Diff: targets/TARGET_Maxim/TARGET_MAX32625/mxc/clkman.h

Revision:

150:02e0a0aed4ec

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_Maxim/TARGET_MAX32625/mxc/clkman.h	Tue Nov 08 17:45:16 2016 +0000
@@ -0,0 +1,234 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *
+ * $Date: 2016-04-27 09:12:45 -0500 (Wed, 27 Apr 2016) $
+ * $Revision: 22531 $
+ *
+ ******************************************************************************/
+
+/**
+ * @file    clkman.h
+ * @brief   Clock management driver header file.
+ */
+
+#ifndef _CLKMAN_H_
+#define _CLKMAN_H_
+
+/***** Includes *****/
+#include "mxc_config.h"
+#include "clkman_regs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***** Definitions *****/
+
+/**
+ * @brief Defines clock source selections for the system clock.
+ */
+typedef enum {
+    /** Clock select for 96MHz oscillator */
+    CLKMAN_SYSTEM_SOURCE_96MHZ,
+    /** Clock select for 4MHz oscillator */
+    CLKMAN_SYSTEM_SOURCE_4MHZ
+}
+clkman_system_source_select_t;
+
+/**
+ * @brief Defines clock scales for the system clock.
+ * @note 4MHz System source can only be divided down by a maximum factor of 8.
+ */
+typedef enum {
+    CLKMAN_SYSTEM_SCALE_DIV_1,     /** Clock scale for dividing system by 1  */
+    CLKMAN_SYSTEM_SCALE_DIV_2,     /** Clock scale for dividing system by 2  */
+    CLKMAN_SYSTEM_SCALE_DIV_4,     /** Clock scale for dividing system by 4  */
+    CLKMAN_SYSTEM_SCALE_DIV_8,     /** Clock scale for dividing system by 8  */
+    CLKMAN_SYSTEM_SCALE_DIV_16     /** Clock scale for dividing system by 16  */
+} clkman_system_scale_t;
+
+/**
+ * @brief Selects an internal module clock for clock scaling configuration.
+ */
+typedef enum {
+    CLKMAN_CLK_CPU           = 0,     /** CPU clock */
+    CLKMAN_CLK_SYNC          = 1,     /** Synchronizer clock */
+    CLKMAN_CLK_SPIX          = 2,     /** SPI XIP module clock */
+    CLKMAN_CLK_PRNG          = 3,     /** PRNG module clock */
+    CLKMAN_CLK_WDT0          = 4,     /** Watchdog Timer 0 clock */
+    CLKMAN_CLK_WDT1          = 5,     /** Watchdog Timer 1 clock */
+    CLKMAN_CLK_GPIO          = 6,     /** GPIO module clock */
+    CLKMAN_CLK_PT            = 7,     /** Pulse Train engine clock */
+    CLKMAN_CLK_UART          = 8,     /** UART clock */
+    CLKMAN_CLK_I2CM          = 9,     /** I2C Master module clock (for all instances) */
+    CLKMAN_CLK_I2CS          = 10,    /** I2C Slave module clock */
+    CLKMAN_CLK_SPIM0         = 11,    /** SPI Master instance 0 module clock */
+    CLKMAN_CLK_SPIM1         = 12,    /** SPI Master instance 1 module clock */
+    CLKMAN_CLK_SPIM2         = 13,    /** SPI Master instance 2 module clock */
+    CLKMAN_CLK_OWM           = 15,    /** OWM module clock*/
+    CLKMAN_CLK_SPIS          = 16,    /** SPI Slave module clock*/
+    CLKMAN_CRYPTO_CLK_AES    = 17,    /** AES engine clock */
+    CLKMAN_CRYPTO_CLK_MAA    = 18,    /** Modular Arithmetic Accelerator (MAA) clock */
+    CLKMAN_CRYPTO_CLK_PRNG   = 19,    /** Pseudo-random number Generator (PRNG) clock */
+    CLKMAN_CLK_MAX           = 19
+} clkman_clk_t;
+
+/**
+ * @brief Selects a clock to enable/disable
+ */
+typedef enum {
+    CLKMAN_USB_CLOCK    = MXC_F_CLKMAN_CLK_CTRL_USB_CLOCK_ENABLE,
+    CLKMAN_CRYPTO_CLOCK = MXC_F_CLKMAN_CLK_CTRL_CRYPTO_CLOCK_ENABLE,
+    CLKMAN_ADC_CLOCK    = MXC_F_CLKMAN_CLK_CTRL_ADC_CLOCK_ENABLE,
+    CLKMAN_WDT0_CLOCK   = MXC_F_CLKMAN_CLK_CTRL_WDT0_CLOCK_ENABLE,
+    CLKMAN_WDT1_CLOCK   = MXC_F_CLKMAN_CLK_CTRL_WDT1_CLOCK_ENABLE,
+    CLKMAN_RTOS_MODE    = MXC_F_CLKMAN_CLK_CTRL_RTOS_MODE,
+} clkman_enable_clk_t;
+
+/**
+ * @brief Defines clock scales for various clocks.
+ */
+typedef enum {
+    CLKMAN_SCALE_DISABLED   = MXC_V_CLKMAN_CLK_SCALE_DISABLED,      /** Clock disabled */
+    CLKMAN_SCALE_DIV_1      = MXC_V_CLKMAN_CLK_SCALE_DIV_1,         /** Clock scale for dividing by 1 */
+    CLKMAN_SCALE_DIV_2      = MXC_V_CLKMAN_CLK_SCALE_DIV_2,         /** Clock scale for dividing by 2 */
+    CLKMAN_SCALE_DIV_4      = MXC_V_CLKMAN_CLK_SCALE_DIV_4,         /** Clock scale for dividing by 4 */
+    CLKMAN_SCALE_DIV_8      = MXC_V_CLKMAN_CLK_SCALE_DIV_8,         /** Clock scale for dividing by 8 */
+    CLKMAN_SCALE_DIV_16     = MXC_V_CLKMAN_CLK_SCALE_DIV_16,        /** Clock scale for dividing by 16 */
+    CLKMAN_SCALE_DIV_32     = MXC_V_CLKMAN_CLK_SCALE_DIV_32,        /** Clock scale for dividing by 32 */
+    CLKMAN_SCALE_DIV_64     = MXC_V_CLKMAN_CLK_SCALE_DIV_64,        /** Clock scale for dividing by 64 */
+    CLKMAN_SCALE_DIV_128    = MXC_V_CLKMAN_CLK_SCALE_DIV_128,       /** Clock scale for dividing by 128 */
+    CLKMAN_SCALE_DIV_256    = MXC_V_CLKMAN_CLK_SCALE_DIV_256,       /** Clock scale for dividing by 256 */
+    CLKMAN_SCALE_AUTO                                               /** Clock scale to auto select divider */
+} clkman_scale_t;
+
+/**
+ * @brief Defines clock selections for the watchdog timers.
+ */
+typedef enum {
+    CLKMAN_WDT_SELECT_SCALED_SYS_CLK_CTRL   = MXC_V_CLKMAN_WDT0_CLOCK_SELECT_SCALED_SYS_CLK_CTRL_4_WDT0,
+    CLKMAN_WDT_SELECT_32KHZ_RTC_OSCILLATOR  = MXC_V_CLKMAN_WDT0_CLOCK_SELECT_32KHZ_RTC_OSCILLATOR,
+    CLKMAN_WDT_SELECT_96MHZ_OSCILLATOR      = MXC_V_CLKMAN_WDT0_CLOCK_SELECT_96MHZ_OSCILLATOR,
+    CLKMAN_WDT_SELECT_NANO_RING_OSCILLATOR  = MXC_V_CLKMAN_WDT0_CLOCK_SELECT_NANO_RING_OSCILLATOR,
+    CLKMAN_WDT_SELECT_DISABLED
+} clkman_wdt_clk_select_t;
+
+
+/***** Function Prototypes *****/
+
+/**
+ * @brief Selects the system clock source.
+ * @note  4MHz System source can only be divided down by a maximum factor of 8.
+ * @param select    System clock source.
+ * @param scale     System clock scaler.
+ */
+void CLKMAN_SetSystemClock(clkman_system_source_select_t select, clkman_system_scale_t scale);
+
+/**
+ * @brief Enables/disables the Crypto/TPU relaxation oscillator
+ * @param enable    enable (1) or disable (0)
+ */
+void CLKMAN_CryptoClockEnable(int enable);
+
+/**
+ * @brief Enables/Disables the specified clock.
+ * @param clk       clock to enable/disable
+ * @param enable    enable (1) or disable (0)
+ */
+void CLKMAN_ClockGate(clkman_enable_clk_t clk, int enable);
+
+/**
+ * @brief Sets the specified clock scaler value.
+ * @param clk       clock to set scaler value for
+ * @param scale     clock scaler value
+ */
+void CLKMAN_SetClkScale(clkman_clk_t clk, clkman_scale_t scale);
+
+/**
+ * @brief Get the specified clock scaler value
+ * @param clk       clock to get the scaler value for
+ */
+clkman_scale_t CLKMAN_GetClkScale(clkman_clk_t clk);
+
+/**
+ * @brief Selects the clock source for the watchdog timer
+ * @param idx       index of the watchdog timer
+ * @param select    clock to select
+ * @returns E_NO_ERROR if successful
+ */
+int CLKMAN_WdtClkSelect(unsigned int idx, clkman_wdt_clk_select_t select);
+
+/**
+ * @brief   Get the interrupt flags
+ * @returns mask    mask of flags set
+ */
+__STATIC_INLINE uint32_t CLKMAN_GetFlags(void)
+{
+    return MXC_CLKMAN->intfl;
+}
+
+/**
+ * @brief Clear the specified interrupt flags
+ * @param mask      mask of flags to clear
+ */
+__STATIC_INLINE void CLKMAN_ClrFlags(uint32_t mask)
+{
+    MXC_CLKMAN->intfl = mask;
+}
+
+/**
+ * @brief Enable the specified interrupt flags
+ * @param mask      mask of flags to enable
+ */
+__STATIC_INLINE void CLKMAN_EnableInt(uint32_t mask)
+{
+    MXC_CLKMAN->inten |= mask;
+}
+
+/**
+ * @brief Disable the specified interrupt flags
+ * @param mask      mask of flags to disable
+ */
+__STATIC_INLINE void CLKMAN_DisableInt(uint32_t mask)
+{
+    MXC_CLKMAN->inten &= ~mask;
+}
+
+/**
+ * @brief Trim the ring oscillator.
+ */
+void CLKMAN_TrimRO(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CLKMAN_H_ */