diff options
Diffstat (limited to 'drivers/media/pci/zoran/zoran_driver.c')
| -rw-r--r-- | drivers/media/pci/zoran/zoran_driver.c | 3091 |
1 files changed, 3091 insertions, 0 deletions
diff --git a/drivers/media/pci/zoran/zoran_driver.c b/drivers/media/pci/zoran/zoran_driver.c new file mode 100644 index 0000000..d133c30 --- /dev/null +++ b/drivers/media/pci/zoran/zoran_driver.c @@ -0,0 +1,3091 @@ +/* + * Zoran zr36057/zr36067 PCI controller driver, for the + * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux + * Media Labs LML33/LML33R10. + * + * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> + * + * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> + * + * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> + * + * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> + * + * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> + * + * Based on + * + * Miro DC10 driver + * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> + * + * Iomega Buz driver version 1.0 + * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> + * + * buz.0.0.3 + * Copyright (C) 1998 Dave Perks <dperks@ibm.net> + * + * bttv - Bt848 frame grabber driver + * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) + * & Marcus Metzler (mocm@thp.uni-koeln.de) + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> +#include <linux/wait.h> + +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/i2c-algo-bit.h> + +#include <linux/spinlock.h> + +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include "videocodec.h" + +#include <asm/byteorder.h> +#include <asm/io.h> +#include <asm/uaccess.h> +#include <linux/proc_fs.h> + +#include <linux/mutex.h> +#include "zoran.h" +#include "zoran_device.h" +#include "zoran_card.h" + + +const struct zoran_format zoran_formats[] = { + { + .name = "15-bit RGB LE", + .fourcc = V4L2_PIX_FMT_RGB555, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 15, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif| + ZR36057_VFESPFR_LittleEndian, + }, { + .name = "15-bit RGB BE", + .fourcc = V4L2_PIX_FMT_RGB555X, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 15, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, + }, { + .name = "16-bit RGB LE", + .fourcc = V4L2_PIX_FMT_RGB565, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif| + ZR36057_VFESPFR_LittleEndian, + }, { + .name = "16-bit RGB BE", + .fourcc = V4L2_PIX_FMT_RGB565X, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, + }, { + .name = "24-bit RGB", + .fourcc = V4L2_PIX_FMT_BGR24, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 24, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, + }, { + .name = "32-bit RGB LE", + .fourcc = V4L2_PIX_FMT_BGR32, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 32, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, + }, { + .name = "32-bit RGB BE", + .fourcc = V4L2_PIX_FMT_RGB32, + .colorspace = V4L2_COLORSPACE_SRGB, + .depth = 32, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888, + }, { + .name = "4:2:2, packed, YUYV", + .fourcc = V4L2_PIX_FMT_YUYV, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_YUV422, + }, { + .name = "4:2:2, packed, UYVY", + .fourcc = V4L2_PIX_FMT_UYVY, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, + }, { + .name = "Hardware-encoded Motion-JPEG", + .fourcc = V4L2_PIX_FMT_MJPEG, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + .depth = 0, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_PLAYBACK | + ZORAN_FORMAT_COMPRESSED, + } +}; +#define NUM_FORMATS ARRAY_SIZE(zoran_formats) + + /* small helper function for calculating buffersizes for v4l2 + * we calculate the nearest higher power-of-two, which + * will be the recommended buffersize */ +static __u32 +zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) +{ + __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; + __u32 num = (1024 * 512) / (div); + __u32 result = 2; + + num--; + while (num) { + num >>= 1; + result <<= 1; + } + + if (result > jpg_bufsize) + return jpg_bufsize; + if (result < 8192) + return 8192; + return result; +} + +/* forward references */ +static void v4l_fbuffer_free(struct zoran_fh *fh); +static void jpg_fbuffer_free(struct zoran_fh *fh); + +/* Set mapping mode */ +static void map_mode_raw(struct zoran_fh *fh) +{ + fh->map_mode = ZORAN_MAP_MODE_RAW; + fh->buffers.buffer_size = v4l_bufsize; + fh->buffers.num_buffers = v4l_nbufs; +} +static void map_mode_jpg(struct zoran_fh *fh, int play) +{ + fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC; + fh->buffers.buffer_size = jpg_bufsize; + fh->buffers.num_buffers = jpg_nbufs; +} +static inline const char *mode_name(enum zoran_map_mode mode) +{ + return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG"; +} + +/* + * Allocate the V4L grab buffers + * + * These have to be pysically contiguous. + */ + +static int v4l_fbuffer_alloc(struct zoran_fh *fh) +{ + struct zoran *zr = fh->zr; + int i, off; + unsigned char *mem; + + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (fh->buffers.buffer[i].v4l.fbuffer) + dprintk(2, + KERN_WARNING + "%s: %s - buffer %d already allocated!?\n", + ZR_DEVNAME(zr), __func__, i); + + //udelay(20); + mem = kmalloc(fh->buffers.buffer_size, + GFP_KERNEL | __GFP_NOWARN); + if (!mem) { + dprintk(1, + KERN_ERR + "%s: %s - kmalloc for V4L buf %d failed\n", + ZR_DEVNAME(zr), __func__, i); + v4l_fbuffer_free(fh); + return -ENOBUFS; + } + fh->buffers.buffer[i].v4l.fbuffer = mem; + fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem); + fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem); + for (off = 0; off < fh->buffers.buffer_size; + off += PAGE_SIZE) + SetPageReserved(virt_to_page(mem + off)); + dprintk(4, + KERN_INFO + "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n", + ZR_DEVNAME(zr), __func__, i, (unsigned long) mem, + (unsigned long long)virt_to_bus(mem)); + } + + fh->buffers.allocated = 1; + + return 0; +} + +/* free the V4L grab buffers */ +static void v4l_fbuffer_free(struct zoran_fh *fh) +{ + struct zoran *zr = fh->zr; + int i, off; + unsigned char *mem; + + dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__); + + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (!fh->buffers.buffer[i].v4l.fbuffer) + continue; + + mem = fh->buffers.buffer[i].v4l.fbuffer; + for (off = 0; off < fh->buffers.buffer_size; + off += PAGE_SIZE) + ClearPageReserved(virt_to_page(mem + off)); + kfree(fh->buffers.buffer[i].v4l.fbuffer); + fh->buffers.buffer[i].v4l.fbuffer = NULL; + } + + fh->buffers.allocated = 0; +} + +/* + * Allocate the MJPEG grab buffers. + * + * If a Natoma chipset is present and this is a revision 1 zr36057, + * each MJPEG buffer needs to be physically contiguous. + * (RJ: This statement is from Dave Perks' original driver, + * I could never check it because I have a zr36067) + * + * RJ: The contents grab buffers needs never be accessed in the driver. + * Therefore there is no need to allocate them with vmalloc in order + * to get a contiguous virtual memory space. + * I don't understand why many other drivers first allocate them with + * vmalloc (which uses internally also get_zeroed_page, but delivers you + * virtual addresses) and then again have to make a lot of efforts + * to get the physical address. + * + * Ben Capper: + * On big-endian architectures (such as ppc) some extra steps + * are needed. When reading and writing to the stat_com array + * and fragment buffers, the device expects to see little- + * endian values. The use of cpu_to_le32() and le32_to_cpu() + * in this function (and one or two others in zoran_device.c) + * ensure that these values are always stored in little-endian + * form, regardless of architecture. The zr36057 does Very Bad + * Things on big endian architectures if the stat_com array + * and fragment buffers are not little-endian. + */ + +static int jpg_fbuffer_alloc(struct zoran_fh *fh) +{ + struct zoran *zr = fh->zr; + int i, j, off; + u8 *mem; + + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (fh->buffers.buffer[i].jpg.frag_tab) + dprintk(2, + KERN_WARNING + "%s: %s - buffer %d already allocated!?\n", + ZR_DEVNAME(zr), __func__, i); + + /* Allocate fragment table for this buffer */ + + mem = (void *)get_zeroed_page(GFP_KERNEL); + if (!mem) { + dprintk(1, + KERN_ERR + "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n", + ZR_DEVNAME(zr), __func__, i); + jpg_fbuffer_free(fh); + return -ENOBUFS; + } + fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem; + fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem); + + if (fh->buffers.need_contiguous) { + mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL); + if (mem == NULL) { + dprintk(1, + KERN_ERR + "%s: %s - kmalloc failed for buffer %d\n", + ZR_DEVNAME(zr), __func__, i); + jpg_fbuffer_free(fh); + return -ENOBUFS; + } + fh->buffers.buffer[i].jpg.frag_tab[0] = + cpu_to_le32(virt_to_bus(mem)); + fh->buffers.buffer[i].jpg.frag_tab[1] = + cpu_to_le32((fh->buffers.buffer_size >> 1) | 1); + for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) + SetPageReserved(virt_to_page(mem + off)); + } else { + /* jpg_bufsize is already page aligned */ + for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { + mem = (void *)get_zeroed_page(GFP_KERNEL); + if (mem == NULL) { + dprintk(1, + KERN_ERR + "%s: %s - get_zeroed_page failed for buffer %d\n", + ZR_DEVNAME(zr), __func__, i); + jpg_fbuffer_free(fh); + return -ENOBUFS; + } + + fh->buffers.buffer[i].jpg.frag_tab[2 * j] = + cpu_to_le32(virt_to_bus(mem)); + fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] = + cpu_to_le32((PAGE_SIZE >> 2) << 1); + SetPageReserved(virt_to_page(mem)); + } + + fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1); + } + } + + dprintk(4, + KERN_DEBUG "%s: %s - %d KB allocated\n", + ZR_DEVNAME(zr), __func__, + (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10); + + fh->buffers.allocated = 1; + + return 0; +} + +/* free the MJPEG grab buffers */ +static void jpg_fbuffer_free(struct zoran_fh *fh) +{ + struct zoran *zr = fh->zr; + int i, j, off; + unsigned char *mem; + __le32 frag_tab; + struct zoran_buffer *buffer; + + dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__); + + for (i = 0, buffer = &fh->buffers.buffer[0]; + i < fh->buffers.num_buffers; i++, buffer++) { + if (!buffer->jpg.frag_tab) + continue; + + if (fh->buffers.need_contiguous) { + frag_tab = buffer->jpg.frag_tab[0]; + + if (frag_tab) { + mem = bus_to_virt(le32_to_cpu(frag_tab)); + for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) + ClearPageReserved(virt_to_page(mem + off)); + kfree(mem); + buffer->jpg.frag_tab[0] = 0; + buffer->jpg.frag_tab[1] = 0; + } + } else { + for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { + frag_tab = buffer->jpg.frag_tab[2 * j]; + + if (!frag_tab) + break; + ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab)))); + free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab))); + buffer->jpg.frag_tab[2 * j] = 0; + buffer->jpg.frag_tab[2 * j + 1] = 0; + } + } + + free_page((unsigned long)buffer->jpg.frag_tab); + buffer->jpg.frag_tab = NULL; + } + + fh->buffers.allocated = 0; +} + +/* + * V4L Buffer grabbing + */ + +static int +zoran_v4l_set_format (struct zoran_fh *fh, + int width, + int height, + const struct zoran_format *format) +{ + struct zoran *zr = fh->zr; + int bpp; + + /* Check size and format of the grab wanted */ + + if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || + height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { + dprintk(1, + KERN_ERR + "%s: %s - wrong frame size (%dx%d)\n", + ZR_DEVNAME(zr), __func__, width, height); + return -EINVAL; + } + + bpp = (format->depth + 7) / 8; + + /* Check against available buffer size */ + if (height * width * bpp > fh->buffers.buffer_size) { + dprintk(1, + KERN_ERR + "%s: %s - video buffer size (%d kB) is too small\n", + ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10); + return -EINVAL; + } + + /* The video front end needs 4-byte alinged line sizes */ + + if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { + dprintk(1, + KERN_ERR + "%s: %s - wrong frame alignment\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + fh->v4l_settings.width = width; + fh->v4l_settings.height = height; + fh->v4l_settings.format = format; + fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; + + return 0; +} + +static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num) +{ + struct zoran *zr = fh->zr; + unsigned long flags; + int res = 0; + + if (!fh->buffers.allocated) { + dprintk(1, + KERN_ERR + "%s: %s - buffers not yet allocated\n", + ZR_DEVNAME(zr), __func__); + res = -ENOMEM; + } + + /* No grabbing outside the buffer range! */ + if (num >= fh->buffers.num_buffers || num < 0) { + dprintk(1, + KERN_ERR + "%s: %s - buffer %d is out of range\n", + ZR_DEVNAME(zr), __func__, num); + res = -EINVAL; + } + + spin_lock_irqsave(&zr->spinlock, flags); + + if (fh->buffers.active == ZORAN_FREE) { + if (zr->v4l_buffers.active == ZORAN_FREE) { + zr->v4l_buffers = fh->buffers; + fh->buffers.active = ZORAN_ACTIVE; + } else { + dprintk(1, + KERN_ERR + "%s: %s - another session is already capturing\n", + ZR_DEVNAME(zr), __func__); + res = -EBUSY; + } + } + + /* make sure a grab isn't going on currently with this buffer */ + if (!res) { + switch (zr->v4l_buffers.buffer[num].state) { + default: + case BUZ_STATE_PEND: + if (zr->v4l_buffers.active == ZORAN_FREE) { + fh->buffers.active = ZORAN_FREE; + zr->v4l_buffers.allocated = 0; + } + res = -EBUSY; /* what are you doing? */ + break; + case BUZ_STATE_DONE: + dprintk(2, + KERN_WARNING + "%s: %s - queueing buffer %d in state DONE!?\n", + ZR_DEVNAME(zr), __func__, num); + case BUZ_STATE_USER: + /* since there is at least one unused buffer there's room for at least + * one more pend[] entry */ + zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num; + zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; + zr->v4l_buffers.buffer[num].bs.length = + fh->v4l_settings.bytesperline * + zr->v4l_settings.height; + fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num]; + break; + } + } + + spin_unlock_irqrestore(&zr->spinlock, flags); + + if (!res && zr->v4l_buffers.active == ZORAN_FREE) + zr->v4l_buffers.active = fh->buffers.active; + + return res; +} + +/* + * Sync on a V4L buffer + */ + +static int v4l_sync(struct zoran_fh *fh, int frame) +{ + struct zoran *zr = fh->zr; + unsigned long flags; + + if (fh->buffers.active == ZORAN_FREE) { + dprintk(1, + KERN_ERR + "%s: %s - no grab active for this session\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + /* check passed-in frame number */ + if (frame >= fh->buffers.num_buffers || frame < 0) { + dprintk(1, + KERN_ERR "%s: %s - frame %d is invalid\n", + ZR_DEVNAME(zr), __func__, frame); + return -EINVAL; + } + + /* Check if is buffer was queued at all */ + if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { + dprintk(1, + KERN_ERR + "%s: %s - attempt to sync on a buffer which was not queued?\n", + ZR_DEVNAME(zr), __func__); + return -EPROTO; + } + + /* wait on this buffer to get ready */ + if (!wait_event_interruptible_timeout(zr->v4l_capq, + (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) + return -ETIME; + if (signal_pending(current)) + return -ERESTARTSYS; + + /* buffer should now be in BUZ_STATE_DONE */ + if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) + dprintk(2, + KERN_ERR "%s: %s - internal state error\n", + ZR_DEVNAME(zr), __func__); + + zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; + fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; + + spin_lock_irqsave(&zr->spinlock, flags); + + /* Check if streaming capture has finished */ + if (zr->v4l_pend_tail == zr->v4l_pend_head) { + zr36057_set_memgrab(zr, 0); + if (zr->v4l_buffers.active == ZORAN_ACTIVE) { + fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE; + zr->v4l_buffers.allocated = 0; + } + } + + spin_unlock_irqrestore(&zr->spinlock, flags); + + return 0; +} + +/* + * Queue a MJPEG buffer for capture/playback + */ + +static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num, + enum zoran_codec_mode mode) +{ + struct zoran *zr = fh->zr; + unsigned long flags; + int res = 0; + + /* Check if buffers are allocated */ + if (!fh->buffers.allocated) { + dprintk(1, + KERN_ERR + "%s: %s - buffers not yet allocated\n", + ZR_DEVNAME(zr), __func__); + return -ENOMEM; + } + + /* No grabbing outside the buffer range! */ + if (num >= fh->buffers.num_buffers || num < 0) { + dprintk(1, + KERN_ERR + "%s: %s - buffer %d out of range\n", + ZR_DEVNAME(zr), __func__, num); + return -EINVAL; + } + + /* what is the codec mode right now? */ + if (zr->codec_mode == BUZ_MODE_IDLE) { + zr->jpg_settings = fh->jpg_settings; + } else if (zr->codec_mode != mode) { + /* wrong codec mode active - invalid */ + dprintk(1, + KERN_ERR + "%s: %s - codec in wrong mode\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + if (fh->buffers.active == ZORAN_FREE) { + if (zr->jpg_buffers.active == ZORAN_FREE) { + zr->jpg_buffers = fh->buffers; + fh->buffers.active = ZORAN_ACTIVE; + } else { + dprintk(1, + KERN_ERR + "%s: %s - another session is already capturing\n", + ZR_DEVNAME(zr), __func__); + res = -EBUSY; + } + } + + if (!res && zr->codec_mode == BUZ_MODE_IDLE) { + /* Ok load up the jpeg codec */ + zr36057_enable_jpg(zr, mode); + } + + spin_lock_irqsave(&zr->spinlock, flags); + + if (!res) { + switch (zr->jpg_buffers.buffer[num].state) { + case BUZ_STATE_DONE: + dprintk(2, + KERN_WARNING + "%s: %s - queing frame in BUZ_STATE_DONE state!?\n", + ZR_DEVNAME(zr), __func__); + case BUZ_STATE_USER: + /* since there is at least one unused buffer there's room for at + *least one more pend[] entry */ + zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num; + zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; + fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num]; + zoran_feed_stat_com(zr); + break; + default: + case BUZ_STATE_DMA: + case BUZ_STATE_PEND: + if (zr->jpg_buffers.active == ZORAN_FREE) { + fh->buffers.active = ZORAN_FREE; + zr->jpg_buffers.allocated = 0; + } + res = -EBUSY; /* what are you doing? */ + break; + } + } + + spin_unlock_irqrestore(&zr->spinlock, flags); + + if (!res && zr->jpg_buffers.active == ZORAN_FREE) + zr->jpg_buffers.active = fh->buffers.active; + + return res; +} + +static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode) +{ + struct zoran *zr = fh->zr; + int res = 0; + + /* Does the user want to stop streaming? */ + if (frame < 0) { + if (zr->codec_mode == mode) { + if (fh->buffers.active == ZORAN_FREE) { + dprintk(1, + KERN_ERR + "%s: %s(-1) - session not active\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE; + zr->jpg_buffers.allocated = 0; + zr36057_enable_jpg(zr, BUZ_MODE_IDLE); + return 0; + } else { + dprintk(1, + KERN_ERR + "%s: %s - stop streaming but not in streaming mode\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + } + + if ((res = zoran_jpg_queue_frame(fh, frame, mode))) + return res; + + /* Start the jpeg codec when the first frame is queued */ + if (!res && zr->jpg_que_head == 1) + jpeg_start(zr); + + return res; +} + +/* + * Sync on a MJPEG buffer + */ + +static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs) +{ + struct zoran *zr = fh->zr; + unsigned long flags; + int frame; + + if (fh->buffers.active == ZORAN_FREE) { + dprintk(1, + KERN_ERR + "%s: %s - capture is not currently active\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && + zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { + dprintk(1, + KERN_ERR + "%s: %s - codec not in streaming mode\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + if (!wait_event_interruptible_timeout(zr->jpg_capq, + (zr->jpg_que_tail != zr->jpg_dma_tail || + zr->jpg_dma_tail == zr->jpg_dma_head), + 10*HZ)) { + int isr; + + btand(~ZR36057_JMC_Go_en, ZR36057_JMC); + udelay(1); + zr->codec->control(zr->codec, CODEC_G_STATUS, + sizeof(isr), &isr); + dprintk(1, + KERN_ERR + "%s: %s - timeout: codec isr=0x%02x\n", + ZR_DEVNAME(zr), __func__, isr); + + return -ETIME; + + } + if (signal_pending(current)) + return -ERESTARTSYS; + + spin_lock_irqsave(&zr->spinlock, flags); + + if (zr->jpg_dma_tail != zr->jpg_dma_head) + frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; + else + frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; + + /* buffer should now be in BUZ_STATE_DONE */ + if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) + dprintk(2, + KERN_ERR "%s: %s - internal state error\n", + ZR_DEVNAME(zr), __func__); + + *bs = zr->jpg_buffers.buffer[frame].bs; + bs->frame = frame; + zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; + fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; + + spin_unlock_irqrestore(&zr->spinlock, flags); + + return 0; +} + +static void zoran_open_init_session(struct zoran_fh *fh) +{ + int i; + struct zoran *zr = fh->zr; + + /* Per default, map the V4L Buffers */ + map_mode_raw(fh); + + /* take over the card's current settings */ + fh->overlay_settings = zr->overlay_settings; + fh->overlay_settings.is_set = 0; + fh->overlay_settings.format = zr->overlay_settings.format; + fh->overlay_active = ZORAN_FREE; + + /* v4l settings */ + fh->v4l_settings = zr->v4l_settings; + /* jpg settings */ + fh->jpg_settings = zr->jpg_settings; + + /* buffers */ + memset(&fh->buffers, 0, sizeof(fh->buffers)); + for (i = 0; i < MAX_FRAME; i++) { + fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ + fh->buffers.buffer[i].bs.frame = i; + } + fh->buffers.allocated = 0; + fh->buffers.active = ZORAN_FREE; +} + +static void zoran_close_end_session(struct zoran_fh *fh) +{ + struct zoran *zr = fh->zr; + + /* overlay */ + if (fh->overlay_active != ZORAN_FREE) { + fh->overlay_active = zr->overlay_active = ZORAN_FREE; + zr->v4l_overlay_active = 0; + if (!zr->v4l_memgrab_active) + zr36057_overlay(zr, 0); + zr->overlay_mask = NULL; + } + + if (fh->map_mode == ZORAN_MAP_MODE_RAW) { + /* v4l capture */ + if (fh->buffers.active != ZORAN_FREE) { + unsigned long flags; + + spin_lock_irqsave(&zr->spinlock, flags); + zr36057_set_memgrab(zr, 0); + zr->v4l_buffers.allocated = 0; + zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; + spin_unlock_irqrestore(&zr->spinlock, flags); + } + + /* v4l buffers */ + if (fh->buffers.allocated) + v4l_fbuffer_free(fh); + } else { + /* jpg capture */ + if (fh->buffers.active != ZORAN_FREE) { + zr36057_enable_jpg(zr, BUZ_MODE_IDLE); + zr->jpg_buffers.allocated = 0; + zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; + } + + /* jpg buffers */ + if (fh->buffers.allocated) + jpg_fbuffer_free(fh); + } +} + +/* + * Open a zoran card. Right now the flags stuff is just playing + */ + +static int zoran_open(struct file *file) +{ + struct zoran *zr = video_drvdata(file); + struct zoran_fh *fh; + int res, first_open = 0; + + dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n", + ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1); + + mutex_lock(&zr->other_lock); + + if (zr->user >= 2048) { + dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", + ZR_DEVNAME(zr), zr->user); + res = -EBUSY; + goto fail_unlock; + } + + /* now, create the open()-specific file_ops struct */ + fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); + if (!fh) { + dprintk(1, + KERN_ERR + "%s: %s - allocation of zoran_fh failed\n", + ZR_DEVNAME(zr), __func__); + res = -ENOMEM; + goto fail_unlock; + } + /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows + * on norm-change! */ + fh->overlay_mask = + kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); + if (!fh->overlay_mask) { + dprintk(1, + KERN_ERR + "%s: %s - allocation of overlay_mask failed\n", + ZR_DEVNAME(zr), __func__); + res = -ENOMEM; + goto fail_fh; + } + + if (zr->user++ == 0) + first_open = 1; + + /*mutex_unlock(&zr->resource_lock);*/ + + /* default setup - TODO: look at flags */ + if (first_open) { /* First device open */ + zr36057_restart(zr); + zoran_open_init_params(zr); + zoran_init_hardware(zr); + + btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); + } + + /* set file_ops stuff */ + file->private_data = fh; + fh->zr = zr; + zoran_open_init_session(fh); + mutex_unlock(&zr->other_lock); + + return 0; + +fail_fh: + kfree(fh); +fail_unlock: + mutex_unlock(&zr->other_lock); + + dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n", + ZR_DEVNAME(zr), res, zr->user); + + return res; +} + +static int +zoran_close(struct file *file) +{ + struct zoran_fh *fh = file->private_data; + struct zoran *zr = fh->zr; + + dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n", + ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1); + + /* kernel locks (fs/device.c), so don't do that ourselves + * (prevents deadlocks) */ + mutex_lock(&zr->other_lock); + + zoran_close_end_session(fh); + + if (zr->user-- == 1) { /* Last process */ + /* Clean up JPEG process */ + wake_up_interruptible(&zr->jpg_capq); + zr36057_enable_jpg(zr, BUZ_MODE_IDLE); + zr->jpg_buffers.allocated = 0; + zr->jpg_buffers.active = ZORAN_FREE; + + /* disable interrupts */ + btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); + + if (zr36067_debug > 1) + print_interrupts(zr); + + /* Overlay off */ + zr->v4l_overlay_active = 0; + zr36057_overlay(zr, 0); + zr->overlay_mask = NULL; + + /* capture off */ + wake_up_interruptible(&zr->v4l_capq); + zr36057_set_memgrab(zr, 0); + zr->v4l_buffers.allocated = 0; + zr->v4l_buffers.active = ZORAN_FREE; + zoran_set_pci_master(zr, 0); + + if (!pass_through) { /* Switch to color bar */ + decoder_call(zr, video, s_stream, 0); + encoder_call(zr, video, s_routing, 2, 0, 0); + } + } + mutex_unlock(&zr->other_lock); + + file->private_data = NULL; + kfree(fh->overlay_mask); + kfree(fh); + + dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__); + + return 0; +} + + +static ssize_t +zoran_read (struct file *file, + char __user *data, + size_t count, + loff_t *ppos) +{ + /* we simply don't support read() (yet)... */ + + return -EINVAL; +} + +static ssize_t +zoran_write (struct file *file, + const char __user *data, + size_t count, + loff_t *ppos) +{ + /* ...and the same goes for write() */ + + return -EINVAL; +} + +static int setup_fbuffer(struct zoran_fh *fh, + void *base, + const struct zoran_format *fmt, + int width, + int height, + int bytesperline) +{ + struct zoran *zr = fh->zr; + + /* (Ronald) v4l/v4l2 guidelines */ + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) + return -EPERM; + + /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on + ALi Magik (that needs very low latency while the card needs a + higher value always) */ + + if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) + return -ENXIO; + + /* we need a bytesperline value, even if not given */ + if (!bytesperline) + bytesperline = width * ((fmt->depth + 7) & ~7) / 8; + +#if 0 + if (zr->overlay_active) { + /* dzjee... stupid users... don't even bother to turn off + * overlay before changing the memory location... + * normally, we would return errors here. However, one of + * the tools that does this is... xawtv! and since xawtv + * is used by +/- 99% of the users, we'd rather be user- + * friendly and silently do as if nothing went wrong */ + dprintk(3, + KERN_ERR + "%s: %s - forced overlay turnoff because framebuffer changed\n", + ZR_DEVNAME(zr), __func__); + zr36057_overlay(zr, 0); + } +#endif + + if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { + dprintk(1, + KERN_ERR + "%s: %s - no valid overlay format given\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + if (height <= 0 || width <= 0 || bytesperline <= 0) { + dprintk(1, + KERN_ERR + "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n", + ZR_DEVNAME(zr), __func__, width, height, bytesperline); + return -EINVAL; + } + if (bytesperline & 3) { + dprintk(1, + KERN_ERR + "%s: %s - bytesperline (%d) must be 4-byte aligned\n", + ZR_DEVNAME(zr), __func__, bytesperline); + return -EINVAL; + } + + zr->vbuf_base = (void *) ((unsigned long) base & ~3); + zr->vbuf_height = height; + zr->vbuf_width = width; + zr->vbuf_depth = fmt->depth; + zr->overlay_settings.format = fmt; + zr->vbuf_bytesperline = bytesperline; + + /* The user should set new window parameters */ + zr->overlay_settings.is_set = 0; + + return 0; +} + + +static int setup_window(struct zoran_fh *fh, + int x, + int y, + int width, + int height, + struct v4l2_clip __user *clips, + unsigned int clipcount, + void __user *bitmap) +{ + struct zoran *zr = fh->zr; + struct v4l2_clip *vcp = NULL; + int on, end; + + + if (!zr->vbuf_base) { + dprintk(1, + KERN_ERR + "%s: %s - frame buffer has to be set first\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + if (!fh->overlay_settings.format) { + dprintk(1, + KERN_ERR + "%s: %s - no overlay format set\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + if (clipcount > 2048) { + dprintk(1, + KERN_ERR + "%s: %s - invalid clipcount\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + /* + * The video front end needs 4-byte alinged line sizes, we correct that + * silently here if necessary + */ + if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) { + end = (x + width) & ~1; /* round down */ + x = (x + 1) & ~1; /* round up */ + width = end - x; + } + + if (zr->vbuf_depth == 24) { + end = (x + width) & ~3; /* round down */ + x = (x + 3) & ~3; /* round up */ + width = end - x; + } + + if (width > BUZ_MAX_WIDTH) + width = BUZ_MAX_WIDTH; + if (height > BUZ_MAX_HEIGHT) + height = BUZ_MAX_HEIGHT; + + /* Check for invalid parameters */ + if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || + width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { + dprintk(1, + KERN_ERR + "%s: %s - width = %d or height = %d invalid\n", + ZR_DEVNAME(zr), __func__, width, height); + return -EINVAL; + } + + fh->overlay_settings.x = x; + fh->overlay_settings.y = y; + fh->overlay_settings.width = width; + fh->overlay_settings.height = height; + fh->overlay_settings.clipcount = clipcount; + + /* + * If an overlay is running, we have to switch it off + * and switch it on again in order to get the new settings in effect. + * + * We also want to avoid that the overlay mask is written + * when an overlay is running. + */ + + on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && + zr->overlay_active != ZORAN_FREE && + fh->overlay_active != ZORAN_FREE; + if (on) + zr36057_overlay(zr, 0); + + /* + * Write the overlay mask if clips are wanted. + * We prefer a bitmap. + */ + if (bitmap) { + /* fake value - it just means we want clips */ + fh->overlay_settings.clipcount = 1; + + if (copy_from_user(fh->overlay_mask, bitmap, + (width * height + 7) / 8)) { + return -EFAULT; + } + } else if (clipcount) { + /* write our own bitmap from the clips */ + vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4)); + if (vcp == NULL) { + dprintk(1, + KERN_ERR + "%s: %s - Alloc of clip mask failed\n", + ZR_DEVNAME(zr), __func__); + return -ENOMEM; + } + if (copy_from_user + (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) { + vfree(vcp); + return -EFAULT; + } + write_overlay_mask(fh, vcp, clipcount); + vfree(vcp); + } + + fh->overlay_settings.is_set = 1; + if (fh->overlay_active != ZORAN_FREE && + zr->overlay_active != ZORAN_FREE) + zr->overlay_settings = fh->overlay_settings; + + if (on) + zr36057_overlay(zr, 1); + + /* Make sure the changes come into effect */ + return wait_grab_pending(zr); +} + +static int setup_overlay(struct zoran_fh *fh, int on) +{ + struct zoran *zr = fh->zr; + + /* If there is nothing to do, return immediately */ + if ((on && fh->overlay_active != ZORAN_FREE) || + (!on && fh->overlay_active == ZORAN_FREE)) + return 0; + + /* check whether we're touching someone else's overlay */ + if (on && zr->overlay_active != ZORAN_FREE && + fh->overlay_active == ZORAN_FREE) { + dprintk(1, + KERN_ERR + "%s: %s - overlay is already active for another session\n", + ZR_DEVNAME(zr), __func__); + return -EBUSY; + } + if (!on && zr->overlay_active != ZORAN_FREE && + fh->overlay_active == ZORAN_FREE) { + dprintk(1, + KERN_ERR + "%s: %s - you cannot cancel someone else's session\n", + ZR_DEVNAME(zr), __func__); + return -EPERM; + } + + if (on == 0) { + zr->overlay_active = fh->overlay_active = ZORAN_FREE; + zr->v4l_overlay_active = 0; + /* When a grab is running, the video simply + * won't be switched on any more */ + if (!zr->v4l_memgrab_active) + zr36057_overlay(zr, 0); + zr->overlay_mask = NULL; + } else { + if (!zr->vbuf_base || !fh->overlay_settings.is_set) { + dprintk(1, + KERN_ERR + "%s: %s - buffer or window not set\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + if (!fh->overlay_settings.format) { + dprintk(1, + KERN_ERR + "%s: %s - no overlay format set\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; + zr->v4l_overlay_active = 1; + zr->overlay_mask = fh->overlay_mask; + zr->overlay_settings = fh->overlay_settings; + if (!zr->v4l_memgrab_active) + zr36057_overlay(zr, 1); + /* When a grab is running, the video will be + * switched on when grab is finished */ + } + + /* Make sure the changes come into effect */ + return wait_grab_pending(zr); +} + +/* get the status of a buffer in the clients buffer queue */ +static int zoran_v4l2_buffer_status(struct zoran_fh *fh, + struct v4l2_buffer *buf, int num) +{ + struct zoran *zr = fh->zr; + unsigned long flags; + + buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: + /* check range */ + if (num < 0 || num >= fh->buffers.num_buffers || + !fh->buffers.allocated) { + dprintk(1, + KERN_ERR + "%s: %s - wrong number or buffers not allocated\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + spin_lock_irqsave(&zr->spinlock, flags); + dprintk(3, + KERN_DEBUG + "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n", + ZR_DEVNAME(zr), __func__, + "FAL"[fh->buffers.active], num, + "UPMD"[zr->v4l_buffers.buffer[num].state], + fh->buffers.buffer[num].map ? 'Y' : 'N'); + spin_unlock_irqrestore(&zr->spinlock, flags); + + buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + buf->length = fh->buffers.buffer_size; + + /* get buffer */ + buf->bytesused = fh->buffers.buffer[num].bs.length; + if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || + fh->buffers.buffer[num].state == BUZ_STATE_USER) { + buf->sequence = fh->buffers.buffer[num].bs.seq; + buf->flags |= V4L2_BUF_FLAG_DONE; + buf->timestamp = fh->buffers.buffer[num].bs.timestamp; + } else { + buf->flags |= V4L2_BUF_FLAG_QUEUED; + } + + if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) + buf->field = V4L2_FIELD_TOP; + else + buf->field = V4L2_FIELD_INTERLACED; + + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + + /* check range */ + if (num < 0 || num >= fh->buffers.num_buffers || + !fh->buffers.allocated) { + dprintk(1, + KERN_ERR + "%s: %s - wrong number or buffers not allocated\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? + V4L2_BUF_TYPE_VIDEO_CAPTURE : + V4L2_BUF_TYPE_VIDEO_OUTPUT; + buf->length = fh->buffers.buffer_size; + + /* these variables are only written after frame has been captured */ + if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || + fh->buffers.buffer[num].state == BUZ_STATE_USER) { + buf->sequence = fh->buffers.buffer[num].bs.seq; + buf->timestamp = fh->buffers.buffer[num].bs.timestamp; + buf->bytesused = fh->buffers.buffer[num].bs.length; + buf->flags |= V4L2_BUF_FLAG_DONE; + } else { + buf->flags |= V4L2_BUF_FLAG_QUEUED; + } + + /* which fields are these? */ + if (fh->jpg_settings.TmpDcm != 1) + buf->field = fh->jpg_settings.odd_even ? + V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; + else + buf->field = fh->jpg_settings.odd_even ? + V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT; + + break; + + default: + + dprintk(5, + KERN_ERR + "%s: %s - invalid buffer type|map_mode (%d|%d)\n", + ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode); + return -EINVAL; + } + + buf->memory = V4L2_MEMORY_MMAP; + buf->index = num; + buf->m.offset = buf->length * num; + + return 0; +} + +static int +zoran_set_norm (struct zoran *zr, + v4l2_std_id norm) +{ + int on; + + if (zr->v4l_buffers.active != ZORAN_FREE || + zr->jpg_buffers.active != ZORAN_FREE) { + dprintk(1, + KERN_WARNING + "%s: %s called while in playback/capture mode\n", + ZR_DEVNAME(zr), __func__); + return -EBUSY; + } + + if (!(norm & zr->card.norms)) { + dprintk(1, + KERN_ERR "%s: %s - unsupported norm %llx\n", + ZR_DEVNAME(zr), __func__, norm); + return -EINVAL; + } + + if (norm == V4L2_STD_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->capability = V4L2_FBUF_CAP_LIST_CLIPPING; + + return 0; +} + +static int zoran_s_fbuf(struct file *file, void *__fh, + const struct v4l2_framebuffer *fb) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int i, res = 0; + __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat); + + for (i = 0; i < NUM_FORMATS; i++) + if (zoran_formats[i].fourcc == fb->fmt.pixelformat) + break; + if (i == NUM_FORMATS) { + dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", + ZR_DEVNAME(zr), fb->fmt.pixelformat, + (char *)&printformat); + return -EINVAL; + } + + mutex_lock(&zr->resource_lock); + res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width, + fb->fmt.height, fb->fmt.bytesperline); + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_overlay(struct file *file, void *__fh, unsigned int on) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res; + + mutex_lock(&zr->resource_lock); + res = setup_overlay(fh, on); + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type); + +static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0; + + if (req->memory != V4L2_MEMORY_MMAP) { + dprintk(2, + KERN_ERR + "%s: only MEMORY_MMAP capture is supported, not %d\n", + ZR_DEVNAME(zr), req->memory); + return -EINVAL; + } + + if (req->count == 0) + return zoran_streamoff(file, fh, req->type); + + mutex_lock(&zr->resource_lock); + if (fh->buffers.allocated) { + dprintk(2, + KERN_ERR + "%s: VIDIOC_REQBUFS - buffers already allocated\n", + ZR_DEVNAME(zr)); + res = -EBUSY; + goto v4l2reqbuf_unlock_and_return; + } + + if (fh->map_mode == ZORAN_MAP_MODE_RAW && + req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + /* control user input */ + if (req->count < 2) + req->count = 2; + if (req->count > v4l_nbufs) + req->count = v4l_nbufs; + + /* The next mmap will map the V4L buffers */ + map_mode_raw(fh); + fh->buffers.num_buffers = req->count; + + if (v4l_fbuffer_alloc(fh)) { + res = -ENOMEM; + goto v4l2reqbuf_unlock_and_return; + } + } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || + fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { + /* we need to calculate size ourselves now */ + if (req->count < 4) + req->count = 4; + if (req->count > jpg_nbufs) + req->count = jpg_nbufs; + + /* The next mmap will map the MJPEG buffers */ + map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT); + fh->buffers.num_buffers = req->count; + fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); + + if (jpg_fbuffer_alloc(fh)) { + res = -ENOMEM; + goto v4l2reqbuf_unlock_and_return; + } + } else { + dprintk(1, + KERN_ERR + "%s: VIDIOC_REQBUFS - unknown type %d\n", + ZR_DEVNAME(zr), req->type); + res = -EINVAL; + goto v4l2reqbuf_unlock_and_return; + } +v4l2reqbuf_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res; + + mutex_lock(&zr->resource_lock); + res = zoran_v4l2_buffer_status(fh, buf, buf->index); + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0, codec_mode, buf_type; + + mutex_lock(&zr->resource_lock); + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: + if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + dprintk(1, KERN_ERR + "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", + ZR_DEVNAME(zr), buf->type, fh->map_mode); + res = -EINVAL; + goto qbuf_unlock_and_return; + } + + res = zoran_v4l_queue_frame(fh, buf->index); + if (res) + goto qbuf_unlock_and_return; + if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED) + zr36057_set_memgrab(zr, 1); + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { + buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + codec_mode = BUZ_MODE_MOTION_DECOMPRESS; + } else { + buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + codec_mode = BUZ_MODE_MOTION_COMPRESS; + } + + if (buf->type != buf_type) { + dprintk(1, KERN_ERR + "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", + ZR_DEVNAME(zr), buf->type, fh->map_mode); + res = -EINVAL; + goto qbuf_unlock_and_return; + } + + res = zoran_jpg_queue_frame(fh, buf->index, codec_mode); + if (res != 0) + goto qbuf_unlock_and_return; + if (zr->codec_mode == BUZ_MODE_IDLE && + fh->buffers.active == ZORAN_LOCKED) + zr36057_enable_jpg(zr, codec_mode); + + break; + + default: + dprintk(1, KERN_ERR + "%s: VIDIOC_QBUF - unsupported type %d\n", + ZR_DEVNAME(zr), buf->type); + res = -EINVAL; + break; + } +qbuf_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0, buf_type, num = -1; /* compiler borks here (?) */ + + mutex_lock(&zr->resource_lock); + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: + if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + dprintk(1, KERN_ERR + "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", + ZR_DEVNAME(zr), buf->type, fh->map_mode); + res = -EINVAL; + goto dqbuf_unlock_and_return; + } + + num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; + if (file->f_flags & O_NONBLOCK && + zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) { + res = -EAGAIN; + goto dqbuf_unlock_and_return; + } + res = v4l_sync(fh, num); + if (res) + goto dqbuf_unlock_and_return; + zr->v4l_sync_tail++; + res = zoran_v4l2_buffer_status(fh, buf, num); + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + { + struct zoran_sync bs; + + if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) + buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + else + buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + + if (buf->type != buf_type) { + dprintk(1, KERN_ERR + "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", + ZR_DEVNAME(zr), buf->type, fh->map_mode); + res = -EINVAL; + goto dqbuf_unlock_and_return; + } + + num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; + + if (file->f_flags & O_NONBLOCK && + zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) { + res = -EAGAIN; + goto dqbuf_unlock_and_return; + } + bs.frame = 0; /* suppress compiler warning */ + res = jpg_sync(fh, &bs); + if (res) + goto dqbuf_unlock_and_return; + res = zoran_v4l2_buffer_status(fh, buf, bs.frame); + break; + } + + default: + dprintk(1, KERN_ERR + "%s: VIDIOC_DQBUF - unsupported type %d\n", + ZR_DEVNAME(zr), buf->type); + res = -EINVAL; + break; + } +dqbuf_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0; + + mutex_lock(&zr->resource_lock); + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: /* raw capture */ + if (zr->v4l_buffers.active != ZORAN_ACTIVE || + fh->buffers.active != ZORAN_ACTIVE) { + res = -EBUSY; + goto strmon_unlock_and_return; + } + + zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED; + zr->v4l_settings = fh->v4l_settings; + + zr->v4l_sync_tail = zr->v4l_pend_tail; + if (!zr->v4l_memgrab_active && + zr->v4l_pend_head != zr->v4l_pend_tail) { + zr36057_set_memgrab(zr, 1); + } + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + /* what is the codec mode right now? */ + if (zr->jpg_buffers.active != ZORAN_ACTIVE || + fh->buffers.active != ZORAN_ACTIVE) { + res = -EBUSY; + goto strmon_unlock_and_return; + } + + zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED; + + if (zr->jpg_que_head != zr->jpg_que_tail) { + /* Start the jpeg codec when the first frame is queued */ + jpeg_start(zr); + } + break; + + default: + dprintk(1, + KERN_ERR + "%s: VIDIOC_STREAMON - invalid map mode %d\n", + ZR_DEVNAME(zr), fh->map_mode); + res = -EINVAL; + break; + } +strmon_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int i, res = 0; + unsigned long flags; + + mutex_lock(&zr->resource_lock); + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: /* raw capture */ + if (fh->buffers.active == ZORAN_FREE && + zr->v4l_buffers.active != ZORAN_FREE) { + res = -EPERM; /* stay off other's settings! */ + goto strmoff_unlock_and_return; + } + if (zr->v4l_buffers.active == ZORAN_FREE) + goto strmoff_unlock_and_return; + + spin_lock_irqsave(&zr->spinlock, flags); + /* unload capture */ + if (zr->v4l_memgrab_active) { + + zr36057_set_memgrab(zr, 0); + } + + for (i = 0; i < fh->buffers.num_buffers; i++) + zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER; + fh->buffers = zr->v4l_buffers; + + zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; + + zr->v4l_grab_seq = 0; + zr->v4l_pend_head = zr->v4l_pend_tail = 0; + zr->v4l_sync_tail = 0; + + spin_unlock_irqrestore(&zr->spinlock, flags); + + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + if (fh->buffers.active == ZORAN_FREE && + zr->jpg_buffers.active != ZORAN_FREE) { + res = -EPERM; /* stay off other's settings! */ + goto strmoff_unlock_and_return; + } + if (zr->jpg_buffers.active == ZORAN_FREE) + goto strmoff_unlock_and_return; + + res = jpg_qbuf(fh, -1, + (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? + BUZ_MODE_MOTION_COMPRESS : + BUZ_MODE_MOTION_DECOMPRESS); + if (res) + goto strmoff_unlock_and_return; + break; + default: + dprintk(1, KERN_ERR + "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", + ZR_DEVNAME(zr), fh->map_mode); + res = -EINVAL; + break; + } +strmoff_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_queryctrl(struct file *file, void *__fh, + struct v4l2_queryctrl *ctrl) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + /* we only support hue/saturation/contrast/brightness */ + if (ctrl->id < V4L2_CID_BRIGHTNESS || + ctrl->id > V4L2_CID_HUE) + return -EINVAL; + + decoder_call(zr, core, queryctrl, ctrl); + + return 0; +} + +static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + /* we only support hue/saturation/contrast/brightness */ + if (ctrl->id < V4L2_CID_BRIGHTNESS || + ctrl->id > V4L2_CID_HUE) + return -EINVAL; + + mutex_lock(&zr->resource_lock); + decoder_call(zr, core, g_ctrl, ctrl); + mutex_unlock(&zr->resource_lock); + + return 0; +} + +static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + /* we only support hue/saturation/contrast/brightness */ + if (ctrl->id < V4L2_CID_BRIGHTNESS || + ctrl->id > V4L2_CID_HUE) + return -EINVAL; + + mutex_lock(&zr->resource_lock); + decoder_call(zr, core, s_ctrl, ctrl); + mutex_unlock(&zr->resource_lock); + + return 0; +} + +static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + mutex_lock(&zr->resource_lock); + *std = zr->norm; + mutex_unlock(&zr->resource_lock); + return 0; +} + +static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0; + + mutex_lock(&zr->resource_lock); + res = zoran_set_norm(zr, std); + if (res) + goto sstd_unlock_and_return; + + res = wait_grab_pending(zr); +sstd_unlock_and_return: + mutex_unlock(&zr->resource_lock); + return res; +} + +static int zoran_enum_input(struct file *file, void *__fh, + struct v4l2_input *inp) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + if (inp->index >= zr->card.inputs) + return -EINVAL; + + strncpy(inp->name, zr->card.input[inp->index].name, + sizeof(inp->name) - 1); + inp->type = V4L2_INPUT_TYPE_CAMERA; + inp->std = V4L2_STD_ALL; + + /* Get status of video decoder */ + mutex_lock(&zr->resource_lock); + decoder_call(zr, video, g_input_status, &inp->status); + mutex_unlock(&zr->resource_lock); + return 0; +} + +static int zoran_g_input(struct file *file, void *__fh, unsigned int *input) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + + mutex_lock(&zr->resource_lock); + *input = zr->input; + mutex_unlock(&zr->resource_lock); + + return 0; +} + +static int zoran_s_input(struct file *file, void *__fh, unsigned int input) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res; + + mutex_lock(&zr->resource_lock); + res = zoran_set_input(zr, input); + if (res) + goto sinput_unlock_and_return; + + /* Make sure the changes come into effect */ + res = wait_grab_pending(zr); +sinput_unlock_and_return: + mutex_unlock(&zr->resource_lock); + return res; +} + +static int zoran_enum_output(struct file *file, void *__fh, + struct v4l2_output *outp) +{ + if (outp->index != 0) + return -EINVAL; + + outp->index = 0; + outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; + strncpy(outp->name, "Autodetect", sizeof(outp->name)-1); + + return 0; +} + +static int zoran_g_output(struct file *file, void *__fh, unsigned int *output) +{ + *output = 0; + + return 0; +} + +static int zoran_s_output(struct file *file, void *__fh, unsigned int output) +{ + if (output != 0) + return -EINVAL; + + return 0; +} + +/* cropping (sub-frame capture) */ +static int zoran_cropcap(struct file *file, void *__fh, + struct v4l2_cropcap *cropcap) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int type = cropcap->type, res = 0; + + memset(cropcap, 0, sizeof(*cropcap)); + cropcap->type = type; + + mutex_lock(&zr->resource_lock); + + if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && + (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + fh->map_mode == ZORAN_MAP_MODE_RAW)) { + dprintk(1, KERN_ERR + "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n", + ZR_DEVNAME(zr)); + res = -EINVAL; + goto cropcap_unlock_and_return; + } + + cropcap->bounds.top = cropcap->bounds.left = 0; + cropcap->bounds.width = BUZ_MAX_WIDTH; + cropcap->bounds.height = BUZ_MAX_HEIGHT; + cropcap->defrect.top = cropcap->defrect.left = 0; + cropcap->defrect.width = BUZ_MIN_WIDTH; + cropcap->defrect.height = BUZ_MIN_HEIGHT; +cropcap_unlock_and_return: + mutex_unlock(&zr->resource_lock); + return res; +} + +static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int type = crop->type, res = 0; + + memset(crop, 0, sizeof(*crop)); + crop->type = type; + + mutex_lock(&zr->resource_lock); + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && + (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + fh->map_mode == ZORAN_MAP_MODE_RAW)) { + dprintk(1, + KERN_ERR + "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", + ZR_DEVNAME(zr)); + res = -EINVAL; + goto gcrop_unlock_and_return; + } + + crop->c.top = fh->jpg_settings.img_y; + crop->c.left = fh->jpg_settings.img_x; + crop->c.width = fh->jpg_settings.img_width; + crop->c.height = fh->jpg_settings.img_height; + +gcrop_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *crop) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0; + struct zoran_jpg_settings settings; + + settings = fh->jpg_settings; + + mutex_lock(&zr->resource_lock); + + if (fh->buffers.allocated) { + dprintk(1, KERN_ERR + "%s: VIDIOC_S_CROP - cannot change settings while active\n", + ZR_DEVNAME(zr)); + res = -EBUSY; + goto scrop_unlock_and_return; + } + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && + (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + fh->map_mode == ZORAN_MAP_MODE_RAW)) { + dprintk(1, KERN_ERR + "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n", + ZR_DEVNAME(zr)); + res = -EINVAL; + goto scrop_unlock_and_return; + } + + /* move into a form that we understand */ + settings.img_x = crop->c.left; + settings.img_y = crop->c.top; + settings.img_width = crop->c.width; + settings.img_height = crop->c.height; + + /* check validity */ + res = zoran_check_jpg_settings(zr, &settings, 0); + if (res) + goto scrop_unlock_and_return; + + /* accept */ + fh->jpg_settings = settings; + +scrop_unlock_and_return: + mutex_unlock(&zr->resource_lock); + return res; +} + +static int zoran_g_jpegcomp(struct file *file, void *__fh, + struct v4l2_jpegcompression *params) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + memset(params, 0, sizeof(*params)); + + mutex_lock(&zr->resource_lock); + + params->quality = fh->jpg_settings.jpg_comp.quality; + params->APPn = fh->jpg_settings.jpg_comp.APPn; + memcpy(params->APP_data, + fh->jpg_settings.jpg_comp.APP_data, + fh->jpg_settings.jpg_comp.APP_len); + params->APP_len = fh->jpg_settings.jpg_comp.APP_len; + memcpy(params->COM_data, + fh->jpg_settings.jpg_comp.COM_data, + fh->jpg_settings.jpg_comp.COM_len); + params->COM_len = fh->jpg_settings.jpg_comp.COM_len; + params->jpeg_markers = + fh->jpg_settings.jpg_comp.jpeg_markers; + + mutex_unlock(&zr->resource_lock); + + return 0; +} + +static int zoran_s_jpegcomp(struct file *file, void *__fh, + const struct v4l2_jpegcompression *params) +{ + struct zoran_fh *fh = __fh; + struct zoran *zr = fh->zr; + int res = 0; + struct zoran_jpg_settings settings; + + settings = fh->jpg_settings; + + settings.jpg_comp = *params; + + mutex_lock(&zr->resource_lock); + + if (fh->buffers.active != ZORAN_FREE) { + dprintk(1, KERN_WARNING + "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", + ZR_DEVNAME(zr)); + res = -EBUSY; + goto sjpegc_unlock_and_return; + } + + res = zoran_check_jpg_settings(zr, &settings, 0); + if (res) + goto sjpegc_unlock_and_return; + if (!fh->buffers.allocated) + fh->buffers.buffer_size = + zoran_v4l2_calc_bufsize(&fh->jpg_settings); + fh->jpg_settings.jpg_comp = settings.jpg_comp; +sjpegc_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static unsigned int +zoran_poll (struct file *file, + poll_table *wait) +{ + struct zoran_fh *fh = file->private_data; + struct zoran *zr = fh->zr; + int res = 0, frame; + unsigned long flags; + + /* we should check whether buffers are ready to be synced on + * (w/o waits - O_NONBLOCK) here + * if ready for read (sync), return POLLIN|POLLRDNORM, + * if ready for write (sync), return POLLOUT|POLLWRNORM, + * if error, return POLLERR, + * if no buffers queued or so, return POLLNVAL + */ + + mutex_lock(&zr->resource_lock); + + switch (fh->map_mode) { + case ZORAN_MAP_MODE_RAW: + poll_wait(file, &zr->v4l_capq, wait); + frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; + + spin_lock_irqsave(&zr->spinlock, flags); + dprintk(3, + KERN_DEBUG + "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n", + ZR_DEVNAME(zr), __func__, + "FAL"[fh->buffers.active], zr->v4l_sync_tail, + "UPMD"[zr->v4l_buffers.buffer[frame].state], + zr->v4l_pend_tail, zr->v4l_pend_head); + /* Process is the one capturing? */ + if (fh->buffers.active != ZORAN_FREE && + /* Buffer ready to DQBUF? */ + zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) + res = POLLIN | POLLRDNORM; + spin_unlock_irqrestore(&zr->spinlock, flags); + + break; + + case ZORAN_MAP_MODE_JPG_REC: + case ZORAN_MAP_MODE_JPG_PLAY: + poll_wait(file, &zr->jpg_capq, wait); + frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; + + spin_lock_irqsave(&zr->spinlock, flags); + dprintk(3, + KERN_DEBUG + "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n", + ZR_DEVNAME(zr), __func__, + "FAL"[fh->buffers.active], zr->jpg_que_tail, + "UPMD"[zr->jpg_buffers.buffer[frame].state], + zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head); + if (fh->buffers.active != ZORAN_FREE && + zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { + if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) + res = POLLIN | POLLRDNORM; + else + res = POLLOUT | POLLWRNORM; + } + spin_unlock_irqrestore(&zr->spinlock, flags); + + break; + + default: + dprintk(1, + KERN_ERR + "%s: %s - internal error, unknown map_mode=%d\n", + ZR_DEVNAME(zr), __func__, fh->map_mode); + res = POLLNVAL; + } + + mutex_unlock(&zr->resource_lock); + + return res; +} + + +/* + * This maps the buffers to user space. + * + * Depending on the state of fh->map_mode + * the V4L or the MJPEG buffers are mapped + * per buffer or all together + * + * Note that we need to connect to some + * unmap signal event to unmap the de-allocate + * the buffer accordingly (zoran_vm_close()) + */ + +static void +zoran_vm_open (struct vm_area_struct *vma) +{ + struct zoran_mapping *map = vma->vm_private_data; + atomic_inc(&map->count); +} + +static void +zoran_vm_close (struct vm_area_struct *vma) +{ + struct zoran_mapping *map = vma->vm_private_data; + struct zoran_fh *fh = map->fh; + struct zoran *zr = fh->zr; + int i; + + if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock)) + return; + + dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr), + __func__, mode_name(fh->map_mode)); + + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (fh->buffers.buffer[i].map == map) + fh->buffers.buffer[i].map = NULL; + } + kfree(map); + + /* Any buffers still mapped? */ + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (fh->buffers.buffer[i].map) { + mutex_unlock(&zr->resource_lock); + return; + } + } + + dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr), + __func__, mode_name(fh->map_mode)); + + + if (fh->map_mode == ZORAN_MAP_MODE_RAW) { + if (fh->buffers.active != ZORAN_FREE) { + unsigned long flags; + + spin_lock_irqsave(&zr->spinlock, flags); + zr36057_set_memgrab(zr, 0); + zr->v4l_buffers.allocated = 0; + zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; + spin_unlock_irqrestore(&zr->spinlock, flags); + } + v4l_fbuffer_free(fh); + } else { + if (fh->buffers.active != ZORAN_FREE) { + jpg_qbuf(fh, -1, zr->codec_mode); + zr->jpg_buffers.allocated = 0; + zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; + } + jpg_fbuffer_free(fh); + } + + mutex_unlock(&zr->resource_lock); +} + +static const struct vm_operations_struct zoran_vm_ops = { + .open = zoran_vm_open, + .close = zoran_vm_close, +}; + +static int +zoran_mmap (struct file *file, + struct vm_area_struct *vma) +{ + struct zoran_fh *fh = file->private_data; + struct zoran *zr = fh->zr; + unsigned long size = (vma->vm_end - vma->vm_start); + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + int i, j; + unsigned long page, start = vma->vm_start, todo, pos, fraglen; + int first, last; + struct zoran_mapping *map; + int res = 0; + + dprintk(3, + KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n", + ZR_DEVNAME(zr), __func__, + mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size); + + if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || + !(vma->vm_flags & VM_WRITE)) { + dprintk(1, + KERN_ERR + "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n", + ZR_DEVNAME(zr), __func__); + return -EINVAL; + } + + mutex_lock(&zr->resource_lock); + + if (!fh->buffers.allocated) { + dprintk(1, + KERN_ERR + "%s: %s(%s) - buffers not yet allocated\n", + ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); + res = -ENOMEM; + goto mmap_unlock_and_return; + } + + first = offset / fh->buffers.buffer_size; + last = first - 1 + size / fh->buffers.buffer_size; + if (offset % fh->buffers.buffer_size != 0 || + size % fh->buffers.buffer_size != 0 || first < 0 || + last < 0 || first >= fh->buffers.num_buffers || + last >= fh->buffers.buffer_size) { + dprintk(1, + KERN_ERR + "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", + ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size, + fh->buffers.buffer_size, + fh->buffers.num_buffers); + res = -EINVAL; + goto mmap_unlock_and_return; + } + + /* Check if any buffers are already mapped */ + for (i = first; i <= last; i++) { + if (fh->buffers.buffer[i].map) { + dprintk(1, + KERN_ERR + "%s: %s(%s) - buffer %d already mapped\n", + ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i); + res = -EBUSY; + goto mmap_unlock_and_return; + } + } + + /* map these buffers */ + map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); + if (!map) { + res = -ENOMEM; + goto mmap_unlock_and_return; + } + map->fh = fh; + atomic_set(&map->count, 1); + + vma->vm_ops = &zoran_vm_ops; + vma->vm_flags |= VM_DONTEXPAND; + vma->vm_private_data = map; + + if (fh->map_mode == ZORAN_MAP_MODE_RAW) { + for (i = first; i <= last; i++) { + todo = size; + if (todo > fh->buffers.buffer_size) + todo = fh->buffers.buffer_size; + page = fh->buffers.buffer[i].v4l.fbuffer_phys; + if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, + todo, PAGE_SHARED)) { + dprintk(1, + KERN_ERR + "%s: %s(V4L) - remap_pfn_range failed\n", + ZR_DEVNAME(zr), __func__); + res = -EAGAIN; + goto mmap_unlock_and_return; + } + size -= todo; + start += todo; + fh->buffers.buffer[i].map = map; + if (size == 0) + break; + } + } else { + for (i = first; i <= last; i++) { + for (j = 0; + j < fh->buffers.buffer_size / PAGE_SIZE; + j++) { + fraglen = + (le32_to_cpu(fh->buffers.buffer[i].jpg. + frag_tab[2 * j + 1]) & ~1) << 1; + todo = size; + if (todo > fraglen) + todo = fraglen; + pos = + le32_to_cpu(fh->buffers. + buffer[i].jpg.frag_tab[2 * j]); + /* should just be pos on i386 */ + page = virt_to_phys(bus_to_virt(pos)) + >> PAGE_SHIFT; + if (remap_pfn_range(vma, start, page, + todo, PAGE_SHARED)) { + dprintk(1, + KERN_ERR + "%s: %s(V4L) - remap_pfn_range failed\n", + ZR_DEVNAME(zr), __func__); + res = -EAGAIN; + goto mmap_unlock_and_return; + } + size -= todo; + start += todo; + if (size == 0) + break; + if (le32_to_cpu(fh->buffers.buffer[i].jpg. + frag_tab[2 * j + 1]) & 1) + break; /* was last fragment */ + } + fh->buffers.buffer[i].map = map; + if (size == 0) + break; + + } + } + +mmap_unlock_and_return: + mutex_unlock(&zr->resource_lock); + + return res; +} + +static const struct v4l2_ioctl_ops zoran_ioctl_ops = { + .vidioc_querycap = zoran_querycap, + .vidioc_cropcap = zoran_cropcap, + .vidioc_s_crop = zoran_s_crop, + .vidioc_g_crop = zoran_g_crop, + .vidioc_enum_input = zoran_enum_input, + .vidioc_g_input = zoran_g_input, + .vidioc_s_input = zoran_s_input, + .vidioc_enum_output = zoran_enum_output, + .vidioc_g_output = zoran_g_output, + .vidioc_s_output = zoran_s_output, + .vidioc_g_fbuf = zoran_g_fbuf, + .vidioc_s_fbuf = zoran_s_fbuf, + .vidioc_g_std = zoran_g_std, + .vidioc_s_std = zoran_s_std, + .vidioc_g_jpegcomp = zoran_g_jpegcomp, + .vidioc_s_jpegcomp = zoran_s_jpegcomp, + .vidioc_overlay = zoran_overlay, + .vidioc_reqbufs = zoran_reqbufs, + .vidioc_querybuf = zoran_querybuf, + .vidioc_qbuf = zoran_qbuf, + .vidioc_dqbuf = zoran_dqbuf, + .vidioc_streamon = zoran_streamon, + .vidioc_streamoff = zoran_streamoff, + .vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap, + .vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out, + .vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay, + .vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap, + .vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out, + .vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay, + .vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap, + .vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out, + .vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay, + .vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap, + .vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out, + .vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay, + .vidioc_queryctrl = zoran_queryctrl, + .vidioc_s_ctrl = zoran_s_ctrl, + .vidioc_g_ctrl = zoran_g_ctrl, +}; + +/* please use zr->resource_lock consistently and kill this wrapper */ +static long zoran_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct zoran_fh *fh = file->private_data; + struct zoran *zr = fh->zr; + int ret; + + mutex_lock(&zr->other_lock); + ret = video_ioctl2(file, cmd, arg); + mutex_unlock(&zr->other_lock); + + return ret; +} + +static const struct v4l2_file_operations zoran_fops = { + .owner = THIS_MODULE, + .open = zoran_open, + .release = zoran_close, + .unlocked_ioctl = zoran_ioctl, + .read = zoran_read, + .write = zoran_write, + .mmap = zoran_mmap, + .poll = zoran_poll, +}; + +struct video_device zoran_template = { + .name = ZORAN_NAME, + .fops = &zoran_fops, + .ioctl_ops = &zoran_ioctl_ops, + .release = &zoran_vdev_release, + .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, +}; + |