diff options
Diffstat (limited to 'drivers/dahdi/voicebus/GpakCust.c')
| -rw-r--r-- | drivers/dahdi/voicebus/GpakCust.c | 47 |
1 files changed, 33 insertions, 14 deletions
diff --git a/drivers/dahdi/voicebus/GpakCust.c b/drivers/dahdi/voicebus/GpakCust.c index 386c916..ccd880c 100644 --- a/drivers/dahdi/voicebus/GpakCust.c +++ b/drivers/dahdi/voicebus/GpakCust.c @@ -293,21 +293,9 @@ vpm_bh_out: return; } #include "adt_lec.c" -int vpmadt032_echocan_with_params(struct vpmadt032 *vpm, int channo, - struct dahdi_echocanparams *ecp, struct dahdi_echocanparam *p) +static void vpmadt032_check_and_schedule_update(struct vpmadt032 *vpm, int channo) { int update; - unsigned int ret; - - ret = adt_lec_parse_params(&vpm->desiredecstate[channo], ecp, p); - if (ret) - return ret; - - /* The driver cannot control the number of taps on the VPMADT032 - * module. Instead, it uses tap_length to enable or disable the echo - * cancellation. */ - vpm->desiredecstate[channo].tap_length = (ecp->tap_length) ? 1 : 0; - /* Only update the parameters if the new state of the echo canceller * is different than the current state. */ update = memcmp(&vpm->curecstate[channo], @@ -322,10 +310,41 @@ int vpmadt032_echocan_with_params(struct vpmadt032 *vpm, int channo, */ schedule_work(&vpm->work); } +} +int vpmadt032_echocan_create(struct vpmadt032 *vpm, int channo, + struct dahdi_echocanparams *ecp, struct dahdi_echocanparam *p) +{ + unsigned int ret; + ret = adt_lec_parse_params(&vpm->desiredecstate[channo], ecp, p); + if (ret) + return ret; + + if (vpm->options.debug & DEBUG_ECHOCAN) + printk(KERN_DEBUG "echocan: Channel is %d length %d\n", channo, ecp->tap_length); + + /* The driver cannot control the number of taps on the VPMADT032 + * module. Instead, it uses tap_length to enable or disable the echo + * cancellation. */ + vpm->desiredecstate[channo].tap_length = (ecp->tap_length) ? 1 : 0; + + vpmadt032_check_and_schedule_update(vpm, channo); return 0; } -EXPORT_SYMBOL(vpmadt032_echocan_with_params); +EXPORT_SYMBOL(vpmadt032_echocan_create); + +void vpmadt032_echocan_free(struct vpmadt032 *vpm, struct dahdi_chan *chan, + struct dahdi_echocan_state *ec) +{ + int channo = chan->chanpos - 1; + adt_lec_init_defaults(&vpm->desiredecstate[channo], 0); + + if (vpm->options.debug & DEBUG_ECHOCAN) + printk(KERN_DEBUG "echocan: Channel is %d length 0\n", channo); + + vpmadt032_check_and_schedule_update(vpm, channo); +} +EXPORT_SYMBOL(vpmadt032_echocan_free); struct vpmadt032 *vpmadt032_alloc(struct vpmadt032_options *options) { |