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Multi transceiver support

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This can be multiple transceivers on multiple sound cards.

Two transceivers can be bundled on one sound device as well, using both channels.
This commit is contained in:
Andreas Eversberg
2016-04-25 20:20:54 +02:00
parent de0ce7ba98
commit 7434e21dc2
20 changed files with 709 additions and 161 deletions
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18
src/cnetz/cnetz.h
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@@ -8,13 +8,21 @@
/* dsp modes of transmission */
enum dsp_mode {
DSP_SCHED_NONE = 0, /* use for sheduling: nothing to shedule */
DSP_MODE_OFF, /* send nothing on unused SpK */
DSP_MODE_OGK, /* send "Telegramm" on OgK */
DSP_MODE_SPK_K, /* send concentrated "Telegramm" SpK */
DSP_MODE_SPK_V, /* send distributed "Telegramm" SpK */
};
enum cnetz_chan_type {
CHAN_TYPE_OGK, /* pure standard organization channel (channel 131) */
CHAN_TYPE_SPK, /* pure traffic channel */
CHAN_TYPE_OGK_SPK, /* combined OGK + SPK; note: some phones may reject SPK on channel 131 */
};
/* current state of c-netz sender */
enum cnetz_state {
CNETZ_NULL, /* before power on */
CNETZ_IDLE, /* broadcasting LR/MLR on Ogk */
CNETZ_BUSY, /* currently processing a call, no other transaction allowed */
};
@@ -85,6 +93,7 @@ struct clock_speed {
/* instance of cnetz sender */
typedef struct cnetz {
sender_t sender;
enum cnetz_chan_type chan_type; /* channel type */
scrambler_t scrambler_tx; /* mirror what we transmit to MS */
scrambler_t scrambler_rx; /* mirror what we receive from MS */
compander_t cstate;
@@ -125,6 +134,9 @@ typedef struct cnetz {
int dsp_speech_length; /* number of samples */
int dsp_speech_pos; /* current position in buffer */
int frame_last_count; /* master's count position of last frame sync */
double frame_last_phase; /* master's bit phase of last frame sync */
/* audio offset removal */
double offset_removal_factor; /* how much to remove every sample */
int16_t offset_last_sample; /* last sample of last audio chunk */
@@ -137,8 +149,12 @@ typedef struct cnetz {
} cnetz_t;
double cnetz_kanal2freq(int kanal, int unterband);
void cnetz_channel_list(void);
int cnetz_channel_by_short_name(const char *short_name);
const char *chan_type_short_name(enum cnetz_chan_type chan_type);
const char *chan_type_long_name(enum cnetz_chan_type chan_type);
int cnetz_init(void);
int cnetz_create(const char *sounddev, int samplerate, int pre_emphasis, int de_emphasis, const char *write_wave, const char *read_wave, int kanal, int auth, int ms_power, int measure_speed, double clock_speed[2], double deviation, double noise, int loopback);
int cnetz_create(int kanal, enum cnetz_chan_type chan_type, const char *sounddev, int samplerate, int cross_channels, int auth, int ms_power, int measure_speed, double clock_speed[2], double deviation, double noise, int pre_emphasis, int de_emphasis, const char *write_wave, const char *read_wave, int loopback);
void cnetz_destroy(sender_t *sender);
void cnetz_sync_frame(cnetz_t *cnetz, double sync, int ts);
const struct telegramm *cnetz_transmit_telegramm_rufblock(cnetz_t *cnetz);