diff options
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dv-timings.c | 49 | ||||
| -rw-r--r-- | include/media/v4l2-dv-timings.h | 9 |
2 files changed, 58 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c index 72cf2240bac4..917e58ce1f18 100644 --- a/drivers/media/v4l2-core/v4l2-dv-timings.c +++ b/drivers/media/v4l2-core/v4l2-dv-timings.c @@ -223,6 +223,55 @@ bool v4l_match_dv_timings(const struct v4l2_dv_timings *t1, } EXPORT_SYMBOL_GPL(v4l_match_dv_timings); +void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix, + const struct v4l2_dv_timings *t, bool detailed) +{ + const struct v4l2_bt_timings *bt = &t->bt; + u32 htot, vtot; + + if (t->type != V4L2_DV_BT_656_1120) + return; + + htot = V4L2_DV_BT_FRAME_WIDTH(bt); + vtot = V4L2_DV_BT_FRAME_HEIGHT(bt); + + if (prefix == NULL) + prefix = ""; + + pr_info("%s: %s%ux%u%s%u (%ux%u)\n", dev_prefix, prefix, + bt->width, bt->height, bt->interlaced ? "i" : "p", + (htot * vtot) > 0 ? ((u32)bt->pixelclock / (htot * vtot)) : 0, + htot, vtot); + + if (!detailed) + return; + + pr_info("%s: horizontal: fp = %u, %ssync = %u, bp = %u\n", + dev_prefix, bt->hfrontporch, + (bt->polarities & V4L2_DV_HSYNC_POS_POL) ? "+" : "-", + bt->hsync, bt->hbackporch); + pr_info("%s: vertical: fp = %u, %ssync = %u, bp = %u\n", + dev_prefix, bt->vfrontporch, + (bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-", + bt->vsync, bt->vbackporch); + pr_info("%s: pixelclock: %llu\n", dev_prefix, bt->pixelclock); + pr_info("%s: flags (0x%x):%s%s%s%s\n", dev_prefix, bt->flags, + (bt->flags & V4L2_DV_FL_REDUCED_BLANKING) ? + " REDUCED_BLANKING" : "", + (bt->flags & V4L2_DV_FL_CAN_REDUCE_FPS) ? + " CAN_REDUCE_FPS" : "", + (bt->flags & V4L2_DV_FL_REDUCED_FPS) ? + " REDUCED_FPS" : "", + (bt->flags & V4L2_DV_FL_HALF_LINE) ? + " HALF_LINE" : ""); + pr_info("%s: standards (0x%x):%s%s%s%s\n", dev_prefix, bt->standards, + (bt->standards & V4L2_DV_BT_STD_CEA861) ? " CEA" : "", + (bt->standards & V4L2_DV_BT_STD_DMT) ? " DMT" : "", + (bt->standards & V4L2_DV_BT_STD_CVT) ? " CVT" : "", + (bt->standards & V4L2_DV_BT_STD_GTF) ? " GTF" : ""); +} +EXPORT_SYMBOL_GPL(v4l2_print_dv_timings); + /* * CVT defines * Based on Coordinated Video Timings Standard diff --git a/include/media/v4l2-dv-timings.h b/include/media/v4l2-dv-timings.h index 4c7bb5491658..696e5c2fd176 100644 --- a/include/media/v4l2-dv-timings.h +++ b/include/media/v4l2-dv-timings.h @@ -76,6 +76,15 @@ bool v4l_match_dv_timings(const struct v4l2_dv_timings *measured, const struct v4l2_dv_timings *standard, unsigned pclock_delta); +/** v4l2_print_dv_timings() - log the contents of a dv_timings struct + * @dev_prefix:device prefix for each log line. + * @prefix: additional prefix for each log line, may be NULL. + * @t: the timings data. + * @detailed: if true, give a detailed log. + */ +void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix, + const struct v4l2_dv_timings *t, bool detailed); + /** v4l2_detect_cvt - detect if the given timings follow the CVT standard * @frame_height - the total height of the frame (including blanking) in lines. * @hfreq - the horizontal frequency in Hz. |