WebSVN – HelenOS – Diff – /branches/dynload/uspace/srv/console/console.c


/*
 * Copyright (c) 2006 Josef Cejka
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup console
 * @{
 */
/** @file
 */
 
#include <libc.h>
#include <fb.h>
#include <ipc/ipc.h>
#include <kbd.h>
#include <kbd/keycode.h>
#include <ipc/fb.h>
#include <ipc/services.h>
#include <errno.h>
#include <key_buffer.h>
#include <ipc/console.h>
#include <unistd.h>
#include <async.h>
#include <libadt/fifo.h>
#include <screenbuffer.h>
#include <sys/mman.h>
#include <stdio.h>
#include <string.h>
#include <sysinfo.h>
#include <event.h>
 
#include "console.h"
#include "gcons.h"
 
#define MAX_KEYREQUESTS_BUFFERED 32
 
#define NAME "console"
 
/** Index of currently used virtual console.
 */
int active_console = 0;
int prev_console = 0;
 
/** Phone to the keyboard driver. */
static int kbd_phone;
 
/** Information about framebuffer */
struct {
    int phone;      /**< Framebuffer phone */
    ipcarg_t rows;      /**< Framebuffer rows */
    ipcarg_t cols;      /**< Framebuffer columns */
} fb_info;
 
typedef struct {
    keybuffer_t keybuffer;      /**< Buffer for incoming keys. */
    /** Buffer for unsatisfied request for keys. */
    FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
        MAX_KEYREQUESTS_BUFFERED); 
    int keyrequest_counter;     /**< Number of requests in buffer. */
    int client_phone;       /**< Phone to connected client. */
    int used;           /**< 1 if this virtual console is
                     * connected to some client.*/
    screenbuffer_t screenbuffer;    /**< Screenbuffer for saving screen
                     * contents and related settings. */
} connection_t;
 
static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
                         * consoles */
static keyfield_t *interbuffer = NULL;      /**< Pointer to memory shared
                         * with framebufer used for
                         * faster virtual console
                         * switching */
 
/** Information on row-span yet unsent to FB driver. */
struct {
    int row;        /**< Row where the span lies. */
    int col;        /**< Leftmost column of the span. */
    int n;          /**< Width of the span. */
} fb_pending;
 
/** Size of cwrite_buf. */
#define CWRITE_BUF_SIZE 256
 
/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */
static char cwrite_buf[CWRITE_BUF_SIZE];
 
static void fb_putchar(wchar_t c, int row, int col);
 
 
/** Find unused virtual console.
 *
 */
static int find_free_connection(void)
{
    int i;
   
    for (i = 0; i < CONSOLE_COUNT; i++) {
        if (!connections[i].used)
            return i;
    }
    return -1;
}
 
static void clrscr(void)
{
    async_msg_0(fb_info.phone, FB_CLEAR);
}
 
static void curs_visibility(bool visible)
{
    async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
}
 
static void curs_hide_sync(void)
{
    ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
}
 
static void curs_goto(int row, int col)
{
    async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
}
 
static void screen_yield(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
}
 
static void screen_reclaim(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
}
 
static void kbd_yield(void)
{
    ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
}
 
static void kbd_reclaim(void)
{
    ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
}
 
static void set_style(int style)
{
    async_msg_1(fb_info.phone, FB_SET_STYLE, style);
}
 
static void set_color(int fgcolor, int bgcolor, int flags)
{
    async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
}
 
static void set_rgb_color(int fgcolor, int bgcolor)
{
    async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
}
 
static void set_attrs(attrs_t *attrs)
{
    switch (attrs->t) {
    case at_style:
        set_style(attrs->a.s.style);
        break;
 
    case at_idx:
        set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
            attrs->a.i.flags);
        break;
 
    case at_rgb:
        set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
        break;
    }
}
 
/** Send an area of screenbuffer to the FB driver. */
static void fb_update_area(connection_t *conn, int x, int y, int w, int h)
{
    int i, j;
    int rc;
    attrs_t *attrs;
    keyfield_t *field;
 
    if (interbuffer) {
        for (j = 0; j < h; j++) {
            for (i = 0; i < w; i++) {
                interbuffer[i + j * w] =
                    *get_field_at(&conn->screenbuffer,
                    x + i, y + j);
            }
        }
 
        rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
            x, y, w, h);
    } else {
        rc = ENOTSUP;
    }
 
    if (rc != 0) {
        /*
        attrs = &conn->screenbuffer.attrs;
 
        for (j = 0; j < h; j++) {
            for (i = 0; i < w; i++) {
                field = get_field_at(&conn->screenbuffer,
                    x + i, y + j);
                if (!attrs_same(*attrs, field->attrs))
                    set_attrs(&field->attrs);
                attrs = &field->attrs;
 
                fb_putchar(field->character, y + j, x + i);
            }
        }*/
    }
}
 
/** Flush pending cells to FB. */
static void fb_pending_flush(void)
{
    screenbuffer_t *scr;
 
    scr = &(connections[active_console].screenbuffer);
 
    if (fb_pending.n > 0) {
        fb_update_area(&connections[active_console], fb_pending.col,
            fb_pending.row, fb_pending.n, 1);
        fb_pending.n = 0;
    }
}
 
/** Mark a character cell as changed.
 *
 * This adds the cell to the pending rowspan if possible. Otherwise
 * the old span is flushed first.
 */
static void cell_mark_changed(int row, int col)
{
    if (fb_pending.n != 0) {
        if (row != fb_pending.row ||
            col != fb_pending.col + fb_pending.n) {
            fb_pending_flush();
        }
    }
 
    if (fb_pending.n == 0) {
        fb_pending.row = row;
        fb_pending.col = col;
    }
 
    ++fb_pending.n;
}
 
 
/** Print a character to the active VC with buffering. */
static void fb_putchar(wchar_t c, int row, int col)
{
    async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
}
 
/** Process a character from the client (TTY emulation). */
static void write_char(int console, wchar_t ch)
{
    bool flush_cursor = false;
    screenbuffer_t *scr = &(connections[console].screenbuffer);
 
    switch (ch) {
    case '\n':
        fb_pending_flush();
        flush_cursor = true;
        scr->position_y++;
        scr->position_x = 0;
        break;
    case '\r':
        break;
    case '\t':
        scr->position_x += 8;
        scr->position_x -= scr->position_x % 8;
        break;
    case '\b':
        if (scr->position_x == 0)
            break;
        scr->position_x--;
        if (console == active_console)
            cell_mark_changed(scr->position_y, scr->position_x);
        screenbuffer_putchar(scr, ' ');
        break;
    default:   
        if (console == active_console)
            cell_mark_changed(scr->position_y, scr->position_x);
 
        screenbuffer_putchar(scr, ch);
        scr->position_x++;
    }
 
    if (scr->position_x >= scr->size_x) {
        flush_cursor = true;
        scr->position_y++;
    }
   
    if (scr->position_y >= scr->size_y) {
        fb_pending_flush();
        scr->position_y = scr->size_y - 1;
        screenbuffer_clear_line(scr, scr->top_line);
        scr->top_line = (scr->top_line + 1) % scr->size_y;
        if (console == active_console)
            async_msg_1(fb_info.phone, FB_SCROLL, 1);
    }
 
    scr->position_x = scr->position_x % scr->size_x;
 
    if (console == active_console && flush_cursor)
        curs_goto(scr->position_y, scr->position_x);
}
 
/** Switch to new console */
static void change_console(int newcons)
{
    connection_t *conn;
    int i, j, rc;
    keyfield_t *field;
    attrs_t *attrs;
   
    if (newcons == active_console)
        return;
 
    fb_pending_flush();
 
    if (newcons == KERNEL_CONSOLE) {
        async_serialize_start();
        curs_hide_sync();
        gcons_in_kernel();
        screen_yield();
        kbd_yield();
        async_serialize_end();
 
       
        if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
            prev_console = active_console;
            active_console = KERNEL_CONSOLE;
        } else
            newcons = active_console;
    }
   
    if (newcons != KERNEL_CONSOLE) {
        async_serialize_start();
       
        if (active_console == KERNEL_CONSOLE) {
            screen_reclaim();
            kbd_reclaim();
            gcons_redraw_console();
        }
       
        active_console = newcons;
        gcons_change_console(newcons);
        conn = &connections[active_console];
       
        set_attrs(&conn->screenbuffer.attrs);
        curs_visibility(false);
        if (interbuffer) {
            for (j = 0; j < conn->screenbuffer.size_y; j++) {
                for (i = 0; i < conn->screenbuffer.size_x; i++) {
                    unsigned int size_x;
                   
                    size_x = conn->screenbuffer.size_x;
                    interbuffer[j * size_x + i] =
                        *get_field_at(&conn->screenbuffer, i, j);
                }
            }
            /* This call can preempt, but we are already at the end */
            rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
                0, 0, conn->screenbuffer.size_x,
                conn->screenbuffer.size_y);
        }
       
        if ((!interbuffer) || (rc != 0)) {
            set_attrs(&conn->screenbuffer.attrs);
            clrscr();
            attrs = &conn->screenbuffer.attrs;
           
            for (j = 0; j < conn->screenbuffer.size_y; j++)
                for (i = 0; i < conn->screenbuffer.size_x; i++) {
                    field = get_field_at(&conn->screenbuffer, i, j);
                    if (!attrs_same(*attrs, field->attrs))
                        set_attrs(&field->attrs);
                    attrs = &field->attrs;
                    if ((field->character == ' ') &&
                        (attrs_same(field->attrs,
                        conn->screenbuffer.attrs)))
                        continue;
 
                    fb_putchar(field->character, j, i);
                }
        }
       
        curs_goto(conn->screenbuffer.position_y,
            conn->screenbuffer.position_x);
        curs_visibility(conn->screenbuffer.is_cursor_visible);
       
        async_serialize_end();
    }
}
 
/** Handler for keyboard */
static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
{
    ipc_callid_t callid;
    ipc_call_t call;
    int retval;
    kbd_event_t ev;
    connection_t *conn;
    int newcon;
   
    /* Ignore parameters, the connection is alread opened */
    while (1) {
        callid = async_get_call(&call);
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            /* TODO: Handle hangup */
            return;
        case KBD_MS_LEFT:
            newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
            if (newcon != -1)
                change_console(newcon);
            retval = 0;
            break;
        case KBD_MS_MOVE:
            gcons_mouse_move(IPC_GET_ARG1(call),
                IPC_GET_ARG2(call));
            retval = 0;
            break;
        case KBD_EVENT:
            /* Got event from keyboard driver. */
            retval = 0;
            ev.type = IPC_GET_ARG1(call);
            ev.key = IPC_GET_ARG2(call);
            ev.mods = IPC_GET_ARG3(call);
            ev.c = IPC_GET_ARG4(call);
           
            /* switch to another virtual console */
           
            conn = &connections[active_console];
 
            if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
                CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
                if (ev.key == KC_F12)
                    change_console(KERNEL_CONSOLE);
                else
                    change_console(ev.key - KC_F1);
                break;
            }
           
            /* if client is awaiting key, send it */
            if (conn->keyrequest_counter > 0) {    
                conn->keyrequest_counter--;
                ipc_answer_4(fifo_pop(conn->keyrequests), EOK,
                    ev.type, ev.key, ev.mods, ev.c);
                break;
            }
 
            keybuffer_push(&conn->keybuffer, &ev);
            retval = 0;
 
            break;
        default:
            retval = ENOENT;
        }
        ipc_answer_0(callid, retval);
    }
}
 
/** Handle CONSOLE_WRITE call. */
static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)
{
    ipc_callid_t callid;
    size_t size;
    wchar_t ch;
    size_t off;
 
    if (!ipc_data_write_receive(&callid, &size)) {
        ipc_answer_0(callid, EINVAL);
        ipc_answer_0(rid, EINVAL);
        return;
    }
 
    if (size > CWRITE_BUF_SIZE)
        size = CWRITE_BUF_SIZE;
 
    (void) ipc_data_write_finalize(callid, cwrite_buf, size);
 
    async_serialize_start();
 
    off = 0;
    while (off < size) {
        ch = str_decode(cwrite_buf, &off, size);
        write_char(consnum, ch);
    }
 
    async_serialize_end();
 
    gcons_notify_char(consnum);
    ipc_answer_1(rid, EOK, size);
}
 
/** Default thread for new connections */
static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
    ipc_callid_t callid;
    ipc_call_t call;
    int consnum;
    ipcarg_t arg1, arg2, arg3, arg4;
    connection_t *conn;
    screenbuffer_t *scr;
   
    if ((consnum = find_free_connection()) == -1) {
        ipc_answer_0(iid, ELIMIT);
        return;
    }
    conn = &connections[consnum];
    conn->used = 1;
   
    async_serialize_start();
    gcons_notify_connect(consnum);
    conn->client_phone = IPC_GET_ARG5(*icall);
    screenbuffer_clear(&conn->screenbuffer);
    if (consnum == active_console)
        clrscr();
   
    /* Accept the connection */
    ipc_answer_0(iid, EOK);
   
    while (1) {
        async_serialize_end();
        callid = async_get_call(&call);
        async_serialize_start();
       
        arg1 = 0;
        arg2 = 0;
        arg3 = 0;
        arg4 = 0;
 
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            gcons_notify_disconnect(consnum);
           
            /* Answer all pending requests */
            while (conn->keyrequest_counter > 0) {
                conn->keyrequest_counter--;
                ipc_answer_0(fifo_pop(conn->keyrequests),
                    ENOENT);
                break;
            }
            conn->used = 0;
            return;
        case CONSOLE_PUTCHAR:
            write_char(consnum, IPC_GET_ARG1(call));
            gcons_notify_char(consnum);
            break;
        case CONSOLE_WRITE:
            async_serialize_end();
            cons_write(consnum, callid, &call);
            async_serialize_start();
            continue;
        case CONSOLE_CLEAR:
            /* Send message to fb */
            if (consnum == active_console) {
                async_msg_0(fb_info.phone, FB_CLEAR);
            }
           
            screenbuffer_clear(&conn->screenbuffer);
           
            break;
        case CONSOLE_GOTO:
            screenbuffer_goto(&conn->screenbuffer,
                IPC_GET_ARG2(call), IPC_GET_ARG1(call));
            if (consnum == active_console)
                curs_goto(IPC_GET_ARG1(call),
                    IPC_GET_ARG2(call));
            break;
        case CONSOLE_GETSIZE:
            arg1 = fb_info.rows;
            arg2 = fb_info.cols;
            break;
        case CONSOLE_FLUSH:
            fb_pending_flush();
            if (consnum == active_console) {
                async_req_0_0(fb_info.phone, FB_FLUSH);
 
                scr = &(connections[consnum].screenbuffer);
                curs_goto(scr->position_y, scr->position_x);
            }
            break;
        case CONSOLE_SET_STYLE:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            screenbuffer_set_style(&conn->screenbuffer, arg1);
            if (consnum == active_console)
                set_style(arg1);
            break;
        case CONSOLE_SET_COLOR:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            arg2 = IPC_GET_ARG2(call);
            arg3 = IPC_GET_ARG3(call);
            screenbuffer_set_color(&conn->screenbuffer, arg1,
                arg2, arg3);
            if (consnum == active_console)
                set_color(arg1, arg2, arg3);
            break;
        case CONSOLE_SET_RGB_COLOR:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            arg2 = IPC_GET_ARG2(call);
            screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,
                arg2);
            if (consnum == active_console)
                set_rgb_color(arg1, arg2);
            break;
        case CONSOLE_CURSOR_VISIBILITY:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            conn->screenbuffer.is_cursor_visible = arg1;
            if (consnum == active_console)
                curs_visibility(arg1);
            break;
        case CONSOLE_GETKEY:
            if (keybuffer_empty(&conn->keybuffer)) {
                /* buffer is empty -> store request */
                if (conn->keyrequest_counter <
                    MAX_KEYREQUESTS_BUFFERED) {
                    fifo_push(conn->keyrequests, callid);
                    conn->keyrequest_counter++;
                } else {
                    /*
                     * No key available and too many
                     * requests => fail.
                    */
                    ipc_answer_0(callid, ELIMIT);
                }
                continue;
            }
            kbd_event_t ev;
            keybuffer_pop(&conn->keybuffer, &ev);
            arg1 = ev.type;
            arg2 = ev.key;
            arg3 = ev.mods;
            arg4 = ev.c;
            break;
        case CONSOLE_KCON_ENABLE:
            change_console(KERNEL_CONSOLE);
            break;
        }
        ipc_answer_4(callid, EOK, arg1, arg2, arg3, arg4);
    }
}
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
{
    change_console(prev_console);
}
 
int main(int argc, char *argv[])
{
    printf(NAME ": HelenOS Console service\n");
   
    ipcarg_t phonehash;
    size_t ib_size;
    int i;
   
    async_set_client_connection(client_connection);
   
    /* Connect to keyboard driver */
    kbd_phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
    if (kbd_phone < 0) {
        printf(NAME ": Failed to connect to keyboard service\n");
        return -1;
    }
   
    if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0) {
        printf(NAME ": Failed to create callback from keyboard service\n");
        return -1;
    }
   
    async_new_connection(phonehash, 0, NULL, keyboard_events);
   
    /* Connect to framebuffer driver */
    fb_info.phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_VIDEO, 0, 0);
    if (fb_info.phone < 0) {
        printf(NAME ": Failed to connect to video service\n");
        return -1;
    }
   
    /* Disable kernel output to the console */
    __SYSCALL0(SYS_DEBUG_DISABLE_CONSOLE);
   
    /* Initialize gcons */
    gcons_init(fb_info.phone);
    /* Synchronize, the gcons can have something in queue */
    async_req_0_0(fb_info.phone, FB_FLUSH);
   
    async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.rows,
        &fb_info.cols);
    set_rgb_color(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
    clrscr();
   
    /* Init virtual consoles */
    for (i = 0; i < CONSOLE_COUNT; i++) {
        connections[i].used = 0;
        keybuffer_init(&connections[i].keybuffer);
       
        connections[i].keyrequests.head = 0;
        connections[i].keyrequests.tail = 0;
        connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
        connections[i].keyrequest_counter = 0;
       
        if (screenbuffer_init(&connections[i].screenbuffer,
            fb_info.cols, fb_info.rows) == NULL) {
            /* FIXME: handle error */
            return -1;
        }
    }
    connections[KERNEL_CONSOLE].used = 1;
 
    /* Set up shared memory buffer. */
    ib_size = sizeof(keyfield_t) * fb_info.cols * fb_info.rows;
    interbuffer = as_get_mappable_page(ib_size);
 
    fb_pending.n = 0;
 
    if (as_area_create(interbuffer, ib_size, AS_AREA_READ |
        AS_AREA_WRITE | AS_AREA_CACHEABLE) != interbuffer) {
        interbuffer = NULL;
    }
 
    if (interbuffer) {
        if (ipc_share_out_start(fb_info.phone, interbuffer,
            AS_AREA_READ) != EOK) {
            as_area_destroy(interbuffer);
            interbuffer = NULL;
        }
    }
   
    curs_goto(0, 0);
    curs_visibility(
        connections[active_console].screenbuffer.is_cursor_visible);
   
    /* Register at NS */
    if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
        return -1;
   
    /* Receive kernel notifications */
    if (event_subscribe(EVENT_KCONSOLE, 0) != EOK)
        printf(NAME ": Error registering kconsole notifications\n");
       
    async_set_interrupt_received(interrupt_received);
   
    // FIXME: avoid connectiong to itself, keep using klog
    // printf(NAME ": Accepting connections\n");
    async_manager();
   
    return 0;
}
 
/** @}
 */
 

Rev 4348	Rev 4389
1	/*	1	/*
2	* Copyright (c) 2006 Josef Cejka	2	* Copyright (c) 2006 Josef Cejka
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup console	29	/** @addtogroup console
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <libc.h>	35	#include <libc.h>
36	#include <fb.h>	36	#include <fb.h>
37	#include <ipc/ipc.h>	37	#include <ipc/ipc.h>
38	#include <kbd.h>	38	#include <kbd.h>
39	#include <kbd/keycode.h>	39	#include <kbd/keycode.h>
40	#include <ipc/fb.h>	40	#include <ipc/fb.h>
41	#include <ipc/services.h>	41	#include <ipc/services.h>
42	#include <errno.h>	42	#include <errno.h>
43	#include <key_buffer.h>	43	#include <key_buffer.h>
44	#include <ipc/console.h>	44	#include <ipc/console.h>
45	#include <unistd.h>	45	#include <unistd.h>
46	#include <async.h>	46	#include <async.h>
47	#include <libadt/fifo.h>	47	#include <libadt/fifo.h>
48	#include <screenbuffer.h>	48	#include <screenbuffer.h>
49	#include <sys/mman.h>	49	#include <sys/mman.h>
50	#include <stdio.h>	50	#include <stdio.h>
51	#include <string.h>	51	#include <string.h>
52	#include <sysinfo.h>	52	#include <sysinfo.h>
53	#include <event.h>	53	#include <event.h>
54		54
55	#include "console.h"	55	#include "console.h"
56	#include "gcons.h"	56	#include "gcons.h"
57		57
58	#define MAX_KEYREQUESTS_BUFFERED 32	58	#define MAX_KEYREQUESTS_BUFFERED 32
59		59
60	#define NAME "console"	60	#define NAME "console"
61		61
62	/** Index of currently used virtual console.	62	/** Index of currently used virtual console.
63	*/	63	*/
64	int active_console = 0;	64	int active_console = 0;
65	int prev_console = 0;	65	int prev_console = 0;
66		66
67	/** Phone to the keyboard driver. */	67	/** Phone to the keyboard driver. */
68	static int kbd_phone;	68	static int kbd_phone;
69		69
70	/** Information about framebuffer */	70	/** Information about framebuffer */
71	struct {	71	struct {
72	int phone; /*< Framebuffer phone /	72	int phone; /*< Framebuffer phone /
73	ipcarg_t rows; /*< Framebuffer rows /	73	ipcarg_t rows; /*< Framebuffer rows /
74	ipcarg_t cols; /*< Framebuffer columns /	74	ipcarg_t cols; /*< Framebuffer columns /
75	} fb_info;	75	} fb_info;
76		76
77	typedef struct {	77	typedef struct {
78	keybuffer_t keybuffer; /*< Buffer for incoming keys. /	78	keybuffer_t keybuffer; /*< Buffer for incoming keys. /
79	/** Buffer for unsatisfied request for keys. */	79	/** Buffer for unsatisfied request for keys. */
80	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,	80	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
81	MAX_KEYREQUESTS_BUFFERED);	81	MAX_KEYREQUESTS_BUFFERED);
82	int keyrequest_counter; /*< Number of requests in buffer. /	82	int keyrequest_counter; /*< Number of requests in buffer. /
83	int client_phone; /*< Phone to connected client. /	83	int client_phone; /*< Phone to connected client. /
84	int used; /**< 1 if this virtual console is	84	int used; /**< 1 if this virtual console is
85	* connected to some client.*/	85	* connected to some client.*/
86	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen	86	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen
87	* contents and related settings. */	87	* contents and related settings. */
88	} connection_t;	88	} connection_t;
89		89
90	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual	90	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
91	* consoles */	91	* consoles */
92	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared	92	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared
93	* with framebufer used for	93	* with framebufer used for
94	* faster virtual console	94	* faster virtual console
95	* switching */	95	* switching */
96		96
97	/** Information on row-span yet unsent to FB driver. */	97	/** Information on row-span yet unsent to FB driver. */
98	struct {	98	struct {
99	int row; /*< Row where the span lies. /	99	int row; /*< Row where the span lies. /
100	int col; /*< Leftmost column of the span. /	100	int col; /*< Leftmost column of the span. /
101	int n; /*< Width of the span. /	101	int n; /*< Width of the span. /
102	} fb_pending;	102	} fb_pending;
103		103
104	/** Size of cwrite_buf. */	104	/** Size of cwrite_buf. */
105	#define CWRITE_BUF_SIZE 256	105	#define CWRITE_BUF_SIZE 256
106		106
107	/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */	107	/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */
108	static char cwrite_buf[CWRITE_BUF_SIZE];	108	static char cwrite_buf[CWRITE_BUF_SIZE];
109		109
110	static void fb_putchar(wchar_t c, int row, int col);	110	static void fb_putchar(wchar_t c, int row, int col);
111		111
112		112
113	/** Find unused virtual console.	113	/** Find unused virtual console.
114	*	114	*
115	*/	115	*/
116	static int find_free_connection(void)	116	static int find_free_connection(void)
117	{	117	{
118	int i;	118	int i;
119		119
120	for (i = 0; i < CONSOLE_COUNT; i++) {	120	for (i = 0; i < CONSOLE_COUNT; i++) {
121	if (!connections[i].used)	121	if (!connections[i].used)
122	return i;	122	return i;
123	}	123	}
124	return -1;	124	return -1;
125	}	125	}
126		126
127	static void clrscr(void)	127	static void clrscr(void)
128	{	128	{
129	async_msg_0(fb_info.phone, FB_CLEAR);	129	async_msg_0(fb_info.phone, FB_CLEAR);
130	}	130	}
131		131
132	static void curs_visibility(bool visible)	132	static void curs_visibility(bool visible)
133	{	133	{
134	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);	134	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
135	}	135	}
136		136
137	static void curs_hide_sync(void)	137	static void curs_hide_sync(void)
138	{	138	{
139	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);	139	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
140	}	140	}
141		141
142	static void curs_goto(int row, int col)	142	static void curs_goto(int row, int col)
143	{	143	{
144	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);	144	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
145	}	145	}
146		146
147	static void screen_yield(void)	147	static void screen_yield(void)
148	{	148	{
149	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);	149	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
150	}	150	}
151		151
152	static void screen_reclaim(void)	152	static void screen_reclaim(void)
153	{	153	{
154	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);	154	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
155	}	155	}
156		156
157	static void kbd_yield(void)	157	static void kbd_yield(void)
158	{	158	{
159	ipc_call_sync_0_0(kbd_phone, KBD_YIELD);	159	ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
160	}	160	}
161		161
162	static void kbd_reclaim(void)	162	static void kbd_reclaim(void)
163	{	163	{
164	ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);	164	ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
165	}	165	}
166		166
167	static void set_style(int style)	167	static void set_style(int style)
168	{	168	{
169	async_msg_1(fb_info.phone, FB_SET_STYLE, style);	169	async_msg_1(fb_info.phone, FB_SET_STYLE, style);
170	}	170	}
171		171
172	static void set_color(int fgcolor, int bgcolor, int flags)	172	static void set_color(int fgcolor, int bgcolor, int flags)
173	{	173	{
174	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);	174	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
175	}	175	}
176		176
177	static void set_rgb_color(int fgcolor, int bgcolor)	177	static void set_rgb_color(int fgcolor, int bgcolor)
178	{	178	{
179	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);	179	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
180	}	180	}
181		181
182	static void set_attrs(attrs_t *attrs)	182	static void set_attrs(attrs_t *attrs)
183	{	183	{
184	switch (attrs->t) {	184	switch (attrs->t) {
185	case at_style:	185	case at_style:
186	set_style(attrs->a.s.style);	186	set_style(attrs->a.s.style);
187	break;	187	break;
188		188
189	case at_idx:	189	case at_idx:
190	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,	190	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
191	attrs->a.i.flags);	191	attrs->a.i.flags);
192	break;	192	break;
193		193
194	case at_rgb:	194	case at_rgb:
195	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);	195	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
196	break;	196	break;
197	}	197	}
198	}	198	}
199		199
200	/** Send an area of screenbuffer to the FB driver. */	200	/** Send an area of screenbuffer to the FB driver. */
201	static void fb_update_area(connection_t *conn, int x, int y, int w, int h)	201	static void fb_update_area(connection_t *conn, int x, int y, int w, int h)
202	{	202	{
203	int i, j;	203	int i, j;
204	int rc;	204	int rc;
205	attrs_t *attrs;	205	attrs_t *attrs;
206	keyfield_t *field;	206	keyfield_t *field;
207		207
208	if (interbuffer) {	208	if (interbuffer) {
209	for (j = 0; j < h; j++) {	209	for (j = 0; j < h; j++) {
210	for (i = 0; i < w; i++) {	210	for (i = 0; i < w; i++) {
211	interbuffer[i + j * w] =	211	interbuffer[i + j * w] =
212	*get_field_at(&conn->screenbuffer,	212	*get_field_at(&conn->screenbuffer,
213	x + i, y + j);	213	x + i, y + j);
214	}	214	}
215	}	215	}
216		216
217	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	217	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
218	x, y, w, h);	218	x, y, w, h);
219	} else {	219	} else {
220	rc = ENOTSUP;	220	rc = ENOTSUP;
221	}	221	}
222		222
223	if (rc != 0) {	223	if (rc != 0) {
224	/*	224	/*
225	attrs = &conn->screenbuffer.attrs;	225	attrs = &conn->screenbuffer.attrs;
226		226
227	for (j = 0; j < h; j++) {	227	for (j = 0; j < h; j++) {
228	for (i = 0; i < w; i++) {	228	for (i = 0; i < w; i++) {
229	field = get_field_at(&conn->screenbuffer,	229	field = get_field_at(&conn->screenbuffer,
230	x + i, y + j);	230	x + i, y + j);
231	if (!attrs_same(*attrs, field->attrs))	231	if (!attrs_same(*attrs, field->attrs))
232	set_attrs(&field->attrs);	232	set_attrs(&field->attrs);
233	attrs = &field->attrs;	233	attrs = &field->attrs;
234		234
235	fb_putchar(field->character, y + j, x + i);	235	fb_putchar(field->character, y + j, x + i);
236	}	236	}
237	}*/	237	}*/
238	}	238	}
239	}	239	}
240		240
241	/** Flush pending cells to FB. */	241	/** Flush pending cells to FB. */
242	static void fb_pending_flush(void)	242	static void fb_pending_flush(void)
243	{	243	{
244	screenbuffer_t *scr;	244	screenbuffer_t *scr;
245		245
246	scr = &(connections[active_console].screenbuffer);	246	scr = &(connections[active_console].screenbuffer);
247		247
248	if (fb_pending.n > 0) {	248	if (fb_pending.n > 0) {
249	fb_update_area(&connections[active_console], fb_pending.col,	249	fb_update_area(&connections[active_console], fb_pending.col,
250	fb_pending.row, fb_pending.n, 1);	250	fb_pending.row, fb_pending.n, 1);
251	fb_pending.n = 0;	251	fb_pending.n = 0;
252	}	252	}
253	}	253	}
254		254
255	/** Mark a character cell as changed.	255	/** Mark a character cell as changed.
256	*	256	*
257	* This adds the cell to the pending rowspan if possible. Otherwise	257	* This adds the cell to the pending rowspan if possible. Otherwise
258	* the old span is flushed first.	258	* the old span is flushed first.
259	*/	259	*/
260	static void cell_mark_changed(int row, int col)	260	static void cell_mark_changed(int row, int col)
261	{	261	{
262	if (fb_pending.n != 0) {	262	if (fb_pending.n != 0) {
263	if (row != fb_pending.row \|\|	263	if (row != fb_pending.row \|\|
264	col != fb_pending.col + fb_pending.n) {	264	col != fb_pending.col + fb_pending.n) {
265	fb_pending_flush();	265	fb_pending_flush();
266	}	266	}
267	}	267	}
268		268
269	if (fb_pending.n == 0) {	269	if (fb_pending.n == 0) {
270	fb_pending.row = row;	270	fb_pending.row = row;
271	fb_pending.col = col;	271	fb_pending.col = col;
272	}	272	}
273		273
274	++fb_pending.n;	274	++fb_pending.n;
275	}	275	}
276		276
277		277
278	/** Print a character to the active VC with buffering. */	278	/** Print a character to the active VC with buffering. */
279	static void fb_putchar(wchar_t c, int row, int col)	279	static void fb_putchar(wchar_t c, int row, int col)
280	{	280	{
281	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);	281	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
282	}	282	}
283		283
284	/** Process a character from the client (TTY emulation). */	284	/** Process a character from the client (TTY emulation). */
285	static void write_char(int console, wchar_t ch)	285	static void write_char(int console, wchar_t ch)
286	{	286	{
287	bool flush_cursor = false;	287	bool flush_cursor = false;
288	screenbuffer_t *scr = &(connections[console].screenbuffer);	288	screenbuffer_t *scr = &(connections[console].screenbuffer);
289		289
290	switch (ch) {	290	switch (ch) {
291	case '\n':	291	case '\n':
292	fb_pending_flush();	292	fb_pending_flush();
293	flush_cursor = true;	293	flush_cursor = true;
294	scr->position_y++;	294	scr->position_y++;
295	scr->position_x = 0;	295	scr->position_x = 0;
296	break;	296	break;
297	case '\r':	297	case '\r':
298	break;	298	break;
299	case '\t':	299	case '\t':
300	scr->position_x += 8;	300	scr->position_x += 8;
301	scr->position_x -= scr->position_x % 8;	301	scr->position_x -= scr->position_x % 8;
302	break;	302	break;
303	case '\b':	303	case '\b':
304	if (scr->position_x == 0)	304	if (scr->position_x == 0)
305	break;	305	break;
306	scr->position_x--;	306	scr->position_x--;
307	if (console == active_console)	307	if (console == active_console)
308	cell_mark_changed(scr->position_y, scr->position_x);	308	cell_mark_changed(scr->position_y, scr->position_x);
309	screenbuffer_putchar(scr, ' ');	309	screenbuffer_putchar(scr, ' ');
310	break;	310	break;
311	default:	311	default:
312	if (console == active_console)	312	if (console == active_console)
313	cell_mark_changed(scr->position_y, scr->position_x);	313	cell_mark_changed(scr->position_y, scr->position_x);
314		314
315	screenbuffer_putchar(scr, ch);	315	screenbuffer_putchar(scr, ch);
316	scr->position_x++;	316	scr->position_x++;
317	}	317	}
318		318
319	if (scr->position_x >= scr->size_x) {	319	if (scr->position_x >= scr->size_x) {
320	flush_cursor = true;	320	flush_cursor = true;
321	scr->position_y++;	321	scr->position_y++;
322	}	322	}
323		323
324	if (scr->position_y >= scr->size_y) {	324	if (scr->position_y >= scr->size_y) {
325	fb_pending_flush();	325	fb_pending_flush();
326	scr->position_y = scr->size_y - 1;	326	scr->position_y = scr->size_y - 1;
327	screenbuffer_clear_line(scr, scr->top_line);	327	screenbuffer_clear_line(scr, scr->top_line);
328	scr->top_line = (scr->top_line + 1) % scr->size_y;	328	scr->top_line = (scr->top_line + 1) % scr->size_y;
329	if (console == active_console)	329	if (console == active_console)
330	async_msg_1(fb_info.phone, FB_SCROLL, 1);	330	async_msg_1(fb_info.phone, FB_SCROLL, 1);
331	}	331	}
332		332
333	scr->position_x = scr->position_x % scr->size_x;	333	scr->position_x = scr->position_x % scr->size_x;
334		334
335	if (console == active_console && flush_cursor)	335	if (console == active_console && flush_cursor)
336	curs_goto(scr->position_y, scr->position_x);	336	curs_goto(scr->position_y, scr->position_x);
337	}	337	}
338		338
339	/** Switch to new console */	339	/** Switch to new console */
340	static void change_console(int newcons)	340	static void change_console(int newcons)
341	{	341	{
342	connection_t *conn;	342	connection_t *conn;
343	int i, j, rc;	343	int i, j, rc;
344	keyfield_t *field;	344	keyfield_t *field;
345	attrs_t *attrs;	345	attrs_t *attrs;
346		346
347	if (newcons == active_console)	347	if (newcons == active_console)
348	return;	348	return;
349		349
350	fb_pending_flush();	350	fb_pending_flush();
351		351
352	if (newcons == KERNEL_CONSOLE) {	352	if (newcons == KERNEL_CONSOLE) {
353	async_serialize_start();	353	async_serialize_start();
354	curs_hide_sync();	354	curs_hide_sync();
355	gcons_in_kernel();	355	gcons_in_kernel();
356	screen_yield();	356	screen_yield();
357	kbd_yield();	357	kbd_yield();
358	async_serialize_end();	358	async_serialize_end();
359		359
360		360
361	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {	361	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
362	prev_console = active_console;	362	prev_console = active_console;
363	active_console = KERNEL_CONSOLE;	363	active_console = KERNEL_CONSOLE;
364	} else	364	} else
365	newcons = active_console;	365	newcons = active_console;
366	}	366	}
367		367
368	if (newcons != KERNEL_CONSOLE) {	368	if (newcons != KERNEL_CONSOLE) {
369	async_serialize_start();	369	async_serialize_start();
370		370
371	if (active_console == KERNEL_CONSOLE) {	371	if (active_console == KERNEL_CONSOLE) {
372	screen_reclaim();	372	screen_reclaim();
373	kbd_reclaim();	373	kbd_reclaim();
374	gcons_redraw_console();	374	gcons_redraw_console();
375	}	375	}
376		376
377	active_console = newcons;	377	active_console = newcons;
378	gcons_change_console(newcons);	378	gcons_change_console(newcons);
379	conn = &connections[active_console];	379	conn = &connections[active_console];
380		380
381	set_attrs(&conn->screenbuffer.attrs);	381	set_attrs(&conn->screenbuffer.attrs);
382	curs_visibility(false);	382	curs_visibility(false);
383	if (interbuffer) {	383	if (interbuffer) {
384	for (j = 0; j < conn->screenbuffer.size_y; j++) {	384	for (j = 0; j < conn->screenbuffer.size_y; j++) {
385	for (i = 0; i < conn->screenbuffer.size_x; i++) {	385	for (i = 0; i < conn->screenbuffer.size_x; i++) {
386	unsigned int size_x;	386	unsigned int size_x;
387		387
388	size_x = conn->screenbuffer.size_x;	388	size_x = conn->screenbuffer.size_x;
389	interbuffer[j * size_x + i] =	389	interbuffer[j * size_x + i] =
390	*get_field_at(&conn->screenbuffer, i, j);	390	*get_field_at(&conn->screenbuffer, i, j);
391	}	391	}
392	}	392	}
393	/* This call can preempt, but we are already at the end */	393	/* This call can preempt, but we are already at the end */
394	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	394	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
395	0, 0, conn->screenbuffer.size_x,	395	0, 0, conn->screenbuffer.size_x,
396	conn->screenbuffer.size_y);	396	conn->screenbuffer.size_y);
397	}	397	}
398		398
399	if ((!interbuffer) \|\| (rc != 0)) {	399	if ((!interbuffer) \|\| (rc != 0)) {
400	set_attrs(&conn->screenbuffer.attrs);	400	set_attrs(&conn->screenbuffer.attrs);
401	clrscr();	401	clrscr();
402	attrs = &conn->screenbuffer.attrs;	402	attrs = &conn->screenbuffer.attrs;
403		403
404	for (j = 0; j < conn->screenbuffer.size_y; j++)	404	for (j = 0; j < conn->screenbuffer.size_y; j++)
405	for (i = 0; i < conn->screenbuffer.size_x; i++) {	405	for (i = 0; i < conn->screenbuffer.size_x; i++) {
406	field = get_field_at(&conn->screenbuffer, i, j);	406	field = get_field_at(&conn->screenbuffer, i, j);
407	if (!attrs_same(*attrs, field->attrs))	407	if (!attrs_same(*attrs, field->attrs))
408	set_attrs(&field->attrs);	408	set_attrs(&field->attrs);
409	attrs = &field->attrs;	409	attrs = &field->attrs;
410	if ((field->character == ' ') &&	410	if ((field->character == ' ') &&
411	(attrs_same(field->attrs,	411	(attrs_same(field->attrs,
412	conn->screenbuffer.attrs)))	412	conn->screenbuffer.attrs)))
413	continue;	413	continue;
414		414
415	fb_putchar(field->character, j, i);	415	fb_putchar(field->character, j, i);
416	}	416	}
417	}	417	}
418		418
419	curs_goto(conn->screenbuffer.position_y,	419	curs_goto(conn->screenbuffer.position_y,
420	conn->screenbuffer.position_x);	420	conn->screenbuffer.position_x);
421	curs_visibility(conn->screenbuffer.is_cursor_visible);	421	curs_visibility(conn->screenbuffer.is_cursor_visible);
422		422
423	async_serialize_end();	423	async_serialize_end();
424	}	424	}
425	}	425	}
426		426
427	/** Handler for keyboard */	427	/** Handler for keyboard */
428	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)	428	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
429	{	429	{
430	ipc_callid_t callid;	430	ipc_callid_t callid;
431	ipc_call_t call;	431	ipc_call_t call;
432	int retval;	432	int retval;
433	kbd_event_t ev;	433	kbd_event_t ev;
434	connection_t *conn;	434	connection_t *conn;
435	int newcon;	435	int newcon;
436		436
437	/* Ignore parameters, the connection is alread opened */	437	/* Ignore parameters, the connection is alread opened */
438	while (1) {	438	while (1) {
439	callid = async_get_call(&call);	439	callid = async_get_call(&call);
440	switch (IPC_GET_METHOD(call)) {	440	switch (IPC_GET_METHOD(call)) {
441	case IPC_M_PHONE_HUNGUP:	441	case IPC_M_PHONE_HUNGUP:
442	/* TODO: Handle hangup */	442	/* TODO: Handle hangup */
443	return;	443	return;
444	case KBD_MS_LEFT:	444	case KBD_MS_LEFT:
445	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));	445	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
446	if (newcon != -1)	446	if (newcon != -1)
447	change_console(newcon);	447	change_console(newcon);
448	retval = 0;	448	retval = 0;
449	break;	449	break;
450	case KBD_MS_MOVE:	450	case KBD_MS_MOVE:
451	gcons_mouse_move(IPC_GET_ARG1(call),	451	gcons_mouse_move(IPC_GET_ARG1(call),
452	IPC_GET_ARG2(call));	452	IPC_GET_ARG2(call));
453	retval = 0;	453	retval = 0;
454	break;	454	break;
455	case KBD_EVENT:	455	case KBD_EVENT:
456	/* Got event from keyboard driver. */	456	/* Got event from keyboard driver. */
457	retval = 0;	457	retval = 0;
458	ev.type = IPC_GET_ARG1(call);	458	ev.type = IPC_GET_ARG1(call);
459	ev.key = IPC_GET_ARG2(call);	459	ev.key = IPC_GET_ARG2(call);
460	ev.mods = IPC_GET_ARG3(call);	460	ev.mods = IPC_GET_ARG3(call);
461	ev.c = IPC_GET_ARG4(call);	461	ev.c = IPC_GET_ARG4(call);
462		462
463	/* switch to another virtual console */	463	/* switch to another virtual console */
464		464
465	conn = &connections[active_console];	465	conn = &connections[active_console];
466		466
467	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +	467	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
468	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {	468	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
469	if (ev.key == KC_F12)	469	if (ev.key == KC_F12)
470	change_console(KERNEL_CONSOLE);	470	change_console(KERNEL_CONSOLE);
471	else	471	else
472	change_console(ev.key - KC_F1);	472	change_console(ev.key - KC_F1);
473	break;	473	break;
474	}	474	}
475		475
476	/* if client is awaiting key, send it */	476	/* if client is awaiting key, send it */
477	if (conn->keyrequest_counter > 0) {	477	if (conn->keyrequest_counter > 0) {
478	conn->keyrequest_counter--;	478	conn->keyrequest_counter--;
479	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,	479	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,
480	ev.type, ev.key, ev.mods, ev.c);	480	ev.type, ev.key, ev.mods, ev.c);
481	break;	481	break;
482	}	482	}
483		483
484	keybuffer_push(&conn->keybuffer, &ev);	484	keybuffer_push(&conn->keybuffer, &ev);
485	retval = 0;	485	retval = 0;
486		486
487	break;	487	break;
488	default:	488	default:
489	retval = ENOENT;	489	retval = ENOENT;
490	}	490	}
491	ipc_answer_0(callid, retval);	491	ipc_answer_0(callid, retval);
492	}	492	}
493	}	493	}
494		494
495	/** Handle CONSOLE_WRITE call. */	495	/** Handle CONSOLE_WRITE call. */
496	static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)	496	static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)
497	{	497	{
498	ipc_callid_t callid;	498	ipc_callid_t callid;
499	size_t size;	499	size_t size;
500	wchar_t ch;	500	wchar_t ch;

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(root)/branches/dynload/uspace/srv/console/console.c – Rev 4348 → 4389