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1542 lines
34 KiB
C
1542 lines
34 KiB
C
/* Driver for Philips webcam
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Functions that send various control messages to the webcam, including
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video modes.
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(C) 1999-2003 Nemosoft Unv.
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(C) 2004 Luc Saillard (luc@saillard.org)
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NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
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driver and thus may have bugs that are not present in the original version.
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Please send bug reports and support requests to <luc@saillard.org>.
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NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
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driver and thus may have bugs that are not present in the original version.
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Please send bug reports and support requests to <luc@saillard.org>.
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The decompression routines have been implemented by reverse-engineering the
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Nemosoft binary pwcx module. Caveat emptor.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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Changes
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2001/08/03 Alvarado Added methods for changing white balance and
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red/green gains
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*/
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/* Control functions for the cam; brightness, contrast, video mode, etc. */
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#ifdef __KERNEL__
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#include <asm/uaccess.h>
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#endif
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#include <asm/errno.h>
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#include "pwc.h"
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#include "pwc-ioctl.h"
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#include "pwc-uncompress.h"
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#include "pwc-kiara.h"
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#include "pwc-timon.h"
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/* Request types: video */
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#define SET_LUM_CTL 0x01
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#define GET_LUM_CTL 0x02
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#define SET_CHROM_CTL 0x03
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#define GET_CHROM_CTL 0x04
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#define SET_STATUS_CTL 0x05
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#define GET_STATUS_CTL 0x06
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#define SET_EP_STREAM_CTL 0x07
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#define GET_EP_STREAM_CTL 0x08
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#define SET_MPT_CTL 0x0D
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#define GET_MPT_CTL 0x0E
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/* Selectors for the Luminance controls [GS]ET_LUM_CTL */
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#define AGC_MODE_FORMATTER 0x2000
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#define PRESET_AGC_FORMATTER 0x2100
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#define SHUTTER_MODE_FORMATTER 0x2200
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#define PRESET_SHUTTER_FORMATTER 0x2300
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#define PRESET_CONTOUR_FORMATTER 0x2400
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#define AUTO_CONTOUR_FORMATTER 0x2500
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#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
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#define CONTRAST_FORMATTER 0x2700
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#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
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#define FLICKERLESS_MODE_FORMATTER 0x2900
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#define AE_CONTROL_SPEED 0x2A00
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#define BRIGHTNESS_FORMATTER 0x2B00
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#define GAMMA_FORMATTER 0x2C00
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/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
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#define WB_MODE_FORMATTER 0x1000
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#define AWB_CONTROL_SPEED_FORMATTER 0x1100
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#define AWB_CONTROL_DELAY_FORMATTER 0x1200
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#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
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#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
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#define COLOUR_MODE_FORMATTER 0x1500
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#define SATURATION_MODE_FORMATTER1 0x1600
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#define SATURATION_MODE_FORMATTER2 0x1700
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/* Selectors for the Status controls [GS]ET_STATUS_CTL */
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#define SAVE_USER_DEFAULTS_FORMATTER 0x0200
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#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
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#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
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#define READ_AGC_FORMATTER 0x0500
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#define READ_SHUTTER_FORMATTER 0x0600
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#define READ_RED_GAIN_FORMATTER 0x0700
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#define READ_BLUE_GAIN_FORMATTER 0x0800
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#define SENSOR_TYPE_FORMATTER1 0x0C00
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#define READ_RAW_Y_MEAN_FORMATTER 0x3100
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#define SET_POWER_SAVE_MODE_FORMATTER 0x3200
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#define MIRROR_IMAGE_FORMATTER 0x3300
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#define LED_FORMATTER 0x3400
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#define SENSOR_TYPE_FORMATTER2 0x3700
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/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
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#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
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/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
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#define PT_RELATIVE_CONTROL_FORMATTER 0x01
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#define PT_RESET_CONTROL_FORMATTER 0x02
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#define PT_STATUS_FORMATTER 0x03
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static const char *size2name[PSZ_MAX] =
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{
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"subQCIF",
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"QSIF",
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"QCIF",
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"SIF",
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"CIF",
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"VGA",
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};
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/********/
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/* Entries for the Nala (645/646) camera; the Nala doesn't have compression
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preferences, so you either get compressed or non-compressed streams.
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An alternate value of 0 means this mode is not available at all.
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*/
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struct Nala_table_entry {
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char alternate; /* USB alternate setting */
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int compressed; /* Compressed yes/no */
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unsigned char mode[3]; /* precomputed mode table */
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};
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static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
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{
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#include "pwc-nala.h"
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};
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/****************************************************************************/
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#define SendControlMsg(request, value, buflen) \
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usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
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request, \
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
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value, \
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pdev->vcinterface, \
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&buf, buflen, 500)
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#define RecvControlMsg(request, value, buflen) \
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usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
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request, \
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
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value, \
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pdev->vcinterface, \
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&buf, buflen, 500)
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#if PWC_DEBUG
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void pwc_hexdump(void *p, int len)
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{
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int i;
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unsigned char *s;
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char buf[100], *d;
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s = (unsigned char *)p;
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d = buf;
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*d = '\0';
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Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
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for (i = 0; i < len; i++) {
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d += sprintf(d, "%02X ", *s++);
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if ((i & 0xF) == 0xF) {
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Debug("%s\n", buf);
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d = buf;
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*d = '\0';
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}
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}
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if ((i & 0xF) != 0)
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Debug("%s\n", buf);
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}
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#endif
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static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
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{
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return usb_control_msg(udev,
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usb_sndctrlpipe(udev, 0),
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SET_EP_STREAM_CTL,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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VIDEO_OUTPUT_CONTROL_FORMATTER,
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index,
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buf, buflen, 1000);
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}
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static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
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{
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unsigned char buf[3];
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int ret, fps;
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struct Nala_table_entry *pEntry;
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int frames2frames[31] =
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{ /* closest match of framerate */
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0, 0, 0, 0, 4, /* 0-4 */
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5, 5, 7, 7, 10, /* 5-9 */
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10, 10, 12, 12, 15, /* 10-14 */
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15, 15, 15, 20, 20, /* 15-19 */
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20, 20, 20, 24, 24, /* 20-24 */
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24, 24, 24, 24, 24, /* 25-29 */
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24 /* 30 */
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};
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int frames2table[31] =
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{ 0, 0, 0, 0, 0, /* 0-4 */
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1, 1, 1, 2, 2, /* 5-9 */
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3, 3, 4, 4, 4, /* 10-14 */
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5, 5, 5, 5, 5, /* 15-19 */
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6, 6, 6, 6, 7, /* 20-24 */
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7, 7, 7, 7, 7, /* 25-29 */
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7 /* 30 */
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};
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if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
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return -EINVAL;
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frames = frames2frames[frames];
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fps = frames2table[frames];
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pEntry = &Nala_table[size][fps];
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if (pEntry->alternate == 0)
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return -EINVAL;
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if (pEntry->compressed)
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return -ENOENT; /* Not supported. */
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memcpy(buf, pEntry->mode, 3);
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ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
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if (ret < 0) {
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Debug("Failed to send video command... %d\n", ret);
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return ret;
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}
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if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
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{
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switch(pdev->type) {
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case 645:
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case 646:
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/* pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
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break;
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case 675:
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case 680:
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case 690:
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case 720:
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case 730:
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case 740:
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case 750:
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/* pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
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break;
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}
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}
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pdev->cmd_len = 3;
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memcpy(pdev->cmd_buf, buf, 3);
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/* Set various parameters */
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pdev->vframes = frames;
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pdev->vsize = size;
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pdev->valternate = pEntry->alternate;
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pdev->image = pwc_image_sizes[size];
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pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
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if (pEntry->compressed) {
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if (pdev->release < 5) { /* 4 fold compression */
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pdev->vbandlength = 528;
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pdev->frame_size /= 4;
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}
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else {
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pdev->vbandlength = 704;
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pdev->frame_size /= 3;
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}
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}
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else
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pdev->vbandlength = 0;
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return 0;
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}
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static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
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{
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unsigned char buf[13];
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const struct Timon_table_entry *pChoose;
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int ret, fps;
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if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
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return -EINVAL;
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if (size == PSZ_VGA && frames > 15)
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return -EINVAL;
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fps = (frames / 5) - 1;
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/* Find a supported framerate with progressively higher compression ratios
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if the preferred ratio is not available.
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*/
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pChoose = NULL;
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while (compression <= 3) {
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pChoose = &Timon_table[size][fps][compression];
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if (pChoose->alternate != 0)
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break;
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compression++;
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}
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if (pChoose == NULL || pChoose->alternate == 0)
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return -ENOENT; /* Not supported. */
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memcpy(buf, pChoose->mode, 13);
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if (snapshot)
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buf[0] |= 0x80;
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ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
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if (ret < 0)
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return ret;
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/* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
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pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
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pdev->cmd_len = 13;
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memcpy(pdev->cmd_buf, buf, 13);
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/* Set various parameters */
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pdev->vframes = frames;
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pdev->vsize = size;
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pdev->vsnapshot = snapshot;
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pdev->valternate = pChoose->alternate;
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pdev->image = pwc_image_sizes[size];
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pdev->vbandlength = pChoose->bandlength;
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if (pChoose->bandlength > 0)
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pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
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else
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pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
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return 0;
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}
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static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
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{
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const struct Kiara_table_entry *pChoose = NULL;
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int fps, ret;
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unsigned char buf[12];
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struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
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if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
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return -EINVAL;
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if (size == PSZ_VGA && frames > 15)
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return -EINVAL;
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fps = (frames / 5) - 1;
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/* special case: VGA @ 5 fps and snapshot is raw bayer mode */
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if (size == PSZ_VGA && frames == 5 && snapshot)
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{
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/* Only available in case the raw palette is selected or
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we have the decompressor available. This mode is
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only available in compressed form
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*/
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if (pdev->vpalette == VIDEO_PALETTE_RAW)
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{
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Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
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pChoose = &RawEntry;
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}
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else
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{
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Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
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}
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}
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else
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{
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/* Find a supported framerate with progressively higher compression ratios
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if the preferred ratio is not available.
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Skip this step when using RAW modes.
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*/
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while (compression <= 3) {
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pChoose = &Kiara_table[size][fps][compression];
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if (pChoose->alternate != 0)
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break;
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compression++;
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}
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}
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if (pChoose == NULL || pChoose->alternate == 0)
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return -ENOENT; /* Not supported. */
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Debug("Using alternate setting %d.\n", pChoose->alternate);
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/* usb_control_msg won't take staticly allocated arrays as argument?? */
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memcpy(buf, pChoose->mode, 12);
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if (snapshot)
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buf[0] |= 0x80;
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/* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
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ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
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if (ret < 0)
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return ret;
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/* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
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pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
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pdev->cmd_len = 12;
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memcpy(pdev->cmd_buf, buf, 12);
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/* All set and go */
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pdev->vframes = frames;
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pdev->vsize = size;
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pdev->vsnapshot = snapshot;
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pdev->valternate = pChoose->alternate;
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pdev->image = pwc_image_sizes[size];
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pdev->vbandlength = pChoose->bandlength;
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if (pdev->vbandlength > 0)
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pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
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else
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pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
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return 0;
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}
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static void pwc_set_image_buffer_size(struct pwc_device *pdev)
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{
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int i, factor = 0, filler = 0;
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|
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/* for PALETTE_YUV420P */
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switch(pdev->vpalette)
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{
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case VIDEO_PALETTE_YUV420P:
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factor = 6;
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filler = 128;
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break;
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case VIDEO_PALETTE_RAW:
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factor = 6; /* can be uncompressed YUV420P */
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filler = 0;
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break;
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}
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/* Set sizes in bytes */
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pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
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pdev->view.size = pdev->view.x * pdev->view.y * factor / 4;
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/* Align offset, or you'll get some very weird results in
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YUV420 mode... x must be multiple of 4 (to get the Y's in
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place), and y even (or you'll mixup U & V). This is less of a
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problem for YUV420P.
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*/
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pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
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pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
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|
|
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/* Fill buffers with gray or black */
|
|
for (i = 0; i < MAX_IMAGES; i++) {
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if (pdev->image_ptr[i] != NULL)
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|
memset(pdev->image_ptr[i], filler, pdev->view.size);
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|
}
|
|
}
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|
|
|
|
|
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/**
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|
@pdev: device structure
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@width: viewport width
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|
@height: viewport height
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@frame: framerate, in fps
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@compression: preferred compression ratio
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|
@snapshot: snapshot mode or streaming
|
|
*/
|
|
int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
|
|
{
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int ret, size;
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|
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Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
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|
size = pwc_decode_size(pdev, width, height);
|
|
if (size < 0) {
|
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Debug("Could not find suitable size.\n");
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return -ERANGE;
|
|
}
|
|
Debug("decode_size = %d.\n", size);
|
|
|
|
ret = -EINVAL;
|
|
switch(pdev->type) {
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|
case 645:
|
|
case 646:
|
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ret = set_video_mode_Nala(pdev, size, frames);
|
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break;
|
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|
|
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;
|
|
}
|
|
|
|
|
|
/* BRIGHTNESS */
|
|
|
|
int pwc_get_brightness(struct pwc_device *pdev)
|
|
{
|
|
char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
|
|
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 SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
|
|
}
|
|
|
|
/* CONTRAST */
|
|
|
|
int pwc_get_contrast(struct pwc_device *pdev)
|
|
{
|
|
char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
|
|
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 SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
|
|
}
|
|
|
|
/* GAMMA */
|
|
|
|
int pwc_get_gamma(struct pwc_device *pdev)
|
|
{
|
|
char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
|
|
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 SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
|
|
}
|
|
|
|
|
|
/* SATURATION */
|
|
|
|
int pwc_get_saturation(struct pwc_device *pdev)
|
|
{
|
|
char buf;
|
|
int ret;
|
|
|
|
if (pdev->type < 675)
|
|
return -1;
|
|
ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
|
|
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 SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
|
|
}
|
|
|
|
/* 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 = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
|
|
|
|
if (!mode && ret >= 0) {
|
|
if (value < 0)
|
|
value = 0;
|
|
if (value > 0xffff)
|
|
value = 0xffff;
|
|
buf = (value >> 10) & 0x3F;
|
|
ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
|
|
}
|
|
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 = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (buf != 0) { /* fixed */
|
|
ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (buf > 0x3F)
|
|
buf = 0x3F;
|
|
*value = (buf << 10);
|
|
}
|
|
else { /* auto */
|
|
ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
|
|
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 = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
|
|
|
|
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 = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 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 SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
|
|
}
|
|
|
|
|
|
|
|
/* private calls */
|
|
|
|
static inline int pwc_restore_user(struct pwc_device *pdev)
|
|
{
|
|
char buf; /* dummy */
|
|
return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
|
|
}
|
|
|
|
static inline int pwc_save_user(struct pwc_device *pdev)
|
|
{
|
|
char buf; /* dummy */
|
|
return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
|
|
}
|
|
|
|
static inline int pwc_restore_factory(struct pwc_device *pdev)
|
|
{
|
|
char buf; /* dummy */
|
|
return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
|
|
}
|
|
|
|
/* ************************************************* */
|
|
/* 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 = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
return 0;
|
|
}
|
|
|
|
static inline int pwc_get_awb(struct pwc_device *pdev)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
|
|
|
|
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 is considered */
|
|
buf = value >> 8;
|
|
return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
|
|
}
|
|
|
|
static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf << 8;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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;
|
|
/* only the msb is considered */
|
|
buf = value >> 8;
|
|
return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
|
|
}
|
|
|
|
static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf << 8;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* 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, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf << 8;
|
|
return 0;
|
|
}
|
|
|
|
static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf << 8;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
|
|
}
|
|
|
|
static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf * 0x7f0;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
|
|
}
|
|
|
|
static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
|
|
{
|
|
unsigned char buf;
|
|
int ret;
|
|
|
|
ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*value = buf << 10;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
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 = 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 = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (contour < 0)
|
|
return 0;
|
|
if (contour > 0xffff)
|
|
contour = 0xffff;
|
|
|
|
buf = (contour >> 10); /* contour preset is [0..3f] */
|
|
ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
|
|
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 = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (buf == 0) {
|
|
/* auto mode off, query current preset value */
|
|
ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
|
|
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 SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
|
|
}
|
|
|
|
static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
|
|
{
|
|
int ret;
|
|
unsigned char buf;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*backlight = buf;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 *flicker)
|
|
{
|
|
int ret;
|
|
unsigned char buf;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*flicker = buf;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 *noise)
|
|
{
|
|
int ret;
|
|
unsigned char buf;
|
|
|
|
ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
*noise = buf;
|
|
return 0;
|
|
}
|
|
|
|
static 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 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;
|
|
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, int *sensor)
|
|
{
|
|
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 = RecvControlMsg(GET_STATUS_CTL, request, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (pdev->type < 675)
|
|
*sensor = buf | 0x100;
|
|
else
|
|
*sensor = buf;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* 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 VIDIOCPWCGSERIAL:
|
|
{
|
|
struct pwc_serial *serial = arg;
|
|
strcpy(serial->serial, pdev->serial);
|
|
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(struct pwc_whitebalance));
|
|
wb->mode = pwc_get_awb(pdev);
|
|
if (wb->mode < 0)
|
|
ret = -EINVAL;
|
|
else {
|
|
if (wb->mode == PWC_WB_MANUAL) {
|
|
ret = pwc_get_red_gain(pdev, &wb->manual_red);
|
|
if (ret < 0)
|
|
break;
|
|
ret = pwc_get_blue_gain(pdev, &wb->manual_blue);
|
|
if (ret < 0)
|
|
break;
|
|
}
|
|
if (wb->mode == PWC_WB_AUTO) {
|
|
ret = pwc_read_red_gain(pdev, &wb->read_red);
|
|
if (ret < 0)
|
|
break;
|
|
ret = pwc_read_blue_gain(pdev, &wb->read_blue);
|
|
if (ret < 0)
|
|
break;
|
|
}
|
|
}
|
|
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, &wbs->control_speed);
|
|
if (ret < 0)
|
|
break;
|
|
ret = pwc_get_wb_delay(pdev, &wbs->control_delay);
|
|
if (ret < 0)
|
|
break;
|
|
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, backlight);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCSFLICKER:
|
|
{
|
|
int *flicker = arg;
|
|
ret = pwc_set_flicker(pdev, *flicker);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCGFLICKER:
|
|
{
|
|
int *flicker = arg;
|
|
ret = pwc_get_flicker(pdev, flicker);
|
|
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, dynnoise);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCGREALSIZE:
|
|
{
|
|
struct pwc_imagesize *size = arg;
|
|
size->width = pdev->image.x;
|
|
size->height = pdev->image.y;
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCMPTRESET:
|
|
{
|
|
if (pdev->features & FEATURE_MOTOR_PANTILT)
|
|
{
|
|
int *flags = arg;
|
|
|
|
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)
|
|
{
|
|
struct pwc_mpt_range *range = arg;
|
|
*range = pdev->angle_range;
|
|
}
|
|
else
|
|
{
|
|
ret = -ENXIO;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCMPTSANGLE:
|
|
{
|
|
int new_pan, new_tilt;
|
|
|
|
if (pdev->features & FEATURE_MOTOR_PANTILT)
|
|
{
|
|
struct pwc_mpt_angles *angles = arg;
|
|
/* 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:
|
|
{
|
|
|
|
if (pdev->features & FEATURE_MOTOR_PANTILT)
|
|
{
|
|
struct pwc_mpt_angles *angles = arg;
|
|
|
|
angles->absolute = 1;
|
|
angles->pan = pdev->pan_angle;
|
|
angles->tilt = pdev->tilt_angle;
|
|
}
|
|
else
|
|
{
|
|
ret = -ENXIO;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCMPTSTATUS:
|
|
{
|
|
if (pdev->features & FEATURE_MOTOR_PANTILT)
|
|
{
|
|
struct pwc_mpt_status *status = arg;
|
|
ret = pwc_mpt_get_status(pdev, status);
|
|
}
|
|
else
|
|
{
|
|
ret = -ENXIO;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VIDIOCPWCGVIDCMD:
|
|
{
|
|
struct pwc_video_command *cmd = arg;
|
|
|
|
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;
|
|
break;
|
|
}
|
|
/*
|
|
case VIDIOCPWCGVIDTABLE:
|
|
{
|
|
struct pwc_table_init_buffer *table = arg;
|
|
table->len = pdev->cmd_len;
|
|
memcpy(&table->buffer, pdev->decompress_data, pdev->decompressor->table_size);
|
|
break;
|
|
}
|
|
*/
|
|
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
if (ret > 0)
|
|
return 0;
|
|
return ret;
|
|
}
|
|
|
|
|
|
|