Subversion Repositories HelenOS

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Ignore whitespace Rev 4163 → Rev 4164

/trunk/uspace/srv/console/console.c
89,8 → 89,25
* with framebufer used for
* faster virtual console
* switching */
/** Size of fb_buf. */
#define FB_BUF_SIZE 256
 
/** Buffer for sending characters to FB driver. */
static char fb_buf[FB_BUF_SIZE];
 
/* Properties of fb_buf data. */
static int fb_buf_row; /**< Row where fb_buf data belong. */
static int fb_buf_col; /**< Column where fb_buf data start. */
static int fb_console; /**< VC to which fb_buf data belong. */
int fb_bi = 0; /**< Number of valid chars in fb_buf. */
 
/** Size of cwrite_buf. */
#define CWRITE_BUF_SIZE 256
 
/** Buffer for receiving data via the CONSOLE_WRITE call from the client. */
static char cwrite_buf[CWRITE_BUF_SIZE];
 
 
/** Find unused virtual console.
*
*/
158,9 → 175,66
}
}
 
/** Write a character vector to FB driver via IPC. */
static ssize_t fb_write(const char *buf, size_t nbyte, int row, int col)
{
ipcarg_t rc;
ipc_call_t answer;
aid_t req;
 
async_serialize_start();
req = async_send_2(fb_info.phone, FB_WRITE, row, col, &answer);
rc = ipc_data_write_start(fb_info.phone, (void *) buf, nbyte);
 
if (rc != EOK) {
async_wait_for(req, NULL);
async_serialize_end();
return (ssize_t) rc;
}
 
async_wait_for(req, &rc);
async_serialize_end();
 
if (rc == EOK)
return (ssize_t) IPC_GET_ARG1(answer);
else
return -1;
}
 
/** Flush buffered characters to FB. */
static void fb_buf_flush(void)
{
screenbuffer_t *scr;
int i;
 
scr = &(connections[fb_console].screenbuffer);
 
if (fb_bi > 0) {
if (fb_write(fb_buf, fb_bi, fb_buf_row, fb_buf_col) < 0) {
/* Try falling back to char-by-char. */
for (i = 0; i < fb_bi; i++) {
async_msg_3(fb_info.phone, FB_PUTCHAR, fb_buf[i],
fb_buf_row, fb_buf_col + i);
}
}
fb_bi = 0;
}
}
 
/** Print a character to the active VC with buffering. */
static void prtchr(char c, int row, int col)
{
async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
if (fb_bi >= FB_BUF_SIZE)
fb_buf_flush();
 
if (fb_bi == 0) {
fb_buf_row = row;
fb_buf_col = col;
fb_console = active_console;
}
 
fb_buf[fb_bi++] = c;
}
 
/** Check key and process special keys.
169,20 → 243,26
*/
static void write_char(int console, char key)
{
bool flush_cursor = false;
screenbuffer_t *scr = &(connections[console].screenbuffer);
 
switch (key) {
case '\n':
fb_buf_flush();
flush_cursor = true;
scr->position_y++;
scr->position_x = 0;
break;
case '\r':
fb_buf_flush();
break;
case '\t':
fb_buf_flush();
scr->position_x += 8;
scr->position_x -= scr->position_x % 8;
break;
case '\b':
fb_buf_flush();
if (scr->position_x == 0)
break;
scr->position_x--;
197,9 → 277,13
screenbuffer_putchar(scr, key);
scr->position_x++;
}
 
if (scr->position_x >= scr->size_x) {
fb_buf_flush();
flush_cursor = true;
scr->position_y++;
}
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);
207,12 → 291,11
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)
 
if (console == active_console && flush_cursor)
curs_goto(scr->position_y, scr->position_x);
}
 
/** Switch to new console */
225,7 → 308,9
if (newcons == active_console)
return;
 
fb_buf_flush();
 
if (newcons == KERNEL_CONSOLE) {
async_serialize_start();
curs_hide_sync();
360,6 → 445,31
}
}
 
/** Handle CONSOLE_WRITE call. */
static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)
{
ipc_callid_t callid;
size_t len;
size_t i;
 
if (!ipc_data_write_receive(&callid, &len)) {
ipc_answer_0(callid, EINVAL);
ipc_answer_0(rid, EINVAL);
}
 
if (len > CWRITE_BUF_SIZE)
len = CWRITE_BUF_SIZE;
 
(void) ipc_data_write_finalize(callid, cwrite_buf, len);
 
for (i = 0; i < len; i++) {
write_char(consnum, cwrite_buf[i]);
}
 
gcons_notify_char(consnum);
ipc_answer_1(rid, EOK, len);
}
 
/** Default thread for new connections */
static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
411,6 → 521,9
write_char(consnum, IPC_GET_ARG1(call));
gcons_notify_char(consnum);
break;
case CONSOLE_WRITE:
cons_write(consnum, callid, &call);
continue;
case CONSOLE_CLEAR:
/* Send message to fb */
if (consnum == active_console) {
421,6 → 534,7
break;
case CONSOLE_GOTO:
fb_buf_flush();
screenbuffer_goto(&conn->screenbuffer,
IPC_GET_ARG2(call), IPC_GET_ARG1(call));
if (consnum == active_console)
432,10 → 546,12
arg2 = fb_info.cols;
break;
case CONSOLE_FLUSH:
fb_buf_flush();
if (consnum == active_console)
async_req_0_0(fb_info.phone, FB_FLUSH);
break;
case CONSOLE_SET_STYLE:
fb_buf_flush();
arg1 = IPC_GET_ARG1(call);
screenbuffer_set_style(&conn->screenbuffer, arg1);
if (consnum == active_console)
442,6 → 558,7
set_style(arg1);
break;
case CONSOLE_SET_COLOR:
fb_buf_flush();
arg1 = IPC_GET_ARG1(call);
arg2 = IPC_GET_ARG2(call);
arg3 = IPC_GET_ARG3(call);
451,6 → 568,7
set_color(arg1, arg2, arg3);
break;
case CONSOLE_SET_RGB_COLOR:
fb_buf_flush();
arg1 = IPC_GET_ARG1(call);
arg2 = IPC_GET_ARG2(call);
screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,
459,6 → 577,7
set_rgb_color(arg1, arg2);
break;
case CONSOLE_CURSOR_VISIBILITY:
fb_buf_flush();
arg1 = IPC_GET_ARG1(call);
conn->screenbuffer.is_cursor_visible = arg1;
if (consnum == active_console)