diff options
author | Dominik Sliwa <dominik.sliwa@toradex.com> | 2018-10-30 16:31:29 +0100 |
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committer | Dominik Sliwa <dominik.sliwa@toradex.com> | 2018-10-31 11:54:38 +0100 |
commit | 56e86c626df3dbf74c1021210636a7c5d92a49ce (patch) | |
tree | 54ba9581ad14d838d8926e4e6d673befad1f932c /drivers/fsl_cmt.c | |
parent | 4dfc5493fec8f6290457446b0478695b153da60a (diff) |
move to cmakeapalis-tk1-k20-freertos-v9
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'drivers/fsl_cmt.c')
-rw-r--r-- | drivers/fsl_cmt.c | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/drivers/fsl_cmt.c b/drivers/fsl_cmt.c deleted file mode 100644 index 8cf72bc..0000000 --- a/drivers/fsl_cmt.c +++ /dev/null @@ -1,265 +0,0 @@ -/* - * 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_cmt.h" - -/******************************************************************************* - * Definitions - ******************************************************************************/ - -/* The standard intermediate frequency (IF). */ -#define CMT_INTERMEDIATEFREQUENCY_8MHZ (8000000U) -/* CMT data modulate mask. */ -#define CMT_MODULATE_COUNT_WIDTH (8U) -/* CMT diver 1. */ -#define CMT_CMTDIV_ONE (1) -/* CMT diver 2. */ -#define CMT_CMTDIV_TWO (2) -/* CMT diver 4. */ -#define CMT_CMTDIV_FOUR (4) -/* CMT diver 8. */ -#define CMT_CMTDIV_EIGHT (8) - -/******************************************************************************* - * Prototypes - ******************************************************************************/ - -/*! - * @brief Get instance number for CMT module. - * - * @param base CMT peripheral base address. - */ -static uint32_t CMT_GetInstance(CMT_Type *base); - -/******************************************************************************* - * Variables - ******************************************************************************/ - -#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) -/*! @brief Pointers to cmt clocks for each instance. */ -static const clock_ip_name_t s_cmtClock[FSL_FEATURE_SOC_CMT_COUNT] = CMT_CLOCKS; -#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ - -/*! @brief Pointers to cmt bases for each instance. */ -static CMT_Type *const s_cmtBases[] = CMT_BASE_PTRS; - -/*! @brief Pointers to cmt IRQ number for each instance. */ -static const IRQn_Type s_cmtIrqs[] = CMT_IRQS; - -/******************************************************************************* - * Codes - ******************************************************************************/ - -static uint32_t CMT_GetInstance(CMT_Type *base) -{ - uint32_t instance; - - /* Find the instance index from base address mappings. */ - for (instance = 0; instance < ARRAY_SIZE(s_cmtBases); instance++) - { - if (s_cmtBases[instance] == base) - { - break; - } - } - - assert(instance < ARRAY_SIZE(s_cmtBases)); - - return instance; -} - -void CMT_GetDefaultConfig(cmt_config_t *config) -{ - assert(config); - - /* Default infrared output is enabled and set with high active, the divider is set to 1. */ - config->isInterruptEnabled = false; - config->isIroEnabled = true; - config->iroPolarity = kCMT_IROActiveHigh; - config->divider = kCMT_SecondClkDiv1; -} - -void CMT_Init(CMT_Type *base, const cmt_config_t *config, uint32_t busClock_Hz) -{ - assert(config); - assert(busClock_Hz >= CMT_INTERMEDIATEFREQUENCY_8MHZ); - - uint8_t divider; - -#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) - /* Ungate clock. */ - CLOCK_EnableClock(s_cmtClock[CMT_GetInstance(base)]); -#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ - - /* Sets clock divider. The divider set in pps should be set - to make sycClock_Hz/divder = 8MHz */ - base->PPS = CMT_PPS_PPSDIV(busClock_Hz / CMT_INTERMEDIATEFREQUENCY_8MHZ - 1); - divider = base->MSC; - divider &= ~CMT_MSC_CMTDIV_MASK; - divider |= CMT_MSC_CMTDIV(config->divider); - base->MSC = divider; - - /* Set the IRO signal. */ - base->OC = CMT_OC_CMTPOL(config->iroPolarity) | CMT_OC_IROPEN(config->isIroEnabled); - - /* Set interrupt. */ - if (config->isInterruptEnabled) - { - CMT_EnableInterrupts(base, kCMT_EndOfCycleInterruptEnable); - EnableIRQ(s_cmtIrqs[CMT_GetInstance(base)]); - } -} - -void CMT_Deinit(CMT_Type *base) -{ - /*Disable the CMT modulator. */ - base->MSC = 0; - - /* Disable the interrupt. */ - CMT_DisableInterrupts(base, kCMT_EndOfCycleInterruptEnable); - DisableIRQ(s_cmtIrqs[CMT_GetInstance(base)]); - -#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) - /* Gate the clock. */ - CLOCK_DisableClock(s_cmtClock[CMT_GetInstance(base)]); -#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ -} - -void CMT_SetMode(CMT_Type *base, cmt_mode_t mode, cmt_modulate_config_t *modulateConfig) -{ - uint8_t mscReg = base->MSC; - - /* Judge the mode. */ - if (mode != kCMT_DirectIROCtl) - { - assert(modulateConfig); - - /* Set carrier generator. */ - CMT_SetCarrirGenerateCountOne(base, modulateConfig->highCount1, modulateConfig->lowCount1); - if (mode == kCMT_FSKMode) - { - CMT_SetCarrirGenerateCountTwo(base, modulateConfig->highCount2, modulateConfig->lowCount2); - } - - /* Set carrier modulator. */ - CMT_SetModulateMarkSpace(base, modulateConfig->markCount, modulateConfig->spaceCount); - mscReg &= ~ (CMT_MSC_FSK_MASK | CMT_MSC_BASE_MASK); - mscReg |= mode; - } - else - { - mscReg &= ~CMT_MSC_MCGEN_MASK; - } - /* Set the CMT mode. */ - base->MSC = mscReg; -} - -cmt_mode_t CMT_GetMode(CMT_Type *base) -{ - uint8_t mode = base->MSC; - - if (!(mode & CMT_MSC_MCGEN_MASK)) - { /* Carrier modulator disabled and the IRO signal is in direct software control. */ - return kCMT_DirectIROCtl; - } - else - { - /* Carrier modulator is enabled. */ - if (mode & CMT_MSC_BASE_MASK) - { - /* Base band mode. */ - return kCMT_BasebandMode; - } - else if (mode & CMT_MSC_FSK_MASK) - { - /* FSK mode. */ - return kCMT_FSKMode; - } - else - { - /* Time mode. */ - return kCMT_TimeMode; - } - } -} - -uint32_t CMT_GetCMTFrequency(CMT_Type *base, uint32_t busClock_Hz) -{ - uint32_t frequency; - uint32_t divider; - - /* Get intermediate frequency. */ - frequency = busClock_Hz / ((base->PPS & CMT_PPS_PPSDIV_MASK) + 1); - - /* Get the second divider. */ - divider = ((base->MSC & CMT_MSC_CMTDIV_MASK) >> CMT_MSC_CMTDIV_SHIFT); - /* Get CMT frequency. */ - switch ((cmt_second_clkdiv_t)divider) - { - case kCMT_SecondClkDiv1: - frequency = frequency / CMT_CMTDIV_ONE; - break; - case kCMT_SecondClkDiv2: - frequency = frequency / CMT_CMTDIV_TWO; - break; - case kCMT_SecondClkDiv4: - frequency = frequency / CMT_CMTDIV_FOUR; - break; - case kCMT_SecondClkDiv8: - frequency = frequency / CMT_CMTDIV_EIGHT; - break; - default: - frequency = frequency / CMT_CMTDIV_ONE; - break; - } - - return frequency; -} - -void CMT_SetModulateMarkSpace(CMT_Type *base, uint32_t markCount, uint32_t spaceCount) -{ - /* Set modulate mark. */ - base->CMD1 = (markCount >> CMT_MODULATE_COUNT_WIDTH) & CMT_CMD1_MB_MASK; - base->CMD2 = (markCount & CMT_CMD2_MB_MASK); - /* Set modulate space. */ - base->CMD3 = (spaceCount >> CMT_MODULATE_COUNT_WIDTH) & CMT_CMD3_SB_MASK; - base->CMD4 = spaceCount & CMT_CMD4_SB_MASK; -} - -void CMT_SetIroState(CMT_Type *base, cmt_infrared_output_state_t state) -{ - uint8_t ocReg = base->OC; - - ocReg &= ~CMT_OC_IROL_MASK; - ocReg |= CMT_OC_IROL(state); - - /* Set the infrared output signal control. */ - base->OC = ocReg; -} |