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https://github.com/apache/nuttx.git
synced 2026-06-04 23:03:27 +08:00
Kinetis pwm support, based on kl_ftm driver.
Initial commit. Compile checked only.
This commit is contained in:
kfazz
@@ -383,6 +383,69 @@ config KINETIS_PIT
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endmenu
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config KINETIS_FTM0_PWM
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bool "FTM0 PWM"
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default n
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depends on KINETIS_FTM0
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---help---
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Reserve timer 0 for use by PWM
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Timer devices may be used for different purposes. One special purpose is
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to generate modulated outputs for such things as motor control. If KINETIS_FTM0
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is defined then THIS following may also be defined to indicate that
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the timer is intended to be used for pulsed output modulation.
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config KINETIS_FTM0_CHANNEL
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int "FTM0 PWM Output Channel"
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default 0
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range 0 7
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depends on KINETIS_FTM0_PWM
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---help---
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If FTM0 is enabled for PWM usage, you also need specifies the timer output
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channel {0,..,7}
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config KINETIS_FTM1_PWM
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bool "FTM1 PWM"
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default n
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depends on KINETIS_FTM1
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---help---
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Reserve timer 1 for use by PWM
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Timer devices may be used for different purposes. One special purpose is
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to generate modulated outputs for such things as motor control. If KINETIS_FTM1
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is defined then THIS following may also be defined to indicate that
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the timer is intended to be used for pulsed output modulation.
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config KINETIS_FTM1_CHANNEL
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int "FTM1 PWM Output Channel"
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default 0
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range 0 1
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depends on KINETIS_FTM1_PWM
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---help---
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If FTM1 is enabled for PWM usage, you also need specifies the timer output
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channel {0,..,1}
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config KINETIS_FTM2_PWM
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bool "FTM2 PWM"
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default n
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depends on KINETIS_FTM2
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---help---
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Reserve timer 2 for use by PWM
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Timer devices may be used for different purposes. One special purpose is
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to generate modulated outputs for such things as motor control. If KINETIS_FTM2
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is defined then THIS following may also be defined to indicate that
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the timer is intended to be used for pulsed output modulation.
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config KINETIS_FTM2_CHANNEL
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int "FTM2 PWM Output Channel"
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default 0
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range 0 1
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depends on KINETIS_FTM2_PWM
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---help---
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If FTM2 is enabled for PWM usage, you also need specifies the timer output
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channel {0,..,1}
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comment "Kinetis GPIO Interrupt Configuration"
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config GPIO_IRQ
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@@ -127,6 +127,10 @@ ifeq ($(CONFIG_KINETIS_DMA),y)
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CHIP_CSRCS += kinetis_dma.c kinetis_pindma.c
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endif
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ifeq ($(CONFIG_PWM),y)
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CHIP_CSRCS += kinetis_pwm.c
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endif
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ifeq ($(CONFIG_NET),y)
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ifeq ($(CONFIG_KINETIS_ENET),y)
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CHIP_CSRCS += kinetis_enet.c
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,197 @@
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/************************************************************************************
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* arch/arm/src/kinetis/kinetis_pwm.h
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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* Alan Carvalho de Assis <acassis@gmail.com>
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* Ken Fazzone <kfazz01@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_PWM_H
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#define __ARCH_ARM_SRC_KINETIS_KINETIS_PWM_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Configuration ********************************************************************/
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/* Timer devices may be used for different purposes. One special purpose is
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* to generate modulated outputs for such things as motor control. If CONFIG_KINETIS_FTMn
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* is defined then the CONFIG_KINETIS_FTMn_PWM must also be defined to indicate that
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* timer "n" is intended to be used for pulsed output signal generation.
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*/
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#ifndef CONFIG_KINETIS_FTM0
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# undef CONFIG_KINETIS_FTM0_PWM
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#endif
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#ifndef CONFIG_KINETIS_FTM1
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# undef CONFIG_KINETIS_FTM1_PWM
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#endif
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#ifndef CONFIG_KINETIS_FTM2
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# undef CONFIG_KINETIS_FTM2_PWM
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#endif
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/* Check if PWM support for any channel is enabled. */
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#if defined(CONFIG_KINETIS_FTM0_PWM) || defined(CONFIG_KINETIS_FTM1_PWM) || \
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defined(CONFIG_KINETIS_FTM2_PWM)
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#include <arch/board/board.h>
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#include "kinetis_pinmux.h"
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/* For each timer that is enabled for PWM usage, we need the following additional
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* configuration settings:
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*
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* CONFIG_KINETIS_FTMx_CHANNEL - Specifies the timer output channel {1,..,4}
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* PWM_FTMx_CHn - One of the values defined in kinetis*_pinmap.h. In the case
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* where there are multiple pin selections, the correct setting must be provided
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* in the arch/board/board.h file.
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*/
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#ifdef CONFIG_KINETIS_FTM0_PWM
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# if !defined(CONFIG_KINETIS_FTM0_CHANNEL)
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# error "CONFIG_KINETIS_FTM0_CHANNEL must be provided"
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 0
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH0OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 1
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH1OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 2
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH2OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 3
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH3OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 4
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH4OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 5
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH5OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 6
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH6OUT
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# elif CONFIG_KINETIS_FTM0_CHANNEL == 7
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# define PWM_FTM0_PINCFG GPIO_FTM0_CH7OUT
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# else
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# error "Unsupported value of CONFIG_KINETIS_FTM1_CHANNEL"
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# endif
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#endif
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#ifdef CONFIG_KINETIS_FTM1_PWM
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# if !defined(CONFIG_KINETIS_FTM1_CHANNEL)
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# error "CONFIG_KINETIS_FTM1_CHANNEL must be provided"
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 0
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH0OUT
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 1
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH1OUT
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 2
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH2OUT
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 3
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH3OUT
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 4
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH4OUT
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# elif CONFIG_KINETIS_FTM1_CHANNEL == 5
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# define PWM_FTM1_PINCFG GPIO_FTM1_CH5OUT
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# else
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# error "Unsupported value of CONFIG_KINETIS_FTM2_CHANNEL"
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# endif
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#endif
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#ifdef CONFIG_KINETIS_FTM2_PWM
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# if !defined(CONFIG_KINETIS_FTM2_CHANNEL)
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# error "CONFIG_KINETIS_FTM2_CHANNEL must be provided"
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 0
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH0OUT
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 1
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH1OUT
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 2
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH2OUT
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 3
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH3OUT
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 4
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH4OUT
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# elif CONFIG_KINETIS_FTM2_CHANNEL == 5
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# define PWM_FTM2_PINCFG GPIO_FTM2_CH5OUT
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# else
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# error "Unsupported value of CONFIG_KINETIS_FTM3_CHANNEL"
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# endif
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#endif
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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/************************************************************************************
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* Name: kinetis_pwminitialize
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*
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* Description:
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* Initialize one timer for use with the upper_level PWM driver.
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*
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* Input Parameters:
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* timer - A number identifying the timer use.
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*
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* Returned Value:
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* On success, a pointer to the kinetis lower half PWM driver is returned.
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* NULL is returned on any failure.
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*
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************************************************************************************/
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FAR struct pwm_lowerhalf_s *kinetis_pwminitialize(int timer);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_KINETIS_FTMx_PWM */
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#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_PWM_H */
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