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| author | Steven Toth <stoth@linuxtv.org> | 2008-09-11 17:23:01 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 15:37:04 +0400 |
| commit | e7fee0f3aa111d42cdcfc1470cfdc21dde0cdbe2 (patch) | |
| tree | fedd63397870c4f97b26176ed3b7e2d660d77957 /include/linux/dvb/frontend.h | |
| parent | 56f0680a28397f4b412fc14f60ac380b910ee328 (diff) | |
| download | linux-e7fee0f3aa111d42cdcfc1470cfdc21dde0cdbe2.tar.xz | |
V4L/DVB (8996): S2API: typedefs replaced, _SEQ_'s removed, fixed 16 command arrays replaced
After discussion the following changes were made:
1. Removed the typedefs in frontend.h, use structures.
2. In the frontend.h, remove the 16 command limit on the API and
switch to a flexible variable length API. For practical reasons
a #define limits this to 64, this should be discussed.
3. Changed dvb-core ioctl handing to deal with variable sequences
of commands.
tune-v0.0.3.c is required to use this API, it contains the interface changes.
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/linux/dvb/frontend.h')
| -rw-r--r-- | include/linux/dvb/frontend.h | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index aeace74b5366..f667bf377a7b 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h @@ -251,11 +251,8 @@ struct dvb_frontend_event { * binary compatability. */ typedef enum dtv_cmd_types { - DTV_SEQ_UNDEFINED, - DTV_SEQ_START, - DTV_SEQ_CONTINUE, - DTV_SEQ_COMPLETE, - DTV_SEQ_TERMINATE, + DTV_TUNE, + DTV_CLEAR, DTV_SET_FREQUENCY, DTV_SET_MODULATION, @@ -348,22 +345,32 @@ struct dtv_cmds_h { __u32 reserved:30; /* Align */ }; -typedef struct { +struct dtv_property { __u32 cmd; + __u32 reserved[3]; union { + __s32 valuemin; + __s32 valuemax; __u32 data; struct { __u8 data[32]; __u32 len; + __u32 reserved1[3]; + void *reserved2; } buffer; } u; -} dtv_property_t; +} __attribute__ ((packed)); /* No more than 16 properties during any given ioctl */ -typedef dtv_property_t dtv_properties_t[16]; +struct dtv_properties { + __u32 num; + struct dtv_property *props; +}; + +#define DTV_IOCTL_MAX_MSGS 64 -#define FE_SET_PROPERTY _IOW('o', 82, dtv_properties_t) -#define FE_GET_PROPERTY _IOR('o', 83, dtv_properties_t) +#define FE_SET_PROPERTY _IOW('o', 82, struct dtv_properties) +#define FE_GET_PROPERTY _IOR('o', 83, struct dtv_properties) /** |