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feat: ajout d'une gestion de pilotes video dans la projection de faire un pilote VBE/VESA

This commit is contained in:
Nicolas Hordé 2018-10-12 20:37:26 +02:00
parent 5683c69311
commit 86c4e4550e
10 changed files with 694 additions and 736 deletions
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2
include/2d.h
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@ -8,7 +8,7 @@ typedef struct vertex2d{
u32 y; u32 y;
} vertex2d __attribute__ ((packed)); } vertex2d __attribute__ ((packed));
void writepxl (u16 x, u16 y, u32 c);
void line(u32 x1, u32 y1, u32 x2, u32 y2, u8 color); void line(u32 x1, u32 y1, u32 x2, u32 y2, u8 color);
void linev(vertex2d *A, vertex2d *B, u8 color); void linev(vertex2d *A, vertex2d *B, u8 color);
void hline(u32 x1, u32 x2, u32 y, u8 color); void hline(u32 x1, u32 x2, u32 y, u8 color);

140
include/vga.h
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@ -6,41 +6,109 @@
#define TEXTSCREEN 0xB8000 /* debut de la memoire video texte*/ #define TEXTSCREEN 0xB8000 /* debut de la memoire video texte*/
#define GRPHSCREEN 0xA0000 /* debut de la memoire video graphique*/ #define GRPHSCREEN 0xA0000 /* debut de la memoire video graphique*/
typedef u8 mode_def[64]; /* Registres VGAs */
#define sequencer 0x3c4
#define misc_write 0x3c2
#define misc_read 0x3cc
#define ccrt 0x3D4
#define attribs 0x3c0
#define graphics 0x3ce
#define state 0x3da
u32 setvmode(u8); /* Taille d'un plan de bit */
u32 loadfont(u8* def,u8 size,u8 font);
void gotoscr(u16 x,u16 y); #define planesize 0x10000
void useplane(u8 plan);
u8 getfont(void); /* Registres VGA */
void setfont(u8 num); typedef struct misc_regs {
void waitvretrace(void); u8 Miscellaneous_Output_Register;
void waithretrace(void); } misc_reg __attribute__ ((packed));
void enablecursor(void);
void disablecursor(void); typedef struct sequencer_regs {
void enablescroll(void); u8 Reset_Register;
void disablescroll(void); u8 Clocking_Mode_Register;
void (*writepxl)(u16 x, u16 y, u32 c); u8 Map_Mask_Register;
void (*showchar)(u16 coordx,u16 coordy,u8 thechar,u8 attrib); u8 Character_Map_Select_Register;
void (*fill)(u8 attrib); u8 Sequencer_Memory_Mode_Register;
void (*scroll)(u8 lines,u8 attrib); } sequencer_reg __attribute__ ((packed));
void split(u16 x);
void showpage(u8 page); typedef struct crtc_regs {
u8 getpage(); u8 Horizontal_Total_Register;
void setpage(u8 page); u8 End_Horizontal_Display_Register;
u16 getnbpages(void); u8 Start_Horizontal_Blanking_Register;
u16 getyres(void); u8 End_Horizontal_Blanking_Register;
u8 getdepth(void); u8 Start_Horizontal_Retrace_Register;
u16 getxres(void); u8 End_Horizontal_Retrace_Register;
u8 getfont2(void); u8 Vertical_Total_Register;
void enableblink(void); u8 Overflow_Register;
void disableblink(void); u8 Preset_Row_Scan_Register;
u8 (*getchar)(u16 coordx,u16 coordy); u8 Maximum_Scan_Line_Register;
u8 (*getattrib)(u16 coordx,u16 coordy); u8 Cursor_Start_Register;
void outreg(u16 port,u8 *src,u16 num); u8 Cursor_End_Register;
void outregsame(u16 port,u8 *src,u16 num); u8 Start_Address_High_Register;
void inreg(u16 port,u8 *src,u16 num); u8 Start_Address_Low_Register;
void inregsame(u16 port,u8 *src,u16 num); u8 Cursor_Location_High_Register;
u8 nextvmode(void); u8 Cursor_Location_Low_Register;
u8 getvmode(void); u8 Vertical_Retrace_Start_Register;
u8 Vertical_Retrace_End_Register;
u8 Vertical_Display_End_Register;
u8 Offset_Register;
u8 Underline_Location_Register;
u8 Start_Vertical_Blanking_Register;
u8 End_Vertical_Blanking;
u8 CRTC_Mode_Control_Register;
u8 Line_Compare_Register;
} crtc_regs __attribute__ ((packed));
typedef struct graphics_regs {
u8 Set_Reset_Register;
u8 Enable_Set_Reset_Register;
u8 Color_Compare_Register;
u8 Data_Rotate_Register;
u8 Read_Map_Select_Register;
u8 Graphics_Mode_Register;
u8 Miscellaneous_Graphics_Register;
u8 Color_Dont_Care_Register;
u8 Bit_Mask_Register;
} graphics_regs __attribute__ ((packed));
typedef struct attributs_regs {
u8 Palette Registers[16];
u8 Attribute_Mode_Control_Register;
u8 Overscan_Color_Register;
u8 Color_Plane_Enable_Register;
u8 Horizontal_Pixel_Panning_Register;
u8 Color_Select_Register;
} attributs_regs __attribute__ ((packed));
typedef struct vgamode {
misc_regs misc;
sequencer_regs sequencer;
crtc_regs ctrc;
graphics_regs graphic;
attributs_regs attribut;
} vgamode __attribute__ ((packed));
/* fonction obligatoires */
u8 *VGA_detect_hardware (void);
u8 VGA_setvideo_mode (u8 mode);
u8 *VGA_getvideo_drivername (void);
u8 *VGA_getvideo_capabilities (void);
videoinfos *VGA_getvideo_info (void);
u32 VGA_mem_to_video (void *src,u32 dst, u32 size, bool increment_src);
u32 VGA_video_to_mem (u32 src,void *dst, u32 size);
u32 VGA_video_to_video (u32 src,u32 dst, u32 size);
void VGA_wait_vretrace (void);
void VGA_wait_hretrace (void);
void VGA_page_set (u8 page);
void VGA_page_show (u8 page);
void VGA_page_split (u16 y);
void VGA_cursor_enable (void);
void VGA_cursor_disable (void);
void VGA_cursor_set (u16 x,u16 y);
u32 VGA_font_load (u8 * def, u8 size, u8 font);
void VGA_font1_set (u8 num);
void VGA_font2_set (u8 num);
void VGA_blink_enable (void);
void VGA_blink_disable (void);

106
include/video.h
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@ -4,6 +4,42 @@
#include "stdarg.h" #include "stdarg.h"
#define maxdrivers 10
typedef struct drivers {
u8* nom;
videofonction* pointer;
}
typedef struct capabilities {
u8 modenumber;
u16 width;
u16 height;
bool graphic;
u8 depth;
u8 refresh;
}
typedef struct videoinfos {
u8 currentmode
u16 currentwidth;
u16 currentheight;
u8 currentdepth;
u8 currentactivepage;
u8 currentshowedpage;
u16 currentcursorX;
u16 currentcursorY;
u8 currentfont1;
u8 currentfont2;
u16 currentpitch;
bool isgraphic;
bool isblinking;
bool iscursorvisible;
u8 pagesnumber;
u32 pagesize;
u32 baseaddress;
} videoinfos __attribute__ ((packed));
typedef struct console { typedef struct console {
u8 attrib; u8 attrib;
s16 cursX; s16 cursX;
@ -15,10 +51,45 @@ typedef struct console {
u8 page; u8 page;
} console __attribute__ ((packed)); } console __attribute__ ((packed));
typedef struct videofonction {
u8 *(*detect_hardware) (void);
u8 (*setvideo_mode) (u8 mode);
u8 *(*getvideo_drivername) (void);
u8 *(*getvideo_capabilities) (void);
videoinfos *(*getvideo_info) (void);
u32 (*mem_to_video) (void *src,u32 dst, u32 size, bool increment_src);
u32 (*video_to_mem) (u32 src,void *dst, u32 size);
u32 (*video_to_video) (u32 src,u32 dst, u32 size);
void (*wait_vretrace) (void);
void (*wait_hretrace) (void);
void (*page_set) (u8 page);
void (*page_show) (u8 page);
void (*page_split) (u16 y);
void (*cursor_enable) (void);
void (*cursor_disable) (void);
void (*cursor_set) (u16 x,u16 y);
u32 (*font_load) (u8 * def, u8 size, u8 font);
void (*font1_set) (u8 num);
void (*font2_set) (u8 num);
void (*blink_enable) (void);
void (*blink_disable) (void);
} videofonction __attribute__ ((packed));
void showhex(u8 src); /* Fonctions de bas niveau */
void fill(u8 attrib);
void scroll (u8 lines, u8 attrib);
void scroll_enable(void);
void scroll_disable(void);
void showchar (u16 coordx, u16 coordy, u8 thechar, u8 attrib);
u8 getchar (u16 coordx, u16 coordy);
u8 getattrib (u16 coordx, u16 coordy);
/* Fonctions de console */
void changevc(u8 vc);
void putchar(u8 thechar); void putchar(u8 thechar);
void clearscreen(void); void clearscreen(void);
/* Fonctions de haut niveau */
u32 print(u8* string); u32 print(u8* string);
u32 printf (const u8 *string, ...); u32 printf (const u8 *string, ...);
u32 sprintf(u8 *variable, const u8 *string, ...); u32 sprintf(u8 *variable, const u8 *string, ...);
@ -26,9 +97,40 @@ u32 snprintf(u8 *variable, u32 maxsize, const u8 *string, ...);
u32 vprintf(const u8 * string, va_list args); u32 vprintf(const u8 * string, va_list args);
u32 vsprintf(u8 *variable, const u8 *string, va_list args); u32 vsprintf(u8 *variable, const u8 *string, va_list args);
u32 vsnprintf(u8 *variable, u32 maxsize, const u8 *string, va_list args); u32 vsnprintf(u8 *variable, u32 maxsize, const u8 *string, va_list args);
void changevc(u8 vc);
u8* itoa(u64 num, u8* str, u8 base, u64 dim, u8 achar); u8* itoa(u64 num, u8* str, u8 base, u64 dim, u8 achar);
u8* sitoa(u64 num, u8 * str, u64 dim); u8* sitoa(u64 num, u8 * str, u64 dim);
u8* rtoadouble(double num, u8 * str, u8 precisioni , u8 precisionf); u8* rtoadouble(double num, u8 * str, u8 precisioni , u8 precisionf);
u8* rtoasingle(float num, u8 * str, u8 precisioni , u8 precisionf); u8* rtoasingle(float num, u8 * str, u8 precisioni , u8 precisionf);
u32 format(const u8 * string, va_list args, u32 maxsize, u32 (*fonction)(u8* src, u8** dest, u32 len), u8* dest); u32 format(const u8 * string, va_list args, u32 maxsize, u32 (*fonction)(u8* src, u8** dest, u32 len), u8* dest);
/* Fonction pour gérer le pilote */
void initdriver();
void registerdriver(videofonction *pointer);
void apply_bestdriver(void);
void apply_nextdriver(void);
void apply_driver(u8* name);
void apply_nextvideomode(void);
/* Fonctions du pilote */
u8 *(*detect_hardware) (void);
u8 (*setvideo_mode) (u8 mode);
u8 *(*getvideo_drivername) (void);
u8 *(*getvideo_capabilities) (void);
videoinfos *(*getvideo_info) (void);
u32 (*mem_to_video) (void *src,u32 dst, u32 size, bool increment_src);
u32 (*video_to_mem) (u32 src,void *dst, u32 size);
u32 (*video_to_video) (u32 src,u32 dst, u32 size);
void (*wait_vretrace) (void);
void (*wait_hretrace) (void);
void (*page_set) (u8 page);
void (*page_show) (u8 page);
void (*page_split) (u16 y);
void (*cursor_enable) (void);
void (*cursor_disable) (void);
void (*cursor_set) (u16 x,u16 y);
u32 (*font_load) (u8 * def, u8 size, u8 font);
void (*font1_set) (u8 num);
void (*font2_set) (u8 num);
void (*blink_enable) (void);
void (*blink_disable) (void);

278
lib/VGA/modes.c
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@ -4,220 +4,120 @@
/* definition des registres de la carte VGA pour differents modes */ /* definition des registres de la carte VGA pour differents modes */
#define maxgraphmode 11 #define nbmodes 9
#define maxtextmode 5
static mode_def textmodes[maxtextmode] = { static capabilities vgacapabilities[nbmodes] = {
{0x00, 80, 25,false, 4, 0},
/*40*25 16 couleurs mode 0x00 */ {0x01, 80, 50,false, 4, 0},
{ {0x80,640,480,true , 1, 0},
0x67, {0x81,320,200,true , 2, 0},
0x03, 0x08, 0x03, 0x00, 0x02, {0x82,640,480,true , 4, 0},
0x2D, 0x27, 0x28, 0x90, 0x2B, 0xA0, 0xBF, 0x1F, 0x00, {0x83,320,200,true , 8, 0},
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00, {0x84,320,400,true , 8, 0},
0x9C, 0x8E, 0x8F, 0x14, 0x1F, 0x96, 0xB9, 0xA3, 0xFF, {0x85,320,480,true , 8, 0},
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF, {0x86,360,480,true , 8, 0},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, {0xFF,000,000,false, 0, 0},
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
45, 25, 4},
/*80*25 16 couleurs mode 0x01 */
{
0x67,
0x03, 0x00, 0x03, 0x00, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
80, 25, 4},
/*80*50 16 couleurs mode 0x02 */
{
0x63,
0x03, 0x01, 0x03, 0x05, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
80, 50, 4},
/*100*50 16 couleurs mode 0x03 */
{
0x67,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x32, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 50, 4},
/*100*60 16 couleurs mode 0x04 */
{
0xA7,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xFF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xE7, 0x8E, 0xDF, 0x32, 0x1F, 0xDF, 0xE5, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 60, 4}
}; };
static mode_def graphmodes[maxgraphmode] = {
static vgamode modes[nbmodes] = {
/*80*25 16 couleurs mode 0x00 */
{{0x67},
{0x03, 0x00, 0x03, 0x00, 0x02},
{0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF},
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00}},
/*80*50 16 couleurs mode 0x01 */
{{0x63},
{0x03, 0x01, 0x03, 0x05, 0x02},
{0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF},
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00}},
/*640*480 n&b mode 0x80 */ /*640*480 n&b mode 0x80 */
{ {{0xE3},
0xE3, {0x03, 0x01, 0x0F, 0x00, 0x06},
0x03, 0x01, 0x0F, 0x00, 0x06, {0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF, 0xEA, 0x0C, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00, 0x01, 0x00, 0x0F, 0x00, 0x00}},
80, 60, 1},
/*320*200 4 couleurs mode 0x81 */ /*320*200 4 couleurs mode 0x81 */
{ {{0x63},
0x63, {0x03, 0x09, 0x03, 0x00, 0x02},
0x03, 0x09, 0x03, 0x00, 0x02, {0x2D, 0x27, 0x28, 0x90, 0x2B, 0x80, 0xBF, 0x1F, 0x00,
0x2D, 0x27, 0x28, 0x90, 0x2B, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x14, 0x00, 0x96, 0xB9, 0xA3, 0xFF, 0x9C, 0x0E, 0x8F, 0x14, 0x00, 0x96, 0xB9, 0xA3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x02, 0x00, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x02, 0x00, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x03, 0x00, 0x00, 0x01, 0x00, 0x03, 0x00, 0x00}},
40, 25,
},
/*640*480 16 couleurs mode 0x82 */ /*640*480 16 couleurs mode 0x82 */
{ {{0xE3},
0xE3, {0x03, 0x01, 0x0F, 0x00, 0x06},
0x03, 0x01, 0x0F, 0x00, 0x06, {0x5F, 0x4F, 0x50, 0x82, 0x53, 0x9F, 0x0B, 0x3E, 0x00,
0x5F, 0x4F, 0x50, 0x82, 0x53, 0x9F, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xE9, 0x8B, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF, 0xE9, 0x8B, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00, 0x01, 0x00, 0x0F, 0x00, 0x00}},
80, 60, 4},
/*720*480 16 couleurs mode 0x83 */ /*320*200 256 couleurs RAPIDE mode 0x83 */
{ {{0x63},
0xE7, {0x03, 0x01, 0x0F, 0x00, 0x0E},
0x03, 0x01, 0x08, 0x00, 0x06, {0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x6B, 0x59, 0x5A, 0x82, 0x60, 0x8D, 0x0B, 0x3E, 0x00,
0x40, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x2D, 0x08, 0xE8, 0x05, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
90, 60, 4},
/*800*600 16 couleurs mode 0x84 */
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x70, 0x63, 0x64, 0x92, 0x65, 0x82, 0x70, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8C, 0x57, 0x32, 0x00, 0x58, 0x70, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
100, 75, 4},
/*320*200 256 couleurs RAPIDE mode 0x85 */
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x0E,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x40, 0x96, 0xB9, 0xA3, 0xFF, 0x9C, 0x0E, 0x8F, 0x28, 0x40, 0x96, 0xB9, 0xA3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00, 0x41, 0x00, 0x0F, 0x00, 0x00}},
40, 25, 8},
/*320*200 256 couleurs mode 0x86 */ /*320*400 256 couleurs mode 0x84 */
{ {{0x63},
0x63, {0x03, 0x01, 0x0F, 0x00, 0x06},
0x03, 0x01, 0x0F, 0x00, 0x06, {0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 25, 8},
/*320*400 256 couleurs mode 0x87 */
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF, 0x9C, 0x8E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00, 0x41, 0x00, 0x0F, 0x00, 0x00}},
40, 50, 8},
/*320*480 256 couleurs mode 0x88 */ /*320*480 256 couleurs mode 0x85 */
{ {{0xE3},
0xE3, {0x03, 0x01, 0x0F, 0x00, 0x06},
0x03, 0x01, 0x0F, 0x00, 0x06, {0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x28, 0x00, 0xE7, 0x06, 0xE3, 0xFF, 0xEA, 0xAC, 0xDF, 0x28, 0x00, 0xE7, 0x06, 0xE3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00, 0x41, 0x00, 0x0F, 0x00, 0x00}},
40, 60, 8},
/*360*480 256 couleurs mode 0x89 */ /*360*480 256 couleurs mode 0x86 */
{ {{0xE7},
0xE7, {0x03, 0x01, 0x0F, 0x00, 0x06},
0x03, 0x01, 0x0F, 0x00, 0x06, {0x6B, 0x59, 0x5A, 0x8E, 0x5E, 0x8A, 0x0D, 0x3E, 0x00,
0x6B, 0x59, 0x5A, 0x8E, 0x5E, 0x8A, 0x0D, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x2D, 0x00, 0xE7, 0x06, 0xE3, 0xFF, 0xEA, 0xAC, 0xDF, 0x2D, 0x00, 0xE7, 0x06, 0xE3, 0xFF},
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF, {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF},
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00, 0x41, 0x00, 0x0F, 0x00, 0x00}},
45, 60, 8},
/*400*600 256 couleurs mode 0x8A */
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x74, 0x63, 0x64, 0x97, 0x68, 0x95, 0x86, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8D, 0x57, 0x32, 0x00, 0x60, 0x80, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
50, 75, 8}
}; };

2
lib/interrupts.c
View File

@ -351,7 +351,7 @@ void exception14()
cli(); cli();
dumpcpu(); dumpcpu();
save_stack *dump = getESP(); save_stack *dump = getESP();
exception_stack *current = getESP()+36; exception_stack *current = getESP()+sizeof(save_stack)+100;
dump->eip=current->eip; dump->eip=current->eip;
dump->cs=current->cs; dump->cs=current->cs;
dump->oldesp=(current+1); dump->oldesp=(current+1);

2
lib/keyboard.c
View File

@ -223,7 +223,7 @@ unsigned convert(u32 keypressed)
} }
else if (key == SCAN_F10) { else if (key == SCAN_F10) {
nextvmode(); apply_nextvideomode();
} }
/* Scroll Lock, Num Lock, and Caps Lock mise a jour des leds */ /* Scroll Lock, Num Lock, and Caps Lock mise a jour des leds */

675
lib/vga.c
View File

@ -2,6 +2,7 @@
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */ /* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */ /* */
#include "vga.h" #include "vga.h"
#include "video.h"
#include "memory.h" #include "memory.h"
#include "asm.h" #include "asm.h"
#include "types.h" #include "types.h"
@ -9,97 +10,223 @@
#include "VGA/8x8fnt.c" #include "VGA/8x8fnt.c"
#include "VGA/8x16fnt.c" #include "VGA/8x16fnt.c"
/* Registres VGAs */ static videoinfos infos;
#define sequencer 0x3c4 static videofonction fonctions =
#define misc 0x3c2
#define ccrt 0x3D4
#define attribs 0x3c0
#define graphics 0x3ce
#define state 0x3da
/* Taille d'un plan de bit */
#define planesize 0x10000
static u16 resX, resY, color, splitY; /* resolution x,y en caractères et profondeur */
static u8 pages, activepage, showedpage; /* nombre de pages disponibles N° de la page active */
static u32 linesize, pagesize; /* Taille d'une ligne et d'une page */
static u8 vmode = 0xFF; /* mode en cours d'utilisation */
static u32 basemem; /* Adresse de la mémoire vidéo */
static bool scrolling, graphic, blink; /* Activation du défilement, Flag du mode graphique */
/*******************************************************************************/
/* Donne la resolution max horizontale */
u16 getxres(void)
{ {
return resX; VGA_detect_hardware;
VGA_setvideo_mode;
VGA_getvideo_drivername;
VGA_getvideo_capabilities;
VGA_getvideo_info;
VGA_mem_to_video;
VGA_video_to_mem;
VGA_video_to_video;
VGA_wait_vretrace;
VGA_wait_hretrace;
VGA_page_set;
VGA_page_show;
VGA_page_split;
VGA_cursor_enable;
VGA_cursor_disable;
VGA_cursor_set;
VGA_font_load;
VGA_font1_set;
VGA_font2_set;
VGA_blink_enable;
VGA_blink_disable;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Donne la profondeur en bit */ /* Detecte si le hardware est disponible, return NULL ou pointeur sur le type de pilote */
u8 *VGA_detect_hardware {
return "LEGACY",
};
u8 getdepth(void) /*******************************************************************************/
/* Renvoie l'adresse du segment video */
u32 getbase(void)
{ {
return color; u32 base;
/*outb(graphics, 6);
base = inb(graphics + 1);
base >>= 2;
base &= 3;*/
base = modes[infos.currentmode].graphics.Miscellaneous_Graphics_Register;
switch (base) {
case 0:
case 1:
base = 0xA0000;
break;
case 2:
base = 0xB0000;
break;
case 3:
base = 0xB8000;
break;
}
return base;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Donne la resolution max verticale */ /* Change le mode video courant */
/* ERR 0 aucune
/* ERR 1 mode non existant */
u16 getyres(void) u32 VGA_setvideo_mode(u8 mode)
{ {
return resY - splitY; u32 index;
while(vgacapabilities[index].modenumber!=0xFF) {
if (vgacapabilities[index].modenumber==mode) {
infos.currentmode=vgacapabilities[index].modenumber;
break;
index++;
}
if (infos.currentmode!=mode)
return 1;
infos.currentwidth=vgacapabilities[index].width;
infos.currentheight=vgacapabilities[index].height;
infos.currentdepth=vgacapabilities[index].depth;
infos.currentactivepage=0;
infos.currentshowedpage=0;
infos.currentcursorX=0;
infos.currentcursorY=0;
infos.currentfont1=0;
infos.currentfont2=0;
infos.isgraphic=vgacapabilities[index].graphic;
infos.isblinking=false;
infos.iscursorvisible=false;
if (infos.isgraphic) {
loadfont(font8x8, 8, 1);
loadfont(font8x16, 16, 0);
switch (infos.depth) {
case 1:
/* mode N&B */
infos.currentpitch = infos.width;
break;
case 2:
/* mode 4 couleurs */
infos.currentpitch = (infos.width << 1);
break;
case 4:
/* mode 16 couleurs */
infos.currentpitch = infos.width;
break;
case 8:
/* mode 256 couleurs */
if (modes[index].sequencer.Sequencer_Memory_Mode_Register == 0x0E) {
/* mode chainé (plus rapide mais limité en mémoire) */
infos.currentpitch = (infos.width << 3);
} else {
/* mode non chainé */
infos.currentpitch = (infos.width << 1);
}
break;
default:
break;
}
infos.pagesize = ((infos.height * infos.currentpitch) << 3);
}
else {
infos.currentpitch= infos.width * 2;
infos.pagesize=infos.height * infos.currentpitch;
}
infos.pagesnumber=(planesize / infos.currentpitch);
infos.baseaddress=(modes[index].ccrt.Cursor_Location_High_Register << 8) + modes[index].ccrt.Cursor_Location_Low_Register + getbase();
/* Initialise les registre "divers" */
outb(misc, modes[index].misc);
/* Initialise les registre d'etat */
outb(state, 0x00);
/* Initialise le séquenceur */
outreg(sequencer, modes[index].sequencer, 5);
/* Debloque le verouillage des registres controleur CRT */
outb(ccrt, 0x11);
outb(ccrt + 1, 0x0E);
/* Initialise le controleur CRT */
outreg(ccrt, ctrc, 25);
/* Initialise le controleur graphique */
outreg(graphics, modes[index].graphic, 9);
inb(state);
/* Initialise le controleur d'attributs */
outregsame(attribs, modes[index].attributs, 21);
inb(state);
outb(attribs, 0x20);
/* Initialise l'adresse des procedures de gestion graphique et les differentes
variables en fonction de la profondeur et du mode */
return 0;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Donne le nombre max de page ecran dispo */ /* Renvoie le nom du driver */
u8 *VGA_getvideo_drivername (void) {
return "VGA";
}
/*******************************************************************************/
/* Renvoie un pointeur sur la structure des capacités graphiques */
u8 *VGA_getvideo_capabilities (void) {
return vgacapabilities;
}
/*******************************************************************************/
/* Renvoie un pointeur sur l'état courant de la carte */
videoinfos *VGA_getvideo_info (void) {
return infos;
}
/*******************************************************************************/
/* Effecture un mouvement de la mémoire centrale vers la mémoire video (linéarisée) */
u32 VGA_mem_to_video (void *src,u32 dst, u32 size, bool increment_src) {
}
/*******************************************************************************/
/* Effecture un mouvement de la mémoire video (linéarisée) vers la mémoire centrale*/
u32 VGA_video_to_mem (u32 src,void *dst, u32 size) {
}
/*******************************************************************************/
/* Effecture un mouvement de la mémoire video (linéarisé) vers la mémoire vidéo (linéarisée) */
u32 VGA_video_to_video (u32 src,u32 dst, u32 size) {
u16 getnbpages(void)
{
return pages;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Fixe la page ecran de travail */ /* Fixe la page ecran de travail */
void setpage(u8 page) void VGA_page_set(u8 page)
{ {
if (page < pages) if (page < infos.pagesnumber)
activepage = page; infos.currentactivepage = page;
}
/*******************************************************************************/
/* Recupere la page ecran de travail */
u8 getpage(void)
{
return activepage;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Affiche la page ecran specifié */ /* Affiche la page ecran specifié */
void showpage(u8 page) void VGA_page_show(u8 page)
{ {
if (page < pages) { if (page < infos.pagesnumber) {
u16 addr; u16 addr;
addr = page * pagesize / 2; addr = page * infos.pagesize / 2;
outb(ccrt, 0x0C); outb(ccrt, 0x0C);
outb(ccrt + 1, (addr >> 8)); outb(ccrt + 1, (addr >> 8));
outb(ccrt, 0x0D); outb(ccrt, 0x0D);
outb(ccrt + 1, (addr & 0xFF)); outb(ccrt + 1, (addr & 0xFF));
showedpage = page; infos.currentshowedpage = page;
} }
} }
/*******************************************************************************/ /*******************************************************************************/
/* Sépare l'écran en 2 a partir de la ligne Y */ /* Sépare l'écran en 2 a partir de la ligne Y */
void split(u16 y) static splitY=0;
void VGA_page_split(u16 y)
{ {
if (y!=0) {
u16 addr; u16 addr;
if (graphic == 0) if (graphic == 0)
addr = (y << 3); addr = (y << 3);
@ -118,13 +245,9 @@ void split(u16 y)
outb(ccrt, 0x09); outb(ccrt, 0x09);
outb(ccrt + 1, (inb(ccrt + 1) & ~64) | ((addr >> 3) & 64)); outb(ccrt + 1, (inb(ccrt + 1) & ~64) | ((addr >> 3) & 64));
splitY = y; splitY = y;
} }
else
/*******************************************************************************/ {
/* Sépare l'écran en 2 a partir de la ligne Y */
void unsplit(void)
{
/* line compare pour ligne atteinte */ /* line compare pour ligne atteinte */
outb(ccrt, 0x18); outb(ccrt, 0x18);
outb(ccrt + 1, 0); outb(ccrt + 1, 0);
@ -138,12 +261,13 @@ void unsplit(void)
outb(ccrt, 0x09); outb(ccrt, 0x09);
outb(ccrt + 1, inb(ccrt + 1) & ~64); outb(ccrt + 1, inb(ccrt + 1) & ~64);
splitY = 0; splitY = 0;
}
} }
/*******************************************************************************/ /*******************************************************************************/
/* Attend la retrace verticale */ /* Attend la retrace verticale */
void waitvretrace(void) void VGA_wait_vretrace(void)
{ {
while ((inb(state) & 8) == 0) ; while ((inb(state) & 8) == 0) ;
} }
@ -151,7 +275,7 @@ void waitvretrace(void)
/*******************************************************************************/ /*******************************************************************************/
/* Attend la retrace horizontale */ /* Attend la retrace horizontale */
void waithretrace(void) void VGA_wait_hretrace(void)
{ {
while ((inb(state) & 1) == 0) ; while ((inb(state) & 1) == 0) ;
} }
@ -159,42 +283,27 @@ void waithretrace(void)
/*******************************************************************************/ /*******************************************************************************/
/* Active l'affichage du curseur de texte */ /* Active l'affichage du curseur de texte */
void enablecursor(void) void VGA_cursor_enable(void)
{ {
u8 curs; u8 curs;
/* active le curseur hardware */ /* active le curseur hardware */
outb(ccrt, 10); outb(ccrt, 10);
curs = inb(ccrt + 1) & ~32; curs = inb(ccrt + 1) & ~32;
outb(ccrt + 1, curs); outb(ccrt + 1, curs);
infos.isgraphic=true;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Desactive l'affichage du curseur de texte */ /* Desactive l'affichage du curseur de texte */
void disablecursor(void) void VGA_cursor_disable(void)
{ {
u8 curs; u8 curs;
/* Desactive le curseur hardware */ /* Desactive le curseur hardware */
outb(ccrt, 10); outb(ccrt, 10);
curs = inb(ccrt + 1) | 32; curs = inb(ccrt + 1) | 32;
outb(ccrt + 1, curs); outb(ccrt + 1, curs);
} infos.isgraphic=false;
/*******************************************************************************/
/* Active le scrolling en cas de débordement d'écran */
void enablescroll(void)
{
scrolling = true;
}
/*******************************************************************************/
/* Desactive le scrolling en cas de débordement d'écran */
void disablescroll(void)
{
scrolling = false;
} }
/*******************************************************************************/ /*******************************************************************************/
@ -213,387 +322,31 @@ void useplane(u8 plan)
outb(sequencer + 1, mask); outb(sequencer + 1, mask);
} }
/*******************************************************************************/
/* Renvoie l'adresse du segment video */
u32 getbase(void)
{
u32 base;
outb(graphics, 6);
base = inb(graphics + 1);
base >>= 2;
base &= 3;
switch (base) {
case 0:
case 1:
base = 0xA0000;
break;
case 2:
base = 0xB0000;
break;
case 3:
base = 0xB8000;
break;
}
return base;
}
/*******************************************************************************/
/* efface l'écran */
void (*fill) (u8 attrib);
void fill_text(u8 attrib)
{
memset((u8 *) (basemem + activepage * pagesize), ' ', pagesize / 2, 2);
memset((u8 *) (basemem + activepage * pagesize + 1), attrib,
pagesize / 2, 2);
}
void fill_chain(u8 attrib)
{
memset((u8 *) (basemem + activepage * pagesize), attrib & 0x0F,
pagesize, 1);
}
void fill_unchain(u8 attrib)
{
int i;
for (i = 0; i < 4; i++) {
useplane(i);
memset((u8 *) (basemem + activepage * pagesize), attrib & 0x0F,
pagesize, 1);
}
}
/*******************************************************************************/ /*******************************************************************************/
/* fixe la position du curseur texte */ /* fixe la position du curseur texte */
void gotoscr(u16 x, u16 y) void VGA_cursor_set(u16 x, u16 y)
{ {
u16 pos; u16 pos;
if (splitY == 0) if (splitY == 0)
pos = (showedpage * pagesize / 2 + x + y * resX); pos = (infos.currentshowedpage * infos.pagesize / 2 + x + y * infos.width);
else else
pos = (x + y * resX); pos = (x + y * infos.width);
outb(ccrt, 0x0F); outb(ccrt, 0x0F);
outb(ccrt + 1, (u8) (pos & 0x00FF)); outb(ccrt + 1, (u8) (pos & 0x00FF));
outb(ccrt, 0x0E); outb(ccrt, 0x0E);
outb(ccrt + 1, (u8) ((pos & 0xFF00) >> 8)); outb(ccrt + 1, (u8) ((pos & 0xFF00) >> 8));
} info.currentcursorX=x;
info.currentcursorY=y;
/*******************************************************************************/
/* Fait defiler l'ecran de n lignes vers le haut */
void (*scroll) (u8 lines, u8 attrib);
void scroll_unchain(u8 lines, u8 attrib)
{
if (scrolling) {
u8 i;
for (i = 0; i < 4; i++) {
useplane(i);
memcpy((u8 *) (basemem + activepage * pagesize +
linesize * 8 * lines), (u8 *) basemem,
pagesize - linesize * 8 * lines, 1);
memset((u8 *) (basemem + activepage * pagesize +
pagesize - linesize * 8 * lines),
attrib & 0x0F, linesize * 8 * lines, 1);
}
}
}
void scroll_chain(u8 lines, u8 attrib)
{
if (scrolling) {
memcpy((u8 *) basemem + activepage * pagesize + linesize * 8 * lines,
(u8 *) basemem + activepage * pagesize, pagesize - linesize * 8 * lines, 1);
memset((u8 *) (basemem + activepage * pagesize + pagesize - linesize * 8 * lines), attrib & 0x0F, linesize * 8 * lines, 1);
}
}
void scroll_text(u8 lines, u8 attrib)
{
if (scrolling) {
memcpy((u8 *) basemem + activepage * pagesize +
linesize * lines, (u8 *) basemem + activepage * pagesize,
pagesize - linesize * lines, 1);
memset((u8 *) (basemem + activepage * pagesize + pagesize -
linesize * lines - 2), ' ',
(linesize * lines) / 2, 2);
memset((u8 *) (basemem + activepage * pagesize + pagesize -
linesize * lines - 1), attrib,
(linesize * lines) / 2, 2);
}
}
/*******************************************************************************/
/* Affiche le caractère a l'écran */
void (*showchar) (u16 coordx, u16 coordy, u8 thechar, u8 attrib);
void showchar_graphic(u16 coordx, u16 coordy, u8 thechar, u8 attrib)
{
u8 x, y, pattern, set;
for (y = 0; y < 8; y++) {
pattern = font8x8[thechar * 8 + y];
for (x = 0; x < 8; x++) {
set = ((pattern >> (7 - x)) & 0x1); /* mettre un ROL importé depuis asm */
if (set == 0)
writepxl(coordx * 8 + x, coordy * 8 + y,
((attrib & 0xF0) >> 8) * set);
else
writepxl(coordx * 8 + x, coordy * 8 + y,
(attrib & 0x0F) * set);
}
}
}
void showchar_text(u16 coordx, u16 coordy, u8 thechar, u8 attrib)
{
u8 *screen;
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX);
*screen = thechar;
*(++screen) = attrib;
}
/*******************************************************************************/
/* Recupere le caractère a l'écran */
u8(*getchar) (u16 coordx, u16 coordy);
u8 getchar_text(u16 coordx, u16 coordy)
{
u8 *screen;
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX);
return *screen;
}
/*******************************************************************************/
/* Recupere les attributs a l'écran */
u8(*getattrib) (u16 coordx, u16 coordy);
u8 getattrib_text(u16 coordx, u16 coordy)
{
u8 *screen;
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX) + 1;
return *screen;
}
/*******************************************************************************/
/* Ecrit un pixel a l'écran */
void (*writepxl) (u16 x, u16 y, u32 c);
void writepxl_1bit(u16 x, u16 y, u32 c)
{
u8 *off;
u8 mask;
c = (c & 1) * 0xFF;
off = (u8 *) (basemem + activepage * pagesize + linesize * y + x / 8);
x = (x & 7) * 1;
mask = 0x80 >> x;
*off = ((*off) & ~mask) | (c & mask);
}
void writepxl_2bits(u16 x, u16 y, u32 c)
{
u8 *off;
u8 mask;
c = (c & 3) * 0x55;
off = (u8 *) (basemem + activepage * pagesize + linesize * y + x / 4);
x = (x & 3) * 2;
mask = 0xC0 >> x;
*off = ((*off) & ~mask) | (c & mask);
}
void writepxl_4bits(u16 x, u16 y, u32 c)
{
u8 *off;
u8 mask, p, pmask;
off = (u8 *) (basemem + activepage * pagesize + linesize * y + x / 8);
x = (x & 7) * 1;
mask = 0x80 >> x;
pmask = 1;
for (p = 0; p < 4; p++) {
useplane(p);
if (pmask & c)
*off = ((*off) | mask);
else
*off = ((*off) & ~mask);
pmask <<= 1;
}
}
void writepxl_8bits(u16 x, u16 y, u32 c)
{
u8 *off;
off = (u8 *) (basemem + activepage * pagesize + linesize * y + x);
*off = c;
}
void writepxl_8bitsunchain(u16 x, u16 y, u32 c)
{
u8 *off;
off = (u8 *) (basemem + activepage * pagesize + linesize * y + x / 4);
useplane(x & 3);
*off = c;
}
/*******************************************************************************/
/* Met le mode video suivant */
u8 nextvmode(void)
{
u8 mode = getvmode();
mode++;
if (mode >= 0x80) {
if (mode > maxgraphmode)
mode = 0x0;
} else {
if (mode > maxtextmode)
mode = 0x80;
}
setvmode(mode);
return mode;
}
/*******************************************************************************/
/* Change le mode video courant */
u32 setvmode(u8 mode)
{
u8 *def, gmode;
/* Récupere la definition des registres VGA en fonction du mode
graphique : >0x80
text : 0x00 - 0x7F
*/
if (mode >= 0x80) {
gmode = mode - 0x80;
if (gmode > maxgraphmode)
return 1; /* mode inexistant */
def = graphmodes[gmode];
graphic = true;
} else {
if (mode > maxtextmode)
return 1; /* mode inexistant */
def = textmodes[mode];
graphic = false;
loadfont(font8x8, 8, 1);
loadfont(font8x16, 16, 0);
}
/* Initialise les registre "divers" */
outb(misc, def[0]);
/* Initialise les registre d'etat */
outb(state, 0x00);
/* Initialise le séquenceur */
outreg(sequencer, &def[1], 5);
/* Debloque le verouillage des registres controleur CRT */
outb(ccrt, 0x11);
outb(ccrt + 1, 0x0E);
/* Initialise le controleur CRT */
outreg(ccrt, &def[6], 25);
/* Initialise le controleur graphique */
outreg(graphics, &def[31], 9);
inb(state);
/* Initialise le controleur d'attributs */
outregsame(attribs, &def[40], 21);
inb(state);
outb(attribs, 0x20);
/* Récupere depuis la table de définition des mode la résolution et la
profondeur (en bits) */
resX = def[61];
resY = def[62];
color = def[63];
/* Initialise l'adresse des procedures de gestion graphique et les differentes
variables en fonction de la profondeur et du mode */
if (!graphic) {
/* mode texte */
linesize = resX * 2;
writepxl = NULL; /* pas d'affichage de pixels */
showchar = showchar_text;
scroll = scroll_text;
fill = fill_text;
pagesize = resY * linesize;
getchar = getchar_text;
getattrib = getattrib_text;
} else {
switch (color) {
case 1:
/* mode N&B */
linesize = resX;
writepxl = writepxl_1bit;
fill = fill_chain;
scroll = scroll_chain;
break;
case 2:
/* mode 4 couleurs */
linesize = (resX << 1);
writepxl = writepxl_2bits;
fill = fill_chain;
scroll = scroll_chain;
break;
case 4:
/* mode 16 couleurs */
linesize = resX;
writepxl = writepxl_4bits;
fill = fill_unchain;
scroll = scroll_unchain;
break;
case 8:
/* mode 256 couleurs */
if (def[5] == 0x0E) {
/* mode chainé (plus rapide mais limité en mémoire) */
linesize = (resX << 3);
writepxl = writepxl_8bits;
scroll = scroll_chain;
fill = fill_chain;
} else {
/* mode non chainé */
linesize = (resX << 1);
writepxl = writepxl_8bitsunchain;
scroll = scroll_unchain;
fill = fill_unchain;
}
break;
default:
break;
}
showchar = showchar_graphic;
pagesize = ((resY * linesize) << 3);
}
/* calcul des variables d'état video */
activepage = 0;
showedpage = 0;
splitY = 0;
vmode = mode;
scrolling = 1;
pages = (planesize / pagesize);
basemem = (def[20] << 8) + def[21] + getbase();
return 0;
}
/*******************************************************************************/
/* Récupère le mode vidéo en cours */
u8 getvmode(void)
{
return vmode;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Charge une nouvelle police de caractère */ /* Charge une nouvelle police de caractère */
/* ERR 1 mode graphique activé*/
u32 loadfont(u8 * def, u8 size, u8 font) u32 VGA_font_load(u8 * def, u8 size, u8 font)
{ {
if (graphics == 1) if (infos.isgraphic)
return 1; return 1;
u8 oldregs[5] = { 0, 0, 0, 0, 0 }; u8 oldregs[5] = { 0, 0, 0, 0, 0 };
u8 *base; u8 *base;
@ -640,70 +393,50 @@ u32 loadfont(u8 * def, u8 size, u8 font)
return 0; return 0;
} }
/*******************************************************************************/
/* Récupere le N° de la police de caractère en cours d'utilisation */
u8 getfont(void)
{
u8 num, tmp;
outb(sequencer, 3);
tmp = inb(sequencer + 1);
num = (tmp & 0x03) | ((tmp & 0x10) >> 2);
return num;
}
/*******************************************************************************/
/* Récupere le N° de la police de caractère en cours d'utilisation */
u8 getfont2(void)
{
u8 num, tmp;
outb(sequencer, 3);
tmp = inb(sequencer + 1);
num = ((tmp & 0x0C) >> 2) | ((tmp & 0x20) >> 3);
return num;
}
/*******************************************************************************/ /*******************************************************************************/
/* Fixe le N° de la police de caractère a utiliser */ /* Fixe le N° de la police de caractère a utiliser */
void setfont(u8 num) void VGA_font1_set(u8 num)
{ {
num &= 0x07; num &= 0x07;
outb(sequencer, 3); outb(sequencer, 3);
outb(sequencer + 1, outb(sequencer + 1,
(inb(sequencer + 1) & 0xEC) | ((num & 0x03) + (inb(sequencer + 1) & 0xEC) | ((num & 0x03) +
((num & 0x04) << 2))); ((num & 0x04) << 2)));
info.currentfont1=num;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Fixe le N° de la police de caractère a utiliser */ /* Fixe le N° de la police de caractère a utiliser */
void setfont2(u8 num) void VGA_font2_set(u8 num)
{ {
num &= 0x07; num &= 0x07;
outb(sequencer, 3); outb(sequencer, 3);
outb(sequencer + 1, outb(sequencer + 1,
(inb(sequencer + 1) & 0xD3) | (((num & 0x03) << 2) + (inb(sequencer + 1) & 0xD3) | (((num & 0x03) << 2) +
((num & 0x04) << 3))); ((num & 0x04) << 3)));
info.currentfont2=num;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Autorise le clignotement */ /* Autorise le clignotement */
void enableblink(void) void VGA_blink_enable(void)
{ {
outb(ccrt, 0x10); outb(ccrt, 0x10);
outb(ccrt + 1, (inb(sequencer + 1) | 0x04)); outb(ccrt + 1, (inb(sequencer + 1) | 0x04));
info.isblinking=true;
} }
/*******************************************************************************/ /*******************************************************************************/
/* Annule le clignotement */ /* Annule le clignotement */
void disableblink(void) void VGA_blink_disable(void)
{ {
outb(ccrt, 0x10); outb(ccrt, 0x10);
outb(ccrt + 1, (inb(sequencer + 1) & ~0x04)); outb(ccrt + 1, (inb(sequencer + 1) & ~0x04));
info.isblinking=false;
} }
/*******************************************************************************/ /*******************************************************************************/

152
lib/video.c
View File

@ -5,6 +5,8 @@
#include "video.h" #include "video.h"
#include "stdarg.h" #include "stdarg.h"
drivers registred[maxdrivers];
console vc[8] = { console vc[8] = {
{0x07, 0, 0, 0, 0, 0, 0, 0} {0x07, 0, 0, 0, 0, 0, 0, 0}
, ,
@ -815,3 +817,153 @@ u8 *sitoa(u64 num, u8 * str, u64 dim)
return pointer; return pointer;
} }
/*******************************************************************************/ /*******************************************************************************/
/* initialise le tableau des pilotes vidéo */
void initdriver() {
for(u32 i=0;i<maxdrivers;i++)
registred[i].nom=NULL;
}
/*******************************************************************************/
/* Enregistre un pilote dans le tableau des pilotes vidéo */
void registerdriver(videofonction *pointer);
{
u32 i;
for(i=0;i<maxdrivers;i++)
if (registred[i].pointer==pointer)
return;
i=0;
while (registred[i].nom!=NULL && i<maxdrivers)
i++;
registred[i].pointer=pointer;
}
/*******************************************************************************/
/* Choisi le meilleur driver en terme d'affichage */
void apply_bestdriver(void) {
u32 i=0,j=0;
u8 bestdepth=0x0;
u8 bestresol=0x0;
u8 bestmode=0x0;
u8* bestdriver=NULL;
while (registred[i].nom!=NULL && i<maxdrivers) {
capabilities cap=registred[i].pointer.getvideo_capabilities();
while(cap[j].modenumber!=0xFF) {
if (cap[j].depth>bestdepth && (cap[j].width*cap[j].height)>=bestresol)
{
bestdepth=cap[j].depth;
bestresol=cap[j].width*cap[j].height;
bestmode=cap[j].modenumber;
bestdriver=registred[i].pointer.getvideo_drivername();
}
j++;
}
i++;
}
if (bestdriver!=NULL) apply_driver(bestdriver);
setvideo_mode(bestmode);
}
/*******************************************************************************/
/* Choisi le meilleur driver spécifié par le nom */
void apply_driver(u8* name);
{
u32 i=0;
while (registred[i].nom!=NULL && i<maxdrivers) {
if (strcmp(name,registred[i].nom)==0) {
detect_hardware=registred[i].pointer.detect_hardware;
setvideo_mode=registred[i].pointer.setvideo_mode;
getvideo_drivername=registred[i].pointer.getvideo_drivername;
getvideo_capabilities=registred[i].pointer.getvideo_capabilities;
getvideo_info=registred[i].pointer.getvideo_info;
mem_to_video=registred[i].pointer.mem_to_video;
video_to_mem=registred[i].pointer.video_to_mem;
video_to_video=registred[i].pointer.video_to_video;
wait_vretrace=registred[i].pointer.wait_vretrace;
wait_hretrace=registred[i].pointer.wait_hretrace;
page_set=registred[i].pointer.page_set;
page_show=registred[i].pointer.page_show;
page_split=registred[i].pointer.page_split;
cursor_enable=registred[i].pointer.cursor_enable;
cursor_disable=registred[i].pointer.cursor_disable;
cursor_set=registred[i].pointer.cursor_set;
font_load=registred[i].pointer.font_load;
font1_set=registred[i].pointer.font1_set;
font2_set=registred[i].pointer.font2_set;
blink_enable=registred[i].pointer.blink_enable;
blink_disable=registred[i].pointer.blink_disable;
}
i++;
}
setvideo_mode(0x0);
}
/*******************************************************************************/
/* Applique le driver suivant */
void apply_nextdriver(void) {
u32 i=0;
while (registred[i].nom!=NULL && i<maxdrivers) {
if (strcmp(getvideo_drivername(),registred[i].nom)==0) {
i++;
if (registred[i].nom!=NULL) i=0;
apply_driver(registred[i].nom);
return;
}
i++;
}
/*******************************************************************************/
/* Applique le mode suivant (le driver suivant si dernier mode) */
void apply_nextvideomode(void) {
capabilities cap=getvideo_capabilities();
videoinfos info=getvideo_info();
u32 mode=info.modenumber;
u8 index=0;
while(cap[index].modenumber!=0xFF) {
if (cap[index].modenumber==mode) {
index++;
if (cap[index].modenumber==0xFF)
apply_nextdriver();
else
setvideo_mode(cap[index].modenumber);
return;
}
index++;
}
}
/*******************************/
void fill(u8 attrib)
{
}
void scroll (u8 lines, u8 attrib)
{
}
void scroll_enable(void)
{
}
void scroll_disable(void)
{
}
void showchar (u16 coordx, u16 coordy, u8 thechar, u8 attrib)
{
}
u8 getchar (u16 coordx, u16 coordy)
{
}
u8 getattrib (u16 coordx, u16 coordy)
{
}

2
system/multiboot.asm
View File

@ -28,7 +28,7 @@ align MULTIBOOT_TAG_ALIGN
dd multiboot_header_end - multiboot_header dd multiboot_header_end - multiboot_header
dd -(MULTIBOOT2_HEADER_MAGIC + MULTIBOOT_ARCHITECTURE_I386 + (multiboot_header_end - multiboot_header)) dd -(MULTIBOOT2_HEADER_MAGIC + MULTIBOOT_ARCHITECTURE_I386 + (multiboot_header_end - multiboot_header))
align MULTIBOOT_TAG_ALIGN align MULTIBOOT_TAG_ALIGN
%if arch = "bits32" %if arch = "bitsd32"
%warning "Avec la console VGA/EGA." %warning "Avec la console VGA/EGA."
console_tag_start: console_tag_start:
dw MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS ; type dw MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS ; type

5
system/system.c
View File

@ -46,7 +46,10 @@ void error()
int main(u32 magic, u32 addr) int main(u32 magic, u32 addr)
{ {
cli(); cli();
setvmode(0x02); initdriver();
registerdriver(&fonctions);
apply_driver("VGA");
setvideo_mode(0x02);
/* Efface l'ecran */ /* Efface l'ecran */
print("\033[2J\000"); print("\033[2J\000");