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Kinetis:PWM

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This commit is contained in:
David Sidrane
2017-09-29 10:13:51 -04:00
committed by Daniel Agar
parent 58c3c8a94b
commit 2b54ef458b
5 changed files with 284 additions and 495 deletions
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src/drivers/boards/nxphlite-v3/CMakeLists.txt
-1
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@@ -44,7 +44,6 @@ px4_add_module(
nxphlite_can.c
nxphlite_init.c
nxphlite_led.c
nxphlite_pwm.c
nxphlite_sdhc.c
nxphlite_spi.c
nxphlite_timer_config.c
src/drivers/boards/nxphlite-v3/nxphlite_pwm.c
-106
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@@ -1,106 +0,0 @@
/************************************************************************************
*
* Copyright (C) 2013, 2015, 2016 Gregory Nutt. All rights reserved.
* Authors: Gregory Nutt <gnutt@nuttx.org>
* Jordan MacIntyre <jordanroymax@gmail.com>
* David Sidrane <david_s5@nscdg.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 <px4_config.h>
#include <sys/types.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/board.h>
#include <nuttx/drivers/pwm.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "kinetis_pwm.h"
#ifdef CONFIG_PWM
/************************************************************************************
* 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)
{
FAR struct pwm_lowerhalf_s *pwm;
static bool initialized = false;
int ret;
/* Have we already initialized? */
if (!initialized) {
/* Call nxphlite_pwminitialize() to get an instance of the PWM interface */
pwm = kinetis_pwminitialize(0);
if (!pwm) {
aerr("ERROR: Failed to get the kinetis 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 */