Changeset 1f5c9c96 in mainline for kernel/genarch/src/fb/bfb.c

Timestamp:

2011-12-02T17:29:43Z (13 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b8b1e631, c3887ad

Parents:

c48f6ab

Message:

implement multiboot v2 specification and use it in GRUB for UEFI

• improve multiboot v1 code, move defines to a common location
• rename VESA framebuffer stuff to generic "boot framebuffer"
• small collateral changes

File:

• kernel/genarch/src/fb/bfb.c (moved) (moved from kernel/arch/ia32/src/drivers/vesa.c ) (3 diffs)

kernel/genarch/src/fb/bfb.c

@@ -27 +27 @@
  */
 
-/** @addtogroup ia32
+/** @addtogroup genarch
  * @{
  */
 /**
  * @file
- * @brief VESA frame buffer driver.
+ * @brief Boot framebuffer driver.
  */
 
-#ifdef CONFIG_FB
+#include <typedefs.h>
+#include <genarch/fb/fb.h>
+#include <genarch/fb/bfb.h>
+#include <console/console.h>
 
-#include <genarch/fb/fb.h>
-#include <arch/drivers/vesa.h>
-#include <console/chardev.h>
-#include <console/console.h>
-#include <putchar.h>
-#include <mm/page.h>
-#include <mm/frame.h>
-#include <mm/as.h>
-#include <arch/mm/page.h>
-#include <synch/spinlock.h>
-#include <arch/asm.h>
-#include <typedefs.h>
-#include <memstr.h>
-#include <bitops.h>
+uintptr_t bfb_addr = (uintptr_t) -1;
+uint32_t bfb_width = 0;
+uint32_t bfb_height = 0;
+uint16_t bfb_bpp = 0;
+uint32_t bfb_scanline = 0;
 
-uint32_t vesa_ph_addr;
-uint16_t vesa_width;
-uint16_t vesa_height;
-uint16_t vesa_bpp;
-uint16_t vesa_scanline;
+uint8_t bfb_red_pos = 0;
+uint8_t bfb_red_size = 0;
 
-uint8_t vesa_red_mask;
-uint8_t vesa_red_pos;
+uint8_t bfb_green_pos = 0;
+uint8_t bfb_green_size = 0;
 
-uint8_t vesa_green_mask;
-uint8_t vesa_green_pos;
+uint8_t bfb_blue_pos = 0;
+uint8_t bfb_blue_size = 0;
 
-uint8_t vesa_blue_mask;
-uint8_t vesa_blue_pos;
-
-bool vesa_init(void)
+bool bfb_init(void)
 {
-        if ((vesa_width == 0xffffU) || (vesa_height == 0xffffU))
+        if ((bfb_width == 0) || (bfb_height == 0))
                 return false;
         
-        visual_t visual;
+        fb_properties_t bfb_props = {
+                .addr = bfb_addr,
+                .offset = 0,
+                .x = bfb_width,
+                .y = bfb_height,
+                .scan = bfb_scanline
+        };
         
-        switch (vesa_bpp) {
+        switch (bfb_bpp) {
         case 8:
-                visual = VISUAL_INDIRECT_8;
+                bfb_props.visual = VISUAL_INDIRECT_8;
                 break;
         case 16:
-                if ((vesa_red_mask == 5) && (vesa_red_pos == 10)
-                    && (vesa_green_mask == 5) && (vesa_green_pos == 5)
-                    && (vesa_blue_mask == 5) && (vesa_blue_pos == 0))
-                        visual = VISUAL_RGB_5_5_5_LE;
+                if ((bfb_red_pos == 10) && (bfb_red_size == 5) &&
+                    (bfb_green_pos == 5) && (bfb_green_size == 5) &&
+                    (bfb_blue_pos == 0) && (bfb_blue_size == 5))
+                        bfb_props.visual = VISUAL_RGB_5_5_5_LE;
                 else
-                        visual = VISUAL_RGB_5_6_5_LE;
+                        bfb_props.visual = VISUAL_RGB_5_6_5_LE;
                 break;
         case 24:
-                visual = VISUAL_BGR_8_8_8;
+                bfb_props.visual = VISUAL_BGR_8_8_8;
                 break;
         case 32:
-                visual = VISUAL_BGR_8_8_8_0;
+                bfb_props.visual = VISUAL_BGR_8_8_8_0;
                 break;
         default:
@@ -97 +91 @@
         }
         
-        fb_properties_t vesa_props = {
-                .addr = vesa_ph_addr,
-                .offset = 0,
-                .x = vesa_width,
-                .y = vesa_height,
-                .scan = vesa_scanline,
-                .visual = visual,
-        };
-        
-        outdev_t *fbdev = fb_init(&vesa_props);
+        outdev_t *fbdev = fb_init(&bfb_props);
         if (!fbdev)
                 return false;
@@ -114 +99 @@
 }
 
-#endif
-
 /** @}
  */