alc5682.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpigen.h>
#include <acpi/acpi_device.h>
#include <acpi/acpi_soundwire.h>
#include <device/device.h>
#include <device/path.h>
#include <device/soundwire.h>
#include <mipi/ids.h>
#include <stdio.h>
 
#include "chip.h"
 
static struct soundwire_address alc5682_address = {
        .version = SOUNDWIRE_VERSION_1_1,
        .manufacturer_id = MIPI_MFG_ID_REALTEK,
        .part_id = MIPI_DEV_ID_REALTEK_ALC5682,
        .class = MIPI_CLASS_NONE
};
 
static struct soundwire_slave alc5682_slave = {
        .wake_up_unavailable = false,
        .test_mode_supported = false,
        .clock_stop_mode1_supported = true,
        .simplified_clockstopprepare_sm_supported = true,
        .clockstopprepare_hard_reset_behavior = false,
        .highPHY_capable = false,
        .paging_supported = false,
        .bank_delay_supported = false,
        .port15_read_behavior = false,
        .source_port_list = SOUNDWIRE_PORT(1) | SOUNDWIRE_PORT(2) |
                            SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4),
        .sink_port_list = SOUNDWIRE_PORT(1) | SOUNDWIRE_PORT(2) |
                          SOUNDWIRE_PORT(3) | SOUNDWIRE_PORT(4)
};
 
static struct soundwire_bra_mode alc5682_dp0_bra_mode = {
        .bus_frequency_configs_count = 7,
        .bus_frequency_configs = {
                1000 * KHz,     /* 1 MHz */
                2400 * KHz,     /* 2.4 MHz */
                3000 * KHz,     /* 3 MHz */
                4000 * KHz,     /* 4 MHz */
                4800 * KHz,     /* 4.8 MHz */
                9600 * KHz,     /* 9.6 MHz */
                12000 * KHz,    /* 12 MHz */
        },
        .max_data_per_frame = 470,
        .min_us_between_transactions = 0
};
 
static struct soundwire_dp0 alc5682_dp0 = {
        .port_max_wordlength = 64,
        .port_min_wordlength = 1,
        .bra_imp_def_response_supported = false,
        .simplified_channel_prepare_sm = true,
        .imp_def_dp0_interrupts_supported = 0,
        .imp_def_bpt_supported = true,
        .bra_mode_count = 1,
        .bra_mode_list = { 0 }
};
 
static struct soundwire_audio_mode alc5682_audio_mode = {
        .bus_frequency_configs_count = 7,
        .bus_frequency_configs = {
                1000 * KHz,     /* 1 MHz */
                2400 * KHz,     /* 2.4 MHz */
                3000 * KHz,     /* 3 MHz */
                4000 * KHz,     /* 4 MHz */
                4800 * KHz,     /* 4.8 MHz */
                9600 * KHz,     /* 9.6 MHz */
                12000 * KHz,    /* 12 MHz */
        },
        /* Support 8 KHz to 192 KHz sampling frequency */
        .max_sampling_frequency = 192 * KHz,
        .min_sampling_frequency = 8 * KHz,
        .prepare_channel_behavior = CHANNEL_PREPARE_ANY_FREQUENCY
};
 
static struct soundwire_dpn alc5682_dpn = {
        .port_wordlength_configs_count = 3,
        .port_wordlength_configs = { 16, 20, 24 },
        .data_port_type = FULL_DATA_PORT,
        .max_grouping_supported = BLOCK_GROUP_COUNT_1,
        .simplified_channelprepare_sm = false,
        .imp_def_dpn_interrupts_supported = 0,
        .min_channel_number = 1,
        .max_channel_number = 2,
        .modes_supported = MODE_ISOCHRONOUS | MODE_TX_CONTROLLED |
                           MODE_RX_CONTROLLED | MODE_FULL_ASYNCHRONOUS,
        .block_packing_mode = true,
        .port_audio_mode_count = 1,
        .port_audio_mode_list = { 0 }
};
 
static const struct soundwire_codec alc5682_codec = {
        .slave = &alc5682_slave,
        .dp0_bra_mode = { &alc5682_dp0_bra_mode },
        .dp0 = &alc5682_dp0,
        .audio_mode = { &alc5682_audio_mode },
        .dpn = {
                {
                        .port = 1,
                        .source = &alc5682_dpn,
                        .sink = &alc5682_dpn,
                },
                {
                        .port = 2,
                        .source = &alc5682_dpn,
                        .sink = &alc5682_dpn,
                },
                {
                        .port = 3,
                        .source = &alc5682_dpn,
                        .sink = &alc5682_dpn,
                },
                {
                        .port = 4,
                        .source = &alc5682_dpn,
                        .sink = &alc5682_dpn,
                }
        }
};
 
static void soundwire_alc5682_fill_ssdt(const struct device *dev)
{
        struct drivers_soundwire_alc5682_config *config = dev->chip_info;
        const char *scope = acpi_device_scope(dev);
        struct acpi_dp *dsd;
 
        if (!scope)
                return;
 
        acpigen_write_scope(scope);
        acpigen_write_device(acpi_device_name(dev));
 
        /* Set codec address IDs. */
        alc5682_address.link_id = dev->path.generic.id;
        alc5682_address.unique_id = dev->path.generic.subid;
 
        acpigen_write_ADR_soundwire_device(&alc5682_address);
        acpigen_write_name_string("_DDN", config->desc ? : dev->chip_ops->name);
        acpigen_write_STA(acpi_device_status(dev));
 
        dsd = acpi_dp_new_table("_DSD");
        soundwire_gen_codec(dsd, &alc5682_codec, NULL);
        acpi_dp_write(dsd);
 
        acpigen_pop_len(); /* Device */
        acpigen_pop_len(); /* Scope */
}
 
static const char *soundwire_alc5682_acpi_name(const struct device *dev)
{
        struct drivers_soundwire_alc5682_config *config = dev->chip_info;
        static char name[5];
 
        if (config->name)
                return config->name;
        snprintf(name, sizeof(name), "SW%1X%1X", dev->path.generic.id, dev->path.generic.subid);
        return name;
}
 
static struct device_operations soundwire_alc5682_ops = {
        .read_resources         = noop_read_resources,
        .set_resources          = noop_set_resources,
        .acpi_name              = soundwire_alc5682_acpi_name,
        .acpi_fill_ssdt         = soundwire_alc5682_fill_ssdt,
};
 
static void soundwire_alc5682_enable(struct device *dev)
{
        dev->ops = &soundwire_alc5682_ops;
}
 
struct chip_operations drivers_soundwire_alc5682_ops = {
        CHIP_NAME("Realtek ALC5682 SoundWire Codec")
        .enable_dev = soundwire_alc5682_enable
};