diff options
Diffstat (limited to 'drivers/staging/go7007/go7007-v4l2.c')
| -rw-r--r-- | drivers/staging/go7007/go7007-v4l2.c | 1499 |
1 files changed, 0 insertions, 1499 deletions
diff --git a/drivers/staging/go7007/go7007-v4l2.c b/drivers/staging/go7007/go7007-v4l2.c deleted file mode 100644 index 94e1141a1fc..00000000000 --- a/drivers/staging/go7007/go7007-v4l2.c +++ /dev/null @@ -1,1499 +0,0 @@ -/* - * Copyright (C) 2005-2006 Micronas USA Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/version.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/fs.h> -#include <linux/unistd.h> -#include <linux/time.h> -#include <linux/vmalloc.h> -#include <linux/pagemap.h> -#include <linux/videodev2.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <linux/i2c.h> -#include <linux/semaphore.h> -#include <linux/uaccess.h> -#include <asm/system.h> - -#include "go7007.h" -#include "go7007-priv.h" -#include "wis-i2c.h" - -static void deactivate_buffer(struct go7007_buffer *gobuf) -{ - int i; - - if (gobuf->state != BUF_STATE_IDLE) { - list_del(&gobuf->stream); - gobuf->state = BUF_STATE_IDLE; - } - if (gobuf->page_count > 0) { - for (i = 0; i < gobuf->page_count; ++i) - page_cache_release(gobuf->pages[i]); - gobuf->page_count = 0; - } -} - -static void abort_queued(struct go7007 *go) -{ - struct go7007_buffer *gobuf, *next; - - list_for_each_entry_safe(gobuf, next, &go->stream, stream) { - deactivate_buffer(gobuf); - } -} - -static int go7007_streamoff(struct go7007 *go) -{ - int retval = -EINVAL; - unsigned long flags; - - down(&go->hw_lock); - if (go->streaming) { - go->streaming = 0; - go7007_stream_stop(go); - spin_lock_irqsave(&go->spinlock, flags); - abort_queued(go); - spin_unlock_irqrestore(&go->spinlock, flags); - go7007_reset_encoder(go); - retval = 0; - } - up(&go->hw_lock); - return 0; -} - -static int go7007_open(struct inode *inode, struct file *file) -{ - struct go7007 *go = video_get_drvdata(video_devdata(file)); - struct go7007_file *gofh; - - if (go->status != STATUS_ONLINE) - return -EBUSY; - gofh = kmalloc(sizeof(struct go7007_file), GFP_KERNEL); - if (gofh == NULL) - return -ENOMEM; - ++go->ref_count; - gofh->go = go; - init_MUTEX(&gofh->lock); - gofh->buf_count = 0; - file->private_data = gofh; - return 0; -} - -static int go7007_release(struct inode *inode, struct file *file) -{ - struct go7007_file *gofh = file->private_data; - struct go7007 *go = gofh->go; - - if (gofh->buf_count > 0) { - go7007_streamoff(go); - go->in_use = 0; - kfree(gofh->bufs); - gofh->buf_count = 0; - } - kfree(gofh); - if (--go->ref_count == 0) - kfree(go); - file->private_data = NULL; - return 0; -} - -static u32 get_frame_type_flag(struct go7007_buffer *gobuf, int format) -{ - u8 *f = page_address(gobuf->pages[0]); - - switch (format) { - case GO7007_FORMAT_MJPEG: - return V4L2_BUF_FLAG_KEYFRAME; - case GO7007_FORMAT_MPEG4: - switch ((f[gobuf->frame_offset + 4] >> 6) & 0x3) { - case 0: - return V4L2_BUF_FLAG_KEYFRAME; - case 1: - return V4L2_BUF_FLAG_PFRAME; - case 2: - return V4L2_BUF_FLAG_BFRAME; - default: - return 0; - } - case GO7007_FORMAT_MPEG1: - case GO7007_FORMAT_MPEG2: - switch ((f[gobuf->frame_offset + 5] >> 3) & 0x7) { - case 1: - return V4L2_BUF_FLAG_KEYFRAME; - case 2: - return V4L2_BUF_FLAG_PFRAME; - case 3: - return V4L2_BUF_FLAG_BFRAME; - default: - return 0; - } - } - - return 0; -} - -static int set_capture_size(struct go7007 *go, struct v4l2_format *fmt, int try) -{ - int sensor_height = 0, sensor_width = 0; - int width, height, i; - - if (fmt != NULL && fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && - fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG && - fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG4) - return -EINVAL; - - switch (go->standard) { - case GO7007_STD_NTSC: - sensor_width = 720; - sensor_height = 480; - break; - case GO7007_STD_PAL: - sensor_width = 720; - sensor_height = 576; - break; - case GO7007_STD_OTHER: - sensor_width = go->board_info->sensor_width; - sensor_height = go->board_info->sensor_height; - break; - } - - if (fmt == NULL) { - width = sensor_width; - height = sensor_height; - } else if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) { - if (fmt->fmt.pix.width > sensor_width) - width = sensor_width; - else if (fmt->fmt.pix.width < 144) - width = 144; - else - width = fmt->fmt.pix.width & ~0x0f; - - if (fmt->fmt.pix.height > sensor_height) - height = sensor_height; - else if (fmt->fmt.pix.height < 96) - height = 96; - else - height = fmt->fmt.pix.height & ~0x0f; - } else { - int requested_size = fmt->fmt.pix.width * fmt->fmt.pix.height; - int sensor_size = sensor_width * sensor_height; - - if (64 * requested_size < 9 * sensor_size) { - width = sensor_width / 4; - height = sensor_height / 4; - } else if (64 * requested_size < 36 * sensor_size) { - width = sensor_width / 2; - height = sensor_height / 2; - } else { - width = sensor_width; - height = sensor_height; - } - width &= ~0xf; - height &= ~0xf; - } - - if (fmt != NULL) { - u32 pixelformat = fmt->fmt.pix.pixelformat; - - memset(fmt, 0, sizeof(*fmt)); - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt->fmt.pix.width = width; - fmt->fmt.pix.height = height; - fmt->fmt.pix.pixelformat = pixelformat; - fmt->fmt.pix.field = V4L2_FIELD_NONE; - fmt->fmt.pix.bytesperline = 0; - fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE; - fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* ?? */ - } - - if (try) - return 0; - - go->width = width; - go->height = height; - go->encoder_h_offset = go->board_info->sensor_h_offset; - go->encoder_v_offset = go->board_info->sensor_v_offset; - for (i = 0; i < 4; ++i) - go->modet[i].enable = 0; - for (i = 0; i < 1624; ++i) - go->modet_map[i] = 0; - - if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) { - struct video_decoder_resolution res; - - res.width = width; - if (height > sensor_height / 2) { - res.height = height / 2; - go->encoder_v_halve = 0; - } else { - res.height = height; - go->encoder_v_halve = 1; - } - if (go->i2c_adapter_online) - i2c_clients_command(&go->i2c_adapter, - DECODER_SET_RESOLUTION, &res); - } else { - if (width <= sensor_width / 4) { - go->encoder_h_halve = 1; - go->encoder_v_halve = 1; - go->encoder_subsample = 1; - } else if (width <= sensor_width / 2) { - go->encoder_h_halve = 1; - go->encoder_v_halve = 1; - go->encoder_subsample = 0; - } else { - go->encoder_h_halve = 0; - go->encoder_v_halve = 0; - go->encoder_subsample = 0; - } - } - - if (fmt == NULL) - return 0; - - switch (fmt->fmt.pix.pixelformat) { - case V4L2_PIX_FMT_MPEG: - if (go->format == GO7007_FORMAT_MPEG1 || - go->format == GO7007_FORMAT_MPEG2 || - go->format == GO7007_FORMAT_MPEG4) - break; - go->format = GO7007_FORMAT_MPEG1; - go->pali = 0; - go->aspect_ratio = GO7007_RATIO_1_1; - go->gop_size = go->sensor_framerate / 1000; - go->ipb = 0; - go->closed_gop = 1; - go->repeat_seqhead = 1; - go->seq_header_enable = 1; - go->gop_header_enable = 1; - go->dvd_mode = 0; - break; - /* Backwards compatibility only! */ - case V4L2_PIX_FMT_MPEG4: - if (go->format == GO7007_FORMAT_MPEG4) - break; - go->format = GO7007_FORMAT_MPEG4; - go->pali = 0xf5; - go->aspect_ratio = GO7007_RATIO_1_1; - go->gop_size = go->sensor_framerate / 1000; - go->ipb = 0; - go->closed_gop = 1; - go->repeat_seqhead = 1; - go->seq_header_enable = 1; - go->gop_header_enable = 1; - go->dvd_mode = 0; - break; - case V4L2_PIX_FMT_MJPEG: - go->format = GO7007_FORMAT_MJPEG; - go->pali = 0; - go->aspect_ratio = GO7007_RATIO_1_1; - go->gop_size = 0; - go->ipb = 0; - go->closed_gop = 0; - go->repeat_seqhead = 0; - go->seq_header_enable = 0; - go->gop_header_enable = 0; - go->dvd_mode = 0; - break; - } - return 0; -} - -static int clip_to_modet_map(struct go7007 *go, int region, - struct v4l2_clip *clip_list) -{ - struct v4l2_clip clip, *clip_ptr; - int x, y, mbnum; - - /* Check if coordinates are OK and if any macroblocks are already - * used by other regions (besides 0) */ - clip_ptr = clip_list; - while (clip_ptr) { - if (copy_from_user(&clip, clip_ptr, sizeof(clip))) - return -EFAULT; - if (clip.c.left < 0 || (clip.c.left & 0xF) || - clip.c.width <= 0 || (clip.c.width & 0xF)) - return -EINVAL; - if (clip.c.left + clip.c.width > go->width) - return -EINVAL; - if (clip.c.top < 0 || (clip.c.top & 0xF) || - clip.c.height <= 0 || (clip.c.height & 0xF)) - return -EINVAL; - if (clip.c.top + clip.c.height > go->height) - return -EINVAL; - for (y = 0; y < clip.c.height; y += 16) - for (x = 0; x < clip.c.width; x += 16) { - mbnum = (go->width >> 4) * - ((clip.c.top + y) >> 4) + - ((clip.c.left + x) >> 4); - if (go->modet_map[mbnum] != 0 && - go->modet_map[mbnum] != region) - return -EBUSY; - } - clip_ptr = clip.next; - } - - /* Clear old region macroblocks */ - for (mbnum = 0; mbnum < 1624; ++mbnum) - if (go->modet_map[mbnum] == region) - go->modet_map[mbnum] = 0; - - /* Claim macroblocks in this list */ - clip_ptr = clip_list; - while (clip_ptr) { - if (copy_from_user(&clip, clip_ptr, sizeof(clip))) - return -EFAULT; - for (y = 0; y < clip.c.height; y += 16) - for (x = 0; x < clip.c.width; x += 16) { - mbnum = (go->width >> 4) * - ((clip.c.top + y) >> 4) + - ((clip.c.left + x) >> 4); - go->modet_map[mbnum] = region; - } - clip_ptr = clip.next; - } - return 0; -} - -static int go7007_do_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) -{ - struct go7007_file *gofh = file->private_data; - struct go7007 *go = gofh->go; - unsigned long flags; - int retval = 0; - - switch (cmd) { - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = arg; - - memset(cap, 0, sizeof(*cap)); - strcpy(cap->driver, "go7007"); - strncpy(cap->card, go->name, sizeof(cap->card)); - cap->version = KERNEL_VERSION(0, 9, 8); - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_STREAMING; /* | V4L2_CAP_AUDIO; */ - if (go->board_info->flags & GO7007_BOARD_HAS_TUNER) - cap->capabilities |= V4L2_CAP_TUNER; - return 0; - } - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *fmt = arg; - unsigned int index; - char *desc; - u32 pixelformat; - - if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - switch (fmt->index) { - case 0: - pixelformat = V4L2_PIX_FMT_MJPEG; - desc = "Motion-JPEG"; - break; - case 1: - pixelformat = V4L2_PIX_FMT_MPEG; - desc = "MPEG1/MPEG2/MPEG4"; - break; - default: - return -EINVAL; - } - index = fmt->index; - memset(fmt, 0, sizeof(*fmt)); - fmt->index = index; - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt->flags = V4L2_FMT_FLAG_COMPRESSED; - strncpy(fmt->description, desc, sizeof(fmt->description)); - fmt->pixelformat = pixelformat; - - return 0; - } - case VIDIOC_TRY_FMT: - { - struct v4l2_format *fmt = arg; - - if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return set_capture_size(go, fmt, 1); - } - case VIDIOC_G_FMT: - { - struct v4l2_format *fmt = arg; - - if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(fmt, 0, sizeof(*fmt)); - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt->fmt.pix.width = go->width; - fmt->fmt.pix.height = go->height; - fmt->fmt.pix.pixelformat = go->format == GO7007_FORMAT_MJPEG ? - V4L2_PIX_FMT_MJPEG : V4L2_PIX_FMT_MPEG; - fmt->fmt.pix.field = V4L2_FIELD_NONE; - fmt->fmt.pix.bytesperline = 0; - fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE; - fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* ?? */ - return 0; - } - case VIDIOC_S_FMT: - { - struct v4l2_format *fmt = arg; - - if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (go->streaming) - return -EBUSY; - return set_capture_size(go, fmt, 0); - } - case VIDIOC_G_FBUF: - case VIDIOC_S_FBUF: - return -EINVAL; - case VIDIOC_REQBUFS: - { - struct v4l2_requestbuffers *req = arg; - unsigned int count, i; - - if (go->streaming) - return -EBUSY; - if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - req->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - - down(&gofh->lock); - retval = -EBUSY; - for (i = 0; i < gofh->buf_count; ++i) - if (gofh->bufs[i].mapped > 0) - goto unlock_and_return; - down(&go->hw_lock); - if (go->in_use > 0 && gofh->buf_count == 0) { - up(&go->hw_lock); - goto unlock_and_return; - } - if (gofh->buf_count > 0) - kfree(gofh->bufs); - retval = -ENOMEM; - count = req->count; - if (count > 0) { - if (count < 2) - count = 2; - if (count > 32) - count = 32; - gofh->bufs = kmalloc(count * - sizeof(struct go7007_buffer), - GFP_KERNEL); - if (gofh->bufs == NULL) { - up(&go->hw_lock); - goto unlock_and_return; - } - memset(gofh->bufs, 0, - count * sizeof(struct go7007_buffer)); - for (i = 0; i < count; ++i) { - gofh->bufs[i].go = go; - gofh->bufs[i].index = i; - gofh->bufs[i].state = BUF_STATE_IDLE; - gofh->bufs[i].mapped = 0; - } - go->in_use = 1; - } else { - go->in_use = 0; - } - gofh->buf_count = count; - up(&go->hw_lock); - up(&gofh->lock); - memset(req, 0, sizeof(*req)); - req->count = count; - req->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - req->memory = V4L2_MEMORY_MMAP; - return 0; - } - case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *buf = arg; - unsigned int index; - - retval = -EINVAL; - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - index = buf->index; - down(&gofh->lock); - if (index >= gofh->buf_count) - goto unlock_and_return; - memset(buf, 0, sizeof(*buf)); - buf->index = index; - buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - switch (gofh->bufs[index].state) { - case BUF_STATE_QUEUED: - buf->flags = V4L2_BUF_FLAG_QUEUED; - break; - case BUF_STATE_DONE: - buf->flags = V4L2_BUF_FLAG_DONE; - break; - default: - buf->flags = 0; - } - if (gofh->bufs[index].mapped) - buf->flags |= V4L2_BUF_FLAG_MAPPED; - buf->memory = V4L2_MEMORY_MMAP; - buf->m.offset = index * GO7007_BUF_SIZE; - buf->length = GO7007_BUF_SIZE; - up(&gofh->lock); - - return 0; - } - case VIDIOC_QBUF: - { - struct v4l2_buffer *buf = arg; - struct go7007_buffer *gobuf; - int ret; - - retval = -EINVAL; - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - buf->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - down(&gofh->lock); - if (buf->index < 0 || buf->index >= gofh->buf_count) - goto unlock_and_return; - gobuf = &gofh->bufs[buf->index]; - if (gobuf->mapped == 0) - goto unlock_and_return; - retval = -EBUSY; - if (gobuf->state != BUF_STATE_IDLE) - goto unlock_and_return; - /* offset will be 0 until we really support USERPTR streaming */ - gobuf->offset = gobuf->user_addr & ~PAGE_MASK; - gobuf->bytesused = 0; - gobuf->frame_offset = 0; - gobuf->modet_active = 0; - if (gobuf->offset > 0) - gobuf->page_count = GO7007_BUF_PAGES + 1; - else - gobuf->page_count = GO7007_BUF_PAGES; - retval = -ENOMEM; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, - gobuf->user_addr & PAGE_MASK, gobuf->page_count, - 1, 1, gobuf->pages, NULL); - up_read(¤t->mm->mmap_sem); - if (ret != gobuf->page_count) { - int i; - for (i = 0; i < ret; ++i) - page_cache_release(gobuf->pages[i]); - gobuf->page_count = 0; - goto unlock_and_return; - } - gobuf->state = BUF_STATE_QUEUED; - spin_lock_irqsave(&go->spinlock, flags); - list_add_tail(&gobuf->stream, &go->stream); - spin_unlock_irqrestore(&go->spinlock, flags); - up(&gofh->lock); - return 0; - } - case VIDIOC_DQBUF: - { - struct v4l2_buffer *buf = arg; - struct go7007_buffer *gobuf; - u32 frame_type_flag; - DEFINE_WAIT(wait); - - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (buf->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - down(&gofh->lock); - retval = -EINVAL; - if (list_empty(&go->stream)) - goto unlock_and_return; - gobuf = list_entry(go->stream.next, - struct go7007_buffer, stream); - retval = -EAGAIN; - if (gobuf->state != BUF_STATE_DONE && - !(file->f_flags & O_NONBLOCK)) { - for (;;) { - prepare_to_wait(&go->frame_waitq, &wait, - TASK_INTERRUPTIBLE); - if (gobuf->state == BUF_STATE_DONE) - break; - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } - schedule(); - } - finish_wait(&go->frame_waitq, &wait); - } - if (gobuf->state != BUF_STATE_DONE) - goto unlock_and_return; - spin_lock_irqsave(&go->spinlock, flags); - deactivate_buffer(gobuf); - spin_unlock_irqrestore(&go->spinlock, flags); - frame_type_flag = get_frame_type_flag(gobuf, go->format); - gobuf->state = BUF_STATE_IDLE; - memset(buf, 0, sizeof(*buf)); - buf->index = gobuf->index; - buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf->bytesused = gobuf->bytesused; - buf->flags = V4L2_BUF_FLAG_MAPPED | frame_type_flag; - buf->field = V4L2_FIELD_NONE; - buf->timestamp = gobuf->timestamp; - buf->sequence = gobuf->seq; - buf->memory = V4L2_MEMORY_MMAP; - buf->m.offset = gobuf->index * GO7007_BUF_SIZE; - buf->length = GO7007_BUF_SIZE; - buf->reserved = gobuf->modet_active; - up(&gofh->lock); - return 0; - } - case VIDIOC_STREAMON: - { - unsigned int *type = arg; - - if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - down(&gofh->lock); - down(&go->hw_lock); - if (!go->streaming) { - go->streaming = 1; - go->next_seq = 0; - go->active_buf = NULL; - if (go7007_start_encoder(go) < 0) - retval = -EIO; - else - retval = 0; - } - up(&go->hw_lock); - up(&gofh->lock); - return retval; - } - case VIDIOC_STREAMOFF: - { - unsigned int *type = arg; - - if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - down(&gofh->lock); - go7007_streamoff(go); - up(&gofh->lock); - return 0; - } - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *ctrl = arg; - u32 id; - - if (!go->i2c_adapter_online) - return -EIO; - id = ctrl->id; - memset(ctrl, 0, sizeof(*ctrl)); - ctrl->id = id; - i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, arg); - return ctrl->name[0] == 0 ? -EINVAL : 0; - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - struct v4l2_queryctrl query; - - if (!go->i2c_adapter_online) - return -EIO; - memset(&query, 0, sizeof(query)); - query.id = ctrl->id; - i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, &query); - if (query.name[0] == 0) - return -EINVAL; - i2c_clients_command(&go->i2c_adapter, VIDIOC_G_CTRL, arg); - return 0; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - struct v4l2_queryctrl query; - - if (!go->i2c_adapter_online) - return -EIO; - memset(&query, 0, sizeof(query)); - query.id = ctrl->id; - i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, &query); - if (query.name[0] == 0) - return -EINVAL; - i2c_clients_command(&go->i2c_adapter, VIDIOC_S_CTRL, arg); - return 0; - } - case VIDIOC_G_PARM: - { - struct v4l2_streamparm *parm = arg; - struct v4l2_fract timeperframe = { - .numerator = 1001 * go->fps_scale, - .denominator = go->sensor_framerate, - }; - - if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(parm, 0, sizeof(*parm)); - parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - parm->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME; - parm->parm.capture.timeperframe = timeperframe; - return 0; - } - case VIDIOC_S_PARM: - { - struct v4l2_streamparm *parm = arg; - unsigned int n, d; - - if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (parm->parm.capture.capturemode != 0) - return -EINVAL; - n = go->sensor_framerate * - parm->parm.capture.timeperframe.numerator; - d = 1001 * parm->parm.capture.timeperframe.denominator; - if (n != 0 && d != 0 && n > d) - go->fps_scale = (n + d/2) / d; - else - go->fps_scale = 1; - return 0; - } - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *std = arg; - - if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) && - go->input == go->board_info->num_inputs - 1) { - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, - VIDIOC_ENUMSTD, arg); - if (!std->id) /* hack to indicate EINVAL from tuner */ - return -EINVAL; - } else if (go->board_info->sensor_flags & GO7007_SENSOR_TV) { - switch (std->index) { - case 0: - v4l2_video_std_construct(std, - V4L2_STD_NTSC, "NTSC"); - break; - case 1: - v4l2_video_std_construct(std, - V4L2_STD_PAL | V4L2_STD_SECAM, - "PAL/SECAM"); - break; - default: - return -EINVAL; - } - } else { - if (std->index != 0) - return -EINVAL; - memset(std, 0, sizeof(*std)); - snprintf(std->name, sizeof(std->name), "%dx%d, %dfps", - go->board_info->sensor_width, - go->board_info->sensor_height, - go->board_info->sensor_framerate / 1000); - std->frameperiod.numerator = 1001; - std->frameperiod.denominator = - go->board_info->sensor_framerate; - } - return 0; - } - case VIDIOC_G_STD: - { - v4l2_std_id *std = arg; - - if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) && - go->input == go->board_info->num_inputs - 1) { - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, - VIDIOC_G_STD, arg); - } else if (go->board_info->sensor_flags & GO7007_SENSOR_TV) { - if (go->standard == GO7007_STD_NTSC) - *std = V4L2_STD_NTSC; - else - *std = V4L2_STD_PAL | V4L2_STD_SECAM; - } else - *std = 0; - return 0; - } - case VIDIOC_S_STD: - { - v4l2_std_id *std = arg; - - if (go->streaming) - return -EBUSY; - if (!(go->board_info->sensor_flags & GO7007_SENSOR_TV) && - *std != 0) - return -EINVAL; - if (*std == 0) - return -EINVAL; - if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) && - go->input == go->board_info->num_inputs - 1) { - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, - VIDIOC_S_STD, arg); - if (!*std) /* hack to indicate EINVAL from tuner */ - return -EINVAL; - } - if (*std & V4L2_STD_NTSC) { - go->standard = GO7007_STD_NTSC; - go->sensor_framerate = 30000; - } else if (*std & V4L2_STD_PAL) { - go->standard = GO7007_STD_PAL; - go->sensor_framerate = 25025; - } else if (*std & V4L2_STD_SECAM) { - go->standard = GO7007_STD_PAL; - go->sensor_framerate = 25025; - } else - return -EINVAL; - if (go->i2c_adapter_online) - i2c_clients_command(&go->i2c_adapter, - VIDIOC_S_STD, std); - set_capture_size(go, NULL, 0); - return 0; - } - case VIDIOC_QUERYSTD: - { - v4l2_std_id *std = arg; - - if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) && - go->input == go->board_info->num_inputs - 1) { - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, - VIDIOC_QUERYSTD, arg); - } else if (go->board_info->sensor_flags & GO7007_SENSOR_TV) - *std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM; - else - *std = 0; - return 0; - } - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *inp = arg; - int index; - - if (inp->index >= go->board_info->num_inputs) - return -EINVAL; - index = inp->index; - memset(inp, 0, sizeof(*inp)); - inp->index = index; - strncpy(inp->name, go->board_info->inputs[index].name, - sizeof(inp->name)); - /* If this board has a tuner, it will be the last input */ - if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) && - index == go->board_info->num_inputs - 1) - inp->type = V4L2_INPUT_TYPE_TUNER; - else - inp->type = V4L2_INPUT_TYPE_CAMERA; - inp->audioset = 0; - inp->tuner = 0; - if (go->board_info->sensor_flags & GO7007_SENSOR_TV) - inp->std = V4L2_STD_NTSC | V4L2_STD_PAL | - V4L2_STD_SECAM; - else - inp->std = 0; - return 0; - } - case VIDIOC_G_INPUT: - { - int *input = arg; - - *input = go->input; - return 0; - } - case VIDIOC_S_INPUT: - { - int *input = arg; - - if (*input >= go->board_info->num_inputs) - return -EINVAL; - if (go->streaming) - return -EBUSY; - go->input = *input; - if (go->i2c_adapter_online) { - i2c_clients_command(&go->i2c_adapter, VIDIOC_S_INPUT, - &go->board_info->inputs[*input].video_input); - i2c_clients_command(&go->i2c_adapter, VIDIOC_S_AUDIO, - &go->board_info->inputs[*input].audio_input); - } - return 0; - } - case VIDIOC_G_TUNER: - { - struct v4l2_tuner *t = arg; - - if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER)) - return -EINVAL; - if (t->index != 0) - return -EINVAL; - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, VIDIOC_G_TUNER, arg); - t->index = 0; - return 0; - } - case VIDIOC_S_TUNER: - { - struct v4l2_tuner *t = arg; - - if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER)) - return -EINVAL; - if (t->index != 0) - return -EINVAL; - if (!go->i2c_adapter_online) - return -EIO; - switch (go->board_id) { - case GO7007_BOARDID_PX_TV402U_NA: - case GO7007_BOARDID_PX_TV402U_JP: - /* No selectable options currently */ - if (t->audmode != V4L2_TUNER_MODE_STEREO) - return -EINVAL; - break; - } - i2c_clients_command(&go->i2c_adapter, VIDIOC_S_TUNER, arg); - return 0; - } - case VIDIOC_G_FREQUENCY: - { - struct v4l2_frequency *f = arg; - - if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER)) - return -EINVAL; - if (!go->i2c_adapter_online) - return -EIO; - memset(f, 0, sizeof(*f)); - f->type = V4L2_TUNER_ANALOG_TV; - i2c_clients_command(&go->i2c_adapter, VIDIOC_G_FREQUENCY, arg); - return 0; - } - case VIDIOC_S_FREQUENCY: - { - if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER)) - return -EINVAL; - if (!go->i2c_adapter_online) - return -EIO; - i2c_clients_command(&go->i2c_adapter, VIDIOC_S_FREQUENCY, arg); - return 0; - } - case VIDIOC_CROPCAP: - { - struct v4l2_cropcap *cropcap = arg; - - if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(cropcap, 0, sizeof(*cropcap)); - cropcap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - /* These specify the raw input of the sensor */ - switch (go->standard) { - case GO7007_STD_NTSC: - cropcap->bounds.top = 0; - cropcap->bounds.left = 0; - cropcap->bounds.width = 720; - cropcap->bounds.height = 480; - cropcap->defrect.top = 0; - cropcap->defrect.left = 0; - cropcap->defrect.width = 720; - cropcap->defrect.height = 480; - break; - case GO7007_STD_PAL: - cropcap->bounds.top = 0; - cropcap->bounds.left = 0; - cropcap->bounds.width = 720; - cropcap->bounds.height = 576; - cropcap->defrect.top = 0; - cropcap->defrect.left = 0; - cropcap->defrect.width = 720; - cropcap->defrect.height = 576; - break; - case GO7007_STD_OTHER: - cropcap->bounds.top = 0; - cropcap->bounds.left = 0; - cropcap->bounds.width = go->board_info->sensor_width; - cropcap->bounds.height = go->board_info->sensor_height; - cropcap->defrect.top = 0; - cropcap->defrect.left = 0; - cropcap->defrect.width = go->board_info->sensor_width; - cropcap->defrect.height = go->board_info->sensor_height; - break; - } - - return 0; - } - case VIDIOC_G_CROP: - { - struct v4l2_crop *crop = arg; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - memset(crop, 0, sizeof(*crop)); - crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - /* These specify the raw input of the sensor */ - switch (go->standard) { - case GO7007_STD_NTSC: - crop->c.top = 0; - crop->c.left = 0; - crop->c.width = 720; - crop->c.height = 480; - break; - case GO7007_STD_PAL: - crop->c.top = 0; - crop->c.left = 0; - crop->c.width = 720; - crop->c.height = 576; - break; - case GO7007_STD_OTHER: - crop->c.top = 0; - crop->c.left = 0; - crop->c.width = go->board_info->sensor_width; - crop->c.height = go->board_info->sensor_height; - break; - } - - return 0; - } - case VIDIOC_S_CROP: - { - struct v4l2_crop *crop = arg; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return 0; - } - case VIDIOC_G_JPEGCOMP: - { - struct v4l2_jpegcompression *params = arg; - - memset(params, 0, sizeof(*params)); - params->quality = 50; /* ?? */ - params->jpeg_markers = V4L2_JPEG_MARKER_DHT | - V4L2_JPEG_MARKER_DQT; - - return 0; - } - case VIDIOC_S_JPEGCOMP: - { - struct v4l2_jpegcompression *params = arg; - - if (params->quality != 50 || - params->jpeg_markers != (V4L2_JPEG_MARKER_DHT | - V4L2_JPEG_MARKER_DQT)) - return -EINVAL; - return 0; - } - /* Temporary ioctls for controlling compression characteristics */ - case GO7007IOC_S_BITRATE: - { - int *bitrate = arg; - - if (go->streaming) - return -EINVAL; - /* Upper bound is kind of arbitrary here */ - if (*bitrate < 64000 || *bitrate > 10000000) - return -EINVAL; - go->bitrate = *bitrate; - return 0; - } - case GO7007IOC_G_BITRATE: - { - int *bitrate = arg; - - *bitrate = go->bitrate; - return 0; - } - case GO7007IOC_S_COMP_PARAMS: - { - struct go7007_comp_params *comp = arg; - - if (go->format == GO7007_FORMAT_MJPEG) - return -EINVAL; - if (comp->gop_size > 0) - go->gop_size = comp->gop_size; - else - go->gop_size = go->sensor_framerate / 1000; - if (go->gop_size != 15) - go->dvd_mode = 0; - /*go->ipb = comp->max_b_frames > 0;*/ /* completely untested */ - if (go->board_info->sensor_flags & GO7007_SENSOR_TV) { - switch (comp->aspect_ratio) { - case GO7007_ASPECT_RATIO_4_3_NTSC: - case GO7007_ASPECT_RATIO_4_3_PAL: - go->aspect_ratio = GO7007_RATIO_4_3; - break; - case GO7007_ASPECT_RATIO_16_9_NTSC: - case GO7007_ASPECT_RATIO_16_9_PAL: - go->aspect_ratio = GO7007_RATIO_16_9; - break; - default: - go->aspect_ratio = GO7007_RATIO_1_1; - break; - } - } - if (comp->flags & GO7007_COMP_OMIT_SEQ_HEADER) { - go->dvd_mode = 0; - go->seq_header_enable = 0; - } else { - go->seq_header_enable = 1; - } - /* fall-through */ - } - case GO7007IOC_G_COMP_PARAMS: - { - struct go7007_comp_params *comp = arg; - - if (go->format == GO7007_FORMAT_MJPEG) - return -EINVAL; - memset(comp, 0, sizeof(*comp)); - comp->gop_size = go->gop_size; - comp->max_b_frames = go->ipb ? 2 : 0; - switch (go->aspect_ratio) { - case GO7007_RATIO_4_3: - if (go->standard == GO7007_STD_NTSC) - comp->aspect_ratio = - GO7007_ASPECT_RATIO_4_3_NTSC; - else - comp->aspect_ratio = - GO7007_ASPECT_RATIO_4_3_PAL; - break; - case GO7007_RATIO_16_9: - if (go->standard == GO7007_STD_NTSC) - comp->aspect_ratio = - GO7007_ASPECT_RATIO_16_9_NTSC; - else - comp->aspect_ratio = - GO7007_ASPECT_RATIO_16_9_PAL; - break; - default: - comp->aspect_ratio = GO7007_ASPECT_RATIO_1_1; - break; - } - if (go->closed_gop) - comp->flags |= GO7007_COMP_CLOSED_GOP; - if (!go->seq_header_enable) - comp->flags |= GO7007_COMP_OMIT_SEQ_HEADER; - return 0; - } - case GO7007IOC_S_MPEG_PARAMS: - { - struct go7007_mpeg_params *mpeg = arg; - - if (go->format != GO7007_FORMAT_MPEG1 && - go->format != GO7007_FORMAT_MPEG2 && - go->format != GO7007_FORMAT_MPEG4) - return -EINVAL; - - if (mpeg->flags & GO7007_MPEG_FORCE_DVD_MODE) { - go->format = GO7007_FORMAT_MPEG2; - go->bitrate = 9800000; - go->gop_size = 15; - go->pali = 0x48; - go->closed_gop = 1; - go->repeat_seqhead = 0; - go->seq_header_enable = 1; - go->gop_header_enable = 1; - go->dvd_mode = 1; - } else { - switch (mpeg->mpeg_video_standard) { - case GO7007_MPEG_VIDEO_MPEG1: - go->format = GO7007_FORMAT_MPEG1; - go->pali = 0; - break; - case GO7007_MPEG_VIDEO_MPEG2: - go->format = GO7007_FORMAT_MPEG2; - if (mpeg->pali >> 24 == 2) - go->pali = mpeg->pali & 0xff; - else - go->pali = 0x48; - break; - case GO7007_MPEG_VIDEO_MPEG4: - go->format = GO7007_FORMAT_MPEG4; - if (mpeg->pali >> 24 == 4) - go->pali = mpeg->pali & 0xff; - else - go->pali = 0xf5; - break; - default: - return -EINVAL; - } - go->gop_header_enable = - mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER - ? 0 : 1; - if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER) - go->repeat_seqhead = 1; - else - go->repeat_seqhead = 0; - go->dvd_mode = 0; - } - /* fall-through */ - } - case GO7007IOC_G_MPEG_PARAMS: - { - struct go7007_mpeg_params *mpeg = arg; - - memset(mpeg, 0, sizeof(*mpeg)); - switch (go->format) { - case GO7007_FORMAT_MPEG1: - mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG1; - mpeg->pali = 0; - break; - case GO7007_FORMAT_MPEG2: - mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG2; - mpeg->pali = GO7007_MPEG_PROFILE(2, go->pali); - break; - case GO7007_FORMAT_MPEG4: - mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG4; - mpeg->pali = GO7007_MPEG_PROFILE(4, go->pali); - break; - default: - return -EINVAL; - } - if (!go->gop_header_enable) - mpeg->flags |= GO7007_MPEG_OMIT_GOP_HEADER; - if (go->repeat_seqhead) - mpeg->flags |= GO7007_MPEG_REPEAT_SEQHEADER; - if (go->dvd_mode) - mpeg->flags |= GO7007_MPEG_FORCE_DVD_MODE; - return 0; - } - case GO7007IOC_S_MD_PARAMS: - { - struct go7007_md_params *mdp = arg; - - if (mdp->region > 3) - return -EINVAL; - if (mdp->trigger > 0) { - go->modet[mdp->region].pixel_threshold = - mdp->pixel_threshold >> 1; - go->modet[mdp->region].motion_threshold = - mdp->motion_threshold >> 1; - go->modet[mdp->region].mb_threshold = - mdp->trigger >> 1; - go->modet[mdp->region].enable = 1; - } else - go->modet[mdp->region].enable = 0; - /* fall-through */ - } - case GO7007IOC_G_MD_PARAMS: - { - struct go7007_md_params *mdp = arg; - int region = mdp->region; - - if (mdp->region > 3) - return -EINVAL; - memset(mdp, 0, sizeof(struct go7007_md_params)); - mdp->region = region; - if (!go->modet[region].enable) - return 0; - mdp->pixel_threshold = - (go->modet[region].pixel_threshold << 1) + 1; - mdp->motion_threshold = - (go->modet[region].motion_threshold << 1) + 1; - mdp->trigger = - (go->modet[region].mb_threshold << 1) + 1; - return 0; - } - case GO7007IOC_S_MD_REGION: - { - struct go7007_md_region *region = arg; - - if (region->region < 1 || region->region > 3) - return -EINVAL; - return clip_to_modet_map(go, region->region, region->clips); - } - default: - printk(KERN_DEBUG "go7007: unsupported ioctl %d\n", cmd); - return -ENOIOCTLCMD; - } - return 0; - -unlock_and_return: - up(&gofh->lock); - return retval; -} - -static int go7007_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct go7007_file *gofh = file->private_data; - - if (gofh->go->status != STATUS_ONLINE) - return -EIO; - - return video_usercopy(inode, file, cmd, arg, go7007_do_ioctl); -} - -static ssize_t go7007_read(struct file *file, char __user *data, - size_t count, loff_t *ppos) -{ - return -EINVAL; -} - -static void go7007_vm_open(struct vm_area_struct *vma) -{ - struct go7007_buffer *gobuf = vma->vm_private_data; - - ++gobuf->mapped; -} - -static void go7007_vm_close(struct vm_area_struct *vma) -{ - struct go7007_buffer *gobuf = vma->vm_private_data; - unsigned long flags; - - if (--gobuf->mapped == 0) { - spin_lock_irqsave(&gobuf->go->spinlock, flags); - deactivate_buffer(gobuf); - spin_unlock_irqrestore(&gobuf->go->spinlock, flags); - } -} - -/* Copied from videobuf-dma-sg.c */ -static int go7007_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -{ - struct page *page; - - page = alloc_page(GFP_USER | __GFP_DMA32); - if (!page) - return VM_FAULT_OOM; - clear_user_page(page_address(page), (unsigned long)vmf->virtual_address, - page); - vmf->page = page; - return 0; -} - -static struct vm_operations_struct go7007_vm_ops = { - .open = go7007_vm_open, - .close = go7007_vm_close, - .fault = go7007_vm_fault, -}; - -static int go7007_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct go7007_file *gofh = file->private_data; - unsigned int index; - - if (gofh->go->status != STATUS_ONLINE) - return -EIO; - if (!(vma->vm_flags & VM_SHARED)) - return -EINVAL; /* only support VM_SHARED mapping */ - if (vma->vm_end - vma->vm_start != GO7007_BUF_SIZE) - return -EINVAL; /* must map exactly one full buffer */ - down(&gofh->lock); - index = vma->vm_pgoff / GO7007_BUF_PAGES; - if (index >= gofh->buf_count) { - up(&gofh->lock); - return -EINVAL; /* trying to map beyond requested buffers */ - } - if (index * GO7007_BUF_PAGES != vma->vm_pgoff) { - up(&gofh->lock); - return -EINVAL; /* offset is not aligned on buffer boundary */ - } - if (gofh->bufs[index].mapped > 0) { - up(&gofh->lock); - return -EBUSY; - } - gofh->bufs[index].mapped = 1; - gofh->bufs[index].user_addr = vma->vm_start; - vma->vm_ops = &go7007_vm_ops; - vma->vm_flags |= VM_DONTEXPAND; - vma->vm_flags &= ~VM_IO; - vma->vm_private_data = &gofh->bufs[index]; - up(&gofh->lock); - return 0; -} - -static unsigned int go7007_poll(struct file *file, poll_table *wait) -{ - struct go7007_file *gofh = file->private_data; - struct go7007_buffer *gobuf; - - if (list_empty(&gofh->go->stream)) - return POLLERR; - gobuf = list_entry(gofh->go->stream.next, struct go7007_buffer, stream); - poll_wait(file, &gofh->go->frame_waitq, wait); - if (gobuf->state == BUF_STATE_DONE) - return POLLIN | POLLRDNORM; - return 0; -} - -static void go7007_vfl_release(struct video_device *vfd) -{ - struct go7007 *go = video_get_drvdata(vfd); - - video_device_release(vfd); - if (--go->ref_count == 0) - kfree(go); -} - -static struct file_operations go7007_fops = { - .owner = THIS_MODULE, - .open = go7007_open, - .release = go7007_release, - .ioctl = go7007_ioctl, - .llseek = no_llseek, - .read = go7007_read, - .mmap = go7007_mmap, - .poll = go7007_poll, -}; - -static struct video_device go7007_template = { - .name = "go7007", - .vfl_type = VID_TYPE_CAPTURE, - .fops = &go7007_fops, - .minor = -1, - .release = go7007_vfl_release, -}; - -int go7007_v4l2_init(struct go7007 *go) -{ - int rv; - - go->video_dev = video_device_alloc(); - if (go->video_dev == NULL) - return -ENOMEM; - memcpy(go->video_dev, &go7007_template, sizeof(go7007_template)); - go->video_dev->parent = go->dev; - rv = video_register_device(go->video_dev, VFL_TYPE_GRABBER, -1); - if (rv < 0) { - video_device_release(go->video_dev); - go->video_dev = NULL; - return rv; - } - video_set_drvdata(go->video_dev, go); - ++go->ref_count; - - return 0; -} - -void go7007_v4l2_remove(struct go7007 *go) -{ - unsigned long flags; - - down(&go->hw_lock); - if (go->streaming) { - go->streaming = 0; - go7007_stream_stop(go); - spin_lock_irqsave(&go->spinlock, flags); - abort_queued(go); - spin_unlock_irqrestore(&go->spinlock, flags); - } - up(&go->hw_lock); - if (go->video_dev) - video_unregister_device(go->video_dev); -} |