| 0,0 → 1,198 |
|---|
| /* |
| * Copyright (C) 2006 Ondrej Palkovsky |
| * 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. |
| */ |
| |
| /** @defgroup sysio SysIO |
| * @brief HelenOS framebuffer emulation via kernel. |
| * @ingroup fbs |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <async.h> |
| #include <ipc/fb.h> |
| #include <ipc/ipc.h> |
| #include <libc.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <libc.h> |
| #include <stdio.h> |
| |
| #include "sysio.h" |
| |
| #define WIDTH 80 |
| #define HEIGHT 25 |
| |
| /* Allow only 1 connection */ |
| static int client_connected = 0; |
| |
| static void sysput(char c) |
| { |
| __SYSCALL3(SYS_IO, 1, (sysarg_t)&c, (sysarg_t) 1); |
| } |
| |
| static void sysputs(char *s) |
| { |
| while (*s) { |
| sysput(*(s++)); |
| } |
| // __SYSCALL3(SYS_IO, 1, (sysarg_t)s, strlen(s)); |
| } |
| |
| /** Send clearscreen sequence to console */ |
| static void clrscr(void) |
| { |
| sysputs("\033[2J"); |
| } |
| |
| /** Send ansi sequence to console to change cursor position */ |
| static void curs_goto(unsigned int row, unsigned int col) |
| { |
| char control[20]; |
| |
| if (row > 200 || col > 200) |
| return; |
| |
| snprintf(control, 20, "\033[%d;%df",row+1, col+1); |
| sysputs(control); |
| } |
| |
| static void set_style(int mode) |
| { |
| char control[20]; |
| |
| snprintf(control, 20, "\033[%dm", mode); |
| sysputs(control); |
| } |
| |
| static void scroll(int i) |
| { |
| if (i > 0) { |
| curs_goto(HEIGHT-1, 0); |
| while (i--) |
| sysputs("\033D"); |
| } else if (i < 0) { |
| curs_goto(0,0); |
| while (i++) |
| sysputs("\033M"); |
| } |
| } |
| |
| /** ANSI terminal emulation main thread */ |
| static void sysio_client_connection(ipc_callid_t iid, ipc_call_t *icall) |
| { |
| int retval; |
| ipc_callid_t callid; |
| ipc_call_t call; |
| char c; |
| int lastcol=0; |
| int lastrow=0; |
| int newcol,newrow; |
| int fgcolor,bgcolor; |
| int i; |
| |
| if (client_connected) { |
| ipc_answer_fast(iid, ELIMIT, 0,0); |
| return; |
| } |
| |
| client_connected = 1; |
| ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */ |
| while (1) { |
| callid = async_get_call(&call); |
| switch (IPC_GET_METHOD(call)) { |
| case IPC_M_PHONE_HUNGUP: |
| client_connected = 0; |
| ipc_answer_fast(callid, 0, 0, 0); |
| return; /* Exit thread */ |
| case FB_PUTCHAR: |
| c = IPC_GET_ARG1(call); |
| newrow = IPC_GET_ARG2(call); |
| newcol = IPC_GET_ARG3(call); |
| if ((lastcol != newcol) || (lastrow != newrow)) |
| curs_goto(newrow, newcol); |
| lastcol = newcol + 1; |
| lastrow = newrow; |
| sysput(c); |
| retval = 0; |
| break; |
| case FB_CURSOR_GOTO: |
| newrow = IPC_GET_ARG1(call); |
| newcol = IPC_GET_ARG2(call); |
| curs_goto(newrow, newcol); |
| lastrow = newrow; |
| lastcol = newcol; |
| retval = 0; |
| break; |
| case FB_GET_CSIZE: |
| ipc_answer_fast(callid, 0, HEIGHT, WIDTH); |
| continue; |
| case FB_CLEAR: |
| clrscr(); |
| retval = 0; |
| break; |
| case FB_SET_STYLE: |
| fgcolor = IPC_GET_ARG1(call); |
| bgcolor = IPC_GET_ARG2(call); |
| if (fgcolor < bgcolor) |
| set_style(0); |
| else |
| set_style(7); |
| retval = 0; |
| break; |
| case FB_SCROLL: |
| i = IPC_GET_ARG1(call); |
| if ((i > HEIGHT) || (i < -HEIGHT)) { |
| retval = EINVAL; |
| break; |
| } |
| scroll(i); |
| curs_goto(lastrow, lastcol); |
| retval = 0; |
| break; |
| default: |
| retval = ENOENT; |
| } |
| |
| ipc_answer_fast(callid, retval, 0, 0); |
| } |
| } |
| |
| /** ANSI terminal emulation initialization */ |
| void sysio_init(void) |
| { |
| async_set_client_connection(sysio_client_connection); |
| clrscr(); |
| curs_goto(0,0); |
| /* Set scrolling region to 0-25 lines */ |
| sysputs("\033[0;25r"); |
| } |
| |
| /** |
| * @} |
| */ |