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/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi_device.h>
#include <acpi/acpigen.h>
#include <console/console.h>
#include <device/i2c_simple.h>
#include <device/device.h>
#include <device/path.h>
#include <string.h>
#include "chip.h"
#define I2C_SX9324_ACPI_ID "STH9324"
#define I2C_SX9324_CHIP_NAME "Semtech SX9324"
#define REGISTER(NAME) acpi_dp_add_integer(dsd, \
I2C_SX9324_ACPI_ID "," #NAME, \
config->NAME)
static void i2c_sx9324_fill_ssdt(const struct device *dev)
{
struct drivers_i2c_sx9324_config *config = dev->chip_info;
const char *scope = acpi_device_scope(dev);
struct acpi_i2c i2c = {
.address = dev->path.i2c.device,
.mode_10bit = dev->path.i2c.mode_10bit,
.speed = I2C_SPEED_FAST,
.resource = scope,
};
struct acpi_dp *dsd;
if (!scope || !config)
return;
if (config->speed)
i2c.speed = config->speed;
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(acpi_device_name(dev));
acpigen_write_name_string("_HID", I2C_SX9324_ACPI_ID);
acpigen_write_name_integer("_UID", config->uid);
acpigen_write_name_string("_DDN", config->desc);
acpigen_write_STA(acpi_device_status(dev));
/* Resources */
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpi_device_write_i2c(&i2c);
if (config->irq_gpio.pin_count)
acpi_device_write_gpio(&config->irq_gpio);
else
acpi_device_write_interrupt(&config->irq);
acpigen_write_resourcetemplate_footer();
/* DSD */
dsd = acpi_dp_new_table("_DSD");
acpi_dp_add_integer_array(dsd, "semtech,ph0-pin", config->ph0_pin, ARRAY_SIZE(config->ph0_pin));
acpi_dp_add_integer_array(dsd, "semtech,ph1-pin", config->ph1_pin, ARRAY_SIZE(config->ph1_pin));
acpi_dp_add_integer_array(dsd, "semtech,ph2-pin", config->ph2_pin, ARRAY_SIZE(config->ph2_pin));
acpi_dp_add_integer_array(dsd, "semtech,ph3-pin", config->ph3_pin, ARRAY_SIZE(config->ph3_pin));
acpi_dp_add_integer(dsd, "semtech,ph01-resolution", config->ph01_resolution);
acpi_dp_add_integer(dsd, "semtech,ph23-resolution", config->ph23_resolution);
acpi_dp_add_integer(dsd, "semtech,startup-sensor", config->startup_sensor);
acpi_dp_add_integer(dsd, "semtech,ph01-proxraw-strength", config->ph01_proxraw_strength);
acpi_dp_add_integer(dsd, "semtech,ph23-proxraw-strength", config->ph23_proxraw_strength);
acpi_dp_add_integer(dsd, "semtech,avg-pos-strength", config->avg_pos_strength);
acpi_dp_add_integer(dsd, "semtech,input-precharge-resistor-ohms", config->input_precharge_resistor_ohms);
acpi_dp_add_integer(dsd, "semtech,input-analog-gain", config->input_analog_gain);
acpi_dp_add_string(dsd, "semtech,cs-idle-sleep", config->cs_idle_sleep);
acpi_dp_add_string(dsd, "semtech,int-comp-resistor", config->int_comp_resistor);
#if CONFIG(DRIVERS_I2C_SX9324_SUPPORT_LEGACY_LINUX_DRIVER)
#include "registers.h"
#endif
acpi_dp_write(dsd);
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */
printk(BIOS_INFO, "%s: %s at %s\n", acpi_device_path(dev),
config->desc ? : dev->chip_ops->name, dev_path(dev));
}
#undef REGISTER
static const char *i2c_sx9324_acpi_name(const struct device *dev)
{
static char name[5];
snprintf(name, sizeof(name), "SX%02.2X", dev->path.i2c.device);
return name;
}
static struct device_operations i2c_sx9324_ops = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.acpi_name = i2c_sx9324_acpi_name,
.acpi_fill_ssdt = i2c_sx9324_fill_ssdt,
};
static void i2c_sx9324_enable(struct device *dev)
{
struct drivers_i2c_sx9324_config *config = dev->chip_info;
if (!config) {
dev->enabled = 0;
return;
}
dev->ops = &i2c_sx9324_ops;
if (config->desc)
dev->name = config->desc;
}
struct chip_operations drivers_i2c_sx9324_ops = {
.name = I2C_SX9324_CHIP_NAME,
.enable_dev = i2c_sx9324_enable
};
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