diff options
Diffstat (limited to 'drivers/media/video/pwc/pwc-v4l.c')
| -rw-r--r-- | drivers/media/video/pwc/pwc-v4l.c | 1261 |
1 files changed, 0 insertions, 1261 deletions
diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c deleted file mode 100644 index bdb4ced5749..00000000000 --- a/drivers/media/video/pwc/pwc-v4l.c +++ /dev/null @@ -1,1261 +0,0 @@ -/* Linux driver for Philips webcam - USB and Video4Linux interface part. - (C) 1999-2004 Nemosoft Unv. - (C) 2004-2006 Luc Saillard (luc@saillard.org) - - NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx - driver and thus may have bugs that are not present in the original version. - Please send bug reports and support requests to <luc@saillard.org>. - The decompression routines have been implemented by reverse-engineering the - Nemosoft binary pwcx module. Caveat emptor. - - 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -*/ - -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/poll.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> -#include <asm/io.h> - -#include "pwc.h" - -static struct v4l2_queryctrl pwc_controls[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 128, - .step = 1, - .default_value = 64, - }, - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, - .maximum = 64, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = -100, - .maximum = 100, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_GAMMA, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gamma", - .minimum = 0, - .maximum = 32, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_RED_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Red Gain", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_BLUE_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Blue Gain", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_AUTO_WHITE_BALANCE, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto White Balance", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_EXPOSURE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Shutter Speed (Exposure)", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 200, - }, - { - .id = V4L2_CID_AUTOGAIN, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto Gain Enabled", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 1, - }, - { - .id = V4L2_CID_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain Level", - .minimum = 0, - .maximum = 256, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_SAVE_USER, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Save User Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_RESTORE_USER, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Restore User Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_RESTORE_FACTORY, - .type = V4L2_CTRL_TYPE_BUTTON, - .name = "Restore Factory Settings", - .minimum = 0, - .maximum = 0, - .step = 0, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_COLOUR_MODE, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Colour mode", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_AUTOCONTOUR, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Auto contour", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_CONTOUR, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contour", - .minimum = 0, - .maximum = 63, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_BACKLIGHT, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Backlight compensation", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_FLICKERLESS, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Flickerless", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 0, - }, - { - .id = V4L2_CID_PRIVATE_NOISE_REDUCTION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Noise reduction", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 0, - }, -}; - - -static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f) -{ - memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); - f->fmt.pix.width = pdev->view.x; - f->fmt.pix.height = pdev->view.y; - f->fmt.pix.field = V4L2_FIELD_NONE; - if (pdev->vpalette == VIDEO_PALETTE_YUV420P) { - f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; - f->fmt.pix.bytesperline = (f->fmt.pix.width * 3)/2; - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; - } else { - /* vbandlength contains 4 lines ... */ - f->fmt.pix.bytesperline = pdev->vbandlength/4; - f->fmt.pix.sizeimage = pdev->frame_size + sizeof(struct pwc_raw_frame); - if (DEVICE_USE_CODEC1(pdev->type)) - f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC1; - else - f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC2; - } - PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() " - "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n", - f->fmt.pix.width, - f->fmt.pix.height, - f->fmt.pix.bytesperline, - f->fmt.pix.sizeimage, - (f->fmt.pix.pixelformat)&255, - (f->fmt.pix.pixelformat>>8)&255, - (f->fmt.pix.pixelformat>>16)&255, - (f->fmt.pix.pixelformat>>24)&255); -} - -/* ioctl(VIDIOC_TRY_FMT) */ -static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f) -{ - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n"); - return -EINVAL; - } - - switch (f->fmt.pix.pixelformat) { - case V4L2_PIX_FMT_YUV420: - break; - case V4L2_PIX_FMT_PWC1: - if (DEVICE_USE_CODEC23(pdev->type)) { - PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n"); - return -EINVAL; - } - break; - case V4L2_PIX_FMT_PWC2: - if (DEVICE_USE_CODEC1(pdev->type)) { - PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n"); - return -EINVAL; - } - break; - default: - PWC_DEBUG_IOCTL("Unsupported pixel format\n"); - return -EINVAL; - - } - - if (f->fmt.pix.width > pdev->view_max.x) - f->fmt.pix.width = pdev->view_max.x; - else if (f->fmt.pix.width < pdev->view_min.x) - f->fmt.pix.width = pdev->view_min.x; - - if (f->fmt.pix.height > pdev->view_max.y) - f->fmt.pix.height = pdev->view_max.y; - else if (f->fmt.pix.height < pdev->view_min.y) - f->fmt.pix.height = pdev->view_min.y; - - return 0; -} - -/* ioctl(VIDIOC_SET_FMT) */ -static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f) -{ - int ret, fps, snapshot, compression, pixelformat; - - ret = pwc_vidioc_try_fmt(pdev, f); - if (ret<0) - return ret; - - pixelformat = f->fmt.pix.pixelformat; - compression = pdev->vcompression; - snapshot = 0; - fps = pdev->vframes; - if (f->fmt.pix.priv) { - compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT; - snapshot = !!(f->fmt.pix.priv & PWC_FPS_SNAPSHOT); - fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT; - if (fps == 0) - fps = pdev->vframes; - } - - if (pixelformat == V4L2_PIX_FMT_YUV420) - pdev->vpalette = VIDEO_PALETTE_YUV420P; - else - pdev->vpalette = VIDEO_PALETTE_RAW; - - PWC_DEBUG_IOCTL("Try to change format to: width=%d height=%d fps=%d " - "compression=%d snapshot=%d format=%c%c%c%c\n", - f->fmt.pix.width, f->fmt.pix.height, fps, - compression, snapshot, - (pixelformat)&255, - (pixelformat>>8)&255, - (pixelformat>>16)&255, - (pixelformat>>24)&255); - - ret = pwc_try_video_mode(pdev, - f->fmt.pix.width, - f->fmt.pix.height, - fps, - compression, - snapshot); - - PWC_DEBUG_IOCTL("pwc_try_video_mode(), return=%d\n", ret); - - if (ret) - return ret; - - pwc_vidioc_fill_fmt(pdev, f); - - return 0; - -} - -long pwc_video_do_ioctl(struct file *file, unsigned int cmd, void *arg) -{ - struct video_device *vdev = video_devdata(file); - struct pwc_device *pdev; - DECLARE_WAITQUEUE(wait, current); - - if (vdev == NULL) - return -EFAULT; - pdev = video_get_drvdata(vdev); - if (pdev == NULL) - return -EFAULT; - -#ifdef CONFIG_USB_PWC_DEBUG - if (PWC_DEBUG_LEVEL_IOCTL & pwc_trace) { - v4l_printk_ioctl(cmd); - printk("\n"); - } -#endif - - - switch (cmd) { - /* Query cabapilities */ - case VIDIOCGCAP: - { - struct video_capability *caps = arg; - - strcpy(caps->name, vdev->name); - caps->type = VID_TYPE_CAPTURE; - caps->channels = 1; - caps->audios = 1; - caps->minwidth = pdev->view_min.x; - caps->minheight = pdev->view_min.y; - caps->maxwidth = pdev->view_max.x; - caps->maxheight = pdev->view_max.y; - break; - } - - /* Channel functions (simulate 1 channel) */ - case VIDIOCGCHAN: - { - struct video_channel *v = arg; - - if (v->channel != 0) - return -EINVAL; - v->flags = 0; - v->tuners = 0; - v->type = VIDEO_TYPE_CAMERA; - strcpy(v->name, "Webcam"); - return 0; - } - - case VIDIOCSCHAN: - { - /* The spec says the argument is an integer, but - the bttv driver uses a video_channel arg, which - makes sense becasue it also has the norm flag. - */ - struct video_channel *v = arg; - if (v->channel != 0) - return -EINVAL; - return 0; - } - - - /* Picture functions; contrast etc. */ - case VIDIOCGPICT: - { - struct video_picture *p = arg; - int val; - - val = pwc_get_brightness(pdev); - if (val >= 0) - p->brightness = (val<<9); - else - p->brightness = 0xffff; - val = pwc_get_contrast(pdev); - if (val >= 0) - p->contrast = (val<<10); - else - p->contrast = 0xffff; - /* Gamma, Whiteness, what's the difference? :) */ - val = pwc_get_gamma(pdev); - if (val >= 0) - p->whiteness = (val<<11); - else - p->whiteness = 0xffff; - if (pwc_get_saturation(pdev, &val)<0) - p->colour = 0xffff; - else - p->colour = 32768 + val * 327; - p->depth = 24; - p->palette = pdev->vpalette; - p->hue = 0xFFFF; /* N/A */ - break; - } - - case VIDIOCSPICT: - { - struct video_picture *p = arg; - /* - * FIXME: Suppose we are mid read - ANSWER: No problem: the firmware of the camera - can handle brightness/contrast/etc - changes at _any_ time, and the palette - is used exactly once in the uncompress - routine. - */ - pwc_set_brightness(pdev, p->brightness); - pwc_set_contrast(pdev, p->contrast); - pwc_set_gamma(pdev, p->whiteness); - pwc_set_saturation(pdev, (p->colour-32768)/327); - if (p->palette && p->palette != pdev->vpalette) { - switch (p->palette) { - case VIDEO_PALETTE_YUV420P: - case VIDEO_PALETTE_RAW: - pdev->vpalette = p->palette; - return pwc_try_video_mode(pdev, pdev->image.x, pdev->image.y, pdev->vframes, pdev->vcompression, pdev->vsnapshot); - break; - default: - return -EINVAL; - break; - } - } - break; - } - - /* Window/size parameters */ - case VIDIOCGWIN: - { - struct video_window *vw = arg; - - vw->x = 0; - vw->y = 0; - vw->width = pdev->view.x; - vw->height = pdev->view.y; - vw->chromakey = 0; - vw->flags = (pdev->vframes << PWC_FPS_SHIFT) | - (pdev->vsnapshot ? PWC_FPS_SNAPSHOT : 0); - break; - } - - case VIDIOCSWIN: - { - struct video_window *vw = arg; - int fps, snapshot, ret; - - fps = (vw->flags & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT; - snapshot = vw->flags & PWC_FPS_SNAPSHOT; - if (fps == 0) - fps = pdev->vframes; - if (pdev->view.x == vw->width && pdev->view.y && fps == pdev->vframes && snapshot == pdev->vsnapshot) - return 0; - ret = pwc_try_video_mode(pdev, vw->width, vw->height, fps, pdev->vcompression, snapshot); - if (ret) - return ret; - break; - } - - /* We don't have overlay support (yet) */ - case VIDIOCGFBUF: - { - struct video_buffer *vb = arg; - - memset(vb,0,sizeof(*vb)); - break; - } - - /* mmap() functions */ - case VIDIOCGMBUF: - { - /* Tell the user program how much memory is needed for a mmap() */ - struct video_mbuf *vm = arg; - int i; - - memset(vm, 0, sizeof(*vm)); - vm->size = pwc_mbufs * pdev->len_per_image; - vm->frames = pwc_mbufs; /* double buffering should be enough for most applications */ - for (i = 0; i < pwc_mbufs; i++) - vm->offsets[i] = i * pdev->len_per_image; - break; - } - - case VIDIOCMCAPTURE: - { - /* Start capture into a given image buffer (called 'frame' in video_mmap structure) */ - struct video_mmap *vm = arg; - - PWC_DEBUG_READ("VIDIOCMCAPTURE: %dx%d, frame %d, format %d\n", vm->width, vm->height, vm->frame, vm->format); - if (vm->frame < 0 || vm->frame >= pwc_mbufs) - return -EINVAL; - - /* xawtv is nasty. It probes the available palettes - by setting a very small image size and trying - various palettes... The driver doesn't support - such small images, so I'm working around it. - */ - if (vm->format) - { - switch (vm->format) - { - case VIDEO_PALETTE_YUV420P: - case VIDEO_PALETTE_RAW: - break; - default: - return -EINVAL; - break; - } - } - - if ((vm->width != pdev->view.x || vm->height != pdev->view.y) && - (vm->width >= pdev->view_min.x && vm->height >= pdev->view_min.y)) { - int ret; - - PWC_DEBUG_OPEN("VIDIOCMCAPTURE: changing size to please xawtv :-(.\n"); - ret = pwc_try_video_mode(pdev, vm->width, vm->height, pdev->vframes, pdev->vcompression, pdev->vsnapshot); - if (ret) - return ret; - } /* ... size mismatch */ - - /* FIXME: should we lock here? */ - if (pdev->image_used[vm->frame]) - return -EBUSY; /* buffer wasn't available. Bummer */ - pdev->image_used[vm->frame] = 1; - - /* Okay, we're done here. In the SYNC call we wait until a - frame comes available, then expand image into the given - buffer. - In contrast to the CPiA cam the Philips cams deliver a - constant stream, almost like a grabber card. Also, - we have separate buffers for the rawdata and the image, - meaning we can nearly always expand into the requested buffer. - */ - PWC_DEBUG_READ("VIDIOCMCAPTURE done.\n"); - break; - } - - case VIDIOCSYNC: - { - /* The doc says: "Whenever a buffer is used it should - call VIDIOCSYNC to free this frame up and continue." - - The only odd thing about this whole procedure is - that MCAPTURE flags the buffer as "in use", and - SYNC immediately unmarks it, while it isn't - after SYNC that you know that the buffer actually - got filled! So you better not start a CAPTURE in - the same frame immediately (use double buffering). - This is not a problem for this cam, since it has - extra intermediate buffers, but a hardware - grabber card will then overwrite the buffer - you're working on. - */ - int *mbuf = arg; - int ret; - - PWC_DEBUG_READ("VIDIOCSYNC called (%d).\n", *mbuf); - - /* bounds check */ - if (*mbuf < 0 || *mbuf >= pwc_mbufs) - return -EINVAL; - /* check if this buffer was requested anyway */ - if (pdev->image_used[*mbuf] == 0) - return -EINVAL; - - /* Add ourselves to the frame wait-queue. - - FIXME: needs auditing for safety. - QUESTION: In what respect? I think that using the - frameq is safe now. - */ - add_wait_queue(&pdev->frameq, &wait); - while (pdev->full_frames == NULL) { - /* Check for unplugged/etc. here */ - if (pdev->error_status) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -pdev->error_status; - } - - if (signal_pending(current)) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -ERESTARTSYS; - } - schedule(); - set_current_state(TASK_INTERRUPTIBLE); - } - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - - /* The frame is ready. Expand in the image buffer - requested by the user. I don't care if you - mmap() 5 buffers and request data in this order: - buffer 4 2 3 0 1 2 3 0 4 3 1 . . . - Grabber hardware may not be so forgiving. - */ - PWC_DEBUG_READ("VIDIOCSYNC: frame ready.\n"); - pdev->fill_image = *mbuf; /* tell in which buffer we want the image to be expanded */ - /* Decompress, etc */ - ret = pwc_handle_frame(pdev); - pdev->image_used[*mbuf] = 0; - if (ret) - return -EFAULT; - break; - } - - case VIDIOCGAUDIO: - { - struct video_audio *v = arg; - - strcpy(v->name, "Microphone"); - v->audio = -1; /* unknown audio minor */ - v->flags = 0; - v->mode = VIDEO_SOUND_MONO; - v->volume = 0; - v->bass = 0; - v->treble = 0; - v->balance = 0x8000; - v->step = 1; - break; - } - - case VIDIOCSAUDIO: - { - /* Dummy: nothing can be set */ - break; - } - - case VIDIOCGUNIT: - { - struct video_unit *vu = arg; - - vu->video = pdev->vdev->minor & 0x3F; - vu->audio = -1; /* not known yet */ - vu->vbi = -1; - vu->radio = -1; - vu->teletext = -1; - break; - } - - /* V4L2 Layer */ - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = arg; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCAP) This application "\ - "try to use the v4l2 layer\n"); - strcpy(cap->driver,PWC_NAME); - strlcpy(cap->card, vdev->name, sizeof(cap->card)); - usb_make_path(pdev->udev,cap->bus_info,sizeof(cap->bus_info)); - cap->version = PWC_VERSION_CODE; - cap->capabilities = - V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_STREAMING | - V4L2_CAP_READWRITE; - return 0; - } - - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *i = arg; - - if ( i->index ) /* Only one INPUT is supported */ - return -EINVAL; - - memset(i, 0, sizeof(struct v4l2_input)); - strcpy(i->name, "usb"); - return 0; - } - - case VIDIOC_G_INPUT: - { - int *i = arg; - *i = 0; /* Only one INPUT is supported */ - return 0; - } - case VIDIOC_S_INPUT: - { - int *i = arg; - - if ( *i ) { /* Only one INPUT is supported */ - PWC_DEBUG_IOCTL("Only one input source is"\ - " supported with this webcam.\n"); - return -EINVAL; - } - return 0; - } - - /* TODO: */ - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *c = arg; - int i; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) query id=%d\n", c->id); - for (i=0; i<sizeof(pwc_controls)/sizeof(struct v4l2_queryctrl); i++) { - if (pwc_controls[i].id == c->id) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n"); - memcpy(c,&pwc_controls[i],sizeof(struct v4l2_queryctrl)); - return 0; - } - } - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) not found\n"); - - return -EINVAL; - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *c = arg; - int ret; - - switch (c->id) - { - case V4L2_CID_BRIGHTNESS: - c->value = pwc_get_brightness(pdev); - if (c->value<0) - return -EINVAL; - return 0; - case V4L2_CID_CONTRAST: - c->value = pwc_get_contrast(pdev); - if (c->value<0) - return -EINVAL; - return 0; - case V4L2_CID_SATURATION: - ret = pwc_get_saturation(pdev, &c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_GAMMA: - c->value = pwc_get_gamma(pdev); - if (c->value<0) - return -EINVAL; - return 0; - case V4L2_CID_RED_BALANCE: - ret = pwc_get_red_gain(pdev, &c->value); - if (ret<0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_BLUE_BALANCE: - ret = pwc_get_blue_gain(pdev, &c->value); - if (ret<0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_AUTO_WHITE_BALANCE: - ret = pwc_get_awb(pdev); - if (ret<0) - return -EINVAL; - c->value = (ret == PWC_WB_MANUAL)?0:1; - return 0; - case V4L2_CID_GAIN: - ret = pwc_get_agc(pdev, &c->value); - if (ret<0) - return -EINVAL; - c->value >>= 8; - return 0; - case V4L2_CID_AUTOGAIN: - ret = pwc_get_agc(pdev, &c->value); - if (ret<0) - return -EINVAL; - c->value = (c->value < 0)?1:0; - return 0; - case V4L2_CID_EXPOSURE: - ret = pwc_get_shutter_speed(pdev, &c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_COLOUR_MODE: - ret = pwc_get_colour_mode(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_AUTOCONTOUR: - ret = pwc_get_contour(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value=(c->value == -1?1:0); - return 0; - case V4L2_CID_PRIVATE_CONTOUR: - ret = pwc_get_contour(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value >>= 10; - return 0; - case V4L2_CID_PRIVATE_BACKLIGHT: - ret = pwc_get_backlight(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_FLICKERLESS: - ret = pwc_get_flicker(pdev, &c->value); - if (ret < 0) - return -EINVAL; - c->value=(c->value?1:0); - return 0; - case V4L2_CID_PRIVATE_NOISE_REDUCTION: - ret = pwc_get_dynamic_noise(pdev, &c->value); - if (ret < 0) - return -EINVAL; - return 0; - - case V4L2_CID_PRIVATE_SAVE_USER: - case V4L2_CID_PRIVATE_RESTORE_USER: - case V4L2_CID_PRIVATE_RESTORE_FACTORY: - return -EINVAL; - } - return -EINVAL; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *c = arg; - int ret; - - switch (c->id) - { - case V4L2_CID_BRIGHTNESS: - c->value <<= 9; - ret = pwc_set_brightness(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_CONTRAST: - c->value <<= 10; - ret = pwc_set_contrast(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_SATURATION: - ret = pwc_set_saturation(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_GAMMA: - c->value <<= 11; - ret = pwc_set_gamma(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_RED_BALANCE: - c->value <<= 8; - ret = pwc_set_red_gain(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_BLUE_BALANCE: - c->value <<= 8; - ret = pwc_set_blue_gain(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_AUTO_WHITE_BALANCE: - c->value = (c->value == 0)?PWC_WB_MANUAL:PWC_WB_AUTO; - ret = pwc_set_awb(pdev, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_EXPOSURE: - c->value <<= 8; - ret = pwc_set_shutter_speed(pdev, c->value?0:1, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_AUTOGAIN: - /* autogain off means nothing without a gain */ - if (c->value == 0) - return 0; - ret = pwc_set_agc(pdev, c->value, 0); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_GAIN: - c->value <<= 8; - ret = pwc_set_agc(pdev, 0, c->value); - if (ret<0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_SAVE_USER: - if (pwc_save_user(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_RESTORE_USER: - if (pwc_restore_user(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_RESTORE_FACTORY: - if (pwc_restore_factory(pdev)) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_COLOUR_MODE: - ret = pwc_set_colour_mode(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_AUTOCONTOUR: - c->value=(c->value == 1)?-1:0; - ret = pwc_set_contour(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_CONTOUR: - c->value <<= 10; - ret = pwc_set_contour(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_BACKLIGHT: - ret = pwc_set_backlight(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - case V4L2_CID_PRIVATE_FLICKERLESS: - ret = pwc_set_flicker(pdev, c->value); - if (ret < 0) - return -EINVAL; - case V4L2_CID_PRIVATE_NOISE_REDUCTION: - ret = pwc_set_dynamic_noise(pdev, c->value); - if (ret < 0) - return -EINVAL; - return 0; - - } - return -EINVAL; - } - - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *f = arg; - int index; - - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - /* We only support two format: the raw format, and YUV */ - index = f->index; - memset(f,0,sizeof(struct v4l2_fmtdesc)); - f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - f->index = index; - switch(index) - { - case 0: - /* RAW format */ - f->pixelformat = pdev->type<=646?V4L2_PIX_FMT_PWC1:V4L2_PIX_FMT_PWC2; - f->flags = V4L2_FMT_FLAG_COMPRESSED; - strlcpy(f->description,"Raw Philips Webcam",sizeof(f->description)); - break; - case 1: - f->pixelformat = V4L2_PIX_FMT_YUV420; - strlcpy(f->description,"4:2:0, planar, Y-Cb-Cr",sizeof(f->description)); - break; - default: - return -EINVAL; - } - return 0; - } - - case VIDIOC_G_FMT: - { - struct v4l2_format *f = arg; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",pdev->image.x,pdev->image.y); - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - pwc_vidioc_fill_fmt(pdev, f); - - return 0; - } - - case VIDIOC_TRY_FMT: - return pwc_vidioc_try_fmt(pdev, arg); - - case VIDIOC_S_FMT: - return pwc_vidioc_set_fmt(pdev, arg); - - case VIDIOC_G_STD: - { - v4l2_std_id *std = arg; - *std = V4L2_STD_UNKNOWN; - return 0; - } - - case VIDIOC_S_STD: - { - v4l2_std_id *std = arg; - if (*std != V4L2_STD_UNKNOWN) - return -EINVAL; - return 0; - } - - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *std = arg; - if (std->index != 0) - return -EINVAL; - std->id = V4L2_STD_UNKNOWN; - strlcpy(std->name, "webcam", sizeof(std->name)); - return 0; - } - - case VIDIOC_REQBUFS: - { - struct v4l2_requestbuffers *rb = arg; - int nbuffers; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n",rb->count); - if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (rb->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - - nbuffers = rb->count; - if (nbuffers < 2) - nbuffers = 2; - else if (nbuffers > pwc_mbufs) - nbuffers = pwc_mbufs; - /* Force to use our # of buffers */ - rb->count = pwc_mbufs; - return 0; - } - - case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *buf = arg; - int index; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n",buf->index); - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n"); - return -EINVAL; - } - if (buf->memory != V4L2_MEMORY_MMAP) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad memory type\n"); - return -EINVAL; - } - index = buf->index; - if (index < 0 || index >= pwc_mbufs) { - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf->index); - return -EINVAL; - } - - memset(buf, 0, sizeof(struct v4l2_buffer)); - buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf->index = index; - buf->m.offset = index * pdev->len_per_image; - if (pdev->vpalette == VIDEO_PALETTE_RAW) - buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); - else - buf->bytesused = pdev->view.size; - buf->field = V4L2_FIELD_NONE; - buf->memory = V4L2_MEMORY_MMAP; - //buf->flags = V4L2_BUF_FLAG_MAPPED; - buf->length = pdev->len_per_image; - - PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n",buf->index); - PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n",buf->m.offset); - PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n",buf->bytesused); - - return 0; - } - - case VIDIOC_QBUF: - { - struct v4l2_buffer *buf = arg; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n",buf->index); - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (buf->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - if (buf->index >= pwc_mbufs) - return -EINVAL; - - buf->flags |= V4L2_BUF_FLAG_QUEUED; - buf->flags &= ~V4L2_BUF_FLAG_DONE; - - return 0; - } - - case VIDIOC_DQBUF: - { - struct v4l2_buffer *buf = arg; - int ret; - - PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n"); - - if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - /* Add ourselves to the frame wait-queue. - - FIXME: needs auditing for safety. - QUESTION: In what respect? I think that using the - frameq is safe now. - */ - add_wait_queue(&pdev->frameq, &wait); - while (pdev->full_frames == NULL) { - if (pdev->error_status) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -pdev->error_status; - } - - if (signal_pending(current)) { - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - return -ERESTARTSYS; - } - schedule(); - set_current_state(TASK_INTERRUPTIBLE); - } - remove_wait_queue(&pdev->frameq, &wait); - set_current_state(TASK_RUNNING); - - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n"); - /* Decompress data in pdev->images[pdev->fill_image] */ - ret = pwc_handle_frame(pdev); - if (ret) - return -EFAULT; - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n"); - - buf->index = pdev->fill_image; - if (pdev->vpalette == VIDEO_PALETTE_RAW) - buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); - else - buf->bytesused = pdev->view.size; - buf->flags = V4L2_BUF_FLAG_MAPPED; - buf->field = V4L2_FIELD_NONE; - do_gettimeofday(&buf->timestamp); - buf->sequence = 0; - buf->memory = V4L2_MEMORY_MMAP; - buf->m.offset = pdev->fill_image * pdev->len_per_image; - buf->length = pdev->len_per_image; - pwc_next_image(pdev); - - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n",buf->index); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n",buf->length); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n",buf->m.offset); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n",buf->bytesused); - PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n"); - return 0; - - } - - case VIDIOC_STREAMON: - { - /* WARNING: pwc_try_video_mode() called pwc_isoc_init */ - pwc_isoc_init(pdev); - return 0; - } - - case VIDIOC_STREAMOFF: - { - pwc_isoc_cleanup(pdev); - return 0; - } - - case VIDIOC_ENUM_FRAMESIZES: - { - struct v4l2_frmsizeenum *fsize = arg; - unsigned int i = 0, index = fsize->index; - - if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) { - for (i = 0; i < PSZ_MAX; i++) { - if (pdev->image_mask & (1UL << i)) { - if (!index--) { - fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; - fsize->discrete.width = pwc_image_sizes[i].x; - fsize->discrete.height = pwc_image_sizes[i].y; - return 0; - } - } - } - } else if (fsize->index == 0 && - ((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) || - (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) { - - fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; - fsize->discrete.width = pdev->abs_max.x; - fsize->discrete.height = pdev->abs_max.y; - return 0; - } - return -EINVAL; - } - - case VIDIOC_ENUM_FRAMEINTERVALS: - { - struct v4l2_frmivalenum *fival = arg; - int size = -1; - unsigned int i; - - for (i = 0; i < PSZ_MAX; i++) { - if (pwc_image_sizes[i].x == fival->width && - pwc_image_sizes[i].y == fival->height) { - size = i; - break; - } - } - - /* TODO: Support raw format */ - if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) { - return -EINVAL; - } - - i = pwc_get_fps(pdev, fival->index, size); - if (!i) - return -EINVAL; - - fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; - fival->discrete.numerator = 1; - fival->discrete.denominator = i; - - return 0; - } - - default: - return pwc_ioctl(pdev, cmd, arg); - } /* ..switch */ - return 0; -} - -/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ |