WebSVN – HelenOS – Diff – /trunk/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;
 
/** 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_grab(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_GRAB);
}
 
static void screen_relinquish(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RELINQUISH);
}
 
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_relinquish();
        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_grab();
            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);
    }
 
    if (size > CWRITE_BUF_SIZE)
        size = CWRITE_BUF_SIZE;
 
    (void) ipc_data_write_finalize(callid, cwrite_buf, size);
 
    off = 0;
    while (off < size) {
        ch = str_decode(cwrite_buf, &off, size);
        write_char(consnum, ch);
    }
 
    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:
            cons_write(consnum, callid, &call);
            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;
    int kbd_phone;
    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 4321	Rev 4325
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	/** Information about framebuffer */	67	/** Information about framebuffer */
68	struct {	68	struct {
69	int phone; /*< Framebuffer phone /	69	int phone; /*< Framebuffer phone /
70	ipcarg_t rows; /*< Framebuffer rows /	70	ipcarg_t rows; /*< Framebuffer rows /
71	ipcarg_t cols; /*< Framebuffer columns /	71	ipcarg_t cols; /*< Framebuffer columns /
72	} fb_info;	72	} fb_info;
73		73
74	typedef struct {	74	typedef struct {
75	keybuffer_t keybuffer; /*< Buffer for incoming keys. /	75	keybuffer_t keybuffer; /*< Buffer for incoming keys. /
76	/** Buffer for unsatisfied request for keys. */	76	/** Buffer for unsatisfied request for keys. */
77	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,	77	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
78	MAX_KEYREQUESTS_BUFFERED);	78	MAX_KEYREQUESTS_BUFFERED);
79	int keyrequest_counter; /*< Number of requests in buffer. /	79	int keyrequest_counter; /*< Number of requests in buffer. /
80	int client_phone; /*< Phone to connected client. /	80	int client_phone; /*< Phone to connected client. /
81	int used; /**< 1 if this virtual console is	81	int used; /**< 1 if this virtual console is
82	* connected to some client.*/	82	* connected to some client.*/
83	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen	83	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen
84	* contents and related settings. */	84	* contents and related settings. */
85	} connection_t;	85	} connection_t;
86		86
87	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual	87	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
88	* consoles */	88	* consoles */
89	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared	89	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared
90	* with framebufer used for	90	* with framebufer used for
91	* faster virtual console	91	* faster virtual console
92	* switching */	92	* switching */
93		93
94	/** Information on row-span yet unsent to FB driver. */	94	/** Information on row-span yet unsent to FB driver. */
95	struct {	95	struct {
96	int row; /*< Row where the span lies. /	96	int row; /*< Row where the span lies. /
97	int col; /*< Leftmost column of the span. /	97	int col; /*< Leftmost column of the span. /
98	int n; /*< Width of the span. /	98	int n; /*< Width of the span. /
99	} fb_pending;	99	} fb_pending;
100		100
101	/** Size of cwrite_buf. */	101	/** Size of cwrite_buf. */
102	#define CWRITE_BUF_SIZE 256	102	#define CWRITE_BUF_SIZE 256
103		103
104	/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */	104	/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */
105	static char cwrite_buf[CWRITE_BUF_SIZE];	105	static char cwrite_buf[CWRITE_BUF_SIZE];
106		106
107	static void fb_putchar(wchar_t c, int row, int col);	107	static void fb_putchar(wchar_t c, int row, int col);
108		108
109		109
110	/** Find unused virtual console.	110	/** Find unused virtual console.
111	*	111	*
112	*/	112	*/
113	static int find_free_connection(void)	113	static int find_free_connection(void)
114	{	114	{
115	int i;	115	int i;
116		116
117	for (i = 0; i < CONSOLE_COUNT; i++) {	117	for (i = 0; i < CONSOLE_COUNT; i++) {
118	if (!connections[i].used)	118	if (!connections[i].used)
119	return i;	119	return i;
120	}	120	}
121	return -1;	121	return -1;
122	}	122	}
123		123
124	static void clrscr(void)	124	static void clrscr(void)
125	{	125	{
126	async_msg_0(fb_info.phone, FB_CLEAR);	126	async_msg_0(fb_info.phone, FB_CLEAR);
127	}	127	}
128		128
129	static void curs_visibility(bool visible)	129	static void curs_visibility(bool visible)
130	{	130	{
131	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);	131	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
132	}	132	}
133		133
134	static void curs_hide_sync(void)	134	static void curs_hide_sync(void)
135	{	135	{
136	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);	136	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
137	}	137	}
138		138
139	static void curs_goto(int row, int col)	139	static void curs_goto(int row, int col)
140	{	140	{
141	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);	141	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
142	}	142	}
143		143
-		144	static void screen_grab(void)
-		145	{
-		146	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_GRAB);
-		147	}
-		148
-		149	static void screen_relinquish(void)
-		150	{
-		151	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RELINQUISH);
-		152	}
-		153
144	static void set_style(int style)	154	static void set_style(int style)
145	{	155	{
146	async_msg_1(fb_info.phone, FB_SET_STYLE, style);	156	async_msg_1(fb_info.phone, FB_SET_STYLE, style);
147	}	157	}
148		158
149	static void set_color(int fgcolor, int bgcolor, int flags)	159	static void set_color(int fgcolor, int bgcolor, int flags)
150	{	160	{
151	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);	161	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
152	}	162	}
153		163
154	static void set_rgb_color(int fgcolor, int bgcolor)	164	static void set_rgb_color(int fgcolor, int bgcolor)
155	{	165	{
156	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);	166	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
157	}	167	}
158		168
159	static void set_attrs(attrs_t *attrs)	169	static void set_attrs(attrs_t *attrs)
160	{	170	{
161	switch (attrs->t) {	171	switch (attrs->t) {
162	case at_style:	172	case at_style:
163	set_style(attrs->a.s.style);	173	set_style(attrs->a.s.style);
164	break;	174	break;
165		175
166	case at_idx:	176	case at_idx:
167	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,	177	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
168	attrs->a.i.flags);	178	attrs->a.i.flags);
169	break;	179	break;
170		180
171	case at_rgb:	181	case at_rgb:
172	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);	182	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
173	break;	183	break;
174	}	184	}
175	}	185	}
176		186
177	/** Send an area of screenbuffer to the FB driver. */	187	/** Send an area of screenbuffer to the FB driver. */
178	static void fb_update_area(connection_t *conn, int x, int y, int w, int h)	188	static void fb_update_area(connection_t *conn, int x, int y, int w, int h)
179	{	189	{
180	int i, j;	190	int i, j;
181	int rc;	191	int rc;
182	attrs_t *attrs;	192	attrs_t *attrs;
183	keyfield_t *field;	193	keyfield_t *field;
184		194
185	if (interbuffer) {	195	if (interbuffer) {
186	for (j = 0; j < h; j++) {	196	for (j = 0; j < h; j++) {
187	for (i = 0; i < w; i++) {	197	for (i = 0; i < w; i++) {
188	interbuffer[i + j * w] =	198	interbuffer[i + j * w] =
189	*get_field_at(&conn->screenbuffer,	199	*get_field_at(&conn->screenbuffer,
190	x + i, y + j);	200	x + i, y + j);
191	}	201	}
192	}	202	}
193		203
194	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	204	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
195	x, y, w, h);	205	x, y, w, h);
196	} else {	206	} else {
197	rc = ENOTSUP;	207	rc = ENOTSUP;
198	}	208	}
199		209
200	if (rc != 0) {	210	if (rc != 0) {
201	/*	211	/*
202	attrs = &conn->screenbuffer.attrs;	212	attrs = &conn->screenbuffer.attrs;
203		213
204	for (j = 0; j < h; j++) {	214	for (j = 0; j < h; j++) {
205	for (i = 0; i < w; i++) {	215	for (i = 0; i < w; i++) {
206	field = get_field_at(&conn->screenbuffer,	216	field = get_field_at(&conn->screenbuffer,
207	x + i, y + j);	217	x + i, y + j);
208	if (!attrs_same(*attrs, field->attrs))	218	if (!attrs_same(*attrs, field->attrs))
209	set_attrs(&field->attrs);	219	set_attrs(&field->attrs);
210	attrs = &field->attrs;	220	attrs = &field->attrs;
211		221
212	fb_putchar(field->character, y + j, x + i);	222	fb_putchar(field->character, y + j, x + i);
213	}	223	}
214	}*/	224	}*/
215	}	225	}
216	}	226	}
217		227
218	/** Flush pending cells to FB. */	228	/** Flush pending cells to FB. */
219	static void fb_pending_flush(void)	229	static void fb_pending_flush(void)
220	{	230	{
221	screenbuffer_t *scr;	231	screenbuffer_t *scr;
222		232
223	scr = &(connections[active_console].screenbuffer);	233	scr = &(connections[active_console].screenbuffer);
224		234
225	if (fb_pending.n > 0) {	235	if (fb_pending.n > 0) {
226	fb_update_area(&connections[active_console], fb_pending.col,	236	fb_update_area(&connections[active_console], fb_pending.col,
227	fb_pending.row, fb_pending.n, 1);	237	fb_pending.row, fb_pending.n, 1);
228	fb_pending.n = 0;	238	fb_pending.n = 0;
229	}	239	}
230	}	240	}
231		241
232	/** Mark a character cell as changed.	242	/** Mark a character cell as changed.
233	*	243	*
234	* This adds the cell to the pending rowspan if possible. Otherwise	244	* This adds the cell to the pending rowspan if possible. Otherwise
235	* the old span is flushed first.	245	* the old span is flushed first.
236	*/	246	*/
237	static void cell_mark_changed(int row, int col)	247	static void cell_mark_changed(int row, int col)
238	{	248	{
239	if (fb_pending.n != 0) {	249	if (fb_pending.n != 0) {
240	if (row != fb_pending.row \|\|	250	if (row != fb_pending.row \|\|
241	col != fb_pending.col + fb_pending.n) {	251	col != fb_pending.col + fb_pending.n) {
242	fb_pending_flush();	252	fb_pending_flush();
243	}	253	}
244	}	254	}
245		255
246	if (fb_pending.n == 0) {	256	if (fb_pending.n == 0) {
247	fb_pending.row = row;	257	fb_pending.row = row;
248	fb_pending.col = col;	258	fb_pending.col = col;
249	}	259	}
250		260
251	++fb_pending.n;	261	++fb_pending.n;
252	}	262	}
253		263
254		264
255	/** Print a character to the active VC with buffering. */	265	/** Print a character to the active VC with buffering. */
256	static void fb_putchar(wchar_t c, int row, int col)	266	static void fb_putchar(wchar_t c, int row, int col)
257	{	267	{
258	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);	268	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
259	}	269	}
260		270
261	/** Process a character from the client (TTY emulation). */	271	/** Process a character from the client (TTY emulation). */
262	static void write_char(int console, wchar_t ch)	272	static void write_char(int console, wchar_t ch)
263	{	273	{
264	bool flush_cursor = false;	274	bool flush_cursor = false;
265	screenbuffer_t *scr = &(connections[console].screenbuffer);	275	screenbuffer_t *scr = &(connections[console].screenbuffer);
266		276
267	switch (ch) {	277	switch (ch) {
268	case '\n':	278	case '\n':
269	fb_pending_flush();	279	fb_pending_flush();
270	flush_cursor = true;	280	flush_cursor = true;
271	scr->position_y++;	281	scr->position_y++;
272	scr->position_x = 0;	282	scr->position_x = 0;
273	break;	283	break;
274	case '\r':	284	case '\r':
275	break;	285	break;
276	case '\t':	286	case '\t':
277	scr->position_x += 8;	287	scr->position_x += 8;
278	scr->position_x -= scr->position_x % 8;	288	scr->position_x -= scr->position_x % 8;
279	break;	289	break;
280	case '\b':	290	case '\b':
281	if (scr->position_x == 0)	291	if (scr->position_x == 0)
282	break;	292	break;
283	scr->position_x--;	293	scr->position_x--;
284	if (console == active_console)	294	if (console == active_console)
285	cell_mark_changed(scr->position_y, scr->position_x);	295	cell_mark_changed(scr->position_y, scr->position_x);
286	screenbuffer_putchar(scr, ' ');	296	screenbuffer_putchar(scr, ' ');
287	break;	297	break;
288	default:	298	default:
289	if (console == active_console)	299	if (console == active_console)
290	cell_mark_changed(scr->position_y, scr->position_x);	300	cell_mark_changed(scr->position_y, scr->position_x);
291		301
292	screenbuffer_putchar(scr, ch);	302	screenbuffer_putchar(scr, ch);
293	scr->position_x++;	303	scr->position_x++;
294	}	304	}
295		305
296	if (scr->position_x >= scr->size_x) {	306	if (scr->position_x >= scr->size_x) {
297	flush_cursor = true;	307	flush_cursor = true;
298	scr->position_y++;	308	scr->position_y++;
299	}	309	}
300		310
301	if (scr->position_y >= scr->size_y) {	311	if (scr->position_y >= scr->size_y) {
302	fb_pending_flush();	312	fb_pending_flush();
303	scr->position_y = scr->size_y - 1;	313	scr->position_y = scr->size_y - 1;
304	screenbuffer_clear_line(scr, scr->top_line);	314	screenbuffer_clear_line(scr, scr->top_line);
305	scr->top_line = (scr->top_line + 1) % scr->size_y;	315	scr->top_line = (scr->top_line + 1) % scr->size_y;
306	if (console == active_console)	316	if (console == active_console)
307	async_msg_1(fb_info.phone, FB_SCROLL, 1);	317	async_msg_1(fb_info.phone, FB_SCROLL, 1);
308	}	318	}
309		319
310	scr->position_x = scr->position_x % scr->size_x;	320	scr->position_x = scr->position_x % scr->size_x;
311		321
312	if (console == active_console && flush_cursor)	322	if (console == active_console && flush_cursor)
313	curs_goto(scr->position_y, scr->position_x);	323	curs_goto(scr->position_y, scr->position_x);
314	}	324	}
315		325
316	/** Switch to new console */	326	/** Switch to new console */
317	static void change_console(int newcons)	327	static void change_console(int newcons)
318	{	328	{
319	connection_t *conn;	329	connection_t *conn;
320	int i, j, rc;	330	int i, j, rc;
321	keyfield_t *field;	331	keyfield_t *field;
322	attrs_t *attrs;	332	attrs_t *attrs;
323		333
324	if (newcons == active_console)	334	if (newcons == active_console)
325	return;	335	return;
326		336
327	fb_pending_flush();	337	fb_pending_flush();
328		338
329	if (newcons == KERNEL_CONSOLE) {	339	if (newcons == KERNEL_CONSOLE) {
330	async_serialize_start();	340	async_serialize_start();
331	curs_hide_sync();	341	curs_hide_sync();
332	gcons_in_kernel();	342	gcons_in_kernel();
-		343	screen_relinquish();
333	async_serialize_end();	344	async_serialize_end();
-		345
334		346
335	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {	347	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
336	prev_console = active_console;	348	prev_console = active_console;
337	active_console = KERNEL_CONSOLE;	349	active_console = KERNEL_CONSOLE;
338	} else	350	} else
339	newcons = active_console;	351	newcons = active_console;
340	}	352	}
341		353
342	if (newcons != KERNEL_CONSOLE) {	354	if (newcons != KERNEL_CONSOLE) {
343	async_serialize_start();	355	async_serialize_start();
344		356
345	if (active_console == KERNEL_CONSOLE)	357	if (active_console == KERNEL_CONSOLE) {
-		358	screen_grab();
346	gcons_redraw_console();	359	gcons_redraw_console();
-		360	}
347		361
348	active_console = newcons;	362	active_console = newcons;
349	gcons_change_console(newcons);	363	gcons_change_console(newcons);
350	conn = &connections[active_console];	364	conn = &connections[active_console];
351		365
352	set_attrs(&conn->screenbuffer.attrs);	366	set_attrs(&conn->screenbuffer.attrs);
353	curs_visibility(false);	367	curs_visibility(false);
354	if (interbuffer) {	368	if (interbuffer) {
355	for (j = 0; j < conn->screenbuffer.size_y; j++) {	369	for (j = 0; j < conn->screenbuffer.size_y; j++) {
356	for (i = 0; i < conn->screenbuffer.size_x; i++) {	370	for (i = 0; i < conn->screenbuffer.size_x; i++) {
357	unsigned int size_x;	371	unsigned int size_x;
358		372
359	size_x = conn->screenbuffer.size_x;	373	size_x = conn->screenbuffer.size_x;
360	interbuffer[j * size_x + i] =	374	interbuffer[j * size_x + i] =
361	*get_field_at(&conn->screenbuffer, i, j);	375	*get_field_at(&conn->screenbuffer, i, j);
362	}	376	}
363	}	377	}
364	/* This call can preempt, but we are already at the end */	378	/* This call can preempt, but we are already at the end */
365	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	379	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
366	0, 0, conn->screenbuffer.size_x,	380	0, 0, conn->screenbuffer.size_x,
367	conn->screenbuffer.size_y);	381	conn->screenbuffer.size_y);
368	}	382	}
369		383
370	if ((!interbuffer) \|\| (rc != 0)) {	384	if ((!interbuffer) \|\| (rc != 0)) {
371	set_attrs(&conn->screenbuffer.attrs);	385	set_attrs(&conn->screenbuffer.attrs);
372	clrscr();	386	clrscr();
373	attrs = &conn->screenbuffer.attrs;	387	attrs = &conn->screenbuffer.attrs;
374		388
375	for (j = 0; j < conn->screenbuffer.size_y; j++)	389	for (j = 0; j < conn->screenbuffer.size_y; j++)
376	for (i = 0; i < conn->screenbuffer.size_x; i++) {	390	for (i = 0; i < conn->screenbuffer.size_x; i++) {
377	field = get_field_at(&conn->screenbuffer, i, j);	391	field = get_field_at(&conn->screenbuffer, i, j);
378	if (!attrs_same(*attrs, field->attrs))	392	if (!attrs_same(*attrs, field->attrs))
379	set_attrs(&field->attrs);	393	set_attrs(&field->attrs);
380	attrs = &field->attrs;	394	attrs = &field->attrs;
381	if ((field->character == ' ') &&	395	if ((field->character == ' ') &&
382	(attrs_same(field->attrs,	396	(attrs_same(field->attrs,
383	conn->screenbuffer.attrs)))	397	conn->screenbuffer.attrs)))
384	continue;	398	continue;
385		399
386	fb_putchar(field->character, j, i);	400	fb_putchar(field->character, j, i);
387	}	401	}
388	}	402	}
389		403
390	curs_goto(conn->screenbuffer.position_y,	404	curs_goto(conn->screenbuffer.position_y,
391	conn->screenbuffer.position_x);	405	conn->screenbuffer.position_x);
392	curs_visibility(conn->screenbuffer.is_cursor_visible);	406	curs_visibility(conn->screenbuffer.is_cursor_visible);
393		407
394	async_serialize_end();	408	async_serialize_end();
395	}	409	}
396	}	410	}
397		411
398	/** Handler for keyboard */	412	/** Handler for keyboard */
399	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)	413	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
400	{	414	{
401	ipc_callid_t callid;	415	ipc_callid_t callid;
402	ipc_call_t call;	416	ipc_call_t call;
403	int retval;	417	int retval;
404	kbd_event_t ev;	418	kbd_event_t ev;
405	connection_t *conn;	419	connection_t *conn;
406	int newcon;	420	int newcon;
407		421
408	/* Ignore parameters, the connection is alread opened */	422	/* Ignore parameters, the connection is alread opened */
409	while (1) {	423	while (1) {
410	callid = async_get_call(&call);	424	callid = async_get_call(&call);
411	switch (IPC_GET_METHOD(call)) {	425	switch (IPC_GET_METHOD(call)) {
412	case IPC_M_PHONE_HUNGUP:	426	case IPC_M_PHONE_HUNGUP:
413	/* TODO: Handle hangup */	427	/* TODO: Handle hangup */
414	return;	428	return;
415	case KBD_MS_LEFT:	429	case KBD_MS_LEFT:
416	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));	430	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
417	if (newcon != -1)	431	if (newcon != -1)
418	change_console(newcon);	432	change_console(newcon);
419	retval = 0;	433	retval = 0;
420	break;	434	break;
421	case KBD_MS_MOVE:	435	case KBD_MS_MOVE:
422	gcons_mouse_move(IPC_GET_ARG1(call),	436	gcons_mouse_move(IPC_GET_ARG1(call),
423	IPC_GET_ARG2(call));	437	IPC_GET_ARG2(call));
424	retval = 0;	438	retval = 0;
425	break;	439	break;
426	case KBD_EVENT:	440	case KBD_EVENT:
427	/* Got event from keyboard driver. */	441	/* Got event from keyboard driver. */
428	retval = 0;	442	retval = 0;
429	ev.type = IPC_GET_ARG1(call);	443	ev.type = IPC_GET_ARG1(call);
430	ev.key = IPC_GET_ARG2(call);	444	ev.key = IPC_GET_ARG2(call);
431	ev.mods = IPC_GET_ARG3(call);	445	ev.mods = IPC_GET_ARG3(call);
432	ev.c = IPC_GET_ARG4(call);	446	ev.c = IPC_GET_ARG4(call);
433		447
434	/* switch to another virtual console */	448	/* switch to another virtual console */
435		449
436	conn = &connections[active_console];	450	conn = &connections[active_console];
437		451
438	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +	452	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
439	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {	453	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
440	if (ev.key == KC_F12)	454	if (ev.key == KC_F12)
441	change_console(KERNEL_CONSOLE);	455	change_console(KERNEL_CONSOLE);
442	else	456	else
443	change_console(ev.key - KC_F1);	457	change_console(ev.key - KC_F1);
444	break;	458	break;
445	}	459	}
446		460
447	/* if client is awaiting key, send it */	461	/* if client is awaiting key, send it */
448	if (conn->keyrequest_counter > 0) {	462	if (conn->keyrequest_counter > 0) {
449	conn->keyrequest_counter--;	463	conn->keyrequest_counter--;
450	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,	464	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,
451	ev.type, ev.key, ev.mods, ev.c);	465	ev.type, ev.key, ev.mods, ev.c);
452	break;	466	break;
453	}	467	}
454		468
455	keybuffer_push(&conn->keybuffer, &ev);	469	keybuffer_push(&conn->keybuffer, &ev);
456	retval = 0;	470	retval = 0;
457		471
458	break;	472	break;
459	default:	473	default:
460	retval = ENOENT;	474	retval = ENOENT;
461	}	475	}
462	ipc_answer_0(callid, retval);	476	ipc_answer_0(callid, retval);
463	}	477	}
464	}	478	}
465		479
466	/** Handle CONSOLE_WRITE call. */	480	/** Handle CONSOLE_WRITE call. */
467	static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)	481	static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)
468	{	482	{
469	ipc_callid_t callid;	483	ipc_callid_t callid;
470	size_t size;	484	size_t size;
471	wchar_t ch;	485	wchar_t ch;
472	size_t off;	486	size_t off;
473		487
474	if (!ipc_data_write_receive(&callid, &size)) {	488	if (!ipc_data_write_receive(&callid, &size)) {
475	ipc_answer_0(callid, EINVAL);	489	ipc_answer_0(callid, EINVAL);
476	ipc_answer_0(rid, EINVAL);	490	ipc_answer_0(rid, EINVAL);
477	}	491	}
478		492
479	if (size > CWRITE_BUF_SIZE)	493	if (size > CWRITE_BUF_SIZE)
480	size = CWRITE_BUF_SIZE;	494	size = CWRITE_BUF_SIZE;
481		495
482	(void) ipc_data_write_finalize(callid, cwrite_buf, size);	496	(void) ipc_data_write_finalize(callid, cwrite_buf, size);
483		497
484	off = 0;	498	off = 0;
485	while (off < size) {	499	while (off < size) {
486	ch = str_decode(cwrite_buf, &off, size);	500	ch = str_decode(cwrite_buf, &off, size);

Subversion Repositories HelenOS

(root)/trunk/uspace/srv/console/console.c – Rev 4321 → 4325