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gfiber / kernel / mindspeed / 87f7918552be2b3378f7e8944008bff102b3e59f / . / drivers / staging / media / easycap / easycap_ioctl.c
blob: c99addfb62428888bd089de3a96b43b6e20a8500 [file] [log] [blame]
/******************************************************************************
* *
* easycap_ioctl.c *
* *
******************************************************************************/
/*
*
* Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
*
*
* This 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.
*
* The software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*****************************************************************************/
#include <linux/version.h>
#include "easycap.h"
/*--------------------------------------------------------------------------*/
/*
* UNLESS THERE IS A PREMATURE ERROR RETURN THIS ROUTINE UPDATES THE
* FOLLOWING:
* peasycap->standard_offset
* peasycap->inputset[peasycap->input].standard_offset
* peasycap->fps
* peasycap->usec
* peasycap->tolerate
* peasycap->skip
*/
/*---------------------------------------------------------------------------*/
int adjust_standard(struct easycap *peasycap, v4l2_std_id std_id)
{
struct easycap_standard const *peasycap_standard;
u16 reg, set;
int ir, rc, need, k;
unsigned int itwas, isnow;
bool resubmit;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
peasycap_standard = &easycap_standard[0];
while (0xFFFF != peasycap_standard->mask) {
if (std_id == peasycap_standard->v4l2_standard.id)
break;
peasycap_standard++;
}
if (0xFFFF == peasycap_standard->mask) {
peasycap_standard = &easycap_standard[0];
while (0xFFFF != peasycap_standard->mask) {
if (std_id & peasycap_standard->v4l2_standard.id)
break;
peasycap_standard++;
}
}
if (0xFFFF == peasycap_standard->mask) {
SAM("ERROR: 0x%08X=std_id: standard not found\n",
(unsigned int)std_id);
return -EINVAL;
}
SAM("selected standard: %s\n",
&(peasycap_standard->v4l2_standard.name[0]));
if (peasycap->standard_offset == peasycap_standard - easycap_standard) {
SAM("requested standard already in effect\n");
return 0;
}
peasycap->standard_offset = peasycap_standard - easycap_standard;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].standard_offset_ok) {
peasycap->inputset[k].standard_offset =
peasycap->standard_offset;
}
}
if ((0 <= peasycap->input) && (INPUT_MANY > peasycap->input)) {
peasycap->inputset[peasycap->input].standard_offset =
peasycap->standard_offset;
peasycap->inputset[peasycap->input].standard_offset_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
peasycap->fps = peasycap_standard->v4l2_standard.frameperiod.denominator /
peasycap_standard->v4l2_standard.frameperiod.numerator;
switch (peasycap->fps) {
case 6:
case 30: {
peasycap->ntsc = true;
break;
}
case 5:
case 25: {
peasycap->ntsc = false;
break;
}
default: {
SAM("MISTAKE: %i=frames-per-second\n", peasycap->fps);
return -ENOENT;
}
}
JOM(8, "%i frames-per-second\n", peasycap->fps);
if (0x8000 & peasycap_standard->mask) {
peasycap->skip = 5;
peasycap->usec = 1000000 / (2 * (5 * peasycap->fps));
peasycap->tolerate = 1000 * (25 / (5 * peasycap->fps));
} else {
peasycap->skip = 0;
peasycap->usec = 1000000 / (2 * peasycap->fps);
peasycap->tolerate = 1000 * (25 / peasycap->fps);
}
if (peasycap->video_isoc_streaming) {
resubmit = true;
kill_video_urbs(peasycap);
} else
resubmit = false;
/*--------------------------------------------------------------------------*/
/*
* SAA7113H DATASHEET PAGE 44, TABLE 42
*/
/*--------------------------------------------------------------------------*/
need = 0;
itwas = 0;
reg = 0x00;
set = 0x00;
switch (peasycap_standard->mask & 0x000F) {
case NTSC_M_JP: {
reg = 0x0A;
set = 0x95;
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: cannot read SAA register 0x%02X\n", reg);
else
itwas = (unsigned int)ir;
rc = write_saa(peasycap->pusb_device, reg, set);
if (rc)
SAM("ERROR: failed to set SAA register "
"0x%02X to 0x%02X for JP standard\n", reg, set);
else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed "
"to 0x%02X\n", reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
reg = 0x0B;
set = 0x48;
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: cannot read SAA register 0x%02X\n", reg);
else
itwas = (unsigned int)ir;
rc = write_saa(peasycap->pusb_device, reg, set);
if (rc)
SAM("ERROR: failed to set SAA register 0x%02X to 0x%02X "
"for JP standard\n", reg, set);
else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed "
"to 0x%02X\n", reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
/*--------------------------------------------------------------------------*/
/*
* NOTE: NO break HERE: RUN ON TO NEXT CASE
*/
/*--------------------------------------------------------------------------*/
}
case NTSC_M:
case PAL_BGHIN: {
reg = 0x0E;
set = 0x01;
need = 1;
break;
}
case NTSC_N_443:
case PAL_60: {
reg = 0x0E;
set = 0x11;
need = 1;
break;
}
case NTSC_443:
case PAL_Nc: {
reg = 0x0E;
set = 0x21;
need = 1;
break;
}
case NTSC_N:
case PAL_M: {
reg = 0x0E;
set = 0x31;
need = 1;
break;
}
case SECAM: {
reg = 0x0E;
set = 0x51;
need = 1;
break;
}
default:
break;
}
/*--------------------------------------------------------------------------*/
if (need) {
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: failed to read SAA register 0x%02X\n", reg);
else
itwas = (unsigned int)ir;
rc = write_saa(peasycap->pusb_device, reg, set);
if (0 != write_saa(peasycap->pusb_device, reg, set)) {
SAM("ERROR: failed to set SAA register "
"0x%02X to 0x%02X for table 42\n", reg, set);
} else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed "
"to 0x%02X\n", reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
}
/*--------------------------------------------------------------------------*/
/*
* SAA7113H DATASHEET PAGE 41
*/
/*--------------------------------------------------------------------------*/
reg = 0x08;
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: failed to read SAA register 0x%02X "
"so cannot reset\n", reg);
else {
itwas = (unsigned int)ir;
if (peasycap_standard->mask & 0x0001)
set = itwas | 0x40 ;
else
set = itwas & ~0x40 ;
rc = write_saa(peasycap->pusb_device, reg, set);
if (rc)
SAM("ERROR: failed to set SAA register 0x%02X to 0x%02X\n",
reg, set);
else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed to 0x%02X\n",
reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
}
/*--------------------------------------------------------------------------*/
/*
* SAA7113H DATASHEET PAGE 51, TABLE 57
*/
/*---------------------------------------------------------------------------*/
reg = 0x40;
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: failed to read SAA register 0x%02X "
"so cannot reset\n", reg);
else {
itwas = (unsigned int)ir;
if (peasycap_standard->mask & 0x0001)
set = itwas | 0x80 ;
else
set = itwas & ~0x80 ;
rc = write_saa(peasycap->pusb_device, reg, set);
if (rc)
SAM("ERROR: failed to set SAA register 0x%02X to 0x%02X\n",
reg, set);
else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed to 0x%02X\n",
reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
}
/*--------------------------------------------------------------------------*/
/*
* SAA7113H DATASHEET PAGE 53, TABLE 66
*/
/*--------------------------------------------------------------------------*/
reg = 0x5A;
ir = read_saa(peasycap->pusb_device, reg);
if (0 > ir)
SAM("ERROR: failed to read SAA register 0x%02X but continuing\n", reg);
itwas = (unsigned int)ir;
if (peasycap_standard->mask & 0x0001)
set = 0x0A ;
else
set = 0x07 ;
if (0 != write_saa(peasycap->pusb_device, reg, set))
SAM("ERROR: failed to set SAA register 0x%02X to 0x%02X\n",
reg, set);
else {
isnow = (unsigned int)read_saa(peasycap->pusb_device, reg);
if (0 > ir)
JOM(8, "SAA register 0x%02X changed "
"to 0x%02X\n", reg, isnow);
else
JOM(8, "SAA register 0x%02X changed "
"from 0x%02X to 0x%02X\n", reg, itwas, isnow);
}
if (resubmit)
submit_video_urbs(peasycap);
return 0;
}
/*****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* THE ALGORITHM FOR RESPONDING TO THE VIDIO_S_FMT IOCTL REQUIRES
* A VALID VALUE OF peasycap->standard_offset, OTHERWISE -EBUSY IS RETURNED.
*
* PROVIDED THE ARGUMENT try IS false AND THERE IS NO PREMATURE ERROR RETURN
* THIS ROUTINE UPDATES THE FOLLOWING:
* peasycap->format_offset
* peasycap->inputset[peasycap->input].format_offset
* peasycap->pixelformat
* peasycap->height
* peasycap->width
* peasycap->bytesperpixel
* peasycap->byteswaporder
* peasycap->decimatepixel
* peasycap->frame_buffer_used
* peasycap->videofieldamount
* peasycap->offerfields
*
* IF SUCCESSFUL THE FUNCTION RETURNS THE OFFSET IN easycap_format[]
* IDENTIFYING THE FORMAT WHICH IS TO RETURNED TO THE USER.
* ERRORS RETURN A NEGATIVE NUMBER.
*/
/*--------------------------------------------------------------------------*/
int adjust_format(struct easycap *peasycap,
u32 width, u32 height, u32 pixelformat, int field, bool try)
{
struct easycap_format *peasycap_format, *peasycap_best_format;
u16 mask;
struct usb_device *p;
int miss, multiplier, best, k;
char bf[5], fo[32], *pc;
u32 uc;
bool resubmit;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (0 > peasycap->standard_offset) {
JOM(8, "%i=peasycap->standard_offset\n", peasycap->standard_offset);
return -EBUSY;
}
p = peasycap->pusb_device;
if (!p) {
SAM("ERROR: peaycap->pusb_device is NULL\n");
return -EFAULT;
}
pc = &bf[0];
uc = pixelformat;
memcpy((void *)pc, (void *)(&uc), 4);
bf[4] = 0;
mask = 0xFF & easycap_standard[peasycap->standard_offset].mask;
SAM("sought: %ix%i,%s(0x%08X),%i=field,0x%02X=std mask\n",
width, height, pc, pixelformat, field, mask);
switch (field) {
case V4L2_FIELD_ANY: {
strcpy(&fo[0], "V4L2_FIELD_ANY ");
break;
}
case V4L2_FIELD_NONE: {
strcpy(&fo[0], "V4L2_FIELD_NONE");
break;
}
case V4L2_FIELD_TOP: {
strcpy(&fo[0], "V4L2_FIELD_TOP");
break;
}
case V4L2_FIELD_BOTTOM: {
strcpy(&fo[0], "V4L2_FIELD_BOTTOM");
break;
}
case V4L2_FIELD_INTERLACED: {
strcpy(&fo[0], "V4L2_FIELD_INTERLACED");
break;
}
case V4L2_FIELD_SEQ_TB: {
strcpy(&fo[0], "V4L2_FIELD_SEQ_TB");
break;
}
case V4L2_FIELD_SEQ_BT: {
strcpy(&fo[0], "V4L2_FIELD_SEQ_BT");
break;
}
case V4L2_FIELD_ALTERNATE: {
strcpy(&fo[0], "V4L2_FIELD_ALTERNATE");
break;
}
case V4L2_FIELD_INTERLACED_TB: {
strcpy(&fo[0], "V4L2_FIELD_INTERLACED_TB");
break;
}
case V4L2_FIELD_INTERLACED_BT: {
strcpy(&fo[0], "V4L2_FIELD_INTERLACED_BT");
break;
}
default: {
strcpy(&fo[0], "V4L2_FIELD_... UNKNOWN ");
break;
}
}
SAM("sought: %s\n", &fo[0]);
if (V4L2_FIELD_ANY == field) {
field = V4L2_FIELD_NONE;
SAM("prefer: V4L2_FIELD_NONE=field, was V4L2_FIELD_ANY\n");
}
peasycap_best_format = NULL;
peasycap_format = &easycap_format[0];
while (0 != peasycap_format->v4l2_format.fmt.pix.width) {
JOM(16, ".> %i %i 0x%08X %ix%i\n",
peasycap_format->mask & 0x01,
peasycap_format->v4l2_format.fmt.pix.field,
peasycap_format->v4l2_format.fmt.pix.pixelformat,
peasycap_format->v4l2_format.fmt.pix.width,
peasycap_format->v4l2_format.fmt.pix.height);
if (((peasycap_format->mask & 0x1F) == (mask & 0x1F)) &&
(peasycap_format->v4l2_format.fmt.pix.field == field) &&
(peasycap_format->v4l2_format.fmt.pix.pixelformat == pixelformat) &&
(peasycap_format->v4l2_format.fmt.pix.width == width) &&
(peasycap_format->v4l2_format.fmt.pix.height == height)) {
peasycap_best_format = peasycap_format;
break;
}
peasycap_format++;
}
if (0 == peasycap_format->v4l2_format.fmt.pix.width) {
SAM("cannot do: %ix%i with standard mask 0x%02X\n",
width, height, mask);
peasycap_format = &easycap_format[0];
best = -1;
while (0 != peasycap_format->v4l2_format.fmt.pix.width) {
if (((peasycap_format->mask & 0x1F) == (mask & 0x1F)) &&
(peasycap_format->v4l2_format.fmt.pix.field == field) &&
(peasycap_format->v4l2_format.fmt.pix.pixelformat == pixelformat)) {
miss = abs(peasycap_format->v4l2_format.fmt.pix.width - width);
if ((best > miss) || (best < 0)) {
best = miss;
peasycap_best_format = peasycap_format;
if (!miss)
break;
}
}
peasycap_format++;
}
if (-1 == best) {
SAM("cannot do %ix... with standard mask 0x%02X\n",
width, mask);
SAM("cannot do ...x%i with standard mask 0x%02X\n",
height, mask);
SAM(" %ix%i unmatched\n", width, height);
return peasycap->format_offset;
}
}
if (!peasycap_best_format) {
SAM("MISTAKE: peasycap_best_format is NULL");
return -EINVAL;
}
peasycap_format = peasycap_best_format;
/*...........................................................................*/
if (try)
return peasycap_best_format - easycap_format;
/*...........................................................................*/
if (false != try) {
SAM("MISTAKE: true==try where is should be false\n");
return -EINVAL;
}
SAM("actioning: %ix%i %s\n",
peasycap_format->v4l2_format.fmt.pix.width,
peasycap_format->v4l2_format.fmt.pix.height,
&peasycap_format->name[0]);
peasycap->height = peasycap_format->v4l2_format.fmt.pix.height;
peasycap->width = peasycap_format->v4l2_format.fmt.pix.width;
peasycap->pixelformat = peasycap_format->v4l2_format.fmt.pix.pixelformat;
peasycap->format_offset = peasycap_format - easycap_format;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].format_offset_ok) {
peasycap->inputset[k].format_offset =
peasycap->format_offset;
}
}
if ((0 <= peasycap->input) && (INPUT_MANY > peasycap->input)) {
peasycap->inputset[peasycap->input].format_offset =
peasycap->format_offset;
peasycap->inputset[peasycap->input].format_offset_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
peasycap->bytesperpixel = (0x00E0 & peasycap_format->mask) >> 5 ;
if (0x0100 & peasycap_format->mask)
peasycap->byteswaporder = true;
else
peasycap->byteswaporder = false;
if (0x0200 & peasycap_format->mask)
peasycap->skip = 5;
else
peasycap->skip = 0;
if (0x0800 & peasycap_format->mask)
peasycap->decimatepixel = true;
else
peasycap->decimatepixel = false;
if (0x1000 & peasycap_format->mask)
peasycap->offerfields = true;
else
peasycap->offerfields = false;
if (peasycap->decimatepixel)
multiplier = 2;
else
multiplier = 1;
peasycap->videofieldamount =
multiplier * peasycap->width * multiplier * peasycap->height;
peasycap->frame_buffer_used =
peasycap->bytesperpixel * peasycap->width * peasycap->height;
if (peasycap->video_isoc_streaming) {
resubmit = true;
kill_video_urbs(peasycap);
} else
resubmit = false;
/*---------------------------------------------------------------------------*/
/*
* PAL
*/
/*---------------------------------------------------------------------------*/
if (0 == (0x01 & peasycap_format->mask)) {
if (((720 == peasycap_format->v4l2_format.fmt.pix.width) &&
(576 == peasycap_format->v4l2_format.fmt.pix.height)) ||
((360 == peasycap_format->v4l2_format.fmt.pix.width) &&
(288 == peasycap_format->v4l2_format.fmt.pix.height))) {
if (set_resolution(p, 0x0000, 0x0001, 0x05A0, 0x0121)) {
SAM("ERROR: set_resolution() failed\n");
return -EINVAL;
}
} else if ((704 == peasycap_format->v4l2_format.fmt.pix.width) &&
(576 == peasycap_format->v4l2_format.fmt.pix.height)) {
if (set_resolution(p, 0x0004, 0x0001, 0x0584, 0x0121)) {
SAM("ERROR: set_resolution() failed\n");
return -EINVAL;
}
} else if (((640 == peasycap_format->v4l2_format.fmt.pix.width) &&
(480 == peasycap_format->v4l2_format.fmt.pix.height)) ||
((320 == peasycap_format->v4l2_format.fmt.pix.width) &&
(240 == peasycap_format->v4l2_format.fmt.pix.height))) {
if (set_resolution(p, 0x0014, 0x0020, 0x0514, 0x0110)) {
SAM("ERROR: set_resolution() failed\n");
return -EINVAL;
}
} else {
SAM("MISTAKE: bad format, cannot set resolution\n");
return -EINVAL;
}
/*---------------------------------------------------------------------------*/
/*
* NTSC
*/
/*---------------------------------------------------------------------------*/
} else {
if (((720 == peasycap_format->v4l2_format.fmt.pix.width) &&
(480 == peasycap_format->v4l2_format.fmt.pix.height)) ||
((360 == peasycap_format->v4l2_format.fmt.pix.width) &&
(240 == peasycap_format->v4l2_format.fmt.pix.height))) {
if (set_resolution(p, 0x0000, 0x0003, 0x05A0, 0x00F3)) {
SAM("ERROR: set_resolution() failed\n");
return -EINVAL;
}
} else if (((640 == peasycap_format->v4l2_format.fmt.pix.width) &&
(480 == peasycap_format->v4l2_format.fmt.pix.height)) ||
((320 == peasycap_format->v4l2_format.fmt.pix.width) &&
(240 == peasycap_format->v4l2_format.fmt.pix.height))) {
if (set_resolution(p, 0x0014, 0x0003, 0x0514, 0x00F3)) {
SAM("ERROR: set_resolution() failed\n");
return -EINVAL;
}
} else {
SAM("MISTAKE: bad format, cannot set resolution\n");
return -EINVAL;
}
}
/*---------------------------------------------------------------------------*/
if (resubmit)
submit_video_urbs(peasycap);
return peasycap_best_format - easycap_format;
}
/*****************************************************************************/
int adjust_brightness(struct easycap *peasycap, int value)
{
unsigned int mood;
int i1, k;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_BRIGHTNESS == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) ||
(easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
if ((easycap_control[i1].minimum <= peasycap->brightness) &&
(easycap_control[i1].maximum >= peasycap->brightness)) {
if (peasycap->brightness == value) {
SAM("unchanged brightness at 0x%02X\n",
value);
return 0;
}
}
peasycap->brightness = value;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].brightness_ok)
peasycap->inputset[k].brightness =
peasycap->brightness;
}
if ((0 <= peasycap->input) && (INPUT_MANY > peasycap->input)) {
peasycap->inputset[peasycap->input].brightness =
peasycap->brightness;
peasycap->inputset[peasycap->input].brightness_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
mood = 0x00FF & (unsigned int)peasycap->brightness;
if (!write_saa(peasycap->pusb_device, 0x0A, mood)) {
SAM("adjusting brightness to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust brightness "
"to 0x%02X\n", mood);
return -ENOENT;
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust brightness: control not found\n");
return -ENOENT;
}
/*****************************************************************************/
int adjust_contrast(struct easycap *peasycap, int value)
{
unsigned int mood;
int i1, k;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_CONTRAST == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) ||
(easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
if ((easycap_control[i1].minimum <= peasycap->contrast) &&
(easycap_control[i1].maximum >= peasycap->contrast)) {
if (peasycap->contrast == value) {
SAM("unchanged contrast at 0x%02X\n", value);
return 0;
}
}
peasycap->contrast = value;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].contrast_ok)
peasycap->inputset[k].contrast = peasycap->contrast;
}
if ((0 <= peasycap->input) && (INPUT_MANY > peasycap->input)) {
peasycap->inputset[peasycap->input].contrast =
peasycap->contrast;
peasycap->inputset[peasycap->input].contrast_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
mood = 0x00FF & (unsigned int) (peasycap->contrast - 128);
if (!write_saa(peasycap->pusb_device, 0x0B, mood)) {
SAM("adjusting contrast to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust contrast to "
"0x%02X\n", mood);
return -ENOENT;
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust contrast: control not found\n");
return -ENOENT;
}
/*****************************************************************************/
int adjust_saturation(struct easycap *peasycap, int value)
{
unsigned int mood;
int i1, k;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_SATURATION == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) ||
(easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
if ((easycap_control[i1].minimum <= peasycap->saturation) &&
(easycap_control[i1].maximum >= peasycap->saturation)) {
if (peasycap->saturation == value) {
SAM("unchanged saturation at 0x%02X\n",
value);
return 0;
}
}
peasycap->saturation = value;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].saturation_ok)
peasycap->inputset[k].saturation =
peasycap->saturation;
}
if ((0 <= peasycap->input) && (INPUT_MANY > peasycap->input)) {
peasycap->inputset[peasycap->input].saturation =
peasycap->saturation;
peasycap->inputset[peasycap->input].saturation_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
mood = 0x00FF & (unsigned int) (peasycap->saturation - 128);
if (!write_saa(peasycap->pusb_device, 0x0C, mood)) {
SAM("adjusting saturation to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust saturation to "
"0x%02X\n", mood);
return -ENOENT;
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust saturation: control not found\n");
return -ENOENT;
}
/*****************************************************************************/
int adjust_hue(struct easycap *peasycap, int value)
{
unsigned int mood;
int i1, i2, k;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_HUE == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) ||
(easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
if ((easycap_control[i1].minimum <= peasycap->hue) &&
(easycap_control[i1].maximum >= peasycap->hue)) {
if (peasycap->hue == value) {
SAM("unchanged hue at 0x%02X\n", value);
return 0;
}
}
peasycap->hue = value;
for (k = 0; k < INPUT_MANY; k++) {
if (!peasycap->inputset[k].hue_ok)
peasycap->inputset[k].hue = peasycap->hue;
}
if (0 <= peasycap->input && INPUT_MANY > peasycap->input) {
peasycap->inputset[peasycap->input].hue = peasycap->hue;
peasycap->inputset[peasycap->input].hue_ok = 1;
} else
JOM(8, "%i=peasycap->input\n", peasycap->input);
i2 = peasycap->hue - 128;
mood = 0x00FF & ((int) i2);
if (!write_saa(peasycap->pusb_device, 0x0D, mood)) {
SAM("adjusting hue to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust hue to 0x%02X\n", mood);
return -ENOENT;
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust hue: control not found\n");
return -ENOENT;
}
/*****************************************************************************/
int adjust_volume(struct easycap *peasycap, int value)
{
s8 mood;
int i1;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_AUDIO_VOLUME == easycap_control[i1].id) {
if ((easycap_control[i1].minimum > value) ||
(easycap_control[i1].maximum < value))
value = easycap_control[i1].default_value;
if ((easycap_control[i1].minimum <= peasycap->volume) &&
(easycap_control[i1].maximum >= peasycap->volume)) {
if (peasycap->volume == value) {
SAM("unchanged volume at 0x%02X\n", value);
return 0;
}
}
peasycap->volume = value;
mood = (16 > peasycap->volume) ? 16 :
((31 < peasycap->volume) ? 31 :
(s8) peasycap->volume);
if (!audio_gainset(peasycap->pusb_device, mood)) {
SAM("adjusting volume to 0x%02X\n", mood);
return 0;
} else {
SAM("WARNING: failed to adjust volume to "
"0x%2X\n", mood);
return -ENOENT;
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust volume: control not found\n");
return -ENOENT;
}
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
/*
* AN ALTERNATIVE METHOD OF MUTING MIGHT SEEM TO BE:
* usb_set_interface(peasycap->pusb_device,
* peasycap->audio_interface,
* peasycap->audio_altsetting_off);
* HOWEVER, AFTER THIS COMMAND IS ISSUED ALL SUBSEQUENT URBS RECEIVE STATUS
* -ESHUTDOWN. THE HANDLER ROUTINE easyxxx_complete() DECLINES TO RESUBMIT
* THE URB AND THE PIPELINE COLLAPSES IRRETRIEVABLY. BEWARE.
*/
/*---------------------------------------------------------------------------*/
static int adjust_mute(struct easycap *peasycap, int value)
{
int i1;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (V4L2_CID_AUDIO_MUTE == easycap_control[i1].id) {
peasycap->mute = value;
switch (peasycap->mute) {
case 1: {
peasycap->audio_idle = 1;
SAM("adjusting mute: %i=peasycap->audio_idle\n",
peasycap->audio_idle);
return 0;
}
default: {
peasycap->audio_idle = 0;
SAM("adjusting mute: %i=peasycap->audio_idle\n",
peasycap->audio_idle);
return 0;
}
}
break;
}
i1++;
}
SAM("WARNING: failed to adjust mute: control not found\n");
return -ENOENT;
}
/*---------------------------------------------------------------------------*/
long easycap_unlocked_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct easycap *peasycap;
struct usb_device *p;
int kd;
if (!file) {
SAY("ERROR: file is NULL\n");
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return -1;
}
p = peasycap->pusb_device;
if (!p) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
kd = isdongle(peasycap);
if (0 <= kd && DONGLE_MANY > kd) {
if (mutex_lock_interruptible(&easycapdc60_dongle[kd].mutex_video)) {
SAY("ERROR: cannot lock "
"easycapdc60_dongle[%i].mutex_video\n", kd);
return -ERESTARTSYS;
}
JOM(4, "locked easycapdc60_dongle[%i].mutex_video\n", kd);
/*---------------------------------------------------------------------------*/
/*
* MEANWHILE, easycap_usb_disconnect() MAY HAVE FREED POINTER peasycap,
* IN WHICH CASE A REPEAT CALL TO isdongle() WILL FAIL.
* IF NECESSARY, BAIL OUT.
*/
/*---------------------------------------------------------------------------*/
if (kd != isdongle(peasycap))
return -ERESTARTSYS;
if (!file) {
SAY("ERROR: file is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ERESTARTSYS;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ERESTARTSYS;
}
} else {
/*---------------------------------------------------------------------------*/
/*
* IF easycap_usb_disconnect() HAS ALREADY FREED POINTER peasycap BEFORE THE
* ATTEMPT TO ACQUIRE THE SEMAPHORE, isdongle() WILL HAVE FAILED. BAIL OUT.
*/
/*---------------------------------------------------------------------------*/
return -ERESTARTSYS;
}
/*---------------------------------------------------------------------------*/
switch (cmd) {
case VIDIOC_QUERYCAP: {
struct v4l2_capability v4l2_capability;
char version[16], *p1, *p2;
int i, rc, k[3];
long lng;
JOM(8, "VIDIOC_QUERYCAP\n");
if (16 <= strlen(EASYCAP_DRIVER_VERSION)) {
SAM("ERROR: bad driver version string\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
strcpy(&version[0], EASYCAP_DRIVER_VERSION);
for (i = 0; i < 3; i++)
k[i] = 0;
p2 = &version[0];
i = 0;
while (*p2) {
p1 = p2;
while (*p2 && ('.' != *p2))
p2++;
if (*p2)
*p2++ = 0;
if (3 > i) {
rc = (int) strict_strtol(p1, 10, &lng);
if (rc) {
SAM("ERROR: %i=strict_strtol(%s,.,,)\n",
rc, p1);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
k[i] = (int)lng;
}
i++;
}
memset(&v4l2_capability, 0, sizeof(struct v4l2_capability));
strlcpy(&v4l2_capability.driver[0],
"easycap", sizeof(v4l2_capability.driver));
v4l2_capability.capabilities = V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO |
V4L2_CAP_READWRITE;
v4l2_capability.version = KERNEL_VERSION(k[0], k[1], k[2]);
JOM(8, "v4l2_capability.version=(%i,%i,%i)\n", k[0], k[1], k[2]);
strlcpy(&v4l2_capability.card[0],
"EasyCAP DC60", sizeof(v4l2_capability.card));
if (usb_make_path(peasycap->pusb_device,
&v4l2_capability.bus_info[0],
sizeof(v4l2_capability.bus_info)) < 0) {
strlcpy(&v4l2_capability.bus_info[0], "EasyCAP bus_info",
sizeof(v4l2_capability.bus_info));
JOM(8, "%s=v4l2_capability.bus_info\n",
&v4l2_capability.bus_info[0]);
}
if (copy_to_user((void __user *)arg, &v4l2_capability,
sizeof(struct v4l2_capability))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUMINPUT: {
struct v4l2_input v4l2_input;
u32 index;
JOM(8, "VIDIOC_ENUMINPUT\n");
if (copy_from_user(&v4l2_input, (void __user *)arg,
sizeof(struct v4l2_input))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
index = v4l2_input.index;
memset(&v4l2_input, 0, sizeof(struct v4l2_input));
switch (index) {
case 0: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "CVBS0");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL |
V4L2_STD_SECAM |
V4L2_STD_NTSC ;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
case 1: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "CVBS1");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL | V4L2_STD_SECAM |
V4L2_STD_NTSC;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
case 2: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "CVBS2");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL | V4L2_STD_SECAM |
V4L2_STD_NTSC ;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
case 3: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "CVBS3");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL | V4L2_STD_SECAM |
V4L2_STD_NTSC ;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
case 4: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "CVBS4");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL | V4L2_STD_SECAM |
V4L2_STD_NTSC ;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
case 5: {
v4l2_input.index = index;
strcpy(&v4l2_input.name[0], "S-VIDEO");
v4l2_input.type = V4L2_INPUT_TYPE_CAMERA;
v4l2_input.audioset = 0x01;
v4l2_input.tuner = 0;
v4l2_input.std = V4L2_STD_PAL | V4L2_STD_SECAM |
V4L2_STD_NTSC ;
v4l2_input.status = 0;
JOM(8, "%i=index: %s\n", index, &v4l2_input.name[0]);
break;
}
default: {
JOM(8, "%i=index: exhausts inputs\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
if (copy_to_user((void __user *)arg, &v4l2_input,
sizeof(struct v4l2_input))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_INPUT: {
u32 index;
JOM(8, "VIDIOC_G_INPUT\n");
index = (u32)peasycap->input;
JOM(8, "user is told: %i\n", index);
if (copy_to_user((void __user *)arg, &index, sizeof(u32))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_INPUT:
{
u32 index;
int rc;
JOM(8, "VIDIOC_S_INPUT\n");
if (0 != copy_from_user(&index, (void __user *)arg, sizeof(u32))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
JOM(8, "user requests input %i\n", index);
if ((int)index == peasycap->input) {
SAM("requested input already in effect\n");
break;
}
if ((0 > index) || (INPUT_MANY <= index)) {
JOM(8, "ERROR: bad requested input: %i\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
rc = newinput(peasycap, (int)index);
if (0 == rc) {
JOM(8, "newinput(.,%i) OK\n", (int)index);
} else {
SAM("ERROR: newinput(.,%i) returned %i\n", (int)index, rc);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUMAUDIO: {
JOM(8, "VIDIOC_ENUMAUDIO\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUMAUDOUT: {
struct v4l2_audioout v4l2_audioout;
JOM(8, "VIDIOC_ENUMAUDOUT\n");
if (copy_from_user(&v4l2_audioout, (void __user *)arg,
sizeof(struct v4l2_audioout))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (0 != v4l2_audioout.index) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
memset(&v4l2_audioout, 0, sizeof(struct v4l2_audioout));
v4l2_audioout.index = 0;
strcpy(&v4l2_audioout.name[0], "Soundtrack");
if (copy_to_user((void __user *)arg, &v4l2_audioout,
sizeof(struct v4l2_audioout))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_QUERYCTRL: {
int i1;
struct v4l2_queryctrl v4l2_queryctrl;
JOM(8, "VIDIOC_QUERYCTRL\n");
if (0 != copy_from_user(&v4l2_queryctrl, (void __user *)arg,
sizeof(struct v4l2_queryctrl))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
i1 = 0;
while (0xFFFFFFFF != easycap_control[i1].id) {
if (easycap_control[i1].id == v4l2_queryctrl.id) {
JOM(8, "VIDIOC_QUERYCTRL %s=easycap_control[%i]"
".name\n", &easycap_control[i1].name[0], i1);
memcpy(&v4l2_queryctrl, &easycap_control[i1],
sizeof(struct v4l2_queryctrl));
break;
}
i1++;
}
if (0xFFFFFFFF == easycap_control[i1].id) {
JOM(8, "%i=index: exhausts controls\n", i1);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
if (copy_to_user((void __user *)arg, &v4l2_queryctrl,
sizeof(struct v4l2_queryctrl))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_QUERYMENU: {
JOM(8, "VIDIOC_QUERYMENU unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_CTRL: {
struct v4l2_control *pv4l2_control;
JOM(8, "VIDIOC_G_CTRL\n");
pv4l2_control = memdup_user((void __user *)arg,
sizeof(struct v4l2_control));
if (IS_ERR(pv4l2_control)) {
SAM("ERROR: copy from user failed\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return PTR_ERR(pv4l2_control);
}
switch (pv4l2_control->id) {
case V4L2_CID_BRIGHTNESS: {
pv4l2_control->value = peasycap->brightness;
JOM(8, "user enquires brightness: %i\n", pv4l2_control->value);
break;
}
case V4L2_CID_CONTRAST: {
pv4l2_control->value = peasycap->contrast;
JOM(8, "user enquires contrast: %i\n", pv4l2_control->value);
break;
}
case V4L2_CID_SATURATION: {
pv4l2_control->value = peasycap->saturation;
JOM(8, "user enquires saturation: %i\n", pv4l2_control->value);
break;
}
case V4L2_CID_HUE: {
pv4l2_control->value = peasycap->hue;
JOM(8, "user enquires hue: %i\n", pv4l2_control->value);
break;
}
case V4L2_CID_AUDIO_VOLUME: {
pv4l2_control->value = peasycap->volume;
JOM(8, "user enquires volume: %i\n", pv4l2_control->value);
break;
}
case V4L2_CID_AUDIO_MUTE: {
if (1 == peasycap->mute)
pv4l2_control->value = true;
else
pv4l2_control->value = false;
JOM(8, "user enquires mute: %i\n", pv4l2_control->value);
break;
}
default: {
SAM("ERROR: unknown V4L2 control: 0x%08X=id\n",
pv4l2_control->id);
kfree(pv4l2_control);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
if (copy_to_user((void __user *)arg, pv4l2_control,
sizeof(struct v4l2_control))) {
kfree(pv4l2_control);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
kfree(pv4l2_control);
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_CTRL: {
struct v4l2_control v4l2_control;
JOM(8, "VIDIOC_S_CTRL\n");
if (0 != copy_from_user(&v4l2_control, (void __user *)arg,
sizeof(struct v4l2_control))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
switch (v4l2_control.id) {
case V4L2_CID_BRIGHTNESS: {
JOM(8, "user requests brightness %i\n", v4l2_control.value);
if (0 != adjust_brightness(peasycap, v4l2_control.value))
;
break;
}
case V4L2_CID_CONTRAST: {
JOM(8, "user requests contrast %i\n", v4l2_control.value);
if (0 != adjust_contrast(peasycap, v4l2_control.value))
;
break;
}
case V4L2_CID_SATURATION: {
JOM(8, "user requests saturation %i\n", v4l2_control.value);
if (0 != adjust_saturation(peasycap, v4l2_control.value))
;
break;
}
case V4L2_CID_HUE: {
JOM(8, "user requests hue %i\n", v4l2_control.value);
if (0 != adjust_hue(peasycap, v4l2_control.value))
;
break;
}
case V4L2_CID_AUDIO_VOLUME: {
JOM(8, "user requests volume %i\n", v4l2_control.value);
if (0 != adjust_volume(peasycap, v4l2_control.value))
;
break;
}
case V4L2_CID_AUDIO_MUTE: {
int mute;
JOM(8, "user requests mute %i\n", v4l2_control.value);
if (v4l2_control.value)
mute = 1;
else
mute = 0;
if (0 != adjust_mute(peasycap, mute))
SAM("WARNING: failed to adjust mute to %i\n", mute);
break;
}
default: {
SAM("ERROR: unknown V4L2 control: 0x%08X=id\n",
v4l2_control.id);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_EXT_CTRLS: {
JOM(8, "VIDIOC_S_EXT_CTRLS unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUM_FMT: {
u32 index;
struct v4l2_fmtdesc v4l2_fmtdesc;
JOM(8, "VIDIOC_ENUM_FMT\n");
if (0 != copy_from_user(&v4l2_fmtdesc, (void __user *)arg,
sizeof(struct v4l2_fmtdesc))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
index = v4l2_fmtdesc.index;
memset(&v4l2_fmtdesc, 0, sizeof(struct v4l2_fmtdesc));
v4l2_fmtdesc.index = index;
v4l2_fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
switch (index) {
case 0: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "uyvy");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_UYVY;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
case 1: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "yuy2");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_YUYV;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
case 2: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "rgb24");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_RGB24;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
case 3: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "rgb32");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_RGB32;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
case 4: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "bgr24");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_BGR24;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
case 5: {
v4l2_fmtdesc.flags = 0;
strcpy(&v4l2_fmtdesc.description[0], "bgr32");
v4l2_fmtdesc.pixelformat = V4L2_PIX_FMT_BGR32;
JOM(8, "%i=index: %s\n", index, &v4l2_fmtdesc.description[0]);
break;
}
default: {
JOM(8, "%i=index: exhausts formats\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
if (copy_to_user((void __user *)arg, &v4l2_fmtdesc,
sizeof(struct v4l2_fmtdesc))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*
* THE RESPONSE TO VIDIOC_ENUM_FRAMESIZES MUST BE CONDITIONED ON THE
* THE CURRENT STANDARD, BECAUSE THAT IS WHAT gstreamer EXPECTS. BEWARE.
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUM_FRAMESIZES: {
u32 index;
struct v4l2_frmsizeenum v4l2_frmsizeenum;
JOM(8, "VIDIOC_ENUM_FRAMESIZES\n");
if (0 != copy_from_user(&v4l2_frmsizeenum, (void __user *)arg,
sizeof(struct v4l2_frmsizeenum))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
index = v4l2_frmsizeenum.index;
v4l2_frmsizeenum.type = (u32) V4L2_FRMSIZE_TYPE_DISCRETE;
if (peasycap->ntsc) {
switch (index) {
case 0: {
v4l2_frmsizeenum.discrete.width = 640;
v4l2_frmsizeenum.discrete.height = 480;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 1: {
v4l2_frmsizeenum.discrete.width = 320;
v4l2_frmsizeenum.discrete.height = 240;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 2: {
v4l2_frmsizeenum.discrete.width = 720;
v4l2_frmsizeenum.discrete.height = 480;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 3: {
v4l2_frmsizeenum.discrete.width = 360;
v4l2_frmsizeenum.discrete.height = 240;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
default: {
JOM(8, "%i=index: exhausts framesizes\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
} else {
switch (index) {
case 0: {
v4l2_frmsizeenum.discrete.width = 640;
v4l2_frmsizeenum.discrete.height = 480;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 1: {
v4l2_frmsizeenum.discrete.width = 320;
v4l2_frmsizeenum.discrete.height = 240;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 2: {
v4l2_frmsizeenum.discrete.width = 704;
v4l2_frmsizeenum.discrete.height = 576;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 3: {
v4l2_frmsizeenum.discrete.width = 720;
v4l2_frmsizeenum.discrete.height = 576;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
case 4: {
v4l2_frmsizeenum.discrete.width = 360;
v4l2_frmsizeenum.discrete.height = 288;
JOM(8, "%i=index: %ix%i\n", index,
(int)(v4l2_frmsizeenum.
discrete.width),
(int)(v4l2_frmsizeenum.
discrete.height));
break;
}
default: {
JOM(8, "%i=index: exhausts framesizes\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
}
if (copy_to_user((void __user *)arg, &v4l2_frmsizeenum,
sizeof(struct v4l2_frmsizeenum))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*
* THE RESPONSE TO VIDIOC_ENUM_FRAMEINTERVALS MUST BE CONDITIONED ON THE
* THE CURRENT STANDARD, BECAUSE THAT IS WHAT gstreamer EXPECTS. BEWARE.
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_ENUM_FRAMEINTERVALS: {
u32 index;
int denominator;
struct v4l2_frmivalenum v4l2_frmivalenum;
JOM(8, "VIDIOC_ENUM_FRAMEINTERVALS\n");
if (peasycap->fps)
denominator = peasycap->fps;
else {
if (peasycap->ntsc)
denominator = 30;
else
denominator = 25;
}
if (0 != copy_from_user(&v4l2_frmivalenum, (void __user *)arg,
sizeof(struct v4l2_frmivalenum))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
index = v4l2_frmivalenum.index;
v4l2_frmivalenum.type = (u32) V4L2_FRMIVAL_TYPE_DISCRETE;
switch (index) {
case 0: {
v4l2_frmivalenum.discrete.numerator = 1;
v4l2_frmivalenum.discrete.denominator = denominator;
JOM(8, "%i=index: %i/%i\n", index,
(int)(v4l2_frmivalenum.discrete.numerator),
(int)(v4l2_frmivalenum.discrete.denominator));
break;
}
case 1: {
v4l2_frmivalenum.discrete.numerator = 1;
v4l2_frmivalenum.discrete.denominator = denominator/5;
JOM(8, "%i=index: %i/%i\n", index,
(int)(v4l2_frmivalenum.discrete.numerator),
(int)(v4l2_frmivalenum.discrete.denominator));
break;
}
default: {
JOM(8, "%i=index: exhausts frameintervals\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
}
if (copy_to_user((void __user *)arg, &v4l2_frmivalenum,
sizeof(struct v4l2_frmivalenum))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_FMT: {
struct v4l2_format *pv4l2_format;
struct v4l2_pix_format *pv4l2_pix_format;
JOM(8, "VIDIOC_G_FMT\n");
pv4l2_format = kzalloc(sizeof(struct v4l2_format), GFP_KERNEL);
if (!pv4l2_format) {
SAM("ERROR: out of memory\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ENOMEM;
}
pv4l2_pix_format = kzalloc(sizeof(struct v4l2_pix_format), GFP_KERNEL);
if (!pv4l2_pix_format) {
SAM("ERROR: out of memory\n");
kfree(pv4l2_format);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ENOMEM;
}
if (0 != copy_from_user(pv4l2_format, (void __user *)arg,
sizeof(struct v4l2_format))) {
kfree(pv4l2_format);
kfree(pv4l2_pix_format);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (pv4l2_format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
kfree(pv4l2_format);
kfree(pv4l2_pix_format);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
memset(pv4l2_pix_format, 0, sizeof(struct v4l2_pix_format));
pv4l2_format->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
memcpy(&pv4l2_format->fmt.pix,
&easycap_format[peasycap->format_offset]
.v4l2_format.fmt.pix, sizeof(struct v4l2_pix_format));
JOM(8, "user is told: %s\n",
&easycap_format[peasycap->format_offset].name[0]);
if (copy_to_user((void __user *)arg, pv4l2_format,
sizeof(struct v4l2_format))) {
kfree(pv4l2_format);
kfree(pv4l2_pix_format);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
kfree(pv4l2_format);
kfree(pv4l2_pix_format);
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_TRY_FMT:
case VIDIOC_S_FMT: {
struct v4l2_format v4l2_format;
struct v4l2_pix_format v4l2_pix_format;
bool try;
int best_format;
if (VIDIOC_TRY_FMT == cmd) {
JOM(8, "VIDIOC_TRY_FMT\n");
try = true;
} else {
JOM(8, "VIDIOC_S_FMT\n");
try = false;
}
if (0 != copy_from_user(&v4l2_format, (void __user *)arg,
sizeof(struct v4l2_format))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
best_format = adjust_format(peasycap,
v4l2_format.fmt.pix.width,
v4l2_format.fmt.pix.height,
v4l2_format.fmt.pix.pixelformat,
v4l2_format.fmt.pix.field,
try);
if (0 > best_format) {
if (-EBUSY == best_format) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EBUSY;
}
JOM(8, "WARNING: adjust_format() returned %i\n", best_format);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ENOENT;
}
/*...........................................................................*/
memset(&v4l2_pix_format, 0, sizeof(struct v4l2_pix_format));
v4l2_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
memcpy(&(v4l2_format.fmt.pix),
&(easycap_format[best_format].v4l2_format.fmt.pix),
sizeof(v4l2_pix_format));
JOM(8, "user is told: %s\n", &easycap_format[best_format].name[0]);
if (copy_to_user((void __user *)arg, &v4l2_format,
sizeof(struct v4l2_format))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_CROPCAP: {
struct v4l2_cropcap v4l2_cropcap;
JOM(8, "VIDIOC_CROPCAP\n");
if (0 != copy_from_user(&v4l2_cropcap, (void __user *)arg,
sizeof(struct v4l2_cropcap))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (v4l2_cropcap.type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
JOM(8, "v4l2_cropcap.type != V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
memset(&v4l2_cropcap, 0, sizeof(struct v4l2_cropcap));
v4l2_cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
v4l2_cropcap.bounds.left = 0;
v4l2_cropcap.bounds.top = 0;
v4l2_cropcap.bounds.width = peasycap->width;
v4l2_cropcap.bounds.height = peasycap->height;
v4l2_cropcap.defrect.left = 0;
v4l2_cropcap.defrect.top = 0;
v4l2_cropcap.defrect.width = peasycap->width;
v4l2_cropcap.defrect.height = peasycap->height;
v4l2_cropcap.pixelaspect.numerator = 1;
v4l2_cropcap.pixelaspect.denominator = 1;
JOM(8, "user is told: %ix%i\n", peasycap->width, peasycap->height);
if (copy_to_user((void __user *)arg, &v4l2_cropcap,
sizeof(struct v4l2_cropcap))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_CROP:
case VIDIOC_S_CROP: {
JOM(8, "VIDIOC_G_CROP|VIDIOC_S_CROP unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_QUERYSTD: {
JOM(8, "VIDIOC_QUERYSTD: "
"EasyCAP is incapable of detecting standard\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
break;
}
/*-------------------------------------------------------------------*/
/*
* THE MANIPULATIONS INVOLVING last0,last1,last2,last3
* CONSTITUTE A WORKAROUND * FOR WHAT APPEARS TO BE
* A BUG IN 64-BIT mplayer.
* NOT NEEDED, BUT HOPEFULLY HARMLESS, FOR 32-BIT mplayer.
*/
/*------------------------------------------------------------------*/
case VIDIOC_ENUMSTD: {
int last0 = -1, last1 = -1, last2 = -1, last3 = -1;
struct v4l2_standard v4l2_standard;
u32 index;
struct easycap_standard const *peasycap_standard;
JOM(8, "VIDIOC_ENUMSTD\n");
if (0 != copy_from_user(&v4l2_standard, (void __user *)arg,
sizeof(struct v4l2_standard))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
index = v4l2_standard.index;
last3 = last2;
last2 = last1;
last1 = last0;
last0 = index;
if ((index == last3) && (index == last2) &&
(index == last1) && (index == last0)) {
index++;
last3 = last2;
last2 = last1;
last1 = last0;
last0 = index;
}
memset(&v4l2_standard, 0, sizeof(struct v4l2_standard));
peasycap_standard = &easycap_standard[0];
while (0xFFFF != peasycap_standard->mask) {
if ((int)(peasycap_standard - &easycap_standard[0]) == index)
break;
peasycap_standard++;
}
if (0xFFFF == peasycap_standard->mask) {
JOM(8, "%i=index: exhausts standards\n", index);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
JOM(8, "%i=index: %s\n", index,
&(peasycap_standard->v4l2_standard.name[0]));
memcpy(&v4l2_standard, &(peasycap_standard->v4l2_standard),
sizeof(struct v4l2_standard));
v4l2_standard.index = index;
if (copy_to_user((void __user *)arg, &v4l2_standard,
sizeof(struct v4l2_standard))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_STD: {
v4l2_std_id std_id;
struct easycap_standard const *peasycap_standard;
JOM(8, "VIDIOC_G_STD\n");
if (0 > peasycap->standard_offset) {
JOM(8, "%i=peasycap->standard_offset\n",
peasycap->standard_offset);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EBUSY;
}
if (0 != copy_from_user(&std_id, (void __user *)arg,
sizeof(v4l2_std_id))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
peasycap_standard = &easycap_standard[peasycap->standard_offset];
std_id = peasycap_standard->v4l2_standard.id;
JOM(8, "user is told: %s\n",
&peasycap_standard->v4l2_standard.name[0]);
if (copy_to_user((void __user *)arg, &std_id,
sizeof(v4l2_std_id))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_STD: {
v4l2_std_id std_id;
int rc;
JOM(8, "VIDIOC_S_STD\n");
if (0 != copy_from_user(&std_id, (void __user *)arg,
sizeof(v4l2_std_id))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
JOM(8, "User requests standard: 0x%08X%08X\n",
(int)((std_id & (((v4l2_std_id)0xFFFFFFFF) << 32)) >> 32),
(int)(std_id & ((v4l2_std_id)0xFFFFFFFF)));
rc = adjust_standard(peasycap, std_id);
if (0 > rc) {
JOM(8, "WARNING: adjust_standard() returned %i\n", rc);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ENOENT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_REQBUFS: {
int nbuffers;
struct v4l2_requestbuffers v4l2_requestbuffers;
JOM(8, "VIDIOC_REQBUFS\n");
if (0 != copy_from_user(&v4l2_requestbuffers,
(void __user *)arg,
sizeof(struct v4l2_requestbuffers))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (v4l2_requestbuffers.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
if (v4l2_requestbuffers.memory != V4L2_MEMORY_MMAP) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
nbuffers = v4l2_requestbuffers.count;
JOM(8, " User requests %i buffers ...\n", nbuffers);
if (nbuffers < 2)
nbuffers = 2;
if (nbuffers > FRAME_BUFFER_MANY)
nbuffers = FRAME_BUFFER_MANY;
if (v4l2_requestbuffers.count == nbuffers) {
JOM(8, " ... agree to %i buffers\n",
nbuffers);
} else {
JOM(8, " ... insist on %i buffers\n",
nbuffers);
v4l2_requestbuffers.count = nbuffers;
}
peasycap->frame_buffer_many = nbuffers;
if (copy_to_user((void __user *)arg, &v4l2_requestbuffers,
sizeof(struct v4l2_requestbuffers))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_QUERYBUF: {
u32 index;
struct v4l2_buffer v4l2_buffer;
JOM(8, "VIDIOC_QUERYBUF\n");
if (peasycap->video_eof) {
JOM(8, "returning -EIO because %i=video_eof\n",
peasycap->video_eof);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EIO;
}
if (0 != copy_from_user(&v4l2_buffer, (void __user *)arg,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (v4l2_buffer.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
index = v4l2_buffer.index;
if (index < 0 || index >= peasycap->frame_buffer_many)
return -EINVAL;
memset(&v4l2_buffer, 0, sizeof(struct v4l2_buffer));
v4l2_buffer.index = index;
v4l2_buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
v4l2_buffer.bytesused = peasycap->frame_buffer_used;
v4l2_buffer.flags = V4L2_BUF_FLAG_MAPPED |
peasycap->done[index] |
peasycap->queued[index];
v4l2_buffer.field = V4L2_FIELD_NONE;
v4l2_buffer.memory = V4L2_MEMORY_MMAP;
v4l2_buffer.m.offset = index * FRAME_BUFFER_SIZE;
v4l2_buffer.length = FRAME_BUFFER_SIZE;
JOM(16, " %10i=index\n", v4l2_buffer.index);
JOM(16, " 0x%08X=type\n", v4l2_buffer.type);
JOM(16, " %10i=bytesused\n", v4l2_buffer.bytesused);
JOM(16, " 0x%08X=flags\n", v4l2_buffer.flags);
JOM(16, " %10i=field\n", v4l2_buffer.field);
JOM(16, " %10li=timestamp.tv_usec\n",
(long)v4l2_buffer.timestamp.tv_usec);
JOM(16, " %10i=sequence\n", v4l2_buffer.sequence);
JOM(16, " 0x%08X=memory\n", v4l2_buffer.memory);
JOM(16, " %10i=m.offset\n", v4l2_buffer.m.offset);
JOM(16, " %10i=length\n", v4l2_buffer.length);
if (copy_to_user((void __user *)arg, &v4l2_buffer,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_QBUF: {
struct v4l2_buffer v4l2_buffer;
JOM(8, "VIDIOC_QBUF\n");
if (0 != copy_from_user(&v4l2_buffer, (void __user *)arg,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (v4l2_buffer.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
if (v4l2_buffer.memory != V4L2_MEMORY_MMAP) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
if (v4l2_buffer.index < 0 ||
v4l2_buffer.index >= peasycap->frame_buffer_many) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
v4l2_buffer.flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED;
peasycap->done[v4l2_buffer.index] = 0;
peasycap->queued[v4l2_buffer.index] = V4L2_BUF_FLAG_QUEUED;
if (copy_to_user((void __user *)arg, &v4l2_buffer,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
JOM(8, "..... user queueing frame buffer %i\n",
(int)v4l2_buffer.index);
peasycap->frame_lock = 0;
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_DQBUF:
{
struct timeval timeval, timeval2;
int i, j;
struct v4l2_buffer v4l2_buffer;
int rcdq;
u16 input;
JOM(8, "VIDIOC_DQBUF\n");
if ((peasycap->video_idle) || (peasycap->video_eof)) {
JOM(8, "returning -EIO because "
"%i=video_idle %i=video_eof\n",
peasycap->video_idle, peasycap->video_eof);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EIO;
}
if (copy_from_user(&v4l2_buffer, (void __user *)arg,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
if (v4l2_buffer.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
if (peasycap->offerfields) {
/*---------------------------------------------------*/
/*
* IN ITS 50 "fps" MODE tvtime SEEMS ALWAYS TO REQUEST
* V4L2_FIELD_BOTTOM
*/
/*---------------------------------------------------*/
if (V4L2_FIELD_TOP == v4l2_buffer.field)
JOM(8, "user wants V4L2_FIELD_TOP\n");
else if (V4L2_FIELD_BOTTOM == v4l2_buffer.field)
JOM(8, "user wants V4L2_FIELD_BOTTOM\n");
else if (V4L2_FIELD_ANY == v4l2_buffer.field)
JOM(8, "user wants V4L2_FIELD_ANY\n");
else
JOM(8, "user wants V4L2_FIELD_...UNKNOWN: %i\n",
v4l2_buffer.field);
}
if (!peasycap->video_isoc_streaming) {
JOM(16, "returning -EIO because video urbs not streaming\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EIO;
}
/*-------------------------------------------------------------------*/
/*
* IF THE USER HAS PREVIOUSLY CALLED easycap_poll(),
* AS DETERMINED BY FINDING
* THE FLAG peasycap->polled SET, THERE MUST BE
* NO FURTHER WAIT HERE. IN THIS
* CASE, JUST CHOOSE THE FRAME INDICATED BY peasycap->frame_read
*/
/*-------------------------------------------------------------------*/
if (!peasycap->polled) {
do {
rcdq = easycap_dqbuf(peasycap, 0);
if (-EIO == rcdq) {
JOM(8, "returning -EIO because "
"dqbuf() returned -EIO\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EIO;
}
} while (0 != rcdq);
} else {
if (peasycap->video_eof) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EIO;
}
}
if (V4L2_BUF_FLAG_DONE != peasycap->done[peasycap->frame_read]) {
JOM(8, "V4L2_BUF_FLAG_DONE != 0x%08X\n",
peasycap->done[peasycap->frame_read]);
}
peasycap->polled = 0;
if (!(peasycap->isequence % 10)) {
for (i = 0; i < 179; i++)
peasycap->merit[i] = peasycap->merit[i+1];
peasycap->merit[179] = merit_saa(peasycap->pusb_device);
j = 0;
for (i = 0; i < 180; i++)
j += peasycap->merit[i];
if (90 < j) {
SAM("easycap driver shutting down "
"on condition blue\n");
peasycap->video_eof = 1;
peasycap->audio_eof = 1;
}
}
v4l2_buffer.index = peasycap->frame_read;
v4l2_buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
v4l2_buffer.bytesused = peasycap->frame_buffer_used;
v4l2_buffer.flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE;
if (peasycap->offerfields)
v4l2_buffer.field = V4L2_FIELD_BOTTOM;
else
v4l2_buffer.field = V4L2_FIELD_NONE;
do_gettimeofday(&timeval);
timeval2 = timeval;
v4l2_buffer.timestamp = timeval2;
v4l2_buffer.sequence = peasycap->isequence++;
v4l2_buffer.memory = V4L2_MEMORY_MMAP;
v4l2_buffer.m.offset = v4l2_buffer.index * FRAME_BUFFER_SIZE;
v4l2_buffer.length = FRAME_BUFFER_SIZE;
JOM(16, " %10i=index\n", v4l2_buffer.index);
JOM(16, " 0x%08X=type\n", v4l2_buffer.type);
JOM(16, " %10i=bytesused\n", v4l2_buffer.bytesused);
JOM(16, " 0x%08X=flags\n", v4l2_buffer.flags);
JOM(16, " %10i=field\n", v4l2_buffer.field);
JOM(16, " %10li=timestamp.tv_sec\n",
(long)v4l2_buffer.timestamp.tv_sec);
JOM(16, " %10li=timestamp.tv_usec\n",
(long)v4l2_buffer.timestamp.tv_usec);
JOM(16, " %10i=sequence\n", v4l2_buffer.sequence);
JOM(16, " 0x%08X=memory\n", v4l2_buffer.memory);
JOM(16, " %10i=m.offset\n", v4l2_buffer.m.offset);
JOM(16, " %10i=length\n", v4l2_buffer.length);
if (copy_to_user((void __user *)arg, &v4l2_buffer,
sizeof(struct v4l2_buffer))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
input = peasycap->frame_buffer[peasycap->frame_read][0].input;
if (0x08 & input) {
JOM(8, "user is offered frame buffer %i, input %i\n",
peasycap->frame_read, (0x07 & input));
} else {
JOM(8, "user is offered frame buffer %i\n",
peasycap->frame_read);
}
peasycap->frame_lock = 1;
JOM(8, "%i=peasycap->frame_fill\n", peasycap->frame_fill);
if (peasycap->frame_read == peasycap->frame_fill) {
if (peasycap->frame_lock) {
JOM(8, "WORRY: filling frame buffer "
"while offered to user\n");
}
}
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_STREAMON: {
int i;
JOM(8, "VIDIOC_STREAMON\n");
peasycap->isequence = 0;
for (i = 0; i < 180; i++)
peasycap->merit[i] = 0;
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
submit_video_urbs(peasycap);
peasycap->video_idle = 0;
peasycap->audio_idle = 0;
peasycap->video_eof = 0;
peasycap->audio_eof = 0;
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_STREAMOFF: {
JOM(8, "VIDIOC_STREAMOFF\n");
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
peasycap->video_idle = 1;
peasycap->audio_idle = 1;
/*---------------------------------------------------------------------------*/
/*
* IF THE WAIT QUEUES ARE NOT CLEARED IN RESPONSE TO THE STREAMOFF COMMAND
* THE USERSPACE PROGRAM, E.G. mplayer, MAY HANG ON EXIT. BEWARE.
*/
/*---------------------------------------------------------------------------*/
JOM(8, "calling wake_up on wq_video and wq_audio\n");
wake_up_interruptible(&(peasycap->wq_video));
if (peasycap->psubstream)
snd_pcm_period_elapsed(peasycap->psubstream);
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_PARM: {
struct v4l2_streamparm *pv4l2_streamparm;
JOM(8, "VIDIOC_G_PARM\n");
pv4l2_streamparm = memdup_user((void __user *)arg,
sizeof(struct v4l2_streamparm));
if (IS_ERR(pv4l2_streamparm)) {
SAM("ERROR: copy from user failed\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return PTR_ERR(pv4l2_streamparm);
}
if (pv4l2_streamparm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
kfree(pv4l2_streamparm);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
pv4l2_streamparm->parm.capture.capability = 0;
pv4l2_streamparm->parm.capture.capturemode = 0;
pv4l2_streamparm->parm.capture.timeperframe.numerator = 1;
if (peasycap->fps) {
pv4l2_streamparm->parm.capture.timeperframe.
denominator = peasycap->fps;
} else {
if (peasycap->ntsc) {
pv4l2_streamparm->parm.capture.timeperframe.
denominator = 30;
} else {
pv4l2_streamparm->parm.capture.timeperframe.
denominator = 25;
}
}
pv4l2_streamparm->parm.capture.readbuffers =
peasycap->frame_buffer_many;
pv4l2_streamparm->parm.capture.extendedmode = 0;
if (copy_to_user((void __user *)arg,
pv4l2_streamparm,
sizeof(struct v4l2_streamparm))) {
kfree(pv4l2_streamparm);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EFAULT;
}
kfree(pv4l2_streamparm);
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_PARM: {
JOM(8, "VIDIOC_S_PARM unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_AUDIO: {
JOM(8, "VIDIOC_G_AUDIO unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_AUDIO: {
JOM(8, "VIDIOC_S_AUDIO unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_S_TUNER: {
JOM(8, "VIDIOC_S_TUNER unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_FBUF:
case VIDIOC_S_FBUF:
case VIDIOC_OVERLAY: {
JOM(8, "VIDIOC_G_FBUF|VIDIOC_S_FBUF|VIDIOC_OVERLAY unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
case VIDIOC_G_TUNER: {
JOM(8, "VIDIOC_G_TUNER unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
case VIDIOC_G_FREQUENCY:
case VIDIOC_S_FREQUENCY: {
JOM(8, "VIDIOC_G_FREQUENCY|VIDIOC_S_FREQUENCY unsupported\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -EINVAL;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
default: {
JOM(8, "ERROR: unrecognized V4L2 IOCTL command: 0x%08X\n", cmd);
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ENOIOCTLCMD;
}
}
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
JOM(4, "unlocked easycapdc60_dongle[%i].mutex_video\n", kd);
return 0;
}
/*****************************************************************************/