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Reduce exe size if only polling or interrupt in use

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HookyKB 2023-04-03 13:20:10 +00:00 • committed by Peter Johanson
parent 48dfbaf48f
commit 94b871bb13
1 changed files with 21 additions and 34 deletions
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55
app/module/drivers/kscan/kscan_gpio_charliplex.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2022 The ZMK Contributors
* Copyright (c) 2020-2023 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
@ -36,14 +36,10 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
DT_INST_PROP_OR(n, debounce_period, DT_INST_PROP(n, debounce_release_ms))
#endif
#define USE_POLLING IS_ENABLED(CONFIG_ZMK_KSCAN_CHARLIPLEX_POLLING)
#define USE_INTERRUPT (!USE_POLLING)
#define COND_INTERRUPT(code) COND_CODE_1(CONFIG_ZMK_KSCAN_CHARLIPLEX_POLLING, (), code)
#define KSCAN_GPIO_CFG_INIT(idx, inst_idx) \
GPIO_DT_SPEC_GET_BY_IDX(DT_DRV_INST(inst_idx), gpios, idx),
#define INST_INTR_DEFINED(n) DT_INST_NODE_HAS_PROP(n, interrupt_gpios)
#define KSCAN_INTR_CFG_INIT(inst_idx) GPIO_DT_SPEC_GET(DT_DRV_INST(inst_idx), interrupt_gpios)
struct kscan_charliplex_data {
@ -51,9 +47,7 @@ struct kscan_charliplex_data {
kscan_callback_t callback;
struct k_work_delayable work;
int64_t scan_time; /* Timestamp of the current or scheduled scan. */
#if USE_INTERRUPT
struct gpio_callback irq_callback;
#endif
/**
* Current state of the matrix as a flattened 2D array of length
* (config->cells.length ^2)
@ -75,9 +69,8 @@ struct kscan_charliplex_config {
struct debounce_config debounce_config;
int32_t debounce_scan_period_ms;
int32_t poll_period_ms;
#if USE_INTERRUPT
bool use_interrupt;
const struct gpio_dt_spec interrupt;
#endif
};
/**
@ -160,7 +153,6 @@ static int kscan_charliplex_set_all_outputs(const struct device *dev, const int
return 0;
}
#if USE_INTERRUPT
static int kscan_charliplex_interrupt_configure(const struct device *dev,
const gpio_flags_t flags) {
const struct kscan_charliplex_config *config = dev->config;
@ -174,9 +166,7 @@ static int kscan_charliplex_interrupt_configure(const struct device *dev,
return 0;
}
#endif
#if USE_INTERRUPT
static int kscan_charliplex_interrupt_enable(const struct device *dev) {
int err = kscan_charliplex_interrupt_configure(dev, GPIO_INT_LEVEL_ACTIVE);
if (err) {
@ -186,9 +176,7 @@ static int kscan_charliplex_interrupt_enable(const struct device *dev) {
// While interrupts are enabled, set all outputs active so an pressed key will trigger
return kscan_charliplex_set_all_outputs(dev, 1);
}
#endif
#if USE_INTERRUPT
static void kscan_charliplex_irq_callback(const struct device *port, struct gpio_callback *cb,
const gpio_port_pins_t _pin) {
struct kscan_charliplex_data *data =
@ -199,7 +187,6 @@ static void kscan_charliplex_irq_callback(const struct device *port, struct gpio
data->scan_time = k_uptime_get();
k_work_reschedule(&data->work, K_NO_WAIT);
}
#endif
static void kscan_charliplex_read_continue(const struct device *dev) {
const struct kscan_charliplex_config *config = dev->config;
@ -211,18 +198,18 @@ static void kscan_charliplex_read_continue(const struct device *dev) {
}
static void kscan_charliplex_read_end(const struct device *dev) {
#if USE_INTERRUPT
// Return to waiting for an interrupt.
kscan_charliplex_interrupt_enable(dev);
#else
struct kscan_charliplex_data *data = dev->data;
const struct kscan_charliplex_config *config = dev->config;
data->scan_time += config->poll_period_ms;
if (config->use_interrupt) {
// Return to waiting for an interrupt.
kscan_charliplex_interrupt_enable(dev);
} else {
data->scan_time += config->poll_period_ms;
// Return to polling slowly.
k_work_reschedule(&data->work, K_TIMEOUT_ABS_MS(data->scan_time));
#endif
// Return to polling slowly.
k_work_reschedule(&data->work, K_TIMEOUT_ABS_MS(data->scan_time));
}
}
static int kscan_charliplex_read(const struct device *dev) {
@ -320,11 +307,11 @@ static int kscan_charliplex_disable(const struct device *dev) {
struct kscan_charliplex_data *data = dev->data;
k_work_cancel_delayable(&data->work);
#if USE_INTERRUPT
return kscan_charliplex_interrupt_configure(dev, GPIO_INT_DISABLE);
#else
const struct kscan_charliplex_config *config = dev->config;
if (config->use_interrupt) {
return kscan_charliplex_interrupt_configure(dev, GPIO_INT_DISABLE);
}
return 0;
#endif
}
static int kscan_charliplex_init_inputs(const struct device *dev) {
@ -340,7 +327,6 @@ static int kscan_charliplex_init_inputs(const struct device *dev) {
return 0;
}
#if USE_INTERRUPT
static int kscan_charliplex_init_interrupt(const struct device *dev) {
struct kscan_charliplex_data *data = dev->data;
@ -358,7 +344,6 @@ static int kscan_charliplex_init_interrupt(const struct device *dev) {
}
return err;
}
#endif
static int kscan_charliplex_init(const struct device *dev) {
struct kscan_charliplex_data *data = dev->data;
@ -367,10 +352,11 @@ static int kscan_charliplex_init(const struct device *dev) {
kscan_charliplex_init_inputs(dev);
kscan_charliplex_set_all_outputs(dev, 0);
#if USE_INTERRUPT
kscan_charliplex_init_interrupt(dev);
#endif
const struct kscan_charliplex_config *config = dev->config;
if (config->use_interrupt) {
kscan_charliplex_init_interrupt(dev);
}
k_work_init_delayable(&data->work, kscan_charliplex_work_handler);
return 0;
}
@ -403,7 +389,8 @@ static const struct kscan_driver_api kscan_charliplex_api = {
}, \
.debounce_scan_period_ms = DT_INST_PROP(n, debounce_scan_period_ms), \
.poll_period_ms = DT_INST_PROP(n, poll_period_ms), \
COND_INTERRUPT((.interrupt = KSCAN_INTR_CFG_INIT(n), ))}; \
.use_interrupt = INST_INTR_DEFINED(n), \
COND_CODE_1(INST_INTR_DEFINED(n), (.interrupt = KSCAN_INTR_CFG_INIT(n)), ())}; \
\
DEVICE_DT_INST_DEFINE(n, &kscan_charliplex_init, NULL, &kscan_charliplex_data_##n, \
&kscan_charliplex_config_##n, APPLICATION, \