Commit abfc97f7 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

[media] demux.h: make checkpatch.ph happy

There are lots of CodingStyle violations here. Now that we're
touching a log on this header files, adding the documentation
here, make sure that this will follow the Kernel CodingStyle.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 548e5ae0
......@@ -32,9 +32,9 @@
#include <linux/time.h>
#include <linux/dvb/dmx.h>
/*--------------------------------------------------------------------------*/
/* Common definitions */
/*--------------------------------------------------------------------------*/
/*
* Common definitions
*/
/*
* DMX_MAX_FILTER_SIZE: Maximum length (in bytes) of a section/PES filter.
......@@ -45,7 +45,8 @@
#endif
/*
* DMX_MAX_SECFEED_SIZE: Maximum length (in bytes) of a private section feed filter.
* DMX_MAX_SECFEED_SIZE: Maximum length (in bytes) of a private section feed
* filter.
*/
#ifndef DMX_MAX_SECTION_SIZE
......@@ -55,18 +56,30 @@
#define DMX_MAX_SECFEED_SIZE (DMX_MAX_SECTION_SIZE + 188)
#endif
/*--------------------------------------------------------------------------*/
/* TS packet reception */
/*--------------------------------------------------------------------------*/
/*
* TS packet reception
*/
/* TS filter type for set() */
#define TS_PACKET 1 /* send TS packets (188 bytes) to callback (default) */
#define TS_PAYLOAD_ONLY 2 /* in case TS_PACKET is set, only send the TS
payload (<=184 bytes per packet) to callback */
#define TS_DECODER 4 /* send stream to built-in decoder (if present) */
#define TS_DEMUX 8 /* in case TS_PACKET is set, send the TS to
the demux device, not to the dvr device */
#define TS_PACKET 1 /*
* send TS packets (188 bytes) to callback
* (default)
*/
#define TS_PAYLOAD_ONLY 2 /*
* in case TS_PACKET is set, only send the TS
* payload (<=184 bytes per packet) to callback
*/
#define TS_DECODER 4 /*
* send stream to built-in decoder (if present)
*/
#define TS_DEMUX 8 /*
* in case TS_PACKET is set, send the TS to
* the demux device, not to the dvr device
*/
/**
* struct dmx_ts_feed - Structure that contains a TS feed filter
......@@ -86,19 +99,19 @@ struct dmx_ts_feed {
int is_filtering;
struct dmx_demux *parent;
void *priv;
int (*set) (struct dmx_ts_feed *feed,
u16 pid,
int type,
enum dmx_ts_pes pes_type,
size_t circular_buffer_size,
struct timespec timeout);
int (*start_filtering) (struct dmx_ts_feed* feed);
int (*stop_filtering) (struct dmx_ts_feed* feed);
int (*set)(struct dmx_ts_feed *feed,
u16 pid,
int type,
enum dmx_ts_pes pes_type,
size_t circular_buffer_size,
struct timespec timeout);
int (*start_filtering)(struct dmx_ts_feed *feed);
int (*stop_filtering)(struct dmx_ts_feed *feed);
};
/*--------------------------------------------------------------------------*/
/* Section reception */
/*--------------------------------------------------------------------------*/
/*
* Section reception
*/
/**
* struct dmx_section_filter - Structure that describes a section filter
......@@ -119,11 +132,11 @@ struct dmx_ts_feed {
* equal to filter_value in all the tested bit positions.
*/
struct dmx_section_filter {
u8 filter_value [DMX_MAX_FILTER_SIZE];
u8 filter_mask [DMX_MAX_FILTER_SIZE];
u8 filter_mode [DMX_MAX_FILTER_SIZE];
struct dmx_section_feed* parent; /* Back-pointer */
void* priv; /* Pointer to private data of the API client */
u8 filter_value[DMX_MAX_FILTER_SIZE];
u8 filter_mask[DMX_MAX_FILTER_SIZE];
u8 filter_mode[DMX_MAX_FILTER_SIZE];
struct dmx_section_feed *parent; /* Back-pointer */
void *priv; /* Pointer to private data of the API client */
};
/**
......@@ -139,7 +152,7 @@ struct dmx_section_filter {
* is in progress on this section feed. If a filter cannot
* be allocated, the function fails with -ENOSPC.
* @release_filter: This function releases all the resources of a
* previously allocated section filter. The function
* previously allocated section filter. The function
* should not be called while filtering is in progress
* on this section feed. After calling this function,
* the caller should not try to dereference the filter
......@@ -153,8 +166,8 @@ struct dmx_section_filter {
*/
struct dmx_section_feed {
int is_filtering;
struct dmx_demux* parent;
void* priv;
struct dmx_demux *parent;
void *priv;
int check_crc;
......@@ -166,33 +179,33 @@ struct dmx_section_feed {
u16 secbufp, seclen, tsfeedp;
/* public: */
int (*set) (struct dmx_section_feed* feed,
u16 pid,
size_t circular_buffer_size,
int check_crc);
int (*allocate_filter) (struct dmx_section_feed* feed,
struct dmx_section_filter** filter);
int (*release_filter) (struct dmx_section_feed* feed,
struct dmx_section_filter* filter);
int (*start_filtering) (struct dmx_section_feed* feed);
int (*stop_filtering) (struct dmx_section_feed* feed);
int (*set)(struct dmx_section_feed *feed,
u16 pid,
size_t circular_buffer_size,
int check_crc);
int (*allocate_filter)(struct dmx_section_feed *feed,
struct dmx_section_filter **filter);
int (*release_filter)(struct dmx_section_feed *feed,
struct dmx_section_filter *filter);
int (*start_filtering)(struct dmx_section_feed *feed);
int (*stop_filtering)(struct dmx_section_feed *feed);
};
/*--------------------------------------------------------------------------*/
/* Callback functions */
/*--------------------------------------------------------------------------*/
/*
* Callback functions
*/
typedef int (*dmx_ts_cb) ( const u8 * buffer1,
size_t buffer1_length,
const u8 * buffer2,
size_t buffer2_length,
struct dmx_ts_feed* source);
typedef int (*dmx_ts_cb)(const u8 *buffer1,
size_t buffer1_length,
const u8 *buffer2,
size_t buffer2_length,
struct dmx_ts_feed *source);
typedef int (*dmx_section_cb) ( const u8 * buffer1,
size_t buffer1_len,
const u8 * buffer2,
size_t buffer2_len,
struct dmx_section_filter * source);
typedef int (*dmx_section_cb)(const u8 *buffer1,
size_t buffer1_len,
const u8 *buffer2,
size_t buffer2_len,
struct dmx_section_filter *source);
/*--------------------------------------------------------------------------*/
/* DVB Front-End */
......@@ -229,9 +242,9 @@ struct dmx_frontend {
enum dmx_frontend_source source;
};
/*--------------------------------------------------------------------------*/
/* MPEG-2 TS Demux */
/*--------------------------------------------------------------------------*/
/*
* MPEG-2 TS Demux
*/
/*
* Flags OR'ed in the capabilities field of struct dmx_demux.
......@@ -255,7 +268,8 @@ struct dmx_frontend {
*.
*/
#define DMX_FE_ENTRY(list) list_entry(list, struct dmx_frontend, connectivity_list)
#define DMX_FE_ENTRY(list) \
list_entry(list, struct dmx_frontend, connectivity_list)
/**
* struct dmx_demux - Structure that contains the demux capabilities and
......@@ -269,7 +283,7 @@ struct dmx_frontend {
*
* @open: This function reserves the demux for use by the caller and, if
* necessary, initializes the demux. When the demux is no longer needed,
* the function @close should be called. It should be possible for
* the function @close should be called. It should be possible for
* multiple clients to access the demux at the same time. Thus, the
* function implementation should increment the demux usage count when
* @open is called and decrement it when @close is called.
......@@ -277,7 +291,7 @@ struct dmx_frontend {
* instance data.
* It returns
* 0 on success;
* -EUSERS, if maximum usage count was reached;
* -EUSERS, if maximum usage count was reached;
* -EINVAL, on bad parameter.
*
* @close: This function reserves the demux for use by the caller and, if
......@@ -408,7 +422,7 @@ struct dmx_frontend {
* call can be used as a parameter for @connect_frontend. The include
* file demux.h contains the macro DMX_FE_ENTRY() for converting an
* element of the generic type struct &list_head * to the type
* struct &dmx_frontend *. The caller must not free the memory of any of
* struct &dmx_frontend *. The caller must not free the memory of any of
* the elements obtained via this function call.
* The @demux function parameter contains a pointer to the demux API and
* instance data.
......@@ -450,44 +464,45 @@ struct dmx_frontend {
struct dmx_demux {
u32 capabilities;
struct dmx_frontend* frontend;
void* priv;
int (*open) (struct dmx_demux* demux);
int (*close) (struct dmx_demux* demux);
int (*write) (struct dmx_demux* demux, const char __user *buf, size_t count);
int (*allocate_ts_feed) (struct dmx_demux* demux,
struct dmx_ts_feed** feed,
dmx_ts_cb callback);
int (*release_ts_feed) (struct dmx_demux* demux,
struct dmx_ts_feed* feed);
int (*allocate_section_feed) (struct dmx_demux* demux,
struct dmx_section_feed** feed,
dmx_section_cb callback);
int (*release_section_feed) (struct dmx_demux* demux,
struct dmx_section_feed* feed);
int (*add_frontend) (struct dmx_demux* demux,
struct dmx_frontend* frontend);
int (*remove_frontend) (struct dmx_demux* demux,
struct dmx_frontend* frontend);
struct list_head* (*get_frontends) (struct dmx_demux* demux);
int (*connect_frontend) (struct dmx_demux* demux,
struct dmx_frontend* frontend);
int (*disconnect_frontend) (struct dmx_demux* demux);
int (*get_pes_pids) (struct dmx_demux* demux, u16 *pids);
struct dmx_frontend *frontend;
void *priv;
int (*open)(struct dmx_demux *demux);
int (*close)(struct dmx_demux *demux);
int (*write)(struct dmx_demux *demux, const char __user *buf,
size_t count);
int (*allocate_ts_feed)(struct dmx_demux *demux,
struct dmx_ts_feed **feed,
dmx_ts_cb callback);
int (*release_ts_feed)(struct dmx_demux *demux,
struct dmx_ts_feed *feed);
int (*allocate_section_feed)(struct dmx_demux *demux,
struct dmx_section_feed **feed,
dmx_section_cb callback);
int (*release_section_feed)(struct dmx_demux *demux,
struct dmx_section_feed *feed);
int (*add_frontend)(struct dmx_demux *demux,
struct dmx_frontend *frontend);
int (*remove_frontend)(struct dmx_demux *demux,
struct dmx_frontend *frontend);
struct list_head *(*get_frontends)(struct dmx_demux *demux);
int (*connect_frontend)(struct dmx_demux *demux,
struct dmx_frontend *frontend);
int (*disconnect_frontend)(struct dmx_demux *demux);
int (*get_pes_pids)(struct dmx_demux *demux, u16 *pids);
/* private: Not used upstream and never documented */
#if 0
int (*get_caps) (struct dmx_demux* demux, struct dmx_caps *caps);
int (*set_source) (struct dmx_demux* demux, const dmx_source_t *src);
int (*get_caps)(struct dmx_demux *demux, struct dmx_caps *caps);
int (*set_source)(struct dmx_demux *demux, const dmx_source_t *src);
#endif
/*
* private: Only used at av7110, to read some data from firmware.
* As this was never documented, we have no clue about what's
* there, and its usage on other drivers aren't encouraged.
* there, and its usage on other drivers aren't encouraged.
*/
int (*get_stc) (struct dmx_demux* demux, unsigned int num,
u64 *stc, unsigned int *base);
int (*get_stc)(struct dmx_demux *demux, unsigned int num,
u64 *stc, unsigned int *base);
};
#endif /* #ifndef __DEMUX_H */
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