From 9aa4357e9b10b92acb85e30834f8eb4aa7b94554 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Fri, 7 Feb 2014 02:46:16 -0300 Subject: [PATCH] [media] v4l: add control for RF tuner PLL lock flag Add volatile boolean control to indicate if tuner frequency synthesizer is locked to requested frequency. That means tuner is able to receive given frequency. Control is named as "PLL lock", since frequency synthesizers are based of phase-locked-loop. Maybe more general name could be wise still? Cc: Hans Verkuil Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-ctrls.c | 5 +++++ include/uapi/linux/v4l2-controls.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 48550b0eca2e..55c683254102 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -869,6 +869,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_RF_TUNER_IF_GAIN: return "IF Gain"; case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: return "Bandwidth, Auto"; case V4L2_CID_RF_TUNER_BANDWIDTH: return "Bandwidth"; + case V4L2_CID_RF_TUNER_PLL_LOCK: return "PLL Lock"; default: return NULL; } @@ -922,6 +923,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: case V4L2_CID_RF_TUNER_IF_GAIN_AUTO: case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: + case V4L2_CID_RF_TUNER_PLL_LOCK: *type = V4L2_CTRL_TYPE_BOOLEAN; *min = 0; *max = *step = 1; @@ -1106,6 +1108,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_DV_RX_POWER_PRESENT: *flags |= V4L2_CTRL_FLAG_READ_ONLY; break; + case V4L2_CID_RF_TUNER_PLL_LOCK: + *flags |= V4L2_CTRL_FLAG_VOLATILE; + break; } } EXPORT_SYMBOL(v4l2_ctrl_fill); diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 405279f3c326..2ac5597f3ee1 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -912,5 +912,6 @@ enum v4l2_deemphasis { #define V4L2_CID_RF_TUNER_MIXER_GAIN (V4L2_CID_RF_TUNER_CLASS_BASE + 52) #define V4L2_CID_RF_TUNER_IF_GAIN_AUTO (V4L2_CID_RF_TUNER_CLASS_BASE + 61) #define V4L2_CID_RF_TUNER_IF_GAIN (V4L2_CID_RF_TUNER_CLASS_BASE + 62) +#define V4L2_CID_RF_TUNER_PLL_LOCK (V4L2_CID_RF_TUNER_CLASS_BASE + 91) #endif -- 2.20.1