[media] cpia2: major overhaul to get it in a working state again (6c493f8b) · Commits · 戴 / test

drivers/media/video/cpia2/cpia2.h

+16 −18

Original line number	Diff line number	Diff line
		@@ -32,11 +32,12 @@
		#define __CPIA2_H__

		#include <linux/videodev2.h>
		#include <media/v4l2-common.h>
		#include <linux/usb.h>
		#include <linux/poll.h>
		#include <media/v4l2-common.h>
		#include <media/v4l2-device.h>
		#include <media/v4l2-ctrls.h>

		#include "cpia2dev.h"
		#include "cpia2_registers.h"

		/* define for verbose debug output */
		@@ -65,7 +66,6 @@

		/* Flicker Modes */
		#define NEVER_FLICKER 0
		#define ANTI_FLICKER_ON 1
		#define FLICKER_60 60
		#define FLICKER_50 50

		@@ -148,7 +148,6 @@ enum {
		#define DEFAULT_BRIGHTNESS 0x46
		#define DEFAULT_CONTRAST 0x93
		#define DEFAULT_SATURATION 0x7f
		#define DEFAULT_TARGET_KB 0x30

		/* Power state */
		#define HI_POWER_MODE CPIA2_SYSTEM_CONTROL_HIGH_POWER
		@@ -287,7 +286,6 @@ struct camera_params {
		struct {
		u8 cam_register;
		u8 flicker_mode_req; /* 1 if flicker on, else never flicker */
		int mains_frequency;
		} flicker_control;

		struct {
		@@ -337,7 +335,7 @@ struct camera_params {
		u8 vc_control;
		u8 vc_mp_direction;
		u8 vc_mp_data;
		u8 target_kb;
		u8 quality;
		} vc_params;

		struct {
		@@ -366,23 +364,23 @@ struct framebuf {
		struct framebuf *next;
		};

		struct cpia2_fh {
		enum v4l2_priority prio;
		u8 mmapped;
		};

		struct camera_data {
		/* locks */
		struct v4l2_device v4l2_dev;
		struct mutex v4l2_lock; /* serialize file operations */
		struct v4l2_prio_state prio;
		struct v4l2_ctrl_handler hdl;
		struct {
		/* Lights control cluster */
		struct v4l2_ctrl *top_light;
		struct v4l2_ctrl *bottom_light;
		};
		struct v4l2_ctrl *usb_alt;

		/* camera status */
		volatile int present; /* Is the camera still present? */
		int open_count; /* # of process that have camera open */
		int first_image_seen;
		u8 mains_freq; /* for flicker control */
		enum sensors sensor_type;
		u8 flush;
		struct v4l2_fh *stream_fh;
		u8 mmapped;
		int streaming; /* 0 = no, 1 = yes */
		int xfer_mode; /* XFER_BULK or XFER_ISOC */
		@@ -390,7 +388,7 @@ struct camera_data {

		/* v4l */
		int video_size; /* VIDEO_SIZE_ */
		struct video_device vdev; / v4l videodev */
		struct video_device vdev; /* v4l videodev */
		u32 width;
		u32 height; /* Its size */
		__u32 pixelformat; /* Format fourcc */
		@@ -425,6 +423,7 @@ struct camera_data {
		/* v4l */
		int cpia2_register_camera(struct camera_data *cam);
		void cpia2_unregister_camera(struct camera_data *cam);
		void cpia2_camera_release(struct v4l2_device *v4l2_dev);

		/* core */
		int cpia2_reset_camera(struct camera_data *cam);
		@@ -443,7 +442,7 @@ int cpia2_send_command(struct camera_data cam, struct cpia2_command cmd);
		int cpia2_do_command(struct camera_data *cam,
		unsigned int command,
		unsigned char direction, unsigned char param);
		struct camera_data *cpia2_init_camera_struct(void);
		struct camera_data cpia2_init_camera_struct(struct usb_interface intf);
		int cpia2_init_camera(struct camera_data *cam);
		int cpia2_allocate_buffers(struct camera_data *cam);
		void cpia2_free_buffers(struct camera_data *cam);
		@@ -454,7 +453,6 @@ unsigned int cpia2_poll(struct camera_data *cam,
		int cpia2_remap_buffer(struct camera_data cam, struct vm_area_struct vma);
		void cpia2_set_property_flip(struct camera_data *cam, int prop_val);
		void cpia2_set_property_mirror(struct camera_data *cam, int prop_val);
		int cpia2_set_target_kb(struct camera_data *cam, unsigned char value);
		int cpia2_set_gpio(struct camera_data *cam, unsigned char setting);
		int cpia2_set_fps(struct camera_data *cam, int framerate);

drivers/media/video/cpia2/cpia2_core.c

+31 −111

Original line number	Diff line number	Diff line
		@@ -66,7 +66,6 @@ static int config_sensor_410(struct camera_data *cam,
		static int config_sensor_500(struct camera_data *cam,
		int reqwidth, int reqheight);
		static int set_all_properties(struct camera_data *cam);
		static void get_color_params(struct camera_data *cam);
		static void wake_system(struct camera_data *cam);
		static void set_lowlight_boost(struct camera_data *cam);
		static void reset_camera_struct(struct camera_data *cam);
		@@ -453,15 +452,6 @@ int cpia2_do_command(struct camera_data *cam,
		cam->params.version.vp_device_hi = cmd.buffer.block_data[0];
		cam->params.version.vp_device_lo = cmd.buffer.block_data[1];
		break;
		case CPIA2_CMD_GET_VP_BRIGHTNESS:
		cam->params.color_params.brightness = cmd.buffer.block_data[0];
		break;
		case CPIA2_CMD_GET_CONTRAST:
		cam->params.color_params.contrast = cmd.buffer.block_data[0];
		break;
		case CPIA2_CMD_GET_VP_SATURATION:
		cam->params.color_params.saturation = cmd.buffer.block_data[0];
		break;
		case CPIA2_CMD_GET_VP_GPIO_DATA:
		cam->params.vp_params.gpio_data = cmd.buffer.block_data[0];
		break;
		@@ -617,6 +607,7 @@ int cpia2_reset_camera(struct camera_data *cam)
		{
		u8 tmp_reg;
		int retval = 0;
		int target_kb;
		int i;
		struct cpia2_command cmd;

		@@ -800,9 +791,16 @@ int cpia2_reset_camera(struct camera_data *cam)
		}
		cpia2_do_command(cam, CPIA2_CMD_SET_VC_CONTROL, TRANSFER_WRITE,tmp_reg);

		/* Set target size (kb) on vc */
		/* Set target size (kb) on vc
		This is a heuristic based on the quality parameter and the raw
		framesize in kB divided by 16 (the compression factor when the
		quality is 100%) */
		target_kb = (cam->width * cam->height * 2 / 16384) *
		cam->params.vc_params.quality / 100;
		if (target_kb < 1)
		target_kb = 1;
		cpia2_do_command(cam, CPIA2_CMD_SET_TARGET_KB,
		TRANSFER_WRITE, cam->params.vc_params.target_kb);
		TRANSFER_WRITE, target_kb);

		/* Wiggle VC Reset */
		/***
		@@ -1538,23 +1536,17 @@ static int set_all_properties(struct camera_data *cam)
		* framerate and user_mode were already set (set_default_user_mode).
		**/

		cpia2_set_color_params(cam);

		cpia2_usb_change_streaming_alternate(cam,
		cam->params.camera_state.stream_mode);

		cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
		cam->params.vp_params.user_effects);

		cpia2_set_flicker_mode(cam,
		cam->params.flicker_control.flicker_mode_req);

		cpia2_do_command(cam,
		CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
		TRANSFER_WRITE, cam->params.vp_params.gpio_direction);
		cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, TRANSFER_WRITE,
		cam->params.vp_params.gpio_data);

		v4l2_ctrl_handler_setup(&cam->hdl);

		wake_system(cam);

		set_lowlight_boost(cam);
		@@ -1569,7 +1561,6 @@ static int set_all_properties(struct camera_data *cam)
		*****************************************************************************/
		void cpia2_save_camera_state(struct camera_data *cam)
		{
		get_color_params(cam);
		cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
		cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, TRANSFER_READ,
		0);
		@@ -1577,30 +1568,6 @@ void cpia2_save_camera_state(struct camera_data *cam)
		/* Don't get framerate or target_kb. Trust the values we already have */
		}

		/******************************************************************************
		*
		* get_color_params
		*
		*****************************************************************************/
		static void get_color_params(struct camera_data *cam)
		{
		cpia2_do_command(cam, CPIA2_CMD_GET_VP_BRIGHTNESS, TRANSFER_READ, 0);
		cpia2_do_command(cam, CPIA2_CMD_GET_VP_SATURATION, TRANSFER_READ, 0);
		cpia2_do_command(cam, CPIA2_CMD_GET_CONTRAST, TRANSFER_READ, 0);
		}

		/******************************************************************************
		*
		* cpia2_set_color_params
		*
		*****************************************************************************/
		void cpia2_set_color_params(struct camera_data *cam)
		{
		DBG("Setting color params\n");
		cpia2_set_brightness(cam, cam->params.color_params.brightness);
		cpia2_set_contrast(cam, cam->params.color_params.contrast);
		cpia2_set_saturation(cam, cam->params.color_params.saturation);
		}

		/******************************************************************************
		*
		@@ -1664,15 +1631,9 @@ int cpia2_set_flicker_mode(struct camera_data *cam, int mode)

		switch(mode) {
		case NEVER_FLICKER:
		cam->params.flicker_control.flicker_mode_req = mode;
		break;
		case FLICKER_60:
		cam->params.flicker_control.flicker_mode_req = mode;
		cam->params.flicker_control.mains_frequency = 60;
		break;
		case FLICKER_50:
		cam->params.flicker_control.flicker_mode_req = mode;
		cam->params.flicker_control.mains_frequency = 50;
		break;
		default:
		err = -EINVAL;
		@@ -1701,6 +1662,7 @@ void cpia2_set_property_flip(struct camera_data *cam, int prop_val)
		{
		cam_reg &= ~CPIA2_VP_USER_EFFECTS_FLIP;
		}
		cam->params.vp_params.user_effects = cam_reg;
		cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
		cam_reg);
		}
		@@ -1725,35 +1687,11 @@ void cpia2_set_property_mirror(struct camera_data *cam, int prop_val)
		{
		cam_reg &= ~CPIA2_VP_USER_EFFECTS_MIRROR;
		}
		cam->params.vp_params.user_effects = cam_reg;
		cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
		cam_reg);
		}

		/******************************************************************************
		*
		* set_target_kb
		*
		* The new Target KB is set in cam->params.vc_params.target_kb and
		* activates on reset.
		*****************************************************************************/

		int cpia2_set_target_kb(struct camera_data *cam, unsigned char value)
		{
		DBG("Requested target_kb = %d\n", value);
		if (value != cam->params.vc_params.target_kb) {

		cpia2_usb_stream_pause(cam);

		/* reset camera for new target_kb */
		cam->params.vc_params.target_kb = value;
		cpia2_reset_camera(cam);

		cpia2_usb_stream_resume(cam);
		}

		return 0;
		}

		/******************************************************************************
		*
		* cpia2_set_gpio
		@@ -1854,7 +1792,6 @@ void cpia2_set_brightness(struct camera_data *cam, unsigned char value)
		void cpia2_set_contrast(struct camera_data *cam, unsigned char value)
		{
		DBG("Setting contrast to %d (0x%0x)\n", value, value);
		cam->params.color_params.contrast = value;
		cpia2_do_command(cam, CPIA2_CMD_SET_CONTRAST, TRANSFER_WRITE, value);
		}

		@@ -1866,7 +1803,6 @@ void cpia2_set_contrast(struct camera_data *cam, unsigned char value)
		void cpia2_set_saturation(struct camera_data *cam, unsigned char value)
		{
		DBG("Setting saturation to %d (0x%0x)\n", value, value);
		cam->params.color_params.saturation = value;
		cpia2_do_command(cam,CPIA2_CMD_SET_VP_SATURATION, TRANSFER_WRITE,value);
		}

		@@ -2168,14 +2104,10 @@ static void reset_camera_struct(struct camera_data *cam)
		/***
		* The following parameter values are the defaults from the register map.
		***/
		cam->params.color_params.brightness = DEFAULT_BRIGHTNESS;
		cam->params.color_params.contrast = DEFAULT_CONTRAST;
		cam->params.color_params.saturation = DEFAULT_SATURATION;
		cam->params.vp_params.lowlight_boost = 0;

		/* FlickerModes */
		cam->params.flicker_control.flicker_mode_req = NEVER_FLICKER;
		cam->params.flicker_control.mains_frequency = 60;

		/* jpeg params */
		cam->params.compression.jpeg_options = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
		@@ -2188,7 +2120,7 @@ static void reset_camera_struct(struct camera_data *cam)
		cam->params.vp_params.gpio_data = 0;

		/* Target kb params */
		cam->params.vc_params.target_kb = DEFAULT_TARGET_KB;
		cam->params.vc_params.quality = 100;

		/***
		* Set Sensor FPS as fast as possible.
		@@ -2228,7 +2160,7 @@ static void reset_camera_struct(struct camera_data *cam)
		*
		* Initializes camera struct, does not call reset to fill in defaults.
		*****************************************************************************/
		struct camera_data *cpia2_init_camera_struct(void)
		struct camera_data cpia2_init_camera_struct(struct usb_interface intf)
		{
		struct camera_data *cam;

		@@ -2239,8 +2171,13 @@ struct camera_data *cpia2_init_camera_struct(void)
		return NULL;
		}

		cam->v4l2_dev.release = cpia2_camera_release;
		if (v4l2_device_register(&intf->dev, &cam->v4l2_dev) < 0) {
		v4l2_err(&cam->v4l2_dev, "couldn't register v4l2_device\n");
		kfree(cam);
		return NULL;
		}

		cam->present = 1;
		mutex_init(&cam->v4l2_lock);
		init_waitqueue_head(&cam->wq_stream);

		@@ -2373,11 +2310,6 @@ long cpia2_read(struct camera_data *cam,
		return -EINVAL;
		}

		if (!cam->present) {
		LOG("%s: camera removed\n",__func__);
		return 0; /* EOF */
		}

		if (!cam->streaming) {
		/* Start streaming */
		cpia2_usb_stream_start(cam,
		@@ -2393,12 +2325,12 @@ long cpia2_read(struct camera_data *cam,
		if (frame->status != FRAME_READY) {
		mutex_unlock(&cam->v4l2_lock);
		wait_event_interruptible(cam->wq_stream,
		!cam->present \|\|
		!video_is_registered(&cam->vdev) \|\|
		(frame = cam->curbuff)->status == FRAME_READY);
		mutex_lock(&cam->v4l2_lock);
		if (signal_pending(current))
		return -ERESTARTSYS;
		if (!cam->present)
		if (!video_is_registered(&cam->vdev))
		return 0;
		}

		@@ -2423,17 +2355,10 @@ long cpia2_read(struct camera_data *cam,
		unsigned int cpia2_poll(struct camera_data cam, struct file filp,
		poll_table *wait)
		{
		unsigned int status=0;
		unsigned int status = v4l2_ctrl_poll(filp, wait);

		if (!cam) {
		ERR("%s: Internal error, camera_data not found!\n",__func__);
		return POLLERR;
		}

		if (!cam->present)
		return POLLHUP;

		if(!cam->streaming) {
		if ((poll_requested_events(wait) & (POLLIN \| POLLRDNORM)) &&
		!cam->streaming) {
		/* Start streaming */
		cpia2_usb_stream_start(cam,
		cam->params.camera_state.stream_mode);
		@@ -2441,10 +2366,8 @@ unsigned int cpia2_poll(struct camera_data cam, struct file filp,

		poll_wait(filp, &cam->wq_stream, wait);

		if(!cam->present)
		status = POLLHUP;
		else if(cam->curbuff->status == FRAME_READY)
		status = POLLIN \| POLLRDNORM;
		if (cam->curbuff->status == FRAME_READY)
		status \|= POLLIN \| POLLRDNORM;

		return status;
		}
		@@ -2462,12 +2385,9 @@ int cpia2_remap_buffer(struct camera_data cam, struct vm_area_struct vma)
		unsigned long start = (unsigned long) adr;
		unsigned long page, pos;

		if (!cam)
		return -ENODEV;

		DBG("mmap offset:%ld size:%ld\n", start_offset, size);

		if (!cam->present)
		if (!video_is_registered(&cam->vdev))
		return -ENODEV;

		if (size > cam->frame_size*cam->num_frames \|\|

drivers/media/video/cpia2/cpia2_usb.c

+59 −19

Original line number	Diff line number	Diff line
		@@ -54,6 +54,8 @@ static void cpia2_usb_complete(struct urb *urb);
		static int cpia2_usb_probe(struct usb_interface *intf,
		const struct usb_device_id *id);
		static void cpia2_usb_disconnect(struct usb_interface *intf);
		static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message);
		static int cpia2_usb_resume(struct usb_interface *intf);

		static void free_sbufs(struct camera_data *cam);
		static void add_APPn(struct camera_data *cam);
		@@ -74,6 +76,9 @@ static struct usb_driver cpia2_driver = {
		.name = "cpia2",
		.probe = cpia2_usb_probe,
		.disconnect = cpia2_usb_disconnect,
		.suspend = cpia2_usb_suspend,
		.resume = cpia2_usb_resume,
		.reset_resume = cpia2_usb_resume,
		.id_table = cpia2_id_table
		};

		@@ -218,10 +223,9 @@ static void cpia2_usb_complete(struct urb *urb)
		return;
		}

		if (!cam->streaming \|\| !cam->present \|\| cam->open_count == 0) {
		LOG("Will now stop the streaming: streaming = %d, "
		"present=%d, open_count=%d\n",
		cam->streaming, cam->present, cam->open_count);
		if (!cam->streaming \|\| !video_is_registered(&cam->vdev)) {
		LOG("Will now stop the streaming: streaming = %d, present=%d\n",
		cam->streaming, video_is_registered(&cam->vdev));
		return;
		}

		@@ -392,7 +396,7 @@ static int configure_transfer_mode(struct camera_data *cam, unsigned int alt)
		struct cpia2_command cmd;
		unsigned char reg;

		if(!cam->present)
		if (!video_is_registered(&cam->vdev))
		return -ENODEV;

		/***
		@@ -752,8 +756,8 @@ int cpia2_usb_stream_pause(struct camera_data *cam)
		{
		int ret = 0;
		if(cam->streaming) {
		ret = set_alternate(cam, USBIF_CMDONLY);
		free_sbufs(cam);
		ret = set_alternate(cam, USBIF_CMDONLY);
		}
		return ret;
		}
		@@ -770,6 +774,10 @@ int cpia2_usb_stream_resume(struct camera_data *cam)
		cam->first_image_seen = 0;
		ret = set_alternate(cam, cam->params.camera_state.stream_mode);
		if(ret == 0) {
		/* for some reason the user effects need to be set
		again when starting streaming. */
		cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
		cam->params.vp_params.user_effects);
		ret = submit_urbs(cam);
		}
		}
		@@ -784,6 +792,7 @@ int cpia2_usb_stream_resume(struct camera_data *cam)
		int cpia2_usb_stream_stop(struct camera_data *cam)
		{
		int ret;

		ret = cpia2_usb_stream_pause(cam);
		cam->streaming = 0;
		configure_transfer_mode(cam, 0);
		@@ -812,7 +821,8 @@ static int cpia2_usb_probe(struct usb_interface *intf,
		/* If we get to this point, we found a CPiA2 camera */
		LOG("CPiA2 USB camera found\n");

		if((cam = cpia2_init_camera_struct()) == NULL)
		cam = cpia2_init_camera_struct(intf);
		if (cam == NULL)
		return -ENOMEM;

		cam->dev = udev;
		@@ -825,16 +835,9 @@ static int cpia2_usb_probe(struct usb_interface *intf,
		return ret;
		}

		if ((ret = cpia2_register_camera(cam)) < 0) {
		ERR("%s: Failed to register cpia2 camera (ret = %d)\n", __func__, ret);
		kfree(cam);
		return ret;
		}


		if((ret = cpia2_init_camera(cam)) < 0) {
		ERR("%s: failed to initialize cpia2 camera (ret = %d)\n", __func__, ret);
		cpia2_unregister_camera(cam);
		kfree(cam);
		return ret;
		}
		@@ -853,6 +856,13 @@ static int cpia2_usb_probe(struct usb_interface *intf,

		usb_set_intfdata(intf, cam);

		ret = cpia2_register_camera(cam);
		if (ret < 0) {
		ERR("%s: Failed to register cpia2 camera (ret = %d)\n", __func__, ret);
		kfree(cam);
		return ret;
		}

		return 0;
		}

		@@ -865,13 +875,16 @@ static void cpia2_usb_disconnect(struct usb_interface *intf)
		{
		struct camera_data *cam = usb_get_intfdata(intf);
		usb_set_intfdata(intf, NULL);
		cam->present = 0;

		DBG("Stopping stream\n");
		cpia2_usb_stream_stop(cam);

		mutex_lock(&cam->v4l2_lock);
		DBG("Unregistering camera\n");
		cpia2_unregister_camera(cam);
		v4l2_device_disconnect(&cam->v4l2_dev);
		mutex_unlock(&cam->v4l2_lock);
		v4l2_device_put(&cam->v4l2_dev);

		if(cam->buffers) {
		DBG("Wakeup waiting processes\n");
		@@ -884,14 +897,41 @@ static void cpia2_usb_disconnect(struct usb_interface *intf)
		DBG("Releasing interface\n");
		usb_driver_release_interface(&cpia2_driver, intf);

		if (cam->open_count == 0) {
		DBG("Freeing camera structure\n");
		kfree(cam);
		LOG("CPiA2 camera disconnected.\n");
		}

		LOG("CPiA2 camera disconnected.\n");
		static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message)
		{
		struct camera_data *cam = usb_get_intfdata(intf);

		mutex_lock(&cam->v4l2_lock);
		if (cam->streaming) {
		cpia2_usb_stream_stop(cam);
		cam->streaming = 1;
		}
		mutex_unlock(&cam->v4l2_lock);

		dev_info(&intf->dev, "going into suspend..\n");
		return 0;
		}

		/* Resume device - start device. */
		static int cpia2_usb_resume(struct usb_interface *intf)
		{
		struct camera_data *cam = usb_get_intfdata(intf);

		mutex_lock(&cam->v4l2_lock);
		v4l2_ctrl_handler_setup(&cam->hdl);
		if (cam->streaming) {
		cam->streaming = 0;
		cpia2_usb_stream_start(cam,
		cam->params.camera_state.stream_mode);
		}
		mutex_unlock(&cam->v4l2_lock);

		dev_info(&intf->dev, "coming out of suspend..\n");
		return 0;
		}

		/******************************************************************************
		*

drivers/media/video/cpia2/cpia2_v4l.c

+257 −589

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drivers/media/video/cpia2/cpia2dev.h

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Original line number	Diff line number	Diff line
		/****************************************************************************
		*
		* Filename: cpia2dev.h
		*
		* Copyright 2001, STMicrolectronics, Inc.
		*
		* Contact: steve.miller@st.com
		*
		* Description:
		* This file provides definitions for applications wanting to use the
		* cpia2 driver beyond the generic v4l capabilities.
		*
		* 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; either version 2 of the License, or
		* (at your option) any later version.
		*
		* 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.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		*
		****************************************************************************/

		#ifndef CPIA2_DEV_HEADER
		#define CPIA2_DEV_HEADER

		#include <linux/videodev2.h>

		/***
		* The following defines are ioctl numbers based on video4linux private ioctls,
		* which can range from 192 (BASE_VIDIOCPRIVATE) to 255. All of these take int
		* args
		*/
		#define CPIA2_IOC_SET_GPIO _IOW('v', BASE_VIDIOC_PRIVATE + 17, __u32)

		/* V4L2 driver specific controls */
		#define CPIA2_CID_TARGET_KB (V4L2_CID_PRIVATE_BASE+0)
		#define CPIA2_CID_GPIO (V4L2_CID_PRIVATE_BASE+1)
		#define CPIA2_CID_FLICKER_MODE (V4L2_CID_PRIVATE_BASE+2)
		#define CPIA2_CID_FRAMERATE (V4L2_CID_PRIVATE_BASE+3)
		#define CPIA2_CID_USB_ALT (V4L2_CID_PRIVATE_BASE+4)
		#define CPIA2_CID_LIGHTS (V4L2_CID_PRIVATE_BASE+5)
		#define CPIA2_CID_RESET_CAMERA (V4L2_CID_PRIVATE_BASE+6)

		#endif

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