diff options
author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-07-01 13:31:17 -0400 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-27 16:56:08 -0400 |
commit | 91c7953005247c9563408bbdbf35e27de33e6ec3 (patch) | |
tree | 88769a0554da080023fc567bc6e41f9bc89c59c1 /include/media/v4l2-mediabus.h | |
parent | 7a05dfeddee9ffc2405230759ef32ecb603e3f48 (diff) |
[media] V4L: add media bus configuration subdev operations
Add media bus configuration types and two subdev operations to get
supported mediabus configurations and to set a specific configuration.
Subdevs can support several configurations, e.g., they can send video data
on 1 or several lanes, can be configured to use a specific CSI-2 channel,
in such cases subdevice drivers return bitmasks with all respective bits
set. When a set-configuration operation is called, it has to specify a
non-ambiguous configuration.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-mediabus.h')
-rw-r--r-- | include/media/v4l2-mediabus.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h index 971c7fa29614..6114007c8c74 100644 --- a/include/media/v4l2-mediabus.h +++ b/include/media/v4l2-mediabus.h | |||
@@ -13,6 +13,69 @@ | |||
13 | 13 | ||
14 | #include <linux/v4l2-mediabus.h> | 14 | #include <linux/v4l2-mediabus.h> |
15 | 15 | ||
16 | /* Parallel flags */ | ||
17 | /* | ||
18 | * Can the client run in master or in slave mode. By "Master mode" an operation | ||
19 | * mode is meant, when the client (e.g., a camera sensor) is producing | ||
20 | * horizontal and vertical synchronisation. In "Slave mode" the host is | ||
21 | * providing these signals to the slave. | ||
22 | */ | ||
23 | #define V4L2_MBUS_MASTER (1 << 0) | ||
24 | #define V4L2_MBUS_SLAVE (1 << 1) | ||
25 | /* Which signal polarities it supports */ | ||
26 | /* Note: in BT.656 mode HSYNC and VSYNC are unused */ | ||
27 | #define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2) | ||
28 | #define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3) | ||
29 | #define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4) | ||
30 | #define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5) | ||
31 | #define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6) | ||
32 | #define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7) | ||
33 | #define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8) | ||
34 | #define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9) | ||
35 | |||
36 | /* Serial flags */ | ||
37 | /* How many lanes the client can use */ | ||
38 | #define V4L2_MBUS_CSI2_1_LANE (1 << 0) | ||
39 | #define V4L2_MBUS_CSI2_2_LANE (1 << 1) | ||
40 | #define V4L2_MBUS_CSI2_3_LANE (1 << 2) | ||
41 | #define V4L2_MBUS_CSI2_4_LANE (1 << 3) | ||
42 | /* On which channels it can send video data */ | ||
43 | #define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4) | ||
44 | #define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5) | ||
45 | #define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6) | ||
46 | #define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7) | ||
47 | /* Does it support only continuous or also non-continuous clock mode */ | ||
48 | #define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8) | ||
49 | #define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9) | ||
50 | |||
51 | #define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \ | ||
52 | V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE) | ||
53 | #define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \ | ||
54 | V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3) | ||
55 | |||
56 | /** | ||
57 | * v4l2_mbus_type - media bus type | ||
58 | * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync | ||
59 | * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can | ||
60 | * also be used for BT.1120 | ||
61 | * @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface | ||
62 | */ | ||
63 | enum v4l2_mbus_type { | ||
64 | V4L2_MBUS_PARALLEL, | ||
65 | V4L2_MBUS_BT656, | ||
66 | V4L2_MBUS_CSI2, | ||
67 | }; | ||
68 | |||
69 | /** | ||
70 | * v4l2_mbus_config - media bus configuration | ||
71 | * @type: in: interface type | ||
72 | * @flags: in / out: configuration flags, depending on @type | ||
73 | */ | ||
74 | struct v4l2_mbus_config { | ||
75 | enum v4l2_mbus_type type; | ||
76 | unsigned int flags; | ||
77 | }; | ||
78 | |||
16 | static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, | 79 | static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, |
17 | const struct v4l2_mbus_framefmt *mbus_fmt) | 80 | const struct v4l2_mbus_framefmt *mbus_fmt) |
18 | { | 81 | { |