diff options
Diffstat (limited to 'kernel/zaptel.h')
| -rw-r--r-- | kernel/zaptel.h | 146 |
1 files changed, 82 insertions, 64 deletions
diff --git a/kernel/zaptel.h b/kernel/zaptel.h index 157747a..fd57755 100644 --- a/kernel/zaptel.h +++ b/kernel/zaptel.h @@ -777,8 +777,30 @@ struct zt_hwgain{ /* * Transcoder operations */ + +/* ZT_TRANSCODE_OP is an older interface that is deprecated and no longer + * supported. + */ #define ZT_TRANSCODE_OP _IOWR(ZT_CODE, 93, int) +/* Transcoder related definitions */ + +struct zt_transcoder_formats { + __u32 srcfmt; + __u32 dstfmt; +}; +struct zt_transcoder_info { + __u32 tcnum; + char name[80]; + __u32 numchannels; + __u32 dstfmts; + __u32 srcfmts; +}; + +#define ZT_TC_CODE 'T' +#define ZT_TC_ALLOCATE _IOW(ZT_TC_CODE, 1, struct zt_transcoder_formats) +#define ZT_TC_GETINFO _IOWR(ZT_TC_CODE, 2, struct zt_transcoder_info) + /* * VoiceMail Waiting Indication (WMWI) -- implemented by low-level driver. * Value: number of waiting messages (hence 0: switch messages off). @@ -900,57 +922,6 @@ enum { #define ZT_TONEDETECT_ON (1 << 0) /* Detect tones */ #define ZT_TONEDETECT_MUTE (1 << 1) /* Mute audio in received channel */ -#define ZT_TRANSCODE_MAGIC 0x74a9c0de - -/* Operations */ -#define ZT_TCOP_ALLOCATE 1 /* Allocate/reset DTE channel */ -#define ZT_TCOP_TRANSCODE 2 /* Begin transcoding a block */ -#define ZT_TCOP_GETINFO 3 /* Get information (use zt_transcode_info) */ -#define ZT_TCOP_RELEASE 4 /* Release DTE channel */ -#define ZT_TCOP_TEST 5 /* test DTE device */ -typedef struct zt_transcode_info { - unsigned int op; - unsigned int tcnum; - char name[80]; - int numchannels; - unsigned int srcfmts; - unsigned int dstfmts; -} ZT_TRANSCODE_INFO; - -#define ZT_TCCONF_USETS (1 << 0) /* Use/update timestamp field */ -#define ZT_TCCONF_USESEQ (1 << 1) /* Use/update seqno field */ - -#define ZT_TCSTAT_DSTRDY (1 << 0) /* Destination data is ready */ -#define ZT_TCSTAT_DSTBUSY (1 << 1) /* Destination data is outstanding */ - -#define __ZT_TRANSCODE_BUFSIZ 16384 -#define ZT_TRANSCODE_HDRLEN 256 -#define ZT_TRANSCODE_BUFSIZ ((__ZT_TRANSCODE_BUFSIZ) - (ZT_TRANSCODE_HDRLEN)) -#define ZT_TRANSCODE_DSTOFFSET (((ZT_TRANSCODE_BUFSIZ) / 2) + ZT_TRANSCODE_HDRLEN) -#define ZT_TRANSCODE_SRCOFFSET (((ZT_TRANSCODE_BUFSIZ) / 2) + ZT_TRANSCODE_HDRLEN) - -typedef struct zt_transcode_header { - unsigned int srcfmt; /* See formats.h -- use TCOP_RESET when you change */ - unsigned int srcoffset; /* In bytes -- written by user */ - unsigned int srclen; /* In bytes -- written by user */ - unsigned int srctimestamp; /* In samples -- written by user (only used if ZT_TCCONF_USETS is set) */ - unsigned int srcseqno; /* In units -- written by user (only used if ZT_TCCONF_USESEQ is set) */ - - unsigned int dstfmt; /* See formats.h -- use TCOP_RESET when you change */ - unsigned int dstoffset; /* In bytes -- written by user */ - unsigned int dsttimestamp; /* In samples -- read by user */ - unsigned int dstseqno; /* In units -- read by user (only used if ZT_TCCONF_USESEQ is set) */ - unsigned int dstlen; /* In bytes -- read by user */ - unsigned int dstsamples; /* In timestamp units -- read by user */ - - unsigned int magic; /* Magic value -- ZT_TRANSCODE_MAGIC, read by user */ - unsigned int config; /* Read/write by user */ - unsigned int status; /* Read/write by user */ - unsigned char userhdr[ZT_TRANSCODE_HDRLEN - (sizeof(unsigned int) * 14)]; /* Storage for user parameters */ - unsigned char srcdata[ZT_TRANSCODE_BUFSIZ / 2]; /* Storage of source data */ - unsigned char dstdata[ZT_TRANSCODE_BUFSIZ / 2]; /* Storage of destination data */ -} ZT_TRANSCODE_HEADER; - struct zt_ring_cadence { int ringcadence[ZT_MAX_CADENCE]; }; @@ -1711,27 +1682,74 @@ struct zt_transcoder_channel { void *pvt; struct zt_transcoder *parent; wait_queue_head_t ready; - int errorstatus; - int offset; - unsigned int chan_built; - unsigned int built_fmts; - unsigned int flags; - unsigned int srcfmt; - unsigned int dstfmt; - struct zt_transcode_header *tch; + __u32 built_fmts; +#define ZT_TC_FLAG_BUSY 1 +#define ZT_TC_FLAG_CHAN_BUILT 2 +#define ZT_TC_FLAG_NONBLOCK 3 +#define ZT_TC_FLAG_DATA_WAITING 4 + unsigned long flags; + u32 dstfmt; + u32 srcfmt; }; -#define ZT_TC_FLAG_BUSY (1 << 0) -#define ZT_TC_FLAG_TRANSIENT (1 << 1) - +static inline int +zt_tc_is_built(struct zt_transcoder_channel *dtc) { + return test_bit(ZT_TC_FLAG_CHAN_BUILT, &dtc->flags); +} +static inline void +zt_tc_set_built(struct zt_transcoder_channel *dtc) { + set_bit(ZT_TC_FLAG_CHAN_BUILT, &dtc->flags); +} +static inline void +zt_tc_clear_built(struct zt_transcoder_channel *dtc) { + clear_bit(ZT_TC_FLAG_CHAN_BUILT, &dtc->flags); +} +static inline int +zt_tc_is_nonblock(struct zt_transcoder_channel *dtc) { + return test_bit(ZT_TC_FLAG_NONBLOCK, &dtc->flags); +} +static inline void +zt_tc_set_nonblock(struct zt_transcoder_channel *dtc) { + set_bit(ZT_TC_FLAG_NONBLOCK, &dtc->flags); +} +static inline void +zt_tc_clear_nonblock(struct zt_transcoder_channel *dtc) { + clear_bit(ZT_TC_FLAG_NONBLOCK, &dtc->flags); +} +static inline int +zt_tc_is_data_waiting(struct zt_transcoder_channel *dtc) { + return test_bit(ZT_TC_FLAG_DATA_WAITING, &dtc->flags); +} +static inline int +zt_tc_is_busy(struct zt_transcoder_channel *dtc) { + return test_bit(ZT_TC_FLAG_BUSY, &dtc->flags); +} +static inline void +zt_tc_set_busy(struct zt_transcoder_channel *dtc) { + set_bit(ZT_TC_FLAG_BUSY, &dtc->flags); +} +static inline void +zt_tc_clear_busy(struct zt_transcoder_channel *dtc) { + clear_bit(ZT_TC_FLAG_BUSY, &dtc->flags); +} +static inline void +zt_tc_set_data_waiting(struct zt_transcoder_channel *dtc) { + set_bit(ZT_TC_FLAG_DATA_WAITING, &dtc->flags); +} +static inline void +zt_tc_clear_data_waiting(struct zt_transcoder_channel *dtc) { + clear_bit(ZT_TC_FLAG_DATA_WAITING, &dtc->flags); +} struct zt_transcoder { - struct zt_transcoder *next; + struct list_head node; char name[80]; int numchannels; unsigned int srcfmts; unsigned int dstfmts; - int (*operation)(struct zt_transcoder_channel *channel, int op); + struct file_operations fops; + int (*allocate)(struct zt_transcoder_channel *channel); + int (*release)(struct zt_transcoder_channel *channel); /* Transcoder channels */ struct zt_transcoder_channel channels[0]; }; |