staging/easycap: remove AUDIOTIME feature

remove code guarded by AUDIOTIME define
This was experimental code in which I tried  improve audio-video
synchronization but it didn't work well

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/easycap/easycap_ioctl.c b/drivers/staging/easycap/easycap_ioctl.c
index cbcf394..d6d0b72 100644 (file)
--- a/drivers/staging/easycap/easycap_ioctl.c
+++ b/drivers/staging/easycap/easycap_ioctl.c
@@ -2151,13 +2151,6 @@ case VIDIOC_QBUF: {
 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 case VIDIOC_DQBUF:
        {
-#ifdef AUDIOTIME
-       struct signed_div_result sdr;
-       long long int above, below, dnbydt, fudge, sll;
-       unsigned long long int ull;
-       struct timeval timeval8;
-       struct timeval timeval1;
-#endif /*AUDIOTIME*/
        struct timeval timeval, timeval2;
        int i, j;
        struct v4l2_buffer v4l2_buffer;
@@ -2264,41 +2257,6 @@ case VIDIOC_DQBUF:
        do_gettimeofday(&timeval);
        timeval2 = timeval;
 
-#ifdef AUDIOTIME
-       if (!peasycap->timeval0.tv_sec) {
-               timeval8 = timeval;
-               timeval1 = timeval;
-               timeval2 = timeval;
-               dnbydt = 192000;
-               peasycap->timeval0 = timeval8;
-       } else {
-               dnbydt = peasycap->dnbydt;
-               timeval1 = peasycap->timeval1;
-               above = dnbydt * MICROSECONDS(timeval, timeval1);
-               below = 192000;
-               sdr = signed_div(above, below);
-
-               above = sdr.quotient + timeval1.tv_usec - 350000;
-
-               below = 1000000;
-               sdr = signed_div(above, below);
-               timeval2.tv_usec = sdr.remainder;
-               timeval2.tv_sec = timeval1.tv_sec + sdr.quotient;
-       }
-       if (!(peasycap->isequence % 500)) {
-               fudge = ((long long int)(1000000)) *
-                               ((long long int)(timeval.tv_sec -
-                                               timeval2.tv_sec)) +
-                               (long long int)(timeval.tv_usec -
-                                               timeval2.tv_usec);
-               sdr = signed_div(fudge, 1000);
-               sll = sdr.quotient;
-               ull = sdr.remainder;
-
-               SAM("%5lli.%-3lli=ms timestamp fudge\n", sll, ull);
-       }
-#endif /*AUDIOTIME*/
-
        v4l2_buffer.timestamp = timeval2;
        v4l2_buffer.sequence = peasycap->isequence++;
        v4l2_buffer.memory = V4L2_MEMORY_MMAP;