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 <io/keycode.h>
#include <ipc/fb.h>
#include <ipc/services.h>
#include <errno.h>
#include <keybuffer.h>
#include <ipc/console.h>
#include <unistd.h>
#include <async.h>
#include <adt/fifo.h>
#include <sys/mman.h>
#include <stdio.h>
#include <string.h>
#include <sysinfo.h>
#include <event.h>
#include <devmap.h>
#include <fibril_sync.h>
 
#include "console.h"
#include "gcons.h"
#include "screenbuffer.h"
 
#define NAME  "console"
 
#define MAX_DEVICE_NAME  32
 
/** Phone to the keyboard driver. */
static int kbd_phone;
 
/** Information about framebuffer */
struct {
    int phone;      /**< Framebuffer phone */
    ipcarg_t cols;  /**< Framebuffer columns */
    ipcarg_t rows;  /**< Framebuffer rows */
} fb_info;
 
typedef struct {
    size_t index;             /**< Console index */
    size_t refcount;          /**< Connection reference count */
    dev_handle_t dev_handle;  /**< Device handle */
    keybuffer_t keybuffer;    /**< Buffer for incoming keys. */
    screenbuffer_t scr;       /**< Screenbuffer for saving screen
                                   contents and related settings. */
} console_t;
 
/** Array of data for virtual consoles */
static console_t consoles[CONSOLE_COUNT];
 
static console_t *active_console = &consoles[0];
static console_t *prev_console = &consoles[0];
static console_t *kernel_console = &consoles[KERNEL_CONSOLE];
 
/** Pointer to memory shared with framebufer used for
    faster virtual console switching */
static keyfield_t *interbuffer = NULL;
 
/** Information on row-span yet unsent to FB driver. */
struct {
    size_t col;  /**< Leftmost column of the span. */
    size_t row;  /**< Row where the span lies. */
    size_t cnt;  /**< Width of the span. */
} fb_pending;
 
static FIBRIL_MUTEX_INITIALIZE(input_mutex);
static FIBRIL_CONDVAR_INITIALIZE(input_cv);
 
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(size_t x, size_t y)
{
    async_msg_2(fb_info.phone, FB_CURSOR_GOTO, x, y);
}
 
static void screen_clear(void)
{
    async_msg_0(fb_info.phone, FB_CLEAR);
}
 
static void screen_yield(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
}
 
static void screen_reclaim(void)
{
    ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
}
 
static void kbd_yield(void)
{
    ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
}
 
static void kbd_reclaim(void)
{
    ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
}
 
static void set_style(int style)
{
    async_msg_1(fb_info.phone, FB_SET_STYLE, style);
}
 
static void set_color(int fgcolor, int bgcolor, int flags)
{
    async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
}
 
static void set_rgb_color(int fgcolor, int bgcolor)
{
    async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
}
 
static void set_attrs(attrs_t *attrs)
{
    switch (attrs->t) {
    case at_style:
        set_style(attrs->a.s.style);
        break;
    case at_idx:
        set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
            attrs->a.i.flags);
        break;
    case at_rgb:
        set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
        break;
    }
}
 
/** Send an area of screenbuffer to the FB driver. */
static void fb_update_area(console_t *cons, ipcarg_t x0, ipcarg_t y0, ipcarg_t width, ipcarg_t height)
{
    if (interbuffer) {
        ipcarg_t x;
        ipcarg_t y;
       
        for (y = 0; y < height; y++) {
            for (x = 0; x < width; x++) {
                interbuffer[y * width + x] =
                    *get_field_at(&cons->scr, x0 + x, y0 + y);
            }
        }
       
        async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
            x0, y0, width, height);
    }
}
 
/** Flush pending cells to FB. */
static void fb_pending_flush(void)
{
    if (fb_pending.cnt > 0) {
        fb_update_area(active_console, fb_pending.col,
            fb_pending.row, fb_pending.cnt, 1);
        fb_pending.cnt = 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(size_t col, size_t row)
{
    if (fb_pending.cnt != 0) {
        if ((col != fb_pending.col + fb_pending.cnt)
            || (row != fb_pending.row)) {
            fb_pending_flush();
        }
    }
   
    if (fb_pending.cnt == 0) {
        fb_pending.col = col;
        fb_pending.row = row;
    }
   
    fb_pending.cnt++;
}
 
/** Print a character to the active VC with buffering. */
static void fb_putchar(wchar_t c, ipcarg_t col, ipcarg_t row)
{
    async_msg_3(fb_info.phone, FB_PUTCHAR, c, col, row);
}
 
/** Process a character from the client (TTY emulation). */
static void write_char(console_t *cons, wchar_t ch)
{
    bool flush_cursor = false;
 
    switch (ch) {
    case '\n':
        fb_pending_flush();
        flush_cursor = true;
        cons->scr.position_y++;
        cons->scr.position_x = 0;
        break;
    case '\r':
        break;
    case '\t':
        cons->scr.position_x += 8;
        cons->scr.position_x -= cons->scr.position_x % 8;
        break;
    case '\b':
        if (cons->scr.position_x == 0)
            break;
        cons->scr.position_x--;
        if (cons == active_console)
            cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
        screenbuffer_putchar(&cons->scr, ' ');
        break;
    default:
        if (cons == active_console)
            cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
       
        screenbuffer_putchar(&cons->scr, ch);
        cons->scr.position_x++;
    }
   
    if (cons->scr.position_x >= cons->scr.size_x) {
        flush_cursor = true;
        cons->scr.position_y++;
    }
   
    if (cons->scr.position_y >= cons->scr.size_y) {
        fb_pending_flush();
        cons->scr.position_y = cons->scr.size_y - 1;
        screenbuffer_clear_line(&cons->scr, cons->scr.top_line);
        cons->scr.top_line = (cons->scr.top_line + 1) % cons->scr.size_y;
       
        if (cons == active_console)
            async_msg_1(fb_info.phone, FB_SCROLL, 1);
    }
 
    if (cons == active_console && flush_cursor)
        curs_goto(cons->scr.position_x, cons->scr.position_y);
    cons->scr.position_x = cons->scr.position_x % cons->scr.size_x;
}
 
/** Switch to new console */
static void change_console(console_t *cons)
{
    if (cons == active_console)
        return;
   
    fb_pending_flush();
   
    if (cons == kernel_console) {
        async_serialize_start();
        curs_hide_sync();
        gcons_in_kernel();
        screen_yield();
        kbd_yield();
        async_serialize_end();
       
        if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
            prev_console = active_console;
            active_console = kernel_console;
        } else
            cons = active_console;
    }
   
    if (cons != kernel_console) {
        size_t x;
        size_t y;
        int rc = 0;
       
        async_serialize_start();
       
        if (active_console == kernel_console) {
            screen_reclaim();
            kbd_reclaim();
            gcons_redraw_console();
        }
       
        active_console = cons;
        gcons_change_console(cons->index);
       
        set_attrs(&cons->scr.attrs);
        curs_visibility(false);
        if (interbuffer) {
            for (y = 0; y < cons->scr.size_y; y++) {
                for (x = 0; x < cons->scr.size_x; x++) {
                    interbuffer[y * cons->scr.size_x + x] =
                        *get_field_at(&cons->scr, x, y);
                }
            }
           
            /* 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, cons->scr.size_x,
                cons->scr.size_y);
        }
       
        if ((!interbuffer) || (rc != 0)) {
            set_attrs(&cons->scr.attrs);
            screen_clear();
           
            for (y = 0; y < cons->scr.size_y; y++)
                for (x = 0; x < cons->scr.size_x; x++) {
                    keyfield_t *field = get_field_at(&cons->scr, x, y);
                   
                    if (!attrs_same(cons->scr.attrs, field->attrs))
                        set_attrs(&field->attrs);
                   
                    cons->scr.attrs = field->attrs;
                    if ((field->character == ' ') &&
                        (attrs_same(field->attrs, cons->scr.attrs)))
                        continue;
                   
                    fb_putchar(field->character, x, y);
                }
        }
       
        curs_goto(cons->scr.position_x, cons->scr.position_y);
        curs_visibility(cons->scr.is_cursor_visible);
       
        async_serialize_end();
    }
}
 
/** Handler for keyboard */
static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
{
    /* Ignore parameters, the connection is already opened */
    while (true) {
       
        ipc_call_t call;
        ipc_callid_t callid = async_get_call(&call);
       
        int retval;
        console_event_t ev;
       
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            /* TODO: Handle hangup */
            return;
        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);
           
            if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
                CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
                if (ev.key == KC_F1 + KERNEL_CONSOLE)
                    change_console(kernel_console);
                else
                    change_console(&consoles[ev.key - KC_F1]);
                break;
            }
           
            fibril_mutex_lock(&input_mutex);
            keybuffer_push(&active_console->keybuffer, &ev);
            fibril_condvar_broadcast(&input_cv);
            fibril_mutex_unlock(&input_mutex);
            break;
        default:
            retval = ENOENT;
        }
        ipc_answer_0(callid, retval);
    }
}
 
static void cons_write(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
{
    ipc_callid_t callid;
    size_t size;
    if (!ipc_data_write_receive(&callid, &size)) {
        ipc_answer_0(callid, EINVAL);
        ipc_answer_0(rid, EINVAL);
        return;
    }
   
    char *buf = (char *) malloc(size);
    if (buf == NULL) {
        ipc_answer_0(callid, ENOMEM);
        ipc_answer_0(rid, ENOMEM);
        return;
    }
   
    (void) ipc_data_write_finalize(callid, buf, size);
   
    async_serialize_start();
   
    size_t off = 0;
    while (off < size) {
        wchar_t ch = str_decode(buf, &off, size);
        write_char(cons, ch);
    }
   
    async_serialize_end();
   
    gcons_notify_char(cons->index);
    ipc_answer_1(rid, EOK, size);
   
    free(buf);
}
 
static void cons_read(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
{
    ipc_callid_t callid;
    size_t size;
    if (!ipc_data_read_receive(&callid, &size)) {
        ipc_answer_0(callid, EINVAL);
        ipc_answer_0(rid, EINVAL);
        return;
    }
   
    char *buf = (char *) malloc(size);
    if (buf == NULL) {
        ipc_answer_0(callid, ENOMEM);
        ipc_answer_0(rid, ENOMEM);
        return;
    }
   
    size_t pos = 0;
    console_event_t ev;
    fibril_mutex_lock(&input_mutex);
recheck:
    while ((keybuffer_pop(&cons->keybuffer, &ev)) && (pos < size)) {
        if (ev.type == KEY_PRESS) {
            buf[pos] = ev.c;
            pos++;
        }
    }
   
    if (pos == size) {
        (void) ipc_data_read_finalize(callid, buf, size);
        ipc_answer_1(rid, EOK, size);
        free(buf);
    } else {
        fibril_condvar_wait(&input_cv, &input_mutex);
        goto recheck;
    }
    fibril_mutex_unlock(&input_mutex);
}
 
static void cons_get_event(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
{
    console_event_t ev;
 
    fibril_mutex_lock(&input_mutex);
recheck:
    if (keybuffer_pop(&cons->keybuffer, &ev)) {
        ipc_answer_4(rid, EOK, ev.type, ev.key, ev.mods, ev.c);
    } else {
        fibril_condvar_wait(&input_cv, &input_mutex);
        goto recheck;
    }
    fibril_mutex_unlock(&input_mutex);
}
 
/** Default thread for new connections */
static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
    console_t *cons = NULL;
   
    size_t i;
    for (i = 0; i < CONSOLE_COUNT; i++) {
        if (i == KERNEL_CONSOLE)
            continue;
       
        if (consoles[i].dev_handle == (dev_handle_t) IPC_GET_ARG1(*icall)) {
            cons = &consoles[i];
            break;
        }
    }
   
    if (cons == NULL) {
        ipc_answer_0(iid, ENOENT);
        return;
    }
   
    ipc_callid_t callid;
    ipc_call_t call;
    ipcarg_t arg1;
    ipcarg_t arg2;
    ipcarg_t arg3;
   
    async_serialize_start();
    if (cons->refcount == 0)
        gcons_notify_connect(cons->index);
   
    cons->refcount++;
   
    /* Accept the connection */
    ipc_answer_0(iid, EOK);
   
    while (true) {
        async_serialize_end();
        callid = async_get_call(&call);
        async_serialize_start();
       
        arg1 = 0;
        arg2 = 0;
        arg3 = 0;
       
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            cons->refcount--;
            if (cons->refcount == 0)
                gcons_notify_disconnect(cons->index);
            return;
        case VFS_OUT_READ:
            async_serialize_end();
            cons_read(cons, callid, &call);
            async_serialize_start();
            continue;
        case VFS_OUT_WRITE:
            async_serialize_end();
            cons_write(cons, callid, &call);
            async_serialize_start();
            continue;
        case VFS_OUT_SYNC:
            fb_pending_flush();
            if (cons == active_console) {
                async_req_0_0(fb_info.phone, FB_FLUSH);
               
                curs_goto(cons->scr.position_x, cons->scr.position_y);
            }
            break;
        case CONSOLE_CLEAR:
            /* Send message to fb */
            if (cons == active_console)
                async_msg_0(fb_info.phone, FB_CLEAR);
           
            screenbuffer_clear(&cons->scr);
           
            break;
        case CONSOLE_GOTO:
            screenbuffer_goto(&cons->scr,
                IPC_GET_ARG1(call), IPC_GET_ARG2(call));
            if (cons == active_console)
                curs_goto(IPC_GET_ARG1(call),
                    IPC_GET_ARG2(call));
            break;
        case CONSOLE_GET_SIZE:
            arg1 = fb_info.cols;
            arg2 = fb_info.rows;
            break;
        case CONSOLE_SET_STYLE:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            screenbuffer_set_style(&cons->scr, arg1);
            if (cons == 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(&cons->scr, arg1, arg2, arg3);
            if (cons == 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(&cons->scr, arg1, arg2);
            if (cons == active_console)
                set_rgb_color(arg1, arg2);
            break;
        case CONSOLE_CURSOR_VISIBILITY:
            fb_pending_flush();
            arg1 = IPC_GET_ARG1(call);
            cons->scr.is_cursor_visible = arg1;
            if (cons == active_console)
                curs_visibility(arg1);
            break;
        case CONSOLE_GET_EVENT:
            async_serialize_end();
            cons_get_event(cons, callid, &call);
            async_serialize_start();
            continue;
        case CONSOLE_KCON_ENABLE:
            change_console(kernel_console);
            break;
        }
        ipc_answer_3(callid, EOK, arg1, arg2, arg3);
    }
}
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
{
    change_console(prev_console);
}
 
static bool console_init(void)
{
    /* 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 false;
    }
   
    ipcarg_t phonehash;
    if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0) {
        printf(NAME ": Failed to create callback from keyboard service\n");
        return false;
    }
   
    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;
    }
   
    /* Register driver */
    int rc = devmap_driver_register(NAME, client_connection);
    if (rc < 0) {
        printf(NAME ": Unable to register driver (%d)\n", rc);
        return false;
    }
   
    /* Initialize gcons */
    gcons_init(fb_info.phone);
   
    /* Synchronize, the gcons could put something in queue */
    async_req_0_0(fb_info.phone, FB_FLUSH);
    async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.cols, &fb_info.rows);
   
    /* Set up shared memory buffer. */
    size_t 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;
        }
    }
   
    fb_pending.cnt = 0;
   
    /* Inititalize consoles */
    size_t i;
    for (i = 0; i < CONSOLE_COUNT; i++) {
        if (i != KERNEL_CONSOLE) {
            if (screenbuffer_init(&consoles[i].scr,
                fb_info.cols, fb_info.rows) == NULL) {
                printf(NAME ": Unable to allocate screen buffer %u\n", i);
                return false;
            }
            screenbuffer_clear(&consoles[i].scr);
            keybuffer_init(&consoles[i].keybuffer);
            consoles[i].index = i;
            consoles[i].refcount = 0;
           
            char vc[MAX_DEVICE_NAME];
            snprintf(vc, MAX_DEVICE_NAME, "vc%u", i);
           
            if (devmap_device_register(vc, &consoles[i].dev_handle) != EOK) {
                devmap_hangup_phone(DEVMAP_DRIVER);
                printf(NAME ": Unable to register device %s\n", vc);
                return false;
            }
        }
    }
   
    /* Disable kernel output to the console */
    __SYSCALL0(SYS_DEBUG_DISABLE_CONSOLE);
   
    /* Initialize the screen */
    async_serialize_start();
    gcons_redraw_console();
    set_rgb_color(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
    screen_clear();
    curs_goto(0, 0);
    curs_visibility(active_console->scr.is_cursor_visible);
    async_serialize_end();
   
    /* Receive kernel notifications */
    if (event_subscribe(EVENT_KCONSOLE, 0) != EOK)
        printf(NAME ": Error registering kconsole notifications\n");
   
    async_set_interrupt_received(interrupt_received);
   
    return true;
}
 
int main(int argc, char *argv[])
{
    printf(NAME ": HelenOS Console service\n");
   
    if (!console_init())
        return -1;
   
    printf(NAME ": Accepting connections\n");
    async_manager();
   
    return 0;
}
 
/** @}
 */
 

Rev 4571	Rev 4584
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 <io/keycode.h>	39	#include <io/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 <keybuffer.h>	43	#include <keybuffer.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 <adt/fifo.h>	47	#include <adt/fifo.h>
48	#include <sys/mman.h>	48	#include <sys/mman.h>
49	#include <stdio.h>	49	#include <stdio.h>
50	#include <string.h>	50	#include <string.h>
51	#include <sysinfo.h>	51	#include <sysinfo.h>
52	#include <event.h>	52	#include <event.h>
53	#include <devmap.h>	53	#include <devmap.h>
54	#include <fibril_sync.h>	54	#include <fibril_sync.h>
55		55
56	#include "console.h"	56	#include "console.h"
57	#include "gcons.h"	57	#include "gcons.h"
58	#include "screenbuffer.h"	58	#include "screenbuffer.h"
59		59
60	#define NAME "console"	60	#define NAME "console"
61		61
62	#define MAX_DEVICE_NAME 32	62	#define MAX_DEVICE_NAME 32
63		63
64	/** Phone to the keyboard driver. */	64	/** Phone to the keyboard driver. */
65	static int kbd_phone;	65	static int kbd_phone;
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 cols; /*< Framebuffer columns /	70	ipcarg_t cols; /*< Framebuffer columns /
71	ipcarg_t rows; /*< Framebuffer rows /	71	ipcarg_t rows; /*< Framebuffer rows /
72	} fb_info;	72	} fb_info;
73		73
74	typedef struct {	74	typedef struct {
75	size_t index; /*< Console index /	75	size_t index; /*< Console index /
76	size_t refcount; /*< Connection reference count /	76	size_t refcount; /*< Connection reference count /
77	dev_handle_t dev_handle; /*< Device handle /	77	dev_handle_t dev_handle; /*< Device handle /
78	keybuffer_t keybuffer; /*< Buffer for incoming keys. /	78	keybuffer_t keybuffer; /*< Buffer for incoming keys. /
79	screenbuffer_t scr; /**< Screenbuffer for saving screen	79	screenbuffer_t scr; /**< Screenbuffer for saving screen
80	contents and related settings. */	80	contents and related settings. */
81	} console_t;	81	} console_t;
82		82
83	/** Array of data for virtual consoles */	83	/** Array of data for virtual consoles */
84	static console_t consoles[CONSOLE_COUNT];	84	static console_t consoles[CONSOLE_COUNT];
85		85
86	static console_t *active_console = &consoles[0];	86	static console_t *active_console = &consoles[0];
87	static console_t *prev_console = &consoles[0];	87	static console_t *prev_console = &consoles[0];
88	static console_t *kernel_console = &consoles[KERNEL_CONSOLE];	88	static console_t *kernel_console = &consoles[KERNEL_CONSOLE];
89		89
90	/** Pointer to memory shared with framebufer used for	90	/** Pointer to memory shared with framebufer used for
91	faster virtual console switching */	91	faster virtual console switching */
92	static keyfield_t *interbuffer = NULL;	92	static keyfield_t *interbuffer = NULL;
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	size_t col; /*< Leftmost column of the span. /	96	size_t col; /*< Leftmost column of the span. /
97	size_t row; /*< Row where the span lies. /	97	size_t row; /*< Row where the span lies. /
98	size_t cnt; /*< Width of the span. /	98	size_t cnt; /*< Width of the span. /
99	} fb_pending;	99	} fb_pending;
100		100
101	static FIBRIL_MUTEX_INITIALIZE(input_mutex);	101	static FIBRIL_MUTEX_INITIALIZE(input_mutex);
102	static FIBRIL_CONDVAR_INITIALIZE(input_cv);	102	static FIBRIL_CONDVAR_INITIALIZE(input_cv);
103		103
104	static void curs_visibility(bool visible)	104	static void curs_visibility(bool visible)
105	{	105	{
106	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);	106	async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
107	}	107	}
108		108
109	static void curs_hide_sync(void)	109	static void curs_hide_sync(void)
110	{	110	{
111	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);	111	ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
112	}	112	}
113		113
114	static void curs_goto(size_t x, size_t y)	114	static void curs_goto(size_t x, size_t y)
115	{	115	{
116	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, x, y);	116	async_msg_2(fb_info.phone, FB_CURSOR_GOTO, x, y);
117	}	117	}
118		118
119	static void screen_clear(void)	119	static void screen_clear(void)
120	{	120	{
121	async_msg_0(fb_info.phone, FB_CLEAR);	121	async_msg_0(fb_info.phone, FB_CLEAR);
122	}	122	}
123		123
124	static void screen_yield(void)	124	static void screen_yield(void)
125	{	125	{
126	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);	126	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
127	}	127	}
128		128
129	static void screen_reclaim(void)	129	static void screen_reclaim(void)
130	{	130	{
131	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);	131	ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
132	}	132	}
133		133
134	static void kbd_yield(void)	134	static void kbd_yield(void)
135	{	135	{
136	ipc_call_sync_0_0(kbd_phone, KBD_YIELD);	136	ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
137	}	137	}
138		138
139	static void kbd_reclaim(void)	139	static void kbd_reclaim(void)
140	{	140	{
141	ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);	141	ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
142	}	142	}
143		143
144	static void set_style(int style)	144	static void set_style(int style)
145	{	145	{
146	async_msg_1(fb_info.phone, FB_SET_STYLE, style);	146	async_msg_1(fb_info.phone, FB_SET_STYLE, style);
147	}	147	}
148		148
149	static void set_color(int fgcolor, int bgcolor, int flags)	149	static void set_color(int fgcolor, int bgcolor, int flags)
150	{	150	{
151	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);	151	async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
152	}	152	}
153		153
154	static void set_rgb_color(int fgcolor, int bgcolor)	154	static void set_rgb_color(int fgcolor, int bgcolor)
155	{	155	{
156	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);	156	async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
157	}	157	}
158		158
159	static void set_attrs(attrs_t *attrs)	159	static void set_attrs(attrs_t *attrs)
160	{	160	{
161	switch (attrs->t) {	161	switch (attrs->t) {
162	case at_style:	162	case at_style:
163	set_style(attrs->a.s.style);	163	set_style(attrs->a.s.style);
164	break;	164	break;
165	case at_idx:	165	case at_idx:
166	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,	166	set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
167	attrs->a.i.flags);	167	attrs->a.i.flags);
168	break;	168	break;
169	case at_rgb:	169	case at_rgb:
170	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);	170	set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
171	break;	171	break;
172	}	172	}
173	}	173	}
174		174
175	/** Send an area of screenbuffer to the FB driver. */	175	/** Send an area of screenbuffer to the FB driver. */
176	static void fb_update_area(console_t *cons, ipcarg_t x0, ipcarg_t y0, ipcarg_t width, ipcarg_t height)	176	static void fb_update_area(console_t *cons, ipcarg_t x0, ipcarg_t y0, ipcarg_t width, ipcarg_t height)
177	{	177	{
178	if (interbuffer) {	178	if (interbuffer) {
179	ipcarg_t x;	179	ipcarg_t x;
180	ipcarg_t y;	180	ipcarg_t y;
181		181
182	for (y = 0; y < height; y++) {	182	for (y = 0; y < height; y++) {
183	for (x = 0; x < width; x++) {	183	for (x = 0; x < width; x++) {
184	interbuffer[y * width + x] =	184	interbuffer[y * width + x] =
185	*get_field_at(&cons->scr, x0 + x, y0 + y);	185	*get_field_at(&cons->scr, x0 + x, y0 + y);
186	}	186	}
187	}	187	}
188		188
189	async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	189	async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
190	x0, y0, width, height);	190	x0, y0, width, height);
191	}	191	}
192	}	192	}
193		193
194	/** Flush pending cells to FB. */	194	/** Flush pending cells to FB. */
195	static void fb_pending_flush(void)	195	static void fb_pending_flush(void)
196	{	196	{
197	if (fb_pending.cnt > 0) {	197	if (fb_pending.cnt > 0) {
198	fb_update_area(active_console, fb_pending.col,	198	fb_update_area(active_console, fb_pending.col,
199	fb_pending.row, fb_pending.cnt, 1);	199	fb_pending.row, fb_pending.cnt, 1);
200	fb_pending.cnt = 0;	200	fb_pending.cnt = 0;
201	}	201	}
202	}	202	}
203		203
204	/** Mark a character cell as changed.	204	/** Mark a character cell as changed.
205	*	205	*
206	* This adds the cell to the pending rowspan if possible. Otherwise	206	* This adds the cell to the pending rowspan if possible. Otherwise
207	* the old span is flushed first.	207	* the old span is flushed first.
208	*	208	*
209	*/	209	*/
210	static void cell_mark_changed(size_t col, size_t row)	210	static void cell_mark_changed(size_t col, size_t row)
211	{	211	{
212	if (fb_pending.cnt != 0) {	212	if (fb_pending.cnt != 0) {
213	if ((col != fb_pending.col + fb_pending.cnt)	213	if ((col != fb_pending.col + fb_pending.cnt)
214	\|\| (row != fb_pending.row)) {	214	\|\| (row != fb_pending.row)) {
215	fb_pending_flush();	215	fb_pending_flush();
216	}	216	}
217	}	217	}
218		218
219	if (fb_pending.cnt == 0) {	219	if (fb_pending.cnt == 0) {
220	fb_pending.col = col;	220	fb_pending.col = col;
221	fb_pending.row = row;	221	fb_pending.row = row;
222	}	222	}
223		223
224	fb_pending.cnt++;	224	fb_pending.cnt++;
225	}	225	}
226		226
227	/** Print a character to the active VC with buffering. */	227	/** Print a character to the active VC with buffering. */
228	static void fb_putchar(wchar_t c, ipcarg_t col, ipcarg_t row)	228	static void fb_putchar(wchar_t c, ipcarg_t col, ipcarg_t row)
229	{	229	{
230	async_msg_3(fb_info.phone, FB_PUTCHAR, c, col, row);	230	async_msg_3(fb_info.phone, FB_PUTCHAR, c, col, row);
231	}	231	}
232		232
233	/** Process a character from the client (TTY emulation). */	233	/** Process a character from the client (TTY emulation). */
234	static void write_char(console_t *cons, wchar_t ch)	234	static void write_char(console_t *cons, wchar_t ch)
235	{	235	{
236	bool flush_cursor = false;	236	bool flush_cursor = false;
237		237
238	switch (ch) {	238	switch (ch) {
239	case '\n':	239	case '\n':
240	fb_pending_flush();	240	fb_pending_flush();
241	flush_cursor = true;	241	flush_cursor = true;
242	cons->scr.position_y++;	242	cons->scr.position_y++;
243	cons->scr.position_x = 0;	243	cons->scr.position_x = 0;
244	break;	244	break;
245	case '\r':	245	case '\r':
246	break;	246	break;
247	case '\t':	247	case '\t':
248	cons->scr.position_x += 8;	248	cons->scr.position_x += 8;
249	cons->scr.position_x -= cons->scr.position_x % 8;	249	cons->scr.position_x -= cons->scr.position_x % 8;
250	break;	250	break;
251	case '\b':	251	case '\b':
252	if (cons->scr.position_x == 0)	252	if (cons->scr.position_x == 0)
253	break;	253	break;
254	cons->scr.position_x--;	254	cons->scr.position_x--;
255	if (cons == active_console)	255	if (cons == active_console)
256	cell_mark_changed(cons->scr.position_x, cons->scr.position_y);	256	cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
257	screenbuffer_putchar(&cons->scr, ' ');	257	screenbuffer_putchar(&cons->scr, ' ');
258	break;	258	break;
259	default:	259	default:
260	if (cons == active_console)	260	if (cons == active_console)
261	cell_mark_changed(cons->scr.position_x, cons->scr.position_y);	261	cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
262		262
263	screenbuffer_putchar(&cons->scr, ch);	263	screenbuffer_putchar(&cons->scr, ch);
264	cons->scr.position_x++;	264	cons->scr.position_x++;
265	}	265	}
266		266
267	if (cons->scr.position_x >= cons->scr.size_x) {	267	if (cons->scr.position_x >= cons->scr.size_x) {
268	flush_cursor = true;	268	flush_cursor = true;
269	cons->scr.position_y++;	269	cons->scr.position_y++;
270	}	270	}
271		271
272	if (cons->scr.position_y >= cons->scr.size_y) {	272	if (cons->scr.position_y >= cons->scr.size_y) {
273	fb_pending_flush();	273	fb_pending_flush();
274	cons->scr.position_y = cons->scr.size_y - 1;	274	cons->scr.position_y = cons->scr.size_y - 1;
275	screenbuffer_clear_line(&cons->scr, cons->scr.top_line);	275	screenbuffer_clear_line(&cons->scr, cons->scr.top_line);
276	cons->scr.top_line = (cons->scr.top_line + 1) % cons->scr.size_y;	276	cons->scr.top_line = (cons->scr.top_line + 1) % cons->scr.size_y;
277		277
278	if (cons == active_console)	278	if (cons == active_console)
279	async_msg_1(fb_info.phone, FB_SCROLL, 1);	279	async_msg_1(fb_info.phone, FB_SCROLL, 1);
280	}	280	}
281		281
282	if (cons == active_console && flush_cursor)	282	if (cons == active_console && flush_cursor)
283	curs_goto(cons->scr.position_x, cons->scr.position_y);	283	curs_goto(cons->scr.position_x, cons->scr.position_y);
284	cons->scr.position_x = cons->scr.position_x % cons->scr.size_x;	284	cons->scr.position_x = cons->scr.position_x % cons->scr.size_x;
285	}	285	}
286		286
287	/** Switch to new console */	287	/** Switch to new console */
288	static void change_console(console_t *cons)	288	static void change_console(console_t *cons)
289	{	289	{
290	if (cons == active_console)	290	if (cons == active_console)
291	return;	291	return;
292		292
293	fb_pending_flush();	293	fb_pending_flush();
294		294
295	if (cons == kernel_console) {	295	if (cons == kernel_console) {
296	async_serialize_start();	296	async_serialize_start();
297	curs_hide_sync();	297	curs_hide_sync();
298	gcons_in_kernel();	298	gcons_in_kernel();
299	screen_yield();	299	screen_yield();
300	kbd_yield();	300	kbd_yield();
301	async_serialize_end();	301	async_serialize_end();
302		302
303	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {	303	if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
304	prev_console = active_console;	304	prev_console = active_console;
305	active_console = kernel_console;	305	active_console = kernel_console;
306	} else	306	} else
307	cons = active_console;	307	cons = active_console;
308	}	308	}
309		309
310	if (cons != kernel_console) {	310	if (cons != kernel_console) {
311	size_t x;	311	size_t x;
312	size_t y;	312	size_t y;
313	int rc = 0;	313	int rc = 0;
314		314
315	async_serialize_start();	315	async_serialize_start();
316		316
317	if (active_console == kernel_console) {	317	if (active_console == kernel_console) {
318	screen_reclaim();	318	screen_reclaim();
319	kbd_reclaim();	319	kbd_reclaim();
320	gcons_redraw_console();	320	gcons_redraw_console();
321	}	321	}
322		322
323	active_console = cons;	323	active_console = cons;
324	gcons_change_console(cons->index);	324	gcons_change_console(cons->index);
325		325
326	set_attrs(&cons->scr.attrs);	326	set_attrs(&cons->scr.attrs);
327	curs_visibility(false);	327	curs_visibility(false);
328	if (interbuffer) {	328	if (interbuffer) {
329	for (y = 0; y < cons->scr.size_y; y++) {	329	for (y = 0; y < cons->scr.size_y; y++) {
330	for (x = 0; x < cons->scr.size_x; x++) {	330	for (x = 0; x < cons->scr.size_x; x++) {
331	interbuffer[y * cons->scr.size_x + x] =	331	interbuffer[y * cons->scr.size_x + x] =
332	*get_field_at(&cons->scr, x, y);	332	*get_field_at(&cons->scr, x, y);
333	}	333	}
334	}	334	}
335		335
336	/* This call can preempt, but we are already at the end */	336	/* This call can preempt, but we are already at the end */
337	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,	337	rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
338	0, 0, cons->scr.size_x,	338	0, 0, cons->scr.size_x,
339	cons->scr.size_y);	339	cons->scr.size_y);
340	}	340	}
341		341
342	if ((!interbuffer) \|\| (rc != 0)) {	342	if ((!interbuffer) \|\| (rc != 0)) {
343	set_attrs(&cons->scr.attrs);	343	set_attrs(&cons->scr.attrs);
344	screen_clear();	344	screen_clear();
345		345
346	for (y = 0; y < cons->scr.size_y; y++)	346	for (y = 0; y < cons->scr.size_y; y++)
347	for (x = 0; x < cons->scr.size_x; x++) {	347	for (x = 0; x < cons->scr.size_x; x++) {
348	keyfield_t *field = get_field_at(&cons->scr, x, y);	348	keyfield_t *field = get_field_at(&cons->scr, x, y);
349		349
350	if (!attrs_same(cons->scr.attrs, field->attrs))	350	if (!attrs_same(cons->scr.attrs, field->attrs))
351	set_attrs(&field->attrs);	351	set_attrs(&field->attrs);
352		352
353	cons->scr.attrs = field->attrs;	353	cons->scr.attrs = field->attrs;
354	if ((field->character == ' ') &&	354	if ((field->character == ' ') &&
355	(attrs_same(field->attrs, cons->scr.attrs)))	355	(attrs_same(field->attrs, cons->scr.attrs)))
356	continue;	356	continue;
357		357
358	fb_putchar(field->character, x, y);	358	fb_putchar(field->character, x, y);
359	}	359	}
360	}	360	}
361		361
362	curs_goto(cons->scr.position_x, cons->scr.position_y);	362	curs_goto(cons->scr.position_x, cons->scr.position_y);
363	curs_visibility(cons->scr.is_cursor_visible);	363	curs_visibility(cons->scr.is_cursor_visible);
364		364
365	async_serialize_end();	365	async_serialize_end();
366	}	366	}
367	}	367	}
368		368
369	/** Handler for keyboard */	369	/** Handler for keyboard */
370	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)	370	static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
371	{	371	{
372	/* Ignore parameters, the connection is already opened */	372	/* Ignore parameters, the connection is already opened */
373	while (true) {	373	while (true) {
374		374
375	ipc_call_t call;	375	ipc_call_t call;
376	ipc_callid_t callid = async_get_call(&call);	376	ipc_callid_t callid = async_get_call(&call);
377		377
378	int retval;	378	int retval;
379	console_event_t ev;	379	console_event_t ev;
380		380
381	switch (IPC_GET_METHOD(call)) {	381	switch (IPC_GET_METHOD(call)) {
382	case IPC_M_PHONE_HUNGUP:	382	case IPC_M_PHONE_HUNGUP:
383	/* TODO: Handle hangup */	383	/* TODO: Handle hangup */
384	return;	384	return;
385	case KBD_EVENT:	385	case KBD_EVENT:
386	/* Got event from keyboard driver. */	386	/* Got event from keyboard driver. */
387	retval = 0;	387	retval = 0;
388	ev.type = IPC_GET_ARG1(call);	388	ev.type = IPC_GET_ARG1(call);
389	ev.key = IPC_GET_ARG2(call);	389	ev.key = IPC_GET_ARG2(call);
390	ev.mods = IPC_GET_ARG3(call);	390	ev.mods = IPC_GET_ARG3(call);
391	ev.c = IPC_GET_ARG4(call);	391	ev.c = IPC_GET_ARG4(call);
392		392
393	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +	393	if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
394	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {	394	CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
395	if (ev.key == KC_F1 + KERNEL_CONSOLE)	395	if (ev.key == KC_F1 + KERNEL_CONSOLE)
396	change_console(kernel_console);	396	change_console(kernel_console);
397	else	397	else
398	change_console(&consoles[ev.key - KC_F1]);	398	change_console(&consoles[ev.key - KC_F1]);
399	break;	399	break;
400	}	400	}
401		401
402	fibril_mutex_lock(&input_mutex);	402	fibril_mutex_lock(&input_mutex);
403	keybuffer_push(&active_console->keybuffer, &ev);	403	keybuffer_push(&active_console->keybuffer, &ev);
404	fibril_condvar_broadcast(&input_cv);	404	fibril_condvar_broadcast(&input_cv);
405	fibril_mutex_unlock(&input_mutex);	405	fibril_mutex_unlock(&input_mutex);
406	break;	406	break;
407	default:	407	default:
408	retval = ENOENT;	408	retval = ENOENT;
409	}	409	}
410	ipc_answer_0(callid, retval);	410	ipc_answer_0(callid, retval);
411	}	411	}
412	}	412	}
413		413
414	static void cons_write(console_t cons, ipc_callid_t rid, ipc_call_t request)	414	static void cons_write(console_t cons, ipc_callid_t rid, ipc_call_t request)
415	{	415	{
416	ipc_callid_t callid;	416	ipc_callid_t callid;
417	size_t size;	417	size_t size;
418	if (!ipc_data_write_receive(&callid, &size)) {	418	if (!ipc_data_write_receive(&callid, &size)) {
419	ipc_answer_0(callid, EINVAL);	419	ipc_answer_0(callid, EINVAL);
420	ipc_answer_0(rid, EINVAL);	420	ipc_answer_0(rid, EINVAL);
421	return;	421	return;
422	}	422	}
423		423
424	char buf = (char ) malloc(size);	424	char buf = (char ) malloc(size);
425	if (buf == NULL) {	425	if (buf == NULL) {
426	ipc_answer_0(callid, ENOMEM);	426	ipc_answer_0(callid, ENOMEM);
427	ipc_answer_0(rid, ENOMEM);	427	ipc_answer_0(rid, ENOMEM);
428	return;	428	return;
429	}	429	}
430		430
431	(void) ipc_data_write_finalize(callid, buf, size);	431	(void) ipc_data_write_finalize(callid, buf, size);
432		432
433	async_serialize_start();	433	async_serialize_start();
434		434
435	size_t off = 0;	435	size_t off = 0;
436	while (off < size) {	436	while (off < size) {
437	wchar_t ch = str_decode(buf, &off, size);	437	wchar_t ch = str_decode(buf, &off, size);
438	write_char(cons, ch);	438	write_char(cons, ch);
439	}	439	}
440		440
441	async_serialize_end();	441	async_serialize_end();
442		442
443	gcons_notify_char(cons->index);	443	gcons_notify_char(cons->index);
444	ipc_answer_1(rid, EOK, size);	444	ipc_answer_1(rid, EOK, size);
445		445
446	free(buf);	446	free(buf);
447	}	447	}
448		448
449	static void cons_read(console_t cons, ipc_callid_t rid, ipc_call_t request)	449	static void cons_read(console_t cons, ipc_callid_t rid, ipc_call_t request)
450	{	450	{
451	ipc_callid_t callid;	451	ipc_callid_t callid;
452	size_t size;	452	size_t size;
453	if (!ipc_data_read_receive(&callid, &size)) {	453	if (!ipc_data_read_receive(&callid, &size)) {
454	ipc_answer_0(callid, EINVAL);	454	ipc_answer_0(callid, EINVAL);
455	ipc_answer_0(rid, EINVAL);	455	ipc_answer_0(rid, EINVAL);
456	return;	456	return;
457	}	457	}
458		458
459	char buf = (char ) malloc(size);	459	char buf = (char ) malloc(size);
460	if (buf == NULL) {	460	if (buf == NULL) {
461	ipc_answer_0(callid, ENOMEM);	461	ipc_answer_0(callid, ENOMEM);
462	ipc_answer_0(rid, ENOMEM);	462	ipc_answer_0(rid, ENOMEM);
463	return;	463	return;
464	}	464	}
465		465
466	size_t pos = 0;	466	size_t pos = 0;
467	console_event_t ev;	467	console_event_t ev;
468	fibril_mutex_lock(&input_mutex);	468	fibril_mutex_lock(&input_mutex);
469	recheck:	469	recheck:
470	while ((keybuffer_pop(&cons->keybuffer, &ev)) && (pos < size)) {	470	while ((keybuffer_pop(&cons->keybuffer, &ev)) && (pos < size)) {
471	if (ev.type == KEY_PRESS) {	471	if (ev.type == KEY_PRESS) {
472	buf[pos] = ev.c;	472	buf[pos] = ev.c;
473	pos++;	473	pos++;
474	}	474	}
475	}	475	}
476		476
477	if (pos == size) {	477	if (pos == size) {
478	(void) ipc_data_read_finalize(callid, buf, size);	478	(void) ipc_data_read_finalize(callid, buf, size);
479	ipc_answer_1(rid, EOK, size);	479	ipc_answer_1(rid, EOK, size);
480	free(buf);	480	free(buf);
481	} else {	481	} else {
482	fibril_condvar_wait(&input_cv, &input_mutex);	482	fibril_condvar_wait(&input_cv, &input_mutex);
483	goto recheck;	483	goto recheck;
484	}	484	}
485	fibril_mutex_unlock(&input_mutex);	485	fibril_mutex_unlock(&input_mutex);
486	}	486	}
487		487
488	static void cons_get_event(console_t cons, ipc_callid_t rid, ipc_call_t request)	488	static void cons_get_event(console_t cons, ipc_callid_t rid, ipc_call_t request)
489	{	489	{
490	console_event_t ev;	490	console_event_t ev;
491		491
492	fibril_mutex_lock(&input_mutex);	492	fibril_mutex_lock(&input_mutex);
493	recheck:	493	recheck:
494	if (keybuffer_pop(&cons->keybuffer, &ev)) {	494	if (keybuffer_pop(&cons->keybuffer, &ev)) {
495	ipc_answer_4(rid, EOK, ev.type, ev.key, ev.mods, ev.c);	495	ipc_answer_4(rid, EOK, ev.type, ev.key, ev.mods, ev.c);
496	} else {	496	} else {
497	fibril_condvar_wait(&input_cv, &input_mutex);	497	fibril_condvar_wait(&input_cv, &input_mutex);
498	goto recheck;	498	goto recheck;
499	}	499	}
500	fibril_mutex_unlock(&input_mutex);	500	fibril_mutex_unlock(&input_mutex);

Subversion Repositories HelenOS

(root)/trunk/uspace/srv/console/console.c @ 4680 – Rev 4571 → 4584