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fb: fix seek

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Matheus
2023-11-18 19:07:57 -03:00
parent 027f0903de
commit c19a125e17
1 changed files with 12 additions and 2 deletions
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kernel-src/io/fb.c
+12 -2
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@@ -76,6 +76,15 @@ static struct limine_framebuffer **fbs;
static fixinfo_t *fixinfos; static fixinfo_t *fixinfos;
static varinfo_t *varinfos; static varinfo_t *varinfos;
static int maxseek(int minor, size_t *max) {
if (minor >= count)
return ENODEV;
*max = fbs[minor]->pitch * fbs[minor]->height;
return 0;
}
static int read(int minor, void *buffer, size_t size, uintmax_t offset, int flags, size_t *readc) { static int read(int minor, void *buffer, size_t size, uintmax_t offset, int flags, size_t *readc) {
if (minor >= count) if (minor >= count)
return ENODEV; return ENODEV;
@@ -160,7 +169,7 @@ static int munmap(int minor, void *addr, uintmax_t offset, int flags) {
#define FBIOBLANK 0x4611 #define FBIOBLANK 0x4611
static int ioctl(int minor, unsigned long request, void *arg, int *result){ static int ioctl(int minor, unsigned long request, void *arg, int *result){
if(minor >= count) if (minor >= count)
return ENODEV; return ENODEV;
switch (request) { switch (request) {
@@ -182,7 +191,8 @@ static devops_t ops = {
.write = write, .write = write,
.mmap = mmap, .mmap = mmap,
.munmap = munmap, .munmap = munmap,
.ioctl = ioctl .ioctl = ioctl,
.maxseek = maxseek
}; };
void fb_init() { void fb_init() {