/* * Zoran zr36057/zr36067 PCI controller driver, for the * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux * Media Labs LML33/LML33R10. * * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> * * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> * * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> * * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> * * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> * * Based on * * Miro DC10 driver * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> * * Iomega Buz driver version 1.0 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> * * buz.0.0.3 * Copyright (C) 1998 Dave Perks <dperks@ibm.net> * * bttv - Bt848 frame grabber driver * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) * & Marcus Metzler (mocm@thp.uni-koeln.de) * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> #include <linux/module.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/pci.h> #include <linux/vmalloc.h> #include <linux/wait.h> #include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/i2c-algo-bit.h> #include <linux/spinlock.h> #include <linux/videodev2.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include "videocodec.h" #include <asm/byteorder.h> #include <asm/io.h> #include <asm/uaccess.h> #include <linux/proc_fs.h> #include <linux/mutex.h> #include "zoran.h" #include "zoran_device.h" #include "zoran_card.h" const struct zoran_format zoran_formats[] = { { .name = "15-bit RGB LE", .fourcc = V4L2_PIX_FMT_RGB555, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 15, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif| ZR36057_VFESPFR_LittleEndian, }, { .name = "15-bit RGB BE", .fourcc = V4L2_PIX_FMT_RGB555X, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 15, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, }, { .name = "16-bit RGB LE", .fourcc = V4L2_PIX_FMT_RGB565, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif| ZR36057_VFESPFR_LittleEndian, }, { .name = "16-bit RGB BE", .fourcc = V4L2_PIX_FMT_RGB565X, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, }, { .name = "24-bit RGB", .fourcc = V4L2_PIX_FMT_BGR24, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 24, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, }, { .name = "32-bit RGB LE", .fourcc = V4L2_PIX_FMT_BGR32, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 32, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, }, { .name = "32-bit RGB BE", .fourcc = V4L2_PIX_FMT_RGB32, .colorspace = V4L2_COLORSPACE_SRGB, .depth = 32, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_RGB888, }, { .name = "4:2:2, packed, YUYV", .fourcc = V4L2_PIX_FMT_YUYV, .colorspace = V4L2_COLORSPACE_SMPTE170M, .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_YUV422, }, { .name = "4:2:2, packed, UYVY", .fourcc = V4L2_PIX_FMT_UYVY, .colorspace = V4L2_COLORSPACE_SMPTE170M, .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, }, { .name = "Hardware-encoded Motion-JPEG", .fourcc = V4L2_PIX_FMT_MJPEG, .colorspace = V4L2_COLORSPACE_SMPTE170M, .depth = 0, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_PLAYBACK | ZORAN_FORMAT_COMPRESSED, } }; #define NUM_FORMATS ARRAY_SIZE(zoran_formats) /* small helper function for calculating buffersizes for v4l2 * we calculate the nearest higher power-of-two, which * will be the recommended buffersize */ static __u32 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) { __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; __u32 num = (1024 * 512) / (div); __u32 result = 2; num--; while (num) { num >>= 1; result <<= 1; } if (result > jpg_bufsize) return jpg_bufsize; if (result < 8192) return 8192; return result; } /* forward references */ static void v4l_fbuffer_free(struct zoran_fh *fh); static void jpg_fbuffer_free(struct zoran_fh *fh); /* Set mapping mode */ static void map_mode_raw(struct zoran_fh *fh) { fh->map_mode = ZORAN_MAP_MODE_RAW; fh->buffers.buffer_size = v4l_bufsize; fh->buffers.num_buffers = v4l_nbufs; } static void map_mode_jpg(struct zoran_fh *fh, int play) { fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC; fh->buffers.buffer_size = jpg_bufsize; fh->buffers.num_buffers = jpg_nbufs; } static inline const char *mode_name(enum zoran_map_mode mode) { return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG"; } /* * Allocate the V4L grab buffers * * These have to be pysically contiguous. */ static int v4l_fbuffer_alloc(struct zoran_fh *fh) { struct zoran *zr = fh->zr; int i, off; unsigned char *mem; for (i = 0; i < fh->buffers.num_buffers; i++) { if (fh->buffers.buffer[i].v4l.fbuffer) dprintk(2, KERN_WARNING "%s: %s - buffer %d already allocated!?\n", ZR_DEVNAME(zr), __func__, i); //udelay(20); mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL | __GFP_NOWARN); if (!mem) { dprintk(1, KERN_ERR "%s: %s - kmalloc for V4L buf %d failed\n", ZR_DEVNAME(zr), __func__, i); v4l_fbuffer_free(fh); return -ENOBUFS; } fh->buffers.buffer[i].v4l.fbuffer = mem; fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem); fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem); for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) SetPageReserved(virt_to_page(mem + off)); dprintk(4, KERN_INFO "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n", ZR_DEVNAME(zr), __func__, i, (unsigned long) mem, (unsigned long long)virt_to_bus(mem)); } fh->buffers.allocated = 1; return 0; } /* free the V4L grab buffers */ static void v4l_fbuffer_free(struct zoran_fh *fh) { struct zoran *zr = fh->zr; int i, off; unsigned char *mem; dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__); for (i = 0; i < fh->buffers.num_buffers; i++) { if (!fh->buffers.buffer[i].v4l.fbuffer) continue; mem = fh->buffers.buffer[i].v4l.fbuffer; for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) ClearPageReserved(virt_to_page(mem + off)); kfree(fh->buffers.buffer[i].v4l.fbuffer); fh->buffers.buffer[i].v4l.fbuffer = NULL; } fh->buffers.allocated = 0; } /* * Allocate the MJPEG grab buffers. * * If a Natoma chipset is present and this is a revision 1 zr36057, * each MJPEG buffer needs to be physically contiguous. * (RJ: This statement is from Dave Perks' original driver, * I could never check it because I have a zr36067) * * RJ: The contents grab buffers needs never be accessed in the driver. * Therefore there is no need to allocate them with vmalloc in order * to get a contiguous virtual memory space. * I don't understand why many other drivers first allocate them with * vmalloc (which uses internally also get_zeroed_page, but delivers you * virtual addresses) and then again have to make a lot of efforts * to get the physical address. * * Ben Capper: * On big-endian architectures (such as ppc) some extra steps * are needed. When reading and writing to the stat_com array * and fragment buffers, the device expects to see little- * endian values. The use of cpu_to_le32() and le32_to_cpu() * in this function (and one or two others in zoran_device.c) * ensure that these values are always stored in little-endian * form, regardless of architecture. The zr36057 does Very Bad * Things on big endian architectures if the stat_com array * and fragment buffers are not little-endian. */ static int jpg_fbuffer_alloc(struct zoran_fh *fh) { struct zoran *zr = fh->zr; int i, j, off; u8 *mem; for (i = 0; i < fh->buffers.num_buffers; i++) { if (fh->buffers.buffer[i].jpg.frag_tab) dprintk(2, KERN_WARNING "%s: %s - buffer %d already allocated!?\n", ZR_DEVNAME(zr), __func__, i); /* Allocate fragment table for this buffer */ mem = (void *)get_zeroed_page(GFP_KERNEL); if (!mem) { dprintk(1, KERN_ERR "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n", ZR_DEVNAME(zr), __func__, i); jpg_fbuffer_free(fh); return -ENOBUFS; } fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem; fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem); if (fh->buffers.need_contiguous) { mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL); if (mem == NULL) { dprintk(1, KERN_ERR "%s: %s - kmalloc failed for buffer %d\n", ZR_DEVNAME(zr), __func__, i); jpg_fbuffer_free(fh); return -ENOBUFS; } fh->buffers.buffer[i].jpg.frag_tab[0] = cpu_to_le32(virt_to_bus(mem)); fh->buffers.buffer[i].jpg.frag_tab[1] = cpu_to_le32((fh->buffers.buffer_size >> 1) | 1); for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) SetPageReserved(virt_to_page(mem + off)); } else { /* jpg_bufsize is already page aligned */ for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { mem = (void *)get_zeroed_page(GFP_KERNEL); if (mem == NULL) { dprintk(1, KERN_ERR "%s: %s - get_zeroed_page failed for buffer %d\n", ZR_DEVNAME(zr), __func__, i); jpg_fbuffer_free(fh); return -ENOBUFS; } fh->buffers.buffer[i].jpg.frag_tab[2 * j] = cpu_to_le32(virt_to_bus(mem)); fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] = cpu_to_le32((PAGE_SIZE >> 2) << 1); SetPageReserved(virt_to_page(mem)); } fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1); } } dprintk(4, KERN_DEBUG "%s: %s - %d KB allocated\n", ZR_DEVNAME(zr), __func__, (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10); fh->buffers.allocated = 1; return 0; } /* free the MJPEG grab buffers */ static void jpg_fbuffer_free(struct zoran_fh *fh) { struct zoran *zr = fh->zr; int i, j, off; unsigned char *mem; __le32 frag_tab; struct zoran_buffer *buffer; dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__); for (i = 0, buffer = &fh->buffers.buffer[0]; i < fh->buffers.num_buffers; i++, buffer++) { if (!buffer->jpg.frag_tab) continue; if (fh->buffers.need_contiguous) { frag_tab = buffer->jpg.frag_tab[0]; if (frag_tab) { mem = bus_to_virt(le32_to_cpu(frag_tab)); for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) ClearPageReserved(virt_to_page(mem + off)); kfree(mem); buffer->jpg.frag_tab[0] = 0; buffer->jpg.frag_tab[1] = 0; } } else { for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { frag_tab = buffer->jpg.frag_tab[2 * j]; if (!frag_tab) break; ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab)))); free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab))); buffer->jpg.frag_tab[2 * j] = 0; buffer->jpg.frag_tab[2 * j + 1] = 0; } } free_page((unsigned long)buffer->jpg.frag_tab); buffer->jpg.frag_tab = NULL; } fh->buffers.allocated = 0; } /* * V4L Buffer grabbing */ static int zoran_v4l_set_format (struct zoran_fh *fh, int width, int height, const struct zoran_format *format) { struct zoran *zr = fh->zr; int bpp; /* Check size and format of the grab wanted */ if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { dprintk(1, KERN_ERR "%s: %s - wrong frame size (%dx%d)\n", ZR_DEVNAME(zr), __func__, width, height); return -EINVAL; } bpp = (format->depth + 7) / 8; /* Check against available buffer size */ if (height * width * bpp > fh->buffers.buffer_size) { dprintk(1, KERN_ERR "%s: %s - video buffer size (%d kB) is too small\n", ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10); return -EINVAL; } /* The video front end needs 4-byte alinged line sizes */ if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { dprintk(1, KERN_ERR "%s: %s - wrong frame alignment\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } fh->v4l_settings.width = width; fh->v4l_settings.height = height; fh->v4l_settings.format = format; fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; return 0; } static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num) { struct zoran *zr = fh->zr; unsigned long flags; int res = 0; if (!fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: %s - buffers not yet allocated\n", ZR_DEVNAME(zr), __func__); res = -ENOMEM; } /* No grabbing outside the buffer range! */ if (num >= fh->buffers.num_buffers || num < 0) { dprintk(1, KERN_ERR "%s: %s - buffer %d is out of range\n", ZR_DEVNAME(zr), __func__, num); res = -EINVAL; } spin_lock_irqsave(&zr->spinlock, flags); if (fh->buffers.active == ZORAN_FREE) { if (zr->v4l_buffers.active == ZORAN_FREE) { zr->v4l_buffers = fh->buffers; fh->buffers.active = ZORAN_ACTIVE; } else { dprintk(1, KERN_ERR "%s: %s - another session is already capturing\n", ZR_DEVNAME(zr), __func__); res = -EBUSY; } } /* make sure a grab isn't going on currently with this buffer */ if (!res) { switch (zr->v4l_buffers.buffer[num].state) { default: case BUZ_STATE_PEND: if (zr->v4l_buffers.active == ZORAN_FREE) { fh->buffers.active = ZORAN_FREE; zr->v4l_buffers.allocated = 0; } res = -EBUSY; /* what are you doing? */ break; case BUZ_STATE_DONE: dprintk(2, KERN_WARNING "%s: %s - queueing buffer %d in state DONE!?\n", ZR_DEVNAME(zr), __func__, num); case BUZ_STATE_USER: /* since there is at least one unused buffer there's room for at least * one more pend[] entry */ zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num; zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; zr->v4l_buffers.buffer[num].bs.length = fh->v4l_settings.bytesperline * zr->v4l_settings.height; fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num]; break; } } spin_unlock_irqrestore(&zr->spinlock, flags); if (!res && zr->v4l_buffers.active == ZORAN_FREE) zr->v4l_buffers.active = fh->buffers.active; return res; } /* * Sync on a V4L buffer */ static int v4l_sync(struct zoran_fh *fh, int frame) { struct zoran *zr = fh->zr; unsigned long flags; if (fh->buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: %s - no grab active for this session\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } /* check passed-in frame number */ if (frame >= fh->buffers.num_buffers || frame < 0) { dprintk(1, KERN_ERR "%s: %s - frame %d is invalid\n", ZR_DEVNAME(zr), __func__, frame); return -EINVAL; } /* Check if is buffer was queued at all */ if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { dprintk(1, KERN_ERR "%s: %s - attempt to sync on a buffer which was not queued?\n", ZR_DEVNAME(zr), __func__); return -EPROTO; } /* wait on this buffer to get ready */ if (!wait_event_interruptible_timeout(zr->v4l_capq, (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) return -ETIME; if (signal_pending(current)) return -ERESTARTSYS; /* buffer should now be in BUZ_STATE_DONE */ if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) dprintk(2, KERN_ERR "%s: %s - internal state error\n", ZR_DEVNAME(zr), __func__); zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; spin_lock_irqsave(&zr->spinlock, flags); /* Check if streaming capture has finished */ if (zr->v4l_pend_tail == zr->v4l_pend_head) { zr36057_set_memgrab(zr, 0); if (zr->v4l_buffers.active == ZORAN_ACTIVE) { fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE; zr->v4l_buffers.allocated = 0; } } spin_unlock_irqrestore(&zr->spinlock, flags); return 0; } /* * Queue a MJPEG buffer for capture/playback */ static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num, enum zoran_codec_mode mode) { struct zoran *zr = fh->zr; unsigned long flags; int res = 0; /* Check if buffers are allocated */ if (!fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: %s - buffers not yet allocated\n", ZR_DEVNAME(zr), __func__); return -ENOMEM; } /* No grabbing outside the buffer range! */ if (num >= fh->buffers.num_buffers || num < 0) { dprintk(1, KERN_ERR "%s: %s - buffer %d out of range\n", ZR_DEVNAME(zr), __func__, num); return -EINVAL; } /* what is the codec mode right now? */ if (zr->codec_mode == BUZ_MODE_IDLE) { zr->jpg_settings = fh->jpg_settings; } else if (zr->codec_mode != mode) { /* wrong codec mode active - invalid */ dprintk(1, KERN_ERR "%s: %s - codec in wrong mode\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (fh->buffers.active == ZORAN_FREE) { if (zr->jpg_buffers.active == ZORAN_FREE) { zr->jpg_buffers = fh->buffers; fh->buffers.active = ZORAN_ACTIVE; } else { dprintk(1, KERN_ERR "%s: %s - another session is already capturing\n", ZR_DEVNAME(zr), __func__); res = -EBUSY; } } if (!res && zr->codec_mode == BUZ_MODE_IDLE) { /* Ok load up the jpeg codec */ zr36057_enable_jpg(zr, mode); } spin_lock_irqsave(&zr->spinlock, flags); if (!res) { switch (zr->jpg_buffers.buffer[num].state) { case BUZ_STATE_DONE: dprintk(2, KERN_WARNING "%s: %s - queing frame in BUZ_STATE_DONE state!?\n", ZR_DEVNAME(zr), __func__); case BUZ_STATE_USER: /* since there is at least one unused buffer there's room for at *least one more pend[] entry */ zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num; zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num]; zoran_feed_stat_com(zr); break; default: case BUZ_STATE_DMA: case BUZ_STATE_PEND: if (zr->jpg_buffers.active == ZORAN_FREE) { fh->buffers.active = ZORAN_FREE; zr->jpg_buffers.allocated = 0; } res = -EBUSY; /* what are you doing? */ break; } } spin_unlock_irqrestore(&zr->spinlock, flags); if (!res && zr->jpg_buffers.active == ZORAN_FREE) zr->jpg_buffers.active = fh->buffers.active; return res; } static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode) { struct zoran *zr = fh->zr; int res = 0; /* Does the user want to stop streaming? */ if (frame < 0) { if (zr->codec_mode == mode) { if (fh->buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: %s(-1) - session not active\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE; zr->jpg_buffers.allocated = 0; zr36057_enable_jpg(zr, BUZ_MODE_IDLE); return 0; } else { dprintk(1, KERN_ERR "%s: %s - stop streaming but not in streaming mode\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } } if ((res = zoran_jpg_queue_frame(fh, frame, mode))) return res; /* Start the jpeg codec when the first frame is queued */ if (!res && zr->jpg_que_head == 1) jpeg_start(zr); return res; } /* * Sync on a MJPEG buffer */ static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs) { struct zoran *zr = fh->zr; unsigned long flags; int frame; if (fh->buffers.active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: %s - capture is not currently active\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { dprintk(1, KERN_ERR "%s: %s - codec not in streaming mode\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (!wait_event_interruptible_timeout(zr->jpg_capq, (zr->jpg_que_tail != zr->jpg_dma_tail || zr->jpg_dma_tail == zr->jpg_dma_head), 10*HZ)) { int isr; btand(~ZR36057_JMC_Go_en, ZR36057_JMC); udelay(1); zr->codec->control(zr->codec, CODEC_G_STATUS, sizeof(isr), &isr); dprintk(1, KERN_ERR "%s: %s - timeout: codec isr=0x%02x\n", ZR_DEVNAME(zr), __func__, isr); return -ETIME; } if (signal_pending(current)) return -ERESTARTSYS; spin_lock_irqsave(&zr->spinlock, flags); if (zr->jpg_dma_tail != zr->jpg_dma_head) frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; else frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; /* buffer should now be in BUZ_STATE_DONE */ if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) dprintk(2, KERN_ERR "%s: %s - internal state error\n", ZR_DEVNAME(zr), __func__); *bs = zr->jpg_buffers.buffer[frame].bs; bs->frame = frame; zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; spin_unlock_irqrestore(&zr->spinlock, flags); return 0; } static void zoran_open_init_session(struct zoran_fh *fh) { int i; struct zoran *zr = fh->zr; /* Per default, map the V4L Buffers */ map_mode_raw(fh); /* take over the card's current settings */ fh->overlay_settings = zr->overlay_settings; fh->overlay_settings.is_set = 0; fh->overlay_settings.format = zr->overlay_settings.format; fh->overlay_active = ZORAN_FREE; /* v4l settings */ fh->v4l_settings = zr->v4l_settings; /* jpg settings */ fh->jpg_settings = zr->jpg_settings; /* buffers */ memset(&fh->buffers, 0, sizeof(fh->buffers)); for (i = 0; i < MAX_FRAME; i++) { fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ fh->buffers.buffer[i].bs.frame = i; } fh->buffers.allocated = 0; fh->buffers.active = ZORAN_FREE; } static void zoran_close_end_session(struct zoran_fh *fh) { struct zoran *zr = fh->zr; /* overlay */ if (fh->overlay_active != ZORAN_FREE) { fh->overlay_active = zr->overlay_active = ZORAN_FREE; zr->v4l_overlay_active = 0; if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 0); zr->overlay_mask = NULL; } if (fh->map_mode == ZORAN_MAP_MODE_RAW) { /* v4l capture */ if (fh->buffers.active != ZORAN_FREE) { unsigned long flags; spin_lock_irqsave(&zr->spinlock, flags); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; spin_unlock_irqrestore(&zr->spinlock, flags); } /* v4l buffers */ if (fh->buffers.allocated) v4l_fbuffer_free(fh); } else { /* jpg capture */ if (fh->buffers.active != ZORAN_FREE) { zr36057_enable_jpg(zr, BUZ_MODE_IDLE); zr->jpg_buffers.allocated = 0; zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; } /* jpg buffers */ if (fh->buffers.allocated) jpg_fbuffer_free(fh); } } /* * Open a zoran card. Right now the flags stuff is just playing */ static int zoran_open(struct file *file) { struct zoran *zr = video_drvdata(file); struct zoran_fh *fh; int res, first_open = 0; dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n", ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1); mutex_lock(&zr->other_lock); if (zr->user >= 2048) { dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", ZR_DEVNAME(zr), zr->user); res = -EBUSY; goto fail_unlock; } /* now, create the open()-specific file_ops struct */ fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); if (!fh) { dprintk(1, KERN_ERR "%s: %s - allocation of zoran_fh failed\n", ZR_DEVNAME(zr), __func__); res = -ENOMEM; goto fail_unlock; } /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows * on norm-change! */ fh->overlay_mask = kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); if (!fh->overlay_mask) { dprintk(1, KERN_ERR "%s: %s - allocation of overlay_mask failed\n", ZR_DEVNAME(zr), __func__); res = -ENOMEM; goto fail_fh; } if (zr->user++ == 0) first_open = 1; /*mutex_unlock(&zr->resource_lock);*/ /* default setup - TODO: look at flags */ if (first_open) { /* First device open */ zr36057_restart(zr); zoran_open_init_params(zr); zoran_init_hardware(zr); btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); } /* set file_ops stuff */ file->private_data = fh; fh->zr = zr; zoran_open_init_session(fh); mutex_unlock(&zr->other_lock); return 0; fail_fh: kfree(fh); fail_unlock: mutex_unlock(&zr->other_lock); dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n", ZR_DEVNAME(zr), res, zr->user); return res; } static int zoran_close(struct file *file) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n", ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1); /* kernel locks (fs/device.c), so don't do that ourselves * (prevents deadlocks) */ mutex_lock(&zr->other_lock); zoran_close_end_session(fh); if (zr->user-- == 1) { /* Last process */ /* Clean up JPEG process */ wake_up_interruptible(&zr->jpg_capq); zr36057_enable_jpg(zr, BUZ_MODE_IDLE); zr->jpg_buffers.allocated = 0; zr->jpg_buffers.active = ZORAN_FREE; /* disable interrupts */ btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); if (zr36067_debug > 1) print_interrupts(zr); /* Overlay off */ zr->v4l_overlay_active = 0; zr36057_overlay(zr, 0); zr->overlay_mask = NULL; /* capture off */ wake_up_interruptible(&zr->v4l_capq); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = ZORAN_FREE; zoran_set_pci_master(zr, 0); if (!pass_through) { /* Switch to color bar */ decoder_call(zr, video, s_stream, 0); encoder_call(zr, video, s_routing, 2, 0, 0); } } mutex_unlock(&zr->other_lock); file->private_data = NULL; kfree(fh->overlay_mask); kfree(fh); dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__); return 0; } static ssize_t zoran_read (struct file *file, char __user *data, size_t count, loff_t *ppos) { /* we simply don't support read() (yet)... */ return -EINVAL; } static ssize_t zoran_write (struct file *file, const char __user *data, size_t count, loff_t *ppos) { /* ...and the same goes for write() */ return -EINVAL; } static int setup_fbuffer(struct zoran_fh *fh, void *base, const struct zoran_format *fmt, int width, int height, int bytesperline) { struct zoran *zr = fh->zr; /* (Ronald) v4l/v4l2 guidelines */ if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) return -EPERM; /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on ALi Magik (that needs very low latency while the card needs a higher value always) */ if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) return -ENXIO; /* we need a bytesperline value, even if not given */ if (!bytesperline) bytesperline = width * ((fmt->depth + 7) & ~7) / 8; #if 0 if (zr->overlay_active) { /* dzjee... stupid users... don't even bother to turn off * overlay before changing the memory location... * normally, we would return errors here. However, one of * the tools that does this is... xawtv! and since xawtv * is used by +/- 99% of the users, we'd rather be user- * friendly and silently do as if nothing went wrong */ dprintk(3, KERN_ERR "%s: %s - forced overlay turnoff because framebuffer changed\n", ZR_DEVNAME(zr), __func__); zr36057_overlay(zr, 0); } #endif if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { dprintk(1, KERN_ERR "%s: %s - no valid overlay format given\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (height <= 0 || width <= 0 || bytesperline <= 0) { dprintk(1, KERN_ERR "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n", ZR_DEVNAME(zr), __func__, width, height, bytesperline); return -EINVAL; } if (bytesperline & 3) { dprintk(1, KERN_ERR "%s: %s - bytesperline (%d) must be 4-byte aligned\n", ZR_DEVNAME(zr), __func__, bytesperline); return -EINVAL; } zr->vbuf_base = (void *) ((unsigned long) base & ~3); zr->vbuf_height = height; zr->vbuf_width = width; zr->vbuf_depth = fmt->depth; zr->overlay_settings.format = fmt; zr->vbuf_bytesperline = bytesperline; /* The user should set new window parameters */ zr->overlay_settings.is_set = 0; return 0; } static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height, struct v4l2_clip __user *clips, int clipcount, void __user *bitmap) { struct zoran *zr = fh->zr; struct v4l2_clip *vcp = NULL; int on, end; if (!zr->vbuf_base) { dprintk(1, KERN_ERR "%s: %s - frame buffer has to be set first\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (!fh->overlay_settings.format) { dprintk(1, KERN_ERR "%s: %s - no overlay format set\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } /* * The video front end needs 4-byte alinged line sizes, we correct that * silently here if necessary */ if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) { end = (x + width) & ~1; /* round down */ x = (x + 1) & ~1; /* round up */ width = end - x; } if (zr->vbuf_depth == 24) { end = (x + width) & ~3; /* round down */ x = (x + 3) & ~3; /* round up */ width = end - x; } if (width > BUZ_MAX_WIDTH) width = BUZ_MAX_WIDTH; if (height > BUZ_MAX_HEIGHT) height = BUZ_MAX_HEIGHT; /* Check for invalid parameters */ if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { dprintk(1, KERN_ERR "%s: %s - width = %d or height = %d invalid\n", ZR_DEVNAME(zr), __func__, width, height); return -EINVAL; } fh->overlay_settings.x = x; fh->overlay_settings.y = y; fh->overlay_settings.width = width; fh->overlay_settings.height = height; fh->overlay_settings.clipcount = clipcount; /* * If an overlay is running, we have to switch it off * and switch it on again in order to get the new settings in effect. * * We also want to avoid that the overlay mask is written * when an overlay is running. */ on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && zr->overlay_active != ZORAN_FREE && fh->overlay_active != ZORAN_FREE; if (on) zr36057_overlay(zr, 0); /* * Write the overlay mask if clips are wanted. * We prefer a bitmap. */ if (bitmap) { /* fake value - it just means we want clips */ fh->overlay_settings.clipcount = 1; if (copy_from_user(fh->overlay_mask, bitmap, (width * height + 7) / 8)) { return -EFAULT; } } else if (clipcount > 0) { /* write our own bitmap from the clips */ vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4)); if (vcp == NULL) { dprintk(1, KERN_ERR "%s: %s - Alloc of clip mask failed\n", ZR_DEVNAME(zr), __func__); return -ENOMEM; } if (copy_from_user (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) { vfree(vcp); return -EFAULT; } write_overlay_mask(fh, vcp, clipcount); vfree(vcp); } fh->overlay_settings.is_set = 1; if (fh->overlay_active != ZORAN_FREE && zr->overlay_active != ZORAN_FREE) zr->overlay_settings = fh->overlay_settings; if (on) zr36057_overlay(zr, 1); /* Make sure the changes come into effect */ return wait_grab_pending(zr); } static int setup_overlay(struct zoran_fh *fh, int on) { struct zoran *zr = fh->zr; /* If there is nothing to do, return immediately */ if ((on && fh->overlay_active != ZORAN_FREE) || (!on && fh->overlay_active == ZORAN_FREE)) return 0; /* check whether we're touching someone else's overlay */ if (on && zr->overlay_active != ZORAN_FREE && fh->overlay_active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: %s - overlay is already active for another session\n", ZR_DEVNAME(zr), __func__); return -EBUSY; } if (!on && zr->overlay_active != ZORAN_FREE && fh->overlay_active == ZORAN_FREE) { dprintk(1, KERN_ERR "%s: %s - you cannot cancel someone else's session\n", ZR_DEVNAME(zr), __func__); return -EPERM; } if (on == 0) { zr->overlay_active = fh->overlay_active = ZORAN_FREE; zr->v4l_overlay_active = 0; /* When a grab is running, the video simply * won't be switched on any more */ if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 0); zr->overlay_mask = NULL; } else { if (!zr->vbuf_base || !fh->overlay_settings.is_set) { dprintk(1, KERN_ERR "%s: %s - buffer or window not set\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } if (!fh->overlay_settings.format) { dprintk(1, KERN_ERR "%s: %s - no overlay format set\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; zr->v4l_overlay_active = 1; zr->overlay_mask = fh->overlay_mask; zr->overlay_settings = fh->overlay_settings; if (!zr->v4l_memgrab_active) zr36057_overlay(zr, 1); /* When a grab is running, the video will be * switched on when grab is finished */ } /* Make sure the changes come into effect */ return wait_grab_pending(zr); } /* get the status of a buffer in the clients buffer queue */ static int zoran_v4l2_buffer_status(struct zoran_fh *fh, struct v4l2_buffer *buf, int num) { struct zoran *zr = fh->zr; unsigned long flags; buf->flags = V4L2_BUF_FLAG_MAPPED; switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: /* check range */ if (num < 0 || num >= fh->buffers.num_buffers || !fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: %s - wrong number or buffers not allocated\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } spin_lock_irqsave(&zr->spinlock, flags); dprintk(3, KERN_DEBUG "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n", ZR_DEVNAME(zr), __func__, "FAL"[fh->buffers.active], num, "UPMD"[zr->v4l_buffers.buffer[num].state], fh->buffers.buffer[num].map ? 'Y' : 'N'); spin_unlock_irqrestore(&zr->spinlock, flags); buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; buf->length = fh->buffers.buffer_size; /* get buffer */ buf->bytesused = fh->buffers.buffer[num].bs.length; if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || fh->buffers.buffer[num].state == BUZ_STATE_USER) { buf->sequence = fh->buffers.buffer[num].bs.seq; buf->flags |= V4L2_BUF_FLAG_DONE; buf->timestamp = fh->buffers.buffer[num].bs.timestamp; } else { buf->flags |= V4L2_BUF_FLAG_QUEUED; } if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) buf->field = V4L2_FIELD_TOP; else buf->field = V4L2_FIELD_INTERLACED; break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: /* check range */ if (num < 0 || num >= fh->buffers.num_buffers || !fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: %s - wrong number or buffers not allocated\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? V4L2_BUF_TYPE_VIDEO_CAPTURE : V4L2_BUF_TYPE_VIDEO_OUTPUT; buf->length = fh->buffers.buffer_size; /* these variables are only written after frame has been captured */ if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || fh->buffers.buffer[num].state == BUZ_STATE_USER) { buf->sequence = fh->buffers.buffer[num].bs.seq; buf->timestamp = fh->buffers.buffer[num].bs.timestamp; buf->bytesused = fh->buffers.buffer[num].bs.length; buf->flags |= V4L2_BUF_FLAG_DONE; } else { buf->flags |= V4L2_BUF_FLAG_QUEUED; } /* which fields are these? */ if (fh->jpg_settings.TmpDcm != 1) buf->field = fh->jpg_settings.odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; else buf->field = fh->jpg_settings.odd_even ? V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT; break; default: dprintk(5, KERN_ERR "%s: %s - invalid buffer type|map_mode (%d|%d)\n", ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode); return -EINVAL; } buf->memory = V4L2_MEMORY_MMAP; buf->index = num; buf->m.offset = buf->length * num; return 0; } static int zoran_set_norm (struct zoran *zr, v4l2_std_id norm) { int on; if (zr->v4l_buffers.active != ZORAN_FREE || zr->jpg_buffers.active != ZORAN_FREE) { dprintk(1, KERN_WARNING "%s: %s called while in playback/capture mode\n", ZR_DEVNAME(zr), __func__); return -EBUSY; } if (!(norm & zr->card.norms)) { dprintk(1, KERN_ERR "%s: %s - unsupported norm %llx\n", ZR_DEVNAME(zr), __func__, norm); return -EINVAL; } if (norm == V4L2_STD_ALL) { unsigned int status = 0; v4l2_std_id std = 0; decoder_call(zr, video, querystd, &std); decoder_call(zr, core, s_std, std); /* let changes come into effect */ ssleep(2); decoder_call(zr, video, g_input_status, &status); if (status & V4L2_IN_ST_NO_SIGNAL) { dprintk(1, KERN_ERR "%s: %s - no norm detected\n", ZR_DEVNAME(zr), __func__); /* reset norm */ decoder_call(zr, core, s_std, zr->norm); return -EIO; } norm = std; } if (norm & V4L2_STD_SECAM) zr->timing = zr->card.tvn[2]; else if (norm & V4L2_STD_NTSC) zr->timing = zr->card.tvn[1]; else zr->timing = zr->card.tvn[0]; /* We switch overlay off and on since a change in the * norm needs different VFE settings */ on = zr->overlay_active && !zr->v4l_memgrab_active; if (on) zr36057_overlay(zr, 0); decoder_call(zr, core, s_std, norm); encoder_call(zr, video, s_std_output, norm); if (on) zr36057_overlay(zr, 1); /* Make sure the changes come into effect */ zr->norm = norm; return 0; } static int zoran_set_input (struct zoran *zr, int input) { if (input == zr->input) { return 0; } if (zr->v4l_buffers.active != ZORAN_FREE || zr->jpg_buffers.active != ZORAN_FREE) { dprintk(1, KERN_WARNING "%s: %s called while in playback/capture mode\n", ZR_DEVNAME(zr), __func__); return -EBUSY; } if (input < 0 || input >= zr->card.inputs) { dprintk(1, KERN_ERR "%s: %s - unnsupported input %d\n", ZR_DEVNAME(zr), __func__, input); return -EINVAL; } zr->input = input; decoder_call(zr, video, s_routing, zr->card.input[input].muxsel, 0, 0); return 0; } /* * ioctl routine */ static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; memset(cap, 0, sizeof(*cap)); strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1); strncpy(cap->driver, "zoran", sizeof(cap->driver)-1); snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", pci_name(zr->pci_dev)); cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY; return 0; } static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag) { unsigned int num, i; for (num = i = 0; i < NUM_FORMATS; i++) { if (zoran_formats[i].flags & flag && num++ == fmt->index) { strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description) - 1); /* fmt struct pre-zeroed, so adding '\0' not needed */ fmt->pixelformat = zoran_formats[i].fourcc; if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; return 0; } } return -EINVAL; } static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_fmtdesc *f) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE); } static int zoran_enum_fmt_vid_out(struct file *file, void *__fh, struct v4l2_fmtdesc *f) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK); } static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_fmtdesc *f) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY); } static int zoran_g_fmt_vid_out(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; mutex_lock(&zr->resource_lock); fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm; fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 / (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm); fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings); fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG; if (fh->jpg_settings.TmpDcm == 1) fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); else fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); fmt->fmt.pix.bytesperline = 0; fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_g_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; if (fh->map_mode != ZORAN_MAP_MODE_RAW) return zoran_g_fmt_vid_out(file, fh, fmt); mutex_lock(&zr->resource_lock); fmt->fmt.pix.width = fh->v4l_settings.width; fmt->fmt.pix.height = fh->v4l_settings.height; fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline * fh->v4l_settings.height; fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc; fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace; fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; else fmt->fmt.pix.field = V4L2_FIELD_TOP; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; mutex_lock(&zr->resource_lock); fmt->fmt.win.w.left = fh->overlay_settings.x; fmt->fmt.win.w.top = fh->overlay_settings.y; fmt->fmt.win.w.width = fh->overlay_settings.width; fmt->fmt.win.w.height = fh->overlay_settings.height; if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT) fmt->fmt.win.field = V4L2_FIELD_INTERLACED; else fmt->fmt.win.field = V4L2_FIELD_TOP; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; mutex_lock(&zr->resource_lock); if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH) fmt->fmt.win.w.width = BUZ_MAX_WIDTH; if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH) fmt->fmt.win.w.width = BUZ_MIN_WIDTH; if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT) fmt->fmt.win.w.height = BUZ_MAX_HEIGHT; if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT) fmt->fmt.win.w.height = BUZ_MIN_HEIGHT; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_try_fmt_vid_out(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; struct zoran_jpg_settings settings; int res = 0; if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) return -EINVAL; mutex_lock(&zr->resource_lock); settings = fh->jpg_settings; /* we actually need to set 'real' parameters now */ if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT) settings.TmpDcm = 1; else settings.TmpDcm = 2; settings.decimation = 0; if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2) settings.VerDcm = 2; else settings.VerDcm = 1; if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4) settings.HorDcm = 4; else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2) settings.HorDcm = 2; else settings.HorDcm = 1; if (settings.TmpDcm == 1) settings.field_per_buff = 2; else settings.field_per_buff = 1; if (settings.HorDcm > 1) { settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; } else { settings.img_x = 0; settings.img_width = BUZ_MAX_WIDTH; } /* check */ res = zoran_check_jpg_settings(zr, &settings, 1); if (res) goto tryfmt_unlock_and_return; /* tell the user what we actually did */ fmt->fmt.pix.width = settings.img_width / settings.HorDcm; fmt->fmt.pix.height = settings.img_height * 2 / (settings.TmpDcm * settings.VerDcm); if (settings.TmpDcm == 1) fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); else fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings); fmt->fmt.pix.bytesperline = 0; fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; tryfmt_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_try_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int bpp; int i; if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) return zoran_try_fmt_vid_out(file, fh, fmt); mutex_lock(&zr->resource_lock); for (i = 0; i < NUM_FORMATS; i++) if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat) break; if (i == NUM_FORMATS) { mutex_unlock(&zr->resource_lock); return -EINVAL; } bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8); v4l_bound_align_image( &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2, &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0); mutex_unlock(&zr->resource_lock); return 0; } static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res; dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", fmt->fmt.win.w.left, fmt->fmt.win.w.top, fmt->fmt.win.w.width, fmt->fmt.win.w.height, fmt->fmt.win.clipcount, fmt->fmt.win.bitmap); mutex_lock(&zr->resource_lock); res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top, fmt->fmt.win.w.width, fmt->fmt.win.w.height, (struct v4l2_clip __user *)fmt->fmt.win.clips, fmt->fmt.win.clipcount, fmt->fmt.win.bitmap); mutex_unlock(&zr->resource_lock); return res; } static int zoran_s_fmt_vid_out(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat); struct zoran_jpg_settings settings; int res = 0; dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n", fmt->fmt.pix.width, fmt->fmt.pix.height, fmt->fmt.pix.pixelformat, (char *) &printformat); if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) return -EINVAL; mutex_lock(&zr->resource_lock); if (fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n", ZR_DEVNAME(zr)); res = -EBUSY; goto sfmtjpg_unlock_and_return; } settings = fh->jpg_settings; /* we actually need to set 'real' parameters now */ if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT) settings.TmpDcm = 1; else settings.TmpDcm = 2; settings.decimation = 0; if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2) settings.VerDcm = 2; else settings.VerDcm = 1; if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4) settings.HorDcm = 4; else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2) settings.HorDcm = 2; else settings.HorDcm = 1; if (settings.TmpDcm == 1) settings.field_per_buff = 2; else settings.field_per_buff = 1; if (settings.HorDcm > 1) { settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; } else { settings.img_x = 0; settings.img_width = BUZ_MAX_WIDTH; } /* check */ res = zoran_check_jpg_settings(zr, &settings, 0); if (res) goto sfmtjpg_unlock_and_return; /* it's ok, so set them */ fh->jpg_settings = settings; map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT); fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); /* tell the user what we actually did */ fmt->fmt.pix.width = settings.img_width / settings.HorDcm; fmt->fmt.pix.height = settings.img_height * 2 / (settings.TmpDcm * settings.VerDcm); if (settings.TmpDcm == 1) fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); else fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); fmt->fmt.pix.bytesperline = 0; fmt->fmt.pix.sizeimage = fh->buffers.buffer_size; fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; sfmtjpg_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *fmt) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int i; int res = 0; if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) return zoran_s_fmt_vid_out(file, fh, fmt); for (i = 0; i < NUM_FORMATS; i++) if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc) break; if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n", ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat); return -EINVAL; } mutex_lock(&zr->resource_lock); if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) || fh->buffers.active != ZORAN_FREE) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n", ZR_DEVNAME(zr)); res = -EBUSY; goto sfmtv4l_unlock_and_return; } if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) fmt->fmt.pix.height = BUZ_MAX_HEIGHT; if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) fmt->fmt.pix.width = BUZ_MAX_WIDTH; map_mode_raw(fh); res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height, &zoran_formats[i]); if (res) goto sfmtv4l_unlock_and_return; /* tell the user the results/missing stuff */ fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline; fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline; fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; else fmt->fmt.pix.field = V4L2_FIELD_TOP; sfmtv4l_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_g_fbuf(struct file *file, void *__fh, struct v4l2_framebuffer *fb) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; memset(fb, 0, sizeof(*fb)); mutex_lock(&zr->resource_lock); fb->base = zr->vbuf_base; fb->fmt.width = zr->vbuf_width; fb->fmt.height = zr->vbuf_height; if (zr->overlay_settings.format) fb->fmt.pixelformat = fh->overlay_settings.format->fourcc; fb->fmt.bytesperline = zr->vbuf_bytesperline; mutex_unlock(&zr->resource_lock); fb->fmt.colorspace = V4L2_COLORSPACE_SRGB; fb->fmt.field = V4L2_FIELD_INTERLACED; fb->flags = V4L2_FBUF_FLAG_OVERLAY; fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; return 0; } static int zoran_s_fbuf(struct file *file, void *__fh, struct v4l2_framebuffer *fb) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int i, res = 0; __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat); for (i = 0; i < NUM_FORMATS; i++) if (zoran_formats[i].fourcc == fb->fmt.pixelformat) break; if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", ZR_DEVNAME(zr), fb->fmt.pixelformat, (char *)&printformat); return -EINVAL; } mutex_lock(&zr->resource_lock); res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width, fb->fmt.height, fb->fmt.bytesperline); mutex_unlock(&zr->resource_lock); return res; } static int zoran_overlay(struct file *file, void *__fh, unsigned int on) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res; mutex_lock(&zr->resource_lock); res = setup_overlay(fh, on); mutex_unlock(&zr->resource_lock); return res; } static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type); static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0; if (req->memory != V4L2_MEMORY_MMAP) { dprintk(2, KERN_ERR "%s: only MEMORY_MMAP capture is supported, not %d\n", ZR_DEVNAME(zr), req->memory); return -EINVAL; } if (req->count == 0) return zoran_streamoff(file, fh, req->type); mutex_lock(&zr->resource_lock); if (fh->buffers.allocated) { dprintk(2, KERN_ERR "%s: VIDIOC_REQBUFS - buffers already allocated\n", ZR_DEVNAME(zr)); res = -EBUSY; goto v4l2reqbuf_unlock_and_return; } if (fh->map_mode == ZORAN_MAP_MODE_RAW && req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { /* control user input */ if (req->count < 2) req->count = 2; if (req->count > v4l_nbufs) req->count = v4l_nbufs; /* The next mmap will map the V4L buffers */ map_mode_raw(fh); fh->buffers.num_buffers = req->count; if (v4l_fbuffer_alloc(fh)) { res = -ENOMEM; goto v4l2reqbuf_unlock_and_return; } } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { /* we need to calculate size ourselves now */ if (req->count < 4) req->count = 4; if (req->count > jpg_nbufs) req->count = jpg_nbufs; /* The next mmap will map the MJPEG buffers */ map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT); fh->buffers.num_buffers = req->count; fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); if (jpg_fbuffer_alloc(fh)) { res = -ENOMEM; goto v4l2reqbuf_unlock_and_return; } } else { dprintk(1, KERN_ERR "%s: VIDIOC_REQBUFS - unknown type %d\n", ZR_DEVNAME(zr), req->type); res = -EINVAL; goto v4l2reqbuf_unlock_and_return; } v4l2reqbuf_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res; mutex_lock(&zr->resource_lock); res = zoran_v4l2_buffer_status(fh, buf, buf->index); mutex_unlock(&zr->resource_lock); return res; } static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0, codec_mode, buf_type; mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { dprintk(1, KERN_ERR "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", ZR_DEVNAME(zr), buf->type, fh->map_mode); res = -EINVAL; goto qbuf_unlock_and_return; } res = zoran_v4l_queue_frame(fh, buf->index); if (res) goto qbuf_unlock_and_return; if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED) zr36057_set_memgrab(zr, 1); break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; codec_mode = BUZ_MODE_MOTION_DECOMPRESS; } else { buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; codec_mode = BUZ_MODE_MOTION_COMPRESS; } if (buf->type != buf_type) { dprintk(1, KERN_ERR "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", ZR_DEVNAME(zr), buf->type, fh->map_mode); res = -EINVAL; goto qbuf_unlock_and_return; } res = zoran_jpg_queue_frame(fh, buf->index, codec_mode); if (res != 0) goto qbuf_unlock_and_return; if (zr->codec_mode == BUZ_MODE_IDLE && fh->buffers.active == ZORAN_LOCKED) zr36057_enable_jpg(zr, codec_mode); break; default: dprintk(1, KERN_ERR "%s: VIDIOC_QBUF - unsupported type %d\n", ZR_DEVNAME(zr), buf->type); res = -EINVAL; break; } qbuf_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0, buf_type, num = -1; /* compiler borks here (?) */ mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { dprintk(1, KERN_ERR "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", ZR_DEVNAME(zr), buf->type, fh->map_mode); res = -EINVAL; goto dqbuf_unlock_and_return; } num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; if (file->f_flags & O_NONBLOCK && zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) { res = -EAGAIN; goto dqbuf_unlock_and_return; } res = v4l_sync(fh, num); if (res) goto dqbuf_unlock_and_return; zr->v4l_sync_tail++; res = zoran_v4l2_buffer_status(fh, buf, num); break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: { struct zoran_sync bs; if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; else buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; if (buf->type != buf_type) { dprintk(1, KERN_ERR "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", ZR_DEVNAME(zr), buf->type, fh->map_mode); res = -EINVAL; goto dqbuf_unlock_and_return; } num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; if (file->f_flags & O_NONBLOCK && zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) { res = -EAGAIN; goto dqbuf_unlock_and_return; } bs.frame = 0; /* suppress compiler warning */ res = jpg_sync(fh, &bs); if (res) goto dqbuf_unlock_and_return; res = zoran_v4l2_buffer_status(fh, buf, bs.frame); break; } default: dprintk(1, KERN_ERR "%s: VIDIOC_DQBUF - unsupported type %d\n", ZR_DEVNAME(zr), buf->type); res = -EINVAL; break; } dqbuf_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0; mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: /* raw capture */ if (zr->v4l_buffers.active != ZORAN_ACTIVE || fh->buffers.active != ZORAN_ACTIVE) { res = -EBUSY; goto strmon_unlock_and_return; } zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED; zr->v4l_settings = fh->v4l_settings; zr->v4l_sync_tail = zr->v4l_pend_tail; if (!zr->v4l_memgrab_active && zr->v4l_pend_head != zr->v4l_pend_tail) { zr36057_set_memgrab(zr, 1); } break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: /* what is the codec mode right now? */ if (zr->jpg_buffers.active != ZORAN_ACTIVE || fh->buffers.active != ZORAN_ACTIVE) { res = -EBUSY; goto strmon_unlock_and_return; } zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED; if (zr->jpg_que_head != zr->jpg_que_tail) { /* Start the jpeg codec when the first frame is queued */ jpeg_start(zr); } break; default: dprintk(1, KERN_ERR "%s: VIDIOC_STREAMON - invalid map mode %d\n", ZR_DEVNAME(zr), fh->map_mode); res = -EINVAL; break; } strmon_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int i, res = 0; unsigned long flags; mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: /* raw capture */ if (fh->buffers.active == ZORAN_FREE && zr->v4l_buffers.active != ZORAN_FREE) { res = -EPERM; /* stay off other's settings! */ goto strmoff_unlock_and_return; } if (zr->v4l_buffers.active == ZORAN_FREE) goto strmoff_unlock_and_return; spin_lock_irqsave(&zr->spinlock, flags); /* unload capture */ if (zr->v4l_memgrab_active) { zr36057_set_memgrab(zr, 0); } for (i = 0; i < fh->buffers.num_buffers; i++) zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER; fh->buffers = zr->v4l_buffers; zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; zr->v4l_grab_seq = 0; zr->v4l_pend_head = zr->v4l_pend_tail = 0; zr->v4l_sync_tail = 0; spin_unlock_irqrestore(&zr->spinlock, flags); break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: if (fh->buffers.active == ZORAN_FREE && zr->jpg_buffers.active != ZORAN_FREE) { res = -EPERM; /* stay off other's settings! */ goto strmoff_unlock_and_return; } if (zr->jpg_buffers.active == ZORAN_FREE) goto strmoff_unlock_and_return; res = jpg_qbuf(fh, -1, (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? BUZ_MODE_MOTION_COMPRESS : BUZ_MODE_MOTION_DECOMPRESS); if (res) goto strmoff_unlock_and_return; break; default: dprintk(1, KERN_ERR "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", ZR_DEVNAME(zr), fh->map_mode); res = -EINVAL; break; } strmoff_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_queryctrl(struct file *file, void *__fh, struct v4l2_queryctrl *ctrl) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; /* we only support hue/saturation/contrast/brightness */ if (ctrl->id < V4L2_CID_BRIGHTNESS || ctrl->id > V4L2_CID_HUE) return -EINVAL; decoder_call(zr, core, queryctrl, ctrl); return 0; } static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; /* we only support hue/saturation/contrast/brightness */ if (ctrl->id < V4L2_CID_BRIGHTNESS || ctrl->id > V4L2_CID_HUE) return -EINVAL; mutex_lock(&zr->resource_lock); decoder_call(zr, core, g_ctrl, ctrl); mutex_unlock(&zr->resource_lock); return 0; } static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; /* we only support hue/saturation/contrast/brightness */ if (ctrl->id < V4L2_CID_BRIGHTNESS || ctrl->id > V4L2_CID_HUE) return -EINVAL; mutex_lock(&zr->resource_lock); decoder_call(zr, core, s_ctrl, ctrl); mutex_unlock(&zr->resource_lock); return 0; } static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; mutex_lock(&zr->resource_lock); *std = zr->norm; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id *std) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0; mutex_lock(&zr->resource_lock); res = zoran_set_norm(zr, *std); if (res) goto sstd_unlock_and_return; res = wait_grab_pending(zr); sstd_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_enum_input(struct file *file, void *__fh, struct v4l2_input *inp) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; if (inp->index >= zr->card.inputs) return -EINVAL; strncpy(inp->name, zr->card.input[inp->index].name, sizeof(inp->name) - 1); inp->type = V4L2_INPUT_TYPE_CAMERA; inp->std = V4L2_STD_ALL; /* Get status of video decoder */ mutex_lock(&zr->resource_lock); decoder_call(zr, video, g_input_status, &inp->status); mutex_unlock(&zr->resource_lock); return 0; } static int zoran_g_input(struct file *file, void *__fh, unsigned int *input) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; mutex_lock(&zr->resource_lock); *input = zr->input; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_s_input(struct file *file, void *__fh, unsigned int input) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res; mutex_lock(&zr->resource_lock); res = zoran_set_input(zr, input); if (res) goto sinput_unlock_and_return; /* Make sure the changes come into effect */ res = wait_grab_pending(zr); sinput_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_enum_output(struct file *file, void *__fh, struct v4l2_output *outp) { if (outp->index != 0) return -EINVAL; outp->index = 0; outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; strncpy(outp->name, "Autodetect", sizeof(outp->name)-1); return 0; } static int zoran_g_output(struct file *file, void *__fh, unsigned int *output) { *output = 0; return 0; } static int zoran_s_output(struct file *file, void *__fh, unsigned int output) { if (output != 0) return -EINVAL; return 0; } /* cropping (sub-frame capture) */ static int zoran_cropcap(struct file *file, void *__fh, struct v4l2_cropcap *cropcap) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int type = cropcap->type, res = 0; memset(cropcap, 0, sizeof(*cropcap)); cropcap->type = type; mutex_lock(&zr->resource_lock); if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || fh->map_mode == ZORAN_MAP_MODE_RAW)) { dprintk(1, KERN_ERR "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n", ZR_DEVNAME(zr)); res = -EINVAL; goto cropcap_unlock_and_return; } cropcap->bounds.top = cropcap->bounds.left = 0; cropcap->bounds.width = BUZ_MAX_WIDTH; cropcap->bounds.height = BUZ_MAX_HEIGHT; cropcap->defrect.top = cropcap->defrect.left = 0; cropcap->defrect.width = BUZ_MIN_WIDTH; cropcap->defrect.height = BUZ_MIN_HEIGHT; cropcap_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int type = crop->type, res = 0; memset(crop, 0, sizeof(*crop)); crop->type = type; mutex_lock(&zr->resource_lock); if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || fh->map_mode == ZORAN_MAP_MODE_RAW)) { dprintk(1, KERN_ERR "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", ZR_DEVNAME(zr)); res = -EINVAL; goto gcrop_unlock_and_return; } crop->c.top = fh->jpg_settings.img_y; crop->c.left = fh->jpg_settings.img_x; crop->c.width = fh->jpg_settings.img_width; crop->c.height = fh->jpg_settings.img_height; gcrop_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_s_crop(struct file *file, void *__fh, struct v4l2_crop *crop) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0; struct zoran_jpg_settings settings; settings = fh->jpg_settings; mutex_lock(&zr->resource_lock); if (fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: VIDIOC_S_CROP - cannot change settings while active\n", ZR_DEVNAME(zr)); res = -EBUSY; goto scrop_unlock_and_return; } if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || fh->map_mode == ZORAN_MAP_MODE_RAW)) { dprintk(1, KERN_ERR "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", ZR_DEVNAME(zr)); res = -EINVAL; goto scrop_unlock_and_return; } /* move into a form that we understand */ settings.img_x = crop->c.left; settings.img_y = crop->c.top; settings.img_width = crop->c.width; settings.img_height = crop->c.height; /* check validity */ res = zoran_check_jpg_settings(zr, &settings, 0); if (res) goto scrop_unlock_and_return; /* accept */ fh->jpg_settings = settings; scrop_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static int zoran_g_jpegcomp(struct file *file, void *__fh, struct v4l2_jpegcompression *params) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; memset(params, 0, sizeof(*params)); mutex_lock(&zr->resource_lock); params->quality = fh->jpg_settings.jpg_comp.quality; params->APPn = fh->jpg_settings.jpg_comp.APPn; memcpy(params->APP_data, fh->jpg_settings.jpg_comp.APP_data, fh->jpg_settings.jpg_comp.APP_len); params->APP_len = fh->jpg_settings.jpg_comp.APP_len; memcpy(params->COM_data, fh->jpg_settings.jpg_comp.COM_data, fh->jpg_settings.jpg_comp.COM_len); params->COM_len = fh->jpg_settings.jpg_comp.COM_len; params->jpeg_markers = fh->jpg_settings.jpg_comp.jpeg_markers; mutex_unlock(&zr->resource_lock); return 0; } static int zoran_s_jpegcomp(struct file *file, void *__fh, struct v4l2_jpegcompression *params) { struct zoran_fh *fh = __fh; struct zoran *zr = fh->zr; int res = 0; struct zoran_jpg_settings settings; settings = fh->jpg_settings; settings.jpg_comp = *params; mutex_lock(&zr->resource_lock); if (fh->buffers.active != ZORAN_FREE) { dprintk(1, KERN_WARNING "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", ZR_DEVNAME(zr)); res = -EBUSY; goto sjpegc_unlock_and_return; } res = zoran_check_jpg_settings(zr, &settings, 0); if (res) goto sjpegc_unlock_and_return; if (!fh->buffers.allocated) fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); fh->jpg_settings.jpg_comp = *params = settings.jpg_comp; sjpegc_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static unsigned int zoran_poll (struct file *file, poll_table *wait) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int res = 0, frame; unsigned long flags; /* we should check whether buffers are ready to be synced on * (w/o waits - O_NONBLOCK) here * if ready for read (sync), return POLLIN|POLLRDNORM, * if ready for write (sync), return POLLOUT|POLLWRNORM, * if error, return POLLERR, * if no buffers queued or so, return POLLNVAL */ mutex_lock(&zr->resource_lock); switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: poll_wait(file, &zr->v4l_capq, wait); frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; spin_lock_irqsave(&zr->spinlock, flags); dprintk(3, KERN_DEBUG "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n", ZR_DEVNAME(zr), __func__, "FAL"[fh->buffers.active], zr->v4l_sync_tail, "UPMD"[zr->v4l_buffers.buffer[frame].state], zr->v4l_pend_tail, zr->v4l_pend_head); /* Process is the one capturing? */ if (fh->buffers.active != ZORAN_FREE && /* Buffer ready to DQBUF? */ zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) res = POLLIN | POLLRDNORM; spin_unlock_irqrestore(&zr->spinlock, flags); break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: poll_wait(file, &zr->jpg_capq, wait); frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; spin_lock_irqsave(&zr->spinlock, flags); dprintk(3, KERN_DEBUG "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n", ZR_DEVNAME(zr), __func__, "FAL"[fh->buffers.active], zr->jpg_que_tail, "UPMD"[zr->jpg_buffers.buffer[frame].state], zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head); if (fh->buffers.active != ZORAN_FREE && zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) res = POLLIN | POLLRDNORM; else res = POLLOUT | POLLWRNORM; } spin_unlock_irqrestore(&zr->spinlock, flags); break; default: dprintk(1, KERN_ERR "%s: %s - internal error, unknown map_mode=%d\n", ZR_DEVNAME(zr), __func__, fh->map_mode); res = POLLNVAL; } mutex_unlock(&zr->resource_lock); return res; } /* * This maps the buffers to user space. * * Depending on the state of fh->map_mode * the V4L or the MJPEG buffers are mapped * per buffer or all together * * Note that we need to connect to some * unmap signal event to unmap the de-allocate * the buffer accordingly (zoran_vm_close()) */ static void zoran_vm_open (struct vm_area_struct *vma) { struct zoran_mapping *map = vma->vm_private_data; map->count++; } static void zoran_vm_close (struct vm_area_struct *vma) { struct zoran_mapping *map = vma->vm_private_data; struct zoran_fh *fh = map->file->private_data; struct zoran *zr = fh->zr; int i; if (--map->count > 0) return; dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); for (i = 0; i < fh->buffers.num_buffers; i++) { if (fh->buffers.buffer[i].map == map) fh->buffers.buffer[i].map = NULL; } kfree(map); /* Any buffers still mapped? */ for (i = 0; i < fh->buffers.num_buffers; i++) if (fh->buffers.buffer[i].map) return; dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); mutex_lock(&zr->resource_lock); if (fh->map_mode == ZORAN_MAP_MODE_RAW) { if (fh->buffers.active != ZORAN_FREE) { unsigned long flags; spin_lock_irqsave(&zr->spinlock, flags); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; spin_unlock_irqrestore(&zr->spinlock, flags); } v4l_fbuffer_free(fh); } else { if (fh->buffers.active != ZORAN_FREE) { jpg_qbuf(fh, -1, zr->codec_mode); zr->jpg_buffers.allocated = 0; zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; } jpg_fbuffer_free(fh); } mutex_unlock(&zr->resource_lock); } static const struct vm_operations_struct zoran_vm_ops = { .open = zoran_vm_open, .close = zoran_vm_close, }; static int zoran_mmap (struct file *file, struct vm_area_struct *vma) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; unsigned long size = (vma->vm_end - vma->vm_start); unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; int i, j; unsigned long page, start = vma->vm_start, todo, pos, fraglen; int first, last; struct zoran_mapping *map; int res = 0; dprintk(3, KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size); if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || !(vma->vm_flags & VM_WRITE)) { dprintk(1, KERN_ERR "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n", ZR_DEVNAME(zr), __func__); return -EINVAL; } mutex_lock(&zr->resource_lock); if (!fh->buffers.allocated) { dprintk(1, KERN_ERR "%s: %s(%s) - buffers not yet allocated\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); res = -ENOMEM; goto mmap_unlock_and_return; } first = offset / fh->buffers.buffer_size; last = first - 1 + size / fh->buffers.buffer_size; if (offset % fh->buffers.buffer_size != 0 || size % fh->buffers.buffer_size != 0 || first < 0 || last < 0 || first >= fh->buffers.num_buffers || last >= fh->buffers.buffer_size) { dprintk(1, KERN_ERR "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size, fh->buffers.buffer_size, fh->buffers.num_buffers); res = -EINVAL; goto mmap_unlock_and_return; } /* Check if any buffers are already mapped */ for (i = first; i <= last; i++) { if (fh->buffers.buffer[i].map) { dprintk(1, KERN_ERR "%s: %s(%s) - buffer %d already mapped\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i); res = -EBUSY; goto mmap_unlock_and_return; } } /* map these buffers */ map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); if (!map) { res = -ENOMEM; goto mmap_unlock_and_return; } map->file = file; map->count = 1; vma->vm_ops = &zoran_vm_ops; vma->vm_flags |= VM_DONTEXPAND; vma->vm_private_data = map; if (fh->map_mode == ZORAN_MAP_MODE_RAW) { for (i = first; i <= last; i++) { todo = size; if (todo > fh->buffers.buffer_size) todo = fh->buffers.buffer_size; page = fh->buffers.buffer[i].v4l.fbuffer_phys; if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, todo, PAGE_SHARED)) { dprintk(1, KERN_ERR "%s: %s(V4L) - remap_pfn_range failed\n", ZR_DEVNAME(zr), __func__); res = -EAGAIN; goto mmap_unlock_and_return; } size -= todo; start += todo; fh->buffers.buffer[i].map = map; if (size == 0) break; } } else { for (i = first; i <= last; i++) { for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { fraglen = (le32_to_cpu(fh->buffers.buffer[i].jpg. frag_tab[2 * j + 1]) & ~1) << 1; todo = size; if (todo > fraglen) todo = fraglen; pos = le32_to_cpu(fh->buffers. buffer[i].jpg.frag_tab[2 * j]); /* should just be pos on i386 */ page = virt_to_phys(bus_to_virt(pos)) >> PAGE_SHIFT; if (remap_pfn_range(vma, start, page, todo, PAGE_SHARED)) { dprintk(1, KERN_ERR "%s: %s(V4L) - remap_pfn_range failed\n", ZR_DEVNAME(zr), __func__); res = -EAGAIN; goto mmap_unlock_and_return; } size -= todo; start += todo; if (size == 0) break; if (le32_to_cpu(fh->buffers.buffer[i].jpg. frag_tab[2 * j + 1]) & 1) break; /* was last fragment */ } fh->buffers.buffer[i].map = map; if (size == 0) break; } } mmap_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; } static const struct v4l2_ioctl_ops zoran_ioctl_ops = { .vidioc_querycap = zoran_querycap, .vidioc_cropcap = zoran_cropcap, .vidioc_s_crop = zoran_s_crop, .vidioc_g_crop = zoran_g_crop, .vidioc_enum_input = zoran_enum_input, .vidioc_g_input = zoran_g_input, .vidioc_s_input = zoran_s_input, .vidioc_enum_output = zoran_enum_output, .vidioc_g_output = zoran_g_output, .vidioc_s_output = zoran_s_output, .vidioc_g_fbuf = zoran_g_fbuf, .vidioc_s_fbuf = zoran_s_fbuf, .vidioc_g_std = zoran_g_std, .vidioc_s_std = zoran_s_std, .vidioc_g_jpegcomp = zoran_g_jpegcomp, .vidioc_s_jpegcomp = zoran_s_jpegcomp, .vidioc_overlay = zoran_overlay, .vidioc_reqbufs = zoran_reqbufs, .vidioc_querybuf = zoran_querybuf, .vidioc_qbuf = zoran_qbuf, .vidioc_dqbuf = zoran_dqbuf, .vidioc_streamon = zoran_streamon, .vidioc_streamoff = zoran_streamoff, .vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap, .vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out, .vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay, .vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap, .vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out, .vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay, .vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap, .vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out, .vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay, .vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap, .vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out, .vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay, .vidioc_queryctrl = zoran_queryctrl, .vidioc_s_ctrl = zoran_s_ctrl, .vidioc_g_ctrl = zoran_g_ctrl, }; /* please use zr->resource_lock consistently and kill this wrapper */ static long zoran_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; int ret; mutex_lock(&zr->other_lock); ret = video_ioctl2(file, cmd, arg); mutex_unlock(&zr->other_lock); return ret; } static const struct v4l2_file_operations zoran_fops = { .owner = THIS_MODULE, .open = zoran_open, .release = zoran_close, .unlocked_ioctl = zoran_ioctl, .read = zoran_read, .write = zoran_write, .mmap = zoran_mmap, .poll = zoran_poll, }; struct video_device zoran_template __devinitdata = { .name = ZORAN_NAME, .fops = &zoran_fops, .ioctl_ops = &zoran_ioctl_ops, .release = &zoran_vdev_release, .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, };