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marcus.erl |
/* Linux driver for Philips webcam
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USB and Video4Linux interface part.
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(C) 1999-2004 Nemosoft Unv.
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(C) 2004-2006 Luc Saillard (luc@saillard.org)
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NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
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driver and thus may have bugs that are not present in the original version.
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Please send bug reports and support requests to <luc@saillard.org>.
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The decompression routines have been implemented by reverse-engineering the
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Nemosoft binary pwcx module. Caveat emptor.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/poll.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <asm/io.h>
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#include "pwc.h"
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static struct v4l2_queryctrl pwc_controls[] = {
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 128,
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.step = 1,
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.default_value = 64,
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},
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{
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 64,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Saturation",
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.minimum = -100,
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.maximum = 100,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_GAMMA,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Gamma",
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.minimum = 0,
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.maximum = 32,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_RED_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Red Gain",
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.minimum = 0,
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.maximum = 256,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_BLUE_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Blue Gain",
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.minimum = 0,
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.maximum = 256,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_AUTO_WHITE_BALANCE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Auto White Balance",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Shutter Speed (Exposure)",
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.minimum = 0,
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.maximum = 256,
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.step = 1,
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.default_value = 200,
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},
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{
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.id = V4L2_CID_AUTOGAIN,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Auto Gain Enabled",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 1,
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},
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Gain Level",
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.minimum = 0,
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.maximum = 256,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_SAVE_USER,
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.type = V4L2_CTRL_TYPE_BUTTON,
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.name = "Save User Settings",
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.minimum = 0,
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.maximum = 0,
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.step = 0,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_RESTORE_USER,
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.type = V4L2_CTRL_TYPE_BUTTON,
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.name = "Restore User Settings",
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.minimum = 0,
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.maximum = 0,
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.step = 0,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_RESTORE_FACTORY,
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.type = V4L2_CTRL_TYPE_BUTTON,
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.name = "Restore Factory Settings",
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.minimum = 0,
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.maximum = 0,
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.step = 0,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_COLOUR_MODE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Colour mode",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_AUTOCONTOUR,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Auto contour",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_CONTOUR,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contour",
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.minimum = 0,
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.maximum = 63,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_BACKLIGHT,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Backlight compensation",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_FLICKERLESS,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Flickerless",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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},
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{
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.id = V4L2_CID_PRIVATE_NOISE_REDUCTION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Noise reduction",
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.minimum = 0,
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.maximum = 3,
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.step = 1,
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.default_value = 0,
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},
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};
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static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f)
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{
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memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
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f->fmt.pix.width = pdev->view.x;
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f->fmt.pix.height = pdev->view.y;
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f->fmt.pix.field = V4L2_FIELD_NONE;
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if (pdev->vpalette == VIDEO_PALETTE_YUV420P) {
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f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
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f->fmt.pix.bytesperline = (f->fmt.pix.width * 3)/2;
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f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
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} else {
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/* vbandlength contains 4 lines ... */
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f->fmt.pix.bytesperline = pdev->vbandlength/4;
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f->fmt.pix.sizeimage = pdev->frame_size + sizeof(struct pwc_raw_frame);
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if (DEVICE_USE_CODEC1(pdev->type))
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f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC1;
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else
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f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC2;
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}
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PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() "
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"width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n",
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f->fmt.pix.width,
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f->fmt.pix.height,
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f->fmt.pix.bytesperline,
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f->fmt.pix.sizeimage,
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(f->fmt.pix.pixelformat)&255,
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(f->fmt.pix.pixelformat>>8)&255,
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(f->fmt.pix.pixelformat>>16)&255,
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(f->fmt.pix.pixelformat>>24)&255);
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}
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/* ioctl(VIDIOC_TRY_FMT) */
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static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
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{
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if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
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PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
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return -EINVAL;
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}
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| 253 |
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switch (f->fmt.pix.pixelformat) {
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case V4L2_PIX_FMT_YUV420:
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break;
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| 256 |
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case V4L2_PIX_FMT_PWC1:
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if (DEVICE_USE_CODEC23(pdev->type)) {
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PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
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return -EINVAL;
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}
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| 261 |
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break;
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| 262 |
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case V4L2_PIX_FMT_PWC2:
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| 263 |
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if (DEVICE_USE_CODEC1(pdev->type)) {
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| 264 |
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PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
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| 265 |
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return -EINVAL;
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| 266 |
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}
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| 267 |
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break;
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| 268 |
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default:
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| 269 |
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PWC_DEBUG_IOCTL("Unsupported pixel format\n");
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| 270 |
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return -EINVAL;
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| 271 |
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|
| 272 |
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}
|
| 273 |
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|
| 274 |
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if (f->fmt.pix.width > pdev->view_max.x)
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| 275 |
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f->fmt.pix.width = pdev->view_max.x;
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| 276 |
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else if (f->fmt.pix.width < pdev->view_min.x)
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| 277 |
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f->fmt.pix.width = pdev->view_min.x;
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| 278 |
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|
| 279 |
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if (f->fmt.pix.height > pdev->view_max.y)
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| 280 |
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f->fmt.pix.height = pdev->view_max.y;
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| 281 |
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else if (f->fmt.pix.height < pdev->view_min.y)
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| 282 |
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f->fmt.pix.height = pdev->view_min.y;
|
| 283 |
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|
| 284 |
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return 0;
|
| 285 |
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}
|
| 286 |
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|
|
| 287 |
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/* ioctl(VIDIOC_SET_FMT) */
|
| 288 |
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static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f)
|
| 289 |
|
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{
|
| 290 |
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int ret, fps, snapshot, compression, pixelformat;
|
| 291 |
|
|
|
| 292 |
|
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ret = pwc_vidioc_try_fmt(pdev, f);
|
| 293 |
|
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if (ret<0)
|
| 294 |
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return ret;
|
| 295 |
|
|
|
| 296 |
|
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pixelformat = f->fmt.pix.pixelformat;
|
| 297 |
|
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compression = pdev->vcompression;
|
| 298 |
|
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snapshot = 0;
|
| 299 |
|
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fps = pdev->vframes;
|
| 300 |
|
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if (f->fmt.pix.priv) {
|
| 301 |
|
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compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT;
|
| 302 |
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snapshot = !!(f->fmt.pix.priv & PWC_FPS_SNAPSHOT);
|
| 303 |
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fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT;
|
| 304 |
|
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if (fps == 0)
|
| 305 |
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fps = pdev->vframes;
|
| 306 |
|
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}
|
| 307 |
|
|
|
| 308 |
|
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if (pixelformat == V4L2_PIX_FMT_YUV420)
|
| 309 |
|
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pdev->vpalette = VIDEO_PALETTE_YUV420P;
|
| 310 |
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else
|
| 311 |
|
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pdev->vpalette = VIDEO_PALETTE_RAW;
|
| 312 |
|
|
|
| 313 |
|
|
PWC_DEBUG_IOCTL("Try to change format to: width=%d height=%d fps=%d "
|
| 314 |
|
|
"compression=%d snapshot=%d format=%c%c%c%c\n",
|
| 315 |
|
|
f->fmt.pix.width, f->fmt.pix.height, fps,
|
| 316 |
|
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compression, snapshot,
|
| 317 |
|
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(pixelformat)&255,
|
| 318 |
|
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(pixelformat>>8)&255,
|
| 319 |
|
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(pixelformat>>16)&255,
|
| 320 |
|
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(pixelformat>>24)&255);
|
| 321 |
|
|
|
| 322 |
|
|
ret = pwc_try_video_mode(pdev,
|
| 323 |
|
|
f->fmt.pix.width,
|
| 324 |
|
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f->fmt.pix.height,
|
| 325 |
|
|
fps,
|
| 326 |
|
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compression,
|
| 327 |
|
|
snapshot);
|
| 328 |
|
|
|
| 329 |
|
|
PWC_DEBUG_IOCTL("pwc_try_video_mode(), return=%d\n", ret);
|
| 330 |
|
|
|
| 331 |
|
|
if (ret)
|
| 332 |
|
|
return ret;
|
| 333 |
|
|
|
| 334 |
|
|
pwc_vidioc_fill_fmt(pdev, f);
|
| 335 |
|
|
|
| 336 |
|
|
return 0;
|
| 337 |
|
|
|
| 338 |
|
|
}
|
| 339 |
|
|
|
| 340 |
|
|
int pwc_video_do_ioctl(struct inode *inode, struct file *file,
|
| 341 |
|
|
unsigned int cmd, void *arg)
|
| 342 |
|
|
{
|
| 343 |
|
|
struct video_device *vdev = video_devdata(file);
|
| 344 |
|
|
struct pwc_device *pdev;
|
| 345 |
|
|
DECLARE_WAITQUEUE(wait, current);
|
| 346 |
|
|
|
| 347 |
|
|
if (vdev == NULL)
|
| 348 |
|
|
return -EFAULT;
|
| 349 |
|
|
pdev = vdev->priv;
|
| 350 |
|
|
if (pdev == NULL)
|
| 351 |
|
|
return -EFAULT;
|
| 352 |
|
|
|
| 353 |
|
|
#ifdef CONFIG_USB_PWC_DEBUG
|
| 354 |
|
|
if (PWC_DEBUG_LEVEL_IOCTL & pwc_trace)
|
| 355 |
|
|
v4l_printk_ioctl(cmd);
|
| 356 |
|
|
#endif
|
| 357 |
|
|
|
| 358 |
|
|
|
| 359 |
|
|
switch (cmd) {
|
| 360 |
|
|
/* Query cabapilities */
|
| 361 |
|
|
case VIDIOCGCAP:
|
| 362 |
|
|
{
|
| 363 |
|
|
struct video_capability *caps = arg;
|
| 364 |
|
|
|
| 365 |
|
|
strcpy(caps->name, vdev->name);
|
| 366 |
|
|
caps->type = VID_TYPE_CAPTURE;
|
| 367 |
|
|
caps->channels = 1;
|
| 368 |
|
|
caps->audios = 1;
|
| 369 |
|
|
caps->minwidth = pdev->view_min.x;
|
| 370 |
|
|
caps->minheight = pdev->view_min.y;
|
| 371 |
|
|
caps->maxwidth = pdev->view_max.x;
|
| 372 |
|
|
caps->maxheight = pdev->view_max.y;
|
| 373 |
|
|
break;
|
| 374 |
|
|
}
|
| 375 |
|
|
|
| 376 |
|
|
/* Channel functions (simulate 1 channel) */
|
| 377 |
|
|
case VIDIOCGCHAN:
|
| 378 |
|
|
{
|
| 379 |
|
|
struct video_channel *v = arg;
|
| 380 |
|
|
|
| 381 |
|
|
if (v->channel != 0)
|
| 382 |
|
|
return -EINVAL;
|
| 383 |
|
|
v->flags = 0;
|
| 384 |
|
|
v->tuners = 0;
|
| 385 |
|
|
v->type = VIDEO_TYPE_CAMERA;
|
| 386 |
|
|
strcpy(v->name, "Webcam");
|
| 387 |
|
|
return 0;
|
| 388 |
|
|
}
|
| 389 |
|
|
|
| 390 |
|
|
case VIDIOCSCHAN:
|
| 391 |
|
|
{
|
| 392 |
|
|
/* The spec says the argument is an integer, but
|
| 393 |
|
|
the bttv driver uses a video_channel arg, which
|
| 394 |
|
|
makes sense becasue it also has the norm flag.
|
| 395 |
|
|
*/
|
| 396 |
|
|
struct video_channel *v = arg;
|
| 397 |
|
|
if (v->channel != 0)
|
| 398 |
|
|
return -EINVAL;
|
| 399 |
|
|
return 0;
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
|
| 403 |
|
|
/* Picture functions; contrast etc. */
|
| 404 |
|
|
case VIDIOCGPICT:
|
| 405 |
|
|
{
|
| 406 |
|
|
struct video_picture *p = arg;
|
| 407 |
|
|
int val;
|
| 408 |
|
|
|
| 409 |
|
|
val = pwc_get_brightness(pdev);
|
| 410 |
|
|
if (val >= 0)
|
| 411 |
|
|
p->brightness = (val<<9);
|
| 412 |
|
|
else
|
| 413 |
|
|
p->brightness = 0xffff;
|
| 414 |
|
|
val = pwc_get_contrast(pdev);
|
| 415 |
|
|
if (val >= 0)
|
| 416 |
|
|
p->contrast = (val<<10);
|
| 417 |
|
|
else
|
| 418 |
|
|
p->contrast = 0xffff;
|
| 419 |
|
|
/* Gamma, Whiteness, what's the difference? :) */
|
| 420 |
|
|
val = pwc_get_gamma(pdev);
|
| 421 |
|
|
if (val >= 0)
|
| 422 |
|
|
p->whiteness = (val<<11);
|
| 423 |
|
|
else
|
| 424 |
|
|
p->whiteness = 0xffff;
|
| 425 |
|
|
if (pwc_get_saturation(pdev, &val)<0)
|
| 426 |
|
|
p->colour = 0xffff;
|
| 427 |
|
|
else
|
| 428 |
|
|
p->colour = 32768 + val * 327;
|
| 429 |
|
|
p->depth = 24;
|
| 430 |
|
|
p->palette = pdev->vpalette;
|
| 431 |
|
|
p->hue = 0xFFFF; /* N/A */
|
| 432 |
|
|
break;
|
| 433 |
|
|
}
|
| 434 |
|
|
|
| 435 |
|
|
case VIDIOCSPICT:
|
| 436 |
|
|
{
|
| 437 |
|
|
struct video_picture *p = arg;
|
| 438 |
|
|
/*
|
| 439 |
|
|
* FIXME: Suppose we are mid read
|
| 440 |
|
|
ANSWER: No problem: the firmware of the camera
|
| 441 |
|
|
can handle brightness/contrast/etc
|
| 442 |
|
|
changes at _any_ time, and the palette
|
| 443 |
|
|
is used exactly once in the uncompress
|
| 444 |
|
|
routine.
|
| 445 |
|
|
*/
|
| 446 |
|
|
pwc_set_brightness(pdev, p->brightness);
|
| 447 |
|
|
pwc_set_contrast(pdev, p->contrast);
|
| 448 |
|
|
pwc_set_gamma(pdev, p->whiteness);
|
| 449 |
|
|
pwc_set_saturation(pdev, (p->colour-32768)/327);
|
| 450 |
|
|
if (p->palette && p->palette != pdev->vpalette) {
|
| 451 |
|
|
switch (p->palette) {
|
| 452 |
|
|
case VIDEO_PALETTE_YUV420P:
|
| 453 |
|
|
case VIDEO_PALETTE_RAW:
|
| 454 |
|
|
pdev->vpalette = p->palette;
|
| 455 |
|
|
return pwc_try_video_mode(pdev, pdev->image.x, pdev->image.y, pdev->vframes, pdev->vcompression, pdev->vsnapshot);
|
| 456 |
|
|
break;
|
| 457 |
|
|
default:
|
| 458 |
|
|
return -EINVAL;
|
| 459 |
|
|
break;
|
| 460 |
|
|
}
|
| 461 |
|
|
}
|
| 462 |
|
|
break;
|
| 463 |
|
|
}
|
| 464 |
|
|
|
| 465 |
|
|
/* Window/size parameters */
|
| 466 |
|
|
case VIDIOCGWIN:
|
| 467 |
|
|
{
|
| 468 |
|
|
struct video_window *vw = arg;
|
| 469 |
|
|
|
| 470 |
|
|
vw->x = 0;
|
| 471 |
|
|
vw->y = 0;
|
| 472 |
|
|
vw->width = pdev->view.x;
|
| 473 |
|
|
vw->height = pdev->view.y;
|
| 474 |
|
|
vw->chromakey = 0;
|
| 475 |
|
|
vw->flags = (pdev->vframes << PWC_FPS_SHIFT) |
|
| 476 |
|
|
(pdev->vsnapshot ? PWC_FPS_SNAPSHOT : 0);
|
| 477 |
|
|
break;
|
| 478 |
|
|
}
|
| 479 |
|
|
|
| 480 |
|
|
case VIDIOCSWIN:
|
| 481 |
|
|
{
|
| 482 |
|
|
struct video_window *vw = arg;
|
| 483 |
|
|
int fps, snapshot, ret;
|
| 484 |
|
|
|
| 485 |
|
|
fps = (vw->flags & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT;
|
| 486 |
|
|
snapshot = vw->flags & PWC_FPS_SNAPSHOT;
|
| 487 |
|
|
if (fps == 0)
|
| 488 |
|
|
fps = pdev->vframes;
|
| 489 |
|
|
if (pdev->view.x == vw->width && pdev->view.y && fps == pdev->vframes && snapshot == pdev->vsnapshot)
|
| 490 |
|
|
return 0;
|
| 491 |
|
|
ret = pwc_try_video_mode(pdev, vw->width, vw->height, fps, pdev->vcompression, snapshot);
|
| 492 |
|
|
if (ret)
|
| 493 |
|
|
return ret;
|
| 494 |
|
|
break;
|
| 495 |
|
|
}
|
| 496 |
|
|
|
| 497 |
|
|
/* We don't have overlay support (yet) */
|
| 498 |
|
|
case VIDIOCGFBUF:
|
| 499 |
|
|
{
|
| 500 |
|
|
struct video_buffer *vb = arg;
|
| 501 |
|
|
|
| 502 |
|
|
memset(vb,0,sizeof(*vb));
|
| 503 |
|
|
break;
|
| 504 |
|
|
}
|
| 505 |
|
|
|
| 506 |
|
|
/* mmap() functions */
|
| 507 |
|
|
case VIDIOCGMBUF:
|
| 508 |
|
|
{
|
| 509 |
|
|
/* Tell the user program how much memory is needed for a mmap() */
|
| 510 |
|
|
struct video_mbuf *vm = arg;
|
| 511 |
|
|
int i;
|
| 512 |
|
|
|
| 513 |
|
|
memset(vm, 0, sizeof(*vm));
|
| 514 |
|
|
vm->size = pwc_mbufs * pdev->len_per_image;
|
| 515 |
|
|
vm->frames = pwc_mbufs; /* double buffering should be enough for most applications */
|
| 516 |
|
|
for (i = 0; i < pwc_mbufs; i++)
|
| 517 |
|
|
vm->offsets[i] = i * pdev->len_per_image;
|
| 518 |
|
|
break;
|
| 519 |
|
|
}
|
| 520 |
|
|
|
| 521 |
|
|
case VIDIOCMCAPTURE:
|
| 522 |
|
|
{
|
| 523 |
|
|
/* Start capture into a given image buffer (called 'frame' in video_mmap structure) */
|
| 524 |
|
|
struct video_mmap *vm = arg;
|
| 525 |
|
|
|
| 526 |
|
|
PWC_DEBUG_READ("VIDIOCMCAPTURE: %dx%d, frame %d, format %d\n", vm->width, vm->height, vm->frame, vm->format);
|
| 527 |
|
|
if (vm->frame < 0 || vm->frame >= pwc_mbufs)
|
| 528 |
|
|
return -EINVAL;
|
| 529 |
|
|
|
| 530 |
|
|
/* xawtv is nasty. It probes the available palettes
|
| 531 |
|
|
by setting a very small image size and trying
|
| 532 |
|
|
various palettes... The driver doesn't support
|
| 533 |
|
|
such small images, so I'm working around it.
|
| 534 |
|
|
*/
|
| 535 |
|
|
if (vm->format)
|
| 536 |
|
|
{
|
| 537 |
|
|
switch (vm->format)
|
| 538 |
|
|
{
|
| 539 |
|
|
case VIDEO_PALETTE_YUV420P:
|
| 540 |
|
|
case VIDEO_PALETTE_RAW:
|
| 541 |
|
|
break;
|
| 542 |
|
|
default:
|
| 543 |
|
|
return -EINVAL;
|
| 544 |
|
|
break;
|
| 545 |
|
|
}
|
| 546 |
|
|
}
|
| 547 |
|
|
|
| 548 |
|
|
if ((vm->width != pdev->view.x || vm->height != pdev->view.y) &&
|
| 549 |
|
|
(vm->width >= pdev->view_min.x && vm->height >= pdev->view_min.y)) {
|
| 550 |
|
|
int ret;
|
| 551 |
|
|
|
| 552 |
|
|
PWC_DEBUG_OPEN("VIDIOCMCAPTURE: changing size to please xawtv :-(.\n");
|
| 553 |
|
|
ret = pwc_try_video_mode(pdev, vm->width, vm->height, pdev->vframes, pdev->vcompression, pdev->vsnapshot);
|
| 554 |
|
|
if (ret)
|
| 555 |
|
|
return ret;
|
| 556 |
|
|
} /* ... size mismatch */
|
| 557 |
|
|
|
| 558 |
|
|
/* FIXME: should we lock here? */
|
| 559 |
|
|
if (pdev->image_used[vm->frame])
|
| 560 |
|
|
return -EBUSY; /* buffer wasn't available. Bummer */
|
| 561 |
|
|
pdev->image_used[vm->frame] = 1;
|
| 562 |
|
|
|
| 563 |
|
|
/* Okay, we're done here. In the SYNC call we wait until a
|
| 564 |
|
|
frame comes available, then expand image into the given
|
| 565 |
|
|
buffer.
|
| 566 |
|
|
In contrast to the CPiA cam the Philips cams deliver a
|
| 567 |
|
|
constant stream, almost like a grabber card. Also,
|
| 568 |
|
|
we have separate buffers for the rawdata and the image,
|
| 569 |
|
|
meaning we can nearly always expand into the requested buffer.
|
| 570 |
|
|
*/
|
| 571 |
|
|
PWC_DEBUG_READ("VIDIOCMCAPTURE done.\n");
|
| 572 |
|
|
break;
|
| 573 |
|
|
}
|
| 574 |
|
|
|
| 575 |
|
|
case VIDIOCSYNC:
|
| 576 |
|
|
{
|
| 577 |
|
|
/* The doc says: "Whenever a buffer is used it should
|
| 578 |
|
|
call VIDIOCSYNC to free this frame up and continue."
|
| 579 |
|
|
|
| 580 |
|
|
The only odd thing about this whole procedure is
|
| 581 |
|
|
that MCAPTURE flags the buffer as "in use", and
|
| 582 |
|
|
SYNC immediately unmarks it, while it isn't
|
| 583 |
|
|
after SYNC that you know that the buffer actually
|
| 584 |
|
|
got filled! So you better not start a CAPTURE in
|
| 585 |
|
|
the same frame immediately (use double buffering).
|
| 586 |
|
|
This is not a problem for this cam, since it has
|
| 587 |
|
|
extra intermediate buffers, but a hardware
|
| 588 |
|
|
grabber card will then overwrite the buffer
|
| 589 |
|
|
you're working on.
|
| 590 |
|
|
*/
|
| 591 |
|
|
int *mbuf = arg;
|
| 592 |
|
|
int ret;
|
| 593 |
|
|
|
| 594 |
|
|
PWC_DEBUG_READ("VIDIOCSYNC called (%d).\n", *mbuf);
|
| 595 |
|
|
|
| 596 |
|
|
/* bounds check */
|
| 597 |
|
|
if (*mbuf < 0 || *mbuf >= pwc_mbufs)
|
| 598 |
|
|
return -EINVAL;
|
| 599 |
|
|
/* check if this buffer was requested anyway */
|
| 600 |
|
|
if (pdev->image_used[*mbuf] == 0)
|
| 601 |
|
|
return -EINVAL;
|
| 602 |
|
|
|
| 603 |
|
|
/* Add ourselves to the frame wait-queue.
|
| 604 |
|
|
|
| 605 |
|
|
FIXME: needs auditing for safety.
|
| 606 |
|
|
QUESTION: In what respect? I think that using the
|
| 607 |
|
|
frameq is safe now.
|
| 608 |
|
|
*/
|
| 609 |
|
|
add_wait_queue(&pdev->frameq, &wait);
|
| 610 |
|
|
while (pdev->full_frames == NULL) {
|
| 611 |
|
|
/* Check for unplugged/etc. here */
|
| 612 |
|
|
if (pdev->error_status) {
|
| 613 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 614 |
|
|
set_current_state(TASK_RUNNING);
|
| 615 |
|
|
return -pdev->error_status;
|
| 616 |
|
|
}
|
| 617 |
|
|
|
| 618 |
|
|
if (signal_pending(current)) {
|
| 619 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 620 |
|
|
set_current_state(TASK_RUNNING);
|
| 621 |
|
|
return -ERESTARTSYS;
|
| 622 |
|
|
}
|
| 623 |
|
|
schedule();
|
| 624 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 625 |
|
|
}
|
| 626 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 627 |
|
|
set_current_state(TASK_RUNNING);
|
| 628 |
|
|
|
| 629 |
|
|
/* The frame is ready. Expand in the image buffer
|
| 630 |
|
|
requested by the user. I don't care if you
|
| 631 |
|
|
mmap() 5 buffers and request data in this order:
|
| 632 |
|
|
buffer 4 2 3 0 1 2 3 0 4 3 1 . . .
|
| 633 |
|
|
Grabber hardware may not be so forgiving.
|
| 634 |
|
|
*/
|
| 635 |
|
|
PWC_DEBUG_READ("VIDIOCSYNC: frame ready.\n");
|
| 636 |
|
|
pdev->fill_image = *mbuf; /* tell in which buffer we want the image to be expanded */
|
| 637 |
|
|
/* Decompress, etc */
|
| 638 |
|
|
ret = pwc_handle_frame(pdev);
|
| 639 |
|
|
pdev->image_used[*mbuf] = 0;
|
| 640 |
|
|
if (ret)
|
| 641 |
|
|
return -EFAULT;
|
| 642 |
|
|
break;
|
| 643 |
|
|
}
|
| 644 |
|
|
|
| 645 |
|
|
case VIDIOCGAUDIO:
|
| 646 |
|
|
{
|
| 647 |
|
|
struct video_audio *v = arg;
|
| 648 |
|
|
|
| 649 |
|
|
strcpy(v->name, "Microphone");
|
| 650 |
|
|
v->audio = -1; /* unknown audio minor */
|
| 651 |
|
|
v->flags = 0;
|
| 652 |
|
|
v->mode = VIDEO_SOUND_MONO;
|
| 653 |
|
|
v->volume = 0;
|
| 654 |
|
|
v->bass = 0;
|
| 655 |
|
|
v->treble = 0;
|
| 656 |
|
|
v->balance = 0x8000;
|
| 657 |
|
|
v->step = 1;
|
| 658 |
|
|
break;
|
| 659 |
|
|
}
|
| 660 |
|
|
|
| 661 |
|
|
case VIDIOCSAUDIO:
|
| 662 |
|
|
{
|
| 663 |
|
|
/* Dummy: nothing can be set */
|
| 664 |
|
|
break;
|
| 665 |
|
|
}
|
| 666 |
|
|
|
| 667 |
|
|
case VIDIOCGUNIT:
|
| 668 |
|
|
{
|
| 669 |
|
|
struct video_unit *vu = arg;
|
| 670 |
|
|
|
| 671 |
|
|
vu->video = pdev->vdev->minor & 0x3F;
|
| 672 |
|
|
vu->audio = -1; /* not known yet */
|
| 673 |
|
|
vu->vbi = -1;
|
| 674 |
|
|
vu->radio = -1;
|
| 675 |
|
|
vu->teletext = -1;
|
| 676 |
|
|
break;
|
| 677 |
|
|
}
|
| 678 |
|
|
|
| 679 |
|
|
/* V4L2 Layer */
|
| 680 |
|
|
case VIDIOC_QUERYCAP:
|
| 681 |
|
|
{
|
| 682 |
|
|
struct v4l2_capability *cap = arg;
|
| 683 |
|
|
|
| 684 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCAP) This application "\
|
| 685 |
|
|
"try to use the v4l2 layer\n");
|
| 686 |
|
|
strcpy(cap->driver,PWC_NAME);
|
| 687 |
|
|
strlcpy(cap->card, vdev->name, sizeof(cap->card));
|
| 688 |
|
|
usb_make_path(pdev->udev,cap->bus_info,sizeof(cap->bus_info));
|
| 689 |
|
|
cap->version = PWC_VERSION_CODE;
|
| 690 |
|
|
cap->capabilities =
|
| 691 |
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
| 692 |
|
|
V4L2_CAP_STREAMING |
|
| 693 |
|
|
V4L2_CAP_READWRITE;
|
| 694 |
|
|
return 0;
|
| 695 |
|
|
}
|
| 696 |
|
|
|
| 697 |
|
|
case VIDIOC_ENUMINPUT:
|
| 698 |
|
|
{
|
| 699 |
|
|
struct v4l2_input *i = arg;
|
| 700 |
|
|
|
| 701 |
|
|
if ( i->index ) /* Only one INPUT is supported */
|
| 702 |
|
|
return -EINVAL;
|
| 703 |
|
|
|
| 704 |
|
|
memset(i, 0, sizeof(struct v4l2_input));
|
| 705 |
|
|
strcpy(i->name, "usb");
|
| 706 |
|
|
return 0;
|
| 707 |
|
|
}
|
| 708 |
|
|
|
| 709 |
|
|
case VIDIOC_G_INPUT:
|
| 710 |
|
|
{
|
| 711 |
|
|
int *i = arg;
|
| 712 |
|
|
*i = 0; /* Only one INPUT is supported */
|
| 713 |
|
|
return 0;
|
| 714 |
|
|
}
|
| 715 |
|
|
case VIDIOC_S_INPUT:
|
| 716 |
|
|
{
|
| 717 |
|
|
int *i = arg;
|
| 718 |
|
|
|
| 719 |
|
|
if ( *i ) { /* Only one INPUT is supported */
|
| 720 |
|
|
PWC_DEBUG_IOCTL("Only one input source is"\
|
| 721 |
|
|
" supported with this webcam.\n");
|
| 722 |
|
|
return -EINVAL;
|
| 723 |
|
|
}
|
| 724 |
|
|
return 0;
|
| 725 |
|
|
}
|
| 726 |
|
|
|
| 727 |
|
|
/* TODO: */
|
| 728 |
|
|
case VIDIOC_QUERYCTRL:
|
| 729 |
|
|
{
|
| 730 |
|
|
struct v4l2_queryctrl *c = arg;
|
| 731 |
|
|
int i;
|
| 732 |
|
|
|
| 733 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) query id=%d\n", c->id);
|
| 734 |
|
|
for (i=0; i<sizeof(pwc_controls)/sizeof(struct v4l2_queryctrl); i++) {
|
| 735 |
|
|
if (pwc_controls[i].id == c->id) {
|
| 736 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n");
|
| 737 |
|
|
memcpy(c,&pwc_controls[i],sizeof(struct v4l2_queryctrl));
|
| 738 |
|
|
return 0;
|
| 739 |
|
|
}
|
| 740 |
|
|
}
|
| 741 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) not found\n");
|
| 742 |
|
|
|
| 743 |
|
|
return -EINVAL;
|
| 744 |
|
|
}
|
| 745 |
|
|
case VIDIOC_G_CTRL:
|
| 746 |
|
|
{
|
| 747 |
|
|
struct v4l2_control *c = arg;
|
| 748 |
|
|
int ret;
|
| 749 |
|
|
|
| 750 |
|
|
switch (c->id)
|
| 751 |
|
|
{
|
| 752 |
|
|
case V4L2_CID_BRIGHTNESS:
|
| 753 |
|
|
c->value = pwc_get_brightness(pdev);
|
| 754 |
|
|
if (c->value<0)
|
| 755 |
|
|
return -EINVAL;
|
| 756 |
|
|
return 0;
|
| 757 |
|
|
case V4L2_CID_CONTRAST:
|
| 758 |
|
|
c->value = pwc_get_contrast(pdev);
|
| 759 |
|
|
if (c->value<0)
|
| 760 |
|
|
return -EINVAL;
|
| 761 |
|
|
return 0;
|
| 762 |
|
|
case V4L2_CID_SATURATION:
|
| 763 |
|
|
ret = pwc_get_saturation(pdev, &c->value);
|
| 764 |
|
|
if (ret<0)
|
| 765 |
|
|
return -EINVAL;
|
| 766 |
|
|
return 0;
|
| 767 |
|
|
case V4L2_CID_GAMMA:
|
| 768 |
|
|
c->value = pwc_get_gamma(pdev);
|
| 769 |
|
|
if (c->value<0)
|
| 770 |
|
|
return -EINVAL;
|
| 771 |
|
|
return 0;
|
| 772 |
|
|
case V4L2_CID_RED_BALANCE:
|
| 773 |
|
|
ret = pwc_get_red_gain(pdev, &c->value);
|
| 774 |
|
|
if (ret<0)
|
| 775 |
|
|
return -EINVAL;
|
| 776 |
|
|
c->value >>= 8;
|
| 777 |
|
|
return 0;
|
| 778 |
|
|
case V4L2_CID_BLUE_BALANCE:
|
| 779 |
|
|
ret = pwc_get_blue_gain(pdev, &c->value);
|
| 780 |
|
|
if (ret<0)
|
| 781 |
|
|
return -EINVAL;
|
| 782 |
|
|
c->value >>= 8;
|
| 783 |
|
|
return 0;
|
| 784 |
|
|
case V4L2_CID_AUTO_WHITE_BALANCE:
|
| 785 |
|
|
ret = pwc_get_awb(pdev);
|
| 786 |
|
|
if (ret<0)
|
| 787 |
|
|
return -EINVAL;
|
| 788 |
|
|
c->value = (ret == PWC_WB_MANUAL)?0:1;
|
| 789 |
|
|
return 0;
|
| 790 |
|
|
case V4L2_CID_GAIN:
|
| 791 |
|
|
ret = pwc_get_agc(pdev, &c->value);
|
| 792 |
|
|
if (ret<0)
|
| 793 |
|
|
return -EINVAL;
|
| 794 |
|
|
c->value >>= 8;
|
| 795 |
|
|
return 0;
|
| 796 |
|
|
case V4L2_CID_AUTOGAIN:
|
| 797 |
|
|
ret = pwc_get_agc(pdev, &c->value);
|
| 798 |
|
|
if (ret<0)
|
| 799 |
|
|
return -EINVAL;
|
| 800 |
|
|
c->value = (c->value < 0)?1:0;
|
| 801 |
|
|
return 0;
|
| 802 |
|
|
case V4L2_CID_EXPOSURE:
|
| 803 |
|
|
ret = pwc_get_shutter_speed(pdev, &c->value);
|
| 804 |
|
|
if (ret<0)
|
| 805 |
|
|
return -EINVAL;
|
| 806 |
|
|
return 0;
|
| 807 |
|
|
case V4L2_CID_PRIVATE_COLOUR_MODE:
|
| 808 |
|
|
ret = pwc_get_colour_mode(pdev, &c->value);
|
| 809 |
|
|
if (ret < 0)
|
| 810 |
|
|
return -EINVAL;
|
| 811 |
|
|
return 0;
|
| 812 |
|
|
case V4L2_CID_PRIVATE_AUTOCONTOUR:
|
| 813 |
|
|
ret = pwc_get_contour(pdev, &c->value);
|
| 814 |
|
|
if (ret < 0)
|
| 815 |
|
|
return -EINVAL;
|
| 816 |
|
|
c->value=(c->value == -1?1:0);
|
| 817 |
|
|
return 0;
|
| 818 |
|
|
case V4L2_CID_PRIVATE_CONTOUR:
|
| 819 |
|
|
ret = pwc_get_contour(pdev, &c->value);
|
| 820 |
|
|
if (ret < 0)
|
| 821 |
|
|
return -EINVAL;
|
| 822 |
|
|
c->value >>= 10;
|
| 823 |
|
|
return 0;
|
| 824 |
|
|
case V4L2_CID_PRIVATE_BACKLIGHT:
|
| 825 |
|
|
ret = pwc_get_backlight(pdev, &c->value);
|
| 826 |
|
|
if (ret < 0)
|
| 827 |
|
|
return -EINVAL;
|
| 828 |
|
|
return 0;
|
| 829 |
|
|
case V4L2_CID_PRIVATE_FLICKERLESS:
|
| 830 |
|
|
ret = pwc_get_flicker(pdev, &c->value);
|
| 831 |
|
|
if (ret < 0)
|
| 832 |
|
|
return -EINVAL;
|
| 833 |
|
|
c->value=(c->value?1:0);
|
| 834 |
|
|
return 0;
|
| 835 |
|
|
case V4L2_CID_PRIVATE_NOISE_REDUCTION:
|
| 836 |
|
|
ret = pwc_get_dynamic_noise(pdev, &c->value);
|
| 837 |
|
|
if (ret < 0)
|
| 838 |
|
|
return -EINVAL;
|
| 839 |
|
|
return 0;
|
| 840 |
|
|
|
| 841 |
|
|
case V4L2_CID_PRIVATE_SAVE_USER:
|
| 842 |
|
|
case V4L2_CID_PRIVATE_RESTORE_USER:
|
| 843 |
|
|
case V4L2_CID_PRIVATE_RESTORE_FACTORY:
|
| 844 |
|
|
return -EINVAL;
|
| 845 |
|
|
}
|
| 846 |
|
|
return -EINVAL;
|
| 847 |
|
|
}
|
| 848 |
|
|
case VIDIOC_S_CTRL:
|
| 849 |
|
|
{
|
| 850 |
|
|
struct v4l2_control *c = arg;
|
| 851 |
|
|
int ret;
|
| 852 |
|
|
|
| 853 |
|
|
switch (c->id)
|
| 854 |
|
|
{
|
| 855 |
|
|
case V4L2_CID_BRIGHTNESS:
|
| 856 |
|
|
c->value <<= 9;
|
| 857 |
|
|
ret = pwc_set_brightness(pdev, c->value);
|
| 858 |
|
|
if (ret<0)
|
| 859 |
|
|
return -EINVAL;
|
| 860 |
|
|
return 0;
|
| 861 |
|
|
case V4L2_CID_CONTRAST:
|
| 862 |
|
|
c->value <<= 10;
|
| 863 |
|
|
ret = pwc_set_contrast(pdev, c->value);
|
| 864 |
|
|
if (ret<0)
|
| 865 |
|
|
return -EINVAL;
|
| 866 |
|
|
return 0;
|
| 867 |
|
|
case V4L2_CID_SATURATION:
|
| 868 |
|
|
ret = pwc_set_saturation(pdev, c->value);
|
| 869 |
|
|
if (ret<0)
|
| 870 |
|
|
return -EINVAL;
|
| 871 |
|
|
return 0;
|
| 872 |
|
|
case V4L2_CID_GAMMA:
|
| 873 |
|
|
c->value <<= 11;
|
| 874 |
|
|
ret = pwc_set_gamma(pdev, c->value);
|
| 875 |
|
|
if (ret<0)
|
| 876 |
|
|
return -EINVAL;
|
| 877 |
|
|
return 0;
|
| 878 |
|
|
case V4L2_CID_RED_BALANCE:
|
| 879 |
|
|
c->value <<= 8;
|
| 880 |
|
|
ret = pwc_set_red_gain(pdev, c->value);
|
| 881 |
|
|
if (ret<0)
|
| 882 |
|
|
return -EINVAL;
|
| 883 |
|
|
return 0;
|
| 884 |
|
|
case V4L2_CID_BLUE_BALANCE:
|
| 885 |
|
|
c->value <<= 8;
|
| 886 |
|
|
ret = pwc_set_blue_gain(pdev, c->value);
|
| 887 |
|
|
if (ret<0)
|
| 888 |
|
|
return -EINVAL;
|
| 889 |
|
|
return 0;
|
| 890 |
|
|
case V4L2_CID_AUTO_WHITE_BALANCE:
|
| 891 |
|
|
c->value = (c->value == 0)?PWC_WB_MANUAL:PWC_WB_AUTO;
|
| 892 |
|
|
ret = pwc_set_awb(pdev, c->value);
|
| 893 |
|
|
if (ret<0)
|
| 894 |
|
|
return -EINVAL;
|
| 895 |
|
|
return 0;
|
| 896 |
|
|
case V4L2_CID_EXPOSURE:
|
| 897 |
|
|
c->value <<= 8;
|
| 898 |
|
|
ret = pwc_set_shutter_speed(pdev, c->value?0:1, c->value);
|
| 899 |
|
|
if (ret<0)
|
| 900 |
|
|
return -EINVAL;
|
| 901 |
|
|
return 0;
|
| 902 |
|
|
case V4L2_CID_AUTOGAIN:
|
| 903 |
|
|
/* autogain off means nothing without a gain */
|
| 904 |
|
|
if (c->value == 0)
|
| 905 |
|
|
return 0;
|
| 906 |
|
|
ret = pwc_set_agc(pdev, c->value, 0);
|
| 907 |
|
|
if (ret<0)
|
| 908 |
|
|
return -EINVAL;
|
| 909 |
|
|
return 0;
|
| 910 |
|
|
case V4L2_CID_GAIN:
|
| 911 |
|
|
c->value <<= 8;
|
| 912 |
|
|
ret = pwc_set_agc(pdev, 0, c->value);
|
| 913 |
|
|
if (ret<0)
|
| 914 |
|
|
return -EINVAL;
|
| 915 |
|
|
return 0;
|
| 916 |
|
|
case V4L2_CID_PRIVATE_SAVE_USER:
|
| 917 |
|
|
if (pwc_save_user(pdev))
|
| 918 |
|
|
return -EINVAL;
|
| 919 |
|
|
return 0;
|
| 920 |
|
|
case V4L2_CID_PRIVATE_RESTORE_USER:
|
| 921 |
|
|
if (pwc_restore_user(pdev))
|
| 922 |
|
|
return -EINVAL;
|
| 923 |
|
|
return 0;
|
| 924 |
|
|
case V4L2_CID_PRIVATE_RESTORE_FACTORY:
|
| 925 |
|
|
if (pwc_restore_factory(pdev))
|
| 926 |
|
|
return -EINVAL;
|
| 927 |
|
|
return 0;
|
| 928 |
|
|
case V4L2_CID_PRIVATE_COLOUR_MODE:
|
| 929 |
|
|
ret = pwc_set_colour_mode(pdev, c->value);
|
| 930 |
|
|
if (ret < 0)
|
| 931 |
|
|
return -EINVAL;
|
| 932 |
|
|
return 0;
|
| 933 |
|
|
case V4L2_CID_PRIVATE_AUTOCONTOUR:
|
| 934 |
|
|
c->value=(c->value == 1)?-1:0;
|
| 935 |
|
|
ret = pwc_set_contour(pdev, c->value);
|
| 936 |
|
|
if (ret < 0)
|
| 937 |
|
|
return -EINVAL;
|
| 938 |
|
|
return 0;
|
| 939 |
|
|
case V4L2_CID_PRIVATE_CONTOUR:
|
| 940 |
|
|
c->value <<= 10;
|
| 941 |
|
|
ret = pwc_set_contour(pdev, c->value);
|
| 942 |
|
|
if (ret < 0)
|
| 943 |
|
|
return -EINVAL;
|
| 944 |
|
|
return 0;
|
| 945 |
|
|
case V4L2_CID_PRIVATE_BACKLIGHT:
|
| 946 |
|
|
ret = pwc_set_backlight(pdev, c->value);
|
| 947 |
|
|
if (ret < 0)
|
| 948 |
|
|
return -EINVAL;
|
| 949 |
|
|
return 0;
|
| 950 |
|
|
case V4L2_CID_PRIVATE_FLICKERLESS:
|
| 951 |
|
|
ret = pwc_set_flicker(pdev, c->value);
|
| 952 |
|
|
if (ret < 0)
|
| 953 |
|
|
return -EINVAL;
|
| 954 |
|
|
case V4L2_CID_PRIVATE_NOISE_REDUCTION:
|
| 955 |
|
|
ret = pwc_set_dynamic_noise(pdev, c->value);
|
| 956 |
|
|
if (ret < 0)
|
| 957 |
|
|
return -EINVAL;
|
| 958 |
|
|
return 0;
|
| 959 |
|
|
|
| 960 |
|
|
}
|
| 961 |
|
|
return -EINVAL;
|
| 962 |
|
|
}
|
| 963 |
|
|
|
| 964 |
|
|
case VIDIOC_ENUM_FMT:
|
| 965 |
|
|
{
|
| 966 |
|
|
struct v4l2_fmtdesc *f = arg;
|
| 967 |
|
|
int index;
|
| 968 |
|
|
|
| 969 |
|
|
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 970 |
|
|
return -EINVAL;
|
| 971 |
|
|
|
| 972 |
|
|
/* We only support two format: the raw format, and YUV */
|
| 973 |
|
|
index = f->index;
|
| 974 |
|
|
memset(f,0,sizeof(struct v4l2_fmtdesc));
|
| 975 |
|
|
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
| 976 |
|
|
f->index = index;
|
| 977 |
|
|
switch(index)
|
| 978 |
|
|
{
|
| 979 |
|
|
case 0:
|
| 980 |
|
|
/* RAW format */
|
| 981 |
|
|
f->pixelformat = pdev->type<=646?V4L2_PIX_FMT_PWC1:V4L2_PIX_FMT_PWC2;
|
| 982 |
|
|
f->flags = V4L2_FMT_FLAG_COMPRESSED;
|
| 983 |
|
|
strlcpy(f->description,"Raw Philips Webcam",sizeof(f->description));
|
| 984 |
|
|
break;
|
| 985 |
|
|
case 1:
|
| 986 |
|
|
f->pixelformat = V4L2_PIX_FMT_YUV420;
|
| 987 |
|
|
strlcpy(f->description,"4:2:0, planar, Y-Cb-Cr",sizeof(f->description));
|
| 988 |
|
|
break;
|
| 989 |
|
|
default:
|
| 990 |
|
|
return -EINVAL;
|
| 991 |
|
|
}
|
| 992 |
|
|
return 0;
|
| 993 |
|
|
}
|
| 994 |
|
|
|
| 995 |
|
|
case VIDIOC_G_FMT:
|
| 996 |
|
|
{
|
| 997 |
|
|
struct v4l2_format *f = arg;
|
| 998 |
|
|
|
| 999 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",pdev->image.x,pdev->image.y);
|
| 1000 |
|
|
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 1001 |
|
|
return -EINVAL;
|
| 1002 |
|
|
|
| 1003 |
|
|
pwc_vidioc_fill_fmt(pdev, f);
|
| 1004 |
|
|
|
| 1005 |
|
|
return 0;
|
| 1006 |
|
|
}
|
| 1007 |
|
|
|
| 1008 |
|
|
case VIDIOC_TRY_FMT:
|
| 1009 |
|
|
return pwc_vidioc_try_fmt(pdev, arg);
|
| 1010 |
|
|
|
| 1011 |
|
|
case VIDIOC_S_FMT:
|
| 1012 |
|
|
return pwc_vidioc_set_fmt(pdev, arg);
|
| 1013 |
|
|
|
| 1014 |
|
|
case VIDIOC_G_STD:
|
| 1015 |
|
|
{
|
| 1016 |
|
|
v4l2_std_id *std = arg;
|
| 1017 |
|
|
*std = V4L2_STD_UNKNOWN;
|
| 1018 |
|
|
return 0;
|
| 1019 |
|
|
}
|
| 1020 |
|
|
|
| 1021 |
|
|
case VIDIOC_S_STD:
|
| 1022 |
|
|
{
|
| 1023 |
|
|
v4l2_std_id *std = arg;
|
| 1024 |
|
|
if (*std != V4L2_STD_UNKNOWN)
|
| 1025 |
|
|
return -EINVAL;
|
| 1026 |
|
|
return 0;
|
| 1027 |
|
|
}
|
| 1028 |
|
|
|
| 1029 |
|
|
case VIDIOC_ENUMSTD:
|
| 1030 |
|
|
{
|
| 1031 |
|
|
struct v4l2_standard *std = arg;
|
| 1032 |
|
|
if (std->index != 0)
|
| 1033 |
|
|
return -EINVAL;
|
| 1034 |
|
|
std->id = V4L2_STD_UNKNOWN;
|
| 1035 |
|
|
strncpy(std->name, "webcam", sizeof(std->name));
|
| 1036 |
|
|
return 0;
|
| 1037 |
|
|
}
|
| 1038 |
|
|
|
| 1039 |
|
|
case VIDIOC_REQBUFS:
|
| 1040 |
|
|
{
|
| 1041 |
|
|
struct v4l2_requestbuffers *rb = arg;
|
| 1042 |
|
|
int nbuffers;
|
| 1043 |
|
|
|
| 1044 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n",rb->count);
|
| 1045 |
|
|
if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 1046 |
|
|
return -EINVAL;
|
| 1047 |
|
|
if (rb->memory != V4L2_MEMORY_MMAP)
|
| 1048 |
|
|
return -EINVAL;
|
| 1049 |
|
|
|
| 1050 |
|
|
nbuffers = rb->count;
|
| 1051 |
|
|
if (nbuffers < 2)
|
| 1052 |
|
|
nbuffers = 2;
|
| 1053 |
|
|
else if (nbuffers > pwc_mbufs)
|
| 1054 |
|
|
nbuffers = pwc_mbufs;
|
| 1055 |
|
|
/* Force to use our # of buffers */
|
| 1056 |
|
|
rb->count = pwc_mbufs;
|
| 1057 |
|
|
return 0;
|
| 1058 |
|
|
}
|
| 1059 |
|
|
|
| 1060 |
|
|
case VIDIOC_QUERYBUF:
|
| 1061 |
|
|
{
|
| 1062 |
|
|
struct v4l2_buffer *buf = arg;
|
| 1063 |
|
|
int index;
|
| 1064 |
|
|
|
| 1065 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n",buf->index);
|
| 1066 |
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
| 1067 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n");
|
| 1068 |
|
|
return -EINVAL;
|
| 1069 |
|
|
}
|
| 1070 |
|
|
if (buf->memory != V4L2_MEMORY_MMAP) {
|
| 1071 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad memory type\n");
|
| 1072 |
|
|
return -EINVAL;
|
| 1073 |
|
|
}
|
| 1074 |
|
|
index = buf->index;
|
| 1075 |
|
|
if (index < 0 || index >= pwc_mbufs) {
|
| 1076 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf->index);
|
| 1077 |
|
|
return -EINVAL;
|
| 1078 |
|
|
}
|
| 1079 |
|
|
|
| 1080 |
|
|
memset(buf, 0, sizeof(struct v4l2_buffer));
|
| 1081 |
|
|
buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
| 1082 |
|
|
buf->index = index;
|
| 1083 |
|
|
buf->m.offset = index * pdev->len_per_image;
|
| 1084 |
|
|
if (pdev->vpalette == VIDEO_PALETTE_RAW)
|
| 1085 |
|
|
buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame);
|
| 1086 |
|
|
else
|
| 1087 |
|
|
buf->bytesused = pdev->view.size;
|
| 1088 |
|
|
buf->field = V4L2_FIELD_NONE;
|
| 1089 |
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
| 1090 |
|
|
//buf->flags = V4L2_BUF_FLAG_MAPPED;
|
| 1091 |
|
|
buf->length = pdev->len_per_image;
|
| 1092 |
|
|
|
| 1093 |
|
|
PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n",buf->index);
|
| 1094 |
|
|
PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n",buf->m.offset);
|
| 1095 |
|
|
PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n",buf->bytesused);
|
| 1096 |
|
|
|
| 1097 |
|
|
return 0;
|
| 1098 |
|
|
}
|
| 1099 |
|
|
|
| 1100 |
|
|
case VIDIOC_QBUF:
|
| 1101 |
|
|
{
|
| 1102 |
|
|
struct v4l2_buffer *buf = arg;
|
| 1103 |
|
|
|
| 1104 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n",buf->index);
|
| 1105 |
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 1106 |
|
|
return -EINVAL;
|
| 1107 |
|
|
if (buf->memory != V4L2_MEMORY_MMAP)
|
| 1108 |
|
|
return -EINVAL;
|
| 1109 |
|
|
if (buf->index < 0 || buf->index >= pwc_mbufs)
|
| 1110 |
|
|
return -EINVAL;
|
| 1111 |
|
|
|
| 1112 |
|
|
buf->flags |= V4L2_BUF_FLAG_QUEUED;
|
| 1113 |
|
|
buf->flags &= ~V4L2_BUF_FLAG_DONE;
|
| 1114 |
|
|
|
| 1115 |
|
|
return 0;
|
| 1116 |
|
|
}
|
| 1117 |
|
|
|
| 1118 |
|
|
case VIDIOC_DQBUF:
|
| 1119 |
|
|
{
|
| 1120 |
|
|
struct v4l2_buffer *buf = arg;
|
| 1121 |
|
|
int ret;
|
| 1122 |
|
|
|
| 1123 |
|
|
PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n");
|
| 1124 |
|
|
|
| 1125 |
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 1126 |
|
|
return -EINVAL;
|
| 1127 |
|
|
|
| 1128 |
|
|
/* Add ourselves to the frame wait-queue.
|
| 1129 |
|
|
|
| 1130 |
|
|
FIXME: needs auditing for safety.
|
| 1131 |
|
|
QUESTION: In what respect? I think that using the
|
| 1132 |
|
|
frameq is safe now.
|
| 1133 |
|
|
*/
|
| 1134 |
|
|
add_wait_queue(&pdev->frameq, &wait);
|
| 1135 |
|
|
while (pdev->full_frames == NULL) {
|
| 1136 |
|
|
if (pdev->error_status) {
|
| 1137 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 1138 |
|
|
set_current_state(TASK_RUNNING);
|
| 1139 |
|
|
return -pdev->error_status;
|
| 1140 |
|
|
}
|
| 1141 |
|
|
|
| 1142 |
|
|
if (signal_pending(current)) {
|
| 1143 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 1144 |
|
|
set_current_state(TASK_RUNNING);
|
| 1145 |
|
|
return -ERESTARTSYS;
|
| 1146 |
|
|
}
|
| 1147 |
|
|
schedule();
|
| 1148 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 1149 |
|
|
}
|
| 1150 |
|
|
remove_wait_queue(&pdev->frameq, &wait);
|
| 1151 |
|
|
set_current_state(TASK_RUNNING);
|
| 1152 |
|
|
|
| 1153 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n");
|
| 1154 |
|
|
/* Decompress data in pdev->images[pdev->fill_image] */
|
| 1155 |
|
|
ret = pwc_handle_frame(pdev);
|
| 1156 |
|
|
if (ret)
|
| 1157 |
|
|
return -EFAULT;
|
| 1158 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n");
|
| 1159 |
|
|
|
| 1160 |
|
|
buf->index = pdev->fill_image;
|
| 1161 |
|
|
if (pdev->vpalette == VIDEO_PALETTE_RAW)
|
| 1162 |
|
|
buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame);
|
| 1163 |
|
|
else
|
| 1164 |
|
|
buf->bytesused = pdev->view.size;
|
| 1165 |
|
|
buf->flags = V4L2_BUF_FLAG_MAPPED;
|
| 1166 |
|
|
buf->field = V4L2_FIELD_NONE;
|
| 1167 |
|
|
do_gettimeofday(&buf->timestamp);
|
| 1168 |
|
|
buf->sequence = 0;
|
| 1169 |
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
| 1170 |
|
|
buf->m.offset = pdev->fill_image * pdev->len_per_image;
|
| 1171 |
|
|
buf->length = pdev->len_per_image;
|
| 1172 |
|
|
pwc_next_image(pdev);
|
| 1173 |
|
|
|
| 1174 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n",buf->index);
|
| 1175 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n",buf->length);
|
| 1176 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n",buf->m.offset);
|
| 1177 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n",buf->bytesused);
|
| 1178 |
|
|
PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n");
|
| 1179 |
|
|
return 0;
|
| 1180 |
|
|
|
| 1181 |
|
|
}
|
| 1182 |
|
|
|
| 1183 |
|
|
case VIDIOC_STREAMON:
|
| 1184 |
|
|
{
|
| 1185 |
|
|
/* WARNING: pwc_try_video_mode() called pwc_isoc_init */
|
| 1186 |
|
|
pwc_isoc_init(pdev);
|
| 1187 |
|
|
return 0;
|
| 1188 |
|
|
}
|
| 1189 |
|
|
|
| 1190 |
|
|
case VIDIOC_STREAMOFF:
|
| 1191 |
|
|
{
|
| 1192 |
|
|
pwc_isoc_cleanup(pdev);
|
| 1193 |
|
|
return 0;
|
| 1194 |
|
|
}
|
| 1195 |
|
|
|
| 1196 |
|
|
case VIDIOC_ENUM_FRAMESIZES:
|
| 1197 |
|
|
{
|
| 1198 |
|
|
struct v4l2_frmsizeenum *fsize = arg;
|
| 1199 |
|
|
unsigned int i = 0, index = fsize->index;
|
| 1200 |
|
|
|
| 1201 |
|
|
if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) {
|
| 1202 |
|
|
for (i = 0; i < PSZ_MAX; i++) {
|
| 1203 |
|
|
if (pdev->image_mask & (1UL << i)) {
|
| 1204 |
|
|
if (!index--) {
|
| 1205 |
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
| 1206 |
|
|
fsize->discrete.width = pwc_image_sizes[i].x;
|
| 1207 |
|
|
fsize->discrete.height = pwc_image_sizes[i].y;
|
| 1208 |
|
|
return 0;
|
| 1209 |
|
|
}
|
| 1210 |
|
|
}
|
| 1211 |
|
|
}
|
| 1212 |
|
|
} else if (fsize->index == 0 &&
|
| 1213 |
|
|
((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) ||
|
| 1214 |
|
|
(fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) {
|
| 1215 |
|
|
|
| 1216 |
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
| 1217 |
|
|
fsize->discrete.width = pdev->abs_max.x;
|
| 1218 |
|
|
fsize->discrete.height = pdev->abs_max.y;
|
| 1219 |
|
|
return 0;
|
| 1220 |
|
|
}
|
| 1221 |
|
|
return -EINVAL;
|
| 1222 |
|
|
}
|
| 1223 |
|
|
|
| 1224 |
|
|
case VIDIOC_ENUM_FRAMEINTERVALS:
|
| 1225 |
|
|
{
|
| 1226 |
|
|
struct v4l2_frmivalenum *fival = arg;
|
| 1227 |
|
|
int size = -1;
|
| 1228 |
|
|
unsigned int i;
|
| 1229 |
|
|
|
| 1230 |
|
|
for (i = 0; i < PSZ_MAX; i++) {
|
| 1231 |
|
|
if (pwc_image_sizes[i].x == fival->width &&
|
| 1232 |
|
|
pwc_image_sizes[i].y == fival->height) {
|
| 1233 |
|
|
size = i;
|
| 1234 |
|
|
break;
|
| 1235 |
|
|
}
|
| 1236 |
|
|
}
|
| 1237 |
|
|
|
| 1238 |
|
|
/* TODO: Support raw format */
|
| 1239 |
|
|
if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) {
|
| 1240 |
|
|
return -EINVAL;
|
| 1241 |
|
|
}
|
| 1242 |
|
|
|
| 1243 |
|
|
i = pwc_get_fps(pdev, fival->index, size);
|
| 1244 |
|
|
if (!i)
|
| 1245 |
|
|
return -EINVAL;
|
| 1246 |
|
|
|
| 1247 |
|
|
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
|
| 1248 |
|
|
fival->discrete.numerator = 1;
|
| 1249 |
|
|
fival->discrete.denominator = i;
|
| 1250 |
|
|
|
| 1251 |
|
|
return 0;
|
| 1252 |
|
|
}
|
| 1253 |
|
|
|
| 1254 |
|
|
default:
|
| 1255 |
|
|
return pwc_ioctl(pdev, cmd, arg);
|
| 1256 |
|
|
} /* ..switch */
|
| 1257 |
|
|
return 0;
|
| 1258 |
|
|
}
|
| 1259 |
|
|
|
| 1260 |
|
|
/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
|
