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samples: Adapt Pinetime sample program

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Adopt latest Zephyr syntax
Improve project configuration
Improve sample code

Signed-off-by: Stephane Dorre <stephane.dorre@gmail.com>
This commit is contained in:
Stephane Dorre 2020-11-10 09:48:39 +01:00 • committed by Carles Cufí
commit 83b77bd52c
3 changed files with 86 additions and 24 deletions
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8
samples/boards/pine64_pinetime/CMakeLists.txt
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@ -1,9 +1,7 @@
# Boilerplate code, which pulls in the Zephyr build system.
# SPDX-License-Identifier: Apache-2.0
cmake_minimum_required(VERSION 3.13.1)
include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(sample_pinetime_app)
# Add your source file to the "app" target. This must come after
# the boilerplate code, which defines the target.
target_sources(app PRIVATE src/main.c)

13
samples/boards/pine64_pinetime/prj.conf
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@ -0,0 +1,13 @@
# enable GPIO
CONFIG_GPIO=y
# Enable RTT
CONFIG_USE_SEGGER_RTT=y
# enable console
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n
# Print a banner on startup.
CONFIG_BOOT_BANNER=y

89
samples/boards/pine64_pinetime/src/main.c
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@ -1,32 +1,83 @@
/*
* Copyright (c) 2020 Stephane Dorre <stephane.dorre@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <sys/printk.h>
#include <zephyr.h>
#include <drivers/gpio.h>
#define LED_PORT DT_ALIAS_STATUS_LED_GPIOS_CONTROLLER
#define LED_PIN DT_ALIAS_STATUS_LED_GPIOS_PIN
static void button_pressed(struct device *dev,
struct gpio_callback *cb, u32_t pins)
{
printk("Button pressed at %" PRIu32 "\n", k_cycle_get_32());
}
#define BTN_PORT DT_ALIAS_KEY_IN_GPIOS_CONTROLLER
#define BTN_PIN DT_ALIAS_KEY_IN_GPIOS_PIN
static struct gpio_callback button_cb;
int main(void)
{
struct device *dev_led = device_get_binding(LED_PORT);
gpio_pin_configure(dev_led, LED_PIN, GPIO_DIR_OUT);
int ret = 0;
struct device *dev_gpio = NULL;
struct device *dev_btn = device_get_binding(BTN_PORT);
gpio_pin_configure(dev_btn, BTN_PIN, GPIO_DIR_IN);
/* Only one GPIO peripheral in nRF52832 */
/* So let's take the same for led AND button */
dev_gpio = device_get_binding(DT_GPIO_LABEL(DT_ALIAS(led0), gpios));
if (!dev_gpio) {
return (-EOPNOTSUPP);
}
while (1)
{
// button is pressed ==> turn on status LED
u32_t val = 0U;
gpio_pin_read(dev_btn, BTN_PIN, &val);
gpio_pin_write(dev_led, LED_PIN, val);
ret = gpio_pin_configure(dev_gpio, DT_GPIO_PIN(DT_ALIAS(led0), gpios),
GPIO_OUTPUT |
DT_GPIO_FLAGS(DT_ALIAS(led0), gpios));
if (ret != 0) {
printk("Error %d: failed to configure pin %d '%s'\n",
ret, DT_GPIO_PIN(DT_ALIAS(led0), gpios), DT_LABEL(DT_ALIAS(led0)));
return ret;
}
// dont burn the CPU
k_sleep(10);
}
ret = gpio_pin_configure(dev_gpio, DT_GPIO_PIN(DT_ALIAS(sw0), gpios),
GPIO_INPUT | GPIO_INT_EDGE_TO_ACTIVE |
DT_GPIO_FLAGS(DT_ALIAS(sw0), gpios));
if (ret != 0) {
printk("Error %d: failed to configure pin %d '%s'\n",
ret, DT_GPIO_PIN(DT_ALIAS(sw0), gpios), DT_LABEL(DT_ALIAS(sw0)));
return ret;
}
return 0;
gpio_init_callback(&button_cb, button_pressed,
BIT(DT_GPIO_PIN(DT_ALIAS(sw0), gpios)));
gpio_add_callback(dev_gpio, &button_cb);
/* Pinetime trick : Enable button */
ret = gpio_pin_configure(dev_gpio, DT_GPIO_PIN(DT_ALIAS(sw1), gpios),
GPIO_OUTPUT_ACTIVE |
DT_GPIO_FLAGS(DT_ALIAS(sw1), gpios));
if (ret != 0) {
printk("Error %d: failed to configure pin %d '%s'\n",
ret, DT_GPIO_PIN(DT_ALIAS(sw1), gpios), DT_LABEL(DT_ALIAS(sw1)));
return ret;
}
printk("Init Done.");
while (1) {
/* button is pressed ==> turn on status LED */
u32_t val = 0u;
u8_t new_val = 0u;
new_val = gpio_pin_get(dev_gpio, DT_GPIO_PIN(DT_ALIAS(sw0), gpios));
if (new_val != val) {
printk("New Button state %d.\n", new_val);
gpio_pin_toggle(dev_gpio, DT_GPIO_PIN(DT_ALIAS(led0), gpios));
val = new_val;
}
/* dont burn the CPU */
k_sleep(K_MSEC(10));
}
return 0;
}