diff options
Diffstat (limited to 'drivers/media/video/v4l1-compat.c')
| -rw-r--r-- | drivers/media/video/v4l1-compat.c | 1277 |
1 files changed, 0 insertions, 1277 deletions
diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c deleted file mode 100644 index d4ac751036a..00000000000 --- a/drivers/media/video/v4l1-compat.c +++ /dev/null @@ -1,1277 +0,0 @@ -/* - * - * Video for Linux Two - * Backward Compatibility Layer - * - * Support subroutines for providing V4L2 drivers with backward - * compatibility with applications using the old API. - * - * 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. - * - * Author: Bill Dirks <bill@thedirks.org> - * et al. - * - */ - - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/videodev.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> - -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/pgtable.h> - -static unsigned int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "enable debug messages"); -MODULE_AUTHOR("Bill Dirks"); -MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers."); -MODULE_LICENSE("GPL"); - -#define dprintk(fmt, arg...) \ - do { \ - if (debug) \ - printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg);\ - } while (0) - -/* - * I O C T L T R A N S L A T I O N - * - * From here on down is the code for translating the numerous - * ioctl commands from the old API to the new API. - */ - -static int -get_v4l_control(struct file *file, - int cid, - v4l2_kioctl drv) -{ - struct v4l2_queryctrl qctrl2; - struct v4l2_control ctrl2; - int err; - - qctrl2.id = cid; - err = drv(file, VIDIOC_QUERYCTRL, &qctrl2); - if (err < 0) - dprintk("VIDIOC_QUERYCTRL: %d\n", err); - if (err == 0 && !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) { - ctrl2.id = qctrl2.id; - err = drv(file, VIDIOC_G_CTRL, &ctrl2); - if (err < 0) { - dprintk("VIDIOC_G_CTRL: %d\n", err); - return 0; - } - return DIV_ROUND_CLOSEST((ctrl2.value-qctrl2.minimum) * 65535, - qctrl2.maximum - qctrl2.minimum); - } - return 0; -} - -static int -set_v4l_control(struct file *file, - int cid, - int value, - v4l2_kioctl drv) -{ - struct v4l2_queryctrl qctrl2; - struct v4l2_control ctrl2; - int err; - - qctrl2.id = cid; - err = drv(file, VIDIOC_QUERYCTRL, &qctrl2); - if (err < 0) - dprintk("VIDIOC_QUERYCTRL: %d\n", err); - if (err == 0 && - !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) && - !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) { - if (value < 0) - value = 0; - if (value > 65535) - value = 65535; - if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN) - value = 65535; - ctrl2.id = qctrl2.id; - ctrl2.value = - (value * (qctrl2.maximum - qctrl2.minimum) - + 32767) - / 65535; - ctrl2.value += qctrl2.minimum; - err = drv(file, VIDIOC_S_CTRL, &ctrl2); - if (err < 0) - dprintk("VIDIOC_S_CTRL: %d\n", err); - } - return 0; -} - -/* ----------------------------------------------------------------- */ - -static const unsigned int palette2pixelformat[] = { - [VIDEO_PALETTE_GREY] = V4L2_PIX_FMT_GREY, - [VIDEO_PALETTE_RGB555] = V4L2_PIX_FMT_RGB555, - [VIDEO_PALETTE_RGB565] = V4L2_PIX_FMT_RGB565, - [VIDEO_PALETTE_RGB24] = V4L2_PIX_FMT_BGR24, - [VIDEO_PALETTE_RGB32] = V4L2_PIX_FMT_BGR32, - /* yuv packed pixel */ - [VIDEO_PALETTE_YUYV] = V4L2_PIX_FMT_YUYV, - [VIDEO_PALETTE_YUV422] = V4L2_PIX_FMT_YUYV, - [VIDEO_PALETTE_UYVY] = V4L2_PIX_FMT_UYVY, - /* yuv planar */ - [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410, - [VIDEO_PALETTE_YUV420] = V4L2_PIX_FMT_YUV420, - [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420, - [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P, - [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P, -}; - -static unsigned int __pure -palette_to_pixelformat(unsigned int palette) -{ - if (palette < ARRAY_SIZE(palette2pixelformat)) - return palette2pixelformat[palette]; - else - return 0; -} - -static unsigned int __attribute_const__ -pixelformat_to_palette(unsigned int pixelformat) -{ - int palette = 0; - switch (pixelformat) { - case V4L2_PIX_FMT_GREY: - palette = VIDEO_PALETTE_GREY; - break; - case V4L2_PIX_FMT_RGB555: - palette = VIDEO_PALETTE_RGB555; - break; - case V4L2_PIX_FMT_RGB565: - palette = VIDEO_PALETTE_RGB565; - break; - case V4L2_PIX_FMT_BGR24: - palette = VIDEO_PALETTE_RGB24; - break; - case V4L2_PIX_FMT_BGR32: - palette = VIDEO_PALETTE_RGB32; - break; - /* yuv packed pixel */ - case V4L2_PIX_FMT_YUYV: - palette = VIDEO_PALETTE_YUYV; - break; - case V4L2_PIX_FMT_UYVY: - palette = VIDEO_PALETTE_UYVY; - break; - /* yuv planar */ - case V4L2_PIX_FMT_YUV410: - palette = VIDEO_PALETTE_YUV420; - break; - case V4L2_PIX_FMT_YUV420: - palette = VIDEO_PALETTE_YUV420; - break; - case V4L2_PIX_FMT_YUV411P: - palette = VIDEO_PALETTE_YUV411P; - break; - case V4L2_PIX_FMT_YUV422P: - palette = VIDEO_PALETTE_YUV422P; - break; - } - return palette; -} - -/* ----------------------------------------------------------------- */ - -static int poll_one(struct file *file, struct poll_wqueues *pwq) -{ - int retval = 1; - poll_table *table; - - poll_initwait(pwq); - table = &pwq->pt; - for (;;) { - int mask; - mask = file->f_op->poll(file, table); - if (mask & POLLIN) - break; - table = NULL; - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } - poll_schedule(pwq, TASK_INTERRUPTIBLE); - } - poll_freewait(pwq); - return retval; -} - -static int count_inputs( - struct file *file, - v4l2_kioctl drv) -{ - struct v4l2_input input2; - int i; - - for (i = 0;; i++) { - memset(&input2, 0, sizeof(input2)); - input2.index = i; - if (0 != drv(file, VIDIOC_ENUMINPUT, &input2)) - break; - } - return i; -} - -static int check_size( - struct file *file, - v4l2_kioctl drv, - int *maxw, - int *maxh) -{ - struct v4l2_fmtdesc desc2; - struct v4l2_format fmt2; - - memset(&desc2, 0, sizeof(desc2)); - memset(&fmt2, 0, sizeof(fmt2)); - - desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (0 != drv(file, VIDIOC_ENUM_FMT, &desc2)) - goto done; - - fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt2.fmt.pix.width = 10000; - fmt2.fmt.pix.height = 10000; - fmt2.fmt.pix.pixelformat = desc2.pixelformat; - if (0 != drv(file, VIDIOC_TRY_FMT, &fmt2)) - goto done; - - *maxw = fmt2.fmt.pix.width; - *maxh = fmt2.fmt.pix.height; - -done: - return 0; -} - -/* ----------------------------------------------------------------- */ - -static noinline long v4l1_compat_get_capabilities( - struct video_capability *cap, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_framebuffer fbuf; - struct v4l2_capability *cap2; - - cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL); - if (!cap2) { - err = -ENOMEM; - return err; - } - memset(cap, 0, sizeof(*cap)); - memset(&fbuf, 0, sizeof(fbuf)); - - err = drv(file, VIDIOC_QUERYCAP, cap2); - if (err < 0) { - dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %ld\n", err); - goto done; - } - if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) { - err = drv(file, VIDIOC_G_FBUF, &fbuf); - if (err < 0) { - dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %ld\n", err); - memset(&fbuf, 0, sizeof(fbuf)); - } - err = 0; - } - - memcpy(cap->name, cap2->card, - min(sizeof(cap->name), sizeof(cap2->card))); - cap->name[sizeof(cap->name) - 1] = 0; - if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE) - cap->type |= VID_TYPE_CAPTURE; - if (cap2->capabilities & V4L2_CAP_TUNER) - cap->type |= VID_TYPE_TUNER; - if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE) - cap->type |= VID_TYPE_TELETEXT; - if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) - cap->type |= VID_TYPE_OVERLAY; - if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING) - cap->type |= VID_TYPE_CLIPPING; - - cap->channels = count_inputs(file, drv); - check_size(file, drv, - &cap->maxwidth, &cap->maxheight); - cap->audios = 0; /* FIXME */ - cap->minwidth = 48; /* FIXME */ - cap->minheight = 32; /* FIXME */ - -done: - kfree(cap2); - return err; -} - -static noinline long v4l1_compat_get_frame_buffer( - struct video_buffer *buffer, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_framebuffer fbuf; - - memset(buffer, 0, sizeof(*buffer)); - memset(&fbuf, 0, sizeof(fbuf)); - - err = drv(file, VIDIOC_G_FBUF, &fbuf); - if (err < 0) { - dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %ld\n", err); - goto done; - } - buffer->base = fbuf.base; - buffer->height = fbuf.fmt.height; - buffer->width = fbuf.fmt.width; - - switch (fbuf.fmt.pixelformat) { - case V4L2_PIX_FMT_RGB332: - buffer->depth = 8; - break; - case V4L2_PIX_FMT_RGB555: - buffer->depth = 15; - break; - case V4L2_PIX_FMT_RGB565: - buffer->depth = 16; - break; - case V4L2_PIX_FMT_BGR24: - buffer->depth = 24; - break; - case V4L2_PIX_FMT_BGR32: - buffer->depth = 32; - break; - default: - buffer->depth = 0; - } - if (fbuf.fmt.bytesperline) { - buffer->bytesperline = fbuf.fmt.bytesperline; - if (!buffer->depth && buffer->width) - buffer->depth = ((fbuf.fmt.bytesperline<<3) - + (buffer->width-1)) - / buffer->width; - } else { - buffer->bytesperline = - (buffer->width * buffer->depth + 7) & 7; - buffer->bytesperline >>= 3; - } -done: - return err; -} - -static noinline long v4l1_compat_set_frame_buffer( - struct video_buffer *buffer, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_framebuffer fbuf; - - memset(&fbuf, 0, sizeof(fbuf)); - fbuf.base = buffer->base; - fbuf.fmt.height = buffer->height; - fbuf.fmt.width = buffer->width; - switch (buffer->depth) { - case 8: - fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332; - break; - case 15: - fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555; - break; - case 16: - fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565; - break; - case 24: - fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24; - break; - case 32: - fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32; - break; - } - fbuf.fmt.bytesperline = buffer->bytesperline; - err = drv(file, VIDIOC_S_FBUF, &fbuf); - if (err < 0) - dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %ld\n", err); - return err; -} - -static noinline long v4l1_compat_get_win_cap_dimensions( - struct video_window *win, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_format *fmt; - - fmt = kzalloc(sizeof(*fmt), GFP_KERNEL); - if (!fmt) { - err = -ENOMEM; - return err; - } - memset(win, 0, sizeof(*win)); - - fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY; - err = drv(file, VIDIOC_G_FMT, fmt); - if (err < 0) - dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %ld\n", err); - if (err == 0) { - win->x = fmt->fmt.win.w.left; - win->y = fmt->fmt.win.w.top; - win->width = fmt->fmt.win.w.width; - win->height = fmt->fmt.win.w.height; - win->chromakey = fmt->fmt.win.chromakey; - win->clips = NULL; - win->clipcount = 0; - goto done; - } - - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_G_FMT, fmt); - if (err < 0) { - dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %ld\n", err); - goto done; - } - win->x = 0; - win->y = 0; - win->width = fmt->fmt.pix.width; - win->height = fmt->fmt.pix.height; - win->chromakey = 0; - win->clips = NULL; - win->clipcount = 0; -done: - kfree(fmt); - return err; -} - -static noinline long v4l1_compat_set_win_cap_dimensions( - struct video_window *win, - struct file *file, - v4l2_kioctl drv) -{ - long err, err1, err2; - struct v4l2_format *fmt; - - fmt = kzalloc(sizeof(*fmt), GFP_KERNEL); - if (!fmt) { - err = -ENOMEM; - return err; - } - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - drv(file, VIDIOC_STREAMOFF, &fmt->type); - err1 = drv(file, VIDIOC_G_FMT, fmt); - if (err1 < 0) - dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %ld\n", err1); - if (err1 == 0) { - fmt->fmt.pix.width = win->width; - fmt->fmt.pix.height = win->height; - fmt->fmt.pix.field = V4L2_FIELD_ANY; - fmt->fmt.pix.bytesperline = 0; - err = drv(file, VIDIOC_S_FMT, fmt); - if (err < 0) - dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %ld\n", - err); - win->width = fmt->fmt.pix.width; - win->height = fmt->fmt.pix.height; - } - - memset(fmt, 0, sizeof(*fmt)); - fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY; - fmt->fmt.win.w.left = win->x; - fmt->fmt.win.w.top = win->y; - fmt->fmt.win.w.width = win->width; - fmt->fmt.win.w.height = win->height; - fmt->fmt.win.chromakey = win->chromakey; - fmt->fmt.win.clips = (void __user *)win->clips; - fmt->fmt.win.clipcount = win->clipcount; - err2 = drv(file, VIDIOC_S_FMT, fmt); - if (err2 < 0) - dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %ld\n", err2); - - if (err1 != 0 && err2 != 0) - err = err1; - else - err = 0; - kfree(fmt); - return err; -} - -static noinline long v4l1_compat_turn_preview_on_off( - int *on, - struct file *file, - v4l2_kioctl drv) -{ - long err; - enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (0 == *on) { - /* dirty hack time. But v4l1 has no STREAMOFF - * equivalent in the API, and this one at - * least comes close ... */ - drv(file, VIDIOC_STREAMOFF, &captype); - } - err = drv(file, VIDIOC_OVERLAY, on); - if (err < 0) - dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %ld\n", err); - return err; -} - -static noinline long v4l1_compat_get_input_info( - struct video_channel *chan, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_input input2; - v4l2_std_id sid; - - memset(&input2, 0, sizeof(input2)); - input2.index = chan->channel; - err = drv(file, VIDIOC_ENUMINPUT, &input2); - if (err < 0) { - dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: " - "channel=%d err=%ld\n", chan->channel, err); - goto done; - } - chan->channel = input2.index; - memcpy(chan->name, input2.name, - min(sizeof(chan->name), sizeof(input2.name))); - chan->name[sizeof(chan->name) - 1] = 0; - chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0; - chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0; - switch (input2.type) { - case V4L2_INPUT_TYPE_TUNER: - chan->type = VIDEO_TYPE_TV; - break; - default: - case V4L2_INPUT_TYPE_CAMERA: - chan->type = VIDEO_TYPE_CAMERA; - break; - } - chan->norm = 0; - /* Note: G_STD might not be present for radio receivers, - * so we should ignore any errors. */ - if (drv(file, VIDIOC_G_STD, &sid) == 0) { - if (sid & V4L2_STD_PAL) - chan->norm = VIDEO_MODE_PAL; - if (sid & V4L2_STD_NTSC) - chan->norm = VIDEO_MODE_NTSC; - if (sid & V4L2_STD_SECAM) - chan->norm = VIDEO_MODE_SECAM; - if (sid == V4L2_STD_ALL) - chan->norm = VIDEO_MODE_AUTO; - } -done: - return err; -} - -static noinline long v4l1_compat_set_input( - struct video_channel *chan, - struct file *file, - v4l2_kioctl drv) -{ - long err; - v4l2_std_id sid = 0; - - err = drv(file, VIDIOC_S_INPUT, &chan->channel); - if (err < 0) - dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err); - switch (chan->norm) { - case VIDEO_MODE_PAL: - sid = V4L2_STD_PAL; - break; - case VIDEO_MODE_NTSC: - sid = V4L2_STD_NTSC; - break; - case VIDEO_MODE_SECAM: - sid = V4L2_STD_SECAM; - break; - case VIDEO_MODE_AUTO: - sid = V4L2_STD_ALL; - break; - } - if (0 != sid) { - err = drv(file, VIDIOC_S_STD, &sid); - if (err < 0) - dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err); - } - return err; -} - -static noinline long v4l1_compat_get_picture( - struct video_picture *pict, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_format *fmt; - - fmt = kzalloc(sizeof(*fmt), GFP_KERNEL); - if (!fmt) { - err = -ENOMEM; - return err; - } - - pict->brightness = get_v4l_control(file, - V4L2_CID_BRIGHTNESS, drv); - pict->hue = get_v4l_control(file, - V4L2_CID_HUE, drv); - pict->contrast = get_v4l_control(file, - V4L2_CID_CONTRAST, drv); - pict->colour = get_v4l_control(file, - V4L2_CID_SATURATION, drv); - pict->whiteness = get_v4l_control(file, - V4L2_CID_WHITENESS, drv); - - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_G_FMT, fmt); - if (err < 0) { - dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err); - goto done; - } - - if (fmt->fmt.pix.width) - { - pict->depth = ((fmt->fmt.pix.bytesperline << 3) - + (fmt->fmt.pix.width - 1)) - / fmt->fmt.pix.width; - } else { - err = -EINVAL; - goto done; - } - - pict->palette = pixelformat_to_palette( - fmt->fmt.pix.pixelformat); -done: - kfree(fmt); - return err; -} - -static noinline long v4l1_compat_set_picture( - struct video_picture *pict, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_framebuffer fbuf; - int mem_err = 0, ovl_err = 0; - struct v4l2_format *fmt; - - fmt = kzalloc(sizeof(*fmt), GFP_KERNEL); - if (!fmt) { - err = -ENOMEM; - return err; - } - memset(&fbuf, 0, sizeof(fbuf)); - - set_v4l_control(file, - V4L2_CID_BRIGHTNESS, pict->brightness, drv); - set_v4l_control(file, - V4L2_CID_HUE, pict->hue, drv); - set_v4l_control(file, - V4L2_CID_CONTRAST, pict->contrast, drv); - set_v4l_control(file, - V4L2_CID_SATURATION, pict->colour, drv); - set_v4l_control(file, - V4L2_CID_WHITENESS, pict->whiteness, drv); - /* - * V4L1 uses this ioctl to set both memory capture and overlay - * pixel format, while V4L2 has two different ioctls for this. - * Some cards may not support one or the other, and may support - * different pixel formats for memory vs overlay. - */ - - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_G_FMT, fmt); - /* If VIDIOC_G_FMT failed, then the driver likely doesn't - support memory capture. Trying to set the memory capture - parameters would be pointless. */ - if (err < 0) { - dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err); - mem_err = -1000; /* didn't even try */ - } else if (fmt->fmt.pix.pixelformat != - palette_to_pixelformat(pict->palette)) { - fmt->fmt.pix.pixelformat = palette_to_pixelformat( - pict->palette); - mem_err = drv(file, VIDIOC_S_FMT, fmt); - if (mem_err < 0) - dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n", - mem_err); - } - - err = drv(file, VIDIOC_G_FBUF, &fbuf); - /* If VIDIOC_G_FBUF failed, then the driver likely doesn't - support overlay. Trying to set the overlay parameters - would be quite pointless. */ - if (err < 0) { - dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err); - ovl_err = -1000; /* didn't even try */ - } else if (fbuf.fmt.pixelformat != - palette_to_pixelformat(pict->palette)) { - fbuf.fmt.pixelformat = palette_to_pixelformat( - pict->palette); - ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf); - if (ovl_err < 0) - dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n", - ovl_err); - } - if (ovl_err < 0 && mem_err < 0) { - /* ioctl failed, couldn't set either parameter */ - if (mem_err != -1000) - err = mem_err; - else if (ovl_err == -EPERM) - err = 0; - else - err = ovl_err; - } else - err = 0; - kfree(fmt); - return err; -} - -static noinline long v4l1_compat_get_tuner( - struct video_tuner *tun, - struct file *file, - v4l2_kioctl drv) -{ - long err; - int i; - struct v4l2_tuner tun2; - struct v4l2_standard std2; - v4l2_std_id sid; - - memset(&tun2, 0, sizeof(tun2)); - err = drv(file, VIDIOC_G_TUNER, &tun2); - if (err < 0) { - dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err); - goto done; - } - memcpy(tun->name, tun2.name, - min(sizeof(tun->name), sizeof(tun2.name))); - tun->name[sizeof(tun->name) - 1] = 0; - tun->rangelow = tun2.rangelow; - tun->rangehigh = tun2.rangehigh; - tun->flags = 0; - tun->mode = VIDEO_MODE_AUTO; - - for (i = 0; i < 64; i++) { - memset(&std2, 0, sizeof(std2)); - std2.index = i; - if (0 != drv(file, VIDIOC_ENUMSTD, &std2)) - break; - if (std2.id & V4L2_STD_PAL) - tun->flags |= VIDEO_TUNER_PAL; - if (std2.id & V4L2_STD_NTSC) - tun->flags |= VIDEO_TUNER_NTSC; - if (std2.id & V4L2_STD_SECAM) - tun->flags |= VIDEO_TUNER_SECAM; - } - - /* Note: G_STD might not be present for radio receivers, - * so we should ignore any errors. */ - if (drv(file, VIDIOC_G_STD, &sid) == 0) { - if (sid & V4L2_STD_PAL) - tun->mode = VIDEO_MODE_PAL; - if (sid & V4L2_STD_NTSC) - tun->mode = VIDEO_MODE_NTSC; - if (sid & V4L2_STD_SECAM) - tun->mode = VIDEO_MODE_SECAM; - } - - if (tun2.capability & V4L2_TUNER_CAP_LOW) - tun->flags |= VIDEO_TUNER_LOW; - if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO) - tun->flags |= VIDEO_TUNER_STEREO_ON; - tun->signal = tun2.signal; -done: - return err; -} - -static noinline long v4l1_compat_select_tuner( - struct video_tuner *tun, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_tuner t;/*84 bytes on x86_64*/ - memset(&t, 0, sizeof(t)); - - t.index = tun->tuner; - - err = drv(file, VIDIOC_S_TUNER, &t); - if (err < 0) - dprintk("VIDIOCSTUNER / VIDIOC_S_TUNER: %ld\n", err); - return err; -} - -static noinline long v4l1_compat_get_frequency( - unsigned long *freq, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_frequency freq2; - memset(&freq2, 0, sizeof(freq2)); - - freq2.tuner = 0; - err = drv(file, VIDIOC_G_FREQUENCY, &freq2); - if (err < 0) - dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err); - if (0 == err) - *freq = freq2.frequency; - return err; -} - -static noinline long v4l1_compat_set_frequency( - unsigned long *freq, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_frequency freq2; - memset(&freq2, 0, sizeof(freq2)); - - drv(file, VIDIOC_G_FREQUENCY, &freq2); - freq2.frequency = *freq; - err = drv(file, VIDIOC_S_FREQUENCY, &freq2); - if (err < 0) - dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err); - return err; -} - -static noinline long v4l1_compat_get_audio( - struct video_audio *aud, - struct file *file, - v4l2_kioctl drv) -{ - long err; - int i; - struct v4l2_queryctrl qctrl2; - struct v4l2_audio aud2; - struct v4l2_tuner tun2; - memset(&aud2, 0, sizeof(aud2)); - - err = drv(file, VIDIOC_G_AUDIO, &aud2); - if (err < 0) { - dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err); - goto done; - } - memcpy(aud->name, aud2.name, - min(sizeof(aud->name), sizeof(aud2.name))); - aud->name[sizeof(aud->name) - 1] = 0; - aud->audio = aud2.index; - aud->flags = 0; - i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv); - if (i >= 0) { - aud->volume = i; - aud->flags |= VIDEO_AUDIO_VOLUME; - } - i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv); - if (i >= 0) { - aud->bass = i; - aud->flags |= VIDEO_AUDIO_BASS; - } - i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv); - if (i >= 0) { - aud->treble = i; - aud->flags |= VIDEO_AUDIO_TREBLE; - } - i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv); - if (i >= 0) { - aud->balance = i; - aud->flags |= VIDEO_AUDIO_BALANCE; - } - i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv); - if (i >= 0) { - if (i) - aud->flags |= VIDEO_AUDIO_MUTE; - aud->flags |= VIDEO_AUDIO_MUTABLE; - } - aud->step = 1; - qctrl2.id = V4L2_CID_AUDIO_VOLUME; - if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 && - !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) - aud->step = qctrl2.step; - aud->mode = 0; - - memset(&tun2, 0, sizeof(tun2)); - err = drv(file, VIDIOC_G_TUNER, &tun2); - if (err < 0) { - dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err); - err = 0; - goto done; - } - - if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2) - aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; - else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO) - aud->mode = VIDEO_SOUND_STEREO; - else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO) - aud->mode = VIDEO_SOUND_MONO; -done: - return err; -} - -static noinline long v4l1_compat_set_audio( - struct video_audio *aud, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_audio aud2; - struct v4l2_tuner tun2; - - memset(&aud2, 0, sizeof(aud2)); - memset(&tun2, 0, sizeof(tun2)); - - aud2.index = aud->audio; - err = drv(file, VIDIOC_S_AUDIO, &aud2); - if (err < 0) { - dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err); - goto done; - } - - set_v4l_control(file, V4L2_CID_AUDIO_VOLUME, - aud->volume, drv); - set_v4l_control(file, V4L2_CID_AUDIO_BASS, - aud->bass, drv); - set_v4l_control(file, V4L2_CID_AUDIO_TREBLE, - aud->treble, drv); - set_v4l_control(file, V4L2_CID_AUDIO_BALANCE, - aud->balance, drv); - set_v4l_control(file, V4L2_CID_AUDIO_MUTE, - !!(aud->flags & VIDEO_AUDIO_MUTE), drv); - - err = drv(file, VIDIOC_G_TUNER, &tun2); - if (err < 0) - dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err); - if (err == 0) { - switch (aud->mode) { - default: - case VIDEO_SOUND_MONO: - case VIDEO_SOUND_LANG1: - tun2.audmode = V4L2_TUNER_MODE_MONO; - break; - case VIDEO_SOUND_STEREO: - tun2.audmode = V4L2_TUNER_MODE_STEREO; - break; - case VIDEO_SOUND_LANG2: - tun2.audmode = V4L2_TUNER_MODE_LANG2; - break; - } - err = drv(file, VIDIOC_S_TUNER, &tun2); - if (err < 0) - dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err); - } - err = 0; -done: - return err; -} - -static noinline long v4l1_compat_capture_frame( - struct video_mmap *mm, - struct file *file, - v4l2_kioctl drv) -{ - long err; - enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE; - struct v4l2_buffer buf; - struct v4l2_format *fmt; - - fmt = kzalloc(sizeof(*fmt), GFP_KERNEL); - if (!fmt) { - err = -ENOMEM; - return err; - } - memset(&buf, 0, sizeof(buf)); - - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_G_FMT, fmt); - if (err < 0) { - dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err); - goto done; - } - if (mm->width != fmt->fmt.pix.width || - mm->height != fmt->fmt.pix.height || - palette_to_pixelformat(mm->format) != - fmt->fmt.pix.pixelformat) { - /* New capture format... */ - fmt->fmt.pix.width = mm->width; - fmt->fmt.pix.height = mm->height; - fmt->fmt.pix.pixelformat = - palette_to_pixelformat(mm->format); - fmt->fmt.pix.field = V4L2_FIELD_ANY; - fmt->fmt.pix.bytesperline = 0; - err = drv(file, VIDIOC_S_FMT, fmt); - if (err < 0) { - dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err); - goto done; - } - } - buf.index = mm->frame; - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_QUERYBUF, &buf); - if (err < 0) { - dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err); - goto done; - } - err = drv(file, VIDIOC_QBUF, &buf); - if (err < 0) { - dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err); - goto done; - } - err = drv(file, VIDIOC_STREAMON, &captype); - if (err < 0) - dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err); -done: - kfree(fmt); - return err; -} - -static noinline long v4l1_compat_sync( - int *i, - struct file *file, - v4l2_kioctl drv) -{ - long err; - enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE; - struct v4l2_buffer buf; - struct poll_wqueues *pwq; - - memset(&buf, 0, sizeof(buf)); - buf.index = *i; - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - err = drv(file, VIDIOC_QUERYBUF, &buf); - if (err < 0) { - /* No such buffer */ - dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err); - goto done; - } - if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) { - /* Buffer is not mapped */ - err = -EINVAL; - goto done; - } - - /* make sure capture actually runs so we don't block forever */ - err = drv(file, VIDIOC_STREAMON, &captype); - if (err < 0) { - dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err); - goto done; - } - - pwq = kmalloc(sizeof(*pwq), GFP_KERNEL); - /* Loop as long as the buffer is queued, but not done */ - while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE)) - == V4L2_BUF_FLAG_QUEUED) { - err = poll_one(file, pwq); - if (err < 0 || /* error or sleep was interrupted */ - err == 0) /* timeout? Shouldn't occur. */ - break; - err = drv(file, VIDIOC_QUERYBUF, &buf); - if (err < 0) - dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err); - } - kfree(pwq); - if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */ - goto done; - do { - err = drv(file, VIDIOC_DQBUF, &buf); - if (err < 0) - dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err); - } while (err == 0 && buf.index != *i); -done: - return err; -} - -static noinline long v4l1_compat_get_vbi_format( - struct vbi_format *fmt, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_format *fmt2; - - fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL); - if (!fmt2) { - err = -ENOMEM; - return err; - } - fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE; - - err = drv(file, VIDIOC_G_FMT, fmt2); - if (err < 0) { - dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err); - goto done; - } - if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) { - err = -EINVAL; - goto done; - } - memset(fmt, 0, sizeof(*fmt)); - fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line; - fmt->sampling_rate = fmt2->fmt.vbi.sampling_rate; - fmt->sample_format = VIDEO_PALETTE_RAW; - fmt->start[0] = fmt2->fmt.vbi.start[0]; - fmt->count[0] = fmt2->fmt.vbi.count[0]; - fmt->start[1] = fmt2->fmt.vbi.start[1]; - fmt->count[1] = fmt2->fmt.vbi.count[1]; - fmt->flags = fmt2->fmt.vbi.flags & 0x03; -done: - kfree(fmt2); - return err; -} - -static noinline long v4l1_compat_set_vbi_format( - struct vbi_format *fmt, - struct file *file, - v4l2_kioctl drv) -{ - long err; - struct v4l2_format *fmt2 = NULL; - - if (VIDEO_PALETTE_RAW != fmt->sample_format) { - err = -EINVAL; - return err; - } - - fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL); - if (!fmt2) { - err = -ENOMEM; - return err; - } - fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE; - fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line; - fmt2->fmt.vbi.sampling_rate = fmt->sampling_rate; - fmt2->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; - fmt2->fmt.vbi.start[0] = fmt->start[0]; - fmt2->fmt.vbi.count[0] = fmt->count[0]; - fmt2->fmt.vbi.start[1] = fmt->start[1]; - fmt2->fmt.vbi.count[1] = fmt->count[1]; - fmt2->fmt.vbi.flags = fmt->flags; - err = drv(file, VIDIOC_TRY_FMT, fmt2); - if (err < 0) { - dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err); - goto done; - } - - if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line || - fmt2->fmt.vbi.sampling_rate != fmt->sampling_rate || - fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY || - fmt2->fmt.vbi.start[0] != fmt->start[0] || - fmt2->fmt.vbi.count[0] != fmt->count[0] || - fmt2->fmt.vbi.start[1] != fmt->start[1] || - fmt2->fmt.vbi.count[1] != fmt->count[1] || - fmt2->fmt.vbi.flags != fmt->flags) { - err = -EINVAL; - goto done; - } - err = drv(file, VIDIOC_S_FMT, fmt2); - if (err < 0) - dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err); -done: - kfree(fmt2); - return err; -} - -/* - * This function is exported. - */ -long -v4l_compat_translate_ioctl(struct file *file, - int cmd, - void *arg, - v4l2_kioctl drv) -{ - long err; - - switch (cmd) { - case VIDIOCGCAP: /* capability */ - err = v4l1_compat_get_capabilities(arg, file, drv); - break; - case VIDIOCGFBUF: /* get frame buffer */ - err = v4l1_compat_get_frame_buffer(arg, file, drv); - break; - case VIDIOCSFBUF: /* set frame buffer */ - err = v4l1_compat_set_frame_buffer(arg, file, drv); - break; - case VIDIOCGWIN: /* get window or capture dimensions */ - err = v4l1_compat_get_win_cap_dimensions(arg, file, drv); - break; - case VIDIOCSWIN: /* set window and/or capture dimensions */ - err = v4l1_compat_set_win_cap_dimensions(arg, file, drv); - break; - case VIDIOCCAPTURE: /* turn on/off preview */ - err = v4l1_compat_turn_preview_on_off(arg, file, drv); - break; - case VIDIOCGCHAN: /* get input information */ - err = v4l1_compat_get_input_info(arg, file, drv); - break; - case VIDIOCSCHAN: /* set input */ - err = v4l1_compat_set_input(arg, file, drv); - break; - case VIDIOCGPICT: /* get tone controls & partial capture format */ - err = v4l1_compat_get_picture(arg, file, drv); - break; - case VIDIOCSPICT: /* set tone controls & partial capture format */ - err = v4l1_compat_set_picture(arg, file, drv); - break; - case VIDIOCGTUNER: /* get tuner information */ - err = v4l1_compat_get_tuner(arg, file, drv); - break; - case VIDIOCSTUNER: /* select a tuner input */ - err = v4l1_compat_select_tuner(arg, file, drv); - break; - case VIDIOCGFREQ: /* get frequency */ - err = v4l1_compat_get_frequency(arg, file, drv); - break; - case VIDIOCSFREQ: /* set frequency */ - err = v4l1_compat_set_frequency(arg, file, drv); - break; - case VIDIOCGAUDIO: /* get audio properties/controls */ - err = v4l1_compat_get_audio(arg, file, drv); - break; - case VIDIOCSAUDIO: /* set audio controls */ - err = v4l1_compat_set_audio(arg, file, drv); - break; - case VIDIOCMCAPTURE: /* capture a frame */ - err = v4l1_compat_capture_frame(arg, file, drv); - break; - case VIDIOCSYNC: /* wait for a frame */ - err = v4l1_compat_sync(arg, file, drv); - break; - case VIDIOCGVBIFMT: /* query VBI data capture format */ - err = v4l1_compat_get_vbi_format(arg, file, drv); - break; - case VIDIOCSVBIFMT: - err = v4l1_compat_set_vbi_format(arg, file, drv); - break; - default: - err = -ENOIOCTLCMD; - break; - } - - return err; -} -EXPORT_SYMBOL(v4l_compat_translate_ioctl); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |