Am 04.01.2014 11:55, schrieb Mauro Carvalho Chehab:
> Now that all analog-specific code are at em28xx-video, convert
> it into an em28xx extension and load it as a separate module.
>
> Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
> ---
> drivers/media/usb/em28xx/Kconfig | 6 ++-
> drivers/media/usb/em28xx/Makefile | 5 ++-
> drivers/media/usb/em28xx/em28xx-camera.c | 1 +
> drivers/media/usb/em28xx/em28xx-cards.c | 45 ++++---------------
> drivers/media/usb/em28xx/em28xx-core.c | 12 ++++++
> drivers/media/usb/em28xx/em28xx-v4l.h | 20 +++++++++
> drivers/media/usb/em28xx/em28xx-vbi.c | 1 +
> drivers/media/usb/em28xx/em28xx-video.c | 74 +++++++++++++++++++++++---------
> drivers/media/usb/em28xx/em28xx.h | 23 ++--------
> 9 files changed, 107 insertions(+), 80 deletions(-)
> create mode 100644 drivers/media/usb/em28xx/em28xx-v4l.h
>
> diff --git a/drivers/media/usb/em28xx/Kconfig b/drivers/media/usb/em28xx/Kconfig
> index d6ba514d31eb..838fc9dbb747 100644
> --- a/drivers/media/usb/em28xx/Kconfig
> +++ b/drivers/media/usb/em28xx/Kconfig
> @@ -1,8 +1,12 @@
> config VIDEO_EM28XX
> - tristate "Empia EM28xx USB video capture support"
> + tristate "Empia EM28xx USB devices support"
> depends on VIDEO_DEV && I2C
> select VIDEO_TUNER
> select VIDEO_TVEEPROM
> +
> +config VIDEO_EM28XX_V4L2
> + tristate "Empia EM28xx analog TV, video capture and/or webcam support"
> + depends on VIDEO_EM28XX && I2C
VIDEO_EM28XX already depends on I2C.
> select VIDEOBUF2_VMALLOC
> select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
> select VIDEO_TVP5150 if MEDIA_SUBDRV_AUTOSELECT
> diff --git a/drivers/media/usb/em28xx/Makefile b/drivers/media/usb/em28xx/Makefile
> index ad6d48557940..3f850d5063d0 100644
> --- a/drivers/media/usb/em28xx/Makefile
> +++ b/drivers/media/usb/em28xx/Makefile
> @@ -1,10 +1,11 @@
> -em28xx-y += em28xx-video.o em28xx-i2c.o em28xx-cards.o
> -em28xx-y += em28xx-core.o em28xx-vbi.o em28xx-camera.o
> +em28xx-y += em28xx-core.o em28xx-i2c.o em28xx-cards.o em28xx-camera.o
>
> +em28xx-v4l-objs := em28xx-video.o em28xx-vbi.o
> em28xx-alsa-objs := em28xx-audio.o
> em28xx-rc-objs := em28xx-input.o
>
> obj-$(CONFIG_VIDEO_EM28XX) += em28xx.o
> +obj-$(CONFIG_VIDEO_EM28XX_V4L2) += em28xx-v4l.o
> obj-$(CONFIG_VIDEO_EM28XX_ALSA) += em28xx-alsa.o
> obj-$(CONFIG_VIDEO_EM28XX_DVB) += em28xx-dvb.o
> obj-$(CONFIG_VIDEO_EM28XX_RC) += em28xx-rc.o
> diff --git a/drivers/media/usb/em28xx/em28xx-camera.c b/drivers/media/usb/em28xx/em28xx-camera.c
> index d666741797d4..c29f5c4e7b40 100644
> --- a/drivers/media/usb/em28xx/em28xx-camera.c
> +++ b/drivers/media/usb/em28xx/em28xx-camera.c
> @@ -454,3 +454,4 @@ int em28xx_init_camera(struct em28xx *dev)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(em28xx_init_camera);
em28xx-camera should also be part of the em28xx-v4l module.
> diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
> index 175cd776e0a1..938daaabd8e0 100644
> --- a/drivers/media/usb/em28xx/em28xx-cards.c
> +++ b/drivers/media/usb/em28xx/em28xx-cards.c
> @@ -2159,6 +2159,8 @@ struct em28xx_board em28xx_boards[] = {
> .ir_codes = RC_MAP_PINNACLE_PCTV_HD,
> },
> };
> +EXPORT_SYMBOL_GPL(em28xx_boards);
> +
> const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
>
> /* table of devices that work with this driver */
> @@ -2827,10 +2829,6 @@ static void em28xx_card_setup(struct em28xx *dev)
> "tuner", dev->tuner_addr, NULL);
> }
> }
> -
> - em28xx_tuner_setup(dev);
> -
> - em28xx_init_camera(dev);
> }
Here you are fixing half of the em28xx_card_setup() oopses which you've
introduced with patch 3/22.
This needs to be done together with patch 5/22 before patch 3/22.
> @@ -2848,11 +2846,12 @@ static void request_module_async(struct work_struct *work)
> em28xx_init_extension(dev);
>
> #if defined(CONFIG_MODULES) && defined(MODULE)
> + if (dev->has_video)
> + request_module("em28xx-v4l");
> if (dev->has_audio_class)
> request_module("snd-usb-audio");
> else if (dev->has_alsa_audio)
> request_module("em28xx-alsa");
> -
> if (dev->board.has_dvb)
> request_module("em28xx-dvb");
> if (dev->board.buttons ||
> @@ -2881,18 +2880,12 @@ void em28xx_release_resources(struct em28xx *dev)
> {
> /*FIXME: I2C IR should be disconnected */
>
> - em28xx_release_analog_resources(dev);
> -
> if (dev->def_i2c_bus)
> em28xx_i2c_unregister(dev, 1);
> em28xx_i2c_unregister(dev, 0);
> if (dev->clk)
> v4l2_clk_unregister_fixed(dev->clk);
>
> - v4l2_ctrl_handler_free(&dev->ctrl_handler);
> -
> - v4l2_device_unregister(&dev->v4l2_dev);
> -
> usb_put_dev(dev->udev);
>
> /* Mark device as unused */
> @@ -3043,7 +3036,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
> if (retval < 0) {
> em28xx_errdev("%s: em28xx_i2c_register bus 0 - error [%d]!\n",
> __func__, retval);
> - goto unregister_dev;
> + return retval;
> }
>
> /* register i2c bus 1 */
> @@ -3057,30 +3050,14 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
> if (retval < 0) {
> em28xx_errdev("%s: em28xx_i2c_register bus 1 - error [%d]!\n",
> __func__, retval);
> - goto unregister_dev;
> + return retval;
> }
> }
Hmm... if registering of bus 1 fails, we need to unregister bus 0.
But that's an old bug which we can fix later...
> /* Do board specific init and eeprom reading */
> em28xx_card_setup(dev);
>
> - retval = em28xx_register_analog_devices(dev);
> - if (retval < 0) {
> - goto fail;
> - }
> -
> return 0;
> -
> -fail:
> - if (dev->def_i2c_bus)
> - em28xx_i2c_unregister(dev, 1);
> - em28xx_i2c_unregister(dev, 0);
> - v4l2_ctrl_handler_free(&dev->ctrl_handler);
> -
> -unregister_dev:
> - v4l2_device_unregister(&dev->v4l2_dev);
> -
> - return retval;
> }
>
> /* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
> @@ -3283,6 +3260,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
> dev->alt = -1;
> dev->is_audio_only = has_audio && !(has_video || has_dvb);
> dev->has_alsa_audio = has_audio;
> + dev->has_video = has_video;
> dev->audio_ifnum = ifnum;
>
> /* Checks if audio is provided by some interface */
> @@ -3322,10 +3300,9 @@ static int em28xx_usb_probe(struct usb_interface *interface,
>
> /* allocate device struct */
> mutex_init(&dev->lock);
> - mutex_lock(&dev->lock);
> retval = em28xx_init_dev(dev, udev, interface, nr);
> if (retval) {
> - goto unlock_and_free;
> + goto err_free;
> }
>
> if (usb_xfer_mode < 0) {
> @@ -3368,7 +3345,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
> if (retval) {
> printk(DRIVER_NAME
> ": Failed to pre-allocate USB transfer buffers for DVB.\n");
> - goto unlock_and_free;
> + goto err_free;
> }
> }
>
> @@ -3377,13 +3354,9 @@ static int em28xx_usb_probe(struct usb_interface *interface,
> /* Should be the last thing to do, to avoid newer udev's to
> open the device before fully initializing it
> */
> - mutex_unlock(&dev->lock);
>
> return 0;
>
> -unlock_and_free:
> - mutex_unlock(&dev->lock);
> -
> err_free:
> kfree(dev->alt_max_pkt_size_isoc);
> kfree(dev);
> diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
> index 3012912d2997..1113d4e107d8 100644
> --- a/drivers/media/usb/em28xx/em28xx-core.c
> +++ b/drivers/media/usb/em28xx/em28xx-core.c
> @@ -33,6 +33,18 @@
>
> #include "em28xx.h"
>
> +#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@xxxxxxxx>, " \
> + "Markus Rechberger <mrechberger@xxxxxxxxx>, " \
> + "Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>, " \
> + "Sascha Sommer <saschasommer@xxxxxxxxxx>"
> +
> +#define DRIVER_DESC "Empia em28xx based USB core driver"
> +
> +MODULE_AUTHOR(DRIVER_AUTHOR);
> +MODULE_DESCRIPTION(DRIVER_DESC);
> +MODULE_LICENSE("GPL");
> +MODULE_VERSION(EM28XX_VERSION);
> +
> /* #define ENABLE_DEBUG_ISOC_FRAMES */
>
> static unsigned int core_debug;
> diff --git a/drivers/media/usb/em28xx/em28xx-v4l.h b/drivers/media/usb/em28xx/em28xx-v4l.h
> new file mode 100644
> index 000000000000..bce438691e0e
> --- /dev/null
> +++ b/drivers/media/usb/em28xx/em28xx-v4l.h
> @@ -0,0 +1,20 @@
> +/*
> + em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB
> + video capture devices
The information about supported chips is outdated everywhere in the driver,
but if you introduce a new header file it should really be up to date.
Just talk about EM27xx/EM28xx.
> +
> + Copyright (C) 2013-2014 Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
> +
> + This program is free software; you can redistribute it and/or modify
> + it under the terms of the GNU General Public License as published by
> + the Free Software Foundation version 2 of the License.
> +
> + This program is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + GNU General Public License for more details.
> + */
> +
> +
> +int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
> +int em28xx_stop_vbi_streaming(struct vb2_queue *vq);
> +extern struct vb2_ops em28xx_vbi_qops;
> diff --git a/drivers/media/usb/em28xx/em28xx-vbi.c b/drivers/media/usb/em28xx/em28xx-vbi.c
> index 39f39c527c13..db3d655600df 100644
> --- a/drivers/media/usb/em28xx/em28xx-vbi.c
> +++ b/drivers/media/usb/em28xx/em28xx-vbi.c
> @@ -27,6 +27,7 @@
> #include <linux/init.h>
>
> #include "em28xx.h"
> +#include "em28xx-v4l.h"
>
> static unsigned int vbibufs = 5;
> module_param(vbibufs, int, 0644);
> diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
> index 85284626dbd6..d615bff8ac09 100644
> --- a/drivers/media/usb/em28xx/em28xx-video.c
> +++ b/drivers/media/usb/em28xx/em28xx-video.c
> @@ -38,6 +38,7 @@
> #include <linux/slab.h>
>
> #include "em28xx.h"
> +#include "em28xx-v4l.h"
> #include <media/v4l2-common.h>
> #include <media/v4l2-ioctl.h>
> #include <media/v4l2-event.h>
> @@ -141,11 +142,13 @@ static struct em28xx_fmt format[] = {
> },
> };
>
> +static int em28xx_vbi_supported(struct em28xx *dev);
> +
Or move em28xx_vbi_supported() before em28xx_set_outfmt() and
em28xx_resolution_set() again.
If you had not changed the functions order in patch 1/22, this wouldn't
be necessary.
> /*
> * em28xx_wake_i2c()
> * configure i2c attached devices
> */
> -void em28xx_wake_i2c(struct em28xx *dev)
> +static void em28xx_wake_i2c(struct em28xx *dev)
> {
> v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
> v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
> @@ -153,7 +156,7 @@ void em28xx_wake_i2c(struct em28xx *dev)
> v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
> }
>
> -int em28xx_colorlevels_set_default(struct em28xx *dev)
> +static int em28xx_colorlevels_set_default(struct em28xx *dev)
> {
> em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
> em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
> @@ -171,7 +174,7 @@ int em28xx_colorlevels_set_default(struct em28xx *dev)
> return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
> }
>
> -int em28xx_set_outfmt(struct em28xx *dev)
> +static int em28xx_set_outfmt(struct em28xx *dev)
> {
> int ret;
> u8 fmt, vinctrl;
> @@ -278,7 +281,7 @@ static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
> }
>
> /* FIXME: this only function read values from dev */
> -int em28xx_resolution_set(struct em28xx *dev)
> +static int em28xx_resolution_set(struct em28xx *dev)
> {
> int width, height;
> width = norm_maxw(dev);
> @@ -310,7 +313,7 @@ int em28xx_resolution_set(struct em28xx *dev)
> return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
> }
>
> -int em28xx_vbi_supported(struct em28xx *dev)
> +static int em28xx_vbi_supported(struct em28xx *dev)
> {
> /* Modprobe option to manually disable */
> if (disable_vbi == 1)
> @@ -330,7 +333,7 @@ int em28xx_vbi_supported(struct em28xx *dev)
> }
>
> /* Set USB alternate setting for analog video */
> -int em28xx_set_alternate(struct em28xx *dev)
> +static int em28xx_set_alternate(struct em28xx *dev)
> {
> int errCode;
> int i;
> @@ -1020,7 +1023,7 @@ static struct vb2_ops em28xx_video_qops = {
> .wait_finish = vb2_ops_wait_finish,
> };
>
> -int em28xx_vb2_setup(struct em28xx *dev)
> +static int em28xx_vb2_setup(struct em28xx *dev)
> {
> int rc;
> struct vb2_queue *q;
> @@ -1088,7 +1091,7 @@ static void video_mux(struct em28xx *dev, int index)
> em28xx_audio_analog_set(dev);
> }
>
> -void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
> +static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
> {
> struct em28xx *dev = priv;
>
> @@ -1625,7 +1628,7 @@ static int vidioc_g_register(struct file *file, void *priv,
> reg->val = ret;
> } else {
> __le16 val = 0;
> - ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
> + ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
> reg->reg, (char *)&val, 2);
Urgh... is it really necessary to start using these pointers again ?
Ok... keep it as is, I'll send a patch to clean this up later.
> if (ret < 0)
> return ret;
> @@ -1872,11 +1875,11 @@ static int em28xx_v4l2_open(struct file *filp)
> }
>
> /*
> - * em28xx_realease_resources()
> + * em28xx_v4l2_fini()
> * unregisters the v4l2,i2c and usb devices
> * called when the device gets disconected or at module unload
> */
> -void em28xx_release_analog_resources(struct em28xx *dev)
> +static int em28xx_v4l2_fini(struct em28xx *dev)
> {
>
> /*FIXME: I2C IR should be disconnected */
> @@ -1906,6 +1909,8 @@ void em28xx_release_analog_resources(struct em28xx *dev)
> video_device_release(dev->vdev);
> dev->vdev = NULL;
> }
> +
> + return 0;
> }
>
> /*
> @@ -1927,12 +1932,12 @@ static int em28xx_v4l2_close(struct file *filp)
> if (dev->users == 1) {
> /* the device is already disconnect,
> free the remaining resources */
> +
> if (dev->disconnected) {
> - em28xx_release_resources(dev);
Who releases the resources now ?
> + v4l2_ctrl_handler_free(&dev->ctrl_handler);
> + v4l2_device_unregister(&dev->v4l2_dev);
> kfree(dev->alt_max_pkt_size_isoc);
> - mutex_unlock(&dev->lock);
> - kfree(dev);
> - return 0;
> + goto exit;
> }
>
> /* Save some power by putting tuner to sleep */
> @@ -1951,6 +1956,7 @@ static int em28xx_v4l2_close(struct file *filp)
> }
> }
>
> +exit:
> dev->users--;
Nice bugfix.
> mutex_unlock(&dev->lock);
> return 0;
> @@ -2047,8 +2053,6 @@ static struct video_device em28xx_radio_template = {
>
> /******************************** usb interface ******************************/
>
> -
> -
> static struct video_device *em28xx_vdev_init(struct em28xx *dev,
> const struct video_device *template,
> const char *type_name)
> @@ -2122,7 +2126,7 @@ static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
> }
> }
>
> -void em28xx_tuner_setup(struct em28xx *dev)
> +static void em28xx_tuner_setup(struct em28xx *dev)
> {
> struct tuner_setup tun_setup;
> struct v4l2_frequency f;
> @@ -2181,14 +2185,14 @@ void em28xx_tuner_setup(struct em28xx *dev)
> v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
> }
>
> -int em28xx_register_analog_devices(struct em28xx *dev)
> +static int em28xx_v4l2_init(struct em28xx *dev)
> {
> u8 val;
> int ret;
> unsigned int maxw;
> struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
>
> - if (!dev->is_audio_only) {
> + if (!dev->has_video) {
> /* This device does not support the v4l2 extension */
> return 0;
> }
> @@ -2196,6 +2200,8 @@ int em28xx_register_analog_devices(struct em28xx *dev)
> printk(KERN_INFO "%s: v4l2 driver version %s\n",
> dev->name, EM28XX_VERSION);
>
> + mutex_lock(&dev->lock);
> +
> ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev);
> if (ret < 0) {
> em28xx_errdev("Call to v4l2_device_register() failed!\n");
> @@ -2212,6 +2218,10 @@ int em28xx_register_analog_devices(struct em28xx *dev)
> dev->vinctl = EM28XX_VINCTRL_INTERLACED |
> EM28XX_VINCTRL_CCIR656_ENABLE;
>
> + /* Initialize tuner and camera */
> + em28xx_tuner_setup(dev);
> + em28xx_init_camera(dev);
> +
> /* Configure audio */
> ret = em28xx_audio_setup(dev);
> if (ret < 0) {
> @@ -2422,6 +2432,28 @@ int em28xx_register_analog_devices(struct em28xx *dev)
>
> /* initialize videobuf2 stuff */
> em28xx_vb2_setup(dev);
> +
> err:
> - return 0;
> + 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);
> diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
> index 7ae05ebc13c1..9d6f43e4681f 100644
> --- a/drivers/media/usb/em28xx/em28xx.h
> +++ b/drivers/media/usb/em28xx/em28xx.h
> @@ -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);
Nice clean-up ! :)
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