Revert "Refactors needed for M4 power save on SiWx917 (#177)" (#181)

This reverts commit 0a40429.

matter/si91x/siwx917/BRD4338A/autogen/sl_event_handler.c

@@ -19,9 +19,9 @@ void sl_platform_init(void) {
   sli_si91x_platform_init();
   RSI_Board_Init();
   DEBUGINIT();
-#if SL_ICD_ENABLED
+#if SL_ICD_ENABLED && !(defined(DISPLAY_ENABLED))
   sl_si91x_hardware_setup();
-#endif // SL_ICD_ENABLED
+#endif // SL_ICD_ENABLED && !(defined(DISPLAY_ENABLED)
   osKernelInitialize();
 }
 

matter/si91x/siwx917/BRD4338A/support/inc/sl_si91x_m4_ps.h

@@ -0,0 +1,68 @@
+/*****************************************************************************
+ * @file sl_si91x_m4_ps.h
+ * @brief  M4 power save
+ *******************************************************************************
+ * # License
+ * <b>Copyright 2023 Silicon Laboratories Inc. www.silabs.com</b>
+ *******************************************************************************
+ *
+ * The licenser of this software is Silicon Laboratories Inc. Your use of this
+ * software is governed by the terms of Silicon Labs Master Software License
+ * Agreement (MSLA) available at
+ * www.silabs.com/about-us/legal/master-software-license-agreement. This
+ * software is distributed to you in Source Code format and is governed by the
+ * sections of the MSLA applicable to Source Code.
+ *
+ ******************************************************************************/
+
+#ifndef SL_SI91X_M4_POWERSAVE_H_
+#define SL_SI91X_M4_POWERSAVE_H_
+
+#ifdef DEBUG_UART
+#include "rsi_debug.h"
+#endif
+#ifdef SLI_SI91X_MCU_INTERFACE
+#include "rsi_ds_timer.h"
+#include "rsi_m4.h"
+#include "rsi_rom_power_save.h"
+#include "rsi_rom_timer.h"
+#include "rsi_rom_ulpss_clk.h"
+#include "rsi_rtc.h"
+#include "rsi_wisemcu_hardware_setup.h"
+#include "sl_event_handler.h"
+
+/*=======================================================================*/
+//! Power save command parameters
+/*=======================================================================*/
+//! set handshake type of power mode
+#define RSI_HAND_SHAKE_TYPE M4_BASED
+#define WIRELESS_WAKEUP_IRQ_PRI 8
+#define portNVIC_SHPR3_REG (*((volatile uint32_t *)0xe000ed20))
+#define portNVIC_PENDSV_PRI (((uint32_t)(0x3f << 4)) << 16UL)
+#define portNVIC_SYSTICK_PRI (((uint32_t)(0x3f << 4)) << 24UL)
+
+// -----------------------------------------------------------------------------
+// Prototypes
+/**
+ * @fn         sl_si91x_m4_sleep_wakeup
+ * @brief      Keeps the M4 In the Sleep
+ * @param[in]  none
+ * @return    none.
+ * @section description
+ * This function is used to trigger sleep in the M4 and in the case of the
+ * retention submitting the buffer valid to the TA for the rx packets.
+ */
+void sl_si91x_m4_sleep_wakeup(void);
+
+/**
+ * @fn           initialize_m4_alarm.
+ * @brief        This function is to initialize Alarm block .
+ * @param[in]  none
+ * @return    none.
+ */
+void initialize_m4_alarm(void);
+void IRQ026_Handler();
+void set_alarm_interrupt_timer(uint16_t interval);
+void wakeup_source_config(void);
+#endif /* SLI_SI91X_MCU_INTERFACE */
+#endif /* SL_SI91X_M4_POWERSAVE_H_ */