[media] em28xx: make em28xx-video to be a separate module
Now that all analog-specific code are at em28xx-video, convert it into an em28xx extension and load it as a separate module. Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com> Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mauro Carvalho Chehab
Родитель
1f0ee65a3b
Коммит
01c2819330
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@ -1,8 +1,12 @@
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config VIDEO_EM28XX
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tristate "Empia EM28xx USB video capture support"
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tristate "Empia EM28xx USB devices support"
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depends on VIDEO_DEV && I2C
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select VIDEO_TUNER
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select VIDEO_TVEEPROM
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config VIDEO_EM28XX_V4L2
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tristate "Empia EM28xx analog TV, video capture and/or webcam support"
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depends on VIDEO_EM28XX
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select VIDEOBUF2_VMALLOC
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select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
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select VIDEO_TVP5150 if MEDIA_SUBDRV_AUTOSELECT
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@ -1,10 +1,11 @@
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em28xx-y += em28xx-video.o em28xx-i2c.o em28xx-cards.o
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em28xx-y += em28xx-core.o em28xx-vbi.o em28xx-camera.o
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em28xx-y += em28xx-core.o em28xx-i2c.o em28xx-cards.o em28xx-camera.o
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em28xx-v4l-objs := em28xx-video.o em28xx-vbi.o
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em28xx-alsa-objs := em28xx-audio.o
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em28xx-rc-objs := em28xx-input.o
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obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o
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obj-$(CONFIG_VIDEO_EM28XX_V4L2) += em28xx-v4l.o
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obj-$(CONFIG_VIDEO_EM28XX_ALSA) += em28xx-alsa.o
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obj-$(CONFIG_VIDEO_EM28XX_DVB) += em28xx-dvb.o
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obj-$(CONFIG_VIDEO_EM28XX_RC) += em28xx-rc.o
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@ -454,3 +454,4 @@ int em28xx_init_camera(struct em28xx *dev)
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return ret;
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}
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EXPORT_SYMBOL_GPL(em28xx_init_camera);
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@ -2159,6 +2159,8 @@ struct em28xx_board em28xx_boards[] = {
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.ir_codes = RC_MAP_PINNACLE_PCTV_HD,
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},
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};
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EXPORT_SYMBOL_GPL(em28xx_boards);
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const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
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/* table of devices that work with this driver */
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@ -2780,11 +2782,12 @@ static void request_module_async(struct work_struct *work)
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em28xx_init_extension(dev);
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#if defined(CONFIG_MODULES) && defined(MODULE)
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if (dev->has_video)
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request_module("em28xx-v4l");
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if (dev->has_audio_class)
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request_module("snd-usb-audio");
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else if (dev->has_alsa_audio)
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request_module("em28xx-alsa");
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if (dev->board.has_dvb)
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request_module("em28xx-dvb");
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if (dev->board.buttons ||
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@ -2813,18 +2816,12 @@ void em28xx_release_resources(struct em28xx *dev)
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{
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/*FIXME: I2C IR should be disconnected */
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em28xx_release_analog_resources(dev);
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if (dev->def_i2c_bus)
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em28xx_i2c_unregister(dev, 1);
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em28xx_i2c_unregister(dev, 0);
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if (dev->clk)
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v4l2_clk_unregister_fixed(dev->clk);
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v4l2_ctrl_handler_free(&dev->ctrl_handler);
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v4l2_device_unregister(&dev->v4l2_dev);
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usb_put_dev(dev->udev);
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/* Mark device as unused */
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@ -2999,18 +2996,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
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/* Do board specific init and eeprom reading */
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em28xx_card_setup(dev);
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retval = em28xx_register_analog_devices(dev);
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if (retval < 0)
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goto fail;
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return 0;
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fail:
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if (dev->def_i2c_bus)
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em28xx_i2c_unregister(dev, 1);
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em28xx_i2c_unregister(dev, 0);
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return retval;
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}
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/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
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@ -3213,6 +3199,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
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dev->alt = -1;
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dev->is_audio_only = has_audio && !(has_video || has_dvb);
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dev->has_alsa_audio = has_audio;
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dev->has_video = has_video;
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dev->audio_ifnum = ifnum;
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/* Checks if audio is provided by some interface */
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@ -3252,10 +3239,9 @@ static int em28xx_usb_probe(struct usb_interface *interface,
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/* allocate device struct */
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mutex_init(&dev->lock);
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mutex_lock(&dev->lock);
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retval = em28xx_init_dev(dev, udev, interface, nr);
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if (retval) {
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goto unlock_and_free;
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goto err_free;
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}
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if (usb_xfer_mode < 0) {
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@ -3298,7 +3284,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
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if (retval) {
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printk(DRIVER_NAME
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": Failed to pre-allocate USB transfer buffers for DVB.\n");
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goto unlock_and_free;
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goto err_free;
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}
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}
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@ -3307,13 +3293,9 @@ static int em28xx_usb_probe(struct usb_interface *interface,
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/* Should be the last thing to do, to avoid newer udev's to
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open the device before fully initializing it
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*/
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mutex_unlock(&dev->lock);
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return 0;
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unlock_and_free:
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mutex_unlock(&dev->lock);
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err_free:
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kfree(dev->alt_max_pkt_size_isoc);
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kfree(dev);
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@ -33,6 +33,18 @@
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#include "em28xx.h"
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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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"Mauro Carvalho Chehab <mchehab@infradead.org>, " \
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"Sascha Sommer <saschasommer@freenet.de>"
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#define DRIVER_DESC "Empia em28xx based USB core driver"
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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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MODULE_VERSION(EM28XX_VERSION);
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/* #define ENABLE_DEBUG_ISOC_FRAMES */
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static unsigned int core_debug;
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@ -0,0 +1,20 @@
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/*
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em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB
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video capture devices
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Copyright (C) 2013-2014 Mauro Carvalho Chehab <m.chehab@samsung.com>
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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 version 2 of the License.
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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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*/
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int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
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int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
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extern struct vb2_ops em28xx_vbi_qops;
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@ -27,6 +27,7 @@
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#include <linux/init.h>
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#include "em28xx.h"
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#include "em28xx-v4l.h"
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static unsigned int vbibufs = 5;
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module_param(vbibufs, int, 0644);
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@ -38,6 +38,7 @@
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#include <linux/slab.h>
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#include "em28xx.h"
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#include "em28xx-v4l.h"
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-event.h>
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@ -141,7 +142,7 @@ static struct em28xx_fmt format[] = {
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},
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};
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int em28xx_vbi_supported(struct em28xx *dev)
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static int em28xx_vbi_supported(struct em28xx *dev)
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{
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/* Modprobe option to manually disable */
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if (disable_vbi == 1)
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@ -164,7 +165,7 @@ int em28xx_vbi_supported(struct em28xx *dev)
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* em28xx_wake_i2c()
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* configure i2c attached devices
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*/
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void em28xx_wake_i2c(struct em28xx *dev)
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static void em28xx_wake_i2c(struct em28xx *dev)
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{
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v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
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v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
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@ -172,7 +173,7 @@ void em28xx_wake_i2c(struct em28xx *dev)
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v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
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}
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int em28xx_colorlevels_set_default(struct em28xx *dev)
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static int em28xx_colorlevels_set_default(struct em28xx *dev)
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{
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em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
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em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
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@ -190,7 +191,7 @@ int em28xx_colorlevels_set_default(struct em28xx *dev)
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return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
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}
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int em28xx_set_outfmt(struct em28xx *dev)
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static int em28xx_set_outfmt(struct em28xx *dev)
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{
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int ret;
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u8 fmt, vinctrl;
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@ -297,7 +298,7 @@ static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
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}
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/* FIXME: this only function read values from dev */
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int em28xx_resolution_set(struct em28xx *dev)
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static int em28xx_resolution_set(struct em28xx *dev)
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{
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int width, height;
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width = norm_maxw(dev);
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@ -330,7 +331,7 @@ int em28xx_resolution_set(struct em28xx *dev)
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}
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/* Set USB alternate setting for analog video */
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int em28xx_set_alternate(struct em28xx *dev)
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static int em28xx_set_alternate(struct em28xx *dev)
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{
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int errCode;
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int i;
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@ -1020,7 +1021,7 @@ static struct vb2_ops em28xx_video_qops = {
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.wait_finish = vb2_ops_wait_finish,
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};
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int em28xx_vb2_setup(struct em28xx *dev)
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static int em28xx_vb2_setup(struct em28xx *dev)
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{
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int rc;
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struct vb2_queue *q;
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@ -1088,7 +1089,7 @@ static void video_mux(struct em28xx *dev, int index)
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em28xx_audio_analog_set(dev);
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}
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void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
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static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
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{
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struct em28xx *dev = priv;
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@ -1625,7 +1626,7 @@ static int vidioc_g_register(struct file *file, void *priv,
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reg->val = ret;
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} else {
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__le16 val = 0;
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ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
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ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
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reg->reg, (char *)&val, 2);
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if (ret < 0)
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return ret;
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@ -1872,14 +1873,16 @@ static int em28xx_v4l2_open(struct file *filp)
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}
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/*
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* em28xx_realease_resources()
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* em28xx_v4l2_fini()
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* unregisters the v4l2,i2c and usb devices
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* called when the device gets disconected or at module unload
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*/
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void em28xx_release_analog_resources(struct em28xx *dev)
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static int em28xx_v4l2_fini(struct em28xx *dev)
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{
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/*FIXME: I2C IR should be disconnected */
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if (!dev->has_video) {
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/* This device does not support the v4l2 extension */
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return 0;
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}
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if (dev->radio_dev) {
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if (video_is_registered(dev->radio_dev))
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@ -1906,6 +1909,8 @@ void em28xx_release_analog_resources(struct em28xx *dev)
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video_device_release(dev->vdev);
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dev->vdev = NULL;
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}
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return 0;
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}
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/*
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@ -1927,12 +1932,13 @@ static int em28xx_v4l2_close(struct file *filp)
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if (dev->users == 1) {
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/* the device is already disconnect,
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free the remaining resources */
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if (dev->disconnected) {
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em28xx_release_resources(dev);
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v4l2_ctrl_handler_free(&dev->ctrl_handler);
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v4l2_device_unregister(&dev->v4l2_dev);
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kfree(dev->alt_max_pkt_size_isoc);
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mutex_unlock(&dev->lock);
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kfree(dev);
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return 0;
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goto exit;
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}
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/* Save some power by putting tuner to sleep */
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@ -1951,6 +1957,7 @@ static int em28xx_v4l2_close(struct file *filp)
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}
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}
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exit:
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dev->users--;
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mutex_unlock(&dev->lock);
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return 0;
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@ -2065,8 +2072,6 @@ static unsigned short msp3400_addrs[] = {
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|
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/******************************** usb interface ******************************/
|
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|
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|
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|
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static struct video_device *em28xx_vdev_init(struct em28xx *dev,
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const struct video_device *template,
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const char *type_name)
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|
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@ -2140,7 +2145,7 @@ static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
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}
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}
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|
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void em28xx_tuner_setup(struct em28xx *dev)
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static void em28xx_tuner_setup(struct em28xx *dev)
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{
|
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struct tuner_setup tun_setup;
|
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struct v4l2_frequency f;
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|
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@ -2199,14 +2204,14 @@ void em28xx_tuner_setup(struct em28xx *dev)
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v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
|
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}
|
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|
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int em28xx_register_analog_devices(struct em28xx *dev)
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static int em28xx_v4l2_init(struct em28xx *dev)
|
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{
|
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u8 val;
|
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int ret;
|
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unsigned int maxw;
|
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struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
|
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|
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if (dev->is_audio_only) {
|
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if (!dev->has_video) {
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/* This device does not support the v4l2 extension */
|
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return 0;
|
||||
}
|
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|
|
@ -2214,6 +2219,8 @@ int em28xx_register_analog_devices(struct em28xx *dev)
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printk(KERN_INFO "%s: v4l2 driver version %s\n",
|
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dev->name, EM28XX_VERSION);
|
||||
|
||||
mutex_lock(&dev->lock);
|
||||
|
||||
ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev);
|
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if (ret < 0) {
|
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em28xx_errdev("Call to v4l2_device_register() failed!\n");
|
||||
|
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@ -2492,11 +2499,33 @@ int em28xx_register_analog_devices(struct em28xx *dev)
|
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/* initialize videobuf2 stuff */
|
||||
em28xx_vb2_setup(dev);
|
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|
||||
mutex_unlock(&dev->lock);
|
||||
return 0;
|
||||
|
||||
unregister_dev:
|
||||
v4l2_ctrl_handler_free(&dev->ctrl_handler);
|
||||
v4l2_device_unregister(&dev->v4l2_dev);
|
||||
err:
|
||||
mutex_unlock(&dev->lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct em28xx_ops v4l2_ops = {
|
||||
.id = EM28XX_V4L2,
|
||||
.name = "Em28xx v4l2 Extension",
|
||||
.init = em28xx_v4l2_init,
|
||||
.fini = em28xx_v4l2_fini,
|
||||
};
|
||||
|
||||
static int __init em28xx_video_register(void)
|
||||
{
|
||||
return em28xx_register_extension(&v4l2_ops);
|
||||
}
|
||||
|
||||
static void __exit em28xx_video_unregister(void)
|
||||
{
|
||||
em28xx_unregister_extension(&v4l2_ops);
|
||||
}
|
||||
|
||||
module_init(em28xx_video_register);
|
||||
module_exit(em28xx_video_unregister);
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@
|
|||
#ifndef _EM28XX_H
|
||||
#define _EM28XX_H
|
||||
|
||||
#define EM28XX_VERSION "0.2.0"
|
||||
#define EM28XX_VERSION "0.2.1"
|
||||
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/i2c.h>
|
||||
|
|
@ -474,6 +474,7 @@ struct em28xx_eeprom {
|
|||
#define EM28XX_AUDIO 0x10
|
||||
#define EM28XX_DVB 0x20
|
||||
#define EM28XX_RC 0x30
|
||||
#define EM28XX_V4L2 0x40
|
||||
|
||||
/* em28xx resource types (used for res_get/res_lock etc */
|
||||
#define EM28XX_RESOURCE_VIDEO 0x01
|
||||
|
|
@ -527,6 +528,7 @@ struct em28xx {
|
|||
|
||||
unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */
|
||||
unsigned char disconnected:1; /* device has been diconnected */
|
||||
unsigned int has_video:1;
|
||||
unsigned int has_audio_class:1;
|
||||
unsigned int has_alsa_audio:1;
|
||||
unsigned int is_audio_only:1;
|
||||
|
|
@ -723,14 +725,9 @@ int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
|
|||
int em28xx_audio_analog_set(struct em28xx *dev);
|
||||
int em28xx_audio_setup(struct em28xx *dev);
|
||||
|
||||
int em28xx_colorlevels_set_default(struct em28xx *dev);
|
||||
const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
|
||||
enum em28xx_led_role role);
|
||||
int em28xx_capture_start(struct em28xx *dev, int start);
|
||||
int em28xx_vbi_supported(struct em28xx *dev);
|
||||
int em28xx_set_outfmt(struct em28xx *dev);
|
||||
int em28xx_resolution_set(struct em28xx *dev);
|
||||
int em28xx_set_alternate(struct em28xx *dev);
|
||||
int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
|
||||
int num_bufs, int max_pkt_size, int packet_multiplier);
|
||||
int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
|
||||
|
|
@ -742,31 +739,17 @@ void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
|
|||
void em28xx_stop_urbs(struct em28xx *dev);
|
||||
int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
|
||||
int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
|
||||
void em28xx_wake_i2c(struct em28xx *dev);
|
||||
int em28xx_register_extension(struct em28xx_ops *dev);
|
||||
void em28xx_unregister_extension(struct em28xx_ops *dev);
|
||||
void em28xx_init_extension(struct em28xx *dev);
|
||||
void em28xx_close_extension(struct em28xx *dev);
|
||||
|
||||
/* Provided by em28xx-video.c */
|
||||
void em28xx_tuner_setup(struct em28xx *dev);
|
||||
int em28xx_vb2_setup(struct em28xx *dev);
|
||||
int em28xx_register_analog_devices(struct em28xx *dev);
|
||||
void em28xx_release_analog_resources(struct em28xx *dev);
|
||||
void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv);
|
||||
int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
|
||||
int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
|
||||
extern const struct v4l2_ctrl_ops em28xx_ctrl_ops;
|
||||
|
||||
/* Provided by em28xx-cards.c */
|
||||
extern struct em28xx_board em28xx_boards[];
|
||||
extern struct usb_device_id em28xx_id_table[];
|
||||
int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
|
||||
void em28xx_release_resources(struct em28xx *dev);
|
||||
|
||||
/* Provided by em28xx-vbi.c */
|
||||
extern struct vb2_ops em28xx_vbi_qops;
|
||||
|
||||
/* Provided by em28xx-camera.c */
|
||||
int em28xx_detect_sensor(struct em28xx *dev);
|
||||
int em28xx_init_camera(struct em28xx *dev);
|
||||
|
|
|
|||
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