| 0,0 → 1,134 |
|---|
| /* |
| * 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. |
| */ |
| |
| #include <align.h> |
| #include <async.h> |
| #include <ipc/ipc.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <ddi.h> |
| #include <sysinfo.h> |
| #include <as.h> |
| #include <ipc/fb.h> |
| #include <ipc/ipc.h> |
| #include <ipc/ns.h> |
| #include <ipc/services.h> |
| |
| #include "ega.h" |
| |
| /* Allow only 1 connection */ |
| static int client_connected = 0; |
| |
| static unsigned int scr_width; |
| static unsigned int scr_height; |
| static char *scr_addr; |
| |
| static void clrscr(void) |
| { |
| int i; |
| |
| for (i=0; i < scr_width*scr_height; i++) |
| scr_addr[i*2] = ' '; |
| } |
| |
| static void printchar(char c, unsigned int row, unsigned int col) |
| { |
| scr_addr[(row*scr_width + col)*2] = c; |
| } |
| |
| static void ega_client_connection(ipc_callid_t iid, ipc_call_t *icall) |
| { |
| int retval; |
| ipc_callid_t callid; |
| ipc_call_t call; |
| char c; |
| unsigned int row, col; |
| |
| 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_GET_CSIZE: |
| ipc_answer_fast(callid, 0, scr_width, scr_height); |
| continue; |
| case FB_CLEAR: |
| clrscr(); |
| retval = 0; |
| break; |
| case FB_PUTCHAR: |
| c = IPC_GET_ARG1(call); |
| row = IPC_GET_ARG2(call); |
| col = IPC_GET_ARG3(call); |
| if (row >= scr_width || col >= scr_height) { |
| retval = EINVAL; |
| break; |
| } |
| printchar(c,row,col); |
| retval = 0; |
| break; |
| default: |
| retval = ENOENT; |
| } |
| ipc_answer_fast(callid,retval,0,0); |
| } |
| } |
| |
| int ega_init(void) |
| { |
| void *ega_ph_addr; |
| |
| |
| ega_ph_addr=(void *)sysinfo_value("fb.address.physical"); |
| scr_width=sysinfo_value("fb.width"); |
| scr_height=sysinfo_value("fb.height"); |
| |
| scr_addr=(void *)ALIGN_UP(((__address)set_maxheapsize(USER_ADDRESS_SPACE_SIZE_ARCH>>1)),PAGE_SIZE); |
| |
| if (ega_ph_addr != ALIGN_DOWN((unsigned long)ega_ph_addr, PAGE_SIZE)) |
| return -1; |
| |
| map_physmem(ega_ph_addr, scr_addr, (scr_width*scr_height+PAGE_SIZE-1)>>PAGE_WIDTH, |
| AS_AREA_READ | AS_AREA_WRITE); |
| |
| |
| async_set_client_connection(ega_client_connection); |
| |
| clrscr(); |
| |
| return 0; |
| } |