(mem)); |
| } |
| |
| fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1); |
| } |
| } |
| |
| dprintk(4, |
| KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n", |
| ZR_DEVNAME(zr), |
| (fh->jpg_buffers.num_buffers * |
| fh->jpg_buffers.buffer_size) >> 10); |
| |
| fh->jpg_buffers.allocated = 1; |
| |
| return 0; |
| } |
| |
| /* free the MJPEG grab buffers */ |
| static void |
| jpg_fbuffer_free (struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int i, j, off; |
| unsigned char *mem; |
| |
| dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr)); |
| |
| for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| if (!fh->jpg_buffers.buffer[i].frag_tab) |
| continue; |
| |
| //if (alloc_contig) { |
| if (fh->jpg_buffers.need_contiguous) { |
| if (fh->jpg_buffers.buffer[i].frag_tab[0]) { |
| mem = (unsigned char *) bus_to_virt(le32_to_cpu( |
| fh->jpg_buffers.buffer[i].frag_tab[0])); |
| for (off = 0; |
| off < fh->jpg_buffers.buffer_size; |
| off += PAGE_SIZE) |
| ClearPageReserved(MAP_NR |
| (mem + off)); |
| kfree(mem); |
| fh->jpg_buffers.buffer[i].frag_tab[0] = 0; |
| fh->jpg_buffers.buffer[i].frag_tab[1] = 0; |
| } |
| } else { |
| for (j = 0; |
| j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| j++) { |
| if (!fh->jpg_buffers.buffer[i]. |
| frag_tab[2 * j]) |
| break; |
| ClearPageReserved(MAP_NR |
| (bus_to_virt |
| (le32_to_cpu |
| (fh->jpg_buffers. |
| buffer[i].frag_tab[2 * |
| j])))); |
| free_page((unsigned long) |
| bus_to_virt |
| (le32_to_cpu |
| (fh->jpg_buffers. |
| buffer[i]. |
| frag_tab[2 * j]))); |
| fh->jpg_buffers.buffer[i].frag_tab[2 * j] = |
| 0; |
| fh->jpg_buffers.buffer[i].frag_tab[2 * j + |
| 1] = 0; |
| } |
| } |
| |
| free_page((unsigned long) fh->jpg_buffers.buffer[i]. |
| frag_tab); |
| fh->jpg_buffers.buffer[i].frag_tab = NULL; |
| } |
| |
| fh->jpg_buffers.allocated = 0; |
| fh->jpg_buffers.ready_to_be_freed = 0; |
| } |
| |
| /* |
| * V4L Buffer grabbing |
| */ |
| |
| static int |
| zoran_v4l_set_format (struct file *file, |
| int width, |
| int height, |
| const struct zoran_format *format) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int bpp; |
| |
| /* Check size and format of the grab wanted */ |
| |
| if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || |
| height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_set_format() - wrong frame size (%dx%d)\n", |
| ZR_DEVNAME(zr), width, height); |
| return -EINVAL; |
| } |
| |
| bpp = (format->depth + 7) / 8; |
| |
| /* Check against available buffer size */ |
| if (height * width * bpp > fh->v4l_buffers.buffer_size) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_set_format() - video buffer size (%d kB) is too small\n", |
| ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10); |
| return -EINVAL; |
| } |
| |
| /* The video front end needs 4-byte alinged line sizes */ |
| |
| if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_set_format() - wrong frame alingment\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| fh->v4l_settings.width = width; |
| fh->v4l_settings.height = height; |
| fh->v4l_settings.format = format; |
| fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; |
| |
| return 0; |
| } |
| |
| static int |
| zoran_v4l_queue_frame (struct file *file, |
| int num) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| unsigned long flags; |
| int res = 0; |
| |
| if (!fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_queue_frame() - buffers not yet allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -ENOMEM; |
| } |
| |
| /* No grabbing outside the buffer range! */ |
| if (num >= fh->v4l_buffers.num_buffers || num < 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_queue_frame() - buffer %d is out of range\n", |
| ZR_DEVNAME(zr), num); |
| res = -EINVAL; |
| } |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| |
| if (fh->v4l_buffers.active == ZORAN_FREE) { |
| if (zr->v4l_buffers.active == ZORAN_FREE) { |
| zr->v4l_buffers = fh->v4l_buffers; |
| fh->v4l_buffers.active = ZORAN_ACTIVE; |
| } else { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_queue_frame() - another session is already capturing\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| } |
| } |
| |
| /* make sure a grab isn't going on currently with this buffer */ |
| if (!res) { |
| switch (zr->v4l_buffers.buffer[num].state) { |
| default: |
| case BUZ_STATE_PEND: |
| if (zr->v4l_buffers.active == ZORAN_FREE) { |
| fh->v4l_buffers.active = ZORAN_FREE; |
| zr->v4l_buffers.allocated = 0; |
| } |
| res = -EBUSY; /* what are you doing? */ |
| break; |
| case BUZ_STATE_DONE: |
| dprintk(2, |
| KERN_WARNING |
| "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n", |
| ZR_DEVNAME(zr), num); |
| case BUZ_STATE_USER: |
| /* since there is at least one unused buffer there's room for at least |
| * one more pend[] entry */ |
| zr->v4l_pend[zr->v4l_pend_head++ & |
| V4L_MASK_FRAME] = num; |
| zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; |
| zr->v4l_buffers.buffer[num].bs.length = |
| fh->v4l_settings.bytesperline * |
| zr->v4l_settings.height; |
| fh->v4l_buffers.buffer[num] = |
| zr->v4l_buffers.buffer[num]; |
| break; |
| } |
| } |
| |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| if (!res && zr->v4l_buffers.active == ZORAN_FREE) |
| zr->v4l_buffers.active = fh->v4l_buffers.active; |
| |
| return res; |
| } |
| |
| static int |
| v4l_grab (struct file *file, |
| struct video_mmap *mp) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int res = 0, i; |
| |
| for (i = 0; i < NUM_FORMATS; i++) { |
| if (zoran_formats[i].palette == mp->format && |
| zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE && |
| !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)) |
| break; |
| } |
| if (i == NUM_FORMATS || zoran_formats[i].depth == 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_grab() - wrong bytes-per-pixel format\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| /* |
| * To minimize the time spent in the IRQ routine, we avoid setting up |
| * the video front end there. |
| * If this grab has different parameters from a running streaming capture |
| * we stop the streaming capture and start it over again. |
| */ |
| if (zr->v4l_memgrab_active && |
| (zr->v4l_settings.width != mp->width || |
| zr->v4l_settings.height != mp->height || |
| zr->v4l_settings.format->palette != mp->format)) { |
| res = wait_grab_pending(zr); |
| if (res) |
| return res; |
| } |
| if ((res = zoran_v4l_set_format(file, |
| mp->width, |
| mp->height, |
| &zoran_formats[i]))) |
| return res; |
| zr->v4l_settings = fh->v4l_settings; |
| |
| /* queue the frame in the pending queue */ |
| if ((res = zoran_v4l_queue_frame(file, mp->frame))) { |
| fh->v4l_buffers.active = ZORAN_FREE; |
| return res; |
| } |
| |
| /* put the 36057 into frame grabbing mode */ |
| if (!res && !zr->v4l_memgrab_active) |
| zr36057_set_memgrab(zr, 1); |
| |
| //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr)); |
| |
| return res; |
| } |
| |
| /* |
| * Sync on a V4L buffer |
| */ |
| |
| static int |
| v4l_sync (struct file *file, |
| int frame) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| unsigned long flags; |
| |
| if (fh->v4l_buffers.active == ZORAN_FREE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_sync() - no grab active for this session\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| /* check passed-in frame number */ |
| if (frame >= fh->v4l_buffers.num_buffers || frame < 0) { |
| dprintk(1, |
| KERN_ERR "%s: v4l_sync() - frame %d is invalid\n", |
| ZR_DEVNAME(zr), frame); |
| return -EINVAL; |
| } |
| |
| /* Check if is buffer was queued at all */ |
| if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n", |
| ZR_DEVNAME(zr)); |
| return -EPROTO; |
| } |
| |
| /* wait on this buffer to get ready */ |
| if (!wait_event_interruptible_timeout(zr->v4l_capq, |
| (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), |
| 10*HZ)) |
| return -ETIME; |
| if (signal_pending(current)) |
| return -ERESTARTSYS; |
| |
| /* buffer should now be in BUZ_STATE_DONE */ |
| if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) |
| dprintk(2, |
| KERN_ERR "%s: v4l_sync() - internal state error\n", |
| ZR_DEVNAME(zr)); |
| |
| zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; |
| fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| |
| /* Check if streaming capture has finished */ |
| if (zr->v4l_pend_tail == zr->v4l_pend_head) { |
| zr36057_set_memgrab(zr, 0); |
| if (zr->v4l_buffers.active == ZORAN_ACTIVE) { |
| fh->v4l_buffers.active = zr->v4l_buffers.active = |
| ZORAN_FREE; |
| zr->v4l_buffers.allocated = 0; |
| } |
| } |
| |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| return 0; |
| } |
| |
| /* |
| * Queue a MJPEG buffer for capture/playback |
| */ |
| |
| static int |
| zoran_jpg_queue_frame (struct file *file, |
| int num, |
| enum zoran_codec_mode mode) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| unsigned long flags; |
| int res = 0; |
| |
| /* Check if buffers are allocated */ |
| if (!fh->jpg_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_queue_frame() - buffers not yet allocated\n", |
| ZR_DEVNAME(zr)); |
| return -ENOMEM; |
| } |
| |
| /* No grabbing outside the buffer range! */ |
| if (num >= fh->jpg_buffers.num_buffers || num < 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_queue_frame() - buffer %d out of range\n", |
| ZR_DEVNAME(zr), num); |
| return -EINVAL; |
| } |
| |
| /* what is the codec mode right now? */ |
| if (zr->codec_mode == BUZ_MODE_IDLE) { |
| zr->jpg_settings = fh->jpg_settings; |
| } else if (zr->codec_mode != mode) { |
| /* wrong codec mode active - invalid */ |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_queue_frame() - codec in wrong mode\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| if (fh->jpg_buffers.active == ZORAN_FREE) { |
| if (zr->jpg_buffers.active == ZORAN_FREE) { |
| zr->jpg_buffers = fh->jpg_buffers; |
| fh->jpg_buffers.active = ZORAN_ACTIVE; |
| } else { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_queue_frame() - another session is already capturing\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| } |
| } |
| |
| if (!res && zr->codec_mode == BUZ_MODE_IDLE) { |
| /* Ok load up the jpeg codec */ |
| zr36057_enable_jpg(zr, mode); |
| } |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| |
| if (!res) { |
| switch (zr->jpg_buffers.buffer[num].state) { |
| case BUZ_STATE_DONE: |
| dprintk(2, |
| KERN_WARNING |
| "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n", |
| ZR_DEVNAME(zr)); |
| case BUZ_STATE_USER: |
| /* since there is at least one unused buffer there's room for at |
| *least one more pend[] entry */ |
| zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = |
| num; |
| zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; |
| fh->jpg_buffers.buffer[num] = |
| zr->jpg_buffers.buffer[num]; |
| zoran_feed_stat_com(zr); |
| break; |
| default: |
| case BUZ_STATE_DMA: |
| case BUZ_STATE_PEND: |
| if (zr->jpg_buffers.active == ZORAN_FREE) { |
| fh->jpg_buffers.active = ZORAN_FREE; |
| zr->jpg_buffers.allocated = 0; |
| } |
| res = -EBUSY; /* what are you doing? */ |
| break; |
| } |
| } |
| |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| if (!res && zr->jpg_buffers.active == ZORAN_FREE) { |
| zr->jpg_buffers.active = fh->jpg_buffers.active; |
| } |
| |
| return res; |
| } |
| |
| static int |
| jpg_qbuf (struct file *file, |
| int frame, |
| enum zoran_codec_mode mode) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int res = 0; |
| |
| /* Does the user want to stop streaming? */ |
| if (frame < 0) { |
| if (zr->codec_mode == mode) { |
| if (fh->jpg_buffers.active == ZORAN_FREE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_qbuf(-1) - session not active\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| fh->jpg_buffers.active = zr->jpg_buffers.active = |
| ZORAN_FREE; |
| zr->jpg_buffers.allocated = 0; |
| zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| return 0; |
| } else { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_qbuf() - stop streaming but not in streaming mode\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| } |
| |
| if ((res = zoran_jpg_queue_frame(file, frame, mode))) |
| return res; |
| |
| /* Start the jpeg codec when the first frame is queued */ |
| if (!res && zr->jpg_que_head == 1) |
| jpeg_start(zr); |
| |
| return res; |
| } |
| |
| /* |
| * Sync on a MJPEG buffer |
| */ |
| |
| static int |
| jpg_sync (struct file *file, |
| struct zoran_sync *bs) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| unsigned long flags; |
| int frame; |
| |
| if (fh->jpg_buffers.active == ZORAN_FREE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_sync() - capture is not currently active\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && |
| zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_sync() - codec not in streaming mode\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| if (!wait_event_interruptible_timeout(zr->jpg_capq, |
| (zr->jpg_que_tail != zr->jpg_dma_tail || |
| zr->jpg_dma_tail == zr->jpg_dma_head), |
| 10*HZ)) { |
| int isr; |
| |
| btand(~ZR36057_JMC_Go_en, ZR36057_JMC); |
| udelay(1); |
| zr->codec->control(zr->codec, CODEC_G_STATUS, |
| sizeof(isr), &isr); |
| dprintk(1, |
| KERN_ERR |
| "%s: jpg_sync() - timeout: codec isr=0x%02x\n", |
| ZR_DEVNAME(zr), isr); |
| |
| return -ETIME; |
| |
| } |
| if (signal_pending(current)) |
| return -ERESTARTSYS; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| |
| if (zr->jpg_dma_tail != zr->jpg_dma_head) |
| frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; |
| else |
| frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; |
| |
| /* buffer should now be in BUZ_STATE_DONE */ |
| if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) |
| dprintk(2, |
| KERN_ERR "%s: jpg_sync() - internal state error\n", |
| ZR_DEVNAME(zr)); |
| |
| *bs = zr->jpg_buffers.buffer[frame].bs; |
| bs->frame = frame; |
| zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; |
| fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; |
| |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| return 0; |
| } |
| |
| static void |
| zoran_open_init_session (struct file *file) |
| { |
| int i; |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| /* Per default, map the V4L Buffers */ |
| fh->map_mode = ZORAN_MAP_MODE_RAW; |
| |
| /* take over the card's current settings */ |
| fh->overlay_settings = zr->overlay_settings; |
| fh->overlay_settings.is_set = 0; |
| fh->overlay_settings.format = zr->overlay_settings.format; |
| fh->overlay_active = ZORAN_FREE; |
| |
| /* v4l settings */ |
| fh->v4l_settings = zr->v4l_settings; |
| |
| /* v4l_buffers */ |
| memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct)); |
| for (i = 0; i < VIDEO_MAX_FRAME; i++) { |
| fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ |
| fh->v4l_buffers.buffer[i].bs.frame = i; |
| } |
| fh->v4l_buffers.allocated = 0; |
| fh->v4l_buffers.ready_to_be_freed = 0; |
| fh->v4l_buffers.active = ZORAN_FREE; |
| fh->v4l_buffers.buffer_size = v4l_bufsize; |
| fh->v4l_buffers.num_buffers = v4l_nbufs; |
| |
| /* jpg settings */ |
| fh->jpg_settings = zr->jpg_settings; |
| |
| /* jpg_buffers */ |
| memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct)); |
| for (i = 0; i < BUZ_MAX_FRAME; i++) { |
| fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ |
| fh->jpg_buffers.buffer[i].bs.frame = i; |
| } |
| fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous; |
| fh->jpg_buffers.allocated = 0; |
| fh->jpg_buffers.ready_to_be_freed = 0; |
| fh->jpg_buffers.active = ZORAN_FREE; |
| fh->jpg_buffers.buffer_size = jpg_bufsize; |
| fh->jpg_buffers.num_buffers = jpg_nbufs; |
| } |
| |
| static void |
| zoran_close_end_session (struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| /* overlay */ |
| if (fh->overlay_active != ZORAN_FREE) { |
| fh->overlay_active = zr->overlay_active = ZORAN_FREE; |
| zr->v4l_overlay_active = 0; |
| if (!zr->v4l_memgrab_active) |
| zr36057_overlay(zr, 0); |
| zr->overlay_mask = NULL; |
| } |
| |
| /* v4l capture */ |
| if (fh->v4l_buffers.active != ZORAN_FREE) { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| zr36057_set_memgrab(zr, 0); |
| zr->v4l_buffers.allocated = 0; |
| zr->v4l_buffers.active = fh->v4l_buffers.active = |
| ZORAN_FREE; |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| } |
| |
| /* v4l buffers */ |
| if (fh->v4l_buffers.allocated || |
| fh->v4l_buffers.ready_to_be_freed) { |
| v4l_fbuffer_free(file); |
| } |
| |
| /* jpg capture */ |
| if (fh->jpg_buffers.active != ZORAN_FREE) { |
| zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| zr->jpg_buffers.allocated = 0; |
| zr->jpg_buffers.active = fh->jpg_buffers.active = |
| ZORAN_FREE; |
| } |
| |
| /* jpg buffers */ |
| if (fh->jpg_buffers.allocated || |
| fh->jpg_buffers.ready_to_be_freed) { |
| jpg_fbuffer_free(file); |
| } |
| } |
| |
| /* |
| * Open a zoran card. Right now the flags stuff is just playing |
| */ |
| |
| static int |
| zoran_open (struct inode *inode, |
| struct file *file) |
| { |
| unsigned int minor = iminor(inode); |
| struct zoran *zr = NULL; |
| struct zoran_fh *fh; |
| int i, res, first_open = 0, have_module_locks = 0; |
| |
| /* find the device */ |
| for (i = 0; i < zoran_num; i++) { |
| if (zoran[i]->video_dev->minor == minor) { |
| zr = zoran[i]; |
| break; |
| } |
| } |
| |
| if (!zr) { |
| dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME); |
| res = -ENODEV; |
| goto open_unlock_and_return; |
| } |
| |
| /* see fs/device.c - the kernel already locks during open(), |
| * so locking ourselves only causes deadlocks */ |
| /*mutex_lock(&zr->resource_lock);*/ |
| |
| if (!zr->decoder) { |
| dprintk(1, |
| KERN_ERR "%s: no TV decoder loaded for device!\n", |
| ZR_DEVNAME(zr)); |
| res = -EIO; |
| goto open_unlock_and_return; |
| } |
| |
| /* try to grab a module lock */ |
| if (!try_module_get(THIS_MODULE)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: failed to acquire my own lock! PANIC!\n", |
| ZR_DEVNAME(zr)); |
| res = -ENODEV; |
| goto open_unlock_and_return; |
| } |
| if (!try_module_get(zr->decoder->driver->driver.owner)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: failed to grab ownership of i2c decoder\n", |
| ZR_DEVNAME(zr)); |
| res = -EIO; |
| module_put(THIS_MODULE); |
| goto open_unlock_and_return; |
| } |
| if (zr->encoder && |
| !try_module_get(zr->encoder->driver->driver.owner)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: failed to grab ownership of i2c encoder\n", |
| ZR_DEVNAME(zr)); |
| res = -EIO; |
| module_put(zr->decoder->driver->driver.owner); |
| module_put(THIS_MODULE); |
| goto open_unlock_and_return; |
| } |
| |
| have_module_locks = 1; |
| |
| if (zr->user >= 2048) { |
| dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", |
| ZR_DEVNAME(zr), zr->user); |
| res = -EBUSY; |
| goto open_unlock_and_return; |
| } |
| |
| dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n", |
| ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user); |
| |
| /* now, create the open()-specific file_ops struct */ |
| fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); |
| if (!fh) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_open() - allocation of zoran_fh failed\n", |
| ZR_DEVNAME(zr)); |
| res = -ENOMEM; |
| goto open_unlock_and_return; |
| } |
| /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows |
| * on norm-change! */ |
| fh->overlay_mask = |
| kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); |
| if (!fh->overlay_mask) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_open() - allocation of overlay_mask failed\n", |
| ZR_DEVNAME(zr)); |
| kfree(fh); |
| res = -ENOMEM; |
| goto open_unlock_and_return; |
| } |
| |
| if (zr->user++ == 0) |
| first_open = 1; |
| |
| /*mutex_unlock(&zr->resource_lock);*/ |
| |
| /* default setup - TODO: look at flags */ |
| if (first_open) { /* First device open */ |
| zr36057_restart(zr); |
| zoran_open_init_params(zr); |
| zoran_init_hardware(zr); |
| |
| btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); |
| } |
| |
| /* set file_ops stuff */ |
| file->private_data = fh; |
| fh->zr = zr; |
| zoran_open_init_session(file); |
| |
| return 0; |
| |
| open_unlock_and_return: |
| /* if we grabbed locks, release them accordingly */ |
| if (have_module_locks) { |
| module_put(zr->decoder->driver->driver.owner); |
| if (zr->encoder) { |
| module_put(zr->encoder->driver->driver.owner); |
| } |
| module_put(THIS_MODULE); |
| } |
| |
| /* if there's no device found, we didn't obtain the lock either */ |
| if (zr) { |
| /*mutex_unlock(&zr->resource_lock);*/ |
| } |
| |
| return res; |
| } |
| |
| static int |
| zoran_close (struct inode *inode, |
| struct file *file) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n", |
| ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user); |
| |
| /* kernel locks (fs/device.c), so don't do that ourselves |
| * (prevents deadlocks) */ |
| /*mutex_lock(&zr->resource_lock);*/ |
| |
| zoran_close_end_session(file); |
| |
| if (zr->user-- == 1) { /* Last process */ |
| /* Clean up JPEG process */ |
| wake_up_interruptible(&zr->jpg_capq); |
| zr36057_enable_jpg(zr, BUZ_MODE_IDLE); |
| zr->jpg_buffers.allocated = 0; |
| zr->jpg_buffers.active = ZORAN_FREE; |
| |
| /* disable interrupts */ |
| btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); |
| |
| if (zr36067_debug > 1) |
| print_interrupts(zr); |
| |
| /* Overlay off */ |
| zr->v4l_overlay_active = 0; |
| zr36057_overlay(zr, 0); |
| zr->overlay_mask = NULL; |
| |
| /* capture off */ |
| wake_up_interruptible(&zr->v4l_capq); |
| zr36057_set_memgrab(zr, 0); |
| zr->v4l_buffers.allocated = 0; |
| zr->v4l_buffers.active = ZORAN_FREE; |
| zoran_set_pci_master(zr, 0); |
| |
| if (!pass_through) { /* Switch to color bar */ |
| int zero = 0, two = 2; |
| decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero); |
| encoder_command(zr, ENCODER_SET_INPUT, &two); |
| } |
| } |
| |
| file->private_data = NULL; |
| kfree(fh->overlay_mask); |
| kfree(fh); |
| |
| /* release locks on the i2c modules */ |
| module_put(zr->decoder->driver->driver.owner); |
| if (zr->encoder) { |
| module_put(zr->encoder->driver->driver.owner); |
| } |
| module_put(THIS_MODULE); |
| |
| /*mutex_unlock(&zr->resource_lock);*/ |
| |
| dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr)); |
| |
| return 0; |
| } |
| |
| |
| static ssize_t |
| zoran_read (struct file *file, |
| char __user *data, |
| size_t count, |
| loff_t *ppos) |
| { |
| /* we simply don't support read() (yet)... */ |
| |
| return -EINVAL; |
| } |
| |
| static ssize_t |
| zoran_write (struct file *file, |
| const char __user *data, |
| size_t count, |
| loff_t *ppos) |
| { |
| /* ...and the same goes for write() */ |
| |
| return -EINVAL; |
| } |
| |
| static int |
| setup_fbuffer (struct file *file, |
| void *base, |
| const struct zoran_format *fmt, |
| int width, |
| int height, |
| int bytesperline) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| /* (Ronald) v4l/v4l2 guidelines */ |
| if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) |
| return -EPERM; |
| |
| /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on |
| ALi Magik (that needs very low latency while the card needs a |
| higher value always) */ |
| |
| if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) |
| return -ENXIO; |
| |
| /* we need a bytesperline value, even if not given */ |
| if (!bytesperline) |
| bytesperline = width * ((fmt->depth + 7) & ~7) / 8; |
| |
| #if 0 |
| if (zr->overlay_active) { |
| /* dzjee... stupid users... don't even bother to turn off |
| * overlay before changing the memory location... |
| * normally, we would return errors here. However, one of |
| * the tools that does this is... xawtv! and since xawtv |
| * is used by +/- 99% of the users, we'd rather be user- |
| * friendly and silently do as if nothing went wrong */ |
| dprintk(3, |
| KERN_ERR |
| "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n", |
| ZR_DEVNAME(zr)); |
| zr36057_overlay(zr, 0); |
| } |
| #endif |
| |
| if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_fbuffer() - no valid overlay format given\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| if (height <= 0 || width <= 0 || bytesperline <= 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n", |
| ZR_DEVNAME(zr), width, height, bytesperline); |
| return -EINVAL; |
| } |
| if (bytesperline & 3) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n", |
| ZR_DEVNAME(zr), bytesperline); |
| return -EINVAL; |
| } |
| |
| zr->buffer.base = (void *) ((unsigned long) base & ~3); |
| zr->buffer.height = height; |
| zr->buffer.width = width; |
| zr->buffer.depth = fmt->depth; |
| zr->overlay_settings.format = fmt; |
| zr->buffer.bytesperline = bytesperline; |
| |
| /* The user should set new window parameters */ |
| zr->overlay_settings.is_set = 0; |
| |
| return 0; |
| } |
| |
| |
| static int |
| setup_window (struct file *file, |
| int x, |
| int y, |
| int width, |
| int height, |
| struct video_clip __user *clips, |
| int clipcount, |
| void __user *bitmap) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| struct video_clip *vcp = NULL; |
| int on, end; |
| |
| |
| if (!zr->buffer.base) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_window() - frame buffer has to be set first\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| if (!fh->overlay_settings.format) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_window() - no overlay format set\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| /* |
| * The video front end needs 4-byte alinged line sizes, we correct that |
| * silently here if necessary |
| */ |
| if (zr->buffer.depth == 15 || zr->buffer.depth == 16) { |
| end = (x + width) & ~1; /* round down */ |
| x = (x + 1) & ~1; /* round up */ |
| width = end - x; |
| } |
| |
| if (zr->buffer.depth == 24) { |
| end = (x + width) & ~3; /* round down */ |
| x = (x + 3) & ~3; /* round up */ |
| width = end - x; |
| } |
| |
| if (width > BUZ_MAX_WIDTH) |
| width = BUZ_MAX_WIDTH; |
| if (height > BUZ_MAX_HEIGHT) |
| height = BUZ_MAX_HEIGHT; |
| |
| /* Check for vaild parameters */ |
| if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || |
| width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_window() - width = %d or height = %d invalid\n", |
| ZR_DEVNAME(zr), width, height); |
| return -EINVAL; |
| } |
| |
| fh->overlay_settings.x = x; |
| fh->overlay_settings.y = y; |
| fh->overlay_settings.width = width; |
| fh->overlay_settings.height = height; |
| fh->overlay_settings.clipcount = clipcount; |
| |
| /* |
| * If an overlay is running, we have to switch it off |
| * and switch it on again in order to get the new settings in effect. |
| * |
| * We also want to avoid that the overlay mask is written |
| * when an overlay is running. |
| */ |
| |
| on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && |
| zr->overlay_active != ZORAN_FREE && |
| fh->overlay_active != ZORAN_FREE; |
| if (on) |
| zr36057_overlay(zr, 0); |
| |
| /* |
| * Write the overlay mask if clips are wanted. |
| * We prefer a bitmap. |
| */ |
| if (bitmap) { |
| /* fake value - it just means we want clips */ |
| fh->overlay_settings.clipcount = 1; |
| |
| if (copy_from_user(fh->overlay_mask, bitmap, |
| (width * height + 7) / 8)) { |
| return -EFAULT; |
| } |
| } else if (clipcount > 0) { |
| /* write our own bitmap from the clips */ |
| vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4)); |
| if (vcp == NULL) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_window() - Alloc of clip mask failed\n", |
| ZR_DEVNAME(zr)); |
| return -ENOMEM; |
| } |
| if (copy_from_user |
| (vcp, clips, sizeof(struct video_clip) * clipcount)) { |
| vfree(vcp); |
| return -EFAULT; |
| } |
| write_overlay_mask(file, vcp, clipcount); |
| vfree(vcp); |
| } |
| |
| fh->overlay_settings.is_set = 1; |
| if (fh->overlay_active != ZORAN_FREE && |
| zr->overlay_active != ZORAN_FREE) |
| zr->overlay_settings = fh->overlay_settings; |
| |
| if (on) |
| zr36057_overlay(zr, 1); |
| |
| /* Make sure the changes come into effect */ |
| return wait_grab_pending(zr); |
| } |
| |
| static int |
| setup_overlay (struct file *file, |
| int on) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| /* If there is nothing to do, return immediatly */ |
| if ((on && fh->overlay_active != ZORAN_FREE) || |
| (!on && fh->overlay_active == ZORAN_FREE)) |
| return 0; |
| |
| /* check whether we're touching someone else's overlay */ |
| if (on && zr->overlay_active != ZORAN_FREE && |
| fh->overlay_active == ZORAN_FREE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_overlay() - overlay is already active for another session\n", |
| ZR_DEVNAME(zr)); |
| return -EBUSY; |
| } |
| if (!on && zr->overlay_active != ZORAN_FREE && |
| fh->overlay_active == ZORAN_FREE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_overlay() - you cannot cancel someone else's session\n", |
| ZR_DEVNAME(zr)); |
| return -EPERM; |
| } |
| |
| if (on == 0) { |
| zr->overlay_active = fh->overlay_active = ZORAN_FREE; |
| zr->v4l_overlay_active = 0; |
| /* When a grab is running, the video simply |
| * won't be switched on any more */ |
| if (!zr->v4l_memgrab_active) |
| zr36057_overlay(zr, 0); |
| zr->overlay_mask = NULL; |
| } else { |
| if (!zr->buffer.base || !fh->overlay_settings.is_set) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_overlay() - buffer or window not set\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| if (!fh->overlay_settings.format) { |
| dprintk(1, |
| KERN_ERR |
| "%s: setup_overlay() - no overlay format set\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; |
| zr->v4l_overlay_active = 1; |
| zr->overlay_mask = fh->overlay_mask; |
| zr->overlay_settings = fh->overlay_settings; |
| if (!zr->v4l_memgrab_active) |
| zr36057_overlay(zr, 1); |
| /* When a grab is running, the video will be |
| * switched on when grab is finished */ |
| } |
| |
| /* Make sure the changes come into effect */ |
| return wait_grab_pending(zr); |
| } |
| |
| /* get the status of a buffer in the clients buffer queue */ |
| static int |
| zoran_v4l2_buffer_status (struct file *file, |
| struct v4l2_buffer *buf, |
| int num) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| |
| buf->flags = V4L2_BUF_FLAG_MAPPED; |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: |
| |
| /* check range */ |
| if (num < 0 || num >= fh->v4l_buffers.num_buffers || |
| !fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| buf->length = fh->v4l_buffers.buffer_size; |
| |
| /* get buffer */ |
| buf->bytesused = fh->v4l_buffers.buffer[num].bs.length; |
| if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE || |
| fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) { |
| buf->sequence = fh->v4l_buffers.buffer[num].bs.seq; |
| buf->flags |= V4L2_BUF_FLAG_DONE; |
| buf->timestamp = |
| fh->v4l_buffers.buffer[num].bs.timestamp; |
| } else { |
| buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| } |
| |
| if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) |
| buf->field = V4L2_FIELD_TOP; |
| else |
| buf->field = V4L2_FIELD_INTERLACED; |
| |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| |
| /* check range */ |
| if (num < 0 || num >= fh->jpg_buffers.num_buffers || |
| !fh->jpg_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? |
| V4L2_BUF_TYPE_VIDEO_CAPTURE : |
| V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| buf->length = fh->jpg_buffers.buffer_size; |
| |
| /* these variables are only written after frame has been captured */ |
| if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE || |
| fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) { |
| buf->sequence = fh->jpg_buffers.buffer[num].bs.seq; |
| buf->timestamp = |
| fh->jpg_buffers.buffer[num].bs.timestamp; |
| buf->bytesused = |
| fh->jpg_buffers.buffer[num].bs.length; |
| buf->flags |= V4L2_BUF_FLAG_DONE; |
| } else { |
| buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| } |
| |
| /* which fields are these? */ |
| if (fh->jpg_settings.TmpDcm != 1) |
| buf->field = |
| fh->jpg_settings. |
| odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; |
| else |
| buf->field = |
| fh->jpg_settings. |
| odd_even ? V4L2_FIELD_SEQ_TB : |
| V4L2_FIELD_SEQ_BT; |
| |
| break; |
| |
| default: |
| |
| dprintk(5, |
| KERN_ERR |
| "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n", |
| ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| return -EINVAL; |
| } |
| |
| buf->memory = V4L2_MEMORY_MMAP; |
| buf->index = num; |
| buf->m.offset = buf->length * num; |
| |
| return 0; |
| } |
| |
| static int |
| zoran_set_norm (struct zoran *zr, |
| int norm) /* VIDEO_MODE_* */ |
| { |
| int norm_encoder, on; |
| |
| if (zr->v4l_buffers.active != ZORAN_FREE || |
| zr->jpg_buffers.active != ZORAN_FREE) { |
| dprintk(1, |
| KERN_WARNING |
| "%s: set_norm() called while in playback/capture mode\n", |
| ZR_DEVNAME(zr)); |
| return -EBUSY; |
| } |
| |
| if (lock_norm && norm != zr->norm) { |
| if (lock_norm > 1) { |
| dprintk(1, |
| KERN_WARNING |
| "%s: set_norm() - TV standard is locked, can not switch norm\n", |
| ZR_DEVNAME(zr)); |
| return -EPERM; |
| } else { |
| dprintk(1, |
| KERN_WARNING |
| "%s: set_norm() - TV standard is locked, norm was not changed\n", |
| ZR_DEVNAME(zr)); |
| norm = zr->norm; |
| } |
| } |
| |
| if (norm != VIDEO_MODE_AUTO && |
| (norm < 0 || norm >= zr->card.norms || |
| !zr->card.tvn[norm])) { |
| dprintk(1, |
| KERN_ERR "%s: set_norm() - unsupported norm %d\n", |
| ZR_DEVNAME(zr), norm); |
| return -EINVAL; |
| } |
| |
| if (norm == VIDEO_MODE_AUTO) { |
| int status; |
| |
| /* if we have autodetect, ... */ |
| struct video_decoder_capability caps; |
| decoder_command(zr, DECODER_GET_CAPABILITIES, &caps); |
| if (!(caps.flags & VIDEO_DECODER_AUTO)) { |
| dprintk(1, KERN_ERR "%s: norm=auto unsupported\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| decoder_command(zr, DECODER_SET_NORM, &norm); |
| |
| /* let changes come into effect */ |
| ssleep(2); |
| |
| decoder_command(zr, DECODER_GET_STATUS, &status); |
| if (!(status & DECODER_STATUS_GOOD)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: set_norm() - no norm detected\n", |
| ZR_DEVNAME(zr)); |
| /* reset norm */ |
| decoder_command(zr, DECODER_SET_NORM, &zr->norm); |
| return -EIO; |
| } |
| |
| if (status & DECODER_STATUS_NTSC) |
| norm = VIDEO_MODE_NTSC; |
| else if (status & DECODER_STATUS_SECAM) |
| norm = VIDEO_MODE_SECAM; |
| else |
| norm = VIDEO_MODE_PAL; |
| } |
| zr->timing = zr->card.tvn[norm]; |
| norm_encoder = norm; |
| |
| /* We switch overlay off and on since a change in the |
| * norm needs different VFE settings */ |
| on = zr->overlay_active && !zr->v4l_memgrab_active; |
| if (on) |
| zr36057_overlay(zr, 0); |
| |
| decoder_command(zr, DECODER_SET_NORM, &norm); |
| encoder_command(zr, ENCODER_SET_NORM, &norm_encoder); |
| |
| if (on) |
| zr36057_overlay(zr, 1); |
| |
| /* Make sure the changes come into effect */ |
| zr->norm = norm; |
| |
| return 0; |
| } |
| |
| static int |
| zoran_set_input (struct zoran *zr, |
| int input) |
| { |
| int realinput; |
| |
| if (input == zr->input) { |
| return 0; |
| } |
| |
| if (zr->v4l_buffers.active != ZORAN_FREE || |
| zr->jpg_buffers.active != ZORAN_FREE) { |
| dprintk(1, |
| KERN_WARNING |
| "%s: set_input() called while in playback/capture mode\n", |
| ZR_DEVNAME(zr)); |
| return -EBUSY; |
| } |
| |
| if (input < 0 || input >= zr->card.inputs) { |
| dprintk(1, |
| KERN_ERR |
| "%s: set_input() - unnsupported input %d\n", |
| ZR_DEVNAME(zr), input); |
| return -EINVAL; |
| } |
| |
| realinput = zr->card.input[input].muxsel; |
| zr->input = input; |
| |
| decoder_command(zr, DECODER_SET_INPUT, &realinput); |
| |
| return 0; |
| } |
| |
| /* |
| * ioctl routine |
| */ |
| |
| static int |
| zoran_do_ioctl (struct inode *inode, |
| struct file *file, |
| unsigned int cmd, |
| void *arg) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| /* CAREFUL: used in multiple places here */ |
| struct zoran_jpg_settings settings; |
| |
| /* we might have older buffers lying around... We don't want |
| * to wait, but we do want to try cleaning them up ASAP. So |
| * we try to obtain the lock and free them. If that fails, we |
| * don't do anything and wait for the next turn. In the end, |
| * zoran_close() or a new allocation will still free them... |
| * This is just a 'the sooner the better' extra 'feature' |
| * |
| * We don't free the buffers right on munmap() because that |
| * causes oopses (kfree() inside munmap() oopses for no |
| * apparent reason - it's also not reproduceable in any way, |
| * but moving the free code outside the munmap() handler fixes |
| * all this... If someone knows why, please explain me (Ronald) |
| */ |
| if (mutex_trylock(&zr->resource_lock)) { |
| /* we obtained it! Let's try to free some things */ |
| if (fh->jpg_buffers.ready_to_be_freed) |
| jpg_fbuffer_free(file); |
| if (fh->v4l_buffers.ready_to_be_freed) |
| v4l_fbuffer_free(file); |
| |
| mutex_unlock(&zr->resource_lock); |
| } |
| |
| switch (cmd) { |
| |
| case VIDIOCGCAP: |
| { |
| struct video_capability *vcap = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr)); |
| |
| memset(vcap, 0, sizeof(struct video_capability)); |
| strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1); |
| vcap->type = ZORAN_VID_TYPE; |
| |
| vcap->channels = zr->card.inputs; |
| vcap->audios = 0; |
| mutex_lock(&zr->resource_lock); |
| vcap->maxwidth = BUZ_MAX_WIDTH; |
| vcap->maxheight = BUZ_MAX_HEIGHT; |
| vcap->minwidth = BUZ_MIN_WIDTH; |
| vcap->minheight = BUZ_MIN_HEIGHT; |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOCGCHAN: |
| { |
| struct video_channel *vchan = arg; |
| int channel = vchan->channel; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n", |
| ZR_DEVNAME(zr), vchan->channel); |
| |
| memset(vchan, 0, sizeof(struct video_channel)); |
| if (channel > zr->card.inputs || channel < 0) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOCGCHAN on not existing channel %d\n", |
| ZR_DEVNAME(zr), channel); |
| return -EINVAL; |
| } |
| |
| strcpy(vchan->name, zr->card.input[channel].name); |
| |
| vchan->tuners = 0; |
| vchan->flags = 0; |
| vchan->type = VIDEO_TYPE_CAMERA; |
| mutex_lock(&zr->resource_lock); |
| vchan->norm = zr->norm; |
| mutex_unlock(&zr->resource_lock); |
| vchan->channel = channel; |
| |
| return 0; |
| } |
| break; |
| |
| /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says: |
| * |
| * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input." |
| * * ^^^^^^^ |
| * * The famos BTTV driver has it implemented with a struct video_channel argument |
| * * and we follow it for compatibility reasons |
| * * |
| * * BTW: this is the only way the user can set the norm! |
| */ |
| |
| case VIDIOCSCHAN: |
| { |
| struct video_channel *vchan = arg; |
| int res; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOCSCHAN - channel=%d, norm=%d\n", |
| ZR_DEVNAME(zr), vchan->channel, vchan->norm); |
| |
| mutex_lock(&zr->resource_lock); |
| if ((res = zoran_set_input(zr, vchan->channel))) |
| goto schan_unlock_and_return; |
| if ((res = zoran_set_norm(zr, vchan->norm))) |
| goto schan_unlock_and_return; |
| |
| /* Make sure the changes come into effect */ |
| res = wait_grab_pending(zr); |
| schan_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOCGPICT: |
| { |
| struct video_picture *vpict = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr)); |
| |
| memset(vpict, 0, sizeof(struct video_picture)); |
| mutex_lock(&zr->resource_lock); |
| vpict->hue = zr->hue; |
| vpict->brightness = zr->brightness; |
| vpict->contrast = zr->contrast; |
| vpict->colour = zr->saturation; |
| if (fh->overlay_settings.format) { |
| vpict->depth = fh->overlay_settings.format->depth; |
| vpict->palette = fh->overlay_settings.format->palette; |
| } else { |
| vpict->depth = 0; |
| } |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOCSPICT: |
| { |
| struct video_picture *vpict = arg; |
| int i; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n", |
| ZR_DEVNAME(zr), vpict->brightness, vpict->hue, |
| vpict->colour, vpict->contrast, vpict->depth, |
| vpict->palette); |
| |
| for (i = 0; i < NUM_FORMATS; i++) { |
| const struct zoran_format *fmt = &zoran_formats[i]; |
| |
| if (fmt->palette != -1 && |
| fmt->flags & ZORAN_FORMAT_OVERLAY && |
| fmt->palette == vpict->palette && |
| fmt->depth == vpict->depth) |
| break; |
| } |
| if (i == NUM_FORMATS) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOCSPICT - Invalid palette %d\n", |
| ZR_DEVNAME(zr), vpict->palette); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| |
| decoder_command(zr, DECODER_SET_PICTURE, vpict); |
| |
| zr->hue = vpict->hue; |
| zr->contrast = vpict->contrast; |
| zr->saturation = vpict->colour; |
| zr->brightness = vpict->brightness; |
| |
| fh->overlay_settings.format = &zoran_formats[i]; |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOCCAPTURE: |
| { |
| int *on = arg, res; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n", |
| ZR_DEVNAME(zr), *on); |
| |
| mutex_lock(&zr->resource_lock); |
| res = setup_overlay(file, *on); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOCGWIN: |
| { |
| struct video_window *vwin = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr)); |
| |
| memset(vwin, 0, sizeof(struct video_window)); |
| mutex_lock(&zr->resource_lock); |
| vwin->x = fh->overlay_settings.x; |
| vwin->y = fh->overlay_settings.y; |
| vwin->width = fh->overlay_settings.width; |
| vwin->height = fh->overlay_settings.height; |
| mutex_unlock(&zr->resource_lock); |
| vwin->clipcount = 0; |
| return 0; |
| } |
| break; |
| |
| case VIDIOCSWIN: |
| { |
| struct video_window *vwin = arg; |
| int res; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n", |
| ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width, |
| vwin->height, vwin->clipcount); |
| |
| mutex_lock(&zr->resource_lock); |
| res = |
| setup_window(file, vwin->x, vwin->y, vwin->width, |
| vwin->height, vwin->clips, |
| vwin->clipcount, NULL); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOCGFBUF: |
| { |
| struct video_buffer *vbuf = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| *vbuf = zr->buffer; |
| mutex_unlock(&zr->resource_lock); |
| return 0; |
| } |
| break; |
| |
| case VIDIOCSFBUF: |
| { |
| struct video_buffer *vbuf = arg; |
| int i, res = 0; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n", |
| ZR_DEVNAME(zr), vbuf->base, vbuf->width, |
| vbuf->height, vbuf->depth, vbuf->bytesperline); |
| |
| for (i = 0; i < NUM_FORMATS; i++) |
| if (zoran_formats[i].depth == vbuf->depth) |
| break; |
| if (i == NUM_FORMATS) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOCSFBUF - invalid fbuf depth %d\n", |
| ZR_DEVNAME(zr), vbuf->depth); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| res = |
| setup_fbuffer(file, vbuf->base, &zoran_formats[i], |
| vbuf->width, vbuf->height, |
| vbuf->bytesperline); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOCSYNC: |
| { |
| int *frame = arg, res; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n", |
| ZR_DEVNAME(zr), *frame); |
| |
| mutex_lock(&zr->resource_lock); |
| res = v4l_sync(file, *frame); |
| mutex_unlock(&zr->resource_lock); |
| if (!res) |
| zr->v4l_sync_tail++; |
| return res; |
| } |
| break; |
| |
| case VIDIOCMCAPTURE: |
| { |
| struct video_mmap *vmap = arg; |
| int res; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n", |
| ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height, |
| vmap->format); |
| |
| mutex_lock(&zr->resource_lock); |
| res = v4l_grab(file, vmap); |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOCGMBUF: |
| { |
| struct video_mbuf *vmbuf = arg; |
| int i, res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr)); |
| |
| vmbuf->size = |
| fh->v4l_buffers.num_buffers * |
| fh->v4l_buffers.buffer_size; |
| vmbuf->frames = fh->v4l_buffers.num_buffers; |
| for (i = 0; i < vmbuf->frames; i++) { |
| vmbuf->offsets[i] = |
| i * fh->v4l_buffers.buffer_size; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOCGMBUF - buffers already allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto v4l1reqbuf_unlock_and_return; |
| } |
| |
| if (v4l_fbuffer_alloc(file)) { |
| res = -ENOMEM; |
| goto v4l1reqbuf_unlock_and_return; |
| } |
| |
| /* The next mmap will map the V4L buffers */ |
| fh->map_mode = ZORAN_MAP_MODE_RAW; |
| v4l1reqbuf_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOCGUNIT: |
| { |
| struct video_unit *vunit = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr)); |
| |
| vunit->video = zr->video_dev->minor; |
| vunit->vbi = VIDEO_NO_UNIT; |
| vunit->radio = VIDEO_NO_UNIT; |
| vunit->audio = VIDEO_NO_UNIT; |
| vunit->teletext = VIDEO_NO_UNIT; |
| |
| return 0; |
| } |
| break; |
| |
| /* |
| * RJ: In principal we could support subcaptures for V4L grabbing. |
| * Not even the famous BTTV driver has them, however. |
| * If there should be a strong demand, one could consider |
| * to implement them. |
| */ |
| case VIDIOCGCAPTURE: |
| { |
| dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| break; |
| |
| case VIDIOCSCAPTURE: |
| { |
| dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| break; |
| |
| case BUZIOC_G_PARAMS: |
| { |
| struct zoran_params *bparams = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr)); |
| |
| memset(bparams, 0, sizeof(struct zoran_params)); |
| bparams->major_version = MAJOR_VERSION; |
| bparams->minor_version = MINOR_VERSION; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| bparams->norm = zr->norm; |
| bparams->input = zr->input; |
| |
| bparams->decimation = fh->jpg_settings.decimation; |
| bparams->HorDcm = fh->jpg_settings.HorDcm; |
| bparams->VerDcm = fh->jpg_settings.VerDcm; |
| bparams->TmpDcm = fh->jpg_settings.TmpDcm; |
| bparams->field_per_buff = fh->jpg_settings.field_per_buff; |
| bparams->img_x = fh->jpg_settings.img_x; |
| bparams->img_y = fh->jpg_settings.img_y; |
| bparams->img_width = fh->jpg_settings.img_width; |
| bparams->img_height = fh->jpg_settings.img_height; |
| bparams->odd_even = fh->jpg_settings.odd_even; |
| |
| bparams->quality = fh->jpg_settings.jpg_comp.quality; |
| bparams->APPn = fh->jpg_settings.jpg_comp.APPn; |
| bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len; |
| memcpy(bparams->APP_data, |
| fh->jpg_settings.jpg_comp.APP_data, |
| sizeof(bparams->APP_data)); |
| bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len; |
| memcpy(bparams->COM_data, |
| fh->jpg_settings.jpg_comp.COM_data, |
| sizeof(bparams->COM_data)); |
| bparams->jpeg_markers = |
| fh->jpg_settings.jpg_comp.jpeg_markers; |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| bparams->VFIFO_FB = 0; |
| |
| return 0; |
| } |
| break; |
| |
| case BUZIOC_S_PARAMS: |
| { |
| struct zoran_params *bparams = arg; |
| int res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr)); |
| |
| settings.decimation = bparams->decimation; |
| settings.HorDcm = bparams->HorDcm; |
| settings.VerDcm = bparams->VerDcm; |
| settings.TmpDcm = bparams->TmpDcm; |
| settings.field_per_buff = bparams->field_per_buff; |
| settings.img_x = bparams->img_x; |
| settings.img_y = bparams->img_y; |
| settings.img_width = bparams->img_width; |
| settings.img_height = bparams->img_height; |
| settings.odd_even = bparams->odd_even; |
| |
| settings.jpg_comp.quality = bparams->quality; |
| settings.jpg_comp.APPn = bparams->APPn; |
| settings.jpg_comp.APP_len = bparams->APP_len; |
| memcpy(settings.jpg_comp.APP_data, bparams->APP_data, |
| sizeof(bparams->APP_data)); |
| settings.jpg_comp.COM_len = bparams->COM_len; |
| memcpy(settings.jpg_comp.COM_data, bparams->COM_data, |
| sizeof(bparams->COM_data)); |
| settings.jpg_comp.jpeg_markers = bparams->jpeg_markers; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (zr->codec_mode != BUZ_MODE_IDLE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto sparams_unlock_and_return; |
| } |
| |
| /* Check the params first before overwriting our |
| * nternal values */ |
| if (zoran_check_jpg_settings(zr, &settings)) { |
| res = -EINVAL; |
| goto sparams_unlock_and_return; |
| } |
| |
| fh->jpg_settings = settings; |
| sparams_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case BUZIOC_REQBUFS: |
| { |
| struct zoran_requestbuffers *breq = arg; |
| int res = 0; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n", |
| ZR_DEVNAME(zr), breq->count, breq->size); |
| |
| /* Enforce reasonable lower and upper limits */ |
| if (breq->count < 4) |
| breq->count = 4; /* Could be choosen smaller */ |
| if (breq->count > jpg_nbufs) |
| breq->count = jpg_nbufs; |
| breq->size = PAGE_ALIGN(breq->size); |
| if (breq->size < 8192) |
| breq->size = 8192; /* Arbitrary */ |
| /* breq->size is limited by 1 page for the stat_com |
| * tables to a Maximum of 2 MB */ |
| if (breq->size > jpg_bufsize) |
| breq->size = jpg_bufsize; |
| if (fh->jpg_buffers.need_contiguous && |
| breq->size > MAX_KMALLOC_MEM) |
| breq->size = MAX_KMALLOC_MEM; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: BUZIOC_REQBUFS - buffers allready allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto jpgreqbuf_unlock_and_return; |
| } |
| |
| fh->jpg_buffers.num_buffers = breq->count; |
| fh->jpg_buffers.buffer_size = breq->size; |
| |
| if (jpg_fbuffer_alloc(file)) { |
| res = -ENOMEM; |
| goto jpgreqbuf_unlock_and_return; |
| } |
| |
| /* The next mmap will map the MJPEG buffers - could |
| * also be *_PLAY, but it doesn't matter here */ |
| fh->map_mode = ZORAN_MAP_MODE_JPG_REC; |
| jpgreqbuf_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case BUZIOC_QBUF_CAPT: |
| { |
| int *frame = arg, res; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n", |
| ZR_DEVNAME(zr), *frame); |
| |
| mutex_lock(&zr->resource_lock); |
| res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case BUZIOC_QBUF_PLAY: |
| { |
| int *frame = arg, res; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n", |
| ZR_DEVNAME(zr), *frame); |
| |
| mutex_lock(&zr->resource_lock); |
| res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case BUZIOC_SYNC: |
| { |
| struct zoran_sync *bsync = arg; |
| int res; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| res = jpg_sync(file, bsync); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case BUZIOC_G_STATUS: |
| { |
| struct zoran_status *bstat = arg; |
| int norm, input, status, res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr)); |
| |
| if (zr->codec_mode != BUZ_MODE_IDLE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| input = zr->card.input[bstat->input].muxsel; |
| norm = VIDEO_MODE_AUTO; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (zr->codec_mode != BUZ_MODE_IDLE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto gstat_unlock_and_return; |
| } |
| |
| decoder_command(zr, DECODER_SET_INPUT, &input); |
| decoder_command(zr, DECODER_SET_NORM, &norm); |
| |
| /* sleep 1 second */ |
| ssleep(1); |
| |
| /* Get status of video decoder */ |
| decoder_command(zr, DECODER_GET_STATUS, &status); |
| |
| /* restore previous input and norm */ |
| input = zr->card.input[zr->input].muxsel; |
| decoder_command(zr, DECODER_SET_INPUT, &input); |
| decoder_command(zr, DECODER_SET_NORM, &zr->norm); |
| gstat_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| if (!res) { |
| bstat->signal = |
| (status & DECODER_STATUS_GOOD) ? 1 : 0; |
| if (status & DECODER_STATUS_NTSC) |
| bstat->norm = VIDEO_MODE_NTSC; |
| else if (status & DECODER_STATUS_SECAM) |
| bstat->norm = VIDEO_MODE_SECAM; |
| else |
| bstat->norm = VIDEO_MODE_PAL; |
| |
| bstat->color = |
| (status & DECODER_STATUS_COLOR) ? 1 : 0; |
| } |
| |
| return res; |
| } |
| break; |
| |
| /* The new video4linux2 capture interface - much nicer than video4linux1, since |
| * it allows for integrating the JPEG capturing calls inside standard v4l2 |
| */ |
| |
| case VIDIOC_QUERYCAP: |
| { |
| struct v4l2_capability *cap = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr)); |
| |
| memset(cap, 0, sizeof(*cap)); |
| strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1); |
| strncpy(cap->driver, "zoran", sizeof(cap->driver)-1); |
| snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", |
| pci_name(zr->pci_dev)); |
| cap->version = |
| KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION, |
| RELEASE_VERSION); |
| cap->capabilities = ZORAN_V4L2_VID_FLAGS; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_ENUM_FMT: |
| { |
| struct v4l2_fmtdesc *fmt = arg; |
| int index = fmt->index, num = -1, i, flag = 0, type = |
| fmt->type; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n", |
| ZR_DEVNAME(zr), fmt->index); |
| |
| switch (fmt->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| flag = ZORAN_FORMAT_CAPTURE; |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| flag = ZORAN_FORMAT_PLAYBACK; |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| flag = ZORAN_FORMAT_OVERLAY; |
| break; |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_ENUM_FMT - unknown type %d\n", |
| ZR_DEVNAME(zr), fmt->type); |
| return -EINVAL; |
| } |
| |
| for (i = 0; i < NUM_FORMATS; i++) { |
| if (zoran_formats[i].flags & flag) |
| num++; |
| if (num == fmt->index) |
| break; |
| } |
| if (fmt->index < 0 /* late, but not too late */ || |
| i == NUM_FORMATS) |
| return -EINVAL; |
| |
| memset(fmt, 0, sizeof(*fmt)); |
| fmt->index = index; |
| fmt->type = type; |
| strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1); |
| fmt->pixelformat = zoran_formats[i].fourcc; |
| if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) |
| fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_G_FMT: |
| { |
| struct v4l2_format *fmt = arg; |
| int type = fmt->type; |
| |
| dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr)); |
| |
| memset(fmt, 0, sizeof(*fmt)); |
| fmt->type = type; |
| |
| switch (fmt->type) { |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| |
| mutex_lock(&zr->resource_lock); |
| |
| fmt->fmt.win.w.left = fh->overlay_settings.x; |
| fmt->fmt.win.w.top = fh->overlay_settings.y; |
| fmt->fmt.win.w.width = fh->overlay_settings.width; |
| fmt->fmt.win.w.height = |
| fh->overlay_settings.height; |
| if (fh->overlay_settings.width * 2 > |
| BUZ_MAX_HEIGHT) |
| fmt->fmt.win.field = V4L2_FIELD_INTERLACED; |
| else |
| fmt->fmt.win.field = V4L2_FIELD_TOP; |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| break; |
| |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| fh->map_mode == ZORAN_MAP_MODE_RAW) { |
| |
| fmt->fmt.pix.width = |
| fh->v4l_settings.width; |
| fmt->fmt.pix.height = |
| fh->v4l_settings.height; |
| fmt->fmt.pix.sizeimage = |
| fh->v4l_settings.bytesperline * |
| fh->v4l_settings.height; |
| fmt->fmt.pix.pixelformat = |
| fh->v4l_settings.format->fourcc; |
| fmt->fmt.pix.colorspace = |
| fh->v4l_settings.format->colorspace; |
| fmt->fmt.pix.bytesperline = 0; |
| if (BUZ_MAX_HEIGHT < |
| (fh->v4l_settings.height * 2)) |
| fmt->fmt.pix.field = |
| V4L2_FIELD_INTERLACED; |
| else |
| fmt->fmt.pix.field = |
| V4L2_FIELD_TOP; |
| |
| } else { |
| |
| fmt->fmt.pix.width = |
| fh->jpg_settings.img_width / |
| fh->jpg_settings.HorDcm; |
| fmt->fmt.pix.height = |
| fh->jpg_settings.img_height / |
| (fh->jpg_settings.VerDcm * |
| fh->jpg_settings.TmpDcm); |
| fmt->fmt.pix.sizeimage = |
| zoran_v4l2_calc_bufsize(&fh-> |
| jpg_settings); |
| fmt->fmt.pix.pixelformat = |
| V4L2_PIX_FMT_MJPEG; |
| if (fh->jpg_settings.TmpDcm == 1) |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_SEQ_BT : |
| V4L2_FIELD_SEQ_BT); |
| else |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_TOP : |
| V4L2_FIELD_BOTTOM); |
| |
| fmt->fmt.pix.bytesperline = 0; |
| fmt->fmt.pix.colorspace = |
| V4L2_COLORSPACE_SMPTE170M; |
| } |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| break; |
| |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_G_FMT - unsupported type %d\n", |
| ZR_DEVNAME(zr), fmt->type); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_FMT: |
| { |
| struct v4l2_format *fmt = arg; |
| int i, res = 0; |
| __le32 printformat; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ", |
| ZR_DEVNAME(zr), fmt->type); |
| |
| switch (fmt->type) { |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| |
| dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", |
| fmt->fmt.win.w.left, fmt->fmt.win.w.top, |
| fmt->fmt.win.w.width, |
| fmt->fmt.win.w.height, |
| fmt->fmt.win.clipcount, |
| fmt->fmt.win.bitmap); |
| mutex_lock(&zr->resource_lock); |
| res = |
| setup_window(file, fmt->fmt.win.w.left, |
| fmt->fmt.win.w.top, |
| fmt->fmt.win.w.width, |
| fmt->fmt.win.w.height, |
| (struct video_clip __user *) |
| fmt->fmt.win.clips, |
| fmt->fmt.win.clipcount, |
| fmt->fmt.win.bitmap); |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| break; |
| |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| |
| printformat = |
| __cpu_to_le32(fmt->fmt.pix.pixelformat); |
| dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n", |
| fmt->fmt.pix.width, fmt->fmt.pix.height, |
| fmt->fmt.pix.pixelformat, |
| (char *) &printformat); |
| |
| if (fmt->fmt.pix.bytesperline > 0) { |
| dprintk(5, |
| KERN_ERR "%s: bpl not supported\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| /* we can be requested to do JPEG/raw playback/capture */ |
| if (! |
| (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| fmt->fmt.pix.pixelformat == |
| V4L2_PIX_FMT_MJPEG))) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n", |
| ZR_DEVNAME(zr), fmt->type, |
| fmt->fmt.pix.pixelformat, |
| (char *) &printformat); |
| return -EINVAL; |
| } |
| |
| if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { |
| mutex_lock(&zr->resource_lock); |
| |
| settings = fh->jpg_settings; |
| |
| if (fh->v4l_buffers.allocated || |
| fh->jpg_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FMT - cannot change capture mode\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto sfmtjpg_unlock_and_return; |
| } |
| |
| /* we actually need to set 'real' parameters now */ |
| if ((fmt->fmt.pix.height * 2) > |
| BUZ_MAX_HEIGHT) |
| settings.TmpDcm = 1; |
| else |
| settings.TmpDcm = 2; |
| settings.decimation = 0; |
| if (fmt->fmt.pix.height <= |
| fh->jpg_settings.img_height / 2) |
| settings.VerDcm = 2; |
| else |
| settings.VerDcm = 1; |
| if (fmt->fmt.pix.width <= |
| fh->jpg_settings.img_width / 4) |
| settings.HorDcm = 4; |
| else if (fmt->fmt.pix.width <= |
| fh->jpg_settings.img_width / 2) |
| settings.HorDcm = 2; |
| else |
| settings.HorDcm = 1; |
| if (settings.TmpDcm == 1) |
| settings.field_per_buff = 2; |
| else |
| settings.field_per_buff = 1; |
| |
| /* check */ |
| if ((res = |
| zoran_check_jpg_settings(zr, |
| &settings))) |
| goto sfmtjpg_unlock_and_return; |
| |
| /* it's ok, so set them */ |
| fh->jpg_settings = settings; |
| |
| /* tell the user what we actually did */ |
| fmt->fmt.pix.width = |
| settings.img_width / settings.HorDcm; |
| fmt->fmt.pix.height = |
| settings.img_height * 2 / |
| (settings.TmpDcm * settings.VerDcm); |
| if (settings.TmpDcm == 1) |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_SEQ_TB : |
| V4L2_FIELD_SEQ_BT); |
| else |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_TOP : |
| V4L2_FIELD_BOTTOM); |
| fh->jpg_buffers.buffer_size = |
| zoran_v4l2_calc_bufsize(&fh-> |
| jpg_settings); |
| fmt->fmt.pix.sizeimage = |
| fh->jpg_buffers.buffer_size; |
| |
| /* we hereby abuse this variable to show that |
| * we're gonna do mjpeg capture */ |
| fh->map_mode = |
| (fmt->type == |
| V4L2_BUF_TYPE_VIDEO_CAPTURE) ? |
| ZORAN_MAP_MODE_JPG_REC : |
| ZORAN_MAP_MODE_JPG_PLAY; |
| sfmtjpg_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| } else { |
| for (i = 0; i < NUM_FORMATS; i++) |
| if (fmt->fmt.pix.pixelformat == |
| zoran_formats[i].fourcc) |
| break; |
| if (i == NUM_FORMATS) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n", |
| ZR_DEVNAME(zr), |
| fmt->fmt.pix.pixelformat, |
| (char *) &printformat); |
| return -EINVAL; |
| } |
| mutex_lock(&zr->resource_lock); |
| if (fh->jpg_buffers.allocated || |
| (fh->v4l_buffers.allocated && |
| fh->v4l_buffers.active != |
| ZORAN_FREE)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FMT - cannot change capture mode\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto sfmtv4l_unlock_and_return; |
| } |
| if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) |
| fmt->fmt.pix.height = |
| BUZ_MAX_HEIGHT; |
| if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) |
| fmt->fmt.pix.width = BUZ_MAX_WIDTH; |
| |
| if ((res = |
| zoran_v4l_set_format(file, |
| fmt->fmt.pix. |
| width, |
| fmt->fmt.pix. |
| height, |
| &zoran_formats |
| [i]))) |
| goto sfmtv4l_unlock_and_return; |
| |
| /* tell the user the |
| * results/missing stuff */ |
| fmt->fmt.pix.sizeimage = |
| fh->v4l_settings.height * |
| fh->v4l_settings.bytesperline; |
| if (BUZ_MAX_HEIGHT < |
| (fh->v4l_settings.height * 2)) |
| fmt->fmt.pix.field = |
| V4L2_FIELD_INTERLACED; |
| else |
| fmt->fmt.pix.field = |
| V4L2_FIELD_TOP; |
| |
| fh->map_mode = ZORAN_MAP_MODE_RAW; |
| sfmtv4l_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| } |
| |
| break; |
| |
| default: |
| dprintk(3, "unsupported\n"); |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FMT - unsupported type %d\n", |
| ZR_DEVNAME(zr), fmt->type); |
| return -EINVAL; |
| } |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_G_FBUF: |
| { |
| struct v4l2_framebuffer *fb = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr)); |
| |
| memset(fb, 0, sizeof(*fb)); |
| mutex_lock(&zr->resource_lock); |
| fb->base = zr->buffer.base; |
| fb->fmt.width = zr->buffer.width; |
| fb->fmt.height = zr->buffer.height; |
| if (zr->overlay_settings.format) { |
| fb->fmt.pixelformat = |
| fh->overlay_settings.format->fourcc; |
| } |
| fb->fmt.bytesperline = zr->buffer.bytesperline; |
| mutex_unlock(&zr->resource_lock); |
| fb->fmt.colorspace = V4L2_COLORSPACE_SRGB; |
| fb->fmt.field = V4L2_FIELD_INTERLACED; |
| fb->flags = V4L2_FBUF_FLAG_OVERLAY; |
| fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_FBUF: |
| { |
| int i, res = 0; |
| struct v4l2_framebuffer *fb = arg; |
| __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat); |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n", |
| ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height, |
| fb->fmt.bytesperline, fb->fmt.pixelformat, |
| (char *) &printformat); |
| |
| for (i = 0; i < NUM_FORMATS; i++) |
| if (zoran_formats[i].fourcc == fb->fmt.pixelformat) |
| break; |
| if (i == NUM_FORMATS) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", |
| ZR_DEVNAME(zr), fb->fmt.pixelformat, |
| (char *) &printformat); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| res = |
| setup_fbuffer(file, fb->base, &zoran_formats[i], |
| fb->fmt.width, fb->fmt.height, |
| fb->fmt.bytesperline); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_OVERLAY: |
| { |
| int *on = arg, res; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n", |
| ZR_DEVNAME(zr), *on); |
| |
| mutex_lock(&zr->resource_lock); |
| res = setup_overlay(file, *on); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_REQBUFS: |
| { |
| struct v4l2_requestbuffers *req = arg; |
| int res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n", |
| ZR_DEVNAME(zr), req->type); |
| |
| if (req->memory != V4L2_MEMORY_MMAP) { |
| dprintk(1, |
| KERN_ERR |
| "%s: only MEMORY_MMAP capture is supported, not %d\n", |
| ZR_DEVNAME(zr), req->memory); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_REQBUFS - buffers allready allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto v4l2reqbuf_unlock_and_return; |
| } |
| |
| if (fh->map_mode == ZORAN_MAP_MODE_RAW && |
| req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| |
| /* control user input */ |
| if (req->count < 2) |
| req->count = 2; |
| if (req->count > v4l_nbufs) |
| req->count = v4l_nbufs; |
| fh->v4l_buffers.num_buffers = req->count; |
| |
| if (v4l_fbuffer_alloc(file)) { |
| res = -ENOMEM; |
| goto v4l2reqbuf_unlock_and_return; |
| } |
| |
| /* The next mmap will map the V4L buffers */ |
| fh->map_mode = ZORAN_MAP_MODE_RAW; |
| |
| } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || |
| fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { |
| |
| /* we need to calculate size ourselves now */ |
| if (req->count < 4) |
| req->count = 4; |
| if (req->count > jpg_nbufs) |
| req->count = jpg_nbufs; |
| fh->jpg_buffers.num_buffers = req->count; |
| fh->jpg_buffers.buffer_size = |
| zoran_v4l2_calc_bufsize(&fh->jpg_settings); |
| |
| if (jpg_fbuffer_alloc(file)) { |
| res = -ENOMEM; |
| goto v4l2reqbuf_unlock_and_return; |
| } |
| |
| /* The next mmap will map the MJPEG buffers */ |
| if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| fh->map_mode = ZORAN_MAP_MODE_JPG_REC; |
| else |
| fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY; |
| |
| } else { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_REQBUFS - unknown type %d\n", |
| ZR_DEVNAME(zr), req->type); |
| res = -EINVAL; |
| goto v4l2reqbuf_unlock_and_return; |
| } |
| v4l2reqbuf_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_QUERYBUF: |
| { |
| struct v4l2_buffer *buf = arg; |
| __u32 type = buf->type; |
| int index = buf->index, res; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n", |
| ZR_DEVNAME(zr), buf->index, buf->type); |
| |
| memset(buf, 0, sizeof(*buf)); |
| buf->type = type; |
| buf->index = index; |
| |
| mutex_lock(&zr->resource_lock); |
| res = zoran_v4l2_buffer_status(file, buf, buf->index); |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_QBUF: |
| { |
| struct v4l2_buffer *buf = arg; |
| int res = 0, codec_mode, buf_type; |
| |
| dprintk(3, |
| KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n", |
| ZR_DEVNAME(zr), buf->type, buf->index); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: |
| if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| res = -EINVAL; |
| goto qbuf_unlock_and_return; |
| } |
| |
| res = zoran_v4l_queue_frame(file, buf->index); |
| if (res) |
| goto qbuf_unlock_and_return; |
| if (!zr->v4l_memgrab_active && |
| fh->v4l_buffers.active == ZORAN_LOCKED) |
| zr36057_set_memgrab(zr, 1); |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { |
| buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| codec_mode = BUZ_MODE_MOTION_DECOMPRESS; |
| } else { |
| buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| codec_mode = BUZ_MODE_MOTION_COMPRESS; |
| } |
| |
| if (buf->type != buf_type) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| res = -EINVAL; |
| goto qbuf_unlock_and_return; |
| } |
| |
| res = |
| zoran_jpg_queue_frame(file, buf->index, |
| codec_mode); |
| if (res != 0) |
| goto qbuf_unlock_and_return; |
| if (zr->codec_mode == BUZ_MODE_IDLE && |
| fh->jpg_buffers.active == ZORAN_LOCKED) { |
| zr36057_enable_jpg(zr, codec_mode); |
| } |
| break; |
| |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_QBUF - unsupported type %d\n", |
| ZR_DEVNAME(zr), buf->type); |
| res = -EINVAL; |
| goto qbuf_unlock_and_return; |
| } |
| qbuf_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_DQBUF: |
| { |
| struct v4l2_buffer *buf = arg; |
| int res = 0, buf_type, num = -1; /* compiler borks here (?) */ |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n", |
| ZR_DEVNAME(zr), buf->type); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: |
| if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| res = -EINVAL; |
| goto dqbuf_unlock_and_return; |
| } |
| |
| num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; |
| if (file->f_flags & O_NONBLOCK && |
| zr->v4l_buffers.buffer[num].state != |
| BUZ_STATE_DONE) { |
| res = -EAGAIN; |
| goto dqbuf_unlock_and_return; |
| } |
| res = v4l_sync(file, num); |
| if (res) |
| goto dqbuf_unlock_and_return; |
| else |
| zr->v4l_sync_tail++; |
| res = zoran_v4l2_buffer_status(file, buf, num); |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| { |
| struct zoran_sync bs; |
| |
| if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) |
| buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| else |
| buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| |
| if (buf->type != buf_type) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", |
| ZR_DEVNAME(zr), buf->type, fh->map_mode); |
| res = -EINVAL; |
| goto dqbuf_unlock_and_return; |
| } |
| |
| num = |
| zr->jpg_pend[zr-> |
| jpg_que_tail & BUZ_MASK_FRAME]; |
| |
| if (file->f_flags & O_NONBLOCK && |
| zr->jpg_buffers.buffer[num].state != |
| BUZ_STATE_DONE) { |
| res = -EAGAIN; |
| goto dqbuf_unlock_and_return; |
| } |
| res = jpg_sync(file, &bs); |
| if (res) |
| goto dqbuf_unlock_and_return; |
| res = |
| zoran_v4l2_buffer_status(file, buf, bs.frame); |
| break; |
| } |
| |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_DQBUF - unsupported type %d\n", |
| ZR_DEVNAME(zr), buf->type); |
| res = -EINVAL; |
| goto dqbuf_unlock_and_return; |
| } |
| dqbuf_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_STREAMON: |
| { |
| int res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: /* raw capture */ |
| if (zr->v4l_buffers.active != ZORAN_ACTIVE || |
| fh->v4l_buffers.active != ZORAN_ACTIVE) { |
| res = -EBUSY; |
| goto strmon_unlock_and_return; |
| } |
| |
| zr->v4l_buffers.active = fh->v4l_buffers.active = |
| ZORAN_LOCKED; |
| zr->v4l_settings = fh->v4l_settings; |
| |
| zr->v4l_sync_tail = zr->v4l_pend_tail; |
| if (!zr->v4l_memgrab_active && |
| zr->v4l_pend_head != zr->v4l_pend_tail) { |
| zr36057_set_memgrab(zr, 1); |
| } |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| /* what is the codec mode right now? */ |
| if (zr->jpg_buffers.active != ZORAN_ACTIVE || |
| fh->jpg_buffers.active != ZORAN_ACTIVE) { |
| res = -EBUSY; |
| goto strmon_unlock_and_return; |
| } |
| |
| zr->jpg_buffers.active = fh->jpg_buffers.active = |
| ZORAN_LOCKED; |
| |
| if (zr->jpg_que_head != zr->jpg_que_tail) { |
| /* Start the jpeg codec when the first frame is queued */ |
| jpeg_start(zr); |
| } |
| |
| break; |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_STREAMON - invalid map mode %d\n", |
| ZR_DEVNAME(zr), fh->map_mode); |
| res = -EINVAL; |
| goto strmon_unlock_and_return; |
| } |
| strmon_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_STREAMOFF: |
| { |
| int i, res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: /* raw capture */ |
| if (fh->v4l_buffers.active == ZORAN_FREE && |
| zr->v4l_buffers.active != ZORAN_FREE) { |
| res = -EPERM; /* stay off other's settings! */ |
| goto strmoff_unlock_and_return; |
| } |
| if (zr->v4l_buffers.active == ZORAN_FREE) |
| goto strmoff_unlock_and_return; |
| |
| /* unload capture */ |
| if (zr->v4l_memgrab_active) { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| zr36057_set_memgrab(zr, 0); |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| } |
| |
| for (i = 0; i < fh->v4l_buffers.num_buffers; i++) |
| zr->v4l_buffers.buffer[i].state = |
| BUZ_STATE_USER; |
| fh->v4l_buffers = zr->v4l_buffers; |
| |
| zr->v4l_buffers.active = fh->v4l_buffers.active = |
| ZORAN_FREE; |
| |
| zr->v4l_grab_seq = 0; |
| zr->v4l_pend_head = zr->v4l_pend_tail = 0; |
| zr->v4l_sync_tail = 0; |
| |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| if (fh->jpg_buffers.active == ZORAN_FREE && |
| zr->jpg_buffers.active != ZORAN_FREE) { |
| res = -EPERM; /* stay off other's settings! */ |
| goto strmoff_unlock_and_return; |
| } |
| if (zr->jpg_buffers.active == ZORAN_FREE) |
| goto strmoff_unlock_and_return; |
| |
| res = |
| jpg_qbuf(file, -1, |
| (fh->map_mode == |
| ZORAN_MAP_MODE_JPG_REC) ? |
| BUZ_MODE_MOTION_COMPRESS : |
| BUZ_MODE_MOTION_DECOMPRESS); |
| if (res) |
| goto strmoff_unlock_and_return; |
| break; |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", |
| ZR_DEVNAME(zr), fh->map_mode); |
| res = -EINVAL; |
| goto strmoff_unlock_and_return; |
| } |
| strmoff_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_QUERYCTRL: |
| { |
| struct v4l2_queryctrl *ctrl = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n", |
| ZR_DEVNAME(zr), ctrl->id); |
| |
| /* we only support hue/saturation/contrast/brightness */ |
| if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| ctrl->id > V4L2_CID_HUE) |
| return -EINVAL; |
| else { |
| int id = ctrl->id; |
| memset(ctrl, 0, sizeof(*ctrl)); |
| ctrl->id = id; |
| } |
| |
| switch (ctrl->id) { |
| case V4L2_CID_BRIGHTNESS: |
| strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1); |
| break; |
| case V4L2_CID_CONTRAST: |
| strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1); |
| break; |
| case V4L2_CID_SATURATION: |
| strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1); |
| break; |
| case V4L2_CID_HUE: |
| strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1); |
| break; |
| } |
| |
| ctrl->minimum = 0; |
| ctrl->maximum = 65535; |
| ctrl->step = 1; |
| ctrl->default_value = 32768; |
| ctrl->type = V4L2_CTRL_TYPE_INTEGER; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_G_CTRL: |
| { |
| struct v4l2_control *ctrl = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n", |
| ZR_DEVNAME(zr), ctrl->id); |
| |
| /* we only support hue/saturation/contrast/brightness */ |
| if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| ctrl->id > V4L2_CID_HUE) |
| return -EINVAL; |
| |
| mutex_lock(&zr->resource_lock); |
| switch (ctrl->id) { |
| case V4L2_CID_BRIGHTNESS: |
| ctrl->value = zr->brightness; |
| break; |
| case V4L2_CID_CONTRAST: |
| ctrl->value = zr->contrast; |
| break; |
| case V4L2_CID_SATURATION: |
| ctrl->value = zr->saturation; |
| break; |
| case V4L2_CID_HUE: |
| ctrl->value = zr->hue; |
| break; |
| } |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_CTRL: |
| { |
| struct v4l2_control *ctrl = arg; |
| struct video_picture pict; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n", |
| ZR_DEVNAME(zr), ctrl->id); |
| |
| /* we only support hue/saturation/contrast/brightness */ |
| if (ctrl->id < V4L2_CID_BRIGHTNESS || |
| ctrl->id > V4L2_CID_HUE) |
| return -EINVAL; |
| |
| if (ctrl->value < 0 || ctrl->value > 65535) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n", |
| ZR_DEVNAME(zr), ctrl->value, ctrl->id); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| switch (ctrl->id) { |
| case V4L2_CID_BRIGHTNESS: |
| zr->brightness = ctrl->value; |
| break; |
| case V4L2_CID_CONTRAST: |
| zr->contrast = ctrl->value; |
| break; |
| case V4L2_CID_SATURATION: |
| zr->saturation = ctrl->value; |
| break; |
| case V4L2_CID_HUE: |
| zr->hue = ctrl->value; |
| break; |
| } |
| pict.brightness = zr->brightness; |
| pict.contrast = zr->contrast; |
| pict.colour = zr->saturation; |
| pict.hue = zr->hue; |
| |
| decoder_command(zr, DECODER_SET_PICTURE, &pict); |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_ENUMSTD: |
| { |
| struct v4l2_standard *std = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n", |
| ZR_DEVNAME(zr), std->index); |
| |
| if (std->index < 0 || std->index >= (zr->card.norms + 1)) |
| return -EINVAL; |
| else { |
| int id = std->index; |
| memset(std, 0, sizeof(*std)); |
| std->index = id; |
| } |
| |
| if (std->index == zr->card.norms) { |
| /* if we have autodetect, ... */ |
| struct video_decoder_capability caps; |
| decoder_command(zr, DECODER_GET_CAPABILITIES, |
| &caps); |
| if (caps.flags & VIDEO_DECODER_AUTO) { |
| std->id = V4L2_STD_ALL; |
| strncpy(std->name, "Autodetect", sizeof(std->name)-1); |
| return 0; |
| } else |
| return -EINVAL; |
| } |
| switch (std->index) { |
| case 0: |
| std->id = V4L2_STD_PAL; |
| strncpy(std->name, "PAL", sizeof(std->name)-1); |
| std->frameperiod.numerator = 1; |
| std->frameperiod.denominator = 25; |
| std->framelines = zr->card.tvn[0]->Ht; |
| break; |
| case 1: |
| std->id = V4L2_STD_NTSC; |
| strncpy(std->name, "NTSC", sizeof(std->name)-1); |
| std->frameperiod.numerator = 1001; |
| std->frameperiod.denominator = 30000; |
| std->framelines = zr->card.tvn[1]->Ht; |
| break; |
| case 2: |
| std->id = V4L2_STD_SECAM; |
| strncpy(std->name, "SECAM", sizeof(std->name)-1); |
| std->frameperiod.numerator = 1; |
| std->frameperiod.denominator = 25; |
| std->framelines = zr->card.tvn[2]->Ht; |
| break; |
| } |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_G_STD: |
| { |
| v4l2_std_id *std = arg; |
| int norm; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| norm = zr->norm; |
| mutex_unlock(&zr->resource_lock); |
| |
| switch (norm) { |
| case VIDEO_MODE_PAL: |
| *std = V4L2_STD_PAL; |
| break; |
| case VIDEO_MODE_NTSC: |
| *std = V4L2_STD_NTSC; |
| break; |
| case VIDEO_MODE_SECAM: |
| *std = V4L2_STD_SECAM; |
| break; |
| } |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_STD: |
| { |
| int norm = -1, res = 0; |
| v4l2_std_id *std = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n", |
| ZR_DEVNAME(zr), (unsigned long long)*std); |
| |
| if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL)) |
| norm = VIDEO_MODE_PAL; |
| else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC)) |
| norm = VIDEO_MODE_NTSC; |
| else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM)) |
| norm = VIDEO_MODE_SECAM; |
| else if (*std == V4L2_STD_ALL) |
| norm = VIDEO_MODE_AUTO; |
| else { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_STD - invalid norm 0x%llx\n", |
| ZR_DEVNAME(zr), (unsigned long long)*std); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&zr->resource_lock); |
| if ((res = zoran_set_norm(zr, norm))) |
| goto sstd_unlock_and_return; |
| |
| res = wait_grab_pending(zr); |
| sstd_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOC_ENUMINPUT: |
| { |
| struct v4l2_input *inp = arg; |
| int status; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n", |
| ZR_DEVNAME(zr), inp->index); |
| |
| if (inp->index < 0 || inp->index >= zr->card.inputs) |
| return -EINVAL; |
| else { |
| int id = inp->index; |
| memset(inp, 0, sizeof(*inp)); |
| inp->index = id; |
| } |
| |
| strncpy(inp->name, zr->card.input[inp->index].name, |
| sizeof(inp->name) - 1); |
| inp->type = V4L2_INPUT_TYPE_CAMERA; |
| inp->std = V4L2_STD_ALL; |
| |
| /* Get status of video decoder */ |
| mutex_lock(&zr->resource_lock); |
| decoder_command(zr, DECODER_GET_STATUS, &status); |
| mutex_unlock(&zr->resource_lock); |
| |
| if (!(status & DECODER_STATUS_GOOD)) { |
| inp->status |= V4L2_IN_ST_NO_POWER; |
| inp->status |= V4L2_IN_ST_NO_SIGNAL; |
| } |
| if (!(status & DECODER_STATUS_COLOR)) |
| inp->status |= V4L2_IN_ST_NO_COLOR; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_G_INPUT: |
| { |
| int *input = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr)); |
| |
| mutex_lock(&zr->resource_lock); |
| *input = zr->input; |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_INPUT: |
| { |
| int *input = arg, res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n", |
| ZR_DEVNAME(zr), *input); |
| |
| mutex_lock(&zr->resource_lock); |
| if ((res = zoran_set_input(zr, *input))) |
| goto sinput_unlock_and_return; |
| |
| /* Make sure the changes come into effect */ |
| res = wait_grab_pending(zr); |
| sinput_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOC_ENUMOUTPUT: |
| { |
| struct v4l2_output *outp = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n", |
| ZR_DEVNAME(zr), outp->index); |
| |
| if (outp->index != 0) |
| return -EINVAL; |
| |
| memset(outp, 0, sizeof(*outp)); |
| outp->index = 0; |
| outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; |
| strncpy(outp->name, "Autodetect", sizeof(outp->name)-1); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_G_OUTPUT: |
| { |
| int *output = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr)); |
| |
| *output = 0; |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_OUTPUT: |
| { |
| int *output = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n", |
| ZR_DEVNAME(zr), *output); |
| |
| if (*output != 0) |
| return -EINVAL; |
| |
| return 0; |
| } |
| break; |
| |
| /* cropping (sub-frame capture) */ |
| case VIDIOC_CROPCAP: |
| { |
| struct v4l2_cropcap *cropcap = arg; |
| int type = cropcap->type, res = 0; |
| |
| dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n", |
| ZR_DEVNAME(zr), cropcap->type); |
| |
| memset(cropcap, 0, sizeof(*cropcap)); |
| cropcap->type = type; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto cropcap_unlock_and_return; |
| } |
| |
| cropcap->bounds.top = cropcap->bounds.left = 0; |
| cropcap->bounds.width = BUZ_MAX_WIDTH; |
| cropcap->bounds.height = BUZ_MAX_HEIGHT; |
| cropcap->defrect.top = cropcap->defrect.left = 0; |
| cropcap->defrect.width = BUZ_MIN_WIDTH; |
| cropcap->defrect.height = BUZ_MIN_HEIGHT; |
| cropcap_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOC_G_CROP: |
| { |
| struct v4l2_crop *crop = arg; |
| int type = crop->type, res = 0; |
| |
| dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n", |
| ZR_DEVNAME(zr), crop->type); |
| |
| memset(crop, 0, sizeof(*crop)); |
| crop->type = type; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto gcrop_unlock_and_return; |
| } |
| |
| crop->c.top = fh->jpg_settings.img_y; |
| crop->c.left = fh->jpg_settings.img_x; |
| crop->c.width = fh->jpg_settings.img_width; |
| crop->c.height = fh->jpg_settings.img_height; |
| |
| gcrop_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| break; |
| |
| case VIDIOC_S_CROP: |
| { |
| struct v4l2_crop *crop = arg; |
| int res = 0; |
| |
| settings = fh->jpg_settings; |
| |
| dprintk(3, |
| KERN_ERR |
| "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n", |
| ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top, |
| crop->c.width, crop->c.height); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_S_CROP - cannot change settings while active\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto scrop_unlock_and_return; |
| } |
| |
| if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| fh->map_mode == ZORAN_MAP_MODE_RAW)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", |
| ZR_DEVNAME(zr)); |
| res = -EINVAL; |
| goto scrop_unlock_and_return; |
| } |
| |
| /* move into a form that we understand */ |
| settings.img_x = crop->c.left; |
| settings.img_y = crop->c.top; |
| settings.img_width = crop->c.width; |
| settings.img_height = crop->c.height; |
| |
| /* check validity */ |
| if ((res = zoran_check_jpg_settings(zr, &settings))) |
| goto scrop_unlock_and_return; |
| |
| /* accept */ |
| fh->jpg_settings = settings; |
| |
| scrop_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| return res; |
| } |
| break; |
| |
| case VIDIOC_G_JPEGCOMP: |
| { |
| struct v4l2_jpegcompression *params = arg; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n", |
| ZR_DEVNAME(zr)); |
| |
| memset(params, 0, sizeof(*params)); |
| |
| mutex_lock(&zr->resource_lock); |
| |
| params->quality = fh->jpg_settings.jpg_comp.quality; |
| params->APPn = fh->jpg_settings.jpg_comp.APPn; |
| memcpy(params->APP_data, |
| fh->jpg_settings.jpg_comp.APP_data, |
| fh->jpg_settings.jpg_comp.APP_len); |
| params->APP_len = fh->jpg_settings.jpg_comp.APP_len; |
| memcpy(params->COM_data, |
| fh->jpg_settings.jpg_comp.COM_data, |
| fh->jpg_settings.jpg_comp.COM_len); |
| params->COM_len = fh->jpg_settings.jpg_comp.COM_len; |
| params->jpeg_markers = |
| fh->jpg_settings.jpg_comp.jpeg_markers; |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_S_JPEGCOMP: |
| { |
| struct v4l2_jpegcompression *params = arg; |
| int res = 0; |
| |
| settings = fh->jpg_settings; |
| |
| dprintk(3, |
| KERN_DEBUG |
| "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n", |
| ZR_DEVNAME(zr), params->quality, params->APPn, |
| params->APP_len, params->COM_len); |
| |
| settings.jpg_comp = *params; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->v4l_buffers.active != ZORAN_FREE || |
| fh->jpg_buffers.active != ZORAN_FREE) { |
| dprintk(1, |
| KERN_WARNING |
| "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", |
| ZR_DEVNAME(zr)); |
| res = -EBUSY; |
| goto sjpegc_unlock_and_return; |
| } |
| |
| if ((res = zoran_check_jpg_settings(zr, &settings))) |
| goto sjpegc_unlock_and_return; |
| if (!fh->jpg_buffers.allocated) |
| fh->jpg_buffers.buffer_size = |
| zoran_v4l2_calc_bufsize(&fh->jpg_settings); |
| fh->jpg_settings.jpg_comp = *params = settings.jpg_comp; |
| sjpegc_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return 0; |
| } |
| break; |
| |
| case VIDIOC_QUERYSTD: /* why is this useful? */ |
| { |
| v4l2_std_id *std = arg; |
| |
| dprintk(3, |
| KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n", |
| ZR_DEVNAME(zr), (unsigned long long)*std); |
| |
| if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC || |
| *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM && |
| zr->card.norms == 3)) { |
| return 0; |
| } |
| |
| return -EINVAL; |
| } |
| break; |
| |
| case VIDIOC_TRY_FMT: |
| { |
| struct v4l2_format *fmt = arg; |
| int res = 0; |
| |
| dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n", |
| ZR_DEVNAME(zr), fmt->type); |
| |
| switch (fmt->type) { |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| mutex_lock(&zr->resource_lock); |
| |
| if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH) |
| fmt->fmt.win.w.width = BUZ_MAX_WIDTH; |
| if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH) |
| fmt->fmt.win.w.width = BUZ_MIN_WIDTH; |
| if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT) |
| fmt->fmt.win.w.height = BUZ_MAX_HEIGHT; |
| if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT) |
| fmt->fmt.win.w.height = BUZ_MIN_HEIGHT; |
| |
| mutex_unlock(&zr->resource_lock); |
| break; |
| |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| if (fmt->fmt.pix.bytesperline > 0) |
| return -EINVAL; |
| |
| mutex_lock(&zr->resource_lock); |
| |
| if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) { |
| settings = fh->jpg_settings; |
| |
| /* we actually need to set 'real' parameters now */ |
| if ((fmt->fmt.pix.height * 2) > |
| BUZ_MAX_HEIGHT) |
| settings.TmpDcm = 1; |
| else |
| settings.TmpDcm = 2; |
| settings.decimation = 0; |
| if (fmt->fmt.pix.height <= |
| fh->jpg_settings.img_height / 2) |
| settings.VerDcm = 2; |
| else |
| settings.VerDcm = 1; |
| if (fmt->fmt.pix.width <= |
| fh->jpg_settings.img_width / 4) |
| settings.HorDcm = 4; |
| else if (fmt->fmt.pix.width <= |
| fh->jpg_settings.img_width / 2) |
| settings.HorDcm = 2; |
| else |
| settings.HorDcm = 1; |
| if (settings.TmpDcm == 1) |
| settings.field_per_buff = 2; |
| else |
| settings.field_per_buff = 1; |
| |
| /* check */ |
| if ((res = |
| zoran_check_jpg_settings(zr, |
| &settings))) |
| goto tryfmt_unlock_and_return; |
| |
| /* tell the user what we actually did */ |
| fmt->fmt.pix.width = |
| settings.img_width / settings.HorDcm; |
| fmt->fmt.pix.height = |
| settings.img_height * 2 / |
| (settings.TmpDcm * settings.VerDcm); |
| if (settings.TmpDcm == 1) |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_SEQ_TB : |
| V4L2_FIELD_SEQ_BT); |
| else |
| fmt->fmt.pix.field = |
| (fh->jpg_settings. |
| odd_even ? V4L2_FIELD_TOP : |
| V4L2_FIELD_BOTTOM); |
| |
| fmt->fmt.pix.sizeimage = |
| zoran_v4l2_calc_bufsize(&settings); |
| } else if (fmt->type == |
| V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| int i; |
| |
| for (i = 0; i < NUM_FORMATS; i++) |
| if (zoran_formats[i].fourcc == |
| fmt->fmt.pix.pixelformat) |
| break; |
| if (i == NUM_FORMATS) { |
| res = -EINVAL; |
| goto tryfmt_unlock_and_return; |
| } |
| |
| if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) |
| fmt->fmt.pix.width = BUZ_MAX_WIDTH; |
| if (fmt->fmt.pix.width < BUZ_MIN_WIDTH) |
| fmt->fmt.pix.width = BUZ_MIN_WIDTH; |
| if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) |
| fmt->fmt.pix.height = |
| BUZ_MAX_HEIGHT; |
| if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT) |
| fmt->fmt.pix.height = |
| BUZ_MIN_HEIGHT; |
| } else { |
| res = -EINVAL; |
| goto tryfmt_unlock_and_return; |
| } |
| tryfmt_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| break; |
| |
| default: |
| dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n", |
| ZR_DEVNAME(zr), cmd); |
| return -ENOIOCTLCMD; |
| break; |
| |
| } |
| return 0; |
| } |
| |
| |
| static int |
| zoran_ioctl (struct inode *inode, |
| struct file *file, |
| unsigned int cmd, |
| unsigned long arg) |
| { |
| return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl); |
| } |
| |
| static unsigned int |
| zoran_poll (struct file *file, |
| poll_table *wait) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int res = 0, frame; |
| unsigned long flags; |
| |
| /* we should check whether buffers are ready to be synced on |
| * (w/o waits - O_NONBLOCK) here |
| * if ready for read (sync), return POLLIN|POLLRDNORM, |
| * if ready for write (sync), return POLLOUT|POLLWRNORM, |
| * if error, return POLLERR, |
| * if no buffers queued or so, return POLLNVAL |
| */ |
| |
| mutex_lock(&zr->resource_lock); |
| |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_RAW: |
| poll_wait(file, &zr->v4l_capq, wait); |
| frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| dprintk(3, |
| KERN_DEBUG |
| "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n", |
| ZR_DEVNAME(zr), __func__, |
| "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail, |
| "UPMD"[zr->v4l_buffers.buffer[frame].state], |
| zr->v4l_pend_tail, zr->v4l_pend_head); |
| /* Process is the one capturing? */ |
| if (fh->v4l_buffers.active != ZORAN_FREE && |
| /* Buffer ready to DQBUF? */ |
| zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) |
| res = POLLIN | POLLRDNORM; |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| break; |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| poll_wait(file, &zr->jpg_capq, wait); |
| frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| dprintk(3, |
| KERN_DEBUG |
| "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n", |
| ZR_DEVNAME(zr), __func__, |
| "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail, |
| "UPMD"[zr->jpg_buffers.buffer[frame].state], |
| zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head); |
| if (fh->jpg_buffers.active != ZORAN_FREE && |
| zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { |
| if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) |
| res = POLLIN | POLLRDNORM; |
| else |
| res = POLLOUT | POLLWRNORM; |
| } |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| |
| break; |
| |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_poll() - internal error, unknown map_mode=%d\n", |
| ZR_DEVNAME(zr), fh->map_mode); |
| res = POLLNVAL; |
| } |
| |
| mutex_unlock(&zr->resource_lock); |
| |
| return res; |
| } |
| |
| |
| /* |
| * This maps the buffers to user space. |
| * |
| * Depending on the state of fh->map_mode |
| * the V4L or the MJPEG buffers are mapped |
| * per buffer or all together |
| * |
| * Note that we need to connect to some |
| * unmap signal event to unmap the de-allocate |
| * the buffer accordingly (zoran_vm_close()) |
| */ |
| |
| static void |
| zoran_vm_open (struct vm_area_struct *vma) |
| { |
| struct zoran_mapping *map = vma->vm_private_data; |
| |
| map->count++; |
| } |
| |
| static void |
| zoran_vm_close (struct vm_area_struct *vma) |
| { |
| struct zoran_mapping *map = vma->vm_private_data; |
| struct file *file = map->file; |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| int i; |
| |
| map->count--; |
| if (map->count == 0) { |
| switch (fh->map_mode) { |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| |
| dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n", |
| ZR_DEVNAME(zr)); |
| |
| for (i = 0; i < fh->jpg_buffers.num_buffers; i++) { |
| if (fh->jpg_buffers.buffer[i].map == map) { |
| fh->jpg_buffers.buffer[i].map = |
| NULL; |
| } |
| } |
| kfree(map); |
| |
| for (i = 0; i < fh->jpg_buffers.num_buffers; i++) |
| if (fh->jpg_buffers.buffer[i].map) |
| break; |
| if (i == fh->jpg_buffers.num_buffers) { |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->jpg_buffers.active != ZORAN_FREE) { |
| jpg_qbuf(file, -1, zr->codec_mode); |
| zr->jpg_buffers.allocated = 0; |
| zr->jpg_buffers.active = |
| fh->jpg_buffers.active = |
| ZORAN_FREE; |
| } |
| //jpg_fbuffer_free(file); |
| fh->jpg_buffers.allocated = 0; |
| fh->jpg_buffers.ready_to_be_freed = 1; |
| |
| mutex_unlock(&zr->resource_lock); |
| } |
| |
| break; |
| |
| case ZORAN_MAP_MODE_RAW: |
| |
| dprintk(3, KERN_INFO "%s: munmap(V4L)\n", |
| ZR_DEVNAME(zr)); |
| |
| for (i = 0; i < fh->v4l_buffers.num_buffers; i++) { |
| if (fh->v4l_buffers.buffer[i].map == map) { |
| /* unqueue/unmap */ |
| fh->v4l_buffers.buffer[i].map = |
| NULL; |
| } |
| } |
| kfree(map); |
| |
| for (i = 0; i < fh->v4l_buffers.num_buffers; i++) |
| if (fh->v4l_buffers.buffer[i].map) |
| break; |
| if (i == fh->v4l_buffers.num_buffers) { |
| mutex_lock(&zr->resource_lock); |
| |
| if (fh->v4l_buffers.active != ZORAN_FREE) { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&zr->spinlock, flags); |
| zr36057_set_memgrab(zr, 0); |
| zr->v4l_buffers.allocated = 0; |
| zr->v4l_buffers.active = |
| fh->v4l_buffers.active = |
| ZORAN_FREE; |
| spin_unlock_irqrestore(&zr->spinlock, flags); |
| } |
| //v4l_fbuffer_free(file); |
| fh->v4l_buffers.allocated = 0; |
| fh->v4l_buffers.ready_to_be_freed = 1; |
| |
| mutex_unlock(&zr->resource_lock); |
| } |
| |
| break; |
| |
| default: |
| printk(KERN_ERR |
| "%s: munmap() - internal error - unknown map mode %d\n", |
| ZR_DEVNAME(zr), fh->map_mode); |
| break; |
| |
| } |
| } |
| } |
| |
| static struct vm_operations_struct zoran_vm_ops = { |
| .open = zoran_vm_open, |
| .close = zoran_vm_close, |
| }; |
| |
| static int |
| zoran_mmap (struct file *file, |
| struct vm_area_struct *vma) |
| { |
| struct zoran_fh *fh = file->private_data; |
| struct zoran *zr = fh->zr; |
| unsigned long size = (vma->vm_end - vma->vm_start); |
| unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; |
| int i, j; |
| unsigned long page, start = vma->vm_start, todo, pos, fraglen; |
| int first, last; |
| struct zoran_mapping *map; |
| int res = 0; |
| |
| dprintk(3, |
| KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n", |
| ZR_DEVNAME(zr), |
| fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG", |
| vma->vm_start, vma->vm_end, size); |
| |
| if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || |
| !(vma->vm_flags & VM_WRITE)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n", |
| ZR_DEVNAME(zr)); |
| return -EINVAL; |
| } |
| |
| switch (fh->map_mode) { |
| |
| case ZORAN_MAP_MODE_JPG_REC: |
| case ZORAN_MAP_MODE_JPG_PLAY: |
| |
| /* lock */ |
| mutex_lock(&zr->resource_lock); |
| |
| /* Map the MJPEG buffers */ |
| if (!fh->jpg_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -ENOMEM; |
| goto jpg_mmap_unlock_and_return; |
| } |
| |
| first = offset / fh->jpg_buffers.buffer_size; |
| last = first - 1 + size / fh->jpg_buffers.buffer_size; |
| if (offset % fh->jpg_buffers.buffer_size != 0 || |
| size % fh->jpg_buffers.buffer_size != 0 || first < 0 || |
| last < 0 || first >= fh->jpg_buffers.num_buffers || |
| last >= fh->jpg_buffers.num_buffers) { |
| dprintk(1, |
| KERN_ERR |
| "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", |
| ZR_DEVNAME(zr), offset, size, |
| fh->jpg_buffers.buffer_size, |
| fh->jpg_buffers.num_buffers); |
| res = -EINVAL; |
| goto jpg_mmap_unlock_and_return; |
| } |
| for (i = first; i <= last; i++) { |
| if (fh->jpg_buffers.buffer[i].map) { |
| dprintk(1, |
| KERN_ERR |
| "%s: mmap(MJPEG) - buffer %d already mapped\n", |
| ZR_DEVNAME(zr), i); |
| res = -EBUSY; |
| goto jpg_mmap_unlock_and_return; |
| } |
| } |
| |
| /* map these buffers (v4l_buffers[i]) */ |
| map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); |
| if (!map) { |
| res = -ENOMEM; |
| goto jpg_mmap_unlock_and_return; |
| } |
| map->file = file; |
| map->count = 1; |
| |
| vma->vm_ops = &zoran_vm_ops; |
| vma->vm_flags |= VM_DONTEXPAND; |
| vma->vm_private_data = map; |
| |
| for (i = first; i <= last; i++) { |
| for (j = 0; |
| j < fh->jpg_buffers.buffer_size / PAGE_SIZE; |
| j++) { |
| fraglen = |
| (le32_to_cpu(fh->jpg_buffers.buffer[i]. |
| frag_tab[2 * j + 1]) & ~1) << 1; |
| todo = size; |
| if (todo > fraglen) |
| todo = fraglen; |
| pos = |
| le32_to_cpu(fh->jpg_buffers. |
| buffer[i].frag_tab[2 * j]); |
| /* should just be pos on i386 */ |
| page = virt_to_phys(bus_to_virt(pos)) |
| >> PAGE_SHIFT; |
| if (remap_pfn_range(vma, start, page, |
| todo, PAGE_SHARED)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_mmap(V4L) - remap_pfn_range failed\n", |
| ZR_DEVNAME(zr)); |
| res = -EAGAIN; |
| goto jpg_mmap_unlock_and_return; |
| } |
| size -= todo; |
| start += todo; |
| if (size == 0) |
| break; |
| if (le32_to_cpu(fh->jpg_buffers.buffer[i]. |
| frag_tab[2 * j + 1]) & 1) |
| break; /* was last fragment */ |
| } |
| fh->jpg_buffers.buffer[i].map = map; |
| if (size == 0) |
| break; |
| |
| } |
| jpg_mmap_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| break; |
| |
| case ZORAN_MAP_MODE_RAW: |
| |
| mutex_lock(&zr->resource_lock); |
| |
| /* Map the V4L buffers */ |
| if (!fh->v4l_buffers.allocated) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_mmap(V4L) - buffers not yet allocated\n", |
| ZR_DEVNAME(zr)); |
| res = -ENOMEM; |
| goto v4l_mmap_unlock_and_return; |
| } |
| |
| first = offset / fh->v4l_buffers.buffer_size; |
| last = first - 1 + size / fh->v4l_buffers.buffer_size; |
| if (offset % fh->v4l_buffers.buffer_size != 0 || |
| size % fh->v4l_buffers.buffer_size != 0 || first < 0 || |
| last < 0 || first >= fh->v4l_buffers.num_buffers || |
| last >= fh->v4l_buffers.buffer_size) { |
| dprintk(1, |
| KERN_ERR |
| "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", |
| ZR_DEVNAME(zr), offset, size, |
| fh->v4l_buffers.buffer_size, |
| fh->v4l_buffers.num_buffers); |
| res = -EINVAL; |
| goto v4l_mmap_unlock_and_return; |
| } |
| for (i = first; i <= last; i++) { |
| if (fh->v4l_buffers.buffer[i].map) { |
| dprintk(1, |
| KERN_ERR |
| "%s: mmap(V4L) - buffer %d already mapped\n", |
| ZR_DEVNAME(zr), i); |
| res = -EBUSY; |
| goto v4l_mmap_unlock_and_return; |
| } |
| } |
| |
| /* map these buffers (v4l_buffers[i]) */ |
| map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); |
| if (!map) { |
| res = -ENOMEM; |
| goto v4l_mmap_unlock_and_return; |
| } |
| map->file = file; |
| map->count = 1; |
| |
| vma->vm_ops = &zoran_vm_ops; |
| vma->vm_flags |= VM_DONTEXPAND; |
| vma->vm_private_data = map; |
| |
| for (i = first; i <= last; i++) { |
| todo = size; |
| if (todo > fh->v4l_buffers.buffer_size) |
| todo = fh->v4l_buffers.buffer_size; |
| page = fh->v4l_buffers.buffer[i].fbuffer_phys; |
| if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, |
| todo, PAGE_SHARED)) { |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n", |
| ZR_DEVNAME(zr)); |
| res = -EAGAIN; |
| goto v4l_mmap_unlock_and_return; |
| } |
| size -= todo; |
| start += todo; |
| fh->v4l_buffers.buffer[i].map = map; |
| if (size == 0) |
| break; |
| } |
| v4l_mmap_unlock_and_return: |
| mutex_unlock(&zr->resource_lock); |
| |
| break; |
| |
| default: |
| dprintk(1, |
| KERN_ERR |
| "%s: zoran_mmap() - internal error - unknown map mode %d\n", |
| ZR_DEVNAME(zr), fh->map_mode); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static const struct file_operations zoran_fops = { |
| .owner = THIS_MODULE, |
| .open = zoran_open, |
| .release = zoran_close, |
| .ioctl = zoran_ioctl, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = v4l_compat_ioctl32, |
| #endif |
| .llseek = no_llseek, |
| .read = zoran_read, |
| .write = zoran_write, |
| .mmap = zoran_mmap, |
| .poll = zoran_poll, |
| }; |
| |
| struct video_device zoran_template __devinitdata = { |
| .name = ZORAN_NAME, |
| .fops = &zoran_fops, |
| .release = &zoran_vdev_release, |
| .minor = -1 |
| }; |
| |
