crosstyan
efc6e17ed0
Add a module-local .gitignore entry for macOS .DS_Store artifacts so generated Finder metadata does not dirty the submodule. Declare the SPI chip-select delay binding properties as integers so Zephyr devicetree validation accepts the custom LLCC68 binding. Pass the configured setup delay into SPI_DT_SPEC_INST_GET using the Zephyr 4 three-argument API, converting the nanosecond devicetree value to the microsecond spi_cs_control delay field.
111 lines
5.5 KiB
C
111 lines
5.5 KiB
C
#include "llcc68_raw.h"
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#include <errno.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/sys_clock.h>
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#include <zephyr/sys/util.h>
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#define DT_DRV_COMPAT semtech_llcc68_weihua
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#define LLCC68_AUTO_RF_SWITCH_MODE(inst) \
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COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, tx_enable_gpios), \
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(COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, rx_enable_gpios), \
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(LLCC68_RF_SWITCH_GPIO_COMPLEMENTARY), (LLCC68_RF_SWITCH_NONE))), \
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(LLCC68_RF_SWITCH_NONE))
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#if defined(CONFIG_LLCC68_RF_SWITCH_DEFAULT_GPIO_COMPLEMENTARY)
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#define LLCC68_DEFAULT_RF_SWITCH_MODE(inst) LLCC68_RF_SWITCH_GPIO_COMPLEMENTARY
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#elif defined(CONFIG_LLCC68_RF_SWITCH_DEFAULT_DIO2_SINGLE)
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#define LLCC68_DEFAULT_RF_SWITCH_MODE(inst) LLCC68_RF_SWITCH_DIO2_SINGLE
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#elif defined(CONFIG_LLCC68_RF_SWITCH_DEFAULT_NONE)
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#define LLCC68_DEFAULT_RF_SWITCH_MODE(inst) LLCC68_RF_SWITCH_NONE
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#else
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#define LLCC68_DEFAULT_RF_SWITCH_MODE(inst) LLCC68_AUTO_RF_SWITCH_MODE(inst)
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#endif
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#define LLCC68_RF_SWITCH_MODE(inst) \
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DT_ENUM_IDX_OR(DT_DRV_INST(inst), rf_switch_mode, LLCC68_DEFAULT_RF_SWITCH_MODE(inst))
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#define LLCC68_SPI_CS_DELAY_US(inst) \
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DIV_ROUND_UP(DT_INST_PROP(inst, spi_cs_setup_delay_ns), NSEC_PER_USEC)
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static void dio1_irq_trampoline(const struct device *port, struct gpio_callback *cb, uint32_t pins) {
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ARG_UNUSED(port);
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struct llcc68_data *data = CONTAINER_OF(cb, struct llcc68_data, dio1_irq_callback);
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const struct llcc68_config *config = data->self->config;
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if ((pins & BIT(config->dio1_gpio.pin)) != 0U && data->dio1_user_handler != NULL) {
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data->dio1_user_handler(data->self, data->dio1_user_data);
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}
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}
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int llcc68_init(const struct device *dev) {
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const struct llcc68_config *config = dev->config;
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struct llcc68_data *data = dev->data;
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if (config->rf_switch_mode == LLCC68_RF_SWITCH_GPIO_COMPLEMENTARY &&
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config->tx_enable_gpio.port != NULL) {
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gpio_pin_configure_dt(&config->tx_enable_gpio, GPIO_OUTPUT_INACTIVE);
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}
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if (config->rf_switch_mode == LLCC68_RF_SWITCH_GPIO_COMPLEMENTARY &&
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config->rx_enable_gpio.port != NULL) {
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gpio_pin_configure_dt(&config->rx_enable_gpio, GPIO_OUTPUT_INACTIVE);
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}
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if (config->rf_switch_mode == LLCC68_RF_SWITCH_DIO2_SINGLE &&
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config->rx_enable_gpio.port != NULL) {
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gpio_pin_configure_dt(&config->rx_enable_gpio, GPIO_OUTPUT_ACTIVE);
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}
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gpio_pin_configure_dt(&config->reset_gpio, GPIO_OUTPUT_INACTIVE);
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gpio_pin_configure_dt(&config->busy_gpio, GPIO_INPUT);
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gpio_pin_configure_dt(&config->dio1_gpio, GPIO_INPUT);
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data->self = dev;
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gpio_init_callback(&data->dio1_irq_callback, dio1_irq_trampoline, BIT(config->dio1_gpio.pin));
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if (gpio_add_callback(config->dio1_gpio.port, &data->dio1_irq_callback) < 0) {
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return -EIO;
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}
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gpio_pin_interrupt_configure_dt(&config->dio1_gpio, GPIO_INT_DISABLE);
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return 0;
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}
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#define LLCC68_DEFINE(inst) \
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BUILD_ASSERT(LLCC68_RF_SWITCH_MODE(inst) != LLCC68_RF_SWITCH_GPIO_COMPLEMENTARY || \
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(DT_INST_NODE_HAS_PROP(inst, tx_enable_gpios) && \
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DT_INST_NODE_HAS_PROP(inst, rx_enable_gpios)), \
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"LLCC68 gpio-complementary RF switch mode requires tx-enable-gpios " \
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"and rx-enable-gpios"); \
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BUILD_ASSERT(LLCC68_RF_SWITCH_MODE(inst) != LLCC68_RF_SWITCH_DIO2_SINGLE || \
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!DT_INST_NODE_HAS_PROP(inst, tx_enable_gpios), \
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"LLCC68 dio2-single RF switch mode uses DIO2 for TXEN and must not " \
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"define tx-enable-gpios"); \
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static struct llcc68_data llcc68_data_##inst; \
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static const struct llcc68_config llcc68_config_##inst = \
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{ \
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.spi = SPI_DT_SPEC_INST_GET( \
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inst, SPI_WORD_SET(8) | SPI_TRANSFER_MSB, LLCC68_SPI_CS_DELAY_US(inst)), \
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.reset_gpio = GPIO_DT_SPEC_INST_GET(inst, reset_gpios), \
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.busy_gpio = GPIO_DT_SPEC_INST_GET(inst, busy_gpios), \
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.dio1_gpio = GPIO_DT_SPEC_INST_GET(inst, dio1_gpios), \
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.tx_enable_gpio = GPIO_DT_SPEC_INST_GET_OR(inst, tx_enable_gpios, {.port = NULL}), \
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.rx_enable_gpio = GPIO_DT_SPEC_INST_GET_OR(inst, rx_enable_gpios, {.port = NULL}), \
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.rf_switch_mode = LLCC68_RF_SWITCH_MODE(inst), \
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}; \
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DEVICE_DT_INST_DEFINE(inst, \
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llcc68_init, \
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NULL, \
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&llcc68_data_##inst, \
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&llcc68_config_##inst, \
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POST_KERNEL, \
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CONFIG_LLCC68_INIT_PRIORITY, \
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NULL)
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BUILD_ASSERT(DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT),
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"No status=okay nodes for DT_DRV_COMPAT; check compatible/status");
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DT_INST_FOREACH_STATUS_OKAY(LLCC68_DEFINE)
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