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target/fw/calypso: Fix dsp_load_tch_param to set fn_report for TCH/H 

The previous code was only valid for TCH/F ...

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2010-10-17 21:21:56 +02:00
parent aab5419af0
commit ba1cef1d23
1 changed files with 23 additions and 4 deletions
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27
src/target/firmware/calypso/dsp.c
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@ -482,11 +482,30 @@ void dsp_load_tch_param(struct gsm_time *next_time,
/* d_fn
----
bit [0..7] -> b_fn_report = (fn - (tn * 13) + 104) % 104)
bit [8..15] -> b_fn_sid = (fn % 104) */
fn = ((next_time->fn - (tn * 13) + 104) % 104) |
((next_time->fn % 104) << 8);
for TCH_F:
bit [0..7] -> b_fn_report = (fn - (tn * 13) + 104) % 104)
bit [8..15] -> b_fn_sid = (fn % 104)
for TCH_H:
tn_report = (tn & ~1) | subchannel
bit [0..7] -> b_fn_report = (fn - tn_report * 13) + 104) % 104)
bit [8..15] -> b_fn_sid = (fn % 104)
for other: irrelevant
*/
if (chan_type == TCH_F) {
fn = ((next_time->fn - (tn * 13) + 104) % 104) |
((next_time->fn % 104) << 8);
} else if (chan_type == TCH_H) {
uint8_t tn_report = (tn & ~1) | chan_sub;
fn = ((next_time->fn - (tn_report * 13) + 104) % 104) |
((next_time->fn % 104) << 8);
} else {
/* irrelevant */
fn = 0;
}
/* a_a5fn
------