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#include <func.h>

#include <mm/tlb_cmd.h>

#define MAX_CMDLINE 256

/** Data and methods for 'help' command. */

static int cmd_help(cmd_arg_t *argv);

static cmd_info_t help_info = {

    .name = "help",

    .description = "List of supported commands.",

    .func = cmd_help,

    .argc = 0

};

/** Data and methods for 'description' command. */

static int cmd_desc(cmd_arg_t *argv);

static void desc_help(void);

static char desc_buf[MAX_CMDLINE+1];

static cmd_arg_t desc_argv = {

    .type = ARG_TYPE_STRING,

    .buffer = desc_buf,

    .len = sizeof(desc_buf)

};

static cmd_info_t desc_info = {

    .name = "describe",

    .description = "Describe specified command.",

    .help = desc_help,

    .func = cmd_desc,

    .argc = 1,

    .argv = &desc_argv

};

/** Data and methods for 'symaddr' command. */

static int cmd_symaddr(cmd_arg_t *argv);

static char symaddr_buf[MAX_CMDLINE+1];

static cmd_arg_t symaddr_argv = {

    .type = ARG_TYPE_STRING,

    .buffer = symaddr_buf,

    .len = sizeof(symaddr_buf)

};

static cmd_info_t symaddr_info = {

    .name = "symaddr",

    .description = "Return symbol address.",

    .func = cmd_symaddr,

    .argc = 1,

    .argv = &symaddr_argv

};

/** Call0 - call function with no parameters */

static char call0_buf[MAX_CMDLINE+1];

static char carg1_buf[MAX_CMDLINE+1];

static char carg2_buf[MAX_CMDLINE+1];

static char carg3_buf[MAX_CMDLINE+1];

static int cmd_call0(cmd_arg_t *argv);

static cmd_arg_t call0_argv = {

    .type = ARG_TYPE_STRING,

    .buffer = call0_buf,

    .len = sizeof(call0_buf)

};

static cmd_info_t call0_info = {

    .name = "call0",

    .description = "call0 <function> -> call function().",

    .func = cmd_call0,

    .argc = 1,

    .argv = &call0_argv

};

static int cmd_call1(cmd_arg_t *argv);

static cmd_arg_t call1_argv[] = {

    {

        .type = ARG_TYPE_STRING,

        .buffer = call0_buf,

        .len = sizeof(call0_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg1_buf,

        .len = sizeof(carg1_buf)

    }

};

static cmd_info_t call1_info = {

    .name = "call1",

    .description = "call1 <function> <arg1> -> call function(arg1).",

    .func = cmd_call1,

    .argc = 2,

    .argv = call1_argv

};

static int cmd_call2(cmd_arg_t *argv);

static cmd_arg_t call2_argv[] = {

    {

        .type = ARG_TYPE_STRING,

        .buffer = call0_buf,

        .len = sizeof(call0_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg1_buf,

        .len = sizeof(carg1_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg2_buf,

        .len = sizeof(carg2_buf)

    }

};

static cmd_info_t call2_info = {

    .name = "call2",

    .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).",

    .func = cmd_call2,

    .argc = 3,

    .argv = call2_argv

};

static int cmd_call3(cmd_arg_t *argv);

static cmd_arg_t call3_argv[] = {

    {

        .type = ARG_TYPE_STRING,

        .buffer = call0_buf,

        .len = sizeof(call0_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg1_buf,

        .len = sizeof(carg1_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg2_buf,

        .len = sizeof(carg2_buf)

    },

    {

        .type = ARG_TYPE_VAR,

        .buffer = carg3_buf,

        .len = sizeof(carg3_buf)

    }

};

static cmd_info_t call3_info = {

    .name = "call3",

    .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).",

    .func = cmd_call3,

    .argc = 4,

    .argv = call3_argv

};

/** Data and methods for 'halt' command. */

static int cmd_halt(cmd_arg_t *argv);

static cmd_info_t halt_info = {

    .name = "halt",

    .description = "Halt the kernel.",

    .func = cmd_halt,

    .argc = 0

};

    spinlock_initialize(&help_info.lock, "kconsole_help");

    link_initialize(&help_info.link);

    if (!cmd_register(&help_info))

        panic("could not register command %s\n", help_info.name);

    spinlock_initialize(&desc_info.lock, "kconsole_desc");

    link_initialize(&desc_info.link);

    if (!cmd_register(&desc_info))

        panic("could not register command %s\n", desc_info.name);

    spinlock_initialize(&symaddr_info.lock, "kconsole_symaddr");

    link_initialize(&symaddr_info.link);

    if (!cmd_register(&symaddr_info))

        panic("could not register command %s\n", symaddr_info.name);

    spinlock_initialize(&call0_info.lock, "kconsole_call0");

    link_initialize(&call0_info.link);

    if (!cmd_register(&call0_info))

        panic("could not register command %s\n", call0_info.name);

    spinlock_initialize(&call1_info.lock, "kconsole_call1");

    link_initialize(&call1_info.link);

    if (!cmd_register(&call1_info))

        panic("could not register command %s\n", call1_info.name);

    spinlock_initialize(&call2_info.lock, "kconsole_call2");

    link_initialize(&call2_info.link);

    if (!cmd_register(&call2_info))

        panic("could not register command %s\n", call2_info.name);

    spinlock_initialize(&call3_info.lock, "kconsole_call3");

    link_initialize(&call3_info.link);

    if (!cmd_register(&call3_info))

        panic("could not register command %s\n", call3_info.name);

    spinlock_initialize(&halt_info.lock, "kconsole_halt");

    link_initialize(&halt_info.link);

    if (!cmd_register(&halt_info))

        panic("could not register command %s\n", halt_info.name);

    spinlock_initialize(&desc_ptlb.lock, "kconsole_ptlb");

    link_initialize(&desc_ptlb.link);

        panic("could not register command %s\n", desc_ptlb.name);

/** List supported commands.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_help(cmd_arg_t *argv)

{

    link_t *cur;

    ipl_t ipl;

    spinlock_lock(&cmd_lock);

    for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {

        cmd_info_t *hlp;

        hlp = list_get_instance(cur, cmd_info_t, link);

        spinlock_lock(&hlp->lock);

        printf("%s - %s\n", hlp->name, hlp->description);

        spinlock_unlock(&hlp->lock);

    }

    spinlock_unlock(&cmd_lock);

    return 1;

}

/** Describe specified command.

 *

 * @param argv Argument vector.

 *

 * @return 0 on failure, 1 on success.

 */

int cmd_desc(cmd_arg_t *argv)

{

    link_t *cur;

    ipl_t ipl;

    spinlock_lock(&cmd_lock);

    for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) {

        cmd_info_t *hlp;

        hlp = list_get_instance(cur, cmd_info_t, link);

        spinlock_lock(&hlp->lock);

        if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) {

            printf("%s - %s\n", hlp->name, hlp->description);

            if (hlp->help)

                hlp->help();

            spinlock_unlock(&hlp->lock);

            break;

        }

        spinlock_unlock(&hlp->lock);

    }

    spinlock_unlock(&cmd_lock);

    return 1;

}

/** Search symbol table */

int cmd_symaddr(cmd_arg_t *argv)

{

    __address symaddr;

    char *symbol;

    symtab_print_search(argv->buffer);

    return 1;

}

/** Call function with zero parameters */

int cmd_call0(cmd_arg_t *argv)

{

    __address symaddr;

    char *symbol;

    __native (*f)(void);

    symaddr = get_symbol_addr(argv->buffer);

    if (!symaddr)

        printf("Symbol %s not found.\n", argv->buffer);

    else if (symaddr == (__address) -1) {

        symtab_print_search(argv->buffer);

        printf("Duplicate symbol, be more specific.\n");

    } else {

        symbol = get_symtab_entry(symaddr);

        printf("Calling f(): 0x%p: %s\n", symaddr, symbol);

        f =  (__native (*)(void)) symaddr;

        printf("Result: 0x%X\n", f());

    }

    return 1;

}

/** Call function with one parameter */

int cmd_call1(cmd_arg_t *argv)

{

    __address symaddr;

    char *symbol;

    __native (*f)(__native);

    __native arg1 = argv[1].intval;

    symaddr = get_symbol_addr(argv->buffer);

    if (!symaddr)

        printf("Symbol %s not found.\n", argv->buffer);

    else if (symaddr == (__address) -1) {

        symtab_print_search(argv->buffer);

        printf("Duplicate symbol, be more specific.\n");

    } else {

        symbol = get_symtab_entry(symaddr);

        printf("Calling f(0x%x): 0x%p: %s\n", arg1, symaddr, symbol);

        f =  (__native (*)(__native)) symaddr;

        printf("Result: 0x%x\n", f(arg1));

    }

    return 1;

}

/** Call function with two parameters */

int cmd_call2(cmd_arg_t *argv)

{

    __address symaddr;

    char *symbol;

    __native (*f)(__native,__native);

    __native arg1 = argv[1].intval;

    __native arg2 = argv[2].intval;

    symaddr = get_symbol_addr(argv->buffer);

    if (!symaddr)

        printf("Symbol %s not found.\n", argv->buffer);

    else if (symaddr == (__address) -1) {

        symtab_print_search(argv->buffer);

        printf("Duplicate symbol, be more specific.\n");

    } else {

        symbol = get_symtab_entry(symaddr);

        printf("Calling f(0x%x,0x%x): 0x%p: %s\n",

               arg1, arg2, symaddr, symbol);

        f =  (__native (*)(__native,__native)) symaddr;

        printf("Result: 0x%x\n", f(arg1, arg2));

    }

    return 1;

}

/** Call function with three parameters */

int cmd_call3(cmd_arg_t *argv)

{

    __address symaddr;

    char *symbol;

    __native (*f)(__native,__native,__native);

    __native arg1 = argv[1].intval;

    __native arg2 = argv[2].intval;

    __native arg3 = argv[3].intval;

    symaddr = get_symbol_addr(argv->buffer);

    if (!symaddr)

        printf("Symbol %s not found.\n", argv->buffer);

    else if (symaddr == (__address) -1) {

        symtab_print_search(argv->buffer);

        printf("Duplicate symbol, be more specific.\n");

    } else {

        symbol = get_symtab_entry(symaddr);

        printf("Calling f(0x%x,0x%x, 0x%x): 0x%p: %s\n",

               arg1, arg2, arg3, symaddr, symbol);

        f =  (__native (*)(__native,__native,__native)) symaddr;

        printf("Result: 0x%x\n", f(arg1, arg2, arg3));

    }

    return 1;

}

/** Print detailed description of 'describe' command. */

void desc_help(void)

{

    printf("Syntax: describe command_name\n");

}

/** Halt the kernel.

 *

 * @param argv Argument vector (ignored).

 *

 * @return 0 on failure, 1 on success (never returns).

 */

int cmd_halt(cmd_arg_t *argv)

{

    halt();

    return 1;

}