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


/*
 * Copyright (c) 2006 Josef Cejka
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup console
 * @{
 */
/** @file
 */
 
#include <libc.h>
#include <fb.h>
#include <ipc/ipc.h>
#include <kbd.h>
#include <kbd/keycode.h>
#include <ipc/fb.h>
#include <ipc/services.h>
#include <errno.h>
#include <key_buffer.h>
#include <ipc/console.h>
#include <unistd.h>
#include <async.h>
#include <libadt/fifo.h>
#include <screenbuffer.h>
#include <sys/mman.h>
#include <stdio.h>
#include <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;
    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)) {
                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);
    }
}
 
/** 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;
   
    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;
        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_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_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;
        }
        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);
 
    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 4343	Rev 4345
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 <sysinfo.h>	51	#include <sysinfo.h>
52		52
53	#include "console.h"	53	#include "console.h"
54	#include "gcons.h"	54	#include "gcons.h"
55		55
56	#define MAX_KEYREQUESTS_BUFFERED 32	56	#define MAX_KEYREQUESTS_BUFFERED 32
57		57
58	#define NAME "console"	58	#define NAME "console"
59		59
60	/** Index of currently used virtual console.	60	/** Index of currently used virtual console.
61	*/	61	*/
62	int active_console = 0;	62	int active_console = 0;
63	int prev_console = 0;	63	int prev_console = 0;
64		64
65	/** Information about framebuffer	65	/** Information about framebuffer
66	*/	66	*/
67	struct {	67	struct {
68	int phone; /*< Framebuffer phone /	68	int phone; /*< Framebuffer phone /
69	ipcarg_t rows; /*< Framebuffer rows /	69	ipcarg_t rows; /*< Framebuffer rows /
70	ipcarg_t cols; /*< Framebuffer columns /	70	ipcarg_t cols; /*< Framebuffer columns /
71	} fb_info;	71	} fb_info;
72		72
73	typedef struct {	73	typedef struct {
74	keybuffer_t keybuffer; /*< Buffer for incoming keys. /	74	keybuffer_t keybuffer; /*< Buffer for incoming keys. /
75	/** Buffer for unsatisfied request for keys. */	75	/** Buffer for unsatisfied request for keys. */
76	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,	76	FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
77	MAX_KEYREQUESTS_BUFFERED);	77	MAX_KEYREQUESTS_BUFFERED);
78	int keyrequest_counter; /*< Number of requests in buffer. /	78	int keyrequest_counter; /*< Number of requests in buffer. /
79	int client_phone; /*< Phone to connected client. /	79	int client_phone; /*< Phone to connected client. /
80	int used; /**< 1 if this virtual console is	80	int used; /**< 1 if this virtual console is
81	* connected to some client.*/	81	* connected to some client.*/
82	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen	82	screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen
83	* contents and related settings. */	83	* contents and related settings. */
84	} connection_t;	84	} connection_t;
85		85
86	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual	86	static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
87	* consoles */	87	* consoles */
88	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared	88	static keyfield_t interbuffer = NULL; /*< Pointer to memory shared
89	* with framebufer used for	89	* with framebufer used for
90	* faster virtual console	90	* faster virtual console
91	* switching */	91	* switching */
92		92
93		93
94	/** Find unused virtual console.	94	/** Find unused virtual console.
95	*	95	*
96	*/	96	*/
97	static int find_free_connection(void)	97	static int find_free_connection(void)
98	{	98	{
99	int i;	99	int i;
100		100
101	for (i = 0; i < CONSOLE_COUNT; i++) {	101	for (i = 0; i < CONSOLE_COUNT; i++) {
102	if (!connections[i].used)	102	if (!connections[i].used)
103	return i;	103	return i;
104	}	104	}
105	return -1;	105	return -1;
106	}	106	}
107		107
108	static void clrscr(void)	108	static void clrscr(void)
109	{	109	{
110	async_msg_0(fb_info.phone, FB_CLEAR);	110	async_msg_0(fb_info.phone, FB_CLEAR);
111	}	111	}
112		112
113	static void curs_visibility(bool visible)	113	static void curs_visibility(bool visible)
114	{	114	{
115	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);	115	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
116	}	116	}
117		117
118	static void curs_hide_sync(void)	118	static void curs_hide_sync(void)
119	{	119	{
120	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);	120	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
121	}	121	}
122		122
123	static void curs_goto(int row, int col)	123	static void curs_goto(int row, int col)
124	{	124	{
125	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);	125	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
126	}	126	}
127		127
128	static void set_style(int style)	128	static void set_style(int style)
129	{	129	{
130	async_msg_1(fb_info.phone, FB_SET_STYLE, style);	130	async_msg_1(fb_info.phone, FB_SET_STYLE, style);
131	}	131	}
132		132
133	static void set_color(int fgcolor, int bgcolor, int flags)	133	static void set_color(int fgcolor, int bgcolor, int flags)
134	{	134	{
135	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);	135	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
136	}	136	}
137		137
138	static void set_rgb_color(int fgcolor, int bgcolor)	138	static void set_rgb_color(int fgcolor, int bgcolor)
139	{	139	{
140	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);	140	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
141	}	141	}
142		142
143	static void set_attrs(attrs_t *attrs)	143	static void set_attrs(attrs_t *attrs)
144	{	144	{
145	switch (attrs->t) {	145	switch (attrs->t) {
146	case at_style:	146	case at_style:
147	set_style(attrs->a.s.style);	147	set_style(attrs->a.s.style);
148	break;	148	break;
149		149
150	case at_idx:	150	case at_idx:
151	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,	151	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
152	attrs->a.i.flags);	152	attrs->a.i.flags);
153	break;	153	break;
154		154
155	case at_rgb:	155	case at_rgb:
156	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);	156	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
157	break;	157	break;
158	}	158	}
159	}	159	}
160		160
161	static void prtchr(char c, int row, int col)	161	static void prtchr(char c, int row, int col)
162	{	162	{
163	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);	163	async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
164	}	164	}
165		165
166	/** Check key and process special keys.	166	/** Check key and process special keys.
167	*	167	*
168	*	168	*
169	*/	169	*/
170	static void write_char(int console, char key)	170	static void write_char(int console, char key)
171	{	171	{
172	screenbuffer_t *scr = &(connections[console].screenbuffer);	172	screenbuffer_t *scr = &(connections[console].screenbuffer);
173		173
174	switch (key) {	174	switch (key) {
175	case '\n':	175	case '\n':
176	scr->position_y++;	176	scr->position_y++;
177	scr->position_x = 0;	177	scr->position_x = 0;
178	break;	178	break;
179	case '\r':	179	case '\r':
180	break;	180	break;
181	case '\t':	181	case '\t':
182	scr->position_x += 8;	182	scr->position_x += 8;
183	scr->position_x -= scr->position_x % 8;	183	scr->position_x -= scr->position_x % 8;
184	break;	184	break;
185	case '\b':	185	case '\b':
186	if (scr->position_x == 0)	186	if (scr->position_x == 0)
187	break;	187	break;
188	scr->position_x--;	188	scr->position_x--;
189	if (console == active_console)	189	if (console == active_console)
190	prtchr(' ', scr->position_y, scr->position_x);	190	prtchr(' ', scr->position_y, scr->position_x);
191	screenbuffer_putchar(scr, ' ');	191	screenbuffer_putchar(scr, ' ');
192	break;	192	break;
193	default:	193	default:
194	if (console == active_console)	194	if (console == active_console)
195	prtchr(key, scr->position_y, scr->position_x);	195	prtchr(key, scr->position_y, scr->position_x);
196		196
197	screenbuffer_putchar(scr, key);	197	screenbuffer_putchar(scr, key);
198	scr->position_x++;	198	scr->position_x++;
199	}	199	}
200		200
201	scr->position_y += (scr->position_x >= scr->size_x);	201	scr->position_y += (scr->position_x >= scr->size_x);
202		202
203	if (scr->position_y >= scr->size_y) {	203	if (scr->position_y >= scr->size_y) {
204	scr->position_y = scr->size_y - 1;	204	scr->position_y = scr->size_y - 1;
205	screenbuffer_clear_line(scr, scr->top_line);	205	screenbuffer_clear_line(scr, scr->top_line);
206	scr->top_line = (scr->top_line + 1) % scr->size_y;	206	scr->top_line = (scr->top_line + 1) % scr->size_y;
207	if (console == active_console)	207	if (console == active_console)
208	async_msg_1(fb_info.phone, FB_SCROLL, 1);	208	async_msg_1(fb_info.phone, FB_SCROLL, 1);
209	}	209	}
210		210
211	scr->position_x = scr->position_x % scr->size_x;	211	scr->position_x = scr->position_x % scr->size_x;
212		212
213	if (console == active_console)	213	if (console == active_console)
214	curs_goto(scr->position_y, scr->position_x);	214	curs_goto(scr->position_y, scr->position_x);
215		215
216	}	216	}
217		217
218	/** Switch to new console */	218	/** Switch to new console */
219	static void change_console(int newcons)	219	static void change_console(int newcons)
220	{	220	{
221	connection_t *conn;	221	connection_t *conn;
222	int i, j, rc;	222	int i, j, rc;
223	keyfield_t *field;	223	keyfield_t *field;
224	attrs_t *attrs;	224	attrs_t *attrs;
225		225
226	if (newcons == active_console)	226	if (newcons == active_console)
227	return;	227	return;
228		228
229	if (newcons == KERNEL_CONSOLE) {	229	if (newcons == KERNEL_CONSOLE) {
230	async_serialize_start();	230	async_serialize_start();
231	curs_hide_sync();	231	curs_hide_sync();
232	gcons_in_kernel();	232	gcons_in_kernel();
233	async_serialize_end();	233	async_serialize_end();
234		234
235	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {	235	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
236	prev_console = active_console;	236	prev_console = active_console;
237	active_console = KERNEL_CONSOLE;	237	active_console = KERNEL_CONSOLE;
238	} else	238	} else
239	newcons = active_console;	239	newcons = active_console;
240	}	240	}
241		241
242	if (newcons != KERNEL_CONSOLE) {	242	if (newcons != KERNEL_CONSOLE) {
243	async_serialize_start();	243	async_serialize_start();
244		244
245	if (active_console == KERNEL_CONSOLE)	245	if (active_console == KERNEL_CONSOLE)
246	gcons_redraw_console();	246	gcons_redraw_console();
247		247
248	active_console = newcons;	248	active_console = newcons;
249	gcons_change_console(newcons);	249	gcons_change_console(newcons);
250	conn = &connections[active_console];	250	conn = &connections[active_console];
251		251
252	set_attrs(&conn->screenbuffer.attrs);	252	set_attrs(&conn->screenbuffer.attrs);
253	curs_visibility(false);	253	curs_visibility(false);
254	if (interbuffer) {	254	if (interbuffer) {
255	for (i = 0; i < conn->screenbuffer.size_x; i++)	255	for (i = 0; i < conn->screenbuffer.size_x; i++)
256	for (j = 0; j < conn->screenbuffer.size_y; j++) {	256	for (j = 0; j < conn->screenbuffer.size_y; j++) {
257	unsigned int size_x;	257	unsigned int size_x;
258		258
259	size_x = conn->screenbuffer.size_x;	259	size_x = conn->screenbuffer.size_x;
260	interbuffer[i + j * size_x] =	260	interbuffer[i + j * size_x] =
261	*get_field_at(&conn->screenbuffer, i, j);	261	*get_field_at(&conn->screenbuffer, i, j);
262	}	262	}
263	/* This call can preempt, but we are already at the end */	263	/* This call can preempt, but we are already at the end */
264	rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);	264	rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);
265	}	265	}
266		266
267	if ((!interbuffer) \|\| (rc != 0)) {	267	if ((!interbuffer) \|\| (rc != 0)) {
268	set_attrs(&conn->screenbuffer.attrs);	268	set_attrs(&conn->screenbuffer.attrs);
269	clrscr();	269	clrscr();
270	attrs = &conn->screenbuffer.attrs;	270	attrs = &conn->screenbuffer.attrs;
271		271
272	for (j = 0; j < conn->screenbuffer.size_y; j++)	272	for (j = 0; j < conn->screenbuffer.size_y; j++)
273	for (i = 0; i < conn->screenbuffer.size_x; i++) {	273	for (i = 0; i < conn->screenbuffer.size_x; i++) {
274	field = get_field_at(&conn->screenbuffer, i, j);	274	field = get_field_at(&conn->screenbuffer, i, j);
275	if (!attrs_same(*attrs, field->attrs))	275	if (!attrs_same(*attrs, field->attrs))
276	set_attrs(&field->attrs);	276	set_attrs(&field->attrs);
277	attrs = &field->attrs;	277	attrs = &field->attrs;
278	if ((field->character == ' ') &&	278	if ((field->character == ' ') &&
279	(attrs_same(field->attrs,	279	(attrs_same(field->attrs,
280	conn->screenbuffer.attrs)))	280	conn->screenbuffer.attrs)))
281	continue;	281	continue;
282		282
283	prtchr(field->character, j, i);	283	prtchr(field->character, j, i);
284	}	284	}
285	}	285	}
286		286
287	curs_goto(conn->screenbuffer.position_y,	287	curs_goto(conn->screenbuffer.position_y,
288	conn->screenbuffer.position_x);	288	conn->screenbuffer.position_x);
289	curs_visibility(conn->screenbuffer.is_cursor_visible);	289	curs_visibility(conn->screenbuffer.is_cursor_visible);
290		290
291	async_serialize_end();	291	async_serialize_end();
292	}	292	}
293	}	293	}
294		294
295	/** Handler for keyboard */	295	/** Handler for keyboard */
296	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)	296	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
297	{	297	{
298	ipc_callid_t callid;	298	ipc_callid_t callid;
299	ipc_call_t call;	299	ipc_call_t call;
300	int retval;	300	int retval;
301	kbd_event_t ev;	301	kbd_event_t ev;
302	connection_t *conn;	302	connection_t *conn;
303	int newcon;	303	int newcon;
304		304
305	/* Ignore parameters, the connection is alread opened */	305	/* Ignore parameters, the connection is alread opened */
306	while (1) {	306	while (1) {
307	callid = async_get_call(&call);	307	callid = async_get_call(&call);
308	switch (IPC_GET_METHOD(call)) {	308	switch (IPC_GET_METHOD(call)) {
309	case IPC_M_PHONE_HUNGUP:	309	case IPC_M_PHONE_HUNGUP:
310	/* TODO: Handle hangup */	310	/* TODO: Handle hangup */
311	return;	311	return;
312	case KBD_MS_LEFT:	312	case KBD_MS_LEFT:
313	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));	313	newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
314	if (newcon != -1)	314	if (newcon != -1)
315	change_console(newcon);	315	change_console(newcon);
316	retval = 0;	316	retval = 0;
317	break;	317	break;
318	case KBD_MS_MOVE:	318	case KBD_MS_MOVE:
319	gcons_mouse_move(IPC_GET_ARG1(call),	319	gcons_mouse_move(IPC_GET_ARG1(call),
320	IPC_GET_ARG2(call));	320	IPC_GET_ARG2(call));
321	retval = 0;	321	retval = 0;
322	break;	322	break;
323	case KBD_EVENT:	323	case KBD_EVENT:
324	/* Got event from keyboard driver. */	324	/* Got event from keyboard driver. */
325	retval = 0;	325	retval = 0;
326	ev.type = IPC_GET_ARG1(call);	326	ev.type = IPC_GET_ARG1(call);
327	ev.key = IPC_GET_ARG2(call);	327	ev.key = IPC_GET_ARG2(call);
328	ev.mods = IPC_GET_ARG3(call);	328	ev.mods = IPC_GET_ARG3(call);
329	ev.c = IPC_GET_ARG4(call);	329	ev.c = IPC_GET_ARG4(call);
330		330
331	/* switch to another virtual console */	331	/* switch to another virtual console */
332		332
333	conn = &connections[active_console];	333	conn = &connections[active_console];
334		334
335	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +	335	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
336	CONSOLE_COUNT)) {	336	CONSOLE_COUNT)) {
337	if (ev.key == KC_F12)	337	if (ev.key == KC_F12)
338	change_console(KERNEL_CONSOLE);	338	change_console(KERNEL_CONSOLE);
339	else	339	else
340	change_console(ev.key - KC_F1);	340	change_console(ev.key - KC_F1);
341	break;	341	break;
342	}	342	}
343		343
344	/* if client is awaiting key, send it */	344	/* if client is awaiting key, send it */
345	if (conn->keyrequest_counter > 0) {	345	if (conn->keyrequest_counter > 0) {
346	conn->keyrequest_counter--;	346	conn->keyrequest_counter--;
347	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,	347	ipc_answer_4(fifo_pop(conn->keyrequests), EOK,
348	ev.type, ev.key, ev.mods, ev.c);	348	ev.type, ev.key, ev.mods, ev.c);
349	break;	349	break;
350	}	350	}
351		351
352	keybuffer_push(&conn->keybuffer, &ev);	352	keybuffer_push(&conn->keybuffer, &ev);
353	retval = 0;	353	retval = 0;
354		354
355	break;	355	break;
356	default:	356	default:
357	retval = ENOENT;	357	retval = ENOENT;
358	}	358	}
359	ipc_answer_0(callid, retval);	359	ipc_answer_0(callid, retval);
360	}	360	}
361	}	361	}
362		362
363	/** Default thread for new connections */	363	/** Default thread for new connections */
364	static void client_connection(ipc_callid_t iid, ipc_call_t *icall)	364	static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
365	{	365	{
366	ipc_callid_t callid;	366	ipc_callid_t callid;
367	ipc_call_t call;	367	ipc_call_t call;
368	int consnum;	368	int consnum;
369	ipcarg_t arg1, arg2, arg3, arg4;	369	ipcarg_t arg1, arg2, arg3, arg4;
370	connection_t *conn;	370	connection_t *conn;
371		371
372	if ((consnum = find_free_connection()) == -1) {	372	if ((consnum = find_free_connection()) == -1) {
373	ipc_answer_0(iid, ELIMIT);	373	ipc_answer_0(iid, ELIMIT);
374	return;	374	return;
375	}	375	}
376	conn = &connections[consnum];	376	conn = &connections[consnum];
377	conn->used = 1;	377	conn->used = 1;
378		378
379	async_serialize_start();	379	async_serialize_start();
380	gcons_notify_connect(consnum);	380	gcons_notify_connect(consnum);
381	conn->client_phone = IPC_GET_ARG5(*icall);	381	conn->client_phone = IPC_GET_ARG5(*icall);
382	screenbuffer_clear(&conn->screenbuffer);	382	screenbuffer_clear(&conn->screenbuffer);
383		383
384	/* Accept the connection */	384	/* Accept the connection */
385	ipc_answer_0(iid, EOK);	385	ipc_answer_0(iid, EOK);
386		386
387	while (1) {	387	while (1) {
388	async_serialize_end();	388	async_serialize_end();
389	callid = async_get_call(&call);	389	callid = async_get_call(&call);
390	async_serialize_start();	390	async_serialize_start();
391		391
392	arg1 = 0;	392	arg1 = 0;
393	arg2 = 0;	393	arg2 = 0;
394	arg3 = 0;	394	arg3 = 0;
395	arg4 = 0;	395	arg4 = 0;
396		396
397	switch (IPC_GET_METHOD(call)) {	397	switch (IPC_GET_METHOD(call)) {
398	case IPC_M_PHONE_HUNGUP:	398	case IPC_M_PHONE_HUNGUP:
399	gcons_notify_disconnect(consnum);	399	gcons_notify_disconnect(consnum);
400		400
401	/* Answer all pending requests */	401	/* Answer all pending requests */
402	while (conn->keyrequest_counter > 0) {	402	while (conn->keyrequest_counter > 0) {
403	conn->keyrequest_counter--;	403	conn->keyrequest_counter--;
404	ipc_answer_0(fifo_pop(conn->keyrequests),	404	ipc_answer_0(fifo_pop(conn->keyrequests),
405	ENOENT);	405	ENOENT);
406	break;	406	break;
407	}	407	}
408	conn->used = 0;	408	conn->used = 0;
409	return;	409	return;
410	case CONSOLE_PUTCHAR:	410	case CONSOLE_PUTCHAR:
411	write_char(consnum, IPC_GET_ARG1(call));	411	write_char(consnum, IPC_GET_ARG1(call));
412	gcons_notify_char(consnum);	412	gcons_notify_char(consnum);
413	break;	413	break;
414	case CONSOLE_CLEAR:	414	case CONSOLE_CLEAR:
415	/* Send message to fb */	415	/* Send message to fb */
416	if (consnum == active_console) {	416	if (consnum == active_console) {
417	async_msg_0(fb_info.phone, FB_CLEAR);	417	async_msg_0(fb_info.phone, FB_CLEAR);
418	}	418	}
419		419
420	screenbuffer_clear(&conn->screenbuffer);	420	screenbuffer_clear(&conn->screenbuffer);
421		421
422	break;	422	break;
423	case CONSOLE_GOTO:	423	case CONSOLE_GOTO:
424	screenbuffer_goto(&conn->screenbuffer,	424	screenbuffer_goto(&conn->screenbuffer,
425	IPC_GET_ARG2(call), IPC_GET_ARG1(call));	425	IPC_GET_ARG2(call), IPC_GET_ARG1(call));
426	if (consnum == active_console)	426	if (consnum == active_console)
427	curs_goto(IPC_GET_ARG1(call),	427	curs_goto(IPC_GET_ARG1(call),
428	IPC_GET_ARG2(call));	428	IPC_GET_ARG2(call));
429	break;	429	break;
430	case CONSOLE_GETSIZE:	430	case CONSOLE_GETSIZE:
431	arg1 = fb_info.rows;	431	arg1 = fb_info.rows;
432	arg2 = fb_info.cols;	432	arg2 = fb_info.cols;
433	break;	433	break;
434	case CONSOLE_FLUSH:	434	case CONSOLE_FLUSH:
435	if (consnum == active_console)	435	if (consnum == active_console)
436	async_req_0_0(fb_info.phone, FB_FLUSH);	436	async_req_0_0(fb_info.phone, FB_FLUSH);
437	break;	437	break;
438	case CONSOLE_SET_STYLE:	438	case CONSOLE_SET_STYLE:
439	arg1 = IPC_GET_ARG1(call);	439	arg1 = IPC_GET_ARG1(call);
440	screenbuffer_set_style(&conn->screenbuffer, arg1);	440	screenbuffer_set_style(&conn->screenbuffer, arg1);
441	if (consnum == active_console)	441	if (consnum == active_console)
442	set_style(arg1);	442	set_style(arg1);
443	break;	443	break;
444	case CONSOLE_SET_COLOR:	444	case CONSOLE_SET_COLOR:
445	arg1 = IPC_GET_ARG1(call);	445	arg1 = IPC_GET_ARG1(call);
446	arg2 = IPC_GET_ARG2(call);	446	arg2 = IPC_GET_ARG2(call);
447	arg3 = IPC_GET_ARG3(call);	447	arg3 = IPC_GET_ARG3(call);
448	screenbuffer_set_color(&conn->screenbuffer, arg1,	448	screenbuffer_set_color(&conn->screenbuffer, arg1,
449	arg2, arg3);	449	arg2, arg3);
450	if (consnum == active_console)	450	if (consnum == active_console)
451	set_color(arg1, arg2, arg3);	451	set_color(arg1, arg2, arg3);
452	break;	452	break;
453	case CONSOLE_SET_RGB_COLOR:	453	case CONSOLE_SET_RGB_COLOR:
454	arg1 = IPC_GET_ARG1(call);	454	arg1 = IPC_GET_ARG1(call);
455	arg2 = IPC_GET_ARG2(call);	455	arg2 = IPC_GET_ARG2(call);
456	screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,	456	screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,
457	arg2);	457	arg2);
458	if (consnum == active_console)	458	if (consnum == active_console)
459	set_rgb_color(arg1, arg2);	459	set_rgb_color(arg1, arg2);
460	break;	460	break;
461	case CONSOLE_CURSOR_VISIBILITY:	461	case CONSOLE_CURSOR_VISIBILITY:
462	arg1 = IPC_GET_ARG1(call);	462	arg1 = IPC_GET_ARG1(call);
463	conn->screenbuffer.is_cursor_visible = arg1;	463	conn->screenbuffer.is_cursor_visible = arg1;
464	if (consnum == active_console)	464	if (consnum == active_console)
465	curs_visibility(arg1);	465	curs_visibility(arg1);
466	break;	466	break;
467	case CONSOLE_GETKEY:	467	case CONSOLE_GETKEY:
468	if (keybuffer_empty(&conn->keybuffer)) {	468	if (keybuffer_empty(&conn->keybuffer)) {
469	/* buffer is empty -> store request */	469	/* buffer is empty -> store request */
470	if (conn->keyrequest_counter <	470	if (conn->keyrequest_counter <
471	MAX_KEYREQUESTS_BUFFERED) {	471	MAX_KEYREQUESTS_BUFFERED) {
472	fifo_push(conn->keyrequests, callid);	472	fifo_push(conn->keyrequests, callid);
473	conn->keyrequest_counter++;	473	conn->keyrequest_counter++;
474	} else {	474	} else {
475	/*	475	/*
476	* No key available and too many	476	* No key available and too many
477	* requests => fail.	477	* requests => fail.
478	*/	478	*/
479	ipc_answer_0(callid, ELIMIT);	479	ipc_answer_0(callid, ELIMIT);
480	}	480	}
481	continue;	481	continue;
482	}	482	}
483	kbd_event_t ev;	483	kbd_event_t ev;
484	keybuffer_pop(&conn->keybuffer, &ev);	484	keybuffer_pop(&conn->keybuffer, &ev);
485	arg1 = ev.type;	485	arg1 = ev.type;
486	arg2 = ev.key;	486	arg2 = ev.key;
487	arg3 = ev.mods;	487	arg3 = ev.mods;
488	arg4 = ev.c;	488	arg4 = ev.c;
489	break;	489	break;
490	}	490	}
491	ipc_answer_4(callid, EOK, arg1, arg2, arg3, arg4);	491	ipc_answer_4(callid, EOK, arg1, arg2, arg3, arg4);
492	}	492	}
493	}	493	}
494		494
495	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)	495	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
496	{	496	{
497	change_console(prev_console);	497	change_console(prev_console);
498	}	498	}
499		499
500	int main(int argc, char *argv[])	500	int main(int argc, char *argv[])

Subversion Repositories HelenOS

(root)/branches/dynload/uspace/srv/console/console.c – Rev 4343 → 4345