7e28adb249
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2154 lines
55 KiB
C
2154 lines
55 KiB
C
/*
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* Video capture interface for Linux version 2
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*
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* A generic video device interface for the LINUX operating system
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* using a set of device structures/vectors for low level operations.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Alan Cox, <alan@redhat.com> (version 1)
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* Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
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*
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* Fixes: 20000516 Claudio Matsuoka <claudio@conectiva.com>
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* - Added procfs support
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*/
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#define dbgarg(cmd, fmt, arg...) \
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if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \
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printk (KERN_DEBUG "%s: ", vfd->name); \
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v4l_printk_ioctl(cmd); \
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printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg); \
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}
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#define dbgarg2(fmt, arg...) \
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if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
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printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg);
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kmod.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#define __OLD_VIDIOC_ /* To allow fixing old calls*/
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#include <linux/videodev2.h>
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#ifdef CONFIG_VIDEO_V4L1
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#include <linux/videodev.h>
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#endif
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#include <media/v4l2-common.h>
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#include <linux/video_decoder.h>
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#define VIDEO_NUM_DEVICES 256
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#define VIDEO_NAME "video4linux"
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/* video4linux standard ID conversion to standard name
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*/
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char *v4l2_norm_to_name(v4l2_std_id id)
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{
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char *name;
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u32 myid = id;
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/* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
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64 bit comparations. So, on that architecture, with some gcc
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variants, compilation fails. Currently, the max value is 30bit wide.
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*/
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BUG_ON(myid != id);
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switch (myid) {
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case V4L2_STD_PAL:
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name = "PAL";
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break;
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case V4L2_STD_PAL_BG:
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name = "PAL-BG";
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break;
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case V4L2_STD_PAL_DK:
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name = "PAL-DK";
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break;
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case V4L2_STD_PAL_B:
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name = "PAL-B";
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break;
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case V4L2_STD_PAL_B1:
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name = "PAL-B1";
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break;
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case V4L2_STD_PAL_G:
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name = "PAL-G";
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break;
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case V4L2_STD_PAL_H:
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name = "PAL-H";
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break;
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case V4L2_STD_PAL_I:
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name = "PAL-I";
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break;
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case V4L2_STD_PAL_D:
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name = "PAL-D";
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break;
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case V4L2_STD_PAL_D1:
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name = "PAL-D1";
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break;
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case V4L2_STD_PAL_K:
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name = "PAL-K";
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break;
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case V4L2_STD_PAL_M:
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name = "PAL-M";
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break;
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case V4L2_STD_PAL_N:
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name = "PAL-N";
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break;
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case V4L2_STD_PAL_Nc:
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name = "PAL-Nc";
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break;
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case V4L2_STD_PAL_60:
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name = "PAL-60";
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break;
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case V4L2_STD_NTSC:
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name = "NTSC";
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break;
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case V4L2_STD_NTSC_M:
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name = "NTSC-M";
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break;
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case V4L2_STD_NTSC_M_JP:
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name = "NTSC-M-JP";
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break;
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case V4L2_STD_NTSC_443:
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name = "NTSC-443";
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break;
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case V4L2_STD_NTSC_M_KR:
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name = "NTSC-M-KR";
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break;
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case V4L2_STD_SECAM:
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name = "SECAM";
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break;
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case V4L2_STD_SECAM_DK:
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name = "SECAM-DK";
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break;
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case V4L2_STD_SECAM_B:
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name = "SECAM-B";
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break;
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case V4L2_STD_SECAM_D:
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name = "SECAM-D";
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break;
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case V4L2_STD_SECAM_G:
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name = "SECAM-G";
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break;
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case V4L2_STD_SECAM_H:
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name = "SECAM-H";
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break;
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case V4L2_STD_SECAM_K:
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name = "SECAM-K";
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break;
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case V4L2_STD_SECAM_K1:
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name = "SECAM-K1";
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break;
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case V4L2_STD_SECAM_L:
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name = "SECAM-L";
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break;
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case V4L2_STD_SECAM_LC:
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name = "SECAM-LC";
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break;
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default:
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name = "Unknown";
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break;
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}
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return name;
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}
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EXPORT_SYMBOL(v4l2_norm_to_name);
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/* Fill in the fields of a v4l2_standard structure according to the
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'id' and 'transmission' parameters. Returns negative on error. */
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int v4l2_video_std_construct(struct v4l2_standard *vs,
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int id, char *name)
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{
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u32 index = vs->index;
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memset(vs, 0, sizeof(struct v4l2_standard));
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vs->index = index;
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vs->id = id;
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if (id & V4L2_STD_525_60) {
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vs->frameperiod.numerator = 1001;
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vs->frameperiod.denominator = 30000;
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vs->framelines = 525;
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} else {
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vs->frameperiod.numerator = 1;
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vs->frameperiod.denominator = 25;
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vs->framelines = 625;
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}
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strlcpy(vs->name, name, sizeof(vs->name));
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return 0;
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}
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EXPORT_SYMBOL(v4l2_video_std_construct);
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/* ----------------------------------------------------------------- */
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/* some arrays for pretty-printing debug messages of enum types */
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char *v4l2_field_names[] = {
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[V4L2_FIELD_ANY] = "any",
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[V4L2_FIELD_NONE] = "none",
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[V4L2_FIELD_TOP] = "top",
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[V4L2_FIELD_BOTTOM] = "bottom",
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[V4L2_FIELD_INTERLACED] = "interlaced",
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[V4L2_FIELD_SEQ_TB] = "seq-tb",
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[V4L2_FIELD_SEQ_BT] = "seq-bt",
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[V4L2_FIELD_ALTERNATE] = "alternate",
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[V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
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[V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
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};
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EXPORT_SYMBOL(v4l2_field_names);
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char *v4l2_type_names[] = {
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[V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
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[V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
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[V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
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[V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
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[V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
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[V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
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[V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
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[V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over",
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};
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EXPORT_SYMBOL(v4l2_type_names);
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static char *v4l2_memory_names[] = {
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[V4L2_MEMORY_MMAP] = "mmap",
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[V4L2_MEMORY_USERPTR] = "userptr",
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[V4L2_MEMORY_OVERLAY] = "overlay",
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};
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#define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \
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arr[a] : "unknown")
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/* ------------------------------------------------------------------ */
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/* debug help functions */
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#ifdef CONFIG_VIDEO_V4L1_COMPAT
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static const char *v4l1_ioctls[] = {
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[_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP",
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[_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN",
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[_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN",
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[_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER",
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[_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER",
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[_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT",
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[_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT",
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[_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE",
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[_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN",
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[_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN",
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[_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF",
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[_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF",
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[_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY",
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[_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ",
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[_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ",
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[_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO",
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[_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO",
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[_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC",
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[_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE",
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[_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF",
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[_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT",
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[_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE",
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[_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE",
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[_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE",
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[_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
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[_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO",
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[_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
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[_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT",
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[_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT"
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};
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#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
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#endif
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static const char *v4l2_ioctls[] = {
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[_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP",
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[_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED",
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[_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT",
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[_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT",
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[_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT",
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[_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS",
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[_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF",
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[_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF",
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[_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF",
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[_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY",
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[_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF",
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[_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
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[_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON",
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[_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF",
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[_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM",
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[_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM",
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[_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD",
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[_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD",
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[_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD",
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[_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT",
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[_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL",
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[_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL",
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[_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER",
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[_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER",
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[_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO",
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[_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO",
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[_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL",
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[_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU",
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[_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT",
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[_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT",
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[_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT",
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[_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT",
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[_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
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[_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
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[_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
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[_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
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[_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
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[_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
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[_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
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[_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
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[_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
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[_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
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[_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
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[_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
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[_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
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[_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
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[_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO",
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[_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
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[_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
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[_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
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[_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
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[_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS",
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[_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS",
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[_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS",
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[_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS",
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#if 1
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[_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES",
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[_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS",
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[_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX",
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[_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD",
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[_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD",
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[_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER",
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[_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER",
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[_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT",
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#endif
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};
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#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
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|
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static const char *v4l2_int_ioctls[] = {
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|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
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[_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES",
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|
[_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS",
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[_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM",
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[_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT",
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[_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT",
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[_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT",
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[_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE",
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[_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO",
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[_IOC_NR(DECODER_INIT)] = "DECODER_INIT",
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[_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS",
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[_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP",
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#endif
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[_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO",
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|
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[_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR",
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[_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY",
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[_IOC_NR(TUNER_SET_CONFIG)] = "TUNER_SET_CONFIG",
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[_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE",
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[_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET",
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[_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
|
|
[_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE",
|
|
[_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA",
|
|
[_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA",
|
|
[_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ",
|
|
[_IOC_NR(VIDIOC_INT_S_STANDBY)] = "VIDIOC_INT_S_STANDBY",
|
|
[_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING",
|
|
[_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING",
|
|
[_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING",
|
|
[_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING",
|
|
[_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ",
|
|
[_IOC_NR(VIDIOC_INT_INIT)] = "VIDIOC_INT_INIT",
|
|
[_IOC_NR(VIDIOC_INT_G_STD_OUTPUT)] = "VIDIOC_INT_G_STD_OUTPUT",
|
|
[_IOC_NR(VIDIOC_INT_S_STD_OUTPUT)] = "VIDIOC_INT_S_STD_OUTPUT",
|
|
};
|
|
#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
|
|
|
|
/* Common ioctl debug function. This function can be used by
|
|
external ioctl messages as well as internal V4L ioctl */
|
|
void v4l_printk_ioctl(unsigned int cmd)
|
|
{
|
|
char *dir;
|
|
|
|
switch (_IOC_DIR(cmd)) {
|
|
case _IOC_NONE: dir = "--"; break;
|
|
case _IOC_READ: dir = "r-"; break;
|
|
case _IOC_WRITE: dir = "-w"; break;
|
|
case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
|
|
default: dir = "*ERR*"; break;
|
|
}
|
|
switch (_IOC_TYPE(cmd)) {
|
|
case 'd':
|
|
printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
|
|
(_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
|
|
v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
|
|
break;
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
case 'v':
|
|
printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
|
|
(_IOC_NR(cmd) < V4L1_IOCTLS) ?
|
|
v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
|
|
break;
|
|
#endif
|
|
case 'V':
|
|
printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
|
|
(_IOC_NR(cmd) < V4L2_IOCTLS) ?
|
|
v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
|
|
break;
|
|
|
|
default:
|
|
printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
|
|
_IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(v4l_printk_ioctl);
|
|
|
|
/*
|
|
* sysfs stuff
|
|
*/
|
|
|
|
static ssize_t show_name(struct device *cd,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct video_device *vfd = container_of(cd, struct video_device,
|
|
class_dev);
|
|
return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name);
|
|
}
|
|
|
|
struct video_device *video_device_alloc(void)
|
|
{
|
|
struct video_device *vfd;
|
|
|
|
vfd = kzalloc(sizeof(*vfd),GFP_KERNEL);
|
|
return vfd;
|
|
}
|
|
EXPORT_SYMBOL(video_device_alloc);
|
|
|
|
void video_device_release(struct video_device *vfd)
|
|
{
|
|
kfree(vfd);
|
|
}
|
|
EXPORT_SYMBOL(video_device_release);
|
|
|
|
static void video_release(struct device *cd)
|
|
{
|
|
struct video_device *vfd = container_of(cd, struct video_device,
|
|
class_dev);
|
|
|
|
#if 1
|
|
/* needed until all drivers are fixed */
|
|
if (!vfd->release)
|
|
return;
|
|
#endif
|
|
vfd->release(vfd);
|
|
}
|
|
|
|
static struct device_attribute video_device_attrs[] = {
|
|
__ATTR(name, S_IRUGO, show_name, NULL),
|
|
__ATTR_NULL
|
|
};
|
|
|
|
static struct class video_class = {
|
|
.name = VIDEO_NAME,
|
|
.dev_attrs = video_device_attrs,
|
|
.dev_release = video_release,
|
|
};
|
|
|
|
/*
|
|
* Active devices
|
|
*/
|
|
|
|
static struct video_device *video_device[VIDEO_NUM_DEVICES];
|
|
static DEFINE_MUTEX(videodev_lock);
|
|
|
|
struct video_device* video_devdata(struct file *file)
|
|
{
|
|
return video_device[iminor(file->f_path.dentry->d_inode)];
|
|
}
|
|
EXPORT_SYMBOL(video_devdata);
|
|
|
|
/*
|
|
* Open a video device - FIXME: Obsoleted
|
|
*/
|
|
static int video_open(struct inode *inode, struct file *file)
|
|
{
|
|
unsigned int minor = iminor(inode);
|
|
int err = 0;
|
|
struct video_device *vfl;
|
|
const struct file_operations *old_fops;
|
|
|
|
if(minor>=VIDEO_NUM_DEVICES)
|
|
return -ENODEV;
|
|
mutex_lock(&videodev_lock);
|
|
vfl=video_device[minor];
|
|
if(vfl==NULL) {
|
|
mutex_unlock(&videodev_lock);
|
|
request_module("char-major-%d-%d", VIDEO_MAJOR, minor);
|
|
mutex_lock(&videodev_lock);
|
|
vfl=video_device[minor];
|
|
if (vfl==NULL) {
|
|
mutex_unlock(&videodev_lock);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
old_fops = file->f_op;
|
|
file->f_op = fops_get(vfl->fops);
|
|
if(file->f_op->open)
|
|
err = file->f_op->open(inode,file);
|
|
if (err) {
|
|
fops_put(file->f_op);
|
|
file->f_op = fops_get(old_fops);
|
|
}
|
|
fops_put(old_fops);
|
|
mutex_unlock(&videodev_lock);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* helper function -- handles userspace copying for ioctl arguments
|
|
*/
|
|
|
|
#ifdef __OLD_VIDIOC_
|
|
static unsigned int
|
|
video_fix_command(unsigned int cmd)
|
|
{
|
|
switch (cmd) {
|
|
case VIDIOC_OVERLAY_OLD:
|
|
cmd = VIDIOC_OVERLAY;
|
|
break;
|
|
case VIDIOC_S_PARM_OLD:
|
|
cmd = VIDIOC_S_PARM;
|
|
break;
|
|
case VIDIOC_S_CTRL_OLD:
|
|
cmd = VIDIOC_S_CTRL;
|
|
break;
|
|
case VIDIOC_G_AUDIO_OLD:
|
|
cmd = VIDIOC_G_AUDIO;
|
|
break;
|
|
case VIDIOC_G_AUDOUT_OLD:
|
|
cmd = VIDIOC_G_AUDOUT;
|
|
break;
|
|
case VIDIOC_CROPCAP_OLD:
|
|
cmd = VIDIOC_CROPCAP;
|
|
break;
|
|
}
|
|
return cmd;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Obsolete usercopy function - Should be removed soon
|
|
*/
|
|
int
|
|
video_usercopy(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg,
|
|
int (*func)(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg))
|
|
{
|
|
char sbuf[128];
|
|
void *mbuf = NULL;
|
|
void *parg = NULL;
|
|
int err = -EINVAL;
|
|
int is_ext_ctrl;
|
|
size_t ctrls_size = 0;
|
|
void __user *user_ptr = NULL;
|
|
|
|
#ifdef __OLD_VIDIOC_
|
|
cmd = video_fix_command(cmd);
|
|
#endif
|
|
is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
|
|
cmd == VIDIOC_TRY_EXT_CTRLS);
|
|
|
|
/* Copy arguments into temp kernel buffer */
|
|
switch (_IOC_DIR(cmd)) {
|
|
case _IOC_NONE:
|
|
parg = NULL;
|
|
break;
|
|
case _IOC_READ:
|
|
case _IOC_WRITE:
|
|
case (_IOC_WRITE | _IOC_READ):
|
|
if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
|
|
parg = sbuf;
|
|
} else {
|
|
/* too big to allocate from stack */
|
|
mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
|
|
if (NULL == mbuf)
|
|
return -ENOMEM;
|
|
parg = mbuf;
|
|
}
|
|
|
|
err = -EFAULT;
|
|
if (_IOC_DIR(cmd) & _IOC_WRITE)
|
|
if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
|
|
goto out;
|
|
break;
|
|
}
|
|
if (is_ext_ctrl) {
|
|
struct v4l2_ext_controls *p = parg;
|
|
|
|
/* In case of an error, tell the caller that it wasn't
|
|
a specific control that caused it. */
|
|
p->error_idx = p->count;
|
|
user_ptr = (void __user *)p->controls;
|
|
if (p->count) {
|
|
ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
|
|
/* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
|
|
mbuf = kmalloc(ctrls_size, GFP_KERNEL);
|
|
err = -ENOMEM;
|
|
if (NULL == mbuf)
|
|
goto out_ext_ctrl;
|
|
err = -EFAULT;
|
|
if (copy_from_user(mbuf, user_ptr, ctrls_size))
|
|
goto out_ext_ctrl;
|
|
p->controls = mbuf;
|
|
}
|
|
}
|
|
|
|
/* call driver */
|
|
err = func(inode, file, cmd, parg);
|
|
if (err == -ENOIOCTLCMD)
|
|
err = -EINVAL;
|
|
if (is_ext_ctrl) {
|
|
struct v4l2_ext_controls *p = parg;
|
|
|
|
p->controls = (void *)user_ptr;
|
|
if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
|
|
err = -EFAULT;
|
|
goto out_ext_ctrl;
|
|
}
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
out_ext_ctrl:
|
|
/* Copy results into user buffer */
|
|
switch (_IOC_DIR(cmd))
|
|
{
|
|
case _IOC_READ:
|
|
case (_IOC_WRITE | _IOC_READ):
|
|
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
|
|
err = -EFAULT;
|
|
break;
|
|
}
|
|
|
|
out:
|
|
kfree(mbuf);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(video_usercopy);
|
|
|
|
/*
|
|
* open/release helper functions -- handle exclusive opens
|
|
* Should be removed soon
|
|
*/
|
|
int video_exclusive_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *vfl = video_devdata(file);
|
|
int retval = 0;
|
|
|
|
mutex_lock(&vfl->lock);
|
|
if (vfl->users) {
|
|
retval = -EBUSY;
|
|
} else {
|
|
vfl->users++;
|
|
}
|
|
mutex_unlock(&vfl->lock);
|
|
return retval;
|
|
}
|
|
EXPORT_SYMBOL(video_exclusive_open);
|
|
|
|
int video_exclusive_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *vfl = video_devdata(file);
|
|
|
|
vfl->users--;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(video_exclusive_release);
|
|
|
|
static void dbgbuf(unsigned int cmd, struct video_device *vfd,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct v4l2_timecode *tc=&p->timecode;
|
|
|
|
dbgarg (cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, "
|
|
"bytesused=%d, flags=0x%08d, "
|
|
"field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n",
|
|
(p->timestamp.tv_sec/3600),
|
|
(int)(p->timestamp.tv_sec/60)%60,
|
|
(int)(p->timestamp.tv_sec%60),
|
|
p->timestamp.tv_usec,
|
|
p->index,
|
|
prt_names(p->type, v4l2_type_names),
|
|
p->bytesused, p->flags,
|
|
p->field, p->sequence,
|
|
prt_names(p->memory, v4l2_memory_names),
|
|
p->m.userptr, p->length);
|
|
dbgarg2 ("timecode= %02d:%02d:%02d type=%d, "
|
|
"flags=0x%08d, frames=%d, userbits=0x%08x\n",
|
|
tc->hours,tc->minutes,tc->seconds,
|
|
tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits);
|
|
}
|
|
|
|
static inline void dbgrect(struct video_device *vfd, char *s,
|
|
struct v4l2_rect *r)
|
|
{
|
|
dbgarg2 ("%sRect start at %dx%d, size= %dx%d\n", s, r->left, r->top,
|
|
r->width, r->height);
|
|
};
|
|
|
|
static inline void v4l_print_pix_fmt (struct video_device *vfd,
|
|
struct v4l2_pix_format *fmt)
|
|
{
|
|
dbgarg2 ("width=%d, height=%d, format=%c%c%c%c, field=%s, "
|
|
"bytesperline=%d sizeimage=%d, colorspace=%d\n",
|
|
fmt->width,fmt->height,
|
|
(fmt->pixelformat & 0xff),
|
|
(fmt->pixelformat >> 8) & 0xff,
|
|
(fmt->pixelformat >> 16) & 0xff,
|
|
(fmt->pixelformat >> 24) & 0xff,
|
|
prt_names(fmt->field, v4l2_field_names),
|
|
fmt->bytesperline, fmt->sizeimage, fmt->colorspace);
|
|
};
|
|
|
|
|
|
static int check_fmt (struct video_device *vfd, enum v4l2_buf_type type)
|
|
{
|
|
switch (type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_cap)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (vfd->vidioc_try_fmt_overlay)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_vbi)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_vbi_capture)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_video_output)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
|
if (vfd->vidioc_try_fmt_output_overlay)
|
|
return (0);
|
|
break;
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
|
if (vfd->vidioc_try_fmt_type_private)
|
|
return (0);
|
|
break;
|
|
}
|
|
return (-EINVAL);
|
|
}
|
|
|
|
static int __video_do_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct video_device *vfd = video_devdata(file);
|
|
void *fh = file->private_data;
|
|
int ret = -EINVAL;
|
|
|
|
if ( (vfd->debug & V4L2_DEBUG_IOCTL) &&
|
|
!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) {
|
|
v4l_print_ioctl(vfd->name, cmd);
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
/***********************************************************
|
|
Handles calls to the obsoleted V4L1 API
|
|
Due to the nature of VIDIOCGMBUF, each driver that supports
|
|
V4L1 should implement its own handler for this ioctl.
|
|
***********************************************************/
|
|
|
|
/* --- streaming capture ------------------------------------- */
|
|
if (cmd == VIDIOCGMBUF) {
|
|
struct video_mbuf *p=arg;
|
|
|
|
memset(p, 0, sizeof(*p));
|
|
|
|
if (!vfd->vidiocgmbuf)
|
|
return ret;
|
|
ret=vfd->vidiocgmbuf(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n",
|
|
p->size, p->frames,
|
|
(unsigned long)p->offsets);
|
|
return ret;
|
|
}
|
|
|
|
/********************************************************
|
|
All other V4L1 calls are handled by v4l1_compat module.
|
|
Those calls will be translated into V4L2 calls, and
|
|
__video_do_ioctl will be called again, with one or more
|
|
V4L2 ioctls.
|
|
********************************************************/
|
|
if (_IOC_TYPE(cmd)=='v')
|
|
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
|
|
__video_do_ioctl);
|
|
#endif
|
|
|
|
switch(cmd) {
|
|
/* --- capabilities ------------------------------------------ */
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *cap = (struct v4l2_capability*)arg;
|
|
memset(cap, 0, sizeof(*cap));
|
|
|
|
if (!vfd->vidioc_querycap)
|
|
break;
|
|
|
|
ret=vfd->vidioc_querycap(file, fh, cap);
|
|
if (!ret)
|
|
dbgarg (cmd, "driver=%s, card=%s, bus=%s, "
|
|
"version=0x%08x, "
|
|
"capabilities=0x%08x\n",
|
|
cap->driver,cap->card,cap->bus_info,
|
|
cap->version,
|
|
cap->capabilities);
|
|
break;
|
|
}
|
|
|
|
/* --- priority ------------------------------------------ */
|
|
case VIDIOC_G_PRIORITY:
|
|
{
|
|
enum v4l2_priority *p=arg;
|
|
|
|
if (!vfd->vidioc_g_priority)
|
|
break;
|
|
ret=vfd->vidioc_g_priority(file, fh, p);
|
|
if (!ret)
|
|
dbgarg(cmd, "priority is %d\n", *p);
|
|
break;
|
|
}
|
|
case VIDIOC_S_PRIORITY:
|
|
{
|
|
enum v4l2_priority *p=arg;
|
|
|
|
if (!vfd->vidioc_s_priority)
|
|
break;
|
|
dbgarg(cmd, "setting priority to %d\n", *p);
|
|
ret=vfd->vidioc_s_priority(file, fh, *p);
|
|
break;
|
|
}
|
|
|
|
/* --- capture ioctls ---------------------------------------- */
|
|
case VIDIOC_ENUM_FMT:
|
|
{
|
|
struct v4l2_fmtdesc *f = arg;
|
|
enum v4l2_buf_type type;
|
|
unsigned int index;
|
|
|
|
index = f->index;
|
|
type = f->type;
|
|
memset(f,0,sizeof(*f));
|
|
f->index = index;
|
|
f->type = type;
|
|
|
|
switch (type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (vfd->vidioc_enum_fmt_cap)
|
|
ret=vfd->vidioc_enum_fmt_cap(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (vfd->vidioc_enum_fmt_overlay)
|
|
ret=vfd->vidioc_enum_fmt_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (vfd->vidioc_enum_fmt_vbi)
|
|
ret=vfd->vidioc_enum_fmt_vbi(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
|
if (vfd->vidioc_enum_fmt_vbi_output)
|
|
ret=vfd->vidioc_enum_fmt_vbi_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
if (vfd->vidioc_enum_fmt_vbi_capture)
|
|
ret=vfd->vidioc_enum_fmt_vbi_capture(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (vfd->vidioc_enum_fmt_video_output)
|
|
ret=vfd->vidioc_enum_fmt_video_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
|
if (vfd->vidioc_enum_fmt_vbi_output)
|
|
ret=vfd->vidioc_enum_fmt_vbi_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
|
if (vfd->vidioc_enum_fmt_output_overlay)
|
|
ret=vfd->vidioc_enum_fmt_output_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
|
if (vfd->vidioc_enum_fmt_type_private)
|
|
ret=vfd->vidioc_enum_fmt_type_private(file,
|
|
fh, f);
|
|
break;
|
|
}
|
|
if (!ret)
|
|
dbgarg (cmd, "index=%d, type=%d, flags=%d, "
|
|
"pixelformat=%c%c%c%c, description='%s'\n",
|
|
f->index, f->type, f->flags,
|
|
(f->pixelformat & 0xff),
|
|
(f->pixelformat >> 8) & 0xff,
|
|
(f->pixelformat >> 16) & 0xff,
|
|
(f->pixelformat >> 24) & 0xff,
|
|
f->description);
|
|
break;
|
|
}
|
|
case VIDIOC_G_FMT:
|
|
{
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
|
enum v4l2_buf_type type=f->type;
|
|
|
|
memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
|
|
f->type=type;
|
|
|
|
/* FIXME: Should be one dump per type */
|
|
dbgarg (cmd, "type=%s\n", prt_names(type,
|
|
v4l2_type_names));
|
|
|
|
switch (type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (vfd->vidioc_g_fmt_cap)
|
|
ret=vfd->vidioc_g_fmt_cap(file, fh, f);
|
|
if (!ret)
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (vfd->vidioc_g_fmt_overlay)
|
|
ret=vfd->vidioc_g_fmt_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (vfd->vidioc_g_fmt_vbi)
|
|
ret=vfd->vidioc_g_fmt_vbi(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
|
if (vfd->vidioc_g_fmt_vbi_output)
|
|
ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
if (vfd->vidioc_g_fmt_vbi_capture)
|
|
ret=vfd->vidioc_g_fmt_vbi_capture(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (vfd->vidioc_g_fmt_video_output)
|
|
ret=vfd->vidioc_g_fmt_video_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
|
if (vfd->vidioc_g_fmt_output_overlay)
|
|
ret=vfd->vidioc_g_fmt_output_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
|
if (vfd->vidioc_g_fmt_vbi_output)
|
|
ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
|
if (vfd->vidioc_g_fmt_type_private)
|
|
ret=vfd->vidioc_g_fmt_type_private(file,
|
|
fh, f);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case VIDIOC_S_FMT:
|
|
{
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
|
|
|
/* FIXME: Should be one dump per type */
|
|
dbgarg (cmd, "type=%s\n", prt_names(f->type,
|
|
v4l2_type_names));
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
|
if (vfd->vidioc_s_fmt_cap)
|
|
ret=vfd->vidioc_s_fmt_cap(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (vfd->vidioc_s_fmt_overlay)
|
|
ret=vfd->vidioc_s_fmt_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (vfd->vidioc_s_fmt_vbi)
|
|
ret=vfd->vidioc_s_fmt_vbi(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
|
if (vfd->vidioc_s_fmt_vbi_output)
|
|
ret=vfd->vidioc_s_fmt_vbi_output(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
if (vfd->vidioc_s_fmt_vbi_capture)
|
|
ret=vfd->vidioc_s_fmt_vbi_capture(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (vfd->vidioc_s_fmt_video_output)
|
|
ret=vfd->vidioc_s_fmt_video_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
|
if (vfd->vidioc_s_fmt_output_overlay)
|
|
ret=vfd->vidioc_s_fmt_output_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
|
if (vfd->vidioc_s_fmt_vbi_output)
|
|
ret=vfd->vidioc_s_fmt_vbi_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
|
if (vfd->vidioc_s_fmt_type_private)
|
|
ret=vfd->vidioc_s_fmt_type_private(file,
|
|
fh, f);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_TRY_FMT:
|
|
{
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
|
|
|
/* FIXME: Should be one dump per type */
|
|
dbgarg (cmd, "type=%s\n", prt_names(f->type,
|
|
v4l2_type_names));
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_cap)
|
|
ret=vfd->vidioc_try_fmt_cap(file, fh, f);
|
|
if (!ret)
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (vfd->vidioc_try_fmt_overlay)
|
|
ret=vfd->vidioc_try_fmt_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_vbi)
|
|
ret=vfd->vidioc_try_fmt_vbi(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
|
ret=vfd->vidioc_try_fmt_vbi_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
|
if (vfd->vidioc_try_fmt_vbi_capture)
|
|
ret=vfd->vidioc_try_fmt_vbi_capture(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_video_output)
|
|
ret=vfd->vidioc_try_fmt_video_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
|
if (vfd->vidioc_try_fmt_output_overlay)
|
|
ret=vfd->vidioc_try_fmt_output_overlay(file, fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
|
ret=vfd->vidioc_try_fmt_vbi_output(file,
|
|
fh, f);
|
|
break;
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
|
if (vfd->vidioc_try_fmt_type_private)
|
|
ret=vfd->vidioc_try_fmt_type_private(file,
|
|
fh, f);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
/* FIXME: Those buf reqs could be handled here,
|
|
with some changes on videobuf to allow its header to be included at
|
|
videodev2.h or being merged at videodev2.
|
|
*/
|
|
case VIDIOC_REQBUFS:
|
|
{
|
|
struct v4l2_requestbuffers *p=arg;
|
|
|
|
if (!vfd->vidioc_reqbufs)
|
|
break;
|
|
ret = check_fmt (vfd, p->type);
|
|
if (ret)
|
|
break;
|
|
|
|
ret=vfd->vidioc_reqbufs(file, fh, p);
|
|
dbgarg (cmd, "count=%d, type=%s, memory=%s\n",
|
|
p->count,
|
|
prt_names(p->type, v4l2_type_names),
|
|
prt_names(p->memory, v4l2_memory_names));
|
|
break;
|
|
}
|
|
case VIDIOC_QUERYBUF:
|
|
{
|
|
struct v4l2_buffer *p=arg;
|
|
|
|
if (!vfd->vidioc_querybuf)
|
|
break;
|
|
ret = check_fmt (vfd, p->type);
|
|
if (ret)
|
|
break;
|
|
|
|
ret=vfd->vidioc_querybuf(file, fh, p);
|
|
if (!ret)
|
|
dbgbuf(cmd,vfd,p);
|
|
break;
|
|
}
|
|
case VIDIOC_QBUF:
|
|
{
|
|
struct v4l2_buffer *p=arg;
|
|
|
|
if (!vfd->vidioc_qbuf)
|
|
break;
|
|
ret = check_fmt (vfd, p->type);
|
|
if (ret)
|
|
break;
|
|
|
|
ret=vfd->vidioc_qbuf(file, fh, p);
|
|
if (!ret)
|
|
dbgbuf(cmd,vfd,p);
|
|
break;
|
|
}
|
|
case VIDIOC_DQBUF:
|
|
{
|
|
struct v4l2_buffer *p=arg;
|
|
if (!vfd->vidioc_dqbuf)
|
|
break;
|
|
ret = check_fmt (vfd, p->type);
|
|
if (ret)
|
|
break;
|
|
|
|
ret=vfd->vidioc_dqbuf(file, fh, p);
|
|
if (!ret)
|
|
dbgbuf(cmd,vfd,p);
|
|
break;
|
|
}
|
|
case VIDIOC_OVERLAY:
|
|
{
|
|
int *i = arg;
|
|
|
|
if (!vfd->vidioc_overlay)
|
|
break;
|
|
dbgarg (cmd, "value=%d\n",*i);
|
|
ret=vfd->vidioc_overlay(file, fh, *i);
|
|
break;
|
|
}
|
|
case VIDIOC_G_FBUF:
|
|
{
|
|
struct v4l2_framebuffer *p=arg;
|
|
if (!vfd->vidioc_g_fbuf)
|
|
break;
|
|
ret=vfd->vidioc_g_fbuf(file, fh, arg);
|
|
if (!ret) {
|
|
dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
|
|
p->capability,p->flags,
|
|
(unsigned long)p->base);
|
|
v4l_print_pix_fmt (vfd, &p->fmt);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_S_FBUF:
|
|
{
|
|
struct v4l2_framebuffer *p=arg;
|
|
if (!vfd->vidioc_s_fbuf)
|
|
break;
|
|
|
|
dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
|
|
p->capability,p->flags,(unsigned long)p->base);
|
|
v4l_print_pix_fmt (vfd, &p->fmt);
|
|
ret=vfd->vidioc_s_fbuf(file, fh, arg);
|
|
|
|
break;
|
|
}
|
|
case VIDIOC_STREAMON:
|
|
{
|
|
enum v4l2_buf_type i = *(int *)arg;
|
|
if (!vfd->vidioc_streamon)
|
|
break;
|
|
dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
|
|
ret=vfd->vidioc_streamon(file, fh,i);
|
|
break;
|
|
}
|
|
case VIDIOC_STREAMOFF:
|
|
{
|
|
enum v4l2_buf_type i = *(int *)arg;
|
|
|
|
if (!vfd->vidioc_streamoff)
|
|
break;
|
|
dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
|
|
ret=vfd->vidioc_streamoff(file, fh, i);
|
|
break;
|
|
}
|
|
/* ---------- tv norms ---------- */
|
|
case VIDIOC_ENUMSTD:
|
|
{
|
|
struct v4l2_standard *p = arg;
|
|
v4l2_std_id id = vfd->tvnorms,curr_id=0;
|
|
unsigned int index = p->index,i;
|
|
|
|
if (index<0) {
|
|
ret=-EINVAL;
|
|
break;
|
|
}
|
|
|
|
/* Return norm array on a canonical way */
|
|
for (i=0;i<= index && id; i++) {
|
|
if ( (id & V4L2_STD_PAL) == V4L2_STD_PAL) {
|
|
curr_id = V4L2_STD_PAL;
|
|
} else if ( (id & V4L2_STD_PAL_BG) == V4L2_STD_PAL_BG) {
|
|
curr_id = V4L2_STD_PAL_BG;
|
|
} else if ( (id & V4L2_STD_PAL_DK) == V4L2_STD_PAL_DK) {
|
|
curr_id = V4L2_STD_PAL_DK;
|
|
} else if ( (id & V4L2_STD_PAL_B) == V4L2_STD_PAL_B) {
|
|
curr_id = V4L2_STD_PAL_B;
|
|
} else if ( (id & V4L2_STD_PAL_B1) == V4L2_STD_PAL_B1) {
|
|
curr_id = V4L2_STD_PAL_B1;
|
|
} else if ( (id & V4L2_STD_PAL_G) == V4L2_STD_PAL_G) {
|
|
curr_id = V4L2_STD_PAL_G;
|
|
} else if ( (id & V4L2_STD_PAL_H) == V4L2_STD_PAL_H) {
|
|
curr_id = V4L2_STD_PAL_H;
|
|
} else if ( (id & V4L2_STD_PAL_I) == V4L2_STD_PAL_I) {
|
|
curr_id = V4L2_STD_PAL_I;
|
|
} else if ( (id & V4L2_STD_PAL_D) == V4L2_STD_PAL_D) {
|
|
curr_id = V4L2_STD_PAL_D;
|
|
} else if ( (id & V4L2_STD_PAL_D1) == V4L2_STD_PAL_D1) {
|
|
curr_id = V4L2_STD_PAL_D1;
|
|
} else if ( (id & V4L2_STD_PAL_K) == V4L2_STD_PAL_K) {
|
|
curr_id = V4L2_STD_PAL_K;
|
|
} else if ( (id & V4L2_STD_PAL_M) == V4L2_STD_PAL_M) {
|
|
curr_id = V4L2_STD_PAL_M;
|
|
} else if ( (id & V4L2_STD_PAL_N) == V4L2_STD_PAL_N) {
|
|
curr_id = V4L2_STD_PAL_N;
|
|
} else if ( (id & V4L2_STD_PAL_Nc) == V4L2_STD_PAL_Nc) {
|
|
curr_id = V4L2_STD_PAL_Nc;
|
|
} else if ( (id & V4L2_STD_PAL_60) == V4L2_STD_PAL_60) {
|
|
curr_id = V4L2_STD_PAL_60;
|
|
} else if ( (id & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
|
|
curr_id = V4L2_STD_NTSC;
|
|
} else if ( (id & V4L2_STD_NTSC_M) == V4L2_STD_NTSC_M) {
|
|
curr_id = V4L2_STD_NTSC_M;
|
|
} else if ( (id & V4L2_STD_NTSC_M_JP) == V4L2_STD_NTSC_M_JP) {
|
|
curr_id = V4L2_STD_NTSC_M_JP;
|
|
} else if ( (id & V4L2_STD_NTSC_443) == V4L2_STD_NTSC_443) {
|
|
curr_id = V4L2_STD_NTSC_443;
|
|
} else if ( (id & V4L2_STD_NTSC_M_KR) == V4L2_STD_NTSC_M_KR) {
|
|
curr_id = V4L2_STD_NTSC_M_KR;
|
|
} else if ( (id & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
|
|
curr_id = V4L2_STD_SECAM;
|
|
} else if ( (id & V4L2_STD_SECAM_DK) == V4L2_STD_SECAM_DK) {
|
|
curr_id = V4L2_STD_SECAM_DK;
|
|
} else if ( (id & V4L2_STD_SECAM_B) == V4L2_STD_SECAM_B) {
|
|
curr_id = V4L2_STD_SECAM_B;
|
|
} else if ( (id & V4L2_STD_SECAM_D) == V4L2_STD_SECAM_D) {
|
|
curr_id = V4L2_STD_SECAM_D;
|
|
} else if ( (id & V4L2_STD_SECAM_G) == V4L2_STD_SECAM_G) {
|
|
curr_id = V4L2_STD_SECAM_G;
|
|
} else if ( (id & V4L2_STD_SECAM_H) == V4L2_STD_SECAM_H) {
|
|
curr_id = V4L2_STD_SECAM_H;
|
|
} else if ( (id & V4L2_STD_SECAM_K) == V4L2_STD_SECAM_K) {
|
|
curr_id = V4L2_STD_SECAM_K;
|
|
} else if ( (id & V4L2_STD_SECAM_K1) == V4L2_STD_SECAM_K1) {
|
|
curr_id = V4L2_STD_SECAM_K1;
|
|
} else if ( (id & V4L2_STD_SECAM_L) == V4L2_STD_SECAM_L) {
|
|
curr_id = V4L2_STD_SECAM_L;
|
|
} else if ( (id & V4L2_STD_SECAM_LC) == V4L2_STD_SECAM_LC) {
|
|
curr_id = V4L2_STD_SECAM_LC;
|
|
} else {
|
|
break;
|
|
}
|
|
id &= ~curr_id;
|
|
}
|
|
if (i<=index)
|
|
return -EINVAL;
|
|
|
|
v4l2_video_std_construct(p, curr_id,v4l2_norm_to_name(curr_id));
|
|
p->index = index;
|
|
|
|
dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, "
|
|
"framelines=%d\n", p->index,
|
|
(unsigned long long)p->id, p->name,
|
|
p->frameperiod.numerator,
|
|
p->frameperiod.denominator,
|
|
p->framelines);
|
|
|
|
ret=0;
|
|
break;
|
|
}
|
|
case VIDIOC_G_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
|
|
*id = vfd->current_norm;
|
|
|
|
dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id);
|
|
|
|
ret=0;
|
|
break;
|
|
}
|
|
case VIDIOC_S_STD:
|
|
{
|
|
v4l2_std_id *id = arg,norm;
|
|
|
|
dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id);
|
|
|
|
norm = (*id) & vfd->tvnorms;
|
|
if ( vfd->tvnorms && !norm) /* Check if std is supported */
|
|
break;
|
|
|
|
/* Calls the specific handler */
|
|
if (vfd->vidioc_s_std)
|
|
ret=vfd->vidioc_s_std(file, fh, &norm);
|
|
else
|
|
ret=-EINVAL;
|
|
|
|
/* Updates standard information */
|
|
if (ret>=0)
|
|
vfd->current_norm=norm;
|
|
|
|
break;
|
|
}
|
|
case VIDIOC_QUERYSTD:
|
|
{
|
|
v4l2_std_id *p=arg;
|
|
|
|
if (!vfd->vidioc_querystd)
|
|
break;
|
|
ret=vfd->vidioc_querystd(file, fh, arg);
|
|
if (!ret)
|
|
dbgarg (cmd, "detected std=%08Lx\n",
|
|
(unsigned long long)*p);
|
|
break;
|
|
}
|
|
/* ------ input switching ---------- */
|
|
/* FIXME: Inputs can be handled inside videodev2 */
|
|
case VIDIOC_ENUMINPUT:
|
|
{
|
|
struct v4l2_input *p=arg;
|
|
int i=p->index;
|
|
|
|
if (!vfd->vidioc_enum_input)
|
|
break;
|
|
memset(p, 0, sizeof(*p));
|
|
p->index=i;
|
|
|
|
ret=vfd->vidioc_enum_input(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
|
"audioset=%d, "
|
|
"tuner=%d, std=%08Lx, status=%d\n",
|
|
p->index,p->name,p->type,p->audioset,
|
|
p->tuner,
|
|
(unsigned long long)p->std,
|
|
p->status);
|
|
break;
|
|
}
|
|
case VIDIOC_G_INPUT:
|
|
{
|
|
unsigned int *i = arg;
|
|
|
|
if (!vfd->vidioc_g_input)
|
|
break;
|
|
ret=vfd->vidioc_g_input(file, fh, i);
|
|
if (!ret)
|
|
dbgarg (cmd, "value=%d\n",*i);
|
|
break;
|
|
}
|
|
case VIDIOC_S_INPUT:
|
|
{
|
|
unsigned int *i = arg;
|
|
|
|
if (!vfd->vidioc_s_input)
|
|
break;
|
|
dbgarg (cmd, "value=%d\n",*i);
|
|
ret=vfd->vidioc_s_input(file, fh, *i);
|
|
break;
|
|
}
|
|
|
|
/* ------ output switching ---------- */
|
|
case VIDIOC_G_OUTPUT:
|
|
{
|
|
unsigned int *i = arg;
|
|
|
|
if (!vfd->vidioc_g_output)
|
|
break;
|
|
ret=vfd->vidioc_g_output(file, fh, i);
|
|
if (!ret)
|
|
dbgarg (cmd, "value=%d\n",*i);
|
|
break;
|
|
}
|
|
case VIDIOC_S_OUTPUT:
|
|
{
|
|
unsigned int *i = arg;
|
|
|
|
if (!vfd->vidioc_s_output)
|
|
break;
|
|
dbgarg (cmd, "value=%d\n",*i);
|
|
ret=vfd->vidioc_s_output(file, fh, *i);
|
|
break;
|
|
}
|
|
|
|
/* --- controls ---------------------------------------------- */
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
struct v4l2_queryctrl *p=arg;
|
|
|
|
if (!vfd->vidioc_queryctrl)
|
|
break;
|
|
ret=vfd->vidioc_queryctrl(file, fh, p);
|
|
|
|
if (!ret)
|
|
dbgarg (cmd, "id=%d, type=%d, name=%s, "
|
|
"min/max=%d/%d,"
|
|
" step=%d, default=%d, flags=0x%08x\n",
|
|
p->id,p->type,p->name,p->minimum,
|
|
p->maximum,p->step,p->default_value,
|
|
p->flags);
|
|
break;
|
|
}
|
|
case VIDIOC_G_CTRL:
|
|
{
|
|
struct v4l2_control *p = arg;
|
|
|
|
if (!vfd->vidioc_g_ctrl)
|
|
break;
|
|
dbgarg(cmd, "Enum for index=%d\n", p->id);
|
|
|
|
ret=vfd->vidioc_g_ctrl(file, fh, p);
|
|
if (!ret)
|
|
dbgarg2 ( "id=%d, value=%d\n", p->id, p->value);
|
|
break;
|
|
}
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
struct v4l2_control *p = arg;
|
|
|
|
if (!vfd->vidioc_s_ctrl)
|
|
break;
|
|
dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value);
|
|
|
|
ret=vfd->vidioc_s_ctrl(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_EXT_CTRLS:
|
|
{
|
|
struct v4l2_ext_controls *p = arg;
|
|
|
|
if (vfd->vidioc_g_ext_ctrls) {
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
|
|
|
ret=vfd->vidioc_g_ext_ctrls(file, fh, p);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_S_EXT_CTRLS:
|
|
{
|
|
struct v4l2_ext_controls *p = arg;
|
|
|
|
if (vfd->vidioc_s_ext_ctrls) {
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
|
|
|
ret=vfd->vidioc_s_ext_ctrls(file, fh, p);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_TRY_EXT_CTRLS:
|
|
{
|
|
struct v4l2_ext_controls *p = arg;
|
|
|
|
if (vfd->vidioc_try_ext_ctrls) {
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
|
|
|
ret=vfd->vidioc_try_ext_ctrls(file, fh, p);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_QUERYMENU:
|
|
{
|
|
struct v4l2_querymenu *p=arg;
|
|
if (!vfd->vidioc_querymenu)
|
|
break;
|
|
ret=vfd->vidioc_querymenu(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "id=%d, index=%d, name=%s\n",
|
|
p->id,p->index,p->name);
|
|
break;
|
|
}
|
|
/* --- audio ---------------------------------------------- */
|
|
case VIDIOC_ENUMAUDIO:
|
|
{
|
|
struct v4l2_audio *p=arg;
|
|
|
|
if (!vfd->vidioc_enumaudio)
|
|
break;
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
|
ret=vfd->vidioc_enumaudio(file, fh, p);
|
|
if (!ret)
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n",p->index,p->name,
|
|
p->capability, p->mode);
|
|
break;
|
|
}
|
|
case VIDIOC_G_AUDIO:
|
|
{
|
|
struct v4l2_audio *p=arg;
|
|
__u32 index=p->index;
|
|
|
|
if (!vfd->vidioc_g_audio)
|
|
break;
|
|
|
|
memset(p,0,sizeof(*p));
|
|
p->index=index;
|
|
dbgarg(cmd, "Get for index=%d\n", p->index);
|
|
ret=vfd->vidioc_g_audio(file, fh, p);
|
|
if (!ret)
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n",p->index,
|
|
p->name,p->capability, p->mode);
|
|
break;
|
|
}
|
|
case VIDIOC_S_AUDIO:
|
|
{
|
|
struct v4l2_audio *p=arg;
|
|
|
|
if (!vfd->vidioc_s_audio)
|
|
break;
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n", p->index, p->name,
|
|
p->capability, p->mode);
|
|
ret=vfd->vidioc_s_audio(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_ENUMAUDOUT:
|
|
{
|
|
struct v4l2_audioout *p=arg;
|
|
|
|
if (!vfd->vidioc_enumaudout)
|
|
break;
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
|
ret=vfd->vidioc_enumaudout(file, fh, p);
|
|
if (!ret)
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n", p->index, p->name,
|
|
p->capability,p->mode);
|
|
break;
|
|
}
|
|
case VIDIOC_G_AUDOUT:
|
|
{
|
|
struct v4l2_audioout *p=arg;
|
|
|
|
if (!vfd->vidioc_g_audout)
|
|
break;
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
|
ret=vfd->vidioc_g_audout(file, fh, p);
|
|
if (!ret)
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n", p->index, p->name,
|
|
p->capability,p->mode);
|
|
break;
|
|
}
|
|
case VIDIOC_S_AUDOUT:
|
|
{
|
|
struct v4l2_audioout *p=arg;
|
|
|
|
if (!vfd->vidioc_s_audout)
|
|
break;
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
|
"mode=%d\n", p->index, p->name,
|
|
p->capability,p->mode);
|
|
|
|
ret=vfd->vidioc_s_audout(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_MODULATOR:
|
|
{
|
|
struct v4l2_modulator *p=arg;
|
|
if (!vfd->vidioc_g_modulator)
|
|
break;
|
|
ret=vfd->vidioc_g_modulator(file, fh, p);
|
|
if (!ret)
|
|
dbgarg(cmd, "index=%d, name=%s, "
|
|
"capability=%d, rangelow=%d,"
|
|
" rangehigh=%d, txsubchans=%d\n",
|
|
p->index, p->name,p->capability,
|
|
p->rangelow, p->rangehigh,
|
|
p->txsubchans);
|
|
break;
|
|
}
|
|
case VIDIOC_S_MODULATOR:
|
|
{
|
|
struct v4l2_modulator *p=arg;
|
|
if (!vfd->vidioc_s_modulator)
|
|
break;
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
|
"rangelow=%d, rangehigh=%d, txsubchans=%d\n",
|
|
p->index, p->name,p->capability,p->rangelow,
|
|
p->rangehigh,p->txsubchans);
|
|
ret=vfd->vidioc_s_modulator(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_CROP:
|
|
{
|
|
struct v4l2_crop *p=arg;
|
|
if (!vfd->vidioc_g_crop)
|
|
break;
|
|
ret=vfd->vidioc_g_crop(file, fh, p);
|
|
if (!ret) {
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
|
dbgrect(vfd, "", &p->c);
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_S_CROP:
|
|
{
|
|
struct v4l2_crop *p=arg;
|
|
if (!vfd->vidioc_s_crop)
|
|
break;
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
|
dbgrect(vfd, "", &p->c);
|
|
ret=vfd->vidioc_s_crop(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_CROPCAP:
|
|
{
|
|
struct v4l2_cropcap *p=arg;
|
|
/*FIXME: Should also show v4l2_fract pixelaspect */
|
|
if (!vfd->vidioc_cropcap)
|
|
break;
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
|
dbgrect(vfd, "bounds ", &p->bounds);
|
|
dbgrect(vfd, "defrect ", &p->defrect);
|
|
ret=vfd->vidioc_cropcap(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_JPEGCOMP:
|
|
{
|
|
struct v4l2_jpegcompression *p=arg;
|
|
if (!vfd->vidioc_g_jpegcomp)
|
|
break;
|
|
ret=vfd->vidioc_g_jpegcomp(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "quality=%d, APPn=%d, "
|
|
"APP_len=%d, COM_len=%d, "
|
|
"jpeg_markers=%d\n",
|
|
p->quality,p->APPn,p->APP_len,
|
|
p->COM_len,p->jpeg_markers);
|
|
break;
|
|
}
|
|
case VIDIOC_S_JPEGCOMP:
|
|
{
|
|
struct v4l2_jpegcompression *p=arg;
|
|
if (!vfd->vidioc_g_jpegcomp)
|
|
break;
|
|
dbgarg (cmd, "quality=%d, APPn=%d, APP_len=%d, "
|
|
"COM_len=%d, jpeg_markers=%d\n",
|
|
p->quality,p->APPn,p->APP_len,
|
|
p->COM_len,p->jpeg_markers);
|
|
ret=vfd->vidioc_s_jpegcomp(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_ENC_INDEX:
|
|
{
|
|
struct v4l2_enc_idx *p=arg;
|
|
|
|
if (!vfd->vidioc_g_enc_index)
|
|
break;
|
|
ret=vfd->vidioc_g_enc_index(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "entries=%d, entries_cap=%d\n",
|
|
p->entries,p->entries_cap);
|
|
break;
|
|
}
|
|
case VIDIOC_ENCODER_CMD:
|
|
{
|
|
struct v4l2_encoder_cmd *p=arg;
|
|
|
|
if (!vfd->vidioc_encoder_cmd)
|
|
break;
|
|
ret=vfd->vidioc_encoder_cmd(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "cmd=%d, flags=%d\n",
|
|
p->cmd,p->flags);
|
|
break;
|
|
}
|
|
case VIDIOC_TRY_ENCODER_CMD:
|
|
{
|
|
struct v4l2_encoder_cmd *p=arg;
|
|
|
|
if (!vfd->vidioc_try_encoder_cmd)
|
|
break;
|
|
ret=vfd->vidioc_try_encoder_cmd(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "cmd=%d, flags=%d\n",
|
|
p->cmd,p->flags);
|
|
break;
|
|
}
|
|
case VIDIOC_G_PARM:
|
|
{
|
|
struct v4l2_streamparm *p=arg;
|
|
__u32 type=p->type;
|
|
|
|
memset(p,0,sizeof(*p));
|
|
p->type=type;
|
|
|
|
if (vfd->vidioc_g_parm) {
|
|
ret=vfd->vidioc_g_parm(file, fh, p);
|
|
} else {
|
|
struct v4l2_standard s;
|
|
|
|
if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
v4l2_video_std_construct(&s, vfd->current_norm,
|
|
v4l2_norm_to_name(vfd->current_norm));
|
|
|
|
p->parm.capture.timeperframe = s.frameperiod;
|
|
ret=0;
|
|
}
|
|
|
|
dbgarg (cmd, "type=%d\n", p->type);
|
|
break;
|
|
}
|
|
case VIDIOC_S_PARM:
|
|
{
|
|
struct v4l2_streamparm *p=arg;
|
|
if (!vfd->vidioc_s_parm)
|
|
break;
|
|
dbgarg (cmd, "type=%d\n", p->type);
|
|
ret=vfd->vidioc_s_parm(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *p=arg;
|
|
__u32 index=p->index;
|
|
|
|
if (!vfd->vidioc_g_tuner)
|
|
break;
|
|
|
|
memset(p,0,sizeof(*p));
|
|
p->index=index;
|
|
|
|
ret=vfd->vidioc_g_tuner(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
|
"capability=%d, rangelow=%d, "
|
|
"rangehigh=%d, signal=%d, afc=%d, "
|
|
"rxsubchans=%d, audmode=%d\n",
|
|
p->index, p->name, p->type,
|
|
p->capability, p->rangelow,
|
|
p->rangehigh, p->rxsubchans,
|
|
p->audmode, p->signal, p->afc);
|
|
break;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *p=arg;
|
|
if (!vfd->vidioc_s_tuner)
|
|
break;
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
|
"capability=%d, rangelow=%d, rangehigh=%d, "
|
|
"signal=%d, afc=%d, rxsubchans=%d, "
|
|
"audmode=%d\n",p->index, p->name, p->type,
|
|
p->capability, p->rangelow,p->rangehigh,
|
|
p->rxsubchans, p->audmode, p->signal,
|
|
p->afc);
|
|
ret=vfd->vidioc_s_tuner(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *p=arg;
|
|
if (!vfd->vidioc_g_frequency)
|
|
break;
|
|
|
|
memset(p,0,sizeof(*p));
|
|
|
|
ret=vfd->vidioc_g_frequency(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
|
|
p->tuner,p->type,p->frequency);
|
|
break;
|
|
}
|
|
case VIDIOC_S_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *p=arg;
|
|
if (!vfd->vidioc_s_frequency)
|
|
break;
|
|
dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
|
|
p->tuner,p->type,p->frequency);
|
|
ret=vfd->vidioc_s_frequency(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_G_SLICED_VBI_CAP:
|
|
{
|
|
struct v4l2_sliced_vbi_cap *p=arg;
|
|
if (!vfd->vidioc_g_sliced_vbi_cap)
|
|
break;
|
|
ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "service_set=%d\n", p->service_set);
|
|
break;
|
|
}
|
|
case VIDIOC_LOG_STATUS:
|
|
{
|
|
if (!vfd->vidioc_log_status)
|
|
break;
|
|
ret=vfd->vidioc_log_status(file, fh);
|
|
break;
|
|
}
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
case VIDIOC_DBG_G_REGISTER:
|
|
{
|
|
struct v4l2_register *p=arg;
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
ret=-EPERM;
|
|
else if (vfd->vidioc_g_register)
|
|
ret=vfd->vidioc_g_register(file, fh, p);
|
|
break;
|
|
}
|
|
case VIDIOC_DBG_S_REGISTER:
|
|
{
|
|
struct v4l2_register *p=arg;
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
ret=-EPERM;
|
|
else if (vfd->vidioc_s_register)
|
|
ret=vfd->vidioc_s_register(file, fh, p);
|
|
break;
|
|
}
|
|
#endif
|
|
case VIDIOC_G_CHIP_IDENT:
|
|
{
|
|
struct v4l2_chip_ident *p=arg;
|
|
if (!vfd->vidioc_g_chip_ident)
|
|
break;
|
|
ret=vfd->vidioc_g_chip_ident(file, fh, p);
|
|
if (!ret)
|
|
dbgarg (cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
|
|
break;
|
|
}
|
|
} /* switch */
|
|
|
|
if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
|
|
if (ret<0) {
|
|
printk ("%s: err:\n", vfd->name);
|
|
v4l_print_ioctl(vfd->name, cmd);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int video_ioctl2 (struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
char sbuf[128];
|
|
void *mbuf = NULL;
|
|
void *parg = NULL;
|
|
int err = -EINVAL;
|
|
int is_ext_ctrl;
|
|
size_t ctrls_size = 0;
|
|
void __user *user_ptr = NULL;
|
|
|
|
#ifdef __OLD_VIDIOC_
|
|
cmd = video_fix_command(cmd);
|
|
#endif
|
|
is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
|
|
cmd == VIDIOC_TRY_EXT_CTRLS);
|
|
|
|
/* Copy arguments into temp kernel buffer */
|
|
switch (_IOC_DIR(cmd)) {
|
|
case _IOC_NONE:
|
|
parg = NULL;
|
|
break;
|
|
case _IOC_READ:
|
|
case _IOC_WRITE:
|
|
case (_IOC_WRITE | _IOC_READ):
|
|
if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
|
|
parg = sbuf;
|
|
} else {
|
|
/* too big to allocate from stack */
|
|
mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
|
|
if (NULL == mbuf)
|
|
return -ENOMEM;
|
|
parg = mbuf;
|
|
}
|
|
|
|
err = -EFAULT;
|
|
if (_IOC_DIR(cmd) & _IOC_WRITE)
|
|
if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
|
|
goto out;
|
|
break;
|
|
}
|
|
|
|
if (is_ext_ctrl) {
|
|
struct v4l2_ext_controls *p = parg;
|
|
|
|
/* In case of an error, tell the caller that it wasn't
|
|
a specific control that caused it. */
|
|
p->error_idx = p->count;
|
|
user_ptr = (void __user *)p->controls;
|
|
if (p->count) {
|
|
ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
|
|
/* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
|
|
mbuf = kmalloc(ctrls_size, GFP_KERNEL);
|
|
err = -ENOMEM;
|
|
if (NULL == mbuf)
|
|
goto out_ext_ctrl;
|
|
err = -EFAULT;
|
|
if (copy_from_user(mbuf, user_ptr, ctrls_size))
|
|
goto out_ext_ctrl;
|
|
p->controls = mbuf;
|
|
}
|
|
}
|
|
|
|
/* Handles IOCTL */
|
|
err = __video_do_ioctl(inode, file, cmd, parg);
|
|
if (err == -ENOIOCTLCMD)
|
|
err = -EINVAL;
|
|
if (is_ext_ctrl) {
|
|
struct v4l2_ext_controls *p = parg;
|
|
|
|
p->controls = (void *)user_ptr;
|
|
if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
|
|
err = -EFAULT;
|
|
goto out_ext_ctrl;
|
|
}
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
out_ext_ctrl:
|
|
/* Copy results into user buffer */
|
|
switch (_IOC_DIR(cmd))
|
|
{
|
|
case _IOC_READ:
|
|
case (_IOC_WRITE | _IOC_READ):
|
|
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
|
|
err = -EFAULT;
|
|
break;
|
|
}
|
|
|
|
out:
|
|
kfree(mbuf);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(video_ioctl2);
|
|
|
|
static const struct file_operations video_fops;
|
|
|
|
/**
|
|
* video_register_device - register video4linux devices
|
|
* @vfd: video device structure we want to register
|
|
* @type: type of device to register
|
|
* @nr: which device number (0 == /dev/video0, 1 == /dev/video1, ...
|
|
* -1 == first free)
|
|
*
|
|
* The registration code assigns minor numbers based on the type
|
|
* requested. -ENFILE is returned in all the device slots for this
|
|
* category are full. If not then the minor field is set and the
|
|
* driver initialize function is called (if non %NULL).
|
|
*
|
|
* Zero is returned on success.
|
|
*
|
|
* Valid types are
|
|
*
|
|
* %VFL_TYPE_GRABBER - A frame grabber
|
|
*
|
|
* %VFL_TYPE_VTX - A teletext device
|
|
*
|
|
* %VFL_TYPE_VBI - Vertical blank data (undecoded)
|
|
*
|
|
* %VFL_TYPE_RADIO - A radio card
|
|
*/
|
|
|
|
int video_register_device(struct video_device *vfd, int type, int nr)
|
|
{
|
|
int i=0;
|
|
int base;
|
|
int end;
|
|
int ret;
|
|
char *name_base;
|
|
|
|
switch(type)
|
|
{
|
|
case VFL_TYPE_GRABBER:
|
|
base=MINOR_VFL_TYPE_GRABBER_MIN;
|
|
end=MINOR_VFL_TYPE_GRABBER_MAX+1;
|
|
name_base = "video";
|
|
break;
|
|
case VFL_TYPE_VTX:
|
|
base=MINOR_VFL_TYPE_VTX_MIN;
|
|
end=MINOR_VFL_TYPE_VTX_MAX+1;
|
|
name_base = "vtx";
|
|
break;
|
|
case VFL_TYPE_VBI:
|
|
base=MINOR_VFL_TYPE_VBI_MIN;
|
|
end=MINOR_VFL_TYPE_VBI_MAX+1;
|
|
name_base = "vbi";
|
|
break;
|
|
case VFL_TYPE_RADIO:
|
|
base=MINOR_VFL_TYPE_RADIO_MIN;
|
|
end=MINOR_VFL_TYPE_RADIO_MAX+1;
|
|
name_base = "radio";
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "%s called with unknown type: %d\n",
|
|
__func__, type);
|
|
return -1;
|
|
}
|
|
|
|
/* pick a minor number */
|
|
mutex_lock(&videodev_lock);
|
|
if (nr >= 0 && nr < end-base) {
|
|
/* use the one the driver asked for */
|
|
i = base+nr;
|
|
if (NULL != video_device[i]) {
|
|
mutex_unlock(&videodev_lock);
|
|
return -ENFILE;
|
|
}
|
|
} else {
|
|
/* use first free */
|
|
for(i=base;i<end;i++)
|
|
if (NULL == video_device[i])
|
|
break;
|
|
if (i == end) {
|
|
mutex_unlock(&videodev_lock);
|
|
return -ENFILE;
|
|
}
|
|
}
|
|
video_device[i]=vfd;
|
|
vfd->minor=i;
|
|
mutex_unlock(&videodev_lock);
|
|
mutex_init(&vfd->lock);
|
|
|
|
/* sysfs class */
|
|
memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev));
|
|
if (vfd->dev)
|
|
vfd->class_dev.parent = vfd->dev;
|
|
vfd->class_dev.class = &video_class;
|
|
vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
|
|
sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base);
|
|
ret = device_register(&vfd->class_dev);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "%s: device_register failed\n",
|
|
__func__);
|
|
goto fail_minor;
|
|
}
|
|
|
|
#if 1
|
|
/* needed until all drivers are fixed */
|
|
if (!vfd->release)
|
|
printk(KERN_WARNING "videodev: \"%s\" has no release callback. "
|
|
"Please fix your driver for proper sysfs support, see "
|
|
"http://lwn.net/Articles/36850/\n", vfd->name);
|
|
#endif
|
|
return 0;
|
|
|
|
fail_minor:
|
|
mutex_lock(&videodev_lock);
|
|
video_device[vfd->minor] = NULL;
|
|
vfd->minor = -1;
|
|
mutex_unlock(&videodev_lock);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(video_register_device);
|
|
|
|
/**
|
|
* video_unregister_device - unregister a video4linux device
|
|
* @vfd: the device to unregister
|
|
*
|
|
* This unregisters the passed device and deassigns the minor
|
|
* number. Future open calls will be met with errors.
|
|
*/
|
|
|
|
void video_unregister_device(struct video_device *vfd)
|
|
{
|
|
mutex_lock(&videodev_lock);
|
|
if(video_device[vfd->minor]!=vfd)
|
|
panic("videodev: bad unregister");
|
|
|
|
video_device[vfd->minor]=NULL;
|
|
device_unregister(&vfd->class_dev);
|
|
mutex_unlock(&videodev_lock);
|
|
}
|
|
EXPORT_SYMBOL(video_unregister_device);
|
|
|
|
/*
|
|
* Video fs operations
|
|
*/
|
|
static const struct file_operations video_fops=
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.llseek = no_llseek,
|
|
.open = video_open,
|
|
};
|
|
|
|
/*
|
|
* Initialise video for linux
|
|
*/
|
|
|
|
static int __init videodev_init(void)
|
|
{
|
|
int ret;
|
|
|
|
printk(KERN_INFO "Linux video capture interface: v2.00\n");
|
|
if (register_chrdev(VIDEO_MAJOR, VIDEO_NAME, &video_fops)) {
|
|
printk(KERN_WARNING "video_dev: unable to get major %d\n", VIDEO_MAJOR);
|
|
return -EIO;
|
|
}
|
|
|
|
ret = class_register(&video_class);
|
|
if (ret < 0) {
|
|
unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
|
|
printk(KERN_WARNING "video_dev: class_register failed\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit videodev_exit(void)
|
|
{
|
|
class_unregister(&video_class);
|
|
unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
|
|
}
|
|
|
|
module_init(videodev_init)
|
|
module_exit(videodev_exit)
|
|
|
|
MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>");
|
|
MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|