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Merged in antmerlino/nuttx/photon-rgb (pull request #637) 

configs/photon: Adds RGB led support

Approved-by: Gregory Nutt <gnutt@nuttx.org>
This commit is contained in:
Anthony Merlino 2018-05-02 22:39:18 +00:00 committed by Gregory Nutt
parent b1275abd4b
commit cabb529c48
6 changed files with 374 additions and 0 deletions
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20
configs/photon/include/board.h
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@ -204,6 +204,26 @@
* 2Hz, then a fatal error has been detected and the system has halted.
*/
/* TIM */
#define GPIO_TIM2_CH2OUT GPIO_TIM2_CH2OUT_1
#define GPIO_TIM2_CH3OUT GPIO_TIM2_CH3OUT_1
#define GPIO_TIM2_CH4OUT GPIO_TIM2_CH4OUT_1
/* RGB LED
*
* R = TIM2 CH2 on PA1 | G = TIM2 CH3 on PA2 | B = TIM4 CH4 on PA3
*
* Note: Pin configs: GPIO_TIM2_CH2OUT ; GPIO_TIM2_CH3OUT ; GPIO_TIM2_CH4OUT
*/
#define RGBLED_RPWMTIMER 2
#define RGBLED_RPWMCHANNEL 2
#define RGBLED_GPWMTIMER 2
#define RGBLED_GPWMCHANNEL 3
#define RGBLED_BPWMTIMER 2
#define RGBLED_BPWMCHANNEL 4
/* Button definitions ***************************************************************/
#define BOARD_BUTTON1 0

69
configs/photon/rgbled/defconfig Normal file
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@ -0,0 +1,69 @@
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="photon"
CONFIG_ARCH_BOARD_PHOTON=y
CONFIG_ARCH_CHIP_STM32F205RG=y
CONFIG_ARCH_CHIP_STM32=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_USBDEVCTRL=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_CDCACM_CONSOLE=y
CONFIG_CDCACM=y
# CONFIG_DEV_CONSOLE is not set
CONFIG_DISABLE_POLL=y
CONFIG_EXAMPLES_NSH=y
CONFIG_EXAMPLES_RGBLED=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_HAVE_CXX=y
CONFIG_INTELHEX_BINARY=y
CONFIG_MAX_TASKS=16
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_REGIONS=2
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NSH_ARCHINIT=y
# CONFIG_NSH_ARGCAT is not set
CONFIG_NSH_BUILTIN_APPS=y
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PHOTON_DFU_BOOTLOADER=y
CONFIG_PHOTON_IWDG=y
CONFIG_PHOTON_WDG_THREAD=y
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_PREALLOC_TIMERS=4
CONFIG_PREALLOC_WDOGS=16
CONFIG_PWM_MULTICHAN=y
CONFIG_PWM_NCHANNELS=4
CONFIG_PWM=y
CONFIG_RAMLOG_BUFSIZE=8192
CONFIG_RAMLOG_SYSLOG=y
CONFIG_RAMLOG=y
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RAW_BINARY=y
CONFIG_RGBLED=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_STM32_IWDG=y
CONFIG_STM32_JTAG_SW_ENABLE=y
CONFIG_STM32_OTGHS=y
CONFIG_STM32_PWM_MULTICHAN=y
CONFIG_STM32_TIM2_CH2OUT=y
CONFIG_STM32_TIM2_CH3OUT=y
CONFIG_STM32_TIM2_CH4OUT=y
CONFIG_STM32_TIM2_CHANNEL2=y
CONFIG_STM32_TIM2_CHANNEL3=y
CONFIG_STM32_TIM2_CHANNEL4=y
CONFIG_STM32_TIM2_PWM=y
CONFIG_STM32_TIM2=y
CONFIG_STM32_USART1=y
CONFIG_USBDEV=y
CONFIG_USER_ENTRYPOINT="nsh_main"

4
configs/photon/src/Makefile
View File

@ -68,4 +68,8 @@ ifeq ($(CONFIG_STM32_OTGHS),y)
CSRCS += stm32_usb.c
endif
ifeq ($(CONFIG_RGBLED),y)
CSRCS += stm32_rgbled.c
endif
include $(TOPDIR)/configs/Board.mk

20
configs/photon/src/photon.h
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@ -132,6 +132,26 @@ void weak_function stm32_spidev_initialize(void);
int photon_watchdog_initialize(void);
#endif
/****************************************************************************
* 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: photon_wlan_initialize
*

10
configs/photon/src/stm32_bringup.c
View File

@ -132,6 +132,16 @@ 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_PHOTON_WLAN
/* Initialize wlan driver and hardware */

251
configs/photon/src/stm32_rgbled.c Normal file
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@ -0,0 +1,251 @@
/************************************************************************************
* configs/photon/src/stm32_rgbled.c
*
* Copyright (C) 2018 Verge Inc. All rights reserved.
* Author: Anthony Merlino <anthony@vergeaero.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 "photon.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
#define HAVE_RGBLED 1
#ifndef CONFIG_PWM
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM2
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_PWM_MULTICHAN
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM2_PWM
# undef HAVE_RGBLED
#endif
#ifndef CONFIG_STM32_TIM2_CHANNEL2
# undef HAVE_PWM
#endif
#ifndef CONFIG_STM32_TIM2_CHANNEL3
# undef HAVE_PWM
#endif
#ifndef CONFIG_STM32_TIM2_CHANNEL4
# 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 i;
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;
}
ledr->ops->setup(ledr);
/* 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;
}
ledg->ops->setup(ledg);
/* 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;
}
ledb->ops->setup(ledb);
/* Define frequency and duty cycle */
info.frequency = 100;
#ifdef CONFIG_PWM_MULTICHAN
/* Setup the duty cycle and channel for red */
i = 0;
info.channels[i].duty = 0;
info.channels[i++].channel = RGBLED_RPWMCHANNEL;
/* If red and green use same timer, setup together */
if (RGBLED_RPWMTIMER == RGBLED_GPWMTIMER)
{
info.channels[i++].channel = RGBLED_GPWMCHANNEL;
}
/* If red and blue use same timer, setup together */
if (RGBLED_RPWMTIMER == RGBLED_BPWMTIMER)
{
info.channels[i++].channel = RGBLED_BPWMCHANNEL;
}
/* Start the timer used for red, and any other colors that are
* sourced on a different channel of the same timer */
ledr->ops->start(ledr, &info);
/* Clear the channels from the struct */
for (i = 0; i < CONFIG_PWM_NCHANNELS; i++)
{
info.channels[i].channel = 0;
}
/* If the green timer is not the same as the red timer, then set it up. */
if (RGBLED_GPWMTIMER != RGBLED_RPWMTIMER)
{
i = 0;
info.channels[i++].channel = RGBLED_GPWMCHANNEL;
/* If the blue timer uses the same timer and the green */
if (RGBLED_GPWMTIMER == RGBLED_BPWMTIMER)
{
info.channels[i++].channel = RGBLED_BPWMCHANNEL;
}
/* Start green timer (and maybe blue) */
ledg->ops->start(ledg, &info);
/* Clear the channels from the struct */
for (i = 0; i < CONFIG_PWM_NCHANNELS; i++)
{
info.channels[i].channel = 0;
}
}
/* If the blue timer is different than the red and the green, it must be setup seperately */
if (RGBLED_BPWMTIMER != RGBLED_RPWMTIMER && RGBLED_BPWMTIMER != RGBLED_GPWMTIMER)
{
info.channels[0].channel = RGBLED_BPWMCHANNEL;
ledb->ops->start(ledb, &info);
}
#else
info.duty = 0;
ledr->ops->start(ledr, &info);
ledg->ops->start(ledg, &info);
ledb->ops->start(ledb, &info);
#endif
/* Register the RGB LED diver at "/dev/rgbled0" */
#ifdef CONFIG_PWM_MULTICHAN
ret = rgbled_register("/dev/rgbled0", ledr, ledg, ledb, RGBLED_RPWMCHANNEL, RGBLED_GPWMCHANNEL, RGBLED_BPWMCHANNEL);
#else
ret = rgbled_register("/dev/rgbled0", ledr, ledg, ledb);
#endif
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 */