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/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2009 Pierre-Alexandre Meyer - All Rights Reserved
 *
 *   Permission is hereby granted, free of charge, to any person
 *   obtaining a copy of this software and associated documentation
 *   files (the "Software"), to deal in the Software without
 *   restriction, including without limitation the rights to use,
 *   copy, modify, merge, publish, distribute, sublicense, and/or
 *   sell copies of the Software, and to permit persons to whom
 *   the Software is furnished to do so, subject to the following
 *   conditions:
 *
 *   The above copyright notice and this permission notice shall
 *   be included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 *
 * -----------------------------------------------------------------------
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <syslinux/config.h>

#include "hdt-menu.h"
#include "hdt-cli.h"
#include "hdt-common.h"

/**
 * cli_clear_screen - clear (erase) the entire screen
 **/
static void cli_clear_screen(int argc __unused, char **argv __unused,
			     struct s_hardware *hardware __unused)
{
    clear_screen();
}

/**
 * main_show_modes - show availables modes
 **/
static void main_show_modes(int argc __unused, char **argv __unused,
			    struct s_hardware *hardware __unused)
{
    int i = 0;

    reset_more_printf();
    printf("Available modes:\n");
    while (list_modes[i]) {
	printf("%s ", list_modes[i]->name);
	i++;
    }
    printf("\n");
}

/**
 * cli_set_mode - set the mode of the cli, in the cli
 *
 * The mode number must be supplied in argv, position 0.
 **/
static void cli_set_mode(int argc, char **argv, struct s_hardware *hardware)
{
    cli_mode_t new_mode;

    reset_more_printf();
    if (argc <= 0) {
	more_printf("Which mode?\n");
	return;
    }

    /*
     * Note! argv[0] is a string representing the mode, we need the
     * equivalent cli_mode_t to pass it to set_mode.
     */
    new_mode = mode_s_to_mode_t(argv[0]);
    set_mode(new_mode, hardware);
}

/**
 * do_exit - shared helper to exit a mode
 **/
static void do_exit(int argc __unused, char **argv __unused,
		    struct s_hardware *hardware)
{
    int new_mode = HDT_MODE;

    switch (hdt_cli.mode) {
    case HDT_MODE:
	new_mode = EXIT_MODE;
	break;
    default:
	new_mode = HDT_MODE;
	break;
    }

    dprintf("CLI DEBUG: Switching from mode %d to mode %d\n", hdt_cli.mode,
	    new_mode);
    set_mode(new_mode, hardware);
}

/**
 * show_cli_help - shared helper to show available commands
 **/
static void show_cli_help(int argc __unused, char **argv __unused,
			  struct s_hardware *hardware __unused)
{
    int j = 0;
    struct cli_mode_descr *current_mode;
    struct cli_callback_descr *associated_module = NULL;

    find_cli_mode_descr(hdt_cli.mode, &current_mode);

    printf("Available commands are:\n");

    /* List first default modules of the mode */
    if (current_mode->default_modules && current_mode->default_modules->modules) {
	while (current_mode->default_modules->modules[j].name) {
	    printf("%s ", current_mode->default_modules->modules[j].name);
	    j++;
	}
	printf("\n");
    }

    /* List secondly the show modules of the mode */
    if (current_mode->show_modules && current_mode->show_modules->modules) {
	printf("\nshow commands:\n");
	j = 0;
	while (current_mode->show_modules->modules[j].name) {
	    printf("%s ", current_mode->show_modules->modules[j].name);
	    j++;
	}
	printf("\n");
    }

    /* List thirdly the set modules of the mode */
    if (current_mode->set_modules && current_mode->set_modules->modules) {
	printf("\nset commands:\n");
	j = 0;
	while (current_mode->set_modules->modules[j].name) {
	    printf("%s ", current_mode->set_modules->modules[j].name);
	    j++;
	}
	printf("\n");
    }

    /* List finally the default modules of the hdt mode */
    if (current_mode->mode != hdt_mode.mode &&
	hdt_mode.default_modules && hdt_mode.default_modules->modules) {
	j = 0;
	while (hdt_mode.default_modules->modules[j].name) {
	    /*
	     * Any default command that is present in hdt mode but
	     * not in the current mode is available. A default
	     * command can be redefined in the current mode though.
	     * This next call test this use case: if it is
	     * overwritten, do not print it again.
	     */
	    find_cli_callback_descr(hdt_mode.default_modules->modules[j].name,
				    current_mode->default_modules,
				    &associated_module);
	    if (associated_module == NULL)
		printf("%s ", hdt_mode.default_modules->modules[j].name);
	    j++;
	}
	printf("\n");
    }

    printf("\n");
    main_show_modes(argc, argv, hardware);
}

/**
 * show_cli_help - shared helper to show available commands
 **/
static void goto_menu(int argc __unused, char **argv __unused,
		      struct s_hardware *hardware)
{
    char version_string[256];
    snprintf(version_string, sizeof version_string, "%s %s (%s)",
	     PRODUCT_NAME, VERSION, CODENAME);
    start_menu_mode(hardware, version_string);
    return;
}

/**
 * main_show_summary - give an overview of the system
 **/
void main_show_summary(int argc __unused, char **argv __unused,
		       struct s_hardware *hardware)
{
    detect_pci(hardware);	/* pxe is detected in the pci */
    detect_dmi(hardware);
    cpu_detect(hardware);
    reset_more_printf();
    clear_screen();
    main_show_cpu(argc, argv, hardware);
    if (hardware->is_dmi_valid) {
	more_printf("System\n");
	more_printf(" Manufacturer : %s\n", hardware->dmi.system.manufacturer);
	more_printf(" Product Name : %s\n", hardware->dmi.system.product_name);
	more_printf(" Serial       : %s\n", hardware->dmi.system.serial);
	more_printf("Bios\n");
	more_printf(" Version      : %s\n", hardware->dmi.bios.version);
	more_printf(" Release      : %s\n", hardware->dmi.bios.release_date);

	int argc = 1;
	char *argv[1] = { "0" };
	show_dmi_memory_modules(argc, argv, hardware);
    }
    main_show_pci(argc, argv, hardware);

    if (hardware->is_pxe_valid)
	main_show_pxe(argc, argv, hardware);

    main_show_kernel(argc, argv, hardware);
}

void main_show_hdt(int argc __unused, char **argv __unused,
		   struct s_hardware *hardware __unused)
{
    reset_more_printf();
    more_printf("HDT\n");
    more_printf(" Product        : %s\n", PRODUCT_NAME);
    more_printf(" Version        : %s (%s)\n", VERSION, CODENAME);
    more_printf(" Project Leader : %s\n", AUTHOR);
    more_printf(" Contact        : %s\n", CONTACT);
    more_printf(" Core Developer : %s\n", CORE_DEVELOPER);
    char *contributors[NB_CONTRIBUTORS] = CONTRIBUTORS;
    for (int c = 0; c < NB_CONTRIBUTORS; c++) {
	more_printf(" Contributor    : %s\n", contributors[c]);
    }
}

/**
 * do_reboot - reboot the system
 **/
static void do_reboot(int argc __unused, char **argv __unused,
		      struct s_hardware *hardware)
{
    /* Use specific syslinux call if needed */
    if (issyslinux())
	return runsyslinuxcmd(hardware->reboot_label);
    else
	return csprint(hardware->reboot_label, 0x07);
}

/* Default hdt mode */
struct cli_callback_descr list_hdt_default_modules[] = {
    {
     .name = CLI_CLEAR,
     .exec = cli_clear_screen,
     },
    {
     .name = CLI_EXIT,
     .exec = do_exit,
     },
    {
     .name = CLI_HELP,
     .exec = show_cli_help,
     },
    {
     .name = CLI_MENU,
     .exec = goto_menu,
     },
    {
     .name = CLI_REBOOT,
     .exec = do_reboot,
     },
    {
     .name = CLI_HISTORY,
     .exec = print_history,
     },
    {
     .name = NULL,
     .exec = NULL},
};

struct cli_callback_descr list_hdt_show_modules[] = {
    {
     .name = CLI_SUMMARY,
     .exec = main_show_summary,
     },
    {
     .name = CLI_PCI,
     .exec = main_show_pci,
     },
    {
     .name = CLI_DMI,
     .exec = main_show_dmi,
     },
    {
     .name = CLI_CPU,
     .exec = main_show_cpu,
     },
    {
     .name = CLI_DISK,
     .exec = disks_summary,
     },
    {
     .name = CLI_PXE,
     .exec = main_show_pxe,
     },
    {
     .name = CLI_SYSLINUX,
     .exec = main_show_syslinux,
     },
    {
     .name = CLI_KERNEL,
     .exec = main_show_kernel,
     },
    {
     .name = CLI_VESA,
     .exec = main_show_vesa,
     },
    {
     .name = CLI_HDT,
     .exec = main_show_hdt,
     },
    {
     .name = CLI_VPD,
     .exec = main_show_vpd,
     },
    {
     .name = CLI_MEMORY,
     .exec = show_dmi_memory_modules,
     },
    {
     .name = "modes",
     .exec = main_show_modes,
     },
    {
     .name = NULL,
     .exec = NULL,
     },
};

struct cli_callback_descr list_hdt_set_modules[] = {
    {
     .name = CLI_MODE,
     .exec = cli_set_mode,
     },
    {
     .name = NULL,
     .exec = NULL,
     },
};

struct cli_module_descr hdt_default_modules = {
    .modules = list_hdt_default_modules,
};

struct cli_module_descr hdt_show_modules = {
    .modules = list_hdt_show_modules,
    .default_callback = main_show_summary,
};

struct cli_module_descr hdt_set_modules = {
    .modules = list_hdt_set_modules,
};

struct cli_mode_descr hdt_mode = {
    .mode = HDT_MODE,
    .name = CLI_HDT,
    .default_modules = &hdt_default_modules,
    .show_modules = &hdt_show_modules,
    .set_modules = &hdt_set_modules,
};