[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: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab
Родитель
548e5ae0bd
Коммит
abfc97f722
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@ -32,9 +32,9 @@
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#include <linux/time.h>
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#include <linux/dvb/dmx.h>
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/*--------------------------------------------------------------------------*/
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/* Common definitions */
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/*--------------------------------------------------------------------------*/
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/*
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* Common definitions
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*/
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/*
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* DMX_MAX_FILTER_SIZE: Maximum length (in bytes) of a section/PES filter.
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@ -45,7 +45,8 @@
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#endif
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/*
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* DMX_MAX_SECFEED_SIZE: Maximum length (in bytes) of a private section feed filter.
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* DMX_MAX_SECFEED_SIZE: Maximum length (in bytes) of a private section feed
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* filter.
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*/
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#ifndef DMX_MAX_SECTION_SIZE
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@ -55,18 +56,30 @@
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#define DMX_MAX_SECFEED_SIZE (DMX_MAX_SECTION_SIZE + 188)
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#endif
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/*--------------------------------------------------------------------------*/
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/* TS packet reception */
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/*--------------------------------------------------------------------------*/
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/*
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* TS packet reception
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*/
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/* TS filter type for set() */
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#define TS_PACKET 1 /* send TS packets (188 bytes) to callback (default) */
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#define TS_PAYLOAD_ONLY 2 /* in case TS_PACKET is set, only send the TS
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payload (<=184 bytes per packet) to callback */
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#define TS_DECODER 4 /* send stream to built-in decoder (if present) */
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#define TS_DEMUX 8 /* in case TS_PACKET is set, send the TS to
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the demux device, not to the dvr device */
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#define TS_PACKET 1 /*
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* send TS packets (188 bytes) to callback
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* (default)
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*/
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#define TS_PAYLOAD_ONLY 2 /*
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* in case TS_PACKET is set, only send the TS
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* payload (<=184 bytes per packet) to callback
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*/
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#define TS_DECODER 4 /*
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* send stream to built-in decoder (if present)
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*/
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#define TS_DEMUX 8 /*
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* in case TS_PACKET is set, send the TS to
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* the demux device, not to the dvr device
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*/
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/**
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* struct dmx_ts_feed - Structure that contains a TS feed filter
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@ -86,19 +99,19 @@ struct dmx_ts_feed {
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int is_filtering;
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struct dmx_demux *parent;
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void *priv;
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int (*set) (struct dmx_ts_feed *feed,
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u16 pid,
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int type,
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enum dmx_ts_pes pes_type,
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size_t circular_buffer_size,
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struct timespec timeout);
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int (*start_filtering) (struct dmx_ts_feed* feed);
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int (*stop_filtering) (struct dmx_ts_feed* feed);
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int (*set)(struct dmx_ts_feed *feed,
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u16 pid,
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int type,
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enum dmx_ts_pes pes_type,
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size_t circular_buffer_size,
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struct timespec timeout);
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int (*start_filtering)(struct dmx_ts_feed *feed);
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int (*stop_filtering)(struct dmx_ts_feed *feed);
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};
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/*--------------------------------------------------------------------------*/
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/* Section reception */
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/*--------------------------------------------------------------------------*/
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/*
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* Section reception
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*/
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/**
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* struct dmx_section_filter - Structure that describes a section filter
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@ -119,11 +132,11 @@ struct dmx_ts_feed {
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* equal to filter_value in all the tested bit positions.
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*/
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struct dmx_section_filter {
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u8 filter_value [DMX_MAX_FILTER_SIZE];
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u8 filter_mask [DMX_MAX_FILTER_SIZE];
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u8 filter_mode [DMX_MAX_FILTER_SIZE];
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struct dmx_section_feed* parent; /* Back-pointer */
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void* priv; /* Pointer to private data of the API client */
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u8 filter_value[DMX_MAX_FILTER_SIZE];
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u8 filter_mask[DMX_MAX_FILTER_SIZE];
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u8 filter_mode[DMX_MAX_FILTER_SIZE];
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struct dmx_section_feed *parent; /* Back-pointer */
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void *priv; /* Pointer to private data of the API client */
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};
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/**
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@ -139,7 +152,7 @@ struct dmx_section_filter {
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* is in progress on this section feed. If a filter cannot
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* be allocated, the function fails with -ENOSPC.
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* @release_filter: This function releases all the resources of a
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* previously allocated section filter. The function
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* previously allocated section filter. The function
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* should not be called while filtering is in progress
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* on this section feed. After calling this function,
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* the caller should not try to dereference the filter
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@ -153,8 +166,8 @@ struct dmx_section_filter {
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*/
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struct dmx_section_feed {
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int is_filtering;
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struct dmx_demux* parent;
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void* priv;
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struct dmx_demux *parent;
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void *priv;
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int check_crc;
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@ -166,33 +179,33 @@ struct dmx_section_feed {
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u16 secbufp, seclen, tsfeedp;
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/* public: */
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int (*set) (struct dmx_section_feed* feed,
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u16 pid,
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size_t circular_buffer_size,
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int check_crc);
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int (*allocate_filter) (struct dmx_section_feed* feed,
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struct dmx_section_filter** filter);
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int (*release_filter) (struct dmx_section_feed* feed,
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struct dmx_section_filter* filter);
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int (*start_filtering) (struct dmx_section_feed* feed);
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int (*stop_filtering) (struct dmx_section_feed* feed);
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int (*set)(struct dmx_section_feed *feed,
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u16 pid,
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size_t circular_buffer_size,
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int check_crc);
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int (*allocate_filter)(struct dmx_section_feed *feed,
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struct dmx_section_filter **filter);
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int (*release_filter)(struct dmx_section_feed *feed,
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struct dmx_section_filter *filter);
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int (*start_filtering)(struct dmx_section_feed *feed);
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int (*stop_filtering)(struct dmx_section_feed *feed);
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};
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/*--------------------------------------------------------------------------*/
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/* Callback functions */
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/*--------------------------------------------------------------------------*/
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/*
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* Callback functions
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*/
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typedef int (*dmx_ts_cb) ( const u8 * buffer1,
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size_t buffer1_length,
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const u8 * buffer2,
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size_t buffer2_length,
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struct dmx_ts_feed* source);
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typedef int (*dmx_ts_cb)(const u8 *buffer1,
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size_t buffer1_length,
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const u8 *buffer2,
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size_t buffer2_length,
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struct dmx_ts_feed *source);
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typedef int (*dmx_section_cb) ( const u8 * buffer1,
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size_t buffer1_len,
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const u8 * buffer2,
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size_t buffer2_len,
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struct dmx_section_filter * source);
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typedef int (*dmx_section_cb)(const u8 *buffer1,
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size_t buffer1_len,
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const u8 *buffer2,
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size_t buffer2_len,
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struct dmx_section_filter *source);
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/*--------------------------------------------------------------------------*/
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/* DVB Front-End */
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@ -229,9 +242,9 @@ struct dmx_frontend {
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enum dmx_frontend_source source;
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};
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/*--------------------------------------------------------------------------*/
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/* MPEG-2 TS Demux */
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/*--------------------------------------------------------------------------*/
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/*
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* MPEG-2 TS Demux
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*/
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/*
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* Flags OR'ed in the capabilities field of struct dmx_demux.
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@ -255,7 +268,8 @@ struct dmx_frontend {
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*.
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*/
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#define DMX_FE_ENTRY(list) list_entry(list, struct dmx_frontend, connectivity_list)
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#define DMX_FE_ENTRY(list) \
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list_entry(list, struct dmx_frontend, connectivity_list)
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/**
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* struct dmx_demux - Structure that contains the demux capabilities and
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@ -269,7 +283,7 @@ struct dmx_frontend {
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*
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* @open: This function reserves the demux for use by the caller and, if
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* necessary, initializes the demux. When the demux is no longer needed,
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* the function @close should be called. It should be possible for
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* the function @close should be called. It should be possible for
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* multiple clients to access the demux at the same time. Thus, the
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* function implementation should increment the demux usage count when
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* @open is called and decrement it when @close is called.
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@ -277,7 +291,7 @@ struct dmx_frontend {
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* instance data.
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* It returns
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* 0 on success;
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* -EUSERS, if maximum usage count was reached;
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* -EUSERS, if maximum usage count was reached;
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* -EINVAL, on bad parameter.
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*
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* @close: This function reserves the demux for use by the caller and, if
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@ -408,7 +422,7 @@ struct dmx_frontend {
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* call can be used as a parameter for @connect_frontend. The include
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* file demux.h contains the macro DMX_FE_ENTRY() for converting an
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* element of the generic type struct &list_head * to the type
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* struct &dmx_frontend *. The caller must not free the memory of any of
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* struct &dmx_frontend *. The caller must not free the memory of any of
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* the elements obtained via this function call.
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* The @demux function parameter contains a pointer to the demux API and
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* instance data.
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@ -450,44 +464,45 @@ struct dmx_frontend {
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struct dmx_demux {
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u32 capabilities;
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struct dmx_frontend* frontend;
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void* priv;
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int (*open) (struct dmx_demux* demux);
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int (*close) (struct dmx_demux* demux);
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int (*write) (struct dmx_demux* demux, const char __user *buf, size_t count);
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int (*allocate_ts_feed) (struct dmx_demux* demux,
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struct dmx_ts_feed** feed,
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dmx_ts_cb callback);
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int (*release_ts_feed) (struct dmx_demux* demux,
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struct dmx_ts_feed* feed);
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int (*allocate_section_feed) (struct dmx_demux* demux,
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struct dmx_section_feed** feed,
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dmx_section_cb callback);
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int (*release_section_feed) (struct dmx_demux* demux,
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struct dmx_section_feed* feed);
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int (*add_frontend) (struct dmx_demux* demux,
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struct dmx_frontend* frontend);
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int (*remove_frontend) (struct dmx_demux* demux,
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struct dmx_frontend* frontend);
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struct list_head* (*get_frontends) (struct dmx_demux* demux);
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int (*connect_frontend) (struct dmx_demux* demux,
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struct dmx_frontend* frontend);
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int (*disconnect_frontend) (struct dmx_demux* demux);
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struct dmx_frontend *frontend;
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void *priv;
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int (*open)(struct dmx_demux *demux);
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int (*close)(struct dmx_demux *demux);
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int (*write)(struct dmx_demux *demux, const char __user *buf,
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size_t count);
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int (*allocate_ts_feed)(struct dmx_demux *demux,
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struct dmx_ts_feed **feed,
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dmx_ts_cb callback);
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int (*release_ts_feed)(struct dmx_demux *demux,
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struct dmx_ts_feed *feed);
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int (*allocate_section_feed)(struct dmx_demux *demux,
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struct dmx_section_feed **feed,
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dmx_section_cb callback);
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int (*release_section_feed)(struct dmx_demux *demux,
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struct dmx_section_feed *feed);
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int (*add_frontend)(struct dmx_demux *demux,
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struct dmx_frontend *frontend);
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int (*remove_frontend)(struct dmx_demux *demux,
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struct dmx_frontend *frontend);
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struct list_head *(*get_frontends)(struct dmx_demux *demux);
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int (*connect_frontend)(struct dmx_demux *demux,
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struct dmx_frontend *frontend);
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int (*disconnect_frontend)(struct dmx_demux *demux);
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int (*get_pes_pids) (struct dmx_demux* demux, u16 *pids);
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int (*get_pes_pids)(struct dmx_demux *demux, u16 *pids);
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/* private: Not used upstream and never documented */
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#if 0
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int (*get_caps) (struct dmx_demux* demux, struct dmx_caps *caps);
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int (*set_source) (struct dmx_demux* demux, const dmx_source_t *src);
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int (*get_caps)(struct dmx_demux *demux, struct dmx_caps *caps);
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int (*set_source)(struct dmx_demux *demux, const dmx_source_t *src);
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#endif
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/*
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* private: Only used at av7110, to read some data from firmware.
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* As this was never documented, we have no clue about what's
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* there, and its usage on other drivers aren't encouraged.
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* there, and its usage on other drivers aren't encouraged.
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*/
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int (*get_stc) (struct dmx_demux* demux, unsigned int num,
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u64 *stc, unsigned int *base);
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int (*get_stc)(struct dmx_demux *demux, unsigned int num,
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u64 *stc, unsigned int *base);
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};
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#endif /* #ifndef __DEMUX_H */
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