Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

csky/csi_kernel/rhino/pwrmgmt/cpu_pwr_api.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2018 Alibaba Group Holding Limited
+ */
+
+/*
+modification history
+--------------------
+14jan2018, init vesion
+*/
+
+/*
+DESCRIPTION
+This file provides APIs for management CPU power.
+*/
+
+#ifndef __cpu_pwr_api_h__
+#define __cpu_pwr_api_h__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "k_api.h"
+#include "cpu_pwr_hal_lib.h"
+
+/*
+ * CPU power management operates in one of three possible modes:
+ *
+ * CPU_IDLE_MODE_RUN:
+ * In this CPU mode of operation, idle CPU power management is disabled.
+ *
+ * CPU_IDLE_MODE_SLEEP:
+ * the CPUs sleep when idle, but system clock interupts wakes up the CPU
+ * at every tick.
+ *
+ * CPU_IDLE_MODE_TICKLESS: CPUs sleep when idle, potentially for multiple
+ * ticks at a time.
+ */
+
+typedef enum cpu_idle_mode
+    {
+    CPU_IDLE_MODE_RUN       = 0,
+    CPU_IDLE_MODE_SLEEP     = 1,
+    CPU_IDLE_MODE_TICKLESS  = 2    
+    } CPU_IDLE_MODE;
+
+#if RHINO_CONFIG_CPU_PWR_P_STATE_SUPPORT
+extern kstat_t cpu_pwr_p_state_set (uint32_t cpuIndex, cpu_pstate_t  cpuPState);
+extern kstat_t cpu_pwr_p_state_get (uint32_t cpuIndex, cpu_pstate_t * pCpuPState);
+extern kstat_t cpu_pwr_p_state_capability_get (uint32_t cpuIndex, uint32_t * pSupportBitsetP);
+#endif /* RHINO_CONFIG_CPU_PWR_P_STATE_SUPPORT */
+
+extern kstat_t cpu_pwr_c_state_set (cpu_cstate_t);
+extern kstat_t cpu_pwr_c_state_get (uint32_t cpuIndex, cpu_cstate_t * pCpuCState);
+extern kstat_t cpu_pwr_c_state_capability_get (uint32_t cpuIndex, uint32_t * pSupportBitsetC);
+
+extern kstat_t cpu_pwr_idle_mode_set (CPU_IDLE_MODE mode);
+extern kstat_t cpu_pwr_idle_mode_get (CPU_IDLE_MODE * pMode);
+
+#if RHINO_CONFIG_CPU_TICKLESS
+extern kstat_t tickless_task_ignore (ktask_t * p_tcb);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __cpu_pwr_api_h__ */
+