/* Driver for Philips webcam
Functions that send various control messages to the webcam, including
video modes.
(C) 1999-2003 Nemosoft Unv. (webcam@smcc.demon.nl)
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
*/
/*
Changes
2001/08/03 Alvarado Added methods for changing white balance and
red/green gains
*/
/* Control functions for the cam; brightness, contrast, video mode, etc. */
#ifdef __KERNEL__
#include <asm/uaccess.h>
#endif
#include <asm/errno.h>
#include "pwc.h"
#include "pwc-ioctl.h"
#include "pwc-uncompress.h"
/* Request types: video */
#define SET_LUM_CTL 0x01
#define GET_LUM_CTL 0x02
#define SET_CHROM_CTL 0x03
#define GET_CHROM_CTL 0x04
#define SET_STATUS_CTL 0x05
#define GET_STATUS_CTL 0x06
#define SET_EP_STREAM_CTL 0x07
#define GET_EP_STREAM_CTL 0x08
#define SET_MPT_CTL 0x0D
#define GET_MPT_CTL 0x0E
/* Selectors for the Luminance controls [GS]ET_LUM_CTL */
#define AGC_MODE_FORMATTER 0x2000
#define PRESET_AGC_FORMATTER 0x2100
#define SHUTTER_MODE_FORMATTER 0x2200
#define PRESET_SHUTTER_FORMATTER 0x2300
#define PRESET_CONTOUR_FORMATTER 0x2400
#define AUTO_CONTOUR_FORMATTER 0x2500
#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
#define CONTRAST_FORMATTER 0x2700
#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
#define FLICKERLESS_MODE_FORMATTER 0x2900
#define AE_CONTROL_SPEED 0x2A00
#define BRIGHTNESS_FORMATTER 0x2B00
#define GAMMA_FORMATTER 0x2C00
/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
#define WB_MODE_FORMATTER 0x1000
#define AWB_CONTROL_SPEED_FORMATTER 0x1100
#define AWB_CONTROL_DELAY_FORMATTER 0x1200
#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
#define COLOUR_MODE_FORMATTER 0x1500
#define SATURATION_MODE_FORMATTER1 0x1600
#define SATURATION_MODE_FORMATTER2 0x1700
/* Selectors for the Status controls [GS]ET_STATUS_CTL */
#define SAVE_USER_DEFAULTS_FORMATTER 0x0200
#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
#define READ_AGC_FORMATTER 0x0500
#define READ_SHUTTER_FORMATTER 0x0600
#define READ_RED_GAIN_FORMATTER 0x0700
#define READ_BLUE_GAIN_FORMATTER 0x0800
#define SENSOR_TYPE_FORMATTER1 0x0C00
#define READ_RAW_Y_MEAN_FORMATTER 0x3100
#define SET_POWER_SAVE_MODE_FORMATTER 0x3200
#define MIRROR_IMAGE_FORMATTER 0x3300
#define LED_FORMATTER 0x3400
#define SENSOR_TYPE_FORMATTER2 0x3700
/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
#define PT_RELATIVE_CONTROL_FORMATTER 0x01
#define PT_RESET_CONTROL_FORMATTER 0x02
#define PT_STATUS_FORMATTER 0x03
static char *size2name
[PSZ_MAX
] =
{
"subQCIF",
"QSIF",
"QCIF",
"SIF",
"CIF",
"VGA",
};
/********/
/* Entries for the Nala (645/646) camera; the Nala doesn't have compression
preferences, so you either get compressed or non-compressed streams.
An alternate value of 0 means this mode is not available at all.
*/
struct Nala_table_entry
{
char alternate
; /* USB alternate setting */
int compressed
; /* Compressed yes/no */
unsigned char mode
[3]; /* precomputed mode table */
};
static struct Nala_table_entry Nala_table
[PSZ_MAX
][8] =
{
#include "pwc_nala.h"
};
/* This tables contains entries for the 675/680/690 (Timon) camera, with
4 different qualities (no compression, low, medium, high).
It lists the bandwidth requirements for said mode by its alternate interface
number. An alternate of 0 means that the mode is unavailable.
There are 6 * 4 * 4 entries:
6 different resolutions subqcif, qsif, qcif, sif, cif, vga
6 framerates: 5, 10, 15, 20, 25, 30
4 compression modi: none, low, medium, high
When an uncompressed mode is not available, the next available compressed mode
will be chosen (unless the decompressor is absent). Sometimes there are only
1 or 2 compressed modes available; in that case entries are duplicated.
*/
struct Timon_table_entry
{
char alternate
; /* USB alternate interface */
unsigned short packetsize
; /* Normal packet size */
unsigned short bandlength
; /* Bandlength when decompressing */
unsigned char mode
[13]; /* precomputed mode settings for cam */
};
static struct Timon_table_entry Timon_table
[PSZ_MAX
][6][4] =
{
#include "pwc_timon.h"
};
/* Entries for the Kiara (730/740/750) camera */
struct Kiara_table_entry
{
char alternate
; /* USB alternate interface */
unsigned short packetsize
; /* Normal packet size */
unsigned short bandlength
; /* Bandlength when decompressing */
unsigned char mode
[12]; /* precomputed mode settings for cam */
};
static struct Kiara_table_entry Kiara_table
[PSZ_MAX
][6][4] =
{
#include "pwc_kiara.h"
};
/****************************************************************************/
#define SendControlMsg(request, value, buflen) \
usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
request, \
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
value, \
pdev->vcinterface, \
&buf, buflen, HZ / 2)
#define RecvControlMsg(request, value, buflen) \
usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
request, \
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
value, \
pdev->vcinterface, \
&buf, buflen, HZ / 2)
#if PWC_DEBUG
void pwc_hexdump
(void *p
, int len
)
{
int i
;
unsigned char *s
;
char buf
[100], *d
;
s
= (unsigned char *)p
;
d
= buf
;
*d
= '\0';
Debug
("Doing hexdump @ %p, %d bytes.\n", p
, len
);
for (i
= 0; i
< len
; i
++) {
d
+= sprintf26
(d
, "%02X ", *s
++);
if ((i
& 0xF) == 0xF) {
Debug
("%s\n", buf
);
d
= buf
;
*d
= '\0';
}
}
if ((i
& 0xF) != 0)
Debug
("%s\n", buf
);
}
#endif
static inline int send_video_command
(struct usb_device
*udev
, int index
, void *buf
, int buflen
)
{
return usb_control_msg
(udev
,
usb_sndctrlpipe
(udev
, 0),
SET_EP_STREAM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
VIDEO_OUTPUT_CONTROL_FORMATTER
,
index
,
buf
, buflen
, HZ
);
}
static inline int set_video_mode_Nala
(struct pwc_device
*pdev
, int size
, int frames
)
{
unsigned char buf
[3];
int ret
, fps
;
struct Nala_table_entry
*pEntry
;
int frames2frames
[31] =
{ /* closest match of framerate */
0, 0, 0, 0, 4, /* 0-4 */
5, 5, 7, 7, 10, /* 5-9 */
10, 10, 12, 12, 15, /* 10-14 */
15, 15, 15, 20, 20, /* 15-19 */
20, 20, 20, 24, 24, /* 20-24 */
24, 24, 24, 24, 24, /* 25-29 */
24 /* 30 */
};
int frames2table
[31] =
{ 0, 0, 0, 0, 0, /* 0-4 */
1, 1, 1, 2, 2, /* 5-9 */
3, 3, 4, 4, 4, /* 10-14 */
5, 5, 5, 5, 5, /* 15-19 */
6, 6, 6, 6, 7, /* 20-24 */
7, 7, 7, 7, 7, /* 25-29 */
7 /* 30 */
};
if (size
< 0 || size
> PSZ_CIF
|| frames
< 4 || frames
> 25)
return -EINVAL
;
frames
= frames2frames
[frames
];
fps
= frames2table
[frames
];
pEntry
= &Nala_table
[size
][fps
];
if (pEntry
->alternate
== 0)
return -EINVAL
;
if (pEntry
->compressed
&& pdev
->decompressor
== NULL
)
return -ENOENT
; /* Not supported. */
memcpy(buf
, pEntry
->mode
, 3);
ret
= send_video_command
(pdev
->udev
, pdev
->vendpoint
, buf
, 3);
if (ret
< 0) {
Debug
("Failed to send video command... %d\n", ret
);
return ret
;
}
if (pEntry
->compressed
&& pdev
->decompressor
!= 0 && pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
pdev
->decompressor
->init
(pdev
->type
, pdev
->release
, buf
, pdev
->decompress_data
);
pdev
->cmd_len
= 3;
memcpy(pdev
->cmd_buf
, buf
, 3);
/* Set various parameters */
pdev
->vframes
= frames
;
pdev
->vsize
= size
;
pdev
->valternate
= pEntry
->alternate
;
pdev
->image
= pwc_image_sizes
[size
];
pdev
->frame_size
= (pdev
->image.
x * pdev
->image.
y * 3) / 2;
if (pEntry
->compressed
) {
if (pdev
->release
< 5) { /* 4 fold compression */
pdev
->vbandlength
= 528;
pdev
->frame_size
/= 4;
}
else {
pdev
->vbandlength
= 704;
pdev
->frame_size
/= 3;
}
}
else
pdev
->vbandlength
= 0;
return 0;
}
static inline int set_video_mode_Timon
(struct pwc_device
*pdev
, int size
, int frames
, int compression
, int snapshot
)
{
unsigned char buf
[13];
struct Timon_table_entry
*pChoose
;
int ret
, fps
;
if (size
>= PSZ_MAX
|| frames
< 5 || frames
> 30 || compression
< 0 || compression
> 3)
return -EINVAL
;
if (size
== PSZ_VGA
&& frames
> 15)
return -EINVAL
;
fps
= (frames
/ 5) - 1;
/* Find a supported framerate with progressively higher compression ratios
if the preferred ratio is not available.
*/
pChoose
= NULL
;
if (pdev
->decompressor
== NULL
) {
#if PWC_DEBUG
Debug
("Trying to find uncompressed mode.\n");
#endif
pChoose
= &Timon_table
[size
][fps
][0];
}
else {
while (compression
<= 3) {
pChoose
= &Timon_table
[size
][fps
][compression
];
if (pChoose
->alternate
!= 0)
break;
compression
++;
}
}
if (pChoose
== NULL
|| pChoose
->alternate
== 0)
return -ENOENT
; /* Not supported. */
memcpy(buf
, pChoose
->mode
, 13);
if (snapshot
)
buf
[0] |= 0x80;
ret
= send_video_command
(pdev
->udev
, pdev
->vendpoint
, buf
, 13);
if (ret
< 0)
return ret
;
if (pChoose
->bandlength
> 0 && pdev
->decompressor
!= 0 && pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
pdev
->decompressor
->init
(pdev
->type
, pdev
->release
, buf
, pdev
->decompress_data
);
pdev
->cmd_len
= 13;
memcpy(pdev
->cmd_buf
, buf
, 13);
/* Set various parameters */
pdev
->vframes
= frames
;
pdev
->vsize
= size
;
pdev
->vsnapshot
= snapshot
;
pdev
->valternate
= pChoose
->alternate
;
pdev
->image
= pwc_image_sizes
[size
];
pdev
->vbandlength
= pChoose
->bandlength
;
if (pChoose
->bandlength
> 0)
pdev
->frame_size
= (pChoose
->bandlength
* pdev
->image.
y) / 4;
else
pdev
->frame_size
= (pdev
->image.
x * pdev
->image.
y * 12) / 8;
return 0;
}
static inline int set_video_mode_Kiara
(struct pwc_device
*pdev
, int size
, int frames
, int compression
, int snapshot
)
{
struct Kiara_table_entry
*pChoose
= 0;
int fps
, ret
;
unsigned char buf
[12];
struct Kiara_table_entry RawEntry
= {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
if (size
>= PSZ_MAX
|| frames
< 5 || frames
> 30 || compression
< 0 || compression
> 3)
return -EINVAL
;
if (size
== PSZ_VGA
&& frames
> 15)
return -EINVAL
;
fps
= (frames
/ 5) - 1;
/* special case: VGA @ 5 fps and snapshot is raw bayer mode */
if (size
== PSZ_VGA
&& frames
== 5 && snapshot
)
{
Info
("Choosing VGA/5 BAYER mode (%d).\n", pdev
->vpalette
);
pChoose
= &RawEntry
;
}
else
{
/* Find a supported framerate with progressively higher compression ratios
if the preferred ratio is not available.
Skip this step when using RAW modes.
*/
if (pdev
->decompressor
== NULL
&& pdev
->vpalette
!= VIDEO_PALETTE_RAW
) {
#if PWC_DEBUG
Debug
("Trying to find uncompressed mode.\n");
#endif
pChoose
= &Kiara_table
[size
][fps
][0];
}
else {
while (compression
<= 3) {
pChoose
= &Kiara_table
[size
][fps
][compression
];
if (pChoose
->alternate
!= 0)
break;
compression
++;
}
}
}
if (pChoose
== NULL
|| pChoose
->alternate
== 0)
return -ENOENT
; /* Not supported. */
/* usb_control_msg won't take staticly allocated arrays as argument?? */
memcpy(buf
, pChoose
->mode
, 12);
if (snapshot
)
buf
[0] |= 0x80;
/* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
ret
= send_video_command
(pdev
->udev
, 4 /* pdev->vendpoint */, buf
, 12);
if (ret
< 0)
return ret
;
if (pChoose
->bandlength
> 0 && pdev
->decompressor
!= 0 && pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
pdev
->decompressor
->init
(pdev
->type
, pdev
->release
, buf
, pdev
->decompress_data
);
pdev
->cmd_len
= 12;
memcpy(pdev
->cmd_buf
, buf
, 12);
/* All set and go */
pdev
->vframes
= frames
;
pdev
->vsize
= size
;
pdev
->vsnapshot
= snapshot
;
pdev
->valternate
= pChoose
->alternate
;
pdev
->image
= pwc_image_sizes
[size
];
pdev
->vbandlength
= pChoose
->bandlength
;
if (pdev
->vbandlength
> 0)
pdev
->frame_size
= (pdev
->vbandlength
* pdev
->image.
y) / 4;
else
pdev
->frame_size
= (pdev
->image.
x * pdev
->image.
y * 12) / 8;
return 0;
}
/**
@pdev: device structure
@width: viewport width
@height: viewport height
@frame: framerate, in fps
@compression: preferred compression ratio
@snapshot: snapshot mode or streaming
*/
int pwc_set_video_mode
(struct pwc_device
*pdev
, int width
, int height
, int frames
, int compression
, int snapshot
)
{
int ret
, size
;
Trace
(TRACE_FLOW
, "set_video_mode(%dx%d @ %d, palette %d).\n", width
, height
, frames
, pdev
->vpalette
);
size
= pwc_decode_size
(pdev
, width
, height
);
if (size
< 0) {
Debug
("Could not find suitable size.\n");
return -ERANGE
;
}
Debug
("decode_size = %d.\n", size
);
ret
= -EINVAL
;
switch(pdev
->type
) {
case 645:
case 646:
ret
= set_video_mode_Nala
(pdev
, size
, frames
);
break;
case 675:
case 680:
case 690:
ret
= set_video_mode_Timon
(pdev
, size
, frames
, compression
, snapshot
);
break;
case 720:
case 730:
case 740:
case 750:
ret
= set_video_mode_Kiara
(pdev
, size
, frames
, compression
, snapshot
);
break;
}
if (ret
< 0) {
if (ret
== -ENOENT
)
Info
("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name
[size
], frames
);
else {
Err
("Failed to set video mode %s@%d fps; return code = %d\n", size2name
[size
], frames
, ret
);
}
return ret
;
}
pdev
->view.
x = width
;
pdev
->view.
y = height
;
pdev
->frame_total_size
= pdev
->frame_size
+ pdev
->frame_header_size
+ pdev
->frame_trailer_size
;
pwc_set_image_buffer_size
(pdev
);
Trace
(TRACE_SIZE
, "Set viewport to %dx%d, image size is %dx%d.\n", width
, height
, pwc_image_sizes
[size
].
x, pwc_image_sizes
[size
].
y);
return 0;
}
void pwc_set_image_buffer_size
(struct pwc_device
*pdev
)
{
int i
, factor
= 0, filler
= 0;
/* for PALETTE_YUV420P */
switch(pdev
->vpalette
)
{
case VIDEO_PALETTE_YUV420P
:
factor
= 6;
filler
= 128;
break;
case VIDEO_PALETTE_RAW
:
factor
= 6; /* can be uncompressed YUV420P */
filler
= 0;
break;
}
/* Set sizes in bytes */
pdev
->image.
size = pdev
->image.
x * pdev
->image.
y * factor
/ 4;
pdev
->view.
size = pdev
->view.
x * pdev
->view.
y * factor
/ 4;
/* Align offset, or you'll get some very weird results in
YUV420 mode... x must be multiple of 4 (to get the Y's in
place), and y even (or you'll mixup U & V). This is less of a
problem for YUV420P.
*/
pdev
->offset.
x = ((pdev
->view.
x - pdev
->image.
x) / 2) & 0xFFFC;
pdev
->offset.
y = ((pdev
->view.
y - pdev
->image.
y) / 2) & 0xFFFE;
/* Fill buffers with gray or black */
for (i
= 0; i
< MAX_IMAGES
; i
++) {
if (pdev
->image_ptr
[i
] != NULL
)
memset(pdev
->image_ptr
[i
], filler
, pdev
->view.
size);
}
}
/* BRIGHTNESS */
int pwc_get_brightness
(struct pwc_device
*pdev
)
{
char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
BRIGHTNESS_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return buf
<< 9;
}
int pwc_set_brightness
(struct pwc_device
*pdev
, int value
)
{
char buf
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
buf
= (value
>> 9) & 0x7f;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
BRIGHTNESS_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
/* CONTRAST */
int pwc_get_contrast
(struct pwc_device
*pdev
)
{
char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
CONTRAST_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return buf
<< 10;
}
int pwc_set_contrast
(struct pwc_device
*pdev
, int value
)
{
char buf
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
buf
= (value
>> 10) & 0x3f;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
CONTRAST_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
/* GAMMA */
int pwc_get_gamma
(struct pwc_device
*pdev
)
{
char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
GAMMA_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return buf
<< 11;
}
int pwc_set_gamma
(struct pwc_device
*pdev
, int value
)
{
char buf
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
buf
= (value
>> 11) & 0x1f;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
GAMMA_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
/* SATURATION */
int pwc_get_saturation
(struct pwc_device
*pdev
)
{
char buf
;
int ret
;
if (pdev
->type
< 675)
return -1;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
pdev
->type
< 730 ? SATURATION_MODE_FORMATTER2
: SATURATION_MODE_FORMATTER1
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return 32768 + buf
* 327;
}
int pwc_set_saturation
(struct pwc_device
*pdev
, int value
)
{
char buf
;
if (pdev
->type
< 675)
return -EINVAL
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
/* saturation ranges from -100 to +100 */
buf
= (value
- 32768) / 327;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
pdev
->type
< 730 ? SATURATION_MODE_FORMATTER2
: SATURATION_MODE_FORMATTER1
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
/* AGC */
static inline int pwc_set_agc
(struct pwc_device
*pdev
, int mode
, int value
)
{
char buf
;
int ret
;
if (mode
)
buf
= 0x0; /* auto */
else
buf
= 0xff; /* fixed */
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AGC_MODE_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (!mode
&& ret
>= 0) {
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
buf
= (value
>> 10) & 0x3F;
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_AGC_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
if (ret
< 0)
return ret
;
return 0;
}
static inline int pwc_get_agc
(struct pwc_device
*pdev
, int *value
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AGC_MODE_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
if (buf
!= 0) { /* fixed */
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_AGC_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
if (buf
> 0x3F)
buf
= 0x3F;
*value
= (buf
<< 10);
}
else { /* auto */
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_STATUS_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
READ_AGC_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
/* Gah... this value ranges from 0x00 ... 0x9F */
if (buf
> 0x9F)
buf
= 0x9F;
*value
= -(48 + buf
* 409);
}
return 0;
}
static inline int pwc_set_shutter_speed
(struct pwc_device
*pdev
, int mode
, int value
)
{
char buf
[2];
int speed
, ret
;
if (mode
)
buf
[0] = 0x0; /* auto */
else
buf
[0] = 0xff; /* fixed */
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
SHUTTER_MODE_FORMATTER
,
pdev
->vcinterface
,
buf
, 1, HZ
/ 2);
if (!mode
&& ret
>= 0) {
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
switch(pdev
->type
) {
case 675:
case 680:
case 690:
/* speed ranges from 0x0 to 0x290 (656) */
speed
= (value
/ 100);
buf
[1] = speed
>> 8;
buf
[0] = speed
& 0xff;
break;
case 720:
case 730:
case 740:
case 750:
/* speed seems to range from 0x0 to 0xff */
buf
[1] = 0;
buf
[0] = value
>> 8;
break;
}
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_SHUTTER_FORMATTER
,
pdev
->vcinterface
,
&buf
, 2, HZ
/ 2);
}
return ret
;
}
/* POWER */
int pwc_camera_power
(struct pwc_device
*pdev
, int power
)
{
char buf
;
if (pdev
->type
< 675 || (pdev
->type
< 730 && pdev
->release
< 6))
return 0; /* Not supported by Nala or Timon < release 6 */
if (power
)
buf
= 0x00; /* active */
else
buf
= 0xFF; /* power save */
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_STATUS_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
SET_POWER_SAVE_MODE_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
/* private calls */
static inline int pwc_restore_user
(struct pwc_device
*pdev
)
{
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_STATUS_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
RESTORE_USER_DEFAULTS_FORMATTER
,
pdev
->vcinterface
,
NULL
, 0, HZ
/ 2);
}
static inline int pwc_save_user
(struct pwc_device
*pdev
)
{
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_STATUS_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
SAVE_USER_DEFAULTS_FORMATTER
,
pdev
->vcinterface
,
NULL
, 0, HZ
/ 2);
}
static inline int pwc_restore_factory
(struct pwc_device
*pdev
)
{
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_STATUS_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
RESTORE_FACTORY_DEFAULTS_FORMATTER
,
pdev
->vcinterface
,
NULL
, 0, HZ
/ 2);
}
/* ************************************************* */
/* Patch by Alvarado: (not in the original version */
/*
* the camera recognizes modes from 0 to 4:
*
* 00: indoor (incandescant lighting)
* 01: outdoor (sunlight)
* 02: fluorescent lighting
* 03: manual
* 04: auto
*/
static inline int pwc_set_awb
(struct pwc_device
*pdev
, int mode
)
{
char buf
;
int ret
;
if (mode
< 0)
mode
= 0;
if (mode
> 4)
mode
= 4;
buf
= mode
& 0x07; /* just the lowest three bits */
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
WB_MODE_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return 0;
}
static inline int pwc_get_awb
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
WB_MODE_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return buf
;
}
static inline int pwc_set_red_gain
(struct pwc_device
*pdev
, int value
)
{
unsigned char buf
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
/* only the msb are considered */
buf
= value
>> 8;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_MANUAL_RED_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
static inline int pwc_get_red_gain
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_MANUAL_RED_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
<< 8);
}
static inline int pwc_set_blue_gain
(struct pwc_device
*pdev
, int value
)
{
unsigned char buf
;
if (value
< 0)
value
= 0;
if (value
> 0xffff)
value
= 0xffff;
/* linear mapping of 0..0xffff to -0x80..0x7f */
buf
= (value
>> 8);
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_MANUAL_BLUE_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
static inline int pwc_get_blue_gain
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_MANUAL_BLUE_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
<< 8);
}
/* The following two functions are different, since they only read the
internal red/blue gains, which may be different from the manual
gains set or read above.
*/
static inline int pwc_read_red_gain
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_STATUS_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
READ_RED_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
<< 8);
}
static inline int pwc_read_blue_gain
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_STATUS_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
READ_BLUE_GAIN_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
<< 8);
}
static inline int pwc_set_wb_speed
(struct pwc_device
*pdev
, int speed
)
{
unsigned char buf
;
/* useful range is 0x01..0x20 */
buf
= speed
/ 0x7f0;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AWB_CONTROL_SPEED_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
static inline int pwc_get_wb_speed
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AWB_CONTROL_SPEED_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
* 0x7f0);
}
static inline int pwc_set_wb_delay
(struct pwc_device
*pdev
, int delay
)
{
unsigned char buf
;
/* useful range is 0x01..0x3F */
buf
= (delay
>> 10);
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_CHROM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AWB_CONTROL_DELAY_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
static inline int pwc_get_wb_delay
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_CHROM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AWB_CONTROL_DELAY_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return (buf
<< 10);
}
int pwc_set_leds
(struct pwc_device
*pdev
, int on_value
, int off_value
)
{
unsigned char buf
[2];
if (pdev
->type
< 730)
return 0;
on_value
/= 100;
off_value
/= 100;
if (on_value
< 0)
on_value
= 0;
if (on_value
> 0xff)
on_value
= 0xff;
if (off_value
< 0)
off_value
= 0;
if (off_value
> 0xff)
off_value
= 0xff;
buf
[0] = on_value
;
buf
[1] = off_value
;
return SendControlMsg
(SET_STATUS_CTL
, LED_FORMATTER
, 2);
}
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
= RecvControlMsg
(GET_STATUS_CTL
, LED_FORMATTER
, 2);
if (ret
< 0)
return ret
;
*on_value
= buf
[0] * 100;
*off_value
= buf
[1] * 100;
return 0;
}
static inline int pwc_set_contour
(struct pwc_device
*pdev
, int contour
)
{
unsigned char buf
;
int ret
;
if (contour
< 0)
buf
= 0xff; /* auto contour on */
else
buf
= 0x0; /* auto contour off */
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AUTO_CONTOUR_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
if (contour
< 0)
return 0;
if (contour
> 0xffff)
contour
= 0xffff;
buf
= (contour
>> 10); /* contour preset is [0..3f] */
ret
= usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_CONTOUR_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return 0;
}
static inline int pwc_get_contour
(struct pwc_device
*pdev
, int *contour
)
{
unsigned char buf
;
int ret
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
AUTO_CONTOUR_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
if (buf
== 0) {
/* auto mode off, query current preset value */
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
PRESET_CONTOUR_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
*contour
= (buf
<< 10);
}
else
*contour
= -1;
return 0;
}
static inline int pwc_set_backlight
(struct pwc_device
*pdev
, int backlight
)
{
unsigned char buf
;
if (backlight
)
buf
= 0xff;
else
buf
= 0x0;
return usb_control_msg
(pdev
->udev
, usb_sndctrlpipe
(pdev
->udev
, 0),
SET_LUM_CTL
,
USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
BACK_LIGHT_COMPENSATION_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
}
static inline int pwc_get_backlight
(struct pwc_device
*pdev
)
{
int ret
;
unsigned char buf
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_LUM_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
BACK_LIGHT_COMPENSATION_FORMATTER
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
return buf
;
}
static inline int pwc_set_flicker
(struct pwc_device
*pdev
, int flicker
)
{
unsigned char buf
;
if (flicker
)
buf
= 0xff;
else
buf
= 0x0;
return SendControlMsg
(SET_LUM_CTL
, FLICKERLESS_MODE_FORMATTER
, 1);
}
static inline int pwc_get_flicker
(struct pwc_device
*pdev
)
{
int ret
;
unsigned char buf
;
ret
= RecvControlMsg
(GET_LUM_CTL
, FLICKERLESS_MODE_FORMATTER
, 1);
if (ret
< 0)
return ret
;
return buf
;
}
static inline int pwc_set_dynamic_noise
(struct pwc_device
*pdev
, int noise
)
{
unsigned char buf
;
if (noise
< 0)
noise
= 0;
if (noise
> 3)
noise
= 3;
buf
= noise
;
return SendControlMsg
(SET_LUM_CTL
, DYNAMIC_NOISE_CONTROL_FORMATTER
, 1);
}
static inline int pwc_get_dynamic_noise
(struct pwc_device
*pdev
)
{
int ret
;
unsigned char buf
;
ret
= RecvControlMsg
(GET_LUM_CTL
, DYNAMIC_NOISE_CONTROL_FORMATTER
, 1);
if (ret
< 0)
return ret
;
return buf
;
}
int pwc_mpt_reset
(struct pwc_device
*pdev
, int flags
)
{
unsigned char buf
;
buf
= flags
& 0x03; // only lower two bits are currently used
return SendControlMsg
(SET_MPT_CTL
, PT_RESET_CONTROL_FORMATTER
, 1);
}
static inline int pwc_mpt_set_angle
(struct pwc_device
*pdev
, int pan
, int tilt
)
{
unsigned char buf
[4];
/* set new relative angle; angles are expressed in degrees * 100,
but cam as .5 degree resolution, hence devide 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;
return SendControlMsg
(SET_MPT_CTL
, PT_RELATIVE_CONTROL_FORMATTER
, 4);
}
static inline int pwc_mpt_get_status
(struct pwc_device
*pdev
, struct pwc_mpt_status
*status
)
{
int ret
;
unsigned char buf
[5];
ret
= RecvControlMsg
(GET_MPT_CTL
, PT_STATUS_FORMATTER
, 5);
if (ret
< 0)
return ret
;
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];
return 0;
}
int pwc_get_cmos_sensor
(struct pwc_device
*pdev
)
{
unsigned char buf
;
int ret
= -1, request
;
if (pdev
->type
< 675)
request
= SENSOR_TYPE_FORMATTER1
;
else if (pdev
->type
< 730)
return -1; /* The Vesta series doesn't have this call */
else
request
= SENSOR_TYPE_FORMATTER2
;
ret
= usb_control_msg
(pdev
->udev
, usb_rcvctrlpipe
(pdev
->udev
, 0),
GET_STATUS_CTL
,
USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
request
,
pdev
->vcinterface
,
&buf
, 1, HZ
/ 2);
if (ret
< 0)
return ret
;
if (pdev
->type
< 675)
return buf
| 0x100;
else
return buf
;
}
/* End of Add-Ons */
/* ************************************************* */
int pwc_ioctl
(struct pwc_device
*pdev
, unsigned int cmd
, void *arg
)
{
int ret
= 0;
switch(cmd
) {
case VIDIOCPWCRUSER
:
{
if (pwc_restore_user
(pdev
))
ret
= -EINVAL
;
break;
}
case VIDIOCPWCSUSER
:
{
if (pwc_save_user
(pdev
))
ret
= -EINVAL
;
break;
}
case VIDIOCPWCFACTORY
:
{
if (pwc_restore_factory
(pdev
))
ret
= -EINVAL
;
break;
}
case VIDIOCPWCSCQUAL
:
{
int *qual
= arg
;
if (*qual
< 0 || *qual
> 3)
ret
= -EINVAL
;
else
ret
= pwc_try_video_mode
(pdev
, pdev
->view.
x, pdev
->view.
y, pdev
->vframes
, *qual
, pdev
->vsnapshot
);
if (ret
>= 0)
pdev
->vcompression
= *qual
;
break;
}
case VIDIOCPWCGCQUAL
:
{
int *qual
= arg
;
*qual
= pdev
->vcompression
;
break;
}
case VIDIOCPWCPROBE
:
{
struct pwc_probe
*probe
= arg
;
strcpy(probe
->name
, pdev
->vdev.
name);
probe
->type
= pdev
->type
;
break;
}
case VIDIOCPWCSAGC
:
{
int *agc
= arg
;
if (pwc_set_agc
(pdev
, *agc
< 0 ? 1 : 0, *agc
))
ret
= -EINVAL
;
break;
}
case VIDIOCPWCGAGC
:
{
int *agc
= arg
;
if (pwc_get_agc
(pdev
, agc
))
ret
= -EINVAL
;
break;
}
case VIDIOCPWCSSHUTTER
:
{
int *shutter_speed
= arg
;
ret
= pwc_set_shutter_speed
(pdev
, *shutter_speed
< 0 ? 1 : 0, *shutter_speed
);
break;
}
case VIDIOCPWCSAWB
:
{
struct pwc_whitebalance
*wb
= arg
;
ret
= pwc_set_awb
(pdev
, wb
->mode
);
if (ret
>= 0 && wb
->mode
== PWC_WB_MANUAL
) {
pwc_set_red_gain
(pdev
, wb
->manual_red
);
pwc_set_blue_gain
(pdev
, wb
->manual_blue
);
}
break;
}
case VIDIOCPWCGAWB
:
{
struct pwc_whitebalance
*wb
= arg
;
memset(wb
, 0, sizeof(*wb
));
wb
->mode
= pwc_get_awb
(pdev
);
if (wb
->mode
< 0)
ret
= -EINVAL
;
else {
if (wb
->mode
== PWC_WB_MANUAL
) {
wb
->manual_red
= pwc_get_red_gain
(pdev
);
wb
->manual_blue
= pwc_get_blue_gain
(pdev
);
}
if (wb
->mode
== PWC_WB_AUTO
) {
wb
->read_red
= pwc_read_red_gain
(pdev
);
wb
->read_blue
= pwc_read_blue_gain
(pdev
);
}
}
break;
}
case VIDIOCPWCSAWBSPEED
:
{
struct pwc_wb_speed
*wbs
= arg
;
if (wbs
->control_speed
> 0) {
ret
= pwc_set_wb_speed
(pdev
, wbs
->control_speed
);
}
if (wbs
->control_delay
> 0) {
ret
= pwc_set_wb_delay
(pdev
, wbs
->control_delay
);
}
break;
}
case VIDIOCPWCGAWBSPEED
:
{
struct pwc_wb_speed
*wbs
= arg
;
ret
= pwc_get_wb_speed
(pdev
);
if (ret
< 0)
break;
wbs
->control_speed
= ret
;
ret
= pwc_get_wb_delay
(pdev
);
if (ret
< 0)
break;
wbs
->control_delay
= ret
;
break;
}
case VIDIOCPWCSLED
:
{
struct pwc_leds
*leds
= arg
;
ret
= pwc_set_leds
(pdev
, leds
->led_on
, leds
->led_off
);
break;
}
case VIDIOCPWCGLED
:
{
struct pwc_leds
*leds
= arg
;
ret
= pwc_get_leds
(pdev
, &leds
->led_on
, &leds
->led_off
);
break;
}
case VIDIOCPWCSCONTOUR
:
{
int *contour
= arg
;
ret
= pwc_set_contour
(pdev
, *contour
);
break;
}
case VIDIOCPWCGCONTOUR
:
{
int *contour
= arg
;
ret
= pwc_get_contour
(pdev
, contour
);
break;
}
case VIDIOCPWCSBACKLIGHT
:
{
int *backlight
= arg
;
ret
= pwc_set_backlight
(pdev
, *backlight
);
break;
}
case VIDIOCPWCGBACKLIGHT
:
{
int *backlight
= arg
;
ret
= pwc_get_backlight
(pdev
);
if (ret
>= 0)
*backlight
= ret
;
break;
}
case VIDIOCPWCSFLICKER
:
{
int *flicker
= arg
;
ret
= pwc_set_flicker
(pdev
, *flicker
);
break;
}
case VIDIOCPWCGFLICKER
:
{
int *flicker
= arg
;
ret
= pwc_get_flicker
(pdev
);
if (ret
>= 0)
*flicker
= ret
;
break;
}
case VIDIOCPWCSDYNNOISE
:
{
int *dynnoise
= arg
;
ret
= pwc_set_dynamic_noise
(pdev
, *dynnoise
);
break;
}
case VIDIOCPWCGDYNNOISE
:
{
int *dynnoise
= arg
;
ret
= pwc_get_dynamic_noise
(pdev
);
if (ret
< 0)
break;
*dynnoise
= ret
;
break;
}
case VIDIOCPWCGREALSIZE
:
{
struct pwc_imagesize
*size
= arg
;
size
->width
= pdev
->image.
x;
size
->height
= pdev
->image.
y;
break;
}
case VIDIOCPWCMPTRESET
:
{
int *flags
= arg
;
if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
{
ret
= pwc_mpt_reset
(pdev
, *flags
);
if (ret
>= 0)
{
pdev
->pan_angle
= 0;
pdev
->tilt_angle
= 0;
}
}
else
{
ret
= -ENXIO
;
}
break;
}
case VIDIOCPWCMPTGRANGE
:
{
if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
{
memcpy(arg
, &pdev
->angle_range
, sizeof(struct pwc_mpt_range
));
}
else
{
ret
= -ENXIO
;
}
break;
}
case VIDIOCPWCMPTSANGLE
:
{
struct pwc_mpt_angles
*angles
= arg
;
int new_pan
, new_tilt
;
if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
{
/* The camera can only set relative angles, so
do some calculations when getting an absolute angle .
*/
if (angles
->absolute
)
{
new_pan
= angles
->pan
;
new_tilt
= angles
->tilt
;
}
else
{
new_pan
= pdev
->pan_angle
+ angles
->pan
;
new_tilt
= pdev
->tilt_angle
+ angles
->tilt
;
}
/* check absolute ranges */
if (new_pan
< pdev
->angle_range.
pan_min ||
new_pan
> pdev
->angle_range.
pan_max ||
new_tilt
< pdev
->angle_range.
tilt_min ||
new_tilt
> pdev
->angle_range.
tilt_max)
{
ret
= -ERANGE
;
}
else
{
/* go to relative range, check again */
new_pan
-= pdev
->pan_angle
;
new_tilt
-= pdev
->tilt_angle
;
/* angles are specified in degrees * 100, thus the limit = 36000 */
if (new_pan
< -36000 || new_pan
> 36000 || new_tilt
< -36000 || new_tilt
> 36000)
ret
= -ERANGE
;
}
if (ret
== 0) /* no errors so far */
{
ret
= pwc_mpt_set_angle
(pdev
, new_pan
, new_tilt
);
if (ret
>= 0)
{
pdev
->pan_angle
+= new_pan
;
pdev
->tilt_angle
+= new_tilt
;
}
if (ret
== -EPIPE
) /* stall -> out of range */
ret
= -ERANGE
;
}
}
else
{
ret
= -ENXIO
;
}
break;
}
case VIDIOCPWCMPTGANGLE
:
{
struct pwc_mpt_angles
*angles
= arg
;
if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
{
angles
->absolute
= 1;
angles
->pan
= pdev
->pan_angle
;
angles
->tilt
= pdev
->tilt_angle
;
}
else
{
ret
= -ENXIO
;
}
break;
}
case VIDIOCPWCMPTSTATUS
:
{
struct pwc_mpt_status
*status
= arg
;
if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
{
ret
= pwc_mpt_get_status
(pdev
, status
);
}
else
{
ret
= -ENXIO
;
}
break;
}
case VIDIOCPWCGVIDCMD
:
{
struct pwc_video_command cmd
;
cmd.
type = pdev
->type
;
cmd.
release = pdev
->release
;
cmd.
command_len = pdev
->cmd_len
;
memcpy(cmd.
command_buf, pdev
->cmd_buf
, pdev
->cmd_len
);
cmd.
bandlength = pdev
->vbandlength
;
cmd.
frame_size = pdev
->frame_size
;
if (copy_to_user
(arg
, &cmd
, sizeof(cmd
)))
ret
= -EFAULT
;
break;
}
default:
ret
= -ENOIOCTLCMD
;
break;
}
if (ret
> 0)
return 0;
return ret
;
}