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[usbdev] usbdev_smoke_sequence
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Add usbdev smoke test of simple packet transmission in both direction
over the USB.

Signed-off-by: Mubashir Saleem <[email protected]>
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@MubashirSaleem775
MubashirSaleem775 committed Dec 23, 2023
1 parent abd4898 commit c2699d2
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Showing 2 changed files with 80 additions and 82 deletions.
80 changes: 0 additions & 80 deletions hw/dv/sv/usb20_agent/usb20_item.sv
View file
Original file line number Diff line number Diff line change
Expand Up @@ -71,88 +71,8 @@ class data_pkt extends usb20_item;
function void set_payload(byte bmRequestType, byte bRequest, byte wVH, byte wVL, byte wIH,
byte wIL, byte wLH, byte wLL);

<<<<<<< HEAD
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
crc16 = generate_crc16(data);
=======
// bRequestType 0_00_00000
if (bmRequestType == bmRequestType0) begin
if (bRequest == bRequestCLEAR_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_ADDRESS) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_CONFIGURATION) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_DESCRIPTOR) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end

// bRequestType 0_00_00001
else if (bmRequestType == bmRequestType1) begin
if (bRequest == bRequestCLEAR_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_INTERFACE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end

// bRequestType 0_00_00010
else if (bmRequestType == bmRequestType2) begin
if (bRequest == bRequestCLEAR_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSET_FEATURE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end

// bRequestType 1_00_00000
else if (bmRequestType == bmRequestType3) begin
if(bRequest == bRequestGET_CONFIGURATION) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestGET_DESCRIPTOR) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestGET_STATUS) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end

// bRequestType 1_00_00001
else if (bmRequestType == bmRequestType4) begin
if (bRequest == bRequestGET_INTERFACE) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestGET_STATUS) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end

// bRequestType 1_00_00010
else if (bmRequestType == bmRequestType5) begin
if (bRequest == bRequestGET_STATUS) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
else if (bRequest == bRequestSYNCH_FRAME) begin
data = '{bmRequestType, bRequest, wVH, wVL, wIH, wIL, wLH, wLL};
end
end else begin
data = data;
end
crc16 = generate_crc16(data);
>>>>>>> 331d1f7645 ([Usbdev] usbdev_env)
endfunction

function void post_randomize();
Expand Down
82 changes: 80 additions & 2 deletions hw/ip/usbdev/dv/env/seq_lib/usbdev_smoke_vseq.sv
View file
Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,86 @@ class usbdev_smoke_vseq extends usbdev_base_vseq;

`uvm_object_new

usb20_item m_usb20_item;
usb20_item rsp_itm;
token_pkt m_token_pkt;
data_pkt m_data_pkt;
handshake_pkt m_handshake_pkt;

task body();
`uvm_error(`gfn, "FIXME")
endtask : body
uvm_reg_data_t rx_fifo_read;
uvm_reg_data_t rx_fifo_expected;
uvm_reg_data_t rx_empty;
uvm_reg_data_t usbstat;
uvm_reg_data_t data;
uvm_status_e status;
bit [4:0] buffer_id = 5'd1;
super.apply_reset("HARD");
super.dut_init("HARD");
cfg.clk_rst_vif.wait_clks(200);
csr_wr(.ptr(ral.intr_state), .value(32'h0001_ffff)); // clear interrupts
csr_wr(.ptr(ral.ep_out_enable[0].enable[0]), .value(1'b1)); // Enable EP0 Out
csr_update(ral.ep_out_enable[0]);
ral.rxenable_setup[0].setup[0].set(1'b1); // Enable rx setup
csr_update(ral.rxenable_setup[0]);
ral.avbuffer.buffer.set(buffer_id); // set buffer id =1
csr_update(ral.avbuffer);
ral.intr_enable.pkt_received.set(1'b1); // Enable pkt_received interrupt
csr_update(ral.intr_enable);
// Setup token packet followed by a data packet of 8 bytes
call_token_sequence(PktTypeToken, PidTypeSetupToken);
cfg.clk_rst_vif.wait_clks(20);
call_data_sequence(PktTypeData, PidTypeData0);
cfg.clk_rst_vif.wait_clks(20);
// read rx_fifo register to check rcvd buffer id, endpoint number and type setup/out
csr_rd(.ptr(ral.rxfifo), .value(rx_fifo_read));
// expected value of rx_fifof reg is (32'h80801)[setup = 1, payload size = 8 bytes buffid = 1]
rx_fifo_expected = 32'h80801;
`DV_CHECK_EQ(rx_fifo_expected, rx_fifo_read);
ral.avbuffer.buffer.set(buffer_id + 1); // change available buffer id
csr_update(ral.avbuffer);
endtask

task call_token_sequence(input string pkt_type, input string pid_type);
RSP rsp_item;
`uvm_create_on(m_token_pkt, p_sequencer.usb20_sequencer_h)
m_token_pkt.m_pkt_type = pkt_type;
m_token_pkt.m_pid_type = pid_type;
assert(m_token_pkt.randomize() with {m_token_pkt.address inside {7'b0};
m_token_pkt.endpoint inside {4'd0};});
m_usb20_item = m_token_pkt;
start_item(m_token_pkt);
finish_item(m_token_pkt);
if (pid_type == "PidTypeInToken") begin
get_response(rsp_item);
$cast(rsp_itm, rsp_item);
get_response_from_device(rsp_itm, PidTypeData1);
end
endtask

task call_data_sequence(input string pkt_type, input string pid_type);
RSP rsp_item;
`uvm_create_on(m_data_pkt, p_sequencer.usb20_sequencer_h)
m_data_pkt.m_pkt_type = pkt_type;
m_data_pkt.m_pid_type = pid_type;
m_data_pkt.m_bmRT = 8'h80;
m_data_pkt.m_bR = 8'h06;
assert(m_data_pkt.randomize());
m_usb20_item = m_data_pkt;
m_data_pkt.set_payload (m_data_pkt.m_bmRT, m_data_pkt.m_bR,8'h00, 8'h01, 8'h00, 8'h00,
8'h40,8'h00);
start_item(m_data_pkt);
finish_item(m_data_pkt);
get_response(rsp_item);
$cast(rsp_itm, rsp_item);
get_response_from_device(rsp_itm, PidTypeAck);
endtask

task get_response_from_device(usb20_item rsp_itm, input string pid_type);
`uvm_create_on(m_handshake_pkt, p_sequencer.usb20_sequencer_h)
m_handshake_pkt.m_pid_type = pid_type;
m_usb20_item = m_handshake_pkt;
// DV_CHECK on device reponse packet id
`DV_CHECK_EQ(m_usb20_item.m_pid_type, rsp_itm.m_pid_type);
endtask
endclass : usbdev_smoke_vseq

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