freertos: release the generic version source code

freertos runs on the second core (small one) of the CPU

freertos/cvitek/kernel/include/cv1835/sched.h

@@ -0,0 +1,63 @@
+#ifndef __SCHED_HEADER__
+#define __SCHED_HEADER__
+#include "FreeRTOS_POSIX.h"
+#include "FreeRTOS_POSIX/pthread.h"
+#include "FreeRTOS_POSIX/sched.h"
+#include "task.h"
+
+typedef TaskHandle_t task_struct;
+#define current xTaskGetCurrentTaskHandle()
+
+#define TASK_RUNNING        0
+#define TASK_INTERRUPTIBLE  1
+#define TASK_UNINTERRUPTIBLE    2
+#define __TASK_STOPPED      4
+#define __TASK_TRACED       8
+
+/* in tsk->state again */
+#define TASK_DEAD       64
+#define TASK_WAKEKILL       128
+#define TASK_WAKING     256
+#define TASK_PARKED     512
+#define TASK_NOLOAD     1024
+#define TASK_NEW        2048
+#define TASK_STATE_MAX      4096
+
+#define TASK_STATE_TO_CHAR_STR "RSDTtXZxKWPNn"
+
+//extern char ___assert_task_state[1 - 2*!!(
+//        sizeof(TASK_STATE_TO_CHAR_STR)-1 != ilog2(TASK_STATE_MAX)+1)];
+
+/* Convenience macros for the sake of set_task_state */
+#define TASK_KILLABLE       (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
+#define TASK_STOPPED        (TASK_WAKEKILL | __TASK_STOPPED)
+#define TASK_TRACED     (TASK_WAKEKILL | __TASK_TRACED)
+
+#define TASK_IDLE       (TASK_UNINTERRUPTIBLE | TASK_NOLOAD)
+
+/* Convenience macros for the sake of wake_up */
+#define TASK_NORMAL     (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE)
+#define TASK_ALL        (TASK_NORMAL | __TASK_STOPPED | __TASK_TRACED)
+
+
+task_struct kthread_run(TaskFunction_t threadfn, void *data, char *fn_name, ...);
+#if 0
+{
+	TaskHandle_t t;
+	UBaseType_t task_prio = uxTaskPriorityGet(current);
+	xTaskCreate(threadfn, fn_name, configMINIMAL_STACK_SIZE,
+		data, task_prio, &t);
+	return t;
+}
+#endif
+int kthread_stop(task_struct kthread);
+#if 0
+{
+	if (kthread) {
+		vTaskDelete(kthread);
+		return 0;
+	} else
+		return -1;
+}
+#endif
+#endif