Fix .gitignore, add missing changes.
This commit is contained in:
Pete Johanson
parent
17ef033f00
commit
a6a364725d
|
|
@ -1,6 +1,6 @@
|
|||
.west/
|
||||
bootloader/
|
||||
modules/
|
||||
tools/
|
||||
zephyr/
|
||||
build/
|
||||
/.west
|
||||
/bootloader
|
||||
/modules
|
||||
/tools
|
||||
/zephyr
|
||||
/build
|
||||
|
|
|
|||
|
|
@ -1,5 +1,4 @@
|
|||
if(CONFIG_ZMK_KSCAN_GPIO_DRIVER)
|
||||
# Add hello_world_driver.h to the set of global include paths.
|
||||
zephyr_include_directories(.)
|
||||
|
||||
zephyr_library()
|
||||
|
|
|
|||
|
|
@ -0,0 +1,16 @@
|
|||
# Copyright (c) 2020, Pete Johanson
|
||||
# SPDX-License-Identifier: MIT
|
||||
|
||||
description: Direct GPIO keyboard KSCAN controller
|
||||
|
||||
compatible: "zmk,kscan-gpio-direct"
|
||||
|
||||
include: kscan.yaml
|
||||
|
||||
properties:
|
||||
input-gpios:
|
||||
type: phandle-array
|
||||
required: true
|
||||
debounce-period:
|
||||
type: int
|
||||
default: 5
|
||||
|
|
@ -0,0 +1,263 @@
|
|||
/*
|
||||
* Copyright (c) 2020 Peter Johanson <peter@peterjohanson.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*/
|
||||
|
||||
#define DT_DRV_COMPAT zmk_kscan_gpio_direct
|
||||
|
||||
#include <device.h>
|
||||
#include <drivers/kscan.h>
|
||||
#include <drivers/gpio.h>
|
||||
#include <logging/log.h>
|
||||
|
||||
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;
|
||||
};
|
||||
|
||||
union work_reference {
|
||||
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_data
|
||||
{
|
||||
#if defined(CONFIG_ZMK_KSCAN_GPIO_POLLING)
|
||||
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[];
|
||||
};
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
#if !defined(CONFIG_ZMK_KSCAN_GPIO_POLLING)
|
||||
|
||||
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];
|
||||
|
||||
int err = gpio_pin_interrupt_configure(dev, cfg->pin, flags);
|
||||
|
||||
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_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);
|
||||
}
|
||||
}
|
||||
|
||||
#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);
|
||||
|
||||
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_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_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;
|
||||
LOG_DBG("Scanning the pins for updated 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 pressed = BIT(i) & read_state;
|
||||
if (pressed != (BIT(i) & data->pin_state))
|
||||
{
|
||||
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 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,
|
||||
};
|
||||
|
||||
#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);
|
||||
|
||||
DT_INST_FOREACH_STATUS_OKAY(GPIO_INST_INIT)
|
||||
|
||||
#endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */
|
||||
Loading…
Reference in New Issue