2005-11-09 05:37:07 +00:00
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/*
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2005-11-09 05:38:25 +00:00
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em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
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2005-11-09 05:37:07 +00:00
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2005-11-09 05:38:25 +00:00
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Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
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Markus Rechberger <mrechberger@gmail.com>
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2006-04-03 10:53:40 +00:00
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Mauro Carvalho Chehab <mchehab@infradead.org>
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2005-11-09 05:38:25 +00:00
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Sascha Sommer <saschasommer@freenet.de>
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2005-11-09 05:37:07 +00:00
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2006-01-23 19:10:54 +00:00
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Some parts based on SN9C10x PC Camera Controllers GPL driver made
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by Luca Risolia <luca.risolia@studio.unibo.it>
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2005-11-09 05:37:07 +00:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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2006-01-23 19:11:08 +00:00
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#include <linux/bitmap.h>
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2005-11-09 05:37:07 +00:00
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#include <linux/usb.h>
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#include <linux/i2c.h>
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2005-11-09 05:38:37 +00:00
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#include <linux/version.h>
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2007-11-01 04:16:09 +00:00
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#include <linux/mm.h>
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2006-01-15 09:52:23 +00:00
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#include <linux/mutex.h>
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2005-11-09 05:37:07 +00:00
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2005-11-09 05:38:25 +00:00
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#include "em28xx.h"
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2006-01-09 17:25:14 +00:00
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#include <media/v4l2-common.h>
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2006-03-19 15:35:57 +00:00
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#include <media/msp3400.h>
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V4L/DVB (7060): em28xx: remove has_tuner
has_tuner flag doesn't make much sense, since tuner_type=TUNER_ABSENT
means the same thing.
Having two ways to say that a tuner is not present is
not nice, since it may lead to bad setups. In fact, with the previous
code, if a device were using has_tuner=0, but the user forces a tuner,
with modprobe option tuner=type, the modprobe option won't work.
Also, tveeprom returns TUNER_ABSENT, when tuner is unknown or absent.
So, with the previous logic, in this case, the driver should set
has_tuner=0, or has_tuner=1 otherwise.
Instead of adding several additional tests and setups, better just to
remove .has_tuner.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-24 09:59:20 +00:00
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#include <media/tuner.h>
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2005-11-09 05:37:07 +00:00
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2005-11-09 05:38:25 +00:00
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#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \
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"Markus Rechberger <mrechberger@gmail.com>, " \
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2006-04-03 10:53:40 +00:00
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"Mauro Carvalho Chehab <mchehab@infradead.org>, " \
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2005-11-09 05:38:25 +00:00
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"Sascha Sommer <saschasommer@freenet.de>"
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2005-11-09 05:37:07 +00:00
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2005-11-09 05:38:25 +00:00
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#define DRIVER_NAME "em28xx"
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#define DRIVER_DESC "Empia em28xx based USB video device driver"
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2007-11-11 16:17:17 +00:00
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#define EM28XX_VERSION_CODE KERNEL_VERSION(0, 1, 0)
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2005-11-09 05:37:07 +00:00
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2005-11-09 05:38:27 +00:00
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#define em28xx_videodbg(fmt, arg...) do {\
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2005-11-09 05:37:43 +00:00
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if (video_debug) \
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printk(KERN_INFO "%s %s :"fmt, \
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2005-12-19 10:53:59 +00:00
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dev->name, __FUNCTION__ , ##arg); } while (0)
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2005-11-09 05:37:07 +00:00
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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2005-11-09 05:38:27 +00:00
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static LIST_HEAD(em28xx_devlist);
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2005-11-09 05:37:52 +00:00
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2005-11-09 05:38:52 +00:00
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static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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2006-01-23 19:11:08 +00:00
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static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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2008-01-05 20:22:01 +00:00
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static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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2005-11-09 05:37:24 +00:00
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module_param_array(card, int, NULL, 0444);
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2006-01-23 19:11:08 +00:00
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module_param_array(video_nr, int, NULL, 0444);
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module_param_array(vbi_nr, int, NULL, 0444);
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2008-01-05 20:22:01 +00:00
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module_param_array(radio_nr, int, NULL, 0444);
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MODULE_PARM_DESC(card, "card type");
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MODULE_PARM_DESC(video_nr, "video device numbers");
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MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
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MODULE_PARM_DESC(radio_nr, "radio device numbers");
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2005-11-09 05:37:24 +00:00
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2005-11-09 05:37:07 +00:00
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static unsigned int video_debug = 0;
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module_param(video_debug,int,0644);
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MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
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2006-01-23 19:11:08 +00:00
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/* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */
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static unsigned long em28xx_devused;
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2005-11-09 05:37:07 +00:00
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/* supported controls */
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2006-01-09 17:25:14 +00:00
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/* Common to all boards */
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2005-11-09 05:38:27 +00:00
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static struct v4l2_queryctrl em28xx_qctrl[] = {
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2006-01-09 17:25:14 +00:00
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{
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.id = V4L2_CID_AUDIO_VOLUME,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Volume",
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.minimum = 0x0,
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.maximum = 0x1f,
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.step = 0x1,
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.default_value = 0x1f,
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.flags = 0,
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},{
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.id = V4L2_CID_AUDIO_MUTE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 1,
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.flags = 0,
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}
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};
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2005-11-09 05:38:27 +00:00
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static struct usb_driver em28xx_usb_driver;
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2005-11-09 05:37:07 +00:00
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/********************* v4l2 interface ******************************************/
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/*
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2005-11-09 05:38:27 +00:00
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* em28xx_config()
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2005-11-09 05:37:07 +00:00
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* inits registers with sane defaults
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*/
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2005-11-09 05:38:27 +00:00
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static int em28xx_config(struct em28xx *dev)
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2005-11-09 05:37:07 +00:00
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{
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/* Sets I2C speed to 100 KHz */
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2007-11-03 19:48:01 +00:00
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if (!dev->is_em2800)
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em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1);
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2005-11-09 05:37:07 +00:00
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/* enable vbi capturing */
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2006-01-23 19:11:08 +00:00
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2006-02-27 03:07:34 +00:00
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/* em28xx_write_regs_req(dev,0x00,0x0e,"\xC0",1); audio register */
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/* em28xx_write_regs_req(dev,0x00,0x0f,"\x80",1); clk register */
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2006-01-23 19:11:08 +00:00
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em28xx_write_regs_req(dev,0x00,0x11,"\x51",1);
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2005-11-09 05:37:07 +00:00
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dev->mute = 1; /* maybe not the right place... */
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dev->volume = 0x1f;
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2008-01-05 12:53:54 +00:00
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2005-11-09 05:38:27 +00:00
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em28xx_outfmt_set_yuv422(dev);
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em28xx_colorlevels_set_default(dev);
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em28xx_compression_disable(dev);
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2005-11-09 05:37:07 +00:00
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return 0;
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}
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/*
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2005-11-09 05:38:27 +00:00
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* em28xx_config_i2c()
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2005-11-09 05:37:07 +00:00
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* configure i2c attached devices
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*/
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2005-12-01 08:51:35 +00:00
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static void em28xx_config_i2c(struct em28xx *dev)
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2005-11-09 05:37:07 +00:00
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{
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2006-04-02 16:35:00 +00:00
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struct v4l2_routing route;
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route.input = INPUT(dev->ctl_input)->vmux;
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route.output = 0;
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2006-10-10 21:48:37 +00:00
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em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, NULL);
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2006-04-02 16:35:00 +00:00
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em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
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2006-03-13 16:31:31 +00:00
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em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL);
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2005-11-09 05:37:07 +00:00
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}
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/*
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2005-11-09 05:38:27 +00:00
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* em28xx_empty_framequeues()
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2005-11-09 05:37:07 +00:00
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* prepare queues for incoming and outgoing frames
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*/
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2005-11-09 05:38:27 +00:00
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static void em28xx_empty_framequeues(struct em28xx *dev)
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2005-11-09 05:37:07 +00:00
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{
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u32 i;
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INIT_LIST_HEAD(&dev->inqueue);
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INIT_LIST_HEAD(&dev->outqueue);
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2005-11-09 05:38:27 +00:00
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for (i = 0; i < EM28XX_NUM_FRAMES; i++) {
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2005-11-09 05:37:07 +00:00
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dev->frame[i].state = F_UNUSED;
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dev->frame[i].buf.bytesused = 0;
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}
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}
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2005-11-09 05:38:43 +00:00
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static void video_mux(struct em28xx *dev, int index)
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{
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2006-04-02 16:35:00 +00:00
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struct v4l2_routing route;
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2005-11-09 05:38:43 +00:00
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2006-04-02 16:35:00 +00:00
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route.input = INPUT(index)->vmux;
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route.output = 0;
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2005-11-09 05:38:43 +00:00
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dev->ctl_input = index;
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dev->ctl_ainput = INPUT(index)->amux;
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2006-04-02 16:35:00 +00:00
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em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
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2005-11-09 05:38:43 +00:00
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if (dev->has_msp34xx) {
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2006-01-09 17:25:37 +00:00
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if (dev->i2s_speed)
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em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, &dev->i2s_speed);
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2006-03-19 15:35:57 +00:00
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route.input = dev->ctl_ainput;
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2006-04-01 21:03:23 +00:00
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route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
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2006-03-19 15:35:57 +00:00
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/* Note: this is msp3400 specific */
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em28xx_i2c_call_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING, &route);
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2005-11-09 05:38:43 +00:00
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}
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2008-01-05 12:53:54 +00:00
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em28xx_set_audio_source(dev);
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2005-11-09 05:38:43 +00:00
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}
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2007-11-11 04:08:26 +00:00
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/* Usage lock check functions */
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static int res_get(struct em28xx_fh *fh)
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{
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struct em28xx *dev = fh->dev;
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int rc = 0;
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/* This instance already has stream_on */
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if (fh->stream_on)
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return rc;
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mutex_lock(&dev->lock);
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if (dev->stream_on)
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rc = -EINVAL;
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else {
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dev->stream_on = 1;
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fh->stream_on = 1;
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}
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mutex_unlock(&dev->lock);
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return rc;
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}
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static int res_check(struct em28xx_fh *fh)
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{
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return (fh->stream_on);
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}
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static void res_free(struct em28xx_fh *fh)
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{
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struct em28xx *dev = fh->dev;
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mutex_lock(&dev->lock);
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fh->stream_on = 0;
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dev->stream_on = 0;
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mutex_unlock(&dev->lock);
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}
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2005-11-09 05:37:07 +00:00
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/*
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2007-11-11 16:17:17 +00:00
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* em28xx_vm_open()
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2005-11-09 05:37:07 +00:00
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*/
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2007-11-11 16:17:17 +00:00
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static void em28xx_vm_open(struct vm_area_struct *vma)
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2005-11-09 05:37:07 +00:00
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{
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2007-11-11 16:17:17 +00:00
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struct em28xx_frame_t *f = vma->vm_private_data;
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f->vma_use_count++;
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}
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2005-11-09 05:37:52 +00:00
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2007-11-11 16:17:17 +00:00
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/*
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* em28xx_vm_close()
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*/
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static void em28xx_vm_close(struct vm_area_struct *vma)
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{
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/* NOTE: buffers are not freed here */
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struct em28xx_frame_t *f = vma->vm_private_data;
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2005-11-09 05:37:52 +00:00
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2007-11-11 16:17:17 +00:00
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if (f->vma_use_count)
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f->vma_use_count--;
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}
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2005-11-09 05:37:07 +00:00
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2007-11-11 16:17:17 +00:00
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static struct vm_operations_struct em28xx_vm_ops = {
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.open = em28xx_vm_open,
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.close = em28xx_vm_close,
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};
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2005-11-09 05:37:07 +00:00
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2007-11-11 16:17:17 +00:00
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/*
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* em28xx_get_ctrl()
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* return the current saturation, brightness or contrast, mute state
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*/
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static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl)
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{
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value = dev->mute;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value = dev->volume;
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return 0;
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default:
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return -EINVAL;
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2005-11-09 05:37:07 +00:00
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}
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2007-11-11 16:17:17 +00:00
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}
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2005-11-09 05:37:07 +00:00
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|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_set_ctrl()
|
|
|
|
* mute or set new saturation, brightness or contrast
|
|
|
|
*/
|
|
|
|
static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl)
|
|
|
|
{
|
|
|
|
switch (ctrl->id) {
|
|
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
|
|
if (ctrl->value != dev->mute) {
|
|
|
|
dev->mute = ctrl->value;
|
|
|
|
return em28xx_audio_analog_set(dev);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
|
|
dev->volume = ctrl->value;
|
|
|
|
return em28xx_audio_analog_set(dev);
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_stream_interrupt()
|
|
|
|
* stops streaming
|
|
|
|
*/
|
|
|
|
static int em28xx_stream_interrupt(struct em28xx *dev)
|
|
|
|
{
|
|
|
|
int rc = 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* stop reading from the device */
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->stream = STREAM_INTERRUPT;
|
|
|
|
rc = wait_event_timeout(dev->wait_stream,
|
|
|
|
(dev->stream == STREAM_OFF) ||
|
|
|
|
(dev->state & DEV_DISCONNECTED),
|
|
|
|
EM28XX_URB_TIMEOUT);
|
2006-02-07 08:49:13 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (rc) {
|
|
|
|
dev->state |= DEV_MISCONFIGURED;
|
|
|
|
em28xx_videodbg("device is misconfigured; close and "
|
|
|
|
"open /dev/video%d again\n",
|
|
|
|
dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN);
|
|
|
|
return rc;
|
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int check_dev(struct em28xx *dev)
|
|
|
|
{
|
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
em28xx_errdev("v4l2 ioctl: device not present\n");
|
|
|
|
return -ENODEV;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_MISCONFIGURED) {
|
|
|
|
em28xx_errdev("v4l2 ioctl: device is misconfigured; "
|
|
|
|
"close and open it again\n");
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static void get_scale(struct em28xx *dev,
|
|
|
|
unsigned int width, unsigned int height,
|
|
|
|
unsigned int *hscale, unsigned int *vscale)
|
|
|
|
{
|
|
|
|
unsigned int maxw = norm_maxw(dev);
|
|
|
|
unsigned int maxh = norm_maxh(dev);
|
|
|
|
|
|
|
|
*hscale = (((unsigned long)maxw) << 12) / width - 4096L;
|
|
|
|
if (*hscale >= 0x4000)
|
|
|
|
*hscale = 0x3fff;
|
|
|
|
|
|
|
|
*vscale = (((unsigned long)maxh) << 12) / height - 4096L;
|
|
|
|
if (*vscale >= 0x4000)
|
|
|
|
*vscale = 0x3fff;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* ------------------------------------------------------------------
|
|
|
|
IOCTL vidioc handling
|
|
|
|
------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
static int vidioc_g_fmt_cap(struct file *file, void *priv,
|
|
|
|
struct v4l2_format *f)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
f->fmt.pix.width = dev->width;
|
|
|
|
f->fmt.pix.height = dev->height;
|
|
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
|
|
|
|
f->fmt.pix.bytesperline = dev->bytesperline;
|
|
|
|
f->fmt.pix.sizeimage = dev->frame_size;
|
|
|
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
|
|
|
|
f->fmt.pix.field = dev->interlaced ?
|
|
|
|
V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_try_fmt_cap(struct file *file, void *priv,
|
|
|
|
struct v4l2_format *f)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int width = f->fmt.pix.width;
|
|
|
|
int height = f->fmt.pix.height;
|
|
|
|
unsigned int maxw = norm_maxw(dev);
|
|
|
|
unsigned int maxh = norm_maxh(dev);
|
|
|
|
unsigned int hscale, vscale;
|
|
|
|
|
|
|
|
/* width must even because of the YUYV format
|
|
|
|
height must be even because of interlacing */
|
|
|
|
height &= 0xfffe;
|
|
|
|
width &= 0xfffe;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (height < 32)
|
|
|
|
height = 32;
|
|
|
|
if (height > maxh)
|
|
|
|
height = maxh;
|
|
|
|
if (width < 48)
|
|
|
|
width = 48;
|
|
|
|
if (width > maxw)
|
|
|
|
width = maxw;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->is_em2800) {
|
|
|
|
/* the em2800 can only scale down to 50% */
|
|
|
|
if (height % (maxh / 2))
|
|
|
|
height = maxh;
|
|
|
|
if (width % (maxw / 2))
|
|
|
|
width = maxw;
|
|
|
|
/* according to empiatech support */
|
|
|
|
/* the MaxPacketSize is to small to support */
|
|
|
|
/* framesizes larger than 640x480 @ 30 fps */
|
|
|
|
/* or 640x576 @ 25 fps. As this would cut */
|
|
|
|
/* of a part of the image we prefer */
|
|
|
|
/* 360x576 or 360x480 for now */
|
|
|
|
if (width == maxw && height == maxh)
|
|
|
|
width /= 2;
|
|
|
|
}
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
get_scale(dev, width, height, &hscale, &vscale);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
|
|
|
|
height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
f->fmt.pix.width = width;
|
|
|
|
f->fmt.pix.height = height;
|
|
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
|
|
|
|
f->fmt.pix.bytesperline = width * 2;
|
|
|
|
f->fmt.pix.sizeimage = width * 2 * height;
|
|
|
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
|
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_s_fmt_cap(struct file *file, void *priv,
|
|
|
|
struct v4l2_format *f)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc, i;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
vidioc_try_fmt_cap(file, priv, f);
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
for (i = 0; i < dev->num_frames; i++)
|
|
|
|
if (dev->frame[i].vma_use_count) {
|
|
|
|
em28xx_videodbg("VIDIOC_S_FMT failed. "
|
|
|
|
"Unmap the buffers first.\n");
|
|
|
|
rc = -EINVAL;
|
|
|
|
goto err;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
/* stop io in case it is already in progress */
|
|
|
|
if (dev->stream == STREAM_ON) {
|
|
|
|
em28xx_videodbg("VIDIOC_SET_FMT: interrupting stream\n");
|
|
|
|
rc = em28xx_stream_interrupt(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
goto err;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_release_buffers(dev);
|
|
|
|
dev->io = IO_NONE;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* set new image size */
|
|
|
|
dev->width = f->fmt.pix.width;
|
|
|
|
dev->height = f->fmt.pix.height;
|
|
|
|
dev->frame_size = dev->width * dev->height * 2;
|
|
|
|
dev->field_size = dev->frame_size >> 1;
|
|
|
|
dev->bytesperline = dev->width * 2;
|
|
|
|
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* FIXME: This is really weird! Why capture is starting with
|
|
|
|
this ioctl ???
|
|
|
|
*/
|
|
|
|
em28xx_uninit_isoc(dev);
|
|
|
|
em28xx_set_alternate(dev);
|
|
|
|
em28xx_capture_start(dev, 1);
|
|
|
|
em28xx_resolution_set(dev);
|
|
|
|
em28xx_init_isoc(dev);
|
|
|
|
rc = 0;
|
|
|
|
|
|
|
|
err:
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
struct v4l2_format f;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
2007-11-11 17:15:34 +00:00
|
|
|
dev->norm = *norm;
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* Adjusts width/height, if needed */
|
|
|
|
f.fmt.pix.width = dev->width;
|
|
|
|
f.fmt.pix.height = dev->height;
|
|
|
|
vidioc_try_fmt_cap(file, priv, &f);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* set new image size */
|
|
|
|
dev->width = f.fmt.pix.width;
|
|
|
|
dev->height = f.fmt.pix.height;
|
|
|
|
dev->frame_size = dev->width * dev->height * 2;
|
|
|
|
dev->field_size = dev->frame_size >> 1;
|
|
|
|
dev->bytesperline = dev->width * 2;
|
|
|
|
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_resolution_set(dev);
|
2007-11-11 17:15:34 +00:00
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
2007-11-11 04:13:49 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static const char *iname[] = {
|
|
|
|
[EM28XX_VMUX_COMPOSITE1] = "Composite1",
|
|
|
|
[EM28XX_VMUX_COMPOSITE2] = "Composite2",
|
|
|
|
[EM28XX_VMUX_COMPOSITE3] = "Composite3",
|
|
|
|
[EM28XX_VMUX_COMPOSITE4] = "Composite4",
|
|
|
|
[EM28XX_VMUX_SVIDEO] = "S-Video",
|
|
|
|
[EM28XX_VMUX_TELEVISION] = "Television",
|
|
|
|
[EM28XX_VMUX_CABLE] = "Cable TV",
|
|
|
|
[EM28XX_VMUX_DVB] = "DVB",
|
|
|
|
[EM28XX_VMUX_DEBUG] = "for debug only",
|
|
|
|
};
|
2007-11-11 04:13:49 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
|
|
|
struct v4l2_input *i)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
unsigned int n;
|
2007-11-11 04:13:49 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
n = i->index;
|
|
|
|
if (n >= MAX_EM28XX_INPUT)
|
|
|
|
return -EINVAL;
|
|
|
|
if (0 == INPUT(n)->type)
|
|
|
|
return -EINVAL;
|
2007-11-11 04:13:49 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
i->index = n;
|
|
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
strcpy(i->name, iname[INPUT(n)->type]);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) ||
|
|
|
|
(EM28XX_VMUX_CABLE == INPUT(n)->type))
|
|
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
|
|
|
2007-11-11 17:15:34 +00:00
|
|
|
i->std = dev->vdev->tvnorms;
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
*i = dev->ctl_input;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (i >= MAX_EM28XX_INPUT)
|
|
|
|
return -EINVAL;
|
|
|
|
if (0 == INPUT(i)->type)
|
|
|
|
return -EINVAL;
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
video_mux(dev, i);
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
unsigned int index = a->index;
|
|
|
|
|
|
|
|
if (a->index > 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
index = dev->ctl_ainput;
|
|
|
|
|
|
|
|
if (index == 0) {
|
|
|
|
strcpy(a->name, "Television");
|
2005-11-09 05:37:07 +00:00
|
|
|
} else {
|
2007-11-11 16:17:17 +00:00
|
|
|
strcpy(a->name, "Line In");
|
|
|
|
}
|
|
|
|
a->capability = V4L2_AUDCAP_STEREO;
|
|
|
|
a->index = index;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
|
|
|
|
if (a->index != dev->ctl_ainput)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_queryctrl *qc)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int id = qc->id;
|
|
|
|
int i;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
memset(qc, 0, sizeof(*qc));
|
|
|
|
|
|
|
|
qc->id = id;
|
|
|
|
|
|
|
|
if (!dev->has_msp34xx) {
|
|
|
|
for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) {
|
|
|
|
if (qc->id && qc->id == em28xx_qctrl[i].id) {
|
|
|
|
memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc));
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_QUERYCTRL, qc);
|
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (qc->type)
|
|
|
|
return 0;
|
|
|
|
else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (!dev->has_msp34xx)
|
|
|
|
rc = em28xx_get_ctrl(dev, ctrl);
|
|
|
|
else
|
|
|
|
rc = -EINVAL;
|
|
|
|
|
|
|
|
if (rc == -EINVAL) {
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_G_CTRL, ctrl);
|
|
|
|
rc = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
u8 i;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
if (dev->has_msp34xx)
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl);
|
|
|
|
else {
|
|
|
|
rc = 1;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) {
|
|
|
|
if (ctrl->id == em28xx_qctrl[i].id) {
|
|
|
|
if (ctrl->value < em28xx_qctrl[i].minimum ||
|
|
|
|
ctrl->value > em28xx_qctrl[i].maximum) {
|
|
|
|
rc = -ERANGE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = em28xx_set_ctrl(dev, ctrl);
|
|
|
|
break;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* Control not found - try to send it to the attached devices */
|
|
|
|
if (rc == 1) {
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl);
|
|
|
|
rc = 0;
|
|
|
|
}
|
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *t)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (0 != t->index)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
strcpy(t->name, "Tuner");
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *t)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
2007-11-10 13:26:20 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (0 != t->index)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t);
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
|
|
struct v4l2_frequency *f)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
|
2007-11-11 16:17:17 +00:00
|
|
|
f->frequency = dev->ctl_freq;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
|
|
struct v4l2_frequency *f)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
2005-11-09 05:37:52 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (0 != f->tuner)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
|
|
|
|
return -EINVAL;
|
|
|
|
if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
|
2007-11-11 16:17:17 +00:00
|
|
|
return -EINVAL;
|
2007-11-11 04:08:26 +00:00
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
2007-11-11 01:21:01 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->ctl_freq = f->frequency;
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_cropcap(struct file *file, void *priv,
|
|
|
|
struct v4l2_cropcap *cc)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
|
|
|
|
if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
2005-11-09 05:37:07 +00:00
|
|
|
return -EINVAL;
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
cc->bounds.left = 0;
|
|
|
|
cc->bounds.top = 0;
|
|
|
|
cc->bounds.width = dev->width;
|
|
|
|
cc->bounds.height = dev->height;
|
|
|
|
cc->defrect = cc->bounds;
|
|
|
|
cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
|
|
|
|
cc->pixelaspect.denominator = 59;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv,
|
|
|
|
enum v4l2_buf_type type)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || dev->io != IO_MMAP)
|
2005-11-09 05:37:07 +00:00
|
|
|
return -EINVAL;
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
if (list_empty(&dev->inqueue))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
if (unlikely(res_get(fh) < 0)) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EBUSY;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->stream = STREAM_ON; /* FIXME: Start video capture here? */
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv,
|
|
|
|
enum v4l2_buf_type type)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || dev->io != IO_MMAP)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
if (dev->stream == STREAM_ON) {
|
|
|
|
em28xx_videodbg("VIDIOC_STREAMOFF: interrupting stream\n");
|
|
|
|
rc = em28xx_stream_interrupt(dev);
|
|
|
|
if (rc < 0) {
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_empty_framequeues(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
|
|
struct v4l2_capability *cap)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
|
|
|
|
strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
|
|
|
|
strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
|
|
|
|
strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
|
|
|
|
|
|
|
|
cap->version = EM28XX_VERSION_CODE;
|
|
|
|
|
|
|
|
cap->capabilities =
|
|
|
|
V4L2_CAP_SLICED_VBI_CAPTURE |
|
|
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
|
|
|
V4L2_CAP_AUDIO |
|
|
|
|
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
|
|
|
|
|
V4L/DVB (7060): em28xx: remove has_tuner
has_tuner flag doesn't make much sense, since tuner_type=TUNER_ABSENT
means the same thing.
Having two ways to say that a tuner is not present is
not nice, since it may lead to bad setups. In fact, with the previous
code, if a device were using has_tuner=0, but the user forces a tuner,
with modprobe option tuner=type, the modprobe option won't work.
Also, tveeprom returns TUNER_ABSENT, when tuner is unknown or absent.
So, with the previous logic, in this case, the driver should set
has_tuner=0, or has_tuner=1 otherwise.
Instead of adding several additional tests and setups, better just to
remove .has_tuner.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-24 09:59:20 +00:00
|
|
|
if (dev->tuner_type != TUNER_ABSENT)
|
2007-11-11 16:17:17 +00:00
|
|
|
cap->capabilities |= V4L2_CAP_TUNER;
|
|
|
|
|
|
|
|
return 0;
|
2006-01-09 17:25:14 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_enum_fmt_cap(struct file *file, void *priv,
|
|
|
|
struct v4l2_fmtdesc *fmtd)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
if (fmtd->index != 0)
|
2006-01-09 17:25:14 +00:00
|
|
|
return -EINVAL;
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
strcpy(fmtd->description, "Packed YUY2");
|
|
|
|
fmtd->pixelformat = V4L2_PIX_FMT_YUYV;
|
|
|
|
memset(fmtd->reserved, 0, sizeof(fmtd->reserved));
|
|
|
|
|
|
|
|
return 0;
|
2006-01-09 17:25:14 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* Sliced VBI ioctls */
|
|
|
|
static int vidioc_g_fmt_vbi_capture(struct file *file, void *priv,
|
|
|
|
struct v4l2_format *f)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
|
|
|
|
f->fmt.sliced.service_set = 0;
|
|
|
|
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f);
|
|
|
|
|
|
|
|
if (f->fmt.sliced.service_set == 0)
|
|
|
|
rc = -EINVAL;
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_try_set_vbi_capture(struct file *file, void *priv,
|
|
|
|
struct v4l2_format *f)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
|
|
|
|
if (f->fmt.sliced.service_set == 0)
|
|
|
|
return -EINVAL;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
|
|
struct v4l2_requestbuffers *rb)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
u32 i;
|
|
|
|
int rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
|
|
rb->memory != V4L2_MEMORY_MMAP)
|
|
|
|
return -EINVAL;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->io == IO_READ) {
|
|
|
|
em28xx_videodbg("method is set to read;"
|
|
|
|
" close and open the device again to"
|
|
|
|
" choose the mmap I/O method\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
for (i = 0; i < dev->num_frames; i++)
|
|
|
|
if (dev->frame[i].vma_use_count) {
|
|
|
|
em28xx_videodbg("VIDIOC_REQBUFS failed; "
|
|
|
|
"previous buffers are still mapped\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->stream == STREAM_ON) {
|
|
|
|
em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n");
|
|
|
|
rc = em28xx_stream_interrupt(dev);
|
|
|
|
if (rc < 0) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_empty_framequeues(dev);
|
|
|
|
|
|
|
|
em28xx_release_buffers(dev);
|
|
|
|
if (rb->count)
|
|
|
|
rb->count = em28xx_request_buffers(dev, rb->count);
|
|
|
|
|
|
|
|
dev->frame_current = NULL;
|
|
|
|
dev->io = rb->count ? IO_MMAP : IO_NONE;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_querybuf(struct file *file, void *priv,
|
|
|
|
struct v4l2_buffer *b)
|
2006-01-23 19:11:08 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
|
|
b->index >= dev->num_frames || dev->io != IO_MMAP)
|
|
|
|
return -EINVAL;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
memcpy(b, &dev->frame[b->index].buf, sizeof(*b));
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->frame[b->index].vma_use_count)
|
|
|
|
b->flags |= V4L2_BUF_FLAG_MAPPED;
|
|
|
|
|
|
|
|
if (dev->frame[b->index].state == F_DONE)
|
|
|
|
b->flags |= V4L2_BUF_FLAG_DONE;
|
|
|
|
else if (dev->frame[b->index].state != F_UNUSED)
|
|
|
|
b->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
|
|
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
unsigned long lock_flags;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || dev->io != IO_MMAP ||
|
|
|
|
b->index >= dev->num_frames)
|
2006-01-23 19:11:08 +00:00
|
|
|
return -EINVAL;
|
2007-11-11 16:17:17 +00:00
|
|
|
|
|
|
|
if (dev->frame[b->index].state != F_UNUSED)
|
|
|
|
return -EAGAIN;
|
|
|
|
|
|
|
|
dev->frame[b->index].state = F_QUEUED;
|
|
|
|
|
|
|
|
/* add frame to fifo */
|
|
|
|
spin_lock_irqsave(&dev->queue_lock, lock_flags);
|
|
|
|
list_add_tail(&dev->frame[b->index].frame, &dev->inqueue);
|
|
|
|
spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
|
|
|
|
|
|
|
|
return 0;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
2006-01-23 19:11:08 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx_fh *fh = priv;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int rc;
|
|
|
|
struct em28xx_frame_t *f;
|
|
|
|
unsigned long lock_flags;
|
|
|
|
|
|
|
|
rc = check_dev(dev);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || dev->io != IO_MMAP)
|
|
|
|
return -EINVAL;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (list_empty(&dev->outqueue)) {
|
|
|
|
if (dev->stream == STREAM_OFF)
|
|
|
|
return -EINVAL;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (file->f_flags & O_NONBLOCK)
|
|
|
|
return -EAGAIN;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
rc = wait_event_interruptible(dev->wait_frame,
|
|
|
|
(!list_empty(&dev->outqueue)) ||
|
|
|
|
(dev->state & DEV_DISCONNECTED));
|
|
|
|
if (rc)
|
|
|
|
return rc;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_DISCONNECTED)
|
|
|
|
return -ENODEV;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
spin_lock_irqsave(&dev->queue_lock, lock_flags);
|
|
|
|
f = list_entry(dev->outqueue.next, struct em28xx_frame_t, frame);
|
|
|
|
list_del(dev->outqueue.next);
|
|
|
|
spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
f->state = F_UNUSED;
|
|
|
|
memcpy(b, &f->buf, sizeof(*b));
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (f->vma_use_count)
|
|
|
|
b->flags |= V4L2_BUF_FLAG_MAPPED;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
/* ----------------------------------------------------------- */
|
|
|
|
/* RADIO ESPECIFIC IOCTLS */
|
|
|
|
/* ----------------------------------------------------------- */
|
|
|
|
|
|
|
|
static int radio_querycap(struct file *file, void *priv,
|
|
|
|
struct v4l2_capability *cap)
|
|
|
|
{
|
|
|
|
struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
|
|
|
|
|
|
|
|
strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
|
|
|
|
strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
|
|
|
|
strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
|
|
|
|
|
|
|
|
cap->version = EM28XX_VERSION_CODE;
|
|
|
|
cap->capabilities = V4L2_CAP_TUNER;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_g_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *t)
|
|
|
|
{
|
|
|
|
struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
|
|
|
|
|
|
|
|
if (unlikely(t->index > 0))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
strcpy(t->name, "Radio");
|
|
|
|
t->type = V4L2_TUNER_RADIO;
|
|
|
|
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_enum_input(struct file *file, void *priv,
|
|
|
|
struct v4l2_input *i)
|
|
|
|
{
|
|
|
|
if (i->index != 0)
|
|
|
|
return -EINVAL;
|
|
|
|
strcpy(i->name, "Radio");
|
|
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
|
|
{
|
|
|
|
if (unlikely(a->index))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
strcpy(a->name, "Radio");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_s_tuner(struct file *file, void *priv,
|
|
|
|
struct v4l2_tuner *t)
|
|
|
|
{
|
|
|
|
struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
|
|
|
|
|
|
|
|
if (0 != t->index)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_s_audio(struct file *file, void *fh,
|
|
|
|
struct v4l2_audio *a)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_s_input(struct file *file, void *fh, unsigned int i)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int radio_queryctrl(struct file *file, void *priv,
|
|
|
|
struct v4l2_queryctrl *qc)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (qc->id < V4L2_CID_BASE ||
|
|
|
|
qc->id >= V4L2_CID_LASTP1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) {
|
|
|
|
if (qc->id && qc->id == em28xx_qctrl[i].id) {
|
|
|
|
memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_v4l2_open()
|
|
|
|
* inits the device and starts isoc transfer
|
|
|
|
*/
|
|
|
|
static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
|
|
|
|
{
|
|
|
|
int minor = iminor(inode);
|
2008-01-05 20:22:01 +00:00
|
|
|
int errCode = 0, radio = 0;
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx *h,*dev = NULL;
|
|
|
|
struct em28xx_fh *fh;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
list_for_each_entry(h, &em28xx_devlist, devlist) {
|
|
|
|
if (h->vdev->minor == minor) {
|
|
|
|
dev = h;
|
|
|
|
dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
}
|
|
|
|
if (h->vbi_dev->minor == minor) {
|
|
|
|
dev = h;
|
|
|
|
dev->type = V4L2_BUF_TYPE_VBI_CAPTURE;
|
|
|
|
}
|
2008-01-05 20:22:01 +00:00
|
|
|
if (h->radio_dev &&
|
|
|
|
h->radio_dev->minor == minor) {
|
|
|
|
radio = 1;
|
|
|
|
dev = h;
|
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
if (NULL == dev)
|
|
|
|
return -ENODEV;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_videodbg("open minor=%d type=%s users=%d\n",
|
|
|
|
minor,v4l2_type_names[dev->type],dev->users);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL);
|
2006-01-23 19:11:09 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (!fh) {
|
|
|
|
em28xx_errdev("em28xx-video.c: Out of memory?!\n");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
fh->dev = dev;
|
2008-01-05 20:22:01 +00:00
|
|
|
fh->radio = radio;
|
2007-11-11 16:17:17 +00:00
|
|
|
filp->private_data = fh;
|
2006-01-23 19:11:09 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
|
|
|
|
em28xx_set_alternate(dev);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->width = norm_maxw(dev);
|
|
|
|
dev->height = norm_maxh(dev);
|
|
|
|
dev->frame_size = dev->width * dev->height * 2;
|
|
|
|
dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */
|
|
|
|
dev->bytesperline = dev->width * 2;
|
|
|
|
dev->hscale = 0;
|
|
|
|
dev->vscale = 0;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_capture_start(dev, 1);
|
|
|
|
em28xx_resolution_set(dev);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* start the transfer */
|
|
|
|
errCode = em28xx_init_isoc(dev);
|
|
|
|
if (errCode)
|
|
|
|
goto err;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_empty_framequeues(dev);
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
2008-01-05 20:22:01 +00:00
|
|
|
if (fh->radio) {
|
|
|
|
em28xx_videodbg("video_open: setting radio device\n");
|
|
|
|
em28xx_i2c_call_clients(dev, AUDC_SET_RADIO, NULL);
|
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->users++;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
err:
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return errCode;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/*
|
2007-11-11 16:17:17 +00:00
|
|
|
* em28xx_realease_resources()
|
|
|
|
* unregisters the v4l2,i2c and usb devices
|
|
|
|
* called when the device gets disconected or at module unload
|
|
|
|
*/
|
|
|
|
static void em28xx_release_resources(struct em28xx *dev)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*FIXME: I2C IR should be disconnected */
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_info("V4L2 devices /dev/video%d and /dev/vbi%d deregistered\n",
|
|
|
|
dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
|
|
|
|
dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN);
|
|
|
|
list_del(&dev->devlist);
|
2008-01-05 20:22:01 +00:00
|
|
|
if (dev->radio_dev) {
|
|
|
|
if (-1 != dev->radio_dev->minor)
|
|
|
|
video_unregister_device(dev->radio_dev);
|
|
|
|
else
|
|
|
|
video_device_release(dev->radio_dev);
|
|
|
|
dev->radio_dev = NULL;
|
|
|
|
}
|
|
|
|
if (dev->vbi_dev) {
|
|
|
|
if (-1 != dev->vbi_dev->minor)
|
|
|
|
video_unregister_device(dev->vbi_dev);
|
|
|
|
else
|
|
|
|
video_device_release(dev->vbi_dev);
|
|
|
|
dev->vbi_dev = NULL;
|
|
|
|
}
|
|
|
|
if (dev->vdev) {
|
|
|
|
if (-1 != dev->vdev->minor)
|
|
|
|
video_unregister_device(dev->vdev);
|
|
|
|
else
|
|
|
|
video_device_release(dev->vdev);
|
|
|
|
dev->vdev = NULL;
|
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_i2c_unregister(dev);
|
|
|
|
usb_put_dev(dev->udev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* Mark device as unused */
|
|
|
|
em28xx_devused&=~(1<<dev->devno);
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_v4l2_close()
|
|
|
|
* stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls
|
|
|
|
*/
|
|
|
|
static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = filp->private_data;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
int errCode;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_videodbg("users=%d\n", dev->users);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (res_check(fh))
|
|
|
|
res_free(fh);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->users == 1) {
|
|
|
|
em28xx_uninit_isoc(dev);
|
|
|
|
em28xx_release_buffers(dev);
|
|
|
|
dev->io = IO_NONE;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* the device is already disconnect,
|
|
|
|
free the remaining resources */
|
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
em28xx_release_resources(dev);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
kfree(dev);
|
|
|
|
return 0;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* set alternate 0 */
|
|
|
|
dev->alt = 0;
|
|
|
|
em28xx_videodbg("setting alternate 0\n");
|
|
|
|
errCode = usb_set_interface(dev->udev, 0, 0);
|
|
|
|
if (errCode < 0) {
|
|
|
|
em28xx_errdev("cannot change alternate number to "
|
|
|
|
"0 (error=%i)\n", errCode);
|
|
|
|
}
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
kfree(fh);
|
|
|
|
dev->users--;
|
|
|
|
wake_up_interruptible_nr(&dev->open, 1);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_v4l2_read()
|
|
|
|
* will allocate buffers when called for the first time
|
|
|
|
*/
|
|
|
|
static ssize_t
|
|
|
|
em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
|
|
|
|
loff_t * f_pos)
|
|
|
|
{
|
|
|
|
struct em28xx_frame_t *f, *i;
|
|
|
|
unsigned long lock_flags;
|
|
|
|
int ret = 0;
|
|
|
|
struct em28xx_fh *fh = filp->private_data;
|
|
|
|
struct em28xx *dev = fh->dev;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* FIXME: read() is not prepared to allow changing the video
|
|
|
|
resolution while streaming. Seems a bug at em28xx_set_fmt
|
|
|
|
*/
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (unlikely(res_get(fh) < 0))
|
|
|
|
return -EBUSY;
|
2006-01-23 19:11:09 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
|
|
em28xx_videodbg("V4l2_Buf_type_videocapture is set\n");
|
|
|
|
|
|
|
|
if (dev->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
|
|
em28xx_videodbg("V4L2_BUF_TYPE_VBI_CAPTURE is set\n");
|
|
|
|
em28xx_videodbg("not supported yet! ...\n");
|
|
|
|
if (copy_to_user(buf, "", 1)) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EFAULT;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return (1);
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
|
|
|
|
em28xx_videodbg("V4L2_BUF_TYPE_SLICED_VBI_CAPTURE is set\n");
|
|
|
|
em28xx_videodbg("not supported yet! ...\n");
|
|
|
|
if (copy_to_user(buf, "", 1)) {
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return -EFAULT;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return (1);
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
em28xx_videodbg("device not present\n");
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_MISCONFIGURED) {
|
|
|
|
em28xx_videodbg("device misconfigured; close and open it again\n");
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return -EIO;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->io == IO_MMAP) {
|
|
|
|
em28xx_videodbg ("IO method is set to mmap; close and open"
|
|
|
|
" the device again to choose the read method\n");
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return -EINVAL;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->io == IO_NONE) {
|
|
|
|
if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) {
|
|
|
|
em28xx_errdev("read failed, not enough memory\n");
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
dev->io = IO_READ;
|
|
|
|
dev->stream = STREAM_ON;
|
|
|
|
em28xx_queue_unusedframes(dev);
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (!count) {
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2006-01-23 19:11:09 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (list_empty(&dev->outqueue)) {
|
|
|
|
if (filp->f_flags & O_NONBLOCK) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EAGAIN;
|
|
|
|
}
|
|
|
|
ret = wait_event_interruptible
|
|
|
|
(dev->wait_frame,
|
|
|
|
(!list_empty(&dev->outqueue)) ||
|
|
|
|
(dev->state & DEV_DISCONNECTED));
|
|
|
|
if (ret) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
dev->video_bytesread = 0;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
f = list_entry(dev->outqueue.prev, struct em28xx_frame_t, frame);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_queue_unusedframes(dev);
|
2007-11-11 04:08:26 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (count > f->buf.length)
|
|
|
|
count = f->buf.length;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if ((dev->video_bytesread + count) > dev->frame_size)
|
|
|
|
count = dev->frame_size - dev->video_bytesread;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (copy_to_user(buf, f->bufmem+dev->video_bytesread, count)) {
|
|
|
|
em28xx_err("Error while copying to user\n");
|
|
|
|
return -EFAULT;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->video_bytesread += count;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->video_bytesread == dev->frame_size) {
|
|
|
|
spin_lock_irqsave(&dev->queue_lock, lock_flags);
|
|
|
|
list_for_each_entry(i, &dev->outqueue, frame)
|
|
|
|
i->state = F_UNUSED;
|
|
|
|
INIT_LIST_HEAD(&dev->outqueue);
|
|
|
|
spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_queue_unusedframes(dev);
|
|
|
|
dev->video_bytesread = 0;
|
|
|
|
}
|
2007-11-11 01:21:01 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
*f_pos += count;
|
2006-01-23 19:11:09 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
|
|
|
|
return count;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2007-11-11 16:17:17 +00:00
|
|
|
* em28xx_v4l2_poll()
|
|
|
|
* will allocate buffers when called for the first time
|
2005-11-09 05:37:07 +00:00
|
|
|
*/
|
2007-11-11 16:17:17 +00:00
|
|
|
static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-11 16:17:17 +00:00
|
|
|
unsigned int mask = 0;
|
2007-11-11 01:21:01 +00:00
|
|
|
struct em28xx_fh *fh = filp->private_data;
|
2007-11-11 16:17:17 +00:00
|
|
|
struct em28xx *dev = fh->dev;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (unlikely(res_get(fh) < 0))
|
|
|
|
return POLLERR;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
em28xx_videodbg("device not present\n");
|
|
|
|
} else if (dev->state & DEV_MISCONFIGURED) {
|
|
|
|
em28xx_videodbg("device is misconfigured; close and open it again\n");
|
|
|
|
} else {
|
|
|
|
if (dev->io == IO_NONE) {
|
|
|
|
if (!em28xx_request_buffers
|
|
|
|
(dev, EM28XX_NUM_READ_FRAMES)) {
|
|
|
|
em28xx_warn
|
|
|
|
("poll() failed, not enough memory\n");
|
|
|
|
} else {
|
|
|
|
dev->io = IO_READ;
|
|
|
|
dev->stream = STREAM_ON;
|
|
|
|
}
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->io == IO_READ) {
|
|
|
|
em28xx_queue_unusedframes(dev);
|
|
|
|
poll_wait(filp, &dev->wait_frame, wait);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (!list_empty(&dev->outqueue))
|
|
|
|
mask |= POLLIN | POLLRDNORM;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
return mask;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return POLLERR;
|
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/*
|
|
|
|
* em28xx_v4l2_mmap()
|
|
|
|
*/
|
|
|
|
static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
|
|
|
|
{
|
|
|
|
struct em28xx_fh *fh = filp->private_data;
|
|
|
|
struct em28xx *dev = fh->dev;
|
|
|
|
unsigned long size = vma->vm_end - vma->vm_start;
|
|
|
|
unsigned long start = vma->vm_start;
|
|
|
|
void *pos;
|
|
|
|
u32 i;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (unlikely(res_get(fh) < 0))
|
|
|
|
return -EBUSY;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
|
|
em28xx_videodbg("mmap: device not present\n");
|
2007-11-04 00:22:38 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2007-11-11 16:17:17 +00:00
|
|
|
return -ENODEV;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->state & DEV_MISCONFIGURED) {
|
|
|
|
em28xx_videodbg ("mmap: Device is misconfigured; close and "
|
|
|
|
"open it again\n");
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EIO;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE)) {
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EINVAL;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
if (size > PAGE_ALIGN(dev->frame[0].buf.length))
|
|
|
|
size = PAGE_ALIGN(dev->frame[0].buf.length);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
for (i = 0; i < dev->num_frames; i++) {
|
|
|
|
if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
|
|
|
|
break;
|
2006-01-23 19:11:09 +00:00
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
if (i == dev->num_frames) {
|
|
|
|
em28xx_videodbg("mmap: user supplied mapping address is out of range\n");
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EINVAL;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* VM_IO is eventually going to replace PageReserved altogether */
|
|
|
|
vma->vm_flags |= VM_IO;
|
|
|
|
vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
pos = dev->frame[i].bufmem;
|
|
|
|
while (size > 0) { /* size is page-aligned */
|
|
|
|
if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
|
|
|
|
em28xx_videodbg("mmap: vm_insert_page failed\n");
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return -EAGAIN;
|
|
|
|
}
|
|
|
|
start += PAGE_SIZE;
|
|
|
|
pos += PAGE_SIZE;
|
|
|
|
size -= PAGE_SIZE;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
vma->vm_ops = &em28xx_vm_ops;
|
|
|
|
vma->vm_private_data = &dev->frame[i];
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
em28xx_vm_open(vma);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:33 +00:00
|
|
|
static const struct file_operations em28xx_v4l_fops = {
|
2007-11-11 16:17:17 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = em28xx_v4l2_open,
|
|
|
|
.release = em28xx_v4l2_close,
|
|
|
|
.read = em28xx_v4l2_read,
|
|
|
|
.poll = em28xx_v4l2_poll,
|
|
|
|
.mmap = em28xx_v4l2_mmap,
|
|
|
|
.ioctl = video_ioctl2,
|
|
|
|
.llseek = no_llseek,
|
|
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
|
|
};
|
2006-01-09 17:24:58 +00:00
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
static const struct file_operations radio_fops = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = em28xx_v4l2_open,
|
|
|
|
.release = em28xx_v4l2_close,
|
|
|
|
.ioctl = video_ioctl2,
|
|
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
|
|
.llseek = no_llseek,
|
|
|
|
};
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
static const struct video_device em28xx_video_template = {
|
|
|
|
.fops = &em28xx_v4l_fops,
|
|
|
|
.release = video_device_release,
|
|
|
|
|
|
|
|
.minor = -1,
|
|
|
|
.vidioc_querycap = vidioc_querycap,
|
|
|
|
.vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
|
|
|
|
.vidioc_g_fmt_cap = vidioc_g_fmt_cap,
|
|
|
|
.vidioc_try_fmt_cap = vidioc_try_fmt_cap,
|
|
|
|
.vidioc_s_fmt_cap = vidioc_s_fmt_cap,
|
|
|
|
.vidioc_g_audio = vidioc_g_audio,
|
|
|
|
.vidioc_s_audio = vidioc_s_audio,
|
|
|
|
.vidioc_cropcap = vidioc_cropcap,
|
|
|
|
|
|
|
|
.vidioc_g_fmt_vbi_capture = vidioc_g_fmt_vbi_capture,
|
|
|
|
.vidioc_try_fmt_vbi_capture = vidioc_try_set_vbi_capture,
|
|
|
|
.vidioc_s_fmt_vbi_capture = vidioc_try_set_vbi_capture,
|
|
|
|
|
|
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
|
|
.vidioc_s_std = vidioc_s_std,
|
|
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
|
|
.vidioc_g_input = vidioc_g_input,
|
|
|
|
.vidioc_s_input = vidioc_s_input,
|
|
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
|
|
.vidioc_streamon = vidioc_streamon,
|
|
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
|
|
|
|
|
|
.tvnorms = V4L2_STD_ALL,
|
2007-11-11 17:15:34 +00:00
|
|
|
.current_norm = V4L2_STD_PAL,
|
2005-11-09 05:37:07 +00:00
|
|
|
};
|
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
static struct video_device em28xx_radio_template = {
|
|
|
|
.name = "em28xx-radio",
|
|
|
|
.type = VID_TYPE_TUNER,
|
|
|
|
.fops = &radio_fops,
|
|
|
|
.minor = -1,
|
|
|
|
.vidioc_querycap = radio_querycap,
|
|
|
|
.vidioc_g_tuner = radio_g_tuner,
|
|
|
|
.vidioc_enum_input = radio_enum_input,
|
|
|
|
.vidioc_g_audio = radio_g_audio,
|
|
|
|
.vidioc_s_tuner = radio_s_tuner,
|
|
|
|
.vidioc_s_audio = radio_s_audio,
|
|
|
|
.vidioc_s_input = radio_s_input,
|
|
|
|
.vidioc_queryctrl = radio_queryctrl,
|
|
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
|
|
};
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/******************************** usb interface *****************************************/
|
|
|
|
|
2008-01-05 12:57:31 +00:00
|
|
|
|
|
|
|
static LIST_HEAD(em28xx_extension_devlist);
|
|
|
|
static DEFINE_MUTEX(em28xx_extension_devlist_lock);
|
|
|
|
|
|
|
|
int em28xx_register_extension(struct em28xx_ops *ops)
|
|
|
|
{
|
|
|
|
struct em28xx *h, *dev = NULL;
|
|
|
|
|
|
|
|
list_for_each_entry(h, &em28xx_devlist, devlist)
|
|
|
|
dev = h;
|
|
|
|
|
|
|
|
mutex_lock(&em28xx_extension_devlist_lock);
|
|
|
|
list_add_tail(&ops->next, &em28xx_extension_devlist);
|
|
|
|
if (dev)
|
|
|
|
ops->init(dev);
|
|
|
|
|
|
|
|
printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name);
|
|
|
|
mutex_unlock(&em28xx_extension_devlist_lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(em28xx_register_extension);
|
|
|
|
|
|
|
|
void em28xx_unregister_extension(struct em28xx_ops *ops)
|
|
|
|
{
|
|
|
|
struct em28xx *h, *dev = NULL;
|
|
|
|
|
|
|
|
list_for_each_entry(h, &em28xx_devlist, devlist)
|
|
|
|
dev = h;
|
|
|
|
|
|
|
|
if (dev)
|
|
|
|
ops->fini(dev);
|
|
|
|
|
|
|
|
mutex_lock(&em28xx_extension_devlist_lock);
|
|
|
|
printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name);
|
|
|
|
list_del(&ops->next);
|
|
|
|
mutex_unlock(&em28xx_extension_devlist_lock);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(em28xx_unregister_extension);
|
|
|
|
|
2008-01-29 01:10:48 +00:00
|
|
|
static struct video_device *em28xx_vdev_init(struct em28xx *dev,
|
|
|
|
const struct video_device *template,
|
|
|
|
const int type,
|
|
|
|
const char *type_name)
|
2008-01-05 20:22:01 +00:00
|
|
|
{
|
|
|
|
struct video_device *vfd;
|
|
|
|
|
|
|
|
vfd = video_device_alloc();
|
|
|
|
if (NULL == vfd)
|
|
|
|
return NULL;
|
|
|
|
*vfd = *template;
|
|
|
|
vfd->minor = -1;
|
|
|
|
vfd->dev = &dev->udev->dev;
|
|
|
|
vfd->release = video_device_release;
|
|
|
|
vfd->type = type;
|
|
|
|
|
|
|
|
snprintf(vfd->name, sizeof(vfd->name), "%s %s",
|
|
|
|
dev->name, type_name);
|
|
|
|
|
|
|
|
return vfd;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/*
|
2005-11-09 05:38:27 +00:00
|
|
|
* em28xx_init_dev()
|
2005-11-09 05:37:07 +00:00
|
|
|
* allocates and inits the device structs, registers i2c bus and v4l device
|
|
|
|
*/
|
2005-11-09 05:38:27 +00:00
|
|
|
static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
|
2007-11-04 00:20:59 +00:00
|
|
|
int minor)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2008-01-05 12:57:31 +00:00
|
|
|
struct em28xx_ops *ops = NULL;
|
2005-11-09 05:38:27 +00:00
|
|
|
struct em28xx *dev = *devhandle;
|
2005-11-09 05:37:07 +00:00
|
|
|
int retval = -ENOMEM;
|
2007-11-11 17:15:34 +00:00
|
|
|
int errCode;
|
2005-11-09 05:37:07 +00:00
|
|
|
unsigned int maxh, maxw;
|
|
|
|
|
|
|
|
dev->udev = udev;
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_init(&dev->lock);
|
2007-11-11 01:21:01 +00:00
|
|
|
spin_lock_init(&dev->queue_lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
init_waitqueue_head(&dev->open);
|
2007-11-11 01:21:01 +00:00
|
|
|
init_waitqueue_head(&dev->wait_frame);
|
|
|
|
init_waitqueue_head(&dev->wait_stream);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
dev->em28xx_write_regs = em28xx_write_regs;
|
|
|
|
dev->em28xx_read_reg = em28xx_read_reg;
|
|
|
|
dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len;
|
|
|
|
dev->em28xx_write_regs_req = em28xx_write_regs_req;
|
|
|
|
dev->em28xx_read_reg_req = em28xx_read_reg_req;
|
2007-11-04 11:06:48 +00:00
|
|
|
dev->is_em2800 = em28xx_boards[dev->model].is_em2800;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 12:59:03 +00:00
|
|
|
errCode = em28xx_read_reg(dev, CHIPID_REG);
|
|
|
|
if (errCode >= 0)
|
|
|
|
em28xx_info("em28xx chip ID = %d\n", errCode);
|
|
|
|
|
2006-01-23 19:11:10 +00:00
|
|
|
em28xx_pre_card_setup(dev);
|
2007-11-04 00:20:59 +00:00
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
errCode = em28xx_config(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
if (errCode) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_errdev("error configuring device\n");
|
2007-11-04 00:20:59 +00:00
|
|
|
em28xx_devused &= ~(1<<dev->devno);
|
2006-04-11 21:19:33 +00:00
|
|
|
kfree(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* register i2c bus */
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_i2c_register(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
/* Do board specific init and eeprom reading */
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_card_setup(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 20:01:41 +00:00
|
|
|
/* Configure audio */
|
|
|
|
em28xx_audio_analog_set(dev);
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/* configure the device */
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_config_i2c(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-11 17:15:34 +00:00
|
|
|
/* set default norm */
|
|
|
|
dev->norm = em28xx_video_template.current_norm;
|
2007-11-04 00:20:59 +00:00
|
|
|
|
|
|
|
maxw = norm_maxw(dev);
|
|
|
|
maxh = norm_maxh(dev);
|
|
|
|
|
|
|
|
/* set default image size */
|
|
|
|
dev->width = maxw;
|
|
|
|
dev->height = maxh;
|
|
|
|
dev->interlaced = EM28XX_INTERLACED_DEFAULT;
|
|
|
|
dev->field_size = dev->width * dev->height;
|
|
|
|
dev->frame_size =
|
|
|
|
dev->interlaced ? dev->field_size << 1 : dev->field_size;
|
|
|
|
dev->bytesperline = dev->width * 2;
|
|
|
|
dev->hscale = 0;
|
|
|
|
dev->vscale = 0;
|
|
|
|
dev->ctl_input = 2;
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
errCode = em28xx_config(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 20:22:01 +00:00
|
|
|
list_add_tail(&dev->devlist, &em28xx_devlist);
|
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* allocate and fill video video_device struct */
|
2008-01-05 20:22:01 +00:00
|
|
|
dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template,
|
|
|
|
VID_TYPE_CAPTURE, "video");
|
2005-11-09 05:37:07 +00:00
|
|
|
if (NULL == dev->vdev) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_errdev("cannot allocate video_device.\n");
|
2008-01-05 20:22:01 +00:00
|
|
|
goto fail_unreg;
|
2006-01-23 19:11:08 +00:00
|
|
|
}
|
V4L/DVB (7060): em28xx: remove has_tuner
has_tuner flag doesn't make much sense, since tuner_type=TUNER_ABSENT
means the same thing.
Having two ways to say that a tuner is not present is
not nice, since it may lead to bad setups. In fact, with the previous
code, if a device were using has_tuner=0, but the user forces a tuner,
with modprobe option tuner=type, the modprobe option won't work.
Also, tveeprom returns TUNER_ABSENT, when tuner is unknown or absent.
So, with the previous logic, in this case, the driver should set
has_tuner=0, or has_tuner=1 otherwise.
Instead of adding several additional tests and setups, better just to
remove .has_tuner.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-24 09:59:20 +00:00
|
|
|
if (dev->tuner_type != TUNER_ABSENT)
|
2007-11-11 16:17:17 +00:00
|
|
|
dev->vdev->type |= VID_TYPE_TUNER;
|
2008-01-05 20:22:01 +00:00
|
|
|
|
|
|
|
/* register v4l2 video video_device */
|
|
|
|
retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
|
|
|
|
video_nr[dev->devno]);
|
|
|
|
if (retval) {
|
|
|
|
em28xx_errdev("unable to register video device (error=%i).\n",
|
|
|
|
retval);
|
|
|
|
goto fail_unreg;
|
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2007-11-11 16:17:17 +00:00
|
|
|
/* Allocate and fill vbi video_device struct */
|
2008-01-05 20:22:01 +00:00
|
|
|
dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
|
|
|
|
VFL_TYPE_VBI, "vbi");
|
|
|
|
/* register v4l2 vbi video_device */
|
|
|
|
if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
|
|
|
|
vbi_nr[dev->devno]) < 0) {
|
|
|
|
em28xx_errdev("unable to register vbi device\n");
|
|
|
|
retval = -ENODEV;
|
|
|
|
goto fail_unreg;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) {
|
|
|
|
dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template,
|
|
|
|
VFL_TYPE_RADIO, "radio");
|
|
|
|
if (NULL == dev->radio_dev) {
|
|
|
|
em28xx_errdev("cannot allocate video_device.\n");
|
|
|
|
goto fail_unreg;
|
|
|
|
}
|
|
|
|
retval = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
|
|
|
|
radio_nr[dev->devno]);
|
|
|
|
if (retval < 0) {
|
|
|
|
em28xx_errdev("can't register radio device\n");
|
|
|
|
goto fail_unreg;
|
|
|
|
}
|
|
|
|
em28xx_info("Registered radio device as /dev/radio%d\n",
|
|
|
|
dev->radio_dev->minor & 0x1f);
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
if (dev->has_msp34xx) {
|
|
|
|
/* Send a reset to other chips via gpio */
|
|
|
|
em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1);
|
|
|
|
msleep(3);
|
|
|
|
em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1);
|
|
|
|
msleep(3);
|
|
|
|
}
|
2007-11-11 16:17:17 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
video_mux(dev, 0);
|
|
|
|
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
|
|
|
|
dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
|
|
|
|
dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 12:57:31 +00:00
|
|
|
mutex_lock(&em28xx_extension_devlist_lock);
|
|
|
|
if (!list_empty(&em28xx_extension_devlist)) {
|
|
|
|
list_for_each_entry(ops, &em28xx_extension_devlist, next) {
|
|
|
|
if (ops->id)
|
|
|
|
ops->init(dev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
mutex_unlock(&em28xx_extension_devlist_lock);
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
return 0;
|
2008-01-05 20:22:01 +00:00
|
|
|
|
|
|
|
fail_unreg:
|
|
|
|
em28xx_release_resources(dev);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
kfree(dev);
|
|
|
|
return retval;
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2008-01-05 12:59:03 +00:00
|
|
|
#if defined(CONFIG_MODULES) && defined(MODULE)
|
|
|
|
static void request_module_async(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct em28xx *dev = container_of(work,
|
|
|
|
struct em28xx, request_module_wk);
|
|
|
|
|
2008-01-06 12:54:17 +00:00
|
|
|
if (dev->has_audio_class)
|
|
|
|
request_module("snd-usb-audio");
|
|
|
|
else
|
2008-01-05 12:59:03 +00:00
|
|
|
request_module("em28xx-alsa");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void request_modules(struct em28xx *dev)
|
|
|
|
{
|
|
|
|
INIT_WORK(&dev->request_module_wk, request_module_async);
|
|
|
|
schedule_work(&dev->request_module_wk);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
#define request_modules(dev)
|
|
|
|
#endif /* CONFIG_MODULES */
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/*
|
2005-11-09 05:38:27 +00:00
|
|
|
* em28xx_usb_probe()
|
2005-11-09 05:37:07 +00:00
|
|
|
* checks for supported devices
|
|
|
|
*/
|
2005-11-09 05:38:27 +00:00
|
|
|
static int em28xx_usb_probe(struct usb_interface *interface,
|
2005-11-09 05:37:07 +00:00
|
|
|
const struct usb_device_id *id)
|
|
|
|
{
|
|
|
|
const struct usb_endpoint_descriptor *endpoint;
|
|
|
|
struct usb_device *udev;
|
2005-11-09 05:38:52 +00:00
|
|
|
struct usb_interface *uif;
|
2005-11-09 05:38:27 +00:00
|
|
|
struct em28xx *dev = NULL;
|
2005-11-09 05:37:07 +00:00
|
|
|
int retval = -ENODEV;
|
2007-11-04 00:20:59 +00:00
|
|
|
int i, nr, ifnum;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
udev = usb_get_dev(interface_to_usbdev(interface));
|
2005-11-09 05:37:32 +00:00
|
|
|
ifnum = interface->altsetting[0].desc.bInterfaceNumber;
|
|
|
|
|
2006-01-23 19:11:08 +00:00
|
|
|
/* Check to see next free device and mark as used */
|
|
|
|
nr=find_first_zero_bit(&em28xx_devused,EM28XX_MAXBOARDS);
|
|
|
|
em28xx_devused|=1<<nr;
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2005-11-09 05:37:24 +00:00
|
|
|
/* Don't register audio interfaces */
|
2005-11-09 05:38:13 +00:00
|
|
|
if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n",
|
2005-11-09 05:38:13 +00:00
|
|
|
udev->descriptor.idVendor,udev->descriptor.idProduct,
|
|
|
|
ifnum,
|
|
|
|
interface->altsetting[0].desc.bInterfaceClass);
|
2006-01-23 19:11:08 +00:00
|
|
|
|
|
|
|
em28xx_devused&=~(1<<nr);
|
2005-11-09 05:37:24 +00:00
|
|
|
return -ENODEV;
|
2005-11-09 05:38:13 +00:00
|
|
|
}
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n",
|
2005-11-09 05:38:13 +00:00
|
|
|
udev->descriptor.idVendor,udev->descriptor.idProduct,
|
|
|
|
ifnum,
|
|
|
|
interface->altsetting[0].desc.bInterfaceClass);
|
2005-11-09 05:37:24 +00:00
|
|
|
|
2005-11-09 05:37:32 +00:00
|
|
|
endpoint = &interface->cur_altsetting->endpoint[1].desc;
|
|
|
|
|
2007-05-09 06:57:56 +00:00
|
|
|
/* check if the device has the iso in endpoint at the correct place */
|
2005-11-09 05:37:07 +00:00
|
|
|
if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
|
|
|
|
USB_ENDPOINT_XFER_ISOC) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n");
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_devused&=~(1<<nr);
|
2005-11-09 05:37:07 +00:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n");
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_devused&=~(1<<nr);
|
2005-11-09 05:37:07 +00:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2006-03-14 20:24:57 +00:00
|
|
|
if (nr >= EM28XX_MAXBOARDS) {
|
2005-11-09 05:38:52 +00:00
|
|
|
printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS);
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_devused&=~(1<<nr);
|
2005-11-09 05:37:24 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* allocate memory for our device state and initialize it */
|
2006-01-11 21:40:56 +00:00
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
2005-11-09 05:37:24 +00:00
|
|
|
if (dev == NULL) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME ": out of memory!\n");
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_devused&=~(1<<nr);
|
2005-11-09 05:37:24 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2006-01-23 19:11:08 +00:00
|
|
|
snprintf(dev->name, 29, "em28xx #%d", nr);
|
2007-11-04 00:20:59 +00:00
|
|
|
dev->devno = nr;
|
|
|
|
dev->model = id->driver_info;
|
2006-01-23 19:11:08 +00:00
|
|
|
|
2008-01-05 12:59:03 +00:00
|
|
|
/* Checks if audio is provided by some interface */
|
|
|
|
for (i = 0; i < udev->config->desc.bNumInterfaces; i++) {
|
|
|
|
uif = udev->config->interface[i];
|
|
|
|
if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
|
|
|
|
dev->has_audio_class = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
printk(KERN_INFO DRIVER_NAME " %s usb audio class\n",
|
|
|
|
dev->has_audio_class ? "Has" : "Doesn't have");
|
|
|
|
|
2005-11-09 05:38:52 +00:00
|
|
|
/* compute alternate max packet sizes */
|
|
|
|
uif = udev->actconfig->interface[0];
|
|
|
|
|
|
|
|
dev->num_alt=uif->num_altsetting;
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_info("Alternate settings: %i\n",dev->num_alt);
|
2005-11-09 05:38:52 +00:00
|
|
|
// dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)*
|
|
|
|
dev->alt_max_pkt_size = kmalloc(32*
|
|
|
|
dev->num_alt,GFP_KERNEL);
|
|
|
|
if (dev->alt_max_pkt_size == NULL) {
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_errdev("out of memory!\n");
|
|
|
|
em28xx_devused&=~(1<<nr);
|
2007-08-09 21:02:36 +00:00
|
|
|
kfree(dev);
|
2005-11-09 05:38:52 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < dev->num_alt ; i++) {
|
|
|
|
u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
|
|
|
|
wMaxPacketSize);
|
|
|
|
dev->alt_max_pkt_size[i] =
|
|
|
|
(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
|
2006-01-23 19:11:08 +00:00
|
|
|
em28xx_info("Alternate setting %i, max size= %i\n",i,
|
2005-11-09 05:38:52 +00:00
|
|
|
dev->alt_max_pkt_size[i]);
|
|
|
|
}
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
if ((card[nr]>=0)&&(card[nr]<em28xx_bcount))
|
2007-11-04 00:20:59 +00:00
|
|
|
dev->model = card[nr];
|
2005-11-09 05:37:24 +00:00
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
/* allocate device struct */
|
2007-11-04 00:20:59 +00:00
|
|
|
retval = em28xx_init_dev(&dev, udev, nr);
|
2005-11-09 05:37:07 +00:00
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
2007-11-04 00:20:59 +00:00
|
|
|
em28xx_info("Found %s\n", em28xx_boards[dev->model].name);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
/* save our data pointer in this interface device */
|
|
|
|
usb_set_intfdata(interface, dev);
|
2008-01-05 12:59:03 +00:00
|
|
|
|
|
|
|
request_modules(dev);
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2005-11-09 05:38:27 +00:00
|
|
|
* em28xx_usb_disconnect()
|
2005-11-09 05:37:07 +00:00
|
|
|
* called when the device gets diconencted
|
|
|
|
* video device will be unregistered on v4l2_close in case it is still open
|
|
|
|
*/
|
2005-11-09 05:38:27 +00:00
|
|
|
static void em28xx_usb_disconnect(struct usb_interface *interface)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
2007-11-04 00:22:38 +00:00
|
|
|
struct em28xx *dev;
|
2008-01-05 12:57:31 +00:00
|
|
|
struct em28xx_ops *ops = NULL;
|
2007-11-04 00:22:38 +00:00
|
|
|
|
|
|
|
dev = usb_get_intfdata(interface);
|
2005-11-09 05:37:07 +00:00
|
|
|
usb_set_intfdata(interface, NULL);
|
|
|
|
|
|
|
|
if (!dev)
|
|
|
|
return;
|
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
em28xx_info("disconnecting %s\n", dev->vdev->name);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2007-11-04 00:22:38 +00:00
|
|
|
/* wait until all current v4l2 io is finished then deallocate resources */
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_lock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
|
|
|
wake_up_interruptible_all(&dev->open);
|
|
|
|
|
|
|
|
if (dev->users) {
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_warn
|
2005-11-09 05:37:07 +00:00
|
|
|
("device /dev/video%d is open! Deregistration and memory "
|
2006-01-23 19:11:08 +00:00
|
|
|
"deallocation are deferred on close.\n",
|
|
|
|
dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN);
|
|
|
|
|
2005-11-09 05:37:07 +00:00
|
|
|
dev->state |= DEV_MISCONFIGURED;
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_uninit_isoc(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
dev->state |= DEV_DISCONNECTED;
|
|
|
|
wake_up_interruptible(&dev->wait_frame);
|
|
|
|
wake_up_interruptible(&dev->wait_stream);
|
|
|
|
} else {
|
|
|
|
dev->state |= DEV_DISCONNECTED;
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_release_resources(dev);
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
2006-02-07 08:49:14 +00:00
|
|
|
mutex_unlock(&dev->lock);
|
2005-11-09 05:37:07 +00:00
|
|
|
|
2008-01-05 12:57:31 +00:00
|
|
|
mutex_lock(&em28xx_extension_devlist_lock);
|
|
|
|
if (!list_empty(&em28xx_extension_devlist)) {
|
|
|
|
list_for_each_entry(ops, &em28xx_extension_devlist, next) {
|
|
|
|
ops->fini(dev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
mutex_unlock(&em28xx_extension_devlist_lock);
|
|
|
|
|
2005-11-09 05:38:52 +00:00
|
|
|
if (!dev->users) {
|
|
|
|
kfree(dev->alt_max_pkt_size);
|
2005-11-09 05:37:07 +00:00
|
|
|
kfree(dev);
|
2005-11-09 05:38:52 +00:00
|
|
|
}
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
static struct usb_driver em28xx_usb_driver = {
|
|
|
|
.name = "em28xx",
|
|
|
|
.probe = em28xx_usb_probe,
|
|
|
|
.disconnect = em28xx_usb_disconnect,
|
|
|
|
.id_table = em28xx_id_table,
|
2005-11-09 05:37:07 +00:00
|
|
|
};
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
static int __init em28xx_module_init(void)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
|
|
|
int result;
|
|
|
|
|
|
|
|
printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n",
|
2005-11-09 05:38:27 +00:00
|
|
|
(EM28XX_VERSION_CODE >> 16) & 0xff,
|
|
|
|
(EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff);
|
2005-11-09 05:37:07 +00:00
|
|
|
#ifdef SNAPSHOT
|
|
|
|
printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n",
|
|
|
|
SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* register this driver with the USB subsystem */
|
2005-11-09 05:38:27 +00:00
|
|
|
result = usb_register(&em28xx_usb_driver);
|
2005-11-09 05:37:07 +00:00
|
|
|
if (result)
|
2005-11-09 05:38:27 +00:00
|
|
|
em28xx_err(DRIVER_NAME
|
2005-11-09 05:37:07 +00:00
|
|
|
" usb_register failed. Error number %d.\n", result);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
static void __exit em28xx_module_exit(void)
|
2005-11-09 05:37:07 +00:00
|
|
|
{
|
|
|
|
/* deregister this driver with the USB subsystem */
|
2005-11-09 05:38:27 +00:00
|
|
|
usb_deregister(&em28xx_usb_driver);
|
2005-11-09 05:37:07 +00:00
|
|
|
}
|
|
|
|
|
2005-11-09 05:38:27 +00:00
|
|
|
module_init(em28xx_module_init);
|
|
|
|
module_exit(em28xx_module_exit);
|