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Commit a08d2c72 authored by Hans de Goede's avatar Hans de Goede Committed by Mauro Carvalho Chehab
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[media] pwc: Remove driver specific ioctls 

This stems from the v4l1 era, with v4l2 everything can be done with
standardized v4l2 API calls.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent dc8a7e83
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Showing with 26 additions and 940 deletions
Documentation/feature-removal-schedule.txt
View file @ a08d2c72
......@@ -460,15 +460,6 @@ Who: Jean Delvare <khali@linux-fr.org>
----------------------------
What: Support for driver specific ioctls in the pwc driver (everything
defined in media/pwc-ioctl.h)
When: 3.3
Why: This stems from the v4l1 era, with v4l2 everything can be done with
standardized v4l2 API calls
Who: Hans de Goede <hdegoede@redhat.com>
----------------------------
What: Software emulation of arbritary resolutions in the pwc driver
When: 3.3
Why: The pwc driver claims to support any resolution between 160x120
......
drivers/media/video/pwc/pwc-ctrl.c
View file @ a08d2c72
......@@ -604,136 +604,6 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
return r;
}
static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
{
unsigned char buf[2];
int ret;
if (pdev->type < 730) {
*on_value = -1;
*off_value = -1;
return 0;
}
ret = recv_control_msg(pdev,
GET_STATUS_CTL, LED_FORMATTER, &buf, sizeof(buf));
if (ret < 0)
return ret;
*on_value = buf[0] * 100;
*off_value = buf[1] * 100;
return 0;
}
static int _pwc_mpt_reset(struct pwc_device *pdev, int flags)
{
unsigned char buf;
int r;
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
r = -ENODEV;
goto leave;
}
buf = flags & 0x03; // only lower two bits are currently used
r = send_control_msg(pdev,
SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, &buf, sizeof(buf));
leave:
mutex_unlock(&pdev->udevlock);
return r;
}
int pwc_mpt_reset(struct pwc_device *pdev, int flags)
{
int ret;
ret = _pwc_mpt_reset(pdev, flags);
if (ret >= 0) {
pdev->pan_angle = 0;
pdev->tilt_angle = 0;
}
return ret;
}
static int _pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
{
unsigned char buf[4];
int r;
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
r = -ENODEV;
goto leave;
}
/* set new relative angle; angles are expressed in degrees * 100,
but cam as .5 degree resolution, hence divide by 200. Also
the angle must be multiplied by 64 before it's send to
the cam (??)
*/
pan = 64 * pan / 100;
tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
buf[0] = pan & 0xFF;
buf[1] = (pan >> 8) & 0xFF;
buf[2] = tilt & 0xFF;
buf[3] = (tilt >> 8) & 0xFF;
r = send_control_msg(pdev,
SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, &buf, sizeof(buf));
leave:
mutex_unlock(&pdev->udevlock);
return r;
}
int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
{
int ret;
/* check absolute ranges */
if (pan < pdev->angle_range.pan_min ||
pan > pdev->angle_range.pan_max ||
tilt < pdev->angle_range.tilt_min ||
tilt > pdev->angle_range.tilt_max)
return -ERANGE;
/* go to relative range, check again */
pan -= pdev->pan_angle;
tilt -= pdev->tilt_angle;
/* angles are specified in degrees * 100, thus the limit = 36000 */
if (pan < -36000 || pan > 36000 || tilt < -36000 || tilt > 36000)
return -ERANGE;
ret = _pwc_mpt_set_angle(pdev, pan, tilt);
if (ret >= 0) {
pdev->pan_angle += pan;
pdev->tilt_angle += tilt;
}
if (ret == -EPIPE) /* stall -> out of range */
ret = -ERANGE;
return ret;
}
static int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
{
int ret;
unsigned char buf[5];
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
ret = -ENODEV;
goto leave;
}
ret = recv_control_msg(pdev,
GET_MPT_CTL, PT_STATUS_FORMATTER, &buf, sizeof(buf));
if (ret < 0)
goto leave;
status->status = buf[0] & 0x7; // 3 bits are used for reporting
status->time_pan = (buf[1] << 8) + buf[2];
status->time_tilt = (buf[3] << 8) + buf[4];
leave:
mutex_unlock(&pdev->udevlock);
return ret;
}
#ifdef CONFIG_USB_PWC_DEBUG
int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
{
......@@ -758,444 +628,3 @@ int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
return 0;
}
#endif
/* End of Add-Ons */
/* ************************************************* */
/* Linux 2.5.something and 2.6 pass direct pointers to arguments of
ioctl() calls. With 2.4, you have to do tedious copy_from_user()
and copy_to_user() calls. With these macros we circumvent this,
and let me maintain only one source file. The functionality is
exactly the same otherwise.
*/
/* define local variable for arg */
#define ARG_DEF(ARG_type, ARG_name)\
ARG_type *ARG_name = arg;
/* copy arg to local variable */
#define ARG_IN(ARG_name) /* nothing */
/* argument itself (referenced) */
#define ARGR(ARG_name) (*ARG_name)
/* argument address */
#define ARGA(ARG_name) ARG_name
/* copy local variable to arg */
#define ARG_OUT(ARG_name) /* nothing */
/*
* Our ctrls use native values, but the old custom pwc ioctl interface expects
* values from 0 - 65535, define 2 helper functions to scale things. */
static int pwc_ioctl_g_ctrl(struct v4l2_ctrl *ctrl)
{
return v4l2_ctrl_g_ctrl(ctrl) * 65535 / ctrl->maximum;
}
static int pwc_ioctl_s_ctrl(struct v4l2_ctrl *ctrl, int val)
{
return v4l2_ctrl_s_ctrl(ctrl, val * ctrl->maximum / 65535);
}
long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
{
long ret = 0;
switch(cmd) {
case VIDIOCPWCRUSER:
ret = v4l2_ctrl_s_ctrl(pdev->restore_user, 0);
break;
case VIDIOCPWCSUSER:
ret = v4l2_ctrl_s_ctrl(pdev->save_user, 0);
break;
case VIDIOCPWCFACTORY:
ret = v4l2_ctrl_s_ctrl(pdev->restore_factory, 0);
break;
case VIDIOCPWCSCQUAL:
{
ARG_DEF(int, qual)
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
ret = -ENODEV;
goto leave;
}
if (pdev->iso_init) {
ret = -EBUSY;
goto leave;
}
ARG_IN(qual)
if (ARGR(qual) < 0 || ARGR(qual) > 3)
ret = -EINVAL;
else
ret = pwc_set_video_mode(pdev,
pdev->view.x, pdev->view.y,
pdev->vframes, ARGR(qual));
leave:
mutex_unlock(&pdev->udevlock);
break;
}
case VIDIOCPWCGCQUAL:
{
ARG_DEF(int, qual)
ARGR(qual) = pdev->vcompression;
ARG_OUT(qual)
break;
}
case VIDIOCPWCPROBE:
{
ARG_DEF(struct pwc_probe, probe)
strcpy(ARGR(probe).name, pdev->vdev.name);
ARGR(probe).type = pdev->type;
ARG_OUT(probe)
break;
}
case VIDIOCPWCGSERIAL:
{
ARG_DEF(struct pwc_serial, serial)
strcpy(ARGR(serial).serial, pdev->serial);
ARG_OUT(serial)
break;
}
case VIDIOCPWCSAGC:
{
ARG_DEF(int, agc)
ARG_IN(agc)
ret = v4l2_ctrl_s_ctrl(pdev->autogain, ARGR(agc) < 0);
if (ret == 0 && ARGR(agc) >= 0)
ret = pwc_ioctl_s_ctrl(pdev->gain, ARGR(agc));
break;
}
case VIDIOCPWCGAGC:
{
ARG_DEF(int, agc)
if (v4l2_ctrl_g_ctrl(pdev->autogain))
ARGR(agc) = -1;
else
ARGR(agc) = pwc_ioctl_g_ctrl(pdev->gain);
ARG_OUT(agc)
break;
}
case VIDIOCPWCSSHUTTER:
{
ARG_DEF(int, shutter)
ARG_IN(shutter)
ret = v4l2_ctrl_s_ctrl(pdev->exposure_auto,
/* Menu idx 0 = auto, idx 1 = manual */
ARGR(shutter) >= 0);
if (ret == 0 && ARGR(shutter) >= 0)
ret = pwc_ioctl_s_ctrl(pdev->exposure, ARGR(shutter));
break;
}
case VIDIOCPWCSAWB:
{
ARG_DEF(struct pwc_whitebalance, wb)
ARG_IN(wb)
ret = v4l2_ctrl_s_ctrl(pdev->auto_white_balance,
ARGR(wb).mode);
if (ret == 0 && ARGR(wb).mode == PWC_WB_MANUAL)
ret = pwc_ioctl_s_ctrl(pdev->red_balance,
ARGR(wb).manual_red);
if (ret == 0 && ARGR(wb).mode == PWC_WB_MANUAL)
ret = pwc_ioctl_s_ctrl(pdev->blue_balance,
ARGR(wb).manual_blue);
break;
}
case VIDIOCPWCGAWB:
{
ARG_DEF(struct pwc_whitebalance, wb)
ARGR(wb).mode = v4l2_ctrl_g_ctrl(pdev->auto_white_balance);
ARGR(wb).manual_red = ARGR(wb).read_red =
pwc_ioctl_g_ctrl(pdev->red_balance);
ARGR(wb).manual_blue = ARGR(wb).read_blue =
pwc_ioctl_g_ctrl(pdev->blue_balance);
ARG_OUT(wb)
break;
}
case VIDIOCPWCSAWBSPEED:
{
ARG_DEF(struct pwc_wb_speed, wbs)
if (ARGR(wbs).control_speed > 0) {
ret = pwc_ioctl_s_ctrl(pdev->awb_speed,
ARGR(wbs).control_speed);
}
if (ret == 0 && ARGR(wbs).control_delay > 0) {
ret = pwc_ioctl_s_ctrl(pdev->awb_delay,
ARGR(wbs).control_delay);
}
break;
}
case VIDIOCPWCGAWBSPEED:
{
ARG_DEF(struct pwc_wb_speed, wbs)
ARGR(wbs).control_speed = v4l2_ctrl_g_ctrl(pdev->awb_speed);
ARGR(wbs).control_delay = v4l2_ctrl_g_ctrl(pdev->awb_delay);
ARG_OUT(wbs)
break;
}
case VIDIOCPWCSLED:
{
ARG_DEF(struct pwc_leds, leds)
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
ret = -ENODEV;
break;
}
ARG_IN(leds)
ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
mutex_unlock(&pdev->udevlock);
break;
}
case VIDIOCPWCGLED:
{
ARG_DEF(struct pwc_leds, leds)
mutex_lock(&pdev->udevlock);
if (!pdev->udev) {
ret = -ENODEV;
break;
}
ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
ARG_OUT(leds)
mutex_unlock(&pdev->udevlock);
break;
}
case VIDIOCPWCSCONTOUR:
{
ARG_DEF(int, contour)
ARG_IN(contour)
ret = v4l2_ctrl_s_ctrl(pdev->autocontour, ARGR(contour) < 0);
if (ret == 0 && ARGR(contour) >= 0)
ret = pwc_ioctl_s_ctrl(pdev->contour, ARGR(contour));
break;
}
case VIDIOCPWCGCONTOUR:
{
ARG_DEF(int, contour)
if (v4l2_ctrl_g_ctrl(pdev->autocontour))
ARGR(contour) = -1;
else
ARGR(contour) = pwc_ioctl_g_ctrl(pdev->contour);
ARG_OUT(contour)
break;
}
case VIDIOCPWCSBACKLIGHT:
{
ARG_DEF(int, backlight)
ARG_IN(backlight)
ret = v4l2_ctrl_s_ctrl(pdev->backlight, ARGR(backlight));
break;
}
case VIDIOCPWCGBACKLIGHT:
{
ARG_DEF(int, backlight)
ARGR(backlight) = v4l2_ctrl_g_ctrl(pdev->backlight);
ARG_OUT(backlight)
break;
}
case VIDIOCPWCSFLICKER:
{
ARG_DEF(int, flicker)
ARG_IN(flicker)
ret = v4l2_ctrl_s_ctrl(pdev->flicker, ARGR(flicker));
break;
}
case VIDIOCPWCGFLICKER:
{
ARG_DEF(int, flicker)
ARGR(flicker) = v4l2_ctrl_g_ctrl(pdev->flicker);
ARG_OUT(flicker)
break;
}
case VIDIOCPWCSDYNNOISE:
{
ARG_DEF(int, dynnoise)
ARG_IN(dynnoise)
ret = v4l2_ctrl_s_ctrl(pdev->noise_reduction, ARGR(dynnoise));
break;
}
case VIDIOCPWCGDYNNOISE:
{
ARG_DEF(int, dynnoise)
ARGR(dynnoise) = v4l2_ctrl_g_ctrl(pdev->noise_reduction);
ARG_OUT(dynnoise);
break;
}
case VIDIOCPWCGREALSIZE:
{
ARG_DEF(struct pwc_imagesize, size)
ARGR(size).width = pdev->image.x;
ARGR(size).height = pdev->image.y;
ARG_OUT(size)
break;
}
case VIDIOCPWCMPTRESET:
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
ARG_DEF(int, flags)
ARG_IN(flags)
ret = pwc_mpt_reset(pdev, ARGR(flags));
}
else
{
ret = -ENXIO;
}
break;
}
case VIDIOCPWCMPTGRANGE:
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
ARG_DEF(struct pwc_mpt_range, range)
ARGR(range) = pdev->angle_range;
ARG_OUT(range)
}
else
{
ret = -ENXIO;
}
break;
}
case VIDIOCPWCMPTSANGLE:
{
int new_pan, new_tilt;
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
ARG_DEF(struct pwc_mpt_angles, angles)
ARG_IN(angles)
/* The camera can only set relative angles, so
do some calculations when getting an absolute angle .
*/
if (ARGR(angles).absolute)
{
new_pan = ARGR(angles).pan;
new_tilt = ARGR(angles).tilt;
}
else
{
new_pan = pdev->pan_angle + ARGR(angles).pan;
new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
}
ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
}
else
{
ret = -ENXIO;
}
break;
}
case VIDIOCPWCMPTGANGLE:
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
ARG_DEF(struct pwc_mpt_angles, angles)
ARGR(angles).absolute = 1;
ARGR(angles).pan = pdev->pan_angle;
ARGR(angles).tilt = pdev->tilt_angle;
ARG_OUT(angles)
}
else
{
ret = -ENXIO;
}
break;
}
case VIDIOCPWCMPTSTATUS:
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
ARG_DEF(struct pwc_mpt_status, status)
ret = pwc_mpt_get_status(pdev, ARGA(status));
ARG_OUT(status)
}
else
{
ret = -ENXIO;
}
break;
}
case VIDIOCPWCGVIDCMD:
{
ARG_DEF(struct pwc_video_command, vcmd);
ARGR(vcmd).type = pdev->type;
ARGR(vcmd).release = pdev->release;
ARGR(vcmd).command_len = pdev->cmd_len;
memcpy(&ARGR(vcmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
ARGR(vcmd).bandlength = pdev->vbandlength;
ARGR(vcmd).frame_size = pdev->frame_size;
ARG_OUT(vcmd)
break;
}
/*
case VIDIOCPWCGVIDTABLE:
{
ARG_DEF(struct pwc_table_init_buffer, table);
ARGR(table).len = pdev->cmd_len;
memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
ARG_OUT(table)
break;
}
*/
default:
ret = -ENOIOCTLCMD;
break;
}
if (ret > 0)
return 0;
return ret;
}
/* vim: set cinoptions= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
drivers/media/video/pwc/pwc-dec23.c
View file @ a08d2c72
......@@ -27,7 +27,6 @@
#include "pwc-timon.h"
#include "pwc-kiara.h"
#include "pwc-dec23.h"
#include <media/pwc-ioctl.h>
#include <linux/string.h>
#include <linux/slab.h>
......
drivers/media/video/pwc/pwc-if.c
View file @ a08d2c72
......@@ -1058,16 +1058,6 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
pdev->vframes = default_fps;
strcpy(pdev->serial, serial_number);
pdev->features = features;
if (vendor_id == 0x046D && product_id == 0x08B5) {
/* Logitech QuickCam Orbit
The ranges have been determined experimentally; they may differ from cam to cam.
Also, the exact ranges left-right and up-down are different for my cam
*/
pdev->angle_range.pan_min = -7000;
pdev->angle_range.pan_max = 7000;
pdev->angle_range.tilt_min = -3000;
pdev->angle_range.tilt_max = 2500;
}
pwc_construct(pdev); /* set min/max sizes correct */
mutex_init(&pdev->capt_file_lock);
......
drivers/media/video/pwc/pwc-kiara.h
View file @ a08d2c72
......@@ -27,7 +27,7 @@
#ifndef PWC_KIARA_H
#define PWC_KIARA_H
#include <media/pwc-ioctl.h>
#include "pwc.h"
#define PWC_FPS_MAX_KIARA 6
......
drivers/media/video/pwc/pwc-timon.h
View file @ a08d2c72
......@@ -42,7 +42,7 @@
#ifndef PWC_TIMON_H
#define PWC_TIMON_H
#include <media/pwc-ioctl.h>
#include "pwc.h"
#define PWC_FPS_MAX_TIMON 6
......
drivers/media/video/pwc/pwc-v4l.c
View file @ a08d2c72
......@@ -1122,14 +1122,6 @@ static int pwc_log_status(struct file *file, void *priv)
return 0;
}
static long pwc_default(struct file *file, void *fh, bool valid_prio,
int cmd, void *arg)
{
struct pwc_device *pdev = video_drvdata(file);
return pwc_ioctl(pdev, cmd, arg);
}
const struct v4l2_ioctl_ops pwc_ioctl_ops = {
.vidioc_querycap = pwc_querycap,
.vidioc_enum_input = pwc_enum_input,
......@@ -1148,8 +1140,4 @@ const struct v4l2_ioctl_ops pwc_ioctl_ops = {
.vidioc_log_status = pwc_log_status,
.vidioc_enum_framesizes = pwc_enum_framesizes,
.vidioc_enum_frameintervals = pwc_enum_frameintervals,
.vidioc_default = pwc_default,
};
/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
drivers/media/video/pwc/pwc.h
View file @ a08d2c72
......@@ -45,8 +45,6 @@
#include <linux/input.h>
#endif
#include <media/pwc-ioctl.h>
/* Version block */
#define PWC_VERSION "10.0.15"
#define PWC_NAME "pwc"
......@@ -189,6 +187,30 @@
#define PT_RESET_CONTROL_FORMATTER 0x02
#define PT_STATUS_FORMATTER 0x03
/* Enumeration of image sizes */
#define PSZ_SQCIF 0x00
#define PSZ_QSIF 0x01
#define PSZ_QCIF 0x02
#define PSZ_SIF 0x03
#define PSZ_CIF 0x04
#define PSZ_VGA 0x05
#define PSZ_MAX 6
struct pwc_raw_frame {
__le16 type; /* type of the webcam */
__le16 vbandlength; /* Size of 4 lines compressed (used by the
decompressor) */
__u8 cmd[4]; /* the four byte of the command (in case of
nala, only the first 3 bytes is filled) */
__u8 rawframe[0]; /* frame_size = H / 4 * vbandlength */
} __packed;
/* structure for transferring x & y coordinates */
struct pwc_coord {
int x, y; /* guess what */
int size; /* size, or offset */
};
/* intermediate buffers with raw data from the USB cam */
struct pwc_frame_buf
{
......@@ -269,11 +291,6 @@ struct pwc_device
struct pwc_coord image, view; /* image and viewport size */
struct pwc_coord offset; /* offset of the viewport */
/*** motorized pan/tilt feature */
struct pwc_mpt_range angle_range;
int pan_angle; /* in degrees * 100 */
int tilt_angle; /* absolute angle; 0,0 is home */
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
struct input_dev *button_dev; /* webcam snapshot button input */
char button_phys[64];
......@@ -357,8 +374,6 @@ void pwc_construct(struct pwc_device *pdev);
extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
int frames, int compression);
extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size);
extern int pwc_mpt_reset(struct pwc_device *pdev, int flags);
extern int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt);
extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value);
extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor);
extern int send_control_msg(struct pwc_device *pdev,
......@@ -377,9 +392,6 @@ int pwc_init_controls(struct pwc_device *pdev);
/* Power down or up the camera; not supported by all models */
extern void pwc_camera_power(struct pwc_device *pdev, int power);
/* Private ioctl()s; see pwc-ioctl.h */
extern long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg);
extern const struct v4l2_ioctl_ops pwc_ioctl_ops;
/** pwc-uncompress.c */
......
include/media/pwc-ioctl.h deleted 100644 → 0
View file @ dc8a7e83
#ifndef PWC_IOCTL_H
#define PWC_IOCTL_H
/* (C) 2001-2004 Nemosoft Unv.
(C) 2004-2006 Luc Saillard (luc@saillard.org)
NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
driver and thus may have bugs that are not present in the original version.
Please send bug reports and support requests to <luc@saillard.org>.
The decompression routines have been implemented by reverse-engineering the
Nemosoft binary pwcx module. Caveat emptor.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* This is pwc-ioctl.h belonging to PWC 10.0.10
It contains structures and defines to communicate from user space
directly to the driver.
*/
/*
Changes
2001/08/03 Alvarado Added ioctl constants to access methods for
changing white balance and red/blue gains
2002/12/15 G. H. Fernandez-Toribio VIDIOCGREALSIZE
2003/12/13 Nemosft Unv. Some modifications to make interfacing to
PWCX easier
2006/01/01 Luc Saillard Add raw format definition
*/
/* These are private ioctl() commands, specific for the Philips webcams.
They contain functions not found in other webcams, and settings not
specified in the Video4Linux API.
The #define names are built up like follows:
VIDIOC VIDeo IOCtl prefix
PWC Philps WebCam
G optional: Get
S optional: Set
... the function
*/
#include <linux/types.h>
/* Enumeration of image sizes */
#define PSZ_SQCIF 0x00
#define PSZ_QSIF 0x01
#define PSZ_QCIF 0x02
#define PSZ_SIF 0x03
#define PSZ_CIF 0x04
#define PSZ_VGA 0x05
#define PSZ_MAX 6
/* The frame rate is encoded in the video_window.flags parameter using
the upper 16 bits, since some flags are defined nowadays. The following
defines provide a mask and shift to filter out this value.
This value can also be passing using the private flag when using v4l2 and
VIDIOC_S_FMT ioctl.
In 'Snapshot' mode the camera freezes its automatic exposure and colour
balance controls.
*/
#define PWC_FPS_SHIFT 16
#define PWC_FPS_MASK 0x00FF0000
#define PWC_FPS_FRMASK 0x003F0000
#define PWC_FPS_SNAPSHOT 0x00400000
#define PWC_QLT_MASK 0x03000000
#define PWC_QLT_SHIFT 24
/* structure for transferring x & y coordinates */
struct pwc_coord
{
int x, y; /* guess what */
int size; /* size, or offset */
};
/* Used with VIDIOCPWCPROBE */
struct pwc_probe
{
char name[32];
int type;
};
struct pwc_serial
{
char serial[30]; /* String with serial number. Contains terminating 0 */
};
/* pwc_whitebalance.mode values */
#define PWC_WB_INDOOR 0
#define PWC_WB_OUTDOOR 1
#define PWC_WB_FL 2
#define PWC_WB_MANUAL 3
#define PWC_WB_AUTO 4
/* Used with VIDIOCPWC[SG]AWB (Auto White Balance).
Set mode to one of the PWC_WB_* values above.
*red and *blue are the respective gains of these colour components inside
the camera; range 0..65535
When 'mode' == PWC_WB_MANUAL, 'manual_red' and 'manual_blue' are set or read;
otherwise undefined.
'read_red' and 'read_blue' are read-only.
*/
struct pwc_whitebalance
{
int mode;
int manual_red, manual_blue; /* R/W */
int read_red, read_blue; /* R/O */
};
/*
'control_speed' and 'control_delay' are used in automatic whitebalance mode,
and tell the camera how fast it should react to changes in lighting, and
with how much delay. Valid values are 0..65535.
*/
struct pwc_wb_speed
{
int control_speed;
int control_delay;
};
/* Used with VIDIOCPWC[SG]LED */
struct pwc_leds
{
int led_on; /* Led on-time; range = 0..25000 */
int led_off; /* Led off-time; range = 0..25000 */
};
/* Image size (used with GREALSIZE) */
struct pwc_imagesize
{
int width;
int height;
};
/* Defines and structures for Motorized Pan & Tilt */
#define PWC_MPT_PAN 0x01
#define PWC_MPT_TILT 0x02
#define PWC_MPT_TIMEOUT 0x04 /* for status */
/* Set angles; when absolute != 0, the angle is absolute and the
driver calculates the relative offset for you. This can only
be used with VIDIOCPWCSANGLE; VIDIOCPWCGANGLE always returns
absolute angles.
*/
struct pwc_mpt_angles
{
int absolute; /* write-only */
int pan; /* degrees * 100 */
int tilt; /* degress * 100 */
};
/* Range of angles of the camera, both horizontally and vertically.
*/
struct pwc_mpt_range
{
int pan_min, pan_max; /* degrees * 100 */
int tilt_min, tilt_max;
};
struct pwc_mpt_status
{
int status;
int time_pan;
int time_tilt;
};
/* This is used for out-of-kernel decompression. With it, you can get
all the necessary information to initialize and use the decompressor
routines in standalone applications.
*/
struct pwc_video_command
{
int type; /* camera type (645, 675, 730, etc.) */
int release; /* release number */
int size; /* one of PSZ_* */
int alternate;
int command_len; /* length of USB video command */
unsigned char command_buf[13]; /* Actual USB video command */
int bandlength; /* >0 = compressed */
int frame_size; /* Size of one (un)compressed frame */
};
/* Flags for PWCX subroutines. Not all modules honour all flags. */
#define PWCX_FLAG_PLANAR 0x0001
#define PWCX_FLAG_BAYER 0x0008
/* IOCTL definitions */
/* Restore user settings */
#define VIDIOCPWCRUSER _IO('v', 192)
/* Save user settings */
#define VIDIOCPWCSUSER _IO('v', 193)
/* Restore factory settings */
#define VIDIOCPWCFACTORY _IO('v', 194)
/* You can manipulate the compression factor. A compression preference of 0
means use uncompressed modes when available; 1 is low compression, 2 is
medium and 3 is high compression preferred. Of course, the higher the
compression, the lower the bandwidth used but more chance of artefacts
in the image. The driver automatically chooses a higher compression when
the preferred mode is not available.
*/
/* Set preferred compression quality (0 = uncompressed, 3 = highest compression) */
#define VIDIOCPWCSCQUAL _IOW('v', 195, int)
/* Get preferred compression quality */
#define VIDIOCPWCGCQUAL _IOR('v', 195, int)
/* Retrieve serial number of camera */
#define VIDIOCPWCGSERIAL _IOR('v', 198, struct pwc_serial)
/* This is a probe function; since so many devices are supported, it
becomes difficult to include all the names in programs that want to
check for the enhanced Philips stuff. So in stead, try this PROBE;
it returns a structure with the original name, and the corresponding
Philips type.
To use, fill the structure with zeroes, call PROBE and if that succeeds,
compare the name with that returned from VIDIOCGCAP; they should be the
same. If so, you can be assured it is a Philips (OEM) cam and the type
is valid.
*/
#define VIDIOCPWCPROBE _IOR('v', 199, struct pwc_probe)
/* Set AGC (Automatic Gain Control); int < 0 = auto, 0..65535 = fixed */
#define VIDIOCPWCSAGC _IOW('v', 200, int)
/* Get AGC; int < 0 = auto; >= 0 = fixed, range 0..65535 */
#define VIDIOCPWCGAGC _IOR('v', 200, int)
/* Set shutter speed; int < 0 = auto; >= 0 = fixed, range 0..65535 */
#define VIDIOCPWCSSHUTTER _IOW('v', 201, int)
/* Color compensation (Auto White Balance) */
#define VIDIOCPWCSAWB _IOW('v', 202, struct pwc_whitebalance)
#define VIDIOCPWCGAWB _IOR('v', 202, struct pwc_whitebalance)
/* Auto WB speed */
#define VIDIOCPWCSAWBSPEED _IOW('v', 203, struct pwc_wb_speed)
#define VIDIOCPWCGAWBSPEED _IOR('v', 203, struct pwc_wb_speed)
/* LEDs on/off/blink; int range 0..65535 */
#define VIDIOCPWCSLED _IOW('v', 205, struct pwc_leds)
#define VIDIOCPWCGLED _IOR('v', 205, struct pwc_leds)
/* Contour (sharpness); int < 0 = auto, 0..65536 = fixed */
#define VIDIOCPWCSCONTOUR _IOW('v', 206, int)
#define VIDIOCPWCGCONTOUR _IOR('v', 206, int)
/* Backlight compensation; 0 = off, otherwise on */
#define VIDIOCPWCSBACKLIGHT _IOW('v', 207, int)
#define VIDIOCPWCGBACKLIGHT _IOR('v', 207, int)
/* Flickerless mode; = 0 off, otherwise on */
#define VIDIOCPWCSFLICKER _IOW('v', 208, int)
#define VIDIOCPWCGFLICKER _IOR('v', 208, int)
/* Dynamic noise reduction; 0 off, 3 = high noise reduction */
#define VIDIOCPWCSDYNNOISE _IOW('v', 209, int)
#define VIDIOCPWCGDYNNOISE _IOR('v', 209, int)
/* Real image size as used by the camera; tells you whether or not there's a gray border around the image */
#define VIDIOCPWCGREALSIZE _IOR('v', 210, struct pwc_imagesize)
/* Motorized pan & tilt functions */
#define VIDIOCPWCMPTRESET _IOW('v', 211, int)
#define VIDIOCPWCMPTGRANGE _IOR('v', 211, struct pwc_mpt_range)
#define VIDIOCPWCMPTSANGLE _IOW('v', 212, struct pwc_mpt_angles)
#define VIDIOCPWCMPTGANGLE _IOR('v', 212, struct pwc_mpt_angles)
#define VIDIOCPWCMPTSTATUS _IOR('v', 213, struct pwc_mpt_status)
/* Get the USB set-video command; needed for initializing libpwcx */
#define VIDIOCPWCGVIDCMD _IOR('v', 215, struct pwc_video_command)
struct pwc_table_init_buffer {
int len;
char *buffer;
};
#define VIDIOCPWCGVIDTABLE _IOR('v', 216, struct pwc_table_init_buffer)
/*
* This is private command used when communicating with v4l2.
* In the future all private ioctl will be remove/replace to
* use interface offer by v4l2.
*/
#define V4L2_CID_PRIVATE_SAVE_USER (V4L2_CID_PRIVATE_BASE + 0)
#define V4L2_CID_PRIVATE_RESTORE_USER (V4L2_CID_PRIVATE_BASE + 1)
#define V4L2_CID_PRIVATE_RESTORE_FACTORY (V4L2_CID_PRIVATE_BASE + 2)
#define V4L2_CID_PRIVATE_COLOUR_MODE (V4L2_CID_PRIVATE_BASE + 3)
#define V4L2_CID_PRIVATE_AUTOCONTOUR (V4L2_CID_PRIVATE_BASE + 4)
#define V4L2_CID_PRIVATE_CONTOUR (V4L2_CID_PRIVATE_BASE + 5)
#define V4L2_CID_PRIVATE_BACKLIGHT (V4L2_CID_PRIVATE_BASE + 6)
#define V4L2_CID_PRIVATE_FLICKERLESS (V4L2_CID_PRIVATE_BASE + 7)
#define V4L2_CID_PRIVATE_NOISE_REDUCTION (V4L2_CID_PRIVATE_BASE + 8)
struct pwc_raw_frame {
__le16 type; /* type of the webcam */
__le16 vbandlength; /* Size of 4lines compressed (used by the decompressor) */
__u8 cmd[4]; /* the four byte of the command (in case of nala,
only the first 3 bytes is filled) */
__u8 rawframe[0]; /* frame_size = H/4*vbandlength */
} __attribute__ ((packed));
#endif
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