7237a2659d
Add a driver to support AXP192/2101's LED control function. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
144 lines
4.8 KiB
C
144 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 2024 TOKITA Hiroshi
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr/drivers/led.h>
|
|
#include <zephyr/drivers/i2c.h>
|
|
#include <zephyr/logging/log.h>
|
|
|
|
LOG_MODULE_REGISTER(led_axp192, CONFIG_LED_LOG_LEVEL);
|
|
|
|
#define CHGLED_OUTPUT_HIZ 0x0
|
|
#define CHGLED_OUTPUT_SLOW_BLINK 0x1
|
|
#define CHGLED_OUTPUT_FAST_BLINK 0x2
|
|
#define CHGLED_OUTPUT_DRIVE_LOW 0x3
|
|
|
|
#define CHGLED_OUTPUT_OFFSET 4
|
|
|
|
#define CHGLED_ON (CHGLED_OUTPUT_DRIVE_LOW << CHGLED_OUTPUT_OFFSET)
|
|
#define CHGLED_OFF (CHGLED_OUTPUT_HIZ << CHGLED_OUTPUT_OFFSET)
|
|
#define CHGLED_BLINK_SLOW (CHGLED_OUTPUT_SLOW_BLINK << CHGLED_OUTPUT_OFFSET)
|
|
#define CHGLED_BLINK_FAST (CHGLED_OUTPUT_FAST_BLINK << CHGLED_OUTPUT_OFFSET)
|
|
#define CHGLED_OUTPUT_MASK (BIT_MASK(2) << CHGLED_OUTPUT_OFFSET)
|
|
|
|
#define SLOW_BLINK_DELAY_ON (((1000 / 4) / 1) * 1)
|
|
#define SLOW_BLINK_DELAY_OFF (((1000 / 4) / 1) * 3)
|
|
#define FAST_BLINK_DELAY_ON (((1000 / 4) / 4) * 1)
|
|
#define FAST_BLINK_DELAY_OFF (((1000 / 4) / 4) * 3)
|
|
|
|
#define CHGLED_CTRL_TYPE_A 0x0
|
|
#define CHGLED_CTRL_TYPE_B 0x1
|
|
#define CHGLED_CTRL_BY_REG 0x2
|
|
#define CHGLED_CTRL_BY_CHARGE 0x3
|
|
|
|
#define AXP192_REG_PWROFF_BATTCHK_CHGLED 0x32
|
|
#define AXP192_REG_CHGLED AXP192_REG_PWROFF_BATTCHK_CHGLED
|
|
#define AXP192_CHGLED_CTRL_MASK 0x2
|
|
#define AXP192_CHGLED_CTRL_OFFSET 2
|
|
|
|
#define AXP2101_REG_CHGLED 0x69
|
|
#define AXP2101_CHGLED_CTRL_MASK 0x3
|
|
#define AXP2101_CHGLED_CTRL_OFFSET 1
|
|
|
|
struct led_axp192_config {
|
|
struct i2c_dt_spec i2c;
|
|
uint8_t addr;
|
|
uint8_t mode;
|
|
uint8_t mode_mask;
|
|
uint8_t mode_offset;
|
|
};
|
|
|
|
static int led_axp192_on(const struct device *dev, uint32_t led)
|
|
{
|
|
const struct led_axp192_config *config = dev->config;
|
|
|
|
ARG_UNUSED(led);
|
|
|
|
if (config->mode != CHGLED_CTRL_BY_REG) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return i2c_reg_update_byte_dt(&config->i2c, config->addr, CHGLED_OUTPUT_MASK, CHGLED_ON);
|
|
}
|
|
|
|
static int led_axp192_off(const struct device *dev, uint32_t led)
|
|
{
|
|
const struct led_axp192_config *config = dev->config;
|
|
|
|
ARG_UNUSED(led);
|
|
|
|
if (config->mode != CHGLED_CTRL_BY_REG) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return i2c_reg_update_byte_dt(&config->i2c, config->addr, CHGLED_OUTPUT_MASK, CHGLED_OFF);
|
|
}
|
|
|
|
static int led_axp192_blink(const struct device *dev, uint32_t led, uint32_t delay_on,
|
|
uint32_t delay_off)
|
|
{
|
|
const struct led_axp192_config *config = dev->config;
|
|
|
|
ARG_UNUSED(led);
|
|
|
|
if (config->mode != CHGLED_CTRL_BY_REG) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((delay_on == SLOW_BLINK_DELAY_ON) && (delay_off == SLOW_BLINK_DELAY_OFF)) {
|
|
return i2c_reg_update_byte_dt(&config->i2c, config->addr, CHGLED_OUTPUT_MASK,
|
|
CHGLED_BLINK_SLOW);
|
|
} else if ((delay_on == FAST_BLINK_DELAY_ON) && (delay_off == FAST_BLINK_DELAY_OFF)) {
|
|
return i2c_reg_update_byte_dt(&config->i2c, config->addr, CHGLED_OUTPUT_MASK,
|
|
CHGLED_BLINK_FAST);
|
|
} else {
|
|
LOG_ERR("The AXP192 blink setting can only %d/%d or %d/%d. (%d/%d)",
|
|
SLOW_BLINK_DELAY_ON, SLOW_BLINK_DELAY_OFF, FAST_BLINK_DELAY_ON,
|
|
FAST_BLINK_DELAY_OFF, delay_on, delay_off);
|
|
}
|
|
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
static DEVICE_API(led, led_axp192_api) = {
|
|
.on = led_axp192_on,
|
|
.off = led_axp192_off,
|
|
.blink = led_axp192_blink,
|
|
};
|
|
|
|
static int led_axp192_init(const struct device *dev)
|
|
{
|
|
const struct led_axp192_config *config = dev->config;
|
|
|
|
switch (config->mode) {
|
|
case CHGLED_CTRL_TYPE_A:
|
|
case CHGLED_CTRL_TYPE_B:
|
|
case CHGLED_CTRL_BY_REG:
|
|
case CHGLED_CTRL_BY_CHARGE:
|
|
return i2c_reg_update_byte_dt(&config->i2c, config->addr,
|
|
config->mode_mask << config->mode_offset,
|
|
config->mode << config->mode_offset);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
#define LED_AXPXXXX_DEFINE(n, model, compat) \
|
|
static const struct led_axp192_config led_axp_config_##model##_##n = { \
|
|
.i2c = I2C_DT_SPEC_GET(DT_PARENT(n)), \
|
|
.addr = AXP##model##_REG_CHGLED, \
|
|
.mode = UTIL_CAT(CHGLED_CTRL_, DT_STRING_UPPER_TOKEN(n, x_powers_mode)), \
|
|
.mode_mask = AXP##model##_CHGLED_CTRL_MASK, \
|
|
.mode_offset = AXP##model##_CHGLED_CTRL_OFFSET, \
|
|
}; \
|
|
\
|
|
DEVICE_DT_DEFINE(n, led_axp192_init, NULL, NULL, &led_axp_config_##model##_##n, \
|
|
POST_KERNEL, CONFIG_LED_INIT_PRIORITY, &led_axp192_api);
|
|
|
|
#define LED_AXP192_DEFINE(n) LED_AXPXXXX_DEFINE(n, 192, x_powers_axp192_led)
|
|
#define LED_AXP2101_DEFINE(n) LED_AXPXXXX_DEFINE(n, 2101, x_powers_axp2101_led)
|
|
|
|
DT_FOREACH_STATUS_OKAY(x_powers_axp192_led, LED_AXP192_DEFINE)
|
|
DT_FOREACH_STATUS_OKAY(x_powers_axp2101_led, LED_AXP2101_DEFINE)
|