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media: dvb_demux.h: add an enum for DMX_STATE_* and document

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kernel-doc allows documenting enums. Also, it makes clearer
about the meaning of each field on structures.

So, convert DMX_STATE_* to an enum.

While here, get rid of the unused DMX_STATE_SET.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2017-09-19 17:44:07 -04:00
parent 0463625ee9
commit 999f3d25b8
1 changed files with 18 additions and 7 deletions
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25
drivers/media/dvb-core/dvb_demux.h
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@ -37,11 +37,22 @@ enum dvb_dmx_filter_type {
DMX_TYPE_SEC,
};
#define DMX_STATE_FREE 0
#define DMX_STATE_ALLOCATED 1
#define DMX_STATE_SET 2
#define DMX_STATE_READY 3
#define DMX_STATE_GO 4
/**
* enum dvb_dmx_state - state machine for a demux filter.
*
* @DMX_STATE_FREE: indicates that the filter is freed.
* @DMX_STATE_ALLOCATED: indicates that the filter was allocated
* to be used.
* @DMX_STATE_READY: indicates that the filter is ready
* to be used.
* @DMX_STATE_GO: indicates that the filter is running.
*/
enum dvb_dmx_state {
DMX_STATE_FREE,
DMX_STATE_ALLOCATED,
DMX_STATE_READY,
DMX_STATE_GO,
};
#define DVB_DEMUX_MASK_MAX 18
@ -58,7 +69,7 @@ struct dvb_demux_filter {
struct dvb_demux_filter *next;
struct dvb_demux_feed *feed;
int index;
int state;
enum dvb_dmx_state state;
enum dvb_dmx_filter_type type;
u16 hw_handle;
@ -81,7 +92,7 @@ struct dvb_demux_feed {
struct dvb_demux *demux;
void *priv;
enum dvb_dmx_filter_type type;
int state;
enum dvb_dmx_state state;
u16 pid;
ktime_t timeout;