| 1 | /* |
| 2 | * MAX78000 AES |
| 3 | * |
| 4 | * Copyright (c) 2025 Jackson Donaldson <jcksn@duck.com> |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 7 | */ |
| 8 | #ifndef HW_MAX78000_AES_H |
| 9 | #define HW_MAX78000_AES_H |
| 10 | |
| 11 | #include "hw/core/sysbus.h" |
| 12 | #include "crypto/aes.h" |
| 13 | #include "qom/object.h" |
| 14 | |
| 15 | #define TYPE_MAX78000_AES "max78000-aes" |
| 16 | OBJECT_DECLARE_SIMPLE_TYPE(Max78000AesState, MAX78000_AES) |
| 17 | |
| 18 | #define CTRL 0 |
| 19 | #define STATUS 4 |
| 20 | #define INTFL 8 |
| 21 | #define INTEN 0xc |
| 22 | #define FIFO 0x10 |
| 23 | |
| 24 | #define KEY_BASE 0x400 |
| 25 | #define KEY_END 0x420 |
| 26 | |
| 27 | /* CTRL */ |
| 28 | #define TYPE (1 << 9 | 1 << 8) |
| 29 | #define KEY_SIZE (1 << 7 | 1 << 6) |
| 30 | #define OUTPUT_FLUSH (1 << 5) |
| 31 | #define INPUT_FLUSH (1 << 4) |
| 32 | #define START (1 << 3) |
| 33 | |
| 34 | #define AES_EN (1 << 0) |
| 35 | |
| 36 | /* STATUS */ |
| 37 | #define OUTPUT_FULL (1 << 4) |
| 38 | #define OUTPUT_EMPTY (1 << 3) |
| 39 | #define INPUT_FULL (1 << 2) |
| 40 | #define INPUT_EMPTY (1 << 1) |
| 41 | #define BUSY (1 << 0) |
| 42 | |
| 43 | /* INTFL*/ |
| 44 | #define DONE (1 << 0) |
| 45 | |
| 46 | struct Max78000AesState { |
| 47 | SysBusDevice parent_obj; |
| 48 | |
| 49 | MemoryRegion mmio; |
| 50 | |
| 51 | uint32_t ctrl; |
| 52 | uint32_t status; |
| 53 | uint32_t intfl; |
| 54 | uint32_t inten; |
| 55 | uint32_t data_index; |
| 56 | uint8_t data[16]; |
| 57 | |
| 58 | uint8_t key[32]; |
| 59 | AES_KEY internal_key; |
| 60 | |
| 61 | uint32_t result_index; |
| 62 | uint8_t result[16]; |
| 63 | |
| 64 | |
| 65 | qemu_irq irq; |
| 66 | }; |
| 67 | |
| 68 | #endif |