v4l2-ctl: add support for VIDIOC_S_HW_FREQ_SEEK.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp
index 032bdfa..a45d799 100644 (file)
--- a/utils/v4l2-ctl/v4l2-ctl.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl.cpp
@@ -166,6 +166,7 @@ enum Option {
        OptQueryDvPreset,
        OptGetDvBtTimings,
        OptSetDvBtTimings,
+       OptFreqSeek,
        OptLast = 256
 };
 
@@ -327,6 +328,7 @@ static struct option long_options[] = {
        {"query-dv-presets", no_argument, 0, OptQueryDvPreset},
        {"get-dv-bt-timings", no_argument, 0, OptGetDvBtTimings},
        {"set-dv-bt-timings", required_argument, 0, OptSetDvBtTimings},
+       {"freq-seek", required_argument, 0, OptFreqSeek},
        {0, 0, 0, 0}
 };
 
@@ -552,6 +554,11 @@ static void usage(void)
               "                     set the digital video timings according to the BT 656/1120 standard [VIDIOC_S_DV_TIMINGS]\n"
               "  --get-dv-bt-timings\n"
               "                     get the digital video timings in use [VIDIOC_G_DV_TIMINGS]\n"
+              "  --freq-seek=dir=<0/1>,wrap=<0/1>,spacing=<hz>\n"
+              "                     perform a hardware frequency seek [VIDIOC_S_HW_FREQ_SEEK]\n"
+              "                     dir is 0 (seek downward) or 1 (seek upward)\n"
+              "                     wrap is 0 (do not wrap around) or 1 (wrap around)\n"
+              "                     spacing is 0 (use default seek resolution) or sets the seek resolution\n"
               "  --sleep=<secs>     sleep for <secs> seconds, call QUERYCAP and close the file handle\n"
               "  --streamoff        turn the stream off [VIDIOC_STREAMOFF]\n"
               "  --streamon         turn the stream on [VIDIOC_STREAMON]\n"
@@ -1881,6 +1888,33 @@ static void parse_dv_bt_timings(char *optarg, struct v4l2_dv_timings *dv_timings
     }
 }
 
+static void parse_freq_seek(char *optarg, struct v4l2_hw_freq_seek &seek)
+{
+       char *value;
+       char *subs = optarg;
+
+       while (*subs != '\0') {
+               static const char *const subopts[] = {
+                       "dir",
+                       "wrap",
+                       "spacing",
+                       NULL
+               };
+
+               switch (parse_subopt(&subs, subopts, &value)) {
+               case 0:
+                       seek.seek_upward = strtol(value, 0L, 0);
+                       break;
+               case 1:
+                       seek.wrap_around = strtol(value, 0L, 0);
+                       break;
+               case 2:
+                       seek.spacing = strtol(value, 0L, 0);
+                       break;
+               }
+       }
+}
+
 static enum v4l2_field parse_field(const char *s)
 {
        if (!strcmp(s, "any")) return V4L2_FIELD_ANY;
@@ -2030,6 +2064,7 @@ int main(int argc, char **argv)
        double output_fps = 0;          /* set framerate speed, in fps */
        struct v4l2_frequency vf;       /* get_freq/set_freq */
        struct v4l2_standard vs;        /* list_std */
+       struct v4l2_hw_freq_seek freq_seek; /* freq-seek */
        int overlay;                    /* overlay */
        unsigned int *set_overlay_fmt_ptr = NULL;
        struct v4l2_format *overlay_fmt_ptr = NULL;
@@ -2071,6 +2106,7 @@ int main(int argc, char **argv)
        memset(&dv_preset, 0, sizeof(dv_preset));
        memset(&dv_timings, 0, sizeof(dv_timings));
        memset(&dv_enum_preset, 0, sizeof(dv_enum_preset));
+       memset(&freq_seek, 0, sizeof(freq_seek));
 
        if (argc == 1) {
                usage();
@@ -2562,6 +2598,9 @@ int main(int argc, char **argv)
                case OptSetDvBtTimings:
                        parse_dv_bt_timings(optarg, &dv_timings);
                        break;
+               case OptFreqSeek:
+                       parse_freq_seek(optarg, freq_seek);
+                       break;
                case ':':
                        fprintf(stderr, "Option `%s' requires a value\n",
                                argv[optind]);
@@ -3093,6 +3132,11 @@ int main(int argc, char **argv)
                        }
                }
        }
+       
+       if (options[OptFreqSeek]) {
+               freq_seek.type = V4L2_TUNER_RADIO;
+               doioctl(fd, VIDIOC_S_HW_FREQ_SEEK, &freq_seek);
+       }
 
        /* Get options */