| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| // |
| |
| |
| package edn_pkg; |
| /////////////////////////// |
| // Peripheral Interfaces // |
| /////////////////////////// |
| |
| parameter int unsigned ENDPOINT_BUS_WIDTH = 32; |
| parameter int unsigned FIPS_ENDPOINT_BUS_WIDTH = entropy_src_pkg::FIPS_BUS_WIDTH + |
| ENDPOINT_BUS_WIDTH; |
| |
| // EDN request interface |
| typedef struct packed { |
| logic edn_req; |
| } edn_req_t; |
| typedef struct packed { |
| logic edn_ack; |
| logic edn_fips; |
| logic [ENDPOINT_BUS_WIDTH-1:0] edn_bus; |
| } edn_rsp_t; |
| |
| parameter edn_req_t EDN_REQ_DEFAULT = '0; |
| parameter edn_rsp_t EDN_RSP_DEFAULT = '0; |
| |
| typedef enum logic [8:0] { |
| Idle = 9'b110000101, // idle |
| BootLoadIns = 9'b110110111, // boot: load the instantiate command |
| BootLoadGen = 9'b000000011, // boot: load the generate command |
| BootInsAckWait = 9'b011010010, // boot: wait for instantiate command ack |
| BootCaptGenCnt = 9'b010111010, // boot: capture the gen fifo count |
| BootSendGenCmd = 9'b011100100, // boot: send the generate command |
| BootGenAckWait = 9'b101101100, // boot: wait for generate command ack |
| BootPulse = 9'b100001010, // boot: signal a done pulse |
| BootDone = 9'b011011111, // boot: stay in done state until reset |
| AutoLoadIns = 9'b001110000, // auto: load the instantiate command |
| AutoFirstAckWait = 9'b001001101, // auto: wait for first instantiate command ack |
| AutoAckWait = 9'b101100011, // auto: wait for instantiate command ack |
| AutoDispatch = 9'b110101110, // auto: determine next command to be sent |
| AutoCaptGenCnt = 9'b000110101, // auto: capture the gen fifo count |
| AutoSendGenCmd = 9'b111111000, // auto: send the generate command |
| AutoCaptReseedCnt = 9'b000100110, // auto: capture the reseed fifo count |
| AutoSendReseedCmd = 9'b101010110, // auto: send the reseed command |
| SWPortMode = 9'b100111001, // swport: no hw request mode |
| Error = 9'b010010001 // illegal state reached and hang |
| } state_e; |
| |
| endpackage : edn_pkg |
