split vga and logging code out into vga-overlay.[ch]

diff --git a/aseg/Makefile b/aseg/Makefile
index 1c2867d43c67275c20e3d73fcf76e41f145f29a8..6d22af1975279d9343206f2f6f3e4c2506f6e178 100644 (file)
--- a/aseg/Makefile
+++ b/aseg/Makefile
@@ -1,6 +1,6 @@
 CC=gcc
 CFLAGS=-I../include -I../include/raw -nostdlib -nostdinc -fno-builtin -D__RAW__ -Wall -Werror -pedantic -ansi -std=gnu99
-OBJS=counter.o firstrun.o ../pci/pci-raw.o ../lib/minilib.o ../lib/console.o ../ich2/smram-ich2.o
+OBJS=counter.o firstrun.o ../pci/pci-raw.o ../lib/minilib.o ../lib/console.o ../ich2/smram-ich2.o vga-overlay.o
 
 all: aseg.elf
 

diff --git a/aseg/counter.c b/aseg/counter.c
index ccfff7254d9b355430ec336b8c1e2e13364d64e7..2b1d6ead45c953b80326be92bd7d8294a4ff62e4 100644 (file)
--- a/aseg/counter.c
+++ b/aseg/counter.c
@@ -3,77 +3,13 @@
 #include <video_defines.h>
 #include <minilib.h>
 
-unsigned int counter = 0;
-unsigned long pcisave;
-unsigned char vgasave;
 char thestr[512];
-char logents[4][41] = {{0}};
-
-#define VRAM_BASE              0xA0000UL
-#define TEXT_CONSOLE_OFFSET    0x18000UL 
-
-#define TEXT_CONSOLE_BASE      (VRAM_BASE + TEXT_CONSOLE_OFFSET)
-
-#define COLOR                  0x1F
-
-unsigned char vga_read(unsigned char idx)
-{
-       outb(CRTC_IDX_REG, idx);
-       return inb(CRTC_DATA_REG);
-}
-
-char * vga_base()
-{
-       return (char *) (
-               TEXT_CONSOLE_BASE
-               | (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 9)
-               | (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 1)
-       );
-}
-
-void strblit(char *src, int row, int col)
-{
-       char *destp = vga_base() + row * 80 * 2 + col * 2;
-       smram_state_t old_state = smram_save_state();
-
-       smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
-       
-       while (*src)
-       {
-               *(destp++) = *(src++);
-               *(destp++) = COLOR;
-       }
-
-       smram_restore_state(old_state);
-}
-
-void outlog()
-{
-       int y, x;
-       char *basep = vga_base();
 
-       smram_state_t old_state = smram_save_state();
-
-       smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
-
-       for (y = 0; y < 4; y++)
-               for (x = 40; x < 80; x++)
-               {
-                       basep[y*80*2+x*2] = ' ';
-                       basep[y*80*2+x*2+1] = 0x1F;
-               }
+#include "vga-overlay.h"
 
-       smram_restore_state(old_state);
-
-       for (y = 0; y < 4; y++)
-               strblit(logents[y], y, 40);
-}
-
-void dolog(char *s)
-{
-       memmove(logents[0], logents[1], sizeof(logents[0])*3);
-       strcpy(logents[3], s);
-}
+unsigned int counter = 0;
+unsigned long pcisave;
+unsigned char vgasave;
 
 void pci_dump() {
        char s[40];

diff --git a/aseg/vga-overlay.c b/aseg/vga-overlay.c
new file mode 100644 (file)
index 0000000..e5414ca
--- /dev/null
+++ b/aseg/vga-overlay.c
@@ -0,0 +1,72 @@
+#include <io.h>
+#include <smram.h>
+#include <video_defines.h>
+#include <minilib.h>
+
+static char logents[4][41] = {{0}};
+
+#define VRAM_BASE              0xA0000UL
+#define TEXT_CONSOLE_OFFSET    0x18000UL 
+
+#define TEXT_CONSOLE_BASE      (VRAM_BASE + TEXT_CONSOLE_OFFSET)
+
+#define COLOR                  0x1F
+
+static unsigned char vga_read(unsigned char idx)
+{
+       outb(CRTC_IDX_REG, idx);
+       return inb(CRTC_DATA_REG);
+}
+
+static char * vga_base()
+{
+       return (char *) (
+               TEXT_CONSOLE_BASE
+               | (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 9)
+               | (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 1)
+       );
+}
+
+void strblit(char *src, int row, int col)
+{
+       char *destp = vga_base() + row * 80 * 2 + col * 2;
+       smram_state_t old_state = smram_save_state();
+
+       smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
+       
+       while (*src)
+       {
+               *(destp++) = *(src++);
+               *(destp++) = COLOR;
+       }
+
+       smram_restore_state(old_state);
+}
+
+void outlog()
+{
+       int y, x;
+       char *basep = vga_base();
+
+       smram_state_t old_state = smram_save_state();
+
+       smram_aseg_set_state(SMRAM_ASEG_SMMCODE);
+
+       for (y = 0; y < 4; y++)
+               for (x = 40; x < 80; x++)
+               {
+                       basep[y*80*2+x*2] = ' ';
+                       basep[y*80*2+x*2+1] = 0x1F;
+               }
+
+       smram_restore_state(old_state);
+
+       for (y = 0; y < 4; y++)
+               strblit(logents[y], y, 40);
+}
+
+void dolog(char *s)
+{
+       memmove(logents[0], logents[1], sizeof(logents[0])*3);
+       strcpy(logents[3], s);
+}

diff --git a/aseg/vga-overlay.h b/aseg/vga-overlay.h
new file mode 100644 (file)
index 0000000..f79e6da
--- /dev/null
+++ b/aseg/vga-overlay.h
@@ -0,0 +1,9 @@
+#ifndef VGA_OVERLAY_H
+#define VGA_OVERLAY_H
+
+void strblit(char *src, int row, int col);
+
+void dolog(char *s);
+void outlog();
+
+#endif