add ls2k bsp

1 files changed, 89 insertions, 0 deletions

diff --git a/bsp/ls2kdev/drivers/interrupt.c b/bsp/ls2kdev/drivers/interrupt.c
new file mode 100644
index 0000000000..6473e5aa94
--- /dev/null
+++ b/bsp/ls2kdev/drivers/interrupt.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     Initial version
+ */
+
+/**
+ * @addtogroup ls2k
+ */
+
+/*@{*/
+
+#include <rtthread.h>
+#include <rthw.h>
+#include <exception.h>
+
+#define MAX_INTR 32
+
+static struct rt_irq_desc irq_handle_table[MAX_INTR];
+
+static void rt_hw_interrupt_handler(int vector, void *param)
+{
+    rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
+}
+
+/**
+ * This function will initialize hardware interrupt
+ */
+void rt_hw_interrupt_init(void)
+{
+    rt_uint32_t idx;
+    rt_memset(irq_handle_table, 0x00, sizeof(irq_handle_table));
+    for (idx = 0; idx < MAX_INTR; idx ++)
+    {
+        irq_handle_table[idx].handler = rt_hw_interrupt_handler;
+    }
+}
+
+rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
+                                         void *param, const char *name)
+{
+    rt_isr_handler_t old_handler = RT_NULL;
+
+    if (vector >= 0 && vector < MAX_INTR)
+    {
+        old_handler = irq_handle_table[vector].handler;
+
+#ifdef RT_USING_INTERRUPT_INFO
+        rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
+#endif /* RT_USING_INTERRUPT_INFO */
+        irq_handle_table[vector].handler = handler;
+        irq_handle_table[vector].param = param;
+    }
+
+    return old_handler;
+}
+
+void rt_hw_timer_handler(void);
+
+void rt_do_mips_cpu_irq(rt_uint32_t ip)
+{
+    void *param;
+    rt_isr_handler_t irq_func;
+
+    if (ip == 7) {
+        rt_hw_timer_handler();
+    } else {
+        irq_func = irq_handle_table[ip].handler;
+                param = irq_handle_table[ip].param;
+
+                /* do interrupt */
+                irq_func(ip, param);
+    }
+}
+
+void rt_hw_interrupt_umask(int irq)
+{
+    mips_unmask_cpu_irq(irq);
+}
+
+void rt_hw_interrupt_mask(int irq)
+{
+    mips_mask_cpu_irq(irq);
+}
+/*@}*/