/*
 * source/ekernel/drivers/drv/source/disp2/soc/platform_resource/platform_resource.c
 *
 * Copyright (c) 2007-2020 Allwinnertech Co., Ltd.
 * Author: zhengxiaobin <zhengxiaobin@allwinnertech.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <hal_clk.h>
#include "platform_resource.h"

extern u32 g_irq_no[];
extern u32 g_reg_base[];
extern struct clk_info_t g_clk_no[];
extern u32 g_irq_no_len;
extern u32 g_reg_base_len;
extern u32 g_clk_no_len;

s32 plat_get_reg_base(u32 index, u32 *data)
{
    if (index >= g_reg_base_len || !data)
        return -1;
    *data = g_reg_base[index];
    return 0;
}

s32 plat_get_irq_no(u32 index, u32 *data)
{
    if (index >= g_irq_no_len || !data)
        return -1;
    *data = g_irq_no[index];
    return 0;
}

s32 plat_get_clk(char *name, hal_clk_id_t *data)
{
    static int init_get_clk = 0;
    u32 i = 0;
    *data = (hal_clk_id_t)-1;
    if (!init_get_clk) {
        for (i = 0; i < g_clk_no_len; ++i) {
            g_clk_no[i].clk = hal_clock_get(HAL_SUNXI_CCU, g_clk_no[i].clk_id);
            g_clk_no[i].clk_parent = hal_clock_get(HAL_SUNXI_CCU, g_clk_no[i].clk_parent_id);
            g_clk_no[i].rst = hal_reset_control_get(HAL_SUNXI_RESET, g_clk_no[i].rst_id);
        }
        init_get_clk = 1;
    }
    for (i = 0; i < g_clk_no_len; ++i) {
        if(!strcmp(name, g_clk_no[i].name))
            break;
    }
    if (i >= g_clk_no_len || !data)
        return -1;
    *data = g_clk_no[i].clk_id;
    return 0;
}

s32 plat_get_clk_parent(hal_clk_id_t clk, hal_clk_id_t *parent)
{
    u32 i = 0;
    *parent = (hal_clk_id_t)-1;
    for (i = 0; i < g_clk_no_len; ++i) {
        if (g_clk_no[i].clk_id == clk) {
            *parent = g_clk_no[i].clk_parent_id;
            break;
        }
    }

    return (i == g_clk_no_len) ? -1 : 0;
}

s32 plat_get_clk_from_id(hal_clk_id_t clk_id, hal_clk_t *clk, struct reset_control **rst)
{
    u32 i = 0;
    *rst = NULL;
    for (i = 0; i < g_clk_no_len; ++i) {
        if (g_clk_no[i].clk_id == clk_id) {
            *clk = g_clk_no[i].clk;
            *rst = g_clk_no[i].rst;
            break;
        } else if (g_clk_no[i].clk_parent_id == clk_id) {
            *clk = g_clk_no[i].clk_parent;
        }
    }

    return (i == g_clk_no_len) ? -1 : 0;

}

s32 plat_get_rst_by_name(char *name, struct reset_control **rst)
{
    int i;

    for (i = 0; i < g_clk_no_len; ++i) {
        if(!strcmp(name, g_clk_no[i].name)) {
            *rst = g_clk_no[i].rst;
            return 0;
        }
    }

    return -1;
}