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-rw-r--r--src/kernel/arch/amd64/driver/fsroot.c23
-rw-r--r--src/kernel/arch/amd64/tty/tty.c6
-rw-r--r--src/kernel/arch/amd64/tty/tty.h3
-rw-r--r--src/kernel/arch/amd64/tty/vga.c33
4 files changed, 1 insertions, 64 deletions
diff --git a/src/kernel/arch/amd64/driver/fsroot.c b/src/kernel/arch/amd64/driver/fsroot.c
index e0f5e77..512b7da 100644
--- a/src/kernel/arch/amd64/driver/fsroot.c
+++ b/src/kernel/arch/amd64/driver/fsroot.c
@@ -11,7 +11,6 @@
enum {
HANDLE_ROOT,
- HANDLE_VGA,
HANDLE_ATA_ROOT,
HANDLE_ATA,
_SKIP = HANDLE_ATA + 4,
@@ -40,8 +39,6 @@ static int handle(struct vfs_request *req) {
switch (req->type) {
case VFSOP_OPEN:
if (exacteq(req, "/")) return HANDLE_ROOT;
- if (exacteq(req, "/vga")) return HANDLE_VGA;
-
if (exacteq(req, "/ata/")) return HANDLE_ATA_ROOT;
if (exacteq(req, "/ata/0"))
return ata_available(0) ? HANDLE_ATA+0 : -1;
@@ -60,15 +57,12 @@ static int handle(struct vfs_request *req) {
// TODO document directory read format
// TODO don't hardcode
const char src[] =
- "vga\0"
"com1\0"
"ps2\0"
"ata/\0"
"video/";
return req_readcopy(req, src, sizeof src);
}
- case HANDLE_VGA:
- return req_readcopy(req, (void*)0xB8000, 80*25*2);
case HANDLE_ATA_ROOT: {
char list[8] = {};
size_t len = 0;
@@ -92,23 +86,6 @@ static int handle(struct vfs_request *req) {
default: panic_invalid_state();
}
- case VFSOP_WRITE:
- switch (id) {
- case HANDLE_VGA: {
- void *vga = (void*)0xB8000;
- if (req->flags)
- return -1;
- fs_normslice(&req->offset, &req->input.len, 80*25*2, false);
- if (!virt_cpy_from(req->caller->pages, vga + req->offset,
- req->input.buf, req->input.len))
- {
- return -EFAULT;
- }
- return req->input.len;
- }
- default: return -1;
- }
-
case VFSOP_CLOSE:
return 0;
diff --git a/src/kernel/arch/amd64/tty/tty.c b/src/kernel/arch/amd64/tty/tty.c
index fcd4675..6730800 100644
--- a/src/kernel/arch/amd64/tty/tty.c
+++ b/src/kernel/arch/amd64/tty/tty.c
@@ -4,15 +4,11 @@
#include <shared/printf.h>
void tty_init(void) {
- vga_clear();
serial_preinit();
-
- vga_write("\x03 ", 2); // cp437 heart
serial_write("<3 ", 3);
}
-static void backend(void __attribute__((unused)) *arg, const char *buf, size_t len) {
- vga_write(buf, len);
+static void backend(void __attribute__((unused)) *arg, const char *buf, size_t len) {
serial_write(buf, len);
}
diff --git a/src/kernel/arch/amd64/tty/tty.h b/src/kernel/arch/amd64/tty/tty.h
index b96003d..a8f594c 100644
--- a/src/kernel/arch/amd64/tty/tty.h
+++ b/src/kernel/arch/amd64/tty/tty.h
@@ -1,7 +1,4 @@
#pragma once
#include <stddef.h>
-void vga_write(const char *buf, size_t len);
-void vga_clear(void);
-
void tty_init(void);
diff --git a/src/kernel/arch/amd64/tty/vga.c b/src/kernel/arch/amd64/tty/vga.c
deleted file mode 100644
index e5f2274..0000000
--- a/src/kernel/arch/amd64/tty/vga.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <kernel/arch/amd64/tty/tty.h>
-
-struct vga_cell {
- unsigned char c;
- unsigned char style;
-} __attribute__((__packed__));
-
-static const size_t vga_len = 80 * 25;
-static struct vga_cell *vga = (void*) 0xB8000;
-static size_t vga_pos = 0;
-
-static void vga_scroll(void) {
- for (size_t i = 0; i < vga_len - 80; i++)
- vga[i] = vga[i + 80];
- vga_pos -= 80;
-}
-
-static void vga_putchar(char c) {
- if (vga_pos >= vga_len - 80)
- vga_scroll();
- vga[vga_pos++].c = c;
-}
-
-void vga_write(const char *buf, size_t len) {
- for (size_t i = 0; i < len; i++)
- vga_putchar(buf[i]);
-}
-
-void vga_clear(void) {
- for (size_t i = 0; i < vga_len; i++)
- vga[i].c = ' ';
- vga_pos = 0;
-}