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Merge remote-tracking branch 'upstream/main' into bluetooth/battery-reporting

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This commit is contained in:
Nick
2020-09-19 19:15:05 -05:00
parent 844f2c7674 c0806d27f1
commit da0fb965f6
132 changed files with 3192 additions and 2651 deletions
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195
app/drivers/zephyr/ec11.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020 Peter Johanson
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@@ -18,136 +18,131 @@
LOG_MODULE_REGISTER(EC11, CONFIG_SENSOR_LOG_LEVEL);
static int ec11_get_ab_state(struct device *dev)
{
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
static int ec11_get_ab_state(struct device *dev) {
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
return (gpio_pin_get(drv_data->a, drv_cfg->a_pin) << 1) | gpio_pin_get(drv_data->b, drv_cfg->b_pin);
return (gpio_pin_get(drv_data->a, drv_cfg->a_pin) << 1) |
gpio_pin_get(drv_data->b, drv_cfg->b_pin);
}
static int ec11_sample_fetch(struct device *dev, enum sensor_channel chan)
{
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
u8_t val;
s8_t delta;
static int ec11_sample_fetch(struct device *dev, enum sensor_channel chan) {
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
u8_t val;
s8_t delta;
__ASSERT_NO_MSG(chan == SENSOR_CHAN_ALL || chan == SENSOR_CHAN_ROTATION);
__ASSERT_NO_MSG(chan == SENSOR_CHAN_ALL || chan == SENSOR_CHAN_ROTATION);
val = ec11_get_ab_state(dev);
val = ec11_get_ab_state(dev);
LOG_DBG("prev: %d, new: %d", drv_data->ab_state, val);
LOG_DBG("prev: %d, new: %d", drv_data->ab_state, val);
switch(val | (drv_data->ab_state << 2)) {
case 0b0010: case 0b0100: case 0b1101: case 0b1011:
delta = -1;
break;
case 0b0001: case 0b0111: case 0b1110: case 0b1000:
delta = 1;
break;
default:
delta = 0;
break;
}
switch (val | (drv_data->ab_state << 2)) {
case 0b0010:
case 0b0100:
case 0b1101:
case 0b1011:
delta = -1;
break;
case 0b0001:
case 0b0111:
case 0b1110:
case 0b1000:
delta = 1;
break;
default:
delta = 0;
break;
}
LOG_DBG("Delta: %d", delta);
LOG_DBG("Delta: %d", delta);
drv_data->pulses += delta;
drv_data->ab_state = val;
drv_data->pulses += delta;
drv_data->ab_state = val;
drv_data->ticks = drv_data->pulses / drv_cfg->resolution;
drv_data->delta = delta;
drv_data->pulses %= drv_cfg->resolution;
return 0;
drv_data->ticks = drv_data->pulses / drv_cfg->resolution;
drv_data->delta = delta;
drv_data->pulses %= drv_cfg->resolution;
return 0;
}
static int ec11_channel_get(struct device *dev,
enum sensor_channel chan,
struct sensor_value *val)
{
struct ec11_data *drv_data = dev->driver_data;
if (chan != SENSOR_CHAN_ROTATION) {
return -ENOTSUP;
}
static int ec11_channel_get(struct device *dev, enum sensor_channel chan,
struct sensor_value *val) {
struct ec11_data *drv_data = dev->driver_data;
val->val1 = drv_data->ticks;
val->val2 = drv_data->delta;
return 0;
if (chan != SENSOR_CHAN_ROTATION) {
return -ENOTSUP;
}
val->val1 = drv_data->ticks;
val->val2 = drv_data->delta;
return 0;
}
static const struct sensor_driver_api ec11_driver_api = {
#ifdef CONFIG_EC11_TRIGGER
.trigger_set = ec11_trigger_set,
.trigger_set = ec11_trigger_set,
#endif
.sample_fetch = ec11_sample_fetch,
.channel_get = ec11_channel_get,
.sample_fetch = ec11_sample_fetch,
.channel_get = ec11_channel_get,
};
int ec11_init(struct device *dev)
{
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
int ec11_init(struct device *dev) {
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
LOG_DBG("A: %s %d B: %s %d resolution %d", drv_cfg->a_label, drv_cfg->a_pin, drv_cfg->b_label, drv_cfg->b_pin, drv_cfg->resolution);
LOG_DBG("A: %s %d B: %s %d resolution %d", drv_cfg->a_label, drv_cfg->a_pin, drv_cfg->b_label,
drv_cfg->b_pin, drv_cfg->resolution);
drv_data->a = device_get_binding(drv_cfg->a_label);
if (drv_data->a == NULL) {
LOG_ERR("Failed to get pointer to A GPIO device");
return -EINVAL;
}
drv_data->a = device_get_binding(drv_cfg->a_label);
if (drv_data->a == NULL) {
LOG_ERR("Failed to get pointer to A GPIO device");
return -EINVAL;
}
drv_data->b = device_get_binding(drv_cfg->b_label);
if (drv_data->b == NULL) {
LOG_ERR("Failed to get pointer to B GPIO device");
return -EINVAL;
}
if (gpio_pin_configure(drv_data->a, drv_cfg->a_pin,
drv_cfg->a_flags
| GPIO_INPUT)) {
LOG_DBG("Failed to configure A pin");
return -EIO;
}
if (gpio_pin_configure(drv_data->b, drv_cfg->b_pin,
drv_cfg->b_flags
| GPIO_INPUT)) {
LOG_DBG("Failed to configure B pin");
return -EIO;
}
drv_data->b = device_get_binding(drv_cfg->b_label);
if (drv_data->b == NULL) {
LOG_ERR("Failed to get pointer to B GPIO device");
return -EINVAL;
}
if (gpio_pin_configure(drv_data->a, drv_cfg->a_pin, drv_cfg->a_flags | GPIO_INPUT)) {
LOG_DBG("Failed to configure A pin");
return -EIO;
}
if (gpio_pin_configure(drv_data->b, drv_cfg->b_pin, drv_cfg->b_flags | GPIO_INPUT)) {
LOG_DBG("Failed to configure B pin");
return -EIO;
}
#ifdef CONFIG_EC11_TRIGGER
if (ec11_init_interrupt(dev) < 0) {
LOG_DBG("Failed to initialize interrupt!");
return -EIO;
}
if (ec11_init_interrupt(dev) < 0) {
LOG_DBG("Failed to initialize interrupt!");
return -EIO;
}
#endif
drv_data->ab_state = ec11_get_ab_state(dev);
drv_data->ab_state = ec11_get_ab_state(dev);
return 0;
return 0;
}
#define EC11_INST(n) \
struct ec11_data ec11_data_##n; \
const struct ec11_config ec11_cfg_##n = { \
.a_label = DT_INST_GPIO_LABEL(n, a_gpios), \
.a_pin = DT_INST_GPIO_PIN(n, a_gpios), \
.a_flags = DT_INST_GPIO_FLAGS(n, a_gpios), \
.b_label = DT_INST_GPIO_LABEL(n, b_gpios), \
.b_pin = DT_INST_GPIO_PIN(n, b_gpios), \
.b_flags = DT_INST_GPIO_FLAGS(n, b_gpios), \
COND_CODE_0(DT_INST_NODE_HAS_PROP(n, resolution), (1), (DT_INST_PROP(n, resolution))), \
}; \
DEVICE_AND_API_INIT(ec11, DT_INST_LABEL(n), ec11_init, \
&ec11_data_##n, \
&ec11_cfg_##n, POST_KERNEL, CONFIG_SENSOR_INIT_PRIORITY, \
&ec11_driver_api);
#define EC11_INST(n) \
struct ec11_data ec11_data_##n; \
const struct ec11_config ec11_cfg_##n = { \
.a_label = DT_INST_GPIO_LABEL(n, a_gpios), \
.a_pin = DT_INST_GPIO_PIN(n, a_gpios), \
.a_flags = DT_INST_GPIO_FLAGS(n, a_gpios), \
.b_label = DT_INST_GPIO_LABEL(n, b_gpios), \
.b_pin = DT_INST_GPIO_PIN(n, b_gpios), \
.b_flags = DT_INST_GPIO_FLAGS(n, b_gpios), \
COND_CODE_0(DT_INST_NODE_HAS_PROP(n, resolution), (1), (DT_INST_PROP(n, resolution))), \
}; \
DEVICE_AND_API_INIT(ec11, DT_INST_LABEL(n), ec11_init, &ec11_data_##n, &ec11_cfg_##n, \
POST_KERNEL, CONFIG_SENSOR_INIT_PRIORITY, &ec11_driver_api);
DT_INST_FOREACH_STATUS_OKAY(EC11_INST)

51
app/drivers/zephyr/ec11.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020 Peter Johanson
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@@ -11,39 +11,39 @@
#include <sys/util.h>
struct ec11_config {
const char *a_label;
const u8_t a_pin;
const u8_t a_flags;
const char *a_label;
const u8_t a_pin;
const u8_t a_flags;
const char *b_label;
const u8_t b_pin;
const u8_t b_flags;
const char *b_label;
const u8_t b_pin;
const u8_t b_flags;
const u8_t resolution;
const u8_t resolution;
};
struct ec11_data {
struct device *a;
struct device *b;
u8_t ab_state;
s8_t pulses;
s8_t ticks;
s8_t delta;
struct device *a;
struct device *b;
u8_t ab_state;
s8_t pulses;
s8_t ticks;
s8_t delta;
#ifdef CONFIG_EC11_TRIGGER
struct gpio_callback a_gpio_cb;
struct gpio_callback b_gpio_cb;
struct device *dev;
struct gpio_callback a_gpio_cb;
struct gpio_callback b_gpio_cb;
struct device *dev;
sensor_trigger_handler_t handler;
const struct sensor_trigger *trigger;
sensor_trigger_handler_t handler;
const struct sensor_trigger *trigger;
#if defined(CONFIG_EC11_TRIGGER_OWN_THREAD)
K_THREAD_STACK_MEMBER(thread_stack, CONFIG_EC11_THREAD_STACK_SIZE);
struct k_sem gpio_sem;
struct k_thread thread;
K_THREAD_STACK_MEMBER(thread_stack, CONFIG_EC11_THREAD_STACK_SIZE);
struct k_sem gpio_sem;
struct k_thread thread;
#elif defined(CONFIG_EC11_TRIGGER_GLOBAL_THREAD)
struct k_work work;
struct k_work work;
#endif
#endif /* CONFIG_EC11_TRIGGER */
@@ -51,9 +51,8 @@ struct ec11_data {
#ifdef CONFIG_EC11_TRIGGER
int ec11_trigger_set(struct device *dev,
const struct sensor_trigger *trig,
sensor_trigger_handler_t handler);
int ec11_trigger_set(struct device *dev, const struct sensor_trigger *trig,
sensor_trigger_handler_t handler);
int ec11_init_interrupt(struct device *dev);
#endif

172
app/drivers/zephyr/ec11_trigger.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2016 Intel Corporation
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@@ -19,158 +19,130 @@ extern struct ec11_data ec11_driver;
#include <logging/log.h>
LOG_MODULE_DECLARE(EC11, CONFIG_SENSOR_LOG_LEVEL);
static inline void setup_int(struct device *dev,
bool enable)
{
struct ec11_data *data = dev->driver_data;
const struct ec11_config *cfg = dev->config_info;
static inline void setup_int(struct device *dev, bool enable) {
struct ec11_data *data = dev->driver_data;
const struct ec11_config *cfg = dev->config_info;
LOG_DBG("enabled %s", (enable ? "true" : "false"));
LOG_DBG("enabled %s", (enable ? "true" : "false"));
if (gpio_pin_interrupt_configure(data->a,
cfg->a_pin,
enable
? GPIO_INT_EDGE_BOTH
: GPIO_INT_DISABLE)) {
LOG_WRN("Unable to set A pin GPIO interrupt");
}
if (gpio_pin_interrupt_configure(data->a, cfg->a_pin,
enable ? GPIO_INT_EDGE_BOTH : GPIO_INT_DISABLE)) {
LOG_WRN("Unable to set A pin GPIO interrupt");
}
if (gpio_pin_interrupt_configure(data->b,
cfg->b_pin,
enable
? GPIO_INT_EDGE_BOTH
: GPIO_INT_DISABLE)) {
LOG_WRN("Unable to set A pin GPIO interrupt");
}
if (gpio_pin_interrupt_configure(data->b, cfg->b_pin,
enable ? GPIO_INT_EDGE_BOTH : GPIO_INT_DISABLE)) {
LOG_WRN("Unable to set A pin GPIO interrupt");
}
}
static void ec11_a_gpio_callback(struct device *dev,
struct gpio_callback *cb, u32_t pins)
{
struct ec11_data *drv_data =
CONTAINER_OF(cb, struct ec11_data, a_gpio_cb);
static void ec11_a_gpio_callback(struct device *dev, struct gpio_callback *cb, u32_t pins) {
struct ec11_data *drv_data = CONTAINER_OF(cb, struct ec11_data, a_gpio_cb);
LOG_DBG("");
LOG_DBG("");
setup_int(drv_data->dev, false);
setup_int(drv_data->dev, false);
#if defined(CONFIG_EC11_TRIGGER_OWN_THREAD)
k_sem_give(&drv_data->gpio_sem);
k_sem_give(&drv_data->gpio_sem);
#elif defined(CONFIG_EC11_TRIGGER_GLOBAL_THREAD)
k_work_submit(&drv_data->work);
k_work_submit(&drv_data->work);
#endif
}
static void ec11_b_gpio_callback(struct device *dev,
struct gpio_callback *cb, u32_t pins)
{
struct ec11_data *drv_data =
CONTAINER_OF(cb, struct ec11_data, b_gpio_cb);
static void ec11_b_gpio_callback(struct device *dev, struct gpio_callback *cb, u32_t pins) {
struct ec11_data *drv_data = CONTAINER_OF(cb, struct ec11_data, b_gpio_cb);
LOG_DBG("");
LOG_DBG("");
setup_int(drv_data->dev, false);
setup_int(drv_data->dev, false);
#if defined(CONFIG_EC11_TRIGGER_OWN_THREAD)
k_sem_give(&drv_data->gpio_sem);
k_sem_give(&drv_data->gpio_sem);
#elif defined(CONFIG_EC11_TRIGGER_GLOBAL_THREAD)
k_work_submit(&drv_data->work);
k_work_submit(&drv_data->work);
#endif
}
static void ec11_thread_cb(void *arg)
{
struct device *dev = arg;
struct ec11_data *drv_data = dev->driver_data;
static void ec11_thread_cb(void *arg) {
struct device *dev = arg;
struct ec11_data *drv_data = dev->driver_data;
drv_data->handler(dev, drv_data->trigger);
drv_data->handler(dev, drv_data->trigger);
setup_int(dev, true);
setup_int(dev, true);
}
#ifdef CONFIG_EC11_TRIGGER_OWN_THREAD
static void ec11_thread(int dev_ptr, int unused)
{
struct device *dev = INT_TO_POINTER(dev_ptr);
struct ec11_data *drv_data = dev->driver_data;
static void ec11_thread(int dev_ptr, int unused) {
struct device *dev = INT_TO_POINTER(dev_ptr);
struct ec11_data *drv_data = dev->driver_data;
ARG_UNUSED(unused);
ARG_UNUSED(unused);
while (1) {
k_sem_take(&drv_data->gpio_sem, K_FOREVER);
ec11_thread_cb(dev);
}
while (1) {
k_sem_take(&drv_data->gpio_sem, K_FOREVER);
ec11_thread_cb(dev);
}
}
#endif
#ifdef CONFIG_EC11_TRIGGER_GLOBAL_THREAD
static void ec11_work_cb(struct k_work *work)
{
struct ec11_data *drv_data =
CONTAINER_OF(work, struct ec11_data, work);
static void ec11_work_cb(struct k_work *work) {
struct ec11_data *drv_data = CONTAINER_OF(work, struct ec11_data, work);
LOG_DBG("");
LOG_DBG("");
ec11_thread_cb(drv_data->dev);
ec11_thread_cb(drv_data->dev);
}
#endif
int ec11_trigger_set(struct device *dev,
const struct sensor_trigger *trig,
sensor_trigger_handler_t handler)
{
struct ec11_data *drv_data = dev->driver_data;
int ec11_trigger_set(struct device *dev, const struct sensor_trigger *trig,
sensor_trigger_handler_t handler) {
struct ec11_data *drv_data = dev->driver_data;
setup_int(dev, false);
setup_int(dev, false);
k_msleep(5);
k_msleep(5);
drv_data->trigger = trig;
drv_data->handler = handler;
drv_data->trigger = trig;
drv_data->handler = handler;
setup_int(dev, true);
setup_int(dev, true);
return 0;
return 0;
}
int ec11_init_interrupt(struct device *dev)
{
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
int ec11_init_interrupt(struct device *dev) {
struct ec11_data *drv_data = dev->driver_data;
const struct ec11_config *drv_cfg = dev->config_info;
drv_data->dev = dev;
/* setup gpio interrupt */
drv_data->dev = dev;
/* setup gpio interrupt */
gpio_init_callback(&drv_data->a_gpio_cb, ec11_a_gpio_callback, BIT(drv_cfg->a_pin));
gpio_init_callback(&drv_data->a_gpio_cb,
ec11_a_gpio_callback,
BIT(drv_cfg->a_pin));
if (gpio_add_callback(drv_data->a, &drv_data->a_gpio_cb) < 0) {
LOG_DBG("Failed to set A callback!");
return -EIO;
}
if (gpio_add_callback(drv_data->a, &drv_data->a_gpio_cb) < 0) {
LOG_DBG("Failed to set A callback!");
return -EIO;
}
gpio_init_callback(&drv_data->b_gpio_cb, ec11_b_gpio_callback, BIT(drv_cfg->b_pin));
gpio_init_callback(&drv_data->b_gpio_cb,
ec11_b_gpio_callback,
BIT(drv_cfg->b_pin));
if (gpio_add_callback(drv_data->b, &drv_data->b_gpio_cb) < 0) {
LOG_DBG("Failed to set B callback!");
return -EIO;
}
if (gpio_add_callback(drv_data->b, &drv_data->b_gpio_cb) < 0) {
LOG_DBG("Failed to set B callback!");
return -EIO;
}
#if defined(CONFIG_EC11_TRIGGER_OWN_THREAD)
k_sem_init(&drv_data->gpio_sem, 0, UINT_MAX);
k_sem_init(&drv_data->gpio_sem, 0, UINT_MAX);
k_thread_create(&drv_data->thread, drv_data->thread_stack,
CONFIG_EC11_THREAD_STACK_SIZE,
(k_thread_entry_t)ec11_thread, dev,
0, NULL, K_PRIO_COOP(CONFIG_EC11_THREAD_PRIORITY),
0, K_NO_WAIT);
k_thread_create(&drv_data->thread, drv_data->thread_stack, CONFIG_EC11_THREAD_STACK_SIZE,
(k_thread_entry_t)ec11_thread, dev, 0, NULL,
K_PRIO_COOP(CONFIG_EC11_THREAD_PRIORITY), 0, K_NO_WAIT);
#elif defined(CONFIG_EC11_TRIGGER_GLOBAL_THREAD)
k_work_init(&drv_data->work, ec11_work_cb);
k_work_init(&drv_data->work, ec11_work_cb);
#endif
return 0;
return 0;
}

353
app/drivers/zephyr/kscan_gpio_direct.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020 Peter Johanson <peter@peterjohanson.com>
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@@ -15,248 +15,215 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
struct kscan_gpio_item_config
{
char *label;
gpio_pin_t pin;
gpio_flags_t flags;
struct kscan_gpio_item_config {
char *label;
gpio_pin_t pin;
gpio_flags_t flags;
};
union work_reference {
struct k_delayed_work delayed;
struct k_work direct;
struct k_delayed_work delayed;
struct k_work direct;
};
struct kscan_gpio_config
{
u8_t num_of_inputs;
u8_t debounce_period;
struct kscan_gpio_item_config inputs[];
struct kscan_gpio_config {
u8_t num_of_inputs;
u8_t debounce_period;
struct kscan_gpio_item_config inputs[];
};
struct kscan_gpio_data
{
struct kscan_gpio_data {
#if defined(CONFIG_ZMK_KSCAN_GPIO_POLLING)
struct k_timer poll_timer;
struct k_timer poll_timer;
#endif /* defined(CONFIG_ZMK_KSCAN_GPIO_POLLING) */
kscan_callback_t callback;
union work_reference work;
struct device *dev;
u32_t pin_state;
struct device *inputs[];
kscan_callback_t callback;
union work_reference work;
struct device *dev;
u32_t pin_state;
struct device *inputs[];
};
static struct device **kscan_gpio_input_devices(struct device *dev)
{
struct kscan_gpio_data *data = dev->driver_data;
return data->inputs;
static struct device **kscan_gpio_input_devices(struct device *dev) {
struct kscan_gpio_data *data = dev->driver_data;
return data->inputs;
}
static const struct kscan_gpio_item_config *kscan_gpio_input_configs(struct device *dev)
{
const struct kscan_gpio_config *cfg = dev->config_info;
return cfg->inputs;
static const struct kscan_gpio_item_config *kscan_gpio_input_configs(struct device *dev) {
const struct kscan_gpio_config *cfg = dev->config_info;
return cfg->inputs;
}
#if !defined(CONFIG_ZMK_KSCAN_GPIO_POLLING)
struct kscan_gpio_irq_callback
{
union work_reference *work;
u8_t debounce_period;
struct gpio_callback callback;
struct kscan_gpio_irq_callback {
union work_reference *work;
u8_t debounce_period;
struct gpio_callback callback;
};
static int kscan_gpio_config_interrupts(struct device *dev, gpio_flags_t flags)
{
const struct kscan_gpio_config *cfg = dev->config_info;
struct device **devices = kscan_gpio_input_devices(dev);
const struct kscan_gpio_item_config *configs = kscan_gpio_input_configs(dev);
for (int i = 0; i < cfg->num_of_inputs; i++)
{
struct device *dev = devices[i];
const struct kscan_gpio_item_config *cfg = &configs[i];
static int kscan_gpio_config_interrupts(struct device *dev, gpio_flags_t flags) {
const struct kscan_gpio_config *cfg = dev->config_info;
struct device **devices = kscan_gpio_input_devices(dev);
const struct kscan_gpio_item_config *configs = kscan_gpio_input_configs(dev);
int err = gpio_pin_interrupt_configure(dev, cfg->pin, flags);
for (int i = 0; i < cfg->num_of_inputs; i++) {
struct device *dev = devices[i];
const struct kscan_gpio_item_config *cfg = &configs[i];
if (err)
{
LOG_ERR("Unable to enable matrix GPIO interrupt");
return err;
}
}
int err = gpio_pin_interrupt_configure(dev, cfg->pin, flags);
return 0;
if (err) {
LOG_ERR("Unable to enable matrix GPIO interrupt");
return err;
}
}
return 0;
}
static int kscan_gpio_direct_enable(struct device *dev)
{
return kscan_gpio_config_interrupts(dev,
GPIO_INT_DEBOUNCE | GPIO_INT_EDGE_BOTH);
static int kscan_gpio_direct_enable(struct device *dev) {
return kscan_gpio_config_interrupts(dev, GPIO_INT_DEBOUNCE | GPIO_INT_EDGE_BOTH);
}
static int kscan_gpio_direct_disable(struct device *dev)
{
return kscan_gpio_config_interrupts(dev,
GPIO_INT_DISABLE);
static int kscan_gpio_direct_disable(struct device *dev) {
return kscan_gpio_config_interrupts(dev, GPIO_INT_DISABLE);
}
static void kscan_gpio_irq_callback_handler(struct device *dev,
struct gpio_callback *cb, gpio_port_pins_t pin)
{
struct kscan_gpio_irq_callback *data =
CONTAINER_OF(cb, struct kscan_gpio_irq_callback, callback);
if (data->debounce_period > 0) {
k_delayed_work_cancel(&data->work->delayed);
k_delayed_work_submit(&data->work->delayed, K_MSEC(data->debounce_period));
} else {
k_work_submit(&data->work->direct);
}
static void kscan_gpio_irq_callback_handler(struct device *dev, struct gpio_callback *cb,
gpio_port_pins_t pin) {
struct kscan_gpio_irq_callback *data =
CONTAINER_OF(cb, struct kscan_gpio_irq_callback, callback);
if (data->debounce_period > 0) {
k_delayed_work_cancel(&data->work->delayed);
k_delayed_work_submit(&data->work->delayed, K_MSEC(data->debounce_period));
} else {
k_work_submit(&data->work->direct);
}
}
#else /* !defined(CONFIG_ZMK_KSCAN_GPIO_POLLING) */
#else /* !defined(CONFIG_ZMK_KSCAN_GPIO_POLLING) */
static void kscan_gpio_timer_handler(struct k_timer *timer)
{
struct kscan_gpio_data *data =
CONTAINER_OF(timer, struct kscan_gpio_data, poll_timer);
static void kscan_gpio_timer_handler(struct k_timer *timer) {
struct kscan_gpio_data *data = CONTAINER_OF(timer, struct kscan_gpio_data, poll_timer);
k_work_submit(&data->work.direct);
k_work_submit(&data->work.direct);
}
static int kscan_gpio_direct_enable(struct device *dev)
{
struct kscan_gpio_data *data = dev->driver_data;
k_timer_start(&data->poll_timer, K_MSEC(10), K_MSEC(10));
return 0;
static int kscan_gpio_direct_enable(struct device *dev) {
struct kscan_gpio_data *data = dev->driver_data;
k_timer_start(&data->poll_timer, K_MSEC(10), K_MSEC(10));
return 0;
}
static int kscan_gpio_direct_disable(struct device *dev)
{
struct kscan_gpio_data *data = dev->driver_data;
k_timer_stop(&data->poll_timer);
return 0;
static int kscan_gpio_direct_disable(struct device *dev) {
struct kscan_gpio_data *data = dev->driver_data;
k_timer_stop(&data->poll_timer);
return 0;
}
#endif /* defined(CONFIG_ZMK_KSCAN_GPIO_POLLING) */
static int kscan_gpio_direct_configure(struct device *dev, kscan_callback_t callback)
{
struct kscan_gpio_data *data = dev->driver_data;
if (!callback)
{
return -EINVAL;
}
data->callback = callback;
return 0;
static int kscan_gpio_direct_configure(struct device *dev, kscan_callback_t callback) {
struct kscan_gpio_data *data = dev->driver_data;
if (!callback) {
return -EINVAL;
}
data->callback = callback;
return 0;
}
static int kscan_gpio_read(struct device *dev)
{
struct kscan_gpio_data *data = dev->driver_data;
const struct kscan_gpio_config *cfg = dev->config_info;
u32_t read_state = data->pin_state;
for (int i = 0; i < cfg->num_of_inputs; i++)
{
struct device *in_dev = kscan_gpio_input_devices(dev)[i];
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs(dev)[i];
WRITE_BIT(read_state, i, gpio_pin_get(in_dev, in_cfg->pin) > 0);
}
for (int i = 0; i < cfg->num_of_inputs; i++)
{
bool prev_pressed = BIT(i) & data->pin_state;
bool pressed = BIT(i) & read_state;
if (pressed != prev_pressed)
{
LOG_DBG("Sending event at %d,%d state %s",
0, i, (pressed ? "on" : "off"));
WRITE_BIT(data->pin_state, i, pressed);
data->callback(dev, 0, i, pressed);
}
}
return 0;
static int kscan_gpio_read(struct device *dev) {
struct kscan_gpio_data *data = dev->driver_data;
const struct kscan_gpio_config *cfg = dev->config_info;
u32_t read_state = data->pin_state;
for (int i = 0; i < cfg->num_of_inputs; i++) {
struct device *in_dev = kscan_gpio_input_devices(dev)[i];
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs(dev)[i];
WRITE_BIT(read_state, i, gpio_pin_get(in_dev, in_cfg->pin) > 0);
}
for (int i = 0; i < cfg->num_of_inputs; i++) {
bool prev_pressed = BIT(i) & data->pin_state;
bool pressed = BIT(i) & read_state;
if (pressed != prev_pressed) {
LOG_DBG("Sending event at %d,%d state %s", 0, i, (pressed ? "on" : "off"));
WRITE_BIT(data->pin_state, i, pressed);
data->callback(dev, 0, i, pressed);
}
}
return 0;
}
static void kscan_gpio_work_handler(struct k_work *work)
{
struct kscan_gpio_data *data =
CONTAINER_OF(work, struct kscan_gpio_data, work);
kscan_gpio_read(data->dev);
static void kscan_gpio_work_handler(struct k_work *work) {
struct kscan_gpio_data *data = CONTAINER_OF(work, struct kscan_gpio_data, work);
kscan_gpio_read(data->dev);
}
static const struct kscan_driver_api gpio_driver_api = {
.config = kscan_gpio_direct_configure,
.enable_callback = kscan_gpio_direct_enable,
.disable_callback = kscan_gpio_direct_disable,
.config = kscan_gpio_direct_configure,
.enable_callback = kscan_gpio_direct_enable,
.disable_callback = kscan_gpio_direct_disable,
};
#define KSCAN_DIRECT_INPUT_ITEM(i,n) \
{ \
.label = DT_INST_GPIO_LABEL_BY_IDX(n, input_gpios, i), \
.pin = DT_INST_GPIO_PIN_BY_IDX(n, input_gpios, i), \
.flags = DT_INST_GPIO_FLAGS_BY_IDX(n, input_gpios, i), \
},
#define KSCAN_DIRECT_INPUT_ITEM(i, n) \
{ \
.label = DT_INST_GPIO_LABEL_BY_IDX(n, input_gpios, i), \
.pin = DT_INST_GPIO_PIN_BY_IDX(n, input_gpios, i), \
.flags = DT_INST_GPIO_FLAGS_BY_IDX(n, input_gpios, i), \
},
#define INST_INPUT_LEN(n) DT_INST_PROP_LEN(n, input_gpios)
#define GPIO_INST_INIT(n) \
COND_CODE_0(CONFIG_ZMK_KSCAN_GPIO_POLLING, (static struct kscan_gpio_irq_callback \
irq_callbacks_##n[INST_INPUT_LEN(n)];), ()) \
static struct kscan_gpio_data kscan_gpio_data_##n = { \
.inputs = { [INST_INPUT_LEN(n)-1] = NULL } \
}; \
static int kscan_gpio_init_##n(struct device *dev) \
{ \
struct kscan_gpio_data *data = dev->driver_data; \
const struct kscan_gpio_config *cfg = dev->config_info; \
int err; \
struct device **input_devices = kscan_gpio_input_devices(dev); \
for (int i = 0; i < cfg->num_of_inputs; i++) \
{ \
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs(dev)[i]; \
input_devices[i] = device_get_binding(in_cfg->label); \
if (!input_devices[i]) \
{ \
LOG_ERR("Unable to find input GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(input_devices[i], in_cfg->pin, GPIO_INPUT | in_cfg->flags); \
if (err) \
{ \
LOG_ERR("Unable to configure pin %d on %s for input", in_cfg->pin, in_cfg->label); \
return err; \
} \
COND_CODE_0(CONFIG_ZMK_KSCAN_GPIO_POLLING, \
( \
irq_callbacks_##n[i].work = &data->work; \
irq_callbacks_##n[i].debounce_period = cfg->debounce_period; \
gpio_init_callback(&irq_callbacks_##n[i].callback, kscan_gpio_irq_callback_handler, BIT(in_cfg->pin)); \
err = gpio_add_callback(input_devices[i], &irq_callbacks_##n[i].callback); \
if (err) \
{ \
LOG_ERR("Error adding the callback to the column device"); \
return err; \
} \
), ()) \
} \
data->dev = dev; \
COND_CODE_1(CONFIG_ZMK_KSCAN_GPIO_POLLING, (k_timer_init(&data->poll_timer, kscan_gpio_timer_handler, NULL);), ( )) \
if (cfg->debounce_period > 0) { \
k_delayed_work_init(&data->work.delayed, kscan_gpio_work_handler); \
} else { \
k_work_init(&data->work.direct, kscan_gpio_work_handler); \
} \
return 0; \
} \
static const struct kscan_gpio_config kscan_gpio_config_##n = { \
.inputs = { UTIL_LISTIFY(INST_INPUT_LEN(n), KSCAN_DIRECT_INPUT_ITEM, n) }, \
.num_of_inputs = INST_INPUT_LEN(n), \
.debounce_period = DT_INST_PROP(n, debounce_period) \
}; \
DEVICE_AND_API_INIT(kscan_gpio_##n, DT_INST_LABEL(n), kscan_gpio_init_##n, \
&kscan_gpio_data_##n, &kscan_gpio_config_##n, \
POST_KERNEL, CONFIG_ZMK_KSCAN_INIT_PRIORITY, \
&gpio_driver_api);
#define GPIO_INST_INIT(n) \
COND_CODE_0(CONFIG_ZMK_KSCAN_GPIO_POLLING, \
(static struct kscan_gpio_irq_callback irq_callbacks_##n[INST_INPUT_LEN(n)];), ()) \
static struct kscan_gpio_data kscan_gpio_data_##n = { \
.inputs = {[INST_INPUT_LEN(n) - 1] = NULL}}; \
static int kscan_gpio_init_##n(struct device *dev) { \
struct kscan_gpio_data *data = dev->driver_data; \
const struct kscan_gpio_config *cfg = dev->config_info; \
int err; \
struct device **input_devices = kscan_gpio_input_devices(dev); \
for (int i = 0; i < cfg->num_of_inputs; i++) { \
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs(dev)[i]; \
input_devices[i] = device_get_binding(in_cfg->label); \
if (!input_devices[i]) { \
LOG_ERR("Unable to find input GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(input_devices[i], in_cfg->pin, GPIO_INPUT | in_cfg->flags); \
if (err) { \
LOG_ERR("Unable to configure pin %d on %s for input", in_cfg->pin, in_cfg->label); \
return err; \
} \
COND_CODE_0( \
CONFIG_ZMK_KSCAN_GPIO_POLLING, \
(irq_callbacks_##n[i].work = &data->work; \
irq_callbacks_##n[i].debounce_period = cfg->debounce_period; \
gpio_init_callback(&irq_callbacks_##n[i].callback, \
kscan_gpio_irq_callback_handler, BIT(in_cfg->pin)); \
err = gpio_add_callback(input_devices[i], &irq_callbacks_##n[i].callback); \
if (err) { \
LOG_ERR("Error adding the callback to the column device"); \
return err; \
}), \
()) \
} \
data->dev = dev; \
COND_CODE_1(CONFIG_ZMK_KSCAN_GPIO_POLLING, \
(k_timer_init(&data->poll_timer, kscan_gpio_timer_handler, NULL);), ()) \
if (cfg->debounce_period > 0) { \
k_delayed_work_init(&data->work.delayed, kscan_gpio_work_handler); \
} else { \
k_work_init(&data->work.direct, kscan_gpio_work_handler); \
} \
return 0; \
} \
static const struct kscan_gpio_config kscan_gpio_config_##n = { \
.inputs = {UTIL_LISTIFY(INST_INPUT_LEN(n), KSCAN_DIRECT_INPUT_ITEM, n)}, \
.num_of_inputs = INST_INPUT_LEN(n), \
.debounce_period = DT_INST_PROP(n, debounce_period)}; \
DEVICE_AND_API_INIT(kscan_gpio_##n, DT_INST_LABEL(n), kscan_gpio_init_##n, \
&kscan_gpio_data_##n, &kscan_gpio_config_##n, POST_KERNEL, \
CONFIG_ZMK_KSCAN_INIT_PRIORITY, &gpio_driver_api);
DT_INST_FOREACH_STATUS_OKAY(GPIO_INST_INIT)

478
app/drivers/zephyr/kscan_gpio_matrix.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020 Peter Johanson <peter@peterjohanson.com>
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@@ -15,266 +15,248 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
struct kscan_gpio_item_config
{
char *label;
gpio_pin_t pin;
gpio_flags_t flags;
struct kscan_gpio_item_config {
char *label;
gpio_pin_t pin;
gpio_flags_t flags;
};
#define _KSCAN_GPIO_ITEM_CFG_INIT(n, prop, idx) \
{ \
.label = DT_INST_GPIO_LABEL_BY_IDX(n, prop, idx), \
.pin = DT_INST_GPIO_PIN_BY_IDX(n, prop, idx), \
.flags = DT_INST_GPIO_FLAGS_BY_IDX(n, prop, idx), \
},
#define _KSCAN_GPIO_ITEM_CFG_INIT(n, prop, idx) \
{ \
.label = DT_INST_GPIO_LABEL_BY_IDX(n, prop, idx), \
.pin = DT_INST_GPIO_PIN_BY_IDX(n, prop, idx), \
.flags = DT_INST_GPIO_FLAGS_BY_IDX(n, prop, idx), \
},
#define _KSCAN_GPIO_ROW_CFG_INIT(idx, n) _KSCAN_GPIO_ITEM_CFG_INIT(n, row_gpios, idx)
#define _KSCAN_GPIO_COL_CFG_INIT(idx, n) _KSCAN_GPIO_ITEM_CFG_INIT(n, col_gpios, idx)
static int kscan_gpio_config_interrupts(struct device **devices,
const struct kscan_gpio_item_config *configs,
size_t len, gpio_flags_t flags)
{
for (int i = 0; i < len; i++)
{
struct device *dev = devices[i];
const struct kscan_gpio_item_config *cfg = &configs[i];
const struct kscan_gpio_item_config *configs, size_t len,
gpio_flags_t flags) {
for (int i = 0; i < len; i++) {
struct device *dev = devices[i];
const struct kscan_gpio_item_config *cfg = &configs[i];
int err = gpio_pin_interrupt_configure(dev, cfg->pin, flags);
int err = gpio_pin_interrupt_configure(dev, cfg->pin, flags);
if (err)
{
LOG_ERR("Unable to enable matrix GPIO interrupt");
return err;
}
}
if (err) {
LOG_ERR("Unable to enable matrix GPIO interrupt");
return err;
}
}
return 0;
return 0;
}
#define INST_MATRIX_ROWS(n) DT_INST_PROP_LEN(n, row_gpios)
#define INST_MATRIX_COLS(n) DT_INST_PROP_LEN(n, col_gpios)
#define INST_OUTPUT_LEN(n) COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (INST_MATRIX_ROWS(n)), (INST_MATRIX_COLS(n)))
#define INST_INPUT_LEN(n) COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (INST_MATRIX_COLS(n)), (INST_MATRIX_ROWS(n)))
#define INST_OUTPUT_LEN(n) \
COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (INST_MATRIX_ROWS(n)), \
(INST_MATRIX_COLS(n)))
#define INST_INPUT_LEN(n) \
COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (INST_MATRIX_COLS(n)), \
(INST_MATRIX_ROWS(n)))
#define GPIO_INST_INIT(n) \
struct kscan_gpio_irq_callback_##n \
{ \
struct COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work), (k_delayed_work)) * work; \
struct gpio_callback callback; \
}; \
static struct kscan_gpio_irq_callback_##n \
irq_callbacks_##n[INST_INPUT_LEN(n)]; \
struct kscan_gpio_config_##n \
{ \
struct kscan_gpio_item_config rows[INST_MATRIX_ROWS(n)]; \
struct kscan_gpio_item_config cols[INST_MATRIX_COLS(n)]; \
}; \
struct kscan_gpio_data_##n \
{ \
kscan_callback_t callback; \
struct COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work), (k_delayed_work)) work; \
bool matrix_state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)]; \
struct device *rows[INST_MATRIX_ROWS(n)]; \
struct device *cols[INST_MATRIX_COLS(n)]; \
struct device *dev; \
}; \
static struct device **kscan_gpio_input_devices_##n(struct device *dev) \
{ \
struct kscan_gpio_data_##n *data = dev->driver_data; \
return (COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (data->cols), (data->rows))); \
} \
static const struct kscan_gpio_item_config *kscan_gpio_input_configs_##n(struct device *dev) \
{ \
const struct kscan_gpio_config_##n *cfg = dev->config_info; \
return ((COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (cfg->cols), (cfg->rows)))); \
} \
static struct device **kscan_gpio_output_devices_##n(struct device *dev) \
{ \
struct kscan_gpio_data_##n *data = dev->driver_data; \
return (COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (data->rows), (data->cols))); \
} \
static const struct kscan_gpio_item_config *kscan_gpio_output_configs_##n(struct device *dev) \
{ \
const struct kscan_gpio_config_##n *cfg = dev->config_info; \
return (COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (cfg->rows), (cfg->cols))); \
} \
static int kscan_gpio_enable_interrupts_##n(struct device *dev) \
{ \
return kscan_gpio_config_interrupts(kscan_gpio_input_devices_##n(dev), kscan_gpio_input_configs_##n(dev), INST_INPUT_LEN(n), \
GPIO_INT_DEBOUNCE | GPIO_INT_EDGE_BOTH); \
} \
static int kscan_gpio_disable_interrupts_##n(struct device *dev) \
{ \
return kscan_gpio_config_interrupts(kscan_gpio_input_devices_##n(dev), kscan_gpio_input_configs_##n(dev), INST_INPUT_LEN(n), \
GPIO_INT_DISABLE); \
} \
static void kscan_gpio_set_output_state_##n(struct device *dev, int value) \
{ \
for (int i = 0; i < INST_OUTPUT_LEN(n); i++) \
{ \
struct device *in_dev = kscan_gpio_output_devices_##n(dev)[i]; \
const struct kscan_gpio_item_config *cfg = &kscan_gpio_output_configs_##n(dev)[i]; \
gpio_pin_set(in_dev, cfg->pin, value); \
} \
} \
static void kscan_gpio_set_matrix_state_##n(bool state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)], u32_t input_index, u32_t output_index, bool value) \
{ \
state[COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (output_index), (input_index))][COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (input_index), (output_index))] = value; \
} \
static int kscan_gpio_read_##n(struct device *dev) \
{ \
bool submit_follow_up_read = false; \
struct kscan_gpio_data_##n *data = dev->driver_data; \
static bool read_state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)]; \
/* Disable our interrupts temporarily while we scan, to avoid */ \
/* re-entry while we iterate columns and set them active one by one */ \
/* to get pressed state for each matrix cell. */ \
kscan_gpio_disable_interrupts_##n(dev); \
kscan_gpio_set_output_state_##n(dev, 0); \
for (int o = 0; o < INST_OUTPUT_LEN(n); o++) \
{ \
struct device *out_dev = kscan_gpio_output_devices_##n(dev)[o]; \
const struct kscan_gpio_item_config *out_cfg = &kscan_gpio_output_configs_##n(dev)[o]; \
gpio_pin_set(out_dev, out_cfg->pin, 1); \
for (int i = 0; i < INST_INPUT_LEN(n); i++) \
{ \
struct device *in_dev = kscan_gpio_input_devices_##n(dev)[i]; \
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs_##n(dev)[i]; \
kscan_gpio_set_matrix_state_##n(read_state, i, o, gpio_pin_get(in_dev, in_cfg->pin) > 0); \
} \
gpio_pin_set(out_dev, out_cfg->pin, 0); \
} \
/* Set all our outputs as active again, then re-enable interrupts, */ \
/* so we can trigger interrupts again for future press/release */ \
kscan_gpio_set_output_state_##n(dev, 1); \
kscan_gpio_enable_interrupts_##n(dev); \
for (int r = 0; r < INST_MATRIX_ROWS(n); r++) \
{ \
for (int c = 0; c < INST_MATRIX_COLS(n); c++) \
{ \
bool pressed = read_state[r][c]; \
/* Follow up reads needed because further interrupts won't fire on already tripped input GPIO pins */ \
submit_follow_up_read = (submit_follow_up_read || pressed); \
if (pressed != data->matrix_state[r][c]) \
{ \
LOG_DBG("Sending event at %d,%d state %s", \
r, c, (pressed ? "on" : "off")); \
data->matrix_state[r][c] = pressed; \
data->callback(dev, r, c, pressed); \
} \
} \
} \
if (submit_follow_up_read) { \
COND_CODE_0(DT_INST_PROP(n, debounce_period), \
({ k_work_submit(&data->work); }), \
({ \
k_delayed_work_cancel(&data->work); \
k_delayed_work_submit(&data->work, K_MSEC(5)); })) \
} \
return 0; \
} \
static void kscan_gpio_work_handler_##n(struct k_work *work) \
{ \
struct kscan_gpio_data_##n *data = \
CONTAINER_OF(work, struct kscan_gpio_data_##n, work); \
kscan_gpio_read_##n(data->dev); \
} \
static void kscan_gpio_irq_callback_handler_##n(struct device *dev, \
struct gpio_callback *cb, gpio_port_pins_t pin) \
{ \
struct kscan_gpio_irq_callback_##n *data = \
CONTAINER_OF(cb, struct kscan_gpio_irq_callback_##n, callback); \
COND_CODE_0(DT_INST_PROP(n, debounce_period), \
({ k_work_submit(data->work); }), \
({ \
k_delayed_work_cancel(data->work); \
k_delayed_work_submit(data->work, K_MSEC(DT_INST_PROP(n, debounce_period))); })) \
} \
static struct kscan_gpio_data_##n kscan_gpio_data_##n = { \
.rows = { [INST_MATRIX_ROWS(n)-1] = NULL}, \
.cols = { [INST_MATRIX_COLS(n)-1] = NULL }\
}; \
static int kscan_gpio_configure_##n(struct device *dev, kscan_callback_t callback) \
{ \
struct kscan_gpio_data_##n *data = dev->driver_data; \
if (!callback) \
{ \
return -EINVAL; \
} \
data->callback = callback; \
return 0; \
}; \
static int kscan_gpio_enable_##n(struct device *dev) \
{ \
int err = kscan_gpio_enable_interrupts_##n(dev); \
if (err) { return err; } \
return kscan_gpio_read_##n(dev); \
}; \
static int kscan_gpio_init_##n(struct device *dev) \
{ \
struct kscan_gpio_data_##n *data = dev->driver_data; \
int err; \
struct device **input_devices = kscan_gpio_input_devices_##n(dev); \
for (int i = 0; i < INST_INPUT_LEN(n); i++) \
{ \
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs_##n(dev)[i]; \
input_devices[i] = device_get_binding(in_cfg->label); \
if (!input_devices[i]) \
{ \
LOG_ERR("Unable to find input GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(input_devices[i], in_cfg->pin, GPIO_INPUT | in_cfg->flags); \
if (err) \
{ \
LOG_ERR("Unable to configure pin %d on %s for input", in_cfg->pin, in_cfg->label); \
return err; \
} \
irq_callbacks_##n[i].work = &data->work; \
gpio_init_callback(&irq_callbacks_##n[i].callback, kscan_gpio_irq_callback_handler_##n, BIT(in_cfg->pin)); \
err = gpio_add_callback(input_devices[i], &irq_callbacks_##n[i].callback); \
if (err) \
{ \
LOG_ERR("Error adding the callback to the column device"); \
return err; \
} \
} \
struct device **output_devices = kscan_gpio_output_devices_##n(dev); \
for (int o = 0; o < INST_OUTPUT_LEN(n); o++) \
{ \
const struct kscan_gpio_item_config *out_cfg = &kscan_gpio_output_configs_##n(dev)[o]; \
output_devices[o] = device_get_binding(out_cfg->label); \
if (!output_devices[o]) \
{ \
LOG_ERR("Unable to find output GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(output_devices[o], out_cfg->pin, GPIO_OUTPUT_ACTIVE | out_cfg->flags); \
if (err) \
{ \
LOG_ERR("Unable to configure pin %d on %s for output", out_cfg->pin, out_cfg->label); \
return err; \
} \
} \
data->dev = dev; \
(COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work_init), (k_delayed_work_init)))(&data->work, kscan_gpio_work_handler_##n); \
return 0; \
} \
static const struct kscan_driver_api gpio_driver_api_##n = { \
.config = kscan_gpio_configure_##n, \
.enable_callback = kscan_gpio_enable_##n, \
.disable_callback = kscan_gpio_disable_interrupts_##n, \
}; \
static const struct kscan_gpio_config_##n kscan_gpio_config_##n = { \
.rows = { UTIL_LISTIFY(INST_MATRIX_ROWS(n), _KSCAN_GPIO_ROW_CFG_INIT, n) }, \
.cols = { UTIL_LISTIFY(INST_MATRIX_COLS(n), _KSCAN_GPIO_COL_CFG_INIT, n) }, \
}; \
DEVICE_AND_API_INIT(kscan_gpio_##n, DT_INST_LABEL(n), kscan_gpio_init_##n, \
&kscan_gpio_data_##n, &kscan_gpio_config_##n, \
APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY, \
&gpio_driver_api_##n);
#define GPIO_INST_INIT(n) \
struct kscan_gpio_irq_callback_##n { \
struct COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work), (k_delayed_work)) * work; \
struct gpio_callback callback; \
}; \
static struct kscan_gpio_irq_callback_##n irq_callbacks_##n[INST_INPUT_LEN(n)]; \
struct kscan_gpio_config_##n { \
struct kscan_gpio_item_config rows[INST_MATRIX_ROWS(n)]; \
struct kscan_gpio_item_config cols[INST_MATRIX_COLS(n)]; \
}; \
struct kscan_gpio_data_##n { \
kscan_callback_t callback; \
struct COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work), (k_delayed_work)) work; \
bool matrix_state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)]; \
struct device *rows[INST_MATRIX_ROWS(n)]; \
struct device *cols[INST_MATRIX_COLS(n)]; \
struct device *dev; \
}; \
static struct device **kscan_gpio_input_devices_##n(struct device *dev) { \
struct kscan_gpio_data_##n *data = dev->driver_data; \
return (COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (data->cols), \
(data->rows))); \
} \
static const struct kscan_gpio_item_config *kscan_gpio_input_configs_##n(struct device *dev) { \
const struct kscan_gpio_config_##n *cfg = dev->config_info; \
return (( \
COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (cfg->cols), (cfg->rows)))); \
} \
static struct device **kscan_gpio_output_devices_##n(struct device *dev) { \
struct kscan_gpio_data_##n *data = dev->driver_data; \
return (COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (data->rows), \
(data->cols))); \
} \
static const struct kscan_gpio_item_config *kscan_gpio_output_configs_##n( \
struct device *dev) { \
const struct kscan_gpio_config_##n *cfg = dev->config_info; \
return ( \
COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (cfg->rows), (cfg->cols))); \
} \
static int kscan_gpio_enable_interrupts_##n(struct device *dev) { \
return kscan_gpio_config_interrupts(kscan_gpio_input_devices_##n(dev), \
kscan_gpio_input_configs_##n(dev), INST_INPUT_LEN(n), \
GPIO_INT_DEBOUNCE | GPIO_INT_EDGE_BOTH); \
} \
static int kscan_gpio_disable_interrupts_##n(struct device *dev) { \
return kscan_gpio_config_interrupts(kscan_gpio_input_devices_##n(dev), \
kscan_gpio_input_configs_##n(dev), INST_INPUT_LEN(n), \
GPIO_INT_DISABLE); \
} \
static void kscan_gpio_set_output_state_##n(struct device *dev, int value) { \
for (int i = 0; i < INST_OUTPUT_LEN(n); i++) { \
struct device *in_dev = kscan_gpio_output_devices_##n(dev)[i]; \
const struct kscan_gpio_item_config *cfg = &kscan_gpio_output_configs_##n(dev)[i]; \
gpio_pin_set(in_dev, cfg->pin, value); \
} \
} \
static void kscan_gpio_set_matrix_state_##n( \
bool state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)], u32_t input_index, \
u32_t output_index, bool value) { \
state[COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (output_index), \
(input_index))] \
[COND_CODE_0(DT_ENUM_IDX(DT_DRV_INST(n), diode_direction), (input_index), \
(output_index))] = value; \
} \
static int kscan_gpio_read_##n(struct device *dev) { \
bool submit_follow_up_read = false; \
struct kscan_gpio_data_##n *data = dev->driver_data; \
static bool read_state[INST_MATRIX_ROWS(n)][INST_MATRIX_COLS(n)]; \
/* Disable our interrupts temporarily while we scan, to avoid */ \
/* re-entry while we iterate columns and set them active one by one */ \
/* to get pressed state for each matrix cell. */ \
kscan_gpio_disable_interrupts_##n(dev); \
kscan_gpio_set_output_state_##n(dev, 0); \
for (int o = 0; o < INST_OUTPUT_LEN(n); o++) { \
struct device *out_dev = kscan_gpio_output_devices_##n(dev)[o]; \
const struct kscan_gpio_item_config *out_cfg = &kscan_gpio_output_configs_##n(dev)[o]; \
gpio_pin_set(out_dev, out_cfg->pin, 1); \
for (int i = 0; i < INST_INPUT_LEN(n); i++) { \
struct device *in_dev = kscan_gpio_input_devices_##n(dev)[i]; \
const struct kscan_gpio_item_config *in_cfg = \
&kscan_gpio_input_configs_##n(dev)[i]; \
kscan_gpio_set_matrix_state_##n(read_state, i, o, \
gpio_pin_get(in_dev, in_cfg->pin) > 0); \
} \
gpio_pin_set(out_dev, out_cfg->pin, 0); \
} \
/* Set all our outputs as active again, then re-enable interrupts, */ \
/* so we can trigger interrupts again for future press/release */ \
kscan_gpio_set_output_state_##n(dev, 1); \
kscan_gpio_enable_interrupts_##n(dev); \
for (int r = 0; r < INST_MATRIX_ROWS(n); r++) { \
for (int c = 0; c < INST_MATRIX_COLS(n); c++) { \
bool pressed = read_state[r][c]; \
/* Follow up reads needed because further interrupts won't fire on already tripped \
* input GPIO pins */ \
submit_follow_up_read = (submit_follow_up_read || pressed); \
if (pressed != data->matrix_state[r][c]) { \
LOG_DBG("Sending event at %d,%d state %s", r, c, (pressed ? "on" : "off")); \
data->matrix_state[r][c] = pressed; \
data->callback(dev, r, c, pressed); \
} \
} \
} \
if (submit_follow_up_read) { \
COND_CODE_0(DT_INST_PROP(n, debounce_period), ({ k_work_submit(&data->work); }), ({ \
k_delayed_work_cancel(&data->work); \
k_delayed_work_submit(&data->work, K_MSEC(5)); \
})) \
} \
return 0; \
} \
static void kscan_gpio_work_handler_##n(struct k_work *work) { \
struct kscan_gpio_data_##n *data = CONTAINER_OF(work, struct kscan_gpio_data_##n, work); \
kscan_gpio_read_##n(data->dev); \
} \
static void kscan_gpio_irq_callback_handler_##n(struct device *dev, struct gpio_callback *cb, \
gpio_port_pins_t pin) { \
struct kscan_gpio_irq_callback_##n *data = \
CONTAINER_OF(cb, struct kscan_gpio_irq_callback_##n, callback); \
COND_CODE_0(DT_INST_PROP(n, debounce_period), ({ k_work_submit(data->work); }), ({ \
k_delayed_work_cancel(data->work); \
k_delayed_work_submit(data->work, \
K_MSEC(DT_INST_PROP(n, debounce_period))); \
})) \
} \
static struct kscan_gpio_data_##n kscan_gpio_data_##n = { \
.rows = {[INST_MATRIX_ROWS(n) - 1] = NULL}, .cols = {[INST_MATRIX_COLS(n) - 1] = NULL}}; \
static int kscan_gpio_configure_##n(struct device *dev, kscan_callback_t callback) { \
struct kscan_gpio_data_##n *data = dev->driver_data; \
if (!callback) { \
return -EINVAL; \
} \
data->callback = callback; \
return 0; \
}; \
static int kscan_gpio_enable_##n(struct device *dev) { \
int err = kscan_gpio_enable_interrupts_##n(dev); \
if (err) { \
return err; \
} \
return kscan_gpio_read_##n(dev); \
}; \
static int kscan_gpio_init_##n(struct device *dev) { \
struct kscan_gpio_data_##n *data = dev->driver_data; \
int err; \
struct device **input_devices = kscan_gpio_input_devices_##n(dev); \
for (int i = 0; i < INST_INPUT_LEN(n); i++) { \
const struct kscan_gpio_item_config *in_cfg = &kscan_gpio_input_configs_##n(dev)[i]; \
input_devices[i] = device_get_binding(in_cfg->label); \
if (!input_devices[i]) { \
LOG_ERR("Unable to find input GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(input_devices[i], in_cfg->pin, GPIO_INPUT | in_cfg->flags); \
if (err) { \
LOG_ERR("Unable to configure pin %d on %s for input", in_cfg->pin, in_cfg->label); \
return err; \
} \
irq_callbacks_##n[i].work = &data->work; \
gpio_init_callback(&irq_callbacks_##n[i].callback, \
kscan_gpio_irq_callback_handler_##n, BIT(in_cfg->pin)); \
err = gpio_add_callback(input_devices[i], &irq_callbacks_##n[i].callback); \
if (err) { \
LOG_ERR("Error adding the callback to the column device"); \
return err; \
} \
} \
struct device **output_devices = kscan_gpio_output_devices_##n(dev); \
for (int o = 0; o < INST_OUTPUT_LEN(n); o++) { \
const struct kscan_gpio_item_config *out_cfg = &kscan_gpio_output_configs_##n(dev)[o]; \
output_devices[o] = device_get_binding(out_cfg->label); \
if (!output_devices[o]) { \
LOG_ERR("Unable to find output GPIO device"); \
return -EINVAL; \
} \
err = gpio_pin_configure(output_devices[o], out_cfg->pin, \
GPIO_OUTPUT_ACTIVE | out_cfg->flags); \
if (err) { \
LOG_ERR("Unable to configure pin %d on %s for output", out_cfg->pin, \
out_cfg->label); \
return err; \
} \
} \
data->dev = dev; \
(COND_CODE_0(DT_INST_PROP(n, debounce_period), (k_work_init), (k_delayed_work_init)))( \
&data->work, kscan_gpio_work_handler_##n); \
return 0; \
} \
static const struct kscan_driver_api gpio_driver_api_##n = { \
.config = kscan_gpio_configure_##n, \
.enable_callback = kscan_gpio_enable_##n, \
.disable_callback = kscan_gpio_disable_interrupts_##n, \
}; \
static const struct kscan_gpio_config_##n kscan_gpio_config_##n = { \
.rows = {UTIL_LISTIFY(INST_MATRIX_ROWS(n), _KSCAN_GPIO_ROW_CFG_INIT, n)}, \
.cols = {UTIL_LISTIFY(INST_MATRIX_COLS(n), _KSCAN_GPIO_COL_CFG_INIT, n)}, \
}; \
DEVICE_AND_API_INIT(kscan_gpio_##n, DT_INST_LABEL(n), kscan_gpio_init_##n, \
&kscan_gpio_data_##n, &kscan_gpio_config_##n, APPLICATION, \
CONFIG_APPLICATION_INIT_PRIORITY, &gpio_driver_api_##n);
DT_INST_FOREACH_STATUS_OKAY(GPIO_INST_INIT)