/*
 * Copyright 2009, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *      Jérôme Duval (korli@users.berlios.de)
 */


#include "driver.h"


static status_t
geode_open(const char *name, uint32 flags, void** cookie)
{
        geode_controller* controller = NULL;

        for (uint32 i = 0; i < gNumCards; i++) {
                if (strcmp(gCards[i].devfs_path, name) == 0) {
                        controller = &gCards[i];
                        break;
                }
        }

        if (controller == NULL)
                return ENODEV;

        if (controller->opened)
                return B_BUSY;

        status_t status = geode_hw_init(controller);
        if (status != B_OK)
                return status;

        atomic_add(&controller->opened, 1);

        *cookie = controller;
        return B_OK;
}


static status_t
geode_read(void* cookie, off_t position, void *buf, size_t* numBytes)
{
        *numBytes = 0;
                /* tell caller nothing was read */
        return B_IO_ERROR;
}


static status_t
geode_write(void* cookie, off_t position, const void* buffer, size_t* numBytes)
{
        *numBytes = 0;
                /* tell caller nothing was written */
        return B_IO_ERROR;
}


static status_t
geode_control(void* cookie, uint32 op, void* arg, size_t length)
{
        geode_controller* controller = (geode_controller*)cookie;
        return multi_audio_control(controller, op, arg, length);
}


static status_t
geode_close(void* cookie)
{
        geode_controller* controller = (geode_controller*)cookie;
        geode_hw_stop(controller);
        atomic_add(&controller->opened, -1);

        return B_OK;
}


static status_t
geode_free(void* cookie)
{
        geode_controller* controller = (geode_controller*)cookie;
        geode_hw_uninit(controller);

        return B_OK;
}


device_hooks gDriverHooks = {
        geode_open,             /* -> open entry point */
        geode_close,            /* -> close entry point */
        geode_free,             /* -> free cookie */
        geode_control,  /* -> control entry point */
        geode_read,             /* -> read entry point */
        geode_write             /* -> write entry point */
};