186 lines
6.8 KiB
C
186 lines
6.8 KiB
C
/*
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* Copyright (c) 2016, Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file Header file for the PWM driver for Freescale K64 FlexTimer Module (FTM)
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*/
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#ifndef __PWM_K64_FTM_H__
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#define __PWM_K64_FTM_H__
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#include <stdbool.h>
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/* Valid prescale values */
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#define PWM_K64_FTM_PRESCALE_1 1
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#define PWM_K64_FTM_PRESCALE_2 2
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#define PWM_K64_FTM_PRESCALE_4 4
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#define PWM_K64_FTM_PRESCALE_8 8
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#define PWM_K64_FTM_PRESCALE_16 16
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#define PWM_K64_FTM_PRESCALE_32 32
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#define PWM_K64_FTM_PRESCALE_64 64
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#define PWM_K64_FTM_PRESCALE_128 128
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/* flags are not used. This value can be passed into pwm_pin_configure */
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#define PWM_K64_FTM_FLAG_NONE 0
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/* FTM register bit definitions */
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#define PWM_K64_FTM_SC(base) ((base)+0x00) /* Status And Control */
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#define PWM_K64_FTM_CNT(base) ((base)+0x04) /* Counter */
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#define PWM_K64_FTM_MOD(base) ((base)+0x08) /* Modulo */
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#define PWM_K64_FTM_CNSC(base, ch) ((base)+0x0C+(ch)*8) /* Channel Status&Ctrl*/
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#define PWM_K64_FTM_CNV(base, ch) ((base)+0x10+(ch)*8) /* Channel Value */
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#define PWM_K64_FTM_CNTIN(base) ((base)+0x4C) /* Counter Initial Value */
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#define PWM_K64_FTM_STATUS(base) ((base)+0x50) /* Capture And Compare Status*/
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#define PWM_K64_FTM_MODE(base) ((base)+0x54) /* Features Mode Selection */
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#define PWM_K64_FTM_SYNC(base) ((base)+0x58) /* Synchronization */
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#define PWM_K64_FTM_OUTINIT(base) ((base)+0x5C) /* Initial Channels Output */
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#define PWM_K64_FTM_OUTMASK(base) ((base)+0x60) /* Output Mask */
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#define PWM_K64_FTM_COMBINE(base) ((base)+0x64) /* Function For Linked Chans */
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#define PWM_K64_FTM_DEADTIME(base) ((base)+0x68) /* Deadtime Insertion Ctrl */
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#define PWM_K64_FTM_EXTTRIG(base) ((base)+0x6C) /* FTM External Trigger */
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#define PWM_K64_FTM_POL(base) ((base)+0x70) /* Channels Polarity */
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#define PWM_K64_FTM_FMS(base) ((base)+0x74) /* Fault Mode Status */
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#define PWM_K64_FTM_FILTER(base) ((base)+0x78) /* Input Capture Filter Ctrl */
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#define PWM_K64_FTM_FLTCTRL(base) ((base)+0x7C) /* Fault Control */
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#define PWM_K64_FTM_QDCTRL(base) ((base)+0x80) /* Quadrature Decoder Ctrl */
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#define PWM_K64_FTM_CONF(base) ((base)+0x84) /* Configuration */
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#define PWM_K64_FTM_FLTPOL(base) ((base)+0x88) /* FTM Fault Input Polarity */
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#define PWM_K64_FTM_SYNCONF(base) ((base)+0x8C) /* Synchronization Config */
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#define PWM_K64_FTM_INVCTRL(base) ((base)+0x90) /* FTM Inverting Control */
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#define PWM_K64_FTM_SWOCTRL(base) ((base)+0x94) /* FTM Software Output Ctrl */
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#define PWM_K64_FTM_PWMLOAD(base) ((base)+0x98) /* FTM PWM Load */
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/* PWM_K64_FTM_SC Status And Control */
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#define PWM_K64_FTM_SC_CLKS_MASK 0x18
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#define PWM_K64_FTM_SC_CLKS_SHIFT 3
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#define PWM_K64_FTM_SC_CLKS_DISABLE 0x0
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#define PWM_K64_FTM_SC_CLKS_SYSTEM 0x1
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#define PWM_K64_FTM_SC_CLKS_FIXED 0x2
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#define PWM_K64_FTM_SC_CLKS_EXTERNAL 0x3
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#define PWM_K64_FTM_SC_PS_D1 (0x0<<0)
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#define PWM_K64_FTM_SC_PS_D2 (0x1<<0)
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#define PWM_K64_FTM_SC_PS_D4 (0x2<<0)
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#define PWM_K64_FTM_SC_PS_D8 (0x3<<0)
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#define PWM_K64_FTM_SC_PS_D16 (0x4<<0)
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#define PWM_K64_FTM_SC_PS_D32 (0x5<<0)
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#define PWM_K64_FTM_SC_PS_D64 (0x6<<0)
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#define PWM_K64_FTM_SC_PS_D128 (0x7<<0)
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#define PWM_K64_FTM_SC_PS_MASK (0x7<<0)
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/* PWM_K64_FTM_CNSC (FTMx_CnSC) Channel-n Status And Control */
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#define PWM_K64_FTM_CNSC_DMA (0x1<<0)
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#define PWM_K64_FTM_CNSC_ELSA (0x1<<2)
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#define PWM_K64_FTM_CNSC_ELSB (0x1<<3)
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#define PWM_K64_FTM_CNSC_MSA (0x1<<4)
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#define PWM_K64_FTM_CNSC_MSB (0x1<<5)
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#define PWM_K64_FTM_CNSC_CHIE (0x1<<6)
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#define PWM_K64_FTM_CNSC_CHF (0x1<<7)
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/* PWM_K64_FTM_MODE Features Mode Selection */
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#define PWM_K64_FTM_MODE_FTMEN (0x1<<0)
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#define PWM_K64_FTM_MODE_INIT (0x1<<1)
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#define PWM_K64_FTM_MODE_WPDIS (0x1<<2)
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#define PWM_K64_FTM_MODE_PWMSYNC (0x1<<3)
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#define PWM_K64_FTM_MODE_CAPTEST (0x1<<4)
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#define PWM_K64_FTM_MODE_FAULTM_DISABLE (0x0<<5)
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#define PWM_K64_FTM_MODE_FAULTM_EVEN (0x1<<5)
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#define PWM_K64_FTM_MODE_FAULTM_MANUAL (0x2<<5)
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#define PWM_K64_FTM_MODE_FAULTM_AUTO (0x3<<5)
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#define PWM_K64_FTM_MODE_FAULTM_MASK (0x3<<5)
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#define PWM_K64_FTM_MODE_FAULTIE (0x1<<7)
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/* PWM_K64_FTM_SYNC PWM Synchronization */
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#define PWM_K64_FTM_SYNC_CNTMIN (0x1<<0)
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#define PWM_K64_FTM_SYNC_CNTMAX (0x1<<1)
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#define PWM_K64_FTM_SYNC_REINIT (0x1<<2)
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#define PWM_K64_FTM_SYNC_SYNCHOM (0x1<<3)
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#define PWM_K64_FTM_SYNC_TRIG0 (0x1<<4)
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#define PWM_K64_FTM_SYNC_TRIG1 (0x1<<5)
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#define PWM_K64_FTM_SYNC_TRIG2 (0x1<<6)
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#define PWM_K64_FTM_SYNC_SWSYNC (0x1<<7)
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/* PWM_K64_FTM_EXTTRIG FTM External Trigger */
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#define PWM_K64_FTM_EXTTRIG_CH2TRIG (0x1<<0)
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#define PWM_K64_FTM_EXTTRIG_CH3TRIG (0x1<<1)
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#define PWM_K64_FTM_EXTTRIG_CH4TRIG (0x1<<2)
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#define PWM_K64_FTM_EXTTRIG_CH5TRIG (0x1<<3)
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#define PWM_K64_FTM_EXTTRIG_CH0TRIG (0x1<<4)
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#define PWM_K64_FTM_EXTTRIG_CH1TRIG (0x1<<5)
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#define PWM_K64_FTM_EXTTRIG_INTTRIGEN (0x1<<6)
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#define PWM_K64_FTM_EXTTRIG_TRIGF (0x1<<7)
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/* PWM_K64_FTM_QDCTRL Quadrature Decoder Ctrl&Status */
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#define PWM_K64_FTM_QDCTRL_QUADEN (0x1<<0)
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/* PWM_K64_FTM_SYNCONF Syncronization Configuration */
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#define PWM_K64_FTM_SYNCONF_HWTRIGMODE (0x1<<0)
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#define PWM_K64_FTM_SYNCONF_CNTINC (0x1<<2)
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#define PWM_K64_FTM_SYNCONF_INVC (0x1<<4)
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#define PWM_K64_FTM_SYNCONF_SWOC (0x1<<5)
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#define PWM_K64_FTM_SYNCONF_SYNCMODE (0x1<<7)
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/**
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* @brief Initialization function for FlexTimer Module FTM (PWM mode)
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*
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* @param dev Device struct
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* @return 0 if successful, failed otherwise
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*/
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extern int pwm_ftm_init(struct device *dev);
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/** Configuration data */
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struct pwm_ftm_config {
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/* FTM register base address */
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uint32_t ftm_num;
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/* FTM register base address */
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uint32_t reg_base;
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/* FTM prescale (1,2,4,8,16,32,64,128) */
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uint32_t prescale;
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/* FTM clock source */
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uint32_t clock_source;
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/* If phase is not 0, the odd-numbered channel is not available */
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bool phase_enable0; /* combine pwm0, pwm1 for phase capability */
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bool phase_enable2; /* combine pwm2, pwm3 for phase capability */
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bool phase_enable4; /* combine pwm4, pwm4 for phase capability */
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bool phase_enable6; /* combine pwm6, pwm5 for phase capability */
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/* FTM period (clock ticks) */
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uint32_t period;
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};
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/** Runtime driver data */
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struct pwm_ftm_drv_data {
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uint32_t phase[4];
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};
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#endif /* __PWM_K64_FTM_H__ */
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