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Diffstat (limited to 'fpga/usrp3/top/x300/bus_int.v')
-rw-r--r--fpga/usrp3/top/x300/bus_int.v13
1 files changed, 12 insertions, 1 deletions
diff --git a/fpga/usrp3/top/x300/bus_int.v b/fpga/usrp3/top/x300/bus_int.v
index faf4f8d82..92bea5d84 100644
--- a/fpga/usrp3/top/x300/bus_int.v
+++ b/fpga/usrp3/top/x300/bus_int.v
@@ -45,6 +45,8 @@ module bus_int #(
input SFPP0_ModAbs, input SFPP0_TxFault, input SFPP0_RxLOS, inout SFPP0_RS0, inout SFPP0_RS1,
// SFP+ 1
input SFPP1_ModAbs, input SFPP1_TxFault, input SFPP1_RxLOS, inout SFPP1_RS0, inout SFPP1_RS1,
+ // Front-panel GPIO source
+ output [23:0] fp_gpio_src,
// Clock control and status
input [7:0] clock_status, output [7:0] clock_control, output [31:0] ref_freq, output ref_freq_changed,
// SFP+ 0 data stream
@@ -153,7 +155,7 @@ module bus_int #(
localparam SR_SPI = 8'd32;
localparam SR_ETHINT0 = 8'd40;
localparam SR_ETHINT1 = 8'd56;
- //localparam SR_NEXT_ADDR = 8'd72;
+ localparam SR_FP_GPIO_SRC = 8'd72;
localparam SR_BASE_TIME = 8'd100;
localparam RB_COUNTER = 8'd00;
@@ -169,6 +171,7 @@ module bus_int #(
localparam RB_GIT_HASH = 8'd10;
localparam RB_XADC_VALS = 8'd11;
localparam RB_NUM_TIMEKEEPERS = 8'd12;
+ localparam RB_FP_GPIO_SRC = 8'd13;
localparam COMPAT_MAJOR = 16'h0026;
localparam COMPAT_MINOR = 16'h0000;
@@ -433,6 +436,7 @@ module bus_int #(
`endif
RB_GIT_HASH: rb_data = `GIT_HASH;
RB_XADC_VALS: rb_data = xadc_readback;
+ RB_FP_GPIO_SRC: rb_data = fp_gpio_src;
SR_BASE_TIME: begin
rb_data = radio_time[31:0];
radio_time_hi_ld = 1'b1;
@@ -604,6 +608,13 @@ module bus_int #(
assign SFPP1_RS0 = sfpp1_ctrl[0] ? 1'b0 : 1'bz;
assign SFPP1_RS1 = sfpp1_ctrl[1] ? 1'b0 : 1'bz;
+
+ // Front-panel GPIO source - Each pin is allocated 2 bits
+ setting_reg #(.my_addr(SR_FP_GPIO_SRC), .awidth(SR_AWIDTH), .width(24)) set_fp_gpio_src
+ (.clk(clk), .rst(reset),
+ .strobe(set_stb), .addr(set_addr), .in(set_data),
+ .out(fp_gpio_src));
+
// ////////////////////////////////////////////////////////////////
// ETH interfaces