fix: ajout detection PCI & correction video.c : fonction line & hline

include/asm.h

@@ -166,14 +166,14 @@
 	u16 _v;	\
  	asm volatile ("inw %%dx,%%ax" : "=a" (_v) : "d"(port));	\
 	_v;	\
-}
+})
 
 
 #define ind(port) ({	\
 	u32 _v;	\
  	asm volatile ("inl %%dx,%%eax" : "=a" (_v) : "d"(port));	\
 	_v;	\
-}
+})
 
 /******************************************************************************/
 

include/pci.h

@@ -0,0 +1,14 @@
+/*******************************************************************************/
+/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas             */
+/*                                                                             */
+
+typedef struct pcidev {
+  union {
+    struct {
+        u16 vendor;
+        u16 device;
+    };
+   u32 dword;
+  };
+} pcidev  __attribute__ ((packed));	
+

include/shell.h

@@ -27,3 +27,4 @@ int bpclr(u8* commandline);
 int sfont(u8* commandline);
 int help();
 int logo();
+int detectpci();

include/video.h

@@ -11,8 +11,8 @@
 #define MAXFONTS   10
 
 typedef struct vertex2d{
-	u16 x;	
+	s16 x;	
-	u16 y;
+	s16 y;
 } vertex2d __attribute__ ((packed));
 
 typedef struct rgbcolor {
@@ -107,9 +107,9 @@ void showchar (u16 coordx, u16 coordy, u8 thechar, u8 attrib);
 u8 getchar (u16 coordx, u16 coordy);
 u8 getattrib (u16 coordx, u16 coordy);
 void v_writepxl (vertex2d *A, u32 color);
-void writepxl (u16 x, u16 y, u32 color);
+void writepxl (s16 x, s16 y, u32 color);
-void line(u32 x1, u32 y1, u32 x2, u32 y2, u32 color);
+void line(s16 x1, s16 y1, s16 x2, s16 y2, u32 color);
-void hline(u16 x1, u16 x2, u16 y, u32 color);
+void hline(s16 x1, s16 x2, s16 y, u32 color);
 void changemode(u8 mode);
 u32 egatorgb(u8 ega);
 u8 egatovga(u8 ega);

lib/3d.c

@@ -74,8 +74,8 @@ void cube(model3d *model, vector4 *origin, u16 size)
     model->facelist[4].V2=1;
     model->facelist[4].V3=5;
     model->facelist[5].V1=0;
-    model->facelist[5].V2=4;
+    model->facelist[5].V2=1;
-    model->facelist[5].V3=5;
+    model->facelist[5].V3=4;
     model->facelist[6].V1=0;
     model->facelist[6].V2=0;
     model->facelist[6].V3=0;

lib/pci.c

@@ -0,0 +1,53 @@
+/*******************************************************************************/
+/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas             */
+/*                                                                             */
+
+#include "asm.h"
+#include "types.h"
+#include "pci.h"
+
+
+#define MAX_BUS_SCAN        256
+#define MAX_DEVICE_SCAN     32
+#define MAX_FUNCTION_SCAN   8
+
+/*******************************************************************************/
+/* Detecte s */
+
+pcidev getPCIinfo(const u8 bus, const u8 dev, const u8 function)
+{
+    pcidev result;
+    const u32 registry = 0; 
+    u32 addr = (0x80000000|(bus << 16)|(dev << 11)|(function << 8)|(registry & 0xFC));
+    outd(0xCF8, addr);
+    result.dword = ind(0xCFC);
+    if (result.dword == 0xFFFFFFFF)
+        result.dword = 0x0;
+    return result;
+}
+
+/*******************************************************************************/
+/* Scan le bus PCI et affiche les périphériques */
+
+void scanPCI(void)
+{
+    u32 i, bus, device, function;
+    pcidev result;    
+    i = 0;
+    for (bus=0; bus<MAX_BUS_SCAN; ++bus)
+      for (device=0; device<MAX_DEVICE_SCAN; ++device)
+        for (function=0; function<MAX_FUNCTION_SCAN; ++function)
+        {
+          result = getPCIinfo(bus, device, function);
+          if (result.dword)
+            printf("%d) Bus: 0x%x, Device: 0x%x. Function: 0x%x (0x%hx:0x%hx)\r\n",
+                   ++i, bus, device, function, result.vendor, result.device);
+        }
+    return;
+}
+
+
+
+
+/*******************************************************************************/
+

lib/shell.c

@@ -38,6 +38,7 @@ static command commands[] = {
 	{"logo"      , "", &logo},
 	{"font"      , "", &sfont},
 	{"test3d"      , "", &test3d},
+	{"detectpci"      , "", &detectpci},
 };
 
 /*******************************************************************************/
@@ -77,6 +78,12 @@ int test(void)
     return;
 }
 
+/*******************************************************************************/
+/* Affiche les périphériques PCI */
+int detectpci()
+{
+    scanPCI();
+}
 
 /*******************************************************************************/
 /* Change la police courante */
@@ -429,6 +436,8 @@ int test3d()
         print("Mode graphique necessaire afin de lancer ce programme\r\n");
         return 1;
     }
+    line(-100,-50,1800,200,egatorgb(4));
+waitascii();
     model3d model;
     float factor=100.0f;
     type3D type=TYPE3D_POINTS;

lib/video.c

@@ -660,10 +660,28 @@ void showchar(u16 coordx, u16 coordy, u8 thechar, u8 attrib)
 /******************************************************************************/
 /* Affiche une ligne horizontale entre les points spécifiés */
 
-void hline(u16 x1, u16 x2, u16 y, u32 color)
+void hline(s16 x1, s16 x2, s16 y, u32 color)
 {
     if (vinfo->isgraphic)
     {
+        if (x1<0) 
+        {
+            if (x2<0)
+                return;
+            x1=0;
+        }
+        else if (x1>vinfo->currentwidth) 
+            x1=vinfo->currentwidth-1;
+        if (x2<0) 
+            x2=0;
+        else if (x2>vinfo->currentwidth) 
+        {
+            if (x1>vinfo->currentwidth)
+                return;
+            x2=vinfo->currentwidth-1;
+        }
+        if (x1>vinfo->currentwidth) 
+            x1=vinfo->currentwidth-1;
 	    if (x2 > x1) 
             mem_to_video(color,(vinfo->currentdepth>>3)*x1+vinfo->currentpitch*y,x2-x1,false);
         else
@@ -680,13 +698,16 @@ void v_writepxl(vertex2d *A, u32 color)
     writepxl(A->x, A->y, color);
 }
 
-void writepxl(u16 x, u16 y, u32 color)
+void writepxl(s16 x, s16 y, u32 color)
 {
     if (vinfo->isgraphic)
+    {
+        if (x>0 && y>0 && x<vinfo->currentwidth && y<vinfo->currentheight)
         {
             u32 addr=(vinfo->currentdepth>>3)*x+vinfo->currentpitch*y;
             mem_to_video(color,addr,1,false);
         }
+    }
 }
 
 /******************************************************************************/
@@ -697,13 +718,79 @@ void v_line(vertex2d *A, vertex2d *B, u32 color)
 	line(A->x, A->y, B->x, B->y, color);
 }
 
-void line(u32 x1, u32 y1, u32 x2, u32 y2, u32 color)
+void line(s16 x1, s16 y1, s16 x2, s16 y2, u32 color)
 {
-	s32 dx, dy, sdx, sdy;
+	s16 dx, dy, sdx, sdy;
-	u32 i, dxabs, dyabs, x, y, px, py;
+    float a, b;
+	s16 i, dxabs, dyabs, x, y, px, py;
 
 	dx = x2 - x1;		/*  distance horizontale de la line */
-	dy = y2 - y1;		/* distance verticale de la line * */
+	dy = y2 - y1;		/* distance verticale de la line */
+
+    if (x1<0)
+    {
+        a = 1.0f * dy / dx;
+        b = y1 - a*x1;
+        x1 = 0;
+        y1 = b;
+        if (x2<0)
+            return;
+    }
+    else if (x2<0)
+    {
+        a = 1.0f * dy / dx;
+        b = y2 - a*x2;
+        x2 = 0;
+        y2 = b;
+    }
+    if (y1<0)
+    {
+        a = 1.0f * dy / dx;
+        b = y1 - a*x1;
+        y1 = 0;
+        x1 = - b / a;
+        if (y2<0)
+            return;
+    }
+    else if (y2<0)
+    {
+        a = 1.0f * dy / dx;
+        b = y2 - a*x2;
+        y2 = 0;
+        x2 = - b / a;
+    }
+    if (x1>vinfo->currentwidth)
+    {
+        a = 1.0f * dy / dx;
+        b = y1 - a*x1;
+        x1 = vinfo->currentwidth-1;
+        y1 = a*x1+b;
+        if (x2>vinfo->currentwidth)
+            return;
+    }
+    else if (x2>vinfo->currentwidth)
+    {
+        a = 1.0f * dy / dx;
+        b = y2 - a*x2;
+        x2 = vinfo->currentwidth-1;
+        y2 = a*x2+b;
+    }
+    if (y1>vinfo->currentheight)
+    {
+        a = 1.0f * dy / dx;
+        b = y1 - a*x1;
+        y1 = vinfo->currentheight-1;
+        x1 = (y1 - b) / a;
+        if (y2>vinfo->currentheight)
+            return;
+    }
+    else if (y2>vinfo->currentheight)
+    {
+        a = 1.0f * dy / dx;
+        b = y2 - a*x2;
+        y2 = vinfo->currentheight-1;
+        x2 = (y2 - b) / a;
+    }
 	dxabs = abs(dx);
 	dyabs = abs(dy);
 	sdx = sgn(dx);