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Add RGB LED support on STM32F103 Minimum board

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This commit is contained in:
Alan Carvalho de Assis 2016-10-26 13:27:58 -06:00 committed by Gregory Nutt
parent ca7ca0eb57
commit 4d29b898a6
5 changed files with 243 additions and 0 deletions
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14
configs/stm32f103-minimum/include/board.h
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@ -186,6 +186,20 @@
* Note: we don't need redefine GPIO_TIM3_CH3OUT because PB0 is not remap pin.
*/
/* RGB LED
*
* R = TIM1 CH1 on PA8 | G = TIM2 CH2 on PA1 | B = TIM4 CH4 on PB9
*
* Note: Pin configs: GPIO_TIM1_CH1OUT ; GPIO_TIM2_CH2OUT ; GPIO_TIM4_CH4OUT
*/
#define RGBLED_RPWMTIMER 1
#define RGBLED_RPWMCHANNEL 1
#define RGBLED_GPWMTIMER 2
#define RGBLED_GPWMCHANNEL 2
#define RGBLED_BPWMTIMER 4
#define RGBLED_BPWMCHANNEL 4
/************************************************************************************
* Public Data
************************************************************************************/

4
configs/stm32f103-minimum/src/Makefile
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@ -57,6 +57,10 @@ ifeq ($(CONFIG_PWM),y)
CSRCS += stm32_pwm.c
endif
ifeq ($(CONFIG_RGBLED),y)
CSRCS += stm32_rgbled.c
endif
ifeq ($(CONFIG_AUDIO_TONE),y)
CSRCS += stm32_tone.c
endif

11
configs/stm32f103-minimum/src/stm32_bringup.c
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@ -116,6 +116,17 @@ int stm32_bringup(void)
}
#endif
#ifdef CONFIG_RGBLED
/* Configure and initialize the RGB LED. */
ret = stm32_rgbled_setup();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: stm32_rgbled_setup() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_CL_MFRC522
ret = stm32_mfrc522initialize("/dev/rfid0");
if (ret < 0)

194
configs/stm32f103-minimum/src/stm32_rgbled.c Normal file
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@ -0,0 +1,194 @@
/************************************************************************************
* configs/stm32f4discovery/src/stm32_rgbled.c
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Alan Carvalho de Assis <acassis@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 <errno.h>
#include <debug.h>
#include <nuttx/drivers/pwm.h>
#include <nuttx/leds/rgbled.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "stm32_pwm.h"
#include "stm32f103_minimum.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
#define HAVE_RGBLED 1
#ifndef CONFIG_PWM
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM1
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM2
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM4
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM1_PWM
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM2_PWM
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM4_PWM
# undef HAVE_RGBLED
#endif
#if CONFIG_STM32_TIM1_CHANNEL != RGBLED_RPWMCHANNEL
# undef HAVE_PWM
#endif
#if CONFIG_STM32_TIM2_CHANNEL != RGBLED_GPWMCHANNEL
# undef HAVE_PWM
#endif
#if CONFIG_STM32_TIM4_CHANNEL != RGBLED_BPWMCHANNEL
# undef HAVE_PWM
#endif
#ifdef HAVE_RGBLED
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_rgbled_setup
*
* Description:
* Initial for support of a connected RGB LED using PWM.
*
************************************************************************************/
int stm32_rgbled_setup(void)
{
static bool initialized = false;
struct pwm_lowerhalf_s *ledr;
struct pwm_lowerhalf_s *ledg;
struct pwm_lowerhalf_s *ledb;
struct pwm_info_s info;
int ret;
/* Have we already initialized? */
if (!initialized)
{
/* Call stm32_pwminitialize() to get an instance of the PWM interface */
ledr = stm32_pwminitialize(RGBLED_RPWMTIMER);
if (!ledr)
{
lederr("ERROR: Failed to get the STM32 PWM lower half to LEDR\n");
return -ENODEV;
}
/* Define frequency and duty cycle */
info.frequency = 100;
info.duty = 0;
/* Initialize LED R */
ledr->ops->setup(ledr);
ledr->ops->start(ledr, &info);
/* Call stm32_pwminitialize() to get an instance of the PWM interface */
ledg = stm32_pwminitialize(RGBLED_GPWMTIMER);
if (!ledg)
{
lederr("ERROR: Failed to get the STM32 PWM lower half to LEDG\n");
return -ENODEV;
}
/* Initialize LED G */
ledg->ops->setup(ledg);
ledg->ops->start(ledg, &info);
/* Call stm32_pwminitialize() to get an instance of the PWM interface */
ledb = stm32_pwminitialize(RGBLED_BPWMTIMER);
if (!ledb)
{
lederr("ERROR: Failed to get the STM32 PWM lower half to LEDB\n");
return -ENODEV;
}
/* Initialize LED B */
ledb->ops->setup(ledb);
ledb->ops->start(ledb, &info);
/* Register the RGB LED diver at "/dev/rgbled0" */
ret = rgbled_register("/dev/rgbled0", ledr, ledg, ledb);
if (ret < 0)
{
lederr("ERROR: rgbled_register failed: %d\n", ret);
return ret;
}
/* Now we are initialized */
initialized = true;
}
return OK;
}
#else
# error "HAVE_RGBLED is undefined"
#endif /* HAVE_RGBLED */

20
configs/stm32f103-minimum/src/stm32f103_minimum.h
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@ -138,6 +138,26 @@ int stm32_bringup(void);
void stm32_spidev_initialize(void);
/****************************************************************************
* Name stm32_rgbled_setup
*
* Description:
* This function is called by board initialization logic to configure the
* RGB LED driver. This function will register the driver as /dev/rgbled0.
*
* Input Parameters:
* None
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
#ifdef CONFIG_RGBLED
int stm32_rgbled_setup(void);
#endif
/************************************************************************************
* Name: stm32_usbinitialize
*