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gt_es: support lpm mode - 1/2

main
Rejeesh Kutty 2015-02-12 15:15:18 -05:00
parent c908cea801
commit 0a8e6f62ef
1 changed files with 82 additions and 54 deletions
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136
library/common/ad_gt_es.v
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@ -131,56 +131,58 @@ module ad_gt_es (
// state machine
parameter ES_FSM_IDLE = 6'h00;
parameter ES_FSM_STATUS = 6'h30;
parameter ES_FSM_INIT = 6'h31;
parameter ES_FSM_CTRLINIT_READ = 6'h01;
parameter ES_FSM_CTRLINIT_RRDY = 6'h02;
parameter ES_FSM_CTRLINIT_WRITE = 6'h03;
parameter ES_FSM_CTRLINIT_WRDY = 6'h04;
parameter ES_FSM_SDATA0_WRITE = 6'h05;
parameter ES_FSM_SDATA0_WRDY = 6'h06;
parameter ES_FSM_SDATA1_WRITE = 6'h07;
parameter ES_FSM_SDATA1_WRDY = 6'h08;
parameter ES_FSM_SDATA2_WRITE = 6'h09;
parameter ES_FSM_SDATA2_WRDY = 6'h0a;
parameter ES_FSM_SDATA3_WRITE = 6'h0b;
parameter ES_FSM_SDATA3_WRDY = 6'h0c;
parameter ES_FSM_SDATA4_WRITE = 6'h0d;
parameter ES_FSM_SDATA4_WRDY = 6'h0e;
parameter ES_FSM_QDATA0_WRITE = 6'h0f;
parameter ES_FSM_QDATA0_WRDY = 6'h10;
parameter ES_FSM_QDATA1_WRITE = 6'h11;
parameter ES_FSM_QDATA1_WRDY = 6'h12;
parameter ES_FSM_QDATA2_WRITE = 6'h13;
parameter ES_FSM_QDATA2_WRDY = 6'h14;
parameter ES_FSM_QDATA3_WRITE = 6'h15;
parameter ES_FSM_QDATA3_WRDY = 6'h16;
parameter ES_FSM_QDATA4_WRITE = 6'h17;
parameter ES_FSM_QDATA4_WRDY = 6'h18;
parameter ES_FSM_HOFFSET_READ = 6'h19;
parameter ES_FSM_HOFFSET_RRDY = 6'h1a;
parameter ES_FSM_HOFFSET_WRITE = 6'h1b;
parameter ES_FSM_HOFFSET_WRDY = 6'h1c;
parameter ES_FSM_VOFFSET_READ = 6'h1d;
parameter ES_FSM_VOFFSET_RRDY = 6'h1e;
parameter ES_FSM_VOFFSET_WRITE = 6'h1f;
parameter ES_FSM_VOFFSET_WRDY = 6'h20;
parameter ES_FSM_CTRLSTART_READ = 6'h21;
parameter ES_FSM_CTRLSTART_RRDY = 6'h22;
parameter ES_FSM_CTRLSTART_WRITE = 6'h23;
parameter ES_FSM_CTRLSTART_WRDY = 6'h24;
parameter ES_FSM_STATUS_READ = 6'h25;
parameter ES_FSM_STATUS_RRDY = 6'h26;
parameter ES_FSM_CTRLSTOP_READ = 6'h27;
parameter ES_FSM_CTRLSTOP_RRDY = 6'h28;
parameter ES_FSM_CTRLSTOP_WRITE = 6'h29;
parameter ES_FSM_CTRLSTOP_WRDY = 6'h2a;
parameter ES_FSM_SCNT_READ = 6'h2b;
parameter ES_FSM_SCNT_RRDY = 6'h2c;
parameter ES_FSM_ECNT_READ = 6'h2d;
parameter ES_FSM_ECNT_RRDY = 6'h2e;
parameter ES_FSM_DATA = 6'h2f;
localparam ES_FSM_IDLE = 6'h00;
localparam ES_FSM_STATUS = 6'h01;
localparam ES_FSM_INIT = 6'h02;
localparam ES_FSM_CTRLINIT_READ = 6'h03;
localparam ES_FSM_CTRLINIT_RRDY = 6'h04;
localparam ES_FSM_CTRLINIT_WRITE = 6'h05;
localparam ES_FSM_CTRLINIT_WRDY = 6'h06;
localparam ES_FSM_SDATA0_WRITE = 6'h07;
localparam ES_FSM_SDATA0_WRDY = 6'h08;
localparam ES_FSM_SDATA1_WRITE = 6'h09;
localparam ES_FSM_SDATA1_WRDY = 6'h0a;
localparam ES_FSM_SDATA2_WRITE = 6'h0b;
localparam ES_FSM_SDATA2_WRDY = 6'h0c;
localparam ES_FSM_SDATA3_WRITE = 6'h0d;
localparam ES_FSM_SDATA3_WRDY = 6'h0e;
localparam ES_FSM_SDATA4_WRITE = 6'h0f;
localparam ES_FSM_SDATA4_WRDY = 6'h10;
localparam ES_FSM_QDATA0_WRITE = 6'h11;
localparam ES_FSM_QDATA0_WRDY = 6'h12;
localparam ES_FSM_QDATA1_WRITE = 6'h13;
localparam ES_FSM_QDATA1_WRDY = 6'h14;
localparam ES_FSM_QDATA2_WRITE = 6'h15;
localparam ES_FSM_QDATA2_WRDY = 6'h16;
localparam ES_FSM_QDATA3_WRITE = 6'h17;
localparam ES_FSM_QDATA3_WRDY = 6'h18;
localparam ES_FSM_QDATA4_WRITE = 6'h19;
localparam ES_FSM_QDATA4_WRDY = 6'h1a;
localparam ES_FSM_HOFFSET_READ = 6'h1b;
localparam ES_FSM_HOFFSET_RRDY = 6'h1c;
localparam ES_FSM_HOFFSET_WRITE = 6'h1d;
localparam ES_FSM_HOFFSET_WRDY = 6'h1e;
localparam ES_FSM_VOFFSET_READ = 6'h1f;
localparam ES_FSM_VOFFSET_RRDY = 6'h20;
localparam ES_FSM_VOFFSET_WRITE = 6'h21;
localparam ES_FSM_VOFFSET_WRDY = 6'h22;
localparam ES_FSM_CTRLSTART_READ = 6'h23;
localparam ES_FSM_CTRLSTART_RRDY = 6'h24;
localparam ES_FSM_CTRLSTART_WRITE = 6'h25;
localparam ES_FSM_CTRLSTART_WRDY = 6'h26;
localparam ES_FSM_STATUS_READ = 6'h27;
localparam ES_FSM_STATUS_RRDY = 6'h28;
localparam ES_FSM_CTRLSTOP_READ = 6'h29;
localparam ES_FSM_CTRLSTOP_RRDY = 6'h2a;
localparam ES_FSM_CTRLSTOP_WRITE = 6'h2b;
localparam ES_FSM_CTRLSTOP_WRDY = 6'h2c;
localparam ES_FSM_SCNT_READ = 6'h2d;
localparam ES_FSM_SCNT_RRDY = 6'h2e;
localparam ES_FSM_ECNT_READ = 6'h2f;
localparam ES_FSM_ECNT_RRDY = 6'h30;
localparam ES_FSM_DMA_WRITE = 6'h31;
localparam ES_FSM_DMA_READY = 6'h32;
localparam ES_FSM_UPDATE = 6'h33;
// drp interface
@ -258,7 +260,11 @@ module ad_gt_es (
reg [31:0] axi_awaddr = 'd0;
reg axi_wvalid = 'd0;
reg [31:0] axi_wdata = 'd0;
reg axi_ack_toggle = 'd0;
reg axi_err = 'd0;
reg es_dma_ack_toggle_m1 = 'd0;
reg es_dma_ack_toggle_m2 = 'd0;
reg es_dma_ack_toggle_m3 = 'd0;
reg es_dmaerr_m1 = 'd0;
reg es_dmaerr = 'd0;
reg es_dma_req_toggle = 'd0;
@ -283,6 +289,7 @@ module ad_gt_es (
// internal signals
wire axi_req_s;
wire es_dma_ack_s;
wire es_heos_s;
wire es_eos_s;
wire [ 7:0] es_voffset_2_s;
@ -348,6 +355,7 @@ module ad_gt_es (
axi_awaddr <= 'd0;
axi_wvalid <= 'b0;
axi_wdata <= 'd0;
axi_ack_toggle <= 'd0;
axi_err <= 'd0;
end else begin
axi_req_toggle_m1 <= es_dma_req_toggle;
@ -368,22 +376,31 @@ module ad_gt_es (
axi_wdata <= es_dma_data;
end
if (axi_bvalid == 1'b1) begin
axi_ack_toggle <= ~axi_ack_toggle;
axi_err <= axi_bresp[1] | axi_bresp[0];
end
end
end
assign es_dma_ack_s = es_dma_ack_toggle_m3 ^ es_dma_ack_toggle_m2;
always @(posedge drp_clk) begin
if (drp_rst == 1'b1) begin
es_dma_ack_toggle_m1 <= 'd0;
es_dma_ack_toggle_m2 <= 'd0;
es_dma_ack_toggle_m3 <= 'd0;
es_dmaerr_m1 <= 'd0;
es_dmaerr <= 'd0;
es_dma_req_toggle <= 'd0;
es_dma_addr <= 'd0;
es_dma_data <= 'd0;
end else begin
es_dma_ack_toggle_m1 <= axi_ack_toggle;
es_dma_ack_toggle_m2 <= es_dma_ack_toggle_m1;
es_dma_ack_toggle_m3 <= es_dma_ack_toggle_m2;
es_dmaerr_m1 <= axi_err;
es_dmaerr <= es_dmaerr_m1;
if (es_fsm == ES_FSM_DATA) begin
if (es_fsm == ES_FSM_DMA_WRITE) begin
es_dma_req_toggle <= ~es_dma_req_toggle;
es_dma_addr <= es_dma_addr_int;
es_dma_data <= {es_scnt_rdata, es_ecnt_rdata};
@ -411,7 +428,7 @@ module ad_gt_es (
es_dma_addr_int <= es_start_addr;
es_hoffset <= es_hoffset_min;
es_voffset <= es_voffset_min;
end else if (es_fsm == ES_FSM_DATA) begin
end else if (es_fsm == ES_FSM_UPDATE) begin
es_ut <= ~es_ut;
es_dma_addr_int <= es_dma_addr_int + 3'd4;
if (es_heos_s == 1'b1) begin
@ -710,13 +727,24 @@ module ad_gt_es (
end
ES_FSM_ECNT_RRDY: begin // error count ready
if (es_ready == 1'b1) begin
es_fsm <= ES_FSM_DATA;
es_fsm <= ES_FSM_DMA_WRITE;
end else begin
es_fsm <= ES_FSM_ECNT_RRDY;
end
end
ES_FSM_DATA: begin // data phase
ES_FSM_DMA_WRITE: begin // dma write
es_fsm <= ES_FSM_DMA_READY;
end
ES_FSM_DMA_READY: begin // dma ack
if (es_dma_ack_s == 1'b1) begin
es_fsm <= ES_FSM_UPDATE;
end else begin
es_fsm <= ES_FSM_DMA_READY;
end
end
ES_FSM_UPDATE: begin // update
if (es_eos_s == 1'b1) begin
es_fsm <= ES_FSM_IDLE;
end else if (es_ut == 1'b1) begin