Changeset bdfd3cdd in mainline

Timestamp:

2010-06-02T21:59:48Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

c992538a

Parents:

f8d07859

Message:

Support for QEMU,VGA frame buffer on sparc64.
(Contributed by Igor Kovalenko.)

Location:

kernel/arch/sparc64

Files:

• include/drivers/scr.h (modified) (1 diff)
• src/drivers/scr.c (modified) (2 diffs)

kernel/arch/sparc64/include/drivers/scr.h

@@ -44 +44 @@
         SCR_FFB,
         SCR_CGSIX,
-        SCR_XVR
+        SCR_XVR,
+        SCR_QEMU_VGA
 } scr_type_t;
 

kernel/arch/sparc64/src/drivers/scr.c

@@ -77 +77 @@
         else if (str_cmp(name, "cgsix") == 0)
                 scr_type = SCR_CGSIX;
+        else if (str_cmp(name, "QEMU,VGA") == 0)
+                scr_type = SCR_QEMU_VGA;
         
         if (scr_type == SCR_UNKNOWN) {
@@ -228 +230 @@
         
                 break;
+
+        case SCR_QEMU_VGA:
+                if (prop->size / sizeof(ofw_pci_reg_t) < 2) {
+                        printf("Too few screen registers.\n");
+                        return;
+                }
+
+                pci_reg = &((ofw_pci_reg_t *) prop->value)[1];
+
+                if (!ofw_pci_reg_absolutize(node, pci_reg, &pci_abs_reg)) {
+                        printf("Failed to absolutize fb register.\n");
+                        return;
+                }
+
+                if (!ofw_pci_apply_ranges(node->parent, &pci_abs_reg,
+                    &fb_addr)) {
+                        printf("Failed to determine screen address.\n");
+                        return;
+                }
+
+                switch (fb_depth) {
+                case 8:
+                        fb_scanline = fb_linebytes * (fb_depth >> 3);
+                        visual = VISUAL_INDIRECT_8;
+                        break;
+                case 16:
+                        fb_scanline = fb_linebytes * (fb_depth >> 3);
+                        visual = VISUAL_RGB_5_6_5_BE;
+                        break;
+                case 24:
+                        fb_scanline = fb_linebytes * 4;
+                        visual = VISUAL_BGR_8_8_8_0;
+                        break;
+                case 32:
+                        fb_scanline = fb_linebytes * (fb_depth >> 3);
+                        visual = VISUAL_RGB_0_8_8_8;
+                        break;
+                default:
+                        printf("Unsupported bits per pixel.\n");
+                        return;
+                }
+                break;
+
         default:
                 panic("Unexpected type.");