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/* Driver for Philips webcam
Functions that send various control messages to the webcam, including
video modes.
(C) 1999-2001 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
/* 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 READ_RAW_Y_MEAN_FORMATTER 0x3100
#define SET_POWER_SAVE_MODE_FORMATTER 0x3200
#define MIRROR_IMAGE_FORMATTER 0x3300
#define LED_FORMATTER 0x3400
/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
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 choosen (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"
};
/****************************************************************************/
#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 += sprintf(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)
return ret;
if (pEntry->compressed)
pdev->decompressor->init(pdev->release, buf, pdev->decompress_data);
/* 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->init(pdev->release, buf, pdev->decompress_data);
/* 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;
int fps, ret;
unsigned char buf[12];
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 = &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->init(pdev->release, buf, pdev->decompress_data);
/* 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 (pChoose->bandlength > 0)
pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
else
pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
pdev->frame_size += (pdev->frame_header_size + pdev->frame_trailer_size);
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;
size = pwc_decode_size(pdev, width, height);
if (size < 0) {
Debug("Could not find suitable size.\n");
return -ERANGE;
}
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 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;
pwc_set_image_buffer_size(pdev);
Trace(TRACE_SIZE, "Set viewport to %dx%d, image size is %dx%d, palette = %d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y, pdev->vpalette);
return 0;
}
void pwc_set_image_buffer_size(struct pwc_device *pdev)
{
int factor, i, filler = 0;
switch(pdev->vpalette) {
case VIDEO_PALETTE_RGB32 | 0x80:
case VIDEO_PALETTE_RGB32:
factor = 16;
filler = 0;
break;
case VIDEO_PALETTE_RGB24 | 0x80:
case VIDEO_PALETTE_RGB24:
factor = 12;
filler = 0;
break;
case VIDEO_PALETTE_YUYV:
case VIDEO_PALETTE_YUV422:
factor = 8;
filler = 128;
break;
case VIDEO_PALETTE_YUV420:
case VIDEO_PALETTE_YUV420P:
factor = 6;
filler = 128;
break;
#if PWC_DEBUG
case VIDEO_PALETTE_RAW:
pdev->image.size = pdev->frame_size;
pdev->view.size = pdev->frame_size;
return;
break;
#endif
default:
factor = 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 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_STATUS_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_STATUS_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);
}
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 usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0),
SET_STATUS_CTL,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
LED_FORMATTER,
pdev->vcinterface,
&buf, 2, HZ / 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 = usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0),
GET_STATUS_CTL,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
LED_FORMATTER,
pdev->vcinterface,
&buf, 2, HZ / 2);
if (ret < 0)
return ret;
*on_value = buf[0] * 100;
*off_value = buf[1] * 100;
return 0;
}
/* End of Add-Ons */
/* ************************************************* */
int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
{
switch(cmd) {
case VIDIOCPWCRUSER:
{
if (pwc_restore_user(pdev))
return -EINVAL;
break;
}
case VIDIOCPWCSUSER:
{
if (pwc_save_user(pdev))
return -EINVAL;
break;
}
case VIDIOCPWCFACTORY:
{
if (pwc_restore_factory(pdev))
return -EINVAL;
break;
}
case VIDIOCPWCSCQUAL:
{
int qual, ret;
if (copy_from_user(&qual, arg, sizeof(int)))
return -EFAULT;
if (qual < 0 || qual > 3)
return -EINVAL;
ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, qual, pdev->vsnapshot);
if (ret < 0)
return ret;
pdev->vcompression = qual;
break;
}
case VIDIOCPWCGCQUAL:
{
if (copy_to_user(arg, &pdev->vcompression, sizeof(int)))
return -EFAULT;
break;
}
case VIDIOCPWCSAGC:
{
int agc;
if (copy_from_user(&agc, arg, sizeof(agc)))
return -EFAULT;
else {
if (pwc_set_agc(pdev, agc < 0 ? 1 : 0, agc))
return -EINVAL;
}
break;
}
case VIDIOCPWCGAGC:
{
int agc;
if (pwc_get_agc(pdev, &agc))
return -EINVAL;
if (copy_to_user(arg, &agc, sizeof(agc)))
return -EFAULT;
break;
}
case VIDIOCPWCSSHUTTER:
{
int shutter_speed, ret;
if (copy_from_user(&shutter_speed, arg, sizeof(shutter_speed)))
return -EFAULT;
else {
ret = pwc_set_shutter_speed(pdev, shutter_speed < 0 ? 1 : 0, shutter_speed);
if (ret < 0)
return ret;
}
break;
}
/* ************************************************* */
/* Begin of Add-Ons for color compensation */
case VIDIOCPWCSAWB:
{
struct pwc_whitebalance wb;
int ret;
if (copy_from_user(&wb, arg, sizeof(wb)))
return -EFAULT;
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;
memset(&wb, 0, sizeof(wb));
wb.mode = pwc_get_awb(pdev);
if (wb.mode < 0)
return -EINVAL;
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);
}
if (copy_to_user(arg, &wb, sizeof(wb)))
return -EFAULT;
break;
}
case VIDIOCPWCSLED:
{
int ret;
struct pwc_leds leds;
if (copy_from_user(&leds, arg, sizeof(leds)))
return -EFAULT;
ret = pwc_set_leds(pdev, leds.led_on, leds.led_off);
if (ret<0)
return ret;
break;
}
case VIDIOCPWCGLED:
{
int led;
struct pwc_leds leds;
led = pwc_get_leds(pdev, &leds.led_on, &leds.led_off);
if (led < 0)
return -EINVAL;
if (copy_to_user(arg, &leds, sizeof(leds)))
return -EFAULT;
break;
}
/* End of Add-Ons */
/* ************************************************* */
default:
return -ENOIOCTLCMD;
break;
}
return 0;
}
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