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authorHans Verkuil <hverkuil@xs4all.nl>2009-03-29 19:20:26 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-06 21:44:21 -0300
commitcc26b076cf8b1040ccc514302ef9a24042272ec3 (patch)
tree6b41545a2d59f531cffd32d7161dcabc1d40d0e1 /include/media
parent7c9fc9d50f97c9a6733ff1a22b6e31bcd91778e2 (diff)
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V4L/DVB (11369): v4l2-subdev: add load_fw and use that instead of abusing core->init.
The init callback was used in several places to load firmware. Make a separate load_fw callback for that. This makes the code a lot more understandable. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-subdev.h17
1 files changed, 10 insertions, 7 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index c84ff88c913..38b89cf7c99 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -89,7 +89,9 @@ struct v4l2_crystal_freq {
values. Do not use for new drivers and should be removed in existing
drivers.
- reset: generic reset command. The argument selects which subsystems to
+ load_fw: load firmware.
+
+ reset: generic reset command. The argument selects which subsystems to
reset. Passing 0 will always reset the whole chip. Do not use for new
drivers without discussing this first on the linux-media mailinglist.
There should be no reason normally to reset a device.
@@ -101,6 +103,7 @@ struct v4l2_subdev_core_ops {
int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip);
int (*log_status)(struct v4l2_subdev *sd);
int (*init)(struct v4l2_subdev *sd, u32 val);
+ int (*load_fw)(struct v4l2_subdev *sd);
int (*reset)(struct v4l2_subdev *sd, u32 val);
int (*s_gpio)(struct v4l2_subdev *sd, u32 val);
int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
@@ -175,31 +178,31 @@ struct v4l2_subdev_audio_ops {
v4l2_sliced_vbi_data struct. If no valid VBI data was found, then the
type field is set to 0 on return.
- s_vbi_data: used to generate VBI signals on a video signal.
+ s_vbi_data: used to generate VBI signals on a video signal.
v4l2_sliced_vbi_data is filled with the data packets that should be
output. Note that if you set the line field to 0, then that VBI signal
is disabled. If no valid VBI data was found, then the type field is
set to 0 on return.
- g_vbi_data: used to obtain the sliced VBI packet from a readback register.
+ g_vbi_data: used to obtain the sliced VBI packet from a readback register.
Not all video decoders support this. If no data is available because
the readback register contains invalid or erroneous data -EIO is
returned. Note that you must fill in the 'id' member and the 'field'
member (to determine whether CC data from the first or second field
should be obtained).
- s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
+ s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
video input devices.
- s_crystal_freq: sets the frequency of the crystal used to generate the
+ s_crystal_freq: sets the frequency of the crystal used to generate the
clocks. An extra flags field allows device specific configuration
regarding clock frequency dividers, etc. If not used, then set flags
to 0. If the frequency is not supported, then -EINVAL is returned.
- g_input_status: get input status. Same as the status field in the v4l2_input
+ g_input_status: get input status. Same as the status field in the v4l2_input
struct.
- s_routing: see s_routing in audio_ops, except this version is for video
+ s_routing: see s_routing in audio_ops, except this version is for video
devices.
*/
struct v4l2_subdev_video_ops {