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 <keys.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 <sysinfo.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 */
 
 
/** 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 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;
    }
}
 
static void prtchr(char c, int row, int col)
{
    async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
}
 
/** Check key and process special keys.
 *
 *
 */
static void write_char(int console, char key)
{
    screenbuffer_t *scr = &(connections[console].screenbuffer);
   
    switch (key) {
    case '\n':
        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)
            prtchr(' ', scr->position_y, scr->position_x);
        screenbuffer_putchar(scr, ' ');
        break;
    default:   
        if (console == active_console)
            prtchr(key, scr->position_y, scr->position_x);
 
        screenbuffer_putchar(scr, key);
        scr->position_x++;
    }
   
    scr->position_y += (scr->position_x >= scr->size_x);
   
    if (scr->position_y >= scr->size_y) {
        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)
        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;
   
    if (newcons == KERNEL_CONSOLE) {
        async_serialize_start();
        curs_hide_sync();
        gcons_in_kernel();
        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)
            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 (i = 0; i < conn->screenbuffer.size_x; i++)
                for (j = 0; j < conn->screenbuffer.size_y; j++) {
                    unsigned int size_x;
                   
                    size_x = conn->screenbuffer.size_x;
                    interbuffer[i + j * size_x] =
                        *get_field_at(&conn->screenbuffer, i, j);
                }
            /* This call can preempt, but we are already at the end */
            rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);
        }
       
        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;
 
                    prtchr(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;
    int c;
    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_PUSHCHAR:
            /* got key from keyboard driver */
            retval = 0;
            c = IPC_GET_ARG1(call);
            /* switch to another virtual console */
           
            conn = &connections[active_console];
/*
 *          if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 +
 *              CONSOLE_COUNT)) {
 */
            if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) {
                if (c == 0x112)
                    change_console(KERNEL_CONSOLE);
                else
                    change_console(c - 0x101);
                break;
            }
           
            /* if client is awaiting key, send it */
            if (conn->keyrequest_counter > 0) {    
                conn->keyrequest_counter--;
                ipc_answer_1(fifo_pop(conn->keyrequests), EOK,
                    c);
                break;
            }
           
            keybuffer_push(&conn->keybuffer, c);
            retval = 0;
           
            break;
        default:
            retval = ENOENT;
        }
        ipc_answer_0(callid, retval);
    }
}
 
/** 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;
    connection_t *conn;
   
    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);
   
    /* 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;
        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_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:
            if (consnum == active_console)
                async_req_0_0(fb_info.phone, FB_FLUSH);
            break;
        case CONSOLE_SET_STYLE:
            arg1 = IPC_GET_ARG1(call);
            screenbuffer_set_style(&conn->screenbuffer, arg1);
            if (consnum == active_console)
                set_style(arg1);
            break;
        case CONSOLE_SET_COLOR:
            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:
            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:
            arg1 = IPC_GET_ARG1(call);
            conn->screenbuffer.is_cursor_visible = arg1;
            if (consnum == active_console)
                curs_visibility(arg1);
            break;
        case CONSOLE_GETCHAR:
            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;
            }
            int ch;
            keybuffer_pop(&conn->keybuffer, &ch);
            arg1 = ch;
            break;
        }
        ipc_answer_2(callid, EOK, arg1, arg2);
    }
}
 
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(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
    while (kbd_phone < 0) {
        usleep(10000);
        kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
    }
   
    if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
        return -1;
    async_new_connection(phonehash, 0, NULL, keyboard_events);
   
    /* Connect to framebuffer driver */
    fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
    while (fb_info.phone < 0) {
        usleep(10000);
        fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
    }
   
    /* 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);
 
    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 (sysinfo_value("kconsole.present")) {
        int devno = sysinfo_value("kconsole.devno");
        int inr = sysinfo_value("kconsole.inr");
        if (ipc_register_irq(inr, devno, 0, NULL) != 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 3791	Rev 3844
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 <keys.h>	38	#include <keys.h>
39	#include <ipc/fb.h>	39	#include <ipc/fb.h>
40	#include <ipc/services.h>	40	#include <ipc/services.h>
41	#include <errno.h>	41	#include <errno.h>
42	#include <key_buffer.h>	42	#include <key_buffer.h>
43	#include <ipc/console.h>	43	#include <ipc/console.h>
44	#include <unistd.h>	44	#include <unistd.h>
45	#include <async.h>	45	#include <async.h>
46	#include <libadt/fifo.h>	46	#include <libadt/fifo.h>
47	#include <screenbuffer.h>	47	#include <screenbuffer.h>
48	#include <sys/mman.h>	48	#include <sys/mman.h>
49	#include <stdio.h>	49	#include <stdio.h>
50	#include <sysinfo.h>	50	#include <sysinfo.h>
51		51
52	#include "console.h"	52	#include "console.h"
53	#include "gcons.h"	53	#include "gcons.h"
54		54
55	#define MAX_KEYREQUESTS_BUFFERED 32	55	#define MAX_KEYREQUESTS_BUFFERED 32
56		56
57	#define NAME "console"	57	#define NAME "console"
58		58
59	/** Index of currently used virtual console.	59	/** Index of currently used virtual console.
60	*/	60	*/
61	int active_console = 0;	61	int active_console = 0;
62	int prev_console = 0;	62	int prev_console = 0;
63		63
64	/** Information about framebuffer	64	/** Information about framebuffer
65	*/	65	*/
66	struct {	66	struct {
67	int phone; /*< Framebuffer phone /	67	int phone; /*< Framebuffer phone /
68	ipcarg_t rows; /*< Framebuffer rows /	68	ipcarg_t rows; /*< Framebuffer rows /
69	ipcarg_t cols; /*< Framebuffer columns /	69	ipcarg_t cols; /*< Framebuffer columns /
70	} fb_info;	70	} fb_info;
71		71
72	typedef struct {	72	typedef struct {
73	keybuffer_t keybuffer; /*< Buffer for incoming keys. /	73	keybuffer_t keybuffer; /*< Buffer for incoming keys. /
74	/** Buffer for unsatisfied request for keys. */	74	/** Buffer for unsatisfied request for keys. */
75	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,	75	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
76	MAX_KEYREQUESTS_BUFFERED);	76	MAX_KEYREQUESTS_BUFFERED);
77	int keyrequest_counter; /*< Number of requests in buffer. /	77	int keyrequest_counter; /*< Number of requests in buffer. /
78	int client_phone; /*< Phone to connected client. /	78	int client_phone; /*< Phone to connected client. /
79	int used; /**< 1 if this virtual console is	79	int used; /**< 1 if this virtual console is
80	* connected to some client.*/	80	* connected to some client.*/
81	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen	81	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen
82	* contents and related settings. */	82	* contents and related settings. */
83	} connection_t;	83	} connection_t;
84		84
85	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual	85	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
86	* consoles */	86	* consoles */
87	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared	87	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared
88	* with framebufer used for	88	* with framebufer used for
89	* faster virtual console	89	* faster virtual console
90	* switching */	90	* switching */
91		91
92		92
93	/** Find unused virtual console.	93	/** Find unused virtual console.
94	*	94	*
95	*/	95	*/
96	static int find_free_connection(void)	96	static int find_free_connection(void)
97	{	97	{
98	int i;	98	int i;
99		99
100	for (i = 0; i < CONSOLE_COUNT; i++) {	100	for (i = 0; i < CONSOLE_COUNT; i++) {
101	if (!connections[i].used)	101	if (!connections[i].used)
102	return i;	102	return i;
103	}	103	}
104	return -1;	104	return -1;
105	}	105	}
106		106
107	static void clrscr(void)	107	static void clrscr(void)
108	{	108	{
109	async_msg_0(fb_info.phone, FB_CLEAR);	109	async_msg_0(fb_info.phone, FB_CLEAR);
110	}	110	}
111		111
112	static void curs_visibility(bool visible)	112	static void curs_visibility(bool visible)
113	{	113	{
114	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);	114	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
115	}	115	}
116		116
117	static void curs_hide_sync(void)	117	static void curs_hide_sync(void)
118	{	118	{
119	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);	119	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
120	}	120	}
121		121
122	static void curs_goto(int row, int col)	122	static void curs_goto(int row, int col)
123	{	123	{
124	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);	124	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
125	}	125	}
126		126
127	static void set_style(int style)	127	static void set_style(int style)
128	{	128	{
129	async_msg_1(fb_info.phone, FB_SET_STYLE, style);	129	async_msg_1(fb_info.phone, FB_SET_STYLE, style);
130	}	130	}
131		131
132	static void set_color(int fgcolor, int bgcolor, int flags)	132	static void set_color(int fgcolor, int bgcolor, int flags)
133	{	133	{
134	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);	134	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
135	}	135	}
136		136
137	static void set_rgb_color(int fgcolor, int bgcolor)	137	static void set_rgb_color(int fgcolor, int bgcolor)
138	{	138	{
139	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);	139	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
140	}	140	}
141		141
142	static void set_attrs(attrs_t *attrs)	142	static void set_attrs(attrs_t *attrs)
143	{	143	{
144	switch (attrs->t) {	144	switch (attrs->t) {
145	case at_style:	145	case at_style:
146	set_style(attrs->a.s.style);	146	set_style(attrs->a.s.style);
147	break;	147	break;
148		148
149	case at_idx:	149	case at_idx:
150	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,	150	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
151	attrs->a.i.flags);	151	attrs->a.i.flags);
152	break;	152	break;
153		153
154	case at_rgb:	154	case at_rgb:
155	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);	155	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
156	break;	156	break;
157	}	157	}
158	}	158	}
159		159
160	static void prtchr(char c, int row, int col)	160	static void prtchr(char c, int row, int col)
161	{	161	{
162	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);	162	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
163	}	163	}
164		164
165	/** Check key and process special keys.	165	/** Check key and process special keys.
166	*	166	*
167	*	167	*
168	*/	168	*/
169	static void write_char(int console, char key)	169	static void write_char(int console, char key)
170	{	170	{
171	screenbuffer_t *scr = &(connections[console].screenbuffer);	171	screenbuffer_t *scr = &(connections[console].screenbuffer);
172		172
173	switch (key) {	173	switch (key) {
174	case '\n':	174	case '\n':
175	scr->position_y++;	175	scr->position_y++;
176	scr->position_x = 0;	176	scr->position_x = 0;
177	break;	177	break;
178	case '\r':	178	case '\r':
179	break;	179	break;
180	case '\t':	180	case '\t':
181	scr->position_x += 8;	181	scr->position_x += 8;
182	scr->position_x -= scr->position_x % 8;	182	scr->position_x -= scr->position_x % 8;
183	break;	183	break;
184	case '\b':	184	case '\b':
185	if (scr->position_x == 0)	185	if (scr->position_x == 0)
186	break;	186	break;
187	scr->position_x--;	187	scr->position_x--;
188	if (console == active_console)	188	if (console == active_console)
189	prtchr(' ', scr->position_y, scr->position_x);	189	prtchr(' ', scr->position_y, scr->position_x);
190	screenbuffer_putchar(scr, ' ');	190	screenbuffer_putchar(scr, ' ');
191	break;	191	break;
192	default:	192	default:
193	if (console == active_console)	193	if (console == active_console)
194	prtchr(key, scr->position_y, scr->position_x);	194	prtchr(key, scr->position_y, scr->position_x);
195		195
196	screenbuffer_putchar(scr, key);	196	screenbuffer_putchar(scr, key);
197	scr->position_x++;	197	scr->position_x++;
198	}	198	}
199		199
200	scr->position_y += (scr->position_x >= scr->size_x);	200	scr->position_y += (scr->position_x >= scr->size_x);
201		201
202	if (scr->position_y >= scr->size_y) {	202	if (scr->position_y >= scr->size_y) {
203	scr->position_y = scr->size_y - 1;	203	scr->position_y = scr->size_y - 1;
204	screenbuffer_clear_line(scr, scr->top_line);	204	screenbuffer_clear_line(scr, scr->top_line);
205	scr->top_line = (scr->top_line + 1) % scr->size_y;	205	scr->top_line = (scr->top_line + 1) % scr->size_y;
206	if (console == active_console)	206	if (console == active_console)
207	async_msg_1(fb_info.phone, FB_SCROLL, 1);	207	async_msg_1(fb_info.phone, FB_SCROLL, 1);
208	}	208	}
209		209
210	scr->position_x = scr->position_x % scr->size_x;	210	scr->position_x = scr->position_x % scr->size_x;
211		211
212	if (console == active_console)	212	if (console == active_console)
213	curs_goto(scr->position_y, scr->position_x);	213	curs_goto(scr->position_y, scr->position_x);
214		214
215	}	215	}
216		216
217	/** Switch to new console */	217	/** Switch to new console */
218	static void change_console(int newcons)	218	static void change_console(int newcons)
219	{	219	{
220	connection_t *conn;	220	connection_t *conn;
221	int i, j, rc;	221	int i, j, rc;
222	keyfield_t *field;	222	keyfield_t *field;
223	attrs_t *attrs;	223	attrs_t *attrs;
224		224
225	if (newcons == active_console)	225	if (newcons == active_console)
226	return;	226	return;
227		227
228	if (newcons == KERNEL_CONSOLE) {	228	if (newcons == KERNEL_CONSOLE) {
229	async_serialize_start();	229	async_serialize_start();
230	curs_hide_sync();	230	curs_hide_sync();
231	gcons_in_kernel();	231	gcons_in_kernel();
232	async_serialize_end();	232	async_serialize_end();
233		233
234	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {	234	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
235	prev_console = active_console;	235	prev_console = active_console;
236	active_console = KERNEL_CONSOLE;	236	active_console = KERNEL_CONSOLE;
237	} else	237	} else
238	newcons = active_console;	238	newcons = active_console;
239	}	239	}
240		240
241	if (newcons != KERNEL_CONSOLE) {	241	if (newcons != KERNEL_CONSOLE) {
242	async_serialize_start();	242	async_serialize_start();
243		243
244	if (active_console == KERNEL_CONSOLE)	244	if (active_console == KERNEL_CONSOLE)
245	gcons_redraw_console();	245	gcons_redraw_console();
246		246
247	active_console = newcons;	247	active_console = newcons;
248	gcons_change_console(newcons);	248	gcons_change_console(newcons);
249	conn = &connections[active_console];	249	conn = &connections[active_console];
250		250
251	set_attrs(&conn->screenbuffer.attrs);	251	set_attrs(&conn->screenbuffer.attrs);
252	curs_visibility(false);	252	curs_visibility(false);
253	if (interbuffer) {	253	if (interbuffer) {
254	for (i = 0; i < conn->screenbuffer.size_x; i++)	254	for (i = 0; i < conn->screenbuffer.size_x; i++)
255	for (j = 0; j < conn->screenbuffer.size_y; j++) {	255	for (j = 0; j < conn->screenbuffer.size_y; j++) {
256	unsigned int size_x;	256	unsigned int size_x;
257		257
258	size_x = conn->screenbuffer.size_x;	258	size_x = conn->screenbuffer.size_x;
259	interbuffer[i + j * size_x] =	259	interbuffer[i + j * size_x] =
260	*get_field_at(&conn->screenbuffer, i, j);	260	*get_field_at(&conn->screenbuffer, i, j);
261	}	261	}
262	/* This call can preempt, but we are already at the end */	262	/* This call can preempt, but we are already at the end */
263	rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);	263	rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);
264	}	264	}
265		265
266	if ((!interbuffer) \|\| (rc != 0)) {	266	if ((!interbuffer) \|\| (rc != 0)) {
267	set_attrs(&conn->screenbuffer.attrs);	267	set_attrs(&conn->screenbuffer.attrs);
268	clrscr();	268	clrscr();
269	attrs = &conn->screenbuffer.attrs;	269	attrs = &conn->screenbuffer.attrs;
270		270
271	for (j = 0; j < conn->screenbuffer.size_y; j++)	271	for (j = 0; j < conn->screenbuffer.size_y; j++)
272	for (i = 0; i < conn->screenbuffer.size_x; i++) {	272	for (i = 0; i < conn->screenbuffer.size_x; i++) {
273	field = get_field_at(&conn->screenbuffer, i, j);	273	field = get_field_at(&conn->screenbuffer, i, j);
274	if (!attrs_same(*attrs, field->attrs))	274	if (!attrs_same(*attrs, field->attrs))
275	set_attrs(&field->attrs);	275	set_attrs(&field->attrs);
276	attrs = &field->attrs;	276	attrs = &field->attrs;
277	if ((field->character == ' ') &&	277	if ((field->character == ' ') &&
278	(attrs_same(field->attrs,	278	(attrs_same(field->attrs,
279	conn->screenbuffer.attrs)))	279	conn->screenbuffer.attrs)))
280	continue;	280	continue;
281		281
282	prtchr(field->character, j, i);	282	prtchr(field->character, j, i);
283	}	283	}
284	}	284	}
285		285
286	curs_goto(conn->screenbuffer.position_y,	286	curs_goto(conn->screenbuffer.position_y,
287	conn->screenbuffer.position_x);	287	conn->screenbuffer.position_x);
288	curs_visibility(conn->screenbuffer.is_cursor_visible);	288	curs_visibility(conn->screenbuffer.is_cursor_visible);
289		289
290	async_serialize_end();	290	async_serialize_end();
291	}	291	}
292	}	292	}
293		293
294	/** Handler for keyboard */	294	/** Handler for keyboard */
295	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)	295	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
296	{	296	{
297	ipc_callid_t callid;	297	ipc_callid_t callid;
298	ipc_call_t call;	298	ipc_call_t call;
299	int retval;	299	int retval;
300	int c;	300	int c;
301	connection_t *conn;	301	connection_t *conn;
302	int newcon;	302	int newcon;
303		303
304	/* Ignore parameters, the connection is alread opened */	304	/* Ignore parameters, the connection is alread opened */
305	while (1) {	305	while (1) {
306	callid = async_get_call(&call);	306	callid = async_get_call(&call);
307	switch (IPC_GET_METHOD(call)) {	307	switch (IPC_GET_METHOD(call)) {
308	case IPC_M_PHONE_HUNGUP:	308	case IPC_M_PHONE_HUNGUP:
309	/* TODO: Handle hangup */	309	/* TODO: Handle hangup */
310	return;	310	return;
311	case KBD_MS_LEFT:	311	case KBD_MS_LEFT:
312	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));	312	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
313	if (newcon != -1)	313	if (newcon != -1)
314	change_console(newcon);	314	change_console(newcon);
315	retval = 0;	315	retval = 0;
316	break;	316	break;
317	case KBD_MS_MOVE:	317	case KBD_MS_MOVE:
318	gcons_mouse_move(IPC_GET_ARG1(call),	318	gcons_mouse_move(IPC_GET_ARG1(call),
319	IPC_GET_ARG2(call));	319	IPC_GET_ARG2(call));
320	retval = 0;	320	retval = 0;
321	break;	321	break;
322	case KBD_PUSHCHAR:	322	case KBD_PUSHCHAR:
323	/* got key from keyboard driver */	323	/* got key from keyboard driver */
324	retval = 0;	324	retval = 0;
325	c = IPC_GET_ARG1(call);	325	c = IPC_GET_ARG1(call);
326	/* switch to another virtual console */	326	/* switch to another virtual console */
327		327
328	conn = &connections[active_console];	328	conn = &connections[active_console];
329	/*	329	/*
330	* if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 +	330	* if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 +
331	* CONSOLE_COUNT)) {	331	* CONSOLE_COUNT)) {
332	*/	332	*/
333	if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) {	333	if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) {
334	if (c == 0x112)	334	if (c == 0x112)
335	change_console(KERNEL_CONSOLE);	335	change_console(KERNEL_CONSOLE);
336	else	336	else
337	change_console(c - 0x101);	337	change_console(c - 0x101);
338	break;	338	break;
339	}	339	}
340		340
341	/* if client is awaiting key, send it */	341	/* if client is awaiting key, send it */
342	if (conn->keyrequest_counter > 0) {	342	if (conn->keyrequest_counter > 0) {
343	conn->keyrequest_counter--;	343	conn->keyrequest_counter--;
344	ipc_answer_1(fifo_pop(conn->keyrequests), EOK,	344	ipc_answer_1(fifo_pop(conn->keyrequests), EOK,
345	c);	345	c);
346	break;	346	break;
347	}	347	}
348		348
349	keybuffer_push(&conn->keybuffer, c);	349	keybuffer_push(&conn->keybuffer, c);
350	retval = 0;	350	retval = 0;
351		351
352	break;	352	break;
353	default:	353	default:
354	retval = ENOENT;	354	retval = ENOENT;
355	}	355	}
356	ipc_answer_0(callid, retval);	356	ipc_answer_0(callid, retval);
357	}	357	}
358	}	358	}
359		359
360	/** Default thread for new connections */	360	/** Default thread for new connections */
361	static void client_connection(ipc_callid_t iid, ipc_call_t *icall)	361	static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
362	{	362	{
363	ipc_callid_t callid;	363	ipc_callid_t callid;
364	ipc_call_t call;	364	ipc_call_t call;
365	int consnum;	365	int consnum;
366	ipcarg_t arg1, arg2, arg3;	366	ipcarg_t arg1, arg2, arg3;
367	connection_t *conn;	367	connection_t *conn;
368		368
369	if ((consnum = find_free_connection()) == -1) {	369	if ((consnum = find_free_connection()) == -1) {
370	ipc_answer_0(iid, ELIMIT);	370	ipc_answer_0(iid, ELIMIT);
371	return;	371	return;
372	}	372	}
373	conn = &connections[consnum];	373	conn = &connections[consnum];
374	conn->used = 1;	374	conn->used = 1;
375		375
376	async_serialize_start();	376	async_serialize_start();
377	gcons_notify_connect(consnum);	377	gcons_notify_connect(consnum);
378	conn->client_phone = IPC_GET_ARG5(*icall);	378	conn->client_phone = IPC_GET_ARG5(*icall);
379	screenbuffer_clear(&conn->screenbuffer);	379	screenbuffer_clear(&conn->screenbuffer);
380		380
381	/* Accept the connection */	381	/* Accept the connection */
382	ipc_answer_0(iid, EOK);	382	ipc_answer_0(iid, EOK);
383		383
384	while (1) {	384	while (1) {
385	async_serialize_end();	385	async_serialize_end();
386	callid = async_get_call(&call);	386	callid = async_get_call(&call);
387	async_serialize_start();	387	async_serialize_start();
388		388
389	arg1 = 0;	389	arg1 = 0;
390	arg2 = 0;	390	arg2 = 0;
391	switch (IPC_GET_METHOD(call)) {	391	switch (IPC_GET_METHOD(call)) {
392	case IPC_M_PHONE_HUNGUP:	392	case IPC_M_PHONE_HUNGUP:
393	gcons_notify_disconnect(consnum);	393	gcons_notify_disconnect(consnum);
394		394
395	/* Answer all pending requests */	395	/* Answer all pending requests */
396	while (conn->keyrequest_counter > 0) {	396	while (conn->keyrequest_counter > 0) {
397	conn->keyrequest_counter--;	397	conn->keyrequest_counter--;
398	ipc_answer_0(fifo_pop(conn->keyrequests),	398	ipc_answer_0(fifo_pop(conn->keyrequests),
399	ENOENT);	399	ENOENT);
400	break;	400	break;
401	}	401	}
402	conn->used = 0;	402	conn->used = 0;
403	return;	403	return;
404	case CONSOLE_PUTCHAR:	404	case CONSOLE_PUTCHAR:
405	write_char(consnum, IPC_GET_ARG1(call));	405	write_char(consnum, IPC_GET_ARG1(call));
406	gcons_notify_char(consnum);	406	gcons_notify_char(consnum);
407	break;	407	break;
408	case CONSOLE_CLEAR:	408	case CONSOLE_CLEAR:
409	/* Send message to fb */	409	/* Send message to fb */
410	if (consnum == active_console) {	410	if (consnum == active_console) {
411	async_msg_0(fb_info.phone, FB_CLEAR);	411	async_msg_0(fb_info.phone, FB_CLEAR);
412	}	412	}
413		413
414	screenbuffer_clear(&conn->screenbuffer);	414	screenbuffer_clear(&conn->screenbuffer);
415		415
416	break;	416	break;
417	case CONSOLE_GOTO:	417	case CONSOLE_GOTO:
418	screenbuffer_goto(&conn->screenbuffer,	418	screenbuffer_goto(&conn->screenbuffer,
419	IPC_GET_ARG2(call), IPC_GET_ARG1(call));	419	IPC_GET_ARG2(call), IPC_GET_ARG1(call));
420	if (consnum == active_console)	420	if (consnum == active_console)
421	curs_goto(IPC_GET_ARG1(call),	421	curs_goto(IPC_GET_ARG1(call),
422	IPC_GET_ARG2(call));	422	IPC_GET_ARG2(call));
423	break;	423	break;
424	case CONSOLE_GETSIZE:	424	case CONSOLE_GETSIZE:
425	arg1 = fb_info.rows;	425	arg1 = fb_info.rows;
426	arg2 = fb_info.cols;	426	arg2 = fb_info.cols;
427	break;	427	break;
428	case CONSOLE_FLUSH:	428	case CONSOLE_FLUSH:
429	if (consnum == active_console)	429	if (consnum == active_console)
430	async_req_0_0(fb_info.phone, FB_FLUSH);	430	async_req_0_0(fb_info.phone, FB_FLUSH);
431	break;	431	break;
432	case CONSOLE_SET_STYLE:	432	case CONSOLE_SET_STYLE:
433	arg1 = IPC_GET_ARG1(call);	433	arg1 = IPC_GET_ARG1(call);
434	screenbuffer_set_style(&conn->screenbuffer, arg1);	434	screenbuffer_set_style(&conn->screenbuffer, arg1);
435	if (consnum == active_console)	435	if (consnum == active_console)
436	set_style(arg1);	436	set_style(arg1);
437	break;	437	break;
438	case CONSOLE_SET_COLOR:	438	case CONSOLE_SET_COLOR:
439	arg1 = IPC_GET_ARG1(call);	439	arg1 = IPC_GET_ARG1(call);
440	arg2 = IPC_GET_ARG2(call);	440	arg2 = IPC_GET_ARG2(call);
441	arg3 = IPC_GET_ARG3(call);	441	arg3 = IPC_GET_ARG3(call);
442	screenbuffer_set_color(&conn->screenbuffer, arg1,	442	screenbuffer_set_color(&conn->screenbuffer, arg1,
443	arg2, arg3);	443	arg2, arg3);
444	if (consnum == active_console)	444	if (consnum == active_console)
445	set_color(arg1, arg2, arg3);	445	set_color(arg1, arg2, arg3);
446	break;	446	break;
447	case CONSOLE_SET_RGB_COLOR:	447	case CONSOLE_SET_RGB_COLOR:
448	arg1 = IPC_GET_ARG1(call);	448	arg1 = IPC_GET_ARG1(call);
449	arg2 = IPC_GET_ARG2(call);	449	arg2 = IPC_GET_ARG2(call);
450	screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,	450	screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,
451	arg2);	451	arg2);
452	if (consnum == active_console)	452	if (consnum == active_console)
453	set_rgb_color(arg1, arg2);	453	set_rgb_color(arg1, arg2);
454	break;	454	break;
455	case CONSOLE_CURSOR_VISIBILITY:	455	case CONSOLE_CURSOR_VISIBILITY:
456	arg1 = IPC_GET_ARG1(call);	456	arg1 = IPC_GET_ARG1(call);
457	conn->screenbuffer.is_cursor_visible = arg1;	457	conn->screenbuffer.is_cursor_visible = arg1;
458	if (consnum == active_console)	458	if (consnum == active_console)
459	curs_visibility(arg1);	459	curs_visibility(arg1);
460	break;	460	break;
461	case CONSOLE_GETCHAR:	461	case CONSOLE_GETCHAR:
462	if (keybuffer_empty(&conn->keybuffer)) {	462	if (keybuffer_empty(&conn->keybuffer)) {
463	/* buffer is empty -> store request */	463	/* buffer is empty -> store request */
464	if (conn->keyrequest_counter <	464	if (conn->keyrequest_counter <
465	MAX_KEYREQUESTS_BUFFERED) {	465	MAX_KEYREQUESTS_BUFFERED) {
466	fifo_push(conn->keyrequests, callid);	466	fifo_push(conn->keyrequests, callid);
467	conn->keyrequest_counter++;	467	conn->keyrequest_counter++;
468	} else {	468	} else {
469	/*	469	/*
470	* No key available and too many	470	* No key available and too many
471	* requests => fail.	471	* requests => fail.
472	*/	472	*/
473	ipc_answer_0(callid, ELIMIT);	473	ipc_answer_0(callid, ELIMIT);
474	}	474	}
475	continue;	475	continue;
476	}	476	}
477	int ch;	477	int ch;
478	keybuffer_pop(&conn->keybuffer, &ch);	478	keybuffer_pop(&conn->keybuffer, &ch);
479	arg1 = ch;	479	arg1 = ch;
480	break;	480	break;
481	}	481	}
482	ipc_answer_2(callid, EOK, arg1, arg2);	482	ipc_answer_2(callid, EOK, arg1, arg2);
483	}	483	}
484	}	484	}
485		485
486	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)	486	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
487	{	487	{
488	change_console(prev_console);	488	change_console(prev_console);
489	}	489	}
490		490
491	int main(int argc, char *argv[])	491	int main(int argc, char *argv[])
492	{	492	{
493	printf(NAME ": HelenOS Console service\n");	493	printf(NAME ": HelenOS Console service\n");
494		494
495	ipcarg_t phonehash;	495	ipcarg_t phonehash;
496	int kbd_phone;	496	int kbd_phone;
497	size_t ib_size;	497	size_t ib_size;
498	int i;	498	int i;
499		499
500	async_set_client_connection(client_connection);	500	async_set_client_connection(client_connection);

Subversion Repositories HelenOS

(root)/trunk/uspace/srv/console/console.c – Rev 3791 → 3844