/*
 * (C) Copyright 2010
 * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/ppc4xx-gpio.h>

#include <gdsys_fpga.h>

#include "../common/osd.h"

enum {
        UNITTYPE_VIDEO_USER = 0,
        UNITTYPE_MAIN_USER = 1,
        UNITTYPE_VIDEO_SERVER = 2,
        UNITTYPE_MAIN_SERVER = 3,
};

enum {
        HWVER_101 = 0,
        HWVER_110 = 1,
};

enum {
        AUDIO_NONE = 0,
        AUDIO_TX = 1,
        AUDIO_RX = 2,
        AUDIO_RXTX = 3,
};

enum {
        SYSCLK_156250 = 2,
};

enum {
        RAM_NONE = 0,
        RAM_DDR2_32 = 1,
        RAM_DDR2_64 = 2,
};

static void print_fpga_info(unsigned dev)
{
        ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(dev);
        u16 versions = in_le16(&fpga->versions);
        u16 fpga_version = in_le16(&fpga->fpga_version);
        u16 fpga_features = in_le16(&fpga->fpga_features);
        unsigned unit_type;
        unsigned hardware_version;
        unsigned feature_compression;
        unsigned feature_rs232;
        unsigned feature_audio;
        unsigned feature_sysclock;
        unsigned feature_ramconfig;
        unsigned feature_carrier_speed;
        unsigned feature_carriers;
        unsigned feature_video_channels;
        int fpga_state = get_fpga_state(dev);

        printf("FPGA%d: ", dev);

        hardware_version = versions & 0x000f;

        if (fpga_state
            && !((hardware_version == HWVER_101)
                 && (fpga_state == FPGA_STATE_DONE_FAILED))) {
                puts("not available\n");
                print_fpga_state(dev);
                return;
        }

        unit_type = (versions >> 4) & 0x000f;
        hardware_version = versions & 0x000f;
        feature_compression = (fpga_features >> 13) & 0x0003;
        feature_rs232 = fpga_features & (1<<11);
        feature_audio = (fpga_features >> 9) & 0x0003;
        feature_sysclock = (fpga_features >> 7) & 0x0003;
        feature_ramconfig = (fpga_features >> 5) & 0x0003;
        feature_carrier_speed = fpga_features & (1<<4);
        feature_carriers = (fpga_features >> 2) & 0x0003;
        feature_video_channels = fpga_features & 0x0003;

        switch (unit_type) {
        case UNITTYPE_VIDEO_USER:
                printf("Videochannel Userside");
                break;

        case UNITTYPE_MAIN_USER:
                printf("Mainchannel Userside");
                break;

        case UNITTYPE_VIDEO_SERVER:
                printf("Videochannel Serverside");
                break;

        case UNITTYPE_MAIN_SERVER:
                printf("Mainchannel Serverside");
                break;

        default:
                printf("UnitType %d(not supported)", unit_type);
                break;
        }

        switch (hardware_version) {
        case HWVER_101:
                printf(" HW-Ver 1.01\n");
                break;

        case HWVER_110:
                printf(" HW-Ver 1.10\n");
                break;

        default:
                printf(" HW-Ver %d(not supported)\n",
                       hardware_version);
                break;
        }

        printf("       FPGA V %d.%02d, features:",
                fpga_version / 100, fpga_version % 100);

        printf(" %sRS232", feature_rs232 ? "" : "no ");

        switch (feature_audio) {
        case AUDIO_NONE:
                printf(", no audio");
                break;

        case AUDIO_TX:
                printf(", audio tx");
                break;

        case AUDIO_RX:
                printf(", audio rx");
                break;

        case AUDIO_RXTX:
                printf(", audio rx+tx");
                break;

        default:
                printf(", audio %d(not supported)", feature_audio);
                break;
        }

        switch (feature_sysclock) {
        case SYSCLK_156250:
                printf(", clock 156.25 MHz");
                break;

        default:
                printf(", clock %d(not supported)", feature_sysclock);
                break;
        }

        puts(",\n       ");

        switch (feature_ramconfig) {
        case RAM_NONE:
                printf("no RAM");
                break;

        case RAM_DDR2_32:
                printf("RAM 32 bit DDR2");
                break;

        case RAM_DDR2_64:
                printf("RAM 64 bit DDR2");
                break;

        default:
                printf("RAM %d(not supported)", feature_ramconfig);
                break;
        }

        printf(", %d carrier(s) %s", feature_carriers,
                feature_carrier_speed ? "10 Gbit/s" : "of unknown speed");

        printf(", %d video channel(s)\n", feature_video_channels);
}

/*
 * Check Board Identity:
 */
int checkboard(void)
{
        unsigned k;
        char *s = getenv("serial#");

        printf("Board: ");

        printf("DLVision 10G");

        if (s != NULL) {
                puts(", serial# ");
                puts(s);
        }

        puts("\n");

        for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
                print_fpga_info(k);

        return 0;
}

int last_stage_init(void)
{
        unsigned k;

        for (k = 0; k < CONFIG_SYS_OSD_SCREENS; ++k)
                if (!get_fpga_state(k)
                    || (get_fpga_state(k) == FPGA_STATE_DONE_FAILED))
                        osd_probe(k);

        return 0;
}