/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include <sys/types.h>
#include <dev/wscons/wsdisplay_usl_io.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <errno.h>
#include <string.h>

#include "SDL.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "SDL_wsconsvideo.h"
#include "SDL_wsconsevents_c.h"

static int posted = 0;

int
WSCONS_InitKeyboard(_THIS)
{
    struct termios tty;

    if (ioctl(private->fd, WSKBDIO_GTYPE, &private->kbdType) == -1) {
        WSCONS_ReportError("cannot get keyboard type: %s", strerror(errno));
        return -1;
    }

    if (tcgetattr(private->fd, &private->saved_tty) == -1) {
        WSCONS_ReportError("cannot get terminal attributes: %s",
                           strerror(errno));
        return -1;
    }
    private->did_save_tty = 1;
    tty = private->saved_tty;
    tty.c_iflag = IGNPAR | IGNBRK;
    tty.c_oflag = 0;
    tty.c_cflag = CREAD | CS8;
    tty.c_lflag = 0;
    tty.c_cc[VTIME] = 0;
    tty.c_cc[VMIN] = 1;
    cfsetispeed(&tty, 9600);
    cfsetospeed(&tty, 9600);
    if (tcsetattr(private->fd, TCSANOW, &tty) < 0) {
        WSCONS_ReportError("cannot set terminal attributes: %s",
                           strerror(errno));
        return -1;
    }
    if (ioctl(private->fd, KDSKBMODE, K_RAW) == -1) {
        WSCONS_ReportError("cannot set raw keyboard mode: %s",
                           strerror(errno));
        return -1;
    }

    return 0;
}

void
WSCONS_ReleaseKeyboard(_THIS)
{
    if (private->fd != -1) {
        if (ioctl(private->fd, KDSKBMODE, K_XLATE) == -1) {
            WSCONS_ReportError
                ("cannot restore keyboard to translated mode: %s",
                 strerror(errno));
        }
        if (private->did_save_tty) {
            if (tcsetattr(private->fd, TCSANOW, &private->saved_tty) < 0) {
                WSCONS_ReportError
                    ("cannot restore keynoard attributes: %s",
                     strerror(errno));
            }
        }
    }
}

static void
updateMouse()
{
}

static SDLKey keymap[128];

static SDL_keysym *
TranslateKey(int scancode, SDL_keysym * keysym)
{
    keysym->scancode = scancode;
    keysym->sym = SDLK_UNKNOWN;
    keysym->mod = KMOD_NONE;

    if (scancode < SDL_arraysize(keymap))
        keysym->sym = keymap[scancode];

    if (keysym->sym == SDLK_UNKNOWN)
        printf("Unknown mapping for scancode %d\n", scancode);

    return keysym;
}

static void
updateKeyboard(_THIS)
{
    unsigned char buf[100];
    SDL_keysym keysym;
    int n, i;

    if ((n = read(private->fd, buf, sizeof(buf))) > 0) {
        for (i = 0; i < n; i++) {
            unsigned char c = buf[i] & 0x7f;
            if (c == 224)       // special key prefix -- what should we do with it?
                continue;
            posted +=
                SDL_PrivateKeyboard((buf[i] & 0x80) ? SDL_RELEASED :
                                    SDL_PRESSED, TranslateKey(c, &keysym));
        }
    }
}

void
WSCONS_PumpEvents(_THIS)
{
    do {
        posted = 0;
        updateMouse();
        updateKeyboard(this);
    } while (posted);
}

void
WSCONS_InitOSKeymap(_THIS)
{
    int i;

    /* Make sure unknown keys are mapped correctly */
    for (i = 0; i < SDL_arraysize(keymap); i++) {
        keymap[i] = SDLK_UNKNOWN;
    }

    switch (private->kbdType) {
#ifdef WSKBD_TYPE_ZAURUS
    case WSKBD_TYPE_ZAURUS:
        /* top row */
        keymap[2] = SDLK_1;
        keymap[3] = SDLK_2;
        keymap[4] = SDLK_3;
        keymap[5] = SDLK_4;
        keymap[6] = SDLK_5;
        keymap[7] = SDLK_6;
        keymap[8] = SDLK_7;
        keymap[9] = SDLK_8;
        keymap[10] = SDLK_9;
        keymap[11] = SDLK_0;
        keymap[14] = SDLK_BACKSPACE;

        /* second row */
        keymap[16] = SDLK_q;
        keymap[17] = SDLK_w;
        keymap[18] = SDLK_e;
        keymap[19] = SDLK_r;
        keymap[20] = SDLK_t;
        keymap[21] = SDLK_y;
        keymap[22] = SDLK_u;
        keymap[23] = SDLK_i;
        keymap[24] = SDLK_o;
        keymap[25] = SDLK_p;

        /* third row */
        keymap[15] = SDLK_TAB;
        keymap[30] = SDLK_a;
        keymap[31] = SDLK_s;
        keymap[32] = SDLK_d;
        keymap[33] = SDLK_f;
        keymap[34] = SDLK_g;
        keymap[35] = SDLK_h;
        keymap[36] = SDLK_j;
        keymap[37] = SDLK_k;
        keymap[38] = SDLK_l;

        /* fourth row */
        keymap[42] = SDLK_LSHIFT;
        keymap[44] = SDLK_z;
        keymap[45] = SDLK_x;
        keymap[46] = SDLK_c;
        keymap[47] = SDLK_v;
        keymap[48] = SDLK_b;
        keymap[49] = SDLK_n;
        keymap[50] = SDLK_m;
        keymap[54] = SDLK_RSHIFT;
        keymap[28] = SDLK_RETURN;

        /* fifth row */
        keymap[56] = SDLK_LALT;
        keymap[29] = SDLK_LCTRL;
        /* keymap[56] = ; */
        keymap[0] = SDLK_LSUPER;
        keymap[12] = SDLK_MINUS;
        keymap[57] = SDLK_SPACE;
        keymap[51] = SDLK_COMMA;
        keymap[52] = SDLK_PERIOD;

        /* misc */
        keymap[59] = SDLK_F1;
        keymap[60] = SDLK_F2;
        keymap[61] = SDLK_F3;
        keymap[62] = SDLK_F4;
        keymap[63] = SDLK_F5;
        keymap[1] = SDLK_ESCAPE;
        /* keymap[28] = SDLK_KP_ENTER; */
        keymap[72] = SDLK_UP;
        keymap[75] = SDLK_LEFT;
        keymap[77] = SDLK_RIGHT;
        keymap[80] = SDLK_DOWN;
        break;
#endif /* WSKBD_TYPE_ZAURUS */

    default:
        WSCONS_ReportError("Unable to map keys for keyboard type %u",
                           private->kbdType);
        break;
    }
}

/* end of SDL_wsconsevents.c ... */
/* vi: set ts=4 sw=4 expandtab: */