153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
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#include <errno.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <zephyr/device.h>
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#include <zephyr/drivers/power/ip5306.h>
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#include <zephyr/logging/log.h>
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#include <zephyr/sys/util.h>
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#include "ip5306_priv.h"
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#if IS_ENABLED(CONFIG_IP5306_KEEPALIVE_HW_NRF)
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#include <soc_nrf_common.h>
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#define IP5306_CFG_KEEPALIVE_PSEL_INIT(inst) \
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.keepalive_psel = NRF_DT_GPIOS_TO_PSEL_OR(DT_DRV_INST(inst), keepalive_gpios, 0),
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#else
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#define IP5306_CFG_KEEPALIVE_PSEL_INIT(inst)
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#endif
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LOG_MODULE_REGISTER(ip5306, LOG_LEVEL_INF);
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#define DT_DRV_COMPAT injoinic_ip5306
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#define IP5306_REG_READ0 0x70
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#define IP5306_REG_READ1 0x71
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#define IP5306_STATUS_BIT BIT(3)
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static int ip5306_read_reg(const struct device *dev, uint8_t reg, uint8_t *val)
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{
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const struct ip5306_config *cfg = dev->config;
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return i2c_reg_read_byte_dt(&cfg->i2c, reg, val);
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}
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static int ip5306_get_status_bit(const struct device *dev, uint8_t reg, bool *flag)
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{
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uint8_t value = 0U;
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int ret;
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if (flag == NULL) {
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return -EINVAL;
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}
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ret = ip5306_read_reg(dev, reg, &value);
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if (ret != 0) {
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return ret;
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}
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*flag = ((value & IP5306_STATUS_BIT) != 0U);
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return 0;
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}
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static int ip5306_api_is_charging(const struct device *dev, bool *charging)
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{
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return ip5306_get_status_bit(dev, IP5306_REG_READ0, charging);
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}
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static int ip5306_api_is_charge_full(const struct device *dev, bool *full)
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{
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return ip5306_get_status_bit(dev, IP5306_REG_READ1, full);
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}
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static void ip5306_keepalive_start(const struct device *dev)
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{
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struct ip5306_data *data = dev->data;
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const struct ip5306_config *cfg = dev->config;
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if (!cfg->has_keepalive_gpio || (data->keepalive_interval_ms == 0U)) {
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data->backend = IP5306_KEEPALIVE_BACKEND_NONE;
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return;
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}
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/*
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* 选择策略：
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* 1) DTS 显式请求硬件 offload 时，先尝试硬件后端；
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* 2) 若硬件依赖不可用或资源被占用，则告警后回退软件后端。
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*/
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if (cfg->keepalive_offload) {
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#if IS_ENABLED(CONFIG_IP5306_KEEPALIVE_HW_NRF)
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int ret = ip5306_keepalive_hw_nrf_start(dev);
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if (ret == 0) {
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LOG_INF("Keepalive backend=HW(nRF), pulse=%ums interval=%ums",
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data->keepalive_pulse_ms, data->keepalive_interval_ms);
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return;
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}
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LOG_WRN("HW keepalive unavailable (%d), fallback to SW backend", ret);
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#else
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LOG_WRN("HW keepalive requested but HW backend is not built, fallback to SW backend");
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#endif
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}
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ip5306_keepalive_sw_start(dev);
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LOG_INF("Keepalive backend=SW, pulse=%ums interval=%ums",
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data->keepalive_pulse_ms, data->keepalive_interval_ms);
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}
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static int ip5306_init(const struct device *dev)
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{
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const struct ip5306_config *cfg = dev->config;
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struct ip5306_data *data = dev->data;
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if (!i2c_is_ready_dt(&cfg->i2c)) {
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return -ENODEV;
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}
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if (cfg->has_keepalive_gpio) {
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if (!gpio_is_ready_dt(&cfg->keepalive_gpio)) {
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return -ENODEV;
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}
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if (gpio_pin_configure_dt(&cfg->keepalive_gpio, GPIO_OUTPUT_INACTIVE) != 0) {
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return -EIO;
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}
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}
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data->keepalive_high = false;
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data->dev = dev;
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data->backend = IP5306_KEEPALIVE_BACKEND_NONE;
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data->keepalive_pulse_ms = (cfg->keepalive_pulse_ms != 0U) ?
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cfg->keepalive_pulse_ms : IP5306_KEEPALIVE_DEFAULT_PULSE_MS;
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data->keepalive_interval_ms = (cfg->keepalive_interval_ms != 0U) ?
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cfg->keepalive_interval_ms : IP5306_KEEPALIVE_DEFAULT_INTERVAL_MS;
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ip5306_keepalive_start(dev);
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return 0;
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}
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static const struct ip5306_driver_api ip5306_api = {
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.is_charging = ip5306_api_is_charging,
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.is_charge_full = ip5306_api_is_charge_full,
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};
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#define IP5306_DEFINE(inst) \
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static struct ip5306_data ip5306_data_##inst; \
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static const struct ip5306_config ip5306_cfg_##inst = { \
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.i2c = I2C_DT_SPEC_INST_GET(inst), \
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.keepalive_gpio = GPIO_DT_SPEC_INST_GET_OR(inst, keepalive_gpios, {0}), \
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IP5306_CFG_KEEPALIVE_PSEL_INIT(inst) \
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.keepalive_pulse_ms = DT_INST_PROP(inst, keepalive_pulse_ms), \
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.keepalive_interval_ms = DT_INST_PROP(inst, keepalive_interval_ms), \
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.has_keepalive_gpio = DT_INST_NODE_HAS_PROP(inst, keepalive_gpios), \
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.keepalive_offload = DT_INST_PROP_OR(inst, keepalive_offload, false), \
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}; \
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DEVICE_DT_INST_DEFINE(inst, ip5306_init, NULL, &ip5306_data_##inst, \
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&ip5306_cfg_##inst, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE, \
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&ip5306_api);
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DT_INST_FOREACH_STATUS_OKAY(IP5306_DEFINE)
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