| /* |
| * Copyright (c) 2016, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * o Redistributions of source code must retain the above copyright notice, this list |
| * of conditions and the following disclaimer. |
| * |
| * o Redistributions in binary form must reproduce the above copyright notice, this |
| * list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * o Neither the name of the copyright holder nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "fsl_utick.h" |
| #include "fsl_power.h" |
| /******************************************************************************* |
| * Definitions |
| ******************************************************************************/ |
| |
| /* Typedef for interrupt handler. */ |
| typedef void (*utick_isr_t)(UTICK_Type *base, utick_callback_t cb); |
| |
| /******************************************************************************* |
| * Prototypes |
| ******************************************************************************/ |
| /*! |
| * @brief Gets the instance from the base address |
| * |
| * @param base UTICK peripheral base address |
| * |
| * @return The UTICK instance |
| */ |
| static uint32_t UTICK_GetInstance(UTICK_Type *base); |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| /* Array of UTICK handle. */ |
| static utick_callback_t s_utickHandle[FSL_FEATURE_SOC_UTICK_COUNT]; |
| /* Array of UTICK peripheral base address. */ |
| static UTICK_Type *const s_utickBases[] = UTICK_BASE_PTRS; |
| /* Array of UTICK IRQ number. */ |
| static const IRQn_Type s_utickIRQ[] = UTICK_IRQS; |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| /* Array of UTICK clock name. */ |
| static const clock_ip_name_t s_utickClock[] = UTICK_CLOCKS; |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| /* UTICK ISR for transactional APIs. */ |
| static utick_isr_t s_utickIsr; |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| static uint32_t UTICK_GetInstance(UTICK_Type *base) |
| { |
| uint32_t instance; |
| |
| /* Find the instance index from base address mappings. */ |
| for (instance = 0; instance < ARRAY_SIZE(s_utickBases); instance++) |
| { |
| if (s_utickBases[instance] == base) |
| { |
| break; |
| } |
| } |
| |
| assert(instance < ARRAY_SIZE(s_utickBases)); |
| |
| return instance; |
| } |
| |
| void UTICK_SetTick(UTICK_Type *base, utick_mode_t mode, uint32_t count, utick_callback_t cb) |
| { |
| uint32_t instance; |
| |
| /* Get instance from peripheral base address. */ |
| instance = UTICK_GetInstance(base); |
| |
| /* Save the handle in global variables to support the double weak mechanism. */ |
| s_utickHandle[instance] = cb; |
| EnableDeepSleepIRQ(s_utickIRQ[instance]); |
| base->CTRL = count | UTICK_CTRL_REPEAT(mode); |
| } |
| |
| void UTICK_Init(UTICK_Type *base) |
| { |
| /* Enable utick clock */ |
| CLOCK_EnableClock(s_utickClock[UTICK_GetInstance(base)]); |
| /* Power up Watchdog oscillator*/ |
| POWER_DisablePD(kPDRUNCFG_PD_WDT_OSC); |
| s_utickIsr = UTICK_HandleIRQ; |
| } |
| |
| void UTICK_Deinit(UTICK_Type *base) |
| { |
| /* Turn off utick */ |
| base->CTRL = 0; |
| /* Disable utick clock */ |
| CLOCK_DisableClock(s_utickClock[UTICK_GetInstance(base)]); |
| } |
| |
| uint32_t UTICK_GetStatusFlags(UTICK_Type *base) |
| { |
| return (base->STAT); |
| } |
| |
| void UTICK_ClearStatusFlags(UTICK_Type *base) |
| { |
| base->STAT = UTICK_STAT_INTR_MASK; |
| } |
| |
| void UTICK_HandleIRQ(UTICK_Type *base, utick_callback_t cb) |
| { |
| UTICK_ClearStatusFlags(base); |
| if (cb) |
| { |
| cb(); |
| } |
| } |
| |
| #if defined(UTICK0) |
| void UTICK0_DriverIRQHandler(void) |
| { |
| s_utickIsr(UTICK0, s_utickHandle[0]); |
| } |
| #endif |
| #if defined(UTICK1) |
| void UTICK1_DriverIRQHandler(void) |
| { |
| s_utickIsr(UTICK1, s_utickHandle[1]); |
| } |
| #endif |
| #if defined(UTICK2) |
| void UTICK2_DriverIRQHandler(void) |
| { |
| s_utickIsr(UTICK2, s_utickHandle[2]); |
| } |
| #endif |