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limine: Add framebuffer request

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This commit is contained in:
mintsuki 2022-03-14 12:05:59 +01:00
parent ea6475885d
commit fd2b3d696d
3 changed files with 91 additions and 9 deletions
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27
common/limine.h
View File

@ -30,13 +30,30 @@ struct limine_boot_info_request {
#define LIMINE_FRAMEBUFFER_REQUEST { LIMINE_COMMON_MAGIC, 0xcbfe81d7dd2d1977, 0x063150319ebc9b71 }
struct limine_framebuffer_response {
uint64_t flags;
#define LIMINE_FRAMEBUFFER_RGB 1
struct limine_framebuffer {
LIMINE_PTR(void *) address;
uint16_t width;
uint16_t height;
uint16_t pitch;
uint16_t bpp;
uint8_t memory_model;
uint8_t red_mask_size;
uint8_t red_mask_shift;
uint8_t green_mask_size;
uint8_t green_mask_shift;
uint8_t blue_mask_size;
uint8_t blue_mask_shift;
uint8_t unused;
};
#define LIMINE_FRAMEBUFFER_PREFER_LFB 0
#define LIMINE_FRAMEBUFFER_PREFER_TEXT 1
#define LIMINE_FRAMEBUFFER_ENFORCE_PREFER (1 << 8)
struct limine_framebuffer_response {
uint64_t flags;
uint64_t fbs_count;
LIMINE_PTR(struct limine_framebuffer *) fbs;
};
struct limine_framebuffer_request {
uint64_t id[4];

46
common/protos/limine.c
View File

@ -218,8 +218,50 @@ FEAT_END
FEAT_START
term_deinit();
struct fb_info *fb = NULL;
fb_init(fb, 0, 0, 0);
size_t req_width = 0, req_height = 0, req_bpp = 0;
char *resolution = config_get_value(config, 0, "RESOLUTION");
if (resolution != NULL) {
parse_resolution(&req_width, &req_height, &req_bpp, resolution);
}
struct fb_info fb;
if (!fb_init(&fb, req_width, req_height, req_bpp)) {
panic(true, "limine: Could not acquire framebuffer");
}
struct limine_framebuffer_request *framebuffer_request = get_request(LIMINE_FRAMEBUFFER_REQUEST);
if (framebuffer_request == NULL) {
break; // next feature
}
memmap_alloc_range(fb.framebuffer_addr,
(uint64_t)fb.framebuffer_pitch * fb.framebuffer_height,
MEMMAP_FRAMEBUFFER, false, false, false, true);
struct limine_framebuffer_response *framebuffer_response =
ext_mem_alloc(sizeof(struct limine_framebuffer_response));
// For now we only support 1 framebuffer
struct limine_framebuffer *fbp = ext_mem_alloc(sizeof(struct limine_framebuffer));
framebuffer_response->fbs = reported_addr(fbp);
framebuffer_response->fbs_count = 1;
fbp->memory_model = LIMINE_FRAMEBUFFER_RGB;
fbp->address = reported_addr((void *)(uintptr_t)fb.framebuffer_addr);
fbp->width = fb.framebuffer_width;
fbp->height = fb.framebuffer_height;
fbp->bpp = fb.framebuffer_bpp;
fbp->pitch = fb.framebuffer_pitch;
fbp->red_mask_size = fb.red_mask_size;
fbp->red_mask_shift = fb.red_mask_shift;
fbp->green_mask_size = fb.green_mask_size;
fbp->green_mask_shift = fb.green_mask_shift;
fbp->blue_mask_size = fb.blue_mask_size;
fbp->blue_mask_shift = fb.blue_mask_shift;
framebuffer_request->response = reported_addr(framebuffer_response);
FEAT_END
// Wrap-up stuff before memmap close

27
test/limine.c
View File

@ -8,8 +8,7 @@ static void limine_main(void);
__attribute__((used))
static struct limine_framebuffer_request framebuffer_request = {
.id = LIMINE_FRAMEBUFFER_REQUEST,
.flags = LIMINE_FRAMEBUFFER_PREFER_LFB | LIMINE_FRAMEBUFFER_ENFORCE_PREFER,
.response = NULL
.flags = 0, .response = NULL
};
__attribute__((used))
@ -84,5 +83,29 @@ FEAT_START
}
FEAT_END
FEAT_START
if (framebuffer_request.response == NULL) {
e9_printf("Framebuffer not passed");
break;
}
struct limine_framebuffer_response *fb_response = framebuffer_request.response;
e9_printf("%d framebuffer(s)", fb_response->fbs_count);
for (size_t i = 0; i < fb_response->fbs_count; i++) {
struct limine_framebuffer *fb = &fb_response->fbs[i];
e9_printf("Address: %x", fb->address);
e9_printf("Width: %d", fb->width);
e9_printf("Height: %d", fb->height);
e9_printf("Pitch: %d", fb->pitch);
e9_printf("BPP: %d", fb->bpp);
e9_printf("Memory model: %d", fb->memory_model);
e9_printf("Red mask size: %d", fb->red_mask_size);
e9_printf("Red mask shift: %d", fb->red_mask_shift);
e9_printf("Green mask size: %d", fb->green_mask_size);
e9_printf("Green mask shift: %d", fb->green_mask_shift);
e9_printf("Blue mask size: %d", fb->blue_mask_size);
e9_printf("Blue mask shift: %d", fb->blue_mask_shift);
}
FEAT_END
for (;;);
}