diff options
Diffstat (limited to 'src/nmt/tones.c')
| -rw-r--r-- | src/nmt/tones.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/nmt/tones.c b/src/nmt/tones.c new file mode 100644 index 0000000..d333066 --- /dev/null +++ b/src/nmt/tones.c @@ -0,0 +1,43 @@ + +#include <stdint.h> + +static int16_t pattern[] = { + 0, 5320, 10063, 13716, 15883, 16328, 15004, 12054, 7798, 2697, -2697, -7798, -12054, -15004, -16328, -15883, -13716, -10063, -5320, + //0, 2660, 5032, 6858, 7941, 8164, 7502, 6027, 3899, 1348, -1348, -3899, -6027, -7502, -8164, -7941, -6858, -5032, -2660, +}; + +static int16_t tone[7999]; + +extern int16_t *ringback_spl; +extern int ringback_size; +extern int ringback_max; +extern int16_t *busy_spl; +extern int busy_size; +extern int busy_max; +extern int16_t *congestion_spl; +extern int congestion_size; +extern int congestion_max; + +void init_nmt_tones(void) +{ + int i, j; + + for (i = 0, j = 0; i < 7999; i++) { + tone[i] = pattern[j++]; + if (j == 19) + j = 0; + } + + ringback_spl = tone; + ringback_size = 7999; + ringback_max = 8 * 5000; /* 1000 / 4000 */ + + busy_spl = tone; + busy_size = 1995; + busy_max = 8 * 500; /* 250 / 250 */ + + congestion_spl = tone; + congestion_size = 1995; + congestion_max = 8 * 500; /* 250 / 250 */ +} + |