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Ignore whitespace Rev HEAD → Rev 2678

/trunk/uspace/srv/console/console.c
27,7 → 27,7
*/
 
/** @addtogroup console
* @{
* @{
*/
/** @file
*/
35,388 → 35,326
#include <libc.h>
#include <fb.h>
#include <ipc/ipc.h>
#include <kbd.h>
#include <io/keycode.h>
#include <keys.h>
#include <ipc/fb.h>
#include <ipc/services.h>
#include <errno.h>
#include <keybuffer.h>
#include <ipc/console.h>
#include <key_buffer.h>
#include <console.h>
#include <unistd.h>
#include <async.h>
#include <adt/fifo.h>
#include <libadt/fifo.h>
#include <screenbuffer.h>
#include <sys/mman.h>
#include <stdio.h>
#include <string.h>
#include <sysinfo.h>
#include <event.h>
#include <devmap.h>
#include <fibril_sync.h>
 
#include "console.h"
#include "gcons.h"
#include "screenbuffer.h"
 
#define NAME "console"
#define MAX_KEYREQUESTS_BUFFERED 32
 
#define MAX_DEVICE_NAME 32
#define NAME "CONSOLE"
 
/** Phone to the keyboard driver. */
static int kbd_phone;
/** Index of currently used virtual console.
*/
int active_console = 0;
 
/** Information about framebuffer */
/** Information about framebuffer
*/
struct {
int phone; /**< Framebuffer phone */
ipcarg_t cols; /**< Framebuffer columns */
ipcarg_t rows; /**< Framebuffer rows */
int color_cap; /**< Color capabilities (FB_CCAP_xxx) */
int phone; /**< Framebuffer phone */
ipcarg_t rows; /**< Framebuffer rows */
ipcarg_t cols; /**< Framebuffer columns */
} 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;
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;
 
/** Array of data for virtual consoles */
static console_t consoles[CONSOLE_COUNT];
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 */
 
static console_t *active_console = &consoles[0];
static console_t *prev_console = &consoles[0];
static console_t *kernel_console = &consoles[KERNEL_CONSOLE];
static int kernel_pixmap = -1; /**< Number of fb pixmap, where kernel
* console is stored */
 
/** 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)
/** Find unused virtual console.
*
*/
static int find_free_connection(void)
{
async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
int i;
for (i = 0; i < CONSOLE_COUNT; i++) {
if (!connections[i].used)
return i;
}
return -1;
}
 
static void curs_hide_sync(void)
static void clrscr(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)
static void curs_visibility(int v)
{
ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, v);
}
 
static void screen_reclaim(void)
static void curs_goto(int row, int col)
{
ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
}
 
static void kbd_yield(void)
static void set_style(style_t *style)
{
ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
async_msg_2(fb_info.phone, FB_SET_STYLE, style->fg_color,
style->bg_color);
}
 
static void kbd_reclaim(void)
static void set_style_col(int fgcolor, int bgcolor)
{
ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
async_msg_2(fb_info.phone, FB_SET_STYLE, fgcolor, bgcolor);
}
 
static void set_style(int style)
static void prtchr(char c, int row, int col)
{
async_msg_1(fb_info.phone, FB_SET_STYLE, style);
async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
}
 
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 int ccap_fb_to_con(int ccap_fb, int *ccap_con)
{
switch (ccap_fb) {
case FB_CCAP_NONE: *ccap_con = CONSOLE_CCAP_NONE; break;
case FB_CCAP_STYLE: *ccap_con = CONSOLE_CCAP_STYLE; break;
case FB_CCAP_INDEXED: *ccap_con = CONSOLE_CCAP_INDEXED; break;
case FB_CCAP_RGB: *ccap_con = CONSOLE_CCAP_RGB; break;
default: return EINVAL;
}
 
return EOK;
}
 
/** 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.
/** Check key and process special keys.
*
* 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)
static void write_char(int console, char key)
{
if (fb_pending.cnt != 0) {
if ((col != fb_pending.col + fb_pending.cnt)
|| (row != fb_pending.row)) {
fb_pending_flush();
}
}
screenbuffer_t *scr = &(connections[console].screenbuffer);
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) {
switch (key) {
case '\n':
fb_pending_flush();
flush_cursor = true;
cons->scr.position_y++;
cons->scr.position_x = 0;
scr->position_y++;
scr->position_x = 0;
break;
case '\r':
break;
case '\t':
cons->scr.position_x += 8;
cons->scr.position_x -= cons->scr.position_x % 8;
scr->position_x += 8;
scr->position_x -= scr->position_x % 8;
break;
case '\b':
if (cons->scr.position_x == 0)
if (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, ' ');
scr->position_x--;
if (console == active_console)
prtchr(' ', scr->position_y, scr->position_x);
screenbuffer_putchar(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++;
default:
if (console == active_console)
prtchr(key, scr->position_y, scr->position_x);
 
screenbuffer_putchar(scr, key);
scr->position_x++;
}
if (cons->scr.position_x >= cons->scr.size_x) {
flush_cursor = true;
cons->scr.position_y++;
}
scr->position_y += (scr->position_x >= scr->size_x);
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)
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);
}
 
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;
/** Save current screen to pixmap, draw old pixmap
*
* @param oldpixmap Old pixmap
* @return ID of pixmap of current screen
*/
static int switch_screens(int oldpixmap)
{
int newpmap;
/* Save screen */
newpmap = async_req_0_0(fb_info.phone, FB_VP2PIXMAP);
if (newpmap < 0)
return -1;
 
if (oldpixmap != -1) {
/* Show old screen */
async_msg_2(fb_info.phone, FB_VP_DRAW_PIXMAP, 0, oldpixmap);
/* Drop old pixmap */
async_msg_1(fb_info.phone, FB_DROP_PIXMAP, oldpixmap);
}
return newpmap;
}
 
/** Switch to new console */
static void change_console(console_t *cons)
static void change_console(int newcons)
{
if (cons == active_console)
connection_t *conn;
static int console_pixmap = -1;
int i, j, rc;
keyfield_t *field;
style_t *style;
 
if (newcons == active_console)
return;
fb_pending_flush();
if (cons == kernel_console) {
 
if (newcons == KERNEL_CONSOLE) {
if (active_console == KERNEL_CONSOLE)
return;
active_console = KERNEL_CONSOLE;
curs_visibility(0);
 
async_serialize_start();
curs_hide_sync();
gcons_in_kernel();
screen_yield();
kbd_yield();
if (kernel_pixmap == -1) {
/* store/restore unsupported */
set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
clrscr();
} else {
gcons_in_kernel();
console_pixmap = switch_screens(kernel_pixmap);
kernel_pixmap = -1;
}
async_serialize_end();
if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
prev_console = active_console;
active_console = kernel_console;
} else
cons = active_console;
 
__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE);
return;
}
async_serialize_start();
 
if (console_pixmap != -1) {
kernel_pixmap = switch_screens(console_pixmap);
console_pixmap = -1;
}
active_console = newcons;
gcons_change_console(newcons);
conn = &connections[active_console];
 
set_style(&conn->screenbuffer.style);
curs_visibility(0);
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 (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);
}
if ((!interbuffer) || (rc != 0)) {
set_style(&conn->screenbuffer.style);
clrscr();
style = &conn->screenbuffer.style;
 
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 (!style_same(*style, field->style))
set_style(&field->style);
style = &field->style;
if ((field->character == ' ') &&
(style_same(field->style,
conn->screenbuffer.style)))
continue;
 
prtchr(field->character, j, i);
}
/* 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();
}
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)
{
/* 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;
ipc_callid_t callid;
ipc_call_t call;
int retval;
int c;
connection_t *conn;
int newcon;
/* Ignore parameters, the connection is alread opened */
while (1) {
callid = async_get_call(&call);
switch (IPC_GET_METHOD(call)) {
case IPC_M_PHONE_HUNGUP:
/* TODO: Handle hangup */
return;
case KBD_EVENT:
/* Got event from keyboard driver. */
case KBD_MS_LEFT:
newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
if (newcon != -1)
change_console(newcon);
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);
break;
case KBD_MS_MOVE:
gcons_mouse_move(IPC_GET_ARG1(call),
IPC_GET_ARG2(call));
retval = 0;
break;
case KBD_PUSHCHAR:
/* got key from keyboard driver */
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);
retval = 0;
c = IPC_GET_ARG1(call);
/* switch to another virtual console */
conn = &connections[active_console];
/*
* if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 +
* CONSOLE_COUNT)) {
*/
if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) {
if (c == 0x112)
change_console(KERNEL_CONSOLE);
else
change_console(&consoles[ev.key - KC_F1]);
change_console(c - 0x101);
break;
}
fibril_mutex_lock(&input_mutex);
keybuffer_push(&active_console->keybuffer, &ev);
fibril_condvar_broadcast(&input_cv);
fibril_mutex_unlock(&input_mutex);
/* if client is awaiting key, send it */
if (conn->keyrequest_counter > 0) {
conn->keyrequest_counter--;
ipc_answer_1(fifo_pop(conn->keyrequests), EOK,
c);
break;
}
keybuffer_push(&conn->keybuffer, c);
retval = 0;
break;
default:
retval = ENOENT;
425,361 → 363,201
}
}
 
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;
int consnum;
ipcarg_t arg1, arg2;
connection_t *conn;
 
int cons_ccap;
int rc;
if ((consnum = find_free_connection()) == -1) {
ipc_answer_0(iid, ELIMIT);
return;
}
conn = &connections[consnum];
conn->used = 1;
async_serialize_start();
if (cons->refcount == 0)
gcons_notify_connect(cons->index);
gcons_notify_connect(consnum);
conn->client_phone = IPC_GET_ARG5(*icall);
screenbuffer_clear(&conn->screenbuffer);
cons->refcount++;
/* Accept the connection */
ipc_answer_0(iid, EOK);
while (true) {
 
while (1) {
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);
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 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);
}
case CONSOLE_PUTCHAR:
write_char(consnum, IPC_GET_ARG1(call));
gcons_notify_char(consnum);
break;
case CONSOLE_CLEAR:
/* Send message to fb */
if (cons == active_console)
async_msg_0(fb_info.phone, FB_CLEAR);
if (consnum == active_console) {
async_msg_0(fb_info.phone, FB_CLEAR);
}
screenbuffer_clear(&cons->scr);
screenbuffer_clear(&conn->screenbuffer);
break;
case CONSOLE_GOTO:
screenbuffer_goto(&cons->scr,
IPC_GET_ARG1(call), IPC_GET_ARG2(call));
if (cons == active_console)
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_GET_SIZE:
arg1 = fb_info.cols;
arg2 = fb_info.rows;
case CONSOLE_GETSIZE:
arg1 = fb_info.rows;
arg2 = fb_info.cols;
break;
case CONSOLE_GET_COLOR_CAP:
rc = ccap_fb_to_con(fb_info.color_cap, &cons_ccap);
if (rc != EOK) {
ipc_answer_0(callid, rc);
continue;
}
arg1 = cons_ccap;
case CONSOLE_FLUSH:
if (consnum == active_console)
async_req_0_0(fb_info.phone, FB_FLUSH);
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);
screenbuffer_set_style(&conn->screenbuffer, arg1,
arg2);
if (consnum == active_console)
set_style_col(arg1, arg2);
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)
conn->screenbuffer.is_cursor_visible = arg1;
if (consnum == 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);
case CONSOLE_GETCHAR:
if (keybuffer_empty(&conn->keybuffer)) {
/* buffer is empty -> store request */
if (conn->keyrequest_counter <
MAX_KEYREQUESTS_BUFFERED) {
fifo_push(conn->keyrequests, callid);
conn->keyrequest_counter++;
} else {
/*
* No key available and too many
* requests => fail.
*/
ipc_answer_0(callid, ELIMIT);
}
continue;
}
keybuffer_pop(&conn->keybuffer, (int *) &arg1);
break;
}
ipc_answer_3(callid, EOK, arg1, arg2, arg3);
ipc_answer_2(callid, EOK, arg1, arg2);
}
}
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
int main(int argc, char *argv[])
{
change_console(prev_console);
}
ipcarg_t phonehash;
int kbd_phone;
int i;
 
static bool console_init(void)
{
ipcarg_t color_cap;
async_set_client_connection(client_connection);
/* Connect to keyboard driver */
 
/* 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;
kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
while (kbd_phone < 0) {
usleep(10000);
kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
}
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;
}
if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
return -1;
async_new_connection(phonehash, 0, NULL, keyboard_events);
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;
fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
while (fb_info.phone < 0) {
usleep(10000);
fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
}
/* Save old kernel screen */
kernel_pixmap = switch_screens(-1);
 
/* Initialize gcons */
gcons_init(fb_info.phone);
/* Synchronize, the gcons could put something in queue */
/* 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.cols, &fb_info.rows);
async_req_0_1(fb_info.phone, FB_GET_COLOR_CAP, &color_cap);
fb_info.color_cap = color_cap;
/* Enable double buffering */
async_msg_2(fb_info.phone, FB_VIEWPORT_DB, (sysarg_t) -1, 1);
/* 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);
async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.rows,
&fb_info.cols);
set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
clrscr();
if (as_area_create(interbuffer, ib_size, AS_AREA_READ |
AS_AREA_WRITE | AS_AREA_CACHEABLE) != interbuffer)
interbuffer = NULL;
/* 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;
if (interbuffer) {
interbuffer = mmap(NULL,
sizeof(keyfield_t) * fb_info.cols * fb_info.rows,
PROTO_READ | PROTO_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
if (!interbuffer) {
if (ipc_share_out_start(fb_info.phone, interbuffer,
AS_AREA_READ) != EOK) {
as_area_destroy(interbuffer);
munmap(interbuffer,
sizeof(keyfield_t) * fb_info.cols * fb_info.rows);
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;
}
curs_visibility(
connections[active_console].screenbuffer.is_cursor_visible);
 
int main(int argc, char *argv[])
{
printf(NAME ": HelenOS Console service\n");
if (!console_init())
/* Register at NS */
if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, 0, &phonehash) != 0) {
return -1;
}
printf(NAME ": Accepting connections\n");
async_manager();
return 0;
 
return 0;
}
 
/** @}
*/