hw/misc: Implement ESP32-C3 SHA

Co-authored-by: Harshal Patil <harshal.patil@espressif.com>

hw/misc/esp32c3_sha.c

@@ -0,0 +1,33 @@
+/*
+ * ESP32C3 SHA accelerator
+ *
+ * Copyright (c) 2019 Espressif Systems (Shanghai) Co. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 or
+ * (at your option) any later version.
+ */
+#include "qemu/osdep.h"
+#include "hw/misc/esp32c3_sha.h"
+
+static void esp32c3_sha_class_init(ObjectClass *klass, void *data)
+{
+    ESPShaClass* class = ESP_SHA_CLASS(klass);
+    class->message_len = ESP32C3_SHA_MESSAGE_SIZE;
+    class->date = ESP32C3_SHA_DATE_REG_VALUE;
+}
+
+static const TypeInfo esp32c3_sha_info = {
+    .name = TYPE_ESP32C3_SHA,
+    .parent = TYPE_ESP_SHA,
+    .instance_size = sizeof(ESP32C3ShaState),
+    .class_init = esp32c3_sha_class_init,
+    .class_size = sizeof(ESP32C3ShaClass)
+};
+
+static void esp32c3_sha_register_types(void)
+{
+    type_register_static(&esp32c3_sha_info);
+}
+
+type_init(esp32c3_sha_register_types)

hw/misc/meson.build

@@ -150,6 +150,8 @@ system_ss.add(when: 'CONFIG_XTENSA_ESP32', if_true: files(
 
 system_ss.add(when: 'CONFIG_RISCV_ESP32C3', if_true: files(
   'esp32c3_cache.c',
+  'esp_sha.c',
+  'esp32c3_sha.c',
 ))
 if gcrypt.found()
   system_ss.add(when: [gcrypt, 'CONFIG_XTENSA_ESP32'], if_true: files(

include/hw/misc/esp32c3_sha.h

@@ -0,0 +1,35 @@
+/*
+ * ESP32C3 SHA accelerator
+ *
+ * Copyright (c) 2019 Espressif Systems (Shanghai) Co. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 or
+ * (at your option) any later version.
+ */
+
+#pragma once
+
+#include "hw/misc/esp_sha.h"
+
+#define TYPE_ESP32C3_SHA "misc.esp32c3.sha"
+#define ESP32C3_SHA(obj) OBJECT_CHECK(ESP32C3ShaState, (obj), TYPE_ESP32C3_SHA)
+
+#define ESP32C3_SHA_GET_CLASS(obj) OBJECT_GET_CLASS(ESP32C3ShaClass, obj, TYPE_ESP32C3_SHA)
+#define ESP32C3_SHA_CLASS(klass) OBJECT_CLASS_CHECK(ESP32C3ShaClass, klass, TYPE_ESP32C3_SHA)
+
+/**
+ * @brief Size of the message array, in bytes
+ */
+#define ESP32C3_SHA_MESSAGE_SIZE    64
+#define ESP32C3_SHA_MESSAGE_WORDS   (ESP32C3_SHA_MESSAGE_SIZE / sizeof(uint32_t))
+
+#define ESP32C3_SHA_DATE_REG_VALUE    0x20190402
+
+typedef struct ESP32C3ShaState {
+    ESPShaState parent;
+} ESP32C3ShaState;
+
+typedef struct ESP32C3ShaClass {
+    ESPShaClass parent_class;
+} ESP32C3ShaClass;