d318da1db9
commit ddf744deee ("drivers: pwm_nrfx: Use Device Tree label as
instance name") removed the config setting for PWM names and replaced
it with DT_NORDIC_NRF_PWM_PWM_*_LABEL.
This change is causing the blink_led and fade_led samples to break
when compiled for nRF52 boards.
Let's update the samples to use the DT setting.
Signed-off-by: Michael Scott <mike@foundries.io>
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file Sample app to demonstrate PWM.
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*
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* This app uses PWM[0].
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*/
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#include <zephyr.h>
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#include <misc/printk.h>
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#include <device.h>
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#include <pwm.h>
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#if defined(CONFIG_SOC_STM32F401XE) || defined(CONFIG_SOC_STM32L476XG)
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#define PWM_DRIVER DT_PWM_STM32_2_DEV_NAME
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#define PWM_CHANNEL 1
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#elif CONFIG_SOC_STM32F103XB
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#define PWM_DRIVER DT_PWM_STM32_1_DEV_NAME
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#define PWM_CHANNEL 1
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#elif defined(CONFIG_SOC_QUARK_SE_C1000) || defined(CONFIG_SOC_QUARK_D2000)
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#define PWM_DRIVER CONFIG_PWM_QMSI_DEV_NAME
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#define PWM_CHANNEL 0
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#elif defined(CONFIG_SOC_FAMILY_NRF)
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#if defined(CONFIG_PWM_NRF5_SW)
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#define PWM_DRIVER CONFIG_PWM_NRF5_SW_0_DEV_NAME
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#else
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#define PWM_DRIVER DT_NORDIC_NRF_PWM_PWM_0_LABEL
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#endif /* CONFIG_PWM_NRF5_SW */
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#define PWM_CHANNEL LED0_GPIO_PIN
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#elif defined(CONFIG_SOC_ESP32)
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#define PWM_DRIVER CONFIG_PWM_LED_ESP32_DEV_NAME_0
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#define PWM_CHANNEL 21
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#elif defined(PWM_LED0_PWM_CONTROLLER) && defined(PWM_LED0_PWM_CHANNEL)
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/* get the defines from dt (based on alias 'pwm-led0') */
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#define PWM_DRIVER PWM_LED0_PWM_CONTROLLER
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#define PWM_CHANNEL PWM_LED0_PWM_CHANNEL
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#elif defined(CONFIG_BOARD_HIFIVE1)
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/* Blink the blue channel of the RGB LED */
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#define PWM_DRIVER LED1_PWM_CONTROLLER
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#define PWM_CHANNEL LED1_PWM_CHANNEL
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#else
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#error "Choose supported PWM driver"
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#endif
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/*
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* 50 is flicker fusion threshold. Modulated light will be perceived
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* as steady by our eyes when blinking rate is at least 50.
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*/
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#define PERIOD (USEC_PER_SEC / 50)
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/* in micro second */
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#define FADESTEP 2000
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void main(void)
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{
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struct device *pwm_dev;
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u32_t pulse_width = 0U;
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u8_t dir = 0U;
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printk("PWM demo app-fade LED\n");
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pwm_dev = device_get_binding(PWM_DRIVER);
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if (!pwm_dev) {
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printk("Cannot find %s!\n", PWM_DRIVER);
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return;
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}
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while (1) {
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if (pwm_pin_set_usec(pwm_dev, PWM_CHANNEL,
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PERIOD, pulse_width)) {
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printk("pwm pin set fails\n");
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return;
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}
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if (dir) {
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if (pulse_width < FADESTEP) {
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dir = 0U;
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pulse_width = 0U;
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} else {
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pulse_width -= FADESTEP;
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}
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} else {
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pulse_width += FADESTEP;
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if (pulse_width >= PERIOD) {
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dir = 1U;
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pulse_width = PERIOD;
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}
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}
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k_sleep(MSEC_PER_SEC);
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}
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}
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