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Diffstat (limited to 'include/media/v4l2-mediabus.h')
-rw-r--r--include/media/v4l2-mediabus.h80
1 files changed, 56 insertions, 24 deletions
diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 93f8afcb7a22..4d8626c468bc 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -12,6 +12,8 @@
#define V4L2_MEDIABUS_H
#include <linux/v4l2-mediabus.h>
+#include <linux/bitops.h>
+
/* Parallel flags */
/*
@@ -20,44 +22,44 @@
* horizontal and vertical synchronisation. In "Slave mode" the host is
* providing these signals to the slave.
*/
-#define V4L2_MBUS_MASTER (1 << 0)
-#define V4L2_MBUS_SLAVE (1 << 1)
+#define V4L2_MBUS_MASTER BIT(0)
+#define V4L2_MBUS_SLAVE BIT(1)
/*
* Signal polarity flags
* Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
* V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
* configuration of hardware that uses [HV]REF signals
*/
-#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2)
-#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3)
-#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4)
-#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5)
-#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6)
-#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7)
-#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8)
-#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9)
+#define V4L2_MBUS_HSYNC_ACTIVE_HIGH BIT(2)
+#define V4L2_MBUS_HSYNC_ACTIVE_LOW BIT(3)
+#define V4L2_MBUS_VSYNC_ACTIVE_HIGH BIT(4)
+#define V4L2_MBUS_VSYNC_ACTIVE_LOW BIT(5)
+#define V4L2_MBUS_PCLK_SAMPLE_RISING BIT(6)
+#define V4L2_MBUS_PCLK_SAMPLE_FALLING BIT(7)
+#define V4L2_MBUS_DATA_ACTIVE_HIGH BIT(8)
+#define V4L2_MBUS_DATA_ACTIVE_LOW BIT(9)
/* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
-#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10)
+#define V4L2_MBUS_FIELD_EVEN_HIGH BIT(10)
/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
-#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11)
+#define V4L2_MBUS_FIELD_EVEN_LOW BIT(11)
/* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
-#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1 << 12)
-#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1 << 13)
+#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH BIT(12)
+#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW BIT(13)
/* Serial flags */
/* How many lanes the client can use */
-#define V4L2_MBUS_CSI2_1_LANE (1 << 0)
-#define V4L2_MBUS_CSI2_2_LANE (1 << 1)
-#define V4L2_MBUS_CSI2_3_LANE (1 << 2)
-#define V4L2_MBUS_CSI2_4_LANE (1 << 3)
+#define V4L2_MBUS_CSI2_1_LANE BIT(0)
+#define V4L2_MBUS_CSI2_2_LANE BIT(1)
+#define V4L2_MBUS_CSI2_3_LANE BIT(2)
+#define V4L2_MBUS_CSI2_4_LANE BIT(3)
/* On which channels it can send video data */
-#define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4)
-#define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5)
-#define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6)
-#define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7)
+#define V4L2_MBUS_CSI2_CHANNEL_0 BIT(4)
+#define V4L2_MBUS_CSI2_CHANNEL_1 BIT(5)
+#define V4L2_MBUS_CSI2_CHANNEL_2 BIT(6)
+#define V4L2_MBUS_CSI2_CHANNEL_3 BIT(7)
/* Does it support only continuous or also non-continuous clock mode */
-#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8)
-#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9)
+#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK BIT(8)
+#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK BIT(9)
#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \
V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
@@ -91,6 +93,13 @@ struct v4l2_mbus_config {
unsigned int flags;
};
+/**
+ * v4l2_fill_pix_format - Ancillary routine that fills a &struct
+ * v4l2_pix_format fields from a &struct v4l2_mbus_framefmt.
+ *
+ * @pix_fmt: pointer to &struct v4l2_pix_format to be filled
+ * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
+ */
static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
{
@@ -103,6 +112,15 @@ static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
pix_fmt->xfer_func = mbus_fmt->xfer_func;
}
+/**
+ * v4l2_fill_pix_format - Ancillary routine that fills a &struct
+ * v4l2_mbus_framefmt from a &struct v4l2_pix_format and a
+ * data format code.
+ *
+ * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
+ * @pix_fmt: pointer to &struct v4l2_pix_format to be used as model
+ * @code: data format code (from &enum v4l2_mbus_pixelcode)
+ */
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format *pix_fmt,
u32 code)
@@ -117,6 +135,13 @@ static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
mbus_fmt->code = code;
}
+/**
+ * v4l2_fill_pix_format - Ancillary routine that fills a &struct
+ * v4l2_pix_format_mplane fields from a media bus structure.
+ *
+ * @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be filled
+ * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
+ */
static inline void v4l2_fill_pix_format_mplane(
struct v4l2_pix_format_mplane *pix_mp_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
@@ -130,6 +155,13 @@ static inline void v4l2_fill_pix_format_mplane(
pix_mp_fmt->xfer_func = mbus_fmt->xfer_func;
}
+/**
+ * v4l2_fill_pix_format - Ancillary routine that fills a &struct
+ * v4l2_mbus_framefmt from a &struct v4l2_pix_format_mplane.
+ *
+ * @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
+ * @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be used as model
+ */
static inline void v4l2_fill_mbus_format_mplane(
struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format_mplane *pix_mp_fmt)