Provide a new option '--reset-controls' which will enumerate the available controls on a device or sub-device, and re-initialise them to defaults.
Signed-off-by: Kieran Bingham <kieran.bing...@ideasonboard.com> --- v2: - Rebase and rework to sit on top of the compound control changes With this patch, and the updated VSP-Tests series, the M3-N now successfully passes all of the tests using the VSP1. This patch is available on the 'vsp' branch at: https://github.com/kbingham/yavta.git yavta.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 54 insertions(+), 2 deletions(-) diff --git a/yavta.c b/yavta.c index 625a93ba879d..656ead0f0a37 100644 --- a/yavta.c +++ b/yavta.c @@ -1547,7 +1547,43 @@ static void video_set_control(struct device *dev, unsigned int id, free(ctrl.ptr); } -static void video_list_controls(struct device *dev) +static int video_reset_control(struct device *dev, unsigned int id) +{ + struct v4l2_query_ext_ctrl query; + struct v4l2_ext_control ctrl; + int ret; + + ret = query_control(dev, id, &query); + if (ret < 0) + return ret; + + if (query.type == V4L2_CTRL_TYPE_CTRL_CLASS) + return query.id; + + /* Skip controls that we cannot (or should not) update. */ + if (query.flags & (V4L2_CTRL_FLAG_DISABLED + | V4L2_CTRL_FLAG_VOLATILE + | V4L2_CTRL_FLAG_READ_ONLY)) + return query.id; + + ctrl.id = query.id; + ctrl.value = query.default_value; + + ret = set_control(dev, &query, &ctrl); + if (ret < 0) { + printf("unable to reset control 0x%8.8x: %s (%d).\n", + id, strerror(errno), errno); + } else { + printf("control 0x%08x reset to ", id); + + video_print_control_value(&query, &ctrl); + printf("\n"); + } + + return query.id; +} + +static void video_list_controls(struct device *dev, bool reset) { unsigned int nctrls = 0; unsigned int id; @@ -1568,6 +1604,12 @@ static void video_list_controls(struct device *dev) if (ret < 0) break; + if (reset) { + ret = video_reset_control(dev, id); + if (ret < 0) + break; + } + id = ret; nctrls++; } @@ -2206,6 +2248,7 @@ static void usage(const char *argv0) printf(" --offset User pointer buffer offset from page start\n"); printf(" --premultiplied Color components are premultiplied by alpha value\n"); printf(" --queue-late Queue buffers after streamon, not before\n"); + printf(" --reset-controls Enumerate available controls and reset to defaults\n"); printf(" --requeue-last Requeue the last buffers before streamoff\n"); printf(" --timestamp-source Set timestamp source on output buffers [eof, soe]\n"); printf(" --skip n Skip the first n frames\n"); @@ -2229,6 +2272,7 @@ static void usage(const char *argv0) #define OPT_PREMULTIPLIED 269 #define OPT_QUEUE_LATE 270 #define OPT_DATA_PREFIX 271 +#define OPT_RESET_CONTROLS 272 static struct option opts[] = { {"buffer-size", 1, 0, OPT_BUFFER_SIZE}, @@ -2257,6 +2301,7 @@ static struct option opts[] = { {"queue-late", 0, 0, OPT_QUEUE_LATE}, {"get-control", 1, 0, 'r'}, {"requeue-last", 0, 0, OPT_REQUEUE_LAST}, + {"reset-controls", 0, 0, OPT_RESET_CONTROLS}, {"realtime", 2, 0, 'R'}, {"size", 1, 0, 's'}, {"set-control", 1, 0, 'w'}, @@ -2284,6 +2329,7 @@ int main(int argc, char *argv[]) int do_enum_formats = 0, do_set_format = 0; int do_enum_inputs = 0, do_set_input = 0; int do_list_controls = 0, do_get_control = 0, do_set_control = 0; + int do_reset_controls = 0; int do_sleep_forever = 0, do_requeue_last = 0; int do_rt = 0, do_log_status = 0; int no_query = 0, do_queue_late = 0; @@ -2476,6 +2522,9 @@ int main(int argc, char *argv[]) case OPT_QUEUE_LATE: do_queue_late = 1; break; + case OPT_RESET_CONTROLS: + do_reset_controls = 1; + break; case OPT_REQUEUE_LAST: do_requeue_last = 1; break; @@ -2560,7 +2609,10 @@ int main(int argc, char *argv[]) video_set_control(&dev, ctrl_name, ctrl_value); if (do_list_controls) - video_list_controls(&dev); + video_list_controls(&dev, false); + + if (do_reset_controls) + video_list_controls(&dev, true); if (do_enum_formats) { printf("- Available formats:\n"); -- 2.17.1
