diff --git a/configs/stm32f103-minimum/include/board.h b/configs/stm32f103-minimum/include/board.h index 1dc84378c78..321d5b40fba 100644 --- a/configs/stm32f103-minimum/include/board.h +++ b/configs/stm32f103-minimum/include/board.h @@ -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 ************************************************************************************/ diff --git a/configs/stm32f103-minimum/src/Makefile b/configs/stm32f103-minimum/src/Makefile index 3259d5ab127..3baf4b64dc5 100644 --- a/configs/stm32f103-minimum/src/Makefile +++ b/configs/stm32f103-minimum/src/Makefile @@ -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 diff --git a/configs/stm32f103-minimum/src/stm32_bringup.c b/configs/stm32f103-minimum/src/stm32_bringup.c index fac7292c581..7c81c59c071 100644 --- a/configs/stm32f103-minimum/src/stm32_bringup.c +++ b/configs/stm32f103-minimum/src/stm32_bringup.c @@ -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) diff --git a/configs/stm32f103-minimum/src/stm32_rgbled.c b/configs/stm32f103-minimum/src/stm32_rgbled.c new file mode 100644 index 00000000000..21b7a0b78c9 --- /dev/null +++ b/configs/stm32f103-minimum/src/stm32_rgbled.c @@ -0,0 +1,194 @@ +/************************************************************************************ + * configs/stm32f4discovery/src/stm32_rgbled.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Alan Carvalho de Assis + * + * 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 + +#include +#include + +#include +#include +#include + +#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 */ diff --git a/configs/stm32f103-minimum/src/stm32f103_minimum.h b/configs/stm32f103-minimum/src/stm32f103_minimum.h index 7b0ae802216..b3d4ff0a919 100644 --- a/configs/stm32f103-minimum/src/stm32f103_minimum.h +++ b/configs/stm32f103-minimum/src/stm32f103_minimum.h @@ -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 *