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stos: bpal: Add framebuffer info request

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Signed-off-by: Chloe M. <chloe@mensia.org>
This commit is contained in:
Chloe M.
2026-06-22 02:40:50 +00:00
parent bb6e4d98d1
commit 800568f996
2 changed files with 52 additions and 0 deletions
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paw/stos/head/ke/bpal.h
+19
View File
@@ -11,13 +11,32 @@
#include <stdef.h>
/*
* Represents a framebuffer
*/
typedef struct {
VOID *Address;
UQUAD Width;
UQUAD Height;
UQUAD Pitch;
SHORT Bpp;
UCHAR RedMaskSize;
UCHAR RedMaskShift;
UCHAR GreenMaskSize;
UCHAR GreenMaskShift;
UCHAR BlueMaskSize;
UCHAR BlueMaskShift;
} BPAL_FRAMEBUFFER;
/*
* Boot protocol abstraction handle
*
* @KernelBase: Kernel load base
* @Framebuffer: Framebuffer info
*/
typedef struct {
UPTR KernelBase;
BPAL_FRAMEBUFFER Framebuffer;
} BPAL_HANDLE;
/*
paw/stos/ke/bpal/proto/limine.c
+33
View File
@@ -10,9 +10,18 @@
#include <ex/trace.h>
#include <lib/limine.h>
#define FRAMEBUFFER FbResp->framebuffers[0]
#define DTRACE(Fmt, ...) \
TRACE("[ BPAL ]: " Fmt, ##__VA_ARGS__)
/* Framebuffer request */
static struct limine_framebuffer_response *FbResp = NULL;
static struct limine_framebuffer_request FbReq = {
.id = LIMINE_FRAMEBUFFER_REQUEST_ID,
.revision = 0
};
/* HHDM request */
static struct limine_hhdm_response *HHDMResp = NULL;
static volatile struct limine_hhdm_request HHDMReq = {
@@ -34,12 +43,35 @@ static struct limine_bootloader_performance_request LoaderPerReq = {
.revision = 0
};
VOID
BpalInitFramebuffer(BPAL_HANDLE *Handle)
{
BPAL_FRAMEBUFFER *Framebuffer;
if (Handle == NULL) {
return;
}
Framebuffer = &Handle->Framebuffer;
Framebuffer->Address = FRAMEBUFFER->address;
Framebuffer->Width = FRAMEBUFFER->width;
Framebuffer->Height = FRAMEBUFFER->height;
Framebuffer->Pitch = FRAMEBUFFER->pitch;
Framebuffer->RedMaskSize = FRAMEBUFFER->red_mask_size;
Framebuffer->RedMaskShift = FRAMEBUFFER->red_mask_shift;
Framebuffer->GreenMaskSize = FRAMEBUFFER->green_mask_size;
Framebuffer->GreenMaskShift = FRAMEBUFFER->green_mask_shift;
Framebuffer->BlueMaskSize = FRAMEBUFFER->blue_mask_size;
Framebuffer->BlueMaskShift = FRAMEBUFFER->blue_mask_shift;
}
VOID
KeBpalLimineInit(BPAL_HANDLE *Handle)
{
LoaderInfoResp = LoaderInfoReq.response;
LoaderPerfResp = LoaderPerReq.response;
HHDMResp = HHDMReq.response;
FbResp = FbReq.response;
DTRACE(
"slut handed control by %s %s\n",
@@ -57,5 +89,6 @@ KeBpalLimineInit(BPAL_HANDLE *Handle)
LoaderPerfResp->exec_usec
);
BpalInitFramebuffer(Handle);
Handle->KernelBase = HHDMResp->offset;
}