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Remove sound-specific QoS

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This commit is contained in:
Zane Kaminski 2024-10-08 07:18:53 -04:00
parent 882b1d9ce6
commit 6d565f39d4
1 changed files with 2 additions and 24 deletions
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26
cpld/CNT.v
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@ -13,7 +13,7 @@ module CNT(
input SndQoSCS,
/* QoS outputs */
output reg QoSEN,
output reg SndQoSReady);
output SndQoSReady);
/* E clock synchronization */
reg [1:0] Er; always @(posedge CLK) Er[1:0] <= { Er[0], E };
@ -57,13 +57,6 @@ module CNT(
always @(posedge CLK) QoSCSr <= (BACT && QoSCS) || !nRESin;
always @(posedge CLK) SndQoSCSr <= BACT && SndQoSCS;
/* Wait state timer */
reg [3:0] Wait;
always @(posedge CLK) begin
if (!BACT) Wait <= 0;
else Wait <= Wait+1;
end
/* QoS timer
* In the absence of a QoS trigger, QS==0.
* When Qos triggered, QS is set to 1 and counts 1, 2, 3, 0.
@ -78,22 +71,7 @@ module CNT(
/* QoS enable control */
always @(posedge CLK) if (!BACT) QoSEN <= QS!=0;
/* Sound QoS timer */
reg [1:0] SndQS;
always @(posedge CLK) begin
if (SndQoSCSr) SndQS <= 3;
else if (QoSCSr) SndQS <= 0;
else if (SndQS==0) SndQS <= 0;
else if (TimerTick) SndQS <= SndQS-1;
end
/* Sound QoS ready control */
always @(posedge CLK) begin
if (!BACT) SndQoSReady <= SndQS==0;
else if (QoSCSr) SndQoSReady <= 1;
else if (Wait==15) SndQoSReady <= 1;
end
assign SndQoSReady = 1;
/* Long timer counts from 0 to 4095.
* 4096 states == 57.516 ms */