// SPDX-License-Identifier: GPL-2.0
/*
 * Greybus Audio Device Class Protocol helpers
 *
 * Copyright 2015-2016 Google Inc.
 */

#include <linux/greybus.h>
#include "audio_apbridgea.h"
#include "audio_codec.h"

int gb_audio_apbridgea_set_config(struct gb_connection *connection,
                                  __u16 i2s_port, __u32 format, __u32 rate,
                                  __u32 mclk_freq)
{
        struct audio_apbridgea_set_config_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_CONFIG;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.format = cpu_to_le32(format);
        req.rate = cpu_to_le32(rate);
        req.mclk_freq = cpu_to_le32(mclk_freq);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_config);

int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
                                      __u16 i2s_port, __u16 cportid,
                                      __u8 direction)
{
        struct audio_apbridgea_register_cport_request req;
        int ret;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_REGISTER_CPORT;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.cport = cpu_to_le16(cportid);
        req.direction = direction;

        ret = gb_pm_runtime_get_sync(connection->bundle);
        if (ret)
                return ret;

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_register_cport);

int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
                                        __u16 i2s_port, __u16 cportid,
                                        __u8 direction)
{
        struct audio_apbridgea_unregister_cport_request req;
        int ret;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_UNREGISTER_CPORT;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.cport = cpu_to_le16(cportid);
        req.direction = direction;

        ret = gb_hd_output(connection->hd, &req, sizeof(req),
                           GB_APB_REQUEST_AUDIO_CONTROL, true);

        gb_pm_runtime_put_autosuspend(connection->bundle);

        return ret;
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_unregister_cport);

int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
                                        __u16 i2s_port, __u16 size)
{
        struct audio_apbridgea_set_tx_data_size_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_TX_DATA_SIZE;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.size = cpu_to_le16(size);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_tx_data_size);

int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
                                  __u16 i2s_port)
{
        struct audio_apbridgea_prepare_tx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_PREPARE_TX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_prepare_tx);

int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
                                __u16 i2s_port, __u64 timestamp)
{
        struct audio_apbridgea_start_tx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_START_TX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.timestamp = cpu_to_le64(timestamp);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_start_tx);

int gb_audio_apbridgea_stop_tx(struct gb_connection *connection, __u16 i2s_port)
{
        struct audio_apbridgea_stop_tx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_STOP_TX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_stop_tx);

int gb_audio_apbridgea_shutdown_tx(struct gb_connection *connection,
                                   __u16 i2s_port)
{
        struct audio_apbridgea_shutdown_tx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_SHUTDOWN_TX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_shutdown_tx);

int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
                                        __u16 i2s_port, __u16 size)
{
        struct audio_apbridgea_set_rx_data_size_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_RX_DATA_SIZE;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);
        req.size = cpu_to_le16(size);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_rx_data_size);

int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
                                  __u16 i2s_port)
{
        struct audio_apbridgea_prepare_rx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_PREPARE_RX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_prepare_rx);

int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
                                __u16 i2s_port)
{
        struct audio_apbridgea_start_rx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_START_RX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_start_rx);

int gb_audio_apbridgea_stop_rx(struct gb_connection *connection, __u16 i2s_port)
{
        struct audio_apbridgea_stop_rx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_STOP_RX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_stop_rx);

int gb_audio_apbridgea_shutdown_rx(struct gb_connection *connection,
                                   __u16 i2s_port)
{
        struct audio_apbridgea_shutdown_rx_request req;

        req.hdr.type = AUDIO_APBRIDGEA_TYPE_SHUTDOWN_RX;
        req.hdr.i2s_port = cpu_to_le16(i2s_port);

        return gb_hd_output(connection->hd, &req, sizeof(req),
                            GB_APB_REQUEST_AUDIO_CONTROL, true);
}
EXPORT_SYMBOL_GPL(gb_audio_apbridgea_shutdown_rx);

MODULE_LICENSE("GPL v2");
MODULE_ALIAS("greybus:audio-apbridgea");
MODULE_DESCRIPTION("Greybus Special APBridgeA Audio Protocol library");
MODULE_AUTHOR("Mark Greer <mgreer@animalcreek.com>");