Support XiZi_AIoT

2024-01-31 10:30:34 +08:00
parent f6cf46027d
commit 494312183b
351 changed files with 46408 additions and 450091 deletions
--- a/Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_register_irq.c
+++ b/Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_register_irq.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+/**
+ * @file sys_register_irq.c
+ * @brief task registration for interrupt
+ * @version 3.0
+ * @author AIIT XUOS Lab
+ * @date 2023.08.25
+ */
+
+/*************************************************
+File name: sys_register_irq.c
+Description: task registration for interrupt
+Others:
+History:
+1. Date: 2023-08-28
+Author: AIIT XUOS Lab
+Modification:
+1. first version
+*************************************************/
+#include <string.h>
+
+#include "trap_common.h"
+
+#include "actracer.h"
+#include "assert.h"
+#include "ipc.h"
+#include "multicores.h"
+#include "share_page.h"
+#include "syscall.h"
+#include "task.h"
+
+static struct TaskMicroDescriptor kernel_irq_proxy;
+static struct {
+    struct TaskMicroDescriptor* handle_task;
+    struct Session* session;
+    int opcode;
+} irq_forward_table[NR_IRQS];
+
+static void send_irq_to_user(int irq_num)
+{
+    int len = IPC_ARG_INFO_BASE_OFFSET;
+    /* add session tail */
+    struct IpcMsg* buf = irq_forward_table[irq_num].session->buf + irq_forward_table[irq_num].session->tail;
+    irq_forward_table[irq_num].session->tail += len;
+    memset((void*)buf, 0, len);
+    /* construct message */
+    buf->header.len = len;
+    buf->header.nr_args = 0;
+    buf->header.init = 1;
+    buf->header.opcode = irq_forward_table[irq_num].opcode;
+    buf->header.done = 0;
+    buf->header.magic = IPC_MSG_MAGIC;
+    buf->header.valid = 1;
+    /* add session head */
+    irq_forward_table[irq_num].session->head += len;
+}
+
+int user_irq_handler(int irq, void* tf, void* arg)
+{
+    send_irq_to_user(irq);
+    next_task_emergency = irq_forward_table[irq].handle_task;
+    xizi_task_manager.cur_task_yield_noschedule();
+    return 0;
+}
+
+extern int create_session_inner(struct TaskMicroDescriptor* client, struct TaskMicroDescriptor* server, int capacity, struct Session* user_session);
+int sys_register_irq(int irq_num, int irq_opcode)
+{
+    static struct TraceTag intr_ac_tag;
+    if (!AchieveResourceTag(&intr_ac_tag, RequireRootTag(), "hardkernel/intr-ac-resource")) {
+        ERROR("intr not initialized.\n");
+        return -1;
+    }
+    struct XiziTrapDriver* p_intr_driver = AchieveResource(&intr_ac_tag);
+
+    if (p_intr_driver->sw_irqtbl[irq_num].handler != NULL) {
+        ERROR("irq %d is occupied.\n", irq_num);
+        return -1;
+    }
+    struct TaskMicroDescriptor* cur_task = cur_cpu()->task;
+    irq_forward_table[irq_num].handle_task = cur_task;
+    irq_forward_table[irq_num].opcode = irq_opcode;
+    create_session_inner(&kernel_irq_proxy, cur_task, PAGE_SIZE, irq_forward_table[irq_num].session);
+    p_intr_driver->bind_irq_handler(irq_num, user_irq_handler);
+
+    return 0;
+}