da7219.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi.h>
#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 "chip.h"
 
#if CONFIG(HAVE_ACPI_TABLES)
 
#define DA7219_ACPI_NAME        "DLG7"
#define DA7219_ACPI_HID         "DLGS7219"
 
static void da7219_fill_ssdt(const struct device *dev)
{
        struct drivers_i2c_da7219_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 = config->bus_speed ? : I2C_SPEED_FAST,
                .resource = scope,
        };
        struct acpi_dp *dsd, *aad;
 
        if (!scope)
                return;
 
        /* Device */
        acpigen_write_scope(scope);
        acpigen_write_device(acpi_device_name(dev));
        acpigen_write_name_string("_HID", DA7219_ACPI_HID);
        acpigen_write_name_integer("_UID", 1);
        acpigen_write_name_string("_DDN", dev->chip_ops->name);
        acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_HOT);
        acpigen_write_STA(acpi_device_status(dev));
 
        /* Resources */
        acpigen_write_name("_CRS");
        acpigen_write_resourcetemplate_header();
        acpi_device_write_i2c(&i2c);
        /* Use either Interrupt() or GpioInt() */
        if (config->irq_gpio.pin_count)
                acpi_device_write_gpio(&config->irq_gpio);
        else
                acpi_device_write_interrupt(&config->irq);
        acpigen_write_resourcetemplate_footer();
 
        /* AAD Child Device Properties */
        aad = acpi_dp_new_table("DAAD");
        acpi_dp_add_integer(aad, "dlg,btn-cfg", config->btn_cfg);
        acpi_dp_add_integer(aad, "dlg,mic-det-thr", config->mic_det_thr);
        acpi_dp_add_integer(aad, "dlg,jack-ins-deb", config->jack_ins_deb);
        acpi_dp_add_string(aad, "dlg,jack-det-rate", config->jack_det_rate);
        acpi_dp_add_integer(aad, "dlg,jack-rem-deb", config->jack_rem_deb);
        acpi_dp_add_integer(aad, "dlg,a-d-btn-thr", config->a_d_btn_thr);
        acpi_dp_add_integer(aad, "dlg,d-b-btn-thr", config->d_b_btn_thr);
        acpi_dp_add_integer(aad, "dlg,b-c-btn-thr", config->b_c_btn_thr);
        acpi_dp_add_integer(aad, "dlg,c-mic-btn-thr", config->c_mic_btn_thr);
        acpi_dp_add_integer(aad, "dlg,btn-avg", config->btn_avg);
        acpi_dp_add_integer(aad, "dlg,adc-1bit-rpt", config->adc_1bit_rpt);
        if (config->micbias_pulse_lvl > 0) {
                acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl",
                                    config->micbias_pulse_lvl);
                acpi_dp_add_integer(aad, "dlg,micbias-pulse-time",
                                    config->micbias_pulse_time);
        }
 
        /* DA7219 Properties */
        dsd = acpi_dp_new_table("_DSD");
        acpi_dp_add_integer(dsd, "dlg,micbias-lvl", config->micbias_lvl);
        acpi_dp_add_string(dsd, "dlg,mic-amp-in-sel", config->mic_amp_in_sel);
        if (config->mclk_name != NULL)
                acpi_dp_add_string(dsd, "dlg,mclk-name", config->mclk_name);
        acpi_dp_add_child(dsd, "da7219_aad", aad);
 
        /* Write Device Property Hierarchy */
        acpi_dp_write(dsd);
 
        acpigen_pop_len(); /* Device */
        acpigen_pop_len(); /* Scope */
 
        printk(BIOS_INFO, "%s: %s address 0%xh irq %d\n",
               acpi_device_path(dev), dev->chip_ops->name,
               dev->path.i2c.device, config->irq.pin);
}
 
static const char *da7219_acpi_name(const struct device *dev)
{
        return DA7219_ACPI_NAME;
}
#endif
 
static struct device_operations da7219_ops = {
        .read_resources         = noop_read_resources,
        .set_resources          = noop_set_resources,
#if CONFIG(HAVE_ACPI_TABLES)
        .acpi_name              = da7219_acpi_name,
        .acpi_fill_ssdt         = da7219_fill_ssdt,
#endif
};
 
static void da7219_enable(struct device *dev)
{
        dev->ops = &da7219_ops;
}
 
struct chip_operations drivers_i2c_da7219_ops = {
        CHIP_NAME("Dialog Semiconductor DA7219 Audio Codec")
        .enable_dev = da7219_enable
};