Diff: mbed-dev/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c

Revision:

18:6a4db94011d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c	Sun May 14 23:18:57 2017 +0000
@@ -0,0 +1,118 @@
+/**
+ *******************************************************************************
+ * @file    sleep.c
+ * @brief Implementation of an sleep functionality
+ * @internal
+ * @author  ON Semiconductor
+ * $Rev:  0.1 $
+ * $Date: 01-21-2016 $
+ ******************************************************************************
+ * Copyright 2016 Semiconductor Components Industries LLC (d/b/a “ON Semiconductor”).
+ * All rights reserved.  This software and/or documentation is licensed by ON Semiconductor
+ * under limited terms and conditions.  The terms and conditions pertaining to the software
+ * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
+ * (“ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software”) and
+ * if applicable the software license agreement.  Do not use this software and/or
+ * documentation unless you have carefully read and you agree to the limited terms and
+ * conditions.  By using this software and/or documentation, you agree to the limited
+ * terms and conditions.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+ * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * @endinternal
+ *
+ * @ingroup sleep
+ *
+ * @details
+ * Sleep implementation
+ *
+ */
+#if DEVICE_SLEEP
+#include "mbed_sleep.h"
+#include "sleep_api.h"
+#include "cmsis_nvic.h"
+
+#define ENABLE          (uint8_t)0x01
+#define DISABLE         (uint8_t)0x00
+#define MAC_LUT_SIZE    (uint8_t)96
+
+#define portNVIC_SYSTICK_CTRL_REG           ( * ( ( volatile unsigned long * ) 0xe000e010 ) )
+#define portNVIC_SYSTICK_CLK_BIT            ( 1UL << 2UL )
+#define portNVIC_SYSTICK_INT_BIT            ( 1UL << 1UL )
+#define portNVIC_SYSTICK_ENABLE_BIT         ( 1UL << 0UL )
+
+void fncs36510_sleep(void)
+{
+    /** Unset SLEEPDEEP (SCR) and COMA to select sleep mode */
+    SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
+    PMUREG->CONTROL.BITS.ENCOMA = DISABLE;
+
+    /* Enter into sleep mode */
+    __ISB();
+    __WFI();
+}
+
+void fncs36510_deepsleep(void)
+{
+    /** Set SLEEPDEEP (SCR) and unset COMA to select deep sleep mode */
+    SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+    PMUREG->CONTROL.BITS.ENCOMA = DISABLE;
+
+    /** Enter into deep sleep mode */
+    __ISB();
+    __WFI();
+
+    /** Wait for the external 32MHz to be power-ed up & running
+     * Re-power down the 32MHz internal osc
+     */
+    while (!CLOCKREG->CSR.BITS.XTAL32M);
+    PMUREG->CONTROL.BITS.INT32M = 1;
+}
+
+void fncs36510_coma(void)
+{
+    /** Set SLEEPDEEP (SCR) and set COMA to select coma mode */
+    SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+    PMUREG->CONTROL.BITS.ENCOMA = ENABLE;
+
+    /* TODO Wait till MAC is idle */
+    //        while((MACHWREG->SEQUENCER == MACHW_SEQ_TX) || (MACHWREG->SEQUENCER == MACHW_SEQ_ED) || (MACHWREG->SEQUENCER == MACHW_SEQ_CCA));
+
+    /* TODO Back up MAC_LUT *
+    uint8_t MAC_LUT_BackUp[MAC_LUT_SIZE];
+    fMacBackupFrameStoreLUT(MAC_LUT_BackUp); */
+
+    /* Disable UART 1 & 2 FIFO during coma*/
+    UART1REG->FCR.WORD &= ~(FCR_FIFO_ENABLE);
+    UART2REG->FCR.WORD &= ~(FCR_FIFO_ENABLE);
+
+    /** Enter into coma mode */
+    __ISB();
+    __WFI();
+
+    /** Wait for the external 32MHz to be power-ed up & running
+     * Re-power down the 32MHz internal osc
+     */
+    while (!CLOCKREG->CSR.BITS.XTAL32M);
+    PMUREG->CONTROL.BITS.INT32M = 1;
+
+    /** Trim the oscillators */
+    if ((TRIMREG->TRIM_32K_EXT & 0xFFFF0000) != 0xFFFF0000) {
+        CLOCKREG->TRIM_32K_EXT.WORD = TRIMREG->TRIM_32K_EXT;
+    }
+    if ((TRIMREG->TRIM_32M_EXT & 0xFFFF0000) != 0xFFFF0000) {
+        CLOCKREG->TRIM_32M_EXT.WORD = TRIMREG->TRIM_32M_EXT;
+    }
+
+    /* Enable UART 1 & 2 FIFO */
+    UART1REG->FCR.WORD |= FCR_FIFO_ENABLE;
+    UART2REG->FCR.WORD |= FCR_FIFO_ENABLE;
+
+    /* TODO Restore MAC_LUT *
+    fMacRestoreFrameStoreLUT(MAC_LUT_BackUp);  */
+}
+
+#endif /* DEVICE_SLEEP */
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