2005-04-16 22:20:36 +00:00
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/*
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* Video for Linux Two
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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 file replaces the videodev.c file that comes with the
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* regular kernel distribution.
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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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2007-01-09 14:20:59 +00:00
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* Author: Bill Dirks <bill@thedirks.org>
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2005-04-16 22:20:36 +00:00
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* based on code by Alan Cox, <alan@cymru.net>
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*
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*/
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/*
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* Video capture interface for Linux
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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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* Author: Alan Cox, <alan@redhat.com>
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*
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* Fixes:
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*/
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/*
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* Video4linux 1/2 integration by Justin Schoeman
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* <justin@suntiger.ee.up.ac.za>
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* 2.4 PROCFS support ported from 2.4 kernels by
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2007-10-19 21:21:04 +00:00
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* Iñaki GarcÃa Etxebarria <garetxe@euskalnet.net>
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2005-04-16 22:20:36 +00:00
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* Makefile fix by "W. Michael Petullo" <mike@flyn.org>
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* 2.4 devfs support ported from 2.4 kernels by
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* Dan Merillat <dan@merillat.org>
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* Added Gerd Knorrs v4l1 enhancements (Justin Schoeman)
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*/
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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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2007-02-23 23:55:14 +00:00
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#include <linux/i2c.h>
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2005-04-16 22:20:36 +00:00
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include <asm/pgtable.h>
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#include <asm/io.h>
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#include <asm/div64.h>
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2006-01-09 17:32:31 +00:00
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#include <linux/video_decoder.h>
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2006-06-04 13:06:18 +00:00
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#define __OLD_VIDIOC_ /* To allow fixing old calls*/
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2006-01-09 17:32:31 +00:00
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#include <media/v4l2-common.h>
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2007-04-27 15:31:08 +00:00
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#include <media/v4l2-chip-ident.h>
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2005-04-16 22:20:36 +00:00
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#ifdef CONFIG_KMOD
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#include <linux/kmod.h>
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#endif
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#include <linux/videodev.h>
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MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr");
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MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers");
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MODULE_LICENSE("GPL");
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/*
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*
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* V 4 L 2 D R I V E R H E L P E R A P I
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*
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*/
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/*
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* Video Standard Operations (contributed by Michael Schimek)
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*/
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2006-11-20 16:19:20 +00:00
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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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2007-01-07 11:51:05 +00:00
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u32 myid = id;
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2006-11-20 16:19:20 +00:00
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2007-01-07 11:51:05 +00:00
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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 variants,
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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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2006-11-20 16:19:20 +00:00
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case V4L2_STD_PAL:
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name="PAL"; break;
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case V4L2_STD_PAL_BG:
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name="PAL-BG"; break;
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case V4L2_STD_PAL_DK:
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name="PAL-DK"; break;
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case V4L2_STD_PAL_B:
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name="PAL-B"; break;
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case V4L2_STD_PAL_B1:
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name="PAL-B1"; break;
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case V4L2_STD_PAL_G:
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name="PAL-G"; break;
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case V4L2_STD_PAL_H:
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name="PAL-H"; break;
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case V4L2_STD_PAL_I:
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name="PAL-I"; break;
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case V4L2_STD_PAL_D:
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name="PAL-D"; break;
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case V4L2_STD_PAL_D1:
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name="PAL-D1"; break;
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case V4L2_STD_PAL_K:
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name="PAL-K"; break;
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case V4L2_STD_PAL_M:
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name="PAL-M"; break;
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case V4L2_STD_PAL_N:
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name="PAL-N"; break;
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case V4L2_STD_PAL_Nc:
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name="PAL-Nc"; break;
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case V4L2_STD_PAL_60:
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name="PAL-60"; break;
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case V4L2_STD_NTSC:
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name="NTSC"; break;
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case V4L2_STD_NTSC_M:
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name="NTSC-M"; break;
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case V4L2_STD_NTSC_M_JP:
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name="NTSC-M-JP"; break;
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case V4L2_STD_NTSC_443:
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name="NTSC-443"; break;
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case V4L2_STD_NTSC_M_KR:
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name="NTSC-M-KR"; break;
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case V4L2_STD_SECAM:
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name="SECAM"; break;
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case V4L2_STD_SECAM_DK:
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name="SECAM-DK"; break;
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case V4L2_STD_SECAM_B:
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name="SECAM-B"; break;
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case V4L2_STD_SECAM_D:
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name="SECAM-D"; break;
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case V4L2_STD_SECAM_G:
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name="SECAM-G"; break;
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case V4L2_STD_SECAM_H:
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name="SECAM-H"; break;
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case V4L2_STD_SECAM_K:
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name="SECAM-K"; break;
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case V4L2_STD_SECAM_K1:
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name="SECAM-K1"; break;
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case V4L2_STD_SECAM_L:
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name="SECAM-L"; break;
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case V4L2_STD_SECAM_LC:
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name="SECAM-LC"; break;
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default:
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name="Unknown"; break;
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}
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return name;
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}
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2005-04-16 22:20:36 +00:00
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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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2006-02-27 03:08:52 +00:00
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if (id & V4L2_STD_525_60) {
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2005-04-16 22:20:36 +00:00
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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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/* ----------------------------------------------------------------- */
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/* priority handling */
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#define V4L2_PRIO_VALID(val) (val == V4L2_PRIORITY_BACKGROUND || \
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val == V4L2_PRIORITY_INTERACTIVE || \
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val == V4L2_PRIORITY_RECORD)
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int v4l2_prio_init(struct v4l2_prio_state *global)
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{
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memset(global,0,sizeof(*global));
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return 0;
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}
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int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
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enum v4l2_priority new)
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{
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if (!V4L2_PRIO_VALID(new))
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return -EINVAL;
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if (*local == new)
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return 0;
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atomic_inc(&global->prios[new]);
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if (V4L2_PRIO_VALID(*local))
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atomic_dec(&global->prios[*local]);
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*local = new;
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return 0;
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}
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int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local)
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{
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return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT);
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}
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int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local)
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{
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if (V4L2_PRIO_VALID(*local))
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atomic_dec(&global->prios[*local]);
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return 0;
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}
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enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global)
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{
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if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0)
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return V4L2_PRIORITY_RECORD;
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if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0)
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return V4L2_PRIORITY_INTERACTIVE;
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if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0)
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return V4L2_PRIORITY_BACKGROUND;
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return V4L2_PRIORITY_UNSET;
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}
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int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local)
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{
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if (*local < v4l2_prio_max(global))
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return -EBUSY;
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return 0;
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}
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/* ----------------------------------------------------------------- */
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2006-02-27 03:08:58 +00:00
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/* some arrays for pretty-printing debug messages of enum types */
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2005-04-16 22:20:36 +00:00
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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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2007-04-27 15:31:02 +00:00
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[V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
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[V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
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2005-04-16 22:20:36 +00:00
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};
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char *v4l2_type_names[] = {
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2006-11-16 14:02:28 +00:00
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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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2007-04-27 15:31:02 +00:00
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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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2005-04-16 22:20:36 +00:00
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};
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2006-02-27 03:08:58 +00:00
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#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
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2006-01-09 17:32:31 +00:00
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/* ------------------------------------------------------------------ */
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/* debug help functions */
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2006-08-08 12:10:10 +00:00
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#ifdef CONFIG_VIDEO_V4L1_COMPAT
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2006-01-09 17:32:31 +00:00
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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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2005-04-16 22:20:36 +00:00
|
|
|
};
|
2006-01-09 17:32:31 +00:00
|
|
|
#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static const char *v4l2_ioctls[] = {
|
|
|
|
[_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP",
|
|
|
|
[_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED",
|
|
|
|
[_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT",
|
|
|
|
[_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT",
|
|
|
|
[_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT",
|
|
|
|
[_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS",
|
|
|
|
[_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF",
|
|
|
|
[_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF",
|
|
|
|
[_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF",
|
|
|
|
[_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY",
|
|
|
|
[_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF",
|
|
|
|
[_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
|
|
|
|
[_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON",
|
|
|
|
[_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF",
|
|
|
|
[_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM",
|
|
|
|
[_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM",
|
|
|
|
[_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD",
|
|
|
|
[_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD",
|
|
|
|
[_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD",
|
|
|
|
[_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT",
|
|
|
|
[_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL",
|
|
|
|
[_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL",
|
|
|
|
[_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER",
|
|
|
|
[_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER",
|
|
|
|
[_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO",
|
|
|
|
[_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO",
|
|
|
|
[_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL",
|
|
|
|
[_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU",
|
|
|
|
[_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT",
|
|
|
|
[_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT",
|
|
|
|
[_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT",
|
|
|
|
[_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT",
|
|
|
|
[_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
|
|
|
|
[_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
|
|
|
|
[_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
|
|
|
|
[_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
|
|
|
|
[_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
|
|
|
|
[_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
|
|
|
|
[_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
|
|
|
|
[_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
|
|
|
|
[_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
|
|
|
|
[_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
|
|
|
|
[_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
|
|
|
|
[_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
|
|
|
|
[_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
|
|
|
|
[_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
|
|
|
|
[_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO",
|
|
|
|
[_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
|
|
|
|
[_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
|
|
|
|
[_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
|
|
|
|
[_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
|
2006-06-18 17:11:08 +00:00
|
|
|
[_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS",
|
|
|
|
[_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS",
|
|
|
|
[_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS",
|
2007-02-18 17:05:02 +00:00
|
|
|
[_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS",
|
|
|
|
#if 1
|
|
|
|
[_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES",
|
|
|
|
[_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS",
|
2007-02-18 17:56:22 +00:00
|
|
|
[_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX",
|
|
|
|
[_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD",
|
2007-02-24 00:16:01 +00:00
|
|
|
[_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD",
|
|
|
|
|
|
|
|
[_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER",
|
|
|
|
[_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER",
|
2007-04-27 15:31:08 +00:00
|
|
|
|
|
|
|
[_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT",
|
2007-02-18 17:05:02 +00:00
|
|
|
#endif
|
2006-01-09 17:32:31 +00:00
|
|
|
};
|
|
|
|
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
|
|
|
|
|
|
|
|
static const char *v4l2_int_ioctls[] = {
|
2006-08-08 12:10:10 +00:00
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
2006-01-09 17:32:31 +00:00
|
|
|
[_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES",
|
|
|
|
[_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS",
|
|
|
|
[_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM",
|
|
|
|
[_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT",
|
|
|
|
[_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT",
|
|
|
|
[_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT",
|
|
|
|
[_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE",
|
|
|
|
[_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO",
|
|
|
|
[_IOC_NR(DECODER_INIT)] = "DECODER_INIT",
|
|
|
|
[_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS",
|
|
|
|
[_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP",
|
|
|
|
#endif
|
|
|
|
[_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO",
|
|
|
|
|
|
|
|
[_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR",
|
|
|
|
[_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY",
|
2007-10-18 22:56:47 +00:00
|
|
|
[_IOC_NR(TUNER_SET_CONFIG)] = "TUNER_SET_CONFIG",
|
2006-01-09 17:32:31 +00:00
|
|
|
|
2006-04-01 18:27:52 +00:00
|
|
|
[_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE",
|
2006-01-09 17:32:31 +00:00
|
|
|
[_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET",
|
|
|
|
[_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",
|
2006-04-01 18:27:52 +00:00
|
|
|
[_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",
|
2006-04-02 15:50:42 +00:00
|
|
|
[_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING",
|
2007-04-27 15:31:04 +00:00
|
|
|
[_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",
|
2006-01-09 17:32:31 +00:00
|
|
|
};
|
|
|
|
#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
|
|
|
|
|
2006-02-27 03:08:55 +00:00
|
|
|
|
2006-01-09 17:32:31 +00:00
|
|
|
/* 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;
|
2006-08-08 12:10:10 +00:00
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
2006-01-09 17:32:31 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-02-27 03:08:49 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/* ----------------------------------------------------------------- */
|
|
|
|
|
2006-06-18 17:11:08 +00:00
|
|
|
/* Helper functions for control handling */
|
|
|
|
|
|
|
|
/* Check for correctness of the ctrl's value based on the data from
|
|
|
|
struct v4l2_queryctrl and the available menu items. Note that
|
|
|
|
menu_items may be NULL, in that case it is ignored. */
|
|
|
|
int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
|
|
|
|
const char **menu_items)
|
|
|
|
{
|
|
|
|
if (qctrl->flags & V4L2_CTRL_FLAG_DISABLED)
|
|
|
|
return -EINVAL;
|
|
|
|
if (qctrl->flags & V4L2_CTRL_FLAG_GRABBED)
|
|
|
|
return -EBUSY;
|
|
|
|
if (qctrl->type == V4L2_CTRL_TYPE_BUTTON ||
|
|
|
|
qctrl->type == V4L2_CTRL_TYPE_INTEGER64 ||
|
|
|
|
qctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS)
|
|
|
|
return 0;
|
|
|
|
if (ctrl->value < qctrl->minimum || ctrl->value > qctrl->maximum)
|
|
|
|
return -ERANGE;
|
|
|
|
if (qctrl->type == V4L2_CTRL_TYPE_MENU && menu_items != NULL) {
|
|
|
|
if (menu_items[ctrl->value] == NULL ||
|
|
|
|
menu_items[ctrl->value][0] == '\0')
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Returns NULL or a character pointer array containing the menu for
|
|
|
|
the given control ID. The pointer array ends with a NULL pointer.
|
|
|
|
An empty string signifies a menu entry that is invalid. This allows
|
|
|
|
drivers to disable certain options if it is not supported. */
|
|
|
|
const char **v4l2_ctrl_get_menu(u32 id)
|
|
|
|
{
|
|
|
|
static const char *mpeg_audio_sampling_freq[] = {
|
|
|
|
"44.1 kHz",
|
|
|
|
"48 kHz",
|
|
|
|
"32 kHz",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_encoding[] = {
|
|
|
|
"Layer I",
|
|
|
|
"Layer II",
|
|
|
|
"Layer III",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_l1_bitrate[] = {
|
|
|
|
"32 kbps",
|
|
|
|
"64 kbps",
|
|
|
|
"96 kbps",
|
|
|
|
"128 kbps",
|
|
|
|
"160 kbps",
|
|
|
|
"192 kbps",
|
|
|
|
"224 kbps",
|
|
|
|
"256 kbps",
|
|
|
|
"288 kbps",
|
|
|
|
"320 kbps",
|
|
|
|
"352 kbps",
|
|
|
|
"384 kbps",
|
|
|
|
"416 kbps",
|
|
|
|
"448 kbps",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_l2_bitrate[] = {
|
|
|
|
"32 kbps",
|
|
|
|
"48 kbps",
|
|
|
|
"56 kbps",
|
|
|
|
"64 kbps",
|
|
|
|
"80 kbps",
|
|
|
|
"96 kbps",
|
|
|
|
"112 kbps",
|
|
|
|
"128 kbps",
|
|
|
|
"160 kbps",
|
|
|
|
"192 kbps",
|
|
|
|
"224 kbps",
|
|
|
|
"256 kbps",
|
|
|
|
"320 kbps",
|
|
|
|
"384 kbps",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_l3_bitrate[] = {
|
|
|
|
"32 kbps",
|
|
|
|
"40 kbps",
|
|
|
|
"48 kbps",
|
|
|
|
"56 kbps",
|
|
|
|
"64 kbps",
|
|
|
|
"80 kbps",
|
|
|
|
"96 kbps",
|
|
|
|
"112 kbps",
|
|
|
|
"128 kbps",
|
|
|
|
"160 kbps",
|
|
|
|
"192 kbps",
|
|
|
|
"224 kbps",
|
|
|
|
"256 kbps",
|
|
|
|
"320 kbps",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_mode[] = {
|
|
|
|
"Stereo",
|
|
|
|
"Joint Stereo",
|
|
|
|
"Dual",
|
|
|
|
"Mono",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_mode_extension[] = {
|
|
|
|
"Bound 4",
|
|
|
|
"Bound 8",
|
|
|
|
"Bound 12",
|
|
|
|
"Bound 16",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_emphasis[] = {
|
|
|
|
"No Emphasis",
|
|
|
|
"50/15 us",
|
|
|
|
"CCITT J17",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_audio_crc[] = {
|
|
|
|
"No CRC",
|
|
|
|
"16-bit CRC",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_video_encoding[] = {
|
|
|
|
"MPEG-1",
|
|
|
|
"MPEG-2",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_video_aspect[] = {
|
|
|
|
"1x1",
|
|
|
|
"4x3",
|
|
|
|
"16x9",
|
|
|
|
"2.21x1",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_video_bitrate_mode[] = {
|
|
|
|
"Variable Bitrate",
|
|
|
|
"Constant Bitrate",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
static const char *mpeg_stream_type[] = {
|
|
|
|
"MPEG-2 Program Stream",
|
|
|
|
"MPEG-2 Transport Stream",
|
|
|
|
"MPEG-1 System Stream",
|
|
|
|
"MPEG-2 DVD-compatible Stream",
|
|
|
|
"MPEG-1 VCD-compatible Stream",
|
|
|
|
"MPEG-2 SVCD-compatible Stream",
|
|
|
|
NULL
|
|
|
|
};
|
2006-06-24 17:36:02 +00:00
|
|
|
static const char *mpeg_stream_vbi_fmt[] = {
|
|
|
|
"No VBI",
|
2006-06-25 14:18:54 +00:00
|
|
|
"Private packet, IVTV format",
|
2006-06-24 17:36:02 +00:00
|
|
|
NULL
|
|
|
|
};
|
2006-06-18 17:11:08 +00:00
|
|
|
|
|
|
|
switch (id) {
|
|
|
|
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
|
|
|
|
return mpeg_audio_sampling_freq;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_ENCODING:
|
|
|
|
return mpeg_audio_encoding;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
|
|
|
|
return mpeg_audio_l1_bitrate;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
|
|
|
|
return mpeg_audio_l2_bitrate;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
|
|
|
|
return mpeg_audio_l3_bitrate;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE:
|
|
|
|
return mpeg_audio_mode;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
|
|
|
|
return mpeg_audio_mode_extension;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
|
|
|
|
return mpeg_audio_emphasis;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_CRC:
|
|
|
|
return mpeg_audio_crc;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING:
|
|
|
|
return mpeg_video_encoding;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
|
|
return mpeg_video_aspect;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
|
|
|
|
return mpeg_video_bitrate_mode;
|
|
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
|
|
return mpeg_stream_type;
|
2006-06-24 17:36:02 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_VBI_FMT:
|
|
|
|
return mpeg_stream_vbi_fmt;
|
2006-06-18 17:11:08 +00:00
|
|
|
default:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Fill in a struct v4l2_queryctrl */
|
|
|
|
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def)
|
|
|
|
{
|
|
|
|
const char *name;
|
|
|
|
|
|
|
|
qctrl->flags = 0;
|
|
|
|
switch (qctrl->id) {
|
|
|
|
/* USER controls */
|
|
|
|
case V4L2_CID_USER_CLASS: name = "User Controls"; break;
|
|
|
|
case V4L2_CID_AUDIO_VOLUME: name = "Volume"; break;
|
|
|
|
case V4L2_CID_AUDIO_MUTE: name = "Mute"; break;
|
|
|
|
case V4L2_CID_AUDIO_BALANCE: name = "Balance"; break;
|
|
|
|
case V4L2_CID_AUDIO_BASS: name = "Bass"; break;
|
|
|
|
case V4L2_CID_AUDIO_TREBLE: name = "Treble"; break;
|
|
|
|
case V4L2_CID_AUDIO_LOUDNESS: name = "Loudness"; break;
|
|
|
|
case V4L2_CID_BRIGHTNESS: name = "Brightness"; break;
|
|
|
|
case V4L2_CID_CONTRAST: name = "Contrast"; break;
|
|
|
|
case V4L2_CID_SATURATION: name = "Saturation"; break;
|
|
|
|
case V4L2_CID_HUE: name = "Hue"; break;
|
|
|
|
|
|
|
|
/* MPEG controls */
|
|
|
|
case V4L2_CID_MPEG_CLASS: name = "MPEG Encoder Controls"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: name = "Audio Sampling Frequency"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_ENCODING: name = "Audio Encoding Layer"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L1_BITRATE: name = "Audio Layer I Bitrate"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L2_BITRATE: name = "Audio Layer II Bitrate"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L3_BITRATE: name = "Audio Layer III Bitrate"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE: name = "Audio Stereo Mode"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: name = "Audio Stereo Mode Extension"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_EMPHASIS: name = "Audio Emphasis"; break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_CRC: name = "Audio CRC"; break;
|
2007-04-27 15:31:00 +00:00
|
|
|
case V4L2_CID_MPEG_AUDIO_MUTE: name = "Audio Mute"; break;
|
2006-06-18 17:11:08 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING: name = "Video Encoding"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT: name = "Video Aspect"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES: name = "Video B Frames"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE: name = "Video GOP Size"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: name = "Video GOP Closure"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_PULLDOWN: name = "Video Pulldown"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: name = "Video Bitrate Mode"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE: name = "Video Bitrate"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: name = "Video Peak Bitrate"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: name = "Video Temporal Decimation"; break;
|
2007-04-27 15:31:00 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_MUTE: name = "Video Mute"; break;
|
|
|
|
case V4L2_CID_MPEG_VIDEO_MUTE_YUV: name = "Video Mute YUV"; break;
|
2006-06-18 17:11:08 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_TYPE: name = "Stream Type"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_PMT: name = "Stream PMT Program ID"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_AUDIO: name = "Stream Audio Program ID"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_VIDEO: name = "Stream Video Program ID"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break;
|
|
|
|
case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break;
|
2006-06-24 17:36:02 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break;
|
2006-06-18 17:11:08 +00:00
|
|
|
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
switch (qctrl->id) {
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
case V4L2_CID_AUDIO_LOUDNESS:
|
2007-04-27 15:31:00 +00:00
|
|
|
case V4L2_CID_MPEG_AUDIO_MUTE:
|
2007-08-21 21:32:42 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_MUTE:
|
2006-06-18 17:11:08 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_PULLDOWN:
|
|
|
|
qctrl->type = V4L2_CTRL_TYPE_BOOLEAN;
|
|
|
|
min = 0;
|
|
|
|
max = step = 1;
|
|
|
|
break;
|
|
|
|
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_ENCODING:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_CRC:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
|
|
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
2006-06-24 17:36:02 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_VBI_FMT:
|
2006-06-18 17:11:08 +00:00
|
|
|
qctrl->type = V4L2_CTRL_TYPE_MENU;
|
|
|
|
step = 1;
|
|
|
|
break;
|
|
|
|
case V4L2_CID_USER_CLASS:
|
|
|
|
case V4L2_CID_MPEG_CLASS:
|
|
|
|
qctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS;
|
|
|
|
qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
|
|
|
|
min = max = step = def = 0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
qctrl->type = V4L2_CTRL_TYPE_INTEGER;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
switch (qctrl->id) {
|
|
|
|
case V4L2_CID_MPEG_AUDIO_ENCODING:
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
|
|
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
|
|
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
|
|
qctrl->flags |= V4L2_CTRL_FLAG_UPDATE;
|
|
|
|
break;
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
|
|
case V4L2_CID_AUDIO_BASS:
|
|
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
|
|
case V4L2_CID_BRIGHTNESS:
|
|
|
|
case V4L2_CID_CONTRAST:
|
|
|
|
case V4L2_CID_SATURATION:
|
|
|
|
case V4L2_CID_HUE:
|
|
|
|
qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
qctrl->minimum = min;
|
|
|
|
qctrl->maximum = max;
|
|
|
|
qctrl->step = step;
|
|
|
|
qctrl->default_value = def;
|
|
|
|
qctrl->reserved[0] = qctrl->reserved[1] = 0;
|
|
|
|
snprintf(qctrl->name, sizeof(qctrl->name), name);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Fill in a struct v4l2_queryctrl with standard values based on
|
|
|
|
the control ID. */
|
|
|
|
int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
|
|
|
|
{
|
|
|
|
switch (qctrl->id) {
|
|
|
|
/* USER controls */
|
|
|
|
case V4L2_CID_USER_CLASS:
|
|
|
|
case V4L2_CID_MPEG_CLASS:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 58880);
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
case V4L2_CID_AUDIO_LOUDNESS:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
|
|
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
|
|
case V4L2_CID_AUDIO_BASS:
|
|
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 32768);
|
|
|
|
case V4L2_CID_BRIGHTNESS:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
|
|
|
|
case V4L2_CID_CONTRAST:
|
|
|
|
case V4L2_CID_SATURATION:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 127, 1, 64);
|
|
|
|
case V4L2_CID_HUE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, -128, 127, 1, 0);
|
|
|
|
|
|
|
|
/* MPEG controls */
|
|
|
|
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100,
|
|
|
|
V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1,
|
|
|
|
V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_ENCODING:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_ENCODING_LAYER_1,
|
|
|
|
V4L2_MPEG_AUDIO_ENCODING_LAYER_3, 1,
|
|
|
|
V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_L1_BITRATE_32K,
|
|
|
|
V4L2_MPEG_AUDIO_L1_BITRATE_448K, 1,
|
|
|
|
V4L2_MPEG_AUDIO_L1_BITRATE_256K);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_L2_BITRATE_32K,
|
|
|
|
V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1,
|
|
|
|
V4L2_MPEG_AUDIO_L2_BITRATE_224K);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_L3_BITRATE_32K,
|
|
|
|
V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1,
|
|
|
|
V4L2_MPEG_AUDIO_L3_BITRATE_192K);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_STEREO,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_MONO, 1,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_STEREO);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1,
|
|
|
|
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_EMPHASIS_NONE,
|
|
|
|
V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1,
|
|
|
|
V4L2_MPEG_AUDIO_EMPHASIS_NONE);
|
|
|
|
case V4L2_CID_MPEG_AUDIO_CRC:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_AUDIO_CRC_NONE,
|
|
|
|
V4L2_MPEG_AUDIO_CRC_CRC16, 1,
|
|
|
|
V4L2_MPEG_AUDIO_CRC_NONE);
|
2007-04-27 15:31:00 +00:00
|
|
|
case V4L2_CID_MPEG_AUDIO_MUTE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
|
2006-06-18 17:11:08 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
|
|
|
|
V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1,
|
|
|
|
V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_VIDEO_ASPECT_1x1,
|
|
|
|
V4L2_MPEG_VIDEO_ASPECT_221x100, 1,
|
|
|
|
V4L2_MPEG_VIDEO_ASPECT_4x3);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 1, 34, 1, 12);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_PULLDOWN:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
|
|
|
|
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
|
|
|
|
V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
|
2007-04-27 15:31:00 +00:00
|
|
|
case V4L2_CID_MPEG_VIDEO_MUTE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
|
|
|
|
case V4L2_CID_MPEG_VIDEO_MUTE_YUV: /* Init YUV (really YCbCr) to black */
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 0xffffff, 1, 0x008080);
|
2006-06-18 17:11:08 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
|
|
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1,
|
|
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_PMT:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_AUDIO:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_VIDEO:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PID_PCR:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
|
|
|
|
case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
|
2006-06-24 17:36:02 +00:00
|
|
|
case V4L2_CID_MPEG_STREAM_VBI_FMT:
|
|
|
|
return v4l2_ctrl_query_fill(qctrl,
|
|
|
|
V4L2_MPEG_STREAM_VBI_FMT_NONE,
|
|
|
|
V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
|
|
|
|
V4L2_MPEG_STREAM_VBI_FMT_NONE);
|
2006-06-18 17:11:08 +00:00
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and
|
|
|
|
the menu. The qctrl pointer may be NULL, in which case it is ignored. */
|
|
|
|
int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl,
|
|
|
|
const char **menu_items)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (menu_items == NULL ||
|
|
|
|
(qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum)))
|
|
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < qmenu->index && menu_items[i]; i++) ;
|
|
|
|
if (menu_items[i] == NULL || menu_items[i][0] == '\0')
|
|
|
|
return -EINVAL;
|
|
|
|
snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]);
|
|
|
|
qmenu->reserved = 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ctrl_classes points to an array of u32 pointers, the last element is
|
|
|
|
a NULL pointer. Each u32 array is a 0-terminated array of control IDs.
|
|
|
|
Each array must be sorted low to high and belong to the same control
|
|
|
|
class. The array of u32 pointer must also be sorted, from low class IDs
|
|
|
|
to high class IDs.
|
|
|
|
|
|
|
|
This function returns the first ID that follows after the given ID.
|
|
|
|
When no more controls are available 0 is returned. */
|
|
|
|
u32 v4l2_ctrl_next(const u32 * const * ctrl_classes, u32 id)
|
|
|
|
{
|
2007-07-19 07:53:36 +00:00
|
|
|
u32 ctrl_class = V4L2_CTRL_ID2CLASS(id);
|
2006-06-18 17:11:08 +00:00
|
|
|
const u32 *pctrl;
|
|
|
|
|
|
|
|
if (ctrl_classes == NULL)
|
|
|
|
return 0;
|
2007-07-19 07:53:36 +00:00
|
|
|
|
|
|
|
/* if no query is desired, then check if the ID is part of ctrl_classes */
|
|
|
|
if ((id & V4L2_CTRL_FLAG_NEXT_CTRL) == 0) {
|
|
|
|
/* find class */
|
|
|
|
while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) != ctrl_class)
|
|
|
|
ctrl_classes++;
|
|
|
|
if (*ctrl_classes == NULL)
|
|
|
|
return 0;
|
|
|
|
pctrl = *ctrl_classes;
|
|
|
|
/* find control ID */
|
|
|
|
while (*pctrl && *pctrl != id) pctrl++;
|
|
|
|
return *pctrl ? id : 0;
|
|
|
|
}
|
2006-06-18 17:11:08 +00:00
|
|
|
id &= V4L2_CTRL_ID_MASK;
|
|
|
|
id++; /* select next control */
|
|
|
|
/* find first class that matches (or is greater than) the class of
|
|
|
|
the ID */
|
|
|
|
while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) < ctrl_class)
|
|
|
|
ctrl_classes++;
|
|
|
|
/* no more classes */
|
|
|
|
if (*ctrl_classes == NULL)
|
|
|
|
return 0;
|
|
|
|
pctrl = *ctrl_classes;
|
|
|
|
/* find first ctrl within the class that is >= ID */
|
|
|
|
while (*pctrl && *pctrl < id) pctrl++;
|
|
|
|
if (*pctrl)
|
|
|
|
return *pctrl;
|
|
|
|
/* we are at the end of the controls of the current class. */
|
|
|
|
/* continue with next class if available */
|
|
|
|
ctrl_classes++;
|
|
|
|
if (*ctrl_classes == NULL)
|
|
|
|
return 0;
|
|
|
|
return **ctrl_classes;
|
|
|
|
}
|
|
|
|
|
2007-02-23 23:55:14 +00:00
|
|
|
int v4l2_chip_match_i2c_client(struct i2c_client *c, u32 match_type, u32 match_chip)
|
|
|
|
{
|
|
|
|
switch (match_type) {
|
|
|
|
case V4L2_CHIP_MATCH_I2C_DRIVER:
|
|
|
|
return (c != NULL && c->driver != NULL && c->driver->id == match_chip);
|
|
|
|
case V4L2_CHIP_MATCH_I2C_ADDR:
|
|
|
|
return (c != NULL && c->addr == match_chip);
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-27 15:31:08 +00:00
|
|
|
int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_chip_ident *chip,
|
|
|
|
u32 ident, u32 revision)
|
|
|
|
{
|
|
|
|
if (!v4l2_chip_match_i2c_client(c, chip->match_type, chip->match_chip))
|
|
|
|
return 0;
|
|
|
|
if (chip->ident == V4L2_IDENT_NONE) {
|
|
|
|
chip->ident = ident;
|
|
|
|
chip->revision = revision;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
chip->ident = V4L2_IDENT_AMBIGUOUS;
|
|
|
|
chip->revision = 0;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-02-23 23:55:14 +00:00
|
|
|
int v4l2_chip_match_host(u32 match_type, u32 match_chip)
|
|
|
|
{
|
|
|
|
switch (match_type) {
|
|
|
|
case V4L2_CHIP_MATCH_HOST:
|
|
|
|
return match_chip == 0;
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-06-18 17:11:08 +00:00
|
|
|
/* ----------------------------------------------------------------- */
|
|
|
|
|
2007-09-12 11:32:50 +00:00
|
|
|
/* Helper function for I2C legacy drivers */
|
|
|
|
|
|
|
|
int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver,
|
|
|
|
const char *name, int (*probe)(struct i2c_client *))
|
|
|
|
{
|
|
|
|
struct i2c_client *client;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
|
|
|
if (client == 0)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
client->addr = address;
|
|
|
|
client->adapter = adapter;
|
|
|
|
client->driver = driver;
|
|
|
|
snprintf(client->name, sizeof(client->name) - 1, name);
|
|
|
|
|
|
|
|
err = probe(client);
|
|
|
|
if (err == 0) {
|
|
|
|
i2c_attach_client(client);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
kfree(client);
|
|
|
|
}
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ----------------------------------------------------------------- */
|
|
|
|
|
2006-11-20 16:19:20 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_norm_to_name);
|
2005-04-16 22:20:36 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_video_std_construct);
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_init);
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_change);
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_open);
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_close);
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_max);
|
|
|
|
EXPORT_SYMBOL(v4l2_prio_check);
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(v4l2_field_names);
|
|
|
|
EXPORT_SYMBOL(v4l2_type_names);
|
2006-01-09 17:32:31 +00:00
|
|
|
EXPORT_SYMBOL(v4l_printk_ioctl);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-06-18 17:11:08 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_next);
|
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_check);
|
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_get_menu);
|
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_query_menu);
|
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_query_fill);
|
|
|
|
EXPORT_SYMBOL(v4l2_ctrl_query_fill_std);
|
|
|
|
|
2007-02-23 23:55:14 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_chip_match_i2c_client);
|
2007-04-27 15:31:08 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_chip_ident_i2c_client);
|
2007-02-23 23:55:14 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_chip_match_host);
|
|
|
|
|
2007-09-12 11:32:50 +00:00
|
|
|
EXPORT_SYMBOL(v4l2_i2c_attach);
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*
|
|
|
|
* Local variables:
|
|
|
|
* c-basic-offset: 8
|
|
|
|
* End:
|
|
|
|
*/
|