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Merged in JordanMacIntyre/nuttx/PWM_driver (pull request #106)

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Pwm_driver
This commit is contained in:
Gregory Nutt 2016-07-25 14:59:45 -06:00
commit 250b9d5597
7 changed files with 161 additions and 15 deletions
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2
arch/arm/src/kinetis/kinetis_pwm.c
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@ -58,7 +58,7 @@
#include "chip.h"
#include "kinetis.h"
#include "chip/kinetis_pwm.h"
#include "kinetis_pwm.h"
#include "chip/kinetis_gpio.h"
#include "chip/kinetis_ftm.h"
#include "chip/kinetis_sim.h"

8
arch/arm/src/kl/kl_pwm.h
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@ -90,13 +90,13 @@
# elif CONFIG_KL_TPM0_CHANNEL == 1
# define PWM_TPM0_PINCFG GPIO_TPM0_CH1OUT
# elif CONFIG_KL_TPM0_CHANNEL == 2
# define PWM_TPM0_PINCFG GPIO_TPM1_CH2OUT
# define PWM_TPM0_PINCFG GPIO_TPM0_CH2OUT
# elif CONFIG_KL_TPM0_CHANNEL == 3
# define PWM_TPM0_PINCFG GPIO_TPM1_CH3OUT
# define PWM_TPM0_PINCFG GPIO_TPM0_CH3OUT
# elif CONFIG_KL_TPM0_CHANNEL == 4
# define PWM_TPM0_PINCFG GPIO_TPM1_CH4OUT
# define PWM_TPM0_PINCFG GPIO_TPM0_CH4OUT
# elif CONFIG_KL_TPM0_CHANNEL == 5
# define PWM_TPM0_PINCFG GPIO_TPM1_CH5OUT
# define PWM_TPM0_PINCFG GPIO_TPM0_CH5OUT
# else
# error "Unsupported value of CONFIG_KL_TPM1_CHANNEL"
# endif

13
configs/freedom-k64f/include/board.h
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@ -134,6 +134,19 @@
# define BOARD_SDHC_SD4MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(3)
#endif
/* PWM Configuration */
/* FTM0 Channels */
/* Channels can be modified using kinetis_k64pinmux.h */
#define GPIO_FTM0_CH0OUT PIN_FTM0_CH0_1
#define GPIO_FTM0_CH1OUT PIN_FTM0_CH1_1
#define GPIO_FTM0_CH2OUT PIN_FTM0_CH2_2
#define GPIO_FTM0_CH3OUT PIN_FTM0_CH3_1
#define GPIO_FTM0_CH4OUT PIN_FTM0_CH4_1
#define GPIO_FTM0_CH5OUT PIN_FTM0_CH5_1
/* LED definitions ******************************************************************/
/* The Freedom K64F has a single RGB LED driven by the K64F as follows:
*

25
configs/freedom-k64f/nsh/defconfig
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@ -8,12 +8,12 @@
#
# CONFIG_EXPERIMENTAL is not set
# CONFIG_DEFAULT_SMALL is not set
# CONFIG_HOST_LINUX is not set
CONFIG_HOST_LINUX=y
# CONFIG_HOST_OSX is not set
CONFIG_HOST_WINDOWS=y
# CONFIG_HOST_WINDOWS is not set
# CONFIG_HOST_OTHER is not set
# CONFIG_WINDOWS_NATIVE is not set
CONFIG_WINDOWS_CYGWIN=y
# CONFIG_WINDOWS_CYGWIN is not set
# CONFIG_WINDOWS_MSYS is not set
# CONFIG_WINDOWS_OTHER is not set
@ -216,7 +216,7 @@ CONFIG_KINETIS_UART0=y
# CONFIG_KINETIS_CMP is not set
# CONFIG_KINETIS_VREF is not set
CONFIG_KINETIS_SDHC=y
# CONFIG_KINETIS_FTM0 is not set
CONFIG_KINETIS_FTM0=y
# CONFIG_KINETIS_FTM1 is not set
# CONFIG_KINETIS_FTM2 is not set
# CONFIG_KINETIS_LPTIMER is not set
@ -232,6 +232,8 @@ CONFIG_KINETIS_SDHC=y
# CONFIG_KINETIS_CRC is not set
# CONFIG_KINETIS_PDB is not set
# CONFIG_KINETIS_PIT is not set
CONFIG_KINETIS_FTM0_PWM=y
CONFIG_KINETIS_FTM0_CHANNEL=2
#
# Kinetis GPIO Interrupt Configuration
@ -339,7 +341,7 @@ CONFIG_LIB_BOARDCTL=y
# CONFIG_BOARDCTL_UNIQUEID is not set
# CONFIG_BOARDCTL_TSCTEST is not set
# CONFIG_BOARDCTL_ADCTEST is not set
# CONFIG_BOARDCTL_PWMTEST is not set
CONFIG_BOARDCTL_PWMTEST=y
# CONFIG_BOARDCTL_GRAPHICS is not set
# CONFIG_BOARDCTL_IOCTL is not set
@ -347,11 +349,11 @@ CONFIG_LIB_BOARDCTL=y
# RTOS Features
#
CONFIG_DISABLE_OS_API=y
# CONFIG_DISABLE_POSIX_TIMERS is not set
CONFIG_DISABLE_POSIX_TIMERS=y
# CONFIG_DISABLE_PTHREAD is not set
# CONFIG_DISABLE_SIGNALS is not set
# CONFIG_DISABLE_MQUEUE is not set
# CONFIG_DISABLE_ENVIRON is not set
CONFIG_DISABLE_MQUEUE=y
CONFIG_DISABLE_ENVIRON=y
#
# Clocks and Timers
@ -468,7 +470,7 @@ CONFIG_DEV_NULL=y
# CONFIG_CAN is not set
# CONFIG_ARCH_HAVE_PWM_PULSECOUNT is not set
# CONFIG_ARCH_HAVE_PWM_MULTICHAN is not set
# CONFIG_PWM is not set
CONFIG_PWM=y
# CONFIG_ARCH_HAVE_I2CRESET is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set
@ -777,6 +779,11 @@ CONFIG_EXAMPLES_NSH=y
# CONFIG_EXAMPLES_PCA9635 is not set
# CONFIG_EXAMPLES_POSIXSPAWN is not set
# CONFIG_EXAMPLES_PPPD is not set
CONFIG_EXAMPLES_PWM=y
CONFIG_EXAMPLES_PWM_DEVPATH="/dev/pwm0"
CONFIG_EXAMPLES_PWM_FREQUENCY=100
CONFIG_EXAMPLES_PWM_DURATION=5
CONFIG_EXAMPLES_PWM_DUTYPCT=50
# CONFIG_EXAMPLES_RGBLED is not set
# CONFIG_EXAMPLES_RGMP is not set
# CONFIG_EXAMPLES_SENDMAIL is not set

4
configs/freedom-k64f/src/Makefile
View File

@ -69,4 +69,8 @@ ifeq ($(CONFIG_USBMSC),y)
CSRCS += k64_usbmsc.c
endif
ifeq ($(CONFIG_PWM),y)
CSRCS += k64_pwm.c
endif
include $(TOPDIR)/configs/Board.mk

122
configs/freedom-k64f/src/k64_pwm.c Normal file
View File

@ -0,0 +1,122 @@
/************************************************************************************
* configs/freedom-k64f/src/k64_pwm.c
*
* Copyright (C) 2013, 2015, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
* Jordan MacIntyre <jordanroymax@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX 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 OWNER 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.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/board.h>
#include <nuttx/pwm.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "kinetis_pwm.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration *******************************************************************/
/* PWM
*
* The Kinetis Freedom board provides a LED on GPIO.
*/
#ifdef CONFIG_PWM
extern struct pwm_lowerhalf_s *kinetis_pwminitialize(int timer);
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: board_pwm_setup
*
* Description:
* All Kinetis K architectures must provide the following interface to work with
* examples/pwm.
*
************************************************************************************/
int board_pwm_setup(void)
{
static bool initialized = false;
struct pwm_lowerhalf_s *pwm;
int ret;
/* Have we already initialized? */
if (!initialized)
{
/* Call k64_pwminitialize() to get an instance of the PWM interface */
pwm = kinetis_pwminitialize(0);
if (!pwm)
{
aerr("ERROR: Failed to get the K64 PWM lower half\n");
return -ENODEV;
}
/* Register the PWM driver at "/dev/pwm0" */
ret = pwm_register("/dev/pwm0", pwm);
if (ret < 0)
{
aerr("ERROR: pwm_register failed: %d\n", ret);
return ret;
}
/* Now we are initialized */
initialized = true;
}
return OK;
}
#endif /* CONFIG_PWM */

2
configs/freedom-kl25z/nsh/defconfig
View File

@ -186,7 +186,7 @@ CONFIG_KL_TPM0=y
CONFIG_KL_SYSTICK_CORECLK=y
# CONFIG_KL_SYSTICK_CORECLK_DIV16 is not set
CONFIG_KL_TPM0_PWM=y
CONFIG_KL_TPM0_CHANNEL=0
CONFIG_KL_TPM0_CHANNEL=2
#
# Kinetis GPIO Interrupt Configuration