source: mainline/uspace/drv/platform/leon3/leon3.c@ dca8fe5

/*
 * Copyright (c) 2012 Jan Vesely
 * Copyright (c) 2013 Jakub Klama
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @defgroup leon3 SPARC LEON3 platform driver.
 * @brief HelenOS SPARC LEON3 platform driver.
 * @{
 */
/** @file
 */

#include <ddf/log.h>
#include <errno.h>
#include <ops/hw_res.h>
#include <stdio.h>
#include "leon3.h"

#define NAME  "leon3"

typedef struct {
        const char *name;
        match_id_t match_id;
        hw_resource_list_t hw_resources;
} leon3_fun_t;

static hw_resource_t amba_res[] = {
        {
                .type = MEM_RANGE,
                .res.mem_range = {
                        .address = AMBAPP_MASTER_AREA,
                        .size = AMBAPP_MASTER_SIZE,
                        .endianness = BIG_ENDIAN
                }
        },
        {
                .type = MEM_RANGE,
                .res.mem_range = {
                        .address = AMBAPP_SLAVE_AREA,
                        .size = AMBAPP_SLAVE_SIZE,
                        .endianness = BIG_ENDIAN,
                }
        }
};

static const leon3_fun_t leon3_func = {
        .name = "leon_amba",
        .match_id = {
                .id =  "leon_amba",
                .score = 90 
        },
        .hw_resources = {
                .count = 2,
                .resources = amba_res
        }
};

static hw_resource_list_t *leon3_get_resources(ddf_fun_t *);
static bool leon3_enable_interrupt(ddf_fun_t *);

static hw_res_ops_t fun_hw_res_ops = {
        .get_resource_list = &leon3_get_resources,
        .enable_interrupt = &leon3_enable_interrupt
};

static ddf_dev_ops_t leon3_fun_ops = {
        .interfaces[HW_RES_DEV_IFACE] = &fun_hw_res_ops
};

static int leon3_add_fun(ddf_dev_t *dev, const leon3_fun_t *fun)
{
        assert(dev);
        assert(fun);
        
        ddf_msg(LVL_DEBUG, "Adding new function '%s'.", fun->name);
        
        /* Create new device function. */
        ddf_fun_t *fnode = ddf_fun_create(dev, fun_inner, fun->name);
        if (fnode == NULL)
                return ENOMEM;
        
        /* Add match id */
        int ret = ddf_fun_add_match_id(fnode, fun->match_id.id,
            fun->match_id.score);
        if (ret != EOK) {
                ddf_fun_destroy(fnode);
                return ret;
        }
        
        /* Allocate needed data */
        leon3_fun_t *rf =
            ddf_fun_data_alloc(fnode, sizeof(leon3_fun_t));
        if (!rf) {
                ddf_fun_destroy(fnode);
                return ENOMEM;
        }
        *rf = *fun;
        
        /* Set provided operations to the device. */
        ddf_fun_set_ops(fnode, &leon3_fun_ops);
        
        /* Register function. */
        ret = ddf_fun_bind(fnode);
        if (ret != EOK) {
                ddf_msg(LVL_ERROR, "Failed binding function %s.", fun->name);
                ddf_fun_destroy(fnode);
                return ret;
        }
        
        return EOK;
}

/** Add the root device.
 *
 * @param dev Device which is root of the whole device tree
 *            (both of HW and pseudo devices).
 *
 * @return Zero on success, negative error number otherwise.
 *
 */
static int leon3_dev_add(ddf_dev_t *dev)
{
        assert(dev);
        
        /* Register functions */
        if (leon3_add_fun(dev, &leon3_func) != EOK) {
                ddf_msg(LVL_ERROR, "Failed to add %s function for "
                    "LEON3 platform.", leon3_func.name);
        }
        
        return EOK;
}

/** The root device driver's standard operations. */
static driver_ops_t leon3_ops = {
        .dev_add = &leon3_dev_add
};

/** The root device driver structure. */
static driver_t leon3_driver = {
        .name = NAME,
        .driver_ops = &leon3_ops
};

static hw_resource_list_t *leon3_get_resources(ddf_fun_t *fnode)
{
        leon3_fun_t *fun = ddf_fun_data_get(fnode);
        assert(fun != NULL);
        
        printf("leon3_get_resources() called\n");
        
        return &fun->hw_resources;
}

static bool leon3_enable_interrupt(ddf_fun_t *fun)
{
        // FIXME TODO
        return false;
}

int main(int argc, char *argv[])
{
        printf("%s: HelenOS SPARC LEON3 platform driver\n", NAME);
        ddf_log_init(NAME);
        return ddf_driver_main(&leon3_driver);
}

/**
 * @}
 */