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xpp: init_card_6_3: parallel calibration

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FXS module type 6: Further reduces time of the initialization by writing
to several ports' chips in parallel.

Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
This commit is contained in:
Dima Stoliarov 2017-06-08 16:09:25 +03:00 committed by Tzafrir Cohen
parent 24648e6eb3
commit d9abf02894
1 changed files with 27 additions and 29 deletions
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56
drivers/dahdi/xpp/init_card_6_30
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@ -907,32 +907,30 @@ sub load_general_params($) {
}
}
sub calibrate_slics($$$$) {
my $slic = shift;
sub calibrate_slics($$$) {
my $cal0 = shift;
my $cal1 = shift;
my $cal2 = shift;
main::debug "Calibrating channel $slic";
write_reg($slic, 26, $cal0); # CAL0
write_reg($slic, 27, $cal1); # CAL1
write_reg($slic, 28, $cal2); # CAL2
write_reg($slic, 29, 0x80); # CAL3, CAN_EN
main::debug "Calibrating channels @SlicNums";
write_reg('*', 26, $cal0); # CAL0
write_reg('*', 27, $cal1); # CAL1
write_reg('*', 28, $cal2); # CAL2
write_reg('*', 29, 0x80); # CAL3, CAL_EN
# wait until all slics have finished calibration, or for timeout
# time periods in seconds:
my $sleep_time = 0.001;
my $timeout_time = 0.600; # Maximum from the spec
my @curr_slics;
my @curr_slics = @SlicNums;
my $sleep_cnt = 0;
push(@curr_slics, $slic);
CALIB_LOOP:
while(1) {
main::mysleep($sleep_time);
my @next_slics;
for my $slic (@curr_slics) {
main::debug("checking slic $slic");
my $val = read_reg($slic, 29, 'D');
main::debug("checking slic $slic: $val.");
push(@next_slics, $slic) if ($val & 0x80) != 0;
}
@curr_slics = @next_slics;
@ -949,19 +947,25 @@ CALIB_LOOP:
}
sub dc_powerup($) {
my $slic = shift;
FXS::set_user_mode($slic, 1); # Turn on user mode
write_ram($slic, 1538, 0x700000, 3); # PD_DCDC, In case OV or UV previously occurred
# write_ram($slic, 1555, 0x100000, 3); # DCDC_CPUMP, Turn on charge pump
my $slics_ref = shift;
my @slics = @{ $slics_ref };
foreach my $slic (@slics) {
FXS::set_user_mode($slic, 1); # Turn on user mode
}
write_ram('*', 1538, 0x700000, 3); # PD_DCDC, In case OV or UV previously occurred
# write_ram('*', 1555, 0x100000, 3); # DCDC_CPUMP, Turn on charge pump
main::mysleep(0.010);
# write_ram($slic, 1538, 0x00600000, 3); # start up converter
# write_ram('*', 1538, 0x00600000, 3); # start up converter
main::mysleep(0.500);
write_ram($slic, 1555, 0x000000, 3); # DCDC_CPUMP, Turn off charge pump
write_ram($slic, 1542, 0x300000, 3); # PD_OCLO
write_ram($slic, 1551, 0x00000000, 3); # sClear DCDC status
write_ram('*', 1555, 0x000000, 3); # DCDC_CPUMP, Turn off charge pump
write_ram('*', 1542, 0x300000, 3); # PD_OCLO
write_ram('*', 1551, 0x00000000, 3); # sClear DCDC status
main::mysleep(0.030);
write_ram($slic, 1538, 0x00400000, 3);
FXS::set_user_mode($slic, 0); # Turn off user mode
write_ram('*', 1538, 0x00400000, 3);
foreach my $slic (@slics) {
FXS::set_user_mode($slic, 0); # Turn off user mode
}
}
sub read_defaults() {
@ -1130,21 +1134,15 @@ FXS::load_general_params(\@SlicNums);
if($settings{fxs_skip_calib}) {
main::logit "==== WARNING: SKIPPED SLIC CALIBRATION =====";
} else {
foreach my $slic (@SlicNums) {
FXS::calibrate_slics($slic, 0x00, 0x00, 0x01);
}
FXS::calibrate_slics(0x00, 0x00, 0x01);
main::mysleep(0.060);
foreach my $slic (@SlicNums) {
FXS::dc_powerup($slic);
FXS::calibrate_slics($slic, 0x00, 0xC0, 0x18); # remaining cals (except mads, lb)
}
FXS::dc_powerup(\@SlicNums);
FXS::calibrate_slics(0x00, 0xC0, 0x18); # remaining cals (except mads, lb)
main::mysleep(0.700);
foreach my $slic (@SlicNums) {
FXS::set_linefeed($slic, 0);
FXS::set_linefeed($slic, 1);
}
main::mysleep(0.010);
#FXS::calibrate_slics($slic, 0x0F, 0x00, 0x00); #
main::mysleep(1.000);
}