/*
 * Copyright 2020, Jérôme Duval, jerome.duval@gmail.com.
 * Distributed under the terms of the MIT License.
 */


#include "I2CPrivate.h"


device_manager_info *gDeviceManager = NULL;


//      #pragma mark -


status_t
i2c_added_device(device_node *parent)
{
        CALLED();

        int32 pathID = gDeviceManager->create_id(I2C_PATHID_GENERATOR);
        if (pathID < 0) {
                ERROR("cannot register i2c controller - out of path IDs\n");
                return B_ERROR;
        }

        device_attr attributes[] = {
                // info about device
                { B_DEVICE_PRETTY_NAME, B_STRING_TYPE, { .string = "I2C bus" }},
                { B_DEVICE_BUS, B_STRING_TYPE, { .string = "i2c" }},
                { I2C_BUS_PATH_ID_ITEM, B_UINT8_TYPE, { .ui8 = (uint8)pathID }},
                { NULL }
        };

        TRACE("i2c_added_device parent %p\n", parent);

        return gDeviceManager->register_node(parent, I2C_BUS_MODULE_NAME,
                attributes, NULL, NULL);
}


status_t
i2c_register_device(i2c_bus _bus, i2c_addr slaveAddress, char* hid,
        char** cid, acpi_handle acpiHandle)
{
        CALLED();
        I2CBus* bus = (I2CBus*)_bus;
        return bus->RegisterDevice(slaveAddress, hid, cid, acpiHandle);
}


static status_t
std_ops(int32 op, ...)
{
        switch (op) {
                case B_MODULE_INIT:
                case B_MODULE_UNINIT:
                        return B_OK;

                default:
                        break;
        }

        return B_ERROR;
}


//      #pragma mark -


i2c_for_controller_interface gI2CForControllerModule = {
        {
                {
                        I2C_FOR_CONTROLLER_MODULE_NAME,
                        0,
                        &std_ops
                },

                NULL, // supported devices
                i2c_added_device,
                NULL,
                NULL,
                NULL
        },

        i2c_register_device,
};


module_dependency module_dependencies[] = {
        { B_DEVICE_MANAGER_MODULE_NAME, (module_info **)&gDeviceManager },
        {}
};


module_info *modules[] = {
        (module_info *)&gI2CForControllerModule,
        (module_info *)&gI2CBusModule,
        (module_info *)&gI2CDeviceModule,
        (module_info *)&gI2CBusRawModule,
        NULL
};