blob: bfc608dc82970b4c80ee5e45e13ac1e5c155b197 [file] [log] [blame]
/* microbit.c - BBC micro:bit specific hooks */
/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/drivers/gpio.h>
#include <soc.h>
#include <zephyr/sys/printk.h>
#include <ctype.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/pwm.h>
#include <zephyr/display/mb_display.h>
#include <zephyr/bluetooth/mesh.h>
#include "board.h"
#define SCROLL_SPEED 300
#define BUZZER_PWM_CHANNEL 0
#define BEEP_DURATION K_MSEC(60)
#define SEQ_PER_BIT 976
#define SEQ_PAGE (NRF_FICR->CODEPAGESIZE * (NRF_FICR->CODESIZE - 1))
#define SEQ_MAX (NRF_FICR->CODEPAGESIZE * 8 * SEQ_PER_BIT)
static const struct gpio_dt_spec button_a =
GPIO_DT_SPEC_GET(DT_NODELABEL(buttona), gpios);
static const struct gpio_dt_spec button_b =
GPIO_DT_SPEC_GET(DT_NODELABEL(buttonb), gpios);
static const struct device *const nvm =
DEVICE_DT_GET(DT_CHOSEN(zephyr_flash_controller));
static const struct device *const pwm =
DEVICE_DT_GET_ANY(nordic_nrf_sw_pwm);
static struct k_work button_work;
static void button_send_pressed(struct k_work *work)
{
printk("button_send_pressed()\n");
board_button_1_pressed();
}
static void button_pressed(const struct device *dev, struct gpio_callback *cb,
uint32_t pins)
{
struct mb_display *disp = mb_display_get();
if (pins & BIT(button_a.pin)) {
k_work_submit(&button_work);
} else {
uint16_t target = board_set_target();
if (target > 0x0009) {
mb_display_print(disp, MB_DISPLAY_MODE_SINGLE,
2 * MSEC_PER_SEC, "A");
} else {
mb_display_print(disp, MB_DISPLAY_MODE_SINGLE,
2 * MSEC_PER_SEC, "%X", (target & 0xf));
}
}
}
static const struct {
char note;
uint32_t period;
uint32_t sharp;
} period_map[] = {
{ 'C', 3822, 3608 },
{ 'D', 3405, 3214 },
{ 'E', 3034, 3034 },
{ 'F', 2863, 2703 },
{ 'G', 2551, 2407 },
{ 'A', 2273, 2145 },
{ 'B', 2025, 2025 },
};
static uint32_t get_period(char note, bool sharp)
{
int i;
if (note == ' ') {
return 0;
}
for (i = 0; i < ARRAY_SIZE(period_map); i++) {
if (period_map[i].note != note) {
continue;
}
if (sharp) {
return period_map[i].sharp;
} else {
return period_map[i].period;
}
}
return 1500;
}
void board_play_tune(const char *str)
{
while (*str) {
uint32_t period, duration = 0U;
while (*str && isdigit((unsigned char)*str) == 0) {
str++;
}
while (isdigit((unsigned char)*str) != 0) {
duration *= 10U;
duration += *str - '0';
str++;
}
if (!*str) {
break;
}
if (str[1] == '#') {
period = get_period(*str, true);
str += 2;
} else {
period = get_period(*str, false);
str++;
}
if (period) {
pwm_set(pwm, BUZZER_PWM_CHANNEL, PWM_USEC(period),
PWM_USEC(period) / 2U, 0);
}
k_sleep(K_MSEC(duration));
/* Disable the PWM */
pwm_set(pwm, BUZZER_PWM_CHANNEL, 0, 0, 0);
}
}
void board_heartbeat(uint8_t hops, uint16_t feat)
{
struct mb_display *disp = mb_display_get();
const struct mb_image hops_img[] = {
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 }),
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 0, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 }),
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 1, 1, 1, 1 }),
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 1, 1, 1, 1 }),
MB_IMAGE({ 1, 0, 1, 0, 1 },
{ 0, 0, 0, 0, 0 },
{ 1, 0, 0, 0, 1 },
{ 0, 0, 0, 0, 0 },
{ 1, 0, 1, 0, 1 })
};
printk("%u hops\n", hops);
if (hops) {
hops = MIN(hops, ARRAY_SIZE(hops_img));
mb_display_image(disp, MB_DISPLAY_MODE_SINGLE, 2 * MSEC_PER_SEC,
&hops_img[hops - 1], 1);
}
}
void board_other_dev_pressed(uint16_t addr)
{
struct mb_display *disp = mb_display_get();
printk("board_other_dev_pressed(0x%04x)\n", addr);
mb_display_print(disp, MB_DISPLAY_MODE_SINGLE, 2 * MSEC_PER_SEC, "%X",
(addr & 0xf));
}
void board_attention(bool attention)
{
struct mb_display *disp = mb_display_get();
static const struct mb_image attn_img[] = {
MB_IMAGE({ 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0 },
{ 0, 0, 1, 0, 0 },
{ 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0 }),
MB_IMAGE({ 0, 0, 0, 0, 0 },
{ 0, 1, 1, 1, 0 },
{ 0, 1, 1, 1, 0 },
{ 0, 1, 1, 1, 0 },
{ 0, 0, 0, 0, 0 }),
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 0, 1, 1 },
{ 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1 }),
MB_IMAGE({ 1, 1, 1, 1, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 0, 0, 0, 1 },
{ 1, 1, 1, 1, 1 }),
};
if (attention) {
mb_display_image(disp,
MB_DISPLAY_MODE_DEFAULT | MB_DISPLAY_FLAG_LOOP,
150, attn_img, ARRAY_SIZE(attn_img));
} else {
mb_display_stop(disp);
}
}
static int configure_button(const struct gpio_dt_spec *button)
{
int err;
err = gpio_pin_configure_dt(button, GPIO_INPUT);
if (err) {
return err;
}
return gpio_pin_interrupt_configure_dt(button, GPIO_INT_EDGE_TO_ACTIVE);
}
static int configure_buttons(void)
{
static struct gpio_callback button_cb;
int err;
k_work_init(&button_work, button_send_pressed);
err = configure_button(&button_a);
if (err) {
return err;
}
err = configure_button(&button_b);
if (err) {
return err;
}
if (button_a.port != button_b.port) {
/* These should be the same device on this board. */
return -EINVAL;
}
gpio_init_callback(&button_cb, button_pressed,
BIT(button_a.pin) | BIT(button_b.pin));
return gpio_add_callback(button_a.port, &button_cb);
}
int board_init(uint16_t *addr)
{
struct mb_display *disp = mb_display_get();
if (!(device_is_ready(nvm) && device_is_ready(pwm) &&
gpio_is_ready_dt(&button_a) &&
gpio_is_ready_dt(&button_b))) {
printk("One or more devices are not ready\n");
return -ENODEV;
}
*addr = NRF_UICR->CUSTOMER[0];
if (!*addr || *addr == 0xffff) {
#if defined(NODE_ADDR)
*addr = NODE_ADDR;
#else
*addr = 0x0b0c;
#endif
}
mb_display_print(disp, MB_DISPLAY_MODE_DEFAULT, SCROLL_SPEED,
"0x%04x", *addr);
return configure_buttons();
}