WebSVN – HelenOS – Diff – /branches/network/uspace/srv/fb/ega.c

 /*
  * 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 egafb EGA framebuffer
  * @brief   HelenOS EGA framebuffer.
  * @ingroup fbs
  * @{
  */
 /** @file
  */
 #include <stdlib.h>
 #include <unistd.h>
 #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 <libarch/ddi.h>
+#include <console/style.h>
+#include <console/color.h>
+#include <sys/types.h>
 #include "ega.h"
 #include "../console/screenbuffer.h"
 #include "main.h"
 #define MAX_SAVED_SCREENS 256
 typedef struct saved_screen {
     short *data;
 } saved_screen;
 saved_screen saved_screens[MAX_SAVED_SCREENS];
-#define EGA_IO_ADDRESS 0x3d4
+#define EGA_IO_BASE ((ioport8_t *) 0x3d4)
 #define EGA_IO_SIZE 2
-#define NORMAL_COLOR       0x0f
+int ega_normal_color = 0x0f;
-#define INVERTED_COLOR     0xf0
+int ega_inverted_color = 0xf0;
-#define EGA_STYLE(fg,bg) ((fg) > (bg) ? NORMAL_COLOR : INVERTED_COLOR)
+#define NORMAL_COLOR        ega_normal_color
+#define INVERTED_COLOR      ega_inverted_color
 /* Allow only 1 connection */
 static int client_connected = 0;
 static unsigned int scr_width;
 static unsigned int scr_height;
 static char *scr_addr;
-static unsigned int style = NORMAL_COLOR;
+static unsigned int style;
+static unsigned attr_to_ega_style(const attrs_t *a);
 static void clrscr(void)
+{
     int i;
     for (i = 0; i < scr_width * scr_height; i++) {
         scr_addr[i * 2] = ' ';
         scr_addr[i * 2 + 1] = style;
+    }
+}
 static void cursor_goto(unsigned int row, unsigned int col)
+{
     int ega_cursor;
     ega_cursor = col + scr_width * row;
-    outb(EGA_IO_ADDRESS, 0xe);
+    pio_write_8(EGA_IO_BASE, 0xe);
-    outb(EGA_IO_ADDRESS + 1, (ega_cursor >> 8) & 0xff);
+    pio_write_8(EGA_IO_BASE + 1, (ega_cursor >> 8) & 0xff);
-    outb(EGA_IO_ADDRESS, 0xf);
+    pio_write_8(EGA_IO_BASE, 0xf);
-    outb(EGA_IO_ADDRESS + 1, ega_cursor & 0xff);
+    pio_write_8(EGA_IO_BASE + 1, ega_cursor & 0xff);
+}
 static void cursor_disable(void)
+{
     uint8_t stat;
-    outb(EGA_IO_ADDRESS, 0xa);
+    pio_write_8(EGA_IO_BASE, 0xa);
-    stat=inb(EGA_IO_ADDRESS + 1);
+    stat = pio_read_8(EGA_IO_BASE + 1);
-    outb(EGA_IO_ADDRESS, 0xa);
+    pio_write_8(EGA_IO_BASE, 0xa);
-    outb(EGA_IO_ADDRESS + 1, stat | (1 << 5));
+    pio_write_8(EGA_IO_BASE + 1, stat | (1 << 5));
+}
 static void cursor_enable(void)
+{
     uint8_t stat;
-    outb(EGA_IO_ADDRESS, 0xa);
+    pio_write_8(EGA_IO_BASE, 0xa);
-    stat=inb(EGA_IO_ADDRESS + 1);
+    stat = pio_read_8(EGA_IO_BASE + 1);
-    outb(EGA_IO_ADDRESS, 0xa);
+    pio_write_8(EGA_IO_BASE, 0xa);
-    outb(EGA_IO_ADDRESS + 1, stat & (~(1 << 5)));
+    pio_write_8(EGA_IO_BASE + 1, stat & (~(1 << 5)));
+}
 static void scroll(int rows)
+{
     int i;
     if (rows > 0) {
-        memcpy(scr_addr, ((char *) scr_addr) + rows * scr_width * 2,
+        memmove(scr_addr, ((char *) scr_addr) + rows * scr_width * 2,
             scr_width * scr_height * 2 - rows * scr_width * 2);
         for (i = 0; i < rows * scr_width; i++)
             (((short *) scr_addr) + scr_width * scr_height - rows *
                 scr_width)[i] = ((style << 8) + ' ');
     } else if (rows < 0) {
-        memcpy(((char *)scr_addr) - rows * scr_width * 2, scr_addr,
+        memmove(((char *)scr_addr) - rows * scr_width * 2, scr_addr,
             scr_width * scr_height * 2 + rows * scr_width * 2);
         for (i = 0; i < -rows * scr_width; i++)
             ((short *)scr_addr)[i] = ((style << 8 ) + ' ');
+    }
+}
 static void printchar(char c, unsigned int row, unsigned int col)
+{
     scr_addr[(row * scr_width + col) * 2] = c;
     scr_addr[(row * scr_width + col) * 2 + 1] = style;
     cursor_goto(row, col + 1);
+}
 static void draw_text_data(keyfield_t *data)
+{
     int i;
     for (i = 0; i < scr_width * scr_height; i++) {
         scr_addr[i * 2] = data[i].character;
-        scr_addr[i * 2 + 1] = EGA_STYLE(data[i].style.fg_color,
+        scr_addr[i * 2 + 1] = attr_to_ega_style(&data[i].attrs);
-            data[i].style.bg_color);
+    }
+}
 static int save_screen(void)
+{
     int i;
     for (i = 0; (i < MAX_SAVED_SCREENS) && (saved_screens[i].data); i++)
+        ;
     if (i == MAX_SAVED_SCREENS)
         return EINVAL;
     if (!(saved_screens[i].data = malloc(2 * scr_width * scr_height)))
         return ENOMEM;
     memcpy(saved_screens[i].data, scr_addr, 2 * scr_width * scr_height);
     return i;
+}
 static int print_screen(int i)
+{
     if (saved_screens[i].data)
         memcpy(scr_addr, saved_screens[i].data, 2 * scr_width *
             scr_height);
     else
         return EINVAL;
     return i;
+}
+static int style_to_ega_style(int style)
+{
+    unsigned int ega_style;
+    switch (style) {
+    case STYLE_NORMAL:
+        ega_style = INVERTED_COLOR;
+        break;
+    case STYLE_EMPHASIS:
+        ega_style = INVERTED_COLOR | 4;
+        break;
+    default:
+        return INVERTED_COLOR;
+    }
+    return ega_style;
+}
+static unsigned int color_to_ega_style(int fg_color, int bg_color, int attr)
+{
+    unsigned int style;
+    style = (fg_color & 7) | ((bg_color & 7) << 4);
+    if (attr & CATTR_BRIGHT)
+        style = style | 0x08;
+    return style;
+}
+static unsigned int rgb_to_ega_style(uint32_t fg, uint32_t bg)
+{
+    return (fg > bg) ? NORMAL_COLOR : INVERTED_COLOR;
+}
+static unsigned attr_to_ega_style(const attrs_t *a)
+{
+    switch (a->t) {
+    case at_style: return style_to_ega_style(a->a.s.style);
+    case at_rgb: return rgb_to_ega_style(a->a.r.fg_color, a->a.r.bg_color);
+    case at_idx: return color_to_ega_style(a->a.i.fg_color,
+        a->a.i.bg_color, a->a.i.flags);
+    default: return INVERTED_COLOR;
+    }
+}
 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;
-    int bgcolor,fgcolor;
+    int bg_color, fg_color, attr;
+    uint32_t bg_rgb, fg_rgb;
     keyfield_t *interbuf = NULL;
     size_t intersize = 0;
     int i;
     if (client_connected) {
         ipc_answer_0(iid, ELIMIT);
         return;
+    }
     client_connected = 1;
     ipc_answer_0(iid, EOK); /* Accept connection */
     while (1) {
         callid = async_get_call(&call);
         switch (IPC_GET_METHOD(call)) {
         case IPC_M_PHONE_HUNGUP:
             client_connected = 0;
             ipc_answer_0(callid, EOK);
             return; /* Exit thread */
         case IPC_M_SHARE_OUT:
             /* We accept one area for data interchange */
             intersize = IPC_GET_ARG2(call);
             if (intersize >= scr_width * scr_height *
                 sizeof(*interbuf)) {
                 receive_comm_area(callid, &call,
                     (void *) &interbuf);
                 continue;
+            }
             retval = EINVAL;
             break;
         case FB_DRAW_TEXT_DATA:
             if (!interbuf) {
                 retval = EINVAL;
                 break;
+            }
             draw_text_data(interbuf);
             retval = 0;
             break;
         case FB_GET_CSIZE:
             ipc_answer_2(callid, EOK, scr_height, scr_width);
             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 (col >= scr_width || row >= scr_height) {
                 retval = EINVAL;
                 break;
+            }
             printchar(c, row, col);
             retval = 0;
             break;
         case FB_CURSOR_GOTO:
             row = IPC_GET_ARG1(call);
             col = IPC_GET_ARG2(call);
             if (row >= scr_height || col >= scr_width) {
                 retval = EINVAL;
                 break;
+            }
             cursor_goto(row, col);
             retval = 0;
             break;
         case FB_SCROLL:
             i = IPC_GET_ARG1(call);
             if (i > scr_height || i < -((int) scr_height)) {
                 retval = EINVAL;
                 break;
+            }
             scroll(i);
             retval = 0;
             break;
         case FB_CURSOR_VISIBILITY:
-            if(IPC_GET_ARG1(call))
+            if (IPC_GET_ARG1(call))
                 cursor_enable();
             else
                 cursor_disable();
             retval = 0;
             break;
         case FB_SET_STYLE:
+            style = style_to_ega_style(IPC_GET_ARG1(call));
+            retval = 0;
+            break;
+        case FB_SET_COLOR:
-            fgcolor = IPC_GET_ARG1(call);
+            fg_color = IPC_GET_ARG1(call);
-            bgcolor = IPC_GET_ARG2(call);
+            bg_color = IPC_GET_ARG2(call);
+            attr = IPC_GET_ARG3(call);
-            style = EGA_STYLE(fgcolor, bgcolor);
+            style = color_to_ega_style(fg_color, bg_color, attr);
+            retval = 0;
+            break;
+        case FB_SET_RGB_COLOR:
+            fg_rgb = IPC_GET_ARG1(call);
+            bg_rgb = IPC_GET_ARG2(call);
+            style = rgb_to_ega_style(fg_rgb, bg_rgb);
             retval = 0;
             break;
         case FB_VP_DRAW_PIXMAP:
             i = IPC_GET_ARG2(call);
             retval = print_screen(i);
             break;
         case FB_VP2PIXMAP:
             retval = save_screen();
             break;
         case FB_DROP_PIXMAP:
             i = IPC_GET_ARG1(call);
             if (i >= MAX_SAVED_SCREENS) {
                 retval = EINVAL;
                 break;
+            }
             if (saved_screens[i].data) {
                 free(saved_screens[i].data);
                 saved_screens[i].data = NULL;
+            }
             retval = 0;
             break;
         default:
             retval = ENOENT;
+        }
         ipc_answer_0(callid, retval);
+    }
+}
 int ega_init(void)
+{
     void *ega_ph_addr;
     size_t sz;
     ega_ph_addr = (void *) sysinfo_value("fb.address.physical");
     scr_width = sysinfo_value("fb.width");
     scr_height = sysinfo_value("fb.height");
+    if (sysinfo_value("fb.blinking")) {
+        ega_normal_color &= 0x77;
+        ega_inverted_color &= 0x77;
+    }
+    style = NORMAL_COLOR;
-    iospace_enable(task_get_id(), (void *) EGA_IO_ADDRESS, 2);
+    iospace_enable(task_get_id(), (void *) EGA_IO_BASE, 2);
     sz = scr_width * scr_height * 2;
     scr_addr = as_get_mappable_page(sz);
-    physmem_map(ega_ph_addr, scr_addr, ALIGN_UP(sz, PAGE_SIZE) >>
+    if (physmem_map(ega_ph_addr, scr_addr, ALIGN_UP(sz, PAGE_SIZE) >>
-        PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
+        PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
+        return -1;
     async_set_client_connection(ega_client_connection);
     return 0;
+}
 /**
  * @}
  */

Subversion Repositories HelenOS

(root)/branches/network/uspace/srv/fb/ega.c – Rev 3386 → 4153