feat: add shared LLCC68 Zephyr module

2026-05-19 10:30:34 +08:00
commit 8d19312631
11 changed files with 3450 additions and 0 deletions
@@ -0,0 +1,27 @@
+DT_COMPAT_SEMTECH_LLCC68 := "semtech,llcc68"
+
+config LLCC68
+	bool "Semtech LLCC68 LoRa Radio Driver"
+	depends on SPI && GPIO
+	default $(dt_compat_enabled,$(DT_COMPAT_SEMTECH_LLCC68))
+	help
+	  Enable the Semtech LLCC68 LoRa Radio Driver.
+
+config LLCC68_INIT_PRIORITY
+	int "LLCC68 Initialization Priority"
+	default 90
+	help
+	  The priority of the LLCC68 initialization. Lower numbers indicate
+	  higher priority.
+
+config LLCC68_ALWAYS_USE_SX1262_HIGH_PA
+	bool "LLCC68 Always Use SX1262 High Power Amplifier"
+	default y
+	help
+	  When enabled, the LLCC68/SX1262/SX1261 driver always chooses high
+	  power amplifier settings instead of selecting them from chip version.
+
+module = LLCC68
+module-str = llcc68
+
+source "subsys/logging/Kconfig.template.log_config"
@@ -0,0 +1,69 @@
+#include "llcc68_raw.h"
+
+#include <errno.h>
+#include <zephyr/sys/util.h>
+
+#define DT_DRV_COMPAT semtech_llcc68
+
+static void dio1_irq_trampoline(const struct device *port, struct gpio_callback *cb, uint32_t pins) {
+	ARG_UNUSED(port);
+
+	struct llcc68_data *data           = CONTAINER_OF(cb, struct llcc68_data, dio1_irq_callback);
+	const struct llcc68_config *config = data->self->config;
+
+	if ((pins & BIT(config->dio1_gpio.pin)) != 0U && data->dio1_user_handler != NULL) {
+		data->dio1_user_handler(data->self, data->dio1_user_data);
+	}
+}
+
+int llcc68_init(const struct device *dev) {
+	const struct llcc68_config *config = dev->config;
+	struct llcc68_data *data           = dev->data;
+
+	if (config->tx_enable_gpio.port != NULL) {
+		gpio_pin_configure_dt(&config->tx_enable_gpio, GPIO_OUTPUT_INACTIVE);
+	}
+
+	if (config->rx_enable_gpio.port != NULL) {
+		gpio_pin_configure_dt(&config->rx_enable_gpio, GPIO_OUTPUT_INACTIVE);
+	}
+
+	gpio_pin_configure_dt(&config->reset_gpio, GPIO_OUTPUT_INACTIVE);
+	gpio_pin_configure_dt(&config->busy_gpio, GPIO_INPUT);
+	gpio_pin_configure_dt(&config->dio1_gpio, GPIO_INPUT);
+
+	data->self = dev;
+	gpio_init_callback(&data->dio1_irq_callback, dio1_irq_trampoline, BIT(config->dio1_gpio.pin));
+	if (gpio_add_callback(config->dio1_gpio.port, &data->dio1_irq_callback) < 0) {
+		return -EIO;
+	}
+
+	gpio_pin_interrupt_configure_dt(&config->dio1_gpio, GPIO_INT_DISABLE);
+	return 0;
+}
+
+#define LLCC68_DEFINE(inst)                                                                        \
+	static struct llcc68_data llcc68_data_##inst;                                                  \
+	static const struct llcc68_config llcc68_config_##inst =                                       \
+		{                                                                                          \
+			.spi            = SPI_DT_SPEC_INST_GET(inst, SPI_WORD_SET(8) | SPI_TRANSFER_MSB, 100), \
+			.reset_gpio     = GPIO_DT_SPEC_INST_GET(inst, reset_gpios),                            \
+			.busy_gpio      = GPIO_DT_SPEC_INST_GET(inst, busy_gpios),                             \
+			.dio1_gpio      = GPIO_DT_SPEC_INST_GET(inst, dio1_gpios),                             \
+			.tx_enable_gpio = GPIO_DT_SPEC_INST_GET_OR(inst, tx_enable_gpios, {.port = NULL}),     \
+			.rx_enable_gpio = GPIO_DT_SPEC_INST_GET_OR(inst, rx_enable_gpios, {.port = NULL}),     \
+	};                                                                                             \
+	DEVICE_DT_INST_DEFINE(inst,                                                                    \
+						  llcc68_init,                                                             \
+						  NULL,                                                                    \
+						  &llcc68_data_##inst,                                                     \
+						  &llcc68_config_##inst,                                                   \
+						  POST_KERNEL,                                                             \
+						  CONFIG_LLCC68_INIT_PRIORITY,                                             \
+						  NULL)
+
+BUILD_ASSERT(DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT),
+			 "No status=okay nodes for DT_DRV_COMPAT; check compatible/status");
+
+DT_INST_FOREACH_STATUS_OKAY(LLCC68_DEFINE)
+